From bab7614d6d1b1fc96ec6c5a7ca34c8641060e659 Mon Sep 17 00:00:00 2001 From: Eric Miao Date: Mon, 29 Jun 2009 00:20:52 -0700 Subject: Input: add support for generic GPIO-based matrix keypad Original patch by Marek Vasut, modified by Eric in: 1. use delayed work to simplify the debouncing 2. combine col_polarity/row_polarity into a single active_low field 3. use a generic bit array based XOR algorithm to detect key press/release, which should make the column assertion time shorter and code a bit cleaner 4. remove the ALT_FN handling, which is no way generic, the ALT_FN key should be treated as no different from other keys, and translation will be done by user space by commands like 'loadkeys'. 5. explicitly disable row IRQs and flush potential pending work, and schedule an immediate scan after resuming as suggested by Uli Luckas 6. incorporate review comments from many others Patch tested on Littleton/PXA310 (though PXA310 has a dedicate keypad controller, I have to configure those pins as generic GPIO to use this driver, works quite well, though), and Sharp Zaurus model SL-C7x0 and SL-C1000. [dtor@mail.ru: fix error unwinding path, support changing keymap from userspace] Signed-off-by: Marek Vasut Reviewed-by: Trilok Soni Reviewed-by: Uli Luckas Reviewed-by: Russell King Reviewed-by: Robert Jarzmik Signed-off-by: Eric Miao Signed-off-by: Dmitry Torokhov --- include/linux/input/matrix_keypad.h | 65 +++++++++++++++++++++++++++++++++++++ 1 file changed, 65 insertions(+) create mode 100644 include/linux/input/matrix_keypad.h (limited to 'include/linux/input') diff --git a/include/linux/input/matrix_keypad.h b/include/linux/input/matrix_keypad.h new file mode 100644 index 000000000000..7964516c6954 --- /dev/null +++ b/include/linux/input/matrix_keypad.h @@ -0,0 +1,65 @@ +#ifndef _MATRIX_KEYPAD_H +#define _MATRIX_KEYPAD_H + +#include +#include + +#define MATRIX_MAX_ROWS 16 +#define MATRIX_MAX_COLS 16 + +#define KEY(row, col, val) ((((row) & (MATRIX_MAX_ROWS - 1)) << 24) |\ + (((col) & (MATRIX_MAX_COLS - 1)) << 16) |\ + (val & 0xffff)) + +#define KEY_ROW(k) (((k) >> 24) & 0xff) +#define KEY_COL(k) (((k) >> 16) & 0xff) +#define KEY_VAL(k) ((k) & 0xffff) + +/** + * struct matrix_keymap_data - keymap for matrix keyboards + * @keymap: pointer to array of uint32 values encoded with KEY() macro + * representing keymap + * @keymap_size: number of entries (initialized) in this keymap + * @max_keymap_size: maximum size of keymap supported by the device + * + * This structure is supposed to be used by platform code to supply + * keymaps to drivers that implement matrix-like keypads/keyboards. + */ +struct matrix_keymap_data { + const uint32_t *keymap; + unsigned int keymap_size; + unsigned int max_keymap_size; +}; + +/** + * struct matrix_keypad_platform_data - platform-dependent keypad data + * @keymap_data: pointer to &matrix_keymap_data + * @row_gpios: array of gpio numbers reporesenting rows + * @col_gpios: array of gpio numbers reporesenting colums + * @num_row_gpios: actual number of row gpios used by device + * @num_col_gpios: actual number of col gpios used by device + * @col_scan_delay_us: delay, measured in microseconds, that is + * needed before we can keypad after activating column gpio + * @debounce_ms: debounce interval in milliseconds + * + * This structure represents platform-specific data that use used by + * matrix_keypad driver to perform proper initialization. + */ +struct matrix_keypad_platform_data { + const struct matrix_keymap_data *keymap_data; + + unsigned int row_gpios[MATRIX_MAX_ROWS]; + unsigned int col_gpios[MATRIX_MAX_COLS]; + unsigned int num_row_gpios; + unsigned int num_col_gpios; + + unsigned int col_scan_delay_us; + + /* key debounce interval in milli-second */ + unsigned int debounce_ms; + + bool active_low; + bool wakeup; +}; + +#endif /* _MATRIX_KEYPAD_H */ -- cgit v1.2.3 From d82f1c35348cebe2fb2d4a4d31ce0ab0769e3d93 Mon Sep 17 00:00:00 2001 From: Eric Miao Date: Wed, 5 Aug 2009 01:24:41 -0700 Subject: Input: matrix_keypad - make matrix keymap size dynamic Remove assumption on the shift and size of rows/columns form matrix_keypad driver. Signed-off-by: Eric Miao Signed-off-by: Dmitry Torokhov --- drivers/input/keyboard/matrix_keypad.c | 18 +++++++++--------- include/linux/input/matrix_keypad.h | 13 +++++++------ 2 files changed, 16 insertions(+), 15 deletions(-) (limited to 'include/linux/input') diff --git a/drivers/input/keyboard/matrix_keypad.c b/drivers/input/keyboard/matrix_keypad.c index e9b2e7cb05be..541b981ff075 100644 --- a/drivers/input/keyboard/matrix_keypad.c +++ b/drivers/input/keyboard/matrix_keypad.c @@ -27,6 +27,7 @@ struct matrix_keypad { const struct matrix_keypad_platform_data *pdata; struct input_dev *input_dev; unsigned short *keycodes; + unsigned int row_shift; uint32_t last_key_state[MATRIX_MAX_COLS]; struct delayed_work work; @@ -136,7 +137,7 @@ static void matrix_keypad_scan(struct work_struct *work) if ((bits_changed & (1 << row)) == 0) continue; - code = (row << 4) + col; + code = MATRIX_SCAN_CODE(row, col, keypad->row_shift); input_event(input_dev, EV_MSC, MSC_SCAN, code); input_report_key(input_dev, keypad->keycodes[code], @@ -317,6 +318,7 @@ static int __devinit matrix_keypad_probe(struct platform_device *pdev) struct matrix_keypad *keypad; struct input_dev *input_dev; unsigned short *keycodes; + unsigned int row_shift; int i; int err; @@ -332,14 +334,11 @@ static int __devinit matrix_keypad_probe(struct platform_device *pdev) return -EINVAL; } - if (!keymap_data->max_keymap_size) { - dev_err(&pdev->dev, "invalid keymap data supplied\n"); - return -EINVAL; - } + row_shift = get_count_order(pdata->num_col_gpios); keypad = kzalloc(sizeof(struct matrix_keypad), GFP_KERNEL); - keycodes = kzalloc(keymap_data->max_keymap_size * - sizeof(keypad->keycodes), + keycodes = kzalloc((pdata->num_row_gpios << row_shift) * + sizeof(*keycodes), GFP_KERNEL); input_dev = input_allocate_device(); if (!keypad || !keycodes || !input_dev) { @@ -350,6 +349,7 @@ static int __devinit matrix_keypad_probe(struct platform_device *pdev) keypad->input_dev = input_dev; keypad->pdata = pdata; keypad->keycodes = keycodes; + keypad->row_shift = row_shift; keypad->stopped = true; INIT_DELAYED_WORK(&keypad->work, matrix_keypad_scan); spin_lock_init(&keypad->lock); @@ -363,7 +363,7 @@ static int __devinit matrix_keypad_probe(struct platform_device *pdev) input_dev->keycode = keycodes; input_dev->keycodesize = sizeof(*keycodes); - input_dev->keycodemax = keymap_data->max_keymap_size; + input_dev->keycodemax = pdata->num_row_gpios << keypad->row_shift; for (i = 0; i < keymap_data->keymap_size; i++) { unsigned int key = keymap_data->keymap[i]; @@ -371,7 +371,7 @@ static int __devinit matrix_keypad_probe(struct platform_device *pdev) unsigned int col = KEY_COL(key); unsigned short code = KEY_VAL(key); - keycodes[(row << 4) + col] = code; + keycodes[MATRIX_SCAN_CODE(row, col, row_shift)] = code; __set_bit(code, input_dev->keybit); } __clear_bit(KEY_RESERVED, input_dev->keybit); diff --git a/include/linux/input/matrix_keypad.h b/include/linux/input/matrix_keypad.h index 7964516c6954..15d5903af2dd 100644 --- a/include/linux/input/matrix_keypad.h +++ b/include/linux/input/matrix_keypad.h @@ -15,12 +15,13 @@ #define KEY_COL(k) (((k) >> 16) & 0xff) #define KEY_VAL(k) ((k) & 0xffff) +#define MATRIX_SCAN_CODE(row, col, row_shift) (((row) << (row_shift)) + (col)) + /** * struct matrix_keymap_data - keymap for matrix keyboards * @keymap: pointer to array of uint32 values encoded with KEY() macro * representing keymap * @keymap_size: number of entries (initialized) in this keymap - * @max_keymap_size: maximum size of keymap supported by the device * * This structure is supposed to be used by platform code to supply * keymaps to drivers that implement matrix-like keypads/keyboards. @@ -28,14 +29,13 @@ struct matrix_keymap_data { const uint32_t *keymap; unsigned int keymap_size; - unsigned int max_keymap_size; }; /** * struct matrix_keypad_platform_data - platform-dependent keypad data * @keymap_data: pointer to &matrix_keymap_data - * @row_gpios: array of gpio numbers reporesenting rows - * @col_gpios: array of gpio numbers reporesenting colums + * @row_gpios: pointer to array of gpio numbers representing rows + * @col_gpios: pointer to array of gpio numbers reporesenting colums * @num_row_gpios: actual number of row gpios used by device * @num_col_gpios: actual number of col gpios used by device * @col_scan_delay_us: delay, measured in microseconds, that is @@ -48,8 +48,9 @@ struct matrix_keymap_data { struct matrix_keypad_platform_data { const struct matrix_keymap_data *keymap_data; - unsigned int row_gpios[MATRIX_MAX_ROWS]; - unsigned int col_gpios[MATRIX_MAX_COLS]; + const unsigned int *row_gpios; + const unsigned int *col_gpios; + unsigned int num_row_gpios; unsigned int num_col_gpios; -- cgit v1.2.3 From 25a70e38cd57952b09a013bf070e03705ee4f2ff Mon Sep 17 00:00:00 2001 From: Daniel Mack Date: Wed, 12 Aug 2009 00:50:09 -0700 Subject: Input: eeti_ts - allow active high irq lines This adds a struct eeti_ts_platform_data which currently holds only one value to specify the interrupt polarity. The driver has a fallback if no platform data is passed in via the i2c_board_info, so no regression is caused. Signed-off-by: Daniel Mack Signed-off-by: Dmitry Torokhov --- drivers/input/touchscreen/eeti_ts.c | 22 +++++++++++++++++++--- include/linux/input/eeti_ts.h | 9 +++++++++ 2 files changed, 28 insertions(+), 3 deletions(-) create mode 100644 include/linux/input/eeti_ts.h (limited to 'include/linux/input') diff --git a/drivers/input/touchscreen/eeti_ts.c b/drivers/input/touchscreen/eeti_ts.c index 3ab92222a525..9029bd3f34e5 100644 --- a/drivers/input/touchscreen/eeti_ts.c +++ b/drivers/input/touchscreen/eeti_ts.c @@ -32,6 +32,7 @@ #include #include #include +#include static int flip_x; module_param(flip_x, bool, 0644); @@ -46,7 +47,7 @@ struct eeti_ts_priv { struct input_dev *input; struct work_struct work; struct mutex mutex; - int irq; + int irq, irq_active_high; }; #define EETI_TS_BITDEPTH (11) @@ -58,6 +59,11 @@ struct eeti_ts_priv { #define REPORT_BIT_HAS_PRESSURE (1 << 6) #define REPORT_RES_BITS(v) (((v) >> 1) + EETI_TS_BITDEPTH) +static inline int eeti_ts_irq_active(struct eeti_ts_priv *priv) +{ + return gpio_get_value(irq_to_gpio(priv->irq)) == priv->irq_active_high; +} + static void eeti_ts_read(struct work_struct *work) { char buf[6]; @@ -67,7 +73,7 @@ static void eeti_ts_read(struct work_struct *work) mutex_lock(&priv->mutex); - while (!gpio_get_value(irq_to_gpio(priv->irq)) && --to) + while (eeti_ts_irq_active(priv) && --to) i2c_master_recv(priv->client, buf, sizeof(buf)); if (!to) { @@ -140,8 +146,10 @@ static void eeti_ts_close(struct input_dev *dev) static int __devinit eeti_ts_probe(struct i2c_client *client, const struct i2c_device_id *idp) { + struct eeti_ts_platform_data *pdata; struct eeti_ts_priv *priv; struct input_dev *input; + unsigned int irq_flags; int err = -ENOMEM; /* In contrast to what's described in the datasheet, there seems @@ -180,6 +188,14 @@ static int __devinit eeti_ts_probe(struct i2c_client *client, priv->input = input; priv->irq = client->irq; + pdata = client->dev.platform_data; + + if (pdata) + priv->irq_active_high = pdata->irq_active_high; + + irq_flags = priv->irq_active_high ? + IRQF_TRIGGER_RISING : IRQF_TRIGGER_FALLING; + INIT_WORK(&priv->work, eeti_ts_read); i2c_set_clientdata(client, priv); input_set_drvdata(input, priv); @@ -188,7 +204,7 @@ static int __devinit eeti_ts_probe(struct i2c_client *client, if (err) goto err1; - err = request_irq(priv->irq, eeti_ts_isr, IRQF_TRIGGER_FALLING, + err = request_irq(priv->irq, eeti_ts_isr, irq_flags, client->name, priv); if (err) { dev_err(&client->dev, "Unable to request touchscreen IRQ.\n"); diff --git a/include/linux/input/eeti_ts.h b/include/linux/input/eeti_ts.h new file mode 100644 index 000000000000..f875b316249d --- /dev/null +++ b/include/linux/input/eeti_ts.h @@ -0,0 +1,9 @@ +#ifndef LINUX_INPUT_EETI_TS_H +#define LINUX_INPUT_EETI_TS_H + +struct eeti_ts_platform_data { + unsigned int irq_active_high; +}; + +#endif /* LINUX_INPUT_EETI_TS_H */ + -- cgit v1.2.3 From 77a53fd21870c726b670c0d8179294ac1ea33468 Mon Sep 17 00:00:00 2001 From: Dmitry Torokhov Date: Tue, 25 Aug 2009 19:24:13 -0700 Subject: Input: matrix-keypad - add function to build device keymap Signed-off-by: Dmitry Torokhov --- drivers/input/keyboard/matrix_keypad.c | 15 +++------------ drivers/input/keyboard/w90p910_keypad.c | 16 ++-------------- include/linux/input/matrix_keypad.h | 32 ++++++++++++++++++++++++++++++++ 3 files changed, 37 insertions(+), 26 deletions(-) (limited to 'include/linux/input') diff --git a/drivers/input/keyboard/matrix_keypad.c b/drivers/input/keyboard/matrix_keypad.c index 541b981ff075..91cfe5170265 100644 --- a/drivers/input/keyboard/matrix_keypad.c +++ b/drivers/input/keyboard/matrix_keypad.c @@ -319,7 +319,6 @@ static int __devinit matrix_keypad_probe(struct platform_device *pdev) struct input_dev *input_dev; unsigned short *keycodes; unsigned int row_shift; - int i; int err; pdata = pdev->dev.platform_data; @@ -363,18 +362,10 @@ static int __devinit matrix_keypad_probe(struct platform_device *pdev) input_dev->keycode = keycodes; input_dev->keycodesize = sizeof(*keycodes); - input_dev->keycodemax = pdata->num_row_gpios << keypad->row_shift; - - for (i = 0; i < keymap_data->keymap_size; i++) { - unsigned int key = keymap_data->keymap[i]; - unsigned int row = KEY_ROW(key); - unsigned int col = KEY_COL(key); - unsigned short code = KEY_VAL(key); + input_dev->keycodemax = pdata->num_row_gpios << row_shift; - keycodes[MATRIX_SCAN_CODE(row, col, row_shift)] = code; - __set_bit(code, input_dev->keybit); - } - __clear_bit(KEY_RESERVED, input_dev->keybit); + matrix_keypad_build_keymap(keymap_data, row_shift, + input_dev->keycode, input_dev->keybit); input_set_capability(input_dev, EV_MSC, MSC_SCAN); input_set_drvdata(input_dev, keypad); diff --git a/drivers/input/keyboard/w90p910_keypad.c b/drivers/input/keyboard/w90p910_keypad.c index b8598ae124ee..2d03dd0f9e07 100644 --- a/drivers/input/keyboard/w90p910_keypad.c +++ b/drivers/input/keyboard/w90p910_keypad.c @@ -126,7 +126,6 @@ static int __devinit w90p910_keypad_probe(struct platform_device *pdev) struct resource *res; int irq; int error; - int i; if (!pdata) { dev_err(&pdev->dev, "no platform data defined\n"); @@ -197,19 +196,8 @@ static int __devinit w90p910_keypad_probe(struct platform_device *pdev) input_dev->evbit[0] = BIT_MASK(EV_KEY) | BIT_MASK(EV_REP); input_set_capability(input_dev, EV_MSC, MSC_SCAN); - for (i = 0; i < keymap_data->keymap_size; i++) { - unsigned int key = keymap_data->keymap[i]; - unsigned int row = KEY_ROW(key); - unsigned int col = KEY_COL(key); - unsigned short keycode = KEY_VAL(key); - unsigned int scancode = MATRIX_SCAN_CODE(row, col, - W90P910_ROW_SHIFT); - - keypad->keymap[scancode] = keycode; - __set_bit(keycode, input_dev->keybit); - } - __clear_bit(KEY_RESERVED, input_dev->keybit); - + matrix_keypad_build_keymap(keymap_data, W90P910_ROW_SHIFT, + input_dev->keycode, input_dev->keybit); error = request_irq(keypad->irq, w90p910_keypad_irq_handler, IRQF_DISABLED, pdev->name, keypad); diff --git a/include/linux/input/matrix_keypad.h b/include/linux/input/matrix_keypad.h index 15d5903af2dd..b3cd42d50e16 100644 --- a/include/linux/input/matrix_keypad.h +++ b/include/linux/input/matrix_keypad.h @@ -63,4 +63,36 @@ struct matrix_keypad_platform_data { bool wakeup; }; +/** + * matrix_keypad_build_keymap - convert platform keymap into matrix keymap + * @keymap_data: keymap supplied by the platform code + * @row_shift: number of bits to shift row value by to advance to the next + * line in the keymap + * @keymap: expanded version of keymap that is suitable for use by + * matrix keyboad driver + * @keybit: pointer to bitmap of keys supported by input device + * + * This function converts platform keymap (encoded with KEY() macro) into + * an array of keycodes that is suitable for using in a standard matrix + * keyboard driver that uses row and col as indices. + */ +static inline void +matrix_keypad_build_keymap(const struct matrix_keymap_data *keymap_data, + unsigned int row_shift, + unsigned short *keymap, unsigned long *keybit) +{ + int i; + + for (i = 0; i < keymap_data->keymap_size; i++) { + unsigned int key = keymap_data->keymap[i]; + unsigned int row = KEY_ROW(key); + unsigned int col = KEY_COL(key); + unsigned short code = KEY_VAL(key); + + keymap[MATRIX_SCAN_CODE(row, col, row_shift)] = code; + __set_bit(code, keybit); + } + __clear_bit(KEY_RESERVED, keybit); +} + #endif /* _MATRIX_KEYPAD_H */ -- cgit v1.2.3 From d69249f4b6857c0b23ceca270ae591381b16bba9 Mon Sep 17 00:00:00 2001 From: Dmitry Torokhov Date: Mon, 16 Nov 2009 22:12:20 -0800 Subject: Input: input-polldev, matrix-keypad - include in kernel doc Make sure that polled input device and matrix keypad APIs are included with the rest of input API when generating kernel documentation. Also description of absres was missing as well. Signed-off-by: Dmitry Torokhov --- Documentation/DocBook/device-drivers.tmpl | 9 +++++++++ include/linux/input.h | 1 + include/linux/input/matrix_keypad.h | 3 +++ 3 files changed, 13 insertions(+) (limited to 'include/linux/input') diff --git a/Documentation/DocBook/device-drivers.tmpl b/Documentation/DocBook/device-drivers.tmpl index 94a20fe8fedf..e994d1d9fbe6 100644 --- a/Documentation/DocBook/device-drivers.tmpl +++ b/Documentation/DocBook/device-drivers.tmpl @@ -293,10 +293,19 @@ X!Idrivers/video/console/fonts.c Input Subsystem + Input core !Iinclude/linux/input.h !Edrivers/input/input.c !Edrivers/input/ff-core.c !Edrivers/input/ff-memless.c + + Polled input devices +!Iinclude/linux/input-polldev.h +!Edrivers/input/input-polldev.c + + Matrix keyboars/keypads +!Iinclude/linux/input/matrix_keypad.h + diff --git a/include/linux/input.h b/include/linux/input.h index 9a04e26daab2..56d8e048c646 100644 --- a/include/linux/input.h +++ b/include/linux/input.h @@ -1040,6 +1040,7 @@ struct ff_effect { * @absmin: minimum values for events coming from absolute axes * @absfuzz: describes noisiness for axes * @absflat: size of the center flat position (used by joydev) + * @absres: resolution used for events coming form absolute axes * @open: this method is called when the very first user calls * input_open_device(). The driver must prepare the device * to start generating events (start polling thread, diff --git a/include/linux/input/matrix_keypad.h b/include/linux/input/matrix_keypad.h index b3cd42d50e16..3bd018baae20 100644 --- a/include/linux/input/matrix_keypad.h +++ b/include/linux/input/matrix_keypad.h @@ -41,6 +41,9 @@ struct matrix_keymap_data { * @col_scan_delay_us: delay, measured in microseconds, that is * needed before we can keypad after activating column gpio * @debounce_ms: debounce interval in milliseconds + * @active_low: gpio polarity + * @wakeup: controls whether the device should be set up as wakeup + * source * * This structure represents platform-specific data that use used by * matrix_keypad driver to perform proper initialization. -- cgit v1.2.3 From fc1d003de39c306a44abce97c346921de31277cd Mon Sep 17 00:00:00 2001 From: Magnus Damm Date: Fri, 27 Nov 2009 07:32:24 +0000 Subject: sh: Move KEYSC header file This patch moves the KEYSC header file from the SuperH specific asm directory to a place where it can be shared by multiple architectures. Signed-off-by: Magnus Damm Signed-off-by: Paul Mundt --- arch/sh/boards/mach-ecovec24/setup.c | 2 +- arch/sh/boards/mach-kfr2r09/setup.c | 2 +- arch/sh/boards/mach-migor/setup.c | 2 +- arch/sh/boards/mach-se/7722/setup.c | 2 +- arch/sh/boards/mach-se/7724/setup.c | 2 +- arch/sh/include/asm/sh_keysc.h | 14 -------------- drivers/input/keyboard/sh_keysc.c | 2 +- include/linux/input/sh_keysc.h | 14 ++++++++++++++ 8 files changed, 20 insertions(+), 20 deletions(-) delete mode 100644 arch/sh/include/asm/sh_keysc.h create mode 100644 include/linux/input/sh_keysc.h (limited to 'include/linux/input') diff --git a/arch/sh/boards/mach-ecovec24/setup.c b/arch/sh/boards/mach-ecovec24/setup.c index 5932f049e782..0dd98ed5f7a8 100644 --- a/arch/sh/boards/mach-ecovec24/setup.c +++ b/arch/sh/boards/mach-ecovec24/setup.c @@ -20,12 +20,12 @@ #include #include #include +#include #include #include diff --git a/drivers/input/Kconfig b/drivers/input/Kconfig index cd50c00ab20f..50af91ebd075 100644 --- a/drivers/input/Kconfig +++ b/drivers/input/Kconfig @@ -8,7 +8,7 @@ menu "Input device support" config INPUT tristate "Generic input layer (needed for keyboard, mouse, ...)" if EMBEDDED default y - ---help--- + help Say Y here if you have any input device (mouse, keyboard, tablet, joystick, steering wheel ...) connected to your system and want it to be available to applications. This includes standard PS/2 @@ -27,8 +27,7 @@ if INPUT config INPUT_FF_MEMLESS tristate "Support for memoryless force-feedback devices" - default n - ---help--- + help Say Y here if you have memoryless force-feedback input device such as Logitech WingMan Force 3D, ThrustMaster FireStorm Dual Power 2, or similar. You will also need to enable hardware-specific @@ -52,12 +51,25 @@ config INPUT_POLLDEV To compile this driver as a module, choose M here: the module will be called input-polldev. +config INPUT_SPARSEKMAP + tristate "Sparse keymap support library" + help + Say Y here if you are using a driver for an input + device that uses sparse keymap. This option is only + useful for out-of-tree drivers since in-tree drivers + select it automatically. + + If unsure, say N. + + To compile this driver as a module, choose M here: the + module will be called sparse-keymap. + comment "Userland interfaces" config INPUT_MOUSEDEV tristate "Mouse interface" if EMBEDDED default y - ---help--- + help Say Y here if you want your mouse to be accessible as char devices 13:32+ - /dev/input/mouseX and 13:63 - /dev/input/mice as an emulated IntelliMouse Explorer PS/2 mouse. That way, all user space @@ -73,7 +85,7 @@ config INPUT_MOUSEDEV_PSAUX bool "Provide legacy /dev/psaux device" default y depends on INPUT_MOUSEDEV - ---help--- + help Say Y here if you want your mouse also be accessible as char device 10:1 - /dev/psaux. The data available through /dev/psaux is exactly the same as the data from /dev/input/mice. @@ -103,7 +115,7 @@ config INPUT_MOUSEDEV_SCREEN_Y config INPUT_JOYDEV tristate "Joystick interface" - ---help--- + help Say Y here if you want your joystick or gamepad to be accessible as char device 13:0+ - /dev/input/jsX device. @@ -125,7 +137,7 @@ config INPUT_EVDEV config INPUT_EVBUG tristate "Event debugging" - ---help--- + help Say Y here if you have a problem with the input subsystem and want all events (keypresses, mouse movements), to be output to the system log. While this is useful for debugging, it's also @@ -140,7 +152,7 @@ config INPUT_EVBUG config INPUT_APMPOWER tristate "Input Power Event -> APM Bridge" if EMBEDDED depends on INPUT && APM_EMULATION - ---help--- + help Say Y here if you want suspend key events to trigger a user requested suspend through APM. This is useful on embedded systems where such behaviour is desired without userspace diff --git a/drivers/input/Makefile b/drivers/input/Makefile index 4c9c745a7020..7ad212d31f99 100644 --- a/drivers/input/Makefile +++ b/drivers/input/Makefile @@ -9,6 +9,7 @@ input-core-objs := input.o input-compat.o ff-core.o obj-$(CONFIG_INPUT_FF_MEMLESS) += ff-memless.o obj-$(CONFIG_INPUT_POLLDEV) += input-polldev.o +obj-$(CONFIG_INPUT_SPARSEKMAP) += sparse-keymap.o obj-$(CONFIG_INPUT_MOUSEDEV) += mousedev.o obj-$(CONFIG_INPUT_JOYDEV) += joydev.o diff --git a/drivers/input/input-polldev.c b/drivers/input/input-polldev.c index 6a2eb399b988..aa6713b4a988 100644 --- a/drivers/input/input-polldev.c +++ b/drivers/input/input-polldev.c @@ -212,7 +212,7 @@ EXPORT_SYMBOL(input_allocate_polled_device); * @dev: device to free * * The function frees memory allocated for polling device and drops - * reference to the associated input device (if present). + * reference to the associated input device. */ void input_free_polled_device(struct input_polled_dev *dev) { @@ -258,6 +258,15 @@ int input_register_polled_device(struct input_polled_dev *dev) return error; } + /* + * Take extra reference to the underlying input device so + * that it survives call to input_unregister_polled_device() + * and is deleted only after input_free_polled_device() + * has been invoked. This is needed to ease task of freeing + * sparse keymaps. + */ + input_get_device(input); + return 0; } EXPORT_SYMBOL(input_register_polled_device); @@ -269,8 +278,6 @@ EXPORT_SYMBOL(input_register_polled_device); * The function unregisters previously registered polled input * device from input layer. Polling is stopped and device is * ready to be freed with call to input_free_polled_device(). - * Callers should not attempt to access dev->input pointer - * after calling this function. */ void input_unregister_polled_device(struct input_polled_dev *dev) { @@ -278,7 +285,6 @@ void input_unregister_polled_device(struct input_polled_dev *dev) &input_polldev_attribute_group); input_unregister_device(dev->input); - dev->input = NULL; } EXPORT_SYMBOL(input_unregister_polled_device); diff --git a/drivers/input/sparse-keymap.c b/drivers/input/sparse-keymap.c new file mode 100644 index 000000000000..fbd3987af57f --- /dev/null +++ b/drivers/input/sparse-keymap.c @@ -0,0 +1,250 @@ +/* + * Generic support for sparse keymaps + * + * Copyright (c) 2009 Dmitry Torokhov + * + * Derived from wistron button driver: + * Copyright (C) 2005 Miloslav Trmac + * Copyright (C) 2005 Bernhard Rosenkraenzer + * Copyright (C) 2005 Dmitry Torokhov + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License version 2 as published by + * the Free Software Foundation. + */ + +#include +#include + +MODULE_AUTHOR("Dmitry Torokhov "); +MODULE_DESCRIPTION("Generic support for sparse keymaps"); +MODULE_LICENSE("GPL v2"); +MODULE_VERSION("0.1"); + +/** + * sparse_keymap_entry_from_scancode - perform sparse keymap lookup + * @dev: Input device using sparse keymap + * @code: Scan code + * + * This function is used to perform &struct key_entry lookup in an + * input device using sparse keymap. + */ +struct key_entry *sparse_keymap_entry_from_scancode(struct input_dev *dev, + unsigned int code) +{ + struct key_entry *key; + + for (key = dev->keycode; key->type != KE_END; key++) + if (code == key->code) + return key; + + return NULL; +} +EXPORT_SYMBOL(sparse_keymap_entry_from_scancode); + +/** + * sparse_keymap_entry_from_keycode - perform sparse keymap lookup + * @dev: Input device using sparse keymap + * @keycode: Key code + * + * This function is used to perform &struct key_entry lookup in an + * input device using sparse keymap. + */ +struct key_entry *sparse_keymap_entry_from_keycode(struct input_dev *dev, + unsigned int keycode) +{ + struct key_entry *key; + + for (key = dev->keycode; key->type != KE_END; key++) + if (key->type == KE_KEY && keycode == key->keycode) + return key; + + return NULL; +} +EXPORT_SYMBOL(sparse_keymap_entry_from_keycode); + +static int sparse_keymap_getkeycode(struct input_dev *dev, + int scancode, int *keycode) +{ + const struct key_entry *key = + sparse_keymap_entry_from_scancode(dev, scancode); + + if (key && key->type == KE_KEY) { + *keycode = key->keycode; + return 0; + } + + return -EINVAL; +} + +static int sparse_keymap_setkeycode(struct input_dev *dev, + int scancode, int keycode) +{ + struct key_entry *key; + int old_keycode; + + if (keycode < 0 || keycode > KEY_MAX) + return -EINVAL; + + key = sparse_keymap_entry_from_scancode(dev, scancode); + if (key && key->type == KE_KEY) { + old_keycode = key->keycode; + key->keycode = keycode; + set_bit(keycode, dev->keybit); + if (!sparse_keymap_entry_from_keycode(dev, old_keycode)) + clear_bit(old_keycode, dev->keybit); + return 0; + } + + return -EINVAL; +} + +/** + * sparse_keymap_setup - set up sparse keymap for an input device + * @dev: Input device + * @keymap: Keymap in form of array of &key_entry structures ending + * with %KE_END type entry + * @setup: Function that can be used to adjust keymap entries + * depending on device's deeds, may be %NULL + * + * The function calculates size and allocates copy of the original + * keymap after which sets up input device event bits appropriately. + * Before destroying input device allocated keymap should be freed + * with a call to sparse_keymap_free(). + */ +int sparse_keymap_setup(struct input_dev *dev, + const struct key_entry *keymap, + int (*setup)(struct input_dev *, struct key_entry *)) +{ + size_t map_size = 1; /* to account for the last KE_END entry */ + const struct key_entry *e; + struct key_entry *map, *entry; + int i; + int error; + + for (e = keymap; e->type != KE_END; e++) + map_size++; + + map = kcalloc(map_size, sizeof (struct key_entry), GFP_KERNEL); + if (!map) + return -ENOMEM; + + memcpy(map, keymap, map_size * sizeof (struct key_entry)); + + for (i = 0; i < map_size; i++) { + entry = &map[i]; + + if (setup) { + error = setup(dev, entry); + if (error) + goto err_out; + } + + switch (entry->type) { + case KE_KEY: + __set_bit(EV_KEY, dev->evbit); + __set_bit(entry->keycode, dev->keybit); + break; + + case KE_SW: + __set_bit(EV_SW, dev->evbit); + __set_bit(entry->sw.code, dev->swbit); + break; + } + } + + dev->keycode = map; + dev->keycodemax = map_size; + dev->getkeycode = sparse_keymap_getkeycode; + dev->setkeycode = sparse_keymap_setkeycode; + + return 0; + + err_out: + kfree(keymap); + return error; + +} +EXPORT_SYMBOL(sparse_keymap_setup); + +/** + * sparse_keymap_free - free memory allocated for sparse keymap + * @dev: Input device using sparse keymap + * + * This function is used to free memory allocated by sparse keymap + * in an input device that was set up by sparse_keymap_setup(). + */ +void sparse_keymap_free(struct input_dev *dev) +{ + kfree(dev->keycode); + dev->keycode = NULL; + dev->keycodemax = 0; + dev->getkeycode = NULL; + dev->setkeycode = NULL; +} +EXPORT_SYMBOL(sparse_keymap_free); + +/** + * sparse_keymap_report_entry - report event corresponding to given key entry + * @dev: Input device for which event should be reported + * @ke: key entry describing event + * @value: Value that should be reported (ignored by %KE_SW entries) + * @autorelease: Signals whether release event should be emitted for %KE_KEY + * entries right after reporting press event, ignored by all other + * entries + * + * This function is used to report input event described by given + * &struct key_entry. + */ +void sparse_keymap_report_entry(struct input_dev *dev, const struct key_entry *ke, + unsigned int value, bool autorelease) +{ + switch (ke->type) { + case KE_KEY: + input_report_key(dev, ke->keycode, value); + input_sync(dev); + if (value && autorelease) { + input_report_key(dev, ke->keycode, 0); + input_sync(dev); + } + break; + + case KE_SW: + value = ke->sw.value; + /* fall through */ + + case KE_VSW: + input_report_switch(dev, ke->sw.code, value); + break; + } +} +EXPORT_SYMBOL(sparse_keymap_report_entry); + +/** + * sparse_keymap_report_event - report event corresponding to given scancode + * @dev: Input device using sparse keymap + * @code: Scan code + * @value: Value that should be reported (ignored by %KE_SW entries) + * @autorelease: Signals whether release event should be emitted for %KE_KEY + * entries right after reporting press event, ignored by all other + * entries + * + * This function is used to perform lookup in an input device using sparse + * keymap and report corresponding event. Returns %true if lookup was + * successful and %false otherwise. + */ +bool sparse_keymap_report_event(struct input_dev *dev, unsigned int code, + unsigned int value, bool autorelease) +{ + const struct key_entry *ke = + sparse_keymap_entry_from_scancode(dev, code); + + if (ke) { + sparse_keymap_report_entry(dev, ke, value, autorelease); + return true; + } + + return false; +} +EXPORT_SYMBOL(sparse_keymap_report_event); + diff --git a/include/linux/input/sparse-keymap.h b/include/linux/input/sparse-keymap.h new file mode 100644 index 000000000000..52db62064c6e --- /dev/null +++ b/include/linux/input/sparse-keymap.h @@ -0,0 +1,62 @@ +#ifndef _SPARSE_KEYMAP_H +#define _SPARSE_KEYMAP_H + +/* + * Copyright (c) 2009 Dmitry Torokhov + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License version 2 as published by + * the Free Software Foundation. + */ + +#define KE_END 0 /* Indicates end of keymap */ +#define KE_KEY 1 /* Ordinary key/button */ +#define KE_SW 2 /* Switch (predetermined value) */ +#define KE_VSW 3 /* Switch (value supplied at runtime) */ +#define KE_IGNORE 4 /* Known entry that should be ignored */ +#define KE_LAST KE_IGNORE + +/** + * struct key_entry - keymap entry for use in sparse keymap + * @type: Type of the key entry (KE_KEY, KE_SW, KE_VSW, KE_END); + * drivers are allowed to extend the list with their own + * private definitions. + * @code: Device-specific data identifying the button/switch + * @keycode: KEY_* code assigned to a key/button + * @sw.code: SW_* code assigned to a switch + * @sw.value: Value that should be sent in an input even when KE_SW + * switch is toggled. KE_VSW switches ignore this field and + * expect driver to supply value for the event. + * + * This structure defines an entry in a sparse keymap used by some + * input devices for which traditional table-based approach is not + * suitable. + */ +struct key_entry { + int type; /* See KE_* above */ + u32 code; + union { + u16 keycode; /* For KE_KEY */ + struct { /* For KE_SW, KE_VSW */ + u8 code; + u8 value; /* For KE_SW, ignored by KE_VSW */ + } sw; + }; +}; + +struct key_entry *sparse_keymap_entry_from_scancode(struct input_dev *dev, + unsigned int code); +struct key_entry *sparse_keymap_entry_from_keycode(struct input_dev *dev, + unsigned int code); +int sparse_keymap_setup(struct input_dev *dev, + const struct key_entry *keymap, + int (*setup)(struct input_dev *, struct key_entry *)); +void sparse_keymap_free(struct input_dev *dev); + +void sparse_keymap_report_entry(struct input_dev *dev, const struct key_entry *ke, + unsigned int value, bool autorelease); + +bool sparse_keymap_report_event(struct input_dev *dev, unsigned int code, + unsigned int value, bool autorelease); + +#endif /* _SPARSE_KEYMAP_H */ -- cgit v1.2.3 From 3bf127637e22ddf95e67e10a23c339cee3d52429 Mon Sep 17 00:00:00 2001 From: Magnus Damm Date: Thu, 21 Jan 2010 00:02:36 -0800 Subject: Input: sh_keysc - add mode 4 and mode 5 support Add Mode 4 and Mode 5 support to the SH_KEYSC driver. These modes allow slightly larger key pad matrixes. While at it, make use of resource_size(). Signed-off-by: Magnus Damm Signed-off-by: Dmitry Torokhov --- drivers/input/keyboard/sh_keysc.c | 6 +++--- include/linux/input/sh_keysc.h | 5 +++-- 2 files changed, 6 insertions(+), 5 deletions(-) (limited to 'include/linux/input') diff --git a/drivers/input/keyboard/sh_keysc.c b/drivers/input/keyboard/sh_keysc.c index 076111fc72d2..25706f802258 100644 --- a/drivers/input/keyboard/sh_keysc.c +++ b/drivers/input/keyboard/sh_keysc.c @@ -36,6 +36,8 @@ static const struct { [SH_KEYSC_MODE_1] = { 0, 6, 5 }, [SH_KEYSC_MODE_2] = { 1, 5, 6 }, [SH_KEYSC_MODE_3] = { 2, 4, 7 }, + [SH_KEYSC_MODE_4] = { 3, 6, 6 }, + [SH_KEYSC_MODE_5] = { 4, 6, 7 }, }; struct sh_keysc_priv { @@ -122,8 +124,6 @@ static irqreturn_t sh_keysc_isr(int irq, void *dev_id) return IRQ_HANDLED; } -#define res_size(res) ((res)->end - (res)->start + 1) - static int __devinit sh_keysc_probe(struct platform_device *pdev) { struct sh_keysc_priv *priv; @@ -164,7 +164,7 @@ static int __devinit sh_keysc_probe(struct platform_device *pdev) memcpy(&priv->pdata, pdev->dev.platform_data, sizeof(priv->pdata)); pdata = &priv->pdata; - priv->iomem_base = ioremap_nocache(res->start, res_size(res)); + priv->iomem_base = ioremap_nocache(res->start, resource_size(res)); if (priv->iomem_base == NULL) { dev_err(&pdev->dev, "failed to remap I/O memory\n"); error = -ENXIO; diff --git a/include/linux/input/sh_keysc.h b/include/linux/input/sh_keysc.h index c211b5cf08e6..2aff38bcf2ba 100644 --- a/include/linux/input/sh_keysc.h +++ b/include/linux/input/sh_keysc.h @@ -1,10 +1,11 @@ #ifndef __SH_KEYSC_H__ #define __SH_KEYSC_H__ -#define SH_KEYSC_MAXKEYS 30 +#define SH_KEYSC_MAXKEYS 42 struct sh_keysc_info { - enum { SH_KEYSC_MODE_1, SH_KEYSC_MODE_2, SH_KEYSC_MODE_3 } mode; + enum { SH_KEYSC_MODE_1, SH_KEYSC_MODE_2, SH_KEYSC_MODE_3, + SH_KEYSC_MODE_4, SH_KEYSC_MODE_5 } mode; int scan_timing; /* 0 -> 7, see KYCR1, SCN[2:0] */ int delay; int kycr2_delay; -- cgit v1.2.3 From 8f8be2439cd368cc6ba94888919ee90b5a26f0cb Mon Sep 17 00:00:00 2001 From: Magnus Damm Date: Wed, 10 Feb 2010 23:03:22 -0800 Subject: Input: sh_keysc - update the driver with mode 6 Add mode 6 support to the sh_keysc driver. Also update the KYOUTDR mask value to include all 16 register bits. Signed-off-by: Magnus Damm Signed-off-by: Dmitry Torokhov --- drivers/input/keyboard/sh_keysc.c | 3 ++- include/linux/input/sh_keysc.h | 6 +++--- 2 files changed, 5 insertions(+), 4 deletions(-) (limited to 'include/linux/input') diff --git a/drivers/input/keyboard/sh_keysc.c b/drivers/input/keyboard/sh_keysc.c index c2fc97732f0c..854e2035cd6e 100644 --- a/drivers/input/keyboard/sh_keysc.c +++ b/drivers/input/keyboard/sh_keysc.c @@ -31,6 +31,7 @@ static const struct { [SH_KEYSC_MODE_3] = { 2, 4, 7 }, [SH_KEYSC_MODE_4] = { 3, 6, 6 }, [SH_KEYSC_MODE_5] = { 4, 6, 7 }, + [SH_KEYSC_MODE_6] = { 5, 7, 7 }, }; struct sh_keysc_priv { @@ -109,7 +110,7 @@ static irqreturn_t sh_keysc_isr(int irq, void *dev_id) n = keyin_nr * i; /* drive one KEYOUT pin low, read KEYIN pins */ - sh_keysc_write(priv, KYOUTDR, 0xfff ^ (3 << (i * 2))); + sh_keysc_write(priv, KYOUTDR, 0xffff ^ (3 << (i * 2))); udelay(pdata->delay); tmp = sh_keysc_read(priv, KYINDR); diff --git a/include/linux/input/sh_keysc.h b/include/linux/input/sh_keysc.h index 2aff38bcf2ba..649dc7f12925 100644 --- a/include/linux/input/sh_keysc.h +++ b/include/linux/input/sh_keysc.h @@ -1,15 +1,15 @@ #ifndef __SH_KEYSC_H__ #define __SH_KEYSC_H__ -#define SH_KEYSC_MAXKEYS 42 +#define SH_KEYSC_MAXKEYS 49 struct sh_keysc_info { enum { SH_KEYSC_MODE_1, SH_KEYSC_MODE_2, SH_KEYSC_MODE_3, - SH_KEYSC_MODE_4, SH_KEYSC_MODE_5 } mode; + SH_KEYSC_MODE_4, SH_KEYSC_MODE_5, SH_KEYSC_MODE_6 } mode; int scan_timing; /* 0 -> 7, see KYCR1, SCN[2:0] */ int delay; int kycr2_delay; - int keycodes[SH_KEYSC_MAXKEYS]; + int keycodes[SH_KEYSC_MAXKEYS]; /* KEYIN * KEYOUT */ }; #endif /* __SH_KEYSC_H__ */ -- cgit v1.2.3 From 9d32c30542f9ecdb4b96a1a960924c9f403e3562 Mon Sep 17 00:00:00 2001 From: H Hartley Sweeten Date: Mon, 5 Apr 2010 22:29:09 -0700 Subject: Input: matrix_keypad - allow platform to disable key autorepeat In an embedded system the matrix_keypad driver might be used to interface with an external control panel and not an actual keyboard. On the control panel some of the keys could be used to turn on/off various functions. If key autorepeat is enabled this causes the function to quickly toggle between the on and off states and makes operation difficult. Add an option in the platform-specific data to disable the key autorepeat. Signed-off-by: H Hartley Sweeten Signed-off-by: Dmitry Torokhov --- drivers/input/keyboard/matrix_keypad.c | 4 +++- include/linux/input/matrix_keypad.h | 2 ++ 2 files changed, 5 insertions(+), 1 deletion(-) (limited to 'include/linux/input') diff --git a/drivers/input/keyboard/matrix_keypad.c b/drivers/input/keyboard/matrix_keypad.c index d3c8b61a941d..f9d86cfb0db0 100644 --- a/drivers/input/keyboard/matrix_keypad.c +++ b/drivers/input/keyboard/matrix_keypad.c @@ -373,7 +373,9 @@ static int __devinit matrix_keypad_probe(struct platform_device *pdev) input_dev->name = pdev->name; input_dev->id.bustype = BUS_HOST; input_dev->dev.parent = &pdev->dev; - input_dev->evbit[0] = BIT_MASK(EV_KEY) | BIT_MASK(EV_REP); + input_dev->evbit[0] = BIT_MASK(EV_KEY); + if (!pdata->no_autorepeat) + input_dev->evbit[0] |= BIT_MASK(EV_REP); input_dev->open = matrix_keypad_start; input_dev->close = matrix_keypad_stop; diff --git a/include/linux/input/matrix_keypad.h b/include/linux/input/matrix_keypad.h index 3bd018baae20..c964cd7f436a 100644 --- a/include/linux/input/matrix_keypad.h +++ b/include/linux/input/matrix_keypad.h @@ -44,6 +44,7 @@ struct matrix_keymap_data { * @active_low: gpio polarity * @wakeup: controls whether the device should be set up as wakeup * source + * @no_autorepeat: disable key autorepeat * * This structure represents platform-specific data that use used by * matrix_keypad driver to perform proper initialization. @@ -64,6 +65,7 @@ struct matrix_keypad_platform_data { bool active_low; bool wakeup; + bool no_autorepeat; }; /** -- cgit v1.2.3 From 31a6296333b94964e9a073649840bb34d4603369 Mon Sep 17 00:00:00 2001 From: Bryan Wu Date: Sun, 21 Mar 2010 23:23:24 -0700 Subject: Input: add Analog Devices AD714x captouch input driver AD7142 and AD7147 are integrated capacitance-to-digital converters (CDCs) with on-chip environmental calibration for use in systems requiring a novel user input method. The AD7142 and AD7147 can interface to external capacitance sensors implementing functions such as buttons, scrollwheels, sliders, touchpads and so on. The chips don't restrict the specific usage. Depending on the hardware connection, one special target board can include one or several these components. The platform_data for the device's "struct device" holds these information. The data-struct defined in head file descript the hardware feature of button/scrollwheel/slider/touchpad components on target boards, which need be filled in the arch/mach-/. As the result, the driver is independent of boards. It gets the components layout from the platform_data, registers related devices, fullfills the algorithms and state machines for these components and report related input events to up level. Signed-off-by: Bryan Wu Signed-off-by: Michael Hennerich Signed-off-by: Barry Song <21cnbao@gmail.com> Signed-off-by: Mike Frysinger Signed-off-by: Dmitry Torokhov --- drivers/input/misc/Kconfig | 30 + drivers/input/misc/Makefile | 3 + drivers/input/misc/ad714x-i2c.c | 137 ++++ drivers/input/misc/ad714x-spi.c | 103 +++ drivers/input/misc/ad714x.c | 1331 +++++++++++++++++++++++++++++++++++++++ drivers/input/misc/ad714x.h | 26 + include/linux/input.h | 1 + include/linux/input/ad714x.h | 63 ++ 8 files changed, 1694 insertions(+) create mode 100644 drivers/input/misc/ad714x-i2c.c create mode 100644 drivers/input/misc/ad714x-spi.c create mode 100644 drivers/input/misc/ad714x.c create mode 100644 drivers/input/misc/ad714x.h create mode 100644 include/linux/input/ad714x.h (limited to 'include/linux/input') diff --git a/drivers/input/misc/Kconfig b/drivers/input/misc/Kconfig index 54a9c2d0ba1c..a4b9dc5cf456 100644 --- a/drivers/input/misc/Kconfig +++ b/drivers/input/misc/Kconfig @@ -22,6 +22,36 @@ config INPUT_88PM860X_ONKEY To compile this driver as a module, choose M here: the module will be called 88pm860x_onkey. +config INPUT_AD714X + tristate "Analog Devices AD714x Capacitance Touch Sensor" + help + Say Y here if you want to support an AD7142/AD7147 touch sensor. + + You should select a bus connection too. + + To compile this driver as a module, choose M here: the + module will be called ad714x. + +config INPUT_AD714X_I2C + tristate "support I2C bus connection" + depends on INPUT_AD714X && I2C + default y + help + Say Y here if you have AD7142/AD7147 hooked to an I2C bus. + + To compile this driver as a module, choose M here: the + module will be called ad714x-i2c. + +config INPUT_AD714X_SPI + tristate "support SPI bus connection" + depends on INPUT_AD714X && SPI + default y + help + Say Y here if you have AD7142/AD7147 hooked to a SPI bus. + + To compile this driver as a module, choose M here: the + module will be called ad714x-spi. + config INPUT_PCSPKR tristate "PC Speaker support" depends on PCSPKR_PLATFORM diff --git a/drivers/input/misc/Makefile b/drivers/input/misc/Makefile index a662df21bf57..f9f577031e06 100644 --- a/drivers/input/misc/Makefile +++ b/drivers/input/misc/Makefile @@ -5,6 +5,9 @@ # Each configuration option enables a list of files. obj-$(CONFIG_INPUT_88PM860X_ONKEY) += 88pm860x_onkey.o +obj-$(CONFIG_INPUT_AD714X) += ad714x.o +obj-$(CONFIG_INPUT_AD714X_I2C) += ad714x-i2c.o +obj-$(CONFIG_INPUT_AD714X_SPI) += ad714x-spi.o obj-$(CONFIG_INPUT_APANEL) += apanel.o obj-$(CONFIG_INPUT_ATI_REMOTE) += ati_remote.o obj-$(CONFIG_INPUT_ATI_REMOTE2) += ati_remote2.o diff --git a/drivers/input/misc/ad714x-i2c.c b/drivers/input/misc/ad714x-i2c.c new file mode 100644 index 000000000000..a2cb6b426dc7 --- /dev/null +++ b/drivers/input/misc/ad714x-i2c.c @@ -0,0 +1,137 @@ +/* + * AD714X CapTouch Programmable Controller driver (I2C bus) + * + * Copyright 2009 Analog Devices Inc. + * + * Licensed under the GPL-2 or later. + */ + +#include /* BUS_I2C */ +#include +#include +#include +#include "ad714x.h" + +#ifdef CONFIG_PM +static int ad714x_i2c_suspend(struct i2c_client *client, pm_message_t message) +{ + return ad714x_disable(i2c_get_clientdata(client)); +} + +static int ad714x_i2c_resume(struct i2c_client *client) +{ + return ad714x_enable(i2c_get_clientdata(client)); +} +#else +# define ad714x_i2c_suspend NULL +# define ad714x_i2c_resume NULL +#endif + +static int ad714x_i2c_write(struct device *dev, unsigned short reg, + unsigned short data) +{ + struct i2c_client *client = to_i2c_client(dev); + int ret = 0; + u8 *_reg = (u8 *)® + u8 *_data = (u8 *)&data; + + u8 tx[4] = { + _reg[1], + _reg[0], + _data[1], + _data[0] + }; + + ret = i2c_master_send(client, tx, 4); + if (ret < 0) + dev_err(&client->dev, "I2C write error\n"); + + return ret; +} + +static int ad714x_i2c_read(struct device *dev, unsigned short reg, + unsigned short *data) +{ + struct i2c_client *client = to_i2c_client(dev); + int ret = 0; + u8 *_reg = (u8 *)® + u8 *_data = (u8 *)data; + + u8 tx[2] = { + _reg[1], + _reg[0] + }; + u8 rx[2]; + + ret = i2c_master_send(client, tx, 2); + if (ret >= 0) + ret = i2c_master_recv(client, rx, 2); + + if (unlikely(ret < 0)) { + dev_err(&client->dev, "I2C read error\n"); + } else { + _data[0] = rx[1]; + _data[1] = rx[0]; + } + + return ret; +} + +static int __devinit ad714x_i2c_probe(struct i2c_client *client, + const struct i2c_device_id *id) +{ + struct ad714x_chip *chip; + + chip = ad714x_probe(&client->dev, BUS_I2C, client->irq, + ad714x_i2c_read, ad714x_i2c_write); + if (IS_ERR(chip)) + return PTR_ERR(chip); + + i2c_set_clientdata(client, chip); + + return 0; +} + +static int __devexit ad714x_i2c_remove(struct i2c_client *client) +{ + struct ad714x_chip *chip = i2c_get_clientdata(client); + + ad714x_remove(chip); + i2c_set_clientdata(client, NULL); + + return 0; +} + +static const struct i2c_device_id ad714x_id[] = { + { "ad7142_captouch", 0 }, + { "ad7147_captouch", 0 }, + { } +}; +MODULE_DEVICE_TABLE(i2c, ad714x_id); + +static struct i2c_driver ad714x_i2c_driver = { + .driver = { + .name = "ad714x_captouch", + }, + .probe = ad714x_i2c_probe, + .remove = __devexit_p(ad714x_i2c_remove), + .suspend = ad714x_i2c_suspend, + .resume = ad714x_i2c_resume, + .id_table = ad714x_id, +}; + +static __init int ad714x_i2c_init(void) +{ + return i2c_add_driver(&ad714x_i2c_driver); +} +module_init(ad714x_i2c_init); + +static __exit void ad714x_i2c_exit(void) +{ + i2c_del_driver(&ad714x_i2c_driver); +} +module_exit(ad714x_i2c_exit); + +MODULE_DESCRIPTION("Analog Devices AD714X Capacitance Touch Sensor I2C Bus Driver"); +MODULE_AUTHOR("Barry Song <21cnbao@gmail.com>"); +MODULE_LICENSE("GPL"); diff --git a/drivers/input/misc/ad714x-spi.c b/drivers/input/misc/ad714x-spi.c new file mode 100644 index 000000000000..7f8dedfd1bfe --- /dev/null +++ b/drivers/input/misc/ad714x-spi.c @@ -0,0 +1,103 @@ +/* + * AD714X CapTouch Programmable Controller driver (SPI bus) + * + * Copyright 2009 Analog Devices Inc. + * + * Licensed under the GPL-2 or later. + */ + +#include /* BUS_I2C */ +#include +#include +#include +#include "ad714x.h" + +#define AD714x_SPI_CMD_PREFIX 0xE000 /* bits 15:11 */ +#define AD714x_SPI_READ BIT(10) + +#ifdef CONFIG_PM +static int ad714x_spi_suspend(struct spi_device *spi, pm_message_t message) +{ + return ad714x_disable(spi_get_drvdata(spi)); +} + +static int ad714x_spi_resume(struct spi_device *spi) +{ + return ad714x_enable(spi_get_drvdata(spi)); +} +#else +# define ad714x_spi_suspend NULL +# define ad714x_spi_resume NULL +#endif + +static int ad714x_spi_read(struct device *dev, unsigned short reg, + unsigned short *data) +{ + struct spi_device *spi = to_spi_device(dev); + unsigned short tx = AD714x_SPI_CMD_PREFIX | AD714x_SPI_READ | reg; + + return spi_write_then_read(spi, (u8 *)&tx, 2, (u8 *)data, 2); +} + +static int ad714x_spi_write(struct device *dev, unsigned short reg, + unsigned short data) +{ + struct spi_device *spi = to_spi_device(dev); + unsigned short tx[2] = { + AD714x_SPI_CMD_PREFIX | reg, + data + }; + + return spi_write(spi, (u8 *)tx, 4); +} + +static int __devinit ad714x_spi_probe(struct spi_device *spi) +{ + struct ad714x_chip *chip; + + chip = ad714x_probe(&spi->dev, BUS_SPI, spi->irq, + ad714x_spi_read, ad714x_spi_write); + if (IS_ERR(chip)) + return PTR_ERR(chip); + + spi_set_drvdata(spi, chip); + + return 0; +} + +static int __devexit ad714x_spi_remove(struct spi_device *spi) +{ + struct ad714x_chip *chip = spi_get_drvdata(spi); + + ad714x_remove(chip); + spi_set_drvdata(spi, NULL); + + return 0; +} + +static struct spi_driver ad714x_spi_driver = { + .driver = { + .name = "ad714x_captouch", + .owner = THIS_MODULE, + }, + .probe = ad714x_spi_probe, + .remove = __devexit_p(ad714x_spi_remove), + .suspend = ad714x_spi_suspend, + .resume = ad714x_spi_resume, +}; + +static __init int ad714x_spi_init(void) +{ + return spi_register_driver(&ad714x_spi_driver); +} +module_init(ad714x_spi_init); + +static __exit void ad714x_spi_exit(void) +{ + spi_unregister_driver(&ad714x_spi_driver); +} +module_exit(ad714x_spi_exit); + +MODULE_DESCRIPTION("Analog Devices AD714X Capacitance Touch Sensor SPI Bus Driver"); +MODULE_AUTHOR("Barry Song <21cnbao@gmail.com>"); +MODULE_LICENSE("GPL"); diff --git a/drivers/input/misc/ad714x.c b/drivers/input/misc/ad714x.c new file mode 100644 index 000000000000..691b1d37331f --- /dev/null +++ b/drivers/input/misc/ad714x.c @@ -0,0 +1,1331 @@ +/* + * AD714X CapTouch Programmable Controller driver + * + * Copyright 2009 Analog Devices Inc. + * + * Licensed under the GPL-2 or later. + */ + +#include +#include +#include +#include +#include +#include +#include "ad714x.h" + +#define AD714X_PWR_CTRL 0x0 +#define AD714X_STG_CAL_EN_REG 0x1 +#define AD714X_AMB_COMP_CTRL0_REG 0x2 +#define AD714X_PARTID_REG 0x17 +#define AD7147_PARTID 0x1470 +#define AD7142_PARTID 0xE620 +#define AD714X_STAGECFG_REG 0x80 +#define AD714X_SYSCFG_REG 0x0 + +#define STG_LOW_INT_EN_REG 0x5 +#define STG_HIGH_INT_EN_REG 0x6 +#define STG_COM_INT_EN_REG 0x7 +#define STG_LOW_INT_STA_REG 0x8 +#define STG_HIGH_INT_STA_REG 0x9 +#define STG_COM_INT_STA_REG 0xA + +#define CDC_RESULT_S0 0xB +#define CDC_RESULT_S1 0xC +#define CDC_RESULT_S2 0xD +#define CDC_RESULT_S3 0xE +#define CDC_RESULT_S4 0xF +#define CDC_RESULT_S5 0x10 +#define CDC_RESULT_S6 0x11 +#define CDC_RESULT_S7 0x12 +#define CDC_RESULT_S8 0x13 +#define CDC_RESULT_S9 0x14 +#define CDC_RESULT_S10 0x15 +#define CDC_RESULT_S11 0x16 + +#define STAGE0_AMBIENT 0xF1 +#define STAGE1_AMBIENT 0x115 +#define STAGE2_AMBIENT 0x139 +#define STAGE3_AMBIENT 0x15D +#define STAGE4_AMBIENT 0x181 +#define STAGE5_AMBIENT 0x1A5 +#define STAGE6_AMBIENT 0x1C9 +#define STAGE7_AMBIENT 0x1ED +#define STAGE8_AMBIENT 0x211 +#define STAGE9_AMBIENT 0x234 +#define STAGE10_AMBIENT 0x259 +#define STAGE11_AMBIENT 0x27D + +#define PER_STAGE_REG_NUM 36 +#define STAGE_NUM 12 +#define STAGE_CFGREG_NUM 8 +#define SYS_CFGREG_NUM 8 + +/* + * driver information which will be used to maintain the software flow + */ +enum ad714x_device_state { IDLE, JITTER, ACTIVE, SPACE }; + +struct ad714x_slider_drv { + int highest_stage; + int abs_pos; + int flt_pos; + enum ad714x_device_state state; + struct input_dev *input; +}; + +struct ad714x_wheel_drv { + int abs_pos; + int flt_pos; + int pre_mean_value; + int pre_highest_stage; + int pre_mean_value_no_offset; + int mean_value; + int mean_value_no_offset; + int pos_offset; + int pos_ratio; + int highest_stage; + enum ad714x_device_state state; + struct input_dev *input; +}; + +struct ad714x_touchpad_drv { + int x_highest_stage; + int x_flt_pos; + int x_abs_pos; + int y_highest_stage; + int y_flt_pos; + int y_abs_pos; + int left_ep; + int left_ep_val; + int right_ep; + int right_ep_val; + int top_ep; + int top_ep_val; + int bottom_ep; + int bottom_ep_val; + enum ad714x_device_state state; + struct input_dev *input; +}; + +struct ad714x_button_drv { + enum ad714x_device_state state; + /* + * Unlike slider/wheel/touchpad, all buttons point to + * same input_dev instance + */ + struct input_dev *input; +}; + +struct ad714x_driver_data { + struct ad714x_slider_drv *slider; + struct ad714x_wheel_drv *wheel; + struct ad714x_touchpad_drv *touchpad; + struct ad714x_button_drv *button; +}; + +/* + * information to integrate all things which will be private data + * of spi/i2c device + */ +struct ad714x_chip { + unsigned short h_state; + unsigned short l_state; + unsigned short c_state; + unsigned short adc_reg[STAGE_NUM]; + unsigned short amb_reg[STAGE_NUM]; + unsigned short sensor_val[STAGE_NUM]; + + struct ad714x_platform_data *hw; + struct ad714x_driver_data *sw; + + int irq; + struct device *dev; + ad714x_read_t read; + ad714x_write_t write; + + struct mutex mutex; + + unsigned product; + unsigned version; +}; + +static void ad714x_use_com_int(struct ad714x_chip *ad714x, + int start_stage, int end_stage) +{ + unsigned short data; + unsigned short mask; + + mask = ((1 << (end_stage + 1)) - 1) - (1 << start_stage); + + ad714x->read(ad714x->dev, STG_COM_INT_EN_REG, &data); + data |= 1 << start_stage; + ad714x->write(ad714x->dev, STG_COM_INT_EN_REG, data); + + ad714x->read(ad714x->dev, STG_HIGH_INT_EN_REG, &data); + data &= ~mask; + ad714x->write(ad714x->dev, STG_HIGH_INT_EN_REG, data); +} + +static void ad714x_use_thr_int(struct ad714x_chip *ad714x, + int start_stage, int end_stage) +{ + unsigned short data; + unsigned short mask; + + mask = ((1 << (end_stage + 1)) - 1) - (1 << start_stage); + + ad714x->read(ad714x->dev, STG_COM_INT_EN_REG, &data); + data &= ~(1 << start_stage); + ad714x->write(ad714x->dev, STG_COM_INT_EN_REG, data); + + ad714x->read(ad714x->dev, STG_HIGH_INT_EN_REG, &data); + data |= mask; + ad714x->write(ad714x->dev, STG_HIGH_INT_EN_REG, data); +} + +static int ad714x_cal_highest_stage(struct ad714x_chip *ad714x, + int start_stage, int end_stage) +{ + int max_res = 0; + int max_idx = 0; + int i; + + for (i = start_stage; i <= end_stage; i++) { + if (ad714x->sensor_val[i] > max_res) { + max_res = ad714x->sensor_val[i]; + max_idx = i; + } + } + + return max_idx; +} + +static int ad714x_cal_abs_pos(struct ad714x_chip *ad714x, + int start_stage, int end_stage, + int highest_stage, int max_coord) +{ + int a_param, b_param; + + if (highest_stage == start_stage) { + a_param = ad714x->sensor_val[start_stage + 1]; + b_param = ad714x->sensor_val[start_stage] + + ad714x->sensor_val[start_stage + 1]; + } else if (highest_stage == end_stage) { + a_param = ad714x->sensor_val[end_stage] * + (end_stage - start_stage) + + ad714x->sensor_val[end_stage - 1] * + (end_stage - start_stage - 1); + b_param = ad714x->sensor_val[end_stage] + + ad714x->sensor_val[end_stage - 1]; + } else { + a_param = ad714x->sensor_val[highest_stage] * + (highest_stage - start_stage) + + ad714x->sensor_val[highest_stage - 1] * + (highest_stage - start_stage - 1) + + ad714x->sensor_val[highest_stage + 1] * + (highest_stage - start_stage + 1); + b_param = ad714x->sensor_val[highest_stage] + + ad714x->sensor_val[highest_stage - 1] + + ad714x->sensor_val[highest_stage + 1]; + } + + return (max_coord / (end_stage - start_stage)) * a_param / b_param; +} + +/* + * One button can connect to multi positive and negative of CDCs + * Multi-buttons can connect to same positive/negative of one CDC + */ +static void ad714x_button_state_machine(struct ad714x_chip *ad714x, int idx) +{ + struct ad714x_button_plat *hw = &ad714x->hw->button[idx]; + struct ad714x_button_drv *sw = &ad714x->sw->button[idx]; + + switch (sw->state) { + case IDLE: + if (((ad714x->h_state & hw->h_mask) == hw->h_mask) && + ((ad714x->l_state & hw->l_mask) == hw->l_mask)) { + dev_dbg(ad714x->dev, "button %d touched\n", idx); + input_report_key(sw->input, hw->keycode, 1); + input_sync(sw->input); + sw->state = ACTIVE; + } + break; + + case ACTIVE: + if (((ad714x->h_state & hw->h_mask) != hw->h_mask) || + ((ad714x->l_state & hw->l_mask) != hw->l_mask)) { + dev_dbg(ad714x->dev, "button %d released\n", idx); + input_report_key(sw->input, hw->keycode, 0); + input_sync(sw->input); + sw->state = IDLE; + } + break; + + default: + break; + } +} + +/* + * The response of a sensor is defined by the absolute number of codes + * between the current CDC value and the ambient value. + */ +static void ad714x_slider_cal_sensor_val(struct ad714x_chip *ad714x, int idx) +{ + struct ad714x_slider_plat *hw = &ad714x->hw->slider[idx]; + int i; + + for (i = hw->start_stage; i <= hw->end_stage; i++) { + ad714x->read(ad714x->dev, CDC_RESULT_S0 + i, + &ad714x->adc_reg[i]); + ad714x->read(ad714x->dev, + STAGE0_AMBIENT + i * PER_STAGE_REG_NUM, + &ad714x->amb_reg[i]); + + ad714x->sensor_val[i] = abs(ad714x->adc_reg[i] - + ad714x->amb_reg[i]); + } +} + +static void ad714x_slider_cal_highest_stage(struct ad714x_chip *ad714x, int idx) +{ + struct ad714x_slider_plat *hw = &ad714x->hw->slider[idx]; + struct ad714x_slider_drv *sw = &ad714x->sw->slider[idx]; + + sw->highest_stage = ad714x_cal_highest_stage(ad714x, hw->start_stage, + hw->end_stage); + + dev_dbg(ad714x->dev, "slider %d highest_stage:%d\n", idx, + sw->highest_stage); +} + +/* + * The formulae are very straight forward. It uses the sensor with the + * highest response and the 2 adjacent ones. + * When Sensor 0 has the highest response, only sensor 0 and sensor 1 + * are used in the calculations. Similarly when the last sensor has the + * highest response, only the last sensor and the second last sensors + * are used in the calculations. + * + * For i= idx_of_peak_Sensor-1 to i= idx_of_peak_Sensor+1 + * v += Sensor response(i)*i + * w += Sensor response(i) + * POS=(Number_of_Positions_Wanted/(Number_of_Sensors_Used-1)) *(v/w) + */ +static void ad714x_slider_cal_abs_pos(struct ad714x_chip *ad714x, int idx) +{ + struct ad714x_slider_plat *hw = &ad714x->hw->slider[idx]; + struct ad714x_slider_drv *sw = &ad714x->sw->slider[idx]; + + sw->abs_pos = ad714x_cal_abs_pos(ad714x, hw->start_stage, hw->end_stage, + sw->highest_stage, hw->max_coord); + + dev_dbg(ad714x->dev, "slider %d absolute position:%d\n", idx, + sw->abs_pos); +} + +/* + * To minimise the Impact of the noise on the algorithm, ADI developed a + * routine that filters the CDC results after they have been read by the + * host processor. + * The filter used is an Infinite Input Response(IIR) filter implemented + * in firmware and attenuates the noise on the CDC results after they've + * been read by the host processor. + * Filtered_CDC_result = (Filtered_CDC_result * (10 - Coefficient) + + * Latest_CDC_result * Coefficient)/10 + */ +static void ad714x_slider_cal_flt_pos(struct ad714x_chip *ad714x, int idx) +{ + struct ad714x_slider_drv *sw = &ad714x->sw->slider[idx]; + + sw->flt_pos = (sw->flt_pos * (10 - 4) + + sw->abs_pos * 4)/10; + + dev_dbg(ad714x->dev, "slider %d filter position:%d\n", idx, + sw->flt_pos); +} + +static void ad714x_slider_use_com_int(struct ad714x_chip *ad714x, int idx) +{ + struct ad714x_slider_plat *hw = &ad714x->hw->slider[idx]; + + ad714x_use_com_int(ad714x, hw->start_stage, hw->end_stage); +} + +static void ad714x_slider_use_thr_int(struct ad714x_chip *ad714x, int idx) +{ + struct ad714x_slider_plat *hw = &ad714x->hw->slider[idx]; + + ad714x_use_thr_int(ad714x, hw->start_stage, hw->end_stage); +} + +static void ad714x_slider_state_machine(struct ad714x_chip *ad714x, int idx) +{ + struct ad714x_slider_plat *hw = &ad714x->hw->slider[idx]; + struct ad714x_slider_drv *sw = &ad714x->sw->slider[idx]; + unsigned short h_state, c_state; + unsigned short mask; + + mask = ((1 << (hw->end_stage + 1)) - 1) - ((1 << hw->start_stage) - 1); + + h_state = ad714x->h_state & mask; + c_state = ad714x->c_state & mask; + + switch (sw->state) { + case IDLE: + if (h_state) { + sw->state = JITTER; + /* In End of Conversion interrupt mode, the AD714X + * continuously generates hardware interrupts. + */ + ad714x_slider_use_com_int(ad714x, idx); + dev_dbg(ad714x->dev, "slider %d touched\n", idx); + } + break; + + case JITTER: + if (c_state == mask) { + ad714x_slider_cal_sensor_val(ad714x, idx); + ad714x_slider_cal_highest_stage(ad714x, idx); + ad714x_slider_cal_abs_pos(ad714x, idx); + sw->flt_pos = sw->abs_pos; + sw->state = ACTIVE; + } + break; + + case ACTIVE: + if (c_state == mask) { + if (h_state) { + ad714x_slider_cal_sensor_val(ad714x, idx); + ad714x_slider_cal_highest_stage(ad714x, idx); + ad714x_slider_cal_abs_pos(ad714x, idx); + ad714x_slider_cal_flt_pos(ad714x, idx); + + input_report_abs(sw->input, ABS_X, sw->flt_pos); + input_report_key(sw->input, BTN_TOUCH, 1); + } else { + /* When the user lifts off the sensor, configure + * the AD714X back to threshold interrupt mode. + */ + ad714x_slider_use_thr_int(ad714x, idx); + sw->state = IDLE; + input_report_key(sw->input, BTN_TOUCH, 0); + dev_dbg(ad714x->dev, "slider %d released\n", + idx); + } + input_sync(sw->input); + } + break; + + default: + break; + } +} + +/* + * When the scroll wheel is activated, we compute the absolute position based + * on the sensor values. To calculate the position, we first determine the + * sensor that has the greatest response among the 8 sensors that constitutes + * the scrollwheel. Then we determined the 2 sensors on either sides of the + * sensor with the highest response and we apply weights to these sensors. + */ +static void ad714x_wheel_cal_highest_stage(struct ad714x_chip *ad714x, int idx) +{ + struct ad714x_wheel_plat *hw = &ad714x->hw->wheel[idx]; + struct ad714x_wheel_drv *sw = &ad714x->sw->wheel[idx]; + + sw->pre_highest_stage = sw->highest_stage; + sw->highest_stage = ad714x_cal_highest_stage(ad714x, hw->start_stage, + hw->end_stage); + + dev_dbg(ad714x->dev, "wheel %d highest_stage:%d\n", idx, + sw->highest_stage); +} + +static void ad714x_wheel_cal_sensor_val(struct ad714x_chip *ad714x, int idx) +{ + struct ad714x_wheel_plat *hw = &ad714x->hw->wheel[idx]; + int i; + + for (i = hw->start_stage; i <= hw->end_stage; i++) { + ad714x->read(ad714x->dev, CDC_RESULT_S0 + i, + &ad714x->adc_reg[i]); + ad714x->read(ad714x->dev, + STAGE0_AMBIENT + i * PER_STAGE_REG_NUM, + &ad714x->amb_reg[i]); + if (ad714x->adc_reg[i] > ad714x->amb_reg[i]) + ad714x->sensor_val[i] = ad714x->adc_reg[i] - + ad714x->amb_reg[i]; + else + ad714x->sensor_val[i] = 0; + } +} + +/* + * When the scroll wheel is activated, we compute the absolute position based + * on the sensor values. To calculate the position, we first determine the + * sensor that has the greatest response among the 8 sensors that constitutes + * the scrollwheel. Then we determined the 2 sensors on either sides of the + * sensor with the highest response and we apply weights to these sensors. The + * result of this computation gives us the mean value which defined by the + * following formula: + * For i= second_before_highest_stage to i= second_after_highest_stage + * v += Sensor response(i)*WEIGHT*(i+3) + * w += Sensor response(i) + * Mean_Value=v/w + * pos_on_scrollwheel = (Mean_Value - position_offset) / position_ratio + */ + +#define WEIGHT_FACTOR 30 +/* This constant prevents the "PositionOffset" from reaching a big value */ +#define OFFSET_POSITION_CLAMP 120 +static void ad714x_wheel_cal_abs_pos(struct ad714x_chip *ad714x, int idx) +{ + struct ad714x_wheel_plat *hw = &ad714x->hw->wheel[idx]; + struct ad714x_wheel_drv *sw = &ad714x->sw->wheel[idx]; + int stage_num = hw->end_stage - hw->start_stage + 1; + int second_before, first_before, highest, first_after, second_after; + int a_param, b_param; + + /* Calculate Mean value */ + + second_before = (sw->highest_stage + stage_num - 2) % stage_num; + first_before = (sw->highest_stage + stage_num - 1) % stage_num; + highest = sw->highest_stage; + first_after = (sw->highest_stage + stage_num + 1) % stage_num; + second_after = (sw->highest_stage + stage_num + 2) % stage_num; + + if (((sw->highest_stage - hw->start_stage) > 1) && + ((hw->end_stage - sw->highest_stage) > 1)) { + a_param = ad714x->sensor_val[second_before] * + (second_before - hw->start_stage + 3) + + ad714x->sensor_val[first_before] * + (second_before - hw->start_stage + 3) + + ad714x->sensor_val[highest] * + (second_before - hw->start_stage + 3) + + ad714x->sensor_val[first_after] * + (first_after - hw->start_stage + 3) + + ad714x->sensor_val[second_after] * + (second_after - hw->start_stage + 3); + } else { + a_param = ad714x->sensor_val[second_before] * + (second_before - hw->start_stage + 1) + + ad714x->sensor_val[first_before] * + (second_before - hw->start_stage + 2) + + ad714x->sensor_val[highest] * + (second_before - hw->start_stage + 3) + + ad714x->sensor_val[first_after] * + (first_after - hw->start_stage + 4) + + ad714x->sensor_val[second_after] * + (second_after - hw->start_stage + 5); + } + a_param *= WEIGHT_FACTOR; + + b_param = ad714x->sensor_val[second_before] + + ad714x->sensor_val[first_before] + + ad714x->sensor_val[highest] + + ad714x->sensor_val[first_after] + + ad714x->sensor_val[second_after]; + + sw->pre_mean_value = sw->mean_value; + sw->mean_value = a_param / b_param; + + /* Calculate the offset */ + + if ((sw->pre_highest_stage == hw->end_stage) && + (sw->highest_stage == hw->start_stage)) + sw->pos_offset = sw->mean_value; + else if ((sw->pre_highest_stage == hw->start_stage) && + (sw->highest_stage == hw->end_stage)) + sw->pos_offset = sw->pre_mean_value; + + if (sw->pos_offset > OFFSET_POSITION_CLAMP) + sw->pos_offset = OFFSET_POSITION_CLAMP; + + /* Calculate the mean value without the offset */ + + sw->pre_mean_value_no_offset = sw->mean_value_no_offset; + sw->mean_value_no_offset = sw->mean_value - sw->pos_offset; + if (sw->mean_value_no_offset < 0) + sw->mean_value_no_offset = 0; + + /* Calculate ratio to scale down to NUMBER_OF_WANTED_POSITIONS */ + + if ((sw->pre_highest_stage == hw->end_stage) && + (sw->highest_stage == hw->start_stage)) + sw->pos_ratio = (sw->pre_mean_value_no_offset * 100) / + hw->max_coord; + else if ((sw->pre_highest_stage == hw->start_stage) && + (sw->highest_stage == hw->end_stage)) + sw->pos_ratio = (sw->mean_value_no_offset * 100) / + hw->max_coord; + sw->abs_pos = (sw->mean_value_no_offset * 100) / sw->pos_ratio; + if (sw->abs_pos > hw->max_coord) + sw->abs_pos = hw->max_coord; +} + +static void ad714x_wheel_cal_flt_pos(struct ad714x_chip *ad714x, int idx) +{ + struct ad714x_wheel_plat *hw = &ad714x->hw->wheel[idx]; + struct ad714x_wheel_drv *sw = &ad714x->sw->wheel[idx]; + if (((sw->pre_highest_stage == hw->end_stage) && + (sw->highest_stage == hw->start_stage)) || + ((sw->pre_highest_stage == hw->start_stage) && + (sw->highest_stage == hw->end_stage))) + sw->flt_pos = sw->abs_pos; + else + sw->flt_pos = ((sw->flt_pos * 30) + (sw->abs_pos * 71)) / 100; + + if (sw->flt_pos > hw->max_coord) + sw->flt_pos = hw->max_coord; +} + +static void ad714x_wheel_use_com_int(struct ad714x_chip *ad714x, int idx) +{ + struct ad714x_wheel_plat *hw = &ad714x->hw->wheel[idx]; + + ad714x_use_com_int(ad714x, hw->start_stage, hw->end_stage); +} + +static void ad714x_wheel_use_thr_int(struct ad714x_chip *ad714x, int idx) +{ + struct ad714x_wheel_plat *hw = &ad714x->hw->wheel[idx]; + + ad714x_use_thr_int(ad714x, hw->start_stage, hw->end_stage); +} + +static void ad714x_wheel_state_machine(struct ad714x_chip *ad714x, int idx) +{ + struct ad714x_wheel_plat *hw = &ad714x->hw->wheel[idx]; + struct ad714x_wheel_drv *sw = &ad714x->sw->wheel[idx]; + unsigned short h_state, c_state; + unsigned short mask; + + mask = ((1 << (hw->end_stage + 1)) - 1) - ((1 << hw->start_stage) - 1); + + h_state = ad714x->h_state & mask; + c_state = ad714x->c_state & mask; + + switch (sw->state) { + case IDLE: + if (h_state) { + sw->state = JITTER; + /* In End of Conversion interrupt mode, the AD714X + * continuously generates hardware interrupts. + */ + ad714x_wheel_use_com_int(ad714x, idx); + dev_dbg(ad714x->dev, "wheel %d touched\n", idx); + } + break; + + case JITTER: + if (c_state == mask) { + ad714x_wheel_cal_sensor_val(ad714x, idx); + ad714x_wheel_cal_highest_stage(ad714x, idx); + ad714x_wheel_cal_abs_pos(ad714x, idx); + sw->flt_pos = sw->abs_pos; + sw->state = ACTIVE; + } + break; + + case ACTIVE: + if (c_state == mask) { + if (h_state) { + ad714x_wheel_cal_sensor_val(ad714x, idx); + ad714x_wheel_cal_highest_stage(ad714x, idx); + ad714x_wheel_cal_abs_pos(ad714x, idx); + ad714x_wheel_cal_flt_pos(ad714x, idx); + + input_report_abs(sw->input, ABS_WHEEL, + sw->abs_pos); + input_report_key(sw->input, BTN_TOUCH, 1); + } else { + /* When the user lifts off the sensor, configure + * the AD714X back to threshold interrupt mode. + */ + ad714x_wheel_use_thr_int(ad714x, idx); + sw->state = IDLE; + input_report_key(sw->input, BTN_TOUCH, 0); + + dev_dbg(ad714x->dev, "wheel %d released\n", + idx); + } + input_sync(sw->input); + } + break; + + default: + break; + } +} + +static void touchpad_cal_sensor_val(struct ad714x_chip *ad714x, int idx) +{ + struct ad714x_touchpad_plat *hw = &ad714x->hw->touchpad[idx]; + int i; + + for (i = hw->x_start_stage; i <= hw->x_end_stage; i++) { + ad714x->read(ad714x->dev, CDC_RESULT_S0 + i, + &ad714x->adc_reg[i]); + ad714x->read(ad714x->dev, + STAGE0_AMBIENT + i * PER_STAGE_REG_NUM, + &ad714x->amb_reg[i]); + if (ad714x->adc_reg[i] > ad714x->amb_reg[i]) + ad714x->sensor_val[i] = ad714x->adc_reg[i] - + ad714x->amb_reg[i]; + else + ad714x->sensor_val[i] = 0; + } +} + +static void touchpad_cal_highest_stage(struct ad714x_chip *ad714x, int idx) +{ + struct ad714x_touchpad_plat *hw = &ad714x->hw->touchpad[idx]; + struct ad714x_touchpad_drv *sw = &ad714x->sw->touchpad[idx]; + + sw->x_highest_stage = ad714x_cal_highest_stage(ad714x, + hw->x_start_stage, hw->x_end_stage); + sw->y_highest_stage = ad714x_cal_highest_stage(ad714x, + hw->y_start_stage, hw->y_end_stage); + + dev_dbg(ad714x->dev, + "touchpad %d x_highest_stage:%d, y_highest_stage:%d\n", + idx, sw->x_highest_stage, sw->y_highest_stage); +} + +/* + * If 2 fingers are touching the sensor then 2 peaks can be observed in the + * distribution. + * The arithmetic doesn't support to get absolute coordinates for multi-touch + * yet. + */ +static int touchpad_check_second_peak(struct ad714x_chip *ad714x, int idx) +{ + struct ad714x_touchpad_plat *hw = &ad714x->hw->touchpad[idx]; + struct ad714x_touchpad_drv *sw = &ad714x->sw->touchpad[idx]; + int i; + + for (i = hw->x_start_stage; i < sw->x_highest_stage; i++) { + if ((ad714x->sensor_val[i] - ad714x->sensor_val[i + 1]) + > (ad714x->sensor_val[i + 1] / 10)) + return 1; + } + + for (i = sw->x_highest_stage; i < hw->x_end_stage; i++) { + if ((ad714x->sensor_val[i + 1] - ad714x->sensor_val[i]) + > (ad714x->sensor_val[i] / 10)) + return 1; + } + + for (i = hw->y_start_stage; i < sw->y_highest_stage; i++) { + if ((ad714x->sensor_val[i] - ad714x->sensor_val[i + 1]) + > (ad714x->sensor_val[i + 1] / 10)) + return 1; + } + + for (i = sw->y_highest_stage; i < hw->y_end_stage; i++) { + if ((ad714x->sensor_val[i + 1] - ad714x->sensor_val[i]) + > (ad714x->sensor_val[i] / 10)) + return 1; + } + + return 0; +} + +/* + * If only one finger is used to activate the touch pad then only 1 peak will be + * registered in the distribution. This peak and the 2 adjacent sensors will be + * used in the calculation of the absolute position. This will prevent hand + * shadows to affect the absolute position calculation. + */ +static void touchpad_cal_abs_pos(struct ad714x_chip *ad714x, int idx) +{ + struct ad714x_touchpad_plat *hw = &ad714x->hw->touchpad[idx]; + struct ad714x_touchpad_drv *sw = &ad714x->sw->touchpad[idx]; + + sw->x_abs_pos = ad714x_cal_abs_pos(ad714x, hw->x_start_stage, + hw->x_end_stage, sw->x_highest_stage, hw->x_max_coord); + sw->y_abs_pos = ad714x_cal_abs_pos(ad714x, hw->y_start_stage, + hw->y_end_stage, sw->y_highest_stage, hw->y_max_coord); + + dev_dbg(ad714x->dev, "touchpad %d absolute position:(%d, %d)\n", idx, + sw->x_abs_pos, sw->y_abs_pos); +} + +static void touchpad_cal_flt_pos(struct ad714x_chip *ad714x, int idx) +{ + struct ad714x_touchpad_drv *sw = &ad714x->sw->touchpad[idx]; + + sw->x_flt_pos = (sw->x_flt_pos * (10 - 4) + + sw->x_abs_pos * 4)/10; + sw->y_flt_pos = (sw->y_flt_pos * (10 - 4) + + sw->y_abs_pos * 4)/10; + + dev_dbg(ad714x->dev, "touchpad %d filter position:(%d, %d)\n", + idx, sw->x_flt_pos, sw->y_flt_pos); +} + +/* + * To prevent distortion from showing in the absolute position, it is + * necessary to detect the end points. When endpoints are detected, the + * driver stops updating the status variables with absolute positions. + * End points are detected on the 4 edges of the touchpad sensor. The + * method to detect them is the same for all 4. + * To detect the end points, the firmware computes the difference in + * percent between the sensor on the edge and the adjacent one. The + * difference is calculated in percent in order to make the end point + * detection independent of the pressure. + */ + +#define LEFT_END_POINT_DETECTION_LEVEL 550 +#define RIGHT_END_POINT_DETECTION_LEVEL 750 +#define LEFT_RIGHT_END_POINT_DEAVTIVALION_LEVEL 850 +#define TOP_END_POINT_DETECTION_LEVEL 550 +#define BOTTOM_END_POINT_DETECTION_LEVEL 950 +#define TOP_BOTTOM_END_POINT_DEAVTIVALION_LEVEL 700 +static int touchpad_check_endpoint(struct ad714x_chip *ad714x, int idx) +{ + struct ad714x_touchpad_plat *hw = &ad714x->hw->touchpad[idx]; + struct ad714x_touchpad_drv *sw = &ad714x->sw->touchpad[idx]; + int percent_sensor_diff; + + /* left endpoint detect */ + percent_sensor_diff = (ad714x->sensor_val[hw->x_start_stage] - + ad714x->sensor_val[hw->x_start_stage + 1]) * 100 / + ad714x->sensor_val[hw->x_start_stage + 1]; + if (!sw->left_ep) { + if (percent_sensor_diff >= LEFT_END_POINT_DETECTION_LEVEL) { + sw->left_ep = 1; + sw->left_ep_val = + ad714x->sensor_val[hw->x_start_stage + 1]; + } + } else { + if ((percent_sensor_diff < LEFT_END_POINT_DETECTION_LEVEL) && + (ad714x->sensor_val[hw->x_start_stage + 1] > + LEFT_RIGHT_END_POINT_DEAVTIVALION_LEVEL + sw->left_ep_val)) + sw->left_ep = 0; + } + + /* right endpoint detect */ + percent_sensor_diff = (ad714x->sensor_val[hw->x_end_stage] - + ad714x->sensor_val[hw->x_end_stage - 1]) * 100 / + ad714x->sensor_val[hw->x_end_stage - 1]; + if (!sw->right_ep) { + if (percent_sensor_diff >= RIGHT_END_POINT_DETECTION_LEVEL) { + sw->right_ep = 1; + sw->right_ep_val = + ad714x->sensor_val[hw->x_end_stage - 1]; + } + } else { + if ((percent_sensor_diff < RIGHT_END_POINT_DETECTION_LEVEL) && + (ad714x->sensor_val[hw->x_end_stage - 1] > + LEFT_RIGHT_END_POINT_DEAVTIVALION_LEVEL + sw->right_ep_val)) + sw->right_ep = 0; + } + + /* top endpoint detect */ + percent_sensor_diff = (ad714x->sensor_val[hw->y_start_stage] - + ad714x->sensor_val[hw->y_start_stage + 1]) * 100 / + ad714x->sensor_val[hw->y_start_stage + 1]; + if (!sw->top_ep) { + if (percent_sensor_diff >= TOP_END_POINT_DETECTION_LEVEL) { + sw->top_ep = 1; + sw->top_ep_val = + ad714x->sensor_val[hw->y_start_stage + 1]; + } + } else { + if ((percent_sensor_diff < TOP_END_POINT_DETECTION_LEVEL) && + (ad714x->sensor_val[hw->y_start_stage + 1] > + TOP_BOTTOM_END_POINT_DEAVTIVALION_LEVEL + sw->top_ep_val)) + sw->top_ep = 0; + } + + /* bottom endpoint detect */ + percent_sensor_diff = (ad714x->sensor_val[hw->y_end_stage] - + ad714x->sensor_val[hw->y_end_stage - 1]) * 100 / + ad714x->sensor_val[hw->y_end_stage - 1]; + if (!sw->bottom_ep) { + if (percent_sensor_diff >= BOTTOM_END_POINT_DETECTION_LEVEL) { + sw->bottom_ep = 1; + sw->bottom_ep_val = + ad714x->sensor_val[hw->y_end_stage - 1]; + } + } else { + if ((percent_sensor_diff < BOTTOM_END_POINT_DETECTION_LEVEL) && + (ad714x->sensor_val[hw->y_end_stage - 1] > + TOP_BOTTOM_END_POINT_DEAVTIVALION_LEVEL + sw->bottom_ep_val)) + sw->bottom_ep = 0; + } + + return sw->left_ep || sw->right_ep || sw->top_ep || sw->bottom_ep; +} + +static void touchpad_use_com_int(struct ad714x_chip *ad714x, int idx) +{ + struct ad714x_touchpad_plat *hw = &ad714x->hw->touchpad[idx]; + + ad714x_use_com_int(ad714x, hw->x_start_stage, hw->x_end_stage); +} + +static void touchpad_use_thr_int(struct ad714x_chip *ad714x, int idx) +{ + struct ad714x_touchpad_plat *hw = &ad714x->hw->touchpad[idx]; + + ad714x_use_thr_int(ad714x, hw->x_start_stage, hw->x_end_stage); + ad714x_use_thr_int(ad714x, hw->y_start_stage, hw->y_end_stage); +} + +static void ad714x_touchpad_state_machine(struct ad714x_chip *ad714x, int idx) +{ + struct ad714x_touchpad_plat *hw = &ad714x->hw->touchpad[idx]; + struct ad714x_touchpad_drv *sw = &ad714x->sw->touchpad[idx]; + unsigned short h_state, c_state; + unsigned short mask; + + mask = (((1 << (hw->x_end_stage + 1)) - 1) - + ((1 << hw->x_start_stage) - 1)) + + (((1 << (hw->y_end_stage + 1)) - 1) - + ((1 << hw->y_start_stage) - 1)); + + h_state = ad714x->h_state & mask; + c_state = ad714x->c_state & mask; + + switch (sw->state) { + case IDLE: + if (h_state) { + sw->state = JITTER; + /* In End of Conversion interrupt mode, the AD714X + * continuously generates hardware interrupts. + */ + touchpad_use_com_int(ad714x, idx); + dev_dbg(ad714x->dev, "touchpad %d touched\n", idx); + } + break; + + case JITTER: + if (c_state == mask) { + touchpad_cal_sensor_val(ad714x, idx); + touchpad_cal_highest_stage(ad714x, idx); + if ((!touchpad_check_second_peak(ad714x, idx)) && + (!touchpad_check_endpoint(ad714x, idx))) { + dev_dbg(ad714x->dev, + "touchpad%d, 2 fingers or endpoint\n", + idx); + touchpad_cal_abs_pos(ad714x, idx); + sw->x_flt_pos = sw->x_abs_pos; + sw->y_flt_pos = sw->y_abs_pos; + sw->state = ACTIVE; + } + } + break; + + case ACTIVE: + if (c_state == mask) { + if (h_state) { + touchpad_cal_sensor_val(ad714x, idx); + touchpad_cal_highest_stage(ad714x, idx); + if ((!touchpad_check_second_peak(ad714x, idx)) + && (!touchpad_check_endpoint(ad714x, idx))) { + touchpad_cal_abs_pos(ad714x, idx); + touchpad_cal_flt_pos(ad714x, idx); + input_report_abs(sw->input, ABS_X, + sw->x_flt_pos); + input_report_abs(sw->input, ABS_Y, + sw->y_flt_pos); + input_report_key(sw->input, BTN_TOUCH, + 1); + } + } else { + /* When the user lifts off the sensor, configure + * the AD714X back to threshold interrupt mode. + */ + touchpad_use_thr_int(ad714x, idx); + sw->state = IDLE; + input_report_key(sw->input, BTN_TOUCH, 0); + dev_dbg(ad714x->dev, "touchpad %d released\n", + idx); + } + input_sync(sw->input); + } + break; + + default: + break; + } +} + +static int ad714x_hw_detect(struct ad714x_chip *ad714x) +{ + unsigned short data; + + ad714x->read(ad714x->dev, AD714X_PARTID_REG, &data); + switch (data & 0xFFF0) { + case AD7147_PARTID: + ad714x->product = 0x7147; + ad714x->version = data & 0xF; + dev_info(ad714x->dev, "found AD7147 captouch, rev:%d\n", + ad714x->version); + return 0; + + case AD7142_PARTID: + ad714x->product = 0x7142; + ad714x->version = data & 0xF; + dev_info(ad714x->dev, "found AD7142 captouch, rev:%d\n", + ad714x->version); + return 0; + + default: + dev_err(ad714x->dev, + "fail to detect AD714X captouch, read ID is %04x\n", + data); + return -ENODEV; + } +} + +static void ad714x_hw_init(struct ad714x_chip *ad714x) +{ + int i, j; + unsigned short reg_base; + unsigned short data; + + /* configuration CDC and interrupts */ + + for (i = 0; i < STAGE_NUM; i++) { + reg_base = AD714X_STAGECFG_REG + i * STAGE_CFGREG_NUM; + for (j = 0; j < STAGE_CFGREG_NUM; j++) + ad714x->write(ad714x->dev, reg_base + j, + ad714x->hw->stage_cfg_reg[i][j]); + } + + for (i = 0; i < SYS_CFGREG_NUM; i++) + ad714x->write(ad714x->dev, AD714X_SYSCFG_REG + i, + ad714x->hw->sys_cfg_reg[i]); + for (i = 0; i < SYS_CFGREG_NUM; i++) + ad714x->read(ad714x->dev, AD714X_SYSCFG_REG + i, + &data); + + ad714x->write(ad714x->dev, AD714X_STG_CAL_EN_REG, 0xFFF); + + /* clear all interrupts */ + ad714x->read(ad714x->dev, STG_LOW_INT_STA_REG, &data); + ad714x->read(ad714x->dev, STG_HIGH_INT_STA_REG, &data); + ad714x->read(ad714x->dev, STG_COM_INT_STA_REG, &data); +} + +static irqreturn_t ad714x_interrupt_thread(int irq, void *data) +{ + struct ad714x_chip *ad714x = data; + int i; + + mutex_lock(&ad714x->mutex); + + ad714x->read(ad714x->dev, STG_LOW_INT_STA_REG, &ad714x->l_state); + ad714x->read(ad714x->dev, STG_HIGH_INT_STA_REG, &ad714x->h_state); + ad714x->read(ad714x->dev, STG_COM_INT_STA_REG, &ad714x->c_state); + + for (i = 0; i < ad714x->hw->button_num; i++) + ad714x_button_state_machine(ad714x, i); + for (i = 0; i < ad714x->hw->slider_num; i++) + ad714x_slider_state_machine(ad714x, i); + for (i = 0; i < ad714x->hw->wheel_num; i++) + ad714x_wheel_state_machine(ad714x, i); + for (i = 0; i < ad714x->hw->touchpad_num; i++) + ad714x_touchpad_state_machine(ad714x, i); + + mutex_unlock(&ad714x->mutex); + + return IRQ_HANDLED; +} + +#define MAX_DEVICE_NUM 8 +struct ad714x_chip *ad714x_probe(struct device *dev, u16 bus_type, int irq, + ad714x_read_t read, ad714x_write_t write) +{ + int i, alloc_idx; + int error; + struct input_dev *input[MAX_DEVICE_NUM]; + + struct ad714x_platform_data *plat_data = dev->platform_data; + struct ad714x_chip *ad714x; + void *drv_mem; + + struct ad714x_button_drv *bt_drv; + struct ad714x_slider_drv *sd_drv; + struct ad714x_wheel_drv *wl_drv; + struct ad714x_touchpad_drv *tp_drv; + + + if (irq <= 0) { + dev_err(dev, "IRQ not configured!\n"); + error = -EINVAL; + goto err_out; + } + + if (dev->platform_data == NULL) { + dev_err(dev, "platform data for ad714x doesn't exist\n"); + error = -EINVAL; + goto err_out; + } + + ad714x = kzalloc(sizeof(*ad714x) + sizeof(*ad714x->sw) + + sizeof(*sd_drv) * plat_data->slider_num + + sizeof(*wl_drv) * plat_data->wheel_num + + sizeof(*tp_drv) * plat_data->touchpad_num + + sizeof(*bt_drv) * plat_data->button_num, GFP_KERNEL); + if (!ad714x) { + error = -ENOMEM; + goto err_out; + } + + ad714x->hw = plat_data; + + drv_mem = ad714x + 1; + ad714x->sw = drv_mem; + drv_mem += sizeof(*ad714x->sw); + ad714x->sw->slider = sd_drv = drv_mem; + drv_mem += sizeof(*sd_drv) * ad714x->hw->slider_num; + ad714x->sw->wheel = wl_drv = drv_mem; + drv_mem += sizeof(*wl_drv) * ad714x->hw->wheel_num; + ad714x->sw->touchpad = tp_drv = drv_mem; + drv_mem += sizeof(*tp_drv) * ad714x->hw->touchpad_num; + ad714x->sw->button = bt_drv = drv_mem; + drv_mem += sizeof(*bt_drv) * ad714x->hw->button_num; + + ad714x->read = read; + ad714x->write = write; + ad714x->irq = irq; + ad714x->dev = dev; + + error = ad714x_hw_detect(ad714x); + if (error) + goto err_free_mem; + + /* initilize and request sw/hw resources */ + + ad714x_hw_init(ad714x); + mutex_init(&ad714x->mutex); + + /* + * Allocate and register AD714X input device + */ + alloc_idx = 0; + + /* a slider uses one input_dev instance */ + if (ad714x->hw->slider_num > 0) { + struct ad714x_slider_plat *sd_plat = ad714x->hw->slider; + + for (i = 0; i < ad714x->hw->slider_num; i++) { + sd_drv[i].input = input[alloc_idx] = input_allocate_device(); + if (!input[alloc_idx]) { + error = -ENOMEM; + goto err_free_dev; + } + + __set_bit(EV_ABS, input[alloc_idx]->evbit); + __set_bit(EV_KEY, input[alloc_idx]->evbit); + __set_bit(ABS_X, input[alloc_idx]->absbit); + __set_bit(BTN_TOUCH, input[alloc_idx]->keybit); + input_set_abs_params(input[alloc_idx], + ABS_X, 0, sd_plat->max_coord, 0, 0); + + input[alloc_idx]->id.bustype = bus_type; + input[alloc_idx]->id.product = ad714x->product; + input[alloc_idx]->id.version = ad714x->version; + + error = input_register_device(input[alloc_idx]); + if (error) + goto err_free_dev; + + alloc_idx++; + } + } + + /* a wheel uses one input_dev instance */ + if (ad714x->hw->wheel_num > 0) { + struct ad714x_wheel_plat *wl_plat = ad714x->hw->wheel; + + for (i = 0; i < ad714x->hw->wheel_num; i++) { + wl_drv[i].input = input[alloc_idx] = input_allocate_device(); + if (!input[alloc_idx]) { + error = -ENOMEM; + goto err_free_dev; + } + + __set_bit(EV_KEY, input[alloc_idx]->evbit); + __set_bit(EV_ABS, input[alloc_idx]->evbit); + __set_bit(ABS_WHEEL, input[alloc_idx]->absbit); + __set_bit(BTN_TOUCH, input[alloc_idx]->keybit); + input_set_abs_params(input[alloc_idx], + ABS_WHEEL, 0, wl_plat->max_coord, 0, 0); + + input[alloc_idx]->id.bustype = bus_type; + input[alloc_idx]->id.product = ad714x->product; + input[alloc_idx]->id.version = ad714x->version; + + error = input_register_device(input[alloc_idx]); + if (error) + goto err_free_dev; + + alloc_idx++; + } + } + + /* a touchpad uses one input_dev instance */ + if (ad714x->hw->touchpad_num > 0) { + struct ad714x_touchpad_plat *tp_plat = ad714x->hw->touchpad; + + for (i = 0; i < ad714x->hw->touchpad_num; i++) { + tp_drv[i].input = input[alloc_idx] = input_allocate_device(); + if (!input[alloc_idx]) { + error = -ENOMEM; + goto err_free_dev; + } + + __set_bit(EV_ABS, input[alloc_idx]->evbit); + __set_bit(EV_KEY, input[alloc_idx]->evbit); + __set_bit(ABS_X, input[alloc_idx]->absbit); + __set_bit(ABS_Y, input[alloc_idx]->absbit); + __set_bit(BTN_TOUCH, input[alloc_idx]->keybit); + input_set_abs_params(input[alloc_idx], + ABS_X, 0, tp_plat->x_max_coord, 0, 0); + input_set_abs_params(input[alloc_idx], + ABS_Y, 0, tp_plat->y_max_coord, 0, 0); + + input[alloc_idx]->id.bustype = bus_type; + input[alloc_idx]->id.product = ad714x->product; + input[alloc_idx]->id.version = ad714x->version; + + error = input_register_device(input[alloc_idx]); + if (error) + goto err_free_dev; + + alloc_idx++; + } + } + + /* all buttons use one input node */ + if (ad714x->hw->button_num > 0) { + struct ad714x_button_plat *bt_plat = ad714x->hw->button; + + input[alloc_idx] = input_allocate_device(); + if (!input[alloc_idx]) { + error = -ENOMEM; + goto err_free_dev; + } + + __set_bit(EV_KEY, input[alloc_idx]->evbit); + for (i = 0; i < ad714x->hw->button_num; i++) { + bt_drv[i].input = input[alloc_idx]; + __set_bit(bt_plat[i].keycode, input[alloc_idx]->keybit); + } + + input[alloc_idx]->id.bustype = bus_type; + input[alloc_idx]->id.product = ad714x->product; + input[alloc_idx]->id.version = ad714x->version; + + error = input_register_device(input[alloc_idx]); + if (error) + goto err_free_dev; + + alloc_idx++; + } + + error = request_threaded_irq(ad714x->irq, NULL, ad714x_interrupt_thread, + IRQF_TRIGGER_FALLING, "ad714x_captouch", ad714x); + if (error) { + dev_err(dev, "can't allocate irq %d\n", ad714x->irq); + goto err_unreg_dev; + } + + return ad714x; + + err_free_dev: + dev_err(dev, "failed to setup AD714x input device %i\n", alloc_idx); + input_free_device(input[alloc_idx]); + err_unreg_dev: + while (--alloc_idx >= 0) + input_unregister_device(input[alloc_idx]); + err_free_mem: + kfree(ad714x); + err_out: + return ERR_PTR(error); +} +EXPORT_SYMBOL(ad714x_probe); + +void ad714x_remove(struct ad714x_chip *ad714x) +{ + struct ad714x_platform_data *hw = ad714x->hw; + struct ad714x_driver_data *sw = ad714x->sw; + int i; + + free_irq(ad714x->irq, ad714x); + + /* unregister and free all input devices */ + + for (i = 0; i < hw->slider_num; i++) + input_unregister_device(sw->slider[i].input); + + for (i = 0; i < hw->wheel_num; i++) + input_unregister_device(sw->wheel[i].input); + + for (i = 0; i < hw->touchpad_num; i++) + input_unregister_device(sw->touchpad[i].input); + + if (hw->button_num) + input_unregister_device(sw->button[0].input); + + kfree(ad714x); +} +EXPORT_SYMBOL(ad714x_remove); + +#ifdef CONFIG_PM +int ad714x_disable(struct ad714x_chip *ad714x) +{ + unsigned short data; + + dev_dbg(ad714x->dev, "%s enter\n", __func__); + + mutex_lock(&ad714x->mutex); + + data = ad714x->hw->sys_cfg_reg[AD714X_PWR_CTRL] | 0x3; + ad714x->write(ad714x->dev, AD714X_PWR_CTRL, data); + + mutex_unlock(&ad714x->mutex); + + return 0; +} +EXPORT_SYMBOL(ad714x_disable); + +int ad714x_enable(struct ad714x_chip *ad714x) +{ + unsigned short data; + + dev_dbg(ad714x->dev, "%s enter\n", __func__); + + mutex_lock(&ad714x->mutex); + + /* resume to non-shutdown mode */ + + ad714x->write(ad714x->dev, AD714X_PWR_CTRL, + ad714x->hw->sys_cfg_reg[AD714X_PWR_CTRL]); + + /* make sure the interrupt output line is not low level after resume, + * otherwise we will get no chance to enter falling-edge irq again + */ + + ad714x->read(ad714x->dev, STG_LOW_INT_STA_REG, &data); + ad714x->read(ad714x->dev, STG_HIGH_INT_STA_REG, &data); + ad714x->read(ad714x->dev, STG_COM_INT_STA_REG, &data); + + mutex_unlock(&ad714x->mutex); + + return 0; +} +EXPORT_SYMBOL(ad714x_enable); +#endif + +MODULE_DESCRIPTION("Analog Devices AD714X Capacitance Touch Sensor Driver"); +MODULE_AUTHOR("Barry Song <21cnbao@gmail.com>"); +MODULE_LICENSE("GPL"); diff --git a/drivers/input/misc/ad714x.h b/drivers/input/misc/ad714x.h new file mode 100644 index 000000000000..45c54fb13f07 --- /dev/null +++ b/drivers/input/misc/ad714x.h @@ -0,0 +1,26 @@ +/* + * AD714X CapTouch Programmable Controller driver (bus interfaces) + * + * Copyright 2009 Analog Devices Inc. + * + * Licensed under the GPL-2 or later. + */ + +#ifndef _AD714X_H_ +#define _AD714X_H_ + +#include + +struct device; +struct ad714x_chip; + +typedef int (*ad714x_read_t)(struct device *, unsigned short, unsigned short *); +typedef int (*ad714x_write_t)(struct device *, unsigned short, unsigned short); + +int ad714x_disable(struct ad714x_chip *ad714x); +int ad714x_enable(struct ad714x_chip *ad714x); +struct ad714x_chip *ad714x_probe(struct device *dev, u16 bus_type, int irq, + ad714x_read_t read, ad714x_write_t write); +void ad714x_remove(struct ad714x_chip *ad714x); + +#endif diff --git a/include/linux/input.h b/include/linux/input.h index 7ed2251b33f1..83524e4f3290 100644 --- a/include/linux/input.h +++ b/include/linux/input.h @@ -806,6 +806,7 @@ struct input_absinfo { #define BUS_HOST 0x19 #define BUS_GSC 0x1A #define BUS_ATARI 0x1B +#define BUS_SPI 0x1C /* * MT_TOOL types diff --git a/include/linux/input/ad714x.h b/include/linux/input/ad714x.h new file mode 100644 index 000000000000..0cbe5e81482e --- /dev/null +++ b/include/linux/input/ad714x.h @@ -0,0 +1,63 @@ +/* + * include/linux/input/ad714x.h + * + * AD714x is very flexible, it can be used as buttons, scrollwheel, + * slider, touchpad at the same time. That depends on the boards. + * The platform_data for the device's "struct device" holds this + * information. + * + * Copyright 2009 Analog Devices Inc. + * + * Licensed under the GPL-2 or later. + */ + +#ifndef __LINUX_INPUT_AD714X_H__ +#define __LINUX_INPUT_AD714X_H__ + +#define STAGE_NUM 12 +#define STAGE_CFGREG_NUM 8 +#define SYS_CFGREG_NUM 8 + +/* board information which need be initialized in arch/mach... */ +struct ad714x_slider_plat { + int start_stage; + int end_stage; + int max_coord; +}; + +struct ad714x_wheel_plat { + int start_stage; + int end_stage; + int max_coord; +}; + +struct ad714x_touchpad_plat { + int x_start_stage; + int x_end_stage; + int x_max_coord; + + int y_start_stage; + int y_end_stage; + int y_max_coord; +}; + +struct ad714x_button_plat { + int keycode; + unsigned short l_mask; + unsigned short h_mask; +}; + +struct ad714x_platform_data { + int slider_num; + int wheel_num; + int touchpad_num; + int button_num; + struct ad714x_slider_plat *slider; + struct ad714x_wheel_plat *wheel; + struct ad714x_touchpad_plat *touchpad; + struct ad714x_button_plat *button; + unsigned short stage_cfg_reg[STAGE_NUM][STAGE_CFGREG_NUM]; + unsigned short sys_cfg_reg[SYS_CFGREG_NUM]; +}; + +#endif -- cgit v1.2.3 From 752599667048898b6969e06e4637f906b04ec752 Mon Sep 17 00:00:00 2001 From: Todd Fischer Date: Mon, 5 Apr 2010 17:53:12 -0600 Subject: input: Touchscreen driver for TPS6507x Add touch screen input driver for TPS6507x family of multi-function chips. Uses the TPS6507x MFD driver. No interrupt support due to testing limitations of current hardware. Signed-off-by: Todd Fischer Signed-off-by: Samuel Ortiz --- drivers/input/touchscreen/Kconfig | 13 ++ drivers/input/touchscreen/Makefile | 1 + drivers/input/touchscreen/tps6507x-ts.c | 400 ++++++++++++++++++++++++++++++++ drivers/mfd/tps6507x.c | 3 + include/linux/input/tps6507x-ts.h | 24 ++ include/linux/mfd/tps6507x.h | 2 + 6 files changed, 443 insertions(+) create mode 100644 drivers/input/touchscreen/tps6507x-ts.c create mode 100644 include/linux/input/tps6507x-ts.h (limited to 'include/linux/input') diff --git a/drivers/input/touchscreen/Kconfig b/drivers/input/touchscreen/Kconfig index b9f58ca82fd1..6703c6b9800a 100644 --- a/drivers/input/touchscreen/Kconfig +++ b/drivers/input/touchscreen/Kconfig @@ -590,4 +590,17 @@ config TOUCHSCREEN_PCAP To compile this driver as a module, choose M here: the module will be called pcap_ts. + +config TOUCHSCREEN_TPS6507X + tristate "TPS6507x based touchscreens" + depends on I2C + help + Say Y here if you have a TPS6507x based touchscreen + controller. + + If unsure, say N. + + To compile this driver as a module, choose M here: the + module will be called tps6507x_ts. + endif diff --git a/drivers/input/touchscreen/Makefile b/drivers/input/touchscreen/Makefile index 8ad36eef90a2..497964a7a214 100644 --- a/drivers/input/touchscreen/Makefile +++ b/drivers/input/touchscreen/Makefile @@ -46,3 +46,4 @@ obj-$(CONFIG_TOUCHSCREEN_WM97XX_ATMEL) += atmel-wm97xx.o obj-$(CONFIG_TOUCHSCREEN_WM97XX_MAINSTONE) += mainstone-wm97xx.o obj-$(CONFIG_TOUCHSCREEN_WM97XX_ZYLONITE) += zylonite-wm97xx.o obj-$(CONFIG_TOUCHSCREEN_W90X900) += w90p910_ts.o +obj-$(CONFIG_TOUCHSCREEN_TPS6507X) += tps6507x-ts.o diff --git a/drivers/input/touchscreen/tps6507x-ts.c b/drivers/input/touchscreen/tps6507x-ts.c new file mode 100644 index 000000000000..5de80a1a730b --- /dev/null +++ b/drivers/input/touchscreen/tps6507x-ts.c @@ -0,0 +1,400 @@ +/* + * drivers/input/touchscreen/tps6507x_ts.c + * + * Touchscreen driver for the tps6507x chip. + * + * Copyright (c) 2009 RidgeRun (todd.fischer@ridgerun.com) + * + * Credits: + * + * Using code from tsc2007, MtekVision Co., Ltd. + * + * For licencing details see kernel-base/COPYING + * + * TPS65070, TPS65073, TPS650731, and TPS650732 support + * 10 bit touch screen interface. + */ + +#include +#include +#include +#include +#include +#include +#include +#include + +#define TSC_DEFAULT_POLL_PERIOD 30 /* ms */ +#define TPS_DEFAULT_MIN_PRESSURE 0x30 +#define MAX_10BIT ((1 << 10) - 1) + +#define TPS6507X_ADCONFIG_CONVERT_TS (TPS6507X_ADCONFIG_AD_ENABLE | \ + TPS6507X_ADCONFIG_START_CONVERSION | \ + TPS6507X_ADCONFIG_INPUT_REAL_TSC) +#define TPS6507X_ADCONFIG_POWER_DOWN_TS (TPS6507X_ADCONFIG_INPUT_REAL_TSC) + +struct ts_event { + u16 x; + u16 y; + u16 pressure; +}; + +struct tps6507x_ts { + struct input_dev *input_dev; + struct device *dev; + char phys[32]; + struct workqueue_struct *wq; + struct delayed_work work; + unsigned polling; /* polling is active */ + struct ts_event tc; + struct tps6507x_dev *mfd; + u16 model; + unsigned pendown; + int irq; + void (*clear_penirq)(void); + unsigned long poll_period; /* ms */ + u16 min_pressure; + int vref; /* non-zero to leave vref on */ +}; + +static int tps6507x_read_u8(struct tps6507x_ts *tsc, u8 reg, u8 *data) +{ + int err; + + err = tsc->mfd->read_dev(tsc->mfd, reg, 1, data); + + if (err) + return err; + + return 0; +} + +static int tps6507x_write_u8(struct tps6507x_ts *tsc, u8 reg, u8 data) +{ + return tsc->mfd->write_dev(tsc->mfd, reg, 1, &data); +} + +static s32 tps6507x_adc_conversion(struct tps6507x_ts *tsc, + u8 tsc_mode, u16 *value) +{ + s32 ret; + u8 adc_status; + u8 result; + + /* Route input signal to A/D converter */ + + ret = tps6507x_write_u8(tsc, TPS6507X_REG_TSCMODE, tsc_mode); + if (ret) { + dev_err(tsc->dev, "TSC mode read failed\n"); + goto err; + } + + /* Start A/D conversion */ + + ret = tps6507x_write_u8(tsc, TPS6507X_REG_ADCONFIG, + TPS6507X_ADCONFIG_CONVERT_TS); + if (ret) { + dev_err(tsc->dev, "ADC config write failed\n"); + return ret; + } + + do { + ret = tps6507x_read_u8(tsc, TPS6507X_REG_ADCONFIG, + &adc_status); + if (ret) { + dev_err(tsc->dev, "ADC config read failed\n"); + goto err; + } + } while (adc_status & TPS6507X_ADCONFIG_START_CONVERSION); + + ret = tps6507x_read_u8(tsc, TPS6507X_REG_ADRESULT_2, &result); + if (ret) { + dev_err(tsc->dev, "ADC result 2 read failed\n"); + goto err; + } + + *value = (result & TPS6507X_REG_ADRESULT_2_MASK) << 8; + + ret = tps6507x_read_u8(tsc, TPS6507X_REG_ADRESULT_1, &result); + if (ret) { + dev_err(tsc->dev, "ADC result 1 read failed\n"); + goto err; + } + + *value |= result; + + dev_dbg(tsc->dev, "TSC channel %d = 0x%X\n", tsc_mode, *value); + +err: + return ret; +} + +/* Need to call tps6507x_adc_standby() after using A/D converter for the + * touch screen interrupt to work properly. + */ + +static s32 tps6507x_adc_standby(struct tps6507x_ts *tsc) +{ + s32 ret; + s32 loops = 0; + u8 val; + + ret = tps6507x_write_u8(tsc, TPS6507X_REG_ADCONFIG, + TPS6507X_ADCONFIG_INPUT_TSC); + if (ret) + return ret; + + ret = tps6507x_write_u8(tsc, TPS6507X_REG_TSCMODE, + TPS6507X_TSCMODE_STANDBY); + if (ret) + return ret; + + ret = tps6507x_read_u8(tsc, TPS6507X_REG_INT, &val); + if (ret) + return ret; + + while (val & TPS6507X_REG_TSC_INT) { + mdelay(10); + ret = tps6507x_read_u8(tsc, TPS6507X_REG_INT, &val); + if (ret) + return ret; + loops++; + } + + return ret; +} + +static void tps6507x_ts_handler(struct work_struct *work) +{ + struct tps6507x_ts *tsc = container_of(work, + struct tps6507x_ts, work.work); + struct input_dev *input_dev = tsc->input_dev; + int pendown; + int schd; + int poll = 0; + s32 ret; + + ret = tps6507x_adc_conversion(tsc, TPS6507X_TSCMODE_PRESSURE, + &tsc->tc.pressure); + if (ret) + goto done; + + pendown = tsc->tc.pressure > tsc->min_pressure; + + if (unlikely(!pendown && tsc->pendown)) { + dev_dbg(tsc->dev, "UP\n"); + input_report_key(input_dev, BTN_TOUCH, 0); + input_report_abs(input_dev, ABS_PRESSURE, 0); + input_sync(input_dev); + tsc->pendown = 0; + } + + if (pendown) { + + if (!tsc->pendown) { + dev_dbg(tsc->dev, "DOWN\n"); + input_report_key(input_dev, BTN_TOUCH, 1); + } else + dev_dbg(tsc->dev, "still down\n"); + + ret = tps6507x_adc_conversion(tsc, TPS6507X_TSCMODE_X_POSITION, + &tsc->tc.x); + if (ret) + goto done; + + ret = tps6507x_adc_conversion(tsc, TPS6507X_TSCMODE_Y_POSITION, + &tsc->tc.y); + if (ret) + goto done; + + input_report_abs(input_dev, ABS_X, tsc->tc.x); + input_report_abs(input_dev, ABS_Y, tsc->tc.y); + input_report_abs(input_dev, ABS_PRESSURE, tsc->tc.pressure); + input_sync(input_dev); + tsc->pendown = 1; + poll = 1; + } + +done: + /* always poll if not using interrupts */ + poll = 1; + + if (poll) { + schd = queue_delayed_work(tsc->wq, &tsc->work, + tsc->poll_period * HZ / 1000); + if (schd) + tsc->polling = 1; + else { + tsc->polling = 0; + dev_err(tsc->dev, "re-schedule failed"); + } + } else + tsc->polling = 0; + + ret = tps6507x_adc_standby(tsc); +} + +static int tps6507x_ts_probe(struct platform_device *pdev) +{ + int error; + struct tps6507x_ts *tsc; + struct tps6507x_dev *tps6507x_dev = dev_get_drvdata(pdev->dev.parent); + struct touchscreen_init_data *init_data; + struct input_dev *input_dev; + struct tps6507x_board *tps_board; + int schd; + + /** + * tps_board points to pmic related constants + * coming from the board-evm file. + */ + + tps_board = (struct tps6507x_board *)tps6507x_dev->dev->platform_data; + + if (!tps_board) { + dev_err(tps6507x_dev->dev, + "Could not find tps6507x platform data\n"); + return -EIO; + } + + /** + * init_data points to array of regulator_init structures + * coming from the board-evm file. + */ + + init_data = tps_board->tps6507x_ts_init_data; + + tsc = kzalloc(sizeof(struct tps6507x_ts), GFP_KERNEL); + if (!tsc) { + dev_err(tps6507x_dev->dev, "failed to allocate driver data\n"); + error = -ENOMEM; + goto err0; + } + + tps6507x_dev->ts = tsc; + tsc->mfd = tps6507x_dev; + tsc->dev = tps6507x_dev->dev; + input_dev = input_allocate_device(); + if (!input_dev) { + dev_err(tsc->dev, "Failed to allocate input device.\n"); + error = -ENOMEM; + goto err1; + } + + input_dev->evbit[0] = BIT_MASK(EV_KEY) | BIT_MASK(EV_ABS); + input_dev->keybit[BIT_WORD(BTN_TOUCH)] = BIT_MASK(BTN_TOUCH); + + input_set_abs_params(input_dev, ABS_X, 0, MAX_10BIT, 0, 0); + input_set_abs_params(input_dev, ABS_Y, 0, MAX_10BIT, 0, 0); + input_set_abs_params(input_dev, ABS_PRESSURE, 0, MAX_10BIT, 0, 0); + + input_dev->name = "TPS6507x Touchscreen"; + input_dev->id.bustype = BUS_I2C; + input_dev->dev.parent = tsc->dev; + + snprintf(tsc->phys, sizeof(tsc->phys), + "%s/input0", dev_name(tsc->dev)); + input_dev->phys = tsc->phys; + + dev_dbg(tsc->dev, "device: %s\n", input_dev->phys); + + input_set_drvdata(input_dev, tsc); + + tsc->input_dev = input_dev; + + INIT_DELAYED_WORK(&tsc->work, tps6507x_ts_handler); + tsc->wq = create_workqueue("TPS6507x Touchscreen"); + + if (init_data) { + tsc->poll_period = init_data->poll_period; + tsc->vref = init_data->vref; + tsc->min_pressure = init_data->min_pressure; + input_dev->id.vendor = init_data->vendor; + input_dev->id.product = init_data->product; + input_dev->id.version = init_data->version; + } else { + tsc->poll_period = TSC_DEFAULT_POLL_PERIOD; + tsc->min_pressure = TPS_DEFAULT_MIN_PRESSURE; + } + + error = tps6507x_adc_standby(tsc); + if (error) + goto err2; + + error = input_register_device(input_dev); + if (error) + goto err2; + + schd = queue_delayed_work(tsc->wq, &tsc->work, + tsc->poll_period * HZ / 1000); + + if (schd) + tsc->polling = 1; + else { + tsc->polling = 0; + dev_err(tsc->dev, "schedule failed"); + goto err2; + } + + return 0; + +err2: + cancel_delayed_work(&tsc->work); + flush_workqueue(tsc->wq); + destroy_workqueue(tsc->wq); + tsc->wq = 0; + input_free_device(input_dev); +err1: + kfree(tsc); + tps6507x_dev->ts = NULL; +err0: + return error; +} + +static int __devexit tps6507x_ts_remove(struct platform_device *pdev) +{ + struct tps6507x_dev *tps6507x_dev = platform_get_drvdata(pdev); + struct tps6507x_ts *tsc = tps6507x_dev->ts; + struct input_dev *input_dev = tsc->input_dev; + + if (!tsc) + return 0; + + cancel_delayed_work(&tsc->work); + flush_workqueue(tsc->wq); + destroy_workqueue(tsc->wq); + tsc->wq = 0; + + input_free_device(input_dev); + + tps6507x_dev->ts = NULL; + kfree(tsc); + + return 0; +} + +static struct platform_driver tps6507x_ts_driver = { + .driver = { + .name = "tps6507x-ts", + .owner = THIS_MODULE, + }, + .probe = tps6507x_ts_probe, + .remove = __devexit_p(tps6507x_ts_remove), +}; + +static int __init tps6507x_ts_init(void) +{ + return platform_driver_register(&tps6507x_ts_driver); +} +module_init(tps6507x_ts_init); + +static void __exit tps6507x_ts_exit(void) +{ + platform_driver_unregister(&tps6507x_ts_driver); +} +module_exit(tps6507x_ts_exit); + +MODULE_AUTHOR("Todd Fischer "); +MODULE_DESCRIPTION("TPS6507x - TouchScreen driver"); +MODULE_LICENSE("GPL v2"); +MODULE_ALIAS("platform:tps6507x-tsc"); diff --git a/drivers/mfd/tps6507x.c b/drivers/mfd/tps6507x.c index c59f74570b3b..d859dffed39f 100644 --- a/drivers/mfd/tps6507x.c +++ b/drivers/mfd/tps6507x.c @@ -26,6 +26,9 @@ static struct mfd_cell tps6507x_devs[] = { { .name = "tps6507x-pmic", }, + { + .name = "tps6507x-ts", + }, }; diff --git a/include/linux/input/tps6507x-ts.h b/include/linux/input/tps6507x-ts.h new file mode 100644 index 000000000000..ab1440313924 --- /dev/null +++ b/include/linux/input/tps6507x-ts.h @@ -0,0 +1,24 @@ +/* linux/i2c/tps6507x-ts.h + * + * Functions to access TPS65070 touch screen chip. + * + * Copyright (c) 2009 RidgeRun (todd.fischer@ridgerun.com) + * + * + * For licencing details see kernel-base/COPYING + */ + +#ifndef __LINUX_I2C_TPS6507X_TS_H +#define __LINUX_I2C_TPS6507X_TS_H + +/* Board specific touch screen initial values */ +struct touchscreen_init_data { + int poll_period; /* ms */ + int vref; /* non-zero to leave vref on */ + __u16 min_pressure; /* min reading to be treated as a touch */ + __u16 vendor; + __u16 product; + __u16 version; +}; + +#endif /* __LINUX_I2C_TPS6507X_TS_H */ diff --git a/include/linux/mfd/tps6507x.h b/include/linux/mfd/tps6507x.h index 9543cb716428..c923e4864f55 100644 --- a/include/linux/mfd/tps6507x.h +++ b/include/linux/mfd/tps6507x.h @@ -142,6 +142,7 @@ struct tps6507x_board { struct regulator_init_data *tps6507x_pmic_init_data; + struct touchscreen_init_data *tps6507x_ts_init_data; }; /** @@ -162,6 +163,7 @@ struct tps6507x_dev { /* Client devices */ struct tps6507x_pmic *pmic; + struct tps6507x_ts *ts; }; #endif /* __LINUX_MFD_TPS6507X_H */ -- cgit v1.2.3 From fb76dd10b91146e9cefbb3cd4e6812c5a95ee43b Mon Sep 17 00:00:00 2001 From: Luotao Fu Date: Thu, 10 Jun 2010 12:05:23 -0700 Subject: Input: matrix_keypad - add support for clustered irq This one adds support of a combined irq source for the whole matrix keypad. This can be useful if all rows and columns of the keypad are e.g. connected to a GPIO expander, which only has one interrupt line for all events on every single GPIO. Signed-off-by: Luotao Fu Acked-by: Eric Miao Signed-off-by: Dmitry Torokhov --- drivers/input/keyboard/matrix_keypad.c | 108 ++++++++++++++++++++++++--------- include/linux/input/matrix_keypad.h | 6 ++ 2 files changed, 86 insertions(+), 28 deletions(-) (limited to 'include/linux/input') diff --git a/drivers/input/keyboard/matrix_keypad.c b/drivers/input/keyboard/matrix_keypad.c index b443e088fd3c..b02e4268e18f 100644 --- a/drivers/input/keyboard/matrix_keypad.c +++ b/drivers/input/keyboard/matrix_keypad.c @@ -37,6 +37,7 @@ struct matrix_keypad { spinlock_t lock; bool scan_pending; bool stopped; + bool gpio_all_disabled; }; /* @@ -87,8 +88,12 @@ static void enable_row_irqs(struct matrix_keypad *keypad) const struct matrix_keypad_platform_data *pdata = keypad->pdata; int i; - for (i = 0; i < pdata->num_row_gpios; i++) - enable_irq(gpio_to_irq(pdata->row_gpios[i])); + if (pdata->clustered_irq > 0) + enable_irq(pdata->clustered_irq); + else { + for (i = 0; i < pdata->num_row_gpios; i++) + enable_irq(gpio_to_irq(pdata->row_gpios[i])); + } } static void disable_row_irqs(struct matrix_keypad *keypad) @@ -96,8 +101,12 @@ static void disable_row_irqs(struct matrix_keypad *keypad) const struct matrix_keypad_platform_data *pdata = keypad->pdata; int i; - for (i = 0; i < pdata->num_row_gpios; i++) - disable_irq_nosync(gpio_to_irq(pdata->row_gpios[i])); + if (pdata->clustered_irq > 0) + disable_irq_nosync(pdata->clustered_irq); + else { + for (i = 0; i < pdata->num_row_gpios; i++) + disable_irq_nosync(gpio_to_irq(pdata->row_gpios[i])); + } } /* @@ -216,45 +225,69 @@ static void matrix_keypad_stop(struct input_dev *dev) } #ifdef CONFIG_PM -static int matrix_keypad_suspend(struct device *dev) +static void matrix_keypad_enable_wakeup(struct matrix_keypad *keypad) { - struct platform_device *pdev = to_platform_device(dev); - struct matrix_keypad *keypad = platform_get_drvdata(pdev); const struct matrix_keypad_platform_data *pdata = keypad->pdata; + unsigned int gpio; int i; - matrix_keypad_stop(keypad->input_dev); + if (pdata->clustered_irq > 0) { + if (enable_irq_wake(pdata->clustered_irq) == 0) + keypad->gpio_all_disabled = true; + } else { - if (device_may_wakeup(&pdev->dev)) { for (i = 0; i < pdata->num_row_gpios; i++) { if (!test_bit(i, keypad->disabled_gpios)) { - unsigned int gpio = pdata->row_gpios[i]; + gpio = pdata->row_gpios[i]; if (enable_irq_wake(gpio_to_irq(gpio)) == 0) __set_bit(i, keypad->disabled_gpios); } } } - - return 0; } -static int matrix_keypad_resume(struct device *dev) +static void matrix_keypad_disable_wakeup(struct matrix_keypad *keypad) { - struct platform_device *pdev = to_platform_device(dev); - struct matrix_keypad *keypad = platform_get_drvdata(pdev); const struct matrix_keypad_platform_data *pdata = keypad->pdata; + unsigned int gpio; int i; - if (device_may_wakeup(&pdev->dev)) { + if (pdata->clustered_irq > 0) { + if (keypad->gpio_all_disabled) { + disable_irq_wake(pdata->clustered_irq); + keypad->gpio_all_disabled = false; + } + } else { for (i = 0; i < pdata->num_row_gpios; i++) { if (test_and_clear_bit(i, keypad->disabled_gpios)) { - unsigned int gpio = pdata->row_gpios[i]; - + gpio = pdata->row_gpios[i]; disable_irq_wake(gpio_to_irq(gpio)); } } } +} + +static int matrix_keypad_suspend(struct device *dev) +{ + struct platform_device *pdev = to_platform_device(dev); + struct matrix_keypad *keypad = platform_get_drvdata(pdev); + + matrix_keypad_stop(keypad->input_dev); + + if (device_may_wakeup(&pdev->dev)) + matrix_keypad_enable_wakeup(keypad); + + return 0; +} + +static int matrix_keypad_resume(struct device *dev) +{ + struct platform_device *pdev = to_platform_device(dev); + struct matrix_keypad *keypad = platform_get_drvdata(pdev); + + if (device_may_wakeup(&pdev->dev)) + matrix_keypad_disable_wakeup(keypad); matrix_keypad_start(keypad->input_dev); @@ -296,17 +329,31 @@ static int __devinit init_matrix_gpio(struct platform_device *pdev, gpio_direction_input(pdata->row_gpios[i]); } - for (i = 0; i < pdata->num_row_gpios; i++) { - err = request_irq(gpio_to_irq(pdata->row_gpios[i]), + if (pdata->clustered_irq > 0) { + err = request_irq(pdata->clustered_irq, matrix_keypad_interrupt, - IRQF_DISABLED | - IRQF_TRIGGER_RISING | IRQF_TRIGGER_FALLING, + pdata->clustered_irq_flags, "matrix-keypad", keypad); if (err) { dev_err(&pdev->dev, - "Unable to acquire interrupt for GPIO line %i\n", - pdata->row_gpios[i]); - goto err_free_irqs; + "Unable to acquire clustered interrupt\n"); + goto err_free_rows; + } + } else { + for (i = 0; i < pdata->num_row_gpios; i++) { + err = request_irq(gpio_to_irq(pdata->row_gpios[i]), + matrix_keypad_interrupt, + IRQF_DISABLED | + IRQF_TRIGGER_RISING | + IRQF_TRIGGER_FALLING, + "matrix-keypad", keypad); + if (err) { + dev_err(&pdev->dev, + "Unable to acquire interrupt " + "for GPIO line %i\n", + pdata->row_gpios[i]); + goto err_free_irqs; + } } } @@ -418,11 +465,16 @@ static int __devexit matrix_keypad_remove(struct platform_device *pdev) device_init_wakeup(&pdev->dev, 0); - for (i = 0; i < pdata->num_row_gpios; i++) { - free_irq(gpio_to_irq(pdata->row_gpios[i]), keypad); - gpio_free(pdata->row_gpios[i]); + if (pdata->clustered_irq > 0) { + free_irq(pdata->clustered_irq, keypad); + } else { + for (i = 0; i < pdata->num_row_gpios; i++) + free_irq(gpio_to_irq(pdata->row_gpios[i]), keypad); } + for (i = 0; i < pdata->num_row_gpios; i++) + gpio_free(pdata->row_gpios[i]); + for (i = 0; i < pdata->num_col_gpios; i++) gpio_free(pdata->col_gpios[i]); diff --git a/include/linux/input/matrix_keypad.h b/include/linux/input/matrix_keypad.h index c964cd7f436a..80352ad6581a 100644 --- a/include/linux/input/matrix_keypad.h +++ b/include/linux/input/matrix_keypad.h @@ -41,6 +41,9 @@ struct matrix_keymap_data { * @col_scan_delay_us: delay, measured in microseconds, that is * needed before we can keypad after activating column gpio * @debounce_ms: debounce interval in milliseconds + * @clustered_irq: may be specified if interrupts of all row/column GPIOs + * are bundled to one single irq + * @clustered_irq_flags: flags that are needed for the clustered irq * @active_low: gpio polarity * @wakeup: controls whether the device should be set up as wakeup * source @@ -63,6 +66,9 @@ struct matrix_keypad_platform_data { /* key debounce interval in milli-second */ unsigned int debounce_ms; + unsigned int clustered_irq; + unsigned int clustered_irq_flags; + bool active_low; bool wakeup; bool no_autorepeat; -- cgit v1.2.3 From e27c729219ad24c8ac9a4b34cf192e56917565c5 Mon Sep 17 00:00:00 2001 From: Michael Hennerich Date: Fri, 25 Jun 2010 08:44:10 -0700 Subject: Input: add driver for ADXL345/346 Digital Accelerometers This is a driver for the ADXL345/346 Three-Axis Digital Accelerometers. Signed-off-by: Michael Hennerich Signed-off-by: Chris Verges Signed-off-by: Luotao Fu Signed-off-by: Barry Song Signed-off-by: Mike Frysinger Signed-off-by: Dmitry Torokhov --- drivers/input/misc/Kconfig | 37 ++ drivers/input/misc/Makefile | 3 + drivers/input/misc/adxl34x-i2c.c | 163 ++++++++ drivers/input/misc/adxl34x-spi.c | 145 +++++++ drivers/input/misc/adxl34x.c | 840 +++++++++++++++++++++++++++++++++++++++ drivers/input/misc/adxl34x.h | 30 ++ include/linux/input/adxl34x.h | 293 ++++++++++++++ 7 files changed, 1511 insertions(+) create mode 100644 drivers/input/misc/adxl34x-i2c.c create mode 100644 drivers/input/misc/adxl34x-spi.c create mode 100644 drivers/input/misc/adxl34x.c create mode 100644 drivers/input/misc/adxl34x.h create mode 100644 include/linux/input/adxl34x.h (limited to 'include/linux/input') diff --git a/drivers/input/misc/Kconfig b/drivers/input/misc/Kconfig index c44b9eafc556..ede6d52fe95c 100644 --- a/drivers/input/misc/Kconfig +++ b/drivers/input/misc/Kconfig @@ -390,4 +390,41 @@ config INPUT_PCAP To compile this driver as a module, choose M here: the module will be called pcap_keys. +config INPUT_ADXL34X + tristate "Analog Devices ADXL34x Three-Axis Digital Accelerometer" + default n + help + Say Y here if you have a Accelerometer interface using the + ADXL345/6 controller, and your board-specific initialization + code includes that in its table of devices. + + This driver can use either I2C or SPI communication to the + ADXL345/6 controller. Select the appropriate method for + your system. + + If unsure, say N (but it's safe to say "Y"). + + To compile this driver as a module, choose M here: the + module will be called adxl34x. + +config INPUT_ADXL34X_I2C + tristate "support I2C bus connection" + depends on INPUT_ADXL34X && I2C + default y + help + Say Y here if you have ADXL345/6 hooked to an I2C bus. + + To compile this driver as a module, choose M here: the + module will be called adxl34x-i2c. + +config INPUT_ADXL34X_SPI + tristate "support SPI bus connection" + depends on INPUT_ADXL34X && SPI + default y + help + Say Y here if you have ADXL345/6 hooked to a SPI bus. + + To compile this driver as a module, choose M here: the + module will be called adxl34x-spi. + endif diff --git a/drivers/input/misc/Makefile b/drivers/input/misc/Makefile index 71fe57d8023f..97b5dc32df19 100644 --- a/drivers/input/misc/Makefile +++ b/drivers/input/misc/Makefile @@ -8,6 +8,9 @@ obj-$(CONFIG_INPUT_88PM860X_ONKEY) += 88pm860x_onkey.o obj-$(CONFIG_INPUT_AD714X) += ad714x.o obj-$(CONFIG_INPUT_AD714X_I2C) += ad714x-i2c.o obj-$(CONFIG_INPUT_AD714X_SPI) += ad714x-spi.o +obj-$(CONFIG_INPUT_ADXL34X) += adxl34x.o +obj-$(CONFIG_INPUT_ADXL34X_I2C) += adxl34x-i2c.o +obj-$(CONFIG_INPUT_ADXL34X_SPI) += adxl34x-spi.o obj-$(CONFIG_INPUT_APANEL) += apanel.o obj-$(CONFIG_INPUT_ATI_REMOTE) += ati_remote.o obj-$(CONFIG_INPUT_ATI_REMOTE2) += ati_remote2.o diff --git a/drivers/input/misc/adxl34x-i2c.c b/drivers/input/misc/adxl34x-i2c.c new file mode 100644 index 000000000000..76194b58bd0b --- /dev/null +++ b/drivers/input/misc/adxl34x-i2c.c @@ -0,0 +1,163 @@ +/* + * ADLX345/346 Three-Axis Digital Accelerometers (I2C Interface) + * + * Enter bugs at http://blackfin.uclinux.org/ + * + * Copyright (C) 2009 Michael Hennerich, Analog Devices Inc. + * Licensed under the GPL-2 or later. + */ + +#include /* BUS_I2C */ +#include +#include +#include +#include "adxl34x.h" + +static int adxl34x_smbus_read(struct device *dev, unsigned char reg) +{ + struct i2c_client *client = to_i2c_client(dev); + + return i2c_smbus_read_byte_data(client, reg); +} + +static int adxl34x_smbus_write(struct device *dev, + unsigned char reg, unsigned char val) +{ + struct i2c_client *client = to_i2c_client(dev); + + return i2c_smbus_write_byte_data(client, reg, val); +} + +static int adxl34x_smbus_read_block(struct device *dev, + unsigned char reg, int count, + void *buf) +{ + struct i2c_client *client = to_i2c_client(dev); + + return i2c_smbus_read_i2c_block_data(client, reg, count, buf); +} + +static int adxl34x_i2c_read_block(struct device *dev, + unsigned char reg, int count, + void *buf) +{ + struct i2c_client *client = to_i2c_client(dev); + int ret; + + ret = i2c_master_send(client, ®, 1); + if (ret < 0) + return ret; + + ret = i2c_master_recv(client, buf, count); + if (ret < 0) + return ret; + + if (ret != count) + return -EIO; + + return 0; +} + +static const struct adxl34x_bus_ops adx134x_smbus_bops = { + .bustype = BUS_I2C, + .write = adxl34x_smbus_write, + .read = adxl34x_smbus_read, + .read_block = adxl34x_smbus_read_block, +}; + +static const struct adxl34x_bus_ops adx134x_i2c_bops = { + .bustype = BUS_I2C, + .write = adxl34x_smbus_write, + .read = adxl34x_smbus_read, + .read_block = adxl34x_i2c_read_block, +}; + +static int __devinit adxl34x_i2c_probe(struct i2c_client *client, + const struct i2c_device_id *id) +{ + struct adxl34x *ac; + int error; + + error = i2c_check_functionality(client->adapter, + I2C_FUNC_SMBUS_BYTE_DATA); + if (!error) { + dev_err(&client->dev, "SMBUS Byte Data not Supported\n"); + return -EIO; + } + + ac = adxl34x_probe(&client->dev, client->irq, false, + i2c_check_functionality(client->adapter, + I2C_FUNC_SMBUS_READ_I2C_BLOCK) ? + &adx134x_smbus_bops : &adx134x_i2c_bops); + if (IS_ERR(ac)) + return PTR_ERR(ac); + + i2c_set_clientdata(client, ac); + + return 0; +} + +static int __devexit adxl34x_i2c_remove(struct i2c_client *client) +{ + struct adxl34x *ac = i2c_get_clientdata(client); + + return adxl34x_remove(ac); +} + +#ifdef CONFIG_PM +static int adxl34x_suspend(struct i2c_client *client, pm_message_t message) +{ + struct adxl34x *ac = i2c_get_clientdata(client); + + adxl34x_disable(ac); + + return 0; +} + +static int adxl34x_resume(struct i2c_client *client) +{ + struct adxl34x *ac = i2c_get_clientdata(client); + + adxl34x_enable(ac); + + return 0; +} +#else +# define adxl34x_suspend NULL +# define adxl34x_resume NULL +#endif + +static const struct i2c_device_id adxl34x_id[] = { + { "adxl34x", 0 }, + { } +}; + +MODULE_DEVICE_TABLE(i2c, adxl34x_id); + +static struct i2c_driver adxl34x_driver = { + .driver = { + .name = "adxl34x", + .owner = THIS_MODULE, + }, + .probe = adxl34x_i2c_probe, + .remove = __devexit_p(adxl34x_i2c_remove), + .suspend = adxl34x_suspend, + .resume = adxl34x_resume, + .id_table = adxl34x_id, +}; + +static int __init adxl34x_i2c_init(void) +{ + return i2c_add_driver(&adxl34x_driver); +} +module_init(adxl34x_i2c_init); + +static void __exit adxl34x_i2c_exit(void) +{ + i2c_del_driver(&adxl34x_driver); +} +module_exit(adxl34x_i2c_exit); + +MODULE_AUTHOR("Michael Hennerich "); +MODULE_DESCRIPTION("ADXL345/346 Three-Axis Digital Accelerometer I2C Bus Driver"); +MODULE_LICENSE("GPL"); diff --git a/drivers/input/misc/adxl34x-spi.c b/drivers/input/misc/adxl34x-spi.c new file mode 100644 index 000000000000..7f992353ffdd --- /dev/null +++ b/drivers/input/misc/adxl34x-spi.c @@ -0,0 +1,145 @@ +/* + * ADLX345/346 Three-Axis Digital Accelerometers (SPI Interface) + * + * Enter bugs at http://blackfin.uclinux.org/ + * + * Copyright (C) 2009 Michael Hennerich, Analog Devices Inc. + * Licensed under the GPL-2 or later. + */ + +#include /* BUS_SPI */ +#include +#include +#include +#include "adxl34x.h" + +#define MAX_SPI_FREQ_HZ 5000000 +#define MAX_FREQ_NO_FIFODELAY 1500000 +#define ADXL34X_CMD_MULTB (1 << 6) +#define ADXL34X_CMD_READ (1 << 7) +#define ADXL34X_WRITECMD(reg) (reg & 0x3F) +#define ADXL34X_READCMD(reg) (ADXL34X_CMD_READ | (reg & 0x3F)) +#define ADXL34X_READMB_CMD(reg) (ADXL34X_CMD_READ | ADXL34X_CMD_MULTB \ + | (reg & 0x3F)) + +static int adxl34x_spi_read(struct device *dev, unsigned char reg) +{ + struct spi_device *spi = to_spi_device(dev); + unsigned char cmd; + + cmd = ADXL34X_READCMD(reg); + + return spi_w8r8(spi, cmd); +} + +static int adxl34x_spi_write(struct device *dev, + unsigned char reg, unsigned char val) +{ + struct spi_device *spi = to_spi_device(dev); + unsigned char buf[2]; + + buf[0] = ADXL34X_WRITECMD(reg); + buf[1] = val; + + return spi_write(spi, buf, sizeof(buf)); +} + +static int adxl34x_spi_read_block(struct device *dev, + unsigned char reg, int count, + void *buf) +{ + struct spi_device *spi = to_spi_device(dev); + ssize_t status; + + reg = ADXL34X_READMB_CMD(reg); + status = spi_write_then_read(spi, ®, 1, buf, count); + + return (status < 0) ? status : 0; +} + +static const struct adxl34x_bus_ops adx134x_spi_bops = { + .bustype = BUS_SPI, + .write = adxl34x_spi_write, + .read = adxl34x_spi_read, + .read_block = adxl34x_spi_read_block, +}; + +static int __devinit adxl34x_spi_probe(struct spi_device *spi) +{ + struct adxl34x *ac; + + /* don't exceed max specified SPI CLK frequency */ + if (spi->max_speed_hz > MAX_SPI_FREQ_HZ) { + dev_err(&spi->dev, "SPI CLK %d Hz too fast\n", spi->max_speed_hz); + return -EINVAL; + } + + ac = adxl34x_probe(&spi->dev, spi->irq, + spi->max_speed_hz > MAX_FREQ_NO_FIFODELAY, + &adx134x_spi_bops); + + if (IS_ERR(ac)) + return PTR_ERR(ac); + + spi_set_drvdata(spi, ac); + + return 0; +} + +static int __devexit adxl34x_spi_remove(struct spi_device *spi) +{ + struct adxl34x *ac = dev_get_drvdata(&spi->dev); + + return adxl34x_remove(ac); +} + +#ifdef CONFIG_PM +static int adxl34x_suspend(struct spi_device *spi, pm_message_t message) +{ + struct adxl34x *ac = dev_get_drvdata(&spi->dev); + + adxl34x_disable(ac); + + return 0; +} + +static int adxl34x_resume(struct spi_device *spi) +{ + struct adxl34x *ac = dev_get_drvdata(&spi->dev); + + adxl34x_enable(ac); + + return 0; +} +#else +# define adxl34x_suspend NULL +# define adxl34x_resume NULL +#endif + +static struct spi_driver adxl34x_driver = { + .driver = { + .name = "adxl34x", + .bus = &spi_bus_type, + .owner = THIS_MODULE, + }, + .probe = adxl34x_spi_probe, + .remove = __devexit_p(adxl34x_spi_remove), + .suspend = adxl34x_suspend, + .resume = adxl34x_resume, +}; + +static int __init adxl34x_spi_init(void) +{ + return spi_register_driver(&adxl34x_driver); +} +module_init(adxl34x_spi_init); + +static void __exit adxl34x_spi_exit(void) +{ + spi_unregister_driver(&adxl34x_driver); +} +module_exit(adxl34x_spi_exit); + +MODULE_AUTHOR("Michael Hennerich "); +MODULE_DESCRIPTION("ADXL345/346 Three-Axis Digital Accelerometer SPI Bus Driver"); +MODULE_LICENSE("GPL"); diff --git a/drivers/input/misc/adxl34x.c b/drivers/input/misc/adxl34x.c new file mode 100644 index 000000000000..07f9ef631540 --- /dev/null +++ b/drivers/input/misc/adxl34x.c @@ -0,0 +1,840 @@ +/* + * ADXL345/346 Three-Axis Digital Accelerometers + * + * Enter bugs at http://blackfin.uclinux.org/ + * + * Copyright (C) 2009 Michael Hennerich, Analog Devices Inc. + * Licensed under the GPL-2 or later. + */ + +#include +#include +#include +#include +#include +#include +#include +#include +#include + +#include "adxl34x.h" + +/* ADXL345/6 Register Map */ +#define DEVID 0x00 /* R Device ID */ +#define THRESH_TAP 0x1D /* R/W Tap threshold */ +#define OFSX 0x1E /* R/W X-axis offset */ +#define OFSY 0x1F /* R/W Y-axis offset */ +#define OFSZ 0x20 /* R/W Z-axis offset */ +#define DUR 0x21 /* R/W Tap duration */ +#define LATENT 0x22 /* R/W Tap latency */ +#define WINDOW 0x23 /* R/W Tap window */ +#define THRESH_ACT 0x24 /* R/W Activity threshold */ +#define THRESH_INACT 0x25 /* R/W Inactivity threshold */ +#define TIME_INACT 0x26 /* R/W Inactivity time */ +#define ACT_INACT_CTL 0x27 /* R/W Axis enable control for activity and */ + /* inactivity detection */ +#define THRESH_FF 0x28 /* R/W Free-fall threshold */ +#define TIME_FF 0x29 /* R/W Free-fall time */ +#define TAP_AXES 0x2A /* R/W Axis control for tap/double tap */ +#define ACT_TAP_STATUS 0x2B /* R Source of tap/double tap */ +#define BW_RATE 0x2C /* R/W Data rate and power mode control */ +#define POWER_CTL 0x2D /* R/W Power saving features control */ +#define INT_ENABLE 0x2E /* R/W Interrupt enable control */ +#define INT_MAP 0x2F /* R/W Interrupt mapping control */ +#define INT_SOURCE 0x30 /* R Source of interrupts */ +#define DATA_FORMAT 0x31 /* R/W Data format control */ +#define DATAX0 0x32 /* R X-Axis Data 0 */ +#define DATAX1 0x33 /* R X-Axis Data 1 */ +#define DATAY0 0x34 /* R Y-Axis Data 0 */ +#define DATAY1 0x35 /* R Y-Axis Data 1 */ +#define DATAZ0 0x36 /* R Z-Axis Data 0 */ +#define DATAZ1 0x37 /* R Z-Axis Data 1 */ +#define FIFO_CTL 0x38 /* R/W FIFO control */ +#define FIFO_STATUS 0x39 /* R FIFO status */ +#define TAP_SIGN 0x3A /* R Sign and source for tap/double tap */ +/* Orientation ADXL346 only */ +#define ORIENT_CONF 0x3B /* R/W Orientation configuration */ +#define ORIENT 0x3C /* R Orientation status */ + +/* DEVIDs */ +#define ID_ADXL345 0xE5 +#define ID_ADXL346 0xE6 + +/* INT_ENABLE/INT_MAP/INT_SOURCE Bits */ +#define DATA_READY (1 << 7) +#define SINGLE_TAP (1 << 6) +#define DOUBLE_TAP (1 << 5) +#define ACTIVITY (1 << 4) +#define INACTIVITY (1 << 3) +#define FREE_FALL (1 << 2) +#define WATERMARK (1 << 1) +#define OVERRUN (1 << 0) + +/* ACT_INACT_CONTROL Bits */ +#define ACT_ACDC (1 << 7) +#define ACT_X_EN (1 << 6) +#define ACT_Y_EN (1 << 5) +#define ACT_Z_EN (1 << 4) +#define INACT_ACDC (1 << 3) +#define INACT_X_EN (1 << 2) +#define INACT_Y_EN (1 << 1) +#define INACT_Z_EN (1 << 0) + +/* TAP_AXES Bits */ +#define SUPPRESS (1 << 3) +#define TAP_X_EN (1 << 2) +#define TAP_Y_EN (1 << 1) +#define TAP_Z_EN (1 << 0) + +/* ACT_TAP_STATUS Bits */ +#define ACT_X_SRC (1 << 6) +#define ACT_Y_SRC (1 << 5) +#define ACT_Z_SRC (1 << 4) +#define ASLEEP (1 << 3) +#define TAP_X_SRC (1 << 2) +#define TAP_Y_SRC (1 << 1) +#define TAP_Z_SRC (1 << 0) + +/* BW_RATE Bits */ +#define LOW_POWER (1 << 4) +#define RATE(x) ((x) & 0xF) + +/* POWER_CTL Bits */ +#define PCTL_LINK (1 << 5) +#define PCTL_AUTO_SLEEP (1 << 4) +#define PCTL_MEASURE (1 << 3) +#define PCTL_SLEEP (1 << 2) +#define PCTL_WAKEUP(x) ((x) & 0x3) + +/* DATA_FORMAT Bits */ +#define SELF_TEST (1 << 7) +#define SPI (1 << 6) +#define INT_INVERT (1 << 5) +#define FULL_RES (1 << 3) +#define JUSTIFY (1 << 2) +#define RANGE(x) ((x) & 0x3) +#define RANGE_PM_2g 0 +#define RANGE_PM_4g 1 +#define RANGE_PM_8g 2 +#define RANGE_PM_16g 3 + +/* + * Maximum value our axis may get in full res mode for the input device + * (signed 13 bits) + */ +#define ADXL_FULLRES_MAX_VAL 4096 + +/* + * Maximum value our axis may get in fixed res mode for the input device + * (signed 10 bits) + */ +#define ADXL_FIXEDRES_MAX_VAL 512 + +/* FIFO_CTL Bits */ +#define FIFO_MODE(x) (((x) & 0x3) << 6) +#define FIFO_BYPASS 0 +#define FIFO_FIFO 1 +#define FIFO_STREAM 2 +#define FIFO_TRIGGER 3 +#define TRIGGER (1 << 5) +#define SAMPLES(x) ((x) & 0x1F) + +/* FIFO_STATUS Bits */ +#define FIFO_TRIG (1 << 7) +#define ENTRIES(x) ((x) & 0x3F) + +/* TAP_SIGN Bits ADXL346 only */ +#define XSIGN (1 << 6) +#define YSIGN (1 << 5) +#define ZSIGN (1 << 4) +#define XTAP (1 << 3) +#define YTAP (1 << 2) +#define ZTAP (1 << 1) + +/* ORIENT_CONF ADXL346 only */ +#define ORIENT_DEADZONE(x) (((x) & 0x7) << 4) +#define ORIENT_DIVISOR(x) ((x) & 0x7) + +/* ORIENT ADXL346 only */ +#define ADXL346_2D_VALID (1 << 6) +#define ADXL346_2D_ORIENT(x) (((x) & 0x3) >> 4) +#define ADXL346_3D_VALID (1 << 3) +#define ADXL346_3D_ORIENT(x) ((x) & 0x7) +#define ADXL346_2D_PORTRAIT_POS 0 /* +X */ +#define ADXL346_2D_PORTRAIT_NEG 1 /* -X */ +#define ADXL346_2D_LANDSCAPE_POS 2 /* +Y */ +#define ADXL346_2D_LANDSCAPE_NEG 3 /* -Y */ + +#define ADXL346_3D_FRONT 3 /* +X */ +#define ADXL346_3D_BACK 4 /* -X */ +#define ADXL346_3D_RIGHT 2 /* +Y */ +#define ADXL346_3D_LEFT 5 /* -Y */ +#define ADXL346_3D_TOP 1 /* +Z */ +#define ADXL346_3D_BOTTOM 6 /* -Z */ + +#undef ADXL_DEBUG + +#define ADXL_X_AXIS 0 +#define ADXL_Y_AXIS 1 +#define ADXL_Z_AXIS 2 + +#define AC_READ(ac, reg) ((ac)->bops->read((ac)->dev, reg)) +#define AC_WRITE(ac, reg, val) ((ac)->bops->write((ac)->dev, reg, val)) + +struct axis_triple { + int x; + int y; + int z; +}; + +struct adxl34x { + struct device *dev; + struct input_dev *input; + struct mutex mutex; /* reentrant protection for struct */ + struct adxl34x_platform_data pdata; + struct axis_triple swcal; + struct axis_triple hwcal; + struct axis_triple saved; + char phys[32]; + bool disabled; /* P: mutex */ + bool opened; /* P: mutex */ + bool fifo_delay; + int irq; + unsigned model; + unsigned int_mask; + + const struct adxl34x_bus_ops *bops; +}; + +static const struct adxl34x_platform_data adxl34x_default_init = { + .tap_threshold = 35, + .tap_duration = 3, + .tap_latency = 20, + .tap_window = 20, + .tap_axis_control = ADXL_TAP_X_EN | ADXL_TAP_Y_EN | ADXL_TAP_Z_EN, + .act_axis_control = 0xFF, + .activity_threshold = 6, + .inactivity_threshold = 4, + .inactivity_time = 3, + .free_fall_threshold = 8, + .free_fall_time = 0x20, + .data_rate = 8, + .data_range = ADXL_FULL_RES, + + .ev_type = EV_ABS, + .ev_code_x = ABS_X, /* EV_REL */ + .ev_code_y = ABS_Y, /* EV_REL */ + .ev_code_z = ABS_Z, /* EV_REL */ + + .ev_code_tap = {BTN_TOUCH, BTN_TOUCH, BTN_TOUCH}, /* EV_KEY {x,y,z} */ + .power_mode = ADXL_AUTO_SLEEP | ADXL_LINK, + .fifo_mode = FIFO_STREAM, + .watermark = 0, +}; + +static void adxl34x_get_triple(struct adxl34x *ac, struct axis_triple *axis) +{ + short buf[3]; + + ac->bops->read_block(ac->dev, DATAX0, DATAZ1 - DATAX0 + 1, buf); + + mutex_lock(&ac->mutex); + ac->saved.x = (s16) le16_to_cpu(buf[0]); + axis->x = ac->saved.x; + + ac->saved.y = (s16) le16_to_cpu(buf[1]); + axis->y = ac->saved.y; + + ac->saved.z = (s16) le16_to_cpu(buf[2]); + axis->z = ac->saved.z; + mutex_unlock(&ac->mutex); +} + +static void adxl34x_service_ev_fifo(struct adxl34x *ac) +{ + struct adxl34x_platform_data *pdata = &ac->pdata; + struct axis_triple axis; + + adxl34x_get_triple(ac, &axis); + + input_event(ac->input, pdata->ev_type, pdata->ev_code_x, + axis.x - ac->swcal.x); + input_event(ac->input, pdata->ev_type, pdata->ev_code_y, + axis.y - ac->swcal.y); + input_event(ac->input, pdata->ev_type, pdata->ev_code_z, + axis.z - ac->swcal.z); +} + +static void adxl34x_report_key_single(struct input_dev *input, int key) +{ + input_report_key(input, key, true); + input_sync(input); + input_report_key(input, key, false); +} + +static void adxl34x_send_key_events(struct adxl34x *ac, + struct adxl34x_platform_data *pdata, int status, int press) +{ + int i; + + for (i = ADXL_X_AXIS; i <= ADXL_Z_AXIS; i++) { + if (status & (1 << (ADXL_Z_AXIS - i))) + input_report_key(ac->input, + pdata->ev_code_tap[i], press); + } +} + +static void adxl34x_do_tap(struct adxl34x *ac, + struct adxl34x_platform_data *pdata, int status) +{ + adxl34x_send_key_events(ac, pdata, status, true); + input_sync(ac->input); + adxl34x_send_key_events(ac, pdata, status, false); +} + +static irqreturn_t adxl34x_irq(int irq, void *handle) +{ + struct adxl34x *ac = handle; + struct adxl34x_platform_data *pdata = &ac->pdata; + int int_stat, tap_stat, samples; + + /* + * ACT_TAP_STATUS should be read before clearing the interrupt + * Avoid reading ACT_TAP_STATUS in case TAP detection is disabled + */ + + if (pdata->tap_axis_control & (TAP_X_EN | TAP_Y_EN | TAP_Z_EN)) + tap_stat = AC_READ(ac, ACT_TAP_STATUS); + else + tap_stat = 0; + + int_stat = AC_READ(ac, INT_SOURCE); + + if (int_stat & FREE_FALL) + adxl34x_report_key_single(ac->input, pdata->ev_code_ff); + + if (int_stat & OVERRUN) + dev_dbg(ac->dev, "OVERRUN\n"); + + if (int_stat & (SINGLE_TAP | DOUBLE_TAP)) { + adxl34x_do_tap(ac, pdata, tap_stat); + + if (int_stat & DOUBLE_TAP) + adxl34x_do_tap(ac, pdata, tap_stat); + } + + if (pdata->ev_code_act_inactivity) { + if (int_stat & ACTIVITY) + input_report_key(ac->input, + pdata->ev_code_act_inactivity, 1); + if (int_stat & INACTIVITY) + input_report_key(ac->input, + pdata->ev_code_act_inactivity, 0); + } + + if (int_stat & (DATA_READY | WATERMARK)) { + + if (pdata->fifo_mode) + samples = ENTRIES(AC_READ(ac, FIFO_STATUS)) + 1; + else + samples = 1; + + for (; samples > 0; samples--) { + adxl34x_service_ev_fifo(ac); + /* + * To ensure that the FIFO has + * completely popped, there must be at least 5 us between + * the end of reading the data registers, signified by the + * transition to register 0x38 from 0x37 or the CS pin + * going high, and the start of new reads of the FIFO or + * reading the FIFO_STATUS register. For SPI operation at + * 1.5 MHz or lower, the register addressing portion of the + * transmission is sufficient delay to ensure the FIFO has + * completely popped. It is necessary for SPI operation + * greater than 1.5 MHz to de-assert the CS pin to ensure a + * total of 5 us, which is at most 3.4 us at 5 MHz + * operation. + */ + if (ac->fifo_delay && (samples > 1)) + udelay(3); + } + } + + input_sync(ac->input); + + return IRQ_HANDLED; +} + +static void __adxl34x_disable(struct adxl34x *ac) +{ + if (!ac->disabled && ac->opened) { + /* + * A '0' places the ADXL34x into standby mode + * with minimum power consumption. + */ + AC_WRITE(ac, POWER_CTL, 0); + + ac->disabled = true; + } +} + +static void __adxl34x_enable(struct adxl34x *ac) +{ + if (ac->disabled && ac->opened) { + AC_WRITE(ac, POWER_CTL, ac->pdata.power_mode | PCTL_MEASURE); + ac->disabled = false; + } +} + +void adxl34x_disable(struct adxl34x *ac) +{ + mutex_lock(&ac->mutex); + __adxl34x_disable(ac); + mutex_unlock(&ac->mutex); +} +EXPORT_SYMBOL_GPL(adxl34x_disable); + +void adxl34x_enable(struct adxl34x *ac) +{ + mutex_lock(&ac->mutex); + __adxl34x_enable(ac); + mutex_unlock(&ac->mutex); +} + +EXPORT_SYMBOL_GPL(adxl34x_enable); + +static ssize_t adxl34x_disable_show(struct device *dev, + struct device_attribute *attr, char *buf) +{ + struct adxl34x *ac = dev_get_drvdata(dev); + + return sprintf(buf, "%u\n", ac->disabled); +} + +static ssize_t adxl34x_disable_store(struct device *dev, + struct device_attribute *attr, + const char *buf, size_t count) +{ + struct adxl34x *ac = dev_get_drvdata(dev); + unsigned long val; + int error; + + error = strict_strtoul(buf, 10, &val); + if (error) + return error; + + if (val) + adxl34x_disable(ac); + else + adxl34x_enable(ac); + + return count; +} + +static DEVICE_ATTR(disable, 0664, adxl34x_disable_show, adxl34x_disable_store); + +static ssize_t adxl34x_calibrate_show(struct device *dev, + struct device_attribute *attr, char *buf) +{ + struct adxl34x *ac = dev_get_drvdata(dev); + ssize_t count; + + mutex_lock(&ac->mutex); + count = sprintf(buf, "%d,%d,%d\n", + ac->hwcal.x * 4 + ac->swcal.x, + ac->hwcal.y * 4 + ac->swcal.y, + ac->hwcal.z * 4 + ac->swcal.z); + mutex_unlock(&ac->mutex); + + return count; +} + +static ssize_t adxl34x_calibrate_store(struct device *dev, + struct device_attribute *attr, + const char *buf, size_t count) +{ + struct adxl34x *ac = dev_get_drvdata(dev); + + /* + * Hardware offset calibration has a resolution of 15.6 mg/LSB. + * We use HW calibration and handle the remaining bits in SW. (4mg/LSB) + */ + + mutex_lock(&ac->mutex); + ac->hwcal.x -= (ac->saved.x / 4); + ac->swcal.x = ac->saved.x % 4; + + ac->hwcal.y -= (ac->saved.y / 4); + ac->swcal.y = ac->saved.y % 4; + + ac->hwcal.z -= (ac->saved.z / 4); + ac->swcal.z = ac->saved.z % 4; + + AC_WRITE(ac, OFSX, (s8) ac->hwcal.x); + AC_WRITE(ac, OFSY, (s8) ac->hwcal.y); + AC_WRITE(ac, OFSZ, (s8) ac->hwcal.z); + mutex_unlock(&ac->mutex); + + return count; +} + +static DEVICE_ATTR(calibrate, 0664, + adxl34x_calibrate_show, adxl34x_calibrate_store); + +static ssize_t adxl34x_rate_show(struct device *dev, + struct device_attribute *attr, char *buf) +{ + struct adxl34x *ac = dev_get_drvdata(dev); + + return sprintf(buf, "%u\n", RATE(ac->pdata.data_rate)); +} + +static ssize_t adxl34x_rate_store(struct device *dev, + struct device_attribute *attr, + const char *buf, size_t count) +{ + struct adxl34x *ac = dev_get_drvdata(dev); + unsigned long val; + int error; + + error = strict_strtoul(buf, 10, &val); + if (error) + return error; + + mutex_lock(&ac->mutex); + + ac->pdata.data_rate = RATE(val); + AC_WRITE(ac, BW_RATE, + ac->pdata.data_rate | + (ac->pdata.low_power_mode ? LOW_POWER : 0)); + + mutex_unlock(&ac->mutex); + + return count; +} + +static DEVICE_ATTR(rate, 0664, adxl34x_rate_show, adxl34x_rate_store); + +static ssize_t adxl34x_autosleep_show(struct device *dev, + struct device_attribute *attr, char *buf) +{ + struct adxl34x *ac = dev_get_drvdata(dev); + + return sprintf(buf, "%u\n", + ac->pdata.power_mode & (PCTL_AUTO_SLEEP | PCTL_LINK) ? 1 : 0); +} + +static ssize_t adxl34x_autosleep_store(struct device *dev, + struct device_attribute *attr, + const char *buf, size_t count) +{ + struct adxl34x *ac = dev_get_drvdata(dev); + unsigned long val; + int error; + + error = strict_strtoul(buf, 10, &val); + if (error) + return error; + + mutex_lock(&ac->mutex); + + if (val) + ac->pdata.power_mode |= (PCTL_AUTO_SLEEP | PCTL_LINK); + else + ac->pdata.power_mode &= ~(PCTL_AUTO_SLEEP | PCTL_LINK); + + if (!ac->disabled && ac->opened) + AC_WRITE(ac, POWER_CTL, ac->pdata.power_mode | PCTL_MEASURE); + + mutex_unlock(&ac->mutex); + + return count; +} + +static DEVICE_ATTR(autosleep, 0664, + adxl34x_autosleep_show, adxl34x_autosleep_store); + +static ssize_t adxl34x_position_show(struct device *dev, + struct device_attribute *attr, char *buf) +{ + struct adxl34x *ac = dev_get_drvdata(dev); + ssize_t count; + + mutex_lock(&ac->mutex); + count = sprintf(buf, "(%d, %d, %d)\n", + ac->saved.x, ac->saved.y, ac->saved.z); + mutex_unlock(&ac->mutex); + + return count; +} + +static DEVICE_ATTR(position, S_IRUGO, adxl34x_position_show, NULL); + +#ifdef ADXL_DEBUG +static ssize_t adxl34x_write_store(struct device *dev, + struct device_attribute *attr, + const char *buf, size_t count) +{ + struct adxl34x *ac = dev_get_drvdata(dev); + unsigned long val; + int error; + + /* + * This allows basic ADXL register write access for debug purposes. + */ + error = strict_strtoul(buf, 16, &val); + if (error) + return error; + + mutex_lock(&ac->mutex); + AC_WRITE(ac, val >> 8, val & 0xFF); + mutex_unlock(&ac->mutex); + + return count; +} + +static DEVICE_ATTR(write, 0664, NULL, adxl34x_write_store); +#endif + +static struct attribute *adxl34x_attributes[] = { + &dev_attr_disable.attr, + &dev_attr_calibrate.attr, + &dev_attr_rate.attr, + &dev_attr_autosleep.attr, + &dev_attr_position.attr, +#ifdef ADXL_DEBUG + &dev_attr_write.attr, +#endif + NULL +}; + +static const struct attribute_group adxl34x_attr_group = { + .attrs = adxl34x_attributes, +}; + +static int adxl34x_input_open(struct input_dev *input) +{ + struct adxl34x *ac = input_get_drvdata(input); + + mutex_lock(&ac->mutex); + ac->opened = true; + __adxl34x_enable(ac); + mutex_unlock(&ac->mutex); + + return 0; +} + +static void adxl34x_input_close(struct input_dev *input) +{ + struct adxl34x *ac = input_get_drvdata(input); + + mutex_lock(&ac->mutex); + __adxl34x_disable(ac); + ac->opened = false; + mutex_unlock(&ac->mutex); +} + +struct adxl34x *adxl34x_probe(struct device *dev, int irq, + bool fifo_delay_default, + const struct adxl34x_bus_ops *bops) +{ + struct adxl34x *ac; + struct input_dev *input_dev; + const struct adxl34x_platform_data *pdata; + int err, range; + unsigned char revid; + + if (!irq) { + dev_err(dev, "no IRQ?\n"); + err = -ENODEV; + goto err_out; + } + + ac = kzalloc(sizeof(*ac), GFP_KERNEL); + input_dev = input_allocate_device(); + if (!ac || !input_dev) { + err = -ENOMEM; + goto err_out; + } + + ac->fifo_delay = fifo_delay_default; + + pdata = dev->platform_data; + if (!pdata) { + dev_dbg(dev, + "No platfrom data: Using default initialization\n"); + pdata = &adxl34x_default_init; + } + + ac->pdata = *pdata; + pdata = &ac->pdata; + + ac->input = input_dev; + ac->disabled = true; + ac->dev = dev; + ac->irq = irq; + ac->bops = bops; + + mutex_init(&ac->mutex); + + input_dev->name = "ADXL34x accelerometer"; + revid = ac->bops->read(dev, DEVID); + + switch (revid) { + case ID_ADXL345: + ac->model = 345; + break; + case ID_ADXL346: + ac->model = 346; + break; + default: + dev_err(dev, "Failed to probe %s\n", input_dev->name); + err = -ENODEV; + goto err_free_mem; + } + + snprintf(ac->phys, sizeof(ac->phys), "%s/input0", dev_name(dev)); + + input_dev->phys = ac->phys; + input_dev->dev.parent = dev; + input_dev->id.product = ac->model; + input_dev->id.bustype = bops->bustype; + input_dev->open = adxl34x_input_open; + input_dev->close = adxl34x_input_close; + + input_set_drvdata(input_dev, ac); + + __set_bit(ac->pdata.ev_type, input_dev->evbit); + + if (ac->pdata.ev_type == EV_REL) { + __set_bit(REL_X, input_dev->relbit); + __set_bit(REL_Y, input_dev->relbit); + __set_bit(REL_Z, input_dev->relbit); + } else { + /* EV_ABS */ + __set_bit(ABS_X, input_dev->absbit); + __set_bit(ABS_Y, input_dev->absbit); + __set_bit(ABS_Z, input_dev->absbit); + + if (pdata->data_range & FULL_RES) + range = ADXL_FULLRES_MAX_VAL; /* Signed 13-bit */ + else + range = ADXL_FIXEDRES_MAX_VAL; /* Signed 10-bit */ + + input_set_abs_params(input_dev, ABS_X, -range, range, 3, 3); + input_set_abs_params(input_dev, ABS_Y, -range, range, 3, 3); + input_set_abs_params(input_dev, ABS_Z, -range, range, 3, 3); + } + + __set_bit(EV_KEY, input_dev->evbit); + __set_bit(pdata->ev_code_tap[ADXL_X_AXIS], input_dev->keybit); + __set_bit(pdata->ev_code_tap[ADXL_Y_AXIS], input_dev->keybit); + __set_bit(pdata->ev_code_tap[ADXL_Z_AXIS], input_dev->keybit); + + if (pdata->ev_code_ff) { + ac->int_mask = FREE_FALL; + __set_bit(pdata->ev_code_ff, input_dev->keybit); + } + + if (pdata->ev_code_act_inactivity) + __set_bit(pdata->ev_code_act_inactivity, input_dev->keybit); + + ac->int_mask |= ACTIVITY | INACTIVITY; + + if (pdata->watermark) { + ac->int_mask |= WATERMARK; + if (!FIFO_MODE(pdata->fifo_mode)) + ac->pdata.fifo_mode |= FIFO_STREAM; + } else { + ac->int_mask |= DATA_READY; + } + + if (pdata->tap_axis_control & (TAP_X_EN | TAP_Y_EN | TAP_Z_EN)) + ac->int_mask |= SINGLE_TAP | DOUBLE_TAP; + + if (FIFO_MODE(pdata->fifo_mode) == FIFO_BYPASS) + ac->fifo_delay = false; + + ac->bops->write(dev, POWER_CTL, 0); + + err = request_threaded_irq(ac->irq, NULL, adxl34x_irq, + IRQF_TRIGGER_HIGH | IRQF_ONESHOT, + dev_name(dev), ac); + if (err) { + dev_err(dev, "irq %d busy?\n", ac->irq); + goto err_free_mem; + } + + err = sysfs_create_group(&dev->kobj, &adxl34x_attr_group); + if (err) + goto err_free_irq; + + err = input_register_device(input_dev); + if (err) + goto err_remove_attr; + + AC_WRITE(ac, THRESH_TAP, pdata->tap_threshold); + AC_WRITE(ac, OFSX, pdata->x_axis_offset); + ac->hwcal.x = pdata->x_axis_offset; + AC_WRITE(ac, OFSY, pdata->y_axis_offset); + ac->hwcal.y = pdata->y_axis_offset; + AC_WRITE(ac, OFSZ, pdata->z_axis_offset); + ac->hwcal.z = pdata->z_axis_offset; + AC_WRITE(ac, THRESH_TAP, pdata->tap_threshold); + AC_WRITE(ac, DUR, pdata->tap_duration); + AC_WRITE(ac, LATENT, pdata->tap_latency); + AC_WRITE(ac, WINDOW, pdata->tap_window); + AC_WRITE(ac, THRESH_ACT, pdata->activity_threshold); + AC_WRITE(ac, THRESH_INACT, pdata->inactivity_threshold); + AC_WRITE(ac, TIME_INACT, pdata->inactivity_time); + AC_WRITE(ac, THRESH_FF, pdata->free_fall_threshold); + AC_WRITE(ac, TIME_FF, pdata->free_fall_time); + AC_WRITE(ac, TAP_AXES, pdata->tap_axis_control); + AC_WRITE(ac, ACT_INACT_CTL, pdata->act_axis_control); + AC_WRITE(ac, BW_RATE, RATE(ac->pdata.data_rate) | + (pdata->low_power_mode ? LOW_POWER : 0)); + AC_WRITE(ac, DATA_FORMAT, pdata->data_range); + AC_WRITE(ac, FIFO_CTL, FIFO_MODE(pdata->fifo_mode) | + SAMPLES(pdata->watermark)); + + if (pdata->use_int2) + /* Map all INTs to INT2 */ + AC_WRITE(ac, INT_MAP, ac->int_mask | OVERRUN); + else + /* Map all INTs to INT1 */ + AC_WRITE(ac, INT_MAP, 0); + + AC_WRITE(ac, INT_ENABLE, ac->int_mask | OVERRUN); + + ac->pdata.power_mode &= (PCTL_AUTO_SLEEP | PCTL_LINK); + + return ac; + + err_remove_attr: + sysfs_remove_group(&dev->kobj, &adxl34x_attr_group); + err_free_irq: + free_irq(ac->irq, ac); + err_free_mem: + input_free_device(input_dev); + kfree(ac); + err_out: + return ERR_PTR(err); +} +EXPORT_SYMBOL_GPL(adxl34x_probe); + +int adxl34x_remove(struct adxl34x *ac) +{ + adxl34x_disable(ac); + sysfs_remove_group(&ac->dev->kobj, &adxl34x_attr_group); + free_irq(ac->irq, ac); + input_unregister_device(ac->input); + kfree(ac); + + dev_dbg(ac->dev, "unregistered accelerometer\n"); + return 0; +} +EXPORT_SYMBOL_GPL(adxl34x_remove); + +MODULE_AUTHOR("Michael Hennerich "); +MODULE_DESCRIPTION("ADXL345/346 Three-Axis Digital Accelerometer Driver"); +MODULE_LICENSE("GPL"); diff --git a/drivers/input/misc/adxl34x.h b/drivers/input/misc/adxl34x.h new file mode 100644 index 000000000000..ea9093c15c81 --- /dev/null +++ b/drivers/input/misc/adxl34x.h @@ -0,0 +1,30 @@ +/* + * ADXL345/346 Three-Axis Digital Accelerometers (I2C/SPI Interface) + * + * Enter bugs at http://blackfin.uclinux.org/ + * + * Copyright (C) 2009 Michael Hennerich, Analog Devices Inc. + * Licensed under the GPL-2 or later. + */ + +#ifndef _ADXL34X_H_ +#define _ADXL34X_H_ + +struct device; +struct adxl34x; + +struct adxl34x_bus_ops { + u16 bustype; + int (*read)(struct device *, unsigned char); + int (*read_block)(struct device *, unsigned char, int, void *); + int (*write)(struct device *, unsigned char, unsigned char); +}; + +void adxl34x_disable(struct adxl34x *ac); +void adxl34x_enable(struct adxl34x *ac); +struct adxl34x *adxl34x_probe(struct device *dev, int irq, + bool fifo_delay_default, + const struct adxl34x_bus_ops *bops); +int adxl34x_remove(struct adxl34x *ac); + +#endif diff --git a/include/linux/input/adxl34x.h b/include/linux/input/adxl34x.h new file mode 100644 index 000000000000..712118238038 --- /dev/null +++ b/include/linux/input/adxl34x.h @@ -0,0 +1,293 @@ +/* + * include/linux/input/adxl34x.h + * + * Digital Accelerometer characteristics are highly application specific + * and may vary between boards and models. The platform_data for the + * device's "struct device" holds this information. + * + * Copyright 2009 Analog Devices Inc. + * + * Licensed under the GPL-2 or later. + */ + +#ifndef __LINUX_INPUT_ADXL34X_H__ +#define __LINUX_INPUT_ADXL34X_H__ + +struct adxl34x_platform_data { + + /* + * X,Y,Z Axis Offset: + * offer user offset adjustments in twoscompliment + * form with a scale factor of 15.6 mg/LSB (i.e. 0x7F = +2 g) + */ + + s8 x_axis_offset; + s8 y_axis_offset; + s8 z_axis_offset; + + /* + * TAP_X/Y/Z Enable: Setting TAP_X, Y, or Z Enable enables X, + * Y, or Z participation in Tap detection. A '0' excludes the + * selected axis from participation in Tap detection. + * Setting the SUPPRESS bit suppresses Double Tap detection if + * acceleration greater than tap_threshold is present between + * taps. + */ + +#define ADXL_SUPPRESS (1 << 3) +#define ADXL_TAP_X_EN (1 << 2) +#define ADXL_TAP_Y_EN (1 << 1) +#define ADXL_TAP_Z_EN (1 << 0) + + u8 tap_axis_control; + + /* + * tap_threshold: + * holds the threshold value for tap detection/interrupts. + * The data format is unsigned. The scale factor is 62.5 mg/LSB + * (i.e. 0xFF = +16 g). A zero value may result in undesirable + * behavior if Tap/Double Tap is enabled. + */ + + u8 tap_threshold; + + /* + * tap_duration: + * is an unsigned time value representing the maximum + * time that an event must be above the tap_threshold threshold + * to qualify as a tap event. The scale factor is 625 us/LSB. A zero + * value will prevent Tap/Double Tap functions from working. + */ + + u8 tap_duration; + + /* + * tap_latency: + * is an unsigned time value representing the wait time + * from the detection of a tap event to the opening of the time + * window tap_window for a possible second tap event. The scale + * factor is 1.25 ms/LSB. A zero value will disable the Double Tap + * function. + */ + + u8 tap_latency; + + /* + * tap_window: + * is an unsigned time value representing the amount + * of time after the expiration of tap_latency during which a second + * tap can begin. The scale factor is 1.25 ms/LSB. A zero value will + * disable the Double Tap function. + */ + + u8 tap_window; + + /* + * act_axis_control: + * X/Y/Z Enable: A '1' enables X, Y, or Z participation in activity + * or inactivity detection. A '0' excludes the selected axis from + * participation. If all of the axes are excluded, the function is + * disabled. + * AC/DC: A '0' = DC coupled operation and a '1' = AC coupled + * operation. In DC coupled operation, the current acceleration is + * compared with activity_threshold and inactivity_threshold directly + * to determine whether activity or inactivity is detected. In AC + * coupled operation for activity detection, the acceleration value + * at the start of activity detection is taken as a reference value. + * New samples of acceleration are then compared to this + * reference value and if the magnitude of the difference exceeds + * activity_threshold the device will trigger an activity interrupt. In + * AC coupled operation for inactivity detection, a reference value + * is used again for comparison and is updated whenever the + * device exceeds the inactivity threshold. Once the reference + * value is selected, the device compares the magnitude of the + * difference between the reference value and the current + * acceleration with inactivity_threshold. If the difference is below + * inactivity_threshold for a total of inactivity_time, the device is + * considered inactive and the inactivity interrupt is triggered. + */ + +#define ADXL_ACT_ACDC (1 << 7) +#define ADXL_ACT_X_EN (1 << 6) +#define ADXL_ACT_Y_EN (1 << 5) +#define ADXL_ACT_Z_EN (1 << 4) +#define ADXL_INACT_ACDC (1 << 3) +#define ADXL_INACT_X_EN (1 << 2) +#define ADXL_INACT_Y_EN (1 << 1) +#define ADXL_INACT_Z_EN (1 << 0) + + u8 act_axis_control; + + /* + * activity_threshold: + * holds the threshold value for activity detection. + * The data format is unsigned. The scale factor is + * 62.5 mg/LSB. A zero value may result in undesirable behavior if + * Activity interrupt is enabled. + */ + + u8 activity_threshold; + + /* + * inactivity_threshold: + * holds the threshold value for inactivity + * detection. The data format is unsigned. The scale + * factor is 62.5 mg/LSB. A zero value may result in undesirable + * behavior if Inactivity interrupt is enabled. + */ + + u8 inactivity_threshold; + + /* + * inactivity_time: + * is an unsigned time value representing the + * amount of time that acceleration must be below the value in + * inactivity_threshold for inactivity to be declared. The scale factor + * is 1 second/LSB. Unlike the other interrupt functions, which + * operate on unfiltered data, the inactivity function operates on the + * filtered output data. At least one output sample must be + * generated for the inactivity interrupt to be triggered. This will + * result in the function appearing un-responsive if the + * inactivity_time register is set with a value less than the time + * constant of the Output Data Rate. A zero value will result in an + * interrupt when the output data is below inactivity_threshold. + */ + + u8 inactivity_time; + + /* + * free_fall_threshold: + * holds the threshold value for Free-Fall detection. + * The data format is unsigned. The root-sum-square(RSS) value + * of all axes is calculated and compared to the value in + * free_fall_threshold to determine if a free fall event may be + * occurring. The scale factor is 62.5 mg/LSB. A zero value may + * result in undesirable behavior if Free-Fall interrupt is + * enabled. Values between 300 and 600 mg (0x05 to 0x09) are + * recommended. + */ + + u8 free_fall_threshold; + + /* + * free_fall_time: + * is an unsigned time value representing the minimum + * time that the RSS value of all axes must be less than + * free_fall_threshold to generate a Free-Fall interrupt. The + * scale factor is 5 ms/LSB. A zero value may result in + * undesirable behavior if Free-Fall interrupt is enabled. + * Values between 100 to 350 ms (0x14 to 0x46) are recommended. + */ + + u8 free_fall_time; + + /* + * data_rate: + * Selects device bandwidth and output data rate. + * RATE = 3200 Hz / (2^(15 - x)). Default value is 0x0A, or 100 Hz + * Output Data Rate. An Output Data Rate should be selected that + * is appropriate for the communication protocol and frequency + * selected. Selecting too high of an Output Data Rate with a low + * communication speed will result in samples being discarded. + */ + + u8 data_rate; + + /* + * data_range: + * FULL_RES: When this bit is set with the device is + * in Full-Resolution Mode, where the output resolution increases + * with RANGE to maintain a 4 mg/LSB scale factor. When this + * bit is cleared the device is in 10-bit Mode and RANGE determine the + * maximum g-Range and scale factor. + */ + +#define ADXL_FULL_RES (1 << 3) +#define ADXL_RANGE_PM_2g 0 +#define ADXL_RANGE_PM_4g 1 +#define ADXL_RANGE_PM_8g 2 +#define ADXL_RANGE_PM_16g 3 + + u8 data_range; + + /* + * low_power_mode: + * A '0' = Normal operation and a '1' = Reduced + * power operation with somewhat higher noise. + */ + + u8 low_power_mode; + + /* + * power_mode: + * LINK: A '1' with both the activity and inactivity functions + * enabled will delay the start of the activity function until + * inactivity is detected. Once activity is detected, inactivity + * detection will begin and prevent the detection of activity. This + * bit serially links the activity and inactivity functions. When '0' + * the inactivity and activity functions are concurrent. Additional + * information can be found in the Application section under Link + * Mode. + * AUTO_SLEEP: A '1' sets the ADXL34x to switch to Sleep Mode + * when inactivity (acceleration has been below inactivity_threshold + * for at least inactivity_time) is detected and the LINK bit is set. + * A '0' disables automatic switching to Sleep Mode. See SLEEP + * for further description. + */ + +#define ADXL_LINK (1 << 5) +#define ADXL_AUTO_SLEEP (1 << 4) + + u8 power_mode; + + /* + * fifo_mode: + * BYPASS The FIFO is bypassed + * FIFO FIFO collects up to 32 values then stops collecting data + * STREAM FIFO holds the last 32 data values. Once full, the FIFO's + * oldest data is lost as it is replaced with newer data + * + * DEFAULT should be ADXL_FIFO_STREAM + */ + +#define ADXL_FIFO_BYPASS 0 +#define ADXL_FIFO_FIFO 1 +#define ADXL_FIFO_STREAM 2 + + u8 fifo_mode; + + /* + * watermark: + * The Watermark feature can be used to reduce the interrupt load + * of the system. The FIFO fills up to the value stored in watermark + * [1..32] and then generates an interrupt. + * A '0' disables the watermark feature. + */ + + u8 watermark; + + u32 ev_type; /* EV_ABS or EV_REL */ + + u32 ev_code_x; /* ABS_X,Y,Z or REL_X,Y,Z */ + u32 ev_code_y; /* ABS_X,Y,Z or REL_X,Y,Z */ + u32 ev_code_z; /* ABS_X,Y,Z or REL_X,Y,Z */ + + /* + * A valid BTN or KEY Code; use tap_axis_control to disable + * event reporting + */ + + u32 ev_code_tap[3]; /* EV_KEY {X-Axis, Y-Axis, Z-Axis} */ + + /* + * A valid BTN or KEY Code for Free-Fall or Activity enables + * input event reporting. A '0' disables the Free-Fall or + * Activity reporting. + */ + + u32 ev_code_ff; /* EV_KEY */ + u32 ev_code_act_inactivity; /* EV_KEY */ + + u8 use_int2; +}; +#endif -- cgit v1.2.3 From 671386bb23c57e5448f386a41101ed65ad1d488c Mon Sep 17 00:00:00 2001 From: Michael Hennerich Date: Fri, 25 Jun 2010 08:44:10 -0700 Subject: Input: adxl34x - add support for ADXL346 orientation sensing Signed-off-by: Michael Hennerich Signed-off-by: Mike Frysinger Signed-off-by: Dmitry Torokhov --- drivers/input/misc/adxl34x.c | 62 ++++++++++++++++++++++++++++++++++++++++--- include/linux/input/adxl34x.h | 56 ++++++++++++++++++++++++++++++++++++++ 2 files changed, 114 insertions(+), 4 deletions(-) (limited to 'include/linux/input') diff --git a/drivers/input/misc/adxl34x.c b/drivers/input/misc/adxl34x.c index 07f9ef631540..77fb40987059 100644 --- a/drivers/input/misc/adxl34x.c +++ b/drivers/input/misc/adxl34x.c @@ -196,6 +196,8 @@ struct adxl34x { struct axis_triple hwcal; struct axis_triple saved; char phys[32]; + unsigned orient2d_saved; + unsigned orient3d_saved; bool disabled; /* P: mutex */ bool opened; /* P: mutex */ bool fifo_delay; @@ -296,7 +298,7 @@ static irqreturn_t adxl34x_irq(int irq, void *handle) { struct adxl34x *ac = handle; struct adxl34x_platform_data *pdata = &ac->pdata; - int int_stat, tap_stat, samples; + int int_stat, tap_stat, samples, orient, orient_code; /* * ACT_TAP_STATUS should be read before clearing the interrupt @@ -332,6 +334,36 @@ static irqreturn_t adxl34x_irq(int irq, void *handle) pdata->ev_code_act_inactivity, 0); } + /* + * ORIENTATION SENSING ADXL346 only + */ + if (pdata->orientation_enable) { + orient = AC_READ(ac, ORIENT); + if ((pdata->orientation_enable & ADXL_EN_ORIENTATION_2D) && + (orient & ADXL346_2D_VALID)) { + + orient_code = ADXL346_2D_ORIENT(orient); + /* Report orientation only when it changes */ + if (ac->orient2d_saved != orient_code) { + ac->orient2d_saved = orient_code; + adxl34x_report_key_single(ac->input, + pdata->ev_codes_orient_2d[orient_code]); + } + } + + if ((pdata->orientation_enable & ADXL_EN_ORIENTATION_3D) && + (orient & ADXL346_3D_VALID)) { + + orient_code = ADXL346_3D_ORIENT(orient) - 1; + /* Report orientation only when it changes */ + if (ac->orient3d_saved != orient_code) { + ac->orient3d_saved = orient_code; + adxl34x_report_key_single(ac->input, + pdata->ev_codes_orient_3d[orient_code]); + } + } + } + if (int_stat & (DATA_READY | WATERMARK)) { if (pdata->fifo_mode) @@ -641,7 +673,7 @@ struct adxl34x *adxl34x_probe(struct device *dev, int irq, struct adxl34x *ac; struct input_dev *input_dev; const struct adxl34x_platform_data *pdata; - int err, range; + int err, range, i; unsigned char revid; if (!irq) { @@ -797,12 +829,34 @@ struct adxl34x *adxl34x_probe(struct device *dev, int irq, AC_WRITE(ac, FIFO_CTL, FIFO_MODE(pdata->fifo_mode) | SAMPLES(pdata->watermark)); - if (pdata->use_int2) + if (pdata->use_int2) { /* Map all INTs to INT2 */ AC_WRITE(ac, INT_MAP, ac->int_mask | OVERRUN); - else + } else { /* Map all INTs to INT1 */ AC_WRITE(ac, INT_MAP, 0); + } + + if (ac->model == 346 && ac->pdata.orientation_enable) { + AC_WRITE(ac, ORIENT_CONF, + ORIENT_DEADZONE(ac->pdata.deadzone_angle) | + ORIENT_DIVISOR(ac->pdata.divisor_length)); + + ac->orient2d_saved = 1234; + ac->orient3d_saved = 1234; + + if (pdata->orientation_enable & ADXL_EN_ORIENTATION_3D) + for (i = 0; i < ARRAY_SIZE(pdata->ev_codes_orient_3d); i++) + __set_bit(pdata->ev_codes_orient_3d[i], + input_dev->keybit); + + if (pdata->orientation_enable & ADXL_EN_ORIENTATION_2D) + for (i = 0; i < ARRAY_SIZE(pdata->ev_codes_orient_2d); i++) + __set_bit(pdata->ev_codes_orient_2d[i], + input_dev->keybit); + } else { + ac->pdata.orientation_enable = 0; + } AC_WRITE(ac, INT_ENABLE, ac->int_mask | OVERRUN); diff --git a/include/linux/input/adxl34x.h b/include/linux/input/adxl34x.h index 712118238038..df00d998a44a 100644 --- a/include/linux/input/adxl34x.h +++ b/include/linux/input/adxl34x.h @@ -288,6 +288,62 @@ struct adxl34x_platform_data { u32 ev_code_ff; /* EV_KEY */ u32 ev_code_act_inactivity; /* EV_KEY */ + /* + * Use ADXL34x INT2 instead of INT1 + */ u8 use_int2; + + /* + * ADXL346 only ORIENTATION SENSING feature + * The orientation function of the ADXL346 reports both 2-D and + * 3-D orientation concurrently. + */ + +#define ADXL_EN_ORIENTATION_2D 1 +#define ADXL_EN_ORIENTATION_3D 2 +#define ADXL_EN_ORIENTATION_2D_3D 3 + + u8 orientation_enable; + + /* + * The width of the deadzone region between two or more + * orientation positions is determined by setting the Deadzone + * value. The deadzone region size can be specified with a + * resolution of 3.6deg. The deadzone angle represents the total + * angle where the orientation is considered invalid. + */ + +#define ADXL_DEADZONE_ANGLE_0p0 0 /* !!!0.0 [deg] */ +#define ADXL_DEADZONE_ANGLE_3p6 1 /* 3.6 [deg] */ +#define ADXL_DEADZONE_ANGLE_7p2 2 /* 7.2 [deg] */ +#define ADXL_DEADZONE_ANGLE_10p8 3 /* 10.8 [deg] */ +#define ADXL_DEADZONE_ANGLE_14p4 4 /* 14.4 [deg] */ +#define ADXL_DEADZONE_ANGLE_18p0 5 /* 18.0 [deg] */ +#define ADXL_DEADZONE_ANGLE_21p6 6 /* 21.6 [deg] */ +#define ADXL_DEADZONE_ANGLE_25p2 7 /* 25.2 [deg] */ + + u8 deadzone_angle; + + /* + * To eliminate most human motion such as walking or shaking, + * a Divisor value should be selected to effectively limit the + * orientation bandwidth. Set the depth of the filter used to + * low-pass filter the measured acceleration for stable + * orientation sensing + */ + +#define ADXL_LP_FILTER_DIVISOR_2 0 +#define ADXL_LP_FILTER_DIVISOR_4 1 +#define ADXL_LP_FILTER_DIVISOR_8 2 +#define ADXL_LP_FILTER_DIVISOR_16 3 +#define ADXL_LP_FILTER_DIVISOR_32 4 +#define ADXL_LP_FILTER_DIVISOR_64 5 +#define ADXL_LP_FILTER_DIVISOR_128 6 +#define ADXL_LP_FILTER_DIVISOR_256 7 + + u8 divisor_length; + + u32 ev_codes_orient_2d[4]; /* EV_KEY {+X, -X, +Y, -Y} */ + u32 ev_codes_orient_3d[6]; /* EV_KEY {+Z, +Y, +X, -X, -Y, -Z} */ }; #endif -- cgit v1.2.3 From 60347c194acec7ff1b4291ac8e62a5345244c2ee Mon Sep 17 00:00:00 2001 From: Samuli Konttila Date: Fri, 30 Jul 2010 09:02:43 -0700 Subject: Input: cy8ctmg110 - capacitive touchscreen support Add support for the cy8ctmg110 capacitive touchscreen used on some embedded devices. (Some clean up by Alan Cox) Signed-off-by: Alan Cox Signed-off-by: Dmitry Torokhov --- drivers/input/touchscreen/Kconfig | 14 ++ drivers/input/touchscreen/Makefile | 3 +- drivers/input/touchscreen/cy8ctmg110_ts.c | 363 ++++++++++++++++++++++++++++++ include/linux/input/cy8ctmg110_pdata.h | 10 + 4 files changed, 389 insertions(+), 1 deletion(-) create mode 100644 drivers/input/touchscreen/cy8ctmg110_ts.c create mode 100644 include/linux/input/cy8ctmg110_pdata.h (limited to 'include/linux/input') diff --git a/drivers/input/touchscreen/Kconfig b/drivers/input/touchscreen/Kconfig index 7bfcfdff6cf8..61f35184f76c 100644 --- a/drivers/input/touchscreen/Kconfig +++ b/drivers/input/touchscreen/Kconfig @@ -98,6 +98,20 @@ config TOUCHSCREEN_BITSY To compile this driver as a module, choose M here: the module will be called h3600_ts_input. +config TOUCHSCREEN_CY8CTMG110 + tristate "cy8ctmg110 touchscreen" + depends on I2C + depends on GPIOLIB + + help + Say Y here if you have a cy8ctmg110 capacitive touchscreen on + an AAVA device. + + If unsure, say N. + + To compile this driver as a module, choose M here: the + module will be called cy8ctmg110_ts. + config TOUCHSCREEN_DA9034 tristate "Touchscreen support for Dialog Semiconductor DA9034" depends on PMIC_DA903X diff --git a/drivers/input/touchscreen/Makefile b/drivers/input/touchscreen/Makefile index 779de0d9d413..bd6f30b4ff70 100644 --- a/drivers/input/touchscreen/Makefile +++ b/drivers/input/touchscreen/Makefile @@ -14,6 +14,8 @@ obj-$(CONFIG_TOUCHSCREEN_AD7879_SPI) += ad7879-spi.o obj-$(CONFIG_TOUCHSCREEN_ADS7846) += ads7846.o obj-$(CONFIG_TOUCHSCREEN_ATMEL_TSADCC) += atmel_tsadcc.o obj-$(CONFIG_TOUCHSCREEN_BITSY) += h3600_ts_input.o +obj-$(CONFIG_TOUCHSCREEN_CY8CTMG110) += cy8ctmg110_ts.o +obj-$(CONFIG_TOUCHSCREEN_DA9034) += da9034-ts.o obj-$(CONFIG_TOUCHSCREEN_DYNAPRO) += dynapro.o obj-$(CONFIG_TOUCHSCREEN_HAMPSHIRE) += hampshire.o obj-$(CONFIG_TOUCHSCREEN_GUNZE) += gunze.o @@ -41,7 +43,6 @@ obj-$(CONFIG_TOUCHSCREEN_TSC2007) += tsc2007.o obj-$(CONFIG_TOUCHSCREEN_UCB1400) += ucb1400_ts.o obj-$(CONFIG_TOUCHSCREEN_WACOM_W8001) += wacom_w8001.o obj-$(CONFIG_TOUCHSCREEN_WM97XX) += wm97xx-ts.o -obj-$(CONFIG_TOUCHSCREEN_DA9034) += da9034-ts.o wm97xx-ts-$(CONFIG_TOUCHSCREEN_WM9705) += wm9705.o wm97xx-ts-$(CONFIG_TOUCHSCREEN_WM9712) += wm9712.o wm97xx-ts-$(CONFIG_TOUCHSCREEN_WM9713) += wm9713.o diff --git a/drivers/input/touchscreen/cy8ctmg110_ts.c b/drivers/input/touchscreen/cy8ctmg110_ts.c new file mode 100644 index 000000000000..4eb7df0b7f87 --- /dev/null +++ b/drivers/input/touchscreen/cy8ctmg110_ts.c @@ -0,0 +1,363 @@ +/* + * Driver for cypress touch screen controller + * + * Copyright (c) 2009 Aava Mobile + * + * Some cleanups by Alan Cox + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. + */ + +#include +#include +#include +#include +#include +#include +#include +#include +#include + +#define CY8CTMG110_DRIVER_NAME "cy8ctmg110" + +/* Touch coordinates */ +#define CY8CTMG110_X_MIN 0 +#define CY8CTMG110_Y_MIN 0 +#define CY8CTMG110_X_MAX 759 +#define CY8CTMG110_Y_MAX 465 + + +/* cy8ctmg110 register definitions */ +#define CY8CTMG110_TOUCH_WAKEUP_TIME 0 +#define CY8CTMG110_TOUCH_SLEEP_TIME 2 +#define CY8CTMG110_TOUCH_X1 3 +#define CY8CTMG110_TOUCH_Y1 5 +#define CY8CTMG110_TOUCH_X2 7 +#define CY8CTMG110_TOUCH_Y2 9 +#define CY8CTMG110_FINGERS 11 +#define CY8CTMG110_GESTURE 12 +#define CY8CTMG110_REG_MAX 13 + + +/* + * The touch driver structure. + */ +struct cy8ctmg110 { + struct input_dev *input; + char phys[32]; + struct i2c_client *client; + int reset_pin; + int irq_pin; +}; + +/* + * cy8ctmg110_power is the routine that is called when touch hardware + * will powered off or on. + */ +static void cy8ctmg110_power(struct cy8ctmg110 *ts, bool poweron) +{ + if (ts->reset_pin) + gpio_direction_output(ts->reset_pin, 1 - poweron); +} + +static int cy8ctmg110_write_regs(struct cy8ctmg110 *tsc, unsigned char reg, + unsigned char len, unsigned char *value) +{ + struct i2c_client *client = tsc->client; + unsigned int ret; + unsigned char i2c_data[6]; + + BUG_ON(len > 5); + + i2c_data[0] = reg; + memcpy(i2c_data + 1, value, len); + + ret = i2c_master_send(client, i2c_data, len + 1); + if (ret != 1) { + dev_err(&client->dev, "i2c write data cmd failed\n"); + return ret; + } + + return 0; +} + +static int cy8ctmg110_read_regs(struct cy8ctmg110 *tsc, + unsigned char *data, unsigned char len, unsigned char cmd) +{ + struct i2c_client *client = tsc->client; + unsigned int ret; + struct i2c_msg msg[2] = { + /* first write slave position to i2c devices */ + { client->addr, 0, 1, &cmd }, + /* Second read data from position */ + { client->addr, I2C_M_RD, len, data } + }; + + ret = i2c_transfer(client->adapter, msg, 2); + if (ret < 0) + return ret; + + return 0; +} + +static int cy8ctmg110_touch_pos(struct cy8ctmg110 *tsc) +{ + struct input_dev *input = tsc->input; + unsigned char reg_p[CY8CTMG110_REG_MAX]; + int x, y; + + memset(reg_p, 0, CY8CTMG110_REG_MAX); + + /* Reading coordinates */ + if (cy8ctmg110_read_regs(tsc, reg_p, 9, CY8CTMG110_TOUCH_X1) != 0) + return -EIO; + + y = reg_p[2] << 8 | reg_p[3]; + x = reg_p[0] << 8 | reg_p[1]; + + /* Number of touch */ + if (reg_p[8] == 0) { + input_report_key(input, BTN_TOUCH, 0); + } else { + input_report_key(input, BTN_TOUCH, 1); + input_report_abs(input, ABS_X, x); + input_report_abs(input, ABS_Y, y); + } + + input_sync(input); + + return 0; +} + +static int cy8ctmg110_set_sleepmode(struct cy8ctmg110 *ts, bool sleep) +{ + unsigned char reg_p[3]; + + if (sleep) { + reg_p[0] = 0x00; + reg_p[1] = 0xff; + reg_p[2] = 5; + } else { + reg_p[0] = 0x10; + reg_p[1] = 0xff; + reg_p[2] = 0; + } + + return cy8ctmg110_write_regs(ts, CY8CTMG110_TOUCH_WAKEUP_TIME, 3, reg_p); +} + +static irqreturn_t cy8ctmg110_irq_thread(int irq, void *dev_id) +{ + struct cy8ctmg110 *tsc = dev_id; + + cy8ctmg110_touch_pos(tsc); + + return IRQ_HANDLED; +} + +static int __devinit cy8ctmg110_probe(struct i2c_client *client, + const struct i2c_device_id *id) +{ + const struct cy8ctmg110_pdata *pdata = client->dev.platform_data; + struct cy8ctmg110 *ts; + struct input_dev *input_dev; + int err; + + /* No pdata no way forward */ + if (pdata == NULL) { + dev_err(&client->dev, "no pdata\n"); + return -ENODEV; + } + + if (!i2c_check_functionality(client->adapter, + I2C_FUNC_SMBUS_READ_WORD_DATA)) + return -EIO; + + ts = kzalloc(sizeof(struct cy8ctmg110), GFP_KERNEL); + input_dev = input_allocate_device(); + if (!ts || !input_dev) { + err = -ENOMEM; + goto err_free_mem; + } + + ts->client = client; + ts->input = input_dev; + + snprintf(ts->phys, sizeof(ts->phys), + "%s/input0", dev_name(&client->dev)); + + input_dev->name = CY8CTMG110_DRIVER_NAME " Touchscreen"; + input_dev->phys = ts->phys; + input_dev->id.bustype = BUS_I2C; + input_dev->dev.parent = &client->dev; + + input_dev->evbit[0] = BIT_MASK(EV_KEY) | BIT_MASK(EV_ABS); + input_dev->keybit[BIT_WORD(BTN_TOUCH)] = BIT_MASK(BTN_TOUCH); + + input_set_abs_params(input_dev, ABS_X, + CY8CTMG110_X_MIN, CY8CTMG110_X_MAX, 0, 0); + input_set_abs_params(input_dev, ABS_Y, + CY8CTMG110_Y_MIN, CY8CTMG110_Y_MAX, 0, 0); + + if (ts->reset_pin) { + err = gpio_request(ts->reset_pin, NULL); + if (err) { + dev_err(&client->dev, + "Unable to request GPIO pin %d.\n", + ts->reset_pin); + goto err_free_mem; + } + } + + cy8ctmg110_power(ts, true); + cy8ctmg110_set_sleepmode(ts, false); + + err = gpio_request(ts->irq_pin, "touch_irq_key"); + if (err < 0) { + dev_err(&client->dev, + "Failed to request GPIO %d, error %d\n", + ts->irq_pin, err); + goto err_shutoff_device; + } + + err = gpio_direction_input(ts->irq_pin); + if (err < 0) { + dev_err(&client->dev, + "Failed to configure input direction for GPIO %d, error %d\n", + ts->irq_pin, err); + goto err_free_irq_gpio; + } + + client->irq = gpio_to_irq(ts->irq_pin); + if (client->irq < 0) { + err = client->irq; + dev_err(&client->dev, + "Unable to get irq number for GPIO %d, error %d\n", + ts->irq_pin, err); + goto err_free_irq_gpio; + } + + err = request_threaded_irq(client->irq, NULL, cy8ctmg110_irq_thread, + IRQF_TRIGGER_RISING, "touch_reset_key", ts); + if (err < 0) { + dev_err(&client->dev, + "irq %d busy? error %d\n", client->irq, err); + goto err_free_irq_gpio; + } + + err = input_register_device(input_dev); + if (err) + goto err_free_irq; + + i2c_set_clientdata(client, ts); + device_init_wakeup(&client->dev, 1); + return 0; + +err_free_irq: + free_irq(client->irq, ts); +err_free_irq_gpio: + gpio_free(ts->irq_pin); +err_shutoff_device: + cy8ctmg110_set_sleepmode(ts, true); + cy8ctmg110_power(ts, false); + if (ts->reset_pin) + gpio_free(ts->reset_pin); +err_free_mem: + input_free_device(input_dev); + kfree(ts); + return err; +} + +#ifdef CONFIG_PM +static int cy8ctmg110_suspend(struct i2c_client *client, pm_message_t mesg) +{ + struct cy8ctmg110 *ts = i2c_get_clientdata(client); + + if (device_may_wakeup(&client->dev)) + enable_irq_wake(client->irq); + else { + cy8ctmg110_set_sleepmode(ts, true); + cy8ctmg110_power(ts, false); + } + return 0; +} + +static int cy8ctmg110_resume(struct i2c_client *client) +{ + struct cy8ctmg110 *ts = i2c_get_clientdata(client); + + if (device_may_wakeup(&client->dev)) + disable_irq_wake(client->irq); + else { + cy8ctmg110_power(ts, true); + cy8ctmg110_set_sleepmode(ts, false); + } + return 0; +} +#endif + +static int __devexit cy8ctmg110_remove(struct i2c_client *client) +{ + struct cy8ctmg110 *ts = i2c_get_clientdata(client); + + cy8ctmg110_set_sleepmode(ts, true); + cy8ctmg110_power(ts, false); + + free_irq(client->irq, ts); + input_unregister_device(ts->input); + gpio_free(ts->irq_pin); + if (ts->reset_pin) + gpio_free(ts->reset_pin); + kfree(ts); + + return 0; +} + +static struct i2c_device_id cy8ctmg110_idtable[] = { + { CY8CTMG110_DRIVER_NAME, 1 }, + { } +}; + +MODULE_DEVICE_TABLE(i2c, cy8ctmg110_idtable); + +static struct i2c_driver cy8ctmg110_driver = { + .driver = { + .owner = THIS_MODULE, + .name = CY8CTMG110_DRIVER_NAME, + }, + .id_table = cy8ctmg110_idtable, + .probe = cy8ctmg110_probe, + .remove = __devexit_p(cy8ctmg110_remove), +#ifdef CONFIG_PM + .suspend = cy8ctmg110_suspend, + .resume = cy8ctmg110_resume, +#endif +}; + +static int __init cy8ctmg110_init(void) +{ + return i2c_add_driver(&cy8ctmg110_driver); +} + +static void __exit cy8ctmg110_exit(void) +{ + i2c_del_driver(&cy8ctmg110_driver); +} + +module_init(cy8ctmg110_init); +module_exit(cy8ctmg110_exit); + +MODULE_AUTHOR("Samuli Konttila "); +MODULE_DESCRIPTION("cy8ctmg110 TouchScreen Driver"); +MODULE_LICENSE("GPL v2"); diff --git a/include/linux/input/cy8ctmg110_pdata.h b/include/linux/input/cy8ctmg110_pdata.h new file mode 100644 index 000000000000..09522cb59910 --- /dev/null +++ b/include/linux/input/cy8ctmg110_pdata.h @@ -0,0 +1,10 @@ +#ifndef _LINUX_CY8CTMG110_PDATA_H +#define _LINUX_CY8CTMG110_PDATA_H + +struct cy8ctmg110_pdata +{ + int reset_pin; /* Reset pin is wired to this GPIO (optional) */ + int irq_pin; /* IRQ pin is wired to this GPIO */ +}; + +#endif -- cgit v1.2.3 From 4780c8df3856398020be2928d9e9fa8c457a09a4 Mon Sep 17 00:00:00 2001 From: Naveen Kumar Gaddipati Date: Mon, 4 Oct 2010 22:32:48 -0700 Subject: Input: add ROHM BU21013 touch panel controller support Add the ROHM BU21013 capacitive touch panel controller support with i2c interface. Acked-by: Linus Walleij Signed-off-by: Naveen Kumar Gaddipati Acked-by: Henrik Rydberg Signed-off-by: Dmitry Torokhov --- drivers/input/touchscreen/Kconfig | 12 + drivers/input/touchscreen/Makefile | 1 + drivers/input/touchscreen/bu21013_ts.c | 648 +++++++++++++++++++++++++++++++++ include/linux/input/bu21013.h | 44 +++ 4 files changed, 705 insertions(+) create mode 100644 drivers/input/touchscreen/bu21013_ts.c create mode 100644 include/linux/input/bu21013.h (limited to 'include/linux/input') diff --git a/drivers/input/touchscreen/Kconfig b/drivers/input/touchscreen/Kconfig index d59feb7b90f6..0ea361f23fa7 100644 --- a/drivers/input/touchscreen/Kconfig +++ b/drivers/input/touchscreen/Kconfig @@ -98,6 +98,18 @@ config TOUCHSCREEN_BITSY To compile this driver as a module, choose M here: the module will be called h3600_ts_input. +config TOUCHSCREEN_BU21013 + tristate "BU21013 based touch panel controllers" + depends on I2C + help + Say Y here if you have a bu21013 touchscreen connected to + your system. + + If unsure, say N. + + To compile this driver as a module, choose M here: the + module will be called bu21013_ts. + config TOUCHSCREEN_CY8CTMG110 tristate "cy8ctmg110 touchscreen" depends on I2C diff --git a/drivers/input/touchscreen/Makefile b/drivers/input/touchscreen/Makefile index f1bc8a416824..99b353c4e9ae 100644 --- a/drivers/input/touchscreen/Makefile +++ b/drivers/input/touchscreen/Makefile @@ -14,6 +14,7 @@ obj-$(CONFIG_TOUCHSCREEN_AD7879_SPI) += ad7879-spi.o obj-$(CONFIG_TOUCHSCREEN_ADS7846) += ads7846.o obj-$(CONFIG_TOUCHSCREEN_ATMEL_TSADCC) += atmel_tsadcc.o obj-$(CONFIG_TOUCHSCREEN_BITSY) += h3600_ts_input.o +obj-$(CONFIG_TOUCHSCREEN_BU21013) += bu21013_ts.o obj-$(CONFIG_TOUCHSCREEN_CY8CTMG110) += cy8ctmg110_ts.o obj-$(CONFIG_TOUCHSCREEN_DA9034) += da9034-ts.o obj-$(CONFIG_TOUCHSCREEN_DYNAPRO) += dynapro.o diff --git a/drivers/input/touchscreen/bu21013_ts.c b/drivers/input/touchscreen/bu21013_ts.c new file mode 100644 index 000000000000..ccde58602563 --- /dev/null +++ b/drivers/input/touchscreen/bu21013_ts.c @@ -0,0 +1,648 @@ +/* + * Copyright (C) ST-Ericsson SA 2010 + * Author: Naveen Kumar G for ST-Ericsson + * License terms:GNU General Public License (GPL) version 2 + */ + +#include +#include +#include +#include +#include +#include +#include +#include + +#define PEN_DOWN_INTR 0 +#define MAX_FINGERS 2 +#define RESET_DELAY 30 +#define PENUP_TIMEOUT (10) +#define DELTA_MIN 16 +#define MASK_BITS 0x03 +#define SHIFT_8 8 +#define SHIFT_2 2 +#define LENGTH_OF_BUFFER 11 +#define I2C_RETRY_COUNT 5 + +#define BU21013_SENSORS_BTN_0_7_REG 0x70 +#define BU21013_SENSORS_BTN_8_15_REG 0x71 +#define BU21013_SENSORS_BTN_16_23_REG 0x72 +#define BU21013_X1_POS_MSB_REG 0x73 +#define BU21013_X1_POS_LSB_REG 0x74 +#define BU21013_Y1_POS_MSB_REG 0x75 +#define BU21013_Y1_POS_LSB_REG 0x76 +#define BU21013_X2_POS_MSB_REG 0x77 +#define BU21013_X2_POS_LSB_REG 0x78 +#define BU21013_Y2_POS_MSB_REG 0x79 +#define BU21013_Y2_POS_LSB_REG 0x7A +#define BU21013_INT_CLR_REG 0xE8 +#define BU21013_INT_MODE_REG 0xE9 +#define BU21013_GAIN_REG 0xEA +#define BU21013_OFFSET_MODE_REG 0xEB +#define BU21013_XY_EDGE_REG 0xEC +#define BU21013_RESET_REG 0xED +#define BU21013_CALIB_REG 0xEE +#define BU21013_DONE_REG 0xEF +#define BU21013_SENSOR_0_7_REG 0xF0 +#define BU21013_SENSOR_8_15_REG 0xF1 +#define BU21013_SENSOR_16_23_REG 0xF2 +#define BU21013_POS_MODE1_REG 0xF3 +#define BU21013_POS_MODE2_REG 0xF4 +#define BU21013_CLK_MODE_REG 0xF5 +#define BU21013_IDLE_REG 0xFA +#define BU21013_FILTER_REG 0xFB +#define BU21013_TH_ON_REG 0xFC +#define BU21013_TH_OFF_REG 0xFD + + +#define BU21013_RESET_ENABLE 0x01 + +#define BU21013_SENSORS_EN_0_7 0x3F +#define BU21013_SENSORS_EN_8_15 0xFC +#define BU21013_SENSORS_EN_16_23 0x1F + +#define BU21013_POS_MODE1_0 0x02 +#define BU21013_POS_MODE1_1 0x04 +#define BU21013_POS_MODE1_2 0x08 + +#define BU21013_POS_MODE2_ZERO 0x01 +#define BU21013_POS_MODE2_AVG1 0x02 +#define BU21013_POS_MODE2_AVG2 0x04 +#define BU21013_POS_MODE2_EN_XY 0x08 +#define BU21013_POS_MODE2_EN_RAW 0x10 +#define BU21013_POS_MODE2_MULTI 0x80 + +#define BU21013_CLK_MODE_DIV 0x01 +#define BU21013_CLK_MODE_EXT 0x02 +#define BU21013_CLK_MODE_CALIB 0x80 + +#define BU21013_IDLET_0 0x01 +#define BU21013_IDLET_1 0x02 +#define BU21013_IDLET_2 0x04 +#define BU21013_IDLET_3 0x08 +#define BU21013_IDLE_INTERMIT_EN 0x10 + +#define BU21013_DELTA_0_6 0x7F +#define BU21013_FILTER_EN 0x80 + +#define BU21013_INT_MODE_LEVEL 0x00 +#define BU21013_INT_MODE_EDGE 0x01 + +#define BU21013_GAIN_0 0x01 +#define BU21013_GAIN_1 0x02 +#define BU21013_GAIN_2 0x04 + +#define BU21013_OFFSET_MODE_DEFAULT 0x00 +#define BU21013_OFFSET_MODE_MOVE 0x01 +#define BU21013_OFFSET_MODE_DISABLE 0x02 + +#define BU21013_TH_ON_0 0x01 +#define BU21013_TH_ON_1 0x02 +#define BU21013_TH_ON_2 0x04 +#define BU21013_TH_ON_3 0x08 +#define BU21013_TH_ON_4 0x10 +#define BU21013_TH_ON_5 0x20 +#define BU21013_TH_ON_6 0x40 +#define BU21013_TH_ON_7 0x80 +#define BU21013_TH_ON_MAX 0xFF + +#define BU21013_TH_OFF_0 0x01 +#define BU21013_TH_OFF_1 0x02 +#define BU21013_TH_OFF_2 0x04 +#define BU21013_TH_OFF_3 0x08 +#define BU21013_TH_OFF_4 0x10 +#define BU21013_TH_OFF_5 0x20 +#define BU21013_TH_OFF_6 0x40 +#define BU21013_TH_OFF_7 0x80 +#define BU21013_TH_OFF_MAX 0xFF + +#define BU21013_X_EDGE_0 0x01 +#define BU21013_X_EDGE_1 0x02 +#define BU21013_X_EDGE_2 0x04 +#define BU21013_X_EDGE_3 0x08 +#define BU21013_Y_EDGE_0 0x10 +#define BU21013_Y_EDGE_1 0x20 +#define BU21013_Y_EDGE_2 0x40 +#define BU21013_Y_EDGE_3 0x80 + +#define BU21013_DONE 0x01 +#define BU21013_NUMBER_OF_X_SENSORS (6) +#define BU21013_NUMBER_OF_Y_SENSORS (11) + +#define DRIVER_TP "bu21013_tp" + +/** + * struct bu21013_ts_data - touch panel data structure + * @client: pointer to the i2c client + * @wait: variable to wait_queue_head_t structure + * @touch_stopped: touch stop flag + * @chip: pointer to the touch panel controller + * @in_dev: pointer to the input device structure + * @intr_pin: interrupt pin value + * + * Touch panel device data structure + */ +struct bu21013_ts_data { + struct i2c_client *client; + wait_queue_head_t wait; + bool touch_stopped; + const struct bu21013_platform_device *chip; + struct input_dev *in_dev; + unsigned int intr_pin; +}; + +/** + * bu21013_read_block_data(): read the touch co-ordinates + * @data: bu21013_ts_data structure pointer + * @buf: byte pointer + * + * Read the touch co-ordinates using i2c read block into buffer + * and returns integer. + */ +static int bu21013_read_block_data(struct bu21013_ts_data *data, u8 *buf) +{ + int ret, i; + + for (i = 0; i < I2C_RETRY_COUNT; i++) { + ret = i2c_smbus_read_i2c_block_data + (data->client, BU21013_SENSORS_BTN_0_7_REG, + LENGTH_OF_BUFFER, buf); + if (ret == LENGTH_OF_BUFFER) + return 0; + } + return -EINVAL; +} + +/** + * bu21013_do_touch_report(): Get the touch co-ordinates + * @data: bu21013_ts_data structure pointer + * + * Get the touch co-ordinates from touch sensor registers and writes + * into device structure and returns integer. + */ +static int bu21013_do_touch_report(struct bu21013_ts_data *data) +{ + u8 buf[LENGTH_OF_BUFFER]; + unsigned int pos_x[2], pos_y[2]; + bool has_x_sensors, has_y_sensors; + int finger_down_count = 0; + int i; + + if (data == NULL) + return -EINVAL; + + if (bu21013_read_block_data(data, buf) < 0) + return -EINVAL; + + has_x_sensors = hweight32(buf[0] & BU21013_SENSORS_EN_0_7); + has_y_sensors = hweight32(((buf[1] & BU21013_SENSORS_EN_8_15) | + ((buf[2] & BU21013_SENSORS_EN_16_23) << SHIFT_8)) >> SHIFT_2); + if (!has_x_sensors || !has_y_sensors) + return 0; + + for (i = 0; i < MAX_FINGERS; i++) { + const u8 *p = &buf[4 * i + 3]; + unsigned int x = p[0] << SHIFT_2 | (p[1] & MASK_BITS); + unsigned int y = p[2] << SHIFT_2 | (p[3] & MASK_BITS); + if (x == 0 || y == 0) + continue; + pos_x[finger_down_count] = x; + pos_y[finger_down_count] = y; + finger_down_count++; + } + + if (finger_down_count) { + if (finger_down_count == 2 && + (abs(pos_x[0] - pos_x[1]) < DELTA_MIN || + abs(pos_y[0] - pos_y[1]) < DELTA_MIN)) { + return 0; + } + + for (i = 0; i < finger_down_count; i++) { + if (data->chip->x_flip) + pos_x[i] = data->chip->touch_x_max - pos_x[i]; + if (data->chip->y_flip) + pos_y[i] = data->chip->touch_y_max - pos_y[i]; + + input_report_abs(data->in_dev, + ABS_MT_POSITION_X, pos_x[i]); + input_report_abs(data->in_dev, + ABS_MT_POSITION_Y, pos_y[i]); + input_mt_sync(data->in_dev); + } + } else + input_mt_sync(data->in_dev); + + input_sync(data->in_dev); + + return 0; +} +/** + * bu21013_gpio_irq() - gpio thread function for touch interrupt + * @irq: irq value + * @device_data: void pointer + * + * This gpio thread function for touch interrupt + * and returns irqreturn_t. + */ +static irqreturn_t bu21013_gpio_irq(int irq, void *device_data) +{ + struct bu21013_ts_data *data = device_data; + struct i2c_client *i2c = data->client; + int retval; + + do { + retval = bu21013_do_touch_report(data); + if (retval < 0) { + dev_err(&i2c->dev, "bu21013_do_touch_report failed\n"); + return IRQ_NONE; + } + + data->intr_pin = data->chip->irq_read_val(); + if (data->intr_pin == PEN_DOWN_INTR) + wait_event_timeout(data->wait, data->touch_stopped, + msecs_to_jiffies(2)); + } while (!data->intr_pin && !data->touch_stopped); + + return IRQ_HANDLED; +} + +/** + * bu21013_init_chip() - power on sequence for the bu21013 controller + * @data: device structure pointer + * + * This function is used to power on + * the bu21013 controller and returns integer. + */ +static int bu21013_init_chip(struct bu21013_ts_data *data) +{ + int retval; + struct i2c_client *i2c = data->client; + + retval = i2c_smbus_write_byte_data(i2c, BU21013_RESET_REG, + BU21013_RESET_ENABLE); + if (retval < 0) { + dev_err(&i2c->dev, "BU21013_RESET reg write failed\n"); + return retval; + } + msleep(RESET_DELAY); + + retval = i2c_smbus_write_byte_data(i2c, BU21013_SENSOR_0_7_REG, + BU21013_SENSORS_EN_0_7); + if (retval < 0) { + dev_err(&i2c->dev, "BU21013_SENSOR_0_7 reg write failed\n"); + return retval; + } + + retval = i2c_smbus_write_byte_data(i2c, BU21013_SENSOR_8_15_REG, + BU21013_SENSORS_EN_8_15); + if (retval < 0) { + dev_err(&i2c->dev, "BU21013_SENSOR_8_15 reg write failed\n"); + return retval; + } + + retval = i2c_smbus_write_byte_data(i2c, BU21013_SENSOR_16_23_REG, + BU21013_SENSORS_EN_16_23); + if (retval < 0) { + dev_err(&i2c->dev, "BU21013_SENSOR_16_23 reg write failed\n"); + return retval; + } + + retval = i2c_smbus_write_byte_data(i2c, BU21013_POS_MODE1_REG, + (BU21013_POS_MODE1_0 | BU21013_POS_MODE1_1)); + if (retval < 0) { + dev_err(&i2c->dev, "BU21013_POS_MODE1 reg write failed\n"); + return retval; + } + + retval = i2c_smbus_write_byte_data(i2c, BU21013_POS_MODE2_REG, + (BU21013_POS_MODE2_ZERO | BU21013_POS_MODE2_AVG1 | + BU21013_POS_MODE2_AVG2 | BU21013_POS_MODE2_EN_RAW | + BU21013_POS_MODE2_MULTI)); + if (retval < 0) { + dev_err(&i2c->dev, "BU21013_POS_MODE2 reg write failed\n"); + return retval; + } + + if (data->chip->ext_clk) + retval = i2c_smbus_write_byte_data(i2c, BU21013_CLK_MODE_REG, + (BU21013_CLK_MODE_EXT | BU21013_CLK_MODE_CALIB)); + else + retval = i2c_smbus_write_byte_data(i2c, BU21013_CLK_MODE_REG, + (BU21013_CLK_MODE_DIV | BU21013_CLK_MODE_CALIB)); + if (retval < 0) { + dev_err(&i2c->dev, "BU21013_CLK_MODE reg write failed\n"); + return retval; + } + + retval = i2c_smbus_write_byte_data(i2c, BU21013_IDLE_REG, + (BU21013_IDLET_0 | BU21013_IDLE_INTERMIT_EN)); + if (retval < 0) { + dev_err(&i2c->dev, "BU21013_IDLE reg write failed\n"); + return retval; + } + + retval = i2c_smbus_write_byte_data(i2c, BU21013_INT_MODE_REG, + BU21013_INT_MODE_LEVEL); + if (retval < 0) { + dev_err(&i2c->dev, "BU21013_INT_MODE reg write failed\n"); + return retval; + } + + retval = i2c_smbus_write_byte_data(i2c, BU21013_FILTER_REG, + (BU21013_DELTA_0_6 | + BU21013_FILTER_EN)); + if (retval < 0) { + dev_err(&i2c->dev, "BU21013_FILTER reg write failed\n"); + return retval; + } + + retval = i2c_smbus_write_byte_data(i2c, BU21013_TH_ON_REG, + BU21013_TH_ON_5); + if (retval < 0) { + dev_err(&i2c->dev, "BU21013_TH_ON reg write failed\n"); + return retval; + } + + retval = i2c_smbus_write_byte_data(i2c, BU21013_TH_OFF_REG, + BU21013_TH_OFF_4 || BU21013_TH_OFF_3); + if (retval < 0) { + dev_err(&i2c->dev, "BU21013_TH_OFF reg write failed\n"); + return retval; + } + + retval = i2c_smbus_write_byte_data(i2c, BU21013_GAIN_REG, + (BU21013_GAIN_0 | BU21013_GAIN_1)); + if (retval < 0) { + dev_err(&i2c->dev, "BU21013_GAIN reg write failed\n"); + return retval; + } + + retval = i2c_smbus_write_byte_data(i2c, BU21013_OFFSET_MODE_REG, + BU21013_OFFSET_MODE_DEFAULT); + if (retval < 0) { + dev_err(&i2c->dev, "BU21013_OFFSET_MODE reg write failed\n"); + return retval; + } + + retval = i2c_smbus_write_byte_data(i2c, BU21013_XY_EDGE_REG, + (BU21013_X_EDGE_0 | BU21013_X_EDGE_2 | + BU21013_Y_EDGE_1 | BU21013_Y_EDGE_3)); + if (retval < 0) { + dev_err(&i2c->dev, "BU21013_XY_EDGE reg write failed\n"); + return retval; + } + + retval = i2c_smbus_write_byte_data(i2c, BU21013_DONE_REG, + BU21013_DONE); + if (retval < 0) { + dev_err(&i2c->dev, "BU21013_REG_DONE reg write failed\n"); + return retval; + } + + return 0; +} + +/** + * bu21013_free_irq() - frees IRQ registered for touchscreen + * @bu21013_data: device structure pointer + * + * This function signals interrupt thread to stop processing and + * frees interrupt. + */ +static void bu21013_free_irq(struct bu21013_ts_data *bu21013_data) +{ + bu21013_data->touch_stopped = true; + wake_up(&bu21013_data->wait); + free_irq(bu21013_data->chip->irq, bu21013_data); +} + +/** + * bu21013_probe() - initializes the i2c-client touchscreen driver + * @client: i2c client structure pointer + * @id: i2c device id pointer + * + * This function used to initializes the i2c-client touchscreen + * driver and returns integer. + */ +static int __devinit bu21013_probe(struct i2c_client *client, + const struct i2c_device_id *id) +{ + struct bu21013_ts_data *bu21013_data; + struct input_dev *in_dev; + const struct bu21013_platform_device *pdata = + client->dev.platform_data; + int error; + + if (!i2c_check_functionality(client->adapter, + I2C_FUNC_SMBUS_BYTE_DATA)) { + dev_err(&client->dev, "i2c smbus byte data not supported\n"); + return -EIO; + } + + if (!pdata) { + dev_err(&client->dev, "platform data not defined\n"); + return -EINVAL; + } + + bu21013_data = kzalloc(sizeof(struct bu21013_ts_data), GFP_KERNEL); + in_dev = input_allocate_device(); + if (!bu21013_data || !in_dev) { + dev_err(&client->dev, "device memory alloc failed\n"); + error = -ENOMEM; + goto err_free_mem; + } + + bu21013_data->in_dev = in_dev; + bu21013_data->chip = pdata; + bu21013_data->client = client; + bu21013_data->touch_stopped = false; + init_waitqueue_head(&bu21013_data->wait); + + /* configure the gpio pins */ + if (pdata->cs_en) { + error = pdata->cs_en(pdata->cs_pin); + if (error < 0) { + dev_err(&client->dev, "chip init failed\n"); + goto err_free_mem; + } + } + + /* configure the touch panel controller */ + error = bu21013_init_chip(bu21013_data); + if (error) { + dev_err(&client->dev, "error in bu21013 config\n"); + goto err_cs_disable; + } + + /* register the device to input subsystem */ + in_dev->name = DRIVER_TP; + in_dev->id.bustype = BUS_I2C; + in_dev->dev.parent = &client->dev; + + __set_bit(EV_SYN, in_dev->evbit); + __set_bit(EV_KEY, in_dev->evbit); + __set_bit(EV_ABS, in_dev->evbit); + + input_set_abs_params(in_dev, ABS_MT_POSITION_X, 0, + pdata->x_max_res, 0, 0); + input_set_abs_params(in_dev, ABS_MT_POSITION_Y, 0, + pdata->y_max_res, 0, 0); + input_set_drvdata(in_dev, bu21013_data); + + error = request_threaded_irq(pdata->irq, NULL, bu21013_gpio_irq, + IRQF_TRIGGER_FALLING | IRQF_SHARED, + DRIVER_TP, bu21013_data); + if (error) { + dev_err(&client->dev, "request irq %d failed\n", pdata->irq); + goto err_cs_disable; + } + + error = input_register_device(in_dev); + if (error) { + dev_err(&client->dev, "failed to register input device\n"); + goto err_free_irq; + } + + device_init_wakeup(&client->dev, pdata->wakeup); + i2c_set_clientdata(client, bu21013_data); + + return 0; + +err_free_irq: + bu21013_free_irq(bu21013_data); +err_cs_disable: + pdata->cs_dis(pdata->cs_pin); +err_free_mem: + input_free_device(bu21013_data->in_dev); + kfree(bu21013_data); + + return error; +} +/** + * bu21013_remove() - removes the i2c-client touchscreen driver + * @client: i2c client structure pointer + * + * This function uses to remove the i2c-client + * touchscreen driver and returns integer. + */ +static int __devexit bu21013_remove(struct i2c_client *client) +{ + struct bu21013_ts_data *bu21013_data = i2c_get_clientdata(client); + + bu21013_free_irq(bu21013_data); + + bu21013_data->chip->cs_dis(bu21013_data->chip->cs_pin); + + input_unregister_device(bu21013_data->in_dev); + kfree(bu21013_data); + + device_init_wakeup(&client->dev, false); + + return 0; +} + +#ifdef CONFIG_PM +/** + * bu21013_suspend() - suspend the touch screen controller + * @dev: pointer to device structure + * + * This function is used to suspend the + * touch panel controller and returns integer + */ +static int bu21013_suspend(struct device *dev) +{ + struct bu21013_ts_data *bu21013_data = dev_get_drvdata(dev); + struct i2c_client *client = bu21013_data->client; + + bu21013_data->touch_stopped = true; + if (device_may_wakeup(&client->dev)) + enable_irq_wake(bu21013_data->chip->irq); + else + disable_irq(bu21013_data->chip->irq); + + return 0; +} + +/** + * bu21013_resume() - resume the touch screen controller + * @dev: pointer to device structure + * + * This function is used to resume the touch panel + * controller and returns integer. + */ +static int bu21013_resume(struct device *dev) +{ + struct bu21013_ts_data *bu21013_data = dev_get_drvdata(dev); + struct i2c_client *client = bu21013_data->client; + int retval; + + retval = bu21013_init_chip(bu21013_data); + if (retval < 0) { + dev_err(&client->dev, "bu21013 controller config failed\n"); + return retval; + } + + bu21013_data->touch_stopped = false; + + if (device_may_wakeup(&client->dev)) + disable_irq_wake(bu21013_data->chip->irq); + else + enable_irq(bu21013_data->chip->irq); + + return 0; +} + +static const struct dev_pm_ops bu21013_dev_pm_ops = { + .suspend = bu21013_suspend, + .resume = bu21013_resume, +}; +#endif + +static const struct i2c_device_id bu21013_id[] = { + { DRIVER_TP, 0 }, + { } +}; +MODULE_DEVICE_TABLE(i2c, bu21013_id); + +static struct i2c_driver bu21013_driver = { + .driver = { + .name = DRIVER_TP, + .owner = THIS_MODULE, +#ifdef CONFIG_PM + .pm = &bu21013_dev_pm_ops, +#endif + }, + .probe = bu21013_probe, + .remove = __devexit_p(bu21013_remove), + .id_table = bu21013_id, +}; + +/** + * bu21013_init() - initializes the bu21013 touchscreen driver + * + * This function used to initializes the bu21013 + * touchscreen driver and returns integer. + */ +static int __init bu21013_init(void) +{ + return i2c_add_driver(&bu21013_driver); +} + +/** + * bu21013_exit() - de-initializes the bu21013 touchscreen driver + * + * This function uses to de-initializes the bu21013 + * touchscreen driver and returns none. + */ +static void __exit bu21013_exit(void) +{ + i2c_del_driver(&bu21013_driver); +} + +module_init(bu21013_init); +module_exit(bu21013_exit); + +MODULE_LICENSE("GPL v2"); +MODULE_AUTHOR("Naveen Kumar G "); +MODULE_DESCRIPTION("bu21013 touch screen controller driver"); diff --git a/include/linux/input/bu21013.h b/include/linux/input/bu21013.h new file mode 100644 index 000000000000..e470d387dd49 --- /dev/null +++ b/include/linux/input/bu21013.h @@ -0,0 +1,44 @@ +/* + * Copyright (C) ST-Ericsson SA 2010 + * Author: Naveen Kumar G for ST-Ericsson + * License terms:GNU General Public License (GPL) version 2 + */ + +#ifndef _BU21013_H +#define _BU21013_H + +/** + * struct bu21013_platform_device - Handle the platform data + * @cs_en: pointer to the cs enable function + * @cs_dis: pointer to the cs disable function + * @irq_read_val: pointer to read the pen irq value function + * @x_max_res: xmax resolution + * @y_max_res: ymax resolution + * @touch_x_max: touch x max + * @touch_y_max: touch y max + * @cs_pin: chip select pin + * @irq: irq pin + * @ext_clk: external clock flag + * @x_flip: x flip flag + * @y_flip: y flip flag + * @wakeup: wakeup flag + * + * This is used to handle the platform data + */ +struct bu21013_platform_device { + int (*cs_en)(int reset_pin); + int (*cs_dis)(int reset_pin); + int (*irq_read_val)(void); + int x_max_res; + int y_max_res; + int touch_x_max; + int touch_y_max; + unsigned int cs_pin; + unsigned int irq; + bool ext_clk; + bool x_flip; + bool y_flip; + bool wakeup; +}; + +#endif -- cgit v1.2.3 From b029ffafe89cf4b97cf39e0225a5205cbbf9e02f Mon Sep 17 00:00:00 2001 From: Hemanth V Date: Tue, 30 Nov 2010 23:03:54 -0800 Subject: Input: add CMA3000 accelerometer driver Add support for CMA3000 Tri-axis accelerometer, which supports Motion detect, Measurement and Free fall modes. CMA3000 supports both I2C/SPI bus for communication, currently the driver supports I2C based communication. Signed-off-by: Hemanth V Reviewed-by: Jonathan Cameron Reviewed-by: Sergio Aguirre Reviewed-by: Shubhrajyoti Signed-off-by: Dmitry Torokhov --- Documentation/input/cma3000_d0x.txt | 115 ++++++++++ drivers/input/misc/Kconfig | 24 +++ drivers/input/misc/Makefile | 2 + drivers/input/misc/cma3000_d0x.c | 398 +++++++++++++++++++++++++++++++++++ drivers/input/misc/cma3000_d0x.h | 42 ++++ drivers/input/misc/cma3000_d0x_i2c.c | 141 +++++++++++++ include/linux/input/cma3000.h | 59 ++++++ 7 files changed, 781 insertions(+) create mode 100644 Documentation/input/cma3000_d0x.txt create mode 100644 drivers/input/misc/cma3000_d0x.c create mode 100644 drivers/input/misc/cma3000_d0x.h create mode 100644 drivers/input/misc/cma3000_d0x_i2c.c create mode 100644 include/linux/input/cma3000.h (limited to 'include/linux/input') diff --git a/Documentation/input/cma3000_d0x.txt b/Documentation/input/cma3000_d0x.txt new file mode 100644 index 000000000000..29d088db4afd --- /dev/null +++ b/Documentation/input/cma3000_d0x.txt @@ -0,0 +1,115 @@ +Kernel driver for CMA3000-D0x +============================ + +Supported chips: +* VTI CMA3000-D0x +Datasheet: + CMA3000-D0X Product Family Specification 8281000A.02.pdf + + +Author: Hemanth V + + +Description +----------- +CMA3000 Tri-axis accelerometer supports Motion detect, Measurement and +Free fall modes. + +Motion Detect Mode: Its the low power mode where interrupts are generated only +when motion exceeds the defined thresholds. + +Measurement Mode: This mode is used to read the acceleration data on X,Y,Z +axis and supports 400, 100, 40 Hz sample frequency. + +Free fall Mode: This mode is intended to save system resources. + +Threshold values: Chip supports defining threshold values for above modes +which includes time and g value. Refer product specifications for more details. + +CMA3000 chip supports mutually exclusive I2C and SPI interfaces for +communication, currently the driver supports I2C based communication only. +Initial configuration for bus mode is set in non volatile memory and can later +be modified through bus interface command. + +Driver reports acceleration data through input subsystem. It generates ABS_MISC +event with value 1 when free fall is detected. + +Platform data need to be configured for initial default values. + +Platform Data +------------- +fuzz_x: Noise on X Axis + +fuzz_y: Noise on Y Axis + +fuzz_z: Noise on Z Axis + +g_range: G range in milli g i.e 2000 or 8000 + +mode: Default Operating mode + +mdthr: Motion detect g range threshold value + +mdfftmr: Motion detect and free fall time threshold value + +ffthr: Free fall g range threshold value + +Input Interface +-------------- +Input driver version is 1.0.0 +Input device ID: bus 0x18 vendor 0x0 product 0x0 version 0x0 +Input device name: "cma3000-accelerometer" +Supported events: + Event type 0 (Sync) + Event type 3 (Absolute) + Event code 0 (X) + Value 47 + Min -8000 + Max 8000 + Fuzz 200 + Event code 1 (Y) + Value -28 + Min -8000 + Max 8000 + Fuzz 200 + Event code 2 (Z) + Value 905 + Min -8000 + Max 8000 + Fuzz 200 + Event code 40 (Misc) + Value 0 + Min 0 + Max 1 + Event type 4 (Misc) + + +Register/Platform parameters Description +---------------------------------------- + +mode: + 0: power down mode + 1: 100 Hz Measurement mode + 2: 400 Hz Measurement mode + 3: 40 Hz Measurement mode + 4: Motion Detect mode (default) + 5: 100 Hz Free fall mode + 6: 40 Hz Free fall mode + 7: Power off mode + +grange: + 2000: 2000 mg or 2G Range + 8000: 8000 mg or 8G Range + +mdthr: + X: X * 71mg (8G Range) + X: X * 18mg (2G Range) + +mdfftmr: + X: (X & 0x70) * 100 ms (MDTMR) + (X & 0x0F) * 2.5 ms (FFTMR 400 Hz) + (X & 0x0F) * 10 ms (FFTMR 100 Hz) + +ffthr: + X: (X >> 2) * 18mg (2G Range) + X: (X & 0x0F) * 71 mg (8G Range) diff --git a/drivers/input/misc/Kconfig b/drivers/input/misc/Kconfig index b99b8cbde02f..f0d90172a65f 100644 --- a/drivers/input/misc/Kconfig +++ b/drivers/input/misc/Kconfig @@ -448,4 +448,28 @@ config INPUT_ADXL34X_SPI To compile this driver as a module, choose M here: the module will be called adxl34x-spi. +config INPUT_CMA3000 + tristate "VTI CMA3000 Tri-axis accelerometer" + help + Say Y here if you want to use VTI CMA3000_D0x Accelerometer + driver + + This driver currently only supports I2C interface to the + controller. Also select the I2C method. + + If unsure, say N + + To compile this driver as a module, choose M here: the + module will be called cma3000_d0x. + +config INPUT_CMA3000_I2C + tristate "Support I2C bus connection" + depends on INPUT_CMA3000 && I2C + help + Say Y here if you want to use VTI CMA3000_D0x Accelerometer + through I2C interface. + + To compile this driver as a module, choose M here: the + module will be called cma3000_d0x_i2c. + endif diff --git a/drivers/input/misc/Makefile b/drivers/input/misc/Makefile index 1fe1f6c8b737..35bcfe46555e 100644 --- a/drivers/input/misc/Makefile +++ b/drivers/input/misc/Makefile @@ -18,6 +18,8 @@ obj-$(CONFIG_INPUT_ATI_REMOTE2) += ati_remote2.o obj-$(CONFIG_INPUT_ATLAS_BTNS) += atlas_btns.o obj-$(CONFIG_INPUT_BFIN_ROTARY) += bfin_rotary.o obj-$(CONFIG_INPUT_CM109) += cm109.o +obj-$(CONFIG_INPUT_CMA3000) += cma3000_d0x.o +obj-$(CONFIG_INPUT_CMA3000_I2C) += cma3000_d0x_i2c.o obj-$(CONFIG_INPUT_COBALT_BTNS) += cobalt_btns.o obj-$(CONFIG_INPUT_DM355EVM) += dm355evm_keys.o obj-$(CONFIG_HP_SDC_RTC) += hp_sdc_rtc.o diff --git a/drivers/input/misc/cma3000_d0x.c b/drivers/input/misc/cma3000_d0x.c new file mode 100644 index 000000000000..1633b6342267 --- /dev/null +++ b/drivers/input/misc/cma3000_d0x.c @@ -0,0 +1,398 @@ +/* + * VTI CMA3000_D0x Accelerometer driver + * + * Copyright (C) 2010 Texas Instruments + * Author: Hemanth V + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License version 2 as published by + * the Free Software Foundation. + * + * This program is distributed in the hope that it will be useful, but WITHOUT + * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or + * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for + * more details. + * + * You should have received a copy of the GNU General Public License along with + * this program. If not, see . + */ + +#include +#include +#include +#include +#include +#include + +#include "cma3000_d0x.h" + +#define CMA3000_WHOAMI 0x00 +#define CMA3000_REVID 0x01 +#define CMA3000_CTRL 0x02 +#define CMA3000_STATUS 0x03 +#define CMA3000_RSTR 0x04 +#define CMA3000_INTSTATUS 0x05 +#define CMA3000_DOUTX 0x06 +#define CMA3000_DOUTY 0x07 +#define CMA3000_DOUTZ 0x08 +#define CMA3000_MDTHR 0x09 +#define CMA3000_MDFFTMR 0x0A +#define CMA3000_FFTHR 0x0B + +#define CMA3000_RANGE2G (1 << 7) +#define CMA3000_RANGE8G (0 << 7) +#define CMA3000_BUSI2C (0 << 4) +#define CMA3000_MODEMASK (7 << 1) +#define CMA3000_GRANGEMASK (1 << 7) + +#define CMA3000_STATUS_PERR 1 +#define CMA3000_INTSTATUS_FFDET (1 << 2) + +/* Settling time delay in ms */ +#define CMA3000_SETDELAY 30 + +/* Delay for clearing interrupt in us */ +#define CMA3000_INTDELAY 44 + + +/* + * Bit weights in mg for bit 0, other bits need + * multipy factor 2^n. Eight bit is the sign bit. + */ +#define BIT_TO_2G 18 +#define BIT_TO_8G 71 + +struct cma3000_accl_data { + const struct cma3000_bus_ops *bus_ops; + const struct cma3000_platform_data *pdata; + + struct device *dev; + struct input_dev *input_dev; + + int bit_to_mg; + int irq; + + int g_range; + u8 mode; + + struct mutex mutex; + bool opened; + bool suspended; +}; + +#define CMA3000_READ(data, reg, msg) \ + (data->bus_ops->read(data->dev, reg, msg)) +#define CMA3000_SET(data, reg, val, msg) \ + ((data)->bus_ops->write(data->dev, reg, val, msg)) + +/* + * Conversion for each of the eight modes to g, depending + * on G range i.e 2G or 8G. Some modes always operate in + * 8G. + */ + +static int mode_to_mg[8][2] = { + { 0, 0 }, + { BIT_TO_8G, BIT_TO_2G }, + { BIT_TO_8G, BIT_TO_2G }, + { BIT_TO_8G, BIT_TO_8G }, + { BIT_TO_8G, BIT_TO_8G }, + { BIT_TO_8G, BIT_TO_2G }, + { BIT_TO_8G, BIT_TO_2G }, + { 0, 0}, +}; + +static void decode_mg(struct cma3000_accl_data *data, int *datax, + int *datay, int *dataz) +{ + /* Data in 2's complement, convert to mg */ + *datax = ((s8)*datax) * data->bit_to_mg; + *datay = ((s8)*datay) * data->bit_to_mg; + *dataz = ((s8)*dataz) * data->bit_to_mg; +} + +static irqreturn_t cma3000_thread_irq(int irq, void *dev_id) +{ + struct cma3000_accl_data *data = dev_id; + int datax, datay, dataz; + u8 ctrl, mode, range, intr_status; + + intr_status = CMA3000_READ(data, CMA3000_INTSTATUS, "interrupt status"); + if (intr_status < 0) + return IRQ_NONE; + + /* Check if free fall is detected, report immediately */ + if (intr_status & CMA3000_INTSTATUS_FFDET) { + input_report_abs(data->input_dev, ABS_MISC, 1); + input_sync(data->input_dev); + } else { + input_report_abs(data->input_dev, ABS_MISC, 0); + } + + datax = CMA3000_READ(data, CMA3000_DOUTX, "X"); + datay = CMA3000_READ(data, CMA3000_DOUTY, "Y"); + dataz = CMA3000_READ(data, CMA3000_DOUTZ, "Z"); + + ctrl = CMA3000_READ(data, CMA3000_CTRL, "ctrl"); + mode = (ctrl & CMA3000_MODEMASK) >> 1; + range = (ctrl & CMA3000_GRANGEMASK) >> 7; + + data->bit_to_mg = mode_to_mg[mode][range]; + + /* Interrupt not for this device */ + if (data->bit_to_mg == 0) + return IRQ_NONE; + + /* Decode register values to milli g */ + decode_mg(data, &datax, &datay, &dataz); + + input_report_abs(data->input_dev, ABS_X, datax); + input_report_abs(data->input_dev, ABS_Y, datay); + input_report_abs(data->input_dev, ABS_Z, dataz); + input_sync(data->input_dev); + + return IRQ_HANDLED; +} + +static int cma3000_reset(struct cma3000_accl_data *data) +{ + int val; + + /* Reset sequence */ + CMA3000_SET(data, CMA3000_RSTR, 0x02, "Reset"); + CMA3000_SET(data, CMA3000_RSTR, 0x0A, "Reset"); + CMA3000_SET(data, CMA3000_RSTR, 0x04, "Reset"); + + /* Settling time delay */ + mdelay(10); + + val = CMA3000_READ(data, CMA3000_STATUS, "Status"); + if (val < 0) { + dev_err(data->dev, "Reset failed\n"); + return val; + } + + if (val & CMA3000_STATUS_PERR) { + dev_err(data->dev, "Parity Error\n"); + return -EIO; + } + + return 0; +} + +static int cma3000_poweron(struct cma3000_accl_data *data) +{ + const struct cma3000_platform_data *pdata = data->pdata; + u8 ctrl = 0; + int ret; + + if (data->g_range == CMARANGE_2G) { + ctrl = (data->mode << 1) | CMA3000_RANGE2G; + } else if (data->g_range == CMARANGE_8G) { + ctrl = (data->mode << 1) | CMA3000_RANGE8G; + } else { + dev_info(data->dev, + "Invalid G range specified, assuming 8G\n"); + ctrl = (data->mode << 1) | CMA3000_RANGE8G; + } + + ctrl |= data->bus_ops->ctrl_mod; + + CMA3000_SET(data, CMA3000_MDTHR, pdata->mdthr, + "Motion Detect Threshold"); + CMA3000_SET(data, CMA3000_MDFFTMR, pdata->mdfftmr, + "Time register"); + CMA3000_SET(data, CMA3000_FFTHR, pdata->ffthr, + "Free fall threshold"); + ret = CMA3000_SET(data, CMA3000_CTRL, ctrl, "Mode setting"); + if (ret < 0) + return -EIO; + + msleep(CMA3000_SETDELAY); + + return 0; +} + +static int cma3000_poweroff(struct cma3000_accl_data *data) +{ + int ret; + + ret = CMA3000_SET(data, CMA3000_CTRL, CMAMODE_POFF, "Mode setting"); + msleep(CMA3000_SETDELAY); + + return ret; +} + +static int cma3000_open(struct input_dev *input_dev) +{ + struct cma3000_accl_data *data = input_get_drvdata(input_dev); + + mutex_lock(&data->mutex); + + if (!data->suspended) + cma3000_poweron(data); + + data->opened = true; + + mutex_unlock(&data->mutex); + + return 0; +} + +static void cma3000_close(struct input_dev *input_dev) +{ + struct cma3000_accl_data *data = input_get_drvdata(input_dev); + + mutex_lock(&data->mutex); + + if (!data->suspended) + cma3000_poweroff(data); + + data->opened = false; + + mutex_unlock(&data->mutex); +} + +void cma3000_suspend(struct cma3000_accl_data *data) +{ + mutex_lock(&data->mutex); + + if (!data->suspended && data->opened) + cma3000_poweroff(data); + + data->suspended = true; + + mutex_unlock(&data->mutex); +} +EXPORT_SYMBOL(cma3000_suspend); + + +void cma3000_resume(struct cma3000_accl_data *data) +{ + mutex_lock(&data->mutex); + + if (data->suspended && data->opened) + cma3000_poweron(data); + + data->suspended = false; + + mutex_unlock(&data->mutex); +} +EXPORT_SYMBOL(cma3000_resume); + +struct cma3000_accl_data *cma3000_init(struct device *dev, int irq, + const struct cma3000_bus_ops *bops) +{ + const struct cma3000_platform_data *pdata = dev->platform_data; + struct cma3000_accl_data *data; + struct input_dev *input_dev; + int rev; + int error; + + if (!pdata) { + dev_err(dev, "platform data not found\n"); + error = -EINVAL; + goto err_out; + } + + + /* if no IRQ return error */ + if (irq == 0) { + error = -EINVAL; + goto err_out; + } + + data = kzalloc(sizeof(struct cma3000_accl_data), GFP_KERNEL); + input_dev = input_allocate_device(); + if (!data || !input_dev) { + error = -ENOMEM; + goto err_free_mem; + } + + data->dev = dev; + data->input_dev = input_dev; + data->bus_ops = bops; + data->pdata = pdata; + data->irq = irq; + mutex_init(&data->mutex); + + data->mode = pdata->mode; + if (data->mode < CMAMODE_DEFAULT || data->mode > CMAMODE_POFF) { + data->mode = CMAMODE_MOTDET; + dev_warn(dev, + "Invalid mode specified, assuming Motion Detect\n"); + } + + data->g_range = pdata->g_range; + if (data->g_range != CMARANGE_2G && data->g_range != CMARANGE_8G) { + dev_info(dev, + "Invalid G range specified, assuming 8G\n"); + data->g_range = CMARANGE_8G; + } + + input_dev->name = "cma3000-accelerometer"; + input_dev->id.bustype = bops->bustype; + input_dev->open = cma3000_open; + input_dev->close = cma3000_close; + + __set_bit(EV_ABS, input_dev->evbit); + + input_set_abs_params(input_dev, ABS_X, + -data->g_range, data->g_range, pdata->fuzz_x, 0); + input_set_abs_params(input_dev, ABS_Y, + -data->g_range, data->g_range, pdata->fuzz_y, 0); + input_set_abs_params(input_dev, ABS_Z, + -data->g_range, data->g_range, pdata->fuzz_z, 0); + input_set_abs_params(input_dev, ABS_MISC, 0, 1, 0, 0); + + input_set_drvdata(input_dev, data); + + error = cma3000_reset(data); + if (error) + goto err_free_mem; + + rev = CMA3000_READ(data, CMA3000_REVID, "Revid"); + if (rev < 0) { + error = rev; + goto err_free_mem; + } + + pr_info("CMA3000 Accelerometer: Revision %x\n", rev); + + error = request_threaded_irq(irq, NULL, cma3000_thread_irq, + pdata->irqflags | IRQF_ONESHOT, + "cma3000_d0x", data); + if (error) { + dev_err(dev, "request_threaded_irq failed\n"); + goto err_free_mem; + } + + error = input_register_device(data->input_dev); + if (error) { + dev_err(dev, "Unable to register input device\n"); + goto err_free_irq; + } + + return data; + +err_free_irq: + free_irq(irq, data); +err_free_mem: + input_free_device(input_dev); + kfree(data); +err_out: + return ERR_PTR(error); +} +EXPORT_SYMBOL(cma3000_init); + +void cma3000_exit(struct cma3000_accl_data *data) +{ + free_irq(data->irq, data); + input_unregister_device(data->input_dev); + kfree(data); +} +EXPORT_SYMBOL(cma3000_exit); + +MODULE_DESCRIPTION("CMA3000-D0x Accelerometer Driver"); +MODULE_LICENSE("GPL"); +MODULE_AUTHOR("Hemanth V "); diff --git a/drivers/input/misc/cma3000_d0x.h b/drivers/input/misc/cma3000_d0x.h new file mode 100644 index 000000000000..2304ce306e1c --- /dev/null +++ b/drivers/input/misc/cma3000_d0x.h @@ -0,0 +1,42 @@ +/* + * VTI CMA3000_D0x Accelerometer driver + * + * Copyright (C) 2010 Texas Instruments + * Author: Hemanth V + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License version 2 as published by + * the Free Software Foundation. + * + * This program is distributed in the hope that it will be useful, but WITHOUT + * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or + * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for + * more details. + * + * You should have received a copy of the GNU General Public License along with + * this program. If not, see . + */ + +#ifndef _INPUT_CMA3000_H +#define _INPUT_CMA3000_H + +#include +#include + +struct device; +struct cma3000_accl_data; + +struct cma3000_bus_ops { + u16 bustype; + u8 ctrl_mod; + int (*read)(struct device *, u8, char *); + int (*write)(struct device *, u8, u8, char *); +}; + +struct cma3000_accl_data *cma3000_init(struct device *dev, int irq, + const struct cma3000_bus_ops *bops); +void cma3000_exit(struct cma3000_accl_data *); +void cma3000_suspend(struct cma3000_accl_data *); +void cma3000_resume(struct cma3000_accl_data *); + +#endif diff --git a/drivers/input/misc/cma3000_d0x_i2c.c b/drivers/input/misc/cma3000_d0x_i2c.c new file mode 100644 index 000000000000..c52d278a7942 --- /dev/null +++ b/drivers/input/misc/cma3000_d0x_i2c.c @@ -0,0 +1,141 @@ +/* + * Implements I2C interface for VTI CMA300_D0x Accelerometer driver + * + * Copyright (C) 2010 Texas Instruments + * Author: Hemanth V + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License version 2 as published by + * the Free Software Foundation. + * + * This program is distributed in the hope that it will be useful, but WITHOUT + * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or + * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for + * more details. + * + * You should have received a copy of the GNU General Public License along with + * this program. If not, see . + */ + +#include +#include +#include +#include "cma3000_d0x.h" + +static int cma3000_i2c_set(struct device *dev, + u8 reg, u8 val, char *msg) +{ + struct i2c_client *client = to_i2c_client(dev); + int ret; + + ret = i2c_smbus_write_byte_data(client, reg, val); + if (ret < 0) + dev_err(&client->dev, + "%s failed (%s, %d)\n", __func__, msg, ret); + return ret; +} + +static int cma3000_i2c_read(struct device *dev, u8 reg, char *msg) +{ + struct i2c_client *client = to_i2c_client(dev); + int ret; + + ret = i2c_smbus_read_byte_data(client, reg); + if (ret < 0) + dev_err(&client->dev, + "%s failed (%s, %d)\n", __func__, msg, ret); + return ret; +} + +static const struct cma3000_bus_ops cma3000_i2c_bops = { + .bustype = BUS_I2C, +#define CMA3000_BUSI2C (0 << 4) + .ctrl_mod = CMA3000_BUSI2C, + .read = cma3000_i2c_read, + .write = cma3000_i2c_set, +}; + +static int __devinit cma3000_i2c_probe(struct i2c_client *client, + const struct i2c_device_id *id) +{ + struct cma3000_accl_data *data; + + data = cma3000_init(&client->dev, client->irq, &cma3000_i2c_bops); + if (IS_ERR(data)) + return PTR_ERR(data); + + i2c_set_clientdata(client, data); + + return 0; +} + +static int __devexit cma3000_i2c_remove(struct i2c_client *client) +{ + struct cma3000_accl_data *data = i2c_get_clientdata(client); + + cma3000_exit(data); + + return 0; +} + +#ifdef CONFIG_PM +static int cma3000_i2c_suspend(struct device *dev) +{ + struct i2c_client *client = to_i2c_client(dev); + struct cma3000_accl_data *data = i2c_get_clientdata(client); + + cma3000_suspend(data); + + return 0; +} + +static int cma3000_i2c_resume(struct device *dev) +{ + struct i2c_client *client = to_i2c_client(dev); + struct cma3000_accl_data *data = i2c_get_clientdata(client); + + cma3000_resume(data); + + return 0; +} + +static const struct dev_pm_ops cma3000_i2c_pm_ops = { + .suspend = cma3000_i2c_suspend, + .resume = cma3000_i2c_resume, +}; +#endif + +static const struct i2c_device_id cma3000_i2c_id[] = { + { "cma3000_d01", 0 }, + { }, +}; + +static struct i2c_driver cma3000_i2c_driver = { + .probe = cma3000_i2c_probe, + .remove = __devexit_p(cma3000_i2c_remove), + .id_table = cma3000_i2c_id, + .driver = { + .name = "cma3000_i2c_accl", + .owner = THIS_MODULE, +#ifdef CONFIG_PM + .pm = &cma3000_i2c_pm_ops, +#endif + }, +}; + +static int __init cma3000_i2c_init(void) +{ + return i2c_add_driver(&cma3000_i2c_driver); +} + +static void __exit cma3000_i2c_exit(void) +{ + i2c_del_driver(&cma3000_i2c_driver); +} + +module_init(cma3000_i2c_init); +module_exit(cma3000_i2c_exit); + +MODULE_DESCRIPTION("CMA3000-D0x Accelerometer I2C Driver"); +MODULE_LICENSE("GPL"); +MODULE_AUTHOR("Hemanth V "); diff --git a/include/linux/input/cma3000.h b/include/linux/input/cma3000.h new file mode 100644 index 000000000000..cbbaac27d311 --- /dev/null +++ b/include/linux/input/cma3000.h @@ -0,0 +1,59 @@ +/* + * VTI CMA3000_Dxx Accelerometer driver + * + * Copyright (C) 2010 Texas Instruments + * Author: Hemanth V + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License version 2 as published by + * the Free Software Foundation. + * + * This program is distributed in the hope that it will be useful, but WITHOUT + * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or + * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for + * more details. + * + * You should have received a copy of the GNU General Public License along with + * this program. If not, see . + */ + +#ifndef _LINUX_CMA3000_H +#define _LINUX_CMA3000_H + +#define CMAMODE_DEFAULT 0 +#define CMAMODE_MEAS100 1 +#define CMAMODE_MEAS400 2 +#define CMAMODE_MEAS40 3 +#define CMAMODE_MOTDET 4 +#define CMAMODE_FF100 5 +#define CMAMODE_FF400 6 +#define CMAMODE_POFF 7 + +#define CMARANGE_2G 2000 +#define CMARANGE_8G 8000 + +/** + * struct cma3000_i2c_platform_data - CMA3000 Platform data + * @fuzz_x: Noise on X Axis + * @fuzz_y: Noise on Y Axis + * @fuzz_z: Noise on Z Axis + * @g_range: G range in milli g i.e 2000 or 8000 + * @mode: Operating mode + * @mdthr: Motion detect threshold value + * @mdfftmr: Motion detect and free fall time value + * @ffthr: Free fall threshold value + */ + +struct cma3000_platform_data { + int fuzz_x; + int fuzz_y; + int fuzz_z; + int g_range; + uint8_t mode; + uint8_t mdthr; + uint8_t mdfftmr; + uint8_t ffthr; + unsigned long irqflags; +}; + +#endif -- cgit v1.2.3 From 47c78e891323513e9909729b44033e2c6649e2b7 Mon Sep 17 00:00:00 2001 From: Henrik Rydberg Date: Sat, 27 Nov 2010 09:16:48 +0100 Subject: input: mt: Break out slots handling In preparation for common code to handle a larger set of MT slots devices, move the slots handling over to a separate file. Signed-off-by: Henrik Rydberg --- drivers/hid/hid-3m-pct.c | 1 + drivers/input/Makefile | 2 +- drivers/input/input-mt.c | 58 +++++++++++++++++++++++++++++++++ drivers/input/input.c | 48 +-------------------------- drivers/input/misc/uinput.c | 1 + drivers/input/tablet/wacom_wac.c | 1 + drivers/input/touchscreen/wacom_w8001.c | 2 +- include/linux/input.h | 16 --------- include/linux/input/mt.h | 44 +++++++++++++++++++++++++ 9 files changed, 108 insertions(+), 65 deletions(-) create mode 100644 drivers/input/input-mt.c create mode 100644 include/linux/input/mt.h (limited to 'include/linux/input') diff --git a/drivers/hid/hid-3m-pct.c b/drivers/hid/hid-3m-pct.c index 02d8cd3b1b1b..18575a4e0d63 100644 --- a/drivers/hid/hid-3m-pct.c +++ b/drivers/hid/hid-3m-pct.c @@ -19,6 +19,7 @@ #include #include #include +#include MODULE_AUTHOR("Stephane Chatty "); MODULE_DESCRIPTION("3M PCT multitouch panels"); diff --git a/drivers/input/Makefile b/drivers/input/Makefile index 7ad212d31f99..569938b3cc04 100644 --- a/drivers/input/Makefile +++ b/drivers/input/Makefile @@ -5,7 +5,7 @@ # Each configuration option enables a list of files. obj-$(CONFIG_INPUT) += input-core.o -input-core-objs := input.o input-compat.o ff-core.o +input-core-objs := input.o input-compat.o ff-core.o input-mt.o obj-$(CONFIG_INPUT_FF_MEMLESS) += ff-memless.o obj-$(CONFIG_INPUT_POLLDEV) += input-polldev.o diff --git a/drivers/input/input-mt.c b/drivers/input/input-mt.c new file mode 100644 index 000000000000..463a4d7d54f2 --- /dev/null +++ b/drivers/input/input-mt.c @@ -0,0 +1,58 @@ +/* + * Input Multitouch Library + * + * Copyright (c) 2008-2010 Henrik Rydberg + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License version 2 as published by + * the Free Software Foundation. + */ + +#include +#include + +/** + * input_mt_create_slots() - create MT input slots + * @dev: input device supporting MT events and finger tracking + * @num_slots: number of slots used by the device + * + * This function allocates all necessary memory for MT slot handling in the + * input device, and adds ABS_MT_SLOT to the device capabilities. All slots + * are initially marked as unused by setting ABS_MT_TRACKING_ID to -1. + */ +int input_mt_create_slots(struct input_dev *dev, unsigned int num_slots) +{ + int i; + + if (!num_slots) + return 0; + + dev->mt = kcalloc(num_slots, sizeof(struct input_mt_slot), GFP_KERNEL); + if (!dev->mt) + return -ENOMEM; + + dev->mtsize = num_slots; + input_set_abs_params(dev, ABS_MT_SLOT, 0, num_slots - 1, 0, 0); + + /* Mark slots as 'unused' */ + for (i = 0; i < num_slots; i++) + input_mt_set_value(&dev->mt[i], ABS_MT_TRACKING_ID, -1); + + return 0; +} +EXPORT_SYMBOL(input_mt_create_slots); + +/** + * input_mt_destroy_slots() - frees the MT slots of the input device + * @dev: input device with allocated MT slots + * + * This function is only needed in error path as the input core will + * automatically free the MT slots when the device is destroyed. + */ +void input_mt_destroy_slots(struct input_dev *dev) +{ + kfree(dev->mt); + dev->mt = NULL; + dev->mtsize = 0; +} +EXPORT_SYMBOL(input_mt_destroy_slots); diff --git a/drivers/input/input.c b/drivers/input/input.c index d092ef9291da..37708d1d86ec 100644 --- a/drivers/input/input.c +++ b/drivers/input/input.c @@ -12,7 +12,7 @@ #include #include -#include +#include #include #include #include @@ -1690,52 +1690,6 @@ void input_free_device(struct input_dev *dev) } EXPORT_SYMBOL(input_free_device); -/** - * input_mt_create_slots() - create MT input slots - * @dev: input device supporting MT events and finger tracking - * @num_slots: number of slots used by the device - * - * This function allocates all necessary memory for MT slot handling in the - * input device, and adds ABS_MT_SLOT to the device capabilities. All slots - * are initially marked as unused by setting ABS_MT_TRACKING_ID to -1. - */ -int input_mt_create_slots(struct input_dev *dev, unsigned int num_slots) -{ - int i; - - if (!num_slots) - return 0; - - dev->mt = kcalloc(num_slots, sizeof(struct input_mt_slot), GFP_KERNEL); - if (!dev->mt) - return -ENOMEM; - - dev->mtsize = num_slots; - input_set_abs_params(dev, ABS_MT_SLOT, 0, num_slots - 1, 0, 0); - - /* Mark slots as 'unused' */ - for (i = 0; i < num_slots; i++) - dev->mt[i].abs[ABS_MT_TRACKING_ID - ABS_MT_FIRST] = -1; - - return 0; -} -EXPORT_SYMBOL(input_mt_create_slots); - -/** - * input_mt_destroy_slots() - frees the MT slots of the input device - * @dev: input device with allocated MT slots - * - * This function is only needed in error path as the input core will - * automatically free the MT slots when the device is destroyed. - */ -void input_mt_destroy_slots(struct input_dev *dev) -{ - kfree(dev->mt); - dev->mt = NULL; - dev->mtsize = 0; -} -EXPORT_SYMBOL(input_mt_destroy_slots); - /** * input_set_capability - mark device as capable of a certain event * @dev: device that is capable of emitting or accepting event diff --git a/drivers/input/misc/uinput.c b/drivers/input/misc/uinput.c index b9410784e6a1..8f374143190e 100644 --- a/drivers/input/misc/uinput.c +++ b/drivers/input/misc/uinput.c @@ -37,6 +37,7 @@ #include #include #include +#include #include "../input-compat.h" static int uinput_dev_event(struct input_dev *dev, unsigned int type, unsigned int code, int value) diff --git a/drivers/input/tablet/wacom_wac.c b/drivers/input/tablet/wacom_wac.c index b3252ef1e279..bde612c6d36d 100644 --- a/drivers/input/tablet/wacom_wac.c +++ b/drivers/input/tablet/wacom_wac.c @@ -14,6 +14,7 @@ #include "wacom_wac.h" #include "wacom.h" +#include static int wacom_penpartner_irq(struct wacom_wac *wacom) { diff --git a/drivers/input/touchscreen/wacom_w8001.c b/drivers/input/touchscreen/wacom_w8001.c index 9ae4c7b16ba7..5d4f50e52a28 100644 --- a/drivers/input/touchscreen/wacom_w8001.c +++ b/drivers/input/touchscreen/wacom_w8001.c @@ -15,7 +15,7 @@ #include #include #include -#include +#include #include #include #include diff --git a/include/linux/input.h b/include/linux/input.h index 51af441f3a21..99e2a52c0509 100644 --- a/include/linux/input.h +++ b/include/linux/input.h @@ -1082,14 +1082,6 @@ struct ff_effect { #include #include -/** - * struct input_mt_slot - represents the state of an input MT slot - * @abs: holds current values of ABS_MT axes for this slot - */ -struct input_mt_slot { - int abs[ABS_MT_LAST - ABS_MT_FIRST + 1]; -}; - /** * struct input_dev - represents an input device * @name: name of the device @@ -1461,11 +1453,6 @@ static inline void input_mt_sync(struct input_dev *dev) input_event(dev, EV_SYN, SYN_MT_REPORT, 0); } -static inline void input_mt_slot(struct input_dev *dev, int slot) -{ - input_event(dev, EV_ABS, ABS_MT_SLOT, slot); -} - void input_set_capability(struct input_dev *dev, unsigned int type, unsigned int code); /** @@ -1578,8 +1565,5 @@ int input_ff_erase(struct input_dev *dev, int effect_id, struct file *file); int input_ff_create_memless(struct input_dev *dev, void *data, int (*play_effect)(struct input_dev *, void *, struct ff_effect *)); -int input_mt_create_slots(struct input_dev *dev, unsigned int num_slots); -void input_mt_destroy_slots(struct input_dev *dev); - #endif #endif diff --git a/include/linux/input/mt.h b/include/linux/input/mt.h new file mode 100644 index 000000000000..4f5e9d0e2eae --- /dev/null +++ b/include/linux/input/mt.h @@ -0,0 +1,44 @@ +#ifndef _INPUT_MT_H +#define _INPUT_MT_H + +/* + * Input Multitouch Library + * + * Copyright (c) 2010 Henrik Rydberg + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License version 2 as published by + * the Free Software Foundation. + */ + +#include + +/** + * struct input_mt_slot - represents the state of an input MT slot + * @abs: holds current values of ABS_MT axes for this slot + */ +struct input_mt_slot { + int abs[ABS_MT_LAST - ABS_MT_FIRST + 1]; +}; + +static inline void input_mt_set_value(struct input_mt_slot *slot, + unsigned code, int value) +{ + slot->abs[code - ABS_MT_FIRST] = value; +} + +static inline int input_mt_get_value(const struct input_mt_slot *slot, + unsigned code) +{ + return slot->abs[code - ABS_MT_FIRST]; +} + +int input_mt_create_slots(struct input_dev *dev, unsigned int num_slots); +void input_mt_destroy_slots(struct input_dev *dev); + +static inline void input_mt_slot(struct input_dev *dev, int slot) +{ + input_event(dev, EV_ABS, ABS_MT_SLOT, slot); +} + +#endif -- cgit v1.2.3 From 8cde81001626c4c60b26ef2eb5fc522885ed9fd0 Mon Sep 17 00:00:00 2001 From: Henrik Rydberg Date: Sat, 27 Nov 2010 10:50:54 +0100 Subject: input: mt: Collect slots initialization code The MT slots devices all follow the same initialization pattern of creating slots and hinting about buffer size. Let drivers call an initialization function instead, and make sure it can be called repeatedly without side effects. Signed-off-by: Henrik Rydberg --- drivers/hid/hid-3m-pct.c | 5 +---- drivers/input/input-mt.c | 19 +++++++++++++------ drivers/input/misc/uinput.c | 3 +-- drivers/input/tablet/wacom_wac.c | 2 +- drivers/input/touchscreen/wacom_w8001.c | 2 +- include/linux/input/mt.h | 2 +- 6 files changed, 18 insertions(+), 15 deletions(-) (limited to 'include/linux/input') diff --git a/drivers/hid/hid-3m-pct.c b/drivers/hid/hid-3m-pct.c index 18575a4e0d63..ea475964d05a 100644 --- a/drivers/hid/hid-3m-pct.c +++ b/drivers/hid/hid-3m-pct.c @@ -29,7 +29,6 @@ MODULE_LICENSE("GPL"); #define MAX_SLOTS 60 #define MAX_TRKID USHRT_MAX -#define MAX_EVENTS 360 /* estimated signal-to-noise ratios */ #define SN_MOVE 2048 @@ -123,9 +122,7 @@ static int mmm_input_mapping(struct hid_device *hdev, struct hid_input *hi, EV_ABS, ABS_MT_TRACKING_ID); input_set_abs_params(hi->input, ABS_MT_TRACKING_ID, 0, MAX_TRKID, 0, 0); - if (!hi->input->mt) - input_mt_create_slots(hi->input, MAX_SLOTS); - input_set_events_per_packet(hi->input, MAX_EVENTS); + input_mt_init_slots(hi->input, MAX_SLOTS); return 1; } /* let hid-input decide for the others */ diff --git a/drivers/input/input-mt.c b/drivers/input/input-mt.c index 463a4d7d54f2..f400e47092c4 100644 --- a/drivers/input/input-mt.c +++ b/drivers/input/input-mt.c @@ -12,20 +12,25 @@ #include /** - * input_mt_create_slots() - create MT input slots + * input_mt_init_slots() - initialize MT input slots * @dev: input device supporting MT events and finger tracking * @num_slots: number of slots used by the device * - * This function allocates all necessary memory for MT slot handling in the - * input device, and adds ABS_MT_SLOT to the device capabilities. All slots - * are initially marked as unused by setting ABS_MT_TRACKING_ID to -1. + * This function allocates all necessary memory for MT slot handling + * in the input device, adds ABS_MT_SLOT to the device capabilities + * and sets up appropriate event buffers. All slots are initially + * marked as unused by setting ABS_MT_TRACKING_ID to -1. May be called + * repeatedly. Returns -EINVAL if attempting to reinitialize with a + * different number of slots. */ -int input_mt_create_slots(struct input_dev *dev, unsigned int num_slots) +int input_mt_init_slots(struct input_dev *dev, unsigned int num_slots) { int i; if (!num_slots) return 0; + if (dev->mt) + return dev->mtsize != num_slots ? -EINVAL : 0; dev->mt = kcalloc(num_slots, sizeof(struct input_mt_slot), GFP_KERNEL); if (!dev->mt) @@ -33,6 +38,7 @@ int input_mt_create_slots(struct input_dev *dev, unsigned int num_slots) dev->mtsize = num_slots; input_set_abs_params(dev, ABS_MT_SLOT, 0, num_slots - 1, 0, 0); + input_set_events_per_packet(dev, 6 * num_slots); /* Mark slots as 'unused' */ for (i = 0; i < num_slots; i++) @@ -40,7 +46,7 @@ int input_mt_create_slots(struct input_dev *dev, unsigned int num_slots) return 0; } -EXPORT_SYMBOL(input_mt_create_slots); +EXPORT_SYMBOL(input_mt_init_slots); /** * input_mt_destroy_slots() - frees the MT slots of the input device @@ -54,5 +60,6 @@ void input_mt_destroy_slots(struct input_dev *dev) kfree(dev->mt); dev->mt = NULL; dev->mtsize = 0; + dev->slot = 0; } EXPORT_SYMBOL(input_mt_destroy_slots); diff --git a/drivers/input/misc/uinput.c b/drivers/input/misc/uinput.c index 8f374143190e..bea89722c4e9 100644 --- a/drivers/input/misc/uinput.c +++ b/drivers/input/misc/uinput.c @@ -407,8 +407,7 @@ static int uinput_setup_device(struct uinput_device *udev, const char __user *bu goto exit; if (test_bit(ABS_MT_SLOT, dev->absbit)) { int nslot = input_abs_get_max(dev, ABS_MT_SLOT) + 1; - input_mt_create_slots(dev, nslot); - input_set_events_per_packet(dev, 6 * nslot); + input_mt_init_slots(dev, nslot); } else if (test_bit(ABS_MT_POSITION_X, dev->absbit)) { input_set_events_per_packet(dev, 60); } diff --git a/drivers/input/tablet/wacom_wac.c b/drivers/input/tablet/wacom_wac.c index bde612c6d36d..f26e2238f6ca 100644 --- a/drivers/input/tablet/wacom_wac.c +++ b/drivers/input/tablet/wacom_wac.c @@ -1273,7 +1273,7 @@ void wacom_setup_input_capabilities(struct input_dev *input_dev, __set_bit(BTN_TOOL_FINGER, input_dev->keybit); __set_bit(BTN_TOOL_DOUBLETAP, input_dev->keybit); - input_mt_create_slots(input_dev, 2); + input_mt_init_slots(input_dev, 2); input_set_abs_params(input_dev, ABS_MT_POSITION_X, 0, features->x_max, features->x_fuzz, 0); diff --git a/drivers/input/touchscreen/wacom_w8001.c b/drivers/input/touchscreen/wacom_w8001.c index 5d4f50e52a28..4a2e8cf4c8ef 100644 --- a/drivers/input/touchscreen/wacom_w8001.c +++ b/drivers/input/touchscreen/wacom_w8001.c @@ -318,7 +318,7 @@ static int w8001_setup(struct w8001 *w8001) case 5: w8001->pktlen = W8001_PKTLEN_TOUCH2FG; - input_mt_create_slots(dev, 2); + input_mt_init_slots(dev, 2); input_set_abs_params(dev, ABS_MT_TRACKING_ID, 0, MAX_TRACKING_ID, 0, 0); input_set_abs_params(dev, ABS_MT_POSITION_X, diff --git a/include/linux/input/mt.h b/include/linux/input/mt.h index 4f5e9d0e2eae..d7f6518e3222 100644 --- a/include/linux/input/mt.h +++ b/include/linux/input/mt.h @@ -33,7 +33,7 @@ static inline int input_mt_get_value(const struct input_mt_slot *slot, return slot->abs[code - ABS_MT_FIRST]; } -int input_mt_create_slots(struct input_dev *dev, unsigned int num_slots); +int input_mt_init_slots(struct input_dev *dev, unsigned int num_slots); void input_mt_destroy_slots(struct input_dev *dev); static inline void input_mt_slot(struct input_dev *dev, int slot) -- cgit v1.2.3 From c5f4dec1ceb6ab773bbbefbe64a7c990c7d6b17f Mon Sep 17 00:00:00 2001 From: Henrik Rydberg Date: Wed, 15 Dec 2010 13:50:34 +0100 Subject: input: mt: Move tracking and pointer emulation to input-mt The drivers using the type B protocol all report tracking information the same way. The contact id is semantically equivalent to ABS_MT_SLOT, and the handling of ABS_MT_TRACKING_ID only complicates the driver. The situation can be improved upon by providing a common pointer emulation code, thereby removing the need for the tracking id in the driver. This patch moves all tracking event handling over to the input core, simplifying both the existing drivers and the ones currently in preparation. Acked-by: Ping Cheng Acked-by: Jiri Kosina Signed-off-by: Henrik Rydberg --- drivers/hid/hid-3m-pct.c | 30 +-------- drivers/input/input-mt.c | 115 ++++++++++++++++++++++++++++++-- drivers/input/tablet/wacom_wac.c | 23 ++----- drivers/input/tablet/wacom_wac.h | 4 -- drivers/input/touchscreen/wacom_w8001.c | 21 ++---- include/linux/input.h | 3 + include/linux/input/mt.h | 13 ++++ 7 files changed, 138 insertions(+), 71 deletions(-) (limited to 'include/linux/input') diff --git a/drivers/hid/hid-3m-pct.c b/drivers/hid/hid-3m-pct.c index ea475964d05a..4fb7c7528d16 100644 --- a/drivers/hid/hid-3m-pct.c +++ b/drivers/hid/hid-3m-pct.c @@ -28,7 +28,6 @@ MODULE_LICENSE("GPL"); #include "hid-ids.h" #define MAX_SLOTS 60 -#define MAX_TRKID USHRT_MAX /* estimated signal-to-noise ratios */ #define SN_MOVE 2048 @@ -36,14 +35,11 @@ MODULE_LICENSE("GPL"); struct mmm_finger { __s32 x, y, w, h; - __u16 id; - bool prev_touch; bool touch, valid; }; struct mmm_data { struct mmm_finger f[MAX_SLOTS]; - __u16 id; __u8 curid; __u8 nexp, nreal; bool touch, valid; @@ -117,11 +113,6 @@ static int mmm_input_mapping(struct hid_device *hdev, struct hid_input *hi, 0, 1, 0, 0); return 1; case HID_DG_CONTACTID: - field->logical_maximum = MAX_TRKID; - hid_map_usage(hi, usage, bit, max, - EV_ABS, ABS_MT_TRACKING_ID); - input_set_abs_params(hi->input, ABS_MT_TRACKING_ID, - 0, MAX_TRKID, 0, 0); input_mt_init_slots(hi->input, MAX_SLOTS); return 1; } @@ -152,7 +143,6 @@ static int mmm_input_mapped(struct hid_device *hdev, struct hid_input *hi, */ static void mmm_filter_event(struct mmm_data *md, struct input_dev *input) { - struct mmm_finger *oldest = 0; int i; for (i = 0; i < MAX_SLOTS; ++i) { struct mmm_finger *f = &md->f[i]; @@ -161,6 +151,7 @@ static void mmm_filter_event(struct mmm_data *md, struct input_dev *input) continue; } input_mt_slot(input, i); + input_mt_report_slot_state(input, MT_TOOL_FINGER, f->touch); if (f->touch) { /* this finger is on the screen */ int wide = (f->w > f->h); @@ -168,33 +159,16 @@ static void mmm_filter_event(struct mmm_data *md, struct input_dev *input) int major = max(f->w, f->h) >> 1; int minor = min(f->w, f->h) >> 1; - if (!f->prev_touch) - f->id = md->id++; - input_event(input, EV_ABS, ABS_MT_TRACKING_ID, f->id); input_event(input, EV_ABS, ABS_MT_POSITION_X, f->x); input_event(input, EV_ABS, ABS_MT_POSITION_Y, f->y); input_event(input, EV_ABS, ABS_MT_ORIENTATION, wide); input_event(input, EV_ABS, ABS_MT_TOUCH_MAJOR, major); input_event(input, EV_ABS, ABS_MT_TOUCH_MINOR, minor); - /* touchscreen emulation: pick the oldest contact */ - if (!oldest || ((f->id - oldest->id) & (SHRT_MAX + 1))) - oldest = f; - } else { - /* this finger took off the screen */ - input_event(input, EV_ABS, ABS_MT_TRACKING_ID, -1); } - f->prev_touch = f->touch; f->valid = 0; } - /* touchscreen emulation */ - if (oldest) { - input_event(input, EV_KEY, BTN_TOUCH, 1); - input_event(input, EV_ABS, ABS_X, oldest->x); - input_event(input, EV_ABS, ABS_Y, oldest->y); - } else { - input_event(input, EV_KEY, BTN_TOUCH, 0); - } + input_mt_report_pointer_emulation(input, true); input_sync(input); } diff --git a/drivers/input/input-mt.c b/drivers/input/input-mt.c index f400e47092c4..c48c81f0308d 100644 --- a/drivers/input/input-mt.c +++ b/drivers/input/input-mt.c @@ -11,17 +11,18 @@ #include #include +#define TRKID_SGN ((TRKID_MAX + 1) >> 1) + /** * input_mt_init_slots() - initialize MT input slots * @dev: input device supporting MT events and finger tracking * @num_slots: number of slots used by the device * * This function allocates all necessary memory for MT slot handling - * in the input device, adds ABS_MT_SLOT to the device capabilities - * and sets up appropriate event buffers. All slots are initially - * marked as unused by setting ABS_MT_TRACKING_ID to -1. May be called - * repeatedly. Returns -EINVAL if attempting to reinitialize with a - * different number of slots. + * in the input device, prepares the ABS_MT_SLOT and + * ABS_MT_TRACKING_ID events for use and sets up appropriate buffers. + * May be called repeatedly. Returns -EINVAL if attempting to + * reinitialize with a different number of slots. */ int input_mt_init_slots(struct input_dev *dev, unsigned int num_slots) { @@ -38,6 +39,7 @@ int input_mt_init_slots(struct input_dev *dev, unsigned int num_slots) dev->mtsize = num_slots; input_set_abs_params(dev, ABS_MT_SLOT, 0, num_slots - 1, 0, 0); + input_set_abs_params(dev, ABS_MT_TRACKING_ID, 0, TRKID_MAX, 0, 0); input_set_events_per_packet(dev, 6 * num_slots); /* Mark slots as 'unused' */ @@ -61,5 +63,108 @@ void input_mt_destroy_slots(struct input_dev *dev) dev->mt = NULL; dev->mtsize = 0; dev->slot = 0; + dev->trkid = 0; } EXPORT_SYMBOL(input_mt_destroy_slots); + +/** + * input_mt_report_slot_state() - report contact state + * @dev: input device with allocated MT slots + * @tool_type: the tool type to use in this slot + * @active: true if contact is active, false otherwise + * + * Reports a contact via ABS_MT_TRACKING_ID, and optionally + * ABS_MT_TOOL_TYPE. If active is true and the slot is currently + * inactive, or if the tool type is changed, a new tracking id is + * assigned to the slot. The tool type is only reported if the + * corresponding absbit field is set. + */ +void input_mt_report_slot_state(struct input_dev *dev, + unsigned int tool_type, bool active) +{ + struct input_mt_slot *mt; + int id; + + if (!dev->mt || !active) { + input_event(dev, EV_ABS, ABS_MT_TRACKING_ID, -1); + return; + } + + mt = &dev->mt[dev->slot]; + id = input_mt_get_value(mt, ABS_MT_TRACKING_ID); + if (id < 0 || input_mt_get_value(mt, ABS_MT_TOOL_TYPE) != tool_type) + id = input_mt_new_trkid(dev); + + input_event(dev, EV_ABS, ABS_MT_TRACKING_ID, id); + input_event(dev, EV_ABS, ABS_MT_TOOL_TYPE, tool_type); +} +EXPORT_SYMBOL(input_mt_report_slot_state); + +/** + * input_mt_report_finger_count() - report contact count + * @dev: input device with allocated MT slots + * @count: the number of contacts + * + * Reports the contact count via BTN_TOOL_FINGER, BTN_TOOL_DOUBLETAP, + * BTN_TOOL_TRIPLETAP and BTN_TOOL_QUADTAP. + * + * The input core ensures only the KEY events already setup for + * this device will produce output. + */ +void input_mt_report_finger_count(struct input_dev *dev, int count) +{ + input_event(dev, EV_KEY, BTN_TOOL_FINGER, count == 1); + input_event(dev, EV_KEY, BTN_TOOL_DOUBLETAP, count == 2); + input_event(dev, EV_KEY, BTN_TOOL_TRIPLETAP, count == 3); + input_event(dev, EV_KEY, BTN_TOOL_QUADTAP, count == 4); +} +EXPORT_SYMBOL(input_mt_report_finger_count); + +/** + * input_mt_report_pointer_emulation() - common pointer emulation + * @dev: input device with allocated MT slots + * @use_count: report number of active contacts as finger count + * + * Performs legacy pointer emulation via BTN_TOUCH, ABS_X, ABS_Y and + * ABS_PRESSURE. Touchpad finger count is emulated if use_count is true. + * + * The input core ensures only the KEY and ABS axes already setup for + * this device will produce output. + */ +void input_mt_report_pointer_emulation(struct input_dev *dev, bool use_count) +{ + struct input_mt_slot *oldest = 0; + int oldid = dev->trkid; + int count = 0; + int i; + + for (i = 0; i < dev->mtsize; ++i) { + struct input_mt_slot *ps = &dev->mt[i]; + int id = input_mt_get_value(ps, ABS_MT_TRACKING_ID); + + if (id < 0) + continue; + if ((id - oldid) & TRKID_SGN) { + oldest = ps; + oldid = id; + } + count++; + } + + input_event(dev, EV_KEY, BTN_TOUCH, count > 0); + if (use_count) + input_mt_report_finger_count(dev, count); + + if (oldest) { + int x = input_mt_get_value(oldest, ABS_MT_POSITION_X); + int y = input_mt_get_value(oldest, ABS_MT_POSITION_Y); + int p = input_mt_get_value(oldest, ABS_MT_PRESSURE); + + input_event(dev, EV_ABS, ABS_X, x); + input_event(dev, EV_ABS, ABS_Y, y); + input_event(dev, EV_ABS, ABS_PRESSURE, p); + } else { + input_event(dev, EV_ABS, ABS_PRESSURE, 0); + } +} +EXPORT_SYMBOL(input_mt_report_pointer_emulation); diff --git a/drivers/input/tablet/wacom_wac.c b/drivers/input/tablet/wacom_wac.c index f26e2238f6ca..0b0525486711 100644 --- a/drivers/input/tablet/wacom_wac.c +++ b/drivers/input/tablet/wacom_wac.c @@ -863,19 +863,21 @@ static int wacom_bpt_touch(struct wacom_wac *wacom) struct wacom_features *features = &wacom->features; struct input_dev *input = wacom->input; unsigned char *data = wacom->data; - int sp = 0, sx = 0, sy = 0, count = 0; int i; for (i = 0; i < 2; i++) { int p = data[9 * i + 2]; + bool touch = p && !wacom->shared->stylus_in_proximity; + input_mt_slot(input, i); + input_mt_report_slot_state(input, MT_TOOL_FINGER, touch); /* * Touch events need to be disabled while stylus is * in proximity because user's hand is resting on touchpad * and sending unwanted events. User expects tablet buttons * to continue working though. */ - if (p && !wacom->shared->stylus_in_proximity) { + if (touch) { int x = get_unaligned_be16(&data[9 * i + 3]) & 0x7ff; int y = get_unaligned_be16(&data[9 * i + 5]) & 0x7ff; if (features->quirks & WACOM_QUIRK_BBTOUCH_LOWRES) { @@ -885,23 +887,10 @@ static int wacom_bpt_touch(struct wacom_wac *wacom) input_report_abs(input, ABS_MT_PRESSURE, p); input_report_abs(input, ABS_MT_POSITION_X, x); input_report_abs(input, ABS_MT_POSITION_Y, y); - if (wacom->id[i] < 0) - wacom->id[i] = wacom->trk_id++ & MAX_TRACKING_ID; - if (!count++) - sp = p, sx = x, sy = y; - } else { - wacom->id[i] = -1; } - input_report_abs(input, ABS_MT_TRACKING_ID, wacom->id[i]); } - input_report_key(input, BTN_TOUCH, count > 0); - input_report_key(input, BTN_TOOL_FINGER, count == 1); - input_report_key(input, BTN_TOOL_DOUBLETAP, count == 2); - - input_report_abs(input, ABS_PRESSURE, sp); - input_report_abs(input, ABS_X, sx); - input_report_abs(input, ABS_Y, sy); + input_mt_report_pointer_emulation(input, true); input_report_key(input, BTN_LEFT, (data[1] & 0x08) != 0); input_report_key(input, BTN_FORWARD, (data[1] & 0x04) != 0); @@ -1283,8 +1272,6 @@ void wacom_setup_input_capabilities(struct input_dev *input_dev, input_set_abs_params(input_dev, ABS_MT_PRESSURE, 0, features->pressure_max, features->pressure_fuzz, 0); - input_set_abs_params(input_dev, ABS_MT_TRACKING_ID, 0, - MAX_TRACKING_ID, 0, 0); } else if (features->device_type == BTN_TOOL_PEN) { __set_bit(BTN_TOOL_RUBBER, input_dev->keybit); __set_bit(BTN_TOOL_PEN, input_dev->keybit); diff --git a/drivers/input/tablet/wacom_wac.h b/drivers/input/tablet/wacom_wac.h index 00ca01541d89..b1310ec9720c 100644 --- a/drivers/input/tablet/wacom_wac.h +++ b/drivers/input/tablet/wacom_wac.h @@ -42,9 +42,6 @@ #define WACOM_QUIRK_MULTI_INPUT 0x0001 #define WACOM_QUIRK_BBTOUCH_LOWRES 0x0002 -/* largest reported tracking id */ -#define MAX_TRACKING_ID 0xfff - enum { PENPARTNER = 0, GRAPHIRE, @@ -100,7 +97,6 @@ struct wacom_wac { int id[3]; __u32 serial[2]; int last_finger; - int trk_id; struct wacom_features features; struct wacom_shared *shared; struct input_dev *input; diff --git a/drivers/input/touchscreen/wacom_w8001.c b/drivers/input/touchscreen/wacom_w8001.c index 4a2e8cf4c8ef..2a0bec12d12a 100644 --- a/drivers/input/touchscreen/wacom_w8001.c +++ b/drivers/input/touchscreen/wacom_w8001.c @@ -48,8 +48,6 @@ MODULE_LICENSE("GPL"); #define W8001_PKTLEN_TPCCTL 11 /* control packet */ #define W8001_PKTLEN_TOUCH2FG 13 -#define MAX_TRACKING_ID 0xFF /* arbitrarily chosen */ - struct w8001_coord { u8 rdy; u8 tsw; @@ -87,7 +85,6 @@ struct w8001 { char phys[32]; int type; unsigned int pktlen; - int trkid[2]; }; static void parse_data(u8 *data, struct w8001_coord *coord) @@ -116,28 +113,23 @@ static void parse_data(u8 *data, struct w8001_coord *coord) static void parse_touch(struct w8001 *w8001) { - static int trkid; struct input_dev *dev = w8001->dev; unsigned char *data = w8001->data; int i; for (i = 0; i < 2; i++) { - input_mt_slot(dev, i); + bool touch = data[0] & (1 << i); - if (data[0] & (1 << i)) { + input_mt_slot(dev, i); + input_mt_report_slot_state(dev, MT_TOOL_FINGER, touch); + if (touch) { int x = (data[6 * i + 1] << 7) | (data[6 * i + 2]); int y = (data[6 * i + 3] << 7) | (data[6 * i + 4]); /* data[5,6] and [11,12] is finger capacity */ input_report_abs(dev, ABS_MT_POSITION_X, x); input_report_abs(dev, ABS_MT_POSITION_Y, y); - input_report_abs(dev, ABS_MT_TOOL_TYPE, MT_TOOL_FINGER); - if (w8001->trkid[i] < 0) - w8001->trkid[i] = trkid++ & MAX_TRACKING_ID; - } else { - w8001->trkid[i] = -1; } - input_report_abs(dev, ABS_MT_TRACKING_ID, w8001->trkid[i]); } input_sync(dev); @@ -319,14 +311,12 @@ static int w8001_setup(struct w8001 *w8001) w8001->pktlen = W8001_PKTLEN_TOUCH2FG; input_mt_init_slots(dev, 2); - input_set_abs_params(dev, ABS_MT_TRACKING_ID, - 0, MAX_TRACKING_ID, 0, 0); input_set_abs_params(dev, ABS_MT_POSITION_X, 0, touch.x, 0, 0); input_set_abs_params(dev, ABS_MT_POSITION_Y, 0, touch.y, 0, 0); input_set_abs_params(dev, ABS_MT_TOOL_TYPE, - 0, 0, 0, 0); + 0, MT_TOOL_MAX, 0, 0); break; } } @@ -372,7 +362,6 @@ static int w8001_connect(struct serio *serio, struct serio_driver *drv) w8001->serio = serio; w8001->id = serio->id.id; w8001->dev = input_dev; - w8001->trkid[0] = w8001->trkid[1] = -1; init_completion(&w8001->cmd_done); snprintf(w8001->phys, sizeof(w8001->phys), "%s/input0", serio->phys); diff --git a/include/linux/input.h b/include/linux/input.h index 99e2a52c0509..6de145df4c1c 100644 --- a/include/linux/input.h +++ b/include/linux/input.h @@ -848,6 +848,7 @@ struct input_keymap_entry { */ #define MT_TOOL_FINGER 0 #define MT_TOOL_PEN 1 +#define MT_TOOL_MAX 1 /* * Values describing the status of a force-feedback effect @@ -1122,6 +1123,7 @@ struct ff_effect { * of tracked contacts * @mtsize: number of MT slots the device uses * @slot: MT slot currently being transmitted + * @trkid: stores MT tracking ID for the current contact * @absinfo: array of &struct absinfo elements holding information * about absolute axes (current value, min, max, flat, fuzz, * resolution) @@ -1206,6 +1208,7 @@ struct input_dev { struct input_mt_slot *mt; int mtsize; int slot; + int trkid; struct input_absinfo *absinfo; diff --git a/include/linux/input/mt.h b/include/linux/input/mt.h index d7f6518e3222..b3ac06a4435d 100644 --- a/include/linux/input/mt.h +++ b/include/linux/input/mt.h @@ -13,6 +13,8 @@ #include +#define TRKID_MAX 0xffff + /** * struct input_mt_slot - represents the state of an input MT slot * @abs: holds current values of ABS_MT axes for this slot @@ -36,9 +38,20 @@ static inline int input_mt_get_value(const struct input_mt_slot *slot, int input_mt_init_slots(struct input_dev *dev, unsigned int num_slots); void input_mt_destroy_slots(struct input_dev *dev); +static inline int input_mt_new_trkid(struct input_dev *dev) +{ + return dev->trkid++ & TRKID_MAX; +} + static inline void input_mt_slot(struct input_dev *dev, int slot) { input_event(dev, EV_ABS, ABS_MT_SLOT, slot); } +void input_mt_report_slot_state(struct input_dev *dev, + unsigned int tool_type, bool active); + +void input_mt_report_finger_count(struct input_dev *dev, int count); +void input_mt_report_pointer_emulation(struct input_dev *dev, bool use_count); + #endif -- cgit v1.2.3 From da1f026b532ce944d74461497dc6d8c16456466e Mon Sep 17 00:00:00 2001 From: Janusz Krzysztofik Date: Mon, 20 Dec 2010 21:09:22 +0000 Subject: Keyboard: omap-keypad: use matrix_keypad.h Most keypad drivers make use of the defined macros, structures and inline functions. Convert omap-keypad driver to use those as well, as suggested by a compile time warning, hardcoded into the OMAP . Created against linux-2.6.37-rc5. Tested on Amstrad Delta. Compile tested with omap1_defconfig and omap2plus_defconfig shrinked to board-h4. Signed-off-by: Janusz Krzysztofik Reviewed-by: Aaro Koskinen Acked-by: Dmitry Torokhov Signed-off-by: Tony Lindgren --- arch/arm/mach-omap1/board-ams-delta.c | 128 ++++++++++++++++--------------- arch/arm/mach-omap1/board-fsample.c | 67 ++++++++-------- arch/arm/mach-omap1/board-h2.c | 75 +++++++++--------- arch/arm/mach-omap1/board-h3.c | 75 +++++++++--------- arch/arm/mach-omap1/board-htcherald.c | 98 +++++++++++------------ arch/arm/mach-omap1/board-innovator.c | 21 ++--- arch/arm/mach-omap1/board-nokia770.c | 29 +++---- arch/arm/mach-omap1/board-osk.c | 21 ++--- arch/arm/mach-omap1/board-palmte.c | 28 ++++--- arch/arm/mach-omap1/board-palmtt.c | 28 ++++--- arch/arm/mach-omap1/board-palmz71.c | 30 ++++---- arch/arm/mach-omap1/board-perseus2.c | 69 +++++++++-------- arch/arm/mach-omap1/board-sx1.c | 57 +++++++------- arch/arm/mach-omap2/board-h4.c | 63 +++++++-------- arch/arm/plat-omap/include/plat/keypad.h | 35 +++++---- drivers/input/keyboard/omap-keypad.c | 41 +++++----- include/linux/input/matrix_keypad.h | 2 +- 17 files changed, 457 insertions(+), 410 deletions(-) (limited to 'include/linux/input') diff --git a/arch/arm/mach-omap1/board-ams-delta.c b/arch/arm/mach-omap1/board-ams-delta.c index e1439506eba9..bd0495a9ac3b 100644 --- a/arch/arm/mach-omap1/board-ams-delta.c +++ b/arch/arm/mach-omap1/board-ams-delta.c @@ -43,84 +43,82 @@ static u8 ams_delta_latch1_reg; static u16 ams_delta_latch2_reg; -static int ams_delta_keymap[] = { +static const unsigned int ams_delta_keymap[] = { KEY(0, 0, KEY_F1), /* Advert */ - KEY(3, 0, KEY_COFFEE), /* Games */ - KEY(2, 0, KEY_QUESTION), /* Directory */ - KEY(3, 2, KEY_CONNECT), /* Internet */ - KEY(2, 1, KEY_SHOP), /* Services */ + KEY(0, 3, KEY_COFFEE), /* Games */ + KEY(0, 2, KEY_QUESTION), /* Directory */ + KEY(2, 3, KEY_CONNECT), /* Internet */ + KEY(1, 2, KEY_SHOP), /* Services */ KEY(1, 1, KEY_PHONE), /* VoiceMail */ - KEY(1, 0, KEY_DELETE), /* Delete */ + KEY(0, 1, KEY_DELETE), /* Delete */ KEY(2, 2, KEY_PLAY), /* Play */ - KEY(0, 1, KEY_PAGEUP), /* Up */ - KEY(3, 1, KEY_PAGEDOWN), /* Down */ - KEY(0, 2, KEY_EMAIL), /* ReadEmail */ - KEY(1, 2, KEY_STOP), /* Stop */ + KEY(1, 0, KEY_PAGEUP), /* Up */ + KEY(1, 3, KEY_PAGEDOWN), /* Down */ + KEY(2, 0, KEY_EMAIL), /* ReadEmail */ + KEY(2, 1, KEY_STOP), /* Stop */ /* Numeric keypad portion */ - KEY(7, 0, KEY_KP1), - KEY(6, 0, KEY_KP2), - KEY(5, 0, KEY_KP3), - KEY(7, 1, KEY_KP4), - KEY(6, 1, KEY_KP5), - KEY(5, 1, KEY_KP6), - KEY(7, 2, KEY_KP7), - KEY(6, 2, KEY_KP8), - KEY(5, 2, KEY_KP9), - KEY(6, 3, KEY_KP0), - KEY(7, 3, KEY_KPASTERISK), - KEY(5, 3, KEY_KPDOT), /* # key */ - KEY(2, 7, KEY_NUMLOCK), /* Mute */ - KEY(1, 7, KEY_KPMINUS), /* Recall */ - KEY(1, 6, KEY_KPPLUS), /* Redial */ - KEY(6, 7, KEY_KPSLASH), /* Handsfree */ - KEY(0, 6, KEY_ENTER), /* Video */ - - KEY(4, 7, KEY_CAMERA), /* Photo */ - - KEY(4, 0, KEY_F2), /* Home */ - KEY(4, 1, KEY_F3), /* Office */ - KEY(4, 2, KEY_F4), /* Mobile */ + KEY(0, 7, KEY_KP1), + KEY(0, 6, KEY_KP2), + KEY(0, 5, KEY_KP3), + KEY(1, 7, KEY_KP4), + KEY(1, 6, KEY_KP5), + KEY(1, 5, KEY_KP6), + KEY(2, 7, KEY_KP7), + KEY(2, 6, KEY_KP8), + KEY(2, 5, KEY_KP9), + KEY(3, 6, KEY_KP0), + KEY(3, 7, KEY_KPASTERISK), + KEY(3, 5, KEY_KPDOT), /* # key */ + KEY(7, 2, KEY_NUMLOCK), /* Mute */ + KEY(7, 1, KEY_KPMINUS), /* Recall */ + KEY(6, 1, KEY_KPPLUS), /* Redial */ + KEY(7, 6, KEY_KPSLASH), /* Handsfree */ + KEY(6, 0, KEY_ENTER), /* Video */ + + KEY(7, 4, KEY_CAMERA), /* Photo */ + + KEY(0, 4, KEY_F2), /* Home */ + KEY(1, 4, KEY_F3), /* Office */ + KEY(2, 4, KEY_F4), /* Mobile */ KEY(7, 7, KEY_F5), /* SMS */ - KEY(5, 7, KEY_F6), /* Email */ + KEY(7, 5, KEY_F6), /* Email */ /* QWERTY portion of keypad */ - KEY(4, 3, KEY_Q), + KEY(3, 4, KEY_Q), KEY(3, 3, KEY_W), - KEY(2, 3, KEY_E), - KEY(1, 3, KEY_R), - KEY(0, 3, KEY_T), - KEY(7, 4, KEY_Y), - KEY(6, 4, KEY_U), - KEY(5, 4, KEY_I), + KEY(3, 2, KEY_E), + KEY(3, 1, KEY_R), + KEY(3, 0, KEY_T), + KEY(4, 7, KEY_Y), + KEY(4, 6, KEY_U), + KEY(4, 5, KEY_I), KEY(4, 4, KEY_O), - KEY(3, 4, KEY_P), + KEY(4, 3, KEY_P), - KEY(2, 4, KEY_A), - KEY(1, 4, KEY_S), - KEY(0, 4, KEY_D), - KEY(7, 5, KEY_F), - KEY(6, 5, KEY_G), + KEY(4, 2, KEY_A), + KEY(4, 1, KEY_S), + KEY(4, 0, KEY_D), + KEY(5, 7, KEY_F), + KEY(5, 6, KEY_G), KEY(5, 5, KEY_H), - KEY(4, 5, KEY_J), - KEY(3, 5, KEY_K), - KEY(2, 5, KEY_L), + KEY(5, 4, KEY_J), + KEY(5, 3, KEY_K), + KEY(5, 2, KEY_L), - KEY(1, 5, KEY_Z), - KEY(0, 5, KEY_X), - KEY(7, 6, KEY_C), + KEY(5, 1, KEY_Z), + KEY(5, 0, KEY_X), + KEY(6, 7, KEY_C), KEY(6, 6, KEY_V), - KEY(5, 6, KEY_B), - KEY(4, 6, KEY_N), - KEY(3, 6, KEY_M), - KEY(2, 6, KEY_SPACE), + KEY(6, 5, KEY_B), + KEY(6, 4, KEY_N), + KEY(6, 3, KEY_M), + KEY(6, 2, KEY_SPACE), - KEY(0, 7, KEY_LEFTSHIFT), /* Vol up */ - KEY(3, 7, KEY_LEFTCTRL), /* Vol down */ - - 0 + KEY(7, 0, KEY_LEFTSHIFT), /* Vol up */ + KEY(7, 3, KEY_LEFTCTRL), /* Vol down */ }; void ams_delta_latch1_write(u8 mask, u8 value) @@ -189,11 +187,15 @@ static struct resource ams_delta_kp_resources[] = { }, }; +static const struct matrix_keymap_data ams_delta_keymap_data = { + .keymap = ams_delta_keymap, + .keymap_size = ARRAY_SIZE(ams_delta_keymap), +}; + static struct omap_kp_platform_data ams_delta_kp_data = { .rows = 8, .cols = 8, - .keymap = ams_delta_keymap, - .keymapsize = ARRAY_SIZE(ams_delta_keymap), + .keymap_data = &ams_delta_keymap_data, .delay = 9, }; diff --git a/arch/arm/mach-omap1/board-fsample.c b/arch/arm/mach-omap1/board-fsample.c index 0c3f396328bd..0efb9dbae44c 100644 --- a/arch/arm/mach-omap1/board-fsample.c +++ b/arch/arm/mach-omap1/board-fsample.c @@ -69,36 +69,35 @@ #define fsample_cpld_clear(bit) \ fsample_cpld_write(0xf0 | ((bit) & 15), FSAMPLE_CPLD_SET_CLR) -static int fsample_keymap[] = { - KEY(0,0,KEY_UP), - KEY(0,1,KEY_RIGHT), - KEY(0,2,KEY_LEFT), - KEY(0,3,KEY_DOWN), - KEY(0,4,KEY_ENTER), - KEY(1,0,KEY_F10), - KEY(1,1,KEY_SEND), - KEY(1,2,KEY_END), - KEY(1,3,KEY_VOLUMEDOWN), - KEY(1,4,KEY_VOLUMEUP), - KEY(1,5,KEY_RECORD), - KEY(2,0,KEY_F9), - KEY(2,1,KEY_3), - KEY(2,2,KEY_6), - KEY(2,3,KEY_9), - KEY(2,4,KEY_KPDOT), - KEY(3,0,KEY_BACK), - KEY(3,1,KEY_2), - KEY(3,2,KEY_5), - KEY(3,3,KEY_8), - KEY(3,4,KEY_0), - KEY(3,5,KEY_KPSLASH), - KEY(4,0,KEY_HOME), - KEY(4,1,KEY_1), - KEY(4,2,KEY_4), - KEY(4,3,KEY_7), - KEY(4,4,KEY_KPASTERISK), - KEY(4,5,KEY_POWER), - 0 +static const unsigned int fsample_keymap[] = { + KEY(0, 0, KEY_UP), + KEY(1, 0, KEY_RIGHT), + KEY(2, 0, KEY_LEFT), + KEY(3, 0, KEY_DOWN), + KEY(4, 0, KEY_ENTER), + KEY(0, 1, KEY_F10), + KEY(1, 1, KEY_SEND), + KEY(2, 1, KEY_END), + KEY(3, 1, KEY_VOLUMEDOWN), + KEY(4, 1, KEY_VOLUMEUP), + KEY(5, 1, KEY_RECORD), + KEY(0, 2, KEY_F9), + KEY(1, 2, KEY_3), + KEY(2, 2, KEY_6), + KEY(3, 2, KEY_9), + KEY(4, 2, KEY_KPDOT), + KEY(0, 3, KEY_BACK), + KEY(1, 3, KEY_2), + KEY(2, 3, KEY_5), + KEY(3, 3, KEY_8), + KEY(4, 3, KEY_0), + KEY(5, 3, KEY_KPSLASH), + KEY(0, 4, KEY_HOME), + KEY(1, 4, KEY_1), + KEY(2, 4, KEY_4), + KEY(3, 4, KEY_7), + KEY(4, 4, KEY_KPASTERISK), + KEY(5, 4, KEY_POWER), }; static struct smc91x_platdata smc91x_info = { @@ -253,11 +252,15 @@ static struct resource kp_resources[] = { }, }; +static const struct matrix_keymap_data fsample_keymap_data = { + .keymap = fsample_keymap, + .keymap_size = ARRAY_SIZE(fsample_keymap), +}; + static struct omap_kp_platform_data kp_data = { .rows = 8, .cols = 8, - .keymap = fsample_keymap, - .keymapsize = ARRAY_SIZE(fsample_keymap), + .keymap_data = &fsample_keymap_data, .delay = 4, }; diff --git a/arch/arm/mach-omap1/board-h2.c b/arch/arm/mach-omap1/board-h2.c index 082a73ca5564..28b84aa9bdba 100644 --- a/arch/arm/mach-omap1/board-h2.c +++ b/arch/arm/mach-omap1/board-h2.c @@ -52,43 +52,42 @@ /* At OMAP1610 Innovator the Ethernet is directly connected to CS1 */ #define OMAP1610_ETHR_START 0x04000300 -static int h2_keymap[] = { +static const unsigned int h2_keymap[] = { KEY(0, 0, KEY_LEFT), - KEY(0, 1, KEY_RIGHT), - KEY(0, 2, KEY_3), - KEY(0, 3, KEY_F10), - KEY(0, 4, KEY_F5), - KEY(0, 5, KEY_9), - KEY(1, 0, KEY_DOWN), + KEY(1, 0, KEY_RIGHT), + KEY(2, 0, KEY_3), + KEY(3, 0, KEY_F10), + KEY(4, 0, KEY_F5), + KEY(5, 0, KEY_9), + KEY(0, 1, KEY_DOWN), KEY(1, 1, KEY_UP), - KEY(1, 2, KEY_2), - KEY(1, 3, KEY_F9), - KEY(1, 4, KEY_F7), - KEY(1, 5, KEY_0), - KEY(2, 0, KEY_ENTER), - KEY(2, 1, KEY_6), + KEY(2, 1, KEY_2), + KEY(3, 1, KEY_F9), + KEY(4, 1, KEY_F7), + KEY(5, 1, KEY_0), + KEY(0, 2, KEY_ENTER), + KEY(1, 2, KEY_6), KEY(2, 2, KEY_1), - KEY(2, 3, KEY_F2), - KEY(2, 4, KEY_F6), - KEY(2, 5, KEY_HOME), - KEY(3, 0, KEY_8), - KEY(3, 1, KEY_5), - KEY(3, 2, KEY_F12), + KEY(3, 2, KEY_F2), + KEY(4, 2, KEY_F6), + KEY(5, 2, KEY_HOME), + KEY(0, 3, KEY_8), + KEY(1, 3, KEY_5), + KEY(2, 3, KEY_F12), KEY(3, 3, KEY_F3), - KEY(3, 4, KEY_F8), - KEY(3, 5, KEY_END), - KEY(4, 0, KEY_7), - KEY(4, 1, KEY_4), - KEY(4, 2, KEY_F11), - KEY(4, 3, KEY_F1), + KEY(4, 3, KEY_F8), + KEY(5, 3, KEY_END), + KEY(0, 4, KEY_7), + KEY(1, 4, KEY_4), + KEY(2, 4, KEY_F11), + KEY(3, 4, KEY_F1), KEY(4, 4, KEY_F4), - KEY(4, 5, KEY_ESC), - KEY(5, 0, KEY_F13), - KEY(5, 1, KEY_F14), - KEY(5, 2, KEY_F15), - KEY(5, 3, KEY_F16), - KEY(5, 4, KEY_SLEEP), - 0 + KEY(5, 4, KEY_ESC), + KEY(0, 5, KEY_F13), + KEY(1, 5, KEY_F14), + KEY(2, 5, KEY_F15), + KEY(3, 5, KEY_F16), + KEY(4, 5, KEY_SLEEP), }; static struct mtd_partition h2_nor_partitions[] = { @@ -270,14 +269,18 @@ static struct resource h2_kp_resources[] = { }, }; +static const struct matrix_keymap_data h2_keymap_data = { + .keymap = h2_keymap, + .keymap_size = ARRAY_SIZE(h2_keymap), +}; + static struct omap_kp_platform_data h2_kp_data = { .rows = 8, .cols = 8, - .keymap = h2_keymap, - .keymapsize = ARRAY_SIZE(h2_keymap), - .rep = 1, + .keymap_data = &h2_keymap_data, + .rep = true, .delay = 9, - .dbounce = 1, + .dbounce = true, }; static struct platform_device h2_kp_device = { diff --git a/arch/arm/mach-omap1/board-h3.c b/arch/arm/mach-omap1/board-h3.c index d2cff5022fe5..dbc8b8d882ba 100644 --- a/arch/arm/mach-omap1/board-h3.c +++ b/arch/arm/mach-omap1/board-h3.c @@ -56,43 +56,42 @@ #define H3_TS_GPIO 48 -static int h3_keymap[] = { +static const unsigned int h3_keymap[] = { KEY(0, 0, KEY_LEFT), - KEY(0, 1, KEY_RIGHT), - KEY(0, 2, KEY_3), - KEY(0, 3, KEY_F10), - KEY(0, 4, KEY_F5), - KEY(0, 5, KEY_9), - KEY(1, 0, KEY_DOWN), + KEY(1, 0, KEY_RIGHT), + KEY(2, 0, KEY_3), + KEY(3, 0, KEY_F10), + KEY(4, 0, KEY_F5), + KEY(5, 0, KEY_9), + KEY(0, 1, KEY_DOWN), KEY(1, 1, KEY_UP), - KEY(1, 2, KEY_2), - KEY(1, 3, KEY_F9), - KEY(1, 4, KEY_F7), - KEY(1, 5, KEY_0), - KEY(2, 0, KEY_ENTER), - KEY(2, 1, KEY_6), + KEY(2, 1, KEY_2), + KEY(3, 1, KEY_F9), + KEY(4, 1, KEY_F7), + KEY(5, 1, KEY_0), + KEY(0, 2, KEY_ENTER), + KEY(1, 2, KEY_6), KEY(2, 2, KEY_1), - KEY(2, 3, KEY_F2), - KEY(2, 4, KEY_F6), - KEY(2, 5, KEY_HOME), - KEY(3, 0, KEY_8), - KEY(3, 1, KEY_5), - KEY(3, 2, KEY_F12), + KEY(3, 2, KEY_F2), + KEY(4, 2, KEY_F6), + KEY(5, 2, KEY_HOME), + KEY(0, 3, KEY_8), + KEY(1, 3, KEY_5), + KEY(2, 3, KEY_F12), KEY(3, 3, KEY_F3), - KEY(3, 4, KEY_F8), - KEY(3, 5, KEY_END), - KEY(4, 0, KEY_7), - KEY(4, 1, KEY_4), - KEY(4, 2, KEY_F11), - KEY(4, 3, KEY_F1), + KEY(4, 3, KEY_F8), + KEY(5, 3, KEY_END), + KEY(0, 4, KEY_7), + KEY(1, 4, KEY_4), + KEY(2, 4, KEY_F11), + KEY(3, 4, KEY_F1), KEY(4, 4, KEY_F4), - KEY(4, 5, KEY_ESC), - KEY(5, 0, KEY_F13), - KEY(5, 1, KEY_F14), - KEY(5, 2, KEY_F15), - KEY(5, 3, KEY_F16), - KEY(5, 4, KEY_SLEEP), - 0 + KEY(5, 4, KEY_ESC), + KEY(0, 5, KEY_F13), + KEY(1, 5, KEY_F14), + KEY(2, 5, KEY_F15), + KEY(3, 5, KEY_F16), + KEY(4, 5, KEY_SLEEP), }; @@ -305,14 +304,18 @@ static struct resource h3_kp_resources[] = { }, }; +static const struct matrix_keymap_data h3_keymap_data = { + .keymap = h3_keymap, + .keymap_size = ARRAY_SIZE(h3_keymap), +}; + static struct omap_kp_platform_data h3_kp_data = { .rows = 8, .cols = 8, - .keymap = h3_keymap, - .keymapsize = ARRAY_SIZE(h3_keymap), - .rep = 1, + .keymap_data = &h3_keymap_data, + .rep = true, .delay = 9, - .dbounce = 1, + .dbounce = true, }; static struct platform_device h3_kp_device = { diff --git a/arch/arm/mach-omap1/board-htcherald.c b/arch/arm/mach-omap1/board-htcherald.c index 742c6d107268..f2c5c585bc83 100644 --- a/arch/arm/mach-omap1/board-htcherald.c +++ b/arch/arm/mach-omap1/board-htcherald.c @@ -180,64 +180,68 @@ /* Keyboard definition */ -static int htc_herald_keymap[] = { +static const unsigned int htc_herald_keymap[] = { KEY(0, 0, KEY_RECORD), /* Mail button */ - KEY(0, 1, KEY_CAMERA), /* Camera */ - KEY(0, 2, KEY_PHONE), /* Send key */ - KEY(0, 3, KEY_VOLUMEUP), /* Volume up */ - KEY(0, 4, KEY_F2), /* Right bar (landscape) */ - KEY(0, 5, KEY_MAIL), /* Win key (portrait) */ - KEY(0, 6, KEY_DIRECTORY), /* Right bar (protrait) */ - KEY(1, 0, KEY_LEFTCTRL), /* Windows key */ + KEY(1, 0, KEY_CAMERA), /* Camera */ + KEY(2, 0, KEY_PHONE), /* Send key */ + KEY(3, 0, KEY_VOLUMEUP), /* Volume up */ + KEY(4, 0, KEY_F2), /* Right bar (landscape) */ + KEY(5, 0, KEY_MAIL), /* Win key (portrait) */ + KEY(6, 0, KEY_DIRECTORY), /* Right bar (protrait) */ + KEY(0, 1, KEY_LEFTCTRL), /* Windows key */ KEY(1, 1, KEY_COMMA), - KEY(1, 2, KEY_M), - KEY(1, 3, KEY_K), - KEY(1, 4, KEY_SLASH), /* OK key */ - KEY(1, 5, KEY_I), - KEY(1, 6, KEY_U), - KEY(2, 0, KEY_LEFTALT), - KEY(2, 1, KEY_TAB), + KEY(2, 1, KEY_M), + KEY(3, 1, KEY_K), + KEY(4, 1, KEY_SLASH), /* OK key */ + KEY(5, 1, KEY_I), + KEY(6, 1, KEY_U), + KEY(0, 2, KEY_LEFTALT), + KEY(1, 2, KEY_TAB), KEY(2, 2, KEY_N), - KEY(2, 3, KEY_J), - KEY(2, 4, KEY_ENTER), - KEY(2, 5, KEY_H), - KEY(2, 6, KEY_Y), - KEY(3, 0, KEY_SPACE), - KEY(3, 1, KEY_L), - KEY(3, 2, KEY_B), + KEY(3, 2, KEY_J), + KEY(4, 2, KEY_ENTER), + KEY(5, 2, KEY_H), + KEY(6, 2, KEY_Y), + KEY(0, 3, KEY_SPACE), + KEY(1, 3, KEY_L), + KEY(2, 3, KEY_B), KEY(3, 3, KEY_V), - KEY(3, 4, KEY_BACKSPACE), - KEY(3, 5, KEY_G), - KEY(3, 6, KEY_T), - KEY(4, 0, KEY_CAPSLOCK), /* Shift */ - KEY(4, 1, KEY_C), - KEY(4, 2, KEY_F), - KEY(4, 3, KEY_R), + KEY(4, 3, KEY_BACKSPACE), + KEY(5, 3, KEY_G), + KEY(6, 3, KEY_T), + KEY(0, 4, KEY_CAPSLOCK), /* Shift */ + KEY(1, 4, KEY_C), + KEY(2, 4, KEY_F), + KEY(3, 4, KEY_R), KEY(4, 4, KEY_O), - KEY(4, 5, KEY_E), - KEY(4, 6, KEY_D), - KEY(5, 0, KEY_X), - KEY(5, 1, KEY_Z), - KEY(5, 2, KEY_S), - KEY(5, 3, KEY_W), - KEY(5, 4, KEY_P), + KEY(5, 4, KEY_E), + KEY(6, 4, KEY_D), + KEY(0, 5, KEY_X), + KEY(1, 5, KEY_Z), + KEY(2, 5, KEY_S), + KEY(3, 5, KEY_W), + KEY(4, 5, KEY_P), KEY(5, 5, KEY_Q), - KEY(5, 6, KEY_A), - KEY(6, 0, KEY_CONNECT), /* Voice button */ - KEY(6, 2, KEY_CANCEL), /* End key */ - KEY(6, 3, KEY_VOLUMEDOWN), /* Volume down */ - KEY(6, 4, KEY_F1), /* Left bar (landscape) */ - KEY(6, 5, KEY_WWW), /* OK button (portrait) */ + KEY(6, 5, KEY_A), + KEY(0, 6, KEY_CONNECT), /* Voice button */ + KEY(2, 6, KEY_CANCEL), /* End key */ + KEY(3, 6, KEY_VOLUMEDOWN), /* Volume down */ + KEY(4, 6, KEY_F1), /* Left bar (landscape) */ + KEY(5, 6, KEY_WWW), /* OK button (portrait) */ KEY(6, 6, KEY_CALENDAR), /* Left bar (portrait) */ - 0 }; -struct omap_kp_platform_data htcherald_kp_data = { +static const struct matrix_keymap_data htc_herald_keymap_data = { + .keymap = htc_herald_keymap, + .keymap_size = ARRAY_SIZE(htc_herald_keymap), +}; + +static struct omap_kp_platform_data htcherald_kp_data = { .rows = 7, .cols = 7, .delay = 20, - .rep = 1, - .keymap = htc_herald_keymap, + .rep = true, + .keymap_data = &htc_herald_keymap_data, }; static struct resource kp_resources[] = { @@ -278,7 +282,7 @@ static struct gpio_keys_button herald_gpio_keys_table[] = { static struct gpio_keys_platform_data herald_gpio_keys_data = { .buttons = herald_gpio_keys_table, .nbuttons = ARRAY_SIZE(herald_gpio_keys_table), - .rep = 1, + .rep = true, }; static struct platform_device herald_gpiokeys_device = { diff --git a/arch/arm/mach-omap1/board-innovator.c b/arch/arm/mach-omap1/board-innovator.c index 8d59b078fc2c..a36e6742bf9b 100644 --- a/arch/arm/mach-omap1/board-innovator.c +++ b/arch/arm/mach-omap1/board-innovator.c @@ -44,17 +44,16 @@ /* At OMAP1610 Innovator the Ethernet is directly connected to CS1 */ #define INNOVATOR1610_ETHR_START 0x04000300 -static int innovator_keymap[] = { +static const unsigned int innovator_keymap[] = { KEY(0, 0, KEY_F1), - KEY(0, 3, KEY_DOWN), + KEY(3, 0, KEY_DOWN), KEY(1, 1, KEY_F2), - KEY(1, 2, KEY_RIGHT), - KEY(2, 0, KEY_F3), - KEY(2, 1, KEY_F4), + KEY(2, 1, KEY_RIGHT), + KEY(0, 2, KEY_F3), + KEY(1, 2, KEY_F4), KEY(2, 2, KEY_UP), - KEY(3, 2, KEY_ENTER), + KEY(2, 3, KEY_ENTER), KEY(3, 3, KEY_LEFT), - 0 }; static struct mtd_partition innovator_partitions[] = { @@ -126,11 +125,15 @@ static struct resource innovator_kp_resources[] = { }, }; +static const struct matrix_keymap_data innovator_keymap_data = { + .keymap = innovator_keymap, + .keymap_size = ARRAY_SIZE(innovator_keymap), +}; + static struct omap_kp_platform_data innovator_kp_data = { .rows = 8, .cols = 8, - .keymap = innovator_keymap, - .keymapsize = ARRAY_SIZE(innovator_keymap), + .keymap_data = &innovator_keymap_data, .delay = 4, }; diff --git a/arch/arm/mach-omap1/board-nokia770.c b/arch/arm/mach-omap1/board-nokia770.c index 605495bbc583..d21f09dc78f4 100644 --- a/arch/arm/mach-omap1/board-nokia770.c +++ b/arch/arm/mach-omap1/board-nokia770.c @@ -54,19 +54,18 @@ static void __init omap_nokia770_init_irq(void) omap_init_irq(); } -static int nokia770_keymap[] = { - KEY(0, 1, GROUP_0 | KEY_UP), - KEY(0, 2, GROUP_1 | KEY_F5), - KEY(1, 0, GROUP_0 | KEY_LEFT), +static const unsigned int nokia770_keymap[] = { + KEY(1, 0, GROUP_0 | KEY_UP), + KEY(2, 0, GROUP_1 | KEY_F5), + KEY(0, 1, GROUP_0 | KEY_LEFT), KEY(1, 1, GROUP_0 | KEY_ENTER), - KEY(1, 2, GROUP_0 | KEY_RIGHT), - KEY(2, 0, GROUP_1 | KEY_ESC), - KEY(2, 1, GROUP_0 | KEY_DOWN), + KEY(2, 1, GROUP_0 | KEY_RIGHT), + KEY(0, 2, GROUP_1 | KEY_ESC), + KEY(1, 2, GROUP_0 | KEY_DOWN), KEY(2, 2, GROUP_1 | KEY_F4), - KEY(3, 0, GROUP_2 | KEY_F7), - KEY(3, 1, GROUP_2 | KEY_F8), - KEY(3, 2, GROUP_2 | KEY_F6), - 0 + KEY(0, 3, GROUP_2 | KEY_F7), + KEY(1, 3, GROUP_2 | KEY_F8), + KEY(2, 3, GROUP_2 | KEY_F6), }; static struct resource nokia770_kp_resources[] = { @@ -77,11 +76,15 @@ static struct resource nokia770_kp_resources[] = { }, }; +static const struct matrix_keymap_data nokia770_keymap_data = { + .keymap = nokia770_keymap, + .keymap_size = ARRAY_SIZE(nokia770_keymap), +}; + static struct omap_kp_platform_data nokia770_kp_data = { .rows = 8, .cols = 8, - .keymap = nokia770_keymap, - .keymapsize = ARRAY_SIZE(nokia770_keymap), + .keymap_data = &nokia770_keymap_data, .delay = 4, }; diff --git a/arch/arm/mach-omap1/board-osk.c b/arch/arm/mach-omap1/board-osk.c index d44e7172efc2..7c5e2112c776 100644 --- a/arch/arm/mach-omap1/board-osk.c +++ b/arch/arm/mach-omap1/board-osk.c @@ -338,25 +338,28 @@ static struct i2c_board_info __initdata mistral_i2c_board_info[] = { */ }; -static const int osk_keymap[] = { +static const unsigned int osk_keymap[] = { /* KEY(col, row, code) */ KEY(0, 0, KEY_F1), /* SW4 */ - KEY(0, 3, KEY_UP), /* (sw2/up) */ + KEY(3, 0, KEY_UP), /* (sw2/up) */ KEY(1, 1, KEY_LEFTCTRL), /* SW5 */ - KEY(1, 2, KEY_LEFT), /* (sw2/left) */ - KEY(2, 0, KEY_SPACE), /* SW3 */ - KEY(2, 1, KEY_ESC), /* SW6 */ + KEY(2, 1, KEY_LEFT), /* (sw2/left) */ + KEY(0, 2, KEY_SPACE), /* SW3 */ + KEY(1, 2, KEY_ESC), /* SW6 */ KEY(2, 2, KEY_DOWN), /* (sw2/down) */ - KEY(3, 2, KEY_ENTER), /* (sw2/select) */ + KEY(2, 3, KEY_ENTER), /* (sw2/select) */ KEY(3, 3, KEY_RIGHT), /* (sw2/right) */ - 0 +}; + +static const struct matrix_keymap_data osk_keymap_data = { + .keymap = osk_keymap, + .keymap_size = ARRAY_SIZE(osk_keymap), }; static struct omap_kp_platform_data osk_kp_data = { .rows = 8, .cols = 8, - .keymap = (int *) osk_keymap, - .keymapsize = ARRAY_SIZE(osk_keymap), + .keymap_data = &osk_keymap_data, .delay = 9, }; diff --git a/arch/arm/mach-omap1/board-palmte.c b/arch/arm/mach-omap1/board-palmte.c index 994dc6f50729..fb51ce6123d8 100644 --- a/arch/arm/mach-omap1/board-palmte.c +++ b/arch/arm/mach-omap1/board-palmte.c @@ -65,25 +65,29 @@ static void __init omap_palmte_init_irq(void) omap_init_irq(); } -static const int palmte_keymap[] = { +static const unsigned int palmte_keymap[] = { KEY(0, 0, KEY_F1), /* Calendar */ - KEY(0, 1, KEY_F2), /* Contacts */ - KEY(0, 2, KEY_F3), /* Tasks List */ - KEY(0, 3, KEY_F4), /* Note Pad */ - KEY(0, 4, KEY_POWER), - KEY(1, 0, KEY_LEFT), + KEY(1, 0, KEY_F2), /* Contacts */ + KEY(2, 0, KEY_F3), /* Tasks List */ + KEY(3, 0, KEY_F4), /* Note Pad */ + KEY(4, 0, KEY_POWER), + KEY(0, 1, KEY_LEFT), KEY(1, 1, KEY_DOWN), - KEY(1, 2, KEY_UP), - KEY(1, 3, KEY_RIGHT), - KEY(1, 4, KEY_ENTER), - 0, + KEY(2, 1, KEY_UP), + KEY(3, 1, KEY_RIGHT), + KEY(4, 1, KEY_ENTER), +}; + +static const struct matrix_keymap_data palmte_keymap_data = { + .keymap = palmte_keymap, + .keymap_size = ARRAY_SIZE(palmte_keymap), }; static struct omap_kp_platform_data palmte_kp_data = { .rows = 8, .cols = 8, - .keymap = (int *) palmte_keymap, - .rep = 1, + .keymap_data = &palmte_keymap_data, + .rep = true, .delay = 12, }; diff --git a/arch/arm/mach-omap1/board-palmtt.c b/arch/arm/mach-omap1/board-palmtt.c index ed1400a67f75..f04f2d36e7d3 100644 --- a/arch/arm/mach-omap1/board-palmtt.c +++ b/arch/arm/mach-omap1/board-palmtt.c @@ -51,19 +51,18 @@ #define PALMTT_MMC_WP_GPIO 8 #define PALMTT_HDQ_GPIO 11 -static int palmtt_keymap[] = { +static const unsigned int palmtt_keymap[] = { KEY(0, 0, KEY_ESC), - KEY(0, 1, KEY_SPACE), - KEY(0, 2, KEY_LEFTCTRL), - KEY(0, 3, KEY_TAB), - KEY(0, 4, KEY_ENTER), - KEY(1, 0, KEY_LEFT), + KEY(1, 0, KEY_SPACE), + KEY(2, 0, KEY_LEFTCTRL), + KEY(3, 0, KEY_TAB), + KEY(4, 0, KEY_ENTER), + KEY(0, 1, KEY_LEFT), KEY(1, 1, KEY_DOWN), - KEY(1, 2, KEY_UP), - KEY(1, 3, KEY_RIGHT), - KEY(2, 0, KEY_SLEEP), - KEY(2, 4, KEY_Y), - 0 + KEY(2, 1, KEY_UP), + KEY(3, 1, KEY_RIGHT), + KEY(0, 2, KEY_SLEEP), + KEY(4, 2, KEY_Y), }; static struct mtd_partition palmtt_partitions[] = { @@ -136,10 +135,15 @@ static struct resource palmtt_kp_resources[] = { }, }; +static const struct matrix_keymap_data palmtt_keymap_data = { + .keymap = palmtt_keymap, + .keymap_size = ARRAY_SIZE(palmtt_keymap), +}; + static struct omap_kp_platform_data palmtt_kp_data = { .rows = 6, .cols = 3, - .keymap = palmtt_keymap, + .keymap_data = &palmtt_keymap_data, }; static struct platform_device palmtt_kp_device = { diff --git a/arch/arm/mach-omap1/board-palmz71.c b/arch/arm/mach-omap1/board-palmz71.c index 2afac598baee..d7bbbe721a75 100644 --- a/arch/arm/mach-omap1/board-palmz71.c +++ b/arch/arm/mach-omap1/board-palmz71.c @@ -64,26 +64,30 @@ omap_palmz71_init_irq(void) omap_init_irq(); } -static int palmz71_keymap[] = { +static const unsigned int palmz71_keymap[] = { KEY(0, 0, KEY_F1), - KEY(0, 1, KEY_F2), - KEY(0, 2, KEY_F3), - KEY(0, 3, KEY_F4), - KEY(0, 4, KEY_POWER), - KEY(1, 0, KEY_LEFT), + KEY(1, 0, KEY_F2), + KEY(2, 0, KEY_F3), + KEY(3, 0, KEY_F4), + KEY(4, 0, KEY_POWER), + KEY(0, 1, KEY_LEFT), KEY(1, 1, KEY_DOWN), - KEY(1, 2, KEY_UP), - KEY(1, 3, KEY_RIGHT), - KEY(1, 4, KEY_ENTER), - KEY(2, 0, KEY_CAMERA), - 0, + KEY(2, 1, KEY_UP), + KEY(3, 1, KEY_RIGHT), + KEY(4, 1, KEY_ENTER), + KEY(0, 2, KEY_CAMERA), +}; + +static const struct matrix_keymap_data palmz71_keymap_data = { + .keymap = palmz71_keymap, + .keymap_size = ARRAY_SIZE(palmz71_keymap), }; static struct omap_kp_platform_data palmz71_kp_data = { .rows = 8, .cols = 8, - .keymap = palmz71_keymap, - .rep = 1, + .keymap_data = &palmz71_keymap_data, + .rep = true, .delay = 80, }; diff --git a/arch/arm/mach-omap1/board-perseus2.c b/arch/arm/mach-omap1/board-perseus2.c index 69fda218fb45..3c8ee8489458 100644 --- a/arch/arm/mach-omap1/board-perseus2.c +++ b/arch/arm/mach-omap1/board-perseus2.c @@ -36,36 +36,35 @@ #include #include -static int p2_keymap[] = { - KEY(0,0,KEY_UP), - KEY(0,1,KEY_RIGHT), - KEY(0,2,KEY_LEFT), - KEY(0,3,KEY_DOWN), - KEY(0,4,KEY_ENTER), - KEY(1,0,KEY_F10), - KEY(1,1,KEY_SEND), - KEY(1,2,KEY_END), - KEY(1,3,KEY_VOLUMEDOWN), - KEY(1,4,KEY_VOLUMEUP), - KEY(1,5,KEY_RECORD), - KEY(2,0,KEY_F9), - KEY(2,1,KEY_3), - KEY(2,2,KEY_6), - KEY(2,3,KEY_9), - KEY(2,4,KEY_KPDOT), - KEY(3,0,KEY_BACK), - KEY(3,1,KEY_2), - KEY(3,2,KEY_5), - KEY(3,3,KEY_8), - KEY(3,4,KEY_0), - KEY(3,5,KEY_KPSLASH), - KEY(4,0,KEY_HOME), - KEY(4,1,KEY_1), - KEY(4,2,KEY_4), - KEY(4,3,KEY_7), - KEY(4,4,KEY_KPASTERISK), - KEY(4,5,KEY_POWER), - 0 +static const unsigned int p2_keymap[] = { + KEY(0, 0, KEY_UP), + KEY(1, 0, KEY_RIGHT), + KEY(2, 0, KEY_LEFT), + KEY(3, 0, KEY_DOWN), + KEY(4, 0, KEY_ENTER), + KEY(0, 1, KEY_F10), + KEY(1, 1, KEY_SEND), + KEY(2, 1, KEY_END), + KEY(3, 1, KEY_VOLUMEDOWN), + KEY(4, 1, KEY_VOLUMEUP), + KEY(5, 1, KEY_RECORD), + KEY(0, 2, KEY_F9), + KEY(1, 2, KEY_3), + KEY(2, 2, KEY_6), + KEY(3, 2, KEY_9), + KEY(4, 2, KEY_KPDOT), + KEY(0, 3, KEY_BACK), + KEY(1, 3, KEY_2), + KEY(2, 3, KEY_5), + KEY(3, 3, KEY_8), + KEY(4, 3, KEY_0), + KEY(5, 3, KEY_KPSLASH), + KEY(0, 4, KEY_HOME), + KEY(1, 4, KEY_1), + KEY(2, 4, KEY_4), + KEY(3, 4, KEY_7), + KEY(4, 4, KEY_KPASTERISK), + KEY(5, 4, KEY_POWER), }; static struct smc91x_platdata smc91x_info = { @@ -211,13 +210,17 @@ static struct resource kp_resources[] = { }, }; +static const struct matrix_keymap_data p2_keymap_data = { + .keymap = p2_keymap, + .keymap_size = ARRAY_SIZE(p2_keymap), +}; + static struct omap_kp_platform_data kp_data = { .rows = 8, .cols = 8, - .keymap = p2_keymap, - .keymapsize = ARRAY_SIZE(p2_keymap), + .keymap_data = &p2_keymap_data, .delay = 4, - .dbounce = 1, + .dbounce = true, }; static struct platform_device kp_device = { diff --git a/arch/arm/mach-omap1/board-sx1.c b/arch/arm/mach-omap1/board-sx1.c index 463862c67819..d41fe2d0616a 100644 --- a/arch/arm/mach-omap1/board-sx1.c +++ b/arch/arm/mach-omap1/board-sx1.c @@ -164,36 +164,35 @@ EXPORT_SYMBOL(sx1_setusbpower); /*----------- Keypad -------------------------*/ -static int sx1_keymap[] = { - KEY(5, 3, GROUP_0 | 117), /* camera Qt::Key_F17 */ - KEY(0, 4, GROUP_0 | 114), /* voice memo Qt::Key_F14 */ - KEY(1, 4, GROUP_2 | 114), /* voice memo */ - KEY(2, 4, GROUP_3 | 114), /* voice memo */ +static const unsigned int sx1_keymap[] = { + KEY(3, 5, GROUP_0 | 117), /* camera Qt::Key_F17 */ + KEY(4, 0, GROUP_0 | 114), /* voice memo Qt::Key_F14 */ + KEY(4, 1, GROUP_2 | 114), /* voice memo */ + KEY(4, 2, GROUP_3 | 114), /* voice memo */ KEY(0, 0, GROUP_1 | KEY_F12), /* red button Qt::Key_Hangup */ - KEY(4, 3, GROUP_1 | KEY_LEFT), - KEY(2, 3, GROUP_1 | KEY_DOWN), - KEY(1, 3, GROUP_1 | KEY_RIGHT), - KEY(0, 3, GROUP_1 | KEY_UP), + KEY(3, 4, GROUP_1 | KEY_LEFT), + KEY(3, 2, GROUP_1 | KEY_DOWN), + KEY(3, 1, GROUP_1 | KEY_RIGHT), + KEY(3, 0, GROUP_1 | KEY_UP), KEY(3, 3, GROUP_1 | KEY_POWER), /* joystick press or Qt::Key_Select */ - KEY(5, 0, GROUP_1 | KEY_1), - KEY(4, 0, GROUP_1 | KEY_2), - KEY(3, 0, GROUP_1 | KEY_3), - KEY(3, 4, GROUP_1 | KEY_4), + KEY(0, 5, GROUP_1 | KEY_1), + KEY(0, 4, GROUP_1 | KEY_2), + KEY(0, 3, GROUP_1 | KEY_3), + KEY(4, 3, GROUP_1 | KEY_4), KEY(4, 4, GROUP_1 | KEY_5), - KEY(5, 4, GROUP_1 | KEY_KPASTERISK),/* "*" */ - KEY(4, 1, GROUP_1 | KEY_6), - KEY(5, 1, GROUP_1 | KEY_7), - KEY(3, 1, GROUP_1 | KEY_8), - KEY(3, 2, GROUP_1 | KEY_9), - KEY(5, 2, GROUP_1 | KEY_0), - KEY(4, 2, GROUP_1 | 113), /* # F13 Toggle input method Qt::Key_F13 */ - KEY(0, 1, GROUP_1 | KEY_F11), /* green button Qt::Key_Call */ - KEY(1, 2, GROUP_1 | KEY_YEN), /* left soft Qt::Key_Context1 */ + KEY(4, 5, GROUP_1 | KEY_KPASTERISK),/* "*" */ + KEY(1, 4, GROUP_1 | KEY_6), + KEY(1, 5, GROUP_1 | KEY_7), + KEY(1, 3, GROUP_1 | KEY_8), + KEY(2, 3, GROUP_1 | KEY_9), + KEY(2, 5, GROUP_1 | KEY_0), + KEY(2, 4, GROUP_1 | 113), /* # F13 Toggle input method Qt::Key_F13 */ + KEY(1, 0, GROUP_1 | KEY_F11), /* green button Qt::Key_Call */ + KEY(2, 1, GROUP_1 | KEY_YEN), /* left soft Qt::Key_Context1 */ KEY(2, 2, GROUP_1 | KEY_F8), /* right soft Qt::Key_Back */ - KEY(2, 1, GROUP_1 | KEY_LEFTSHIFT), /* shift */ + KEY(1, 2, GROUP_1 | KEY_LEFTSHIFT), /* shift */ KEY(1, 1, GROUP_1 | KEY_BACKSPACE), /* C (clear) */ - KEY(0, 2, GROUP_1 | KEY_F7), /* menu Qt::Key_Menu */ - 0 + KEY(2, 0, GROUP_1 | KEY_F7), /* menu Qt::Key_Menu */ }; static struct resource sx1_kp_resources[] = { @@ -204,11 +203,15 @@ static struct resource sx1_kp_resources[] = { }, }; +static const struct matrix_keymap_data sx1_keymap_data = { + .keymap = sx1_keymap, + .keymap_size = ARRAY_SIZE(sx1_keymap), +}; + static struct omap_kp_platform_data sx1_kp_data = { .rows = 6, .cols = 6, - .keymap = sx1_keymap, - .keymapsize = ARRAY_SIZE(sx1_keymap), + .keymap_data = &sx1_keymap_data, .delay = 80, }; diff --git a/arch/arm/mach-omap2/board-h4.c b/arch/arm/mach-omap2/board-h4.c index 0a2d73cf036f..b386a403c379 100644 --- a/arch/arm/mach-omap2/board-h4.c +++ b/arch/arm/mach-omap2/board-h4.c @@ -51,38 +51,37 @@ static unsigned int row_gpios[6] = { 88, 89, 124, 11, 6, 96 }; static unsigned int col_gpios[7] = { 90, 91, 100, 36, 12, 97, 98 }; -static int h4_keymap[] = { +static const unsigned int h4_keymap[] = { KEY(0, 0, KEY_LEFT), - KEY(0, 1, KEY_RIGHT), - KEY(0, 2, KEY_A), - KEY(0, 3, KEY_B), - KEY(0, 4, KEY_C), - KEY(1, 0, KEY_DOWN), + KEY(1, 0, KEY_RIGHT), + KEY(2, 0, KEY_A), + KEY(3, 0, KEY_B), + KEY(4, 0, KEY_C), + KEY(0, 1, KEY_DOWN), KEY(1, 1, KEY_UP), - KEY(1, 2, KEY_E), - KEY(1, 3, KEY_F), - KEY(1, 4, KEY_G), - KEY(2, 0, KEY_ENTER), - KEY(2, 1, KEY_I), + KEY(2, 1, KEY_E), + KEY(3, 1, KEY_F), + KEY(4, 1, KEY_G), + KEY(0, 2, KEY_ENTER), + KEY(1, 2, KEY_I), KEY(2, 2, KEY_J), - KEY(2, 3, KEY_K), - KEY(2, 4, KEY_3), - KEY(3, 0, KEY_M), - KEY(3, 1, KEY_N), - KEY(3, 2, KEY_O), + KEY(3, 2, KEY_K), + KEY(4, 2, KEY_3), + KEY(0, 3, KEY_M), + KEY(1, 3, KEY_N), + KEY(2, 3, KEY_O), KEY(3, 3, KEY_P), - KEY(3, 4, KEY_Q), - KEY(4, 0, KEY_R), - KEY(4, 1, KEY_4), - KEY(4, 2, KEY_T), - KEY(4, 3, KEY_U), + KEY(4, 3, KEY_Q), + KEY(0, 4, KEY_R), + KEY(1, 4, KEY_4), + KEY(2, 4, KEY_T), + KEY(3, 4, KEY_U), KEY(4, 4, KEY_ENTER), - KEY(5, 0, KEY_V), - KEY(5, 1, KEY_W), - KEY(5, 2, KEY_L), - KEY(5, 3, KEY_S), - KEY(5, 4, KEY_ENTER), - 0 + KEY(0, 5, KEY_V), + KEY(1, 5, KEY_W), + KEY(2, 5, KEY_L), + KEY(3, 5, KEY_S), + KEY(4, 5, KEY_ENTER), }; static struct mtd_partition h4_partitions[] = { @@ -136,12 +135,16 @@ static struct platform_device h4_flash_device = { .resource = &h4_flash_resource, }; +static const struct matrix_keymap_data h4_keymap_data = { + .keymap = h4_keymap, + .keymap_size = ARRAY_SIZE(h4_keymap), +}; + static struct omap_kp_platform_data h4_kp_data = { .rows = 6, .cols = 7, - .keymap = h4_keymap, - .keymapsize = ARRAY_SIZE(h4_keymap), - .rep = 1, + .keymap_data = &h4_keymap_data, + .rep = true, .row_gpios = row_gpios, .col_gpios = col_gpios, }; diff --git a/arch/arm/plat-omap/include/plat/keypad.h b/arch/arm/plat-omap/include/plat/keypad.h index 3ae52ccc793c..793ce9d53294 100644 --- a/arch/arm/plat-omap/include/plat/keypad.h +++ b/arch/arm/plat-omap/include/plat/keypad.h @@ -10,16 +10,18 @@ #ifndef ASMARM_ARCH_KEYPAD_H #define ASMARM_ARCH_KEYPAD_H -#warning: Please update the board to use matrix_keypad.h instead +#ifndef CONFIG_ARCH_OMAP1 +#warning Please update the board to use matrix-keypad driver +#endif +#include struct omap_kp_platform_data { int rows; int cols; - int *keymap; - unsigned int keymapsize; - unsigned int rep:1; + const struct matrix_keymap_data *keymap_data; + bool rep; unsigned long delay; - unsigned int dbounce:1; + bool dbounce; /* specific to OMAP242x*/ unsigned int *row_gpios; unsigned int *col_gpios; @@ -28,18 +30,21 @@ struct omap_kp_platform_data { /* Group (0..3) -- when multiple keys are pressed, only the * keys pressed in the same group are considered as pressed. This is * in order to workaround certain crappy HW designs that produce ghost - * keypresses. */ -#define GROUP_0 (0 << 16) -#define GROUP_1 (1 << 16) -#define GROUP_2 (2 << 16) -#define GROUP_3 (3 << 16) + * keypresses. Two free bits, not used by neither row/col nor keynum, + * must be available for use as group bits. The below GROUP_SHIFT + * macro definition is based on some prior knowledge of the + * matrix_keypad defined KEY() macro internals. + */ +#define GROUP_SHIFT 14 +#define GROUP_0 (0 << GROUP_SHIFT) +#define GROUP_1 (1 << GROUP_SHIFT) +#define GROUP_2 (2 << GROUP_SHIFT) +#define GROUP_3 (3 << GROUP_SHIFT) #define GROUP_MASK GROUP_3 +#if KEY_MAX & GROUP_MASK +#error Group bits in conflict with keynum bits +#endif -#define KEY_PERSISTENT 0x00800000 -#define KEYNUM_MASK 0x00EFFFFF -#define KEY(col, row, val) (((col) << 28) | ((row) << 24) | (val)) -#define PERSISTENT_KEY(col, row) (((col) << 28) | ((row) << 24) | \ - KEY_PERSISTENT) #endif diff --git a/drivers/input/keyboard/omap-keypad.c b/drivers/input/keyboard/omap-keypad.c index a72e61ddca91..0e2a19cb43d8 100644 --- a/drivers/input/keyboard/omap-keypad.c +++ b/drivers/input/keyboard/omap-keypad.c @@ -65,7 +65,6 @@ struct omap_kp { static DECLARE_TASKLET_DISABLED(kp_tasklet, omap_kp_tasklet, 0); -static int *keymap; static unsigned int *row_gpios; static unsigned int *col_gpios; @@ -162,20 +161,11 @@ static void omap_kp_scan_keypad(struct omap_kp *omap_kp, unsigned char *state) } } -static inline int omap_kp_find_key(int col, int row) -{ - int i, key; - - key = KEY(col, row, 0); - for (i = 0; keymap[i] != 0; i++) - if ((keymap[i] & 0xff000000) == key) - return keymap[i] & 0x00ffffff; - return -1; -} - static void omap_kp_tasklet(unsigned long data) { struct omap_kp *omap_kp_data = (struct omap_kp *) data; + unsigned short *keycodes = omap_kp_data->input->keycode; + unsigned int row_shift = get_count_order(omap_kp_data->cols); unsigned char new_state[8], changed, key_down = 0; int col, row; int spurious = 0; @@ -199,7 +189,7 @@ static void omap_kp_tasklet(unsigned long data) row, (new_state[col] & (1 << row)) ? "pressed" : "released"); #else - key = omap_kp_find_key(col, row); + key = keycodes[MATRIX_SCAN_CODE(row, col, row_shift)]; if (key < 0) { printk(KERN_WARNING "omap-keypad: Spurious key event %d-%d\n", @@ -298,13 +288,18 @@ static int __devinit omap_kp_probe(struct platform_device *pdev) struct input_dev *input_dev; struct omap_kp_platform_data *pdata = pdev->dev.platform_data; int i, col_idx, row_idx, irq_idx, ret; + unsigned int row_shift, keycodemax; - if (!pdata->rows || !pdata->cols || !pdata->keymap) { - printk(KERN_ERR "No rows, cols or keymap from pdata\n"); + if (!pdata->rows || !pdata->cols || !pdata->keymap_data) { + printk(KERN_ERR "No rows, cols or keymap_data from pdata\n"); return -EINVAL; } - omap_kp = kzalloc(sizeof(struct omap_kp), GFP_KERNEL); + row_shift = get_count_order(pdata->cols); + keycodemax = pdata->rows << row_shift; + + omap_kp = kzalloc(sizeof(struct omap_kp) + + keycodemax * sizeof(unsigned short), GFP_KERNEL); input_dev = input_allocate_device(); if (!omap_kp || !input_dev) { kfree(omap_kp); @@ -320,7 +315,9 @@ static int __devinit omap_kp_probe(struct platform_device *pdev) if (!cpu_is_omap24xx()) omap_writew(1, OMAP1_MPUIO_BASE + OMAP_MPUIO_KBD_MASKIT); - keymap = pdata->keymap; + input_dev->keycode = &omap_kp[1]; + input_dev->keycodesize = sizeof(unsigned short); + input_dev->keycodemax = keycodemax; if (pdata->rep) __set_bit(EV_REP, input_dev->evbit); @@ -374,8 +371,8 @@ static int __devinit omap_kp_probe(struct platform_device *pdev) /* setup input device */ __set_bit(EV_KEY, input_dev->evbit); - for (i = 0; keymap[i] != 0; i++) - __set_bit(keymap[i] & KEY_MAX, input_dev->keybit); + matrix_keypad_build_keymap(pdata->keymap_data, row_shift, + input_dev->keycode, input_dev->keybit); input_dev->name = "omap-keypad"; input_dev->phys = "omap-keypad/input0"; input_dev->dev.parent = &pdev->dev; @@ -416,7 +413,7 @@ static int __devinit omap_kp_probe(struct platform_device *pdev) return 0; err5: for (i = irq_idx - 1; i >=0; i--) - free_irq(row_gpios[i], 0); + free_irq(row_gpios[i], NULL); err4: input_unregister_device(omap_kp->input); input_dev = NULL; @@ -447,11 +444,11 @@ static int __devexit omap_kp_remove(struct platform_device *pdev) gpio_free(col_gpios[i]); for (i = 0; i < omap_kp->rows; i++) { gpio_free(row_gpios[i]); - free_irq(gpio_to_irq(row_gpios[i]), 0); + free_irq(gpio_to_irq(row_gpios[i]), NULL); } } else { omap_writew(1, OMAP1_MPUIO_BASE + OMAP_MPUIO_KBD_MASKIT); - free_irq(omap_kp->irq, 0); + free_irq(omap_kp->irq, NULL); } del_timer_sync(&omap_kp->timer); diff --git a/include/linux/input/matrix_keypad.h b/include/linux/input/matrix_keypad.h index 80352ad6581a..697474691749 100644 --- a/include/linux/input/matrix_keypad.h +++ b/include/linux/input/matrix_keypad.h @@ -9,7 +9,7 @@ #define KEY(row, col, val) ((((row) & (MATRIX_MAX_ROWS - 1)) << 24) |\ (((col) & (MATRIX_MAX_COLS - 1)) << 16) |\ - (val & 0xffff)) + ((val) & 0xffff)) #define KEY_ROW(k) (((k) >> 24) & 0xff) #define KEY_COL(k) (((k) >> 16) & 0xff) -- cgit v1.2.3