From 4a2490eac897e3648c4800b1068b56b7e1ad91b3 Mon Sep 17 00:00:00 2001 From: "Mark F. Brown" Date: Fri, 3 Sep 2010 18:28:06 -0400 Subject: ARM: pxa: moved pxa27x_keypad.h to platform pxa directory mach-mmp utilizes pxa27x_keypad code so we need to move header to platform pxa directory. Signed-off-by: Mark F. Brown Signed-off-by: Eric Miao --- arch/arm/plat-pxa/include/plat/pxa27x_keypad.h | 59 ++++++++++++++++++++++++++ 1 file changed, 59 insertions(+) create mode 100644 arch/arm/plat-pxa/include/plat/pxa27x_keypad.h (limited to 'arch/arm/plat-pxa') diff --git a/arch/arm/plat-pxa/include/plat/pxa27x_keypad.h b/arch/arm/plat-pxa/include/plat/pxa27x_keypad.h new file mode 100644 index 000000000000..7b4eadc6df3a --- /dev/null +++ b/arch/arm/plat-pxa/include/plat/pxa27x_keypad.h @@ -0,0 +1,59 @@ +#ifndef __ASM_ARCH_PXA27x_KEYPAD_H +#define __ASM_ARCH_PXA27x_KEYPAD_H + +#include +#include + +#define MAX_MATRIX_KEY_ROWS (8) +#define MAX_MATRIX_KEY_COLS (8) +#define MATRIX_ROW_SHIFT (3) +#define MAX_DIRECT_KEY_NUM (8) + +/* pxa3xx keypad platform specific parameters + * + * NOTE: + * 1. direct_key_num indicates the number of keys in the direct keypad + * _plus_ the number of rotary-encoder sensor inputs, this can be + * left as 0 if only rotary encoders are enabled, the driver will + * automatically calculate this + * + * 2. direct_key_map is the key code map for the direct keys, if rotary + * encoder(s) are enabled, direct key 0/1(2/3) will be ignored + * + * 3. rotary can be either interpreted as a relative input event (e.g. + * REL_WHEEL/REL_HWHEEL) or specific keys (e.g. UP/DOWN/LEFT/RIGHT) + * + * 4. matrix key and direct key will use the same debounce_interval by + * default, which should be sufficient in most cases + */ +struct pxa27x_keypad_platform_data { + + /* code map for the matrix keys */ + unsigned int matrix_key_rows; + unsigned int matrix_key_cols; + unsigned int *matrix_key_map; + int matrix_key_map_size; + + /* direct keys */ + int direct_key_num; + unsigned int direct_key_map[MAX_DIRECT_KEY_NUM]; + + /* rotary encoders 0 */ + int enable_rotary0; + int rotary0_rel_code; + int rotary0_up_key; + int rotary0_down_key; + + /* rotary encoders 1 */ + int enable_rotary1; + int rotary1_rel_code; + int rotary1_up_key; + int rotary1_down_key; + + /* key debounce interval */ + unsigned int debounce_interval; +}; + +extern void pxa_set_keypad_info(struct pxa27x_keypad_platform_data *info); + +#endif /* __ASM_ARCH_PXA27x_KEYPAD_H */ -- cgit v1.2.3 From 3587c258078479824342f33dc513ca7c66d729bc Mon Sep 17 00:00:00 2001 From: "Mark F. Brown" Date: Fri, 3 Sep 2010 18:28:09 -0400 Subject: ARM: pxa27x_keypad: added wakeup event handler for keypad interrupts mach-mmp needs to clear wake event in order to clear the keypad interrupt Signed-off-by: Mark F. Brown Signed-off-by: Eric Miao --- arch/arm/plat-pxa/include/plat/pxa27x_keypad.h | 10 ++++++++++ drivers/input/keyboard/pxa27x_keypad.c | 10 ++++++++++ 2 files changed, 20 insertions(+) (limited to 'arch/arm/plat-pxa') diff --git a/arch/arm/plat-pxa/include/plat/pxa27x_keypad.h b/arch/arm/plat-pxa/include/plat/pxa27x_keypad.h index 7b4eadc6df3a..abcc36eb1242 100644 --- a/arch/arm/plat-pxa/include/plat/pxa27x_keypad.h +++ b/arch/arm/plat-pxa/include/plat/pxa27x_keypad.h @@ -25,6 +25,13 @@ * * 4. matrix key and direct key will use the same debounce_interval by * default, which should be sufficient in most cases + * + * pxa168 keypad platform specific parameter + * + * NOTE: + * clear_wakeup_event callback is a workaround required to clear the + * keypad interrupt. The keypad wake must be cleared in addition to + * reading the MI/DI bits in the KPC register. */ struct pxa27x_keypad_platform_data { @@ -52,6 +59,9 @@ struct pxa27x_keypad_platform_data { /* key debounce interval */ unsigned int debounce_interval; + + /* clear wakeup event requirement for pxa168 */ + void (*clear_wakeup_event)(void); }; extern void pxa_set_keypad_info(struct pxa27x_keypad_platform_data *info); diff --git a/drivers/input/keyboard/pxa27x_keypad.c b/drivers/input/keyboard/pxa27x_keypad.c index 731bd88bb076..4b0ec35259a1 100644 --- a/drivers/input/keyboard/pxa27x_keypad.c +++ b/drivers/input/keyboard/pxa27x_keypad.c @@ -330,11 +330,21 @@ static void pxa27x_keypad_scan_direct(struct pxa27x_keypad *keypad) keypad->direct_key_state = new_state; } +static void clear_wakeup_event(struct pxa27x_keypad *keypad) +{ + struct pxa27x_keypad_platform_data *pdata = keypad->pdata; + + if (pdata->clear_wakeup_event) + (pdata->clear_wakeup_event)(); +} + static irqreturn_t pxa27x_keypad_irq_handler(int irq, void *dev_id) { struct pxa27x_keypad *keypad = dev_id; unsigned long kpc = keypad_readl(KPC); + clear_wakeup_event(keypad); + if (kpc & KPC_DI) pxa27x_keypad_scan_direct(keypad); -- cgit v1.2.3