diff options
Diffstat (limited to 'drivers/input/tablet/wacom_sys.c')
| -rw-r--r-- | drivers/input/tablet/wacom_sys.c | 1257 |
1 files changed, 0 insertions, 1257 deletions
diff --git a/drivers/input/tablet/wacom_sys.c b/drivers/input/tablet/wacom_sys.c deleted file mode 100644 index 06e304b3bbfd..000000000000 --- a/drivers/input/tablet/wacom_sys.c +++ /dev/null @@ -1,1257 +0,0 @@ -/* - * drivers/input/tablet/wacom_sys.c - * - * USB Wacom tablet support - system specific code - */ - -/* - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - */ - -#include "wacom_wac.h" -#include "wacom.h" -#include <linux/hid.h> - -#define WAC_MSG_RETRIES 5 - -#define WAC_CMD_LED_CONTROL 0x20 -#define WAC_CMD_ICON_START 0x21 -#define WAC_CMD_ICON_XFER 0x23 -#define WAC_CMD_RETRIES 10 - -static int wacom_get_report(struct hid_device *hdev, u8 type, u8 id, - void *buf, size_t size, unsigned int retries) -{ - int retval; - - do { - retval = hid_hw_raw_request(hdev, id, buf, size, type, - HID_REQ_GET_REPORT); - } while ((retval == -ETIMEDOUT || retval == -EPIPE) && --retries); - - return retval; -} - -static int wacom_set_report(struct hid_device *hdev, u8 type, u8 id, - void *buf, size_t size, unsigned int retries) -{ - int retval; - - do { - retval = hid_hw_raw_request(hdev, id, buf, size, type, - HID_REQ_SET_REPORT); - } while ((retval == -ETIMEDOUT || retval == -EPIPE) && --retries); - - return retval; -} - -static int wacom_raw_event(struct hid_device *hdev, struct hid_report *report, - u8 *raw_data, int size) -{ - struct wacom *wacom = hid_get_drvdata(hdev); - - if (size > WACOM_PKGLEN_MAX) - return 1; - - memcpy(wacom->wacom_wac.data, raw_data, size); - - wacom_wac_irq(&wacom->wacom_wac, size); - - return 0; -} - -static int wacom_open(struct input_dev *dev) -{ - struct wacom *wacom = input_get_drvdata(dev); - int retval; - - mutex_lock(&wacom->lock); - retval = hid_hw_open(wacom->hdev); - mutex_unlock(&wacom->lock); - - return retval; -} - -static void wacom_close(struct input_dev *dev) -{ - struct wacom *wacom = input_get_drvdata(dev); - - mutex_lock(&wacom->lock); - hid_hw_close(wacom->hdev); - mutex_unlock(&wacom->lock); -} - -/* - * Calculate the resolution of the X or Y axis using hidinput_calc_abs_res. - */ -static int wacom_calc_hid_res(int logical_extents, int physical_extents, - unsigned unit, int exponent) -{ - struct hid_field field = { - .logical_maximum = logical_extents, - .physical_maximum = physical_extents, - .unit = unit, - .unit_exponent = exponent, - }; - - return hidinput_calc_abs_res(&field, ABS_X); -} - -static void wacom_feature_mapping(struct hid_device *hdev, - struct hid_field *field, struct hid_usage *usage) -{ - struct wacom *wacom = hid_get_drvdata(hdev); - struct wacom_features *features = &wacom->wacom_wac.features; - - switch (usage->hid) { - case HID_DG_CONTACTMAX: - /* leave touch_max as is if predefined */ - if (!features->touch_max) - features->touch_max = field->value[0]; - break; - } -} - -/* - * Interface Descriptor of wacom devices can be incomplete and - * inconsistent so wacom_features table is used to store stylus - * device's packet lengths, various maximum values, and tablet - * resolution based on product ID's. - * - * For devices that contain 2 interfaces, wacom_features table is - * inaccurate for the touch interface. Since the Interface Descriptor - * for touch interfaces has pretty complete data, this function exists - * to query tablet for this missing information instead of hard coding in - * an additional table. - * - * A typical Interface Descriptor for a stylus will contain a - * boot mouse application collection that is not of interest and this - * function will ignore it. - * - * It also contains a digitizer application collection that also is not - * of interest since any information it contains would be duplicate - * of what is in wacom_features. Usually it defines a report of an array - * of bytes that could be used as max length of the stylus packet returned. - * If it happens to define a Digitizer-Stylus Physical Collection then - * the X and Y logical values contain valid data but it is ignored. - * - * A typical Interface Descriptor for a touch interface will contain a - * Digitizer-Finger Physical Collection which will define both logical - * X/Y maximum as well as the physical size of tablet. Since touch - * interfaces haven't supported pressure or distance, this is enough - * information to override invalid values in the wacom_features table. - * - * Intuos5 touch interface and 3rd gen Bamboo Touch do not contain useful - * data. We deal with them after returning from this function. - */ -static void wacom_usage_mapping(struct hid_device *hdev, - struct hid_field *field, struct hid_usage *usage) -{ - struct wacom *wacom = hid_get_drvdata(hdev); - struct wacom_features *features = &wacom->wacom_wac.features; - bool finger = (field->logical == HID_DG_FINGER) || - (field->physical == HID_DG_FINGER); - bool pen = (field->logical == HID_DG_STYLUS) || - (field->physical == HID_DG_STYLUS); - - /* - * Requiring Stylus Usage will ignore boot mouse - * X/Y values and some cases of invalid Digitizer X/Y - * values commonly reported. - */ - if (!pen && !finger) - return; - - if (finger && !features->touch_max) - /* touch device at least supports one touch point */ - features->touch_max = 1; - - switch (usage->hid) { - case HID_GD_X: - features->x_max = field->logical_maximum; - if (finger) { - features->device_type = BTN_TOOL_FINGER; - features->x_phy = field->physical_maximum; - if (features->type != BAMBOO_PT) { - features->unit = field->unit; - features->unitExpo = field->unit_exponent; - } - } else { - features->device_type = BTN_TOOL_PEN; - } - break; - case HID_GD_Y: - features->y_max = field->logical_maximum; - if (finger) { - features->y_phy = field->physical_maximum; - if (features->type != BAMBOO_PT) { - features->unit = field->unit; - features->unitExpo = field->unit_exponent; - } - } - break; - case HID_DG_TIPPRESSURE: - if (pen) - features->pressure_max = field->logical_maximum; - break; - } -} - -static void wacom_parse_hid(struct hid_device *hdev, - struct wacom_features *features) -{ - struct hid_report_enum *rep_enum; - struct hid_report *hreport; - int i, j; - - /* check features first */ - rep_enum = &hdev->report_enum[HID_FEATURE_REPORT]; - list_for_each_entry(hreport, &rep_enum->report_list, list) { - for (i = 0; i < hreport->maxfield; i++) { - /* Ignore if report count is out of bounds. */ - if (hreport->field[i]->report_count < 1) - continue; - - for (j = 0; j < hreport->field[i]->maxusage; j++) { - wacom_feature_mapping(hdev, hreport->field[i], - hreport->field[i]->usage + j); - } - } - } - - /* now check the input usages */ - rep_enum = &hdev->report_enum[HID_INPUT_REPORT]; - list_for_each_entry(hreport, &rep_enum->report_list, list) { - - if (!hreport->maxfield) - continue; - - for (i = 0; i < hreport->maxfield; i++) - for (j = 0; j < hreport->field[i]->maxusage; j++) - wacom_usage_mapping(hdev, hreport->field[i], - hreport->field[i]->usage + j); - } -} - -static int wacom_set_device_mode(struct hid_device *hdev, int report_id, - int length, int mode) -{ - unsigned char *rep_data; - int error = -ENOMEM, limit = 0; - - rep_data = kzalloc(length, GFP_KERNEL); - if (!rep_data) - return error; - - do { - rep_data[0] = report_id; - rep_data[1] = mode; - - error = wacom_set_report(hdev, HID_FEATURE_REPORT, - report_id, rep_data, length, 1); - if (error >= 0) - error = wacom_get_report(hdev, HID_FEATURE_REPORT, - report_id, rep_data, length, 1); - } while ((error < 0 || rep_data[1] != mode) && limit++ < WAC_MSG_RETRIES); - - kfree(rep_data); - - return error < 0 ? error : 0; -} - -/* - * Switch the tablet into its most-capable mode. Wacom tablets are - * typically configured to power-up in a mode which sends mouse-like - * reports to the OS. To get absolute position, pressure data, etc. - * from the tablet, it is necessary to switch the tablet out of this - * mode and into one which sends the full range of tablet data. - */ -static int wacom_query_tablet_data(struct hid_device *hdev, - struct wacom_features *features) -{ - if (features->device_type == BTN_TOOL_FINGER) { - if (features->type > TABLETPC) { - /* MT Tablet PC touch */ - return wacom_set_device_mode(hdev, 3, 4, 4); - } - else if (features->type == WACOM_24HDT || features->type == CINTIQ_HYBRID) { - return wacom_set_device_mode(hdev, 18, 3, 2); - } - } else if (features->device_type == BTN_TOOL_PEN) { - if (features->type <= BAMBOO_PT && features->type != WIRELESS) { - return wacom_set_device_mode(hdev, 2, 2, 2); - } - } - - return 0; -} - -static void wacom_retrieve_hid_descriptor(struct hid_device *hdev, - struct wacom_features *features) -{ - struct wacom *wacom = hid_get_drvdata(hdev); - struct usb_interface *intf = wacom->intf; - - /* default features */ - features->device_type = BTN_TOOL_PEN; - features->x_fuzz = 4; - features->y_fuzz = 4; - features->pressure_fuzz = 0; - features->distance_fuzz = 0; - - /* - * The wireless device HID is basic and layout conflicts with - * other tablets (monitor and touch interface can look like pen). - * Skip the query for this type and modify defaults based on - * interface number. - */ - if (features->type == WIRELESS) { - if (intf->cur_altsetting->desc.bInterfaceNumber == 0) { - features->device_type = 0; - } else if (intf->cur_altsetting->desc.bInterfaceNumber == 2) { - features->device_type = BTN_TOOL_FINGER; - features->pktlen = WACOM_PKGLEN_BBTOUCH3; - } - } - - /* only devices that support touch need to retrieve the info */ - if (features->type < BAMBOO_PT) - return; - - wacom_parse_hid(hdev, features); -} - -struct wacom_hdev_data { - struct list_head list; - struct kref kref; - struct hid_device *dev; - struct wacom_shared shared; -}; - -static LIST_HEAD(wacom_udev_list); -static DEFINE_MUTEX(wacom_udev_list_lock); - -static bool wacom_are_sibling(struct hid_device *hdev, - struct hid_device *sibling) -{ - struct wacom *wacom = hid_get_drvdata(hdev); - struct wacom_features *features = &wacom->wacom_wac.features; - int vid = features->oVid; - int pid = features->oPid; - int n1,n2; - - if (vid == 0 && pid == 0) { - vid = hdev->vendor; - pid = hdev->product; - } - - if (vid != sibling->vendor || pid != sibling->product) - return false; - - /* Compare the physical path. */ - n1 = strrchr(hdev->phys, '.') - hdev->phys; - n2 = strrchr(sibling->phys, '.') - sibling->phys; - if (n1 != n2 || n1 <= 0 || n2 <= 0) - return false; - - return !strncmp(hdev->phys, sibling->phys, n1); -} - -static struct wacom_hdev_data *wacom_get_hdev_data(struct hid_device *hdev) -{ - struct wacom_hdev_data *data; - - list_for_each_entry(data, &wacom_udev_list, list) { - if (wacom_are_sibling(hdev, data->dev)) { - kref_get(&data->kref); - return data; - } - } - - return NULL; -} - -static int wacom_add_shared_data(struct hid_device *hdev) -{ - struct wacom *wacom = hid_get_drvdata(hdev); - struct wacom_wac *wacom_wac = &wacom->wacom_wac; - struct wacom_hdev_data *data; - int retval = 0; - - mutex_lock(&wacom_udev_list_lock); - - data = wacom_get_hdev_data(hdev); - if (!data) { - data = kzalloc(sizeof(struct wacom_hdev_data), GFP_KERNEL); - if (!data) { - retval = -ENOMEM; - goto out; - } - - kref_init(&data->kref); - data->dev = hdev; - list_add_tail(&data->list, &wacom_udev_list); - } - - wacom_wac->shared = &data->shared; - -out: - mutex_unlock(&wacom_udev_list_lock); - return retval; -} - -static void wacom_release_shared_data(struct kref *kref) -{ - struct wacom_hdev_data *data = - container_of(kref, struct wacom_hdev_data, kref); - - mutex_lock(&wacom_udev_list_lock); - list_del(&data->list); - mutex_unlock(&wacom_udev_list_lock); - - kfree(data); -} - -static void wacom_remove_shared_data(struct wacom_wac *wacom) -{ - struct wacom_hdev_data *data; - - if (wacom->shared) { - data = container_of(wacom->shared, struct wacom_hdev_data, shared); - kref_put(&data->kref, wacom_release_shared_data); - wacom->shared = NULL; - } -} - -static int wacom_led_control(struct wacom *wacom) -{ - unsigned char *buf; - int retval; - - buf = kzalloc(9, GFP_KERNEL); - if (!buf) - return -ENOMEM; - - if (wacom->wacom_wac.features.type >= INTUOS5S && - wacom->wacom_wac.features.type <= INTUOSPL) { - /* - * Touch Ring and crop mark LED luminance may take on - * one of four values: - * 0 = Low; 1 = Medium; 2 = High; 3 = Off - */ - int ring_led = wacom->led.select[0] & 0x03; - int ring_lum = (((wacom->led.llv & 0x60) >> 5) - 1) & 0x03; - int crop_lum = 0; - - buf[0] = WAC_CMD_LED_CONTROL; - buf[1] = (crop_lum << 4) | (ring_lum << 2) | (ring_led); - } - else { - int led = wacom->led.select[0] | 0x4; - - if (wacom->wacom_wac.features.type == WACOM_21UX2 || - wacom->wacom_wac.features.type == WACOM_24HD) - led |= (wacom->led.select[1] << 4) | 0x40; - - buf[0] = WAC_CMD_LED_CONTROL; - buf[1] = led; - buf[2] = wacom->led.llv; - buf[3] = wacom->led.hlv; - buf[4] = wacom->led.img_lum; - } - - retval = wacom_set_report(wacom->hdev, HID_FEATURE_REPORT, - WAC_CMD_LED_CONTROL, buf, 9, WAC_CMD_RETRIES); - kfree(buf); - - return retval; -} - -static int wacom_led_putimage(struct wacom *wacom, int button_id, const void *img) -{ - unsigned char *buf; - int i, retval; - - buf = kzalloc(259, GFP_KERNEL); - if (!buf) - return -ENOMEM; - - /* Send 'start' command */ - buf[0] = WAC_CMD_ICON_START; - buf[1] = 1; - retval = wacom_set_report(wacom->hdev, HID_FEATURE_REPORT, - WAC_CMD_ICON_START, buf, 2, WAC_CMD_RETRIES); - if (retval < 0) - goto out; - - buf[0] = WAC_CMD_ICON_XFER; - buf[1] = button_id & 0x07; - for (i = 0; i < 4; i++) { - buf[2] = i; - memcpy(buf + 3, img + i * 256, 256); - - retval = wacom_set_report(wacom->hdev, HID_FEATURE_REPORT, - WAC_CMD_ICON_XFER, - buf, 259, WAC_CMD_RETRIES); - if (retval < 0) - break; - } - - /* Send 'stop' */ - buf[0] = WAC_CMD_ICON_START; - buf[1] = 0; - wacom_set_report(wacom->hdev, HID_FEATURE_REPORT, WAC_CMD_ICON_START, - buf, 2, WAC_CMD_RETRIES); - -out: - kfree(buf); - return retval; -} - -static ssize_t wacom_led_select_store(struct device *dev, int set_id, - const char *buf, size_t count) -{ - struct hid_device *hdev = container_of(dev, struct hid_device, dev); - struct wacom *wacom = hid_get_drvdata(hdev); - unsigned int id; - int err; - - err = kstrtouint(buf, 10, &id); - if (err) - return err; - - mutex_lock(&wacom->lock); - - wacom->led.select[set_id] = id & 0x3; - err = wacom_led_control(wacom); - - mutex_unlock(&wacom->lock); - - return err < 0 ? err : count; -} - -#define DEVICE_LED_SELECT_ATTR(SET_ID) \ -static ssize_t wacom_led##SET_ID##_select_store(struct device *dev, \ - struct device_attribute *attr, const char *buf, size_t count) \ -{ \ - return wacom_led_select_store(dev, SET_ID, buf, count); \ -} \ -static ssize_t wacom_led##SET_ID##_select_show(struct device *dev, \ - struct device_attribute *attr, char *buf) \ -{ \ - struct hid_device *hdev = container_of(dev, struct hid_device, dev);\ - struct wacom *wacom = hid_get_drvdata(hdev); \ - return snprintf(buf, 2, "%d\n", wacom->led.select[SET_ID]); \ -} \ -static DEVICE_ATTR(status_led##SET_ID##_select, S_IWUSR | S_IRUSR, \ - wacom_led##SET_ID##_select_show, \ - wacom_led##SET_ID##_select_store) - -DEVICE_LED_SELECT_ATTR(0); -DEVICE_LED_SELECT_ATTR(1); - -static ssize_t wacom_luminance_store(struct wacom *wacom, u8 *dest, - const char *buf, size_t count) -{ - unsigned int value; - int err; - - err = kstrtouint(buf, 10, &value); - if (err) - return err; - - mutex_lock(&wacom->lock); - - *dest = value & 0x7f; - err = wacom_led_control(wacom); - - mutex_unlock(&wacom->lock); - - return err < 0 ? err : count; -} - -#define DEVICE_LUMINANCE_ATTR(name, field) \ -static ssize_t wacom_##name##_luminance_store(struct device *dev, \ - struct device_attribute *attr, const char *buf, size_t count) \ -{ \ - struct hid_device *hdev = container_of(dev, struct hid_device, dev);\ - struct wacom *wacom = hid_get_drvdata(hdev); \ - \ - return wacom_luminance_store(wacom, &wacom->led.field, \ - buf, count); \ -} \ -static DEVICE_ATTR(name##_luminance, S_IWUSR, \ - NULL, wacom_##name##_luminance_store) - -DEVICE_LUMINANCE_ATTR(status0, llv); -DEVICE_LUMINANCE_ATTR(status1, hlv); -DEVICE_LUMINANCE_ATTR(buttons, img_lum); - -static ssize_t wacom_button_image_store(struct device *dev, int button_id, - const char *buf, size_t count) -{ - struct hid_device *hdev = container_of(dev, struct hid_device, dev); - struct wacom *wacom = hid_get_drvdata(hdev); - int err; - - if (count != 1024) - return -EINVAL; - - mutex_lock(&wacom->lock); - - err = wacom_led_putimage(wacom, button_id, buf); - - mutex_unlock(&wacom->lock); - - return err < 0 ? err : count; -} - -#define DEVICE_BTNIMG_ATTR(BUTTON_ID) \ -static ssize_t wacom_btnimg##BUTTON_ID##_store(struct device *dev, \ - struct device_attribute *attr, const char *buf, size_t count) \ -{ \ - return wacom_button_image_store(dev, BUTTON_ID, buf, count); \ -} \ -static DEVICE_ATTR(button##BUTTON_ID##_rawimg, S_IWUSR, \ - NULL, wacom_btnimg##BUTTON_ID##_store) - -DEVICE_BTNIMG_ATTR(0); -DEVICE_BTNIMG_ATTR(1); -DEVICE_BTNIMG_ATTR(2); -DEVICE_BTNIMG_ATTR(3); -DEVICE_BTNIMG_ATTR(4); -DEVICE_BTNIMG_ATTR(5); -DEVICE_BTNIMG_ATTR(6); -DEVICE_BTNIMG_ATTR(7); - -static struct attribute *cintiq_led_attrs[] = { - &dev_attr_status_led0_select.attr, - &dev_attr_status_led1_select.attr, - NULL -}; - -static struct attribute_group cintiq_led_attr_group = { - .name = "wacom_led", - .attrs = cintiq_led_attrs, -}; - -static struct attribute *intuos4_led_attrs[] = { - &dev_attr_status0_luminance.attr, - &dev_attr_status1_luminance.attr, - &dev_attr_status_led0_select.attr, - &dev_attr_buttons_luminance.attr, - &dev_attr_button0_rawimg.attr, - &dev_attr_button1_rawimg.attr, - &dev_attr_button2_rawimg.attr, - &dev_attr_button3_rawimg.attr, - &dev_attr_button4_rawimg.attr, - &dev_attr_button5_rawimg.attr, - &dev_attr_button6_rawimg.attr, - &dev_attr_button7_rawimg.attr, - NULL -}; - -static struct attribute_group intuos4_led_attr_group = { - .name = "wacom_led", - .attrs = intuos4_led_attrs, -}; - -static struct attribute *intuos5_led_attrs[] = { - &dev_attr_status0_luminance.attr, - &dev_attr_status_led0_select.attr, - NULL -}; - -static struct attribute_group intuos5_led_attr_group = { - .name = "wacom_led", - .attrs = intuos5_led_attrs, -}; - -static int wacom_initialize_leds(struct wacom *wacom) -{ - int error; - - /* Initialize default values */ - switch (wacom->wacom_wac.features.type) { - case INTUOS4S: - case INTUOS4: - case INTUOS4L: - wacom->led.select[0] = 0; - wacom->led.select[1] = 0; - wacom->led.llv = 10; - wacom->led.hlv = 20; - wacom->led.img_lum = 10; - error = sysfs_create_group(&wacom->hdev->dev.kobj, - &intuos4_led_attr_group); - break; - - case WACOM_24HD: - case WACOM_21UX2: - wacom->led.select[0] = 0; - wacom->led.select[1] = 0; - wacom->led.llv = 0; - wacom->led.hlv = 0; - wacom->led.img_lum = 0; - - error = sysfs_create_group(&wacom->hdev->dev.kobj, - &cintiq_led_attr_group); - break; - - case INTUOS5S: - case INTUOS5: - case INTUOS5L: - case INTUOSPS: - case INTUOSPM: - case INTUOSPL: - if (wacom->wacom_wac.features.device_type == BTN_TOOL_PEN) { - wacom->led.select[0] = 0; - wacom->led.select[1] = 0; - wacom->led.llv = 32; - wacom->led.hlv = 0; - wacom->led.img_lum = 0; - - error = sysfs_create_group(&wacom->hdev->dev.kobj, - &intuos5_led_attr_group); - } else - return 0; - break; - - default: - return 0; - } - - if (error) { - hid_err(wacom->hdev, - "cannot create sysfs group err: %d\n", error); - return error; - } - wacom_led_control(wacom); - - return 0; -} - -static void wacom_destroy_leds(struct wacom *wacom) -{ - switch (wacom->wacom_wac.features.type) { - case INTUOS4S: - case INTUOS4: - case INTUOS4L: - sysfs_remove_group(&wacom->hdev->dev.kobj, - &intuos4_led_attr_group); - break; - - case WACOM_24HD: - case WACOM_21UX2: - sysfs_remove_group(&wacom->hdev->dev.kobj, - &cintiq_led_attr_group); - break; - - case INTUOS5S: - case INTUOS5: - case INTUOS5L: - case INTUOSPS: - case INTUOSPM: - case INTUOSPL: - if (wacom->wacom_wac.features.device_type == BTN_TOOL_PEN) - sysfs_remove_group(&wacom->hdev->dev.kobj, - &intuos5_led_attr_group); - break; - } -} - -static enum power_supply_property wacom_battery_props[] = { - POWER_SUPPLY_PROP_SCOPE, - POWER_SUPPLY_PROP_CAPACITY -}; - -static int wacom_battery_get_property(struct power_supply *psy, - enum power_supply_property psp, - union power_supply_propval *val) -{ - struct wacom *wacom = container_of(psy, struct wacom, battery); - int ret = 0; - - switch (psp) { - case POWER_SUPPLY_PROP_SCOPE: - val->intval = POWER_SUPPLY_SCOPE_DEVICE; - break; - case POWER_SUPPLY_PROP_CAPACITY: - val->intval = - wacom->wacom_wac.battery_capacity * 100 / 31; - break; - default: - ret = -EINVAL; - break; - } - - return ret; -} - -static int wacom_initialize_battery(struct wacom *wacom) -{ - int error = 0; - - if (wacom->wacom_wac.features.quirks & WACOM_QUIRK_MONITOR) { - wacom->battery.properties = wacom_battery_props; - wacom->battery.num_properties = ARRAY_SIZE(wacom_battery_props); - wacom->battery.get_property = wacom_battery_get_property; - wacom->battery.name = "wacom_battery"; - wacom->battery.type = POWER_SUPPLY_TYPE_BATTERY; - wacom->battery.use_for_apm = 0; - - error = power_supply_register(&wacom->hdev->dev, - &wacom->battery); - - if (!error) - power_supply_powers(&wacom->battery, - &wacom->hdev->dev); - } - - return error; -} - -static void wacom_destroy_battery(struct wacom *wacom) -{ - if (wacom->wacom_wac.features.quirks & WACOM_QUIRK_MONITOR && - wacom->battery.dev) { - power_supply_unregister(&wacom->battery); - wacom->battery.dev = NULL; - } -} - -static struct input_dev *wacom_allocate_input(struct wacom *wacom) -{ - struct input_dev *input_dev; - struct hid_device *hdev = wacom->hdev; - struct wacom_wac *wacom_wac = &(wacom->wacom_wac); - - input_dev = input_allocate_device(); - if (!input_dev) - return NULL; - - input_dev->name = wacom_wac->name; - input_dev->phys = hdev->phys; - input_dev->dev.parent = &hdev->dev; - input_dev->open = wacom_open; - input_dev->close = wacom_close; - input_dev->uniq = hdev->uniq; - input_dev->id.bustype = hdev->bus; - input_dev->id.vendor = hdev->vendor; - input_dev->id.product = hdev->product; - input_dev->id.version = hdev->version; - input_set_drvdata(input_dev, wacom); - - return input_dev; -} - -static void wacom_unregister_inputs(struct wacom *wacom) -{ - if (wacom->wacom_wac.input) - input_unregister_device(wacom->wacom_wac.input); - if (wacom->wacom_wac.pad_input) - input_unregister_device(wacom->wacom_wac.pad_input); - wacom->wacom_wac.input = NULL; - wacom->wacom_wac.pad_input = NULL; -} - -static int wacom_register_inputs(struct wacom *wacom) -{ - struct input_dev *input_dev, *pad_input_dev; - struct wacom_wac *wacom_wac = &(wacom->wacom_wac); - int error; - - input_dev = wacom_allocate_input(wacom); - pad_input_dev = wacom_allocate_input(wacom); - if (!input_dev || !pad_input_dev) { - error = -ENOMEM; - goto fail1; - } - - wacom_wac->input = input_dev; - wacom_wac->pad_input = pad_input_dev; - wacom_wac->pad_input->name = wacom_wac->pad_name; - - error = wacom_setup_input_capabilities(input_dev, wacom_wac); - if (error) - goto fail2; - - error = input_register_device(input_dev); - if (error) - goto fail2; - - error = wacom_setup_pad_input_capabilities(pad_input_dev, wacom_wac); - if (error) { - /* no pad in use on this interface */ - input_free_device(pad_input_dev); - wacom_wac->pad_input = NULL; - pad_input_dev = NULL; - } else { - error = input_register_device(pad_input_dev); - if (error) - goto fail3; - } - - return 0; - -fail3: - input_unregister_device(input_dev); - input_dev = NULL; -fail2: - wacom_wac->input = NULL; - wacom_wac->pad_input = NULL; -fail1: - if (input_dev) - input_free_device(input_dev); - if (pad_input_dev) - input_free_device(pad_input_dev); - return error; -} - -static void wacom_wireless_work(struct work_struct *work) -{ - struct wacom *wacom = container_of(work, struct wacom, work); - struct usb_device *usbdev = wacom->usbdev; - struct wacom_wac *wacom_wac = &wacom->wacom_wac; - struct hid_device *hdev1, *hdev2; - struct wacom *wacom1, *wacom2; - struct wacom_wac *wacom_wac1, *wacom_wac2; - int error; - - /* - * Regardless if this is a disconnect or a new tablet, - * remove any existing input and battery devices. - */ - - wacom_destroy_battery(wacom); - - /* Stylus interface */ - hdev1 = usb_get_intfdata(usbdev->config->interface[1]); - wacom1 = hid_get_drvdata(hdev1); - wacom_wac1 = &(wacom1->wacom_wac); - wacom_unregister_inputs(wacom1); - - /* Touch interface */ - hdev2 = usb_get_intfdata(usbdev->config->interface[2]); - wacom2 = hid_get_drvdata(hdev2); - wacom_wac2 = &(wacom2->wacom_wac); - wacom_unregister_inputs(wacom2); - - if (wacom_wac->pid == 0) { - hid_info(wacom->hdev, "wireless tablet disconnected\n"); - } else { - const struct hid_device_id *id = wacom_ids; - - hid_info(wacom->hdev, "wireless tablet connected with PID %x\n", - wacom_wac->pid); - - while (id->bus) { - if (id->vendor == USB_VENDOR_ID_WACOM && - id->product == wacom_wac->pid) - break; - id++; - } - - if (!id->bus) { - hid_info(wacom->hdev, "ignoring unknown PID.\n"); - return; - } - - /* Stylus interface */ - wacom_wac1->features = - *((struct wacom_features *)id->driver_data); - wacom_wac1->features.device_type = BTN_TOOL_PEN; - snprintf(wacom_wac1->name, WACOM_NAME_MAX, "%s (WL) Pen", - wacom_wac1->features.name); - snprintf(wacom_wac1->pad_name, WACOM_NAME_MAX, "%s (WL) Pad", - wacom_wac1->features.name); - wacom_wac1->shared->touch_max = wacom_wac1->features.touch_max; - wacom_wac1->shared->type = wacom_wac1->features.type; - error = wacom_register_inputs(wacom1); - if (error) - goto fail; - - /* Touch interface */ - if (wacom_wac1->features.touch_max || - wacom_wac1->features.type == INTUOSHT) { - wacom_wac2->features = - *((struct wacom_features *)id->driver_data); - wacom_wac2->features.pktlen = WACOM_PKGLEN_BBTOUCH3; - wacom_wac2->features.device_type = BTN_TOOL_FINGER; - wacom_wac2->features.x_max = wacom_wac2->features.y_max = 4096; - if (wacom_wac2->features.touch_max) - snprintf(wacom_wac2->name, WACOM_NAME_MAX, - "%s (WL) Finger",wacom_wac2->features.name); - else - snprintf(wacom_wac2->name, WACOM_NAME_MAX, - "%s (WL) Pad",wacom_wac2->features.name); - snprintf(wacom_wac2->pad_name, WACOM_NAME_MAX, - "%s (WL) Pad", wacom_wac2->features.name); - error = wacom_register_inputs(wacom2); - if (error) - goto fail; - - if (wacom_wac1->features.type == INTUOSHT && - wacom_wac1->features.touch_max) - wacom_wac->shared->touch_input = wacom_wac2->input; - } - - error = wacom_initialize_battery(wacom); - if (error) - goto fail; - } - - return; - -fail: - wacom_unregister_inputs(wacom1); - wacom_unregister_inputs(wacom2); - return; -} - -/* - * Not all devices report physical dimensions from HID. - * Compute the default from hardcoded logical dimension - * and resolution before driver overwrites them. - */ -static void wacom_set_default_phy(struct wacom_features *features) -{ - if (features->x_resolution) { - features->x_phy = (features->x_max * 100) / - features->x_resolution; - features->y_phy = (features->y_max * 100) / - features->y_resolution; - } -} - -static void wacom_calculate_res(struct wacom_features *features) -{ - features->x_resolution = wacom_calc_hid_res(features->x_max, - features->x_phy, - features->unit, - features->unitExpo); - features->y_resolution = wacom_calc_hid_res(features->y_max, - features->y_phy, - features->unit, - features->unitExpo); -} - -static int wacom_hid_report_len(struct hid_report *report) -{ - /* equivalent to DIV_ROUND_UP(report->size, 8) + !!(report->id > 0) */ - return ((report->size - 1) >> 3) + 1 + (report->id > 0); -} - -static size_t wacom_compute_pktlen(struct hid_device *hdev) -{ - struct hid_report_enum *report_enum; - struct hid_report *report; - size_t size = 0; - - report_enum = hdev->report_enum + HID_INPUT_REPORT; - - list_for_each_entry(report, &report_enum->report_list, list) { - size_t report_size = wacom_hid_report_len(report); - if (report_size > size) - size = report_size; - } - - return size; -} - -static int wacom_probe(struct hid_device *hdev, - const struct hid_device_id *id) -{ - struct usb_interface *intf = to_usb_interface(hdev->dev.parent); - struct usb_device *dev = interface_to_usbdev(intf); - struct wacom *wacom; - struct wacom_wac *wacom_wac; - struct wacom_features *features; - int error; - - if (!id->driver_data) - return -EINVAL; - - wacom = kzalloc(sizeof(struct wacom), GFP_KERNEL); - if (!wacom) - return -ENOMEM; - - hid_set_drvdata(hdev, wacom); - wacom->hdev = hdev; - - /* ask for the report descriptor to be loaded by HID */ - error = hid_parse(hdev); - if (error) { - hid_err(hdev, "parse failed\n"); - goto fail1; - } - - wacom_wac = &wacom->wacom_wac; - wacom_wac->features = *((struct wacom_features *)id->driver_data); - features = &wacom_wac->features; - features->pktlen = wacom_compute_pktlen(hdev); - if (features->pktlen > WACOM_PKGLEN_MAX) { - error = -EINVAL; - goto fail1; - } - - if (features->check_for_hid_type && features->hid_type != hdev->type) { - error = -ENODEV; - goto fail1; - } - - wacom->usbdev = dev; - wacom->intf = intf; - mutex_init(&wacom->lock); - INIT_WORK(&wacom->work, wacom_wireless_work); - - /* set the default size in case we do not get them from hid */ - wacom_set_default_phy(features); - - /* Retrieve the physical and logical size for touch devices */ - wacom_retrieve_hid_descriptor(hdev, features); - - /* - * Intuos5 has no useful data about its touch interface in its - * HID descriptor. If this is the touch interface (PacketSize - * of WACOM_PKGLEN_BBTOUCH3), override the table values. - */ - if (features->type >= INTUOS5S && features->type <= INTUOSHT) { - if (features->pktlen == WACOM_PKGLEN_BBTOUCH3) { - features->device_type = BTN_TOOL_FINGER; - - features->x_max = 4096; - features->y_max = 4096; - } else { - features->device_type = BTN_TOOL_PEN; - } - } - - /* - * Same thing for Bamboo 3rd gen. - */ - if ((features->type == BAMBOO_PT) && - (features->pktlen == WACOM_PKGLEN_BBTOUCH3) && - (features->device_type == BTN_TOOL_PEN)) { - features->device_type = BTN_TOOL_FINGER; - - features->x_max = 4096; - features->y_max = 4096; - } - - wacom_setup_device_quirks(features); - - /* set unit to "100th of a mm" for devices not reported by HID */ - if (!features->unit) { - features->unit = 0x11; - features->unitExpo = -3; - } - wacom_calculate_res(features); - - strlcpy(wacom_wac->name, features->name, sizeof(wacom_wac->name)); - snprintf(wacom_wac->pad_name, sizeof(wacom_wac->pad_name), - "%s Pad", features->name); - - if (features->quirks & WACOM_QUIRK_MULTI_INPUT) { - /* Append the device type to the name */ - if (features->device_type != BTN_TOOL_FINGER) - strlcat(wacom_wac->name, " Pen", WACOM_NAME_MAX); - else if (features->touch_max) - strlcat(wacom_wac->name, " Finger", WACOM_NAME_MAX); - else - strlcat(wacom_wac->name, " Pad", WACOM_NAME_MAX); - - error = wacom_add_shared_data(hdev); - if (error) - goto fail1; - } - - error = wacom_initialize_leds(wacom); - if (error) - goto fail2; - - if (!(features->quirks & WACOM_QUIRK_NO_INPUT)) { - error = wacom_register_inputs(wacom); - if (error) - goto fail3; - } - - /* Note that if query fails it is not a hard failure */ - wacom_query_tablet_data(hdev, features); - - /* Regular HID work starts now */ - error = hid_hw_start(hdev, HID_CONNECT_HIDRAW); - if (error) { - hid_err(hdev, "hw start failed\n"); - goto fail4; - } - - if (features->quirks & WACOM_QUIRK_MONITOR) - error = hid_hw_open(hdev); - - if (wacom_wac->features.type == INTUOSHT && wacom_wac->features.touch_max) { - if (wacom_wac->features.device_type == BTN_TOOL_FINGER) - wacom_wac->shared->touch_input = wacom_wac->input; - } - - return 0; - - fail4: wacom_unregister_inputs(wacom); - fail3: wacom_destroy_leds(wacom); - fail2: wacom_remove_shared_data(wacom_wac); - fail1: kfree(wacom); - hid_set_drvdata(hdev, NULL); - return error; -} - -static void wacom_remove(struct hid_device *hdev) -{ - struct wacom *wacom = hid_get_drvdata(hdev); - - hid_hw_stop(hdev); - - cancel_work_sync(&wacom->work); - wacom_unregister_inputs(wacom); - wacom_destroy_battery(wacom); - wacom_destroy_leds(wacom); - wacom_remove_shared_data(&wacom->wacom_wac); - - hid_set_drvdata(hdev, NULL); - kfree(wacom); -} - -static int wacom_resume(struct hid_device *hdev) -{ - struct wacom *wacom = hid_get_drvdata(hdev); - struct wacom_features *features = &wacom->wacom_wac.features; - - mutex_lock(&wacom->lock); - - /* switch to wacom mode first */ - wacom_query_tablet_data(hdev, features); - wacom_led_control(wacom); - - mutex_unlock(&wacom->lock); - - return 0; -} - -static int wacom_reset_resume(struct hid_device *hdev) -{ - return wacom_resume(hdev); -} - -static struct hid_driver wacom_driver = { - .name = "wacom", - .id_table = wacom_ids, - .probe = wacom_probe, - .remove = wacom_remove, -#ifdef CONFIG_PM - .resume = wacom_resume, - .reset_resume = wacom_reset_resume, -#endif - .raw_event = wacom_raw_event, -}; -module_hid_driver(wacom_driver); |