From 10c55cacb8b20518fddf92de43fbfb198f288eb2 Mon Sep 17 00:00:00 2001 From: Aaron Armstrong Skomra Date: Wed, 25 Jan 2017 12:08:42 -0800 Subject: [PATCH] HID: wacom: generic: support LEDs Add support for the LEDs around the mode switch to the generic code path in support of the second generation Intuos Pro. Signed-off-by: Aaron Skomra Reviewed-by: Ping Cheng Signed-off-by: Jiri Kosina --- drivers/hid/wacom.h | 2 ++ drivers/hid/wacom_sys.c | 39 ++++++++++++++++++++++++++++++++++++--- drivers/hid/wacom_wac.c | 14 +++++++++++++- drivers/hid/wacom_wac.h | 1 + 4 files changed, 52 insertions(+), 4 deletions(-) diff --git a/drivers/hid/wacom.h b/drivers/hid/wacom.h index 0e7b840bb80b..d0d7dc1572ca 100644 --- a/drivers/hid/wacom.h +++ b/drivers/hid/wacom.h @@ -168,6 +168,7 @@ struct wacom { struct work_struct remote_work; struct delayed_work init_work; struct wacom_remote *remote; + bool generic_has_leds; struct wacom_leds { struct wacom_group_leds *groups; unsigned int count; @@ -220,4 +221,5 @@ struct wacom_led *wacom_led_find(struct wacom *wacom, unsigned int group, unsigned int id); struct wacom_led *wacom_led_next(struct wacom *wacom, struct wacom_led *cur); int wacom_equivalent_usage(int usage); +int wacom_initialize_leds(struct wacom *wacom); #endif diff --git a/drivers/hid/wacom_sys.c b/drivers/hid/wacom_sys.c index a8e68dc2ca99..3586acbdb467 100644 --- a/drivers/hid/wacom_sys.c +++ b/drivers/hid/wacom_sys.c @@ -771,8 +771,13 @@ static int wacom_led_control(struct wacom *wacom) if (!buf) return -ENOMEM; - if (wacom->wacom_wac.features.type >= INTUOS5S && - wacom->wacom_wac.features.type <= INTUOSPL) { + if (wacom->wacom_wac.features.type == HID_GENERIC) { + buf[0] = WAC_CMD_LED_CONTROL_GENERIC; + buf[1] = wacom->led.llv; + buf[2] = wacom->led.groups[0].select & 0x03; + + } else 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: @@ -1042,6 +1047,17 @@ static struct attribute_group intuos5_led_attr_group = { .attrs = intuos5_led_attrs, }; +static struct attribute *generic_led_attrs[] = { + &dev_attr_status0_luminance.attr, + &dev_attr_status_led0_select.attr, + NULL +}; + +static struct attribute_group generic_led_attr_group = { + .name = "wacom_led", + .attrs = generic_led_attrs, +}; + struct wacom_sysfs_group_devres { struct attribute_group *group; struct kobject *root; @@ -1363,7 +1379,7 @@ static int wacom_leds_alloc_and_register(struct wacom *wacom, int group_count, return 0; } -static int wacom_initialize_leds(struct wacom *wacom) +int wacom_initialize_leds(struct wacom *wacom) { int error; @@ -1372,6 +1388,23 @@ static int wacom_initialize_leds(struct wacom *wacom) /* Initialize default values */ switch (wacom->wacom_wac.features.type) { + case HID_GENERIC: + if (!wacom->generic_has_leds) + return 0; + wacom->led.llv = 100; + wacom->led.max_llv = 100; + + error = wacom_leds_alloc_and_register(wacom, 1, 4, false); + if (error) { + hid_err(wacom->hdev, + "cannot create leds err: %d\n", error); + return error; + } + + error = wacom_devm_sysfs_create_group(wacom, + &generic_led_attr_group); + break; + case INTUOS4S: case INTUOS4: case INTUOS4WL: diff --git a/drivers/hid/wacom_wac.c b/drivers/hid/wacom_wac.c index 06d152a286a0..0dad786d2135 100644 --- a/drivers/hid/wacom_wac.c +++ b/drivers/hid/wacom_wac.c @@ -43,6 +43,8 @@ static void wacom_report_numbered_buttons(struct input_dev *input_dev, static int wacom_numbered_button_to_key(int n); +static void wacom_update_led(struct wacom *wacom, int button_count, int mask, + int group); /* * Percent of battery capacity for Graphire. * 8th value means AC online and show 100% capacity. @@ -1715,12 +1717,14 @@ static void wacom_wac_pad_usage_mapping(struct hid_device *hdev, wacom_map_usage(input, usage, field, EV_ABS, ABS_Z, 0); features->device_type |= WACOM_DEVICETYPE_PAD; break; + case WACOM_HID_WD_BUTTONCENTER: + wacom->generic_has_leds = true; + /* fall through */ case WACOM_HID_WD_BUTTONHOME: case WACOM_HID_WD_BUTTONUP: case WACOM_HID_WD_BUTTONDOWN: case WACOM_HID_WD_BUTTONLEFT: case WACOM_HID_WD_BUTTONRIGHT: - case WACOM_HID_WD_BUTTONCENTER: wacom_map_usage(input, usage, field, EV_KEY, wacom_numbered_button_to_key(features->numbered_buttons), 0); @@ -1797,7 +1801,9 @@ static void wacom_wac_pad_event(struct hid_device *hdev, struct hid_field *field struct wacom *wacom = hid_get_drvdata(hdev); struct wacom_wac *wacom_wac = &wacom->wacom_wac; struct input_dev *input = wacom_wac->pad_input; + struct wacom_features *features = &wacom_wac->features; unsigned equivalent_usage = wacom_equivalent_usage(usage->hid); + int i; /* * Avoid reporting this event and setting inrange_state if this usage @@ -1824,6 +1830,12 @@ static void wacom_wac_pad_event(struct hid_device *hdev, struct hid_field *field input_sync(wacom_wac->shared->touch_input); } break; + + case WACOM_HID_WD_BUTTONCENTER: + for (i = 0; i < wacom->led.count; i++) + wacom_update_led(wacom, features->numbered_buttons, + value, i); + /* fall through*/ default: input_event(input, usage->type, usage->code, value); break; diff --git a/drivers/hid/wacom_wac.h b/drivers/hid/wacom_wac.h index 4feaf94fb08b..857ccee16f38 100644 --- a/drivers/hid/wacom_wac.h +++ b/drivers/hid/wacom_wac.h @@ -79,6 +79,7 @@ #define WAC_CMD_ICON_XFER 0x23 #define WAC_CMD_ICON_BT_XFER 0x26 #define WAC_CMD_DELETE_PAIRING 0x20 +#define WAC_CMD_LED_CONTROL_GENERIC 0x32 #define WAC_CMD_UNPAIR_ALL 0xFF #define WAC_CMD_WL_INTUOSP2 0x82 -- 2.20.1