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author | Daniel J. Ogorchock <djogorchock@gmail.com> | 2021-09-11 13:36:27 -0400 |
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committer | Jiri Kosina <jkosina@suse.cz> | 2021-10-27 10:05:51 +0200 |
commit | 697e5c7a34b0f69e1e438385cf85a9220069e079 (patch) | |
tree | 97e96060a6dffe73762c83a2a9869998167a959b /drivers/hid/hid-nintendo.c | |
parent | 08ebba5c27035094a4b8d3078f94d2aaac5de1fd (diff) | |
download | linux-stable-697e5c7a34b0f69e1e438385cf85a9220069e079.tar.gz linux-stable-697e5c7a34b0f69e1e438385cf85a9220069e079.tar.bz2 linux-stable-697e5c7a34b0f69e1e438385cf85a9220069e079.zip |
HID: nintendo: add home led support
This patch adds the ability to set the intensity level of the home
button's LED.
Signed-off-by: Daniel J. Ogorchock <djogorchock@gmail.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
Diffstat (limited to 'drivers/hid/hid-nintendo.c')
-rw-r--r-- | drivers/hid/hid-nintendo.c | 72 |
1 files changed, 68 insertions, 4 deletions
diff --git a/drivers/hid/hid-nintendo.c b/drivers/hid/hid-nintendo.c index c6c715a9ac7c..59cdb7dfa59c 100644 --- a/drivers/hid/hid-nintendo.c +++ b/drivers/hid/hid-nintendo.c @@ -199,7 +199,8 @@ static const char * const joycon_player_led_names[] = { struct joycon_ctlr { struct hid_device *hdev; struct input_dev *input; - struct led_classdev leds[JC_NUM_LEDS]; + struct led_classdev leds[JC_NUM_LEDS]; /* player leds */ + struct led_classdev home_led; enum joycon_ctlr_state ctlr_state; spinlock_t lock; @@ -733,8 +734,42 @@ static int joycon_player_led_brightness_set(struct led_classdev *led, return ret; } +static int joycon_home_led_brightness_set(struct led_classdev *led, + enum led_brightness brightness) +{ + struct device *dev = led->dev->parent; + struct hid_device *hdev = to_hid_device(dev); + struct joycon_ctlr *ctlr; + struct joycon_subcmd_request *req; + u8 buffer[sizeof(*req) + 5] = { 0 }; + u8 *data; + int ret; + + ctlr = hid_get_drvdata(hdev); + if (!ctlr) { + hid_err(hdev, "No controller data\n"); + return -ENODEV; + } + + req = (struct joycon_subcmd_request *)buffer; + req->subcmd_id = JC_SUBCMD_SET_HOME_LIGHT; + data = req->data; + data[0] = 0x01; + data[1] = brightness << 4; + data[2] = brightness | (brightness << 4); + data[3] = 0x11; + data[4] = 0x11; + + hid_dbg(hdev, "setting home led brightness\n"); + mutex_lock(&ctlr->output_mutex); + ret = joycon_send_subcmd(ctlr, req, 5); + mutex_unlock(&ctlr->output_mutex); + + return ret; +} + static DEFINE_MUTEX(joycon_input_num_mutex); -static int joycon_player_leds_create(struct joycon_ctlr *ctlr) +static int joycon_leds_create(struct joycon_ctlr *ctlr) { struct hid_device *hdev = ctlr->hdev; struct device *dev = &hdev->dev; @@ -773,7 +808,7 @@ static int joycon_player_leds_create(struct joycon_ctlr *ctlr) ret = devm_led_classdev_register(&hdev->dev, led); if (ret) { hid_err(hdev, "Failed registering %s LED\n", led->name); - break; + return ret; } } @@ -781,6 +816,35 @@ static int joycon_player_leds_create(struct joycon_ctlr *ctlr) input_num = 1; mutex_unlock(&joycon_input_num_mutex); + /* configure the home LED */ + if (ctlr->hdev->product != USB_DEVICE_ID_NINTENDO_JOYCONL) { + name = devm_kasprintf(dev, GFP_KERNEL, "%s:%s:%s", + d_name, + "blue", + LED_FUNCTION_PLAYER5); + if (!name) + return -ENOMEM; + + led = &ctlr->home_led; + led->name = name; + led->brightness = 0; + led->max_brightness = 0xF; + led->brightness_set_blocking = joycon_home_led_brightness_set; + led->flags = LED_CORE_SUSPENDRESUME | LED_HW_PLUGGABLE; + ret = devm_led_classdev_register(&hdev->dev, led); + if (ret) { + hid_err(hdev, "Failed registering home led\n"); + return ret; + } + /* Set the home LED to 0 as default state */ + ret = joycon_home_led_brightness_set(led, 0); + if (ret) { + hid_err(hdev, "Failed to set home LED dflt; ret=%d\n", + ret); + return ret; + } + } + return 0; } @@ -1027,7 +1091,7 @@ static int nintendo_hid_probe(struct hid_device *hdev, mutex_unlock(&ctlr->output_mutex); /* Initialize the leds */ - ret = joycon_player_leds_create(ctlr); + ret = joycon_leds_create(ctlr); if (ret) { hid_err(hdev, "Failed to create leds; ret=%d\n", ret); goto err_close; |