diff options
| author | Rahul Rameshbabu <rrameshbabu@nvidia.com> | 2023-05-29 15:20:50 -0700 |
|---|---|---|
| committer | Jiri Kosina <jkosina@suse.cz> | 2023-06-09 17:52:42 +0200 |
| commit | 13d02c69e4788f700377677a6cc4247a2869b17d (patch) | |
| tree | d2110a39d4239e2758988683168064ddcbaef9da /drivers/hid | |
| parent | 09308562d4afb1abc66366608fa1cb9de783272f (diff) | |
HID: nvidia-shield: Add mappings for consumer HID USAGE buttons
Map Android Home, Back, Search, VolumeUp, VolumeDown, and PlayPause buttons
to the appropriate input event codes.
Signed-off-by: Rahul Rameshbabu <rrameshbabu@nvidia.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
Diffstat (limited to 'drivers/hid')
| -rw-r--r-- | drivers/hid/hid-nvidia-shield.c | 55 |
1 files changed, 50 insertions, 5 deletions
diff --git a/drivers/hid/hid-nvidia-shield.c b/drivers/hid/hid-nvidia-shield.c index 4182ad3a7b93..d7521c9c8c1e 100644 --- a/drivers/hid/hid-nvidia-shield.c +++ b/drivers/hid/hid-nvidia-shield.c @@ -15,6 +15,16 @@ #include "hid-ids.h" #define NOT_INIT_STR "NOT INITIALIZED" +#define android_map_key(c) hid_map_usage(hi, usage, bit, max, EV_KEY, (c)) + +enum { + HID_USAGE_ANDROID_PLAYPAUSE_BTN = 0xcd, /* Double-tap volume slider */ + HID_USAGE_ANDROID_VOLUMEUP_BTN = 0xe9, + HID_USAGE_ANDROID_VOLUMEDOWN_BTN = 0xea, + HID_USAGE_ANDROID_SEARCH_BTN = 0x221, /* NVIDIA btn on Thunderstrike */ + HID_USAGE_ANDROID_HOME_BTN = 0x223, + HID_USAGE_ANDROID_BACK_BTN = 0x224, +}; enum { SHIELD_FW_VERSION_INITIALIZED = 0, @@ -416,6 +426,40 @@ static struct shield_device *thunderstrike_create(struct hid_device *hdev) return shield_dev; } +static int android_input_mapping(struct hid_device *hdev, struct hid_input *hi, + struct hid_field *field, + struct hid_usage *usage, unsigned long **bit, + int *max) +{ + if ((usage->hid & HID_USAGE_PAGE) != HID_UP_CONSUMER) + return 0; + + switch (usage->hid & HID_USAGE) { + case HID_USAGE_ANDROID_PLAYPAUSE_BTN: + android_map_key(KEY_PLAYPAUSE); + break; + case HID_USAGE_ANDROID_VOLUMEUP_BTN: + android_map_key(KEY_VOLUMEUP); + break; + case HID_USAGE_ANDROID_VOLUMEDOWN_BTN: + android_map_key(KEY_VOLUMEDOWN); + break; + case HID_USAGE_ANDROID_SEARCH_BTN: + android_map_key(BTN_Z); + break; + case HID_USAGE_ANDROID_HOME_BTN: + android_map_key(BTN_MODE); + break; + case HID_USAGE_ANDROID_BACK_BTN: + android_map_key(BTN_SELECT); + break; + default: + return 0; + } + + return 1; +} + static ssize_t firmware_version_show(struct device *dev, struct device_attribute *attr, char *buf) { @@ -571,11 +615,12 @@ static const struct hid_device_id shield_devices[] = { MODULE_DEVICE_TABLE(hid, shield_devices); static struct hid_driver shield_driver = { - .name = "shield", - .id_table = shield_devices, - .probe = shield_probe, - .remove = shield_remove, - .raw_event = shield_raw_event, + .name = "shield", + .id_table = shield_devices, + .input_mapping = android_input_mapping, + .probe = shield_probe, + .remove = shield_remove, + .raw_event = shield_raw_event, .driver = { .dev_groups = shield_device_groups, }, |