drivers/hid/hid-samsung.c

Source file repositories/reference/linux-study-clean/drivers/hid/hid-samsung.c

File Facts

System
Linux kernel
Corpus path
drivers/hid/hid-samsung.c
Extension
.c
Size
15135 bytes
Lines
566
Domain
Driver Families
Bucket
drivers/hid
Inferred role
Driver Families: implementation source
Status
source implementation candidate

Why This File Exists

Repeatable hardware-adapter layer. Deep compatibility for every driver is out of scope; this atlas records patterns, probe lifecycles, bus glue, IRQ/DMA usage, and links back to core abstractions.

Dependency Surface

Detected Declarations

Annotated Snippet

switch (usage->hid & HID_USAGE) {
		case 0x32:
			samsung_kbd_mouse_map_key_clear(KEY_BACKSLASH);
			break;
		case 0x64:
			samsung_kbd_mouse_map_key_clear(KEY_102ND);
			break;
		/* Only for BR keyboard */
		case 0x87:
			samsung_kbd_mouse_map_key_clear(KEY_RO);
			break;
		default:
			return 0;
		}
	}

	if (HID_UP_CONSUMER == (usage->hid & HID_USAGE_PAGE)) {
		switch (usage->hid & HID_USAGE) {
		/* report 2 */
		/* MENU */
		case 0x040:
			samsung_kbd_mouse_map_key_clear(KEY_MENU);
			break;
		case 0x18a:
			samsung_kbd_mouse_map_key_clear(KEY_MAIL);
			break;
		case 0x196:
			samsung_kbd_mouse_map_key_clear(KEY_WWW);
			break;
		case 0x19e:
			samsung_kbd_mouse_map_key_clear(KEY_SCREENLOCK);
			break;
		case 0x221:
			samsung_kbd_mouse_map_key_clear(KEY_SEARCH);
			break;
		case 0x223:
			samsung_kbd_mouse_map_key_clear(KEY_HOMEPAGE);
			break;
		/* Smtart Voice Key */
		case 0x300:
			samsung_kbd_mouse_map_key_clear(BTN_TRIGGER_HAPPY13);
			break;
		/* RECENTAPPS */
		case 0x301:
			samsung_kbd_mouse_map_key_clear(BTN_TRIGGER_HAPPY1);
			break;
		/* APPLICATION */
		case 0x302:
			samsung_kbd_mouse_map_key_clear(BTN_TRIGGER_HAPPY2);
			break;
		/* Voice search */
		case 0x305:
			samsung_kbd_mouse_map_key_clear(BTN_TRIGGER_HAPPY4);
			break;
		/* QPANEL on/off */
		case 0x306:
			samsung_kbd_mouse_map_key_clear(BTN_TRIGGER_HAPPY5);
			break;
		/* SIP on/off */
		case 0x307:
			samsung_kbd_mouse_map_key_clear(BTN_TRIGGER_HAPPY3);
			break;
		/* LANG */
		case 0x308:
			samsung_kbd_mouse_map_key_clear(KEY_LANGUAGE);
			break;
		case 0x30a:
			samsung_kbd_mouse_map_key_clear(KEY_BRIGHTNESSDOWN);
			break;
		case 0x30b:
			samsung_kbd_mouse_map_key_clear(KEY_BRIGHTNESSUP);
			break;
		default:
			return 0;
		}
	}

	return 1;
}

static int samsung_gamepad_input_mapping(struct hid_device *hdev,
	struct hid_input *hi, struct hid_field *field, struct hid_usage *usage,
	unsigned long **bit, int *max)
{
	if (!(HID_UP_BUTTON == (usage->hid & HID_USAGE_PAGE) ||
			HID_UP_CONSUMER == (usage->hid & HID_USAGE_PAGE)))
		return 0;

	dbg_hid("samsung wireless gamepad input mapping event [0x%x], %ld, %ld, [0x%x]\n",
		usage->hid & HID_USAGE, hi->input->evbit[0], hi->input->absbit[0], usage->hid & HID_USAGE_PAGE);

Annotation

Implementation Notes