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Input: tegra-kbc - add function keymap 

Add Fn keymap support to allow for internal processing of Fn keys.

Signed-off-by: Rakesh Iyer <riyer@nvidia.com>
Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
This commit is contained in:
Rakesh Iyer 2011-02-18 08:38:02 -08:00 committed by Dmitry Torokhov
parent cfaea56741
commit 4e8b65f606
2 changed files with 60 additions and 3 deletions
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1
arch/arm/mach-tegra/include/mach/kbc.h
View File

@ -57,5 +57,6 @@ struct tegra_kbc_platform_data {
const struct matrix_keymap_data *keymap_data;
bool wakeup;
bool use_fn_map;
};
#endif

62
drivers/input/keyboard/tegra-kbc.c
View File

@ -71,8 +71,9 @@ struct tegra_kbc {
spinlock_t lock;
unsigned int repoll_dly;
unsigned long cp_dly_jiffies;
bool use_fn_map;
const struct tegra_kbc_platform_data *pdata;
unsigned short keycode[KBC_MAX_KEY];
unsigned short keycode[KBC_MAX_KEY * 2];
unsigned short current_keys[KBC_MAX_KPENT];
unsigned int num_pressed_keys;
struct timer_list timer;
@ -178,6 +179,40 @@ static const u32 tegra_kbc_default_keymap[] = {
KEY(15, 5, KEY_F2),
KEY(15, 6, KEY_CAPSLOCK),
KEY(15, 7, KEY_F6),
/* Software Handled Function Keys */
KEY(20, 0, KEY_KP7),
KEY(21, 0, KEY_KP9),
KEY(21, 1, KEY_KP8),
KEY(21, 2, KEY_KP4),
KEY(21, 4, KEY_KP1),
KEY(22, 1, KEY_KPSLASH),
KEY(22, 2, KEY_KP6),
KEY(22, 3, KEY_KP5),
KEY(22, 4, KEY_KP3),
KEY(22, 5, KEY_KP2),
KEY(22, 7, KEY_KP0),
KEY(27, 1, KEY_KPASTERISK),
KEY(27, 3, KEY_KPMINUS),
KEY(27, 4, KEY_KPPLUS),
KEY(27, 5, KEY_KPDOT),
KEY(28, 5, KEY_VOLUMEUP),
KEY(29, 3, KEY_HOME),
KEY(29, 4, KEY_END),
KEY(29, 5, KEY_BRIGHTNESSDOWN),
KEY(29, 6, KEY_VOLUMEDOWN),
KEY(29, 7, KEY_BRIGHTNESSUP),
KEY(30, 0, KEY_NUMLOCK),
KEY(30, 1, KEY_SCROLLLOCK),
KEY(30, 2, KEY_MUTE),
KEY(31, 4, KEY_HELP),
};
static const struct matrix_keymap_data tegra_kbc_default_keymap_data = {
@ -224,6 +259,7 @@ static void tegra_kbc_report_keys(struct tegra_kbc *kbc)
unsigned int i;
unsigned int num_down = 0;
unsigned long flags;
bool fn_keypress = false;
spin_lock_irqsave(&kbc->lock, flags);
for (i = 0; i < KBC_MAX_KPENT; i++) {
@ -237,11 +273,28 @@ static void tegra_kbc_report_keys(struct tegra_kbc *kbc)
MATRIX_SCAN_CODE(row, col, KBC_ROW_SHIFT);
scancodes[num_down] = scancode;
keycodes[num_down++] = kbc->keycode[scancode];
keycodes[num_down] = kbc->keycode[scancode];
/* If driver uses Fn map, do not report the Fn key. */
if ((keycodes[num_down] == KEY_FN) && kbc->use_fn_map)
fn_keypress = true;
else
num_down++;
}
val >>= 8;
}
/*
* If the platform uses Fn keymaps, translate keys on a Fn keypress.
* Function keycodes are KBC_MAX_KEY apart from the plain keycodes.
*/
if (fn_keypress) {
for (i = 0; i < num_down; i++) {
scancodes[i] += KBC_MAX_KEY;
keycodes[i] = kbc->keycode[scancodes[i]];
}
}
spin_unlock_irqrestore(&kbc->lock, flags);
tegra_kbc_report_released_keys(kbc->idev,
@ -594,8 +647,11 @@ static int __devinit tegra_kbc_probe(struct platform_device *pdev)
input_dev->keycode = kbc->keycode;
input_dev->keycodesize = sizeof(kbc->keycode[0]);
input_dev->keycodemax = ARRAY_SIZE(kbc->keycode);
input_dev->keycodemax = KBC_MAX_KEY;
if (pdata->use_fn_map)
input_dev->keycodemax *= 2;
kbc->use_fn_map = pdata->use_fn_map;
keymap_data = pdata->keymap_data ?: &tegra_kbc_default_keymap_data;
matrix_keypad_build_keymap(keymap_data, KBC_ROW_SHIFT,
input_dev->keycode, input_dev->keybit);