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Input: cobalt_btns - add support for loadable keymaps

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Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
This commit is contained in:
Dmitry Torokhov 2007-11-04 00:41:36 -04:00
parent 72341eea6f
commit b037b08e59
1 changed files with 37 additions and 38 deletions
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75
drivers/input/misc/cobalt_btns.c
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@ -27,55 +27,48 @@
#define BUTTONS_COUNT_THRESHOLD 3
#define BUTTONS_STATUS_MASK 0xfe000000
static const unsigned short cobalt_map[] = {
KEY_RESERVED,
KEY_RESTART,
KEY_LEFT,
KEY_UP,
KEY_DOWN,
KEY_RIGHT,
KEY_ENTER,
KEY_SELECT
};
struct buttons_dev {
struct input_polled_dev *poll_dev;
unsigned short keymap[ARRAY_SIZE(cobalt_map)];
int count[ARRAY_SIZE(cobalt_map)];
void __iomem *reg;
};
struct buttons_map {
uint32_t mask;
int keycode;
int count;
};
static struct buttons_map buttons_map[] = {
{ 0x02000000, KEY_RESTART, },
{ 0x04000000, KEY_LEFT, },
{ 0x08000000, KEY_UP, },
{ 0x10000000, KEY_DOWN, },
{ 0x20000000, KEY_RIGHT, },
{ 0x40000000, KEY_ENTER, },
{ 0x80000000, KEY_SELECT, },
};
static void handle_buttons(struct input_polled_dev *dev)
{
struct buttons_map *button = buttons_map;
struct buttons_dev *bdev = dev->private;
struct input_dev *input = dev->input;
uint32_t status;
int i;
status = readl(bdev->reg);
status = ~status & BUTTONS_STATUS_MASK;
status = ~readl(bdev->reg) >> 24;
for (i = 0; i < ARRAY_SIZE(buttons_map); i++) {
if (status & button->mask) {
button->count++;
} else {
if (button->count >= BUTTONS_COUNT_THRESHOLD) {
input_report_key(input, button->keycode, 0);
for (i = 0; i < ARRAY_SIZE(bdev->keymap); i++) {
if (status & (1UL << i)) {
if (++bdev->count[i] == BUTTONS_COUNT_THRESHOLD) {
input_event(input, EV_MSC, MSC_SCAN, i);
input_report_key(input, bdev->keymap[i], 1);
input_sync(input);
}
button->count = 0;
} else {
if (bdev->count[i] >= BUTTONS_COUNT_THRESHOLD) {
input_event(input, EV_MSC, MSC_SCAN, i);
input_report_key(input, bdev->keymap[i], 0);
input_sync(input);
}
bdev->count[i] = 0;
}
if (button->count == BUTTONS_COUNT_THRESHOLD) {
input_report_key(input, button->keycode, 1);
input_sync(input);
}
button++;
}
}
@ -94,6 +87,8 @@ static int __devinit cobalt_buttons_probe(struct platform_device *pdev)
goto err_free_mem;
}
memcpy(bdev->keymap, cobalt_map, sizeof(bdev->keymap));
poll_dev->private = bdev;
poll_dev->poll = handle_buttons;
poll_dev->poll_interval = BUTTONS_POLL_INTERVAL;
@ -104,11 +99,15 @@ static int __devinit cobalt_buttons_probe(struct platform_device *pdev)
input->id.bustype = BUS_HOST;
input->cdev.dev = &pdev->dev;
input->evbit[0] = BIT_MASK(EV_KEY);
for (i = 0; i < ARRAY_SIZE(buttons_map); i++) {
set_bit(buttons_map[i].keycode, input->keybit);
buttons_map[i].count = 0;
}
input->keycode = pdev->keymap;
input->keycodemax = ARRAY_SIZE(pdev->keymap);
input->keycodesize = sizeof(unsigned short);
input_set_capability(input, EV_MSC, MSC_SCAN);
__set_bit(EV_KEY, input->evbit);
for (i = 0; i < ARRAY_SIZE(buttons_map); i++)
__set_bit(input->keycode[i], input->keybit);
__clear_bit(KEY_RESERVED, input->keybit);
res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
if (!res) {