On Wed, Sep 08, 2010 at 12:42:05AM -0700, Dmitry Torokhov wrote:
> Switch the code to use new style of getkeycode and setkeycode
> methods to allow retrieving and setting keycodes not only by
> their scancodes but also by index.
>
> Signed-off-by: Dmitry Torokhov <d...@mail.ru>
> ---
>
> drivers/input/misc/ati_remote2.c | 93
> +++++++++++++++++++++++++++-----------
> 1 files changed, 65 insertions(+), 28 deletions(-)
>
> diff --git a/drivers/input/misc/ati_remote2.c
> b/drivers/input/misc/ati_remote2.c
> index 2325765..b2e0d82 100644
> --- a/drivers/input/misc/ati_remote2.c
> +++ b/drivers/input/misc/ati_remote2.c
> @@ -483,51 +483,88 @@ static void ati_remote2_complete_key(struct urb *urb)
> }
>
> static int ati_remote2_getkeycode(struct input_dev *idev,
> - unsigned int scancode, unsigned int *keycode)
> + struct input_keymap_entry *ke)
> {
> struct ati_remote2 *ar2 = input_get_drvdata(idev);
> unsigned int mode;
> - int index;
> + int offset;
> + unsigned int index;
> + unsigned int scancode;
> +
> + if (ke->flags & INPUT_KEYMAP_BY_INDEX) {
> + index = ke->index;
> + if (index >= (ATI_REMOTE2_MODES - 1) *
^^^^
That -1 looks wrong. Same in setkeycode().
> + ARRAY_SIZE(ati_remote2_key_table))
> + return -EINVAL;
> +
> + mode = ke->index / ARRAY_SIZE(ati_remote2_key_table);
> + offset = ke->index % ARRAY_SIZE(ati_remote2_key_table);
> + scancode = (mode << 8) + ati_remote2_key_table[offset].hw_code;
> + } else {
> + if (input_scancode_to_scalar(ke, &scancode))
> + return -EINVAL;
> +
> + mode = scancode >> 8;
> + if (mode > ATI_REMOTE2_PC)
> + return -EINVAL;
> +
> + offset = ati_remote2_lookup(scancode & 0xff);
> + if (offset < 0)
> + return -EINVAL;
> +
> + index = mode * ARRAY_SIZE(ati_remote2_key_table) + offset;
> + }
>
> - mode = scancode >> 8;
> - if (mode > ATI_REMOTE2_PC || !((1 << mode) & ar2->mode_mask))
> - return -EINVAL;
You're removing the mode_mask check here, but I think that's fine. I
don't see why the keymap shouldn't be allowed to be queried/modified for
the unused modes.
> + ke->keycode = ar2->keycode[mode][offset];
> + ke->len = sizeof(scancode);
> + memcpy(&ke->scancode, &scancode, sizeof(scancode));
The scancodes fit into two bytes each. Does it matter that you're
using 4 bytes here?
> + ke->index = index;
>
> - index = ati_remote2_lookup(scancode & 0xFF);
> - if (index < 0)
> - return -EINVAL;
> -
> - *keycode = ar2->keycode[mode][index];
> return 0;
> }
>
> static int ati_remote2_setkeycode(struct input_dev *idev,
> - unsigned int scancode, unsigned int keycode)
> + const struct input_keymap_entry *ke,
> + unsigned int *old_keycode)
> {
> struct ati_remote2 *ar2 = input_get_drvdata(idev);
> - unsigned int mode, old_keycode;
> - int index;
> -
> - mode = scancode >> 8;
> - if (mode > ATI_REMOTE2_PC || !((1 << mode) & ar2->mode_mask))
> - return -EINVAL;
> -
> - index = ati_remote2_lookup(scancode & 0xFF);
> - if (index < 0)
> - return -EINVAL;
> + unsigned int mode;
> + int offset;
> + unsigned int index;
> + unsigned int scancode;
> +
> + if (ke->flags & INPUT_KEYMAP_BY_INDEX) {
> + if (ke->index >= (ATI_REMOTE2_MODES - 1) *
> + ARRAY_SIZE(ati_remote2_key_table))
> + return -EINVAL;
> +
> + mode = ke->index / ARRAY_SIZE(ati_remote2_key_table);
> + offset = ke->index % ARRAY_SIZE(ati_remote2_key_table);
> + } else {
> + if (input_scancode_to_scalar(ke, &scancode))
> + return -EINVAL;
> +
> + mode = scancode >> 8;
> + if (mode > ATI_REMOTE2_PC)
> + return -EINVAL;
> +
> + offset = ati_remote2_lookup(scancode & 0xff);
> + if (offset < 0)
> + return -EINVAL;
> + }
>
> - old_keycode = ar2->keycode[mode][index];
> - ar2->keycode[mode][index] = keycode;
> - __set_bit(keycode, idev->keybit);
> + *old_keycode = ar2->keycode[mode][offset];
> + ar2->keycode[mode][offset] = ke->keycode;
> + __set_bit(ke->keycode, idev->keybit);
>
> for (mode = 0; mode < ATI_REMOTE2_MODES; mode++) {
> for (index = 0; index < ARRAY_SIZE(ati_remote2_key_table);
> index++) {
> - if (ar2->keycode[mode][index] == old_keycode)
> + if (ar2->keycode[mode][index] == *old_keycode)
> return 0;
> }
> }
>
> - __clear_bit(old_keycode, idev->keybit);
> + __clear_bit(*old_keycode, idev->keybit);
>
> return 0;
> }
> @@ -575,8 +612,8 @@ static int ati_remote2_input_init(struct ati_remote2 *ar2)
> idev->open = ati_remote2_open;
> idev->close = ati_remote2_close;
>
> - idev->getkeycode = ati_remote2_getkeycode;
> - idev->setkeycode = ati_remote2_setkeycode;
> + idev->getkeycode_new = ati_remote2_getkeycode;
> + idev->setkeycode_new = ati_remote2_setkeycode;
>
> idev->name = ar2->name;
> idev->phys = ar2->phys;
>
--
Ville Syrjälä
syrj...@sci.fi
http://www.sci.fi/~syrjala/
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