[PATCH v2 04/17] input: locomokbd: provide an Alt-SysRQ combination

Dmitry Torokhov
2015-05-12T20:12:15Z

Hi Dmitry,

On Tue, Apr 28, 2015 at 02:55:41AM +0300, Dmitry Eremin-Solenikov wrote:
> It is usefull sometimes to have an Alt-SysRQ combo on the keyboard to be
> able to trigger sysrq functions directly. Add an option providing sysrq
> mapping for Contact-Home keys.

No, if you want to remap the keys please do it from usepspace; locomokbd
supports it (EVIOCSKEYCODE ioctl).

Thanks.

>
> Signed-off-by: Dmitry Eremin-Solenikov <dbaryshkov@gmail.com>
> ---
> drivers/input/keyboard/Kconfig | 7 +++++++
> drivers/input/keyboard/locomokbd.c | 14 +++++++++++---
> 2 files changed, 18 insertions(+), 3 deletions(-)
>
> diff --git a/drivers/input/keyboard/Kconfig b/drivers/input/keyboard/Kconfig
> index 0a3d875..eb8b11b 100644
> --- a/drivers/input/keyboard/Kconfig
> +++ b/drivers/input/keyboard/Kconfig
> @@ -343,6 +343,13 @@ config KEYBOARD_LOCOMO
> To compile this driver as a module, choose M here: the
> module will be called locomokbd.
>
> +config KEYBOARD_LOCOMO_SYSRQ
> + bool "Provide SysRQ key on LoCoMo keyboard"
> + depends on KEYBOARD_LOCOMO
> + help
> + Say Y here to be able to use Contact-Home as Alt-Sysrq combo.
> + Say N if you want to use them as usual keys.
> +
> config KEYBOARD_LPC32XX
> tristate "LPC32XX matrix key scanner support"
> depends on ARCH_LPC32XX && OF
> diff --git a/drivers/input/keyboard/locomokbd.c b/drivers/input/keyboard/locomokbd.c
> index eed0a94..eb8dbe2 100644
> --- a/drivers/input/keyboard/locomokbd.c
> +++ b/drivers/input/keyboard/locomokbd.c
> @@ -40,6 +40,14 @@
> #define KEY_CONTACT KEY_F18
> #define KEY_CENTER KEY_F15
>
> +#ifdef CONFIG_KEYBOARD_LOCOMOKBD_SYSRQ
> +#define LOCOMO_KEY_CONTACT KEY_LEFTALT
> +#define LOCOMO_KEY_HOME KEY_SYSRQ
> +#else
> +#define LOCOMO_KEY_CONTACT KEY_CONTACT
> +#define LOCOMO_KEY_HOME KEY_HOME
> +#endif
> +
> #define KB_ROWS 16
> #define KB_COLS 8
> #define LOCOMOKBD_NUMKEYS (KB_ROWS * KB_COLS)
> @@ -48,7 +56,7 @@
> static const unsigned char
> locomokbd_keycode[LOCOMOKBD_NUMKEYS] = {
> 0, KEY_ESC, KEY_ACTIVITY, 0, 0, 0, 0, 0, 0, 0, /* 0 - 9 */
> - 0, 0, 0, 0, 0, 0, 0, KEY_MENU, 0, KEY_CONTACT, /* 10 - 19 */
> + 0, 0, 0, 0, 0, 0, 0, KEY_MENU, 0, LOCOMO_KEY_CONTACT, /* 10 - 19 */
> 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /* 20 - 29 */
> 0, 0, 0, KEY_CENTER, 0, KEY_MAIL, 0, 0, 0, 0, /* 30 - 39 */
> 0, 0, 0, 0, 0, 0, 0, 0, 0, KEY_RIGHT, /* 40 - 49 */
> @@ -280,9 +288,9 @@ static int locomokbd_probe(struct platform_device *dev)
> sizeof(locomokbd->keycode));
>
> if (machine_is_collie())
> - locomokbd->keycode[18] = KEY_HOME;
> + locomokbd->keycode[18] = LOCOMO_KEY_HOME;
> else
> - locomokbd->keycode[3] = KEY_HOME;
> + locomokbd->keycode[3] = LOCOMO_KEY_HOME;
>
> for (i = 0; i < LOCOMOKBD_NUMKEYS; i++)
> input_set_capability(input_dev, EV_KEY, locomokbd->keycode[i]);
> --
> 2.1.4
>

--
Dmitry