From cae243927f67f81ff7456906bb6018b93e1c28f3 Mon Sep 17 00:00:00 2001 From: Caleb Connolly Date: Sun, 14 Jul 2024 21:49:19 +0200 Subject: dm: button: support remapping phone keys We don't have audio support in U-Boot, but we do have boot menus. Add an option to re-map the volume and power buttons to up/down/enter so that in situations where these are the only available buttons (such as on mobile phones) it's still possible to navigate menus built in U-Boot or an external EFI app like GRUB or systemd-boot. Signed-off-by: Caleb Connolly Reviewed-by: Dragan Simic --- drivers/button/button-uclass.c | 22 +++++++++++++++++++++- 1 file changed, 21 insertions(+), 1 deletion(-) (limited to 'drivers/button/button-uclass.c') diff --git a/drivers/button/button-uclass.c b/drivers/button/button-uclass.c index cda243389df..729983d5870 100644 --- a/drivers/button/button-uclass.c +++ b/drivers/button/button-uclass.c @@ -10,6 +10,7 @@ #include #include #include +#include int button_get_by_label(const char *label, struct udevice **devp) { @@ -37,14 +38,33 @@ enum button_state_t button_get_state(struct udevice *dev) return ops->get_state(dev); } +static int button_remap_phone_keys(int code) +{ + switch (code) { + case KEY_VOLUMEUP: + return KEY_UP; + case KEY_VOLUMEDOWN: + return KEY_DOWN; + case KEY_POWER: + return KEY_ENTER; + default: + return code; + } +} + int button_get_code(struct udevice *dev) { struct button_ops *ops = button_get_ops(dev); + int code; if (!ops->get_code) return -ENOSYS; - return ops->get_code(dev); + code = ops->get_code(dev); + if (CONFIG_IS_ENABLED(BUTTON_REMAP_PHONE_KEYS)) + return button_remap_phone_keys(code); + else + return code; } UCLASS_DRIVER(button) = { -- cgit v1.2.3