diff options
Diffstat (limited to 'target/linux/ramips/files')
4 files changed, 93 insertions, 1 deletions
diff --git a/target/linux/ramips/files/arch/mips/include/asm/mach-ralink/dev-gpio-buttons.h b/target/linux/ramips/files/arch/mips/include/asm/mach-ralink/dev-gpio-buttons.h new file mode 100644 index 0000000000..c1ae71e8f2 --- /dev/null +++ b/target/linux/ramips/files/arch/mips/include/asm/mach-ralink/dev-gpio-buttons.h @@ -0,0 +1,31 @@ +/* + * Ralink SoC GPIO button support + * + * Copyright (C) 2010 Gabor Juhos <juhosg@openwrt.org> + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License version 2 as published + * by the Free Software Foundation. + */ + +#ifndef __ASM_MACH_RALINK_DEV_GPIO_BUTTONS_H +#define __ASM_MACH_RALINK_DEV_GPIO_BUTTONS_H + +#include <linux/input.h> +#include <linux/gpio_buttons.h> + +#ifdef CONFIG_RALINK_DEV_GPIO_BUTTONS +void __init ramips_register_gpio_buttons(int id, + unsigned poll_interval, + unsigned nbuttons, + struct gpio_button *buttons); +#else +static inline void ramips_register_gpio_buttons(int id, + unsigned poll_interval, + unsigned nbuttons, + struct gpio_button *buttons); +{ +} +#endif + +#endif /* __ASM_MACH_RALINK_DEV_GPIO_BUTTONS_H */ diff --git a/target/linux/ramips/files/arch/mips/ralink/Kconfig b/target/linux/ramips/files/arch/mips/ralink/Kconfig index fac5c7bfd6..c30dbe1c3c 100644 --- a/target/linux/ramips/files/arch/mips/ralink/Kconfig +++ b/target/linux/ramips/files/arch/mips/ralink/Kconfig @@ -48,6 +48,9 @@ config SOC_RT305X select SYS_HAS_EARLY_PRINTK select MIPS_MACHINE +config RALINK_DEV_GPIO_BUTTONS + def_bool n + config RALINK_DEV_GPIO_LEDS def_bool n diff --git a/target/linux/ramips/files/arch/mips/ralink/common/Makefile b/target/linux/ramips/files/arch/mips/ralink/common/Makefile index c2cf48bcb7..adab85f689 100644 --- a/target/linux/ramips/files/arch/mips/ralink/common/Makefile +++ b/target/linux/ramips/files/arch/mips/ralink/common/Makefile @@ -1,7 +1,7 @@ # # Makefile for the Ralink common stuff # -# Copyright (C) 2009 Gabor Juhos <juhosg@openwrt.org> +# Copyright (C) 2009-2010 Gabor Juhos <juhosg@openwrt.org> # # This program is free software; you can redistribute it and/or modify it # under the terms of the GNU General Public License version 2 as published @@ -9,4 +9,5 @@ obj-y := prom.o setup.o intc.o gpio.o +obj-$(CONFIG_RALINK_DEV_GPIO_BUTTONS) += dev-gpio-buttons.o obj-$(CONFIG_RALINK_DEV_GPIO_LEDS) += dev-gpio-leds.o diff --git a/target/linux/ramips/files/arch/mips/ralink/common/dev-gpio-buttons.c b/target/linux/ramips/files/arch/mips/ralink/common/dev-gpio-buttons.c new file mode 100644 index 0000000000..f323001298 --- /dev/null +++ b/target/linux/ramips/files/arch/mips/ralink/common/dev-gpio-buttons.c @@ -0,0 +1,57 @@ +/* + * Ralink SoC GPIO button support + * + * Copyright (C) 2010 Gabor Juhos <juhosg@openwrt.org> + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License version 2 as published + * by the Free Software Foundation. + */ + +#include "linux/init.h" +#include <linux/platform_device.h> + +#include <asm/mach-ralink/dev-gpio-buttons.h> + +void __init ramips_register_gpio_buttons(int id, + unsigned poll_interval, + unsigned nbuttons, + struct gpio_button *buttons) +{ + struct platform_device *pdev; + struct gpio_buttons_platform_data pdata; + struct gpio_button *p; + int err; + + p = kmalloc(nbuttons * sizeof(*p), GFP_KERNEL); + if (!p) + return; + + memcpy(p, buttons, nbuttons * sizeof(*p)); + + pdev = platform_device_alloc("gpio-buttons", id); + if (!pdev) + goto err_free_buttons; + + memset(&pdata, 0, sizeof(pdata)); + pdata.poll_interval = poll_interval; + pdata.nbuttons = nbuttons; + pdata.buttons = p; + + err = platform_device_add_data(pdev, &pdata, sizeof(pdata)); + if (err) + goto err_put_pdev; + + + err = platform_device_add(pdev); + if (err) + goto err_put_pdev; + + return; + +err_put_pdev: + platform_device_put(pdev); + +err_free_buttons: + kfree(p); +} |