mirror of https://github.com/hak5/openwrt.git
Gabor Juhos
parent
9d6946765a
commit
5798590c7c
|
|
@ -497,6 +497,40 @@ endef
|
|||
$(eval $(call KernelPackage,input-evdev))
|
||||
|
||||
|
||||
define KernelPackage/input-polldev
|
||||
SUBMENU:=$(OTHER_MENU)
|
||||
TITLE:=Polled Input device support
|
||||
DEPENDS:=+kmod-input-core @LINUX_2_6
|
||||
KCONFIG:=CONFIG_INPUT_POLLDEV
|
||||
FILES:=$(LINUX_DIR)/drivers/input/input-polldev.$(LINUX_KMOD_SUFFIX)
|
||||
AUTOLOAD:=$(call AutoLoad,61,input-polldev)
|
||||
endef
|
||||
|
||||
define KernelPackage/input-polldev/description
|
||||
Kernel module for support of polled input devices
|
||||
endef
|
||||
|
||||
$(eval $(call KernelPackage,input-polldev))
|
||||
|
||||
|
||||
define KernelPackage/input-gpio-buttons
|
||||
SUBMENU:=$(OTHER_MENU)
|
||||
TITLE:=Polled GPIO buttons input device
|
||||
DEPENDS:=+kmod-input-polldev @LINUX_2_6
|
||||
KCONFIG:= \
|
||||
CONFIG_INPUT_GPIO_BUTTONS \
|
||||
CONFIG_INPUT_MISC=y
|
||||
FILES:=$(LINUX_DIR)/drivers/input/misc/gpio_buttons.$(LINUX_KMOD_SUFFIX)
|
||||
AUTOLOAD:=$(call AutoLoad,62,gpio_buttons)
|
||||
endef
|
||||
|
||||
define KernelPackage/input-gpio-buttons/description
|
||||
Kernel module for support polled GPIO buttons input device
|
||||
endef
|
||||
|
||||
$(eval $(call KernelPackage,input-gpio-buttons))
|
||||
|
||||
|
||||
define KernelPackage/mmc-spi
|
||||
SUBMENU:=$(OTHER_MENU)
|
||||
TITLE:=MMC/SD over SPI Support
|
||||
|
|
|
|||
|
|
@ -0,0 +1,206 @@
|
|||
/*
|
||||
* Driver for buttons on GPIO lines not capable of generating interrupts
|
||||
*
|
||||
* Copyright (C) 2007,2008 Gabor Juhos <juhosg at openwrt.org>
|
||||
*
|
||||
* This file was based on: /drivers/input/misc/cobalt_btns.c
|
||||
* Copyright (C) 2007 Yoichi Yuasa <yoichi_yuasa@tripeaks.co.jp>
|
||||
*
|
||||
* also was based on: /drivers/input/keyboard/gpio_keys.c
|
||||
* Copyright 2005 Phil Blundell
|
||||
*
|
||||
* 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/input-polldev.h>
|
||||
#include <linux/ioport.h>
|
||||
#include <linux/module.h>
|
||||
#include <linux/platform_device.h>
|
||||
|
||||
#include <linux/gpio_buttons.h>
|
||||
|
||||
#include <asm/gpio.h>
|
||||
|
||||
#define DRV_NAME "gpio-buttons"
|
||||
#define DRV_VERSION "0.1.0"
|
||||
#define PFX DRV_NAME ": "
|
||||
|
||||
struct gpio_buttons_dev {
|
||||
struct input_polled_dev *poll_dev;
|
||||
struct gpio_buttons_platform_data *pdata;
|
||||
};
|
||||
|
||||
static void gpio_buttons_poll(struct input_polled_dev *dev)
|
||||
{
|
||||
struct gpio_buttons_dev *bdev = dev->private;
|
||||
struct gpio_buttons_platform_data *pdata = bdev->pdata;
|
||||
struct input_dev *input = dev->input;
|
||||
int i;
|
||||
|
||||
for (i = 0; i < bdev->pdata->nbuttons; i++) {
|
||||
struct gpio_button *button = &pdata->buttons[i];
|
||||
unsigned int type = button->type ?: EV_KEY;
|
||||
int state;
|
||||
|
||||
state = gpio_get_value(button->gpio) ? 1 : 0;
|
||||
state ^= button->active_low;
|
||||
|
||||
if (state) {
|
||||
button->count++;
|
||||
} else {
|
||||
if (button->count >= button->threshold) {
|
||||
input_event(input, type, button->code, 1);
|
||||
input_sync(input);
|
||||
}
|
||||
button->count = 0;
|
||||
}
|
||||
|
||||
if (button->count == button->threshold) {
|
||||
input_event(input, type, button->code, 0);
|
||||
input_sync(input);
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
static int __devinit gpio_buttons_probe(struct platform_device *pdev)
|
||||
{
|
||||
struct gpio_buttons_platform_data *pdata = pdev->dev.platform_data;
|
||||
struct gpio_buttons_dev *bdev;
|
||||
struct input_polled_dev *poll_dev;
|
||||
struct input_dev *input;
|
||||
int error, i;
|
||||
|
||||
|
||||
if (!pdata)
|
||||
return -ENXIO;
|
||||
|
||||
bdev = kzalloc(sizeof(*bdev), GFP_KERNEL);
|
||||
if (!bdev) {
|
||||
pr_err(DRV_NAME "no memory for device\n");
|
||||
return -ENOMEM;
|
||||
}
|
||||
|
||||
poll_dev = input_allocate_polled_device();
|
||||
if (!poll_dev) {
|
||||
pr_err(DRV_NAME "no memory for polled device\n");
|
||||
error = -ENOMEM;
|
||||
goto err_free_bdev;
|
||||
}
|
||||
|
||||
poll_dev->private = bdev;
|
||||
poll_dev->poll = gpio_buttons_poll;
|
||||
poll_dev->poll_interval = pdata->poll_interval;
|
||||
|
||||
input = poll_dev->input;
|
||||
|
||||
input->evbit[0] = BIT_MASK(EV_KEY);
|
||||
input->name = pdev->name;
|
||||
input->phys = "gpio-buttons/input0";
|
||||
input->dev.parent = &pdev->dev;
|
||||
|
||||
input->id.bustype = BUS_HOST;
|
||||
input->id.vendor = 0x0001;
|
||||
input->id.product = 0x0001;
|
||||
input->id.version = 0x0100;
|
||||
|
||||
for (i = 0; i < pdata->nbuttons; i++) {
|
||||
struct gpio_button *button = &pdata->buttons[i];
|
||||
unsigned int gpio = button->gpio;
|
||||
unsigned int type = button->type ?: EV_KEY;
|
||||
|
||||
error = gpio_request(gpio, button->desc ?
|
||||
button->desc : DRV_NAME);
|
||||
if (error) {
|
||||
pr_err(PFX "unable to claim gpio %u, error %d\n",
|
||||
gpio, error);
|
||||
goto err_free_gpio;
|
||||
}
|
||||
|
||||
error = gpio_direction_input(gpio);
|
||||
if (error) {
|
||||
pr_err(PFX "unable to set direction on gpio %u, "
|
||||
"error %d\n", gpio, error);
|
||||
goto err_free_gpio;
|
||||
}
|
||||
|
||||
input_set_capability(input, type, button->code);
|
||||
button->count = 0;
|
||||
}
|
||||
|
||||
bdev->poll_dev = poll_dev;
|
||||
bdev->pdata = pdata;
|
||||
platform_set_drvdata(pdev, bdev);
|
||||
|
||||
error = input_register_polled_device(poll_dev);
|
||||
if (error) {
|
||||
pr_err(PFX "unable to register polled device, error %d\n",
|
||||
error);
|
||||
goto err_free_gpio;
|
||||
}
|
||||
|
||||
return 0;
|
||||
|
||||
err_free_gpio:
|
||||
for (i = i - 1; i >= 0; i--)
|
||||
gpio_free(pdata->buttons[i].gpio);
|
||||
|
||||
input_free_polled_device(poll_dev);
|
||||
|
||||
err_free_bdev:
|
||||
kfree(bdev);
|
||||
err:
|
||||
platform_set_drvdata(pdev, NULL);
|
||||
return error;
|
||||
}
|
||||
|
||||
static int __devexit gpio_buttons_remove(struct platform_device *pdev)
|
||||
{
|
||||
struct gpio_buttons_dev *bdev = platform_get_drvdata(pdev);
|
||||
struct gpio_buttons_platform_data *pdata = bdev->pdata;
|
||||
int i;
|
||||
|
||||
input_unregister_polled_device(bdev->poll_dev);
|
||||
|
||||
for (i = 0; i < pdata->nbuttons; i++)
|
||||
gpio_free(pdata->buttons[i].gpio);
|
||||
|
||||
input_free_polled_device(bdev->poll_dev);
|
||||
|
||||
kfree(bdev);
|
||||
platform_set_drvdata(pdev, NULL);
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
static struct platform_driver gpio_buttons_driver = {
|
||||
.probe = gpio_buttons_probe,
|
||||
.remove = __devexit_p(gpio_buttons_remove),
|
||||
.driver = {
|
||||
.name = DRV_NAME,
|
||||
.owner = THIS_MODULE,
|
||||
},
|
||||
};
|
||||
|
||||
static int __init gpio_buttons_init(void)
|
||||
{
|
||||
pr_info(DRV_NAME " driver version " DRV_VERSION "\n");
|
||||
return platform_driver_register(&gpio_buttons_driver);
|
||||
}
|
||||
|
||||
static void __exit gpio_buttons_exit(void)
|
||||
{
|
||||
platform_driver_unregister(&gpio_buttons_driver);
|
||||
}
|
||||
|
||||
module_init(gpio_buttons_init);
|
||||
module_exit(gpio_buttons_exit);
|
||||
|
||||
MODULE_LICENSE("GPL");
|
||||
MODULE_AUTHOR("Gabor Juhos <juhosg at openwrt.org>");
|
||||
MODULE_VERSION(DRV_VERSION);
|
||||
MODULE_DESCRIPTION("Polled buttons driver for CPU GPIOs");
|
||||
|
||||
|
|
@ -0,0 +1,35 @@
|
|||
/*
|
||||
* Definitions for the GPIO buttons interface driver
|
||||
*
|
||||
* Copyright (C) 2007,2008 Gabor Juhos <juhosg at openwrt.org>
|
||||
*
|
||||
* This file was based on: /include/linux/gpio_keys.h
|
||||
* The original gpio_keys.h seems not to have a license.
|
||||
*
|
||||
* 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 _GPIO_BUTTONS_H_
|
||||
#define _GPIO_BUTTONS_H_
|
||||
|
||||
struct gpio_button {
|
||||
int gpio; /* GPIO line number */
|
||||
int active_low;
|
||||
char *desc; /* button description */
|
||||
int type; /* input event type (EV_KEY, EV_SW) */
|
||||
int code; /* input event code (KEY_*, SW_*) */
|
||||
int count;
|
||||
int threshold; /* count threshold */
|
||||
};
|
||||
|
||||
struct gpio_buttons_platform_data {
|
||||
struct gpio_button *buttons;
|
||||
int nbuttons; /* number of buttons */
|
||||
int poll_interval; /* polling interval */
|
||||
};
|
||||
|
||||
#endif /* _GPIO_BUTTONS_H_ */
|
||||
|
||||
|
|
@ -0,0 +1,30 @@
|
|||
--- linux-2.6.22.orig/drivers/input/misc/Kconfig 2007-08-21 06:33:06.000000000 +0200
|
||||
+++ linux-2.6.22/drivers/input/misc/Kconfig 2007-10-08 10:57:23.000000000 +0200
|
||||
@@ -178,4 +178,20 @@
|
||||
Say Y here if you want to support the built-in real time clock
|
||||
of the HP SDC controller.
|
||||
|
||||
+config INPUT_GPIO_BUTTONS
|
||||
+ tristate "Polled GPIO buttons interface"
|
||||
+ depends on GENERIC_GPIO
|
||||
+ select INPUT_POLLDEV
|
||||
+ help
|
||||
+ This driver implements support for buttons connected
|
||||
+ to GPIO pins of various CPUs (and some other chips).
|
||||
+
|
||||
+ Say Y here if your device has buttons connected
|
||||
+ directly to such GPIO pins. Your board-specific
|
||||
+ setup logic must also provide a platform device,
|
||||
+ with configuration data saying which GPIOs are used.
|
||||
+
|
||||
+ To compile this driver as a module, choose M here: the
|
||||
+ module will be called gpio-buttons.
|
||||
+
|
||||
endif
|
||||
--- linux-2.6.22.4.orig/drivers/input/misc/Makefile 2007-08-21 06:33:06.000000000 +0200
|
||||
+++ linux-2.6.22.4/drivers/input/misc/Makefile 2007-10-08 10:50:12.000000000 +0200
|
||||
@@ -18,3 +18,4 @@
|
||||
obj-$(CONFIG_INPUT_YEALINK) += yealink.o
|
||||
obj-$(CONFIG_HP_SDC_RTC) += hp_sdc_rtc.o
|
||||
obj-$(CONFIG_INPUT_UINPUT) += uinput.o
|
||||
+obj-$(CONFIG_INPUT_GPIO_BUTTONS) += gpio_buttons.o
|
||||
|
|
@ -0,0 +1,30 @@
|
|||
--- linux-2.6.23.orig/drivers/input/misc/Kconfig 2007-08-21 06:33:06.000000000 +0200
|
||||
+++ linux-2.6.23/drivers/input/misc/Kconfig 2007-10-08 10:57:23.000000000 +0200
|
||||
@@ -178,4 +178,20 @@
|
||||
Say Y here if you want to support the built-in real time clock
|
||||
of the HP SDC controller.
|
||||
|
||||
+config INPUT_GPIO_BUTTONS
|
||||
+ tristate "Polled GPIO buttons interface"
|
||||
+ depends on GENERIC_GPIO
|
||||
+ select INPUT_POLLDEV
|
||||
+ help
|
||||
+ This driver implements support for buttons connected
|
||||
+ to GPIO pins of various CPUs (and some other chips).
|
||||
+
|
||||
+ Say Y here if your device has buttons connected
|
||||
+ directly to such GPIO pins. Your board-specific
|
||||
+ setup logic must also provide a platform device,
|
||||
+ with configuration data saying which GPIOs are used.
|
||||
+
|
||||
+ To compile this driver as a module, choose M here: the
|
||||
+ module will be called gpio-buttons.
|
||||
+
|
||||
endif
|
||||
--- linux-2.6.23.orig/drivers/input/misc/Makefile 2007-08-21 06:33:06.000000000 +0200
|
||||
+++ linux-2.6.23/drivers/input/misc/Makefile 2007-10-08 10:50:12.000000000 +0200
|
||||
@@ -18,3 +18,4 @@
|
||||
obj-$(CONFIG_INPUT_YEALINK) += yealink.o
|
||||
obj-$(CONFIG_HP_SDC_RTC) += hp_sdc_rtc.o
|
||||
obj-$(CONFIG_INPUT_UINPUT) += uinput.o
|
||||
+obj-$(CONFIG_INPUT_GPIO_BUTTONS) += gpio_buttons.o
|
||||
|
|
@ -0,0 +1,30 @@
|
|||
--- linux-2.6.24.2.orig/drivers/input/misc/Kconfig 2007-08-21 06:33:06.000000000 +0200
|
||||
+++ linux-2.6.24.2/drivers/input/misc/Kconfig 2007-10-08 10:57:23.000000000 +0200
|
||||
@@ -178,4 +178,20 @@
|
||||
Say Y here if you want to support the built-in real time clock
|
||||
of the HP SDC controller.
|
||||
|
||||
+config INPUT_GPIO_BUTTONS
|
||||
+ tristate "Polled GPIO buttons interface"
|
||||
+ depends on GENERIC_GPIO
|
||||
+ select INPUT_POLLDEV
|
||||
+ help
|
||||
+ This driver implements support for buttons connected
|
||||
+ to GPIO pins of various CPUs (and some other chips).
|
||||
+
|
||||
+ Say Y here if your device has buttons connected
|
||||
+ directly to such GPIO pins. Your board-specific
|
||||
+ setup logic must also provide a platform device,
|
||||
+ with configuration data saying which GPIOs are used.
|
||||
+
|
||||
+ To compile this driver as a module, choose M here: the
|
||||
+ module will be called gpio-buttons.
|
||||
+
|
||||
endif
|
||||
--- linux-2.6.24.2.orig/drivers/input/misc/Makefile 2007-08-21 06:33:06.000000000 +0200
|
||||
+++ linux-2.6.24.2/drivers/input/misc/Makefile 2007-10-08 10:50:12.000000000 +0200
|
||||
@@ -18,3 +18,4 @@
|
||||
obj-$(CONFIG_INPUT_YEALINK) += yealink.o
|
||||
obj-$(CONFIG_HP_SDC_RTC) += hp_sdc_rtc.o
|
||||
obj-$(CONFIG_INPUT_UINPUT) += uinput.o
|
||||
+obj-$(CONFIG_INPUT_GPIO_BUTTONS) += gpio_buttons.o
|
||||
Loading…
Reference in New Issue