mirror of
git://projects.qi-hardware.com/openwrt-xburst.git
synced 2024-11-14 22:28:27 +02:00
d45352ad01
git-svn-id: svn://svn.openwrt.org/openwrt/trunk@30787 3c298f89-4303-0410-b956-a3cf2f4a3e73
115 lines
2.8 KiB
C
115 lines
2.8 KiB
C
/*
|
|
* Copyright (C) 2010 Scott Nicholas <neutronscott@scottn.us>
|
|
*
|
|
* This file is subject to the terms and conditions of the GNU General Public
|
|
* License. See the file "COPYING" in the main directory of this archive
|
|
* for more details.
|
|
*/
|
|
|
|
#include <linux/module.h>
|
|
#include <linux/kernel.h>
|
|
#include <linux/init.h>
|
|
#include <linux/proc_fs.h>
|
|
#include <asm/uaccess.h>
|
|
#include <adm8668.h>
|
|
|
|
int adm8668_sesled_write_proc(struct file *file, const char *buffer, unsigned long count, void *data)
|
|
{
|
|
char buf[8];
|
|
int num;
|
|
|
|
num = (count < 8) ? count : 8;
|
|
|
|
if (copy_from_user(buf, buffer, num))
|
|
{
|
|
printk("copy_from_user failed");
|
|
return -EFAULT;
|
|
}
|
|
num = simple_strtoul(buf, NULL, 16);
|
|
switch (num)
|
|
{
|
|
case 0:
|
|
GPIO_SET_LOW(0);
|
|
CRGPIO_SET_LOW(2);
|
|
break;
|
|
case 1:
|
|
GPIO_SET_LOW(0);
|
|
CRGPIO_SET_HI(2);
|
|
break;
|
|
case 2:
|
|
GPIO_SET_HI(0);
|
|
CRGPIO_SET_HI(2);
|
|
break;
|
|
default:
|
|
break;
|
|
}
|
|
|
|
return count;
|
|
}
|
|
|
|
int adm8668_sesled_read_proc(char *buf, char **start, off_t offset, int count, int *eof, void *data)
|
|
{
|
|
int len = 0;
|
|
int led_state = 0;
|
|
|
|
led_state = (ADM8668_CONFIG_REG(CRGPIO_REG) & 0x100) ? 1 : 0;
|
|
led_state += (ADM8668_WLAN_REG(GPIO_REG) & 0x40) ? 2 : 0;
|
|
len += sprintf(buf+len, "%s\n",
|
|
(led_state&1) ?
|
|
((led_state&2) ? "ORANGE" : "GREEN") : "OFF");
|
|
|
|
return len;
|
|
}
|
|
|
|
int adm8668_button_read_proc(char *buf, char **start, off_t offset,
|
|
int count, int *eof, void *data)
|
|
{
|
|
int len = 0;
|
|
int read_once = ADM8668_CONFIG_REG(CRGPIO_REG);
|
|
int button_flip = (read_once >> 20) & 0x3;
|
|
int button_state = read_once & 0x3;
|
|
|
|
len += sprintf(buf+len, "SES: %s %s\nRESET: %s %s\n",
|
|
(button_state&2) ? "UP" : "DOWN",
|
|
(button_flip&2) ? "FLIP" : "",
|
|
(button_state&1) ? "UP" : "DOWN",
|
|
(button_flip&1) ? "FLIP" : "");
|
|
|
|
return len;
|
|
}
|
|
|
|
int __init adm8668_init_proc(void)
|
|
{
|
|
struct proc_dir_entry *adm8668_proc_dir = NULL;
|
|
struct proc_dir_entry *sesled = NULL;
|
|
int __maybe_unused bogus;
|
|
|
|
/* these are known to be lights. rest are input...? */
|
|
ADM8668_CONFIG_REG(CRGPIO_REG) = GPIO2_OUTPUT_ENABLE;
|
|
ADM8668_WLAN_REG(GPIO_REG) = GPIO0_OUTPUT_ENABLE;
|
|
|
|
/* inital read off of the flipper switcher on the button thingie */
|
|
bogus = ADM8668_CONFIG_REG(CRGPIO_REG);
|
|
|
|
adm8668_proc_dir = proc_mkdir("adm8668", 0);
|
|
if (adm8668_proc_dir == NULL) {
|
|
printk(KERN_ERR "ADM8668 proc: unable to create proc dir.\n");
|
|
return 0;
|
|
}
|
|
create_proc_read_entry("buttons", 0444, adm8668_proc_dir,
|
|
adm8668_button_read_proc, NULL);
|
|
sesled = create_proc_entry("sesled", S_IRUGO|S_IWUGO, adm8668_proc_dir);
|
|
if (sesled) {
|
|
sesled->read_proc = adm8668_sesled_read_proc;
|
|
sesled->write_proc = adm8668_sesled_write_proc;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
module_init(adm8668_init_proc);
|
|
|
|
MODULE_LICENSE("GPL");
|
|
MODULE_AUTHOR("Scott Nicholas <neutronscott@scottn.us>");
|
|
MODULE_DESCRIPTION("ADM8668 ghetto button driver");
|