remove the now deprecated /proc/adm8668 interface
Proper gpiolib support is hooked instead. Signed-off-by: Florian Fainelli <florian@openwrt.org> SVN-Revision: 34565v19.07.3_mercusys_ac12_duma
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/*
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* Copyright (C) 2010 Scott Nicholas <neutronscott@scottn.us>
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*
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* This file is subject to the terms and conditions of the GNU General Public
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* License. See the file "COPYING" in the main directory of this archive
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* for more details.
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*/
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#include <linux/module.h>
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#include <linux/kernel.h>
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#include <linux/init.h>
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#include <linux/proc_fs.h>
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#include <asm/uaccess.h>
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#include <adm8668.h>
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int adm8668_sesled_write_proc(struct file *file, const char *buffer, unsigned long count, void *data)
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{
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char buf[8];
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int num;
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num = (count < 8) ? count : 8;
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if (copy_from_user(buf, buffer, num))
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{
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printk("copy_from_user failed");
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return -EFAULT;
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}
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num = simple_strtoul(buf, NULL, 16);
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switch (num)
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{
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case 0:
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GPIO_SET_LOW(0);
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CRGPIO_SET_LOW(2);
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break;
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case 1:
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GPIO_SET_LOW(0);
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CRGPIO_SET_HI(2);
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break;
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case 2:
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GPIO_SET_HI(0);
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CRGPIO_SET_HI(2);
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break;
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default:
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break;
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}
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return count;
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}
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int adm8668_sesled_read_proc(char *buf, char **start, off_t offset, int count, int *eof, void *data)
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{
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int len = 0;
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int led_state = 0;
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led_state = (ADM8668_CONFIG_REG(CRGPIO_REG) & 0x100) ? 1 : 0;
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led_state += (ADM8668_WLAN_REG(GPIO_REG) & 0x40) ? 2 : 0;
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len += sprintf(buf+len, "%s\n",
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(led_state&1) ?
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((led_state&2) ? "ORANGE" : "GREEN") : "OFF");
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return len;
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}
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int adm8668_button_read_proc(char *buf, char **start, off_t offset,
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int count, int *eof, void *data)
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{
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int len = 0;
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int read_once = ADM8668_CONFIG_REG(CRGPIO_REG);
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int button_flip = (read_once >> 20) & 0x3;
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int button_state = read_once & 0x3;
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len += sprintf(buf+len, "SES: %s %s\nRESET: %s %s\n",
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(button_state&2) ? "UP" : "DOWN",
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(button_flip&2) ? "FLIP" : "",
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(button_state&1) ? "UP" : "DOWN",
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(button_flip&1) ? "FLIP" : "");
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return len;
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}
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int __init adm8668_init_proc(void)
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{
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struct proc_dir_entry *adm8668_proc_dir = NULL;
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struct proc_dir_entry *sesled = NULL;
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int __maybe_unused bogus;
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/* these are known to be lights. rest are input...? */
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ADM8668_CONFIG_REG(CRGPIO_REG) = GPIO2_OUTPUT_ENABLE;
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ADM8668_WLAN_REG(GPIO_REG) = GPIO0_OUTPUT_ENABLE;
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/* inital read off of the flipper switcher on the button thingie */
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bogus = ADM8668_CONFIG_REG(CRGPIO_REG);
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adm8668_proc_dir = proc_mkdir("adm8668", 0);
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if (adm8668_proc_dir == NULL) {
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printk(KERN_ERR "ADM8668 proc: unable to create proc dir.\n");
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return 0;
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}
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create_proc_read_entry("buttons", 0444, adm8668_proc_dir,
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adm8668_button_read_proc, NULL);
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sesled = create_proc_entry("sesled", S_IRUGO|S_IWUGO, adm8668_proc_dir);
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if (sesled) {
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sesled->read_proc = adm8668_sesled_read_proc;
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sesled->write_proc = adm8668_sesled_write_proc;
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}
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return 0;
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}
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module_init(adm8668_init_proc);
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MODULE_LICENSE("GPL");
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MODULE_AUTHOR("Scott Nicholas <neutronscott@scottn.us>");
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MODULE_DESCRIPTION("ADM8668 ghetto button driver");
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