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285 lines
6.3 KiB
C
285 lines
6.3 KiB
C
/*
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* diag_led.c - replacement diag module
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*
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* Copyright (C) 2004 Mike Baker,
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* Imre Kaloz <kaloz@dune.hu>
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version 2
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* of the License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
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*
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* $Id$
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*/
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/*
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* ChangeLog:
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* 2004/03/28 initial release
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* 2004/08/26 asus & buffalo support added
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* 2005/03/14 asus wl-500g deluxe and buffalo v2 support added
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* 2005/04/13 added licensing informations
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* 2005/04/18 base reset polarity off initial readings
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* 2006/02/07 motorola wa840g/we800g support added
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* 2006/08/18 asus power led support added
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*/
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#include <linux/module.h>
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#include <linux/init.h>
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#include <linux/kernel.h>
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#include <linux/sysctl.h>
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#include <asm/io.h>
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#include <typedefs.h>
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#include <osl.h>
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#include <bcmdevs.h>
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#include <sbutils.h>
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extern char * nvram_get(const char *name);
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static void *sbh;
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// v2.x - - - - -
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#define DIAG_GPIO (1<<1)
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#define DMZ_GPIO (1<<7)
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static void set_gpio(uint32 mask, uint32 value) {
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sb_gpiocontrol(sbh,mask, 0, GPIO_DRV_PRIORITY);
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sb_gpioouten(sbh,mask,mask,GPIO_DRV_PRIORITY);
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sb_gpioout(sbh,mask,value,GPIO_DRV_PRIORITY);
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}
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static void v2_set_diag(u8 state) {
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set_gpio(DIAG_GPIO,state);
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}
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static void v2_set_dmz(u8 state) {
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set_gpio(DMZ_GPIO,state);
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}
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// asus wl-500g (+deluxe)
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#define ASUS_PWR_GPIO (1<<0)
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static void asus_set_pwr(u8 state) {
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set_gpio(ASUS_PWR_GPIO,state);
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}
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// v1.x - - - - -
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#define LED_DIAG 0x13
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#define LED_DMZ 0x12
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static void v1_set_diag(u8 state) {
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if (!state) {
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*(volatile u8*)(KSEG1ADDR(BCM4710_EUART)+LED_DIAG)=0xFF;
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} else {
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*(volatile u8*)(KSEG1ADDR(BCM4710_EUART)+LED_DIAG);
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}
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}
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static void v1_set_dmz(u8 state) {
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if (!state) {
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*(volatile u8*)(KSEG1ADDR(BCM4710_EUART)+LED_DMZ)=0xFF;
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} else {
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*(volatile u8*)(KSEG1ADDR(BCM4710_EUART)+LED_DMZ);
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}
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}
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static void wap1_set_diag(u8 state) {
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set_gpio(1<<3,state);
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}
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static void wap1_set_dmz(u8 state) {
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set_gpio(1<<4,state);
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}
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// - - - - -
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static void ignore(u8 ignored) {};
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// - - - - -
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#define BIT_DMZ 0x01
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#define BIT_PWR 0x02
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#define BIT_DIAG 0x04
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void (*set_diag)(u8 state);
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void (*set_dmz)(u8 state);
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void (*set_pwr)(u8 state);
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static unsigned int diag = 0x02; // default: diag off, pwr on, dmz off
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static void diag_change(void)
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{
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set_diag(0xFF); // off
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set_dmz(0xFF); // off
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set_pwr(0xFF); // off
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if(diag & BIT_DIAG)
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set_diag(0x00); // on
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if(diag & BIT_DMZ)
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set_dmz(0x00); // on
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if (diag & BIT_PWR)
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set_pwr(0x00); //on
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}
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static int proc_diag(ctl_table *table, int write, struct file *filp,
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void *buffer, size_t *lenp)
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{
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int r;
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r = proc_dointvec(table, write, filp, buffer, lenp);
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if (write && !r) {
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diag_change();
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}
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return r;
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}
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// - - - - -
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static unsigned char reset_gpio = 0;
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static unsigned char reset_polarity = 0;
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static unsigned int reset = 0;
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static int proc_reset(ctl_table *table, int write, struct file *filp,
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void *buffer, size_t *lenp)
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{
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if (reset_gpio) {
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sb_gpiocontrol(sbh,reset_gpio,reset_gpio,GPIO_DRV_PRIORITY);
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sb_gpioouten(sbh,reset_gpio,0,GPIO_DRV_PRIORITY);
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reset=!(sb_gpioin(sbh)&reset_gpio);
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if (reset_polarity) reset=!reset;
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} else {
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reset=0;
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}
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return proc_dointvec(table, write, filp, buffer, lenp);
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}
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// - - - - -
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static struct ctl_table_header *diag_sysctl_header;
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static ctl_table sys_diag[] = {
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{
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ctl_name: 2000,
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procname: "diag",
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data: &diag,
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maxlen: sizeof(diag),
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mode: 0644,
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proc_handler: proc_diag
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},
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{
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ctl_name: 2001,
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procname: "reset",
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data: &reset,
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maxlen: sizeof(reset),
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mode: 0444,
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proc_handler: proc_reset
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},
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{ 0 }
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};
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static int __init diag_init(void)
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{
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char *buf;
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u32 board_type;
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sbh = (void *)sb_kattach();
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sb_gpiosetcore(sbh);
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board_type = sb_boardtype(sbh);
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printk(KERN_INFO "diag boardtype: %08x\n",board_type);
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set_diag=ignore;
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set_dmz=ignore;
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set_pwr=ignore;
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buf=nvram_get("pmon_ver") ?: "";
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if (((board_type & 0xf00) == 0x400) && (strncmp(buf, "CFE", 3) != 0)) {
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buf=nvram_get("boardtype")?:"";
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if (!strncmp(buf,"bcm94710dev",11)) {
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buf=nvram_get("boardnum")?:"";
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if (!strcmp(buf,"42")) {
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// wrt54g v1.x
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set_diag=v1_set_diag;
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set_dmz=v1_set_dmz;
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reset_gpio=(1<<6);
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}
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if (simple_strtoul(buf, NULL, 0) == 2) {
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// wap54g v1.0
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// do not use strcmp as PMON v5.3.22 has some built-in nvram
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// defaults with trailing \r
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set_diag=wap1_set_diag;
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// no dmz led on wap54g, used green led
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// labeled "WLAN Link" instead
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set_dmz=wap1_set_dmz;
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reset_gpio=(1<<0);
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}
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if (!strcmp(buf,"asusX")) {
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//asus wl-500g
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set_pwr=asus_set_pwr;
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reset_gpio=(1<<6);
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}
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if (!strcmp(buf,"2")) {
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//wa840g v1 / we800g v1
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reset_gpio=(1<<0);
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}
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}
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if (!strcmp(buf,"bcm94710ap")) {
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buf=nvram_get("boardnum")?:"";
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if (!strcmp(buf,"42")) {
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// buffalo
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set_dmz=v2_set_dmz;
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reset_gpio=(1<<4);
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}
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if (!strcmp(buf,"44")) {
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//dell truemobile
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set_dmz=v2_set_dmz;
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reset_gpio=(1<<0);
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}
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}
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} else {
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buf=nvram_get("boardnum")?:"";
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if (!strcmp(buf,"42")) {
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//linksys
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set_diag=v2_set_diag;
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set_dmz=v2_set_dmz;
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reset_gpio=(1<<6);
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}
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if (!strcmp(buf,"44")) {
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//motorola
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reset_gpio=(1<<5);
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}
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if (!strcmp(buf,"00")) {
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//buffalo
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reset_gpio=(1<<7);
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}
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if (!strcmp(buf,"45")) {
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//wl-500g deluxe
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set_pwr=asus_set_pwr;
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reset_gpio=(1<<6);
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}
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}
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sb_gpiocontrol(sbh,reset_gpio,reset_gpio,GPIO_DRV_PRIORITY);
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sb_gpioouten(sbh,reset_gpio,0,GPIO_DRV_PRIORITY);
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reset_polarity=!(sb_gpioin(sbh)&reset_gpio);
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diag_sysctl_header = register_sysctl_table(sys_diag, 0);
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diag_change();
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return 0;
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}
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static void __exit diag_exit(void)
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{
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unregister_sysctl_table(diag_sysctl_header);
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}
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EXPORT_NO_SYMBOLS;
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MODULE_AUTHOR("openwrt.org");
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MODULE_LICENSE("GPL");
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module_init(diag_init);
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module_exit(diag_exit);
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