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/*
* diag_led.c - replacement diag module
*
* Copyright (C) 2004 Mike Baker,
* Imre Kaloz <kaloz@dune.hu>
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* as published by the Free Software Foundation; either version 2
* of the License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
*
* $Id$
*/
/*
* ChangeLog:
* 2004/03/28 initial release
* 2004/08/26 asus & buffalo support added
* 2005/03/14 asus wl-500g deluxe and buffalo v2 support added
* 2005/04/13 added licensing informations
* 2005/04/18 base reset polarity off initial readings
*/
#include <linux/module.h>
#include <linux/init.h>
#include <linux/kernel.h>
#include <linux/sysctl.h>
#include <asm/io.h>
#include <typedefs.h>
#include <bcmdevs.h>
#include <sbutils.h>
extern char * nvram_get(const char *name);
static void *sbh;
// v2.x - - - - -
#define DIAG_GPIO (1<<1)
#define DMZ_GPIO (1<<7)
static void set_gpio(uint32 mask, uint32 value) {
sb_gpiocontrol(sbh,mask,0);
sb_gpioouten(sbh,mask,mask);
sb_gpioout(sbh,mask,value);
}
static void v2_set_diag(u8 state) {
set_gpio(DIAG_GPIO,state);
}
static void v2_set_dmz(u8 state) {
set_gpio(DMZ_GPIO,state);
}
// v1.x - - - - -
#define LED_DIAG 0x13
#define LED_DMZ 0x12
static void v1_set_diag(u8 state) {
if (!state) {
*(volatile u8*)(KSEG1ADDR(BCM4710_EUART)+LED_DIAG)=0xFF;
} else {
*(volatile u8*)(KSEG1ADDR(BCM4710_EUART)+LED_DIAG);
}
}
static void v1_set_dmz(u8 state) {
if (!state) {
*(volatile u8*)(KSEG1ADDR(BCM4710_EUART)+LED_DMZ)=0xFF;
} else {
*(volatile u8*)(KSEG1ADDR(BCM4710_EUART)+LED_DMZ);
}
}
// - - - - -
static void ignore(u8 ignored) {};
// - - - - -
#define BIT_DMZ 0x01
#define BIT_DIAG 0x04
void (*set_diag)(u8 state);
void (*set_dmz)(u8 state);
static unsigned int diag = 0;
static void diag_change()
{
set_diag(0xFF); // off
set_dmz(0xFF); // off
if(diag & BIT_DIAG)
set_diag(0x00); // on
if(diag & BIT_DMZ)
set_dmz(0x00); // on
}
static int proc_diag(ctl_table *table, int write, struct file *filp,
void *buffer, size_t *lenp)
{
int r;
r = proc_dointvec(table, write, filp, buffer, lenp);
if (write && !r) {
diag_change();
}
return r;
}
// - - - - -
static unsigned char reset_gpio = 0;
static unsigned char reset_polarity = 0;
static unsigned int reset = 0;
static int proc_reset(ctl_table *table, int write, struct file *filp,
void *buffer, size_t *lenp)
{
if (reset_gpio) {
sb_gpiocontrol(sbh,reset_gpio,reset_gpio);
sb_gpioouten(sbh,reset_gpio,0);
reset=!(sb_gpioin(sbh)&reset_gpio);
if (reset_polarity) reset=!reset;
} else {
reset=0;
}
return proc_dointvec(table, write, filp, buffer, lenp);
}
// - - - - -
static struct ctl_table_header *diag_sysctl_header;
static ctl_table sys_diag[] = {
{
ctl_name: 2000,
procname: "diag",
data: &diag,
maxlen: sizeof(diag),
mode: 0644,
proc_handler: proc_diag
},
{
ctl_name: 2001,
procname: "reset",
data: &reset,
maxlen: sizeof(reset),
mode: 0444,
proc_handler: proc_reset
},
{ 0 }
};
static int __init diag_init()
{
char *buf;
u32 board_type;
sbh = sb_kattach();
sb_gpiosetcore(sbh);
board_type = sb_boardtype(sbh);
printk(KERN_INFO "diag boardtype: %08x\n",board_type);
set_diag=ignore;
set_dmz=ignore;
buf=nvram_get("pmon_ver") ?: "";
if (((board_type & 0xf00) == 0x400) && (strncmp(buf, "CFE", 3) != 0)) {
buf=nvram_get("boardtype")?:"";
if (!strcmp(buf,"bcm94710dev")) {
buf=nvram_get("boardnum")?:"";
if (!strcmp(buf,"42")) {
// wrt54g v1.x
set_diag=v1_set_diag;
set_dmz=v1_set_dmz;
reset_gpio=(1<<6);
}
if (!strcmp(buf,"asusX")) {
//asus wl-500g
reset_gpio=(1<<6);
}
}
if (!strcmp(buf,"bcm94710ap")) {
buf=nvram_get("boardnum")?:"";
if (!strcmp(buf,"42")) {
// buffalo
set_dmz=v2_set_dmz;
reset_gpio=(1<<4);
}
if (!strcmp(buf,"44")) {
//dell truemobile
set_dmz=v2_set_dmz;
reset_gpio=(1<<0);
}
}
} else {
buf=nvram_get("boardnum")?:"";
if (!strcmp(buf,"42")) {
//linksys
set_diag=v2_set_diag;
set_dmz=v2_set_dmz;
reset_gpio=(1<<6);
}
if (!strcmp(buf,"44")) {
//motorola
reset_gpio=(1<<5);
}
if (!strcmp(buf,"00")) {
//buffalo
reset_gpio=(1<<7);
}
if (!strcmp(buf,"45")) {
//wl-500g deluxe
reset_gpio=(1<<6);
}
}
sb_gpiocontrol(sbh,reset_gpio,reset_gpio);
sb_gpioouten(sbh,reset_gpio,0);
reset_polarity=!(sb_gpioin(sbh)&reset_gpio);
diag_sysctl_header = register_sysctl_table(sys_diag, 0);
diag_change();
return 0;
}
static void __exit diag_exit()
{
unregister_sysctl_table(diag_sysctl_header);
}
EXPORT_NO_SYMBOLS;
MODULE_AUTHOR("openwrt.org");
MODULE_LICENSE("GPL");
module_init(diag_init);
module_exit(diag_exit);
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