/* * diag_led.c - replacement diag module * * Copyright (C) 2004-2006 Mike Baker, * Imre Kaloz , * Felix Fietkau * * 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: 005-diag_led.patch 3355 2006-03-13 07:57:51Z nbd $ */ /* * 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 #include #include #include #include #include #include #include extern char * nvram_get(const char *name); static void *sbh; // v2.x - - - - - #define BITS(n) ((1 << n) - 1) #define ISSET(n,b) ((n & (1 << b)) ? 1 : 0) #define DIAG_GPIO (1<<1) #define AOSS_GPIO (1<<6) #define DMZ_GPIO (1<<7) #define SES_GPIO ((1 << 2) | (1 << 3) | (1 << 5)) 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); } static void v2_set_aoss(u8 state) { set_gpio(AOSS_GPIO,state); } static void v2_set_ses(u8 state) { set_gpio(SES_GPIO, (ISSET(state, 0) << 2) | (ISSET(state, 1) << 3) | (ISSET(state, 2) << 5)); } // 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 (1 << 0) #define BIT_DIAG (1 << 2) #define BIT_SES (BITS(3) << 3) void (*set_diag)(u8 state); void (*set_dmz)(u8 state); void (*set_ses)(u8 state); static unsigned int diag_reverse = 1; static unsigned int ses_reverse = 1; static unsigned int diag = 0; static void diag_change() { set_diag(diag_reverse ? 0xFF : 0x00); // off set_dmz(diag_reverse ? 0xFF : 0x00); // off set_ses(ses_reverse ? 0xFF : 0x00); // off if(diag & BIT_DIAG) set_diag(diag_reverse ? 0x00 : 0xFF); // on if(diag & BIT_DMZ) set_dmz(diag_reverse ? 0x00 : 0xFF); // on if(diag & BIT_SES) set_ses(((ses_reverse ? ~diag : diag) >> 3) & BITS(3)); } 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 unsigned char button_gpio = 0; static unsigned char button_polarity = 0; static unsigned int button = 0; static int read_gpio(int gpio, int polarity) { int res; if (gpio) { sb_gpiocontrol(sbh,gpio,gpio); sb_gpioouten(sbh,gpio,0); res=!(sb_gpioin(sbh)&gpio); return (polarity ? !res : res); } return 0; } static int proc_reset(ctl_table *table, int write, struct file *filp, void *buffer, size_t *lenp) { reset = read_gpio(reset_gpio, reset_polarity); return proc_dointvec(table, write, filp, buffer, lenp); } static int proc_button(ctl_table *table, int write, struct file *filp, void *buffer, size_t *lenp) { button = read_gpio(button_gpio, button_polarity); 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 }, { ctl_name: 2002, procname: "button", data: &button, maxlen: sizeof(button), mode: 0444, proc_handler: proc_button }, { 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; set_ses=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; set_ses=v2_set_ses; reset_gpio=(1<<6); button_gpio=(1<<4); if (!strcmp((nvram_get("boardtype")?:""), "0x0101")) // WRT54G3G ses_reverse = 0; else ses_reverse = 1; } if (!strcmp(buf,"44")) { //motorola reset_gpio=(1<<5); } if (!strcmp(buf,"00")) { //buffalo diag_reverse = 0; set_dmz=v2_set_diag; set_diag=v2_set_aoss; 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); if (button_gpio) { sb_gpiocontrol(sbh,button_gpio,button_gpio); sb_gpioouten(sbh,button_gpio,0); button_polarity=!(sb_gpioin(sbh)&button_gpio); } else { // don't create /proc/button sys_diag[2].ctl_name = 0; } 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);