add diag.o for brcm-2.4 by default, add fixes for wap54g from Tomas Vanek
[openwrt/svn-archive/archive.git] / openwrt / target / linux / package / diag / diag_led.c
1 /*
2 * diag_led.c - replacement diag module
3 *
4 * Copyright (C) 2004 Mike Baker,
5 * Imre Kaloz <kaloz@dune.hu>
6 *
7 * This program is free software; you can redistribute it and/or
8 * modify it under the terms of the GNU General Public License
9 * as published by the Free Software Foundation; either version 2
10 * of the License, or (at your option) any later version.
11 *
12 * This program is distributed in the hope that it will be useful,
13 * but WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 * GNU General Public License for more details.
16 *
17 * You should have received a copy of the GNU General Public License
18 * along with this program; if not, write to the Free Software
19 * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
20 *
21 * $Id$
22 */
23
24 /*
25 * ChangeLog:
26 * 2004/03/28 initial release
27 * 2004/08/26 asus & buffalo support added
28 * 2005/03/14 asus wl-500g deluxe and buffalo v2 support added
29 * 2005/04/13 added licensing informations
30 * 2005/04/18 base reset polarity off initial readings
31 * 2006/02/07 motorola wa840g/we800g support added
32 */
33
34 #include <linux/module.h>
35 #include <linux/init.h>
36 #include <linux/kernel.h>
37 #include <linux/sysctl.h>
38 #include <asm/io.h>
39 #include <typedefs.h>
40 #include <osl.h>
41 #include <bcmdevs.h>
42 #include <sbutils.h>
43
44 extern char * nvram_get(const char *name);
45 static void *sbh;
46
47 // v2.x - - - - -
48 #define DIAG_GPIO (1<<1)
49 #define DMZ_GPIO (1<<7)
50
51 static void set_gpio(uint32 mask, uint32 value) {
52 sb_gpiocontrol(sbh,mask, 0, GPIO_DRV_PRIORITY);
53 sb_gpioouten(sbh,mask,mask,GPIO_DRV_PRIORITY);
54 sb_gpioout(sbh,mask,value,GPIO_DRV_PRIORITY);
55 }
56
57 static void v2_set_diag(u8 state) {
58 set_gpio(DIAG_GPIO,state);
59 }
60 static void v2_set_dmz(u8 state) {
61 set_gpio(DMZ_GPIO,state);
62 }
63
64 // v1.x - - - - -
65 #define LED_DIAG 0x13
66 #define LED_DMZ 0x12
67
68 static void v1_set_diag(u8 state) {
69 if (!state) {
70 *(volatile u8*)(KSEG1ADDR(BCM4710_EUART)+LED_DIAG)=0xFF;
71 } else {
72 *(volatile u8*)(KSEG1ADDR(BCM4710_EUART)+LED_DIAG);
73 }
74 }
75 static void v1_set_dmz(u8 state) {
76 if (!state) {
77 *(volatile u8*)(KSEG1ADDR(BCM4710_EUART)+LED_DMZ)=0xFF;
78 } else {
79 *(volatile u8*)(KSEG1ADDR(BCM4710_EUART)+LED_DMZ);
80 }
81 }
82
83 static void wap1_set_diag(u8 state) {
84 set_gpio(1<<3,state);
85 }
86 static void wap1_set_dmz(u8 state) {
87 set_gpio(1<<4,state);
88 }
89
90 // - - - - -
91 static void ignore(u8 ignored) {};
92
93 // - - - - -
94 #define BIT_DMZ 0x01
95 #define BIT_DIAG 0x04
96
97 void (*set_diag)(u8 state);
98 void (*set_dmz)(u8 state);
99
100 static unsigned int diag = 0;
101
102 static void diag_change()
103 {
104 set_diag(0xFF); // off
105 set_dmz(0xFF); // off
106
107 if(diag & BIT_DIAG)
108 set_diag(0x00); // on
109 if(diag & BIT_DMZ)
110 set_dmz(0x00); // on
111 }
112
113 static int proc_diag(ctl_table *table, int write, struct file *filp,
114 void *buffer, size_t *lenp)
115 {
116 int r;
117 r = proc_dointvec(table, write, filp, buffer, lenp);
118 if (write && !r) {
119 diag_change();
120 }
121 return r;
122 }
123
124 // - - - - -
125 static unsigned char reset_gpio = 0;
126 static unsigned char reset_polarity = 0;
127 static unsigned int reset = 0;
128
129 static int proc_reset(ctl_table *table, int write, struct file *filp,
130 void *buffer, size_t *lenp)
131 {
132
133 if (reset_gpio) {
134 sb_gpiocontrol(sbh,reset_gpio,reset_gpio,GPIO_DRV_PRIORITY);
135 sb_gpioouten(sbh,reset_gpio,0,GPIO_DRV_PRIORITY);
136 reset=!(sb_gpioin(sbh)&reset_gpio);
137
138 if (reset_polarity) reset=!reset;
139 } else {
140 reset=0;
141 }
142
143 return proc_dointvec(table, write, filp, buffer, lenp);
144 }
145
146 // - - - - -
147 static struct ctl_table_header *diag_sysctl_header;
148
149 static ctl_table sys_diag[] = {
150 {
151 ctl_name: 2000,
152 procname: "diag",
153 data: &diag,
154 maxlen: sizeof(diag),
155 mode: 0644,
156 proc_handler: proc_diag
157 },
158 {
159 ctl_name: 2001,
160 procname: "reset",
161 data: &reset,
162 maxlen: sizeof(reset),
163 mode: 0444,
164 proc_handler: proc_reset
165 },
166 { 0 }
167 };
168
169 static int __init diag_init()
170 {
171 char *buf;
172 u32 board_type;
173 sbh = sb_kattach();
174 sb_gpiosetcore(sbh);
175
176 board_type = sb_boardtype(sbh);
177 printk(KERN_INFO "diag boardtype: %08x\n",board_type);
178
179 set_diag=ignore;
180 set_dmz=ignore;
181
182 buf=nvram_get("pmon_ver") ?: "";
183 if (((board_type & 0xf00) == 0x400) && (strncmp(buf, "CFE", 3) != 0)) {
184 buf=nvram_get("boardtype")?:"";
185 if (!strncmp(buf,"bcm94710dev",11)) {
186 buf=nvram_get("boardnum")?:"";
187 if (!strcmp(buf,"42")) {
188 // wrt54g v1.x
189 set_diag=v1_set_diag;
190 set_dmz=v1_set_dmz;
191 reset_gpio=(1<<6);
192 }
193 if (simple_strtoul(buf, NULL, 0) == 2) {
194 // wap54g v1.0
195 // do not use strcmp as PMON v5.3.22 has some built-in nvram
196 // defaults with trailing \r
197 set_diag=wap1_set_diag;
198 // no dmz led on wap54g, used green led
199 // labeled "WLAN Link" instead
200 set_dmz=wap1_set_dmz;
201 reset_gpio=(1<<0);
202 }
203 if (!strcmp(buf,"asusX")) {
204 //asus wl-500g
205 reset_gpio=(1<<6);
206 }
207 if (!strcmp(buf,"2")) {
208 //wa840g v1 / we800g v1
209 reset_gpio=(1<<0);
210 }
211 }
212 if (!strcmp(buf,"bcm94710ap")) {
213 buf=nvram_get("boardnum")?:"";
214 if (!strcmp(buf,"42")) {
215 // buffalo
216 set_dmz=v2_set_dmz;
217 reset_gpio=(1<<4);
218 }
219 if (!strcmp(buf,"44")) {
220 //dell truemobile
221 set_dmz=v2_set_dmz;
222 reset_gpio=(1<<0);
223 }
224 }
225 } else {
226 buf=nvram_get("boardnum")?:"";
227 if (!strcmp(buf,"42")) {
228 //linksys
229 set_diag=v2_set_diag;
230 set_dmz=v2_set_dmz;
231 reset_gpio=(1<<6);
232 }
233 if (!strcmp(buf,"44")) {
234 //motorola
235 reset_gpio=(1<<5);
236 }
237 if (!strcmp(buf,"00")) {
238 //buffalo
239 reset_gpio=(1<<7);
240 }
241 if (!strcmp(buf,"45")) {
242 //wl-500g deluxe
243 reset_gpio=(1<<6);
244 }
245 }
246
247
248 sb_gpiocontrol(sbh,reset_gpio,reset_gpio,GPIO_DRV_PRIORITY);
249 sb_gpioouten(sbh,reset_gpio,0,GPIO_DRV_PRIORITY);
250 reset_polarity=!(sb_gpioin(sbh)&reset_gpio);
251
252 diag_sysctl_header = register_sysctl_table(sys_diag, 0);
253 diag_change();
254
255 return 0;
256 }
257
258 static void __exit diag_exit()
259 {
260 unregister_sysctl_table(diag_sysctl_header);
261 }
262
263 EXPORT_NO_SYMBOLS;
264 MODULE_AUTHOR("openwrt.org");
265 MODULE_LICENSE("GPL");
266
267 module_init(diag_init);
268 module_exit(diag_exit);