[adm5120] switch to 2.6.23
[openwrt/svn-archive/archive.git] / target / linux / adm5120 / files / drivers / leds / leds-adm5120.c
1 /*
2 * $Id$
3 *
4 * ADM5120 GPIO LED devices
5 *
6 * Copyright (C) 2007 OpenWrt.org
7 * Copyright (C) 2007 Gabor Juhos <juhosg at openwrt.org>
8 *
9 * This program is free software; you can redistribute it and/or
10 * modify it under the terms of the GNU General Public License
11 * as published by the Free Software Foundation; either version 2
12 * of the License, or (at your option) any later version.
13 *
14 * This program is distributed in the hope that it will be useful,
15 * but WITHOUT ANY WARRANTY; without even the implied warranty of
16 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
17 * GNU General Public License for more details.
18 *
19 * You should have received a copy of the GNU General Public License
20 * along with this program; if not, write to the
21 * Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
22 * Boston, MA 02110-1301, USA.
23 *
24 */
25
26 #include <linux/kernel.h>
27 #include <linux/init.h>
28 #include <linux/platform_device.h>
29 #include <linux/leds.h>
30 #include <linux/err.h>
31
32 #include <linux/io.h>
33 #include <linux/leds.h>
34
35 #include <asm/bootinfo.h>
36 #include <asm/gpio.h>
37
38 #include <adm5120_info.h>
39
40 #define NUM_LEDS_MAX 23
41
42 #define ADM5120_GPIO_xxxx 0x100 /* an unknown pin */
43
44 struct mach_data {
45 unsigned long machtype;
46 unsigned nr_leds;
47 struct gpio_led *leds;
48 };
49
50 struct adm5120_leddev {
51 struct platform_device pdev;
52 struct gpio_led led;
53 struct gpio_led_platform_data pdata;
54 };
55
56 static int led_count = 0;
57 static struct adm5120_leddev *led_devs[NUM_LEDS_MAX];
58
59 #define LED_ARRAY(n) \
60 static struct gpio_led n ## _leds [] __initdata =
61
62 #define LED_DATA(n,t,g,al) { \
63 .name = (n), \
64 .default_trigger = (t), \
65 .gpio = (g), \
66 .active_low = (al) \
67 }
68
69 #define LED_STD(g,n,t) LED_DATA((n),(t),(g), 0)
70 #define LED_INV(g,n,t) LED_DATA((n),(t),(g), 1)
71
72 /*
73 * Compex boards
74 */
75 #if defined(CONFIG_LEDS_ADM5120_EXPERIMENTAL)
76 LED_ARRAY(np27g) { /* FIXME: untested */
77 LED_STD(ADM5120_GPIO_xxxx, "lan1", NULL ),
78 LED_STD(ADM5120_GPIO_xxxx, "lan2", NULL ),
79 LED_STD(ADM5120_GPIO_xxxx, "lan3", NULL ),
80 LED_STD(ADM5120_GPIO_xxxx, "lan4", NULL ),
81 LED_STD(ADM5120_GPIO_xxxx, "wan_cond", NULL ),
82 LED_STD(ADM5120_GPIO_xxxx, "wlan", NULL ),
83 LED_STD(ADM5120_GPIO_xxxx, "wan_act", NULL ),
84 LED_STD(ADM5120_GPIO_xxxx, "usb1", NULL ),
85 LED_STD(ADM5120_GPIO_xxxx, "usb2", NULL ),
86 LED_INV(ADM5120_GPIO_PIN2, "power", NULL ),
87 LED_STD(ADM5120_GPIO_xxxx, "diag", NULL ),
88 };
89 #endif
90
91 #if defined(CONFIG_LEDS_ADM5120_EXPERIMENTAL)
92 LED_ARRAY(np28g) { /* FIXME: untested */
93 LED_STD(ADM5120_GPIO_xxxx, "lan1", NULL ),
94 LED_STD(ADM5120_GPIO_xxxx, "lan2", NULL ),
95 LED_STD(ADM5120_GPIO_xxxx, "lan3", NULL ),
96 LED_STD(ADM5120_GPIO_xxxx, "wan", NULL ),
97 LED_STD(ADM5120_GPIO_xxxx, "wlan", NULL ),
98 LED_STD(ADM5120_GPIO_xxxx, "usb1", NULL ),
99 LED_STD(ADM5120_GPIO_xxxx, "usb2", NULL ),
100 LED_STD(ADM5120_GPIO_xxxx, "usb3", NULL ),
101 LED_STD(ADM5120_GPIO_xxxx, "usb4", NULL ),
102 LED_INV(ADM5120_GPIO_PIN2, "power", NULL ),
103 LED_STD(ADM5120_GPIO_xxxx, "diag", NULL ),
104 };
105 #endif
106
107 LED_ARRAY(wp54g) {
108 LED_INV(ADM5120_GPIO_PIN2, "diag", NULL ),
109 LED_INV(ADM5120_GPIO_PIN6, "wlan", NULL ),
110 LED_INV(ADM5120_GPIO_PIN7, "wan", NULL ),
111 LED_INV(ADM5120_GPIO_P0L0, "lan1", NULL ),
112 LED_INV(ADM5120_GPIO_P1L0, "lan2", NULL ),
113 };
114
115 /*
116 * Edimax boards
117 */
118 LED_ARRAY(br6104k) {
119 LED_STD(ADM5120_GPIO_PIN0, "power", NULL ),
120 LED_INV(ADM5120_GPIO_P0L1, "wan_speed", NULL ),
121 LED_INV(ADM5120_GPIO_P0L0, "wan_lnkact", NULL ),
122 LED_INV(ADM5120_GPIO_P1L1, "lan1_speed", NULL ),
123 LED_INV(ADM5120_GPIO_P1L0, "lan1_lnkact", NULL ),
124 LED_INV(ADM5120_GPIO_P2L1, "lan2_speed", NULL ),
125 LED_INV(ADM5120_GPIO_P2L0, "lan2_lnkact", NULL ),
126 LED_INV(ADM5120_GPIO_P3L1, "lan3_speed", NULL ),
127 LED_INV(ADM5120_GPIO_P3L0, "lan3_lnkact", NULL ),
128 LED_INV(ADM5120_GPIO_P4L1, "lan4_speed", NULL ),
129 LED_INV(ADM5120_GPIO_P4L0, "lan4_lnkact", NULL ),
130 };
131
132 /*
133 * Mikrotik boards
134 */
135 #if defined(CONFIG_LEDS_ADM5120_EXPERIMENTAL)
136 LED_ARRAY(rb100) { /* FIXME: untested */
137 LED_STD(ADM5120_GPIO_PIN6, "power", NULL ),
138 LED_STD(ADM5120_GPIO_PIN3, "user", NULL ),
139 };
140 #endif
141
142 LED_ARRAY(rb133) {
143 LED_STD(ADM5120_GPIO_PIN6, "power", NULL ),
144 LED_STD(ADM5120_GPIO_PIN5, "user", NULL ),
145 };
146
147 /*
148 * ZyXEL boards
149 */
150 #if defined(CONFIG_LEDS_ADM5120_EXPERIMENTAL)
151 LED_ARRAY(p334) { /* FIXME: untested */
152 LED_INV(ADM5120_GPIO_xxxx, "power", NULL ),
153 LED_INV(ADM5120_GPIO_xxxx, "lan1", NULL ),
154 LED_INV(ADM5120_GPIO_xxxx, "lan2", NULL ),
155 LED_INV(ADM5120_GPIO_xxxx, "lan3", NULL ),
156 LED_INV(ADM5120_GPIO_xxxx, "lan4", NULL ),
157 LED_INV(ADM5120_GPIO_xxxx, "wan", NULL ),
158 };
159 #endif
160
161 LED_ARRAY(p334wt) {
162 LED_INV(ADM5120_GPIO_PIN2, "power", NULL ),
163 LED_INV(ADM5120_GPIO_P3L0, "lan1", NULL ),
164 LED_INV(ADM5120_GPIO_P2L0, "lan2", NULL ),
165 LED_INV(ADM5120_GPIO_P1L0, "lan3", NULL ),
166 LED_INV(ADM5120_GPIO_P0L0, "lan4", NULL ),
167 LED_INV(ADM5120_GPIO_P4L0, "wan", NULL ),
168 LED_INV(ADM5120_GPIO_P4L2, "wlan", NULL ),
169 LED_INV(ADM5120_GPIO_P2L2, "otist", NULL ),
170 LED_INV(ADM5120_GPIO_P1L2, "hidden", NULL ),
171 };
172
173 #if defined(CONFIG_LEDS_ADM5120_EXPERIMENTAL)
174 LED_ARRAY(p335) { /* FIXME: untested */
175 LED_INV(ADM5120_GPIO_PIN2, "power", NULL ),
176 LED_INV(ADM5120_GPIO_P3L0, "lan1", NULL ),
177 LED_INV(ADM5120_GPIO_P2L0, "lan2", NULL ),
178 LED_INV(ADM5120_GPIO_P1L0, "lan3", NULL ),
179 LED_INV(ADM5120_GPIO_P0L0, "lan4", NULL ),
180 LED_INV(ADM5120_GPIO_P4L0, "wan", NULL ),
181 LED_INV(ADM5120_GPIO_P4L2, "wlan", NULL ),
182 LED_INV(ADM5120_GPIO_P2L2, "otist", NULL ),
183 LED_INV(ADM5120_GPIO_xxxx, "usb", NULL ),
184 };
185 #endif
186
187 /*
188 * Generic board
189 */
190 LED_ARRAY(generic) {
191 #if defined(CONFIG_LEDS_ADM5120_DIAG)
192 LED_STD(ADM5120_GPIO_PIN0, "gpio0", NULL ),
193 LED_STD(ADM5120_GPIO_PIN1, "gpio1", NULL ),
194 LED_STD(ADM5120_GPIO_PIN2, "gpio2", NULL ),
195 LED_STD(ADM5120_GPIO_PIN3, "gpio3", NULL ),
196 LED_STD(ADM5120_GPIO_PIN4, "gpio4", NULL ),
197 LED_STD(ADM5120_GPIO_PIN5, "gpio5", NULL ),
198 LED_STD(ADM5120_GPIO_PIN6, "gpio6", NULL ),
199 LED_STD(ADM5120_GPIO_PIN7, "gpio7", NULL ),
200 LED_STD(ADM5120_GPIO_P0L0, "port0led0", NULL ),
201 LED_STD(ADM5120_GPIO_P0L1, "port0led1", NULL ),
202 LED_STD(ADM5120_GPIO_P0L2, "port0led2", NULL ),
203 LED_STD(ADM5120_GPIO_P1L0, "port1led0", NULL ),
204 LED_STD(ADM5120_GPIO_P1L1, "port1led1", NULL ),
205 LED_STD(ADM5120_GPIO_P1L2, "port1led2", NULL ),
206 LED_STD(ADM5120_GPIO_P2L0, "port2led0", NULL ),
207 LED_STD(ADM5120_GPIO_P2L1, "port2led1", NULL ),
208 LED_STD(ADM5120_GPIO_P2L2, "port2led2", NULL ),
209 LED_STD(ADM5120_GPIO_P3L0, "port3led0", NULL ),
210 LED_STD(ADM5120_GPIO_P3L1, "port3led1", NULL ),
211 LED_STD(ADM5120_GPIO_P3L2, "port3led2", NULL ),
212 LED_STD(ADM5120_GPIO_P4L0, "port4led0", NULL ),
213 LED_STD(ADM5120_GPIO_P4L1, "port4led1", NULL ),
214 LED_STD(ADM5120_GPIO_P4L2, "port4led2", NULL ),
215 #endif
216 };
217
218 #define MACH_DATA(m, n) { \
219 .machtype = (m), \
220 .nr_leds = ARRAY_SIZE(n ## _leds), \
221 .leds = n ## _leds \
222 }
223
224 static struct mach_data machines[] __initdata = {
225 MACH_DATA(MACH_ADM5120_GENERIC, generic),
226 /* Compex */
227 MACH_DATA(MACH_ADM5120_WP54AG, wp54g),
228 MACH_DATA(MACH_ADM5120_WP54G, wp54g),
229 MACH_DATA(MACH_ADM5120_WP54G_WRT, wp54g),
230 MACH_DATA(MACH_ADM5120_WPP54AG, wp54g),
231 MACH_DATA(MACH_ADM5120_WPP54G, wp54g),
232 /* Edimax */
233 MACH_DATA(MACH_ADM5120_BR6104K, br6104k),
234 /* Mikrotik */
235 MACH_DATA(MACH_ADM5120_RB_133, rb133),
236 MACH_DATA(MACH_ADM5120_RB_133C, rb133),
237 /* ZyXEL */
238 MACH_DATA(MACH_ADM5120_P334WT, p334wt),
239 #if defined(CONFIG_LEDS_ADM5120_EXPERIMENTAL)
240 /* untested */
241 MACH_DATA(MACH_ADM5120_P334, p334),
242 MACH_DATA(MACH_ADM5120_P335, p335),
243 MACH_DATA(MACH_ADM5120_RB_111, rb100),
244 MACH_DATA(MACH_ADM5120_RB_112, rb100),
245 MACH_DATA(MACH_ADM5120_NP27G, np27g),
246 MACH_DATA(MACH_ADM5120_NP28G, np28g),
247 MACH_DATA(MACH_ADM5120_NP28GHS, np28g),
248 #endif
249 };
250
251 static struct adm5120_leddev * __init
252 create_leddev(int id, struct gpio_led *led)
253 {
254 struct adm5120_leddev *p;
255
256 p = kzalloc(sizeof(*p), GFP_KERNEL);
257 if (p == NULL)
258 return NULL;
259
260 memcpy(&p->led, led, sizeof(p->led));
261 p->pdev.name = "leds-gpio";
262 p->pdev.id = id;
263 p->pdev.dev.platform_data = &p->pdata;
264 p->pdata.num_leds=1;
265 p->pdata.leds = &p->led;
266
267 return p;
268 }
269
270 static void
271 destroy_leddev(struct adm5120_leddev *leddev)
272 {
273 if (leddev)
274 kfree(leddev);
275 }
276
277 static struct mach_data * __init
278 adm5120_leds_findmach(unsigned long machtype)
279 {
280 struct mach_data *mach;
281 int i;
282
283 mach = NULL;
284 for (i=0; i<ARRAY_SIZE(machines); i++) {
285 if (machines[i].machtype == machtype) {
286 mach = &machines[i];
287 break;
288 }
289 };
290
291 #if defined(CONFIG_LEDS_ADM5120_DIAG)
292 if (mach == NULL)
293 mach = machines;
294 #endif
295
296 return mach;
297 }
298
299 static int __init
300 adm5120_leds_init(void)
301 {
302 struct mach_data *mach;
303 int i, ret;
304
305 if (mips_machgroup != MACH_GROUP_ADM5120) {
306 ret = -EINVAL;
307 goto err;
308 }
309
310 mach = adm5120_leds_findmach(mips_machtype);
311 if (mach == NULL) {
312 /* the board is not yet supported */
313 ret = -EINVAL;
314 goto err;
315 }
316
317 for (i=0; i < mach->nr_leds; i++) {
318 led_devs[i] = create_leddev(i, &mach->leds[i]);
319 if (led_devs[i] == NULL) {
320 ret = -ENOMEM;
321 goto err_destroy;
322 }
323 }
324
325 for (i=0; i < mach->nr_leds; i++) {
326 ret = platform_device_register(&led_devs[i]->pdev);
327 if (ret)
328 goto err_unregister;
329 }
330
331 led_count = mach->nr_leds;
332 return 0;
333
334 err_unregister:
335 for (i--; i>=0; i--)
336 platform_device_unregister(&led_devs[i]->pdev);
337
338 err_destroy:
339 for (i=0; i<led_count; i++)
340 destroy_leddev(led_devs[i]);
341 err:
342 return ret;
343 }
344
345 static void __exit
346 adm5120_leds_exit(void)
347 {
348 int i;
349
350 for (i=0; i < led_count; i++) {
351 platform_device_unregister(&led_devs[i]->pdev);
352 destroy_leddev(led_devs[i]);
353 }
354 }
355
356 module_init(adm5120_leds_init);
357 module_exit(adm5120_leds_exit);
358
359 MODULE_AUTHOR("Gabor Juhos <juhosg at openwrt.org>");
360 MODULE_DESCRIPTION(DRV_DESC);
361 MODULE_LICENSE("GPL");
362