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d56410e0 | 1 | /* |
1da177e4 LT |
2 | * adv7170 - adv7170, adv7171 video encoder driver version 0.0.1 |
3 | * | |
4 | * Copyright (C) 2002 Maxim Yevtyushkin <max@linuxmedialabs.com> | |
5 | * | |
d56410e0 | 6 | * Based on adv7176 driver by: |
1da177e4 LT |
7 | * |
8 | * Copyright (C) 1998 Dave Perks <dperks@ibm.net> | |
9 | * Copyright (C) 1999 Wolfgang Scherr <scherr@net4you.net> | |
10 | * Copyright (C) 2000 Serguei Miridonov <mirsev@cicese.mx> | |
11 | * - some corrections for Pinnacle Systems Inc. DC10plus card. | |
12 | * | |
13 | * Changes by Ronald Bultje <rbultje@ronald.bitfreak.net> | |
14 | * - moved over to linux>=2.4.x i2c protocol (1/1/2003) | |
15 | * | |
16 | * This program is free software; you can redistribute it and/or modify | |
17 | * it under the terms of the GNU General Public License as published by | |
18 | * the Free Software Foundation; either version 2 of the License, or | |
19 | * (at your option) any later version. | |
20 | * | |
21 | * This program is distributed in the hope that it will be useful, | |
22 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
23 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
24 | * GNU General Public License for more details. | |
25 | * | |
26 | * You should have received a copy of the GNU General Public License | |
27 | * along with this program; if not, write to the Free Software | |
28 | * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. | |
29 | */ | |
30 | ||
31 | #include <linux/module.h> | |
32 | #include <linux/init.h> | |
33 | #include <linux/delay.h> | |
34 | #include <linux/errno.h> | |
35 | #include <linux/fs.h> | |
36 | #include <linux/kernel.h> | |
37 | #include <linux/major.h> | |
38 | #include <linux/slab.h> | |
39 | #include <linux/mm.h> | |
1da177e4 | 40 | #include <linux/signal.h> |
18f3fa1e MCC |
41 | #include <linux/types.h> |
42 | #include <linux/i2c.h> | |
1da177e4 LT |
43 | #include <asm/io.h> |
44 | #include <asm/pgtable.h> | |
45 | #include <asm/page.h> | |
18f3fa1e | 46 | #include <asm/uaccess.h> |
1da177e4 LT |
47 | |
48 | #include <linux/videodev.h> | |
18f3fa1e | 49 | #include <linux/video_encoder.h> |
1da177e4 LT |
50 | |
51 | MODULE_DESCRIPTION("Analog Devices ADV7170 video encoder driver"); | |
52 | MODULE_AUTHOR("Maxim Yevtyushkin"); | |
53 | MODULE_LICENSE("GPL"); | |
54 | ||
1da177e4 LT |
55 | |
56 | #define I2C_NAME(x) (x)->name | |
57 | ||
1da177e4 | 58 | |
ff699e6b | 59 | static int debug; |
1da177e4 LT |
60 | module_param(debug, int, 0); |
61 | MODULE_PARM_DESC(debug, "Debug level (0-1)"); | |
62 | ||
63 | #define dprintk(num, format, args...) \ | |
64 | do { \ | |
65 | if (debug >= num) \ | |
66 | printk(format, ##args); \ | |
67 | } while (0) | |
68 | ||
69 | /* ----------------------------------------------------------------------- */ | |
70 | ||
71 | struct adv7170 { | |
72 | unsigned char reg[128]; | |
73 | ||
74 | int norm; | |
75 | int input; | |
76 | int enable; | |
77 | int bright; | |
78 | int contrast; | |
79 | int hue; | |
80 | int sat; | |
81 | }; | |
82 | ||
83 | #define I2C_ADV7170 0xd4 | |
84 | #define I2C_ADV7171 0x54 | |
85 | ||
86 | static char adv7170_name[] = "adv7170"; | |
87 | static char adv7171_name[] = "adv7171"; | |
88 | ||
89 | static char *inputs[] = { "pass_through", "play_back" }; | |
90 | static char *norms[] = { "PAL", "NTSC" }; | |
91 | ||
92 | /* ----------------------------------------------------------------------- */ | |
93 | ||
94 | static inline int | |
95 | adv7170_write (struct i2c_client *client, | |
96 | u8 reg, | |
97 | u8 value) | |
98 | { | |
99 | struct adv7170 *encoder = i2c_get_clientdata(client); | |
100 | ||
101 | encoder->reg[reg] = value; | |
102 | return i2c_smbus_write_byte_data(client, reg, value); | |
103 | } | |
104 | ||
105 | static inline int | |
106 | adv7170_read (struct i2c_client *client, | |
107 | u8 reg) | |
108 | { | |
109 | return i2c_smbus_read_byte_data(client, reg); | |
110 | } | |
111 | ||
112 | static int | |
113 | adv7170_write_block (struct i2c_client *client, | |
114 | const u8 *data, | |
115 | unsigned int len) | |
116 | { | |
117 | int ret = -1; | |
118 | u8 reg; | |
119 | ||
120 | /* the adv7170 has an autoincrement function, use it if | |
121 | * the adapter understands raw I2C */ | |
122 | if (i2c_check_functionality(client->adapter, I2C_FUNC_I2C)) { | |
123 | /* do raw I2C, not smbus compatible */ | |
124 | struct adv7170 *encoder = i2c_get_clientdata(client); | |
1da177e4 | 125 | u8 block_data[32]; |
9aa45e34 | 126 | int block_len; |
1da177e4 | 127 | |
1da177e4 | 128 | while (len >= 2) { |
9aa45e34 JD |
129 | block_len = 0; |
130 | block_data[block_len++] = reg = data[0]; | |
1da177e4 | 131 | do { |
9aa45e34 | 132 | block_data[block_len++] = |
1da177e4 LT |
133 | encoder->reg[reg++] = data[1]; |
134 | len -= 2; | |
135 | data += 2; | |
136 | } while (len >= 2 && data[0] == reg && | |
9aa45e34 JD |
137 | block_len < 32); |
138 | if ((ret = i2c_master_send(client, block_data, | |
139 | block_len)) < 0) | |
1da177e4 LT |
140 | break; |
141 | } | |
142 | } else { | |
143 | /* do some slow I2C emulation kind of thing */ | |
144 | while (len >= 2) { | |
145 | reg = *data++; | |
146 | if ((ret = adv7170_write(client, reg, | |
147 | *data++)) < 0) | |
148 | break; | |
149 | len -= 2; | |
150 | } | |
151 | } | |
152 | ||
153 | return ret; | |
154 | } | |
155 | ||
156 | /* ----------------------------------------------------------------------- */ | |
157 | // Output filter: S-Video Composite | |
158 | ||
159 | #define MR050 0x11 //0x09 | |
160 | #define MR060 0x14 //0x0c | |
161 | ||
162 | //--------------------------------------------------------------------------- | |
163 | ||
164 | #define TR0MODE 0x4c | |
165 | #define TR0RST 0x80 | |
166 | ||
167 | #define TR1CAPT 0x00 | |
168 | #define TR1PLAY 0x00 | |
169 | ||
170 | ||
171 | static const unsigned char init_NTSC[] = { | |
172 | 0x00, 0x10, // MR0 | |
173 | 0x01, 0x20, // MR1 | |
d56410e0 | 174 | 0x02, 0x0e, // MR2 RTC control: bits 2 and 1 |
1da177e4 LT |
175 | 0x03, 0x80, // MR3 |
176 | 0x04, 0x30, // MR4 | |
177 | 0x05, 0x00, // Reserved | |
178 | 0x06, 0x00, // Reserved | |
179 | 0x07, TR0MODE, // TM0 | |
180 | 0x08, TR1CAPT, // TM1 | |
181 | 0x09, 0x16, // Fsc0 | |
182 | 0x0a, 0x7c, // Fsc1 | |
183 | 0x0b, 0xf0, // Fsc2 | |
184 | 0x0c, 0x21, // Fsc3 | |
185 | 0x0d, 0x00, // Subcarrier Phase | |
186 | 0x0e, 0x00, // Closed Capt. Ext 0 | |
187 | 0x0f, 0x00, // Closed Capt. Ext 1 | |
188 | 0x10, 0x00, // Closed Capt. 0 | |
189 | 0x11, 0x00, // Closed Capt. 1 | |
190 | 0x12, 0x00, // Pedestal Ctl 0 | |
191 | 0x13, 0x00, // Pedestal Ctl 1 | |
192 | 0x14, 0x00, // Pedestal Ctl 2 | |
193 | 0x15, 0x00, // Pedestal Ctl 3 | |
194 | 0x16, 0x00, // CGMS_WSS_0 | |
195 | 0x17, 0x00, // CGMS_WSS_1 | |
196 | 0x18, 0x00, // CGMS_WSS_2 | |
d56410e0 | 197 | 0x19, 0x00, // Teletext Ctl |
1da177e4 LT |
198 | }; |
199 | ||
200 | static const unsigned char init_PAL[] = { | |
201 | 0x00, 0x71, // MR0 | |
202 | 0x01, 0x20, // MR1 | |
203 | 0x02, 0x0e, // MR2 RTC control: bits 2 and 1 | |
204 | 0x03, 0x80, // MR3 | |
205 | 0x04, 0x30, // MR4 | |
206 | 0x05, 0x00, // Reserved | |
207 | 0x06, 0x00, // Reserved | |
208 | 0x07, TR0MODE, // TM0 | |
209 | 0x08, TR1CAPT, // TM1 | |
210 | 0x09, 0xcb, // Fsc0 | |
211 | 0x0a, 0x8a, // Fsc1 | |
212 | 0x0b, 0x09, // Fsc2 | |
213 | 0x0c, 0x2a, // Fsc3 | |
214 | 0x0d, 0x00, // Subcarrier Phase | |
215 | 0x0e, 0x00, // Closed Capt. Ext 0 | |
216 | 0x0f, 0x00, // Closed Capt. Ext 1 | |
217 | 0x10, 0x00, // Closed Capt. 0 | |
218 | 0x11, 0x00, // Closed Capt. 1 | |
219 | 0x12, 0x00, // Pedestal Ctl 0 | |
220 | 0x13, 0x00, // Pedestal Ctl 1 | |
221 | 0x14, 0x00, // Pedestal Ctl 2 | |
222 | 0x15, 0x00, // Pedestal Ctl 3 | |
223 | 0x16, 0x00, // CGMS_WSS_0 | |
224 | 0x17, 0x00, // CGMS_WSS_1 | |
225 | 0x18, 0x00, // CGMS_WSS_2 | |
226 | 0x19, 0x00, // Teletext Ctl | |
227 | }; | |
228 | ||
229 | ||
230 | static int | |
231 | adv7170_command (struct i2c_client *client, | |
232 | unsigned int cmd, | |
233 | void * arg) | |
234 | { | |
235 | struct adv7170 *encoder = i2c_get_clientdata(client); | |
236 | ||
237 | switch (cmd) { | |
238 | ||
239 | case 0: | |
240 | #if 0 | |
241 | /* This is just for testing!!! */ | |
242 | adv7170_write_block(client, init_common, | |
243 | sizeof(init_common)); | |
244 | adv7170_write(client, 0x07, TR0MODE | TR0RST); | |
245 | adv7170_write(client, 0x07, TR0MODE); | |
246 | #endif | |
247 | break; | |
248 | ||
249 | case ENCODER_GET_CAPABILITIES: | |
250 | { | |
251 | struct video_encoder_capability *cap = arg; | |
252 | ||
253 | cap->flags = VIDEO_ENCODER_PAL | | |
254 | VIDEO_ENCODER_NTSC; | |
255 | cap->inputs = 2; | |
256 | cap->outputs = 1; | |
257 | } | |
258 | break; | |
259 | ||
260 | case ENCODER_SET_NORM: | |
261 | { | |
262 | int iarg = *(int *) arg; | |
263 | ||
264 | dprintk(1, KERN_DEBUG "%s_command: set norm %d", | |
265 | I2C_NAME(client), iarg); | |
266 | ||
267 | switch (iarg) { | |
268 | ||
269 | case VIDEO_MODE_NTSC: | |
270 | adv7170_write_block(client, init_NTSC, | |
271 | sizeof(init_NTSC)); | |
272 | if (encoder->input == 0) | |
273 | adv7170_write(client, 0x02, 0x0e); // Enable genlock | |
274 | adv7170_write(client, 0x07, TR0MODE | TR0RST); | |
275 | adv7170_write(client, 0x07, TR0MODE); | |
276 | break; | |
277 | ||
278 | case VIDEO_MODE_PAL: | |
279 | adv7170_write_block(client, init_PAL, | |
280 | sizeof(init_PAL)); | |
281 | if (encoder->input == 0) | |
282 | adv7170_write(client, 0x02, 0x0e); // Enable genlock | |
283 | adv7170_write(client, 0x07, TR0MODE | TR0RST); | |
284 | adv7170_write(client, 0x07, TR0MODE); | |
285 | break; | |
286 | ||
287 | default: | |
288 | dprintk(1, KERN_ERR "%s: illegal norm: %d\n", | |
289 | I2C_NAME(client), iarg); | |
290 | return -EINVAL; | |
291 | ||
292 | } | |
293 | dprintk(1, KERN_DEBUG "%s: switched to %s\n", I2C_NAME(client), | |
294 | norms[iarg]); | |
295 | encoder->norm = iarg; | |
296 | } | |
297 | break; | |
298 | ||
299 | case ENCODER_SET_INPUT: | |
300 | { | |
301 | int iarg = *(int *) arg; | |
302 | ||
303 | /* RJ: *iarg = 0: input is from decoder | |
304 | *iarg = 1: input is from ZR36060 | |
305 | *iarg = 2: color bar */ | |
306 | ||
307 | dprintk(1, KERN_DEBUG "%s_command: set input from %s\n", | |
308 | I2C_NAME(client), | |
309 | iarg == 0 ? "decoder" : "ZR36060"); | |
310 | ||
311 | switch (iarg) { | |
312 | ||
313 | case 0: | |
314 | adv7170_write(client, 0x01, 0x20); | |
315 | adv7170_write(client, 0x08, TR1CAPT); /* TR1 */ | |
316 | adv7170_write(client, 0x02, 0x0e); // Enable genlock | |
317 | adv7170_write(client, 0x07, TR0MODE | TR0RST); | |
318 | adv7170_write(client, 0x07, TR0MODE); | |
319 | //udelay(10); | |
320 | break; | |
321 | ||
322 | case 1: | |
323 | adv7170_write(client, 0x01, 0x00); | |
324 | adv7170_write(client, 0x08, TR1PLAY); /* TR1 */ | |
325 | adv7170_write(client, 0x02, 0x08); | |
326 | adv7170_write(client, 0x07, TR0MODE | TR0RST); | |
327 | adv7170_write(client, 0x07, TR0MODE); | |
328 | //udelay(10); | |
329 | break; | |
330 | ||
331 | default: | |
332 | dprintk(1, KERN_ERR "%s: illegal input: %d\n", | |
333 | I2C_NAME(client), iarg); | |
334 | return -EINVAL; | |
335 | ||
336 | } | |
337 | dprintk(1, KERN_DEBUG "%s: switched to %s\n", I2C_NAME(client), | |
338 | inputs[iarg]); | |
339 | encoder->input = iarg; | |
340 | } | |
341 | break; | |
342 | ||
343 | case ENCODER_SET_OUTPUT: | |
344 | { | |
345 | int *iarg = arg; | |
346 | ||
347 | /* not much choice of outputs */ | |
348 | if (*iarg != 0) { | |
349 | return -EINVAL; | |
350 | } | |
351 | } | |
352 | break; | |
353 | ||
354 | case ENCODER_ENABLE_OUTPUT: | |
355 | { | |
356 | int *iarg = arg; | |
357 | ||
358 | encoder->enable = !!*iarg; | |
359 | } | |
360 | break; | |
361 | ||
362 | default: | |
363 | return -EINVAL; | |
364 | } | |
365 | ||
366 | return 0; | |
367 | } | |
368 | ||
369 | /* ----------------------------------------------------------------------- */ | |
370 | ||
371 | /* | |
372 | * Generic i2c probe | |
373 | * concerning the addresses: i2c wants 7 bit (without the r/w bit), so '>>1' | |
374 | */ | |
375 | static unsigned short normal_i2c[] = | |
376 | { I2C_ADV7170 >> 1, (I2C_ADV7170 >> 1) + 1, | |
377 | I2C_ADV7171 >> 1, (I2C_ADV7171 >> 1) + 1, | |
378 | I2C_CLIENT_END | |
379 | }; | |
1da177e4 | 380 | |
68cc9d0b | 381 | static unsigned short ignore = I2C_CLIENT_END; |
d56410e0 | 382 | |
1da177e4 LT |
383 | static struct i2c_client_address_data addr_data = { |
384 | .normal_i2c = normal_i2c, | |
68cc9d0b JD |
385 | .probe = &ignore, |
386 | .ignore = &ignore, | |
1da177e4 LT |
387 | }; |
388 | ||
389 | static struct i2c_driver i2c_driver_adv7170; | |
390 | ||
391 | static int | |
392 | adv7170_detect_client (struct i2c_adapter *adapter, | |
393 | int address, | |
394 | int kind) | |
395 | { | |
396 | int i; | |
397 | struct i2c_client *client; | |
398 | struct adv7170 *encoder; | |
399 | char *dname; | |
400 | ||
401 | dprintk(1, | |
402 | KERN_INFO | |
403 | "adv7170.c: detecting adv7170 client on address 0x%x\n", | |
404 | address << 1); | |
405 | ||
406 | /* Check if the adapter supports the needed features */ | |
407 | if (!i2c_check_functionality(adapter, I2C_FUNC_SMBUS_BYTE_DATA)) | |
408 | return 0; | |
409 | ||
7408187d | 410 | client = kzalloc(sizeof(struct i2c_client), GFP_KERNEL); |
5fa1247a | 411 | if (!client) |
1da177e4 | 412 | return -ENOMEM; |
1da177e4 LT |
413 | client->addr = address; |
414 | client->adapter = adapter; | |
415 | client->driver = &i2c_driver_adv7170; | |
1da177e4 LT |
416 | if ((client->addr == I2C_ADV7170 >> 1) || |
417 | (client->addr == (I2C_ADV7170 >> 1) + 1)) { | |
418 | dname = adv7170_name; | |
419 | } else if ((client->addr == I2C_ADV7171 >> 1) || | |
420 | (client->addr == (I2C_ADV7171 >> 1) + 1)) { | |
421 | dname = adv7171_name; | |
422 | } else { | |
423 | /* We should never get here!!! */ | |
424 | kfree(client); | |
425 | return 0; | |
426 | } | |
427 | strlcpy(I2C_NAME(client), dname, sizeof(I2C_NAME(client))); | |
428 | ||
7408187d | 429 | encoder = kzalloc(sizeof(struct adv7170), GFP_KERNEL); |
1da177e4 LT |
430 | if (encoder == NULL) { |
431 | kfree(client); | |
432 | return -ENOMEM; | |
433 | } | |
1da177e4 LT |
434 | encoder->norm = VIDEO_MODE_NTSC; |
435 | encoder->input = 0; | |
436 | encoder->enable = 1; | |
437 | i2c_set_clientdata(client, encoder); | |
438 | ||
439 | i = i2c_attach_client(client); | |
440 | if (i) { | |
441 | kfree(client); | |
442 | kfree(encoder); | |
443 | return i; | |
444 | } | |
445 | ||
446 | i = adv7170_write_block(client, init_NTSC, sizeof(init_NTSC)); | |
447 | if (i >= 0) { | |
448 | i = adv7170_write(client, 0x07, TR0MODE | TR0RST); | |
449 | i = adv7170_write(client, 0x07, TR0MODE); | |
450 | i = adv7170_read(client, 0x12); | |
451 | dprintk(1, KERN_INFO "%s_attach: rev. %d at 0x%02x\n", | |
452 | I2C_NAME(client), i & 1, client->addr << 1); | |
453 | } | |
454 | if (i < 0) { | |
455 | dprintk(1, KERN_ERR "%s_attach: init error 0x%x\n", | |
456 | I2C_NAME(client), i); | |
457 | } | |
458 | ||
459 | return 0; | |
460 | } | |
461 | ||
462 | static int | |
463 | adv7170_attach_adapter (struct i2c_adapter *adapter) | |
464 | { | |
465 | dprintk(1, | |
466 | KERN_INFO | |
467 | "adv7170.c: starting probe for adapter %s (0x%x)\n", | |
468 | I2C_NAME(adapter), adapter->id); | |
469 | return i2c_probe(adapter, &addr_data, &adv7170_detect_client); | |
470 | } | |
471 | ||
472 | static int | |
473 | adv7170_detach_client (struct i2c_client *client) | |
474 | { | |
475 | struct adv7170 *encoder = i2c_get_clientdata(client); | |
476 | int err; | |
477 | ||
478 | err = i2c_detach_client(client); | |
479 | if (err) { | |
480 | return err; | |
481 | } | |
482 | ||
483 | kfree(encoder); | |
484 | kfree(client); | |
485 | ||
486 | return 0; | |
487 | } | |
488 | ||
489 | /* ----------------------------------------------------------------------- */ | |
490 | ||
491 | static struct i2c_driver i2c_driver_adv7170 = { | |
604f28e2 | 492 | .driver = { |
604f28e2 LR |
493 | .name = "adv7170", /* name */ |
494 | }, | |
1da177e4 LT |
495 | |
496 | .id = I2C_DRIVERID_ADV7170, | |
1da177e4 LT |
497 | |
498 | .attach_adapter = adv7170_attach_adapter, | |
499 | .detach_client = adv7170_detach_client, | |
500 | .command = adv7170_command, | |
501 | }; | |
502 | ||
503 | static int __init | |
504 | adv7170_init (void) | |
505 | { | |
506 | return i2c_add_driver(&i2c_driver_adv7170); | |
507 | } | |
508 | ||
509 | static void __exit | |
510 | adv7170_exit (void) | |
511 | { | |
512 | i2c_del_driver(&i2c_driver_adv7170); | |
513 | } | |
514 | ||
515 | module_init(adv7170_init); | |
516 | module_exit(adv7170_exit); |