diff options
author | Linus Torvalds <torvalds@ppc970.osdl.org> | 2005-04-16 18:20:36 -0400 |
---|---|---|
committer | Linus Torvalds <torvalds@ppc970.osdl.org> | 2005-04-16 18:20:36 -0400 |
commit | 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 (patch) | |
tree | 0bba044c4ce775e45a88a51686b5d9f90697ea9d /drivers/media/video/saa7185.c |
Linux-2.6.12-rc2v2.6.12-rc2
Initial git repository build. I'm not bothering with the full history,
even though we have it. We can create a separate "historical" git
archive of that later if we want to, and in the meantime it's about
3.2GB when imported into git - space that would just make the early
git days unnecessarily complicated, when we don't have a lot of good
infrastructure for it.
Let it rip!
Diffstat (limited to 'drivers/media/video/saa7185.c')
-rw-r--r-- | drivers/media/video/saa7185.c | 524 |
1 files changed, 524 insertions, 0 deletions
diff --git a/drivers/media/video/saa7185.c b/drivers/media/video/saa7185.c new file mode 100644 index 000000000000..5f0b224c3cb6 --- /dev/null +++ b/drivers/media/video/saa7185.c | |||
@@ -0,0 +1,524 @@ | |||
1 | /* | ||
2 | * saa7185 - Philips SAA7185B video encoder driver version 0.0.3 | ||
3 | * | ||
4 | * Copyright (C) 1998 Dave Perks <dperks@ibm.net> | ||
5 | * | ||
6 | * Slight changes for video timing and attachment output by | ||
7 | * Wolfgang Scherr <scherr@net4you.net> | ||
8 | * | ||
9 | * Changes by Ronald Bultje <rbultje@ronald.bitfreak.net> | ||
10 | * - moved over to linux>=2.4.x i2c protocol (1/1/2003) | ||
11 | * | ||
12 | * This program is free software; you can redistribute it and/or modify | ||
13 | * it under the terms of the GNU General Public License as published by | ||
14 | * the Free Software Foundation; either version 2 of the License, or | ||
15 | * (at your option) any later version. | ||
16 | * | ||
17 | * This program is distributed in the hope that it will be useful, | ||
18 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | ||
19 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | ||
20 | * GNU General Public License for more details. | ||
21 | * | ||
22 | * You should have received a copy of the GNU General Public License | ||
23 | * along with this program; if not, write to the Free Software | ||
24 | * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. | ||
25 | */ | ||
26 | |||
27 | #include <linux/module.h> | ||
28 | #include <linux/init.h> | ||
29 | #include <linux/delay.h> | ||
30 | #include <linux/errno.h> | ||
31 | #include <linux/fs.h> | ||
32 | #include <linux/kernel.h> | ||
33 | #include <linux/major.h> | ||
34 | #include <linux/slab.h> | ||
35 | #include <linux/mm.h> | ||
36 | #include <linux/pci.h> | ||
37 | #include <linux/signal.h> | ||
38 | #include <asm/io.h> | ||
39 | #include <asm/pgtable.h> | ||
40 | #include <asm/page.h> | ||
41 | #include <linux/sched.h> | ||
42 | #include <asm/segment.h> | ||
43 | #include <linux/types.h> | ||
44 | |||
45 | #include <linux/videodev.h> | ||
46 | #include <asm/uaccess.h> | ||
47 | |||
48 | MODULE_DESCRIPTION("Philips SAA7185 video encoder driver"); | ||
49 | MODULE_AUTHOR("Dave Perks"); | ||
50 | MODULE_LICENSE("GPL"); | ||
51 | |||
52 | #include <linux/i2c.h> | ||
53 | #include <linux/i2c-dev.h> | ||
54 | |||
55 | #define I2C_NAME(s) (s)->name | ||
56 | |||
57 | #include <linux/video_encoder.h> | ||
58 | |||
59 | static int debug = 0; | ||
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 saa7185 { | ||
72 | unsigned char reg[128]; | ||
73 | |||
74 | int norm; | ||
75 | int enable; | ||
76 | int bright; | ||
77 | int contrast; | ||
78 | int hue; | ||
79 | int sat; | ||
80 | }; | ||
81 | |||
82 | #define I2C_SAA7185 0x88 | ||
83 | |||
84 | /* ----------------------------------------------------------------------- */ | ||
85 | |||
86 | static inline int | ||
87 | saa7185_read (struct i2c_client *client) | ||
88 | { | ||
89 | return i2c_smbus_read_byte(client); | ||
90 | } | ||
91 | |||
92 | static int | ||
93 | saa7185_write (struct i2c_client *client, | ||
94 | u8 reg, | ||
95 | u8 value) | ||
96 | { | ||
97 | struct saa7185 *encoder = i2c_get_clientdata(client); | ||
98 | |||
99 | dprintk(1, KERN_DEBUG "SAA7185: %02x set to %02x\n", reg, value); | ||
100 | encoder->reg[reg] = value; | ||
101 | return i2c_smbus_write_byte_data(client, reg, value); | ||
102 | } | ||
103 | |||
104 | static int | ||
105 | saa7185_write_block (struct i2c_client *client, | ||
106 | const u8 *data, | ||
107 | unsigned int len) | ||
108 | { | ||
109 | int ret = -1; | ||
110 | u8 reg; | ||
111 | |||
112 | /* the adv7175 has an autoincrement function, use it if | ||
113 | * the adapter understands raw I2C */ | ||
114 | if (i2c_check_functionality(client->adapter, I2C_FUNC_I2C)) { | ||
115 | /* do raw I2C, not smbus compatible */ | ||
116 | struct saa7185 *encoder = i2c_get_clientdata(client); | ||
117 | struct i2c_msg msg; | ||
118 | u8 block_data[32]; | ||
119 | |||
120 | msg.addr = client->addr; | ||
121 | msg.flags = 0; | ||
122 | while (len >= 2) { | ||
123 | msg.buf = (char *) block_data; | ||
124 | msg.len = 0; | ||
125 | block_data[msg.len++] = reg = data[0]; | ||
126 | do { | ||
127 | block_data[msg.len++] = | ||
128 | encoder->reg[reg++] = data[1]; | ||
129 | len -= 2; | ||
130 | data += 2; | ||
131 | } while (len >= 2 && data[0] == reg && | ||
132 | msg.len < 32); | ||
133 | if ((ret = i2c_transfer(client->adapter, | ||
134 | &msg, 1)) < 0) | ||
135 | break; | ||
136 | } | ||
137 | } else { | ||
138 | /* do some slow I2C emulation kind of thing */ | ||
139 | while (len >= 2) { | ||
140 | reg = *data++; | ||
141 | if ((ret = saa7185_write(client, reg, | ||
142 | *data++)) < 0) | ||
143 | break; | ||
144 | len -= 2; | ||
145 | } | ||
146 | } | ||
147 | |||
148 | return ret; | ||
149 | } | ||
150 | |||
151 | /* ----------------------------------------------------------------------- */ | ||
152 | |||
153 | static const unsigned char init_common[] = { | ||
154 | 0x3a, 0x0f, /* CBENB=0, V656=0, VY2C=1, | ||
155 | * YUV2C=1, MY2C=1, MUV2C=1 */ | ||
156 | |||
157 | 0x42, 0x6b, /* OVLY0=107 */ | ||
158 | 0x43, 0x00, /* OVLU0=0 white */ | ||
159 | 0x44, 0x00, /* OVLV0=0 */ | ||
160 | 0x45, 0x22, /* OVLY1=34 */ | ||
161 | 0x46, 0xac, /* OVLU1=172 yellow */ | ||
162 | 0x47, 0x0e, /* OVLV1=14 */ | ||
163 | 0x48, 0x03, /* OVLY2=3 */ | ||
164 | 0x49, 0x1d, /* OVLU2=29 cyan */ | ||
165 | 0x4a, 0xac, /* OVLV2=172 */ | ||
166 | 0x4b, 0xf0, /* OVLY3=240 */ | ||
167 | 0x4c, 0xc8, /* OVLU3=200 green */ | ||
168 | 0x4d, 0xb9, /* OVLV3=185 */ | ||
169 | 0x4e, 0xd4, /* OVLY4=212 */ | ||
170 | 0x4f, 0x38, /* OVLU4=56 magenta */ | ||
171 | 0x50, 0x47, /* OVLV4=71 */ | ||
172 | 0x51, 0xc1, /* OVLY5=193 */ | ||
173 | 0x52, 0xe3, /* OVLU5=227 red */ | ||
174 | 0x53, 0x54, /* OVLV5=84 */ | ||
175 | 0x54, 0xa3, /* OVLY6=163 */ | ||
176 | 0x55, 0x54, /* OVLU6=84 blue */ | ||
177 | 0x56, 0xf2, /* OVLV6=242 */ | ||
178 | 0x57, 0x90, /* OVLY7=144 */ | ||
179 | 0x58, 0x00, /* OVLU7=0 black */ | ||
180 | 0x59, 0x00, /* OVLV7=0 */ | ||
181 | |||
182 | 0x5a, 0x00, /* CHPS=0 */ | ||
183 | 0x5b, 0x76, /* GAINU=118 */ | ||
184 | 0x5c, 0xa5, /* GAINV=165 */ | ||
185 | 0x5d, 0x3c, /* BLCKL=60 */ | ||
186 | 0x5e, 0x3a, /* BLNNL=58 */ | ||
187 | 0x5f, 0x3a, /* CCRS=0, BLNVB=58 */ | ||
188 | 0x60, 0x00, /* NULL */ | ||
189 | |||
190 | /* 0x61 - 0x66 set according to norm */ | ||
191 | |||
192 | 0x67, 0x00, /* 0 : caption 1st byte odd field */ | ||
193 | 0x68, 0x00, /* 0 : caption 2nd byte odd field */ | ||
194 | 0x69, 0x00, /* 0 : caption 1st byte even field */ | ||
195 | 0x6a, 0x00, /* 0 : caption 2nd byte even field */ | ||
196 | |||
197 | 0x6b, 0x91, /* MODIN=2, PCREF=0, SCCLN=17 */ | ||
198 | 0x6c, 0x20, /* SRCV1=0, TRCV2=1, ORCV1=0, PRCV1=0, | ||
199 | * CBLF=0, ORCV2=0, PRCV2=0 */ | ||
200 | 0x6d, 0x00, /* SRCM1=0, CCEN=0 */ | ||
201 | |||
202 | 0x6e, 0x0e, /* HTRIG=0x005, approx. centered, at | ||
203 | * least for PAL */ | ||
204 | 0x6f, 0x00, /* HTRIG upper bits */ | ||
205 | 0x70, 0x20, /* PHRES=0, SBLN=1, VTRIG=0 */ | ||
206 | |||
207 | /* The following should not be needed */ | ||
208 | |||
209 | 0x71, 0x15, /* BMRQ=0x115 */ | ||
210 | 0x72, 0x90, /* EMRQ=0x690 */ | ||
211 | 0x73, 0x61, /* EMRQ=0x690, BMRQ=0x115 */ | ||
212 | 0x74, 0x00, /* NULL */ | ||
213 | 0x75, 0x00, /* NULL */ | ||
214 | 0x76, 0x00, /* NULL */ | ||
215 | 0x77, 0x15, /* BRCV=0x115 */ | ||
216 | 0x78, 0x90, /* ERCV=0x690 */ | ||
217 | 0x79, 0x61, /* ERCV=0x690, BRCV=0x115 */ | ||
218 | |||
219 | /* Field length controls */ | ||
220 | |||
221 | 0x7a, 0x70, /* FLC=0 */ | ||
222 | |||
223 | /* The following should not be needed if SBLN = 1 */ | ||
224 | |||
225 | 0x7b, 0x16, /* FAL=22 */ | ||
226 | 0x7c, 0x35, /* LAL=244 */ | ||
227 | 0x7d, 0x20, /* LAL=244, FAL=22 */ | ||
228 | }; | ||
229 | |||
230 | static const unsigned char init_pal[] = { | ||
231 | 0x61, 0x1e, /* FISE=0, PAL=1, SCBW=1, RTCE=1, | ||
232 | * YGS=1, INPI=0, DOWN=0 */ | ||
233 | 0x62, 0xc8, /* DECTYP=1, BSTA=72 */ | ||
234 | 0x63, 0xcb, /* FSC0 */ | ||
235 | 0x64, 0x8a, /* FSC1 */ | ||
236 | 0x65, 0x09, /* FSC2 */ | ||
237 | 0x66, 0x2a, /* FSC3 */ | ||
238 | }; | ||
239 | |||
240 | static const unsigned char init_ntsc[] = { | ||
241 | 0x61, 0x1d, /* FISE=1, PAL=0, SCBW=1, RTCE=1, | ||
242 | * YGS=1, INPI=0, DOWN=0 */ | ||
243 | 0x62, 0xe6, /* DECTYP=1, BSTA=102 */ | ||
244 | 0x63, 0x1f, /* FSC0 */ | ||
245 | 0x64, 0x7c, /* FSC1 */ | ||
246 | 0x65, 0xf0, /* FSC2 */ | ||
247 | 0x66, 0x21, /* FSC3 */ | ||
248 | }; | ||
249 | |||
250 | static int | ||
251 | saa7185_command (struct i2c_client *client, | ||
252 | unsigned int cmd, | ||
253 | void *arg) | ||
254 | { | ||
255 | struct saa7185 *encoder = i2c_get_clientdata(client); | ||
256 | |||
257 | switch (cmd) { | ||
258 | |||
259 | case 0: | ||
260 | saa7185_write_block(client, init_common, | ||
261 | sizeof(init_common)); | ||
262 | switch (encoder->norm) { | ||
263 | |||
264 | case VIDEO_MODE_NTSC: | ||
265 | saa7185_write_block(client, init_ntsc, | ||
266 | sizeof(init_ntsc)); | ||
267 | break; | ||
268 | |||
269 | case VIDEO_MODE_PAL: | ||
270 | saa7185_write_block(client, init_pal, | ||
271 | sizeof(init_pal)); | ||
272 | break; | ||
273 | } | ||
274 | |||
275 | break; | ||
276 | |||
277 | case ENCODER_GET_CAPABILITIES: | ||
278 | { | ||
279 | struct video_encoder_capability *cap = arg; | ||
280 | |||
281 | cap->flags = | ||
282 | VIDEO_ENCODER_PAL | VIDEO_ENCODER_NTSC | | ||
283 | VIDEO_ENCODER_SECAM | VIDEO_ENCODER_CCIR; | ||
284 | cap->inputs = 1; | ||
285 | cap->outputs = 1; | ||
286 | } | ||
287 | break; | ||
288 | |||
289 | case ENCODER_SET_NORM: | ||
290 | { | ||
291 | int *iarg = arg; | ||
292 | |||
293 | //saa7185_write_block(client, init_common, sizeof(init_common)); | ||
294 | |||
295 | switch (*iarg) { | ||
296 | |||
297 | case VIDEO_MODE_NTSC: | ||
298 | saa7185_write_block(client, init_ntsc, | ||
299 | sizeof(init_ntsc)); | ||
300 | break; | ||
301 | |||
302 | case VIDEO_MODE_PAL: | ||
303 | saa7185_write_block(client, init_pal, | ||
304 | sizeof(init_pal)); | ||
305 | break; | ||
306 | |||
307 | case VIDEO_MODE_SECAM: | ||
308 | default: | ||
309 | return -EINVAL; | ||
310 | |||
311 | } | ||
312 | encoder->norm = *iarg; | ||
313 | } | ||
314 | break; | ||
315 | |||
316 | case ENCODER_SET_INPUT: | ||
317 | { | ||
318 | int *iarg = arg; | ||
319 | |||
320 | /* RJ: *iarg = 0: input is from SA7111 | ||
321 | *iarg = 1: input is from ZR36060 */ | ||
322 | |||
323 | switch (*iarg) { | ||
324 | |||
325 | case 0: | ||
326 | /* Switch RTCE to 1 */ | ||
327 | saa7185_write(client, 0x61, | ||
328 | (encoder->reg[0x61] & 0xf7) | 0x08); | ||
329 | saa7185_write(client, 0x6e, 0x01); | ||
330 | break; | ||
331 | |||
332 | case 1: | ||
333 | /* Switch RTCE to 0 */ | ||
334 | saa7185_write(client, 0x61, | ||
335 | (encoder->reg[0x61] & 0xf7) | 0x00); | ||
336 | /* SW: a slight sync problem... */ | ||
337 | saa7185_write(client, 0x6e, 0x00); | ||
338 | break; | ||
339 | |||
340 | default: | ||
341 | return -EINVAL; | ||
342 | |||
343 | } | ||
344 | } | ||
345 | break; | ||
346 | |||
347 | case ENCODER_SET_OUTPUT: | ||
348 | { | ||
349 | int *iarg = arg; | ||
350 | |||
351 | /* not much choice of outputs */ | ||
352 | if (*iarg != 0) { | ||
353 | return -EINVAL; | ||
354 | } | ||
355 | } | ||
356 | break; | ||
357 | |||
358 | case ENCODER_ENABLE_OUTPUT: | ||
359 | { | ||
360 | int *iarg = arg; | ||
361 | |||
362 | encoder->enable = !!*iarg; | ||
363 | saa7185_write(client, 0x61, | ||
364 | (encoder->reg[0x61] & 0xbf) | | ||
365 | (encoder->enable ? 0x00 : 0x40)); | ||
366 | } | ||
367 | break; | ||
368 | |||
369 | default: | ||
370 | return -EINVAL; | ||
371 | } | ||
372 | |||
373 | return 0; | ||
374 | } | ||
375 | |||
376 | /* ----------------------------------------------------------------------- */ | ||
377 | |||
378 | /* | ||
379 | * Generic i2c probe | ||
380 | * concerning the addresses: i2c wants 7 bit (without the r/w bit), so '>>1' | ||
381 | */ | ||
382 | static unsigned short normal_i2c[] = { I2C_SAA7185 >> 1, I2C_CLIENT_END }; | ||
383 | static unsigned short normal_i2c_range[] = { I2C_CLIENT_END }; | ||
384 | |||
385 | static unsigned short probe[2] = { I2C_CLIENT_END, I2C_CLIENT_END }; | ||
386 | static unsigned short probe_range[2] = { I2C_CLIENT_END, I2C_CLIENT_END }; | ||
387 | static unsigned short ignore[2] = { I2C_CLIENT_END, I2C_CLIENT_END }; | ||
388 | static unsigned short ignore_range[2] = { I2C_CLIENT_END, I2C_CLIENT_END }; | ||
389 | static unsigned short force[2] = { I2C_CLIENT_END , I2C_CLIENT_END }; | ||
390 | |||
391 | static struct i2c_client_address_data addr_data = { | ||
392 | .normal_i2c = normal_i2c, | ||
393 | .normal_i2c_range = normal_i2c_range, | ||
394 | .probe = probe, | ||
395 | .probe_range = probe_range, | ||
396 | .ignore = ignore, | ||
397 | .ignore_range = ignore_range, | ||
398 | .force = force | ||
399 | }; | ||
400 | |||
401 | static struct i2c_driver i2c_driver_saa7185; | ||
402 | |||
403 | static int | ||
404 | saa7185_detect_client (struct i2c_adapter *adapter, | ||
405 | int address, | ||
406 | int kind) | ||
407 | { | ||
408 | int i; | ||
409 | struct i2c_client *client; | ||
410 | struct saa7185 *encoder; | ||
411 | |||
412 | dprintk(1, | ||
413 | KERN_INFO | ||
414 | "saa7185.c: detecting saa7185 client on address 0x%x\n", | ||
415 | address << 1); | ||
416 | |||
417 | /* Check if the adapter supports the needed features */ | ||
418 | if (!i2c_check_functionality(adapter, I2C_FUNC_SMBUS_BYTE_DATA)) | ||
419 | return 0; | ||
420 | |||
421 | client = kmalloc(sizeof(struct i2c_client), GFP_KERNEL); | ||
422 | if (client == 0) | ||
423 | return -ENOMEM; | ||
424 | memset(client, 0, sizeof(struct i2c_client)); | ||
425 | client->addr = address; | ||
426 | client->adapter = adapter; | ||
427 | client->driver = &i2c_driver_saa7185; | ||
428 | client->flags = I2C_CLIENT_ALLOW_USE; | ||
429 | strlcpy(I2C_NAME(client), "saa7185", sizeof(I2C_NAME(client))); | ||
430 | |||
431 | encoder = kmalloc(sizeof(struct saa7185), GFP_KERNEL); | ||
432 | if (encoder == NULL) { | ||
433 | kfree(client); | ||
434 | return -ENOMEM; | ||
435 | } | ||
436 | memset(encoder, 0, sizeof(struct saa7185)); | ||
437 | encoder->norm = VIDEO_MODE_NTSC; | ||
438 | encoder->enable = 1; | ||
439 | i2c_set_clientdata(client, encoder); | ||
440 | |||
441 | i = i2c_attach_client(client); | ||
442 | if (i) { | ||
443 | kfree(client); | ||
444 | kfree(encoder); | ||
445 | return i; | ||
446 | } | ||
447 | |||
448 | i = saa7185_write_block(client, init_common, sizeof(init_common)); | ||
449 | if (i >= 0) { | ||
450 | i = saa7185_write_block(client, init_ntsc, | ||
451 | sizeof(init_ntsc)); | ||
452 | } | ||
453 | if (i < 0) { | ||
454 | dprintk(1, KERN_ERR "%s_attach: init error %d\n", | ||
455 | I2C_NAME(client), i); | ||
456 | } else { | ||
457 | dprintk(1, | ||
458 | KERN_INFO | ||
459 | "%s_attach: chip version %d at address 0x%x\n", | ||
460 | I2C_NAME(client), saa7185_read(client) >> 5, | ||
461 | client->addr << 1); | ||
462 | } | ||
463 | |||
464 | return 0; | ||
465 | } | ||
466 | |||
467 | static int | ||
468 | saa7185_attach_adapter (struct i2c_adapter *adapter) | ||
469 | { | ||
470 | dprintk(1, | ||
471 | KERN_INFO | ||
472 | "saa7185.c: starting probe for adapter %s (0x%x)\n", | ||
473 | I2C_NAME(adapter), adapter->id); | ||
474 | return i2c_probe(adapter, &addr_data, &saa7185_detect_client); | ||
475 | } | ||
476 | |||
477 | static int | ||
478 | saa7185_detach_client (struct i2c_client *client) | ||
479 | { | ||
480 | struct saa7185 *encoder = i2c_get_clientdata(client); | ||
481 | int err; | ||
482 | |||
483 | err = i2c_detach_client(client); | ||
484 | if (err) { | ||
485 | return err; | ||
486 | } | ||
487 | |||
488 | saa7185_write(client, 0x61, (encoder->reg[0x61]) | 0x40); /* SW: output off is active */ | ||
489 | //saa7185_write(client, 0x3a, (encoder->reg[0x3a]) | 0x80); /* SW: color bar */ | ||
490 | |||
491 | kfree(encoder); | ||
492 | kfree(client); | ||
493 | |||
494 | return 0; | ||
495 | } | ||
496 | |||
497 | /* ----------------------------------------------------------------------- */ | ||
498 | |||
499 | static struct i2c_driver i2c_driver_saa7185 = { | ||
500 | .owner = THIS_MODULE, | ||
501 | .name = "saa7185", /* name */ | ||
502 | |||
503 | .id = I2C_DRIVERID_SAA7185B, | ||
504 | .flags = I2C_DF_NOTIFY, | ||
505 | |||
506 | .attach_adapter = saa7185_attach_adapter, | ||
507 | .detach_client = saa7185_detach_client, | ||
508 | .command = saa7185_command, | ||
509 | }; | ||
510 | |||
511 | static int __init | ||
512 | saa7185_init (void) | ||
513 | { | ||
514 | return i2c_add_driver(&i2c_driver_saa7185); | ||
515 | } | ||
516 | |||
517 | static void __exit | ||
518 | saa7185_exit (void) | ||
519 | { | ||
520 | i2c_del_driver(&i2c_driver_saa7185); | ||
521 | } | ||
522 | |||
523 | module_init(saa7185_init); | ||
524 | module_exit(saa7185_exit); | ||