1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51#include <linux/kernel.h>
52#include <linux/module.h>
53#include <linux/slab.h>
54#include <linux/i2c.h>
55#include <linux/videodev2.h>
56#include <media/v4l2-device.h>
57#include <media/v4l2-chip-ident.h>
58#include <media/v4l2-i2c-drv.h>
59#include <media/saa7127.h>
60
61static int debug;
62static int test_image;
63
64MODULE_DESCRIPTION("Philips SAA7127/9 video encoder driver");
65MODULE_AUTHOR("Kevin Thayer, Chris Kennedy, Hans Verkuil");
66MODULE_LICENSE("GPL");
67module_param(debug, int, 0644);
68module_param(test_image, int, 0644);
69MODULE_PARM_DESC(debug, "debug level (0-2)");
70MODULE_PARM_DESC(test_image, "test_image (0-1)");
71
72
73
74
75
76
77#define SAA7127_REG_STATUS 0x00
78#define SAA7127_REG_WIDESCREEN_CONFIG 0x26
79#define SAA7127_REG_WIDESCREEN_ENABLE 0x27
80#define SAA7127_REG_BURST_START 0x28
81#define SAA7127_REG_BURST_END 0x29
82#define SAA7127_REG_COPYGEN_0 0x2a
83#define SAA7127_REG_COPYGEN_1 0x2b
84#define SAA7127_REG_COPYGEN_2 0x2c
85#define SAA7127_REG_OUTPUT_PORT_CONTROL 0x2d
86#define SAA7127_REG_GAIN_LUMINANCE_RGB 0x38
87#define SAA7127_REG_GAIN_COLORDIFF_RGB 0x39
88#define SAA7127_REG_INPUT_PORT_CONTROL_1 0x3a
89#define SAA7129_REG_FADE_KEY_COL2 0x4f
90#define SAA7127_REG_CHROMA_PHASE 0x5a
91#define SAA7127_REG_GAINU 0x5b
92#define SAA7127_REG_GAINV 0x5c
93#define SAA7127_REG_BLACK_LEVEL 0x5d
94#define SAA7127_REG_BLANKING_LEVEL 0x5e
95#define SAA7127_REG_VBI_BLANKING 0x5f
96#define SAA7127_REG_DAC_CONTROL 0x61
97#define SAA7127_REG_BURST_AMP 0x62
98#define SAA7127_REG_SUBC3 0x63
99#define SAA7127_REG_SUBC2 0x64
100#define SAA7127_REG_SUBC1 0x65
101#define SAA7127_REG_SUBC0 0x66
102#define SAA7127_REG_LINE_21_ODD_0 0x67
103#define SAA7127_REG_LINE_21_ODD_1 0x68
104#define SAA7127_REG_LINE_21_EVEN_0 0x69
105#define SAA7127_REG_LINE_21_EVEN_1 0x6a
106#define SAA7127_REG_RCV_PORT_CONTROL 0x6b
107#define SAA7127_REG_VTRIG 0x6c
108#define SAA7127_REG_HTRIG_HI 0x6d
109#define SAA7127_REG_MULTI 0x6e
110#define SAA7127_REG_CLOSED_CAPTION 0x6f
111#define SAA7127_REG_RCV2_OUTPUT_START 0x70
112#define SAA7127_REG_RCV2_OUTPUT_END 0x71
113#define SAA7127_REG_RCV2_OUTPUT_MSBS 0x72
114#define SAA7127_REG_TTX_REQUEST_H_START 0x73
115#define SAA7127_REG_TTX_REQUEST_H_DELAY_LENGTH 0x74
116#define SAA7127_REG_CSYNC_ADVANCE_VSYNC_SHIFT 0x75
117#define SAA7127_REG_TTX_ODD_REQ_VERT_START 0x76
118#define SAA7127_REG_TTX_ODD_REQ_VERT_END 0x77
119#define SAA7127_REG_TTX_EVEN_REQ_VERT_START 0x78
120#define SAA7127_REG_TTX_EVEN_REQ_VERT_END 0x79
121#define SAA7127_REG_FIRST_ACTIVE 0x7a
122#define SAA7127_REG_LAST_ACTIVE 0x7b
123#define SAA7127_REG_MSB_VERTICAL 0x7c
124#define SAA7127_REG_DISABLE_TTX_LINE_LO_0 0x7e
125#define SAA7127_REG_DISABLE_TTX_LINE_LO_1 0x7f
126
127
128
129
130
131
132
133
134
135struct i2c_reg_value {
136 unsigned char reg;
137 unsigned char value;
138};
139
140static const struct i2c_reg_value saa7129_init_config_extra[] = {
141 { SAA7127_REG_OUTPUT_PORT_CONTROL, 0x38 },
142 { SAA7127_REG_VTRIG, 0xfa },
143 { 0, 0 }
144};
145
146static const struct i2c_reg_value saa7127_init_config_common[] = {
147 { SAA7127_REG_WIDESCREEN_CONFIG, 0x0d },
148 { SAA7127_REG_WIDESCREEN_ENABLE, 0x00 },
149 { SAA7127_REG_COPYGEN_0, 0x77 },
150 { SAA7127_REG_COPYGEN_1, 0x41 },
151 { SAA7127_REG_COPYGEN_2, 0x00 },
152 { SAA7127_REG_OUTPUT_PORT_CONTROL, 0xbf },
153 { SAA7127_REG_GAIN_LUMINANCE_RGB, 0x00 },
154 { SAA7127_REG_GAIN_COLORDIFF_RGB, 0x00 },
155 { SAA7127_REG_INPUT_PORT_CONTROL_1, 0x80 },
156 { SAA7127_REG_LINE_21_ODD_0, 0x77 },
157 { SAA7127_REG_LINE_21_ODD_1, 0x41 },
158 { SAA7127_REG_LINE_21_EVEN_0, 0x88 },
159 { SAA7127_REG_LINE_21_EVEN_1, 0x41 },
160 { SAA7127_REG_RCV_PORT_CONTROL, 0x12 },
161 { SAA7127_REG_VTRIG, 0xf9 },
162 { SAA7127_REG_HTRIG_HI, 0x00 },
163 { SAA7127_REG_RCV2_OUTPUT_START, 0x41 },
164 { SAA7127_REG_RCV2_OUTPUT_END, 0xc3 },
165 { SAA7127_REG_RCV2_OUTPUT_MSBS, 0x00 },
166 { SAA7127_REG_TTX_REQUEST_H_START, 0x3e },
167 { SAA7127_REG_TTX_REQUEST_H_DELAY_LENGTH, 0xb8 },
168 { SAA7127_REG_CSYNC_ADVANCE_VSYNC_SHIFT, 0x03 },
169 { SAA7127_REG_TTX_ODD_REQ_VERT_START, 0x15 },
170 { SAA7127_REG_TTX_ODD_REQ_VERT_END, 0x16 },
171 { SAA7127_REG_TTX_EVEN_REQ_VERT_START, 0x15 },
172 { SAA7127_REG_TTX_EVEN_REQ_VERT_END, 0x16 },
173 { SAA7127_REG_FIRST_ACTIVE, 0x1a },
174 { SAA7127_REG_LAST_ACTIVE, 0x01 },
175 { SAA7127_REG_MSB_VERTICAL, 0xc0 },
176 { SAA7127_REG_DISABLE_TTX_LINE_LO_0, 0x00 },
177 { SAA7127_REG_DISABLE_TTX_LINE_LO_1, 0x00 },
178 { 0, 0 }
179};
180
181#define SAA7127_60HZ_DAC_CONTROL 0x15
182static const struct i2c_reg_value saa7127_init_config_60hz[] = {
183 { SAA7127_REG_BURST_START, 0x19 },
184
185 { SAA7127_REG_BURST_END, 0x1d },
186 { SAA7127_REG_CHROMA_PHASE, 0xa3 },
187 { SAA7127_REG_GAINU, 0x98 },
188 { SAA7127_REG_GAINV, 0xd3 },
189 { SAA7127_REG_BLACK_LEVEL, 0x39 },
190 { SAA7127_REG_BLANKING_LEVEL, 0x2e },
191 { SAA7127_REG_VBI_BLANKING, 0x2e },
192 { SAA7127_REG_DAC_CONTROL, 0x15 },
193 { SAA7127_REG_BURST_AMP, 0x4d },
194 { SAA7127_REG_SUBC3, 0x1f },
195 { SAA7127_REG_SUBC2, 0x7c },
196 { SAA7127_REG_SUBC1, 0xf0 },
197 { SAA7127_REG_SUBC0, 0x21 },
198 { SAA7127_REG_MULTI, 0x90 },
199 { SAA7127_REG_CLOSED_CAPTION, 0x11 },
200 { 0, 0 }
201};
202
203#define SAA7127_50HZ_DAC_CONTROL 0x02
204static struct i2c_reg_value saa7127_init_config_50hz[] = {
205 { SAA7127_REG_BURST_START, 0x21 },
206
207 { SAA7127_REG_BURST_END, 0x1d },
208 { SAA7127_REG_CHROMA_PHASE, 0x3f },
209 { SAA7127_REG_GAINU, 0x7d },
210 { SAA7127_REG_GAINV, 0xaf },
211 { SAA7127_REG_BLACK_LEVEL, 0x33 },
212 { SAA7127_REG_BLANKING_LEVEL, 0x35 },
213 { SAA7127_REG_VBI_BLANKING, 0x35 },
214 { SAA7127_REG_DAC_CONTROL, 0x02 },
215 { SAA7127_REG_BURST_AMP, 0x2f },
216 { SAA7127_REG_SUBC3, 0xcb },
217 { SAA7127_REG_SUBC2, 0x8a },
218 { SAA7127_REG_SUBC1, 0x09 },
219 { SAA7127_REG_SUBC0, 0x2a },
220 { SAA7127_REG_MULTI, 0xa0 },
221 { SAA7127_REG_CLOSED_CAPTION, 0x00 },
222 { 0, 0 }
223};
224
225
226
227
228
229
230
231
232
233struct saa7127_state {
234 struct v4l2_subdev sd;
235 v4l2_std_id std;
236 u32 ident;
237 enum saa7127_input_type input_type;
238 enum saa7127_output_type output_type;
239 int video_enable;
240 int wss_enable;
241 u16 wss_mode;
242 int cc_enable;
243 u16 cc_data;
244 int xds_enable;
245 u16 xds_data;
246 int vps_enable;
247 u8 vps_data[5];
248 u8 reg_2d;
249 u8 reg_3a;
250 u8 reg_3a_cb;
251 u8 reg_61;
252};
253
254static inline struct saa7127_state *to_state(struct v4l2_subdev *sd)
255{
256 return container_of(sd, struct saa7127_state, sd);
257}
258
259static const char * const output_strs[] =
260{
261 "S-Video + Composite",
262 "Composite",
263 "S-Video",
264 "RGB",
265 "YUV C",
266 "YUV V"
267};
268
269static const char * const wss_strs[] = {
270 "invalid",
271 "letterbox 14:9 center",
272 "letterbox 14:9 top",
273 "invalid",
274 "letterbox 16:9 top",
275 "invalid",
276 "invalid",
277 "16:9 full format anamorphic",
278 "4:3 full format",
279 "invalid",
280 "invalid",
281 "letterbox 16:9 center",
282 "invalid",
283 "letterbox >16:9 center",
284 "14:9 full format center",
285 "invalid",
286};
287
288
289
290static int saa7127_read(struct v4l2_subdev *sd, u8 reg)
291{
292 struct i2c_client *client = v4l2_get_subdevdata(sd);
293
294 return i2c_smbus_read_byte_data(client, reg);
295}
296
297
298
299static int saa7127_write(struct v4l2_subdev *sd, u8 reg, u8 val)
300{
301 struct i2c_client *client = v4l2_get_subdevdata(sd);
302 int i;
303
304 for (i = 0; i < 3; i++) {
305 if (i2c_smbus_write_byte_data(client, reg, val) == 0)
306 return 0;
307 }
308 v4l2_err(sd, "I2C Write Problem\n");
309 return -1;
310}
311
312
313
314static int saa7127_write_inittab(struct v4l2_subdev *sd,
315 const struct i2c_reg_value *regs)
316{
317 while (regs->reg != 0) {
318 saa7127_write(sd, regs->reg, regs->value);
319 regs++;
320 }
321 return 0;
322}
323
324
325
326static int saa7127_set_vps(struct v4l2_subdev *sd, const struct v4l2_sliced_vbi_data *data)
327{
328 struct saa7127_state *state = to_state(sd);
329 int enable = (data->line != 0);
330
331 if (enable && (data->field != 0 || data->line != 16))
332 return -EINVAL;
333 if (state->vps_enable != enable) {
334 v4l2_dbg(1, debug, sd, "Turn VPS Signal %s\n", enable ? "on" : "off");
335 saa7127_write(sd, 0x54, enable << 7);
336 state->vps_enable = enable;
337 }
338 if (!enable)
339 return 0;
340
341 state->vps_data[0] = data->data[2];
342 state->vps_data[1] = data->data[8];
343 state->vps_data[2] = data->data[9];
344 state->vps_data[3] = data->data[10];
345 state->vps_data[4] = data->data[11];
346 v4l2_dbg(1, debug, sd, "Set VPS data %02x %02x %02x %02x %02x\n",
347 state->vps_data[0], state->vps_data[1],
348 state->vps_data[2], state->vps_data[3],
349 state->vps_data[4]);
350 saa7127_write(sd, 0x55, state->vps_data[0]);
351 saa7127_write(sd, 0x56, state->vps_data[1]);
352 saa7127_write(sd, 0x57, state->vps_data[2]);
353 saa7127_write(sd, 0x58, state->vps_data[3]);
354 saa7127_write(sd, 0x59, state->vps_data[4]);
355 return 0;
356}
357
358
359
360static int saa7127_set_cc(struct v4l2_subdev *sd, const struct v4l2_sliced_vbi_data *data)
361{
362 struct saa7127_state *state = to_state(sd);
363 u16 cc = data->data[1] << 8 | data->data[0];
364 int enable = (data->line != 0);
365
366 if (enable && (data->field != 0 || data->line != 21))
367 return -EINVAL;
368 if (state->cc_enable != enable) {
369 v4l2_dbg(1, debug, sd,
370 "Turn CC %s\n", enable ? "on" : "off");
371 saa7127_write(sd, SAA7127_REG_CLOSED_CAPTION,
372 (state->xds_enable << 7) | (enable << 6) | 0x11);
373 state->cc_enable = enable;
374 }
375 if (!enable)
376 return 0;
377
378 v4l2_dbg(2, debug, sd, "CC data: %04x\n", cc);
379 saa7127_write(sd, SAA7127_REG_LINE_21_ODD_0, cc & 0xff);
380 saa7127_write(sd, SAA7127_REG_LINE_21_ODD_1, cc >> 8);
381 state->cc_data = cc;
382 return 0;
383}
384
385
386
387static int saa7127_set_xds(struct v4l2_subdev *sd, const struct v4l2_sliced_vbi_data *data)
388{
389 struct saa7127_state *state = to_state(sd);
390 u16 xds = data->data[1] << 8 | data->data[0];
391 int enable = (data->line != 0);
392
393 if (enable && (data->field != 1 || data->line != 21))
394 return -EINVAL;
395 if (state->xds_enable != enable) {
396 v4l2_dbg(1, debug, sd, "Turn XDS %s\n", enable ? "on" : "off");
397 saa7127_write(sd, SAA7127_REG_CLOSED_CAPTION,
398 (enable << 7) | (state->cc_enable << 6) | 0x11);
399 state->xds_enable = enable;
400 }
401 if (!enable)
402 return 0;
403
404 v4l2_dbg(2, debug, sd, "XDS data: %04x\n", xds);
405 saa7127_write(sd, SAA7127_REG_LINE_21_EVEN_0, xds & 0xff);
406 saa7127_write(sd, SAA7127_REG_LINE_21_EVEN_1, xds >> 8);
407 state->xds_data = xds;
408 return 0;
409}
410
411
412
413static int saa7127_set_wss(struct v4l2_subdev *sd, const struct v4l2_sliced_vbi_data *data)
414{
415 struct saa7127_state *state = to_state(sd);
416 int enable = (data->line != 0);
417
418 if (enable && (data->field != 0 || data->line != 23))
419 return -EINVAL;
420 if (state->wss_enable != enable) {
421 v4l2_dbg(1, debug, sd, "Turn WSS %s\n", enable ? "on" : "off");
422 saa7127_write(sd, 0x27, enable << 7);
423 state->wss_enable = enable;
424 }
425 if (!enable)
426 return 0;
427
428 saa7127_write(sd, 0x26, data->data[0]);
429 saa7127_write(sd, 0x27, 0x80 | (data->data[1] & 0x3f));
430 v4l2_dbg(1, debug, sd,
431 "WSS mode: %s\n", wss_strs[data->data[0] & 0xf]);
432 state->wss_mode = (data->data[1] & 0x3f) << 8 | data->data[0];
433 return 0;
434}
435
436
437
438static int saa7127_set_video_enable(struct v4l2_subdev *sd, int enable)
439{
440 struct saa7127_state *state = to_state(sd);
441
442 if (enable) {
443 v4l2_dbg(1, debug, sd, "Enable Video Output\n");
444 saa7127_write(sd, 0x2d, state->reg_2d);
445 saa7127_write(sd, 0x61, state->reg_61);
446 } else {
447 v4l2_dbg(1, debug, sd, "Disable Video Output\n");
448 saa7127_write(sd, 0x2d, (state->reg_2d & 0xf0));
449 saa7127_write(sd, 0x61, (state->reg_61 | 0xc0));
450 }
451 state->video_enable = enable;
452 return 0;
453}
454
455
456
457static int saa7127_set_std(struct v4l2_subdev *sd, v4l2_std_id std)
458{
459 struct saa7127_state *state = to_state(sd);
460 const struct i2c_reg_value *inittab;
461
462 if (std & V4L2_STD_525_60) {
463 v4l2_dbg(1, debug, sd, "Selecting 60 Hz video Standard\n");
464 inittab = saa7127_init_config_60hz;
465 state->reg_61 = SAA7127_60HZ_DAC_CONTROL;
466 } else {
467 v4l2_dbg(1, debug, sd, "Selecting 50 Hz video Standard\n");
468 inittab = saa7127_init_config_50hz;
469 state->reg_61 = SAA7127_50HZ_DAC_CONTROL;
470 }
471
472
473 saa7127_write_inittab(sd, inittab);
474 state->std = std;
475 return 0;
476}
477
478
479
480static int saa7127_set_output_type(struct v4l2_subdev *sd, int output)
481{
482 struct saa7127_state *state = to_state(sd);
483
484 switch (output) {
485 case SAA7127_OUTPUT_TYPE_RGB:
486 state->reg_2d = 0x0f;
487 state->reg_3a = 0x13;
488 break;
489
490 case SAA7127_OUTPUT_TYPE_COMPOSITE:
491 if (state->ident == V4L2_IDENT_SAA7129)
492 state->reg_2d = 0x20;
493 else
494 state->reg_2d = 0x08;
495 state->reg_3a = 0x13;
496 break;
497
498 case SAA7127_OUTPUT_TYPE_SVIDEO:
499 if (state->ident == V4L2_IDENT_SAA7129)
500 state->reg_2d = 0x18;
501 else
502 state->reg_2d = 0xff;
503 state->reg_3a = 0x13;
504 break;
505
506 case SAA7127_OUTPUT_TYPE_YUV_V:
507 state->reg_2d = 0x4f;
508 state->reg_3a = 0x0b;
509 break;
510
511 case SAA7127_OUTPUT_TYPE_YUV_C:
512 state->reg_2d = 0x0f;
513 state->reg_3a = 0x0b;
514 break;
515
516 case SAA7127_OUTPUT_TYPE_BOTH:
517 if (state->ident == V4L2_IDENT_SAA7129)
518 state->reg_2d = 0x38;
519 else
520 state->reg_2d = 0xbf;
521 state->reg_3a = 0x13;
522 break;
523
524 default:
525 return -EINVAL;
526 }
527 v4l2_dbg(1, debug, sd,
528 "Selecting %s output type\n", output_strs[output]);
529
530
531 saa7127_write(sd, 0x2d, state->reg_2d);
532 saa7127_write(sd, 0x3a, state->reg_3a | state->reg_3a_cb);
533 state->output_type = output;
534 return 0;
535}
536
537
538
539static int saa7127_set_input_type(struct v4l2_subdev *sd, int input)
540{
541 struct saa7127_state *state = to_state(sd);
542
543 switch (input) {
544 case SAA7127_INPUT_TYPE_NORMAL:
545 v4l2_dbg(1, debug, sd, "Selecting Normal Encoder Input\n");
546 state->reg_3a_cb = 0;
547 break;
548
549 case SAA7127_INPUT_TYPE_TEST_IMAGE:
550 v4l2_dbg(1, debug, sd, "Selecting Color Bar generator\n");
551 state->reg_3a_cb = 0x80;
552 break;
553
554 default:
555 return -EINVAL;
556 }
557 saa7127_write(sd, 0x3a, state->reg_3a | state->reg_3a_cb);
558 state->input_type = input;
559 return 0;
560}
561
562
563
564static int saa7127_s_std_output(struct v4l2_subdev *sd, v4l2_std_id std)
565{
566 struct saa7127_state *state = to_state(sd);
567
568 if (state->std == std)
569 return 0;
570 return saa7127_set_std(sd, std);
571}
572
573static int saa7127_s_routing(struct v4l2_subdev *sd,
574 u32 input, u32 output, u32 config)
575{
576 struct saa7127_state *state = to_state(sd);
577 int rc = 0;
578
579 if (state->input_type != input)
580 rc = saa7127_set_input_type(sd, input);
581 if (rc == 0 && state->output_type != output)
582 rc = saa7127_set_output_type(sd, output);
583 return rc;
584}
585
586static int saa7127_s_stream(struct v4l2_subdev *sd, int enable)
587{
588 struct saa7127_state *state = to_state(sd);
589
590 if (state->video_enable == enable)
591 return 0;
592 return saa7127_set_video_enable(sd, enable);
593}
594
595static int saa7127_g_fmt(struct v4l2_subdev *sd, struct v4l2_format *fmt)
596{
597 struct saa7127_state *state = to_state(sd);
598
599 if (fmt->type != V4L2_BUF_TYPE_SLICED_VBI_CAPTURE)
600 return -EINVAL;
601
602 memset(&fmt->fmt.sliced, 0, sizeof(fmt->fmt.sliced));
603 if (state->vps_enable)
604 fmt->fmt.sliced.service_lines[0][16] = V4L2_SLICED_VPS;
605 if (state->wss_enable)
606 fmt->fmt.sliced.service_lines[0][23] = V4L2_SLICED_WSS_625;
607 if (state->cc_enable) {
608 fmt->fmt.sliced.service_lines[0][21] = V4L2_SLICED_CAPTION_525;
609 fmt->fmt.sliced.service_lines[1][21] = V4L2_SLICED_CAPTION_525;
610 }
611 fmt->fmt.sliced.service_set =
612 (state->vps_enable ? V4L2_SLICED_VPS : 0) |
613 (state->wss_enable ? V4L2_SLICED_WSS_625 : 0) |
614 (state->cc_enable ? V4L2_SLICED_CAPTION_525 : 0);
615 return 0;
616}
617
618static int saa7127_s_vbi_data(struct v4l2_subdev *sd, const struct v4l2_sliced_vbi_data *data)
619{
620 switch (data->id) {
621 case V4L2_SLICED_WSS_625:
622 return saa7127_set_wss(sd, data);
623 case V4L2_SLICED_VPS:
624 return saa7127_set_vps(sd, data);
625 case V4L2_SLICED_CAPTION_525:
626 if (data->field == 0)
627 return saa7127_set_cc(sd, data);
628 return saa7127_set_xds(sd, data);
629 default:
630 return -EINVAL;
631 }
632 return 0;
633}
634
635#ifdef CONFIG_VIDEO_ADV_DEBUG
636static int saa7127_g_register(struct v4l2_subdev *sd, struct v4l2_dbg_register *reg)
637{
638 struct i2c_client *client = v4l2_get_subdevdata(sd);
639
640 if (!v4l2_chip_match_i2c_client(client, ®->match))
641 return -EINVAL;
642 if (!capable(CAP_SYS_ADMIN))
643 return -EPERM;
644 reg->val = saa7127_read(sd, reg->reg & 0xff);
645 reg->size = 1;
646 return 0;
647}
648
649static int saa7127_s_register(struct v4l2_subdev *sd, struct v4l2_dbg_register *reg)
650{
651 struct i2c_client *client = v4l2_get_subdevdata(sd);
652
653 if (!v4l2_chip_match_i2c_client(client, ®->match))
654 return -EINVAL;
655 if (!capable(CAP_SYS_ADMIN))
656 return -EPERM;
657 saa7127_write(sd, reg->reg & 0xff, reg->val & 0xff);
658 return 0;
659}
660#endif
661
662static int saa7127_g_chip_ident(struct v4l2_subdev *sd, struct v4l2_dbg_chip_ident *chip)
663{
664 struct saa7127_state *state = to_state(sd);
665 struct i2c_client *client = v4l2_get_subdevdata(sd);
666
667 return v4l2_chip_ident_i2c_client(client, chip, state->ident, 0);
668}
669
670static int saa7127_log_status(struct v4l2_subdev *sd)
671{
672 struct saa7127_state *state = to_state(sd);
673
674 v4l2_info(sd, "Standard: %s\n", (state->std & V4L2_STD_525_60) ? "60 Hz" : "50 Hz");
675 v4l2_info(sd, "Input: %s\n", state->input_type ? "color bars" : "normal");
676 v4l2_info(sd, "Output: %s\n", state->video_enable ?
677 output_strs[state->output_type] : "disabled");
678 v4l2_info(sd, "WSS: %s\n", state->wss_enable ?
679 wss_strs[state->wss_mode] : "disabled");
680 v4l2_info(sd, "VPS: %s\n", state->vps_enable ? "enabled" : "disabled");
681 v4l2_info(sd, "CC: %s\n", state->cc_enable ? "enabled" : "disabled");
682 return 0;
683}
684
685
686
687static const struct v4l2_subdev_core_ops saa7127_core_ops = {
688 .log_status = saa7127_log_status,
689 .g_chip_ident = saa7127_g_chip_ident,
690#ifdef CONFIG_VIDEO_ADV_DEBUG
691 .g_register = saa7127_g_register,
692 .s_register = saa7127_s_register,
693#endif
694};
695
696static const struct v4l2_subdev_video_ops saa7127_video_ops = {
697 .s_vbi_data = saa7127_s_vbi_data,
698 .g_fmt = saa7127_g_fmt,
699 .s_std_output = saa7127_s_std_output,
700 .s_routing = saa7127_s_routing,
701 .s_stream = saa7127_s_stream,
702};
703
704static const struct v4l2_subdev_ops saa7127_ops = {
705 .core = &saa7127_core_ops,
706 .video = &saa7127_video_ops,
707};
708
709
710
711static int saa7127_probe(struct i2c_client *client,
712 const struct i2c_device_id *id)
713{
714 struct saa7127_state *state;
715 struct v4l2_subdev *sd;
716 struct v4l2_sliced_vbi_data vbi = { 0, 0, 0, 0 };
717
718
719 if (!i2c_check_functionality(client->adapter, I2C_FUNC_SMBUS_BYTE_DATA))
720 return -EIO;
721
722 v4l_dbg(1, debug, client, "detecting saa7127 client on address 0x%x\n",
723 client->addr << 1);
724
725 state = kzalloc(sizeof(struct saa7127_state), GFP_KERNEL);
726 if (state == NULL)
727 return -ENOMEM;
728
729 sd = &state->sd;
730 v4l2_i2c_subdev_init(sd, client, &saa7127_ops);
731
732
733
734
735
736
737 if ((saa7127_read(sd, 0) & 0xe4) != 0 ||
738 (saa7127_read(sd, 0x29) & 0x3f) != 0x1d) {
739 v4l2_dbg(1, debug, sd, "saa7127 not found\n");
740 kfree(state);
741 return -ENODEV;
742 }
743
744 if (id->driver_data) {
745 state->ident = id->driver_data;
746 } else {
747 int read_result;
748
749
750 read_result = saa7127_read(sd, SAA7129_REG_FADE_KEY_COL2);
751 saa7127_write(sd, SAA7129_REG_FADE_KEY_COL2, 0xaa);
752 if (saa7127_read(sd, SAA7129_REG_FADE_KEY_COL2) == 0xaa) {
753 saa7127_write(sd, SAA7129_REG_FADE_KEY_COL2,
754 read_result);
755 state->ident = V4L2_IDENT_SAA7129;
756 strlcpy(client->name, "saa7129", I2C_NAME_SIZE);
757 } else {
758 state->ident = V4L2_IDENT_SAA7127;
759 strlcpy(client->name, "saa7127", I2C_NAME_SIZE);
760 }
761 }
762
763 v4l2_info(sd, "%s found @ 0x%x (%s)\n", client->name,
764 client->addr << 1, client->adapter->name);
765
766 v4l2_dbg(1, debug, sd, "Configuring encoder\n");
767 saa7127_write_inittab(sd, saa7127_init_config_common);
768 saa7127_set_std(sd, V4L2_STD_NTSC);
769 saa7127_set_output_type(sd, SAA7127_OUTPUT_TYPE_BOTH);
770 saa7127_set_vps(sd, &vbi);
771 saa7127_set_wss(sd, &vbi);
772 saa7127_set_cc(sd, &vbi);
773 saa7127_set_xds(sd, &vbi);
774 if (test_image == 1)
775
776
777 saa7127_set_input_type(sd, SAA7127_INPUT_TYPE_TEST_IMAGE);
778 else
779 saa7127_set_input_type(sd, SAA7127_INPUT_TYPE_NORMAL);
780 saa7127_set_video_enable(sd, 1);
781
782 if (state->ident == V4L2_IDENT_SAA7129)
783 saa7127_write_inittab(sd, saa7129_init_config_extra);
784 return 0;
785}
786
787
788
789static int saa7127_remove(struct i2c_client *client)
790{
791 struct v4l2_subdev *sd = i2c_get_clientdata(client);
792
793 v4l2_device_unregister_subdev(sd);
794
795 saa7127_set_video_enable(sd, 0);
796 kfree(to_state(sd));
797 return 0;
798}
799
800
801
802static struct i2c_device_id saa7127_id[] = {
803 { "saa7127_auto", 0 },
804 { "saa7126", V4L2_IDENT_SAA7127 },
805 { "saa7127", V4L2_IDENT_SAA7127 },
806 { "saa7128", V4L2_IDENT_SAA7129 },
807 { "saa7129", V4L2_IDENT_SAA7129 },
808 { }
809};
810MODULE_DEVICE_TABLE(i2c, saa7127_id);
811
812static struct v4l2_i2c_driver_data v4l2_i2c_data = {
813 .name = "saa7127",
814 .probe = saa7127_probe,
815 .remove = saa7127_remove,
816 .id_table = saa7127_id,
817};
818
