1 /*
2 * saa7127 - Philips SAA7127/SAA7129 video encoder driver
3 *
4 * Copyright (C) 2003 Roy Bulter <rbulter@hetnet.nl>
5 *
6 * Based on SAA7126 video encoder driver by Gillem & Andreas Oberritter
7 *
8 * Copyright (C) 2000-2001 Gillem <htoa@gmx.net>
9 * Copyright (C) 2002 Andreas Oberritter <obi@saftware.de>
10 *
11 * Based on Stadis 4:2:2 MPEG-2 Decoder Driver by Nathan Laredo
12 *
13 * Copyright (C) 1999 Nathan Laredo <laredo@gnu.org>
14 *
15 * This driver is designed for the Hauppauge 250/350 Linux driver
16 * from the ivtv Project
17 *
18 * Copyright (C) 2003 Kevin Thayer <nufan_wfk@yahoo.com>
19 *
20 * Dual output support:
21 * Copyright (C) 2004 Eric Varsanyi
22 *
23 * NTSC Tuning and 7.5 IRE Setup
24 * Copyright (C) 2004 Chris Kennedy <c@groovy.org>
25 *
26 * VBI additions & cleanup:
27 * Copyright (C) 2004, 2005 Hans Verkuil <hverkuil@xs4all.nl>
28 *
29 * Note: the saa7126 is identical to the saa7127, and the saa7128 is
30 * identical to the saa7129, except that the saa7126 and saa7128 have
31 * macrovision anti-taping support. This driver will almost certainly
32 * work find for those chips, except of course for the missing anti-taping
33 * support.
34 *
35 * This program is free software; you can redistribute it and/or modify
36 * it under the terms of the GNU General Public License as published by
37 * the Free Software Foundation; either version 2 of the License, or
38 * (at your option) any later version.
39 *
40 * This program is distributed in the hope that it will be useful,
41 * but WITHOUT ANY WARRANTY; without even the implied warranty of
42 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
43 * GNU General Public License for more details.
44 *
45 * You should have received a copy of the GNU General Public License
46 * along with this program; if not, write to the Free Software
47 * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
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-common.h>
57 #include <media/v4l2-chip-ident.h>
58 #include <media/v4l2-i2c-drv.h>
59 #include <media/saa7127.h>
60
61 static int debug;
62 static int test_image;
63
64 MODULE_DESCRIPTION("Philips SAA7127/9 video encoder driver");
65 MODULE_AUTHOR("Kevin Thayer, Chris Kennedy, Hans Verkuil");
66 MODULE_LICENSE("GPL");
67 module_param(debug, int, 0644);
68 module_param(test_image, int, 0644);
69 MODULE_PARM_DESC(debug, "debug level (0-2)");
70 MODULE_PARM_DESC(test_image, "test_image (0-1)");
71
72
73 /*
74 * SAA7127 registers
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 * Arrays with configuration parameters for the SAA7127
131 *
132 **********************************************************************
133 */
134
135 struct i2c_reg_value {
136 unsigned char reg;
137 unsigned char value;
138 };
139
140 static 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
146 static 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 }, /* Macrovision enable/disable */
152 { SAA7127_REG_OUTPUT_PORT_CONTROL, 0x9e },
153 { SAA7127_REG_GAIN_LUMINANCE_RGB, 0x00 },
154 { SAA7127_REG_GAIN_COLORDIFF_RGB, 0x00 },
155 { SAA7127_REG_INPUT_PORT_CONTROL_1, 0x80 }, /* for color bars */
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
182 static const struct i2c_reg_value saa7127_init_config_60hz[] = {
183 { SAA7127_REG_BURST_START, 0x19 },
184 /* BURST_END is also used as a chip ID in saa7127_detect_client */
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
204 static struct i2c_reg_value saa7127_init_config_50hz[] = {
205 { SAA7127_REG_BURST_START, 0x21 },
206 /* BURST_END is also used as a chip ID in saa7127_detect_client */
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 * Encoder Struct, holds the configuration state of the encoder
229 *
230 **********************************************************************
231 */
232
233 struct saa7127_state {
234 v4l2_std_id std;
235 u32 ident;
236 enum saa7127_input_type input_type;
237 enum saa7127_output_type output_type;
238 int video_enable;
239 int wss_enable;
240 u16 wss_mode;
241 int cc_enable;
242 u16 cc_data;
243 int xds_enable;
244 u16 xds_data;
245 int vps_enable;
246 u8 vps_data[5];
247 u8 reg_2d;
248 u8 reg_3a;
249 u8 reg_3a_cb; /* colorbar bit */
250 u8 reg_61;
251 };
252
253 static const char * const output_strs[] =
254 {
255 "S-Video + Composite",
256 "Composite",
257 "S-Video",
258 "RGB",
259 "YUV C",
260 "YUV V"
261 };
262
263 static const char * const wss_strs[] = {
264 "invalid",
265 "letterbox 14:9 center",
266 "letterbox 14:9 top",
267 "invalid",
268 "letterbox 16:9 top",
269 "invalid",
270 "invalid",
271 "16:9 full format anamorphic",
272 "4:3 full format",
273 "invalid",
274 "invalid",
275 "letterbox 16:9 center",
276 "invalid",
277 "letterbox >16:9 center",
278 "14:9 full format center",
279 "invalid",
280 };
281
282 /* ----------------------------------------------------------------------- */
283
284 static int saa7127_read(struct i2c_client *client, u8 reg)
285 {
286 return i2c_smbus_read_byte_data(client, reg);
287 }
288
289 /* ----------------------------------------------------------------------- */
290
291 static int saa7127_write(struct i2c_client *client, u8 reg, u8 val)
292 {
293 int i;
294
295 for (i = 0; i < 3; i++) {
296 if (i2c_smbus_write_byte_data(client, reg, val) == 0)
297 return 0;
298 }
299 v4l_err(client, "I2C Write Problem\n");
300 return -1;
301 }
302
303 /* ----------------------------------------------------------------------- */
304
305 static int saa7127_write_inittab(struct i2c_client *client,
306 const struct i2c_reg_value *regs)
307 {
308 while (regs->reg != 0) {
309 saa7127_write(client, regs->reg, regs->value);
310 regs++;
311 }
312 return 0;
313 }
314
315 /* ----------------------------------------------------------------------- */
316
317 static int saa7127_set_vps(struct i2c_client *client, struct v4l2_sliced_vbi_data *data)
318 {
319 struct saa7127_state *state = i2c_get_clientdata(client);
320 int enable = (data->line != 0);
321
322 if (enable && (data->field != 0 || data->line != 16))
323 return -EINVAL;
324 if (state->vps_enable != enable) {
325 v4l_dbg(1, debug, client, "Turn VPS Signal %s\n", enable ? "on" : "off");
326 saa7127_write(client, 0x54, enable << 7);
327 state->vps_enable = enable;
328 }
329 if (!enable)
330 return 0;
331
332 state->vps_data[0] = data->data[2];
333 state->vps_data[1] = data->data[8];
334 state->vps_data[2] = data->data[9];
335 state->vps_data[3] = data->data[10];
336 state->vps_data[4] = data->data[11];
337 v4l_dbg(1, debug, client, "Set VPS data %02x %02x %02x %02x %02x\n",
338 state->vps_data[0], state->vps_data[1],
339 state->vps_data[2], state->vps_data[3],
340 state->vps_data[4]);
341 saa7127_write(client, 0x55, state->vps_data[0]);
342 saa7127_write(client, 0x56, state->vps_data[1]);
343 saa7127_write(client, 0x57, state->vps_data[2]);
344 saa7127_write(client, 0x58, state->vps_data[3]);
345 saa7127_write(client, 0x59, state->vps_data[4]);
346 return 0;
347 }
348
349 /* ----------------------------------------------------------------------- */
350
351 static int saa7127_set_cc(struct i2c_client *client, struct v4l2_sliced_vbi_data *data)
352 {
353 struct saa7127_state *state = i2c_get_clientdata(client);
354 u16 cc = data->data[1] << 8 | data->data[0];
355 int enable = (data->line != 0);
356
357 if (enable && (data->field != 0 || data->line != 21))
358 return -EINVAL;
359 if (state->cc_enable != enable) {
360 v4l_dbg(1, debug, client,
361 "Turn CC %s\n", enable ? "on" : "off");
362 saa7127_write(client, SAA7127_REG_CLOSED_CAPTION,
363 (state->xds_enable << 7) | (enable << 6) | 0x11);
364 state->cc_enable = enable;
365 }
366 if (!enable)
367 return 0;
368
369 v4l_dbg(2, debug, client, "CC data: %04x\n", cc);
370 saa7127_write(client, SAA7127_REG_LINE_21_ODD_0, cc & 0xff);
371 saa7127_write(client, SAA7127_REG_LINE_21_ODD_1, cc >> 8);
372 state->cc_data = cc;
373 return 0;
374 }
375
376 /* ----------------------------------------------------------------------- */
377
378 static int saa7127_set_xds(struct i2c_client *client, struct v4l2_sliced_vbi_data *data)
379 {
380 struct saa7127_state *state = i2c_get_clientdata(client);
381 u16 xds = data->data[1] << 8 | data->data[0];
382 int enable = (data->line != 0);
383
384 if (enable && (data->field != 1 || data->line != 21))
385 return -EINVAL;
386 if (state->xds_enable != enable) {
387 v4l_dbg(1, debug, client, "Turn XDS %s\n", enable ? "on" : "off");
388 saa7127_write(client, SAA7127_REG_CLOSED_CAPTION,
389 (enable << 7) | (state->cc_enable << 6) | 0x11);
390 state->xds_enable = enable;
391 }
392 if (!enable)
393 return 0;
394
395 v4l_dbg(2, debug, client, "XDS data: %04x\n", xds);
396 saa7127_write(client, SAA7127_REG_LINE_21_EVEN_0, xds & 0xff);
397 saa7127_write(client, SAA7127_REG_LINE_21_EVEN_1, xds >> 8);
398 state->xds_data = xds;
399 return 0;
400 }
401
402 /* ----------------------------------------------------------------------- */
403
404 static int saa7127_set_wss(struct i2c_client *client, struct v4l2_sliced_vbi_data *data)
405 {
406 struct saa7127_state *state = i2c_get_clientdata(client);
407 int enable = (data->line != 0);
408
409 if (enable && (data->field != 0 || data->line != 23))
410 return -EINVAL;
411 if (state->wss_enable != enable) {
412 v4l_dbg(1, debug, client, "Turn WSS %s\n", enable ? "on" : "off");
413 saa7127_write(client, 0x27, enable << 7);
414 state->wss_enable = enable;
415 }
416 if (!enable)
417 return 0;
418
419 saa7127_write(client, 0x26, data->data[0]);
420 saa7127_write(client, 0x27, 0x80 | (data->data[1] & 0x3f));
421 v4l_dbg(1, debug, client,
422 "WSS mode: %s\n", wss_strs[data->data[0] & 0xf]);
423 state->wss_mode = (data->data[1] & 0x3f) << 8 | data->data[0];
424 return 0;
425 }
426
427 /* ----------------------------------------------------------------------- */
428
429 static int saa7127_set_video_enable(struct i2c_client *client, int enable)
430 {
431 struct saa7127_state *state = i2c_get_clientdata(client);
432
433 if (enable) {
434 v4l_dbg(1, debug, client, "Enable Video Output\n");
435 saa7127_write(client, 0x2d, state->reg_2d);
436 saa7127_write(client, 0x61, state->reg_61);
437 } else {
438 v4l_dbg(1, debug, client, "Disable Video Output\n");
439 saa7127_write(client, 0x2d, (state->reg_2d & 0xf0));
440 saa7127_write(client, 0x61, (state->reg_61 | 0xc0));
441 }
442 state->video_enable = enable;
443 return 0;
444 }
445
446 /* ----------------------------------------------------------------------- */
447
448 static int saa7127_set_std(struct i2c_client *client, v4l2_std_id std)
449 {
450 struct saa7127_state *state = i2c_get_clientdata(client);
451 const struct i2c_reg_value *inittab;
452
453 if (std & V4L2_STD_525_60) {
454 v4l_dbg(1, debug, client, "Selecting 60 Hz video Standard\n");
455 inittab = saa7127_init_config_60hz;
456 state->reg_61 = SAA7127_60HZ_DAC_CONTROL;
457 } else {
458 v4l_dbg(1, debug, client, "Selecting 50 Hz video Standard\n");
459 inittab = saa7127_init_config_50hz;
460 state->reg_61 = SAA7127_50HZ_DAC_CONTROL;
461 }
462
463 /* Write Table */
464 saa7127_write_inittab(client, inittab);
465 state->std = std;
466 return 0;
467 }
468
469 /* ----------------------------------------------------------------------- */
470
471 static int saa7127_set_output_type(struct i2c_client *client, int output)
472 {
473 struct saa7127_state *state = i2c_get_clientdata(client);
474
475 switch (output) {
476 case SAA7127_OUTPUT_TYPE_RGB:
477 state->reg_2d = 0x0f; /* RGB + CVBS (for sync) */
478 state->reg_3a = 0x13; /* by default switch YUV to RGB-matrix on */
479 break;
480
481 case SAA7127_OUTPUT_TYPE_COMPOSITE:
482 state->reg_2d = 0x08; /* 00001000 CVBS only, RGB DAC's off (high impedance mode) */
483 state->reg_3a = 0x13; /* by default switch YUV to RGB-matrix on */
484 break;
485
486 case SAA7127_OUTPUT_TYPE_SVIDEO:
487 state->reg_2d = 0xff; /* 11111111 croma -> R, luma -> CVBS + G + B */
488 state->reg_3a = 0x13; /* by default switch YUV to RGB-matrix on */
489 break;
490
491 case SAA7127_OUTPUT_TYPE_YUV_V:
492 state->reg_2d = 0x4f; /* reg 2D = 01001111, all DAC's on, RGB + VBS */
493 state->reg_3a = 0x0b; /* reg 3A = 00001011, bypass RGB-matrix */
494 break;
495
496 case SAA7127_OUTPUT_TYPE_YUV_C:
497 state->reg_2d = 0x0f; /* reg 2D = 00001111, all DAC's on, RGB + CVBS */
498 state->reg_3a = 0x0b; /* reg 3A = 00001011, bypass RGB-matrix */
499 break;
500
501 case SAA7127_OUTPUT_TYPE_BOTH:
502 state->reg_2d = 0xbf;
503 state->reg_3a = 0x13; /* by default switch YUV to RGB-matrix on */
504 break;
505
506 default:
507 return -EINVAL;
508 }
509 v4l_dbg(1, debug, client,
510 "Selecting %s output type\n", output_strs[output]);
511
512 /* Configure Encoder */
513 saa7127_write(client, 0x2d, state->reg_2d);
514 saa7127_write(client, 0x3a, state->reg_3a | state->reg_3a_cb);
515 state->output_type = output;
516 return 0;
517 }
518
519 /* ----------------------------------------------------------------------- */
520
521 static int saa7127_set_input_type(struct i2c_client *client, int input)
522 {
523 struct saa7127_state *state = i2c_get_clientdata(client);
524
525 switch (input) {
526 case SAA7127_INPUT_TYPE_NORMAL: /* avia */
527 v4l_dbg(1, debug, client, "Selecting Normal Encoder Input\n");
528 state->reg_3a_cb = 0;
529 break;
530
531 case SAA7127_INPUT_TYPE_TEST_IMAGE: /* color bar */
532 v4l_dbg(1, debug, client, "Selecting Color Bar generator\n");
533 state->reg_3a_cb = 0x80;
534 break;
535
536 default:
537 return -EINVAL;
538 }
539 saa7127_write(client, 0x3a, state->reg_3a | state->reg_3a_cb);
540 state->input_type = input;
541 return 0;
542 }
543
544 /* ----------------------------------------------------------------------- */
545
546 static int saa7127_command(struct i2c_client *client,
547 unsigned int cmd, void *arg)
548 {
549 struct saa7127_state *state = i2c_get_clientdata(client);
550 struct v4l2_format *fmt = arg;
551 struct v4l2_routing *route = arg;
552
553 switch (cmd) {
554 case VIDIOC_INT_S_STD_OUTPUT:
555 if (state->std == *(v4l2_std_id *)arg)
556 break;
557 return saa7127_set_std(client, *(v4l2_std_id *)arg);
558
559 case VIDIOC_INT_G_STD_OUTPUT:
560 *(v4l2_std_id *)arg = state->std;
561 break;
562
563 case VIDIOC_INT_G_VIDEO_ROUTING:
564 route->input = state->input_type;
565 route->output = state->output_type;
566 break;
567
568 case VIDIOC_INT_S_VIDEO_ROUTING:
569 {
570 int rc = 0;
571
572 if (state->input_type != route->input)
573 rc = saa7127_set_input_type(client, route->input);
574 if (rc == 0 && state->output_type != route->output)
575 rc = saa7127_set_output_type(client, route->output);
576 return rc;
577 }
578
579 case VIDIOC_STREAMON:
580 case VIDIOC_STREAMOFF:
581 if (state->video_enable == (cmd == VIDIOC_STREAMON))
582 break;
583 return saa7127_set_video_enable(client, cmd == VIDIOC_STREAMON);
584
585 case VIDIOC_G_FMT:
586 if (fmt->type != V4L2_BUF_TYPE_SLICED_VBI_CAPTURE)
587 return -EINVAL;
588
589 memset(&fmt->fmt.sliced, 0, sizeof(fmt->fmt.sliced));
590 if (state->vps_enable)
591 fmt->fmt.sliced.service_lines[0][16] = V4L2_SLICED_VPS;
592 if (state->wss_enable)
593 fmt->fmt.sliced.service_lines[0][23] = V4L2_SLICED_WSS_625;
594 if (state->cc_enable) {
595 fmt->fmt.sliced.service_lines[0][21] = V4L2_SLICED_CAPTION_525;
596 fmt->fmt.sliced.service_lines[1][21] = V4L2_SLICED_CAPTION_525;
597 }
598 fmt->fmt.sliced.service_set =
599 (state->vps_enable ? V4L2_SLICED_VPS : 0) |
600 (state->wss_enable ? V4L2_SLICED_WSS_625 : 0) |
601 (state->cc_enable ? V4L2_SLICED_CAPTION_525 : 0);
602 break;
603
604 case VIDIOC_LOG_STATUS:
605 v4l_info(client, "Standard: %s\n", (state->std & V4L2_STD_525_60) ? "60 Hz" : "50 Hz");
606 v4l_info(client, "Input: %s\n", state->input_type ? "color bars" : "normal");
607 v4l_info(client, "Output: %s\n", state->video_enable ?
608 output_strs[state->output_type] : "disabled");
609 v4l_info(client, "WSS: %s\n", state->wss_enable ?
610 wss_strs[state->wss_mode] : "disabled");
611 v4l_info(client, "VPS: %s\n", state->vps_enable ? "enabled" : "disabled");
612 v4l_info(client, "CC: %s\n", state->cc_enable ? "enabled" : "disabled");
613 break;
614
615 #ifdef CONFIG_VIDEO_ADV_DEBUG
616 case VIDIOC_DBG_G_REGISTER:
617 case VIDIOC_DBG_S_REGISTER:
618 {
619 struct v4l2_register *reg = arg;
620
621 if (!v4l2_chip_match_i2c_client(client,
622 reg->match_type, reg->match_chip))
623 return -EINVAL;
624 if (!capable(CAP_SYS_ADMIN))
625 return -EPERM;
626 if (cmd == VIDIOC_DBG_G_REGISTER)
627 reg->val = saa7127_read(client, reg->reg & 0xff);
628 else
629 saa7127_write(client, reg->reg & 0xff, reg->val & 0xff);
630 break;
631 }
632 #endif
633
634 case VIDIOC_INT_S_VBI_DATA:
635 {
636 struct v4l2_sliced_vbi_data *data = arg;
637
638 switch (data->id) {
639 case V4L2_SLICED_WSS_625:
640 return saa7127_set_wss(client, data);
641 case V4L2_SLICED_VPS:
642 return saa7127_set_vps(client, data);
643 case V4L2_SLICED_CAPTION_525:
644 if (data->field == 0)
645 return saa7127_set_cc(client, data);
646 return saa7127_set_xds(client, data);
647 default:
648 return -EINVAL;
649 }
650 break;
651 }
652
653 case VIDIOC_G_CHIP_IDENT:
654 return v4l2_chip_ident_i2c_client(client, arg, state->ident, 0);
655
656 default:
657 return -EINVAL;
658 }
659 return 0;
660 }
661
662 /* ----------------------------------------------------------------------- */
663
664 static int saa7127_probe(struct i2c_client *client)
665 {
666 struct saa7127_state *state;
667 struct v4l2_sliced_vbi_data vbi = { 0, 0, 0, 0 }; /* set to disabled */
668 int read_result = 0;
669
670 /* Check if the adapter supports the needed features */
671 if (!i2c_check_functionality(client->adapter, I2C_FUNC_SMBUS_BYTE_DATA))
672 return -EIO;
673
674 snprintf(client->name, sizeof(client->name) - 1, "saa7127");
675
676 v4l_dbg(1, debug, client, "detecting saa7127 client on address 0x%x\n",
677 client->addr << 1);
678
679 /* First test register 0: Bits 5-7 are a version ID (should be 0),
680 and bit 2 should also be 0.
681 This is rather general, so the second test is more specific and
682 looks at the 'ending point of burst in clock cycles' which is
683 0x1d after a reset and not expected to ever change. */
684 if ((saa7127_read(client, 0) & 0xe4) != 0 ||
685 (saa7127_read(client, 0x29) & 0x3f) != 0x1d) {
686 v4l_dbg(1, debug, client, "saa7127 not found\n");
687 return -ENODEV;
688 }
689 state = kzalloc(sizeof(struct saa7127_state), GFP_KERNEL);
690
691 if (state == NULL)
692 return -ENOMEM;
693
694 i2c_set_clientdata(client, state);
695
696 /* Configure Encoder */
697
698 v4l_dbg(1, debug, client, "Configuring encoder\n");
699 saa7127_write_inittab(client, saa7127_init_config_common);
700 saa7127_set_std(client, V4L2_STD_NTSC);
701 saa7127_set_output_type(client, SAA7127_OUTPUT_TYPE_BOTH);
702 saa7127_set_vps(client, &vbi);
703 saa7127_set_wss(client, &vbi);
704 saa7127_set_cc(client, &vbi);
705 saa7127_set_xds(client, &vbi);
706 if (test_image == 1)
707 /* The Encoder has an internal Colorbar generator */
708 /* This can be used for debugging */
709 saa7127_set_input_type(client, SAA7127_INPUT_TYPE_TEST_IMAGE);
710 else
711 saa7127_set_input_type(client, SAA7127_INPUT_TYPE_NORMAL);
712 saa7127_set_video_enable(client, 1);
713
714 /* Detect if it's an saa7129 */
715 read_result = saa7127_read(client, SAA7129_REG_FADE_KEY_COL2);
716 saa7127_write(client, SAA7129_REG_FADE_KEY_COL2, 0xaa);
717 if (saa7127_read(client, SAA7129_REG_FADE_KEY_COL2) == 0xaa) {
718 v4l_info(client, "saa7129 found @ 0x%x (%s)\n",
719 client->addr << 1, client->adapter->name);
720 saa7127_write(client, SAA7129_REG_FADE_KEY_COL2, read_result);
721 saa7127_write_inittab(client, saa7129_init_config_extra);
722 state->ident = V4L2_IDENT_SAA7129;
723 } else {
724 v4l_info(client, "saa7127 found @ 0x%x (%s)\n",
725 client->addr << 1, client->adapter->name);
726 state->ident = V4L2_IDENT_SAA7127;
727 }
728 return 0;
729 }
730
731 /* ----------------------------------------------------------------------- */
732
733 static int saa7127_remove(struct i2c_client *client)
734 {
735 /* Turn off TV output */
736 saa7127_set_video_enable(client, 0);
737 kfree(i2c_get_clientdata(client));
738 return 0;
739 }
740
741 /* ----------------------------------------------------------------------- */
742
743 static struct v4l2_i2c_driver_data v4l2_i2c_data = {
744 .name = "saa7127",
745 .driverid = I2C_DRIVERID_SAA7127,
746 .command = saa7127_command,
747 .probe = saa7127_probe,
748 .remove = saa7127_remove,
749 };
750
751
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