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[media] v4l2: add const to argument of write-only s_register ioctl
[deliverable/linux.git] / drivers / media / i2c / saa7127.c
CommitLineData
cfbb5b8c
HV		 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
2a1d245b 32 * work fine for those chips, except of course for the missing anti-taping
cfbb5b8c
HV		 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>
627426c6 56#include <media/v4l2-device.h>
3434eb7e 57#include <media/v4l2-chip-ident.h>
39b6f687 58#include <media/saa7127.h>
cfbb5b8c 59
9fad368b
HV		 60static int debug;
61static int test_image;
cfbb5b8c
HV		 62
63MODULE_DESCRIPTION("Philips SAA7127/9 video encoder driver");
1f4b3365 64MODULE_AUTHOR("Kevin Thayer, Chris Kennedy, Hans Verkuil");
cfbb5b8c
HV		 65MODULE_LICENSE("GPL");
66module_param(debug, int, 0644);
67module_param(test_image, int, 0644);
68MODULE_PARM_DESC(debug, "debug level (0-2)");
69MODULE_PARM_DESC(test_image, "test_image (0-1)");
70
cfbb5b8c
HV		 71
72/*
73 * SAA7127 registers
74 */
75
76#define SAA7127_REG_STATUS 0x00
77#define SAA7127_REG_WIDESCREEN_CONFIG 0x26
78#define SAA7127_REG_WIDESCREEN_ENABLE 0x27
79#define SAA7127_REG_BURST_START 0x28
80#define SAA7127_REG_BURST_END 0x29
81#define SAA7127_REG_COPYGEN_0 0x2a
82#define SAA7127_REG_COPYGEN_1 0x2b
83#define SAA7127_REG_COPYGEN_2 0x2c
84#define SAA7127_REG_OUTPUT_PORT_CONTROL 0x2d
85#define SAA7127_REG_GAIN_LUMINANCE_RGB 0x38
86#define SAA7127_REG_GAIN_COLORDIFF_RGB 0x39
87#define SAA7127_REG_INPUT_PORT_CONTROL_1 0x3a
88#define SAA7129_REG_FADE_KEY_COL2 0x4f
89#define SAA7127_REG_CHROMA_PHASE 0x5a
90#define SAA7127_REG_GAINU 0x5b
91#define SAA7127_REG_GAINV 0x5c
92#define SAA7127_REG_BLACK_LEVEL 0x5d
93#define SAA7127_REG_BLANKING_LEVEL 0x5e
94#define SAA7127_REG_VBI_BLANKING 0x5f
95#define SAA7127_REG_DAC_CONTROL 0x61
96#define SAA7127_REG_BURST_AMP 0x62
97#define SAA7127_REG_SUBC3 0x63
98#define SAA7127_REG_SUBC2 0x64
99#define SAA7127_REG_SUBC1 0x65
100#define SAA7127_REG_SUBC0 0x66
101#define SAA7127_REG_LINE_21_ODD_0 0x67
102#define SAA7127_REG_LINE_21_ODD_1 0x68
103#define SAA7127_REG_LINE_21_EVEN_0 0x69
104#define SAA7127_REG_LINE_21_EVEN_1 0x6a
105#define SAA7127_REG_RCV_PORT_CONTROL 0x6b
106#define SAA7127_REG_VTRIG 0x6c
107#define SAA7127_REG_HTRIG_HI 0x6d
108#define SAA7127_REG_MULTI 0x6e
109#define SAA7127_REG_CLOSED_CAPTION 0x6f
110#define SAA7127_REG_RCV2_OUTPUT_START 0x70
111#define SAA7127_REG_RCV2_OUTPUT_END 0x71
112#define SAA7127_REG_RCV2_OUTPUT_MSBS 0x72
113#define SAA7127_REG_TTX_REQUEST_H_START 0x73
114#define SAA7127_REG_TTX_REQUEST_H_DELAY_LENGTH 0x74
115#define SAA7127_REG_CSYNC_ADVANCE_VSYNC_SHIFT 0x75
116#define SAA7127_REG_TTX_ODD_REQ_VERT_START 0x76
117#define SAA7127_REG_TTX_ODD_REQ_VERT_END 0x77
118#define SAA7127_REG_TTX_EVEN_REQ_VERT_START 0x78
119#define SAA7127_REG_TTX_EVEN_REQ_VERT_END 0x79
120#define SAA7127_REG_FIRST_ACTIVE 0x7a
121#define SAA7127_REG_LAST_ACTIVE 0x7b
122#define SAA7127_REG_MSB_VERTICAL 0x7c
123#define SAA7127_REG_DISABLE_TTX_LINE_LO_0 0x7e
124#define SAA7127_REG_DISABLE_TTX_LINE_LO_1 0x7f
125
126/*
127 **********************************************************************
128 *
129 * Arrays with configuration parameters for the SAA7127
130 *
131 **********************************************************************
132 */
133
134struct i2c_reg_value {
135 unsigned char reg;
136 unsigned char value;
137};
138
139static const struct i2c_reg_value saa7129_init_config_extra[] = {
140 { SAA7127_REG_OUTPUT_PORT_CONTROL, 0x38 },
141 { SAA7127_REG_VTRIG, 0xfa },
ea76ce52 142 { 0, 0 }
cfbb5b8c
HV		 143};
144
145static const struct i2c_reg_value saa7127_init_config_common[] = {
146 { SAA7127_REG_WIDESCREEN_CONFIG, 0x0d },
147 { SAA7127_REG_WIDESCREEN_ENABLE, 0x00 },
148 { SAA7127_REG_COPYGEN_0, 0x77 },
149 { SAA7127_REG_COPYGEN_1, 0x41 },
150 { SAA7127_REG_COPYGEN_2, 0x00 }, /* Macrovision enable/disable */
0f3559ef 151 { SAA7127_REG_OUTPUT_PORT_CONTROL, 0xbf },
cfbb5b8c
HV		 152 { SAA7127_REG_GAIN_LUMINANCE_RGB, 0x00 },
153 { SAA7127_REG_GAIN_COLORDIFF_RGB, 0x00 },
154 { SAA7127_REG_INPUT_PORT_CONTROL_1, 0x80 }, /* for color bars */
155 { SAA7127_REG_LINE_21_ODD_0, 0x77 },
156 { SAA7127_REG_LINE_21_ODD_1, 0x41 },
157 { SAA7127_REG_LINE_21_EVEN_0, 0x88 },
158 { SAA7127_REG_LINE_21_EVEN_1, 0x41 },
159 { SAA7127_REG_RCV_PORT_CONTROL, 0x12 },
160 { SAA7127_REG_VTRIG, 0xf9 },
161 { SAA7127_REG_HTRIG_HI, 0x00 },
162 { SAA7127_REG_RCV2_OUTPUT_START, 0x41 },
163 { SAA7127_REG_RCV2_OUTPUT_END, 0xc3 },
164 { SAA7127_REG_RCV2_OUTPUT_MSBS, 0x00 },
165 { SAA7127_REG_TTX_REQUEST_H_START, 0x3e },
166 { SAA7127_REG_TTX_REQUEST_H_DELAY_LENGTH, 0xb8 },
167 { SAA7127_REG_CSYNC_ADVANCE_VSYNC_SHIFT, 0x03 },
168 { SAA7127_REG_TTX_ODD_REQ_VERT_START, 0x15 },
169 { SAA7127_REG_TTX_ODD_REQ_VERT_END, 0x16 },
170 { SAA7127_REG_TTX_EVEN_REQ_VERT_START, 0x15 },
171 { SAA7127_REG_TTX_EVEN_REQ_VERT_END, 0x16 },
172 { SAA7127_REG_FIRST_ACTIVE, 0x1a },
173 { SAA7127_REG_LAST_ACTIVE, 0x01 },
174 { SAA7127_REG_MSB_VERTICAL, 0xc0 },
175 { SAA7127_REG_DISABLE_TTX_LINE_LO_0, 0x00 },
176 { SAA7127_REG_DISABLE_TTX_LINE_LO_1, 0x00 },
177 { 0, 0 }
178};
179
180#define SAA7127_60HZ_DAC_CONTROL 0x15
181static const struct i2c_reg_value saa7127_init_config_60hz[] = {
182 { SAA7127_REG_BURST_START, 0x19 },
f05b7f5e 183 /* BURST_END is also used as a chip ID in saa7127_probe */
cfbb5b8c
HV		 184 { SAA7127_REG_BURST_END, 0x1d },
185 { SAA7127_REG_CHROMA_PHASE, 0xa3 },
186 { SAA7127_REG_GAINU, 0x98 },
187 { SAA7127_REG_GAINV, 0xd3 },
188 { SAA7127_REG_BLACK_LEVEL, 0x39 },
189 { SAA7127_REG_BLANKING_LEVEL, 0x2e },
190 { SAA7127_REG_VBI_BLANKING, 0x2e },
191 { SAA7127_REG_DAC_CONTROL, 0x15 },
192 { SAA7127_REG_BURST_AMP, 0x4d },
193 { SAA7127_REG_SUBC3, 0x1f },
194 { SAA7127_REG_SUBC2, 0x7c },
195 { SAA7127_REG_SUBC1, 0xf0 },
196 { SAA7127_REG_SUBC0, 0x21 },
197 { SAA7127_REG_MULTI, 0x90 },
198 { SAA7127_REG_CLOSED_CAPTION, 0x11 },
199 { 0, 0 }
200};
201
f05b7f5e
AW		 202#define SAA7127_50HZ_PAL_DAC_CONTROL 0x02
203static struct i2c_reg_value saa7127_init_config_50hz_pal[] = {
cfbb5b8c 204 { SAA7127_REG_BURST_START, 0x21 },
f05b7f5e 205 /* BURST_END is also used as a chip ID in saa7127_probe */
cfbb5b8c
HV		 206 { SAA7127_REG_BURST_END, 0x1d },
207 { SAA7127_REG_CHROMA_PHASE, 0x3f },
208 { SAA7127_REG_GAINU, 0x7d },
209 { SAA7127_REG_GAINV, 0xaf },
210 { SAA7127_REG_BLACK_LEVEL, 0x33 },
211 { SAA7127_REG_BLANKING_LEVEL, 0x35 },
212 { SAA7127_REG_VBI_BLANKING, 0x35 },
213 { SAA7127_REG_DAC_CONTROL, 0x02 },
214 { SAA7127_REG_BURST_AMP, 0x2f },
215 { SAA7127_REG_SUBC3, 0xcb },
216 { SAA7127_REG_SUBC2, 0x8a },
217 { SAA7127_REG_SUBC1, 0x09 },
218 { SAA7127_REG_SUBC0, 0x2a },
219 { SAA7127_REG_MULTI, 0xa0 },
220 { SAA7127_REG_CLOSED_CAPTION, 0x00 },
221 { 0, 0 }
222};
223
f05b7f5e
AW		 224#define SAA7127_50HZ_SECAM_DAC_CONTROL 0x08
225static struct i2c_reg_value saa7127_init_config_50hz_secam[] = {
226 { SAA7127_REG_BURST_START, 0x21 },
227 /* BURST_END is also used as a chip ID in saa7127_probe */
228 { SAA7127_REG_BURST_END, 0x1d },
229 { SAA7127_REG_CHROMA_PHASE, 0x3f },
230 { SAA7127_REG_GAINU, 0x6a },
231 { SAA7127_REG_GAINV, 0x81 },
232 { SAA7127_REG_BLACK_LEVEL, 0x33 },
233 { SAA7127_REG_BLANKING_LEVEL, 0x35 },
234 { SAA7127_REG_VBI_BLANKING, 0x35 },
235 { SAA7127_REG_DAC_CONTROL, 0x08 },
236 { SAA7127_REG_BURST_AMP, 0x2f },
237 { SAA7127_REG_SUBC3, 0xb2 },
238 { SAA7127_REG_SUBC2, 0x3b },
239 { SAA7127_REG_SUBC1, 0xa3 },
240 { SAA7127_REG_SUBC0, 0x28 },
241 { SAA7127_REG_MULTI, 0x90 },
242 { SAA7127_REG_CLOSED_CAPTION, 0x00 },
243 { 0, 0 }
244};
245
cfbb5b8c
HV		 246/*
247 **********************************************************************
248 *
249 * Encoder Struct, holds the configuration state of the encoder
250 *
251 **********************************************************************
252 */
253
254struct saa7127_state {
627426c6 255 struct v4l2_subdev sd;
cfbb5b8c 256 v4l2_std_id std;
3434eb7e 257 u32 ident;
cfbb5b8c
HV		 258 enum saa7127_input_type input_type;
259 enum saa7127_output_type output_type;
260 int video_enable;
261 int wss_enable;
262 u16 wss_mode;
263 int cc_enable;
264 u16 cc_data;
265 int xds_enable;
266 u16 xds_data;
267 int vps_enable;
268 u8 vps_data[5];
269 u8 reg_2d;
270 u8 reg_3a;
271 u8 reg_3a_cb; /* colorbar bit */
272 u8 reg_61;
273};
274
627426c6
HV		 275static inline struct saa7127_state *to_state(struct v4l2_subdev *sd)
276{
277 return container_of(sd, struct saa7127_state, sd);
278}
279
cfbb5b8c
HV		 280static const char * const output_strs[] =
281{
282 "S-Video + Composite",
283 "Composite",
284 "S-Video",
285 "RGB",
286 "YUV C",
287 "YUV V"
288};
289
290static const char * const wss_strs[] = {
291 "invalid",
292 "letterbox 14:9 center",
293 "letterbox 14:9 top",
294 "invalid",
295 "letterbox 16:9 top",
296 "invalid",
297 "invalid",
35a303b1 298 "16:9 full format anamorphic",
cfbb5b8c
HV		 299 "4:3 full format",
300 "invalid",
301 "invalid",
302 "letterbox 16:9 center",
303 "invalid",
304 "letterbox >16:9 center",
305 "14:9 full format center",
306 "invalid",
307};
308
309/* ----------------------------------------------------------------------- */
310
627426c6 311static int saa7127_read(struct v4l2_subdev *sd, u8 reg)
cfbb5b8c 312{
627426c6
HV		 313 struct i2c_client *client = v4l2_get_subdevdata(sd);
314
cfbb5b8c
HV		 315 return i2c_smbus_read_byte_data(client, reg);
316}
317
318/* ----------------------------------------------------------------------- */
319
627426c6 320static int saa7127_write(struct v4l2_subdev *sd, u8 reg, u8 val)
cfbb5b8c 321{
627426c6 322 struct i2c_client *client = v4l2_get_subdevdata(sd);
cfbb5b8c
HV		 323 int i;
324
325 for (i = 0; i < 3; i++) {
326 if (i2c_smbus_write_byte_data(client, reg, val) == 0)
327 return 0;
328 }
627426c6 329 v4l2_err(sd, "I2C Write Problem\n");
cfbb5b8c
HV		 330 return -1;
331}
332
333/* ----------------------------------------------------------------------- */
334
627426c6 335static int saa7127_write_inittab(struct v4l2_subdev *sd,
cfbb5b8c
HV		 336 const struct i2c_reg_value *regs)
337{
338 while (regs->reg != 0) {
627426c6 339 saa7127_write(sd, regs->reg, regs->value);
cfbb5b8c
HV		 340 regs++;
341 }
342 return 0;
343}
344
345/* ----------------------------------------------------------------------- */
346
627426c6 347static int saa7127_set_vps(struct v4l2_subdev *sd, const struct v4l2_sliced_vbi_data *data)
cfbb5b8c 348{
627426c6 349 struct saa7127_state *state = to_state(sd);
cfbb5b8c
HV		 350 int enable = (data->line != 0);
351
352 if (enable && (data->field != 0 || data->line != 16))
353 return -EINVAL;
354 if (state->vps_enable != enable) {
627426c6
HV		 355 v4l2_dbg(1, debug, sd, "Turn VPS Signal %s\n", enable ? "on" : "off");
356 saa7127_write(sd, 0x54, enable << 7);
cfbb5b8c
HV		 357 state->vps_enable = enable;
358 }
359 if (!enable)
360 return 0;
361
2f3a9893
HV		 362 state->vps_data[0] = data->data[2];
363 state->vps_data[1] = data->data[8];
364 state->vps_data[2] = data->data[9];
365 state->vps_data[3] = data->data[10];
366 state->vps_data[4] = data->data[11];
6f28f75a 367 v4l2_dbg(1, debug, sd, "Set VPS data %*ph\n", 5, state->vps_data);
627426c6
HV		 368 saa7127_write(sd, 0x55, state->vps_data[0]);
369 saa7127_write(sd, 0x56, state->vps_data[1]);
370 saa7127_write(sd, 0x57, state->vps_data[2]);
371 saa7127_write(sd, 0x58, state->vps_data[3]);
372 saa7127_write(sd, 0x59, state->vps_data[4]);
cfbb5b8c
HV		 373 return 0;
374}
375
376/* ----------------------------------------------------------------------- */
377
627426c6 378static int saa7127_set_cc(struct v4l2_subdev *sd, const struct v4l2_sliced_vbi_data *data)
cfbb5b8c 379{
627426c6 380 struct saa7127_state *state = to_state(sd);
515432aa 381 u16 cc = data->data[1] << 8 | data->data[0];
cfbb5b8c
HV		 382 int enable = (data->line != 0);
383
384 if (enable && (data->field != 0 || data->line != 21))
385 return -EINVAL;
386 if (state->cc_enable != enable) {
627426c6 387 v4l2_dbg(1, debug, sd,
9fad368b 388 "Turn CC %s\n", enable ? "on" : "off");
627426c6 389 saa7127_write(sd, SAA7127_REG_CLOSED_CAPTION,
9fad368b 390 (state->xds_enable << 7) | (enable << 6) | 0x11);
cfbb5b8c
HV		 391 state->cc_enable = enable;
392 }
393 if (!enable)
394 return 0;
395
627426c6
HV		 396 v4l2_dbg(2, debug, sd, "CC data: %04x\n", cc);
397 saa7127_write(sd, SAA7127_REG_LINE_21_ODD_0, cc & 0xff);
398 saa7127_write(sd, SAA7127_REG_LINE_21_ODD_1, cc >> 8);
cfbb5b8c
HV		 399 state->cc_data = cc;
400 return 0;
401}
402
403/* ----------------------------------------------------------------------- */
404
627426c6 405static int saa7127_set_xds(struct v4l2_subdev *sd, const struct v4l2_sliced_vbi_data *data)
cfbb5b8c 406{
627426c6 407 struct saa7127_state *state = to_state(sd);
cfbb5b8c
HV		 408 u16 xds = data->data[1] << 8 | data->data[0];
409 int enable = (data->line != 0);
410
411 if (enable && (data->field != 1 || data->line != 21))
412 return -EINVAL;
413 if (state->xds_enable != enable) {
627426c6
HV		 414 v4l2_dbg(1, debug, sd, "Turn XDS %s\n", enable ? "on" : "off");
415 saa7127_write(sd, SAA7127_REG_CLOSED_CAPTION,
515432aa 416 (enable << 7) | (state->cc_enable << 6) | 0x11);
cfbb5b8c
HV		 417 state->xds_enable = enable;
418 }
419 if (!enable)
420 return 0;
421
627426c6
HV		 422 v4l2_dbg(2, debug, sd, "XDS data: %04x\n", xds);
423 saa7127_write(sd, SAA7127_REG_LINE_21_EVEN_0, xds & 0xff);
424 saa7127_write(sd, SAA7127_REG_LINE_21_EVEN_1, xds >> 8);
cfbb5b8c
HV		 425 state->xds_data = xds;
426 return 0;
427}
428
429/* ----------------------------------------------------------------------- */
430
627426c6 431static int saa7127_set_wss(struct v4l2_subdev *sd, const struct v4l2_sliced_vbi_data *data)
cfbb5b8c 432{
627426c6 433 struct saa7127_state *state = to_state(sd);
cfbb5b8c
HV		 434 int enable = (data->line != 0);
435
436 if (enable && (data->field != 0 || data->line != 23))
437 return -EINVAL;
438 if (state->wss_enable != enable) {
627426c6
HV		 439 v4l2_dbg(1, debug, sd, "Turn WSS %s\n", enable ? "on" : "off");
440 saa7127_write(sd, 0x27, enable << 7);
cfbb5b8c
HV		 441 state->wss_enable = enable;
442 }
443 if (!enable)
444 return 0;
445
627426c6
HV		 446 saa7127_write(sd, 0x26, data->data[0]);
447 saa7127_write(sd, 0x27, 0x80 | (data->data[1] & 0x3f));
448 v4l2_dbg(1, debug, sd,
9fad368b 449 "WSS mode: %s\n", wss_strs[data->data[0] & 0xf]);
cfbb5b8c
HV		 450 state->wss_mode = (data->data[1] & 0x3f) << 8 | data->data[0];
451 return 0;
452}
453
454/* ----------------------------------------------------------------------- */
455
627426c6 456static int saa7127_set_video_enable(struct v4l2_subdev *sd, int enable)
cfbb5b8c 457{
627426c6 458 struct saa7127_state *state = to_state(sd);
cfbb5b8c
HV		 459
460 if (enable) {
627426c6
HV		 461 v4l2_dbg(1, debug, sd, "Enable Video Output\n");
462 saa7127_write(sd, 0x2d, state->reg_2d);
463 saa7127_write(sd, 0x61, state->reg_61);
cfbb5b8c 464 } else {
627426c6
HV		 465 v4l2_dbg(1, debug, sd, "Disable Video Output\n");
466 saa7127_write(sd, 0x2d, (state->reg_2d & 0xf0));
467 saa7127_write(sd, 0x61, (state->reg_61 | 0xc0));
cfbb5b8c
HV		 468 }
469 state->video_enable = enable;
470 return 0;
471}
472
473/* ----------------------------------------------------------------------- */
474
627426c6 475static int saa7127_set_std(struct v4l2_subdev *sd, v4l2_std_id std)
cfbb5b8c 476{
627426c6 477 struct saa7127_state *state = to_state(sd);
cfbb5b8c
HV		 478 const struct i2c_reg_value *inittab;
479
480 if (std & V4L2_STD_525_60) {
627426c6 481 v4l2_dbg(1, debug, sd, "Selecting 60 Hz video Standard\n");
cfbb5b8c
HV		 482 inittab = saa7127_init_config_60hz;
483 state->reg_61 = SAA7127_60HZ_DAC_CONTROL;
f05b7f5e
AW		 484
485 } else if (state->ident == V4L2_IDENT_SAA7129 &&
486 (std & V4L2_STD_SECAM) &&
487 !(std & (V4L2_STD_625_50 & ~V4L2_STD_SECAM))) {
488
489 /* If and only if SECAM, with a SAA712[89] */
490 v4l2_dbg(1, debug, sd,
491 "Selecting 50 Hz SECAM video Standard\n");
492 inittab = saa7127_init_config_50hz_secam;
493 state->reg_61 = SAA7127_50HZ_SECAM_DAC_CONTROL;
494
cfbb5b8c 495 } else {
f05b7f5e
AW		 496 v4l2_dbg(1, debug, sd, "Selecting 50 Hz PAL video Standard\n");
497 inittab = saa7127_init_config_50hz_pal;
498 state->reg_61 = SAA7127_50HZ_PAL_DAC_CONTROL;
cfbb5b8c
HV		 499 }
500
501 /* Write Table */
627426c6 502 saa7127_write_inittab(sd, inittab);
cfbb5b8c
HV		 503 state->std = std;
504 return 0;
505}
506
507/* ----------------------------------------------------------------------- */
508
627426c6 509static int saa7127_set_output_type(struct v4l2_subdev *sd, int output)
cfbb5b8c 510{
627426c6 511 struct saa7127_state *state = to_state(sd);
cfbb5b8c
HV		 512
513 switch (output) {
514 case SAA7127_OUTPUT_TYPE_RGB:
515 state->reg_2d = 0x0f; /* RGB + CVBS (for sync) */
516 state->reg_3a = 0x13; /* by default switch YUV to RGB-matrix on */
517 break;
518
519 case SAA7127_OUTPUT_TYPE_COMPOSITE:
0f3559ef
MD		 520 if (state->ident == V4L2_IDENT_SAA7129)
521 state->reg_2d = 0x20; /* CVBS only */
522 else
523 state->reg_2d = 0x08; /* 00001000 CVBS only, RGB DAC's off (high impedance mode) */
cfbb5b8c
HV		 524 state->reg_3a = 0x13; /* by default switch YUV to RGB-matrix on */
525 break;
526
527 case SAA7127_OUTPUT_TYPE_SVIDEO:
0f3559ef
MD		 528 if (state->ident == V4L2_IDENT_SAA7129)
529 state->reg_2d = 0x18; /* Y + C */
530 else
531 state->reg_2d = 0xff; /*11111111 croma -> R, luma -> CVBS + G + B */
cfbb5b8c
HV		 532 state->reg_3a = 0x13; /* by default switch YUV to RGB-matrix on */
533 break;
534
535 case SAA7127_OUTPUT_TYPE_YUV_V:
536 state->reg_2d = 0x4f; /* reg 2D = 01001111, all DAC's on, RGB + VBS */
537 state->reg_3a = 0x0b; /* reg 3A = 00001011, bypass RGB-matrix */
538 break;
539
540 case SAA7127_OUTPUT_TYPE_YUV_C:
541 state->reg_2d = 0x0f; /* reg 2D = 00001111, all DAC's on, RGB + CVBS */
542 state->reg_3a = 0x0b; /* reg 3A = 00001011, bypass RGB-matrix */
543 break;
544
545 case SAA7127_OUTPUT_TYPE_BOTH:
0f3559ef
MD		 546 if (state->ident == V4L2_IDENT_SAA7129)
547 state->reg_2d = 0x38;
548 else
549 state->reg_2d = 0xbf;
cfbb5b8c
HV		 550 state->reg_3a = 0x13; /* by default switch YUV to RGB-matrix on */
551 break;
552
553 default:
554 return -EINVAL;
555 }
627426c6 556 v4l2_dbg(1, debug, sd,
9fad368b 557 "Selecting %s output type\n", output_strs[output]);
cfbb5b8c
HV		 558
559 /* Configure Encoder */
627426c6
HV		 560 saa7127_write(sd, 0x2d, state->reg_2d);
561 saa7127_write(sd, 0x3a, state->reg_3a | state->reg_3a_cb);
cfbb5b8c
HV		 562 state->output_type = output;
563 return 0;
564}
565
566/* ----------------------------------------------------------------------- */
567
627426c6 568static int saa7127_set_input_type(struct v4l2_subdev *sd, int input)
cfbb5b8c 569{
627426c6 570 struct saa7127_state *state = to_state(sd);
cfbb5b8c
HV		 571
572 switch (input) {
573 case SAA7127_INPUT_TYPE_NORMAL: /* avia */
627426c6 574 v4l2_dbg(1, debug, sd, "Selecting Normal Encoder Input\n");
cfbb5b8c
HV		 575 state->reg_3a_cb = 0;
576 break;
577
578 case SAA7127_INPUT_TYPE_TEST_IMAGE: /* color bar */
627426c6 579 v4l2_dbg(1, debug, sd, "Selecting Color Bar generator\n");
cfbb5b8c
HV		 580 state->reg_3a_cb = 0x80;
581 break;
582
583 default:
584 return -EINVAL;
585 }
627426c6 586 saa7127_write(sd, 0x3a, state->reg_3a | state->reg_3a_cb);
cfbb5b8c
HV		 587 state->input_type = input;
588 return 0;
589}
590
591/* ----------------------------------------------------------------------- */
592
627426c6 593static int saa7127_s_std_output(struct v4l2_subdev *sd, v4l2_std_id std)
cfbb5b8c 594{
627426c6 595 struct saa7127_state *state = to_state(sd);
cfbb5b8c 596
627426c6
HV		 597 if (state->std == std)
598 return 0;
599 return saa7127_set_std(sd, std);
600}
cfbb5b8c 601
5325b427
HV		 602static int saa7127_s_routing(struct v4l2_subdev *sd,
603 u32 input, u32 output, u32 config)
627426c6
HV		 604{
605 struct saa7127_state *state = to_state(sd);
606 int rc = 0;
607
5325b427
HV		 608 if (state->input_type != input)
609 rc = saa7127_set_input_type(sd, input);
610 if (rc == 0 && state->output_type != output)
611 rc = saa7127_set_output_type(sd, output);
627426c6
HV		 612 return rc;
613}
39b6f687 614
627426c6
HV		 615static int saa7127_s_stream(struct v4l2_subdev *sd, int enable)
616{
617 struct saa7127_state *state = to_state(sd);
cfbb5b8c 618
627426c6
HV		 619 if (state->video_enable == enable)
620 return 0;
621 return saa7127_set_video_enable(sd, enable);
622}
cfbb5b8c 623
1dbf8539 624static int saa7127_g_sliced_fmt(struct v4l2_subdev *sd, struct v4l2_sliced_vbi_format *fmt)
627426c6
HV		 625{
626 struct saa7127_state *state = to_state(sd);
cfbb5b8c 627
30634e8e 628 memset(fmt->service_lines, 0, sizeof(fmt->service_lines));
627426c6 629 if (state->vps_enable)
1dbf8539 630 fmt->service_lines[0][16] = V4L2_SLICED_VPS;
627426c6 631 if (state->wss_enable)
1dbf8539 632 fmt->service_lines[0][23] = V4L2_SLICED_WSS_625;
627426c6 633 if (state->cc_enable) {
1dbf8539
HV		 634 fmt->service_lines[0][21] = V4L2_SLICED_CAPTION_525;
635 fmt->service_lines[1][21] = V4L2_SLICED_CAPTION_525;
cfbb5b8c 636 }
1dbf8539 637 fmt->service_set =
627426c6
HV		 638 (state->vps_enable ? V4L2_SLICED_VPS : 0) |
639 (state->wss_enable ? V4L2_SLICED_WSS_625 : 0) |
640 (state->cc_enable ? V4L2_SLICED_CAPTION_525 : 0);
641 return 0;
642}
cfbb5b8c 643
627426c6
HV		 644static int saa7127_s_vbi_data(struct v4l2_subdev *sd, const struct v4l2_sliced_vbi_data *data)
645{
646 switch (data->id) {
647 case V4L2_SLICED_WSS_625:
648 return saa7127_set_wss(sd, data);
649 case V4L2_SLICED_VPS:
650 return saa7127_set_vps(sd, data);
651 case V4L2_SLICED_CAPTION_525:
652 if (data->field == 0)
653 return saa7127_set_cc(sd, data);
654 return saa7127_set_xds(sd, data);
cfbb5b8c
HV		 655 default:
656 return -EINVAL;
657 }
658 return 0;
659}
660
627426c6 661#ifdef CONFIG_VIDEO_ADV_DEBUG
aecde8b5 662static int saa7127_g_register(struct v4l2_subdev *sd, struct v4l2_dbg_register *reg)
627426c6
HV		 663{
664 struct i2c_client *client = v4l2_get_subdevdata(sd);
665
aecde8b5 666 if (!v4l2_chip_match_i2c_client(client, &reg->match))
627426c6
HV		 667 return -EINVAL;
668 if (!capable(CAP_SYS_ADMIN))
669 return -EPERM;
670 reg->val = saa7127_read(sd, reg->reg & 0xff);
aecde8b5 671 reg->size = 1;
627426c6
HV		 672 return 0;
673}
674
977ba3b1 675static int saa7127_s_register(struct v4l2_subdev *sd, const struct v4l2_dbg_register *reg)
627426c6
HV		 676{
677 struct i2c_client *client = v4l2_get_subdevdata(sd);
678
aecde8b5 679 if (!v4l2_chip_match_i2c_client(client, &reg->match))
627426c6
HV		 680 return -EINVAL;
681 if (!capable(CAP_SYS_ADMIN))
682 return -EPERM;
683 saa7127_write(sd, reg->reg & 0xff, reg->val & 0xff);
684 return 0;
685}
686#endif
687
aecde8b5 688static int saa7127_g_chip_ident(struct v4l2_subdev *sd, struct v4l2_dbg_chip_ident *chip)
627426c6
HV		 689{
690 struct saa7127_state *state = to_state(sd);
691 struct i2c_client *client = v4l2_get_subdevdata(sd);
692
693 return v4l2_chip_ident_i2c_client(client, chip, state->ident, 0);
694}
695
696static int saa7127_log_status(struct v4l2_subdev *sd)
697{
698 struct saa7127_state *state = to_state(sd);
699
700 v4l2_info(sd, "Standard: %s\n", (state->std & V4L2_STD_525_60) ? "60 Hz" : "50 Hz");
701 v4l2_info(sd, "Input: %s\n", state->input_type ? "color bars" : "normal");
702 v4l2_info(sd, "Output: %s\n", state->video_enable ?
703 output_strs[state->output_type] : "disabled");
704 v4l2_info(sd, "WSS: %s\n", state->wss_enable ?
705 wss_strs[state->wss_mode] : "disabled");
706 v4l2_info(sd, "VPS: %s\n", state->vps_enable ? "enabled" : "disabled");
707 v4l2_info(sd, "CC: %s\n", state->cc_enable ? "enabled" : "disabled");
708 return 0;
709}
710
711/* ----------------------------------------------------------------------- */
712
713static const struct v4l2_subdev_core_ops saa7127_core_ops = {
714 .log_status = saa7127_log_status,
715 .g_chip_ident = saa7127_g_chip_ident,
716#ifdef CONFIG_VIDEO_ADV_DEBUG
717 .g_register = saa7127_g_register,
718 .s_register = saa7127_s_register,
719#endif
720};
721
722static const struct v4l2_subdev_video_ops saa7127_video_ops = {
627426c6
HV		 723 .s_std_output = saa7127_s_std_output,
724 .s_routing = saa7127_s_routing,
725 .s_stream = saa7127_s_stream,
726};
727
32cd527f
HV		 728static const struct v4l2_subdev_vbi_ops saa7127_vbi_ops = {
729 .s_vbi_data = saa7127_s_vbi_data,
1dbf8539 730 .g_sliced_fmt = saa7127_g_sliced_fmt,
32cd527f
HV		 731};
732
627426c6
HV		 733static const struct v4l2_subdev_ops saa7127_ops = {
734 .core = &saa7127_core_ops,
735 .video = &saa7127_video_ops,
32cd527f 736 .vbi = &saa7127_vbi_ops,
627426c6
HV		 737};
738
cfbb5b8c
HV		 739/* ----------------------------------------------------------------------- */
740
d2653e92
JD		 741static int saa7127_probe(struct i2c_client *client,
742 const struct i2c_device_id *id)
cfbb5b8c 743{
cfbb5b8c 744 struct saa7127_state *state;
627426c6 745 struct v4l2_subdev *sd;
cfbb5b8c 746 struct v4l2_sliced_vbi_data vbi = { 0, 0, 0, 0 }; /* set to disabled */
cfbb5b8c
HV		 747
748 /* Check if the adapter supports the needed features */
77566dd7 749 if (!i2c_check_functionality(client->adapter, I2C_FUNC_SMBUS_BYTE_DATA))
188f3457 750 return -EIO;
cfbb5b8c 751
9fad368b
HV		 752 v4l_dbg(1, debug, client, "detecting saa7127 client on address 0x%x\n",
753 client->addr << 1);
cfbb5b8c 754
627426c6
HV		 755 state = kzalloc(sizeof(struct saa7127_state), GFP_KERNEL);
756 if (state == NULL)
757 return -ENOMEM;
758
759 sd = &state->sd;
760 v4l2_i2c_subdev_init(sd, client, &saa7127_ops);
761
cfbb5b8c
HV		 762 /* First test register 0: Bits 5-7 are a version ID (should be 0),
763 and bit 2 should also be 0.
764 This is rather general, so the second test is more specific and
765 looks at the 'ending point of burst in clock cycles' which is
766 0x1d after a reset and not expected to ever change. */
627426c6
HV		 767 if ((saa7127_read(sd, 0) & 0xe4) != 0 ||
768 (saa7127_read(sd, 0x29) & 0x3f) != 0x1d) {
769 v4l2_dbg(1, debug, sd, "saa7127 not found\n");
770 kfree(state);
188f3457 771 return -ENODEV;
cfbb5b8c 772 }
cfbb5b8c 773
5daed074
JD		 774 if (id->driver_data) { /* Chip type is already known */
775 state->ident = id->driver_data;
776 } else { /* Needs detection */
777 int read_result;
778
779 /* Detect if it's an saa7129 */
627426c6
HV		 780 read_result = saa7127_read(sd, SAA7129_REG_FADE_KEY_COL2);
781 saa7127_write(sd, SAA7129_REG_FADE_KEY_COL2, 0xaa);
782 if (saa7127_read(sd, SAA7129_REG_FADE_KEY_COL2) == 0xaa) {
783 saa7127_write(sd, SAA7129_REG_FADE_KEY_COL2,
5daed074
JD		 784 read_result);
785 state->ident = V4L2_IDENT_SAA7129;
786 strlcpy(client->name, "saa7129", I2C_NAME_SIZE);
787 } else {
788 state->ident = V4L2_IDENT_SAA7127;
789 strlcpy(client->name, "saa7127", I2C_NAME_SIZE);
790 }
cfbb5b8c 791 }
5daed074 792
627426c6 793 v4l2_info(sd, "%s found @ 0x%x (%s)\n", client->name,
5daed074 794 client->addr << 1, client->adapter->name);
0f3559ef
MD		 795
796 v4l2_dbg(1, debug, sd, "Configuring encoder\n");
797 saa7127_write_inittab(sd, saa7127_init_config_common);
798 saa7127_set_std(sd, V4L2_STD_NTSC);
799 saa7127_set_output_type(sd, SAA7127_OUTPUT_TYPE_BOTH);
800 saa7127_set_vps(sd, &vbi);
801 saa7127_set_wss(sd, &vbi);
802 saa7127_set_cc(sd, &vbi);
803 saa7127_set_xds(sd, &vbi);
804 if (test_image == 1)
805 /* The Encoder has an internal Colorbar generator */
806 /* This can be used for debugging */
807 saa7127_set_input_type(sd, SAA7127_INPUT_TYPE_TEST_IMAGE);
808 else
809 saa7127_set_input_type(sd, SAA7127_INPUT_TYPE_NORMAL);
810 saa7127_set_video_enable(sd, 1);
811
5daed074 812 if (state->ident == V4L2_IDENT_SAA7129)
627426c6 813 saa7127_write_inittab(sd, saa7129_init_config_extra);
cfbb5b8c
HV		 814 return 0;
815}
816
817/* ----------------------------------------------------------------------- */
818
77566dd7 819static int saa7127_remove(struct i2c_client *client)
cfbb5b8c 820{
627426c6
HV		 821 struct v4l2_subdev *sd = i2c_get_clientdata(client);
822
823 v4l2_device_unregister_subdev(sd);
cfbb5b8c 824 /* Turn off TV output */
627426c6
HV		 825 saa7127_set_video_enable(sd, 0);
826 kfree(to_state(sd));
cfbb5b8c
HV		 827 return 0;
828}
829
830/* ----------------------------------------------------------------------- */
831
af294867 832static struct i2c_device_id saa7127_id[] = {
5daed074
JD		 833 { "saa7127_auto", 0 }, /* auto-detection */
834 { "saa7126", V4L2_IDENT_SAA7127 },
835 { "saa7127", V4L2_IDENT_SAA7127 },
836 { "saa7128", V4L2_IDENT_SAA7129 },
837 { "saa7129", V4L2_IDENT_SAA7129 },
af294867
JD		 838 { }
839};
840MODULE_DEVICE_TABLE(i2c, saa7127_id);
841
96209a20
HV		 842static struct i2c_driver saa7127_driver = {
843 .driver = {
844 .owner = THIS_MODULE,
845 .name = "saa7127",
846 },
847 .probe = saa7127_probe,
848 .remove = saa7127_remove,
849 .id_table = saa7127_id,
cfbb5b8c 850};
96209a20 851
c6e8d86f 852module_i2c_driver(saa7127_driver);
Linux kernel - Deliverables
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