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Commit | Line | Data |
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d56410e0 | 1 | /* |
1da177e4 LT |
2 | * bt819 - BT819A VideoStream Decoder (Rockwell Part) |
3 | * | |
4 | * Copyright (C) 1999 Mike Bernson <mike@mlb.org> | |
5 | * Copyright (C) 1998 Dave Perks <dperks@ibm.net> | |
6 | * | |
7 | * Modifications for LML33/DC10plus unified driver | |
8 | * Copyright (C) 2000 Serguei Miridonov <mirsev@cicese.mx> | |
d56410e0 | 9 | * |
1da177e4 LT |
10 | * Changes by Ronald Bultje <rbultje@ronald.bitfreak.net> |
11 | * - moved over to linux>=2.4.x i2c protocol (9/9/2002) | |
12 | * | |
13 | * This code was modify/ported from the saa7111 driver written | |
14 | * by Dave Perks. | |
15 | * | |
16 | * This program is free software; you can redistribute it and/or modify | |
17 | * it under the terms of the GNU General Public License as published by | |
18 | * the Free Software Foundation; either version 2 of the License, or | |
19 | * (at your option) any later version. | |
20 | * | |
21 | * This program is distributed in the hope that it will be useful, | |
22 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
23 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
24 | * GNU General Public License for more details. | |
25 | * | |
26 | * You should have received a copy of the GNU General Public License | |
27 | * along with this program; if not, write to the Free Software | |
28 | * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. | |
29 | */ | |
30 | ||
31 | #include <linux/module.h> | |
18f3fa1e | 32 | #include <linux/types.h> |
7fd011fb | 33 | #include <linux/ioctl.h> |
2883913c | 34 | #include <linux/delay.h> |
7fd011fb | 35 | #include <linux/i2c.h> |
c2179ad8 | 36 | #include <linux/videodev2.h> |
5a0e3ad6 | 37 | #include <linux/slab.h> |
c2179ad8 | 38 | #include <media/v4l2-device.h> |
bd84a65a | 39 | #include <media/v4l2-ctrls.h> |
b5dcee22 | 40 | #include <media/i2c/bt819.h> |
1da177e4 LT |
41 | |
42 | MODULE_DESCRIPTION("Brooktree-819 video decoder driver"); | |
43 | MODULE_AUTHOR("Mike Bernson & Dave Perks"); | |
44 | MODULE_LICENSE("GPL"); | |
45 | ||
ff699e6b | 46 | static int debug; |
1da177e4 LT |
47 | module_param(debug, int, 0); |
48 | MODULE_PARM_DESC(debug, "Debug level (0-1)"); | |
49 | ||
c2179ad8 | 50 | |
1da177e4 LT |
51 | /* ----------------------------------------------------------------------- */ |
52 | ||
53 | struct bt819 { | |
c2179ad8 | 54 | struct v4l2_subdev sd; |
bd84a65a | 55 | struct v4l2_ctrl_handler hdl; |
1da177e4 LT |
56 | unsigned char reg[32]; |
57 | ||
107063c6 | 58 | v4l2_std_id norm; |
1da177e4 LT |
59 | int input; |
60 | int enable; | |
1da177e4 LT |
61 | }; |
62 | ||
c2179ad8 HV |
63 | static inline struct bt819 *to_bt819(struct v4l2_subdev *sd) |
64 | { | |
65 | return container_of(sd, struct bt819, sd); | |
66 | } | |
67 | ||
bd84a65a HV |
68 | static inline struct v4l2_subdev *to_sd(struct v4l2_ctrl *ctrl) |
69 | { | |
70 | return &container_of(ctrl->handler, struct bt819, hdl)->sd; | |
71 | } | |
72 | ||
1da177e4 LT |
73 | struct timing { |
74 | int hactive; | |
75 | int hdelay; | |
76 | int vactive; | |
77 | int vdelay; | |
78 | int hscale; | |
79 | int vscale; | |
80 | }; | |
81 | ||
82 | /* for values, see the bt819 datasheet */ | |
83 | static struct timing timing_data[] = { | |
84 | {864 - 24, 20, 625 - 2, 1, 0x0504, 0x0000}, | |
85 | {858 - 24, 20, 525 - 2, 1, 0x00f8, 0x0000}, | |
86 | }; | |
87 | ||
1da177e4 LT |
88 | /* ----------------------------------------------------------------------- */ |
89 | ||
c2179ad8 | 90 | static inline int bt819_write(struct bt819 *decoder, u8 reg, u8 value) |
1da177e4 | 91 | { |
c2179ad8 | 92 | struct i2c_client *client = v4l2_get_subdevdata(&decoder->sd); |
1da177e4 LT |
93 | |
94 | decoder->reg[reg] = value; | |
95 | return i2c_smbus_write_byte_data(client, reg, value); | |
96 | } | |
97 | ||
c2179ad8 | 98 | static inline int bt819_setbit(struct bt819 *decoder, u8 reg, u8 bit, u8 value) |
1da177e4 | 99 | { |
c2179ad8 | 100 | return bt819_write(decoder, reg, |
7fd011fb | 101 | (decoder->reg[reg] & ~(1 << bit)) | (value ? (1 << bit) : 0)); |
1da177e4 LT |
102 | } |
103 | ||
c2179ad8 | 104 | static int bt819_write_block(struct bt819 *decoder, const u8 *data, unsigned int len) |
1da177e4 | 105 | { |
c2179ad8 | 106 | struct i2c_client *client = v4l2_get_subdevdata(&decoder->sd); |
1da177e4 LT |
107 | int ret = -1; |
108 | u8 reg; | |
109 | ||
110 | /* the bt819 has an autoincrement function, use it if | |
111 | * the adapter understands raw I2C */ | |
112 | if (i2c_check_functionality(client->adapter, I2C_FUNC_I2C)) { | |
113 | /* do raw I2C, not smbus compatible */ | |
1da177e4 | 114 | u8 block_data[32]; |
9aa45e34 | 115 | int block_len; |
1da177e4 | 116 | |
1da177e4 | 117 | while (len >= 2) { |
9aa45e34 JD |
118 | block_len = 0; |
119 | block_data[block_len++] = reg = data[0]; | |
1da177e4 | 120 | do { |
9aa45e34 | 121 | block_data[block_len++] = |
1da177e4 LT |
122 | decoder->reg[reg++] = data[1]; |
123 | len -= 2; | |
124 | data += 2; | |
7fd011fb HV |
125 | } while (len >= 2 && data[0] == reg && block_len < 32); |
126 | ret = i2c_master_send(client, block_data, block_len); | |
127 | if (ret < 0) | |
1da177e4 LT |
128 | break; |
129 | } | |
130 | } else { | |
131 | /* do some slow I2C emulation kind of thing */ | |
132 | while (len >= 2) { | |
133 | reg = *data++; | |
c2179ad8 HV |
134 | ret = bt819_write(decoder, reg, *data++); |
135 | if (ret < 0) | |
1da177e4 LT |
136 | break; |
137 | len -= 2; | |
138 | } | |
139 | } | |
140 | ||
141 | return ret; | |
142 | } | |
143 | ||
c2179ad8 | 144 | static inline int bt819_read(struct bt819 *decoder, u8 reg) |
1da177e4 | 145 | { |
c2179ad8 HV |
146 | struct i2c_client *client = v4l2_get_subdevdata(&decoder->sd); |
147 | ||
1da177e4 LT |
148 | return i2c_smbus_read_byte_data(client, reg); |
149 | } | |
150 | ||
c2179ad8 | 151 | static int bt819_init(struct v4l2_subdev *sd) |
1da177e4 | 152 | { |
1da177e4 | 153 | static unsigned char init[] = { |
7fd011fb | 154 | /*0x1f, 0x00,*/ /* Reset */ |
1da177e4 LT |
155 | 0x01, 0x59, /* 0x01 input format */ |
156 | 0x02, 0x00, /* 0x02 temporal decimation */ | |
157 | 0x03, 0x12, /* 0x03 Cropping msb */ | |
158 | 0x04, 0x16, /* 0x04 Vertical Delay, lsb */ | |
159 | 0x05, 0xe0, /* 0x05 Vertical Active lsb */ | |
160 | 0x06, 0x80, /* 0x06 Horizontal Delay lsb */ | |
161 | 0x07, 0xd0, /* 0x07 Horizontal Active lsb */ | |
162 | 0x08, 0x00, /* 0x08 Horizontal Scaling msb */ | |
163 | 0x09, 0xf8, /* 0x09 Horizontal Scaling lsb */ | |
164 | 0x0a, 0x00, /* 0x0a Brightness control */ | |
165 | 0x0b, 0x30, /* 0x0b Miscellaneous control */ | |
166 | 0x0c, 0xd8, /* 0x0c Luma Gain lsb */ | |
167 | 0x0d, 0xfe, /* 0x0d Chroma Gain (U) lsb */ | |
168 | 0x0e, 0xb4, /* 0x0e Chroma Gain (V) msb */ | |
169 | 0x0f, 0x00, /* 0x0f Hue control */ | |
170 | 0x12, 0x04, /* 0x12 Output Format */ | |
171 | 0x13, 0x20, /* 0x13 Vertial Scaling msb 0x00 | |
172 | chroma comb OFF, line drop scaling, interlace scaling | |
173 | BUG? Why does turning the chroma comb on fuck up color? | |
174 | Bug in the bt819 stepping on my board? | |
175 | */ | |
176 | 0x14, 0x00, /* 0x14 Vertial Scaling lsb */ | |
d56410e0 | 177 | 0x16, 0x07, /* 0x16 Video Timing Polarity |
1da177e4 | 178 | ACTIVE=active low |
d56410e0 | 179 | FIELD: high=odd, |
1da177e4 LT |
180 | vreset=active high, |
181 | hreset=active high */ | |
182 | 0x18, 0x68, /* 0x18 AGC Delay */ | |
183 | 0x19, 0x5d, /* 0x19 Burst Gate Delay */ | |
184 | 0x1a, 0x80, /* 0x1a ADC Interface */ | |
185 | }; | |
186 | ||
c2179ad8 | 187 | struct bt819 *decoder = to_bt819(sd); |
107063c6 | 188 | struct timing *timing = &timing_data[(decoder->norm & V4L2_STD_525_60) ? 1 : 0]; |
1da177e4 LT |
189 | |
190 | init[0x03 * 2 - 1] = | |
7fd011fb HV |
191 | (((timing->vdelay >> 8) & 0x03) << 6) | |
192 | (((timing->vactive >> 8) & 0x03) << 4) | | |
193 | (((timing->hdelay >> 8) & 0x03) << 2) | | |
194 | ((timing->hactive >> 8) & 0x03); | |
1da177e4 LT |
195 | init[0x04 * 2 - 1] = timing->vdelay & 0xff; |
196 | init[0x05 * 2 - 1] = timing->vactive & 0xff; | |
197 | init[0x06 * 2 - 1] = timing->hdelay & 0xff; | |
198 | init[0x07 * 2 - 1] = timing->hactive & 0xff; | |
199 | init[0x08 * 2 - 1] = timing->hscale >> 8; | |
200 | init[0x09 * 2 - 1] = timing->hscale & 0xff; | |
201 | /* 0x15 in array is address 0x19 */ | |
107063c6 | 202 | init[0x15 * 2 - 1] = (decoder->norm & V4L2_STD_625_50) ? 115 : 93; /* Chroma burst delay */ |
1da177e4 | 203 | /* reset */ |
c2179ad8 | 204 | bt819_write(decoder, 0x1f, 0x00); |
1da177e4 LT |
205 | mdelay(1); |
206 | ||
207 | /* init */ | |
c2179ad8 | 208 | return bt819_write_block(decoder, init, sizeof(init)); |
1da177e4 LT |
209 | } |
210 | ||
211 | /* ----------------------------------------------------------------------- */ | |
212 | ||
c2179ad8 | 213 | static int bt819_status(struct v4l2_subdev *sd, u32 *pstatus, v4l2_std_id *pstd) |
1da177e4 | 214 | { |
c2179ad8 HV |
215 | struct bt819 *decoder = to_bt819(sd); |
216 | int status = bt819_read(decoder, 0x00); | |
217 | int res = V4L2_IN_ST_NO_SIGNAL; | |
ddc7f72a | 218 | v4l2_std_id std = pstd ? *pstd : V4L2_STD_ALL; |
c2179ad8 HV |
219 | |
220 | if ((status & 0x80)) | |
221 | res = 0; | |
ddc7f72a HV |
222 | else |
223 | std = V4L2_STD_UNKNOWN; | |
c2179ad8 HV |
224 | |
225 | if ((status & 0x10)) | |
ddc7f72a | 226 | std &= V4L2_STD_PAL; |
c2179ad8 | 227 | else |
ddc7f72a | 228 | std &= V4L2_STD_NTSC; |
c2179ad8 HV |
229 | if (pstd) |
230 | *pstd = std; | |
231 | if (pstatus) | |
ba08831b | 232 | *pstatus = res; |
c2179ad8 HV |
233 | |
234 | v4l2_dbg(1, debug, sd, "get status %x\n", status); | |
235 | return 0; | |
236 | } | |
1da177e4 | 237 | |
c2179ad8 HV |
238 | static int bt819_querystd(struct v4l2_subdev *sd, v4l2_std_id *std) |
239 | { | |
240 | return bt819_status(sd, NULL, std); | |
241 | } | |
1da177e4 | 242 | |
c2179ad8 HV |
243 | static int bt819_g_input_status(struct v4l2_subdev *sd, u32 *status) |
244 | { | |
245 | return bt819_status(sd, status, NULL); | |
246 | } | |
247 | ||
248 | static int bt819_s_std(struct v4l2_subdev *sd, v4l2_std_id std) | |
249 | { | |
250 | struct bt819 *decoder = to_bt819(sd); | |
251 | struct timing *timing = NULL; | |
252 | ||
cc5cef8e | 253 | v4l2_dbg(1, debug, sd, "set norm %llx\n", (unsigned long long)std); |
c2179ad8 | 254 | |
1cd3c0fa HV |
255 | if (sd->v4l2_dev == NULL || sd->v4l2_dev->notify == NULL) |
256 | v4l2_err(sd, "no notify found!\n"); | |
257 | ||
c2179ad8 | 258 | if (std & V4L2_STD_NTSC) { |
b9fb9b79 | 259 | v4l2_subdev_notify(sd, BT819_FIFO_RESET_LOW, NULL); |
c2179ad8 HV |
260 | bt819_setbit(decoder, 0x01, 0, 1); |
261 | bt819_setbit(decoder, 0x01, 1, 0); | |
262 | bt819_setbit(decoder, 0x01, 5, 0); | |
263 | bt819_write(decoder, 0x18, 0x68); | |
264 | bt819_write(decoder, 0x19, 0x5d); | |
265 | /* bt819_setbit(decoder, 0x1a, 5, 1); */ | |
266 | timing = &timing_data[1]; | |
267 | } else if (std & V4L2_STD_PAL) { | |
b9fb9b79 | 268 | v4l2_subdev_notify(sd, BT819_FIFO_RESET_LOW, NULL); |
c2179ad8 HV |
269 | bt819_setbit(decoder, 0x01, 0, 1); |
270 | bt819_setbit(decoder, 0x01, 1, 1); | |
271 | bt819_setbit(decoder, 0x01, 5, 1); | |
272 | bt819_write(decoder, 0x18, 0x7f); | |
273 | bt819_write(decoder, 0x19, 0x72); | |
274 | /* bt819_setbit(decoder, 0x1a, 5, 0); */ | |
275 | timing = &timing_data[0]; | |
276 | } else { | |
cc5cef8e HV |
277 | v4l2_dbg(1, debug, sd, "unsupported norm %llx\n", |
278 | (unsigned long long)std); | |
c2179ad8 | 279 | return -EINVAL; |
1da177e4 | 280 | } |
c2179ad8 HV |
281 | bt819_write(decoder, 0x03, |
282 | (((timing->vdelay >> 8) & 0x03) << 6) | | |
283 | (((timing->vactive >> 8) & 0x03) << 4) | | |
284 | (((timing->hdelay >> 8) & 0x03) << 2) | | |
285 | ((timing->hactive >> 8) & 0x03)); | |
286 | bt819_write(decoder, 0x04, timing->vdelay & 0xff); | |
287 | bt819_write(decoder, 0x05, timing->vactive & 0xff); | |
288 | bt819_write(decoder, 0x06, timing->hdelay & 0xff); | |
289 | bt819_write(decoder, 0x07, timing->hactive & 0xff); | |
290 | bt819_write(decoder, 0x08, (timing->hscale >> 8) & 0xff); | |
291 | bt819_write(decoder, 0x09, timing->hscale & 0xff); | |
292 | decoder->norm = std; | |
b9fb9b79 | 293 | v4l2_subdev_notify(sd, BT819_FIFO_RESET_HIGH, NULL); |
c2179ad8 HV |
294 | return 0; |
295 | } | |
1da177e4 | 296 | |
5325b427 HV |
297 | static int bt819_s_routing(struct v4l2_subdev *sd, |
298 | u32 input, u32 output, u32 config) | |
c2179ad8 HV |
299 | { |
300 | struct bt819 *decoder = to_bt819(sd); | |
1da177e4 | 301 | |
5325b427 | 302 | v4l2_dbg(1, debug, sd, "set input %x\n", input); |
1da177e4 | 303 | |
f14a2972 | 304 | if (input > 7) |
c2179ad8 | 305 | return -EINVAL; |
1da177e4 | 306 | |
1cd3c0fa HV |
307 | if (sd->v4l2_dev == NULL || sd->v4l2_dev->notify == NULL) |
308 | v4l2_err(sd, "no notify found!\n"); | |
309 | ||
5325b427 | 310 | if (decoder->input != input) { |
b9fb9b79 | 311 | v4l2_subdev_notify(sd, BT819_FIFO_RESET_LOW, NULL); |
5325b427 | 312 | decoder->input = input; |
c2179ad8 HV |
313 | /* select mode */ |
314 | if (decoder->input == 0) { | |
315 | bt819_setbit(decoder, 0x0b, 6, 0); | |
316 | bt819_setbit(decoder, 0x1a, 1, 1); | |
317 | } else { | |
318 | bt819_setbit(decoder, 0x0b, 6, 1); | |
319 | bt819_setbit(decoder, 0x1a, 1, 0); | |
1da177e4 | 320 | } |
b9fb9b79 | 321 | v4l2_subdev_notify(sd, BT819_FIFO_RESET_HIGH, NULL); |
7fd011fb | 322 | } |
c2179ad8 HV |
323 | return 0; |
324 | } | |
1da177e4 | 325 | |
c2179ad8 HV |
326 | static int bt819_s_stream(struct v4l2_subdev *sd, int enable) |
327 | { | |
328 | struct bt819 *decoder = to_bt819(sd); | |
1da177e4 | 329 | |
c2179ad8 | 330 | v4l2_dbg(1, debug, sd, "enable output %x\n", enable); |
1da177e4 | 331 | |
c2179ad8 HV |
332 | if (decoder->enable != enable) { |
333 | decoder->enable = enable; | |
334 | bt819_setbit(decoder, 0x16, 7, !enable); | |
7fd011fb | 335 | } |
c2179ad8 HV |
336 | return 0; |
337 | } | |
1da177e4 | 338 | |
bd84a65a | 339 | static int bt819_s_ctrl(struct v4l2_ctrl *ctrl) |
c2179ad8 | 340 | { |
bd84a65a | 341 | struct v4l2_subdev *sd = to_sd(ctrl); |
c2179ad8 HV |
342 | struct bt819 *decoder = to_bt819(sd); |
343 | int temp; | |
1da177e4 | 344 | |
c2179ad8 HV |
345 | switch (ctrl->id) { |
346 | case V4L2_CID_BRIGHTNESS: | |
bd84a65a | 347 | bt819_write(decoder, 0x0a, ctrl->val); |
c2179ad8 | 348 | break; |
1da177e4 | 349 | |
c2179ad8 | 350 | case V4L2_CID_CONTRAST: |
bd84a65a HV |
351 | bt819_write(decoder, 0x0c, ctrl->val & 0xff); |
352 | bt819_setbit(decoder, 0x0b, 2, ((ctrl->val >> 8) & 0x01)); | |
c2179ad8 | 353 | break; |
1da177e4 | 354 | |
c2179ad8 | 355 | case V4L2_CID_SATURATION: |
bd84a65a HV |
356 | bt819_write(decoder, 0x0d, (ctrl->val >> 7) & 0xff); |
357 | bt819_setbit(decoder, 0x0b, 1, ((ctrl->val >> 15) & 0x01)); | |
c2179ad8 HV |
358 | |
359 | /* Ratio between U gain and V gain must stay the same as | |
360 | the ratio between the default U and V gain values. */ | |
bd84a65a | 361 | temp = (ctrl->val * 180) / 254; |
c2179ad8 HV |
362 | bt819_write(decoder, 0x0e, (temp >> 7) & 0xff); |
363 | bt819_setbit(decoder, 0x0b, 0, (temp >> 15) & 0x01); | |
364 | break; | |
1da177e4 | 365 | |
c2179ad8 | 366 | case V4L2_CID_HUE: |
bd84a65a | 367 | bt819_write(decoder, 0x0f, ctrl->val); |
107063c6 | 368 | break; |
c2179ad8 HV |
369 | |
370 | default: | |
371 | return -EINVAL; | |
107063c6 | 372 | } |
c2179ad8 HV |
373 | return 0; |
374 | } | |
1da177e4 | 375 | |
1da177e4 LT |
376 | /* ----------------------------------------------------------------------- */ |
377 | ||
bd84a65a HV |
378 | static const struct v4l2_ctrl_ops bt819_ctrl_ops = { |
379 | .s_ctrl = bt819_s_ctrl, | |
380 | }; | |
381 | ||
c2179ad8 | 382 | static const struct v4l2_subdev_video_ops bt819_video_ops = { |
8774bed9 | 383 | .s_std = bt819_s_std, |
c2179ad8 HV |
384 | .s_routing = bt819_s_routing, |
385 | .s_stream = bt819_s_stream, | |
386 | .querystd = bt819_querystd, | |
387 | .g_input_status = bt819_g_input_status, | |
388 | }; | |
389 | ||
390 | static const struct v4l2_subdev_ops bt819_ops = { | |
c2179ad8 HV |
391 | .video = &bt819_video_ops, |
392 | }; | |
393 | ||
394 | /* ----------------------------------------------------------------------- */ | |
1da177e4 | 395 | |
7fd011fb HV |
396 | static int bt819_probe(struct i2c_client *client, |
397 | const struct i2c_device_id *id) | |
1da177e4 | 398 | { |
7fd011fb | 399 | int i, ver; |
1da177e4 | 400 | struct bt819 *decoder; |
c2179ad8 | 401 | struct v4l2_subdev *sd; |
7fd011fb | 402 | const char *name; |
1da177e4 LT |
403 | |
404 | /* Check if the adapter supports the needed features */ | |
7fd011fb HV |
405 | if (!i2c_check_functionality(client->adapter, I2C_FUNC_SMBUS_BYTE_DATA)) |
406 | return -ENODEV; | |
1da177e4 | 407 | |
c02b211d | 408 | decoder = devm_kzalloc(&client->dev, sizeof(*decoder), GFP_KERNEL); |
c2179ad8 HV |
409 | if (decoder == NULL) |
410 | return -ENOMEM; | |
411 | sd = &decoder->sd; | |
412 | v4l2_i2c_subdev_init(sd, client, &bt819_ops); | |
413 | ||
414 | ver = bt819_read(decoder, 0x17); | |
7fd011fb HV |
415 | switch (ver & 0xf0) { |
416 | case 0x70: | |
417 | name = "bt819a"; | |
418 | break; | |
419 | case 0x60: | |
420 | name = "bt817a"; | |
421 | break; | |
422 | case 0x20: | |
423 | name = "bt815a"; | |
424 | break; | |
425 | default: | |
c2179ad8 | 426 | v4l2_dbg(1, debug, sd, |
7fd011fb HV |
427 | "unknown chip version 0x%02x\n", ver); |
428 | return -ENODEV; | |
429 | } | |
430 | ||
431 | v4l_info(client, "%s found @ 0x%x (%s)\n", name, | |
432 | client->addr << 1, client->adapter->name); | |
1da177e4 | 433 | |
107063c6 | 434 | decoder->norm = V4L2_STD_NTSC; |
1da177e4 LT |
435 | decoder->input = 0; |
436 | decoder->enable = 1; | |
1da177e4 | 437 | |
c2179ad8 | 438 | i = bt819_init(sd); |
7fd011fb | 439 | if (i < 0) |
c2179ad8 | 440 | v4l2_dbg(1, debug, sd, "init status %d\n", i); |
bd84a65a HV |
441 | |
442 | v4l2_ctrl_handler_init(&decoder->hdl, 4); | |
443 | v4l2_ctrl_new_std(&decoder->hdl, &bt819_ctrl_ops, | |
444 | V4L2_CID_BRIGHTNESS, -128, 127, 1, 0); | |
445 | v4l2_ctrl_new_std(&decoder->hdl, &bt819_ctrl_ops, | |
446 | V4L2_CID_CONTRAST, 0, 511, 1, 0xd8); | |
447 | v4l2_ctrl_new_std(&decoder->hdl, &bt819_ctrl_ops, | |
448 | V4L2_CID_SATURATION, 0, 511, 1, 0xfe); | |
449 | v4l2_ctrl_new_std(&decoder->hdl, &bt819_ctrl_ops, | |
450 | V4L2_CID_HUE, -128, 127, 1, 0); | |
451 | sd->ctrl_handler = &decoder->hdl; | |
452 | if (decoder->hdl.error) { | |
453 | int err = decoder->hdl.error; | |
454 | ||
455 | v4l2_ctrl_handler_free(&decoder->hdl); | |
bd84a65a HV |
456 | return err; |
457 | } | |
458 | v4l2_ctrl_handler_setup(&decoder->hdl); | |
1da177e4 LT |
459 | return 0; |
460 | } | |
461 | ||
7fd011fb | 462 | static int bt819_remove(struct i2c_client *client) |
1da177e4 | 463 | { |
c2179ad8 | 464 | struct v4l2_subdev *sd = i2c_get_clientdata(client); |
bd84a65a | 465 | struct bt819 *decoder = to_bt819(sd); |
c2179ad8 HV |
466 | |
467 | v4l2_device_unregister_subdev(sd); | |
bd84a65a | 468 | v4l2_ctrl_handler_free(&decoder->hdl); |
1da177e4 LT |
469 | return 0; |
470 | } | |
471 | ||
472 | /* ----------------------------------------------------------------------- */ | |
473 | ||
7fd011fb HV |
474 | static const struct i2c_device_id bt819_id[] = { |
475 | { "bt819a", 0 }, | |
476 | { "bt817a", 0 }, | |
477 | { "bt815a", 0 }, | |
478 | { } | |
479 | }; | |
480 | MODULE_DEVICE_TABLE(i2c, bt819_id); | |
1da177e4 | 481 | |
00cc8db8 HV |
482 | static struct i2c_driver bt819_driver = { |
483 | .driver = { | |
00cc8db8 HV |
484 | .name = "bt819", |
485 | }, | |
486 | .probe = bt819_probe, | |
487 | .remove = bt819_remove, | |
488 | .id_table = bt819_id, | |
1da177e4 | 489 | }; |
00cc8db8 | 490 | |
c6e8d86f | 491 | module_i2c_driver(bt819_driver); |