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202ea1f0 SJ |
1 | /* |
2 | * adv7183.c Analog Devices ADV7183 video decoder driver | |
3 | * | |
4 | * Copyright (c) 2011 Analog Devices Inc. | |
5 | * | |
6 | * This program is free software; you can redistribute it and/or modify | |
7 | * it under the terms of the GNU General Public License version 2 as | |
8 | * published by the Free Software Foundation. | |
9 | * | |
10 | * This program is distributed in the hope that it will be useful, | |
11 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
12 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
13 | * GNU General Public License for more details. | |
14 | * | |
15 | * You should have received a copy of the GNU General Public License | |
16 | * along with this program; if not, write to the Free Software | |
17 | * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. | |
18 | */ | |
19 | ||
20 | #include <linux/delay.h> | |
21 | #include <linux/errno.h> | |
22 | #include <linux/gpio.h> | |
23 | #include <linux/i2c.h> | |
24 | #include <linux/init.h> | |
25 | #include <linux/module.h> | |
26 | #include <linux/slab.h> | |
27 | #include <linux/types.h> | |
28 | #include <linux/videodev2.h> | |
29 | ||
30 | #include <media/adv7183.h> | |
202ea1f0 SJ |
31 | #include <media/v4l2-ctrls.h> |
32 | #include <media/v4l2-device.h> | |
33 | ||
34 | #include "adv7183_regs.h" | |
35 | ||
36 | struct adv7183 { | |
37 | struct v4l2_subdev sd; | |
38 | struct v4l2_ctrl_handler hdl; | |
39 | ||
40 | v4l2_std_id std; /* Current set standard */ | |
41 | u32 input; | |
42 | u32 output; | |
43 | unsigned reset_pin; | |
44 | unsigned oe_pin; | |
45 | struct v4l2_mbus_framefmt fmt; | |
46 | }; | |
47 | ||
48 | /* EXAMPLES USING 27 MHz CLOCK | |
49 | * Mode 1 CVBS Input (Composite Video on AIN5) | |
50 | * All standards are supported through autodetect, 8-bit, 4:2:2, ITU-R BT.656 output on P15 to P8. | |
51 | */ | |
52 | static const unsigned char adv7183_init_regs[] = { | |
53 | ADV7183_IN_CTRL, 0x04, /* CVBS input on AIN5 */ | |
54 | ADV7183_DIGI_CLAMP_CTRL_1, 0x00, /* Slow down digital clamps */ | |
55 | ADV7183_SHAP_FILT_CTRL, 0x41, /* Set CSFM to SH1 */ | |
56 | ADV7183_ADC_CTRL, 0x16, /* Power down ADC 1 and ADC 2 */ | |
57 | ADV7183_CTI_DNR_CTRL_4, 0x04, /* Set DNR threshold to 4 for flat response */ | |
58 | /* ADI recommended programming sequence */ | |
59 | ADV7183_ADI_CTRL, 0x80, | |
60 | ADV7183_CTI_DNR_CTRL_4, 0x20, | |
61 | 0x52, 0x18, | |
62 | 0x58, 0xED, | |
63 | 0x77, 0xC5, | |
64 | 0x7C, 0x93, | |
65 | 0x7D, 0x00, | |
66 | 0xD0, 0x48, | |
67 | 0xD5, 0xA0, | |
68 | 0xD7, 0xEA, | |
69 | ADV7183_SD_SATURATION_CR, 0x3E, | |
70 | ADV7183_PAL_V_END, 0x3E, | |
71 | ADV7183_PAL_F_TOGGLE, 0x0F, | |
72 | ADV7183_ADI_CTRL, 0x00, | |
73 | }; | |
74 | ||
75 | static inline struct adv7183 *to_adv7183(struct v4l2_subdev *sd) | |
76 | { | |
77 | return container_of(sd, struct adv7183, sd); | |
78 | } | |
79 | static inline struct v4l2_subdev *to_sd(struct v4l2_ctrl *ctrl) | |
80 | { | |
81 | return &container_of(ctrl->handler, struct adv7183, hdl)->sd; | |
82 | } | |
83 | ||
84 | static inline int adv7183_read(struct v4l2_subdev *sd, unsigned char reg) | |
85 | { | |
86 | struct i2c_client *client = v4l2_get_subdevdata(sd); | |
87 | ||
88 | return i2c_smbus_read_byte_data(client, reg); | |
89 | } | |
90 | ||
91 | static inline int adv7183_write(struct v4l2_subdev *sd, unsigned char reg, | |
92 | unsigned char value) | |
93 | { | |
94 | struct i2c_client *client = v4l2_get_subdevdata(sd); | |
95 | ||
96 | return i2c_smbus_write_byte_data(client, reg, value); | |
97 | } | |
98 | ||
99 | static int adv7183_writeregs(struct v4l2_subdev *sd, | |
100 | const unsigned char *regs, unsigned int num) | |
101 | { | |
102 | unsigned char reg, data; | |
103 | unsigned int cnt = 0; | |
104 | ||
105 | if (num & 0x1) { | |
106 | v4l2_err(sd, "invalid regs array\n"); | |
107 | return -1; | |
108 | } | |
109 | ||
110 | while (cnt < num) { | |
111 | reg = *regs++; | |
112 | data = *regs++; | |
113 | cnt += 2; | |
114 | ||
115 | adv7183_write(sd, reg, data); | |
116 | } | |
117 | return 0; | |
118 | } | |
119 | ||
120 | static int adv7183_log_status(struct v4l2_subdev *sd) | |
121 | { | |
122 | struct adv7183 *decoder = to_adv7183(sd); | |
123 | ||
124 | v4l2_info(sd, "adv7183: Input control = 0x%02x\n", | |
125 | adv7183_read(sd, ADV7183_IN_CTRL)); | |
126 | v4l2_info(sd, "adv7183: Video selection = 0x%02x\n", | |
127 | adv7183_read(sd, ADV7183_VD_SEL)); | |
128 | v4l2_info(sd, "adv7183: Output control = 0x%02x\n", | |
129 | adv7183_read(sd, ADV7183_OUT_CTRL)); | |
130 | v4l2_info(sd, "adv7183: Extended output control = 0x%02x\n", | |
131 | adv7183_read(sd, ADV7183_EXT_OUT_CTRL)); | |
132 | v4l2_info(sd, "adv7183: Autodetect enable = 0x%02x\n", | |
133 | adv7183_read(sd, ADV7183_AUTO_DET_EN)); | |
134 | v4l2_info(sd, "adv7183: Contrast = 0x%02x\n", | |
135 | adv7183_read(sd, ADV7183_CONTRAST)); | |
136 | v4l2_info(sd, "adv7183: Brightness = 0x%02x\n", | |
137 | adv7183_read(sd, ADV7183_BRIGHTNESS)); | |
138 | v4l2_info(sd, "adv7183: Hue = 0x%02x\n", | |
139 | adv7183_read(sd, ADV7183_HUE)); | |
140 | v4l2_info(sd, "adv7183: Default value Y = 0x%02x\n", | |
141 | adv7183_read(sd, ADV7183_DEF_Y)); | |
142 | v4l2_info(sd, "adv7183: Default value C = 0x%02x\n", | |
143 | adv7183_read(sd, ADV7183_DEF_C)); | |
144 | v4l2_info(sd, "adv7183: ADI control = 0x%02x\n", | |
145 | adv7183_read(sd, ADV7183_ADI_CTRL)); | |
146 | v4l2_info(sd, "adv7183: Power Management = 0x%02x\n", | |
147 | adv7183_read(sd, ADV7183_POW_MANAGE)); | |
148 | v4l2_info(sd, "adv7183: Status 1 2 and 3 = 0x%02x 0x%02x 0x%02x\n", | |
149 | adv7183_read(sd, ADV7183_STATUS_1), | |
150 | adv7183_read(sd, ADV7183_STATUS_2), | |
151 | adv7183_read(sd, ADV7183_STATUS_3)); | |
152 | v4l2_info(sd, "adv7183: Ident = 0x%02x\n", | |
153 | adv7183_read(sd, ADV7183_IDENT)); | |
154 | v4l2_info(sd, "adv7183: Analog clamp control = 0x%02x\n", | |
155 | adv7183_read(sd, ADV7183_ANAL_CLAMP_CTRL)); | |
156 | v4l2_info(sd, "adv7183: Digital clamp control 1 = 0x%02x\n", | |
157 | adv7183_read(sd, ADV7183_DIGI_CLAMP_CTRL_1)); | |
158 | v4l2_info(sd, "adv7183: Shaping filter control 1 and 2 = 0x%02x 0x%02x\n", | |
159 | adv7183_read(sd, ADV7183_SHAP_FILT_CTRL), | |
160 | adv7183_read(sd, ADV7183_SHAP_FILT_CTRL_2)); | |
161 | v4l2_info(sd, "adv7183: Comb filter control = 0x%02x\n", | |
162 | adv7183_read(sd, ADV7183_COMB_FILT_CTRL)); | |
163 | v4l2_info(sd, "adv7183: ADI control 2 = 0x%02x\n", | |
164 | adv7183_read(sd, ADV7183_ADI_CTRL_2)); | |
165 | v4l2_info(sd, "adv7183: Pixel delay control = 0x%02x\n", | |
166 | adv7183_read(sd, ADV7183_PIX_DELAY_CTRL)); | |
167 | v4l2_info(sd, "adv7183: Misc gain control = 0x%02x\n", | |
168 | adv7183_read(sd, ADV7183_MISC_GAIN_CTRL)); | |
169 | v4l2_info(sd, "adv7183: AGC mode control = 0x%02x\n", | |
170 | adv7183_read(sd, ADV7183_AGC_MODE_CTRL)); | |
171 | v4l2_info(sd, "adv7183: Chroma gain control 1 and 2 = 0x%02x 0x%02x\n", | |
172 | adv7183_read(sd, ADV7183_CHRO_GAIN_CTRL_1), | |
173 | adv7183_read(sd, ADV7183_CHRO_GAIN_CTRL_2)); | |
174 | v4l2_info(sd, "adv7183: Luma gain control 1 and 2 = 0x%02x 0x%02x\n", | |
175 | adv7183_read(sd, ADV7183_LUMA_GAIN_CTRL_1), | |
176 | adv7183_read(sd, ADV7183_LUMA_GAIN_CTRL_2)); | |
177 | v4l2_info(sd, "adv7183: Vsync field control 1 2 and 3 = 0x%02x 0x%02x 0x%02x\n", | |
178 | adv7183_read(sd, ADV7183_VS_FIELD_CTRL_1), | |
179 | adv7183_read(sd, ADV7183_VS_FIELD_CTRL_2), | |
180 | adv7183_read(sd, ADV7183_VS_FIELD_CTRL_3)); | |
181 | v4l2_info(sd, "adv7183: Hsync positon control 1 2 and 3 = 0x%02x 0x%02x 0x%02x\n", | |
182 | adv7183_read(sd, ADV7183_HS_POS_CTRL_1), | |
183 | adv7183_read(sd, ADV7183_HS_POS_CTRL_2), | |
184 | adv7183_read(sd, ADV7183_HS_POS_CTRL_3)); | |
185 | v4l2_info(sd, "adv7183: Polarity = 0x%02x\n", | |
186 | adv7183_read(sd, ADV7183_POLARITY)); | |
187 | v4l2_info(sd, "adv7183: ADC control = 0x%02x\n", | |
188 | adv7183_read(sd, ADV7183_ADC_CTRL)); | |
189 | v4l2_info(sd, "adv7183: SD offset Cb and Cr = 0x%02x 0x%02x\n", | |
190 | adv7183_read(sd, ADV7183_SD_OFFSET_CB), | |
191 | adv7183_read(sd, ADV7183_SD_OFFSET_CR)); | |
192 | v4l2_info(sd, "adv7183: SD saturation Cb and Cr = 0x%02x 0x%02x\n", | |
193 | adv7183_read(sd, ADV7183_SD_SATURATION_CB), | |
194 | adv7183_read(sd, ADV7183_SD_SATURATION_CR)); | |
195 | v4l2_info(sd, "adv7183: Drive strength = 0x%02x\n", | |
196 | adv7183_read(sd, ADV7183_DRIVE_STR)); | |
197 | v4l2_ctrl_handler_log_status(&decoder->hdl, sd->name); | |
198 | return 0; | |
199 | } | |
200 | ||
201 | static int adv7183_g_std(struct v4l2_subdev *sd, v4l2_std_id *std) | |
202 | { | |
203 | struct adv7183 *decoder = to_adv7183(sd); | |
204 | ||
205 | *std = decoder->std; | |
206 | return 0; | |
207 | } | |
208 | ||
209 | static int adv7183_s_std(struct v4l2_subdev *sd, v4l2_std_id std) | |
210 | { | |
211 | struct adv7183 *decoder = to_adv7183(sd); | |
212 | int reg; | |
213 | ||
214 | reg = adv7183_read(sd, ADV7183_IN_CTRL) & 0xF; | |
215 | if (std == V4L2_STD_PAL_60) | |
216 | reg |= 0x60; | |
217 | else if (std == V4L2_STD_NTSC_443) | |
218 | reg |= 0x70; | |
219 | else if (std == V4L2_STD_PAL_N) | |
220 | reg |= 0x90; | |
221 | else if (std == V4L2_STD_PAL_M) | |
222 | reg |= 0xA0; | |
223 | else if (std == V4L2_STD_PAL_Nc) | |
224 | reg |= 0xC0; | |
225 | else if (std & V4L2_STD_PAL) | |
226 | reg |= 0x80; | |
227 | else if (std & V4L2_STD_NTSC) | |
228 | reg |= 0x50; | |
229 | else if (std & V4L2_STD_SECAM) | |
230 | reg |= 0xE0; | |
231 | else | |
232 | return -EINVAL; | |
233 | adv7183_write(sd, ADV7183_IN_CTRL, reg); | |
234 | ||
235 | decoder->std = std; | |
236 | ||
237 | return 0; | |
238 | } | |
239 | ||
240 | static int adv7183_reset(struct v4l2_subdev *sd, u32 val) | |
241 | { | |
242 | int reg; | |
243 | ||
244 | reg = adv7183_read(sd, ADV7183_POW_MANAGE) | 0x80; | |
245 | adv7183_write(sd, ADV7183_POW_MANAGE, reg); | |
246 | /* wait 5ms before any further i2c writes are performed */ | |
247 | usleep_range(5000, 10000); | |
248 | return 0; | |
249 | } | |
250 | ||
251 | static int adv7183_s_routing(struct v4l2_subdev *sd, | |
252 | u32 input, u32 output, u32 config) | |
253 | { | |
254 | struct adv7183 *decoder = to_adv7183(sd); | |
255 | int reg; | |
256 | ||
257 | if ((input > ADV7183_COMPONENT1) || (output > ADV7183_16BIT_OUT)) | |
258 | return -EINVAL; | |
259 | ||
260 | if (input != decoder->input) { | |
261 | decoder->input = input; | |
262 | reg = adv7183_read(sd, ADV7183_IN_CTRL) & 0xF0; | |
263 | switch (input) { | |
264 | case ADV7183_COMPOSITE1: | |
265 | reg |= 0x1; | |
266 | break; | |
267 | case ADV7183_COMPOSITE2: | |
268 | reg |= 0x2; | |
269 | break; | |
270 | case ADV7183_COMPOSITE3: | |
271 | reg |= 0x3; | |
272 | break; | |
273 | case ADV7183_COMPOSITE4: | |
274 | reg |= 0x4; | |
275 | break; | |
276 | case ADV7183_COMPOSITE5: | |
277 | reg |= 0x5; | |
278 | break; | |
279 | case ADV7183_COMPOSITE6: | |
280 | reg |= 0xB; | |
281 | break; | |
282 | case ADV7183_COMPOSITE7: | |
283 | reg |= 0xC; | |
284 | break; | |
285 | case ADV7183_COMPOSITE8: | |
286 | reg |= 0xD; | |
287 | break; | |
288 | case ADV7183_COMPOSITE9: | |
289 | reg |= 0xE; | |
290 | break; | |
291 | case ADV7183_COMPOSITE10: | |
292 | reg |= 0xF; | |
293 | break; | |
294 | case ADV7183_SVIDEO0: | |
295 | reg |= 0x6; | |
296 | break; | |
297 | case ADV7183_SVIDEO1: | |
298 | reg |= 0x7; | |
299 | break; | |
300 | case ADV7183_SVIDEO2: | |
301 | reg |= 0x8; | |
302 | break; | |
303 | case ADV7183_COMPONENT0: | |
304 | reg |= 0x9; | |
305 | break; | |
306 | case ADV7183_COMPONENT1: | |
307 | reg |= 0xA; | |
308 | break; | |
309 | default: | |
310 | break; | |
311 | } | |
312 | adv7183_write(sd, ADV7183_IN_CTRL, reg); | |
313 | } | |
314 | ||
315 | if (output != decoder->output) { | |
316 | decoder->output = output; | |
317 | reg = adv7183_read(sd, ADV7183_OUT_CTRL) & 0xC0; | |
318 | switch (output) { | |
319 | case ADV7183_16BIT_OUT: | |
320 | reg |= 0x9; | |
321 | break; | |
322 | default: | |
323 | reg |= 0xC; | |
324 | break; | |
325 | } | |
326 | adv7183_write(sd, ADV7183_OUT_CTRL, reg); | |
327 | } | |
328 | ||
329 | return 0; | |
330 | } | |
331 | ||
332 | static int adv7183_s_ctrl(struct v4l2_ctrl *ctrl) | |
333 | { | |
334 | struct v4l2_subdev *sd = to_sd(ctrl); | |
335 | int val = ctrl->val; | |
336 | ||
337 | switch (ctrl->id) { | |
338 | case V4L2_CID_BRIGHTNESS: | |
339 | if (val < 0) | |
340 | val = 127 - val; | |
341 | adv7183_write(sd, ADV7183_BRIGHTNESS, val); | |
342 | break; | |
343 | case V4L2_CID_CONTRAST: | |
344 | adv7183_write(sd, ADV7183_CONTRAST, val); | |
345 | break; | |
346 | case V4L2_CID_SATURATION: | |
347 | adv7183_write(sd, ADV7183_SD_SATURATION_CB, val >> 8); | |
348 | adv7183_write(sd, ADV7183_SD_SATURATION_CR, (val & 0xFF)); | |
349 | break; | |
350 | case V4L2_CID_HUE: | |
351 | adv7183_write(sd, ADV7183_SD_OFFSET_CB, val >> 8); | |
352 | adv7183_write(sd, ADV7183_SD_OFFSET_CR, (val & 0xFF)); | |
353 | break; | |
354 | default: | |
355 | return -EINVAL; | |
356 | } | |
357 | ||
358 | return 0; | |
359 | } | |
360 | ||
361 | static int adv7183_querystd(struct v4l2_subdev *sd, v4l2_std_id *std) | |
362 | { | |
363 | struct adv7183 *decoder = to_adv7183(sd); | |
364 | int reg; | |
365 | ||
366 | /* enable autodetection block */ | |
367 | reg = adv7183_read(sd, ADV7183_IN_CTRL) & 0xF; | |
368 | adv7183_write(sd, ADV7183_IN_CTRL, reg); | |
369 | ||
370 | /* wait autodetection switch */ | |
371 | mdelay(10); | |
372 | ||
373 | /* get autodetection result */ | |
374 | reg = adv7183_read(sd, ADV7183_STATUS_1); | |
375 | switch ((reg >> 0x4) & 0x7) { | |
376 | case 0: | |
377 | *std = V4L2_STD_NTSC; | |
378 | break; | |
379 | case 1: | |
380 | *std = V4L2_STD_NTSC_443; | |
381 | break; | |
382 | case 2: | |
383 | *std = V4L2_STD_PAL_M; | |
384 | break; | |
385 | case 3: | |
386 | *std = V4L2_STD_PAL_60; | |
387 | break; | |
388 | case 4: | |
389 | *std = V4L2_STD_PAL; | |
390 | break; | |
391 | case 5: | |
392 | *std = V4L2_STD_SECAM; | |
393 | break; | |
394 | case 6: | |
395 | *std = V4L2_STD_PAL_Nc; | |
396 | break; | |
397 | case 7: | |
398 | *std = V4L2_STD_SECAM; | |
399 | break; | |
400 | default: | |
401 | *std = V4L2_STD_UNKNOWN; | |
402 | break; | |
403 | } | |
404 | ||
405 | /* after std detection, write back user set std */ | |
406 | adv7183_s_std(sd, decoder->std); | |
407 | return 0; | |
408 | } | |
409 | ||
410 | static int adv7183_g_input_status(struct v4l2_subdev *sd, u32 *status) | |
411 | { | |
412 | int reg; | |
413 | ||
414 | *status = V4L2_IN_ST_NO_SIGNAL; | |
415 | reg = adv7183_read(sd, ADV7183_STATUS_1); | |
416 | if (reg < 0) | |
417 | return reg; | |
418 | if (reg & 0x1) | |
419 | *status = 0; | |
420 | return 0; | |
421 | } | |
422 | ||
423 | static int adv7183_enum_mbus_fmt(struct v4l2_subdev *sd, unsigned index, | |
424 | enum v4l2_mbus_pixelcode *code) | |
425 | { | |
426 | if (index > 0) | |
427 | return -EINVAL; | |
428 | ||
429 | *code = V4L2_MBUS_FMT_UYVY8_2X8; | |
430 | return 0; | |
431 | } | |
432 | ||
433 | static int adv7183_try_mbus_fmt(struct v4l2_subdev *sd, | |
434 | struct v4l2_mbus_framefmt *fmt) | |
435 | { | |
436 | struct adv7183 *decoder = to_adv7183(sd); | |
437 | ||
438 | fmt->code = V4L2_MBUS_FMT_UYVY8_2X8; | |
439 | fmt->colorspace = V4L2_COLORSPACE_SMPTE170M; | |
440 | if (decoder->std & V4L2_STD_525_60) { | |
441 | fmt->field = V4L2_FIELD_SEQ_TB; | |
442 | fmt->width = 720; | |
443 | fmt->height = 480; | |
444 | } else { | |
445 | fmt->field = V4L2_FIELD_SEQ_BT; | |
446 | fmt->width = 720; | |
447 | fmt->height = 576; | |
448 | } | |
449 | return 0; | |
450 | } | |
451 | ||
452 | static int adv7183_s_mbus_fmt(struct v4l2_subdev *sd, | |
453 | struct v4l2_mbus_framefmt *fmt) | |
454 | { | |
455 | struct adv7183 *decoder = to_adv7183(sd); | |
456 | ||
457 | adv7183_try_mbus_fmt(sd, fmt); | |
458 | decoder->fmt = *fmt; | |
459 | return 0; | |
460 | } | |
461 | ||
462 | static int adv7183_g_mbus_fmt(struct v4l2_subdev *sd, | |
463 | struct v4l2_mbus_framefmt *fmt) | |
464 | { | |
465 | struct adv7183 *decoder = to_adv7183(sd); | |
466 | ||
467 | *fmt = decoder->fmt; | |
468 | return 0; | |
469 | } | |
470 | ||
471 | static int adv7183_s_stream(struct v4l2_subdev *sd, int enable) | |
472 | { | |
473 | struct adv7183 *decoder = to_adv7183(sd); | |
474 | ||
475 | if (enable) | |
95323361 | 476 | gpio_set_value(decoder->oe_pin, 0); |
202ea1f0 | 477 | else |
95323361 | 478 | gpio_set_value(decoder->oe_pin, 1); |
202ea1f0 SJ |
479 | udelay(1); |
480 | return 0; | |
481 | } | |
482 | ||
202ea1f0 SJ |
483 | #ifdef CONFIG_VIDEO_ADV_DEBUG |
484 | static int adv7183_g_register(struct v4l2_subdev *sd, struct v4l2_dbg_register *reg) | |
485 | { | |
202ea1f0 SJ |
486 | reg->val = adv7183_read(sd, reg->reg & 0xff); |
487 | reg->size = 1; | |
488 | return 0; | |
489 | } | |
490 | ||
977ba3b1 | 491 | static int adv7183_s_register(struct v4l2_subdev *sd, const struct v4l2_dbg_register *reg) |
202ea1f0 | 492 | { |
202ea1f0 SJ |
493 | adv7183_write(sd, reg->reg & 0xff, reg->val & 0xff); |
494 | return 0; | |
495 | } | |
496 | #endif | |
497 | ||
498 | static const struct v4l2_ctrl_ops adv7183_ctrl_ops = { | |
499 | .s_ctrl = adv7183_s_ctrl, | |
500 | }; | |
501 | ||
502 | static const struct v4l2_subdev_core_ops adv7183_core_ops = { | |
503 | .log_status = adv7183_log_status, | |
504 | .g_std = adv7183_g_std, | |
505 | .s_std = adv7183_s_std, | |
506 | .reset = adv7183_reset, | |
202ea1f0 SJ |
507 | #ifdef CONFIG_VIDEO_ADV_DEBUG |
508 | .g_register = adv7183_g_register, | |
509 | .s_register = adv7183_s_register, | |
510 | #endif | |
511 | }; | |
512 | ||
513 | static const struct v4l2_subdev_video_ops adv7183_video_ops = { | |
514 | .s_routing = adv7183_s_routing, | |
515 | .querystd = adv7183_querystd, | |
516 | .g_input_status = adv7183_g_input_status, | |
517 | .enum_mbus_fmt = adv7183_enum_mbus_fmt, | |
518 | .try_mbus_fmt = adv7183_try_mbus_fmt, | |
519 | .s_mbus_fmt = adv7183_s_mbus_fmt, | |
520 | .g_mbus_fmt = adv7183_g_mbus_fmt, | |
521 | .s_stream = adv7183_s_stream, | |
522 | }; | |
523 | ||
524 | static const struct v4l2_subdev_ops adv7183_ops = { | |
525 | .core = &adv7183_core_ops, | |
526 | .video = &adv7183_video_ops, | |
527 | }; | |
528 | ||
529 | static int adv7183_probe(struct i2c_client *client, | |
530 | const struct i2c_device_id *id) | |
531 | { | |
532 | struct adv7183 *decoder; | |
533 | struct v4l2_subdev *sd; | |
534 | struct v4l2_ctrl_handler *hdl; | |
535 | int ret; | |
536 | struct v4l2_mbus_framefmt fmt; | |
537 | const unsigned *pin_array; | |
538 | ||
539 | /* Check if the adapter supports the needed features */ | |
540 | if (!i2c_check_functionality(client->adapter, I2C_FUNC_SMBUS_BYTE_DATA)) | |
541 | return -EIO; | |
542 | ||
543 | v4l_info(client, "chip found @ 0x%02x (%s)\n", | |
544 | client->addr << 1, client->adapter->name); | |
545 | ||
546 | pin_array = client->dev.platform_data; | |
547 | if (pin_array == NULL) | |
548 | return -EINVAL; | |
549 | ||
c02b211d | 550 | decoder = devm_kzalloc(&client->dev, sizeof(*decoder), GFP_KERNEL); |
202ea1f0 SJ |
551 | if (decoder == NULL) |
552 | return -ENOMEM; | |
553 | ||
554 | decoder->reset_pin = pin_array[0]; | |
555 | decoder->oe_pin = pin_array[1]; | |
556 | ||
b015ba29 LP |
557 | if (devm_gpio_request_one(&client->dev, decoder->reset_pin, |
558 | GPIOF_OUT_INIT_LOW, "ADV7183 Reset")) { | |
202ea1f0 | 559 | v4l_err(client, "failed to request GPIO %d\n", decoder->reset_pin); |
c02b211d | 560 | return -EBUSY; |
202ea1f0 SJ |
561 | } |
562 | ||
b015ba29 LP |
563 | if (devm_gpio_request_one(&client->dev, decoder->oe_pin, |
564 | GPIOF_OUT_INIT_HIGH, | |
565 | "ADV7183 Output Enable")) { | |
202ea1f0 | 566 | v4l_err(client, "failed to request GPIO %d\n", decoder->oe_pin); |
b015ba29 | 567 | return -EBUSY; |
202ea1f0 SJ |
568 | } |
569 | ||
570 | sd = &decoder->sd; | |
571 | v4l2_i2c_subdev_init(sd, client, &adv7183_ops); | |
572 | ||
573 | hdl = &decoder->hdl; | |
574 | v4l2_ctrl_handler_init(hdl, 4); | |
575 | v4l2_ctrl_new_std(hdl, &adv7183_ctrl_ops, | |
576 | V4L2_CID_BRIGHTNESS, -128, 127, 1, 0); | |
577 | v4l2_ctrl_new_std(hdl, &adv7183_ctrl_ops, | |
578 | V4L2_CID_CONTRAST, 0, 0xFF, 1, 0x80); | |
579 | v4l2_ctrl_new_std(hdl, &adv7183_ctrl_ops, | |
580 | V4L2_CID_SATURATION, 0, 0xFFFF, 1, 0x8080); | |
581 | v4l2_ctrl_new_std(hdl, &adv7183_ctrl_ops, | |
582 | V4L2_CID_HUE, 0, 0xFFFF, 1, 0x8080); | |
583 | /* hook the control handler into the driver */ | |
584 | sd->ctrl_handler = hdl; | |
585 | if (hdl->error) { | |
586 | ret = hdl->error; | |
587 | ||
588 | v4l2_ctrl_handler_free(hdl); | |
b015ba29 | 589 | return ret; |
202ea1f0 SJ |
590 | } |
591 | ||
592 | /* v4l2 doesn't support an autodetect standard, pick PAL as default */ | |
593 | decoder->std = V4L2_STD_PAL; | |
594 | decoder->input = ADV7183_COMPOSITE4; | |
595 | decoder->output = ADV7183_8BIT_OUT; | |
596 | ||
202ea1f0 | 597 | /* reset chip */ |
202ea1f0 SJ |
598 | /* reset pulse width at least 5ms */ |
599 | mdelay(10); | |
95323361 | 600 | gpio_set_value(decoder->reset_pin, 1); |
202ea1f0 SJ |
601 | /* wait 5ms before any further i2c writes are performed */ |
602 | mdelay(5); | |
603 | ||
604 | adv7183_writeregs(sd, adv7183_init_regs, ARRAY_SIZE(adv7183_init_regs)); | |
605 | adv7183_s_std(sd, decoder->std); | |
606 | fmt.width = 720; | |
607 | fmt.height = 576; | |
608 | adv7183_s_mbus_fmt(sd, &fmt); | |
609 | ||
610 | /* initialize the hardware to the default control values */ | |
611 | ret = v4l2_ctrl_handler_setup(hdl); | |
612 | if (ret) { | |
613 | v4l2_ctrl_handler_free(hdl); | |
b015ba29 | 614 | return ret; |
202ea1f0 SJ |
615 | } |
616 | ||
617 | return 0; | |
202ea1f0 SJ |
618 | } |
619 | ||
620 | static int adv7183_remove(struct i2c_client *client) | |
621 | { | |
622 | struct v4l2_subdev *sd = i2c_get_clientdata(client); | |
202ea1f0 SJ |
623 | |
624 | v4l2_device_unregister_subdev(sd); | |
625 | v4l2_ctrl_handler_free(sd->ctrl_handler); | |
202ea1f0 SJ |
626 | return 0; |
627 | } | |
628 | ||
629 | static const struct i2c_device_id adv7183_id[] = { | |
630 | {"adv7183", 0}, | |
631 | {}, | |
632 | }; | |
633 | ||
634 | MODULE_DEVICE_TABLE(i2c, adv7183_id); | |
635 | ||
636 | static struct i2c_driver adv7183_driver = { | |
637 | .driver = { | |
638 | .owner = THIS_MODULE, | |
639 | .name = "adv7183", | |
640 | }, | |
641 | .probe = adv7183_probe, | |
4c62e976 | 642 | .remove = adv7183_remove, |
202ea1f0 SJ |
643 | .id_table = adv7183_id, |
644 | }; | |
645 | ||
01aea0bf | 646 | module_i2c_driver(adv7183_driver); |
202ea1f0 SJ |
647 | |
648 | MODULE_DESCRIPTION("Analog Devices ADV7183 video decoder driver"); | |
649 | MODULE_AUTHOR("Scott Jiang <Scott.Jiang.Linux@gmail.com>"); | |
650 | MODULE_LICENSE("GPL v2"); |