]> git.proxmox.com Git - mirror_ubuntu-artful-kernel.git/blob - drivers/media/i2c/adv7842.c
projects / mirror_ubuntu-artful-kernel.git / blob
? search:
summary | shortlog | log | commit | commitdiff | tree
blame | history | raw | HEAD
Merge commit 'b8c93646fd5c' into omap-for-v4.3/fixes
[mirror_ubuntu-artful-kernel.git] / drivers / media / i2c / adv7842.c
1 /*
2 * adv7842 - Analog Devices ADV7842 video decoder driver
3 *
4 * Copyright 2013 Cisco Systems, Inc. and/or its affiliates. All rights reserved.
5 *
6 * This program is free software; you may redistribute it and/or modify
7 * it under the terms of the GNU General Public License as published by
8 * the Free Software Foundation; version 2 of the License.
9 *
10 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
11 * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
12 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
13 * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
14 * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
15 * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
16 * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
17 * SOFTWARE.
18 *
19 */
20
21 /*
22 * References (c = chapter, p = page):
23 * REF_01 - Analog devices, ADV7842,
24 * Register Settings Recommendations, Rev. 1.9, April 2011
25 * REF_02 - Analog devices, Software User Guide, UG-206,
26 * ADV7842 I2C Register Maps, Rev. 0, November 2010
27 * REF_03 - Analog devices, Hardware User Guide, UG-214,
28 * ADV7842 Fast Switching 2:1 HDMI 1.4 Receiver with 3D-Comb
29 * Decoder and Digitizer , Rev. 0, January 2011
30 */
31
32
33 #include <linux/kernel.h>
34 #include <linux/module.h>
35 #include <linux/slab.h>
36 #include <linux/i2c.h>
37 #include <linux/delay.h>
38 #include <linux/videodev2.h>
39 #include <linux/workqueue.h>
40 #include <linux/v4l2-dv-timings.h>
41 #include <linux/hdmi.h>
42 #include <media/v4l2-device.h>
43 #include <media/v4l2-event.h>
44 #include <media/v4l2-ctrls.h>
45 #include <media/v4l2-dv-timings.h>
46 #include <media/adv7842.h>
47
48 static int debug;
49 module_param(debug, int, 0644);
50 MODULE_PARM_DESC(debug, "debug level (0-2)");
51
52 MODULE_DESCRIPTION("Analog Devices ADV7842 video decoder driver");
53 MODULE_AUTHOR("Hans Verkuil <hans.verkuil@cisco.com>");
54 MODULE_AUTHOR("Martin Bugge <marbugge@cisco.com>");
55 MODULE_LICENSE("GPL");
56
57 /* ADV7842 system clock frequency */
58 #define ADV7842_fsc (28636360)
59
60 #define ADV7842_RGB_OUT (1 << 1)
61
62 #define ADV7842_OP_FORMAT_SEL_8BIT (0 << 0)
63 #define ADV7842_OP_FORMAT_SEL_10BIT (1 << 0)
64 #define ADV7842_OP_FORMAT_SEL_12BIT (2 << 0)
65
66 #define ADV7842_OP_MODE_SEL_SDR_422 (0 << 5)
67 #define ADV7842_OP_MODE_SEL_DDR_422 (1 << 5)
68 #define ADV7842_OP_MODE_SEL_SDR_444 (2 << 5)
69 #define ADV7842_OP_MODE_SEL_DDR_444 (3 << 5)
70 #define ADV7842_OP_MODE_SEL_SDR_422_2X (4 << 5)
71 #define ADV7842_OP_MODE_SEL_ADI_CM (5 << 5)
72
73 #define ADV7842_OP_CH_SEL_GBR (0 << 5)
74 #define ADV7842_OP_CH_SEL_GRB (1 << 5)
75 #define ADV7842_OP_CH_SEL_BGR (2 << 5)
76 #define ADV7842_OP_CH_SEL_RGB (3 << 5)
77 #define ADV7842_OP_CH_SEL_BRG (4 << 5)
78 #define ADV7842_OP_CH_SEL_RBG (5 << 5)
79
80 #define ADV7842_OP_SWAP_CB_CR (1 << 0)
81
82 /*
83 **********************************************************************
84 *
85 * Arrays with configuration parameters for the ADV7842
86 *
87 **********************************************************************
88 */
89
90 struct adv7842_format_info {
91 u32 code;
92 u8 op_ch_sel;
93 bool rgb_out;
94 bool swap_cb_cr;
95 u8 op_format_sel;
96 };
97
98 struct adv7842_state {
99 struct adv7842_platform_data pdata;
100 struct v4l2_subdev sd;
101 struct media_pad pad;
102 struct v4l2_ctrl_handler hdl;
103 enum adv7842_mode mode;
104 struct v4l2_dv_timings timings;
105 enum adv7842_vid_std_select vid_std_select;
106
107 const struct adv7842_format_info *format;
108
109 v4l2_std_id norm;
110 struct {
111 u8 edid[256];
112 u32 present;
113 } hdmi_edid;
114 struct {
115 u8 edid[256];
116 u32 present;
117 } vga_edid;
118 struct v4l2_fract aspect_ratio;
119 u32 rgb_quantization_range;
120 bool is_cea_format;
121 struct workqueue_struct *work_queues;
122 struct delayed_work delayed_work_enable_hotplug;
123 bool restart_stdi_once;
124 bool hdmi_port_a;
125
126 /* i2c clients */
127 struct i2c_client *i2c_sdp_io;
128 struct i2c_client *i2c_sdp;
129 struct i2c_client *i2c_cp;
130 struct i2c_client *i2c_vdp;
131 struct i2c_client *i2c_afe;
132 struct i2c_client *i2c_hdmi;
133 struct i2c_client *i2c_repeater;
134 struct i2c_client *i2c_edid;
135 struct i2c_client *i2c_infoframe;
136 struct i2c_client *i2c_cec;
137 struct i2c_client *i2c_avlink;
138
139 /* controls */
140 struct v4l2_ctrl *detect_tx_5v_ctrl;
141 struct v4l2_ctrl *analog_sampling_phase_ctrl;
142 struct v4l2_ctrl *free_run_color_ctrl_manual;
143 struct v4l2_ctrl *free_run_color_ctrl;
144 struct v4l2_ctrl *rgb_quantization_range_ctrl;
145 };
146
147 /* Unsupported timings. This device cannot support 720p30. */
148 static const struct v4l2_dv_timings adv7842_timings_exceptions[] = {
149 V4L2_DV_BT_CEA_1280X720P30,
150 { }
151 };
152
153 static bool adv7842_check_dv_timings(const struct v4l2_dv_timings *t, void *hdl)
154 {
155 int i;
156
157 for (i = 0; adv7842_timings_exceptions[i].bt.width; i++)
158 if (v4l2_match_dv_timings(t, adv7842_timings_exceptions + i, 0))
159 return false;
160 return true;
161 }
162
163 struct adv7842_video_standards {
164 struct v4l2_dv_timings timings;
165 u8 vid_std;
166 u8 v_freq;
167 };
168
169 /* sorted by number of lines */
170 static const struct adv7842_video_standards adv7842_prim_mode_comp[] = {
171 /* { V4L2_DV_BT_CEA_720X480P59_94, 0x0a, 0x00 }, TODO flickering */
172 { V4L2_DV_BT_CEA_720X576P50, 0x0b, 0x00 },
173 { V4L2_DV_BT_CEA_1280X720P50, 0x19, 0x01 },
174 { V4L2_DV_BT_CEA_1280X720P60, 0x19, 0x00 },
175 { V4L2_DV_BT_CEA_1920X1080P24, 0x1e, 0x04 },
176 { V4L2_DV_BT_CEA_1920X1080P25, 0x1e, 0x03 },
177 { V4L2_DV_BT_CEA_1920X1080P30, 0x1e, 0x02 },
178 { V4L2_DV_BT_CEA_1920X1080P50, 0x1e, 0x01 },
179 { V4L2_DV_BT_CEA_1920X1080P60, 0x1e, 0x00 },
180 /* TODO add 1920x1080P60_RB (CVT timing) */
181 { },
182 };
183
184 /* sorted by number of lines */
185 static const struct adv7842_video_standards adv7842_prim_mode_gr[] = {
186 { V4L2_DV_BT_DMT_640X480P60, 0x08, 0x00 },
187 { V4L2_DV_BT_DMT_640X480P72, 0x09, 0x00 },
188 { V4L2_DV_BT_DMT_640X480P75, 0x0a, 0x00 },
189 { V4L2_DV_BT_DMT_640X480P85, 0x0b, 0x00 },
190 { V4L2_DV_BT_DMT_800X600P56, 0x00, 0x00 },
191 { V4L2_DV_BT_DMT_800X600P60, 0x01, 0x00 },
192 { V4L2_DV_BT_DMT_800X600P72, 0x02, 0x00 },
193 { V4L2_DV_BT_DMT_800X600P75, 0x03, 0x00 },
194 { V4L2_DV_BT_DMT_800X600P85, 0x04, 0x00 },
195 { V4L2_DV_BT_DMT_1024X768P60, 0x0c, 0x00 },
196 { V4L2_DV_BT_DMT_1024X768P70, 0x0d, 0x00 },
197 { V4L2_DV_BT_DMT_1024X768P75, 0x0e, 0x00 },
198 { V4L2_DV_BT_DMT_1024X768P85, 0x0f, 0x00 },
199 { V4L2_DV_BT_DMT_1280X1024P60, 0x05, 0x00 },
200 { V4L2_DV_BT_DMT_1280X1024P75, 0x06, 0x00 },
201 { V4L2_DV_BT_DMT_1360X768P60, 0x12, 0x00 },
202 { V4L2_DV_BT_DMT_1366X768P60, 0x13, 0x00 },
203 { V4L2_DV_BT_DMT_1400X1050P60, 0x14, 0x00 },
204 { V4L2_DV_BT_DMT_1400X1050P75, 0x15, 0x00 },
205 { V4L2_DV_BT_DMT_1600X1200P60, 0x16, 0x00 }, /* TODO not tested */
206 /* TODO add 1600X1200P60_RB (not a DMT timing) */
207 { V4L2_DV_BT_DMT_1680X1050P60, 0x18, 0x00 },
208 { V4L2_DV_BT_DMT_1920X1200P60_RB, 0x19, 0x00 }, /* TODO not tested */
209 { },
210 };
211
212 /* sorted by number of lines */
213 static const struct adv7842_video_standards adv7842_prim_mode_hdmi_comp[] = {
214 { V4L2_DV_BT_CEA_720X480P59_94, 0x0a, 0x00 },
215 { V4L2_DV_BT_CEA_720X576P50, 0x0b, 0x00 },
216 { V4L2_DV_BT_CEA_1280X720P50, 0x13, 0x01 },
217 { V4L2_DV_BT_CEA_1280X720P60, 0x13, 0x00 },
218 { V4L2_DV_BT_CEA_1920X1080P24, 0x1e, 0x04 },
219 { V4L2_DV_BT_CEA_1920X1080P25, 0x1e, 0x03 },
220 { V4L2_DV_BT_CEA_1920X1080P30, 0x1e, 0x02 },
221 { V4L2_DV_BT_CEA_1920X1080P50, 0x1e, 0x01 },
222 { V4L2_DV_BT_CEA_1920X1080P60, 0x1e, 0x00 },
223 { },
224 };
225
226 /* sorted by number of lines */
227 static const struct adv7842_video_standards adv7842_prim_mode_hdmi_gr[] = {
228 { V4L2_DV_BT_DMT_640X480P60, 0x08, 0x00 },
229 { V4L2_DV_BT_DMT_640X480P72, 0x09, 0x00 },
230 { V4L2_DV_BT_DMT_640X480P75, 0x0a, 0x00 },
231 { V4L2_DV_BT_DMT_640X480P85, 0x0b, 0x00 },
232 { V4L2_DV_BT_DMT_800X600P56, 0x00, 0x00 },
233 { V4L2_DV_BT_DMT_800X600P60, 0x01, 0x00 },
234 { V4L2_DV_BT_DMT_800X600P72, 0x02, 0x00 },
235 { V4L2_DV_BT_DMT_800X600P75, 0x03, 0x00 },
236 { V4L2_DV_BT_DMT_800X600P85, 0x04, 0x00 },
237 { V4L2_DV_BT_DMT_1024X768P60, 0x0c, 0x00 },
238 { V4L2_DV_BT_DMT_1024X768P70, 0x0d, 0x00 },
239 { V4L2_DV_BT_DMT_1024X768P75, 0x0e, 0x00 },
240 { V4L2_DV_BT_DMT_1024X768P85, 0x0f, 0x00 },
241 { V4L2_DV_BT_DMT_1280X1024P60, 0x05, 0x00 },
242 { V4L2_DV_BT_DMT_1280X1024P75, 0x06, 0x00 },
243 { },
244 };
245
246 static const struct v4l2_event adv7842_ev_fmt = {
247 .type = V4L2_EVENT_SOURCE_CHANGE,
248 .u.src_change.changes = V4L2_EVENT_SRC_CH_RESOLUTION,
249 };
250
251 /* ----------------------------------------------------------------------- */
252
253 static inline struct adv7842_state *to_state(struct v4l2_subdev *sd)
254 {
255 return container_of(sd, struct adv7842_state, sd);
256 }
257
258 static inline struct v4l2_subdev *to_sd(struct v4l2_ctrl *ctrl)
259 {
260 return &container_of(ctrl->handler, struct adv7842_state, hdl)->sd;
261 }
262
263 static inline unsigned hblanking(const struct v4l2_bt_timings *t)
264 {
265 return V4L2_DV_BT_BLANKING_WIDTH(t);
266 }
267
268 static inline unsigned htotal(const struct v4l2_bt_timings *t)
269 {
270 return V4L2_DV_BT_FRAME_WIDTH(t);
271 }
272
273 static inline unsigned vblanking(const struct v4l2_bt_timings *t)
274 {
275 return V4L2_DV_BT_BLANKING_HEIGHT(t);
276 }
277
278 static inline unsigned vtotal(const struct v4l2_bt_timings *t)
279 {
280 return V4L2_DV_BT_FRAME_HEIGHT(t);
281 }
282
283
284 /* ----------------------------------------------------------------------- */
285
286 static s32 adv_smbus_read_byte_data_check(struct i2c_client *client,
287 u8 command, bool check)
288 {
289 union i2c_smbus_data data;
290
291 if (!i2c_smbus_xfer(client->adapter, client->addr, client->flags,
292 I2C_SMBUS_READ, command,
293 I2C_SMBUS_BYTE_DATA, &data))
294 return data.byte;
295 if (check)
296 v4l_err(client, "error reading %02x, %02x\n",
297 client->addr, command);
298 return -EIO;
299 }
300
301 static s32 adv_smbus_read_byte_data(struct i2c_client *client, u8 command)
302 {
303 int i;
304
305 for (i = 0; i < 3; i++) {
306 int ret = adv_smbus_read_byte_data_check(client, command, true);
307
308 if (ret >= 0) {
309 if (i)
310 v4l_err(client, "read ok after %d retries\n", i);
311 return ret;
312 }
313 }
314 v4l_err(client, "read failed\n");
315 return -EIO;
316 }
317
318 static s32 adv_smbus_write_byte_data(struct i2c_client *client,
319 u8 command, u8 value)
320 {
321 union i2c_smbus_data data;
322 int err;
323 int i;
324
325 data.byte = value;
326 for (i = 0; i < 3; i++) {
327 err = i2c_smbus_xfer(client->adapter, client->addr,
328 client->flags,
329 I2C_SMBUS_WRITE, command,
330 I2C_SMBUS_BYTE_DATA, &data);
331 if (!err)
332 break;
333 }
334 if (err < 0)
335 v4l_err(client, "error writing %02x, %02x, %02x\n",
336 client->addr, command, value);
337 return err;
338 }
339
340 static void adv_smbus_write_byte_no_check(struct i2c_client *client,
341 u8 command, u8 value)
342 {
343 union i2c_smbus_data data;
344 data.byte = value;
345
346 i2c_smbus_xfer(client->adapter, client->addr,
347 client->flags,
348 I2C_SMBUS_WRITE, command,
349 I2C_SMBUS_BYTE_DATA, &data);
350 }
351
352 static s32 adv_smbus_write_i2c_block_data(struct i2c_client *client,
353 u8 command, unsigned length, const u8 *values)
354 {
355 union i2c_smbus_data data;
356
357 if (length > I2C_SMBUS_BLOCK_MAX)
358 length = I2C_SMBUS_BLOCK_MAX;
359 data.block[0] = length;
360 memcpy(data.block + 1, values, length);
361 return i2c_smbus_xfer(client->adapter, client->addr, client->flags,
362 I2C_SMBUS_WRITE, command,
363 I2C_SMBUS_I2C_BLOCK_DATA, &data);
364 }
365
366 /* ----------------------------------------------------------------------- */
367
368 static inline int io_read(struct v4l2_subdev *sd, u8 reg)
369 {
370 struct i2c_client *client = v4l2_get_subdevdata(sd);
371
372 return adv_smbus_read_byte_data(client, reg);
373 }
374
375 static inline int io_write(struct v4l2_subdev *sd, u8 reg, u8 val)
376 {
377 struct i2c_client *client = v4l2_get_subdevdata(sd);
378
379 return adv_smbus_write_byte_data(client, reg, val);
380 }
381
382 static inline int io_write_and_or(struct v4l2_subdev *sd, u8 reg, u8 mask, u8 val)
383 {
384 return io_write(sd, reg, (io_read(sd, reg) & mask) | val);
385 }
386
387 static inline int io_write_clr_set(struct v4l2_subdev *sd,
388 u8 reg, u8 mask, u8 val)
389 {
390 return io_write(sd, reg, (io_read(sd, reg) & ~mask) | val);
391 }
392
393 static inline int avlink_read(struct v4l2_subdev *sd, u8 reg)
394 {
395 struct adv7842_state *state = to_state(sd);
396
397 return adv_smbus_read_byte_data(state->i2c_avlink, reg);
398 }
399
400 static inline int avlink_write(struct v4l2_subdev *sd, u8 reg, u8 val)
401 {
402 struct adv7842_state *state = to_state(sd);
403
404 return adv_smbus_write_byte_data(state->i2c_avlink, reg, val);
405 }
406
407 static inline int cec_read(struct v4l2_subdev *sd, u8 reg)
408 {
409 struct adv7842_state *state = to_state(sd);
410
411 return adv_smbus_read_byte_data(state->i2c_cec, reg);
412 }
413
414 static inline int cec_write(struct v4l2_subdev *sd, u8 reg, u8 val)
415 {
416 struct adv7842_state *state = to_state(sd);
417
418 return adv_smbus_write_byte_data(state->i2c_cec, reg, val);
419 }
420
421 static inline int cec_write_and_or(struct v4l2_subdev *sd, u8 reg, u8 mask, u8 val)
422 {
423 return cec_write(sd, reg, (cec_read(sd, reg) & mask) | val);
424 }
425
426 static inline int infoframe_read(struct v4l2_subdev *sd, u8 reg)
427 {
428 struct adv7842_state *state = to_state(sd);
429
430 return adv_smbus_read_byte_data(state->i2c_infoframe, reg);
431 }
432
433 static inline int infoframe_write(struct v4l2_subdev *sd, u8 reg, u8 val)
434 {
435 struct adv7842_state *state = to_state(sd);
436
437 return adv_smbus_write_byte_data(state->i2c_infoframe, reg, val);
438 }
439
440 static inline int sdp_io_read(struct v4l2_subdev *sd, u8 reg)
441 {
442 struct adv7842_state *state = to_state(sd);
443
444 return adv_smbus_read_byte_data(state->i2c_sdp_io, reg);
445 }
446
447 static inline int sdp_io_write(struct v4l2_subdev *sd, u8 reg, u8 val)
448 {
449 struct adv7842_state *state = to_state(sd);
450
451 return adv_smbus_write_byte_data(state->i2c_sdp_io, reg, val);
452 }
453
454 static inline int sdp_io_write_and_or(struct v4l2_subdev *sd, u8 reg, u8 mask, u8 val)
455 {
456 return sdp_io_write(sd, reg, (sdp_io_read(sd, reg) & mask) | val);
457 }
458
459 static inline int sdp_read(struct v4l2_subdev *sd, u8 reg)
460 {
461 struct adv7842_state *state = to_state(sd);
462
463 return adv_smbus_read_byte_data(state->i2c_sdp, reg);
464 }
465
466 static inline int sdp_write(struct v4l2_subdev *sd, u8 reg, u8 val)
467 {
468 struct adv7842_state *state = to_state(sd);
469
470 return adv_smbus_write_byte_data(state->i2c_sdp, reg, val);
471 }
472
473 static inline int sdp_write_and_or(struct v4l2_subdev *sd, u8 reg, u8 mask, u8 val)
474 {
475 return sdp_write(sd, reg, (sdp_read(sd, reg) & mask) | val);
476 }
477
478 static inline int afe_read(struct v4l2_subdev *sd, u8 reg)
479 {
480 struct adv7842_state *state = to_state(sd);
481
482 return adv_smbus_read_byte_data(state->i2c_afe, reg);
483 }
484
485 static inline int afe_write(struct v4l2_subdev *sd, u8 reg, u8 val)
486 {
487 struct adv7842_state *state = to_state(sd);
488
489 return adv_smbus_write_byte_data(state->i2c_afe, reg, val);
490 }
491
492 static inline int afe_write_and_or(struct v4l2_subdev *sd, u8 reg, u8 mask, u8 val)
493 {
494 return afe_write(sd, reg, (afe_read(sd, reg) & mask) | val);
495 }
496
497 static inline int rep_read(struct v4l2_subdev *sd, u8 reg)
498 {
499 struct adv7842_state *state = to_state(sd);
500
501 return adv_smbus_read_byte_data(state->i2c_repeater, reg);
502 }
503
504 static inline int rep_write(struct v4l2_subdev *sd, u8 reg, u8 val)
505 {
506 struct adv7842_state *state = to_state(sd);
507
508 return adv_smbus_write_byte_data(state->i2c_repeater, reg, val);
509 }
510
511 static inline int rep_write_and_or(struct v4l2_subdev *sd, u8 reg, u8 mask, u8 val)
512 {
513 return rep_write(sd, reg, (rep_read(sd, reg) & mask) | val);
514 }
515
516 static inline int edid_read(struct v4l2_subdev *sd, u8 reg)
517 {
518 struct adv7842_state *state = to_state(sd);
519
520 return adv_smbus_read_byte_data(state->i2c_edid, reg);
521 }
522
523 static inline int edid_write(struct v4l2_subdev *sd, u8 reg, u8 val)
524 {
525 struct adv7842_state *state = to_state(sd);
526
527 return adv_smbus_write_byte_data(state->i2c_edid, reg, val);
528 }
529
530 static inline int hdmi_read(struct v4l2_subdev *sd, u8 reg)
531 {
532 struct adv7842_state *state = to_state(sd);
533
534 return adv_smbus_read_byte_data(state->i2c_hdmi, reg);
535 }
536
537 static inline int hdmi_write(struct v4l2_subdev *sd, u8 reg, u8 val)
538 {
539 struct adv7842_state *state = to_state(sd);
540
541 return adv_smbus_write_byte_data(state->i2c_hdmi, reg, val);
542 }
543
544 static inline int hdmi_write_and_or(struct v4l2_subdev *sd, u8 reg, u8 mask, u8 val)
545 {
546 return hdmi_write(sd, reg, (hdmi_read(sd, reg) & mask) | val);
547 }
548
549 static inline int cp_read(struct v4l2_subdev *sd, u8 reg)
550 {
551 struct adv7842_state *state = to_state(sd);
552
553 return adv_smbus_read_byte_data(state->i2c_cp, reg);
554 }
555
556 static inline int cp_write(struct v4l2_subdev *sd, u8 reg, u8 val)
557 {
558 struct adv7842_state *state = to_state(sd);
559
560 return adv_smbus_write_byte_data(state->i2c_cp, reg, val);
561 }
562
563 static inline int cp_write_and_or(struct v4l2_subdev *sd, u8 reg, u8 mask, u8 val)
564 {
565 return cp_write(sd, reg, (cp_read(sd, reg) & mask) | val);
566 }
567
568 static inline int vdp_read(struct v4l2_subdev *sd, u8 reg)
569 {
570 struct adv7842_state *state = to_state(sd);
571
572 return adv_smbus_read_byte_data(state->i2c_vdp, reg);
573 }
574
575 static inline int vdp_write(struct v4l2_subdev *sd, u8 reg, u8 val)
576 {
577 struct adv7842_state *state = to_state(sd);
578
579 return adv_smbus_write_byte_data(state->i2c_vdp, reg, val);
580 }
581
582 static void main_reset(struct v4l2_subdev *sd)
583 {
584 struct i2c_client *client = v4l2_get_subdevdata(sd);
585
586 v4l2_dbg(1, debug, sd, "%s:\n", __func__);
587
588 adv_smbus_write_byte_no_check(client, 0xff, 0x80);
589
590 mdelay(5);
591 }
592
593 /* -----------------------------------------------------------------------------
594 * Format helpers
595 */
596
597 static const struct adv7842_format_info adv7842_formats[] = {
598 { MEDIA_BUS_FMT_RGB888_1X24, ADV7842_OP_CH_SEL_RGB, true, false,
599 ADV7842_OP_MODE_SEL_SDR_444 | ADV7842_OP_FORMAT_SEL_8BIT },
600 { MEDIA_BUS_FMT_YUYV8_2X8, ADV7842_OP_CH_SEL_RGB, false, false,
601 ADV7842_OP_MODE_SEL_SDR_422 | ADV7842_OP_FORMAT_SEL_8BIT },
602 { MEDIA_BUS_FMT_YVYU8_2X8, ADV7842_OP_CH_SEL_RGB, false, true,
603 ADV7842_OP_MODE_SEL_SDR_422 | ADV7842_OP_FORMAT_SEL_8BIT },
604 { MEDIA_BUS_FMT_YUYV10_2X10, ADV7842_OP_CH_SEL_RGB, false, false,
605 ADV7842_OP_MODE_SEL_SDR_422 | ADV7842_OP_FORMAT_SEL_10BIT },
606 { MEDIA_BUS_FMT_YVYU10_2X10, ADV7842_OP_CH_SEL_RGB, false, true,
607 ADV7842_OP_MODE_SEL_SDR_422 | ADV7842_OP_FORMAT_SEL_10BIT },
608 { MEDIA_BUS_FMT_YUYV12_2X12, ADV7842_OP_CH_SEL_RGB, false, false,
609 ADV7842_OP_MODE_SEL_SDR_422 | ADV7842_OP_FORMAT_SEL_12BIT },
610 { MEDIA_BUS_FMT_YVYU12_2X12, ADV7842_OP_CH_SEL_RGB, false, true,
611 ADV7842_OP_MODE_SEL_SDR_422 | ADV7842_OP_FORMAT_SEL_12BIT },
612 { MEDIA_BUS_FMT_UYVY8_1X16, ADV7842_OP_CH_SEL_RBG, false, false,
613 ADV7842_OP_MODE_SEL_SDR_422_2X | ADV7842_OP_FORMAT_SEL_8BIT },
614 { MEDIA_BUS_FMT_VYUY8_1X16, ADV7842_OP_CH_SEL_RBG, false, true,
615 ADV7842_OP_MODE_SEL_SDR_422_2X | ADV7842_OP_FORMAT_SEL_8BIT },
616 { MEDIA_BUS_FMT_YUYV8_1X16, ADV7842_OP_CH_SEL_RGB, false, false,
617 ADV7842_OP_MODE_SEL_SDR_422_2X | ADV7842_OP_FORMAT_SEL_8BIT },
618 { MEDIA_BUS_FMT_YVYU8_1X16, ADV7842_OP_CH_SEL_RGB, false, true,
619 ADV7842_OP_MODE_SEL_SDR_422_2X | ADV7842_OP_FORMAT_SEL_8BIT },
620 { MEDIA_BUS_FMT_UYVY10_1X20, ADV7842_OP_CH_SEL_RBG, false, false,
621 ADV7842_OP_MODE_SEL_SDR_422_2X | ADV7842_OP_FORMAT_SEL_10BIT },
622 { MEDIA_BUS_FMT_VYUY10_1X20, ADV7842_OP_CH_SEL_RBG, false, true,
623 ADV7842_OP_MODE_SEL_SDR_422_2X | ADV7842_OP_FORMAT_SEL_10BIT },
624 { MEDIA_BUS_FMT_YUYV10_1X20, ADV7842_OP_CH_SEL_RGB, false, false,
625 ADV7842_OP_MODE_SEL_SDR_422_2X | ADV7842_OP_FORMAT_SEL_10BIT },
626 { MEDIA_BUS_FMT_YVYU10_1X20, ADV7842_OP_CH_SEL_RGB, false, true,
627 ADV7842_OP_MODE_SEL_SDR_422_2X | ADV7842_OP_FORMAT_SEL_10BIT },
628 { MEDIA_BUS_FMT_UYVY12_1X24, ADV7842_OP_CH_SEL_RBG, false, false,
629 ADV7842_OP_MODE_SEL_SDR_422_2X | ADV7842_OP_FORMAT_SEL_12BIT },
630 { MEDIA_BUS_FMT_VYUY12_1X24, ADV7842_OP_CH_SEL_RBG, false, true,
631 ADV7842_OP_MODE_SEL_SDR_422_2X | ADV7842_OP_FORMAT_SEL_12BIT },
632 { MEDIA_BUS_FMT_YUYV12_1X24, ADV7842_OP_CH_SEL_RGB, false, false,
633 ADV7842_OP_MODE_SEL_SDR_422_2X | ADV7842_OP_FORMAT_SEL_12BIT },
634 { MEDIA_BUS_FMT_YVYU12_1X24, ADV7842_OP_CH_SEL_RGB, false, true,
635 ADV7842_OP_MODE_SEL_SDR_422_2X | ADV7842_OP_FORMAT_SEL_12BIT },
636 };
637
638 static const struct adv7842_format_info *
639 adv7842_format_info(struct adv7842_state *state, u32 code)
640 {
641 unsigned int i;
642
643 for (i = 0; i < ARRAY_SIZE(adv7842_formats); ++i) {
644 if (adv7842_formats[i].code == code)
645 return &adv7842_formats[i];
646 }
647
648 return NULL;
649 }
650
651 /* ----------------------------------------------------------------------- */
652
653 static inline bool is_analog_input(struct v4l2_subdev *sd)
654 {
655 struct adv7842_state *state = to_state(sd);
656
657 return ((state->mode == ADV7842_MODE_RGB) ||
658 (state->mode == ADV7842_MODE_COMP));
659 }
660
661 static inline bool is_digital_input(struct v4l2_subdev *sd)
662 {
663 struct adv7842_state *state = to_state(sd);
664
665 return state->mode == ADV7842_MODE_HDMI;
666 }
667
668 static const struct v4l2_dv_timings_cap adv7842_timings_cap_analog = {
669 .type = V4L2_DV_BT_656_1120,
670 /* keep this initialization for compatibility with GCC < 4.4.6 */
671 .reserved = { 0 },
672 V4L2_INIT_BT_TIMINGS(0, 1920, 0, 1200, 25000000, 170000000,
673 V4L2_DV_BT_STD_CEA861 | V4L2_DV_BT_STD_DMT |
674 V4L2_DV_BT_STD_GTF | V4L2_DV_BT_STD_CVT,
675 V4L2_DV_BT_CAP_PROGRESSIVE | V4L2_DV_BT_CAP_REDUCED_BLANKING |
676 V4L2_DV_BT_CAP_CUSTOM)
677 };
678
679 static const struct v4l2_dv_timings_cap adv7842_timings_cap_digital = {
680 .type = V4L2_DV_BT_656_1120,
681 /* keep this initialization for compatibility with GCC < 4.4.6 */
682 .reserved = { 0 },
683 V4L2_INIT_BT_TIMINGS(0, 1920, 0, 1200, 25000000, 225000000,
684 V4L2_DV_BT_STD_CEA861 | V4L2_DV_BT_STD_DMT |
685 V4L2_DV_BT_STD_GTF | V4L2_DV_BT_STD_CVT,
686 V4L2_DV_BT_CAP_PROGRESSIVE | V4L2_DV_BT_CAP_REDUCED_BLANKING |
687 V4L2_DV_BT_CAP_CUSTOM)
688 };
689
690 static inline const struct v4l2_dv_timings_cap *
691 adv7842_get_dv_timings_cap(struct v4l2_subdev *sd)
692 {
693 return is_digital_input(sd) ? &adv7842_timings_cap_digital :
694 &adv7842_timings_cap_analog;
695 }
696
697 /* ----------------------------------------------------------------------- */
698
699 static void adv7842_delayed_work_enable_hotplug(struct work_struct *work)
700 {
701 struct delayed_work *dwork = to_delayed_work(work);
702 struct adv7842_state *state = container_of(dwork,
703 struct adv7842_state, delayed_work_enable_hotplug);
704 struct v4l2_subdev *sd = &state->sd;
705 int present = state->hdmi_edid.present;
706 u8 mask = 0;
707
708 v4l2_dbg(2, debug, sd, "%s: enable hotplug on ports: 0x%x\n",
709 __func__, present);
710
711 if (present & (0x04 << ADV7842_EDID_PORT_A))
712 mask |= 0x20;
713 if (present & (0x04 << ADV7842_EDID_PORT_B))
714 mask |= 0x10;
715 io_write_and_or(sd, 0x20, 0xcf, mask);
716 }
717
718 static int edid_write_vga_segment(struct v4l2_subdev *sd)
719 {
720 struct i2c_client *client = v4l2_get_subdevdata(sd);
721 struct adv7842_state *state = to_state(sd);
722 const u8 *val = state->vga_edid.edid;
723 int err = 0;
724 int i;
725
726 v4l2_dbg(2, debug, sd, "%s: write EDID on VGA port\n", __func__);
727
728 /* HPA disable on port A and B */
729 io_write_and_or(sd, 0x20, 0xcf, 0x00);
730
731 /* Disable I2C access to internal EDID ram from VGA DDC port */
732 rep_write_and_or(sd, 0x7f, 0x7f, 0x00);
733
734 /* edid segment pointer '1' for VGA port */
735 rep_write_and_or(sd, 0x77, 0xef, 0x10);
736
737 for (i = 0; !err && i < 256; i += I2C_SMBUS_BLOCK_MAX)
738 err = adv_smbus_write_i2c_block_data(state->i2c_edid, i,
739 I2C_SMBUS_BLOCK_MAX, val + i);
740 if (err)
741 return err;
742
743 /* Calculates the checksums and enables I2C access
744 * to internal EDID ram from VGA DDC port.
745 */
746 rep_write_and_or(sd, 0x7f, 0x7f, 0x80);
747
748 for (i = 0; i < 1000; i++) {
749 if (rep_read(sd, 0x79) & 0x20)
750 break;
751 mdelay(1);
752 }
753 if (i == 1000) {
754 v4l_err(client, "error enabling edid on VGA port\n");
755 return -EIO;
756 }
757
758 /* enable hotplug after 200 ms */
759 queue_delayed_work(state->work_queues,
760 &state->delayed_work_enable_hotplug, HZ / 5);
761
762 return 0;
763 }
764
765 static int edid_spa_location(const u8 *edid)
766 {
767 u8 d;
768
769 /*
770 * TODO, improve and update for other CEA extensions
771 * currently only for 1 segment (256 bytes),
772 * i.e. 1 extension block and CEA revision 3.
773 */
774 if ((edid[0x7e] != 1) ||
775 (edid[0x80] != 0x02) ||
776 (edid[0x81] != 0x03)) {
777 return -EINVAL;
778 }
779 /*
780 * search Vendor Specific Data Block (tag 3)
781 */
782 d = edid[0x82] & 0x7f;
783 if (d > 4) {
784 int i = 0x84;
785 int end = 0x80 + d;
786 do {
787 u8 tag = edid[i]>>5;
788 u8 len = edid[i] & 0x1f;
789
790 if ((tag == 3) && (len >= 5))
791 return i + 4;
792 i += len + 1;
793 } while (i < end);
794 }
795 return -EINVAL;
796 }
797
798 static int edid_write_hdmi_segment(struct v4l2_subdev *sd, u8 port)
799 {
800 struct i2c_client *client = v4l2_get_subdevdata(sd);
801 struct adv7842_state *state = to_state(sd);
802 const u8 *val = state->hdmi_edid.edid;
803 int spa_loc = edid_spa_location(val);
804 int err = 0;
805 int i;
806
807 v4l2_dbg(2, debug, sd, "%s: write EDID on port %c (spa at 0x%x)\n",
808 __func__, (port == ADV7842_EDID_PORT_A) ? 'A' : 'B', spa_loc);
809
810 /* HPA disable on port A and B */
811 io_write_and_or(sd, 0x20, 0xcf, 0x00);
812
813 /* Disable I2C access to internal EDID ram from HDMI DDC ports */
814 rep_write_and_or(sd, 0x77, 0xf3, 0x00);
815
816 if (!state->hdmi_edid.present)
817 return 0;
818
819 /* edid segment pointer '0' for HDMI ports */
820 rep_write_and_or(sd, 0x77, 0xef, 0x00);
821
822 for (i = 0; !err && i < 256; i += I2C_SMBUS_BLOCK_MAX)
823 err = adv_smbus_write_i2c_block_data(state->i2c_edid, i,
824 I2C_SMBUS_BLOCK_MAX, val + i);
825 if (err)
826 return err;
827
828 if (spa_loc < 0)
829 spa_loc = 0xc0; /* Default value [REF_02, p. 199] */
830
831 if (port == ADV7842_EDID_PORT_A) {
832 rep_write(sd, 0x72, val[spa_loc]);
833 rep_write(sd, 0x73, val[spa_loc + 1]);
834 } else {
835 rep_write(sd, 0x74, val[spa_loc]);
836 rep_write(sd, 0x75, val[spa_loc + 1]);
837 }
838 rep_write(sd, 0x76, spa_loc & 0xff);
839 rep_write_and_or(sd, 0x77, 0xbf, (spa_loc >> 2) & 0x40);
840
841 /* Calculates the checksums and enables I2C access to internal
842 * EDID ram from HDMI DDC ports
843 */
844 rep_write_and_or(sd, 0x77, 0xf3, state->hdmi_edid.present);
845
846 for (i = 0; i < 1000; i++) {
847 if (rep_read(sd, 0x7d) & state->hdmi_edid.present)
848 break;
849 mdelay(1);
850 }
851 if (i == 1000) {
852 v4l_err(client, "error enabling edid on port %c\n",
853 (port == ADV7842_EDID_PORT_A) ? 'A' : 'B');
854 return -EIO;
855 }
856
857 /* enable hotplug after 200 ms */
858 queue_delayed_work(state->work_queues,
859 &state->delayed_work_enable_hotplug, HZ / 5);
860
861 return 0;
862 }
863
864 /* ----------------------------------------------------------------------- */
865
866 #ifdef CONFIG_VIDEO_ADV_DEBUG
867 static void adv7842_inv_register(struct v4l2_subdev *sd)
868 {
869 v4l2_info(sd, "0x000-0x0ff: IO Map\n");
870 v4l2_info(sd, "0x100-0x1ff: AVLink Map\n");
871 v4l2_info(sd, "0x200-0x2ff: CEC Map\n");
872 v4l2_info(sd, "0x300-0x3ff: InfoFrame Map\n");
873 v4l2_info(sd, "0x400-0x4ff: SDP_IO Map\n");
874 v4l2_info(sd, "0x500-0x5ff: SDP Map\n");
875 v4l2_info(sd, "0x600-0x6ff: AFE Map\n");
876 v4l2_info(sd, "0x700-0x7ff: Repeater Map\n");
877 v4l2_info(sd, "0x800-0x8ff: EDID Map\n");
878 v4l2_info(sd, "0x900-0x9ff: HDMI Map\n");
879 v4l2_info(sd, "0xa00-0xaff: CP Map\n");
880 v4l2_info(sd, "0xb00-0xbff: VDP Map\n");
881 }
882
883 static int adv7842_g_register(struct v4l2_subdev *sd,
884 struct v4l2_dbg_register *reg)
885 {
886 reg->size = 1;
887 switch (reg->reg >> 8) {
888 case 0:
889 reg->val = io_read(sd, reg->reg & 0xff);
890 break;
891 case 1:
892 reg->val = avlink_read(sd, reg->reg & 0xff);
893 break;
894 case 2:
895 reg->val = cec_read(sd, reg->reg & 0xff);
896 break;
897 case 3:
898 reg->val = infoframe_read(sd, reg->reg & 0xff);
899 break;
900 case 4:
901 reg->val = sdp_io_read(sd, reg->reg & 0xff);
902 break;
903 case 5:
904 reg->val = sdp_read(sd, reg->reg & 0xff);
905 break;
906 case 6:
907 reg->val = afe_read(sd, reg->reg & 0xff);
908 break;
909 case 7:
910 reg->val = rep_read(sd, reg->reg & 0xff);
911 break;
912 case 8:
913 reg->val = edid_read(sd, reg->reg & 0xff);
914 break;
915 case 9:
916 reg->val = hdmi_read(sd, reg->reg & 0xff);
917 break;
918 case 0xa:
919 reg->val = cp_read(sd, reg->reg & 0xff);
920 break;
921 case 0xb:
922 reg->val = vdp_read(sd, reg->reg & 0xff);
923 break;
924 default:
925 v4l2_info(sd, "Register %03llx not supported\n", reg->reg);
926 adv7842_inv_register(sd);
927 break;
928 }
929 return 0;
930 }
931
932 static int adv7842_s_register(struct v4l2_subdev *sd,
933 const struct v4l2_dbg_register *reg)
934 {
935 u8 val = reg->val & 0xff;
936
937 switch (reg->reg >> 8) {
938 case 0:
939 io_write(sd, reg->reg & 0xff, val);
940 break;
941 case 1:
942 avlink_write(sd, reg->reg & 0xff, val);
943 break;
944 case 2:
945 cec_write(sd, reg->reg & 0xff, val);
946 break;
947 case 3:
948 infoframe_write(sd, reg->reg & 0xff, val);
949 break;
950 case 4:
951 sdp_io_write(sd, reg->reg & 0xff, val);
952 break;
953 case 5:
954 sdp_write(sd, reg->reg & 0xff, val);
955 break;
956 case 6:
957 afe_write(sd, reg->reg & 0xff, val);
958 break;
959 case 7:
960 rep_write(sd, reg->reg & 0xff, val);
961 break;
962 case 8:
963 edid_write(sd, reg->reg & 0xff, val);
964 break;
965 case 9:
966 hdmi_write(sd, reg->reg & 0xff, val);
967 break;
968 case 0xa:
969 cp_write(sd, reg->reg & 0xff, val);
970 break;
971 case 0xb:
972 vdp_write(sd, reg->reg & 0xff, val);
973 break;
974 default:
975 v4l2_info(sd, "Register %03llx not supported\n", reg->reg);
976 adv7842_inv_register(sd);
977 break;
978 }
979 return 0;
980 }
981 #endif
982
983 static int adv7842_s_detect_tx_5v_ctrl(struct v4l2_subdev *sd)
984 {
985 struct adv7842_state *state = to_state(sd);
986 int prev = v4l2_ctrl_g_ctrl(state->detect_tx_5v_ctrl);
987 u8 reg_io_6f = io_read(sd, 0x6f);
988 int val = 0;
989
990 if (reg_io_6f & 0x02)
991 val |= 1; /* port A */
992 if (reg_io_6f & 0x01)
993 val |= 2; /* port B */
994
995 v4l2_dbg(1, debug, sd, "%s: 0x%x -> 0x%x\n", __func__, prev, val);
996
997 if (val != prev)
998 return v4l2_ctrl_s_ctrl(state->detect_tx_5v_ctrl, val);
999 return 0;
1000 }
1001
1002 static int find_and_set_predefined_video_timings(struct v4l2_subdev *sd,
1003 u8 prim_mode,
1004 const struct adv7842_video_standards *predef_vid_timings,
1005 const struct v4l2_dv_timings *timings)
1006 {
1007 int i;
1008
1009 for (i = 0; predef_vid_timings[i].timings.bt.width; i++) {
1010 if (!v4l2_match_dv_timings(timings, &predef_vid_timings[i].timings,
1011 is_digital_input(sd) ? 250000 : 1000000))
1012 continue;
1013 /* video std */
1014 io_write(sd, 0x00, predef_vid_timings[i].vid_std);
1015 /* v_freq and prim mode */
1016 io_write(sd, 0x01, (predef_vid_timings[i].v_freq << 4) + prim_mode);
1017 return 0;
1018 }
1019
1020 return -1;
1021 }
1022
1023 static int configure_predefined_video_timings(struct v4l2_subdev *sd,
1024 struct v4l2_dv_timings *timings)
1025 {
1026 struct adv7842_state *state = to_state(sd);
1027 int err;
1028
1029 v4l2_dbg(1, debug, sd, "%s\n", __func__);
1030
1031 /* reset to default values */
1032 io_write(sd, 0x16, 0x43);
1033 io_write(sd, 0x17, 0x5a);
1034 /* disable embedded syncs for auto graphics mode */
1035 cp_write_and_or(sd, 0x81, 0xef, 0x00);
1036 cp_write(sd, 0x26, 0x00);
1037 cp_write(sd, 0x27, 0x00);
1038 cp_write(sd, 0x28, 0x00);
1039 cp_write(sd, 0x29, 0x00);
1040 cp_write(sd, 0x8f, 0x40);
1041 cp_write(sd, 0x90, 0x00);
1042 cp_write(sd, 0xa5, 0x00);
1043 cp_write(sd, 0xa6, 0x00);
1044 cp_write(sd, 0xa7, 0x00);
1045 cp_write(sd, 0xab, 0x00);
1046 cp_write(sd, 0xac, 0x00);
1047
1048 switch (state->mode) {
1049 case ADV7842_MODE_COMP:
1050 case ADV7842_MODE_RGB:
1051 err = find_and_set_predefined_video_timings(sd,
1052 0x01, adv7842_prim_mode_comp, timings);
1053 if (err)
1054 err = find_and_set_predefined_video_timings(sd,
1055 0x02, adv7842_prim_mode_gr, timings);
1056 break;
1057 case ADV7842_MODE_HDMI:
1058 err = find_and_set_predefined_video_timings(sd,
1059 0x05, adv7842_prim_mode_hdmi_comp, timings);
1060 if (err)
1061 err = find_and_set_predefined_video_timings(sd,
1062 0x06, adv7842_prim_mode_hdmi_gr, timings);
1063 break;
1064 default:
1065 v4l2_dbg(2, debug, sd, "%s: Unknown mode %d\n",
1066 __func__, state->mode);
1067 err = -1;
1068 break;
1069 }
1070
1071
1072 return err;
1073 }
1074
1075 static void configure_custom_video_timings(struct v4l2_subdev *sd,
1076 const struct v4l2_bt_timings *bt)
1077 {
1078 struct adv7842_state *state = to_state(sd);
1079 struct i2c_client *client = v4l2_get_subdevdata(sd);
1080 u32 width = htotal(bt);
1081 u32 height = vtotal(bt);
1082 u16 cp_start_sav = bt->hsync + bt->hbackporch - 4;
1083 u16 cp_start_eav = width - bt->hfrontporch;
1084 u16 cp_start_vbi = height - bt->vfrontporch + 1;
1085 u16 cp_end_vbi = bt->vsync + bt->vbackporch + 1;
1086 u16 ch1_fr_ll = (((u32)bt->pixelclock / 100) > 0) ?
1087 ((width * (ADV7842_fsc / 100)) / ((u32)bt->pixelclock / 100)) : 0;
1088 const u8 pll[2] = {
1089 0xc0 | ((width >> 8) & 0x1f),
1090 width & 0xff
1091 };
1092
1093 v4l2_dbg(2, debug, sd, "%s\n", __func__);
1094
1095 switch (state->mode) {
1096 case ADV7842_MODE_COMP:
1097 case ADV7842_MODE_RGB:
1098 /* auto graphics */
1099 io_write(sd, 0x00, 0x07); /* video std */
1100 io_write(sd, 0x01, 0x02); /* prim mode */
1101 /* enable embedded syncs for auto graphics mode */
1102 cp_write_and_or(sd, 0x81, 0xef, 0x10);
1103
1104 /* Should only be set in auto-graphics mode [REF_02, p. 91-92] */
1105 /* setup PLL_DIV_MAN_EN and PLL_DIV_RATIO */
1106 /* IO-map reg. 0x16 and 0x17 should be written in sequence */
1107 if (adv_smbus_write_i2c_block_data(client, 0x16, 2, pll)) {
1108 v4l2_err(sd, "writing to reg 0x16 and 0x17 failed\n");
1109 break;
1110 }
1111
1112 /* active video - horizontal timing */
1113 cp_write(sd, 0x26, (cp_start_sav >> 8) & 0xf);
1114 cp_write(sd, 0x27, (cp_start_sav & 0xff));
1115 cp_write(sd, 0x28, (cp_start_eav >> 8) & 0xf);
1116 cp_write(sd, 0x29, (cp_start_eav & 0xff));
1117
1118 /* active video - vertical timing */
1119 cp_write(sd, 0xa5, (cp_start_vbi >> 4) & 0xff);
1120 cp_write(sd, 0xa6, ((cp_start_vbi & 0xf) << 4) |
1121 ((cp_end_vbi >> 8) & 0xf));
1122 cp_write(sd, 0xa7, cp_end_vbi & 0xff);
1123 break;
1124 case ADV7842_MODE_HDMI:
1125 /* set default prim_mode/vid_std for HDMI
1126 according to [REF_03, c. 4.2] */
1127 io_write(sd, 0x00, 0x02); /* video std */
1128 io_write(sd, 0x01, 0x06); /* prim mode */
1129 break;
1130 default:
1131 v4l2_dbg(2, debug, sd, "%s: Unknown mode %d\n",
1132 __func__, state->mode);
1133 break;
1134 }
1135
1136 cp_write(sd, 0x8f, (ch1_fr_ll >> 8) & 0x7);
1137 cp_write(sd, 0x90, ch1_fr_ll & 0xff);
1138 cp_write(sd, 0xab, (height >> 4) & 0xff);
1139 cp_write(sd, 0xac, (height & 0x0f) << 4);
1140 }
1141
1142 static void adv7842_set_offset(struct v4l2_subdev *sd, bool auto_offset, u16 offset_a, u16 offset_b, u16 offset_c)
1143 {
1144 struct adv7842_state *state = to_state(sd);
1145 u8 offset_buf[4];
1146
1147 if (auto_offset) {
1148 offset_a = 0x3ff;
1149 offset_b = 0x3ff;
1150 offset_c = 0x3ff;
1151 }
1152
1153 v4l2_dbg(2, debug, sd, "%s: %s offset: a = 0x%x, b = 0x%x, c = 0x%x\n",
1154 __func__, auto_offset ? "Auto" : "Manual",
1155 offset_a, offset_b, offset_c);
1156
1157 offset_buf[0]= (cp_read(sd, 0x77) & 0xc0) | ((offset_a & 0x3f0) >> 4);
1158 offset_buf[1] = ((offset_a & 0x00f) << 4) | ((offset_b & 0x3c0) >> 6);
1159 offset_buf[2] = ((offset_b & 0x03f) << 2) | ((offset_c & 0x300) >> 8);
1160 offset_buf[3] = offset_c & 0x0ff;
1161
1162 /* Registers must be written in this order with no i2c access in between */
1163 if (adv_smbus_write_i2c_block_data(state->i2c_cp, 0x77, 4, offset_buf))
1164 v4l2_err(sd, "%s: i2c error writing to CP reg 0x77, 0x78, 0x79, 0x7a\n", __func__);
1165 }
1166
1167 static void adv7842_set_gain(struct v4l2_subdev *sd, bool auto_gain, u16 gain_a, u16 gain_b, u16 gain_c)
1168 {
1169 struct adv7842_state *state = to_state(sd);
1170 u8 gain_buf[4];
1171 u8 gain_man = 1;
1172 u8 agc_mode_man = 1;
1173
1174 if (auto_gain) {
1175 gain_man = 0;
1176 agc_mode_man = 0;
1177 gain_a = 0x100;
1178 gain_b = 0x100;
1179 gain_c = 0x100;
1180 }
1181
1182 v4l2_dbg(2, debug, sd, "%s: %s gain: a = 0x%x, b = 0x%x, c = 0x%x\n",
1183 __func__, auto_gain ? "Auto" : "Manual",
1184 gain_a, gain_b, gain_c);
1185
1186 gain_buf[0] = ((gain_man << 7) | (agc_mode_man << 6) | ((gain_a & 0x3f0) >> 4));
1187 gain_buf[1] = (((gain_a & 0x00f) << 4) | ((gain_b & 0x3c0) >> 6));
1188 gain_buf[2] = (((gain_b & 0x03f) << 2) | ((gain_c & 0x300) >> 8));
1189 gain_buf[3] = ((gain_c & 0x0ff));
1190
1191 /* Registers must be written in this order with no i2c access in between */
1192 if (adv_smbus_write_i2c_block_data(state->i2c_cp, 0x73, 4, gain_buf))
1193 v4l2_err(sd, "%s: i2c error writing to CP reg 0x73, 0x74, 0x75, 0x76\n", __func__);
1194 }
1195
1196 static void set_rgb_quantization_range(struct v4l2_subdev *sd)
1197 {
1198 struct adv7842_state *state = to_state(sd);
1199 bool rgb_output = io_read(sd, 0x02) & 0x02;
1200 bool hdmi_signal = hdmi_read(sd, 0x05) & 0x80;
1201
1202 v4l2_dbg(2, debug, sd, "%s: RGB quantization range: %d, RGB out: %d, HDMI: %d\n",
1203 __func__, state->rgb_quantization_range,
1204 rgb_output, hdmi_signal);
1205
1206 adv7842_set_gain(sd, true, 0x0, 0x0, 0x0);
1207 adv7842_set_offset(sd, true, 0x0, 0x0, 0x0);
1208
1209 switch (state->rgb_quantization_range) {
1210 case V4L2_DV_RGB_RANGE_AUTO:
1211 if (state->mode == ADV7842_MODE_RGB) {
1212 /* Receiving analog RGB signal
1213 * Set RGB full range (0-255) */
1214 io_write_and_or(sd, 0x02, 0x0f, 0x10);
1215 break;
1216 }
1217
1218 if (state->mode == ADV7842_MODE_COMP) {
1219 /* Receiving analog YPbPr signal
1220 * Set automode */
1221 io_write_and_or(sd, 0x02, 0x0f, 0xf0);
1222 break;
1223 }
1224
1225 if (hdmi_signal) {
1226 /* Receiving HDMI signal
1227 * Set automode */
1228 io_write_and_or(sd, 0x02, 0x0f, 0xf0);
1229 break;
1230 }
1231
1232 /* Receiving DVI-D signal
1233 * ADV7842 selects RGB limited range regardless of
1234 * input format (CE/IT) in automatic mode */
1235 if (state->timings.bt.flags & V4L2_DV_FL_IS_CE_VIDEO) {
1236 /* RGB limited range (16-235) */
1237 io_write_and_or(sd, 0x02, 0x0f, 0x00);
1238 } else {
1239 /* RGB full range (0-255) */
1240 io_write_and_or(sd, 0x02, 0x0f, 0x10);
1241
1242 if (is_digital_input(sd) && rgb_output) {
1243 adv7842_set_offset(sd, false, 0x40, 0x40, 0x40);
1244 } else {
1245 adv7842_set_gain(sd, false, 0xe0, 0xe0, 0xe0);
1246 adv7842_set_offset(sd, false, 0x70, 0x70, 0x70);
1247 }
1248 }
1249 break;
1250 case V4L2_DV_RGB_RANGE_LIMITED:
1251 if (state->mode == ADV7842_MODE_COMP) {
1252 /* YCrCb limited range (16-235) */
1253 io_write_and_or(sd, 0x02, 0x0f, 0x20);
1254 break;
1255 }
1256
1257 /* RGB limited range (16-235) */
1258 io_write_and_or(sd, 0x02, 0x0f, 0x00);
1259
1260 break;
1261 case V4L2_DV_RGB_RANGE_FULL:
1262 if (state->mode == ADV7842_MODE_COMP) {
1263 /* YCrCb full range (0-255) */
1264 io_write_and_or(sd, 0x02, 0x0f, 0x60);
1265 break;
1266 }
1267
1268 /* RGB full range (0-255) */
1269 io_write_and_or(sd, 0x02, 0x0f, 0x10);
1270
1271 if (is_analog_input(sd) || hdmi_signal)
1272 break;
1273
1274 /* Adjust gain/offset for DVI-D signals only */
1275 if (rgb_output) {
1276 adv7842_set_offset(sd, false, 0x40, 0x40, 0x40);
1277 } else {
1278 adv7842_set_gain(sd, false, 0xe0, 0xe0, 0xe0);
1279 adv7842_set_offset(sd, false, 0x70, 0x70, 0x70);
1280 }
1281 break;
1282 }
1283 }
1284
1285 static int adv7842_s_ctrl(struct v4l2_ctrl *ctrl)
1286 {
1287 struct v4l2_subdev *sd = to_sd(ctrl);
1288 struct adv7842_state *state = to_state(sd);
1289
1290 /* TODO SDP ctrls
1291 contrast/brightness/hue/free run is acting a bit strange,
1292 not sure if sdp csc is correct.
1293 */
1294 switch (ctrl->id) {
1295 /* standard ctrls */
1296 case V4L2_CID_BRIGHTNESS:
1297 cp_write(sd, 0x3c, ctrl->val);
1298 sdp_write(sd, 0x14, ctrl->val);
1299 /* ignore lsb sdp 0x17[3:2] */
1300 return 0;
1301 case V4L2_CID_CONTRAST:
1302 cp_write(sd, 0x3a, ctrl->val);
1303 sdp_write(sd, 0x13, ctrl->val);
1304 /* ignore lsb sdp 0x17[1:0] */
1305 return 0;
1306 case V4L2_CID_SATURATION:
1307 cp_write(sd, 0x3b, ctrl->val);
1308 sdp_write(sd, 0x15, ctrl->val);
1309 /* ignore lsb sdp 0x17[5:4] */
1310 return 0;
1311 case V4L2_CID_HUE:
1312 cp_write(sd, 0x3d, ctrl->val);
1313 sdp_write(sd, 0x16, ctrl->val);
1314 /* ignore lsb sdp 0x17[7:6] */
1315 return 0;
1316 /* custom ctrls */
1317 case V4L2_CID_ADV_RX_ANALOG_SAMPLING_PHASE:
1318 afe_write(sd, 0xc8, ctrl->val);
1319 return 0;
1320 case V4L2_CID_ADV_RX_FREE_RUN_COLOR_MANUAL:
1321 cp_write_and_or(sd, 0xbf, ~0x04, (ctrl->val << 2));
1322 sdp_write_and_or(sd, 0xdd, ~0x04, (ctrl->val << 2));
1323 return 0;
1324 case V4L2_CID_ADV_RX_FREE_RUN_COLOR: {
1325 u8 R = (ctrl->val & 0xff0000) >> 16;
1326 u8 G = (ctrl->val & 0x00ff00) >> 8;
1327 u8 B = (ctrl->val & 0x0000ff);
1328 /* RGB -> YUV, numerical approximation */
1329 int Y = 66 * R + 129 * G + 25 * B;
1330 int U = -38 * R - 74 * G + 112 * B;
1331 int V = 112 * R - 94 * G - 18 * B;
1332
1333 /* Scale down to 8 bits with rounding */
1334 Y = (Y + 128) >> 8;
1335 U = (U + 128) >> 8;
1336 V = (V + 128) >> 8;
1337 /* make U,V positive */
1338 Y += 16;
1339 U += 128;
1340 V += 128;
1341
1342 v4l2_dbg(1, debug, sd, "R %x, G %x, B %x\n", R, G, B);
1343 v4l2_dbg(1, debug, sd, "Y %x, U %x, V %x\n", Y, U, V);
1344
1345 /* CP */
1346 cp_write(sd, 0xc1, R);
1347 cp_write(sd, 0xc0, G);
1348 cp_write(sd, 0xc2, B);
1349 /* SDP */
1350 sdp_write(sd, 0xde, Y);
1351 sdp_write(sd, 0xdf, (V & 0xf0) | ((U >> 4) & 0x0f));
1352 return 0;
1353 }
1354 case V4L2_CID_DV_RX_RGB_RANGE:
1355 state->rgb_quantization_range = ctrl->val;
1356 set_rgb_quantization_range(sd);
1357 return 0;
1358 }
1359 return -EINVAL;
1360 }
1361
1362 static inline bool no_power(struct v4l2_subdev *sd)
1363 {
1364 return io_read(sd, 0x0c) & 0x24;
1365 }
1366
1367 static inline bool no_cp_signal(struct v4l2_subdev *sd)
1368 {
1369 return ((cp_read(sd, 0xb5) & 0xd0) != 0xd0) || !(cp_read(sd, 0xb1) & 0x80);
1370 }
1371
1372 static inline bool is_hdmi(struct v4l2_subdev *sd)
1373 {
1374 return hdmi_read(sd, 0x05) & 0x80;
1375 }
1376
1377 static int adv7842_g_input_status(struct v4l2_subdev *sd, u32 *status)
1378 {
1379 struct adv7842_state *state = to_state(sd);
1380
1381 *status = 0;
1382
1383 if (io_read(sd, 0x0c) & 0x24)
1384 *status |= V4L2_IN_ST_NO_POWER;
1385
1386 if (state->mode == ADV7842_MODE_SDP) {
1387 /* status from SDP block */
1388 if (!(sdp_read(sd, 0x5A) & 0x01))
1389 *status |= V4L2_IN_ST_NO_SIGNAL;
1390
1391 v4l2_dbg(1, debug, sd, "%s: SDP status = 0x%x\n",
1392 __func__, *status);
1393 return 0;
1394 }
1395 /* status from CP block */
1396 if ((cp_read(sd, 0xb5) & 0xd0) != 0xd0 ||
1397 !(cp_read(sd, 0xb1) & 0x80))
1398 /* TODO channel 2 */
1399 *status |= V4L2_IN_ST_NO_SIGNAL;
1400
1401 if (is_digital_input(sd) && ((io_read(sd, 0x74) & 0x03) != 0x03))
1402 *status |= V4L2_IN_ST_NO_SIGNAL;
1403
1404 v4l2_dbg(1, debug, sd, "%s: CP status = 0x%x\n",
1405 __func__, *status);
1406
1407 return 0;
1408 }
1409
1410 struct stdi_readback {
1411 u16 bl, lcf, lcvs;
1412 u8 hs_pol, vs_pol;
1413 bool interlaced;
1414 };
1415
1416 static int stdi2dv_timings(struct v4l2_subdev *sd,
1417 struct stdi_readback *stdi,
1418 struct v4l2_dv_timings *timings)
1419 {
1420 struct adv7842_state *state = to_state(sd);
1421 u32 hfreq = (ADV7842_fsc * 8) / stdi->bl;
1422 u32 pix_clk;
1423 int i;
1424
1425 for (i = 0; v4l2_dv_timings_presets[i].bt.width; i++) {
1426 const struct v4l2_bt_timings *bt = &v4l2_dv_timings_presets[i].bt;
1427
1428 if (!v4l2_valid_dv_timings(&v4l2_dv_timings_presets[i],
1429 adv7842_get_dv_timings_cap(sd),
1430 adv7842_check_dv_timings, NULL))
1431 continue;
1432 if (vtotal(bt) != stdi->lcf + 1)
1433 continue;
1434 if (bt->vsync != stdi->lcvs)
1435 continue;
1436
1437 pix_clk = hfreq * htotal(bt);
1438
1439 if ((pix_clk < bt->pixelclock + 1000000) &&
1440 (pix_clk > bt->pixelclock - 1000000)) {
1441 *timings = v4l2_dv_timings_presets[i];
1442 return 0;
1443 }
1444 }
1445
1446 if (v4l2_detect_cvt(stdi->lcf + 1, hfreq, stdi->lcvs, 0,
1447 (stdi->hs_pol == '+' ? V4L2_DV_HSYNC_POS_POL : 0) |
1448 (stdi->vs_pol == '+' ? V4L2_DV_VSYNC_POS_POL : 0),
1449 false, timings))
1450 return 0;
1451 if (v4l2_detect_gtf(stdi->lcf + 1, hfreq, stdi->lcvs,
1452 (stdi->hs_pol == '+' ? V4L2_DV_HSYNC_POS_POL : 0) |
1453 (stdi->vs_pol == '+' ? V4L2_DV_VSYNC_POS_POL : 0),
1454 false, state->aspect_ratio, timings))
1455 return 0;
1456
1457 v4l2_dbg(2, debug, sd,
1458 "%s: No format candidate found for lcvs = %d, lcf=%d, bl = %d, %chsync, %cvsync\n",
1459 __func__, stdi->lcvs, stdi->lcf, stdi->bl,
1460 stdi->hs_pol, stdi->vs_pol);
1461 return -1;
1462 }
1463
1464 static int read_stdi(struct v4l2_subdev *sd, struct stdi_readback *stdi)
1465 {
1466 u32 status;
1467
1468 adv7842_g_input_status(sd, &status);
1469 if (status & V4L2_IN_ST_NO_SIGNAL) {
1470 v4l2_dbg(2, debug, sd, "%s: no signal\n", __func__);
1471 return -ENOLINK;
1472 }
1473
1474 stdi->bl = ((cp_read(sd, 0xb1) & 0x3f) << 8) | cp_read(sd, 0xb2);
1475 stdi->lcf = ((cp_read(sd, 0xb3) & 0x7) << 8) | cp_read(sd, 0xb4);
1476 stdi->lcvs = cp_read(sd, 0xb3) >> 3;
1477
1478 if ((cp_read(sd, 0xb5) & 0x80) && ((cp_read(sd, 0xb5) & 0x03) == 0x01)) {
1479 stdi->hs_pol = ((cp_read(sd, 0xb5) & 0x10) ?
1480 ((cp_read(sd, 0xb5) & 0x08) ? '+' : '-') : 'x');
1481 stdi->vs_pol = ((cp_read(sd, 0xb5) & 0x40) ?
1482 ((cp_read(sd, 0xb5) & 0x20) ? '+' : '-') : 'x');
1483 } else {
1484 stdi->hs_pol = 'x';
1485 stdi->vs_pol = 'x';
1486 }
1487 stdi->interlaced = (cp_read(sd, 0xb1) & 0x40) ? true : false;
1488
1489 if (stdi->lcf < 239 || stdi->bl < 8 || stdi->bl == 0x3fff) {
1490 v4l2_dbg(2, debug, sd, "%s: invalid signal\n", __func__);
1491 return -ENOLINK;
1492 }
1493
1494 v4l2_dbg(2, debug, sd,
1495 "%s: lcf (frame height - 1) = %d, bl = %d, lcvs (vsync) = %d, %chsync, %cvsync, %s\n",
1496 __func__, stdi->lcf, stdi->bl, stdi->lcvs,
1497 stdi->hs_pol, stdi->vs_pol,
1498 stdi->interlaced ? "interlaced" : "progressive");
1499
1500 return 0;
1501 }
1502
1503 static int adv7842_enum_dv_timings(struct v4l2_subdev *sd,
1504 struct v4l2_enum_dv_timings *timings)
1505 {
1506 if (timings->pad != 0)
1507 return -EINVAL;
1508
1509 return v4l2_enum_dv_timings_cap(timings,
1510 adv7842_get_dv_timings_cap(sd), adv7842_check_dv_timings, NULL);
1511 }
1512
1513 static int adv7842_dv_timings_cap(struct v4l2_subdev *sd,
1514 struct v4l2_dv_timings_cap *cap)
1515 {
1516 if (cap->pad != 0)
1517 return -EINVAL;
1518
1519 *cap = *adv7842_get_dv_timings_cap(sd);
1520 return 0;
1521 }
1522
1523 /* Fill the optional fields .standards and .flags in struct v4l2_dv_timings
1524 if the format is listed in adv7842_timings[] */
1525 static void adv7842_fill_optional_dv_timings_fields(struct v4l2_subdev *sd,
1526 struct v4l2_dv_timings *timings)
1527 {
1528 v4l2_find_dv_timings_cap(timings, adv7842_get_dv_timings_cap(sd),
1529 is_digital_input(sd) ? 250000 : 1000000,
1530 adv7842_check_dv_timings, NULL);
1531 }
1532
1533 static int adv7842_query_dv_timings(struct v4l2_subdev *sd,
1534 struct v4l2_dv_timings *timings)
1535 {
1536 struct adv7842_state *state = to_state(sd);
1537 struct v4l2_bt_timings *bt = &timings->bt;
1538 struct stdi_readback stdi = { 0 };
1539
1540 v4l2_dbg(1, debug, sd, "%s:\n", __func__);
1541
1542 memset(timings, 0, sizeof(struct v4l2_dv_timings));
1543
1544 /* SDP block */
1545 if (state->mode == ADV7842_MODE_SDP)
1546 return -ENODATA;
1547
1548 /* read STDI */
1549 if (read_stdi(sd, &stdi)) {
1550 state->restart_stdi_once = true;
1551 v4l2_dbg(1, debug, sd, "%s: no valid signal\n", __func__);
1552 return -ENOLINK;
1553 }
1554 bt->interlaced = stdi.interlaced ?
1555 V4L2_DV_INTERLACED : V4L2_DV_PROGRESSIVE;
1556 bt->standards = V4L2_DV_BT_STD_CEA861 | V4L2_DV_BT_STD_DMT |
1557 V4L2_DV_BT_STD_GTF | V4L2_DV_BT_STD_CVT;
1558
1559 if (is_digital_input(sd)) {
1560 u32 freq;
1561
1562 timings->type = V4L2_DV_BT_656_1120;
1563
1564 bt->width = (hdmi_read(sd, 0x07) & 0x0f) * 256 + hdmi_read(sd, 0x08);
1565 bt->height = (hdmi_read(sd, 0x09) & 0x0f) * 256 + hdmi_read(sd, 0x0a);
1566 freq = ((hdmi_read(sd, 0x51) << 1) + (hdmi_read(sd, 0x52) >> 7)) * 1000000;
1567 freq += ((hdmi_read(sd, 0x52) & 0x7f) * 7813);
1568 if (is_hdmi(sd)) {
1569 /* adjust for deep color mode */
1570 freq = freq * 8 / (((hdmi_read(sd, 0x0b) & 0xc0) >> 6) * 2 + 8);
1571 }
1572 bt->pixelclock = freq;
1573 bt->hfrontporch = (hdmi_read(sd, 0x20) & 0x03) * 256 +
1574 hdmi_read(sd, 0x21);
1575 bt->hsync = (hdmi_read(sd, 0x22) & 0x03) * 256 +
1576 hdmi_read(sd, 0x23);
1577 bt->hbackporch = (hdmi_read(sd, 0x24) & 0x03) * 256 +
1578 hdmi_read(sd, 0x25);
1579 bt->vfrontporch = ((hdmi_read(sd, 0x2a) & 0x1f) * 256 +
1580 hdmi_read(sd, 0x2b)) / 2;
1581 bt->vsync = ((hdmi_read(sd, 0x2e) & 0x1f) * 256 +
1582 hdmi_read(sd, 0x2f)) / 2;
1583 bt->vbackporch = ((hdmi_read(sd, 0x32) & 0x1f) * 256 +
1584 hdmi_read(sd, 0x33)) / 2;
1585 bt->polarities = ((hdmi_read(sd, 0x05) & 0x10) ? V4L2_DV_VSYNC_POS_POL : 0) |
1586 ((hdmi_read(sd, 0x05) & 0x20) ? V4L2_DV_HSYNC_POS_POL : 0);
1587 if (bt->interlaced == V4L2_DV_INTERLACED) {
1588 bt->height += (hdmi_read(sd, 0x0b) & 0x0f) * 256 +
1589 hdmi_read(sd, 0x0c);
1590 bt->il_vfrontporch = ((hdmi_read(sd, 0x2c) & 0x1f) * 256 +
1591 hdmi_read(sd, 0x2d)) / 2;
1592 bt->il_vsync = ((hdmi_read(sd, 0x30) & 0x1f) * 256 +
1593 hdmi_read(sd, 0x31)) / 2;
1594 bt->il_vbackporch = ((hdmi_read(sd, 0x34) & 0x1f) * 256 +
1595 hdmi_read(sd, 0x35)) / 2;
1596 } else {
1597 bt->il_vfrontporch = 0;
1598 bt->il_vsync = 0;
1599 bt->il_vbackporch = 0;
1600 }
1601 adv7842_fill_optional_dv_timings_fields(sd, timings);
1602 } else {
1603 /* find format
1604 * Since LCVS values are inaccurate [REF_03, p. 339-340],
1605 * stdi2dv_timings() is called with lcvs +-1 if the first attempt fails.
1606 */
1607 if (!stdi2dv_timings(sd, &stdi, timings))
1608 goto found;
1609 stdi.lcvs += 1;
1610 v4l2_dbg(1, debug, sd, "%s: lcvs + 1 = %d\n", __func__, stdi.lcvs);
1611 if (!stdi2dv_timings(sd, &stdi, timings))
1612 goto found;
1613 stdi.lcvs -= 2;
1614 v4l2_dbg(1, debug, sd, "%s: lcvs - 1 = %d\n", __func__, stdi.lcvs);
1615 if (stdi2dv_timings(sd, &stdi, timings)) {
1616 /*
1617 * The STDI block may measure wrong values, especially
1618 * for lcvs and lcf. If the driver can not find any
1619 * valid timing, the STDI block is restarted to measure
1620 * the video timings again. The function will return an
1621 * error, but the restart of STDI will generate a new
1622 * STDI interrupt and the format detection process will
1623 * restart.
1624 */
1625 if (state->restart_stdi_once) {
1626 v4l2_dbg(1, debug, sd, "%s: restart STDI\n", __func__);
1627 /* TODO restart STDI for Sync Channel 2 */
1628 /* enter one-shot mode */
1629 cp_write_and_or(sd, 0x86, 0xf9, 0x00);
1630 /* trigger STDI restart */
1631 cp_write_and_or(sd, 0x86, 0xf9, 0x04);
1632 /* reset to continuous mode */
1633 cp_write_and_or(sd, 0x86, 0xf9, 0x02);
1634 state->restart_stdi_once = false;
1635 return -ENOLINK;
1636 }
1637 v4l2_dbg(1, debug, sd, "%s: format not supported\n", __func__);
1638 return -ERANGE;
1639 }
1640 state->restart_stdi_once = true;
1641 }
1642 found:
1643
1644 if (debug > 1)
1645 v4l2_print_dv_timings(sd->name, "adv7842_query_dv_timings:",
1646 timings, true);
1647 return 0;
1648 }
1649
1650 static int adv7842_s_dv_timings(struct v4l2_subdev *sd,
1651 struct v4l2_dv_timings *timings)
1652 {
1653 struct adv7842_state *state = to_state(sd);
1654 struct v4l2_bt_timings *bt;
1655 int err;
1656
1657 v4l2_dbg(1, debug, sd, "%s:\n", __func__);
1658
1659 if (state->mode == ADV7842_MODE_SDP)
1660 return -ENODATA;
1661
1662 if (v4l2_match_dv_timings(&state->timings, timings, 0)) {
1663 v4l2_dbg(1, debug, sd, "%s: no change\n", __func__);
1664 return 0;
1665 }
1666
1667 bt = &timings->bt;
1668
1669 if (!v4l2_valid_dv_timings(timings, adv7842_get_dv_timings_cap(sd),
1670 adv7842_check_dv_timings, NULL))
1671 return -ERANGE;
1672
1673 adv7842_fill_optional_dv_timings_fields(sd, timings);
1674
1675 state->timings = *timings;
1676
1677 cp_write(sd, 0x91, bt->interlaced ? 0x40 : 0x00);
1678
1679 /* Use prim_mode and vid_std when available */
1680 err = configure_predefined_video_timings(sd, timings);
1681 if (err) {
1682 /* custom settings when the video format
1683 does not have prim_mode/vid_std */
1684 configure_custom_video_timings(sd, bt);
1685 }
1686
1687 set_rgb_quantization_range(sd);
1688
1689
1690 if (debug > 1)
1691 v4l2_print_dv_timings(sd->name, "adv7842_s_dv_timings: ",
1692 timings, true);
1693 return 0;
1694 }
1695
1696 static int adv7842_g_dv_timings(struct v4l2_subdev *sd,
1697 struct v4l2_dv_timings *timings)
1698 {
1699 struct adv7842_state *state = to_state(sd);
1700
1701 if (state->mode == ADV7842_MODE_SDP)
1702 return -ENODATA;
1703 *timings = state->timings;
1704 return 0;
1705 }
1706
1707 static void enable_input(struct v4l2_subdev *sd)
1708 {
1709 struct adv7842_state *state = to_state(sd);
1710
1711 set_rgb_quantization_range(sd);
1712 switch (state->mode) {
1713 case ADV7842_MODE_SDP:
1714 case ADV7842_MODE_COMP:
1715 case ADV7842_MODE_RGB:
1716 io_write(sd, 0x15, 0xb0); /* Disable Tristate of Pins (no audio) */
1717 break;
1718 case ADV7842_MODE_HDMI:
1719 hdmi_write(sd, 0x01, 0x00); /* Enable HDMI clock terminators */
1720 io_write(sd, 0x15, 0xa0); /* Disable Tristate of Pins */
1721 hdmi_write_and_or(sd, 0x1a, 0xef, 0x00); /* Unmute audio */
1722 break;
1723 default:
1724 v4l2_dbg(2, debug, sd, "%s: Unknown mode %d\n",
1725 __func__, state->mode);
1726 break;
1727 }
1728 }
1729
1730 static void disable_input(struct v4l2_subdev *sd)
1731 {
1732 hdmi_write_and_or(sd, 0x1a, 0xef, 0x10); /* Mute audio [REF_01, c. 2.2.2] */
1733 msleep(16); /* 512 samples with >= 32 kHz sample rate [REF_03, c. 8.29] */
1734 io_write(sd, 0x15, 0xbe); /* Tristate all outputs from video core */
1735 hdmi_write(sd, 0x01, 0x78); /* Disable HDMI clock terminators */
1736 }
1737
1738 static void sdp_csc_coeff(struct v4l2_subdev *sd,
1739 const struct adv7842_sdp_csc_coeff *c)
1740 {
1741 /* csc auto/manual */
1742 sdp_io_write_and_or(sd, 0xe0, 0xbf, c->manual ? 0x00 : 0x40);
1743
1744 if (!c->manual)
1745 return;
1746
1747 /* csc scaling */
1748 sdp_io_write_and_or(sd, 0xe0, 0x7f, c->scaling == 2 ? 0x80 : 0x00);
1749
1750 /* A coeff */
1751 sdp_io_write_and_or(sd, 0xe0, 0xe0, c->A1 >> 8);
1752 sdp_io_write(sd, 0xe1, c->A1);
1753 sdp_io_write_and_or(sd, 0xe2, 0xe0, c->A2 >> 8);
1754 sdp_io_write(sd, 0xe3, c->A2);
1755 sdp_io_write_and_or(sd, 0xe4, 0xe0, c->A3 >> 8);
1756 sdp_io_write(sd, 0xe5, c->A3);
1757
1758 /* A scale */
1759 sdp_io_write_and_or(sd, 0xe6, 0x80, c->A4 >> 8);
1760 sdp_io_write(sd, 0xe7, c->A4);
1761
1762 /* B coeff */
1763 sdp_io_write_and_or(sd, 0xe8, 0xe0, c->B1 >> 8);
1764 sdp_io_write(sd, 0xe9, c->B1);
1765 sdp_io_write_and_or(sd, 0xea, 0xe0, c->B2 >> 8);
1766 sdp_io_write(sd, 0xeb, c->B2);
1767 sdp_io_write_and_or(sd, 0xec, 0xe0, c->B3 >> 8);
1768 sdp_io_write(sd, 0xed, c->B3);
1769
1770 /* B scale */
1771 sdp_io_write_and_or(sd, 0xee, 0x80, c->B4 >> 8);
1772 sdp_io_write(sd, 0xef, c->B4);
1773
1774 /* C coeff */
1775 sdp_io_write_and_or(sd, 0xf0, 0xe0, c->C1 >> 8);
1776 sdp_io_write(sd, 0xf1, c->C1);
1777 sdp_io_write_and_or(sd, 0xf2, 0xe0, c->C2 >> 8);
1778 sdp_io_write(sd, 0xf3, c->C2);
1779 sdp_io_write_and_or(sd, 0xf4, 0xe0, c->C3 >> 8);
1780 sdp_io_write(sd, 0xf5, c->C3);
1781
1782 /* C scale */
1783 sdp_io_write_and_or(sd, 0xf6, 0x80, c->C4 >> 8);
1784 sdp_io_write(sd, 0xf7, c->C4);
1785 }
1786
1787 static void select_input(struct v4l2_subdev *sd,
1788 enum adv7842_vid_std_select vid_std_select)
1789 {
1790 struct adv7842_state *state = to_state(sd);
1791
1792 switch (state->mode) {
1793 case ADV7842_MODE_SDP:
1794 io_write(sd, 0x00, vid_std_select); /* video std: CVBS or YC mode */
1795 io_write(sd, 0x01, 0); /* prim mode */
1796 /* enable embedded syncs for auto graphics mode */
1797 cp_write_and_or(sd, 0x81, 0xef, 0x10);
1798
1799 afe_write(sd, 0x00, 0x00); /* power up ADC */
1800 afe_write(sd, 0xc8, 0x00); /* phase control */
1801
1802 io_write(sd, 0xdd, 0x90); /* Manual 2x output clock */
1803 /* script says register 0xde, which don't exist in manual */
1804
1805 /* Manual analog input muxing mode, CVBS (6.4)*/
1806 afe_write_and_or(sd, 0x02, 0x7f, 0x80);
1807 if (vid_std_select == ADV7842_SDP_VID_STD_CVBS_SD_4x1) {
1808 afe_write(sd, 0x03, 0xa0); /* ADC0 to AIN10 (CVBS), ADC1 N/C*/
1809 afe_write(sd, 0x04, 0x00); /* ADC2 N/C,ADC3 N/C*/
1810 } else {
1811 afe_write(sd, 0x03, 0xa0); /* ADC0 to AIN10 (CVBS), ADC1 N/C*/
1812 afe_write(sd, 0x04, 0xc0); /* ADC2 to AIN12, ADC3 N/C*/
1813 }
1814 afe_write(sd, 0x0c, 0x1f); /* ADI recommend write */
1815 afe_write(sd, 0x12, 0x63); /* ADI recommend write */
1816
1817 sdp_io_write(sd, 0xb2, 0x60); /* Disable AV codes */
1818 sdp_io_write(sd, 0xc8, 0xe3); /* Disable Ancillary data */
1819
1820 /* SDP recommended settings */
1821 sdp_write(sd, 0x00, 0x3F); /* Autodetect PAL NTSC (not SECAM) */
1822 sdp_write(sd, 0x01, 0x00); /* Pedestal Off */
1823
1824 sdp_write(sd, 0x03, 0xE4); /* Manual VCR Gain Luma 0x40B */
1825 sdp_write(sd, 0x04, 0x0B); /* Manual Luma setting */
1826 sdp_write(sd, 0x05, 0xC3); /* Manual Chroma setting 0x3FE */
1827 sdp_write(sd, 0x06, 0xFE); /* Manual Chroma setting */
1828 sdp_write(sd, 0x12, 0x0D); /* Frame TBC,I_P, 3D comb enabled */
1829 sdp_write(sd, 0xA7, 0x00); /* ADI Recommended Write */
1830 sdp_io_write(sd, 0xB0, 0x00); /* Disable H and v blanking */
1831
1832 /* deinterlacer enabled and 3D comb */
1833 sdp_write_and_or(sd, 0x12, 0xf6, 0x09);
1834
1835 break;
1836
1837 case ADV7842_MODE_COMP:
1838 case ADV7842_MODE_RGB:
1839 /* Automatic analog input muxing mode */
1840 afe_write_and_or(sd, 0x02, 0x7f, 0x00);
1841 /* set mode and select free run resolution */
1842 io_write(sd, 0x00, vid_std_select); /* video std */
1843 io_write(sd, 0x01, 0x02); /* prim mode */
1844 cp_write_and_or(sd, 0x81, 0xef, 0x10); /* enable embedded syncs
1845 for auto graphics mode */
1846
1847 afe_write(sd, 0x00, 0x00); /* power up ADC */
1848 afe_write(sd, 0xc8, 0x00); /* phase control */
1849 if (state->mode == ADV7842_MODE_COMP) {
1850 /* force to YCrCb */
1851 io_write_and_or(sd, 0x02, 0x0f, 0x60);
1852 } else {
1853 /* force to RGB */
1854 io_write_and_or(sd, 0x02, 0x0f, 0x10);
1855 }
1856
1857 /* set ADI recommended settings for digitizer */
1858 /* "ADV7842 Register Settings Recommendations
1859 * (rev. 1.8, November 2010)" p. 9. */
1860 afe_write(sd, 0x0c, 0x1f); /* ADC Range improvement */
1861 afe_write(sd, 0x12, 0x63); /* ADC Range improvement */
1862
1863 /* set to default gain for RGB */
1864 cp_write(sd, 0x73, 0x10);
1865 cp_write(sd, 0x74, 0x04);
1866 cp_write(sd, 0x75, 0x01);
1867 cp_write(sd, 0x76, 0x00);
1868
1869 cp_write(sd, 0x3e, 0x04); /* CP core pre-gain control */
1870 cp_write(sd, 0xc3, 0x39); /* CP coast control. Graphics mode */
1871 cp_write(sd, 0x40, 0x5c); /* CP core pre-gain control. Graphics mode */
1872 break;
1873
1874 case ADV7842_MODE_HDMI:
1875 /* Automatic analog input muxing mode */
1876 afe_write_and_or(sd, 0x02, 0x7f, 0x00);
1877 /* set mode and select free run resolution */
1878 if (state->hdmi_port_a)
1879 hdmi_write(sd, 0x00, 0x02); /* select port A */
1880 else
1881 hdmi_write(sd, 0x00, 0x03); /* select port B */
1882 io_write(sd, 0x00, vid_std_select); /* video std */
1883 io_write(sd, 0x01, 5); /* prim mode */
1884 cp_write_and_or(sd, 0x81, 0xef, 0x00); /* disable embedded syncs
1885 for auto graphics mode */
1886
1887 /* set ADI recommended settings for HDMI: */
1888 /* "ADV7842 Register Settings Recommendations
1889 * (rev. 1.8, November 2010)" p. 3. */
1890 hdmi_write(sd, 0xc0, 0x00);
1891 hdmi_write(sd, 0x0d, 0x34); /* ADI recommended write */
1892 hdmi_write(sd, 0x3d, 0x10); /* ADI recommended write */
1893 hdmi_write(sd, 0x44, 0x85); /* TMDS PLL optimization */
1894 hdmi_write(sd, 0x46, 0x1f); /* ADI recommended write */
1895 hdmi_write(sd, 0x57, 0xb6); /* TMDS PLL optimization */
1896 hdmi_write(sd, 0x58, 0x03); /* TMDS PLL optimization */
1897 hdmi_write(sd, 0x60, 0x88); /* TMDS PLL optimization */
1898 hdmi_write(sd, 0x61, 0x88); /* TMDS PLL optimization */
1899 hdmi_write(sd, 0x6c, 0x18); /* Disable ISRC clearing bit,
1900 Improve robustness */
1901 hdmi_write(sd, 0x75, 0x10); /* DDC drive strength */
1902 hdmi_write(sd, 0x85, 0x1f); /* equaliser */
1903 hdmi_write(sd, 0x87, 0x70); /* ADI recommended write */
1904 hdmi_write(sd, 0x89, 0x04); /* equaliser */
1905 hdmi_write(sd, 0x8a, 0x1e); /* equaliser */
1906 hdmi_write(sd, 0x93, 0x04); /* equaliser */
1907 hdmi_write(sd, 0x94, 0x1e); /* equaliser */
1908 hdmi_write(sd, 0x99, 0xa1); /* ADI recommended write */
1909 hdmi_write(sd, 0x9b, 0x09); /* ADI recommended write */
1910 hdmi_write(sd, 0x9d, 0x02); /* equaliser */
1911
1912 afe_write(sd, 0x00, 0xff); /* power down ADC */
1913 afe_write(sd, 0xc8, 0x40); /* phase control */
1914
1915 /* set to default gain for HDMI */
1916 cp_write(sd, 0x73, 0x10);
1917 cp_write(sd, 0x74, 0x04);
1918 cp_write(sd, 0x75, 0x01);
1919 cp_write(sd, 0x76, 0x00);
1920
1921 /* reset ADI recommended settings for digitizer */
1922 /* "ADV7842 Register Settings Recommendations
1923 * (rev. 2.5, June 2010)" p. 17. */
1924 afe_write(sd, 0x12, 0xfb); /* ADC noise shaping filter controls */
1925 afe_write(sd, 0x0c, 0x0d); /* CP core gain controls */
1926 cp_write(sd, 0x3e, 0x00); /* CP core pre-gain control */
1927
1928 /* CP coast control */
1929 cp_write(sd, 0xc3, 0x33); /* Component mode */
1930
1931 /* color space conversion, autodetect color space */
1932 io_write_and_or(sd, 0x02, 0x0f, 0xf0);
1933 break;
1934
1935 default:
1936 v4l2_dbg(2, debug, sd, "%s: Unknown mode %d\n",
1937 __func__, state->mode);
1938 break;
1939 }
1940 }
1941
1942 static int adv7842_s_routing(struct v4l2_subdev *sd,
1943 u32 input, u32 output, u32 config)
1944 {
1945 struct adv7842_state *state = to_state(sd);
1946
1947 v4l2_dbg(2, debug, sd, "%s: input %d\n", __func__, input);
1948
1949 switch (input) {
1950 case ADV7842_SELECT_HDMI_PORT_A:
1951 state->mode = ADV7842_MODE_HDMI;
1952 state->vid_std_select = ADV7842_HDMI_COMP_VID_STD_HD_1250P;
1953 state->hdmi_port_a = true;
1954 break;
1955 case ADV7842_SELECT_HDMI_PORT_B:
1956 state->mode = ADV7842_MODE_HDMI;
1957 state->vid_std_select = ADV7842_HDMI_COMP_VID_STD_HD_1250P;
1958 state->hdmi_port_a = false;
1959 break;
1960 case ADV7842_SELECT_VGA_COMP:
1961 state->mode = ADV7842_MODE_COMP;
1962 state->vid_std_select = ADV7842_RGB_VID_STD_AUTO_GRAPH_MODE;
1963 break;
1964 case ADV7842_SELECT_VGA_RGB:
1965 state->mode = ADV7842_MODE_RGB;
1966 state->vid_std_select = ADV7842_RGB_VID_STD_AUTO_GRAPH_MODE;
1967 break;
1968 case ADV7842_SELECT_SDP_CVBS:
1969 state->mode = ADV7842_MODE_SDP;
1970 state->vid_std_select = ADV7842_SDP_VID_STD_CVBS_SD_4x1;
1971 break;
1972 case ADV7842_SELECT_SDP_YC:
1973 state->mode = ADV7842_MODE_SDP;
1974 state->vid_std_select = ADV7842_SDP_VID_STD_YC_SD4_x1;
1975 break;
1976 default:
1977 return -EINVAL;
1978 }
1979
1980 disable_input(sd);
1981 select_input(sd, state->vid_std_select);
1982 enable_input(sd);
1983
1984 v4l2_subdev_notify_event(sd, &adv7842_ev_fmt);
1985
1986 return 0;
1987 }
1988
1989 static int adv7842_enum_mbus_code(struct v4l2_subdev *sd,
1990 struct v4l2_subdev_pad_config *cfg,
1991 struct v4l2_subdev_mbus_code_enum *code)
1992 {
1993 if (code->index >= ARRAY_SIZE(adv7842_formats))
1994 return -EINVAL;
1995 code->code = adv7842_formats[code->index].code;
1996 return 0;
1997 }
1998
1999 static void adv7842_fill_format(struct adv7842_state *state,
2000 struct v4l2_mbus_framefmt *format)
2001 {
2002 memset(format, 0, sizeof(*format));
2003
2004 format->width = state->timings.bt.width;
2005 format->height = state->timings.bt.height;
2006 format->field = V4L2_FIELD_NONE;
2007 format->colorspace = V4L2_COLORSPACE_SRGB;
2008
2009 if (state->timings.bt.flags & V4L2_DV_FL_IS_CE_VIDEO)
2010 format->colorspace = (state->timings.bt.height <= 576) ?
2011 V4L2_COLORSPACE_SMPTE170M : V4L2_COLORSPACE_REC709;
2012 }
2013
2014 /*
2015 * Compute the op_ch_sel value required to obtain on the bus the component order
2016 * corresponding to the selected format taking into account bus reordering
2017 * applied by the board at the output of the device.
2018 *
2019 * The following table gives the op_ch_value from the format component order
2020 * (expressed as op_ch_sel value in column) and the bus reordering (expressed as
2021 * adv7842_bus_order value in row).
2022 *
2023 * | GBR(0) GRB(1) BGR(2) RGB(3) BRG(4) RBG(5)
2024 * ----------+-------------------------------------------------
2025 * RGB (NOP) | GBR GRB BGR RGB BRG RBG
2026 * GRB (1-2) | BGR RGB GBR GRB RBG BRG
2027 * RBG (2-3) | GRB GBR BRG RBG BGR RGB
2028 * BGR (1-3) | RBG BRG RGB BGR GRB GBR
2029 * BRG (ROR) | BRG RBG GRB GBR RGB BGR
2030 * GBR (ROL) | RGB BGR RBG BRG GBR GRB
2031 */
2032 static unsigned int adv7842_op_ch_sel(struct adv7842_state *state)
2033 {
2034 #define _SEL(a, b, c, d, e, f) { \
2035 ADV7842_OP_CH_SEL_##a, ADV7842_OP_CH_SEL_##b, ADV7842_OP_CH_SEL_##c, \
2036 ADV7842_OP_CH_SEL_##d, ADV7842_OP_CH_SEL_##e, ADV7842_OP_CH_SEL_##f }
2037 #define _BUS(x) [ADV7842_BUS_ORDER_##x]
2038
2039 static const unsigned int op_ch_sel[6][6] = {
2040 _BUS(RGB) /* NOP */ = _SEL(GBR, GRB, BGR, RGB, BRG, RBG),
2041 _BUS(GRB) /* 1-2 */ = _SEL(BGR, RGB, GBR, GRB, RBG, BRG),
2042 _BUS(RBG) /* 2-3 */ = _SEL(GRB, GBR, BRG, RBG, BGR, RGB),
2043 _BUS(BGR) /* 1-3 */ = _SEL(RBG, BRG, RGB, BGR, GRB, GBR),
2044 _BUS(BRG) /* ROR */ = _SEL(BRG, RBG, GRB, GBR, RGB, BGR),
2045 _BUS(GBR) /* ROL */ = _SEL(RGB, BGR, RBG, BRG, GBR, GRB),
2046 };
2047
2048 return op_ch_sel[state->pdata.bus_order][state->format->op_ch_sel >> 5];
2049 }
2050
2051 static void adv7842_setup_format(struct adv7842_state *state)
2052 {
2053 struct v4l2_subdev *sd = &state->sd;
2054
2055 io_write_clr_set(sd, 0x02, 0x02,
2056 state->format->rgb_out ? ADV7842_RGB_OUT : 0);
2057 io_write(sd, 0x03, state->format->op_format_sel |
2058 state->pdata.op_format_mode_sel);
2059 io_write_clr_set(sd, 0x04, 0xe0, adv7842_op_ch_sel(state));
2060 io_write_clr_set(sd, 0x05, 0x01,
2061 state->format->swap_cb_cr ? ADV7842_OP_SWAP_CB_CR : 0);
2062 }
2063
2064 static int adv7842_get_format(struct v4l2_subdev *sd,
2065 struct v4l2_subdev_pad_config *cfg,
2066 struct v4l2_subdev_format *format)
2067 {
2068 struct adv7842_state *state = to_state(sd);
2069
2070 if (format->pad != ADV7842_PAD_SOURCE)
2071 return -EINVAL;
2072
2073 if (state->mode == ADV7842_MODE_SDP) {
2074 /* SPD block */
2075 if (!(sdp_read(sd, 0x5a) & 0x01))
2076 return -EINVAL;
2077 format->format.code = MEDIA_BUS_FMT_YUYV8_2X8;
2078 format->format.width = 720;
2079 /* valid signal */
2080 if (state->norm & V4L2_STD_525_60)
2081 format->format.height = 480;
2082 else
2083 format->format.height = 576;
2084 format->format.colorspace = V4L2_COLORSPACE_SMPTE170M;
2085 return 0;
2086 }
2087
2088 adv7842_fill_format(state, &format->format);
2089
2090 if (format->which == V4L2_SUBDEV_FORMAT_TRY) {
2091 struct v4l2_mbus_framefmt *fmt;
2092
2093 fmt = v4l2_subdev_get_try_format(sd, cfg, format->pad);
2094 format->format.code = fmt->code;
2095 } else {
2096 format->format.code = state->format->code;
2097 }
2098
2099 return 0;
2100 }
2101
2102 static int adv7842_set_format(struct v4l2_subdev *sd,
2103 struct v4l2_subdev_pad_config *cfg,
2104 struct v4l2_subdev_format *format)
2105 {
2106 struct adv7842_state *state = to_state(sd);
2107 const struct adv7842_format_info *info;
2108
2109 if (format->pad != ADV7842_PAD_SOURCE)
2110 return -EINVAL;
2111
2112 if (state->mode == ADV7842_MODE_SDP)
2113 return adv7842_get_format(sd, cfg, format);
2114
2115 info = adv7842_format_info(state, format->format.code);
2116 if (info == NULL)
2117 info = adv7842_format_info(state, MEDIA_BUS_FMT_YUYV8_2X8);
2118
2119 adv7842_fill_format(state, &format->format);
2120 format->format.code = info->code;
2121
2122 if (format->which == V4L2_SUBDEV_FORMAT_TRY) {
2123 struct v4l2_mbus_framefmt *fmt;
2124
2125 fmt = v4l2_subdev_get_try_format(sd, cfg, format->pad);
2126 fmt->code = format->format.code;
2127 } else {
2128 state->format = info;
2129 adv7842_setup_format(state);
2130 }
2131
2132 return 0;
2133 }
2134
2135 static void adv7842_irq_enable(struct v4l2_subdev *sd, bool enable)
2136 {
2137 if (enable) {
2138 /* Enable SSPD, STDI and CP locked/unlocked interrupts */
2139 io_write(sd, 0x46, 0x9c);
2140 /* ESDP_50HZ_DET interrupt */
2141 io_write(sd, 0x5a, 0x10);
2142 /* Enable CABLE_DET_A/B_ST (+5v) interrupt */
2143 io_write(sd, 0x73, 0x03);
2144 /* Enable V_LOCKED and DE_REGEN_LCK interrupts */
2145 io_write(sd, 0x78, 0x03);
2146 /* Enable SDP Standard Detection Change and SDP Video Detected */
2147 io_write(sd, 0xa0, 0x09);
2148 /* Enable HDMI_MODE interrupt */
2149 io_write(sd, 0x69, 0x08);
2150 } else {
2151 io_write(sd, 0x46, 0x0);
2152 io_write(sd, 0x5a, 0x0);
2153 io_write(sd, 0x73, 0x0);
2154 io_write(sd, 0x78, 0x0);
2155 io_write(sd, 0xa0, 0x0);
2156 io_write(sd, 0x69, 0x0);
2157 }
2158 }
2159
2160 static int adv7842_isr(struct v4l2_subdev *sd, u32 status, bool *handled)
2161 {
2162 struct adv7842_state *state = to_state(sd);
2163 u8 fmt_change_cp, fmt_change_digital, fmt_change_sdp;
2164 u8 irq_status[6];
2165
2166 adv7842_irq_enable(sd, false);
2167
2168 /* read status */
2169 irq_status[0] = io_read(sd, 0x43);
2170 irq_status[1] = io_read(sd, 0x57);
2171 irq_status[2] = io_read(sd, 0x70);
2172 irq_status[3] = io_read(sd, 0x75);
2173 irq_status[4] = io_read(sd, 0x9d);
2174 irq_status[5] = io_read(sd, 0x66);
2175
2176 /* and clear */
2177 if (irq_status[0])
2178 io_write(sd, 0x44, irq_status[0]);
2179 if (irq_status[1])
2180 io_write(sd, 0x58, irq_status[1]);
2181 if (irq_status[2])
2182 io_write(sd, 0x71, irq_status[2]);
2183 if (irq_status[3])
2184 io_write(sd, 0x76, irq_status[3]);
2185 if (irq_status[4])
2186 io_write(sd, 0x9e, irq_status[4]);
2187 if (irq_status[5])
2188 io_write(sd, 0x67, irq_status[5]);
2189
2190 adv7842_irq_enable(sd, true);
2191
2192 v4l2_dbg(1, debug, sd, "%s: irq %x, %x, %x, %x, %x, %x\n", __func__,
2193 irq_status[0], irq_status[1], irq_status[2],
2194 irq_status[3], irq_status[4], irq_status[5]);
2195
2196 /* format change CP */
2197 fmt_change_cp = irq_status[0] & 0x9c;
2198
2199 /* format change SDP */
2200 if (state->mode == ADV7842_MODE_SDP)
2201 fmt_change_sdp = (irq_status[1] & 0x30) | (irq_status[4] & 0x09);
2202 else
2203 fmt_change_sdp = 0;
2204
2205 /* digital format CP */
2206 if (is_digital_input(sd))
2207 fmt_change_digital = irq_status[3] & 0x03;
2208 else
2209 fmt_change_digital = 0;
2210
2211 /* format change */
2212 if (fmt_change_cp || fmt_change_digital || fmt_change_sdp) {
2213 v4l2_dbg(1, debug, sd,
2214 "%s: fmt_change_cp = 0x%x, fmt_change_digital = 0x%x, fmt_change_sdp = 0x%x\n",
2215 __func__, fmt_change_cp, fmt_change_digital,
2216 fmt_change_sdp);
2217 v4l2_subdev_notify_event(sd, &adv7842_ev_fmt);
2218 if (handled)
2219 *handled = true;
2220 }
2221
2222 /* HDMI/DVI mode */
2223 if (irq_status[5] & 0x08) {
2224 v4l2_dbg(1, debug, sd, "%s: irq %s mode\n", __func__,
2225 (io_read(sd, 0x65) & 0x08) ? "HDMI" : "DVI");
2226 set_rgb_quantization_range(sd);
2227 if (handled)
2228 *handled = true;
2229 }
2230
2231 /* tx 5v detect */
2232 if (irq_status[2] & 0x3) {
2233 v4l2_dbg(1, debug, sd, "%s: irq tx_5v\n", __func__);
2234 adv7842_s_detect_tx_5v_ctrl(sd);
2235 if (handled)
2236 *handled = true;
2237 }
2238 return 0;
2239 }
2240
2241 static int adv7842_get_edid(struct v4l2_subdev *sd, struct v4l2_edid *edid)
2242 {
2243 struct adv7842_state *state = to_state(sd);
2244 u8 *data = NULL;
2245
2246 memset(edid->reserved, 0, sizeof(edid->reserved));
2247
2248 switch (edid->pad) {
2249 case ADV7842_EDID_PORT_A:
2250 case ADV7842_EDID_PORT_B:
2251 if (state->hdmi_edid.present & (0x04 << edid->pad))
2252 data = state->hdmi_edid.edid;
2253 break;
2254 case ADV7842_EDID_PORT_VGA:
2255 if (state->vga_edid.present)
2256 data = state->vga_edid.edid;
2257 break;
2258 default:
2259 return -EINVAL;
2260 }
2261
2262 if (edid->start_block == 0 && edid->blocks == 0) {
2263 edid->blocks = data ? 2 : 0;
2264 return 0;
2265 }
2266
2267 if (!data)
2268 return -ENODATA;
2269
2270 if (edid->start_block >= 2)
2271 return -EINVAL;
2272
2273 if (edid->start_block + edid->blocks > 2)
2274 edid->blocks = 2 - edid->start_block;
2275
2276 memcpy(edid->edid, data + edid->start_block * 128, edid->blocks * 128);
2277
2278 return 0;
2279 }
2280
2281 static int adv7842_set_edid(struct v4l2_subdev *sd, struct v4l2_edid *e)
2282 {
2283 struct adv7842_state *state = to_state(sd);
2284 int err = 0;
2285
2286 memset(e->reserved, 0, sizeof(e->reserved));
2287
2288 if (e->pad > ADV7842_EDID_PORT_VGA)
2289 return -EINVAL;
2290 if (e->start_block != 0)
2291 return -EINVAL;
2292 if (e->blocks > 2) {
2293 e->blocks = 2;
2294 return -E2BIG;
2295 }
2296
2297 /* todo, per edid */
2298 state->aspect_ratio = v4l2_calc_aspect_ratio(e->edid[0x15],
2299 e->edid[0x16]);
2300
2301 switch (e->pad) {
2302 case ADV7842_EDID_PORT_VGA:
2303 memset(&state->vga_edid.edid, 0, 256);
2304 state->vga_edid.present = e->blocks ? 0x1 : 0x0;
2305 memcpy(&state->vga_edid.edid, e->edid, 128 * e->blocks);
2306 err = edid_write_vga_segment(sd);
2307 break;
2308 case ADV7842_EDID_PORT_A:
2309 case ADV7842_EDID_PORT_B:
2310 memset(&state->hdmi_edid.edid, 0, 256);
2311 if (e->blocks)
2312 state->hdmi_edid.present |= 0x04 << e->pad;
2313 else
2314 state->hdmi_edid.present &= ~(0x04 << e->pad);
2315 memcpy(&state->hdmi_edid.edid, e->edid, 128 * e->blocks);
2316 err = edid_write_hdmi_segment(sd, e->pad);
2317 break;
2318 default:
2319 return -EINVAL;
2320 }
2321 if (err < 0)
2322 v4l2_err(sd, "error %d writing edid on port %d\n", err, e->pad);
2323 return err;
2324 }
2325
2326 struct adv7842_cfg_read_infoframe {
2327 const char *desc;
2328 u8 present_mask;
2329 u8 head_addr;
2330 u8 payload_addr;
2331 };
2332
2333 static void log_infoframe(struct v4l2_subdev *sd, struct adv7842_cfg_read_infoframe *cri)
2334 {
2335 int i;
2336 u8 buffer[32];
2337 union hdmi_infoframe frame;
2338 u8 len;
2339 struct i2c_client *client = v4l2_get_subdevdata(sd);
2340 struct device *dev = &client->dev;
2341
2342 if (!(io_read(sd, 0x60) & cri->present_mask)) {
2343 v4l2_info(sd, "%s infoframe not received\n", cri->desc);
2344 return;
2345 }
2346
2347 for (i = 0; i < 3; i++)
2348 buffer[i] = infoframe_read(sd, cri->head_addr + i);
2349
2350 len = buffer[2] + 1;
2351
2352 if (len + 3 > sizeof(buffer)) {
2353 v4l2_err(sd, "%s: invalid %s infoframe length %d\n", __func__, cri->desc, len);
2354 return;
2355 }
2356
2357 for (i = 0; i < len; i++)
2358 buffer[i + 3] = infoframe_read(sd, cri->payload_addr + i);
2359
2360 if (hdmi_infoframe_unpack(&frame, buffer) < 0) {
2361 v4l2_err(sd, "%s: unpack of %s infoframe failed\n", __func__, cri->desc);
2362 return;
2363 }
2364
2365 hdmi_infoframe_log(KERN_INFO, dev, &frame);
2366 }
2367
2368 static void adv7842_log_infoframes(struct v4l2_subdev *sd)
2369 {
2370 int i;
2371 struct adv7842_cfg_read_infoframe cri[] = {
2372 { "AVI", 0x01, 0xe0, 0x00 },
2373 { "Audio", 0x02, 0xe3, 0x1c },
2374 { "SDP", 0x04, 0xe6, 0x2a },
2375 { "Vendor", 0x10, 0xec, 0x54 }
2376 };
2377
2378 if (!(hdmi_read(sd, 0x05) & 0x80)) {
2379 v4l2_info(sd, "receive DVI-D signal, no infoframes\n");
2380 return;
2381 }
2382
2383 for (i = 0; i < ARRAY_SIZE(cri); i++)
2384 log_infoframe(sd, &cri[i]);
2385 }
2386
2387 static const char * const prim_mode_txt[] = {
2388 "SDP",
2389 "Component",
2390 "Graphics",
2391 "Reserved",
2392 "CVBS & HDMI AUDIO",
2393 "HDMI-Comp",
2394 "HDMI-GR",
2395 "Reserved",
2396 "Reserved",
2397 "Reserved",
2398 "Reserved",
2399 "Reserved",
2400 "Reserved",
2401 "Reserved",
2402 "Reserved",
2403 "Reserved",
2404 };
2405
2406 static int adv7842_sdp_log_status(struct v4l2_subdev *sd)
2407 {
2408 /* SDP (Standard definition processor) block */
2409 u8 sdp_signal_detected = sdp_read(sd, 0x5A) & 0x01;
2410
2411 v4l2_info(sd, "Chip powered %s\n", no_power(sd) ? "off" : "on");
2412 v4l2_info(sd, "Prim-mode = 0x%x, video std = 0x%x\n",
2413 io_read(sd, 0x01) & 0x0f, io_read(sd, 0x00) & 0x3f);
2414
2415 v4l2_info(sd, "SDP: free run: %s\n",
2416 (sdp_read(sd, 0x56) & 0x01) ? "on" : "off");
2417 v4l2_info(sd, "SDP: %s\n", sdp_signal_detected ?
2418 "valid SD/PR signal detected" : "invalid/no signal");
2419 if (sdp_signal_detected) {
2420 static const char * const sdp_std_txt[] = {
2421 "NTSC-M/J",
2422 "1?",
2423 "NTSC-443",
2424 "60HzSECAM",
2425 "PAL-M",
2426 "5?",
2427 "PAL-60",
2428 "7?", "8?", "9?", "a?", "b?",
2429 "PAL-CombN",
2430 "d?",
2431 "PAL-BGHID",
2432 "SECAM"
2433 };
2434 v4l2_info(sd, "SDP: standard %s\n",
2435 sdp_std_txt[sdp_read(sd, 0x52) & 0x0f]);
2436 v4l2_info(sd, "SDP: %s\n",
2437 (sdp_read(sd, 0x59) & 0x08) ? "50Hz" : "60Hz");
2438 v4l2_info(sd, "SDP: %s\n",
2439 (sdp_read(sd, 0x57) & 0x08) ? "Interlaced" : "Progressive");
2440 v4l2_info(sd, "SDP: deinterlacer %s\n",
2441 (sdp_read(sd, 0x12) & 0x08) ? "enabled" : "disabled");
2442 v4l2_info(sd, "SDP: csc %s mode\n",
2443 (sdp_io_read(sd, 0xe0) & 0x40) ? "auto" : "manual");
2444 }
2445 return 0;
2446 }
2447
2448 static int adv7842_cp_log_status(struct v4l2_subdev *sd)
2449 {
2450 /* CP block */
2451 struct adv7842_state *state = to_state(sd);
2452 struct v4l2_dv_timings timings;
2453 u8 reg_io_0x02 = io_read(sd, 0x02);
2454 u8 reg_io_0x21 = io_read(sd, 0x21);
2455 u8 reg_rep_0x77 = rep_read(sd, 0x77);
2456 u8 reg_rep_0x7d = rep_read(sd, 0x7d);
2457 bool audio_pll_locked = hdmi_read(sd, 0x04) & 0x01;
2458 bool audio_sample_packet_detect = hdmi_read(sd, 0x18) & 0x01;
2459 bool audio_mute = io_read(sd, 0x65) & 0x40;
2460
2461 static const char * const csc_coeff_sel_rb[16] = {
2462 "bypassed", "YPbPr601 -> RGB", "reserved", "YPbPr709 -> RGB",
2463 "reserved", "RGB -> YPbPr601", "reserved", "RGB -> YPbPr709",
2464 "reserved", "YPbPr709 -> YPbPr601", "YPbPr601 -> YPbPr709",
2465 "reserved", "reserved", "reserved", "reserved", "manual"
2466 };
2467 static const char * const input_color_space_txt[16] = {
2468 "RGB limited range (16-235)", "RGB full range (0-255)",
2469 "YCbCr Bt.601 (16-235)", "YCbCr Bt.709 (16-235)",
2470 "xvYCC Bt.601", "xvYCC Bt.709",
2471 "YCbCr Bt.601 (0-255)", "YCbCr Bt.709 (0-255)",
2472 "invalid", "invalid", "invalid", "invalid", "invalid",
2473 "invalid", "invalid", "automatic"
2474 };
2475 static const char * const rgb_quantization_range_txt[] = {
2476 "Automatic",
2477 "RGB limited range (16-235)",
2478 "RGB full range (0-255)",
2479 };
2480 static const char * const deep_color_mode_txt[4] = {
2481 "8-bits per channel",
2482 "10-bits per channel",
2483 "12-bits per channel",
2484 "16-bits per channel (not supported)"
2485 };
2486
2487 v4l2_info(sd, "-----Chip status-----\n");
2488 v4l2_info(sd, "Chip power: %s\n", no_power(sd) ? "off" : "on");
2489 v4l2_info(sd, "HDMI/DVI-D port selected: %s\n",
2490 state->hdmi_port_a ? "A" : "B");
2491 v4l2_info(sd, "EDID A %s, B %s\n",
2492 ((reg_rep_0x7d & 0x04) && (reg_rep_0x77 & 0x04)) ?
2493 "enabled" : "disabled",
2494 ((reg_rep_0x7d & 0x08) && (reg_rep_0x77 & 0x08)) ?
2495 "enabled" : "disabled");
2496 v4l2_info(sd, "HPD A %s, B %s\n",
2497 reg_io_0x21 & 0x02 ? "enabled" : "disabled",
2498 reg_io_0x21 & 0x01 ? "enabled" : "disabled");
2499 v4l2_info(sd, "CEC %s\n", !!(cec_read(sd, 0x2a) & 0x01) ?
2500 "enabled" : "disabled");
2501
2502 v4l2_info(sd, "-----Signal status-----\n");
2503 if (state->hdmi_port_a) {
2504 v4l2_info(sd, "Cable detected (+5V power): %s\n",
2505 io_read(sd, 0x6f) & 0x02 ? "true" : "false");
2506 v4l2_info(sd, "TMDS signal detected: %s\n",
2507 (io_read(sd, 0x6a) & 0x02) ? "true" : "false");
2508 v4l2_info(sd, "TMDS signal locked: %s\n",
2509 (io_read(sd, 0x6a) & 0x20) ? "true" : "false");
2510 } else {
2511 v4l2_info(sd, "Cable detected (+5V power):%s\n",
2512 io_read(sd, 0x6f) & 0x01 ? "true" : "false");
2513 v4l2_info(sd, "TMDS signal detected: %s\n",
2514 (io_read(sd, 0x6a) & 0x01) ? "true" : "false");
2515 v4l2_info(sd, "TMDS signal locked: %s\n",
2516 (io_read(sd, 0x6a) & 0x10) ? "true" : "false");
2517 }
2518 v4l2_info(sd, "CP free run: %s\n",
2519 (!!(cp_read(sd, 0xff) & 0x10) ? "on" : "off"));
2520 v4l2_info(sd, "Prim-mode = 0x%x, video std = 0x%x, v_freq = 0x%x\n",
2521 io_read(sd, 0x01) & 0x0f, io_read(sd, 0x00) & 0x3f,
2522 (io_read(sd, 0x01) & 0x70) >> 4);
2523
2524 v4l2_info(sd, "-----Video Timings-----\n");
2525 if (no_cp_signal(sd)) {
2526 v4l2_info(sd, "STDI: not locked\n");
2527 } else {
2528 u32 bl = ((cp_read(sd, 0xb1) & 0x3f) << 8) | cp_read(sd, 0xb2);
2529 u32 lcf = ((cp_read(sd, 0xb3) & 0x7) << 8) | cp_read(sd, 0xb4);
2530 u32 lcvs = cp_read(sd, 0xb3) >> 3;
2531 u32 fcl = ((cp_read(sd, 0xb8) & 0x1f) << 8) | cp_read(sd, 0xb9);
2532 char hs_pol = ((cp_read(sd, 0xb5) & 0x10) ?
2533 ((cp_read(sd, 0xb5) & 0x08) ? '+' : '-') : 'x');
2534 char vs_pol = ((cp_read(sd, 0xb5) & 0x40) ?
2535 ((cp_read(sd, 0xb5) & 0x20) ? '+' : '-') : 'x');
2536 v4l2_info(sd,
2537 "STDI: lcf (frame height - 1) = %d, bl = %d, lcvs (vsync) = %d, fcl = %d, %s, %chsync, %cvsync\n",
2538 lcf, bl, lcvs, fcl,
2539 (cp_read(sd, 0xb1) & 0x40) ?
2540 "interlaced" : "progressive",
2541 hs_pol, vs_pol);
2542 }
2543 if (adv7842_query_dv_timings(sd, &timings))
2544 v4l2_info(sd, "No video detected\n");
2545 else
2546 v4l2_print_dv_timings(sd->name, "Detected format: ",
2547 &timings, true);
2548 v4l2_print_dv_timings(sd->name, "Configured format: ",
2549 &state->timings, true);
2550
2551 if (no_cp_signal(sd))
2552 return 0;
2553
2554 v4l2_info(sd, "-----Color space-----\n");
2555 v4l2_info(sd, "RGB quantization range ctrl: %s\n",
2556 rgb_quantization_range_txt[state->rgb_quantization_range]);
2557 v4l2_info(sd, "Input color space: %s\n",
2558 input_color_space_txt[reg_io_0x02 >> 4]);
2559 v4l2_info(sd, "Output color space: %s %s, saturator %s\n",
2560 (reg_io_0x02 & 0x02) ? "RGB" : "YCbCr",
2561 (reg_io_0x02 & 0x04) ? "(16-235)" : "(0-255)",
2562 ((reg_io_0x02 & 0x04) ^ (reg_io_0x02 & 0x01)) ?
2563 "enabled" : "disabled");
2564 v4l2_info(sd, "Color space conversion: %s\n",
2565 csc_coeff_sel_rb[cp_read(sd, 0xf4) >> 4]);
2566
2567 if (!is_digital_input(sd))
2568 return 0;
2569
2570 v4l2_info(sd, "-----%s status-----\n", is_hdmi(sd) ? "HDMI" : "DVI-D");
2571 v4l2_info(sd, "HDCP encrypted content: %s\n",
2572 (hdmi_read(sd, 0x05) & 0x40) ? "true" : "false");
2573 v4l2_info(sd, "HDCP keys read: %s%s\n",
2574 (hdmi_read(sd, 0x04) & 0x20) ? "yes" : "no",
2575 (hdmi_read(sd, 0x04) & 0x10) ? "ERROR" : "");
2576 if (!is_hdmi(sd))
2577 return 0;
2578
2579 v4l2_info(sd, "Audio: pll %s, samples %s, %s\n",
2580 audio_pll_locked ? "locked" : "not locked",
2581 audio_sample_packet_detect ? "detected" : "not detected",
2582 audio_mute ? "muted" : "enabled");
2583 if (audio_pll_locked && audio_sample_packet_detect) {
2584 v4l2_info(sd, "Audio format: %s\n",
2585 (hdmi_read(sd, 0x07) & 0x40) ? "multi-channel" : "stereo");
2586 }
2587 v4l2_info(sd, "Audio CTS: %u\n", (hdmi_read(sd, 0x5b) << 12) +
2588 (hdmi_read(sd, 0x5c) << 8) +
2589 (hdmi_read(sd, 0x5d) & 0xf0));
2590 v4l2_info(sd, "Audio N: %u\n", ((hdmi_read(sd, 0x5d) & 0x0f) << 16) +
2591 (hdmi_read(sd, 0x5e) << 8) +
2592 hdmi_read(sd, 0x5f));
2593 v4l2_info(sd, "AV Mute: %s\n",
2594 (hdmi_read(sd, 0x04) & 0x40) ? "on" : "off");
2595 v4l2_info(sd, "Deep color mode: %s\n",
2596 deep_color_mode_txt[hdmi_read(sd, 0x0b) >> 6]);
2597
2598 adv7842_log_infoframes(sd);
2599
2600 return 0;
2601 }
2602
2603 static int adv7842_log_status(struct v4l2_subdev *sd)
2604 {
2605 struct adv7842_state *state = to_state(sd);
2606
2607 if (state->mode == ADV7842_MODE_SDP)
2608 return adv7842_sdp_log_status(sd);
2609 return adv7842_cp_log_status(sd);
2610 }
2611
2612 static int adv7842_querystd(struct v4l2_subdev *sd, v4l2_std_id *std)
2613 {
2614 struct adv7842_state *state = to_state(sd);
2615
2616 v4l2_dbg(1, debug, sd, "%s:\n", __func__);
2617
2618 if (state->mode != ADV7842_MODE_SDP)
2619 return -ENODATA;
2620
2621 if (!(sdp_read(sd, 0x5A) & 0x01)) {
2622 *std = 0;
2623 v4l2_dbg(1, debug, sd, "%s: no valid signal\n", __func__);
2624 return 0;
2625 }
2626
2627 switch (sdp_read(sd, 0x52) & 0x0f) {
2628 case 0:
2629 /* NTSC-M/J */
2630 *std &= V4L2_STD_NTSC;
2631 break;
2632 case 2:
2633 /* NTSC-443 */
2634 *std &= V4L2_STD_NTSC_443;
2635 break;
2636 case 3:
2637 /* 60HzSECAM */
2638 *std &= V4L2_STD_SECAM;
2639 break;
2640 case 4:
2641 /* PAL-M */
2642 *std &= V4L2_STD_PAL_M;
2643 break;
2644 case 6:
2645 /* PAL-60 */
2646 *std &= V4L2_STD_PAL_60;
2647 break;
2648 case 0xc:
2649 /* PAL-CombN */
2650 *std &= V4L2_STD_PAL_Nc;
2651 break;
2652 case 0xe:
2653 /* PAL-BGHID */
2654 *std &= V4L2_STD_PAL;
2655 break;
2656 case 0xf:
2657 /* SECAM */
2658 *std &= V4L2_STD_SECAM;
2659 break;
2660 default:
2661 *std &= V4L2_STD_ALL;
2662 break;
2663 }
2664 return 0;
2665 }
2666
2667 static void adv7842_s_sdp_io(struct v4l2_subdev *sd, struct adv7842_sdp_io_sync_adjustment *s)
2668 {
2669 if (s && s->adjust) {
2670 sdp_io_write(sd, 0x94, (s->hs_beg >> 8) & 0xf);
2671 sdp_io_write(sd, 0x95, s->hs_beg & 0xff);
2672 sdp_io_write(sd, 0x96, (s->hs_width >> 8) & 0xf);
2673 sdp_io_write(sd, 0x97, s->hs_width & 0xff);
2674 sdp_io_write(sd, 0x98, (s->de_beg >> 8) & 0xf);
2675 sdp_io_write(sd, 0x99, s->de_beg & 0xff);
2676 sdp_io_write(sd, 0x9a, (s->de_end >> 8) & 0xf);
2677 sdp_io_write(sd, 0x9b, s->de_end & 0xff);
2678 sdp_io_write(sd, 0xa8, s->vs_beg_o);
2679 sdp_io_write(sd, 0xa9, s->vs_beg_e);
2680 sdp_io_write(sd, 0xaa, s->vs_end_o);
2681 sdp_io_write(sd, 0xab, s->vs_end_e);
2682 sdp_io_write(sd, 0xac, s->de_v_beg_o);
2683 sdp_io_write(sd, 0xad, s->de_v_beg_e);
2684 sdp_io_write(sd, 0xae, s->de_v_end_o);
2685 sdp_io_write(sd, 0xaf, s->de_v_end_e);
2686 } else {
2687 /* set to default */
2688 sdp_io_write(sd, 0x94, 0x00);
2689 sdp_io_write(sd, 0x95, 0x00);
2690 sdp_io_write(sd, 0x96, 0x00);
2691 sdp_io_write(sd, 0x97, 0x20);
2692 sdp_io_write(sd, 0x98, 0x00);
2693 sdp_io_write(sd, 0x99, 0x00);
2694 sdp_io_write(sd, 0x9a, 0x00);
2695 sdp_io_write(sd, 0x9b, 0x00);
2696 sdp_io_write(sd, 0xa8, 0x04);
2697 sdp_io_write(sd, 0xa9, 0x04);
2698 sdp_io_write(sd, 0xaa, 0x04);
2699 sdp_io_write(sd, 0xab, 0x04);
2700 sdp_io_write(sd, 0xac, 0x04);
2701 sdp_io_write(sd, 0xad, 0x04);
2702 sdp_io_write(sd, 0xae, 0x04);
2703 sdp_io_write(sd, 0xaf, 0x04);
2704 }
2705 }
2706
2707 static int adv7842_s_std(struct v4l2_subdev *sd, v4l2_std_id norm)
2708 {
2709 struct adv7842_state *state = to_state(sd);
2710 struct adv7842_platform_data *pdata = &state->pdata;
2711
2712 v4l2_dbg(1, debug, sd, "%s:\n", __func__);
2713
2714 if (state->mode != ADV7842_MODE_SDP)
2715 return -ENODATA;
2716
2717 if (norm & V4L2_STD_625_50)
2718 adv7842_s_sdp_io(sd, &pdata->sdp_io_sync_625);
2719 else if (norm & V4L2_STD_525_60)
2720 adv7842_s_sdp_io(sd, &pdata->sdp_io_sync_525);
2721 else
2722 adv7842_s_sdp_io(sd, NULL);
2723
2724 if (norm & V4L2_STD_ALL) {
2725 state->norm = norm;
2726 return 0;
2727 }
2728 return -EINVAL;
2729 }
2730
2731 static int adv7842_g_std(struct v4l2_subdev *sd, v4l2_std_id *norm)
2732 {
2733 struct adv7842_state *state = to_state(sd);
2734
2735 v4l2_dbg(1, debug, sd, "%s:\n", __func__);
2736
2737 if (state->mode != ADV7842_MODE_SDP)
2738 return -ENODATA;
2739
2740 *norm = state->norm;
2741 return 0;
2742 }
2743
2744 /* ----------------------------------------------------------------------- */
2745
2746 static int adv7842_core_init(struct v4l2_subdev *sd)
2747 {
2748 struct adv7842_state *state = to_state(sd);
2749 struct adv7842_platform_data *pdata = &state->pdata;
2750 hdmi_write(sd, 0x48,
2751 (pdata->disable_pwrdnb ? 0x80 : 0) |
2752 (pdata->disable_cable_det_rst ? 0x40 : 0));
2753
2754 disable_input(sd);
2755
2756 /*
2757 * Disable I2C access to internal EDID ram from HDMI DDC ports
2758 * Disable auto edid enable when leaving powerdown mode
2759 */
2760 rep_write_and_or(sd, 0x77, 0xd3, 0x20);
2761
2762 /* power */
2763 io_write(sd, 0x0c, 0x42); /* Power up part and power down VDP */
2764 io_write(sd, 0x15, 0x80); /* Power up pads */
2765
2766 /* video format */
2767 io_write(sd, 0x02,
2768 0xf0 |
2769 pdata->alt_gamma << 3 |
2770 pdata->op_656_range << 2 |
2771 pdata->alt_data_sat << 0);
2772 io_write_and_or(sd, 0x05, 0xf0, pdata->blank_data << 3 |
2773 pdata->insert_av_codes << 2 |
2774 pdata->replicate_av_codes << 1);
2775 adv7842_setup_format(state);
2776
2777 /* HDMI audio */
2778 hdmi_write_and_or(sd, 0x1a, 0xf1, 0x08); /* Wait 1 s before unmute */
2779
2780 /* Drive strength */
2781 io_write_and_or(sd, 0x14, 0xc0,
2782 pdata->dr_str_data << 4 |
2783 pdata->dr_str_clk << 2 |
2784 pdata->dr_str_sync);
2785
2786 /* HDMI free run */
2787 cp_write_and_or(sd, 0xba, 0xfc, pdata->hdmi_free_run_enable |
2788 (pdata->hdmi_free_run_mode << 1));
2789
2790 /* SPD free run */
2791 sdp_write_and_or(sd, 0xdd, 0xf0, pdata->sdp_free_run_force |
2792 (pdata->sdp_free_run_cbar_en << 1) |
2793 (pdata->sdp_free_run_man_col_en << 2) |
2794 (pdata->sdp_free_run_auto << 3));
2795
2796 /* TODO from platform data */
2797 cp_write(sd, 0x69, 0x14); /* Enable CP CSC */
2798 io_write(sd, 0x06, 0xa6); /* positive VS and HS and DE */
2799 cp_write(sd, 0xf3, 0xdc); /* Low threshold to enter/exit free run mode */
2800 afe_write(sd, 0xb5, 0x01); /* Setting MCLK to 256Fs */
2801
2802 afe_write(sd, 0x02, pdata->ain_sel); /* Select analog input muxing mode */
2803 io_write_and_or(sd, 0x30, ~(1 << 4), pdata->output_bus_lsb_to_msb << 4);
2804
2805 sdp_csc_coeff(sd, &pdata->sdp_csc_coeff);
2806
2807 /* todo, improve settings for sdram */
2808 if (pdata->sd_ram_size >= 128) {
2809 sdp_write(sd, 0x12, 0x0d); /* Frame TBC,3D comb enabled */
2810 if (pdata->sd_ram_ddr) {
2811 /* SDP setup for the AD eval board */
2812 sdp_io_write(sd, 0x6f, 0x00); /* DDR mode */
2813 sdp_io_write(sd, 0x75, 0x0a); /* 128 MB memory size */
2814 sdp_io_write(sd, 0x7a, 0xa5); /* Timing Adjustment */
2815 sdp_io_write(sd, 0x7b, 0x8f); /* Timing Adjustment */
2816 sdp_io_write(sd, 0x60, 0x01); /* SDRAM reset */
2817 } else {
2818 sdp_io_write(sd, 0x75, 0x0a); /* 64 MB memory size ?*/
2819 sdp_io_write(sd, 0x74, 0x00); /* must be zero for sdr sdram */
2820 sdp_io_write(sd, 0x79, 0x33); /* CAS latency to 3,
2821 depends on memory */
2822 sdp_io_write(sd, 0x6f, 0x01); /* SDR mode */
2823 sdp_io_write(sd, 0x7a, 0xa5); /* Timing Adjustment */
2824 sdp_io_write(sd, 0x7b, 0x8f); /* Timing Adjustment */
2825 sdp_io_write(sd, 0x60, 0x01); /* SDRAM reset */
2826 }
2827 } else {
2828 /*
2829 * Manual UG-214, rev 0 is bit confusing on this bit
2830 * but a '1' disables any signal if the Ram is active.
2831 */
2832 sdp_io_write(sd, 0x29, 0x10); /* Tristate memory interface */
2833 }
2834
2835 select_input(sd, pdata->vid_std_select);
2836
2837 enable_input(sd);
2838
2839 if (pdata->hpa_auto) {
2840 /* HPA auto, HPA 0.5s after Edid set and Cable detect */
2841 hdmi_write(sd, 0x69, 0x5c);
2842 } else {
2843 /* HPA manual */
2844 hdmi_write(sd, 0x69, 0xa3);
2845 /* HPA disable on port A and B */
2846 io_write_and_or(sd, 0x20, 0xcf, 0x00);
2847 }
2848
2849 /* LLC */
2850 io_write(sd, 0x19, 0x80 | pdata->llc_dll_phase);
2851 io_write(sd, 0x33, 0x40);
2852
2853 /* interrupts */
2854 io_write(sd, 0x40, 0xf2); /* Configure INT1 */
2855
2856 adv7842_irq_enable(sd, true);
2857
2858 return v4l2_ctrl_handler_setup(sd->ctrl_handler);
2859 }
2860
2861 /* ----------------------------------------------------------------------- */
2862
2863 static int adv7842_ddr_ram_test(struct v4l2_subdev *sd)
2864 {
2865 /*
2866 * From ADV784x external Memory test.pdf
2867 *
2868 * Reset must just been performed before running test.
2869 * Recommended to reset after test.
2870 */
2871 int i;
2872 int pass = 0;
2873 int fail = 0;
2874 int complete = 0;
2875
2876 io_write(sd, 0x00, 0x01); /* Program SDP 4x1 */
2877 io_write(sd, 0x01, 0x00); /* Program SDP mode */
2878 afe_write(sd, 0x80, 0x92); /* SDP Recommeneded Write */
2879 afe_write(sd, 0x9B, 0x01); /* SDP Recommeneded Write ADV7844ES1 */
2880 afe_write(sd, 0x9C, 0x60); /* SDP Recommeneded Write ADV7844ES1 */
2881 afe_write(sd, 0x9E, 0x02); /* SDP Recommeneded Write ADV7844ES1 */
2882 afe_write(sd, 0xA0, 0x0B); /* SDP Recommeneded Write ADV7844ES1 */
2883 afe_write(sd, 0xC3, 0x02); /* Memory BIST Initialisation */
2884 io_write(sd, 0x0C, 0x40); /* Power up ADV7844 */
2885 io_write(sd, 0x15, 0xBA); /* Enable outputs */
2886 sdp_write(sd, 0x12, 0x00); /* Disable 3D comb, Frame TBC & 3DNR */
2887 io_write(sd, 0xFF, 0x04); /* Reset memory controller */
2888
2889 mdelay(5);
2890
2891 sdp_write(sd, 0x12, 0x00); /* Disable 3D Comb, Frame TBC & 3DNR */
2892 sdp_io_write(sd, 0x2A, 0x01); /* Memory BIST Initialisation */
2893 sdp_io_write(sd, 0x7c, 0x19); /* Memory BIST Initialisation */
2894 sdp_io_write(sd, 0x80, 0x87); /* Memory BIST Initialisation */
2895 sdp_io_write(sd, 0x81, 0x4a); /* Memory BIST Initialisation */
2896 sdp_io_write(sd, 0x82, 0x2c); /* Memory BIST Initialisation */
2897 sdp_io_write(sd, 0x83, 0x0e); /* Memory BIST Initialisation */
2898 sdp_io_write(sd, 0x84, 0x94); /* Memory BIST Initialisation */
2899 sdp_io_write(sd, 0x85, 0x62); /* Memory BIST Initialisation */
2900 sdp_io_write(sd, 0x7d, 0x00); /* Memory BIST Initialisation */
2901 sdp_io_write(sd, 0x7e, 0x1a); /* Memory BIST Initialisation */
2902
2903 mdelay(5);
2904
2905 sdp_io_write(sd, 0xd9, 0xd5); /* Enable BIST Test */
2906 sdp_write(sd, 0x12, 0x05); /* Enable FRAME TBC & 3D COMB */
2907
2908 mdelay(20);
2909
2910 for (i = 0; i < 10; i++) {
2911 u8 result = sdp_io_read(sd, 0xdb);
2912 if (result & 0x10) {
2913 complete++;
2914 if (result & 0x20)
2915 fail++;
2916 else
2917 pass++;
2918 }
2919 mdelay(20);
2920 }
2921
2922 v4l2_dbg(1, debug, sd,
2923 "Ram Test: completed %d of %d: pass %d, fail %d\n",
2924 complete, i, pass, fail);
2925
2926 if (!complete || fail)
2927 return -EIO;
2928 return 0;
2929 }
2930
2931 static void adv7842_rewrite_i2c_addresses(struct v4l2_subdev *sd,
2932 struct adv7842_platform_data *pdata)
2933 {
2934 io_write(sd, 0xf1, pdata->i2c_sdp << 1);
2935 io_write(sd, 0xf2, pdata->i2c_sdp_io << 1);
2936 io_write(sd, 0xf3, pdata->i2c_avlink << 1);
2937 io_write(sd, 0xf4, pdata->i2c_cec << 1);
2938 io_write(sd, 0xf5, pdata->i2c_infoframe << 1);
2939
2940 io_write(sd, 0xf8, pdata->i2c_afe << 1);
2941 io_write(sd, 0xf9, pdata->i2c_repeater << 1);
2942 io_write(sd, 0xfa, pdata->i2c_edid << 1);
2943 io_write(sd, 0xfb, pdata->i2c_hdmi << 1);
2944
2945 io_write(sd, 0xfd, pdata->i2c_cp << 1);
2946 io_write(sd, 0xfe, pdata->i2c_vdp << 1);
2947 }
2948
2949 static int adv7842_command_ram_test(struct v4l2_subdev *sd)
2950 {
2951 struct i2c_client *client = v4l2_get_subdevdata(sd);
2952 struct adv7842_state *state = to_state(sd);
2953 struct adv7842_platform_data *pdata = client->dev.platform_data;
2954 struct v4l2_dv_timings timings;
2955 int ret = 0;
2956
2957 if (!pdata)
2958 return -ENODEV;
2959
2960 if (!pdata->sd_ram_size || !pdata->sd_ram_ddr) {
2961 v4l2_info(sd, "no sdram or no ddr sdram\n");
2962 return -EINVAL;
2963 }
2964
2965 main_reset(sd);
2966
2967 adv7842_rewrite_i2c_addresses(sd, pdata);
2968
2969 /* run ram test */
2970 ret = adv7842_ddr_ram_test(sd);
2971
2972 main_reset(sd);
2973
2974 adv7842_rewrite_i2c_addresses(sd, pdata);
2975
2976 /* and re-init chip and state */
2977 adv7842_core_init(sd);
2978
2979 disable_input(sd);
2980
2981 select_input(sd, state->vid_std_select);
2982
2983 enable_input(sd);
2984
2985 edid_write_vga_segment(sd);
2986 edid_write_hdmi_segment(sd, ADV7842_EDID_PORT_A);
2987 edid_write_hdmi_segment(sd, ADV7842_EDID_PORT_B);
2988
2989 timings = state->timings;
2990
2991 memset(&state->timings, 0, sizeof(struct v4l2_dv_timings));
2992
2993 adv7842_s_dv_timings(sd, &timings);
2994
2995 return ret;
2996 }
2997
2998 static long adv7842_ioctl(struct v4l2_subdev *sd, unsigned int cmd, void *arg)
2999 {
3000 switch (cmd) {
3001 case ADV7842_CMD_RAM_TEST:
3002 return adv7842_command_ram_test(sd);
3003 }
3004 return -ENOTTY;
3005 }
3006
3007 static int adv7842_subscribe_event(struct v4l2_subdev *sd,
3008 struct v4l2_fh *fh,
3009 struct v4l2_event_subscription *sub)
3010 {
3011 switch (sub->type) {
3012 case V4L2_EVENT_SOURCE_CHANGE:
3013 return v4l2_src_change_event_subdev_subscribe(sd, fh, sub);
3014 case V4L2_EVENT_CTRL:
3015 return v4l2_ctrl_subdev_subscribe_event(sd, fh, sub);
3016 default:
3017 return -EINVAL;
3018 }
3019 }
3020
3021 /* ----------------------------------------------------------------------- */
3022
3023 static const struct v4l2_ctrl_ops adv7842_ctrl_ops = {
3024 .s_ctrl = adv7842_s_ctrl,
3025 };
3026
3027 static const struct v4l2_subdev_core_ops adv7842_core_ops = {
3028 .log_status = adv7842_log_status,
3029 .ioctl = adv7842_ioctl,
3030 .interrupt_service_routine = adv7842_isr,
3031 .subscribe_event = adv7842_subscribe_event,
3032 .unsubscribe_event = v4l2_event_subdev_unsubscribe,
3033 #ifdef CONFIG_VIDEO_ADV_DEBUG
3034 .g_register = adv7842_g_register,
3035 .s_register = adv7842_s_register,
3036 #endif
3037 };
3038
3039 static const struct v4l2_subdev_video_ops adv7842_video_ops = {
3040 .g_std = adv7842_g_std,
3041 .s_std = adv7842_s_std,
3042 .s_routing = adv7842_s_routing,
3043 .querystd = adv7842_querystd,
3044 .g_input_status = adv7842_g_input_status,
3045 .s_dv_timings = adv7842_s_dv_timings,
3046 .g_dv_timings = adv7842_g_dv_timings,
3047 .query_dv_timings = adv7842_query_dv_timings,
3048 };
3049
3050 static const struct v4l2_subdev_pad_ops adv7842_pad_ops = {
3051 .enum_mbus_code = adv7842_enum_mbus_code,
3052 .get_fmt = adv7842_get_format,
3053 .set_fmt = adv7842_set_format,
3054 .get_edid = adv7842_get_edid,
3055 .set_edid = adv7842_set_edid,
3056 .enum_dv_timings = adv7842_enum_dv_timings,
3057 .dv_timings_cap = adv7842_dv_timings_cap,
3058 };
3059
3060 static const struct v4l2_subdev_ops adv7842_ops = {
3061 .core = &adv7842_core_ops,
3062 .video = &adv7842_video_ops,
3063 .pad = &adv7842_pad_ops,
3064 };
3065
3066 /* -------------------------- custom ctrls ---------------------------------- */
3067
3068 static const struct v4l2_ctrl_config adv7842_ctrl_analog_sampling_phase = {
3069 .ops = &adv7842_ctrl_ops,
3070 .id = V4L2_CID_ADV_RX_ANALOG_SAMPLING_PHASE,
3071 .name = "Analog Sampling Phase",
3072 .type = V4L2_CTRL_TYPE_INTEGER,
3073 .min = 0,
3074 .max = 0x1f,
3075 .step = 1,
3076 .def = 0,
3077 };
3078
3079 static const struct v4l2_ctrl_config adv7842_ctrl_free_run_color_manual = {
3080 .ops = &adv7842_ctrl_ops,
3081 .id = V4L2_CID_ADV_RX_FREE_RUN_COLOR_MANUAL,
3082 .name = "Free Running Color, Manual",
3083 .type = V4L2_CTRL_TYPE_BOOLEAN,
3084 .max = 1,
3085 .step = 1,
3086 .def = 1,
3087 };
3088
3089 static const struct v4l2_ctrl_config adv7842_ctrl_free_run_color = {
3090 .ops = &adv7842_ctrl_ops,
3091 .id = V4L2_CID_ADV_RX_FREE_RUN_COLOR,
3092 .name = "Free Running Color",
3093 .type = V4L2_CTRL_TYPE_INTEGER,
3094 .max = 0xffffff,
3095 .step = 0x1,
3096 };
3097
3098
3099 static void adv7842_unregister_clients(struct v4l2_subdev *sd)
3100 {
3101 struct adv7842_state *state = to_state(sd);
3102 if (state->i2c_avlink)
3103 i2c_unregister_device(state->i2c_avlink);
3104 if (state->i2c_cec)
3105 i2c_unregister_device(state->i2c_cec);
3106 if (state->i2c_infoframe)
3107 i2c_unregister_device(state->i2c_infoframe);
3108 if (state->i2c_sdp_io)
3109 i2c_unregister_device(state->i2c_sdp_io);
3110 if (state->i2c_sdp)
3111 i2c_unregister_device(state->i2c_sdp);
3112 if (state->i2c_afe)
3113 i2c_unregister_device(state->i2c_afe);
3114 if (state->i2c_repeater)
3115 i2c_unregister_device(state->i2c_repeater);
3116 if (state->i2c_edid)
3117 i2c_unregister_device(state->i2c_edid);
3118 if (state->i2c_hdmi)
3119 i2c_unregister_device(state->i2c_hdmi);
3120 if (state->i2c_cp)
3121 i2c_unregister_device(state->i2c_cp);
3122 if (state->i2c_vdp)
3123 i2c_unregister_device(state->i2c_vdp);
3124
3125 state->i2c_avlink = NULL;
3126 state->i2c_cec = NULL;
3127 state->i2c_infoframe = NULL;
3128 state->i2c_sdp_io = NULL;
3129 state->i2c_sdp = NULL;
3130 state->i2c_afe = NULL;
3131 state->i2c_repeater = NULL;
3132 state->i2c_edid = NULL;
3133 state->i2c_hdmi = NULL;
3134 state->i2c_cp = NULL;
3135 state->i2c_vdp = NULL;
3136 }
3137
3138 static struct i2c_client *adv7842_dummy_client(struct v4l2_subdev *sd, const char *desc,
3139 u8 addr, u8 io_reg)
3140 {
3141 struct i2c_client *client = v4l2_get_subdevdata(sd);
3142 struct i2c_client *cp;
3143
3144 io_write(sd, io_reg, addr << 1);
3145
3146 if (addr == 0) {
3147 v4l2_err(sd, "no %s i2c addr configured\n", desc);
3148 return NULL;
3149 }
3150
3151 cp = i2c_new_dummy(client->adapter, io_read(sd, io_reg) >> 1);
3152 if (!cp)
3153 v4l2_err(sd, "register %s on i2c addr 0x%x failed\n", desc, addr);
3154
3155 return cp;
3156 }
3157
3158 static int adv7842_register_clients(struct v4l2_subdev *sd)
3159 {
3160 struct adv7842_state *state = to_state(sd);
3161 struct adv7842_platform_data *pdata = &state->pdata;
3162
3163 state->i2c_avlink = adv7842_dummy_client(sd, "avlink", pdata->i2c_avlink, 0xf3);
3164 state->i2c_cec = adv7842_dummy_client(sd, "cec", pdata->i2c_cec, 0xf4);
3165 state->i2c_infoframe = adv7842_dummy_client(sd, "infoframe", pdata->i2c_infoframe, 0xf5);
3166 state->i2c_sdp_io = adv7842_dummy_client(sd, "sdp_io", pdata->i2c_sdp_io, 0xf2);
3167 state->i2c_sdp = adv7842_dummy_client(sd, "sdp", pdata->i2c_sdp, 0xf1);
3168 state->i2c_afe = adv7842_dummy_client(sd, "afe", pdata->i2c_afe, 0xf8);
3169 state->i2c_repeater = adv7842_dummy_client(sd, "repeater", pdata->i2c_repeater, 0xf9);
3170 state->i2c_edid = adv7842_dummy_client(sd, "edid", pdata->i2c_edid, 0xfa);
3171 state->i2c_hdmi = adv7842_dummy_client(sd, "hdmi", pdata->i2c_hdmi, 0xfb);
3172 state->i2c_cp = adv7842_dummy_client(sd, "cp", pdata->i2c_cp, 0xfd);
3173 state->i2c_vdp = adv7842_dummy_client(sd, "vdp", pdata->i2c_vdp, 0xfe);
3174
3175 if (!state->i2c_avlink ||
3176 !state->i2c_cec ||
3177 !state->i2c_infoframe ||
3178 !state->i2c_sdp_io ||
3179 !state->i2c_sdp ||
3180 !state->i2c_afe ||
3181 !state->i2c_repeater ||
3182 !state->i2c_edid ||
3183 !state->i2c_hdmi ||
3184 !state->i2c_cp ||
3185 !state->i2c_vdp)
3186 return -1;
3187
3188 return 0;
3189 }
3190
3191 static int adv7842_probe(struct i2c_client *client,
3192 const struct i2c_device_id *id)
3193 {
3194 struct adv7842_state *state;
3195 static const struct v4l2_dv_timings cea640x480 =
3196 V4L2_DV_BT_CEA_640X480P59_94;
3197 struct adv7842_platform_data *pdata = client->dev.platform_data;
3198 struct v4l2_ctrl_handler *hdl;
3199 struct v4l2_subdev *sd;
3200 u16 rev;
3201 int err;
3202
3203 /* Check if the adapter supports the needed features */
3204 if (!i2c_check_functionality(client->adapter, I2C_FUNC_SMBUS_BYTE_DATA))
3205 return -EIO;
3206
3207 v4l_dbg(1, debug, client, "detecting adv7842 client on address 0x%x\n",
3208 client->addr << 1);
3209
3210 if (!pdata) {
3211 v4l_err(client, "No platform data!\n");
3212 return -ENODEV;
3213 }
3214
3215 state = devm_kzalloc(&client->dev, sizeof(struct adv7842_state), GFP_KERNEL);
3216 if (!state) {
3217 v4l_err(client, "Could not allocate adv7842_state memory!\n");
3218 return -ENOMEM;
3219 }
3220
3221 /* platform data */
3222 state->pdata = *pdata;
3223 state->timings = cea640x480;
3224 state->format = adv7842_format_info(state, MEDIA_BUS_FMT_YUYV8_2X8);
3225
3226 sd = &state->sd;
3227 v4l2_i2c_subdev_init(sd, client, &adv7842_ops);
3228 sd->flags |= V4L2_SUBDEV_FL_HAS_DEVNODE | V4L2_SUBDEV_FL_HAS_EVENTS;
3229 state->mode = pdata->mode;
3230
3231 state->hdmi_port_a = pdata->input == ADV7842_SELECT_HDMI_PORT_A;
3232 state->restart_stdi_once = true;
3233
3234 /* i2c access to adv7842? */
3235 rev = adv_smbus_read_byte_data_check(client, 0xea, false) << 8 |
3236 adv_smbus_read_byte_data_check(client, 0xeb, false);
3237 if (rev != 0x2012) {
3238 v4l2_info(sd, "got rev=0x%04x on first read attempt\n", rev);
3239 rev = adv_smbus_read_byte_data_check(client, 0xea, false) << 8 |
3240 adv_smbus_read_byte_data_check(client, 0xeb, false);
3241 }
3242 if (rev != 0x2012) {
3243 v4l2_info(sd, "not an adv7842 on address 0x%x (rev=0x%04x)\n",
3244 client->addr << 1, rev);
3245 return -ENODEV;
3246 }
3247
3248 if (pdata->chip_reset)
3249 main_reset(sd);
3250
3251 /* control handlers */
3252 hdl = &state->hdl;
3253 v4l2_ctrl_handler_init(hdl, 6);
3254
3255 /* add in ascending ID order */
3256 v4l2_ctrl_new_std(hdl, &adv7842_ctrl_ops,
3257 V4L2_CID_BRIGHTNESS, -128, 127, 1, 0);
3258 v4l2_ctrl_new_std(hdl, &adv7842_ctrl_ops,
3259 V4L2_CID_CONTRAST, 0, 255, 1, 128);
3260 v4l2_ctrl_new_std(hdl, &adv7842_ctrl_ops,
3261 V4L2_CID_SATURATION, 0, 255, 1, 128);
3262 v4l2_ctrl_new_std(hdl, &adv7842_ctrl_ops,
3263 V4L2_CID_HUE, 0, 128, 1, 0);
3264
3265 /* custom controls */
3266 state->detect_tx_5v_ctrl = v4l2_ctrl_new_std(hdl, NULL,
3267 V4L2_CID_DV_RX_POWER_PRESENT, 0, 3, 0, 0);
3268 state->analog_sampling_phase_ctrl = v4l2_ctrl_new_custom(hdl,
3269 &adv7842_ctrl_analog_sampling_phase, NULL);
3270 state->free_run_color_ctrl_manual = v4l2_ctrl_new_custom(hdl,
3271 &adv7842_ctrl_free_run_color_manual, NULL);
3272 state->free_run_color_ctrl = v4l2_ctrl_new_custom(hdl,
3273 &adv7842_ctrl_free_run_color, NULL);
3274 state->rgb_quantization_range_ctrl =
3275 v4l2_ctrl_new_std_menu(hdl, &adv7842_ctrl_ops,
3276 V4L2_CID_DV_RX_RGB_RANGE, V4L2_DV_RGB_RANGE_FULL,
3277 0, V4L2_DV_RGB_RANGE_AUTO);
3278 sd->ctrl_handler = hdl;
3279 if (hdl->error) {
3280 err = hdl->error;
3281 goto err_hdl;
3282 }
3283 state->detect_tx_5v_ctrl->is_private = true;
3284 state->rgb_quantization_range_ctrl->is_private = true;
3285 state->analog_sampling_phase_ctrl->is_private = true;
3286 state->free_run_color_ctrl_manual->is_private = true;
3287 state->free_run_color_ctrl->is_private = true;
3288
3289 if (adv7842_s_detect_tx_5v_ctrl(sd)) {
3290 err = -ENODEV;
3291 goto err_hdl;
3292 }
3293
3294 if (adv7842_register_clients(sd) < 0) {
3295 err = -ENOMEM;
3296 v4l2_err(sd, "failed to create all i2c clients\n");
3297 goto err_i2c;
3298 }
3299
3300 /* work queues */
3301 state->work_queues = create_singlethread_workqueue(client->name);
3302 if (!state->work_queues) {
3303 v4l2_err(sd, "Could not create work queue\n");
3304 err = -ENOMEM;
3305 goto err_i2c;
3306 }
3307
3308 INIT_DELAYED_WORK(&state->delayed_work_enable_hotplug,
3309 adv7842_delayed_work_enable_hotplug);
3310
3311 state->pad.flags = MEDIA_PAD_FL_SOURCE;
3312 err = media_entity_init(&sd->entity, 1, &state->pad, 0);
3313 if (err)
3314 goto err_work_queues;
3315
3316 err = adv7842_core_init(sd);
3317 if (err)
3318 goto err_entity;
3319
3320 v4l2_info(sd, "%s found @ 0x%x (%s)\n", client->name,
3321 client->addr << 1, client->adapter->name);
3322 return 0;
3323
3324 err_entity:
3325 media_entity_cleanup(&sd->entity);
3326 err_work_queues:
3327 cancel_delayed_work(&state->delayed_work_enable_hotplug);
3328 destroy_workqueue(state->work_queues);
3329 err_i2c:
3330 adv7842_unregister_clients(sd);
3331 err_hdl:
3332 v4l2_ctrl_handler_free(hdl);
3333 return err;
3334 }
3335
3336 /* ----------------------------------------------------------------------- */
3337
3338 static int adv7842_remove(struct i2c_client *client)
3339 {
3340 struct v4l2_subdev *sd = i2c_get_clientdata(client);
3341 struct adv7842_state *state = to_state(sd);
3342
3343 adv7842_irq_enable(sd, false);
3344
3345 cancel_delayed_work(&state->delayed_work_enable_hotplug);
3346 destroy_workqueue(state->work_queues);
3347 v4l2_device_unregister_subdev(sd);
3348 media_entity_cleanup(&sd->entity);
3349 adv7842_unregister_clients(sd);
3350 v4l2_ctrl_handler_free(sd->ctrl_handler);
3351 return 0;
3352 }
3353
3354 /* ----------------------------------------------------------------------- */
3355
3356 static struct i2c_device_id adv7842_id[] = {
3357 { "adv7842", 0 },
3358 { }
3359 };
3360 MODULE_DEVICE_TABLE(i2c, adv7842_id);
3361
3362 /* ----------------------------------------------------------------------- */
3363
3364 static struct i2c_driver adv7842_driver = {
3365 .driver = {
3366 .name = "adv7842",
3367 },
3368 .probe = adv7842_probe,
3369 .remove = adv7842_remove,
3370 .id_table = adv7842_id,
3371 };
3372
3373 module_i2c_driver(adv7842_driver);
Ubuntu Artful kernel mirror