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sched: Remove double_rq_lock() from __migrate_task()
[linux/fpc-iii.git] / drivers / media / i2c / adv7604.c
blob1778d320272e50f98f425b6d682aea587fd03128
1 /*
2 * adv7604 - Analog Devices ADV7604 video decoder driver
3 *
4 * Copyright 2012 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, ADV7604, Register Settings Recommendations,
24 * Revision 2.5, June 2010
25 * REF_02 - Analog devices, Register map documentation, Documentation of
26 * the register maps, Software manual, Rev. F, June 2010
27 * REF_03 - Analog devices, ADV7604, Hardware Manual, Rev. F, August 2010
28 */
29
30 #include <linux/delay.h>
31 #include <linux/gpio/consumer.h>
32 #include <linux/i2c.h>
33 #include <linux/kernel.h>
34 #include <linux/module.h>
35 #include <linux/slab.h>
36 #include <linux/v4l2-dv-timings.h>
37 #include <linux/videodev2.h>
38 #include <linux/workqueue.h>
39
40 #include <media/adv7604.h>
41 #include <media/v4l2-ctrls.h>
42 #include <media/v4l2-device.h>
43 #include <media/v4l2-dv-timings.h>
44 #include <media/v4l2-of.h>
45
46 static int debug;
47 module_param(debug, int, 0644);
48 MODULE_PARM_DESC(debug, "debug level (0-2)");
49
50 MODULE_DESCRIPTION("Analog Devices ADV7604 video decoder driver");
51 MODULE_AUTHOR("Hans Verkuil <hans.verkuil@cisco.com>");
52 MODULE_AUTHOR("Mats Randgaard <mats.randgaard@cisco.com>");
53 MODULE_LICENSE("GPL");
54
55 /* ADV7604 system clock frequency */
56 #define ADV7604_fsc (28636360)
57
58 #define ADV7604_RGB_OUT (1 << 1)
59
60 #define ADV7604_OP_FORMAT_SEL_8BIT (0 << 0)
61 #define ADV7604_OP_FORMAT_SEL_10BIT (1 << 0)
62 #define ADV7604_OP_FORMAT_SEL_12BIT (2 << 0)
63
64 #define ADV7604_OP_MODE_SEL_SDR_422 (0 << 5)
65 #define ADV7604_OP_MODE_SEL_DDR_422 (1 << 5)
66 #define ADV7604_OP_MODE_SEL_SDR_444 (2 << 5)
67 #define ADV7604_OP_MODE_SEL_DDR_444 (3 << 5)
68 #define ADV7604_OP_MODE_SEL_SDR_422_2X (4 << 5)
69 #define ADV7604_OP_MODE_SEL_ADI_CM (5 << 5)
70
71 #define ADV7604_OP_CH_SEL_GBR (0 << 5)
72 #define ADV7604_OP_CH_SEL_GRB (1 << 5)
73 #define ADV7604_OP_CH_SEL_BGR (2 << 5)
74 #define ADV7604_OP_CH_SEL_RGB (3 << 5)
75 #define ADV7604_OP_CH_SEL_BRG (4 << 5)
76 #define ADV7604_OP_CH_SEL_RBG (5 << 5)
77
78 #define ADV7604_OP_SWAP_CB_CR (1 << 0)
79
80 enum adv7604_type {
81 ADV7604,
82 ADV7611,
83 };
84
85 struct adv7604_reg_seq {
86 unsigned int reg;
87 u8 val;
88 };
89
90 struct adv7604_format_info {
91 enum v4l2_mbus_pixelcode code;
92 u8 op_ch_sel;
93 bool rgb_out;
94 bool swap_cb_cr;
95 u8 op_format_sel;
96 };
97
98 struct adv7604_chip_info {
99 enum adv7604_type type;
100
101 bool has_afe;
102 unsigned int max_port;
103 unsigned int num_dv_ports;
104
105 unsigned int edid_enable_reg;
106 unsigned int edid_status_reg;
107 unsigned int lcf_reg;
108
109 unsigned int cable_det_mask;
110 unsigned int tdms_lock_mask;
111 unsigned int fmt_change_digital_mask;
112
113 const struct adv7604_format_info *formats;
114 unsigned int nformats;
115
116 void (*set_termination)(struct v4l2_subdev *sd, bool enable);
117 void (*setup_irqs)(struct v4l2_subdev *sd);
118 unsigned int (*read_hdmi_pixelclock)(struct v4l2_subdev *sd);
119 unsigned int (*read_cable_det)(struct v4l2_subdev *sd);
120
121 /* 0 = AFE, 1 = HDMI */
122 const struct adv7604_reg_seq *recommended_settings[2];
123 unsigned int num_recommended_settings[2];
124
125 unsigned long page_mask;
126 };
127
128 /*
129 **********************************************************************
130 *
131 * Arrays with configuration parameters for the ADV7604
132 *
133 **********************************************************************
134 */
135
136 struct adv7604_state {
137 const struct adv7604_chip_info *info;
138 struct adv7604_platform_data pdata;
139
140 struct gpio_desc *hpd_gpio[4];
141
142 struct v4l2_subdev sd;
143 struct media_pad pads[ADV7604_PAD_MAX];
144 unsigned int source_pad;
145
146 struct v4l2_ctrl_handler hdl;
147
148 enum adv7604_pad selected_input;
149
150 struct v4l2_dv_timings timings;
151 const struct adv7604_format_info *format;
152
153 struct {
154 u8 edid[256];
155 u32 present;
156 unsigned blocks;
157 } edid;
158 u16 spa_port_a[2];
159 struct v4l2_fract aspect_ratio;
160 u32 rgb_quantization_range;
161 struct workqueue_struct *work_queues;
162 struct delayed_work delayed_work_enable_hotplug;
163 bool restart_stdi_once;
164
165 /* i2c clients */
166 struct i2c_client *i2c_clients[ADV7604_PAGE_MAX];
167
168 /* controls */
169 struct v4l2_ctrl *detect_tx_5v_ctrl;
170 struct v4l2_ctrl *analog_sampling_phase_ctrl;
171 struct v4l2_ctrl *free_run_color_manual_ctrl;
172 struct v4l2_ctrl *free_run_color_ctrl;
173 struct v4l2_ctrl *rgb_quantization_range_ctrl;
174 };
175
176 static bool adv7604_has_afe(struct adv7604_state *state)
177 {
178 return state->info->has_afe;
179 }
180
181 /* Supported CEA and DMT timings */
182 static const struct v4l2_dv_timings adv7604_timings[] = {
183 V4L2_DV_BT_CEA_720X480P59_94,
184 V4L2_DV_BT_CEA_720X576P50,
185 V4L2_DV_BT_CEA_1280X720P24,
186 V4L2_DV_BT_CEA_1280X720P25,
187 V4L2_DV_BT_CEA_1280X720P50,
188 V4L2_DV_BT_CEA_1280X720P60,
189 V4L2_DV_BT_CEA_1920X1080P24,
190 V4L2_DV_BT_CEA_1920X1080P25,
191 V4L2_DV_BT_CEA_1920X1080P30,
192 V4L2_DV_BT_CEA_1920X1080P50,
193 V4L2_DV_BT_CEA_1920X1080P60,
194
195 /* sorted by DMT ID */
196 V4L2_DV_BT_DMT_640X350P85,
197 V4L2_DV_BT_DMT_640X400P85,
198 V4L2_DV_BT_DMT_720X400P85,
199 V4L2_DV_BT_DMT_640X480P60,
200 V4L2_DV_BT_DMT_640X480P72,
201 V4L2_DV_BT_DMT_640X480P75,
202 V4L2_DV_BT_DMT_640X480P85,
203 V4L2_DV_BT_DMT_800X600P56,
204 V4L2_DV_BT_DMT_800X600P60,
205 V4L2_DV_BT_DMT_800X600P72,
206 V4L2_DV_BT_DMT_800X600P75,
207 V4L2_DV_BT_DMT_800X600P85,
208 V4L2_DV_BT_DMT_848X480P60,
209 V4L2_DV_BT_DMT_1024X768P60,
210 V4L2_DV_BT_DMT_1024X768P70,
211 V4L2_DV_BT_DMT_1024X768P75,
212 V4L2_DV_BT_DMT_1024X768P85,
213 V4L2_DV_BT_DMT_1152X864P75,
214 V4L2_DV_BT_DMT_1280X768P60_RB,
215 V4L2_DV_BT_DMT_1280X768P60,
216 V4L2_DV_BT_DMT_1280X768P75,
217 V4L2_DV_BT_DMT_1280X768P85,
218 V4L2_DV_BT_DMT_1280X800P60_RB,
219 V4L2_DV_BT_DMT_1280X800P60,
220 V4L2_DV_BT_DMT_1280X800P75,
221 V4L2_DV_BT_DMT_1280X800P85,
222 V4L2_DV_BT_DMT_1280X960P60,
223 V4L2_DV_BT_DMT_1280X960P85,
224 V4L2_DV_BT_DMT_1280X1024P60,
225 V4L2_DV_BT_DMT_1280X1024P75,
226 V4L2_DV_BT_DMT_1280X1024P85,
227 V4L2_DV_BT_DMT_1360X768P60,
228 V4L2_DV_BT_DMT_1400X1050P60_RB,
229 V4L2_DV_BT_DMT_1400X1050P60,
230 V4L2_DV_BT_DMT_1400X1050P75,
231 V4L2_DV_BT_DMT_1400X1050P85,
232 V4L2_DV_BT_DMT_1440X900P60_RB,
233 V4L2_DV_BT_DMT_1440X900P60,
234 V4L2_DV_BT_DMT_1600X1200P60,
235 V4L2_DV_BT_DMT_1680X1050P60_RB,
236 V4L2_DV_BT_DMT_1680X1050P60,
237 V4L2_DV_BT_DMT_1792X1344P60,
238 V4L2_DV_BT_DMT_1856X1392P60,
239 V4L2_DV_BT_DMT_1920X1200P60_RB,
240 V4L2_DV_BT_DMT_1366X768P60_RB,
241 V4L2_DV_BT_DMT_1366X768P60,
242 V4L2_DV_BT_DMT_1920X1080P60,
243 { },
244 };
245
246 struct adv7604_video_standards {
247 struct v4l2_dv_timings timings;
248 u8 vid_std;
249 u8 v_freq;
250 };
251
252 /* sorted by number of lines */
253 static const struct adv7604_video_standards adv7604_prim_mode_comp[] = {
254 /* { V4L2_DV_BT_CEA_720X480P59_94, 0x0a, 0x00 }, TODO flickering */
255 { V4L2_DV_BT_CEA_720X576P50, 0x0b, 0x00 },
256 { V4L2_DV_BT_CEA_1280X720P50, 0x19, 0x01 },
257 { V4L2_DV_BT_CEA_1280X720P60, 0x19, 0x00 },
258 { V4L2_DV_BT_CEA_1920X1080P24, 0x1e, 0x04 },
259 { V4L2_DV_BT_CEA_1920X1080P25, 0x1e, 0x03 },
260 { V4L2_DV_BT_CEA_1920X1080P30, 0x1e, 0x02 },
261 { V4L2_DV_BT_CEA_1920X1080P50, 0x1e, 0x01 },
262 { V4L2_DV_BT_CEA_1920X1080P60, 0x1e, 0x00 },
263 /* TODO add 1920x1080P60_RB (CVT timing) */
264 { },
265 };
266
267 /* sorted by number of lines */
268 static const struct adv7604_video_standards adv7604_prim_mode_gr[] = {
269 { V4L2_DV_BT_DMT_640X480P60, 0x08, 0x00 },
270 { V4L2_DV_BT_DMT_640X480P72, 0x09, 0x00 },
271 { V4L2_DV_BT_DMT_640X480P75, 0x0a, 0x00 },
272 { V4L2_DV_BT_DMT_640X480P85, 0x0b, 0x00 },
273 { V4L2_DV_BT_DMT_800X600P56, 0x00, 0x00 },
274 { V4L2_DV_BT_DMT_800X600P60, 0x01, 0x00 },
275 { V4L2_DV_BT_DMT_800X600P72, 0x02, 0x00 },
276 { V4L2_DV_BT_DMT_800X600P75, 0x03, 0x00 },
277 { V4L2_DV_BT_DMT_800X600P85, 0x04, 0x00 },
278 { V4L2_DV_BT_DMT_1024X768P60, 0x0c, 0x00 },
279 { V4L2_DV_BT_DMT_1024X768P70, 0x0d, 0x00 },
280 { V4L2_DV_BT_DMT_1024X768P75, 0x0e, 0x00 },
281 { V4L2_DV_BT_DMT_1024X768P85, 0x0f, 0x00 },
282 { V4L2_DV_BT_DMT_1280X1024P60, 0x05, 0x00 },
283 { V4L2_DV_BT_DMT_1280X1024P75, 0x06, 0x00 },
284 { V4L2_DV_BT_DMT_1360X768P60, 0x12, 0x00 },
285 { V4L2_DV_BT_DMT_1366X768P60, 0x13, 0x00 },
286 { V4L2_DV_BT_DMT_1400X1050P60, 0x14, 0x00 },
287 { V4L2_DV_BT_DMT_1400X1050P75, 0x15, 0x00 },
288 { V4L2_DV_BT_DMT_1600X1200P60, 0x16, 0x00 }, /* TODO not tested */
289 /* TODO add 1600X1200P60_RB (not a DMT timing) */
290 { V4L2_DV_BT_DMT_1680X1050P60, 0x18, 0x00 },
291 { V4L2_DV_BT_DMT_1920X1200P60_RB, 0x19, 0x00 }, /* TODO not tested */
292 { },
293 };
294
295 /* sorted by number of lines */
296 static const struct adv7604_video_standards adv7604_prim_mode_hdmi_comp[] = {
297 { V4L2_DV_BT_CEA_720X480P59_94, 0x0a, 0x00 },
298 { V4L2_DV_BT_CEA_720X576P50, 0x0b, 0x00 },
299 { V4L2_DV_BT_CEA_1280X720P50, 0x13, 0x01 },
300 { V4L2_DV_BT_CEA_1280X720P60, 0x13, 0x00 },
301 { V4L2_DV_BT_CEA_1920X1080P24, 0x1e, 0x04 },
302 { V4L2_DV_BT_CEA_1920X1080P25, 0x1e, 0x03 },
303 { V4L2_DV_BT_CEA_1920X1080P30, 0x1e, 0x02 },
304 { V4L2_DV_BT_CEA_1920X1080P50, 0x1e, 0x01 },
305 { V4L2_DV_BT_CEA_1920X1080P60, 0x1e, 0x00 },
306 { },
307 };
308
309 /* sorted by number of lines */
310 static const struct adv7604_video_standards adv7604_prim_mode_hdmi_gr[] = {
311 { V4L2_DV_BT_DMT_640X480P60, 0x08, 0x00 },
312 { V4L2_DV_BT_DMT_640X480P72, 0x09, 0x00 },
313 { V4L2_DV_BT_DMT_640X480P75, 0x0a, 0x00 },
314 { V4L2_DV_BT_DMT_640X480P85, 0x0b, 0x00 },
315 { V4L2_DV_BT_DMT_800X600P56, 0x00, 0x00 },
316 { V4L2_DV_BT_DMT_800X600P60, 0x01, 0x00 },
317 { V4L2_DV_BT_DMT_800X600P72, 0x02, 0x00 },
318 { V4L2_DV_BT_DMT_800X600P75, 0x03, 0x00 },
319 { V4L2_DV_BT_DMT_800X600P85, 0x04, 0x00 },
320 { V4L2_DV_BT_DMT_1024X768P60, 0x0c, 0x00 },
321 { V4L2_DV_BT_DMT_1024X768P70, 0x0d, 0x00 },
322 { V4L2_DV_BT_DMT_1024X768P75, 0x0e, 0x00 },
323 { V4L2_DV_BT_DMT_1024X768P85, 0x0f, 0x00 },
324 { V4L2_DV_BT_DMT_1280X1024P60, 0x05, 0x00 },
325 { V4L2_DV_BT_DMT_1280X1024P75, 0x06, 0x00 },
326 { },
327 };
328
329 /* ----------------------------------------------------------------------- */
330
331 static inline struct adv7604_state *to_state(struct v4l2_subdev *sd)
332 {
333 return container_of(sd, struct adv7604_state, sd);
334 }
335
336 static inline unsigned hblanking(const struct v4l2_bt_timings *t)
337 {
338 return V4L2_DV_BT_BLANKING_WIDTH(t);
339 }
340
341 static inline unsigned htotal(const struct v4l2_bt_timings *t)
342 {
343 return V4L2_DV_BT_FRAME_WIDTH(t);
344 }
345
346 static inline unsigned vblanking(const struct v4l2_bt_timings *t)
347 {
348 return V4L2_DV_BT_BLANKING_HEIGHT(t);
349 }
350
351 static inline unsigned vtotal(const struct v4l2_bt_timings *t)
352 {
353 return V4L2_DV_BT_FRAME_HEIGHT(t);
354 }
355
356 /* ----------------------------------------------------------------------- */
357
358 static s32 adv_smbus_read_byte_data_check(struct i2c_client *client,
359 u8 command, bool check)
360 {
361 union i2c_smbus_data data;
362
363 if (!i2c_smbus_xfer(client->adapter, client->addr, client->flags,
364 I2C_SMBUS_READ, command,
365 I2C_SMBUS_BYTE_DATA, &data))
366 return data.byte;
367 if (check)
368 v4l_err(client, "error reading %02x, %02x\n",
369 client->addr, command);
370 return -EIO;
371 }
372
373 static s32 adv_smbus_read_byte_data(struct adv7604_state *state,
374 enum adv7604_page page, u8 command)
375 {
376 return adv_smbus_read_byte_data_check(state->i2c_clients[page],
377 command, true);
378 }
379
380 static s32 adv_smbus_write_byte_data(struct adv7604_state *state,
381 enum adv7604_page page, u8 command,
382 u8 value)
383 {
384 struct i2c_client *client = state->i2c_clients[page];
385 union i2c_smbus_data data;
386 int err;
387 int i;
388
389 data.byte = value;
390 for (i = 0; i < 3; i++) {
391 err = i2c_smbus_xfer(client->adapter, client->addr,
392 client->flags,
393 I2C_SMBUS_WRITE, command,
394 I2C_SMBUS_BYTE_DATA, &data);
395 if (!err)
396 break;
397 }
398 if (err < 0)
399 v4l_err(client, "error writing %02x, %02x, %02x\n",
400 client->addr, command, value);
401 return err;
402 }
403
404 static s32 adv_smbus_write_i2c_block_data(struct adv7604_state *state,
405 enum adv7604_page page, u8 command,
406 unsigned length, const u8 *values)
407 {
408 struct i2c_client *client = state->i2c_clients[page];
409 union i2c_smbus_data data;
410
411 if (length > I2C_SMBUS_BLOCK_MAX)
412 length = I2C_SMBUS_BLOCK_MAX;
413 data.block[0] = length;
414 memcpy(data.block + 1, values, length);
415 return i2c_smbus_xfer(client->adapter, client->addr, client->flags,
416 I2C_SMBUS_WRITE, command,
417 I2C_SMBUS_I2C_BLOCK_DATA, &data);
418 }
419
420 /* ----------------------------------------------------------------------- */
421
422 static inline int io_read(struct v4l2_subdev *sd, u8 reg)
423 {
424 struct adv7604_state *state = to_state(sd);
425
426 return adv_smbus_read_byte_data(state, ADV7604_PAGE_IO, reg);
427 }
428
429 static inline int io_write(struct v4l2_subdev *sd, u8 reg, u8 val)
430 {
431 struct adv7604_state *state = to_state(sd);
432
433 return adv_smbus_write_byte_data(state, ADV7604_PAGE_IO, reg, val);
434 }
435
436 static inline int io_write_clr_set(struct v4l2_subdev *sd, u8 reg, u8 mask, u8 val)
437 {
438 return io_write(sd, reg, (io_read(sd, reg) & ~mask) | val);
439 }
440
441 static inline int avlink_read(struct v4l2_subdev *sd, u8 reg)
442 {
443 struct adv7604_state *state = to_state(sd);
444
445 return adv_smbus_read_byte_data(state, ADV7604_PAGE_AVLINK, reg);
446 }
447
448 static inline int avlink_write(struct v4l2_subdev *sd, u8 reg, u8 val)
449 {
450 struct adv7604_state *state = to_state(sd);
451
452 return adv_smbus_write_byte_data(state, ADV7604_PAGE_AVLINK, reg, val);
453 }
454
455 static inline int cec_read(struct v4l2_subdev *sd, u8 reg)
456 {
457 struct adv7604_state *state = to_state(sd);
458
459 return adv_smbus_read_byte_data(state, ADV7604_PAGE_CEC, reg);
460 }
461
462 static inline int cec_write(struct v4l2_subdev *sd, u8 reg, u8 val)
463 {
464 struct adv7604_state *state = to_state(sd);
465
466 return adv_smbus_write_byte_data(state, ADV7604_PAGE_CEC, reg, val);
467 }
468
469 static inline int cec_write_clr_set(struct v4l2_subdev *sd, u8 reg, u8 mask, u8 val)
470 {
471 return cec_write(sd, reg, (cec_read(sd, reg) & ~mask) | val);
472 }
473
474 static inline int infoframe_read(struct v4l2_subdev *sd, u8 reg)
475 {
476 struct adv7604_state *state = to_state(sd);
477
478 return adv_smbus_read_byte_data(state, ADV7604_PAGE_INFOFRAME, reg);
479 }
480
481 static inline int infoframe_write(struct v4l2_subdev *sd, u8 reg, u8 val)
482 {
483 struct adv7604_state *state = to_state(sd);
484
485 return adv_smbus_write_byte_data(state, ADV7604_PAGE_INFOFRAME,
486 reg, val);
487 }
488
489 static inline int esdp_read(struct v4l2_subdev *sd, u8 reg)
490 {
491 struct adv7604_state *state = to_state(sd);
492
493 return adv_smbus_read_byte_data(state, ADV7604_PAGE_ESDP, reg);
494 }
495
496 static inline int esdp_write(struct v4l2_subdev *sd, u8 reg, u8 val)
497 {
498 struct adv7604_state *state = to_state(sd);
499
500 return adv_smbus_write_byte_data(state, ADV7604_PAGE_ESDP, reg, val);
501 }
502
503 static inline int dpp_read(struct v4l2_subdev *sd, u8 reg)
504 {
505 struct adv7604_state *state = to_state(sd);
506
507 return adv_smbus_read_byte_data(state, ADV7604_PAGE_DPP, reg);
508 }
509
510 static inline int dpp_write(struct v4l2_subdev *sd, u8 reg, u8 val)
511 {
512 struct adv7604_state *state = to_state(sd);
513
514 return adv_smbus_write_byte_data(state, ADV7604_PAGE_DPP, reg, val);
515 }
516
517 static inline int afe_read(struct v4l2_subdev *sd, u8 reg)
518 {
519 struct adv7604_state *state = to_state(sd);
520
521 return adv_smbus_read_byte_data(state, ADV7604_PAGE_AFE, reg);
522 }
523
524 static inline int afe_write(struct v4l2_subdev *sd, u8 reg, u8 val)
525 {
526 struct adv7604_state *state = to_state(sd);
527
528 return adv_smbus_write_byte_data(state, ADV7604_PAGE_AFE, reg, val);
529 }
530
531 static inline int rep_read(struct v4l2_subdev *sd, u8 reg)
532 {
533 struct adv7604_state *state = to_state(sd);
534
535 return adv_smbus_read_byte_data(state, ADV7604_PAGE_REP, reg);
536 }
537
538 static inline int rep_write(struct v4l2_subdev *sd, u8 reg, u8 val)
539 {
540 struct adv7604_state *state = to_state(sd);
541
542 return adv_smbus_write_byte_data(state, ADV7604_PAGE_REP, reg, val);
543 }
544
545 static inline int rep_write_clr_set(struct v4l2_subdev *sd, u8 reg, u8 mask, u8 val)
546 {
547 return rep_write(sd, reg, (rep_read(sd, reg) & ~mask) | val);
548 }
549
550 static inline int edid_read(struct v4l2_subdev *sd, u8 reg)
551 {
552 struct adv7604_state *state = to_state(sd);
553
554 return adv_smbus_read_byte_data(state, ADV7604_PAGE_EDID, reg);
555 }
556
557 static inline int edid_write(struct v4l2_subdev *sd, u8 reg, u8 val)
558 {
559 struct adv7604_state *state = to_state(sd);
560
561 return adv_smbus_write_byte_data(state, ADV7604_PAGE_EDID, reg, val);
562 }
563
564 static inline int edid_read_block(struct v4l2_subdev *sd, unsigned len, u8 *val)
565 {
566 struct adv7604_state *state = to_state(sd);
567 struct i2c_client *client = state->i2c_clients[ADV7604_PAGE_EDID];
568 u8 msgbuf0[1] = { 0 };
569 u8 msgbuf1[256];
570 struct i2c_msg msg[2] = {
571 {
572 .addr = client->addr,
573 .len = 1,
574 .buf = msgbuf0
575 },
576 {
577 .addr = client->addr,
578 .flags = I2C_M_RD,
579 .len = len,
580 .buf = msgbuf1
581 },
582 };
583
584 if (i2c_transfer(client->adapter, msg, 2) < 0)
585 return -EIO;
586 memcpy(val, msgbuf1, len);
587 return 0;
588 }
589
590 static inline int edid_write_block(struct v4l2_subdev *sd,
591 unsigned len, const u8 *val)
592 {
593 struct adv7604_state *state = to_state(sd);
594 int err = 0;
595 int i;
596
597 v4l2_dbg(2, debug, sd, "%s: write EDID block (%d byte)\n", __func__, len);
598
599 for (i = 0; !err && i < len; i += I2C_SMBUS_BLOCK_MAX)
600 err = adv_smbus_write_i2c_block_data(state, ADV7604_PAGE_EDID,
601 i, I2C_SMBUS_BLOCK_MAX, val + i);
602 return err;
603 }
604
605 static void adv7604_set_hpd(struct adv7604_state *state, unsigned int hpd)
606 {
607 unsigned int i;
608
609 for (i = 0; i < state->info->num_dv_ports; ++i) {
610 if (IS_ERR(state->hpd_gpio[i]))
611 continue;
612
613 gpiod_set_value_cansleep(state->hpd_gpio[i], hpd & BIT(i));
614 }
615
616 v4l2_subdev_notify(&state->sd, ADV7604_HOTPLUG, &hpd);
617 }
618
619 static void adv7604_delayed_work_enable_hotplug(struct work_struct *work)
620 {
621 struct delayed_work *dwork = to_delayed_work(work);
622 struct adv7604_state *state = container_of(dwork, struct adv7604_state,
623 delayed_work_enable_hotplug);
624 struct v4l2_subdev *sd = &state->sd;
625
626 v4l2_dbg(2, debug, sd, "%s: enable hotplug\n", __func__);
627
628 adv7604_set_hpd(state, state->edid.present);
629 }
630
631 static inline int hdmi_read(struct v4l2_subdev *sd, u8 reg)
632 {
633 struct adv7604_state *state = to_state(sd);
634
635 return adv_smbus_read_byte_data(state, ADV7604_PAGE_HDMI, reg);
636 }
637
638 static u16 hdmi_read16(struct v4l2_subdev *sd, u8 reg, u16 mask)
639 {
640 return ((hdmi_read(sd, reg) << 8) | hdmi_read(sd, reg + 1)) & mask;
641 }
642
643 static inline int hdmi_write(struct v4l2_subdev *sd, u8 reg, u8 val)
644 {
645 struct adv7604_state *state = to_state(sd);
646
647 return adv_smbus_write_byte_data(state, ADV7604_PAGE_HDMI, reg, val);
648 }
649
650 static inline int hdmi_write_clr_set(struct v4l2_subdev *sd, u8 reg, u8 mask, u8 val)
651 {
652 return hdmi_write(sd, reg, (hdmi_read(sd, reg) & ~mask) | val);
653 }
654
655 static inline int test_read(struct v4l2_subdev *sd, u8 reg)
656 {
657 struct adv7604_state *state = to_state(sd);
658
659 return adv_smbus_read_byte_data(state, ADV7604_PAGE_TEST, reg);
660 }
661
662 static inline int test_write(struct v4l2_subdev *sd, u8 reg, u8 val)
663 {
664 struct adv7604_state *state = to_state(sd);
665
666 return adv_smbus_write_byte_data(state, ADV7604_PAGE_TEST, reg, val);
667 }
668
669 static inline int cp_read(struct v4l2_subdev *sd, u8 reg)
670 {
671 struct adv7604_state *state = to_state(sd);
672
673 return adv_smbus_read_byte_data(state, ADV7604_PAGE_CP, reg);
674 }
675
676 static u16 cp_read16(struct v4l2_subdev *sd, u8 reg, u16 mask)
677 {
678 return ((cp_read(sd, reg) << 8) | cp_read(sd, reg + 1)) & mask;
679 }
680
681 static inline int cp_write(struct v4l2_subdev *sd, u8 reg, u8 val)
682 {
683 struct adv7604_state *state = to_state(sd);
684
685 return adv_smbus_write_byte_data(state, ADV7604_PAGE_CP, reg, val);
686 }
687
688 static inline int cp_write_clr_set(struct v4l2_subdev *sd, u8 reg, u8 mask, u8 val)
689 {
690 return cp_write(sd, reg, (cp_read(sd, reg) & ~mask) | val);
691 }
692
693 static inline int vdp_read(struct v4l2_subdev *sd, u8 reg)
694 {
695 struct adv7604_state *state = to_state(sd);
696
697 return adv_smbus_read_byte_data(state, ADV7604_PAGE_VDP, reg);
698 }
699
700 static inline int vdp_write(struct v4l2_subdev *sd, u8 reg, u8 val)
701 {
702 struct adv7604_state *state = to_state(sd);
703
704 return adv_smbus_write_byte_data(state, ADV7604_PAGE_VDP, reg, val);
705 }
706
707 #define ADV7604_REG(page, offset) (((page) << 8) | (offset))
708 #define ADV7604_REG_SEQ_TERM 0xffff
709
710 #ifdef CONFIG_VIDEO_ADV_DEBUG
711 static int adv7604_read_reg(struct v4l2_subdev *sd, unsigned int reg)
712 {
713 struct adv7604_state *state = to_state(sd);
714 unsigned int page = reg >> 8;
715
716 if (!(BIT(page) & state->info->page_mask))
717 return -EINVAL;
718
719 reg &= 0xff;
720
721 return adv_smbus_read_byte_data(state, page, reg);
722 }
723 #endif
724
725 static int adv7604_write_reg(struct v4l2_subdev *sd, unsigned int reg, u8 val)
726 {
727 struct adv7604_state *state = to_state(sd);
728 unsigned int page = reg >> 8;
729
730 if (!(BIT(page) & state->info->page_mask))
731 return -EINVAL;
732
733 reg &= 0xff;
734
735 return adv_smbus_write_byte_data(state, page, reg, val);
736 }
737
738 static void adv7604_write_reg_seq(struct v4l2_subdev *sd,
739 const struct adv7604_reg_seq *reg_seq)
740 {
741 unsigned int i;
742
743 for (i = 0; reg_seq[i].reg != ADV7604_REG_SEQ_TERM; i++)
744 adv7604_write_reg(sd, reg_seq[i].reg, reg_seq[i].val);
745 }
746
747 /* -----------------------------------------------------------------------------
748 * Format helpers
749 */
750
751 static const struct adv7604_format_info adv7604_formats[] = {
752 { V4L2_MBUS_FMT_RGB888_1X24, ADV7604_OP_CH_SEL_RGB, true, false,
753 ADV7604_OP_MODE_SEL_SDR_444 | ADV7604_OP_FORMAT_SEL_8BIT },
754 { V4L2_MBUS_FMT_YUYV8_2X8, ADV7604_OP_CH_SEL_RGB, false, false,
755 ADV7604_OP_MODE_SEL_SDR_422 | ADV7604_OP_FORMAT_SEL_8BIT },
756 { V4L2_MBUS_FMT_YVYU8_2X8, ADV7604_OP_CH_SEL_RGB, false, true,
757 ADV7604_OP_MODE_SEL_SDR_422 | ADV7604_OP_FORMAT_SEL_8BIT },
758 { V4L2_MBUS_FMT_YUYV10_2X10, ADV7604_OP_CH_SEL_RGB, false, false,
759 ADV7604_OP_MODE_SEL_SDR_422 | ADV7604_OP_FORMAT_SEL_10BIT },
760 { V4L2_MBUS_FMT_YVYU10_2X10, ADV7604_OP_CH_SEL_RGB, false, true,
761 ADV7604_OP_MODE_SEL_SDR_422 | ADV7604_OP_FORMAT_SEL_10BIT },
762 { V4L2_MBUS_FMT_YUYV12_2X12, ADV7604_OP_CH_SEL_RGB, false, false,
763 ADV7604_OP_MODE_SEL_SDR_422 | ADV7604_OP_FORMAT_SEL_12BIT },
764 { V4L2_MBUS_FMT_YVYU12_2X12, ADV7604_OP_CH_SEL_RGB, false, true,
765 ADV7604_OP_MODE_SEL_SDR_422 | ADV7604_OP_FORMAT_SEL_12BIT },
766 { V4L2_MBUS_FMT_UYVY8_1X16, ADV7604_OP_CH_SEL_RBG, false, false,
767 ADV7604_OP_MODE_SEL_SDR_422_2X | ADV7604_OP_FORMAT_SEL_8BIT },
768 { V4L2_MBUS_FMT_VYUY8_1X16, ADV7604_OP_CH_SEL_RBG, false, true,
769 ADV7604_OP_MODE_SEL_SDR_422_2X | ADV7604_OP_FORMAT_SEL_8BIT },
770 { V4L2_MBUS_FMT_YUYV8_1X16, ADV7604_OP_CH_SEL_RGB, false, false,
771 ADV7604_OP_MODE_SEL_SDR_422_2X | ADV7604_OP_FORMAT_SEL_8BIT },
772 { V4L2_MBUS_FMT_YVYU8_1X16, ADV7604_OP_CH_SEL_RGB, false, true,
773 ADV7604_OP_MODE_SEL_SDR_422_2X | ADV7604_OP_FORMAT_SEL_8BIT },
774 { V4L2_MBUS_FMT_UYVY10_1X20, ADV7604_OP_CH_SEL_RBG, false, false,
775 ADV7604_OP_MODE_SEL_SDR_422_2X | ADV7604_OP_FORMAT_SEL_10BIT },
776 { V4L2_MBUS_FMT_VYUY10_1X20, ADV7604_OP_CH_SEL_RBG, false, true,
777 ADV7604_OP_MODE_SEL_SDR_422_2X | ADV7604_OP_FORMAT_SEL_10BIT },
778 { V4L2_MBUS_FMT_YUYV10_1X20, ADV7604_OP_CH_SEL_RGB, false, false,
779 ADV7604_OP_MODE_SEL_SDR_422_2X | ADV7604_OP_FORMAT_SEL_10BIT },
780 { V4L2_MBUS_FMT_YVYU10_1X20, ADV7604_OP_CH_SEL_RGB, false, true,
781 ADV7604_OP_MODE_SEL_SDR_422_2X | ADV7604_OP_FORMAT_SEL_10BIT },
782 { V4L2_MBUS_FMT_UYVY12_1X24, ADV7604_OP_CH_SEL_RBG, false, false,
783 ADV7604_OP_MODE_SEL_SDR_422_2X | ADV7604_OP_FORMAT_SEL_12BIT },
784 { V4L2_MBUS_FMT_VYUY12_1X24, ADV7604_OP_CH_SEL_RBG, false, true,
785 ADV7604_OP_MODE_SEL_SDR_422_2X | ADV7604_OP_FORMAT_SEL_12BIT },
786 { V4L2_MBUS_FMT_YUYV12_1X24, ADV7604_OP_CH_SEL_RGB, false, false,
787 ADV7604_OP_MODE_SEL_SDR_422_2X | ADV7604_OP_FORMAT_SEL_12BIT },
788 { V4L2_MBUS_FMT_YVYU12_1X24, ADV7604_OP_CH_SEL_RGB, false, true,
789 ADV7604_OP_MODE_SEL_SDR_422_2X | ADV7604_OP_FORMAT_SEL_12BIT },
790 };
791
792 static const struct adv7604_format_info adv7611_formats[] = {
793 { V4L2_MBUS_FMT_RGB888_1X24, ADV7604_OP_CH_SEL_RGB, true, false,
794 ADV7604_OP_MODE_SEL_SDR_444 | ADV7604_OP_FORMAT_SEL_8BIT },
795 { V4L2_MBUS_FMT_YUYV8_2X8, ADV7604_OP_CH_SEL_RGB, false, false,
796 ADV7604_OP_MODE_SEL_SDR_422 | ADV7604_OP_FORMAT_SEL_8BIT },
797 { V4L2_MBUS_FMT_YVYU8_2X8, ADV7604_OP_CH_SEL_RGB, false, true,
798 ADV7604_OP_MODE_SEL_SDR_422 | ADV7604_OP_FORMAT_SEL_8BIT },
799 { V4L2_MBUS_FMT_YUYV12_2X12, ADV7604_OP_CH_SEL_RGB, false, false,
800 ADV7604_OP_MODE_SEL_SDR_422 | ADV7604_OP_FORMAT_SEL_12BIT },
801 { V4L2_MBUS_FMT_YVYU12_2X12, ADV7604_OP_CH_SEL_RGB, false, true,
802 ADV7604_OP_MODE_SEL_SDR_422 | ADV7604_OP_FORMAT_SEL_12BIT },
803 { V4L2_MBUS_FMT_UYVY8_1X16, ADV7604_OP_CH_SEL_RBG, false, false,
804 ADV7604_OP_MODE_SEL_SDR_422_2X | ADV7604_OP_FORMAT_SEL_8BIT },
805 { V4L2_MBUS_FMT_VYUY8_1X16, ADV7604_OP_CH_SEL_RBG, false, true,
806 ADV7604_OP_MODE_SEL_SDR_422_2X | ADV7604_OP_FORMAT_SEL_8BIT },
807 { V4L2_MBUS_FMT_YUYV8_1X16, ADV7604_OP_CH_SEL_RGB, false, false,
808 ADV7604_OP_MODE_SEL_SDR_422_2X | ADV7604_OP_FORMAT_SEL_8BIT },
809 { V4L2_MBUS_FMT_YVYU8_1X16, ADV7604_OP_CH_SEL_RGB, false, true,
810 ADV7604_OP_MODE_SEL_SDR_422_2X | ADV7604_OP_FORMAT_SEL_8BIT },
811 { V4L2_MBUS_FMT_UYVY12_1X24, ADV7604_OP_CH_SEL_RBG, false, false,
812 ADV7604_OP_MODE_SEL_SDR_422_2X | ADV7604_OP_FORMAT_SEL_12BIT },
813 { V4L2_MBUS_FMT_VYUY12_1X24, ADV7604_OP_CH_SEL_RBG, false, true,
814 ADV7604_OP_MODE_SEL_SDR_422_2X | ADV7604_OP_FORMAT_SEL_12BIT },
815 { V4L2_MBUS_FMT_YUYV12_1X24, ADV7604_OP_CH_SEL_RGB, false, false,
816 ADV7604_OP_MODE_SEL_SDR_422_2X | ADV7604_OP_FORMAT_SEL_12BIT },
817 { V4L2_MBUS_FMT_YVYU12_1X24, ADV7604_OP_CH_SEL_RGB, false, true,
818 ADV7604_OP_MODE_SEL_SDR_422_2X | ADV7604_OP_FORMAT_SEL_12BIT },
819 };
820
821 static const struct adv7604_format_info *
822 adv7604_format_info(struct adv7604_state *state, enum v4l2_mbus_pixelcode code)
823 {
824 unsigned int i;
825
826 for (i = 0; i < state->info->nformats; ++i) {
827 if (state->info->formats[i].code == code)
828 return &state->info->formats[i];
829 }
830
831 return NULL;
832 }
833
834 /* ----------------------------------------------------------------------- */
835
836 static inline bool is_analog_input(struct v4l2_subdev *sd)
837 {
838 struct adv7604_state *state = to_state(sd);
839
840 return state->selected_input == ADV7604_PAD_VGA_RGB ||
841 state->selected_input == ADV7604_PAD_VGA_COMP;
842 }
843
844 static inline bool is_digital_input(struct v4l2_subdev *sd)
845 {
846 struct adv7604_state *state = to_state(sd);
847
848 return state->selected_input == ADV7604_PAD_HDMI_PORT_A ||
849 state->selected_input == ADV7604_PAD_HDMI_PORT_B ||
850 state->selected_input == ADV7604_PAD_HDMI_PORT_C ||
851 state->selected_input == ADV7604_PAD_HDMI_PORT_D;
852 }
853
854 /* ----------------------------------------------------------------------- */
855
856 #ifdef CONFIG_VIDEO_ADV_DEBUG
857 static void adv7604_inv_register(struct v4l2_subdev *sd)
858 {
859 v4l2_info(sd, "0x000-0x0ff: IO Map\n");
860 v4l2_info(sd, "0x100-0x1ff: AVLink Map\n");
861 v4l2_info(sd, "0x200-0x2ff: CEC Map\n");
862 v4l2_info(sd, "0x300-0x3ff: InfoFrame Map\n");
863 v4l2_info(sd, "0x400-0x4ff: ESDP Map\n");
864 v4l2_info(sd, "0x500-0x5ff: DPP Map\n");
865 v4l2_info(sd, "0x600-0x6ff: AFE Map\n");
866 v4l2_info(sd, "0x700-0x7ff: Repeater Map\n");
867 v4l2_info(sd, "0x800-0x8ff: EDID Map\n");
868 v4l2_info(sd, "0x900-0x9ff: HDMI Map\n");
869 v4l2_info(sd, "0xa00-0xaff: Test Map\n");
870 v4l2_info(sd, "0xb00-0xbff: CP Map\n");
871 v4l2_info(sd, "0xc00-0xcff: VDP Map\n");
872 }
873
874 static int adv7604_g_register(struct v4l2_subdev *sd,
875 struct v4l2_dbg_register *reg)
876 {
877 int ret;
878
879 ret = adv7604_read_reg(sd, reg->reg);
880 if (ret < 0) {
881 v4l2_info(sd, "Register %03llx not supported\n", reg->reg);
882 adv7604_inv_register(sd);
883 return ret;
884 }
885
886 reg->size = 1;
887 reg->val = ret;
888
889 return 0;
890 }
891
892 static int adv7604_s_register(struct v4l2_subdev *sd,
893 const struct v4l2_dbg_register *reg)
894 {
895 int ret;
896
897 ret = adv7604_write_reg(sd, reg->reg, reg->val);
898 if (ret < 0) {
899 v4l2_info(sd, "Register %03llx not supported\n", reg->reg);
900 adv7604_inv_register(sd);
901 return ret;
902 }
903
904 return 0;
905 }
906 #endif
907
908 static unsigned int adv7604_read_cable_det(struct v4l2_subdev *sd)
909 {
910 u8 value = io_read(sd, 0x6f);
911
912 return ((value & 0x10) >> 4)
913 | ((value & 0x08) >> 2)
914 | ((value & 0x04) << 0)
915 | ((value & 0x02) << 2);
916 }
917
918 static unsigned int adv7611_read_cable_det(struct v4l2_subdev *sd)
919 {
920 u8 value = io_read(sd, 0x6f);
921
922 return value & 1;
923 }
924
925 static int adv7604_s_detect_tx_5v_ctrl(struct v4l2_subdev *sd)
926 {
927 struct adv7604_state *state = to_state(sd);
928 const struct adv7604_chip_info *info = state->info;
929
930 return v4l2_ctrl_s_ctrl(state->detect_tx_5v_ctrl,
931 info->read_cable_det(sd));
932 }
933
934 static int find_and_set_predefined_video_timings(struct v4l2_subdev *sd,
935 u8 prim_mode,
936 const struct adv7604_video_standards *predef_vid_timings,
937 const struct v4l2_dv_timings *timings)
938 {
939 int i;
940
941 for (i = 0; predef_vid_timings[i].timings.bt.width; i++) {
942 if (!v4l2_match_dv_timings(timings, &predef_vid_timings[i].timings,
943 is_digital_input(sd) ? 250000 : 1000000))
944 continue;
945 io_write(sd, 0x00, predef_vid_timings[i].vid_std); /* video std */
946 io_write(sd, 0x01, (predef_vid_timings[i].v_freq << 4) +
947 prim_mode); /* v_freq and prim mode */
948 return 0;
949 }
950
951 return -1;
952 }
953
954 static int configure_predefined_video_timings(struct v4l2_subdev *sd,
955 struct v4l2_dv_timings *timings)
956 {
957 struct adv7604_state *state = to_state(sd);
958 int err;
959
960 v4l2_dbg(1, debug, sd, "%s", __func__);
961
962 if (adv7604_has_afe(state)) {
963 /* reset to default values */
964 io_write(sd, 0x16, 0x43);
965 io_write(sd, 0x17, 0x5a);
966 }
967 /* disable embedded syncs for auto graphics mode */
968 cp_write_clr_set(sd, 0x81, 0x10, 0x00);
969 cp_write(sd, 0x8f, 0x00);
970 cp_write(sd, 0x90, 0x00);
971 cp_write(sd, 0xa2, 0x00);
972 cp_write(sd, 0xa3, 0x00);
973 cp_write(sd, 0xa4, 0x00);
974 cp_write(sd, 0xa5, 0x00);
975 cp_write(sd, 0xa6, 0x00);
976 cp_write(sd, 0xa7, 0x00);
977 cp_write(sd, 0xab, 0x00);
978 cp_write(sd, 0xac, 0x00);
979
980 if (is_analog_input(sd)) {
981 err = find_and_set_predefined_video_timings(sd,
982 0x01, adv7604_prim_mode_comp, timings);
983 if (err)
984 err = find_and_set_predefined_video_timings(sd,
985 0x02, adv7604_prim_mode_gr, timings);
986 } else if (is_digital_input(sd)) {
987 err = find_and_set_predefined_video_timings(sd,
988 0x05, adv7604_prim_mode_hdmi_comp, timings);
989 if (err)
990 err = find_and_set_predefined_video_timings(sd,
991 0x06, adv7604_prim_mode_hdmi_gr, timings);
992 } else {
993 v4l2_dbg(2, debug, sd, "%s: Unknown port %d selected\n",
994 __func__, state->selected_input);
995 err = -1;
996 }
997
998
999 return err;
1000 }
1001
1002 static void configure_custom_video_timings(struct v4l2_subdev *sd,
1003 const struct v4l2_bt_timings *bt)
1004 {
1005 struct adv7604_state *state = to_state(sd);
1006 u32 width = htotal(bt);
1007 u32 height = vtotal(bt);
1008 u16 cp_start_sav = bt->hsync + bt->hbackporch - 4;
1009 u16 cp_start_eav = width - bt->hfrontporch;
1010 u16 cp_start_vbi = height - bt->vfrontporch;
1011 u16 cp_end_vbi = bt->vsync + bt->vbackporch;
1012 u16 ch1_fr_ll = (((u32)bt->pixelclock / 100) > 0) ?
1013 ((width * (ADV7604_fsc / 100)) / ((u32)bt->pixelclock / 100)) : 0;
1014 const u8 pll[2] = {
1015 0xc0 | ((width >> 8) & 0x1f),
1016 width & 0xff
1017 };
1018
1019 v4l2_dbg(2, debug, sd, "%s\n", __func__);
1020
1021 if (is_analog_input(sd)) {
1022 /* auto graphics */
1023 io_write(sd, 0x00, 0x07); /* video std */
1024 io_write(sd, 0x01, 0x02); /* prim mode */
1025 /* enable embedded syncs for auto graphics mode */
1026 cp_write_clr_set(sd, 0x81, 0x10, 0x10);
1027
1028 /* Should only be set in auto-graphics mode [REF_02, p. 91-92] */
1029 /* setup PLL_DIV_MAN_EN and PLL_DIV_RATIO */
1030 /* IO-map reg. 0x16 and 0x17 should be written in sequence */
1031 if (adv_smbus_write_i2c_block_data(state, ADV7604_PAGE_IO,
1032 0x16, 2, pll))
1033 v4l2_err(sd, "writing to reg 0x16 and 0x17 failed\n");
1034
1035 /* active video - horizontal timing */
1036 cp_write(sd, 0xa2, (cp_start_sav >> 4) & 0xff);
1037 cp_write(sd, 0xa3, ((cp_start_sav & 0x0f) << 4) |
1038 ((cp_start_eav >> 8) & 0x0f));
1039 cp_write(sd, 0xa4, cp_start_eav & 0xff);
1040
1041 /* active video - vertical timing */
1042 cp_write(sd, 0xa5, (cp_start_vbi >> 4) & 0xff);
1043 cp_write(sd, 0xa6, ((cp_start_vbi & 0xf) << 4) |
1044 ((cp_end_vbi >> 8) & 0xf));
1045 cp_write(sd, 0xa7, cp_end_vbi & 0xff);
1046 } else if (is_digital_input(sd)) {
1047 /* set default prim_mode/vid_std for HDMI
1048 according to [REF_03, c. 4.2] */
1049 io_write(sd, 0x00, 0x02); /* video std */
1050 io_write(sd, 0x01, 0x06); /* prim mode */
1051 } else {
1052 v4l2_dbg(2, debug, sd, "%s: Unknown port %d selected\n",
1053 __func__, state->selected_input);
1054 }
1055
1056 cp_write(sd, 0x8f, (ch1_fr_ll >> 8) & 0x7);
1057 cp_write(sd, 0x90, ch1_fr_ll & 0xff);
1058 cp_write(sd, 0xab, (height >> 4) & 0xff);
1059 cp_write(sd, 0xac, (height & 0x0f) << 4);
1060 }
1061
1062 static void adv7604_set_offset(struct v4l2_subdev *sd, bool auto_offset, u16 offset_a, u16 offset_b, u16 offset_c)
1063 {
1064 struct adv7604_state *state = to_state(sd);
1065 u8 offset_buf[4];
1066
1067 if (auto_offset) {
1068 offset_a = 0x3ff;
1069 offset_b = 0x3ff;
1070 offset_c = 0x3ff;
1071 }
1072
1073 v4l2_dbg(2, debug, sd, "%s: %s offset: a = 0x%x, b = 0x%x, c = 0x%x\n",
1074 __func__, auto_offset ? "Auto" : "Manual",
1075 offset_a, offset_b, offset_c);
1076
1077 offset_buf[0] = (cp_read(sd, 0x77) & 0xc0) | ((offset_a & 0x3f0) >> 4);
1078 offset_buf[1] = ((offset_a & 0x00f) << 4) | ((offset_b & 0x3c0) >> 6);
1079 offset_buf[2] = ((offset_b & 0x03f) << 2) | ((offset_c & 0x300) >> 8);
1080 offset_buf[3] = offset_c & 0x0ff;
1081
1082 /* Registers must be written in this order with no i2c access in between */
1083 if (adv_smbus_write_i2c_block_data(state, ADV7604_PAGE_CP,
1084 0x77, 4, offset_buf))
1085 v4l2_err(sd, "%s: i2c error writing to CP reg 0x77, 0x78, 0x79, 0x7a\n", __func__);
1086 }
1087
1088 static void adv7604_set_gain(struct v4l2_subdev *sd, bool auto_gain, u16 gain_a, u16 gain_b, u16 gain_c)
1089 {
1090 struct adv7604_state *state = to_state(sd);
1091 u8 gain_buf[4];
1092 u8 gain_man = 1;
1093 u8 agc_mode_man = 1;
1094
1095 if (auto_gain) {
1096 gain_man = 0;
1097 agc_mode_man = 0;
1098 gain_a = 0x100;
1099 gain_b = 0x100;
1100 gain_c = 0x100;
1101 }
1102
1103 v4l2_dbg(2, debug, sd, "%s: %s gain: a = 0x%x, b = 0x%x, c = 0x%x\n",
1104 __func__, auto_gain ? "Auto" : "Manual",
1105 gain_a, gain_b, gain_c);
1106
1107 gain_buf[0] = ((gain_man << 7) | (agc_mode_man << 6) | ((gain_a & 0x3f0) >> 4));
1108 gain_buf[1] = (((gain_a & 0x00f) << 4) | ((gain_b & 0x3c0) >> 6));
1109 gain_buf[2] = (((gain_b & 0x03f) << 2) | ((gain_c & 0x300) >> 8));
1110 gain_buf[3] = ((gain_c & 0x0ff));
1111
1112 /* Registers must be written in this order with no i2c access in between */
1113 if (adv_smbus_write_i2c_block_data(state, ADV7604_PAGE_CP,
1114 0x73, 4, gain_buf))
1115 v4l2_err(sd, "%s: i2c error writing to CP reg 0x73, 0x74, 0x75, 0x76\n", __func__);
1116 }
1117
1118 static void set_rgb_quantization_range(struct v4l2_subdev *sd)
1119 {
1120 struct adv7604_state *state = to_state(sd);
1121 bool rgb_output = io_read(sd, 0x02) & 0x02;
1122 bool hdmi_signal = hdmi_read(sd, 0x05) & 0x80;
1123
1124 v4l2_dbg(2, debug, sd, "%s: RGB quantization range: %d, RGB out: %d, HDMI: %d\n",
1125 __func__, state->rgb_quantization_range,
1126 rgb_output, hdmi_signal);
1127
1128 adv7604_set_gain(sd, true, 0x0, 0x0, 0x0);
1129 adv7604_set_offset(sd, true, 0x0, 0x0, 0x0);
1130
1131 switch (state->rgb_quantization_range) {
1132 case V4L2_DV_RGB_RANGE_AUTO:
1133 if (state->selected_input == ADV7604_PAD_VGA_RGB) {
1134 /* Receiving analog RGB signal
1135 * Set RGB full range (0-255) */
1136 io_write_clr_set(sd, 0x02, 0xf0, 0x10);
1137 break;
1138 }
1139
1140 if (state->selected_input == ADV7604_PAD_VGA_COMP) {
1141 /* Receiving analog YPbPr signal
1142 * Set automode */
1143 io_write_clr_set(sd, 0x02, 0xf0, 0xf0);
1144 break;
1145 }
1146
1147 if (hdmi_signal) {
1148 /* Receiving HDMI signal
1149 * Set automode */
1150 io_write_clr_set(sd, 0x02, 0xf0, 0xf0);
1151 break;
1152 }
1153
1154 /* Receiving DVI-D signal
1155 * ADV7604 selects RGB limited range regardless of
1156 * input format (CE/IT) in automatic mode */
1157 if (state->timings.bt.standards & V4L2_DV_BT_STD_CEA861) {
1158 /* RGB limited range (16-235) */
1159 io_write_clr_set(sd, 0x02, 0xf0, 0x00);
1160 } else {
1161 /* RGB full range (0-255) */
1162 io_write_clr_set(sd, 0x02, 0xf0, 0x10);
1163
1164 if (is_digital_input(sd) && rgb_output) {
1165 adv7604_set_offset(sd, false, 0x40, 0x40, 0x40);
1166 } else {
1167 adv7604_set_gain(sd, false, 0xe0, 0xe0, 0xe0);
1168 adv7604_set_offset(sd, false, 0x70, 0x70, 0x70);
1169 }
1170 }
1171 break;
1172 case V4L2_DV_RGB_RANGE_LIMITED:
1173 if (state->selected_input == ADV7604_PAD_VGA_COMP) {
1174 /* YCrCb limited range (16-235) */
1175 io_write_clr_set(sd, 0x02, 0xf0, 0x20);
1176 break;
1177 }
1178
1179 /* RGB limited range (16-235) */
1180 io_write_clr_set(sd, 0x02, 0xf0, 0x00);
1181
1182 break;
1183 case V4L2_DV_RGB_RANGE_FULL:
1184 if (state->selected_input == ADV7604_PAD_VGA_COMP) {
1185 /* YCrCb full range (0-255) */
1186 io_write_clr_set(sd, 0x02, 0xf0, 0x60);
1187 break;
1188 }
1189
1190 /* RGB full range (0-255) */
1191 io_write_clr_set(sd, 0x02, 0xf0, 0x10);
1192
1193 if (is_analog_input(sd) || hdmi_signal)
1194 break;
1195
1196 /* Adjust gain/offset for DVI-D signals only */
1197 if (rgb_output) {
1198 adv7604_set_offset(sd, false, 0x40, 0x40, 0x40);
1199 } else {
1200 adv7604_set_gain(sd, false, 0xe0, 0xe0, 0xe0);
1201 adv7604_set_offset(sd, false, 0x70, 0x70, 0x70);
1202 }
1203 break;
1204 }
1205 }
1206
1207 static int adv7604_s_ctrl(struct v4l2_ctrl *ctrl)
1208 {
1209 struct v4l2_subdev *sd =
1210 &container_of(ctrl->handler, struct adv7604_state, hdl)->sd;
1211
1212 struct adv7604_state *state = to_state(sd);
1213
1214 switch (ctrl->id) {
1215 case V4L2_CID_BRIGHTNESS:
1216 cp_write(sd, 0x3c, ctrl->val);
1217 return 0;
1218 case V4L2_CID_CONTRAST:
1219 cp_write(sd, 0x3a, ctrl->val);
1220 return 0;
1221 case V4L2_CID_SATURATION:
1222 cp_write(sd, 0x3b, ctrl->val);
1223 return 0;
1224 case V4L2_CID_HUE:
1225 cp_write(sd, 0x3d, ctrl->val);
1226 return 0;
1227 case V4L2_CID_DV_RX_RGB_RANGE:
1228 state->rgb_quantization_range = ctrl->val;
1229 set_rgb_quantization_range(sd);
1230 return 0;
1231 case V4L2_CID_ADV_RX_ANALOG_SAMPLING_PHASE:
1232 if (!adv7604_has_afe(state))
1233 return -EINVAL;
1234 /* Set the analog sampling phase. This is needed to find the
1235 best sampling phase for analog video: an application or
1236 driver has to try a number of phases and analyze the picture
1237 quality before settling on the best performing phase. */
1238 afe_write(sd, 0xc8, ctrl->val);
1239 return 0;
1240 case V4L2_CID_ADV_RX_FREE_RUN_COLOR_MANUAL:
1241 /* Use the default blue color for free running mode,
1242 or supply your own. */
1243 cp_write_clr_set(sd, 0xbf, 0x04, ctrl->val << 2);
1244 return 0;
1245 case V4L2_CID_ADV_RX_FREE_RUN_COLOR:
1246 cp_write(sd, 0xc0, (ctrl->val & 0xff0000) >> 16);
1247 cp_write(sd, 0xc1, (ctrl->val & 0x00ff00) >> 8);
1248 cp_write(sd, 0xc2, (u8)(ctrl->val & 0x0000ff));
1249 return 0;
1250 }
1251 return -EINVAL;
1252 }
1253
1254 /* ----------------------------------------------------------------------- */
1255
1256 static inline bool no_power(struct v4l2_subdev *sd)
1257 {
1258 /* Entire chip or CP powered off */
1259 return io_read(sd, 0x0c) & 0x24;
1260 }
1261
1262 static inline bool no_signal_tmds(struct v4l2_subdev *sd)
1263 {
1264 struct adv7604_state *state = to_state(sd);
1265
1266 return !(io_read(sd, 0x6a) & (0x10 >> state->selected_input));
1267 }
1268
1269 static inline bool no_lock_tmds(struct v4l2_subdev *sd)
1270 {
1271 struct adv7604_state *state = to_state(sd);
1272 const struct adv7604_chip_info *info = state->info;
1273
1274 return (io_read(sd, 0x6a) & info->tdms_lock_mask) != info->tdms_lock_mask;
1275 }
1276
1277 static inline bool is_hdmi(struct v4l2_subdev *sd)
1278 {
1279 return hdmi_read(sd, 0x05) & 0x80;
1280 }
1281
1282 static inline bool no_lock_sspd(struct v4l2_subdev *sd)
1283 {
1284 struct adv7604_state *state = to_state(sd);
1285
1286 /*
1287 * Chips without a AFE don't expose registers for the SSPD, so just assume
1288 * that we have a lock.
1289 */
1290 if (adv7604_has_afe(state))
1291 return false;
1292
1293 /* TODO channel 2 */
1294 return ((cp_read(sd, 0xb5) & 0xd0) != 0xd0);
1295 }
1296
1297 static inline bool no_lock_stdi(struct v4l2_subdev *sd)
1298 {
1299 /* TODO channel 2 */
1300 return !(cp_read(sd, 0xb1) & 0x80);
1301 }
1302
1303 static inline bool no_signal(struct v4l2_subdev *sd)
1304 {
1305 bool ret;
1306
1307 ret = no_power(sd);
1308
1309 ret |= no_lock_stdi(sd);
1310 ret |= no_lock_sspd(sd);
1311
1312 if (is_digital_input(sd)) {
1313 ret |= no_lock_tmds(sd);
1314 ret |= no_signal_tmds(sd);
1315 }
1316
1317 return ret;
1318 }
1319
1320 static inline bool no_lock_cp(struct v4l2_subdev *sd)
1321 {
1322 struct adv7604_state *state = to_state(sd);
1323
1324 if (!adv7604_has_afe(state))
1325 return false;
1326
1327 /* CP has detected a non standard number of lines on the incoming
1328 video compared to what it is configured to receive by s_dv_timings */
1329 return io_read(sd, 0x12) & 0x01;
1330 }
1331
1332 static int adv7604_g_input_status(struct v4l2_subdev *sd, u32 *status)
1333 {
1334 *status = 0;
1335 *status |= no_power(sd) ? V4L2_IN_ST_NO_POWER : 0;
1336 *status |= no_signal(sd) ? V4L2_IN_ST_NO_SIGNAL : 0;
1337 if (no_lock_cp(sd))
1338 *status |= is_digital_input(sd) ? V4L2_IN_ST_NO_SYNC : V4L2_IN_ST_NO_H_LOCK;
1339
1340 v4l2_dbg(1, debug, sd, "%s: status = 0x%x\n", __func__, *status);
1341
1342 return 0;
1343 }
1344
1345 /* ----------------------------------------------------------------------- */
1346
1347 struct stdi_readback {
1348 u16 bl, lcf, lcvs;
1349 u8 hs_pol, vs_pol;
1350 bool interlaced;
1351 };
1352
1353 static int stdi2dv_timings(struct v4l2_subdev *sd,
1354 struct stdi_readback *stdi,
1355 struct v4l2_dv_timings *timings)
1356 {
1357 struct adv7604_state *state = to_state(sd);
1358 u32 hfreq = (ADV7604_fsc * 8) / stdi->bl;
1359 u32 pix_clk;
1360 int i;
1361
1362 for (i = 0; adv7604_timings[i].bt.height; i++) {
1363 if (vtotal(&adv7604_timings[i].bt) != stdi->lcf + 1)
1364 continue;
1365 if (adv7604_timings[i].bt.vsync != stdi->lcvs)
1366 continue;
1367
1368 pix_clk = hfreq * htotal(&adv7604_timings[i].bt);
1369
1370 if ((pix_clk < adv7604_timings[i].bt.pixelclock + 1000000) &&
1371 (pix_clk > adv7604_timings[i].bt.pixelclock - 1000000)) {
1372 *timings = adv7604_timings[i];
1373 return 0;
1374 }
1375 }
1376
1377 if (v4l2_detect_cvt(stdi->lcf + 1, hfreq, stdi->lcvs,
1378 (stdi->hs_pol == '+' ? V4L2_DV_HSYNC_POS_POL : 0) |
1379 (stdi->vs_pol == '+' ? V4L2_DV_VSYNC_POS_POL : 0),
1380 timings))
1381 return 0;
1382 if (v4l2_detect_gtf(stdi->lcf + 1, hfreq, stdi->lcvs,
1383 (stdi->hs_pol == '+' ? V4L2_DV_HSYNC_POS_POL : 0) |
1384 (stdi->vs_pol == '+' ? V4L2_DV_VSYNC_POS_POL : 0),
1385 state->aspect_ratio, timings))
1386 return 0;
1387
1388 v4l2_dbg(2, debug, sd,
1389 "%s: No format candidate found for lcvs = %d, lcf=%d, bl = %d, %chsync, %cvsync\n",
1390 __func__, stdi->lcvs, stdi->lcf, stdi->bl,
1391 stdi->hs_pol, stdi->vs_pol);
1392 return -1;
1393 }
1394
1395
1396 static int read_stdi(struct v4l2_subdev *sd, struct stdi_readback *stdi)
1397 {
1398 struct adv7604_state *state = to_state(sd);
1399 const struct adv7604_chip_info *info = state->info;
1400 u8 polarity;
1401
1402 if (no_lock_stdi(sd) || no_lock_sspd(sd)) {
1403 v4l2_dbg(2, debug, sd, "%s: STDI and/or SSPD not locked\n", __func__);
1404 return -1;
1405 }
1406
1407 /* read STDI */
1408 stdi->bl = cp_read16(sd, 0xb1, 0x3fff);
1409 stdi->lcf = cp_read16(sd, info->lcf_reg, 0x7ff);
1410 stdi->lcvs = cp_read(sd, 0xb3) >> 3;
1411 stdi->interlaced = io_read(sd, 0x12) & 0x10;
1412
1413 if (adv7604_has_afe(state)) {
1414 /* read SSPD */
1415 polarity = cp_read(sd, 0xb5);
1416 if ((polarity & 0x03) == 0x01) {
1417 stdi->hs_pol = polarity & 0x10
1418 ? (polarity & 0x08 ? '+' : '-') : 'x';
1419 stdi->vs_pol = polarity & 0x40
1420 ? (polarity & 0x20 ? '+' : '-') : 'x';
1421 } else {
1422 stdi->hs_pol = 'x';
1423 stdi->vs_pol = 'x';
1424 }
1425 } else {
1426 polarity = hdmi_read(sd, 0x05);
1427 stdi->hs_pol = polarity & 0x20 ? '+' : '-';
1428 stdi->vs_pol = polarity & 0x10 ? '+' : '-';
1429 }
1430
1431 if (no_lock_stdi(sd) || no_lock_sspd(sd)) {
1432 v4l2_dbg(2, debug, sd,
1433 "%s: signal lost during readout of STDI/SSPD\n", __func__);
1434 return -1;
1435 }
1436
1437 if (stdi->lcf < 239 || stdi->bl < 8 || stdi->bl == 0x3fff) {
1438 v4l2_dbg(2, debug, sd, "%s: invalid signal\n", __func__);
1439 memset(stdi, 0, sizeof(struct stdi_readback));
1440 return -1;
1441 }
1442
1443 v4l2_dbg(2, debug, sd,
1444 "%s: lcf (frame height - 1) = %d, bl = %d, lcvs (vsync) = %d, %chsync, %cvsync, %s\n",
1445 __func__, stdi->lcf, stdi->bl, stdi->lcvs,
1446 stdi->hs_pol, stdi->vs_pol,
1447 stdi->interlaced ? "interlaced" : "progressive");
1448
1449 return 0;
1450 }
1451
1452 static int adv7604_enum_dv_timings(struct v4l2_subdev *sd,
1453 struct v4l2_enum_dv_timings *timings)
1454 {
1455 struct adv7604_state *state = to_state(sd);
1456
1457 if (timings->index >= ARRAY_SIZE(adv7604_timings) - 1)
1458 return -EINVAL;
1459
1460 if (timings->pad >= state->source_pad)
1461 return -EINVAL;
1462
1463 memset(timings->reserved, 0, sizeof(timings->reserved));
1464 timings->timings = adv7604_timings[timings->index];
1465 return 0;
1466 }
1467
1468 static int adv7604_dv_timings_cap(struct v4l2_subdev *sd,
1469 struct v4l2_dv_timings_cap *cap)
1470 {
1471 struct adv7604_state *state = to_state(sd);
1472
1473 if (cap->pad >= state->source_pad)
1474 return -EINVAL;
1475
1476 cap->type = V4L2_DV_BT_656_1120;
1477 cap->bt.max_width = 1920;
1478 cap->bt.max_height = 1200;
1479 cap->bt.min_pixelclock = 25000000;
1480
1481 switch (cap->pad) {
1482 case ADV7604_PAD_HDMI_PORT_A:
1483 case ADV7604_PAD_HDMI_PORT_B:
1484 case ADV7604_PAD_HDMI_PORT_C:
1485 case ADV7604_PAD_HDMI_PORT_D:
1486 cap->bt.max_pixelclock = 225000000;
1487 break;
1488 case ADV7604_PAD_VGA_RGB:
1489 case ADV7604_PAD_VGA_COMP:
1490 default:
1491 cap->bt.max_pixelclock = 170000000;
1492 break;
1493 }
1494
1495 cap->bt.standards = V4L2_DV_BT_STD_CEA861 | V4L2_DV_BT_STD_DMT |
1496 V4L2_DV_BT_STD_GTF | V4L2_DV_BT_STD_CVT;
1497 cap->bt.capabilities = V4L2_DV_BT_CAP_PROGRESSIVE |
1498 V4L2_DV_BT_CAP_REDUCED_BLANKING | V4L2_DV_BT_CAP_CUSTOM;
1499 return 0;
1500 }
1501
1502 /* Fill the optional fields .standards and .flags in struct v4l2_dv_timings
1503 if the format is listed in adv7604_timings[] */
1504 static void adv7604_fill_optional_dv_timings_fields(struct v4l2_subdev *sd,
1505 struct v4l2_dv_timings *timings)
1506 {
1507 int i;
1508
1509 for (i = 0; adv7604_timings[i].bt.width; i++) {
1510 if (v4l2_match_dv_timings(timings, &adv7604_timings[i],
1511 is_digital_input(sd) ? 250000 : 1000000)) {
1512 *timings = adv7604_timings[i];
1513 break;
1514 }
1515 }
1516 }
1517
1518 static unsigned int adv7604_read_hdmi_pixelclock(struct v4l2_subdev *sd)
1519 {
1520 unsigned int freq;
1521 int a, b;
1522
1523 a = hdmi_read(sd, 0x06);
1524 b = hdmi_read(sd, 0x3b);
1525 if (a < 0 || b < 0)
1526 return 0;
1527 freq = a * 1000000 + ((b & 0x30) >> 4) * 250000;
1528
1529 if (is_hdmi(sd)) {
1530 /* adjust for deep color mode */
1531 unsigned bits_per_channel = ((hdmi_read(sd, 0x0b) & 0x60) >> 4) + 8;
1532
1533 freq = freq * 8 / bits_per_channel;
1534 }
1535
1536 return freq;
1537 }
1538
1539 static unsigned int adv7611_read_hdmi_pixelclock(struct v4l2_subdev *sd)
1540 {
1541 int a, b;
1542
1543 a = hdmi_read(sd, 0x51);
1544 b = hdmi_read(sd, 0x52);
1545 if (a < 0 || b < 0)
1546 return 0;
1547 return ((a << 1) | (b >> 7)) * 1000000 + (b & 0x7f) * 1000000 / 128;
1548 }
1549
1550 static int adv7604_query_dv_timings(struct v4l2_subdev *sd,
1551 struct v4l2_dv_timings *timings)
1552 {
1553 struct adv7604_state *state = to_state(sd);
1554 const struct adv7604_chip_info *info = state->info;
1555 struct v4l2_bt_timings *bt = &timings->bt;
1556 struct stdi_readback stdi;
1557
1558 if (!timings)
1559 return -EINVAL;
1560
1561 memset(timings, 0, sizeof(struct v4l2_dv_timings));
1562
1563 if (no_signal(sd)) {
1564 state->restart_stdi_once = true;
1565 v4l2_dbg(1, debug, sd, "%s: no valid signal\n", __func__);
1566 return -ENOLINK;
1567 }
1568
1569 /* read STDI */
1570 if (read_stdi(sd, &stdi)) {
1571 v4l2_dbg(1, debug, sd, "%s: STDI/SSPD not locked\n", __func__);
1572 return -ENOLINK;
1573 }
1574 bt->interlaced = stdi.interlaced ?
1575 V4L2_DV_INTERLACED : V4L2_DV_PROGRESSIVE;
1576
1577 if (is_digital_input(sd)) {
1578 timings->type = V4L2_DV_BT_656_1120;
1579
1580 /* FIXME: All masks are incorrect for ADV7611 */
1581 bt->width = hdmi_read16(sd, 0x07, 0xfff);
1582 bt->height = hdmi_read16(sd, 0x09, 0xfff);
1583 bt->pixelclock = info->read_hdmi_pixelclock(sd);
1584 bt->hfrontporch = hdmi_read16(sd, 0x20, 0x3ff);
1585 bt->hsync = hdmi_read16(sd, 0x22, 0x3ff);
1586 bt->hbackporch = hdmi_read16(sd, 0x24, 0x3ff);
1587 bt->vfrontporch = hdmi_read16(sd, 0x2a, 0x1fff) / 2;
1588 bt->vsync = hdmi_read16(sd, 0x2e, 0x1fff) / 2;
1589 bt->vbackporch = hdmi_read16(sd, 0x32, 0x1fff) / 2;
1590 bt->polarities = ((hdmi_read(sd, 0x05) & 0x10) ? V4L2_DV_VSYNC_POS_POL : 0) |
1591 ((hdmi_read(sd, 0x05) & 0x20) ? V4L2_DV_HSYNC_POS_POL : 0);
1592 if (bt->interlaced == V4L2_DV_INTERLACED) {
1593 bt->height += hdmi_read16(sd, 0x0b, 0xfff);
1594 bt->il_vfrontporch = hdmi_read16(sd, 0x2c, 0x1fff) / 2;
1595 bt->il_vsync = hdmi_read16(sd, 0x30, 0x1fff) / 2;
1596 bt->vbackporch = hdmi_read16(sd, 0x34, 0x1fff) / 2;
1597 }
1598 adv7604_fill_optional_dv_timings_fields(sd, timings);
1599 } else {
1600 /* find format
1601 * Since LCVS values are inaccurate [REF_03, p. 275-276],
1602 * stdi2dv_timings() is called with lcvs +-1 if the first attempt fails.
1603 */
1604 if (!stdi2dv_timings(sd, &stdi, timings))
1605 goto found;
1606 stdi.lcvs += 1;
1607 v4l2_dbg(1, debug, sd, "%s: lcvs + 1 = %d\n", __func__, stdi.lcvs);
1608 if (!stdi2dv_timings(sd, &stdi, timings))
1609 goto found;
1610 stdi.lcvs -= 2;
1611 v4l2_dbg(1, debug, sd, "%s: lcvs - 1 = %d\n", __func__, stdi.lcvs);
1612 if (stdi2dv_timings(sd, &stdi, timings)) {
1613 /*
1614 * The STDI block may measure wrong values, especially
1615 * for lcvs and lcf. If the driver can not find any
1616 * valid timing, the STDI block is restarted to measure
1617 * the video timings again. The function will return an
1618 * error, but the restart of STDI will generate a new
1619 * STDI interrupt and the format detection process will
1620 * restart.
1621 */
1622 if (state->restart_stdi_once) {
1623 v4l2_dbg(1, debug, sd, "%s: restart STDI\n", __func__);
1624 /* TODO restart STDI for Sync Channel 2 */
1625 /* enter one-shot mode */
1626 cp_write_clr_set(sd, 0x86, 0x06, 0x00);
1627 /* trigger STDI restart */
1628 cp_write_clr_set(sd, 0x86, 0x06, 0x04);
1629 /* reset to continuous mode */
1630 cp_write_clr_set(sd, 0x86, 0x06, 0x02);
1631 state->restart_stdi_once = false;
1632 return -ENOLINK;
1633 }
1634 v4l2_dbg(1, debug, sd, "%s: format not supported\n", __func__);
1635 return -ERANGE;
1636 }
1637 state->restart_stdi_once = true;
1638 }
1639 found:
1640
1641 if (no_signal(sd)) {
1642 v4l2_dbg(1, debug, sd, "%s: signal lost during readout\n", __func__);
1643 memset(timings, 0, sizeof(struct v4l2_dv_timings));
1644 return -ENOLINK;
1645 }
1646
1647 if ((is_analog_input(sd) && bt->pixelclock > 170000000) ||
1648 (is_digital_input(sd) && bt->pixelclock > 225000000)) {
1649 v4l2_dbg(1, debug, sd, "%s: pixelclock out of range %d\n",
1650 __func__, (u32)bt->pixelclock);
1651 return -ERANGE;
1652 }
1653
1654 if (debug > 1)
1655 v4l2_print_dv_timings(sd->name, "adv7604_query_dv_timings: ",
1656 timings, true);
1657
1658 return 0;
1659 }
1660
1661 static int adv7604_s_dv_timings(struct v4l2_subdev *sd,
1662 struct v4l2_dv_timings *timings)
1663 {
1664 struct adv7604_state *state = to_state(sd);
1665 struct v4l2_bt_timings *bt;
1666 int err;
1667
1668 if (!timings)
1669 return -EINVAL;
1670
1671 if (v4l2_match_dv_timings(&state->timings, timings, 0)) {
1672 v4l2_dbg(1, debug, sd, "%s: no change\n", __func__);
1673 return 0;
1674 }
1675
1676 bt = &timings->bt;
1677
1678 if ((is_analog_input(sd) && bt->pixelclock > 170000000) ||
1679 (is_digital_input(sd) && bt->pixelclock > 225000000)) {
1680 v4l2_dbg(1, debug, sd, "%s: pixelclock out of range %d\n",
1681 __func__, (u32)bt->pixelclock);
1682 return -ERANGE;
1683 }
1684
1685 adv7604_fill_optional_dv_timings_fields(sd, timings);
1686
1687 state->timings = *timings;
1688
1689 cp_write_clr_set(sd, 0x91, 0x40, bt->interlaced ? 0x40 : 0x00);
1690
1691 /* Use prim_mode and vid_std when available */
1692 err = configure_predefined_video_timings(sd, timings);
1693 if (err) {
1694 /* custom settings when the video format
1695 does not have prim_mode/vid_std */
1696 configure_custom_video_timings(sd, bt);
1697 }
1698
1699 set_rgb_quantization_range(sd);
1700
1701 if (debug > 1)
1702 v4l2_print_dv_timings(sd->name, "adv7604_s_dv_timings: ",
1703 timings, true);
1704 return 0;
1705 }
1706
1707 static int adv7604_g_dv_timings(struct v4l2_subdev *sd,
1708 struct v4l2_dv_timings *timings)
1709 {
1710 struct adv7604_state *state = to_state(sd);
1711
1712 *timings = state->timings;
1713 return 0;
1714 }
1715
1716 static void adv7604_set_termination(struct v4l2_subdev *sd, bool enable)
1717 {
1718 hdmi_write(sd, 0x01, enable ? 0x00 : 0x78);
1719 }
1720
1721 static void adv7611_set_termination(struct v4l2_subdev *sd, bool enable)
1722 {
1723 hdmi_write(sd, 0x83, enable ? 0xfe : 0xff);
1724 }
1725
1726 static void enable_input(struct v4l2_subdev *sd)
1727 {
1728 struct adv7604_state *state = to_state(sd);
1729
1730 if (is_analog_input(sd)) {
1731 io_write(sd, 0x15, 0xb0); /* Disable Tristate of Pins (no audio) */
1732 } else if (is_digital_input(sd)) {
1733 hdmi_write_clr_set(sd, 0x00, 0x03, state->selected_input);
1734 state->info->set_termination(sd, true);
1735 io_write(sd, 0x15, 0xa0); /* Disable Tristate of Pins */
1736 hdmi_write_clr_set(sd, 0x1a, 0x10, 0x00); /* Unmute audio */
1737 } else {
1738 v4l2_dbg(2, debug, sd, "%s: Unknown port %d selected\n",
1739 __func__, state->selected_input);
1740 }
1741 }
1742
1743 static void disable_input(struct v4l2_subdev *sd)
1744 {
1745 struct adv7604_state *state = to_state(sd);
1746
1747 hdmi_write_clr_set(sd, 0x1a, 0x10, 0x10); /* Mute audio */
1748 msleep(16); /* 512 samples with >= 32 kHz sample rate [REF_03, c. 7.16.10] */
1749 io_write(sd, 0x15, 0xbe); /* Tristate all outputs from video core */
1750 state->info->set_termination(sd, false);
1751 }
1752
1753 static void select_input(struct v4l2_subdev *sd)
1754 {
1755 struct adv7604_state *state = to_state(sd);
1756 const struct adv7604_chip_info *info = state->info;
1757
1758 if (is_analog_input(sd)) {
1759 adv7604_write_reg_seq(sd, info->recommended_settings[0]);
1760
1761 afe_write(sd, 0x00, 0x08); /* power up ADC */
1762 afe_write(sd, 0x01, 0x06); /* power up Analog Front End */
1763 afe_write(sd, 0xc8, 0x00); /* phase control */
1764 } else if (is_digital_input(sd)) {
1765 hdmi_write(sd, 0x00, state->selected_input & 0x03);
1766
1767 adv7604_write_reg_seq(sd, info->recommended_settings[1]);
1768
1769 if (adv7604_has_afe(state)) {
1770 afe_write(sd, 0x00, 0xff); /* power down ADC */
1771 afe_write(sd, 0x01, 0xfe); /* power down Analog Front End */
1772 afe_write(sd, 0xc8, 0x40); /* phase control */
1773 }
1774
1775 cp_write(sd, 0x3e, 0x00); /* CP core pre-gain control */
1776 cp_write(sd, 0xc3, 0x39); /* CP coast control. Graphics mode */
1777 cp_write(sd, 0x40, 0x80); /* CP core pre-gain control. Graphics mode */
1778 } else {
1779 v4l2_dbg(2, debug, sd, "%s: Unknown port %d selected\n",
1780 __func__, state->selected_input);
1781 }
1782 }
1783
1784 static int adv7604_s_routing(struct v4l2_subdev *sd,
1785 u32 input, u32 output, u32 config)
1786 {
1787 struct adv7604_state *state = to_state(sd);
1788
1789 v4l2_dbg(2, debug, sd, "%s: input %d, selected input %d",
1790 __func__, input, state->selected_input);
1791
1792 if (input == state->selected_input)
1793 return 0;
1794
1795 if (input > state->info->max_port)
1796 return -EINVAL;
1797
1798 state->selected_input = input;
1799
1800 disable_input(sd);
1801
1802 select_input(sd);
1803
1804 enable_input(sd);
1805
1806 return 0;
1807 }
1808
1809 static int adv7604_enum_mbus_code(struct v4l2_subdev *sd,
1810 struct v4l2_subdev_fh *fh,
1811 struct v4l2_subdev_mbus_code_enum *code)
1812 {
1813 struct adv7604_state *state = to_state(sd);
1814
1815 if (code->index >= state->info->nformats)
1816 return -EINVAL;
1817
1818 code->code = state->info->formats[code->index].code;
1819
1820 return 0;
1821 }
1822
1823 static void adv7604_fill_format(struct adv7604_state *state,
1824 struct v4l2_mbus_framefmt *format)
1825 {
1826 memset(format, 0, sizeof(*format));
1827
1828 format->width = state->timings.bt.width;
1829 format->height = state->timings.bt.height;
1830 format->field = V4L2_FIELD_NONE;
1831
1832 if (state->timings.bt.standards & V4L2_DV_BT_STD_CEA861)
1833 format->colorspace = (state->timings.bt.height <= 576) ?
1834 V4L2_COLORSPACE_SMPTE170M : V4L2_COLORSPACE_REC709;
1835 }
1836
1837 /*
1838 * Compute the op_ch_sel value required to obtain on the bus the component order
1839 * corresponding to the selected format taking into account bus reordering
1840 * applied by the board at the output of the device.
1841 *
1842 * The following table gives the op_ch_value from the format component order
1843 * (expressed as op_ch_sel value in column) and the bus reordering (expressed as
1844 * adv7604_bus_order value in row).
1845 *
1846 * | GBR(0) GRB(1) BGR(2) RGB(3) BRG(4) RBG(5)
1847 * ----------+-------------------------------------------------
1848 * RGB (NOP) | GBR GRB BGR RGB BRG RBG
1849 * GRB (1-2) | BGR RGB GBR GRB RBG BRG
1850 * RBG (2-3) | GRB GBR BRG RBG BGR RGB
1851 * BGR (1-3) | RBG BRG RGB BGR GRB GBR
1852 * BRG (ROR) | BRG RBG GRB GBR RGB BGR
1853 * GBR (ROL) | RGB BGR RBG BRG GBR GRB
1854 */
1855 static unsigned int adv7604_op_ch_sel(struct adv7604_state *state)
1856 {
1857 #define _SEL(a,b,c,d,e,f) { \
1858 ADV7604_OP_CH_SEL_##a, ADV7604_OP_CH_SEL_##b, ADV7604_OP_CH_SEL_##c, \
1859 ADV7604_OP_CH_SEL_##d, ADV7604_OP_CH_SEL_##e, ADV7604_OP_CH_SEL_##f }
1860 #define _BUS(x) [ADV7604_BUS_ORDER_##x]
1861
1862 static const unsigned int op_ch_sel[6][6] = {
1863 _BUS(RGB) /* NOP */ = _SEL(GBR, GRB, BGR, RGB, BRG, RBG),
1864 _BUS(GRB) /* 1-2 */ = _SEL(BGR, RGB, GBR, GRB, RBG, BRG),
1865 _BUS(RBG) /* 2-3 */ = _SEL(GRB, GBR, BRG, RBG, BGR, RGB),
1866 _BUS(BGR) /* 1-3 */ = _SEL(RBG, BRG, RGB, BGR, GRB, GBR),
1867 _BUS(BRG) /* ROR */ = _SEL(BRG, RBG, GRB, GBR, RGB, BGR),
1868 _BUS(GBR) /* ROL */ = _SEL(RGB, BGR, RBG, BRG, GBR, GRB),
1869 };
1870
1871 return op_ch_sel[state->pdata.bus_order][state->format->op_ch_sel >> 5];
1872 }
1873
1874 static void adv7604_setup_format(struct adv7604_state *state)
1875 {
1876 struct v4l2_subdev *sd = &state->sd;
1877
1878 io_write_clr_set(sd, 0x02, 0x02,
1879 state->format->rgb_out ? ADV7604_RGB_OUT : 0);
1880 io_write(sd, 0x03, state->format->op_format_sel |
1881 state->pdata.op_format_mode_sel);
1882 io_write_clr_set(sd, 0x04, 0xe0, adv7604_op_ch_sel(state));
1883 io_write_clr_set(sd, 0x05, 0x01,
1884 state->format->swap_cb_cr ? ADV7604_OP_SWAP_CB_CR : 0);
1885 }
1886
1887 static int adv7604_get_format(struct v4l2_subdev *sd, struct v4l2_subdev_fh *fh,
1888 struct v4l2_subdev_format *format)
1889 {
1890 struct adv7604_state *state = to_state(sd);
1891
1892 if (format->pad != state->source_pad)
1893 return -EINVAL;
1894
1895 adv7604_fill_format(state, &format->format);
1896
1897 if (format->which == V4L2_SUBDEV_FORMAT_TRY) {
1898 struct v4l2_mbus_framefmt *fmt;
1899
1900 fmt = v4l2_subdev_get_try_format(fh, format->pad);
1901 format->format.code = fmt->code;
1902 } else {
1903 format->format.code = state->format->code;
1904 }
1905
1906 return 0;
1907 }
1908
1909 static int adv7604_set_format(struct v4l2_subdev *sd, struct v4l2_subdev_fh *fh,
1910 struct v4l2_subdev_format *format)
1911 {
1912 struct adv7604_state *state = to_state(sd);
1913 const struct adv7604_format_info *info;
1914
1915 if (format->pad != state->source_pad)
1916 return -EINVAL;
1917
1918 info = adv7604_format_info(state, format->format.code);
1919 if (info == NULL)
1920 info = adv7604_format_info(state, V4L2_MBUS_FMT_YUYV8_2X8);
1921
1922 adv7604_fill_format(state, &format->format);
1923 format->format.code = info->code;
1924
1925 if (format->which == V4L2_SUBDEV_FORMAT_TRY) {
1926 struct v4l2_mbus_framefmt *fmt;
1927
1928 fmt = v4l2_subdev_get_try_format(fh, format->pad);
1929 fmt->code = format->format.code;
1930 } else {
1931 state->format = info;
1932 adv7604_setup_format(state);
1933 }
1934
1935 return 0;
1936 }
1937
1938 static int adv7604_isr(struct v4l2_subdev *sd, u32 status, bool *handled)
1939 {
1940 struct adv7604_state *state = to_state(sd);
1941 const struct adv7604_chip_info *info = state->info;
1942 const u8 irq_reg_0x43 = io_read(sd, 0x43);
1943 const u8 irq_reg_0x6b = io_read(sd, 0x6b);
1944 const u8 irq_reg_0x70 = io_read(sd, 0x70);
1945 u8 fmt_change_digital;
1946 u8 fmt_change;
1947 u8 tx_5v;
1948
1949 if (irq_reg_0x43)
1950 io_write(sd, 0x44, irq_reg_0x43);
1951 if (irq_reg_0x70)
1952 io_write(sd, 0x71, irq_reg_0x70);
1953 if (irq_reg_0x6b)
1954 io_write(sd, 0x6c, irq_reg_0x6b);
1955
1956 v4l2_dbg(2, debug, sd, "%s: ", __func__);
1957
1958 /* format change */
1959 fmt_change = irq_reg_0x43 & 0x98;
1960 fmt_change_digital = is_digital_input(sd)
1961 ? irq_reg_0x6b & info->fmt_change_digital_mask
1962 : 0;
1963
1964 if (fmt_change || fmt_change_digital) {
1965 v4l2_dbg(1, debug, sd,
1966 "%s: fmt_change = 0x%x, fmt_change_digital = 0x%x\n",
1967 __func__, fmt_change, fmt_change_digital);
1968
1969 v4l2_subdev_notify(sd, ADV7604_FMT_CHANGE, NULL);
1970
1971 if (handled)
1972 *handled = true;
1973 }
1974 /* HDMI/DVI mode */
1975 if (irq_reg_0x6b & 0x01) {
1976 v4l2_dbg(1, debug, sd, "%s: irq %s mode\n", __func__,
1977 (io_read(sd, 0x6a) & 0x01) ? "HDMI" : "DVI");
1978 set_rgb_quantization_range(sd);
1979 if (handled)
1980 *handled = true;
1981 }
1982
1983 /* tx 5v detect */
1984 tx_5v = io_read(sd, 0x70) & info->cable_det_mask;
1985 if (tx_5v) {
1986 v4l2_dbg(1, debug, sd, "%s: tx_5v: 0x%x\n", __func__, tx_5v);
1987 io_write(sd, 0x71, tx_5v);
1988 adv7604_s_detect_tx_5v_ctrl(sd);
1989 if (handled)
1990 *handled = true;
1991 }
1992 return 0;
1993 }
1994
1995 static int adv7604_get_edid(struct v4l2_subdev *sd, struct v4l2_edid *edid)
1996 {
1997 struct adv7604_state *state = to_state(sd);
1998 u8 *data = NULL;
1999
2000 if (edid->pad > ADV7604_PAD_HDMI_PORT_D)
2001 return -EINVAL;
2002 if (edid->blocks == 0)
2003 return -EINVAL;
2004 if (edid->blocks > 2)
2005 return -EINVAL;
2006 if (edid->start_block > 1)
2007 return -EINVAL;
2008 if (edid->start_block == 1)
2009 edid->blocks = 1;
2010
2011 if (edid->blocks > state->edid.blocks)
2012 edid->blocks = state->edid.blocks;
2013
2014 switch (edid->pad) {
2015 case ADV7604_PAD_HDMI_PORT_A:
2016 case ADV7604_PAD_HDMI_PORT_B:
2017 case ADV7604_PAD_HDMI_PORT_C:
2018 case ADV7604_PAD_HDMI_PORT_D:
2019 if (state->edid.present & (1 << edid->pad))
2020 data = state->edid.edid;
2021 break;
2022 default:
2023 return -EINVAL;
2024 break;
2025 }
2026 if (!data)
2027 return -ENODATA;
2028
2029 memcpy(edid->edid,
2030 data + edid->start_block * 128,
2031 edid->blocks * 128);
2032 return 0;
2033 }
2034
2035 static int get_edid_spa_location(const u8 *edid)
2036 {
2037 u8 d;
2038
2039 if ((edid[0x7e] != 1) ||
2040 (edid[0x80] != 0x02) ||
2041 (edid[0x81] != 0x03)) {
2042 return -1;
2043 }
2044
2045 /* search Vendor Specific Data Block (tag 3) */
2046 d = edid[0x82] & 0x7f;
2047 if (d > 4) {
2048 int i = 0x84;
2049 int end = 0x80 + d;
2050
2051 do {
2052 u8 tag = edid[i] >> 5;
2053 u8 len = edid[i] & 0x1f;
2054
2055 if ((tag == 3) && (len >= 5))
2056 return i + 4;
2057 i += len + 1;
2058 } while (i < end);
2059 }
2060 return -1;
2061 }
2062
2063 static int adv7604_set_edid(struct v4l2_subdev *sd, struct v4l2_edid *edid)
2064 {
2065 struct adv7604_state *state = to_state(sd);
2066 const struct adv7604_chip_info *info = state->info;
2067 int spa_loc;
2068 int err;
2069 int i;
2070
2071 if (edid->pad > ADV7604_PAD_HDMI_PORT_D)
2072 return -EINVAL;
2073 if (edid->start_block != 0)
2074 return -EINVAL;
2075 if (edid->blocks == 0) {
2076 /* Disable hotplug and I2C access to EDID RAM from DDC port */
2077 state->edid.present &= ~(1 << edid->pad);
2078 adv7604_set_hpd(state, state->edid.present);
2079 rep_write_clr_set(sd, info->edid_enable_reg, 0x0f, state->edid.present);
2080
2081 /* Fall back to a 16:9 aspect ratio */
2082 state->aspect_ratio.numerator = 16;
2083 state->aspect_ratio.denominator = 9;
2084
2085 if (!state->edid.present)
2086 state->edid.blocks = 0;
2087
2088 v4l2_dbg(2, debug, sd, "%s: clear EDID pad %d, edid.present = 0x%x\n",
2089 __func__, edid->pad, state->edid.present);
2090 return 0;
2091 }
2092 if (edid->blocks > 2) {
2093 edid->blocks = 2;
2094 return -E2BIG;
2095 }
2096
2097 v4l2_dbg(2, debug, sd, "%s: write EDID pad %d, edid.present = 0x%x\n",
2098 __func__, edid->pad, state->edid.present);
2099
2100 /* Disable hotplug and I2C access to EDID RAM from DDC port */
2101 cancel_delayed_work_sync(&state->delayed_work_enable_hotplug);
2102 adv7604_set_hpd(state, 0);
2103 rep_write_clr_set(sd, info->edid_enable_reg, 0x0f, 0x00);
2104
2105 spa_loc = get_edid_spa_location(edid->edid);
2106 if (spa_loc < 0)
2107 spa_loc = 0xc0; /* Default value [REF_02, p. 116] */
2108
2109 switch (edid->pad) {
2110 case ADV7604_PAD_HDMI_PORT_A:
2111 state->spa_port_a[0] = edid->edid[spa_loc];
2112 state->spa_port_a[1] = edid->edid[spa_loc + 1];
2113 break;
2114 case ADV7604_PAD_HDMI_PORT_B:
2115 rep_write(sd, 0x70, edid->edid[spa_loc]);
2116 rep_write(sd, 0x71, edid->edid[spa_loc + 1]);
2117 break;
2118 case ADV7604_PAD_HDMI_PORT_C:
2119 rep_write(sd, 0x72, edid->edid[spa_loc]);
2120 rep_write(sd, 0x73, edid->edid[spa_loc + 1]);
2121 break;
2122 case ADV7604_PAD_HDMI_PORT_D:
2123 rep_write(sd, 0x74, edid->edid[spa_loc]);
2124 rep_write(sd, 0x75, edid->edid[spa_loc + 1]);
2125 break;
2126 default:
2127 return -EINVAL;
2128 }
2129
2130 if (info->type == ADV7604) {
2131 rep_write(sd, 0x76, spa_loc & 0xff);
2132 rep_write_clr_set(sd, 0x77, 0x40, (spa_loc & 0x100) >> 2);
2133 } else {
2134 /* FIXME: Where is the SPA location LSB register ? */
2135 rep_write_clr_set(sd, 0x71, 0x01, (spa_loc & 0x100) >> 8);
2136 }
2137
2138 edid->edid[spa_loc] = state->spa_port_a[0];
2139 edid->edid[spa_loc + 1] = state->spa_port_a[1];
2140
2141 memcpy(state->edid.edid, edid->edid, 128 * edid->blocks);
2142 state->edid.blocks = edid->blocks;
2143 state->aspect_ratio = v4l2_calc_aspect_ratio(edid->edid[0x15],
2144 edid->edid[0x16]);
2145 state->edid.present |= 1 << edid->pad;
2146
2147 err = edid_write_block(sd, 128 * edid->blocks, state->edid.edid);
2148 if (err < 0) {
2149 v4l2_err(sd, "error %d writing edid pad %d\n", err, edid->pad);
2150 return err;
2151 }
2152
2153 /* adv7604 calculates the checksums and enables I2C access to internal
2154 EDID RAM from DDC port. */
2155 rep_write_clr_set(sd, info->edid_enable_reg, 0x0f, state->edid.present);
2156
2157 for (i = 0; i < 1000; i++) {
2158 if (rep_read(sd, info->edid_status_reg) & state->edid.present)
2159 break;
2160 mdelay(1);
2161 }
2162 if (i == 1000) {
2163 v4l2_err(sd, "error enabling edid (0x%x)\n", state->edid.present);
2164 return -EIO;
2165 }
2166
2167
2168 /* enable hotplug after 100 ms */
2169 queue_delayed_work(state->work_queues,
2170 &state->delayed_work_enable_hotplug, HZ / 10);
2171 return 0;
2172 }
2173
2174 /*********** avi info frame CEA-861-E **************/
2175
2176 static void print_avi_infoframe(struct v4l2_subdev *sd)
2177 {
2178 int i;
2179 u8 buf[14];
2180 u8 avi_len;
2181 u8 avi_ver;
2182
2183 if (!is_hdmi(sd)) {
2184 v4l2_info(sd, "receive DVI-D signal (AVI infoframe not supported)\n");
2185 return;
2186 }
2187 if (!(io_read(sd, 0x60) & 0x01)) {
2188 v4l2_info(sd, "AVI infoframe not received\n");
2189 return;
2190 }
2191
2192 if (io_read(sd, 0x83) & 0x01) {
2193 v4l2_info(sd, "AVI infoframe checksum error has occurred earlier\n");
2194 io_write(sd, 0x85, 0x01); /* clear AVI_INF_CKS_ERR_RAW */
2195 if (io_read(sd, 0x83) & 0x01) {
2196 v4l2_info(sd, "AVI infoframe checksum error still present\n");
2197 io_write(sd, 0x85, 0x01); /* clear AVI_INF_CKS_ERR_RAW */
2198 }
2199 }
2200
2201 avi_len = infoframe_read(sd, 0xe2);
2202 avi_ver = infoframe_read(sd, 0xe1);
2203 v4l2_info(sd, "AVI infoframe version %d (%d byte)\n",
2204 avi_ver, avi_len);
2205
2206 if (avi_ver != 0x02)
2207 return;
2208
2209 for (i = 0; i < 14; i++)
2210 buf[i] = infoframe_read(sd, i);
2211
2212 v4l2_info(sd,
2213 "\t%02x %02x %02x %02x %02x %02x %02x %02x %02x %02x %02x %02x %02x %02x\n",
2214 buf[0], buf[1], buf[2], buf[3], buf[4], buf[5], buf[6], buf[7],
2215 buf[8], buf[9], buf[10], buf[11], buf[12], buf[13]);
2216 }
2217
2218 static int adv7604_log_status(struct v4l2_subdev *sd)
2219 {
2220 struct adv7604_state *state = to_state(sd);
2221 const struct adv7604_chip_info *info = state->info;
2222 struct v4l2_dv_timings timings;
2223 struct stdi_readback stdi;
2224 u8 reg_io_0x02 = io_read(sd, 0x02);
2225 u8 edid_enabled;
2226 u8 cable_det;
2227
2228 static const char * const csc_coeff_sel_rb[16] = {
2229 "bypassed", "YPbPr601 -> RGB", "reserved", "YPbPr709 -> RGB",
2230 "reserved", "RGB -> YPbPr601", "reserved", "RGB -> YPbPr709",
2231 "reserved", "YPbPr709 -> YPbPr601", "YPbPr601 -> YPbPr709",
2232 "reserved", "reserved", "reserved", "reserved", "manual"
2233 };
2234 static const char * const input_color_space_txt[16] = {
2235 "RGB limited range (16-235)", "RGB full range (0-255)",
2236 "YCbCr Bt.601 (16-235)", "YCbCr Bt.709 (16-235)",
2237 "xvYCC Bt.601", "xvYCC Bt.709",
2238 "YCbCr Bt.601 (0-255)", "YCbCr Bt.709 (0-255)",
2239 "invalid", "invalid", "invalid", "invalid", "invalid",
2240 "invalid", "invalid", "automatic"
2241 };
2242 static const char * const rgb_quantization_range_txt[] = {
2243 "Automatic",
2244 "RGB limited range (16-235)",
2245 "RGB full range (0-255)",
2246 };
2247 static const char * const deep_color_mode_txt[4] = {
2248 "8-bits per channel",
2249 "10-bits per channel",
2250 "12-bits per channel",
2251 "16-bits per channel (not supported)"
2252 };
2253
2254 v4l2_info(sd, "-----Chip status-----\n");
2255 v4l2_info(sd, "Chip power: %s\n", no_power(sd) ? "off" : "on");
2256 edid_enabled = rep_read(sd, info->edid_status_reg);
2257 v4l2_info(sd, "EDID enabled port A: %s, B: %s, C: %s, D: %s\n",
2258 ((edid_enabled & 0x01) ? "Yes" : "No"),
2259 ((edid_enabled & 0x02) ? "Yes" : "No"),
2260 ((edid_enabled & 0x04) ? "Yes" : "No"),
2261 ((edid_enabled & 0x08) ? "Yes" : "No"));
2262 v4l2_info(sd, "CEC: %s\n", !!(cec_read(sd, 0x2a) & 0x01) ?
2263 "enabled" : "disabled");
2264
2265 v4l2_info(sd, "-----Signal status-----\n");
2266 cable_det = info->read_cable_det(sd);
2267 v4l2_info(sd, "Cable detected (+5V power) port A: %s, B: %s, C: %s, D: %s\n",
2268 ((cable_det & 0x01) ? "Yes" : "No"),
2269 ((cable_det & 0x02) ? "Yes" : "No"),
2270 ((cable_det & 0x04) ? "Yes" : "No"),
2271 ((cable_det & 0x08) ? "Yes" : "No"));
2272 v4l2_info(sd, "TMDS signal detected: %s\n",
2273 no_signal_tmds(sd) ? "false" : "true");
2274 v4l2_info(sd, "TMDS signal locked: %s\n",
2275 no_lock_tmds(sd) ? "false" : "true");
2276 v4l2_info(sd, "SSPD locked: %s\n", no_lock_sspd(sd) ? "false" : "true");
2277 v4l2_info(sd, "STDI locked: %s\n", no_lock_stdi(sd) ? "false" : "true");
2278 v4l2_info(sd, "CP locked: %s\n", no_lock_cp(sd) ? "false" : "true");
2279 v4l2_info(sd, "CP free run: %s\n",
2280 (!!(cp_read(sd, 0xff) & 0x10) ? "on" : "off"));
2281 v4l2_info(sd, "Prim-mode = 0x%x, video std = 0x%x, v_freq = 0x%x\n",
2282 io_read(sd, 0x01) & 0x0f, io_read(sd, 0x00) & 0x3f,
2283 (io_read(sd, 0x01) & 0x70) >> 4);
2284
2285 v4l2_info(sd, "-----Video Timings-----\n");
2286 if (read_stdi(sd, &stdi))
2287 v4l2_info(sd, "STDI: not locked\n");
2288 else
2289 v4l2_info(sd, "STDI: lcf (frame height - 1) = %d, bl = %d, lcvs (vsync) = %d, %s, %chsync, %cvsync\n",
2290 stdi.lcf, stdi.bl, stdi.lcvs,
2291 stdi.interlaced ? "interlaced" : "progressive",
2292 stdi.hs_pol, stdi.vs_pol);
2293 if (adv7604_query_dv_timings(sd, &timings))
2294 v4l2_info(sd, "No video detected\n");
2295 else
2296 v4l2_print_dv_timings(sd->name, "Detected format: ",
2297 &timings, true);
2298 v4l2_print_dv_timings(sd->name, "Configured format: ",
2299 &state->timings, true);
2300
2301 if (no_signal(sd))
2302 return 0;
2303
2304 v4l2_info(sd, "-----Color space-----\n");
2305 v4l2_info(sd, "RGB quantization range ctrl: %s\n",
2306 rgb_quantization_range_txt[state->rgb_quantization_range]);
2307 v4l2_info(sd, "Input color space: %s\n",
2308 input_color_space_txt[reg_io_0x02 >> 4]);
2309 v4l2_info(sd, "Output color space: %s %s, saturator %s\n",
2310 (reg_io_0x02 & 0x02) ? "RGB" : "YCbCr",
2311 (reg_io_0x02 & 0x04) ? "(16-235)" : "(0-255)",
2312 ((reg_io_0x02 & 0x04) ^ (reg_io_0x02 & 0x01)) ?
2313 "enabled" : "disabled");
2314 v4l2_info(sd, "Color space conversion: %s\n",
2315 csc_coeff_sel_rb[cp_read(sd, 0xfc) >> 4]);
2316
2317 if (!is_digital_input(sd))
2318 return 0;
2319
2320 v4l2_info(sd, "-----%s status-----\n", is_hdmi(sd) ? "HDMI" : "DVI-D");
2321 v4l2_info(sd, "Digital video port selected: %c\n",
2322 (hdmi_read(sd, 0x00) & 0x03) + 'A');
2323 v4l2_info(sd, "HDCP encrypted content: %s\n",
2324 (hdmi_read(sd, 0x05) & 0x40) ? "true" : "false");
2325 v4l2_info(sd, "HDCP keys read: %s%s\n",
2326 (hdmi_read(sd, 0x04) & 0x20) ? "yes" : "no",
2327 (hdmi_read(sd, 0x04) & 0x10) ? "ERROR" : "");
2328 if (!is_hdmi(sd)) {
2329 bool audio_pll_locked = hdmi_read(sd, 0x04) & 0x01;
2330 bool audio_sample_packet_detect = hdmi_read(sd, 0x18) & 0x01;
2331 bool audio_mute = io_read(sd, 0x65) & 0x40;
2332
2333 v4l2_info(sd, "Audio: pll %s, samples %s, %s\n",
2334 audio_pll_locked ? "locked" : "not locked",
2335 audio_sample_packet_detect ? "detected" : "not detected",
2336 audio_mute ? "muted" : "enabled");
2337 if (audio_pll_locked && audio_sample_packet_detect) {
2338 v4l2_info(sd, "Audio format: %s\n",
2339 (hdmi_read(sd, 0x07) & 0x20) ? "multi-channel" : "stereo");
2340 }
2341 v4l2_info(sd, "Audio CTS: %u\n", (hdmi_read(sd, 0x5b) << 12) +
2342 (hdmi_read(sd, 0x5c) << 8) +
2343 (hdmi_read(sd, 0x5d) & 0xf0));
2344 v4l2_info(sd, "Audio N: %u\n", ((hdmi_read(sd, 0x5d) & 0x0f) << 16) +
2345 (hdmi_read(sd, 0x5e) << 8) +
2346 hdmi_read(sd, 0x5f));
2347 v4l2_info(sd, "AV Mute: %s\n", (hdmi_read(sd, 0x04) & 0x40) ? "on" : "off");
2348
2349 v4l2_info(sd, "Deep color mode: %s\n", deep_color_mode_txt[(hdmi_read(sd, 0x0b) & 0x60) >> 5]);
2350
2351 print_avi_infoframe(sd);
2352 }
2353
2354 return 0;
2355 }
2356
2357 /* ----------------------------------------------------------------------- */
2358
2359 static const struct v4l2_ctrl_ops adv7604_ctrl_ops = {
2360 .s_ctrl = adv7604_s_ctrl,
2361 };
2362
2363 static const struct v4l2_subdev_core_ops adv7604_core_ops = {
2364 .log_status = adv7604_log_status,
2365 .interrupt_service_routine = adv7604_isr,
2366 #ifdef CONFIG_VIDEO_ADV_DEBUG
2367 .g_register = adv7604_g_register,
2368 .s_register = adv7604_s_register,
2369 #endif
2370 };
2371
2372 static const struct v4l2_subdev_video_ops adv7604_video_ops = {
2373 .s_routing = adv7604_s_routing,
2374 .g_input_status = adv7604_g_input_status,
2375 .s_dv_timings = adv7604_s_dv_timings,
2376 .g_dv_timings = adv7604_g_dv_timings,
2377 .query_dv_timings = adv7604_query_dv_timings,
2378 };
2379
2380 static const struct v4l2_subdev_pad_ops adv7604_pad_ops = {
2381 .enum_mbus_code = adv7604_enum_mbus_code,
2382 .get_fmt = adv7604_get_format,
2383 .set_fmt = adv7604_set_format,
2384 .get_edid = adv7604_get_edid,
2385 .set_edid = adv7604_set_edid,
2386 .dv_timings_cap = adv7604_dv_timings_cap,
2387 .enum_dv_timings = adv7604_enum_dv_timings,
2388 };
2389
2390 static const struct v4l2_subdev_ops adv7604_ops = {
2391 .core = &adv7604_core_ops,
2392 .video = &adv7604_video_ops,
2393 .pad = &adv7604_pad_ops,
2394 };
2395
2396 /* -------------------------- custom ctrls ---------------------------------- */
2397
2398 static const struct v4l2_ctrl_config adv7604_ctrl_analog_sampling_phase = {
2399 .ops = &adv7604_ctrl_ops,
2400 .id = V4L2_CID_ADV_RX_ANALOG_SAMPLING_PHASE,
2401 .name = "Analog Sampling Phase",
2402 .type = V4L2_CTRL_TYPE_INTEGER,
2403 .min = 0,
2404 .max = 0x1f,
2405 .step = 1,
2406 .def = 0,
2407 };
2408
2409 static const struct v4l2_ctrl_config adv7604_ctrl_free_run_color_manual = {
2410 .ops = &adv7604_ctrl_ops,
2411 .id = V4L2_CID_ADV_RX_FREE_RUN_COLOR_MANUAL,
2412 .name = "Free Running Color, Manual",
2413 .type = V4L2_CTRL_TYPE_BOOLEAN,
2414 .min = false,
2415 .max = true,
2416 .step = 1,
2417 .def = false,
2418 };
2419
2420 static const struct v4l2_ctrl_config adv7604_ctrl_free_run_color = {
2421 .ops = &adv7604_ctrl_ops,
2422 .id = V4L2_CID_ADV_RX_FREE_RUN_COLOR,
2423 .name = "Free Running Color",
2424 .type = V4L2_CTRL_TYPE_INTEGER,
2425 .min = 0x0,
2426 .max = 0xffffff,
2427 .step = 0x1,
2428 .def = 0x0,
2429 };
2430
2431 /* ----------------------------------------------------------------------- */
2432
2433 static int adv7604_core_init(struct v4l2_subdev *sd)
2434 {
2435 struct adv7604_state *state = to_state(sd);
2436 const struct adv7604_chip_info *info = state->info;
2437 struct adv7604_platform_data *pdata = &state->pdata;
2438
2439 hdmi_write(sd, 0x48,
2440 (pdata->disable_pwrdnb ? 0x80 : 0) |
2441 (pdata->disable_cable_det_rst ? 0x40 : 0));
2442
2443 disable_input(sd);
2444
2445 if (pdata->default_input >= 0 &&
2446 pdata->default_input < state->source_pad) {
2447 state->selected_input = pdata->default_input;
2448 select_input(sd);
2449 enable_input(sd);
2450 }
2451
2452 /* power */
2453 io_write(sd, 0x0c, 0x42); /* Power up part and power down VDP */
2454 io_write(sd, 0x0b, 0x44); /* Power down ESDP block */
2455 cp_write(sd, 0xcf, 0x01); /* Power down macrovision */
2456
2457 /* video format */
2458 io_write_clr_set(sd, 0x02, 0x0f,
2459 pdata->alt_gamma << 3 |
2460 pdata->op_656_range << 2 |
2461 pdata->alt_data_sat << 0);
2462 io_write_clr_set(sd, 0x05, 0x0e, pdata->blank_data << 3 |
2463 pdata->insert_av_codes << 2 |
2464 pdata->replicate_av_codes << 1);
2465 adv7604_setup_format(state);
2466
2467 cp_write(sd, 0x69, 0x30); /* Enable CP CSC */
2468
2469 /* VS, HS polarities */
2470 io_write(sd, 0x06, 0xa0 | pdata->inv_vs_pol << 2 |
2471 pdata->inv_hs_pol << 1 | pdata->inv_llc_pol);
2472
2473 /* Adjust drive strength */
2474 io_write(sd, 0x14, 0x40 | pdata->dr_str_data << 4 |
2475 pdata->dr_str_clk << 2 |
2476 pdata->dr_str_sync);
2477
2478 cp_write(sd, 0xba, (pdata->hdmi_free_run_mode << 1) | 0x01); /* HDMI free run */
2479 cp_write(sd, 0xf3, 0xdc); /* Low threshold to enter/exit free run mode */
2480 cp_write(sd, 0xf9, 0x23); /* STDI ch. 1 - LCVS change threshold -
2481 ADI recommended setting [REF_01, c. 2.3.3] */
2482 cp_write(sd, 0x45, 0x23); /* STDI ch. 2 - LCVS change threshold -
2483 ADI recommended setting [REF_01, c. 2.3.3] */
2484 cp_write(sd, 0xc9, 0x2d); /* use prim_mode and vid_std as free run resolution
2485 for digital formats */
2486
2487 /* HDMI audio */
2488 hdmi_write_clr_set(sd, 0x15, 0x03, 0x03); /* Mute on FIFO over-/underflow [REF_01, c. 1.2.18] */
2489 hdmi_write_clr_set(sd, 0x1a, 0x0e, 0x08); /* Wait 1 s before unmute */
2490 hdmi_write_clr_set(sd, 0x68, 0x06, 0x06); /* FIFO reset on over-/underflow [REF_01, c. 1.2.19] */
2491
2492 /* TODO from platform data */
2493 afe_write(sd, 0xb5, 0x01); /* Setting MCLK to 256Fs */
2494
2495 if (adv7604_has_afe(state)) {
2496 afe_write(sd, 0x02, pdata->ain_sel); /* Select analog input muxing mode */
2497 io_write_clr_set(sd, 0x30, 1 << 4, pdata->output_bus_lsb_to_msb << 4);
2498 }
2499
2500 /* interrupts */
2501 io_write(sd, 0x40, 0xc0 | pdata->int1_config); /* Configure INT1 */
2502 io_write(sd, 0x46, 0x98); /* Enable SSPD, STDI and CP unlocked interrupts */
2503 io_write(sd, 0x6e, info->fmt_change_digital_mask); /* Enable V_LOCKED and DE_REGEN_LCK interrupts */
2504 io_write(sd, 0x73, info->cable_det_mask); /* Enable cable detection (+5v) interrupts */
2505 info->setup_irqs(sd);
2506
2507 return v4l2_ctrl_handler_setup(sd->ctrl_handler);
2508 }
2509
2510 static void adv7604_setup_irqs(struct v4l2_subdev *sd)
2511 {
2512 io_write(sd, 0x41, 0xd7); /* STDI irq for any change, disable INT2 */
2513 }
2514
2515 static void adv7611_setup_irqs(struct v4l2_subdev *sd)
2516 {
2517 io_write(sd, 0x41, 0xd0); /* STDI irq for any change, disable INT2 */
2518 }
2519
2520 static void adv7604_unregister_clients(struct adv7604_state *state)
2521 {
2522 unsigned int i;
2523
2524 for (i = 1; i < ARRAY_SIZE(state->i2c_clients); ++i) {
2525 if (state->i2c_clients[i])
2526 i2c_unregister_device(state->i2c_clients[i]);
2527 }
2528 }
2529
2530 static struct i2c_client *adv7604_dummy_client(struct v4l2_subdev *sd,
2531 u8 addr, u8 io_reg)
2532 {
2533 struct i2c_client *client = v4l2_get_subdevdata(sd);
2534
2535 if (addr)
2536 io_write(sd, io_reg, addr << 1);
2537 return i2c_new_dummy(client->adapter, io_read(sd, io_reg) >> 1);
2538 }
2539
2540 static const struct adv7604_reg_seq adv7604_recommended_settings_afe[] = {
2541 /* reset ADI recommended settings for HDMI: */
2542 /* "ADV7604 Register Settings Recommendations (rev. 2.5, June 2010)" p. 4. */
2543 { ADV7604_REG(ADV7604_PAGE_HDMI, 0x0d), 0x04 }, /* HDMI filter optimization */
2544 { ADV7604_REG(ADV7604_PAGE_HDMI, 0x0d), 0x04 }, /* HDMI filter optimization */
2545 { ADV7604_REG(ADV7604_PAGE_HDMI, 0x3d), 0x00 }, /* DDC bus active pull-up control */
2546 { ADV7604_REG(ADV7604_PAGE_HDMI, 0x3e), 0x74 }, /* TMDS PLL optimization */
2547 { ADV7604_REG(ADV7604_PAGE_HDMI, 0x4e), 0x3b }, /* TMDS PLL optimization */
2548 { ADV7604_REG(ADV7604_PAGE_HDMI, 0x57), 0x74 }, /* TMDS PLL optimization */
2549 { ADV7604_REG(ADV7604_PAGE_HDMI, 0x58), 0x63 }, /* TMDS PLL optimization */
2550 { ADV7604_REG(ADV7604_PAGE_HDMI, 0x8d), 0x18 }, /* equaliser */
2551 { ADV7604_REG(ADV7604_PAGE_HDMI, 0x8e), 0x34 }, /* equaliser */
2552 { ADV7604_REG(ADV7604_PAGE_HDMI, 0x93), 0x88 }, /* equaliser */
2553 { ADV7604_REG(ADV7604_PAGE_HDMI, 0x94), 0x2e }, /* equaliser */
2554 { ADV7604_REG(ADV7604_PAGE_HDMI, 0x96), 0x00 }, /* enable automatic EQ changing */
2555
2556 /* set ADI recommended settings for digitizer */
2557 /* "ADV7604 Register Settings Recommendations (rev. 2.5, June 2010)" p. 17. */
2558 { ADV7604_REG(ADV7604_PAGE_AFE, 0x12), 0x7b }, /* ADC noise shaping filter controls */
2559 { ADV7604_REG(ADV7604_PAGE_AFE, 0x0c), 0x1f }, /* CP core gain controls */
2560 { ADV7604_REG(ADV7604_PAGE_CP, 0x3e), 0x04 }, /* CP core pre-gain control */
2561 { ADV7604_REG(ADV7604_PAGE_CP, 0xc3), 0x39 }, /* CP coast control. Graphics mode */
2562 { ADV7604_REG(ADV7604_PAGE_CP, 0x40), 0x5c }, /* CP core pre-gain control. Graphics mode */
2563
2564 { ADV7604_REG_SEQ_TERM, 0 },
2565 };
2566
2567 static const struct adv7604_reg_seq adv7604_recommended_settings_hdmi[] = {
2568 /* set ADI recommended settings for HDMI: */
2569 /* "ADV7604 Register Settings Recommendations (rev. 2.5, June 2010)" p. 4. */
2570 { ADV7604_REG(ADV7604_PAGE_HDMI, 0x0d), 0x84 }, /* HDMI filter optimization */
2571 { ADV7604_REG(ADV7604_PAGE_HDMI, 0x3d), 0x10 }, /* DDC bus active pull-up control */
2572 { ADV7604_REG(ADV7604_PAGE_HDMI, 0x3e), 0x39 }, /* TMDS PLL optimization */
2573 { ADV7604_REG(ADV7604_PAGE_HDMI, 0x4e), 0x3b }, /* TMDS PLL optimization */
2574 { ADV7604_REG(ADV7604_PAGE_HDMI, 0x57), 0xb6 }, /* TMDS PLL optimization */
2575 { ADV7604_REG(ADV7604_PAGE_HDMI, 0x58), 0x03 }, /* TMDS PLL optimization */
2576 { ADV7604_REG(ADV7604_PAGE_HDMI, 0x8d), 0x18 }, /* equaliser */
2577 { ADV7604_REG(ADV7604_PAGE_HDMI, 0x8e), 0x34 }, /* equaliser */
2578 { ADV7604_REG(ADV7604_PAGE_HDMI, 0x93), 0x8b }, /* equaliser */
2579 { ADV7604_REG(ADV7604_PAGE_HDMI, 0x94), 0x2d }, /* equaliser */
2580 { ADV7604_REG(ADV7604_PAGE_HDMI, 0x96), 0x01 }, /* enable automatic EQ changing */
2581
2582 /* reset ADI recommended settings for digitizer */
2583 /* "ADV7604 Register Settings Recommendations (rev. 2.5, June 2010)" p. 17. */
2584 { ADV7604_REG(ADV7604_PAGE_AFE, 0x12), 0xfb }, /* ADC noise shaping filter controls */
2585 { ADV7604_REG(ADV7604_PAGE_AFE, 0x0c), 0x0d }, /* CP core gain controls */
2586
2587 { ADV7604_REG_SEQ_TERM, 0 },
2588 };
2589
2590 static const struct adv7604_reg_seq adv7611_recommended_settings_hdmi[] = {
2591 { ADV7604_REG(ADV7604_PAGE_CP, 0x6c), 0x00 },
2592 { ADV7604_REG(ADV7604_PAGE_HDMI, 0x6f), 0x0c },
2593 { ADV7604_REG(ADV7604_PAGE_HDMI, 0x87), 0x70 },
2594 { ADV7604_REG(ADV7604_PAGE_HDMI, 0x57), 0xda },
2595 { ADV7604_REG(ADV7604_PAGE_HDMI, 0x58), 0x01 },
2596 { ADV7604_REG(ADV7604_PAGE_HDMI, 0x03), 0x98 },
2597 { ADV7604_REG(ADV7604_PAGE_HDMI, 0x4c), 0x44 },
2598 { ADV7604_REG(ADV7604_PAGE_HDMI, 0x8d), 0x04 },
2599 { ADV7604_REG(ADV7604_PAGE_HDMI, 0x8e), 0x1e },
2600
2601 { ADV7604_REG_SEQ_TERM, 0 },
2602 };
2603
2604 static const struct adv7604_chip_info adv7604_chip_info[] = {
2605 [ADV7604] = {
2606 .type = ADV7604,
2607 .has_afe = true,
2608 .max_port = ADV7604_PAD_VGA_COMP,
2609 .num_dv_ports = 4,
2610 .edid_enable_reg = 0x77,
2611 .edid_status_reg = 0x7d,
2612 .lcf_reg = 0xb3,
2613 .tdms_lock_mask = 0xe0,
2614 .cable_det_mask = 0x1e,
2615 .fmt_change_digital_mask = 0xc1,
2616 .formats = adv7604_formats,
2617 .nformats = ARRAY_SIZE(adv7604_formats),
2618 .set_termination = adv7604_set_termination,
2619 .setup_irqs = adv7604_setup_irqs,
2620 .read_hdmi_pixelclock = adv7604_read_hdmi_pixelclock,
2621 .read_cable_det = adv7604_read_cable_det,
2622 .recommended_settings = {
2623 [0] = adv7604_recommended_settings_afe,
2624 [1] = adv7604_recommended_settings_hdmi,
2625 },
2626 .num_recommended_settings = {
2627 [0] = ARRAY_SIZE(adv7604_recommended_settings_afe),
2628 [1] = ARRAY_SIZE(adv7604_recommended_settings_hdmi),
2629 },
2630 .page_mask = BIT(ADV7604_PAGE_IO) | BIT(ADV7604_PAGE_AVLINK) |
2631 BIT(ADV7604_PAGE_CEC) | BIT(ADV7604_PAGE_INFOFRAME) |
2632 BIT(ADV7604_PAGE_ESDP) | BIT(ADV7604_PAGE_DPP) |
2633 BIT(ADV7604_PAGE_AFE) | BIT(ADV7604_PAGE_REP) |
2634 BIT(ADV7604_PAGE_EDID) | BIT(ADV7604_PAGE_HDMI) |
2635 BIT(ADV7604_PAGE_TEST) | BIT(ADV7604_PAGE_CP) |
2636 BIT(ADV7604_PAGE_VDP),
2637 },
2638 [ADV7611] = {
2639 .type = ADV7611,
2640 .has_afe = false,
2641 .max_port = ADV7604_PAD_HDMI_PORT_A,
2642 .num_dv_ports = 1,
2643 .edid_enable_reg = 0x74,
2644 .edid_status_reg = 0x76,
2645 .lcf_reg = 0xa3,
2646 .tdms_lock_mask = 0x43,
2647 .cable_det_mask = 0x01,
2648 .fmt_change_digital_mask = 0x03,
2649 .formats = adv7611_formats,
2650 .nformats = ARRAY_SIZE(adv7611_formats),
2651 .set_termination = adv7611_set_termination,
2652 .setup_irqs = adv7611_setup_irqs,
2653 .read_hdmi_pixelclock = adv7611_read_hdmi_pixelclock,
2654 .read_cable_det = adv7611_read_cable_det,
2655 .recommended_settings = {
2656 [1] = adv7611_recommended_settings_hdmi,
2657 },
2658 .num_recommended_settings = {
2659 [1] = ARRAY_SIZE(adv7611_recommended_settings_hdmi),
2660 },
2661 .page_mask = BIT(ADV7604_PAGE_IO) | BIT(ADV7604_PAGE_CEC) |
2662 BIT(ADV7604_PAGE_INFOFRAME) | BIT(ADV7604_PAGE_AFE) |
2663 BIT(ADV7604_PAGE_REP) | BIT(ADV7604_PAGE_EDID) |
2664 BIT(ADV7604_PAGE_HDMI) | BIT(ADV7604_PAGE_CP),
2665 },
2666 };
2667
2668 static struct i2c_device_id adv7604_i2c_id[] = {
2669 { "adv7604", (kernel_ulong_t)&adv7604_chip_info[ADV7604] },
2670 { "adv7611", (kernel_ulong_t)&adv7604_chip_info[ADV7611] },
2671 { }
2672 };
2673 MODULE_DEVICE_TABLE(i2c, adv7604_i2c_id);
2674
2675 static struct of_device_id adv7604_of_id[] __maybe_unused = {
2676 { .compatible = "adi,adv7611", .data = &adv7604_chip_info[ADV7611] },
2677 { }
2678 };
2679 MODULE_DEVICE_TABLE(of, adv7604_of_id);
2680
2681 static int adv7604_parse_dt(struct adv7604_state *state)
2682 {
2683 struct v4l2_of_endpoint bus_cfg;
2684 struct device_node *endpoint;
2685 struct device_node *np;
2686 unsigned int flags;
2687
2688 np = state->i2c_clients[ADV7604_PAGE_IO]->dev.of_node;
2689
2690 /* Parse the endpoint. */
2691 endpoint = of_graph_get_next_endpoint(np, NULL);
2692 if (!endpoint)
2693 return -EINVAL;
2694
2695 v4l2_of_parse_endpoint(endpoint, &bus_cfg);
2696 of_node_put(endpoint);
2697
2698 flags = bus_cfg.bus.parallel.flags;
2699
2700 if (flags & V4L2_MBUS_HSYNC_ACTIVE_HIGH)
2701 state->pdata.inv_hs_pol = 1;
2702
2703 if (flags & V4L2_MBUS_VSYNC_ACTIVE_HIGH)
2704 state->pdata.inv_vs_pol = 1;
2705
2706 if (flags & V4L2_MBUS_PCLK_SAMPLE_RISING)
2707 state->pdata.inv_llc_pol = 1;
2708
2709 if (bus_cfg.bus_type == V4L2_MBUS_BT656) {
2710 state->pdata.insert_av_codes = 1;
2711 state->pdata.op_656_range = 1;
2712 }
2713
2714 /* Disable the interrupt for now as no DT-based board uses it. */
2715 state->pdata.int1_config = ADV7604_INT1_CONFIG_DISABLED;
2716
2717 /* Use the default I2C addresses. */
2718 state->pdata.i2c_addresses[ADV7604_PAGE_AVLINK] = 0x42;
2719 state->pdata.i2c_addresses[ADV7604_PAGE_CEC] = 0x40;
2720 state->pdata.i2c_addresses[ADV7604_PAGE_INFOFRAME] = 0x3e;
2721 state->pdata.i2c_addresses[ADV7604_PAGE_ESDP] = 0x38;
2722 state->pdata.i2c_addresses[ADV7604_PAGE_DPP] = 0x3c;
2723 state->pdata.i2c_addresses[ADV7604_PAGE_AFE] = 0x26;
2724 state->pdata.i2c_addresses[ADV7604_PAGE_REP] = 0x32;
2725 state->pdata.i2c_addresses[ADV7604_PAGE_EDID] = 0x36;
2726 state->pdata.i2c_addresses[ADV7604_PAGE_HDMI] = 0x34;
2727 state->pdata.i2c_addresses[ADV7604_PAGE_TEST] = 0x30;
2728 state->pdata.i2c_addresses[ADV7604_PAGE_CP] = 0x22;
2729 state->pdata.i2c_addresses[ADV7604_PAGE_VDP] = 0x24;
2730
2731 /* Hardcode the remaining platform data fields. */
2732 state->pdata.disable_pwrdnb = 0;
2733 state->pdata.disable_cable_det_rst = 0;
2734 state->pdata.default_input = -1;
2735 state->pdata.blank_data = 1;
2736 state->pdata.alt_data_sat = 1;
2737 state->pdata.op_format_mode_sel = ADV7604_OP_FORMAT_MODE0;
2738 state->pdata.bus_order = ADV7604_BUS_ORDER_RGB;
2739
2740 return 0;
2741 }
2742
2743 static int adv7604_probe(struct i2c_client *client,
2744 const struct i2c_device_id *id)
2745 {
2746 static const struct v4l2_dv_timings cea640x480 =
2747 V4L2_DV_BT_CEA_640X480P59_94;
2748 struct adv7604_state *state;
2749 struct v4l2_ctrl_handler *hdl;
2750 struct v4l2_subdev *sd;
2751 unsigned int i;
2752 u16 val;
2753 int err;
2754
2755 /* Check if the adapter supports the needed features */
2756 if (!i2c_check_functionality(client->adapter, I2C_FUNC_SMBUS_BYTE_DATA))
2757 return -EIO;
2758 v4l_dbg(1, debug, client, "detecting adv7604 client on address 0x%x\n",
2759 client->addr << 1);
2760
2761 state = devm_kzalloc(&client->dev, sizeof(*state), GFP_KERNEL);
2762 if (!state) {
2763 v4l_err(client, "Could not allocate adv7604_state memory!\n");
2764 return -ENOMEM;
2765 }
2766
2767 state->i2c_clients[ADV7604_PAGE_IO] = client;
2768
2769 /* initialize variables */
2770 state->restart_stdi_once = true;
2771 state->selected_input = ~0;
2772
2773 if (IS_ENABLED(CONFIG_OF) && client->dev.of_node) {
2774 const struct of_device_id *oid;
2775
2776 oid = of_match_node(adv7604_of_id, client->dev.of_node);
2777 state->info = oid->data;
2778
2779 err = adv7604_parse_dt(state);
2780 if (err < 0) {
2781 v4l_err(client, "DT parsing error\n");
2782 return err;
2783 }
2784 } else if (client->dev.platform_data) {
2785 struct adv7604_platform_data *pdata = client->dev.platform_data;
2786
2787 state->info = (const struct adv7604_chip_info *)id->driver_data;
2788 state->pdata = *pdata;
2789 } else {
2790 v4l_err(client, "No platform data!\n");
2791 return -ENODEV;
2792 }
2793
2794 /* Request GPIOs. */
2795 for (i = 0; i < state->info->num_dv_ports; ++i) {
2796 state->hpd_gpio[i] =
2797 devm_gpiod_get_index(&client->dev, "hpd", i);
2798 if (IS_ERR(state->hpd_gpio[i]))
2799 continue;
2800
2801 gpiod_direction_output(state->hpd_gpio[i], 0);
2802
2803 v4l_info(client, "Handling HPD %u GPIO\n", i);
2804 }
2805
2806 state->timings = cea640x480;
2807 state->format = adv7604_format_info(state, V4L2_MBUS_FMT_YUYV8_2X8);
2808
2809 sd = &state->sd;
2810 v4l2_i2c_subdev_init(sd, client, &adv7604_ops);
2811 snprintf(sd->name, sizeof(sd->name), "%s %d-%04x",
2812 id->name, i2c_adapter_id(client->adapter),
2813 client->addr);
2814 sd->flags |= V4L2_SUBDEV_FL_HAS_DEVNODE;
2815
2816 /*
2817 * Verify that the chip is present. On ADV7604 the RD_INFO register only
2818 * identifies the revision, while on ADV7611 it identifies the model as
2819 * well. Use the HDMI slave address on ADV7604 and RD_INFO on ADV7611.
2820 */
2821 if (state->info->type == ADV7604) {
2822 val = adv_smbus_read_byte_data_check(client, 0xfb, false);
2823 if (val != 0x68) {
2824 v4l2_info(sd, "not an adv7604 on address 0x%x\n",
2825 client->addr << 1);
2826 return -ENODEV;
2827 }
2828 } else {
2829 val = (adv_smbus_read_byte_data_check(client, 0xea, false) << 8)
2830 | (adv_smbus_read_byte_data_check(client, 0xeb, false) << 0);
2831 if (val != 0x2051) {
2832 v4l2_info(sd, "not an adv7611 on address 0x%x\n",
2833 client->addr << 1);
2834 return -ENODEV;
2835 }
2836 }
2837
2838 /* control handlers */
2839 hdl = &state->hdl;
2840 v4l2_ctrl_handler_init(hdl, adv7604_has_afe(state) ? 9 : 8);
2841
2842 v4l2_ctrl_new_std(hdl, &adv7604_ctrl_ops,
2843 V4L2_CID_BRIGHTNESS, -128, 127, 1, 0);
2844 v4l2_ctrl_new_std(hdl, &adv7604_ctrl_ops,
2845 V4L2_CID_CONTRAST, 0, 255, 1, 128);
2846 v4l2_ctrl_new_std(hdl, &adv7604_ctrl_ops,
2847 V4L2_CID_SATURATION, 0, 255, 1, 128);
2848 v4l2_ctrl_new_std(hdl, &adv7604_ctrl_ops,
2849 V4L2_CID_HUE, 0, 128, 1, 0);
2850
2851 /* private controls */
2852 state->detect_tx_5v_ctrl = v4l2_ctrl_new_std(hdl, NULL,
2853 V4L2_CID_DV_RX_POWER_PRESENT, 0,
2854 (1 << state->info->num_dv_ports) - 1, 0, 0);
2855 state->rgb_quantization_range_ctrl =
2856 v4l2_ctrl_new_std_menu(hdl, &adv7604_ctrl_ops,
2857 V4L2_CID_DV_RX_RGB_RANGE, V4L2_DV_RGB_RANGE_FULL,
2858 0, V4L2_DV_RGB_RANGE_AUTO);
2859
2860 /* custom controls */
2861 if (adv7604_has_afe(state))
2862 state->analog_sampling_phase_ctrl =
2863 v4l2_ctrl_new_custom(hdl, &adv7604_ctrl_analog_sampling_phase, NULL);
2864 state->free_run_color_manual_ctrl =
2865 v4l2_ctrl_new_custom(hdl, &adv7604_ctrl_free_run_color_manual, NULL);
2866 state->free_run_color_ctrl =
2867 v4l2_ctrl_new_custom(hdl, &adv7604_ctrl_free_run_color, NULL);
2868
2869 sd->ctrl_handler = hdl;
2870 if (hdl->error) {
2871 err = hdl->error;
2872 goto err_hdl;
2873 }
2874 state->detect_tx_5v_ctrl->is_private = true;
2875 state->rgb_quantization_range_ctrl->is_private = true;
2876 if (adv7604_has_afe(state))
2877 state->analog_sampling_phase_ctrl->is_private = true;
2878 state->free_run_color_manual_ctrl->is_private = true;
2879 state->free_run_color_ctrl->is_private = true;
2880
2881 if (adv7604_s_detect_tx_5v_ctrl(sd)) {
2882 err = -ENODEV;
2883 goto err_hdl;
2884 }
2885
2886 for (i = 1; i < ADV7604_PAGE_MAX; ++i) {
2887 if (!(BIT(i) & state->info->page_mask))
2888 continue;
2889
2890 state->i2c_clients[i] =
2891 adv7604_dummy_client(sd, state->pdata.i2c_addresses[i],
2892 0xf2 + i);
2893 if (state->i2c_clients[i] == NULL) {
2894 err = -ENOMEM;
2895 v4l2_err(sd, "failed to create i2c client %u\n", i);
2896 goto err_i2c;
2897 }
2898 }
2899
2900 /* work queues */
2901 state->work_queues = create_singlethread_workqueue(client->name);
2902 if (!state->work_queues) {
2903 v4l2_err(sd, "Could not create work queue\n");
2904 err = -ENOMEM;
2905 goto err_i2c;
2906 }
2907
2908 INIT_DELAYED_WORK(&state->delayed_work_enable_hotplug,
2909 adv7604_delayed_work_enable_hotplug);
2910
2911 state->source_pad = state->info->num_dv_ports
2912 + (state->info->has_afe ? 2 : 0);
2913 for (i = 0; i < state->source_pad; ++i)
2914 state->pads[i].flags = MEDIA_PAD_FL_SINK;
2915 state->pads[state->source_pad].flags = MEDIA_PAD_FL_SOURCE;
2916
2917 err = media_entity_init(&sd->entity, state->source_pad + 1,
2918 state->pads, 0);
2919 if (err)
2920 goto err_work_queues;
2921
2922 err = adv7604_core_init(sd);
2923 if (err)
2924 goto err_entity;
2925 v4l2_info(sd, "%s found @ 0x%x (%s)\n", client->name,
2926 client->addr << 1, client->adapter->name);
2927
2928 err = v4l2_async_register_subdev(sd);
2929 if (err)
2930 goto err_entity;
2931
2932 return 0;
2933
2934 err_entity:
2935 media_entity_cleanup(&sd->entity);
2936 err_work_queues:
2937 cancel_delayed_work(&state->delayed_work_enable_hotplug);
2938 destroy_workqueue(state->work_queues);
2939 err_i2c:
2940 adv7604_unregister_clients(state);
2941 err_hdl:
2942 v4l2_ctrl_handler_free(hdl);
2943 return err;
2944 }
2945
2946 /* ----------------------------------------------------------------------- */
2947
2948 static int adv7604_remove(struct i2c_client *client)
2949 {
2950 struct v4l2_subdev *sd = i2c_get_clientdata(client);
2951 struct adv7604_state *state = to_state(sd);
2952
2953 cancel_delayed_work(&state->delayed_work_enable_hotplug);
2954 destroy_workqueue(state->work_queues);
2955 v4l2_async_unregister_subdev(sd);
2956 v4l2_device_unregister_subdev(sd);
2957 media_entity_cleanup(&sd->entity);
2958 adv7604_unregister_clients(to_state(sd));
2959 v4l2_ctrl_handler_free(sd->ctrl_handler);
2960 return 0;
2961 }
2962
2963 /* ----------------------------------------------------------------------- */
2964
2965 static struct i2c_driver adv7604_driver = {
2966 .driver = {
2967 .owner = THIS_MODULE,
2968 .name = "adv7604",
2969 .of_match_table = of_match_ptr(adv7604_of_id),
2970 },
2971 .probe = adv7604_probe,
2972 .remove = adv7604_remove,
2973 .id_table = adv7604_i2c_id,
2974 };
2975
2976 module_i2c_driver(adv7604_driver);
Linux with added FPC-III support