2 * Analog Devices ADV7511 HDMI Transmitter Device Driver
4 * Copyright 2013 Cisco Systems, Inc. and/or its affiliates. All rights reserved.
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.
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
21 #include <linux/kernel.h>
22 #include <linux/module.h>
23 #include <linux/slab.h>
24 #include <linux/i2c.h>
25 #include <linux/delay.h>
26 #include <linux/videodev2.h>
27 #include <linux/gpio.h>
28 #include <linux/workqueue.h>
29 #include <linux/hdmi.h>
30 #include <linux/v4l2-dv-timings.h>
31 #include <media/v4l2-device.h>
32 #include <media/v4l2-common.h>
33 #include <media/v4l2-ctrls.h>
34 #include <media/v4l2-dv-timings.h>
35 #include <media/adv7511.h>
38 module_param(debug, int, 0644);
39 MODULE_PARM_DESC(debug, "debug level (0-2)");
41 MODULE_DESCRIPTION("Analog Devices ADV7511 HDMI Transmitter Device Driver");
42 MODULE_AUTHOR("Hans Verkuil");
43 MODULE_LICENSE("GPL");
45 #define MASK_ADV7511_EDID_RDY_INT 0x04
46 #define MASK_ADV7511_MSEN_INT 0x40
47 #define MASK_ADV7511_HPD_INT 0x80
49 #define MASK_ADV7511_HPD_DETECT 0x40
50 #define MASK_ADV7511_MSEN_DETECT 0x20
51 #define MASK_ADV7511_EDID_RDY 0x10
53 #define EDID_MAX_RETRIES (8)
54 #define EDID_DELAY 250
55 #define EDID_MAX_SEGM 8
57 #define ADV7511_MAX_WIDTH 1920
58 #define ADV7511_MAX_HEIGHT 1200
59 #define ADV7511_MIN_PIXELCLOCK 20000000
60 #define ADV7511_MAX_PIXELCLOCK 225000000
63 **********************************************************************
65 * Arrays with configuration parameters for the ADV7511
67 **********************************************************************
70 struct i2c_reg_value {
75 struct adv7511_state_edid {
76 /* total number of blocks */
78 /* Number of segments read */
80 uint8_t data[EDID_MAX_SEGM * 256];
81 /* Number of EDID read retries left */
82 unsigned read_retries;
86 struct adv7511_state {
87 struct adv7511_platform_data pdata;
88 struct v4l2_subdev sd;
90 struct v4l2_ctrl_handler hdl;
92 uint8_t i2c_edid_addr;
94 /* Is the adv7511 powered on? */
96 /* Did we receive hotplug and rx-sense signals? */
98 /* timings from s_dv_timings */
99 struct v4l2_dv_timings dv_timings;
105 struct v4l2_ctrl *hdmi_mode_ctrl;
106 struct v4l2_ctrl *hotplug_ctrl;
107 struct v4l2_ctrl *rx_sense_ctrl;
108 struct v4l2_ctrl *have_edid0_ctrl;
109 struct v4l2_ctrl *rgb_quantization_range_ctrl;
110 struct i2c_client *i2c_edid;
111 struct adv7511_state_edid edid;
112 /* Running counter of the number of detected EDIDs (for debugging) */
113 unsigned edid_detect_counter;
114 struct workqueue_struct *work_queue;
115 struct delayed_work edid_handler; /* work entry */
118 static void adv7511_check_monitor_present_status(struct v4l2_subdev *sd);
119 static bool adv7511_check_edid_status(struct v4l2_subdev *sd);
120 static void adv7511_setup(struct v4l2_subdev *sd);
121 static int adv7511_s_i2s_clock_freq(struct v4l2_subdev *sd, u32 freq);
122 static int adv7511_s_clock_freq(struct v4l2_subdev *sd, u32 freq);
125 static const struct v4l2_dv_timings_cap adv7511_timings_cap = {
126 .type = V4L2_DV_BT_656_1120,
127 /* keep this initialization for compatibility with GCC < 4.4.6 */
129 V4L2_INIT_BT_TIMINGS(0, ADV7511_MAX_WIDTH, 0, ADV7511_MAX_HEIGHT,
130 ADV7511_MIN_PIXELCLOCK, ADV7511_MAX_PIXELCLOCK,
131 V4L2_DV_BT_STD_CEA861 | V4L2_DV_BT_STD_DMT |
132 V4L2_DV_BT_STD_GTF | V4L2_DV_BT_STD_CVT,
133 V4L2_DV_BT_CAP_PROGRESSIVE | V4L2_DV_BT_CAP_REDUCED_BLANKING |
134 V4L2_DV_BT_CAP_CUSTOM)
137 static inline struct adv7511_state *get_adv7511_state(struct v4l2_subdev *sd)
139 return container_of(sd, struct adv7511_state, sd);
142 static inline struct v4l2_subdev *to_sd(struct v4l2_ctrl *ctrl)
144 return &container_of(ctrl->handler, struct adv7511_state, hdl)->sd;
147 /* ------------------------ I2C ----------------------------------------------- */
149 static s32 adv_smbus_read_byte_data_check(struct i2c_client *client,
150 u8 command, bool check)
152 union i2c_smbus_data data;
154 if (!i2c_smbus_xfer(client->adapter, client->addr, client->flags,
155 I2C_SMBUS_READ, command,
156 I2C_SMBUS_BYTE_DATA, &data))
159 v4l_err(client, "error reading %02x, %02x\n",
160 client->addr, command);
164 static s32 adv_smbus_read_byte_data(struct i2c_client *client, u8 command)
167 for (i = 0; i < 3; i++) {
168 int ret = adv_smbus_read_byte_data_check(client, command, true);
171 v4l_err(client, "read ok after %d retries\n", i);
175 v4l_err(client, "read failed\n");
179 static int adv7511_rd(struct v4l2_subdev *sd, u8 reg)
181 struct i2c_client *client = v4l2_get_subdevdata(sd);
183 return adv_smbus_read_byte_data(client, reg);
186 static int adv7511_wr(struct v4l2_subdev *sd, u8 reg, u8 val)
188 struct i2c_client *client = v4l2_get_subdevdata(sd);
192 for (i = 0; i < 3; i++) {
193 ret = i2c_smbus_write_byte_data(client, reg, val);
197 v4l2_err(sd, "%s: i2c write error\n", __func__);
201 /* To set specific bits in the register, a clear-mask is given (to be AND-ed),
202 and then the value-mask (to be OR-ed). */
203 static inline void adv7511_wr_and_or(struct v4l2_subdev *sd, u8 reg, uint8_t clr_mask, uint8_t val_mask)
205 adv7511_wr(sd, reg, (adv7511_rd(sd, reg) & clr_mask) | val_mask);
208 static int adv_smbus_read_i2c_block_data(struct i2c_client *client,
209 u8 command, unsigned length, u8 *values)
211 union i2c_smbus_data data;
214 if (length > I2C_SMBUS_BLOCK_MAX)
215 length = I2C_SMBUS_BLOCK_MAX;
216 data.block[0] = length;
218 ret = i2c_smbus_xfer(client->adapter, client->addr, client->flags,
219 I2C_SMBUS_READ, command,
220 I2C_SMBUS_I2C_BLOCK_DATA, &data);
221 memcpy(values, data.block + 1, length);
225 static inline void adv7511_edid_rd(struct v4l2_subdev *sd, uint16_t len, uint8_t *buf)
227 struct adv7511_state *state = get_adv7511_state(sd);
231 v4l2_dbg(1, debug, sd, "%s:\n", __func__);
233 for (i = 0; !err && i < len; i += I2C_SMBUS_BLOCK_MAX)
234 err = adv_smbus_read_i2c_block_data(state->i2c_edid, i,
235 I2C_SMBUS_BLOCK_MAX, buf + i);
237 v4l2_err(sd, "%s: i2c read error\n", __func__);
240 static inline bool adv7511_have_hotplug(struct v4l2_subdev *sd)
242 return adv7511_rd(sd, 0x42) & MASK_ADV7511_HPD_DETECT;
245 static inline bool adv7511_have_rx_sense(struct v4l2_subdev *sd)
247 return adv7511_rd(sd, 0x42) & MASK_ADV7511_MSEN_DETECT;
250 static void adv7511_csc_conversion_mode(struct v4l2_subdev *sd, uint8_t mode)
252 adv7511_wr_and_or(sd, 0x18, 0x9f, (mode & 0x3)<<5);
255 static void adv7511_csc_coeff(struct v4l2_subdev *sd,
256 u16 A1, u16 A2, u16 A3, u16 A4,
257 u16 B1, u16 B2, u16 B3, u16 B4,
258 u16 C1, u16 C2, u16 C3, u16 C4)
261 adv7511_wr_and_or(sd, 0x18, 0xe0, A1>>8);
262 adv7511_wr(sd, 0x19, A1);
263 adv7511_wr_and_or(sd, 0x1A, 0xe0, A2>>8);
264 adv7511_wr(sd, 0x1B, A2);
265 adv7511_wr_and_or(sd, 0x1c, 0xe0, A3>>8);
266 adv7511_wr(sd, 0x1d, A3);
267 adv7511_wr_and_or(sd, 0x1e, 0xe0, A4>>8);
268 adv7511_wr(sd, 0x1f, A4);
271 adv7511_wr_and_or(sd, 0x20, 0xe0, B1>>8);
272 adv7511_wr(sd, 0x21, B1);
273 adv7511_wr_and_or(sd, 0x22, 0xe0, B2>>8);
274 adv7511_wr(sd, 0x23, B2);
275 adv7511_wr_and_or(sd, 0x24, 0xe0, B3>>8);
276 adv7511_wr(sd, 0x25, B3);
277 adv7511_wr_and_or(sd, 0x26, 0xe0, B4>>8);
278 adv7511_wr(sd, 0x27, B4);
281 adv7511_wr_and_or(sd, 0x28, 0xe0, C1>>8);
282 adv7511_wr(sd, 0x29, C1);
283 adv7511_wr_and_or(sd, 0x2A, 0xe0, C2>>8);
284 adv7511_wr(sd, 0x2B, C2);
285 adv7511_wr_and_or(sd, 0x2C, 0xe0, C3>>8);
286 adv7511_wr(sd, 0x2D, C3);
287 adv7511_wr_and_or(sd, 0x2E, 0xe0, C4>>8);
288 adv7511_wr(sd, 0x2F, C4);
291 static void adv7511_csc_rgb_full2limit(struct v4l2_subdev *sd, bool enable)
294 uint8_t csc_mode = 0;
295 adv7511_csc_conversion_mode(sd, csc_mode);
296 adv7511_csc_coeff(sd,
299 0, 0, 4096-564, 256);
301 adv7511_wr_and_or(sd, 0x18, 0x7f, 0x80);
302 /* AVI infoframe: Limited range RGB (16-235) */
303 adv7511_wr_and_or(sd, 0x57, 0xf3, 0x04);
306 adv7511_wr_and_or(sd, 0x18, 0x7f, 0x0);
307 /* AVI infoframe: Full range RGB (0-255) */
308 adv7511_wr_and_or(sd, 0x57, 0xf3, 0x08);
312 static void adv7511_set_IT_content_AVI_InfoFrame(struct v4l2_subdev *sd)
314 struct adv7511_state *state = get_adv7511_state(sd);
315 if (state->dv_timings.bt.standards & V4L2_DV_BT_STD_CEA861) {
316 /* CEA format, not IT */
317 adv7511_wr_and_or(sd, 0x57, 0x7f, 0x00);
320 adv7511_wr_and_or(sd, 0x57, 0x7f, 0x80);
324 static int adv7511_set_rgb_quantization_mode(struct v4l2_subdev *sd, struct v4l2_ctrl *ctrl)
330 case V4L2_DV_RGB_RANGE_AUTO: {
332 struct adv7511_state *state = get_adv7511_state(sd);
334 if (state->dv_timings.bt.standards & V4L2_DV_BT_STD_CEA861) {
335 /* cea format, RGB limited range (16-235) */
336 adv7511_csc_rgb_full2limit(sd, true);
338 /* not cea format, RGB full range (0-255) */
339 adv7511_csc_rgb_full2limit(sd, false);
343 case V4L2_DV_RGB_RANGE_LIMITED:
344 /* RGB limited range (16-235) */
345 adv7511_csc_rgb_full2limit(sd, true);
347 case V4L2_DV_RGB_RANGE_FULL:
348 /* RGB full range (0-255) */
349 adv7511_csc_rgb_full2limit(sd, false);
355 /* ------------------------------ CTRL OPS ------------------------------ */
357 static int adv7511_s_ctrl(struct v4l2_ctrl *ctrl)
359 struct v4l2_subdev *sd = to_sd(ctrl);
360 struct adv7511_state *state = get_adv7511_state(sd);
362 v4l2_dbg(1, debug, sd, "%s: ctrl id: %d, ctrl->val %d\n", __func__, ctrl->id, ctrl->val);
364 if (state->hdmi_mode_ctrl == ctrl) {
365 /* Set HDMI or DVI-D */
366 adv7511_wr_and_or(sd, 0xaf, 0xfd, ctrl->val == V4L2_DV_TX_MODE_HDMI ? 0x02 : 0x00);
369 if (state->rgb_quantization_range_ctrl == ctrl)
370 return adv7511_set_rgb_quantization_mode(sd, ctrl);
375 static const struct v4l2_ctrl_ops adv7511_ctrl_ops = {
376 .s_ctrl = adv7511_s_ctrl,
379 /* ---------------------------- CORE OPS ------------------------------------------- */
381 #ifdef CONFIG_VIDEO_ADV_DEBUG
382 static void adv7511_inv_register(struct v4l2_subdev *sd)
384 v4l2_info(sd, "0x000-0x0ff: Main Map\n");
387 static int adv7511_g_register(struct v4l2_subdev *sd, struct v4l2_dbg_register *reg)
390 switch (reg->reg >> 8) {
392 reg->val = adv7511_rd(sd, reg->reg & 0xff);
395 v4l2_info(sd, "Register %03llx not supported\n", reg->reg);
396 adv7511_inv_register(sd);
402 static int adv7511_s_register(struct v4l2_subdev *sd, const struct v4l2_dbg_register *reg)
404 switch (reg->reg >> 8) {
406 adv7511_wr(sd, reg->reg & 0xff, reg->val & 0xff);
409 v4l2_info(sd, "Register %03llx not supported\n", reg->reg);
410 adv7511_inv_register(sd);
417 static int adv7511_log_status(struct v4l2_subdev *sd)
419 struct adv7511_state *state = get_adv7511_state(sd);
420 struct adv7511_state_edid *edid = &state->edid;
422 static const char * const states[] = {
428 "initializing HDCP repeater",
429 "6", "7", "8", "9", "A", "B", "C", "D", "E", "F"
431 static const char * const errors[] = {
438 "max repeater cascade exceeded",
441 "9", "A", "B", "C", "D", "E", "F"
444 v4l2_info(sd, "power %s\n", state->power_on ? "on" : "off");
445 v4l2_info(sd, "%s hotplug, %s Rx Sense, %s EDID (%d block(s))\n",
446 (adv7511_rd(sd, 0x42) & MASK_ADV7511_HPD_DETECT) ? "detected" : "no",
447 (adv7511_rd(sd, 0x42) & MASK_ADV7511_MSEN_DETECT) ? "detected" : "no",
448 edid->segments ? "found" : "no",
450 v4l2_info(sd, "%s output %s\n",
451 (adv7511_rd(sd, 0xaf) & 0x02) ?
453 (adv7511_rd(sd, 0xa1) & 0x3c) ?
454 "disabled" : "enabled");
455 v4l2_info(sd, "state: %s, error: %s, detect count: %u, msk/irq: %02x/%02x\n",
456 states[adv7511_rd(sd, 0xc8) & 0xf],
457 errors[adv7511_rd(sd, 0xc8) >> 4], state->edid_detect_counter,
458 adv7511_rd(sd, 0x94), adv7511_rd(sd, 0x96));
459 v4l2_info(sd, "RGB quantization: %s range\n", adv7511_rd(sd, 0x18) & 0x80 ? "limited" : "full");
460 if (adv7511_rd(sd, 0xaf) & 0x02) {
462 u8 manual_cts = adv7511_rd(sd, 0x0a) & 0x80;
463 u32 N = (adv7511_rd(sd, 0x01) & 0xf) << 16 |
464 adv7511_rd(sd, 0x02) << 8 |
465 adv7511_rd(sd, 0x03);
466 u8 vic_detect = adv7511_rd(sd, 0x3e) >> 2;
467 u8 vic_sent = adv7511_rd(sd, 0x3d) & 0x3f;
471 CTS = (adv7511_rd(sd, 0x07) & 0xf) << 16 |
472 adv7511_rd(sd, 0x08) << 8 |
473 adv7511_rd(sd, 0x09);
475 CTS = (adv7511_rd(sd, 0x04) & 0xf) << 16 |
476 adv7511_rd(sd, 0x05) << 8 |
477 adv7511_rd(sd, 0x06);
478 v4l2_info(sd, "CTS %s mode: N %d, CTS %d\n",
479 manual_cts ? "manual" : "automatic", N, CTS);
480 v4l2_info(sd, "VIC: detected %d, sent %d\n",
481 vic_detect, vic_sent);
483 if (state->dv_timings.type == V4L2_DV_BT_656_1120)
484 v4l2_print_dv_timings(sd->name, "timings: ",
485 &state->dv_timings, false);
487 v4l2_info(sd, "no timings set\n");
488 v4l2_info(sd, "i2c edid addr: 0x%x\n", state->i2c_edid_addr);
489 v4l2_info(sd, "i2c cec addr: 0x%x\n", state->i2c_cec_addr);
493 /* Power up/down adv7511 */
494 static int adv7511_s_power(struct v4l2_subdev *sd, int on)
496 struct adv7511_state *state = get_adv7511_state(sd);
497 const int retries = 20;
500 v4l2_dbg(1, debug, sd, "%s: power %s\n", __func__, on ? "on" : "off");
502 state->power_on = on;
506 adv7511_wr_and_or(sd, 0x41, 0xbf, 0x40);
511 /* The adv7511 does not always come up immediately.
512 Retry multiple times. */
513 for (i = 0; i < retries; i++) {
514 adv7511_wr_and_or(sd, 0x41, 0xbf, 0x0);
515 if ((adv7511_rd(sd, 0x41) & 0x40) == 0)
517 adv7511_wr_and_or(sd, 0x41, 0xbf, 0x40);
521 v4l2_dbg(1, debug, sd, "%s: failed to powerup the adv7511!\n", __func__);
522 adv7511_s_power(sd, 0);
526 v4l2_dbg(1, debug, sd, "%s: needed %d retries to powerup the adv7511\n", __func__, i);
528 /* Reserved registers that must be set */
529 adv7511_wr(sd, 0x98, 0x03);
530 adv7511_wr_and_or(sd, 0x9a, 0xfe, 0x70);
531 adv7511_wr(sd, 0x9c, 0x30);
532 adv7511_wr_and_or(sd, 0x9d, 0xfc, 0x01);
533 adv7511_wr(sd, 0xa2, 0xa4);
534 adv7511_wr(sd, 0xa3, 0xa4);
535 adv7511_wr(sd, 0xe0, 0xd0);
536 adv7511_wr(sd, 0xf9, 0x00);
538 adv7511_wr(sd, 0x43, state->i2c_edid_addr);
540 /* Set number of attempts to read the EDID */
541 adv7511_wr(sd, 0xc9, 0xf);
545 /* Enable interrupts */
546 static void adv7511_set_isr(struct v4l2_subdev *sd, bool enable)
548 uint8_t irqs = MASK_ADV7511_HPD_INT | MASK_ADV7511_MSEN_INT;
552 v4l2_dbg(2, debug, sd, "%s: %s\n", __func__, enable ? "enable" : "disable");
554 /* The datasheet says that the EDID ready interrupt should be
555 disabled if there is no hotplug. */
558 else if (adv7511_have_hotplug(sd))
559 irqs |= MASK_ADV7511_EDID_RDY_INT;
562 * This i2c write can fail (approx. 1 in 1000 writes). But it
563 * is essential that this register is correct, so retry it
566 * Note that the i2c write does not report an error, but the readback
567 * clearly shows the wrong value.
570 adv7511_wr(sd, 0x94, irqs);
571 irqs_rd = adv7511_rd(sd, 0x94);
572 } while (retries-- && irqs_rd != irqs);
576 v4l2_err(sd, "Could not set interrupts: hw failure?\n");
579 /* Interrupt handler */
580 static int adv7511_isr(struct v4l2_subdev *sd, u32 status, bool *handled)
584 /* disable interrupts to prevent a race condition */
585 adv7511_set_isr(sd, false);
586 irq_status = adv7511_rd(sd, 0x96);
587 /* clear detected interrupts */
588 adv7511_wr(sd, 0x96, irq_status);
590 v4l2_dbg(1, debug, sd, "%s: irq 0x%x\n", __func__, irq_status);
592 if (irq_status & (MASK_ADV7511_HPD_INT | MASK_ADV7511_MSEN_INT))
593 adv7511_check_monitor_present_status(sd);
594 if (irq_status & MASK_ADV7511_EDID_RDY_INT)
595 adv7511_check_edid_status(sd);
597 /* enable interrupts */
598 adv7511_set_isr(sd, true);
605 static const struct v4l2_subdev_core_ops adv7511_core_ops = {
606 .log_status = adv7511_log_status,
607 #ifdef CONFIG_VIDEO_ADV_DEBUG
608 .g_register = adv7511_g_register,
609 .s_register = adv7511_s_register,
611 .s_power = adv7511_s_power,
612 .interrupt_service_routine = adv7511_isr,
615 /* ------------------------------ VIDEO OPS ------------------------------ */
617 /* Enable/disable adv7511 output */
618 static int adv7511_s_stream(struct v4l2_subdev *sd, int enable)
620 struct adv7511_state *state = get_adv7511_state(sd);
622 v4l2_dbg(1, debug, sd, "%s: %sable\n", __func__, (enable ? "en" : "dis"));
623 adv7511_wr_and_or(sd, 0xa1, ~0x3c, (enable ? 0 : 0x3c));
625 adv7511_check_monitor_present_status(sd);
627 adv7511_s_power(sd, 0);
628 state->have_monitor = false;
633 static int adv7511_s_dv_timings(struct v4l2_subdev *sd,
634 struct v4l2_dv_timings *timings)
636 struct adv7511_state *state = get_adv7511_state(sd);
638 v4l2_dbg(1, debug, sd, "%s:\n", __func__);
640 /* quick sanity check */
641 if (!v4l2_valid_dv_timings(timings, &adv7511_timings_cap, NULL, NULL))
644 /* Fill the optional fields .standards and .flags in struct v4l2_dv_timings
645 if the format is one of the CEA or DMT timings. */
646 v4l2_find_dv_timings_cap(timings, &adv7511_timings_cap, 0, NULL, NULL);
648 timings->bt.flags &= ~V4L2_DV_FL_REDUCED_FPS;
651 state->dv_timings = *timings;
653 /* update quantization range based on new dv_timings */
654 adv7511_set_rgb_quantization_mode(sd, state->rgb_quantization_range_ctrl);
656 /* update AVI infoframe */
657 adv7511_set_IT_content_AVI_InfoFrame(sd);
662 static int adv7511_g_dv_timings(struct v4l2_subdev *sd,
663 struct v4l2_dv_timings *timings)
665 struct adv7511_state *state = get_adv7511_state(sd);
667 v4l2_dbg(1, debug, sd, "%s:\n", __func__);
672 *timings = state->dv_timings;
677 static int adv7511_enum_dv_timings(struct v4l2_subdev *sd,
678 struct v4l2_enum_dv_timings *timings)
680 if (timings->pad != 0)
683 return v4l2_enum_dv_timings_cap(timings, &adv7511_timings_cap, NULL, NULL);
686 static int adv7511_dv_timings_cap(struct v4l2_subdev *sd,
687 struct v4l2_dv_timings_cap *cap)
692 *cap = adv7511_timings_cap;
696 static const struct v4l2_subdev_video_ops adv7511_video_ops = {
697 .s_stream = adv7511_s_stream,
698 .s_dv_timings = adv7511_s_dv_timings,
699 .g_dv_timings = adv7511_g_dv_timings,
702 /* ------------------------------ AUDIO OPS ------------------------------ */
703 static int adv7511_s_audio_stream(struct v4l2_subdev *sd, int enable)
705 v4l2_dbg(1, debug, sd, "%s: %sable\n", __func__, (enable ? "en" : "dis"));
708 adv7511_wr_and_or(sd, 0x4b, 0x3f, 0x80);
710 adv7511_wr_and_or(sd, 0x4b, 0x3f, 0x40);
715 static int adv7511_s_clock_freq(struct v4l2_subdev *sd, u32 freq)
720 case 32000: N = 4096; break;
721 case 44100: N = 6272; break;
722 case 48000: N = 6144; break;
723 case 88200: N = 12544; break;
724 case 96000: N = 12288; break;
725 case 176400: N = 25088; break;
726 case 192000: N = 24576; break;
731 /* Set N (used with CTS to regenerate the audio clock) */
732 adv7511_wr(sd, 0x01, (N >> 16) & 0xf);
733 adv7511_wr(sd, 0x02, (N >> 8) & 0xff);
734 adv7511_wr(sd, 0x03, N & 0xff);
739 static int adv7511_s_i2s_clock_freq(struct v4l2_subdev *sd, u32 freq)
744 case 32000: i2s_sf = 0x30; break;
745 case 44100: i2s_sf = 0x00; break;
746 case 48000: i2s_sf = 0x20; break;
747 case 88200: i2s_sf = 0x80; break;
748 case 96000: i2s_sf = 0xa0; break;
749 case 176400: i2s_sf = 0xc0; break;
750 case 192000: i2s_sf = 0xe0; break;
755 /* Set sampling frequency for I2S audio to 48 kHz */
756 adv7511_wr_and_or(sd, 0x15, 0xf, i2s_sf);
761 static int adv7511_s_routing(struct v4l2_subdev *sd, u32 input, u32 output, u32 config)
763 /* Only 2 channels in use for application */
764 adv7511_wr_and_or(sd, 0x73, 0xf8, 0x1);
765 /* Speaker mapping */
766 adv7511_wr(sd, 0x76, 0x00);
768 /* 16 bit audio word length */
769 adv7511_wr_and_or(sd, 0x14, 0xf0, 0x02);
774 static const struct v4l2_subdev_audio_ops adv7511_audio_ops = {
775 .s_stream = adv7511_s_audio_stream,
776 .s_clock_freq = adv7511_s_clock_freq,
777 .s_i2s_clock_freq = adv7511_s_i2s_clock_freq,
778 .s_routing = adv7511_s_routing,
781 /* ---------------------------- PAD OPS ------------------------------------- */
783 static int adv7511_get_edid(struct v4l2_subdev *sd, struct v4l2_edid *edid)
785 struct adv7511_state *state = get_adv7511_state(sd);
787 memset(edid->reserved, 0, sizeof(edid->reserved));
792 if (edid->start_block == 0 && edid->blocks == 0) {
793 edid->blocks = state->edid.segments * 2;
797 if (state->edid.segments == 0)
800 if (edid->start_block >= state->edid.segments * 2)
803 if (edid->start_block + edid->blocks > state->edid.segments * 2)
804 edid->blocks = state->edid.segments * 2 - edid->start_block;
806 memcpy(edid->edid, &state->edid.data[edid->start_block * 128],
812 static int adv7511_enum_mbus_code(struct v4l2_subdev *sd,
813 struct v4l2_subdev_fh *fh,
814 struct v4l2_subdev_mbus_code_enum *code)
819 switch (code->index) {
821 code->code = MEDIA_BUS_FMT_RGB888_1X24;
824 code->code = MEDIA_BUS_FMT_YUYV8_1X16;
827 code->code = MEDIA_BUS_FMT_UYVY8_1X16;
835 static void adv7511_fill_format(struct adv7511_state *state,
836 struct v4l2_mbus_framefmt *format)
838 memset(format, 0, sizeof(*format));
840 format->width = state->dv_timings.bt.width;
841 format->height = state->dv_timings.bt.height;
842 format->field = V4L2_FIELD_NONE;
845 static int adv7511_get_fmt(struct v4l2_subdev *sd, struct v4l2_subdev_fh *fh,
846 struct v4l2_subdev_format *format)
848 struct adv7511_state *state = get_adv7511_state(sd);
850 if (format->pad != 0)
853 adv7511_fill_format(state, &format->format);
855 if (format->which == V4L2_SUBDEV_FORMAT_TRY) {
856 struct v4l2_mbus_framefmt *fmt;
858 fmt = v4l2_subdev_get_try_format(fh, format->pad);
859 format->format.code = fmt->code;
860 format->format.colorspace = fmt->colorspace;
861 format->format.ycbcr_enc = fmt->ycbcr_enc;
862 format->format.quantization = fmt->quantization;
864 format->format.code = state->fmt_code;
865 format->format.colorspace = state->colorspace;
866 format->format.ycbcr_enc = state->ycbcr_enc;
867 format->format.quantization = state->quantization;
873 static int adv7511_set_fmt(struct v4l2_subdev *sd, struct v4l2_subdev_fh *fh,
874 struct v4l2_subdev_format *format)
876 struct adv7511_state *state = get_adv7511_state(sd);
878 * Bitfield namings come the CEA-861-F standard, table 8 "Auxiliary
879 * Video Information (AVI) InfoFrame Format"
882 * ec = Extended Colorimetry
884 * q = RGB Quantization Range
885 * yq = YCC Quantization Range
887 u8 c = HDMI_COLORIMETRY_NONE;
888 u8 ec = HDMI_EXTENDED_COLORIMETRY_XV_YCC_601;
889 u8 y = HDMI_COLORSPACE_RGB;
890 u8 q = HDMI_QUANTIZATION_RANGE_DEFAULT;
891 u8 yq = HDMI_YCC_QUANTIZATION_RANGE_LIMITED;
893 if (format->pad != 0)
895 switch (format->format.code) {
896 case MEDIA_BUS_FMT_UYVY8_1X16:
897 case MEDIA_BUS_FMT_YUYV8_1X16:
898 case MEDIA_BUS_FMT_RGB888_1X24:
904 adv7511_fill_format(state, &format->format);
905 if (format->which == V4L2_SUBDEV_FORMAT_TRY) {
906 struct v4l2_mbus_framefmt *fmt;
908 fmt = v4l2_subdev_get_try_format(fh, format->pad);
909 fmt->code = format->format.code;
910 fmt->colorspace = format->format.colorspace;
911 fmt->ycbcr_enc = format->format.ycbcr_enc;
912 fmt->quantization = format->format.quantization;
916 switch (format->format.code) {
917 case MEDIA_BUS_FMT_UYVY8_1X16:
918 adv7511_wr_and_or(sd, 0x15, 0xf0, 0x01);
919 adv7511_wr_and_or(sd, 0x16, 0x03, 0xb8);
920 y = HDMI_COLORSPACE_YUV422;
922 case MEDIA_BUS_FMT_YUYV8_1X16:
923 adv7511_wr_and_or(sd, 0x15, 0xf0, 0x01);
924 adv7511_wr_and_or(sd, 0x16, 0x03, 0xbc);
925 y = HDMI_COLORSPACE_YUV422;
927 case MEDIA_BUS_FMT_RGB888_1X24:
929 adv7511_wr_and_or(sd, 0x15, 0xf0, 0x00);
930 adv7511_wr_and_or(sd, 0x16, 0x03, 0x00);
933 state->fmt_code = format->format.code;
934 state->colorspace = format->format.colorspace;
935 state->ycbcr_enc = format->format.ycbcr_enc;
936 state->quantization = format->format.quantization;
938 switch (format->format.colorspace) {
939 case V4L2_COLORSPACE_ADOBERGB:
940 c = HDMI_COLORIMETRY_EXTENDED;
941 ec = y ? HDMI_EXTENDED_COLORIMETRY_ADOBE_YCC_601 :
942 HDMI_EXTENDED_COLORIMETRY_ADOBE_RGB;
944 case V4L2_COLORSPACE_SMPTE170M:
945 c = y ? HDMI_COLORIMETRY_ITU_601 : HDMI_COLORIMETRY_NONE;
946 if (y && format->format.ycbcr_enc == V4L2_YCBCR_ENC_XV601) {
947 c = HDMI_COLORIMETRY_EXTENDED;
948 ec = HDMI_EXTENDED_COLORIMETRY_XV_YCC_601;
951 case V4L2_COLORSPACE_REC709:
952 c = y ? HDMI_COLORIMETRY_ITU_709 : HDMI_COLORIMETRY_NONE;
953 if (y && format->format.ycbcr_enc == V4L2_YCBCR_ENC_XV709) {
954 c = HDMI_COLORIMETRY_EXTENDED;
955 ec = HDMI_EXTENDED_COLORIMETRY_XV_YCC_709;
958 case V4L2_COLORSPACE_SRGB:
959 c = y ? HDMI_COLORIMETRY_EXTENDED : HDMI_COLORIMETRY_NONE;
960 ec = y ? HDMI_EXTENDED_COLORIMETRY_S_YCC_601 :
961 HDMI_EXTENDED_COLORIMETRY_XV_YCC_601;
963 case V4L2_COLORSPACE_BT2020:
964 c = HDMI_COLORIMETRY_EXTENDED;
965 if (y && format->format.ycbcr_enc == V4L2_YCBCR_ENC_BT2020_CONST_LUM)
966 ec = 5; /* Not yet available in hdmi.h */
968 ec = 6; /* Not yet available in hdmi.h */
975 * CEA-861-F says that for RGB formats the YCC range must match the
976 * RGB range, although sources should ignore the YCC range.
978 * The RGB quantization range shouldn't be non-zero if the EDID doesn't
979 * have the Q bit set in the Video Capabilities Data Block, however this
980 * isn't checked at the moment. The assumption is that the application
981 * knows the EDID and can detect this.
983 * The same is true for the YCC quantization range: non-standard YCC
984 * quantization ranges should only be sent if the EDID has the YQ bit
985 * set in the Video Capabilities Data Block.
987 switch (format->format.quantization) {
988 case V4L2_QUANTIZATION_FULL_RANGE:
989 q = y ? HDMI_QUANTIZATION_RANGE_DEFAULT :
990 HDMI_QUANTIZATION_RANGE_FULL;
991 yq = q ? q - 1 : HDMI_YCC_QUANTIZATION_RANGE_FULL;
993 case V4L2_QUANTIZATION_LIM_RANGE:
994 q = y ? HDMI_QUANTIZATION_RANGE_DEFAULT :
995 HDMI_QUANTIZATION_RANGE_LIMITED;
996 yq = q ? q - 1 : HDMI_YCC_QUANTIZATION_RANGE_LIMITED;
1000 adv7511_wr_and_or(sd, 0x4a, 0xbf, 0);
1001 adv7511_wr_and_or(sd, 0x55, 0x9f, y << 5);
1002 adv7511_wr_and_or(sd, 0x56, 0x3f, c << 6);
1003 adv7511_wr_and_or(sd, 0x57, 0x83, (ec << 4) | (q << 2));
1004 adv7511_wr_and_or(sd, 0x59, 0x0f, yq << 4);
1005 adv7511_wr_and_or(sd, 0x4a, 0xff, 1);
1010 static const struct v4l2_subdev_pad_ops adv7511_pad_ops = {
1011 .get_edid = adv7511_get_edid,
1012 .enum_mbus_code = adv7511_enum_mbus_code,
1013 .get_fmt = adv7511_get_fmt,
1014 .set_fmt = adv7511_set_fmt,
1015 .enum_dv_timings = adv7511_enum_dv_timings,
1016 .dv_timings_cap = adv7511_dv_timings_cap,
1019 /* --------------------- SUBDEV OPS --------------------------------------- */
1021 static const struct v4l2_subdev_ops adv7511_ops = {
1022 .core = &adv7511_core_ops,
1023 .pad = &adv7511_pad_ops,
1024 .video = &adv7511_video_ops,
1025 .audio = &adv7511_audio_ops,
1028 /* ----------------------------------------------------------------------- */
1029 static void adv7511_dbg_dump_edid(int lvl, int debug, struct v4l2_subdev *sd, int segment, uint8_t *buf)
1033 v4l2_dbg(lvl, debug, sd, "edid segment %d\n", segment);
1034 for (i = 0; i < 256; i += 16) {
1038 v4l2_dbg(lvl, debug, sd, "\n");
1039 for (j = i; j < i + 16; j++) {
1040 sprintf(bp, "0x%02x, ", buf[j]);
1044 v4l2_dbg(lvl, debug, sd, "%s\n", b);
1049 static void adv7511_edid_handler(struct work_struct *work)
1051 struct delayed_work *dwork = to_delayed_work(work);
1052 struct adv7511_state *state = container_of(dwork, struct adv7511_state, edid_handler);
1053 struct v4l2_subdev *sd = &state->sd;
1054 struct adv7511_edid_detect ed;
1056 v4l2_dbg(1, debug, sd, "%s:\n", __func__);
1058 if (adv7511_check_edid_status(sd)) {
1059 /* Return if we received the EDID. */
1063 if (adv7511_have_hotplug(sd)) {
1064 /* We must retry reading the EDID several times, it is possible
1065 * that initially the EDID couldn't be read due to i2c errors
1066 * (DVI connectors are particularly prone to this problem). */
1067 if (state->edid.read_retries) {
1068 state->edid.read_retries--;
1069 v4l2_dbg(1, debug, sd, "%s: edid read failed\n", __func__);
1070 state->have_monitor = false;
1071 adv7511_s_power(sd, false);
1072 adv7511_s_power(sd, true);
1073 queue_delayed_work(state->work_queue, &state->edid_handler, EDID_DELAY);
1078 /* We failed to read the EDID, so send an event for this. */
1080 ed.segment = adv7511_rd(sd, 0xc4);
1081 v4l2_subdev_notify(sd, ADV7511_EDID_DETECT, (void *)&ed);
1082 v4l2_dbg(1, debug, sd, "%s: no edid found\n", __func__);
1085 static void adv7511_audio_setup(struct v4l2_subdev *sd)
1087 v4l2_dbg(1, debug, sd, "%s\n", __func__);
1089 adv7511_s_i2s_clock_freq(sd, 48000);
1090 adv7511_s_clock_freq(sd, 48000);
1091 adv7511_s_routing(sd, 0, 0, 0);
1094 /* Configure hdmi transmitter. */
1095 static void adv7511_setup(struct v4l2_subdev *sd)
1097 struct adv7511_state *state = get_adv7511_state(sd);
1098 v4l2_dbg(1, debug, sd, "%s\n", __func__);
1100 /* Input format: RGB 4:4:4 */
1101 adv7511_wr_and_or(sd, 0x15, 0xf0, 0x0);
1102 /* Output format: RGB 4:4:4 */
1103 adv7511_wr_and_or(sd, 0x16, 0x7f, 0x0);
1104 /* 1st order interpolation 4:2:2 -> 4:4:4 up conversion, Aspect ratio: 16:9 */
1105 adv7511_wr_and_or(sd, 0x17, 0xf9, 0x06);
1106 /* Disable pixel repetition */
1107 adv7511_wr_and_or(sd, 0x3b, 0x9f, 0x0);
1109 adv7511_wr_and_or(sd, 0x18, 0x7f, 0x0);
1110 /* Output format: RGB 4:4:4, Active Format Information is valid,
1112 adv7511_wr_and_or(sd, 0x55, 0x9c, 0x12);
1113 /* AVI Info frame packet enable, Audio Info frame disable */
1114 adv7511_wr_and_or(sd, 0x44, 0xe7, 0x10);
1115 /* Colorimetry, Active format aspect ratio: same as picure. */
1116 adv7511_wr(sd, 0x56, 0xa8);
1118 adv7511_wr_and_or(sd, 0xaf, 0xed, 0x0);
1120 /* Positive clk edge capture for input video clock */
1121 adv7511_wr_and_or(sd, 0xba, 0x1f, 0x60);
1123 adv7511_audio_setup(sd);
1125 v4l2_ctrl_handler_setup(&state->hdl);
1128 static void adv7511_notify_monitor_detect(struct v4l2_subdev *sd)
1130 struct adv7511_monitor_detect mdt;
1131 struct adv7511_state *state = get_adv7511_state(sd);
1133 mdt.present = state->have_monitor;
1134 v4l2_subdev_notify(sd, ADV7511_MONITOR_DETECT, (void *)&mdt);
1137 static void adv7511_check_monitor_present_status(struct v4l2_subdev *sd)
1139 struct adv7511_state *state = get_adv7511_state(sd);
1140 /* read hotplug and rx-sense state */
1141 uint8_t status = adv7511_rd(sd, 0x42);
1143 v4l2_dbg(1, debug, sd, "%s: status: 0x%x%s%s\n",
1146 status & MASK_ADV7511_HPD_DETECT ? ", hotplug" : "",
1147 status & MASK_ADV7511_MSEN_DETECT ? ", rx-sense" : "");
1149 /* update read only ctrls */
1150 v4l2_ctrl_s_ctrl(state->hotplug_ctrl, adv7511_have_hotplug(sd) ? 0x1 : 0x0);
1151 v4l2_ctrl_s_ctrl(state->rx_sense_ctrl, adv7511_have_rx_sense(sd) ? 0x1 : 0x0);
1152 v4l2_ctrl_s_ctrl(state->have_edid0_ctrl, state->edid.segments ? 0x1 : 0x0);
1154 if ((status & MASK_ADV7511_HPD_DETECT) && ((status & MASK_ADV7511_MSEN_DETECT) || state->edid.segments)) {
1155 v4l2_dbg(1, debug, sd, "%s: hotplug and (rx-sense or edid)\n", __func__);
1156 if (!state->have_monitor) {
1157 v4l2_dbg(1, debug, sd, "%s: monitor detected\n", __func__);
1158 state->have_monitor = true;
1159 adv7511_set_isr(sd, true);
1160 if (!adv7511_s_power(sd, true)) {
1161 v4l2_dbg(1, debug, sd, "%s: monitor detected, powerup failed\n", __func__);
1165 adv7511_notify_monitor_detect(sd);
1166 state->edid.read_retries = EDID_MAX_RETRIES;
1167 queue_delayed_work(state->work_queue, &state->edid_handler, EDID_DELAY);
1169 } else if (status & MASK_ADV7511_HPD_DETECT) {
1170 v4l2_dbg(1, debug, sd, "%s: hotplug detected\n", __func__);
1171 state->edid.read_retries = EDID_MAX_RETRIES;
1172 queue_delayed_work(state->work_queue, &state->edid_handler, EDID_DELAY);
1173 } else if (!(status & MASK_ADV7511_HPD_DETECT)) {
1174 v4l2_dbg(1, debug, sd, "%s: hotplug not detected\n", __func__);
1175 if (state->have_monitor) {
1176 v4l2_dbg(1, debug, sd, "%s: monitor not detected\n", __func__);
1177 state->have_monitor = false;
1178 adv7511_notify_monitor_detect(sd);
1180 adv7511_s_power(sd, false);
1181 memset(&state->edid, 0, sizeof(struct adv7511_state_edid));
1185 static bool edid_block_verify_crc(uint8_t *edid_block)
1190 for (i = 0; i < 128; i++)
1191 sum += edid_block[i];
1195 static bool edid_verify_crc(struct v4l2_subdev *sd, u32 segment)
1197 struct adv7511_state *state = get_adv7511_state(sd);
1198 u32 blocks = state->edid.blocks;
1199 uint8_t *data = state->edid.data;
1201 if (!edid_block_verify_crc(&data[segment * 256]))
1203 if ((segment + 1) * 2 <= blocks)
1204 return edid_block_verify_crc(&data[segment * 256 + 128]);
1208 static bool edid_verify_header(struct v4l2_subdev *sd, u32 segment)
1210 static const u8 hdmi_header[] = {
1211 0x00, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0x00
1213 struct adv7511_state *state = get_adv7511_state(sd);
1214 u8 *data = state->edid.data;
1218 return !memcmp(data, hdmi_header, sizeof(hdmi_header));
1221 static bool adv7511_check_edid_status(struct v4l2_subdev *sd)
1223 struct adv7511_state *state = get_adv7511_state(sd);
1224 uint8_t edidRdy = adv7511_rd(sd, 0xc5);
1226 v4l2_dbg(1, debug, sd, "%s: edid ready (retries: %d)\n",
1227 __func__, EDID_MAX_RETRIES - state->edid.read_retries);
1229 if (state->edid.complete)
1232 if (edidRdy & MASK_ADV7511_EDID_RDY) {
1233 int segment = adv7511_rd(sd, 0xc4);
1234 struct adv7511_edid_detect ed;
1236 if (segment >= EDID_MAX_SEGM) {
1237 v4l2_err(sd, "edid segment number too big\n");
1240 v4l2_dbg(1, debug, sd, "%s: got segment %d\n", __func__, segment);
1241 adv7511_edid_rd(sd, 256, &state->edid.data[segment * 256]);
1242 adv7511_dbg_dump_edid(2, debug, sd, segment, &state->edid.data[segment * 256]);
1244 state->edid.blocks = state->edid.data[0x7e] + 1;
1245 v4l2_dbg(1, debug, sd, "%s: %d blocks in total\n", __func__, state->edid.blocks);
1247 if (!edid_verify_crc(sd, segment) ||
1248 !edid_verify_header(sd, segment)) {
1249 /* edid crc error, force reread of edid segment */
1250 v4l2_err(sd, "%s: edid crc or header error\n", __func__);
1251 state->have_monitor = false;
1252 adv7511_s_power(sd, false);
1253 adv7511_s_power(sd, true);
1256 /* one more segment read ok */
1257 state->edid.segments = segment + 1;
1258 if (((state->edid.data[0x7e] >> 1) + 1) > state->edid.segments) {
1259 /* Request next EDID segment */
1260 v4l2_dbg(1, debug, sd, "%s: request segment %d\n", __func__, state->edid.segments);
1261 adv7511_wr(sd, 0xc9, 0xf);
1262 adv7511_wr(sd, 0xc4, state->edid.segments);
1263 state->edid.read_retries = EDID_MAX_RETRIES;
1264 queue_delayed_work(state->work_queue, &state->edid_handler, EDID_DELAY);
1268 v4l2_dbg(1, debug, sd, "%s: edid complete with %d segment(s)\n", __func__, state->edid.segments);
1269 state->edid.complete = true;
1271 /* report when we have all segments
1272 but report only for segment 0
1276 state->edid_detect_counter++;
1277 v4l2_ctrl_s_ctrl(state->have_edid0_ctrl, state->edid.segments ? 0x1 : 0x0);
1278 v4l2_subdev_notify(sd, ADV7511_EDID_DETECT, (void *)&ed);
1285 /* ----------------------------------------------------------------------- */
1287 static void adv7511_init_setup(struct v4l2_subdev *sd)
1289 struct adv7511_state *state = get_adv7511_state(sd);
1290 struct adv7511_state_edid *edid = &state->edid;
1292 v4l2_dbg(1, debug, sd, "%s\n", __func__);
1294 /* clear all interrupts */
1295 adv7511_wr(sd, 0x96, 0xff);
1297 * Stop HPD from resetting a lot of registers.
1298 * It might leave the chip in a partly un-initialized state,
1299 * in particular with regards to hotplug bounces.
1301 adv7511_wr_and_or(sd, 0xd6, 0x3f, 0xc0);
1302 memset(edid, 0, sizeof(struct adv7511_state_edid));
1303 state->have_monitor = false;
1304 adv7511_set_isr(sd, false);
1305 adv7511_s_stream(sd, false);
1306 adv7511_s_audio_stream(sd, false);
1309 static int adv7511_probe(struct i2c_client *client, const struct i2c_device_id *id)
1311 struct adv7511_state *state;
1312 struct adv7511_platform_data *pdata = client->dev.platform_data;
1313 struct v4l2_ctrl_handler *hdl;
1314 struct v4l2_subdev *sd;
1318 /* Check if the adapter supports the needed features */
1319 if (!i2c_check_functionality(client->adapter, I2C_FUNC_SMBUS_BYTE_DATA))
1322 state = devm_kzalloc(&client->dev, sizeof(struct adv7511_state), GFP_KERNEL);
1328 v4l_err(client, "No platform data!\n");
1331 memcpy(&state->pdata, pdata, sizeof(state->pdata));
1332 state->fmt_code = MEDIA_BUS_FMT_RGB888_1X24;
1333 state->colorspace = V4L2_COLORSPACE_SRGB;
1337 v4l2_dbg(1, debug, sd, "detecting adv7511 client on address 0x%x\n",
1340 v4l2_i2c_subdev_init(sd, client, &adv7511_ops);
1343 v4l2_ctrl_handler_init(hdl, 10);
1344 /* add in ascending ID order */
1345 state->hdmi_mode_ctrl = v4l2_ctrl_new_std_menu(hdl, &adv7511_ctrl_ops,
1346 V4L2_CID_DV_TX_MODE, V4L2_DV_TX_MODE_HDMI,
1347 0, V4L2_DV_TX_MODE_DVI_D);
1348 state->hotplug_ctrl = v4l2_ctrl_new_std(hdl, NULL,
1349 V4L2_CID_DV_TX_HOTPLUG, 0, 1, 0, 0);
1350 state->rx_sense_ctrl = v4l2_ctrl_new_std(hdl, NULL,
1351 V4L2_CID_DV_TX_RXSENSE, 0, 1, 0, 0);
1352 state->have_edid0_ctrl = v4l2_ctrl_new_std(hdl, NULL,
1353 V4L2_CID_DV_TX_EDID_PRESENT, 0, 1, 0, 0);
1354 state->rgb_quantization_range_ctrl =
1355 v4l2_ctrl_new_std_menu(hdl, &adv7511_ctrl_ops,
1356 V4L2_CID_DV_TX_RGB_RANGE, V4L2_DV_RGB_RANGE_FULL,
1357 0, V4L2_DV_RGB_RANGE_AUTO);
1358 sd->ctrl_handler = hdl;
1363 state->hdmi_mode_ctrl->is_private = true;
1364 state->hotplug_ctrl->is_private = true;
1365 state->rx_sense_ctrl->is_private = true;
1366 state->have_edid0_ctrl->is_private = true;
1367 state->rgb_quantization_range_ctrl->is_private = true;
1369 state->pad.flags = MEDIA_PAD_FL_SINK;
1370 err = media_entity_init(&sd->entity, 1, &state->pad, 0);
1374 /* EDID and CEC i2c addr */
1375 state->i2c_edid_addr = state->pdata.i2c_edid << 1;
1376 state->i2c_cec_addr = state->pdata.i2c_cec << 1;
1378 state->chip_revision = adv7511_rd(sd, 0x0);
1379 chip_id[0] = adv7511_rd(sd, 0xf5);
1380 chip_id[1] = adv7511_rd(sd, 0xf6);
1381 if (chip_id[0] != 0x75 || chip_id[1] != 0x11) {
1382 v4l2_err(sd, "chip_id != 0x7511, read 0x%02x%02x\n", chip_id[0], chip_id[1]);
1387 state->i2c_edid = i2c_new_dummy(client->adapter, state->i2c_edid_addr >> 1);
1388 if (state->i2c_edid == NULL) {
1389 v4l2_err(sd, "failed to register edid i2c client\n");
1394 adv7511_wr(sd, 0xe2, 0x01); /* power down cec section */
1395 state->work_queue = create_singlethread_workqueue(sd->name);
1396 if (state->work_queue == NULL) {
1397 v4l2_err(sd, "could not create workqueue\n");
1402 INIT_DELAYED_WORK(&state->edid_handler, adv7511_edid_handler);
1404 adv7511_init_setup(sd);
1405 adv7511_set_isr(sd, true);
1406 adv7511_check_monitor_present_status(sd);
1408 v4l2_info(sd, "%s found @ 0x%x (%s)\n", client->name,
1409 client->addr << 1, client->adapter->name);
1413 i2c_unregister_device(state->i2c_edid);
1415 media_entity_cleanup(&sd->entity);
1417 v4l2_ctrl_handler_free(&state->hdl);
1421 /* ----------------------------------------------------------------------- */
1423 static int adv7511_remove(struct i2c_client *client)
1425 struct v4l2_subdev *sd = i2c_get_clientdata(client);
1426 struct adv7511_state *state = get_adv7511_state(sd);
1428 state->chip_revision = -1;
1430 v4l2_dbg(1, debug, sd, "%s removed @ 0x%x (%s)\n", client->name,
1431 client->addr << 1, client->adapter->name);
1433 adv7511_init_setup(sd);
1434 cancel_delayed_work(&state->edid_handler);
1435 i2c_unregister_device(state->i2c_edid);
1436 destroy_workqueue(state->work_queue);
1437 v4l2_device_unregister_subdev(sd);
1438 media_entity_cleanup(&sd->entity);
1439 v4l2_ctrl_handler_free(sd->ctrl_handler);
1443 /* ----------------------------------------------------------------------- */
1445 static struct i2c_device_id adv7511_id[] = {
1449 MODULE_DEVICE_TABLE(i2c, adv7511_id);
1451 static struct i2c_driver adv7511_driver = {
1453 .owner = THIS_MODULE,
1456 .probe = adv7511_probe,
1457 .remove = adv7511_remove,
1458 .id_table = adv7511_id,
1461 module_i2c_driver(adv7511_driver);