1 // SPDX-License-Identifier: GPL-2.0-only
3 * drivers/media/i2c/tvp514x.c
5 * TI TVP5146/47 decoder driver
7 * Copyright (C) 2008 Texas Instruments Inc
8 * Author: Vaibhav Hiremath <hvaibhav@ti.com>
11 * Sivaraj R <sivaraj@ti.com>
12 * Brijesh R Jadav <brijesh.j@ti.com>
13 * Hardik Shah <hardik.shah@ti.com>
14 * Manjunath Hadli <mrh@ti.com>
15 * Karicheri Muralidharan <m-karicheri2@ti.com>
16 * Prabhakar Lad <prabhakar.lad@ti.com>
19 #include <linux/i2c.h>
20 #include <linux/slab.h>
21 #include <linux/delay.h>
22 #include <linux/videodev2.h>
23 #include <linux/module.h>
24 #include <linux/v4l2-mediabus.h>
26 #include <linux/of_graph.h>
28 #include <media/v4l2-async.h>
29 #include <media/v4l2-device.h>
30 #include <media/v4l2-common.h>
31 #include <media/v4l2-mediabus.h>
32 #include <media/v4l2-fwnode.h>
33 #include <media/v4l2-ctrls.h>
34 #include <media/i2c/tvp514x.h>
35 #include <media/media-entity.h>
37 #include "tvp514x_regs.h"
39 /* Private macros for TVP */
40 #define I2C_RETRY_COUNT (5)
41 #define LOCK_RETRY_COUNT (5)
42 #define LOCK_RETRY_DELAY (200)
46 module_param(debug, bool, 0644);
47 MODULE_PARM_DESC(debug, "Debug level (0-1)");
49 MODULE_AUTHOR("Texas Instruments");
50 MODULE_DESCRIPTION("TVP514X linux decoder driver");
51 MODULE_LICENSE("GPL");
53 /* enum tvp514x_std - enum for supported standards */
61 * struct tvp514x_std_info - Structure to store standard information
62 * @width: Line width in pixels
63 * @height:Number of active lines
64 * @video_std: Value to write in REG_VIDEO_STD register
65 * @standard: v4l2 standard structure information
67 struct tvp514x_std_info {
71 struct v4l2_standard standard;
74 static struct tvp514x_reg tvp514x_reg_list_default[0x40];
76 static int tvp514x_s_stream(struct v4l2_subdev *sd, int enable);
78 * struct tvp514x_decoder - TVP5146/47 decoder object
79 * @sd: Subdevice Slave handle
80 * @hdl: embedded &struct v4l2_ctrl_handler
81 * @tvp514x_regs: copy of hw's regs with preset values.
82 * @pdata: Board specific
84 * @streaming: TVP5146/47 decoder streaming - enabled or disabled.
85 * @pix: Current pixel format
86 * @num_fmts: Number of formats
87 * @fmt_list: Format list
88 * @current_std: Current standard
89 * @num_stds: Number of standards
90 * @std_list: Standards list
91 * @input: Input routing at chip level
92 * @output: Output routing at chip level
93 * @pad: subdev media pad associated with the decoder
94 * @format: media bus frame format
95 * @int_seq: driver's register init sequence
97 struct tvp514x_decoder {
98 struct v4l2_subdev sd;
99 struct v4l2_ctrl_handler hdl;
100 struct tvp514x_reg tvp514x_regs[ARRAY_SIZE(tvp514x_reg_list_default)];
101 const struct tvp514x_platform_data *pdata;
106 struct v4l2_pix_format pix;
108 const struct v4l2_fmtdesc *fmt_list;
110 enum tvp514x_std current_std;
112 const struct tvp514x_std_info *std_list;
113 /* Input and Output Routing parameters */
117 /* mc related members */
118 struct media_pad pad;
119 struct v4l2_mbus_framefmt format;
121 struct tvp514x_reg *int_seq;
124 /* TVP514x default register values */
125 static struct tvp514x_reg tvp514x_reg_list_default[] = {
126 /* Composite selected */
127 {TOK_WRITE, REG_INPUT_SEL, 0x05},
128 {TOK_WRITE, REG_AFE_GAIN_CTRL, 0x0F},
130 {TOK_WRITE, REG_VIDEO_STD, 0x00},
131 {TOK_WRITE, REG_OPERATION_MODE, 0x00},
132 {TOK_SKIP, REG_AUTOSWITCH_MASK, 0x3F},
133 {TOK_WRITE, REG_COLOR_KILLER, 0x10},
134 {TOK_WRITE, REG_LUMA_CONTROL1, 0x00},
135 {TOK_WRITE, REG_LUMA_CONTROL2, 0x00},
136 {TOK_WRITE, REG_LUMA_CONTROL3, 0x02},
137 {TOK_WRITE, REG_BRIGHTNESS, 0x80},
138 {TOK_WRITE, REG_CONTRAST, 0x80},
139 {TOK_WRITE, REG_SATURATION, 0x80},
140 {TOK_WRITE, REG_HUE, 0x00},
141 {TOK_WRITE, REG_CHROMA_CONTROL1, 0x00},
142 {TOK_WRITE, REG_CHROMA_CONTROL2, 0x0E},
144 {TOK_SKIP, 0x0F, 0x00},
145 {TOK_WRITE, REG_COMP_PR_SATURATION, 0x80},
146 {TOK_WRITE, REG_COMP_Y_CONTRAST, 0x80},
147 {TOK_WRITE, REG_COMP_PB_SATURATION, 0x80},
149 {TOK_SKIP, 0x13, 0x00},
150 {TOK_WRITE, REG_COMP_Y_BRIGHTNESS, 0x80},
152 {TOK_SKIP, 0x15, 0x00},
154 {TOK_SKIP, REG_AVID_START_PIXEL_LSB, 0x55},
155 {TOK_SKIP, REG_AVID_START_PIXEL_MSB, 0x00},
156 {TOK_SKIP, REG_AVID_STOP_PIXEL_LSB, 0x25},
157 {TOK_SKIP, REG_AVID_STOP_PIXEL_MSB, 0x03},
159 {TOK_SKIP, REG_HSYNC_START_PIXEL_LSB, 0x00},
160 {TOK_SKIP, REG_HSYNC_START_PIXEL_MSB, 0x00},
161 {TOK_SKIP, REG_HSYNC_STOP_PIXEL_LSB, 0x40},
162 {TOK_SKIP, REG_HSYNC_STOP_PIXEL_MSB, 0x00},
164 {TOK_SKIP, REG_VSYNC_START_LINE_LSB, 0x04},
165 {TOK_SKIP, REG_VSYNC_START_LINE_MSB, 0x00},
166 {TOK_SKIP, REG_VSYNC_STOP_LINE_LSB, 0x07},
167 {TOK_SKIP, REG_VSYNC_STOP_LINE_MSB, 0x00},
169 {TOK_SKIP, REG_VBLK_START_LINE_LSB, 0x01},
170 {TOK_SKIP, REG_VBLK_START_LINE_MSB, 0x00},
171 {TOK_SKIP, REG_VBLK_STOP_LINE_LSB, 0x15},
172 {TOK_SKIP, REG_VBLK_STOP_LINE_MSB, 0x00},
174 {TOK_SKIP, 0x26, 0x00},
176 {TOK_SKIP, 0x27, 0x00},
177 {TOK_SKIP, REG_FAST_SWTICH_CONTROL, 0xCC},
179 {TOK_SKIP, 0x29, 0x00},
180 {TOK_SKIP, REG_FAST_SWTICH_SCART_DELAY, 0x00},
182 {TOK_SKIP, 0x2B, 0x00},
183 {TOK_SKIP, REG_SCART_DELAY, 0x00},
184 {TOK_SKIP, REG_CTI_DELAY, 0x00},
185 {TOK_SKIP, REG_CTI_CONTROL, 0x00},
187 {TOK_SKIP, 0x2F, 0x00},
189 {TOK_SKIP, 0x30, 0x00},
191 {TOK_SKIP, 0x31, 0x00},
192 /* HS, VS active high */
193 {TOK_WRITE, REG_SYNC_CONTROL, 0x00},
195 {TOK_WRITE, REG_OUTPUT_FORMATTER1, 0x00},
196 /* Enable clk & data */
197 {TOK_WRITE, REG_OUTPUT_FORMATTER2, 0x11},
198 /* Enable AVID & FLD */
199 {TOK_WRITE, REG_OUTPUT_FORMATTER3, 0xEE},
201 {TOK_WRITE, REG_OUTPUT_FORMATTER4, 0xAF},
202 {TOK_WRITE, REG_OUTPUT_FORMATTER5, 0xFF},
203 {TOK_WRITE, REG_OUTPUT_FORMATTER6, 0xFF},
205 {TOK_WRITE, REG_CLEAR_LOST_LOCK, 0x01},
210 * List of image formats supported by TVP5146/47 decoder
211 * Currently we are using 8 bit mode only, but can be
212 * extended to 10/20 bit mode.
214 static const struct v4l2_fmtdesc tvp514x_fmt_list[] = {
217 .type = V4L2_BUF_TYPE_VIDEO_CAPTURE,
219 .description = "8-bit UYVY 4:2:2 Format",
220 .pixelformat = V4L2_PIX_FMT_UYVY,
225 * Supported standards -
227 * Currently supports two standards only, need to add support for rest of the
228 * modes, like SECAM, etc...
230 static const struct tvp514x_std_info tvp514x_std_list[] = {
231 /* Standard: STD_NTSC_MJ */
233 .width = NTSC_NUM_ACTIVE_PIXELS,
234 .height = NTSC_NUM_ACTIVE_LINES,
235 .video_std = VIDEO_STD_NTSC_MJ_BIT,
240 .frameperiod = {1001, 30000},
243 /* Standard: STD_PAL_BDGHIN */
246 .width = PAL_NUM_ACTIVE_PIXELS,
247 .height = PAL_NUM_ACTIVE_LINES,
248 .video_std = VIDEO_STD_PAL_BDGHIN_BIT,
253 .frameperiod = {1, 25},
257 /* Standard: need to add for additional standard */
261 static inline struct tvp514x_decoder *to_decoder(struct v4l2_subdev *sd)
263 return container_of(sd, struct tvp514x_decoder, sd);
266 static inline struct v4l2_subdev *to_sd(struct v4l2_ctrl *ctrl)
268 return &container_of(ctrl->handler, struct tvp514x_decoder, hdl)->sd;
273 * tvp514x_read_reg() - Read a value from a register in an TVP5146/47.
274 * @sd: ptr to v4l2_subdev struct
275 * @reg: TVP5146/47 register address
277 * Returns value read if successful, or non-zero (-1) otherwise.
279 static int tvp514x_read_reg(struct v4l2_subdev *sd, u8 reg)
282 struct i2c_client *client = v4l2_get_subdevdata(sd);
286 err = i2c_smbus_read_byte_data(client, reg);
288 if (retry <= I2C_RETRY_COUNT) {
289 v4l2_warn(sd, "Read: retry ... %d\n", retry);
291 msleep_interruptible(10);
300 * dump_reg() - dump the register content of TVP5146/47.
301 * @sd: ptr to v4l2_subdev struct
302 * @reg: TVP5146/47 register address
304 static void dump_reg(struct v4l2_subdev *sd, u8 reg)
308 val = tvp514x_read_reg(sd, reg);
309 v4l2_info(sd, "Reg(0x%.2X): 0x%.2X\n", reg, val);
313 * tvp514x_write_reg() - Write a value to a register in TVP5146/47
314 * @sd: ptr to v4l2_subdev struct
315 * @reg: TVP5146/47 register address
316 * @val: value to be written to the register
318 * Write a value to a register in an TVP5146/47 decoder device.
319 * Returns zero if successful, or non-zero otherwise.
321 static int tvp514x_write_reg(struct v4l2_subdev *sd, u8 reg, u8 val)
324 struct i2c_client *client = v4l2_get_subdevdata(sd);
328 err = i2c_smbus_write_byte_data(client, reg, val);
330 if (retry <= I2C_RETRY_COUNT) {
331 v4l2_warn(sd, "Write: retry ... %d\n", retry);
333 msleep_interruptible(10);
342 * tvp514x_write_regs() : Initializes a list of TVP5146/47 registers
343 * @sd: ptr to v4l2_subdev struct
344 * @reglist: list of TVP5146/47 registers and values
346 * Initializes a list of TVP5146/47 registers:-
347 * if token is TOK_TERM, then entire write operation terminates
348 * if token is TOK_DELAY, then a delay of 'val' msec is introduced
349 * if token is TOK_SKIP, then the register write is skipped
350 * if token is TOK_WRITE, then the register write is performed
351 * Returns zero if successful, or non-zero otherwise.
353 static int tvp514x_write_regs(struct v4l2_subdev *sd,
354 const struct tvp514x_reg reglist[])
357 const struct tvp514x_reg *next = reglist;
359 for (; next->token != TOK_TERM; next++) {
360 if (next->token == TOK_DELAY) {
365 if (next->token == TOK_SKIP)
368 err = tvp514x_write_reg(sd, next->reg, (u8) next->val);
370 v4l2_err(sd, "Write failed. Err[%d]\n", err);
378 * tvp514x_query_current_std() : Query the current standard detected by TVP5146/47
379 * @sd: ptr to v4l2_subdev struct
381 * Returns the current standard detected by TVP5146/47, STD_INVALID if there is no
384 static enum tvp514x_std tvp514x_query_current_std(struct v4l2_subdev *sd)
388 std = tvp514x_read_reg(sd, REG_VIDEO_STD);
389 if ((std & VIDEO_STD_MASK) == VIDEO_STD_AUTO_SWITCH_BIT)
390 /* use the standard status register */
391 std_status = tvp514x_read_reg(sd, REG_VIDEO_STD_STATUS);
393 /* use the standard register itself */
396 switch (std_status & VIDEO_STD_MASK) {
397 case VIDEO_STD_NTSC_MJ_BIT:
400 case VIDEO_STD_PAL_BDGHIN_BIT:
401 return STD_PAL_BDGHIN;
410 /* TVP5146/47 register dump function */
411 static void tvp514x_reg_dump(struct v4l2_subdev *sd)
413 dump_reg(sd, REG_INPUT_SEL);
414 dump_reg(sd, REG_AFE_GAIN_CTRL);
415 dump_reg(sd, REG_VIDEO_STD);
416 dump_reg(sd, REG_OPERATION_MODE);
417 dump_reg(sd, REG_COLOR_KILLER);
418 dump_reg(sd, REG_LUMA_CONTROL1);
419 dump_reg(sd, REG_LUMA_CONTROL2);
420 dump_reg(sd, REG_LUMA_CONTROL3);
421 dump_reg(sd, REG_BRIGHTNESS);
422 dump_reg(sd, REG_CONTRAST);
423 dump_reg(sd, REG_SATURATION);
424 dump_reg(sd, REG_HUE);
425 dump_reg(sd, REG_CHROMA_CONTROL1);
426 dump_reg(sd, REG_CHROMA_CONTROL2);
427 dump_reg(sd, REG_COMP_PR_SATURATION);
428 dump_reg(sd, REG_COMP_Y_CONTRAST);
429 dump_reg(sd, REG_COMP_PB_SATURATION);
430 dump_reg(sd, REG_COMP_Y_BRIGHTNESS);
431 dump_reg(sd, REG_AVID_START_PIXEL_LSB);
432 dump_reg(sd, REG_AVID_START_PIXEL_MSB);
433 dump_reg(sd, REG_AVID_STOP_PIXEL_LSB);
434 dump_reg(sd, REG_AVID_STOP_PIXEL_MSB);
435 dump_reg(sd, REG_HSYNC_START_PIXEL_LSB);
436 dump_reg(sd, REG_HSYNC_START_PIXEL_MSB);
437 dump_reg(sd, REG_HSYNC_STOP_PIXEL_LSB);
438 dump_reg(sd, REG_HSYNC_STOP_PIXEL_MSB);
439 dump_reg(sd, REG_VSYNC_START_LINE_LSB);
440 dump_reg(sd, REG_VSYNC_START_LINE_MSB);
441 dump_reg(sd, REG_VSYNC_STOP_LINE_LSB);
442 dump_reg(sd, REG_VSYNC_STOP_LINE_MSB);
443 dump_reg(sd, REG_VBLK_START_LINE_LSB);
444 dump_reg(sd, REG_VBLK_START_LINE_MSB);
445 dump_reg(sd, REG_VBLK_STOP_LINE_LSB);
446 dump_reg(sd, REG_VBLK_STOP_LINE_MSB);
447 dump_reg(sd, REG_SYNC_CONTROL);
448 dump_reg(sd, REG_OUTPUT_FORMATTER1);
449 dump_reg(sd, REG_OUTPUT_FORMATTER2);
450 dump_reg(sd, REG_OUTPUT_FORMATTER3);
451 dump_reg(sd, REG_OUTPUT_FORMATTER4);
452 dump_reg(sd, REG_OUTPUT_FORMATTER5);
453 dump_reg(sd, REG_OUTPUT_FORMATTER6);
454 dump_reg(sd, REG_CLEAR_LOST_LOCK);
458 * tvp514x_configure() - Configure the TVP5146/47 registers
459 * @sd: ptr to v4l2_subdev struct
460 * @decoder: ptr to tvp514x_decoder structure
462 * Returns zero if successful, or non-zero otherwise.
464 static int tvp514x_configure(struct v4l2_subdev *sd,
465 struct tvp514x_decoder *decoder)
469 /* common register initialization */
471 tvp514x_write_regs(sd, decoder->tvp514x_regs);
476 tvp514x_reg_dump(sd);
482 * tvp514x_detect() - Detect if an tvp514x is present, and if so which revision.
483 * @sd: pointer to standard V4L2 sub-device structure
484 * @decoder: pointer to tvp514x_decoder structure
486 * A device is considered to be detected if the chip ID (LSB and MSB)
487 * registers match the expected values.
488 * Any value of the rom version register is accepted.
489 * Returns ENODEV error number if no device is detected, or zero
490 * if a device is detected.
492 static int tvp514x_detect(struct v4l2_subdev *sd,
493 struct tvp514x_decoder *decoder)
495 u8 chip_id_msb, chip_id_lsb, rom_ver;
496 struct i2c_client *client = v4l2_get_subdevdata(sd);
498 chip_id_msb = tvp514x_read_reg(sd, REG_CHIP_ID_MSB);
499 chip_id_lsb = tvp514x_read_reg(sd, REG_CHIP_ID_LSB);
500 rom_ver = tvp514x_read_reg(sd, REG_ROM_VERSION);
502 v4l2_dbg(1, debug, sd,
503 "chip id detected msb:0x%x lsb:0x%x rom version:0x%x\n",
504 chip_id_msb, chip_id_lsb, rom_ver);
505 if ((chip_id_msb != TVP514X_CHIP_ID_MSB)
506 || ((chip_id_lsb != TVP5146_CHIP_ID_LSB)
507 && (chip_id_lsb != TVP5147_CHIP_ID_LSB))) {
508 /* We didn't read the values we expected, so this must not be
511 v4l2_err(sd, "chip id mismatch msb:0x%x lsb:0x%x\n",
512 chip_id_msb, chip_id_lsb);
516 decoder->ver = rom_ver;
518 v4l2_info(sd, "%s (Version - 0x%.2x) found at 0x%x (%s)\n",
519 client->name, decoder->ver,
520 client->addr << 1, client->adapter->name);
525 * tvp514x_querystd() - V4L2 decoder interface handler for querystd
526 * @sd: pointer to standard V4L2 sub-device structure
527 * @std_id: standard V4L2 std_id ioctl enum
529 * Returns the current standard detected by TVP5146/47. If no active input is
530 * detected then *std_id is set to 0 and the function returns 0.
532 static int tvp514x_querystd(struct v4l2_subdev *sd, v4l2_std_id *std_id)
534 struct tvp514x_decoder *decoder = to_decoder(sd);
535 enum tvp514x_std current_std;
536 enum tvp514x_input input_sel;
537 u8 sync_lock_status, lock_mask;
542 /* To query the standard the TVP514x must power on the ADCs. */
543 if (!decoder->streaming) {
544 tvp514x_s_stream(sd, 1);
545 msleep(LOCK_RETRY_DELAY);
548 /* query the current standard */
549 current_std = tvp514x_query_current_std(sd);
550 if (current_std == STD_INVALID) {
551 *std_id = V4L2_STD_UNKNOWN;
555 input_sel = decoder->input;
558 case INPUT_CVBS_VI1A:
559 case INPUT_CVBS_VI1B:
560 case INPUT_CVBS_VI1C:
561 case INPUT_CVBS_VI2A:
562 case INPUT_CVBS_VI2B:
563 case INPUT_CVBS_VI2C:
564 case INPUT_CVBS_VI3A:
565 case INPUT_CVBS_VI3B:
566 case INPUT_CVBS_VI3C:
567 case INPUT_CVBS_VI4A:
568 lock_mask = STATUS_CLR_SUBCAR_LOCK_BIT |
569 STATUS_HORZ_SYNC_LOCK_BIT |
570 STATUS_VIRT_SYNC_LOCK_BIT;
573 case INPUT_SVIDEO_VI2A_VI1A:
574 case INPUT_SVIDEO_VI2B_VI1B:
575 case INPUT_SVIDEO_VI2C_VI1C:
576 case INPUT_SVIDEO_VI2A_VI3A:
577 case INPUT_SVIDEO_VI2B_VI3B:
578 case INPUT_SVIDEO_VI2C_VI3C:
579 case INPUT_SVIDEO_VI4A_VI1A:
580 case INPUT_SVIDEO_VI4A_VI1B:
581 case INPUT_SVIDEO_VI4A_VI1C:
582 case INPUT_SVIDEO_VI4A_VI3A:
583 case INPUT_SVIDEO_VI4A_VI3B:
584 case INPUT_SVIDEO_VI4A_VI3C:
585 lock_mask = STATUS_HORZ_SYNC_LOCK_BIT |
586 STATUS_VIRT_SYNC_LOCK_BIT;
588 /*Need to add other interfaces*/
592 /* check whether signal is locked */
593 sync_lock_status = tvp514x_read_reg(sd, REG_STATUS1);
594 if (lock_mask != (sync_lock_status & lock_mask)) {
595 *std_id = V4L2_STD_UNKNOWN;
596 return 0; /* No input detected */
599 *std_id &= decoder->std_list[current_std].standard.id;
601 v4l2_dbg(1, debug, sd, "Current STD: %s\n",
602 decoder->std_list[current_std].standard.name);
607 * tvp514x_s_std() - V4L2 decoder interface handler for s_std
608 * @sd: pointer to standard V4L2 sub-device structure
609 * @std_id: standard V4L2 v4l2_std_id ioctl enum
611 * If std_id is supported, sets the requested standard. Otherwise, returns
614 static int tvp514x_s_std(struct v4l2_subdev *sd, v4l2_std_id std_id)
616 struct tvp514x_decoder *decoder = to_decoder(sd);
619 for (i = 0; i < decoder->num_stds; i++)
620 if (std_id & decoder->std_list[i].standard.id)
623 if ((i == decoder->num_stds) || (i == STD_INVALID))
626 err = tvp514x_write_reg(sd, REG_VIDEO_STD,
627 decoder->std_list[i].video_std);
631 decoder->current_std = i;
632 decoder->tvp514x_regs[REG_VIDEO_STD].val =
633 decoder->std_list[i].video_std;
635 v4l2_dbg(1, debug, sd, "Standard set to: %s\n",
636 decoder->std_list[i].standard.name);
641 * tvp514x_s_routing() - V4L2 decoder interface handler for s_routing
642 * @sd: pointer to standard V4L2 sub-device structure
643 * @input: input selector for routing the signal
644 * @output: output selector for routing the signal
645 * @config: config value. Not used
647 * If index is valid, selects the requested input. Otherwise, returns -EINVAL if
648 * the input is not supported or there is no active signal present in the
651 static int tvp514x_s_routing(struct v4l2_subdev *sd,
652 u32 input, u32 output, u32 config)
654 struct tvp514x_decoder *decoder = to_decoder(sd);
656 enum tvp514x_input input_sel;
657 enum tvp514x_output output_sel;
659 if ((input >= INPUT_INVALID) ||
660 (output >= OUTPUT_INVALID))
661 /* Index out of bound */
667 err = tvp514x_write_reg(sd, REG_INPUT_SEL, input_sel);
671 output_sel |= tvp514x_read_reg(sd,
672 REG_OUTPUT_FORMATTER1) & 0x7;
673 err = tvp514x_write_reg(sd, REG_OUTPUT_FORMATTER1,
678 decoder->tvp514x_regs[REG_INPUT_SEL].val = input_sel;
679 decoder->tvp514x_regs[REG_OUTPUT_FORMATTER1].val = output_sel;
680 decoder->input = input;
681 decoder->output = output;
683 v4l2_dbg(1, debug, sd, "Input set to: %d\n", input_sel);
689 * tvp514x_s_ctrl() - V4L2 decoder interface handler for s_ctrl
690 * @ctrl: pointer to v4l2_ctrl structure
692 * If the requested control is supported, sets the control's current
693 * value in HW. Otherwise, returns -EINVAL if the control is not supported.
695 static int tvp514x_s_ctrl(struct v4l2_ctrl *ctrl)
697 struct v4l2_subdev *sd = to_sd(ctrl);
698 struct tvp514x_decoder *decoder = to_decoder(sd);
699 int err = -EINVAL, value;
704 case V4L2_CID_BRIGHTNESS:
705 err = tvp514x_write_reg(sd, REG_BRIGHTNESS, value);
707 decoder->tvp514x_regs[REG_BRIGHTNESS].val = value;
709 case V4L2_CID_CONTRAST:
710 err = tvp514x_write_reg(sd, REG_CONTRAST, value);
712 decoder->tvp514x_regs[REG_CONTRAST].val = value;
714 case V4L2_CID_SATURATION:
715 err = tvp514x_write_reg(sd, REG_SATURATION, value);
717 decoder->tvp514x_regs[REG_SATURATION].val = value;
722 else if (value == -180)
724 err = tvp514x_write_reg(sd, REG_HUE, value);
726 decoder->tvp514x_regs[REG_HUE].val = value;
728 case V4L2_CID_AUTOGAIN:
729 err = tvp514x_write_reg(sd, REG_AFE_GAIN_CTRL, value ? 0x0f : 0x0c);
731 decoder->tvp514x_regs[REG_AFE_GAIN_CTRL].val = value;
735 v4l2_dbg(1, debug, sd, "Set Control: ID - %d - %d\n",
736 ctrl->id, ctrl->val);
741 * tvp514x_g_frame_interval() - V4L2 decoder interface handler
742 * @sd: pointer to standard V4L2 sub-device structure
743 * @ival: pointer to a v4l2_subdev_frame_interval structure
745 * Returns the decoder's video CAPTURE parameters.
748 tvp514x_g_frame_interval(struct v4l2_subdev *sd,
749 struct v4l2_subdev_frame_interval *ival)
751 struct tvp514x_decoder *decoder = to_decoder(sd);
752 enum tvp514x_std current_std;
755 /* get the current standard */
756 current_std = decoder->current_std;
759 decoder->std_list[current_std].standard.frameperiod;
765 * tvp514x_s_frame_interval() - V4L2 decoder interface handler
766 * @sd: pointer to standard V4L2 sub-device structure
767 * @ival: pointer to a v4l2_subdev_frame_interval structure
769 * Configures the decoder to use the input parameters, if possible. If
770 * not possible, returns the appropriate error code.
773 tvp514x_s_frame_interval(struct v4l2_subdev *sd,
774 struct v4l2_subdev_frame_interval *ival)
776 struct tvp514x_decoder *decoder = to_decoder(sd);
777 struct v4l2_fract *timeperframe;
778 enum tvp514x_std current_std;
781 timeperframe = &ival->interval;
783 /* get the current standard */
784 current_std = decoder->current_std;
787 decoder->std_list[current_std].standard.frameperiod;
793 * tvp514x_s_stream() - V4L2 decoder i/f handler for s_stream
794 * @sd: pointer to standard V4L2 sub-device structure
795 * @enable: streaming enable or disable
797 * Sets streaming to enable or disable, if possible.
799 static int tvp514x_s_stream(struct v4l2_subdev *sd, int enable)
802 struct tvp514x_decoder *decoder = to_decoder(sd);
804 if (decoder->streaming == enable)
810 /* Power Down Sequence */
811 err = tvp514x_write_reg(sd, REG_OPERATION_MODE, 0x01);
813 v4l2_err(sd, "Unable to turn off decoder\n");
816 decoder->streaming = enable;
821 /* Power Up Sequence */
822 err = tvp514x_write_regs(sd, decoder->int_seq);
824 v4l2_err(sd, "Unable to turn on decoder\n");
827 /* Detect if not already detected */
828 err = tvp514x_detect(sd, decoder);
830 v4l2_err(sd, "Unable to detect decoder\n");
833 err = tvp514x_configure(sd, decoder);
835 v4l2_err(sd, "Unable to configure decoder\n");
838 decoder->streaming = enable;
849 static const struct v4l2_ctrl_ops tvp514x_ctrl_ops = {
850 .s_ctrl = tvp514x_s_ctrl,
854 * tvp514x_enum_mbus_code() - V4L2 decoder interface handler for enum_mbus_code
855 * @sd: pointer to standard V4L2 sub-device structure
856 * @sd_state: subdev state
857 * @code: pointer to v4l2_subdev_mbus_code_enum structure
859 * Enumertaes mbus codes supported
861 static int tvp514x_enum_mbus_code(struct v4l2_subdev *sd,
862 struct v4l2_subdev_state *sd_state,
863 struct v4l2_subdev_mbus_code_enum *code)
866 u32 index = code->index;
868 memset(code, 0, sizeof(*code));
875 code->code = MEDIA_BUS_FMT_UYVY8_2X8;
881 * tvp514x_get_pad_format() - V4L2 decoder interface handler for get pad format
882 * @sd: pointer to standard V4L2 sub-device structure
883 * @sd_state: subdev state
884 * @format: pointer to v4l2_subdev_format structure
886 * Retrieves pad format which is active or tried based on requirement
888 static int tvp514x_get_pad_format(struct v4l2_subdev *sd,
889 struct v4l2_subdev_state *sd_state,
890 struct v4l2_subdev_format *format)
892 struct tvp514x_decoder *decoder = to_decoder(sd);
893 __u32 which = format->which;
898 if (which == V4L2_SUBDEV_FORMAT_ACTIVE) {
899 format->format = decoder->format;
903 format->format.code = MEDIA_BUS_FMT_UYVY8_2X8;
904 format->format.width = tvp514x_std_list[decoder->current_std].width;
905 format->format.height = tvp514x_std_list[decoder->current_std].height;
906 format->format.colorspace = V4L2_COLORSPACE_SMPTE170M;
907 format->format.field = V4L2_FIELD_INTERLACED;
913 * tvp514x_set_pad_format() - V4L2 decoder interface handler for set pad format
914 * @sd: pointer to standard V4L2 sub-device structure
915 * @sd_state: subdev state
916 * @fmt: pointer to v4l2_subdev_format structure
918 * Set pad format for the output pad
920 static int tvp514x_set_pad_format(struct v4l2_subdev *sd,
921 struct v4l2_subdev_state *sd_state,
922 struct v4l2_subdev_format *fmt)
924 struct tvp514x_decoder *decoder = to_decoder(sd);
926 if (fmt->format.field != V4L2_FIELD_INTERLACED ||
927 fmt->format.code != MEDIA_BUS_FMT_UYVY8_2X8 ||
928 fmt->format.colorspace != V4L2_COLORSPACE_SMPTE170M ||
929 fmt->format.width != tvp514x_std_list[decoder->current_std].width ||
930 fmt->format.height != tvp514x_std_list[decoder->current_std].height)
933 decoder->format = fmt->format;
938 static const struct v4l2_subdev_video_ops tvp514x_video_ops = {
939 .s_std = tvp514x_s_std,
940 .s_routing = tvp514x_s_routing,
941 .querystd = tvp514x_querystd,
942 .g_frame_interval = tvp514x_g_frame_interval,
943 .s_frame_interval = tvp514x_s_frame_interval,
944 .s_stream = tvp514x_s_stream,
947 static const struct v4l2_subdev_pad_ops tvp514x_pad_ops = {
948 .enum_mbus_code = tvp514x_enum_mbus_code,
949 .get_fmt = tvp514x_get_pad_format,
950 .set_fmt = tvp514x_set_pad_format,
953 static const struct v4l2_subdev_ops tvp514x_ops = {
954 .video = &tvp514x_video_ops,
955 .pad = &tvp514x_pad_ops,
958 static const struct tvp514x_decoder tvp514x_dev = {
960 .fmt_list = tvp514x_fmt_list,
961 .num_fmts = ARRAY_SIZE(tvp514x_fmt_list),
963 /* Default to NTSC 8-bit YUV 422 */
964 .width = NTSC_NUM_ACTIVE_PIXELS,
965 .height = NTSC_NUM_ACTIVE_LINES,
966 .pixelformat = V4L2_PIX_FMT_UYVY,
967 .field = V4L2_FIELD_INTERLACED,
968 .bytesperline = NTSC_NUM_ACTIVE_PIXELS * 2,
969 .sizeimage = NTSC_NUM_ACTIVE_PIXELS * 2 *
970 NTSC_NUM_ACTIVE_LINES,
971 .colorspace = V4L2_COLORSPACE_SMPTE170M,
973 .current_std = STD_NTSC_MJ,
974 .std_list = tvp514x_std_list,
975 .num_stds = ARRAY_SIZE(tvp514x_std_list),
979 static struct tvp514x_platform_data *
980 tvp514x_get_pdata(struct i2c_client *client)
982 struct tvp514x_platform_data *pdata = NULL;
983 struct v4l2_fwnode_endpoint bus_cfg = { .bus_type = 0 };
984 struct device_node *endpoint;
987 if (!IS_ENABLED(CONFIG_OF) || !client->dev.of_node)
988 return client->dev.platform_data;
990 endpoint = of_graph_get_next_endpoint(client->dev.of_node, NULL);
994 if (v4l2_fwnode_endpoint_parse(of_fwnode_handle(endpoint), &bus_cfg))
997 pdata = devm_kzalloc(&client->dev, sizeof(*pdata), GFP_KERNEL);
1001 flags = bus_cfg.bus.parallel.flags;
1003 if (flags & V4L2_MBUS_HSYNC_ACTIVE_HIGH)
1004 pdata->hs_polarity = 1;
1006 if (flags & V4L2_MBUS_VSYNC_ACTIVE_HIGH)
1007 pdata->vs_polarity = 1;
1009 if (flags & V4L2_MBUS_PCLK_SAMPLE_RISING)
1010 pdata->clk_polarity = 1;
1013 of_node_put(endpoint);
1018 * tvp514x_probe() - decoder driver i2c probe handler
1019 * @client: i2c driver client device structure
1020 * @id: i2c driver id table
1022 * Register decoder as an i2c client device and V4L2
1026 tvp514x_probe(struct i2c_client *client, const struct i2c_device_id *id)
1028 struct tvp514x_platform_data *pdata = tvp514x_get_pdata(client);
1029 struct tvp514x_decoder *decoder;
1030 struct v4l2_subdev *sd;
1033 if (pdata == NULL) {
1034 dev_err(&client->dev, "No platform data\n");
1038 /* Check if the adapter supports the needed features */
1039 if (!i2c_check_functionality(client->adapter, I2C_FUNC_SMBUS_BYTE_DATA))
1042 decoder = devm_kzalloc(&client->dev, sizeof(*decoder), GFP_KERNEL);
1046 /* Initialize the tvp514x_decoder with default configuration */
1047 *decoder = tvp514x_dev;
1048 /* Copy default register configuration */
1049 memcpy(decoder->tvp514x_regs, tvp514x_reg_list_default,
1050 sizeof(tvp514x_reg_list_default));
1052 decoder->int_seq = (struct tvp514x_reg *)id->driver_data;
1054 /* Copy board specific information here */
1055 decoder->pdata = pdata;
1058 * Fetch platform specific data, and configure the
1059 * tvp514x_reg_list[] accordingly. Since this is one
1060 * time configuration, no need to preserve.
1062 decoder->tvp514x_regs[REG_OUTPUT_FORMATTER2].val |=
1063 (decoder->pdata->clk_polarity << 1);
1064 decoder->tvp514x_regs[REG_SYNC_CONTROL].val |=
1065 ((decoder->pdata->hs_polarity << 2) |
1066 (decoder->pdata->vs_polarity << 3));
1067 /* Set default standard to auto */
1068 decoder->tvp514x_regs[REG_VIDEO_STD].val =
1069 VIDEO_STD_AUTO_SWITCH_BIT;
1071 /* Register with V4L2 layer as slave device */
1073 v4l2_i2c_subdev_init(sd, client, &tvp514x_ops);
1075 #if defined(CONFIG_MEDIA_CONTROLLER)
1076 decoder->pad.flags = MEDIA_PAD_FL_SOURCE;
1077 decoder->sd.flags |= V4L2_SUBDEV_FL_HAS_DEVNODE;
1078 decoder->sd.entity.function = MEDIA_ENT_F_ATV_DECODER;
1080 ret = media_entity_pads_init(&decoder->sd.entity, 1, &decoder->pad);
1082 v4l2_err(sd, "%s decoder driver failed to register !!\n",
1087 v4l2_ctrl_handler_init(&decoder->hdl, 5);
1088 v4l2_ctrl_new_std(&decoder->hdl, &tvp514x_ctrl_ops,
1089 V4L2_CID_BRIGHTNESS, 0, 255, 1, 128);
1090 v4l2_ctrl_new_std(&decoder->hdl, &tvp514x_ctrl_ops,
1091 V4L2_CID_CONTRAST, 0, 255, 1, 128);
1092 v4l2_ctrl_new_std(&decoder->hdl, &tvp514x_ctrl_ops,
1093 V4L2_CID_SATURATION, 0, 255, 1, 128);
1094 v4l2_ctrl_new_std(&decoder->hdl, &tvp514x_ctrl_ops,
1095 V4L2_CID_HUE, -180, 180, 180, 0);
1096 v4l2_ctrl_new_std(&decoder->hdl, &tvp514x_ctrl_ops,
1097 V4L2_CID_AUTOGAIN, 0, 1, 1, 1);
1098 sd->ctrl_handler = &decoder->hdl;
1099 if (decoder->hdl.error) {
1100 ret = decoder->hdl.error;
1103 v4l2_ctrl_handler_setup(&decoder->hdl);
1105 ret = v4l2_async_register_subdev(&decoder->sd);
1107 v4l2_info(sd, "%s decoder driver registered !!\n", sd->name);
1111 v4l2_ctrl_handler_free(&decoder->hdl);
1112 media_entity_cleanup(&decoder->sd.entity);
1118 * tvp514x_remove() - decoder driver i2c remove handler
1119 * @client: i2c driver client device structure
1121 * Unregister decoder as an i2c client device and V4L2
1122 * device. Complement of tvp514x_probe().
1124 static void tvp514x_remove(struct i2c_client *client)
1126 struct v4l2_subdev *sd = i2c_get_clientdata(client);
1127 struct tvp514x_decoder *decoder = to_decoder(sd);
1129 v4l2_async_unregister_subdev(&decoder->sd);
1130 media_entity_cleanup(&decoder->sd.entity);
1131 v4l2_ctrl_handler_free(&decoder->hdl);
1133 /* TVP5146 Init/Power on Sequence */
1134 static const struct tvp514x_reg tvp5146_init_reg_seq[] = {
1135 {TOK_WRITE, REG_VBUS_ADDRESS_ACCESS1, 0x02},
1136 {TOK_WRITE, REG_VBUS_ADDRESS_ACCESS2, 0x00},
1137 {TOK_WRITE, REG_VBUS_ADDRESS_ACCESS3, 0x80},
1138 {TOK_WRITE, REG_VBUS_DATA_ACCESS_NO_VBUS_ADDR_INCR, 0x01},
1139 {TOK_WRITE, REG_VBUS_ADDRESS_ACCESS1, 0x60},
1140 {TOK_WRITE, REG_VBUS_ADDRESS_ACCESS2, 0x00},
1141 {TOK_WRITE, REG_VBUS_ADDRESS_ACCESS3, 0xB0},
1142 {TOK_WRITE, REG_VBUS_DATA_ACCESS_NO_VBUS_ADDR_INCR, 0x01},
1143 {TOK_WRITE, REG_VBUS_DATA_ACCESS_NO_VBUS_ADDR_INCR, 0x00},
1144 {TOK_WRITE, REG_OPERATION_MODE, 0x01},
1145 {TOK_WRITE, REG_OPERATION_MODE, 0x00},
1149 /* TVP5147 Init/Power on Sequence */
1150 static const struct tvp514x_reg tvp5147_init_reg_seq[] = {
1151 {TOK_WRITE, REG_VBUS_ADDRESS_ACCESS1, 0x02},
1152 {TOK_WRITE, REG_VBUS_ADDRESS_ACCESS2, 0x00},
1153 {TOK_WRITE, REG_VBUS_ADDRESS_ACCESS3, 0x80},
1154 {TOK_WRITE, REG_VBUS_DATA_ACCESS_NO_VBUS_ADDR_INCR, 0x01},
1155 {TOK_WRITE, REG_VBUS_ADDRESS_ACCESS1, 0x60},
1156 {TOK_WRITE, REG_VBUS_ADDRESS_ACCESS2, 0x00},
1157 {TOK_WRITE, REG_VBUS_ADDRESS_ACCESS3, 0xB0},
1158 {TOK_WRITE, REG_VBUS_DATA_ACCESS_NO_VBUS_ADDR_INCR, 0x01},
1159 {TOK_WRITE, REG_VBUS_ADDRESS_ACCESS1, 0x16},
1160 {TOK_WRITE, REG_VBUS_ADDRESS_ACCESS2, 0x00},
1161 {TOK_WRITE, REG_VBUS_ADDRESS_ACCESS3, 0xA0},
1162 {TOK_WRITE, REG_VBUS_DATA_ACCESS_NO_VBUS_ADDR_INCR, 0x16},
1163 {TOK_WRITE, REG_VBUS_ADDRESS_ACCESS1, 0x60},
1164 {TOK_WRITE, REG_VBUS_ADDRESS_ACCESS2, 0x00},
1165 {TOK_WRITE, REG_VBUS_ADDRESS_ACCESS3, 0xB0},
1166 {TOK_WRITE, REG_VBUS_DATA_ACCESS_NO_VBUS_ADDR_INCR, 0x00},
1167 {TOK_WRITE, REG_OPERATION_MODE, 0x01},
1168 {TOK_WRITE, REG_OPERATION_MODE, 0x00},
1172 /* TVP5146M2/TVP5147M1 Init/Power on Sequence */
1173 static const struct tvp514x_reg tvp514xm_init_reg_seq[] = {
1174 {TOK_WRITE, REG_OPERATION_MODE, 0x01},
1175 {TOK_WRITE, REG_OPERATION_MODE, 0x00},
1180 * I2C Device Table -
1182 * name - Name of the actual device/chip.
1183 * driver_data - Driver data
1185 static const struct i2c_device_id tvp514x_id[] = {
1186 {"tvp5146", (unsigned long)tvp5146_init_reg_seq},
1187 {"tvp5146m2", (unsigned long)tvp514xm_init_reg_seq},
1188 {"tvp5147", (unsigned long)tvp5147_init_reg_seq},
1189 {"tvp5147m1", (unsigned long)tvp514xm_init_reg_seq},
1193 MODULE_DEVICE_TABLE(i2c, tvp514x_id);
1195 #if IS_ENABLED(CONFIG_OF)
1196 static const struct of_device_id tvp514x_of_match[] = {
1197 { .compatible = "ti,tvp5146", },
1198 { .compatible = "ti,tvp5146m2", },
1199 { .compatible = "ti,tvp5147", },
1200 { .compatible = "ti,tvp5147m1", },
1203 MODULE_DEVICE_TABLE(of, tvp514x_of_match);
1206 static struct i2c_driver tvp514x_driver = {
1208 .of_match_table = of_match_ptr(tvp514x_of_match),
1209 .name = TVP514X_MODULE_NAME,
1211 .probe = tvp514x_probe,
1212 .remove = tvp514x_remove,
1213 .id_table = tvp514x_id,
1216 module_i2c_driver(tvp514x_driver);