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linux/drivers/media/i2c/tvp5150.c
Claudiu Beznea 26ce7054d8 media: i2c: tvp5150: check return value of devm_kasprintf() 
devm_kasprintf() returns a pointer to dynamically allocated memory.
Pointer could be NULL in case allocation fails. Check pointer validity.
Identified with coccinelle (kmerr.cocci script).

Fixes: 0556f1d580 ("media: tvp5150: add input source selection of_graph support")
Signed-off-by: Claudiu Beznea <claudiu.beznea@microchip.com>
Reviewed-by: Marco Felsch <m.felsch@pengutronix.de>
Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@kernel.org>
2023-07-14 13:08:14 +02:00

2293 lines
61 KiB
C
Raw Blame History

// SPDX-License-Identifier: GPL-2.0
//
// tvp5150 - Texas Instruments TVP5150A/AM1 and TVP5151 video decoder driver
//
// Copyright (c) 2005,2006 Mauro Carvalho Chehab <mchehab@kernel.org>
#include <dt-bindings/media/tvp5150.h>
#include <linux/i2c.h>
#include <linux/slab.h>
#include <linux/videodev2.h>
#include <linux/delay.h>
#include <linux/gpio/consumer.h>
#include <linux/interrupt.h>
#include <linux/module.h>
#include <linux/of_graph.h>
#include <linux/pm_runtime.h>
#include <linux/regmap.h>
#include <media/v4l2-async.h>
#include <media/v4l2-device.h>
#include <media/v4l2-event.h>
#include <media/v4l2-ctrls.h>
#include <media/v4l2-fwnode.h>
#include <media/v4l2-mc.h>
#include <media/v4l2-rect.h>
#include "tvp5150_reg.h"
#define TVP5150_H_MAX 720U
#define TVP5150_V_MAX_525_60 480U
#define TVP5150_V_MAX_OTHERS 576U
#define TVP5150_MAX_CROP_LEFT 511
#define TVP5150_MAX_CROP_TOP 127
#define TVP5150_CROP_SHIFT 2
#define TVP5150_MBUS_FMT MEDIA_BUS_FMT_UYVY8_2X8
#define TVP5150_FIELD V4L2_FIELD_ALTERNATE
#define TVP5150_COLORSPACE V4L2_COLORSPACE_SMPTE170M
#define TVP5150_STD_MASK (V4L2_STD_NTSC | \
V4L2_STD_NTSC_443 | \
V4L2_STD_PAL | \
V4L2_STD_PAL_M | \
V4L2_STD_PAL_N | \
V4L2_STD_PAL_Nc | \
V4L2_STD_SECAM)
#define TVP5150_MAX_CONNECTORS 3 /* Check dt-bindings for more information */
MODULE_DESCRIPTION("Texas Instruments TVP5150A/TVP5150AM1/TVP5151 video decoder driver");
MODULE_AUTHOR("Mauro Carvalho Chehab");
MODULE_LICENSE("GPL v2");
static int debug;
module_param(debug, int, 0644);
MODULE_PARM_DESC(debug, "Debug level (0-2)");
#define dprintk0(__dev, __arg...) dev_dbg_lvl(__dev, 0, 0, __arg)
enum tvp5150_pads {
TVP5150_PAD_AIP1A,
TVP5150_PAD_AIP1B,
TVP5150_PAD_VID_OUT,
TVP5150_NUM_PADS
};
struct tvp5150_connector {
struct v4l2_fwnode_connector base;
struct media_entity ent;
struct media_pad pad;
};
struct tvp5150 {
struct v4l2_subdev sd;
struct media_pad pads[TVP5150_NUM_PADS];
struct tvp5150_connector connectors[TVP5150_MAX_CONNECTORS];
struct tvp5150_connector *cur_connector;
unsigned int connectors_num;
struct v4l2_ctrl_handler hdl;
struct v4l2_rect rect;
struct regmap *regmap;
int irq;
v4l2_std_id norm; /* Current set standard */
v4l2_std_id detected_norm;
u32 input;
u32 output;
u32 oe;
int enable;
bool lock;
u16 dev_id;
u16 rom_ver;
enum v4l2_mbus_type mbus_type;
};
static inline struct tvp5150 *to_tvp5150(struct v4l2_subdev *sd)
{
return container_of(sd, struct tvp5150, sd);
}
static inline struct v4l2_subdev *to_sd(struct v4l2_ctrl *ctrl)
{
return &container_of(ctrl->handler, struct tvp5150, hdl)->sd;
}
static int tvp5150_read(struct v4l2_subdev *sd, unsigned char addr)
{
struct tvp5150 *decoder = to_tvp5150(sd);
int ret, val;
ret = regmap_read(decoder->regmap, addr, &val);
if (ret < 0)
return ret;
return val;
}
static void dump_reg_range(struct v4l2_subdev *sd, char *s, u8 init,
const u8 end, int max_line)
{
u8 buf[16];
int i = 0, j, len;
if (max_line > 16) {
dprintk0(sd->dev, "too much data to dump\n");
return;
}
for (i = init; i < end; i += max_line) {
len = (end - i > max_line) ? max_line : end - i;
for (j = 0; j < len; j++)
buf[j] = tvp5150_read(sd, i + j);
dprintk0(sd->dev, "%s reg %02x = %*ph\n", s, i, len, buf);
}
}
static int tvp5150_log_status(struct v4l2_subdev *sd)
{
dprintk0(sd->dev, "tvp5150: Video input source selection #1 = 0x%02x\n",
tvp5150_read(sd, TVP5150_VD_IN_SRC_SEL_1));
dprintk0(sd->dev, "tvp5150: Analog channel controls = 0x%02x\n",
tvp5150_read(sd, TVP5150_ANAL_CHL_CTL));
dprintk0(sd->dev, "tvp5150: Operation mode controls = 0x%02x\n",
tvp5150_read(sd, TVP5150_OP_MODE_CTL));
dprintk0(sd->dev, "tvp5150: Miscellaneous controls = 0x%02x\n",
tvp5150_read(sd, TVP5150_MISC_CTL));
dprintk0(sd->dev, "tvp5150: Autoswitch mask= 0x%02x\n",
tvp5150_read(sd, TVP5150_AUTOSW_MSK));
dprintk0(sd->dev, "tvp5150: Color killer threshold control = 0x%02x\n",
tvp5150_read(sd, TVP5150_COLOR_KIL_THSH_CTL));
dprintk0(sd->dev, "tvp5150: Luminance processing controls #1 #2 and #3 = %02x %02x %02x\n",
tvp5150_read(sd, TVP5150_LUMA_PROC_CTL_1),
tvp5150_read(sd, TVP5150_LUMA_PROC_CTL_2),
tvp5150_read(sd, TVP5150_LUMA_PROC_CTL_3));
dprintk0(sd->dev, "tvp5150: Brightness control = 0x%02x\n",
tvp5150_read(sd, TVP5150_BRIGHT_CTL));
dprintk0(sd->dev, "tvp5150: Color saturation control = 0x%02x\n",
tvp5150_read(sd, TVP5150_SATURATION_CTL));
dprintk0(sd->dev, "tvp5150: Hue control = 0x%02x\n",
tvp5150_read(sd, TVP5150_HUE_CTL));
dprintk0(sd->dev, "tvp5150: Contrast control = 0x%02x\n",
tvp5150_read(sd, TVP5150_CONTRAST_CTL));
dprintk0(sd->dev, "tvp5150: Outputs and data rates select = 0x%02x\n",
tvp5150_read(sd, TVP5150_DATA_RATE_SEL));
dprintk0(sd->dev, "tvp5150: Configuration shared pins = 0x%02x\n",
tvp5150_read(sd, TVP5150_CONF_SHARED_PIN));
dprintk0(sd->dev, "tvp5150: Active video cropping start = 0x%02x%02x\n",
tvp5150_read(sd, TVP5150_ACT_VD_CROP_ST_MSB),
tvp5150_read(sd, TVP5150_ACT_VD_CROP_ST_LSB));
dprintk0(sd->dev, "tvp5150: Active video cropping stop = 0x%02x%02x\n",
tvp5150_read(sd, TVP5150_ACT_VD_CROP_STP_MSB),
tvp5150_read(sd, TVP5150_ACT_VD_CROP_STP_LSB));
dprintk0(sd->dev, "tvp5150: Genlock/RTC = 0x%02x\n",
tvp5150_read(sd, TVP5150_GENLOCK));
dprintk0(sd->dev, "tvp5150: Horizontal sync start = 0x%02x\n",
tvp5150_read(sd, TVP5150_HORIZ_SYNC_START));
dprintk0(sd->dev, "tvp5150: Vertical blanking start = 0x%02x\n",
tvp5150_read(sd, TVP5150_VERT_BLANKING_START));
dprintk0(sd->dev, "tvp5150: Vertical blanking stop = 0x%02x\n",
tvp5150_read(sd, TVP5150_VERT_BLANKING_STOP));
dprintk0(sd->dev, "tvp5150: Chrominance processing control #1 and #2 = %02x %02x\n",
tvp5150_read(sd, TVP5150_CHROMA_PROC_CTL_1),
tvp5150_read(sd, TVP5150_CHROMA_PROC_CTL_2));
dprintk0(sd->dev, "tvp5150: Interrupt reset register B = 0x%02x\n",
tvp5150_read(sd, TVP5150_INT_RESET_REG_B));
dprintk0(sd->dev, "tvp5150: Interrupt enable register B = 0x%02x\n",
tvp5150_read(sd, TVP5150_INT_ENABLE_REG_B));
dprintk0(sd->dev, "tvp5150: Interrupt configuration register B = 0x%02x\n",
tvp5150_read(sd, TVP5150_INTT_CONFIG_REG_B));
dprintk0(sd->dev, "tvp5150: Video standard = 0x%02x\n",
tvp5150_read(sd, TVP5150_VIDEO_STD));
dprintk0(sd->dev, "tvp5150: Chroma gain factor: Cb=0x%02x Cr=0x%02x\n",
tvp5150_read(sd, TVP5150_CB_GAIN_FACT),
tvp5150_read(sd, TVP5150_CR_GAIN_FACTOR));
dprintk0(sd->dev, "tvp5150: Macrovision on counter = 0x%02x\n",
tvp5150_read(sd, TVP5150_MACROVISION_ON_CTR));
dprintk0(sd->dev, "tvp5150: Macrovision off counter = 0x%02x\n",
tvp5150_read(sd, TVP5150_MACROVISION_OFF_CTR));
dprintk0(sd->dev, "tvp5150: ITU-R BT.656.%d timing(TVP5150AM1 only)\n",
(tvp5150_read(sd, TVP5150_REV_SELECT) & 1) ? 3 : 4);
dprintk0(sd->dev, "tvp5150: Device ID = %02x%02x\n",
tvp5150_read(sd, TVP5150_MSB_DEV_ID),
tvp5150_read(sd, TVP5150_LSB_DEV_ID));
dprintk0(sd->dev, "tvp5150: ROM version = (hex) %02x.%02x\n",
tvp5150_read(sd, TVP5150_ROM_MAJOR_VER),
tvp5150_read(sd, TVP5150_ROM_MINOR_VER));
dprintk0(sd->dev, "tvp5150: Vertical line count = 0x%02x%02x\n",
tvp5150_read(sd, TVP5150_VERT_LN_COUNT_MSB),
tvp5150_read(sd, TVP5150_VERT_LN_COUNT_LSB));
dprintk0(sd->dev, "tvp5150: Interrupt status register B = 0x%02x\n",
tvp5150_read(sd, TVP5150_INT_STATUS_REG_B));
dprintk0(sd->dev, "tvp5150: Interrupt active register B = 0x%02x\n",
tvp5150_read(sd, TVP5150_INT_ACTIVE_REG_B));
dprintk0(sd->dev, "tvp5150: Status regs #1 to #5 = %02x %02x %02x %02x %02x\n",
tvp5150_read(sd, TVP5150_STATUS_REG_1),
tvp5150_read(sd, TVP5150_STATUS_REG_2),
tvp5150_read(sd, TVP5150_STATUS_REG_3),
tvp5150_read(sd, TVP5150_STATUS_REG_4),
tvp5150_read(sd, TVP5150_STATUS_REG_5));
dump_reg_range(sd, "Teletext filter 1", TVP5150_TELETEXT_FIL1_INI,
TVP5150_TELETEXT_FIL1_END, 8);
dump_reg_range(sd, "Teletext filter 2", TVP5150_TELETEXT_FIL2_INI,
TVP5150_TELETEXT_FIL2_END, 8);
dprintk0(sd->dev, "tvp5150: Teletext filter enable = 0x%02x\n",
tvp5150_read(sd, TVP5150_TELETEXT_FIL_ENA));
dprintk0(sd->dev, "tvp5150: Interrupt status register A = 0x%02x\n",
tvp5150_read(sd, TVP5150_INT_STATUS_REG_A));
dprintk0(sd->dev, "tvp5150: Interrupt enable register A = 0x%02x\n",
tvp5150_read(sd, TVP5150_INT_ENABLE_REG_A));
dprintk0(sd->dev, "tvp5150: Interrupt configuration = 0x%02x\n",
tvp5150_read(sd, TVP5150_INT_CONF));
dprintk0(sd->dev, "tvp5150: VDP status register = 0x%02x\n",
tvp5150_read(sd, TVP5150_VDP_STATUS_REG));
dprintk0(sd->dev, "tvp5150: FIFO word count = 0x%02x\n",
tvp5150_read(sd, TVP5150_FIFO_WORD_COUNT));
dprintk0(sd->dev, "tvp5150: FIFO interrupt threshold = 0x%02x\n",
tvp5150_read(sd, TVP5150_FIFO_INT_THRESHOLD));
dprintk0(sd->dev, "tvp5150: FIFO reset = 0x%02x\n",
tvp5150_read(sd, TVP5150_FIFO_RESET));
dprintk0(sd->dev, "tvp5150: Line number interrupt = 0x%02x\n",
tvp5150_read(sd, TVP5150_LINE_NUMBER_INT));
dprintk0(sd->dev, "tvp5150: Pixel alignment register = 0x%02x%02x\n",
tvp5150_read(sd, TVP5150_PIX_ALIGN_REG_HIGH),
tvp5150_read(sd, TVP5150_PIX_ALIGN_REG_LOW));
dprintk0(sd->dev, "tvp5150: FIFO output control = 0x%02x\n",
tvp5150_read(sd, TVP5150_FIFO_OUT_CTRL));
dprintk0(sd->dev, "tvp5150: Full field enable = 0x%02x\n",
tvp5150_read(sd, TVP5150_FULL_FIELD_ENA));
dprintk0(sd->dev, "tvp5150: Full field mode register = 0x%02x\n",
tvp5150_read(sd, TVP5150_FULL_FIELD_MODE_REG));
dump_reg_range(sd, "CC data", TVP5150_CC_DATA_INI,
TVP5150_CC_DATA_END, 8);
dump_reg_range(sd, "WSS data", TVP5150_WSS_DATA_INI,
TVP5150_WSS_DATA_END, 8);
dump_reg_range(sd, "VPS data", TVP5150_VPS_DATA_INI,
TVP5150_VPS_DATA_END, 8);
dump_reg_range(sd, "VITC data", TVP5150_VITC_DATA_INI,
TVP5150_VITC_DATA_END, 10);
dump_reg_range(sd, "Line mode", TVP5150_LINE_MODE_INI,
TVP5150_LINE_MODE_END, 8);
return 0;
}
/****************************************************************************
Basic functions
****************************************************************************/
static void tvp5150_selmux(struct v4l2_subdev *sd)
{
int opmode = 0;
struct tvp5150 *decoder = to_tvp5150(sd);
unsigned int mask, val;
int input = 0;
/* Only tvp5150am1 and tvp5151 have signal generator support */
if ((decoder->dev_id == 0x5150 && decoder->rom_ver == 0x0400) ||
(decoder->dev_id == 0x5151 && decoder->rom_ver == 0x0100)) {
if (!decoder->enable)
input = 8;
}
switch (decoder->input) {
case TVP5150_COMPOSITE1:
input |= 2;
fallthrough;
case TVP5150_COMPOSITE0:
break;
case TVP5150_SVIDEO:
default:
input |= 1;
break;
}
dev_dbg_lvl(sd->dev, 1, debug,
"Selecting video route: route input=%s, output=%s => tvp5150 input=0x%02x, opmode=0x%02x\n",
decoder->input == 0 ? "aip1a" :
decoder->input == 2 ? "aip1b" : "svideo",
decoder->output == 0 ? "normal" : "black-frame-gen",
input, opmode);
regmap_write(decoder->regmap, TVP5150_OP_MODE_CTL, opmode);
regmap_write(decoder->regmap, TVP5150_VD_IN_SRC_SEL_1, input);
/*
* Setup the FID/GLCO/VLK/HVLK and INTREQ/GPCL/VBLK output signals. For
* S-Video we output the vertical lock (VLK) signal on FID/GLCO/VLK/HVLK
* and set INTREQ/GPCL/VBLK to logic 0. For composite we output the
* field indicator (FID) signal on FID/GLCO/VLK/HVLK and set
* INTREQ/GPCL/VBLK to logic 1.
*/
mask = TVP5150_MISC_CTL_GPCL | TVP5150_MISC_CTL_HVLK;
if (decoder->input == TVP5150_SVIDEO)
val = TVP5150_MISC_CTL_HVLK;
else
val = TVP5150_MISC_CTL_GPCL;
regmap_update_bits(decoder->regmap, TVP5150_MISC_CTL, mask, val);
};
struct i2c_reg_value {
unsigned char reg;
unsigned char value;
};
/* Default values as sugested at TVP5150AM1 datasheet */
static const struct i2c_reg_value tvp5150_init_default[] = {
{ /* 0x00 */
TVP5150_VD_IN_SRC_SEL_1, 0x00
},
{ /* 0x01 */
TVP5150_ANAL_CHL_CTL, 0x15
},
{ /* 0x02 */
TVP5150_OP_MODE_CTL, 0x00
},
{ /* 0x03 */
TVP5150_MISC_CTL, 0x01
},
{ /* 0x06 */
TVP5150_COLOR_KIL_THSH_CTL, 0x10
},
{ /* 0x07 */
TVP5150_LUMA_PROC_CTL_1, 0x60
},
{ /* 0x08 */
TVP5150_LUMA_PROC_CTL_2, 0x00
},
{ /* 0x09 */
TVP5150_BRIGHT_CTL, 0x80
},
{ /* 0x0a */
TVP5150_SATURATION_CTL, 0x80
},
{ /* 0x0b */
TVP5150_HUE_CTL, 0x00
},
{ /* 0x0c */
TVP5150_CONTRAST_CTL, 0x80
},
{ /* 0x0d */
TVP5150_DATA_RATE_SEL, 0x47
},
{ /* 0x0e */
TVP5150_LUMA_PROC_CTL_3, 0x00
},
{ /* 0x0f */
TVP5150_CONF_SHARED_PIN, 0x08
},
{ /* 0x11 */
TVP5150_ACT_VD_CROP_ST_MSB, 0x00
},
{ /* 0x12 */
TVP5150_ACT_VD_CROP_ST_LSB, 0x00
},
{ /* 0x13 */
TVP5150_ACT_VD_CROP_STP_MSB, 0x00
},
{ /* 0x14 */
TVP5150_ACT_VD_CROP_STP_LSB, 0x00
},
{ /* 0x15 */
TVP5150_GENLOCK, 0x01
},
{ /* 0x16 */
TVP5150_HORIZ_SYNC_START, 0x80
},
{ /* 0x18 */
TVP5150_VERT_BLANKING_START, 0x00
},
{ /* 0x19 */
TVP5150_VERT_BLANKING_STOP, 0x00
},
{ /* 0x1a */
TVP5150_CHROMA_PROC_CTL_1, 0x0c
},
{ /* 0x1b */
TVP5150_CHROMA_PROC_CTL_2, 0x14
},
{ /* 0x1c */
TVP5150_INT_RESET_REG_B, 0x00
},
{ /* 0x1d */
TVP5150_INT_ENABLE_REG_B, 0x00
},
{ /* 0x1e */
TVP5150_INTT_CONFIG_REG_B, 0x00
},
{ /* 0x28 */
TVP5150_VIDEO_STD, 0x00
},
{ /* 0x2e */
TVP5150_MACROVISION_ON_CTR, 0x0f
},
{ /* 0x2f */
TVP5150_MACROVISION_OFF_CTR, 0x01
},
{ /* 0xbb */
TVP5150_TELETEXT_FIL_ENA, 0x00
},
{ /* 0xc0 */
TVP5150_INT_STATUS_REG_A, 0x00
},
{ /* 0xc1 */
TVP5150_INT_ENABLE_REG_A, 0x00
},
{ /* 0xc2 */
TVP5150_INT_CONF, 0x04
},
{ /* 0xc8 */
TVP5150_FIFO_INT_THRESHOLD, 0x80
},
{ /* 0xc9 */
TVP5150_FIFO_RESET, 0x00
},
{ /* 0xca */
TVP5150_LINE_NUMBER_INT, 0x00
},
{ /* 0xcb */
TVP5150_PIX_ALIGN_REG_LOW, 0x4e
},
{ /* 0xcc */
TVP5150_PIX_ALIGN_REG_HIGH, 0x00
},
{ /* 0xcd */
TVP5150_FIFO_OUT_CTRL, 0x01
},
{ /* 0xcf */
TVP5150_FULL_FIELD_ENA, 0x00
},
{ /* 0xd0 */
TVP5150_LINE_MODE_INI, 0x00
},
{ /* 0xfc */
TVP5150_FULL_FIELD_MODE_REG, 0x7f
},
{ /* end of data */
0xff, 0xff
}
};
/* Default values as sugested at TVP5150AM1 datasheet */
static const struct i2c_reg_value tvp5150_init_enable[] = {
{ /* Automatic offset and AGC enabled */
TVP5150_ANAL_CHL_CTL, 0x15
}, { /* Activate YCrCb output 0x9 or 0xd ? */
TVP5150_MISC_CTL, TVP5150_MISC_CTL_GPCL |
TVP5150_MISC_CTL_INTREQ_OE |
TVP5150_MISC_CTL_YCBCR_OE |
TVP5150_MISC_CTL_SYNC_OE |
TVP5150_MISC_CTL_VBLANK |
TVP5150_MISC_CTL_CLOCK_OE,
}, { /* Activates video std autodetection for all standards */
TVP5150_AUTOSW_MSK, 0x0
}, { /* Default format: 0x47. For 4:2:2: 0x40 */
TVP5150_DATA_RATE_SEL, 0x47
}, {
TVP5150_CHROMA_PROC_CTL_1, 0x0c
}, {
TVP5150_CHROMA_PROC_CTL_2, 0x54
}, { /* Non documented, but initialized on WinTV USB2 */
0x27, 0x20
}, {
0xff, 0xff
}
};
struct tvp5150_vbi_type {
unsigned int vbi_type;
unsigned int ini_line;
unsigned int end_line;
unsigned int by_field :1;
};
struct i2c_vbi_ram_value {
u16 reg;
struct tvp5150_vbi_type type;
unsigned char values[16];
};
/* This struct have the values for each supported VBI Standard
* by
tvp5150_vbi_types should follow the same order as vbi_ram_default
* value 0 means rom position 0x10, value 1 means rom position 0x30
* and so on. There are 16 possible locations from 0 to 15.
*/
static struct i2c_vbi_ram_value vbi_ram_default[] = {
/*
* FIXME: Current api doesn't handle all VBI types, those not
* yet supported are placed under #if 0
*/
#if 0
[0] = {0x010, /* Teletext, SECAM, WST System A */
{V4L2_SLICED_TELETEXT_SECAM, 6, 23, 1},
{ 0xaa, 0xaa, 0xff, 0xff, 0xe7, 0x2e, 0x20, 0x26,
0xe6, 0xb4, 0x0e, 0x00, 0x00, 0x00, 0x10, 0x00 }
},
#endif
[1] = {0x030, /* Teletext, PAL, WST System B */
{V4L2_SLICED_TELETEXT_B, 6, 22, 1},
{ 0xaa, 0xaa, 0xff, 0xff, 0x27, 0x2e, 0x20, 0x2b,
0xa6, 0x72, 0x10, 0x00, 0x00, 0x00, 0x10, 0x00 }
},
#if 0
[2] = {0x050, /* Teletext, PAL, WST System C */
{V4L2_SLICED_TELETEXT_PAL_C, 6, 22, 1},
{ 0xaa, 0xaa, 0xff, 0xff, 0xe7, 0x2e, 0x20, 0x22,
0xa6, 0x98, 0x0d, 0x00, 0x00, 0x00, 0x10, 0x00 }
},
[3] = {0x070, /* Teletext, NTSC, WST System B */
{V4L2_SLICED_TELETEXT_NTSC_B, 10, 21, 1},
{ 0xaa, 0xaa, 0xff, 0xff, 0x27, 0x2e, 0x20, 0x23,
0x69, 0x93, 0x0d, 0x00, 0x00, 0x00, 0x10, 0x00 }
},
[4] = {0x090, /* Tetetext, NTSC NABTS System C */
{V4L2_SLICED_TELETEXT_NTSC_C, 10, 21, 1},
{ 0xaa, 0xaa, 0xff, 0xff, 0xe7, 0x2e, 0x20, 0x22,
0x69, 0x93, 0x0d, 0x00, 0x00, 0x00, 0x15, 0x00 }
},
[5] = {0x0b0, /* Teletext, NTSC-J, NABTS System D */
{V4L2_SLICED_TELETEXT_NTSC_D, 10, 21, 1},
{ 0xaa, 0xaa, 0xff, 0xff, 0xa7, 0x2e, 0x20, 0x23,
0x69, 0x93, 0x0d, 0x00, 0x00, 0x00, 0x10, 0x00 }
},
[6] = {0x0d0, /* Closed Caption, PAL/SECAM */
{V4L2_SLICED_CAPTION_625, 22, 22, 1},
{ 0xaa, 0x2a, 0xff, 0x3f, 0x04, 0x51, 0x6e, 0x02,
0xa6, 0x7b, 0x09, 0x00, 0x00, 0x00, 0x27, 0x00 }
},
#endif
[7] = {0x0f0, /* Closed Caption, NTSC */
{V4L2_SLICED_CAPTION_525, 21, 21, 1},
{ 0xaa, 0x2a, 0xff, 0x3f, 0x04, 0x51, 0x6e, 0x02,
0x69, 0x8c, 0x09, 0x00, 0x00, 0x00, 0x27, 0x00 }
},
[8] = {0x110, /* Wide Screen Signal, PAL/SECAM */
{V4L2_SLICED_WSS_625, 23, 23, 1},
{ 0x5b, 0x55, 0xc5, 0xff, 0x00, 0x71, 0x6e, 0x42,
0xa6, 0xcd, 0x0f, 0x00, 0x00, 0x00, 0x3a, 0x00 }
},
#if 0
[9] = {0x130, /* Wide Screen Signal, NTSC C */
{V4L2_SLICED_WSS_525, 20, 20, 1},
{ 0x38, 0x00, 0x3f, 0x00, 0x00, 0x71, 0x6e, 0x43,
0x69, 0x7c, 0x08, 0x00, 0x00, 0x00, 0x39, 0x00 }
},
[10] = {0x150, /* Vertical Interval Timecode (VITC), PAL/SECAM */
{V4l2_SLICED_VITC_625, 6, 22, 0},
{ 0x00, 0x00, 0x00, 0x00, 0x00, 0x8f, 0x6d, 0x49,
0xa6, 0x85, 0x08, 0x00, 0x00, 0x00, 0x4c, 0x00 }
},
[11] = {0x170, /* Vertical Interval Timecode (VITC), NTSC */
{V4l2_SLICED_VITC_525, 10, 20, 0},
{ 0x00, 0x00, 0x00, 0x00, 0x00, 0x8f, 0x6d, 0x49,
0x69, 0x94, 0x08, 0x00, 0x00, 0x00, 0x4c, 0x00 }
},
#endif
[12] = {0x190, /* Video Program System (VPS), PAL */
{V4L2_SLICED_VPS, 16, 16, 0},
{ 0xaa, 0xaa, 0xff, 0xff, 0xba, 0xce, 0x2b, 0x0d,
0xa6, 0xda, 0x0b, 0x00, 0x00, 0x00, 0x60, 0x00 }
},
/* 0x1d0 User programmable */
};
static int tvp5150_write_inittab(struct v4l2_subdev *sd,
const struct i2c_reg_value *regs)
{
struct tvp5150 *decoder = to_tvp5150(sd);
while (regs->reg != 0xff) {
regmap_write(decoder->regmap, regs->reg, regs->value);
regs++;
}
return 0;
}
static int tvp5150_vdp_init(struct v4l2_subdev *sd)
{
struct tvp5150 *decoder = to_tvp5150(sd);
struct regmap *map = decoder->regmap;
unsigned int i;
int j;
/* Disable Full Field */
regmap_write(map, TVP5150_FULL_FIELD_ENA, 0);
/* Before programming, Line mode should be at 0xff */
for (i = TVP5150_LINE_MODE_INI; i <= TVP5150_LINE_MODE_END; i++)
regmap_write(map, i, 0xff);
/* Load Ram Table */
for (j = 0; j < ARRAY_SIZE(vbi_ram_default); j++) {
const struct i2c_vbi_ram_value *regs = &vbi_ram_default[j];
if (!regs->type.vbi_type)
continue;
regmap_write(map, TVP5150_CONF_RAM_ADDR_HIGH, regs->reg >> 8);
regmap_write(map, TVP5150_CONF_RAM_ADDR_LOW, regs->reg);
for (i = 0; i < 16; i++)
regmap_write(map, TVP5150_VDP_CONF_RAM_DATA,
regs->values[i]);
}
return 0;
}
/* Fills VBI capabilities based on i2c_vbi_ram_value struct */
static int tvp5150_g_sliced_vbi_cap(struct v4l2_subdev *sd,
struct v4l2_sliced_vbi_cap *cap)
{
int line, i;
dev_dbg_lvl(sd->dev, 1, debug, "g_sliced_vbi_cap\n");
memset(cap, 0, sizeof(*cap));
for (i = 0; i < ARRAY_SIZE(vbi_ram_default); i++) {
const struct i2c_vbi_ram_value *regs = &vbi_ram_default[i];
if (!regs->type.vbi_type)
continue;
for (line = regs->type.ini_line;
line <= regs->type.end_line;
line++) {
cap->service_lines[0][line] |= regs->type.vbi_type;
}
cap->service_set |= regs->type.vbi_type;
}
return 0;
}
/* Set vbi processing
* type - one of tvp5150_vbi_types
* line - line to gather data
* fields: bit 0 field1, bit 1, field2
* flags (default=0xf0) is a bitmask, were set means:
* bit 7: enable filtering null bytes on CC
* bit 6: send data also to FIFO
* bit 5: don't allow data with errors on FIFO
* bit 4: enable ECC when possible
* pix_align = pix alignment:
* LSB = field1
* MSB = field2
*/
static int tvp5150_set_vbi(struct v4l2_subdev *sd,
unsigned int type, u8 flags, int line,
const int fields)
{
struct tvp5150 *decoder = to_tvp5150(sd);
v4l2_std_id std = decoder->norm;
u8 reg;
int i, pos = 0;
if (std == V4L2_STD_ALL) {
dev_err(sd->dev, "VBI can't be configured without knowing number of lines\n");
return 0;
} else if (std & V4L2_STD_625_50) {
/* Don't follow NTSC Line number convension */
line += 3;
}
if (line < 6 || line > 27)
return 0;
for (i = 0; i < ARRAY_SIZE(vbi_ram_default); i++) {
const struct i2c_vbi_ram_value *regs = &vbi_ram_default[i];
if (!regs->type.vbi_type)
continue;
if ((type & regs->type.vbi_type) &&
(line >= regs->type.ini_line) &&
(line <= regs->type.end_line))
break;
pos++;
}
type = pos | (flags & 0xf0);
reg = ((line - 6) << 1) + TVP5150_LINE_MODE_INI;
if (fields & 1)
regmap_write(decoder->regmap, reg, type);
if (fields & 2)
regmap_write(decoder->regmap, reg + 1, type);
return type;
}
static int tvp5150_get_vbi(struct v4l2_subdev *sd, int line)
{
struct tvp5150 *decoder = to_tvp5150(sd);
v4l2_std_id std = decoder->norm;
u8 reg;
int pos, type = 0;
int i, ret = 0;
if (std == V4L2_STD_ALL) {
dev_err(sd->dev, "VBI can't be configured without knowing number of lines\n");
return 0;
} else if (std & V4L2_STD_625_50) {
/* Don't follow NTSC Line number convension */
line += 3;
}
if (line < 6 || line > 27)
return 0;
reg = ((line - 6) << 1) + TVP5150_LINE_MODE_INI;
for (i = 0; i <= 1; i++) {
ret = tvp5150_read(sd, reg + i);
if (ret < 0) {
dev_err(sd->dev, "%s: failed with error = %d\n",
__func__, ret);
return 0;
}
pos = ret & 0x0f;
if (pos < ARRAY_SIZE(vbi_ram_default))
type |= vbi_ram_default[pos].type.vbi_type;
}
return type;
}
static int tvp5150_set_std(struct v4l2_subdev *sd, v4l2_std_id std)
{
struct tvp5150 *decoder = to_tvp5150(sd);
int fmt = 0;
/* First tests should be against specific std */
if (std == V4L2_STD_NTSC_443) {
fmt = VIDEO_STD_NTSC_4_43_BIT;
} else if (std == V4L2_STD_PAL_M) {
fmt = VIDEO_STD_PAL_M_BIT;
} else if (std == V4L2_STD_PAL_N || std == V4L2_STD_PAL_Nc) {
fmt = VIDEO_STD_PAL_COMBINATION_N_BIT;
} else {
/* Then, test against generic ones */
if (std & V4L2_STD_NTSC)
fmt = VIDEO_STD_NTSC_MJ_BIT;
else if (std & V4L2_STD_PAL)
fmt = VIDEO_STD_PAL_BDGHIN_BIT;
else if (std & V4L2_STD_SECAM)
fmt = VIDEO_STD_SECAM_BIT;
}
dev_dbg_lvl(sd->dev, 1, debug, "Set video std register to %d.\n", fmt);
regmap_write(decoder->regmap, TVP5150_VIDEO_STD, fmt);
return 0;
}
static int tvp5150_g_std(struct v4l2_subdev *sd, v4l2_std_id *std)
{
struct tvp5150 *decoder = to_tvp5150(sd);
*std = decoder->norm;
return 0;
}
static int tvp5150_s_std(struct v4l2_subdev *sd, v4l2_std_id std)
{
struct tvp5150 *decoder = to_tvp5150(sd);
struct tvp5150_connector *cur_con = decoder->cur_connector;
v4l2_std_id supported_stds;
if (decoder->norm == std)
return 0;
/* In case of no of-connectors are available no limitations are made */
if (!decoder->connectors_num)
supported_stds = V4L2_STD_ALL;
else
supported_stds = cur_con->base.connector.analog.sdtv_stds;
/*
* Check if requested std or group of std's is/are supported by the
* connector.
*/
if ((supported_stds & std) == 0)
return -EINVAL;
/* Change cropping height limits */
if (std & V4L2_STD_525_60)
decoder->rect.height = TVP5150_V_MAX_525_60;
else
decoder->rect.height = TVP5150_V_MAX_OTHERS;
/* Set only the specific supported std in case of group of std's. */
decoder->norm = supported_stds & std;
return tvp5150_set_std(sd, std);
}
static v4l2_std_id tvp5150_read_std(struct v4l2_subdev *sd)
{
int val = tvp5150_read(sd, TVP5150_STATUS_REG_5);
switch (val & 0x0F) {
case 0x01:
return V4L2_STD_NTSC;
case 0x03:
return V4L2_STD_PAL;
case 0x05:
return V4L2_STD_PAL_M;
case 0x07:
return V4L2_STD_PAL_N | V4L2_STD_PAL_Nc;
case 0x09:
return V4L2_STD_NTSC_443;
case 0xb:
return V4L2_STD_SECAM;
default:
return V4L2_STD_UNKNOWN;
}
}
static int query_lock(struct v4l2_subdev *sd)
{
struct tvp5150 *decoder = to_tvp5150(sd);
int status;
if (decoder->irq)
return decoder->lock;
regmap_read(decoder->regmap, TVP5150_STATUS_REG_1, &status);
/* For standard detection, we need the 3 locks */
return (status & 0x0e) == 0x0e;
}
static int tvp5150_querystd(struct v4l2_subdev *sd, v4l2_std_id *std_id)
{
*std_id = query_lock(sd) ? tvp5150_read_std(sd) : V4L2_STD_UNKNOWN;
return 0;
}
static const struct v4l2_event tvp5150_ev_fmt = {
.type = V4L2_EVENT_SOURCE_CHANGE,
.u.src_change.changes = V4L2_EVENT_SRC_CH_RESOLUTION,
};
static irqreturn_t tvp5150_isr(int irq, void *dev_id)
{
struct tvp5150 *decoder = dev_id;
struct regmap *map = decoder->regmap;
unsigned int mask, active = 0, status = 0;
mask = TVP5150_MISC_CTL_YCBCR_OE | TVP5150_MISC_CTL_SYNC_OE |
TVP5150_MISC_CTL_CLOCK_OE;
regmap_read(map, TVP5150_INT_STATUS_REG_A, &status);
if (status) {
regmap_write(map, TVP5150_INT_STATUS_REG_A, status);
if (status & TVP5150_INT_A_LOCK) {
decoder->lock = !!(status & TVP5150_INT_A_LOCK_STATUS);
dev_dbg_lvl(decoder->sd.dev, 1, debug,
"sync lo%s signal\n",
decoder->lock ? "ck" : "ss");
v4l2_subdev_notify_event(&decoder->sd, &tvp5150_ev_fmt);
regmap_update_bits(map, TVP5150_MISC_CTL, mask,
decoder->lock ? decoder->oe : 0);
}
return IRQ_HANDLED;
}
regmap_read(map, TVP5150_INT_ACTIVE_REG_B, &active);
if (active) {
status = 0;
regmap_read(map, TVP5150_INT_STATUS_REG_B, &status);
if (status)
regmap_write(map, TVP5150_INT_RESET_REG_B, status);
}
return IRQ_HANDLED;
}
static int tvp5150_reset(struct v4l2_subdev *sd, u32 val)
{
struct tvp5150 *decoder = to_tvp5150(sd);
struct regmap *map = decoder->regmap;
/* Initializes TVP5150 to its default values */
tvp5150_write_inittab(sd, tvp5150_init_default);
if (decoder->irq) {
/* Configure pins: FID, VSYNC, INTREQ, SCLK */
regmap_write(map, TVP5150_CONF_SHARED_PIN, 0x0);
/* Set interrupt polarity to active high */
regmap_write(map, TVP5150_INT_CONF, TVP5150_VDPOE | 0x1);
regmap_write(map, TVP5150_INTT_CONFIG_REG_B, 0x1);
} else {
/* Configure pins: FID, VSYNC, GPCL/VBLK, SCLK */
regmap_write(map, TVP5150_CONF_SHARED_PIN, 0x2);
/* Keep interrupt polarity active low */
regmap_write(map, TVP5150_INT_CONF, TVP5150_VDPOE);
regmap_write(map, TVP5150_INTT_CONFIG_REG_B, 0x0);
}
/* Initializes VDP registers */
tvp5150_vdp_init(sd);
/* Selects decoder input */
tvp5150_selmux(sd);
/* Initialize image preferences */
v4l2_ctrl_handler_setup(&decoder->hdl);
return 0;
}
static int tvp5150_enable(struct v4l2_subdev *sd)
{
struct tvp5150 *decoder = to_tvp5150(sd);
v4l2_std_id std;
/* Initializes TVP5150 to stream enabled values */
tvp5150_write_inittab(sd, tvp5150_init_enable);
if (decoder->norm == V4L2_STD_ALL)
std = tvp5150_read_std(sd);
else
std = decoder->norm;
/* Disable autoswitch mode */
tvp5150_set_std(sd, std);
/*
* Enable the YCbCr and clock outputs. In discrete sync mode
* (non-BT.656) additionally enable the sync outputs.
*/
switch (decoder->mbus_type) {
case V4L2_MBUS_PARALLEL:
/* 8-bit 4:2:2 YUV with discrete sync output */
regmap_update_bits(decoder->regmap, TVP5150_DATA_RATE_SEL,
0x7, 0x0);
decoder->oe = TVP5150_MISC_CTL_YCBCR_OE |
TVP5150_MISC_CTL_CLOCK_OE |
TVP5150_MISC_CTL_SYNC_OE;
break;
case V4L2_MBUS_BT656:
decoder->oe = TVP5150_MISC_CTL_YCBCR_OE |
TVP5150_MISC_CTL_CLOCK_OE;
break;
default:
return -EINVAL;
}
return 0;
};
static int tvp5150_s_ctrl(struct v4l2_ctrl *ctrl)
{
struct v4l2_subdev *sd = to_sd(ctrl);
struct tvp5150 *decoder = to_tvp5150(sd);
switch (ctrl->id) {
case V4L2_CID_BRIGHTNESS:
regmap_write(decoder->regmap, TVP5150_BRIGHT_CTL, ctrl->val);
return 0;
case V4L2_CID_CONTRAST:
regmap_write(decoder->regmap, TVP5150_CONTRAST_CTL, ctrl->val);
return 0;
case V4L2_CID_SATURATION:
regmap_write(decoder->regmap, TVP5150_SATURATION_CTL,
ctrl->val);
return 0;
case V4L2_CID_HUE:
regmap_write(decoder->regmap, TVP5150_HUE_CTL, ctrl->val);
return 0;
case V4L2_CID_TEST_PATTERN:
decoder->enable = ctrl->val ? false : true;
tvp5150_selmux(sd);
return 0;
}
return -EINVAL;
}
static void tvp5150_set_default(v4l2_std_id std, struct v4l2_rect *crop)
{
/* Default is no cropping */
crop->top = 0;
crop->left = 0;
crop->width = TVP5150_H_MAX;
if (std & V4L2_STD_525_60)
crop->height = TVP5150_V_MAX_525_60;
else
crop->height = TVP5150_V_MAX_OTHERS;
}
static struct v4l2_rect *
tvp5150_get_pad_crop(struct tvp5150 *decoder,
struct v4l2_subdev_state *sd_state, unsigned int pad,
enum v4l2_subdev_format_whence which)
{
switch (which) {
case V4L2_SUBDEV_FORMAT_ACTIVE:
return &decoder->rect;
case V4L2_SUBDEV_FORMAT_TRY:
#if defined(CONFIG_VIDEO_V4L2_SUBDEV_API)
return v4l2_subdev_get_try_crop(&decoder->sd, sd_state, pad);
#else
return ERR_PTR(-EINVAL);
#endif
default:
return ERR_PTR(-EINVAL);
}
}
static int tvp5150_fill_fmt(struct v4l2_subdev *sd,
struct v4l2_subdev_state *sd_state,
struct v4l2_subdev_format *format)
{
struct v4l2_mbus_framefmt *f;
struct tvp5150 *decoder = to_tvp5150(sd);
if (!format || (format->pad != TVP5150_PAD_VID_OUT))
return -EINVAL;
f = &format->format;
f->width = decoder->rect.width;
f->height = decoder->rect.height / 2;
f->code = TVP5150_MBUS_FMT;
f->field = TVP5150_FIELD;
f->colorspace = TVP5150_COLORSPACE;
dev_dbg_lvl(sd->dev, 1, debug, "width = %d, height = %d\n", f->width,
f->height);
return 0;
}
static unsigned int tvp5150_get_hmax(struct v4l2_subdev *sd)
{
struct tvp5150 *decoder = to_tvp5150(sd);
v4l2_std_id std;
/* Calculate height based on current standard */
if (decoder->norm == V4L2_STD_ALL)
std = tvp5150_read_std(sd);
else
std = decoder->norm;
return (std & V4L2_STD_525_60) ?
TVP5150_V_MAX_525_60 : TVP5150_V_MAX_OTHERS;
}
static void tvp5150_set_hw_selection(struct v4l2_subdev *sd,
struct v4l2_rect *rect)
{
struct tvp5150 *decoder = to_tvp5150(sd);
unsigned int hmax = tvp5150_get_hmax(sd);
regmap_write(decoder->regmap, TVP5150_VERT_BLANKING_START, rect->top);
regmap_write(decoder->regmap, TVP5150_VERT_BLANKING_STOP,
rect->top + rect->height - hmax);
regmap_write(decoder->regmap, TVP5150_ACT_VD_CROP_ST_MSB,
rect->left >> TVP5150_CROP_SHIFT);
regmap_write(decoder->regmap, TVP5150_ACT_VD_CROP_ST_LSB,
rect->left | (1 << TVP5150_CROP_SHIFT));
regmap_write(decoder->regmap, TVP5150_ACT_VD_CROP_STP_MSB,
(rect->left + rect->width - TVP5150_MAX_CROP_LEFT) >>
TVP5150_CROP_SHIFT);
regmap_write(decoder->regmap, TVP5150_ACT_VD_CROP_STP_LSB,
rect->left + rect->width - TVP5150_MAX_CROP_LEFT);
}
static int tvp5150_set_selection(struct v4l2_subdev *sd,
struct v4l2_subdev_state *sd_state,
struct v4l2_subdev_selection *sel)
{
struct tvp5150 *decoder = to_tvp5150(sd);
struct v4l2_rect *rect = &sel->r;
struct v4l2_rect *crop;
unsigned int hmax;
if (sel->target != V4L2_SEL_TGT_CROP)
return -EINVAL;
dev_dbg_lvl(sd->dev, 1, debug, "%s left=%d, top=%d, width=%d, height=%d\n",
__func__, rect->left, rect->top, rect->width, rect->height);
/* tvp5150 has some special limits */
rect->left = clamp(rect->left, 0, TVP5150_MAX_CROP_LEFT);
rect->top = clamp(rect->top, 0, TVP5150_MAX_CROP_TOP);
hmax = tvp5150_get_hmax(sd);
/*
* alignments:
* - width = 2 due to UYVY colorspace
* - height, image = no special alignment
*/
v4l_bound_align_image(&rect->width,
TVP5150_H_MAX - TVP5150_MAX_CROP_LEFT - rect->left,
TVP5150_H_MAX - rect->left, 1, &rect->height,
hmax - TVP5150_MAX_CROP_TOP - rect->top,
hmax - rect->top, 0, 0);
if (!IS_ENABLED(CONFIG_VIDEO_V4L2_SUBDEV_API) &&
sel->which == V4L2_SUBDEV_FORMAT_TRY)
return 0;
crop = tvp5150_get_pad_crop(decoder, sd_state, sel->pad, sel->which);
if (IS_ERR(crop))
return PTR_ERR(crop);
/*
* Update output image size if the selection (crop) rectangle size or
* position has been modified.
*/
if (sel->which == V4L2_SUBDEV_FORMAT_ACTIVE &&
!v4l2_rect_equal(rect, crop))
tvp5150_set_hw_selection(sd, rect);
*crop = *rect;
return 0;
}
static int tvp5150_get_selection(struct v4l2_subdev *sd,
struct v4l2_subdev_state *sd_state,
struct v4l2_subdev_selection *sel)
{
struct tvp5150 *decoder = container_of(sd, struct tvp5150, sd);
struct v4l2_rect *crop;
v4l2_std_id std;
switch (sel->target) {
case V4L2_SEL_TGT_CROP_BOUNDS:
sel->r.left = 0;
sel->r.top = 0;
sel->r.width = TVP5150_H_MAX;
/* Calculate height based on current standard */
if (decoder->norm == V4L2_STD_ALL)
std = tvp5150_read_std(sd);
else
std = decoder->norm;
if (std & V4L2_STD_525_60)
sel->r.height = TVP5150_V_MAX_525_60;
else
sel->r.height = TVP5150_V_MAX_OTHERS;
return 0;
case V4L2_SEL_TGT_CROP:
crop = tvp5150_get_pad_crop(decoder, sd_state, sel->pad,
sel->which);
if (IS_ERR(crop))
return PTR_ERR(crop);
sel->r = *crop;
return 0;
default:
return -EINVAL;
}
}
static int tvp5150_get_mbus_config(struct v4l2_subdev *sd,
unsigned int pad,
struct v4l2_mbus_config *cfg)
{
struct tvp5150 *decoder = to_tvp5150(sd);
cfg->type = decoder->mbus_type;
cfg->bus.parallel.flags = V4L2_MBUS_MASTER
| V4L2_MBUS_PCLK_SAMPLE_RISING
| V4L2_MBUS_FIELD_EVEN_LOW
| V4L2_MBUS_DATA_ACTIVE_HIGH;
return 0;
}
/****************************************************************************
V4L2 subdev pad ops
****************************************************************************/
static int tvp5150_init_cfg(struct v4l2_subdev *sd,
struct v4l2_subdev_state *sd_state)
{
struct tvp5150 *decoder = to_tvp5150(sd);
v4l2_std_id std;
/*
* Reset selection to maximum on subdev_open() if autodetection is on
* and a standard change is detected.
*/
if (decoder->norm == V4L2_STD_ALL) {
std = tvp5150_read_std(sd);
if (std != decoder->detected_norm) {
decoder->detected_norm = std;
tvp5150_set_default(std, &decoder->rect);
}
}
return 0;
}
static int tvp5150_enum_mbus_code(struct v4l2_subdev *sd,
struct v4l2_subdev_state *sd_state,
struct v4l2_subdev_mbus_code_enum *code)
{
if (code->pad || code->index)
return -EINVAL;
code->code = TVP5150_MBUS_FMT;
return 0;
}
static int tvp5150_enum_frame_size(struct v4l2_subdev *sd,
struct v4l2_subdev_state *sd_state,
struct v4l2_subdev_frame_size_enum *fse)
{
struct tvp5150 *decoder = to_tvp5150(sd);
if (fse->index >= 8 || fse->code != TVP5150_MBUS_FMT)
return -EINVAL;
fse->code = TVP5150_MBUS_FMT;
fse->min_width = decoder->rect.width;
fse->max_width = decoder->rect.width;
fse->min_height = decoder->rect.height / 2;
fse->max_height = decoder->rect.height / 2;
return 0;
}
/****************************************************************************
* Media entity ops
****************************************************************************/
#if defined(CONFIG_MEDIA_CONTROLLER)
static int tvp5150_set_link(struct media_pad *connector_pad,
struct media_pad *tvp5150_pad, u32 flags)
{
struct media_link *link;
link = media_entity_find_link(connector_pad, tvp5150_pad);
if (!link)
return -EINVAL;
link->flags = flags;
link->reverse->flags = link->flags;
return 0;
}
static int tvp5150_disable_all_input_links(struct tvp5150 *decoder)
{
struct media_pad *connector_pad;
unsigned int i;
int err;
for (i = 0; i < TVP5150_NUM_PADS - 1; i++) {
connector_pad = media_pad_remote_pad_first(&decoder->pads[i]);
if (!connector_pad)
continue;
err = tvp5150_set_link(connector_pad, &decoder->pads[i], 0);
if (err)
return err;
}
return 0;
}
static int tvp5150_s_routing(struct v4l2_subdev *sd, u32 input, u32 output,
u32 config);
static int tvp5150_link_setup(struct media_entity *entity,
const struct media_pad *tvp5150_pad,
const struct media_pad *remote, u32 flags)
{
struct v4l2_subdev *sd = media_entity_to_v4l2_subdev(entity);
struct tvp5150 *decoder = to_tvp5150(sd);
struct media_pad *other_tvp5150_pad =
&decoder->pads[tvp5150_pad->index ^ 1];
struct v4l2_fwnode_connector *v4l2c;
bool is_svideo = false;
unsigned int i;
int err;
/*
* The TVP5150 state is determined by the enabled sink pad link(s).
* Enabling or disabling the source pad link has no effect.
*/
if (tvp5150_pad->flags & MEDIA_PAD_FL_SOURCE)
return 0;
/* Check if the svideo connector should be enabled */
for (i = 0; i < decoder->connectors_num; i++) {
if (remote->entity == &decoder->connectors[i].ent) {
v4l2c = &decoder->connectors[i].base;
is_svideo = v4l2c->type == V4L2_CONN_SVIDEO;
break;
}
}
dev_dbg_lvl(sd->dev, 1, debug, "link setup '%s':%d->'%s':%d[%d]",
remote->entity->name, remote->index,
tvp5150_pad->entity->name, tvp5150_pad->index,
flags & MEDIA_LNK_FL_ENABLED);
if (is_svideo)
dev_dbg_lvl(sd->dev, 1, debug,
"link setup '%s':%d->'%s':%d[%d]",
remote->entity->name, remote->index,
other_tvp5150_pad->entity->name,
other_tvp5150_pad->index,
flags & MEDIA_LNK_FL_ENABLED);
/*
* The TVP5150 has an internal mux which allows the following setup:
*
* comp-connector1 --\
* |---> AIP1A
* /
* svideo-connector -|
* \
* |---> AIP1B
* comp-connector2 --/
*
* We can't rely on user space that the current connector gets disabled
* first before enabling the new connector. Disable all active
* connector links to be on the safe side.
*/
err = tvp5150_disable_all_input_links(decoder);
if (err)
return err;
tvp5150_s_routing(sd, is_svideo ? TVP5150_SVIDEO : tvp5150_pad->index,
flags & MEDIA_LNK_FL_ENABLED ? TVP5150_NORMAL :
TVP5150_BLACK_SCREEN, 0);
if (flags & MEDIA_LNK_FL_ENABLED) {
struct v4l2_fwnode_connector_analog *v4l2ca;
u32 new_norm;
/*
* S-Video connector is conneted to both ports AIP1A and AIP1B.
* Both links must be enabled in one-shot regardless which link
* the user requests.
*/
if (is_svideo) {
err = tvp5150_set_link((struct media_pad *)remote,
other_tvp5150_pad, flags);
if (err)
return err;
}
if (!decoder->connectors_num)
return 0;
/* Update the current connector */
decoder->cur_connector =
container_of(remote, struct tvp5150_connector, pad);
/*
* Do nothing if the new connector supports the same tv-norms as
* the old one.
*/
v4l2ca = &decoder->cur_connector->base.connector.analog;
new_norm = decoder->norm & v4l2ca->sdtv_stds;
if (decoder->norm == new_norm)
return 0;
/*
* Fallback to the new connector tv-norms if we can't find any
* common between the current tv-norm and the new one.
*/
tvp5150_s_std(sd, new_norm ? new_norm : v4l2ca->sdtv_stds);
}
return 0;
}
static const struct media_entity_operations tvp5150_sd_media_ops = {
.link_setup = tvp5150_link_setup,
};
#endif
/****************************************************************************
I2C Command
****************************************************************************/
static int __maybe_unused tvp5150_runtime_suspend(struct device *dev)
{
struct v4l2_subdev *sd = dev_get_drvdata(dev);
struct tvp5150 *decoder = to_tvp5150(sd);
if (decoder->irq)
/* Disable lock interrupt */
return regmap_update_bits(decoder->regmap,
TVP5150_INT_ENABLE_REG_A,
TVP5150_INT_A_LOCK, 0);
return 0;
}
static int __maybe_unused tvp5150_runtime_resume(struct device *dev)
{
struct v4l2_subdev *sd = dev_get_drvdata(dev);
struct tvp5150 *decoder = to_tvp5150(sd);
if (decoder->irq)
/* Enable lock interrupt */
return regmap_update_bits(decoder->regmap,
TVP5150_INT_ENABLE_REG_A,
TVP5150_INT_A_LOCK,
TVP5150_INT_A_LOCK);
return 0;
}
static int tvp5150_s_stream(struct v4l2_subdev *sd, int enable)
{
struct tvp5150 *decoder = to_tvp5150(sd);
unsigned int mask, val = 0;
int ret;
mask = TVP5150_MISC_CTL_YCBCR_OE | TVP5150_MISC_CTL_SYNC_OE |
TVP5150_MISC_CTL_CLOCK_OE;
if (enable) {
ret = pm_runtime_resume_and_get(sd->dev);
if (ret < 0)
return ret;
tvp5150_enable(sd);
/* Enable outputs if decoder is locked */
if (decoder->irq)
val = decoder->lock ? decoder->oe : 0;
else
val = decoder->oe;
v4l2_subdev_notify_event(&decoder->sd, &tvp5150_ev_fmt);
} else {
pm_runtime_put(sd->dev);
}
regmap_update_bits(decoder->regmap, TVP5150_MISC_CTL, mask, val);
return 0;
}
static int tvp5150_s_routing(struct v4l2_subdev *sd,
u32 input, u32 output, u32 config)
{
struct tvp5150 *decoder = to_tvp5150(sd);
decoder->input = input;
decoder->output = output;
if (output == TVP5150_BLACK_SCREEN)
decoder->enable = false;
else
decoder->enable = true;
tvp5150_selmux(sd);
return 0;
}
static int tvp5150_s_raw_fmt(struct v4l2_subdev *sd, struct v4l2_vbi_format *fmt)
{
struct tvp5150 *decoder = to_tvp5150(sd);
/*
* this is for capturing 36 raw vbi lines
* if there's a way to cut off the beginning 2 vbi lines
* with the tvp5150 then the vbi line count could be lowered
* to 17 lines/field again, although I couldn't find a register
* which could do that cropping
*/
if (fmt->sample_format == V4L2_PIX_FMT_GREY)
regmap_write(decoder->regmap, TVP5150_LUMA_PROC_CTL_1, 0x70);
if (fmt->count[0] == 18 && fmt->count[1] == 18) {
regmap_write(decoder->regmap, TVP5150_VERT_BLANKING_START,
0x00);
regmap_write(decoder->regmap, TVP5150_VERT_BLANKING_STOP, 0x01);
}
return 0;
}
static int tvp5150_s_sliced_fmt(struct v4l2_subdev *sd, struct v4l2_sliced_vbi_format *svbi)
{
struct tvp5150 *decoder = to_tvp5150(sd);
int i;
if (svbi->service_set != 0) {
for (i = 0; i <= 23; i++) {
svbi->service_lines[1][i] = 0;
svbi->service_lines[0][i] =
tvp5150_set_vbi(sd, svbi->service_lines[0][i],
0xf0, i, 3);
}
/* Enables FIFO */
regmap_write(decoder->regmap, TVP5150_FIFO_OUT_CTRL, 1);
} else {
/* Disables FIFO*/
regmap_write(decoder->regmap, TVP5150_FIFO_OUT_CTRL, 0);
/* Disable Full Field */
regmap_write(decoder->regmap, TVP5150_FULL_FIELD_ENA, 0);
/* Disable Line modes */
for (i = TVP5150_LINE_MODE_INI; i <= TVP5150_LINE_MODE_END; i++)
regmap_write(decoder->regmap, i, 0xff);
}
return 0;
}
static int tvp5150_g_sliced_fmt(struct v4l2_subdev *sd, struct v4l2_sliced_vbi_format *svbi)
{
int i, mask = 0;
memset(svbi->service_lines, 0, sizeof(svbi->service_lines));
for (i = 0; i <= 23; i++) {
svbi->service_lines[0][i] =
tvp5150_get_vbi(sd, i);
mask |= svbi->service_lines[0][i];
}
svbi->service_set = mask;
return 0;
}
#ifdef CONFIG_VIDEO_ADV_DEBUG
static int tvp5150_g_register(struct v4l2_subdev *sd, struct v4l2_dbg_register *reg)
{
int res;
res = tvp5150_read(sd, reg->reg & 0xff);
if (res < 0) {
dev_err(sd->dev, "%s: failed with error = %d\n", __func__, res);
return res;
}
reg->val = res;
reg->size = 1;
return 0;
}
static int tvp5150_s_register(struct v4l2_subdev *sd, const struct v4l2_dbg_register *reg)
{
struct tvp5150 *decoder = to_tvp5150(sd);
return regmap_write(decoder->regmap, reg->reg & 0xff, reg->val & 0xff);
}
#endif
static int tvp5150_subscribe_event(struct v4l2_subdev *sd, struct v4l2_fh *fh,
struct v4l2_event_subscription *sub)
{
switch (sub->type) {
case V4L2_EVENT_SOURCE_CHANGE:
return v4l2_src_change_event_subdev_subscribe(sd, fh, sub);
case V4L2_EVENT_CTRL:
return v4l2_ctrl_subdev_subscribe_event(sd, fh, sub);
default:
return -EINVAL;
}
}
static int tvp5150_g_tuner(struct v4l2_subdev *sd, struct v4l2_tuner *vt)
{
int status = tvp5150_read(sd, 0x88);
vt->signal = ((status & 0x04) && (status & 0x02)) ? 0xffff : 0x0;
return 0;
}
static int tvp5150_registered(struct v4l2_subdev *sd)
{
#if defined(CONFIG_MEDIA_CONTROLLER)
struct tvp5150 *decoder = to_tvp5150(sd);
unsigned int i;
int ret;
/*
* Setup connector pads and links. Enable the link to the first
* available connector per default.
*/
for (i = 0; i < decoder->connectors_num; i++) {
struct media_entity *con = &decoder->connectors[i].ent;
struct media_pad *pad = &decoder->connectors[i].pad;
struct v4l2_fwnode_connector *v4l2c =
&decoder->connectors[i].base;
struct v4l2_connector_link *link =
v4l2_connector_first_link(v4l2c);
unsigned int port = link->fwnode_link.remote_port;
unsigned int flags = i ? 0 : MEDIA_LNK_FL_ENABLED;
bool is_svideo = v4l2c->type == V4L2_CONN_SVIDEO;
pad->flags = MEDIA_PAD_FL_SOURCE;
ret = media_entity_pads_init(con, 1, pad);
if (ret < 0)
goto err;
ret = media_device_register_entity(sd->v4l2_dev->mdev, con);
if (ret < 0)
goto err;
ret = media_create_pad_link(con, 0, &sd->entity, port, flags);
if (ret < 0)
goto err;
if (is_svideo) {
/*
* Check tvp5150_link_setup() comments for more
* information.
*/
link = v4l2_connector_last_link(v4l2c);
port = link->fwnode_link.remote_port;
ret = media_create_pad_link(con, 0, &sd->entity, port,
flags);
if (ret < 0)
goto err;
}
/* Enable default input. */
if (flags == MEDIA_LNK_FL_ENABLED) {
decoder->input =
is_svideo ? TVP5150_SVIDEO :
port == 0 ? TVP5150_COMPOSITE0 :
TVP5150_COMPOSITE1;
tvp5150_selmux(sd);
decoder->cur_connector = &decoder->connectors[i];
tvp5150_s_std(sd, v4l2c->connector.analog.sdtv_stds);
}
}
return 0;
err:
for (i = 0; i < decoder->connectors_num; i++) {
media_device_unregister_entity(&decoder->connectors[i].ent);
media_entity_cleanup(&decoder->connectors[i].ent);
}
return ret;
#endif
return 0;
}
static int tvp5150_open(struct v4l2_subdev *sd, struct v4l2_subdev_fh *fh)
{
return pm_runtime_resume_and_get(sd->dev);
}
static int tvp5150_close(struct v4l2_subdev *sd, struct v4l2_subdev_fh *fh)
{
pm_runtime_put(sd->dev);
return 0;
}
/* ----------------------------------------------------------------------- */
static const struct v4l2_ctrl_ops tvp5150_ctrl_ops = {
.s_ctrl = tvp5150_s_ctrl,
};
static const struct v4l2_subdev_core_ops tvp5150_core_ops = {
.log_status = tvp5150_log_status,
.reset = tvp5150_reset,
#ifdef CONFIG_VIDEO_ADV_DEBUG
.g_register = tvp5150_g_register,
.s_register = tvp5150_s_register,
#endif
.subscribe_event = tvp5150_subscribe_event,
.unsubscribe_event = v4l2_event_subdev_unsubscribe,
};
static const struct v4l2_subdev_tuner_ops tvp5150_tuner_ops = {
.g_tuner = tvp5150_g_tuner,
};
static const struct v4l2_subdev_video_ops tvp5150_video_ops = {
.s_std = tvp5150_s_std,
.g_std = tvp5150_g_std,
.querystd = tvp5150_querystd,
.s_stream = tvp5150_s_stream,
.s_routing = tvp5150_s_routing,
};
static const struct v4l2_subdev_vbi_ops tvp5150_vbi_ops = {
.g_sliced_vbi_cap = tvp5150_g_sliced_vbi_cap,
.g_sliced_fmt = tvp5150_g_sliced_fmt,
.s_sliced_fmt = tvp5150_s_sliced_fmt,
.s_raw_fmt = tvp5150_s_raw_fmt,
};
static const struct v4l2_subdev_pad_ops tvp5150_pad_ops = {
.init_cfg = tvp5150_init_cfg,
.enum_mbus_code = tvp5150_enum_mbus_code,
.enum_frame_size = tvp5150_enum_frame_size,
.set_fmt = tvp5150_fill_fmt,
.get_fmt = tvp5150_fill_fmt,
.get_selection = tvp5150_get_selection,
.set_selection = tvp5150_set_selection,
.get_mbus_config = tvp5150_get_mbus_config,
};
static const struct v4l2_subdev_ops tvp5150_ops = {
.core = &tvp5150_core_ops,
.tuner = &tvp5150_tuner_ops,
.video = &tvp5150_video_ops,
.vbi = &tvp5150_vbi_ops,
.pad = &tvp5150_pad_ops,
};
static const struct v4l2_subdev_internal_ops tvp5150_internal_ops = {
.registered = tvp5150_registered,
.open = tvp5150_open,
.close = tvp5150_close,
};
/****************************************************************************
I2C Client & Driver
****************************************************************************/
static const struct regmap_range tvp5150_readable_ranges[] = {
{
.range_min = TVP5150_VD_IN_SRC_SEL_1,
.range_max = TVP5150_AUTOSW_MSK,
}, {
.range_min = TVP5150_COLOR_KIL_THSH_CTL,
.range_max = TVP5150_CONF_SHARED_PIN,
}, {
.range_min = TVP5150_ACT_VD_CROP_ST_MSB,
.range_max = TVP5150_HORIZ_SYNC_START,
}, {
.range_min = TVP5150_VERT_BLANKING_START,
.range_max = TVP5150_INTT_CONFIG_REG_B,
}, {
.range_min = TVP5150_VIDEO_STD,
.range_max = TVP5150_VIDEO_STD,
}, {
.range_min = TVP5150_CB_GAIN_FACT,
.range_max = TVP5150_REV_SELECT,
}, {
.range_min = TVP5150_MSB_DEV_ID,
.range_max = TVP5150_STATUS_REG_5,
}, {
.range_min = TVP5150_CC_DATA_INI,
.range_max = TVP5150_TELETEXT_FIL_ENA,
}, {
.range_min = TVP5150_INT_STATUS_REG_A,
.range_max = TVP5150_FIFO_OUT_CTRL,
}, {
.range_min = TVP5150_FULL_FIELD_ENA,
.range_max = TVP5150_FULL_FIELD_MODE_REG,
},
};
static bool tvp5150_volatile_reg(struct device *dev, unsigned int reg)
{
switch (reg) {
case TVP5150_VERT_LN_COUNT_MSB:
case TVP5150_VERT_LN_COUNT_LSB:
case TVP5150_INT_STATUS_REG_A:
case TVP5150_INT_STATUS_REG_B:
case TVP5150_INT_ACTIVE_REG_B:
case TVP5150_STATUS_REG_1:
case TVP5150_STATUS_REG_2:
case TVP5150_STATUS_REG_3:
case TVP5150_STATUS_REG_4:
case TVP5150_STATUS_REG_5:
/* CC, WSS, VPS, VITC data? */
case TVP5150_VBI_FIFO_READ_DATA:
case TVP5150_VDP_STATUS_REG:
case TVP5150_FIFO_WORD_COUNT:
return true;
default:
return false;
}
}
static const struct regmap_access_table tvp5150_readable_table = {
.yes_ranges = tvp5150_readable_ranges,
.n_yes_ranges = ARRAY_SIZE(tvp5150_readable_ranges),
};
static struct regmap_config tvp5150_config = {
.reg_bits = 8,
.val_bits = 8,
.max_register = 0xff,
.cache_type = REGCACHE_RBTREE,
.rd_table = &tvp5150_readable_table,
.volatile_reg = tvp5150_volatile_reg,
};
static int tvp5150_detect_version(struct tvp5150 *core)
{
struct v4l2_subdev *sd = &core->sd;
struct i2c_client *c = v4l2_get_subdevdata(sd);
u8 regs[4];
int res;
/*
* Read consequent registers - TVP5150_MSB_DEV_ID, TVP5150_LSB_DEV_ID,
* TVP5150_ROM_MAJOR_VER, TVP5150_ROM_MINOR_VER
*/
res = regmap_bulk_read(core->regmap, TVP5150_MSB_DEV_ID, regs, 4);
if (res < 0) {
dev_err(&c->dev, "reading ID registers failed: %d\n", res);
return res;
}
core->dev_id = (regs[0] << 8) | regs[1];
core->rom_ver = (regs[2] << 8) | regs[3];
dev_info(sd->dev, "tvp%04x (%u.%u) chip found @ 0x%02x (%s)\n",
core->dev_id, regs[2], regs[3], c->addr << 1,
c->adapter->name);
if (core->dev_id == 0x5150 && core->rom_ver == 0x0321) {
dev_info(sd->dev, "tvp5150a detected.\n");
} else if (core->dev_id == 0x5150 && core->rom_ver == 0x0400) {
dev_info(sd->dev, "tvp5150am1 detected.\n");
/* ITU-T BT.656.4 timing */
regmap_write(core->regmap, TVP5150_REV_SELECT, 0);
} else if (core->dev_id == 0x5151 && core->rom_ver == 0x0100) {
dev_info(sd->dev, "tvp5151 detected.\n");
} else {
dev_info(sd->dev, "*** unknown tvp%04x chip detected.\n",
core->dev_id);
}
return 0;
}
static int tvp5150_init(struct i2c_client *c)
{
struct gpio_desc *pdn_gpio;
struct gpio_desc *reset_gpio;
pdn_gpio = devm_gpiod_get_optional(&c->dev, "pdn", GPIOD_OUT_HIGH);
if (IS_ERR(pdn_gpio))
return PTR_ERR(pdn_gpio);
if (pdn_gpio) {
gpiod_set_value_cansleep(pdn_gpio, 0);
/* Delay time between power supplies active and reset */
msleep(20);
}
reset_gpio = devm_gpiod_get_optional(&c->dev, "reset", GPIOD_OUT_HIGH);
if (IS_ERR(reset_gpio))
return PTR_ERR(reset_gpio);
if (reset_gpio) {
/* RESETB pulse duration */
ndelay(500);
gpiod_set_value_cansleep(reset_gpio, 0);
/* Delay time between end of reset to I2C active */
usleep_range(200, 250);
}
return 0;
}
#if defined(CONFIG_MEDIA_CONTROLLER)
static int tvp5150_mc_init(struct tvp5150 *decoder)
{
struct v4l2_subdev *sd = &decoder->sd;
unsigned int i;
sd->entity.ops = &tvp5150_sd_media_ops;
sd->entity.function = MEDIA_ENT_F_ATV_DECODER;
for (i = 0; i < TVP5150_NUM_PADS - 1; i++) {
decoder->pads[i].flags = MEDIA_PAD_FL_SINK;
decoder->pads[i].sig_type = PAD_SIGNAL_ANALOG;
}
decoder->pads[i].flags = MEDIA_PAD_FL_SOURCE;
decoder->pads[i].sig_type = PAD_SIGNAL_DV;
return media_entity_pads_init(&sd->entity, TVP5150_NUM_PADS,
decoder->pads);
}
#else /* !defined(CONFIG_MEDIA_CONTROLLER) */
static inline int tvp5150_mc_init(struct tvp5150 *decoder)
{
return 0;
}
#endif /* defined(CONFIG_MEDIA_CONTROLLER) */
static int tvp5150_validate_connectors(struct tvp5150 *decoder)
{
struct device *dev = decoder->sd.dev;
struct tvp5150_connector *tvpc;
struct v4l2_fwnode_connector *v4l2c;
unsigned int i;
if (!decoder->connectors_num) {
dev_err(dev, "No valid connector found\n");
return -ENODEV;
}
for (i = 0; i < decoder->connectors_num; i++) {
struct v4l2_connector_link *link0 = NULL;
struct v4l2_connector_link *link1;
tvpc = &decoder->connectors[i];
v4l2c = &tvpc->base;
if (v4l2c->type == V4L2_CONN_COMPOSITE) {
if (v4l2c->nr_of_links != 1) {
dev_err(dev, "Composite: connector needs 1 link\n");
return -EINVAL;
}
link0 = v4l2_connector_first_link(v4l2c);
if (!link0) {
dev_err(dev, "Composite: invalid first link\n");
return -EINVAL;
}
if (link0->fwnode_link.remote_id == 1) {
dev_err(dev, "Composite: invalid endpoint id\n");
return -EINVAL;
}
}
if (v4l2c->type == V4L2_CONN_SVIDEO) {
if (v4l2c->nr_of_links != 2) {
dev_err(dev, "SVideo: connector needs 2 links\n");
return -EINVAL;
}
link0 = v4l2_connector_first_link(v4l2c);
if (!link0) {
dev_err(dev, "SVideo: invalid first link\n");
return -EINVAL;
}
link1 = v4l2_connector_last_link(v4l2c);
if (link0->fwnode_link.remote_port ==
link1->fwnode_link.remote_port) {
dev_err(dev, "SVideo: invalid link setup\n");
return -EINVAL;
}
}
if (!(v4l2c->connector.analog.sdtv_stds & TVP5150_STD_MASK)) {
dev_err(dev, "Unsupported tv-norm on connector %s\n",
v4l2c->name);
return -EINVAL;
}
}
return 0;
}
static int tvp5150_parse_dt(struct tvp5150 *decoder, struct device_node *np)
{
struct device *dev = decoder->sd.dev;
struct v4l2_fwnode_endpoint bus_cfg = {
.bus_type = V4L2_MBUS_UNKNOWN
};
struct device_node *ep_np;
struct tvp5150_connector *tvpc;
struct v4l2_fwnode_connector *v4l2c;
unsigned int flags, ep_num;
unsigned int i;
int ret;
/* At least 1 output and 1 input */
ep_num = of_graph_get_endpoint_count(np);
if (ep_num < 2 || ep_num > 5) {
dev_err(dev, "At least 1 input and 1 output must be connected to the device.\n");
return -EINVAL;
}
/* Layout if all connectors are used:
*
* tvp-5150 port@0 (AIP1A)
* endpoint@0 -----------> Comp0-Con port
* endpoint@1 --------+--> Svideo-Con port
* tvp-5150 port@1 (AIP1B) |
* endpoint@1 --------+
* endpoint@0 -----------> Comp1-Con port
* tvp-5150 port@2
* endpoint (video bitstream output at YOUT[0-7] parallel bus)
*/
for_each_endpoint_of_node(np, ep_np) {
struct fwnode_handle *ep_fwnode = of_fwnode_handle(ep_np);
unsigned int next_connector = decoder->connectors_num;
struct of_endpoint ep;
of_graph_parse_endpoint(ep_np, &ep);
if (ep.port > 1 || ep.id > 1) {
dev_dbg(dev, "Ignore connector on port@%u/ep@%u\n",
ep.port, ep.id);
continue;
}
tvpc = &decoder->connectors[next_connector];
v4l2c = &tvpc->base;
if (ep.port == 0 || (ep.port == 1 && ep.id == 0)) {
ret = v4l2_fwnode_connector_parse(ep_fwnode, v4l2c);
if (ret)
goto err_put;
ret = v4l2_fwnode_connector_add_link(ep_fwnode, v4l2c);
if (ret)
goto err_put;
decoder->connectors_num++;
} else {
/* Adding the 2nd svideo link */
for (i = 0; i < TVP5150_MAX_CONNECTORS; i++) {
tvpc = &decoder->connectors[i];
v4l2c = &tvpc->base;
if (v4l2c->type == V4L2_CONN_SVIDEO)
break;
}
ret = v4l2_fwnode_connector_add_link(ep_fwnode, v4l2c);
if (ret)
goto err_put;
}
}
ret = tvp5150_validate_connectors(decoder);
if (ret)
goto err_free;
for (i = 0; i < decoder->connectors_num; i++) {
tvpc = &decoder->connectors[i];
v4l2c = &tvpc->base;
tvpc->ent.flags = MEDIA_ENT_FL_CONNECTOR;
tvpc->ent.function = v4l2c->type == V4L2_CONN_SVIDEO ?
MEDIA_ENT_F_CONN_SVIDEO : MEDIA_ENT_F_CONN_COMPOSITE;
tvpc->ent.name = devm_kasprintf(dev, GFP_KERNEL, "%s %s",
v4l2c->name, v4l2c->label ?
v4l2c->label : "");
if (!tvpc->ent.name) {
ret = -ENOMEM;
goto err_free;
}
}
ep_np = of_graph_get_endpoint_by_regs(np, TVP5150_PAD_VID_OUT, 0);
if (!ep_np) {
ret = -EINVAL;
dev_err(dev, "Error no output endpoint available\n");
goto err_free;
}
ret = v4l2_fwnode_endpoint_parse(of_fwnode_handle(ep_np), &bus_cfg);
of_node_put(ep_np);
if (ret)
goto err_free;
flags = bus_cfg.bus.parallel.flags;
if (bus_cfg.bus_type == V4L2_MBUS_PARALLEL &&
!(flags & V4L2_MBUS_HSYNC_ACTIVE_HIGH &&
flags & V4L2_MBUS_VSYNC_ACTIVE_HIGH &&
flags & V4L2_MBUS_FIELD_EVEN_LOW)) {
ret = -EINVAL;
goto err_free;
}
decoder->mbus_type = bus_cfg.bus_type;
return 0;
err_put:
of_node_put(ep_np);
err_free:
for (i = 0; i < TVP5150_MAX_CONNECTORS; i++)
v4l2_fwnode_connector_free(&decoder->connectors[i].base);
return ret;
}
static const char * const tvp5150_test_patterns[2] = {
"Disabled",
"Black screen"
};
static int tvp5150_probe(struct i2c_client *c)
{
struct tvp5150 *core;
struct v4l2_subdev *sd;
struct device_node *np = c->dev.of_node;
struct regmap *map;
unsigned int i;
int res;
/* Check if the adapter supports the needed features */
if (!i2c_check_functionality(c->adapter,
I2C_FUNC_SMBUS_READ_BYTE | I2C_FUNC_SMBUS_WRITE_BYTE_DATA))
return -EIO;
res = tvp5150_init(c);
if (res)
return res;
core = devm_kzalloc(&c->dev, sizeof(*core), GFP_KERNEL);
if (!core)
return -ENOMEM;
map = devm_regmap_init_i2c(c, &tvp5150_config);
if (IS_ERR(map))
return PTR_ERR(map);
core->regmap = map;
sd = &core->sd;
v4l2_i2c_subdev_init(sd, c, &tvp5150_ops);
sd->internal_ops = &tvp5150_internal_ops;
sd->flags |= V4L2_SUBDEV_FL_HAS_DEVNODE | V4L2_SUBDEV_FL_HAS_EVENTS;
if (IS_ENABLED(CONFIG_OF) && np) {
res = tvp5150_parse_dt(core, np);
if (res) {
dev_err(sd->dev, "DT parsing error: %d\n", res);
return res;
}
} else {
/* Default to BT.656 embedded sync */
core->mbus_type = V4L2_MBUS_BT656;
}
res = tvp5150_mc_init(core);
if (res)
return res;
res = tvp5150_detect_version(core);
if (res < 0)
return res;
/*
* Iterate over all available connectors in case they are supported and
* successfully parsed. Fallback to default autodetect in case they
* aren't supported.
*/
for (i = 0; i < core->connectors_num; i++) {
struct v4l2_fwnode_connector *v4l2c;
v4l2c = &core->connectors[i].base;
core->norm |= v4l2c->connector.analog.sdtv_stds;
}
if (!core->connectors_num)
core->norm = V4L2_STD_ALL;
core->detected_norm = V4L2_STD_UNKNOWN;
core->input = TVP5150_COMPOSITE1;
core->enable = true;
v4l2_ctrl_handler_init(&core->hdl, 5);
v4l2_ctrl_new_std(&core->hdl, &tvp5150_ctrl_ops,
V4L2_CID_BRIGHTNESS, 0, 255, 1, 128);
v4l2_ctrl_new_std(&core->hdl, &tvp5150_ctrl_ops,
V4L2_CID_CONTRAST, 0, 255, 1, 128);
v4l2_ctrl_new_std(&core->hdl, &tvp5150_ctrl_ops,
V4L2_CID_SATURATION, 0, 255, 1, 128);
v4l2_ctrl_new_std(&core->hdl, &tvp5150_ctrl_ops,
V4L2_CID_HUE, -128, 127, 1, 0);
v4l2_ctrl_new_std(&core->hdl, &tvp5150_ctrl_ops,
V4L2_CID_PIXEL_RATE, 27000000,
27000000, 1, 27000000);
v4l2_ctrl_new_std_menu_items(&core->hdl, &tvp5150_ctrl_ops,
V4L2_CID_TEST_PATTERN,
ARRAY_SIZE(tvp5150_test_patterns) - 1,
0, 0, tvp5150_test_patterns);
sd->ctrl_handler = &core->hdl;
if (core->hdl.error) {
res = core->hdl.error;
goto err;
}
tvp5150_set_default(tvp5150_read_std(sd), &core->rect);
core->irq = c->irq;
tvp5150_reset(sd, 0); /* Calls v4l2_ctrl_handler_setup() */
if (c->irq) {
res = devm_request_threaded_irq(&c->dev, c->irq, NULL,
tvp5150_isr, IRQF_TRIGGER_HIGH |
IRQF_ONESHOT, "tvp5150", core);
if (res)
goto err;
}
res = v4l2_async_register_subdev(sd);
if (res < 0)
goto err;
if (debug > 1)
tvp5150_log_status(sd);
pm_runtime_set_active(&c->dev);
pm_runtime_enable(&c->dev);
pm_runtime_idle(&c->dev);
return 0;
err:
v4l2_ctrl_handler_free(&core->hdl);
return res;
}
static void tvp5150_remove(struct i2c_client *c)
{
struct v4l2_subdev *sd = i2c_get_clientdata(c);
struct tvp5150 *decoder = to_tvp5150(sd);
unsigned int i;
dev_dbg_lvl(sd->dev, 1, debug,
"tvp5150.c: removing tvp5150 adapter on address 0x%x\n",
c->addr << 1);
for (i = 0; i < decoder->connectors_num; i++)
v4l2_fwnode_connector_free(&decoder->connectors[i].base);
for (i = 0; i < decoder->connectors_num; i++) {
media_device_unregister_entity(&decoder->connectors[i].ent);
media_entity_cleanup(&decoder->connectors[i].ent);
}
v4l2_async_unregister_subdev(sd);
v4l2_ctrl_handler_free(&decoder->hdl);
pm_runtime_disable(&c->dev);
pm_runtime_set_suspended(&c->dev);
}
/* ----------------------------------------------------------------------- */
static const struct dev_pm_ops tvp5150_pm_ops = {
SET_RUNTIME_PM_OPS(tvp5150_runtime_suspend,
tvp5150_runtime_resume,
NULL)
};
static const struct i2c_device_id tvp5150_id[] = {
{ "tvp5150", 0 },
{ }
};
MODULE_DEVICE_TABLE(i2c, tvp5150_id);
#if IS_ENABLED(CONFIG_OF)
static const struct of_device_id tvp5150_of_match[] = {
{ .compatible = "ti,tvp5150", },
{ /* sentinel */ },
};
MODULE_DEVICE_TABLE(of, tvp5150_of_match);
#endif
static struct i2c_driver tvp5150_driver = {
.driver = {
.of_match_table = of_match_ptr(tvp5150_of_match),
.name = "tvp5150",
.pm = &tvp5150_pm_ops,
},
.probe = tvp5150_probe,
.remove = tvp5150_remove,
.id_table = tvp5150_id,
};
module_i2c_driver(tvp5150_driver);
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