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linux-next/drivers/media/video/tvp514x.c
Hans Verkuil 10afbef15e V4L/DVB (10698): v4l2-common: remove v4l2_ctrl_query_fill_std 
The v4l2_ctrl_query_fill_std() function wasn't one the best idea I ever had.
It doesn't add anything valuable that cannot be expressed equally well with
v4l2_ctrl_query_fill and only adds overhead.

Replace it with v4l2_ctrl_query_fill() everywhere it is used and remove it
from v4l2_common.c.

Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2009-03-30 12:42:54 -03:00

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/*
* drivers/media/video/tvp514x.c
*
* TI TVP5146/47 decoder driver
*
* Copyright (C) 2008 Texas Instruments Inc
* Author: Vaibhav Hiremath <hvaibhav@ti.com>
*
* Contributors:
* Sivaraj R <sivaraj@ti.com>
* Brijesh R Jadav <brijesh.j@ti.com>
* Hardik Shah <hardik.shah@ti.com>
* Manjunath Hadli <mrh@ti.com>
* Karicheri Muralidharan <m-karicheri2@ti.com>
*
* This package is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 as
* published by the Free Software Foundation.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*
*/
#include <linux/i2c.h>
#include <linux/delay.h>
#include <linux/videodev2.h>
#include <media/v4l2-int-device.h>
#include <media/tvp514x.h>
#include "tvp514x_regs.h"
/* Module Name */
#define TVP514X_MODULE_NAME "tvp514x"
/* Private macros for TVP */
#define I2C_RETRY_COUNT (5)
#define LOCK_RETRY_COUNT (5)
#define LOCK_RETRY_DELAY (200)
/* Debug functions */
static int debug;
module_param(debug, bool, 0644);
MODULE_PARM_DESC(debug, "Debug level (0-1)");
#define dump_reg(client, reg, val) \
do { \
val = tvp514x_read_reg(client, reg); \
v4l_info(client, "Reg(0x%.2X): 0x%.2X\n", reg, val); \
} while (0)
/**
* enum tvp514x_std - enum for supported standards
*/
enum tvp514x_std {
STD_NTSC_MJ = 0,
STD_PAL_BDGHIN,
STD_INVALID
};
/**
* enum tvp514x_state - enum for different decoder states
*/
enum tvp514x_state {
STATE_NOT_DETECTED,
STATE_DETECTED
};
/**
* struct tvp514x_std_info - Structure to store standard informations
* @width: Line width in pixels
* @height:Number of active lines
* @video_std: Value to write in REG_VIDEO_STD register
* @standard: v4l2 standard structure information
*/
struct tvp514x_std_info {
unsigned long width;
unsigned long height;
u8 video_std;
struct v4l2_standard standard;
};
static struct tvp514x_reg tvp514x_reg_list_default[0x40];
/**
* struct tvp514x_decoder - TVP5146/47 decoder object
* @v4l2_int_device: Slave handle
* @tvp514x_slave: Slave pointer which is used by @v4l2_int_device
* @tvp514x_regs: copy of hw's regs with preset values.
* @pdata: Board specific
* @client: I2C client data
* @id: Entry from I2C table
* @ver: Chip version
* @state: TVP5146/47 decoder state - detected or not-detected
* @pix: Current pixel format
* @num_fmts: Number of formats
* @fmt_list: Format list
* @current_std: Current standard
* @num_stds: Number of standards
* @std_list: Standards list
* @route: input and output routing at chip level
*/
struct tvp514x_decoder {
struct v4l2_int_device v4l2_int_device;
struct v4l2_int_slave tvp514x_slave;
struct tvp514x_reg tvp514x_regs[ARRAY_SIZE(tvp514x_reg_list_default)];
const struct tvp514x_platform_data *pdata;
struct i2c_client *client;
struct i2c_device_id *id;
int ver;
enum tvp514x_state state;
struct v4l2_pix_format pix;
int num_fmts;
const struct v4l2_fmtdesc *fmt_list;
enum tvp514x_std current_std;
int num_stds;
struct tvp514x_std_info *std_list;
struct v4l2_routing route;
};
/* TVP514x default register values */
static struct tvp514x_reg tvp514x_reg_list_default[] = {
{TOK_WRITE, REG_INPUT_SEL, 0x05}, /* Composite selected */
{TOK_WRITE, REG_AFE_GAIN_CTRL, 0x0F},
{TOK_WRITE, REG_VIDEO_STD, 0x00}, /* Auto mode */
{TOK_WRITE, REG_OPERATION_MODE, 0x00},
{TOK_SKIP, REG_AUTOSWITCH_MASK, 0x3F},
{TOK_WRITE, REG_COLOR_KILLER, 0x10},
{TOK_WRITE, REG_LUMA_CONTROL1, 0x00},
{TOK_WRITE, REG_LUMA_CONTROL2, 0x00},
{TOK_WRITE, REG_LUMA_CONTROL3, 0x02},
{TOK_WRITE, REG_BRIGHTNESS, 0x80},
{TOK_WRITE, REG_CONTRAST, 0x80},
{TOK_WRITE, REG_SATURATION, 0x80},
{TOK_WRITE, REG_HUE, 0x00},
{TOK_WRITE, REG_CHROMA_CONTROL1, 0x00},
{TOK_WRITE, REG_CHROMA_CONTROL2, 0x0E},
{TOK_SKIP, 0x0F, 0x00}, /* Reserved */
{TOK_WRITE, REG_COMP_PR_SATURATION, 0x80},
{TOK_WRITE, REG_COMP_Y_CONTRAST, 0x80},
{TOK_WRITE, REG_COMP_PB_SATURATION, 0x80},
{TOK_SKIP, 0x13, 0x00}, /* Reserved */
{TOK_WRITE, REG_COMP_Y_BRIGHTNESS, 0x80},
{TOK_SKIP, 0x15, 0x00}, /* Reserved */
{TOK_SKIP, REG_AVID_START_PIXEL_LSB, 0x55}, /* NTSC timing */
{TOK_SKIP, REG_AVID_START_PIXEL_MSB, 0x00},
{TOK_SKIP, REG_AVID_STOP_PIXEL_LSB, 0x25},
{TOK_SKIP, REG_AVID_STOP_PIXEL_MSB, 0x03},
{TOK_SKIP, REG_HSYNC_START_PIXEL_LSB, 0x00}, /* NTSC timing */
{TOK_SKIP, REG_HSYNC_START_PIXEL_MSB, 0x00},
{TOK_SKIP, REG_HSYNC_STOP_PIXEL_LSB, 0x40},
{TOK_SKIP, REG_HSYNC_STOP_PIXEL_MSB, 0x00},
{TOK_SKIP, REG_VSYNC_START_LINE_LSB, 0x04}, /* NTSC timing */
{TOK_SKIP, REG_VSYNC_START_LINE_MSB, 0x00},
{TOK_SKIP, REG_VSYNC_STOP_LINE_LSB, 0x07},
{TOK_SKIP, REG_VSYNC_STOP_LINE_MSB, 0x00},
{TOK_SKIP, REG_VBLK_START_LINE_LSB, 0x01}, /* NTSC timing */
{TOK_SKIP, REG_VBLK_START_LINE_MSB, 0x00},
{TOK_SKIP, REG_VBLK_STOP_LINE_LSB, 0x15},
{TOK_SKIP, REG_VBLK_STOP_LINE_MSB, 0x00},
{TOK_SKIP, 0x26, 0x00}, /* Reserved */
{TOK_SKIP, 0x27, 0x00}, /* Reserved */
{TOK_SKIP, REG_FAST_SWTICH_CONTROL, 0xCC},
{TOK_SKIP, 0x29, 0x00}, /* Reserved */
{TOK_SKIP, REG_FAST_SWTICH_SCART_DELAY, 0x00},
{TOK_SKIP, 0x2B, 0x00}, /* Reserved */
{TOK_SKIP, REG_SCART_DELAY, 0x00},
{TOK_SKIP, REG_CTI_DELAY, 0x00},
{TOK_SKIP, REG_CTI_CONTROL, 0x00},
{TOK_SKIP, 0x2F, 0x00}, /* Reserved */
{TOK_SKIP, 0x30, 0x00}, /* Reserved */
{TOK_SKIP, 0x31, 0x00}, /* Reserved */
{TOK_WRITE, REG_SYNC_CONTROL, 0x00}, /* HS, VS active high */
{TOK_WRITE, REG_OUTPUT_FORMATTER1, 0x00}, /* 10-bit BT.656 */
{TOK_WRITE, REG_OUTPUT_FORMATTER2, 0x11}, /* Enable clk & data */
{TOK_WRITE, REG_OUTPUT_FORMATTER3, 0xEE}, /* Enable AVID & FLD */
{TOK_WRITE, REG_OUTPUT_FORMATTER4, 0xAF}, /* Enable VS & HS */
{TOK_WRITE, REG_OUTPUT_FORMATTER5, 0xFF},
{TOK_WRITE, REG_OUTPUT_FORMATTER6, 0xFF},
{TOK_WRITE, REG_CLEAR_LOST_LOCK, 0x01}, /* Clear status */
{TOK_TERM, 0, 0},
};
/* List of image formats supported by TVP5146/47 decoder
* Currently we are using 8 bit mode only, but can be
* extended to 10/20 bit mode.
*/
static const struct v4l2_fmtdesc tvp514x_fmt_list[] = {
{
.index = 0,
.type = V4L2_BUF_TYPE_VIDEO_CAPTURE,
.flags = 0,
.description = "8-bit UYVY 4:2:2 Format",
.pixelformat = V4L2_PIX_FMT_UYVY,
},
};
/*
* Supported standards -
*
* Currently supports two standards only, need to add support for rest of the
* modes, like SECAM, etc...
*/
static struct tvp514x_std_info tvp514x_std_list[] = {
/* Standard: STD_NTSC_MJ */
[STD_NTSC_MJ] = {
.width = NTSC_NUM_ACTIVE_PIXELS,
.height = NTSC_NUM_ACTIVE_LINES,
.video_std = VIDEO_STD_NTSC_MJ_BIT,
.standard = {
.index = 0,
.id = V4L2_STD_NTSC,
.name = "NTSC",
.frameperiod = {1001, 30000},
.framelines = 525
},
/* Standard: STD_PAL_BDGHIN */
},
[STD_PAL_BDGHIN] = {
.width = PAL_NUM_ACTIVE_PIXELS,
.height = PAL_NUM_ACTIVE_LINES,
.video_std = VIDEO_STD_PAL_BDGHIN_BIT,
.standard = {
.index = 1,
.id = V4L2_STD_PAL,
.name = "PAL",
.frameperiod = {1, 25},
.framelines = 625
},
},
/* Standard: need to add for additional standard */
};
/*
* Control structure for Auto Gain
* This is temporary data, will get replaced once
* v4l2_ctrl_query_fill supports it.
*/
static const struct v4l2_queryctrl tvp514x_autogain_ctrl = {
.id = V4L2_CID_AUTOGAIN,
.name = "Gain, Automatic",
.type = V4L2_CTRL_TYPE_BOOLEAN,
.minimum = 0,
.maximum = 1,
.step = 1,
.default_value = 1,
};
/*
* Read a value from a register in an TVP5146/47 decoder device.
* Returns value read if successful, or non-zero (-1) otherwise.
*/
static int tvp514x_read_reg(struct i2c_client *client, u8 reg)
{
int err;
int retry = 0;
read_again:
err = i2c_smbus_read_byte_data(client, reg);
if (err == -1) {
if (retry <= I2C_RETRY_COUNT) {
v4l_warn(client, "Read: retry ... %d\n", retry);
retry++;
msleep_interruptible(10);
goto read_again;
}
}
return err;
}
/*
* Write a value to a register in an TVP5146/47 decoder device.
* Returns zero if successful, or non-zero otherwise.
*/
static int tvp514x_write_reg(struct i2c_client *client, u8 reg, u8 val)
{
int err;
int retry = 0;
write_again:
err = i2c_smbus_write_byte_data(client, reg, val);
if (err) {
if (retry <= I2C_RETRY_COUNT) {
v4l_warn(client, "Write: retry ... %d\n", retry);
retry++;
msleep_interruptible(10);
goto write_again;
}
}
return err;
}
/*
* tvp514x_write_regs : Initializes a list of TVP5146/47 registers
* if token is TOK_TERM, then entire write operation terminates
* if token is TOK_DELAY, then a delay of 'val' msec is introduced
* if token is TOK_SKIP, then the register write is skipped
* if token is TOK_WRITE, then the register write is performed
*
* reglist - list of registers to be written
* Returns zero if successful, or non-zero otherwise.
*/
static int tvp514x_write_regs(struct i2c_client *client,
const struct tvp514x_reg reglist[])
{
int err;
const struct tvp514x_reg *next = reglist;
for (; next->token != TOK_TERM; next++) {
if (next->token == TOK_DELAY) {
msleep(next->val);
continue;
}
if (next->token == TOK_SKIP)
continue;
err = tvp514x_write_reg(client, next->reg, (u8) next->val);
if (err) {
v4l_err(client, "Write failed. Err[%d]\n", err);
return err;
}
}
return 0;
}
/*
* tvp514x_get_current_std:
* Returns the current standard detected by TVP5146/47
*/
static enum tvp514x_std tvp514x_get_current_std(struct tvp514x_decoder
*decoder)
{
u8 std, std_status;
std = tvp514x_read_reg(decoder->client, REG_VIDEO_STD);
if ((std & VIDEO_STD_MASK) == VIDEO_STD_AUTO_SWITCH_BIT) {
/* use the standard status register */
std_status = tvp514x_read_reg(decoder->client,
REG_VIDEO_STD_STATUS);
} else
std_status = std; /* use the standard register itself */
switch (std_status & VIDEO_STD_MASK) {
case VIDEO_STD_NTSC_MJ_BIT:
return STD_NTSC_MJ;
case VIDEO_STD_PAL_BDGHIN_BIT:
return STD_PAL_BDGHIN;
default:
return STD_INVALID;
}
return STD_INVALID;
}
/*
* TVP5146/47 register dump function
*/
static void tvp514x_reg_dump(struct tvp514x_decoder *decoder)
{
u8 value;
dump_reg(decoder->client, REG_INPUT_SEL, value);
dump_reg(decoder->client, REG_AFE_GAIN_CTRL, value);
dump_reg(decoder->client, REG_VIDEO_STD, value);
dump_reg(decoder->client, REG_OPERATION_MODE, value);
dump_reg(decoder->client, REG_COLOR_KILLER, value);
dump_reg(decoder->client, REG_LUMA_CONTROL1, value);
dump_reg(decoder->client, REG_LUMA_CONTROL2, value);
dump_reg(decoder->client, REG_LUMA_CONTROL3, value);
dump_reg(decoder->client, REG_BRIGHTNESS, value);
dump_reg(decoder->client, REG_CONTRAST, value);
dump_reg(decoder->client, REG_SATURATION, value);
dump_reg(decoder->client, REG_HUE, value);
dump_reg(decoder->client, REG_CHROMA_CONTROL1, value);
dump_reg(decoder->client, REG_CHROMA_CONTROL2, value);
dump_reg(decoder->client, REG_COMP_PR_SATURATION, value);
dump_reg(decoder->client, REG_COMP_Y_CONTRAST, value);
dump_reg(decoder->client, REG_COMP_PB_SATURATION, value);
dump_reg(decoder->client, REG_COMP_Y_BRIGHTNESS, value);
dump_reg(decoder->client, REG_AVID_START_PIXEL_LSB, value);
dump_reg(decoder->client, REG_AVID_START_PIXEL_MSB, value);
dump_reg(decoder->client, REG_AVID_STOP_PIXEL_LSB, value);
dump_reg(decoder->client, REG_AVID_STOP_PIXEL_MSB, value);
dump_reg(decoder->client, REG_HSYNC_START_PIXEL_LSB, value);
dump_reg(decoder->client, REG_HSYNC_START_PIXEL_MSB, value);
dump_reg(decoder->client, REG_HSYNC_STOP_PIXEL_LSB, value);
dump_reg(decoder->client, REG_HSYNC_STOP_PIXEL_MSB, value);
dump_reg(decoder->client, REG_VSYNC_START_LINE_LSB, value);
dump_reg(decoder->client, REG_VSYNC_START_LINE_MSB, value);
dump_reg(decoder->client, REG_VSYNC_STOP_LINE_LSB, value);
dump_reg(decoder->client, REG_VSYNC_STOP_LINE_MSB, value);
dump_reg(decoder->client, REG_VBLK_START_LINE_LSB, value);
dump_reg(decoder->client, REG_VBLK_START_LINE_MSB, value);
dump_reg(decoder->client, REG_VBLK_STOP_LINE_LSB, value);
dump_reg(decoder->client, REG_VBLK_STOP_LINE_MSB, value);
dump_reg(decoder->client, REG_SYNC_CONTROL, value);
dump_reg(decoder->client, REG_OUTPUT_FORMATTER1, value);
dump_reg(decoder->client, REG_OUTPUT_FORMATTER2, value);
dump_reg(decoder->client, REG_OUTPUT_FORMATTER3, value);
dump_reg(decoder->client, REG_OUTPUT_FORMATTER4, value);
dump_reg(decoder->client, REG_OUTPUT_FORMATTER5, value);
dump_reg(decoder->client, REG_OUTPUT_FORMATTER6, value);
dump_reg(decoder->client, REG_CLEAR_LOST_LOCK, value);
}
/*
* Configure the TVP5146/47 with the current register settings
* Returns zero if successful, or non-zero otherwise.
*/
static int tvp514x_configure(struct tvp514x_decoder *decoder)
{
int err;
/* common register initialization */
err =
tvp514x_write_regs(decoder->client, decoder->tvp514x_regs);
if (err)
return err;
if (debug)
tvp514x_reg_dump(decoder);
return 0;
}
/*
* Detect if an tvp514x is present, and if so which revision.
* A device is considered to be detected if the chip ID (LSB and MSB)
* registers match the expected values.
* Any value of the rom version register is accepted.
* Returns ENODEV error number if no device is detected, or zero
* if a device is detected.
*/
static int tvp514x_detect(struct tvp514x_decoder *decoder)
{
u8 chip_id_msb, chip_id_lsb, rom_ver;
chip_id_msb = tvp514x_read_reg(decoder->client, REG_CHIP_ID_MSB);
chip_id_lsb = tvp514x_read_reg(decoder->client, REG_CHIP_ID_LSB);
rom_ver = tvp514x_read_reg(decoder->client, REG_ROM_VERSION);
v4l_dbg(1, debug, decoder->client,
"chip id detected msb:0x%x lsb:0x%x rom version:0x%x\n",
chip_id_msb, chip_id_lsb, rom_ver);
if ((chip_id_msb != TVP514X_CHIP_ID_MSB)
|| ((chip_id_lsb != TVP5146_CHIP_ID_LSB)
&& (chip_id_lsb != TVP5147_CHIP_ID_LSB))) {
/* We didn't read the values we expected, so this must not be
* an TVP5146/47.
*/
v4l_err(decoder->client,
"chip id mismatch msb:0x%x lsb:0x%x\n",
chip_id_msb, chip_id_lsb);
return -ENODEV;
}
decoder->ver = rom_ver;
decoder->state = STATE_DETECTED;
v4l_info(decoder->client,
"%s found at 0x%x (%s)\n", decoder->client->name,
decoder->client->addr << 1,
decoder->client->adapter->name);
return 0;
}
/*
* Following are decoder interface functions implemented by
* TVP5146/47 decoder driver.
*/
/**
* ioctl_querystd - V4L2 decoder interface handler for VIDIOC_QUERYSTD ioctl
* @s: pointer to standard V4L2 device structure
* @std_id: standard V4L2 std_id ioctl enum
*
* Returns the current standard detected by TVP5146/47. If no active input is
* detected, returns -EINVAL
*/
static int ioctl_querystd(struct v4l2_int_device *s, v4l2_std_id *std_id)
{
struct tvp514x_decoder *decoder = s->priv;
enum tvp514x_std current_std;
enum tvp514x_input input_sel;
u8 sync_lock_status, lock_mask;
if (std_id == NULL)
return -EINVAL;
/* get the current standard */
current_std = tvp514x_get_current_std(decoder);
if (current_std == STD_INVALID)
return -EINVAL;
input_sel = decoder->route.input;
switch (input_sel) {
case INPUT_CVBS_VI1A:
case INPUT_CVBS_VI1B:
case INPUT_CVBS_VI1C:
case INPUT_CVBS_VI2A:
case INPUT_CVBS_VI2B:
case INPUT_CVBS_VI2C:
case INPUT_CVBS_VI3A:
case INPUT_CVBS_VI3B:
case INPUT_CVBS_VI3C:
case INPUT_CVBS_VI4A:
lock_mask = STATUS_CLR_SUBCAR_LOCK_BIT |
STATUS_HORZ_SYNC_LOCK_BIT |
STATUS_VIRT_SYNC_LOCK_BIT;
break;
case INPUT_SVIDEO_VI2A_VI1A:
case INPUT_SVIDEO_VI2B_VI1B:
case INPUT_SVIDEO_VI2C_VI1C:
case INPUT_SVIDEO_VI2A_VI3A:
case INPUT_SVIDEO_VI2B_VI3B:
case INPUT_SVIDEO_VI2C_VI3C:
case INPUT_SVIDEO_VI4A_VI1A:
case INPUT_SVIDEO_VI4A_VI1B:
case INPUT_SVIDEO_VI4A_VI1C:
case INPUT_SVIDEO_VI4A_VI3A:
case INPUT_SVIDEO_VI4A_VI3B:
case INPUT_SVIDEO_VI4A_VI3C:
lock_mask = STATUS_HORZ_SYNC_LOCK_BIT |
STATUS_VIRT_SYNC_LOCK_BIT;
break;
/*Need to add other interfaces*/
default:
return -EINVAL;
}
/* check whether signal is locked */
sync_lock_status = tvp514x_read_reg(decoder->client, REG_STATUS1);
if (lock_mask != (sync_lock_status & lock_mask))
return -EINVAL; /* No input detected */
decoder->current_std = current_std;
*std_id = decoder->std_list[current_std].standard.id;
v4l_dbg(1, debug, decoder->client, "Current STD: %s",
decoder->std_list[current_std].standard.name);
return 0;
}
/**
* ioctl_s_std - V4L2 decoder interface handler for VIDIOC_S_STD ioctl
* @s: pointer to standard V4L2 device structure
* @std_id: standard V4L2 v4l2_std_id ioctl enum
*
* If std_id is supported, sets the requested standard. Otherwise, returns
* -EINVAL
*/
static int ioctl_s_std(struct v4l2_int_device *s, v4l2_std_id *std_id)
{
struct tvp514x_decoder *decoder = s->priv;
int err, i;
if (std_id == NULL)
return -EINVAL;
for (i = 0; i < decoder->num_stds; i++)
if (*std_id & decoder->std_list[i].standard.id)
break;
if ((i == decoder->num_stds) || (i == STD_INVALID))
return -EINVAL;
err = tvp514x_write_reg(decoder->client, REG_VIDEO_STD,
decoder->std_list[i].video_std);
if (err)
return err;
decoder->current_std = i;
decoder->tvp514x_regs[REG_VIDEO_STD].val =
decoder->std_list[i].video_std;
v4l_dbg(1, debug, decoder->client, "Standard set to: %s",
decoder->std_list[i].standard.name);
return 0;
}
/**
* ioctl_s_routing - V4L2 decoder interface handler for VIDIOC_S_INPUT ioctl
* @s: pointer to standard V4L2 device structure
* @index: number of the input
*
* If index is valid, selects the requested input. Otherwise, returns -EINVAL if
* the input is not supported or there is no active signal present in the
* selected input.
*/
static int ioctl_s_routing(struct v4l2_int_device *s,
struct v4l2_routing *route)
{
struct tvp514x_decoder *decoder = s->priv;
int err;
enum tvp514x_input input_sel;
enum tvp514x_output output_sel;
enum tvp514x_std current_std = STD_INVALID;
u8 sync_lock_status, lock_mask;
int try_count = LOCK_RETRY_COUNT;
if ((!route) || (route->input >= INPUT_INVALID) ||
(route->output >= OUTPUT_INVALID))
return -EINVAL; /* Index out of bound */
input_sel = route->input;
output_sel = route->output;
err = tvp514x_write_reg(decoder->client, REG_INPUT_SEL, input_sel);
if (err)
return err;
output_sel |= tvp514x_read_reg(decoder->client,
REG_OUTPUT_FORMATTER1) & 0x7;
err = tvp514x_write_reg(decoder->client, REG_OUTPUT_FORMATTER1,
output_sel);
if (err)
return err;
decoder->tvp514x_regs[REG_INPUT_SEL].val = input_sel;
decoder->tvp514x_regs[REG_OUTPUT_FORMATTER1].val = output_sel;
/* Clear status */
msleep(LOCK_RETRY_DELAY);
err =
tvp514x_write_reg(decoder->client, REG_CLEAR_LOST_LOCK, 0x01);
if (err)
return err;
switch (input_sel) {
case INPUT_CVBS_VI1A:
case INPUT_CVBS_VI1B:
case INPUT_CVBS_VI1C:
case INPUT_CVBS_VI2A:
case INPUT_CVBS_VI2B:
case INPUT_CVBS_VI2C:
case INPUT_CVBS_VI3A:
case INPUT_CVBS_VI3B:
case INPUT_CVBS_VI3C:
case INPUT_CVBS_VI4A:
lock_mask = STATUS_CLR_SUBCAR_LOCK_BIT |
STATUS_HORZ_SYNC_LOCK_BIT |
STATUS_VIRT_SYNC_LOCK_BIT;
break;
case INPUT_SVIDEO_VI2A_VI1A:
case INPUT_SVIDEO_VI2B_VI1B:
case INPUT_SVIDEO_VI2C_VI1C:
case INPUT_SVIDEO_VI2A_VI3A:
case INPUT_SVIDEO_VI2B_VI3B:
case INPUT_SVIDEO_VI2C_VI3C:
case INPUT_SVIDEO_VI4A_VI1A:
case INPUT_SVIDEO_VI4A_VI1B:
case INPUT_SVIDEO_VI4A_VI1C:
case INPUT_SVIDEO_VI4A_VI3A:
case INPUT_SVIDEO_VI4A_VI3B:
case INPUT_SVIDEO_VI4A_VI3C:
lock_mask = STATUS_HORZ_SYNC_LOCK_BIT |
STATUS_VIRT_SYNC_LOCK_BIT;
break;
/*Need to add other interfaces*/
default:
return -EINVAL;
}
while (try_count-- > 0) {
/* Allow decoder to sync up with new input */
msleep(LOCK_RETRY_DELAY);
/* get the current standard for future reference */
current_std = tvp514x_get_current_std(decoder);
if (current_std == STD_INVALID)
continue;
sync_lock_status = tvp514x_read_reg(decoder->client,
REG_STATUS1);
if (lock_mask == (sync_lock_status & lock_mask))
break; /* Input detected */
}
if ((current_std == STD_INVALID) || (try_count <= 0))
return -EINVAL;
decoder->current_std = current_std;
decoder->route.input = route->input;
decoder->route.output = route->output;
v4l_dbg(1, debug, decoder->client,
"Input set to: %d, std : %d",
input_sel, current_std);
return 0;
}
/**
* ioctl_queryctrl - V4L2 decoder interface handler for VIDIOC_QUERYCTRL ioctl
* @s: pointer to standard V4L2 device structure
* @qctrl: standard V4L2 v4l2_queryctrl structure
*
* If the requested control is supported, returns the control information.
* Otherwise, returns -EINVAL if the control is not supported.
*/
static int
ioctl_queryctrl(struct v4l2_int_device *s, struct v4l2_queryctrl *qctrl)
{
struct tvp514x_decoder *decoder = s->priv;
int err = -EINVAL;
if (qctrl == NULL)
return err;
switch (qctrl->id) {
case V4L2_CID_BRIGHTNESS:
/* Brightness supported is (0-255),
*/
err = v4l2_ctrl_query_fill(qctrl, 0, 255, 1, 128);
break;
case V4L2_CID_CONTRAST:
case V4L2_CID_SATURATION:
/* Saturation and Contrast supported is -
* Contrast: 0 - 255 (Default - 128)
* Saturation: 0 - 255 (Default - 128)
*/
err = v4l2_ctrl_query_fill(qctrl, 0, 255, 1, 128);
break;
case V4L2_CID_HUE:
/* Hue Supported is -
* Hue - -180 - +180 (Default - 0, Step - +180)
*/
err = v4l2_ctrl_query_fill(qctrl, -180, 180, 180, 0);
break;
case V4L2_CID_AUTOGAIN:
/* Autogain is either 0 or 1*/
memcpy(qctrl, &tvp514x_autogain_ctrl,
sizeof(struct v4l2_queryctrl));
err = 0;
break;
default:
v4l_err(decoder->client,
"invalid control id %d\n", qctrl->id);
return err;
}
v4l_dbg(1, debug, decoder->client,
"Query Control: %s : Min - %d, Max - %d, Def - %d",
qctrl->name,
qctrl->minimum,
qctrl->maximum,
qctrl->default_value);
return err;
}
/**
* ioctl_g_ctrl - V4L2 decoder interface handler for VIDIOC_G_CTRL ioctl
* @s: pointer to standard V4L2 device structure
* @ctrl: pointer to v4l2_control structure
*
* If the requested control is supported, returns the control's current
* value from the decoder. Otherwise, returns -EINVAL if the control is not
* supported.
*/
static int
ioctl_g_ctrl(struct v4l2_int_device *s, struct v4l2_control *ctrl)
{
struct tvp514x_decoder *decoder = s->priv;
if (ctrl == NULL)
return -EINVAL;
switch (ctrl->id) {
case V4L2_CID_BRIGHTNESS:
ctrl->value = decoder->tvp514x_regs[REG_BRIGHTNESS].val;
break;
case V4L2_CID_CONTRAST:
ctrl->value = decoder->tvp514x_regs[REG_CONTRAST].val;
break;
case V4L2_CID_SATURATION:
ctrl->value = decoder->tvp514x_regs[REG_SATURATION].val;
break;
case V4L2_CID_HUE:
ctrl->value = decoder->tvp514x_regs[REG_HUE].val;
if (ctrl->value == 0x7F)
ctrl->value = 180;
else if (ctrl->value == 0x80)
ctrl->value = -180;
else
ctrl->value = 0;
break;
case V4L2_CID_AUTOGAIN:
ctrl->value = decoder->tvp514x_regs[REG_AFE_GAIN_CTRL].val;
if ((ctrl->value & 0x3) == 3)
ctrl->value = 1;
else
ctrl->value = 0;
break;
default:
v4l_err(decoder->client,
"invalid control id %d\n", ctrl->id);
return -EINVAL;
}
v4l_dbg(1, debug, decoder->client,
"Get Control: ID - %d - %d",
ctrl->id, ctrl->value);
return 0;
}
/**
* ioctl_s_ctrl - V4L2 decoder interface handler for VIDIOC_S_CTRL ioctl
* @s: pointer to standard V4L2 device structure
* @ctrl: pointer to v4l2_control structure
*
* If the requested control is supported, sets the control's current
* value in HW. Otherwise, returns -EINVAL if the control is not supported.
*/
static int
ioctl_s_ctrl(struct v4l2_int_device *s, struct v4l2_control *ctrl)
{
struct tvp514x_decoder *decoder = s->priv;
int err = -EINVAL, value;
if (ctrl == NULL)
return err;
value = (__s32) ctrl->value;
switch (ctrl->id) {
case V4L2_CID_BRIGHTNESS:
if (ctrl->value < 0 || ctrl->value > 255) {
v4l_err(decoder->client,
"invalid brightness setting %d\n",
ctrl->value);
return -ERANGE;
}
err = tvp514x_write_reg(decoder->client, REG_BRIGHTNESS,
value);
if (err)
return err;
decoder->tvp514x_regs[REG_BRIGHTNESS].val = value;
break;
case V4L2_CID_CONTRAST:
if (ctrl->value < 0 || ctrl->value > 255) {
v4l_err(decoder->client,
"invalid contrast setting %d\n",
ctrl->value);
return -ERANGE;
}
err = tvp514x_write_reg(decoder->client, REG_CONTRAST,
value);
if (err)
return err;
decoder->tvp514x_regs[REG_CONTRAST].val = value;
break;
case V4L2_CID_SATURATION:
if (ctrl->value < 0 || ctrl->value > 255) {
v4l_err(decoder->client,
"invalid saturation setting %d\n",
ctrl->value);
return -ERANGE;
}
err = tvp514x_write_reg(decoder->client, REG_SATURATION,
value);
if (err)
return err;
decoder->tvp514x_regs[REG_SATURATION].val = value;
break;
case V4L2_CID_HUE:
if (value == 180)
value = 0x7F;
else if (value == -180)
value = 0x80;
else if (value == 0)
value = 0;
else {
v4l_err(decoder->client,
"invalid hue setting %d\n",
ctrl->value);
return -ERANGE;
}
err = tvp514x_write_reg(decoder->client, REG_HUE,
value);
if (err)
return err;
decoder->tvp514x_regs[REG_HUE].val = value;
break;
case V4L2_CID_AUTOGAIN:
if (value == 1)
value = 0x0F;
else if (value == 0)
value = 0x0C;
else {
v4l_err(decoder->client,
"invalid auto gain setting %d\n",
ctrl->value);
return -ERANGE;
}
err = tvp514x_write_reg(decoder->client, REG_AFE_GAIN_CTRL,
value);
if (err)
return err;
decoder->tvp514x_regs[REG_AFE_GAIN_CTRL].val = value;
break;
default:
v4l_err(decoder->client,
"invalid control id %d\n", ctrl->id);
return err;
}
v4l_dbg(1, debug, decoder->client,
"Set Control: ID - %d - %d",
ctrl->id, ctrl->value);
return err;
}
/**
* ioctl_enum_fmt_cap - Implement the CAPTURE buffer VIDIOC_ENUM_FMT ioctl
* @s: pointer to standard V4L2 device structure
* @fmt: standard V4L2 VIDIOC_ENUM_FMT ioctl structure
*
* Implement the VIDIOC_ENUM_FMT ioctl to enumerate supported formats
*/
static int
ioctl_enum_fmt_cap(struct v4l2_int_device *s, struct v4l2_fmtdesc *fmt)
{
struct tvp514x_decoder *decoder = s->priv;
int index;
if (fmt == NULL)
return -EINVAL;
index = fmt->index;
if ((index >= decoder->num_fmts) || (index < 0))
return -EINVAL; /* Index out of bound */
if (fmt->type != V4L2_BUF_TYPE_VIDEO_CAPTURE)
return -EINVAL; /* only capture is supported */
memcpy(fmt, &decoder->fmt_list[index],
sizeof(struct v4l2_fmtdesc));
v4l_dbg(1, debug, decoder->client,
"Current FMT: index - %d (%s)",
decoder->fmt_list[index].index,
decoder->fmt_list[index].description);
return 0;
}
/**
* ioctl_try_fmt_cap - Implement the CAPTURE buffer VIDIOC_TRY_FMT ioctl
* @s: pointer to standard V4L2 device structure
* @f: pointer to standard V4L2 VIDIOC_TRY_FMT ioctl structure
*
* Implement the VIDIOC_TRY_FMT ioctl for the CAPTURE buffer type. This
* ioctl is used to negotiate the image capture size and pixel format
* without actually making it take effect.
*/
static int
ioctl_try_fmt_cap(struct v4l2_int_device *s, struct v4l2_format *f)
{
struct tvp514x_decoder *decoder = s->priv;
int ifmt;
struct v4l2_pix_format *pix;
enum tvp514x_std current_std;
if (f == NULL)
return -EINVAL;
if (f->type != V4L2_BUF_TYPE_VIDEO_CAPTURE)
f->type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
pix = &f->fmt.pix;
/* Calculate height and width based on current standard */
current_std = tvp514x_get_current_std(decoder);
if (current_std == STD_INVALID)
return -EINVAL;
decoder->current_std = current_std;
pix->width = decoder->std_list[current_std].width;
pix->height = decoder->std_list[current_std].height;
for (ifmt = 0; ifmt < decoder->num_fmts; ifmt++) {
if (pix->pixelformat ==
decoder->fmt_list[ifmt].pixelformat)
break;
}
if (ifmt == decoder->num_fmts)
ifmt = 0; /* None of the format matched, select default */
pix->pixelformat = decoder->fmt_list[ifmt].pixelformat;
pix->field = V4L2_FIELD_INTERLACED;
pix->bytesperline = pix->width * 2;
pix->sizeimage = pix->bytesperline * pix->height;
pix->colorspace = V4L2_COLORSPACE_SMPTE170M;
pix->priv = 0;
v4l_dbg(1, debug, decoder->client,
"Try FMT: pixelformat - %s, bytesperline - %d"
"Width - %d, Height - %d",
decoder->fmt_list[ifmt].description, pix->bytesperline,
pix->width, pix->height);
return 0;
}
/**
* ioctl_s_fmt_cap - V4L2 decoder interface handler for VIDIOC_S_FMT ioctl
* @s: pointer to standard V4L2 device structure
* @f: pointer to standard V4L2 VIDIOC_S_FMT ioctl structure
*
* If the requested format is supported, configures the HW to use that
* format, returns error code if format not supported or HW can't be
* correctly configured.
*/
static int
ioctl_s_fmt_cap(struct v4l2_int_device *s, struct v4l2_format *f)
{
struct tvp514x_decoder *decoder = s->priv;
struct v4l2_pix_format *pix;
int rval;
if (f == NULL)
return -EINVAL;
if (f->type != V4L2_BUF_TYPE_VIDEO_CAPTURE)
return -EINVAL; /* only capture is supported */
pix = &f->fmt.pix;
rval = ioctl_try_fmt_cap(s, f);
if (rval)
return rval;
decoder->pix = *pix;
return rval;
}
/**
* ioctl_g_fmt_cap - V4L2 decoder interface handler for ioctl_g_fmt_cap
* @s: pointer to standard V4L2 device structure
* @f: pointer to standard V4L2 v4l2_format structure
*
* Returns the decoder's current pixel format in the v4l2_format
* parameter.
*/
static int
ioctl_g_fmt_cap(struct v4l2_int_device *s, struct v4l2_format *f)
{
struct tvp514x_decoder *decoder = s->priv;
if (f == NULL)
return -EINVAL;
if (f->type != V4L2_BUF_TYPE_VIDEO_CAPTURE)
return -EINVAL; /* only capture is supported */
f->fmt.pix = decoder->pix;
v4l_dbg(1, debug, decoder->client,
"Current FMT: bytesperline - %d"
"Width - %d, Height - %d",
decoder->pix.bytesperline,
decoder->pix.width, decoder->pix.height);
return 0;
}
/**
* ioctl_g_parm - V4L2 decoder interface handler for VIDIOC_G_PARM ioctl
* @s: pointer to standard V4L2 device structure
* @a: pointer to standard V4L2 VIDIOC_G_PARM ioctl structure
*
* Returns the decoder's video CAPTURE parameters.
*/
static int
ioctl_g_parm(struct v4l2_int_device *s, struct v4l2_streamparm *a)
{
struct tvp514x_decoder *decoder = s->priv;
struct v4l2_captureparm *cparm;
enum tvp514x_std current_std;
if (a == NULL)
return -EINVAL;
if (a->type != V4L2_BUF_TYPE_VIDEO_CAPTURE)
return -EINVAL; /* only capture is supported */
memset(a, 0, sizeof(*a));
a->type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
/* get the current standard */
current_std = tvp514x_get_current_std(decoder);
if (current_std == STD_INVALID)
return -EINVAL;
decoder->current_std = current_std;
cparm = &a->parm.capture;
cparm->capability = V4L2_CAP_TIMEPERFRAME;
cparm->timeperframe =
decoder->std_list[current_std].standard.frameperiod;
return 0;
}
/**
* ioctl_s_parm - V4L2 decoder interface handler for VIDIOC_S_PARM ioctl
* @s: pointer to standard V4L2 device structure
* @a: pointer to standard V4L2 VIDIOC_S_PARM ioctl structure
*
* Configures the decoder to use the input parameters, if possible. If
* not possible, returns the appropriate error code.
*/
static int
ioctl_s_parm(struct v4l2_int_device *s, struct v4l2_streamparm *a)
{
struct tvp514x_decoder *decoder = s->priv;
struct v4l2_fract *timeperframe;
enum tvp514x_std current_std;
if (a == NULL)
return -EINVAL;
if (a->type != V4L2_BUF_TYPE_VIDEO_CAPTURE)
return -EINVAL; /* only capture is supported */
timeperframe = &a->parm.capture.timeperframe;
/* get the current standard */
current_std = tvp514x_get_current_std(decoder);
if (current_std == STD_INVALID)
return -EINVAL;
decoder->current_std = current_std;
*timeperframe =
decoder->std_list[current_std].standard.frameperiod;
return 0;
}
/**
* ioctl_g_ifparm - V4L2 decoder interface handler for vidioc_int_g_ifparm_num
* @s: pointer to standard V4L2 device structure
* @p: pointer to standard V4L2 vidioc_int_g_ifparm_num ioctl structure
*
* Gets slave interface parameters.
* Calculates the required xclk value to support the requested
* clock parameters in p. This value is returned in the p
* parameter.
*/
static int ioctl_g_ifparm(struct v4l2_int_device *s, struct v4l2_ifparm *p)
{
struct tvp514x_decoder *decoder = s->priv;
int rval;
if (p == NULL)
return -EINVAL;
if (NULL == decoder->pdata->ifparm)
return -EINVAL;
rval = decoder->pdata->ifparm(p);
if (rval) {
v4l_err(decoder->client, "g_ifparm.Err[%d]\n", rval);
return rval;
}
p->u.bt656.clock_curr = TVP514X_XCLK_BT656;
return 0;
}
/**
* ioctl_g_priv - V4L2 decoder interface handler for vidioc_int_g_priv_num
* @s: pointer to standard V4L2 device structure
* @p: void pointer to hold decoder's private data address
*
* Returns device's (decoder's) private data area address in p parameter
*/
static int ioctl_g_priv(struct v4l2_int_device *s, void *p)
{
struct tvp514x_decoder *decoder = s->priv;
if (NULL == decoder->pdata->priv_data_set)
return -EINVAL;
return decoder->pdata->priv_data_set(p);
}
/**
* ioctl_s_power - V4L2 decoder interface handler for vidioc_int_s_power_num
* @s: pointer to standard V4L2 device structure
* @on: power state to which device is to be set
*
* Sets devices power state to requrested state, if possible.
*/
static int ioctl_s_power(struct v4l2_int_device *s, enum v4l2_power on)
{
struct tvp514x_decoder *decoder = s->priv;
int err = 0;
switch (on) {
case V4L2_POWER_OFF:
/* Power Down Sequence */
err =
tvp514x_write_reg(decoder->client, REG_OPERATION_MODE,
0x01);
/* Disable mux for TVP5146/47 decoder data path */
if (decoder->pdata->power_set)
err |= decoder->pdata->power_set(on);
decoder->state = STATE_NOT_DETECTED;
break;
case V4L2_POWER_STANDBY:
if (decoder->pdata->power_set)
err = decoder->pdata->power_set(on);
break;
case V4L2_POWER_ON:
/* Enable mux for TVP5146/47 decoder data path */
if ((decoder->pdata->power_set) &&
(decoder->state == STATE_NOT_DETECTED)) {
int i;
struct tvp514x_init_seq *int_seq =
(struct tvp514x_init_seq *)
decoder->id->driver_data;
err = decoder->pdata->power_set(on);
/* Power Up Sequence */
for (i = 0; i < int_seq->no_regs; i++) {
err |= tvp514x_write_reg(decoder->client,
int_seq->init_reg_seq[i].reg,
int_seq->init_reg_seq[i].val);
}
/* Detect the sensor is not already detected */
err |= tvp514x_detect(decoder);
if (err) {
v4l_err(decoder->client,
"Unable to detect decoder\n");
return err;
}
}
err |= tvp514x_configure(decoder);
break;
default:
err = -ENODEV;
break;
}
return err;
}
/**
* ioctl_init - V4L2 decoder interface handler for VIDIOC_INT_INIT
* @s: pointer to standard V4L2 device structure
*
* Initialize the decoder device (calls tvp514x_configure())
*/
static int ioctl_init(struct v4l2_int_device *s)
{
struct tvp514x_decoder *decoder = s->priv;
/* Set default standard to auto */
decoder->tvp514x_regs[REG_VIDEO_STD].val =
VIDEO_STD_AUTO_SWITCH_BIT;
return tvp514x_configure(decoder);
}
/**
* ioctl_dev_exit - V4L2 decoder interface handler for vidioc_int_dev_exit_num
* @s: pointer to standard V4L2 device structure
*
* Delinitialise the dev. at slave detach. The complement of ioctl_dev_init.
*/
static int ioctl_dev_exit(struct v4l2_int_device *s)
{
return 0;
}
/**
* ioctl_dev_init - V4L2 decoder interface handler for vidioc_int_dev_init_num
* @s: pointer to standard V4L2 device structure
*
* Initialise the device when slave attaches to the master. Returns 0 if
* TVP5146/47 device could be found, otherwise returns appropriate error.
*/
static int ioctl_dev_init(struct v4l2_int_device *s)
{
struct tvp514x_decoder *decoder = s->priv;
int err;
err = tvp514x_detect(decoder);
if (err < 0) {
v4l_err(decoder->client,
"Unable to detect decoder\n");
return err;
}
v4l_info(decoder->client,
"chip version 0x%.2x detected\n", decoder->ver);
return 0;
}
static struct v4l2_int_ioctl_desc tvp514x_ioctl_desc[] = {
{vidioc_int_dev_init_num, (v4l2_int_ioctl_func*) ioctl_dev_init},
{vidioc_int_dev_exit_num, (v4l2_int_ioctl_func*) ioctl_dev_exit},
{vidioc_int_s_power_num, (v4l2_int_ioctl_func*) ioctl_s_power},
{vidioc_int_g_priv_num, (v4l2_int_ioctl_func*) ioctl_g_priv},
{vidioc_int_g_ifparm_num, (v4l2_int_ioctl_func*) ioctl_g_ifparm},
{vidioc_int_init_num, (v4l2_int_ioctl_func*) ioctl_init},
{vidioc_int_enum_fmt_cap_num,
(v4l2_int_ioctl_func *) ioctl_enum_fmt_cap},
{vidioc_int_try_fmt_cap_num,
(v4l2_int_ioctl_func *) ioctl_try_fmt_cap},
{vidioc_int_g_fmt_cap_num,
(v4l2_int_ioctl_func *) ioctl_g_fmt_cap},
{vidioc_int_s_fmt_cap_num,
(v4l2_int_ioctl_func *) ioctl_s_fmt_cap},
{vidioc_int_g_parm_num, (v4l2_int_ioctl_func *) ioctl_g_parm},
{vidioc_int_s_parm_num, (v4l2_int_ioctl_func *) ioctl_s_parm},
{vidioc_int_queryctrl_num,
(v4l2_int_ioctl_func *) ioctl_queryctrl},
{vidioc_int_g_ctrl_num, (v4l2_int_ioctl_func *) ioctl_g_ctrl},
{vidioc_int_s_ctrl_num, (v4l2_int_ioctl_func *) ioctl_s_ctrl},
{vidioc_int_querystd_num, (v4l2_int_ioctl_func *) ioctl_querystd},
{vidioc_int_s_std_num, (v4l2_int_ioctl_func *) ioctl_s_std},
{vidioc_int_s_video_routing_num,
(v4l2_int_ioctl_func *) ioctl_s_routing},
};
static struct tvp514x_decoder tvp514x_dev = {
.state = STATE_NOT_DETECTED,
.fmt_list = tvp514x_fmt_list,
.num_fmts = ARRAY_SIZE(tvp514x_fmt_list),
.pix = { /* Default to NTSC 8-bit YUV 422 */
.width = NTSC_NUM_ACTIVE_PIXELS,
.height = NTSC_NUM_ACTIVE_LINES,
.pixelformat = V4L2_PIX_FMT_UYVY,
.field = V4L2_FIELD_INTERLACED,
.bytesperline = NTSC_NUM_ACTIVE_PIXELS * 2,
.sizeimage =
NTSC_NUM_ACTIVE_PIXELS * 2 * NTSC_NUM_ACTIVE_LINES,
.colorspace = V4L2_COLORSPACE_SMPTE170M,
},
.current_std = STD_NTSC_MJ,
.std_list = tvp514x_std_list,
.num_stds = ARRAY_SIZE(tvp514x_std_list),
.v4l2_int_device = {
.module = THIS_MODULE,
.name = TVP514X_MODULE_NAME,
.type = v4l2_int_type_slave,
},
.tvp514x_slave = {
.ioctls = tvp514x_ioctl_desc,
.num_ioctls = ARRAY_SIZE(tvp514x_ioctl_desc),
},
};
/**
* tvp514x_probe - decoder driver i2c probe handler
* @client: i2c driver client device structure
*
* Register decoder as an i2c client device and V4L2
* device.
*/
static int
tvp514x_probe(struct i2c_client *client, const struct i2c_device_id *id)
{
struct tvp514x_decoder *decoder;
int err;
/* Check if the adapter supports the needed features */
if (!i2c_check_functionality(client->adapter, I2C_FUNC_SMBUS_BYTE_DATA))
return -EIO;
decoder = kzalloc(sizeof(*decoder), GFP_KERNEL);
if (!decoder)
return -ENOMEM;
if (!client->dev.platform_data) {
v4l_err(client, "No platform data!!\n");
err = -ENODEV;
goto out_free;
}
*decoder = tvp514x_dev;
decoder->v4l2_int_device.priv = decoder;
decoder->pdata = client->dev.platform_data;
decoder->v4l2_int_device.u.slave = &decoder->tvp514x_slave;
memcpy(decoder->tvp514x_regs, tvp514x_reg_list_default,
sizeof(tvp514x_reg_list_default));
/*
* Fetch platform specific data, and configure the
* tvp514x_reg_list[] accordingly. Since this is one
* time configuration, no need to preserve.
*/
decoder->tvp514x_regs[REG_OUTPUT_FORMATTER2].val |=
(decoder->pdata->clk_polarity << 1);
decoder->tvp514x_regs[REG_SYNC_CONTROL].val |=
((decoder->pdata->hs_polarity << 2) |
(decoder->pdata->vs_polarity << 3));
/*
* Save the id data, required for power up sequence
*/
decoder->id = (struct i2c_device_id *)id;
/* Attach to Master */
strcpy(decoder->v4l2_int_device.u.slave->attach_to,
decoder->pdata->master);
decoder->client = client;
i2c_set_clientdata(client, decoder);
/* Register with V4L2 layer as slave device */
err = v4l2_int_device_register(&decoder->v4l2_int_device);
if (err) {
i2c_set_clientdata(client, NULL);
v4l_err(client,
"Unable to register to v4l2. Err[%d]\n", err);
goto out_free;
} else
v4l_info(client, "Registered to v4l2 master %s!!\n",
decoder->pdata->master);
return 0;
out_free:
kfree(decoder);
return err;
}
/**
* tvp514x_remove - decoder driver i2c remove handler
* @client: i2c driver client device structure
*
* Unregister decoder as an i2c client device and V4L2
* device. Complement of tvp514x_probe().
*/
static int __exit tvp514x_remove(struct i2c_client *client)
{
struct tvp514x_decoder *decoder = i2c_get_clientdata(client);
if (!client->adapter)
return -ENODEV; /* our client isn't attached */
v4l2_int_device_unregister(&decoder->v4l2_int_device);
i2c_set_clientdata(client, NULL);
kfree(decoder);
return 0;
}
/*
* TVP5146 Init/Power on Sequence
*/
static const struct tvp514x_reg tvp5146_init_reg_seq[] = {
{TOK_WRITE, REG_VBUS_ADDRESS_ACCESS1, 0x02},
{TOK_WRITE, REG_VBUS_ADDRESS_ACCESS2, 0x00},
{TOK_WRITE, REG_VBUS_ADDRESS_ACCESS3, 0x80},
{TOK_WRITE, REG_VBUS_DATA_ACCESS_NO_VBUS_ADDR_INCR, 0x01},
{TOK_WRITE, REG_VBUS_ADDRESS_ACCESS1, 0x60},
{TOK_WRITE, REG_VBUS_ADDRESS_ACCESS2, 0x00},
{TOK_WRITE, REG_VBUS_ADDRESS_ACCESS3, 0xB0},
{TOK_WRITE, REG_VBUS_DATA_ACCESS_NO_VBUS_ADDR_INCR, 0x01},
{TOK_WRITE, REG_VBUS_DATA_ACCESS_NO_VBUS_ADDR_INCR, 0x00},
{TOK_WRITE, REG_OPERATION_MODE, 0x01},
{TOK_WRITE, REG_OPERATION_MODE, 0x00},
};
static const struct tvp514x_init_seq tvp5146_init = {
.no_regs = ARRAY_SIZE(tvp5146_init_reg_seq),
.init_reg_seq = tvp5146_init_reg_seq,
};
/*
* TVP5147 Init/Power on Sequence
*/
static const struct tvp514x_reg tvp5147_init_reg_seq[] = {
{TOK_WRITE, REG_VBUS_ADDRESS_ACCESS1, 0x02},
{TOK_WRITE, REG_VBUS_ADDRESS_ACCESS2, 0x00},
{TOK_WRITE, REG_VBUS_ADDRESS_ACCESS3, 0x80},
{TOK_WRITE, REG_VBUS_DATA_ACCESS_NO_VBUS_ADDR_INCR, 0x01},
{TOK_WRITE, REG_VBUS_ADDRESS_ACCESS1, 0x60},
{TOK_WRITE, REG_VBUS_ADDRESS_ACCESS2, 0x00},
{TOK_WRITE, REG_VBUS_ADDRESS_ACCESS3, 0xB0},
{TOK_WRITE, REG_VBUS_DATA_ACCESS_NO_VBUS_ADDR_INCR, 0x01},
{TOK_WRITE, REG_VBUS_ADDRESS_ACCESS1, 0x16},
{TOK_WRITE, REG_VBUS_ADDRESS_ACCESS2, 0x00},
{TOK_WRITE, REG_VBUS_ADDRESS_ACCESS3, 0xA0},
{TOK_WRITE, REG_VBUS_DATA_ACCESS_NO_VBUS_ADDR_INCR, 0x16},
{TOK_WRITE, REG_VBUS_ADDRESS_ACCESS1, 0x60},
{TOK_WRITE, REG_VBUS_ADDRESS_ACCESS2, 0x00},
{TOK_WRITE, REG_VBUS_ADDRESS_ACCESS3, 0xB0},
{TOK_WRITE, REG_VBUS_DATA_ACCESS_NO_VBUS_ADDR_INCR, 0x00},
{TOK_WRITE, REG_OPERATION_MODE, 0x01},
{TOK_WRITE, REG_OPERATION_MODE, 0x00},
};
static const struct tvp514x_init_seq tvp5147_init = {
.no_regs = ARRAY_SIZE(tvp5147_init_reg_seq),
.init_reg_seq = tvp5147_init_reg_seq,
};
/*
* TVP5146M2/TVP5147M1 Init/Power on Sequence
*/
static const struct tvp514x_reg tvp514xm_init_reg_seq[] = {
{TOK_WRITE, REG_OPERATION_MODE, 0x01},
{TOK_WRITE, REG_OPERATION_MODE, 0x00},
};
static const struct tvp514x_init_seq tvp514xm_init = {
.no_regs = ARRAY_SIZE(tvp514xm_init_reg_seq),
.init_reg_seq = tvp514xm_init_reg_seq,
};
/*
* I2C Device Table -
*
* name - Name of the actual device/chip.
* driver_data - Driver data
*/
static const struct i2c_device_id tvp514x_id[] = {
{"tvp5146", (unsigned long)&tvp5146_init},
{"tvp5146m2", (unsigned long)&tvp514xm_init},
{"tvp5147", (unsigned long)&tvp5147_init},
{"tvp5147m1", (unsigned long)&tvp514xm_init},
{},
};
MODULE_DEVICE_TABLE(i2c, tvp514x_id);
static struct i2c_driver tvp514x_i2c_driver = {
.driver = {
.name = TVP514X_MODULE_NAME,
.owner = THIS_MODULE,
},
.probe = tvp514x_probe,
.remove = __exit_p(tvp514x_remove),
.id_table = tvp514x_id,
};
/**
* tvp514x_init
*
* Module init function
*/
static int __init tvp514x_init(void)
{
return i2c_add_driver(&tvp514x_i2c_driver);
}
/**
* tvp514x_cleanup
*
* Module exit function
*/
static void __exit tvp514x_cleanup(void)
{
i2c_del_driver(&tvp514x_i2c_driver);
}
module_init(tvp514x_init);
module_exit(tvp514x_cleanup);
MODULE_AUTHOR("Texas Instruments");
MODULE_DESCRIPTION("TVP514X linux decoder driver");
MODULE_LICENSE("GPL");
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