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linux/drivers/media/i2c/tvp5150.c
Hans Verkuil 26811ae035 [media] tvp5150: fix s_std support 
- do exact matching for special formats like PAL-M
- drop autodetect support: it's non-standard, and it is bogus as well since there
  is no way to get back the detected standard since neither g_std nor querystd are
  implemented.

Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2013-06-17 09:48:10 -03:00

1232 lines
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/*
* tvp5150 - Texas Instruments TVP5150A/AM1 video decoder driver
*
* Copyright (c) 2005,2006 Mauro Carvalho Chehab (mchehab@infradead.org)
* This code is placed under the terms of the GNU General Public License v2
*/
#include <linux/i2c.h>
#include <linux/slab.h>
#include <linux/videodev2.h>
#include <linux/delay.h>
#include <linux/module.h>
#include <media/v4l2-device.h>
#include <media/tvp5150.h>
#include <media/v4l2-ctrls.h>
#include "tvp5150_reg.h"
#define TVP5150_H_MAX 720
#define TVP5150_V_MAX_525_60 480
#define TVP5150_V_MAX_OTHERS 576
#define TVP5150_MAX_CROP_LEFT 511
#define TVP5150_MAX_CROP_TOP 127
#define TVP5150_CROP_SHIFT 2
MODULE_DESCRIPTION("Texas Instruments TVP5150A video decoder driver");
MODULE_AUTHOR("Mauro Carvalho Chehab");
MODULE_LICENSE("GPL");
static int debug;
module_param(debug, int, 0);
MODULE_PARM_DESC(debug, "Debug level (0-2)");
struct tvp5150 {
struct v4l2_subdev sd;
struct v4l2_ctrl_handler hdl;
struct v4l2_rect rect;
v4l2_std_id norm; /* Current set standard */
u32 input;
u32 output;
int enable;
};
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 i2c_client *c = v4l2_get_subdevdata(sd);
unsigned char buffer[1];
int rc;
buffer[0] = addr;
rc = i2c_master_send(c, buffer, 1);
if (rc < 0) {
v4l2_err(sd, "i2c i/o error: rc == %d (should be 1)\n", rc);
return rc;
}
msleep(10);
rc = i2c_master_recv(c, buffer, 1);
if (rc < 0) {
v4l2_err(sd, "i2c i/o error: rc == %d (should be 1)\n", rc);
return rc;
}
v4l2_dbg(2, debug, sd, "tvp5150: read 0x%02x = 0x%02x\n", addr, buffer[0]);
return (buffer[0]);
}
static inline void tvp5150_write(struct v4l2_subdev *sd, unsigned char addr,
unsigned char value)
{
struct i2c_client *c = v4l2_get_subdevdata(sd);
unsigned char buffer[2];
int rc;
buffer[0] = addr;
buffer[1] = value;
v4l2_dbg(2, debug, sd, "tvp5150: writing 0x%02x 0x%02x\n", buffer[0], buffer[1]);
if (2 != (rc = i2c_master_send(c, buffer, 2)))
v4l2_dbg(0, debug, sd, "i2c i/o error: rc == %d (should be 2)\n", rc);
}
static void dump_reg_range(struct v4l2_subdev *sd, char *s, u8 init,
const u8 end, int max_line)
{
int i = 0;
while (init != (u8)(end + 1)) {
if ((i % max_line) == 0) {
if (i > 0)
printk("\n");
printk("tvp5150: %s reg 0x%02x = ", s, init);
}
printk("%02x ", tvp5150_read(sd, init));
init++;
i++;
}
printk("\n");
}
static int tvp5150_log_status(struct v4l2_subdev *sd)
{
printk("tvp5150: Video input source selection #1 = 0x%02x\n",
tvp5150_read(sd, TVP5150_VD_IN_SRC_SEL_1));
printk("tvp5150: Analog channel controls = 0x%02x\n",
tvp5150_read(sd, TVP5150_ANAL_CHL_CTL));
printk("tvp5150: Operation mode controls = 0x%02x\n",
tvp5150_read(sd, TVP5150_OP_MODE_CTL));
printk("tvp5150: Miscellaneous controls = 0x%02x\n",
tvp5150_read(sd, TVP5150_MISC_CTL));
printk("tvp5150: Autoswitch mask= 0x%02x\n",
tvp5150_read(sd, TVP5150_AUTOSW_MSK));
printk("tvp5150: Color killer threshold control = 0x%02x\n",
tvp5150_read(sd, TVP5150_COLOR_KIL_THSH_CTL));
printk("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));
printk("tvp5150: Brightness control = 0x%02x\n",
tvp5150_read(sd, TVP5150_BRIGHT_CTL));
printk("tvp5150: Color saturation control = 0x%02x\n",
tvp5150_read(sd, TVP5150_SATURATION_CTL));
printk("tvp5150: Hue control = 0x%02x\n",
tvp5150_read(sd, TVP5150_HUE_CTL));
printk("tvp5150: Contrast control = 0x%02x\n",
tvp5150_read(sd, TVP5150_CONTRAST_CTL));
printk("tvp5150: Outputs and data rates select = 0x%02x\n",
tvp5150_read(sd, TVP5150_DATA_RATE_SEL));
printk("tvp5150: Configuration shared pins = 0x%02x\n",
tvp5150_read(sd, TVP5150_CONF_SHARED_PIN));
printk("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));
printk("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));
printk("tvp5150: Genlock/RTC = 0x%02x\n",
tvp5150_read(sd, TVP5150_GENLOCK));
printk("tvp5150: Horizontal sync start = 0x%02x\n",
tvp5150_read(sd, TVP5150_HORIZ_SYNC_START));
printk("tvp5150: Vertical blanking start = 0x%02x\n",
tvp5150_read(sd, TVP5150_VERT_BLANKING_START));
printk("tvp5150: Vertical blanking stop = 0x%02x\n",
tvp5150_read(sd, TVP5150_VERT_BLANKING_STOP));
printk("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));
printk("tvp5150: Interrupt reset register B = 0x%02x\n",
tvp5150_read(sd, TVP5150_INT_RESET_REG_B));
printk("tvp5150: Interrupt enable register B = 0x%02x\n",
tvp5150_read(sd, TVP5150_INT_ENABLE_REG_B));
printk("tvp5150: Interrupt configuration register B = 0x%02x\n",
tvp5150_read(sd, TVP5150_INTT_CONFIG_REG_B));
printk("tvp5150: Video standard = 0x%02x\n",
tvp5150_read(sd, TVP5150_VIDEO_STD));
printk("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));
printk("tvp5150: Macrovision on counter = 0x%02x\n",
tvp5150_read(sd, TVP5150_MACROVISION_ON_CTR));
printk("tvp5150: Macrovision off counter = 0x%02x\n",
tvp5150_read(sd, TVP5150_MACROVISION_OFF_CTR));
printk("tvp5150: ITU-R BT.656.%d timing(TVP5150AM1 only)\n",
(tvp5150_read(sd, TVP5150_REV_SELECT) & 1) ? 3 : 4);
printk("tvp5150: Device ID = %02x%02x\n",
tvp5150_read(sd, TVP5150_MSB_DEV_ID),
tvp5150_read(sd, TVP5150_LSB_DEV_ID));
printk("tvp5150: ROM version = (hex) %02x.%02x\n",
tvp5150_read(sd, TVP5150_ROM_MAJOR_VER),
tvp5150_read(sd, TVP5150_ROM_MINOR_VER));
printk("tvp5150: Vertical line count = 0x%02x%02x\n",
tvp5150_read(sd, TVP5150_VERT_LN_COUNT_MSB),
tvp5150_read(sd, TVP5150_VERT_LN_COUNT_LSB));
printk("tvp5150: Interrupt status register B = 0x%02x\n",
tvp5150_read(sd, TVP5150_INT_STATUS_REG_B));
printk("tvp5150: Interrupt active register B = 0x%02x\n",
tvp5150_read(sd, TVP5150_INT_ACTIVE_REG_B));
printk("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);
printk("tvp5150: Teletext filter enable = 0x%02x\n",
tvp5150_read(sd, TVP5150_TELETEXT_FIL_ENA));
printk("tvp5150: Interrupt status register A = 0x%02x\n",
tvp5150_read(sd, TVP5150_INT_STATUS_REG_A));
printk("tvp5150: Interrupt enable register A = 0x%02x\n",
tvp5150_read(sd, TVP5150_INT_ENABLE_REG_A));
printk("tvp5150: Interrupt configuration = 0x%02x\n",
tvp5150_read(sd, TVP5150_INT_CONF));
printk("tvp5150: VDP status register = 0x%02x\n",
tvp5150_read(sd, TVP5150_VDP_STATUS_REG));
printk("tvp5150: FIFO word count = 0x%02x\n",
tvp5150_read(sd, TVP5150_FIFO_WORD_COUNT));
printk("tvp5150: FIFO interrupt threshold = 0x%02x\n",
tvp5150_read(sd, TVP5150_FIFO_INT_THRESHOLD));
printk("tvp5150: FIFO reset = 0x%02x\n",
tvp5150_read(sd, TVP5150_FIFO_RESET));
printk("tvp5150: Line number interrupt = 0x%02x\n",
tvp5150_read(sd, TVP5150_LINE_NUMBER_INT));
printk("tvp5150: Pixel alignment register = 0x%02x%02x\n",
tvp5150_read(sd, TVP5150_PIX_ALIGN_REG_HIGH),
tvp5150_read(sd, TVP5150_PIX_ALIGN_REG_LOW));
printk("tvp5150: FIFO output control = 0x%02x\n",
tvp5150_read(sd, TVP5150_FIFO_OUT_CTRL));
printk("tvp5150: Full field enable = 0x%02x\n",
tvp5150_read(sd, TVP5150_FULL_FIELD_ENA));
printk("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 inline void tvp5150_selmux(struct v4l2_subdev *sd)
{
int opmode = 0;
struct tvp5150 *decoder = to_tvp5150(sd);
int input = 0;
int val;
if ((decoder->output & TVP5150_BLACK_SCREEN) || !decoder->enable)
input = 8;
switch (decoder->input) {
case TVP5150_COMPOSITE1:
input |= 2;
/* fall through */
case TVP5150_COMPOSITE0:
break;
case TVP5150_SVIDEO:
default:
input |= 1;
break;
}
v4l2_dbg(1, debug, sd, "Selecting video route: route input=%i, output=%i "
"=> tvp5150 input=%i, opmode=%i\n",
decoder->input, decoder->output,
input, opmode);
tvp5150_write(sd, TVP5150_OP_MODE_CTL, opmode);
tvp5150_write(sd, TVP5150_VD_IN_SRC_SEL_1, input);
/* Svideo should enable YCrCb output and disable GPCL output
* For Composite and TV, it should be the reverse
*/
val = tvp5150_read(sd, TVP5150_MISC_CTL);
if (val < 0) {
v4l2_err(sd, "%s: failed with error = %d\n", __func__, val);
return;
}
if (decoder->input == TVP5150_SVIDEO)
val = (val & ~0x40) | 0x10;
else
val = (val & ~0x10) | 0x40;
tvp5150_write(sd, TVP5150_MISC_CTL, 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[] = {
{
TVP5150_CONF_SHARED_PIN, 2
},{ /* Automatic offset and AGC enabled */
TVP5150_ANAL_CHL_CTL, 0x15
},{ /* Activate YCrCb output 0x9 or 0xd ? */
TVP5150_MISC_CTL, 0x6f
},{ /* 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
{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
{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
{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 }
},
{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 }
},
{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 }
},
{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 }
},
{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
{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 }
},
{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
{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 }
},
{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 }
},
{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
{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 */
/* End of struct */
{ (u16)-1 }
};
static int tvp5150_write_inittab(struct v4l2_subdev *sd,
const struct i2c_reg_value *regs)
{
while (regs->reg != 0xff) {
tvp5150_write(sd, regs->reg, regs->value);
regs++;
}
return 0;
}
static int tvp5150_vdp_init(struct v4l2_subdev *sd,
const struct i2c_vbi_ram_value *regs)
{
unsigned int i;
/* Disable Full Field */
tvp5150_write(sd, 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++)
tvp5150_write(sd, i, 0xff);
/* Load Ram Table */
while (regs->reg != (u16)-1) {
tvp5150_write(sd, TVP5150_CONF_RAM_ADDR_HIGH, regs->reg >> 8);
tvp5150_write(sd, TVP5150_CONF_RAM_ADDR_LOW, regs->reg);
for (i = 0; i < 16; i++)
tvp5150_write(sd, TVP5150_VDP_CONF_RAM_DATA, regs->values[i]);
regs++;
}
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)
{
const struct i2c_vbi_ram_value *regs = vbi_ram_default;
int line;
v4l2_dbg(1, debug, sd, "g_sliced_vbi_cap\n");
memset(cap, 0, sizeof *cap);
while (regs->reg != (u16)-1 ) {
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;
regs++;
}
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,
const struct i2c_vbi_ram_value *regs,
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 pos=0;
if (std == V4L2_STD_ALL) {
v4l2_err(sd, "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;
while (regs->reg != (u16)-1 ) {
if ((type & regs->type.vbi_type) &&
(line>=regs->type.ini_line) &&
(line<=regs->type.end_line)) {
type=regs->type.vbi_type;
break;
}
regs++;
pos++;
}
if (regs->reg == (u16)-1)
return 0;
type=pos | (flags & 0xf0);
reg=((line-6)<<1)+TVP5150_LINE_MODE_INI;
if (fields&1) {
tvp5150_write(sd, reg, type);
}
if (fields&2) {
tvp5150_write(sd, reg+1, type);
}
return type;
}
static int tvp5150_get_vbi(struct v4l2_subdev *sd,
const struct i2c_vbi_ram_value *regs, 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) {
v4l2_err(sd, "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) {
v4l2_err(sd, "%s: failed with error = %d\n",
__func__, ret);
return 0;
}
pos = ret & 0x0f;
if (pos < 0x0f)
type |= regs[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;
decoder->norm = std;
/* 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;
}
v4l2_dbg(1, debug, sd, "Set video std register to %d.\n", fmt);
tvp5150_write(sd, TVP5150_VIDEO_STD, fmt);
return 0;
}
static int tvp5150_s_std(struct v4l2_subdev *sd, v4l2_std_id std)
{
struct tvp5150 *decoder = to_tvp5150(sd);
if (decoder->norm == std)
return 0;
/* 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;
return tvp5150_set_std(sd, std);
}
static int tvp5150_reset(struct v4l2_subdev *sd, u32 val)
{
struct tvp5150 *decoder = to_tvp5150(sd);
/* Initializes TVP5150 to its default values */
tvp5150_write_inittab(sd, tvp5150_init_default);
/* Initializes VDP registers */
tvp5150_vdp_init(sd, vbi_ram_default);
/* Selects decoder input */
tvp5150_selmux(sd);
/* Initializes TVP5150 to stream enabled values */
tvp5150_write_inittab(sd, tvp5150_init_enable);
/* Initialize image preferences */
v4l2_ctrl_handler_setup(&decoder->hdl);
tvp5150_set_std(sd, decoder->norm);
return 0;
};
static int tvp5150_s_ctrl(struct v4l2_ctrl *ctrl)
{
struct v4l2_subdev *sd = to_sd(ctrl);
switch (ctrl->id) {
case V4L2_CID_BRIGHTNESS:
tvp5150_write(sd, TVP5150_BRIGHT_CTL, ctrl->val);
return 0;
case V4L2_CID_CONTRAST:
tvp5150_write(sd, TVP5150_CONTRAST_CTL, ctrl->val);
return 0;
case V4L2_CID_SATURATION:
tvp5150_write(sd, TVP5150_SATURATION_CTL, ctrl->val);
return 0;
case V4L2_CID_HUE:
tvp5150_write(sd, TVP5150_HUE_CTL, ctrl->val);
return 0;
}
return -EINVAL;
}
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 tvp5150_enum_mbus_fmt(struct v4l2_subdev *sd, unsigned index,
enum v4l2_mbus_pixelcode *code)
{
if (index)
return -EINVAL;
*code = V4L2_MBUS_FMT_UYVY8_2X8;
return 0;
}
static int tvp5150_mbus_fmt(struct v4l2_subdev *sd,
struct v4l2_mbus_framefmt *f)
{
struct tvp5150 *decoder = to_tvp5150(sd);
if (f == NULL)
return -EINVAL;
tvp5150_reset(sd, 0);
f->width = decoder->rect.width;
f->height = decoder->rect.height;
f->code = V4L2_MBUS_FMT_UYVY8_2X8;
f->field = V4L2_FIELD_SEQ_TB;
f->colorspace = V4L2_COLORSPACE_SMPTE170M;
v4l2_dbg(1, debug, sd, "width = %d, height = %d\n", f->width,
f->height);
return 0;
}
static int tvp5150_s_crop(struct v4l2_subdev *sd, const struct v4l2_crop *a)
{
struct v4l2_rect rect = a->c;
struct tvp5150 *decoder = to_tvp5150(sd);
v4l2_std_id std;
int hmax;
v4l2_dbg(1, debug, sd, "%s left=%d, top=%d, width=%d, height=%d\n",
__func__, rect.left, rect.top, rect.width, rect.height);
if (a->type != V4L2_BUF_TYPE_VIDEO_CAPTURE)
return -EINVAL;
/* tvp5150 has some special limits */
rect.left = clamp(rect.left, 0, TVP5150_MAX_CROP_LEFT);
rect.width = clamp(rect.width,
TVP5150_H_MAX - TVP5150_MAX_CROP_LEFT - rect.left,
TVP5150_H_MAX - rect.left);
rect.top = clamp(rect.top, 0, TVP5150_MAX_CROP_TOP);
/* 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)
hmax = TVP5150_V_MAX_525_60;
else
hmax = TVP5150_V_MAX_OTHERS;
rect.height = clamp(rect.height,
hmax - TVP5150_MAX_CROP_TOP - rect.top,
hmax - rect.top);
tvp5150_write(sd, TVP5150_VERT_BLANKING_START, rect.top);
tvp5150_write(sd, TVP5150_VERT_BLANKING_STOP,
rect.top + rect.height - hmax);
tvp5150_write(sd, TVP5150_ACT_VD_CROP_ST_MSB,
rect.left >> TVP5150_CROP_SHIFT);
tvp5150_write(sd, TVP5150_ACT_VD_CROP_ST_LSB,
rect.left | (1 << TVP5150_CROP_SHIFT));
tvp5150_write(sd, TVP5150_ACT_VD_CROP_STP_MSB,
(rect.left + rect.width - TVP5150_MAX_CROP_LEFT) >>
TVP5150_CROP_SHIFT);
tvp5150_write(sd, TVP5150_ACT_VD_CROP_STP_LSB,
rect.left + rect.width - TVP5150_MAX_CROP_LEFT);
decoder->rect = rect;
return 0;
}
static int tvp5150_g_crop(struct v4l2_subdev *sd, struct v4l2_crop *a)
{
struct tvp5150 *decoder = container_of(sd, struct tvp5150, sd);
a->c = decoder->rect;
a->type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
return 0;
}
static int tvp5150_cropcap(struct v4l2_subdev *sd, struct v4l2_cropcap *a)
{
struct tvp5150 *decoder = container_of(sd, struct tvp5150, sd);
v4l2_std_id std;
if (a->type != V4L2_BUF_TYPE_VIDEO_CAPTURE)
return -EINVAL;
a->bounds.left = 0;
a->bounds.top = 0;
a->bounds.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)
a->bounds.height = TVP5150_V_MAX_525_60;
else
a->bounds.height = TVP5150_V_MAX_OTHERS;
a->defrect = a->bounds;
a->pixelaspect.numerator = 1;
a->pixelaspect.denominator = 1;
return 0;
}
/****************************************************************************
I2C Command
****************************************************************************/
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;
tvp5150_selmux(sd);
return 0;
}
static int tvp5150_s_raw_fmt(struct v4l2_subdev *sd, struct v4l2_vbi_format *fmt)
{
/* 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)
tvp5150_write(sd, TVP5150_LUMA_PROC_CTL_1, 0x70);
if (fmt->count[0] == 18 && fmt->count[1] == 18) {
tvp5150_write(sd, TVP5150_VERT_BLANKING_START, 0x00);
tvp5150_write(sd, TVP5150_VERT_BLANKING_STOP, 0x01);
}
return 0;
}
static int tvp5150_s_sliced_fmt(struct v4l2_subdev *sd, struct v4l2_sliced_vbi_format *svbi)
{
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, vbi_ram_default,
svbi->service_lines[0][i], 0xf0, i, 3);
}
/* Enables FIFO */
tvp5150_write(sd, TVP5150_FIFO_OUT_CTRL, 1);
} else {
/* Disables FIFO*/
tvp5150_write(sd, TVP5150_FIFO_OUT_CTRL, 0);
/* Disable Full Field */
tvp5150_write(sd, TVP5150_FULL_FIELD_ENA, 0);
/* Disable Line modes */
for (i = TVP5150_LINE_MODE_INI; i <= TVP5150_LINE_MODE_END; i++)
tvp5150_write(sd, 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, vbi_ram_default, 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) {
v4l2_err(sd, "%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)
{
tvp5150_write(sd, reg->reg & 0xff, reg->val & 0xff);
return 0;
}
#endif
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 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,
.s_std = tvp5150_s_std,
.reset = tvp5150_reset,
#ifdef CONFIG_VIDEO_ADV_DEBUG
.g_register = tvp5150_g_register,
.s_register = tvp5150_s_register,
#endif
};
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_routing = tvp5150_s_routing,
.enum_mbus_fmt = tvp5150_enum_mbus_fmt,
.s_mbus_fmt = tvp5150_mbus_fmt,
.try_mbus_fmt = tvp5150_mbus_fmt,
.g_mbus_fmt = tvp5150_mbus_fmt,
.s_crop = tvp5150_s_crop,
.g_crop = tvp5150_g_crop,
.cropcap = tvp5150_cropcap,
};
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_ops tvp5150_ops = {
.core = &tvp5150_core_ops,
.tuner = &tvp5150_tuner_ops,
.video = &tvp5150_video_ops,
.vbi = &tvp5150_vbi_ops,
};
/****************************************************************************
I2C Client & Driver
****************************************************************************/
static int tvp5150_probe(struct i2c_client *c,
const struct i2c_device_id *id)
{
struct tvp5150 *core;
struct v4l2_subdev *sd;
int tvp5150_id[4];
int i, 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;
core = devm_kzalloc(&c->dev, sizeof(*core), GFP_KERNEL);
if (!core)
return -ENOMEM;
sd = &core->sd;
v4l2_i2c_subdev_init(sd, c, &tvp5150_ops);
/*
* Read consequent registers - TVP5150_MSB_DEV_ID, TVP5150_LSB_DEV_ID,
* TVP5150_ROM_MAJOR_VER, TVP5150_ROM_MINOR_VER
*/
for (i = 0; i < 4; i++) {
res = tvp5150_read(sd, TVP5150_MSB_DEV_ID + i);
if (res < 0)
return res;
tvp5150_id[i] = res;
}
v4l_info(c, "chip found @ 0x%02x (%s)\n",
c->addr << 1, c->adapter->name);
if (tvp5150_id[2] == 4 && tvp5150_id[3] == 0) { /* Is TVP5150AM1 */
v4l2_info(sd, "tvp%02x%02xam1 detected.\n",
tvp5150_id[0], tvp5150_id[1]);
/* ITU-T BT.656.4 timing */
tvp5150_write(sd, TVP5150_REV_SELECT, 0);
} else {
/* Is TVP5150A */
if (tvp5150_id[2] == 3 || tvp5150_id[3] == 0x21) {
v4l2_info(sd, "tvp%02x%02xa detected.\n",
tvp5150_id[2], tvp5150_id[3]);
} else {
v4l2_info(sd, "*** unknown tvp%02x%02x chip detected.\n",
tvp5150_id[2], tvp5150_id[3]);
v4l2_info(sd, "*** Rom ver is %d.%d\n",
tvp5150_id[2], tvp5150_id[3]);
}
}
core->norm = V4L2_STD_ALL; /* Default is autodetect */
core->input = TVP5150_COMPOSITE1;
core->enable = 1;
v4l2_ctrl_handler_init(&core->hdl, 4);
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);
sd->ctrl_handler = &core->hdl;
if (core->hdl.error) {
res = core->hdl.error;
v4l2_ctrl_handler_free(&core->hdl);
return res;
}
v4l2_ctrl_handler_setup(&core->hdl);
/* Default is no cropping */
core->rect.top = 0;
if (tvp5150_read_std(sd) & V4L2_STD_525_60)
core->rect.height = TVP5150_V_MAX_525_60;
else
core->rect.height = TVP5150_V_MAX_OTHERS;
core->rect.left = 0;
core->rect.width = TVP5150_H_MAX;
if (debug > 1)
tvp5150_log_status(sd);
return 0;
}
static int tvp5150_remove(struct i2c_client *c)
{
struct v4l2_subdev *sd = i2c_get_clientdata(c);
struct tvp5150 *decoder = to_tvp5150(sd);
v4l2_dbg(1, debug, sd,
"tvp5150.c: removing tvp5150 adapter on address 0x%x\n",
c->addr << 1);
v4l2_device_unregister_subdev(sd);
v4l2_ctrl_handler_free(&decoder->hdl);
return 0;
}
/* ----------------------------------------------------------------------- */
static const struct i2c_device_id tvp5150_id[] = {
{ "tvp5150", 0 },
{ }
};
MODULE_DEVICE_TABLE(i2c, tvp5150_id);
static struct i2c_driver tvp5150_driver = {
.driver = {
.owner = THIS_MODULE,
.name = "tvp5150",
},
.probe = tvp5150_probe,
.remove = tvp5150_remove,
.id_table = tvp5150_id,
};
module_i2c_driver(tvp5150_driver);
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