// SPDX-License-Identifier: GPL-2.0+
// saa711x - Philips SAA711x video decoder driver
// This driver can work with saa7111, saa7111a, saa7113, saa7114,
// saa7115 and saa7118.
//
// Based on saa7114 driver by Maxim Yevtyushkin, which is based on
// the saa7111 driver by Dave Perks.
//
// Copyright (C) 1998 Dave Perks <dperks@ibm.net>
// Copyright (C) 2002 Maxim Yevtyushkin <max@linuxmedialabs.com>
//
// Slight changes for video timing and attachment output by
// Wolfgang Scherr <scherr@net4you.net>
//
// Moved over to the linux >= 2.4.x i2c protocol (1/1/2003)
// by Ronald Bultje <rbultje@ronald.bitfreak.net>
//
// Added saa7115 support by Kevin Thayer <nufan_wfk at yahoo.com>
// (2/17/2003)
//
// VBI support (2004) and cleanups (2005) by Hans Verkuil <hverkuil@xs4all.nl>
//
// Copyright (c) 2005-2006 Mauro Carvalho Chehab <mchehab@kernel.org>
// SAA7111, SAA7113 and SAA7118 support
#include "saa711x_regs.h"
#include <linux/bitops.h>
#include <linux/kernel.h>
#include <linux/module.h>
#include <linux/slab.h>
#include <linux/i2c.h>
#include <linux/videodev2.h>
#include <media/v4l2-device.h>
#include <media/v4l2-ctrls.h>
#include <media/v4l2-mc.h>
#include <media/i2c/saa7115.h>
#include <asm /div64.h>
#define VRES_60HZ (480 +16 )
MODULE_DESCRIPTION("Philips SAA7111/SAA7113/SAA7114/SAA7115/SAA7118 video decoder driver" );
MODULE_AUTHOR( "Maxim Yevtyushkin, Kevin Thayer, Chris Kennedy, "
"Hans Verkuil, Mauro Carvalho Chehab" );
MODULE_LICENSE("GPL" );
static bool debug;
module_param(debug, bool , 0644 );
MODULE_PARM_DESC(debug, "Debug level (0-1)" );
enum saa711x_model {
SAA7111A,
SAA7111,
SAA7113,
GM7113C,
SAA7114,
SAA7115,
SAA7118,
};
enum saa711x_pads {
SAA711X_PAD_IF_INPUT,
SAA711X_PAD_VID_OUT,
SAA711X_NUM_PADS
};
struct saa711x_state {
struct v4l2_subdev sd;
#ifdef CONFIG_MEDIA_CONTROLLER
struct media_pad pads[SAA711X_NUM_PADS];
#endif
struct v4l2_ctrl_handler hdl;
struct {
/* chroma gain control cluster */
struct v4l2_ctrl *agc;
struct v4l2_ctrl *gain;
};
v4l2_std_id std;
int input;
int output;
int enable;
int radio;
int width;
int height;
enum saa711x_model ident;
u32 audclk_freq;
u32 crystal_freq;
bool ucgc;
u8 cgcdiv;
bool apll;
bool double_asclk;
};
static inline struct saa711x_state *to_state(struct v4l2_subdev *sd)
{
return container_of(sd, struct saa711x_state, sd);
}
static inline struct v4l2_subdev *to_sd(struct v4l2_ctrl *ctrl)
{
return &container_of(ctrl->handler, struct saa711x_state, hdl)->sd;
}
/* ----------------------------------------------------------------------- */
static inline int saa711x_write(struct v4l2_subdev *sd, u8 reg, u8 value)
{
struct i2c_client *client = v4l2_get_subdevdata(sd);
return i2c_smbus_write_byte_data(client, reg, value);
}
/* Sanity routine to check if a register is present */
static int saa711x_has_reg(const int id, const u8 reg)
{
if (id == SAA7111)
return reg < 0 x20 && reg != 0 x01 && reg != 0 x0f &&
(reg < 0 x13 || reg > 0 x19) && reg != 0 x1d && reg != 0 x1e;
if (id == SAA7111A)
return reg < 0 x20 && reg != 0 x01 && reg != 0 x0f &&
reg != 0 x14 && reg != 0 x18 && reg != 0 x19 &&
reg != 0 x1d && reg != 0 x1e;
/* common for saa7113/4/5/8 */
if (unlikely((reg >= 0 x3b && reg <= 0 x3f) || reg == 0 x5c || reg == 0 x5f ||
reg == 0 xa3 || reg == 0 xa7 || reg == 0 xab || reg == 0 xaf || (reg >= 0 xb5 && reg <= 0 xb7) ||
reg == 0 xd3 || reg == 0 xd7 || reg == 0 xdb || reg == 0 xdf || (reg >= 0 xe5 && reg <= 0 xe7) ||
reg == 0 x82 || (reg >= 0 x89 && reg <= 0 x8e)))
return 0 ;
switch (id) {
case GM7113C:
return reg != 0 x14 && (reg < 0 x18 || reg > 0 x1e) && reg < 0 x20;
case SAA7113:
return reg != 0 x14 && (reg < 0 x18 || reg > 0 x1e) && (reg < 0 x20 || reg > 0 x3f) &&
reg != 0 x5d && reg < 0 x63;
case SAA7114:
return (reg < 0 x1a || reg > 0 x1e) && (reg < 0 x20 || reg > 0 x2f) &&
(reg < 0 x63 || reg > 0 x7f) && reg != 0 x33 && reg != 0 x37 &&
reg != 0 x81 && reg < 0 xf0;
case SAA7115:
return (reg < 0 x20 || reg > 0 x2f) && reg != 0 x65 && (reg < 0 xfc || reg > 0 xfe);
case SAA7118:
return (reg < 0 x1a || reg > 0 x1d) && (reg < 0 x20 || reg > 0 x22) &&
(reg < 0 x26 || reg > 0 x28) && reg != 0 x33 && reg != 0 x37 &&
(reg < 0 x63 || reg > 0 x7f) && reg != 0 x81 && reg < 0 xf0;
}
return 1 ;
}
static int saa711x_writeregs(struct v4l2_subdev *sd, const unsigned char *regs)
{
struct saa711x_state *state = to_state(sd);
unsigned char reg, data;
while (*regs != 0 x00) {
reg = *(regs++);
data = *(regs++);
/* According with datasheets, reserved regs should be
filled with 0 - seems better not to touch on they */
if (saa711x_has_reg(state->ident, reg)) {
if (saa711x_write(sd, reg, data) < 0 )
return -1 ;
} else {
v4l2_dbg(1 , debug, sd, "tried to access reserved reg 0x%02x\n" , reg);
}
}
return 0 ;
}
static inline int saa711x_read(struct v4l2_subdev *sd, u8 reg)
{
struct i2c_client *client = v4l2_get_subdevdata(sd);
return i2c_smbus_read_byte_data(client, reg);
}
/* ----------------------------------------------------------------------- */
/* SAA7111 initialization table */
static const unsigned char saa7111_init[] = {
R_01_INC_DELAY, 0 x00, /* reserved */
/*front end */
R_02_INPUT_CNTL_1, 0 xd0, /* FUSE=3, GUDL=2, MODE=0 */
R_03_INPUT_CNTL_2, 0 x23, /* HLNRS=0, VBSL=1, WPOFF=0, HOLDG=0,
* GAFIX=0, GAI1=256, GAI2=256 */
R_04_INPUT_CNTL_3, 0 x00, /* GAI1=256 */
R_05_INPUT_CNTL_4, 0 x00, /* GAI2=256 */
/* decoder */
R_06_H_SYNC_START, 0 xf3, /* HSB at 13(50Hz) / 17(60Hz)
* pixels after end of last line */
R_07_H_SYNC_STOP, 0 xe8, /* HSS seems to be needed to
* work with NTSC, too */
R_08_SYNC_CNTL, 0 xc8, /* AUFD=1, FSEL=1, EXFIL=0,
* VTRC=1, HPLL=0, VNOI=0 */
R_09_LUMA_CNTL, 0 x01, /* BYPS=0, PREF=0, BPSS=0,
* VBLB=0, UPTCV=0, APER=1 */
R_0A_LUMA_BRIGHT_CNTL, 0 x80,
R_0B_LUMA_CONTRAST_CNTL, 0 x47, /* 0b - CONT=1.109 */
R_0C_CHROMA_SAT_CNTL, 0 x40,
R_0D_CHROMA_HUE_CNTL, 0 x00,
R_0E_CHROMA_CNTL_1, 0 x01, /* 0e - CDTO=0, CSTD=0, DCCF=0,
* FCTC=0, CHBW=1 */
R_0F_CHROMA_GAIN_CNTL, 0 x00, /* reserved */
R_10_CHROMA_CNTL_2, 0 x48, /* 10 - OFTS=1, HDEL=0, VRLN=1, YDEL=0 */
R_11_MODE_DELAY_CNTL, 0 x1c, /* 11 - GPSW=0, CM99=0, FECO=0, COMPO=1,
* OEYC=1, OEHV=1, VIPB=0, COLO=0 */
R_12_RT_SIGNAL_CNTL, 0 x00, /* 12 - output control 2 */
R_13_RT_X_PORT_OUT_CNTL, 0 x00, /* 13 - output control 3 */
R_14_ANAL_ADC_COMPAT_CNTL, 0 x00,
R_15_VGATE_START_FID_CHG, 0 x00,
R_16_VGATE_STOP, 0 x00,
R_17_MISC_VGATE_CONF_AND_MSB, 0 x00,
0 x00, 0 x00
};
/*
* This table has one illegal value , and some values that are not
* correct according to the datasheet initialization table .
*
* If you need a table with legal / default values tell the driver in
* i2c_board_info . platform_data , and you will get the gm7113c_init
* table instead .
*/
/* SAA7113 Init codes */
static const unsigned char saa7113_init[] = {
R_01_INC_DELAY, 0 x08,
R_02_INPUT_CNTL_1, 0 xc2,
R_03_INPUT_CNTL_2, 0 x30,
R_04_INPUT_CNTL_3, 0 x00,
R_05_INPUT_CNTL_4, 0 x00,
R_06_H_SYNC_START, 0 x89, /* Illegal value -119,
* min. value = -108 (0x94) */
R_07_H_SYNC_STOP, 0 x0d,
R_08_SYNC_CNTL, 0 x88, /* Not datasheet default.
* HTC = VTR mode, should be 0x98 */
R_09_LUMA_CNTL, 0 x01,
R_0A_LUMA_BRIGHT_CNTL, 0 x80,
R_0B_LUMA_CONTRAST_CNTL, 0 x47,
R_0C_CHROMA_SAT_CNTL, 0 x40,
R_0D_CHROMA_HUE_CNTL, 0 x00,
R_0E_CHROMA_CNTL_1, 0 x01,
R_0F_CHROMA_GAIN_CNTL, 0 x2a,
R_10_CHROMA_CNTL_2, 0 x08, /* Not datsheet default.
* VRLN enabled, should be 0x00 */
R_11_MODE_DELAY_CNTL, 0 x0c,
R_12_RT_SIGNAL_CNTL, 0 x07, /* Not datasheet default,
* should be 0x01 */
R_13_RT_X_PORT_OUT_CNTL, 0 x00,
R_14_ANAL_ADC_COMPAT_CNTL, 0 x00,
R_15_VGATE_START_FID_CHG, 0 x00,
R_16_VGATE_STOP, 0 x00,
R_17_MISC_VGATE_CONF_AND_MSB, 0 x00,
0 x00, 0 x00
};
/*
* GM7113C is a clone of the SAA7113 chip
* This init table is copied out of the saa7113 datasheet .
* In R_08 we enable " Automatic Field Detection " [ AUFD ] ,
* this is disabled when saa711x_set_v4lstd is called .
*/
static const unsigned char gm7113c_init[] = {
R_01_INC_DELAY, 0 x08,
R_02_INPUT_CNTL_1, 0 xc0,
R_03_INPUT_CNTL_2, 0 x33,
R_04_INPUT_CNTL_3, 0 x00,
R_05_INPUT_CNTL_4, 0 x00,
R_06_H_SYNC_START, 0 xe9,
R_07_H_SYNC_STOP, 0 x0d,
R_08_SYNC_CNTL, 0 x98,
R_09_LUMA_CNTL, 0 x01,
R_0A_LUMA_BRIGHT_CNTL, 0 x80,
R_0B_LUMA_CONTRAST_CNTL, 0 x47,
R_0C_CHROMA_SAT_CNTL, 0 x40,
R_0D_CHROMA_HUE_CNTL, 0 x00,
R_0E_CHROMA_CNTL_1, 0 x01,
R_0F_CHROMA_GAIN_CNTL, 0 x2a,
R_10_CHROMA_CNTL_2, 0 x00,
R_11_MODE_DELAY_CNTL, 0 x0c,
R_12_RT_SIGNAL_CNTL, 0 x01,
R_13_RT_X_PORT_OUT_CNTL, 0 x00,
R_14_ANAL_ADC_COMPAT_CNTL, 0 x00,
R_15_VGATE_START_FID_CHG, 0 x00,
R_16_VGATE_STOP, 0 x00,
R_17_MISC_VGATE_CONF_AND_MSB, 0 x00,
0 x00, 0 x00
};
/* If a value differs from the Hauppauge driver values, then the comment starts with
' was 0 xXX ' to denote the Hauppauge value . Otherwise the value is identical to what the
Hauppauge driver sets. */
/* SAA7114 and SAA7115 initialization table */
static const unsigned char saa7115_init_auto_input[] = {
/* Front-End Part */
R_01_INC_DELAY, 0 x48, /* white peak control disabled */
R_03_INPUT_CNTL_2, 0 x20, /* was 0x30. 0x20: long vertical blanking */
R_04_INPUT_CNTL_3, 0 x90, /* analog gain set to 0 */
R_05_INPUT_CNTL_4, 0 x90, /* analog gain set to 0 */
/* Decoder Part */
R_06_H_SYNC_START, 0 xeb, /* horiz sync begin = -21 */
R_07_H_SYNC_STOP, 0 xe0, /* horiz sync stop = -17 */
R_09_LUMA_CNTL, 0 x53, /* 0x53, was 0x56 for 60hz. luminance control */
R_0A_LUMA_BRIGHT_CNTL, 0 x80, /* was 0x88. decoder brightness, 0x80 is itu standard */
R_0B_LUMA_CONTRAST_CNTL, 0 x44, /* was 0x48. decoder contrast, 0x44 is itu standard */
R_0C_CHROMA_SAT_CNTL, 0 x40, /* was 0x47. decoder saturation, 0x40 is itu standard */
R_0D_CHROMA_HUE_CNTL, 0 x00,
R_0F_CHROMA_GAIN_CNTL, 0 x00, /* use automatic gain */
R_10_CHROMA_CNTL_2, 0 x06, /* chroma: active adaptive combfilter */
R_11_MODE_DELAY_CNTL, 0 x00,
R_12_RT_SIGNAL_CNTL, 0 x9d, /* RTS0 output control: VGATE */
R_13_RT_X_PORT_OUT_CNTL, 0 x80, /* ITU656 standard mode, RTCO output enable RTCE */
R_14_ANAL_ADC_COMPAT_CNTL, 0 x00,
R_18_RAW_DATA_GAIN_CNTL, 0 x40, /* gain 0x00 = nominal */
R_19_RAW_DATA_OFF_CNTL, 0 x80,
R_1A_COLOR_KILL_LVL_CNTL, 0 x77, /* recommended value */
R_1B_MISC_TVVCRDET, 0 x42, /* recommended value */
R_1C_ENHAN_COMB_CTRL1, 0 xa9, /* recommended value */
R_1D_ENHAN_COMB_CTRL2, 0 x01, /* recommended value */
R_80_GLOBAL_CNTL_1, 0 x0, /* No tasks enabled at init */
/* Power Device Control */
R_88_POWER_SAVE_ADC_PORT_CNTL, 0 xd0, /* reset device */
R_88_POWER_SAVE_ADC_PORT_CNTL, 0 xf0, /* set device programmed, all in operational mode */
0 x00, 0 x00
};
/* Used to reset saa7113, saa7114 and saa7115 */
static const unsigned char saa7115_cfg_reset_scaler[] = {
R_87_I_PORT_I_O_ENA_OUT_CLK_AND_GATED, 0 x00, /* disable I-port output */
R_88_POWER_SAVE_ADC_PORT_CNTL, 0 xd0, /* reset scaler */
R_88_POWER_SAVE_ADC_PORT_CNTL, 0 xf0, /* activate scaler */
R_87_I_PORT_I_O_ENA_OUT_CLK_AND_GATED, 0 x01, /* enable I-port output */
0 x00, 0 x00
};
/* ============== SAA7715 VIDEO templates ============= */
static const unsigned char saa7115_cfg_60hz_video[] = {
R_80_GLOBAL_CNTL_1, 0 x00, /* reset tasks */
R_88_POWER_SAVE_ADC_PORT_CNTL, 0 xd0, /* reset scaler */
R_15_VGATE_START_FID_CHG, 0 x03,
R_16_VGATE_STOP, 0 x11,
R_17_MISC_VGATE_CONF_AND_MSB, 0 x9c,
R_08_SYNC_CNTL, 0 x68, /* 0xBO: auto detection, 0x68 = NTSC */
R_0E_CHROMA_CNTL_1, 0 x07, /* video autodetection is on */
R_5A_V_OFF_FOR_SLICER, 0 x06, /* standard 60hz value for ITU656 line counting */
/* Task A */
R_90_A_TASK_HANDLING_CNTL, 0 x80,
R_91_A_X_PORT_FORMATS_AND_CONF, 0 x48,
R_92_A_X_PORT_INPUT_REFERENCE_SIGNAL, 0 x40,
R_93_A_I_PORT_OUTPUT_FORMATS_AND_CONF, 0 x84,
/* hoffset low (input), 0x0002 is minimum */
R_94_A_HORIZ_INPUT_WINDOW_START, 0 x01,
R_95_A_HORIZ_INPUT_WINDOW_START_MSB, 0 x00,
/* hsize low (input), 0x02d0 = 720 */
R_96_A_HORIZ_INPUT_WINDOW_LENGTH, 0 xd0,
R_97_A_HORIZ_INPUT_WINDOW_LENGTH_MSB, 0 x02,
R_98_A_VERT_INPUT_WINDOW_START, 0 x05,
R_99_A_VERT_INPUT_WINDOW_START_MSB, 0 x00,
R_9A_A_VERT_INPUT_WINDOW_LENGTH, 0 x0c,
R_9B_A_VERT_INPUT_WINDOW_LENGTH_MSB, 0 x00,
R_9C_A_HORIZ_OUTPUT_WINDOW_LENGTH, 0 xa0,
R_9D_A_HORIZ_OUTPUT_WINDOW_LENGTH_MSB, 0 x05,
R_9E_A_VERT_OUTPUT_WINDOW_LENGTH, 0 x0c,
R_9F_A_VERT_OUTPUT_WINDOW_LENGTH_MSB, 0 x00,
/* Task B */
R_C0_B_TASK_HANDLING_CNTL, 0 x00,
R_C1_B_X_PORT_FORMATS_AND_CONF, 0 x08,
R_C2_B_INPUT_REFERENCE_SIGNAL_DEFINITION, 0 x00,
R_C3_B_I_PORT_FORMATS_AND_CONF, 0 x80,
/* 0x0002 is minimum */
R_C4_B_HORIZ_INPUT_WINDOW_START, 0 x02,
R_C5_B_HORIZ_INPUT_WINDOW_START_MSB, 0 x00,
/* 0x02d0 = 720 */
R_C6_B_HORIZ_INPUT_WINDOW_LENGTH, 0 xd0,
R_C7_B_HORIZ_INPUT_WINDOW_LENGTH_MSB, 0 x02,
/* vwindow start 0x12 = 18 */
R_C8_B_VERT_INPUT_WINDOW_START, 0 x12,
R_C9_B_VERT_INPUT_WINDOW_START_MSB, 0 x00,
/* vwindow length 0xf8 = 248 */
R_CA_B_VERT_INPUT_WINDOW_LENGTH, VRES_60HZ>>1 ,
R_CB_B_VERT_INPUT_WINDOW_LENGTH_MSB, VRES_60HZ>>9 ,
/* hwindow 0x02d0 = 720 */
R_CC_B_HORIZ_OUTPUT_WINDOW_LENGTH, 0 xd0,
R_CD_B_HORIZ_OUTPUT_WINDOW_LENGTH_MSB, 0 x02,
R_F0_LFCO_PER_LINE, 0 xad, /* Set PLL Register. 60hz 525 lines per frame, 27 MHz */
R_F1_P_I_PARAM_SELECT, 0 x05, /* low bit with 0xF0 */
R_F5_PULSGEN_LINE_LENGTH, 0 xad,
R_F6_PULSE_A_POS_LSB_AND_PULSEGEN_CONFIG, 0 x01,
0 x00, 0 x00
};
static const unsigned char saa7115_cfg_50hz_video[] = {
R_80_GLOBAL_CNTL_1, 0 x00,
R_88_POWER_SAVE_ADC_PORT_CNTL, 0 xd0, /* reset scaler */
R_15_VGATE_START_FID_CHG, 0 x37, /* VGATE start */
R_16_VGATE_STOP, 0 x16,
R_17_MISC_VGATE_CONF_AND_MSB, 0 x99,
R_08_SYNC_CNTL, 0 x28, /* 0x28 = PAL */
R_0E_CHROMA_CNTL_1, 0 x07,
R_5A_V_OFF_FOR_SLICER, 0 x03, /* standard 50hz value */
/* Task A */
R_90_A_TASK_HANDLING_CNTL, 0 x81,
R_91_A_X_PORT_FORMATS_AND_CONF, 0 x48,
R_92_A_X_PORT_INPUT_REFERENCE_SIGNAL, 0 x40,
R_93_A_I_PORT_OUTPUT_FORMATS_AND_CONF, 0 x84,
/* This is weird: the datasheet says that you should use 2 as the minimum value, */
/* but Hauppauge uses 0, and changing that to 2 causes indeed problems (for 50hz) */
/* hoffset low (input), 0x0002 is minimum */
R_94_A_HORIZ_INPUT_WINDOW_START, 0 x00,
R_95_A_HORIZ_INPUT_WINDOW_START_MSB, 0 x00,
/* hsize low (input), 0x02d0 = 720 */
R_96_A_HORIZ_INPUT_WINDOW_LENGTH, 0 xd0,
R_97_A_HORIZ_INPUT_WINDOW_LENGTH_MSB, 0 x02,
R_98_A_VERT_INPUT_WINDOW_START, 0 x03,
R_99_A_VERT_INPUT_WINDOW_START_MSB, 0 x00,
/* vsize 0x12 = 18 */
R_9A_A_VERT_INPUT_WINDOW_LENGTH, 0 x12,
R_9B_A_VERT_INPUT_WINDOW_LENGTH_MSB, 0 x00,
/* hsize 0x05a0 = 1440 */
R_9C_A_HORIZ_OUTPUT_WINDOW_LENGTH, 0 xa0,
R_9D_A_HORIZ_OUTPUT_WINDOW_LENGTH_MSB, 0 x05, /* hsize hi (output) */
R_9E_A_VERT_OUTPUT_WINDOW_LENGTH, 0 x12, /* vsize low (output), 0x12 = 18 */
R_9F_A_VERT_OUTPUT_WINDOW_LENGTH_MSB, 0 x00, /* vsize hi (output) */
/* Task B */
R_C0_B_TASK_HANDLING_CNTL, 0 x00,
R_C1_B_X_PORT_FORMATS_AND_CONF, 0 x08,
R_C2_B_INPUT_REFERENCE_SIGNAL_DEFINITION, 0 x00,
R_C3_B_I_PORT_FORMATS_AND_CONF, 0 x80,
/* This is weird: the datasheet says that you should use 2 as the minimum value, */
/* but Hauppauge uses 0, and changing that to 2 causes indeed problems (for 50hz) */
/* hoffset low (input), 0x0002 is minimum. See comment above. */
R_C4_B_HORIZ_INPUT_WINDOW_START, 0 x00,
R_C5_B_HORIZ_INPUT_WINDOW_START_MSB, 0 x00,
/* hsize 0x02d0 = 720 */
R_C6_B_HORIZ_INPUT_WINDOW_LENGTH, 0 xd0,
R_C7_B_HORIZ_INPUT_WINDOW_LENGTH_MSB, 0 x02,
/* voffset 0x16 = 22 */
R_C8_B_VERT_INPUT_WINDOW_START, 0 x16,
R_C9_B_VERT_INPUT_WINDOW_START_MSB, 0 x00,
/* vsize 0x0120 = 288 */
R_CA_B_VERT_INPUT_WINDOW_LENGTH, 0 x20,
R_CB_B_VERT_INPUT_WINDOW_LENGTH_MSB, 0 x01,
/* hsize 0x02d0 = 720 */
R_CC_B_HORIZ_OUTPUT_WINDOW_LENGTH, 0 xd0,
R_CD_B_HORIZ_OUTPUT_WINDOW_LENGTH_MSB, 0 x02,
R_F0_LFCO_PER_LINE, 0 xb0, /* Set PLL Register. 50hz 625 lines per frame, 27 MHz */
R_F1_P_I_PARAM_SELECT, 0 x05, /* low bit with 0xF0, (was 0x05) */
R_F5_PULSGEN_LINE_LENGTH, 0 xb0,
R_F6_PULSE_A_POS_LSB_AND_PULSEGEN_CONFIG, 0 x01,
0 x00, 0 x00
};
/* ============== SAA7715 VIDEO templates (end) ======= */
static const unsigned char saa7115_cfg_vbi_on[] = {
R_80_GLOBAL_CNTL_1, 0 x00, /* reset tasks */
R_88_POWER_SAVE_ADC_PORT_CNTL, 0 xd0, /* reset scaler */
R_80_GLOBAL_CNTL_1, 0 x30, /* Activate both tasks */
R_88_POWER_SAVE_ADC_PORT_CNTL, 0 xf0, /* activate scaler */
R_87_I_PORT_I_O_ENA_OUT_CLK_AND_GATED, 0 x01, /* Enable I-port output */
0 x00, 0 x00
};
static const unsigned char saa7115_cfg_vbi_off[] = {
R_80_GLOBAL_CNTL_1, 0 x00, /* reset tasks */
R_88_POWER_SAVE_ADC_PORT_CNTL, 0 xd0, /* reset scaler */
R_80_GLOBAL_CNTL_1, 0 x20, /* Activate only task "B" */
R_88_POWER_SAVE_ADC_PORT_CNTL, 0 xf0, /* activate scaler */
R_87_I_PORT_I_O_ENA_OUT_CLK_AND_GATED, 0 x01, /* Enable I-port output */
0 x00, 0 x00
};
static const unsigned char saa7115_init_misc[] = {
R_81_V_SYNC_FLD_ID_SRC_SEL_AND_RETIMED_V_F, 0 x01,
R_83_X_PORT_I_O_ENA_AND_OUT_CLK, 0 x01,
R_84_I_PORT_SIGNAL_DEF, 0 x20,
R_85_I_PORT_SIGNAL_POLAR, 0 x21,
R_86_I_PORT_FIFO_FLAG_CNTL_AND_ARBIT, 0 xc5,
R_87_I_PORT_I_O_ENA_OUT_CLK_AND_GATED, 0 x01,
/* Task A */
R_A0_A_HORIZ_PRESCALING, 0 x01,
R_A1_A_ACCUMULATION_LENGTH, 0 x00,
R_A2_A_PRESCALER_DC_GAIN_AND_FIR_PREFILTER, 0 x00,
/* Configure controls at nominal value*/
R_A4_A_LUMA_BRIGHTNESS_CNTL, 0 x80,
R_A5_A_LUMA_CONTRAST_CNTL, 0 x40,
R_A6_A_CHROMA_SATURATION_CNTL, 0 x40,
/* note: 2 x zoom ensures that VBI lines have same length as video lines. */
R_A8_A_HORIZ_LUMA_SCALING_INC, 0 x00,
R_A9_A_HORIZ_LUMA_SCALING_INC_MSB, 0 x02,
R_AA_A_HORIZ_LUMA_PHASE_OFF, 0 x00,
/* must be horiz lum scaling / 2 */
R_AC_A_HORIZ_CHROMA_SCALING_INC, 0 x00,
R_AD_A_HORIZ_CHROMA_SCALING_INC_MSB, 0 x01,
/* must be offset luma / 2 */
R_AE_A_HORIZ_CHROMA_PHASE_OFF, 0 x00,
R_B0_A_VERT_LUMA_SCALING_INC, 0 x00,
R_B1_A_VERT_LUMA_SCALING_INC_MSB, 0 x04,
R_B2_A_VERT_CHROMA_SCALING_INC, 0 x00,
R_B3_A_VERT_CHROMA_SCALING_INC_MSB, 0 x04,
R_B4_A_VERT_SCALING_MODE_CNTL, 0 x01,
R_B8_A_VERT_CHROMA_PHASE_OFF_00, 0 x00,
R_B9_A_VERT_CHROMA_PHASE_OFF_01, 0 x00,
R_BA_A_VERT_CHROMA_PHASE_OFF_10, 0 x00,
R_BB_A_VERT_CHROMA_PHASE_OFF_11, 0 x00,
R_BC_A_VERT_LUMA_PHASE_OFF_00, 0 x00,
R_BD_A_VERT_LUMA_PHASE_OFF_01, 0 x00,
R_BE_A_VERT_LUMA_PHASE_OFF_10, 0 x00,
R_BF_A_VERT_LUMA_PHASE_OFF_11, 0 x00,
/* Task B */
R_D0_B_HORIZ_PRESCALING, 0 x01,
R_D1_B_ACCUMULATION_LENGTH, 0 x00,
R_D2_B_PRESCALER_DC_GAIN_AND_FIR_PREFILTER, 0 x00,
/* Configure controls at nominal value*/
R_D4_B_LUMA_BRIGHTNESS_CNTL, 0 x80,
R_D5_B_LUMA_CONTRAST_CNTL, 0 x40,
R_D6_B_CHROMA_SATURATION_CNTL, 0 x40,
/* hor lum scaling 0x0400 = 1 */
R_D8_B_HORIZ_LUMA_SCALING_INC, 0 x00,
R_D9_B_HORIZ_LUMA_SCALING_INC_MSB, 0 x04,
R_DA_B_HORIZ_LUMA_PHASE_OFF, 0 x00,
/* must be hor lum scaling / 2 */
R_DC_B_HORIZ_CHROMA_SCALING, 0 x00,
R_DD_B_HORIZ_CHROMA_SCALING_MSB, 0 x02,
/* must be offset luma / 2 */
R_DE_B_HORIZ_PHASE_OFFSET_CRHOMA, 0 x00,
R_E0_B_VERT_LUMA_SCALING_INC, 0 x00,
R_E1_B_VERT_LUMA_SCALING_INC_MSB, 0 x04,
R_E2_B_VERT_CHROMA_SCALING_INC, 0 x00,
R_E3_B_VERT_CHROMA_SCALING_INC_MSB, 0 x04,
R_E4_B_VERT_SCALING_MODE_CNTL, 0 x01,
R_E8_B_VERT_CHROMA_PHASE_OFF_00, 0 x00,
R_E9_B_VERT_CHROMA_PHASE_OFF_01, 0 x00,
R_EA_B_VERT_CHROMA_PHASE_OFF_10, 0 x00,
R_EB_B_VERT_CHROMA_PHASE_OFF_11, 0 x00,
R_EC_B_VERT_LUMA_PHASE_OFF_00, 0 x00,
R_ED_B_VERT_LUMA_PHASE_OFF_01, 0 x00,
R_EE_B_VERT_LUMA_PHASE_OFF_10, 0 x00,
R_EF_B_VERT_LUMA_PHASE_OFF_11, 0 x00,
R_F2_NOMINAL_PLL2_DTO, 0 x50, /* crystal clock = 24.576 MHz, target = 27MHz */
R_F3_PLL_INCREMENT, 0 x46,
R_F4_PLL2_STATUS, 0 x00,
R_F7_PULSE_A_POS_MSB, 0 x4b, /* not the recommended settings! */
R_F8_PULSE_B_POS, 0 x00,
R_F9_PULSE_B_POS_MSB, 0 x4b,
R_FA_PULSE_C_POS, 0 x00,
R_FB_PULSE_C_POS_MSB, 0 x4b,
/* PLL2 lock detection settings: 71 lines 50% phase error */
R_FF_S_PLL_MAX_PHASE_ERR_THRESH_NUM_LINES, 0 x88,
/* Turn off VBI */
R_40_SLICER_CNTL_1, 0 x20, /* No framing code errors allowed. */
R_41_LCR_BASE, 0 xff,
R_41_LCR_BASE+1 , 0 xff,
R_41_LCR_BASE+2 , 0 xff,
R_41_LCR_BASE+3 , 0 xff,
R_41_LCR_BASE+4 , 0 xff,
R_41_LCR_BASE+5 , 0 xff,
R_41_LCR_BASE+6 , 0 xff,
R_41_LCR_BASE+7 , 0 xff,
R_41_LCR_BASE+8 , 0 xff,
R_41_LCR_BASE+9 , 0 xff,
R_41_LCR_BASE+10 , 0 xff,
R_41_LCR_BASE+11 , 0 xff,
R_41_LCR_BASE+12 , 0 xff,
R_41_LCR_BASE+13 , 0 xff,
R_41_LCR_BASE+14 , 0 xff,
R_41_LCR_BASE+15 , 0 xff,
R_41_LCR_BASE+16 , 0 xff,
R_41_LCR_BASE+17 , 0 xff,
R_41_LCR_BASE+18 , 0 xff,
R_41_LCR_BASE+19 , 0 xff,
R_41_LCR_BASE+20 , 0 xff,
R_41_LCR_BASE+21 , 0 xff,
R_41_LCR_BASE+22 , 0 xff,
R_58_PROGRAM_FRAMING_CODE, 0 x40,
R_59_H_OFF_FOR_SLICER, 0 x47,
R_5B_FLD_OFF_AND_MSB_FOR_H_AND_V_OFF, 0 x83,
R_5D_DID, 0 xbd,
R_5E_SDID, 0 x35,
R_02_INPUT_CNTL_1, 0 xc4, /* input tuner -> input 4, amplifier active */
R_80_GLOBAL_CNTL_1, 0 x20, /* enable task B */
R_88_POWER_SAVE_ADC_PORT_CNTL, 0 xd0,
R_88_POWER_SAVE_ADC_PORT_CNTL, 0 xf0,
0 x00, 0 x00
};
static int saa711x_decode_vps(u8 *dst, u8 *p)
{
static const u8 biphase_tbl[] = {
0 xf0, 0 x78, 0 x70, 0 xf0, 0 xb4, 0 x3c, 0 x34, 0 xb4,
0 xb0, 0 x38, 0 x30, 0 xb0, 0 xf0, 0 x78, 0 x70, 0 xf0,
0 xd2, 0 x5a, 0 x52, 0 xd2, 0 x96, 0 x1e, 0 x16, 0 x96,
0 x92, 0 x1a, 0 x12, 0 x92, 0 xd2, 0 x5a, 0 x52, 0 xd2,
0 xd0, 0 x58, 0 x50, 0 xd0, 0 x94, 0 x1c, 0 x14, 0 x94,
0 x90, 0 x18, 0 x10, 0 x90, 0 xd0, 0 x58, 0 x50, 0 xd0,
0 xf0, 0 x78, 0 x70, 0 xf0, 0 xb4, 0 x3c, 0 x34, 0 xb4,
0 xb0, 0 x38, 0 x30, 0 xb0, 0 xf0, 0 x78, 0 x70, 0 xf0,
0 xe1, 0 x69, 0 x61, 0 xe1, 0 xa5, 0 x2d, 0 x25, 0 xa5,
0 xa1, 0 x29, 0 x21, 0 xa1, 0 xe1, 0 x69, 0 x61, 0 xe1,
0 xc3, 0 x4b, 0 x43, 0 xc3, 0 x87, 0 x0f, 0 x07, 0 x87,
0 x83, 0 x0b, 0 x03, 0 x83, 0 xc3, 0 x4b, 0 x43, 0 xc3,
0 xc1, 0 x49, 0 x41, 0 xc1, 0 x85, 0 x0d, 0 x05, 0 x85,
0 x81, 0 x09, 0 x01, 0 x81, 0 xc1, 0 x49, 0 x41, 0 xc1,
0 xe1, 0 x69, 0 x61, 0 xe1, 0 xa5, 0 x2d, 0 x25, 0 xa5,
0 xa1, 0 x29, 0 x21, 0 xa1, 0 xe1, 0 x69, 0 x61, 0 xe1,
0 xe0, 0 x68, 0 x60, 0 xe0, 0 xa4, 0 x2c, 0 x24, 0 xa4,
0 xa0, 0 x28, 0 x20, 0 xa0, 0 xe0, 0 x68, 0 x60, 0 xe0,
0 xc2, 0 x4a, 0 x42, 0 xc2, 0 x86, 0 x0e, 0 x06, 0 x86,
0 x82, 0 x0a, 0 x02, 0 x82, 0 xc2, 0 x4a, 0 x42, 0 xc2,
0 xc0, 0 x48, 0 x40, 0 xc0, 0 x84, 0 x0c, 0 x04, 0 x84,
0 x80, 0 x08, 0 x00, 0 x80, 0 xc0, 0 x48, 0 x40, 0 xc0,
0 xe0, 0 x68, 0 x60, 0 xe0, 0 xa4, 0 x2c, 0 x24, 0 xa4,
0 xa0, 0 x28, 0 x20, 0 xa0, 0 xe0, 0 x68, 0 x60, 0 xe0,
0 xf0, 0 x78, 0 x70, 0 xf0, 0 xb4, 0 x3c, 0 x34, 0 xb4,
0 xb0, 0 x38, 0 x30, 0 xb0, 0 xf0, 0 x78, 0 x70, 0 xf0,
0 xd2, 0 x5a, 0 x52, 0 xd2, 0 x96, 0 x1e, 0 x16, 0 x96,
0 x92, 0 x1a, 0 x12, 0 x92, 0 xd2, 0 x5a, 0 x52, 0 xd2,
0 xd0, 0 x58, 0 x50, 0 xd0, 0 x94, 0 x1c, 0 x14, 0 x94,
0 x90, 0 x18, 0 x10, 0 x90, 0 xd0, 0 x58, 0 x50, 0 xd0,
0 xf0, 0 x78, 0 x70, 0 xf0, 0 xb4, 0 x3c, 0 x34, 0 xb4,
0 xb0, 0 x38, 0 x30, 0 xb0, 0 xf0, 0 x78, 0 x70, 0 xf0,
};
int i;
u8 c, err = 0 ;
for (i = 0 ; i < 2 * 13 ; i += 2 ) {
err |= biphase_tbl[p[i]] | biphase_tbl[p[i + 1 ]];
c = (biphase_tbl[p[i + 1 ]] & 0 xf) | ((biphase_tbl[p[i]] & 0 xf) << 4 );
dst[i / 2 ] = c;
}
return err & 0 xf0;
}
static int saa711x_decode_wss(u8 *p)
{
static const int wss_bits[8 ] = {
0 , 0 , 0 , 1 , 0 , 1 , 1 , 1
};
unsigned char parity;
int wss = 0 ;
int i;
for (i = 0 ; i < 16 ; i++) {
int b1 = wss_bits[p[i] & 7 ];
int b2 = wss_bits[(p[i] >> 3 ) & 7 ];
if (b1 == b2)
return -1 ;
wss |= b2 << i;
}
parity = wss & 15 ;
parity ^= parity >> 2 ;
parity ^= parity >> 1 ;
if (!(parity & 1 ))
return -1 ;
return wss;
}
static int saa711x_s_clock_freq(struct v4l2_subdev *sd, u32 freq)
{
struct saa711x_state *state = to_state(sd);
u32 acpf;
u32 acni;
u32 hz;
u64 f;
u8 acc = 0 ; /* reg 0x3a, audio clock control */
/* Checks for chips that don't have audio clock (saa7111, saa7113) */
if (!saa711x_has_reg(state->ident, R_30_AUD_MAST_CLK_CYCLES_PER_FIELD))
return 0 ;
v4l2_dbg(1 , debug, sd, "set audio clock freq: %d\n" , freq);
/* sanity check */
if (freq < 32000 || freq > 48000 )
return -EINVAL;
/* hz is the refresh rate times 100 */
hz = (state->std & V4L2_STD_525_60) ? 5994 : 5000 ;
/* acpf = (256 * freq) / field_frequency == (256 * 100 * freq) / hz */
acpf = (25600 * freq) / hz;
/* acni = (256 * freq * 2^23) / crystal_frequency =
( freq * 2 ^ ( 8 + 23 ) ) / crystal_frequency =
(freq << 31) / crystal_frequency */
f = freq;
f = f << 31 ;
do_div(f, state->crystal_freq);
acni = f;
if (state->ucgc) {
acpf = acpf * state->cgcdiv / 16 ;
acni = acni * state->cgcdiv / 16 ;
acc = 0 x80;
if (state->cgcdiv == 3 )
acc |= 0 x40;
}
if (state->apll)
acc |= 0 x08;
if (state->double_asclk) {
acpf <<= 1 ;
acni <<= 1 ;
}
saa711x_write(sd, R_38_CLK_RATIO_AMXCLK_TO_ASCLK, 0 x03);
saa711x_write(sd, R_39_CLK_RATIO_ASCLK_TO_ALRCLK, 0 x10 << state->double_asclk);
saa711x_write(sd, R_3A_AUD_CLK_GEN_BASIC_SETUP, acc);
saa711x_write(sd, R_30_AUD_MAST_CLK_CYCLES_PER_FIELD, acpf & 0 xff);
saa711x_write(sd, R_30_AUD_MAST_CLK_CYCLES_PER_FIELD+1 ,
(acpf >> 8 ) & 0 xff);
saa711x_write(sd, R_30_AUD_MAST_CLK_CYCLES_PER_FIELD+2 ,
(acpf >> 16 ) & 0 x03);
saa711x_write(sd, R_34_AUD_MAST_CLK_NOMINAL_INC, acni & 0 xff);
saa711x_write(sd, R_34_AUD_MAST_CLK_NOMINAL_INC+1 , (acni >> 8 ) & 0 xff);
saa711x_write(sd, R_34_AUD_MAST_CLK_NOMINAL_INC+2 , (acni >> 16 ) & 0 x3f);
state->audclk_freq = freq;
return 0 ;
}
static int saa711x_g_volatile_ctrl(struct v4l2_ctrl *ctrl)
{
struct v4l2_subdev *sd = to_sd(ctrl);
struct saa711x_state *state = to_state(sd);
switch (ctrl->id) {
case V4L2_CID_CHROMA_AGC:
/* chroma gain cluster */
if (state->agc->val)
state->gain->val =
saa711x_read(sd, R_0F_CHROMA_GAIN_CNTL) & 0 x7f;
break ;
}
return 0 ;
}
static int saa711x_s_ctrl(struct v4l2_ctrl *ctrl)
{
struct v4l2_subdev *sd = to_sd(ctrl);
struct saa711x_state *state = to_state(sd);
switch (ctrl->id) {
case V4L2_CID_BRIGHTNESS:
saa711x_write(sd, R_0A_LUMA_BRIGHT_CNTL, ctrl->val);
break ;
case V4L2_CID_CONTRAST:
saa711x_write(sd, R_0B_LUMA_CONTRAST_CNTL, ctrl->val);
break ;
case V4L2_CID_SATURATION:
saa711x_write(sd, R_0C_CHROMA_SAT_CNTL, ctrl->val);
break ;
case V4L2_CID_HUE:
saa711x_write(sd, R_0D_CHROMA_HUE_CNTL, ctrl->val);
break ;
case V4L2_CID_CHROMA_AGC:
/* chroma gain cluster */
if (state->agc->val)
saa711x_write(sd, R_0F_CHROMA_GAIN_CNTL, state->gain->val);
else
saa711x_write(sd, R_0F_CHROMA_GAIN_CNTL, state->gain->val | 0 x80);
break ;
default :
return -EINVAL;
}
return 0 ;
}
static int saa711x_set_size(struct v4l2_subdev *sd, int width, int height)
{
struct saa711x_state *state = to_state(sd);
int HPSC, HFSC;
int VSCY;
int res;
int is_50hz = state->std & V4L2_STD_625_50;
int Vsrc = is_50hz ? 576 : 480 ;
v4l2_dbg(1 , debug, sd, "decoder set size to %ix%i\n" , width, height);
/* FIXME need better bounds checking here */
if ((width < 1 ) || (width > 1440 ))
return -EINVAL;
if ((height < 1 ) || (height > Vsrc))
return -EINVAL;
if (!saa711x_has_reg(state->ident, R_D0_B_HORIZ_PRESCALING)) {
/* Decoder only supports 720 columns and 480 or 576 lines */
if (width != 720 )
return -EINVAL;
if (height != Vsrc)
return -EINVAL;
}
state->width = width;
state->height = height;
if (!saa711x_has_reg(state->ident, R_CC_B_HORIZ_OUTPUT_WINDOW_LENGTH))
return 0 ;
/* probably have a valid size, let's set it */
/* Set output width/height */
/* width */
saa711x_write(sd, R_CC_B_HORIZ_OUTPUT_WINDOW_LENGTH,
(u8) (width & 0 xff));
saa711x_write(sd, R_CD_B_HORIZ_OUTPUT_WINDOW_LENGTH_MSB,
(u8) ((width >> 8 ) & 0 xff));
/* Vertical Scaling uses height/2 */
res = height / 2 ;
/* On 60Hz, it is using a higher Vertical Output Size */
if (!is_50hz)
res += (VRES_60HZ - 480 ) >> 1 ;
/* height */
saa711x_write(sd, R_CE_B_VERT_OUTPUT_WINDOW_LENGTH,
(u8) (res & 0 xff));
saa711x_write(sd, R_CF_B_VERT_OUTPUT_WINDOW_LENGTH_MSB,
(u8) ((res >> 8 ) & 0 xff));
/* Scaling settings */
/* Hprescaler is floor(inres/outres) */
HPSC = (int )(720 / width);
/* 0 is not allowed (div. by zero) */
HPSC = HPSC ? HPSC : 1 ;
HFSC = (int )((1024 * 720 ) / (HPSC * width));
/* FIXME hardcodes to "Task B"
* write H prescaler integer */
saa711x_write(sd, R_D0_B_HORIZ_PRESCALING,
(u8) (HPSC & 0 x3f));
v4l2_dbg(1 , debug, sd, "Hpsc: 0x%05x, Hfsc: 0x%05x\n" , HPSC, HFSC);
/* write H fine-scaling (luminance) */
saa711x_write(sd, R_D8_B_HORIZ_LUMA_SCALING_INC,
(u8) (HFSC & 0 xff));
saa711x_write(sd, R_D9_B_HORIZ_LUMA_SCALING_INC_MSB,
(u8) ((HFSC >> 8 ) & 0 xff));
/* write H fine-scaling (chrominance)
* must be lum/2, so i'll just bitshift :) */
saa711x_write(sd, R_DC_B_HORIZ_CHROMA_SCALING,
(u8) ((HFSC >> 1 ) & 0 xff));
saa711x_write(sd, R_DD_B_HORIZ_CHROMA_SCALING_MSB,
(u8) ((HFSC >> 9 ) & 0 xff));
VSCY = (int )((1024 * Vsrc) / height);
v4l2_dbg(1 , debug, sd, "Vsrc: %d, Vscy: 0x%05x\n" , Vsrc, VSCY);
/* Correct Contrast and Luminance */
saa711x_write(sd, R_D5_B_LUMA_CONTRAST_CNTL,
(u8) (64 * 1024 / VSCY));
saa711x_write(sd, R_D6_B_CHROMA_SATURATION_CNTL,
(u8) (64 * 1024 / VSCY));
/* write V fine-scaling (luminance) */
saa711x_write(sd, R_E0_B_VERT_LUMA_SCALING_INC,
(u8) (VSCY & 0 xff));
saa711x_write(sd, R_E1_B_VERT_LUMA_SCALING_INC_MSB,
(u8) ((VSCY >> 8 ) & 0 xff));
/* write V fine-scaling (chrominance) */
saa711x_write(sd, R_E2_B_VERT_CHROMA_SCALING_INC,
(u8) (VSCY & 0 xff));
saa711x_write(sd, R_E3_B_VERT_CHROMA_SCALING_INC_MSB,
(u8) ((VSCY >> 8 ) & 0 xff));
saa711x_writeregs(sd, saa7115_cfg_reset_scaler);
/* Activates task "B" */
saa711x_write(sd, R_80_GLOBAL_CNTL_1,
saa711x_read(sd, R_80_GLOBAL_CNTL_1) | 0 x20);
return 0 ;
}
static void saa711x_set_v4lstd(struct v4l2_subdev *sd, v4l2_std_id std)
{
struct saa711x_state *state = to_state(sd);
/* Prevent unnecessary standard changes. During a standard
change the I - Port is temporarily disabled . Any devices
reading from that port can get confused .
Note that s_std is also used to switch from
radio to TV mode , so if a s_std is broadcast to
all I2C devices then you do not want to have an unwanted
side-effect here. */
if (std == state->std)
return ;
state->std = std;
// This works for NTSC-M, SECAM-L and the 50Hz PAL variants.
if (std & V4L2_STD_525_60) {
v4l2_dbg(1 , debug, sd, "decoder set standard 60 Hz\n" );
if (state->ident == GM7113C) {
u8 reg = saa711x_read(sd, R_08_SYNC_CNTL);
reg &= ~(SAA7113_R_08_FSEL | SAA7113_R_08_AUFD);
reg |= SAA7113_R_08_FSEL;
saa711x_write(sd, R_08_SYNC_CNTL, reg);
} else {
saa711x_writeregs(sd, saa7115_cfg_60hz_video);
}
saa711x_set_size(sd, 720 , 480 );
} else {
v4l2_dbg(1 , debug, sd, "decoder set standard 50 Hz\n" );
if (state->ident == GM7113C) {
u8 reg = saa711x_read(sd, R_08_SYNC_CNTL);
reg &= ~(SAA7113_R_08_FSEL | SAA7113_R_08_AUFD);
saa711x_write(sd, R_08_SYNC_CNTL, reg);
} else {
saa711x_writeregs(sd, saa7115_cfg_50hz_video);
}
saa711x_set_size(sd, 720 , 576 );
}
/* Register 0E - Bits D6-D4 on NO-AUTO mode
( SAA7111 and SAA7113 doesn ' t have auto mode )
50 Hz / 625 lines 60 Hz / 525 lines
000 PAL BGDHI ( 4 . 43 Mhz ) NTSC M ( 3 . 58 MHz )
001 NTSC 4 . 43 ( 50 Hz ) PAL 4 . 43 ( 60 Hz )
010 Combination - PAL N ( 3 . 58 MHz ) NTSC 4 . 43 ( 60 Hz )
011 NTSC N ( 3 . 58 MHz ) PAL M ( 3 . 58 MHz )
100 reserved NTSC - Japan ( 3 . 58 MHz )
*/
if (state->ident <= SAA7113 ||
state->ident == GM7113C) {
u8 reg = saa711x_read(sd, R_0E_CHROMA_CNTL_1) & 0 x8f;
if (std == V4L2_STD_PAL_M) {
reg |= 0 x30;
} else if (std == V4L2_STD_PAL_Nc) {
reg |= 0 x20;
} else if (std == V4L2_STD_PAL_60) {
reg |= 0 x10;
} else if (std == V4L2_STD_NTSC_M_JP) {
reg |= 0 x40;
} else if (std & V4L2_STD_SECAM) {
reg |= 0 x50;
}
saa711x_write(sd, R_0E_CHROMA_CNTL_1, reg);
} else {
/* restart task B if needed */
int taskb = saa711x_read(sd, R_80_GLOBAL_CNTL_1) & 0 x10;
if (taskb && state->ident == SAA7114)
saa711x_writeregs(sd, saa7115_cfg_vbi_on);
/* switch audio mode too! */
saa711x_s_clock_freq(sd, state->audclk_freq);
}
}
/* setup the sliced VBI lcr registers according to the sliced VBI format */
static void saa711x_set_lcr(struct v4l2_subdev *sd, struct v4l2_sliced_vbi_format *fmt)
{
struct saa711x_state *state = to_state(sd);
int is_50hz = (state->std & V4L2_STD_625_50);
u8 lcr[24 ];
int i, x;
#if 1
/* saa7113/7114/7118 VBI support are experimental */
if (!saa711x_has_reg(state->ident, R_41_LCR_BASE))
return ;
#else
/* SAA7113 and SAA7118 also should support VBI - Need testing */
if (state->ident != SAA7115)
return ;
#endif
for (i = 0 ; i <= 23 ; i++)
lcr[i] = 0 xff;
if (fmt == NULL) {
/* raw VBI */
if (is_50hz)
for (i = 6 ; i <= 23 ; i++)
lcr[i] = 0 xdd;
else
for (i = 10 ; i <= 21 ; i++)
lcr[i] = 0 xdd;
} else {
/* sliced VBI */
/* first clear lines that cannot be captured */
if (is_50hz) {
for (i = 0 ; i <= 5 ; i++)
fmt->service_lines[0 ][i] =
fmt->service_lines[1 ][i] = 0 ;
}
else {
for (i = 0 ; i <= 9 ; i++)
fmt->service_lines[0 ][i] =
fmt->service_lines[1 ][i] = 0 ;
for (i = 22 ; i <= 23 ; i++)
fmt->service_lines[0 ][i] =
fmt->service_lines[1 ][i] = 0 ;
}
/* Now set the lcr values according to the specified service */
for (i = 6 ; i <= 23 ; i++) {
lcr[i] = 0 ;
for (x = 0 ; x <= 1 ; x++) {
switch (fmt->service_lines[1 -x][i]) {
case 0 :
lcr[i] |= 0 xf << (4 * x);
break ;
case V4L2_SLICED_TELETEXT_B:
lcr[i] |= 1 << (4 * x);
break ;
case V4L2_SLICED_CAPTION_525:
lcr[i] |= 4 << (4 * x);
break ;
case V4L2_SLICED_WSS_625:
lcr[i] |= 5 << (4 * x);
break ;
case V4L2_SLICED_VPS:
lcr[i] |= 7 << (4 * x);
break ;
}
}
}
}
/* write the lcr registers */
for (i = 2 ; i <= 23 ; i++) {
saa711x_write(sd, i - 2 + R_41_LCR_BASE, lcr[i]);
}
/* enable/disable raw VBI capturing */
saa711x_writeregs(sd, fmt == NULL ?
saa7115_cfg_vbi_on :
saa7115_cfg_vbi_off);
}
static int saa711x_g_sliced_fmt(struct v4l2_subdev *sd, struct v4l2_sliced_vbi_format *sliced)
{
static const u16 lcr2vbi[] = {
0 , V4L2_SLICED_TELETEXT_B, 0 , /* 1 */
0 , V4L2_SLICED_CAPTION_525, /* 4 */
V4L2_SLICED_WSS_625, 0 , /* 5 */
V4L2_SLICED_VPS, 0 , 0 , 0 , 0 , /* 7 */
0 , 0 , 0 , 0
};
int i;
memset(sliced->service_lines, 0 , sizeof (sliced->service_lines));
sliced->service_set = 0 ;
/* done if using raw VBI */
if (saa711x_read(sd, R_80_GLOBAL_CNTL_1) & 0 x10)
return 0 ;
for (i = 2 ; i <= 23 ; i++) {
u8 v = saa711x_read(sd, i - 2 + R_41_LCR_BASE);
sliced->service_lines[0 ][i] = lcr2vbi[v >> 4 ];
sliced->service_lines[1 ][i] = lcr2vbi[v & 0 xf];
sliced->service_set |=
sliced->service_lines[0 ][i] | sliced->service_lines[1 ][i];
}
return 0 ;
}
static int saa711x_s_raw_fmt(struct v4l2_subdev *sd, struct v4l2_vbi_format *fmt)
{
saa711x_set_lcr(sd, NULL);
return 0 ;
}
static int saa711x_s_sliced_fmt(struct v4l2_subdev *sd, struct v4l2_sliced_vbi_format *fmt)
{
saa711x_set_lcr(sd, fmt);
return 0 ;
}
static int saa711x_set_fmt(struct v4l2_subdev *sd,
struct v4l2_subdev_state *sd_state,
struct v4l2_subdev_format *format)
{
struct v4l2_mbus_framefmt *fmt = &format->format;
if (format->pad || fmt->code != MEDIA_BUS_FMT_FIXED)
return -EINVAL;
fmt->field = V4L2_FIELD_INTERLACED;
fmt->colorspace = V4L2_COLORSPACE_SMPTE170M;
if (format->which == V4L2_SUBDEV_FORMAT_TRY)
return 0 ;
return saa711x_set_size(sd, fmt->width, fmt->height);
}
/* Decode the sliced VBI data stream as created by the saa7115.
The format is described in the saa7115 datasheet in Tables 25 and 26
and in Figure 33 .
The current implementation uses SAV / EAV codes and not the ancillary data
headers . The vbi - > p pointer points to the R_5E_SDID byte right after the SAV
code. */
static int saa711x_decode_vbi_line(struct v4l2_subdev *sd, struct v4l2_decode_vbi_line *vbi)
{
struct saa711x_state *state = to_state(sd);
static const char vbi_no_data_pattern[] = {
0 xa0, 0 xa0, 0 xa0, 0 xa0, 0 xa0, 0 xa0, 0 xa0, 0 xa0, 0 xa0, 0 xa0
};
u8 *p = vbi->p;
u32 wss;
int id1, id2; /* the ID1 and ID2 bytes from the internal header */
vbi->type = 0 ; /* mark result as a failure */
id1 = p[2 ];
id2 = p[3 ];
/* Note: the field bit is inverted for 60 Hz video */
if (state->std & V4L2_STD_525_60)
id1 ^= 0 x40;
/* Skip internal header, p now points to the start of the payload */
p += 4 ;
vbi->p = p;
/* calculate field and line number of the VBI packet (1-23) */
vbi->is_second_field = ((id1 & 0 x40) != 0 );
vbi->line = (id1 & 0 x3f) << 3 ;
vbi->line |= (id2 & 0 x70) >> 4 ;
/* Obtain data type */
id2 &= 0 xf;
/* If the VBI slicer does not detect any signal it will fill up
the payload buffer with 0xa0 bytes. */
if (!memcmp(p, vbi_no_data_pattern, sizeof (vbi_no_data_pattern)))
return 0 ;
/* decode payloads */
switch (id2) {
case 1 :
vbi->type = V4L2_SLICED_TELETEXT_B;
break ;
case 4 :
if (!parity8(p[0 ]) || !parity8(p[1 ]))
return 0 ;
vbi->type = V4L2_SLICED_CAPTION_525;
break ;
case 5 :
wss = saa711x_decode_wss(p);
if (wss == -1 )
return 0 ;
p[0 ] = wss & 0 xff;
p[1 ] = wss >> 8 ;
vbi->type = V4L2_SLICED_WSS_625;
break ;
case 7 :
if (saa711x_decode_vps(p, p) != 0 )
return 0 ;
vbi->type = V4L2_SLICED_VPS;
break ;
default :
break ;
}
return 0 ;
}
/* ============ SAA7115 AUDIO settings (end) ============= */
static int saa711x_g_tuner(struct v4l2_subdev *sd, struct v4l2_tuner *vt)
{
struct saa711x_state *state = to_state(sd);
int status;
if (state->radio)
return 0 ;
status = saa711x_read(sd, R_1F_STATUS_BYTE_2_VD_DEC);
v4l2_dbg(1 , debug, sd, "status: 0x%02x\n" , status);
vt->signal = ((status & (1 << 6 )) == 0 ) ? 0 xffff : 0 x0;
return 0 ;
}
static int saa711x_s_std(struct v4l2_subdev *sd, v4l2_std_id std)
{
struct saa711x_state *state = to_state(sd);
state->radio = 0 ;
saa711x_set_v4lstd(sd, std);
return 0 ;
}
static int saa711x_s_radio(struct v4l2_subdev *sd)
{
struct saa711x_state *state = to_state(sd);
state->radio = 1 ;
return 0 ;
}
static int saa711x_s_routing(struct v4l2_subdev *sd,
u32 input, u32 output, u32 config)
{
struct saa711x_state *state = to_state(sd);
u8 mask = (state->ident <= SAA7111A) ? 0 xf8 : 0 xf0;
v4l2_dbg(1 , debug, sd, "decoder set input %d output %d\n" ,
input, output);
/* saa7111/3 does not have these inputs */
if ((state->ident <= SAA7113 ||
state->ident == GM7113C) &&
(input == SAA7115_COMPOSITE4 ||
input == SAA7115_COMPOSITE5)) {
return -EINVAL;
}
if (input > SAA7115_SVIDEO3)
return -EINVAL;
if (state->input == input && state->output == output)
return 0 ;
v4l2_dbg(1 , debug, sd, "now setting %s input %s output\n" ,
(input >= SAA7115_SVIDEO0) ? "S-Video" : "Composite" ,
(output == SAA7115_IPORT_ON) ? "iport on" : "iport off" );
state->input = input;
/* saa7111 has slightly different input numbering */
if (state->ident <= SAA7111A) {
if (input >= SAA7115_COMPOSITE4)
input -= 2 ;
/* saa7111 specific */
saa711x_write(sd, R_10_CHROMA_CNTL_2,
(saa711x_read(sd, R_10_CHROMA_CNTL_2) & 0 x3f) |
((output & 0 xc0) ^ 0 x40));
saa711x_write(sd, R_13_RT_X_PORT_OUT_CNTL,
(saa711x_read(sd, R_13_RT_X_PORT_OUT_CNTL) & 0 xf0) |
((output & 2 ) ? 0 x0a : 0 ));
}
/* select mode */
saa711x_write(sd, R_02_INPUT_CNTL_1,
(saa711x_read(sd, R_02_INPUT_CNTL_1) & mask) |
input);
/* bypass chrominance trap for S-Video modes */
saa711x_write(sd, R_09_LUMA_CNTL,
(saa711x_read(sd, R_09_LUMA_CNTL) & 0 x7f) |
(state->input >= SAA7115_SVIDEO0 ? 0 x80 : 0 x0));
state->output = output;
if (state->ident == SAA7114 ||
state->ident == SAA7115) {
saa711x_write(sd, R_83_X_PORT_I_O_ENA_AND_OUT_CLK,
(saa711x_read(sd, R_83_X_PORT_I_O_ENA_AND_OUT_CLK) & 0 xfe) |
(state->output & 0 x01));
}
if (state->ident > SAA7111A) {
if (config & SAA7115_IDQ_IS_DEFAULT)
saa711x_write(sd, R_85_I_PORT_SIGNAL_POLAR, 0 x20);
else
saa711x_write(sd, R_85_I_PORT_SIGNAL_POLAR, 0 x21);
}
return 0 ;
}
static int saa711x_s_gpio(struct v4l2_subdev *sd, u32 val)
{
struct saa711x_state *state = to_state(sd);
if (state->ident > SAA7111A)
return -EINVAL;
saa711x_write(sd, 0 x11, (saa711x_read(sd, 0 x11) & 0 x7f) |
(val ? 0 x80 : 0 ));
return 0 ;
}
static int saa711x_s_stream(struct v4l2_subdev *sd, int enable)
{
struct saa711x_state *state = to_state(sd);
v4l2_dbg(1 , debug, sd, "%s output\n" ,
enable ? "enable" : "disable" );
if (state->enable == enable)
return 0 ;
state->enable = enable;
if (!saa711x_has_reg(state->ident, R_87_I_PORT_I_O_ENA_OUT_CLK_AND_GATED))
return 0 ;
saa711x_write(sd, R_87_I_PORT_I_O_ENA_OUT_CLK_AND_GATED, state->enable);
return 0 ;
}
static int saa711x_s_crystal_freq(struct v4l2_subdev *sd, u32 freq, u32 flags)
{
struct saa711x_state *state = to_state(sd);
if (freq != SAA7115_FREQ_32_11_MHZ && freq != SAA7115_FREQ_24_576_MHZ)
return -EINVAL;
state->crystal_freq = freq;
state->double_asclk = flags & SAA7115_FREQ_FL_DOUBLE_ASCLK;
state->cgcdiv = (flags & SAA7115_FREQ_FL_CGCDIV) ? 3 : 4 ;
state->ucgc = flags & SAA7115_FREQ_FL_UCGC;
state->apll = flags & SAA7115_FREQ_FL_APLL;
saa711x_s_clock_freq(sd, state->audclk_freq);
return 0 ;
}
static int saa711x_reset(struct v4l2_subdev *sd, u32 val)
{
v4l2_dbg(1 , debug, sd, "decoder RESET\n" );
saa711x_writeregs(sd, saa7115_cfg_reset_scaler);
return 0 ;
}
static int saa711x_g_vbi_data(struct v4l2_subdev *sd, struct v4l2_sliced_vbi_data *data)
{
/* Note: the internal field ID is inverted for NTSC,
so data - > field 0 maps to the saa7115 even field ,
whereas for PAL it maps to the saa7115 odd field. */
switch (data->id) {
case V4L2_SLICED_WSS_625:
if (saa711x_read(sd, 0 x6b) & 0 xc0)
return -EIO;
data->data[0 ] = saa711x_read(sd, 0 x6c);
data->data[1 ] = saa711x_read(sd, 0 x6d);
return 0 ;
case V4L2_SLICED_CAPTION_525:
if (data->field == 0 ) {
/* CC */
if (saa711x_read(sd, 0 x66) & 0 x30)
return -EIO;
data->data[0 ] = saa711x_read(sd, 0 x69);
data->data[1 ] = saa711x_read(sd, 0 x6a);
return 0 ;
}
/* XDS */
if (saa711x_read(sd, 0 x66) & 0 xc0)
return -EIO;
data->data[0 ] = saa711x_read(sd, 0 x67);
data->data[1 ] = saa711x_read(sd, 0 x68);
return 0 ;
default :
return -EINVAL;
}
}
static int saa711x_querystd(struct v4l2_subdev *sd, v4l2_std_id *std)
{
struct saa711x_state *state = to_state(sd);
int reg1f, reg1e;
/*
* The V4L2 core already initializes std with all supported
* Standards . All driver needs to do is to mask it , to remove
* standards that don ' t apply from the mask
*/
reg1f = saa711x_read(sd, R_1F_STATUS_BYTE_2_VD_DEC);
if (state->ident == SAA7115) {
reg1e = saa711x_read(sd, R_1E_STATUS_BYTE_1_VD_DEC);
v4l2_dbg(1 , debug, sd, "Status byte 1 (0x1e)=0x%02x\n" , reg1e);
switch (reg1e & 0 x03) {
case 1 :
*std &= V4L2_STD_NTSC;
break ;
case 2 :
/*
* V4L2_STD_PAL just cover the european PAL standards .
* This is wrong , as the device could also be using an
* other PAL standard .
*/
*std &= V4L2_STD_PAL | V4L2_STD_PAL_N | V4L2_STD_PAL_Nc |
V4L2_STD_PAL_M | V4L2_STD_PAL_60;
break ;
case 3 :
*std &= V4L2_STD_SECAM;
break ;
default :
*std = V4L2_STD_UNKNOWN;
/* Can't detect anything */
break ;
}
}
v4l2_dbg(1 , debug, sd, "Status byte 2 (0x1f)=0x%02x\n" , reg1f);
/* horizontal/vertical not locked */
if (reg1f & 0 x40) {
*std = V4L2_STD_UNKNOWN;
goto ret;
}
if (reg1f & 0 x20)
*std &= V4L2_STD_525_60;
else
*std &= V4L2_STD_625_50;
ret:
v4l2_dbg(1 , debug, sd, "detected std mask = %08Lx\n" , *std);
return 0 ;
}
static int saa711x_g_input_status(struct v4l2_subdev *sd, u32 *status)
{
struct saa711x_state *state = to_state(sd);
int reg1e = 0 x80;
int reg1f;
*status = V4L2_IN_ST_NO_SIGNAL;
if (state->ident == SAA7115)
reg1e = saa711x_read(sd, R_1E_STATUS_BYTE_1_VD_DEC);
reg1f = saa711x_read(sd, R_1F_STATUS_BYTE_2_VD_DEC);
if ((reg1f & 0 xc1) == 0 x81 && (reg1e & 0 xc0) == 0 x80)
*status = 0 ;
return 0 ;
}
#ifdef CONFIG_VIDEO_ADV_DEBUG
static int saa711x_g_register(struct v4l2_subdev *sd, struct v4l2_dbg_register *reg)
{
reg->val = saa711x_read(sd, reg->reg & 0 xff);
reg->size = 1 ;
return 0 ;
}
static int saa711x_s_register(struct v4l2_subdev *sd, const struct v4l2_dbg_register *reg)
{
saa711x_write(sd, reg->reg & 0 xff, reg->val & 0 xff);
return 0 ;
}
#endif
static int saa711x_log_status(struct v4l2_subdev *sd)
{
struct saa711x_state *state = to_state(sd);
int reg1e, reg1f;
int signalOk;
int vcr;
v4l2_info(sd, "Audio frequency: %d Hz\n" , state->audclk_freq);
if (state->ident != SAA7115) {
/* status for the saa7114 */
reg1f = saa711x_read(sd, R_1F_STATUS_BYTE_2_VD_DEC);
signalOk = (reg1f & 0 xc1) == 0 x81;
v4l2_info(sd, "Video signal: %s\n" , signalOk ? "ok" : "bad" );
v4l2_info(sd, "Frequency: %s\n" , (reg1f & 0 x20) ? "60 Hz" : "50 Hz" );
return 0 ;
}
/* status for the saa7115 */
reg1e = saa711x_read(sd, R_1E_STATUS_BYTE_1_VD_DEC);
reg1f = saa711x_read(sd, R_1F_STATUS_BYTE_2_VD_DEC);
signalOk = (reg1f & 0 xc1) == 0 x81 && (reg1e & 0 xc0) == 0 x80;
vcr = !(reg1f & 0 x10);
if (state->input >= 6 )
v4l2_info(sd, "Input: S-Video %d\n" , state->input - 6 );
else
v4l2_info(sd, "Input: Composite %d\n" , state->input);
v4l2_info(sd, "Video signal: %s\n" , signalOk ? (vcr ? "VCR" : "broadcast/DVD" ) : "bad" );
v4l2_info(sd, "Frequency: %s\n" , (reg1f & 0 x20) ? "60 Hz" : "50 Hz" );
switch (reg1e & 0 x03) {
case 1 :
v4l2_info(sd, "Detected format: NTSC\n" );
break ;
case 2 :
v4l2_info(sd, "Detected format: PAL\n" );
break ;
case 3 :
v4l2_info(sd, "Detected format: SECAM\n" );
break ;
default :
v4l2_info(sd, "Detected format: BW/No color\n" );
break ;
}
v4l2_info(sd, "Width, Height: %d, %d\n" , state->width, state->height);
v4l2_ctrl_handler_log_status(&state->hdl, sd->name);
return 0 ;
}
/* ----------------------------------------------------------------------- */
static const struct v4l2_ctrl_ops saa711x_ctrl_ops = {
.s_ctrl = saa711x_s_ctrl,
.g_volatile_ctrl = saa711x_g_volatile_ctrl,
};
static const struct v4l2_subdev_core_ops saa711x_core_ops = {
.log_status = saa711x_log_status,
.reset = saa711x_reset,
.s_gpio = saa711x_s_gpio,
#ifdef CONFIG_VIDEO_ADV_DEBUG
.g_register = saa711x_g_register,
.s_register = saa711x_s_register,
#endif
};
static const struct v4l2_subdev_tuner_ops saa711x_tuner_ops = {
.s_radio = saa711x_s_radio,
.g_tuner = saa711x_g_tuner,
};
static const struct v4l2_subdev_audio_ops saa711x_audio_ops = {
.s_clock_freq = saa711x_s_clock_freq,
};
static const struct v4l2_subdev_video_ops saa711x_video_ops = {
.s_std = saa711x_s_std,
.s_routing = saa711x_s_routing,
.s_crystal_freq = saa711x_s_crystal_freq,
.s_stream = saa711x_s_stream,
.querystd = saa711x_querystd,
.g_input_status = saa711x_g_input_status,
};
static const struct v4l2_subdev_vbi_ops saa711x_vbi_ops = {
.g_vbi_data = saa711x_g_vbi_data,
.decode_vbi_line = saa711x_decode_vbi_line,
.g_sliced_fmt = saa711x_g_sliced_fmt,
.s_sliced_fmt = saa711x_s_sliced_fmt,
.s_raw_fmt = saa711x_s_raw_fmt,
};
static const struct v4l2_subdev_pad_ops saa711x_pad_ops = {
.set_fmt = saa711x_set_fmt,
};
static const struct v4l2_subdev_ops saa711x_ops = {
.core = &saa711x_core_ops,
.tuner = &saa711x_tuner_ops,
.audio = &saa711x_audio_ops,
.video = &saa711x_video_ops,
.vbi = &saa711x_vbi_ops,
.pad = &saa711x_pad_ops,
};
#define CHIP_VER_SIZE 16
/* ----------------------------------------------------------------------- */
static void saa711x_write_platform_data(struct saa711x_state *state,
struct saa7115_platform_data *data)
{
struct v4l2_subdev *sd = &state->sd;
u8 work;
if (state->ident != GM7113C &&
state->ident != SAA7113)
return ;
if (data->saa7113_r08_htc) {
work = saa711x_read(sd, R_08_SYNC_CNTL);
work &= ~SAA7113_R_08_HTC_MASK;
work |= ((*data->saa7113_r08_htc) << SAA7113_R_08_HTC_OFFSET);
saa711x_write(sd, R_08_SYNC_CNTL, work);
}
if (data->saa7113_r10_vrln) {
work = saa711x_read(sd, R_10_CHROMA_CNTL_2);
work &= ~SAA7113_R_10_VRLN_MASK;
if (*data->saa7113_r10_vrln)
work |= (1 << SAA7113_R_10_VRLN_OFFSET);
saa711x_write(sd, R_10_CHROMA_CNTL_2, work);
}
if (data->saa7113_r10_ofts) {
work = saa711x_read(sd, R_10_CHROMA_CNTL_2);
work &= ~SAA7113_R_10_OFTS_MASK;
work |= (*data->saa7113_r10_ofts << SAA7113_R_10_OFTS_OFFSET);
saa711x_write(sd, R_10_CHROMA_CNTL_2, work);
}
if (data->saa7113_r12_rts0) {
work = saa711x_read(sd, R_12_RT_SIGNAL_CNTL);
work &= ~SAA7113_R_12_RTS0_MASK;
work |= (*data->saa7113_r12_rts0 << SAA7113_R_12_RTS0_OFFSET);
/* According to the datasheet,
* SAA7113_RTS_DOT_IN should only be used on RTS1 */
WARN_ON(*data->saa7113_r12_rts0 == SAA7113_RTS_DOT_IN);
saa711x_write(sd, R_12_RT_SIGNAL_CNTL, work);
}
if (data->saa7113_r12_rts1) {
work = saa711x_read(sd, R_12_RT_SIGNAL_CNTL);
work &= ~SAA7113_R_12_RTS1_MASK;
work |= (*data->saa7113_r12_rts1 << SAA7113_R_12_RTS1_OFFSET);
saa711x_write(sd, R_12_RT_SIGNAL_CNTL, work);
}
if (data->saa7113_r13_adlsb) {
work = saa711x_read(sd, R_13_RT_X_PORT_OUT_CNTL);
work &= ~SAA7113_R_13_ADLSB_MASK;
if (*data->saa7113_r13_adlsb)
work |= (1 << SAA7113_R_13_ADLSB_OFFSET);
saa711x_write(sd, R_13_RT_X_PORT_OUT_CNTL, work);
}
}
/**
* saa711x_detect_chip - Detects the saa711x ( or clone ) variant
* @ client : I2C client structure .
* @ id : I2C device ID structure .
* @ name : Name of the device to be filled .
*
* Detects the Philips / NXP saa711x chip , or some clone of it .
* if ' id ' is NULL or id - > driver_data is equal to 1 , it auto - probes
* the analog demod .
* If the tuner is not found , it returns - ENODEV .
* If auto - detection is disabled and the tuner doesn ' t match what it was
* required , it returns - EINVAL and fills ' name ' .
* If the chip is found , it returns the chip ID and fills ' name ' .
*/
static int saa711x_detect_chip(struct i2c_client *client,
const struct i2c_device_id *id,
char *name)
{
char chip_ver[CHIP_VER_SIZE];
char chip_id;
int i;
int autodetect;
autodetect = !id || id->driver_data == 1 ;
/* Read the chip version register */
for (i = 0 ; i < CHIP_VER_SIZE; i++) {
i2c_smbus_write_byte_data(client, 0 , i);
chip_ver[i] = i2c_smbus_read_byte_data(client, 0 );
name[i] = (chip_ver[i] & 0 x0f) + '0' ;
if (name[i] > '9' )
name[i] += 'a' - '9' - 1 ;
}
name[i] = '\0' ;
/* Check if it is a Philips/NXP chip */
if (!memcmp(name + 1 , "f711" , 4 )) {
chip_id = name[5 ];
snprintf(name, CHIP_VER_SIZE, "saa711%c" , chip_id);
if (!autodetect && strcmp(name, id->name))
return -EINVAL;
switch (chip_id) {
case '1' :
if (chip_ver[0 ] & 0 xf0) {
snprintf(name, CHIP_VER_SIZE, "saa711%ca" , chip_id);
v4l_info(client, "saa7111a variant found\n" );
return SAA7111A;
}
return SAA7111;
case '3' :
return SAA7113;
case '4' :
return SAA7114;
case '5' :
return SAA7115;
case '8' :
return SAA7118;
default :
v4l2_info(client,
"WARNING: Philips/NXP chip unknown - Falling back to saa7111\n" );
return SAA7111;
}
}
/* Check if it is a gm7113c */
if (!memcmp(name, "0000" , 4 )) {
chip_id = 0 ;
for (i = 0 ; i < 4 ; i++) {
chip_id = chip_id << 1 ;
chip_id |= (chip_ver[i] & 0 x80) ? 1 : 0 ;
}
/*
* Note : From the datasheet , only versions 1 and 2
* exists . However , tests on a device labeled as :
* " GM7113C 1145 " returned " 10 " on all 16 chip
* version ( reg 0 x00 ) reads . So , we need to also
* accept at least version 0 . For now , let ' s just
* assume that a device that returns " 0000 " for
* the lower nibble is a gm7113c .
*/
strscpy(name, "gm7113c" , CHIP_VER_SIZE);
if (!autodetect && strcmp(name, id->name))
return -EINVAL;
v4l_dbg(1 , debug, client,
"It seems to be a %s chip (%*ph) @ 0x%x.\n" ,
name, 16 , chip_ver, client->addr << 1 );
return GM7113C;
}
/* Check if it is a CJC7113 */
if (!memcmp(name, "1111111111111111" , CHIP_VER_SIZE)) {
strscpy(name, "cjc7113" , CHIP_VER_SIZE);
if (!autodetect && strcmp(name, id->name))
return -EINVAL;
v4l_dbg(1 , debug, client,
"It seems to be a %s chip (%*ph) @ 0x%x.\n" ,
name, 16 , chip_ver, client->addr << 1 );
/* CJC7113 seems to be SAA7113-compatible */
return SAA7113;
}
/* Chip was not discovered. Return its ID and don't bind */
v4l_dbg(1 , debug, client, "chip %*ph @ 0x%x is unknown.\n" ,
16 , chip_ver, client->addr << 1 );
return -ENODEV;
}
static int saa711x_probe(struct i2c_client *client)
{
const struct i2c_device_id *id = i2c_client_get_device_id(client);
struct saa711x_state *state;
struct v4l2_subdev *sd;
struct v4l2_ctrl_handler *hdl;
struct saa7115_platform_data *pdata;
int ident;
char name[CHIP_VER_SIZE + 1 ];
#if defined (CONFIG_MEDIA_CONTROLLER)
int ret;
#endif
/* Check if the adapter supports the needed features */
if (!i2c_check_functionality(client->adapter, I2C_FUNC_SMBUS_BYTE_DATA))
return -EIO;
ident = saa711x_detect_chip(client, id, name);
if (ident == -EINVAL) {
/* Chip exists, but doesn't match */
v4l_warn(client, "found %s while %s was expected\n" ,
name, id->name);
return -ENODEV;
}
if (ident < 0 )
return ident;
strscpy(client->name, name, sizeof (client->name));
state = devm_kzalloc(&client->dev, sizeof (*state), GFP_KERNEL);
if (state == NULL)
return -ENOMEM;
sd = &state->sd;
v4l2_i2c_subdev_init(sd, client, &saa711x_ops);
#if defined (CONFIG_MEDIA_CONTROLLER)
state->pads[SAA711X_PAD_IF_INPUT].flags = MEDIA_PAD_FL_SINK;
state->pads[SAA711X_PAD_IF_INPUT].sig_type = PAD_SIGNAL_ANALOG;
state->pads[SAA711X_PAD_VID_OUT].flags = MEDIA_PAD_FL_SOURCE;
state->pads[SAA711X_PAD_VID_OUT].sig_type = PAD_SIGNAL_DV;
sd->entity.function = MEDIA_ENT_F_ATV_DECODER;
ret = media_entity_pads_init(&sd->entity, SAA711X_NUM_PADS,
state->pads);
if (ret < 0 )
return ret;
#endif
v4l_info(client, "%s found @ 0x%x (%s)\n" , name,
client->addr << 1 , client->adapter->name);
hdl = &state->hdl;
v4l2_ctrl_handler_init(hdl, 6 );
/* add in ascending ID order */
v4l2_ctrl_new_std(hdl, &saa711x_ctrl_ops,
V4L2_CID_BRIGHTNESS, 0 , 255 , 1 , 128 );
v4l2_ctrl_new_std(hdl, &saa711x_ctrl_ops,
V4L2_CID_CONTRAST, 0 , 127 , 1 , 64 );
v4l2_ctrl_new_std(hdl, &saa711x_ctrl_ops,
V4L2_CID_SATURATION, 0 , 127 , 1 , 64 );
v4l2_ctrl_new_std(hdl, &saa711x_ctrl_ops,
V4L2_CID_HUE, -128 , 127 , 1 , 0 );
state->agc = v4l2_ctrl_new_std(hdl, &saa711x_ctrl_ops,
V4L2_CID_CHROMA_AGC, 0 , 1 , 1 , 1 );
state->gain = v4l2_ctrl_new_std(hdl, &saa711x_ctrl_ops,
V4L2_CID_CHROMA_GAIN, 0 , 127 , 1 , 40 );
sd->ctrl_handler = hdl;
if (hdl->error) {
int err = hdl->error;
v4l2_ctrl_handler_free(hdl);
return err;
}
v4l2_ctrl_auto_cluster(2 , &state->agc, 0 , true );
state->input = -1 ;
state->output = SAA7115_IPORT_ON;
state->enable = 1 ;
state->radio = 0 ;
state->ident = ident;
state->audclk_freq = 48000 ;
v4l2_dbg(1 , debug, sd, "writing init values\n" );
/* init to 60hz/48khz */
state->crystal_freq = SAA7115_FREQ_24_576_MHZ;
pdata = client->dev.platform_data;
switch (state->ident) {
case SAA7111:
case SAA7111A:
saa711x_writeregs(sd, saa7111_init);
break ;
case GM7113C:
saa711x_writeregs(sd, gm7113c_init);
break ;
case SAA7113:
if (pdata && pdata->saa7113_force_gm7113c_init)
saa711x_writeregs(sd, gm7113c_init);
else
saa711x_writeregs(sd, saa7113_init);
break ;
default :
state->crystal_freq = SAA7115_FREQ_32_11_MHZ;
saa711x_writeregs(sd, saa7115_init_auto_input);
}
if (state->ident > SAA7111A && state->ident != GM7113C)
saa711x_writeregs(sd, saa7115_init_misc);
if (pdata)
saa711x_write_platform_data(state, pdata);
saa711x_set_v4lstd(sd, V4L2_STD_NTSC);
v4l2_ctrl_handler_setup(hdl);
v4l2_dbg(1 , debug, sd, "status: (1E) 0x%02x, (1F) 0x%02x\n" ,
saa711x_read(sd, R_1E_STATUS_BYTE_1_VD_DEC),
saa711x_read(sd, R_1F_STATUS_BYTE_2_VD_DEC));
return 0 ;
}
/* ----------------------------------------------------------------------- */
static void saa711x_remove(struct i2c_client *client)
{
struct v4l2_subdev *sd = i2c_get_clientdata(client);
v4l2_device_unregister_subdev(sd);
v4l2_ctrl_handler_free(sd->ctrl_handler);
}
static const struct i2c_device_id saa711x_id[] = {
{ "saa7115_auto" , 1 }, /* autodetect */
{ "saa7111" , 0 },
{ "saa7113" , 0 },
{ "saa7114" , 0 },
{ "saa7115" , 0 },
{ "saa7118" , 0 },
{ "gm7113c" , 0 },
{ }
};
MODULE_DEVICE_TABLE(i2c, saa711x_id);
static struct i2c_driver saa711x_driver = {
.driver = {
.name = "saa7115" ,
},
.probe = saa711x_probe,
.remove = saa711x_remove,
.id_table = saa711x_id,
};
module_i2c_driver(saa711x_driver);
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(vorverarbeitet am 2026-09-28)
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