diff options
Diffstat (limited to 'drivers/media/i2c/saa7115.c')
| -rw-r--r-- | drivers/media/i2c/saa7115.c | 1952 |
1 files changed, 1952 insertions, 0 deletions
diff --git a/drivers/media/i2c/saa7115.c b/drivers/media/i2c/saa7115.c new file mode 100644 index 000000000..b07114b5e --- /dev/null +++ b/drivers/media/i2c/saa7115.c @@ -0,0 +1,1952 @@ +// 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/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, +}; + +struct saa711x_state { + struct v4l2_subdev sd; +#ifdef CONFIG_MEDIA_CONTROLLER + struct media_pad pads[DEMOD_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 < 0x20 && reg != 0x01 && reg != 0x0f && + (reg < 0x13 || reg > 0x19) && reg != 0x1d && reg != 0x1e; + if (id == SAA7111A) + return reg < 0x20 && reg != 0x01 && reg != 0x0f && + reg != 0x14 && reg != 0x18 && reg != 0x19 && + reg != 0x1d && reg != 0x1e; + + /* common for saa7113/4/5/8 */ + if (unlikely((reg >= 0x3b && reg <= 0x3f) || reg == 0x5c || reg == 0x5f || + reg == 0xa3 || reg == 0xa7 || reg == 0xab || reg == 0xaf || (reg >= 0xb5 && reg <= 0xb7) || + reg == 0xd3 || reg == 0xd7 || reg == 0xdb || reg == 0xdf || (reg >= 0xe5 && reg <= 0xe7) || + reg == 0x82 || (reg >= 0x89 && reg <= 0x8e))) + return 0; + + switch (id) { + case GM7113C: + return reg != 0x14 && (reg < 0x18 || reg > 0x1e) && reg < 0x20; + case SAA7113: + return reg != 0x14 && (reg < 0x18 || reg > 0x1e) && (reg < 0x20 || reg > 0x3f) && + reg != 0x5d && reg < 0x63; + case SAA7114: + return (reg < 0x1a || reg > 0x1e) && (reg < 0x20 || reg > 0x2f) && + (reg < 0x63 || reg > 0x7f) && reg != 0x33 && reg != 0x37 && + reg != 0x81 && reg < 0xf0; + case SAA7115: + return (reg < 0x20 || reg > 0x2f) && reg != 0x65 && (reg < 0xfc || reg > 0xfe); + case SAA7118: + return (reg < 0x1a || reg > 0x1d) && (reg < 0x20 || reg > 0x22) && + (reg < 0x26 || reg > 0x28) && reg != 0x33 && reg != 0x37 && + (reg < 0x63 || reg > 0x7f) && reg != 0x81 && reg < 0xf0; + } + 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 != 0x00) { + 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, 0x00, /* reserved */ + + /*front end */ + R_02_INPUT_CNTL_1, 0xd0, /* FUSE=3, GUDL=2, MODE=0 */ + R_03_INPUT_CNTL_2, 0x23, /* HLNRS=0, VBSL=1, WPOFF=0, HOLDG=0, + * GAFIX=0, GAI1=256, GAI2=256 */ + R_04_INPUT_CNTL_3, 0x00, /* GAI1=256 */ + R_05_INPUT_CNTL_4, 0x00, /* GAI2=256 */ + + /* decoder */ + R_06_H_SYNC_START, 0xf3, /* HSB at 13(50Hz) / 17(60Hz) + * pixels after end of last line */ + R_07_H_SYNC_STOP, 0xe8, /* HSS seems to be needed to + * work with NTSC, too */ + R_08_SYNC_CNTL, 0xc8, /* AUFD=1, FSEL=1, EXFIL=0, + * VTRC=1, HPLL=0, VNOI=0 */ + R_09_LUMA_CNTL, 0x01, /* BYPS=0, PREF=0, BPSS=0, + * VBLB=0, UPTCV=0, APER=1 */ + R_0A_LUMA_BRIGHT_CNTL, 0x80, + R_0B_LUMA_CONTRAST_CNTL, 0x47, /* 0b - CONT=1.109 */ + R_0C_CHROMA_SAT_CNTL, 0x40, + R_0D_CHROMA_HUE_CNTL, 0x00, + R_0E_CHROMA_CNTL_1, 0x01, /* 0e - CDTO=0, CSTD=0, DCCF=0, + * FCTC=0, CHBW=1 */ + R_0F_CHROMA_GAIN_CNTL, 0x00, /* reserved */ + R_10_CHROMA_CNTL_2, 0x48, /* 10 - OFTS=1, HDEL=0, VRLN=1, YDEL=0 */ + R_11_MODE_DELAY_CNTL, 0x1c, /* 11 - GPSW=0, CM99=0, FECO=0, COMPO=1, + * OEYC=1, OEHV=1, VIPB=0, COLO=0 */ + R_12_RT_SIGNAL_CNTL, 0x00, /* 12 - output control 2 */ + R_13_RT_X_PORT_OUT_CNTL, 0x00, /* 13 - output control 3 */ + R_14_ANAL_ADC_COMPAT_CNTL, 0x00, + R_15_VGATE_START_FID_CHG, 0x00, + R_16_VGATE_STOP, 0x00, + R_17_MISC_VGATE_CONF_AND_MSB, 0x00, + + 0x00, 0x00 +}; + +/* + * 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, 0x08, + R_02_INPUT_CNTL_1, 0xc2, + R_03_INPUT_CNTL_2, 0x30, + R_04_INPUT_CNTL_3, 0x00, + R_05_INPUT_CNTL_4, 0x00, + R_06_H_SYNC_START, 0x89, /* Illegal value -119, + * min. value = -108 (0x94) */ + R_07_H_SYNC_STOP, 0x0d, + R_08_SYNC_CNTL, 0x88, /* Not datasheet default. + * HTC = VTR mode, should be 0x98 */ + R_09_LUMA_CNTL, 0x01, + R_0A_LUMA_BRIGHT_CNTL, 0x80, + R_0B_LUMA_CONTRAST_CNTL, 0x47, + R_0C_CHROMA_SAT_CNTL, 0x40, + R_0D_CHROMA_HUE_CNTL, 0x00, + R_0E_CHROMA_CNTL_1, 0x01, + R_0F_CHROMA_GAIN_CNTL, 0x2a, + R_10_CHROMA_CNTL_2, 0x08, /* Not datsheet default. + * VRLN enabled, should be 0x00 */ + R_11_MODE_DELAY_CNTL, 0x0c, + R_12_RT_SIGNAL_CNTL, 0x07, /* Not datasheet default, + * should be 0x01 */ + R_13_RT_X_PORT_OUT_CNTL, 0x00, + R_14_ANAL_ADC_COMPAT_CNTL, 0x00, + R_15_VGATE_START_FID_CHG, 0x00, + R_16_VGATE_STOP, 0x00, + R_17_MISC_VGATE_CONF_AND_MSB, 0x00, + + 0x00, 0x00 +}; + +/* + * 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, 0x08, + R_02_INPUT_CNTL_1, 0xc0, + R_03_INPUT_CNTL_2, 0x33, + R_04_INPUT_CNTL_3, 0x00, + R_05_INPUT_CNTL_4, 0x00, + R_06_H_SYNC_START, 0xe9, + R_07_H_SYNC_STOP, 0x0d, + R_08_SYNC_CNTL, 0x98, + R_09_LUMA_CNTL, 0x01, + R_0A_LUMA_BRIGHT_CNTL, 0x80, + R_0B_LUMA_CONTRAST_CNTL, 0x47, + R_0C_CHROMA_SAT_CNTL, 0x40, + R_0D_CHROMA_HUE_CNTL, 0x00, + R_0E_CHROMA_CNTL_1, 0x01, + R_0F_CHROMA_GAIN_CNTL, 0x2a, + R_10_CHROMA_CNTL_2, 0x00, + R_11_MODE_DELAY_CNTL, 0x0c, + R_12_RT_SIGNAL_CNTL, 0x01, + R_13_RT_X_PORT_OUT_CNTL, 0x00, + R_14_ANAL_ADC_COMPAT_CNTL, 0x00, + R_15_VGATE_START_FID_CHG, 0x00, + R_16_VGATE_STOP, 0x00, + R_17_MISC_VGATE_CONF_AND_MSB, 0x00, + + 0x00, 0x00 +}; + +/* If a value differs from the Hauppauge driver values, then the comment starts with + 'was 0xXX' 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, 0x48, /* white peak control disabled */ + R_03_INPUT_CNTL_2, 0x20, /* was 0x30. 0x20: long vertical blanking */ + R_04_INPUT_CNTL_3, 0x90, /* analog gain set to 0 */ + R_05_INPUT_CNTL_4, 0x90, /* analog gain set to 0 */ + /* Decoder Part */ + R_06_H_SYNC_START, 0xeb, /* horiz sync begin = -21 */ + R_07_H_SYNC_STOP, 0xe0, /* horiz sync stop = -17 */ + R_09_LUMA_CNTL, 0x53, /* 0x53, was 0x56 for 60hz. luminance control */ + R_0A_LUMA_BRIGHT_CNTL, 0x80, /* was 0x88. decoder brightness, 0x80 is itu standard */ + R_0B_LUMA_CONTRAST_CNTL, 0x44, /* was 0x48. decoder contrast, 0x44 is itu standard */ + R_0C_CHROMA_SAT_CNTL, 0x40, /* was 0x47. decoder saturation, 0x40 is itu standard */ + R_0D_CHROMA_HUE_CNTL, 0x00, + R_0F_CHROMA_GAIN_CNTL, 0x00, /* use automatic gain */ + R_10_CHROMA_CNTL_2, 0x06, /* chroma: active adaptive combfilter */ + R_11_MODE_DELAY_CNTL, 0x00, + R_12_RT_SIGNAL_CNTL, 0x9d, /* RTS0 output control: VGATE */ + R_13_RT_X_PORT_OUT_CNTL, 0x80, /* ITU656 standard mode, RTCO output enable RTCE */ + R_14_ANAL_ADC_COMPAT_CNTL, 0x00, + R_18_RAW_DATA_GAIN_CNTL, 0x40, /* gain 0x00 = nominal */ + R_19_RAW_DATA_OFF_CNTL, 0x80, + R_1A_COLOR_KILL_LVL_CNTL, 0x77, /* recommended value */ + R_1B_MISC_TVVCRDET, 0x42, /* recommended value */ + R_1C_ENHAN_COMB_CTRL1, 0xa9, /* recommended value */ + R_1D_ENHAN_COMB_CTRL2, 0x01, /* recommended value */ + + + R_80_GLOBAL_CNTL_1, 0x0, /* No tasks enabled at init */ + + /* Power Device Control */ + R_88_POWER_SAVE_ADC_PORT_CNTL, 0xd0, /* reset device */ + R_88_POWER_SAVE_ADC_PORT_CNTL, 0xf0, /* set device programmed, all in operational mode */ + 0x00, 0x00 +}; + +/* 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, 0x00, /* disable I-port output */ + R_88_POWER_SAVE_ADC_PORT_CNTL, 0xd0, /* reset scaler */ + R_88_POWER_SAVE_ADC_PORT_CNTL, 0xf0, /* activate scaler */ + R_87_I_PORT_I_O_ENA_OUT_CLK_AND_GATED, 0x01, /* enable I-port output */ + 0x00, 0x00 +}; + +/* ============== SAA7715 VIDEO templates ============= */ + +static const unsigned char saa7115_cfg_60hz_video[] = { + R_80_GLOBAL_CNTL_1, 0x00, /* reset tasks */ + R_88_POWER_SAVE_ADC_PORT_CNTL, 0xd0, /* reset scaler */ + + R_15_VGATE_START_FID_CHG, 0x03, + R_16_VGATE_STOP, 0x11, + R_17_MISC_VGATE_CONF_AND_MSB, 0x9c, + + R_08_SYNC_CNTL, 0x68, /* 0xBO: auto detection, 0x68 = NTSC */ + R_0E_CHROMA_CNTL_1, 0x07, /* video autodetection is on */ + + R_5A_V_OFF_FOR_SLICER, 0x06, /* standard 60hz value for ITU656 line counting */ + + /* Task A */ + R_90_A_TASK_HANDLING_CNTL, 0x80, + R_91_A_X_PORT_FORMATS_AND_CONF, 0x48, + R_92_A_X_PORT_INPUT_REFERENCE_SIGNAL, 0x40, + R_93_A_I_PORT_OUTPUT_FORMATS_AND_CONF, 0x84, + + /* hoffset low (input), 0x0002 is minimum */ + R_94_A_HORIZ_INPUT_WINDOW_START, 0x01, + R_95_A_HORIZ_INPUT_WINDOW_START_MSB, 0x00, + + /* hsize low (input), 0x02d0 = 720 */ + R_96_A_HORIZ_INPUT_WINDOW_LENGTH, 0xd0, + R_97_A_HORIZ_INPUT_WINDOW_LENGTH_MSB, 0x02, + + R_98_A_VERT_INPUT_WINDOW_START, 0x05, + R_99_A_VERT_INPUT_WINDOW_START_MSB, 0x00, + + R_9A_A_VERT_INPUT_WINDOW_LENGTH, 0x0c, + R_9B_A_VERT_INPUT_WINDOW_LENGTH_MSB, 0x00, + + R_9C_A_HORIZ_OUTPUT_WINDOW_LENGTH, 0xa0, + R_9D_A_HORIZ_OUTPUT_WINDOW_LENGTH_MSB, 0x05, + + R_9E_A_VERT_OUTPUT_WINDOW_LENGTH, 0x0c, + R_9F_A_VERT_OUTPUT_WINDOW_LENGTH_MSB, 0x00, + + /* Task B */ + R_C0_B_TASK_HANDLING_CNTL, 0x00, + R_C1_B_X_PORT_FORMATS_AND_CONF, 0x08, + R_C2_B_INPUT_REFERENCE_SIGNAL_DEFINITION, 0x00, + R_C3_B_I_PORT_FORMATS_AND_CONF, 0x80, + + /* 0x0002 is minimum */ + R_C4_B_HORIZ_INPUT_WINDOW_START, 0x02, + R_C5_B_HORIZ_INPUT_WINDOW_START_MSB, 0x00, + + /* 0x02d0 = 720 */ + R_C6_B_HORIZ_INPUT_WINDOW_LENGTH, 0xd0, + R_C7_B_HORIZ_INPUT_WINDOW_LENGTH_MSB, 0x02, + + /* vwindow start 0x12 = 18 */ + R_C8_B_VERT_INPUT_WINDOW_START, 0x12, + R_C9_B_VERT_INPUT_WINDOW_START_MSB, 0x00, + + /* 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, 0xd0, + R_CD_B_HORIZ_OUTPUT_WINDOW_LENGTH_MSB, 0x02, + + R_F0_LFCO_PER_LINE, 0xad, /* Set PLL Register. 60hz 525 lines per frame, 27 MHz */ + R_F1_P_I_PARAM_SELECT, 0x05, /* low bit with 0xF0 */ + R_F5_PULSGEN_LINE_LENGTH, 0xad, + R_F6_PULSE_A_POS_LSB_AND_PULSEGEN_CONFIG, 0x01, + + 0x00, 0x00 +}; + +static const unsigned char saa7115_cfg_50hz_video[] = { + R_80_GLOBAL_CNTL_1, 0x00, + R_88_POWER_SAVE_ADC_PORT_CNTL, 0xd0, /* reset scaler */ + + R_15_VGATE_START_FID_CHG, 0x37, /* VGATE start */ + R_16_VGATE_STOP, 0x16, + R_17_MISC_VGATE_CONF_AND_MSB, 0x99, + + R_08_SYNC_CNTL, 0x28, /* 0x28 = PAL */ + R_0E_CHROMA_CNTL_1, 0x07, + + R_5A_V_OFF_FOR_SLICER, 0x03, /* standard 50hz value */ + + /* Task A */ + R_90_A_TASK_HANDLING_CNTL, 0x81, + R_91_A_X_PORT_FORMATS_AND_CONF, 0x48, + R_92_A_X_PORT_INPUT_REFERENCE_SIGNAL, 0x40, + R_93_A_I_PORT_OUTPUT_FORMATS_AND_CONF, 0x84, + + /* 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, 0x00, + R_95_A_HORIZ_INPUT_WINDOW_START_MSB, 0x00, + + /* hsize low (input), 0x02d0 = 720 */ + R_96_A_HORIZ_INPUT_WINDOW_LENGTH, 0xd0, + R_97_A_HORIZ_INPUT_WINDOW_LENGTH_MSB, 0x02, + + R_98_A_VERT_INPUT_WINDOW_START, 0x03, + R_99_A_VERT_INPUT_WINDOW_START_MSB, 0x00, + + /* vsize 0x12 = 18 */ + R_9A_A_VERT_INPUT_WINDOW_LENGTH, 0x12, + R_9B_A_VERT_INPUT_WINDOW_LENGTH_MSB, 0x00, + + /* hsize 0x05a0 = 1440 */ + R_9C_A_HORIZ_OUTPUT_WINDOW_LENGTH, 0xa0, + R_9D_A_HORIZ_OUTPUT_WINDOW_LENGTH_MSB, 0x05, /* hsize hi (output) */ + R_9E_A_VERT_OUTPUT_WINDOW_LENGTH, 0x12, /* vsize low (output), 0x12 = 18 */ + R_9F_A_VERT_OUTPUT_WINDOW_LENGTH_MSB, 0x00, /* vsize hi (output) */ + + /* Task B */ + R_C0_B_TASK_HANDLING_CNTL, 0x00, + R_C1_B_X_PORT_FORMATS_AND_CONF, 0x08, + R_C2_B_INPUT_REFERENCE_SIGNAL_DEFINITION, 0x00, + R_C3_B_I_PORT_FORMATS_AND_CONF, 0x80, + + /* 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, 0x00, + R_C5_B_HORIZ_INPUT_WINDOW_START_MSB, 0x00, + + /* hsize 0x02d0 = 720 */ + R_C6_B_HORIZ_INPUT_WINDOW_LENGTH, 0xd0, + R_C7_B_HORIZ_INPUT_WINDOW_LENGTH_MSB, 0x02, + + /* voffset 0x16 = 22 */ + R_C8_B_VERT_INPUT_WINDOW_START, 0x16, + R_C9_B_VERT_INPUT_WINDOW_START_MSB, 0x00, + + /* vsize 0x0120 = 288 */ + R_CA_B_VERT_INPUT_WINDOW_LENGTH, 0x20, + R_CB_B_VERT_INPUT_WINDOW_LENGTH_MSB, 0x01, + + /* hsize 0x02d0 = 720 */ + R_CC_B_HORIZ_OUTPUT_WINDOW_LENGTH, 0xd0, + R_CD_B_HORIZ_OUTPUT_WINDOW_LENGTH_MSB, 0x02, + + R_F0_LFCO_PER_LINE, 0xb0, /* Set PLL Register. 50hz 625 lines per frame, 27 MHz */ + R_F1_P_I_PARAM_SELECT, 0x05, /* low bit with 0xF0, (was 0x05) */ + R_F5_PULSGEN_LINE_LENGTH, 0xb0, + R_F6_PULSE_A_POS_LSB_AND_PULSEGEN_CONFIG, 0x01, + + 0x00, 0x00 +}; + +/* ============== SAA7715 VIDEO templates (end) ======= */ + +static const unsigned char saa7115_cfg_vbi_on[] = { + R_80_GLOBAL_CNTL_1, 0x00, /* reset tasks */ + R_88_POWER_SAVE_ADC_PORT_CNTL, 0xd0, /* reset scaler */ + R_80_GLOBAL_CNTL_1, 0x30, /* Activate both tasks */ + R_88_POWER_SAVE_ADC_PORT_CNTL, 0xf0, /* activate scaler */ + R_87_I_PORT_I_O_ENA_OUT_CLK_AND_GATED, 0x01, /* Enable I-port output */ + + 0x00, 0x00 +}; + +static const unsigned char saa7115_cfg_vbi_off[] = { + R_80_GLOBAL_CNTL_1, 0x00, /* reset tasks */ + R_88_POWER_SAVE_ADC_PORT_CNTL, 0xd0, /* reset scaler */ + R_80_GLOBAL_CNTL_1, 0x20, /* Activate only task "B" */ + R_88_POWER_SAVE_ADC_PORT_CNTL, 0xf0, /* activate scaler */ + R_87_I_PORT_I_O_ENA_OUT_CLK_AND_GATED, 0x01, /* Enable I-port output */ + + 0x00, 0x00 +}; + + +static const unsigned char saa7115_init_misc[] = { + R_81_V_SYNC_FLD_ID_SRC_SEL_AND_RETIMED_V_F, 0x01, + R_83_X_PORT_I_O_ENA_AND_OUT_CLK, 0x01, + R_84_I_PORT_SIGNAL_DEF, 0x20, + R_85_I_PORT_SIGNAL_POLAR, 0x21, + R_86_I_PORT_FIFO_FLAG_CNTL_AND_ARBIT, 0xc5, + R_87_I_PORT_I_O_ENA_OUT_CLK_AND_GATED, 0x01, + + /* Task A */ + R_A0_A_HORIZ_PRESCALING, 0x01, + R_A1_A_ACCUMULATION_LENGTH, 0x00, + R_A2_A_PRESCALER_DC_GAIN_AND_FIR_PREFILTER, 0x00, + + /* Configure controls at nominal value*/ + R_A4_A_LUMA_BRIGHTNESS_CNTL, 0x80, + R_A5_A_LUMA_CONTRAST_CNTL, 0x40, + R_A6_A_CHROMA_SATURATION_CNTL, 0x40, + + /* note: 2 x zoom ensures that VBI lines have same length as video lines. */ + R_A8_A_HORIZ_LUMA_SCALING_INC, 0x00, + R_A9_A_HORIZ_LUMA_SCALING_INC_MSB, 0x02, + + R_AA_A_HORIZ_LUMA_PHASE_OFF, 0x00, + + /* must be horiz lum scaling / 2 */ + R_AC_A_HORIZ_CHROMA_SCALING_INC, 0x00, + R_AD_A_HORIZ_CHROMA_SCALING_INC_MSB, 0x01, + + /* must be offset luma / 2 */ + R_AE_A_HORIZ_CHROMA_PHASE_OFF, 0x00, + + R_B0_A_VERT_LUMA_SCALING_INC, 0x00, + R_B1_A_VERT_LUMA_SCALING_INC_MSB, 0x04, + + R_B2_A_VERT_CHROMA_SCALING_INC, 0x00, + R_B3_A_VERT_CHROMA_SCALING_INC_MSB, 0x04, + + R_B4_A_VERT_SCALING_MODE_CNTL, 0x01, + + R_B8_A_VERT_CHROMA_PHASE_OFF_00, 0x00, + R_B9_A_VERT_CHROMA_PHASE_OFF_01, 0x00, + R_BA_A_VERT_CHROMA_PHASE_OFF_10, 0x00, + R_BB_A_VERT_CHROMA_PHASE_OFF_11, 0x00, + + R_BC_A_VERT_LUMA_PHASE_OFF_00, 0x00, + R_BD_A_VERT_LUMA_PHASE_OFF_01, 0x00, + R_BE_A_VERT_LUMA_PHASE_OFF_10, 0x00, + R_BF_A_VERT_LUMA_PHASE_OFF_11, 0x00, + + /* Task B */ + R_D0_B_HORIZ_PRESCALING, 0x01, + R_D1_B_ACCUMULATION_LENGTH, 0x00, + R_D2_B_PRESCALER_DC_GAIN_AND_FIR_PREFILTER, 0x00, + + /* Configure controls at nominal value*/ + R_D4_B_LUMA_BRIGHTNESS_CNTL, 0x80, + R_D5_B_LUMA_CONTRAST_CNTL, 0x40, + R_D6_B_CHROMA_SATURATION_CNTL, 0x40, + + /* hor lum scaling 0x0400 = 1 */ + R_D8_B_HORIZ_LUMA_SCALING_INC, 0x00, + R_D9_B_HORIZ_LUMA_SCALING_INC_MSB, 0x04, + + R_DA_B_HORIZ_LUMA_PHASE_OFF, 0x00, + + /* must be hor lum scaling / 2 */ + R_DC_B_HORIZ_CHROMA_SCALING, 0x00, + R_DD_B_HORIZ_CHROMA_SCALING_MSB, 0x02, + + /* must be offset luma / 2 */ + R_DE_B_HORIZ_PHASE_OFFSET_CRHOMA, 0x00, + + R_E0_B_VERT_LUMA_SCALING_INC, 0x00, + R_E1_B_VERT_LUMA_SCALING_INC_MSB, 0x04, + + R_E2_B_VERT_CHROMA_SCALING_INC, 0x00, + R_E3_B_VERT_CHROMA_SCALING_INC_MSB, 0x04, + + R_E4_B_VERT_SCALING_MODE_CNTL, 0x01, + + R_E8_B_VERT_CHROMA_PHASE_OFF_00, 0x00, + R_E9_B_VERT_CHROMA_PHASE_OFF_01, 0x00, + R_EA_B_VERT_CHROMA_PHASE_OFF_10, 0x00, + R_EB_B_VERT_CHROMA_PHASE_OFF_11, 0x00, + + R_EC_B_VERT_LUMA_PHASE_OFF_00, 0x00, + R_ED_B_VERT_LUMA_PHASE_OFF_01, 0x00, + R_EE_B_VERT_LUMA_PHASE_OFF_10, 0x00, + R_EF_B_VERT_LUMA_PHASE_OFF_11, 0x00, + + R_F2_NOMINAL_PLL2_DTO, 0x50, /* crystal clock = 24.576 MHz, target = 27MHz */ + R_F3_PLL_INCREMENT, 0x46, + R_F4_PLL2_STATUS, 0x00, + R_F7_PULSE_A_POS_MSB, 0x4b, /* not the recommended settings! */ + R_F8_PULSE_B_POS, 0x00, + R_F9_PULSE_B_POS_MSB, 0x4b, + R_FA_PULSE_C_POS, 0x00, + R_FB_PULSE_C_POS_MSB, 0x4b, + + /* PLL2 lock detection settings: 71 lines 50% phase error */ + R_FF_S_PLL_MAX_PHASE_ERR_THRESH_NUM_LINES, 0x88, + + /* Turn off VBI */ + R_40_SLICER_CNTL_1, 0x20, /* No framing code errors allowed. */ + R_41_LCR_BASE, 0xff, + R_41_LCR_BASE+1, 0xff, + R_41_LCR_BASE+2, 0xff, + R_41_LCR_BASE+3, 0xff, + R_41_LCR_BASE+4, 0xff, + R_41_LCR_BASE+5, 0xff, + R_41_LCR_BASE+6, 0xff, + R_41_LCR_BASE+7, 0xff, + R_41_LCR_BASE+8, 0xff, + R_41_LCR_BASE+9, 0xff, + R_41_LCR_BASE+10, 0xff, + R_41_LCR_BASE+11, 0xff, + R_41_LCR_BASE+12, 0xff, + R_41_LCR_BASE+13, 0xff, + R_41_LCR_BASE+14, 0xff, + R_41_LCR_BASE+15, 0xff, + R_41_LCR_BASE+16, 0xff, + R_41_LCR_BASE+17, 0xff, + R_41_LCR_BASE+18, 0xff, + R_41_LCR_BASE+19, 0xff, + R_41_LCR_BASE+20, 0xff, + R_41_LCR_BASE+21, 0xff, + R_41_LCR_BASE+22, 0xff, + R_58_PROGRAM_FRAMING_CODE, 0x40, + R_59_H_OFF_FOR_SLICER, 0x47, + R_5B_FLD_OFF_AND_MSB_FOR_H_AND_V_OFF, 0x83, + R_5D_DID, 0xbd, + R_5E_SDID, 0x35, + + R_02_INPUT_CNTL_1, 0xc4, /* input tuner -> input 4, amplifier active */ + + R_80_GLOBAL_CNTL_1, 0x20, /* enable task B */ + R_88_POWER_SAVE_ADC_PORT_CNTL, 0xd0, + R_88_POWER_SAVE_ADC_PORT_CNTL, 0xf0, + 0x00, 0x00 +}; + +static int saa711x_odd_parity(u8 c) +{ + c ^= (c >> 4); + c ^= (c >> 2); + c ^= (c >> 1); + + return c & 1; +} + +static int saa711x_decode_vps(u8 *dst, u8 *p) +{ + static const u8 biphase_tbl[] = { + 0xf0, 0x78, 0x70, 0xf0, 0xb4, 0x3c, 0x34, 0xb4, + 0xb0, 0x38, 0x30, 0xb0, 0xf0, 0x78, 0x70, 0xf0, + 0xd2, 0x5a, 0x52, 0xd2, 0x96, 0x1e, 0x16, 0x96, + 0x92, 0x1a, 0x12, 0x92, 0xd2, 0x5a, 0x52, 0xd2, + 0xd0, 0x58, 0x50, 0xd0, 0x94, 0x1c, 0x14, 0x94, + 0x90, 0x18, 0x10, 0x90, 0xd0, 0x58, 0x50, 0xd0, + 0xf0, 0x78, 0x70, 0xf0, 0xb4, 0x3c, 0x34, 0xb4, + 0xb0, 0x38, 0x30, 0xb0, 0xf0, 0x78, 0x70, 0xf0, + 0xe1, 0x69, 0x61, 0xe1, 0xa5, 0x2d, 0x25, 0xa5, + 0xa1, 0x29, 0x21, 0xa1, 0xe1, 0x69, 0x61, 0xe1, + 0xc3, 0x4b, 0x43, 0xc3, 0x87, 0x0f, 0x07, 0x87, + 0x83, 0x0b, 0x03, 0x83, 0xc3, 0x4b, 0x43, 0xc3, + 0xc1, 0x49, 0x41, 0xc1, 0x85, 0x0d, 0x05, 0x85, + 0x81, 0x09, 0x01, 0x81, 0xc1, 0x49, 0x41, 0xc1, + 0xe1, 0x69, 0x61, 0xe1, 0xa5, 0x2d, 0x25, 0xa5, + 0xa1, 0x29, 0x21, 0xa1, 0xe1, 0x69, 0x61, 0xe1, + 0xe0, 0x68, 0x60, 0xe0, 0xa4, 0x2c, 0x24, 0xa4, + 0xa0, 0x28, 0x20, 0xa0, 0xe0, 0x68, 0x60, 0xe0, + 0xc2, 0x4a, 0x42, 0xc2, 0x86, 0x0e, 0x06, 0x86, + 0x82, 0x0a, 0x02, 0x82, 0xc2, 0x4a, 0x42, 0xc2, + 0xc0, 0x48, 0x40, 0xc0, 0x84, 0x0c, 0x04, 0x84, + 0x80, 0x08, 0x00, 0x80, 0xc0, 0x48, 0x40, 0xc0, + 0xe0, 0x68, 0x60, 0xe0, 0xa4, 0x2c, 0x24, 0xa4, + 0xa0, 0x28, 0x20, 0xa0, 0xe0, 0x68, 0x60, 0xe0, + 0xf0, 0x78, 0x70, 0xf0, 0xb4, 0x3c, 0x34, 0xb4, + 0xb0, 0x38, 0x30, 0xb0, 0xf0, 0x78, 0x70, 0xf0, + 0xd2, 0x5a, 0x52, 0xd2, 0x96, 0x1e, 0x16, 0x96, + 0x92, 0x1a, 0x12, 0x92, 0xd2, 0x5a, 0x52, 0xd2, + 0xd0, 0x58, 0x50, 0xd0, 0x94, 0x1c, 0x14, 0x94, + 0x90, 0x18, 0x10, 0x90, 0xd0, 0x58, 0x50, 0xd0, + 0xf0, 0x78, 0x70, 0xf0, 0xb4, 0x3c, 0x34, 0xb4, + 0xb0, 0x38, 0x30, 0xb0, 0xf0, 0x78, 0x70, 0xf0, + }; + 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]] & 0xf) | ((biphase_tbl[p[i]] & 0xf) << 4); + dst[i / 2] = c; + } + return err & 0xf0; +} + +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 = 0x80; + if (state->cgcdiv == 3) + acc |= 0x40; + } + if (state->apll) + acc |= 0x08; + + if (state->double_asclk) { + acpf <<= 1; + acni <<= 1; + } + saa711x_write(sd, R_38_CLK_RATIO_AMXCLK_TO_ASCLK, 0x03); + saa711x_write(sd, R_39_CLK_RATIO_ASCLK_TO_ALRCLK, 0x10 << 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 & 0xff); + saa711x_write(sd, R_30_AUD_MAST_CLK_CYCLES_PER_FIELD+1, + (acpf >> 8) & 0xff); + saa711x_write(sd, R_30_AUD_MAST_CLK_CYCLES_PER_FIELD+2, + (acpf >> 16) & 0x03); + + saa711x_write(sd, R_34_AUD_MAST_CLK_NOMINAL_INC, acni & 0xff); + saa711x_write(sd, R_34_AUD_MAST_CLK_NOMINAL_INC+1, (acni >> 8) & 0xff); + saa711x_write(sd, R_34_AUD_MAST_CLK_NOMINAL_INC+2, (acni >> 16) & 0x3f); + 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) & 0x7f; + 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 | 0x80); + 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 & 0xff)); + saa711x_write(sd, R_CD_B_HORIZ_OUTPUT_WINDOW_LENGTH_MSB, + (u8) ((width >> 8) & 0xff)); + + /* 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 & 0xff)); + saa711x_write(sd, R_CF_B_VERT_OUTPUT_WINDOW_LENGTH_MSB, + (u8) ((res >> 8) & 0xff)); + + /* 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 & 0x3f)); + + 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 & 0xff)); + saa711x_write(sd, R_D9_B_HORIZ_LUMA_SCALING_INC_MSB, + (u8) ((HFSC >> 8) & 0xff)); + /* 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) & 0xff)); + saa711x_write(sd, R_DD_B_HORIZ_CHROMA_SCALING_MSB, + (u8) ((HFSC >> 9) & 0xff)); + + 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 & 0xff)); + saa711x_write(sd, R_E1_B_VERT_LUMA_SCALING_INC_MSB, + (u8) ((VSCY >> 8) & 0xff)); + /* write V fine-scaling (chrominance) */ + saa711x_write(sd, R_E2_B_VERT_CHROMA_SCALING_INC, + (u8) (VSCY & 0xff)); + saa711x_write(sd, R_E3_B_VERT_CHROMA_SCALING_INC_MSB, + (u8) ((VSCY >> 8) & 0xff)); + + 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) | 0x20); + + 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 (4.43Mhz) NTSC M (3.58MHz) + 001 NTSC 4.43 (50 Hz) PAL 4.43 (60 Hz) + 010 Combination-PAL N (3.58MHz) NTSC 4.43 (60 Hz) + 011 NTSC N (3.58MHz) PAL M (3.58MHz) + 100 reserved NTSC-Japan (3.58MHz) + */ + if (state->ident <= SAA7113 || + state->ident == GM7113C) { + u8 reg = saa711x_read(sd, R_0E_CHROMA_CNTL_1) & 0x8f; + + if (std == V4L2_STD_PAL_M) { + reg |= 0x30; + } else if (std == V4L2_STD_PAL_Nc) { + reg |= 0x20; + } else if (std == V4L2_STD_PAL_60) { + reg |= 0x10; + } else if (std == V4L2_STD_NTSC_M_JP) { + reg |= 0x40; + } else if (std & V4L2_STD_SECAM) { + reg |= 0x50; + } + 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) & 0x10; + + 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] = 0xff; + + if (fmt == NULL) { + /* raw VBI */ + if (is_50hz) + for (i = 6; i <= 23; i++) + lcr[i] = 0xdd; + else + for (i = 10; i <= 21; i++) + lcr[i] = 0xdd; + } 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] |= 0xf << (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 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) & 0x10) + 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 & 0xf]; + 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_pad_config *cfg, + 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[] = { + 0xa0, 0xa0, 0xa0, 0xa0, 0xa0, 0xa0, 0xa0, 0xa0, 0xa0, 0xa0 + }; + 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 ^= 0x40; + + /* 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 & 0x40) != 0); + vbi->line = (id1 & 0x3f) << 3; + vbi->line |= (id2 & 0x70) >> 4; + + /* Obtain data type */ + id2 &= 0xf; + + /* 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 (!saa711x_odd_parity(p[0]) || !saa711x_odd_parity(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 & 0xff; + 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) ? 0xffff : 0x0; + 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) ? 0xf8 : 0xf0; + + 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) & 0x3f) | + ((output & 0xc0) ^ 0x40)); + saa711x_write(sd, R_13_RT_X_PORT_OUT_CNTL, + (saa711x_read(sd, R_13_RT_X_PORT_OUT_CNTL) & 0xf0) | + ((output & 2) ? 0x0a : 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) & 0x7f) | + (state->input >= SAA7115_SVIDEO0 ? 0x80 : 0x0)); + + 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) & 0xfe) | + (state->output & 0x01)); + } + if (state->ident > SAA7111A) { + if (config & SAA7115_IDQ_IS_DEFAULT) + saa711x_write(sd, R_85_I_PORT_SIGNAL_POLAR, 0x20); + else + saa711x_write(sd, R_85_I_PORT_SIGNAL_POLAR, 0x21); + } + 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, 0x11, (saa711x_read(sd, 0x11) & 0x7f) | + (val ? 0x80 : 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, 0x6b) & 0xc0) + return -EIO; + data->data[0] = saa711x_read(sd, 0x6c); + data->data[1] = saa711x_read(sd, 0x6d); + return 0; + case V4L2_SLICED_CAPTION_525: + if (data->field == 0) { + /* CC */ + if (saa711x_read(sd, 0x66) & 0x30) + return -EIO; + data->data[0] = saa711x_read(sd, 0x69); + data->data[1] = saa711x_read(sd, 0x6a); + return 0; + } + /* XDS */ + if (saa711x_read(sd, 0x66) & 0xc0) + return -EIO; + data->data[0] = saa711x_read(sd, 0x67); + data->data[1] = saa711x_read(sd, 0x68); + 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 & 0x03) { + 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 & 0x40) { + *std = V4L2_STD_UNKNOWN; + goto ret; + } + + if (reg1f & 0x20) + *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 = 0x80; + 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 & 0xc1) == 0x81 && (reg1e & 0xc0) == 0x80) + *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 & 0xff); + 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 & 0xff, reg->val & 0xff); + 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 & 0xc1) == 0x81; + v4l2_info(sd, "Video signal: %s\n", signalOk ? "ok" : "bad"); + v4l2_info(sd, "Frequency: %s\n", (reg1f & 0x20) ? "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 & 0xc1) == 0x81 && (reg1e & 0xc0) == 0x80; + vcr = !(reg1f & 0x10); + + 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 & 0x20) ? "60 Hz" : "50 Hz"); + + switch (reg1e & 0x03) { + 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] & 0x0f) + '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] & 0xf0) { + 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] & 0x80) ? 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 0x00) reads. So, we need to also + * accept at least verion 0. For now, let's just + * assume that a device that returns "0000" for + * the lower nibble is a gm7113c. + */ + + strlcpy(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)) { + strlcpy(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) +{ + 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; + + strlcpy(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[DEMOD_PAD_IF_INPUT].flags = MEDIA_PAD_FL_SINK; + state->pads[DEMOD_PAD_VID_OUT].flags = MEDIA_PAD_FL_SOURCE; + state->pads[DEMOD_PAD_VBI_OUT].flags = MEDIA_PAD_FL_SOURCE; + + sd->entity.function = MEDIA_ENT_F_ATV_DECODER; + + ret = media_entity_pads_init(&sd->entity, DEMOD_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 int 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); + return 0; +} + +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); |