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WSL2-Linux-Kernel/drivers/media/video/saa717x.c

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C
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/*
* saa717x - Philips SAA717xHL video decoder driver
*
* Based on the saa7115 driver
*
* Changes by Ohta Kyuma <alpha292@bremen.or.jp>
* - Apply to SAA717x,NEC uPD64031,uPD64083. (1/31/2004)
*
* Changes by T.Adachi (tadachi@tadachi-net.com)
* - support audio, video scaler etc, and checked the initialize sequence.
*
* Cleaned up by Hans Verkuil <hverkuil@xs4all.nl>
*
* Note: this is a reversed engineered driver based on captures from
* the I2C bus under Windows. This chip is very similar to the saa7134,
* though. Unfortunately, this driver is currently only working for NTSC.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*/
#include <linux/module.h>
#include <linux/kernel.h>
#include <linux/sched.h>
#include <linux/videodev2.h>
#include <linux/i2c.h>
#include <media/v4l2-device.h>
#include <media/v4l2-i2c-drv.h>
MODULE_DESCRIPTION("Philips SAA717x audio/video decoder driver");
MODULE_AUTHOR("K. Ohta, T. Adachi, Hans Verkuil");
MODULE_LICENSE("GPL");
static int debug;
module_param(debug, int, 0644);
MODULE_PARM_DESC(debug, "Debug level (0-1)");
/*
* Generic i2c probe
* concerning the addresses: i2c wants 7 bit (without the r/w bit), so '>>1'
*/
struct saa717x_state {
struct v4l2_subdev sd;
v4l2_std_id std;
int input;
int enable;
int radio;
int bright;
int contrast;
int hue;
int sat;
int playback;
int audio;
int tuner_audio_mode;
int audio_main_mute;
int audio_main_vol_r;
int audio_main_vol_l;
u16 audio_main_bass;
u16 audio_main_treble;
u16 audio_main_volume;
u16 audio_main_balance;
int audio_input;
};
static inline struct saa717x_state *to_state(struct v4l2_subdev *sd)
{
return container_of(sd, struct saa717x_state, sd);
}
/* ----------------------------------------------------------------------- */
/* for audio mode */
#define TUNER_AUDIO_MONO 0 /* LL */
#define TUNER_AUDIO_STEREO 1 /* LR */
#define TUNER_AUDIO_LANG1 2 /* LL */
#define TUNER_AUDIO_LANG2 3 /* RR */
#define SAA717X_NTSC_WIDTH (704)
#define SAA717X_NTSC_HEIGHT (480)
/* ----------------------------------------------------------------------- */
static int saa717x_write(struct v4l2_subdev *sd, u32 reg, u32 value)
{
struct i2c_client *client = v4l2_get_subdevdata(sd);
struct i2c_adapter *adap = client->adapter;
int fw_addr = reg == 0x454 || (reg >= 0x464 && reg <= 0x478) || reg == 0x480 || reg == 0x488;
unsigned char mm1[6];
struct i2c_msg msg;
msg.flags = 0;
msg.addr = client->addr;
mm1[0] = (reg >> 8) & 0xff;
mm1[1] = reg & 0xff;
if (fw_addr) {
mm1[4] = (value >> 16) & 0xff;
mm1[3] = (value >> 8) & 0xff;
mm1[2] = value & 0xff;
} else {
mm1[2] = value & 0xff;
}
msg.len = fw_addr ? 5 : 3; /* Long Registers have *only* three bytes! */
msg.buf = mm1;
v4l2_dbg(2, debug, sd, "wrote: reg 0x%03x=%08x\n", reg, value);
return i2c_transfer(adap, &msg, 1) == 1;
}
static void saa717x_write_regs(struct v4l2_subdev *sd, u32 *data)
{
while (data[0] || data[1]) {
saa717x_write(sd, data[0], data[1]);
data += 2;
}
}
static u32 saa717x_read(struct v4l2_subdev *sd, u32 reg)
{
struct i2c_client *client = v4l2_get_subdevdata(sd);
struct i2c_adapter *adap = client->adapter;
int fw_addr = (reg >= 0x404 && reg <= 0x4b8) || reg == 0x528;
unsigned char mm1[2];
unsigned char mm2[4] = { 0, 0, 0, 0 };
struct i2c_msg msgs[2];
u32 value;
msgs[0].flags = 0;
msgs[1].flags = I2C_M_RD;
msgs[0].addr = msgs[1].addr = client->addr;
mm1[0] = (reg >> 8) & 0xff;
mm1[1] = reg & 0xff;
msgs[0].len = 2;
msgs[0].buf = mm1;
msgs[1].len = fw_addr ? 3 : 1; /* Multibyte Registers contains *only* 3 bytes */
msgs[1].buf = mm2;
i2c_transfer(adap, msgs, 2);
if (fw_addr)
value = (mm2[2] & 0xff) | ((mm2[1] & 0xff) >> 8) | ((mm2[0] & 0xff) >> 16);
else
value = mm2[0] & 0xff;
v4l2_dbg(2, debug, sd, "read: reg 0x%03x=0x%08x\n", reg, value);
return value;
}
/* ----------------------------------------------------------------------- */
static u32 reg_init_initialize[] =
{
/* from linux driver */
0x101, 0x008, /* Increment delay */
0x103, 0x000, /* Analog input control 2 */
0x104, 0x090, /* Analog input control 3 */
0x105, 0x090, /* Analog input control 4 */
0x106, 0x0eb, /* Horizontal sync start */
0x107, 0x0e0, /* Horizontal sync stop */
0x109, 0x055, /* Luminance control */
0x10f, 0x02a, /* Chroma gain control */
0x110, 0x000, /* Chroma control 2 */
0x114, 0x045, /* analog/ADC */
0x118, 0x040, /* RAW data gain */
0x119, 0x080, /* RAW data offset */
0x044, 0x000, /* VBI horizontal input window start (L) TASK A */
0x045, 0x000, /* VBI horizontal input window start (H) TASK A */
0x046, 0x0cf, /* VBI horizontal input window stop (L) TASK A */
0x047, 0x002, /* VBI horizontal input window stop (H) TASK A */
0x049, 0x000, /* VBI vertical input window start (H) TASK A */
0x04c, 0x0d0, /* VBI horizontal output length (L) TASK A */
0x04d, 0x002, /* VBI horizontal output length (H) TASK A */
0x064, 0x080, /* Lumina brightness TASK A */
0x065, 0x040, /* Luminance contrast TASK A */
0x066, 0x040, /* Chroma saturation TASK A */
/* 067H: Reserved */
0x068, 0x000, /* VBI horizontal scaling increment (L) TASK A */
0x069, 0x004, /* VBI horizontal scaling increment (H) TASK A */
0x06a, 0x000, /* VBI phase offset TASK A */
0x06e, 0x000, /* Horizontal phase offset Luma TASK A */
0x06f, 0x000, /* Horizontal phase offset Chroma TASK A */
0x072, 0x000, /* Vertical filter mode TASK A */
0x084, 0x000, /* VBI horizontal input window start (L) TAKS B */
0x085, 0x000, /* VBI horizontal input window start (H) TAKS B */
0x086, 0x0cf, /* VBI horizontal input window stop (L) TAKS B */
0x087, 0x002, /* VBI horizontal input window stop (H) TAKS B */
0x089, 0x000, /* VBI vertical input window start (H) TAKS B */
0x08c, 0x0d0, /* VBI horizontal output length (L) TASK B */
0x08d, 0x002, /* VBI horizontal output length (H) TASK B */
0x0a4, 0x080, /* Lumina brightness TASK B */
0x0a5, 0x040, /* Luminance contrast TASK B */
0x0a6, 0x040, /* Chroma saturation TASK B */
/* 0A7H reserved */
0x0a8, 0x000, /* VBI horizontal scaling increment (L) TASK B */
0x0a9, 0x004, /* VBI horizontal scaling increment (H) TASK B */
0x0aa, 0x000, /* VBI phase offset TASK B */
0x0ae, 0x000, /* Horizontal phase offset Luma TASK B */
0x0af, 0x000, /*Horizontal phase offset Chroma TASK B */
0x0b2, 0x000, /* Vertical filter mode TASK B */
0x00c, 0x000, /* Start point GREEN path */
0x00d, 0x000, /* Start point BLUE path */
0x00e, 0x000, /* Start point RED path */
0x010, 0x010, /* GREEN path gamma curve --- */
0x011, 0x020,
0x012, 0x030,
0x013, 0x040,
0x014, 0x050,
0x015, 0x060,
0x016, 0x070,
0x017, 0x080,
0x018, 0x090,
0x019, 0x0a0,
0x01a, 0x0b0,
0x01b, 0x0c0,
0x01c, 0x0d0,
0x01d, 0x0e0,
0x01e, 0x0f0,
0x01f, 0x0ff, /* --- GREEN path gamma curve */
0x020, 0x010, /* BLUE path gamma curve --- */
0x021, 0x020,
0x022, 0x030,
0x023, 0x040,
0x024, 0x050,
0x025, 0x060,
0x026, 0x070,
0x027, 0x080,
0x028, 0x090,
0x029, 0x0a0,
0x02a, 0x0b0,
0x02b, 0x0c0,
0x02c, 0x0d0,
0x02d, 0x0e0,
0x02e, 0x0f0,
0x02f, 0x0ff, /* --- BLUE path gamma curve */
0x030, 0x010, /* RED path gamma curve --- */
0x031, 0x020,
0x032, 0x030,
0x033, 0x040,
0x034, 0x050,
0x035, 0x060,
0x036, 0x070,
0x037, 0x080,
0x038, 0x090,
0x039, 0x0a0,
0x03a, 0x0b0,
0x03b, 0x0c0,
0x03c, 0x0d0,
0x03d, 0x0e0,
0x03e, 0x0f0,
0x03f, 0x0ff, /* --- RED path gamma curve */
0x109, 0x085, /* Luminance control */
/**** from app start ****/
0x584, 0x000, /* AGC gain control */
0x585, 0x000, /* Program count */
0x586, 0x003, /* Status reset */
0x588, 0x0ff, /* Number of audio samples (L) */
0x589, 0x00f, /* Number of audio samples (M) */
0x58a, 0x000, /* Number of audio samples (H) */
0x58b, 0x000, /* Audio select */
0x58c, 0x010, /* Audio channel assign1 */
0x58d, 0x032, /* Audio channel assign2 */
0x58e, 0x054, /* Audio channel assign3 */
0x58f, 0x023, /* Audio format */
0x590, 0x000, /* SIF control */
0x595, 0x000, /* ?? */
0x596, 0x000, /* ?? */
0x597, 0x000, /* ?? */
0x464, 0x00, /* Digital input crossbar1 */
0x46c, 0xbbbb10, /* Digital output selection1-3 */
0x470, 0x101010, /* Digital output selection4-6 */
0x478, 0x00, /* Sound feature control */
0x474, 0x18, /* Softmute control */
0x454, 0x0425b9, /* Sound Easy programming(reset) */
0x454, 0x042539, /* Sound Easy programming(reset) */
/**** common setting( of DVD play, including scaler commands) ****/
0x042, 0x003, /* Data path configuration for VBI (TASK A) */
0x082, 0x003, /* Data path configuration for VBI (TASK B) */
0x108, 0x0f8, /* Sync control */
0x2a9, 0x0fd, /* ??? */
0x102, 0x089, /* select video input "mode 9" */
0x111, 0x000, /* Mode/delay control */
0x10e, 0x00a, /* Chroma control 1 */
0x594, 0x002, /* SIF, analog I/O select */
0x454, 0x0425b9, /* Sound */
0x454, 0x042539,
0x111, 0x000,
0x10e, 0x00a,
0x464, 0x000,
0x300, 0x000,
0x301, 0x006,
0x302, 0x000,
0x303, 0x006,
0x308, 0x040,
0x309, 0x000,
0x30a, 0x000,
0x30b, 0x000,
0x000, 0x002,
0x001, 0x000,
0x002, 0x000,
0x003, 0x000,
0x004, 0x033,
0x040, 0x01d,
0x041, 0x001,
0x042, 0x004,
0x043, 0x000,
0x080, 0x01e,
0x081, 0x001,
0x082, 0x004,
0x083, 0x000,
0x190, 0x018,
0x115, 0x000,
0x116, 0x012,
0x117, 0x018,
0x04a, 0x011,
0x08a, 0x011,
0x04b, 0x000,
0x08b, 0x000,
0x048, 0x000,
0x088, 0x000,
0x04e, 0x012,
0x08e, 0x012,
0x058, 0x012,
0x098, 0x012,
0x059, 0x000,
0x099, 0x000,
0x05a, 0x003,
0x09a, 0x003,
0x05b, 0x001,
0x09b, 0x001,
0x054, 0x008,
0x094, 0x008,
0x055, 0x000,
0x095, 0x000,
0x056, 0x0c7,
0x096, 0x0c7,
0x057, 0x002,
0x097, 0x002,
0x0ff, 0x0ff,
0x060, 0x001,
0x0a0, 0x001,
0x061, 0x000,
0x0a1, 0x000,
0x062, 0x000,
0x0a2, 0x000,
0x063, 0x000,
0x0a3, 0x000,
0x070, 0x000,
0x0b0, 0x000,
0x071, 0x004,
0x0b1, 0x004,
0x06c, 0x0e9,
0x0ac, 0x0e9,
0x06d, 0x003,
0x0ad, 0x003,
0x05c, 0x0d0,
0x09c, 0x0d0,
0x05d, 0x002,
0x09d, 0x002,
0x05e, 0x0f2,
0x09e, 0x0f2,
0x05f, 0x000,
0x09f, 0x000,
0x074, 0x000,
0x0b4, 0x000,
0x075, 0x000,
0x0b5, 0x000,
0x076, 0x000,
0x0b6, 0x000,
0x077, 0x000,
0x0b7, 0x000,
0x195, 0x008,
0x0ff, 0x0ff,
0x108, 0x0f8,
0x111, 0x000,
0x10e, 0x00a,
0x2a9, 0x0fd,
0x464, 0x001,
0x454, 0x042135,
0x598, 0x0e7,
0x599, 0x07d,
0x59a, 0x018,
0x59c, 0x066,
0x59d, 0x090,
0x59e, 0x001,
0x584, 0x000,
0x585, 0x000,
0x586, 0x003,
0x588, 0x0ff,
0x589, 0x00f,
0x58a, 0x000,
0x58b, 0x000,
0x58c, 0x010,
0x58d, 0x032,
0x58e, 0x054,
0x58f, 0x023,
0x590, 0x000,
0x595, 0x000,
0x596, 0x000,
0x597, 0x000,
0x464, 0x000,
0x46c, 0xbbbb10,
0x470, 0x101010,
0x478, 0x000,
0x474, 0x018,
0x454, 0x042135,
0x598, 0x0e7,
0x599, 0x07d,
0x59a, 0x018,
0x59c, 0x066,
0x59d, 0x090,
0x59e, 0x001,
0x584, 0x000,
0x585, 0x000,
0x586, 0x003,
0x588, 0x0ff,
0x589, 0x00f,
0x58a, 0x000,
0x58b, 0x000,
0x58c, 0x010,
0x58d, 0x032,
0x58e, 0x054,
0x58f, 0x023,
0x590, 0x000,
0x595, 0x000,
0x596, 0x000,
0x597, 0x000,
0x464, 0x000,
0x46c, 0xbbbb10,
0x470, 0x101010,
0x478, 0x000,
0x474, 0x018,
0x454, 0x042135,
0x598, 0x0e7,
0x599, 0x07d,
0x59a, 0x018,
0x59c, 0x066,
0x59d, 0x090,
0x59e, 0x001,
0x584, 0x000,
0x585, 0x000,
0x586, 0x003,
0x588, 0x0ff,
0x589, 0x00f,
0x58a, 0x000,
0x58b, 0x000,
0x58c, 0x010,
0x58d, 0x032,
0x58e, 0x054,
0x58f, 0x023,
0x590, 0x000,
0x595, 0x000,
0x596, 0x000,
0x597, 0x000,
0x464, 0x000,
0x46c, 0xbbbb10,
0x470, 0x101010,
0x478, 0x000,
0x474, 0x018,
0x454, 0x042135,
0x193, 0x000,
0x300, 0x000,
0x301, 0x006,
0x302, 0x000,
0x303, 0x006,
0x308, 0x040,
0x309, 0x000,
0x30a, 0x000,
0x30b, 0x000,
0x000, 0x002,
0x001, 0x000,
0x002, 0x000,
0x003, 0x000,
0x004, 0x033,
0x040, 0x01d,
0x041, 0x001,
0x042, 0x004,
0x043, 0x000,
0x080, 0x01e,
0x081, 0x001,
0x082, 0x004,
0x083, 0x000,
0x190, 0x018,
0x115, 0x000,
0x116, 0x012,
0x117, 0x018,
0x04a, 0x011,
0x08a, 0x011,
0x04b, 0x000,
0x08b, 0x000,
0x048, 0x000,
0x088, 0x000,
0x04e, 0x012,
0x08e, 0x012,
0x058, 0x012,
0x098, 0x012,
0x059, 0x000,
0x099, 0x000,
0x05a, 0x003,
0x09a, 0x003,
0x05b, 0x001,
0x09b, 0x001,
0x054, 0x008,
0x094, 0x008,
0x055, 0x000,
0x095, 0x000,
0x056, 0x0c7,
0x096, 0x0c7,
0x057, 0x002,
0x097, 0x002,
0x060, 0x001,
0x0a0, 0x001,
0x061, 0x000,
0x0a1, 0x000,
0x062, 0x000,
0x0a2, 0x000,
0x063, 0x000,
0x0a3, 0x000,
0x070, 0x000,
0x0b0, 0x000,
0x071, 0x004,
0x0b1, 0x004,
0x06c, 0x0e9,
0x0ac, 0x0e9,
0x06d, 0x003,
0x0ad, 0x003,
0x05c, 0x0d0,
0x09c, 0x0d0,
0x05d, 0x002,
0x09d, 0x002,
0x05e, 0x0f2,
0x09e, 0x0f2,
0x05f, 0x000,
0x09f, 0x000,
0x074, 0x000,
0x0b4, 0x000,
0x075, 0x000,
0x0b5, 0x000,
0x076, 0x000,
0x0b6, 0x000,
0x077, 0x000,
0x0b7, 0x000,
0x195, 0x008,
0x598, 0x0e7,
0x599, 0x07d,
0x59a, 0x018,
0x59c, 0x066,
0x59d, 0x090,
0x59e, 0x001,
0x584, 0x000,
0x585, 0x000,
0x586, 0x003,
0x588, 0x0ff,
0x589, 0x00f,
0x58a, 0x000,
0x58b, 0x000,
0x58c, 0x010,
0x58d, 0x032,
0x58e, 0x054,
0x58f, 0x023,
0x590, 0x000,
0x595, 0x000,
0x596, 0x000,
0x597, 0x000,
0x464, 0x000,
0x46c, 0xbbbb10,
0x470, 0x101010,
0x478, 0x000,
0x474, 0x018,
0x454, 0x042135,
0x193, 0x0a6,
0x108, 0x0f8,
0x042, 0x003,
0x082, 0x003,
0x454, 0x0425b9,
0x454, 0x042539,
0x193, 0x000,
0x193, 0x0a6,
0x464, 0x000,
0, 0
};
/* Tuner */
static u32 reg_init_tuner_input[] = {
0x108, 0x0f8, /* Sync control */
0x111, 0x000, /* Mode/delay control */
0x10e, 0x00a, /* Chroma control 1 */
0, 0
};
/* Composite */
static u32 reg_init_composite_input[] = {
0x108, 0x0e8, /* Sync control */
0x111, 0x000, /* Mode/delay control */
0x10e, 0x04a, /* Chroma control 1 */
0, 0
};
/* S-Video */
static u32 reg_init_svideo_input[] = {
0x108, 0x0e8, /* Sync control */
0x111, 0x000, /* Mode/delay control */
0x10e, 0x04a, /* Chroma control 1 */
0, 0
};
static u32 reg_set_audio_template[4][2] =
{
{ /* for MONO
tadachi 6/29 DMA audio output select?
Register 0x46c
7-4: DMA2, 3-0: DMA1 ch. DMA4, DMA3 DMA2, DMA1
0: MAIN left, 1: MAIN right
2: AUX1 left, 3: AUX1 right
4: AUX2 left, 5: AUX2 right
6: DPL left, 7: DPL right
8: DPL center, 9: DPL surround
A: monitor output, B: digital sense */
0xbbbb00,
/* tadachi 6/29 DAC and I2S output select?
Register 0x470
7-4:DAC right ch. 3-0:DAC left ch.
I2S1 right,left I2S2 right,left */
0x00,
},
{ /* for STEREO */
0xbbbb10, 0x101010,
},
{ /* for LANG1 */
0xbbbb00, 0x00,
},
{ /* for LANG2/SAP */
0xbbbb11, 0x111111,
}
};
/* Get detected audio flags (from saa7134 driver) */
static void get_inf_dev_status(struct v4l2_subdev *sd,
int *dual_flag, int *stereo_flag)
{
u32 reg_data3;
static char *stdres[0x20] = {
[0x00] = "no standard detected",
[0x01] = "B/G (in progress)",
[0x02] = "D/K (in progress)",
[0x03] = "M (in progress)",
[0x04] = "B/G A2",
[0x05] = "B/G NICAM",
[0x06] = "D/K A2 (1)",
[0x07] = "D/K A2 (2)",
[0x08] = "D/K A2 (3)",
[0x09] = "D/K NICAM",
[0x0a] = "L NICAM",
[0x0b] = "I NICAM",
[0x0c] = "M Korea",
[0x0d] = "M BTSC ",
[0x0e] = "M EIAJ",
[0x0f] = "FM radio / IF 10.7 / 50 deemp",
[0x10] = "FM radio / IF 10.7 / 75 deemp",
[0x11] = "FM radio / IF sel / 50 deemp",
[0x12] = "FM radio / IF sel / 75 deemp",
[0x13 ... 0x1e] = "unknown",
[0x1f] = "??? [in progress]",
};
*dual_flag = *stereo_flag = 0;
/* (demdec status: 0x528) */
/* read current status */
reg_data3 = saa717x_read(sd, 0x0528);
v4l2_dbg(1, debug, sd, "tvaudio thread status: 0x%x [%s%s%s]\n",
reg_data3, stdres[reg_data3 & 0x1f],
(reg_data3 & 0x000020) ? ",stereo" : "",
(reg_data3 & 0x000040) ? ",dual" : "");
v4l2_dbg(1, debug, sd, "detailed status: "
"%s#%s#%s#%s#%s#%s#%s#%s#%s#%s#%s#%s#%s#%s\n",
(reg_data3 & 0x000080) ? " A2/EIAJ pilot tone " : "",
(reg_data3 & 0x000100) ? " A2/EIAJ dual " : "",
(reg_data3 & 0x000200) ? " A2/EIAJ stereo " : "",
(reg_data3 & 0x000400) ? " A2/EIAJ noise mute " : "",
(reg_data3 & 0x000800) ? " BTSC/FM radio pilot " : "",
(reg_data3 & 0x001000) ? " SAP carrier " : "",
(reg_data3 & 0x002000) ? " BTSC stereo noise mute " : "",
(reg_data3 & 0x004000) ? " SAP noise mute " : "",
(reg_data3 & 0x008000) ? " VDSP " : "",
(reg_data3 & 0x010000) ? " NICST " : "",
(reg_data3 & 0x020000) ? " NICDU " : "",
(reg_data3 & 0x040000) ? " NICAM muted " : "",
(reg_data3 & 0x080000) ? " NICAM reserve sound " : "",
(reg_data3 & 0x100000) ? " init done " : "");
if (reg_data3 & 0x000220) {
v4l2_dbg(1, debug, sd, "ST!!!\n");
*stereo_flag = 1;
}
if (reg_data3 & 0x000140) {
v4l2_dbg(1, debug, sd, "DUAL!!!\n");
*dual_flag = 1;
}
}
/* regs write to set audio mode */
static void set_audio_mode(struct v4l2_subdev *sd, int audio_mode)
{
v4l2_dbg(1, debug, sd, "writing registers to set audio mode by set %d\n",
audio_mode);
saa717x_write(sd, 0x46c, reg_set_audio_template[audio_mode][0]);
saa717x_write(sd, 0x470, reg_set_audio_template[audio_mode][1]);
}
/* write regs to video output level (bright,contrast,hue,sat) */
static void set_video_output_level_regs(struct v4l2_subdev *sd,
struct saa717x_state *decoder)
{
/* brightness ffh (bright) - 80h (ITU level) - 00h (dark) */
saa717x_write(sd, 0x10a, decoder->bright);
/* contrast 7fh (max: 1.984) - 44h (ITU) - 40h (1.0) -
0h (luminance off) 40: i2c dump
c0h (-1.0 inverse chrominance)
80h (-2.0 inverse chrominance) */
saa717x_write(sd, 0x10b, decoder->contrast);
/* saturation? 7fh(max)-40h(ITU)-0h(color off)
c0h (-1.0 inverse chrominance)
80h (-2.0 inverse chrominance) */
saa717x_write(sd, 0x10c, decoder->sat);
/* color hue (phase) control
7fh (+178.6) - 0h (0 normal) - 80h (-180.0) */
saa717x_write(sd, 0x10d, decoder->hue);
}
/* write regs to set audio volume, bass and treble */
static int set_audio_regs(struct v4l2_subdev *sd,
struct saa717x_state *decoder)
{
u8 mute = 0xac; /* -84 dB */
u32 val;
unsigned int work_l, work_r;
/* set SIF analog I/O select */
saa717x_write(sd, 0x0594, decoder->audio_input);
v4l2_dbg(1, debug, sd, "set audio input %d\n",
decoder->audio_input);
/* normalize ( 65535 to 0 -> 24 to -40 (not -84)) */
work_l = (min(65536 - decoder->audio_main_balance, 32768) * decoder->audio_main_volume) / 32768;
work_r = (min(decoder->audio_main_balance, (u16)32768) * decoder->audio_main_volume) / 32768;
decoder->audio_main_vol_l = (long)work_l * (24 - (-40)) / 65535 - 40;
decoder->audio_main_vol_r = (long)work_r * (24 - (-40)) / 65535 - 40;
/* set main volume */
/* main volume L[7-0],R[7-0],0x00 24=24dB,-83dB, -84(mute) */
/* def:0dB->6dB(MPG600GR) */
/* if mute is on, set mute */
if (decoder->audio_main_mute) {
val = mute | (mute << 8);
} else {
val = (u8)decoder->audio_main_vol_l |
((u8)decoder->audio_main_vol_r << 8);
}
saa717x_write(sd, 0x480, val);
/* bass and treble; go to another function */
/* set bass and treble */
val = decoder->audio_main_bass | (decoder->audio_main_treble << 8);
saa717x_write(sd, 0x488, val);
return 0;
}
/********** scaling staff ***********/
static void set_h_prescale(struct v4l2_subdev *sd,
int task, int prescale)
{
static const struct {
int xpsc;
int xacl;
int xc2_1;
int xdcg;
int vpfy;
} vals[] = {
/* XPSC XACL XC2_1 XDCG VPFY */
{ 1, 0, 0, 0, 0 },
{ 2, 2, 1, 2, 2 },
{ 3, 4, 1, 3, 2 },
{ 4, 8, 1, 4, 2 },
{ 5, 8, 1, 4, 2 },
{ 6, 8, 1, 4, 3 },
{ 7, 8, 1, 4, 3 },
{ 8, 15, 0, 4, 3 },
{ 9, 15, 0, 4, 3 },
{ 10, 16, 1, 5, 3 },
};
static const int count = ARRAY_SIZE(vals);
int i, task_shift;
task_shift = task * 0x40;
for (i = 0; i < count; i++)
if (vals[i].xpsc == prescale)
break;
if (i == count)
return;
/* horizonal prescaling */
saa717x_write(sd, 0x60 + task_shift, vals[i].xpsc);
/* accumulation length */
saa717x_write(sd, 0x61 + task_shift, vals[i].xacl);
/* level control */
saa717x_write(sd, 0x62 + task_shift,
(vals[i].xc2_1 << 3) | vals[i].xdcg);
/*FIR prefilter control */
saa717x_write(sd, 0x63 + task_shift,
(vals[i].vpfy << 2) | vals[i].vpfy);
}
/********** scaling staff ***********/
static void set_v_scale(struct v4l2_subdev *sd, int task, int yscale)
{
int task_shift;
task_shift = task * 0x40;
/* Vertical scaling ratio (LOW) */
saa717x_write(sd, 0x70 + task_shift, yscale & 0xff);
/* Vertical scaling ratio (HI) */
saa717x_write(sd, 0x71 + task_shift, yscale >> 8);
}
static int saa717x_s_ctrl(struct v4l2_subdev *sd, struct v4l2_control *ctrl)
{
struct saa717x_state *state = to_state(sd);
switch (ctrl->id) {
case V4L2_CID_BRIGHTNESS:
if (ctrl->value < 0 || ctrl->value > 255) {
v4l2_err(sd, "invalid brightness setting %d\n", ctrl->value);
return -ERANGE;
}
state->bright = ctrl->value;
v4l2_dbg(1, debug, sd, "bright:%d\n", state->bright);
saa717x_write(sd, 0x10a, state->bright);
break;
case V4L2_CID_CONTRAST:
if (ctrl->value < 0 || ctrl->value > 127) {
v4l2_err(sd, "invalid contrast setting %d\n", ctrl->value);
return -ERANGE;
}
state->contrast = ctrl->value;
v4l2_dbg(1, debug, sd, "contrast:%d\n", state->contrast);
saa717x_write(sd, 0x10b, state->contrast);
break;
case V4L2_CID_SATURATION:
if (ctrl->value < 0 || ctrl->value > 127) {
v4l2_err(sd, "invalid saturation setting %d\n", ctrl->value);
return -ERANGE;
}
state->sat = ctrl->value;
v4l2_dbg(1, debug, sd, "sat:%d\n", state->sat);
saa717x_write(sd, 0x10c, state->sat);
break;
case V4L2_CID_HUE:
if (ctrl->value < -128 || ctrl->value > 127) {
v4l2_err(sd, "invalid hue setting %d\n", ctrl->value);
return -ERANGE;
}
state->hue = ctrl->value;
v4l2_dbg(1, debug, sd, "hue:%d\n", state->hue);
saa717x_write(sd, 0x10d, state->hue);
break;
case V4L2_CID_AUDIO_MUTE:
state->audio_main_mute = ctrl->value;
set_audio_regs(sd, state);
break;
case V4L2_CID_AUDIO_VOLUME:
state->audio_main_volume = ctrl->value;
set_audio_regs(sd, state);
break;
case V4L2_CID_AUDIO_BALANCE:
state->audio_main_balance = ctrl->value;
set_audio_regs(sd, state);
break;
case V4L2_CID_AUDIO_TREBLE:
state->audio_main_treble = ctrl->value;
set_audio_regs(sd, state);
break;
case V4L2_CID_AUDIO_BASS:
state->audio_main_bass = ctrl->value;
set_audio_regs(sd, state);
break;
default:
return -EINVAL;
}
return 0;
}
static int saa717x_g_ctrl(struct v4l2_subdev *sd, struct v4l2_control *ctrl)
{
struct saa717x_state *state = to_state(sd);
switch (ctrl->id) {
case V4L2_CID_BRIGHTNESS:
ctrl->value = state->bright;
break;
case V4L2_CID_CONTRAST:
ctrl->value = state->contrast;
break;
case V4L2_CID_SATURATION:
ctrl->value = state->sat;
break;
case V4L2_CID_HUE:
ctrl->value = state->hue;
break;
case V4L2_CID_AUDIO_MUTE:
ctrl->value = state->audio_main_mute;
break;
case V4L2_CID_AUDIO_VOLUME:
ctrl->value = state->audio_main_volume;
break;
case V4L2_CID_AUDIO_BALANCE:
ctrl->value = state->audio_main_balance;
break;
case V4L2_CID_AUDIO_TREBLE:
ctrl->value = state->audio_main_treble;
break;
case V4L2_CID_AUDIO_BASS:
ctrl->value = state->audio_main_bass;
break;
default:
return -EINVAL;
}
return 0;
}
static struct v4l2_queryctrl saa717x_qctrl[] = {
{
.id = V4L2_CID_BRIGHTNESS,
.type = V4L2_CTRL_TYPE_INTEGER,
.name = "Brightness",
.minimum = 0,
.maximum = 255,
.step = 1,
.default_value = 128,
.flags = 0,
}, {
.id = V4L2_CID_CONTRAST,
.type = V4L2_CTRL_TYPE_INTEGER,
.name = "Contrast",
.minimum = 0,
.maximum = 255,
.step = 1,
.default_value = 64,
.flags = 0,
}, {
.id = V4L2_CID_SATURATION,
.type = V4L2_CTRL_TYPE_INTEGER,
.name = "Saturation",
.minimum = 0,
.maximum = 255,
.step = 1,
.default_value = 64,
.flags = 0,
}, {
.id = V4L2_CID_HUE,
.type = V4L2_CTRL_TYPE_INTEGER,
.name = "Hue",
.minimum = -128,
.maximum = 127,
.step = 1,
.default_value = 0,
.flags = 0,
}, {
.id = V4L2_CID_AUDIO_VOLUME,
.type = V4L2_CTRL_TYPE_INTEGER,
.name = "Volume",
.minimum = 0,
.maximum = 65535,
.step = 65535 / 100,
.default_value = 58880,
.flags = 0,
}, {
.id = V4L2_CID_AUDIO_BALANCE,
.type = V4L2_CTRL_TYPE_INTEGER,
.name = "Balance",
.minimum = 0,
.maximum = 65535,
.step = 65535 / 100,
.default_value = 32768,
.flags = 0,
}, {
.id = V4L2_CID_AUDIO_MUTE,
.type = V4L2_CTRL_TYPE_BOOLEAN,
.name = "Mute",
.minimum = 0,
.maximum = 1,
.step = 1,
.default_value = 1,
.flags = 0,
}, {
.id = V4L2_CID_AUDIO_BASS,
.type = V4L2_CTRL_TYPE_INTEGER,
.name = "Bass",
.minimum = 0,
.maximum = 65535,
.step = 65535 / 100,
.default_value = 32768,
}, {
.id = V4L2_CID_AUDIO_TREBLE,
.type = V4L2_CTRL_TYPE_INTEGER,
.name = "Treble",
.minimum = 0,
.maximum = 65535,
.step = 65535 / 100,
.default_value = 32768,
},
};
static int saa717x_s_video_routing(struct v4l2_subdev *sd,
u32 input, u32 output, u32 config)
{
struct saa717x_state *decoder = to_state(sd);
int is_tuner = input & 0x80; /* tuner input flag */
input &= 0x7f;
v4l2_dbg(1, debug, sd, "decoder set input (%d)\n", input);
/* inputs from 0-9 are available*/
/* saa717x have mode0-mode9 but mode5 is reserved. */
if (input < 0 || input > 9 || input == 5)
return -EINVAL;
if (decoder->input != input) {
int input_line = input;
decoder->input = input_line;
v4l2_dbg(1, debug, sd, "now setting %s input %d\n",
input_line >= 6 ? "S-Video" : "Composite",
input_line);
/* select mode */
saa717x_write(sd, 0x102,
(saa717x_read(sd, 0x102) & 0xf0) |
input_line);
/* bypass chrominance trap for modes 6..9 */
saa717x_write(sd, 0x109,
(saa717x_read(sd, 0x109) & 0x7f) |
(input_line < 6 ? 0x0 : 0x80));
/* change audio_mode */
if (is_tuner) {
/* tuner */
set_audio_mode(sd, decoder->tuner_audio_mode);
} else {
/* Force to STEREO mode if Composite or
* S-Video were chosen */
set_audio_mode(sd, TUNER_AUDIO_STEREO);
}
/* change initialize procedure (Composite/S-Video) */
if (is_tuner)
saa717x_write_regs(sd, reg_init_tuner_input);
else if (input_line >= 6)
saa717x_write_regs(sd, reg_init_svideo_input);
else
saa717x_write_regs(sd, reg_init_composite_input);
}
return 0;
}
static int saa717x_queryctrl(struct v4l2_subdev *sd, struct v4l2_queryctrl *qc)
{
int i;
for (i = 0; i < ARRAY_SIZE(saa717x_qctrl); i++)
if (qc->id && qc->id == saa717x_qctrl[i].id) {
memcpy(qc, &saa717x_qctrl[i], sizeof(*qc));
return 0;
}
return -EINVAL;
}
#ifdef CONFIG_VIDEO_ADV_DEBUG
static int saa717x_g_register(struct v4l2_subdev *sd, struct v4l2_dbg_register *reg)
{
struct i2c_client *client = v4l2_get_subdevdata(sd);
if (!v4l2_chip_match_i2c_client(client, &reg->match))
return -EINVAL;
if (!capable(CAP_SYS_ADMIN))
return -EPERM;
reg->val = saa717x_read(sd, reg->reg);
reg->size = 1;
return 0;
}
static int saa717x_s_register(struct v4l2_subdev *sd, struct v4l2_dbg_register *reg)
{
struct i2c_client *client = v4l2_get_subdevdata(sd);
u16 addr = reg->reg & 0xffff;
u8 val = reg->val & 0xff;
if (!v4l2_chip_match_i2c_client(client, &reg->match))
return -EINVAL;
if (!capable(CAP_SYS_ADMIN))
return -EPERM;
saa717x_write(sd, addr, val);
return 0;
}
#endif
static int saa717x_s_fmt(struct v4l2_subdev *sd, struct v4l2_format *fmt)
{
struct v4l2_pix_format *pix;
int prescale, h_scale, v_scale;
pix = &fmt->fmt.pix;
v4l2_dbg(1, debug, sd, "decoder set size\n");
/* FIXME need better bounds checking here */
if (pix->width < 1 || pix->width > 1440)
return -EINVAL;
if (pix->height < 1 || pix->height > 960)
return -EINVAL;
/* scaling setting */
/* NTSC and interlace only */
prescale = SAA717X_NTSC_WIDTH / pix->width;
if (prescale == 0)
prescale = 1;
h_scale = 1024 * SAA717X_NTSC_WIDTH / prescale / pix->width;
/* interlace */
v_scale = 512 * 2 * SAA717X_NTSC_HEIGHT / pix->height;
/* Horizontal prescaling etc */
set_h_prescale(sd, 0, prescale);
set_h_prescale(sd, 1, prescale);
/* Horizontal scaling increment */
/* TASK A */
saa717x_write(sd, 0x6C, (u8)(h_scale & 0xFF));
saa717x_write(sd, 0x6D, (u8)((h_scale >> 8) & 0xFF));
/* TASK B */
saa717x_write(sd, 0xAC, (u8)(h_scale & 0xFF));
saa717x_write(sd, 0xAD, (u8)((h_scale >> 8) & 0xFF));
/* Vertical prescaling etc */
set_v_scale(sd, 0, v_scale);
set_v_scale(sd, 1, v_scale);
/* set video output size */
/* video number of pixels at output */
/* TASK A */
saa717x_write(sd, 0x5C, (u8)(pix->width & 0xFF));
saa717x_write(sd, 0x5D, (u8)((pix->width >> 8) & 0xFF));
/* TASK B */
saa717x_write(sd, 0x9C, (u8)(pix->width & 0xFF));
saa717x_write(sd, 0x9D, (u8)((pix->width >> 8) & 0xFF));
/* video number of lines at output */
/* TASK A */
saa717x_write(sd, 0x5E, (u8)(pix->height & 0xFF));
saa717x_write(sd, 0x5F, (u8)((pix->height >> 8) & 0xFF));
/* TASK B */
saa717x_write(sd, 0x9E, (u8)(pix->height & 0xFF));
saa717x_write(sd, 0x9F, (u8)((pix->height >> 8) & 0xFF));
return 0;
}
static int saa717x_s_radio(struct v4l2_subdev *sd)
{
struct saa717x_state *decoder = to_state(sd);
decoder->radio = 1;
return 0;
}
static int saa717x_s_std(struct v4l2_subdev *sd, v4l2_std_id std)
{
struct saa717x_state *decoder = to_state(sd);
v4l2_dbg(1, debug, sd, "decoder set norm ");
v4l2_dbg(1, debug, sd, "(not yet implementd)\n");
decoder->radio = 0;
decoder->std = std;
return 0;
}
static int saa717x_s_audio_routing(struct v4l2_subdev *sd,
u32 input, u32 output, u32 config)
{
struct saa717x_state *decoder = to_state(sd);
if (input < 3) { /* FIXME! --tadachi */
decoder->audio_input = input;
v4l2_dbg(1, debug, sd,
"set decoder audio input to %d\n",
decoder->audio_input);
set_audio_regs(sd, decoder);
return 0;
}
return -ERANGE;
}
static int saa717x_s_stream(struct v4l2_subdev *sd, int enable)
{
struct saa717x_state *decoder = to_state(sd);
v4l2_dbg(1, debug, sd, "decoder %s output\n",
enable ? "enable" : "disable");
decoder->enable = enable;
saa717x_write(sd, 0x193, enable ? 0xa6 : 0x26);
return 0;
}
/* change audio mode */
static int saa717x_s_tuner(struct v4l2_subdev *sd, struct v4l2_tuner *vt)
{
struct saa717x_state *decoder = to_state(sd);
int audio_mode;
char *mes[4] = {
"MONO", "STEREO", "LANG1", "LANG2/SAP"
};
audio_mode = V4L2_TUNER_MODE_STEREO;
switch (vt->audmode) {
case V4L2_TUNER_MODE_MONO:
audio_mode = TUNER_AUDIO_MONO;
break;
case V4L2_TUNER_MODE_STEREO:
audio_mode = TUNER_AUDIO_STEREO;
break;
case V4L2_TUNER_MODE_LANG2:
audio_mode = TUNER_AUDIO_LANG2;
break;
case V4L2_TUNER_MODE_LANG1:
audio_mode = TUNER_AUDIO_LANG1;
break;
}
v4l2_dbg(1, debug, sd, "change audio mode to %s\n",
mes[audio_mode]);
decoder->tuner_audio_mode = audio_mode;
/* The registers are not changed here. */
/* See DECODER_ENABLE_OUTPUT section. */
set_audio_mode(sd, decoder->tuner_audio_mode);
return 0;
}
static int saa717x_g_tuner(struct v4l2_subdev *sd, struct v4l2_tuner *vt)
{
struct saa717x_state *decoder = to_state(sd);
int dual_f, stereo_f;
if (decoder->radio)
return 0;
get_inf_dev_status(sd, &dual_f, &stereo_f);
v4l2_dbg(1, debug, sd, "DETECT==st:%d dual:%d\n",
stereo_f, dual_f);
/* mono */
if ((dual_f == 0) && (stereo_f == 0)) {
vt->rxsubchans = V4L2_TUNER_SUB_MONO;
v4l2_dbg(1, debug, sd, "DETECT==MONO\n");
}
/* stereo */
if (stereo_f == 1) {
if (vt->audmode == V4L2_TUNER_MODE_STEREO ||
vt->audmode == V4L2_TUNER_MODE_LANG1) {
vt->rxsubchans = V4L2_TUNER_SUB_STEREO;
v4l2_dbg(1, debug, sd, "DETECT==ST(ST)\n");
} else {
vt->rxsubchans = V4L2_TUNER_SUB_MONO;
v4l2_dbg(1, debug, sd, "DETECT==ST(MONO)\n");
}
}
/* dual */
if (dual_f == 1) {
if (vt->audmode == V4L2_TUNER_MODE_LANG2) {
vt->rxsubchans = V4L2_TUNER_SUB_LANG2 | V4L2_TUNER_SUB_MONO;
v4l2_dbg(1, debug, sd, "DETECT==DUAL1\n");
} else {
vt->rxsubchans = V4L2_TUNER_SUB_LANG1 | V4L2_TUNER_SUB_MONO;
v4l2_dbg(1, debug, sd, "DETECT==DUAL2\n");
}
}
return 0;
}
/* ----------------------------------------------------------------------- */
static const struct v4l2_subdev_core_ops saa717x_core_ops = {
#ifdef CONFIG_VIDEO_ADV_DEBUG
.g_register = saa717x_g_register,
.s_register = saa717x_s_register,
#endif
.queryctrl = saa717x_queryctrl,
.g_ctrl = saa717x_g_ctrl,
.s_ctrl = saa717x_s_ctrl,
.s_std = saa717x_s_std,
};
static const struct v4l2_subdev_tuner_ops saa717x_tuner_ops = {
.g_tuner = saa717x_g_tuner,
.s_tuner = saa717x_s_tuner,
.s_radio = saa717x_s_radio,
};
static const struct v4l2_subdev_video_ops saa717x_video_ops = {
.s_routing = saa717x_s_video_routing,
.s_fmt = saa717x_s_fmt,
.s_stream = saa717x_s_stream,
};
static const struct v4l2_subdev_audio_ops saa717x_audio_ops = {
.s_routing = saa717x_s_audio_routing,
};
static const struct v4l2_subdev_ops saa717x_ops = {
.core = &saa717x_core_ops,
.tuner = &saa717x_tuner_ops,
.audio = &saa717x_audio_ops,
.video = &saa717x_video_ops,
};
/* ----------------------------------------------------------------------- */
/* i2c implementation */
/* ----------------------------------------------------------------------- */
static int saa717x_probe(struct i2c_client *client,
const struct i2c_device_id *did)
{
struct saa717x_state *decoder;
struct v4l2_subdev *sd;
u8 id = 0;
char *p = "";
/* Check if the adapter supports the needed features */
if (!i2c_check_functionality(client->adapter, I2C_FUNC_SMBUS_BYTE_DATA))
return -EIO;
decoder = kzalloc(sizeof(struct saa717x_state), GFP_KERNEL);
if (decoder == NULL)
return -ENOMEM;
sd = &decoder->sd;
v4l2_i2c_subdev_init(sd, client, &saa717x_ops);
if (saa717x_write(sd, 0x5a4, 0xfe) &&
saa717x_write(sd, 0x5a5, 0x0f) &&
saa717x_write(sd, 0x5a6, 0x00) &&
saa717x_write(sd, 0x5a7, 0x01))
id = saa717x_read(sd, 0x5a0);
if (id != 0xc2 && id != 0x32 && id != 0xf2 && id != 0x6c) {
v4l2_dbg(1, debug, sd, "saa717x not found (id=%02x)\n", id);
kfree(decoder);
return -ENODEV;
}
if (id == 0xc2)
p = "saa7173";
else if (id == 0x32)
p = "saa7174A";
else if (id == 0x6c)
p = "saa7174HL";
else
p = "saa7171";
v4l2_info(sd, "%s found @ 0x%x (%s)\n", p,
client->addr << 1, client->adapter->name);
decoder->std = V4L2_STD_NTSC;
decoder->input = -1;
decoder->enable = 1;
/* tune these parameters */
decoder->bright = 0x80;
decoder->contrast = 0x44;
decoder->sat = 0x40;
decoder->hue = 0x00;
/* FIXME!! */
decoder->playback = 0; /* initially capture mode used */
decoder->audio = 1; /* DECODER_AUDIO_48_KHZ */
decoder->audio_input = 2; /* FIXME!! */
decoder->tuner_audio_mode = TUNER_AUDIO_STEREO;
/* set volume, bass and treble */
decoder->audio_main_vol_l = 6;
decoder->audio_main_vol_r = 6;
decoder->audio_main_bass = 0;
decoder->audio_main_treble = 0;
decoder->audio_main_mute = 0;
decoder->audio_main_balance = 32768;
/* normalize (24 to -40 (not -84) -> 65535 to 0) */
decoder->audio_main_volume =
(decoder->audio_main_vol_r + 41) * 65535 / (24 - (-40));
v4l2_dbg(1, debug, sd, "writing init values\n");
/* FIXME!! */
saa717x_write_regs(sd, reg_init_initialize);
set_video_output_level_regs(sd, decoder);
/* set bass,treble to 0db 20041101 K.Ohta */
decoder->audio_main_bass = 0;
decoder->audio_main_treble = 0;
set_audio_regs(sd, decoder);
set_current_state(TASK_INTERRUPTIBLE);
schedule_timeout(2*HZ);
return 0;
}
static int saa717x_remove(struct i2c_client *client)
{
struct v4l2_subdev *sd = i2c_get_clientdata(client);
v4l2_device_unregister_subdev(sd);
kfree(to_state(sd));
return 0;
}
/* ----------------------------------------------------------------------- */
static const struct i2c_device_id saa717x_id[] = {
{ "saa717x", 0 },
{ }
};
MODULE_DEVICE_TABLE(i2c, saa717x_id);
static struct v4l2_i2c_driver_data v4l2_i2c_data = {
.name = "saa717x",
.probe = saa717x_probe,
.remove = saa717x_remove,
.id_table = saa717x_id,
};
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