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V4L/DVB (9364): adding sharp s921 ISDB-T driver
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s921_module.c:
    wrapper for the dvb frontend interface
    s921_core.c:
    core s921 1seg ISDB-T driver, everything is set to auto as much as possible
    in order to not require certain parameters which currently cannot be passed
    to the ISDB-T chip.

    ISDB-T support can be tested using dvbscan, dvbstream/snoop and mplayer
    Tested 1seg H264/aac stream with this driver using a custom linux
ISDB-T player

Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
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Markus Rechberger authored and Mauro Carvalho Chehab committed Dec 29, 2008
1 parent 2c5aacc commit aa56cb9
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3 changes: 3 additions & 0 deletions drivers/media/video/empia/sharp/Makefile
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s921-objs := s921_module.o s921_core.o

obj-m += s921.o
215 changes: 215 additions & 0 deletions drivers/media/video/empia/sharp/s921_core.c
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/*
* Driver for Sharp s921 driver
*
* Copyright (C) 2008 Markus Rechberger <mrechberger@sundtek.de>
*
*/


#include <linux/kernel.h>
#include <linux/module.h>
#include "s921_core.h"

static int s921_isdb_init(struct s921_isdb_t *dev);
static int s921_isdb_set_parameters(struct s921_isdb_t *dev, struct s921_isdb_t_transmission_mode_params *params);
static int s921_isdb_tune(struct s921_isdb_t *dev, struct s921_isdb_t_tune_params *params);
static int s921_isdb_get_status(struct s921_isdb_t *dev, void *data);

static u8 init_table[]={ 0x01, 0x40, 0x02, 0x00, 0x03, 0x40, 0x04, 0x01,
0x05, 0x00, 0x06, 0x00, 0x07, 0x00, 0x08, 0x00,
0x09, 0x00, 0x0a, 0x00, 0x0b, 0x5a, 0x0c, 0x00,
0x0d, 0x00, 0x0f, 0x00, 0x13, 0x1b, 0x14, 0x80,
0x15, 0x40, 0x17, 0x70, 0x18, 0x01, 0x19, 0x12,
0x1a, 0x01, 0x1b, 0x12, 0x1c, 0xa0, 0x1d, 0x00,
0x1e, 0x0a, 0x1f, 0x08, 0x20, 0x40, 0x21, 0xff,
0x22, 0x4c, 0x23, 0x4e, 0x24, 0x4c, 0x25, 0x00,
0x26, 0x00, 0x27, 0xf4, 0x28, 0x60, 0x29, 0x88,
0x2a, 0x40, 0x2b, 0x40, 0x2c, 0xff, 0x2d, 0x00,
0x2e, 0xff, 0x2f, 0x00, 0x30, 0x20, 0x31, 0x06,
0x32, 0x0c, 0x34, 0x0f, 0x37, 0xfe, 0x38, 0x00,
0x39, 0x63, 0x3a, 0x10, 0x3b, 0x10, 0x47, 0x00,
0x49, 0xe5, 0x4b, 0x00, 0x50, 0xc0, 0x52, 0x20,
0x54, 0x5a, 0x55, 0x5b, 0x56, 0x40, 0x57, 0x70,
0x5c, 0x50, 0x5d, 0x00, 0x62, 0x17, 0x63, 0x2f,
0x64, 0x6f, 0x68, 0x00, 0x69, 0x89, 0x6a, 0x00,
0x6b, 0x00, 0x6c, 0x00, 0x6d, 0x00, 0x6e, 0x00,
0x70, 0x00, 0x71, 0x00, 0x75, 0x00, 0x76, 0x30,
0x77, 0x01, 0xaf, 0x00, 0xb0, 0xa0, 0xb2, 0x3d,
0xb3, 0x25, 0xb4, 0x8b, 0xb5, 0x4b, 0xb6, 0x3f,
0xb7, 0xff, 0xb8, 0xff, 0xb9, 0xfc, 0xba, 0x00,
0xbb, 0x00, 0xbc, 0x00, 0xd0, 0x30, 0xe4, 0x84,
0xf0, 0x48, 0xf1, 0x19, 0xf2, 0x5a, 0xf3, 0x8e,
0xf4, 0x2d, 0xf5, 0x07, 0xf6, 0x5a, 0xf7, 0xba,
0xf8, 0xd7 };

static u8 c_table[]={ 0x58, 0x8a, 0x7b, 0x59, 0x8c, 0x7b, 0x5a, 0x8e, 0x5b,
0x5b, 0x90, 0x5b, 0x5c, 0x92, 0x5b, 0x5d, 0x94, 0x5b,
0x5e, 0x96, 0x5b, 0x5f, 0x98, 0x3b, 0x60, 0x9a, 0x3b,
0x61, 0x9c, 0x3b, 0x62, 0x9e, 0x3b, 0x63, 0xa0, 0x3b,
0x64, 0xa2, 0x1b, 0x65, 0xa4, 0x1b, 0x66, 0xa6, 0x1b,
0x67, 0xa8, 0x1b, 0x68, 0xaa, 0x1b, 0x69, 0xac, 0x1b,
0x6a, 0xae, 0x1b, 0x6b, 0xb0, 0x1b, 0x6c, 0xb2, 0x1b,
0x6d, 0xb4, 0xfb, 0x6e, 0xb6, 0xfb, 0x6f, 0xb8, 0xfb,
0x70, 0xba, 0xfb, 0x71, 0xbc, 0xdb, 0x72, 0xbe, 0xdb,
0x73, 0xc0, 0xdb, 0x74, 0xc2, 0xdb, 0x75, 0xc4, 0xdb,
0x76, 0xc6, 0xdb, 0x77, 0xc8, 0xbb, 0x78, 0xca, 0xbb,
0x79, 0xcc, 0xbb, 0x7a, 0xce, 0xbb, 0x7b, 0xd0, 0xbb,
0x7c, 0xd2, 0xbb, 0x7d, 0xd4, 0xbb, 0x7e, 0xd6, 0xbb,
0x7f, 0xd8, 0xbb, 0x80, 0xda, 0x9b, 0x81, 0xdc, 0x9b,
0x82, 0xde, 0x9b, 0x83, 0xe0, 0x9b, 0x84, 0xe2, 0x9b,
0x85, 0xe4, 0x9b, 0x86, 0xe6, 0x9b, 0x87, 0xe8, 0x9b,
0x88, 0xea, 0x9b, 0x89, 0xec, 0x9b };

int s921_isdb_cmd(struct s921_isdb_t *dev, u32 cmd, void *data) {
switch(cmd) {
case ISDB_T_CMD_INIT:
s921_isdb_init(dev);
break;
case ISDB_T_CMD_SET_PARAM:
s921_isdb_set_parameters(dev, data);
break;
case ISDB_T_CMD_TUNE:
s921_isdb_tune(dev, data);
break;
case ISDB_T_CMD_GET_STATUS:
s921_isdb_get_status(dev, data);
break;
default:
printk("unhandled command\n");
return -EINVAL;
}
return 0;
}

static int s921_isdb_init(struct s921_isdb_t *dev) {
unsigned int i;
unsigned int ret;
printk("isdb_init\n");
for (i = 0; i < sizeof(init_table); i+=2) {
ret = dev->i2c_write(dev->priv_dev, init_table[i], init_table[i+1]);
if (ret != 0) {
printk("i2c write failed\n");
return ret;
}
}
return 0;
}

static int s921_isdb_set_parameters(struct s921_isdb_t *dev, struct s921_isdb_t_transmission_mode_params *params) {

int ret;
/* auto is sufficient for now, lateron this should be reflected in an extra interface */



ret = dev->i2c_write(dev->priv_dev, 0xb0, 0xa0); //mod_b2);
ret = dev->i2c_write(dev->priv_dev, 0xb2, 0x3d); //mod_b2);

if (ret < 0)
return -EINVAL;

ret = dev->i2c_write(dev->priv_dev, 0xb3, 0x25); //mod_b3);
if (ret < 0)
return -EINVAL;

ret = dev->i2c_write(dev->priv_dev, 0xb4, 0x8b); //mod_b4);
if (ret < 0)
return -EINVAL;

ret = dev->i2c_write(dev->priv_dev, 0xb5, 0x4b); //mod_b5);
if (ret < 0)
return -EINVAL;

ret = dev->i2c_write(dev->priv_dev, 0xb6, 0x3f); //mod_b6);
if (ret < 0)
return -EINVAL;

ret = dev->i2c_write(dev->priv_dev, 0xb7, 0x3f); //mod_b7);
if (ret < 0)
return -EINVAL;

return E_OK;
}

static int s921_isdb_tune(struct s921_isdb_t *dev, struct s921_isdb_t_tune_params *params) {

int ret;
int index;

index = (params->frequency - 473143000)/6000000;

if (index > 48) {
return -EINVAL;
}

dev->i2c_write(dev->priv_dev, 0x47, 0x60);

ret = dev->i2c_write(dev->priv_dev, 0x68, 0x00);
if (ret < 0)
return -EINVAL;

ret = dev->i2c_write(dev->priv_dev, 0x69, 0x89);
if (ret < 0)
return -EINVAL;

ret = dev->i2c_write(dev->priv_dev, 0xf0, 0x48);
if (ret < 0)
return -EINVAL;

ret = dev->i2c_write(dev->priv_dev, 0xf1, 0x19);
if (ret < 0)
return -EINVAL;

ret = dev->i2c_write(dev->priv_dev, 0xf2, c_table[index*3]);
if (ret < 0)
return -EINVAL;

ret = dev->i2c_write(dev->priv_dev, 0xf3, c_table[index*3+1]);
if (ret < 0)
return -EINVAL;

ret = dev->i2c_write(dev->priv_dev, 0xf4, c_table[index*3+2]);
if (ret < 0)
return -EINVAL;

ret = dev->i2c_write(dev->priv_dev, 0xf5, 0xae);
if (ret < 0)
return -EINVAL;

ret = dev->i2c_write(dev->priv_dev, 0xf6, 0xb7);
if (ret < 0)
return -EINVAL;

ret = dev->i2c_write(dev->priv_dev, 0xf7, 0xba);
if (ret < 0)
return -EINVAL;

ret = dev->i2c_write(dev->priv_dev, 0xf8, 0xd7);
if (ret < 0)
return -EINVAL;

ret = dev->i2c_write(dev->priv_dev, 0x68, 0x0a);
if (ret < 0)
return -EINVAL;

ret = dev->i2c_write(dev->priv_dev, 0x69, 0x09);
if (ret < 0)
return -EINVAL;

dev->i2c_write(dev->priv_dev, 0x01, 0x40);
return 0;
}

static int s921_isdb_get_status(struct s921_isdb_t *dev, void *data) {
unsigned int *ret = (unsigned int*)data;
u8 ifagc_dt;
u8 rfagc_dt;

mdelay(10);
ifagc_dt = dev->i2c_read(dev->priv_dev, 0x81);
rfagc_dt = dev->i2c_read(dev->priv_dev, 0x82);
if (rfagc_dt == 0x40) {
*ret = 1;
}
return 0;
}
114 changes: 114 additions & 0 deletions drivers/media/video/empia/sharp/s921_core.h
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#ifndef _S921_CORE_H
#define _S921_CORE_H
//#define u8 unsigned int
//#define u32 unsigned int



//#define EINVAL -1
#define E_OK 0

struct s921_isdb_t {
void *priv_dev;
int (*i2c_write)(void *dev, u8 reg, u8 val);
int (*i2c_read)(void *dev, u8 reg);
};

#define ISDB_T_CMD_INIT 0
#define ISDB_T_CMD_SET_PARAM 1
#define ISDB_T_CMD_TUNE 2
#define ISDB_T_CMD_GET_STATUS 3

struct s921_isdb_t_tune_params {
u32 frequency;
};

struct s921_isdb_t_status {
};

struct s921_isdb_t_transmission_mode_params {
u8 mode;
u8 layer_a_mode;
#define ISDB_T_LA_MODE_1 0
#define ISDB_T_LA_MODE_2 1
#define ISDB_T_LA_MODE_3 2
u8 layer_a_carrier_modulation;
#define ISDB_T_LA_CM_DQPSK 0
#define ISDB_T_LA_CM_QPSK 1
#define ISDB_T_LA_CM_16QAM 2
#define ISDB_T_LA_CM_64QAM 3
#define ISDB_T_LA_CM_NOLAYER 4
u8 layer_a_code_rate;
#define ISDB_T_LA_CR_1_2 0
#define ISDB_T_LA_CR_2_3 1
#define ISDB_T_LA_CR_3_4 2
#define ISDB_T_LA_CR_5_6 4
#define ISDB_T_LA_CR_7_8 8
#define ISDB_T_LA_CR_NOLAYER 16
u8 layer_a_time_interleave;
#define ISDB_T_LA_TI_0 0
#define ISDB_T_LA_TI_1 1
#define ISDB_T_LA_TI_2 2
#define ISDB_T_LA_TI_4 4
#define ISDB_T_LA_TI_8 8
#define ISDB_T_LA_TI_16 16
#define ISDB_T_LA_TI_32 32
u8 layer_a_nseg;

u8 layer_b_mode;
#define ISDB_T_LB_MODE_1 0
#define ISDB_T_LB_MODE_2 1
#define ISDB_T_LB_MODE_3 2
u8 layer_b_carrier_modulation;
#define ISDB_T_LB_CM_DQPSK 0
#define ISDB_T_LB_CM_QPSK 1
#define ISDB_T_LB_CM_16QAM 2
#define ISDB_T_LB_CM_64QAM 3
#define ISDB_T_LB_CM_NOLAYER 4
u8 layer_b_code_rate;
#define ISDB_T_LB_CR_1_2 0
#define ISDB_T_LB_CR_2_3 1
#define ISDB_T_LB_CR_3_4 2
#define ISDB_T_LB_CR_5_6 4
#define ISDB_T_LB_CR_7_8 8
#define ISDB_T_LB_CR_NOLAYER 16
u8 layer_b_time_interleave;
#define ISDB_T_LB_TI_0 0
#define ISDB_T_LB_TI_1 1
#define ISDB_T_LB_TI_2 2
#define ISDB_T_LB_TI_4 4
#define ISDB_T_LB_TI_8 8
#define ISDB_T_LB_TI_16 16
#define ISDB_T_LB_TI_32 32
u8 layer_b_nseg;

u8 layer_c_mode;
#define ISDB_T_LC_MODE_1 0
#define ISDB_T_LC_MODE_2 1
#define ISDB_T_LC_MODE_3 2
u8 layer_c_carrier_modulation;
#define ISDB_T_LC_CM_DQPSK 0
#define ISDB_T_LC_CM_QPSK 1
#define ISDB_T_LC_CM_16QAM 2
#define ISDB_T_LC_CM_64QAM 3
#define ISDB_T_LC_CM_NOLAYER 4
u8 layer_c_code_rate;
#define ISDB_T_LC_CR_1_2 0
#define ISDB_T_LC_CR_2_3 1
#define ISDB_T_LC_CR_3_4 2
#define ISDB_T_LC_CR_5_6 4
#define ISDB_T_LC_CR_7_8 8
#define ISDB_T_LC_CR_NOLAYER 16
u8 layer_c_time_interleave;
#define ISDB_T_LC_TI_0 0
#define ISDB_T_LC_TI_1 1
#define ISDB_T_LC_TI_2 2
#define ISDB_T_LC_TI_4 4
#define ISDB_T_LC_TI_8 8
#define ISDB_T_LC_TI_16 16
#define ISDB_T_LC_TI_32 32
u8 layer_c_nseg;
};

int s921_isdb_cmd(struct s921_isdb_t *dev, u32 cmd, void *data);
#endif
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