LXR linux/drivers/media/dvb/frontends/s921

   1/*
   2 * Driver for Sharp s921 driver
   3 *
   4 * Copyright (C) 2008 Markus Rechberger <mrechberger@sundtek.de>
   5 *
   6 */
   7
   8
   9#include <linux/kernel.h>
  10#include <linux/module.h>
  11#include <linux/delay.h>
  12#include "s921_core.h"
  13
  14static int s921_isdb_init(struct s921_isdb_t *dev);
  15static int s921_isdb_set_parameters(struct s921_isdb_t *dev, struct s921_isdb_t_transmission_mode_params *params);
  16static int s921_isdb_tune(struct s921_isdb_t *dev, struct s921_isdb_t_tune_params *params);
  17static int s921_isdb_get_status(struct s921_isdb_t *dev, void *data);
  18
  19static u8 init_table[]={ 0x01, 0x40, 0x02, 0x00, 0x03, 0x40, 0x04, 0x01,
  20                         0x05, 0x00, 0x06, 0x00, 0x07, 0x00, 0x08, 0x00,
  21                         0x09, 0x00, 0x0a, 0x00, 0x0b, 0x5a, 0x0c, 0x00,
  22                         0x0d, 0x00, 0x0f, 0x00, 0x13, 0x1b, 0x14, 0x80,
  23                         0x15, 0x40, 0x17, 0x70, 0x18, 0x01, 0x19, 0x12,
  24                         0x1a, 0x01, 0x1b, 0x12, 0x1c, 0xa0, 0x1d, 0x00,
  25                         0x1e, 0x0a, 0x1f, 0x08, 0x20, 0x40, 0x21, 0xff,
  26                         0x22, 0x4c, 0x23, 0x4e, 0x24, 0x4c, 0x25, 0x00,
  27                         0x26, 0x00, 0x27, 0xf4, 0x28, 0x60, 0x29, 0x88,
  28                         0x2a, 0x40, 0x2b, 0x40, 0x2c, 0xff, 0x2d, 0x00,
  29                         0x2e, 0xff, 0x2f, 0x00, 0x30, 0x20, 0x31, 0x06,
  30                         0x32, 0x0c, 0x34, 0x0f, 0x37, 0xfe, 0x38, 0x00,
  31                         0x39, 0x63, 0x3a, 0x10, 0x3b, 0x10, 0x47, 0x00,
  32                         0x49, 0xe5, 0x4b, 0x00, 0x50, 0xc0, 0x52, 0x20,
  33                         0x54, 0x5a, 0x55, 0x5b, 0x56, 0x40, 0x57, 0x70,
  34                         0x5c, 0x50, 0x5d, 0x00, 0x62, 0x17, 0x63, 0x2f,
  35                         0x64, 0x6f, 0x68, 0x00, 0x69, 0x89, 0x6a, 0x00,
  36                         0x6b, 0x00, 0x6c, 0x00, 0x6d, 0x00, 0x6e, 0x00,
  37                         0x70, 0x00, 0x71, 0x00, 0x75, 0x00, 0x76, 0x30,
  38                         0x77, 0x01, 0xaf, 0x00, 0xb0, 0xa0, 0xb2, 0x3d,
  39                         0xb3, 0x25, 0xb4, 0x8b, 0xb5, 0x4b, 0xb6, 0x3f,
  40                         0xb7, 0xff, 0xb8, 0xff, 0xb9, 0xfc, 0xba, 0x00,
  41                         0xbb, 0x00, 0xbc, 0x00, 0xd0, 0x30, 0xe4, 0x84,
  42                         0xf0, 0x48, 0xf1, 0x19, 0xf2, 0x5a, 0xf3, 0x8e,
  43                         0xf4, 0x2d, 0xf5, 0x07, 0xf6, 0x5a, 0xf7, 0xba,
  44                         0xf8, 0xd7 };
  45
  46static u8 c_table[]={ 0x58, 0x8a, 0x7b, 0x59, 0x8c, 0x7b, 0x5a, 0x8e, 0x5b,
  47                      0x5b, 0x90, 0x5b, 0x5c, 0x92, 0x5b, 0x5d, 0x94, 0x5b,
  48                      0x5e, 0x96, 0x5b, 0x5f, 0x98, 0x3b, 0x60, 0x9a, 0x3b,
  49                      0x61, 0x9c, 0x3b, 0x62, 0x9e, 0x3b, 0x63, 0xa0, 0x3b,
  50                      0x64, 0xa2, 0x1b, 0x65, 0xa4, 0x1b, 0x66, 0xa6, 0x1b,
  51                      0x67, 0xa8, 0x1b, 0x68, 0xaa, 0x1b, 0x69, 0xac, 0x1b,
  52                      0x6a, 0xae, 0x1b, 0x6b, 0xb0, 0x1b, 0x6c, 0xb2, 0x1b,
  53                      0x6d, 0xb4, 0xfb, 0x6e, 0xb6, 0xfb, 0x6f, 0xb8, 0xfb,
  54                      0x70, 0xba, 0xfb, 0x71, 0xbc, 0xdb, 0x72, 0xbe, 0xdb,
  55                      0x73, 0xc0, 0xdb, 0x74, 0xc2, 0xdb, 0x75, 0xc4, 0xdb,
  56                      0x76, 0xc6, 0xdb, 0x77, 0xc8, 0xbb, 0x78, 0xca, 0xbb,
  57                      0x79, 0xcc, 0xbb, 0x7a, 0xce, 0xbb, 0x7b, 0xd0, 0xbb,
  58                      0x7c, 0xd2, 0xbb, 0x7d, 0xd4, 0xbb, 0x7e, 0xd6, 0xbb,
  59                      0x7f, 0xd8, 0xbb, 0x80, 0xda, 0x9b, 0x81, 0xdc, 0x9b,
  60                      0x82, 0xde, 0x9b, 0x83, 0xe0, 0x9b, 0x84, 0xe2, 0x9b,
  61                      0x85, 0xe4, 0x9b, 0x86, 0xe6, 0x9b, 0x87, 0xe8, 0x9b,
  62                      0x88, 0xea, 0x9b, 0x89, 0xec, 0x9b };
  63
  64int s921_isdb_cmd(struct s921_isdb_t *dev, u32 cmd, void *data) {
  65        switch(cmd) {
  66        case ISDB_T_CMD_INIT:
  67                s921_isdb_init(dev);
  68                break;
  69        case ISDB_T_CMD_SET_PARAM:
  70                s921_isdb_set_parameters(dev, data);
  71                break;
  72        case ISDB_T_CMD_TUNE:
  73                s921_isdb_tune(dev, data);
  74                break;
  75        case ISDB_T_CMD_GET_STATUS:
  76                s921_isdb_get_status(dev, data);
  77                break;
  78        default:
  79                printk("unhandled command\n");
  80                return -EINVAL;
  81        }
  82        return 0;
  83}
  84
  85static int s921_isdb_init(struct s921_isdb_t *dev) {
  86        unsigned int i;
  87        unsigned int ret;
  88        printk("isdb_init\n");
  89        for (i = 0; i < sizeof(init_table); i+=2) {
  90                ret = dev->i2c_write(dev->priv_dev, init_table[i], init_table[i+1]);
  91                if (ret != 0) {
  92                        printk("i2c write failed\n");
  93                        return ret;
  94                }
  95        }
  96        return 0;
  97}
  98
  99static int s921_isdb_set_parameters(struct s921_isdb_t *dev, struct s921_isdb_t_transmission_mode_params *params) {
 100
 101        int ret;
 102        /* auto is sufficient for now, lateron this should be reflected in an extra interface */
 103
 104
 105
 106        ret = dev->i2c_write(dev->priv_dev, 0xb0, 0xa0); //mod_b2);
 107        ret = dev->i2c_write(dev->priv_dev, 0xb2, 0x3d); //mod_b2);
 108
 109        if (ret < 0)
 110                return -EINVAL;
 111
 112        ret = dev->i2c_write(dev->priv_dev, 0xb3, 0x25); //mod_b3);
 113        if (ret < 0)
 114                return -EINVAL;
 115
 116        ret = dev->i2c_write(dev->priv_dev, 0xb4, 0x8b); //mod_b4);
 117        if (ret < 0)
 118                return -EINVAL;
 119
 120        ret = dev->i2c_write(dev->priv_dev, 0xb5, 0x4b); //mod_b5);
 121        if (ret < 0)
 122                return -EINVAL;
 123
 124        ret = dev->i2c_write(dev->priv_dev, 0xb6, 0x3f); //mod_b6);
 125        if (ret < 0)
 126                return -EINVAL;
 127
 128        ret = dev->i2c_write(dev->priv_dev, 0xb7, 0x3f); //mod_b7);
 129        if (ret < 0)
 130                return -EINVAL;
 131
 132        return E_OK;
 133}
 134
 135static int s921_isdb_tune(struct s921_isdb_t *dev, struct s921_isdb_t_tune_params *params) {
 136
 137        int ret;
 138        int index;
 139
 140        index = (params->frequency - 473143000)/6000000;
 141
 142        if (index > 48) {
 143                return -EINVAL;
 144        }
 145
 146        dev->i2c_write(dev->priv_dev, 0x47, 0x60);
 147
 148        ret = dev->i2c_write(dev->priv_dev, 0x68, 0x00);
 149        if (ret < 0)
 150                return -EINVAL;
 151
 152        ret = dev->i2c_write(dev->priv_dev, 0x69, 0x89);
 153        if (ret < 0)
 154                return -EINVAL;
 155
 156        ret = dev->i2c_write(dev->priv_dev, 0xf0, 0x48);
 157        if (ret < 0)
 158                return -EINVAL;
 159
 160        ret = dev->i2c_write(dev->priv_dev, 0xf1, 0x19);
 161        if (ret < 0)
 162                return -EINVAL;
 163
 164        ret = dev->i2c_write(dev->priv_dev, 0xf2, c_table[index*3]);
 165        if (ret < 0)
 166                return -EINVAL;
 167
 168        ret = dev->i2c_write(dev->priv_dev, 0xf3, c_table[index*3+1]);
 169        if (ret < 0)
 170                return -EINVAL;
 171
 172        ret = dev->i2c_write(dev->priv_dev, 0xf4, c_table[index*3+2]);
 173        if (ret < 0)
 174                return -EINVAL;
 175
 176        ret = dev->i2c_write(dev->priv_dev, 0xf5, 0xae);
 177        if (ret < 0)
 178                return -EINVAL;
 179
 180        ret = dev->i2c_write(dev->priv_dev, 0xf6, 0xb7);
 181        if (ret < 0)
 182                return -EINVAL;
 183
 184        ret = dev->i2c_write(dev->priv_dev, 0xf7, 0xba);
 185        if (ret < 0)
 186                return -EINVAL;
 187
 188        ret = dev->i2c_write(dev->priv_dev, 0xf8, 0xd7);
 189        if (ret < 0)
 190                return -EINVAL;
 191
 192        ret = dev->i2c_write(dev->priv_dev, 0x68, 0x0a);
 193        if (ret < 0)
 194                return -EINVAL;
 195
 196        ret = dev->i2c_write(dev->priv_dev, 0x69, 0x09);
 197        if (ret < 0)
 198                return -EINVAL;
 199
 200        dev->i2c_write(dev->priv_dev, 0x01, 0x40);
 201        return 0;
 202}
 203
 204static int s921_isdb_get_status(struct s921_isdb_t *dev, void *data) {
 205        unsigned int *ret = (unsigned int*)data;
 206        u8 ifagc_dt;
 207        u8 rfagc_dt;
 208
 209        mdelay(10);
 210        ifagc_dt = dev->i2c_read(dev->priv_dev, 0x81);
 211        rfagc_dt = dev->i2c_read(dev->priv_dev, 0x82);
 212        if (rfagc_dt == 0x40) {
 213                *ret = 1;
 214        }
 215        return 0;
 216}
 217