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