Mauro Carvalho Chehab | 586b0ca | 2005-06-28 20:45:21 -0700 | [diff] [blame] | 1 | /* |
| 2 | * For Philips TEA5767 FM Chip used on some TV Cards like Prolink Pixelview |
| 3 | * I2C address is allways 0xC0. |
| 4 | * |
Mauro Carvalho Chehab | c5287ba | 2005-07-15 03:56:28 -0700 | [diff] [blame^] | 5 | * $Id: tea5767.c,v 1.21 2005/07/14 03:06:43 mchehab Exp $ |
Mauro Carvalho Chehab | 586b0ca | 2005-06-28 20:45:21 -0700 | [diff] [blame] | 6 | * |
| 7 | * Copyright (c) 2005 Mauro Carvalho Chehab (mchehab@brturbo.com.br) |
| 8 | * This code is placed under the terms of the GNU General Public License |
| 9 | * |
| 10 | * tea5767 autodetection thanks to Torsten Seeboth and Atsushi Nakagawa |
| 11 | * from their contributions on DScaler. |
| 12 | */ |
| 13 | |
Mauro Carvalho Chehab | 586b0ca | 2005-06-28 20:45:21 -0700 | [diff] [blame] | 14 | #include <linux/i2c.h> |
Mauro Carvalho Chehab | f7ce3cc | 2005-07-12 13:58:55 -0700 | [diff] [blame] | 15 | #include <linux/videodev.h> |
| 16 | #include <linux/delay.h> |
Mauro Carvalho Chehab | 586b0ca | 2005-06-28 20:45:21 -0700 | [diff] [blame] | 17 | #include <media/tuner.h> |
Mauro Carvalho Chehab | f7ce3cc | 2005-07-12 13:58:55 -0700 | [diff] [blame] | 18 | #include <media/tuner.h> |
Mauro Carvalho Chehab | 586b0ca | 2005-06-28 20:45:21 -0700 | [diff] [blame] | 19 | |
| 20 | #define PREFIX "TEA5767 " |
| 21 | |
| 22 | /*****************************************************************************/ |
| 23 | |
| 24 | /****************************** |
| 25 | * Write mode register values * |
| 26 | ******************************/ |
| 27 | |
| 28 | /* First register */ |
Mauro Carvalho Chehab | f7ce3cc | 2005-07-12 13:58:55 -0700 | [diff] [blame] | 29 | #define TEA5767_MUTE 0x80 /* Mutes output */ |
| 30 | #define TEA5767_SEARCH 0x40 /* Activates station search */ |
Mauro Carvalho Chehab | 586b0ca | 2005-06-28 20:45:21 -0700 | [diff] [blame] | 31 | /* Bits 0-5 for divider MSB */ |
| 32 | |
| 33 | /* Second register */ |
| 34 | /* Bits 0-7 for divider LSB */ |
| 35 | |
| 36 | /* Third register */ |
| 37 | |
| 38 | /* Station search from botton to up */ |
| 39 | #define TEA5767_SEARCH_UP 0x80 |
| 40 | |
| 41 | /* Searches with ADC output = 10 */ |
| 42 | #define TEA5767_SRCH_HIGH_LVL 0x60 |
| 43 | |
| 44 | /* Searches with ADC output = 10 */ |
| 45 | #define TEA5767_SRCH_MID_LVL 0x40 |
| 46 | |
| 47 | /* Searches with ADC output = 5 */ |
| 48 | #define TEA5767_SRCH_LOW_LVL 0x20 |
| 49 | |
| 50 | /* if on, div=4*(Frf+Fif)/Fref otherwise, div=4*(Frf-Fif)/Freq) */ |
| 51 | #define TEA5767_HIGH_LO_INJECT 0x10 |
| 52 | |
| 53 | /* Disable stereo */ |
| 54 | #define TEA5767_MONO 0x08 |
| 55 | |
| 56 | /* Disable right channel and turns to mono */ |
| 57 | #define TEA5767_MUTE_RIGHT 0x04 |
| 58 | |
| 59 | /* Disable left channel and turns to mono */ |
| 60 | #define TEA5767_MUTE_LEFT 0x02 |
| 61 | |
| 62 | #define TEA5767_PORT1_HIGH 0x01 |
| 63 | |
| 64 | /* Forth register */ |
| 65 | #define TEA5767_PORT2_HIGH 0x80 |
| 66 | /* Chips stops working. Only I2C bus remains on */ |
| 67 | #define TEA5767_STDBY 0x40 |
| 68 | |
| 69 | /* Japan freq (76-108 MHz. If disabled, 87.5-108 MHz */ |
| 70 | #define TEA5767_JAPAN_BAND 0x20 |
| 71 | |
| 72 | /* Unselected means 32.768 KHz freq as reference. Otherwise Xtal at 13 MHz */ |
| 73 | #define TEA5767_XTAL_32768 0x10 |
| 74 | |
| 75 | /* Cuts weak signals */ |
| 76 | #define TEA5767_SOFT_MUTE 0x08 |
| 77 | |
| 78 | /* Activates high cut control */ |
| 79 | #define TEA5767_HIGH_CUT_CTRL 0x04 |
| 80 | |
| 81 | /* Activates stereo noise control */ |
| 82 | #define TEA5767_ST_NOISE_CTL 0x02 |
| 83 | |
| 84 | /* If activate PORT 1 indicates SEARCH or else it is used as PORT1 */ |
| 85 | #define TEA5767_SRCH_IND 0x01 |
| 86 | |
| 87 | /* Fiveth register */ |
| 88 | |
| 89 | /* By activating, it will use Xtal at 13 MHz as reference for divider */ |
| 90 | #define TEA5767_PLLREF_ENABLE 0x80 |
| 91 | |
| 92 | /* By activating, deemphasis=50, or else, deemphasis of 50us */ |
| 93 | #define TEA5767_DEEMPH_75 0X40 |
| 94 | |
| 95 | /***************************** |
| 96 | * Read mode register values * |
| 97 | *****************************/ |
| 98 | |
| 99 | /* First register */ |
| 100 | #define TEA5767_READY_FLAG_MASK 0x80 |
| 101 | #define TEA5767_BAND_LIMIT_MASK 0X40 |
| 102 | /* Bits 0-5 for divider MSB after search or preset */ |
| 103 | |
| 104 | /* Second register */ |
| 105 | /* Bits 0-7 for divider LSB after search or preset */ |
| 106 | |
| 107 | /* Third register */ |
| 108 | #define TEA5767_STEREO_MASK 0x80 |
| 109 | #define TEA5767_IF_CNTR_MASK 0x7f |
| 110 | |
| 111 | /* Four register */ |
| 112 | #define TEA5767_ADC_LEVEL_MASK 0xf0 |
| 113 | |
| 114 | /* should be 0 */ |
| 115 | #define TEA5767_CHIP_ID_MASK 0x0f |
| 116 | |
| 117 | /* Fiveth register */ |
| 118 | /* Reserved for future extensions */ |
| 119 | #define TEA5767_RESERVED_MASK 0xff |
| 120 | |
Mauro Carvalho Chehab | f7ce3cc | 2005-07-12 13:58:55 -0700 | [diff] [blame] | 121 | enum tea5767_xtal_freq { |
| 122 | TEA5767_LOW_LO_32768 = 0, |
| 123 | TEA5767_HIGH_LO_32768 = 1, |
| 124 | TEA5767_LOW_LO_13MHz = 2, |
| 125 | TEA5767_HIGH_LO_13MHz = 3, |
| 126 | }; |
| 127 | |
| 128 | |
Mauro Carvalho Chehab | 586b0ca | 2005-06-28 20:45:21 -0700 | [diff] [blame] | 129 | /*****************************************************************************/ |
| 130 | |
| 131 | static void set_tv_freq(struct i2c_client *c, unsigned int freq) |
| 132 | { |
| 133 | struct tuner *t = i2c_get_clientdata(c); |
| 134 | |
| 135 | tuner_warn("This tuner doesn't support TV freq.\n"); |
| 136 | } |
| 137 | |
| 138 | static void tea5767_status_dump(unsigned char *buffer) |
| 139 | { |
| 140 | unsigned int div, frq; |
| 141 | |
| 142 | if (TEA5767_READY_FLAG_MASK & buffer[0]) |
| 143 | printk(PREFIX "Ready Flag ON\n"); |
| 144 | else |
| 145 | printk(PREFIX "Ready Flag OFF\n"); |
| 146 | |
| 147 | if (TEA5767_BAND_LIMIT_MASK & buffer[0]) |
| 148 | printk(PREFIX "Tuner at band limit\n"); |
| 149 | else |
| 150 | printk(PREFIX "Tuner not at band limit\n"); |
| 151 | |
Mauro Carvalho Chehab | f7ce3cc | 2005-07-12 13:58:55 -0700 | [diff] [blame] | 152 | div = ((buffer[0] & 0x3f) << 8) | buffer[1]; |
Mauro Carvalho Chehab | 586b0ca | 2005-06-28 20:45:21 -0700 | [diff] [blame] | 153 | |
| 154 | switch (TEA5767_HIGH_LO_32768) { |
| 155 | case TEA5767_HIGH_LO_13MHz: |
Mauro Carvalho Chehab | c5287ba | 2005-07-15 03:56:28 -0700 | [diff] [blame^] | 156 | frq = (div * 50000 - 700000 - 225000) / 4; /* Freq in KHz */ |
Mauro Carvalho Chehab | 586b0ca | 2005-06-28 20:45:21 -0700 | [diff] [blame] | 157 | break; |
| 158 | case TEA5767_LOW_LO_13MHz: |
Mauro Carvalho Chehab | c5287ba | 2005-07-15 03:56:28 -0700 | [diff] [blame^] | 159 | frq = (div * 50000 + 700000 + 225000) / 4; /* Freq in KHz */ |
Mauro Carvalho Chehab | 586b0ca | 2005-06-28 20:45:21 -0700 | [diff] [blame] | 160 | break; |
| 161 | case TEA5767_LOW_LO_32768: |
Mauro Carvalho Chehab | c5287ba | 2005-07-15 03:56:28 -0700 | [diff] [blame^] | 162 | frq = (div * 32768 + 700000 + 225000) / 4; /* Freq in KHz */ |
Mauro Carvalho Chehab | 586b0ca | 2005-06-28 20:45:21 -0700 | [diff] [blame] | 163 | break; |
| 164 | case TEA5767_HIGH_LO_32768: |
| 165 | default: |
Mauro Carvalho Chehab | c5287ba | 2005-07-15 03:56:28 -0700 | [diff] [blame^] | 166 | frq = (div * 32768 - 700000 - 225000) / 4; /* Freq in KHz */ |
Mauro Carvalho Chehab | 586b0ca | 2005-06-28 20:45:21 -0700 | [diff] [blame] | 167 | break; |
| 168 | } |
Mauro Carvalho Chehab | f7ce3cc | 2005-07-12 13:58:55 -0700 | [diff] [blame] | 169 | buffer[0] = (div >> 8) & 0x3f; |
| 170 | buffer[1] = div & 0xff; |
Mauro Carvalho Chehab | 586b0ca | 2005-06-28 20:45:21 -0700 | [diff] [blame] | 171 | |
| 172 | printk(PREFIX "Frequency %d.%03d KHz (divider = 0x%04x)\n", |
Mauro Carvalho Chehab | f7ce3cc | 2005-07-12 13:58:55 -0700 | [diff] [blame] | 173 | frq / 1000, frq % 1000, div); |
Mauro Carvalho Chehab | 586b0ca | 2005-06-28 20:45:21 -0700 | [diff] [blame] | 174 | |
| 175 | if (TEA5767_STEREO_MASK & buffer[2]) |
| 176 | printk(PREFIX "Stereo\n"); |
| 177 | else |
| 178 | printk(PREFIX "Mono\n"); |
| 179 | |
Mauro Carvalho Chehab | f7ce3cc | 2005-07-12 13:58:55 -0700 | [diff] [blame] | 180 | printk(PREFIX "IF Counter = %d\n", buffer[2] & TEA5767_IF_CNTR_MASK); |
Mauro Carvalho Chehab | 586b0ca | 2005-06-28 20:45:21 -0700 | [diff] [blame] | 181 | |
Mauro Carvalho Chehab | f7ce3cc | 2005-07-12 13:58:55 -0700 | [diff] [blame] | 182 | printk(PREFIX "ADC Level = %d\n", |
| 183 | (buffer[3] & TEA5767_ADC_LEVEL_MASK) >> 4); |
Mauro Carvalho Chehab | 586b0ca | 2005-06-28 20:45:21 -0700 | [diff] [blame] | 184 | |
Mauro Carvalho Chehab | f7ce3cc | 2005-07-12 13:58:55 -0700 | [diff] [blame] | 185 | printk(PREFIX "Chip ID = %d\n", (buffer[3] & TEA5767_CHIP_ID_MASK)); |
Mauro Carvalho Chehab | 586b0ca | 2005-06-28 20:45:21 -0700 | [diff] [blame] | 186 | |
Mauro Carvalho Chehab | f7ce3cc | 2005-07-12 13:58:55 -0700 | [diff] [blame] | 187 | printk(PREFIX "Reserved = 0x%02x\n", |
| 188 | (buffer[4] & TEA5767_RESERVED_MASK)); |
Mauro Carvalho Chehab | 586b0ca | 2005-06-28 20:45:21 -0700 | [diff] [blame] | 189 | } |
| 190 | |
| 191 | /* Freq should be specifyed at 62.5 Hz */ |
| 192 | static void set_radio_freq(struct i2c_client *c, unsigned int frq) |
| 193 | { |
| 194 | struct tuner *t = i2c_get_clientdata(c); |
Mauro Carvalho Chehab | f7ce3cc | 2005-07-12 13:58:55 -0700 | [diff] [blame] | 195 | unsigned char buffer[5]; |
Mauro Carvalho Chehab | 586b0ca | 2005-06-28 20:45:21 -0700 | [diff] [blame] | 196 | unsigned div; |
| 197 | int rc; |
| 198 | |
Mauro Carvalho Chehab | c5287ba | 2005-07-15 03:56:28 -0700 | [diff] [blame^] | 199 | tuner_dbg (PREFIX "radio freq = %d.%03d MHz\n", frq/16000,(frq/16)%1000); |
Mauro Carvalho Chehab | 586b0ca | 2005-06-28 20:45:21 -0700 | [diff] [blame] | 200 | |
| 201 | /* Rounds freq to next decimal value - for 62.5 KHz step */ |
| 202 | /* frq = 20*(frq/16)+radio_frq[frq%16]; */ |
| 203 | |
| 204 | buffer[2] = TEA5767_PORT1_HIGH; |
Mauro Carvalho Chehab | f7ce3cc | 2005-07-12 13:58:55 -0700 | [diff] [blame] | 205 | buffer[3] = TEA5767_PORT2_HIGH | TEA5767_HIGH_CUT_CTRL | |
| 206 | TEA5767_ST_NOISE_CTL | TEA5767_JAPAN_BAND; |
| 207 | buffer[4] = 0; |
| 208 | |
| 209 | if (t->mode == T_STANDBY) { |
| 210 | tuner_dbg("TEA5767 set to standby mode\n"); |
| 211 | buffer[3] |= TEA5767_STDBY; |
| 212 | } |
Mauro Carvalho Chehab | 586b0ca | 2005-06-28 20:45:21 -0700 | [diff] [blame] | 213 | |
| 214 | if (t->audmode == V4L2_TUNER_MODE_MONO) { |
| 215 | tuner_dbg("TEA5767 set to mono\n"); |
| 216 | buffer[2] |= TEA5767_MONO; |
Mauro Carvalho Chehab | f7ce3cc | 2005-07-12 13:58:55 -0700 | [diff] [blame] | 217 | } else { |
| 218 | tuner_dbg("TEA5767 set to stereo\n"); |
| 219 | } |
Mauro Carvalho Chehab | 586b0ca | 2005-06-28 20:45:21 -0700 | [diff] [blame] | 220 | |
Mauro Carvalho Chehab | f7ce3cc | 2005-07-12 13:58:55 -0700 | [diff] [blame] | 221 | /* Should be replaced */ |
| 222 | switch (TEA5767_HIGH_LO_32768) { |
Mauro Carvalho Chehab | 586b0ca | 2005-06-28 20:45:21 -0700 | [diff] [blame] | 223 | case TEA5767_HIGH_LO_13MHz: |
Mauro Carvalho Chehab | f7ce3cc | 2005-07-12 13:58:55 -0700 | [diff] [blame] | 224 | tuner_dbg ("TEA5767 radio HIGH LO inject xtal @ 13 MHz\n"); |
Mauro Carvalho Chehab | 586b0ca | 2005-06-28 20:45:21 -0700 | [diff] [blame] | 225 | buffer[2] |= TEA5767_HIGH_LO_INJECT; |
| 226 | buffer[4] |= TEA5767_PLLREF_ENABLE; |
Mauro Carvalho Chehab | c5287ba | 2005-07-15 03:56:28 -0700 | [diff] [blame^] | 227 | div = (frq * 4000 / 16 + 700000 + 225000 + 25000) / 50000; |
Mauro Carvalho Chehab | 586b0ca | 2005-06-28 20:45:21 -0700 | [diff] [blame] | 228 | break; |
| 229 | case TEA5767_LOW_LO_13MHz: |
Mauro Carvalho Chehab | f7ce3cc | 2005-07-12 13:58:55 -0700 | [diff] [blame] | 230 | tuner_dbg ("TEA5767 radio LOW LO inject xtal @ 13 MHz\n"); |
Mauro Carvalho Chehab | 586b0ca | 2005-06-28 20:45:21 -0700 | [diff] [blame] | 231 | |
| 232 | buffer[4] |= TEA5767_PLLREF_ENABLE; |
Mauro Carvalho Chehab | c5287ba | 2005-07-15 03:56:28 -0700 | [diff] [blame^] | 233 | div = (frq * 4000 / 16 - 700000 - 225000 + 25000) / 50000; |
Mauro Carvalho Chehab | 586b0ca | 2005-06-28 20:45:21 -0700 | [diff] [blame] | 234 | break; |
| 235 | case TEA5767_LOW_LO_32768: |
Mauro Carvalho Chehab | f7ce3cc | 2005-07-12 13:58:55 -0700 | [diff] [blame] | 236 | tuner_dbg ("TEA5767 radio LOW LO inject xtal @ 32,768 MHz\n"); |
Mauro Carvalho Chehab | 586b0ca | 2005-06-28 20:45:21 -0700 | [diff] [blame] | 237 | buffer[3] |= TEA5767_XTAL_32768; |
| 238 | /* const 700=4000*175 Khz - to adjust freq to right value */ |
Mauro Carvalho Chehab | c5287ba | 2005-07-15 03:56:28 -0700 | [diff] [blame^] | 239 | div = ((frq * 4000 / 16 - 700000 - 225000) + 16384) >> 15; |
Mauro Carvalho Chehab | 586b0ca | 2005-06-28 20:45:21 -0700 | [diff] [blame] | 240 | break; |
| 241 | case TEA5767_HIGH_LO_32768: |
| 242 | default: |
Mauro Carvalho Chehab | f7ce3cc | 2005-07-12 13:58:55 -0700 | [diff] [blame] | 243 | tuner_dbg ("TEA5767 radio HIGH LO inject xtal @ 32,768 MHz\n"); |
Mauro Carvalho Chehab | 586b0ca | 2005-06-28 20:45:21 -0700 | [diff] [blame] | 244 | |
| 245 | buffer[2] |= TEA5767_HIGH_LO_INJECT; |
| 246 | buffer[3] |= TEA5767_XTAL_32768; |
Mauro Carvalho Chehab | c5287ba | 2005-07-15 03:56:28 -0700 | [diff] [blame^] | 247 | div = ((frq * (4000 / 16) + 700000 + 225000) + 16384) >> 15; |
Mauro Carvalho Chehab | 586b0ca | 2005-06-28 20:45:21 -0700 | [diff] [blame] | 248 | break; |
| 249 | } |
Mauro Carvalho Chehab | f7ce3cc | 2005-07-12 13:58:55 -0700 | [diff] [blame] | 250 | buffer[0] = (div >> 8) & 0x3f; |
| 251 | buffer[1] = div & 0xff; |
Mauro Carvalho Chehab | 586b0ca | 2005-06-28 20:45:21 -0700 | [diff] [blame] | 252 | |
Mauro Carvalho Chehab | f7ce3cc | 2005-07-12 13:58:55 -0700 | [diff] [blame] | 253 | if (5 != (rc = i2c_master_send(c, buffer, 5))) |
| 254 | tuner_warn("i2c i/o error: rc == %d (should be 5)\n", rc); |
Mauro Carvalho Chehab | c5287ba | 2005-07-15 03:56:28 -0700 | [diff] [blame^] | 255 | |
| 256 | if (tuner_debug) { |
| 257 | if (5 != (rc = i2c_master_recv(c, buffer, 5))) |
| 258 | tuner_warn("i2c i/o error: rc == %d (should be 5)\n", rc); |
| 259 | else |
| 260 | tea5767_status_dump(buffer); |
| 261 | } |
Mauro Carvalho Chehab | 586b0ca | 2005-06-28 20:45:21 -0700 | [diff] [blame] | 262 | } |
| 263 | |
| 264 | static int tea5767_signal(struct i2c_client *c) |
| 265 | { |
| 266 | unsigned char buffer[5]; |
| 267 | int rc; |
| 268 | struct tuner *t = i2c_get_clientdata(c); |
| 269 | |
Mauro Carvalho Chehab | f7ce3cc | 2005-07-12 13:58:55 -0700 | [diff] [blame] | 270 | memset(buffer, 0, sizeof(buffer)); |
| 271 | if (5 != (rc = i2c_master_recv(c, buffer, 5))) |
| 272 | tuner_warn("i2c i/o error: rc == %d (should be 5)\n", rc); |
Mauro Carvalho Chehab | 586b0ca | 2005-06-28 20:45:21 -0700 | [diff] [blame] | 273 | |
Mauro Carvalho Chehab | f7ce3cc | 2005-07-12 13:58:55 -0700 | [diff] [blame] | 274 | return ((buffer[3] & TEA5767_ADC_LEVEL_MASK) << (13 - 4)); |
Mauro Carvalho Chehab | 586b0ca | 2005-06-28 20:45:21 -0700 | [diff] [blame] | 275 | } |
| 276 | |
| 277 | static int tea5767_stereo(struct i2c_client *c) |
| 278 | { |
| 279 | unsigned char buffer[5]; |
| 280 | int rc; |
| 281 | struct tuner *t = i2c_get_clientdata(c); |
| 282 | |
Mauro Carvalho Chehab | f7ce3cc | 2005-07-12 13:58:55 -0700 | [diff] [blame] | 283 | memset(buffer, 0, sizeof(buffer)); |
| 284 | if (5 != (rc = i2c_master_recv(c, buffer, 5))) |
| 285 | tuner_warn("i2c i/o error: rc == %d (should be 5)\n", rc); |
Mauro Carvalho Chehab | 586b0ca | 2005-06-28 20:45:21 -0700 | [diff] [blame] | 286 | |
| 287 | rc = buffer[2] & TEA5767_STEREO_MASK; |
| 288 | |
Mauro Carvalho Chehab | f7ce3cc | 2005-07-12 13:58:55 -0700 | [diff] [blame] | 289 | tuner_dbg("TEA5767 radio ST GET = %02x\n", rc); |
Mauro Carvalho Chehab | 586b0ca | 2005-06-28 20:45:21 -0700 | [diff] [blame] | 290 | |
Mauro Carvalho Chehab | f7ce3cc | 2005-07-12 13:58:55 -0700 | [diff] [blame] | 291 | return ((buffer[2] & TEA5767_STEREO_MASK) ? V4L2_TUNER_SUB_STEREO : 0); |
Mauro Carvalho Chehab | 586b0ca | 2005-06-28 20:45:21 -0700 | [diff] [blame] | 292 | } |
| 293 | |
Mauro Carvalho Chehab | f7ce3cc | 2005-07-12 13:58:55 -0700 | [diff] [blame] | 294 | int tea5767_autodetection(struct i2c_client *c) |
Mauro Carvalho Chehab | 586b0ca | 2005-06-28 20:45:21 -0700 | [diff] [blame] | 295 | { |
Mauro Carvalho Chehab | f7ce3cc | 2005-07-12 13:58:55 -0700 | [diff] [blame] | 296 | unsigned char buffer[5] = { 0xff, 0xff, 0xff, 0xff, 0xff }; |
Mauro Carvalho Chehab | 586b0ca | 2005-06-28 20:45:21 -0700 | [diff] [blame] | 297 | int rc; |
| 298 | struct tuner *t = i2c_get_clientdata(c); |
| 299 | |
Mauro Carvalho Chehab | f7ce3cc | 2005-07-12 13:58:55 -0700 | [diff] [blame] | 300 | if (5 != (rc = i2c_master_recv(c, buffer, 5))) { |
Mauro Carvalho Chehab | c5287ba | 2005-07-15 03:56:28 -0700 | [diff] [blame^] | 301 | tuner_warn("It is not a TEA5767. Received %i bytes.\n", rc); |
Mauro Carvalho Chehab | 586b0ca | 2005-06-28 20:45:21 -0700 | [diff] [blame] | 302 | return EINVAL; |
| 303 | } |
| 304 | |
| 305 | /* If all bytes are the same then it's a TV tuner and not a tea5767 chip. */ |
Mauro Carvalho Chehab | f7ce3cc | 2005-07-12 13:58:55 -0700 | [diff] [blame] | 306 | if (buffer[0] == buffer[1] && buffer[0] == buffer[2] && |
| 307 | buffer[0] == buffer[3] && buffer[0] == buffer[4]) { |
| 308 | tuner_warn("All bytes are equal. It is not a TEA5767\n"); |
Mauro Carvalho Chehab | 586b0ca | 2005-06-28 20:45:21 -0700 | [diff] [blame] | 309 | return EINVAL; |
| 310 | } |
| 311 | |
| 312 | /* Status bytes: |
| 313 | * Byte 4: bit 3:1 : CI (Chip Identification) == 0 |
Mauro Carvalho Chehab | f7ce3cc | 2005-07-12 13:58:55 -0700 | [diff] [blame] | 314 | * bit 0 : internally set to 0 |
Mauro Carvalho Chehab | 586b0ca | 2005-06-28 20:45:21 -0700 | [diff] [blame] | 315 | * Byte 5: bit 7:0 : == 0 |
| 316 | */ |
Mauro Carvalho Chehab | 586b0ca | 2005-06-28 20:45:21 -0700 | [diff] [blame] | 317 | if (!((buffer[3] & 0x0f) == 0x00) && (buffer[4] == 0x00)) { |
Mauro Carvalho Chehab | f7ce3cc | 2005-07-12 13:58:55 -0700 | [diff] [blame] | 318 | tuner_warn("Chip ID is not zero. It is not a TEA5767\n"); |
Mauro Carvalho Chehab | 586b0ca | 2005-06-28 20:45:21 -0700 | [diff] [blame] | 319 | return EINVAL; |
| 320 | } |
Mauro Carvalho Chehab | c5287ba | 2005-07-15 03:56:28 -0700 | [diff] [blame^] | 321 | |
Mauro Carvalho Chehab | f7ce3cc | 2005-07-12 13:58:55 -0700 | [diff] [blame] | 322 | tuner_warn("TEA5767 detected.\n"); |
Mauro Carvalho Chehab | 586b0ca | 2005-06-28 20:45:21 -0700 | [diff] [blame] | 323 | return 0; |
| 324 | } |
| 325 | |
| 326 | int tea5767_tuner_init(struct i2c_client *c) |
| 327 | { |
| 328 | struct tuner *t = i2c_get_clientdata(c); |
| 329 | |
Mauro Carvalho Chehab | f7ce3cc | 2005-07-12 13:58:55 -0700 | [diff] [blame] | 330 | if (tea5767_autodetection(c) == EINVAL) |
| 331 | return EINVAL; |
Mauro Carvalho Chehab | 586b0ca | 2005-06-28 20:45:21 -0700 | [diff] [blame] | 332 | |
Mauro Carvalho Chehab | f7ce3cc | 2005-07-12 13:58:55 -0700 | [diff] [blame] | 333 | tuner_info("type set to %d (%s)\n", t->type, "Philips TEA5767HN FM Radio"); |
| 334 | strlcpy(c->name, "tea5767", sizeof(c->name)); |
Mauro Carvalho Chehab | 586b0ca | 2005-06-28 20:45:21 -0700 | [diff] [blame] | 335 | |
Mauro Carvalho Chehab | f7ce3cc | 2005-07-12 13:58:55 -0700 | [diff] [blame] | 336 | t->tv_freq = set_tv_freq; |
Mauro Carvalho Chehab | 586b0ca | 2005-06-28 20:45:21 -0700 | [diff] [blame] | 337 | t->radio_freq = set_radio_freq; |
| 338 | t->has_signal = tea5767_signal; |
Mauro Carvalho Chehab | f7ce3cc | 2005-07-12 13:58:55 -0700 | [diff] [blame] | 339 | t->is_stereo = tea5767_stereo; |
Mauro Carvalho Chehab | 586b0ca | 2005-06-28 20:45:21 -0700 | [diff] [blame] | 340 | |
| 341 | return (0); |
| 342 | } |