Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1 | /* |
| 2 | * Support for OR51132 (pcHDTV HD-3000) - VSB/QAM |
| 3 | * |
| 4 | * Copyright (C) 2005 Kirk Lapray <kirk_lapray@bigfoot.com> |
| 5 | * |
| 6 | * Based on code from Jack Kelliher (kelliher@xmission.com) |
| 7 | * Copyright (C) 2002 & pcHDTV, inc. |
| 8 | * |
| 9 | * This program is free software; you can redistribute it and/or modify |
| 10 | * it under the terms of the GNU General Public License as published by |
| 11 | * the Free Software Foundation; either version 2 of the License, or |
| 12 | * (at your option) any later version. |
| 13 | * |
| 14 | * This program is distributed in the hope that it will be useful, |
| 15 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 16 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 17 | * GNU General Public License for more details. |
| 18 | * |
| 19 | * You should have received a copy of the GNU General Public License |
| 20 | * along with this program; if not, write to the Free Software |
| 21 | * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. |
| 22 | * |
| 23 | */ |
| 24 | |
| 25 | /* |
| 26 | * This driver needs two external firmware files. Please copy |
| 27 | * "dvb-fe-or51132-vsb.fw" and "dvb-fe-or51132-qam.fw" to |
| 28 | * /usr/lib/hotplug/firmware/ or /lib/firmware/ |
| 29 | * (depending on configuration of firmware hotplug). |
| 30 | */ |
| 31 | #define OR51132_VSB_FIRMWARE "dvb-fe-or51132-vsb.fw" |
| 32 | #define OR51132_QAM_FIRMWARE "dvb-fe-or51132-qam.fw" |
| 33 | |
| 34 | #include <linux/kernel.h> |
| 35 | #include <linux/module.h> |
| 36 | #include <linux/moduleparam.h> |
| 37 | #include <linux/init.h> |
| 38 | #include <linux/delay.h> |
Tim Schmielau | 4e57b68 | 2005-10-30 15:03:48 -0800 | [diff] [blame] | 39 | #include <linux/string.h> |
| 40 | #include <linux/slab.h> |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 41 | #include <asm/byteorder.h> |
| 42 | |
| 43 | #include "dvb_frontend.h" |
| 44 | #include "dvb-pll.h" |
| 45 | #include "or51132.h" |
| 46 | |
| 47 | static int debug; |
| 48 | #define dprintk(args...) \ |
| 49 | do { \ |
| 50 | if (debug) printk(KERN_DEBUG "or51132: " args); \ |
| 51 | } while (0) |
| 52 | |
| 53 | |
| 54 | struct or51132_state |
| 55 | { |
| 56 | struct i2c_adapter* i2c; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 57 | |
| 58 | /* Configuration settings */ |
| 59 | const struct or51132_config* config; |
| 60 | |
| 61 | struct dvb_frontend frontend; |
| 62 | |
| 63 | /* Demodulator private data */ |
| 64 | fe_modulation_t current_modulation; |
| 65 | |
| 66 | /* Tuner private data */ |
| 67 | u32 current_frequency; |
| 68 | }; |
| 69 | |
| 70 | static int i2c_writebytes (struct or51132_state* state, u8 reg, u8 *buf, int len) |
| 71 | { |
| 72 | int err; |
| 73 | struct i2c_msg msg; |
| 74 | msg.addr = reg; |
| 75 | msg.flags = 0; |
| 76 | msg.len = len; |
| 77 | msg.buf = buf; |
| 78 | |
| 79 | if ((err = i2c_transfer(state->i2c, &msg, 1)) != 1) { |
| 80 | printk(KERN_WARNING "or51132: i2c_writebytes error (addr %02x, err == %i)\n", reg, err); |
| 81 | return -EREMOTEIO; |
| 82 | } |
| 83 | |
| 84 | return 0; |
| 85 | } |
| 86 | |
| 87 | static u8 i2c_readbytes (struct or51132_state* state, u8 reg, u8* buf, int len) |
| 88 | { |
| 89 | int err; |
| 90 | struct i2c_msg msg; |
| 91 | msg.addr = reg; |
| 92 | msg.flags = I2C_M_RD; |
| 93 | msg.len = len; |
| 94 | msg.buf = buf; |
| 95 | |
| 96 | if ((err = i2c_transfer(state->i2c, &msg, 1)) != 1) { |
| 97 | printk(KERN_WARNING "or51132: i2c_readbytes error (addr %02x, err == %i)\n", reg, err); |
| 98 | return -EREMOTEIO; |
| 99 | } |
| 100 | |
| 101 | return 0; |
| 102 | } |
| 103 | |
| 104 | static int or51132_load_firmware (struct dvb_frontend* fe, const struct firmware *fw) |
| 105 | { |
Johannes Stezenbach | b874270 | 2005-05-16 21:54:31 -0700 | [diff] [blame] | 106 | struct or51132_state* state = fe->demodulator_priv; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 107 | static u8 run_buf[] = {0x7F,0x01}; |
Trent Piepho | 0ead091 | 2006-04-02 20:40:33 -0300 | [diff] [blame] | 108 | u8 rec_buf[8]; |
| 109 | u8 cmd_buf[3]; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 110 | u32 firmwareAsize, firmwareBsize; |
| 111 | int i,ret; |
| 112 | |
| 113 | dprintk("Firmware is %Zd bytes\n",fw->size); |
| 114 | |
| 115 | /* Get size of firmware A and B */ |
| 116 | firmwareAsize = le32_to_cpu(*((u32*)fw->data)); |
| 117 | dprintk("FirmwareA is %i bytes\n",firmwareAsize); |
| 118 | firmwareBsize = le32_to_cpu(*((u32*)(fw->data+4))); |
| 119 | dprintk("FirmwareB is %i bytes\n",firmwareBsize); |
| 120 | |
| 121 | /* Upload firmware */ |
| 122 | if ((ret = i2c_writebytes(state,state->config->demod_address, |
| 123 | &fw->data[8],firmwareAsize))) { |
| 124 | printk(KERN_WARNING "or51132: load_firmware error 1\n"); |
| 125 | return ret; |
| 126 | } |
| 127 | msleep(1); /* 1ms */ |
| 128 | if ((ret = i2c_writebytes(state,state->config->demod_address, |
| 129 | &fw->data[8+firmwareAsize],firmwareBsize))) { |
| 130 | printk(KERN_WARNING "or51132: load_firmware error 2\n"); |
| 131 | return ret; |
| 132 | } |
| 133 | msleep(1); /* 1ms */ |
| 134 | |
| 135 | if ((ret = i2c_writebytes(state,state->config->demod_address, |
| 136 | run_buf,2))) { |
| 137 | printk(KERN_WARNING "or51132: load_firmware error 3\n"); |
| 138 | return ret; |
| 139 | } |
| 140 | |
| 141 | /* Wait at least 5 msec */ |
| 142 | msleep(20); /* 10ms */ |
| 143 | |
| 144 | if ((ret = i2c_writebytes(state,state->config->demod_address, |
| 145 | run_buf,2))) { |
| 146 | printk(KERN_WARNING "or51132: load_firmware error 4\n"); |
| 147 | return ret; |
| 148 | } |
| 149 | |
| 150 | /* 50ms for operation to begin */ |
| 151 | msleep(50); |
| 152 | |
| 153 | /* Read back ucode version to besure we loaded correctly and are really up and running */ |
| 154 | /* Get uCode version */ |
| 155 | cmd_buf[0] = 0x10; |
| 156 | cmd_buf[1] = 0x10; |
| 157 | cmd_buf[2] = 0x00; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 158 | msleep(20); /* 20ms */ |
| 159 | if ((ret = i2c_writebytes(state,state->config->demod_address, |
| 160 | cmd_buf,3))) { |
| 161 | printk(KERN_WARNING "or51132: load_firmware error a\n"); |
| 162 | return ret; |
| 163 | } |
| 164 | |
| 165 | cmd_buf[0] = 0x04; |
| 166 | cmd_buf[1] = 0x17; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 167 | msleep(20); /* 20ms */ |
| 168 | if ((ret = i2c_writebytes(state,state->config->demod_address, |
| 169 | cmd_buf,2))) { |
| 170 | printk(KERN_WARNING "or51132: load_firmware error b\n"); |
| 171 | return ret; |
| 172 | } |
| 173 | |
| 174 | cmd_buf[0] = 0x00; |
| 175 | cmd_buf[1] = 0x00; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 176 | msleep(20); /* 20ms */ |
| 177 | if ((ret = i2c_writebytes(state,state->config->demod_address, |
| 178 | cmd_buf,2))) { |
| 179 | printk(KERN_WARNING "or51132: load_firmware error c\n"); |
| 180 | return ret; |
| 181 | } |
| 182 | |
| 183 | for(i=0;i<4;i++) { |
| 184 | msleep(20); /* 20ms */ |
Michael Krufky | d147ed2 | 2006-04-03 01:29:09 -0300 | [diff] [blame] | 185 | /* Once upon a time, this command might have had something |
Trent Piepho | 0ead091 | 2006-04-02 20:40:33 -0300 | [diff] [blame] | 186 | to do with getting the firmware version, but it's |
| 187 | not used anymore: |
| 188 | {0x04,0x00,0x30,0x00,i+1} */ |
| 189 | /* Read 8 bytes, two bytes at a time */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 190 | if ((ret = i2c_readbytes(state,state->config->demod_address, |
| 191 | &rec_buf[i*2],2))) { |
| 192 | printk(KERN_WARNING |
| 193 | "or51132: load_firmware error d - %d\n",i); |
| 194 | return ret; |
| 195 | } |
| 196 | } |
| 197 | |
| 198 | printk(KERN_WARNING |
| 199 | "or51132: Version: %02X%02X%02X%02X-%02X%02X%02X%02X (%02X%01X-%01X-%02X%01X-%01X)\n", |
| 200 | rec_buf[1],rec_buf[0],rec_buf[3],rec_buf[2], |
| 201 | rec_buf[5],rec_buf[4],rec_buf[7],rec_buf[6], |
| 202 | rec_buf[3],rec_buf[2]>>4,rec_buf[2]&0x0f, |
| 203 | rec_buf[5],rec_buf[4]>>4,rec_buf[4]&0x0f); |
| 204 | |
| 205 | cmd_buf[0] = 0x10; |
| 206 | cmd_buf[1] = 0x00; |
| 207 | cmd_buf[2] = 0x00; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 208 | msleep(20); /* 20ms */ |
| 209 | if ((ret = i2c_writebytes(state,state->config->demod_address, |
| 210 | cmd_buf,3))) { |
| 211 | printk(KERN_WARNING "or51132: load_firmware error e\n"); |
| 212 | return ret; |
| 213 | } |
| 214 | return 0; |
| 215 | }; |
| 216 | |
| 217 | static int or51132_init(struct dvb_frontend* fe) |
| 218 | { |
| 219 | return 0; |
| 220 | } |
| 221 | |
| 222 | static int or51132_read_ber(struct dvb_frontend* fe, u32* ber) |
| 223 | { |
| 224 | *ber = 0; |
| 225 | return 0; |
| 226 | } |
| 227 | |
| 228 | static int or51132_read_ucblocks(struct dvb_frontend* fe, u32* ucblocks) |
| 229 | { |
| 230 | *ucblocks = 0; |
| 231 | return 0; |
| 232 | } |
| 233 | |
| 234 | static int or51132_sleep(struct dvb_frontend* fe) |
| 235 | { |
| 236 | return 0; |
| 237 | } |
| 238 | |
| 239 | static int or51132_setmode(struct dvb_frontend* fe) |
| 240 | { |
Johannes Stezenbach | b874270 | 2005-05-16 21:54:31 -0700 | [diff] [blame] | 241 | struct or51132_state* state = fe->demodulator_priv; |
Trent Piepho | 68ef505 | 2006-04-04 09:30:33 -0300 | [diff] [blame] | 242 | unsigned char cmd_buf[3]; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 243 | |
| 244 | dprintk("setmode %d\n",(int)state->current_modulation); |
| 245 | /* set operation mode in Receiver 1 register; */ |
| 246 | cmd_buf[0] = 0x04; |
| 247 | cmd_buf[1] = 0x01; |
| 248 | switch (state->current_modulation) { |
| 249 | case QAM_256: |
| 250 | case QAM_64: |
| 251 | case QAM_AUTO: |
| 252 | /* Auto-deinterleave; MPEG ser, MPEG2tr, phase noise-high*/ |
| 253 | cmd_buf[2] = 0x5F; |
| 254 | break; |
| 255 | case VSB_8: |
| 256 | /* Auto CH, Auto NTSC rej, MPEGser, MPEG2tr, phase noise-high*/ |
| 257 | cmd_buf[2] = 0x50; |
| 258 | break; |
| 259 | default: |
| 260 | printk("setmode:Modulation set to unsupported value\n"); |
| 261 | }; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 262 | if (i2c_writebytes(state,state->config->demod_address, |
| 263 | cmd_buf,3)) { |
| 264 | printk(KERN_WARNING "or51132: set_mode error 1\n"); |
| 265 | return -1; |
| 266 | } |
| 267 | dprintk("or51132: set #1 to %02x\n", cmd_buf[2]); |
| 268 | |
| 269 | /* Set operation mode in Receiver 6 register */ |
| 270 | cmd_buf[0] = 0x1C; |
| 271 | switch (state->current_modulation) { |
| 272 | case QAM_AUTO: |
| 273 | /* REC MODE Normal Carrier Lock */ |
| 274 | cmd_buf[1] = 0x00; |
| 275 | /* Channel MODE Auto QAM64/256 */ |
| 276 | cmd_buf[2] = 0x4f; |
| 277 | break; |
| 278 | case QAM_256: |
| 279 | /* REC MODE Normal Carrier Lock */ |
| 280 | cmd_buf[1] = 0x00; |
| 281 | /* Channel MODE QAM256 */ |
| 282 | cmd_buf[2] = 0x45; |
| 283 | break; |
| 284 | case QAM_64: |
| 285 | /* REC MODE Normal Carrier Lock */ |
| 286 | cmd_buf[1] = 0x00; |
| 287 | /* Channel MODE QAM64 */ |
| 288 | cmd_buf[2] = 0x43; |
| 289 | break; |
| 290 | case VSB_8: |
| 291 | /* REC MODE inv IF spectrum, Normal */ |
| 292 | cmd_buf[1] = 0x03; |
| 293 | /* Channel MODE ATSC/VSB8 */ |
| 294 | cmd_buf[2] = 0x06; |
| 295 | break; |
| 296 | default: |
| 297 | printk("setmode: Modulation set to unsupported value\n"); |
| 298 | }; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 299 | msleep(20); /* 20ms */ |
| 300 | if (i2c_writebytes(state,state->config->demod_address, |
| 301 | cmd_buf,3)) { |
| 302 | printk(KERN_WARNING "or51132: set_mode error 2\n"); |
| 303 | return -1; |
| 304 | } |
| 305 | dprintk("or51132: set #6 to 0x%02x%02x\n", cmd_buf[1], cmd_buf[2]); |
| 306 | |
| 307 | return 0; |
| 308 | } |
| 309 | |
Trent Piepho | 8718455 | 2006-04-04 09:30:29 -0300 | [diff] [blame] | 310 | /* Some modulations use the same firmware. This classifies modulations |
| 311 | by the firmware they use. */ |
| 312 | #define MOD_FWCLASS_UNKNOWN 0 |
| 313 | #define MOD_FWCLASS_VSB 1 |
| 314 | #define MOD_FWCLASS_QAM 2 |
| 315 | static int modulation_fw_class(fe_modulation_t modulation) |
| 316 | { |
| 317 | switch(modulation) { |
| 318 | case VSB_8: |
| 319 | return MOD_FWCLASS_VSB; |
| 320 | case QAM_AUTO: |
| 321 | case QAM_64: |
| 322 | case QAM_256: |
| 323 | return MOD_FWCLASS_QAM; |
| 324 | default: |
| 325 | return MOD_FWCLASS_UNKNOWN; |
| 326 | } |
| 327 | } |
| 328 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 329 | static int or51132_set_parameters(struct dvb_frontend* fe, |
| 330 | struct dvb_frontend_parameters *param) |
| 331 | { |
| 332 | int ret; |
Johannes Stezenbach | b874270 | 2005-05-16 21:54:31 -0700 | [diff] [blame] | 333 | struct or51132_state* state = fe->demodulator_priv; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 334 | const struct firmware *fw; |
Trent Piepho | 8718455 | 2006-04-04 09:30:29 -0300 | [diff] [blame] | 335 | const char *fwname; |
| 336 | int clock_mode; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 337 | |
Trent Piepho | 8718455 | 2006-04-04 09:30:29 -0300 | [diff] [blame] | 338 | /* Upload new firmware only if we need a different one */ |
| 339 | if (modulation_fw_class(state->current_modulation) != |
| 340 | modulation_fw_class(param->u.vsb.modulation)) { |
| 341 | switch(modulation_fw_class(param->u.vsb.modulation)) { |
| 342 | case MOD_FWCLASS_VSB: |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 343 | dprintk("set_parameters VSB MODE\n"); |
Trent Piepho | 8718455 | 2006-04-04 09:30:29 -0300 | [diff] [blame] | 344 | fwname = OR51132_VSB_FIRMWARE; |
| 345 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 346 | /* Set non-punctured clock for VSB */ |
Trent Piepho | 8718455 | 2006-04-04 09:30:29 -0300 | [diff] [blame] | 347 | clock_mode = 0; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 348 | break; |
Trent Piepho | 8718455 | 2006-04-04 09:30:29 -0300 | [diff] [blame] | 349 | case MOD_FWCLASS_QAM: |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 350 | dprintk("set_parameters QAM MODE\n"); |
Trent Piepho | 8718455 | 2006-04-04 09:30:29 -0300 | [diff] [blame] | 351 | fwname = OR51132_QAM_FIRMWARE; |
| 352 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 353 | /* Set punctured clock for QAM */ |
Trent Piepho | 8718455 | 2006-04-04 09:30:29 -0300 | [diff] [blame] | 354 | clock_mode = 1; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 355 | break; |
| 356 | default: |
Trent Piepho | 8718455 | 2006-04-04 09:30:29 -0300 | [diff] [blame] | 357 | printk("or51132: Modulation type(%d) UNSUPPORTED\n", |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 358 | param->u.vsb.modulation); |
| 359 | return -1; |
Trent Piepho | 8718455 | 2006-04-04 09:30:29 -0300 | [diff] [blame] | 360 | } |
| 361 | printk("or51132: Waiting for firmware upload(%s)...\n", |
| 362 | fwname); |
| 363 | ret = request_firmware(&fw, fwname, &state->i2c->dev); |
| 364 | if (ret) { |
| 365 | printk(KERN_WARNING "or51132: No firmware up" |
| 366 | "loaded(timeout or file not found?)\n"); |
| 367 | return ret; |
| 368 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 369 | ret = or51132_load_firmware(fe, fw); |
| 370 | release_firmware(fw); |
| 371 | if (ret) { |
| 372 | printk(KERN_WARNING "or51132: Writing firmware to " |
| 373 | "device failed!\n"); |
| 374 | return ret; |
| 375 | } |
| 376 | printk("or51132: Firmware upload complete.\n"); |
Trent Piepho | 8718455 | 2006-04-04 09:30:29 -0300 | [diff] [blame] | 377 | state->config->set_ts_params(fe, clock_mode); |
| 378 | } |
| 379 | /* Change only if we are actually changing the modulation */ |
| 380 | if (state->current_modulation != param->u.vsb.modulation) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 381 | state->current_modulation = param->u.vsb.modulation; |
| 382 | or51132_setmode(fe); |
| 383 | } |
| 384 | |
Patrick Boettcher | dea7486 | 2006-05-14 05:01:31 -0300 | [diff] [blame] | 385 | if (fe->ops.tuner_ops.set_params) { |
| 386 | fe->ops.tuner_ops.set_params(fe, param); |
| 387 | if (fe->ops.i2c_gate_ctrl) fe->ops.i2c_gate_ctrl(fe, 0); |
Andrew de Quincey | 44d92aa | 2006-04-18 17:47:10 -0300 | [diff] [blame] | 388 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 389 | |
Mac Michaels | 80e27e2 | 2005-09-09 13:02:40 -0700 | [diff] [blame] | 390 | /* Set to current mode */ |
| 391 | or51132_setmode(fe); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 392 | |
Mac Michaels | 80e27e2 | 2005-09-09 13:02:40 -0700 | [diff] [blame] | 393 | /* Update current frequency */ |
| 394 | state->current_frequency = param->frequency; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 395 | return 0; |
| 396 | } |
| 397 | |
Trent Piepho | 0dbbc0a | 2006-04-06 06:03:09 -0300 | [diff] [blame] | 398 | static int or51132_get_parameters(struct dvb_frontend* fe, |
| 399 | struct dvb_frontend_parameters *param) |
| 400 | { |
| 401 | struct or51132_state* state = fe->demodulator_priv; |
| 402 | u8 buf[2]; |
| 403 | |
| 404 | /* Receiver Status */ |
| 405 | buf[0]=0x04; |
| 406 | buf[1]=0x00; |
| 407 | msleep(30); /* 30ms */ |
| 408 | if (i2c_writebytes(state,state->config->demod_address,buf,2)) { |
| 409 | printk(KERN_WARNING "or51132: get_parameters write error\n"); |
| 410 | return -EREMOTEIO; |
| 411 | } |
| 412 | msleep(30); /* 30ms */ |
| 413 | if (i2c_readbytes(state,state->config->demod_address,buf,2)) { |
| 414 | printk(KERN_WARNING "or51132: get_parameters read error\n"); |
| 415 | return -EREMOTEIO; |
| 416 | } |
| 417 | switch(buf[0]) { |
| 418 | case 0x06: param->u.vsb.modulation = VSB_8; break; |
| 419 | case 0x43: param->u.vsb.modulation = QAM_64; break; |
| 420 | case 0x45: param->u.vsb.modulation = QAM_256; break; |
| 421 | default: |
| 422 | printk(KERN_WARNING "or51132: unknown status 0x%02x\n", |
| 423 | buf[0]); |
| 424 | return -EREMOTEIO; |
| 425 | } |
| 426 | |
| 427 | /* FIXME: Read frequency from frontend, take AFC into account */ |
| 428 | param->frequency = state->current_frequency; |
| 429 | |
| 430 | /* FIXME: How to read inversion setting? Receiver 6 register? */ |
| 431 | param->inversion = INVERSION_AUTO; |
| 432 | |
| 433 | return 0; |
| 434 | } |
| 435 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 436 | static int or51132_read_status(struct dvb_frontend* fe, fe_status_t* status) |
| 437 | { |
Johannes Stezenbach | b874270 | 2005-05-16 21:54:31 -0700 | [diff] [blame] | 438 | struct or51132_state* state = fe->demodulator_priv; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 439 | unsigned char rec_buf[2]; |
| 440 | unsigned char snd_buf[2]; |
| 441 | *status = 0; |
| 442 | |
| 443 | /* Receiver Status */ |
| 444 | snd_buf[0]=0x04; |
| 445 | snd_buf[1]=0x00; |
| 446 | msleep(30); /* 30ms */ |
| 447 | if (i2c_writebytes(state,state->config->demod_address,snd_buf,2)) { |
| 448 | printk(KERN_WARNING "or51132: read_status write error\n"); |
| 449 | return -1; |
| 450 | } |
| 451 | msleep(30); /* 30ms */ |
| 452 | if (i2c_readbytes(state,state->config->demod_address,rec_buf,2)) { |
| 453 | printk(KERN_WARNING "or51132: read_status read error\n"); |
| 454 | return -1; |
| 455 | } |
| 456 | dprintk("read_status %x %x\n",rec_buf[0],rec_buf[1]); |
| 457 | |
| 458 | if (rec_buf[1] & 0x01) { /* Receiver Lock */ |
| 459 | *status |= FE_HAS_SIGNAL; |
| 460 | *status |= FE_HAS_CARRIER; |
| 461 | *status |= FE_HAS_VITERBI; |
| 462 | *status |= FE_HAS_SYNC; |
| 463 | *status |= FE_HAS_LOCK; |
| 464 | } |
| 465 | return 0; |
| 466 | } |
| 467 | |
| 468 | /* log10-1 table at .5 increments from 1 to 100.5 */ |
| 469 | static unsigned int i100x20log10[] = { |
| 470 | 0, 352, 602, 795, 954, 1088, 1204, 1306, 1397, 1480, |
| 471 | 1556, 1625, 1690, 1750, 1806, 1858, 1908, 1955, 2000, 2042, |
| 472 | 2082, 2121, 2158, 2193, 2227, 2260, 2292, 2322, 2352, 2380, |
| 473 | 2408, 2434, 2460, 2486, 2510, 2534, 2557, 2580, 2602, 2623, |
| 474 | 2644, 2664, 2684, 2704, 2723, 2742, 2760, 2778, 2795, 2813, |
| 475 | 2829, 2846, 2862, 2878, 2894, 2909, 2924, 2939, 2954, 2968, |
| 476 | 2982, 2996, 3010, 3023, 3037, 3050, 3062, 3075, 3088, 3100, |
| 477 | 3112, 3124, 3136, 3148, 3159, 3170, 3182, 3193, 3204, 3214, |
| 478 | 3225, 3236, 3246, 3256, 3266, 3276, 3286, 3296, 3306, 3316, |
| 479 | 3325, 3334, 3344, 3353, 3362, 3371, 3380, 3389, 3397, 3406, |
| 480 | 3415, 3423, 3432, 3440, 3448, 3456, 3464, 3472, 3480, 3488, |
| 481 | 3496, 3504, 3511, 3519, 3526, 3534, 3541, 3549, 3556, 3563, |
| 482 | 3570, 3577, 3584, 3591, 3598, 3605, 3612, 3619, 3625, 3632, |
| 483 | 3639, 3645, 3652, 3658, 3665, 3671, 3677, 3683, 3690, 3696, |
| 484 | 3702, 3708, 3714, 3720, 3726, 3732, 3738, 3744, 3750, 3755, |
| 485 | 3761, 3767, 3772, 3778, 3784, 3789, 3795, 3800, 3806, 3811, |
| 486 | 3816, 3822, 3827, 3832, 3838, 3843, 3848, 3853, 3858, 3863, |
| 487 | 3868, 3874, 3879, 3884, 3888, 3893, 3898, 3903, 3908, 3913, |
| 488 | 3918, 3922, 3927, 3932, 3936, 3941, 3946, 3950, 3955, 3960, |
| 489 | 3964, 3969, 3973, 3978, 3982, 3986, 3991, 3995, 4000, 4004, |
| 490 | }; |
| 491 | |
| 492 | static unsigned int denom[] = {1,1,100,1000,10000,100000,1000000,10000000,100000000}; |
| 493 | |
| 494 | static unsigned int i20Log10(unsigned short val) |
| 495 | { |
| 496 | unsigned int rntval = 100; |
| 497 | unsigned int tmp = val; |
| 498 | unsigned int exp = 1; |
| 499 | |
| 500 | while(tmp > 100) {tmp /= 100; exp++;} |
| 501 | |
| 502 | val = (2 * val)/denom[exp]; |
| 503 | if (exp > 1) rntval = 2000*exp; |
| 504 | |
| 505 | rntval += i100x20log10[val]; |
| 506 | return rntval; |
| 507 | } |
| 508 | |
| 509 | static int or51132_read_signal_strength(struct dvb_frontend* fe, u16* strength) |
| 510 | { |
Johannes Stezenbach | b874270 | 2005-05-16 21:54:31 -0700 | [diff] [blame] | 511 | struct or51132_state* state = fe->demodulator_priv; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 512 | unsigned char rec_buf[2]; |
| 513 | unsigned char snd_buf[2]; |
| 514 | u8 rcvr_stat; |
| 515 | u16 snr_equ; |
Johannes Stezenbach | b90ed91 | 2005-11-08 21:35:25 -0800 | [diff] [blame] | 516 | u32 signal_strength; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 517 | int usK; |
| 518 | |
| 519 | snd_buf[0]=0x04; |
| 520 | snd_buf[1]=0x02; /* SNR after Equalizer */ |
| 521 | msleep(30); /* 30ms */ |
| 522 | if (i2c_writebytes(state,state->config->demod_address,snd_buf,2)) { |
| 523 | printk(KERN_WARNING "or51132: read_status write error\n"); |
| 524 | return -1; |
| 525 | } |
| 526 | msleep(30); /* 30ms */ |
| 527 | if (i2c_readbytes(state,state->config->demod_address,rec_buf,2)) { |
| 528 | printk(KERN_WARNING "or51132: read_status read error\n"); |
| 529 | return -1; |
| 530 | } |
| 531 | snr_equ = rec_buf[0] | (rec_buf[1] << 8); |
| 532 | dprintk("read_signal_strength snr_equ %x %x (%i)\n",rec_buf[0],rec_buf[1],snr_equ); |
| 533 | |
| 534 | /* Receiver Status */ |
| 535 | snd_buf[0]=0x04; |
| 536 | snd_buf[1]=0x00; |
| 537 | msleep(30); /* 30ms */ |
| 538 | if (i2c_writebytes(state,state->config->demod_address,snd_buf,2)) { |
| 539 | printk(KERN_WARNING "or51132: read_signal_strength read_status write error\n"); |
| 540 | return -1; |
| 541 | } |
| 542 | msleep(30); /* 30ms */ |
| 543 | if (i2c_readbytes(state,state->config->demod_address,rec_buf,2)) { |
| 544 | printk(KERN_WARNING "or51132: read_signal_strength read_status read error\n"); |
| 545 | return -1; |
| 546 | } |
| 547 | dprintk("read_signal_strength read_status %x %x\n",rec_buf[0],rec_buf[1]); |
| 548 | rcvr_stat = rec_buf[1]; |
| 549 | usK = (rcvr_stat & 0x10) ? 3 : 0; |
| 550 | |
Mauro Carvalho Chehab | 9101e62 | 2005-12-12 00:37:24 -0800 | [diff] [blame] | 551 | /* The value reported back from the frontend will be FFFF=100% 0000=0% */ |
Johannes Stezenbach | b90ed91 | 2005-11-08 21:35:25 -0800 | [diff] [blame] | 552 | signal_strength = (((8952 - i20Log10(snr_equ) - usK*100)/3+5)*65535)/1000; |
| 553 | if (signal_strength > 0xffff) |
| 554 | *strength = 0xffff; |
| 555 | else |
| 556 | *strength = signal_strength; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 557 | dprintk("read_signal_strength %i\n",*strength); |
| 558 | |
| 559 | return 0; |
| 560 | } |
| 561 | |
| 562 | static int or51132_read_snr(struct dvb_frontend* fe, u16* snr) |
| 563 | { |
Johannes Stezenbach | b874270 | 2005-05-16 21:54:31 -0700 | [diff] [blame] | 564 | struct or51132_state* state = fe->demodulator_priv; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 565 | unsigned char rec_buf[2]; |
| 566 | unsigned char snd_buf[2]; |
| 567 | u16 snr_equ; |
| 568 | |
| 569 | snd_buf[0]=0x04; |
| 570 | snd_buf[1]=0x02; /* SNR after Equalizer */ |
| 571 | msleep(30); /* 30ms */ |
| 572 | if (i2c_writebytes(state,state->config->demod_address,snd_buf,2)) { |
| 573 | printk(KERN_WARNING "or51132: read_snr write error\n"); |
| 574 | return -1; |
| 575 | } |
| 576 | msleep(30); /* 30ms */ |
| 577 | if (i2c_readbytes(state,state->config->demod_address,rec_buf,2)) { |
| 578 | printk(KERN_WARNING "or51132: read_snr dvr read error\n"); |
| 579 | return -1; |
| 580 | } |
| 581 | snr_equ = rec_buf[0] | (rec_buf[1] << 8); |
| 582 | dprintk("read_snr snr_equ %x %x (%i)\n",rec_buf[0],rec_buf[1],snr_equ); |
| 583 | |
| 584 | *snr = 0xFFFF - snr_equ; |
| 585 | dprintk("read_snr %i\n",*snr); |
| 586 | |
| 587 | return 0; |
| 588 | } |
| 589 | |
| 590 | static int or51132_get_tune_settings(struct dvb_frontend* fe, struct dvb_frontend_tune_settings* fe_tune_settings) |
| 591 | { |
| 592 | fe_tune_settings->min_delay_ms = 500; |
| 593 | fe_tune_settings->step_size = 0; |
| 594 | fe_tune_settings->max_drift = 0; |
| 595 | |
| 596 | return 0; |
| 597 | } |
| 598 | |
| 599 | static void or51132_release(struct dvb_frontend* fe) |
| 600 | { |
Johannes Stezenbach | b874270 | 2005-05-16 21:54:31 -0700 | [diff] [blame] | 601 | struct or51132_state* state = fe->demodulator_priv; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 602 | kfree(state); |
| 603 | } |
| 604 | |
| 605 | static struct dvb_frontend_ops or51132_ops; |
| 606 | |
| 607 | struct dvb_frontend* or51132_attach(const struct or51132_config* config, |
| 608 | struct i2c_adapter* i2c) |
| 609 | { |
| 610 | struct or51132_state* state = NULL; |
| 611 | |
| 612 | /* Allocate memory for the internal state */ |
| 613 | state = kmalloc(sizeof(struct or51132_state), GFP_KERNEL); |
| 614 | if (state == NULL) |
| 615 | goto error; |
| 616 | |
| 617 | /* Setup the state */ |
| 618 | state->config = config; |
| 619 | state->i2c = i2c; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 620 | state->current_frequency = -1; |
| 621 | state->current_modulation = -1; |
| 622 | |
| 623 | /* Create dvb_frontend */ |
Patrick Boettcher | dea7486 | 2006-05-14 05:01:31 -0300 | [diff] [blame] | 624 | memcpy(&state->frontend.ops, &or51132_ops, sizeof(struct dvb_frontend_ops)); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 625 | state->frontend.demodulator_priv = state; |
| 626 | return &state->frontend; |
| 627 | |
| 628 | error: |
Jesper Juhl | 2ea7533 | 2005-11-07 01:01:31 -0800 | [diff] [blame] | 629 | kfree(state); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 630 | return NULL; |
| 631 | } |
| 632 | |
| 633 | static struct dvb_frontend_ops or51132_ops = { |
| 634 | |
| 635 | .info = { |
| 636 | .name = "Oren OR51132 VSB/QAM Frontend", |
Patrick Boettcher | dea7486 | 2006-05-14 05:01:31 -0300 | [diff] [blame] | 637 | .type = FE_ATSC, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 638 | .frequency_min = 44000000, |
| 639 | .frequency_max = 958000000, |
| 640 | .frequency_stepsize = 166666, |
| 641 | .caps = FE_CAN_FEC_1_2 | FE_CAN_FEC_2_3 | FE_CAN_FEC_3_4 | |
| 642 | FE_CAN_FEC_5_6 | FE_CAN_FEC_7_8 | FE_CAN_FEC_AUTO | |
| 643 | FE_CAN_QAM_64 | FE_CAN_QAM_256 | FE_CAN_QAM_AUTO | |
| 644 | FE_CAN_8VSB |
| 645 | }, |
| 646 | |
| 647 | .release = or51132_release, |
| 648 | |
| 649 | .init = or51132_init, |
| 650 | .sleep = or51132_sleep, |
| 651 | |
| 652 | .set_frontend = or51132_set_parameters, |
Trent Piepho | 0dbbc0a | 2006-04-06 06:03:09 -0300 | [diff] [blame] | 653 | .get_frontend = or51132_get_parameters, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 654 | .get_tune_settings = or51132_get_tune_settings, |
| 655 | |
| 656 | .read_status = or51132_read_status, |
| 657 | .read_ber = or51132_read_ber, |
| 658 | .read_signal_strength = or51132_read_signal_strength, |
| 659 | .read_snr = or51132_read_snr, |
| 660 | .read_ucblocks = or51132_read_ucblocks, |
| 661 | }; |
| 662 | |
| 663 | module_param(debug, int, 0644); |
| 664 | MODULE_PARM_DESC(debug, "Turn on/off frontend debugging (default:off)."); |
| 665 | |
| 666 | MODULE_DESCRIPTION("OR51132 ATSC [pcHDTV HD-3000] (8VSB & ITU J83 AnnexB FEC QAM64/256) Demodulator Driver"); |
| 667 | MODULE_AUTHOR("Kirk Lapray"); |
| 668 | MODULE_LICENSE("GPL"); |
| 669 | |
| 670 | EXPORT_SYMBOL(or51132_attach); |
| 671 | |
| 672 | /* |
| 673 | * Local variables: |
| 674 | * c-basic-offset: 8 |
| 675 | * End: |
| 676 | */ |