Antti Palosaari | 825b967 | 2008-09-15 15:01:52 -0300 | [diff] [blame] | 1 | /* |
| 2 | * DVB USB Linux driver for Afatech AF9015 DVB-T USB2.0 receiver |
| 3 | * |
| 4 | * Copyright (C) 2007 Antti Palosaari <crope@iki.fi> |
| 5 | * |
| 6 | * Thanks to Afatech who kindly provided information. |
| 7 | * |
| 8 | * This program is free software; you can redistribute it and/or modify |
| 9 | * it under the terms of the GNU General Public License as published by |
| 10 | * the Free Software Foundation; either version 2 of the License, or |
| 11 | * (at your option) any later version. |
| 12 | * |
| 13 | * This program is distributed in the hope that it will be useful, |
| 14 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 15 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 16 | * GNU General Public License for more details. |
| 17 | * |
| 18 | * You should have received a copy of the GNU General Public License |
| 19 | * along with this program; if not, write to the Free Software |
| 20 | * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. |
| 21 | * |
| 22 | */ |
| 23 | |
| 24 | #include <linux/kernel.h> |
| 25 | #include <linux/module.h> |
| 26 | #include <linux/moduleparam.h> |
| 27 | #include <linux/init.h> |
| 28 | #include <linux/delay.h> |
| 29 | #include <linux/string.h> |
| 30 | #include <linux/slab.h> |
| 31 | #include <linux/firmware.h> |
| 32 | |
| 33 | #include "dvb_frontend.h" |
| 34 | #include "af9013_priv.h" |
| 35 | #include "af9013.h" |
| 36 | |
| 37 | int af9013_debug; |
| 38 | |
| 39 | struct af9013_state { |
| 40 | struct i2c_adapter *i2c; |
| 41 | struct dvb_frontend frontend; |
| 42 | |
| 43 | struct af9013_config config; |
| 44 | |
| 45 | u16 signal_strength; |
| 46 | u32 ber; |
| 47 | u32 ucblocks; |
| 48 | u16 snr; |
| 49 | u32 frequency; |
| 50 | unsigned long next_statistics_check; |
| 51 | }; |
| 52 | |
| 53 | static u8 regmask[8] = { 0x01, 0x03, 0x07, 0x0f, 0x1f, 0x3f, 0x7f, 0xff }; |
| 54 | |
| 55 | static int af9013_write_regs(struct af9013_state *state, u8 mbox, u16 reg, |
| 56 | u8 *val, u8 len) |
| 57 | { |
| 58 | u8 buf[3+len]; |
| 59 | struct i2c_msg msg = { |
| 60 | .addr = state->config.demod_address, |
| 61 | .flags = 0, |
| 62 | .len = sizeof(buf), |
| 63 | .buf = buf }; |
| 64 | |
| 65 | buf[0] = reg >> 8; |
| 66 | buf[1] = reg & 0xff; |
| 67 | buf[2] = mbox; |
| 68 | memcpy(&buf[3], val, len); |
| 69 | |
| 70 | if (i2c_transfer(state->i2c, &msg, 1) != 1) { |
| 71 | warn("I2C write failed reg:%04x len:%d", reg, len); |
| 72 | return -EREMOTEIO; |
| 73 | } |
| 74 | return 0; |
| 75 | } |
| 76 | |
| 77 | static int af9013_write_ofdm_regs(struct af9013_state *state, u16 reg, u8 *val, |
| 78 | u8 len) |
| 79 | { |
| 80 | u8 mbox = (1 << 0)|(1 << 1)|((len - 1) << 2)|(0 << 6)|(0 << 7); |
| 81 | return af9013_write_regs(state, mbox, reg, val, len); |
| 82 | } |
| 83 | |
| 84 | static int af9013_write_ofsm_regs(struct af9013_state *state, u16 reg, u8 *val, |
| 85 | u8 len) |
| 86 | { |
| 87 | u8 mbox = (1 << 0)|(1 << 1)|((len - 1) << 2)|(1 << 6)|(1 << 7); |
| 88 | return af9013_write_regs(state, mbox, reg, val, len); |
| 89 | } |
| 90 | |
| 91 | /* write single register */ |
| 92 | static int af9013_write_reg(struct af9013_state *state, u16 reg, u8 val) |
| 93 | { |
| 94 | return af9013_write_ofdm_regs(state, reg, &val, 1); |
| 95 | } |
| 96 | |
| 97 | /* read single register */ |
| 98 | static int af9013_read_reg(struct af9013_state *state, u16 reg, u8 *val) |
| 99 | { |
| 100 | u8 obuf[3] = { reg >> 8, reg & 0xff, 0 }; |
| 101 | u8 ibuf[1]; |
| 102 | struct i2c_msg msg[2] = { |
| 103 | { |
| 104 | .addr = state->config.demod_address, |
| 105 | .flags = 0, |
| 106 | .len = sizeof(obuf), |
| 107 | .buf = obuf |
| 108 | }, { |
| 109 | .addr = state->config.demod_address, |
| 110 | .flags = I2C_M_RD, |
| 111 | .len = sizeof(ibuf), |
| 112 | .buf = ibuf |
| 113 | } |
| 114 | }; |
| 115 | |
| 116 | if (i2c_transfer(state->i2c, msg, 2) != 2) { |
| 117 | warn("I2C read failed reg:%04x", reg); |
| 118 | return -EREMOTEIO; |
| 119 | } |
| 120 | *val = ibuf[0]; |
| 121 | return 0; |
| 122 | } |
| 123 | |
| 124 | static int af9013_write_reg_bits(struct af9013_state *state, u16 reg, u8 pos, |
| 125 | u8 len, u8 val) |
| 126 | { |
| 127 | int ret; |
| 128 | u8 tmp, mask; |
| 129 | |
| 130 | ret = af9013_read_reg(state, reg, &tmp); |
| 131 | if (ret) |
| 132 | return ret; |
| 133 | |
| 134 | mask = regmask[len - 1] << pos; |
| 135 | tmp = (tmp & ~mask) | ((val << pos) & mask); |
| 136 | |
| 137 | return af9013_write_reg(state, reg, tmp); |
| 138 | } |
| 139 | |
| 140 | static int af9013_read_reg_bits(struct af9013_state *state, u16 reg, u8 pos, |
| 141 | u8 len, u8 *val) |
| 142 | { |
| 143 | int ret; |
| 144 | u8 tmp; |
| 145 | |
| 146 | ret = af9013_read_reg(state, reg, &tmp); |
| 147 | if (ret) |
| 148 | return ret; |
| 149 | *val = (tmp >> pos) & regmask[len - 1]; |
| 150 | return 0; |
| 151 | } |
| 152 | |
| 153 | static int af9013_set_gpio(struct af9013_state *state, u8 gpio, u8 gpioval) |
| 154 | { |
| 155 | int ret; |
| 156 | u8 pos; |
| 157 | u16 addr; |
| 158 | deb_info("%s: gpio:%d gpioval:%02x\n", __func__, gpio, gpioval); |
| 159 | |
| 160 | /* GPIO0 & GPIO1 0xd735 |
| 161 | GPIO2 & GPIO3 0xd736 */ |
| 162 | |
| 163 | switch (gpio) { |
| 164 | case 0: |
| 165 | case 1: |
| 166 | addr = 0xd735; |
| 167 | break; |
| 168 | case 2: |
| 169 | case 3: |
| 170 | addr = 0xd736; |
| 171 | break; |
| 172 | |
| 173 | default: |
| 174 | err("invalid gpio:%d\n", gpio); |
| 175 | ret = -EINVAL; |
| 176 | goto error; |
| 177 | }; |
| 178 | |
| 179 | switch (gpio) { |
| 180 | case 0: |
| 181 | case 2: |
| 182 | pos = 0; |
| 183 | break; |
| 184 | case 1: |
| 185 | case 3: |
| 186 | default: |
| 187 | pos = 4; |
| 188 | break; |
| 189 | }; |
| 190 | |
| 191 | ret = af9013_write_reg_bits(state, addr, pos, 4, gpioval); |
| 192 | |
| 193 | error: |
| 194 | return ret; |
| 195 | } |
| 196 | |
| 197 | static u32 af913_div(u32 a, u32 b, u32 x) |
| 198 | { |
| 199 | u32 r = 0, c = 0, i; |
| 200 | deb_info("%s: a:%d b:%d x:%d\n", __func__, a, b, x); |
| 201 | |
| 202 | if (a > b) { |
| 203 | c = a / b; |
| 204 | a = a - c * b; |
| 205 | } |
| 206 | |
| 207 | for (i = 0; i < x; i++) { |
| 208 | if (a >= b) { |
| 209 | r += 1; |
| 210 | a -= b; |
| 211 | } |
| 212 | a <<= 1; |
| 213 | r <<= 1; |
| 214 | } |
| 215 | r = (c << (u32)x) + r; |
| 216 | |
| 217 | deb_info("%s: a:%d b:%d x:%d r:%d r:%x\n", __func__, a, b, x, r, r); |
| 218 | return r; |
| 219 | } |
| 220 | |
| 221 | static int af9013_set_coeff(struct af9013_state *state, fe_bandwidth_t bw) |
| 222 | { |
| 223 | int ret = 0; |
| 224 | u8 i = 0; |
| 225 | u8 buf[24]; |
Mauro Carvalho Chehab | 4d54309 | 2008-12-29 23:18:31 -0300 | [diff] [blame] | 226 | u32 uninitialized_var(ns_coeff1_2048nu); |
| 227 | u32 uninitialized_var(ns_coeff1_8191nu); |
| 228 | u32 uninitialized_var(ns_coeff1_8192nu); |
| 229 | u32 uninitialized_var(ns_coeff1_8193nu); |
| 230 | u32 uninitialized_var(ns_coeff2_2k); |
| 231 | u32 uninitialized_var(ns_coeff2_8k); |
Antti Palosaari | 825b967 | 2008-09-15 15:01:52 -0300 | [diff] [blame] | 232 | |
| 233 | deb_info("%s: adc_clock:%d bw:%d\n", __func__, |
| 234 | state->config.adc_clock, bw); |
| 235 | |
| 236 | switch (state->config.adc_clock) { |
| 237 | case 28800: /* 28.800 MHz */ |
| 238 | switch (bw) { |
| 239 | case BANDWIDTH_6_MHZ: |
| 240 | ns_coeff1_2048nu = 0x01e79e7a; |
| 241 | ns_coeff1_8191nu = 0x0079eb6e; |
| 242 | ns_coeff1_8192nu = 0x0079e79e; |
| 243 | ns_coeff1_8193nu = 0x0079e3cf; |
| 244 | ns_coeff2_2k = 0x00f3cf3d; |
| 245 | ns_coeff2_8k = 0x003cf3cf; |
| 246 | break; |
| 247 | case BANDWIDTH_7_MHZ: |
| 248 | ns_coeff1_2048nu = 0x0238e38e; |
| 249 | ns_coeff1_8191nu = 0x008e3d55; |
| 250 | ns_coeff1_8192nu = 0x008e38e4; |
| 251 | ns_coeff1_8193nu = 0x008e3472; |
| 252 | ns_coeff2_2k = 0x011c71c7; |
| 253 | ns_coeff2_8k = 0x00471c72; |
| 254 | break; |
| 255 | case BANDWIDTH_8_MHZ: |
| 256 | ns_coeff1_2048nu = 0x028a28a3; |
| 257 | ns_coeff1_8191nu = 0x00a28f3d; |
| 258 | ns_coeff1_8192nu = 0x00a28a29; |
| 259 | ns_coeff1_8193nu = 0x00a28514; |
| 260 | ns_coeff2_2k = 0x01451451; |
| 261 | ns_coeff2_8k = 0x00514514; |
| 262 | break; |
| 263 | default: |
| 264 | ret = -EINVAL; |
| 265 | } |
| 266 | break; |
| 267 | case 20480: /* 20.480 MHz */ |
| 268 | switch (bw) { |
| 269 | case BANDWIDTH_6_MHZ: |
| 270 | ns_coeff1_2048nu = 0x02adb6dc; |
| 271 | ns_coeff1_8191nu = 0x00ab7313; |
| 272 | ns_coeff1_8192nu = 0x00ab6db7; |
| 273 | ns_coeff1_8193nu = 0x00ab685c; |
| 274 | ns_coeff2_2k = 0x0156db6e; |
| 275 | ns_coeff2_8k = 0x0055b6dc; |
| 276 | break; |
| 277 | case BANDWIDTH_7_MHZ: |
| 278 | ns_coeff1_2048nu = 0x03200001; |
| 279 | ns_coeff1_8191nu = 0x00c80640; |
| 280 | ns_coeff1_8192nu = 0x00c80000; |
| 281 | ns_coeff1_8193nu = 0x00c7f9c0; |
| 282 | ns_coeff2_2k = 0x01900000; |
| 283 | ns_coeff2_8k = 0x00640000; |
| 284 | break; |
| 285 | case BANDWIDTH_8_MHZ: |
| 286 | ns_coeff1_2048nu = 0x03924926; |
| 287 | ns_coeff1_8191nu = 0x00e4996e; |
| 288 | ns_coeff1_8192nu = 0x00e49249; |
| 289 | ns_coeff1_8193nu = 0x00e48b25; |
| 290 | ns_coeff2_2k = 0x01c92493; |
| 291 | ns_coeff2_8k = 0x00724925; |
| 292 | break; |
| 293 | default: |
| 294 | ret = -EINVAL; |
| 295 | } |
| 296 | break; |
| 297 | case 28000: /* 28.000 MHz */ |
| 298 | switch (bw) { |
| 299 | case BANDWIDTH_6_MHZ: |
| 300 | ns_coeff1_2048nu = 0x01f58d10; |
| 301 | ns_coeff1_8191nu = 0x007d672f; |
| 302 | ns_coeff1_8192nu = 0x007d6344; |
| 303 | ns_coeff1_8193nu = 0x007d5f59; |
| 304 | ns_coeff2_2k = 0x00fac688; |
| 305 | ns_coeff2_8k = 0x003eb1a2; |
| 306 | break; |
| 307 | case BANDWIDTH_7_MHZ: |
| 308 | ns_coeff1_2048nu = 0x02492492; |
| 309 | ns_coeff1_8191nu = 0x00924db7; |
| 310 | ns_coeff1_8192nu = 0x00924925; |
| 311 | ns_coeff1_8193nu = 0x00924492; |
| 312 | ns_coeff2_2k = 0x01249249; |
| 313 | ns_coeff2_8k = 0x00492492; |
| 314 | break; |
| 315 | case BANDWIDTH_8_MHZ: |
| 316 | ns_coeff1_2048nu = 0x029cbc15; |
| 317 | ns_coeff1_8191nu = 0x00a7343f; |
| 318 | ns_coeff1_8192nu = 0x00a72f05; |
| 319 | ns_coeff1_8193nu = 0x00a729cc; |
| 320 | ns_coeff2_2k = 0x014e5e0a; |
| 321 | ns_coeff2_8k = 0x00539783; |
| 322 | break; |
| 323 | default: |
| 324 | ret = -EINVAL; |
| 325 | } |
| 326 | break; |
| 327 | case 25000: /* 25.000 MHz */ |
| 328 | switch (bw) { |
| 329 | case BANDWIDTH_6_MHZ: |
| 330 | ns_coeff1_2048nu = 0x0231bcb5; |
| 331 | ns_coeff1_8191nu = 0x008c7391; |
| 332 | ns_coeff1_8192nu = 0x008c6f2d; |
| 333 | ns_coeff1_8193nu = 0x008c6aca; |
| 334 | ns_coeff2_2k = 0x0118de5b; |
| 335 | ns_coeff2_8k = 0x00463797; |
| 336 | break; |
| 337 | case BANDWIDTH_7_MHZ: |
| 338 | ns_coeff1_2048nu = 0x028f5c29; |
| 339 | ns_coeff1_8191nu = 0x00a3dc29; |
| 340 | ns_coeff1_8192nu = 0x00a3d70a; |
| 341 | ns_coeff1_8193nu = 0x00a3d1ec; |
| 342 | ns_coeff2_2k = 0x0147ae14; |
| 343 | ns_coeff2_8k = 0x0051eb85; |
| 344 | break; |
| 345 | case BANDWIDTH_8_MHZ: |
| 346 | ns_coeff1_2048nu = 0x02ecfb9d; |
| 347 | ns_coeff1_8191nu = 0x00bb44c1; |
| 348 | ns_coeff1_8192nu = 0x00bb3ee7; |
| 349 | ns_coeff1_8193nu = 0x00bb390d; |
| 350 | ns_coeff2_2k = 0x01767dce; |
| 351 | ns_coeff2_8k = 0x005d9f74; |
| 352 | break; |
| 353 | default: |
| 354 | ret = -EINVAL; |
| 355 | } |
| 356 | break; |
| 357 | default: |
| 358 | err("invalid xtal"); |
| 359 | return -EINVAL; |
| 360 | } |
| 361 | if (ret) { |
| 362 | err("invalid bandwidth"); |
| 363 | return ret; |
| 364 | } |
| 365 | |
| 366 | buf[i++] = (u8) ((ns_coeff1_2048nu & 0x03000000) >> 24); |
| 367 | buf[i++] = (u8) ((ns_coeff1_2048nu & 0x00ff0000) >> 16); |
| 368 | buf[i++] = (u8) ((ns_coeff1_2048nu & 0x0000ff00) >> 8); |
| 369 | buf[i++] = (u8) ((ns_coeff1_2048nu & 0x000000ff)); |
| 370 | buf[i++] = (u8) ((ns_coeff2_2k & 0x01c00000) >> 22); |
| 371 | buf[i++] = (u8) ((ns_coeff2_2k & 0x003fc000) >> 14); |
| 372 | buf[i++] = (u8) ((ns_coeff2_2k & 0x00003fc0) >> 6); |
| 373 | buf[i++] = (u8) ((ns_coeff2_2k & 0x0000003f)); |
| 374 | buf[i++] = (u8) ((ns_coeff1_8191nu & 0x03000000) >> 24); |
| 375 | buf[i++] = (u8) ((ns_coeff1_8191nu & 0x00ffc000) >> 16); |
| 376 | buf[i++] = (u8) ((ns_coeff1_8191nu & 0x0000ff00) >> 8); |
| 377 | buf[i++] = (u8) ((ns_coeff1_8191nu & 0x000000ff)); |
| 378 | buf[i++] = (u8) ((ns_coeff1_8192nu & 0x03000000) >> 24); |
| 379 | buf[i++] = (u8) ((ns_coeff1_8192nu & 0x00ffc000) >> 16); |
| 380 | buf[i++] = (u8) ((ns_coeff1_8192nu & 0x0000ff00) >> 8); |
| 381 | buf[i++] = (u8) ((ns_coeff1_8192nu & 0x000000ff)); |
| 382 | buf[i++] = (u8) ((ns_coeff1_8193nu & 0x03000000) >> 24); |
| 383 | buf[i++] = (u8) ((ns_coeff1_8193nu & 0x00ffc000) >> 16); |
| 384 | buf[i++] = (u8) ((ns_coeff1_8193nu & 0x0000ff00) >> 8); |
| 385 | buf[i++] = (u8) ((ns_coeff1_8193nu & 0x000000ff)); |
| 386 | buf[i++] = (u8) ((ns_coeff2_8k & 0x01c00000) >> 22); |
| 387 | buf[i++] = (u8) ((ns_coeff2_8k & 0x003fc000) >> 14); |
| 388 | buf[i++] = (u8) ((ns_coeff2_8k & 0x00003fc0) >> 6); |
| 389 | buf[i++] = (u8) ((ns_coeff2_8k & 0x0000003f)); |
| 390 | |
| 391 | deb_info("%s: coeff:", __func__); |
| 392 | debug_dump(buf, sizeof(buf), deb_info); |
| 393 | |
| 394 | /* program */ |
| 395 | for (i = 0; i < sizeof(buf); i++) { |
| 396 | ret = af9013_write_reg(state, 0xae00 + i, buf[i]); |
| 397 | if (ret) |
| 398 | break; |
| 399 | } |
| 400 | |
| 401 | return ret; |
| 402 | } |
| 403 | |
| 404 | static int af9013_set_adc_ctrl(struct af9013_state *state) |
| 405 | { |
| 406 | int ret; |
| 407 | u8 buf[3], tmp, i; |
| 408 | u32 adc_cw; |
| 409 | |
| 410 | deb_info("%s: adc_clock:%d\n", __func__, state->config.adc_clock); |
| 411 | |
| 412 | /* adc frequency type */ |
| 413 | switch (state->config.adc_clock) { |
| 414 | case 28800: /* 28.800 MHz */ |
| 415 | tmp = 0; |
| 416 | break; |
| 417 | case 20480: /* 20.480 MHz */ |
| 418 | tmp = 1; |
| 419 | break; |
| 420 | case 28000: /* 28.000 MHz */ |
| 421 | tmp = 2; |
| 422 | break; |
| 423 | case 25000: /* 25.000 MHz */ |
| 424 | tmp = 3; |
| 425 | break; |
| 426 | default: |
| 427 | err("invalid xtal"); |
| 428 | return -EINVAL; |
| 429 | } |
| 430 | |
| 431 | adc_cw = af913_div(state->config.adc_clock*1000, 1000000ul, 19ul); |
| 432 | |
| 433 | buf[0] = (u8) ((adc_cw & 0x000000ff)); |
| 434 | buf[1] = (u8) ((adc_cw & 0x0000ff00) >> 8); |
| 435 | buf[2] = (u8) ((adc_cw & 0x00ff0000) >> 16); |
| 436 | |
| 437 | deb_info("%s: adc_cw:", __func__); |
| 438 | debug_dump(buf, sizeof(buf), deb_info); |
| 439 | |
| 440 | /* program */ |
| 441 | for (i = 0; i < sizeof(buf); i++) { |
| 442 | ret = af9013_write_reg(state, 0xd180 + i, buf[i]); |
| 443 | if (ret) |
| 444 | goto error; |
| 445 | } |
| 446 | ret = af9013_write_reg_bits(state, 0x9bd2, 0, 4, tmp); |
| 447 | error: |
| 448 | return ret; |
| 449 | } |
| 450 | |
| 451 | static int af9013_set_freq_ctrl(struct af9013_state *state, fe_bandwidth_t bw) |
| 452 | { |
| 453 | int ret; |
| 454 | u16 addr; |
| 455 | u8 buf[3], i, j; |
| 456 | u32 adc_freq, freq_cw; |
| 457 | s8 bfs_spec_inv; |
| 458 | int if_sample_freq; |
| 459 | |
| 460 | for (j = 0; j < 3; j++) { |
| 461 | if (j == 0) { |
| 462 | addr = 0xd140; /* fcw normal */ |
| 463 | bfs_spec_inv = state->config.rf_spec_inv ? -1 : 1; |
| 464 | } else if (j == 1) { |
| 465 | addr = 0x9be7; /* fcw dummy ram */ |
| 466 | bfs_spec_inv = state->config.rf_spec_inv ? -1 : 1; |
| 467 | } else { |
| 468 | addr = 0x9bea; /* fcw inverted */ |
| 469 | bfs_spec_inv = state->config.rf_spec_inv ? 1 : -1; |
| 470 | } |
| 471 | |
| 472 | adc_freq = state->config.adc_clock * 1000; |
| 473 | if_sample_freq = state->config.tuner_if * 1000; |
| 474 | |
| 475 | /* TDA18271 uses different sampling freq for every bw */ |
| 476 | if (state->config.tuner == AF9013_TUNER_TDA18271) { |
| 477 | switch (bw) { |
| 478 | case BANDWIDTH_6_MHZ: |
| 479 | if_sample_freq = 3300000; /* 3.3 MHz */ |
| 480 | break; |
| 481 | case BANDWIDTH_7_MHZ: |
| 482 | if_sample_freq = 3800000; /* 3.8 MHz */ |
| 483 | break; |
| 484 | case BANDWIDTH_8_MHZ: |
| 485 | default: |
| 486 | if_sample_freq = 4300000; /* 4.3 MHz */ |
| 487 | break; |
| 488 | } |
| 489 | } |
| 490 | |
| 491 | while (if_sample_freq > (adc_freq / 2)) |
| 492 | if_sample_freq = if_sample_freq - adc_freq; |
| 493 | |
| 494 | if (if_sample_freq >= 0) |
| 495 | bfs_spec_inv = bfs_spec_inv * (-1); |
| 496 | else |
| 497 | if_sample_freq = if_sample_freq * (-1); |
| 498 | |
| 499 | freq_cw = af913_div(if_sample_freq, adc_freq, 23ul); |
| 500 | |
| 501 | if (bfs_spec_inv == -1) |
| 502 | freq_cw = 0x00800000 - freq_cw; |
| 503 | |
| 504 | buf[0] = (u8) ((freq_cw & 0x000000ff)); |
| 505 | buf[1] = (u8) ((freq_cw & 0x0000ff00) >> 8); |
| 506 | buf[2] = (u8) ((freq_cw & 0x007f0000) >> 16); |
| 507 | |
| 508 | |
| 509 | deb_info("%s: freq_cw:", __func__); |
| 510 | debug_dump(buf, sizeof(buf), deb_info); |
| 511 | |
| 512 | /* program */ |
| 513 | for (i = 0; i < sizeof(buf); i++) { |
| 514 | ret = af9013_write_reg(state, addr++, buf[i]); |
| 515 | if (ret) |
| 516 | goto error; |
| 517 | } |
| 518 | } |
| 519 | error: |
| 520 | return ret; |
| 521 | } |
| 522 | |
| 523 | static int af9013_set_ofdm_params(struct af9013_state *state, |
| 524 | struct dvb_ofdm_parameters *params, u8 *auto_mode) |
| 525 | { |
| 526 | int ret; |
| 527 | u8 i, buf[3] = {0, 0, 0}; |
| 528 | *auto_mode = 0; /* set if parameters are requested to auto set */ |
| 529 | |
| 530 | switch (params->transmission_mode) { |
| 531 | case TRANSMISSION_MODE_AUTO: |
| 532 | *auto_mode = 1; |
| 533 | case TRANSMISSION_MODE_2K: |
| 534 | break; |
| 535 | case TRANSMISSION_MODE_8K: |
| 536 | buf[0] |= (1 << 0); |
| 537 | break; |
| 538 | default: |
| 539 | return -EINVAL; |
| 540 | } |
| 541 | |
| 542 | switch (params->guard_interval) { |
| 543 | case GUARD_INTERVAL_AUTO: |
| 544 | *auto_mode = 1; |
| 545 | case GUARD_INTERVAL_1_32: |
| 546 | break; |
| 547 | case GUARD_INTERVAL_1_16: |
| 548 | buf[0] |= (1 << 2); |
| 549 | break; |
| 550 | case GUARD_INTERVAL_1_8: |
| 551 | buf[0] |= (2 << 2); |
| 552 | break; |
| 553 | case GUARD_INTERVAL_1_4: |
| 554 | buf[0] |= (3 << 2); |
| 555 | break; |
| 556 | default: |
| 557 | return -EINVAL; |
| 558 | } |
| 559 | |
| 560 | switch (params->hierarchy_information) { |
| 561 | case HIERARCHY_AUTO: |
| 562 | *auto_mode = 1; |
| 563 | case HIERARCHY_NONE: |
| 564 | break; |
| 565 | case HIERARCHY_1: |
| 566 | buf[0] |= (1 << 4); |
| 567 | break; |
| 568 | case HIERARCHY_2: |
| 569 | buf[0] |= (2 << 4); |
| 570 | break; |
| 571 | case HIERARCHY_4: |
| 572 | buf[0] |= (3 << 4); |
| 573 | break; |
| 574 | default: |
| 575 | return -EINVAL; |
| 576 | }; |
| 577 | |
| 578 | switch (params->constellation) { |
| 579 | case QAM_AUTO: |
| 580 | *auto_mode = 1; |
| 581 | case QPSK: |
| 582 | break; |
| 583 | case QAM_16: |
| 584 | buf[1] |= (1 << 6); |
| 585 | break; |
| 586 | case QAM_64: |
| 587 | buf[1] |= (2 << 6); |
| 588 | break; |
| 589 | default: |
| 590 | return -EINVAL; |
| 591 | } |
| 592 | |
| 593 | /* Use HP. How and which case we can switch to LP? */ |
| 594 | buf[1] |= (1 << 4); |
| 595 | |
| 596 | switch (params->code_rate_HP) { |
| 597 | case FEC_AUTO: |
| 598 | *auto_mode = 1; |
| 599 | case FEC_1_2: |
| 600 | break; |
| 601 | case FEC_2_3: |
| 602 | buf[2] |= (1 << 0); |
| 603 | break; |
| 604 | case FEC_3_4: |
| 605 | buf[2] |= (2 << 0); |
| 606 | break; |
| 607 | case FEC_5_6: |
| 608 | buf[2] |= (3 << 0); |
| 609 | break; |
| 610 | case FEC_7_8: |
| 611 | buf[2] |= (4 << 0); |
| 612 | break; |
| 613 | default: |
| 614 | return -EINVAL; |
| 615 | } |
| 616 | |
| 617 | switch (params->code_rate_LP) { |
| 618 | case FEC_AUTO: |
| 619 | /* if HIERARCHY_NONE and FEC_NONE then LP FEC is set to FEC_AUTO |
| 620 | by dvb_frontend.c for compatibility */ |
| 621 | if (params->hierarchy_information != HIERARCHY_NONE) |
| 622 | *auto_mode = 1; |
| 623 | case FEC_1_2: |
| 624 | break; |
| 625 | case FEC_2_3: |
| 626 | buf[2] |= (1 << 3); |
| 627 | break; |
| 628 | case FEC_3_4: |
| 629 | buf[2] |= (2 << 3); |
| 630 | break; |
| 631 | case FEC_5_6: |
| 632 | buf[2] |= (3 << 3); |
| 633 | break; |
| 634 | case FEC_7_8: |
| 635 | buf[2] |= (4 << 3); |
| 636 | break; |
| 637 | case FEC_NONE: |
| 638 | if (params->hierarchy_information == HIERARCHY_AUTO) |
| 639 | break; |
| 640 | default: |
| 641 | return -EINVAL; |
| 642 | } |
| 643 | |
| 644 | switch (params->bandwidth) { |
| 645 | case BANDWIDTH_6_MHZ: |
| 646 | break; |
| 647 | case BANDWIDTH_7_MHZ: |
| 648 | buf[1] |= (1 << 2); |
| 649 | break; |
| 650 | case BANDWIDTH_8_MHZ: |
| 651 | buf[1] |= (2 << 2); |
| 652 | break; |
| 653 | default: |
| 654 | return -EINVAL; |
| 655 | } |
| 656 | |
| 657 | /* program */ |
| 658 | for (i = 0; i < sizeof(buf); i++) { |
| 659 | ret = af9013_write_reg(state, 0xd3c0 + i, buf[i]); |
| 660 | if (ret) |
| 661 | break; |
| 662 | } |
| 663 | |
| 664 | return ret; |
| 665 | } |
| 666 | |
| 667 | static int af9013_reset(struct af9013_state *state, u8 sleep) |
| 668 | { |
| 669 | int ret; |
| 670 | u8 tmp, i; |
| 671 | deb_info("%s\n", __func__); |
| 672 | |
| 673 | /* enable OFDM reset */ |
| 674 | ret = af9013_write_reg_bits(state, 0xd417, 4, 1, 1); |
| 675 | if (ret) |
| 676 | goto error; |
| 677 | |
| 678 | /* start reset mechanism */ |
| 679 | ret = af9013_write_reg(state, 0xaeff, 1); |
| 680 | if (ret) |
| 681 | goto error; |
| 682 | |
| 683 | /* reset is done when bit 1 is set */ |
| 684 | for (i = 0; i < 150; i++) { |
| 685 | ret = af9013_read_reg_bits(state, 0xd417, 1, 1, &tmp); |
| 686 | if (ret) |
| 687 | goto error; |
| 688 | if (tmp) |
| 689 | break; /* reset done */ |
| 690 | msleep(10); |
| 691 | } |
| 692 | if (!tmp) |
| 693 | return -ETIMEDOUT; |
| 694 | |
| 695 | /* don't clear reset when going to sleep */ |
| 696 | if (!sleep) { |
| 697 | /* clear OFDM reset */ |
| 698 | ret = af9013_write_reg_bits(state, 0xd417, 1, 1, 0); |
| 699 | if (ret) |
| 700 | goto error; |
| 701 | |
| 702 | /* disable OFDM reset */ |
| 703 | ret = af9013_write_reg_bits(state, 0xd417, 4, 1, 0); |
| 704 | } |
| 705 | error: |
| 706 | return ret; |
| 707 | } |
| 708 | |
| 709 | static int af9013_power_ctrl(struct af9013_state *state, u8 onoff) |
| 710 | { |
| 711 | int ret; |
| 712 | deb_info("%s: onoff:%d\n", __func__, onoff); |
| 713 | |
| 714 | if (onoff) { |
| 715 | /* power on */ |
| 716 | ret = af9013_write_reg_bits(state, 0xd73a, 3, 1, 0); |
| 717 | if (ret) |
| 718 | goto error; |
| 719 | ret = af9013_write_reg_bits(state, 0xd417, 1, 1, 0); |
| 720 | if (ret) |
| 721 | goto error; |
| 722 | ret = af9013_write_reg_bits(state, 0xd417, 4, 1, 0); |
| 723 | } else { |
| 724 | /* power off */ |
| 725 | ret = af9013_reset(state, 1); |
| 726 | if (ret) |
| 727 | goto error; |
| 728 | ret = af9013_write_reg_bits(state, 0xd73a, 3, 1, 1); |
| 729 | } |
| 730 | error: |
| 731 | return ret; |
| 732 | } |
| 733 | |
| 734 | static int af9013_lock_led(struct af9013_state *state, u8 onoff) |
| 735 | { |
| 736 | deb_info("%s: onoff:%d\n", __func__, onoff); |
| 737 | |
| 738 | return af9013_write_reg_bits(state, 0xd730, 0, 1, onoff); |
| 739 | } |
| 740 | |
| 741 | static int af9013_set_frontend(struct dvb_frontend *fe, |
| 742 | struct dvb_frontend_parameters *params) |
| 743 | { |
| 744 | struct af9013_state *state = fe->demodulator_priv; |
| 745 | int ret; |
| 746 | u8 auto_mode; /* auto set TPS */ |
| 747 | |
| 748 | deb_info("%s: freq:%d bw:%d\n", __func__, params->frequency, |
| 749 | params->u.ofdm.bandwidth); |
| 750 | |
| 751 | state->frequency = params->frequency; |
| 752 | |
| 753 | /* program CFOE coefficients */ |
| 754 | ret = af9013_set_coeff(state, params->u.ofdm.bandwidth); |
| 755 | if (ret) |
| 756 | goto error; |
| 757 | |
| 758 | /* program frequency control */ |
| 759 | ret = af9013_set_freq_ctrl(state, params->u.ofdm.bandwidth); |
| 760 | if (ret) |
| 761 | goto error; |
| 762 | |
| 763 | /* clear TPS lock flag (inverted flag) */ |
| 764 | ret = af9013_write_reg_bits(state, 0xd330, 3, 1, 1); |
| 765 | if (ret) |
| 766 | goto error; |
| 767 | |
| 768 | /* clear MPEG2 lock flag */ |
| 769 | ret = af9013_write_reg_bits(state, 0xd507, 6, 1, 0); |
| 770 | if (ret) |
| 771 | goto error; |
| 772 | |
| 773 | /* empty channel function */ |
| 774 | ret = af9013_write_reg_bits(state, 0x9bfe, 0, 1, 0); |
| 775 | if (ret) |
| 776 | goto error; |
| 777 | |
| 778 | /* empty DVB-T channel function */ |
| 779 | ret = af9013_write_reg_bits(state, 0x9bc2, 0, 1, 0); |
| 780 | if (ret) |
| 781 | goto error; |
| 782 | |
| 783 | /* program tuner */ |
| 784 | if (fe->ops.tuner_ops.set_params) |
| 785 | fe->ops.tuner_ops.set_params(fe, params); |
| 786 | |
| 787 | /* program TPS and bandwidth, check if auto mode needed */ |
| 788 | ret = af9013_set_ofdm_params(state, ¶ms->u.ofdm, &auto_mode); |
| 789 | if (ret) |
| 790 | goto error; |
| 791 | |
| 792 | if (auto_mode) { |
| 793 | /* clear easy mode flag */ |
| 794 | ret = af9013_write_reg(state, 0xaefd, 0); |
| 795 | deb_info("%s: auto TPS\n", __func__); |
| 796 | } else { |
| 797 | /* set easy mode flag */ |
| 798 | ret = af9013_write_reg(state, 0xaefd, 1); |
| 799 | if (ret) |
| 800 | goto error; |
| 801 | ret = af9013_write_reg(state, 0xaefe, 0); |
| 802 | deb_info("%s: manual TPS\n", __func__); |
| 803 | } |
| 804 | if (ret) |
| 805 | goto error; |
| 806 | |
| 807 | /* everything is set, lets try to receive channel - OFSM GO! */ |
| 808 | ret = af9013_write_reg(state, 0xffff, 0); |
| 809 | if (ret) |
| 810 | goto error; |
| 811 | |
| 812 | error: |
| 813 | return ret; |
| 814 | } |
| 815 | |
| 816 | static int af9013_get_frontend(struct dvb_frontend *fe, |
| 817 | struct dvb_frontend_parameters *p) |
| 818 | { |
| 819 | struct af9013_state *state = fe->demodulator_priv; |
| 820 | int ret; |
| 821 | u8 i, buf[3]; |
| 822 | deb_info("%s\n", __func__); |
| 823 | |
| 824 | /* read TPS registers */ |
| 825 | for (i = 0; i < 3; i++) { |
| 826 | ret = af9013_read_reg(state, 0xd3c0 + i, &buf[i]); |
| 827 | if (ret) |
| 828 | goto error; |
| 829 | } |
| 830 | |
| 831 | switch ((buf[1] >> 6) & 3) { |
| 832 | case 0: |
| 833 | p->u.ofdm.constellation = QPSK; |
| 834 | break; |
| 835 | case 1: |
| 836 | p->u.ofdm.constellation = QAM_16; |
| 837 | break; |
| 838 | case 2: |
| 839 | p->u.ofdm.constellation = QAM_64; |
| 840 | break; |
| 841 | } |
| 842 | |
| 843 | switch ((buf[0] >> 0) & 3) { |
| 844 | case 0: |
| 845 | p->u.ofdm.transmission_mode = TRANSMISSION_MODE_2K; |
| 846 | break; |
| 847 | case 1: |
| 848 | p->u.ofdm.transmission_mode = TRANSMISSION_MODE_8K; |
| 849 | } |
| 850 | |
| 851 | switch ((buf[0] >> 2) & 3) { |
| 852 | case 0: |
| 853 | p->u.ofdm.guard_interval = GUARD_INTERVAL_1_32; |
| 854 | break; |
| 855 | case 1: |
| 856 | p->u.ofdm.guard_interval = GUARD_INTERVAL_1_16; |
| 857 | break; |
| 858 | case 2: |
| 859 | p->u.ofdm.guard_interval = GUARD_INTERVAL_1_8; |
| 860 | break; |
| 861 | case 3: |
| 862 | p->u.ofdm.guard_interval = GUARD_INTERVAL_1_4; |
| 863 | break; |
| 864 | } |
| 865 | |
| 866 | switch ((buf[0] >> 4) & 7) { |
| 867 | case 0: |
| 868 | p->u.ofdm.hierarchy_information = HIERARCHY_NONE; |
| 869 | break; |
| 870 | case 1: |
| 871 | p->u.ofdm.hierarchy_information = HIERARCHY_1; |
| 872 | break; |
| 873 | case 2: |
| 874 | p->u.ofdm.hierarchy_information = HIERARCHY_2; |
| 875 | break; |
| 876 | case 3: |
| 877 | p->u.ofdm.hierarchy_information = HIERARCHY_4; |
| 878 | break; |
| 879 | } |
| 880 | |
| 881 | switch ((buf[2] >> 0) & 7) { |
| 882 | case 0: |
| 883 | p->u.ofdm.code_rate_HP = FEC_1_2; |
| 884 | break; |
| 885 | case 1: |
| 886 | p->u.ofdm.code_rate_HP = FEC_2_3; |
| 887 | break; |
| 888 | case 2: |
| 889 | p->u.ofdm.code_rate_HP = FEC_3_4; |
| 890 | break; |
| 891 | case 3: |
| 892 | p->u.ofdm.code_rate_HP = FEC_5_6; |
| 893 | break; |
| 894 | case 4: |
| 895 | p->u.ofdm.code_rate_HP = FEC_7_8; |
| 896 | break; |
| 897 | } |
| 898 | |
| 899 | switch ((buf[2] >> 3) & 7) { |
| 900 | case 0: |
| 901 | p->u.ofdm.code_rate_LP = FEC_1_2; |
| 902 | break; |
| 903 | case 1: |
| 904 | p->u.ofdm.code_rate_LP = FEC_2_3; |
| 905 | break; |
| 906 | case 2: |
| 907 | p->u.ofdm.code_rate_LP = FEC_3_4; |
| 908 | break; |
| 909 | case 3: |
| 910 | p->u.ofdm.code_rate_LP = FEC_5_6; |
| 911 | break; |
| 912 | case 4: |
| 913 | p->u.ofdm.code_rate_LP = FEC_7_8; |
| 914 | break; |
| 915 | } |
| 916 | |
| 917 | switch ((buf[1] >> 2) & 3) { |
| 918 | case 0: |
| 919 | p->u.ofdm.bandwidth = BANDWIDTH_6_MHZ; |
| 920 | break; |
| 921 | case 1: |
| 922 | p->u.ofdm.bandwidth = BANDWIDTH_7_MHZ; |
| 923 | break; |
| 924 | case 2: |
| 925 | p->u.ofdm.bandwidth = BANDWIDTH_8_MHZ; |
| 926 | break; |
| 927 | } |
| 928 | |
| 929 | p->inversion = INVERSION_AUTO; |
| 930 | p->frequency = state->frequency; |
| 931 | |
| 932 | error: |
| 933 | return ret; |
| 934 | } |
| 935 | |
| 936 | static int af9013_update_ber_unc(struct dvb_frontend *fe) |
| 937 | { |
| 938 | struct af9013_state *state = fe->demodulator_priv; |
| 939 | int ret; |
| 940 | u8 buf[3], i; |
| 941 | u32 error_bit_count = 0; |
| 942 | u32 total_bit_count = 0; |
| 943 | u32 abort_packet_count = 0; |
Antti Palosaari | 825b967 | 2008-09-15 15:01:52 -0300 | [diff] [blame] | 944 | |
| 945 | state->ber = 0; |
| 946 | |
| 947 | /* check if error bit count is ready */ |
| 948 | ret = af9013_read_reg_bits(state, 0xd391, 4, 1, &buf[0]); |
| 949 | if (ret) |
| 950 | goto error; |
| 951 | if (!buf[0]) |
| 952 | goto exit; |
| 953 | |
| 954 | /* get RSD packet abort count */ |
| 955 | for (i = 0; i < 2; i++) { |
| 956 | ret = af9013_read_reg(state, 0xd38a + i, &buf[i]); |
| 957 | if (ret) |
| 958 | goto error; |
| 959 | } |
| 960 | abort_packet_count = (buf[1] << 8) + buf[0]; |
| 961 | |
| 962 | /* get error bit count */ |
| 963 | for (i = 0; i < 3; i++) { |
| 964 | ret = af9013_read_reg(state, 0xd387 + i, &buf[i]); |
| 965 | if (ret) |
| 966 | goto error; |
| 967 | } |
| 968 | error_bit_count = (buf[2] << 16) + (buf[1] << 8) + buf[0]; |
| 969 | error_bit_count = error_bit_count - abort_packet_count * 8 * 8; |
| 970 | |
| 971 | /* get used RSD counting period (10000 RSD packets used) */ |
| 972 | for (i = 0; i < 2; i++) { |
| 973 | ret = af9013_read_reg(state, 0xd385 + i, &buf[i]); |
| 974 | if (ret) |
| 975 | goto error; |
| 976 | } |
| 977 | total_bit_count = (buf[1] << 8) + buf[0]; |
| 978 | total_bit_count = total_bit_count - abort_packet_count; |
| 979 | total_bit_count = total_bit_count * 204 * 8; |
| 980 | |
Antti Palosaari | 28f947a | 2008-09-16 14:22:43 -0300 | [diff] [blame] | 981 | if (total_bit_count) |
| 982 | state->ber = error_bit_count * 1000000000 / total_bit_count; |
Antti Palosaari | 825b967 | 2008-09-15 15:01:52 -0300 | [diff] [blame] | 983 | |
| 984 | state->ucblocks += abort_packet_count; |
| 985 | |
| 986 | deb_info("%s: err bits:%d total bits:%d abort count:%d\n", __func__, |
| 987 | error_bit_count, total_bit_count, abort_packet_count); |
| 988 | |
| 989 | /* set BER counting range */ |
| 990 | ret = af9013_write_reg(state, 0xd385, 10000 & 0xff); |
| 991 | if (ret) |
| 992 | goto error; |
| 993 | ret = af9013_write_reg(state, 0xd386, 10000 >> 8); |
| 994 | if (ret) |
| 995 | goto error; |
| 996 | /* reset and start BER counter */ |
| 997 | ret = af9013_write_reg_bits(state, 0xd391, 4, 1, 1); |
| 998 | if (ret) |
| 999 | goto error; |
| 1000 | |
| 1001 | exit: |
| 1002 | error: |
| 1003 | return ret; |
| 1004 | } |
| 1005 | |
| 1006 | static int af9013_update_snr(struct dvb_frontend *fe) |
| 1007 | { |
| 1008 | struct af9013_state *state = fe->demodulator_priv; |
| 1009 | int ret; |
| 1010 | u8 buf[3], i, len; |
| 1011 | u32 quant = 0; |
Mauro Carvalho Chehab | 4d54309 | 2008-12-29 23:18:31 -0300 | [diff] [blame] | 1012 | struct snr_table *uninitialized_var(snr_table); |
Antti Palosaari | 825b967 | 2008-09-15 15:01:52 -0300 | [diff] [blame] | 1013 | |
| 1014 | /* check if quantizer ready (for snr) */ |
| 1015 | ret = af9013_read_reg_bits(state, 0xd2e1, 3, 1, &buf[0]); |
| 1016 | if (ret) |
| 1017 | goto error; |
| 1018 | if (buf[0]) { |
| 1019 | /* quantizer ready - read it */ |
| 1020 | for (i = 0; i < 3; i++) { |
| 1021 | ret = af9013_read_reg(state, 0xd2e3 + i, &buf[i]); |
| 1022 | if (ret) |
| 1023 | goto error; |
| 1024 | } |
| 1025 | quant = (buf[2] << 16) + (buf[1] << 8) + buf[0]; |
| 1026 | |
| 1027 | /* read current constellation */ |
| 1028 | ret = af9013_read_reg(state, 0xd3c1, &buf[0]); |
| 1029 | if (ret) |
| 1030 | goto error; |
| 1031 | |
| 1032 | switch ((buf[0] >> 6) & 3) { |
| 1033 | case 0: |
| 1034 | len = ARRAY_SIZE(qpsk_snr_table); |
| 1035 | snr_table = qpsk_snr_table; |
| 1036 | break; |
| 1037 | case 1: |
| 1038 | len = ARRAY_SIZE(qam16_snr_table); |
| 1039 | snr_table = qam16_snr_table; |
| 1040 | break; |
| 1041 | case 2: |
| 1042 | len = ARRAY_SIZE(qam64_snr_table); |
| 1043 | snr_table = qam64_snr_table; |
| 1044 | break; |
| 1045 | default: |
| 1046 | len = 0; |
| 1047 | break; |
| 1048 | } |
| 1049 | |
| 1050 | if (len) { |
| 1051 | for (i = 0; i < len; i++) { |
| 1052 | if (quant < snr_table[i].val) { |
| 1053 | state->snr = snr_table[i].snr * 10; |
| 1054 | break; |
| 1055 | } |
| 1056 | } |
| 1057 | } |
| 1058 | |
| 1059 | /* set quantizer super frame count */ |
| 1060 | ret = af9013_write_reg(state, 0xd2e2, 1); |
| 1061 | if (ret) |
| 1062 | goto error; |
| 1063 | |
| 1064 | /* check quantizer availability */ |
| 1065 | for (i = 0; i < 10; i++) { |
| 1066 | msleep(10); |
| 1067 | ret = af9013_read_reg_bits(state, 0xd2e6, 0, 1, |
| 1068 | &buf[0]); |
| 1069 | if (ret) |
| 1070 | goto error; |
| 1071 | if (!buf[0]) |
| 1072 | break; |
| 1073 | } |
| 1074 | |
| 1075 | /* reset quantizer */ |
| 1076 | ret = af9013_write_reg_bits(state, 0xd2e1, 3, 1, 1); |
| 1077 | if (ret) |
| 1078 | goto error; |
| 1079 | } |
| 1080 | |
| 1081 | error: |
| 1082 | return ret; |
| 1083 | } |
| 1084 | |
| 1085 | static int af9013_update_signal_strength(struct dvb_frontend *fe) |
| 1086 | { |
| 1087 | struct af9013_state *state = fe->demodulator_priv; |
| 1088 | int ret; |
| 1089 | u8 tmp0; |
| 1090 | u8 rf_gain, rf_50, rf_80, if_gain, if_50, if_80; |
| 1091 | int signal_strength; |
| 1092 | |
| 1093 | deb_info("%s\n", __func__); |
| 1094 | |
| 1095 | state->signal_strength = 0; |
| 1096 | |
| 1097 | ret = af9013_read_reg_bits(state, 0x9bee, 0, 1, &tmp0); |
| 1098 | if (ret) |
| 1099 | goto error; |
| 1100 | if (tmp0) { |
| 1101 | ret = af9013_read_reg(state, 0x9bbd, &rf_50); |
| 1102 | if (ret) |
| 1103 | goto error; |
| 1104 | ret = af9013_read_reg(state, 0x9bd0, &rf_80); |
| 1105 | if (ret) |
| 1106 | goto error; |
| 1107 | ret = af9013_read_reg(state, 0x9be2, &if_50); |
| 1108 | if (ret) |
| 1109 | goto error; |
| 1110 | ret = af9013_read_reg(state, 0x9be4, &if_80); |
| 1111 | if (ret) |
| 1112 | goto error; |
| 1113 | ret = af9013_read_reg(state, 0xd07c, &rf_gain); |
| 1114 | if (ret) |
| 1115 | goto error; |
| 1116 | ret = af9013_read_reg(state, 0xd07d, &if_gain); |
| 1117 | if (ret) |
| 1118 | goto error; |
| 1119 | signal_strength = (0xffff / (9 * (rf_50 + if_50) - \ |
| 1120 | 11 * (rf_80 + if_80))) * (10 * (rf_gain + if_gain) - \ |
| 1121 | 11 * (rf_80 + if_80)); |
| 1122 | if (signal_strength < 0) |
| 1123 | signal_strength = 0; |
| 1124 | else if (signal_strength > 0xffff) |
| 1125 | signal_strength = 0xffff; |
| 1126 | |
| 1127 | state->signal_strength = signal_strength; |
| 1128 | } |
| 1129 | |
| 1130 | error: |
| 1131 | return ret; |
| 1132 | } |
| 1133 | |
| 1134 | static int af9013_update_statistics(struct dvb_frontend *fe) |
| 1135 | { |
| 1136 | struct af9013_state *state = fe->demodulator_priv; |
| 1137 | int ret; |
| 1138 | |
| 1139 | if (time_before(jiffies, state->next_statistics_check)) |
| 1140 | return 0; |
| 1141 | |
| 1142 | /* set minimum statistic update interval */ |
| 1143 | state->next_statistics_check = jiffies + msecs_to_jiffies(1200); |
| 1144 | |
| 1145 | ret = af9013_update_signal_strength(fe); |
| 1146 | if (ret) |
| 1147 | goto error; |
| 1148 | ret = af9013_update_snr(fe); |
| 1149 | if (ret) |
| 1150 | goto error; |
| 1151 | ret = af9013_update_ber_unc(fe); |
| 1152 | if (ret) |
| 1153 | goto error; |
| 1154 | |
| 1155 | error: |
| 1156 | return ret; |
| 1157 | } |
| 1158 | |
| 1159 | static int af9013_get_tune_settings(struct dvb_frontend *fe, |
| 1160 | struct dvb_frontend_tune_settings *fesettings) |
| 1161 | { |
| 1162 | fesettings->min_delay_ms = 800; |
| 1163 | fesettings->step_size = 0; |
| 1164 | fesettings->max_drift = 0; |
| 1165 | |
| 1166 | return 0; |
| 1167 | } |
| 1168 | |
| 1169 | static int af9013_read_status(struct dvb_frontend *fe, fe_status_t *status) |
| 1170 | { |
| 1171 | struct af9013_state *state = fe->demodulator_priv; |
| 1172 | int ret = 0; |
| 1173 | u8 tmp; |
| 1174 | *status = 0; |
| 1175 | |
| 1176 | /* TPS lock */ |
| 1177 | ret = af9013_read_reg_bits(state, 0xd330, 3, 1, &tmp); |
| 1178 | if (ret) |
| 1179 | goto error; |
| 1180 | if (tmp) |
| 1181 | *status |= FE_HAS_VITERBI | FE_HAS_CARRIER | FE_HAS_SIGNAL; |
| 1182 | |
| 1183 | /* MPEG2 lock */ |
| 1184 | ret = af9013_read_reg_bits(state, 0xd507, 6, 1, &tmp); |
| 1185 | if (ret) |
| 1186 | goto error; |
| 1187 | if (tmp) |
| 1188 | *status |= FE_HAS_SYNC | FE_HAS_LOCK; |
| 1189 | |
roel kluin | 891bd13 | 2008-11-04 11:32:59 -0300 | [diff] [blame] | 1190 | if (!(*status & FE_HAS_SIGNAL)) { |
Antti Palosaari | 825b967 | 2008-09-15 15:01:52 -0300 | [diff] [blame] | 1191 | /* AGC lock */ |
| 1192 | ret = af9013_read_reg_bits(state, 0xd1a0, 6, 1, &tmp); |
| 1193 | if (ret) |
| 1194 | goto error; |
| 1195 | if (tmp) |
| 1196 | *status |= FE_HAS_SIGNAL; |
| 1197 | } |
| 1198 | |
roel kluin | 891bd13 | 2008-11-04 11:32:59 -0300 | [diff] [blame] | 1199 | if (!(*status & FE_HAS_CARRIER)) { |
Antti Palosaari | 825b967 | 2008-09-15 15:01:52 -0300 | [diff] [blame] | 1200 | /* CFO lock */ |
| 1201 | ret = af9013_read_reg_bits(state, 0xd333, 7, 1, &tmp); |
| 1202 | if (ret) |
| 1203 | goto error; |
| 1204 | if (tmp) |
| 1205 | *status |= FE_HAS_CARRIER; |
| 1206 | } |
| 1207 | |
roel kluin | 891bd13 | 2008-11-04 11:32:59 -0300 | [diff] [blame] | 1208 | if (!(*status & FE_HAS_CARRIER)) { |
Antti Palosaari | 825b967 | 2008-09-15 15:01:52 -0300 | [diff] [blame] | 1209 | /* SFOE lock */ |
| 1210 | ret = af9013_read_reg_bits(state, 0xd334, 6, 1, &tmp); |
| 1211 | if (ret) |
| 1212 | goto error; |
| 1213 | if (tmp) |
| 1214 | *status |= FE_HAS_CARRIER; |
| 1215 | } |
| 1216 | |
| 1217 | ret = af9013_update_statistics(fe); |
| 1218 | |
| 1219 | error: |
| 1220 | return ret; |
| 1221 | } |
| 1222 | |
| 1223 | |
| 1224 | static int af9013_read_ber(struct dvb_frontend *fe, u32 *ber) |
| 1225 | { |
| 1226 | struct af9013_state *state = fe->demodulator_priv; |
| 1227 | int ret; |
| 1228 | ret = af9013_update_statistics(fe); |
| 1229 | *ber = state->ber; |
| 1230 | return ret; |
| 1231 | } |
| 1232 | |
| 1233 | static int af9013_read_signal_strength(struct dvb_frontend *fe, u16 *strength) |
| 1234 | { |
| 1235 | struct af9013_state *state = fe->demodulator_priv; |
| 1236 | int ret; |
| 1237 | ret = af9013_update_statistics(fe); |
| 1238 | *strength = state->signal_strength; |
| 1239 | return ret; |
| 1240 | } |
| 1241 | |
| 1242 | static int af9013_read_snr(struct dvb_frontend *fe, u16 *snr) |
| 1243 | { |
| 1244 | struct af9013_state *state = fe->demodulator_priv; |
| 1245 | int ret; |
| 1246 | ret = af9013_update_statistics(fe); |
| 1247 | *snr = state->snr; |
| 1248 | return ret; |
| 1249 | } |
| 1250 | |
| 1251 | static int af9013_read_ucblocks(struct dvb_frontend *fe, u32 *ucblocks) |
| 1252 | { |
| 1253 | struct af9013_state *state = fe->demodulator_priv; |
| 1254 | int ret; |
| 1255 | ret = af9013_update_statistics(fe); |
| 1256 | *ucblocks = state->ucblocks; |
| 1257 | return ret; |
| 1258 | } |
| 1259 | |
| 1260 | static int af9013_sleep(struct dvb_frontend *fe) |
| 1261 | { |
| 1262 | struct af9013_state *state = fe->demodulator_priv; |
| 1263 | int ret; |
| 1264 | deb_info("%s\n", __func__); |
| 1265 | |
| 1266 | ret = af9013_lock_led(state, 0); |
| 1267 | if (ret) |
| 1268 | goto error; |
| 1269 | |
| 1270 | ret = af9013_power_ctrl(state, 0); |
| 1271 | error: |
| 1272 | return ret; |
| 1273 | } |
| 1274 | |
| 1275 | static int af9013_init(struct dvb_frontend *fe) |
| 1276 | { |
| 1277 | struct af9013_state *state = fe->demodulator_priv; |
| 1278 | int ret, i, len; |
| 1279 | u8 tmp0, tmp1; |
| 1280 | struct regdesc *init; |
| 1281 | deb_info("%s\n", __func__); |
| 1282 | |
| 1283 | /* reset OFDM */ |
| 1284 | ret = af9013_reset(state, 0); |
| 1285 | if (ret) |
| 1286 | goto error; |
| 1287 | |
| 1288 | /* power on */ |
| 1289 | ret = af9013_power_ctrl(state, 1); |
| 1290 | if (ret) |
| 1291 | goto error; |
| 1292 | |
| 1293 | /* enable ADC */ |
| 1294 | ret = af9013_write_reg(state, 0xd73a, 0xa4); |
| 1295 | if (ret) |
| 1296 | goto error; |
| 1297 | |
| 1298 | /* write API version to firmware */ |
| 1299 | for (i = 0; i < sizeof(state->config.api_version); i++) { |
| 1300 | ret = af9013_write_reg(state, 0x9bf2 + i, |
| 1301 | state->config.api_version[i]); |
| 1302 | if (ret) |
| 1303 | goto error; |
| 1304 | } |
| 1305 | |
| 1306 | /* program ADC control */ |
| 1307 | ret = af9013_set_adc_ctrl(state); |
| 1308 | if (ret) |
| 1309 | goto error; |
| 1310 | |
| 1311 | /* set I2C master clock */ |
| 1312 | ret = af9013_write_reg(state, 0xd416, 0x14); |
| 1313 | if (ret) |
| 1314 | goto error; |
| 1315 | |
| 1316 | /* set 16 embx */ |
| 1317 | ret = af9013_write_reg_bits(state, 0xd700, 1, 1, 1); |
| 1318 | if (ret) |
| 1319 | goto error; |
| 1320 | |
| 1321 | /* set no trigger */ |
| 1322 | ret = af9013_write_reg_bits(state, 0xd700, 2, 1, 0); |
| 1323 | if (ret) |
| 1324 | goto error; |
| 1325 | |
| 1326 | /* set read-update bit for constellation */ |
| 1327 | ret = af9013_write_reg_bits(state, 0xd371, 1, 1, 1); |
| 1328 | if (ret) |
| 1329 | goto error; |
| 1330 | |
| 1331 | /* enable FEC monitor */ |
| 1332 | ret = af9013_write_reg_bits(state, 0xd392, 1, 1, 1); |
| 1333 | if (ret) |
| 1334 | goto error; |
| 1335 | |
| 1336 | /* load OFSM settings */ |
| 1337 | deb_info("%s: load ofsm settings\n", __func__); |
| 1338 | len = ARRAY_SIZE(ofsm_init); |
| 1339 | init = ofsm_init; |
| 1340 | for (i = 0; i < len; i++) { |
| 1341 | ret = af9013_write_reg_bits(state, init[i].addr, init[i].pos, |
| 1342 | init[i].len, init[i].val); |
| 1343 | if (ret) |
| 1344 | goto error; |
| 1345 | } |
| 1346 | |
| 1347 | /* load tuner specific settings */ |
| 1348 | deb_info("%s: load tuner specific settings\n", __func__); |
| 1349 | switch (state->config.tuner) { |
| 1350 | case AF9013_TUNER_MXL5003D: |
| 1351 | len = ARRAY_SIZE(tuner_init_mxl5003d); |
| 1352 | init = tuner_init_mxl5003d; |
| 1353 | break; |
| 1354 | case AF9013_TUNER_MXL5005D: |
| 1355 | case AF9013_TUNER_MXL5005R: |
| 1356 | len = ARRAY_SIZE(tuner_init_mxl5005); |
| 1357 | init = tuner_init_mxl5005; |
| 1358 | break; |
| 1359 | case AF9013_TUNER_ENV77H11D5: |
| 1360 | len = ARRAY_SIZE(tuner_init_env77h11d5); |
| 1361 | init = tuner_init_env77h11d5; |
| 1362 | break; |
| 1363 | case AF9013_TUNER_MT2060: |
| 1364 | len = ARRAY_SIZE(tuner_init_mt2060); |
| 1365 | init = tuner_init_mt2060; |
| 1366 | break; |
| 1367 | case AF9013_TUNER_MC44S803: |
| 1368 | len = ARRAY_SIZE(tuner_init_mc44s803); |
| 1369 | init = tuner_init_mc44s803; |
| 1370 | break; |
| 1371 | case AF9013_TUNER_QT1010: |
| 1372 | case AF9013_TUNER_QT1010A: |
| 1373 | len = ARRAY_SIZE(tuner_init_qt1010); |
| 1374 | init = tuner_init_qt1010; |
| 1375 | break; |
| 1376 | case AF9013_TUNER_MT2060_2: |
| 1377 | len = ARRAY_SIZE(tuner_init_mt2060_2); |
| 1378 | init = tuner_init_mt2060_2; |
| 1379 | break; |
| 1380 | case AF9013_TUNER_TDA18271: |
| 1381 | len = ARRAY_SIZE(tuner_init_tda18271); |
| 1382 | init = tuner_init_tda18271; |
| 1383 | break; |
| 1384 | case AF9013_TUNER_UNKNOWN: |
| 1385 | default: |
| 1386 | len = ARRAY_SIZE(tuner_init_unknown); |
| 1387 | init = tuner_init_unknown; |
| 1388 | break; |
| 1389 | } |
| 1390 | |
| 1391 | for (i = 0; i < len; i++) { |
| 1392 | ret = af9013_write_reg_bits(state, init[i].addr, init[i].pos, |
| 1393 | init[i].len, init[i].val); |
| 1394 | if (ret) |
| 1395 | goto error; |
| 1396 | } |
| 1397 | |
| 1398 | /* set TS mode */ |
| 1399 | deb_info("%s: setting ts mode\n", __func__); |
| 1400 | tmp0 = 0; /* parallel mode */ |
| 1401 | tmp1 = 0; /* serial mode */ |
| 1402 | switch (state->config.output_mode) { |
| 1403 | case AF9013_OUTPUT_MODE_PARALLEL: |
| 1404 | tmp0 = 1; |
| 1405 | break; |
| 1406 | case AF9013_OUTPUT_MODE_SERIAL: |
| 1407 | tmp1 = 1; |
| 1408 | break; |
| 1409 | case AF9013_OUTPUT_MODE_USB: |
| 1410 | /* usb mode for AF9015 */ |
| 1411 | default: |
| 1412 | break; |
| 1413 | } |
| 1414 | ret = af9013_write_reg_bits(state, 0xd500, 1, 1, tmp0); /* parallel */ |
| 1415 | if (ret) |
| 1416 | goto error; |
| 1417 | ret = af9013_write_reg_bits(state, 0xd500, 2, 1, tmp1); /* serial */ |
| 1418 | if (ret) |
| 1419 | goto error; |
| 1420 | |
| 1421 | /* enable lock led */ |
| 1422 | ret = af9013_lock_led(state, 1); |
| 1423 | if (ret) |
| 1424 | goto error; |
| 1425 | |
| 1426 | error: |
| 1427 | return ret; |
| 1428 | } |
| 1429 | |
| 1430 | static struct dvb_frontend_ops af9013_ops; |
| 1431 | |
| 1432 | static int af9013_download_firmware(struct af9013_state *state) |
| 1433 | { |
| 1434 | int i, len, packets, remainder, ret; |
| 1435 | const struct firmware *fw; |
| 1436 | u16 addr = 0x5100; /* firmware start address */ |
| 1437 | u16 checksum = 0; |
| 1438 | u8 val; |
| 1439 | u8 fw_params[4]; |
| 1440 | u8 *data; |
| 1441 | u8 *fw_file = AF9013_DEFAULT_FIRMWARE; |
| 1442 | |
| 1443 | msleep(100); |
| 1444 | /* check whether firmware is already running */ |
| 1445 | ret = af9013_read_reg(state, 0x98be, &val); |
| 1446 | if (ret) |
| 1447 | goto error; |
| 1448 | else |
| 1449 | deb_info("%s: firmware status:%02x\n", __func__, val); |
| 1450 | |
| 1451 | if (val == 0x0c) /* fw is running, no need for download */ |
| 1452 | goto exit; |
| 1453 | |
| 1454 | info("found a '%s' in cold state, will try to load a firmware", |
| 1455 | af9013_ops.info.name); |
| 1456 | |
| 1457 | /* request the firmware, this will block and timeout */ |
Jean Delvare | e978525 | 2009-04-26 05:43:59 -0300 | [diff] [blame] | 1458 | ret = request_firmware(&fw, fw_file, state->i2c->dev.parent); |
Antti Palosaari | 825b967 | 2008-09-15 15:01:52 -0300 | [diff] [blame] | 1459 | if (ret) { |
| 1460 | err("did not find the firmware file. (%s) " |
| 1461 | "Please see linux/Documentation/dvb/ for more details" \ |
| 1462 | " on firmware-problems. (%d)", |
| 1463 | fw_file, ret); |
| 1464 | goto error; |
| 1465 | } |
| 1466 | |
| 1467 | info("downloading firmware from file '%s'", fw_file); |
| 1468 | |
| 1469 | /* calc checksum */ |
| 1470 | for (i = 0; i < fw->size; i++) |
| 1471 | checksum += fw->data[i]; |
| 1472 | |
| 1473 | fw_params[0] = checksum >> 8; |
| 1474 | fw_params[1] = checksum & 0xff; |
| 1475 | fw_params[2] = fw->size >> 8; |
| 1476 | fw_params[3] = fw->size & 0xff; |
| 1477 | |
| 1478 | /* write fw checksum & size */ |
| 1479 | ret = af9013_write_ofsm_regs(state, 0x50fc, |
| 1480 | fw_params, sizeof(fw_params)); |
| 1481 | if (ret) |
| 1482 | goto error_release; |
| 1483 | |
| 1484 | #define FW_PACKET_MAX_DATA 16 |
| 1485 | |
| 1486 | packets = fw->size / FW_PACKET_MAX_DATA; |
| 1487 | remainder = fw->size % FW_PACKET_MAX_DATA; |
| 1488 | len = FW_PACKET_MAX_DATA; |
| 1489 | for (i = 0; i <= packets; i++) { |
| 1490 | if (i == packets) /* set size of the last packet */ |
| 1491 | len = remainder; |
| 1492 | |
Antti Palosaari | 541dfa8 | 2008-10-06 13:57:45 -0300 | [diff] [blame] | 1493 | data = (u8 *)(fw->data + i * FW_PACKET_MAX_DATA); |
Antti Palosaari | 825b967 | 2008-09-15 15:01:52 -0300 | [diff] [blame] | 1494 | ret = af9013_write_ofsm_regs(state, addr, data, len); |
| 1495 | addr += FW_PACKET_MAX_DATA; |
| 1496 | |
| 1497 | if (ret) { |
| 1498 | err("firmware download failed at %d with %d", i, ret); |
| 1499 | goto error_release; |
| 1500 | } |
| 1501 | } |
| 1502 | |
Antti Palosaari | 825b967 | 2008-09-15 15:01:52 -0300 | [diff] [blame] | 1503 | /* request boot firmware */ |
| 1504 | ret = af9013_write_reg(state, 0xe205, 1); |
| 1505 | if (ret) |
| 1506 | goto error_release; |
| 1507 | |
| 1508 | for (i = 0; i < 15; i++) { |
| 1509 | msleep(100); |
| 1510 | |
| 1511 | /* check firmware status */ |
| 1512 | ret = af9013_read_reg(state, 0x98be, &val); |
| 1513 | if (ret) |
| 1514 | goto error_release; |
| 1515 | |
| 1516 | deb_info("%s: firmware status:%02x\n", __func__, val); |
| 1517 | |
| 1518 | if (val == 0x0c || val == 0x04) /* success or fail */ |
| 1519 | break; |
| 1520 | } |
| 1521 | |
| 1522 | if (val == 0x04) { |
| 1523 | err("firmware did not run"); |
| 1524 | ret = -1; |
| 1525 | } else if (val != 0x0c) { |
| 1526 | err("firmware boot timeout"); |
| 1527 | ret = -1; |
| 1528 | } |
| 1529 | |
| 1530 | error_release: |
| 1531 | release_firmware(fw); |
| 1532 | error: |
| 1533 | exit: |
| 1534 | if (!ret) |
| 1535 | info("found a '%s' in warm state.", af9013_ops.info.name); |
| 1536 | return ret; |
| 1537 | } |
| 1538 | |
| 1539 | static int af9013_i2c_gate_ctrl(struct dvb_frontend *fe, int enable) |
| 1540 | { |
| 1541 | int ret; |
| 1542 | struct af9013_state *state = fe->demodulator_priv; |
| 1543 | deb_info("%s: enable:%d\n", __func__, enable); |
| 1544 | |
| 1545 | if (state->config.output_mode == AF9013_OUTPUT_MODE_USB) |
| 1546 | ret = af9013_write_reg_bits(state, 0xd417, 3, 1, enable); |
| 1547 | else |
| 1548 | ret = af9013_write_reg_bits(state, 0xd607, 2, 1, enable); |
| 1549 | |
| 1550 | return ret; |
| 1551 | } |
| 1552 | |
| 1553 | static void af9013_release(struct dvb_frontend *fe) |
| 1554 | { |
| 1555 | struct af9013_state *state = fe->demodulator_priv; |
| 1556 | kfree(state); |
| 1557 | } |
| 1558 | |
| 1559 | static struct dvb_frontend_ops af9013_ops; |
| 1560 | |
| 1561 | struct dvb_frontend *af9013_attach(const struct af9013_config *config, |
| 1562 | struct i2c_adapter *i2c) |
| 1563 | { |
| 1564 | int ret; |
| 1565 | struct af9013_state *state = NULL; |
| 1566 | u8 buf[3], i; |
| 1567 | |
| 1568 | /* allocate memory for the internal state */ |
| 1569 | state = kzalloc(sizeof(struct af9013_state), GFP_KERNEL); |
| 1570 | if (state == NULL) |
| 1571 | goto error; |
| 1572 | |
| 1573 | /* setup the state */ |
| 1574 | state->i2c = i2c; |
| 1575 | memcpy(&state->config, config, sizeof(struct af9013_config)); |
| 1576 | |
| 1577 | /* chip version */ |
| 1578 | ret = af9013_read_reg_bits(state, 0xd733, 4, 4, &buf[2]); |
| 1579 | if (ret) |
| 1580 | goto error; |
| 1581 | |
| 1582 | /* ROM version */ |
| 1583 | for (i = 0; i < 2; i++) { |
| 1584 | ret = af9013_read_reg(state, 0x116b + i, &buf[i]); |
| 1585 | if (ret) |
| 1586 | goto error; |
| 1587 | } |
| 1588 | deb_info("%s: chip version:%d ROM version:%d.%d\n", __func__, |
| 1589 | buf[2], buf[0], buf[1]); |
| 1590 | |
| 1591 | /* download firmware */ |
| 1592 | if (state->config.output_mode != AF9013_OUTPUT_MODE_USB) { |
| 1593 | ret = af9013_download_firmware(state); |
| 1594 | if (ret) |
| 1595 | goto error; |
| 1596 | } |
| 1597 | |
| 1598 | /* firmware version */ |
| 1599 | for (i = 0; i < 3; i++) { |
| 1600 | ret = af9013_read_reg(state, 0x5103 + i, &buf[i]); |
| 1601 | if (ret) |
| 1602 | goto error; |
| 1603 | } |
| 1604 | info("firmware version:%d.%d.%d", buf[0], buf[1], buf[2]); |
| 1605 | |
| 1606 | /* settings for mp2if */ |
| 1607 | if (state->config.output_mode == AF9013_OUTPUT_MODE_USB) { |
| 1608 | /* AF9015 split PSB to 1.5k + 0.5k */ |
| 1609 | ret = af9013_write_reg_bits(state, 0xd50b, 2, 1, 1); |
| 1610 | } else { |
| 1611 | /* AF9013 change the output bit to data7 */ |
| 1612 | ret = af9013_write_reg_bits(state, 0xd500, 3, 1, 1); |
| 1613 | if (ret) |
| 1614 | goto error; |
| 1615 | /* AF9013 set mpeg to full speed */ |
| 1616 | ret = af9013_write_reg_bits(state, 0xd502, 4, 1, 1); |
| 1617 | } |
| 1618 | if (ret) |
| 1619 | goto error; |
| 1620 | ret = af9013_write_reg_bits(state, 0xd520, 4, 1, 1); |
| 1621 | if (ret) |
| 1622 | goto error; |
| 1623 | |
| 1624 | /* set GPIOs */ |
| 1625 | for (i = 0; i < sizeof(state->config.gpio); i++) { |
| 1626 | ret = af9013_set_gpio(state, i, state->config.gpio[i]); |
| 1627 | if (ret) |
| 1628 | goto error; |
| 1629 | } |
| 1630 | |
| 1631 | /* create dvb_frontend */ |
| 1632 | memcpy(&state->frontend.ops, &af9013_ops, |
| 1633 | sizeof(struct dvb_frontend_ops)); |
| 1634 | state->frontend.demodulator_priv = state; |
| 1635 | |
| 1636 | return &state->frontend; |
| 1637 | error: |
| 1638 | kfree(state); |
| 1639 | return NULL; |
| 1640 | } |
| 1641 | EXPORT_SYMBOL(af9013_attach); |
| 1642 | |
| 1643 | static struct dvb_frontend_ops af9013_ops = { |
| 1644 | .info = { |
| 1645 | .name = "Afatech AF9013 DVB-T", |
| 1646 | .type = FE_OFDM, |
| 1647 | .frequency_min = 174000000, |
| 1648 | .frequency_max = 862000000, |
| 1649 | .frequency_stepsize = 250000, |
| 1650 | .frequency_tolerance = 0, |
| 1651 | .caps = |
| 1652 | FE_CAN_FEC_1_2 | FE_CAN_FEC_2_3 | FE_CAN_FEC_3_4 | |
| 1653 | FE_CAN_FEC_5_6 | FE_CAN_FEC_7_8 | FE_CAN_FEC_AUTO | |
| 1654 | FE_CAN_QPSK | FE_CAN_QAM_16 | |
| 1655 | FE_CAN_QAM_64 | FE_CAN_QAM_AUTO | |
| 1656 | FE_CAN_TRANSMISSION_MODE_AUTO | |
| 1657 | FE_CAN_GUARD_INTERVAL_AUTO | |
| 1658 | FE_CAN_HIERARCHY_AUTO | |
| 1659 | FE_CAN_RECOVER | |
| 1660 | FE_CAN_MUTE_TS |
| 1661 | }, |
| 1662 | |
| 1663 | .release = af9013_release, |
| 1664 | .init = af9013_init, |
| 1665 | .sleep = af9013_sleep, |
| 1666 | .i2c_gate_ctrl = af9013_i2c_gate_ctrl, |
| 1667 | |
| 1668 | .set_frontend = af9013_set_frontend, |
| 1669 | .get_frontend = af9013_get_frontend, |
| 1670 | |
| 1671 | .get_tune_settings = af9013_get_tune_settings, |
| 1672 | |
| 1673 | .read_status = af9013_read_status, |
| 1674 | .read_ber = af9013_read_ber, |
| 1675 | .read_signal_strength = af9013_read_signal_strength, |
| 1676 | .read_snr = af9013_read_snr, |
| 1677 | .read_ucblocks = af9013_read_ucblocks, |
| 1678 | }; |
| 1679 | |
| 1680 | module_param_named(debug, af9013_debug, int, 0644); |
| 1681 | MODULE_PARM_DESC(debug, "Turn on/off frontend debugging (default:off)."); |
| 1682 | |
| 1683 | MODULE_AUTHOR("Antti Palosaari <crope@iki.fi>"); |
| 1684 | MODULE_DESCRIPTION("Afatech AF9013 DVB-T demodulator driver"); |
| 1685 | MODULE_LICENSE("GPL"); |