Andrey Smirnov | ed4a8fe | 2013-04-18 09:58:27 -0700 | [diff] [blame^] | 1 | /* |
| 2 | * drivers/mfd/si476x-cmd.c -- Subroutines implementing command |
| 3 | * protocol of si476x series of chips |
| 4 | * |
| 5 | * Copyright (C) 2012 Innovative Converged Devices(ICD) |
| 6 | * Copyright (C) 2013 Andrey Smirnov |
| 7 | * |
| 8 | * Author: Andrey Smirnov <andrew.smirnov@gmail.com> |
| 9 | * |
| 10 | * This program is free software; you can redistribute it and/or modify |
| 11 | * it under the terms of the GNU General Public License as published by |
| 12 | * the Free Software Foundation; version 2 of the License. |
| 13 | * |
| 14 | * This program is distributed in the hope that it will be useful, but |
| 15 | * WITHOUT ANY WARRANTY; without even the implied warranty of |
| 16 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
| 17 | * General Public License for more details. |
| 18 | * |
| 19 | */ |
| 20 | |
| 21 | #include <linux/module.h> |
| 22 | #include <linux/completion.h> |
| 23 | #include <linux/delay.h> |
| 24 | #include <linux/atomic.h> |
| 25 | #include <linux/i2c.h> |
| 26 | #include <linux/device.h> |
| 27 | #include <linux/gpio.h> |
| 28 | #include <linux/videodev2.h> |
| 29 | |
| 30 | #include <linux/mfd/si476x-core.h> |
| 31 | |
| 32 | #define msb(x) ((u8)((u16) x >> 8)) |
| 33 | #define lsb(x) ((u8)((u16) x & 0x00FF)) |
| 34 | |
| 35 | |
| 36 | |
| 37 | #define CMD_POWER_UP 0x01 |
| 38 | #define CMD_POWER_UP_A10_NRESP 1 |
| 39 | #define CMD_POWER_UP_A10_NARGS 5 |
| 40 | |
| 41 | #define CMD_POWER_UP_A20_NRESP 1 |
| 42 | #define CMD_POWER_UP_A20_NARGS 5 |
| 43 | |
| 44 | #define POWER_UP_DELAY_MS 110 |
| 45 | |
| 46 | #define CMD_POWER_DOWN 0x11 |
| 47 | #define CMD_POWER_DOWN_A10_NRESP 1 |
| 48 | |
| 49 | #define CMD_POWER_DOWN_A20_NRESP 1 |
| 50 | #define CMD_POWER_DOWN_A20_NARGS 1 |
| 51 | |
| 52 | #define CMD_FUNC_INFO 0x12 |
| 53 | #define CMD_FUNC_INFO_NRESP 7 |
| 54 | |
| 55 | #define CMD_SET_PROPERTY 0x13 |
| 56 | #define CMD_SET_PROPERTY_NARGS 5 |
| 57 | #define CMD_SET_PROPERTY_NRESP 1 |
| 58 | |
| 59 | #define CMD_GET_PROPERTY 0x14 |
| 60 | #define CMD_GET_PROPERTY_NARGS 3 |
| 61 | #define CMD_GET_PROPERTY_NRESP 4 |
| 62 | |
| 63 | #define CMD_AGC_STATUS 0x17 |
| 64 | #define CMD_AGC_STATUS_NRESP_A10 2 |
| 65 | #define CMD_AGC_STATUS_NRESP_A20 6 |
| 66 | |
| 67 | #define PIN_CFG_BYTE(x) (0x7F & (x)) |
| 68 | #define CMD_DIG_AUDIO_PIN_CFG 0x18 |
| 69 | #define CMD_DIG_AUDIO_PIN_CFG_NARGS 4 |
| 70 | #define CMD_DIG_AUDIO_PIN_CFG_NRESP 5 |
| 71 | |
| 72 | #define CMD_ZIF_PIN_CFG 0x19 |
| 73 | #define CMD_ZIF_PIN_CFG_NARGS 4 |
| 74 | #define CMD_ZIF_PIN_CFG_NRESP 5 |
| 75 | |
| 76 | #define CMD_IC_LINK_GPO_CTL_PIN_CFG 0x1A |
| 77 | #define CMD_IC_LINK_GPO_CTL_PIN_CFG_NARGS 4 |
| 78 | #define CMD_IC_LINK_GPO_CTL_PIN_CFG_NRESP 5 |
| 79 | |
| 80 | #define CMD_ANA_AUDIO_PIN_CFG 0x1B |
| 81 | #define CMD_ANA_AUDIO_PIN_CFG_NARGS 1 |
| 82 | #define CMD_ANA_AUDIO_PIN_CFG_NRESP 2 |
| 83 | |
| 84 | #define CMD_INTB_PIN_CFG 0x1C |
| 85 | #define CMD_INTB_PIN_CFG_NARGS 2 |
| 86 | #define CMD_INTB_PIN_CFG_A10_NRESP 6 |
| 87 | #define CMD_INTB_PIN_CFG_A20_NRESP 3 |
| 88 | |
| 89 | #define CMD_FM_TUNE_FREQ 0x30 |
| 90 | #define CMD_FM_TUNE_FREQ_A10_NARGS 5 |
| 91 | #define CMD_FM_TUNE_FREQ_A20_NARGS 3 |
| 92 | #define CMD_FM_TUNE_FREQ_NRESP 1 |
| 93 | |
| 94 | #define CMD_FM_RSQ_STATUS 0x32 |
| 95 | |
| 96 | #define CMD_FM_RSQ_STATUS_A10_NARGS 1 |
| 97 | #define CMD_FM_RSQ_STATUS_A10_NRESP 17 |
| 98 | #define CMD_FM_RSQ_STATUS_A30_NARGS 1 |
| 99 | #define CMD_FM_RSQ_STATUS_A30_NRESP 23 |
| 100 | |
| 101 | |
| 102 | #define CMD_FM_SEEK_START 0x31 |
| 103 | #define CMD_FM_SEEK_START_NARGS 1 |
| 104 | #define CMD_FM_SEEK_START_NRESP 1 |
| 105 | |
| 106 | #define CMD_FM_RDS_STATUS 0x36 |
| 107 | #define CMD_FM_RDS_STATUS_NARGS 1 |
| 108 | #define CMD_FM_RDS_STATUS_NRESP 16 |
| 109 | |
| 110 | #define CMD_FM_RDS_BLOCKCOUNT 0x37 |
| 111 | #define CMD_FM_RDS_BLOCKCOUNT_NARGS 1 |
| 112 | #define CMD_FM_RDS_BLOCKCOUNT_NRESP 8 |
| 113 | |
| 114 | #define CMD_FM_PHASE_DIVERSITY 0x38 |
| 115 | #define CMD_FM_PHASE_DIVERSITY_NARGS 1 |
| 116 | #define CMD_FM_PHASE_DIVERSITY_NRESP 1 |
| 117 | |
| 118 | #define CMD_FM_PHASE_DIV_STATUS 0x39 |
| 119 | #define CMD_FM_PHASE_DIV_STATUS_NRESP 2 |
| 120 | |
| 121 | #define CMD_AM_TUNE_FREQ 0x40 |
| 122 | #define CMD_AM_TUNE_FREQ_NARGS 3 |
| 123 | #define CMD_AM_TUNE_FREQ_NRESP 1 |
| 124 | |
| 125 | #define CMD_AM_RSQ_STATUS 0x42 |
| 126 | #define CMD_AM_RSQ_STATUS_NARGS 1 |
| 127 | #define CMD_AM_RSQ_STATUS_NRESP 13 |
| 128 | |
| 129 | #define CMD_AM_SEEK_START 0x41 |
| 130 | #define CMD_AM_SEEK_START_NARGS 1 |
| 131 | #define CMD_AM_SEEK_START_NRESP 1 |
| 132 | |
| 133 | |
| 134 | #define CMD_AM_ACF_STATUS 0x45 |
| 135 | #define CMD_AM_ACF_STATUS_NRESP 6 |
| 136 | #define CMD_AM_ACF_STATUS_NARGS 1 |
| 137 | |
| 138 | #define CMD_FM_ACF_STATUS 0x35 |
| 139 | #define CMD_FM_ACF_STATUS_NRESP 8 |
| 140 | #define CMD_FM_ACF_STATUS_NARGS 1 |
| 141 | |
| 142 | #define CMD_MAX_ARGS_COUNT (10) |
| 143 | |
| 144 | |
| 145 | enum si476x_acf_status_report_bits { |
| 146 | SI476X_ACF_BLEND_INT = (1 << 4), |
| 147 | SI476X_ACF_HIBLEND_INT = (1 << 3), |
| 148 | SI476X_ACF_HICUT_INT = (1 << 2), |
| 149 | SI476X_ACF_CHBW_INT = (1 << 1), |
| 150 | SI476X_ACF_SOFTMUTE_INT = (1 << 0), |
| 151 | |
| 152 | SI476X_ACF_SMUTE = (1 << 0), |
| 153 | SI476X_ACF_SMATTN = 0b11111, |
| 154 | SI476X_ACF_PILOT = (1 << 7), |
| 155 | SI476X_ACF_STBLEND = ~SI476X_ACF_PILOT, |
| 156 | }; |
| 157 | |
| 158 | enum si476x_agc_status_report_bits { |
| 159 | SI476X_AGC_MXHI = (1 << 5), |
| 160 | SI476X_AGC_MXLO = (1 << 4), |
| 161 | SI476X_AGC_LNAHI = (1 << 3), |
| 162 | SI476X_AGC_LNALO = (1 << 2), |
| 163 | }; |
| 164 | |
| 165 | enum si476x_errors { |
| 166 | SI476X_ERR_BAD_COMMAND = 0x10, |
| 167 | SI476X_ERR_BAD_ARG1 = 0x11, |
| 168 | SI476X_ERR_BAD_ARG2 = 0x12, |
| 169 | SI476X_ERR_BAD_ARG3 = 0x13, |
| 170 | SI476X_ERR_BAD_ARG4 = 0x14, |
| 171 | SI476X_ERR_BUSY = 0x18, |
| 172 | SI476X_ERR_BAD_INTERNAL_MEMORY = 0x20, |
| 173 | SI476X_ERR_BAD_PATCH = 0x30, |
| 174 | SI476X_ERR_BAD_BOOT_MODE = 0x31, |
| 175 | SI476X_ERR_BAD_PROPERTY = 0x40, |
| 176 | }; |
| 177 | |
| 178 | static int si476x_core_parse_and_nag_about_error(struct si476x_core *core) |
| 179 | { |
| 180 | int err; |
| 181 | char *cause; |
| 182 | u8 buffer[2]; |
| 183 | |
| 184 | if (core->revision != SI476X_REVISION_A10) { |
| 185 | err = si476x_core_i2c_xfer(core, SI476X_I2C_RECV, |
| 186 | buffer, sizeof(buffer)); |
| 187 | if (err == sizeof(buffer)) { |
| 188 | switch (buffer[1]) { |
| 189 | case SI476X_ERR_BAD_COMMAND: |
| 190 | cause = "Bad command"; |
| 191 | err = -EINVAL; |
| 192 | break; |
| 193 | case SI476X_ERR_BAD_ARG1: |
| 194 | cause = "Bad argument #1"; |
| 195 | err = -EINVAL; |
| 196 | break; |
| 197 | case SI476X_ERR_BAD_ARG2: |
| 198 | cause = "Bad argument #2"; |
| 199 | err = -EINVAL; |
| 200 | break; |
| 201 | case SI476X_ERR_BAD_ARG3: |
| 202 | cause = "Bad argument #3"; |
| 203 | err = -EINVAL; |
| 204 | break; |
| 205 | case SI476X_ERR_BAD_ARG4: |
| 206 | cause = "Bad argument #4"; |
| 207 | err = -EINVAL; |
| 208 | break; |
| 209 | case SI476X_ERR_BUSY: |
| 210 | cause = "Chip is busy"; |
| 211 | err = -EBUSY; |
| 212 | break; |
| 213 | case SI476X_ERR_BAD_INTERNAL_MEMORY: |
| 214 | cause = "Bad internal memory"; |
| 215 | err = -EIO; |
| 216 | break; |
| 217 | case SI476X_ERR_BAD_PATCH: |
| 218 | cause = "Bad patch"; |
| 219 | err = -EINVAL; |
| 220 | break; |
| 221 | case SI476X_ERR_BAD_BOOT_MODE: |
| 222 | cause = "Bad boot mode"; |
| 223 | err = -EINVAL; |
| 224 | break; |
| 225 | case SI476X_ERR_BAD_PROPERTY: |
| 226 | cause = "Bad property"; |
| 227 | err = -EINVAL; |
| 228 | break; |
| 229 | default: |
| 230 | cause = "Unknown"; |
| 231 | err = -EIO; |
| 232 | } |
| 233 | |
| 234 | dev_err(&core->client->dev, |
| 235 | "[Chip error status]: %s\n", cause); |
| 236 | } else { |
| 237 | dev_err(&core->client->dev, |
| 238 | "Failed to fetch error code\n"); |
| 239 | err = (err >= 0) ? -EIO : err; |
| 240 | } |
| 241 | } else { |
| 242 | err = -EIO; |
| 243 | } |
| 244 | |
| 245 | return err; |
| 246 | } |
| 247 | |
| 248 | /** |
| 249 | * si476x_core_send_command() - sends a command to si476x and waits its |
| 250 | * response |
| 251 | * @core: si476x_device structure for the device we are |
| 252 | * communicating with |
| 253 | * @command: command id |
| 254 | * @args: command arguments we are sending |
| 255 | * @argn: actual size of @args |
| 256 | * @response: buffer to place the expected response from the device |
| 257 | * @respn: actual size of @response |
| 258 | * @usecs: amount of time to wait before reading the response (in |
| 259 | * usecs) |
| 260 | * |
| 261 | * Function returns 0 on succsess and negative error code on |
| 262 | * failure |
| 263 | */ |
| 264 | static int si476x_core_send_command(struct si476x_core *core, |
| 265 | const u8 command, |
| 266 | const u8 args[], |
| 267 | const int argn, |
| 268 | u8 resp[], |
| 269 | const int respn, |
| 270 | const int usecs) |
| 271 | { |
| 272 | struct i2c_client *client = core->client; |
| 273 | int err; |
| 274 | u8 data[CMD_MAX_ARGS_COUNT + 1]; |
| 275 | |
| 276 | if (argn > CMD_MAX_ARGS_COUNT) { |
| 277 | err = -ENOMEM; |
| 278 | goto exit; |
| 279 | } |
| 280 | |
| 281 | if (!client->adapter) { |
| 282 | err = -ENODEV; |
| 283 | goto exit; |
| 284 | } |
| 285 | |
| 286 | /* First send the command and its arguments */ |
| 287 | data[0] = command; |
| 288 | memcpy(&data[1], args, argn); |
| 289 | dev_dbg(&client->dev, "Command:\n %*ph\n", argn + 1, data); |
| 290 | |
| 291 | err = si476x_core_i2c_xfer(core, SI476X_I2C_SEND, |
| 292 | (char *) data, argn + 1); |
| 293 | if (err != argn + 1) { |
| 294 | dev_err(&core->client->dev, |
| 295 | "Error while sending command 0x%02x\n", |
| 296 | command); |
| 297 | err = (err >= 0) ? -EIO : err; |
| 298 | goto exit; |
| 299 | } |
| 300 | /* Set CTS to zero only after the command is send to avoid |
| 301 | * possible racing conditions when working in polling mode */ |
| 302 | atomic_set(&core->cts, 0); |
| 303 | |
| 304 | /* if (unlikely(command == CMD_POWER_DOWN) */ |
| 305 | if (!wait_event_timeout(core->command, |
| 306 | atomic_read(&core->cts), |
| 307 | usecs_to_jiffies(usecs) + 1)) |
| 308 | dev_warn(&core->client->dev, |
| 309 | "(%s) [CMD 0x%02x] Answer timeout.\n", |
| 310 | __func__, command); |
| 311 | |
| 312 | /* |
| 313 | When working in polling mode, for some reason the tuner will |
| 314 | report CTS bit as being set in the first status byte read, |
| 315 | but all the consequtive ones will return zeros until the |
| 316 | tuner is actually completed the POWER_UP command. To |
| 317 | workaround that we wait for second CTS to be reported |
| 318 | */ |
| 319 | if (unlikely(!core->client->irq && command == CMD_POWER_UP)) { |
| 320 | if (!wait_event_timeout(core->command, |
| 321 | atomic_read(&core->cts), |
| 322 | usecs_to_jiffies(usecs) + 1)) |
| 323 | dev_warn(&core->client->dev, |
| 324 | "(%s) Power up took too much time.\n", |
| 325 | __func__); |
| 326 | } |
| 327 | |
| 328 | /* Then get the response */ |
| 329 | err = si476x_core_i2c_xfer(core, SI476X_I2C_RECV, resp, respn); |
| 330 | if (err != respn) { |
| 331 | dev_err(&core->client->dev, |
| 332 | "Error while reading response for command 0x%02x\n", |
| 333 | command); |
| 334 | err = (err >= 0) ? -EIO : err; |
| 335 | goto exit; |
| 336 | } |
| 337 | dev_dbg(&client->dev, "Response:\n %*ph\n", respn, resp); |
| 338 | |
| 339 | err = 0; |
| 340 | |
| 341 | if (resp[0] & SI476X_ERR) { |
| 342 | dev_err(&core->client->dev, |
| 343 | "[CMD 0x%02x] Chip set error flag\n", command); |
| 344 | err = si476x_core_parse_and_nag_about_error(core); |
| 345 | goto exit; |
| 346 | } |
| 347 | |
| 348 | if (!(resp[0] & SI476X_CTS)) |
| 349 | err = -EBUSY; |
| 350 | exit: |
| 351 | return err; |
| 352 | } |
| 353 | |
| 354 | static int si476x_cmd_clear_stc(struct si476x_core *core) |
| 355 | { |
| 356 | int err; |
| 357 | struct si476x_rsq_status_args args = { |
| 358 | .primary = false, |
| 359 | .rsqack = false, |
| 360 | .attune = false, |
| 361 | .cancel = false, |
| 362 | .stcack = true, |
| 363 | }; |
| 364 | |
| 365 | switch (core->power_up_parameters.func) { |
| 366 | case SI476X_FUNC_FM_RECEIVER: |
| 367 | err = si476x_core_cmd_fm_rsq_status(core, &args, NULL); |
| 368 | break; |
| 369 | case SI476X_FUNC_AM_RECEIVER: |
| 370 | err = si476x_core_cmd_am_rsq_status(core, &args, NULL); |
| 371 | break; |
| 372 | default: |
| 373 | err = -EINVAL; |
| 374 | } |
| 375 | |
| 376 | return err; |
| 377 | } |
| 378 | |
| 379 | static int si476x_cmd_tune_seek_freq(struct si476x_core *core, |
| 380 | uint8_t cmd, |
| 381 | const uint8_t args[], size_t argn, |
| 382 | uint8_t *resp, size_t respn) |
| 383 | { |
| 384 | int err; |
| 385 | |
| 386 | |
| 387 | atomic_set(&core->stc, 0); |
| 388 | err = si476x_core_send_command(core, cmd, args, argn, resp, respn, |
| 389 | SI476X_TIMEOUT_TUNE); |
| 390 | if (!err) { |
| 391 | wait_event_killable(core->tuning, |
| 392 | atomic_read(&core->stc)); |
| 393 | si476x_cmd_clear_stc(core); |
| 394 | } |
| 395 | |
| 396 | return err; |
| 397 | } |
| 398 | |
| 399 | /** |
| 400 | * si476x_cmd_func_info() - send 'FUNC_INFO' command to the device |
| 401 | * @core: device to send the command to |
| 402 | * @info: struct si476x_func_info to fill all the information |
| 403 | * returned by the command |
| 404 | * |
| 405 | * The command requests the firmware and patch version for currently |
| 406 | * loaded firmware (dependent on the function of the device FM/AM/WB) |
| 407 | * |
| 408 | * Function returns 0 on succsess and negative error code on |
| 409 | * failure |
| 410 | */ |
| 411 | int si476x_core_cmd_func_info(struct si476x_core *core, |
| 412 | struct si476x_func_info *info) |
| 413 | { |
| 414 | int err; |
| 415 | u8 resp[CMD_FUNC_INFO_NRESP]; |
| 416 | |
| 417 | err = si476x_core_send_command(core, CMD_FUNC_INFO, |
| 418 | NULL, 0, |
| 419 | resp, ARRAY_SIZE(resp), |
| 420 | SI476X_DEFAULT_TIMEOUT); |
| 421 | |
| 422 | info->firmware.major = resp[1]; |
| 423 | info->firmware.minor[0] = resp[2]; |
| 424 | info->firmware.minor[1] = resp[3]; |
| 425 | |
| 426 | info->patch_id = ((u16) resp[4] << 8) | resp[5]; |
| 427 | info->func = resp[6]; |
| 428 | |
| 429 | return err; |
| 430 | } |
| 431 | EXPORT_SYMBOL_GPL(si476x_core_cmd_func_info); |
| 432 | |
| 433 | /** |
| 434 | * si476x_cmd_set_property() - send 'SET_PROPERTY' command to the device |
| 435 | * @core: device to send the command to |
| 436 | * @property: property address |
| 437 | * @value: property value |
| 438 | * |
| 439 | * Function returns 0 on succsess and negative error code on |
| 440 | * failure |
| 441 | */ |
| 442 | int si476x_core_cmd_set_property(struct si476x_core *core, |
| 443 | u16 property, u16 value) |
| 444 | { |
| 445 | u8 resp[CMD_SET_PROPERTY_NRESP]; |
| 446 | const u8 args[CMD_SET_PROPERTY_NARGS] = { |
| 447 | 0x00, |
| 448 | msb(property), |
| 449 | lsb(property), |
| 450 | msb(value), |
| 451 | lsb(value), |
| 452 | }; |
| 453 | |
| 454 | return si476x_core_send_command(core, CMD_SET_PROPERTY, |
| 455 | args, ARRAY_SIZE(args), |
| 456 | resp, ARRAY_SIZE(resp), |
| 457 | SI476X_DEFAULT_TIMEOUT); |
| 458 | } |
| 459 | EXPORT_SYMBOL_GPL(si476x_core_cmd_set_property); |
| 460 | |
| 461 | /** |
| 462 | * si476x_cmd_get_property() - send 'GET_PROPERTY' command to the device |
| 463 | * @core: device to send the command to |
| 464 | * @property: property address |
| 465 | * |
| 466 | * Function return the value of property as u16 on success or a |
| 467 | * negative error on failure |
| 468 | */ |
| 469 | int si476x_core_cmd_get_property(struct si476x_core *core, u16 property) |
| 470 | { |
| 471 | int err; |
| 472 | u8 resp[CMD_GET_PROPERTY_NRESP]; |
| 473 | const u8 args[CMD_GET_PROPERTY_NARGS] = { |
| 474 | 0x00, |
| 475 | msb(property), |
| 476 | lsb(property), |
| 477 | }; |
| 478 | |
| 479 | err = si476x_core_send_command(core, CMD_GET_PROPERTY, |
| 480 | args, ARRAY_SIZE(args), |
| 481 | resp, ARRAY_SIZE(resp), |
| 482 | SI476X_DEFAULT_TIMEOUT); |
| 483 | if (err < 0) |
| 484 | return err; |
| 485 | else |
| 486 | return be16_to_cpup((__be16 *)(resp + 2)); |
| 487 | } |
| 488 | EXPORT_SYMBOL_GPL(si476x_core_cmd_get_property); |
| 489 | |
| 490 | /** |
| 491 | * si476x_cmd_dig_audio_pin_cfg() - send 'DIG_AUDIO_PIN_CFG' command to |
| 492 | * the device |
| 493 | * @core: device to send the command to |
| 494 | * @dclk: DCLK pin function configuration: |
| 495 | * #SI476X_DCLK_NOOP - do not modify the behaviour |
| 496 | * #SI476X_DCLK_TRISTATE - put the pin in tristate condition, |
| 497 | * enable 1MOhm pulldown |
| 498 | * #SI476X_DCLK_DAUDIO - set the pin to be a part of digital |
| 499 | * audio interface |
| 500 | * @dfs: DFS pin function configuration: |
| 501 | * #SI476X_DFS_NOOP - do not modify the behaviour |
| 502 | * #SI476X_DFS_TRISTATE - put the pin in tristate condition, |
| 503 | * enable 1MOhm pulldown |
| 504 | * SI476X_DFS_DAUDIO - set the pin to be a part of digital |
| 505 | * audio interface |
| 506 | * @dout - DOUT pin function configuration: |
| 507 | * SI476X_DOUT_NOOP - do not modify the behaviour |
| 508 | * SI476X_DOUT_TRISTATE - put the pin in tristate condition, |
| 509 | * enable 1MOhm pulldown |
| 510 | * SI476X_DOUT_I2S_OUTPUT - set this pin to be digital out on I2S |
| 511 | * port 1 |
| 512 | * SI476X_DOUT_I2S_INPUT - set this pin to be digital in on I2S |
| 513 | * port 1 |
| 514 | * @xout - XOUT pin function configuration: |
| 515 | * SI476X_XOUT_NOOP - do not modify the behaviour |
| 516 | * SI476X_XOUT_TRISTATE - put the pin in tristate condition, |
| 517 | * enable 1MOhm pulldown |
| 518 | * SI476X_XOUT_I2S_INPUT - set this pin to be digital in on I2S |
| 519 | * port 1 |
| 520 | * SI476X_XOUT_MODE_SELECT - set this pin to be the input that |
| 521 | * selects the mode of the I2S audio |
| 522 | * combiner (analog or HD) |
| 523 | * [SI4761/63/65/67 Only] |
| 524 | * |
| 525 | * Function returns 0 on success and negative error code on failure |
| 526 | */ |
| 527 | int si476x_core_cmd_dig_audio_pin_cfg(struct si476x_core *core, |
| 528 | enum si476x_dclk_config dclk, |
| 529 | enum si476x_dfs_config dfs, |
| 530 | enum si476x_dout_config dout, |
| 531 | enum si476x_xout_config xout) |
| 532 | { |
| 533 | u8 resp[CMD_DIG_AUDIO_PIN_CFG_NRESP]; |
| 534 | const u8 args[CMD_DIG_AUDIO_PIN_CFG_NARGS] = { |
| 535 | PIN_CFG_BYTE(dclk), |
| 536 | PIN_CFG_BYTE(dfs), |
| 537 | PIN_CFG_BYTE(dout), |
| 538 | PIN_CFG_BYTE(xout), |
| 539 | }; |
| 540 | |
| 541 | return si476x_core_send_command(core, CMD_DIG_AUDIO_PIN_CFG, |
| 542 | args, ARRAY_SIZE(args), |
| 543 | resp, ARRAY_SIZE(resp), |
| 544 | SI476X_DEFAULT_TIMEOUT); |
| 545 | } |
| 546 | EXPORT_SYMBOL_GPL(si476x_core_cmd_dig_audio_pin_cfg); |
| 547 | |
| 548 | /** |
| 549 | * si476x_cmd_zif_pin_cfg - send 'ZIF_PIN_CFG_COMMAND' |
| 550 | * @core - device to send the command to |
| 551 | * @iqclk - IQCL pin function configuration: |
| 552 | * SI476X_IQCLK_NOOP - do not modify the behaviour |
| 553 | * SI476X_IQCLK_TRISTATE - put the pin in tristate condition, |
| 554 | * enable 1MOhm pulldown |
| 555 | * SI476X_IQCLK_IQ - set pin to be a part of I/Q interace |
| 556 | * in master mode |
| 557 | * @iqfs - IQFS pin function configuration: |
| 558 | * SI476X_IQFS_NOOP - do not modify the behaviour |
| 559 | * SI476X_IQFS_TRISTATE - put the pin in tristate condition, |
| 560 | * enable 1MOhm pulldown |
| 561 | * SI476X_IQFS_IQ - set pin to be a part of I/Q interace |
| 562 | * in master mode |
| 563 | * @iout - IOUT pin function configuration: |
| 564 | * SI476X_IOUT_NOOP - do not modify the behaviour |
| 565 | * SI476X_IOUT_TRISTATE - put the pin in tristate condition, |
| 566 | * enable 1MOhm pulldown |
| 567 | * SI476X_IOUT_OUTPUT - set pin to be I out |
| 568 | * @qout - QOUT pin function configuration: |
| 569 | * SI476X_QOUT_NOOP - do not modify the behaviour |
| 570 | * SI476X_QOUT_TRISTATE - put the pin in tristate condition, |
| 571 | * enable 1MOhm pulldown |
| 572 | * SI476X_QOUT_OUTPUT - set pin to be Q out |
| 573 | * |
| 574 | * Function returns 0 on success and negative error code on failure |
| 575 | */ |
| 576 | int si476x_core_cmd_zif_pin_cfg(struct si476x_core *core, |
| 577 | enum si476x_iqclk_config iqclk, |
| 578 | enum si476x_iqfs_config iqfs, |
| 579 | enum si476x_iout_config iout, |
| 580 | enum si476x_qout_config qout) |
| 581 | { |
| 582 | u8 resp[CMD_ZIF_PIN_CFG_NRESP]; |
| 583 | const u8 args[CMD_ZIF_PIN_CFG_NARGS] = { |
| 584 | PIN_CFG_BYTE(iqclk), |
| 585 | PIN_CFG_BYTE(iqfs), |
| 586 | PIN_CFG_BYTE(iout), |
| 587 | PIN_CFG_BYTE(qout), |
| 588 | }; |
| 589 | |
| 590 | return si476x_core_send_command(core, CMD_ZIF_PIN_CFG, |
| 591 | args, ARRAY_SIZE(args), |
| 592 | resp, ARRAY_SIZE(resp), |
| 593 | SI476X_DEFAULT_TIMEOUT); |
| 594 | } |
| 595 | EXPORT_SYMBOL_GPL(si476x_core_cmd_zif_pin_cfg); |
| 596 | |
| 597 | /** |
| 598 | * si476x_cmd_ic_link_gpo_ctl_pin_cfg - send |
| 599 | * 'IC_LINK_GPIO_CTL_PIN_CFG' comand to the device |
| 600 | * @core - device to send the command to |
| 601 | * @icin - ICIN pin function configuration: |
| 602 | * SI476X_ICIN_NOOP - do not modify the behaviour |
| 603 | * SI476X_ICIN_TRISTATE - put the pin in tristate condition, |
| 604 | * enable 1MOhm pulldown |
| 605 | * SI476X_ICIN_GPO1_HIGH - set pin to be an output, drive it high |
| 606 | * SI476X_ICIN_GPO1_LOW - set pin to be an output, drive it low |
| 607 | * SI476X_ICIN_IC_LINK - set the pin to be a part of Inter-Chip link |
| 608 | * @icip - ICIP pin function configuration: |
| 609 | * SI476X_ICIP_NOOP - do not modify the behaviour |
| 610 | * SI476X_ICIP_TRISTATE - put the pin in tristate condition, |
| 611 | * enable 1MOhm pulldown |
| 612 | * SI476X_ICIP_GPO1_HIGH - set pin to be an output, drive it high |
| 613 | * SI476X_ICIP_GPO1_LOW - set pin to be an output, drive it low |
| 614 | * SI476X_ICIP_IC_LINK - set the pin to be a part of Inter-Chip link |
| 615 | * @icon - ICON pin function configuration: |
| 616 | * SI476X_ICON_NOOP - do not modify the behaviour |
| 617 | * SI476X_ICON_TRISTATE - put the pin in tristate condition, |
| 618 | * enable 1MOhm pulldown |
| 619 | * SI476X_ICON_I2S - set the pin to be a part of audio |
| 620 | * interface in slave mode (DCLK) |
| 621 | * SI476X_ICON_IC_LINK - set the pin to be a part of Inter-Chip link |
| 622 | * @icop - ICOP pin function configuration: |
| 623 | * SI476X_ICOP_NOOP - do not modify the behaviour |
| 624 | * SI476X_ICOP_TRISTATE - put the pin in tristate condition, |
| 625 | * enable 1MOhm pulldown |
| 626 | * SI476X_ICOP_I2S - set the pin to be a part of audio |
| 627 | * interface in slave mode (DOUT) |
| 628 | * [Si4761/63/65/67 Only] |
| 629 | * SI476X_ICOP_IC_LINK - set the pin to be a part of Inter-Chip link |
| 630 | * |
| 631 | * Function returns 0 on success and negative error code on failure |
| 632 | */ |
| 633 | int si476x_core_cmd_ic_link_gpo_ctl_pin_cfg(struct si476x_core *core, |
| 634 | enum si476x_icin_config icin, |
| 635 | enum si476x_icip_config icip, |
| 636 | enum si476x_icon_config icon, |
| 637 | enum si476x_icop_config icop) |
| 638 | { |
| 639 | u8 resp[CMD_IC_LINK_GPO_CTL_PIN_CFG_NRESP]; |
| 640 | const u8 args[CMD_IC_LINK_GPO_CTL_PIN_CFG_NARGS] = { |
| 641 | PIN_CFG_BYTE(icin), |
| 642 | PIN_CFG_BYTE(icip), |
| 643 | PIN_CFG_BYTE(icon), |
| 644 | PIN_CFG_BYTE(icop), |
| 645 | }; |
| 646 | |
| 647 | return si476x_core_send_command(core, CMD_IC_LINK_GPO_CTL_PIN_CFG, |
| 648 | args, ARRAY_SIZE(args), |
| 649 | resp, ARRAY_SIZE(resp), |
| 650 | SI476X_DEFAULT_TIMEOUT); |
| 651 | } |
| 652 | EXPORT_SYMBOL_GPL(si476x_core_cmd_ic_link_gpo_ctl_pin_cfg); |
| 653 | |
| 654 | /** |
| 655 | * si476x_cmd_ana_audio_pin_cfg - send 'ANA_AUDIO_PIN_CFG' to the |
| 656 | * device |
| 657 | * @core - device to send the command to |
| 658 | * @lrout - LROUT pin function configuration: |
| 659 | * SI476X_LROUT_NOOP - do not modify the behaviour |
| 660 | * SI476X_LROUT_TRISTATE - put the pin in tristate condition, |
| 661 | * enable 1MOhm pulldown |
| 662 | * SI476X_LROUT_AUDIO - set pin to be audio output |
| 663 | * SI476X_LROUT_MPX - set pin to be MPX output |
| 664 | * |
| 665 | * Function returns 0 on success and negative error code on failure |
| 666 | */ |
| 667 | int si476x_core_cmd_ana_audio_pin_cfg(struct si476x_core *core, |
| 668 | enum si476x_lrout_config lrout) |
| 669 | { |
| 670 | u8 resp[CMD_ANA_AUDIO_PIN_CFG_NRESP]; |
| 671 | const u8 args[CMD_ANA_AUDIO_PIN_CFG_NARGS] = { |
| 672 | PIN_CFG_BYTE(lrout), |
| 673 | }; |
| 674 | |
| 675 | return si476x_core_send_command(core, CMD_ANA_AUDIO_PIN_CFG, |
| 676 | args, ARRAY_SIZE(args), |
| 677 | resp, ARRAY_SIZE(resp), |
| 678 | SI476X_DEFAULT_TIMEOUT); |
| 679 | } |
| 680 | EXPORT_SYMBOL_GPL(si476x_core_cmd_ana_audio_pin_cfg); |
| 681 | |
| 682 | |
| 683 | /** |
| 684 | * si476x_cmd_intb_pin_cfg - send 'INTB_PIN_CFG' command to the device |
| 685 | * @core - device to send the command to |
| 686 | * @intb - INTB pin function configuration: |
| 687 | * SI476X_INTB_NOOP - do not modify the behaviour |
| 688 | * SI476X_INTB_TRISTATE - put the pin in tristate condition, |
| 689 | * enable 1MOhm pulldown |
| 690 | * SI476X_INTB_DAUDIO - set pin to be a part of digital |
| 691 | * audio interface in slave mode |
| 692 | * SI476X_INTB_IRQ - set pin to be an interrupt request line |
| 693 | * @a1 - A1 pin function configuration: |
| 694 | * SI476X_A1_NOOP - do not modify the behaviour |
| 695 | * SI476X_A1_TRISTATE - put the pin in tristate condition, |
| 696 | * enable 1MOhm pulldown |
| 697 | * SI476X_A1_IRQ - set pin to be an interrupt request line |
| 698 | * |
| 699 | * Function returns 0 on success and negative error code on failure |
| 700 | */ |
| 701 | static int si476x_core_cmd_intb_pin_cfg_a10(struct si476x_core *core, |
| 702 | enum si476x_intb_config intb, |
| 703 | enum si476x_a1_config a1) |
| 704 | { |
| 705 | u8 resp[CMD_INTB_PIN_CFG_A10_NRESP]; |
| 706 | const u8 args[CMD_INTB_PIN_CFG_NARGS] = { |
| 707 | PIN_CFG_BYTE(intb), |
| 708 | PIN_CFG_BYTE(a1), |
| 709 | }; |
| 710 | |
| 711 | return si476x_core_send_command(core, CMD_INTB_PIN_CFG, |
| 712 | args, ARRAY_SIZE(args), |
| 713 | resp, ARRAY_SIZE(resp), |
| 714 | SI476X_DEFAULT_TIMEOUT); |
| 715 | } |
| 716 | |
| 717 | static int si476x_core_cmd_intb_pin_cfg_a20(struct si476x_core *core, |
| 718 | enum si476x_intb_config intb, |
| 719 | enum si476x_a1_config a1) |
| 720 | { |
| 721 | u8 resp[CMD_INTB_PIN_CFG_A20_NRESP]; |
| 722 | const u8 args[CMD_INTB_PIN_CFG_NARGS] = { |
| 723 | PIN_CFG_BYTE(intb), |
| 724 | PIN_CFG_BYTE(a1), |
| 725 | }; |
| 726 | |
| 727 | return si476x_core_send_command(core, CMD_INTB_PIN_CFG, |
| 728 | args, ARRAY_SIZE(args), |
| 729 | resp, ARRAY_SIZE(resp), |
| 730 | SI476X_DEFAULT_TIMEOUT); |
| 731 | } |
| 732 | |
| 733 | |
| 734 | |
| 735 | /** |
| 736 | * si476x_cmd_am_rsq_status - send 'AM_RSQ_STATUS' command to the |
| 737 | * device |
| 738 | * @core - device to send the command to |
| 739 | * @rsqack - if set command clears RSQINT, SNRINT, SNRLINT, RSSIHINT, |
| 740 | * RSSSILINT, BLENDINT, MULTHINT and MULTLINT |
| 741 | * @attune - when set the values in the status report are the values |
| 742 | * that were calculated at tune |
| 743 | * @cancel - abort ongoing seek/tune opertation |
| 744 | * @stcack - clear the STCINT bin in status register |
| 745 | * @report - all signal quality information retured by the command |
| 746 | * (if NULL then the output of the command is ignored) |
| 747 | * |
| 748 | * Function returns 0 on success and negative error code on failure |
| 749 | */ |
| 750 | int si476x_core_cmd_am_rsq_status(struct si476x_core *core, |
| 751 | struct si476x_rsq_status_args *rsqargs, |
| 752 | struct si476x_rsq_status_report *report) |
| 753 | { |
| 754 | int err; |
| 755 | u8 resp[CMD_AM_RSQ_STATUS_NRESP]; |
| 756 | const u8 args[CMD_AM_RSQ_STATUS_NARGS] = { |
| 757 | rsqargs->rsqack << 3 | rsqargs->attune << 2 | |
| 758 | rsqargs->cancel << 1 | rsqargs->stcack, |
| 759 | }; |
| 760 | |
| 761 | err = si476x_core_send_command(core, CMD_AM_RSQ_STATUS, |
| 762 | args, ARRAY_SIZE(args), |
| 763 | resp, ARRAY_SIZE(resp), |
| 764 | SI476X_DEFAULT_TIMEOUT); |
| 765 | /* |
| 766 | * Besides getting received signal quality information this |
| 767 | * command can be used to just acknowledge different interrupt |
| 768 | * flags in those cases it is useless to copy and parse |
| 769 | * received data so user can pass NULL, and thus avoid |
| 770 | * unnecessary copying. |
| 771 | */ |
| 772 | if (!report) |
| 773 | return err; |
| 774 | |
| 775 | report->snrhint = 0b00001000 & resp[1]; |
| 776 | report->snrlint = 0b00000100 & resp[1]; |
| 777 | report->rssihint = 0b00000010 & resp[1]; |
| 778 | report->rssilint = 0b00000001 & resp[1]; |
| 779 | |
| 780 | report->bltf = 0b10000000 & resp[2]; |
| 781 | report->snr_ready = 0b00100000 & resp[2]; |
| 782 | report->rssiready = 0b00001000 & resp[2]; |
| 783 | report->afcrl = 0b00000010 & resp[2]; |
| 784 | report->valid = 0b00000001 & resp[2]; |
| 785 | |
| 786 | report->readfreq = be16_to_cpup((__be16 *)(resp + 3)); |
| 787 | report->freqoff = resp[5]; |
| 788 | report->rssi = resp[6]; |
| 789 | report->snr = resp[7]; |
| 790 | report->lassi = resp[9]; |
| 791 | report->hassi = resp[10]; |
| 792 | report->mult = resp[11]; |
| 793 | report->dev = resp[12]; |
| 794 | |
| 795 | return err; |
| 796 | } |
| 797 | EXPORT_SYMBOL_GPL(si476x_core_cmd_am_rsq_status); |
| 798 | |
| 799 | int si476x_core_cmd_fm_acf_status(struct si476x_core *core, |
| 800 | struct si476x_acf_status_report *report) |
| 801 | { |
| 802 | int err; |
| 803 | u8 resp[CMD_FM_ACF_STATUS_NRESP]; |
| 804 | const u8 args[CMD_FM_ACF_STATUS_NARGS] = { |
| 805 | 0x0, |
| 806 | }; |
| 807 | |
| 808 | if (!report) |
| 809 | return -EINVAL; |
| 810 | |
| 811 | err = si476x_core_send_command(core, CMD_FM_ACF_STATUS, |
| 812 | args, ARRAY_SIZE(args), |
| 813 | resp, ARRAY_SIZE(resp), |
| 814 | SI476X_DEFAULT_TIMEOUT); |
| 815 | if (err < 0) |
| 816 | return err; |
| 817 | |
| 818 | report->blend_int = resp[1] & SI476X_ACF_BLEND_INT; |
| 819 | report->hblend_int = resp[1] & SI476X_ACF_HIBLEND_INT; |
| 820 | report->hicut_int = resp[1] & SI476X_ACF_HICUT_INT; |
| 821 | report->chbw_int = resp[1] & SI476X_ACF_CHBW_INT; |
| 822 | report->softmute_int = resp[1] & SI476X_ACF_SOFTMUTE_INT; |
| 823 | report->smute = resp[2] & SI476X_ACF_SMUTE; |
| 824 | report->smattn = resp[3] & SI476X_ACF_SMATTN; |
| 825 | report->chbw = resp[4]; |
| 826 | report->hicut = resp[5]; |
| 827 | report->hiblend = resp[6]; |
| 828 | report->pilot = resp[7] & SI476X_ACF_PILOT; |
| 829 | report->stblend = resp[7] & SI476X_ACF_STBLEND; |
| 830 | |
| 831 | return err; |
| 832 | } |
| 833 | EXPORT_SYMBOL_GPL(si476x_core_cmd_fm_acf_status); |
| 834 | |
| 835 | int si476x_core_cmd_am_acf_status(struct si476x_core *core, |
| 836 | struct si476x_acf_status_report *report) |
| 837 | { |
| 838 | int err; |
| 839 | u8 resp[CMD_AM_ACF_STATUS_NRESP]; |
| 840 | const u8 args[CMD_AM_ACF_STATUS_NARGS] = { |
| 841 | 0x0, |
| 842 | }; |
| 843 | |
| 844 | if (!report) |
| 845 | return -EINVAL; |
| 846 | |
| 847 | err = si476x_core_send_command(core, CMD_AM_ACF_STATUS, |
| 848 | args, ARRAY_SIZE(args), |
| 849 | resp, ARRAY_SIZE(resp), |
| 850 | SI476X_DEFAULT_TIMEOUT); |
| 851 | if (err < 0) |
| 852 | return err; |
| 853 | |
| 854 | report->blend_int = resp[1] & SI476X_ACF_BLEND_INT; |
| 855 | report->hblend_int = resp[1] & SI476X_ACF_HIBLEND_INT; |
| 856 | report->hicut_int = resp[1] & SI476X_ACF_HICUT_INT; |
| 857 | report->chbw_int = resp[1] & SI476X_ACF_CHBW_INT; |
| 858 | report->softmute_int = resp[1] & SI476X_ACF_SOFTMUTE_INT; |
| 859 | report->smute = resp[2] & SI476X_ACF_SMUTE; |
| 860 | report->smattn = resp[3] & SI476X_ACF_SMATTN; |
| 861 | report->chbw = resp[4]; |
| 862 | report->hicut = resp[5]; |
| 863 | |
| 864 | return err; |
| 865 | } |
| 866 | EXPORT_SYMBOL_GPL(si476x_core_cmd_am_acf_status); |
| 867 | |
| 868 | |
| 869 | /** |
| 870 | * si476x_cmd_fm_seek_start - send 'FM_SEEK_START' command to the |
| 871 | * device |
| 872 | * @core - device to send the command to |
| 873 | * @seekup - if set the direction of the search is 'up' |
| 874 | * @wrap - if set seek wraps when hitting band limit |
| 875 | * |
| 876 | * This function begins search for a valid station. The station is |
| 877 | * considered valid when 'FM_VALID_SNR_THRESHOLD' and |
| 878 | * 'FM_VALID_RSSI_THRESHOLD' and 'FM_VALID_MAX_TUNE_ERROR' criteria |
| 879 | * are met. |
| 880 | } * |
| 881 | * Function returns 0 on success and negative error code on failure |
| 882 | */ |
| 883 | int si476x_core_cmd_fm_seek_start(struct si476x_core *core, |
| 884 | bool seekup, bool wrap) |
| 885 | { |
| 886 | u8 resp[CMD_FM_SEEK_START_NRESP]; |
| 887 | const u8 args[CMD_FM_SEEK_START_NARGS] = { |
| 888 | seekup << 3 | wrap << 2, |
| 889 | }; |
| 890 | |
| 891 | return si476x_cmd_tune_seek_freq(core, CMD_FM_SEEK_START, |
| 892 | args, sizeof(args), |
| 893 | resp, sizeof(resp)); |
| 894 | } |
| 895 | EXPORT_SYMBOL_GPL(si476x_core_cmd_fm_seek_start); |
| 896 | |
| 897 | /** |
| 898 | * si476x_cmd_fm_rds_status - send 'FM_RDS_STATUS' command to the |
| 899 | * device |
| 900 | * @core - device to send the command to |
| 901 | * @status_only - if set the data is not removed from RDSFIFO, |
| 902 | * RDSFIFOUSED is not decremented and data in all the |
| 903 | * rest RDS data contains the last valid info received |
| 904 | * @mtfifo if set the command clears RDS receive FIFO |
| 905 | * @intack if set the command clards the RDSINT bit. |
| 906 | * |
| 907 | * Function returns 0 on success and negative error code on failure |
| 908 | */ |
| 909 | int si476x_core_cmd_fm_rds_status(struct si476x_core *core, |
| 910 | bool status_only, |
| 911 | bool mtfifo, |
| 912 | bool intack, |
| 913 | struct si476x_rds_status_report *report) |
| 914 | { |
| 915 | int err; |
| 916 | u8 resp[CMD_FM_RDS_STATUS_NRESP]; |
| 917 | const u8 args[CMD_FM_RDS_STATUS_NARGS] = { |
| 918 | status_only << 2 | mtfifo << 1 | intack, |
| 919 | }; |
| 920 | |
| 921 | err = si476x_core_send_command(core, CMD_FM_RDS_STATUS, |
| 922 | args, ARRAY_SIZE(args), |
| 923 | resp, ARRAY_SIZE(resp), |
| 924 | SI476X_DEFAULT_TIMEOUT); |
| 925 | /* |
| 926 | * Besides getting RDS status information this command can be |
| 927 | * used to just acknowledge different interrupt flags in those |
| 928 | * cases it is useless to copy and parse received data so user |
| 929 | * can pass NULL, and thus avoid unnecessary copying. |
| 930 | */ |
| 931 | if (err < 0 || report == NULL) |
| 932 | return err; |
| 933 | |
| 934 | report->rdstpptyint = 0b00010000 & resp[1]; |
| 935 | report->rdspiint = 0b00001000 & resp[1]; |
| 936 | report->rdssyncint = 0b00000010 & resp[1]; |
| 937 | report->rdsfifoint = 0b00000001 & resp[1]; |
| 938 | |
| 939 | report->tpptyvalid = 0b00010000 & resp[2]; |
| 940 | report->pivalid = 0b00001000 & resp[2]; |
| 941 | report->rdssync = 0b00000010 & resp[2]; |
| 942 | report->rdsfifolost = 0b00000001 & resp[2]; |
| 943 | |
| 944 | report->tp = 0b00100000 & resp[3]; |
| 945 | report->pty = 0b00011111 & resp[3]; |
| 946 | |
| 947 | report->pi = be16_to_cpup((__be16 *)(resp + 4)); |
| 948 | report->rdsfifoused = resp[6]; |
| 949 | |
| 950 | report->ble[V4L2_RDS_BLOCK_A] = 0b11000000 & resp[7]; |
| 951 | report->ble[V4L2_RDS_BLOCK_B] = 0b00110000 & resp[7]; |
| 952 | report->ble[V4L2_RDS_BLOCK_C] = 0b00001100 & resp[7]; |
| 953 | report->ble[V4L2_RDS_BLOCK_D] = 0b00000011 & resp[7]; |
| 954 | |
| 955 | report->rds[V4L2_RDS_BLOCK_A].block = V4L2_RDS_BLOCK_A; |
| 956 | report->rds[V4L2_RDS_BLOCK_A].msb = resp[8]; |
| 957 | report->rds[V4L2_RDS_BLOCK_A].lsb = resp[9]; |
| 958 | |
| 959 | report->rds[V4L2_RDS_BLOCK_B].block = V4L2_RDS_BLOCK_B; |
| 960 | report->rds[V4L2_RDS_BLOCK_B].msb = resp[10]; |
| 961 | report->rds[V4L2_RDS_BLOCK_B].lsb = resp[11]; |
| 962 | |
| 963 | report->rds[V4L2_RDS_BLOCK_C].block = V4L2_RDS_BLOCK_C; |
| 964 | report->rds[V4L2_RDS_BLOCK_C].msb = resp[12]; |
| 965 | report->rds[V4L2_RDS_BLOCK_C].lsb = resp[13]; |
| 966 | |
| 967 | report->rds[V4L2_RDS_BLOCK_D].block = V4L2_RDS_BLOCK_D; |
| 968 | report->rds[V4L2_RDS_BLOCK_D].msb = resp[14]; |
| 969 | report->rds[V4L2_RDS_BLOCK_D].lsb = resp[15]; |
| 970 | |
| 971 | return err; |
| 972 | } |
| 973 | EXPORT_SYMBOL_GPL(si476x_core_cmd_fm_rds_status); |
| 974 | |
| 975 | int si476x_core_cmd_fm_rds_blockcount(struct si476x_core *core, |
| 976 | bool clear, |
| 977 | struct si476x_rds_blockcount_report *report) |
| 978 | { |
| 979 | int err; |
| 980 | u8 resp[CMD_FM_RDS_BLOCKCOUNT_NRESP]; |
| 981 | const u8 args[CMD_FM_RDS_BLOCKCOUNT_NARGS] = { |
| 982 | clear, |
| 983 | }; |
| 984 | |
| 985 | if (!report) |
| 986 | return -EINVAL; |
| 987 | |
| 988 | err = si476x_core_send_command(core, CMD_FM_RDS_BLOCKCOUNT, |
| 989 | args, ARRAY_SIZE(args), |
| 990 | resp, ARRAY_SIZE(resp), |
| 991 | SI476X_DEFAULT_TIMEOUT); |
| 992 | |
| 993 | if (!err) { |
| 994 | report->expected = be16_to_cpup((__be16 *)(resp + 2)); |
| 995 | report->received = be16_to_cpup((__be16 *)(resp + 4)); |
| 996 | report->uncorrectable = be16_to_cpup((__be16 *)(resp + 6)); |
| 997 | } |
| 998 | |
| 999 | return err; |
| 1000 | } |
| 1001 | EXPORT_SYMBOL_GPL(si476x_core_cmd_fm_rds_blockcount); |
| 1002 | |
| 1003 | int si476x_core_cmd_fm_phase_diversity(struct si476x_core *core, |
| 1004 | enum si476x_phase_diversity_mode mode) |
| 1005 | { |
| 1006 | u8 resp[CMD_FM_PHASE_DIVERSITY_NRESP]; |
| 1007 | const u8 args[CMD_FM_PHASE_DIVERSITY_NARGS] = { |
| 1008 | mode & 0b111, |
| 1009 | }; |
| 1010 | |
| 1011 | return si476x_core_send_command(core, CMD_FM_PHASE_DIVERSITY, |
| 1012 | args, ARRAY_SIZE(args), |
| 1013 | resp, ARRAY_SIZE(resp), |
| 1014 | SI476X_DEFAULT_TIMEOUT); |
| 1015 | } |
| 1016 | EXPORT_SYMBOL_GPL(si476x_core_cmd_fm_phase_diversity); |
| 1017 | /** |
| 1018 | * si476x_core_cmd_fm_phase_div_status() - get the phase diversity |
| 1019 | * status |
| 1020 | * |
| 1021 | * @core: si476x device |
| 1022 | * |
| 1023 | * NOTE caller must hold core lock |
| 1024 | * |
| 1025 | * Function returns the value of the status bit in case of success and |
| 1026 | * negative error code in case of failre. |
| 1027 | */ |
| 1028 | int si476x_core_cmd_fm_phase_div_status(struct si476x_core *core) |
| 1029 | { |
| 1030 | int err; |
| 1031 | u8 resp[CMD_FM_PHASE_DIV_STATUS_NRESP]; |
| 1032 | |
| 1033 | err = si476x_core_send_command(core, CMD_FM_PHASE_DIV_STATUS, |
| 1034 | NULL, 0, |
| 1035 | resp, ARRAY_SIZE(resp), |
| 1036 | SI476X_DEFAULT_TIMEOUT); |
| 1037 | |
| 1038 | return (err < 0) ? err : resp[1]; |
| 1039 | } |
| 1040 | EXPORT_SYMBOL_GPL(si476x_core_cmd_fm_phase_div_status); |
| 1041 | |
| 1042 | |
| 1043 | /** |
| 1044 | * si476x_cmd_am_seek_start - send 'FM_SEEK_START' command to the |
| 1045 | * device |
| 1046 | * @core - device to send the command to |
| 1047 | * @seekup - if set the direction of the search is 'up' |
| 1048 | * @wrap - if set seek wraps when hitting band limit |
| 1049 | * |
| 1050 | * This function begins search for a valid station. The station is |
| 1051 | * considered valid when 'FM_VALID_SNR_THRESHOLD' and |
| 1052 | * 'FM_VALID_RSSI_THRESHOLD' and 'FM_VALID_MAX_TUNE_ERROR' criteria |
| 1053 | * are met. |
| 1054 | * |
| 1055 | * Function returns 0 on success and negative error code on failure |
| 1056 | */ |
| 1057 | int si476x_core_cmd_am_seek_start(struct si476x_core *core, |
| 1058 | bool seekup, bool wrap) |
| 1059 | { |
| 1060 | u8 resp[CMD_AM_SEEK_START_NRESP]; |
| 1061 | const u8 args[CMD_AM_SEEK_START_NARGS] = { |
| 1062 | seekup << 3 | wrap << 2, |
| 1063 | }; |
| 1064 | |
| 1065 | return si476x_cmd_tune_seek_freq(core, CMD_AM_SEEK_START, |
| 1066 | args, sizeof(args), |
| 1067 | resp, sizeof(resp)); |
| 1068 | } |
| 1069 | EXPORT_SYMBOL_GPL(si476x_core_cmd_am_seek_start); |
| 1070 | |
| 1071 | |
| 1072 | |
| 1073 | static int si476x_core_cmd_power_up_a10(struct si476x_core *core, |
| 1074 | struct si476x_power_up_args *puargs) |
| 1075 | { |
| 1076 | u8 resp[CMD_POWER_UP_A10_NRESP]; |
| 1077 | const bool intsel = (core->pinmux.a1 == SI476X_A1_IRQ); |
| 1078 | const bool ctsen = (core->client->irq != 0); |
| 1079 | const u8 args[CMD_POWER_UP_A10_NARGS] = { |
| 1080 | 0xF7, /* Reserved, always 0xF7 */ |
| 1081 | 0x3F & puargs->xcload, /* First two bits are reserved to be |
| 1082 | * zeros */ |
| 1083 | ctsen << 7 | intsel << 6 | 0x07, /* Last five bits |
| 1084 | * are reserved to |
| 1085 | * be written as 0x7 */ |
| 1086 | puargs->func << 4 | puargs->freq, |
| 1087 | 0x11, /* Reserved, always 0x11 */ |
| 1088 | }; |
| 1089 | |
| 1090 | return si476x_core_send_command(core, CMD_POWER_UP, |
| 1091 | args, ARRAY_SIZE(args), |
| 1092 | resp, ARRAY_SIZE(resp), |
| 1093 | SI476X_TIMEOUT_POWER_UP); |
| 1094 | } |
| 1095 | |
| 1096 | static int si476x_core_cmd_power_up_a20(struct si476x_core *core, |
| 1097 | struct si476x_power_up_args *puargs) |
| 1098 | { |
| 1099 | u8 resp[CMD_POWER_UP_A20_NRESP]; |
| 1100 | const bool intsel = (core->pinmux.a1 == SI476X_A1_IRQ); |
| 1101 | const bool ctsen = (core->client->irq != 0); |
| 1102 | const u8 args[CMD_POWER_UP_A20_NARGS] = { |
| 1103 | puargs->ibias6x << 7 | puargs->xstart, |
| 1104 | 0x3F & puargs->xcload, /* First two bits are reserved to be |
| 1105 | * zeros */ |
| 1106 | ctsen << 7 | intsel << 6 | puargs->fastboot << 5 | |
| 1107 | puargs->xbiashc << 3 | puargs->xbias, |
| 1108 | puargs->func << 4 | puargs->freq, |
| 1109 | 0x10 | puargs->xmode, |
| 1110 | }; |
| 1111 | |
| 1112 | return si476x_core_send_command(core, CMD_POWER_UP, |
| 1113 | args, ARRAY_SIZE(args), |
| 1114 | resp, ARRAY_SIZE(resp), |
| 1115 | SI476X_TIMEOUT_POWER_UP); |
| 1116 | } |
| 1117 | |
| 1118 | static int si476x_core_cmd_power_down_a10(struct si476x_core *core, |
| 1119 | struct si476x_power_down_args *pdargs) |
| 1120 | { |
| 1121 | u8 resp[CMD_POWER_DOWN_A10_NRESP]; |
| 1122 | |
| 1123 | return si476x_core_send_command(core, CMD_POWER_DOWN, |
| 1124 | NULL, 0, |
| 1125 | resp, ARRAY_SIZE(resp), |
| 1126 | SI476X_DEFAULT_TIMEOUT); |
| 1127 | } |
| 1128 | |
| 1129 | static int si476x_core_cmd_power_down_a20(struct si476x_core *core, |
| 1130 | struct si476x_power_down_args *pdargs) |
| 1131 | { |
| 1132 | u8 resp[CMD_POWER_DOWN_A20_NRESP]; |
| 1133 | const u8 args[CMD_POWER_DOWN_A20_NARGS] = { |
| 1134 | pdargs->xosc, |
| 1135 | }; |
| 1136 | return si476x_core_send_command(core, CMD_POWER_DOWN, |
| 1137 | args, ARRAY_SIZE(args), |
| 1138 | resp, ARRAY_SIZE(resp), |
| 1139 | SI476X_DEFAULT_TIMEOUT); |
| 1140 | } |
| 1141 | |
| 1142 | static int si476x_core_cmd_am_tune_freq_a10(struct si476x_core *core, |
| 1143 | struct si476x_tune_freq_args *tuneargs) |
| 1144 | { |
| 1145 | |
| 1146 | const int am_freq = tuneargs->freq; |
| 1147 | u8 resp[CMD_AM_TUNE_FREQ_NRESP]; |
| 1148 | const u8 args[CMD_AM_TUNE_FREQ_NARGS] = { |
| 1149 | (tuneargs->hd << 6), |
| 1150 | msb(am_freq), |
| 1151 | lsb(am_freq), |
| 1152 | }; |
| 1153 | |
| 1154 | return si476x_cmd_tune_seek_freq(core, CMD_AM_TUNE_FREQ, args, |
| 1155 | sizeof(args), |
| 1156 | resp, sizeof(resp)); |
| 1157 | } |
| 1158 | |
| 1159 | static int si476x_core_cmd_am_tune_freq_a20(struct si476x_core *core, |
| 1160 | struct si476x_tune_freq_args *tuneargs) |
| 1161 | { |
| 1162 | const int am_freq = tuneargs->freq; |
| 1163 | u8 resp[CMD_AM_TUNE_FREQ_NRESP]; |
| 1164 | const u8 args[CMD_AM_TUNE_FREQ_NARGS] = { |
| 1165 | (tuneargs->zifsr << 6) | (tuneargs->injside & 0b11), |
| 1166 | msb(am_freq), |
| 1167 | lsb(am_freq), |
| 1168 | }; |
| 1169 | |
| 1170 | return si476x_cmd_tune_seek_freq(core, CMD_AM_TUNE_FREQ, |
| 1171 | args, sizeof(args), |
| 1172 | resp, sizeof(resp)); |
| 1173 | } |
| 1174 | |
| 1175 | static int si476x_core_cmd_fm_rsq_status_a10(struct si476x_core *core, |
| 1176 | struct si476x_rsq_status_args *rsqargs, |
| 1177 | struct si476x_rsq_status_report *report) |
| 1178 | { |
| 1179 | int err; |
| 1180 | u8 resp[CMD_FM_RSQ_STATUS_A10_NRESP]; |
| 1181 | const u8 args[CMD_FM_RSQ_STATUS_A10_NARGS] = { |
| 1182 | rsqargs->rsqack << 3 | rsqargs->attune << 2 | |
| 1183 | rsqargs->cancel << 1 | rsqargs->stcack, |
| 1184 | }; |
| 1185 | |
| 1186 | err = si476x_core_send_command(core, CMD_FM_RSQ_STATUS, |
| 1187 | args, ARRAY_SIZE(args), |
| 1188 | resp, ARRAY_SIZE(resp), |
| 1189 | SI476X_DEFAULT_TIMEOUT); |
| 1190 | /* |
| 1191 | * Besides getting received signal quality information this |
| 1192 | * command can be used to just acknowledge different interrupt |
| 1193 | * flags in those cases it is useless to copy and parse |
| 1194 | * received data so user can pass NULL, and thus avoid |
| 1195 | * unnecessary copying. |
| 1196 | */ |
| 1197 | if (err < 0 || report == NULL) |
| 1198 | return err; |
| 1199 | |
| 1200 | report->multhint = 0b10000000 & resp[1]; |
| 1201 | report->multlint = 0b01000000 & resp[1]; |
| 1202 | report->snrhint = 0b00001000 & resp[1]; |
| 1203 | report->snrlint = 0b00000100 & resp[1]; |
| 1204 | report->rssihint = 0b00000010 & resp[1]; |
| 1205 | report->rssilint = 0b00000001 & resp[1]; |
| 1206 | |
| 1207 | report->bltf = 0b10000000 & resp[2]; |
| 1208 | report->snr_ready = 0b00100000 & resp[2]; |
| 1209 | report->rssiready = 0b00001000 & resp[2]; |
| 1210 | report->afcrl = 0b00000010 & resp[2]; |
| 1211 | report->valid = 0b00000001 & resp[2]; |
| 1212 | |
| 1213 | report->readfreq = be16_to_cpup((__be16 *)(resp + 3)); |
| 1214 | report->freqoff = resp[5]; |
| 1215 | report->rssi = resp[6]; |
| 1216 | report->snr = resp[7]; |
| 1217 | report->lassi = resp[9]; |
| 1218 | report->hassi = resp[10]; |
| 1219 | report->mult = resp[11]; |
| 1220 | report->dev = resp[12]; |
| 1221 | report->readantcap = be16_to_cpup((__be16 *)(resp + 13)); |
| 1222 | report->assi = resp[15]; |
| 1223 | report->usn = resp[16]; |
| 1224 | |
| 1225 | return err; |
| 1226 | } |
| 1227 | |
| 1228 | static int si476x_core_cmd_fm_rsq_status_a20(struct si476x_core *core, |
| 1229 | struct si476x_rsq_status_args *rsqargs, |
| 1230 | struct si476x_rsq_status_report *report) |
| 1231 | { |
| 1232 | int err; |
| 1233 | u8 resp[CMD_FM_RSQ_STATUS_A10_NRESP]; |
| 1234 | const u8 args[CMD_FM_RSQ_STATUS_A30_NARGS] = { |
| 1235 | rsqargs->primary << 4 | rsqargs->rsqack << 3 | |
| 1236 | rsqargs->attune << 2 | rsqargs->cancel << 1 | |
| 1237 | rsqargs->stcack, |
| 1238 | }; |
| 1239 | |
| 1240 | err = si476x_core_send_command(core, CMD_FM_RSQ_STATUS, |
| 1241 | args, ARRAY_SIZE(args), |
| 1242 | resp, ARRAY_SIZE(resp), |
| 1243 | SI476X_DEFAULT_TIMEOUT); |
| 1244 | /* |
| 1245 | * Besides getting received signal quality information this |
| 1246 | * command can be used to just acknowledge different interrupt |
| 1247 | * flags in those cases it is useless to copy and parse |
| 1248 | * received data so user can pass NULL, and thus avoid |
| 1249 | * unnecessary copying. |
| 1250 | */ |
| 1251 | if (err < 0 || report == NULL) |
| 1252 | return err; |
| 1253 | |
| 1254 | report->multhint = 0b10000000 & resp[1]; |
| 1255 | report->multlint = 0b01000000 & resp[1]; |
| 1256 | report->snrhint = 0b00001000 & resp[1]; |
| 1257 | report->snrlint = 0b00000100 & resp[1]; |
| 1258 | report->rssihint = 0b00000010 & resp[1]; |
| 1259 | report->rssilint = 0b00000001 & resp[1]; |
| 1260 | |
| 1261 | report->bltf = 0b10000000 & resp[2]; |
| 1262 | report->snr_ready = 0b00100000 & resp[2]; |
| 1263 | report->rssiready = 0b00001000 & resp[2]; |
| 1264 | report->afcrl = 0b00000010 & resp[2]; |
| 1265 | report->valid = 0b00000001 & resp[2]; |
| 1266 | |
| 1267 | report->readfreq = be16_to_cpup((__be16 *)(resp + 3)); |
| 1268 | report->freqoff = resp[5]; |
| 1269 | report->rssi = resp[6]; |
| 1270 | report->snr = resp[7]; |
| 1271 | report->lassi = resp[9]; |
| 1272 | report->hassi = resp[10]; |
| 1273 | report->mult = resp[11]; |
| 1274 | report->dev = resp[12]; |
| 1275 | report->readantcap = be16_to_cpup((__be16 *)(resp + 13)); |
| 1276 | report->assi = resp[15]; |
| 1277 | report->usn = resp[16]; |
| 1278 | |
| 1279 | return err; |
| 1280 | } |
| 1281 | |
| 1282 | |
| 1283 | static int si476x_core_cmd_fm_rsq_status_a30(struct si476x_core *core, |
| 1284 | struct si476x_rsq_status_args *rsqargs, |
| 1285 | struct si476x_rsq_status_report *report) |
| 1286 | { |
| 1287 | int err; |
| 1288 | u8 resp[CMD_FM_RSQ_STATUS_A30_NRESP]; |
| 1289 | const u8 args[CMD_FM_RSQ_STATUS_A30_NARGS] = { |
| 1290 | rsqargs->primary << 4 | rsqargs->rsqack << 3 | |
| 1291 | rsqargs->attune << 2 | rsqargs->cancel << 1 | |
| 1292 | rsqargs->stcack, |
| 1293 | }; |
| 1294 | |
| 1295 | err = si476x_core_send_command(core, CMD_FM_RSQ_STATUS, |
| 1296 | args, ARRAY_SIZE(args), |
| 1297 | resp, ARRAY_SIZE(resp), |
| 1298 | SI476X_DEFAULT_TIMEOUT); |
| 1299 | /* |
| 1300 | * Besides getting received signal quality information this |
| 1301 | * command can be used to just acknowledge different interrupt |
| 1302 | * flags in those cases it is useless to copy and parse |
| 1303 | * received data so user can pass NULL, and thus avoid |
| 1304 | * unnecessary copying. |
| 1305 | */ |
| 1306 | if (err < 0 || report == NULL) |
| 1307 | return err; |
| 1308 | |
| 1309 | report->multhint = 0b10000000 & resp[1]; |
| 1310 | report->multlint = 0b01000000 & resp[1]; |
| 1311 | report->snrhint = 0b00001000 & resp[1]; |
| 1312 | report->snrlint = 0b00000100 & resp[1]; |
| 1313 | report->rssihint = 0b00000010 & resp[1]; |
| 1314 | report->rssilint = 0b00000001 & resp[1]; |
| 1315 | |
| 1316 | report->bltf = 0b10000000 & resp[2]; |
| 1317 | report->snr_ready = 0b00100000 & resp[2]; |
| 1318 | report->rssiready = 0b00001000 & resp[2]; |
| 1319 | report->injside = 0b00000100 & resp[2]; |
| 1320 | report->afcrl = 0b00000010 & resp[2]; |
| 1321 | report->valid = 0b00000001 & resp[2]; |
| 1322 | |
| 1323 | report->readfreq = be16_to_cpup((__be16 *)(resp + 3)); |
| 1324 | report->freqoff = resp[5]; |
| 1325 | report->rssi = resp[6]; |
| 1326 | report->snr = resp[7]; |
| 1327 | report->issi = resp[8]; |
| 1328 | report->lassi = resp[9]; |
| 1329 | report->hassi = resp[10]; |
| 1330 | report->mult = resp[11]; |
| 1331 | report->dev = resp[12]; |
| 1332 | report->readantcap = be16_to_cpup((__be16 *)(resp + 13)); |
| 1333 | report->assi = resp[15]; |
| 1334 | report->usn = resp[16]; |
| 1335 | |
| 1336 | report->pilotdev = resp[17]; |
| 1337 | report->rdsdev = resp[18]; |
| 1338 | report->assidev = resp[19]; |
| 1339 | report->strongdev = resp[20]; |
| 1340 | report->rdspi = be16_to_cpup((__be16 *)(resp + 21)); |
| 1341 | |
| 1342 | return err; |
| 1343 | } |
| 1344 | |
| 1345 | static int si476x_core_cmd_fm_tune_freq_a10(struct si476x_core *core, |
| 1346 | struct si476x_tune_freq_args *tuneargs) |
| 1347 | { |
| 1348 | u8 resp[CMD_FM_TUNE_FREQ_NRESP]; |
| 1349 | const u8 args[CMD_FM_TUNE_FREQ_A10_NARGS] = { |
| 1350 | (tuneargs->hd << 6) | (tuneargs->tunemode << 4) |
| 1351 | | (tuneargs->smoothmetrics << 2), |
| 1352 | msb(tuneargs->freq), |
| 1353 | lsb(tuneargs->freq), |
| 1354 | msb(tuneargs->antcap), |
| 1355 | lsb(tuneargs->antcap) |
| 1356 | }; |
| 1357 | |
| 1358 | return si476x_cmd_tune_seek_freq(core, CMD_FM_TUNE_FREQ, |
| 1359 | args, sizeof(args), |
| 1360 | resp, sizeof(resp)); |
| 1361 | } |
| 1362 | |
| 1363 | static int si476x_core_cmd_fm_tune_freq_a20(struct si476x_core *core, |
| 1364 | struct si476x_tune_freq_args *tuneargs) |
| 1365 | { |
| 1366 | u8 resp[CMD_FM_TUNE_FREQ_NRESP]; |
| 1367 | const u8 args[CMD_FM_TUNE_FREQ_A20_NARGS] = { |
| 1368 | (tuneargs->hd << 6) | (tuneargs->tunemode << 4) |
| 1369 | | (tuneargs->smoothmetrics << 2) | (tuneargs->injside), |
| 1370 | msb(tuneargs->freq), |
| 1371 | lsb(tuneargs->freq), |
| 1372 | }; |
| 1373 | |
| 1374 | return si476x_cmd_tune_seek_freq(core, CMD_FM_TUNE_FREQ, |
| 1375 | args, sizeof(args), |
| 1376 | resp, sizeof(resp)); |
| 1377 | } |
| 1378 | |
| 1379 | static int si476x_core_cmd_agc_status_a20(struct si476x_core *core, |
| 1380 | struct si476x_agc_status_report *report) |
| 1381 | { |
| 1382 | int err; |
| 1383 | u8 resp[CMD_AGC_STATUS_NRESP_A20]; |
| 1384 | |
| 1385 | if (!report) |
| 1386 | return -EINVAL; |
| 1387 | |
| 1388 | err = si476x_core_send_command(core, CMD_AGC_STATUS, |
| 1389 | NULL, 0, |
| 1390 | resp, ARRAY_SIZE(resp), |
| 1391 | SI476X_DEFAULT_TIMEOUT); |
| 1392 | if (err < 0) |
| 1393 | return err; |
| 1394 | |
| 1395 | report->mxhi = resp[1] & SI476X_AGC_MXHI; |
| 1396 | report->mxlo = resp[1] & SI476X_AGC_MXLO; |
| 1397 | report->lnahi = resp[1] & SI476X_AGC_LNAHI; |
| 1398 | report->lnalo = resp[1] & SI476X_AGC_LNALO; |
| 1399 | report->fmagc1 = resp[2]; |
| 1400 | report->fmagc2 = resp[3]; |
| 1401 | report->pgagain = resp[4]; |
| 1402 | report->fmwblang = resp[5]; |
| 1403 | |
| 1404 | return err; |
| 1405 | } |
| 1406 | |
| 1407 | static int si476x_core_cmd_agc_status_a10(struct si476x_core *core, |
| 1408 | struct si476x_agc_status_report *report) |
| 1409 | { |
| 1410 | int err; |
| 1411 | u8 resp[CMD_AGC_STATUS_NRESP_A10]; |
| 1412 | |
| 1413 | if (!report) |
| 1414 | return -EINVAL; |
| 1415 | |
| 1416 | err = si476x_core_send_command(core, CMD_AGC_STATUS, |
| 1417 | NULL, 0, |
| 1418 | resp, ARRAY_SIZE(resp), |
| 1419 | SI476X_DEFAULT_TIMEOUT); |
| 1420 | if (err < 0) |
| 1421 | return err; |
| 1422 | |
| 1423 | report->mxhi = resp[1] & SI476X_AGC_MXHI; |
| 1424 | report->mxlo = resp[1] & SI476X_AGC_MXLO; |
| 1425 | report->lnahi = resp[1] & SI476X_AGC_LNAHI; |
| 1426 | report->lnalo = resp[1] & SI476X_AGC_LNALO; |
| 1427 | |
| 1428 | return err; |
| 1429 | } |
| 1430 | |
| 1431 | typedef int (*tune_freq_func_t) (struct si476x_core *core, |
| 1432 | struct si476x_tune_freq_args *tuneargs); |
| 1433 | |
| 1434 | static struct { |
| 1435 | int (*power_up) (struct si476x_core *, |
| 1436 | struct si476x_power_up_args *); |
| 1437 | int (*power_down) (struct si476x_core *, |
| 1438 | struct si476x_power_down_args *); |
| 1439 | |
| 1440 | tune_freq_func_t fm_tune_freq; |
| 1441 | tune_freq_func_t am_tune_freq; |
| 1442 | |
| 1443 | int (*fm_rsq_status)(struct si476x_core *, |
| 1444 | struct si476x_rsq_status_args *, |
| 1445 | struct si476x_rsq_status_report *); |
| 1446 | |
| 1447 | int (*agc_status)(struct si476x_core *, |
| 1448 | struct si476x_agc_status_report *); |
| 1449 | int (*intb_pin_cfg)(struct si476x_core *core, |
| 1450 | enum si476x_intb_config intb, |
| 1451 | enum si476x_a1_config a1); |
| 1452 | } si476x_cmds_vtable[] = { |
| 1453 | [SI476X_REVISION_A10] = { |
| 1454 | .power_up = si476x_core_cmd_power_up_a10, |
| 1455 | .power_down = si476x_core_cmd_power_down_a10, |
| 1456 | .fm_tune_freq = si476x_core_cmd_fm_tune_freq_a10, |
| 1457 | .am_tune_freq = si476x_core_cmd_am_tune_freq_a10, |
| 1458 | .fm_rsq_status = si476x_core_cmd_fm_rsq_status_a10, |
| 1459 | .agc_status = si476x_core_cmd_agc_status_a10, |
| 1460 | .intb_pin_cfg = si476x_core_cmd_intb_pin_cfg_a10, |
| 1461 | }, |
| 1462 | [SI476X_REVISION_A20] = { |
| 1463 | .power_up = si476x_core_cmd_power_up_a20, |
| 1464 | .power_down = si476x_core_cmd_power_down_a20, |
| 1465 | .fm_tune_freq = si476x_core_cmd_fm_tune_freq_a20, |
| 1466 | .am_tune_freq = si476x_core_cmd_am_tune_freq_a20, |
| 1467 | .fm_rsq_status = si476x_core_cmd_fm_rsq_status_a20, |
| 1468 | .agc_status = si476x_core_cmd_agc_status_a20, |
| 1469 | .intb_pin_cfg = si476x_core_cmd_intb_pin_cfg_a20, |
| 1470 | }, |
| 1471 | [SI476X_REVISION_A30] = { |
| 1472 | .power_up = si476x_core_cmd_power_up_a20, |
| 1473 | .power_down = si476x_core_cmd_power_down_a20, |
| 1474 | .fm_tune_freq = si476x_core_cmd_fm_tune_freq_a20, |
| 1475 | .am_tune_freq = si476x_core_cmd_am_tune_freq_a20, |
| 1476 | .fm_rsq_status = si476x_core_cmd_fm_rsq_status_a30, |
| 1477 | .agc_status = si476x_core_cmd_agc_status_a20, |
| 1478 | .intb_pin_cfg = si476x_core_cmd_intb_pin_cfg_a20, |
| 1479 | }, |
| 1480 | }; |
| 1481 | |
| 1482 | int si476x_core_cmd_power_up(struct si476x_core *core, |
| 1483 | struct si476x_power_up_args *args) |
| 1484 | { |
| 1485 | BUG_ON(core->revision > SI476X_REVISION_A30 || |
| 1486 | core->revision == -1); |
| 1487 | return si476x_cmds_vtable[core->revision].power_up(core, args); |
| 1488 | } |
| 1489 | EXPORT_SYMBOL_GPL(si476x_core_cmd_power_up); |
| 1490 | |
| 1491 | int si476x_core_cmd_power_down(struct si476x_core *core, |
| 1492 | struct si476x_power_down_args *args) |
| 1493 | { |
| 1494 | BUG_ON(core->revision > SI476X_REVISION_A30 || |
| 1495 | core->revision == -1); |
| 1496 | return si476x_cmds_vtable[core->revision].power_down(core, args); |
| 1497 | } |
| 1498 | EXPORT_SYMBOL_GPL(si476x_core_cmd_power_down); |
| 1499 | |
| 1500 | int si476x_core_cmd_fm_tune_freq(struct si476x_core *core, |
| 1501 | struct si476x_tune_freq_args *args) |
| 1502 | { |
| 1503 | BUG_ON(core->revision > SI476X_REVISION_A30 || |
| 1504 | core->revision == -1); |
| 1505 | return si476x_cmds_vtable[core->revision].fm_tune_freq(core, args); |
| 1506 | } |
| 1507 | EXPORT_SYMBOL_GPL(si476x_core_cmd_fm_tune_freq); |
| 1508 | |
| 1509 | int si476x_core_cmd_am_tune_freq(struct si476x_core *core, |
| 1510 | struct si476x_tune_freq_args *args) |
| 1511 | { |
| 1512 | BUG_ON(core->revision > SI476X_REVISION_A30 || |
| 1513 | core->revision == -1); |
| 1514 | return si476x_cmds_vtable[core->revision].am_tune_freq(core, args); |
| 1515 | } |
| 1516 | EXPORT_SYMBOL_GPL(si476x_core_cmd_am_tune_freq); |
| 1517 | |
| 1518 | int si476x_core_cmd_fm_rsq_status(struct si476x_core *core, |
| 1519 | struct si476x_rsq_status_args *args, |
| 1520 | struct si476x_rsq_status_report *report) |
| 1521 | |
| 1522 | { |
| 1523 | BUG_ON(core->revision > SI476X_REVISION_A30 || |
| 1524 | core->revision == -1); |
| 1525 | return si476x_cmds_vtable[core->revision].fm_rsq_status(core, args, |
| 1526 | report); |
| 1527 | } |
| 1528 | EXPORT_SYMBOL_GPL(si476x_core_cmd_fm_rsq_status); |
| 1529 | |
| 1530 | int si476x_core_cmd_agc_status(struct si476x_core *core, |
| 1531 | struct si476x_agc_status_report *report) |
| 1532 | |
| 1533 | { |
| 1534 | BUG_ON(core->revision > SI476X_REVISION_A30 || |
| 1535 | core->revision == -1); |
| 1536 | return si476x_cmds_vtable[core->revision].agc_status(core, report); |
| 1537 | } |
| 1538 | EXPORT_SYMBOL_GPL(si476x_core_cmd_agc_status); |
| 1539 | |
| 1540 | int si476x_core_cmd_intb_pin_cfg(struct si476x_core *core, |
| 1541 | enum si476x_intb_config intb, |
| 1542 | enum si476x_a1_config a1) |
| 1543 | { |
| 1544 | BUG_ON(core->revision > SI476X_REVISION_A30 || |
| 1545 | core->revision == -1); |
| 1546 | |
| 1547 | return si476x_cmds_vtable[core->revision].intb_pin_cfg(core, intb, a1); |
| 1548 | } |
| 1549 | EXPORT_SYMBOL_GPL(si476x_core_cmd_intb_pin_cfg); |
| 1550 | |
| 1551 | MODULE_LICENSE("GPL"); |
| 1552 | MODULE_AUTHOR("Andrey Smirnov <andrew.smirnov@gmail.com>"); |
| 1553 | MODULE_DESCRIPTION("API for command exchange for si476x"); |