1 // SPDX-License-Identifier: GPL-2.0-only 2 /* 3 * wm_adsp.c -- Wolfson ADSP support 4 * 5 * Copyright 2012 Wolfson Microelectronics plc 6 * 7 * Author: Mark Brown <broonie@opensource.wolfsonmicro.com> 8 */ 9 10 #include <linux/ctype.h> 11 #include <linux/module.h> 12 #include <linux/moduleparam.h> 13 #include <linux/init.h> 14 #include <linux/delay.h> 15 #include <linux/firmware.h> 16 #include <linux/list.h> 17 #include <linux/pm.h> 18 #include <linux/regmap.h> 19 #include <linux/regulator/consumer.h> 20 #include <linux/slab.h> 21 #include <linux/vmalloc.h> 22 #include <linux/workqueue.h> 23 #include <linux/debugfs.h> 24 #include <sound/core.h> 25 #include <sound/pcm.h> 26 #include <sound/pcm_params.h> 27 #include <sound/soc.h> 28 #include <sound/jack.h> 29 #include <sound/initval.h> 30 #include <sound/tlv.h> 31 32 #include "wm_adsp.h" 33 34 #define adsp_crit(_dsp, fmt, ...) \ 35 dev_crit(_dsp->cs_dsp.dev, "%s: " fmt, _dsp->cs_dsp.name, ##__VA_ARGS__) 36 #define adsp_err(_dsp, fmt, ...) \ 37 dev_err(_dsp->cs_dsp.dev, "%s: " fmt, _dsp->cs_dsp.name, ##__VA_ARGS__) 38 #define adsp_warn(_dsp, fmt, ...) \ 39 dev_warn(_dsp->cs_dsp.dev, "%s: " fmt, _dsp->cs_dsp.name, ##__VA_ARGS__) 40 #define adsp_info(_dsp, fmt, ...) \ 41 dev_info(_dsp->cs_dsp.dev, "%s: " fmt, _dsp->cs_dsp.name, ##__VA_ARGS__) 42 #define adsp_dbg(_dsp, fmt, ...) \ 43 dev_dbg(_dsp->cs_dsp.dev, "%s: " fmt, _dsp->cs_dsp.name, ##__VA_ARGS__) 44 45 #define compr_err(_obj, fmt, ...) \ 46 adsp_err(_obj->dsp, "%s: " fmt, _obj->name ? _obj->name : "legacy", \ 47 ##__VA_ARGS__) 48 #define compr_dbg(_obj, fmt, ...) \ 49 adsp_dbg(_obj->dsp, "%s: " fmt, _obj->name ? _obj->name : "legacy", \ 50 ##__VA_ARGS__) 51 52 #define ADSP_MAX_STD_CTRL_SIZE 512 53 54 static const struct cs_dsp_client_ops wm_adsp1_client_ops; 55 static const struct cs_dsp_client_ops wm_adsp2_client_ops; 56 57 #define WM_ADSP_FW_MBC_VSS 0 58 #define WM_ADSP_FW_HIFI 1 59 #define WM_ADSP_FW_TX 2 60 #define WM_ADSP_FW_TX_SPK 3 61 #define WM_ADSP_FW_RX 4 62 #define WM_ADSP_FW_RX_ANC 5 63 #define WM_ADSP_FW_CTRL 6 64 #define WM_ADSP_FW_ASR 7 65 #define WM_ADSP_FW_TRACE 8 66 #define WM_ADSP_FW_SPK_PROT 9 67 #define WM_ADSP_FW_SPK_CALI 10 68 #define WM_ADSP_FW_SPK_DIAG 11 69 #define WM_ADSP_FW_MISC 12 70 71 #define WM_ADSP_NUM_FW 13 72 73 static const char *wm_adsp_fw_text[WM_ADSP_NUM_FW] = { 74 [WM_ADSP_FW_MBC_VSS] = "MBC/VSS", 75 [WM_ADSP_FW_HIFI] = "MasterHiFi", 76 [WM_ADSP_FW_TX] = "Tx", 77 [WM_ADSP_FW_TX_SPK] = "Tx Speaker", 78 [WM_ADSP_FW_RX] = "Rx", 79 [WM_ADSP_FW_RX_ANC] = "Rx ANC", 80 [WM_ADSP_FW_CTRL] = "Voice Ctrl", 81 [WM_ADSP_FW_ASR] = "ASR Assist", 82 [WM_ADSP_FW_TRACE] = "Dbg Trace", 83 [WM_ADSP_FW_SPK_PROT] = "Protection", 84 [WM_ADSP_FW_SPK_CALI] = "Calibration", 85 [WM_ADSP_FW_SPK_DIAG] = "Diagnostic", 86 [WM_ADSP_FW_MISC] = "Misc", 87 }; 88 89 struct wm_adsp_system_config_xm_hdr { 90 __be32 sys_enable; 91 __be32 fw_id; 92 __be32 fw_rev; 93 __be32 boot_status; 94 __be32 watchdog; 95 __be32 dma_buffer_size; 96 __be32 rdma[6]; 97 __be32 wdma[8]; 98 __be32 build_job_name[3]; 99 __be32 build_job_number; 100 } __packed; 101 102 struct wm_halo_system_config_xm_hdr { 103 __be32 halo_heartbeat; 104 __be32 build_job_name[3]; 105 __be32 build_job_number; 106 } __packed; 107 108 struct wm_adsp_alg_xm_struct { 109 __be32 magic; 110 __be32 smoothing; 111 __be32 threshold; 112 __be32 host_buf_ptr; 113 __be32 start_seq; 114 __be32 high_water_mark; 115 __be32 low_water_mark; 116 __be64 smoothed_power; 117 } __packed; 118 119 struct wm_adsp_host_buf_coeff_v1 { 120 __be32 host_buf_ptr; /* Host buffer pointer */ 121 __be32 versions; /* Version numbers */ 122 __be32 name[4]; /* The buffer name */ 123 } __packed; 124 125 struct wm_adsp_buffer { 126 __be32 buf1_base; /* Base addr of first buffer area */ 127 __be32 buf1_size; /* Size of buf1 area in DSP words */ 128 __be32 buf2_base; /* Base addr of 2nd buffer area */ 129 __be32 buf1_buf2_size; /* Size of buf1+buf2 in DSP words */ 130 __be32 buf3_base; /* Base addr of buf3 area */ 131 __be32 buf_total_size; /* Size of buf1+buf2+buf3 in DSP words */ 132 __be32 high_water_mark; /* Point at which IRQ is asserted */ 133 __be32 irq_count; /* bits 1-31 count IRQ assertions */ 134 __be32 irq_ack; /* acked IRQ count, bit 0 enables IRQ */ 135 __be32 next_write_index; /* word index of next write */ 136 __be32 next_read_index; /* word index of next read */ 137 __be32 error; /* error if any */ 138 __be32 oldest_block_index; /* word index of oldest surviving */ 139 __be32 requested_rewind; /* how many blocks rewind was done */ 140 __be32 reserved_space; /* internal */ 141 __be32 min_free; /* min free space since stream start */ 142 __be32 blocks_written[2]; /* total blocks written (64 bit) */ 143 __be32 words_written[2]; /* total words written (64 bit) */ 144 } __packed; 145 146 struct wm_adsp_compr; 147 148 struct wm_adsp_compr_buf { 149 struct list_head list; 150 struct wm_adsp *dsp; 151 struct wm_adsp_compr *compr; 152 153 struct wm_adsp_buffer_region *regions; 154 u32 host_buf_ptr; 155 156 u32 error; 157 u32 irq_count; 158 int read_index; 159 int avail; 160 int host_buf_mem_type; 161 162 char *name; 163 }; 164 165 struct wm_adsp_compr { 166 struct list_head list; 167 struct wm_adsp *dsp; 168 struct wm_adsp_compr_buf *buf; 169 170 struct snd_compr_stream *stream; 171 struct snd_compressed_buffer size; 172 173 u32 *raw_buf; 174 unsigned int copied_total; 175 176 unsigned int sample_rate; 177 178 const char *name; 179 }; 180 181 #define WM_ADSP_MIN_FRAGMENTS 1 182 #define WM_ADSP_MAX_FRAGMENTS 256 183 #define WM_ADSP_MIN_FRAGMENT_SIZE (16 * CS_DSP_DATA_WORD_SIZE) 184 #define WM_ADSP_MAX_FRAGMENT_SIZE (4096 * CS_DSP_DATA_WORD_SIZE) 185 186 #define WM_ADSP_ALG_XM_STRUCT_MAGIC 0x49aec7 187 188 #define HOST_BUFFER_FIELD(field) \ 189 (offsetof(struct wm_adsp_buffer, field) / sizeof(__be32)) 190 191 #define ALG_XM_FIELD(field) \ 192 (offsetof(struct wm_adsp_alg_xm_struct, field) / sizeof(__be32)) 193 194 #define HOST_BUF_COEFF_SUPPORTED_COMPAT_VER 1 195 196 #define HOST_BUF_COEFF_COMPAT_VER_MASK 0xFF00 197 #define HOST_BUF_COEFF_COMPAT_VER_SHIFT 8 198 199 static int wm_adsp_buffer_init(struct wm_adsp *dsp); 200 static int wm_adsp_buffer_free(struct wm_adsp *dsp); 201 202 struct wm_adsp_buffer_region { 203 unsigned int offset; 204 unsigned int cumulative_size; 205 unsigned int mem_type; 206 unsigned int base_addr; 207 }; 208 209 struct wm_adsp_buffer_region_def { 210 unsigned int mem_type; 211 unsigned int base_offset; 212 unsigned int size_offset; 213 }; 214 215 static const struct wm_adsp_buffer_region_def default_regions[] = { 216 { 217 .mem_type = WMFW_ADSP2_XM, 218 .base_offset = HOST_BUFFER_FIELD(buf1_base), 219 .size_offset = HOST_BUFFER_FIELD(buf1_size), 220 }, 221 { 222 .mem_type = WMFW_ADSP2_XM, 223 .base_offset = HOST_BUFFER_FIELD(buf2_base), 224 .size_offset = HOST_BUFFER_FIELD(buf1_buf2_size), 225 }, 226 { 227 .mem_type = WMFW_ADSP2_YM, 228 .base_offset = HOST_BUFFER_FIELD(buf3_base), 229 .size_offset = HOST_BUFFER_FIELD(buf_total_size), 230 }, 231 }; 232 233 struct wm_adsp_fw_caps { 234 u32 id; 235 struct snd_codec_desc desc; 236 int num_regions; 237 const struct wm_adsp_buffer_region_def *region_defs; 238 }; 239 240 static const struct wm_adsp_fw_caps ctrl_caps[] = { 241 { 242 .id = SND_AUDIOCODEC_BESPOKE, 243 .desc = { 244 .max_ch = 8, 245 .sample_rates = { 16000 }, 246 .num_sample_rates = 1, 247 .formats = SNDRV_PCM_FMTBIT_S16_LE, 248 }, 249 .num_regions = ARRAY_SIZE(default_regions), 250 .region_defs = default_regions, 251 }, 252 }; 253 254 static const struct wm_adsp_fw_caps trace_caps[] = { 255 { 256 .id = SND_AUDIOCODEC_BESPOKE, 257 .desc = { 258 .max_ch = 8, 259 .sample_rates = { 260 4000, 8000, 11025, 12000, 16000, 22050, 261 24000, 32000, 44100, 48000, 64000, 88200, 262 96000, 176400, 192000 263 }, 264 .num_sample_rates = 15, 265 .formats = SNDRV_PCM_FMTBIT_S16_LE, 266 }, 267 .num_regions = ARRAY_SIZE(default_regions), 268 .region_defs = default_regions, 269 }, 270 }; 271 272 static const struct { 273 const char *file; 274 int compr_direction; 275 int num_caps; 276 const struct wm_adsp_fw_caps *caps; 277 bool voice_trigger; 278 } wm_adsp_fw[WM_ADSP_NUM_FW] = { 279 [WM_ADSP_FW_MBC_VSS] = { .file = "mbc-vss" }, 280 [WM_ADSP_FW_HIFI] = { .file = "hifi" }, 281 [WM_ADSP_FW_TX] = { .file = "tx" }, 282 [WM_ADSP_FW_TX_SPK] = { .file = "tx-spk" }, 283 [WM_ADSP_FW_RX] = { .file = "rx" }, 284 [WM_ADSP_FW_RX_ANC] = { .file = "rx-anc" }, 285 [WM_ADSP_FW_CTRL] = { 286 .file = "ctrl", 287 .compr_direction = SND_COMPRESS_CAPTURE, 288 .num_caps = ARRAY_SIZE(ctrl_caps), 289 .caps = ctrl_caps, 290 .voice_trigger = true, 291 }, 292 [WM_ADSP_FW_ASR] = { .file = "asr" }, 293 [WM_ADSP_FW_TRACE] = { 294 .file = "trace", 295 .compr_direction = SND_COMPRESS_CAPTURE, 296 .num_caps = ARRAY_SIZE(trace_caps), 297 .caps = trace_caps, 298 }, 299 [WM_ADSP_FW_SPK_PROT] = { 300 .file = "spk-prot", 301 .compr_direction = SND_COMPRESS_CAPTURE, 302 .num_caps = ARRAY_SIZE(trace_caps), 303 .caps = trace_caps, 304 }, 305 [WM_ADSP_FW_SPK_CALI] = { .file = "spk-cali" }, 306 [WM_ADSP_FW_SPK_DIAG] = { .file = "spk-diag" }, 307 [WM_ADSP_FW_MISC] = { .file = "misc" }, 308 }; 309 310 struct wm_coeff_ctl { 311 const char *name; 312 struct cs_dsp_coeff_ctl *cs_ctl; 313 struct soc_bytes_ext bytes_ext; 314 struct work_struct work; 315 }; 316 317 int wm_adsp_fw_get(struct snd_kcontrol *kcontrol, 318 struct snd_ctl_elem_value *ucontrol) 319 { 320 struct snd_soc_component *component = snd_soc_kcontrol_component(kcontrol); 321 struct soc_enum *e = (struct soc_enum *)kcontrol->private_value; 322 struct wm_adsp *dsp = snd_soc_component_get_drvdata(component); 323 324 ucontrol->value.enumerated.item[0] = dsp[e->shift_l].fw; 325 326 return 0; 327 } 328 EXPORT_SYMBOL_GPL(wm_adsp_fw_get); 329 330 int wm_adsp_fw_put(struct snd_kcontrol *kcontrol, 331 struct snd_ctl_elem_value *ucontrol) 332 { 333 struct snd_soc_component *component = snd_soc_kcontrol_component(kcontrol); 334 struct soc_enum *e = (struct soc_enum *)kcontrol->private_value; 335 struct wm_adsp *dsp = snd_soc_component_get_drvdata(component); 336 int ret = 1; 337 338 if (ucontrol->value.enumerated.item[0] == dsp[e->shift_l].fw) 339 return 0; 340 341 if (ucontrol->value.enumerated.item[0] >= WM_ADSP_NUM_FW) 342 return -EINVAL; 343 344 mutex_lock(&dsp[e->shift_l].cs_dsp.pwr_lock); 345 346 if (dsp[e->shift_l].cs_dsp.booted || !list_empty(&dsp[e->shift_l].compr_list)) 347 ret = -EBUSY; 348 else 349 dsp[e->shift_l].fw = ucontrol->value.enumerated.item[0]; 350 351 mutex_unlock(&dsp[e->shift_l].cs_dsp.pwr_lock); 352 353 return ret; 354 } 355 EXPORT_SYMBOL_GPL(wm_adsp_fw_put); 356 357 const struct soc_enum wm_adsp_fw_enum[] = { 358 SOC_ENUM_SINGLE(0, 0, ARRAY_SIZE(wm_adsp_fw_text), wm_adsp_fw_text), 359 SOC_ENUM_SINGLE(0, 1, ARRAY_SIZE(wm_adsp_fw_text), wm_adsp_fw_text), 360 SOC_ENUM_SINGLE(0, 2, ARRAY_SIZE(wm_adsp_fw_text), wm_adsp_fw_text), 361 SOC_ENUM_SINGLE(0, 3, ARRAY_SIZE(wm_adsp_fw_text), wm_adsp_fw_text), 362 SOC_ENUM_SINGLE(0, 4, ARRAY_SIZE(wm_adsp_fw_text), wm_adsp_fw_text), 363 SOC_ENUM_SINGLE(0, 5, ARRAY_SIZE(wm_adsp_fw_text), wm_adsp_fw_text), 364 SOC_ENUM_SINGLE(0, 6, ARRAY_SIZE(wm_adsp_fw_text), wm_adsp_fw_text), 365 }; 366 EXPORT_SYMBOL_GPL(wm_adsp_fw_enum); 367 368 static inline struct wm_coeff_ctl *bytes_ext_to_ctl(struct soc_bytes_ext *ext) 369 { 370 return container_of(ext, struct wm_coeff_ctl, bytes_ext); 371 } 372 373 static int wm_coeff_info(struct snd_kcontrol *kctl, 374 struct snd_ctl_elem_info *uinfo) 375 { 376 struct soc_bytes_ext *bytes_ext = 377 (struct soc_bytes_ext *)kctl->private_value; 378 struct wm_coeff_ctl *ctl = bytes_ext_to_ctl(bytes_ext); 379 struct cs_dsp_coeff_ctl *cs_ctl = ctl->cs_ctl; 380 381 switch (cs_ctl->type) { 382 case WMFW_CTL_TYPE_ACKED: 383 uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER; 384 uinfo->value.integer.min = CS_DSP_ACKED_CTL_MIN_VALUE; 385 uinfo->value.integer.max = CS_DSP_ACKED_CTL_MAX_VALUE; 386 uinfo->value.integer.step = 1; 387 uinfo->count = 1; 388 break; 389 default: 390 uinfo->type = SNDRV_CTL_ELEM_TYPE_BYTES; 391 uinfo->count = cs_ctl->len; 392 break; 393 } 394 395 return 0; 396 } 397 398 static int wm_coeff_put(struct snd_kcontrol *kctl, 399 struct snd_ctl_elem_value *ucontrol) 400 { 401 struct soc_bytes_ext *bytes_ext = 402 (struct soc_bytes_ext *)kctl->private_value; 403 struct wm_coeff_ctl *ctl = bytes_ext_to_ctl(bytes_ext); 404 struct cs_dsp_coeff_ctl *cs_ctl = ctl->cs_ctl; 405 char *p = ucontrol->value.bytes.data; 406 int ret = 0; 407 408 mutex_lock(&cs_ctl->dsp->pwr_lock); 409 ret = cs_dsp_coeff_write_ctrl(cs_ctl, 0, p, cs_ctl->len); 410 mutex_unlock(&cs_ctl->dsp->pwr_lock); 411 412 return ret; 413 } 414 415 static int wm_coeff_tlv_put(struct snd_kcontrol *kctl, 416 const unsigned int __user *bytes, unsigned int size) 417 { 418 struct soc_bytes_ext *bytes_ext = 419 (struct soc_bytes_ext *)kctl->private_value; 420 struct wm_coeff_ctl *ctl = bytes_ext_to_ctl(bytes_ext); 421 struct cs_dsp_coeff_ctl *cs_ctl = ctl->cs_ctl; 422 void *scratch; 423 int ret = 0; 424 425 scratch = vmalloc(size); 426 if (!scratch) 427 return -ENOMEM; 428 429 if (copy_from_user(scratch, bytes, size)) { 430 ret = -EFAULT; 431 } else { 432 mutex_lock(&cs_ctl->dsp->pwr_lock); 433 ret = cs_dsp_coeff_write_ctrl(cs_ctl, 0, scratch, size); 434 mutex_unlock(&cs_ctl->dsp->pwr_lock); 435 } 436 vfree(scratch); 437 438 return ret; 439 } 440 441 static int wm_coeff_put_acked(struct snd_kcontrol *kctl, 442 struct snd_ctl_elem_value *ucontrol) 443 { 444 struct soc_bytes_ext *bytes_ext = 445 (struct soc_bytes_ext *)kctl->private_value; 446 struct wm_coeff_ctl *ctl = bytes_ext_to_ctl(bytes_ext); 447 struct cs_dsp_coeff_ctl *cs_ctl = ctl->cs_ctl; 448 unsigned int val = ucontrol->value.integer.value[0]; 449 int ret; 450 451 if (val == 0) 452 return 0; /* 0 means no event */ 453 454 mutex_lock(&cs_ctl->dsp->pwr_lock); 455 456 if (cs_ctl->enabled) 457 ret = cs_dsp_coeff_write_acked_control(cs_ctl, val); 458 else 459 ret = -EPERM; 460 461 mutex_unlock(&cs_ctl->dsp->pwr_lock); 462 463 if (ret < 0) 464 return ret; 465 466 return 1; 467 } 468 469 static int wm_coeff_get(struct snd_kcontrol *kctl, 470 struct snd_ctl_elem_value *ucontrol) 471 { 472 struct soc_bytes_ext *bytes_ext = 473 (struct soc_bytes_ext *)kctl->private_value; 474 struct wm_coeff_ctl *ctl = bytes_ext_to_ctl(bytes_ext); 475 struct cs_dsp_coeff_ctl *cs_ctl = ctl->cs_ctl; 476 char *p = ucontrol->value.bytes.data; 477 int ret; 478 479 mutex_lock(&cs_ctl->dsp->pwr_lock); 480 ret = cs_dsp_coeff_read_ctrl(cs_ctl, 0, p, cs_ctl->len); 481 mutex_unlock(&cs_ctl->dsp->pwr_lock); 482 483 return ret; 484 } 485 486 static int wm_coeff_tlv_get(struct snd_kcontrol *kctl, 487 unsigned int __user *bytes, unsigned int size) 488 { 489 struct soc_bytes_ext *bytes_ext = 490 (struct soc_bytes_ext *)kctl->private_value; 491 struct wm_coeff_ctl *ctl = bytes_ext_to_ctl(bytes_ext); 492 struct cs_dsp_coeff_ctl *cs_ctl = ctl->cs_ctl; 493 int ret = 0; 494 495 mutex_lock(&cs_ctl->dsp->pwr_lock); 496 497 ret = cs_dsp_coeff_read_ctrl(cs_ctl, 0, cs_ctl->cache, size); 498 499 if (!ret && copy_to_user(bytes, cs_ctl->cache, size)) 500 ret = -EFAULT; 501 502 mutex_unlock(&cs_ctl->dsp->pwr_lock); 503 504 return ret; 505 } 506 507 static int wm_coeff_get_acked(struct snd_kcontrol *kcontrol, 508 struct snd_ctl_elem_value *ucontrol) 509 { 510 /* 511 * Although it's not useful to read an acked control, we must satisfy 512 * user-side assumptions that all controls are readable and that a 513 * write of the same value should be filtered out (it's valid to send 514 * the same event number again to the firmware). We therefore return 0, 515 * meaning "no event" so valid event numbers will always be a change 516 */ 517 ucontrol->value.integer.value[0] = 0; 518 519 return 0; 520 } 521 522 static unsigned int wmfw_convert_flags(unsigned int in, unsigned int len) 523 { 524 unsigned int out, rd, wr, vol; 525 526 if (len > ADSP_MAX_STD_CTRL_SIZE) { 527 rd = SNDRV_CTL_ELEM_ACCESS_TLV_READ; 528 wr = SNDRV_CTL_ELEM_ACCESS_TLV_WRITE; 529 vol = SNDRV_CTL_ELEM_ACCESS_VOLATILE; 530 531 out = SNDRV_CTL_ELEM_ACCESS_TLV_CALLBACK; 532 } else { 533 rd = SNDRV_CTL_ELEM_ACCESS_READ; 534 wr = SNDRV_CTL_ELEM_ACCESS_WRITE; 535 vol = SNDRV_CTL_ELEM_ACCESS_VOLATILE; 536 537 out = 0; 538 } 539 540 if (in) { 541 out |= rd; 542 if (in & WMFW_CTL_FLAG_WRITEABLE) 543 out |= wr; 544 if (in & WMFW_CTL_FLAG_VOLATILE) 545 out |= vol; 546 } else { 547 out |= rd | wr | vol; 548 } 549 550 return out; 551 } 552 553 static void wm_adsp_ctl_work(struct work_struct *work) 554 { 555 struct wm_coeff_ctl *ctl = container_of(work, 556 struct wm_coeff_ctl, 557 work); 558 struct cs_dsp_coeff_ctl *cs_ctl = ctl->cs_ctl; 559 struct wm_adsp *dsp = container_of(cs_ctl->dsp, 560 struct wm_adsp, 561 cs_dsp); 562 struct snd_kcontrol_new *kcontrol; 563 564 kcontrol = kzalloc(sizeof(*kcontrol), GFP_KERNEL); 565 if (!kcontrol) 566 return; 567 568 kcontrol->name = ctl->name; 569 kcontrol->info = wm_coeff_info; 570 kcontrol->iface = SNDRV_CTL_ELEM_IFACE_MIXER; 571 kcontrol->tlv.c = snd_soc_bytes_tlv_callback; 572 kcontrol->private_value = (unsigned long)&ctl->bytes_ext; 573 kcontrol->access = wmfw_convert_flags(cs_ctl->flags, cs_ctl->len); 574 575 switch (cs_ctl->type) { 576 case WMFW_CTL_TYPE_ACKED: 577 kcontrol->get = wm_coeff_get_acked; 578 kcontrol->put = wm_coeff_put_acked; 579 break; 580 default: 581 if (kcontrol->access & SNDRV_CTL_ELEM_ACCESS_TLV_CALLBACK) { 582 ctl->bytes_ext.max = cs_ctl->len; 583 ctl->bytes_ext.get = wm_coeff_tlv_get; 584 ctl->bytes_ext.put = wm_coeff_tlv_put; 585 } else { 586 kcontrol->get = wm_coeff_get; 587 kcontrol->put = wm_coeff_put; 588 } 589 break; 590 } 591 592 snd_soc_add_component_controls(dsp->component, kcontrol, 1); 593 594 kfree(kcontrol); 595 } 596 597 static int wm_adsp_control_add(struct cs_dsp_coeff_ctl *cs_ctl) 598 { 599 struct wm_adsp *dsp = container_of(cs_ctl->dsp, struct wm_adsp, cs_dsp); 600 struct cs_dsp *cs_dsp = &dsp->cs_dsp; 601 struct wm_coeff_ctl *ctl; 602 char name[SNDRV_CTL_ELEM_ID_NAME_MAXLEN]; 603 const char *region_name; 604 int ret; 605 606 if (cs_ctl->flags & WMFW_CTL_FLAG_SYS) 607 return 0; 608 609 region_name = cs_dsp_mem_region_name(cs_ctl->alg_region.type); 610 if (!region_name) { 611 adsp_err(dsp, "Unknown region type: %d\n", cs_ctl->alg_region.type); 612 return -EINVAL; 613 } 614 615 switch (cs_dsp->fw_ver) { 616 case 0: 617 case 1: 618 ret = scnprintf(name, SNDRV_CTL_ELEM_ID_NAME_MAXLEN, 619 "%s %s %x", cs_dsp->name, region_name, 620 cs_ctl->alg_region.alg); 621 break; 622 case 2: 623 ret = scnprintf(name, SNDRV_CTL_ELEM_ID_NAME_MAXLEN, 624 "%s%c %.12s %x", cs_dsp->name, *region_name, 625 wm_adsp_fw_text[dsp->fw], cs_ctl->alg_region.alg); 626 break; 627 default: 628 ret = scnprintf(name, SNDRV_CTL_ELEM_ID_NAME_MAXLEN, 629 "%s %.12s %x", cs_dsp->name, 630 wm_adsp_fw_text[dsp->fw], cs_ctl->alg_region.alg); 631 break; 632 } 633 634 if (cs_ctl->subname) { 635 int avail = SNDRV_CTL_ELEM_ID_NAME_MAXLEN - ret - 2; 636 int skip = 0; 637 638 if (dsp->component->name_prefix) 639 avail -= strlen(dsp->component->name_prefix) + 1; 640 641 /* Truncate the subname from the start if it is too long */ 642 if (cs_ctl->subname_len > avail) 643 skip = cs_ctl->subname_len - avail; 644 645 snprintf(name + ret, SNDRV_CTL_ELEM_ID_NAME_MAXLEN - ret, 646 " %.*s", cs_ctl->subname_len - skip, cs_ctl->subname + skip); 647 } 648 649 ctl = kzalloc(sizeof(*ctl), GFP_KERNEL); 650 if (!ctl) 651 return -ENOMEM; 652 ctl->cs_ctl = cs_ctl; 653 654 ctl->name = kmemdup(name, strlen(name) + 1, GFP_KERNEL); 655 if (!ctl->name) { 656 ret = -ENOMEM; 657 goto err_ctl; 658 } 659 660 cs_ctl->priv = ctl; 661 662 INIT_WORK(&ctl->work, wm_adsp_ctl_work); 663 schedule_work(&ctl->work); 664 665 return 0; 666 667 err_ctl: 668 kfree(ctl); 669 670 return ret; 671 } 672 673 static void wm_adsp_control_remove(struct cs_dsp_coeff_ctl *cs_ctl) 674 { 675 struct wm_coeff_ctl *ctl = cs_ctl->priv; 676 677 cancel_work_sync(&ctl->work); 678 679 kfree(ctl->name); 680 kfree(ctl); 681 } 682 683 int wm_adsp_write_ctl(struct wm_adsp *dsp, const char *name, int type, 684 unsigned int alg, void *buf, size_t len) 685 { 686 struct cs_dsp_coeff_ctl *cs_ctl = cs_dsp_get_ctl(&dsp->cs_dsp, name, type, alg); 687 struct wm_coeff_ctl *ctl; 688 int ret; 689 690 ret = cs_dsp_coeff_write_ctrl(cs_ctl, 0, buf, len); 691 if (ret < 0) 692 return ret; 693 694 if (ret == 0 || (cs_ctl->flags & WMFW_CTL_FLAG_SYS)) 695 return 0; 696 697 ctl = cs_ctl->priv; 698 699 return snd_soc_component_notify_control(dsp->component, ctl->name); 700 } 701 EXPORT_SYMBOL_GPL(wm_adsp_write_ctl); 702 703 int wm_adsp_read_ctl(struct wm_adsp *dsp, const char *name, int type, 704 unsigned int alg, void *buf, size_t len) 705 { 706 return cs_dsp_coeff_read_ctrl(cs_dsp_get_ctl(&dsp->cs_dsp, name, type, alg), 707 0, buf, len); 708 } 709 EXPORT_SYMBOL_GPL(wm_adsp_read_ctl); 710 711 static void wm_adsp_release_firmware_files(struct wm_adsp *dsp, 712 const struct firmware *wmfw_firmware, 713 char *wmfw_filename, 714 const struct firmware *coeff_firmware, 715 char *coeff_filename) 716 { 717 if (wmfw_firmware) 718 release_firmware(wmfw_firmware); 719 kfree(wmfw_filename); 720 721 if (coeff_firmware) 722 release_firmware(coeff_firmware); 723 kfree(coeff_filename); 724 } 725 726 static int wm_adsp_request_firmware_file(struct wm_adsp *dsp, 727 const struct firmware **firmware, char **filename, 728 const char *dir, const char *system_name, 729 const char *asoc_component_prefix, 730 const char *filetype) 731 { 732 struct cs_dsp *cs_dsp = &dsp->cs_dsp; 733 char *s, c; 734 int ret = 0; 735 736 if (system_name && asoc_component_prefix) 737 *filename = kasprintf(GFP_KERNEL, "%s%s-%s-%s-%s-%s.%s", dir, dsp->part, 738 dsp->fwf_name, wm_adsp_fw[dsp->fw].file, system_name, 739 asoc_component_prefix, filetype); 740 else if (system_name) 741 *filename = kasprintf(GFP_KERNEL, "%s%s-%s-%s-%s.%s", dir, dsp->part, 742 dsp->fwf_name, wm_adsp_fw[dsp->fw].file, system_name, 743 filetype); 744 else 745 *filename = kasprintf(GFP_KERNEL, "%s%s-%s-%s.%s", dir, dsp->part, dsp->fwf_name, 746 wm_adsp_fw[dsp->fw].file, filetype); 747 748 if (*filename == NULL) 749 return -ENOMEM; 750 751 /* 752 * Make sure that filename is lower-case and any non alpha-numeric 753 * characters except full stop and forward slash are replaced with 754 * hyphens. 755 */ 756 s = *filename; 757 while (*s) { 758 c = *s; 759 if (isalnum(c)) 760 *s = tolower(c); 761 else if ((c != '.') && (c != '/')) 762 *s = '-'; 763 s++; 764 } 765 766 ret = firmware_request_nowarn(firmware, *filename, cs_dsp->dev); 767 if (ret != 0) { 768 adsp_dbg(dsp, "Failed to request '%s'\n", *filename); 769 kfree(*filename); 770 *filename = NULL; 771 } else { 772 adsp_dbg(dsp, "Found '%s'\n", *filename); 773 } 774 775 return ret; 776 } 777 778 static const char *cirrus_dir = "cirrus/"; 779 static int wm_adsp_request_firmware_files(struct wm_adsp *dsp, 780 const struct firmware **wmfw_firmware, 781 char **wmfw_filename, 782 const struct firmware **coeff_firmware, 783 char **coeff_filename) 784 { 785 const char *system_name = dsp->system_name; 786 const char *asoc_component_prefix = dsp->component->name_prefix; 787 int ret = 0; 788 789 if (system_name && asoc_component_prefix) { 790 if (!wm_adsp_request_firmware_file(dsp, wmfw_firmware, wmfw_filename, 791 cirrus_dir, system_name, 792 asoc_component_prefix, "wmfw")) { 793 wm_adsp_request_firmware_file(dsp, coeff_firmware, coeff_filename, 794 cirrus_dir, system_name, 795 asoc_component_prefix, "bin"); 796 return 0; 797 } 798 } 799 800 if (system_name) { 801 if (!wm_adsp_request_firmware_file(dsp, wmfw_firmware, wmfw_filename, 802 cirrus_dir, system_name, 803 NULL, "wmfw")) { 804 if (asoc_component_prefix) 805 wm_adsp_request_firmware_file(dsp, coeff_firmware, coeff_filename, 806 cirrus_dir, system_name, 807 asoc_component_prefix, "bin"); 808 809 if (!*coeff_firmware) 810 wm_adsp_request_firmware_file(dsp, coeff_firmware, coeff_filename, 811 cirrus_dir, system_name, 812 NULL, "bin"); 813 return 0; 814 } 815 } 816 817 if (!wm_adsp_request_firmware_file(dsp, wmfw_firmware, wmfw_filename, 818 "", NULL, NULL, "wmfw")) { 819 wm_adsp_request_firmware_file(dsp, coeff_firmware, coeff_filename, 820 "", NULL, NULL, "bin"); 821 return 0; 822 } 823 824 ret = wm_adsp_request_firmware_file(dsp, wmfw_firmware, wmfw_filename, 825 cirrus_dir, NULL, NULL, "wmfw"); 826 if (!ret) { 827 wm_adsp_request_firmware_file(dsp, coeff_firmware, coeff_filename, 828 cirrus_dir, NULL, NULL, "bin"); 829 return 0; 830 } 831 832 if (dsp->wmfw_optional) { 833 if (system_name) { 834 if (asoc_component_prefix) 835 wm_adsp_request_firmware_file(dsp, coeff_firmware, coeff_filename, 836 cirrus_dir, system_name, 837 asoc_component_prefix, "bin"); 838 839 if (!*coeff_firmware) 840 wm_adsp_request_firmware_file(dsp, coeff_firmware, coeff_filename, 841 cirrus_dir, system_name, 842 NULL, "bin"); 843 } 844 845 if (!*coeff_firmware) 846 wm_adsp_request_firmware_file(dsp, coeff_firmware, coeff_filename, 847 "", NULL, NULL, "bin"); 848 849 if (!*coeff_firmware) 850 wm_adsp_request_firmware_file(dsp, coeff_firmware, coeff_filename, 851 cirrus_dir, NULL, NULL, "bin"); 852 853 return 0; 854 } 855 856 adsp_err(dsp, "Failed to request firmware <%s>%s-%s-%s<-%s<%s>>.wmfw\n", 857 cirrus_dir, dsp->part, dsp->fwf_name, wm_adsp_fw[dsp->fw].file, 858 system_name, asoc_component_prefix); 859 860 return -ENOENT; 861 } 862 863 static int wm_adsp_common_init(struct wm_adsp *dsp) 864 { 865 char *p; 866 867 INIT_LIST_HEAD(&dsp->compr_list); 868 INIT_LIST_HEAD(&dsp->buffer_list); 869 870 if (!dsp->fwf_name) { 871 p = devm_kstrdup(dsp->cs_dsp.dev, dsp->cs_dsp.name, GFP_KERNEL); 872 if (!p) 873 return -ENOMEM; 874 875 dsp->fwf_name = p; 876 for (; *p != 0; ++p) 877 *p = tolower(*p); 878 } 879 880 return 0; 881 } 882 883 int wm_adsp1_init(struct wm_adsp *dsp) 884 { 885 int ret; 886 887 dsp->cs_dsp.client_ops = &wm_adsp1_client_ops; 888 889 ret = cs_dsp_adsp1_init(&dsp->cs_dsp); 890 if (ret) 891 return ret; 892 893 return wm_adsp_common_init(dsp); 894 } 895 EXPORT_SYMBOL_GPL(wm_adsp1_init); 896 897 int wm_adsp1_event(struct snd_soc_dapm_widget *w, 898 struct snd_kcontrol *kcontrol, 899 int event) 900 { 901 struct snd_soc_component *component = snd_soc_dapm_to_component(w->dapm); 902 struct wm_adsp *dsps = snd_soc_component_get_drvdata(component); 903 struct wm_adsp *dsp = &dsps[w->shift]; 904 int ret = 0; 905 char *wmfw_filename = NULL; 906 const struct firmware *wmfw_firmware = NULL; 907 char *coeff_filename = NULL; 908 const struct firmware *coeff_firmware = NULL; 909 910 dsp->component = component; 911 912 switch (event) { 913 case SND_SOC_DAPM_POST_PMU: 914 ret = wm_adsp_request_firmware_files(dsp, 915 &wmfw_firmware, &wmfw_filename, 916 &coeff_firmware, &coeff_filename); 917 if (ret) 918 break; 919 920 ret = cs_dsp_adsp1_power_up(&dsp->cs_dsp, 921 wmfw_firmware, wmfw_filename, 922 coeff_firmware, coeff_filename, 923 wm_adsp_fw_text[dsp->fw]); 924 925 wm_adsp_release_firmware_files(dsp, 926 wmfw_firmware, wmfw_filename, 927 coeff_firmware, coeff_filename); 928 break; 929 case SND_SOC_DAPM_PRE_PMD: 930 cs_dsp_adsp1_power_down(&dsp->cs_dsp); 931 break; 932 default: 933 break; 934 } 935 936 return ret; 937 } 938 EXPORT_SYMBOL_GPL(wm_adsp1_event); 939 940 int wm_adsp2_set_dspclk(struct snd_soc_dapm_widget *w, unsigned int freq) 941 { 942 struct snd_soc_component *component = snd_soc_dapm_to_component(w->dapm); 943 struct wm_adsp *dsps = snd_soc_component_get_drvdata(component); 944 struct wm_adsp *dsp = &dsps[w->shift]; 945 946 return cs_dsp_set_dspclk(&dsp->cs_dsp, freq); 947 } 948 EXPORT_SYMBOL_GPL(wm_adsp2_set_dspclk); 949 950 int wm_adsp2_preloader_get(struct snd_kcontrol *kcontrol, 951 struct snd_ctl_elem_value *ucontrol) 952 { 953 struct snd_soc_component *component = snd_soc_kcontrol_component(kcontrol); 954 struct wm_adsp *dsps = snd_soc_component_get_drvdata(component); 955 struct soc_mixer_control *mc = 956 (struct soc_mixer_control *)kcontrol->private_value; 957 struct wm_adsp *dsp = &dsps[mc->shift - 1]; 958 959 ucontrol->value.integer.value[0] = dsp->preloaded; 960 961 return 0; 962 } 963 EXPORT_SYMBOL_GPL(wm_adsp2_preloader_get); 964 965 int wm_adsp2_preloader_put(struct snd_kcontrol *kcontrol, 966 struct snd_ctl_elem_value *ucontrol) 967 { 968 struct snd_soc_component *component = snd_soc_kcontrol_component(kcontrol); 969 struct wm_adsp *dsps = snd_soc_component_get_drvdata(component); 970 struct snd_soc_dapm_context *dapm = snd_soc_component_get_dapm(component); 971 struct soc_mixer_control *mc = 972 (struct soc_mixer_control *)kcontrol->private_value; 973 struct wm_adsp *dsp = &dsps[mc->shift - 1]; 974 char preload[32]; 975 976 if (dsp->preloaded == ucontrol->value.integer.value[0]) 977 return 0; 978 979 snprintf(preload, ARRAY_SIZE(preload), "%s Preload", dsp->cs_dsp.name); 980 981 if (ucontrol->value.integer.value[0] || dsp->toggle_preload) 982 snd_soc_component_force_enable_pin(component, preload); 983 else 984 snd_soc_component_disable_pin(component, preload); 985 986 snd_soc_dapm_sync(dapm); 987 988 flush_work(&dsp->boot_work); 989 990 dsp->preloaded = ucontrol->value.integer.value[0]; 991 992 if (dsp->toggle_preload) { 993 snd_soc_component_disable_pin(component, preload); 994 snd_soc_dapm_sync(dapm); 995 } 996 997 return 1; 998 } 999 EXPORT_SYMBOL_GPL(wm_adsp2_preloader_put); 1000 1001 int wm_adsp_power_up(struct wm_adsp *dsp, bool load_firmware) 1002 { 1003 int ret = 0; 1004 char *wmfw_filename = NULL; 1005 const struct firmware *wmfw_firmware = NULL; 1006 char *coeff_filename = NULL; 1007 const struct firmware *coeff_firmware = NULL; 1008 1009 if (load_firmware) { 1010 ret = wm_adsp_request_firmware_files(dsp, 1011 &wmfw_firmware, &wmfw_filename, 1012 &coeff_firmware, &coeff_filename); 1013 if (ret) 1014 return ret; 1015 } 1016 1017 ret = cs_dsp_power_up(&dsp->cs_dsp, 1018 wmfw_firmware, wmfw_filename, 1019 coeff_firmware, coeff_filename, 1020 wm_adsp_fw_text[dsp->fw]); 1021 1022 wm_adsp_release_firmware_files(dsp, 1023 wmfw_firmware, wmfw_filename, 1024 coeff_firmware, coeff_filename); 1025 1026 return ret; 1027 } 1028 EXPORT_SYMBOL_GPL(wm_adsp_power_up); 1029 1030 void wm_adsp_power_down(struct wm_adsp *dsp) 1031 { 1032 cs_dsp_power_down(&dsp->cs_dsp); 1033 } 1034 EXPORT_SYMBOL_GPL(wm_adsp_power_down); 1035 1036 static void wm_adsp_boot_work(struct work_struct *work) 1037 { 1038 struct wm_adsp *dsp = container_of(work, 1039 struct wm_adsp, 1040 boot_work); 1041 1042 wm_adsp_power_up(dsp, true); 1043 } 1044 1045 int wm_adsp_early_event(struct snd_soc_dapm_widget *w, 1046 struct snd_kcontrol *kcontrol, int event) 1047 { 1048 struct snd_soc_component *component = snd_soc_dapm_to_component(w->dapm); 1049 struct wm_adsp *dsps = snd_soc_component_get_drvdata(component); 1050 struct wm_adsp *dsp = &dsps[w->shift]; 1051 1052 switch (event) { 1053 case SND_SOC_DAPM_PRE_PMU: 1054 queue_work(system_unbound_wq, &dsp->boot_work); 1055 break; 1056 case SND_SOC_DAPM_PRE_PMD: 1057 wm_adsp_power_down(dsp); 1058 break; 1059 default: 1060 break; 1061 } 1062 1063 return 0; 1064 } 1065 EXPORT_SYMBOL_GPL(wm_adsp_early_event); 1066 1067 static int wm_adsp_pre_run(struct cs_dsp *cs_dsp) 1068 { 1069 struct wm_adsp *dsp = container_of(cs_dsp, struct wm_adsp, cs_dsp); 1070 1071 if (!dsp->pre_run) 1072 return 0; 1073 1074 return (*dsp->pre_run)(dsp); 1075 } 1076 1077 static int wm_adsp_event_post_run(struct cs_dsp *cs_dsp) 1078 { 1079 struct wm_adsp *dsp = container_of(cs_dsp, struct wm_adsp, cs_dsp); 1080 1081 if (wm_adsp_fw[dsp->fw].num_caps != 0) 1082 return wm_adsp_buffer_init(dsp); 1083 1084 return 0; 1085 } 1086 1087 static void wm_adsp_event_post_stop(struct cs_dsp *cs_dsp) 1088 { 1089 struct wm_adsp *dsp = container_of(cs_dsp, struct wm_adsp, cs_dsp); 1090 1091 if (wm_adsp_fw[dsp->fw].num_caps != 0) 1092 wm_adsp_buffer_free(dsp); 1093 1094 dsp->fatal_error = false; 1095 } 1096 1097 int wm_adsp_event(struct snd_soc_dapm_widget *w, 1098 struct snd_kcontrol *kcontrol, int event) 1099 { 1100 struct snd_soc_component *component = snd_soc_dapm_to_component(w->dapm); 1101 struct wm_adsp *dsps = snd_soc_component_get_drvdata(component); 1102 struct wm_adsp *dsp = &dsps[w->shift]; 1103 int ret = 0; 1104 1105 switch (event) { 1106 case SND_SOC_DAPM_POST_PMU: 1107 flush_work(&dsp->boot_work); 1108 ret = cs_dsp_run(&dsp->cs_dsp); 1109 break; 1110 case SND_SOC_DAPM_PRE_PMD: 1111 cs_dsp_stop(&dsp->cs_dsp); 1112 break; 1113 default: 1114 break; 1115 } 1116 1117 return ret; 1118 } 1119 EXPORT_SYMBOL_GPL(wm_adsp_event); 1120 1121 int wm_adsp2_component_probe(struct wm_adsp *dsp, struct snd_soc_component *component) 1122 { 1123 char preload[32]; 1124 1125 if (!dsp->cs_dsp.no_core_startstop) { 1126 snprintf(preload, ARRAY_SIZE(preload), "%s Preload", dsp->cs_dsp.name); 1127 snd_soc_component_disable_pin(component, preload); 1128 } 1129 1130 cs_dsp_init_debugfs(&dsp->cs_dsp, component->debugfs_root); 1131 1132 dsp->component = component; 1133 1134 return 0; 1135 } 1136 EXPORT_SYMBOL_GPL(wm_adsp2_component_probe); 1137 1138 int wm_adsp2_component_remove(struct wm_adsp *dsp, struct snd_soc_component *component) 1139 { 1140 cs_dsp_cleanup_debugfs(&dsp->cs_dsp); 1141 1142 return 0; 1143 } 1144 EXPORT_SYMBOL_GPL(wm_adsp2_component_remove); 1145 1146 int wm_adsp2_init(struct wm_adsp *dsp) 1147 { 1148 int ret; 1149 1150 INIT_WORK(&dsp->boot_work, wm_adsp_boot_work); 1151 1152 dsp->sys_config_size = sizeof(struct wm_adsp_system_config_xm_hdr); 1153 dsp->cs_dsp.client_ops = &wm_adsp2_client_ops; 1154 1155 ret = cs_dsp_adsp2_init(&dsp->cs_dsp); 1156 if (ret) 1157 return ret; 1158 1159 return wm_adsp_common_init(dsp); 1160 } 1161 EXPORT_SYMBOL_GPL(wm_adsp2_init); 1162 1163 int wm_halo_init(struct wm_adsp *dsp) 1164 { 1165 int ret; 1166 1167 INIT_WORK(&dsp->boot_work, wm_adsp_boot_work); 1168 1169 dsp->sys_config_size = sizeof(struct wm_halo_system_config_xm_hdr); 1170 dsp->cs_dsp.client_ops = &wm_adsp2_client_ops; 1171 1172 ret = cs_dsp_halo_init(&dsp->cs_dsp); 1173 if (ret) 1174 return ret; 1175 1176 return wm_adsp_common_init(dsp); 1177 } 1178 EXPORT_SYMBOL_GPL(wm_halo_init); 1179 1180 void wm_adsp2_remove(struct wm_adsp *dsp) 1181 { 1182 cs_dsp_remove(&dsp->cs_dsp); 1183 } 1184 EXPORT_SYMBOL_GPL(wm_adsp2_remove); 1185 1186 static inline int wm_adsp_compr_attached(struct wm_adsp_compr *compr) 1187 { 1188 return compr->buf != NULL; 1189 } 1190 1191 static int wm_adsp_compr_attach(struct wm_adsp_compr *compr) 1192 { 1193 struct wm_adsp_compr_buf *buf = NULL, *tmp; 1194 1195 if (compr->dsp->fatal_error) 1196 return -EINVAL; 1197 1198 list_for_each_entry(tmp, &compr->dsp->buffer_list, list) { 1199 if (!tmp->name || !strcmp(compr->name, tmp->name)) { 1200 buf = tmp; 1201 break; 1202 } 1203 } 1204 1205 if (!buf) 1206 return -EINVAL; 1207 1208 compr->buf = buf; 1209 buf->compr = compr; 1210 1211 return 0; 1212 } 1213 1214 static void wm_adsp_compr_detach(struct wm_adsp_compr *compr) 1215 { 1216 if (!compr) 1217 return; 1218 1219 /* Wake the poll so it can see buffer is no longer attached */ 1220 if (compr->stream) 1221 snd_compr_fragment_elapsed(compr->stream); 1222 1223 if (wm_adsp_compr_attached(compr)) { 1224 compr->buf->compr = NULL; 1225 compr->buf = NULL; 1226 } 1227 } 1228 1229 int wm_adsp_compr_open(struct wm_adsp *dsp, struct snd_compr_stream *stream) 1230 { 1231 struct wm_adsp_compr *compr, *tmp; 1232 struct snd_soc_pcm_runtime *rtd = stream->private_data; 1233 int ret = 0; 1234 1235 mutex_lock(&dsp->cs_dsp.pwr_lock); 1236 1237 if (wm_adsp_fw[dsp->fw].num_caps == 0) { 1238 adsp_err(dsp, "%s: Firmware does not support compressed API\n", 1239 asoc_rtd_to_codec(rtd, 0)->name); 1240 ret = -ENXIO; 1241 goto out; 1242 } 1243 1244 if (wm_adsp_fw[dsp->fw].compr_direction != stream->direction) { 1245 adsp_err(dsp, "%s: Firmware does not support stream direction\n", 1246 asoc_rtd_to_codec(rtd, 0)->name); 1247 ret = -EINVAL; 1248 goto out; 1249 } 1250 1251 list_for_each_entry(tmp, &dsp->compr_list, list) { 1252 if (!strcmp(tmp->name, asoc_rtd_to_codec(rtd, 0)->name)) { 1253 adsp_err(dsp, "%s: Only a single stream supported per dai\n", 1254 asoc_rtd_to_codec(rtd, 0)->name); 1255 ret = -EBUSY; 1256 goto out; 1257 } 1258 } 1259 1260 compr = kzalloc(sizeof(*compr), GFP_KERNEL); 1261 if (!compr) { 1262 ret = -ENOMEM; 1263 goto out; 1264 } 1265 1266 compr->dsp = dsp; 1267 compr->stream = stream; 1268 compr->name = asoc_rtd_to_codec(rtd, 0)->name; 1269 1270 list_add_tail(&compr->list, &dsp->compr_list); 1271 1272 stream->runtime->private_data = compr; 1273 1274 out: 1275 mutex_unlock(&dsp->cs_dsp.pwr_lock); 1276 1277 return ret; 1278 } 1279 EXPORT_SYMBOL_GPL(wm_adsp_compr_open); 1280 1281 int wm_adsp_compr_free(struct snd_soc_component *component, 1282 struct snd_compr_stream *stream) 1283 { 1284 struct wm_adsp_compr *compr = stream->runtime->private_data; 1285 struct wm_adsp *dsp = compr->dsp; 1286 1287 mutex_lock(&dsp->cs_dsp.pwr_lock); 1288 1289 wm_adsp_compr_detach(compr); 1290 list_del(&compr->list); 1291 1292 kfree(compr->raw_buf); 1293 kfree(compr); 1294 1295 mutex_unlock(&dsp->cs_dsp.pwr_lock); 1296 1297 return 0; 1298 } 1299 EXPORT_SYMBOL_GPL(wm_adsp_compr_free); 1300 1301 static int wm_adsp_compr_check_params(struct snd_compr_stream *stream, 1302 struct snd_compr_params *params) 1303 { 1304 struct wm_adsp_compr *compr = stream->runtime->private_data; 1305 struct wm_adsp *dsp = compr->dsp; 1306 const struct wm_adsp_fw_caps *caps; 1307 const struct snd_codec_desc *desc; 1308 int i, j; 1309 1310 if (params->buffer.fragment_size < WM_ADSP_MIN_FRAGMENT_SIZE || 1311 params->buffer.fragment_size > WM_ADSP_MAX_FRAGMENT_SIZE || 1312 params->buffer.fragments < WM_ADSP_MIN_FRAGMENTS || 1313 params->buffer.fragments > WM_ADSP_MAX_FRAGMENTS || 1314 params->buffer.fragment_size % CS_DSP_DATA_WORD_SIZE) { 1315 compr_err(compr, "Invalid buffer fragsize=%d fragments=%d\n", 1316 params->buffer.fragment_size, 1317 params->buffer.fragments); 1318 1319 return -EINVAL; 1320 } 1321 1322 for (i = 0; i < wm_adsp_fw[dsp->fw].num_caps; i++) { 1323 caps = &wm_adsp_fw[dsp->fw].caps[i]; 1324 desc = &caps->desc; 1325 1326 if (caps->id != params->codec.id) 1327 continue; 1328 1329 if (stream->direction == SND_COMPRESS_PLAYBACK) { 1330 if (desc->max_ch < params->codec.ch_out) 1331 continue; 1332 } else { 1333 if (desc->max_ch < params->codec.ch_in) 1334 continue; 1335 } 1336 1337 if (!(desc->formats & (1 << params->codec.format))) 1338 continue; 1339 1340 for (j = 0; j < desc->num_sample_rates; ++j) 1341 if (desc->sample_rates[j] == params->codec.sample_rate) 1342 return 0; 1343 } 1344 1345 compr_err(compr, "Invalid params id=%u ch=%u,%u rate=%u fmt=%u\n", 1346 params->codec.id, params->codec.ch_in, params->codec.ch_out, 1347 params->codec.sample_rate, params->codec.format); 1348 return -EINVAL; 1349 } 1350 1351 static inline unsigned int wm_adsp_compr_frag_words(struct wm_adsp_compr *compr) 1352 { 1353 return compr->size.fragment_size / CS_DSP_DATA_WORD_SIZE; 1354 } 1355 1356 int wm_adsp_compr_set_params(struct snd_soc_component *component, 1357 struct snd_compr_stream *stream, 1358 struct snd_compr_params *params) 1359 { 1360 struct wm_adsp_compr *compr = stream->runtime->private_data; 1361 unsigned int size; 1362 int ret; 1363 1364 ret = wm_adsp_compr_check_params(stream, params); 1365 if (ret) 1366 return ret; 1367 1368 compr->size = params->buffer; 1369 1370 compr_dbg(compr, "fragment_size=%d fragments=%d\n", 1371 compr->size.fragment_size, compr->size.fragments); 1372 1373 size = wm_adsp_compr_frag_words(compr) * sizeof(*compr->raw_buf); 1374 compr->raw_buf = kmalloc(size, GFP_DMA | GFP_KERNEL); 1375 if (!compr->raw_buf) 1376 return -ENOMEM; 1377 1378 compr->sample_rate = params->codec.sample_rate; 1379 1380 return 0; 1381 } 1382 EXPORT_SYMBOL_GPL(wm_adsp_compr_set_params); 1383 1384 int wm_adsp_compr_get_caps(struct snd_soc_component *component, 1385 struct snd_compr_stream *stream, 1386 struct snd_compr_caps *caps) 1387 { 1388 struct wm_adsp_compr *compr = stream->runtime->private_data; 1389 int fw = compr->dsp->fw; 1390 int i; 1391 1392 if (wm_adsp_fw[fw].caps) { 1393 for (i = 0; i < wm_adsp_fw[fw].num_caps; i++) 1394 caps->codecs[i] = wm_adsp_fw[fw].caps[i].id; 1395 1396 caps->num_codecs = i; 1397 caps->direction = wm_adsp_fw[fw].compr_direction; 1398 1399 caps->min_fragment_size = WM_ADSP_MIN_FRAGMENT_SIZE; 1400 caps->max_fragment_size = WM_ADSP_MAX_FRAGMENT_SIZE; 1401 caps->min_fragments = WM_ADSP_MIN_FRAGMENTS; 1402 caps->max_fragments = WM_ADSP_MAX_FRAGMENTS; 1403 } 1404 1405 return 0; 1406 } 1407 EXPORT_SYMBOL_GPL(wm_adsp_compr_get_caps); 1408 1409 static inline int wm_adsp_buffer_read(struct wm_adsp_compr_buf *buf, 1410 unsigned int field_offset, u32 *data) 1411 { 1412 return cs_dsp_read_data_word(&buf->dsp->cs_dsp, buf->host_buf_mem_type, 1413 buf->host_buf_ptr + field_offset, data); 1414 } 1415 1416 static inline int wm_adsp_buffer_write(struct wm_adsp_compr_buf *buf, 1417 unsigned int field_offset, u32 data) 1418 { 1419 return cs_dsp_write_data_word(&buf->dsp->cs_dsp, buf->host_buf_mem_type, 1420 buf->host_buf_ptr + field_offset, 1421 data); 1422 } 1423 1424 static int wm_adsp_buffer_populate(struct wm_adsp_compr_buf *buf) 1425 { 1426 const struct wm_adsp_fw_caps *caps = wm_adsp_fw[buf->dsp->fw].caps; 1427 struct wm_adsp_buffer_region *region; 1428 u32 offset = 0; 1429 int i, ret; 1430 1431 buf->regions = kcalloc(caps->num_regions, sizeof(*buf->regions), 1432 GFP_KERNEL); 1433 if (!buf->regions) 1434 return -ENOMEM; 1435 1436 for (i = 0; i < caps->num_regions; ++i) { 1437 region = &buf->regions[i]; 1438 1439 region->offset = offset; 1440 region->mem_type = caps->region_defs[i].mem_type; 1441 1442 ret = wm_adsp_buffer_read(buf, caps->region_defs[i].base_offset, 1443 ®ion->base_addr); 1444 if (ret < 0) 1445 return ret; 1446 1447 ret = wm_adsp_buffer_read(buf, caps->region_defs[i].size_offset, 1448 &offset); 1449 if (ret < 0) 1450 return ret; 1451 1452 region->cumulative_size = offset; 1453 1454 compr_dbg(buf, 1455 "region=%d type=%d base=%08x off=%08x size=%08x\n", 1456 i, region->mem_type, region->base_addr, 1457 region->offset, region->cumulative_size); 1458 } 1459 1460 return 0; 1461 } 1462 1463 static void wm_adsp_buffer_clear(struct wm_adsp_compr_buf *buf) 1464 { 1465 buf->irq_count = 0xFFFFFFFF; 1466 buf->read_index = -1; 1467 buf->avail = 0; 1468 } 1469 1470 static struct wm_adsp_compr_buf *wm_adsp_buffer_alloc(struct wm_adsp *dsp) 1471 { 1472 struct wm_adsp_compr_buf *buf; 1473 1474 buf = kzalloc(sizeof(*buf), GFP_KERNEL); 1475 if (!buf) 1476 return NULL; 1477 1478 buf->dsp = dsp; 1479 1480 wm_adsp_buffer_clear(buf); 1481 1482 return buf; 1483 } 1484 1485 static int wm_adsp_buffer_parse_legacy(struct wm_adsp *dsp) 1486 { 1487 struct cs_dsp_alg_region *alg_region; 1488 struct wm_adsp_compr_buf *buf; 1489 u32 xmalg, addr, magic; 1490 int i, ret; 1491 1492 alg_region = cs_dsp_find_alg_region(&dsp->cs_dsp, WMFW_ADSP2_XM, dsp->cs_dsp.fw_id); 1493 if (!alg_region) { 1494 adsp_err(dsp, "No algorithm region found\n"); 1495 return -EINVAL; 1496 } 1497 1498 xmalg = dsp->sys_config_size / sizeof(__be32); 1499 1500 addr = alg_region->base + xmalg + ALG_XM_FIELD(magic); 1501 ret = cs_dsp_read_data_word(&dsp->cs_dsp, WMFW_ADSP2_XM, addr, &magic); 1502 if (ret < 0) 1503 return ret; 1504 1505 if (magic != WM_ADSP_ALG_XM_STRUCT_MAGIC) 1506 return -ENODEV; 1507 1508 buf = wm_adsp_buffer_alloc(dsp); 1509 if (!buf) 1510 return -ENOMEM; 1511 1512 addr = alg_region->base + xmalg + ALG_XM_FIELD(host_buf_ptr); 1513 for (i = 0; i < 5; ++i) { 1514 ret = cs_dsp_read_data_word(&dsp->cs_dsp, WMFW_ADSP2_XM, addr, 1515 &buf->host_buf_ptr); 1516 if (ret < 0) 1517 goto err; 1518 1519 if (buf->host_buf_ptr) 1520 break; 1521 1522 usleep_range(1000, 2000); 1523 } 1524 1525 if (!buf->host_buf_ptr) { 1526 ret = -EIO; 1527 goto err; 1528 } 1529 1530 buf->host_buf_mem_type = WMFW_ADSP2_XM; 1531 1532 ret = wm_adsp_buffer_populate(buf); 1533 if (ret < 0) 1534 goto err; 1535 1536 list_add_tail(&buf->list, &dsp->buffer_list); 1537 1538 compr_dbg(buf, "legacy host_buf_ptr=%x\n", buf->host_buf_ptr); 1539 1540 return 0; 1541 1542 err: 1543 kfree(buf); 1544 1545 return ret; 1546 } 1547 1548 static int wm_adsp_buffer_parse_coeff(struct cs_dsp_coeff_ctl *cs_ctl) 1549 { 1550 struct wm_adsp_host_buf_coeff_v1 coeff_v1; 1551 struct wm_adsp_compr_buf *buf; 1552 struct wm_adsp *dsp = container_of(cs_ctl->dsp, struct wm_adsp, cs_dsp); 1553 unsigned int version = 0; 1554 int ret, i; 1555 1556 for (i = 0; i < 5; ++i) { 1557 ret = cs_dsp_coeff_read_ctrl(cs_ctl, 0, &coeff_v1, 1558 min(cs_ctl->len, sizeof(coeff_v1))); 1559 if (ret < 0) 1560 return ret; 1561 1562 if (coeff_v1.host_buf_ptr) 1563 break; 1564 1565 usleep_range(1000, 2000); 1566 } 1567 1568 if (!coeff_v1.host_buf_ptr) { 1569 adsp_err(dsp, "Failed to acquire host buffer\n"); 1570 return -EIO; 1571 } 1572 1573 buf = wm_adsp_buffer_alloc(dsp); 1574 if (!buf) 1575 return -ENOMEM; 1576 1577 buf->host_buf_mem_type = cs_ctl->alg_region.type; 1578 buf->host_buf_ptr = be32_to_cpu(coeff_v1.host_buf_ptr); 1579 1580 ret = wm_adsp_buffer_populate(buf); 1581 if (ret < 0) 1582 goto err; 1583 1584 /* 1585 * v0 host_buffer coefficients didn't have versioning, so if the 1586 * control is one word, assume version 0. 1587 */ 1588 if (cs_ctl->len == 4) 1589 goto done; 1590 1591 version = be32_to_cpu(coeff_v1.versions) & HOST_BUF_COEFF_COMPAT_VER_MASK; 1592 version >>= HOST_BUF_COEFF_COMPAT_VER_SHIFT; 1593 1594 if (version > HOST_BUF_COEFF_SUPPORTED_COMPAT_VER) { 1595 adsp_err(dsp, 1596 "Host buffer coeff ver %u > supported version %u\n", 1597 version, HOST_BUF_COEFF_SUPPORTED_COMPAT_VER); 1598 ret = -EINVAL; 1599 goto err; 1600 } 1601 1602 cs_dsp_remove_padding((u32 *)&coeff_v1.name, ARRAY_SIZE(coeff_v1.name)); 1603 1604 buf->name = kasprintf(GFP_KERNEL, "%s-dsp-%s", dsp->part, 1605 (char *)&coeff_v1.name); 1606 1607 done: 1608 list_add_tail(&buf->list, &dsp->buffer_list); 1609 1610 compr_dbg(buf, "host_buf_ptr=%x coeff version %u\n", 1611 buf->host_buf_ptr, version); 1612 1613 return version; 1614 1615 err: 1616 kfree(buf); 1617 1618 return ret; 1619 } 1620 1621 static int wm_adsp_buffer_init(struct wm_adsp *dsp) 1622 { 1623 struct cs_dsp_coeff_ctl *cs_ctl; 1624 int ret; 1625 1626 list_for_each_entry(cs_ctl, &dsp->cs_dsp.ctl_list, list) { 1627 if (cs_ctl->type != WMFW_CTL_TYPE_HOST_BUFFER) 1628 continue; 1629 1630 if (!cs_ctl->enabled) 1631 continue; 1632 1633 ret = wm_adsp_buffer_parse_coeff(cs_ctl); 1634 if (ret < 0) { 1635 adsp_err(dsp, "Failed to parse coeff: %d\n", ret); 1636 goto error; 1637 } else if (ret == 0) { 1638 /* Only one buffer supported for version 0 */ 1639 return 0; 1640 } 1641 } 1642 1643 if (list_empty(&dsp->buffer_list)) { 1644 /* Fall back to legacy support */ 1645 ret = wm_adsp_buffer_parse_legacy(dsp); 1646 if (ret == -ENODEV) 1647 adsp_info(dsp, "Legacy support not available\n"); 1648 else if (ret) 1649 adsp_warn(dsp, "Failed to parse legacy: %d\n", ret); 1650 } 1651 1652 return 0; 1653 1654 error: 1655 wm_adsp_buffer_free(dsp); 1656 return ret; 1657 } 1658 1659 static int wm_adsp_buffer_free(struct wm_adsp *dsp) 1660 { 1661 struct wm_adsp_compr_buf *buf, *tmp; 1662 1663 list_for_each_entry_safe(buf, tmp, &dsp->buffer_list, list) { 1664 wm_adsp_compr_detach(buf->compr); 1665 1666 kfree(buf->name); 1667 kfree(buf->regions); 1668 list_del(&buf->list); 1669 kfree(buf); 1670 } 1671 1672 return 0; 1673 } 1674 1675 static int wm_adsp_buffer_get_error(struct wm_adsp_compr_buf *buf) 1676 { 1677 int ret; 1678 1679 ret = wm_adsp_buffer_read(buf, HOST_BUFFER_FIELD(error), &buf->error); 1680 if (ret < 0) { 1681 compr_err(buf, "Failed to check buffer error: %d\n", ret); 1682 return ret; 1683 } 1684 if (buf->error != 0) { 1685 compr_err(buf, "Buffer error occurred: %d\n", buf->error); 1686 return -EIO; 1687 } 1688 1689 return 0; 1690 } 1691 1692 int wm_adsp_compr_trigger(struct snd_soc_component *component, 1693 struct snd_compr_stream *stream, int cmd) 1694 { 1695 struct wm_adsp_compr *compr = stream->runtime->private_data; 1696 struct wm_adsp *dsp = compr->dsp; 1697 int ret = 0; 1698 1699 compr_dbg(compr, "Trigger: %d\n", cmd); 1700 1701 mutex_lock(&dsp->cs_dsp.pwr_lock); 1702 1703 switch (cmd) { 1704 case SNDRV_PCM_TRIGGER_START: 1705 if (!wm_adsp_compr_attached(compr)) { 1706 ret = wm_adsp_compr_attach(compr); 1707 if (ret < 0) { 1708 compr_err(compr, "Failed to link buffer and stream: %d\n", 1709 ret); 1710 break; 1711 } 1712 } 1713 1714 ret = wm_adsp_buffer_get_error(compr->buf); 1715 if (ret < 0) 1716 break; 1717 1718 /* Trigger the IRQ at one fragment of data */ 1719 ret = wm_adsp_buffer_write(compr->buf, 1720 HOST_BUFFER_FIELD(high_water_mark), 1721 wm_adsp_compr_frag_words(compr)); 1722 if (ret < 0) { 1723 compr_err(compr, "Failed to set high water mark: %d\n", 1724 ret); 1725 break; 1726 } 1727 break; 1728 case SNDRV_PCM_TRIGGER_STOP: 1729 if (wm_adsp_compr_attached(compr)) 1730 wm_adsp_buffer_clear(compr->buf); 1731 break; 1732 default: 1733 ret = -EINVAL; 1734 break; 1735 } 1736 1737 mutex_unlock(&dsp->cs_dsp.pwr_lock); 1738 1739 return ret; 1740 } 1741 EXPORT_SYMBOL_GPL(wm_adsp_compr_trigger); 1742 1743 static inline int wm_adsp_buffer_size(struct wm_adsp_compr_buf *buf) 1744 { 1745 int last_region = wm_adsp_fw[buf->dsp->fw].caps->num_regions - 1; 1746 1747 return buf->regions[last_region].cumulative_size; 1748 } 1749 1750 static int wm_adsp_buffer_update_avail(struct wm_adsp_compr_buf *buf) 1751 { 1752 u32 next_read_index, next_write_index; 1753 int write_index, read_index, avail; 1754 int ret; 1755 1756 /* Only sync read index if we haven't already read a valid index */ 1757 if (buf->read_index < 0) { 1758 ret = wm_adsp_buffer_read(buf, 1759 HOST_BUFFER_FIELD(next_read_index), 1760 &next_read_index); 1761 if (ret < 0) 1762 return ret; 1763 1764 read_index = sign_extend32(next_read_index, 23); 1765 1766 if (read_index < 0) { 1767 compr_dbg(buf, "Avail check on unstarted stream\n"); 1768 return 0; 1769 } 1770 1771 buf->read_index = read_index; 1772 } 1773 1774 ret = wm_adsp_buffer_read(buf, HOST_BUFFER_FIELD(next_write_index), 1775 &next_write_index); 1776 if (ret < 0) 1777 return ret; 1778 1779 write_index = sign_extend32(next_write_index, 23); 1780 1781 avail = write_index - buf->read_index; 1782 if (avail < 0) 1783 avail += wm_adsp_buffer_size(buf); 1784 1785 compr_dbg(buf, "readindex=0x%x, writeindex=0x%x, avail=%d\n", 1786 buf->read_index, write_index, avail * CS_DSP_DATA_WORD_SIZE); 1787 1788 buf->avail = avail; 1789 1790 return 0; 1791 } 1792 1793 int wm_adsp_compr_handle_irq(struct wm_adsp *dsp) 1794 { 1795 struct wm_adsp_compr_buf *buf; 1796 struct wm_adsp_compr *compr; 1797 int ret = 0; 1798 1799 mutex_lock(&dsp->cs_dsp.pwr_lock); 1800 1801 if (list_empty(&dsp->buffer_list)) { 1802 ret = -ENODEV; 1803 goto out; 1804 } 1805 1806 adsp_dbg(dsp, "Handling buffer IRQ\n"); 1807 1808 list_for_each_entry(buf, &dsp->buffer_list, list) { 1809 compr = buf->compr; 1810 1811 ret = wm_adsp_buffer_get_error(buf); 1812 if (ret < 0) 1813 goto out_notify; /* Wake poll to report error */ 1814 1815 ret = wm_adsp_buffer_read(buf, HOST_BUFFER_FIELD(irq_count), 1816 &buf->irq_count); 1817 if (ret < 0) { 1818 compr_err(buf, "Failed to get irq_count: %d\n", ret); 1819 goto out; 1820 } 1821 1822 ret = wm_adsp_buffer_update_avail(buf); 1823 if (ret < 0) { 1824 compr_err(buf, "Error reading avail: %d\n", ret); 1825 goto out; 1826 } 1827 1828 if (wm_adsp_fw[dsp->fw].voice_trigger && buf->irq_count == 2) 1829 ret = WM_ADSP_COMPR_VOICE_TRIGGER; 1830 1831 out_notify: 1832 if (compr && compr->stream) 1833 snd_compr_fragment_elapsed(compr->stream); 1834 } 1835 1836 out: 1837 mutex_unlock(&dsp->cs_dsp.pwr_lock); 1838 1839 return ret; 1840 } 1841 EXPORT_SYMBOL_GPL(wm_adsp_compr_handle_irq); 1842 1843 static int wm_adsp_buffer_reenable_irq(struct wm_adsp_compr_buf *buf) 1844 { 1845 if (buf->irq_count & 0x01) 1846 return 0; 1847 1848 compr_dbg(buf, "Enable IRQ(0x%x) for next fragment\n", buf->irq_count); 1849 1850 buf->irq_count |= 0x01; 1851 1852 return wm_adsp_buffer_write(buf, HOST_BUFFER_FIELD(irq_ack), 1853 buf->irq_count); 1854 } 1855 1856 int wm_adsp_compr_pointer(struct snd_soc_component *component, 1857 struct snd_compr_stream *stream, 1858 struct snd_compr_tstamp *tstamp) 1859 { 1860 struct wm_adsp_compr *compr = stream->runtime->private_data; 1861 struct wm_adsp *dsp = compr->dsp; 1862 struct wm_adsp_compr_buf *buf; 1863 int ret = 0; 1864 1865 compr_dbg(compr, "Pointer request\n"); 1866 1867 mutex_lock(&dsp->cs_dsp.pwr_lock); 1868 1869 buf = compr->buf; 1870 1871 if (dsp->fatal_error || !buf || buf->error) { 1872 snd_compr_stop_error(stream, SNDRV_PCM_STATE_XRUN); 1873 ret = -EIO; 1874 goto out; 1875 } 1876 1877 if (buf->avail < wm_adsp_compr_frag_words(compr)) { 1878 ret = wm_adsp_buffer_update_avail(buf); 1879 if (ret < 0) { 1880 compr_err(compr, "Error reading avail: %d\n", ret); 1881 goto out; 1882 } 1883 1884 /* 1885 * If we really have less than 1 fragment available tell the 1886 * DSP to inform us once a whole fragment is available. 1887 */ 1888 if (buf->avail < wm_adsp_compr_frag_words(compr)) { 1889 ret = wm_adsp_buffer_get_error(buf); 1890 if (ret < 0) { 1891 if (buf->error) 1892 snd_compr_stop_error(stream, 1893 SNDRV_PCM_STATE_XRUN); 1894 goto out; 1895 } 1896 1897 ret = wm_adsp_buffer_reenable_irq(buf); 1898 if (ret < 0) { 1899 compr_err(compr, "Failed to re-enable buffer IRQ: %d\n", 1900 ret); 1901 goto out; 1902 } 1903 } 1904 } 1905 1906 tstamp->copied_total = compr->copied_total; 1907 tstamp->copied_total += buf->avail * CS_DSP_DATA_WORD_SIZE; 1908 tstamp->sampling_rate = compr->sample_rate; 1909 1910 out: 1911 mutex_unlock(&dsp->cs_dsp.pwr_lock); 1912 1913 return ret; 1914 } 1915 EXPORT_SYMBOL_GPL(wm_adsp_compr_pointer); 1916 1917 static int wm_adsp_buffer_capture_block(struct wm_adsp_compr *compr, int target) 1918 { 1919 struct wm_adsp_compr_buf *buf = compr->buf; 1920 unsigned int adsp_addr; 1921 int mem_type, nwords, max_read; 1922 int i, ret; 1923 1924 /* Calculate read parameters */ 1925 for (i = 0; i < wm_adsp_fw[buf->dsp->fw].caps->num_regions; ++i) 1926 if (buf->read_index < buf->regions[i].cumulative_size) 1927 break; 1928 1929 if (i == wm_adsp_fw[buf->dsp->fw].caps->num_regions) 1930 return -EINVAL; 1931 1932 mem_type = buf->regions[i].mem_type; 1933 adsp_addr = buf->regions[i].base_addr + 1934 (buf->read_index - buf->regions[i].offset); 1935 1936 max_read = wm_adsp_compr_frag_words(compr); 1937 nwords = buf->regions[i].cumulative_size - buf->read_index; 1938 1939 if (nwords > target) 1940 nwords = target; 1941 if (nwords > buf->avail) 1942 nwords = buf->avail; 1943 if (nwords > max_read) 1944 nwords = max_read; 1945 if (!nwords) 1946 return 0; 1947 1948 /* Read data from DSP */ 1949 ret = cs_dsp_read_raw_data_block(&buf->dsp->cs_dsp, mem_type, adsp_addr, 1950 nwords, (__be32 *)compr->raw_buf); 1951 if (ret < 0) 1952 return ret; 1953 1954 cs_dsp_remove_padding(compr->raw_buf, nwords); 1955 1956 /* update read index to account for words read */ 1957 buf->read_index += nwords; 1958 if (buf->read_index == wm_adsp_buffer_size(buf)) 1959 buf->read_index = 0; 1960 1961 ret = wm_adsp_buffer_write(buf, HOST_BUFFER_FIELD(next_read_index), 1962 buf->read_index); 1963 if (ret < 0) 1964 return ret; 1965 1966 /* update avail to account for words read */ 1967 buf->avail -= nwords; 1968 1969 return nwords; 1970 } 1971 1972 static int wm_adsp_compr_read(struct wm_adsp_compr *compr, 1973 char __user *buf, size_t count) 1974 { 1975 struct wm_adsp *dsp = compr->dsp; 1976 int ntotal = 0; 1977 int nwords, nbytes; 1978 1979 compr_dbg(compr, "Requested read of %zu bytes\n", count); 1980 1981 if (dsp->fatal_error || !compr->buf || compr->buf->error) { 1982 snd_compr_stop_error(compr->stream, SNDRV_PCM_STATE_XRUN); 1983 return -EIO; 1984 } 1985 1986 count /= CS_DSP_DATA_WORD_SIZE; 1987 1988 do { 1989 nwords = wm_adsp_buffer_capture_block(compr, count); 1990 if (nwords < 0) { 1991 compr_err(compr, "Failed to capture block: %d\n", 1992 nwords); 1993 return nwords; 1994 } 1995 1996 nbytes = nwords * CS_DSP_DATA_WORD_SIZE; 1997 1998 compr_dbg(compr, "Read %d bytes\n", nbytes); 1999 2000 if (copy_to_user(buf + ntotal, compr->raw_buf, nbytes)) { 2001 compr_err(compr, "Failed to copy data to user: %d, %d\n", 2002 ntotal, nbytes); 2003 return -EFAULT; 2004 } 2005 2006 count -= nwords; 2007 ntotal += nbytes; 2008 } while (nwords > 0 && count > 0); 2009 2010 compr->copied_total += ntotal; 2011 2012 return ntotal; 2013 } 2014 2015 int wm_adsp_compr_copy(struct snd_soc_component *component, 2016 struct snd_compr_stream *stream, char __user *buf, 2017 size_t count) 2018 { 2019 struct wm_adsp_compr *compr = stream->runtime->private_data; 2020 struct wm_adsp *dsp = compr->dsp; 2021 int ret; 2022 2023 mutex_lock(&dsp->cs_dsp.pwr_lock); 2024 2025 if (stream->direction == SND_COMPRESS_CAPTURE) 2026 ret = wm_adsp_compr_read(compr, buf, count); 2027 else 2028 ret = -ENOTSUPP; 2029 2030 mutex_unlock(&dsp->cs_dsp.pwr_lock); 2031 2032 return ret; 2033 } 2034 EXPORT_SYMBOL_GPL(wm_adsp_compr_copy); 2035 2036 static void wm_adsp_fatal_error(struct cs_dsp *cs_dsp) 2037 { 2038 struct wm_adsp *dsp = container_of(cs_dsp, struct wm_adsp, cs_dsp); 2039 struct wm_adsp_compr *compr; 2040 2041 dsp->fatal_error = true; 2042 2043 list_for_each_entry(compr, &dsp->compr_list, list) { 2044 if (compr->stream) 2045 snd_compr_fragment_elapsed(compr->stream); 2046 } 2047 } 2048 2049 irqreturn_t wm_adsp2_bus_error(int irq, void *data) 2050 { 2051 struct wm_adsp *dsp = (struct wm_adsp *)data; 2052 2053 cs_dsp_adsp2_bus_error(&dsp->cs_dsp); 2054 2055 return IRQ_HANDLED; 2056 } 2057 EXPORT_SYMBOL_GPL(wm_adsp2_bus_error); 2058 2059 irqreturn_t wm_halo_bus_error(int irq, void *data) 2060 { 2061 struct wm_adsp *dsp = (struct wm_adsp *)data; 2062 2063 cs_dsp_halo_bus_error(&dsp->cs_dsp); 2064 2065 return IRQ_HANDLED; 2066 } 2067 EXPORT_SYMBOL_GPL(wm_halo_bus_error); 2068 2069 irqreturn_t wm_halo_wdt_expire(int irq, void *data) 2070 { 2071 struct wm_adsp *dsp = data; 2072 2073 cs_dsp_halo_wdt_expire(&dsp->cs_dsp); 2074 2075 return IRQ_HANDLED; 2076 } 2077 EXPORT_SYMBOL_GPL(wm_halo_wdt_expire); 2078 2079 static const struct cs_dsp_client_ops wm_adsp1_client_ops = { 2080 .control_add = wm_adsp_control_add, 2081 .control_remove = wm_adsp_control_remove, 2082 }; 2083 2084 static const struct cs_dsp_client_ops wm_adsp2_client_ops = { 2085 .control_add = wm_adsp_control_add, 2086 .control_remove = wm_adsp_control_remove, 2087 .pre_run = wm_adsp_pre_run, 2088 .post_run = wm_adsp_event_post_run, 2089 .post_stop = wm_adsp_event_post_stop, 2090 .watchdog_expired = wm_adsp_fatal_error, 2091 }; 2092 2093 MODULE_LICENSE("GPL v2"); 2094 MODULE_IMPORT_NS(FW_CS_DSP); 2095