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 mutex_lock(&dsp->cs_dsp.pwr_lock); 691 ret = cs_dsp_coeff_write_ctrl(cs_ctl, 0, buf, len); 692 mutex_unlock(&dsp->cs_dsp.pwr_lock); 693 694 if (ret < 0) 695 return ret; 696 697 if (ret == 0 || (cs_ctl->flags & WMFW_CTL_FLAG_SYS)) 698 return 0; 699 700 ctl = cs_ctl->priv; 701 702 return snd_soc_component_notify_control(dsp->component, ctl->name); 703 } 704 EXPORT_SYMBOL_GPL(wm_adsp_write_ctl); 705 706 int wm_adsp_read_ctl(struct wm_adsp *dsp, const char *name, int type, 707 unsigned int alg, void *buf, size_t len) 708 { 709 int ret; 710 711 mutex_lock(&dsp->cs_dsp.pwr_lock); 712 ret = cs_dsp_coeff_read_ctrl(cs_dsp_get_ctl(&dsp->cs_dsp, name, type, alg), 713 0, buf, len); 714 mutex_unlock(&dsp->cs_dsp.pwr_lock); 715 716 return ret; 717 } 718 EXPORT_SYMBOL_GPL(wm_adsp_read_ctl); 719 720 static void wm_adsp_release_firmware_files(struct wm_adsp *dsp, 721 const struct firmware *wmfw_firmware, 722 char *wmfw_filename, 723 const struct firmware *coeff_firmware, 724 char *coeff_filename) 725 { 726 if (wmfw_firmware) 727 release_firmware(wmfw_firmware); 728 kfree(wmfw_filename); 729 730 if (coeff_firmware) 731 release_firmware(coeff_firmware); 732 kfree(coeff_filename); 733 } 734 735 static int wm_adsp_request_firmware_file(struct wm_adsp *dsp, 736 const struct firmware **firmware, char **filename, 737 const char *dir, const char *system_name, 738 const char *asoc_component_prefix, 739 const char *filetype) 740 { 741 struct cs_dsp *cs_dsp = &dsp->cs_dsp; 742 const char *fwf; 743 char *s, c; 744 int ret = 0; 745 746 if (dsp->fwf_name) 747 fwf = dsp->fwf_name; 748 else 749 fwf = dsp->cs_dsp.name; 750 751 if (system_name && asoc_component_prefix) 752 *filename = kasprintf(GFP_KERNEL, "%s%s-%s-%s-%s-%s.%s", dir, dsp->part, 753 fwf, wm_adsp_fw[dsp->fw].file, system_name, 754 asoc_component_prefix, filetype); 755 else if (system_name) 756 *filename = kasprintf(GFP_KERNEL, "%s%s-%s-%s-%s.%s", dir, dsp->part, 757 fwf, wm_adsp_fw[dsp->fw].file, system_name, 758 filetype); 759 else 760 *filename = kasprintf(GFP_KERNEL, "%s%s-%s-%s.%s", dir, dsp->part, fwf, 761 wm_adsp_fw[dsp->fw].file, filetype); 762 763 if (*filename == NULL) 764 return -ENOMEM; 765 766 /* 767 * Make sure that filename is lower-case and any non alpha-numeric 768 * characters except full stop and forward slash are replaced with 769 * hyphens. 770 */ 771 s = *filename; 772 while (*s) { 773 c = *s; 774 if (isalnum(c)) 775 *s = tolower(c); 776 else if ((c != '.') && (c != '/')) 777 *s = '-'; 778 s++; 779 } 780 781 ret = firmware_request_nowarn(firmware, *filename, cs_dsp->dev); 782 if (ret != 0) { 783 adsp_dbg(dsp, "Failed to request '%s'\n", *filename); 784 kfree(*filename); 785 *filename = NULL; 786 } else { 787 adsp_dbg(dsp, "Found '%s'\n", *filename); 788 } 789 790 return ret; 791 } 792 793 static const char *cirrus_dir = "cirrus/"; 794 static int wm_adsp_request_firmware_files(struct wm_adsp *dsp, 795 const struct firmware **wmfw_firmware, 796 char **wmfw_filename, 797 const struct firmware **coeff_firmware, 798 char **coeff_filename) 799 { 800 const char *system_name = dsp->system_name; 801 const char *asoc_component_prefix = dsp->component->name_prefix; 802 int ret = 0; 803 804 if (system_name && asoc_component_prefix) { 805 if (!wm_adsp_request_firmware_file(dsp, wmfw_firmware, wmfw_filename, 806 cirrus_dir, system_name, 807 asoc_component_prefix, "wmfw")) { 808 wm_adsp_request_firmware_file(dsp, coeff_firmware, coeff_filename, 809 cirrus_dir, system_name, 810 asoc_component_prefix, "bin"); 811 return 0; 812 } 813 } 814 815 if (system_name) { 816 if (!wm_adsp_request_firmware_file(dsp, wmfw_firmware, wmfw_filename, 817 cirrus_dir, system_name, 818 NULL, "wmfw")) { 819 if (asoc_component_prefix) 820 wm_adsp_request_firmware_file(dsp, coeff_firmware, coeff_filename, 821 cirrus_dir, system_name, 822 asoc_component_prefix, "bin"); 823 824 if (!*coeff_firmware) 825 wm_adsp_request_firmware_file(dsp, coeff_firmware, coeff_filename, 826 cirrus_dir, system_name, 827 NULL, "bin"); 828 return 0; 829 } 830 } 831 832 /* Check system-specific bin without wmfw before falling back to generic */ 833 if (dsp->wmfw_optional && 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 if (*coeff_firmware) 845 return 0; 846 } 847 848 /* Check legacy location */ 849 if (!wm_adsp_request_firmware_file(dsp, wmfw_firmware, wmfw_filename, 850 "", NULL, NULL, "wmfw")) { 851 wm_adsp_request_firmware_file(dsp, coeff_firmware, coeff_filename, 852 "", NULL, NULL, "bin"); 853 return 0; 854 } 855 856 /* Fall back to generic wmfw and optional matching bin */ 857 ret = wm_adsp_request_firmware_file(dsp, wmfw_firmware, wmfw_filename, 858 cirrus_dir, NULL, NULL, "wmfw"); 859 if (!ret || dsp->wmfw_optional) { 860 wm_adsp_request_firmware_file(dsp, coeff_firmware, coeff_filename, 861 cirrus_dir, NULL, NULL, "bin"); 862 return 0; 863 } 864 865 adsp_err(dsp, "Failed to request firmware <%s>%s-%s-%s<-%s<%s>>.wmfw\n", 866 cirrus_dir, dsp->part, 867 dsp->fwf_name ? dsp->fwf_name : dsp->cs_dsp.name, 868 wm_adsp_fw[dsp->fw].file, system_name, asoc_component_prefix); 869 870 return -ENOENT; 871 } 872 873 static int wm_adsp_common_init(struct wm_adsp *dsp) 874 { 875 INIT_LIST_HEAD(&dsp->compr_list); 876 INIT_LIST_HEAD(&dsp->buffer_list); 877 878 return 0; 879 } 880 881 int wm_adsp1_init(struct wm_adsp *dsp) 882 { 883 int ret; 884 885 dsp->cs_dsp.client_ops = &wm_adsp1_client_ops; 886 887 ret = cs_dsp_adsp1_init(&dsp->cs_dsp); 888 if (ret) 889 return ret; 890 891 return wm_adsp_common_init(dsp); 892 } 893 EXPORT_SYMBOL_GPL(wm_adsp1_init); 894 895 int wm_adsp1_event(struct snd_soc_dapm_widget *w, 896 struct snd_kcontrol *kcontrol, 897 int event) 898 { 899 struct snd_soc_component *component = snd_soc_dapm_to_component(w->dapm); 900 struct wm_adsp *dsps = snd_soc_component_get_drvdata(component); 901 struct wm_adsp *dsp = &dsps[w->shift]; 902 int ret = 0; 903 char *wmfw_filename = NULL; 904 const struct firmware *wmfw_firmware = NULL; 905 char *coeff_filename = NULL; 906 const struct firmware *coeff_firmware = NULL; 907 908 dsp->component = component; 909 910 switch (event) { 911 case SND_SOC_DAPM_POST_PMU: 912 ret = wm_adsp_request_firmware_files(dsp, 913 &wmfw_firmware, &wmfw_filename, 914 &coeff_firmware, &coeff_filename); 915 if (ret) 916 break; 917 918 ret = cs_dsp_adsp1_power_up(&dsp->cs_dsp, 919 wmfw_firmware, wmfw_filename, 920 coeff_firmware, coeff_filename, 921 wm_adsp_fw_text[dsp->fw]); 922 923 wm_adsp_release_firmware_files(dsp, 924 wmfw_firmware, wmfw_filename, 925 coeff_firmware, coeff_filename); 926 break; 927 case SND_SOC_DAPM_PRE_PMD: 928 cs_dsp_adsp1_power_down(&dsp->cs_dsp); 929 break; 930 default: 931 break; 932 } 933 934 return ret; 935 } 936 EXPORT_SYMBOL_GPL(wm_adsp1_event); 937 938 int wm_adsp2_set_dspclk(struct snd_soc_dapm_widget *w, unsigned int freq) 939 { 940 struct snd_soc_component *component = snd_soc_dapm_to_component(w->dapm); 941 struct wm_adsp *dsps = snd_soc_component_get_drvdata(component); 942 struct wm_adsp *dsp = &dsps[w->shift]; 943 944 return cs_dsp_set_dspclk(&dsp->cs_dsp, freq); 945 } 946 EXPORT_SYMBOL_GPL(wm_adsp2_set_dspclk); 947 948 int wm_adsp2_preloader_get(struct snd_kcontrol *kcontrol, 949 struct snd_ctl_elem_value *ucontrol) 950 { 951 struct snd_soc_component *component = snd_soc_kcontrol_component(kcontrol); 952 struct wm_adsp *dsps = snd_soc_component_get_drvdata(component); 953 struct soc_mixer_control *mc = 954 (struct soc_mixer_control *)kcontrol->private_value; 955 struct wm_adsp *dsp = &dsps[mc->shift - 1]; 956 957 ucontrol->value.integer.value[0] = dsp->preloaded; 958 959 return 0; 960 } 961 EXPORT_SYMBOL_GPL(wm_adsp2_preloader_get); 962 963 int wm_adsp2_preloader_put(struct snd_kcontrol *kcontrol, 964 struct snd_ctl_elem_value *ucontrol) 965 { 966 struct snd_soc_component *component = snd_soc_kcontrol_component(kcontrol); 967 struct wm_adsp *dsps = snd_soc_component_get_drvdata(component); 968 struct snd_soc_dapm_context *dapm = snd_soc_component_get_dapm(component); 969 struct soc_mixer_control *mc = 970 (struct soc_mixer_control *)kcontrol->private_value; 971 struct wm_adsp *dsp = &dsps[mc->shift - 1]; 972 char preload[32]; 973 974 if (dsp->preloaded == ucontrol->value.integer.value[0]) 975 return 0; 976 977 snprintf(preload, ARRAY_SIZE(preload), "%s Preload", dsp->cs_dsp.name); 978 979 if (ucontrol->value.integer.value[0] || dsp->toggle_preload) 980 snd_soc_component_force_enable_pin(component, preload); 981 else 982 snd_soc_component_disable_pin(component, preload); 983 984 snd_soc_dapm_sync(dapm); 985 986 flush_work(&dsp->boot_work); 987 988 dsp->preloaded = ucontrol->value.integer.value[0]; 989 990 if (dsp->toggle_preload) { 991 snd_soc_component_disable_pin(component, preload); 992 snd_soc_dapm_sync(dapm); 993 } 994 995 return 1; 996 } 997 EXPORT_SYMBOL_GPL(wm_adsp2_preloader_put); 998 999 int wm_adsp_power_up(struct wm_adsp *dsp, bool load_firmware) 1000 { 1001 int ret = 0; 1002 char *wmfw_filename = NULL; 1003 const struct firmware *wmfw_firmware = NULL; 1004 char *coeff_filename = NULL; 1005 const struct firmware *coeff_firmware = NULL; 1006 1007 if (load_firmware) { 1008 ret = wm_adsp_request_firmware_files(dsp, 1009 &wmfw_firmware, &wmfw_filename, 1010 &coeff_firmware, &coeff_filename); 1011 if (ret) 1012 return ret; 1013 } 1014 1015 ret = cs_dsp_power_up(&dsp->cs_dsp, 1016 wmfw_firmware, wmfw_filename, 1017 coeff_firmware, coeff_filename, 1018 wm_adsp_fw_text[dsp->fw]); 1019 1020 wm_adsp_release_firmware_files(dsp, 1021 wmfw_firmware, wmfw_filename, 1022 coeff_firmware, coeff_filename); 1023 1024 return ret; 1025 } 1026 EXPORT_SYMBOL_GPL(wm_adsp_power_up); 1027 1028 void wm_adsp_power_down(struct wm_adsp *dsp) 1029 { 1030 cs_dsp_power_down(&dsp->cs_dsp); 1031 } 1032 EXPORT_SYMBOL_GPL(wm_adsp_power_down); 1033 1034 static void wm_adsp_boot_work(struct work_struct *work) 1035 { 1036 struct wm_adsp *dsp = container_of(work, 1037 struct wm_adsp, 1038 boot_work); 1039 1040 wm_adsp_power_up(dsp, true); 1041 } 1042 1043 int wm_adsp_early_event(struct snd_soc_dapm_widget *w, 1044 struct snd_kcontrol *kcontrol, int event) 1045 { 1046 struct snd_soc_component *component = snd_soc_dapm_to_component(w->dapm); 1047 struct wm_adsp *dsps = snd_soc_component_get_drvdata(component); 1048 struct wm_adsp *dsp = &dsps[w->shift]; 1049 1050 switch (event) { 1051 case SND_SOC_DAPM_PRE_PMU: 1052 queue_work(system_unbound_wq, &dsp->boot_work); 1053 break; 1054 case SND_SOC_DAPM_PRE_PMD: 1055 wm_adsp_power_down(dsp); 1056 break; 1057 default: 1058 break; 1059 } 1060 1061 return 0; 1062 } 1063 EXPORT_SYMBOL_GPL(wm_adsp_early_event); 1064 1065 static int wm_adsp_pre_run(struct cs_dsp *cs_dsp) 1066 { 1067 struct wm_adsp *dsp = container_of(cs_dsp, struct wm_adsp, cs_dsp); 1068 1069 if (!dsp->pre_run) 1070 return 0; 1071 1072 return (*dsp->pre_run)(dsp); 1073 } 1074 1075 static int wm_adsp_event_post_run(struct cs_dsp *cs_dsp) 1076 { 1077 struct wm_adsp *dsp = container_of(cs_dsp, struct wm_adsp, cs_dsp); 1078 1079 if (wm_adsp_fw[dsp->fw].num_caps != 0) 1080 return wm_adsp_buffer_init(dsp); 1081 1082 return 0; 1083 } 1084 1085 static void wm_adsp_event_post_stop(struct cs_dsp *cs_dsp) 1086 { 1087 struct wm_adsp *dsp = container_of(cs_dsp, struct wm_adsp, cs_dsp); 1088 1089 if (wm_adsp_fw[dsp->fw].num_caps != 0) 1090 wm_adsp_buffer_free(dsp); 1091 1092 dsp->fatal_error = false; 1093 } 1094 1095 int wm_adsp_event(struct snd_soc_dapm_widget *w, 1096 struct snd_kcontrol *kcontrol, int event) 1097 { 1098 struct snd_soc_component *component = snd_soc_dapm_to_component(w->dapm); 1099 struct wm_adsp *dsps = snd_soc_component_get_drvdata(component); 1100 struct wm_adsp *dsp = &dsps[w->shift]; 1101 int ret = 0; 1102 1103 switch (event) { 1104 case SND_SOC_DAPM_POST_PMU: 1105 flush_work(&dsp->boot_work); 1106 ret = cs_dsp_run(&dsp->cs_dsp); 1107 break; 1108 case SND_SOC_DAPM_PRE_PMD: 1109 cs_dsp_stop(&dsp->cs_dsp); 1110 break; 1111 default: 1112 break; 1113 } 1114 1115 return ret; 1116 } 1117 EXPORT_SYMBOL_GPL(wm_adsp_event); 1118 1119 int wm_adsp2_component_probe(struct wm_adsp *dsp, struct snd_soc_component *component) 1120 { 1121 char preload[32]; 1122 1123 if (!dsp->cs_dsp.no_core_startstop) { 1124 snprintf(preload, ARRAY_SIZE(preload), "%s Preload", dsp->cs_dsp.name); 1125 snd_soc_component_disable_pin(component, preload); 1126 } 1127 1128 cs_dsp_init_debugfs(&dsp->cs_dsp, component->debugfs_root); 1129 1130 dsp->component = component; 1131 1132 return 0; 1133 } 1134 EXPORT_SYMBOL_GPL(wm_adsp2_component_probe); 1135 1136 int wm_adsp2_component_remove(struct wm_adsp *dsp, struct snd_soc_component *component) 1137 { 1138 cs_dsp_cleanup_debugfs(&dsp->cs_dsp); 1139 1140 return 0; 1141 } 1142 EXPORT_SYMBOL_GPL(wm_adsp2_component_remove); 1143 1144 int wm_adsp2_init(struct wm_adsp *dsp) 1145 { 1146 int ret; 1147 1148 INIT_WORK(&dsp->boot_work, wm_adsp_boot_work); 1149 1150 dsp->sys_config_size = sizeof(struct wm_adsp_system_config_xm_hdr); 1151 dsp->cs_dsp.client_ops = &wm_adsp2_client_ops; 1152 1153 ret = cs_dsp_adsp2_init(&dsp->cs_dsp); 1154 if (ret) 1155 return ret; 1156 1157 return wm_adsp_common_init(dsp); 1158 } 1159 EXPORT_SYMBOL_GPL(wm_adsp2_init); 1160 1161 int wm_halo_init(struct wm_adsp *dsp) 1162 { 1163 int ret; 1164 1165 INIT_WORK(&dsp->boot_work, wm_adsp_boot_work); 1166 1167 dsp->sys_config_size = sizeof(struct wm_halo_system_config_xm_hdr); 1168 dsp->cs_dsp.client_ops = &wm_adsp2_client_ops; 1169 1170 ret = cs_dsp_halo_init(&dsp->cs_dsp); 1171 if (ret) 1172 return ret; 1173 1174 return wm_adsp_common_init(dsp); 1175 } 1176 EXPORT_SYMBOL_GPL(wm_halo_init); 1177 1178 void wm_adsp2_remove(struct wm_adsp *dsp) 1179 { 1180 cs_dsp_remove(&dsp->cs_dsp); 1181 } 1182 EXPORT_SYMBOL_GPL(wm_adsp2_remove); 1183 1184 static inline int wm_adsp_compr_attached(struct wm_adsp_compr *compr) 1185 { 1186 return compr->buf != NULL; 1187 } 1188 1189 static int wm_adsp_compr_attach(struct wm_adsp_compr *compr) 1190 { 1191 struct wm_adsp_compr_buf *buf = NULL, *tmp; 1192 1193 if (compr->dsp->fatal_error) 1194 return -EINVAL; 1195 1196 list_for_each_entry(tmp, &compr->dsp->buffer_list, list) { 1197 if (!tmp->name || !strcmp(compr->name, tmp->name)) { 1198 buf = tmp; 1199 break; 1200 } 1201 } 1202 1203 if (!buf) 1204 return -EINVAL; 1205 1206 compr->buf = buf; 1207 buf->compr = compr; 1208 1209 return 0; 1210 } 1211 1212 static void wm_adsp_compr_detach(struct wm_adsp_compr *compr) 1213 { 1214 if (!compr) 1215 return; 1216 1217 /* Wake the poll so it can see buffer is no longer attached */ 1218 if (compr->stream) 1219 snd_compr_fragment_elapsed(compr->stream); 1220 1221 if (wm_adsp_compr_attached(compr)) { 1222 compr->buf->compr = NULL; 1223 compr->buf = NULL; 1224 } 1225 } 1226 1227 int wm_adsp_compr_open(struct wm_adsp *dsp, struct snd_compr_stream *stream) 1228 { 1229 struct wm_adsp_compr *compr, *tmp; 1230 struct snd_soc_pcm_runtime *rtd = stream->private_data; 1231 int ret = 0; 1232 1233 mutex_lock(&dsp->cs_dsp.pwr_lock); 1234 1235 if (wm_adsp_fw[dsp->fw].num_caps == 0) { 1236 adsp_err(dsp, "%s: Firmware does not support compressed API\n", 1237 snd_soc_rtd_to_codec(rtd, 0)->name); 1238 ret = -ENXIO; 1239 goto out; 1240 } 1241 1242 if (wm_adsp_fw[dsp->fw].compr_direction != stream->direction) { 1243 adsp_err(dsp, "%s: Firmware does not support stream direction\n", 1244 snd_soc_rtd_to_codec(rtd, 0)->name); 1245 ret = -EINVAL; 1246 goto out; 1247 } 1248 1249 list_for_each_entry(tmp, &dsp->compr_list, list) { 1250 if (!strcmp(tmp->name, snd_soc_rtd_to_codec(rtd, 0)->name)) { 1251 adsp_err(dsp, "%s: Only a single stream supported per dai\n", 1252 snd_soc_rtd_to_codec(rtd, 0)->name); 1253 ret = -EBUSY; 1254 goto out; 1255 } 1256 } 1257 1258 compr = kzalloc(sizeof(*compr), GFP_KERNEL); 1259 if (!compr) { 1260 ret = -ENOMEM; 1261 goto out; 1262 } 1263 1264 compr->dsp = dsp; 1265 compr->stream = stream; 1266 compr->name = snd_soc_rtd_to_codec(rtd, 0)->name; 1267 1268 list_add_tail(&compr->list, &dsp->compr_list); 1269 1270 stream->runtime->private_data = compr; 1271 1272 out: 1273 mutex_unlock(&dsp->cs_dsp.pwr_lock); 1274 1275 return ret; 1276 } 1277 EXPORT_SYMBOL_GPL(wm_adsp_compr_open); 1278 1279 int wm_adsp_compr_free(struct snd_soc_component *component, 1280 struct snd_compr_stream *stream) 1281 { 1282 struct wm_adsp_compr *compr = stream->runtime->private_data; 1283 struct wm_adsp *dsp = compr->dsp; 1284 1285 mutex_lock(&dsp->cs_dsp.pwr_lock); 1286 1287 wm_adsp_compr_detach(compr); 1288 list_del(&compr->list); 1289 1290 kfree(compr->raw_buf); 1291 kfree(compr); 1292 1293 mutex_unlock(&dsp->cs_dsp.pwr_lock); 1294 1295 return 0; 1296 } 1297 EXPORT_SYMBOL_GPL(wm_adsp_compr_free); 1298 1299 static int wm_adsp_compr_check_params(struct snd_compr_stream *stream, 1300 struct snd_compr_params *params) 1301 { 1302 struct wm_adsp_compr *compr = stream->runtime->private_data; 1303 struct wm_adsp *dsp = compr->dsp; 1304 const struct wm_adsp_fw_caps *caps; 1305 const struct snd_codec_desc *desc; 1306 int i, j; 1307 1308 if (params->buffer.fragment_size < WM_ADSP_MIN_FRAGMENT_SIZE || 1309 params->buffer.fragment_size > WM_ADSP_MAX_FRAGMENT_SIZE || 1310 params->buffer.fragments < WM_ADSP_MIN_FRAGMENTS || 1311 params->buffer.fragments > WM_ADSP_MAX_FRAGMENTS || 1312 params->buffer.fragment_size % CS_DSP_DATA_WORD_SIZE) { 1313 compr_err(compr, "Invalid buffer fragsize=%d fragments=%d\n", 1314 params->buffer.fragment_size, 1315 params->buffer.fragments); 1316 1317 return -EINVAL; 1318 } 1319 1320 for (i = 0; i < wm_adsp_fw[dsp->fw].num_caps; i++) { 1321 caps = &wm_adsp_fw[dsp->fw].caps[i]; 1322 desc = &caps->desc; 1323 1324 if (caps->id != params->codec.id) 1325 continue; 1326 1327 if (stream->direction == SND_COMPRESS_PLAYBACK) { 1328 if (desc->max_ch < params->codec.ch_out) 1329 continue; 1330 } else { 1331 if (desc->max_ch < params->codec.ch_in) 1332 continue; 1333 } 1334 1335 if (!(desc->formats & (1 << params->codec.format))) 1336 continue; 1337 1338 for (j = 0; j < desc->num_sample_rates; ++j) 1339 if (desc->sample_rates[j] == params->codec.sample_rate) 1340 return 0; 1341 } 1342 1343 compr_err(compr, "Invalid params id=%u ch=%u,%u rate=%u fmt=%u\n", 1344 params->codec.id, params->codec.ch_in, params->codec.ch_out, 1345 params->codec.sample_rate, params->codec.format); 1346 return -EINVAL; 1347 } 1348 1349 static inline unsigned int wm_adsp_compr_frag_words(struct wm_adsp_compr *compr) 1350 { 1351 return compr->size.fragment_size / CS_DSP_DATA_WORD_SIZE; 1352 } 1353 1354 int wm_adsp_compr_set_params(struct snd_soc_component *component, 1355 struct snd_compr_stream *stream, 1356 struct snd_compr_params *params) 1357 { 1358 struct wm_adsp_compr *compr = stream->runtime->private_data; 1359 unsigned int size; 1360 int ret; 1361 1362 ret = wm_adsp_compr_check_params(stream, params); 1363 if (ret) 1364 return ret; 1365 1366 compr->size = params->buffer; 1367 1368 compr_dbg(compr, "fragment_size=%d fragments=%d\n", 1369 compr->size.fragment_size, compr->size.fragments); 1370 1371 size = wm_adsp_compr_frag_words(compr) * sizeof(*compr->raw_buf); 1372 compr->raw_buf = kmalloc(size, GFP_DMA | GFP_KERNEL); 1373 if (!compr->raw_buf) 1374 return -ENOMEM; 1375 1376 compr->sample_rate = params->codec.sample_rate; 1377 1378 return 0; 1379 } 1380 EXPORT_SYMBOL_GPL(wm_adsp_compr_set_params); 1381 1382 int wm_adsp_compr_get_caps(struct snd_soc_component *component, 1383 struct snd_compr_stream *stream, 1384 struct snd_compr_caps *caps) 1385 { 1386 struct wm_adsp_compr *compr = stream->runtime->private_data; 1387 int fw = compr->dsp->fw; 1388 int i; 1389 1390 if (wm_adsp_fw[fw].caps) { 1391 for (i = 0; i < wm_adsp_fw[fw].num_caps; i++) 1392 caps->codecs[i] = wm_adsp_fw[fw].caps[i].id; 1393 1394 caps->num_codecs = i; 1395 caps->direction = wm_adsp_fw[fw].compr_direction; 1396 1397 caps->min_fragment_size = WM_ADSP_MIN_FRAGMENT_SIZE; 1398 caps->max_fragment_size = WM_ADSP_MAX_FRAGMENT_SIZE; 1399 caps->min_fragments = WM_ADSP_MIN_FRAGMENTS; 1400 caps->max_fragments = WM_ADSP_MAX_FRAGMENTS; 1401 } 1402 1403 return 0; 1404 } 1405 EXPORT_SYMBOL_GPL(wm_adsp_compr_get_caps); 1406 1407 static inline int wm_adsp_buffer_read(struct wm_adsp_compr_buf *buf, 1408 unsigned int field_offset, u32 *data) 1409 { 1410 return cs_dsp_read_data_word(&buf->dsp->cs_dsp, buf->host_buf_mem_type, 1411 buf->host_buf_ptr + field_offset, data); 1412 } 1413 1414 static inline int wm_adsp_buffer_write(struct wm_adsp_compr_buf *buf, 1415 unsigned int field_offset, u32 data) 1416 { 1417 return cs_dsp_write_data_word(&buf->dsp->cs_dsp, buf->host_buf_mem_type, 1418 buf->host_buf_ptr + field_offset, 1419 data); 1420 } 1421 1422 static int wm_adsp_buffer_populate(struct wm_adsp_compr_buf *buf) 1423 { 1424 const struct wm_adsp_fw_caps *caps = wm_adsp_fw[buf->dsp->fw].caps; 1425 struct wm_adsp_buffer_region *region; 1426 u32 offset = 0; 1427 int i, ret; 1428 1429 buf->regions = kcalloc(caps->num_regions, sizeof(*buf->regions), 1430 GFP_KERNEL); 1431 if (!buf->regions) 1432 return -ENOMEM; 1433 1434 for (i = 0; i < caps->num_regions; ++i) { 1435 region = &buf->regions[i]; 1436 1437 region->offset = offset; 1438 region->mem_type = caps->region_defs[i].mem_type; 1439 1440 ret = wm_adsp_buffer_read(buf, caps->region_defs[i].base_offset, 1441 ®ion->base_addr); 1442 if (ret < 0) 1443 goto err; 1444 1445 ret = wm_adsp_buffer_read(buf, caps->region_defs[i].size_offset, 1446 &offset); 1447 if (ret < 0) 1448 goto err; 1449 1450 region->cumulative_size = offset; 1451 1452 compr_dbg(buf, 1453 "region=%d type=%d base=%08x off=%08x size=%08x\n", 1454 i, region->mem_type, region->base_addr, 1455 region->offset, region->cumulative_size); 1456 } 1457 1458 return 0; 1459 1460 err: 1461 kfree(buf->regions); 1462 return ret; 1463 } 1464 1465 static void wm_adsp_buffer_clear(struct wm_adsp_compr_buf *buf) 1466 { 1467 buf->irq_count = 0xFFFFFFFF; 1468 buf->read_index = -1; 1469 buf->avail = 0; 1470 } 1471 1472 static struct wm_adsp_compr_buf *wm_adsp_buffer_alloc(struct wm_adsp *dsp) 1473 { 1474 struct wm_adsp_compr_buf *buf; 1475 1476 buf = kzalloc(sizeof(*buf), GFP_KERNEL); 1477 if (!buf) 1478 return NULL; 1479 1480 buf->dsp = dsp; 1481 1482 wm_adsp_buffer_clear(buf); 1483 1484 return buf; 1485 } 1486 1487 static int wm_adsp_buffer_parse_legacy(struct wm_adsp *dsp) 1488 { 1489 struct cs_dsp_alg_region *alg_region; 1490 struct wm_adsp_compr_buf *buf; 1491 u32 xmalg, addr, magic; 1492 int i, ret; 1493 1494 alg_region = cs_dsp_find_alg_region(&dsp->cs_dsp, WMFW_ADSP2_XM, dsp->cs_dsp.fw_id); 1495 if (!alg_region) { 1496 adsp_err(dsp, "No algorithm region found\n"); 1497 return -EINVAL; 1498 } 1499 1500 xmalg = dsp->sys_config_size / sizeof(__be32); 1501 1502 addr = alg_region->base + xmalg + ALG_XM_FIELD(magic); 1503 ret = cs_dsp_read_data_word(&dsp->cs_dsp, WMFW_ADSP2_XM, addr, &magic); 1504 if (ret < 0) 1505 return ret; 1506 1507 if (magic != WM_ADSP_ALG_XM_STRUCT_MAGIC) 1508 return -ENODEV; 1509 1510 buf = wm_adsp_buffer_alloc(dsp); 1511 if (!buf) 1512 return -ENOMEM; 1513 1514 addr = alg_region->base + xmalg + ALG_XM_FIELD(host_buf_ptr); 1515 for (i = 0; i < 5; ++i) { 1516 ret = cs_dsp_read_data_word(&dsp->cs_dsp, WMFW_ADSP2_XM, addr, 1517 &buf->host_buf_ptr); 1518 if (ret < 0) 1519 goto err; 1520 1521 if (buf->host_buf_ptr) 1522 break; 1523 1524 usleep_range(1000, 2000); 1525 } 1526 1527 if (!buf->host_buf_ptr) { 1528 ret = -EIO; 1529 goto err; 1530 } 1531 1532 buf->host_buf_mem_type = WMFW_ADSP2_XM; 1533 1534 ret = wm_adsp_buffer_populate(buf); 1535 if (ret < 0) 1536 goto err; 1537 1538 list_add_tail(&buf->list, &dsp->buffer_list); 1539 1540 compr_dbg(buf, "legacy host_buf_ptr=%x\n", buf->host_buf_ptr); 1541 1542 return 0; 1543 1544 err: 1545 kfree(buf); 1546 1547 return ret; 1548 } 1549 1550 static int wm_adsp_buffer_parse_coeff(struct cs_dsp_coeff_ctl *cs_ctl) 1551 { 1552 struct wm_adsp_host_buf_coeff_v1 coeff_v1; 1553 struct wm_adsp_compr_buf *buf; 1554 struct wm_adsp *dsp = container_of(cs_ctl->dsp, struct wm_adsp, cs_dsp); 1555 unsigned int version = 0; 1556 int ret, i; 1557 1558 for (i = 0; i < 5; ++i) { 1559 ret = cs_dsp_coeff_read_ctrl(cs_ctl, 0, &coeff_v1, 1560 min(cs_ctl->len, sizeof(coeff_v1))); 1561 if (ret < 0) 1562 return ret; 1563 1564 if (coeff_v1.host_buf_ptr) 1565 break; 1566 1567 usleep_range(1000, 2000); 1568 } 1569 1570 if (!coeff_v1.host_buf_ptr) { 1571 adsp_err(dsp, "Failed to acquire host buffer\n"); 1572 return -EIO; 1573 } 1574 1575 buf = wm_adsp_buffer_alloc(dsp); 1576 if (!buf) 1577 return -ENOMEM; 1578 1579 buf->host_buf_mem_type = cs_ctl->alg_region.type; 1580 buf->host_buf_ptr = be32_to_cpu(coeff_v1.host_buf_ptr); 1581 1582 ret = wm_adsp_buffer_populate(buf); 1583 if (ret < 0) 1584 goto err; 1585 1586 /* 1587 * v0 host_buffer coefficients didn't have versioning, so if the 1588 * control is one word, assume version 0. 1589 */ 1590 if (cs_ctl->len == 4) 1591 goto done; 1592 1593 version = be32_to_cpu(coeff_v1.versions) & HOST_BUF_COEFF_COMPAT_VER_MASK; 1594 version >>= HOST_BUF_COEFF_COMPAT_VER_SHIFT; 1595 1596 if (version > HOST_BUF_COEFF_SUPPORTED_COMPAT_VER) { 1597 adsp_err(dsp, 1598 "Host buffer coeff ver %u > supported version %u\n", 1599 version, HOST_BUF_COEFF_SUPPORTED_COMPAT_VER); 1600 ret = -EINVAL; 1601 goto err; 1602 } 1603 1604 cs_dsp_remove_padding((u32 *)&coeff_v1.name, ARRAY_SIZE(coeff_v1.name)); 1605 1606 buf->name = kasprintf(GFP_KERNEL, "%s-dsp-%s", dsp->part, 1607 (char *)&coeff_v1.name); 1608 1609 done: 1610 list_add_tail(&buf->list, &dsp->buffer_list); 1611 1612 compr_dbg(buf, "host_buf_ptr=%x coeff version %u\n", 1613 buf->host_buf_ptr, version); 1614 1615 return version; 1616 1617 err: 1618 kfree(buf); 1619 1620 return ret; 1621 } 1622 1623 static int wm_adsp_buffer_init(struct wm_adsp *dsp) 1624 { 1625 struct cs_dsp_coeff_ctl *cs_ctl; 1626 int ret; 1627 1628 list_for_each_entry(cs_ctl, &dsp->cs_dsp.ctl_list, list) { 1629 if (cs_ctl->type != WMFW_CTL_TYPE_HOST_BUFFER) 1630 continue; 1631 1632 if (!cs_ctl->enabled) 1633 continue; 1634 1635 ret = wm_adsp_buffer_parse_coeff(cs_ctl); 1636 if (ret < 0) { 1637 adsp_err(dsp, "Failed to parse coeff: %d\n", ret); 1638 goto error; 1639 } else if (ret == 0) { 1640 /* Only one buffer supported for version 0 */ 1641 return 0; 1642 } 1643 } 1644 1645 if (list_empty(&dsp->buffer_list)) { 1646 /* Fall back to legacy support */ 1647 ret = wm_adsp_buffer_parse_legacy(dsp); 1648 if (ret == -ENODEV) 1649 adsp_info(dsp, "Legacy support not available\n"); 1650 else if (ret) 1651 adsp_warn(dsp, "Failed to parse legacy: %d\n", ret); 1652 } 1653 1654 return 0; 1655 1656 error: 1657 wm_adsp_buffer_free(dsp); 1658 return ret; 1659 } 1660 1661 static int wm_adsp_buffer_free(struct wm_adsp *dsp) 1662 { 1663 struct wm_adsp_compr_buf *buf, *tmp; 1664 1665 list_for_each_entry_safe(buf, tmp, &dsp->buffer_list, list) { 1666 wm_adsp_compr_detach(buf->compr); 1667 1668 kfree(buf->name); 1669 kfree(buf->regions); 1670 list_del(&buf->list); 1671 kfree(buf); 1672 } 1673 1674 return 0; 1675 } 1676 1677 static int wm_adsp_buffer_get_error(struct wm_adsp_compr_buf *buf) 1678 { 1679 int ret; 1680 1681 ret = wm_adsp_buffer_read(buf, HOST_BUFFER_FIELD(error), &buf->error); 1682 if (ret < 0) { 1683 compr_err(buf, "Failed to check buffer error: %d\n", ret); 1684 return ret; 1685 } 1686 if (buf->error != 0) { 1687 compr_err(buf, "Buffer error occurred: %d\n", buf->error); 1688 return -EIO; 1689 } 1690 1691 return 0; 1692 } 1693 1694 int wm_adsp_compr_trigger(struct snd_soc_component *component, 1695 struct snd_compr_stream *stream, int cmd) 1696 { 1697 struct wm_adsp_compr *compr = stream->runtime->private_data; 1698 struct wm_adsp *dsp = compr->dsp; 1699 int ret = 0; 1700 1701 compr_dbg(compr, "Trigger: %d\n", cmd); 1702 1703 mutex_lock(&dsp->cs_dsp.pwr_lock); 1704 1705 switch (cmd) { 1706 case SNDRV_PCM_TRIGGER_START: 1707 if (!wm_adsp_compr_attached(compr)) { 1708 ret = wm_adsp_compr_attach(compr); 1709 if (ret < 0) { 1710 compr_err(compr, "Failed to link buffer and stream: %d\n", 1711 ret); 1712 break; 1713 } 1714 } 1715 1716 ret = wm_adsp_buffer_get_error(compr->buf); 1717 if (ret < 0) 1718 break; 1719 1720 /* Trigger the IRQ at one fragment of data */ 1721 ret = wm_adsp_buffer_write(compr->buf, 1722 HOST_BUFFER_FIELD(high_water_mark), 1723 wm_adsp_compr_frag_words(compr)); 1724 if (ret < 0) { 1725 compr_err(compr, "Failed to set high water mark: %d\n", 1726 ret); 1727 break; 1728 } 1729 break; 1730 case SNDRV_PCM_TRIGGER_STOP: 1731 if (wm_adsp_compr_attached(compr)) 1732 wm_adsp_buffer_clear(compr->buf); 1733 break; 1734 default: 1735 ret = -EINVAL; 1736 break; 1737 } 1738 1739 mutex_unlock(&dsp->cs_dsp.pwr_lock); 1740 1741 return ret; 1742 } 1743 EXPORT_SYMBOL_GPL(wm_adsp_compr_trigger); 1744 1745 static inline int wm_adsp_buffer_size(struct wm_adsp_compr_buf *buf) 1746 { 1747 int last_region = wm_adsp_fw[buf->dsp->fw].caps->num_regions - 1; 1748 1749 return buf->regions[last_region].cumulative_size; 1750 } 1751 1752 static int wm_adsp_buffer_update_avail(struct wm_adsp_compr_buf *buf) 1753 { 1754 u32 next_read_index, next_write_index; 1755 int write_index, read_index, avail; 1756 int ret; 1757 1758 /* Only sync read index if we haven't already read a valid index */ 1759 if (buf->read_index < 0) { 1760 ret = wm_adsp_buffer_read(buf, 1761 HOST_BUFFER_FIELD(next_read_index), 1762 &next_read_index); 1763 if (ret < 0) 1764 return ret; 1765 1766 read_index = sign_extend32(next_read_index, 23); 1767 1768 if (read_index < 0) { 1769 compr_dbg(buf, "Avail check on unstarted stream\n"); 1770 return 0; 1771 } 1772 1773 buf->read_index = read_index; 1774 } 1775 1776 ret = wm_adsp_buffer_read(buf, HOST_BUFFER_FIELD(next_write_index), 1777 &next_write_index); 1778 if (ret < 0) 1779 return ret; 1780 1781 write_index = sign_extend32(next_write_index, 23); 1782 1783 avail = write_index - buf->read_index; 1784 if (avail < 0) 1785 avail += wm_adsp_buffer_size(buf); 1786 1787 compr_dbg(buf, "readindex=0x%x, writeindex=0x%x, avail=%d\n", 1788 buf->read_index, write_index, avail * CS_DSP_DATA_WORD_SIZE); 1789 1790 buf->avail = avail; 1791 1792 return 0; 1793 } 1794 1795 int wm_adsp_compr_handle_irq(struct wm_adsp *dsp) 1796 { 1797 struct wm_adsp_compr_buf *buf; 1798 struct wm_adsp_compr *compr; 1799 int ret = 0; 1800 1801 mutex_lock(&dsp->cs_dsp.pwr_lock); 1802 1803 if (list_empty(&dsp->buffer_list)) { 1804 ret = -ENODEV; 1805 goto out; 1806 } 1807 1808 adsp_dbg(dsp, "Handling buffer IRQ\n"); 1809 1810 list_for_each_entry(buf, &dsp->buffer_list, list) { 1811 compr = buf->compr; 1812 1813 ret = wm_adsp_buffer_get_error(buf); 1814 if (ret < 0) 1815 goto out_notify; /* Wake poll to report error */ 1816 1817 ret = wm_adsp_buffer_read(buf, HOST_BUFFER_FIELD(irq_count), 1818 &buf->irq_count); 1819 if (ret < 0) { 1820 compr_err(buf, "Failed to get irq_count: %d\n", ret); 1821 goto out; 1822 } 1823 1824 ret = wm_adsp_buffer_update_avail(buf); 1825 if (ret < 0) { 1826 compr_err(buf, "Error reading avail: %d\n", ret); 1827 goto out; 1828 } 1829 1830 if (wm_adsp_fw[dsp->fw].voice_trigger && buf->irq_count == 2) 1831 ret = WM_ADSP_COMPR_VOICE_TRIGGER; 1832 1833 out_notify: 1834 if (compr && compr->stream) 1835 snd_compr_fragment_elapsed(compr->stream); 1836 } 1837 1838 out: 1839 mutex_unlock(&dsp->cs_dsp.pwr_lock); 1840 1841 return ret; 1842 } 1843 EXPORT_SYMBOL_GPL(wm_adsp_compr_handle_irq); 1844 1845 static int wm_adsp_buffer_reenable_irq(struct wm_adsp_compr_buf *buf) 1846 { 1847 if (buf->irq_count & 0x01) 1848 return 0; 1849 1850 compr_dbg(buf, "Enable IRQ(0x%x) for next fragment\n", buf->irq_count); 1851 1852 buf->irq_count |= 0x01; 1853 1854 return wm_adsp_buffer_write(buf, HOST_BUFFER_FIELD(irq_ack), 1855 buf->irq_count); 1856 } 1857 1858 int wm_adsp_compr_pointer(struct snd_soc_component *component, 1859 struct snd_compr_stream *stream, 1860 struct snd_compr_tstamp *tstamp) 1861 { 1862 struct wm_adsp_compr *compr = stream->runtime->private_data; 1863 struct wm_adsp *dsp = compr->dsp; 1864 struct wm_adsp_compr_buf *buf; 1865 int ret = 0; 1866 1867 compr_dbg(compr, "Pointer request\n"); 1868 1869 mutex_lock(&dsp->cs_dsp.pwr_lock); 1870 1871 buf = compr->buf; 1872 1873 if (dsp->fatal_error || !buf || buf->error) { 1874 snd_compr_stop_error(stream, SNDRV_PCM_STATE_XRUN); 1875 ret = -EIO; 1876 goto out; 1877 } 1878 1879 if (buf->avail < wm_adsp_compr_frag_words(compr)) { 1880 ret = wm_adsp_buffer_update_avail(buf); 1881 if (ret < 0) { 1882 compr_err(compr, "Error reading avail: %d\n", ret); 1883 goto out; 1884 } 1885 1886 /* 1887 * If we really have less than 1 fragment available tell the 1888 * DSP to inform us once a whole fragment is available. 1889 */ 1890 if (buf->avail < wm_adsp_compr_frag_words(compr)) { 1891 ret = wm_adsp_buffer_get_error(buf); 1892 if (ret < 0) { 1893 if (buf->error) 1894 snd_compr_stop_error(stream, 1895 SNDRV_PCM_STATE_XRUN); 1896 goto out; 1897 } 1898 1899 ret = wm_adsp_buffer_reenable_irq(buf); 1900 if (ret < 0) { 1901 compr_err(compr, "Failed to re-enable buffer IRQ: %d\n", 1902 ret); 1903 goto out; 1904 } 1905 } 1906 } 1907 1908 tstamp->copied_total = compr->copied_total; 1909 tstamp->copied_total += buf->avail * CS_DSP_DATA_WORD_SIZE; 1910 tstamp->sampling_rate = compr->sample_rate; 1911 1912 out: 1913 mutex_unlock(&dsp->cs_dsp.pwr_lock); 1914 1915 return ret; 1916 } 1917 EXPORT_SYMBOL_GPL(wm_adsp_compr_pointer); 1918 1919 static int wm_adsp_buffer_capture_block(struct wm_adsp_compr *compr, int target) 1920 { 1921 struct wm_adsp_compr_buf *buf = compr->buf; 1922 unsigned int adsp_addr; 1923 int mem_type, nwords, max_read; 1924 int i, ret; 1925 1926 /* Calculate read parameters */ 1927 for (i = 0; i < wm_adsp_fw[buf->dsp->fw].caps->num_regions; ++i) 1928 if (buf->read_index < buf->regions[i].cumulative_size) 1929 break; 1930 1931 if (i == wm_adsp_fw[buf->dsp->fw].caps->num_regions) 1932 return -EINVAL; 1933 1934 mem_type = buf->regions[i].mem_type; 1935 adsp_addr = buf->regions[i].base_addr + 1936 (buf->read_index - buf->regions[i].offset); 1937 1938 max_read = wm_adsp_compr_frag_words(compr); 1939 nwords = buf->regions[i].cumulative_size - buf->read_index; 1940 1941 if (nwords > target) 1942 nwords = target; 1943 if (nwords > buf->avail) 1944 nwords = buf->avail; 1945 if (nwords > max_read) 1946 nwords = max_read; 1947 if (!nwords) 1948 return 0; 1949 1950 /* Read data from DSP */ 1951 ret = cs_dsp_read_raw_data_block(&buf->dsp->cs_dsp, mem_type, adsp_addr, 1952 nwords, (__be32 *)compr->raw_buf); 1953 if (ret < 0) 1954 return ret; 1955 1956 cs_dsp_remove_padding(compr->raw_buf, nwords); 1957 1958 /* update read index to account for words read */ 1959 buf->read_index += nwords; 1960 if (buf->read_index == wm_adsp_buffer_size(buf)) 1961 buf->read_index = 0; 1962 1963 ret = wm_adsp_buffer_write(buf, HOST_BUFFER_FIELD(next_read_index), 1964 buf->read_index); 1965 if (ret < 0) 1966 return ret; 1967 1968 /* update avail to account for words read */ 1969 buf->avail -= nwords; 1970 1971 return nwords; 1972 } 1973 1974 static int wm_adsp_compr_read(struct wm_adsp_compr *compr, 1975 char __user *buf, size_t count) 1976 { 1977 struct wm_adsp *dsp = compr->dsp; 1978 int ntotal = 0; 1979 int nwords, nbytes; 1980 1981 compr_dbg(compr, "Requested read of %zu bytes\n", count); 1982 1983 if (dsp->fatal_error || !compr->buf || compr->buf->error) { 1984 snd_compr_stop_error(compr->stream, SNDRV_PCM_STATE_XRUN); 1985 return -EIO; 1986 } 1987 1988 count /= CS_DSP_DATA_WORD_SIZE; 1989 1990 do { 1991 nwords = wm_adsp_buffer_capture_block(compr, count); 1992 if (nwords < 0) { 1993 compr_err(compr, "Failed to capture block: %d\n", 1994 nwords); 1995 return nwords; 1996 } 1997 1998 nbytes = nwords * CS_DSP_DATA_WORD_SIZE; 1999 2000 compr_dbg(compr, "Read %d bytes\n", nbytes); 2001 2002 if (copy_to_user(buf + ntotal, compr->raw_buf, nbytes)) { 2003 compr_err(compr, "Failed to copy data to user: %d, %d\n", 2004 ntotal, nbytes); 2005 return -EFAULT; 2006 } 2007 2008 count -= nwords; 2009 ntotal += nbytes; 2010 } while (nwords > 0 && count > 0); 2011 2012 compr->copied_total += ntotal; 2013 2014 return ntotal; 2015 } 2016 2017 int wm_adsp_compr_copy(struct snd_soc_component *component, 2018 struct snd_compr_stream *stream, char __user *buf, 2019 size_t count) 2020 { 2021 struct wm_adsp_compr *compr = stream->runtime->private_data; 2022 struct wm_adsp *dsp = compr->dsp; 2023 int ret; 2024 2025 mutex_lock(&dsp->cs_dsp.pwr_lock); 2026 2027 if (stream->direction == SND_COMPRESS_CAPTURE) 2028 ret = wm_adsp_compr_read(compr, buf, count); 2029 else 2030 ret = -ENOTSUPP; 2031 2032 mutex_unlock(&dsp->cs_dsp.pwr_lock); 2033 2034 return ret; 2035 } 2036 EXPORT_SYMBOL_GPL(wm_adsp_compr_copy); 2037 2038 static void wm_adsp_fatal_error(struct cs_dsp *cs_dsp) 2039 { 2040 struct wm_adsp *dsp = container_of(cs_dsp, struct wm_adsp, cs_dsp); 2041 struct wm_adsp_compr *compr; 2042 2043 dsp->fatal_error = true; 2044 2045 list_for_each_entry(compr, &dsp->compr_list, list) { 2046 if (compr->stream) 2047 snd_compr_fragment_elapsed(compr->stream); 2048 } 2049 } 2050 2051 irqreturn_t wm_adsp2_bus_error(int irq, void *data) 2052 { 2053 struct wm_adsp *dsp = (struct wm_adsp *)data; 2054 2055 cs_dsp_adsp2_bus_error(&dsp->cs_dsp); 2056 2057 return IRQ_HANDLED; 2058 } 2059 EXPORT_SYMBOL_GPL(wm_adsp2_bus_error); 2060 2061 irqreturn_t wm_halo_bus_error(int irq, void *data) 2062 { 2063 struct wm_adsp *dsp = (struct wm_adsp *)data; 2064 2065 cs_dsp_halo_bus_error(&dsp->cs_dsp); 2066 2067 return IRQ_HANDLED; 2068 } 2069 EXPORT_SYMBOL_GPL(wm_halo_bus_error); 2070 2071 irqreturn_t wm_halo_wdt_expire(int irq, void *data) 2072 { 2073 struct wm_adsp *dsp = data; 2074 2075 cs_dsp_halo_wdt_expire(&dsp->cs_dsp); 2076 2077 return IRQ_HANDLED; 2078 } 2079 EXPORT_SYMBOL_GPL(wm_halo_wdt_expire); 2080 2081 static const struct cs_dsp_client_ops wm_adsp1_client_ops = { 2082 .control_add = wm_adsp_control_add, 2083 .control_remove = wm_adsp_control_remove, 2084 }; 2085 2086 static const struct cs_dsp_client_ops wm_adsp2_client_ops = { 2087 .control_add = wm_adsp_control_add, 2088 .control_remove = wm_adsp_control_remove, 2089 .pre_run = wm_adsp_pre_run, 2090 .post_run = wm_adsp_event_post_run, 2091 .post_stop = wm_adsp_event_post_stop, 2092 .watchdog_expired = wm_adsp_fatal_error, 2093 }; 2094 2095 MODULE_LICENSE("GPL v2"); 2096 MODULE_IMPORT_NS(FW_CS_DSP); 2097