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 54static const struct cs_dsp_client_ops wm_adsp1_client_ops; 55static 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 73static 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 89struct 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 102struct wm_halo_system_config_xm_hdr { 103 __be32 halo_heartbeat; 104 __be32 build_job_name[3]; 105 __be32 build_job_number; 106} __packed; 107 108struct 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 119struct 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 125struct 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 146struct wm_adsp_compr; 147 148struct 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 165struct 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 199static int wm_adsp_buffer_init(struct wm_adsp *dsp); 200static int wm_adsp_buffer_free(struct wm_adsp *dsp); 201 202struct 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 209struct wm_adsp_buffer_region_def { 210 unsigned int mem_type; 211 unsigned int base_offset; 212 unsigned int size_offset; 213}; 214 215static 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 233struct 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 240static 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 254static 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 272static 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 310struct 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 317int 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} 328EXPORT_SYMBOL_GPL(wm_adsp_fw_get); 329 330int 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} 355EXPORT_SYMBOL_GPL(wm_adsp_fw_put); 356 357const 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}; 366EXPORT_SYMBOL_GPL(wm_adsp_fw_enum); 367 368static 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 373static 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 398static 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 415static 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 441static 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 469static 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 486static 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 507static 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 522static 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 553static 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 597static 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 667err_ctl: 668 kfree(ctl); 669 670 return ret; 671} 672 673static 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 683int 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; 687 struct wm_coeff_ctl *ctl; 688 int ret; 689 690 mutex_lock(&dsp->cs_dsp.pwr_lock); 691 cs_ctl = cs_dsp_get_ctl(&dsp->cs_dsp, name, type, alg); 692 ret = cs_dsp_coeff_write_ctrl(cs_ctl, 0, buf, len); 693 mutex_unlock(&dsp->cs_dsp.pwr_lock); 694 695 if (ret < 0) 696 return ret; 697 698 if (ret == 0 || (cs_ctl->flags & WMFW_CTL_FLAG_SYS)) 699 return 0; 700 701 ctl = cs_ctl->priv; 702 703 return snd_soc_component_notify_control(dsp->component, ctl->name); 704} 705EXPORT_SYMBOL_GPL(wm_adsp_write_ctl); 706 707int wm_adsp_read_ctl(struct wm_adsp *dsp, const char *name, int type, 708 unsigned int alg, void *buf, size_t len) 709{ 710 int ret; 711 712 mutex_lock(&dsp->cs_dsp.pwr_lock); 713 ret = cs_dsp_coeff_read_ctrl(cs_dsp_get_ctl(&dsp->cs_dsp, name, type, alg), 714 0, buf, len); 715 mutex_unlock(&dsp->cs_dsp.pwr_lock); 716 717 return ret; 718} 719EXPORT_SYMBOL_GPL(wm_adsp_read_ctl); 720 721static void wm_adsp_release_firmware_files(struct wm_adsp *dsp, 722 const struct firmware *wmfw_firmware, 723 char *wmfw_filename, 724 const struct firmware *coeff_firmware, 725 char *coeff_filename) 726{ 727 if (wmfw_firmware) 728 release_firmware(wmfw_firmware); 729 kfree(wmfw_filename); 730 731 if (coeff_firmware) 732 release_firmware(coeff_firmware); 733 kfree(coeff_filename); 734} 735 736static int wm_adsp_request_firmware_file(struct wm_adsp *dsp, 737 const struct firmware **firmware, char **filename, 738 const char *dir, const char *system_name, 739 const char *asoc_component_prefix, 740 const char *filetype) 741{ 742 struct cs_dsp *cs_dsp = &dsp->cs_dsp; 743 const char *fwf; 744 char *s, c; 745 int ret = 0; 746 747 if (dsp->fwf_name) 748 fwf = dsp->fwf_name; 749 else 750 fwf = dsp->cs_dsp.name; 751 752 if (system_name && asoc_component_prefix) 753 *filename = kasprintf(GFP_KERNEL, "%s%s-%s-%s-%s-%s.%s", dir, dsp->part, 754 fwf, wm_adsp_fw[dsp->fw].file, system_name, 755 asoc_component_prefix, filetype); 756 else if (system_name) 757 *filename = kasprintf(GFP_KERNEL, "%s%s-%s-%s-%s.%s", dir, dsp->part, 758 fwf, wm_adsp_fw[dsp->fw].file, system_name, 759 filetype); 760 else 761 *filename = kasprintf(GFP_KERNEL, "%s%s-%s-%s.%s", dir, dsp->part, fwf, 762 wm_adsp_fw[dsp->fw].file, filetype); 763 764 if (*filename == NULL) 765 return -ENOMEM; 766 767 /* 768 * Make sure that filename is lower-case and any non alpha-numeric 769 * characters except full stop and forward slash are replaced with 770 * hyphens. 771 */ 772 s = *filename; 773 while (*s) { 774 c = *s; 775 if (isalnum(c)) 776 *s = tolower(c); 777 else if ((c != '.') && (c != '/')) 778 *s = '-'; 779 s++; 780 } 781 782 ret = firmware_request_nowarn(firmware, *filename, cs_dsp->dev); 783 if (ret != 0) { 784 adsp_dbg(dsp, "Failed to request '%s'\n", *filename); 785 kfree(*filename); 786 *filename = NULL; 787 } else { 788 adsp_dbg(dsp, "Found '%s'\n", *filename); 789 } 790 791 return ret; 792} 793 794static const char *cirrus_dir = "cirrus/"; 795static int wm_adsp_request_firmware_files(struct wm_adsp *dsp, 796 const struct firmware **wmfw_firmware, 797 char **wmfw_filename, 798 const struct firmware **coeff_firmware, 799 char **coeff_filename) 800{ 801 const char *system_name = dsp->system_name; 802 const char *asoc_component_prefix = dsp->component->name_prefix; 803 int ret = 0; 804 805 if (system_name && asoc_component_prefix) { 806 if (!wm_adsp_request_firmware_file(dsp, wmfw_firmware, wmfw_filename, 807 cirrus_dir, system_name, 808 asoc_component_prefix, "wmfw")) { 809 wm_adsp_request_firmware_file(dsp, coeff_firmware, coeff_filename, 810 cirrus_dir, system_name, 811 asoc_component_prefix, "bin"); 812 return 0; 813 } 814 } 815 816 if (system_name) { 817 if (!wm_adsp_request_firmware_file(dsp, wmfw_firmware, wmfw_filename, 818 cirrus_dir, system_name, 819 NULL, "wmfw")) { 820 if (asoc_component_prefix) 821 wm_adsp_request_firmware_file(dsp, coeff_firmware, coeff_filename, 822 cirrus_dir, system_name, 823 asoc_component_prefix, "bin"); 824 825 if (!*coeff_firmware) 826 wm_adsp_request_firmware_file(dsp, coeff_firmware, coeff_filename, 827 cirrus_dir, system_name, 828 NULL, "bin"); 829 return 0; 830 } 831 } 832 833 /* Check system-specific bin without wmfw before falling back to generic */ 834 if (dsp->wmfw_optional && system_name) { 835 if (asoc_component_prefix) 836 wm_adsp_request_firmware_file(dsp, coeff_firmware, coeff_filename, 837 cirrus_dir, system_name, 838 asoc_component_prefix, "bin"); 839 840 if (!*coeff_firmware) 841 wm_adsp_request_firmware_file(dsp, coeff_firmware, coeff_filename, 842 cirrus_dir, system_name, 843 NULL, "bin"); 844 845 if (*coeff_firmware) 846 return 0; 847 } 848 849 /* Check legacy location */ 850 if (!wm_adsp_request_firmware_file(dsp, wmfw_firmware, wmfw_filename, 851 "", NULL, NULL, "wmfw")) { 852 wm_adsp_request_firmware_file(dsp, coeff_firmware, coeff_filename, 853 "", NULL, NULL, "bin"); 854 return 0; 855 } 856 857 /* Fall back to generic wmfw and optional matching bin */ 858 ret = wm_adsp_request_firmware_file(dsp, wmfw_firmware, wmfw_filename, 859 cirrus_dir, NULL, NULL, "wmfw"); 860 if (!ret || dsp->wmfw_optional) { 861 wm_adsp_request_firmware_file(dsp, coeff_firmware, coeff_filename, 862 cirrus_dir, NULL, NULL, "bin"); 863 return 0; 864 } 865 866 adsp_err(dsp, "Failed to request firmware <%s>%s-%s-%s<-%s<%s>>.wmfw\n", 867 cirrus_dir, dsp->part, 868 dsp->fwf_name ? dsp->fwf_name : dsp->cs_dsp.name, 869 wm_adsp_fw[dsp->fw].file, system_name, asoc_component_prefix); 870 871 return -ENOENT; 872} 873 874static int wm_adsp_common_init(struct wm_adsp *dsp) 875{ 876 INIT_LIST_HEAD(&dsp->compr_list); 877 INIT_LIST_HEAD(&dsp->buffer_list); 878 879 return 0; 880} 881 882int wm_adsp1_init(struct wm_adsp *dsp) 883{ 884 int ret; 885 886 dsp->cs_dsp.client_ops = &wm_adsp1_client_ops; 887 888 ret = cs_dsp_adsp1_init(&dsp->cs_dsp); 889 if (ret) 890 return ret; 891 892 return wm_adsp_common_init(dsp); 893} 894EXPORT_SYMBOL_GPL(wm_adsp1_init); 895 896int wm_adsp1_event(struct snd_soc_dapm_widget *w, 897 struct snd_kcontrol *kcontrol, 898 int event) 899{ 900 struct snd_soc_component *component = snd_soc_dapm_to_component(w->dapm); 901 struct wm_adsp *dsps = snd_soc_component_get_drvdata(component); 902 struct wm_adsp *dsp = &dsps[w->shift]; 903 int ret = 0; 904 char *wmfw_filename = NULL; 905 const struct firmware *wmfw_firmware = NULL; 906 char *coeff_filename = NULL; 907 const struct firmware *coeff_firmware = NULL; 908 909 dsp->component = component; 910 911 switch (event) { 912 case SND_SOC_DAPM_POST_PMU: 913 ret = wm_adsp_request_firmware_files(dsp, 914 &wmfw_firmware, &wmfw_filename, 915 &coeff_firmware, &coeff_filename); 916 if (ret) 917 break; 918 919 ret = cs_dsp_adsp1_power_up(&dsp->cs_dsp, 920 wmfw_firmware, wmfw_filename, 921 coeff_firmware, coeff_filename, 922 wm_adsp_fw_text[dsp->fw]); 923 924 wm_adsp_release_firmware_files(dsp, 925 wmfw_firmware, wmfw_filename, 926 coeff_firmware, coeff_filename); 927 break; 928 case SND_SOC_DAPM_PRE_PMD: 929 cs_dsp_adsp1_power_down(&dsp->cs_dsp); 930 break; 931 default: 932 break; 933 } 934 935 return ret; 936} 937EXPORT_SYMBOL_GPL(wm_adsp1_event); 938 939int wm_adsp2_set_dspclk(struct snd_soc_dapm_widget *w, unsigned int freq) 940{ 941 struct snd_soc_component *component = snd_soc_dapm_to_component(w->dapm); 942 struct wm_adsp *dsps = snd_soc_component_get_drvdata(component); 943 struct wm_adsp *dsp = &dsps[w->shift]; 944 945 return cs_dsp_set_dspclk(&dsp->cs_dsp, freq); 946} 947EXPORT_SYMBOL_GPL(wm_adsp2_set_dspclk); 948 949int wm_adsp2_preloader_get(struct snd_kcontrol *kcontrol, 950 struct snd_ctl_elem_value *ucontrol) 951{ 952 struct snd_soc_component *component = snd_soc_kcontrol_component(kcontrol); 953 struct wm_adsp *dsps = snd_soc_component_get_drvdata(component); 954 struct soc_mixer_control *mc = 955 (struct soc_mixer_control *)kcontrol->private_value; 956 struct wm_adsp *dsp = &dsps[mc->shift - 1]; 957 958 ucontrol->value.integer.value[0] = dsp->preloaded; 959 960 return 0; 961} 962EXPORT_SYMBOL_GPL(wm_adsp2_preloader_get); 963 964int wm_adsp2_preloader_put(struct snd_kcontrol *kcontrol, 965 struct snd_ctl_elem_value *ucontrol) 966{ 967 struct snd_soc_component *component = snd_soc_kcontrol_component(kcontrol); 968 struct wm_adsp *dsps = snd_soc_component_get_drvdata(component); 969 struct snd_soc_dapm_context *dapm = snd_soc_component_get_dapm(component); 970 struct soc_mixer_control *mc = 971 (struct soc_mixer_control *)kcontrol->private_value; 972 struct wm_adsp *dsp = &dsps[mc->shift - 1]; 973 char preload[32]; 974 975 if (dsp->preloaded == ucontrol->value.integer.value[0]) 976 return 0; 977 978 snprintf(preload, ARRAY_SIZE(preload), "%s Preload", dsp->cs_dsp.name); 979 980 if (ucontrol->value.integer.value[0] || dsp->toggle_preload) 981 snd_soc_component_force_enable_pin(component, preload); 982 else 983 snd_soc_component_disable_pin(component, preload); 984 985 snd_soc_dapm_sync(dapm); 986 987 flush_work(&dsp->boot_work); 988 989 dsp->preloaded = ucontrol->value.integer.value[0]; 990 991 if (dsp->toggle_preload) { 992 snd_soc_component_disable_pin(component, preload); 993 snd_soc_dapm_sync(dapm); 994 } 995 996 return 1; 997} 998EXPORT_SYMBOL_GPL(wm_adsp2_preloader_put); 999 1000int wm_adsp_power_up(struct wm_adsp *dsp, bool load_firmware) 1001{ 1002 int ret = 0; 1003 char *wmfw_filename = NULL; 1004 const struct firmware *wmfw_firmware = NULL; 1005 char *coeff_filename = NULL; 1006 const struct firmware *coeff_firmware = NULL; 1007 1008 if (load_firmware) { 1009 ret = wm_adsp_request_firmware_files(dsp, 1010 &wmfw_firmware, &wmfw_filename, 1011 &coeff_firmware, &coeff_filename); 1012 if (ret) 1013 return ret; 1014 } 1015 1016 ret = cs_dsp_power_up(&dsp->cs_dsp, 1017 wmfw_firmware, wmfw_filename, 1018 coeff_firmware, coeff_filename, 1019 wm_adsp_fw_text[dsp->fw]); 1020 1021 wm_adsp_release_firmware_files(dsp, 1022 wmfw_firmware, wmfw_filename, 1023 coeff_firmware, coeff_filename); 1024 1025 return ret; 1026} 1027EXPORT_SYMBOL_GPL(wm_adsp_power_up); 1028 1029void wm_adsp_power_down(struct wm_adsp *dsp) 1030{ 1031 cs_dsp_power_down(&dsp->cs_dsp); 1032} 1033EXPORT_SYMBOL_GPL(wm_adsp_power_down); 1034 1035static void wm_adsp_boot_work(struct work_struct *work) 1036{ 1037 struct wm_adsp *dsp = container_of(work, 1038 struct wm_adsp, 1039 boot_work); 1040 1041 wm_adsp_power_up(dsp, true); 1042} 1043 1044int wm_adsp_early_event(struct snd_soc_dapm_widget *w, 1045 struct snd_kcontrol *kcontrol, int event) 1046{ 1047 struct snd_soc_component *component = snd_soc_dapm_to_component(w->dapm); 1048 struct wm_adsp *dsps = snd_soc_component_get_drvdata(component); 1049 struct wm_adsp *dsp = &dsps[w->shift]; 1050 1051 switch (event) { 1052 case SND_SOC_DAPM_PRE_PMU: 1053 queue_work(system_unbound_wq, &dsp->boot_work); 1054 break; 1055 case SND_SOC_DAPM_PRE_PMD: 1056 wm_adsp_power_down(dsp); 1057 break; 1058 default: 1059 break; 1060 } 1061 1062 return 0; 1063} 1064EXPORT_SYMBOL_GPL(wm_adsp_early_event); 1065 1066static int wm_adsp_pre_run(struct cs_dsp *cs_dsp) 1067{ 1068 struct wm_adsp *dsp = container_of(cs_dsp, struct wm_adsp, cs_dsp); 1069 1070 if (!dsp->pre_run) 1071 return 0; 1072 1073 return (*dsp->pre_run)(dsp); 1074} 1075 1076static int wm_adsp_event_post_run(struct cs_dsp *cs_dsp) 1077{ 1078 struct wm_adsp *dsp = container_of(cs_dsp, struct wm_adsp, cs_dsp); 1079 1080 if (wm_adsp_fw[dsp->fw].num_caps != 0) 1081 return wm_adsp_buffer_init(dsp); 1082 1083 return 0; 1084} 1085 1086static void wm_adsp_event_post_stop(struct cs_dsp *cs_dsp) 1087{ 1088 struct wm_adsp *dsp = container_of(cs_dsp, struct wm_adsp, cs_dsp); 1089 1090 if (wm_adsp_fw[dsp->fw].num_caps != 0) 1091 wm_adsp_buffer_free(dsp); 1092 1093 dsp->fatal_error = false; 1094} 1095 1096int wm_adsp_run(struct wm_adsp *dsp) 1097{ 1098 flush_work(&dsp->boot_work); 1099 1100 return cs_dsp_run(&dsp->cs_dsp); 1101} 1102EXPORT_SYMBOL_GPL(wm_adsp_run); 1103 1104void wm_adsp_stop(struct wm_adsp *dsp) 1105{ 1106 cs_dsp_stop(&dsp->cs_dsp); 1107} 1108EXPORT_SYMBOL_GPL(wm_adsp_stop); 1109 1110int wm_adsp_event(struct snd_soc_dapm_widget *w, 1111 struct snd_kcontrol *kcontrol, int event) 1112{ 1113 struct snd_soc_component *component = snd_soc_dapm_to_component(w->dapm); 1114 struct wm_adsp *dsps = snd_soc_component_get_drvdata(component); 1115 struct wm_adsp *dsp = &dsps[w->shift]; 1116 1117 switch (event) { 1118 case SND_SOC_DAPM_POST_PMU: 1119 return wm_adsp_run(dsp); 1120 case SND_SOC_DAPM_PRE_PMD: 1121 wm_adsp_stop(dsp); 1122 return 0; 1123 default: 1124 return 0; 1125 } 1126} 1127EXPORT_SYMBOL_GPL(wm_adsp_event); 1128 1129int wm_adsp2_component_probe(struct wm_adsp *dsp, struct snd_soc_component *component) 1130{ 1131 char preload[32]; 1132 1133 if (!dsp->cs_dsp.no_core_startstop) { 1134 snprintf(preload, ARRAY_SIZE(preload), "%s Preload", dsp->cs_dsp.name); 1135 snd_soc_component_disable_pin(component, preload); 1136 } 1137 1138 cs_dsp_init_debugfs(&dsp->cs_dsp, component->debugfs_root); 1139 1140 dsp->component = component; 1141 1142 return 0; 1143} 1144EXPORT_SYMBOL_GPL(wm_adsp2_component_probe); 1145 1146int wm_adsp2_component_remove(struct wm_adsp *dsp, struct snd_soc_component *component) 1147{ 1148 cs_dsp_cleanup_debugfs(&dsp->cs_dsp); 1149 1150 return 0; 1151} 1152EXPORT_SYMBOL_GPL(wm_adsp2_component_remove); 1153 1154int wm_adsp2_init(struct wm_adsp *dsp) 1155{ 1156 int ret; 1157 1158 INIT_WORK(&dsp->boot_work, wm_adsp_boot_work); 1159 1160 dsp->sys_config_size = sizeof(struct wm_adsp_system_config_xm_hdr); 1161 dsp->cs_dsp.client_ops = &wm_adsp2_client_ops; 1162 1163 ret = cs_dsp_adsp2_init(&dsp->cs_dsp); 1164 if (ret) 1165 return ret; 1166 1167 return wm_adsp_common_init(dsp); 1168} 1169EXPORT_SYMBOL_GPL(wm_adsp2_init); 1170 1171int wm_halo_init(struct wm_adsp *dsp) 1172{ 1173 int ret; 1174 1175 INIT_WORK(&dsp->boot_work, wm_adsp_boot_work); 1176 1177 dsp->sys_config_size = sizeof(struct wm_halo_system_config_xm_hdr); 1178 dsp->cs_dsp.client_ops = &wm_adsp2_client_ops; 1179 1180 ret = cs_dsp_halo_init(&dsp->cs_dsp); 1181 if (ret) 1182 return ret; 1183 1184 return wm_adsp_common_init(dsp); 1185} 1186EXPORT_SYMBOL_GPL(wm_halo_init); 1187 1188void wm_adsp2_remove(struct wm_adsp *dsp) 1189{ 1190 cs_dsp_remove(&dsp->cs_dsp); 1191} 1192EXPORT_SYMBOL_GPL(wm_adsp2_remove); 1193 1194static inline int wm_adsp_compr_attached(struct wm_adsp_compr *compr) 1195{ 1196 return compr->buf != NULL; 1197} 1198 1199static int wm_adsp_compr_attach(struct wm_adsp_compr *compr) 1200{ 1201 struct wm_adsp_compr_buf *buf = NULL, *tmp; 1202 1203 if (compr->dsp->fatal_error) 1204 return -EINVAL; 1205 1206 list_for_each_entry(tmp, &compr->dsp->buffer_list, list) { 1207 if (!tmp->name || !strcmp(compr->name, tmp->name)) { 1208 buf = tmp; 1209 break; 1210 } 1211 } 1212 1213 if (!buf) 1214 return -EINVAL; 1215 1216 compr->buf = buf; 1217 buf->compr = compr; 1218 1219 return 0; 1220} 1221 1222static void wm_adsp_compr_detach(struct wm_adsp_compr *compr) 1223{ 1224 if (!compr) 1225 return; 1226 1227 /* Wake the poll so it can see buffer is no longer attached */ 1228 if (compr->stream) 1229 snd_compr_fragment_elapsed(compr->stream); 1230 1231 if (wm_adsp_compr_attached(compr)) { 1232 compr->buf->compr = NULL; 1233 compr->buf = NULL; 1234 } 1235} 1236 1237int wm_adsp_compr_open(struct wm_adsp *dsp, struct snd_compr_stream *stream) 1238{ 1239 struct wm_adsp_compr *compr, *tmp; 1240 struct snd_soc_pcm_runtime *rtd = stream->private_data; 1241 int ret = 0; 1242 1243 mutex_lock(&dsp->cs_dsp.pwr_lock); 1244 1245 if (wm_adsp_fw[dsp->fw].num_caps == 0) { 1246 adsp_err(dsp, "%s: Firmware does not support compressed API\n", 1247 snd_soc_rtd_to_codec(rtd, 0)->name); 1248 ret = -ENXIO; 1249 goto out; 1250 } 1251 1252 if (wm_adsp_fw[dsp->fw].compr_direction != stream->direction) { 1253 adsp_err(dsp, "%s: Firmware does not support stream direction\n", 1254 snd_soc_rtd_to_codec(rtd, 0)->name); 1255 ret = -EINVAL; 1256 goto out; 1257 } 1258 1259 list_for_each_entry(tmp, &dsp->compr_list, list) { 1260 if (!strcmp(tmp->name, snd_soc_rtd_to_codec(rtd, 0)->name)) { 1261 adsp_err(dsp, "%s: Only a single stream supported per dai\n", 1262 snd_soc_rtd_to_codec(rtd, 0)->name); 1263 ret = -EBUSY; 1264 goto out; 1265 } 1266 } 1267 1268 compr = kzalloc(sizeof(*compr), GFP_KERNEL); 1269 if (!compr) { 1270 ret = -ENOMEM; 1271 goto out; 1272 } 1273 1274 compr->dsp = dsp; 1275 compr->stream = stream; 1276 compr->name = snd_soc_rtd_to_codec(rtd, 0)->name; 1277 1278 list_add_tail(&compr->list, &dsp->compr_list); 1279 1280 stream->runtime->private_data = compr; 1281 1282out: 1283 mutex_unlock(&dsp->cs_dsp.pwr_lock); 1284 1285 return ret; 1286} 1287EXPORT_SYMBOL_GPL(wm_adsp_compr_open); 1288 1289int wm_adsp_compr_free(struct snd_soc_component *component, 1290 struct snd_compr_stream *stream) 1291{ 1292 struct wm_adsp_compr *compr = stream->runtime->private_data; 1293 struct wm_adsp *dsp = compr->dsp; 1294 1295 mutex_lock(&dsp->cs_dsp.pwr_lock); 1296 1297 wm_adsp_compr_detach(compr); 1298 list_del(&compr->list); 1299 1300 kfree(compr->raw_buf); 1301 kfree(compr); 1302 1303 mutex_unlock(&dsp->cs_dsp.pwr_lock); 1304 1305 return 0; 1306} 1307EXPORT_SYMBOL_GPL(wm_adsp_compr_free); 1308 1309static int wm_adsp_compr_check_params(struct snd_compr_stream *stream, 1310 struct snd_compr_params *params) 1311{ 1312 struct wm_adsp_compr *compr = stream->runtime->private_data; 1313 struct wm_adsp *dsp = compr->dsp; 1314 const struct wm_adsp_fw_caps *caps; 1315 const struct snd_codec_desc *desc; 1316 int i, j; 1317 1318 if (params->buffer.fragment_size < WM_ADSP_MIN_FRAGMENT_SIZE || 1319 params->buffer.fragment_size > WM_ADSP_MAX_FRAGMENT_SIZE || 1320 params->buffer.fragments < WM_ADSP_MIN_FRAGMENTS || 1321 params->buffer.fragments > WM_ADSP_MAX_FRAGMENTS || 1322 params->buffer.fragment_size % CS_DSP_DATA_WORD_SIZE) { 1323 compr_err(compr, "Invalid buffer fragsize=%d fragments=%d\n", 1324 params->buffer.fragment_size, 1325 params->buffer.fragments); 1326 1327 return -EINVAL; 1328 } 1329 1330 for (i = 0; i < wm_adsp_fw[dsp->fw].num_caps; i++) { 1331 caps = &wm_adsp_fw[dsp->fw].caps[i]; 1332 desc = &caps->desc; 1333 1334 if (caps->id != params->codec.id) 1335 continue; 1336 1337 if (stream->direction == SND_COMPRESS_PLAYBACK) { 1338 if (desc->max_ch < params->codec.ch_out) 1339 continue; 1340 } else { 1341 if (desc->max_ch < params->codec.ch_in) 1342 continue; 1343 } 1344 1345 if (!(desc->formats & (1 << params->codec.format))) 1346 continue; 1347 1348 for (j = 0; j < desc->num_sample_rates; ++j) 1349 if (desc->sample_rates[j] == params->codec.sample_rate) 1350 return 0; 1351 } 1352 1353 compr_err(compr, "Invalid params id=%u ch=%u,%u rate=%u fmt=%u\n", 1354 params->codec.id, params->codec.ch_in, params->codec.ch_out, 1355 params->codec.sample_rate, params->codec.format); 1356 return -EINVAL; 1357} 1358 1359static inline unsigned int wm_adsp_compr_frag_words(struct wm_adsp_compr *compr) 1360{ 1361 return compr->size.fragment_size / CS_DSP_DATA_WORD_SIZE; 1362} 1363 1364int wm_adsp_compr_set_params(struct snd_soc_component *component, 1365 struct snd_compr_stream *stream, 1366 struct snd_compr_params *params) 1367{ 1368 struct wm_adsp_compr *compr = stream->runtime->private_data; 1369 unsigned int size; 1370 int ret; 1371 1372 ret = wm_adsp_compr_check_params(stream, params); 1373 if (ret) 1374 return ret; 1375 1376 compr->size = params->buffer; 1377 1378 compr_dbg(compr, "fragment_size=%d fragments=%d\n", 1379 compr->size.fragment_size, compr->size.fragments); 1380 1381 size = wm_adsp_compr_frag_words(compr) * sizeof(*compr->raw_buf); 1382 compr->raw_buf = kmalloc(size, GFP_DMA | GFP_KERNEL); 1383 if (!compr->raw_buf) 1384 return -ENOMEM; 1385 1386 compr->sample_rate = params->codec.sample_rate; 1387 1388 return 0; 1389} 1390EXPORT_SYMBOL_GPL(wm_adsp_compr_set_params); 1391 1392int wm_adsp_compr_get_caps(struct snd_soc_component *component, 1393 struct snd_compr_stream *stream, 1394 struct snd_compr_caps *caps) 1395{ 1396 struct wm_adsp_compr *compr = stream->runtime->private_data; 1397 int fw = compr->dsp->fw; 1398 int i; 1399 1400 if (wm_adsp_fw[fw].caps) { 1401 for (i = 0; i < wm_adsp_fw[fw].num_caps; i++) 1402 caps->codecs[i] = wm_adsp_fw[fw].caps[i].id; 1403 1404 caps->num_codecs = i; 1405 caps->direction = wm_adsp_fw[fw].compr_direction; 1406 1407 caps->min_fragment_size = WM_ADSP_MIN_FRAGMENT_SIZE; 1408 caps->max_fragment_size = WM_ADSP_MAX_FRAGMENT_SIZE; 1409 caps->min_fragments = WM_ADSP_MIN_FRAGMENTS; 1410 caps->max_fragments = WM_ADSP_MAX_FRAGMENTS; 1411 } 1412 1413 return 0; 1414} 1415EXPORT_SYMBOL_GPL(wm_adsp_compr_get_caps); 1416 1417static inline int wm_adsp_buffer_read(struct wm_adsp_compr_buf *buf, 1418 unsigned int field_offset, u32 *data) 1419{ 1420 return cs_dsp_read_data_word(&buf->dsp->cs_dsp, buf->host_buf_mem_type, 1421 buf->host_buf_ptr + field_offset, data); 1422} 1423 1424static inline int wm_adsp_buffer_write(struct wm_adsp_compr_buf *buf, 1425 unsigned int field_offset, u32 data) 1426{ 1427 return cs_dsp_write_data_word(&buf->dsp->cs_dsp, buf->host_buf_mem_type, 1428 buf->host_buf_ptr + field_offset, 1429 data); 1430} 1431 1432static int wm_adsp_buffer_populate(struct wm_adsp_compr_buf *buf) 1433{ 1434 const struct wm_adsp_fw_caps *caps = wm_adsp_fw[buf->dsp->fw].caps; 1435 struct wm_adsp_buffer_region *region; 1436 u32 offset = 0; 1437 int i, ret; 1438 1439 buf->regions = kcalloc(caps->num_regions, sizeof(*buf->regions), 1440 GFP_KERNEL); 1441 if (!buf->regions) 1442 return -ENOMEM; 1443 1444 for (i = 0; i < caps->num_regions; ++i) { 1445 region = &buf->regions[i]; 1446 1447 region->offset = offset; 1448 region->mem_type = caps->region_defs[i].mem_type; 1449 1450 ret = wm_adsp_buffer_read(buf, caps->region_defs[i].base_offset, 1451 ®ion->base_addr); 1452 if (ret < 0) 1453 goto err; 1454 1455 ret = wm_adsp_buffer_read(buf, caps->region_defs[i].size_offset, 1456 &offset); 1457 if (ret < 0) 1458 goto err; 1459 1460 region->cumulative_size = offset; 1461 1462 compr_dbg(buf, 1463 "region=%d type=%d base=%08x off=%08x size=%08x\n", 1464 i, region->mem_type, region->base_addr, 1465 region->offset, region->cumulative_size); 1466 } 1467 1468 return 0; 1469 1470err: 1471 kfree(buf->regions); 1472 return ret; 1473} 1474 1475static void wm_adsp_buffer_clear(struct wm_adsp_compr_buf *buf) 1476{ 1477 buf->irq_count = 0xFFFFFFFF; 1478 buf->read_index = -1; 1479 buf->avail = 0; 1480} 1481 1482static struct wm_adsp_compr_buf *wm_adsp_buffer_alloc(struct wm_adsp *dsp) 1483{ 1484 struct wm_adsp_compr_buf *buf; 1485 1486 buf = kzalloc(sizeof(*buf), GFP_KERNEL); 1487 if (!buf) 1488 return NULL; 1489 1490 buf->dsp = dsp; 1491 1492 wm_adsp_buffer_clear(buf); 1493 1494 return buf; 1495} 1496 1497static int wm_adsp_buffer_parse_legacy(struct wm_adsp *dsp) 1498{ 1499 struct cs_dsp_alg_region *alg_region; 1500 struct wm_adsp_compr_buf *buf; 1501 u32 xmalg, addr, magic; 1502 int i, ret; 1503 1504 alg_region = cs_dsp_find_alg_region(&dsp->cs_dsp, WMFW_ADSP2_XM, dsp->cs_dsp.fw_id); 1505 if (!alg_region) { 1506 adsp_err(dsp, "No algorithm region found\n"); 1507 return -EINVAL; 1508 } 1509 1510 xmalg = dsp->sys_config_size / sizeof(__be32); 1511 1512 addr = alg_region->base + xmalg + ALG_XM_FIELD(magic); 1513 ret = cs_dsp_read_data_word(&dsp->cs_dsp, WMFW_ADSP2_XM, addr, &magic); 1514 if (ret < 0) 1515 return ret; 1516 1517 if (magic != WM_ADSP_ALG_XM_STRUCT_MAGIC) 1518 return -ENODEV; 1519 1520 buf = wm_adsp_buffer_alloc(dsp); 1521 if (!buf) 1522 return -ENOMEM; 1523 1524 addr = alg_region->base + xmalg + ALG_XM_FIELD(host_buf_ptr); 1525 for (i = 0; i < 5; ++i) { 1526 ret = cs_dsp_read_data_word(&dsp->cs_dsp, WMFW_ADSP2_XM, addr, 1527 &buf->host_buf_ptr); 1528 if (ret < 0) 1529 goto err; 1530 1531 if (buf->host_buf_ptr) 1532 break; 1533 1534 usleep_range(1000, 2000); 1535 } 1536 1537 if (!buf->host_buf_ptr) { 1538 ret = -EIO; 1539 goto err; 1540 } 1541 1542 buf->host_buf_mem_type = WMFW_ADSP2_XM; 1543 1544 ret = wm_adsp_buffer_populate(buf); 1545 if (ret < 0) 1546 goto err; 1547 1548 list_add_tail(&buf->list, &dsp->buffer_list); 1549 1550 compr_dbg(buf, "legacy host_buf_ptr=%x\n", buf->host_buf_ptr); 1551 1552 return 0; 1553 1554err: 1555 kfree(buf); 1556 1557 return ret; 1558} 1559 1560static int wm_adsp_buffer_parse_coeff(struct cs_dsp_coeff_ctl *cs_ctl) 1561{ 1562 struct wm_adsp_host_buf_coeff_v1 coeff_v1; 1563 struct wm_adsp_compr_buf *buf; 1564 struct wm_adsp *dsp = container_of(cs_ctl->dsp, struct wm_adsp, cs_dsp); 1565 unsigned int version = 0; 1566 int ret, i; 1567 1568 for (i = 0; i < 5; ++i) { 1569 ret = cs_dsp_coeff_read_ctrl(cs_ctl, 0, &coeff_v1, 1570 min(cs_ctl->len, sizeof(coeff_v1))); 1571 if (ret < 0) 1572 return ret; 1573 1574 if (coeff_v1.host_buf_ptr) 1575 break; 1576 1577 usleep_range(1000, 2000); 1578 } 1579 1580 if (!coeff_v1.host_buf_ptr) { 1581 adsp_err(dsp, "Failed to acquire host buffer\n"); 1582 return -EIO; 1583 } 1584 1585 buf = wm_adsp_buffer_alloc(dsp); 1586 if (!buf) 1587 return -ENOMEM; 1588 1589 buf->host_buf_mem_type = cs_ctl->alg_region.type; 1590 buf->host_buf_ptr = be32_to_cpu(coeff_v1.host_buf_ptr); 1591 1592 ret = wm_adsp_buffer_populate(buf); 1593 if (ret < 0) 1594 goto err; 1595 1596 /* 1597 * v0 host_buffer coefficients didn't have versioning, so if the 1598 * control is one word, assume version 0. 1599 */ 1600 if (cs_ctl->len == 4) 1601 goto done; 1602 1603 version = be32_to_cpu(coeff_v1.versions) & HOST_BUF_COEFF_COMPAT_VER_MASK; 1604 version >>= HOST_BUF_COEFF_COMPAT_VER_SHIFT; 1605 1606 if (version > HOST_BUF_COEFF_SUPPORTED_COMPAT_VER) { 1607 adsp_err(dsp, 1608 "Host buffer coeff ver %u > supported version %u\n", 1609 version, HOST_BUF_COEFF_SUPPORTED_COMPAT_VER); 1610 ret = -EINVAL; 1611 goto err; 1612 } 1613 1614 cs_dsp_remove_padding((u32 *)&coeff_v1.name, ARRAY_SIZE(coeff_v1.name)); 1615 1616 buf->name = kasprintf(GFP_KERNEL, "%s-dsp-%s", dsp->part, 1617 (char *)&coeff_v1.name); 1618 1619done: 1620 list_add_tail(&buf->list, &dsp->buffer_list); 1621 1622 compr_dbg(buf, "host_buf_ptr=%x coeff version %u\n", 1623 buf->host_buf_ptr, version); 1624 1625 return version; 1626 1627err: 1628 kfree(buf); 1629 1630 return ret; 1631} 1632 1633static int wm_adsp_buffer_init(struct wm_adsp *dsp) 1634{ 1635 struct cs_dsp_coeff_ctl *cs_ctl; 1636 int ret; 1637 1638 list_for_each_entry(cs_ctl, &dsp->cs_dsp.ctl_list, list) { 1639 if (cs_ctl->type != WMFW_CTL_TYPE_HOST_BUFFER) 1640 continue; 1641 1642 if (!cs_ctl->enabled) 1643 continue; 1644 1645 ret = wm_adsp_buffer_parse_coeff(cs_ctl); 1646 if (ret < 0) { 1647 adsp_err(dsp, "Failed to parse coeff: %d\n", ret); 1648 goto error; 1649 } else if (ret == 0) { 1650 /* Only one buffer supported for version 0 */ 1651 return 0; 1652 } 1653 } 1654 1655 if (list_empty(&dsp->buffer_list)) { 1656 /* Fall back to legacy support */ 1657 ret = wm_adsp_buffer_parse_legacy(dsp); 1658 if (ret == -ENODEV) 1659 adsp_info(dsp, "Legacy support not available\n"); 1660 else if (ret) 1661 adsp_warn(dsp, "Failed to parse legacy: %d\n", ret); 1662 } 1663 1664 return 0; 1665 1666error: 1667 wm_adsp_buffer_free(dsp); 1668 return ret; 1669} 1670 1671static int wm_adsp_buffer_free(struct wm_adsp *dsp) 1672{ 1673 struct wm_adsp_compr_buf *buf, *tmp; 1674 1675 list_for_each_entry_safe(buf, tmp, &dsp->buffer_list, list) { 1676 wm_adsp_compr_detach(buf->compr); 1677 1678 kfree(buf->name); 1679 kfree(buf->regions); 1680 list_del(&buf->list); 1681 kfree(buf); 1682 } 1683 1684 return 0; 1685} 1686 1687static int wm_adsp_buffer_get_error(struct wm_adsp_compr_buf *buf) 1688{ 1689 int ret; 1690 1691 ret = wm_adsp_buffer_read(buf, HOST_BUFFER_FIELD(error), &buf->error); 1692 if (ret < 0) { 1693 compr_err(buf, "Failed to check buffer error: %d\n", ret); 1694 return ret; 1695 } 1696 if (buf->error != 0) { 1697 compr_err(buf, "Buffer error occurred: %d\n", buf->error); 1698 return -EIO; 1699 } 1700 1701 return 0; 1702} 1703 1704int wm_adsp_compr_trigger(struct snd_soc_component *component, 1705 struct snd_compr_stream *stream, int cmd) 1706{ 1707 struct wm_adsp_compr *compr = stream->runtime->private_data; 1708 struct wm_adsp *dsp = compr->dsp; 1709 int ret = 0; 1710 1711 compr_dbg(compr, "Trigger: %d\n", cmd); 1712 1713 mutex_lock(&dsp->cs_dsp.pwr_lock); 1714 1715 switch (cmd) { 1716 case SNDRV_PCM_TRIGGER_START: 1717 if (!wm_adsp_compr_attached(compr)) { 1718 ret = wm_adsp_compr_attach(compr); 1719 if (ret < 0) { 1720 compr_err(compr, "Failed to link buffer and stream: %d\n", 1721 ret); 1722 break; 1723 } 1724 } 1725 1726 ret = wm_adsp_buffer_get_error(compr->buf); 1727 if (ret < 0) 1728 break; 1729 1730 /* Trigger the IRQ at one fragment of data */ 1731 ret = wm_adsp_buffer_write(compr->buf, 1732 HOST_BUFFER_FIELD(high_water_mark), 1733 wm_adsp_compr_frag_words(compr)); 1734 if (ret < 0) { 1735 compr_err(compr, "Failed to set high water mark: %d\n", 1736 ret); 1737 break; 1738 } 1739 break; 1740 case SNDRV_PCM_TRIGGER_STOP: 1741 if (wm_adsp_compr_attached(compr)) 1742 wm_adsp_buffer_clear(compr->buf); 1743 break; 1744 default: 1745 ret = -EINVAL; 1746 break; 1747 } 1748 1749 mutex_unlock(&dsp->cs_dsp.pwr_lock); 1750 1751 return ret; 1752} 1753EXPORT_SYMBOL_GPL(wm_adsp_compr_trigger); 1754 1755static inline int wm_adsp_buffer_size(struct wm_adsp_compr_buf *buf) 1756{ 1757 int last_region = wm_adsp_fw[buf->dsp->fw].caps->num_regions - 1; 1758 1759 return buf->regions[last_region].cumulative_size; 1760} 1761 1762static int wm_adsp_buffer_update_avail(struct wm_adsp_compr_buf *buf) 1763{ 1764 u32 next_read_index, next_write_index; 1765 int write_index, read_index, avail; 1766 int ret; 1767 1768 /* Only sync read index if we haven't already read a valid index */ 1769 if (buf->read_index < 0) { 1770 ret = wm_adsp_buffer_read(buf, 1771 HOST_BUFFER_FIELD(next_read_index), 1772 &next_read_index); 1773 if (ret < 0) 1774 return ret; 1775 1776 read_index = sign_extend32(next_read_index, 23); 1777 1778 if (read_index < 0) { 1779 compr_dbg(buf, "Avail check on unstarted stream\n"); 1780 return 0; 1781 } 1782 1783 buf->read_index = read_index; 1784 } 1785 1786 ret = wm_adsp_buffer_read(buf, HOST_BUFFER_FIELD(next_write_index), 1787 &next_write_index); 1788 if (ret < 0) 1789 return ret; 1790 1791 write_index = sign_extend32(next_write_index, 23); 1792 1793 avail = write_index - buf->read_index; 1794 if (avail < 0) 1795 avail += wm_adsp_buffer_size(buf); 1796 1797 compr_dbg(buf, "readindex=0x%x, writeindex=0x%x, avail=%d\n", 1798 buf->read_index, write_index, avail * CS_DSP_DATA_WORD_SIZE); 1799 1800 buf->avail = avail; 1801 1802 return 0; 1803} 1804 1805int wm_adsp_compr_handle_irq(struct wm_adsp *dsp) 1806{ 1807 struct wm_adsp_compr_buf *buf; 1808 struct wm_adsp_compr *compr; 1809 int ret = 0; 1810 1811 mutex_lock(&dsp->cs_dsp.pwr_lock); 1812 1813 if (list_empty(&dsp->buffer_list)) { 1814 ret = -ENODEV; 1815 goto out; 1816 } 1817 1818 adsp_dbg(dsp, "Handling buffer IRQ\n"); 1819 1820 list_for_each_entry(buf, &dsp->buffer_list, list) { 1821 compr = buf->compr; 1822 1823 ret = wm_adsp_buffer_get_error(buf); 1824 if (ret < 0) 1825 goto out_notify; /* Wake poll to report error */ 1826 1827 ret = wm_adsp_buffer_read(buf, HOST_BUFFER_FIELD(irq_count), 1828 &buf->irq_count); 1829 if (ret < 0) { 1830 compr_err(buf, "Failed to get irq_count: %d\n", ret); 1831 goto out; 1832 } 1833 1834 ret = wm_adsp_buffer_update_avail(buf); 1835 if (ret < 0) { 1836 compr_err(buf, "Error reading avail: %d\n", ret); 1837 goto out; 1838 } 1839 1840 if (wm_adsp_fw[dsp->fw].voice_trigger && buf->irq_count == 2) 1841 ret = WM_ADSP_COMPR_VOICE_TRIGGER; 1842 1843out_notify: 1844 if (compr && compr->stream) 1845 snd_compr_fragment_elapsed(compr->stream); 1846 } 1847 1848out: 1849 mutex_unlock(&dsp->cs_dsp.pwr_lock); 1850 1851 return ret; 1852} 1853EXPORT_SYMBOL_GPL(wm_adsp_compr_handle_irq); 1854 1855static int wm_adsp_buffer_reenable_irq(struct wm_adsp_compr_buf *buf) 1856{ 1857 if (buf->irq_count & 0x01) 1858 return 0; 1859 1860 compr_dbg(buf, "Enable IRQ(0x%x) for next fragment\n", buf->irq_count); 1861 1862 buf->irq_count |= 0x01; 1863 1864 return wm_adsp_buffer_write(buf, HOST_BUFFER_FIELD(irq_ack), 1865 buf->irq_count); 1866} 1867 1868int wm_adsp_compr_pointer(struct snd_soc_component *component, 1869 struct snd_compr_stream *stream, 1870 struct snd_compr_tstamp *tstamp) 1871{ 1872 struct wm_adsp_compr *compr = stream->runtime->private_data; 1873 struct wm_adsp *dsp = compr->dsp; 1874 struct wm_adsp_compr_buf *buf; 1875 int ret = 0; 1876 1877 compr_dbg(compr, "Pointer request\n"); 1878 1879 mutex_lock(&dsp->cs_dsp.pwr_lock); 1880 1881 buf = compr->buf; 1882 1883 if (dsp->fatal_error || !buf || buf->error) { 1884 snd_compr_stop_error(stream, SNDRV_PCM_STATE_XRUN); 1885 ret = -EIO; 1886 goto out; 1887 } 1888 1889 if (buf->avail < wm_adsp_compr_frag_words(compr)) { 1890 ret = wm_adsp_buffer_update_avail(buf); 1891 if (ret < 0) { 1892 compr_err(compr, "Error reading avail: %d\n", ret); 1893 goto out; 1894 } 1895 1896 /* 1897 * If we really have less than 1 fragment available tell the 1898 * DSP to inform us once a whole fragment is available. 1899 */ 1900 if (buf->avail < wm_adsp_compr_frag_words(compr)) { 1901 ret = wm_adsp_buffer_get_error(buf); 1902 if (ret < 0) { 1903 if (buf->error) 1904 snd_compr_stop_error(stream, 1905 SNDRV_PCM_STATE_XRUN); 1906 goto out; 1907 } 1908 1909 ret = wm_adsp_buffer_reenable_irq(buf); 1910 if (ret < 0) { 1911 compr_err(compr, "Failed to re-enable buffer IRQ: %d\n", 1912 ret); 1913 goto out; 1914 } 1915 } 1916 } 1917 1918 tstamp->copied_total = compr->copied_total; 1919 tstamp->copied_total += buf->avail * CS_DSP_DATA_WORD_SIZE; 1920 tstamp->sampling_rate = compr->sample_rate; 1921 1922out: 1923 mutex_unlock(&dsp->cs_dsp.pwr_lock); 1924 1925 return ret; 1926} 1927EXPORT_SYMBOL_GPL(wm_adsp_compr_pointer); 1928 1929static int wm_adsp_buffer_capture_block(struct wm_adsp_compr *compr, int target) 1930{ 1931 struct wm_adsp_compr_buf *buf = compr->buf; 1932 unsigned int adsp_addr; 1933 int mem_type, nwords, max_read; 1934 int i, ret; 1935 1936 /* Calculate read parameters */ 1937 for (i = 0; i < wm_adsp_fw[buf->dsp->fw].caps->num_regions; ++i) 1938 if (buf->read_index < buf->regions[i].cumulative_size) 1939 break; 1940 1941 if (i == wm_adsp_fw[buf->dsp->fw].caps->num_regions) 1942 return -EINVAL; 1943 1944 mem_type = buf->regions[i].mem_type; 1945 adsp_addr = buf->regions[i].base_addr + 1946 (buf->read_index - buf->regions[i].offset); 1947 1948 max_read = wm_adsp_compr_frag_words(compr); 1949 nwords = buf->regions[i].cumulative_size - buf->read_index; 1950 1951 if (nwords > target) 1952 nwords = target; 1953 if (nwords > buf->avail) 1954 nwords = buf->avail; 1955 if (nwords > max_read) 1956 nwords = max_read; 1957 if (!nwords) 1958 return 0; 1959 1960 /* Read data from DSP */ 1961 ret = cs_dsp_read_raw_data_block(&buf->dsp->cs_dsp, mem_type, adsp_addr, 1962 nwords, (__be32 *)compr->raw_buf); 1963 if (ret < 0) 1964 return ret; 1965 1966 cs_dsp_remove_padding(compr->raw_buf, nwords); 1967 1968 /* update read index to account for words read */ 1969 buf->read_index += nwords; 1970 if (buf->read_index == wm_adsp_buffer_size(buf)) 1971 buf->read_index = 0; 1972 1973 ret = wm_adsp_buffer_write(buf, HOST_BUFFER_FIELD(next_read_index), 1974 buf->read_index); 1975 if (ret < 0) 1976 return ret; 1977 1978 /* update avail to account for words read */ 1979 buf->avail -= nwords; 1980 1981 return nwords; 1982} 1983 1984static int wm_adsp_compr_read(struct wm_adsp_compr *compr, 1985 char __user *buf, size_t count) 1986{ 1987 struct wm_adsp *dsp = compr->dsp; 1988 int ntotal = 0; 1989 int nwords, nbytes; 1990 1991 compr_dbg(compr, "Requested read of %zu bytes\n", count); 1992 1993 if (dsp->fatal_error || !compr->buf || compr->buf->error) { 1994 snd_compr_stop_error(compr->stream, SNDRV_PCM_STATE_XRUN); 1995 return -EIO; 1996 } 1997 1998 count /= CS_DSP_DATA_WORD_SIZE; 1999 2000 do { 2001 nwords = wm_adsp_buffer_capture_block(compr, count); 2002 if (nwords < 0) { 2003 compr_err(compr, "Failed to capture block: %d\n", 2004 nwords); 2005 return nwords; 2006 } 2007 2008 nbytes = nwords * CS_DSP_DATA_WORD_SIZE; 2009 2010 compr_dbg(compr, "Read %d bytes\n", nbytes); 2011 2012 if (copy_to_user(buf + ntotal, compr->raw_buf, nbytes)) { 2013 compr_err(compr, "Failed to copy data to user: %d, %d\n", 2014 ntotal, nbytes); 2015 return -EFAULT; 2016 } 2017 2018 count -= nwords; 2019 ntotal += nbytes; 2020 } while (nwords > 0 && count > 0); 2021 2022 compr->copied_total += ntotal; 2023 2024 return ntotal; 2025} 2026 2027int wm_adsp_compr_copy(struct snd_soc_component *component, 2028 struct snd_compr_stream *stream, char __user *buf, 2029 size_t count) 2030{ 2031 struct wm_adsp_compr *compr = stream->runtime->private_data; 2032 struct wm_adsp *dsp = compr->dsp; 2033 int ret; 2034 2035 mutex_lock(&dsp->cs_dsp.pwr_lock); 2036 2037 if (stream->direction == SND_COMPRESS_CAPTURE) 2038 ret = wm_adsp_compr_read(compr, buf, count); 2039 else 2040 ret = -ENOTSUPP; 2041 2042 mutex_unlock(&dsp->cs_dsp.pwr_lock); 2043 2044 return ret; 2045} 2046EXPORT_SYMBOL_GPL(wm_adsp_compr_copy); 2047 2048static void wm_adsp_fatal_error(struct cs_dsp *cs_dsp) 2049{ 2050 struct wm_adsp *dsp = container_of(cs_dsp, struct wm_adsp, cs_dsp); 2051 struct wm_adsp_compr *compr; 2052 2053 dsp->fatal_error = true; 2054 2055 list_for_each_entry(compr, &dsp->compr_list, list) { 2056 if (compr->stream) 2057 snd_compr_fragment_elapsed(compr->stream); 2058 } 2059} 2060 2061irqreturn_t wm_adsp2_bus_error(int irq, void *data) 2062{ 2063 struct wm_adsp *dsp = (struct wm_adsp *)data; 2064 2065 cs_dsp_adsp2_bus_error(&dsp->cs_dsp); 2066 2067 return IRQ_HANDLED; 2068} 2069EXPORT_SYMBOL_GPL(wm_adsp2_bus_error); 2070 2071irqreturn_t wm_halo_bus_error(int irq, void *data) 2072{ 2073 struct wm_adsp *dsp = (struct wm_adsp *)data; 2074 2075 cs_dsp_halo_bus_error(&dsp->cs_dsp); 2076 2077 return IRQ_HANDLED; 2078} 2079EXPORT_SYMBOL_GPL(wm_halo_bus_error); 2080 2081irqreturn_t wm_halo_wdt_expire(int irq, void *data) 2082{ 2083 struct wm_adsp *dsp = data; 2084 2085 cs_dsp_halo_wdt_expire(&dsp->cs_dsp); 2086 2087 return IRQ_HANDLED; 2088} 2089EXPORT_SYMBOL_GPL(wm_halo_wdt_expire); 2090 2091static const struct cs_dsp_client_ops wm_adsp1_client_ops = { 2092 .control_add = wm_adsp_control_add, 2093 .control_remove = wm_adsp_control_remove, 2094}; 2095 2096static const struct cs_dsp_client_ops wm_adsp2_client_ops = { 2097 .control_add = wm_adsp_control_add, 2098 .control_remove = wm_adsp_control_remove, 2099 .pre_run = wm_adsp_pre_run, 2100 .post_run = wm_adsp_event_post_run, 2101 .post_stop = wm_adsp_event_post_stop, 2102 .watchdog_expired = wm_adsp_fatal_error, 2103}; 2104 2105MODULE_LICENSE("GPL v2"); 2106MODULE_IMPORT_NS(FW_CS_DSP); 2107