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