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