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/pm_runtime.h> 19 #include <linux/regmap.h> 20 #include <linux/regulator/consumer.h> 21 #include <linux/slab.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 int ret = 0; 423 424 mutex_lock(&cs_ctl->dsp->pwr_lock); 425 426 if (copy_from_user(cs_ctl->cache, bytes, size)) 427 ret = -EFAULT; 428 else 429 ret = cs_dsp_coeff_write_ctrl(cs_ctl, 0, cs_ctl->cache, size); 430 431 mutex_unlock(&cs_ctl->dsp->pwr_lock); 432 433 return ret; 434 } 435 436 static int wm_coeff_put_acked(struct snd_kcontrol *kctl, 437 struct snd_ctl_elem_value *ucontrol) 438 { 439 struct soc_bytes_ext *bytes_ext = 440 (struct soc_bytes_ext *)kctl->private_value; 441 struct wm_coeff_ctl *ctl = bytes_ext_to_ctl(bytes_ext); 442 struct cs_dsp_coeff_ctl *cs_ctl = ctl->cs_ctl; 443 unsigned int val = ucontrol->value.integer.value[0]; 444 int ret; 445 446 if (val == 0) 447 return 0; /* 0 means no event */ 448 449 mutex_lock(&cs_ctl->dsp->pwr_lock); 450 451 if (cs_ctl->enabled) 452 ret = cs_dsp_coeff_write_acked_control(cs_ctl, val); 453 else 454 ret = -EPERM; 455 456 mutex_unlock(&cs_ctl->dsp->pwr_lock); 457 458 return ret; 459 } 460 461 static int wm_coeff_get(struct snd_kcontrol *kctl, 462 struct snd_ctl_elem_value *ucontrol) 463 { 464 struct soc_bytes_ext *bytes_ext = 465 (struct soc_bytes_ext *)kctl->private_value; 466 struct wm_coeff_ctl *ctl = bytes_ext_to_ctl(bytes_ext); 467 struct cs_dsp_coeff_ctl *cs_ctl = ctl->cs_ctl; 468 char *p = ucontrol->value.bytes.data; 469 int ret; 470 471 mutex_lock(&cs_ctl->dsp->pwr_lock); 472 ret = cs_dsp_coeff_read_ctrl(cs_ctl, 0, p, cs_ctl->len); 473 mutex_unlock(&cs_ctl->dsp->pwr_lock); 474 475 return ret; 476 } 477 478 static int wm_coeff_tlv_get(struct snd_kcontrol *kctl, 479 unsigned int __user *bytes, unsigned int size) 480 { 481 struct soc_bytes_ext *bytes_ext = 482 (struct soc_bytes_ext *)kctl->private_value; 483 struct wm_coeff_ctl *ctl = bytes_ext_to_ctl(bytes_ext); 484 struct cs_dsp_coeff_ctl *cs_ctl = ctl->cs_ctl; 485 int ret = 0; 486 487 mutex_lock(&cs_ctl->dsp->pwr_lock); 488 489 ret = cs_dsp_coeff_read_ctrl(cs_ctl, 0, cs_ctl->cache, size); 490 491 if (!ret && copy_to_user(bytes, cs_ctl->cache, size)) 492 ret = -EFAULT; 493 494 mutex_unlock(&cs_ctl->dsp->pwr_lock); 495 496 return ret; 497 } 498 499 static int wm_coeff_get_acked(struct snd_kcontrol *kcontrol, 500 struct snd_ctl_elem_value *ucontrol) 501 { 502 /* 503 * Although it's not useful to read an acked control, we must satisfy 504 * user-side assumptions that all controls are readable and that a 505 * write of the same value should be filtered out (it's valid to send 506 * the same event number again to the firmware). We therefore return 0, 507 * meaning "no event" so valid event numbers will always be a change 508 */ 509 ucontrol->value.integer.value[0] = 0; 510 511 return 0; 512 } 513 514 static unsigned int wmfw_convert_flags(unsigned int in, unsigned int len) 515 { 516 unsigned int out, rd, wr, vol; 517 518 if (len > ADSP_MAX_STD_CTRL_SIZE) { 519 rd = SNDRV_CTL_ELEM_ACCESS_TLV_READ; 520 wr = SNDRV_CTL_ELEM_ACCESS_TLV_WRITE; 521 vol = SNDRV_CTL_ELEM_ACCESS_VOLATILE; 522 523 out = SNDRV_CTL_ELEM_ACCESS_TLV_CALLBACK; 524 } else { 525 rd = SNDRV_CTL_ELEM_ACCESS_READ; 526 wr = SNDRV_CTL_ELEM_ACCESS_WRITE; 527 vol = SNDRV_CTL_ELEM_ACCESS_VOLATILE; 528 529 out = 0; 530 } 531 532 if (in) { 533 out |= rd; 534 if (in & WMFW_CTL_FLAG_WRITEABLE) 535 out |= wr; 536 if (in & WMFW_CTL_FLAG_VOLATILE) 537 out |= vol; 538 } else { 539 out |= rd | wr | vol; 540 } 541 542 return out; 543 } 544 545 static void wm_adsp_ctl_work(struct work_struct *work) 546 { 547 struct wm_coeff_ctl *ctl = container_of(work, 548 struct wm_coeff_ctl, 549 work); 550 struct cs_dsp_coeff_ctl *cs_ctl = ctl->cs_ctl; 551 struct wm_adsp *dsp = container_of(cs_ctl->dsp, 552 struct wm_adsp, 553 cs_dsp); 554 struct snd_kcontrol_new *kcontrol; 555 556 kcontrol = kzalloc(sizeof(*kcontrol), GFP_KERNEL); 557 if (!kcontrol) 558 return; 559 560 kcontrol->name = ctl->name; 561 kcontrol->info = wm_coeff_info; 562 kcontrol->iface = SNDRV_CTL_ELEM_IFACE_MIXER; 563 kcontrol->tlv.c = snd_soc_bytes_tlv_callback; 564 kcontrol->private_value = (unsigned long)&ctl->bytes_ext; 565 kcontrol->access = wmfw_convert_flags(cs_ctl->flags, cs_ctl->len); 566 567 switch (cs_ctl->type) { 568 case WMFW_CTL_TYPE_ACKED: 569 kcontrol->get = wm_coeff_get_acked; 570 kcontrol->put = wm_coeff_put_acked; 571 break; 572 default: 573 if (kcontrol->access & SNDRV_CTL_ELEM_ACCESS_TLV_CALLBACK) { 574 ctl->bytes_ext.max = cs_ctl->len; 575 ctl->bytes_ext.get = wm_coeff_tlv_get; 576 ctl->bytes_ext.put = wm_coeff_tlv_put; 577 } else { 578 kcontrol->get = wm_coeff_get; 579 kcontrol->put = wm_coeff_put; 580 } 581 break; 582 } 583 584 snd_soc_add_component_controls(dsp->component, kcontrol, 1); 585 586 kfree(kcontrol); 587 } 588 589 static int wm_adsp_control_add(struct cs_dsp_coeff_ctl *cs_ctl) 590 { 591 struct wm_adsp *dsp = container_of(cs_ctl->dsp, struct wm_adsp, cs_dsp); 592 struct cs_dsp *cs_dsp = &dsp->cs_dsp; 593 struct wm_coeff_ctl *ctl; 594 char name[SNDRV_CTL_ELEM_ID_NAME_MAXLEN]; 595 const char *region_name; 596 int ret; 597 598 if (cs_ctl->flags & WMFW_CTL_FLAG_SYS) 599 return 0; 600 601 region_name = cs_dsp_mem_region_name(cs_ctl->alg_region.type); 602 if (!region_name) { 603 adsp_err(dsp, "Unknown region type: %d\n", cs_ctl->alg_region.type); 604 return -EINVAL; 605 } 606 607 switch (cs_dsp->fw_ver) { 608 case 0: 609 case 1: 610 ret = scnprintf(name, SNDRV_CTL_ELEM_ID_NAME_MAXLEN, 611 "%s %s %x", cs_dsp->name, region_name, 612 cs_ctl->alg_region.alg); 613 break; 614 case 2: 615 ret = scnprintf(name, SNDRV_CTL_ELEM_ID_NAME_MAXLEN, 616 "%s%c %.12s %x", cs_dsp->name, *region_name, 617 wm_adsp_fw_text[dsp->fw], cs_ctl->alg_region.alg); 618 break; 619 default: 620 ret = scnprintf(name, SNDRV_CTL_ELEM_ID_NAME_MAXLEN, 621 "%s %.12s %x", cs_dsp->name, 622 wm_adsp_fw_text[dsp->fw], cs_ctl->alg_region.alg); 623 break; 624 } 625 626 if (cs_ctl->subname) { 627 int avail = SNDRV_CTL_ELEM_ID_NAME_MAXLEN - ret - 2; 628 int skip = 0; 629 630 if (dsp->component->name_prefix) 631 avail -= strlen(dsp->component->name_prefix) + 1; 632 633 /* Truncate the subname from the start if it is too long */ 634 if (cs_ctl->subname_len > avail) 635 skip = cs_ctl->subname_len - avail; 636 637 snprintf(name + ret, SNDRV_CTL_ELEM_ID_NAME_MAXLEN - ret, 638 " %.*s", cs_ctl->subname_len - skip, cs_ctl->subname + skip); 639 } 640 641 ctl = kzalloc(sizeof(*ctl), GFP_KERNEL); 642 if (!ctl) 643 return -ENOMEM; 644 ctl->cs_ctl = cs_ctl; 645 646 ctl->name = kmemdup(name, strlen(name) + 1, GFP_KERNEL); 647 if (!ctl->name) { 648 ret = -ENOMEM; 649 goto err_ctl; 650 } 651 652 cs_ctl->priv = ctl; 653 654 INIT_WORK(&ctl->work, wm_adsp_ctl_work); 655 schedule_work(&ctl->work); 656 657 return 0; 658 659 err_ctl: 660 kfree(ctl); 661 662 return ret; 663 } 664 665 static void wm_adsp_control_remove(struct cs_dsp_coeff_ctl *cs_ctl) 666 { 667 struct wm_coeff_ctl *ctl = cs_ctl->priv; 668 669 cancel_work_sync(&ctl->work); 670 671 kfree(ctl->name); 672 kfree(ctl); 673 } 674 675 int wm_adsp_write_ctl(struct wm_adsp *dsp, const char *name, int type, 676 unsigned int alg, void *buf, size_t len) 677 { 678 struct cs_dsp_coeff_ctl *cs_ctl; 679 struct wm_coeff_ctl *ctl; 680 struct snd_kcontrol *kcontrol; 681 char ctl_name[SNDRV_CTL_ELEM_ID_NAME_MAXLEN]; 682 int ret; 683 684 cs_ctl = cs_dsp_get_ctl(&dsp->cs_dsp, name, type, alg); 685 if (!cs_ctl) 686 return -EINVAL; 687 688 ctl = cs_ctl->priv; 689 690 if (len > cs_ctl->len) 691 return -EINVAL; 692 693 ret = cs_dsp_coeff_write_ctrl(cs_ctl, 0, buf, len); 694 if (ret) 695 return ret; 696 697 if (cs_ctl->flags & WMFW_CTL_FLAG_SYS) 698 return 0; 699 700 if (dsp->component->name_prefix) 701 snprintf(ctl_name, SNDRV_CTL_ELEM_ID_NAME_MAXLEN, "%s %s", 702 dsp->component->name_prefix, ctl->name); 703 else 704 snprintf(ctl_name, SNDRV_CTL_ELEM_ID_NAME_MAXLEN, "%s", 705 ctl->name); 706 707 kcontrol = snd_soc_card_get_kcontrol(dsp->component->card, ctl_name); 708 if (!kcontrol) { 709 adsp_err(dsp, "Can't find kcontrol %s\n", ctl_name); 710 return -EINVAL; 711 } 712 713 snd_ctl_notify(dsp->component->card->snd_card, 714 SNDRV_CTL_EVENT_MASK_VALUE, &kcontrol->id); 715 716 return 0; 717 } 718 EXPORT_SYMBOL_GPL(wm_adsp_write_ctl); 719 720 int wm_adsp_read_ctl(struct wm_adsp *dsp, const char *name, int type, 721 unsigned int alg, void *buf, size_t len) 722 { 723 struct cs_dsp_coeff_ctl *cs_ctl; 724 725 cs_ctl = cs_dsp_get_ctl(&dsp->cs_dsp, name, type, alg); 726 if (!cs_ctl) 727 return -EINVAL; 728 729 if (len > cs_ctl->len) 730 return -EINVAL; 731 732 return cs_dsp_coeff_read_ctrl(cs_ctl, 0, buf, len); 733 } 734 EXPORT_SYMBOL_GPL(wm_adsp_read_ctl); 735 736 static void wm_adsp_release_firmware_files(struct wm_adsp *dsp, 737 const struct firmware *wmfw_firmware, 738 char *wmfw_filename, 739 const struct firmware *coeff_firmware, 740 char *coeff_filename) 741 { 742 if (wmfw_firmware) 743 release_firmware(wmfw_firmware); 744 kfree(wmfw_filename); 745 746 if (coeff_firmware) 747 release_firmware(coeff_firmware); 748 kfree(coeff_filename); 749 } 750 751 static int wm_adsp_request_firmware_file(struct wm_adsp *dsp, 752 const struct firmware **firmware, char **filename, 753 const char *dir, const char *system_name, 754 const char *asoc_component_prefix, 755 const char *filetype) 756 { 757 struct cs_dsp *cs_dsp = &dsp->cs_dsp; 758 char *s, c; 759 int ret = 0; 760 761 if (system_name && asoc_component_prefix) 762 *filename = kasprintf(GFP_KERNEL, "%s%s-%s-%s-%s-%s.%s", dir, dsp->part, 763 dsp->fwf_name, wm_adsp_fw[dsp->fw].file, system_name, 764 asoc_component_prefix, filetype); 765 else if (system_name) 766 *filename = kasprintf(GFP_KERNEL, "%s%s-%s-%s-%s.%s", dir, dsp->part, 767 dsp->fwf_name, wm_adsp_fw[dsp->fw].file, system_name, 768 filetype); 769 else 770 *filename = kasprintf(GFP_KERNEL, "%s%s-%s-%s.%s", dir, dsp->part, dsp->fwf_name, 771 wm_adsp_fw[dsp->fw].file, filetype); 772 773 if (*filename == NULL) 774 return -ENOMEM; 775 776 /* 777 * Make sure that filename is lower-case and any non alpha-numeric 778 * characters except full stop and forward slash are replaced with 779 * hyphens. 780 */ 781 s = *filename; 782 while (*s) { 783 c = *s; 784 if (isalnum(c)) 785 *s = tolower(c); 786 else if ((c != '.') && (c != '/')) 787 *s = '-'; 788 s++; 789 } 790 791 ret = firmware_request_nowarn(firmware, *filename, cs_dsp->dev); 792 if (ret != 0) { 793 adsp_dbg(dsp, "Failed to request '%s'\n", *filename); 794 kfree(*filename); 795 *filename = NULL; 796 } 797 798 return ret; 799 } 800 801 static const char *cirrus_dir = "cirrus/"; 802 static int wm_adsp_request_firmware_files(struct wm_adsp *dsp, 803 const struct firmware **wmfw_firmware, 804 char **wmfw_filename, 805 const struct firmware **coeff_firmware, 806 char **coeff_filename) 807 { 808 const char *system_name = dsp->system_name; 809 const char *asoc_component_prefix = dsp->component->name_prefix; 810 int ret = 0; 811 812 if (system_name && asoc_component_prefix) { 813 if (!wm_adsp_request_firmware_file(dsp, wmfw_firmware, wmfw_filename, 814 cirrus_dir, system_name, 815 asoc_component_prefix, "wmfw")) { 816 adsp_dbg(dsp, "Found '%s'\n", *wmfw_filename); 817 wm_adsp_request_firmware_file(dsp, coeff_firmware, coeff_filename, 818 cirrus_dir, system_name, 819 asoc_component_prefix, "bin"); 820 return 0; 821 } 822 } 823 824 if (system_name) { 825 if (!wm_adsp_request_firmware_file(dsp, wmfw_firmware, wmfw_filename, 826 cirrus_dir, system_name, 827 NULL, "wmfw")) { 828 adsp_dbg(dsp, "Found '%s'\n", *wmfw_filename); 829 if (asoc_component_prefix) 830 wm_adsp_request_firmware_file(dsp, coeff_firmware, coeff_filename, 831 cirrus_dir, system_name, 832 asoc_component_prefix, "bin"); 833 834 if (!*coeff_firmware) 835 wm_adsp_request_firmware_file(dsp, coeff_firmware, coeff_filename, 836 cirrus_dir, system_name, 837 NULL, "bin"); 838 return 0; 839 } 840 } 841 842 if (!wm_adsp_request_firmware_file(dsp, wmfw_firmware, wmfw_filename, 843 "", NULL, NULL, "wmfw")) { 844 adsp_dbg(dsp, "Found '%s'\n", *wmfw_filename); 845 wm_adsp_request_firmware_file(dsp, coeff_firmware, coeff_filename, 846 "", NULL, NULL, "bin"); 847 return 0; 848 } 849 850 ret = wm_adsp_request_firmware_file(dsp, wmfw_firmware, wmfw_filename, 851 cirrus_dir, NULL, NULL, "wmfw"); 852 if (!ret) { 853 adsp_dbg(dsp, "Found '%s'\n", *wmfw_filename); 854 wm_adsp_request_firmware_file(dsp, coeff_firmware, coeff_filename, 855 cirrus_dir, NULL, NULL, "bin"); 856 return 0; 857 } 858 859 adsp_err(dsp, "Failed to request firmware <%s>%s-%s-%s<-%s<%s>>.wmfw\n", 860 cirrus_dir, dsp->part, dsp->fwf_name, wm_adsp_fw[dsp->fw].file, 861 system_name, asoc_component_prefix); 862 863 return -ENOENT; 864 } 865 866 static int wm_adsp_common_init(struct wm_adsp *dsp) 867 { 868 char *p; 869 870 INIT_LIST_HEAD(&dsp->compr_list); 871 INIT_LIST_HEAD(&dsp->buffer_list); 872 873 if (!dsp->fwf_name) { 874 p = devm_kstrdup(dsp->cs_dsp.dev, dsp->cs_dsp.name, GFP_KERNEL); 875 if (!p) 876 return -ENOMEM; 877 878 dsp->fwf_name = p; 879 for (; *p != 0; ++p) 880 *p = tolower(*p); 881 } 882 883 return 0; 884 } 885 886 int wm_adsp1_init(struct wm_adsp *dsp) 887 { 888 int ret; 889 890 dsp->cs_dsp.client_ops = &wm_adsp1_client_ops; 891 892 ret = cs_dsp_adsp1_init(&dsp->cs_dsp); 893 if (ret) 894 return ret; 895 896 return wm_adsp_common_init(dsp); 897 } 898 EXPORT_SYMBOL_GPL(wm_adsp1_init); 899 900 int wm_adsp1_event(struct snd_soc_dapm_widget *w, 901 struct snd_kcontrol *kcontrol, 902 int event) 903 { 904 struct snd_soc_component *component = snd_soc_dapm_to_component(w->dapm); 905 struct wm_adsp *dsps = snd_soc_component_get_drvdata(component); 906 struct wm_adsp *dsp = &dsps[w->shift]; 907 int ret = 0; 908 char *wmfw_filename = NULL; 909 const struct firmware *wmfw_firmware = NULL; 910 char *coeff_filename = NULL; 911 const struct firmware *coeff_firmware = NULL; 912 913 dsp->component = component; 914 915 switch (event) { 916 case SND_SOC_DAPM_POST_PMU: 917 ret = wm_adsp_request_firmware_files(dsp, 918 &wmfw_firmware, &wmfw_filename, 919 &coeff_firmware, &coeff_filename); 920 if (ret) 921 break; 922 923 ret = cs_dsp_adsp1_power_up(&dsp->cs_dsp, 924 wmfw_firmware, wmfw_filename, 925 coeff_firmware, coeff_filename, 926 wm_adsp_fw_text[dsp->fw]); 927 928 wm_adsp_release_firmware_files(dsp, 929 wmfw_firmware, wmfw_filename, 930 coeff_firmware, coeff_filename); 931 break; 932 case SND_SOC_DAPM_PRE_PMD: 933 cs_dsp_adsp1_power_down(&dsp->cs_dsp); 934 break; 935 default: 936 break; 937 } 938 939 return ret; 940 } 941 EXPORT_SYMBOL_GPL(wm_adsp1_event); 942 943 int wm_adsp2_set_dspclk(struct snd_soc_dapm_widget *w, unsigned int freq) 944 { 945 struct snd_soc_component *component = snd_soc_dapm_to_component(w->dapm); 946 struct wm_adsp *dsps = snd_soc_component_get_drvdata(component); 947 struct wm_adsp *dsp = &dsps[w->shift]; 948 949 return cs_dsp_set_dspclk(&dsp->cs_dsp, freq); 950 } 951 EXPORT_SYMBOL_GPL(wm_adsp2_set_dspclk); 952 953 int wm_adsp2_preloader_get(struct snd_kcontrol *kcontrol, 954 struct snd_ctl_elem_value *ucontrol) 955 { 956 struct snd_soc_component *component = snd_soc_kcontrol_component(kcontrol); 957 struct wm_adsp *dsps = snd_soc_component_get_drvdata(component); 958 struct soc_mixer_control *mc = 959 (struct soc_mixer_control *)kcontrol->private_value; 960 struct wm_adsp *dsp = &dsps[mc->shift - 1]; 961 962 ucontrol->value.integer.value[0] = dsp->preloaded; 963 964 return 0; 965 } 966 EXPORT_SYMBOL_GPL(wm_adsp2_preloader_get); 967 968 int wm_adsp2_preloader_put(struct snd_kcontrol *kcontrol, 969 struct snd_ctl_elem_value *ucontrol) 970 { 971 struct snd_soc_component *component = snd_soc_kcontrol_component(kcontrol); 972 struct wm_adsp *dsps = snd_soc_component_get_drvdata(component); 973 struct snd_soc_dapm_context *dapm = snd_soc_component_get_dapm(component); 974 struct soc_mixer_control *mc = 975 (struct soc_mixer_control *)kcontrol->private_value; 976 struct wm_adsp *dsp = &dsps[mc->shift - 1]; 977 char preload[32]; 978 979 if (dsp->preloaded == ucontrol->value.integer.value[0]) 980 return 0; 981 982 snprintf(preload, ARRAY_SIZE(preload), "%s Preload", dsp->cs_dsp.name); 983 984 if (ucontrol->value.integer.value[0] || dsp->toggle_preload) 985 snd_soc_component_force_enable_pin(component, preload); 986 else 987 snd_soc_component_disable_pin(component, preload); 988 989 snd_soc_dapm_sync(dapm); 990 991 flush_work(&dsp->boot_work); 992 993 dsp->preloaded = ucontrol->value.integer.value[0]; 994 995 if (dsp->toggle_preload) { 996 snd_soc_component_disable_pin(component, preload); 997 snd_soc_dapm_sync(dapm); 998 } 999 1000 return 1; 1001 } 1002 EXPORT_SYMBOL_GPL(wm_adsp2_preloader_put); 1003 1004 static void wm_adsp_boot_work(struct work_struct *work) 1005 { 1006 struct wm_adsp *dsp = container_of(work, 1007 struct wm_adsp, 1008 boot_work); 1009 int ret = 0; 1010 char *wmfw_filename = NULL; 1011 const struct firmware *wmfw_firmware = NULL; 1012 char *coeff_filename = NULL; 1013 const struct firmware *coeff_firmware = NULL; 1014 1015 ret = wm_adsp_request_firmware_files(dsp, 1016 &wmfw_firmware, &wmfw_filename, 1017 &coeff_firmware, &coeff_filename); 1018 if (ret) 1019 return; 1020 1021 cs_dsp_power_up(&dsp->cs_dsp, 1022 wmfw_firmware, wmfw_filename, 1023 coeff_firmware, coeff_filename, 1024 wm_adsp_fw_text[dsp->fw]); 1025 1026 wm_adsp_release_firmware_files(dsp, 1027 wmfw_firmware, wmfw_filename, 1028 coeff_firmware, coeff_filename); 1029 } 1030 1031 int wm_adsp_early_event(struct snd_soc_dapm_widget *w, 1032 struct snd_kcontrol *kcontrol, int event) 1033 { 1034 struct snd_soc_component *component = snd_soc_dapm_to_component(w->dapm); 1035 struct wm_adsp *dsps = snd_soc_component_get_drvdata(component); 1036 struct wm_adsp *dsp = &dsps[w->shift]; 1037 1038 switch (event) { 1039 case SND_SOC_DAPM_PRE_PMU: 1040 queue_work(system_unbound_wq, &dsp->boot_work); 1041 break; 1042 case SND_SOC_DAPM_PRE_PMD: 1043 cs_dsp_power_down(&dsp->cs_dsp); 1044 break; 1045 default: 1046 break; 1047 } 1048 1049 return 0; 1050 } 1051 EXPORT_SYMBOL_GPL(wm_adsp_early_event); 1052 1053 static int wm_adsp_event_post_run(struct cs_dsp *cs_dsp) 1054 { 1055 struct wm_adsp *dsp = container_of(cs_dsp, struct wm_adsp, cs_dsp); 1056 1057 if (wm_adsp_fw[dsp->fw].num_caps != 0) 1058 return wm_adsp_buffer_init(dsp); 1059 1060 return 0; 1061 } 1062 1063 static void wm_adsp_event_post_stop(struct cs_dsp *cs_dsp) 1064 { 1065 struct wm_adsp *dsp = container_of(cs_dsp, struct wm_adsp, cs_dsp); 1066 1067 if (wm_adsp_fw[dsp->fw].num_caps != 0) 1068 wm_adsp_buffer_free(dsp); 1069 1070 dsp->fatal_error = false; 1071 } 1072 1073 int wm_adsp_event(struct snd_soc_dapm_widget *w, 1074 struct snd_kcontrol *kcontrol, int event) 1075 { 1076 struct snd_soc_component *component = snd_soc_dapm_to_component(w->dapm); 1077 struct wm_adsp *dsps = snd_soc_component_get_drvdata(component); 1078 struct wm_adsp *dsp = &dsps[w->shift]; 1079 int ret = 0; 1080 1081 switch (event) { 1082 case SND_SOC_DAPM_POST_PMU: 1083 flush_work(&dsp->boot_work); 1084 ret = cs_dsp_run(&dsp->cs_dsp); 1085 break; 1086 case SND_SOC_DAPM_PRE_PMD: 1087 cs_dsp_stop(&dsp->cs_dsp); 1088 break; 1089 default: 1090 break; 1091 } 1092 1093 return ret; 1094 } 1095 EXPORT_SYMBOL_GPL(wm_adsp_event); 1096 1097 int wm_adsp2_component_probe(struct wm_adsp *dsp, struct snd_soc_component *component) 1098 { 1099 char preload[32]; 1100 1101 snprintf(preload, ARRAY_SIZE(preload), "%s Preload", dsp->cs_dsp.name); 1102 snd_soc_component_disable_pin(component, preload); 1103 1104 cs_dsp_init_debugfs(&dsp->cs_dsp, component->debugfs_root); 1105 1106 dsp->component = component; 1107 1108 return 0; 1109 } 1110 EXPORT_SYMBOL_GPL(wm_adsp2_component_probe); 1111 1112 int wm_adsp2_component_remove(struct wm_adsp *dsp, struct snd_soc_component *component) 1113 { 1114 cs_dsp_cleanup_debugfs(&dsp->cs_dsp); 1115 1116 return 0; 1117 } 1118 EXPORT_SYMBOL_GPL(wm_adsp2_component_remove); 1119 1120 int wm_adsp2_init(struct wm_adsp *dsp) 1121 { 1122 int ret; 1123 1124 INIT_WORK(&dsp->boot_work, wm_adsp_boot_work); 1125 1126 dsp->sys_config_size = sizeof(struct wm_adsp_system_config_xm_hdr); 1127 dsp->cs_dsp.client_ops = &wm_adsp2_client_ops; 1128 1129 ret = cs_dsp_adsp2_init(&dsp->cs_dsp); 1130 if (ret) 1131 return ret; 1132 1133 return wm_adsp_common_init(dsp); 1134 } 1135 EXPORT_SYMBOL_GPL(wm_adsp2_init); 1136 1137 int wm_halo_init(struct wm_adsp *dsp) 1138 { 1139 int ret; 1140 1141 INIT_WORK(&dsp->boot_work, wm_adsp_boot_work); 1142 1143 dsp->sys_config_size = sizeof(struct wm_halo_system_config_xm_hdr); 1144 dsp->cs_dsp.client_ops = &wm_adsp2_client_ops; 1145 1146 ret = cs_dsp_halo_init(&dsp->cs_dsp); 1147 if (ret) 1148 return ret; 1149 1150 return wm_adsp_common_init(dsp); 1151 } 1152 EXPORT_SYMBOL_GPL(wm_halo_init); 1153 1154 void wm_adsp2_remove(struct wm_adsp *dsp) 1155 { 1156 cs_dsp_remove(&dsp->cs_dsp); 1157 } 1158 EXPORT_SYMBOL_GPL(wm_adsp2_remove); 1159 1160 static inline int wm_adsp_compr_attached(struct wm_adsp_compr *compr) 1161 { 1162 return compr->buf != NULL; 1163 } 1164 1165 static int wm_adsp_compr_attach(struct wm_adsp_compr *compr) 1166 { 1167 struct wm_adsp_compr_buf *buf = NULL, *tmp; 1168 1169 if (compr->dsp->fatal_error) 1170 return -EINVAL; 1171 1172 list_for_each_entry(tmp, &compr->dsp->buffer_list, list) { 1173 if (!tmp->name || !strcmp(compr->name, tmp->name)) { 1174 buf = tmp; 1175 break; 1176 } 1177 } 1178 1179 if (!buf) 1180 return -EINVAL; 1181 1182 compr->buf = buf; 1183 buf->compr = compr; 1184 1185 return 0; 1186 } 1187 1188 static void wm_adsp_compr_detach(struct wm_adsp_compr *compr) 1189 { 1190 if (!compr) 1191 return; 1192 1193 /* Wake the poll so it can see buffer is no longer attached */ 1194 if (compr->stream) 1195 snd_compr_fragment_elapsed(compr->stream); 1196 1197 if (wm_adsp_compr_attached(compr)) { 1198 compr->buf->compr = NULL; 1199 compr->buf = NULL; 1200 } 1201 } 1202 1203 int wm_adsp_compr_open(struct wm_adsp *dsp, struct snd_compr_stream *stream) 1204 { 1205 struct wm_adsp_compr *compr, *tmp; 1206 struct snd_soc_pcm_runtime *rtd = stream->private_data; 1207 int ret = 0; 1208 1209 mutex_lock(&dsp->cs_dsp.pwr_lock); 1210 1211 if (wm_adsp_fw[dsp->fw].num_caps == 0) { 1212 adsp_err(dsp, "%s: Firmware does not support compressed API\n", 1213 asoc_rtd_to_codec(rtd, 0)->name); 1214 ret = -ENXIO; 1215 goto out; 1216 } 1217 1218 if (wm_adsp_fw[dsp->fw].compr_direction != stream->direction) { 1219 adsp_err(dsp, "%s: Firmware does not support stream direction\n", 1220 asoc_rtd_to_codec(rtd, 0)->name); 1221 ret = -EINVAL; 1222 goto out; 1223 } 1224 1225 list_for_each_entry(tmp, &dsp->compr_list, list) { 1226 if (!strcmp(tmp->name, asoc_rtd_to_codec(rtd, 0)->name)) { 1227 adsp_err(dsp, "%s: Only a single stream supported per dai\n", 1228 asoc_rtd_to_codec(rtd, 0)->name); 1229 ret = -EBUSY; 1230 goto out; 1231 } 1232 } 1233 1234 compr = kzalloc(sizeof(*compr), GFP_KERNEL); 1235 if (!compr) { 1236 ret = -ENOMEM; 1237 goto out; 1238 } 1239 1240 compr->dsp = dsp; 1241 compr->stream = stream; 1242 compr->name = asoc_rtd_to_codec(rtd, 0)->name; 1243 1244 list_add_tail(&compr->list, &dsp->compr_list); 1245 1246 stream->runtime->private_data = compr; 1247 1248 out: 1249 mutex_unlock(&dsp->cs_dsp.pwr_lock); 1250 1251 return ret; 1252 } 1253 EXPORT_SYMBOL_GPL(wm_adsp_compr_open); 1254 1255 int wm_adsp_compr_free(struct snd_soc_component *component, 1256 struct snd_compr_stream *stream) 1257 { 1258 struct wm_adsp_compr *compr = stream->runtime->private_data; 1259 struct wm_adsp *dsp = compr->dsp; 1260 1261 mutex_lock(&dsp->cs_dsp.pwr_lock); 1262 1263 wm_adsp_compr_detach(compr); 1264 list_del(&compr->list); 1265 1266 kfree(compr->raw_buf); 1267 kfree(compr); 1268 1269 mutex_unlock(&dsp->cs_dsp.pwr_lock); 1270 1271 return 0; 1272 } 1273 EXPORT_SYMBOL_GPL(wm_adsp_compr_free); 1274 1275 static int wm_adsp_compr_check_params(struct snd_compr_stream *stream, 1276 struct snd_compr_params *params) 1277 { 1278 struct wm_adsp_compr *compr = stream->runtime->private_data; 1279 struct wm_adsp *dsp = compr->dsp; 1280 const struct wm_adsp_fw_caps *caps; 1281 const struct snd_codec_desc *desc; 1282 int i, j; 1283 1284 if (params->buffer.fragment_size < WM_ADSP_MIN_FRAGMENT_SIZE || 1285 params->buffer.fragment_size > WM_ADSP_MAX_FRAGMENT_SIZE || 1286 params->buffer.fragments < WM_ADSP_MIN_FRAGMENTS || 1287 params->buffer.fragments > WM_ADSP_MAX_FRAGMENTS || 1288 params->buffer.fragment_size % CS_DSP_DATA_WORD_SIZE) { 1289 compr_err(compr, "Invalid buffer fragsize=%d fragments=%d\n", 1290 params->buffer.fragment_size, 1291 params->buffer.fragments); 1292 1293 return -EINVAL; 1294 } 1295 1296 for (i = 0; i < wm_adsp_fw[dsp->fw].num_caps; i++) { 1297 caps = &wm_adsp_fw[dsp->fw].caps[i]; 1298 desc = &caps->desc; 1299 1300 if (caps->id != params->codec.id) 1301 continue; 1302 1303 if (stream->direction == SND_COMPRESS_PLAYBACK) { 1304 if (desc->max_ch < params->codec.ch_out) 1305 continue; 1306 } else { 1307 if (desc->max_ch < params->codec.ch_in) 1308 continue; 1309 } 1310 1311 if (!(desc->formats & (1 << params->codec.format))) 1312 continue; 1313 1314 for (j = 0; j < desc->num_sample_rates; ++j) 1315 if (desc->sample_rates[j] == params->codec.sample_rate) 1316 return 0; 1317 } 1318 1319 compr_err(compr, "Invalid params id=%u ch=%u,%u rate=%u fmt=%u\n", 1320 params->codec.id, params->codec.ch_in, params->codec.ch_out, 1321 params->codec.sample_rate, params->codec.format); 1322 return -EINVAL; 1323 } 1324 1325 static inline unsigned int wm_adsp_compr_frag_words(struct wm_adsp_compr *compr) 1326 { 1327 return compr->size.fragment_size / CS_DSP_DATA_WORD_SIZE; 1328 } 1329 1330 int wm_adsp_compr_set_params(struct snd_soc_component *component, 1331 struct snd_compr_stream *stream, 1332 struct snd_compr_params *params) 1333 { 1334 struct wm_adsp_compr *compr = stream->runtime->private_data; 1335 unsigned int size; 1336 int ret; 1337 1338 ret = wm_adsp_compr_check_params(stream, params); 1339 if (ret) 1340 return ret; 1341 1342 compr->size = params->buffer; 1343 1344 compr_dbg(compr, "fragment_size=%d fragments=%d\n", 1345 compr->size.fragment_size, compr->size.fragments); 1346 1347 size = wm_adsp_compr_frag_words(compr) * sizeof(*compr->raw_buf); 1348 compr->raw_buf = kmalloc(size, GFP_DMA | GFP_KERNEL); 1349 if (!compr->raw_buf) 1350 return -ENOMEM; 1351 1352 compr->sample_rate = params->codec.sample_rate; 1353 1354 return 0; 1355 } 1356 EXPORT_SYMBOL_GPL(wm_adsp_compr_set_params); 1357 1358 int wm_adsp_compr_get_caps(struct snd_soc_component *component, 1359 struct snd_compr_stream *stream, 1360 struct snd_compr_caps *caps) 1361 { 1362 struct wm_adsp_compr *compr = stream->runtime->private_data; 1363 int fw = compr->dsp->fw; 1364 int i; 1365 1366 if (wm_adsp_fw[fw].caps) { 1367 for (i = 0; i < wm_adsp_fw[fw].num_caps; i++) 1368 caps->codecs[i] = wm_adsp_fw[fw].caps[i].id; 1369 1370 caps->num_codecs = i; 1371 caps->direction = wm_adsp_fw[fw].compr_direction; 1372 1373 caps->min_fragment_size = WM_ADSP_MIN_FRAGMENT_SIZE; 1374 caps->max_fragment_size = WM_ADSP_MAX_FRAGMENT_SIZE; 1375 caps->min_fragments = WM_ADSP_MIN_FRAGMENTS; 1376 caps->max_fragments = WM_ADSP_MAX_FRAGMENTS; 1377 } 1378 1379 return 0; 1380 } 1381 EXPORT_SYMBOL_GPL(wm_adsp_compr_get_caps); 1382 1383 static inline int wm_adsp_buffer_read(struct wm_adsp_compr_buf *buf, 1384 unsigned int field_offset, u32 *data) 1385 { 1386 return cs_dsp_read_data_word(&buf->dsp->cs_dsp, buf->host_buf_mem_type, 1387 buf->host_buf_ptr + field_offset, data); 1388 } 1389 1390 static inline int wm_adsp_buffer_write(struct wm_adsp_compr_buf *buf, 1391 unsigned int field_offset, u32 data) 1392 { 1393 return cs_dsp_write_data_word(&buf->dsp->cs_dsp, buf->host_buf_mem_type, 1394 buf->host_buf_ptr + field_offset, 1395 data); 1396 } 1397 1398 static int wm_adsp_buffer_populate(struct wm_adsp_compr_buf *buf) 1399 { 1400 const struct wm_adsp_fw_caps *caps = wm_adsp_fw[buf->dsp->fw].caps; 1401 struct wm_adsp_buffer_region *region; 1402 u32 offset = 0; 1403 int i, ret; 1404 1405 buf->regions = kcalloc(caps->num_regions, sizeof(*buf->regions), 1406 GFP_KERNEL); 1407 if (!buf->regions) 1408 return -ENOMEM; 1409 1410 for (i = 0; i < caps->num_regions; ++i) { 1411 region = &buf->regions[i]; 1412 1413 region->offset = offset; 1414 region->mem_type = caps->region_defs[i].mem_type; 1415 1416 ret = wm_adsp_buffer_read(buf, caps->region_defs[i].base_offset, 1417 ®ion->base_addr); 1418 if (ret < 0) 1419 return ret; 1420 1421 ret = wm_adsp_buffer_read(buf, caps->region_defs[i].size_offset, 1422 &offset); 1423 if (ret < 0) 1424 return ret; 1425 1426 region->cumulative_size = offset; 1427 1428 compr_dbg(buf, 1429 "region=%d type=%d base=%08x off=%08x size=%08x\n", 1430 i, region->mem_type, region->base_addr, 1431 region->offset, region->cumulative_size); 1432 } 1433 1434 return 0; 1435 } 1436 1437 static void wm_adsp_buffer_clear(struct wm_adsp_compr_buf *buf) 1438 { 1439 buf->irq_count = 0xFFFFFFFF; 1440 buf->read_index = -1; 1441 buf->avail = 0; 1442 } 1443 1444 static struct wm_adsp_compr_buf *wm_adsp_buffer_alloc(struct wm_adsp *dsp) 1445 { 1446 struct wm_adsp_compr_buf *buf; 1447 1448 buf = kzalloc(sizeof(*buf), GFP_KERNEL); 1449 if (!buf) 1450 return NULL; 1451 1452 buf->dsp = dsp; 1453 1454 wm_adsp_buffer_clear(buf); 1455 1456 return buf; 1457 } 1458 1459 static int wm_adsp_buffer_parse_legacy(struct wm_adsp *dsp) 1460 { 1461 struct cs_dsp_alg_region *alg_region; 1462 struct wm_adsp_compr_buf *buf; 1463 u32 xmalg, addr, magic; 1464 int i, ret; 1465 1466 alg_region = cs_dsp_find_alg_region(&dsp->cs_dsp, WMFW_ADSP2_XM, dsp->cs_dsp.fw_id); 1467 if (!alg_region) { 1468 adsp_err(dsp, "No algorithm region found\n"); 1469 return -EINVAL; 1470 } 1471 1472 xmalg = dsp->sys_config_size / sizeof(__be32); 1473 1474 addr = alg_region->base + xmalg + ALG_XM_FIELD(magic); 1475 ret = cs_dsp_read_data_word(&dsp->cs_dsp, WMFW_ADSP2_XM, addr, &magic); 1476 if (ret < 0) 1477 return ret; 1478 1479 if (magic != WM_ADSP_ALG_XM_STRUCT_MAGIC) 1480 return -ENODEV; 1481 1482 buf = wm_adsp_buffer_alloc(dsp); 1483 if (!buf) 1484 return -ENOMEM; 1485 1486 addr = alg_region->base + xmalg + ALG_XM_FIELD(host_buf_ptr); 1487 for (i = 0; i < 5; ++i) { 1488 ret = cs_dsp_read_data_word(&dsp->cs_dsp, WMFW_ADSP2_XM, addr, 1489 &buf->host_buf_ptr); 1490 if (ret < 0) 1491 goto err; 1492 1493 if (buf->host_buf_ptr) 1494 break; 1495 1496 usleep_range(1000, 2000); 1497 } 1498 1499 if (!buf->host_buf_ptr) { 1500 ret = -EIO; 1501 goto err; 1502 } 1503 1504 buf->host_buf_mem_type = WMFW_ADSP2_XM; 1505 1506 ret = wm_adsp_buffer_populate(buf); 1507 if (ret < 0) 1508 goto err; 1509 1510 list_add_tail(&buf->list, &dsp->buffer_list); 1511 1512 compr_dbg(buf, "legacy host_buf_ptr=%x\n", buf->host_buf_ptr); 1513 1514 return 0; 1515 1516 err: 1517 kfree(buf); 1518 1519 return ret; 1520 } 1521 1522 static int wm_adsp_buffer_parse_coeff(struct cs_dsp_coeff_ctl *cs_ctl) 1523 { 1524 struct wm_adsp_host_buf_coeff_v1 coeff_v1; 1525 struct wm_adsp_compr_buf *buf; 1526 struct wm_adsp *dsp = container_of(cs_ctl->dsp, struct wm_adsp, cs_dsp); 1527 unsigned int version = 0; 1528 int ret, i; 1529 1530 for (i = 0; i < 5; ++i) { 1531 ret = cs_dsp_coeff_read_ctrl(cs_ctl, 0, &coeff_v1, 1532 min(cs_ctl->len, sizeof(coeff_v1))); 1533 if (ret < 0) 1534 return ret; 1535 1536 if (coeff_v1.host_buf_ptr) 1537 break; 1538 1539 usleep_range(1000, 2000); 1540 } 1541 1542 if (!coeff_v1.host_buf_ptr) { 1543 adsp_err(dsp, "Failed to acquire host buffer\n"); 1544 return -EIO; 1545 } 1546 1547 buf = wm_adsp_buffer_alloc(dsp); 1548 if (!buf) 1549 return -ENOMEM; 1550 1551 buf->host_buf_mem_type = cs_ctl->alg_region.type; 1552 buf->host_buf_ptr = be32_to_cpu(coeff_v1.host_buf_ptr); 1553 1554 ret = wm_adsp_buffer_populate(buf); 1555 if (ret < 0) 1556 goto err; 1557 1558 /* 1559 * v0 host_buffer coefficients didn't have versioning, so if the 1560 * control is one word, assume version 0. 1561 */ 1562 if (cs_ctl->len == 4) 1563 goto done; 1564 1565 version = be32_to_cpu(coeff_v1.versions) & HOST_BUF_COEFF_COMPAT_VER_MASK; 1566 version >>= HOST_BUF_COEFF_COMPAT_VER_SHIFT; 1567 1568 if (version > HOST_BUF_COEFF_SUPPORTED_COMPAT_VER) { 1569 adsp_err(dsp, 1570 "Host buffer coeff ver %u > supported version %u\n", 1571 version, HOST_BUF_COEFF_SUPPORTED_COMPAT_VER); 1572 ret = -EINVAL; 1573 goto err; 1574 } 1575 1576 cs_dsp_remove_padding((u32 *)&coeff_v1.name, ARRAY_SIZE(coeff_v1.name)); 1577 1578 buf->name = kasprintf(GFP_KERNEL, "%s-dsp-%s", dsp->part, 1579 (char *)&coeff_v1.name); 1580 1581 done: 1582 list_add_tail(&buf->list, &dsp->buffer_list); 1583 1584 compr_dbg(buf, "host_buf_ptr=%x coeff version %u\n", 1585 buf->host_buf_ptr, version); 1586 1587 return version; 1588 1589 err: 1590 kfree(buf); 1591 1592 return ret; 1593 } 1594 1595 static int wm_adsp_buffer_init(struct wm_adsp *dsp) 1596 { 1597 struct cs_dsp_coeff_ctl *cs_ctl; 1598 int ret; 1599 1600 list_for_each_entry(cs_ctl, &dsp->cs_dsp.ctl_list, list) { 1601 if (cs_ctl->type != WMFW_CTL_TYPE_HOST_BUFFER) 1602 continue; 1603 1604 if (!cs_ctl->enabled) 1605 continue; 1606 1607 ret = wm_adsp_buffer_parse_coeff(cs_ctl); 1608 if (ret < 0) { 1609 adsp_err(dsp, "Failed to parse coeff: %d\n", ret); 1610 goto error; 1611 } else if (ret == 0) { 1612 /* Only one buffer supported for version 0 */ 1613 return 0; 1614 } 1615 } 1616 1617 if (list_empty(&dsp->buffer_list)) { 1618 /* Fall back to legacy support */ 1619 ret = wm_adsp_buffer_parse_legacy(dsp); 1620 if (ret) 1621 adsp_warn(dsp, "Failed to parse legacy: %d\n", ret); 1622 } 1623 1624 return 0; 1625 1626 error: 1627 wm_adsp_buffer_free(dsp); 1628 return ret; 1629 } 1630 1631 static int wm_adsp_buffer_free(struct wm_adsp *dsp) 1632 { 1633 struct wm_adsp_compr_buf *buf, *tmp; 1634 1635 list_for_each_entry_safe(buf, tmp, &dsp->buffer_list, list) { 1636 wm_adsp_compr_detach(buf->compr); 1637 1638 kfree(buf->name); 1639 kfree(buf->regions); 1640 list_del(&buf->list); 1641 kfree(buf); 1642 } 1643 1644 return 0; 1645 } 1646 1647 static int wm_adsp_buffer_get_error(struct wm_adsp_compr_buf *buf) 1648 { 1649 int ret; 1650 1651 ret = wm_adsp_buffer_read(buf, HOST_BUFFER_FIELD(error), &buf->error); 1652 if (ret < 0) { 1653 compr_err(buf, "Failed to check buffer error: %d\n", ret); 1654 return ret; 1655 } 1656 if (buf->error != 0) { 1657 compr_err(buf, "Buffer error occurred: %d\n", buf->error); 1658 return -EIO; 1659 } 1660 1661 return 0; 1662 } 1663 1664 int wm_adsp_compr_trigger(struct snd_soc_component *component, 1665 struct snd_compr_stream *stream, int cmd) 1666 { 1667 struct wm_adsp_compr *compr = stream->runtime->private_data; 1668 struct wm_adsp *dsp = compr->dsp; 1669 int ret = 0; 1670 1671 compr_dbg(compr, "Trigger: %d\n", cmd); 1672 1673 mutex_lock(&dsp->cs_dsp.pwr_lock); 1674 1675 switch (cmd) { 1676 case SNDRV_PCM_TRIGGER_START: 1677 if (!wm_adsp_compr_attached(compr)) { 1678 ret = wm_adsp_compr_attach(compr); 1679 if (ret < 0) { 1680 compr_err(compr, "Failed to link buffer and stream: %d\n", 1681 ret); 1682 break; 1683 } 1684 } 1685 1686 ret = wm_adsp_buffer_get_error(compr->buf); 1687 if (ret < 0) 1688 break; 1689 1690 /* Trigger the IRQ at one fragment of data */ 1691 ret = wm_adsp_buffer_write(compr->buf, 1692 HOST_BUFFER_FIELD(high_water_mark), 1693 wm_adsp_compr_frag_words(compr)); 1694 if (ret < 0) { 1695 compr_err(compr, "Failed to set high water mark: %d\n", 1696 ret); 1697 break; 1698 } 1699 break; 1700 case SNDRV_PCM_TRIGGER_STOP: 1701 if (wm_adsp_compr_attached(compr)) 1702 wm_adsp_buffer_clear(compr->buf); 1703 break; 1704 default: 1705 ret = -EINVAL; 1706 break; 1707 } 1708 1709 mutex_unlock(&dsp->cs_dsp.pwr_lock); 1710 1711 return ret; 1712 } 1713 EXPORT_SYMBOL_GPL(wm_adsp_compr_trigger); 1714 1715 static inline int wm_adsp_buffer_size(struct wm_adsp_compr_buf *buf) 1716 { 1717 int last_region = wm_adsp_fw[buf->dsp->fw].caps->num_regions - 1; 1718 1719 return buf->regions[last_region].cumulative_size; 1720 } 1721 1722 static int wm_adsp_buffer_update_avail(struct wm_adsp_compr_buf *buf) 1723 { 1724 u32 next_read_index, next_write_index; 1725 int write_index, read_index, avail; 1726 int ret; 1727 1728 /* Only sync read index if we haven't already read a valid index */ 1729 if (buf->read_index < 0) { 1730 ret = wm_adsp_buffer_read(buf, 1731 HOST_BUFFER_FIELD(next_read_index), 1732 &next_read_index); 1733 if (ret < 0) 1734 return ret; 1735 1736 read_index = sign_extend32(next_read_index, 23); 1737 1738 if (read_index < 0) { 1739 compr_dbg(buf, "Avail check on unstarted stream\n"); 1740 return 0; 1741 } 1742 1743 buf->read_index = read_index; 1744 } 1745 1746 ret = wm_adsp_buffer_read(buf, HOST_BUFFER_FIELD(next_write_index), 1747 &next_write_index); 1748 if (ret < 0) 1749 return ret; 1750 1751 write_index = sign_extend32(next_write_index, 23); 1752 1753 avail = write_index - buf->read_index; 1754 if (avail < 0) 1755 avail += wm_adsp_buffer_size(buf); 1756 1757 compr_dbg(buf, "readindex=0x%x, writeindex=0x%x, avail=%d\n", 1758 buf->read_index, write_index, avail * CS_DSP_DATA_WORD_SIZE); 1759 1760 buf->avail = avail; 1761 1762 return 0; 1763 } 1764 1765 int wm_adsp_compr_handle_irq(struct wm_adsp *dsp) 1766 { 1767 struct wm_adsp_compr_buf *buf; 1768 struct wm_adsp_compr *compr; 1769 int ret = 0; 1770 1771 mutex_lock(&dsp->cs_dsp.pwr_lock); 1772 1773 if (list_empty(&dsp->buffer_list)) { 1774 ret = -ENODEV; 1775 goto out; 1776 } 1777 1778 adsp_dbg(dsp, "Handling buffer IRQ\n"); 1779 1780 list_for_each_entry(buf, &dsp->buffer_list, list) { 1781 compr = buf->compr; 1782 1783 ret = wm_adsp_buffer_get_error(buf); 1784 if (ret < 0) 1785 goto out_notify; /* Wake poll to report error */ 1786 1787 ret = wm_adsp_buffer_read(buf, HOST_BUFFER_FIELD(irq_count), 1788 &buf->irq_count); 1789 if (ret < 0) { 1790 compr_err(buf, "Failed to get irq_count: %d\n", ret); 1791 goto out; 1792 } 1793 1794 ret = wm_adsp_buffer_update_avail(buf); 1795 if (ret < 0) { 1796 compr_err(buf, "Error reading avail: %d\n", ret); 1797 goto out; 1798 } 1799 1800 if (wm_adsp_fw[dsp->fw].voice_trigger && buf->irq_count == 2) 1801 ret = WM_ADSP_COMPR_VOICE_TRIGGER; 1802 1803 out_notify: 1804 if (compr && compr->stream) 1805 snd_compr_fragment_elapsed(compr->stream); 1806 } 1807 1808 out: 1809 mutex_unlock(&dsp->cs_dsp.pwr_lock); 1810 1811 return ret; 1812 } 1813 EXPORT_SYMBOL_GPL(wm_adsp_compr_handle_irq); 1814 1815 static int wm_adsp_buffer_reenable_irq(struct wm_adsp_compr_buf *buf) 1816 { 1817 if (buf->irq_count & 0x01) 1818 return 0; 1819 1820 compr_dbg(buf, "Enable IRQ(0x%x) for next fragment\n", buf->irq_count); 1821 1822 buf->irq_count |= 0x01; 1823 1824 return wm_adsp_buffer_write(buf, HOST_BUFFER_FIELD(irq_ack), 1825 buf->irq_count); 1826 } 1827 1828 int wm_adsp_compr_pointer(struct snd_soc_component *component, 1829 struct snd_compr_stream *stream, 1830 struct snd_compr_tstamp *tstamp) 1831 { 1832 struct wm_adsp_compr *compr = stream->runtime->private_data; 1833 struct wm_adsp *dsp = compr->dsp; 1834 struct wm_adsp_compr_buf *buf; 1835 int ret = 0; 1836 1837 compr_dbg(compr, "Pointer request\n"); 1838 1839 mutex_lock(&dsp->cs_dsp.pwr_lock); 1840 1841 buf = compr->buf; 1842 1843 if (dsp->fatal_error || !buf || buf->error) { 1844 snd_compr_stop_error(stream, SNDRV_PCM_STATE_XRUN); 1845 ret = -EIO; 1846 goto out; 1847 } 1848 1849 if (buf->avail < wm_adsp_compr_frag_words(compr)) { 1850 ret = wm_adsp_buffer_update_avail(buf); 1851 if (ret < 0) { 1852 compr_err(compr, "Error reading avail: %d\n", ret); 1853 goto out; 1854 } 1855 1856 /* 1857 * If we really have less than 1 fragment available tell the 1858 * DSP to inform us once a whole fragment is available. 1859 */ 1860 if (buf->avail < wm_adsp_compr_frag_words(compr)) { 1861 ret = wm_adsp_buffer_get_error(buf); 1862 if (ret < 0) { 1863 if (buf->error) 1864 snd_compr_stop_error(stream, 1865 SNDRV_PCM_STATE_XRUN); 1866 goto out; 1867 } 1868 1869 ret = wm_adsp_buffer_reenable_irq(buf); 1870 if (ret < 0) { 1871 compr_err(compr, "Failed to re-enable buffer IRQ: %d\n", 1872 ret); 1873 goto out; 1874 } 1875 } 1876 } 1877 1878 tstamp->copied_total = compr->copied_total; 1879 tstamp->copied_total += buf->avail * CS_DSP_DATA_WORD_SIZE; 1880 tstamp->sampling_rate = compr->sample_rate; 1881 1882 out: 1883 mutex_unlock(&dsp->cs_dsp.pwr_lock); 1884 1885 return ret; 1886 } 1887 EXPORT_SYMBOL_GPL(wm_adsp_compr_pointer); 1888 1889 static int wm_adsp_buffer_capture_block(struct wm_adsp_compr *compr, int target) 1890 { 1891 struct wm_adsp_compr_buf *buf = compr->buf; 1892 unsigned int adsp_addr; 1893 int mem_type, nwords, max_read; 1894 int i, ret; 1895 1896 /* Calculate read parameters */ 1897 for (i = 0; i < wm_adsp_fw[buf->dsp->fw].caps->num_regions; ++i) 1898 if (buf->read_index < buf->regions[i].cumulative_size) 1899 break; 1900 1901 if (i == wm_adsp_fw[buf->dsp->fw].caps->num_regions) 1902 return -EINVAL; 1903 1904 mem_type = buf->regions[i].mem_type; 1905 adsp_addr = buf->regions[i].base_addr + 1906 (buf->read_index - buf->regions[i].offset); 1907 1908 max_read = wm_adsp_compr_frag_words(compr); 1909 nwords = buf->regions[i].cumulative_size - buf->read_index; 1910 1911 if (nwords > target) 1912 nwords = target; 1913 if (nwords > buf->avail) 1914 nwords = buf->avail; 1915 if (nwords > max_read) 1916 nwords = max_read; 1917 if (!nwords) 1918 return 0; 1919 1920 /* Read data from DSP */ 1921 ret = cs_dsp_read_raw_data_block(&buf->dsp->cs_dsp, mem_type, adsp_addr, 1922 nwords, (__be32 *)compr->raw_buf); 1923 if (ret < 0) 1924 return ret; 1925 1926 cs_dsp_remove_padding(compr->raw_buf, nwords); 1927 1928 /* update read index to account for words read */ 1929 buf->read_index += nwords; 1930 if (buf->read_index == wm_adsp_buffer_size(buf)) 1931 buf->read_index = 0; 1932 1933 ret = wm_adsp_buffer_write(buf, HOST_BUFFER_FIELD(next_read_index), 1934 buf->read_index); 1935 if (ret < 0) 1936 return ret; 1937 1938 /* update avail to account for words read */ 1939 buf->avail -= nwords; 1940 1941 return nwords; 1942 } 1943 1944 static int wm_adsp_compr_read(struct wm_adsp_compr *compr, 1945 char __user *buf, size_t count) 1946 { 1947 struct wm_adsp *dsp = compr->dsp; 1948 int ntotal = 0; 1949 int nwords, nbytes; 1950 1951 compr_dbg(compr, "Requested read of %zu bytes\n", count); 1952 1953 if (dsp->fatal_error || !compr->buf || compr->buf->error) { 1954 snd_compr_stop_error(compr->stream, SNDRV_PCM_STATE_XRUN); 1955 return -EIO; 1956 } 1957 1958 count /= CS_DSP_DATA_WORD_SIZE; 1959 1960 do { 1961 nwords = wm_adsp_buffer_capture_block(compr, count); 1962 if (nwords < 0) { 1963 compr_err(compr, "Failed to capture block: %d\n", 1964 nwords); 1965 return nwords; 1966 } 1967 1968 nbytes = nwords * CS_DSP_DATA_WORD_SIZE; 1969 1970 compr_dbg(compr, "Read %d bytes\n", nbytes); 1971 1972 if (copy_to_user(buf + ntotal, compr->raw_buf, nbytes)) { 1973 compr_err(compr, "Failed to copy data to user: %d, %d\n", 1974 ntotal, nbytes); 1975 return -EFAULT; 1976 } 1977 1978 count -= nwords; 1979 ntotal += nbytes; 1980 } while (nwords > 0 && count > 0); 1981 1982 compr->copied_total += ntotal; 1983 1984 return ntotal; 1985 } 1986 1987 int wm_adsp_compr_copy(struct snd_soc_component *component, 1988 struct snd_compr_stream *stream, char __user *buf, 1989 size_t count) 1990 { 1991 struct wm_adsp_compr *compr = stream->runtime->private_data; 1992 struct wm_adsp *dsp = compr->dsp; 1993 int ret; 1994 1995 mutex_lock(&dsp->cs_dsp.pwr_lock); 1996 1997 if (stream->direction == SND_COMPRESS_CAPTURE) 1998 ret = wm_adsp_compr_read(compr, buf, count); 1999 else 2000 ret = -ENOTSUPP; 2001 2002 mutex_unlock(&dsp->cs_dsp.pwr_lock); 2003 2004 return ret; 2005 } 2006 EXPORT_SYMBOL_GPL(wm_adsp_compr_copy); 2007 2008 static void wm_adsp_fatal_error(struct cs_dsp *cs_dsp) 2009 { 2010 struct wm_adsp *dsp = container_of(cs_dsp, struct wm_adsp, cs_dsp); 2011 struct wm_adsp_compr *compr; 2012 2013 dsp->fatal_error = true; 2014 2015 list_for_each_entry(compr, &dsp->compr_list, list) { 2016 if (compr->stream) 2017 snd_compr_fragment_elapsed(compr->stream); 2018 } 2019 } 2020 2021 irqreturn_t wm_adsp2_bus_error(int irq, void *data) 2022 { 2023 struct wm_adsp *dsp = (struct wm_adsp *)data; 2024 2025 cs_dsp_adsp2_bus_error(&dsp->cs_dsp); 2026 2027 return IRQ_HANDLED; 2028 } 2029 EXPORT_SYMBOL_GPL(wm_adsp2_bus_error); 2030 2031 irqreturn_t wm_halo_bus_error(int irq, void *data) 2032 { 2033 struct wm_adsp *dsp = (struct wm_adsp *)data; 2034 2035 cs_dsp_halo_bus_error(&dsp->cs_dsp); 2036 2037 return IRQ_HANDLED; 2038 } 2039 EXPORT_SYMBOL_GPL(wm_halo_bus_error); 2040 2041 irqreturn_t wm_halo_wdt_expire(int irq, void *data) 2042 { 2043 struct wm_adsp *dsp = data; 2044 2045 cs_dsp_halo_wdt_expire(&dsp->cs_dsp); 2046 2047 return IRQ_HANDLED; 2048 } 2049 EXPORT_SYMBOL_GPL(wm_halo_wdt_expire); 2050 2051 static const struct cs_dsp_client_ops wm_adsp1_client_ops = { 2052 .control_add = wm_adsp_control_add, 2053 .control_remove = wm_adsp_control_remove, 2054 }; 2055 2056 static const struct cs_dsp_client_ops wm_adsp2_client_ops = { 2057 .control_add = wm_adsp_control_add, 2058 .control_remove = wm_adsp_control_remove, 2059 .post_run = wm_adsp_event_post_run, 2060 .post_stop = wm_adsp_event_post_stop, 2061 .watchdog_expired = wm_adsp_fatal_error, 2062 }; 2063 2064 MODULE_LICENSE("GPL v2"); 2065