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/vmalloc.h> 23 #include <linux/workqueue.h> 24 #include <linux/debugfs.h> 25 #include <sound/core.h> 26 #include <sound/pcm.h> 27 #include <sound/pcm_params.h> 28 #include <sound/soc.h> 29 #include <sound/jack.h> 30 #include <sound/initval.h> 31 #include <sound/tlv.h> 32 33 #include "wm_adsp.h" 34 35 #define adsp_crit(_dsp, fmt, ...) \ 36 dev_crit(_dsp->cs_dsp.dev, "%s: " fmt, _dsp->cs_dsp.name, ##__VA_ARGS__) 37 #define adsp_err(_dsp, fmt, ...) \ 38 dev_err(_dsp->cs_dsp.dev, "%s: " fmt, _dsp->cs_dsp.name, ##__VA_ARGS__) 39 #define adsp_warn(_dsp, fmt, ...) \ 40 dev_warn(_dsp->cs_dsp.dev, "%s: " fmt, _dsp->cs_dsp.name, ##__VA_ARGS__) 41 #define adsp_info(_dsp, fmt, ...) \ 42 dev_info(_dsp->cs_dsp.dev, "%s: " fmt, _dsp->cs_dsp.name, ##__VA_ARGS__) 43 #define adsp_dbg(_dsp, fmt, ...) \ 44 dev_dbg(_dsp->cs_dsp.dev, "%s: " fmt, _dsp->cs_dsp.name, ##__VA_ARGS__) 45 46 #define compr_err(_obj, fmt, ...) \ 47 adsp_err(_obj->dsp, "%s: " fmt, _obj->name ? _obj->name : "legacy", \ 48 ##__VA_ARGS__) 49 #define compr_dbg(_obj, fmt, ...) \ 50 adsp_dbg(_obj->dsp, "%s: " fmt, _obj->name ? _obj->name : "legacy", \ 51 ##__VA_ARGS__) 52 53 #define ADSP_MAX_STD_CTRL_SIZE 512 54 55 static const struct cs_dsp_client_ops wm_adsp1_client_ops; 56 static const struct cs_dsp_client_ops wm_adsp2_client_ops; 57 58 #define WM_ADSP_FW_MBC_VSS 0 59 #define WM_ADSP_FW_HIFI 1 60 #define WM_ADSP_FW_TX 2 61 #define WM_ADSP_FW_TX_SPK 3 62 #define WM_ADSP_FW_RX 4 63 #define WM_ADSP_FW_RX_ANC 5 64 #define WM_ADSP_FW_CTRL 6 65 #define WM_ADSP_FW_ASR 7 66 #define WM_ADSP_FW_TRACE 8 67 #define WM_ADSP_FW_SPK_PROT 9 68 #define WM_ADSP_FW_SPK_CALI 10 69 #define WM_ADSP_FW_SPK_DIAG 11 70 #define WM_ADSP_FW_MISC 12 71 72 #define WM_ADSP_NUM_FW 13 73 74 static const char *wm_adsp_fw_text[WM_ADSP_NUM_FW] = { 75 [WM_ADSP_FW_MBC_VSS] = "MBC/VSS", 76 [WM_ADSP_FW_HIFI] = "MasterHiFi", 77 [WM_ADSP_FW_TX] = "Tx", 78 [WM_ADSP_FW_TX_SPK] = "Tx Speaker", 79 [WM_ADSP_FW_RX] = "Rx", 80 [WM_ADSP_FW_RX_ANC] = "Rx ANC", 81 [WM_ADSP_FW_CTRL] = "Voice Ctrl", 82 [WM_ADSP_FW_ASR] = "ASR Assist", 83 [WM_ADSP_FW_TRACE] = "Dbg Trace", 84 [WM_ADSP_FW_SPK_PROT] = "Protection", 85 [WM_ADSP_FW_SPK_CALI] = "Calibration", 86 [WM_ADSP_FW_SPK_DIAG] = "Diagnostic", 87 [WM_ADSP_FW_MISC] = "Misc", 88 }; 89 90 struct wm_adsp_system_config_xm_hdr { 91 __be32 sys_enable; 92 __be32 fw_id; 93 __be32 fw_rev; 94 __be32 boot_status; 95 __be32 watchdog; 96 __be32 dma_buffer_size; 97 __be32 rdma[6]; 98 __be32 wdma[8]; 99 __be32 build_job_name[3]; 100 __be32 build_job_number; 101 } __packed; 102 103 struct wm_halo_system_config_xm_hdr { 104 __be32 halo_heartbeat; 105 __be32 build_job_name[3]; 106 __be32 build_job_number; 107 } __packed; 108 109 struct wm_adsp_alg_xm_struct { 110 __be32 magic; 111 __be32 smoothing; 112 __be32 threshold; 113 __be32 host_buf_ptr; 114 __be32 start_seq; 115 __be32 high_water_mark; 116 __be32 low_water_mark; 117 __be64 smoothed_power; 118 } __packed; 119 120 struct wm_adsp_host_buf_coeff_v1 { 121 __be32 host_buf_ptr; /* Host buffer pointer */ 122 __be32 versions; /* Version numbers */ 123 __be32 name[4]; /* The buffer name */ 124 } __packed; 125 126 struct wm_adsp_buffer { 127 __be32 buf1_base; /* Base addr of first buffer area */ 128 __be32 buf1_size; /* Size of buf1 area in DSP words */ 129 __be32 buf2_base; /* Base addr of 2nd buffer area */ 130 __be32 buf1_buf2_size; /* Size of buf1+buf2 in DSP words */ 131 __be32 buf3_base; /* Base addr of buf3 area */ 132 __be32 buf_total_size; /* Size of buf1+buf2+buf3 in DSP words */ 133 __be32 high_water_mark; /* Point at which IRQ is asserted */ 134 __be32 irq_count; /* bits 1-31 count IRQ assertions */ 135 __be32 irq_ack; /* acked IRQ count, bit 0 enables IRQ */ 136 __be32 next_write_index; /* word index of next write */ 137 __be32 next_read_index; /* word index of next read */ 138 __be32 error; /* error if any */ 139 __be32 oldest_block_index; /* word index of oldest surviving */ 140 __be32 requested_rewind; /* how many blocks rewind was done */ 141 __be32 reserved_space; /* internal */ 142 __be32 min_free; /* min free space since stream start */ 143 __be32 blocks_written[2]; /* total blocks written (64 bit) */ 144 __be32 words_written[2]; /* total words written (64 bit) */ 145 } __packed; 146 147 struct wm_adsp_compr; 148 149 struct wm_adsp_compr_buf { 150 struct list_head list; 151 struct wm_adsp *dsp; 152 struct wm_adsp_compr *compr; 153 154 struct wm_adsp_buffer_region *regions; 155 u32 host_buf_ptr; 156 157 u32 error; 158 u32 irq_count; 159 int read_index; 160 int avail; 161 int host_buf_mem_type; 162 163 char *name; 164 }; 165 166 struct wm_adsp_compr { 167 struct list_head list; 168 struct wm_adsp *dsp; 169 struct wm_adsp_compr_buf *buf; 170 171 struct snd_compr_stream *stream; 172 struct snd_compressed_buffer size; 173 174 u32 *raw_buf; 175 unsigned int copied_total; 176 177 unsigned int sample_rate; 178 179 const char *name; 180 }; 181 182 #define WM_ADSP_MIN_FRAGMENTS 1 183 #define WM_ADSP_MAX_FRAGMENTS 256 184 #define WM_ADSP_MIN_FRAGMENT_SIZE (16 * CS_DSP_DATA_WORD_SIZE) 185 #define WM_ADSP_MAX_FRAGMENT_SIZE (4096 * CS_DSP_DATA_WORD_SIZE) 186 187 #define WM_ADSP_ALG_XM_STRUCT_MAGIC 0x49aec7 188 189 #define HOST_BUFFER_FIELD(field) \ 190 (offsetof(struct wm_adsp_buffer, field) / sizeof(__be32)) 191 192 #define ALG_XM_FIELD(field) \ 193 (offsetof(struct wm_adsp_alg_xm_struct, field) / sizeof(__be32)) 194 195 #define HOST_BUF_COEFF_SUPPORTED_COMPAT_VER 1 196 197 #define HOST_BUF_COEFF_COMPAT_VER_MASK 0xFF00 198 #define HOST_BUF_COEFF_COMPAT_VER_SHIFT 8 199 200 static int wm_adsp_buffer_init(struct wm_adsp *dsp); 201 static int wm_adsp_buffer_free(struct wm_adsp *dsp); 202 203 struct wm_adsp_buffer_region { 204 unsigned int offset; 205 unsigned int cumulative_size; 206 unsigned int mem_type; 207 unsigned int base_addr; 208 }; 209 210 struct wm_adsp_buffer_region_def { 211 unsigned int mem_type; 212 unsigned int base_offset; 213 unsigned int size_offset; 214 }; 215 216 static const struct wm_adsp_buffer_region_def default_regions[] = { 217 { 218 .mem_type = WMFW_ADSP2_XM, 219 .base_offset = HOST_BUFFER_FIELD(buf1_base), 220 .size_offset = HOST_BUFFER_FIELD(buf1_size), 221 }, 222 { 223 .mem_type = WMFW_ADSP2_XM, 224 .base_offset = HOST_BUFFER_FIELD(buf2_base), 225 .size_offset = HOST_BUFFER_FIELD(buf1_buf2_size), 226 }, 227 { 228 .mem_type = WMFW_ADSP2_YM, 229 .base_offset = HOST_BUFFER_FIELD(buf3_base), 230 .size_offset = HOST_BUFFER_FIELD(buf_total_size), 231 }, 232 }; 233 234 struct wm_adsp_fw_caps { 235 u32 id; 236 struct snd_codec_desc desc; 237 int num_regions; 238 const struct wm_adsp_buffer_region_def *region_defs; 239 }; 240 241 static const struct wm_adsp_fw_caps ctrl_caps[] = { 242 { 243 .id = SND_AUDIOCODEC_BESPOKE, 244 .desc = { 245 .max_ch = 8, 246 .sample_rates = { 16000 }, 247 .num_sample_rates = 1, 248 .formats = SNDRV_PCM_FMTBIT_S16_LE, 249 }, 250 .num_regions = ARRAY_SIZE(default_regions), 251 .region_defs = default_regions, 252 }, 253 }; 254 255 static const struct wm_adsp_fw_caps trace_caps[] = { 256 { 257 .id = SND_AUDIOCODEC_BESPOKE, 258 .desc = { 259 .max_ch = 8, 260 .sample_rates = { 261 4000, 8000, 11025, 12000, 16000, 22050, 262 24000, 32000, 44100, 48000, 64000, 88200, 263 96000, 176400, 192000 264 }, 265 .num_sample_rates = 15, 266 .formats = SNDRV_PCM_FMTBIT_S16_LE, 267 }, 268 .num_regions = ARRAY_SIZE(default_regions), 269 .region_defs = default_regions, 270 }, 271 }; 272 273 static const struct { 274 const char *file; 275 int compr_direction; 276 int num_caps; 277 const struct wm_adsp_fw_caps *caps; 278 bool voice_trigger; 279 } wm_adsp_fw[WM_ADSP_NUM_FW] = { 280 [WM_ADSP_FW_MBC_VSS] = { .file = "mbc-vss" }, 281 [WM_ADSP_FW_HIFI] = { .file = "hifi" }, 282 [WM_ADSP_FW_TX] = { .file = "tx" }, 283 [WM_ADSP_FW_TX_SPK] = { .file = "tx-spk" }, 284 [WM_ADSP_FW_RX] = { .file = "rx" }, 285 [WM_ADSP_FW_RX_ANC] = { .file = "rx-anc" }, 286 [WM_ADSP_FW_CTRL] = { 287 .file = "ctrl", 288 .compr_direction = SND_COMPRESS_CAPTURE, 289 .num_caps = ARRAY_SIZE(ctrl_caps), 290 .caps = ctrl_caps, 291 .voice_trigger = true, 292 }, 293 [WM_ADSP_FW_ASR] = { .file = "asr" }, 294 [WM_ADSP_FW_TRACE] = { 295 .file = "trace", 296 .compr_direction = SND_COMPRESS_CAPTURE, 297 .num_caps = ARRAY_SIZE(trace_caps), 298 .caps = trace_caps, 299 }, 300 [WM_ADSP_FW_SPK_PROT] = { 301 .file = "spk-prot", 302 .compr_direction = SND_COMPRESS_CAPTURE, 303 .num_caps = ARRAY_SIZE(trace_caps), 304 .caps = trace_caps, 305 }, 306 [WM_ADSP_FW_SPK_CALI] = { .file = "spk-cali" }, 307 [WM_ADSP_FW_SPK_DIAG] = { .file = "spk-diag" }, 308 [WM_ADSP_FW_MISC] = { .file = "misc" }, 309 }; 310 311 struct wm_coeff_ctl { 312 const char *name; 313 struct cs_dsp_coeff_ctl *cs_ctl; 314 struct soc_bytes_ext bytes_ext; 315 struct work_struct work; 316 }; 317 318 int wm_adsp_fw_get(struct snd_kcontrol *kcontrol, 319 struct snd_ctl_elem_value *ucontrol) 320 { 321 struct snd_soc_component *component = snd_soc_kcontrol_component(kcontrol); 322 struct soc_enum *e = (struct soc_enum *)kcontrol->private_value; 323 struct wm_adsp *dsp = snd_soc_component_get_drvdata(component); 324 325 ucontrol->value.enumerated.item[0] = dsp[e->shift_l].fw; 326 327 return 0; 328 } 329 EXPORT_SYMBOL_GPL(wm_adsp_fw_get); 330 331 int wm_adsp_fw_put(struct snd_kcontrol *kcontrol, 332 struct snd_ctl_elem_value *ucontrol) 333 { 334 struct snd_soc_component *component = snd_soc_kcontrol_component(kcontrol); 335 struct soc_enum *e = (struct soc_enum *)kcontrol->private_value; 336 struct wm_adsp *dsp = snd_soc_component_get_drvdata(component); 337 int ret = 1; 338 339 if (ucontrol->value.enumerated.item[0] == dsp[e->shift_l].fw) 340 return 0; 341 342 if (ucontrol->value.enumerated.item[0] >= WM_ADSP_NUM_FW) 343 return -EINVAL; 344 345 mutex_lock(&dsp[e->shift_l].cs_dsp.pwr_lock); 346 347 if (dsp[e->shift_l].cs_dsp.booted || !list_empty(&dsp[e->shift_l].compr_list)) 348 ret = -EBUSY; 349 else 350 dsp[e->shift_l].fw = ucontrol->value.enumerated.item[0]; 351 352 mutex_unlock(&dsp[e->shift_l].cs_dsp.pwr_lock); 353 354 return ret; 355 } 356 EXPORT_SYMBOL_GPL(wm_adsp_fw_put); 357 358 const struct soc_enum wm_adsp_fw_enum[] = { 359 SOC_ENUM_SINGLE(0, 0, ARRAY_SIZE(wm_adsp_fw_text), wm_adsp_fw_text), 360 SOC_ENUM_SINGLE(0, 1, ARRAY_SIZE(wm_adsp_fw_text), wm_adsp_fw_text), 361 SOC_ENUM_SINGLE(0, 2, ARRAY_SIZE(wm_adsp_fw_text), wm_adsp_fw_text), 362 SOC_ENUM_SINGLE(0, 3, ARRAY_SIZE(wm_adsp_fw_text), wm_adsp_fw_text), 363 SOC_ENUM_SINGLE(0, 4, ARRAY_SIZE(wm_adsp_fw_text), wm_adsp_fw_text), 364 SOC_ENUM_SINGLE(0, 5, ARRAY_SIZE(wm_adsp_fw_text), wm_adsp_fw_text), 365 SOC_ENUM_SINGLE(0, 6, ARRAY_SIZE(wm_adsp_fw_text), wm_adsp_fw_text), 366 }; 367 EXPORT_SYMBOL_GPL(wm_adsp_fw_enum); 368 369 static inline struct wm_coeff_ctl *bytes_ext_to_ctl(struct soc_bytes_ext *ext) 370 { 371 return container_of(ext, struct wm_coeff_ctl, bytes_ext); 372 } 373 374 static int wm_coeff_info(struct snd_kcontrol *kctl, 375 struct snd_ctl_elem_info *uinfo) 376 { 377 struct soc_bytes_ext *bytes_ext = 378 (struct soc_bytes_ext *)kctl->private_value; 379 struct wm_coeff_ctl *ctl = bytes_ext_to_ctl(bytes_ext); 380 struct cs_dsp_coeff_ctl *cs_ctl = ctl->cs_ctl; 381 382 switch (cs_ctl->type) { 383 case WMFW_CTL_TYPE_ACKED: 384 uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER; 385 uinfo->value.integer.min = CS_DSP_ACKED_CTL_MIN_VALUE; 386 uinfo->value.integer.max = CS_DSP_ACKED_CTL_MAX_VALUE; 387 uinfo->value.integer.step = 1; 388 uinfo->count = 1; 389 break; 390 default: 391 uinfo->type = SNDRV_CTL_ELEM_TYPE_BYTES; 392 uinfo->count = cs_ctl->len; 393 break; 394 } 395 396 return 0; 397 } 398 399 static int wm_coeff_put(struct snd_kcontrol *kctl, 400 struct snd_ctl_elem_value *ucontrol) 401 { 402 struct soc_bytes_ext *bytes_ext = 403 (struct soc_bytes_ext *)kctl->private_value; 404 struct wm_coeff_ctl *ctl = bytes_ext_to_ctl(bytes_ext); 405 struct cs_dsp_coeff_ctl *cs_ctl = ctl->cs_ctl; 406 char *p = ucontrol->value.bytes.data; 407 int ret = 0; 408 409 mutex_lock(&cs_ctl->dsp->pwr_lock); 410 ret = cs_dsp_coeff_write_ctrl(cs_ctl, 0, p, cs_ctl->len); 411 mutex_unlock(&cs_ctl->dsp->pwr_lock); 412 413 return ret; 414 } 415 416 static int wm_coeff_tlv_put(struct snd_kcontrol *kctl, 417 const unsigned int __user *bytes, unsigned int size) 418 { 419 struct soc_bytes_ext *bytes_ext = 420 (struct soc_bytes_ext *)kctl->private_value; 421 struct wm_coeff_ctl *ctl = bytes_ext_to_ctl(bytes_ext); 422 struct cs_dsp_coeff_ctl *cs_ctl = ctl->cs_ctl; 423 void *scratch; 424 int ret = 0; 425 426 scratch = vmalloc(size); 427 if (!scratch) 428 return -ENOMEM; 429 430 if (copy_from_user(scratch, bytes, size)) { 431 ret = -EFAULT; 432 } else { 433 mutex_lock(&cs_ctl->dsp->pwr_lock); 434 ret = cs_dsp_coeff_write_ctrl(cs_ctl, 0, scratch, size); 435 mutex_unlock(&cs_ctl->dsp->pwr_lock); 436 } 437 vfree(scratch); 438 439 return ret; 440 } 441 442 static int wm_coeff_put_acked(struct snd_kcontrol *kctl, 443 struct snd_ctl_elem_value *ucontrol) 444 { 445 struct soc_bytes_ext *bytes_ext = 446 (struct soc_bytes_ext *)kctl->private_value; 447 struct wm_coeff_ctl *ctl = bytes_ext_to_ctl(bytes_ext); 448 struct cs_dsp_coeff_ctl *cs_ctl = ctl->cs_ctl; 449 unsigned int val = ucontrol->value.integer.value[0]; 450 int ret; 451 452 if (val == 0) 453 return 0; /* 0 means no event */ 454 455 mutex_lock(&cs_ctl->dsp->pwr_lock); 456 457 if (cs_ctl->enabled) 458 ret = cs_dsp_coeff_write_acked_control(cs_ctl, val); 459 else 460 ret = -EPERM; 461 462 mutex_unlock(&cs_ctl->dsp->pwr_lock); 463 464 if (ret < 0) 465 return ret; 466 467 return 1; 468 } 469 470 static int wm_coeff_get(struct snd_kcontrol *kctl, 471 struct snd_ctl_elem_value *ucontrol) 472 { 473 struct soc_bytes_ext *bytes_ext = 474 (struct soc_bytes_ext *)kctl->private_value; 475 struct wm_coeff_ctl *ctl = bytes_ext_to_ctl(bytes_ext); 476 struct cs_dsp_coeff_ctl *cs_ctl = ctl->cs_ctl; 477 char *p = ucontrol->value.bytes.data; 478 int ret; 479 480 mutex_lock(&cs_ctl->dsp->pwr_lock); 481 ret = cs_dsp_coeff_read_ctrl(cs_ctl, 0, p, cs_ctl->len); 482 mutex_unlock(&cs_ctl->dsp->pwr_lock); 483 484 return ret; 485 } 486 487 static int wm_coeff_tlv_get(struct snd_kcontrol *kctl, 488 unsigned int __user *bytes, unsigned int size) 489 { 490 struct soc_bytes_ext *bytes_ext = 491 (struct soc_bytes_ext *)kctl->private_value; 492 struct wm_coeff_ctl *ctl = bytes_ext_to_ctl(bytes_ext); 493 struct cs_dsp_coeff_ctl *cs_ctl = ctl->cs_ctl; 494 int ret = 0; 495 496 mutex_lock(&cs_ctl->dsp->pwr_lock); 497 498 ret = cs_dsp_coeff_read_ctrl(cs_ctl, 0, cs_ctl->cache, size); 499 500 if (!ret && copy_to_user(bytes, cs_ctl->cache, size)) 501 ret = -EFAULT; 502 503 mutex_unlock(&cs_ctl->dsp->pwr_lock); 504 505 return ret; 506 } 507 508 static int wm_coeff_get_acked(struct snd_kcontrol *kcontrol, 509 struct snd_ctl_elem_value *ucontrol) 510 { 511 /* 512 * Although it's not useful to read an acked control, we must satisfy 513 * user-side assumptions that all controls are readable and that a 514 * write of the same value should be filtered out (it's valid to send 515 * the same event number again to the firmware). We therefore return 0, 516 * meaning "no event" so valid event numbers will always be a change 517 */ 518 ucontrol->value.integer.value[0] = 0; 519 520 return 0; 521 } 522 523 static unsigned int wmfw_convert_flags(unsigned int in, unsigned int len) 524 { 525 unsigned int out, rd, wr, vol; 526 527 if (len > ADSP_MAX_STD_CTRL_SIZE) { 528 rd = SNDRV_CTL_ELEM_ACCESS_TLV_READ; 529 wr = SNDRV_CTL_ELEM_ACCESS_TLV_WRITE; 530 vol = SNDRV_CTL_ELEM_ACCESS_VOLATILE; 531 532 out = SNDRV_CTL_ELEM_ACCESS_TLV_CALLBACK; 533 } else { 534 rd = SNDRV_CTL_ELEM_ACCESS_READ; 535 wr = SNDRV_CTL_ELEM_ACCESS_WRITE; 536 vol = SNDRV_CTL_ELEM_ACCESS_VOLATILE; 537 538 out = 0; 539 } 540 541 if (in) { 542 out |= rd; 543 if (in & WMFW_CTL_FLAG_WRITEABLE) 544 out |= wr; 545 if (in & WMFW_CTL_FLAG_VOLATILE) 546 out |= vol; 547 } else { 548 out |= rd | wr | vol; 549 } 550 551 return out; 552 } 553 554 static void wm_adsp_ctl_work(struct work_struct *work) 555 { 556 struct wm_coeff_ctl *ctl = container_of(work, 557 struct wm_coeff_ctl, 558 work); 559 struct cs_dsp_coeff_ctl *cs_ctl = ctl->cs_ctl; 560 struct wm_adsp *dsp = container_of(cs_ctl->dsp, 561 struct wm_adsp, 562 cs_dsp); 563 struct snd_kcontrol_new *kcontrol; 564 565 kcontrol = kzalloc(sizeof(*kcontrol), GFP_KERNEL); 566 if (!kcontrol) 567 return; 568 569 kcontrol->name = ctl->name; 570 kcontrol->info = wm_coeff_info; 571 kcontrol->iface = SNDRV_CTL_ELEM_IFACE_MIXER; 572 kcontrol->tlv.c = snd_soc_bytes_tlv_callback; 573 kcontrol->private_value = (unsigned long)&ctl->bytes_ext; 574 kcontrol->access = wmfw_convert_flags(cs_ctl->flags, cs_ctl->len); 575 576 switch (cs_ctl->type) { 577 case WMFW_CTL_TYPE_ACKED: 578 kcontrol->get = wm_coeff_get_acked; 579 kcontrol->put = wm_coeff_put_acked; 580 break; 581 default: 582 if (kcontrol->access & SNDRV_CTL_ELEM_ACCESS_TLV_CALLBACK) { 583 ctl->bytes_ext.max = cs_ctl->len; 584 ctl->bytes_ext.get = wm_coeff_tlv_get; 585 ctl->bytes_ext.put = wm_coeff_tlv_put; 586 } else { 587 kcontrol->get = wm_coeff_get; 588 kcontrol->put = wm_coeff_put; 589 } 590 break; 591 } 592 593 snd_soc_add_component_controls(dsp->component, kcontrol, 1); 594 595 kfree(kcontrol); 596 } 597 598 static int wm_adsp_control_add(struct cs_dsp_coeff_ctl *cs_ctl) 599 { 600 struct wm_adsp *dsp = container_of(cs_ctl->dsp, struct wm_adsp, cs_dsp); 601 struct cs_dsp *cs_dsp = &dsp->cs_dsp; 602 struct wm_coeff_ctl *ctl; 603 char name[SNDRV_CTL_ELEM_ID_NAME_MAXLEN]; 604 const char *region_name; 605 int ret; 606 607 if (cs_ctl->flags & WMFW_CTL_FLAG_SYS) 608 return 0; 609 610 region_name = cs_dsp_mem_region_name(cs_ctl->alg_region.type); 611 if (!region_name) { 612 adsp_err(dsp, "Unknown region type: %d\n", cs_ctl->alg_region.type); 613 return -EINVAL; 614 } 615 616 switch (cs_dsp->fw_ver) { 617 case 0: 618 case 1: 619 ret = scnprintf(name, SNDRV_CTL_ELEM_ID_NAME_MAXLEN, 620 "%s %s %x", cs_dsp->name, region_name, 621 cs_ctl->alg_region.alg); 622 break; 623 case 2: 624 ret = scnprintf(name, SNDRV_CTL_ELEM_ID_NAME_MAXLEN, 625 "%s%c %.12s %x", cs_dsp->name, *region_name, 626 wm_adsp_fw_text[dsp->fw], cs_ctl->alg_region.alg); 627 break; 628 default: 629 ret = scnprintf(name, SNDRV_CTL_ELEM_ID_NAME_MAXLEN, 630 "%s %.12s %x", cs_dsp->name, 631 wm_adsp_fw_text[dsp->fw], cs_ctl->alg_region.alg); 632 break; 633 } 634 635 if (cs_ctl->subname) { 636 int avail = SNDRV_CTL_ELEM_ID_NAME_MAXLEN - ret - 2; 637 int skip = 0; 638 639 if (dsp->component->name_prefix) 640 avail -= strlen(dsp->component->name_prefix) + 1; 641 642 /* Truncate the subname from the start if it is too long */ 643 if (cs_ctl->subname_len > avail) 644 skip = cs_ctl->subname_len - avail; 645 646 snprintf(name + ret, SNDRV_CTL_ELEM_ID_NAME_MAXLEN - ret, 647 " %.*s", cs_ctl->subname_len - skip, cs_ctl->subname + skip); 648 } 649 650 ctl = kzalloc(sizeof(*ctl), GFP_KERNEL); 651 if (!ctl) 652 return -ENOMEM; 653 ctl->cs_ctl = cs_ctl; 654 655 ctl->name = kmemdup(name, strlen(name) + 1, GFP_KERNEL); 656 if (!ctl->name) { 657 ret = -ENOMEM; 658 goto err_ctl; 659 } 660 661 cs_ctl->priv = ctl; 662 663 INIT_WORK(&ctl->work, wm_adsp_ctl_work); 664 schedule_work(&ctl->work); 665 666 return 0; 667 668 err_ctl: 669 kfree(ctl); 670 671 return ret; 672 } 673 674 static void wm_adsp_control_remove(struct cs_dsp_coeff_ctl *cs_ctl) 675 { 676 struct wm_coeff_ctl *ctl = cs_ctl->priv; 677 678 cancel_work_sync(&ctl->work); 679 680 kfree(ctl->name); 681 kfree(ctl); 682 } 683 684 int wm_adsp_write_ctl(struct wm_adsp *dsp, const char *name, int type, 685 unsigned int alg, void *buf, size_t len) 686 { 687 struct cs_dsp_coeff_ctl *cs_ctl = cs_dsp_get_ctl(&dsp->cs_dsp, name, type, alg); 688 struct wm_coeff_ctl *ctl; 689 int ret; 690 691 ret = cs_dsp_coeff_write_ctrl(cs_ctl, 0, buf, len); 692 if (ret < 0) 693 return ret; 694 695 if (ret == 0 || (cs_ctl->flags & WMFW_CTL_FLAG_SYS)) 696 return 0; 697 698 ctl = cs_ctl->priv; 699 700 return snd_soc_component_notify_control(dsp->component, ctl->name); 701 } 702 EXPORT_SYMBOL_GPL(wm_adsp_write_ctl); 703 704 int wm_adsp_read_ctl(struct wm_adsp *dsp, const char *name, int type, 705 unsigned int alg, void *buf, size_t len) 706 { 707 return cs_dsp_coeff_read_ctrl(cs_dsp_get_ctl(&dsp->cs_dsp, name, type, alg), 708 0, buf, len); 709 } 710 EXPORT_SYMBOL_GPL(wm_adsp_read_ctl); 711 712 static void wm_adsp_release_firmware_files(struct wm_adsp *dsp, 713 const struct firmware *wmfw_firmware, 714 char *wmfw_filename, 715 const struct firmware *coeff_firmware, 716 char *coeff_filename) 717 { 718 if (wmfw_firmware) 719 release_firmware(wmfw_firmware); 720 kfree(wmfw_filename); 721 722 if (coeff_firmware) 723 release_firmware(coeff_firmware); 724 kfree(coeff_filename); 725 } 726 727 static int wm_adsp_request_firmware_file(struct wm_adsp *dsp, 728 const struct firmware **firmware, char **filename, 729 const char *dir, const char *system_name, 730 const char *asoc_component_prefix, 731 const char *filetype) 732 { 733 struct cs_dsp *cs_dsp = &dsp->cs_dsp; 734 char *s, c; 735 int ret = 0; 736 737 if (system_name && asoc_component_prefix) 738 *filename = kasprintf(GFP_KERNEL, "%s%s-%s-%s-%s-%s.%s", dir, dsp->part, 739 dsp->fwf_name, wm_adsp_fw[dsp->fw].file, system_name, 740 asoc_component_prefix, filetype); 741 else if (system_name) 742 *filename = kasprintf(GFP_KERNEL, "%s%s-%s-%s-%s.%s", dir, dsp->part, 743 dsp->fwf_name, wm_adsp_fw[dsp->fw].file, system_name, 744 filetype); 745 else 746 *filename = kasprintf(GFP_KERNEL, "%s%s-%s-%s.%s", dir, dsp->part, dsp->fwf_name, 747 wm_adsp_fw[dsp->fw].file, filetype); 748 749 if (*filename == NULL) 750 return -ENOMEM; 751 752 /* 753 * Make sure that filename is lower-case and any non alpha-numeric 754 * characters except full stop and forward slash are replaced with 755 * hyphens. 756 */ 757 s = *filename; 758 while (*s) { 759 c = *s; 760 if (isalnum(c)) 761 *s = tolower(c); 762 else if ((c != '.') && (c != '/')) 763 *s = '-'; 764 s++; 765 } 766 767 ret = firmware_request_nowarn(firmware, *filename, cs_dsp->dev); 768 if (ret != 0) { 769 adsp_dbg(dsp, "Failed to request '%s'\n", *filename); 770 kfree(*filename); 771 *filename = NULL; 772 } else { 773 adsp_dbg(dsp, "Found '%s'\n", *filename); 774 } 775 776 return ret; 777 } 778 779 static const char *cirrus_dir = "cirrus/"; 780 static int wm_adsp_request_firmware_files(struct wm_adsp *dsp, 781 const struct firmware **wmfw_firmware, 782 char **wmfw_filename, 783 const struct firmware **coeff_firmware, 784 char **coeff_filename) 785 { 786 const char *system_name = dsp->system_name; 787 const char *asoc_component_prefix = dsp->component->name_prefix; 788 int ret = 0; 789 790 if (system_name && asoc_component_prefix) { 791 if (!wm_adsp_request_firmware_file(dsp, wmfw_firmware, wmfw_filename, 792 cirrus_dir, system_name, 793 asoc_component_prefix, "wmfw")) { 794 wm_adsp_request_firmware_file(dsp, coeff_firmware, coeff_filename, 795 cirrus_dir, system_name, 796 asoc_component_prefix, "bin"); 797 return 0; 798 } 799 } 800 801 if (system_name) { 802 if (!wm_adsp_request_firmware_file(dsp, wmfw_firmware, wmfw_filename, 803 cirrus_dir, system_name, 804 NULL, "wmfw")) { 805 if (asoc_component_prefix) 806 wm_adsp_request_firmware_file(dsp, coeff_firmware, coeff_filename, 807 cirrus_dir, system_name, 808 asoc_component_prefix, "bin"); 809 810 if (!*coeff_firmware) 811 wm_adsp_request_firmware_file(dsp, coeff_firmware, coeff_filename, 812 cirrus_dir, system_name, 813 NULL, "bin"); 814 return 0; 815 } 816 } 817 818 if (!wm_adsp_request_firmware_file(dsp, wmfw_firmware, wmfw_filename, 819 "", NULL, NULL, "wmfw")) { 820 wm_adsp_request_firmware_file(dsp, coeff_firmware, coeff_filename, 821 "", NULL, NULL, "bin"); 822 return 0; 823 } 824 825 ret = wm_adsp_request_firmware_file(dsp, wmfw_firmware, wmfw_filename, 826 cirrus_dir, NULL, NULL, "wmfw"); 827 if (!ret) { 828 wm_adsp_request_firmware_file(dsp, coeff_firmware, coeff_filename, 829 cirrus_dir, NULL, NULL, "bin"); 830 return 0; 831 } 832 833 if (dsp->wmfw_optional) { 834 if (system_name) { 835 if (asoc_component_prefix) 836 wm_adsp_request_firmware_file(dsp, coeff_firmware, coeff_filename, 837 cirrus_dir, system_name, 838 asoc_component_prefix, "bin"); 839 840 if (!*coeff_firmware) 841 wm_adsp_request_firmware_file(dsp, coeff_firmware, coeff_filename, 842 cirrus_dir, system_name, 843 NULL, "bin"); 844 } 845 846 if (!*coeff_firmware) 847 wm_adsp_request_firmware_file(dsp, coeff_firmware, coeff_filename, 848 "", NULL, NULL, "bin"); 849 850 if (!*coeff_firmware) 851 wm_adsp_request_firmware_file(dsp, coeff_firmware, coeff_filename, 852 cirrus_dir, NULL, NULL, "bin"); 853 854 return 0; 855 } 856 857 adsp_err(dsp, "Failed to request firmware <%s>%s-%s-%s<-%s<%s>>.wmfw\n", 858 cirrus_dir, dsp->part, dsp->fwf_name, wm_adsp_fw[dsp->fw].file, 859 system_name, asoc_component_prefix); 860 861 return -ENOENT; 862 } 863 864 static int wm_adsp_common_init(struct wm_adsp *dsp) 865 { 866 char *p; 867 868 INIT_LIST_HEAD(&dsp->compr_list); 869 INIT_LIST_HEAD(&dsp->buffer_list); 870 871 if (!dsp->fwf_name) { 872 p = devm_kstrdup(dsp->cs_dsp.dev, dsp->cs_dsp.name, GFP_KERNEL); 873 if (!p) 874 return -ENOMEM; 875 876 dsp->fwf_name = p; 877 for (; *p != 0; ++p) 878 *p = tolower(*p); 879 } 880 881 return 0; 882 } 883 884 int wm_adsp1_init(struct wm_adsp *dsp) 885 { 886 int ret; 887 888 dsp->cs_dsp.client_ops = &wm_adsp1_client_ops; 889 890 ret = cs_dsp_adsp1_init(&dsp->cs_dsp); 891 if (ret) 892 return ret; 893 894 return wm_adsp_common_init(dsp); 895 } 896 EXPORT_SYMBOL_GPL(wm_adsp1_init); 897 898 int wm_adsp1_event(struct snd_soc_dapm_widget *w, 899 struct snd_kcontrol *kcontrol, 900 int event) 901 { 902 struct snd_soc_component *component = snd_soc_dapm_to_component(w->dapm); 903 struct wm_adsp *dsps = snd_soc_component_get_drvdata(component); 904 struct wm_adsp *dsp = &dsps[w->shift]; 905 int ret = 0; 906 char *wmfw_filename = NULL; 907 const struct firmware *wmfw_firmware = NULL; 908 char *coeff_filename = NULL; 909 const struct firmware *coeff_firmware = NULL; 910 911 dsp->component = component; 912 913 switch (event) { 914 case SND_SOC_DAPM_POST_PMU: 915 ret = wm_adsp_request_firmware_files(dsp, 916 &wmfw_firmware, &wmfw_filename, 917 &coeff_firmware, &coeff_filename); 918 if (ret) 919 break; 920 921 ret = cs_dsp_adsp1_power_up(&dsp->cs_dsp, 922 wmfw_firmware, wmfw_filename, 923 coeff_firmware, coeff_filename, 924 wm_adsp_fw_text[dsp->fw]); 925 926 wm_adsp_release_firmware_files(dsp, 927 wmfw_firmware, wmfw_filename, 928 coeff_firmware, coeff_filename); 929 break; 930 case SND_SOC_DAPM_PRE_PMD: 931 cs_dsp_adsp1_power_down(&dsp->cs_dsp); 932 break; 933 default: 934 break; 935 } 936 937 return ret; 938 } 939 EXPORT_SYMBOL_GPL(wm_adsp1_event); 940 941 int wm_adsp2_set_dspclk(struct snd_soc_dapm_widget *w, unsigned int freq) 942 { 943 struct snd_soc_component *component = snd_soc_dapm_to_component(w->dapm); 944 struct wm_adsp *dsps = snd_soc_component_get_drvdata(component); 945 struct wm_adsp *dsp = &dsps[w->shift]; 946 947 return cs_dsp_set_dspclk(&dsp->cs_dsp, freq); 948 } 949 EXPORT_SYMBOL_GPL(wm_adsp2_set_dspclk); 950 951 int wm_adsp2_preloader_get(struct snd_kcontrol *kcontrol, 952 struct snd_ctl_elem_value *ucontrol) 953 { 954 struct snd_soc_component *component = snd_soc_kcontrol_component(kcontrol); 955 struct wm_adsp *dsps = snd_soc_component_get_drvdata(component); 956 struct soc_mixer_control *mc = 957 (struct soc_mixer_control *)kcontrol->private_value; 958 struct wm_adsp *dsp = &dsps[mc->shift - 1]; 959 960 ucontrol->value.integer.value[0] = dsp->preloaded; 961 962 return 0; 963 } 964 EXPORT_SYMBOL_GPL(wm_adsp2_preloader_get); 965 966 int wm_adsp2_preloader_put(struct snd_kcontrol *kcontrol, 967 struct snd_ctl_elem_value *ucontrol) 968 { 969 struct snd_soc_component *component = snd_soc_kcontrol_component(kcontrol); 970 struct wm_adsp *dsps = snd_soc_component_get_drvdata(component); 971 struct snd_soc_dapm_context *dapm = snd_soc_component_get_dapm(component); 972 struct soc_mixer_control *mc = 973 (struct soc_mixer_control *)kcontrol->private_value; 974 struct wm_adsp *dsp = &dsps[mc->shift - 1]; 975 char preload[32]; 976 977 if (dsp->preloaded == ucontrol->value.integer.value[0]) 978 return 0; 979 980 snprintf(preload, ARRAY_SIZE(preload), "%s Preload", dsp->cs_dsp.name); 981 982 if (ucontrol->value.integer.value[0] || dsp->toggle_preload) 983 snd_soc_component_force_enable_pin(component, preload); 984 else 985 snd_soc_component_disable_pin(component, preload); 986 987 snd_soc_dapm_sync(dapm); 988 989 flush_work(&dsp->boot_work); 990 991 dsp->preloaded = ucontrol->value.integer.value[0]; 992 993 if (dsp->toggle_preload) { 994 snd_soc_component_disable_pin(component, preload); 995 snd_soc_dapm_sync(dapm); 996 } 997 998 return 1; 999 } 1000 EXPORT_SYMBOL_GPL(wm_adsp2_preloader_put); 1001 1002 int wm_adsp_power_up(struct wm_adsp *dsp) 1003 { 1004 int ret = 0; 1005 char *wmfw_filename = NULL; 1006 const struct firmware *wmfw_firmware = NULL; 1007 char *coeff_filename = NULL; 1008 const struct firmware *coeff_firmware = NULL; 1009 1010 ret = wm_adsp_request_firmware_files(dsp, 1011 &wmfw_firmware, &wmfw_filename, 1012 &coeff_firmware, &coeff_filename); 1013 if (ret) 1014 return ret; 1015 1016 ret = cs_dsp_power_up(&dsp->cs_dsp, 1017 wmfw_firmware, wmfw_filename, 1018 coeff_firmware, coeff_filename, 1019 wm_adsp_fw_text[dsp->fw]); 1020 1021 wm_adsp_release_firmware_files(dsp, 1022 wmfw_firmware, wmfw_filename, 1023 coeff_firmware, coeff_filename); 1024 1025 return ret; 1026 } 1027 EXPORT_SYMBOL_GPL(wm_adsp_power_up); 1028 1029 static void wm_adsp_boot_work(struct work_struct *work) 1030 { 1031 struct wm_adsp *dsp = container_of(work, 1032 struct wm_adsp, 1033 boot_work); 1034 1035 wm_adsp_power_up(dsp); 1036 } 1037 1038 int wm_adsp_early_event(struct snd_soc_dapm_widget *w, 1039 struct snd_kcontrol *kcontrol, int event) 1040 { 1041 struct snd_soc_component *component = snd_soc_dapm_to_component(w->dapm); 1042 struct wm_adsp *dsps = snd_soc_component_get_drvdata(component); 1043 struct wm_adsp *dsp = &dsps[w->shift]; 1044 1045 switch (event) { 1046 case SND_SOC_DAPM_PRE_PMU: 1047 queue_work(system_unbound_wq, &dsp->boot_work); 1048 break; 1049 case SND_SOC_DAPM_PRE_PMD: 1050 cs_dsp_power_down(&dsp->cs_dsp); 1051 break; 1052 default: 1053 break; 1054 } 1055 1056 return 0; 1057 } 1058 EXPORT_SYMBOL_GPL(wm_adsp_early_event); 1059 1060 static int wm_adsp_pre_run(struct cs_dsp *cs_dsp) 1061 { 1062 struct wm_adsp *dsp = container_of(cs_dsp, struct wm_adsp, cs_dsp); 1063 1064 if (!dsp->pre_run) 1065 return 0; 1066 1067 return (*dsp->pre_run)(dsp); 1068 } 1069 1070 static int wm_adsp_event_post_run(struct cs_dsp *cs_dsp) 1071 { 1072 struct wm_adsp *dsp = container_of(cs_dsp, struct wm_adsp, cs_dsp); 1073 1074 if (wm_adsp_fw[dsp->fw].num_caps != 0) 1075 return wm_adsp_buffer_init(dsp); 1076 1077 return 0; 1078 } 1079 1080 static void wm_adsp_event_post_stop(struct cs_dsp *cs_dsp) 1081 { 1082 struct wm_adsp *dsp = container_of(cs_dsp, struct wm_adsp, cs_dsp); 1083 1084 if (wm_adsp_fw[dsp->fw].num_caps != 0) 1085 wm_adsp_buffer_free(dsp); 1086 1087 dsp->fatal_error = false; 1088 } 1089 1090 int wm_adsp_event(struct snd_soc_dapm_widget *w, 1091 struct snd_kcontrol *kcontrol, int event) 1092 { 1093 struct snd_soc_component *component = snd_soc_dapm_to_component(w->dapm); 1094 struct wm_adsp *dsps = snd_soc_component_get_drvdata(component); 1095 struct wm_adsp *dsp = &dsps[w->shift]; 1096 int ret = 0; 1097 1098 switch (event) { 1099 case SND_SOC_DAPM_POST_PMU: 1100 flush_work(&dsp->boot_work); 1101 ret = cs_dsp_run(&dsp->cs_dsp); 1102 break; 1103 case SND_SOC_DAPM_PRE_PMD: 1104 cs_dsp_stop(&dsp->cs_dsp); 1105 break; 1106 default: 1107 break; 1108 } 1109 1110 return ret; 1111 } 1112 EXPORT_SYMBOL_GPL(wm_adsp_event); 1113 1114 int wm_adsp2_component_probe(struct wm_adsp *dsp, struct snd_soc_component *component) 1115 { 1116 char preload[32]; 1117 1118 if (!dsp->cs_dsp.no_core_startstop) { 1119 snprintf(preload, ARRAY_SIZE(preload), "%s Preload", dsp->cs_dsp.name); 1120 snd_soc_component_disable_pin(component, preload); 1121 } 1122 1123 cs_dsp_init_debugfs(&dsp->cs_dsp, component->debugfs_root); 1124 1125 dsp->component = component; 1126 1127 return 0; 1128 } 1129 EXPORT_SYMBOL_GPL(wm_adsp2_component_probe); 1130 1131 int wm_adsp2_component_remove(struct wm_adsp *dsp, struct snd_soc_component *component) 1132 { 1133 cs_dsp_cleanup_debugfs(&dsp->cs_dsp); 1134 1135 return 0; 1136 } 1137 EXPORT_SYMBOL_GPL(wm_adsp2_component_remove); 1138 1139 int wm_adsp2_init(struct wm_adsp *dsp) 1140 { 1141 int ret; 1142 1143 INIT_WORK(&dsp->boot_work, wm_adsp_boot_work); 1144 1145 dsp->sys_config_size = sizeof(struct wm_adsp_system_config_xm_hdr); 1146 dsp->cs_dsp.client_ops = &wm_adsp2_client_ops; 1147 1148 ret = cs_dsp_adsp2_init(&dsp->cs_dsp); 1149 if (ret) 1150 return ret; 1151 1152 return wm_adsp_common_init(dsp); 1153 } 1154 EXPORT_SYMBOL_GPL(wm_adsp2_init); 1155 1156 int wm_halo_init(struct wm_adsp *dsp) 1157 { 1158 int ret; 1159 1160 INIT_WORK(&dsp->boot_work, wm_adsp_boot_work); 1161 1162 dsp->sys_config_size = sizeof(struct wm_halo_system_config_xm_hdr); 1163 dsp->cs_dsp.client_ops = &wm_adsp2_client_ops; 1164 1165 ret = cs_dsp_halo_init(&dsp->cs_dsp); 1166 if (ret) 1167 return ret; 1168 1169 return wm_adsp_common_init(dsp); 1170 } 1171 EXPORT_SYMBOL_GPL(wm_halo_init); 1172 1173 void wm_adsp2_remove(struct wm_adsp *dsp) 1174 { 1175 cs_dsp_remove(&dsp->cs_dsp); 1176 } 1177 EXPORT_SYMBOL_GPL(wm_adsp2_remove); 1178 1179 static inline int wm_adsp_compr_attached(struct wm_adsp_compr *compr) 1180 { 1181 return compr->buf != NULL; 1182 } 1183 1184 static int wm_adsp_compr_attach(struct wm_adsp_compr *compr) 1185 { 1186 struct wm_adsp_compr_buf *buf = NULL, *tmp; 1187 1188 if (compr->dsp->fatal_error) 1189 return -EINVAL; 1190 1191 list_for_each_entry(tmp, &compr->dsp->buffer_list, list) { 1192 if (!tmp->name || !strcmp(compr->name, tmp->name)) { 1193 buf = tmp; 1194 break; 1195 } 1196 } 1197 1198 if (!buf) 1199 return -EINVAL; 1200 1201 compr->buf = buf; 1202 buf->compr = compr; 1203 1204 return 0; 1205 } 1206 1207 static void wm_adsp_compr_detach(struct wm_adsp_compr *compr) 1208 { 1209 if (!compr) 1210 return; 1211 1212 /* Wake the poll so it can see buffer is no longer attached */ 1213 if (compr->stream) 1214 snd_compr_fragment_elapsed(compr->stream); 1215 1216 if (wm_adsp_compr_attached(compr)) { 1217 compr->buf->compr = NULL; 1218 compr->buf = NULL; 1219 } 1220 } 1221 1222 int wm_adsp_compr_open(struct wm_adsp *dsp, struct snd_compr_stream *stream) 1223 { 1224 struct wm_adsp_compr *compr, *tmp; 1225 struct snd_soc_pcm_runtime *rtd = stream->private_data; 1226 int ret = 0; 1227 1228 mutex_lock(&dsp->cs_dsp.pwr_lock); 1229 1230 if (wm_adsp_fw[dsp->fw].num_caps == 0) { 1231 adsp_err(dsp, "%s: Firmware does not support compressed API\n", 1232 asoc_rtd_to_codec(rtd, 0)->name); 1233 ret = -ENXIO; 1234 goto out; 1235 } 1236 1237 if (wm_adsp_fw[dsp->fw].compr_direction != stream->direction) { 1238 adsp_err(dsp, "%s: Firmware does not support stream direction\n", 1239 asoc_rtd_to_codec(rtd, 0)->name); 1240 ret = -EINVAL; 1241 goto out; 1242 } 1243 1244 list_for_each_entry(tmp, &dsp->compr_list, list) { 1245 if (!strcmp(tmp->name, asoc_rtd_to_codec(rtd, 0)->name)) { 1246 adsp_err(dsp, "%s: Only a single stream supported per dai\n", 1247 asoc_rtd_to_codec(rtd, 0)->name); 1248 ret = -EBUSY; 1249 goto out; 1250 } 1251 } 1252 1253 compr = kzalloc(sizeof(*compr), GFP_KERNEL); 1254 if (!compr) { 1255 ret = -ENOMEM; 1256 goto out; 1257 } 1258 1259 compr->dsp = dsp; 1260 compr->stream = stream; 1261 compr->name = asoc_rtd_to_codec(rtd, 0)->name; 1262 1263 list_add_tail(&compr->list, &dsp->compr_list); 1264 1265 stream->runtime->private_data = compr; 1266 1267 out: 1268 mutex_unlock(&dsp->cs_dsp.pwr_lock); 1269 1270 return ret; 1271 } 1272 EXPORT_SYMBOL_GPL(wm_adsp_compr_open); 1273 1274 int wm_adsp_compr_free(struct snd_soc_component *component, 1275 struct snd_compr_stream *stream) 1276 { 1277 struct wm_adsp_compr *compr = stream->runtime->private_data; 1278 struct wm_adsp *dsp = compr->dsp; 1279 1280 mutex_lock(&dsp->cs_dsp.pwr_lock); 1281 1282 wm_adsp_compr_detach(compr); 1283 list_del(&compr->list); 1284 1285 kfree(compr->raw_buf); 1286 kfree(compr); 1287 1288 mutex_unlock(&dsp->cs_dsp.pwr_lock); 1289 1290 return 0; 1291 } 1292 EXPORT_SYMBOL_GPL(wm_adsp_compr_free); 1293 1294 static int wm_adsp_compr_check_params(struct snd_compr_stream *stream, 1295 struct snd_compr_params *params) 1296 { 1297 struct wm_adsp_compr *compr = stream->runtime->private_data; 1298 struct wm_adsp *dsp = compr->dsp; 1299 const struct wm_adsp_fw_caps *caps; 1300 const struct snd_codec_desc *desc; 1301 int i, j; 1302 1303 if (params->buffer.fragment_size < WM_ADSP_MIN_FRAGMENT_SIZE || 1304 params->buffer.fragment_size > WM_ADSP_MAX_FRAGMENT_SIZE || 1305 params->buffer.fragments < WM_ADSP_MIN_FRAGMENTS || 1306 params->buffer.fragments > WM_ADSP_MAX_FRAGMENTS || 1307 params->buffer.fragment_size % CS_DSP_DATA_WORD_SIZE) { 1308 compr_err(compr, "Invalid buffer fragsize=%d fragments=%d\n", 1309 params->buffer.fragment_size, 1310 params->buffer.fragments); 1311 1312 return -EINVAL; 1313 } 1314 1315 for (i = 0; i < wm_adsp_fw[dsp->fw].num_caps; i++) { 1316 caps = &wm_adsp_fw[dsp->fw].caps[i]; 1317 desc = &caps->desc; 1318 1319 if (caps->id != params->codec.id) 1320 continue; 1321 1322 if (stream->direction == SND_COMPRESS_PLAYBACK) { 1323 if (desc->max_ch < params->codec.ch_out) 1324 continue; 1325 } else { 1326 if (desc->max_ch < params->codec.ch_in) 1327 continue; 1328 } 1329 1330 if (!(desc->formats & (1 << params->codec.format))) 1331 continue; 1332 1333 for (j = 0; j < desc->num_sample_rates; ++j) 1334 if (desc->sample_rates[j] == params->codec.sample_rate) 1335 return 0; 1336 } 1337 1338 compr_err(compr, "Invalid params id=%u ch=%u,%u rate=%u fmt=%u\n", 1339 params->codec.id, params->codec.ch_in, params->codec.ch_out, 1340 params->codec.sample_rate, params->codec.format); 1341 return -EINVAL; 1342 } 1343 1344 static inline unsigned int wm_adsp_compr_frag_words(struct wm_adsp_compr *compr) 1345 { 1346 return compr->size.fragment_size / CS_DSP_DATA_WORD_SIZE; 1347 } 1348 1349 int wm_adsp_compr_set_params(struct snd_soc_component *component, 1350 struct snd_compr_stream *stream, 1351 struct snd_compr_params *params) 1352 { 1353 struct wm_adsp_compr *compr = stream->runtime->private_data; 1354 unsigned int size; 1355 int ret; 1356 1357 ret = wm_adsp_compr_check_params(stream, params); 1358 if (ret) 1359 return ret; 1360 1361 compr->size = params->buffer; 1362 1363 compr_dbg(compr, "fragment_size=%d fragments=%d\n", 1364 compr->size.fragment_size, compr->size.fragments); 1365 1366 size = wm_adsp_compr_frag_words(compr) * sizeof(*compr->raw_buf); 1367 compr->raw_buf = kmalloc(size, GFP_DMA | GFP_KERNEL); 1368 if (!compr->raw_buf) 1369 return -ENOMEM; 1370 1371 compr->sample_rate = params->codec.sample_rate; 1372 1373 return 0; 1374 } 1375 EXPORT_SYMBOL_GPL(wm_adsp_compr_set_params); 1376 1377 int wm_adsp_compr_get_caps(struct snd_soc_component *component, 1378 struct snd_compr_stream *stream, 1379 struct snd_compr_caps *caps) 1380 { 1381 struct wm_adsp_compr *compr = stream->runtime->private_data; 1382 int fw = compr->dsp->fw; 1383 int i; 1384 1385 if (wm_adsp_fw[fw].caps) { 1386 for (i = 0; i < wm_adsp_fw[fw].num_caps; i++) 1387 caps->codecs[i] = wm_adsp_fw[fw].caps[i].id; 1388 1389 caps->num_codecs = i; 1390 caps->direction = wm_adsp_fw[fw].compr_direction; 1391 1392 caps->min_fragment_size = WM_ADSP_MIN_FRAGMENT_SIZE; 1393 caps->max_fragment_size = WM_ADSP_MAX_FRAGMENT_SIZE; 1394 caps->min_fragments = WM_ADSP_MIN_FRAGMENTS; 1395 caps->max_fragments = WM_ADSP_MAX_FRAGMENTS; 1396 } 1397 1398 return 0; 1399 } 1400 EXPORT_SYMBOL_GPL(wm_adsp_compr_get_caps); 1401 1402 static inline int wm_adsp_buffer_read(struct wm_adsp_compr_buf *buf, 1403 unsigned int field_offset, u32 *data) 1404 { 1405 return cs_dsp_read_data_word(&buf->dsp->cs_dsp, buf->host_buf_mem_type, 1406 buf->host_buf_ptr + field_offset, data); 1407 } 1408 1409 static inline int wm_adsp_buffer_write(struct wm_adsp_compr_buf *buf, 1410 unsigned int field_offset, u32 data) 1411 { 1412 return cs_dsp_write_data_word(&buf->dsp->cs_dsp, buf->host_buf_mem_type, 1413 buf->host_buf_ptr + field_offset, 1414 data); 1415 } 1416 1417 static int wm_adsp_buffer_populate(struct wm_adsp_compr_buf *buf) 1418 { 1419 const struct wm_adsp_fw_caps *caps = wm_adsp_fw[buf->dsp->fw].caps; 1420 struct wm_adsp_buffer_region *region; 1421 u32 offset = 0; 1422 int i, ret; 1423 1424 buf->regions = kcalloc(caps->num_regions, sizeof(*buf->regions), 1425 GFP_KERNEL); 1426 if (!buf->regions) 1427 return -ENOMEM; 1428 1429 for (i = 0; i < caps->num_regions; ++i) { 1430 region = &buf->regions[i]; 1431 1432 region->offset = offset; 1433 region->mem_type = caps->region_defs[i].mem_type; 1434 1435 ret = wm_adsp_buffer_read(buf, caps->region_defs[i].base_offset, 1436 ®ion->base_addr); 1437 if (ret < 0) 1438 return ret; 1439 1440 ret = wm_adsp_buffer_read(buf, caps->region_defs[i].size_offset, 1441 &offset); 1442 if (ret < 0) 1443 return ret; 1444 1445 region->cumulative_size = offset; 1446 1447 compr_dbg(buf, 1448 "region=%d type=%d base=%08x off=%08x size=%08x\n", 1449 i, region->mem_type, region->base_addr, 1450 region->offset, region->cumulative_size); 1451 } 1452 1453 return 0; 1454 } 1455 1456 static void wm_adsp_buffer_clear(struct wm_adsp_compr_buf *buf) 1457 { 1458 buf->irq_count = 0xFFFFFFFF; 1459 buf->read_index = -1; 1460 buf->avail = 0; 1461 } 1462 1463 static struct wm_adsp_compr_buf *wm_adsp_buffer_alloc(struct wm_adsp *dsp) 1464 { 1465 struct wm_adsp_compr_buf *buf; 1466 1467 buf = kzalloc(sizeof(*buf), GFP_KERNEL); 1468 if (!buf) 1469 return NULL; 1470 1471 buf->dsp = dsp; 1472 1473 wm_adsp_buffer_clear(buf); 1474 1475 return buf; 1476 } 1477 1478 static int wm_adsp_buffer_parse_legacy(struct wm_adsp *dsp) 1479 { 1480 struct cs_dsp_alg_region *alg_region; 1481 struct wm_adsp_compr_buf *buf; 1482 u32 xmalg, addr, magic; 1483 int i, ret; 1484 1485 alg_region = cs_dsp_find_alg_region(&dsp->cs_dsp, WMFW_ADSP2_XM, dsp->cs_dsp.fw_id); 1486 if (!alg_region) { 1487 adsp_err(dsp, "No algorithm region found\n"); 1488 return -EINVAL; 1489 } 1490 1491 xmalg = dsp->sys_config_size / sizeof(__be32); 1492 1493 addr = alg_region->base + xmalg + ALG_XM_FIELD(magic); 1494 ret = cs_dsp_read_data_word(&dsp->cs_dsp, WMFW_ADSP2_XM, addr, &magic); 1495 if (ret < 0) 1496 return ret; 1497 1498 if (magic != WM_ADSP_ALG_XM_STRUCT_MAGIC) 1499 return -ENODEV; 1500 1501 buf = wm_adsp_buffer_alloc(dsp); 1502 if (!buf) 1503 return -ENOMEM; 1504 1505 addr = alg_region->base + xmalg + ALG_XM_FIELD(host_buf_ptr); 1506 for (i = 0; i < 5; ++i) { 1507 ret = cs_dsp_read_data_word(&dsp->cs_dsp, WMFW_ADSP2_XM, addr, 1508 &buf->host_buf_ptr); 1509 if (ret < 0) 1510 goto err; 1511 1512 if (buf->host_buf_ptr) 1513 break; 1514 1515 usleep_range(1000, 2000); 1516 } 1517 1518 if (!buf->host_buf_ptr) { 1519 ret = -EIO; 1520 goto err; 1521 } 1522 1523 buf->host_buf_mem_type = WMFW_ADSP2_XM; 1524 1525 ret = wm_adsp_buffer_populate(buf); 1526 if (ret < 0) 1527 goto err; 1528 1529 list_add_tail(&buf->list, &dsp->buffer_list); 1530 1531 compr_dbg(buf, "legacy host_buf_ptr=%x\n", buf->host_buf_ptr); 1532 1533 return 0; 1534 1535 err: 1536 kfree(buf); 1537 1538 return ret; 1539 } 1540 1541 static int wm_adsp_buffer_parse_coeff(struct cs_dsp_coeff_ctl *cs_ctl) 1542 { 1543 struct wm_adsp_host_buf_coeff_v1 coeff_v1; 1544 struct wm_adsp_compr_buf *buf; 1545 struct wm_adsp *dsp = container_of(cs_ctl->dsp, struct wm_adsp, cs_dsp); 1546 unsigned int version = 0; 1547 int ret, i; 1548 1549 for (i = 0; i < 5; ++i) { 1550 ret = cs_dsp_coeff_read_ctrl(cs_ctl, 0, &coeff_v1, 1551 min(cs_ctl->len, sizeof(coeff_v1))); 1552 if (ret < 0) 1553 return ret; 1554 1555 if (coeff_v1.host_buf_ptr) 1556 break; 1557 1558 usleep_range(1000, 2000); 1559 } 1560 1561 if (!coeff_v1.host_buf_ptr) { 1562 adsp_err(dsp, "Failed to acquire host buffer\n"); 1563 return -EIO; 1564 } 1565 1566 buf = wm_adsp_buffer_alloc(dsp); 1567 if (!buf) 1568 return -ENOMEM; 1569 1570 buf->host_buf_mem_type = cs_ctl->alg_region.type; 1571 buf->host_buf_ptr = be32_to_cpu(coeff_v1.host_buf_ptr); 1572 1573 ret = wm_adsp_buffer_populate(buf); 1574 if (ret < 0) 1575 goto err; 1576 1577 /* 1578 * v0 host_buffer coefficients didn't have versioning, so if the 1579 * control is one word, assume version 0. 1580 */ 1581 if (cs_ctl->len == 4) 1582 goto done; 1583 1584 version = be32_to_cpu(coeff_v1.versions) & HOST_BUF_COEFF_COMPAT_VER_MASK; 1585 version >>= HOST_BUF_COEFF_COMPAT_VER_SHIFT; 1586 1587 if (version > HOST_BUF_COEFF_SUPPORTED_COMPAT_VER) { 1588 adsp_err(dsp, 1589 "Host buffer coeff ver %u > supported version %u\n", 1590 version, HOST_BUF_COEFF_SUPPORTED_COMPAT_VER); 1591 ret = -EINVAL; 1592 goto err; 1593 } 1594 1595 cs_dsp_remove_padding((u32 *)&coeff_v1.name, ARRAY_SIZE(coeff_v1.name)); 1596 1597 buf->name = kasprintf(GFP_KERNEL, "%s-dsp-%s", dsp->part, 1598 (char *)&coeff_v1.name); 1599 1600 done: 1601 list_add_tail(&buf->list, &dsp->buffer_list); 1602 1603 compr_dbg(buf, "host_buf_ptr=%x coeff version %u\n", 1604 buf->host_buf_ptr, version); 1605 1606 return version; 1607 1608 err: 1609 kfree(buf); 1610 1611 return ret; 1612 } 1613 1614 static int wm_adsp_buffer_init(struct wm_adsp *dsp) 1615 { 1616 struct cs_dsp_coeff_ctl *cs_ctl; 1617 int ret; 1618 1619 list_for_each_entry(cs_ctl, &dsp->cs_dsp.ctl_list, list) { 1620 if (cs_ctl->type != WMFW_CTL_TYPE_HOST_BUFFER) 1621 continue; 1622 1623 if (!cs_ctl->enabled) 1624 continue; 1625 1626 ret = wm_adsp_buffer_parse_coeff(cs_ctl); 1627 if (ret < 0) { 1628 adsp_err(dsp, "Failed to parse coeff: %d\n", ret); 1629 goto error; 1630 } else if (ret == 0) { 1631 /* Only one buffer supported for version 0 */ 1632 return 0; 1633 } 1634 } 1635 1636 if (list_empty(&dsp->buffer_list)) { 1637 /* Fall back to legacy support */ 1638 ret = wm_adsp_buffer_parse_legacy(dsp); 1639 if (ret == -ENODEV) 1640 adsp_info(dsp, "Legacy support not available\n"); 1641 else if (ret) 1642 adsp_warn(dsp, "Failed to parse legacy: %d\n", ret); 1643 } 1644 1645 return 0; 1646 1647 error: 1648 wm_adsp_buffer_free(dsp); 1649 return ret; 1650 } 1651 1652 static int wm_adsp_buffer_free(struct wm_adsp *dsp) 1653 { 1654 struct wm_adsp_compr_buf *buf, *tmp; 1655 1656 list_for_each_entry_safe(buf, tmp, &dsp->buffer_list, list) { 1657 wm_adsp_compr_detach(buf->compr); 1658 1659 kfree(buf->name); 1660 kfree(buf->regions); 1661 list_del(&buf->list); 1662 kfree(buf); 1663 } 1664 1665 return 0; 1666 } 1667 1668 static int wm_adsp_buffer_get_error(struct wm_adsp_compr_buf *buf) 1669 { 1670 int ret; 1671 1672 ret = wm_adsp_buffer_read(buf, HOST_BUFFER_FIELD(error), &buf->error); 1673 if (ret < 0) { 1674 compr_err(buf, "Failed to check buffer error: %d\n", ret); 1675 return ret; 1676 } 1677 if (buf->error != 0) { 1678 compr_err(buf, "Buffer error occurred: %d\n", buf->error); 1679 return -EIO; 1680 } 1681 1682 return 0; 1683 } 1684 1685 int wm_adsp_compr_trigger(struct snd_soc_component *component, 1686 struct snd_compr_stream *stream, int cmd) 1687 { 1688 struct wm_adsp_compr *compr = stream->runtime->private_data; 1689 struct wm_adsp *dsp = compr->dsp; 1690 int ret = 0; 1691 1692 compr_dbg(compr, "Trigger: %d\n", cmd); 1693 1694 mutex_lock(&dsp->cs_dsp.pwr_lock); 1695 1696 switch (cmd) { 1697 case SNDRV_PCM_TRIGGER_START: 1698 if (!wm_adsp_compr_attached(compr)) { 1699 ret = wm_adsp_compr_attach(compr); 1700 if (ret < 0) { 1701 compr_err(compr, "Failed to link buffer and stream: %d\n", 1702 ret); 1703 break; 1704 } 1705 } 1706 1707 ret = wm_adsp_buffer_get_error(compr->buf); 1708 if (ret < 0) 1709 break; 1710 1711 /* Trigger the IRQ at one fragment of data */ 1712 ret = wm_adsp_buffer_write(compr->buf, 1713 HOST_BUFFER_FIELD(high_water_mark), 1714 wm_adsp_compr_frag_words(compr)); 1715 if (ret < 0) { 1716 compr_err(compr, "Failed to set high water mark: %d\n", 1717 ret); 1718 break; 1719 } 1720 break; 1721 case SNDRV_PCM_TRIGGER_STOP: 1722 if (wm_adsp_compr_attached(compr)) 1723 wm_adsp_buffer_clear(compr->buf); 1724 break; 1725 default: 1726 ret = -EINVAL; 1727 break; 1728 } 1729 1730 mutex_unlock(&dsp->cs_dsp.pwr_lock); 1731 1732 return ret; 1733 } 1734 EXPORT_SYMBOL_GPL(wm_adsp_compr_trigger); 1735 1736 static inline int wm_adsp_buffer_size(struct wm_adsp_compr_buf *buf) 1737 { 1738 int last_region = wm_adsp_fw[buf->dsp->fw].caps->num_regions - 1; 1739 1740 return buf->regions[last_region].cumulative_size; 1741 } 1742 1743 static int wm_adsp_buffer_update_avail(struct wm_adsp_compr_buf *buf) 1744 { 1745 u32 next_read_index, next_write_index; 1746 int write_index, read_index, avail; 1747 int ret; 1748 1749 /* Only sync read index if we haven't already read a valid index */ 1750 if (buf->read_index < 0) { 1751 ret = wm_adsp_buffer_read(buf, 1752 HOST_BUFFER_FIELD(next_read_index), 1753 &next_read_index); 1754 if (ret < 0) 1755 return ret; 1756 1757 read_index = sign_extend32(next_read_index, 23); 1758 1759 if (read_index < 0) { 1760 compr_dbg(buf, "Avail check on unstarted stream\n"); 1761 return 0; 1762 } 1763 1764 buf->read_index = read_index; 1765 } 1766 1767 ret = wm_adsp_buffer_read(buf, HOST_BUFFER_FIELD(next_write_index), 1768 &next_write_index); 1769 if (ret < 0) 1770 return ret; 1771 1772 write_index = sign_extend32(next_write_index, 23); 1773 1774 avail = write_index - buf->read_index; 1775 if (avail < 0) 1776 avail += wm_adsp_buffer_size(buf); 1777 1778 compr_dbg(buf, "readindex=0x%x, writeindex=0x%x, avail=%d\n", 1779 buf->read_index, write_index, avail * CS_DSP_DATA_WORD_SIZE); 1780 1781 buf->avail = avail; 1782 1783 return 0; 1784 } 1785 1786 int wm_adsp_compr_handle_irq(struct wm_adsp *dsp) 1787 { 1788 struct wm_adsp_compr_buf *buf; 1789 struct wm_adsp_compr *compr; 1790 int ret = 0; 1791 1792 mutex_lock(&dsp->cs_dsp.pwr_lock); 1793 1794 if (list_empty(&dsp->buffer_list)) { 1795 ret = -ENODEV; 1796 goto out; 1797 } 1798 1799 adsp_dbg(dsp, "Handling buffer IRQ\n"); 1800 1801 list_for_each_entry(buf, &dsp->buffer_list, list) { 1802 compr = buf->compr; 1803 1804 ret = wm_adsp_buffer_get_error(buf); 1805 if (ret < 0) 1806 goto out_notify; /* Wake poll to report error */ 1807 1808 ret = wm_adsp_buffer_read(buf, HOST_BUFFER_FIELD(irq_count), 1809 &buf->irq_count); 1810 if (ret < 0) { 1811 compr_err(buf, "Failed to get irq_count: %d\n", ret); 1812 goto out; 1813 } 1814 1815 ret = wm_adsp_buffer_update_avail(buf); 1816 if (ret < 0) { 1817 compr_err(buf, "Error reading avail: %d\n", ret); 1818 goto out; 1819 } 1820 1821 if (wm_adsp_fw[dsp->fw].voice_trigger && buf->irq_count == 2) 1822 ret = WM_ADSP_COMPR_VOICE_TRIGGER; 1823 1824 out_notify: 1825 if (compr && compr->stream) 1826 snd_compr_fragment_elapsed(compr->stream); 1827 } 1828 1829 out: 1830 mutex_unlock(&dsp->cs_dsp.pwr_lock); 1831 1832 return ret; 1833 } 1834 EXPORT_SYMBOL_GPL(wm_adsp_compr_handle_irq); 1835 1836 static int wm_adsp_buffer_reenable_irq(struct wm_adsp_compr_buf *buf) 1837 { 1838 if (buf->irq_count & 0x01) 1839 return 0; 1840 1841 compr_dbg(buf, "Enable IRQ(0x%x) for next fragment\n", buf->irq_count); 1842 1843 buf->irq_count |= 0x01; 1844 1845 return wm_adsp_buffer_write(buf, HOST_BUFFER_FIELD(irq_ack), 1846 buf->irq_count); 1847 } 1848 1849 int wm_adsp_compr_pointer(struct snd_soc_component *component, 1850 struct snd_compr_stream *stream, 1851 struct snd_compr_tstamp *tstamp) 1852 { 1853 struct wm_adsp_compr *compr = stream->runtime->private_data; 1854 struct wm_adsp *dsp = compr->dsp; 1855 struct wm_adsp_compr_buf *buf; 1856 int ret = 0; 1857 1858 compr_dbg(compr, "Pointer request\n"); 1859 1860 mutex_lock(&dsp->cs_dsp.pwr_lock); 1861 1862 buf = compr->buf; 1863 1864 if (dsp->fatal_error || !buf || buf->error) { 1865 snd_compr_stop_error(stream, SNDRV_PCM_STATE_XRUN); 1866 ret = -EIO; 1867 goto out; 1868 } 1869 1870 if (buf->avail < wm_adsp_compr_frag_words(compr)) { 1871 ret = wm_adsp_buffer_update_avail(buf); 1872 if (ret < 0) { 1873 compr_err(compr, "Error reading avail: %d\n", ret); 1874 goto out; 1875 } 1876 1877 /* 1878 * If we really have less than 1 fragment available tell the 1879 * DSP to inform us once a whole fragment is available. 1880 */ 1881 if (buf->avail < wm_adsp_compr_frag_words(compr)) { 1882 ret = wm_adsp_buffer_get_error(buf); 1883 if (ret < 0) { 1884 if (buf->error) 1885 snd_compr_stop_error(stream, 1886 SNDRV_PCM_STATE_XRUN); 1887 goto out; 1888 } 1889 1890 ret = wm_adsp_buffer_reenable_irq(buf); 1891 if (ret < 0) { 1892 compr_err(compr, "Failed to re-enable buffer IRQ: %d\n", 1893 ret); 1894 goto out; 1895 } 1896 } 1897 } 1898 1899 tstamp->copied_total = compr->copied_total; 1900 tstamp->copied_total += buf->avail * CS_DSP_DATA_WORD_SIZE; 1901 tstamp->sampling_rate = compr->sample_rate; 1902 1903 out: 1904 mutex_unlock(&dsp->cs_dsp.pwr_lock); 1905 1906 return ret; 1907 } 1908 EXPORT_SYMBOL_GPL(wm_adsp_compr_pointer); 1909 1910 static int wm_adsp_buffer_capture_block(struct wm_adsp_compr *compr, int target) 1911 { 1912 struct wm_adsp_compr_buf *buf = compr->buf; 1913 unsigned int adsp_addr; 1914 int mem_type, nwords, max_read; 1915 int i, ret; 1916 1917 /* Calculate read parameters */ 1918 for (i = 0; i < wm_adsp_fw[buf->dsp->fw].caps->num_regions; ++i) 1919 if (buf->read_index < buf->regions[i].cumulative_size) 1920 break; 1921 1922 if (i == wm_adsp_fw[buf->dsp->fw].caps->num_regions) 1923 return -EINVAL; 1924 1925 mem_type = buf->regions[i].mem_type; 1926 adsp_addr = buf->regions[i].base_addr + 1927 (buf->read_index - buf->regions[i].offset); 1928 1929 max_read = wm_adsp_compr_frag_words(compr); 1930 nwords = buf->regions[i].cumulative_size - buf->read_index; 1931 1932 if (nwords > target) 1933 nwords = target; 1934 if (nwords > buf->avail) 1935 nwords = buf->avail; 1936 if (nwords > max_read) 1937 nwords = max_read; 1938 if (!nwords) 1939 return 0; 1940 1941 /* Read data from DSP */ 1942 ret = cs_dsp_read_raw_data_block(&buf->dsp->cs_dsp, mem_type, adsp_addr, 1943 nwords, (__be32 *)compr->raw_buf); 1944 if (ret < 0) 1945 return ret; 1946 1947 cs_dsp_remove_padding(compr->raw_buf, nwords); 1948 1949 /* update read index to account for words read */ 1950 buf->read_index += nwords; 1951 if (buf->read_index == wm_adsp_buffer_size(buf)) 1952 buf->read_index = 0; 1953 1954 ret = wm_adsp_buffer_write(buf, HOST_BUFFER_FIELD(next_read_index), 1955 buf->read_index); 1956 if (ret < 0) 1957 return ret; 1958 1959 /* update avail to account for words read */ 1960 buf->avail -= nwords; 1961 1962 return nwords; 1963 } 1964 1965 static int wm_adsp_compr_read(struct wm_adsp_compr *compr, 1966 char __user *buf, size_t count) 1967 { 1968 struct wm_adsp *dsp = compr->dsp; 1969 int ntotal = 0; 1970 int nwords, nbytes; 1971 1972 compr_dbg(compr, "Requested read of %zu bytes\n", count); 1973 1974 if (dsp->fatal_error || !compr->buf || compr->buf->error) { 1975 snd_compr_stop_error(compr->stream, SNDRV_PCM_STATE_XRUN); 1976 return -EIO; 1977 } 1978 1979 count /= CS_DSP_DATA_WORD_SIZE; 1980 1981 do { 1982 nwords = wm_adsp_buffer_capture_block(compr, count); 1983 if (nwords < 0) { 1984 compr_err(compr, "Failed to capture block: %d\n", 1985 nwords); 1986 return nwords; 1987 } 1988 1989 nbytes = nwords * CS_DSP_DATA_WORD_SIZE; 1990 1991 compr_dbg(compr, "Read %d bytes\n", nbytes); 1992 1993 if (copy_to_user(buf + ntotal, compr->raw_buf, nbytes)) { 1994 compr_err(compr, "Failed to copy data to user: %d, %d\n", 1995 ntotal, nbytes); 1996 return -EFAULT; 1997 } 1998 1999 count -= nwords; 2000 ntotal += nbytes; 2001 } while (nwords > 0 && count > 0); 2002 2003 compr->copied_total += ntotal; 2004 2005 return ntotal; 2006 } 2007 2008 int wm_adsp_compr_copy(struct snd_soc_component *component, 2009 struct snd_compr_stream *stream, char __user *buf, 2010 size_t count) 2011 { 2012 struct wm_adsp_compr *compr = stream->runtime->private_data; 2013 struct wm_adsp *dsp = compr->dsp; 2014 int ret; 2015 2016 mutex_lock(&dsp->cs_dsp.pwr_lock); 2017 2018 if (stream->direction == SND_COMPRESS_CAPTURE) 2019 ret = wm_adsp_compr_read(compr, buf, count); 2020 else 2021 ret = -ENOTSUPP; 2022 2023 mutex_unlock(&dsp->cs_dsp.pwr_lock); 2024 2025 return ret; 2026 } 2027 EXPORT_SYMBOL_GPL(wm_adsp_compr_copy); 2028 2029 static void wm_adsp_fatal_error(struct cs_dsp *cs_dsp) 2030 { 2031 struct wm_adsp *dsp = container_of(cs_dsp, struct wm_adsp, cs_dsp); 2032 struct wm_adsp_compr *compr; 2033 2034 dsp->fatal_error = true; 2035 2036 list_for_each_entry(compr, &dsp->compr_list, list) { 2037 if (compr->stream) 2038 snd_compr_fragment_elapsed(compr->stream); 2039 } 2040 } 2041 2042 irqreturn_t wm_adsp2_bus_error(int irq, void *data) 2043 { 2044 struct wm_adsp *dsp = (struct wm_adsp *)data; 2045 2046 cs_dsp_adsp2_bus_error(&dsp->cs_dsp); 2047 2048 return IRQ_HANDLED; 2049 } 2050 EXPORT_SYMBOL_GPL(wm_adsp2_bus_error); 2051 2052 irqreturn_t wm_halo_bus_error(int irq, void *data) 2053 { 2054 struct wm_adsp *dsp = (struct wm_adsp *)data; 2055 2056 cs_dsp_halo_bus_error(&dsp->cs_dsp); 2057 2058 return IRQ_HANDLED; 2059 } 2060 EXPORT_SYMBOL_GPL(wm_halo_bus_error); 2061 2062 irqreturn_t wm_halo_wdt_expire(int irq, void *data) 2063 { 2064 struct wm_adsp *dsp = data; 2065 2066 cs_dsp_halo_wdt_expire(&dsp->cs_dsp); 2067 2068 return IRQ_HANDLED; 2069 } 2070 EXPORT_SYMBOL_GPL(wm_halo_wdt_expire); 2071 2072 static const struct cs_dsp_client_ops wm_adsp1_client_ops = { 2073 .control_add = wm_adsp_control_add, 2074 .control_remove = wm_adsp_control_remove, 2075 }; 2076 2077 static const struct cs_dsp_client_ops wm_adsp2_client_ops = { 2078 .control_add = wm_adsp_control_add, 2079 .control_remove = wm_adsp_control_remove, 2080 .pre_run = wm_adsp_pre_run, 2081 .post_run = wm_adsp_event_post_run, 2082 .post_stop = wm_adsp_event_post_stop, 2083 .watchdog_expired = wm_adsp_fatal_error, 2084 }; 2085 2086 MODULE_LICENSE("GPL v2"); 2087 MODULE_IMPORT_NS(FW_CS_DSP); 2088