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