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/array_size.h> 11 #include <linux/ctype.h> 12 #include <linux/module.h> 13 #include <linux/moduleparam.h> 14 #include <linux/init.h> 15 #include <linux/delay.h> 16 #include <linux/firmware.h> 17 #include <linux/list.h> 18 #include <linux/pm.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; 407 408 return cs_dsp_coeff_lock_and_write_ctrl(cs_ctl, 0, p, cs_ctl->len); 409 } 410 411 static int wm_coeff_tlv_put(struct snd_kcontrol *kctl, 412 const unsigned int __user *bytes, unsigned int size) 413 { 414 struct soc_bytes_ext *bytes_ext = 415 (struct soc_bytes_ext *)kctl->private_value; 416 struct wm_coeff_ctl *ctl = bytes_ext_to_ctl(bytes_ext); 417 struct cs_dsp_coeff_ctl *cs_ctl = ctl->cs_ctl; 418 void *scratch; 419 int ret = 0; 420 421 scratch = vmalloc(size); 422 if (!scratch) 423 return -ENOMEM; 424 425 if (copy_from_user(scratch, bytes, size)) 426 ret = -EFAULT; 427 else 428 ret = cs_dsp_coeff_lock_and_write_ctrl(cs_ctl, 0, scratch, size); 429 430 vfree(scratch); 431 432 return ret; 433 } 434 435 static int wm_coeff_put_acked(struct snd_kcontrol *kctl, 436 struct snd_ctl_elem_value *ucontrol) 437 { 438 struct soc_bytes_ext *bytes_ext = 439 (struct soc_bytes_ext *)kctl->private_value; 440 struct wm_coeff_ctl *ctl = bytes_ext_to_ctl(bytes_ext); 441 struct cs_dsp_coeff_ctl *cs_ctl = ctl->cs_ctl; 442 unsigned int val = ucontrol->value.integer.value[0]; 443 int ret; 444 445 if (val == 0) 446 return 0; /* 0 means no event */ 447 448 mutex_lock(&cs_ctl->dsp->pwr_lock); 449 450 if (cs_ctl->enabled) 451 ret = cs_dsp_coeff_write_acked_control(cs_ctl, val); 452 else 453 ret = -EPERM; 454 455 mutex_unlock(&cs_ctl->dsp->pwr_lock); 456 457 if (ret < 0) 458 return ret; 459 460 return 1; 461 } 462 463 static int wm_coeff_get(struct snd_kcontrol *kctl, 464 struct snd_ctl_elem_value *ucontrol) 465 { 466 struct soc_bytes_ext *bytes_ext = 467 (struct soc_bytes_ext *)kctl->private_value; 468 struct wm_coeff_ctl *ctl = bytes_ext_to_ctl(bytes_ext); 469 struct cs_dsp_coeff_ctl *cs_ctl = ctl->cs_ctl; 470 char *p = ucontrol->value.bytes.data; 471 472 return cs_dsp_coeff_lock_and_read_ctrl(cs_ctl, 0, p, cs_ctl->len); 473 } 474 475 static int wm_coeff_tlv_get(struct snd_kcontrol *kctl, 476 unsigned int __user *bytes, unsigned int size) 477 { 478 struct soc_bytes_ext *bytes_ext = 479 (struct soc_bytes_ext *)kctl->private_value; 480 struct wm_coeff_ctl *ctl = bytes_ext_to_ctl(bytes_ext); 481 struct cs_dsp_coeff_ctl *cs_ctl = ctl->cs_ctl; 482 int ret = 0; 483 484 mutex_lock(&cs_ctl->dsp->pwr_lock); 485 486 ret = cs_dsp_coeff_read_ctrl(cs_ctl, 0, cs_ctl->cache, size); 487 488 if (!ret && copy_to_user(bytes, cs_ctl->cache, size)) 489 ret = -EFAULT; 490 491 mutex_unlock(&cs_ctl->dsp->pwr_lock); 492 493 return ret; 494 } 495 496 static int wm_coeff_get_acked(struct snd_kcontrol *kcontrol, 497 struct snd_ctl_elem_value *ucontrol) 498 { 499 /* 500 * Although it's not useful to read an acked control, we must satisfy 501 * user-side assumptions that all controls are readable and that a 502 * write of the same value should be filtered out (it's valid to send 503 * the same event number again to the firmware). We therefore return 0, 504 * meaning "no event" so valid event numbers will always be a change 505 */ 506 ucontrol->value.integer.value[0] = 0; 507 508 return 0; 509 } 510 511 static unsigned int wmfw_convert_flags(unsigned int in, unsigned int len) 512 { 513 unsigned int out, rd, wr, vol; 514 515 if (len > ADSP_MAX_STD_CTRL_SIZE) { 516 rd = SNDRV_CTL_ELEM_ACCESS_TLV_READ; 517 wr = SNDRV_CTL_ELEM_ACCESS_TLV_WRITE; 518 vol = SNDRV_CTL_ELEM_ACCESS_VOLATILE; 519 520 out = SNDRV_CTL_ELEM_ACCESS_TLV_CALLBACK; 521 } else { 522 rd = SNDRV_CTL_ELEM_ACCESS_READ; 523 wr = SNDRV_CTL_ELEM_ACCESS_WRITE; 524 vol = SNDRV_CTL_ELEM_ACCESS_VOLATILE; 525 526 out = 0; 527 } 528 529 if (in) { 530 out |= rd; 531 if (in & WMFW_CTL_FLAG_WRITEABLE) 532 out |= wr; 533 if (in & WMFW_CTL_FLAG_VOLATILE) 534 out |= vol; 535 } else { 536 out |= rd | wr | vol; 537 } 538 539 return out; 540 } 541 542 static void wm_adsp_ctl_work(struct work_struct *work) 543 { 544 struct wm_coeff_ctl *ctl = container_of(work, 545 struct wm_coeff_ctl, 546 work); 547 struct cs_dsp_coeff_ctl *cs_ctl = ctl->cs_ctl; 548 struct wm_adsp *dsp = container_of(cs_ctl->dsp, 549 struct wm_adsp, 550 cs_dsp); 551 struct snd_kcontrol_new *kcontrol; 552 553 kcontrol = kzalloc(sizeof(*kcontrol), GFP_KERNEL); 554 if (!kcontrol) 555 return; 556 557 kcontrol->name = ctl->name; 558 kcontrol->info = wm_coeff_info; 559 kcontrol->iface = SNDRV_CTL_ELEM_IFACE_MIXER; 560 kcontrol->tlv.c = snd_soc_bytes_tlv_callback; 561 kcontrol->private_value = (unsigned long)&ctl->bytes_ext; 562 kcontrol->access = wmfw_convert_flags(cs_ctl->flags, cs_ctl->len); 563 564 switch (cs_ctl->type) { 565 case WMFW_CTL_TYPE_ACKED: 566 kcontrol->get = wm_coeff_get_acked; 567 kcontrol->put = wm_coeff_put_acked; 568 break; 569 default: 570 if (kcontrol->access & SNDRV_CTL_ELEM_ACCESS_TLV_CALLBACK) { 571 ctl->bytes_ext.max = cs_ctl->len; 572 ctl->bytes_ext.get = wm_coeff_tlv_get; 573 ctl->bytes_ext.put = wm_coeff_tlv_put; 574 } else { 575 kcontrol->get = wm_coeff_get; 576 kcontrol->put = wm_coeff_put; 577 } 578 break; 579 } 580 581 snd_soc_add_component_controls(dsp->component, kcontrol, 1); 582 583 kfree(kcontrol); 584 } 585 586 static int wm_adsp_control_add(struct cs_dsp_coeff_ctl *cs_ctl) 587 { 588 struct wm_adsp *dsp = container_of(cs_ctl->dsp, struct wm_adsp, cs_dsp); 589 struct cs_dsp *cs_dsp = &dsp->cs_dsp; 590 struct wm_coeff_ctl *ctl; 591 char name[SNDRV_CTL_ELEM_ID_NAME_MAXLEN]; 592 const char *region_name; 593 int ret; 594 595 if (cs_ctl->flags & WMFW_CTL_FLAG_SYS) 596 return 0; 597 598 region_name = cs_dsp_mem_region_name(cs_ctl->alg_region.type); 599 if (!region_name) { 600 adsp_err(dsp, "Unknown region type: %d\n", cs_ctl->alg_region.type); 601 return -EINVAL; 602 } 603 604 switch (cs_dsp->wmfw_ver) { 605 case 0: 606 case 1: 607 ret = scnprintf(name, SNDRV_CTL_ELEM_ID_NAME_MAXLEN, 608 "%s %s %x", cs_dsp->name, region_name, 609 cs_ctl->alg_region.alg); 610 break; 611 case 2: 612 ret = scnprintf(name, SNDRV_CTL_ELEM_ID_NAME_MAXLEN, 613 "%s%c %.12s %x", cs_dsp->name, *region_name, 614 wm_adsp_fw_text[dsp->fw], cs_ctl->alg_region.alg); 615 break; 616 default: 617 ret = scnprintf(name, SNDRV_CTL_ELEM_ID_NAME_MAXLEN, 618 "%s %.12s %x", cs_dsp->name, 619 wm_adsp_fw_text[dsp->fw], cs_ctl->alg_region.alg); 620 break; 621 } 622 623 if (cs_ctl->subname) { 624 int avail = SNDRV_CTL_ELEM_ID_NAME_MAXLEN - ret - 2; 625 int skip = 0; 626 627 if (dsp->component->name_prefix) 628 avail -= strlen(dsp->component->name_prefix) + 1; 629 630 /* Truncate the subname from the start if it is too long */ 631 if (cs_ctl->subname_len > avail) 632 skip = cs_ctl->subname_len - avail; 633 634 snprintf(name + ret, SNDRV_CTL_ELEM_ID_NAME_MAXLEN - ret, 635 " %.*s", cs_ctl->subname_len - skip, cs_ctl->subname + skip); 636 } 637 638 ctl = kzalloc(sizeof(*ctl), GFP_KERNEL); 639 if (!ctl) 640 return -ENOMEM; 641 ctl->cs_ctl = cs_ctl; 642 643 ctl->name = kmemdup(name, strlen(name) + 1, GFP_KERNEL); 644 if (!ctl->name) { 645 ret = -ENOMEM; 646 goto err_ctl; 647 } 648 649 cs_ctl->priv = ctl; 650 651 INIT_WORK(&ctl->work, wm_adsp_ctl_work); 652 schedule_work(&ctl->work); 653 654 return 0; 655 656 err_ctl: 657 kfree(ctl); 658 659 return ret; 660 } 661 662 static void wm_adsp_control_remove(struct cs_dsp_coeff_ctl *cs_ctl) 663 { 664 struct wm_coeff_ctl *ctl = cs_ctl->priv; 665 666 cancel_work_sync(&ctl->work); 667 668 kfree(ctl->name); 669 kfree(ctl); 670 } 671 672 int wm_adsp_write_ctl(struct wm_adsp *dsp, const char *name, int type, 673 unsigned int alg, void *buf, size_t len) 674 { 675 struct cs_dsp_coeff_ctl *cs_ctl; 676 int ret; 677 678 mutex_lock(&dsp->cs_dsp.pwr_lock); 679 cs_ctl = cs_dsp_get_ctl(&dsp->cs_dsp, name, type, alg); 680 ret = cs_dsp_coeff_write_ctrl(cs_ctl, 0, buf, len); 681 mutex_unlock(&dsp->cs_dsp.pwr_lock); 682 683 if (ret < 0) 684 return ret; 685 686 return 0; 687 } 688 EXPORT_SYMBOL_GPL(wm_adsp_write_ctl); 689 690 int wm_adsp_read_ctl(struct wm_adsp *dsp, const char *name, int type, 691 unsigned int alg, void *buf, size_t len) 692 { 693 int ret; 694 695 mutex_lock(&dsp->cs_dsp.pwr_lock); 696 ret = cs_dsp_coeff_read_ctrl(cs_dsp_get_ctl(&dsp->cs_dsp, name, type, alg), 697 0, buf, len); 698 mutex_unlock(&dsp->cs_dsp.pwr_lock); 699 700 return ret; 701 } 702 EXPORT_SYMBOL_GPL(wm_adsp_read_ctl); 703 704 static void wm_adsp_release_firmware_files(struct wm_adsp *dsp, 705 const struct firmware *wmfw_firmware, 706 char *wmfw_filename, 707 const struct firmware *coeff_firmware, 708 char *coeff_filename) 709 { 710 if (wmfw_firmware) 711 release_firmware(wmfw_firmware); 712 kfree(wmfw_filename); 713 714 if (coeff_firmware) 715 release_firmware(coeff_firmware); 716 kfree(coeff_filename); 717 } 718 719 static int wm_adsp_request_firmware_file(struct wm_adsp *dsp, 720 const struct firmware **firmware, char **filename, 721 const char *dir, const char *system_name, 722 const char *asoc_component_prefix, 723 const char *filetype) 724 { 725 struct cs_dsp *cs_dsp = &dsp->cs_dsp; 726 const char *fwf; 727 char *s, c; 728 int ret = 0; 729 730 if (dsp->fwf_name) 731 fwf = dsp->fwf_name; 732 else 733 fwf = dsp->cs_dsp.name; 734 735 if (system_name && asoc_component_prefix) 736 *filename = kasprintf(GFP_KERNEL, "%s%s-%s-%s-%s-%s.%s", dir, dsp->part, 737 fwf, wm_adsp_fw[dsp->fw].file, system_name, 738 asoc_component_prefix, filetype); 739 else if (system_name) 740 *filename = kasprintf(GFP_KERNEL, "%s%s-%s-%s-%s.%s", dir, dsp->part, 741 fwf, wm_adsp_fw[dsp->fw].file, system_name, 742 filetype); 743 else 744 *filename = kasprintf(GFP_KERNEL, "%s%s-%s-%s.%s", dir, dsp->part, fwf, 745 wm_adsp_fw[dsp->fw].file, filetype); 746 747 if (*filename == NULL) 748 return -ENOMEM; 749 750 /* 751 * Make sure that filename is lower-case and any non alpha-numeric 752 * characters except full stop and forward slash are replaced with 753 * hyphens. 754 */ 755 s = *filename; 756 while (*s) { 757 c = *s; 758 if (isalnum(c)) 759 *s = tolower(c); 760 else if ((c != '.') && (c != '/')) 761 *s = '-'; 762 s++; 763 } 764 765 ret = firmware_request_nowarn(firmware, *filename, cs_dsp->dev); 766 if (ret != 0) { 767 adsp_dbg(dsp, "Failed to request '%s'\n", *filename); 768 kfree(*filename); 769 *filename = NULL; 770 } else { 771 adsp_dbg(dsp, "Found '%s'\n", *filename); 772 } 773 774 return ret; 775 } 776 777 static const char *cirrus_dir = "cirrus/"; 778 static int wm_adsp_request_firmware_files(struct wm_adsp *dsp, 779 const struct firmware **wmfw_firmware, 780 char **wmfw_filename, 781 const struct firmware **coeff_firmware, 782 char **coeff_filename) 783 { 784 const char *system_name = dsp->system_name; 785 const char *asoc_component_prefix = dsp->component->name_prefix; 786 int ret = 0; 787 788 if (system_name && asoc_component_prefix) { 789 if (!wm_adsp_request_firmware_file(dsp, wmfw_firmware, wmfw_filename, 790 cirrus_dir, system_name, 791 asoc_component_prefix, "wmfw")) { 792 wm_adsp_request_firmware_file(dsp, coeff_firmware, coeff_filename, 793 cirrus_dir, system_name, 794 asoc_component_prefix, "bin"); 795 return 0; 796 } 797 } 798 799 if (system_name) { 800 if (!wm_adsp_request_firmware_file(dsp, wmfw_firmware, wmfw_filename, 801 cirrus_dir, system_name, 802 NULL, "wmfw")) { 803 if (asoc_component_prefix) 804 wm_adsp_request_firmware_file(dsp, coeff_firmware, coeff_filename, 805 cirrus_dir, system_name, 806 asoc_component_prefix, "bin"); 807 808 if (!*coeff_firmware) 809 wm_adsp_request_firmware_file(dsp, coeff_firmware, coeff_filename, 810 cirrus_dir, system_name, 811 NULL, "bin"); 812 return 0; 813 } 814 } 815 816 /* Check system-specific bin without wmfw before falling back to generic */ 817 if (dsp->wmfw_optional && system_name) { 818 if (asoc_component_prefix) 819 wm_adsp_request_firmware_file(dsp, coeff_firmware, coeff_filename, 820 cirrus_dir, system_name, 821 asoc_component_prefix, "bin"); 822 823 if (!*coeff_firmware) 824 wm_adsp_request_firmware_file(dsp, coeff_firmware, coeff_filename, 825 cirrus_dir, system_name, 826 NULL, "bin"); 827 828 if (*coeff_firmware) 829 return 0; 830 } 831 832 /* Check legacy location */ 833 if (!wm_adsp_request_firmware_file(dsp, wmfw_firmware, wmfw_filename, 834 "", NULL, NULL, "wmfw")) { 835 wm_adsp_request_firmware_file(dsp, coeff_firmware, coeff_filename, 836 "", NULL, NULL, "bin"); 837 return 0; 838 } 839 840 /* Fall back to generic wmfw and optional matching bin */ 841 ret = wm_adsp_request_firmware_file(dsp, wmfw_firmware, wmfw_filename, 842 cirrus_dir, NULL, NULL, "wmfw"); 843 if (!ret || dsp->wmfw_optional) { 844 wm_adsp_request_firmware_file(dsp, coeff_firmware, coeff_filename, 845 cirrus_dir, NULL, NULL, "bin"); 846 return 0; 847 } 848 849 adsp_err(dsp, "Failed to request firmware <%s>%s-%s-%s<-%s<%s>>.wmfw\n", 850 cirrus_dir, dsp->part, 851 dsp->fwf_name ? dsp->fwf_name : dsp->cs_dsp.name, 852 wm_adsp_fw[dsp->fw].file, system_name, asoc_component_prefix); 853 854 return -ENOENT; 855 } 856 857 static int wm_adsp_common_init(struct wm_adsp *dsp) 858 { 859 INIT_LIST_HEAD(&dsp->compr_list); 860 INIT_LIST_HEAD(&dsp->buffer_list); 861 862 return 0; 863 } 864 865 int wm_adsp1_init(struct wm_adsp *dsp) 866 { 867 int ret; 868 869 dsp->cs_dsp.client_ops = &wm_adsp1_client_ops; 870 871 ret = cs_dsp_adsp1_init(&dsp->cs_dsp); 872 if (ret) 873 return ret; 874 875 return wm_adsp_common_init(dsp); 876 } 877 EXPORT_SYMBOL_GPL(wm_adsp1_init); 878 879 int wm_adsp1_event(struct snd_soc_dapm_widget *w, 880 struct snd_kcontrol *kcontrol, 881 int event) 882 { 883 struct snd_soc_component *component = snd_soc_dapm_to_component(w->dapm); 884 struct wm_adsp *dsps = snd_soc_component_get_drvdata(component); 885 struct wm_adsp *dsp = &dsps[w->shift]; 886 int ret = 0; 887 char *wmfw_filename = NULL; 888 const struct firmware *wmfw_firmware = NULL; 889 char *coeff_filename = NULL; 890 const struct firmware *coeff_firmware = NULL; 891 892 dsp->component = component; 893 894 switch (event) { 895 case SND_SOC_DAPM_POST_PMU: 896 ret = wm_adsp_request_firmware_files(dsp, 897 &wmfw_firmware, &wmfw_filename, 898 &coeff_firmware, &coeff_filename); 899 if (ret) 900 break; 901 902 ret = cs_dsp_adsp1_power_up(&dsp->cs_dsp, 903 wmfw_firmware, wmfw_filename, 904 coeff_firmware, coeff_filename, 905 wm_adsp_fw_text[dsp->fw]); 906 907 wm_adsp_release_firmware_files(dsp, 908 wmfw_firmware, wmfw_filename, 909 coeff_firmware, coeff_filename); 910 break; 911 case SND_SOC_DAPM_PRE_PMD: 912 cs_dsp_adsp1_power_down(&dsp->cs_dsp); 913 break; 914 default: 915 break; 916 } 917 918 return ret; 919 } 920 EXPORT_SYMBOL_GPL(wm_adsp1_event); 921 922 int wm_adsp2_set_dspclk(struct snd_soc_dapm_widget *w, unsigned int freq) 923 { 924 struct snd_soc_component *component = snd_soc_dapm_to_component(w->dapm); 925 struct wm_adsp *dsps = snd_soc_component_get_drvdata(component); 926 struct wm_adsp *dsp = &dsps[w->shift]; 927 928 return cs_dsp_set_dspclk(&dsp->cs_dsp, freq); 929 } 930 EXPORT_SYMBOL_GPL(wm_adsp2_set_dspclk); 931 932 int wm_adsp2_preloader_get(struct snd_kcontrol *kcontrol, 933 struct snd_ctl_elem_value *ucontrol) 934 { 935 struct snd_soc_component *component = snd_soc_kcontrol_component(kcontrol); 936 struct wm_adsp *dsps = snd_soc_component_get_drvdata(component); 937 struct soc_mixer_control *mc = 938 (struct soc_mixer_control *)kcontrol->private_value; 939 struct wm_adsp *dsp = &dsps[mc->shift - 1]; 940 941 ucontrol->value.integer.value[0] = dsp->preloaded; 942 943 return 0; 944 } 945 EXPORT_SYMBOL_GPL(wm_adsp2_preloader_get); 946 947 int wm_adsp2_preloader_put(struct snd_kcontrol *kcontrol, 948 struct snd_ctl_elem_value *ucontrol) 949 { 950 struct snd_soc_component *component = snd_soc_kcontrol_component(kcontrol); 951 struct wm_adsp *dsps = snd_soc_component_get_drvdata(component); 952 struct snd_soc_dapm_context *dapm = snd_soc_component_get_dapm(component); 953 struct soc_mixer_control *mc = 954 (struct soc_mixer_control *)kcontrol->private_value; 955 struct wm_adsp *dsp = &dsps[mc->shift - 1]; 956 char preload[32]; 957 958 if (dsp->preloaded == ucontrol->value.integer.value[0]) 959 return 0; 960 961 snprintf(preload, ARRAY_SIZE(preload), "%s Preload", dsp->cs_dsp.name); 962 963 if (ucontrol->value.integer.value[0] || dsp->toggle_preload) 964 snd_soc_component_force_enable_pin(component, preload); 965 else 966 snd_soc_component_disable_pin(component, preload); 967 968 snd_soc_dapm_sync(dapm); 969 970 flush_work(&dsp->boot_work); 971 972 dsp->preloaded = ucontrol->value.integer.value[0]; 973 974 if (dsp->toggle_preload) { 975 snd_soc_component_disable_pin(component, preload); 976 snd_soc_dapm_sync(dapm); 977 } 978 979 return 1; 980 } 981 EXPORT_SYMBOL_GPL(wm_adsp2_preloader_put); 982 983 int wm_adsp_power_up(struct wm_adsp *dsp, bool load_firmware) 984 { 985 int ret = 0; 986 char *wmfw_filename = NULL; 987 const struct firmware *wmfw_firmware = NULL; 988 char *coeff_filename = NULL; 989 const struct firmware *coeff_firmware = NULL; 990 991 if (load_firmware) { 992 ret = wm_adsp_request_firmware_files(dsp, 993 &wmfw_firmware, &wmfw_filename, 994 &coeff_firmware, &coeff_filename); 995 if (ret) 996 return ret; 997 } 998 999 ret = cs_dsp_power_up(&dsp->cs_dsp, 1000 wmfw_firmware, wmfw_filename, 1001 coeff_firmware, coeff_filename, 1002 wm_adsp_fw_text[dsp->fw]); 1003 1004 wm_adsp_release_firmware_files(dsp, 1005 wmfw_firmware, wmfw_filename, 1006 coeff_firmware, coeff_filename); 1007 1008 return ret; 1009 } 1010 EXPORT_SYMBOL_GPL(wm_adsp_power_up); 1011 1012 void wm_adsp_power_down(struct wm_adsp *dsp) 1013 { 1014 cs_dsp_power_down(&dsp->cs_dsp); 1015 } 1016 EXPORT_SYMBOL_GPL(wm_adsp_power_down); 1017 1018 static void wm_adsp_boot_work(struct work_struct *work) 1019 { 1020 struct wm_adsp *dsp = container_of(work, 1021 struct wm_adsp, 1022 boot_work); 1023 1024 wm_adsp_power_up(dsp, true); 1025 } 1026 1027 int wm_adsp_early_event(struct snd_soc_dapm_widget *w, 1028 struct snd_kcontrol *kcontrol, int event) 1029 { 1030 struct snd_soc_component *component = snd_soc_dapm_to_component(w->dapm); 1031 struct wm_adsp *dsps = snd_soc_component_get_drvdata(component); 1032 struct wm_adsp *dsp = &dsps[w->shift]; 1033 1034 switch (event) { 1035 case SND_SOC_DAPM_PRE_PMU: 1036 queue_work(system_unbound_wq, &dsp->boot_work); 1037 break; 1038 case SND_SOC_DAPM_PRE_PMD: 1039 wm_adsp_power_down(dsp); 1040 break; 1041 default: 1042 break; 1043 } 1044 1045 return 0; 1046 } 1047 EXPORT_SYMBOL_GPL(wm_adsp_early_event); 1048 1049 static int wm_adsp_pre_run(struct cs_dsp *cs_dsp) 1050 { 1051 struct wm_adsp *dsp = container_of(cs_dsp, struct wm_adsp, cs_dsp); 1052 1053 if (!dsp->pre_run) 1054 return 0; 1055 1056 return (*dsp->pre_run)(dsp); 1057 } 1058 1059 static int wm_adsp_event_post_run(struct cs_dsp *cs_dsp) 1060 { 1061 struct wm_adsp *dsp = container_of(cs_dsp, struct wm_adsp, cs_dsp); 1062 1063 if (wm_adsp_fw[dsp->fw].num_caps != 0) 1064 return wm_adsp_buffer_init(dsp); 1065 1066 return 0; 1067 } 1068 1069 static void wm_adsp_event_post_stop(struct cs_dsp *cs_dsp) 1070 { 1071 struct wm_adsp *dsp = container_of(cs_dsp, struct wm_adsp, cs_dsp); 1072 1073 if (wm_adsp_fw[dsp->fw].num_caps != 0) 1074 wm_adsp_buffer_free(dsp); 1075 1076 dsp->fatal_error = false; 1077 } 1078 1079 int wm_adsp_run(struct wm_adsp *dsp) 1080 { 1081 flush_work(&dsp->boot_work); 1082 1083 return cs_dsp_run(&dsp->cs_dsp); 1084 } 1085 EXPORT_SYMBOL_GPL(wm_adsp_run); 1086 1087 void wm_adsp_stop(struct wm_adsp *dsp) 1088 { 1089 cs_dsp_stop(&dsp->cs_dsp); 1090 } 1091 EXPORT_SYMBOL_GPL(wm_adsp_stop); 1092 1093 int wm_adsp_event(struct snd_soc_dapm_widget *w, 1094 struct snd_kcontrol *kcontrol, int event) 1095 { 1096 struct snd_soc_component *component = snd_soc_dapm_to_component(w->dapm); 1097 struct wm_adsp *dsps = snd_soc_component_get_drvdata(component); 1098 struct wm_adsp *dsp = &dsps[w->shift]; 1099 1100 switch (event) { 1101 case SND_SOC_DAPM_POST_PMU: 1102 return wm_adsp_run(dsp); 1103 case SND_SOC_DAPM_PRE_PMD: 1104 wm_adsp_stop(dsp); 1105 return 0; 1106 default: 1107 return 0; 1108 } 1109 } 1110 EXPORT_SYMBOL_GPL(wm_adsp_event); 1111 1112 int wm_adsp2_component_probe(struct wm_adsp *dsp, struct snd_soc_component *component) 1113 { 1114 char preload[32]; 1115 1116 if (!dsp->cs_dsp.no_core_startstop) { 1117 snprintf(preload, ARRAY_SIZE(preload), "%s Preload", dsp->cs_dsp.name); 1118 snd_soc_component_disable_pin(component, preload); 1119 } 1120 1121 cs_dsp_init_debugfs(&dsp->cs_dsp, component->debugfs_root); 1122 1123 dsp->component = component; 1124 1125 return 0; 1126 } 1127 EXPORT_SYMBOL_GPL(wm_adsp2_component_probe); 1128 1129 int wm_adsp2_component_remove(struct wm_adsp *dsp, struct snd_soc_component *component) 1130 { 1131 cs_dsp_cleanup_debugfs(&dsp->cs_dsp); 1132 1133 return 0; 1134 } 1135 EXPORT_SYMBOL_GPL(wm_adsp2_component_remove); 1136 1137 int wm_adsp2_init(struct wm_adsp *dsp) 1138 { 1139 int ret; 1140 1141 INIT_WORK(&dsp->boot_work, wm_adsp_boot_work); 1142 1143 dsp->sys_config_size = sizeof(struct wm_adsp_system_config_xm_hdr); 1144 dsp->cs_dsp.client_ops = &wm_adsp2_client_ops; 1145 1146 ret = cs_dsp_adsp2_init(&dsp->cs_dsp); 1147 if (ret) 1148 return ret; 1149 1150 return wm_adsp_common_init(dsp); 1151 } 1152 EXPORT_SYMBOL_GPL(wm_adsp2_init); 1153 1154 int wm_halo_init(struct wm_adsp *dsp) 1155 { 1156 int ret; 1157 1158 INIT_WORK(&dsp->boot_work, wm_adsp_boot_work); 1159 1160 dsp->sys_config_size = sizeof(struct wm_halo_system_config_xm_hdr); 1161 dsp->cs_dsp.client_ops = &wm_adsp2_client_ops; 1162 1163 ret = cs_dsp_halo_init(&dsp->cs_dsp); 1164 if (ret) 1165 return ret; 1166 1167 return wm_adsp_common_init(dsp); 1168 } 1169 EXPORT_SYMBOL_GPL(wm_halo_init); 1170 1171 void wm_adsp2_remove(struct wm_adsp *dsp) 1172 { 1173 cs_dsp_remove(&dsp->cs_dsp); 1174 } 1175 EXPORT_SYMBOL_GPL(wm_adsp2_remove); 1176 1177 static inline int wm_adsp_compr_attached(struct wm_adsp_compr *compr) 1178 { 1179 return compr->buf != NULL; 1180 } 1181 1182 static int wm_adsp_compr_attach(struct wm_adsp_compr *compr) 1183 { 1184 struct wm_adsp_compr_buf *buf = NULL, *tmp; 1185 1186 if (compr->dsp->fatal_error) 1187 return -EINVAL; 1188 1189 list_for_each_entry(tmp, &compr->dsp->buffer_list, list) { 1190 if (!tmp->name || !strcmp(compr->name, tmp->name)) { 1191 buf = tmp; 1192 break; 1193 } 1194 } 1195 1196 if (!buf) 1197 return -EINVAL; 1198 1199 compr->buf = buf; 1200 buf->compr = compr; 1201 1202 return 0; 1203 } 1204 1205 static void wm_adsp_compr_detach(struct wm_adsp_compr *compr) 1206 { 1207 if (!compr) 1208 return; 1209 1210 /* Wake the poll so it can see buffer is no longer attached */ 1211 if (compr->stream) 1212 snd_compr_fragment_elapsed(compr->stream); 1213 1214 if (wm_adsp_compr_attached(compr)) { 1215 compr->buf->compr = NULL; 1216 compr->buf = NULL; 1217 } 1218 } 1219 1220 int wm_adsp_compr_open(struct wm_adsp *dsp, struct snd_compr_stream *stream) 1221 { 1222 struct wm_adsp_compr *compr, *tmp; 1223 struct snd_soc_pcm_runtime *rtd = stream->private_data; 1224 int ret = 0; 1225 1226 mutex_lock(&dsp->cs_dsp.pwr_lock); 1227 1228 if (wm_adsp_fw[dsp->fw].num_caps == 0) { 1229 adsp_err(dsp, "%s: Firmware does not support compressed API\n", 1230 snd_soc_rtd_to_codec(rtd, 0)->name); 1231 ret = -ENXIO; 1232 goto out; 1233 } 1234 1235 if (wm_adsp_fw[dsp->fw].compr_direction != stream->direction) { 1236 adsp_err(dsp, "%s: Firmware does not support stream direction\n", 1237 snd_soc_rtd_to_codec(rtd, 0)->name); 1238 ret = -EINVAL; 1239 goto out; 1240 } 1241 1242 list_for_each_entry(tmp, &dsp->compr_list, list) { 1243 if (!strcmp(tmp->name, snd_soc_rtd_to_codec(rtd, 0)->name)) { 1244 adsp_err(dsp, "%s: Only a single stream supported per dai\n", 1245 snd_soc_rtd_to_codec(rtd, 0)->name); 1246 ret = -EBUSY; 1247 goto out; 1248 } 1249 } 1250 1251 compr = kzalloc(sizeof(*compr), GFP_KERNEL); 1252 if (!compr) { 1253 ret = -ENOMEM; 1254 goto out; 1255 } 1256 1257 compr->dsp = dsp; 1258 compr->stream = stream; 1259 compr->name = snd_soc_rtd_to_codec(rtd, 0)->name; 1260 1261 list_add_tail(&compr->list, &dsp->compr_list); 1262 1263 stream->runtime->private_data = compr; 1264 1265 out: 1266 mutex_unlock(&dsp->cs_dsp.pwr_lock); 1267 1268 return ret; 1269 } 1270 EXPORT_SYMBOL_GPL(wm_adsp_compr_open); 1271 1272 int wm_adsp_compr_free(struct snd_soc_component *component, 1273 struct snd_compr_stream *stream) 1274 { 1275 struct wm_adsp_compr *compr = stream->runtime->private_data; 1276 struct wm_adsp *dsp = compr->dsp; 1277 1278 mutex_lock(&dsp->cs_dsp.pwr_lock); 1279 1280 wm_adsp_compr_detach(compr); 1281 list_del(&compr->list); 1282 1283 kfree(compr->raw_buf); 1284 kfree(compr); 1285 1286 mutex_unlock(&dsp->cs_dsp.pwr_lock); 1287 1288 return 0; 1289 } 1290 EXPORT_SYMBOL_GPL(wm_adsp_compr_free); 1291 1292 static int wm_adsp_compr_check_params(struct snd_compr_stream *stream, 1293 struct snd_compr_params *params) 1294 { 1295 struct wm_adsp_compr *compr = stream->runtime->private_data; 1296 struct wm_adsp *dsp = compr->dsp; 1297 const struct wm_adsp_fw_caps *caps; 1298 const struct snd_codec_desc *desc; 1299 int i, j; 1300 1301 if (params->buffer.fragment_size < WM_ADSP_MIN_FRAGMENT_SIZE || 1302 params->buffer.fragment_size > WM_ADSP_MAX_FRAGMENT_SIZE || 1303 params->buffer.fragments < WM_ADSP_MIN_FRAGMENTS || 1304 params->buffer.fragments > WM_ADSP_MAX_FRAGMENTS || 1305 params->buffer.fragment_size % CS_DSP_DATA_WORD_SIZE) { 1306 compr_err(compr, "Invalid buffer fragsize=%d fragments=%d\n", 1307 params->buffer.fragment_size, 1308 params->buffer.fragments); 1309 1310 return -EINVAL; 1311 } 1312 1313 for (i = 0; i < wm_adsp_fw[dsp->fw].num_caps; i++) { 1314 caps = &wm_adsp_fw[dsp->fw].caps[i]; 1315 desc = &caps->desc; 1316 1317 if (caps->id != params->codec.id) 1318 continue; 1319 1320 if (stream->direction == SND_COMPRESS_PLAYBACK) { 1321 if (desc->max_ch < params->codec.ch_out) 1322 continue; 1323 } else { 1324 if (desc->max_ch < params->codec.ch_in) 1325 continue; 1326 } 1327 1328 if (!(desc->formats & (1 << params->codec.format))) 1329 continue; 1330 1331 for (j = 0; j < desc->num_sample_rates; ++j) 1332 if (desc->sample_rates[j] == params->codec.sample_rate) 1333 return 0; 1334 } 1335 1336 compr_err(compr, "Invalid params id=%u ch=%u,%u rate=%u fmt=%u\n", 1337 params->codec.id, params->codec.ch_in, params->codec.ch_out, 1338 params->codec.sample_rate, params->codec.format); 1339 return -EINVAL; 1340 } 1341 1342 static inline unsigned int wm_adsp_compr_frag_words(struct wm_adsp_compr *compr) 1343 { 1344 return compr->size.fragment_size / CS_DSP_DATA_WORD_SIZE; 1345 } 1346 1347 int wm_adsp_compr_set_params(struct snd_soc_component *component, 1348 struct snd_compr_stream *stream, 1349 struct snd_compr_params *params) 1350 { 1351 struct wm_adsp_compr *compr = stream->runtime->private_data; 1352 unsigned int size; 1353 int ret; 1354 1355 ret = wm_adsp_compr_check_params(stream, params); 1356 if (ret) 1357 return ret; 1358 1359 compr->size = params->buffer; 1360 1361 compr_dbg(compr, "fragment_size=%d fragments=%d\n", 1362 compr->size.fragment_size, compr->size.fragments); 1363 1364 size = wm_adsp_compr_frag_words(compr) * sizeof(*compr->raw_buf); 1365 compr->raw_buf = kmalloc(size, GFP_DMA | GFP_KERNEL); 1366 if (!compr->raw_buf) 1367 return -ENOMEM; 1368 1369 compr->sample_rate = params->codec.sample_rate; 1370 1371 return 0; 1372 } 1373 EXPORT_SYMBOL_GPL(wm_adsp_compr_set_params); 1374 1375 int wm_adsp_compr_get_caps(struct snd_soc_component *component, 1376 struct snd_compr_stream *stream, 1377 struct snd_compr_caps *caps) 1378 { 1379 struct wm_adsp_compr *compr = stream->runtime->private_data; 1380 int fw = compr->dsp->fw; 1381 int i; 1382 1383 if (wm_adsp_fw[fw].caps) { 1384 for (i = 0; i < wm_adsp_fw[fw].num_caps; i++) 1385 caps->codecs[i] = wm_adsp_fw[fw].caps[i].id; 1386 1387 caps->num_codecs = i; 1388 caps->direction = wm_adsp_fw[fw].compr_direction; 1389 1390 caps->min_fragment_size = WM_ADSP_MIN_FRAGMENT_SIZE; 1391 caps->max_fragment_size = WM_ADSP_MAX_FRAGMENT_SIZE; 1392 caps->min_fragments = WM_ADSP_MIN_FRAGMENTS; 1393 caps->max_fragments = WM_ADSP_MAX_FRAGMENTS; 1394 } 1395 1396 return 0; 1397 } 1398 EXPORT_SYMBOL_GPL(wm_adsp_compr_get_caps); 1399 1400 static inline int wm_adsp_buffer_read(struct wm_adsp_compr_buf *buf, 1401 unsigned int field_offset, u32 *data) 1402 { 1403 return cs_dsp_read_data_word(&buf->dsp->cs_dsp, buf->host_buf_mem_type, 1404 buf->host_buf_ptr + field_offset, data); 1405 } 1406 1407 static inline int wm_adsp_buffer_write(struct wm_adsp_compr_buf *buf, 1408 unsigned int field_offset, u32 data) 1409 { 1410 return cs_dsp_write_data_word(&buf->dsp->cs_dsp, buf->host_buf_mem_type, 1411 buf->host_buf_ptr + field_offset, 1412 data); 1413 } 1414 1415 static int wm_adsp_buffer_populate(struct wm_adsp_compr_buf *buf) 1416 { 1417 const struct wm_adsp_fw_caps *caps = wm_adsp_fw[buf->dsp->fw].caps; 1418 struct wm_adsp_buffer_region *region; 1419 u32 offset = 0; 1420 int i, ret; 1421 1422 buf->regions = kcalloc(caps->num_regions, sizeof(*buf->regions), 1423 GFP_KERNEL); 1424 if (!buf->regions) 1425 return -ENOMEM; 1426 1427 for (i = 0; i < caps->num_regions; ++i) { 1428 region = &buf->regions[i]; 1429 1430 region->offset = offset; 1431 region->mem_type = caps->region_defs[i].mem_type; 1432 1433 ret = wm_adsp_buffer_read(buf, caps->region_defs[i].base_offset, 1434 ®ion->base_addr); 1435 if (ret < 0) 1436 goto err; 1437 1438 ret = wm_adsp_buffer_read(buf, caps->region_defs[i].size_offset, 1439 &offset); 1440 if (ret < 0) 1441 goto err; 1442 1443 region->cumulative_size = offset; 1444 1445 compr_dbg(buf, 1446 "region=%d type=%d base=%08x off=%08x size=%08x\n", 1447 i, region->mem_type, region->base_addr, 1448 region->offset, region->cumulative_size); 1449 } 1450 1451 return 0; 1452 1453 err: 1454 kfree(buf->regions); 1455 return ret; 1456 } 1457 1458 static void wm_adsp_buffer_clear(struct wm_adsp_compr_buf *buf) 1459 { 1460 buf->irq_count = 0xFFFFFFFF; 1461 buf->read_index = -1; 1462 buf->avail = 0; 1463 } 1464 1465 static struct wm_adsp_compr_buf *wm_adsp_buffer_alloc(struct wm_adsp *dsp) 1466 { 1467 struct wm_adsp_compr_buf *buf; 1468 1469 buf = kzalloc(sizeof(*buf), GFP_KERNEL); 1470 if (!buf) 1471 return NULL; 1472 1473 buf->dsp = dsp; 1474 1475 wm_adsp_buffer_clear(buf); 1476 1477 return buf; 1478 } 1479 1480 static int wm_adsp_buffer_parse_legacy(struct wm_adsp *dsp) 1481 { 1482 struct cs_dsp_alg_region *alg_region; 1483 struct wm_adsp_compr_buf *buf; 1484 u32 xmalg, addr, magic; 1485 int i, ret; 1486 1487 alg_region = cs_dsp_find_alg_region(&dsp->cs_dsp, WMFW_ADSP2_XM, dsp->cs_dsp.fw_id); 1488 if (!alg_region) { 1489 adsp_err(dsp, "No algorithm region found\n"); 1490 return -EINVAL; 1491 } 1492 1493 xmalg = dsp->sys_config_size / sizeof(__be32); 1494 1495 addr = alg_region->base + xmalg + ALG_XM_FIELD(magic); 1496 ret = cs_dsp_read_data_word(&dsp->cs_dsp, WMFW_ADSP2_XM, addr, &magic); 1497 if (ret < 0) 1498 return ret; 1499 1500 if (magic != WM_ADSP_ALG_XM_STRUCT_MAGIC) 1501 return -ENODEV; 1502 1503 buf = wm_adsp_buffer_alloc(dsp); 1504 if (!buf) 1505 return -ENOMEM; 1506 1507 addr = alg_region->base + xmalg + ALG_XM_FIELD(host_buf_ptr); 1508 for (i = 0; i < 5; ++i) { 1509 ret = cs_dsp_read_data_word(&dsp->cs_dsp, WMFW_ADSP2_XM, addr, 1510 &buf->host_buf_ptr); 1511 if (ret < 0) 1512 goto err; 1513 1514 if (buf->host_buf_ptr) 1515 break; 1516 1517 usleep_range(1000, 2000); 1518 } 1519 1520 if (!buf->host_buf_ptr) { 1521 ret = -EIO; 1522 goto err; 1523 } 1524 1525 buf->host_buf_mem_type = WMFW_ADSP2_XM; 1526 1527 ret = wm_adsp_buffer_populate(buf); 1528 if (ret < 0) 1529 goto err; 1530 1531 list_add_tail(&buf->list, &dsp->buffer_list); 1532 1533 compr_dbg(buf, "legacy host_buf_ptr=%x\n", buf->host_buf_ptr); 1534 1535 return 0; 1536 1537 err: 1538 kfree(buf); 1539 1540 return ret; 1541 } 1542 1543 static int wm_adsp_buffer_parse_coeff(struct cs_dsp_coeff_ctl *cs_ctl) 1544 { 1545 struct wm_adsp_host_buf_coeff_v1 coeff_v1; 1546 struct wm_adsp_compr_buf *buf; 1547 struct wm_adsp *dsp = container_of(cs_ctl->dsp, struct wm_adsp, cs_dsp); 1548 unsigned int version = 0; 1549 int ret, i; 1550 1551 for (i = 0; i < 5; ++i) { 1552 ret = cs_dsp_coeff_read_ctrl(cs_ctl, 0, &coeff_v1, 1553 min(cs_ctl->len, sizeof(coeff_v1))); 1554 if (ret < 0) 1555 return ret; 1556 1557 if (coeff_v1.host_buf_ptr) 1558 break; 1559 1560 usleep_range(1000, 2000); 1561 } 1562 1563 if (!coeff_v1.host_buf_ptr) { 1564 adsp_err(dsp, "Failed to acquire host buffer\n"); 1565 return -EIO; 1566 } 1567 1568 buf = wm_adsp_buffer_alloc(dsp); 1569 if (!buf) 1570 return -ENOMEM; 1571 1572 buf->host_buf_mem_type = cs_ctl->alg_region.type; 1573 buf->host_buf_ptr = be32_to_cpu(coeff_v1.host_buf_ptr); 1574 1575 ret = wm_adsp_buffer_populate(buf); 1576 if (ret < 0) 1577 goto err; 1578 1579 /* 1580 * v0 host_buffer coefficients didn't have versioning, so if the 1581 * control is one word, assume version 0. 1582 */ 1583 if (cs_ctl->len == 4) 1584 goto done; 1585 1586 version = be32_to_cpu(coeff_v1.versions) & HOST_BUF_COEFF_COMPAT_VER_MASK; 1587 version >>= HOST_BUF_COEFF_COMPAT_VER_SHIFT; 1588 1589 if (version > HOST_BUF_COEFF_SUPPORTED_COMPAT_VER) { 1590 adsp_err(dsp, 1591 "Host buffer coeff ver %u > supported version %u\n", 1592 version, HOST_BUF_COEFF_SUPPORTED_COMPAT_VER); 1593 ret = -EINVAL; 1594 goto err; 1595 } 1596 1597 cs_dsp_remove_padding((u32 *)&coeff_v1.name, ARRAY_SIZE(coeff_v1.name)); 1598 1599 buf->name = kasprintf(GFP_KERNEL, "%s-dsp-%s", dsp->part, 1600 (char *)&coeff_v1.name); 1601 1602 done: 1603 list_add_tail(&buf->list, &dsp->buffer_list); 1604 1605 compr_dbg(buf, "host_buf_ptr=%x coeff version %u\n", 1606 buf->host_buf_ptr, version); 1607 1608 return version; 1609 1610 err: 1611 kfree(buf); 1612 1613 return ret; 1614 } 1615 1616 static int wm_adsp_buffer_init(struct wm_adsp *dsp) 1617 { 1618 struct cs_dsp_coeff_ctl *cs_ctl; 1619 int ret; 1620 1621 list_for_each_entry(cs_ctl, &dsp->cs_dsp.ctl_list, list) { 1622 if (cs_ctl->type != WMFW_CTL_TYPE_HOST_BUFFER) 1623 continue; 1624 1625 if (!cs_ctl->enabled) 1626 continue; 1627 1628 ret = wm_adsp_buffer_parse_coeff(cs_ctl); 1629 if (ret < 0) { 1630 adsp_err(dsp, "Failed to parse coeff: %d\n", ret); 1631 goto error; 1632 } else if (ret == 0) { 1633 /* Only one buffer supported for version 0 */ 1634 return 0; 1635 } 1636 } 1637 1638 if (list_empty(&dsp->buffer_list)) { 1639 /* Fall back to legacy support */ 1640 ret = wm_adsp_buffer_parse_legacy(dsp); 1641 if (ret == -ENODEV) 1642 adsp_info(dsp, "Legacy support not available\n"); 1643 else if (ret) 1644 adsp_warn(dsp, "Failed to parse legacy: %d\n", ret); 1645 } 1646 1647 return 0; 1648 1649 error: 1650 wm_adsp_buffer_free(dsp); 1651 return ret; 1652 } 1653 1654 static int wm_adsp_buffer_free(struct wm_adsp *dsp) 1655 { 1656 struct wm_adsp_compr_buf *buf, *tmp; 1657 1658 list_for_each_entry_safe(buf, tmp, &dsp->buffer_list, list) { 1659 wm_adsp_compr_detach(buf->compr); 1660 1661 kfree(buf->name); 1662 kfree(buf->regions); 1663 list_del(&buf->list); 1664 kfree(buf); 1665 } 1666 1667 return 0; 1668 } 1669 1670 static int wm_adsp_buffer_get_error(struct wm_adsp_compr_buf *buf) 1671 { 1672 int ret; 1673 1674 ret = wm_adsp_buffer_read(buf, HOST_BUFFER_FIELD(error), &buf->error); 1675 if (ret < 0) { 1676 compr_err(buf, "Failed to check buffer error: %d\n", ret); 1677 return ret; 1678 } 1679 if (buf->error != 0) { 1680 compr_err(buf, "Buffer error occurred: %d\n", buf->error); 1681 return -EIO; 1682 } 1683 1684 return 0; 1685 } 1686 1687 int wm_adsp_compr_trigger(struct snd_soc_component *component, 1688 struct snd_compr_stream *stream, int cmd) 1689 { 1690 struct wm_adsp_compr *compr = stream->runtime->private_data; 1691 struct wm_adsp *dsp = compr->dsp; 1692 int ret = 0; 1693 1694 compr_dbg(compr, "Trigger: %d\n", cmd); 1695 1696 mutex_lock(&dsp->cs_dsp.pwr_lock); 1697 1698 switch (cmd) { 1699 case SNDRV_PCM_TRIGGER_START: 1700 if (!wm_adsp_compr_attached(compr)) { 1701 ret = wm_adsp_compr_attach(compr); 1702 if (ret < 0) { 1703 compr_err(compr, "Failed to link buffer and stream: %d\n", 1704 ret); 1705 break; 1706 } 1707 } 1708 1709 ret = wm_adsp_buffer_get_error(compr->buf); 1710 if (ret < 0) 1711 break; 1712 1713 /* Trigger the IRQ at one fragment of data */ 1714 ret = wm_adsp_buffer_write(compr->buf, 1715 HOST_BUFFER_FIELD(high_water_mark), 1716 wm_adsp_compr_frag_words(compr)); 1717 if (ret < 0) { 1718 compr_err(compr, "Failed to set high water mark: %d\n", 1719 ret); 1720 break; 1721 } 1722 break; 1723 case SNDRV_PCM_TRIGGER_STOP: 1724 if (wm_adsp_compr_attached(compr)) 1725 wm_adsp_buffer_clear(compr->buf); 1726 break; 1727 default: 1728 ret = -EINVAL; 1729 break; 1730 } 1731 1732 mutex_unlock(&dsp->cs_dsp.pwr_lock); 1733 1734 return ret; 1735 } 1736 EXPORT_SYMBOL_GPL(wm_adsp_compr_trigger); 1737 1738 static inline int wm_adsp_buffer_size(struct wm_adsp_compr_buf *buf) 1739 { 1740 int last_region = wm_adsp_fw[buf->dsp->fw].caps->num_regions - 1; 1741 1742 return buf->regions[last_region].cumulative_size; 1743 } 1744 1745 static int wm_adsp_buffer_update_avail(struct wm_adsp_compr_buf *buf) 1746 { 1747 u32 next_read_index, next_write_index; 1748 int write_index, read_index, avail; 1749 int ret; 1750 1751 /* Only sync read index if we haven't already read a valid index */ 1752 if (buf->read_index < 0) { 1753 ret = wm_adsp_buffer_read(buf, 1754 HOST_BUFFER_FIELD(next_read_index), 1755 &next_read_index); 1756 if (ret < 0) 1757 return ret; 1758 1759 read_index = sign_extend32(next_read_index, 23); 1760 1761 if (read_index < 0) { 1762 compr_dbg(buf, "Avail check on unstarted stream\n"); 1763 return 0; 1764 } 1765 1766 buf->read_index = read_index; 1767 } 1768 1769 ret = wm_adsp_buffer_read(buf, HOST_BUFFER_FIELD(next_write_index), 1770 &next_write_index); 1771 if (ret < 0) 1772 return ret; 1773 1774 write_index = sign_extend32(next_write_index, 23); 1775 1776 avail = write_index - buf->read_index; 1777 if (avail < 0) 1778 avail += wm_adsp_buffer_size(buf); 1779 1780 compr_dbg(buf, "readindex=0x%x, writeindex=0x%x, avail=%d\n", 1781 buf->read_index, write_index, avail * CS_DSP_DATA_WORD_SIZE); 1782 1783 buf->avail = avail; 1784 1785 return 0; 1786 } 1787 1788 int wm_adsp_compr_handle_irq(struct wm_adsp *dsp) 1789 { 1790 struct wm_adsp_compr_buf *buf; 1791 struct wm_adsp_compr *compr; 1792 int ret = 0; 1793 1794 mutex_lock(&dsp->cs_dsp.pwr_lock); 1795 1796 if (list_empty(&dsp->buffer_list)) { 1797 ret = -ENODEV; 1798 goto out; 1799 } 1800 1801 adsp_dbg(dsp, "Handling buffer IRQ\n"); 1802 1803 list_for_each_entry(buf, &dsp->buffer_list, list) { 1804 compr = buf->compr; 1805 1806 ret = wm_adsp_buffer_get_error(buf); 1807 if (ret < 0) 1808 goto out_notify; /* Wake poll to report error */ 1809 1810 ret = wm_adsp_buffer_read(buf, HOST_BUFFER_FIELD(irq_count), 1811 &buf->irq_count); 1812 if (ret < 0) { 1813 compr_err(buf, "Failed to get irq_count: %d\n", ret); 1814 goto out; 1815 } 1816 1817 ret = wm_adsp_buffer_update_avail(buf); 1818 if (ret < 0) { 1819 compr_err(buf, "Error reading avail: %d\n", ret); 1820 goto out; 1821 } 1822 1823 if (wm_adsp_fw[dsp->fw].voice_trigger && buf->irq_count == 2) 1824 ret = WM_ADSP_COMPR_VOICE_TRIGGER; 1825 1826 out_notify: 1827 if (compr && compr->stream) 1828 snd_compr_fragment_elapsed(compr->stream); 1829 } 1830 1831 out: 1832 mutex_unlock(&dsp->cs_dsp.pwr_lock); 1833 1834 return ret; 1835 } 1836 EXPORT_SYMBOL_GPL(wm_adsp_compr_handle_irq); 1837 1838 static int wm_adsp_buffer_reenable_irq(struct wm_adsp_compr_buf *buf) 1839 { 1840 if (buf->irq_count & 0x01) 1841 return 0; 1842 1843 compr_dbg(buf, "Enable IRQ(0x%x) for next fragment\n", buf->irq_count); 1844 1845 buf->irq_count |= 0x01; 1846 1847 return wm_adsp_buffer_write(buf, HOST_BUFFER_FIELD(irq_ack), 1848 buf->irq_count); 1849 } 1850 1851 int wm_adsp_compr_pointer(struct snd_soc_component *component, 1852 struct snd_compr_stream *stream, 1853 struct snd_compr_tstamp *tstamp) 1854 { 1855 struct wm_adsp_compr *compr = stream->runtime->private_data; 1856 struct wm_adsp *dsp = compr->dsp; 1857 struct wm_adsp_compr_buf *buf; 1858 int ret = 0; 1859 1860 compr_dbg(compr, "Pointer request\n"); 1861 1862 mutex_lock(&dsp->cs_dsp.pwr_lock); 1863 1864 buf = compr->buf; 1865 1866 if (dsp->fatal_error || !buf || buf->error) { 1867 snd_compr_stop_error(stream, SNDRV_PCM_STATE_XRUN); 1868 ret = -EIO; 1869 goto out; 1870 } 1871 1872 if (buf->avail < wm_adsp_compr_frag_words(compr)) { 1873 ret = wm_adsp_buffer_update_avail(buf); 1874 if (ret < 0) { 1875 compr_err(compr, "Error reading avail: %d\n", ret); 1876 goto out; 1877 } 1878 1879 /* 1880 * If we really have less than 1 fragment available tell the 1881 * DSP to inform us once a whole fragment is available. 1882 */ 1883 if (buf->avail < wm_adsp_compr_frag_words(compr)) { 1884 ret = wm_adsp_buffer_get_error(buf); 1885 if (ret < 0) { 1886 if (buf->error) 1887 snd_compr_stop_error(stream, 1888 SNDRV_PCM_STATE_XRUN); 1889 goto out; 1890 } 1891 1892 ret = wm_adsp_buffer_reenable_irq(buf); 1893 if (ret < 0) { 1894 compr_err(compr, "Failed to re-enable buffer IRQ: %d\n", 1895 ret); 1896 goto out; 1897 } 1898 } 1899 } 1900 1901 tstamp->copied_total = compr->copied_total; 1902 tstamp->copied_total += buf->avail * CS_DSP_DATA_WORD_SIZE; 1903 tstamp->sampling_rate = compr->sample_rate; 1904 1905 out: 1906 mutex_unlock(&dsp->cs_dsp.pwr_lock); 1907 1908 return ret; 1909 } 1910 EXPORT_SYMBOL_GPL(wm_adsp_compr_pointer); 1911 1912 static int wm_adsp_buffer_capture_block(struct wm_adsp_compr *compr, int target) 1913 { 1914 struct wm_adsp_compr_buf *buf = compr->buf; 1915 unsigned int adsp_addr; 1916 int mem_type, nwords, max_read; 1917 int i, ret; 1918 1919 /* Calculate read parameters */ 1920 for (i = 0; i < wm_adsp_fw[buf->dsp->fw].caps->num_regions; ++i) 1921 if (buf->read_index < buf->regions[i].cumulative_size) 1922 break; 1923 1924 if (i == wm_adsp_fw[buf->dsp->fw].caps->num_regions) 1925 return -EINVAL; 1926 1927 mem_type = buf->regions[i].mem_type; 1928 adsp_addr = buf->regions[i].base_addr + 1929 (buf->read_index - buf->regions[i].offset); 1930 1931 max_read = wm_adsp_compr_frag_words(compr); 1932 nwords = buf->regions[i].cumulative_size - buf->read_index; 1933 1934 if (nwords > target) 1935 nwords = target; 1936 if (nwords > buf->avail) 1937 nwords = buf->avail; 1938 if (nwords > max_read) 1939 nwords = max_read; 1940 if (!nwords) 1941 return 0; 1942 1943 /* Read data from DSP */ 1944 ret = cs_dsp_read_raw_data_block(&buf->dsp->cs_dsp, mem_type, adsp_addr, 1945 nwords, (__be32 *)compr->raw_buf); 1946 if (ret < 0) 1947 return ret; 1948 1949 cs_dsp_remove_padding(compr->raw_buf, nwords); 1950 1951 /* update read index to account for words read */ 1952 buf->read_index += nwords; 1953 if (buf->read_index == wm_adsp_buffer_size(buf)) 1954 buf->read_index = 0; 1955 1956 ret = wm_adsp_buffer_write(buf, HOST_BUFFER_FIELD(next_read_index), 1957 buf->read_index); 1958 if (ret < 0) 1959 return ret; 1960 1961 /* update avail to account for words read */ 1962 buf->avail -= nwords; 1963 1964 return nwords; 1965 } 1966 1967 static int wm_adsp_compr_read(struct wm_adsp_compr *compr, 1968 char __user *buf, size_t count) 1969 { 1970 struct wm_adsp *dsp = compr->dsp; 1971 int ntotal = 0; 1972 int nwords, nbytes; 1973 1974 compr_dbg(compr, "Requested read of %zu bytes\n", count); 1975 1976 if (dsp->fatal_error || !compr->buf || compr->buf->error) { 1977 snd_compr_stop_error(compr->stream, SNDRV_PCM_STATE_XRUN); 1978 return -EIO; 1979 } 1980 1981 count /= CS_DSP_DATA_WORD_SIZE; 1982 1983 do { 1984 nwords = wm_adsp_buffer_capture_block(compr, count); 1985 if (nwords < 0) { 1986 compr_err(compr, "Failed to capture block: %d\n", 1987 nwords); 1988 return nwords; 1989 } 1990 1991 nbytes = nwords * CS_DSP_DATA_WORD_SIZE; 1992 1993 compr_dbg(compr, "Read %d bytes\n", nbytes); 1994 1995 if (copy_to_user(buf + ntotal, compr->raw_buf, nbytes)) { 1996 compr_err(compr, "Failed to copy data to user: %d, %d\n", 1997 ntotal, nbytes); 1998 return -EFAULT; 1999 } 2000 2001 count -= nwords; 2002 ntotal += nbytes; 2003 } while (nwords > 0 && count > 0); 2004 2005 compr->copied_total += ntotal; 2006 2007 return ntotal; 2008 } 2009 2010 int wm_adsp_compr_copy(struct snd_soc_component *component, 2011 struct snd_compr_stream *stream, char __user *buf, 2012 size_t count) 2013 { 2014 struct wm_adsp_compr *compr = stream->runtime->private_data; 2015 struct wm_adsp *dsp = compr->dsp; 2016 int ret; 2017 2018 mutex_lock(&dsp->cs_dsp.pwr_lock); 2019 2020 if (stream->direction == SND_COMPRESS_CAPTURE) 2021 ret = wm_adsp_compr_read(compr, buf, count); 2022 else 2023 ret = -ENOTSUPP; 2024 2025 mutex_unlock(&dsp->cs_dsp.pwr_lock); 2026 2027 return ret; 2028 } 2029 EXPORT_SYMBOL_GPL(wm_adsp_compr_copy); 2030 2031 static void wm_adsp_fatal_error(struct cs_dsp *cs_dsp) 2032 { 2033 struct wm_adsp *dsp = container_of(cs_dsp, struct wm_adsp, cs_dsp); 2034 struct wm_adsp_compr *compr; 2035 2036 dsp->fatal_error = true; 2037 2038 list_for_each_entry(compr, &dsp->compr_list, list) { 2039 if (compr->stream) 2040 snd_compr_fragment_elapsed(compr->stream); 2041 } 2042 } 2043 2044 irqreturn_t wm_adsp2_bus_error(int irq, void *data) 2045 { 2046 struct wm_adsp *dsp = (struct wm_adsp *)data; 2047 2048 cs_dsp_adsp2_bus_error(&dsp->cs_dsp); 2049 2050 return IRQ_HANDLED; 2051 } 2052 EXPORT_SYMBOL_GPL(wm_adsp2_bus_error); 2053 2054 irqreturn_t wm_halo_bus_error(int irq, void *data) 2055 { 2056 struct wm_adsp *dsp = (struct wm_adsp *)data; 2057 2058 cs_dsp_halo_bus_error(&dsp->cs_dsp); 2059 2060 return IRQ_HANDLED; 2061 } 2062 EXPORT_SYMBOL_GPL(wm_halo_bus_error); 2063 2064 irqreturn_t wm_halo_wdt_expire(int irq, void *data) 2065 { 2066 struct wm_adsp *dsp = data; 2067 2068 cs_dsp_halo_wdt_expire(&dsp->cs_dsp); 2069 2070 return IRQ_HANDLED; 2071 } 2072 EXPORT_SYMBOL_GPL(wm_halo_wdt_expire); 2073 2074 static const struct cs_dsp_client_ops wm_adsp1_client_ops = { 2075 .control_add = wm_adsp_control_add, 2076 .control_remove = wm_adsp_control_remove, 2077 }; 2078 2079 static const struct cs_dsp_client_ops wm_adsp2_client_ops = { 2080 .control_add = wm_adsp_control_add, 2081 .control_remove = wm_adsp_control_remove, 2082 .pre_run = wm_adsp_pre_run, 2083 .post_run = wm_adsp_event_post_run, 2084 .post_stop = wm_adsp_event_post_stop, 2085 .watchdog_expired = wm_adsp_fatal_error, 2086 }; 2087 2088 MODULE_DESCRIPTION("Cirrus Logic ASoC DSP Support"); 2089 MODULE_LICENSE("GPL v2"); 2090 MODULE_IMPORT_NS(FW_CS_DSP); 2091