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/cleanup.h> 12 #include <linux/ctype.h> 13 #include <linux/module.h> 14 #include <linux/moduleparam.h> 15 #include <linux/init.h> 16 #include <linux/delay.h> 17 #include <linux/firmware.h> 18 #include <linux/list.h> 19 #include <linux/pm.h> 20 #include <linux/regmap.h> 21 #include <linux/regulator/consumer.h> 22 #include <linux/slab.h> 23 #include <linux/string.h> 24 #include <linux/workqueue.h> 25 #include <linux/debugfs.h> 26 #include <sound/core.h> 27 #include <sound/pcm.h> 28 #include <sound/pcm_params.h> 29 #include <sound/soc.h> 30 #include <sound/jack.h> 31 #include <sound/initval.h> 32 #include <sound/tlv.h> 33 34 #include "wm_adsp.h" 35 36 #define adsp_crit(_dsp, fmt, ...) \ 37 dev_crit(_dsp->cs_dsp.dev, "%s: " fmt, _dsp->cs_dsp.name, ##__VA_ARGS__) 38 #define adsp_err(_dsp, fmt, ...) \ 39 dev_err(_dsp->cs_dsp.dev, "%s: " fmt, _dsp->cs_dsp.name, ##__VA_ARGS__) 40 #define adsp_warn(_dsp, fmt, ...) \ 41 dev_warn(_dsp->cs_dsp.dev, "%s: " fmt, _dsp->cs_dsp.name, ##__VA_ARGS__) 42 #define adsp_info(_dsp, fmt, ...) \ 43 dev_info(_dsp->cs_dsp.dev, "%s: " fmt, _dsp->cs_dsp.name, ##__VA_ARGS__) 44 #define adsp_dbg(_dsp, fmt, ...) \ 45 dev_dbg(_dsp->cs_dsp.dev, "%s: " fmt, _dsp->cs_dsp.name, ##__VA_ARGS__) 46 47 #define compr_err(_obj, fmt, ...) \ 48 adsp_err(_obj->dsp, "%s: " fmt, _obj->name ? _obj->name : "legacy", \ 49 ##__VA_ARGS__) 50 #define compr_dbg(_obj, fmt, ...) \ 51 adsp_dbg(_obj->dsp, "%s: " fmt, _obj->name ? _obj->name : "legacy", \ 52 ##__VA_ARGS__) 53 54 #define ADSP_MAX_STD_CTRL_SIZE 512 55 56 static const struct cs_dsp_client_ops wm_adsp1_client_ops; 57 static const struct cs_dsp_client_ops wm_adsp2_client_ops; 58 59 #define WM_ADSP_FW_MBC_VSS 0 60 #define WM_ADSP_FW_HIFI 1 61 #define WM_ADSP_FW_TX 2 62 #define WM_ADSP_FW_TX_SPK 3 63 #define WM_ADSP_FW_RX 4 64 #define WM_ADSP_FW_RX_ANC 5 65 #define WM_ADSP_FW_CTRL 6 66 #define WM_ADSP_FW_ASR 7 67 #define WM_ADSP_FW_TRACE 8 68 #define WM_ADSP_FW_SPK_PROT 9 69 #define WM_ADSP_FW_SPK_CALI 10 70 #define WM_ADSP_FW_SPK_DIAG 11 71 #define WM_ADSP_FW_MISC 12 72 73 #define WM_ADSP_NUM_FW 13 74 75 static const char *wm_adsp_fw_text[WM_ADSP_NUM_FW] = { 76 [WM_ADSP_FW_MBC_VSS] = "MBC/VSS", 77 [WM_ADSP_FW_HIFI] = "MasterHiFi", 78 [WM_ADSP_FW_TX] = "Tx", 79 [WM_ADSP_FW_TX_SPK] = "Tx Speaker", 80 [WM_ADSP_FW_RX] = "Rx", 81 [WM_ADSP_FW_RX_ANC] = "Rx ANC", 82 [WM_ADSP_FW_CTRL] = "Voice Ctrl", 83 [WM_ADSP_FW_ASR] = "ASR Assist", 84 [WM_ADSP_FW_TRACE] = "Dbg Trace", 85 [WM_ADSP_FW_SPK_PROT] = "Protection", 86 [WM_ADSP_FW_SPK_CALI] = "Calibration", 87 [WM_ADSP_FW_SPK_DIAG] = "Diagnostic", 88 [WM_ADSP_FW_MISC] = "Misc", 89 }; 90 91 struct wm_adsp_system_config_xm_hdr { 92 __be32 sys_enable; 93 __be32 fw_id; 94 __be32 fw_rev; 95 __be32 boot_status; 96 __be32 watchdog; 97 __be32 dma_buffer_size; 98 __be32 rdma[6]; 99 __be32 wdma[8]; 100 __be32 build_job_name[3]; 101 __be32 build_job_number; 102 } __packed; 103 104 struct wm_halo_system_config_xm_hdr { 105 __be32 halo_heartbeat; 106 __be32 build_job_name[3]; 107 __be32 build_job_number; 108 } __packed; 109 110 struct wm_adsp_alg_xm_struct { 111 __be32 magic; 112 __be32 smoothing; 113 __be32 threshold; 114 __be32 host_buf_ptr; 115 __be32 start_seq; 116 __be32 high_water_mark; 117 __be32 low_water_mark; 118 __be64 smoothed_power; 119 } __packed; 120 121 struct wm_adsp_host_buf_coeff_v1 { 122 __be32 host_buf_ptr; /* Host buffer pointer */ 123 __be32 versions; /* Version numbers */ 124 __be32 name[4]; /* The buffer name */ 125 } __packed; 126 127 struct wm_adsp_buffer { 128 __be32 buf1_base; /* Base addr of first buffer area */ 129 __be32 buf1_size; /* Size of buf1 area in DSP words */ 130 __be32 buf2_base; /* Base addr of 2nd buffer area */ 131 __be32 buf1_buf2_size; /* Size of buf1+buf2 in DSP words */ 132 __be32 buf3_base; /* Base addr of buf3 area */ 133 __be32 buf_total_size; /* Size of buf1+buf2+buf3 in DSP words */ 134 __be32 high_water_mark; /* Point at which IRQ is asserted */ 135 __be32 irq_count; /* bits 1-31 count IRQ assertions */ 136 __be32 irq_ack; /* acked IRQ count, bit 0 enables IRQ */ 137 __be32 next_write_index; /* word index of next write */ 138 __be32 next_read_index; /* word index of next read */ 139 __be32 error; /* error if any */ 140 __be32 oldest_block_index; /* word index of oldest surviving */ 141 __be32 requested_rewind; /* how many blocks rewind was done */ 142 __be32 reserved_space; /* internal */ 143 __be32 min_free; /* min free space since stream start */ 144 __be32 blocks_written[2]; /* total blocks written (64 bit) */ 145 __be32 words_written[2]; /* total words written (64 bit) */ 146 } __packed; 147 148 struct wm_adsp_compr; 149 150 struct wm_adsp_compr_buf { 151 struct list_head list; 152 struct wm_adsp *dsp; 153 struct wm_adsp_compr *compr; 154 155 struct wm_adsp_buffer_region *regions; 156 u32 host_buf_ptr; 157 158 u32 error; 159 u32 irq_count; 160 int read_index; 161 int avail; 162 int host_buf_mem_type; 163 164 char *name; 165 }; 166 167 struct wm_adsp_compr { 168 struct list_head list; 169 struct wm_adsp *dsp; 170 struct wm_adsp_compr_buf *buf; 171 172 struct snd_compr_stream *stream; 173 struct snd_compressed_buffer size; 174 175 u32 *raw_buf; 176 unsigned int copied_total; 177 178 unsigned int sample_rate; 179 180 const char *name; 181 }; 182 183 #define WM_ADSP_MIN_FRAGMENTS 1 184 #define WM_ADSP_MAX_FRAGMENTS 256 185 #define WM_ADSP_MIN_FRAGMENT_SIZE (16 * CS_DSP_DATA_WORD_SIZE) 186 #define WM_ADSP_MAX_FRAGMENT_SIZE (4096 * CS_DSP_DATA_WORD_SIZE) 187 188 #define WM_ADSP_ALG_XM_STRUCT_MAGIC 0x49aec7 189 190 #define HOST_BUFFER_FIELD(field) \ 191 (offsetof(struct wm_adsp_buffer, field) / sizeof(__be32)) 192 193 #define ALG_XM_FIELD(field) \ 194 (offsetof(struct wm_adsp_alg_xm_struct, field) / sizeof(__be32)) 195 196 #define HOST_BUF_COEFF_SUPPORTED_COMPAT_VER 1 197 198 #define HOST_BUF_COEFF_COMPAT_VER_MASK 0xFF00 199 #define HOST_BUF_COEFF_COMPAT_VER_SHIFT 8 200 201 static int wm_adsp_buffer_init(struct wm_adsp *dsp); 202 static int wm_adsp_buffer_free(struct wm_adsp *dsp); 203 204 struct wm_adsp_buffer_region { 205 unsigned int offset; 206 unsigned int cumulative_size; 207 unsigned int mem_type; 208 unsigned int base_addr; 209 }; 210 211 struct wm_adsp_buffer_region_def { 212 unsigned int mem_type; 213 unsigned int base_offset; 214 unsigned int size_offset; 215 }; 216 217 static const struct wm_adsp_buffer_region_def default_regions[] = { 218 { 219 .mem_type = WMFW_ADSP2_XM, 220 .base_offset = HOST_BUFFER_FIELD(buf1_base), 221 .size_offset = HOST_BUFFER_FIELD(buf1_size), 222 }, 223 { 224 .mem_type = WMFW_ADSP2_XM, 225 .base_offset = HOST_BUFFER_FIELD(buf2_base), 226 .size_offset = HOST_BUFFER_FIELD(buf1_buf2_size), 227 }, 228 { 229 .mem_type = WMFW_ADSP2_YM, 230 .base_offset = HOST_BUFFER_FIELD(buf3_base), 231 .size_offset = HOST_BUFFER_FIELD(buf_total_size), 232 }, 233 }; 234 235 struct wm_adsp_fw_caps { 236 u32 id; 237 struct snd_codec_desc desc; 238 int num_regions; 239 const struct wm_adsp_buffer_region_def *region_defs; 240 }; 241 242 static const struct wm_adsp_fw_caps ctrl_caps[] = { 243 { 244 .id = SND_AUDIOCODEC_BESPOKE, 245 .desc = { 246 .max_ch = 8, 247 .sample_rates = { 16000 }, 248 .num_sample_rates = 1, 249 .formats = SNDRV_PCM_FMTBIT_S16_LE, 250 }, 251 .num_regions = ARRAY_SIZE(default_regions), 252 .region_defs = default_regions, 253 }, 254 }; 255 256 static const struct wm_adsp_fw_caps trace_caps[] = { 257 { 258 .id = SND_AUDIOCODEC_BESPOKE, 259 .desc = { 260 .max_ch = 8, 261 .sample_rates = { 262 4000, 8000, 11025, 12000, 16000, 22050, 263 24000, 32000, 44100, 48000, 64000, 88200, 264 96000, 176400, 192000 265 }, 266 .num_sample_rates = 15, 267 .formats = SNDRV_PCM_FMTBIT_S16_LE, 268 }, 269 .num_regions = ARRAY_SIZE(default_regions), 270 .region_defs = default_regions, 271 }, 272 }; 273 274 static const struct { 275 const char *file; 276 int compr_direction; 277 int num_caps; 278 const struct wm_adsp_fw_caps *caps; 279 bool voice_trigger; 280 } wm_adsp_fw[WM_ADSP_NUM_FW] = { 281 [WM_ADSP_FW_MBC_VSS] = { .file = "mbc-vss" }, 282 [WM_ADSP_FW_HIFI] = { .file = "hifi" }, 283 [WM_ADSP_FW_TX] = { .file = "tx" }, 284 [WM_ADSP_FW_TX_SPK] = { .file = "tx-spk" }, 285 [WM_ADSP_FW_RX] = { .file = "rx" }, 286 [WM_ADSP_FW_RX_ANC] = { .file = "rx-anc" }, 287 [WM_ADSP_FW_CTRL] = { 288 .file = "ctrl", 289 .compr_direction = SND_COMPRESS_CAPTURE, 290 .num_caps = ARRAY_SIZE(ctrl_caps), 291 .caps = ctrl_caps, 292 .voice_trigger = true, 293 }, 294 [WM_ADSP_FW_ASR] = { .file = "asr" }, 295 [WM_ADSP_FW_TRACE] = { 296 .file = "trace", 297 .compr_direction = SND_COMPRESS_CAPTURE, 298 .num_caps = ARRAY_SIZE(trace_caps), 299 .caps = trace_caps, 300 }, 301 [WM_ADSP_FW_SPK_PROT] = { 302 .file = "spk-prot", 303 .compr_direction = SND_COMPRESS_CAPTURE, 304 .num_caps = ARRAY_SIZE(trace_caps), 305 .caps = trace_caps, 306 }, 307 [WM_ADSP_FW_SPK_CALI] = { .file = "spk-cali" }, 308 [WM_ADSP_FW_SPK_DIAG] = { .file = "spk-diag" }, 309 [WM_ADSP_FW_MISC] = { .file = "misc" }, 310 }; 311 312 struct wm_coeff_ctl { 313 const char *name; 314 struct cs_dsp_coeff_ctl *cs_ctl; 315 struct soc_bytes_ext bytes_ext; 316 struct work_struct work; 317 }; 318 319 int wm_adsp_fw_get(struct snd_kcontrol *kcontrol, 320 struct snd_ctl_elem_value *ucontrol) 321 { 322 struct snd_soc_component *component = snd_soc_kcontrol_component(kcontrol); 323 struct soc_enum *e = (struct soc_enum *)kcontrol->private_value; 324 struct wm_adsp *dsp = snd_soc_component_get_drvdata(component); 325 326 ucontrol->value.enumerated.item[0] = dsp[e->shift_l].fw; 327 328 return 0; 329 } 330 EXPORT_SYMBOL_GPL(wm_adsp_fw_get); 331 332 int wm_adsp_fw_put(struct snd_kcontrol *kcontrol, 333 struct snd_ctl_elem_value *ucontrol) 334 { 335 struct snd_soc_component *component = snd_soc_kcontrol_component(kcontrol); 336 struct soc_enum *e = (struct soc_enum *)kcontrol->private_value; 337 struct wm_adsp *dsp = snd_soc_component_get_drvdata(component); 338 int ret = 1; 339 340 if (ucontrol->value.enumerated.item[0] == dsp[e->shift_l].fw) 341 return 0; 342 343 if (ucontrol->value.enumerated.item[0] >= WM_ADSP_NUM_FW) 344 return -EINVAL; 345 346 mutex_lock(&dsp[e->shift_l].cs_dsp.pwr_lock); 347 348 if (dsp[e->shift_l].cs_dsp.booted || !list_empty(&dsp[e->shift_l].compr_list)) 349 ret = -EBUSY; 350 else 351 dsp[e->shift_l].fw = ucontrol->value.enumerated.item[0]; 352 353 mutex_unlock(&dsp[e->shift_l].cs_dsp.pwr_lock); 354 355 return ret; 356 } 357 EXPORT_SYMBOL_GPL(wm_adsp_fw_put); 358 359 const struct soc_enum wm_adsp_fw_enum[] = { 360 SOC_ENUM_SINGLE(0, 0, ARRAY_SIZE(wm_adsp_fw_text), wm_adsp_fw_text), 361 SOC_ENUM_SINGLE(0, 1, ARRAY_SIZE(wm_adsp_fw_text), wm_adsp_fw_text), 362 SOC_ENUM_SINGLE(0, 2, ARRAY_SIZE(wm_adsp_fw_text), wm_adsp_fw_text), 363 SOC_ENUM_SINGLE(0, 3, ARRAY_SIZE(wm_adsp_fw_text), wm_adsp_fw_text), 364 SOC_ENUM_SINGLE(0, 4, ARRAY_SIZE(wm_adsp_fw_text), wm_adsp_fw_text), 365 SOC_ENUM_SINGLE(0, 5, ARRAY_SIZE(wm_adsp_fw_text), wm_adsp_fw_text), 366 SOC_ENUM_SINGLE(0, 6, ARRAY_SIZE(wm_adsp_fw_text), wm_adsp_fw_text), 367 }; 368 EXPORT_SYMBOL_GPL(wm_adsp_fw_enum); 369 370 static inline struct wm_coeff_ctl *bytes_ext_to_ctl(struct soc_bytes_ext *ext) 371 { 372 return container_of(ext, struct wm_coeff_ctl, bytes_ext); 373 } 374 375 static int wm_coeff_info(struct snd_kcontrol *kctl, 376 struct snd_ctl_elem_info *uinfo) 377 { 378 struct soc_bytes_ext *bytes_ext = 379 (struct soc_bytes_ext *)kctl->private_value; 380 struct wm_coeff_ctl *ctl = bytes_ext_to_ctl(bytes_ext); 381 struct cs_dsp_coeff_ctl *cs_ctl = ctl->cs_ctl; 382 383 switch (cs_ctl->type) { 384 case WMFW_CTL_TYPE_ACKED: 385 uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER; 386 uinfo->value.integer.min = CS_DSP_ACKED_CTL_MIN_VALUE; 387 uinfo->value.integer.max = CS_DSP_ACKED_CTL_MAX_VALUE; 388 uinfo->value.integer.step = 1; 389 uinfo->count = 1; 390 break; 391 default: 392 uinfo->type = SNDRV_CTL_ELEM_TYPE_BYTES; 393 uinfo->count = cs_ctl->len; 394 break; 395 } 396 397 return 0; 398 } 399 400 static int wm_coeff_put(struct snd_kcontrol *kctl, 401 struct snd_ctl_elem_value *ucontrol) 402 { 403 struct soc_bytes_ext *bytes_ext = 404 (struct soc_bytes_ext *)kctl->private_value; 405 struct wm_coeff_ctl *ctl = bytes_ext_to_ctl(bytes_ext); 406 struct cs_dsp_coeff_ctl *cs_ctl = ctl->cs_ctl; 407 char *p = ucontrol->value.bytes.data; 408 409 return cs_dsp_coeff_lock_and_write_ctrl(cs_ctl, 0, p, cs_ctl->len); 410 } 411 412 static int wm_coeff_tlv_put(struct snd_kcontrol *kctl, 413 const unsigned int __user *bytes, unsigned int size) 414 { 415 struct soc_bytes_ext *bytes_ext = 416 (struct soc_bytes_ext *)kctl->private_value; 417 struct wm_coeff_ctl *ctl = bytes_ext_to_ctl(bytes_ext); 418 struct cs_dsp_coeff_ctl *cs_ctl = ctl->cs_ctl; 419 void *scratch __free(kvfree) = vmemdup_user(bytes, size); 420 421 if (IS_ERR(scratch)) 422 return PTR_ERR(scratch); 423 424 return cs_dsp_coeff_lock_and_write_ctrl(cs_ctl, 0, scratch, size); 425 } 426 427 static int wm_coeff_put_acked(struct snd_kcontrol *kctl, 428 struct snd_ctl_elem_value *ucontrol) 429 { 430 struct soc_bytes_ext *bytes_ext = 431 (struct soc_bytes_ext *)kctl->private_value; 432 struct wm_coeff_ctl *ctl = bytes_ext_to_ctl(bytes_ext); 433 struct cs_dsp_coeff_ctl *cs_ctl = ctl->cs_ctl; 434 unsigned int val = ucontrol->value.integer.value[0]; 435 int ret; 436 437 if (val == 0) 438 return 0; /* 0 means no event */ 439 440 mutex_lock(&cs_ctl->dsp->pwr_lock); 441 442 if (cs_ctl->enabled) 443 ret = cs_dsp_coeff_write_acked_control(cs_ctl, val); 444 else 445 ret = -EPERM; 446 447 mutex_unlock(&cs_ctl->dsp->pwr_lock); 448 449 if (ret < 0) 450 return ret; 451 452 return 1; 453 } 454 455 static int wm_coeff_get(struct snd_kcontrol *kctl, 456 struct snd_ctl_elem_value *ucontrol) 457 { 458 struct soc_bytes_ext *bytes_ext = 459 (struct soc_bytes_ext *)kctl->private_value; 460 struct wm_coeff_ctl *ctl = bytes_ext_to_ctl(bytes_ext); 461 struct cs_dsp_coeff_ctl *cs_ctl = ctl->cs_ctl; 462 char *p = ucontrol->value.bytes.data; 463 464 return cs_dsp_coeff_lock_and_read_ctrl(cs_ctl, 0, p, cs_ctl->len); 465 } 466 467 static int wm_coeff_tlv_get(struct snd_kcontrol *kctl, 468 unsigned int __user *bytes, unsigned int size) 469 { 470 struct soc_bytes_ext *bytes_ext = 471 (struct soc_bytes_ext *)kctl->private_value; 472 struct wm_coeff_ctl *ctl = bytes_ext_to_ctl(bytes_ext); 473 struct cs_dsp_coeff_ctl *cs_ctl = ctl->cs_ctl; 474 int ret = 0; 475 476 mutex_lock(&cs_ctl->dsp->pwr_lock); 477 478 ret = cs_dsp_coeff_read_ctrl(cs_ctl, 0, cs_ctl->cache, size); 479 480 if (!ret && copy_to_user(bytes, cs_ctl->cache, size)) 481 ret = -EFAULT; 482 483 mutex_unlock(&cs_ctl->dsp->pwr_lock); 484 485 return ret; 486 } 487 488 static int wm_coeff_get_acked(struct snd_kcontrol *kcontrol, 489 struct snd_ctl_elem_value *ucontrol) 490 { 491 /* 492 * Although it's not useful to read an acked control, we must satisfy 493 * user-side assumptions that all controls are readable and that a 494 * write of the same value should be filtered out (it's valid to send 495 * the same event number again to the firmware). We therefore return 0, 496 * meaning "no event" so valid event numbers will always be a change 497 */ 498 ucontrol->value.integer.value[0] = 0; 499 500 return 0; 501 } 502 503 static unsigned int wmfw_convert_flags(unsigned int in, unsigned int len) 504 { 505 unsigned int out, rd, wr, vol; 506 507 if (len > ADSP_MAX_STD_CTRL_SIZE) { 508 rd = SNDRV_CTL_ELEM_ACCESS_TLV_READ; 509 wr = SNDRV_CTL_ELEM_ACCESS_TLV_WRITE; 510 vol = SNDRV_CTL_ELEM_ACCESS_VOLATILE; 511 512 out = SNDRV_CTL_ELEM_ACCESS_TLV_CALLBACK; 513 } else { 514 rd = SNDRV_CTL_ELEM_ACCESS_READ; 515 wr = SNDRV_CTL_ELEM_ACCESS_WRITE; 516 vol = SNDRV_CTL_ELEM_ACCESS_VOLATILE; 517 518 out = 0; 519 } 520 521 if (in) { 522 out |= rd; 523 if (in & WMFW_CTL_FLAG_WRITEABLE) 524 out |= wr; 525 if (in & WMFW_CTL_FLAG_VOLATILE) 526 out |= vol; 527 } else { 528 out |= rd | wr | vol; 529 } 530 531 return out; 532 } 533 534 static void wm_adsp_ctl_work(struct work_struct *work) 535 { 536 struct wm_coeff_ctl *ctl = container_of(work, 537 struct wm_coeff_ctl, 538 work); 539 struct cs_dsp_coeff_ctl *cs_ctl = ctl->cs_ctl; 540 struct wm_adsp *dsp = container_of(cs_ctl->dsp, 541 struct wm_adsp, 542 cs_dsp); 543 struct snd_kcontrol_new *kcontrol; 544 545 kcontrol = kzalloc(sizeof(*kcontrol), GFP_KERNEL); 546 if (!kcontrol) 547 return; 548 549 kcontrol->name = ctl->name; 550 kcontrol->info = wm_coeff_info; 551 kcontrol->iface = SNDRV_CTL_ELEM_IFACE_MIXER; 552 kcontrol->tlv.c = snd_soc_bytes_tlv_callback; 553 kcontrol->private_value = (unsigned long)&ctl->bytes_ext; 554 kcontrol->access = wmfw_convert_flags(cs_ctl->flags, cs_ctl->len); 555 556 switch (cs_ctl->type) { 557 case WMFW_CTL_TYPE_ACKED: 558 kcontrol->get = wm_coeff_get_acked; 559 kcontrol->put = wm_coeff_put_acked; 560 break; 561 default: 562 if (kcontrol->access & SNDRV_CTL_ELEM_ACCESS_TLV_CALLBACK) { 563 ctl->bytes_ext.max = cs_ctl->len; 564 ctl->bytes_ext.get = wm_coeff_tlv_get; 565 ctl->bytes_ext.put = wm_coeff_tlv_put; 566 } else { 567 kcontrol->get = wm_coeff_get; 568 kcontrol->put = wm_coeff_put; 569 } 570 break; 571 } 572 573 snd_soc_add_component_controls(dsp->component, kcontrol, 1); 574 575 kfree(kcontrol); 576 } 577 578 int wm_adsp_control_add(struct cs_dsp_coeff_ctl *cs_ctl) 579 { 580 struct wm_adsp *dsp = container_of(cs_ctl->dsp, struct wm_adsp, cs_dsp); 581 struct cs_dsp *cs_dsp = &dsp->cs_dsp; 582 struct wm_coeff_ctl *ctl; 583 char name[SNDRV_CTL_ELEM_ID_NAME_MAXLEN]; 584 const char *region_name; 585 int ret; 586 587 if (cs_ctl->flags & WMFW_CTL_FLAG_SYS) 588 return 0; 589 590 region_name = cs_dsp_mem_region_name(cs_ctl->alg_region.type); 591 if (!region_name) { 592 adsp_err(dsp, "Unknown region type: %d\n", cs_ctl->alg_region.type); 593 return -EINVAL; 594 } 595 596 switch (cs_dsp->wmfw_ver) { 597 case 0: 598 case 1: 599 ret = scnprintf(name, SNDRV_CTL_ELEM_ID_NAME_MAXLEN, 600 "%s %s %x", cs_dsp->name, region_name, 601 cs_ctl->alg_region.alg); 602 break; 603 case 2: 604 ret = scnprintf(name, SNDRV_CTL_ELEM_ID_NAME_MAXLEN, 605 "%s%c %.12s %x", cs_dsp->name, *region_name, 606 wm_adsp_fw_text[dsp->fw], cs_ctl->alg_region.alg); 607 break; 608 default: 609 ret = scnprintf(name, SNDRV_CTL_ELEM_ID_NAME_MAXLEN, 610 "%s %.12s %x", cs_dsp->name, 611 wm_adsp_fw_text[dsp->fw], cs_ctl->alg_region.alg); 612 break; 613 } 614 615 if (cs_ctl->subname) { 616 int avail = SNDRV_CTL_ELEM_ID_NAME_MAXLEN - ret - 2; 617 int skip = 0; 618 619 if (dsp->component->name_prefix) 620 avail -= strlen(dsp->component->name_prefix) + 1; 621 622 /* Truncate the subname from the start if it is too long */ 623 if (cs_ctl->subname_len > avail) 624 skip = cs_ctl->subname_len - avail; 625 626 snprintf(name + ret, SNDRV_CTL_ELEM_ID_NAME_MAXLEN - ret, 627 " %.*s", cs_ctl->subname_len - skip, cs_ctl->subname + skip); 628 } 629 630 ctl = kzalloc(sizeof(*ctl), GFP_KERNEL); 631 if (!ctl) 632 return -ENOMEM; 633 ctl->cs_ctl = cs_ctl; 634 635 ctl->name = kmemdup(name, strlen(name) + 1, GFP_KERNEL); 636 if (!ctl->name) { 637 ret = -ENOMEM; 638 goto err_ctl; 639 } 640 641 cs_ctl->priv = ctl; 642 643 INIT_WORK(&ctl->work, wm_adsp_ctl_work); 644 schedule_work(&ctl->work); 645 646 return 0; 647 648 err_ctl: 649 kfree(ctl); 650 651 return ret; 652 } 653 EXPORT_SYMBOL_GPL(wm_adsp_control_add); 654 655 static int wm_adsp_control_add_cb(struct cs_dsp_coeff_ctl *cs_ctl) 656 { 657 struct wm_adsp *dsp = container_of(cs_ctl->dsp, struct wm_adsp, cs_dsp); 658 659 if (dsp->control_add) 660 return (dsp->control_add)(dsp, cs_ctl); 661 else 662 return wm_adsp_control_add(cs_ctl); 663 } 664 665 static void wm_adsp_control_remove(struct cs_dsp_coeff_ctl *cs_ctl) 666 { 667 struct wm_coeff_ctl *ctl = cs_ctl->priv; 668 669 cancel_work_sync(&ctl->work); 670 671 kfree(ctl->name); 672 kfree(ctl); 673 } 674 675 int wm_adsp_write_ctl(struct wm_adsp *dsp, const char *name, int type, 676 unsigned int alg, void *buf, size_t len) 677 { 678 struct cs_dsp_coeff_ctl *cs_ctl; 679 int ret; 680 681 mutex_lock(&dsp->cs_dsp.pwr_lock); 682 cs_ctl = cs_dsp_get_ctl(&dsp->cs_dsp, name, type, alg); 683 ret = cs_dsp_coeff_write_ctrl(cs_ctl, 0, buf, len); 684 mutex_unlock(&dsp->cs_dsp.pwr_lock); 685 686 if (ret < 0) 687 return ret; 688 689 return 0; 690 } 691 EXPORT_SYMBOL_GPL(wm_adsp_write_ctl); 692 693 int wm_adsp_read_ctl(struct wm_adsp *dsp, const char *name, int type, 694 unsigned int alg, void *buf, size_t len) 695 { 696 int ret; 697 698 mutex_lock(&dsp->cs_dsp.pwr_lock); 699 ret = cs_dsp_coeff_read_ctrl(cs_dsp_get_ctl(&dsp->cs_dsp, name, type, alg), 700 0, buf, len); 701 mutex_unlock(&dsp->cs_dsp.pwr_lock); 702 703 return ret; 704 } 705 EXPORT_SYMBOL_GPL(wm_adsp_read_ctl); 706 707 static void wm_adsp_release_firmware_files(struct wm_adsp *dsp, 708 const struct firmware *wmfw_firmware, 709 char *wmfw_filename, 710 const struct firmware *coeff_firmware, 711 char *coeff_filename) 712 { 713 release_firmware(wmfw_firmware); 714 kfree(wmfw_filename); 715 716 release_firmware(coeff_firmware); 717 kfree(coeff_filename); 718 } 719 720 static int wm_adsp_request_firmware_file(struct wm_adsp *dsp, 721 const struct firmware **firmware, char **filename, 722 const char *dir, const char *system_name, 723 const char *asoc_component_prefix, 724 const char *filetype) 725 { 726 struct cs_dsp *cs_dsp = &dsp->cs_dsp; 727 const char *fwf; 728 char *s, c; 729 int ret = 0; 730 731 if (dsp->fwf_name) 732 fwf = dsp->fwf_name; 733 else 734 fwf = dsp->cs_dsp.name; 735 736 if (system_name && asoc_component_prefix) 737 *filename = kasprintf(GFP_KERNEL, "%s%s-%s-%s-%s-%s.%s", dir, dsp->part, 738 fwf, wm_adsp_fw[dsp->fw].file, system_name, 739 asoc_component_prefix, filetype); 740 else if (system_name) 741 *filename = kasprintf(GFP_KERNEL, "%s%s-%s-%s-%s.%s", dir, dsp->part, 742 fwf, wm_adsp_fw[dsp->fw].file, system_name, 743 filetype); 744 else 745 *filename = kasprintf(GFP_KERNEL, "%s%s-%s-%s.%s", dir, dsp->part, fwf, 746 wm_adsp_fw[dsp->fw].file, filetype); 747 748 if (*filename == NULL) 749 return -ENOMEM; 750 751 /* 752 * Make sure that filename is lower-case and any non alpha-numeric 753 * characters except full stop and forward slash are replaced with 754 * hyphens. 755 */ 756 s = *filename; 757 while (*s) { 758 c = *s; 759 if (isalnum(c)) 760 *s = tolower(c); 761 else if ((c != '.') && (c != '/')) 762 *s = '-'; 763 s++; 764 } 765 766 ret = firmware_request_nowarn(firmware, *filename, cs_dsp->dev); 767 if (ret != 0) { 768 adsp_dbg(dsp, "Failed to request '%s'\n", *filename); 769 kfree(*filename); 770 *filename = NULL; 771 } else { 772 adsp_dbg(dsp, "Found '%s'\n", *filename); 773 } 774 775 return ret; 776 } 777 778 static const char * const cirrus_dir = "cirrus/"; 779 static int wm_adsp_request_firmware_files(struct wm_adsp *dsp, 780 const struct firmware **wmfw_firmware, 781 char **wmfw_filename, 782 const struct firmware **coeff_firmware, 783 char **coeff_filename) 784 { 785 const char *system_name = dsp->system_name; 786 const char *asoc_component_prefix = dsp->component->name_prefix; 787 int ret = 0; 788 789 if (system_name && asoc_component_prefix) { 790 if (!wm_adsp_request_firmware_file(dsp, wmfw_firmware, wmfw_filename, 791 cirrus_dir, system_name, 792 asoc_component_prefix, "wmfw")) { 793 wm_adsp_request_firmware_file(dsp, coeff_firmware, coeff_filename, 794 cirrus_dir, system_name, 795 asoc_component_prefix, "bin"); 796 return 0; 797 } 798 } 799 800 if (system_name) { 801 if (!wm_adsp_request_firmware_file(dsp, wmfw_firmware, wmfw_filename, 802 cirrus_dir, system_name, 803 NULL, "wmfw")) { 804 if (asoc_component_prefix) 805 wm_adsp_request_firmware_file(dsp, coeff_firmware, coeff_filename, 806 cirrus_dir, system_name, 807 asoc_component_prefix, "bin"); 808 809 if (!*coeff_firmware) 810 wm_adsp_request_firmware_file(dsp, coeff_firmware, coeff_filename, 811 cirrus_dir, system_name, 812 NULL, "bin"); 813 return 0; 814 } 815 } 816 817 /* Check system-specific bin without wmfw before falling back to generic */ 818 if (dsp->wmfw_optional && system_name) { 819 if (asoc_component_prefix) 820 wm_adsp_request_firmware_file(dsp, coeff_firmware, coeff_filename, 821 cirrus_dir, system_name, 822 asoc_component_prefix, "bin"); 823 824 if (!*coeff_firmware) 825 wm_adsp_request_firmware_file(dsp, coeff_firmware, coeff_filename, 826 cirrus_dir, system_name, 827 NULL, "bin"); 828 829 if (*coeff_firmware) 830 return 0; 831 } 832 833 /* Check legacy location */ 834 if (!wm_adsp_request_firmware_file(dsp, wmfw_firmware, wmfw_filename, 835 "", NULL, NULL, "wmfw")) { 836 wm_adsp_request_firmware_file(dsp, coeff_firmware, coeff_filename, 837 "", NULL, NULL, "bin"); 838 return 0; 839 } 840 841 /* Fall back to generic wmfw and optional matching bin */ 842 ret = wm_adsp_request_firmware_file(dsp, wmfw_firmware, wmfw_filename, 843 cirrus_dir, NULL, NULL, "wmfw"); 844 if (!ret || dsp->wmfw_optional) { 845 wm_adsp_request_firmware_file(dsp, coeff_firmware, coeff_filename, 846 cirrus_dir, NULL, NULL, "bin"); 847 return 0; 848 } 849 850 adsp_err(dsp, "Failed to request firmware <%s>%s-%s-%s<-%s<%s>>.wmfw\n", 851 cirrus_dir, dsp->part, 852 dsp->fwf_name ? dsp->fwf_name : dsp->cs_dsp.name, 853 wm_adsp_fw[dsp->fw].file, system_name, asoc_component_prefix); 854 855 return -ENOENT; 856 } 857 858 static int wm_adsp_common_init(struct wm_adsp *dsp) 859 { 860 INIT_LIST_HEAD(&dsp->compr_list); 861 INIT_LIST_HEAD(&dsp->buffer_list); 862 863 return 0; 864 } 865 866 int wm_adsp1_init(struct wm_adsp *dsp) 867 { 868 int ret; 869 870 dsp->cs_dsp.client_ops = &wm_adsp1_client_ops; 871 872 ret = cs_dsp_adsp1_init(&dsp->cs_dsp); 873 if (ret) 874 return ret; 875 876 return wm_adsp_common_init(dsp); 877 } 878 EXPORT_SYMBOL_GPL(wm_adsp1_init); 879 880 int wm_adsp1_event(struct snd_soc_dapm_widget *w, 881 struct snd_kcontrol *kcontrol, 882 int event) 883 { 884 struct snd_soc_component *component = snd_soc_dapm_to_component(w->dapm); 885 struct wm_adsp *dsps = snd_soc_component_get_drvdata(component); 886 struct wm_adsp *dsp = &dsps[w->shift]; 887 int ret = 0; 888 char *wmfw_filename = NULL; 889 const struct firmware *wmfw_firmware = NULL; 890 char *coeff_filename = NULL; 891 const struct firmware *coeff_firmware = NULL; 892 893 dsp->component = component; 894 895 switch (event) { 896 case SND_SOC_DAPM_POST_PMU: 897 ret = wm_adsp_request_firmware_files(dsp, 898 &wmfw_firmware, &wmfw_filename, 899 &coeff_firmware, &coeff_filename); 900 if (ret) 901 break; 902 903 ret = cs_dsp_adsp1_power_up(&dsp->cs_dsp, 904 wmfw_firmware, wmfw_filename, 905 coeff_firmware, coeff_filename, 906 wm_adsp_fw_text[dsp->fw]); 907 908 wm_adsp_release_firmware_files(dsp, 909 wmfw_firmware, wmfw_filename, 910 coeff_firmware, coeff_filename); 911 break; 912 case SND_SOC_DAPM_PRE_PMD: 913 cs_dsp_adsp1_power_down(&dsp->cs_dsp); 914 break; 915 default: 916 break; 917 } 918 919 return ret; 920 } 921 EXPORT_SYMBOL_GPL(wm_adsp1_event); 922 923 int wm_adsp2_set_dspclk(struct snd_soc_dapm_widget *w, unsigned int freq) 924 { 925 struct snd_soc_component *component = snd_soc_dapm_to_component(w->dapm); 926 struct wm_adsp *dsps = snd_soc_component_get_drvdata(component); 927 struct wm_adsp *dsp = &dsps[w->shift]; 928 929 return cs_dsp_set_dspclk(&dsp->cs_dsp, freq); 930 } 931 EXPORT_SYMBOL_GPL(wm_adsp2_set_dspclk); 932 933 int wm_adsp2_preloader_get(struct snd_kcontrol *kcontrol, 934 struct snd_ctl_elem_value *ucontrol) 935 { 936 struct snd_soc_component *component = snd_soc_kcontrol_component(kcontrol); 937 struct wm_adsp *dsps = snd_soc_component_get_drvdata(component); 938 struct soc_mixer_control *mc = 939 (struct soc_mixer_control *)kcontrol->private_value; 940 struct wm_adsp *dsp = &dsps[mc->shift - 1]; 941 942 ucontrol->value.integer.value[0] = dsp->preloaded; 943 944 return 0; 945 } 946 EXPORT_SYMBOL_GPL(wm_adsp2_preloader_get); 947 948 int wm_adsp2_preloader_put(struct snd_kcontrol *kcontrol, 949 struct snd_ctl_elem_value *ucontrol) 950 { 951 struct snd_soc_component *component = snd_soc_kcontrol_component(kcontrol); 952 struct wm_adsp *dsps = snd_soc_component_get_drvdata(component); 953 struct snd_soc_dapm_context *dapm = snd_soc_component_get_dapm(component); 954 struct soc_mixer_control *mc = 955 (struct soc_mixer_control *)kcontrol->private_value; 956 struct wm_adsp *dsp = &dsps[mc->shift - 1]; 957 char preload[32]; 958 959 if (dsp->preloaded == ucontrol->value.integer.value[0]) 960 return 0; 961 962 snprintf(preload, ARRAY_SIZE(preload), "%s Preload", dsp->cs_dsp.name); 963 964 if (ucontrol->value.integer.value[0] || dsp->toggle_preload) 965 snd_soc_component_force_enable_pin(component, preload); 966 else 967 snd_soc_component_disable_pin(component, preload); 968 969 snd_soc_dapm_sync(dapm); 970 971 flush_work(&dsp->boot_work); 972 973 dsp->preloaded = ucontrol->value.integer.value[0]; 974 975 if (dsp->toggle_preload) { 976 snd_soc_component_disable_pin(component, preload); 977 snd_soc_dapm_sync(dapm); 978 } 979 980 return 1; 981 } 982 EXPORT_SYMBOL_GPL(wm_adsp2_preloader_put); 983 984 int wm_adsp_power_up(struct wm_adsp *dsp, bool load_firmware) 985 { 986 int ret = 0; 987 char *wmfw_filename = NULL; 988 const struct firmware *wmfw_firmware = NULL; 989 char *coeff_filename = NULL; 990 const struct firmware *coeff_firmware = NULL; 991 992 if (load_firmware) { 993 ret = wm_adsp_request_firmware_files(dsp, 994 &wmfw_firmware, &wmfw_filename, 995 &coeff_firmware, &coeff_filename); 996 if (ret) 997 return ret; 998 } 999 1000 ret = cs_dsp_power_up(&dsp->cs_dsp, 1001 wmfw_firmware, wmfw_filename, 1002 coeff_firmware, coeff_filename, 1003 wm_adsp_fw_text[dsp->fw]); 1004 1005 wm_adsp_release_firmware_files(dsp, 1006 wmfw_firmware, wmfw_filename, 1007 coeff_firmware, coeff_filename); 1008 1009 return ret; 1010 } 1011 EXPORT_SYMBOL_GPL(wm_adsp_power_up); 1012 1013 void wm_adsp_power_down(struct wm_adsp *dsp) 1014 { 1015 cs_dsp_power_down(&dsp->cs_dsp); 1016 } 1017 EXPORT_SYMBOL_GPL(wm_adsp_power_down); 1018 1019 static void wm_adsp_boot_work(struct work_struct *work) 1020 { 1021 struct wm_adsp *dsp = container_of(work, 1022 struct wm_adsp, 1023 boot_work); 1024 1025 wm_adsp_power_up(dsp, true); 1026 } 1027 1028 int wm_adsp_early_event(struct snd_soc_dapm_widget *w, 1029 struct snd_kcontrol *kcontrol, int event) 1030 { 1031 struct snd_soc_component *component = snd_soc_dapm_to_component(w->dapm); 1032 struct wm_adsp *dsps = snd_soc_component_get_drvdata(component); 1033 struct wm_adsp *dsp = &dsps[w->shift]; 1034 1035 switch (event) { 1036 case SND_SOC_DAPM_PRE_PMU: 1037 queue_work(system_unbound_wq, &dsp->boot_work); 1038 break; 1039 case SND_SOC_DAPM_PRE_PMD: 1040 wm_adsp_power_down(dsp); 1041 break; 1042 default: 1043 break; 1044 } 1045 1046 return 0; 1047 } 1048 EXPORT_SYMBOL_GPL(wm_adsp_early_event); 1049 1050 static int wm_adsp_pre_run(struct cs_dsp *cs_dsp) 1051 { 1052 struct wm_adsp *dsp = container_of(cs_dsp, struct wm_adsp, cs_dsp); 1053 1054 if (!dsp->pre_run) 1055 return 0; 1056 1057 return (*dsp->pre_run)(dsp); 1058 } 1059 1060 static int wm_adsp_event_post_run(struct cs_dsp *cs_dsp) 1061 { 1062 struct wm_adsp *dsp = container_of(cs_dsp, struct wm_adsp, cs_dsp); 1063 1064 if (wm_adsp_fw[dsp->fw].num_caps != 0) 1065 return wm_adsp_buffer_init(dsp); 1066 1067 return 0; 1068 } 1069 1070 static void wm_adsp_event_post_stop(struct cs_dsp *cs_dsp) 1071 { 1072 struct wm_adsp *dsp = container_of(cs_dsp, struct wm_adsp, cs_dsp); 1073 1074 if (wm_adsp_fw[dsp->fw].num_caps != 0) 1075 wm_adsp_buffer_free(dsp); 1076 1077 dsp->fatal_error = false; 1078 } 1079 1080 int wm_adsp_run(struct wm_adsp *dsp) 1081 { 1082 flush_work(&dsp->boot_work); 1083 1084 return cs_dsp_run(&dsp->cs_dsp); 1085 } 1086 EXPORT_SYMBOL_GPL(wm_adsp_run); 1087 1088 void wm_adsp_stop(struct wm_adsp *dsp) 1089 { 1090 cs_dsp_stop(&dsp->cs_dsp); 1091 } 1092 EXPORT_SYMBOL_GPL(wm_adsp_stop); 1093 1094 int wm_adsp_event(struct snd_soc_dapm_widget *w, 1095 struct snd_kcontrol *kcontrol, int event) 1096 { 1097 struct snd_soc_component *component = snd_soc_dapm_to_component(w->dapm); 1098 struct wm_adsp *dsps = snd_soc_component_get_drvdata(component); 1099 struct wm_adsp *dsp = &dsps[w->shift]; 1100 1101 switch (event) { 1102 case SND_SOC_DAPM_POST_PMU: 1103 return wm_adsp_run(dsp); 1104 case SND_SOC_DAPM_PRE_PMD: 1105 wm_adsp_stop(dsp); 1106 return 0; 1107 default: 1108 return 0; 1109 } 1110 } 1111 EXPORT_SYMBOL_GPL(wm_adsp_event); 1112 1113 int wm_adsp2_component_probe(struct wm_adsp *dsp, struct snd_soc_component *component) 1114 { 1115 char preload[32]; 1116 1117 if (!dsp->cs_dsp.no_core_startstop) { 1118 snprintf(preload, ARRAY_SIZE(preload), "%s Preload", dsp->cs_dsp.name); 1119 snd_soc_component_disable_pin(component, preload); 1120 } 1121 1122 cs_dsp_init_debugfs(&dsp->cs_dsp, component->debugfs_root); 1123 1124 dsp->component = component; 1125 1126 return 0; 1127 } 1128 EXPORT_SYMBOL_GPL(wm_adsp2_component_probe); 1129 1130 int wm_adsp2_component_remove(struct wm_adsp *dsp, struct snd_soc_component *component) 1131 { 1132 cs_dsp_cleanup_debugfs(&dsp->cs_dsp); 1133 1134 return 0; 1135 } 1136 EXPORT_SYMBOL_GPL(wm_adsp2_component_remove); 1137 1138 int wm_adsp2_init(struct wm_adsp *dsp) 1139 { 1140 int ret; 1141 1142 INIT_WORK(&dsp->boot_work, wm_adsp_boot_work); 1143 1144 dsp->sys_config_size = sizeof(struct wm_adsp_system_config_xm_hdr); 1145 dsp->cs_dsp.client_ops = &wm_adsp2_client_ops; 1146 1147 ret = cs_dsp_adsp2_init(&dsp->cs_dsp); 1148 if (ret) 1149 return ret; 1150 1151 return wm_adsp_common_init(dsp); 1152 } 1153 EXPORT_SYMBOL_GPL(wm_adsp2_init); 1154 1155 int wm_halo_init(struct wm_adsp *dsp) 1156 { 1157 int ret; 1158 1159 INIT_WORK(&dsp->boot_work, wm_adsp_boot_work); 1160 1161 dsp->sys_config_size = sizeof(struct wm_halo_system_config_xm_hdr); 1162 dsp->cs_dsp.client_ops = &wm_adsp2_client_ops; 1163 1164 ret = cs_dsp_halo_init(&dsp->cs_dsp); 1165 if (ret) 1166 return ret; 1167 1168 return wm_adsp_common_init(dsp); 1169 } 1170 EXPORT_SYMBOL_GPL(wm_halo_init); 1171 1172 void wm_adsp2_remove(struct wm_adsp *dsp) 1173 { 1174 cs_dsp_remove(&dsp->cs_dsp); 1175 } 1176 EXPORT_SYMBOL_GPL(wm_adsp2_remove); 1177 1178 static inline int wm_adsp_compr_attached(struct wm_adsp_compr *compr) 1179 { 1180 return compr->buf != NULL; 1181 } 1182 1183 static int wm_adsp_compr_attach(struct wm_adsp_compr *compr) 1184 { 1185 struct wm_adsp_compr_buf *buf = NULL, *tmp; 1186 1187 if (compr->dsp->fatal_error) 1188 return -EINVAL; 1189 1190 list_for_each_entry(tmp, &compr->dsp->buffer_list, list) { 1191 if (!tmp->name || !strcmp(compr->name, tmp->name)) { 1192 buf = tmp; 1193 break; 1194 } 1195 } 1196 1197 if (!buf) 1198 return -EINVAL; 1199 1200 compr->buf = buf; 1201 buf->compr = compr; 1202 1203 return 0; 1204 } 1205 1206 static void wm_adsp_compr_detach(struct wm_adsp_compr *compr) 1207 { 1208 if (!compr) 1209 return; 1210 1211 /* Wake the poll so it can see buffer is no longer attached */ 1212 if (compr->stream) 1213 snd_compr_fragment_elapsed(compr->stream); 1214 1215 if (wm_adsp_compr_attached(compr)) { 1216 compr->buf->compr = NULL; 1217 compr->buf = NULL; 1218 } 1219 } 1220 1221 int wm_adsp_compr_open(struct wm_adsp *dsp, struct snd_compr_stream *stream) 1222 { 1223 struct wm_adsp_compr *compr, *tmp; 1224 struct snd_soc_pcm_runtime *rtd = stream->private_data; 1225 int ret = 0; 1226 1227 mutex_lock(&dsp->cs_dsp.pwr_lock); 1228 1229 if (wm_adsp_fw[dsp->fw].num_caps == 0) { 1230 adsp_err(dsp, "%s: Firmware does not support compressed API\n", 1231 snd_soc_rtd_to_codec(rtd, 0)->name); 1232 ret = -ENXIO; 1233 goto out; 1234 } 1235 1236 if (wm_adsp_fw[dsp->fw].compr_direction != stream->direction) { 1237 adsp_err(dsp, "%s: Firmware does not support stream direction\n", 1238 snd_soc_rtd_to_codec(rtd, 0)->name); 1239 ret = -EINVAL; 1240 goto out; 1241 } 1242 1243 list_for_each_entry(tmp, &dsp->compr_list, list) { 1244 if (!strcmp(tmp->name, snd_soc_rtd_to_codec(rtd, 0)->name)) { 1245 adsp_err(dsp, "%s: Only a single stream supported per dai\n", 1246 snd_soc_rtd_to_codec(rtd, 0)->name); 1247 ret = -EBUSY; 1248 goto out; 1249 } 1250 } 1251 1252 compr = kzalloc(sizeof(*compr), GFP_KERNEL); 1253 if (!compr) { 1254 ret = -ENOMEM; 1255 goto out; 1256 } 1257 1258 compr->dsp = dsp; 1259 compr->stream = stream; 1260 compr->name = snd_soc_rtd_to_codec(rtd, 0)->name; 1261 1262 list_add_tail(&compr->list, &dsp->compr_list); 1263 1264 stream->runtime->private_data = compr; 1265 1266 out: 1267 mutex_unlock(&dsp->cs_dsp.pwr_lock); 1268 1269 return ret; 1270 } 1271 EXPORT_SYMBOL_GPL(wm_adsp_compr_open); 1272 1273 int wm_adsp_compr_free(struct snd_soc_component *component, 1274 struct snd_compr_stream *stream) 1275 { 1276 struct wm_adsp_compr *compr = stream->runtime->private_data; 1277 struct wm_adsp *dsp = compr->dsp; 1278 1279 mutex_lock(&dsp->cs_dsp.pwr_lock); 1280 1281 wm_adsp_compr_detach(compr); 1282 list_del(&compr->list); 1283 1284 kfree(compr->raw_buf); 1285 kfree(compr); 1286 1287 mutex_unlock(&dsp->cs_dsp.pwr_lock); 1288 1289 return 0; 1290 } 1291 EXPORT_SYMBOL_GPL(wm_adsp_compr_free); 1292 1293 static int wm_adsp_compr_check_params(struct snd_compr_stream *stream, 1294 struct snd_compr_params *params) 1295 { 1296 struct wm_adsp_compr *compr = stream->runtime->private_data; 1297 struct wm_adsp *dsp = compr->dsp; 1298 const struct wm_adsp_fw_caps *caps; 1299 const struct snd_codec_desc *desc; 1300 int i, j; 1301 1302 if (params->buffer.fragment_size < WM_ADSP_MIN_FRAGMENT_SIZE || 1303 params->buffer.fragment_size > WM_ADSP_MAX_FRAGMENT_SIZE || 1304 params->buffer.fragments < WM_ADSP_MIN_FRAGMENTS || 1305 params->buffer.fragments > WM_ADSP_MAX_FRAGMENTS || 1306 params->buffer.fragment_size % CS_DSP_DATA_WORD_SIZE) { 1307 compr_err(compr, "Invalid buffer fragsize=%d fragments=%d\n", 1308 params->buffer.fragment_size, 1309 params->buffer.fragments); 1310 1311 return -EINVAL; 1312 } 1313 1314 for (i = 0; i < wm_adsp_fw[dsp->fw].num_caps; i++) { 1315 caps = &wm_adsp_fw[dsp->fw].caps[i]; 1316 desc = &caps->desc; 1317 1318 if (caps->id != params->codec.id) 1319 continue; 1320 1321 if (stream->direction == SND_COMPRESS_PLAYBACK) { 1322 if (desc->max_ch < params->codec.ch_out) 1323 continue; 1324 } else { 1325 if (desc->max_ch < params->codec.ch_in) 1326 continue; 1327 } 1328 1329 if (!(desc->formats & (1 << params->codec.format))) 1330 continue; 1331 1332 for (j = 0; j < desc->num_sample_rates; ++j) 1333 if (desc->sample_rates[j] == params->codec.sample_rate) 1334 return 0; 1335 } 1336 1337 compr_err(compr, "Invalid params id=%u ch=%u,%u rate=%u fmt=%u\n", 1338 params->codec.id, params->codec.ch_in, params->codec.ch_out, 1339 params->codec.sample_rate, params->codec.format); 1340 return -EINVAL; 1341 } 1342 1343 static inline unsigned int wm_adsp_compr_frag_words(struct wm_adsp_compr *compr) 1344 { 1345 return compr->size.fragment_size / CS_DSP_DATA_WORD_SIZE; 1346 } 1347 1348 int wm_adsp_compr_set_params(struct snd_soc_component *component, 1349 struct snd_compr_stream *stream, 1350 struct snd_compr_params *params) 1351 { 1352 struct wm_adsp_compr *compr = stream->runtime->private_data; 1353 unsigned int size; 1354 int ret; 1355 1356 ret = wm_adsp_compr_check_params(stream, params); 1357 if (ret) 1358 return ret; 1359 1360 compr->size = params->buffer; 1361 1362 compr_dbg(compr, "fragment_size=%d fragments=%d\n", 1363 compr->size.fragment_size, compr->size.fragments); 1364 1365 size = wm_adsp_compr_frag_words(compr) * sizeof(*compr->raw_buf); 1366 compr->raw_buf = kmalloc(size, GFP_DMA | GFP_KERNEL); 1367 if (!compr->raw_buf) 1368 return -ENOMEM; 1369 1370 compr->sample_rate = params->codec.sample_rate; 1371 1372 return 0; 1373 } 1374 EXPORT_SYMBOL_GPL(wm_adsp_compr_set_params); 1375 1376 int wm_adsp_compr_get_caps(struct snd_soc_component *component, 1377 struct snd_compr_stream *stream, 1378 struct snd_compr_caps *caps) 1379 { 1380 struct wm_adsp_compr *compr = stream->runtime->private_data; 1381 int fw = compr->dsp->fw; 1382 int i; 1383 1384 if (wm_adsp_fw[fw].caps) { 1385 for (i = 0; i < wm_adsp_fw[fw].num_caps; i++) 1386 caps->codecs[i] = wm_adsp_fw[fw].caps[i].id; 1387 1388 caps->num_codecs = i; 1389 caps->direction = wm_adsp_fw[fw].compr_direction; 1390 1391 caps->min_fragment_size = WM_ADSP_MIN_FRAGMENT_SIZE; 1392 caps->max_fragment_size = WM_ADSP_MAX_FRAGMENT_SIZE; 1393 caps->min_fragments = WM_ADSP_MIN_FRAGMENTS; 1394 caps->max_fragments = WM_ADSP_MAX_FRAGMENTS; 1395 } 1396 1397 return 0; 1398 } 1399 EXPORT_SYMBOL_GPL(wm_adsp_compr_get_caps); 1400 1401 static inline int wm_adsp_buffer_read(struct wm_adsp_compr_buf *buf, 1402 unsigned int field_offset, u32 *data) 1403 { 1404 return cs_dsp_read_data_word(&buf->dsp->cs_dsp, buf->host_buf_mem_type, 1405 buf->host_buf_ptr + field_offset, data); 1406 } 1407 1408 static inline int wm_adsp_buffer_write(struct wm_adsp_compr_buf *buf, 1409 unsigned int field_offset, u32 data) 1410 { 1411 return cs_dsp_write_data_word(&buf->dsp->cs_dsp, buf->host_buf_mem_type, 1412 buf->host_buf_ptr + field_offset, 1413 data); 1414 } 1415 1416 static int wm_adsp_buffer_populate(struct wm_adsp_compr_buf *buf) 1417 { 1418 const struct wm_adsp_fw_caps *caps = wm_adsp_fw[buf->dsp->fw].caps; 1419 struct wm_adsp_buffer_region *region; 1420 u32 offset = 0; 1421 int i, ret; 1422 1423 buf->regions = kcalloc(caps->num_regions, sizeof(*buf->regions), 1424 GFP_KERNEL); 1425 if (!buf->regions) 1426 return -ENOMEM; 1427 1428 for (i = 0; i < caps->num_regions; ++i) { 1429 region = &buf->regions[i]; 1430 1431 region->offset = offset; 1432 region->mem_type = caps->region_defs[i].mem_type; 1433 1434 ret = wm_adsp_buffer_read(buf, caps->region_defs[i].base_offset, 1435 ®ion->base_addr); 1436 if (ret < 0) 1437 goto err; 1438 1439 ret = wm_adsp_buffer_read(buf, caps->region_defs[i].size_offset, 1440 &offset); 1441 if (ret < 0) 1442 goto err; 1443 1444 region->cumulative_size = offset; 1445 1446 compr_dbg(buf, 1447 "region=%d type=%d base=%08x off=%08x size=%08x\n", 1448 i, region->mem_type, region->base_addr, 1449 region->offset, region->cumulative_size); 1450 } 1451 1452 return 0; 1453 1454 err: 1455 kfree(buf->regions); 1456 return ret; 1457 } 1458 1459 static void wm_adsp_buffer_clear(struct wm_adsp_compr_buf *buf) 1460 { 1461 buf->irq_count = 0xFFFFFFFF; 1462 buf->read_index = -1; 1463 buf->avail = 0; 1464 } 1465 1466 static struct wm_adsp_compr_buf *wm_adsp_buffer_alloc(struct wm_adsp *dsp) 1467 { 1468 struct wm_adsp_compr_buf *buf; 1469 1470 buf = kzalloc(sizeof(*buf), GFP_KERNEL); 1471 if (!buf) 1472 return NULL; 1473 1474 buf->dsp = dsp; 1475 1476 wm_adsp_buffer_clear(buf); 1477 1478 return buf; 1479 } 1480 1481 static int wm_adsp_buffer_parse_legacy(struct wm_adsp *dsp) 1482 { 1483 struct cs_dsp_alg_region *alg_region; 1484 struct wm_adsp_compr_buf *buf; 1485 u32 xmalg, addr, magic; 1486 int i, ret; 1487 1488 alg_region = cs_dsp_find_alg_region(&dsp->cs_dsp, WMFW_ADSP2_XM, dsp->cs_dsp.fw_id); 1489 if (!alg_region) { 1490 adsp_err(dsp, "No algorithm region found\n"); 1491 return -EINVAL; 1492 } 1493 1494 xmalg = dsp->sys_config_size / sizeof(__be32); 1495 1496 addr = alg_region->base + xmalg + ALG_XM_FIELD(magic); 1497 ret = cs_dsp_read_data_word(&dsp->cs_dsp, WMFW_ADSP2_XM, addr, &magic); 1498 if (ret < 0) 1499 return ret; 1500 1501 if (magic != WM_ADSP_ALG_XM_STRUCT_MAGIC) 1502 return -ENODEV; 1503 1504 buf = wm_adsp_buffer_alloc(dsp); 1505 if (!buf) 1506 return -ENOMEM; 1507 1508 addr = alg_region->base + xmalg + ALG_XM_FIELD(host_buf_ptr); 1509 for (i = 0; i < 5; ++i) { 1510 ret = cs_dsp_read_data_word(&dsp->cs_dsp, WMFW_ADSP2_XM, addr, 1511 &buf->host_buf_ptr); 1512 if (ret < 0) 1513 goto err; 1514 1515 if (buf->host_buf_ptr) 1516 break; 1517 1518 usleep_range(1000, 2000); 1519 } 1520 1521 if (!buf->host_buf_ptr) { 1522 ret = -EIO; 1523 goto err; 1524 } 1525 1526 buf->host_buf_mem_type = WMFW_ADSP2_XM; 1527 1528 ret = wm_adsp_buffer_populate(buf); 1529 if (ret < 0) 1530 goto err; 1531 1532 list_add_tail(&buf->list, &dsp->buffer_list); 1533 1534 compr_dbg(buf, "legacy host_buf_ptr=%x\n", buf->host_buf_ptr); 1535 1536 return 0; 1537 1538 err: 1539 kfree(buf); 1540 1541 return ret; 1542 } 1543 1544 static int wm_adsp_buffer_parse_coeff(struct cs_dsp_coeff_ctl *cs_ctl) 1545 { 1546 struct wm_adsp_host_buf_coeff_v1 coeff_v1; 1547 struct wm_adsp_compr_buf *buf; 1548 struct wm_adsp *dsp = container_of(cs_ctl->dsp, struct wm_adsp, cs_dsp); 1549 unsigned int version = 0; 1550 int ret, i; 1551 1552 for (i = 0; i < 5; ++i) { 1553 ret = cs_dsp_coeff_read_ctrl(cs_ctl, 0, &coeff_v1, 1554 min(cs_ctl->len, sizeof(coeff_v1))); 1555 if (ret < 0) 1556 return ret; 1557 1558 if (coeff_v1.host_buf_ptr) 1559 break; 1560 1561 usleep_range(1000, 2000); 1562 } 1563 1564 if (!coeff_v1.host_buf_ptr) { 1565 adsp_err(dsp, "Failed to acquire host buffer\n"); 1566 return -EIO; 1567 } 1568 1569 buf = wm_adsp_buffer_alloc(dsp); 1570 if (!buf) 1571 return -ENOMEM; 1572 1573 buf->host_buf_mem_type = cs_ctl->alg_region.type; 1574 buf->host_buf_ptr = be32_to_cpu(coeff_v1.host_buf_ptr); 1575 1576 ret = wm_adsp_buffer_populate(buf); 1577 if (ret < 0) 1578 goto err; 1579 1580 /* 1581 * v0 host_buffer coefficients didn't have versioning, so if the 1582 * control is one word, assume version 0. 1583 */ 1584 if (cs_ctl->len == 4) 1585 goto done; 1586 1587 version = be32_to_cpu(coeff_v1.versions) & HOST_BUF_COEFF_COMPAT_VER_MASK; 1588 version >>= HOST_BUF_COEFF_COMPAT_VER_SHIFT; 1589 1590 if (version > HOST_BUF_COEFF_SUPPORTED_COMPAT_VER) { 1591 adsp_err(dsp, 1592 "Host buffer coeff ver %u > supported version %u\n", 1593 version, HOST_BUF_COEFF_SUPPORTED_COMPAT_VER); 1594 ret = -EINVAL; 1595 goto err; 1596 } 1597 1598 cs_dsp_remove_padding((u32 *)&coeff_v1.name, ARRAY_SIZE(coeff_v1.name)); 1599 1600 buf->name = kasprintf(GFP_KERNEL, "%s-dsp-%s", dsp->part, 1601 (char *)&coeff_v1.name); 1602 1603 done: 1604 list_add_tail(&buf->list, &dsp->buffer_list); 1605 1606 compr_dbg(buf, "host_buf_ptr=%x coeff version %u\n", 1607 buf->host_buf_ptr, version); 1608 1609 return version; 1610 1611 err: 1612 kfree(buf); 1613 1614 return ret; 1615 } 1616 1617 static int wm_adsp_buffer_init(struct wm_adsp *dsp) 1618 { 1619 struct cs_dsp_coeff_ctl *cs_ctl; 1620 int ret; 1621 1622 list_for_each_entry(cs_ctl, &dsp->cs_dsp.ctl_list, list) { 1623 if (cs_ctl->type != WMFW_CTL_TYPE_HOST_BUFFER) 1624 continue; 1625 1626 if (!cs_ctl->enabled) 1627 continue; 1628 1629 ret = wm_adsp_buffer_parse_coeff(cs_ctl); 1630 if (ret < 0) { 1631 adsp_err(dsp, "Failed to parse coeff: %d\n", ret); 1632 goto error; 1633 } else if (ret == 0) { 1634 /* Only one buffer supported for version 0 */ 1635 return 0; 1636 } 1637 } 1638 1639 if (list_empty(&dsp->buffer_list)) { 1640 /* Fall back to legacy support */ 1641 ret = wm_adsp_buffer_parse_legacy(dsp); 1642 if (ret == -ENODEV) 1643 adsp_info(dsp, "Legacy support not available\n"); 1644 else if (ret) 1645 adsp_warn(dsp, "Failed to parse legacy: %d\n", ret); 1646 } 1647 1648 return 0; 1649 1650 error: 1651 wm_adsp_buffer_free(dsp); 1652 return ret; 1653 } 1654 1655 static int wm_adsp_buffer_free(struct wm_adsp *dsp) 1656 { 1657 struct wm_adsp_compr_buf *buf, *tmp; 1658 1659 list_for_each_entry_safe(buf, tmp, &dsp->buffer_list, list) { 1660 wm_adsp_compr_detach(buf->compr); 1661 1662 kfree(buf->name); 1663 kfree(buf->regions); 1664 list_del(&buf->list); 1665 kfree(buf); 1666 } 1667 1668 return 0; 1669 } 1670 1671 static int wm_adsp_buffer_get_error(struct wm_adsp_compr_buf *buf) 1672 { 1673 int ret; 1674 1675 ret = wm_adsp_buffer_read(buf, HOST_BUFFER_FIELD(error), &buf->error); 1676 if (ret < 0) { 1677 compr_err(buf, "Failed to check buffer error: %d\n", ret); 1678 return ret; 1679 } 1680 if (buf->error != 0) { 1681 compr_err(buf, "Buffer error occurred: %d\n", buf->error); 1682 return -EIO; 1683 } 1684 1685 return 0; 1686 } 1687 1688 int wm_adsp_compr_trigger(struct snd_soc_component *component, 1689 struct snd_compr_stream *stream, int cmd) 1690 { 1691 struct wm_adsp_compr *compr = stream->runtime->private_data; 1692 struct wm_adsp *dsp = compr->dsp; 1693 int ret = 0; 1694 1695 compr_dbg(compr, "Trigger: %d\n", cmd); 1696 1697 mutex_lock(&dsp->cs_dsp.pwr_lock); 1698 1699 switch (cmd) { 1700 case SNDRV_PCM_TRIGGER_START: 1701 if (!wm_adsp_compr_attached(compr)) { 1702 ret = wm_adsp_compr_attach(compr); 1703 if (ret < 0) { 1704 compr_err(compr, "Failed to link buffer and stream: %d\n", 1705 ret); 1706 break; 1707 } 1708 } 1709 1710 ret = wm_adsp_buffer_get_error(compr->buf); 1711 if (ret < 0) 1712 break; 1713 1714 /* Trigger the IRQ at one fragment of data */ 1715 ret = wm_adsp_buffer_write(compr->buf, 1716 HOST_BUFFER_FIELD(high_water_mark), 1717 wm_adsp_compr_frag_words(compr)); 1718 if (ret < 0) { 1719 compr_err(compr, "Failed to set high water mark: %d\n", 1720 ret); 1721 break; 1722 } 1723 break; 1724 case SNDRV_PCM_TRIGGER_STOP: 1725 if (wm_adsp_compr_attached(compr)) 1726 wm_adsp_buffer_clear(compr->buf); 1727 break; 1728 default: 1729 ret = -EINVAL; 1730 break; 1731 } 1732 1733 mutex_unlock(&dsp->cs_dsp.pwr_lock); 1734 1735 return ret; 1736 } 1737 EXPORT_SYMBOL_GPL(wm_adsp_compr_trigger); 1738 1739 static inline int wm_adsp_buffer_size(struct wm_adsp_compr_buf *buf) 1740 { 1741 int last_region = wm_adsp_fw[buf->dsp->fw].caps->num_regions - 1; 1742 1743 return buf->regions[last_region].cumulative_size; 1744 } 1745 1746 static int wm_adsp_buffer_update_avail(struct wm_adsp_compr_buf *buf) 1747 { 1748 u32 next_read_index, next_write_index; 1749 int write_index, read_index, avail; 1750 int ret; 1751 1752 /* Only sync read index if we haven't already read a valid index */ 1753 if (buf->read_index < 0) { 1754 ret = wm_adsp_buffer_read(buf, 1755 HOST_BUFFER_FIELD(next_read_index), 1756 &next_read_index); 1757 if (ret < 0) 1758 return ret; 1759 1760 read_index = sign_extend32(next_read_index, 23); 1761 1762 if (read_index < 0) { 1763 compr_dbg(buf, "Avail check on unstarted stream\n"); 1764 return 0; 1765 } 1766 1767 buf->read_index = read_index; 1768 } 1769 1770 ret = wm_adsp_buffer_read(buf, HOST_BUFFER_FIELD(next_write_index), 1771 &next_write_index); 1772 if (ret < 0) 1773 return ret; 1774 1775 write_index = sign_extend32(next_write_index, 23); 1776 1777 avail = write_index - buf->read_index; 1778 if (avail < 0) 1779 avail += wm_adsp_buffer_size(buf); 1780 1781 compr_dbg(buf, "readindex=0x%x, writeindex=0x%x, avail=%d\n", 1782 buf->read_index, write_index, avail * CS_DSP_DATA_WORD_SIZE); 1783 1784 buf->avail = avail; 1785 1786 return 0; 1787 } 1788 1789 int wm_adsp_compr_handle_irq(struct wm_adsp *dsp) 1790 { 1791 struct wm_adsp_compr_buf *buf; 1792 struct wm_adsp_compr *compr; 1793 int ret = 0; 1794 1795 mutex_lock(&dsp->cs_dsp.pwr_lock); 1796 1797 if (list_empty(&dsp->buffer_list)) { 1798 ret = -ENODEV; 1799 goto out; 1800 } 1801 1802 adsp_dbg(dsp, "Handling buffer IRQ\n"); 1803 1804 list_for_each_entry(buf, &dsp->buffer_list, list) { 1805 compr = buf->compr; 1806 1807 ret = wm_adsp_buffer_get_error(buf); 1808 if (ret < 0) 1809 goto out_notify; /* Wake poll to report error */ 1810 1811 ret = wm_adsp_buffer_read(buf, HOST_BUFFER_FIELD(irq_count), 1812 &buf->irq_count); 1813 if (ret < 0) { 1814 compr_err(buf, "Failed to get irq_count: %d\n", ret); 1815 goto out; 1816 } 1817 1818 ret = wm_adsp_buffer_update_avail(buf); 1819 if (ret < 0) { 1820 compr_err(buf, "Error reading avail: %d\n", ret); 1821 goto out; 1822 } 1823 1824 if (wm_adsp_fw[dsp->fw].voice_trigger && buf->irq_count == 2) 1825 ret = WM_ADSP_COMPR_VOICE_TRIGGER; 1826 1827 out_notify: 1828 if (compr && compr->stream) 1829 snd_compr_fragment_elapsed(compr->stream); 1830 } 1831 1832 out: 1833 mutex_unlock(&dsp->cs_dsp.pwr_lock); 1834 1835 return ret; 1836 } 1837 EXPORT_SYMBOL_GPL(wm_adsp_compr_handle_irq); 1838 1839 static int wm_adsp_buffer_reenable_irq(struct wm_adsp_compr_buf *buf) 1840 { 1841 if (buf->irq_count & 0x01) 1842 return 0; 1843 1844 compr_dbg(buf, "Enable IRQ(0x%x) for next fragment\n", buf->irq_count); 1845 1846 buf->irq_count |= 0x01; 1847 1848 return wm_adsp_buffer_write(buf, HOST_BUFFER_FIELD(irq_ack), 1849 buf->irq_count); 1850 } 1851 1852 int wm_adsp_compr_pointer(struct snd_soc_component *component, 1853 struct snd_compr_stream *stream, 1854 struct snd_compr_tstamp *tstamp) 1855 { 1856 struct wm_adsp_compr *compr = stream->runtime->private_data; 1857 struct wm_adsp *dsp = compr->dsp; 1858 struct wm_adsp_compr_buf *buf; 1859 int ret = 0; 1860 1861 compr_dbg(compr, "Pointer request\n"); 1862 1863 mutex_lock(&dsp->cs_dsp.pwr_lock); 1864 1865 buf = compr->buf; 1866 1867 if (dsp->fatal_error || !buf || buf->error) { 1868 snd_compr_stop_error(stream, SNDRV_PCM_STATE_XRUN); 1869 ret = -EIO; 1870 goto out; 1871 } 1872 1873 if (buf->avail < wm_adsp_compr_frag_words(compr)) { 1874 ret = wm_adsp_buffer_update_avail(buf); 1875 if (ret < 0) { 1876 compr_err(compr, "Error reading avail: %d\n", ret); 1877 goto out; 1878 } 1879 1880 /* 1881 * If we really have less than 1 fragment available tell the 1882 * DSP to inform us once a whole fragment is available. 1883 */ 1884 if (buf->avail < wm_adsp_compr_frag_words(compr)) { 1885 ret = wm_adsp_buffer_get_error(buf); 1886 if (ret < 0) { 1887 if (buf->error) 1888 snd_compr_stop_error(stream, 1889 SNDRV_PCM_STATE_XRUN); 1890 goto out; 1891 } 1892 1893 ret = wm_adsp_buffer_reenable_irq(buf); 1894 if (ret < 0) { 1895 compr_err(compr, "Failed to re-enable buffer IRQ: %d\n", 1896 ret); 1897 goto out; 1898 } 1899 } 1900 } 1901 1902 tstamp->copied_total = compr->copied_total; 1903 tstamp->copied_total += buf->avail * CS_DSP_DATA_WORD_SIZE; 1904 tstamp->sampling_rate = compr->sample_rate; 1905 1906 out: 1907 mutex_unlock(&dsp->cs_dsp.pwr_lock); 1908 1909 return ret; 1910 } 1911 EXPORT_SYMBOL_GPL(wm_adsp_compr_pointer); 1912 1913 static int wm_adsp_buffer_capture_block(struct wm_adsp_compr *compr, int target) 1914 { 1915 struct wm_adsp_compr_buf *buf = compr->buf; 1916 unsigned int adsp_addr; 1917 int mem_type, nwords, max_read; 1918 int i, ret; 1919 1920 /* Calculate read parameters */ 1921 for (i = 0; i < wm_adsp_fw[buf->dsp->fw].caps->num_regions; ++i) 1922 if (buf->read_index < buf->regions[i].cumulative_size) 1923 break; 1924 1925 if (i == wm_adsp_fw[buf->dsp->fw].caps->num_regions) 1926 return -EINVAL; 1927 1928 mem_type = buf->regions[i].mem_type; 1929 adsp_addr = buf->regions[i].base_addr + 1930 (buf->read_index - buf->regions[i].offset); 1931 1932 max_read = wm_adsp_compr_frag_words(compr); 1933 nwords = buf->regions[i].cumulative_size - buf->read_index; 1934 1935 if (nwords > target) 1936 nwords = target; 1937 if (nwords > buf->avail) 1938 nwords = buf->avail; 1939 if (nwords > max_read) 1940 nwords = max_read; 1941 if (!nwords) 1942 return 0; 1943 1944 /* Read data from DSP */ 1945 ret = cs_dsp_read_raw_data_block(&buf->dsp->cs_dsp, mem_type, adsp_addr, 1946 nwords, (__be32 *)compr->raw_buf); 1947 if (ret < 0) 1948 return ret; 1949 1950 cs_dsp_remove_padding(compr->raw_buf, nwords); 1951 1952 /* update read index to account for words read */ 1953 buf->read_index += nwords; 1954 if (buf->read_index == wm_adsp_buffer_size(buf)) 1955 buf->read_index = 0; 1956 1957 ret = wm_adsp_buffer_write(buf, HOST_BUFFER_FIELD(next_read_index), 1958 buf->read_index); 1959 if (ret < 0) 1960 return ret; 1961 1962 /* update avail to account for words read */ 1963 buf->avail -= nwords; 1964 1965 return nwords; 1966 } 1967 1968 static int wm_adsp_compr_read(struct wm_adsp_compr *compr, 1969 char __user *buf, size_t count) 1970 { 1971 struct wm_adsp *dsp = compr->dsp; 1972 int ntotal = 0; 1973 int nwords, nbytes; 1974 1975 compr_dbg(compr, "Requested read of %zu bytes\n", count); 1976 1977 if (dsp->fatal_error || !compr->buf || compr->buf->error) { 1978 snd_compr_stop_error(compr->stream, SNDRV_PCM_STATE_XRUN); 1979 return -EIO; 1980 } 1981 1982 count /= CS_DSP_DATA_WORD_SIZE; 1983 1984 do { 1985 nwords = wm_adsp_buffer_capture_block(compr, count); 1986 if (nwords < 0) { 1987 compr_err(compr, "Failed to capture block: %d\n", 1988 nwords); 1989 return nwords; 1990 } 1991 1992 nbytes = nwords * CS_DSP_DATA_WORD_SIZE; 1993 1994 compr_dbg(compr, "Read %d bytes\n", nbytes); 1995 1996 if (copy_to_user(buf + ntotal, compr->raw_buf, nbytes)) { 1997 compr_err(compr, "Failed to copy data to user: %d, %d\n", 1998 ntotal, nbytes); 1999 return -EFAULT; 2000 } 2001 2002 count -= nwords; 2003 ntotal += nbytes; 2004 } while (nwords > 0 && count > 0); 2005 2006 compr->copied_total += ntotal; 2007 2008 return ntotal; 2009 } 2010 2011 int wm_adsp_compr_copy(struct snd_soc_component *component, 2012 struct snd_compr_stream *stream, char __user *buf, 2013 size_t count) 2014 { 2015 struct wm_adsp_compr *compr = stream->runtime->private_data; 2016 struct wm_adsp *dsp = compr->dsp; 2017 int ret; 2018 2019 mutex_lock(&dsp->cs_dsp.pwr_lock); 2020 2021 if (stream->direction == SND_COMPRESS_CAPTURE) 2022 ret = wm_adsp_compr_read(compr, buf, count); 2023 else 2024 ret = -ENOTSUPP; 2025 2026 mutex_unlock(&dsp->cs_dsp.pwr_lock); 2027 2028 return ret; 2029 } 2030 EXPORT_SYMBOL_GPL(wm_adsp_compr_copy); 2031 2032 static void wm_adsp_fatal_error(struct cs_dsp *cs_dsp) 2033 { 2034 struct wm_adsp *dsp = container_of(cs_dsp, struct wm_adsp, cs_dsp); 2035 struct wm_adsp_compr *compr; 2036 2037 dsp->fatal_error = true; 2038 2039 list_for_each_entry(compr, &dsp->compr_list, list) { 2040 if (compr->stream) 2041 snd_compr_fragment_elapsed(compr->stream); 2042 } 2043 } 2044 2045 irqreturn_t wm_adsp2_bus_error(int irq, void *data) 2046 { 2047 struct wm_adsp *dsp = (struct wm_adsp *)data; 2048 2049 cs_dsp_adsp2_bus_error(&dsp->cs_dsp); 2050 2051 return IRQ_HANDLED; 2052 } 2053 EXPORT_SYMBOL_GPL(wm_adsp2_bus_error); 2054 2055 irqreturn_t wm_halo_bus_error(int irq, void *data) 2056 { 2057 struct wm_adsp *dsp = (struct wm_adsp *)data; 2058 2059 cs_dsp_halo_bus_error(&dsp->cs_dsp); 2060 2061 return IRQ_HANDLED; 2062 } 2063 EXPORT_SYMBOL_GPL(wm_halo_bus_error); 2064 2065 irqreturn_t wm_halo_wdt_expire(int irq, void *data) 2066 { 2067 struct wm_adsp *dsp = data; 2068 2069 cs_dsp_halo_wdt_expire(&dsp->cs_dsp); 2070 2071 return IRQ_HANDLED; 2072 } 2073 EXPORT_SYMBOL_GPL(wm_halo_wdt_expire); 2074 2075 static const struct cs_dsp_client_ops wm_adsp1_client_ops = { 2076 .control_add = wm_adsp_control_add_cb, 2077 .control_remove = wm_adsp_control_remove, 2078 }; 2079 2080 static const struct cs_dsp_client_ops wm_adsp2_client_ops = { 2081 .control_add = wm_adsp_control_add_cb, 2082 .control_remove = wm_adsp_control_remove, 2083 .pre_run = wm_adsp_pre_run, 2084 .post_run = wm_adsp_event_post_run, 2085 .post_stop = wm_adsp_event_post_stop, 2086 .watchdog_expired = wm_adsp_fatal_error, 2087 }; 2088 2089 MODULE_DESCRIPTION("Cirrus Logic ASoC DSP Support"); 2090 MODULE_LICENSE("GPL v2"); 2091 MODULE_IMPORT_NS("FW_CS_DSP"); 2092