Git Repo - linux.git/blob - sound/soc/codecs/wm

1 // SPDX-License-Identifier: GPL-2.0-only

2 /*

3 * wm_adsp.c -- Wolfson ADSP support

4 *

6 *

7 * Author: Mark Brown <[email protected]>

8 */

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>

33 #include "wm_adsp.h"

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__)

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__)

53 #define ADSP_MAX_STD_CTRL_SIZE 512

55 static const struct cs_dsp_client_ops wm_adsp1_client_ops;

56 static const struct cs_dsp_client_ops wm_adsp2_client_ops;

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

72 #define WM_ADSP_NUM_FW 13

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 };

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 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 EXPORT_SYMBOL_GPL(wm_adsp_control_add);

662

663 static int wm_adsp_control_add_cb(struct cs_dsp_coeff_ctl *cs_ctl)

664 {

665 struct wm_adsp *dsp = container_of(cs_ctl->dsp, struct wm_adsp, cs_dsp);

666

667 if (dsp->control_add)

668 return (dsp->control_add)(dsp, cs_ctl);

669 else

670 return wm_adsp_control_add(cs_ctl);

671 }

672

673 static void wm_adsp_control_remove(struct cs_dsp_coeff_ctl *cs_ctl)

674 {

675 struct wm_coeff_ctl *ctl = cs_ctl->priv;

676

677 cancel_work_sync(&ctl->work);

678

679 kfree(ctl->name);

680 kfree(ctl);

681 }

682

683 int wm_adsp_write_ctl(struct wm_adsp *dsp, const char *name, int type,

684 unsigned int alg, void *buf, size_t len)

685 {

686 struct cs_dsp_coeff_ctl *cs_ctl;

687 int ret;

688

689 mutex_lock(&dsp->cs_dsp.pwr_lock);

690 cs_ctl = cs_dsp_get_ctl(&dsp->cs_dsp, name, type, alg);

691 ret = cs_dsp_coeff_write_ctrl(cs_ctl, 0, buf, len);

692 mutex_unlock(&dsp->cs_dsp.pwr_lock);

693

694 if (ret < 0)

695 return ret;

696

697 return 0;

698 }

699 EXPORT_SYMBOL_GPL(wm_adsp_write_ctl);

700

701 int wm_adsp_read_ctl(struct wm_adsp *dsp, const char *name, int type,

702 unsigned int alg, void *buf, size_t len)

703 {

704 int ret;

705

706 mutex_lock(&dsp->cs_dsp.pwr_lock);

707 ret = cs_dsp_coeff_read_ctrl(cs_dsp_get_ctl(&dsp->cs_dsp, name, type, alg),

708 0, buf, len);

709 mutex_unlock(&dsp->cs_dsp.pwr_lock);

710

711 return ret;

712 }

713 EXPORT_SYMBOL_GPL(wm_adsp_read_ctl);

714

715 static void wm_adsp_release_firmware_files(struct wm_adsp *dsp,

716 const struct firmware *wmfw_firmware,

717 char *wmfw_filename,

718 const struct firmware *coeff_firmware,

719 char *coeff_filename)

720 {

721 if (wmfw_firmware)

722 release_firmware(wmfw_firmware);

723 kfree(wmfw_filename);

724

725 if (coeff_firmware)

726 release_firmware(coeff_firmware);

727 kfree(coeff_filename);

728 }

729

730 static int wm_adsp_request_firmware_file(struct wm_adsp *dsp,

731 const struct firmware **firmware, char **filename,

732 const char *dir, const char *system_name,

733 const char *asoc_component_prefix,

734 const char *filetype)

735 {

736 struct cs_dsp *cs_dsp = &dsp->cs_dsp;

737 const char *fwf;

738 char *s, c;

739 int ret = 0;

740

741 if (dsp->fwf_name)

742 fwf = dsp->fwf_name;

743 else

744 fwf = dsp->cs_dsp.name;

745

746 if (system_name && asoc_component_prefix)

747 *filename = kasprintf(GFP_KERNEL, "%s%s-%s-%s-%s-%s.%s", dir, dsp->part,

748 fwf, wm_adsp_fw[dsp->fw].file, system_name,

749 asoc_component_prefix, filetype);

750 else if (system_name)

751 *filename = kasprintf(GFP_KERNEL, "%s%s-%s-%s-%s.%s", dir, dsp->part,

752 fwf, wm_adsp_fw[dsp->fw].file, system_name,

753 filetype);

754 else

755 *filename = kasprintf(GFP_KERNEL, "%s%s-%s-%s.%s", dir, dsp->part, fwf,

756 wm_adsp_fw[dsp->fw].file, filetype);

757

758 if (*filename == NULL)

759 return -ENOMEM;

760

761 /*

762 * Make sure that filename is lower-case and any non alpha-numeric

763 * characters except full stop and forward slash are replaced with

764 * hyphens.

765 */

766 s = *filename;

767 while (*s) {

768 c = *s;

769 if (isalnum(c))

770 *s = tolower(c);

771 else if ((c != '.') && (c != '/'))

772 *s = '-';

773 s++;

774 }

775

776 ret = firmware_request_nowarn(firmware, *filename, cs_dsp->dev);

777 if (ret != 0) {

778 adsp_dbg(dsp, "Failed to request '%s'\n", *filename);

779 kfree(*filename);

780 *filename = NULL;

781 } else {

782 adsp_dbg(dsp, "Found '%s'\n", *filename);

783 }

784

785 return ret;

786 }

787

788 static const char *cirrus_dir = "cirrus/";

789 static int wm_adsp_request_firmware_files(struct wm_adsp *dsp,

790 const struct firmware **wmfw_firmware,

791 char **wmfw_filename,

792 const struct firmware **coeff_firmware,

793 char **coeff_filename)

794 {

795 const char *system_name = dsp->system_name;

796 const char *asoc_component_prefix = dsp->component->name_prefix;

797 int ret = 0;

798

799 if (system_name && asoc_component_prefix) {

800 if (!wm_adsp_request_firmware_file(dsp, wmfw_firmware, wmfw_filename,

801 cirrus_dir, system_name,

802 asoc_component_prefix, "wmfw")) {

803 wm_adsp_request_firmware_file(dsp, coeff_firmware, coeff_filename,

804 cirrus_dir, system_name,

805 asoc_component_prefix, "bin");

806 return 0;

807 }

808 }

809

810 if (system_name) {

811 if (!wm_adsp_request_firmware_file(dsp, wmfw_firmware, wmfw_filename,

812 cirrus_dir, system_name,

813 NULL, "wmfw")) {

814 if (asoc_component_prefix)

815 wm_adsp_request_firmware_file(dsp, coeff_firmware, coeff_filename,

816 cirrus_dir, system_name,

817 asoc_component_prefix, "bin");

818

819 if (!*coeff_firmware)

820 wm_adsp_request_firmware_file(dsp, coeff_firmware, coeff_filename,

821 cirrus_dir, system_name,

822 NULL, "bin");

823 return 0;

824 }

825 }

826

827 /* Check system-specific bin without wmfw before falling back to generic */

828 if (dsp->wmfw_optional && system_name) {

829 if (asoc_component_prefix)

830 wm_adsp_request_firmware_file(dsp, coeff_firmware, coeff_filename,

831 cirrus_dir, system_name,

832 asoc_component_prefix, "bin");

833

834 if (!*coeff_firmware)

835 wm_adsp_request_firmware_file(dsp, coeff_firmware, coeff_filename,

836 cirrus_dir, system_name,

837 NULL, "bin");

838

839 if (*coeff_firmware)

840 return 0;

841 }

842

843 /* Check legacy location */

844 if (!wm_adsp_request_firmware_file(dsp, wmfw_firmware, wmfw_filename,

845 "", NULL, NULL, "wmfw")) {

846 wm_adsp_request_firmware_file(dsp, coeff_firmware, coeff_filename,

847 "", NULL, NULL, "bin");

848 return 0;

849 }

850

851 /* Fall back to generic wmfw and optional matching bin */

852 ret = wm_adsp_request_firmware_file(dsp, wmfw_firmware, wmfw_filename,

853 cirrus_dir, NULL, NULL, "wmfw");

854 if (!ret || dsp->wmfw_optional) {

855 wm_adsp_request_firmware_file(dsp, coeff_firmware, coeff_filename,

856 cirrus_dir, NULL, NULL, "bin");

857 return 0;

858 }

859

860 adsp_err(dsp, "Failed to request firmware <%s>%s-%s-%s<-%s<%s>>.wmfw\n",

861 cirrus_dir, dsp->part,

862 dsp->fwf_name ? dsp->fwf_name : dsp->cs_dsp.name,

863 wm_adsp_fw[dsp->fw].file, system_name, asoc_component_prefix);

864

865 return -ENOENT;

866 }

867

868 static int wm_adsp_common_init(struct wm_adsp *dsp)

869 {

870 INIT_LIST_HEAD(&dsp->compr_list);

871 INIT_LIST_HEAD(&dsp->buffer_list);

872

873 return 0;

874 }

875

876 int wm_adsp1_init(struct wm_adsp *dsp)

877 {

878 int ret;

879

880 dsp->cs_dsp.client_ops = &wm_adsp1_client_ops;

881

882 ret = cs_dsp_adsp1_init(&dsp->cs_dsp);

883 if (ret)

884 return ret;

885

886 return wm_adsp_common_init(dsp);

887 }

888 EXPORT_SYMBOL_GPL(wm_adsp1_init);

889

890 int wm_adsp1_event(struct snd_soc_dapm_widget *w,

891 struct snd_kcontrol *kcontrol,

892 int event)

893 {

894 struct snd_soc_component *component = snd_soc_dapm_to_component(w->dapm);

895 struct wm_adsp *dsps = snd_soc_component_get_drvdata(component);

896 struct wm_adsp *dsp = &dsps[w->shift];

897 int ret = 0;

898 char *wmfw_filename = NULL;

899 const struct firmware *wmfw_firmware = NULL;

900 char *coeff_filename = NULL;

901 const struct firmware *coeff_firmware = NULL;

902

903 dsp->component = component;

904

905 switch (event) {

906 case SND_SOC_DAPM_POST_PMU:

907 ret = wm_adsp_request_firmware_files(dsp,

908 &wmfw_firmware, &wmfw_filename,

909 &coeff_firmware, &coeff_filename);

910 if (ret)

911 break;

912

913 ret = cs_dsp_adsp1_power_up(&dsp->cs_dsp,

914 wmfw_firmware, wmfw_filename,

915 coeff_firmware, coeff_filename,

916 wm_adsp_fw_text[dsp->fw]);

917

918 wm_adsp_release_firmware_files(dsp,

919 wmfw_firmware, wmfw_filename,

920 coeff_firmware, coeff_filename);

921 break;

922 case SND_SOC_DAPM_PRE_PMD:

923 cs_dsp_adsp1_power_down(&dsp->cs_dsp);

924 break;

925 default:

926 break;

927 }

928

929 return ret;

930 }

931 EXPORT_SYMBOL_GPL(wm_adsp1_event);

932

933 int wm_adsp2_set_dspclk(struct snd_soc_dapm_widget *w, unsigned int freq)

934 {

935 struct snd_soc_component *component = snd_soc_dapm_to_component(w->dapm);

936 struct wm_adsp *dsps = snd_soc_component_get_drvdata(component);

937 struct wm_adsp *dsp = &dsps[w->shift];

938

939 return cs_dsp_set_dspclk(&dsp->cs_dsp, freq);

940 }

941 EXPORT_SYMBOL_GPL(wm_adsp2_set_dspclk);

942

943 int wm_adsp2_preloader_get(struct snd_kcontrol *kcontrol,

944 struct snd_ctl_elem_value *ucontrol)

945 {

946 struct snd_soc_component *component = snd_soc_kcontrol_component(kcontrol);

947 struct wm_adsp *dsps = snd_soc_component_get_drvdata(component);

948 struct soc_mixer_control *mc =

949 (struct soc_mixer_control *)kcontrol->private_value;

950 struct wm_adsp *dsp = &dsps[mc->shift - 1];

951

952 ucontrol->value.integer.value[0] = dsp->preloaded;

953

954 return 0;

955 }

956 EXPORT_SYMBOL_GPL(wm_adsp2_preloader_get);

957

958 int wm_adsp2_preloader_put(struct snd_kcontrol *kcontrol,

959 struct snd_ctl_elem_value *ucontrol)

960 {

961 struct snd_soc_component *component = snd_soc_kcontrol_component(kcontrol);

962 struct wm_adsp *dsps = snd_soc_component_get_drvdata(component);

963 struct snd_soc_dapm_context *dapm = snd_soc_component_get_dapm(component);

964 struct soc_mixer_control *mc =

965 (struct soc_mixer_control *)kcontrol->private_value;

966 struct wm_adsp *dsp = &dsps[mc->shift - 1];

967 char preload[32];

968

969 if (dsp->preloaded == ucontrol->value.integer.value[0])

970 return 0;

971

972 snprintf(preload, ARRAY_SIZE(preload), "%s Preload", dsp->cs_dsp.name);

973

974 if (ucontrol->value.integer.value[0] || dsp->toggle_preload)

975 snd_soc_component_force_enable_pin(component, preload);

976 else

977 snd_soc_component_disable_pin(component, preload);

978

979 snd_soc_dapm_sync(dapm);

980

981 flush_work(&dsp->boot_work);

982

983 dsp->preloaded = ucontrol->value.integer.value[0];

984

985 if (dsp->toggle_preload) {

986 snd_soc_component_disable_pin(component, preload);

987 snd_soc_dapm_sync(dapm);

988 }

989

990 return 1;

991 }

992 EXPORT_SYMBOL_GPL(wm_adsp2_preloader_put);

993

994 int wm_adsp_power_up(struct wm_adsp *dsp, bool load_firmware)

995 {

996 int ret = 0;

997 char *wmfw_filename = NULL;

998 const struct firmware *wmfw_firmware = NULL;

999 char *coeff_filename = NULL;

1000 const struct firmware *coeff_firmware = NULL;

1001

1002 if (load_firmware) {

1003 ret = wm_adsp_request_firmware_files(dsp,

1004 &wmfw_firmware, &wmfw_filename,

1005 &coeff_firmware, &coeff_filename);

1006 if (ret)

1007 return ret;

1008 }

1009

1010 ret = cs_dsp_power_up(&dsp->cs_dsp,

1011 wmfw_firmware, wmfw_filename,

1012 coeff_firmware, coeff_filename,

1013 wm_adsp_fw_text[dsp->fw]);

1014

1015 wm_adsp_release_firmware_files(dsp,

1016 wmfw_firmware, wmfw_filename,

1017 coeff_firmware, coeff_filename);

1018

1019 return ret;

1020 }

1021 EXPORT_SYMBOL_GPL(wm_adsp_power_up);

1022

1023 void wm_adsp_power_down(struct wm_adsp *dsp)

1024 {

1025 cs_dsp_power_down(&dsp->cs_dsp);

1026 }

1027 EXPORT_SYMBOL_GPL(wm_adsp_power_down);

1028

1029 static void wm_adsp_boot_work(struct work_struct *work)

1030 {

1031 struct wm_adsp *dsp = container_of(work,

1032 struct wm_adsp,

1033 boot_work);

1034

1035 wm_adsp_power_up(dsp, true);

1036 }

1037

1038 int wm_adsp_early_event(struct snd_soc_dapm_widget *w,

1039 struct snd_kcontrol *kcontrol, int event)

1040 {

1041 struct snd_soc_component *component = snd_soc_dapm_to_component(w->dapm);

1042 struct wm_adsp *dsps = snd_soc_component_get_drvdata(component);

1043 struct wm_adsp *dsp = &dsps[w->shift];

1044

1045 switch (event) {

1046 case SND_SOC_DAPM_PRE_PMU:

1047 queue_work(system_unbound_wq, &dsp->boot_work);

1048 break;

1049 case SND_SOC_DAPM_PRE_PMD:

1050 wm_adsp_power_down(dsp);

1051 break;

1052 default:

1053 break;

1054 }

1055

1056 return 0;

1057 }

1058 EXPORT_SYMBOL_GPL(wm_adsp_early_event);

1059

1060 static int wm_adsp_pre_run(struct cs_dsp *cs_dsp)

1061 {

1062 struct wm_adsp *dsp = container_of(cs_dsp, struct wm_adsp, cs_dsp);

1063

1064 if (!dsp->pre_run)

1065 return 0;

1066

1067 return (*dsp->pre_run)(dsp);

1068 }

1069

1070 static int wm_adsp_event_post_run(struct cs_dsp *cs_dsp)

1071 {

1072 struct wm_adsp *dsp = container_of(cs_dsp, struct wm_adsp, cs_dsp);

1073

1074 if (wm_adsp_fw[dsp->fw].num_caps != 0)

1075 return wm_adsp_buffer_init(dsp);

1076

1077 return 0;

1078 }

1079

1080 static void wm_adsp_event_post_stop(struct cs_dsp *cs_dsp)

1081 {

1082 struct wm_adsp *dsp = container_of(cs_dsp, struct wm_adsp, cs_dsp);

1083

1084 if (wm_adsp_fw[dsp->fw].num_caps != 0)

1085 wm_adsp_buffer_free(dsp);

1086

1087 dsp->fatal_error = false;

1088 }

1089

1090 int wm_adsp_run(struct wm_adsp *dsp)

1091 {

1092 flush_work(&dsp->boot_work);

1093

1094 return cs_dsp_run(&dsp->cs_dsp);

1095 }

1096 EXPORT_SYMBOL_GPL(wm_adsp_run);

1097

1098 void wm_adsp_stop(struct wm_adsp *dsp)

1099 {

1100 cs_dsp_stop(&dsp->cs_dsp);

1101 }

1102 EXPORT_SYMBOL_GPL(wm_adsp_stop);

1103

1104 int wm_adsp_event(struct snd_soc_dapm_widget *w,

1105 struct snd_kcontrol *kcontrol, int event)

1106 {

1107 struct snd_soc_component *component = snd_soc_dapm_to_component(w->dapm);

1108 struct wm_adsp *dsps = snd_soc_component_get_drvdata(component);

1109 struct wm_adsp *dsp = &dsps[w->shift];

1110

1111 switch (event) {

1112 case SND_SOC_DAPM_POST_PMU:

1113 return wm_adsp_run(dsp);

1114 case SND_SOC_DAPM_PRE_PMD:

1115 wm_adsp_stop(dsp);

1116 return 0;

1117 default:

1118 return 0;

1119 }

1120 }

1121 EXPORT_SYMBOL_GPL(wm_adsp_event);

1122

1123 int wm_adsp2_component_probe(struct wm_adsp *dsp, struct snd_soc_component *component)

1124 {

1125 char preload[32];

1126

1127 if (!dsp->cs_dsp.no_core_startstop) {

1128 snprintf(preload, ARRAY_SIZE(preload), "%s Preload", dsp->cs_dsp.name);

1129 snd_soc_component_disable_pin(component, preload);

1130 }

1131

1132 cs_dsp_init_debugfs(&dsp->cs_dsp, component->debugfs_root);

1133

1134 dsp->component = component;

1135

1136 return 0;

1137 }

1138 EXPORT_SYMBOL_GPL(wm_adsp2_component_probe);

1139

1140 int wm_adsp2_component_remove(struct wm_adsp *dsp, struct snd_soc_component *component)

1141 {

1142 cs_dsp_cleanup_debugfs(&dsp->cs_dsp);

1143

1144 return 0;

1145 }

1146 EXPORT_SYMBOL_GPL(wm_adsp2_component_remove);

1147

1148 int wm_adsp2_init(struct wm_adsp *dsp)

1149 {

1150 int ret;

1151

1152 INIT_WORK(&dsp->boot_work, wm_adsp_boot_work);

1153

1154 dsp->sys_config_size = sizeof(struct wm_adsp_system_config_xm_hdr);

1155 dsp->cs_dsp.client_ops = &wm_adsp2_client_ops;

1156

1157 ret = cs_dsp_adsp2_init(&dsp->cs_dsp);

1158 if (ret)

1159 return ret;

1160

1161 return wm_adsp_common_init(dsp);

1162 }

1163 EXPORT_SYMBOL_GPL(wm_adsp2_init);

1164

1165 int wm_halo_init(struct wm_adsp *dsp)

1166 {

1167 int ret;

1168

1169 INIT_WORK(&dsp->boot_work, wm_adsp_boot_work);

1170

1171 dsp->sys_config_size = sizeof(struct wm_halo_system_config_xm_hdr);

1172 dsp->cs_dsp.client_ops = &wm_adsp2_client_ops;

1173

1174 ret = cs_dsp_halo_init(&dsp->cs_dsp);

1175 if (ret)

1176 return ret;

1177

1178 return wm_adsp_common_init(dsp);

1179 }

1180 EXPORT_SYMBOL_GPL(wm_halo_init);

1181

1182 void wm_adsp2_remove(struct wm_adsp *dsp)

1183 {

1184 cs_dsp_remove(&dsp->cs_dsp);

1185 }

1186 EXPORT_SYMBOL_GPL(wm_adsp2_remove);

1187

1188 static inline int wm_adsp_compr_attached(struct wm_adsp_compr *compr)

1189 {

1190 return compr->buf != NULL;

1191 }

1192

1193 static int wm_adsp_compr_attach(struct wm_adsp_compr *compr)

1194 {

1195 struct wm_adsp_compr_buf *buf = NULL, *tmp;

1196

1197 if (compr->dsp->fatal_error)

1198 return -EINVAL;

1199

1200 list_for_each_entry(tmp, &compr->dsp->buffer_list, list) {

1201 if (!tmp->name || !strcmp(compr->name, tmp->name)) {

1202 buf = tmp;

1203 break;

1204 }

1205 }

1206

1207 if (!buf)

1208 return -EINVAL;

1209

1210 compr->buf = buf;

1211 buf->compr = compr;

1212

1213 return 0;

1214 }

1215

1216 static void wm_adsp_compr_detach(struct wm_adsp_compr *compr)

1217 {

1218 if (!compr)

1219 return;

1220

1221 /* Wake the poll so it can see buffer is no longer attached */

1222 if (compr->stream)

1223 snd_compr_fragment_elapsed(compr->stream);

1224

1225 if (wm_adsp_compr_attached(compr)) {

1226 compr->buf->compr = NULL;

1227 compr->buf = NULL;

1228 }

1229 }

1230

1231 int wm_adsp_compr_open(struct wm_adsp *dsp, struct snd_compr_stream *stream)

1232 {

1233 struct wm_adsp_compr *compr, *tmp;

1234 struct snd_soc_pcm_runtime *rtd = stream->private_data;

1235 int ret = 0;

1236

1237 mutex_lock(&dsp->cs_dsp.pwr_lock);

1238

1239 if (wm_adsp_fw[dsp->fw].num_caps == 0) {

1240 adsp_err(dsp, "%s: Firmware does not support compressed API\n",

1241 snd_soc_rtd_to_codec(rtd, 0)->name);

1242 ret = -ENXIO;

1243 goto out;

1244 }

1245

1246 if (wm_adsp_fw[dsp->fw].compr_direction != stream->direction) {

1247 adsp_err(dsp, "%s: Firmware does not support stream direction\n",

1248 snd_soc_rtd_to_codec(rtd, 0)->name);

1249 ret = -EINVAL;

1250 goto out;

1251 }

1252

1253 list_for_each_entry(tmp, &dsp->compr_list, list) {

1254 if (!strcmp(tmp->name, snd_soc_rtd_to_codec(rtd, 0)->name)) {

1255 adsp_err(dsp, "%s: Only a single stream supported per dai\n",

1256 snd_soc_rtd_to_codec(rtd, 0)->name);

1257 ret = -EBUSY;

1258 goto out;

1259 }

1260 }

1261

1262 compr = kzalloc(sizeof(*compr), GFP_KERNEL);

1263 if (!compr) {

1264 ret = -ENOMEM;

1265 goto out;

1266 }

1267

1268 compr->dsp = dsp;

1269 compr->stream = stream;

1270 compr->name = snd_soc_rtd_to_codec(rtd, 0)->name;

1271

1272 list_add_tail(&compr->list, &dsp->compr_list);

1273

1274 stream->runtime->private_data = compr;

1275

1276 out:

1277 mutex_unlock(&dsp->cs_dsp.pwr_lock);

1278

1279 return ret;

1280 }

1281 EXPORT_SYMBOL_GPL(wm_adsp_compr_open);

1282

1283 int wm_adsp_compr_free(struct snd_soc_component *component,

1284 struct snd_compr_stream *stream)

1285 {

1286 struct wm_adsp_compr *compr = stream->runtime->private_data;

1287 struct wm_adsp *dsp = compr->dsp;

1288

1289 mutex_lock(&dsp->cs_dsp.pwr_lock);

1290

1291 wm_adsp_compr_detach(compr);

1292 list_del(&compr->list);

1293

1294 kfree(compr->raw_buf);

1295 kfree(compr);

1296

1297 mutex_unlock(&dsp->cs_dsp.pwr_lock);

1298

1299 return 0;

1300 }

1301 EXPORT_SYMBOL_GPL(wm_adsp_compr_free);

1302

1303 static int wm_adsp_compr_check_params(struct snd_compr_stream *stream,

1304 struct snd_compr_params *params)

1305 {

1306 struct wm_adsp_compr *compr = stream->runtime->private_data;

1307 struct wm_adsp *dsp = compr->dsp;

1308 const struct wm_adsp_fw_caps *caps;

1309 const struct snd_codec_desc *desc;

1310 int i, j;

1311

1312 if (params->buffer.fragment_size < WM_ADSP_MIN_FRAGMENT_SIZE ||

1313 params->buffer.fragment_size > WM_ADSP_MAX_FRAGMENT_SIZE ||

1314 params->buffer.fragments < WM_ADSP_MIN_FRAGMENTS ||

1315 params->buffer.fragments > WM_ADSP_MAX_FRAGMENTS ||

1316 params->buffer.fragment_size % CS_DSP_DATA_WORD_SIZE) {

1317 compr_err(compr, "Invalid buffer fragsize=%d fragments=%d\n",

1318 params->buffer.fragment_size,

1319 params->buffer.fragments);

1320

1321 return -EINVAL;

1322 }

1323

1324 for (i = 0; i < wm_adsp_fw[dsp->fw].num_caps; i++) {

1325 caps = &wm_adsp_fw[dsp->fw].caps[i];

1326 desc = &caps->desc;

1327

1328 if (caps->id != params->codec.id)

1329 continue;

1330

1331 if (stream->direction == SND_COMPRESS_PLAYBACK) {

1332 if (desc->max_ch < params->codec.ch_out)

1333 continue;

1334 } else {

1335 if (desc->max_ch < params->codec.ch_in)

1336 continue;

1337 }

1338

1339 if (!(desc->formats & (1 << params->codec.format)))

1340 continue;

1341

1342 for (j = 0; j < desc->num_sample_rates; ++j)

1343 if (desc->sample_rates[j] == params->codec.sample_rate)

1344 return 0;

1345 }

1346

1347 compr_err(compr, "Invalid params id=%u ch=%u,%u rate=%u fmt=%u\n",

1348 params->codec.id, params->codec.ch_in, params->codec.ch_out,

1349 params->codec.sample_rate, params->codec.format);

1350 return -EINVAL;

1351 }

1352

1353 static inline unsigned int wm_adsp_compr_frag_words(struct wm_adsp_compr *compr)

1354 {

1355 return compr->size.fragment_size / CS_DSP_DATA_WORD_SIZE;

1356 }

1357

1358 int wm_adsp_compr_set_params(struct snd_soc_component *component,

1359 struct snd_compr_stream *stream,

1360 struct snd_compr_params *params)

1361 {

1362 struct wm_adsp_compr *compr = stream->runtime->private_data;

1363 unsigned int size;

1364 int ret;

1365

1366 ret = wm_adsp_compr_check_params(stream, params);

1367 if (ret)

1368 return ret;

1369

1370 compr->size = params->buffer;

1371

1372 compr_dbg(compr, "fragment_size=%d fragments=%d\n",

1373 compr->size.fragment_size, compr->size.fragments);

1374

1375 size = wm_adsp_compr_frag_words(compr) * sizeof(*compr->raw_buf);

1376 compr->raw_buf = kmalloc(size, GFP_DMA | GFP_KERNEL);

1377 if (!compr->raw_buf)

1378 return -ENOMEM;

1379

1380 compr->sample_rate = params->codec.sample_rate;

1381

1382 return 0;

1383 }

1384 EXPORT_SYMBOL_GPL(wm_adsp_compr_set_params);

1385

1386 int wm_adsp_compr_get_caps(struct snd_soc_component *component,

1387 struct snd_compr_stream *stream,

1388 struct snd_compr_caps *caps)

1389 {

1390 struct wm_adsp_compr *compr = stream->runtime->private_data;

1391 int fw = compr->dsp->fw;

1392 int i;

1393

1394 if (wm_adsp_fw[fw].caps) {

1395 for (i = 0; i < wm_adsp_fw[fw].num_caps; i++)

1396 caps->codecs[i] = wm_adsp_fw[fw].caps[i].id;

1397

1398 caps->num_codecs = i;

1399 caps->direction = wm_adsp_fw[fw].compr_direction;

1400

1401 caps->min_fragment_size = WM_ADSP_MIN_FRAGMENT_SIZE;

1402 caps->max_fragment_size = WM_ADSP_MAX_FRAGMENT_SIZE;

1403 caps->min_fragments = WM_ADSP_MIN_FRAGMENTS;

1404 caps->max_fragments = WM_ADSP_MAX_FRAGMENTS;

1405 }

1406

1407 return 0;

1408 }

1409 EXPORT_SYMBOL_GPL(wm_adsp_compr_get_caps);

1410

1411 static inline int wm_adsp_buffer_read(struct wm_adsp_compr_buf *buf,

1412 unsigned int field_offset, u32 *data)

1413 {

1414 return cs_dsp_read_data_word(&buf->dsp->cs_dsp, buf->host_buf_mem_type,

1415 buf->host_buf_ptr + field_offset, data);

1416 }

1417

1418 static inline int wm_adsp_buffer_write(struct wm_adsp_compr_buf *buf,

1419 unsigned int field_offset, u32 data)

1420 {

1421 return cs_dsp_write_data_word(&buf->dsp->cs_dsp, buf->host_buf_mem_type,

1422 buf->host_buf_ptr + field_offset,

1423 data);

1424 }

1425

1426 static int wm_adsp_buffer_populate(struct wm_adsp_compr_buf *buf)

1427 {

1428 const struct wm_adsp_fw_caps *caps = wm_adsp_fw[buf->dsp->fw].caps;

1429 struct wm_adsp_buffer_region *region;

1430 u32 offset = 0;

1431 int i, ret;

1432

1433 buf->regions = kcalloc(caps->num_regions, sizeof(*buf->regions),

1434 GFP_KERNEL);

1435 if (!buf->regions)

1436 return -ENOMEM;

1437

1438 for (i = 0; i < caps->num_regions; ++i) {

1439 region = &buf->regions[i];

1440

1441 region->offset = offset;

1442 region->mem_type = caps->region_defs[i].mem_type;

1443

1444 ret = wm_adsp_buffer_read(buf, caps->region_defs[i].base_offset,

1445 &region->base_addr);

1446 if (ret < 0)

1447 goto err;

1448

1449 ret = wm_adsp_buffer_read(buf, caps->region_defs[i].size_offset,

1450 &offset);

1451 if (ret < 0)

1452 goto err;

1453

1454 region->cumulative_size = offset;

1455

1456 compr_dbg(buf,

1457 "region=%d type=%d base=%08x off=%08x size=%08x\n",

1458 i, region->mem_type, region->base_addr,

1459 region->offset, region->cumulative_size);

1460 }

1461

1462 return 0;

1463

1464 err:

1465 kfree(buf->regions);

1466 return ret;

1467 }

1468

1469 static void wm_adsp_buffer_clear(struct wm_adsp_compr_buf *buf)

1470 {

1471 buf->irq_count = 0xFFFFFFFF;

1472 buf->read_index = -1;

1473 buf->avail = 0;

1474 }

1475

1476 static struct wm_adsp_compr_buf *wm_adsp_buffer_alloc(struct wm_adsp *dsp)

1477 {

1478 struct wm_adsp_compr_buf *buf;

1479

1480 buf = kzalloc(sizeof(*buf), GFP_KERNEL);

1481 if (!buf)

1482 return NULL;

1483

1484 buf->dsp = dsp;

1485

1486 wm_adsp_buffer_clear(buf);

1487

1488 return buf;

1489 }

1490

1491 static int wm_adsp_buffer_parse_legacy(struct wm_adsp *dsp)

1492 {

1493 struct cs_dsp_alg_region *alg_region;

1494 struct wm_adsp_compr_buf *buf;

1495 u32 xmalg, addr, magic;

1496 int i, ret;

1497

1498 alg_region = cs_dsp_find_alg_region(&dsp->cs_dsp, WMFW_ADSP2_XM, dsp->cs_dsp.fw_id);

1499 if (!alg_region) {

1500 adsp_err(dsp, "No algorithm region found\n");

1501 return -EINVAL;

1502 }

1503

1504 xmalg = dsp->sys_config_size / sizeof(__be32);

1505

1506 addr = alg_region->base + xmalg + ALG_XM_FIELD(magic);

1507 ret = cs_dsp_read_data_word(&dsp->cs_dsp, WMFW_ADSP2_XM, addr, &magic);

1508 if (ret < 0)

1509 return ret;

1510

1511 if (magic != WM_ADSP_ALG_XM_STRUCT_MAGIC)

1512 return -ENODEV;

1513

1514 buf = wm_adsp_buffer_alloc(dsp);

1515 if (!buf)

1516 return -ENOMEM;

1517

1518 addr = alg_region->base + xmalg + ALG_XM_FIELD(host_buf_ptr);

1519 for (i = 0; i < 5; ++i) {

1520 ret = cs_dsp_read_data_word(&dsp->cs_dsp, WMFW_ADSP2_XM, addr,

1521 &buf->host_buf_ptr);

1522 if (ret < 0)

1523 goto err;

1524

1525 if (buf->host_buf_ptr)

1526 break;

1527

1528 usleep_range(1000, 2000);

1529 }

1530

1531 if (!buf->host_buf_ptr) {

1532 ret = -EIO;

1533 goto err;

1534 }

1535

1536 buf->host_buf_mem_type = WMFW_ADSP2_XM;

1537

1538 ret = wm_adsp_buffer_populate(buf);

1539 if (ret < 0)

1540 goto err;

1541

1542 list_add_tail(&buf->list, &dsp->buffer_list);

1543

1544 compr_dbg(buf, "legacy host_buf_ptr=%x\n", buf->host_buf_ptr);

1545

1546 return 0;

1547

1548 err:

1549 kfree(buf);

1550

1551 return ret;

1552 }

1553

1554 static int wm_adsp_buffer_parse_coeff(struct cs_dsp_coeff_ctl *cs_ctl)

1555 {

1556 struct wm_adsp_host_buf_coeff_v1 coeff_v1;

1557 struct wm_adsp_compr_buf *buf;

1558 struct wm_adsp *dsp = container_of(cs_ctl->dsp, struct wm_adsp, cs_dsp);

1559 unsigned int version = 0;

1560 int ret, i;

1561

1562 for (i = 0; i < 5; ++i) {

1563 ret = cs_dsp_coeff_read_ctrl(cs_ctl, 0, &coeff_v1,

1564 min(cs_ctl->len, sizeof(coeff_v1)));

1565 if (ret < 0)

1566 return ret;

1567

1568 if (coeff_v1.host_buf_ptr)

1569 break;

1570

1571 usleep_range(1000, 2000);

1572 }

1573

1574 if (!coeff_v1.host_buf_ptr) {

1575 adsp_err(dsp, "Failed to acquire host buffer\n");

1576 return -EIO;

1577 }

1578

1579 buf = wm_adsp_buffer_alloc(dsp);

1580 if (!buf)

1581 return -ENOMEM;

1582

1583 buf->host_buf_mem_type = cs_ctl->alg_region.type;

1584 buf->host_buf_ptr = be32_to_cpu(coeff_v1.host_buf_ptr);

1585

1586 ret = wm_adsp_buffer_populate(buf);

1587 if (ret < 0)

1588 goto err;

1589

1590 /*

1591 * v0 host_buffer coefficients didn't have versioning, so if the

1592 * control is one word, assume version 0.

1593 */

1594 if (cs_ctl->len == 4)

1595 goto done;

1596

1597 version = be32_to_cpu(coeff_v1.versions) & HOST_BUF_COEFF_COMPAT_VER_MASK;

1598 version >>= HOST_BUF_COEFF_COMPAT_VER_SHIFT;

1599

1600 if (version > HOST_BUF_COEFF_SUPPORTED_COMPAT_VER) {

1601 adsp_err(dsp,

1602 "Host buffer coeff ver %u > supported version %u\n",

1603 version, HOST_BUF_COEFF_SUPPORTED_COMPAT_VER);

1604 ret = -EINVAL;

1605 goto err;

1606 }

1607

1608 cs_dsp_remove_padding((u32 *)&coeff_v1.name, ARRAY_SIZE(coeff_v1.name));

1609

1610 buf->name = kasprintf(GFP_KERNEL, "%s-dsp-%s", dsp->part,

1611 (char *)&coeff_v1.name);

1612

1613 done:

1614 list_add_tail(&buf->list, &dsp->buffer_list);

1615

1616 compr_dbg(buf, "host_buf_ptr=%x coeff version %u\n",

1617 buf->host_buf_ptr, version);

1618

1619 return version;

1620

1621 err:

1622 kfree(buf);

1623

1624 return ret;

1625 }

1626

1627 static int wm_adsp_buffer_init(struct wm_adsp *dsp)

1628 {

1629 struct cs_dsp_coeff_ctl *cs_ctl;

1630 int ret;

1631

1632 list_for_each_entry(cs_ctl, &dsp->cs_dsp.ctl_list, list) {

1633 if (cs_ctl->type != WMFW_CTL_TYPE_HOST_BUFFER)

1634 continue;

1635

1636 if (!cs_ctl->enabled)

1637 continue;

1638

1639 ret = wm_adsp_buffer_parse_coeff(cs_ctl);

1640 if (ret < 0) {

1641 adsp_err(dsp, "Failed to parse coeff: %d\n", ret);

1642 goto error;

1643 } else if (ret == 0) {

1644 /* Only one buffer supported for version 0 */

1645 return 0;

1646 }

1647 }

1648

1649 if (list_empty(&dsp->buffer_list)) {

1650 /* Fall back to legacy support */

1651 ret = wm_adsp_buffer_parse_legacy(dsp);

1652 if (ret == -ENODEV)

1653 adsp_info(dsp, "Legacy support not available\n");

1654 else if (ret)

1655 adsp_warn(dsp, "Failed to parse legacy: %d\n", ret);

1656 }

1657

1658 return 0;

1659

1660 error:

1661 wm_adsp_buffer_free(dsp);

1662 return ret;

1663 }

1664

1665 static int wm_adsp_buffer_free(struct wm_adsp *dsp)

1666 {

1667 struct wm_adsp_compr_buf *buf, *tmp;

1668

1669 list_for_each_entry_safe(buf, tmp, &dsp->buffer_list, list) {

1670 wm_adsp_compr_detach(buf->compr);

1671

1672 kfree(buf->name);

1673 kfree(buf->regions);

1674 list_del(&buf->list);

1675 kfree(buf);

1676 }

1677

1678 return 0;

1679 }

1680

1681 static int wm_adsp_buffer_get_error(struct wm_adsp_compr_buf *buf)

1682 {

1683 int ret;

1684

1685 ret = wm_adsp_buffer_read(buf, HOST_BUFFER_FIELD(error), &buf->error);

1686 if (ret < 0) {

1687 compr_err(buf, "Failed to check buffer error: %d\n", ret);

1688 return ret;

1689 }

1690 if (buf->error != 0) {

1691 compr_err(buf, "Buffer error occurred: %d\n", buf->error);

1692 return -EIO;

1693 }

1694

1695 return 0;

1696 }

1697

1698 int wm_adsp_compr_trigger(struct snd_soc_component *component,

1699 struct snd_compr_stream *stream, int cmd)

1700 {

1701 struct wm_adsp_compr *compr = stream->runtime->private_data;

1702 struct wm_adsp *dsp = compr->dsp;

1703 int ret = 0;

1704

1705 compr_dbg(compr, "Trigger: %d\n", cmd);

1706

1707 mutex_lock(&dsp->cs_dsp.pwr_lock);

1708

1709 switch (cmd) {

1710 case SNDRV_PCM_TRIGGER_START:

1711 if (!wm_adsp_compr_attached(compr)) {

1712 ret = wm_adsp_compr_attach(compr);

1713 if (ret < 0) {

1714 compr_err(compr, "Failed to link buffer and stream: %d\n",

1715 ret);

1716 break;

1717 }

1718 }

1719

1720 ret = wm_adsp_buffer_get_error(compr->buf);

1721 if (ret < 0)

1722 break;

1723

1724 /* Trigger the IRQ at one fragment of data */

1725 ret = wm_adsp_buffer_write(compr->buf,

1726 HOST_BUFFER_FIELD(high_water_mark),

1727 wm_adsp_compr_frag_words(compr));

1728 if (ret < 0) {

1729 compr_err(compr, "Failed to set high water mark: %d\n",

1730 ret);

1731 break;

1732 }

1733 break;

1734 case SNDRV_PCM_TRIGGER_STOP:

1735 if (wm_adsp_compr_attached(compr))

1736 wm_adsp_buffer_clear(compr->buf);

1737 break;

1738 default:

1739 ret = -EINVAL;

1740 break;

1741 }

1742

1743 mutex_unlock(&dsp->cs_dsp.pwr_lock);

1744

1745 return ret;

1746 }

1747 EXPORT_SYMBOL_GPL(wm_adsp_compr_trigger);

1748

1749 static inline int wm_adsp_buffer_size(struct wm_adsp_compr_buf *buf)

1750 {

1751 int last_region = wm_adsp_fw[buf->dsp->fw].caps->num_regions - 1;

1752

1753 return buf->regions[last_region].cumulative_size;

1754 }

1755

1756 static int wm_adsp_buffer_update_avail(struct wm_adsp_compr_buf *buf)

1757 {

1758 u32 next_read_index, next_write_index;

1759 int write_index, read_index, avail;

1760 int ret;

1761

1762 /* Only sync read index if we haven't already read a valid index */

1763 if (buf->read_index < 0) {

1764 ret = wm_adsp_buffer_read(buf,

1765 HOST_BUFFER_FIELD(next_read_index),

1766 &next_read_index);

1767 if (ret < 0)

1768 return ret;

1769

1770 read_index = sign_extend32(next_read_index, 23);

1771

1772 if (read_index < 0) {

1773 compr_dbg(buf, "Avail check on unstarted stream\n");

1774 return 0;

1775 }

1776

1777 buf->read_index = read_index;

1778 }

1779

1780 ret = wm_adsp_buffer_read(buf, HOST_BUFFER_FIELD(next_write_index),

1781 &next_write_index);

1782 if (ret < 0)

1783 return ret;

1784

1785 write_index = sign_extend32(next_write_index, 23);

1786

1787 avail = write_index - buf->read_index;

1788 if (avail < 0)

1789 avail += wm_adsp_buffer_size(buf);

1790

1791 compr_dbg(buf, "readindex=0x%x, writeindex=0x%x, avail=%d\n",

1792 buf->read_index, write_index, avail * CS_DSP_DATA_WORD_SIZE);

1793

1794 buf->avail = avail;

1795

1796 return 0;

1797 }

1798

1799 int wm_adsp_compr_handle_irq(struct wm_adsp *dsp)

1800 {

1801 struct wm_adsp_compr_buf *buf;

1802 struct wm_adsp_compr *compr;

1803 int ret = 0;

1804

1805 mutex_lock(&dsp->cs_dsp.pwr_lock);

1806

1807 if (list_empty(&dsp->buffer_list)) {

1808 ret = -ENODEV;

1809 goto out;

1810 }

1811

1812 adsp_dbg(dsp, "Handling buffer IRQ\n");

1813

1814 list_for_each_entry(buf, &dsp->buffer_list, list) {

1815 compr = buf->compr;

1816

1817 ret = wm_adsp_buffer_get_error(buf);

1818 if (ret < 0)

1819 goto out_notify; /* Wake poll to report error */

1820

1821 ret = wm_adsp_buffer_read(buf, HOST_BUFFER_FIELD(irq_count),

1822 &buf->irq_count);

1823 if (ret < 0) {

1824 compr_err(buf, "Failed to get irq_count: %d\n", ret);

1825 goto out;

1826 }

1827

1828 ret = wm_adsp_buffer_update_avail(buf);

1829 if (ret < 0) {

1830 compr_err(buf, "Error reading avail: %d\n", ret);

1831 goto out;

1832 }

1833

1834 if (wm_adsp_fw[dsp->fw].voice_trigger && buf->irq_count == 2)

1835 ret = WM_ADSP_COMPR_VOICE_TRIGGER;

1836

1837 out_notify:

1838 if (compr && compr->stream)

1839 snd_compr_fragment_elapsed(compr->stream);

1840 }

1841

1842 out:

1843 mutex_unlock(&dsp->cs_dsp.pwr_lock);

1844

1845 return ret;

1846 }

1847 EXPORT_SYMBOL_GPL(wm_adsp_compr_handle_irq);

1848

1849 static int wm_adsp_buffer_reenable_irq(struct wm_adsp_compr_buf *buf)

1850 {

1851 if (buf->irq_count & 0x01)

1852 return 0;

1853

1854 compr_dbg(buf, "Enable IRQ(0x%x) for next fragment\n", buf->irq_count);

1855

1856 buf->irq_count |= 0x01;

1857

1858 return wm_adsp_buffer_write(buf, HOST_BUFFER_FIELD(irq_ack),

1859 buf->irq_count);

1860 }

1861

1862 int wm_adsp_compr_pointer(struct snd_soc_component *component,

1863 struct snd_compr_stream *stream,

1864 struct snd_compr_tstamp *tstamp)

1865 {

1866 struct wm_adsp_compr *compr = stream->runtime->private_data;

1867 struct wm_adsp *dsp = compr->dsp;

1868 struct wm_adsp_compr_buf *buf;

1869 int ret = 0;

1870

1871 compr_dbg(compr, "Pointer request\n");

1872

1873 mutex_lock(&dsp->cs_dsp.pwr_lock);

1874

1875 buf = compr->buf;

1876

1877 if (dsp->fatal_error || !buf || buf->error) {

1878 snd_compr_stop_error(stream, SNDRV_PCM_STATE_XRUN);

1879 ret = -EIO;

1880 goto out;

1881 }

1882

1883 if (buf->avail < wm_adsp_compr_frag_words(compr)) {

1884 ret = wm_adsp_buffer_update_avail(buf);

1885 if (ret < 0) {

1886 compr_err(compr, "Error reading avail: %d\n", ret);

1887 goto out;

1888 }

1889

1890 /*

1891 * If we really have less than 1 fragment available tell the

1892 * DSP to inform us once a whole fragment is available.

1893 */

1894 if (buf->avail < wm_adsp_compr_frag_words(compr)) {

1895 ret = wm_adsp_buffer_get_error(buf);

1896 if (ret < 0) {

1897 if (buf->error)

1898 snd_compr_stop_error(stream,

1899 SNDRV_PCM_STATE_XRUN);

1900 goto out;

1901 }

1902

1903 ret = wm_adsp_buffer_reenable_irq(buf);

1904 if (ret < 0) {

1905 compr_err(compr, "Failed to re-enable buffer IRQ: %d\n",

1906 ret);

1907 goto out;

1908 }

1909 }

1910 }

1911

1912 tstamp->copied_total = compr->copied_total;

1913 tstamp->copied_total += buf->avail * CS_DSP_DATA_WORD_SIZE;

1914 tstamp->sampling_rate = compr->sample_rate;

1915

1916 out:

1917 mutex_unlock(&dsp->cs_dsp.pwr_lock);

1918

1919 return ret;

1920 }

1921 EXPORT_SYMBOL_GPL(wm_adsp_compr_pointer);

1922

1923 static int wm_adsp_buffer_capture_block(struct wm_adsp_compr *compr, int target)

1924 {

1925 struct wm_adsp_compr_buf *buf = compr->buf;

1926 unsigned int adsp_addr;

1927 int mem_type, nwords, max_read;

1928 int i, ret;

1929

1930 /* Calculate read parameters */

1931 for (i = 0; i < wm_adsp_fw[buf->dsp->fw].caps->num_regions; ++i)

1932 if (buf->read_index < buf->regions[i].cumulative_size)

1933 break;

1934

1935 if (i == wm_adsp_fw[buf->dsp->fw].caps->num_regions)

1936 return -EINVAL;

1937

1938 mem_type = buf->regions[i].mem_type;

1939 adsp_addr = buf->regions[i].base_addr +

1940 (buf->read_index - buf->regions[i].offset);

1941

1942 max_read = wm_adsp_compr_frag_words(compr);

1943 nwords = buf->regions[i].cumulative_size - buf->read_index;

1944

1945 if (nwords > target)

1946 nwords = target;

1947 if (nwords > buf->avail)

1948 nwords = buf->avail;

1949 if (nwords > max_read)

1950 nwords = max_read;

1951 if (!nwords)

1952 return 0;

1953

1954 /* Read data from DSP */

1955 ret = cs_dsp_read_raw_data_block(&buf->dsp->cs_dsp, mem_type, adsp_addr,

1956 nwords, (__be32 *)compr->raw_buf);

1957 if (ret < 0)

1958 return ret;

1959

1960 cs_dsp_remove_padding(compr->raw_buf, nwords);

1961

1962 /* update read index to account for words read */

1963 buf->read_index += nwords;

1964 if (buf->read_index == wm_adsp_buffer_size(buf))

1965 buf->read_index = 0;

1966

1967 ret = wm_adsp_buffer_write(buf, HOST_BUFFER_FIELD(next_read_index),

1968 buf->read_index);

1969 if (ret < 0)

1970 return ret;

1971

1972 /* update avail to account for words read */

1973 buf->avail -= nwords;

1974

1975 return nwords;

1976 }

1977

1978 static int wm_adsp_compr_read(struct wm_adsp_compr *compr,

1979 char __user *buf, size_t count)

1980 {

1981 struct wm_adsp *dsp = compr->dsp;

1982 int ntotal = 0;

1983 int nwords, nbytes;

1984

1985 compr_dbg(compr, "Requested read of %zu bytes\n", count);

1986

1987 if (dsp->fatal_error || !compr->buf || compr->buf->error) {

1988 snd_compr_stop_error(compr->stream, SNDRV_PCM_STATE_XRUN);

1989 return -EIO;

1990 }

1991

1992 count /= CS_DSP_DATA_WORD_SIZE;

1993

1994 do {

1995 nwords = wm_adsp_buffer_capture_block(compr, count);

1996 if (nwords < 0) {

1997 compr_err(compr, "Failed to capture block: %d\n",

1998 nwords);

1999 return nwords;

2000 }

2001

2002 nbytes = nwords * CS_DSP_DATA_WORD_SIZE;

2003

2004 compr_dbg(compr, "Read %d bytes\n", nbytes);

2005

2006 if (copy_to_user(buf + ntotal, compr->raw_buf, nbytes)) {

2007 compr_err(compr, "Failed to copy data to user: %d, %d\n",

2008 ntotal, nbytes);

2009 return -EFAULT;

2010 }

2011

2012 count -= nwords;

2013 ntotal += nbytes;

2014 } while (nwords > 0 && count > 0);

2015

2016 compr->copied_total += ntotal;

2017

2018 return ntotal;

2019 }

2020

2021 int wm_adsp_compr_copy(struct snd_soc_component *component,

2022 struct snd_compr_stream *stream, char __user *buf,

2023 size_t count)

2024 {

2025 struct wm_adsp_compr *compr = stream->runtime->private_data;

2026 struct wm_adsp *dsp = compr->dsp;

2027 int ret;

2028

2029 mutex_lock(&dsp->cs_dsp.pwr_lock);

2030

2031 if (stream->direction == SND_COMPRESS_CAPTURE)

2032 ret = wm_adsp_compr_read(compr, buf, count);

2033 else

2034 ret = -ENOTSUPP;

2035

2036 mutex_unlock(&dsp->cs_dsp.pwr_lock);

2037

2038 return ret;

2039 }

2040 EXPORT_SYMBOL_GPL(wm_adsp_compr_copy);

2041

2042 static void wm_adsp_fatal_error(struct cs_dsp *cs_dsp)

2043 {

2044 struct wm_adsp *dsp = container_of(cs_dsp, struct wm_adsp, cs_dsp);

2045 struct wm_adsp_compr *compr;

2046

2047 dsp->fatal_error = true;

2048

2049 list_for_each_entry(compr, &dsp->compr_list, list) {

2050 if (compr->stream)

2051 snd_compr_fragment_elapsed(compr->stream);

2052 }

2053 }

2054

2055 irqreturn_t wm_adsp2_bus_error(int irq, void *data)

2056 {

2057 struct wm_adsp *dsp = (struct wm_adsp *)data;

2058

2059 cs_dsp_adsp2_bus_error(&dsp->cs_dsp);

2060

2061 return IRQ_HANDLED;

2062 }

2063 EXPORT_SYMBOL_GPL(wm_adsp2_bus_error);

2064

2065 irqreturn_t wm_halo_bus_error(int irq, void *data)

2066 {

2067 struct wm_adsp *dsp = (struct wm_adsp *)data;

2068

2069 cs_dsp_halo_bus_error(&dsp->cs_dsp);

2070

2071 return IRQ_HANDLED;

2072 }

2073 EXPORT_SYMBOL_GPL(wm_halo_bus_error);

2074

2075 irqreturn_t wm_halo_wdt_expire(int irq, void *data)

2076 {

2077 struct wm_adsp *dsp = data;

2078

2079 cs_dsp_halo_wdt_expire(&dsp->cs_dsp);

2080

2081 return IRQ_HANDLED;

2082 }

2083 EXPORT_SYMBOL_GPL(wm_halo_wdt_expire);

2084

2085 static const struct cs_dsp_client_ops wm_adsp1_client_ops = {

2086 .control_add = wm_adsp_control_add_cb,

2087 .control_remove = wm_adsp_control_remove,

2088 };

2089

2090 static const struct cs_dsp_client_ops wm_adsp2_client_ops = {

2091 .control_add = wm_adsp_control_add_cb,

2092 .control_remove = wm_adsp_control_remove,

2093 .pre_run = wm_adsp_pre_run,

2094 .post_run = wm_adsp_event_post_run,

2095 .post_stop = wm_adsp_event_post_stop,

2096 .watchdog_expired = wm_adsp_fatal_error,

2097 };

2098

2099 MODULE_DESCRIPTION("Cirrus Logic ASoC DSP Support");

2100 MODULE_LICENSE("GPL v2");

2101 MODULE_IMPORT_NS("FW_CS_DSP");