sound/firewire/isight.c

101

isight->period_counter += count;

sound/firewire/isight.c

102

if (isight->period_counter >= runtime->period_size) {

sound/firewire/isight.c

103

isight->period_counter -= runtime->period_size;

sound/firewire/isight.c

104

snd_pcm_period_elapsed(isight->pcm);

sound/firewire/isight.c

108

static void isight_samples(struct isight *isight,

sound/firewire/isight.c

114

if (!READ_ONCE(isight->pcm_running))

sound/firewire/isight.c

117

runtime = isight->pcm->runtime;

sound/firewire/isight.c

118

if (isight->buffer_pointer + count <= runtime->buffer_size) {

sound/firewire/isight.c

119

memcpy(runtime->dma_area + isight->buffer_pointer * 4,

sound/firewire/isight.c

122

count1 = runtime->buffer_size - isight->buffer_pointer;

sound/firewire/isight.c

123

memcpy(runtime->dma_area + isight->buffer_pointer * 4,

sound/firewire/isight.c

129

isight_update_pointers(isight, count);

sound/firewire/isight.c

132

static void isight_pcm_abort(struct isight *isight)

sound/firewire/isight.c

134

if (READ_ONCE(isight->pcm_active))

sound/firewire/isight.c

135

snd_pcm_stop_xrun(isight->pcm);

sound/firewire/isight.c

138

static void isight_dropped_samples(struct isight *isight, unsigned int total)

sound/firewire/isight.c

144

if (!READ_ONCE(isight->pcm_running))

sound/firewire/isight.c

147

runtime = isight->pcm->runtime;

sound/firewire/isight.c

148

dropped = total - isight->total_samples;

sound/firewire/isight.c

150

if (isight->buffer_pointer + dropped <= runtime->buffer_size) {

sound/firewire/isight.c

151

memset(runtime->dma_area + isight->buffer_pointer * 4,

sound/firewire/isight.c

154

count1 = runtime->buffer_size - isight->buffer_pointer;

sound/firewire/isight.c

155

memset(runtime->dma_area + isight->buffer_pointer * 4,

sound/firewire/isight.c

159

isight_update_pointers(isight, dropped);

sound/firewire/isight.c

161

isight_pcm_abort(isight);

sound/firewire/isight.c

168

struct isight *isight = data;

sound/firewire/isight.c

173

if (isight->packet_index < 0)

sound/firewire/isight.c

175

index = isight->packet_index;

sound/firewire/isight.c

176

payload = isight->buffer.packets[index].buffer;

sound/firewire/isight.c

184

if (unlikely(total != isight->total_samples)) {

sound/firewire/isight.c

185

if (!isight->first_packet)

sound/firewire/isight.c

186

isight_dropped_samples(isight, total);

sound/firewire/isight.c

187

isight->first_packet = false;

sound/firewire/isight.c

188

isight->total_samples = total;

sound/firewire/isight.c

191

isight_samples(isight, payload->samples, count);

sound/firewire/isight.c

192

isight->total_samples += count;

sound/firewire/isight.c

196

err = fw_iso_context_queue(isight->context, &audio_packet,

sound/firewire/isight.c

197

&isight->buffer.iso_buffer,

sound/firewire/isight.c

198

isight->buffer.packets[index].offset);

sound/firewire/isight.c

200

dev_err(&isight->unit->device, "queueing error: %d\n", err);

sound/firewire/isight.c

201

isight_pcm_abort(isight);

sound/firewire/isight.c

202

isight->packet_index = -1;

sound/firewire/isight.c

205

fw_iso_context_queue_flush(isight->context);

sound/firewire/isight.c

209

isight->packet_index = index;

sound/firewire/isight.c

212

static int isight_connect(struct isight *isight)

sound/firewire/isight.c

218

ch = fw_iso_resources_allocate(&isight->resources,

sound/firewire/isight.c

220

isight->device->max_speed);

sound/firewire/isight.c

226

value = cpu_to_be32(ch | (isight->device->max_speed << SPEED_SHIFT));

sound/firewire/isight.c

227

err = snd_fw_transaction(isight->unit, TCODE_WRITE_QUADLET_REQUEST,

sound/firewire/isight.c

228

isight->audio_base + REG_ISO_TX_CONFIG,

sound/firewire/isight.c

230

isight->resources.generation);

sound/firewire/isight.c

232

fw_iso_resources_free(&isight->resources);

sound/firewire/isight.c

241

fw_iso_resources_free(&isight->resources);

sound/firewire/isight.c

266

struct isight *isight = substream->private_data;

sound/firewire/isight.c

270

return iso_packets_buffer_init(&isight->buffer, isight->unit,

sound/firewire/isight.c

278

struct isight *isight = substream->private_data;

sound/firewire/isight.c

280

iso_packets_buffer_destroy(&isight->buffer, isight->unit);

sound/firewire/isight.c

288

struct isight *isight = substream->private_data;

sound/firewire/isight.c

290

WRITE_ONCE(isight->pcm_active, true);

sound/firewire/isight.c

295

static int reg_read(struct isight *isight, int offset, __be32 *value)

sound/firewire/isight.c

297

return snd_fw_transaction(isight->unit, TCODE_READ_QUADLET_REQUEST,

sound/firewire/isight.c

298

isight->audio_base + offset, value, 4, 0);

sound/firewire/isight.c

301

static int reg_write(struct isight *isight, int offset, __be32 value)

sound/firewire/isight.c

303

return snd_fw_transaction(isight->unit, TCODE_WRITE_QUADLET_REQUEST,

sound/firewire/isight.c

304

isight->audio_base + offset, &value, 4, 0);

sound/firewire/isight.c

307

static void isight_stop_streaming(struct isight *isight)

sound/firewire/isight.c

311

if (!isight->context)

sound/firewire/isight.c

314

fw_iso_context_stop(isight->context);

sound/firewire/isight.c

315

fw_iso_context_destroy(isight->context);

sound/firewire/isight.c

316

isight->context = NULL;

sound/firewire/isight.c

317

fw_iso_resources_free(&isight->resources);

sound/firewire/isight.c

319

snd_fw_transaction(isight->unit, TCODE_WRITE_QUADLET_REQUEST,

sound/firewire/isight.c

320

isight->audio_base + REG_AUDIO_ENABLE,

sound/firewire/isight.c

326

struct isight *isight = substream->private_data;

sound/firewire/isight.c

328

WRITE_ONCE(isight->pcm_active, false);

sound/firewire/isight.c

330

guard(mutex)(&isight->mutex);

sound/firewire/isight.c

331

isight_stop_streaming(isight);

sound/firewire/isight.c

336

static int isight_start_streaming(struct isight *isight)

sound/firewire/isight.c

341

if (isight->context) {

sound/firewire/isight.c

342

if (isight->packet_index < 0)

sound/firewire/isight.c

343

isight_stop_streaming(isight);

sound/firewire/isight.c

348

err = reg_write(isight, REG_SAMPLE_RATE, cpu_to_be32(RATE_48000));

sound/firewire/isight.c

352

err = isight_connect(isight);

sound/firewire/isight.c

356

err = reg_write(isight, REG_AUDIO_ENABLE, cpu_to_be32(AUDIO_ENABLE));

sound/firewire/isight.c

360

isight->context = fw_iso_context_create(isight->device->card,

sound/firewire/isight.c

362

isight->resources.channel,

sound/firewire/isight.c

363

isight->device->max_speed,

sound/firewire/isight.c

364

4, isight_packet, isight);

sound/firewire/isight.c

365

if (IS_ERR(isight->context)) {

sound/firewire/isight.c

366

err = PTR_ERR(isight->context);

sound/firewire/isight.c

367

isight->context = NULL;

sound/firewire/isight.c

372

err = fw_iso_context_queue(isight->context, &audio_packet,

sound/firewire/isight.c

373

&isight->buffer.iso_buffer,

sound/firewire/isight.c

374

isight->buffer.packets[i].offset);

sound/firewire/isight.c

379

isight->first_packet = true;

sound/firewire/isight.c

380

isight->packet_index = 0;

sound/firewire/isight.c

382

err = fw_iso_context_start(isight->context, -1, 0,

sound/firewire/isight.c

390

fw_iso_context_destroy(isight->context);

sound/firewire/isight.c

391

isight->context = NULL;

sound/firewire/isight.c

393

fw_iso_resources_free(&isight->resources);

sound/firewire/isight.c

394

reg_write(isight, REG_AUDIO_ENABLE, 0);

sound/firewire/isight.c

401

struct isight *isight = substream->private_data;

sound/firewire/isight.c

403

isight->buffer_pointer = 0;

sound/firewire/isight.c

404

isight->period_counter = 0;

sound/firewire/isight.c

406

guard(mutex)(&isight->mutex);

sound/firewire/isight.c

407

return isight_start_streaming(isight);

sound/firewire/isight.c

412

struct isight *isight = substream->private_data;

sound/firewire/isight.c

416

WRITE_ONCE(isight->pcm_running, true);

sound/firewire/isight.c

419

WRITE_ONCE(isight->pcm_running, false);

sound/firewire/isight.c

429

struct isight *isight = substream->private_data;

sound/firewire/isight.c

431

return READ_ONCE(isight->buffer_pointer);

sound/firewire/isight.c

434

static int isight_create_pcm(struct isight *isight)

sound/firewire/isight.c

448

err = snd_pcm_new(isight->card, "iSight", 0, 0, 1, &pcm);

sound/firewire/isight.c

451

pcm->private_data = isight;

sound/firewire/isight.c

454

isight->pcm = pcm->streams[SNDRV_PCM_STREAM_CAPTURE].substream;

sound/firewire/isight.c

455

isight->pcm->ops = &ops;

sound/firewire/isight.c

464

struct isight *isight = ctl->private_data;

sound/firewire/isight.c

468

info->value.integer.min = isight->gain_min;

sound/firewire/isight.c

469

info->value.integer.max = isight->gain_max;

sound/firewire/isight.c

477

struct isight *isight = ctl->private_data;

sound/firewire/isight.c

481

err = reg_read(isight, REG_GAIN, &gain);

sound/firewire/isight.c

493

struct isight *isight = ctl->private_data;

sound/firewire/isight.c

495

if (value->value.integer.value[0] < isight->gain_min ||

sound/firewire/isight.c

496

value->value.integer.value[0] > isight->gain_max)

sound/firewire/isight.c

499

return reg_write(isight, REG_GAIN,

sound/firewire/isight.c

506

struct isight *isight = ctl->private_data;

sound/firewire/isight.c

510

err = reg_read(isight, REG_MUTE, &mute);

sound/firewire/isight.c

522

struct isight *isight = ctl->private_data;

sound/firewire/isight.c

524

return reg_write(isight, REG_MUTE,

sound/firewire/isight.c

528

static int isight_create_mixer(struct isight *isight)

sound/firewire/isight.c

550

err = reg_read(isight, REG_GAIN_RAW_START, &value);

sound/firewire/isight.c

553

isight->gain_min = be32_to_cpu(value);

sound/firewire/isight.c

555

err = reg_read(isight, REG_GAIN_RAW_END, &value);

sound/firewire/isight.c

558

isight->gain_max = be32_to_cpu(value);

sound/firewire/isight.c

560

isight->gain_tlv[SNDRV_CTL_TLVO_TYPE] = SNDRV_CTL_TLVT_DB_MINMAX;

sound/firewire/isight.c

561

isight->gain_tlv[SNDRV_CTL_TLVO_LEN] = 2 * sizeof(unsigned int);

sound/firewire/isight.c

563

err = reg_read(isight, REG_GAIN_DB_START, &value);

sound/firewire/isight.c

566

isight->gain_tlv[SNDRV_CTL_TLVO_DB_MINMAX_MIN] =

sound/firewire/isight.c

569

err = reg_read(isight, REG_GAIN_DB_END, &value);

sound/firewire/isight.c

572

isight->gain_tlv[SNDRV_CTL_TLVO_DB_MINMAX_MAX] =

sound/firewire/isight.c

575

ctl = snd_ctl_new1(&gain_control, isight);

sound/firewire/isight.c

577

ctl->tlv.p = isight->gain_tlv;

sound/firewire/isight.c

578

err = snd_ctl_add(isight->card, ctl);

sound/firewire/isight.c

582

err = snd_ctl_add(isight->card, snd_ctl_new1(&mute_control, isight));

sound/firewire/isight.c

591

struct isight *isight = card->private_data;

sound/firewire/isight.c

593

fw_iso_resources_destroy(&isight->resources);

sound/firewire/isight.c

613

struct isight *isight;

sound/firewire/isight.c

617

sizeof(*isight), &card);

sound/firewire/isight.c

621

isight = card->private_data;

sound/firewire/isight.c

622

isight->card = card;

sound/firewire/isight.c

623

mutex_init(&isight->mutex);

sound/firewire/isight.c

624

isight->unit = fw_unit_get(unit);

sound/firewire/isight.c

625

isight->device = fw_dev;

sound/firewire/isight.c

626

isight->audio_base = get_unit_base(unit);

sound/firewire/isight.c

627

if (!isight->audio_base) {

sound/firewire/isight.c

632

fw_iso_resources_init(&isight->resources, unit);

sound/firewire/isight.c

644

err = isight_create_pcm(isight);

sound/firewire/isight.c

648

err = isight_create_mixer(isight);

sound/firewire/isight.c

656

dev_set_drvdata(&unit->device, isight);

sound/firewire/isight.c

662

mutex_destroy(&isight->mutex);

sound/firewire/isight.c

663

fw_unit_put(isight->unit);

sound/firewire/isight.c

670

struct isight *isight = dev_get_drvdata(&unit->device);

sound/firewire/isight.c

672

if (fw_iso_resources_update(&isight->resources) < 0) {

sound/firewire/isight.c

673

isight_pcm_abort(isight);

sound/firewire/isight.c

675

guard(mutex)(&isight->mutex);

sound/firewire/isight.c

676

isight_stop_streaming(isight);

sound/firewire/isight.c

682

struct isight *isight = dev_get_drvdata(&unit->device);

sound/firewire/isight.c

684

isight_pcm_abort(isight);

sound/firewire/isight.c

686

snd_card_disconnect(isight->card);

sound/firewire/isight.c

688

scoped_guard(mutex, &isight->mutex) {

sound/firewire/isight.c

689

isight_stop_streaming(isight);

sound/firewire/isight.c

693

snd_card_free(isight->card);

sound/firewire/isight.c

695

mutex_destroy(&isight->mutex);

sound/firewire/isight.c

696

fw_unit_put(isight->unit);

sound/firewire/isight.c

88

static void isight_update_pointers(struct isight *isight, unsigned int count)

sound/firewire/isight.c

90

struct snd_pcm_runtime *runtime = isight->pcm->runtime;

sound/firewire/isight.c

95

ptr = isight->buffer_pointer;

sound/firewire/isight.c

99

WRITE_ONCE(isight->buffer_pointer, ptr);