| // SPDX-License-Identifier: GPL-2.0-or-later |
| /* |
| * Support for Digigram Lola PCI-e boards |
| * |
| * Copyright (c) 2011 Takashi Iwai <tiwai@suse.de> |
| */ |
| |
| #include <linux/kernel.h> |
| #include <linux/init.h> |
| #include <linux/dma-mapping.h> |
| #include <linux/pci.h> |
| #include <linux/delay.h> |
| #include <sound/core.h> |
| #include <sound/pcm.h> |
| #include "lola.h" |
| |
| #define LOLA_MAX_BDL_ENTRIES 8 |
| #define LOLA_MAX_BUF_SIZE (1024*1024*1024) |
| #define LOLA_BDL_ENTRY_SIZE (16 * 16) |
| |
| static struct lola_pcm *lola_get_pcm(struct snd_pcm_substream *substream) |
| { |
| struct lola *chip = snd_pcm_substream_chip(substream); |
| return &chip->pcm[substream->stream]; |
| } |
| |
| static struct lola_stream *lola_get_stream(struct snd_pcm_substream *substream) |
| { |
| struct lola_pcm *pcm = lola_get_pcm(substream); |
| unsigned int idx = substream->number; |
| return &pcm->streams[idx]; |
| } |
| |
| static unsigned int lola_get_lrc(struct lola *chip) |
| { |
| return lola_readl(chip, BAR1, LRC); |
| } |
| |
| static unsigned int lola_get_tstamp(struct lola *chip, bool quick_no_sync) |
| { |
| unsigned int tstamp = lola_get_lrc(chip) >> 8; |
| if (chip->granularity) { |
| unsigned int wait_banks = quick_no_sync ? 0 : 8; |
| tstamp += (wait_banks + 1) * chip->granularity - 1; |
| tstamp -= tstamp % chip->granularity; |
| } |
| return tstamp << 8; |
| } |
| |
| /* clear any pending interrupt status */ |
| static void lola_stream_clear_pending_irq(struct lola *chip, |
| struct lola_stream *str) |
| { |
| unsigned int val = lola_dsd_read(chip, str->dsd, STS); |
| val &= LOLA_DSD_STS_DESE | LOLA_DSD_STS_BCIS; |
| if (val) |
| lola_dsd_write(chip, str->dsd, STS, val); |
| } |
| |
| static void lola_stream_start(struct lola *chip, struct lola_stream *str, |
| unsigned int tstamp) |
| { |
| lola_stream_clear_pending_irq(chip, str); |
| lola_dsd_write(chip, str->dsd, CTL, |
| LOLA_DSD_CTL_SRUN | |
| LOLA_DSD_CTL_IOCE | |
| LOLA_DSD_CTL_DEIE | |
| LOLA_DSD_CTL_VLRCV | |
| tstamp); |
| } |
| |
| static void lola_stream_stop(struct lola *chip, struct lola_stream *str, |
| unsigned int tstamp) |
| { |
| lola_dsd_write(chip, str->dsd, CTL, |
| LOLA_DSD_CTL_IOCE | |
| LOLA_DSD_CTL_DEIE | |
| LOLA_DSD_CTL_VLRCV | |
| tstamp); |
| lola_stream_clear_pending_irq(chip, str); |
| } |
| |
| static void wait_for_srst_clear(struct lola *chip, struct lola_stream *str) |
| { |
| unsigned long end_time = jiffies + msecs_to_jiffies(200); |
| while (time_before(jiffies, end_time)) { |
| unsigned int val; |
| val = lola_dsd_read(chip, str->dsd, CTL); |
| if (!(val & LOLA_DSD_CTL_SRST)) |
| return; |
| msleep(1); |
| } |
| dev_warn(chip->card->dev, "SRST not clear (stream %d)\n", str->dsd); |
| } |
| |
| static int lola_stream_wait_for_fifo(struct lola *chip, |
| struct lola_stream *str, |
| bool ready) |
| { |
| unsigned int val = ready ? LOLA_DSD_STS_FIFORDY : 0; |
| unsigned long end_time = jiffies + msecs_to_jiffies(200); |
| while (time_before(jiffies, end_time)) { |
| unsigned int reg = lola_dsd_read(chip, str->dsd, STS); |
| if ((reg & LOLA_DSD_STS_FIFORDY) == val) |
| return 0; |
| msleep(1); |
| } |
| dev_warn(chip->card->dev, "FIFO not ready (stream %d)\n", str->dsd); |
| return -EIO; |
| } |
| |
| /* sync for FIFO ready/empty for all linked streams; |
| * clear paused flag when FIFO gets ready again |
| */ |
| static int lola_sync_wait_for_fifo(struct lola *chip, |
| struct snd_pcm_substream *substream, |
| bool ready) |
| { |
| unsigned int val = ready ? LOLA_DSD_STS_FIFORDY : 0; |
| unsigned long end_time = jiffies + msecs_to_jiffies(200); |
| struct snd_pcm_substream *s; |
| int pending = 0; |
| |
| while (time_before(jiffies, end_time)) { |
| pending = 0; |
| snd_pcm_group_for_each_entry(s, substream) { |
| struct lola_stream *str; |
| if (s->pcm->card != substream->pcm->card) |
| continue; |
| str = lola_get_stream(s); |
| if (str->prepared && str->paused) { |
| unsigned int reg; |
| reg = lola_dsd_read(chip, str->dsd, STS); |
| if ((reg & LOLA_DSD_STS_FIFORDY) != val) { |
| pending = str->dsd + 1; |
| break; |
| } |
| if (ready) |
| str->paused = 0; |
| } |
| } |
| if (!pending) |
| return 0; |
| msleep(1); |
| } |
| dev_warn(chip->card->dev, "FIFO not ready (pending %d)\n", pending - 1); |
| return -EIO; |
| } |
| |
| /* finish pause - prepare for a new resume */ |
| static void lola_sync_pause(struct lola *chip, |
| struct snd_pcm_substream *substream) |
| { |
| struct snd_pcm_substream *s; |
| |
| lola_sync_wait_for_fifo(chip, substream, false); |
| snd_pcm_group_for_each_entry(s, substream) { |
| struct lola_stream *str; |
| if (s->pcm->card != substream->pcm->card) |
| continue; |
| str = lola_get_stream(s); |
| if (str->paused && str->prepared) |
| lola_dsd_write(chip, str->dsd, CTL, LOLA_DSD_CTL_SRUN | |
| LOLA_DSD_CTL_IOCE | LOLA_DSD_CTL_DEIE); |
| } |
| lola_sync_wait_for_fifo(chip, substream, true); |
| } |
| |
| static void lola_stream_reset(struct lola *chip, struct lola_stream *str) |
| { |
| if (str->prepared) { |
| if (str->paused) |
| lola_sync_pause(chip, str->substream); |
| str->prepared = 0; |
| lola_dsd_write(chip, str->dsd, CTL, |
| LOLA_DSD_CTL_IOCE | LOLA_DSD_CTL_DEIE); |
| lola_stream_wait_for_fifo(chip, str, false); |
| lola_stream_clear_pending_irq(chip, str); |
| lola_dsd_write(chip, str->dsd, CTL, LOLA_DSD_CTL_SRST); |
| lola_dsd_write(chip, str->dsd, LVI, 0); |
| lola_dsd_write(chip, str->dsd, BDPU, 0); |
| lola_dsd_write(chip, str->dsd, BDPL, 0); |
| wait_for_srst_clear(chip, str); |
| } |
| } |
| |
| static const struct snd_pcm_hardware lola_pcm_hw = { |
| .info = (SNDRV_PCM_INFO_MMAP | |
| SNDRV_PCM_INFO_INTERLEAVED | |
| SNDRV_PCM_INFO_BLOCK_TRANSFER | |
| SNDRV_PCM_INFO_MMAP_VALID | |
| SNDRV_PCM_INFO_PAUSE), |
| .formats = (SNDRV_PCM_FMTBIT_S16_LE | |
| SNDRV_PCM_FMTBIT_S24_LE | |
| SNDRV_PCM_FMTBIT_S32_LE | |
| SNDRV_PCM_FMTBIT_FLOAT_LE), |
| .rates = SNDRV_PCM_RATE_8000_192000, |
| .rate_min = 8000, |
| .rate_max = 192000, |
| .channels_min = 1, |
| .channels_max = 2, |
| .buffer_bytes_max = LOLA_MAX_BUF_SIZE, |
| .period_bytes_min = 128, |
| .period_bytes_max = LOLA_MAX_BUF_SIZE / 2, |
| .periods_min = 2, |
| .periods_max = LOLA_MAX_BDL_ENTRIES, |
| .fifo_size = 0, |
| }; |
| |
| static int lola_pcm_open(struct snd_pcm_substream *substream) |
| { |
| struct lola *chip = snd_pcm_substream_chip(substream); |
| struct lola_pcm *pcm = lola_get_pcm(substream); |
| struct lola_stream *str = lola_get_stream(substream); |
| struct snd_pcm_runtime *runtime = substream->runtime; |
| |
| mutex_lock(&chip->open_mutex); |
| if (str->opened) { |
| mutex_unlock(&chip->open_mutex); |
| return -EBUSY; |
| } |
| str->substream = substream; |
| str->master = NULL; |
| str->opened = 1; |
| runtime->hw = lola_pcm_hw; |
| runtime->hw.channels_max = pcm->num_streams - str->index; |
| if (chip->sample_rate) { |
| /* sample rate is locked */ |
| runtime->hw.rate_min = chip->sample_rate; |
| runtime->hw.rate_max = chip->sample_rate; |
| } else { |
| runtime->hw.rate_min = chip->sample_rate_min; |
| runtime->hw.rate_max = chip->sample_rate_max; |
| } |
| chip->ref_count_rate++; |
| snd_pcm_hw_constraint_integer(runtime, SNDRV_PCM_HW_PARAM_PERIODS); |
| /* period size = multiple of chip->granularity (8, 16 or 32 frames)*/ |
| snd_pcm_hw_constraint_step(runtime, 0, SNDRV_PCM_HW_PARAM_BUFFER_SIZE, |
| chip->granularity); |
| snd_pcm_hw_constraint_step(runtime, 0, SNDRV_PCM_HW_PARAM_PERIOD_SIZE, |
| chip->granularity); |
| mutex_unlock(&chip->open_mutex); |
| return 0; |
| } |
| |
| static void lola_cleanup_slave_streams(struct lola_pcm *pcm, |
| struct lola_stream *str) |
| { |
| int i; |
| for (i = str->index + 1; i < pcm->num_streams; i++) { |
| struct lola_stream *s = &pcm->streams[i]; |
| if (s->master != str) |
| break; |
| s->master = NULL; |
| s->opened = 0; |
| } |
| } |
| |
| static int lola_pcm_close(struct snd_pcm_substream *substream) |
| { |
| struct lola *chip = snd_pcm_substream_chip(substream); |
| struct lola_stream *str = lola_get_stream(substream); |
| |
| mutex_lock(&chip->open_mutex); |
| if (str->substream == substream) { |
| str->substream = NULL; |
| str->opened = 0; |
| } |
| if (--chip->ref_count_rate == 0) { |
| /* release sample rate */ |
| chip->sample_rate = 0; |
| } |
| mutex_unlock(&chip->open_mutex); |
| return 0; |
| } |
| |
| static int lola_pcm_hw_params(struct snd_pcm_substream *substream, |
| struct snd_pcm_hw_params *hw_params) |
| { |
| struct lola_stream *str = lola_get_stream(substream); |
| |
| str->bufsize = 0; |
| str->period_bytes = 0; |
| str->format_verb = 0; |
| return snd_pcm_lib_malloc_pages(substream, |
| params_buffer_bytes(hw_params)); |
| } |
| |
| static int lola_pcm_hw_free(struct snd_pcm_substream *substream) |
| { |
| struct lola *chip = snd_pcm_substream_chip(substream); |
| struct lola_pcm *pcm = lola_get_pcm(substream); |
| struct lola_stream *str = lola_get_stream(substream); |
| |
| mutex_lock(&chip->open_mutex); |
| lola_stream_reset(chip, str); |
| lola_cleanup_slave_streams(pcm, str); |
| mutex_unlock(&chip->open_mutex); |
| return snd_pcm_lib_free_pages(substream); |
| } |
| |
| /* |
| * set up a BDL entry |
| */ |
| static int setup_bdle(struct snd_pcm_substream *substream, |
| struct lola_stream *str, __le32 **bdlp, |
| int ofs, int size) |
| { |
| __le32 *bdl = *bdlp; |
| |
| while (size > 0) { |
| dma_addr_t addr; |
| int chunk; |
| |
| if (str->frags >= LOLA_MAX_BDL_ENTRIES) |
| return -EINVAL; |
| |
| addr = snd_pcm_sgbuf_get_addr(substream, ofs); |
| /* program the address field of the BDL entry */ |
| bdl[0] = cpu_to_le32((u32)addr); |
| bdl[1] = cpu_to_le32(upper_32_bits(addr)); |
| /* program the size field of the BDL entry */ |
| chunk = snd_pcm_sgbuf_get_chunk_size(substream, ofs, size); |
| bdl[2] = cpu_to_le32(chunk); |
| /* program the IOC to enable interrupt |
| * only when the whole fragment is processed |
| */ |
| size -= chunk; |
| bdl[3] = size ? 0 : cpu_to_le32(0x01); |
| bdl += 4; |
| str->frags++; |
| ofs += chunk; |
| } |
| *bdlp = bdl; |
| return ofs; |
| } |
| |
| /* |
| * set up BDL entries |
| */ |
| static int lola_setup_periods(struct lola *chip, struct lola_pcm *pcm, |
| struct snd_pcm_substream *substream, |
| struct lola_stream *str) |
| { |
| __le32 *bdl; |
| int i, ofs, periods, period_bytes; |
| |
| period_bytes = str->period_bytes; |
| periods = str->bufsize / period_bytes; |
| |
| /* program the initial BDL entries */ |
| bdl = (__le32 *)(pcm->bdl.area + LOLA_BDL_ENTRY_SIZE * str->index); |
| ofs = 0; |
| str->frags = 0; |
| for (i = 0; i < periods; i++) { |
| ofs = setup_bdle(substream, str, &bdl, ofs, period_bytes); |
| if (ofs < 0) |
| goto error; |
| } |
| return 0; |
| |
| error: |
| dev_err(chip->card->dev, "Too many BDL entries: buffer=%d, period=%d\n", |
| str->bufsize, period_bytes); |
| return -EINVAL; |
| } |
| |
| static unsigned int lola_get_format_verb(struct snd_pcm_substream *substream) |
| { |
| unsigned int verb; |
| |
| switch (substream->runtime->format) { |
| case SNDRV_PCM_FORMAT_S16_LE: |
| verb = 0x00000000; |
| break; |
| case SNDRV_PCM_FORMAT_S24_LE: |
| verb = 0x00000200; |
| break; |
| case SNDRV_PCM_FORMAT_S32_LE: |
| verb = 0x00000300; |
| break; |
| case SNDRV_PCM_FORMAT_FLOAT_LE: |
| verb = 0x00001300; |
| break; |
| default: |
| return 0; |
| } |
| verb |= substream->runtime->channels; |
| return verb; |
| } |
| |
| static int lola_set_stream_config(struct lola *chip, |
| struct lola_stream *str, |
| int channels) |
| { |
| int i, err; |
| unsigned int verb, val; |
| |
| /* set format info for all channels |
| * (with only one command for the first channel) |
| */ |
| err = lola_codec_read(chip, str->nid, LOLA_VERB_SET_STREAM_FORMAT, |
| str->format_verb, 0, &val, NULL); |
| if (err < 0) { |
| dev_err(chip->card->dev, "Cannot set stream format 0x%x\n", |
| str->format_verb); |
| return err; |
| } |
| |
| /* update stream - channel config */ |
| for (i = 0; i < channels; i++) { |
| verb = (str->index << 6) | i; |
| err = lola_codec_read(chip, str[i].nid, |
| LOLA_VERB_SET_CHANNEL_STREAMID, 0, verb, |
| &val, NULL); |
| if (err < 0) { |
| dev_err(chip->card->dev, |
| "Cannot set stream channel %d\n", i); |
| return err; |
| } |
| } |
| return 0; |
| } |
| |
| /* |
| * set up the SD for streaming |
| */ |
| static int lola_setup_controller(struct lola *chip, struct lola_pcm *pcm, |
| struct lola_stream *str) |
| { |
| dma_addr_t bdl; |
| |
| if (str->prepared) |
| return -EINVAL; |
| |
| /* set up BDL */ |
| bdl = pcm->bdl.addr + LOLA_BDL_ENTRY_SIZE * str->index; |
| lola_dsd_write(chip, str->dsd, BDPL, (u32)bdl); |
| lola_dsd_write(chip, str->dsd, BDPU, upper_32_bits(bdl)); |
| /* program the stream LVI (last valid index) of the BDL */ |
| lola_dsd_write(chip, str->dsd, LVI, str->frags - 1); |
| lola_stream_clear_pending_irq(chip, str); |
| |
| lola_dsd_write(chip, str->dsd, CTL, |
| LOLA_DSD_CTL_IOCE | LOLA_DSD_CTL_DEIE | LOLA_DSD_CTL_SRUN); |
| |
| str->prepared = 1; |
| |
| return lola_stream_wait_for_fifo(chip, str, true); |
| } |
| |
| static int lola_pcm_prepare(struct snd_pcm_substream *substream) |
| { |
| struct lola *chip = snd_pcm_substream_chip(substream); |
| struct lola_pcm *pcm = lola_get_pcm(substream); |
| struct lola_stream *str = lola_get_stream(substream); |
| struct snd_pcm_runtime *runtime = substream->runtime; |
| unsigned int bufsize, period_bytes, format_verb; |
| int i, err; |
| |
| mutex_lock(&chip->open_mutex); |
| lola_stream_reset(chip, str); |
| lola_cleanup_slave_streams(pcm, str); |
| if (str->index + runtime->channels > pcm->num_streams) { |
| mutex_unlock(&chip->open_mutex); |
| return -EINVAL; |
| } |
| for (i = 1; i < runtime->channels; i++) { |
| str[i].master = str; |
| str[i].opened = 1; |
| } |
| mutex_unlock(&chip->open_mutex); |
| |
| bufsize = snd_pcm_lib_buffer_bytes(substream); |
| period_bytes = snd_pcm_lib_period_bytes(substream); |
| format_verb = lola_get_format_verb(substream); |
| |
| str->bufsize = bufsize; |
| str->period_bytes = period_bytes; |
| str->format_verb = format_verb; |
| |
| err = lola_setup_periods(chip, pcm, substream, str); |
| if (err < 0) |
| return err; |
| |
| err = lola_set_sample_rate(chip, runtime->rate); |
| if (err < 0) |
| return err; |
| chip->sample_rate = runtime->rate; /* sample rate gets locked */ |
| |
| err = lola_set_stream_config(chip, str, runtime->channels); |
| if (err < 0) |
| return err; |
| |
| err = lola_setup_controller(chip, pcm, str); |
| if (err < 0) { |
| lola_stream_reset(chip, str); |
| return err; |
| } |
| |
| return 0; |
| } |
| |
| static int lola_pcm_trigger(struct snd_pcm_substream *substream, int cmd) |
| { |
| struct lola *chip = snd_pcm_substream_chip(substream); |
| struct lola_stream *str; |
| struct snd_pcm_substream *s; |
| unsigned int start; |
| unsigned int tstamp; |
| bool sync_streams; |
| |
| switch (cmd) { |
| case SNDRV_PCM_TRIGGER_START: |
| case SNDRV_PCM_TRIGGER_PAUSE_RELEASE: |
| case SNDRV_PCM_TRIGGER_RESUME: |
| start = 1; |
| break; |
| case SNDRV_PCM_TRIGGER_PAUSE_PUSH: |
| case SNDRV_PCM_TRIGGER_SUSPEND: |
| case SNDRV_PCM_TRIGGER_STOP: |
| start = 0; |
| break; |
| default: |
| return -EINVAL; |
| } |
| |
| /* |
| * sample correct synchronization is only needed starting several |
| * streams. On stop or if only one stream do as quick as possible |
| */ |
| sync_streams = (start && snd_pcm_stream_linked(substream)); |
| tstamp = lola_get_tstamp(chip, !sync_streams); |
| spin_lock(&chip->reg_lock); |
| snd_pcm_group_for_each_entry(s, substream) { |
| if (s->pcm->card != substream->pcm->card) |
| continue; |
| str = lola_get_stream(s); |
| if (start) |
| lola_stream_start(chip, str, tstamp); |
| else |
| lola_stream_stop(chip, str, tstamp); |
| str->running = start; |
| str->paused = !start; |
| snd_pcm_trigger_done(s, substream); |
| } |
| spin_unlock(&chip->reg_lock); |
| return 0; |
| } |
| |
| static snd_pcm_uframes_t lola_pcm_pointer(struct snd_pcm_substream *substream) |
| { |
| struct lola *chip = snd_pcm_substream_chip(substream); |
| struct lola_stream *str = lola_get_stream(substream); |
| unsigned int pos = lola_dsd_read(chip, str->dsd, LPIB); |
| |
| if (pos >= str->bufsize) |
| pos = 0; |
| return bytes_to_frames(substream->runtime, pos); |
| } |
| |
| void lola_pcm_update(struct lola *chip, struct lola_pcm *pcm, unsigned int bits) |
| { |
| int i; |
| |
| for (i = 0; bits && i < pcm->num_streams; i++) { |
| if (bits & (1 << i)) { |
| struct lola_stream *str = &pcm->streams[i]; |
| if (str->substream && str->running) |
| snd_pcm_period_elapsed(str->substream); |
| bits &= ~(1 << i); |
| } |
| } |
| } |
| |
| static const struct snd_pcm_ops lola_pcm_ops = { |
| .open = lola_pcm_open, |
| .close = lola_pcm_close, |
| .ioctl = snd_pcm_lib_ioctl, |
| .hw_params = lola_pcm_hw_params, |
| .hw_free = lola_pcm_hw_free, |
| .prepare = lola_pcm_prepare, |
| .trigger = lola_pcm_trigger, |
| .pointer = lola_pcm_pointer, |
| }; |
| |
| int lola_create_pcm(struct lola *chip) |
| { |
| struct snd_pcm *pcm; |
| int i, err; |
| |
| for (i = 0; i < 2; i++) { |
| err = snd_dma_alloc_pages(SNDRV_DMA_TYPE_DEV, |
| &chip->pci->dev, |
| PAGE_SIZE, &chip->pcm[i].bdl); |
| if (err < 0) |
| return err; |
| } |
| |
| err = snd_pcm_new(chip->card, "Digigram Lola", 0, |
| chip->pcm[SNDRV_PCM_STREAM_PLAYBACK].num_streams, |
| chip->pcm[SNDRV_PCM_STREAM_CAPTURE].num_streams, |
| &pcm); |
| if (err < 0) |
| return err; |
| strlcpy(pcm->name, "Digigram Lola", sizeof(pcm->name)); |
| pcm->private_data = chip; |
| for (i = 0; i < 2; i++) { |
| if (chip->pcm[i].num_streams) |
| snd_pcm_set_ops(pcm, i, &lola_pcm_ops); |
| } |
| /* buffer pre-allocation */ |
| snd_pcm_lib_preallocate_pages_for_all(pcm, SNDRV_DMA_TYPE_DEV_SG, |
| &chip->pci->dev, |
| 1024 * 64, 32 * 1024 * 1024); |
| return 0; |
| } |
| |
| void lola_free_pcm(struct lola *chip) |
| { |
| snd_dma_free_pages(&chip->pcm[0].bdl); |
| snd_dma_free_pages(&chip->pcm[1].bdl); |
| } |
| |
| /* |
| */ |
| |
| static int lola_init_stream(struct lola *chip, struct lola_stream *str, |
| int idx, int nid, int dir) |
| { |
| unsigned int val; |
| int err; |
| |
| str->nid = nid; |
| str->index = idx; |
| str->dsd = idx; |
| if (dir == PLAY) |
| str->dsd += MAX_STREAM_IN_COUNT; |
| err = lola_read_param(chip, nid, LOLA_PAR_AUDIO_WIDGET_CAP, &val); |
| if (err < 0) { |
| dev_err(chip->card->dev, "Can't read wcaps for 0x%x\n", nid); |
| return err; |
| } |
| if (dir == PLAY) { |
| /* test TYPE and bits 0..11 (no test bit9 : Digital = 0/1) */ |
| if ((val & 0x00f00dff) != 0x00000010) { |
| dev_err(chip->card->dev, |
| "Invalid wcaps 0x%x for 0x%x\n", |
| val, nid); |
| return -EINVAL; |
| } |
| } else { |
| /* test TYPE and bits 0..11 (no test bit9 : Digital = 0/1) |
| * (bug : ignore bit8: Conn list = 0/1) |
| */ |
| if ((val & 0x00f00cff) != 0x00100010) { |
| dev_err(chip->card->dev, |
| "Invalid wcaps 0x%x for 0x%x\n", |
| val, nid); |
| return -EINVAL; |
| } |
| /* test bit9:DIGITAL and bit12:SRC_PRESENT*/ |
| if ((val & 0x00001200) == 0x00001200) |
| chip->input_src_caps_mask |= (1 << idx); |
| } |
| |
| err = lola_read_param(chip, nid, LOLA_PAR_STREAM_FORMATS, &val); |
| if (err < 0) { |
| dev_err(chip->card->dev, "Can't read FORMATS 0x%x\n", nid); |
| return err; |
| } |
| val &= 3; |
| if (val == 3) |
| str->can_float = true; |
| if (!(val & 1)) { |
| dev_err(chip->card->dev, |
| "Invalid formats 0x%x for 0x%x", val, nid); |
| return -EINVAL; |
| } |
| return 0; |
| } |
| |
| int lola_init_pcm(struct lola *chip, int dir, int *nidp) |
| { |
| struct lola_pcm *pcm = &chip->pcm[dir]; |
| int i, nid, err; |
| |
| nid = *nidp; |
| for (i = 0; i < pcm->num_streams; i++, nid++) { |
| err = lola_init_stream(chip, &pcm->streams[i], i, nid, dir); |
| if (err < 0) |
| return err; |
| } |
| *nidp = nid; |
| return 0; |
| } |