From ccc98865aa44184e34de8df96dc837726c978949 Mon Sep 17 00:00:00 2001 From: Takashi Iwai Date: Tue, 14 Apr 2015 22:06:53 +0200 Subject: [PATCH] ALSA: hda - Migrate more hdac_stream codes ... including dsp loader helpers. Lots of codes removed. Signed-off-by: Takashi Iwai --- sound/pci/hda/hda_controller.c | 428 ++++----------------------------- sound/pci/hda/hda_intel.c | 4 + sound/pci/hda/hda_tegra.c | 1 + 3 files changed, 54 insertions(+), 379 deletions(-) diff --git a/sound/pci/hda/hda_controller.c b/sound/pci/hda/hda_controller.c index 0b85c88c75ac..32f98f71c1e6 100644 --- a/sound/pci/hda/hda_controller.c +++ b/sound/pci/hda/hda_controller.c @@ -36,58 +36,6 @@ #define dsp_unlock(dev) snd_hdac_dsp_unlock(azx_stream(dev)) #define dsp_is_locked(dev) snd_hdac_stream_is_locked(azx_stream(dev)) -/* - * AZX stream operations. - */ - -/* - * set up the SD for streaming - */ -static int azx_setup_controller(struct azx *chip, struct azx_dev *azx_dev) -{ - unsigned int val; - /* make sure the run bit is zero for SD */ - snd_hdac_stream_clear(azx_stream(azx_dev)); - /* program the stream_tag */ - val = azx_sd_readl(chip, azx_dev, SD_CTL); - val = (val & ~SD_CTL_STREAM_TAG_MASK) | - (azx_dev->core.stream_tag << SD_CTL_STREAM_TAG_SHIFT); - if (!azx_snoop(chip)) - val |= SD_CTL_TRAFFIC_PRIO; - azx_sd_writel(chip, azx_dev, SD_CTL, val); - - /* program the length of samples in cyclic buffer */ - azx_sd_writel(chip, azx_dev, SD_CBL, azx_dev->core.bufsize); - - /* program the stream format */ - /* this value needs to be the same as the one programmed */ - azx_sd_writew(chip, azx_dev, SD_FORMAT, azx_dev->core.format_val); - - /* program the stream LVI (last valid index) of the BDL */ - azx_sd_writew(chip, azx_dev, SD_LVI, azx_dev->core.frags - 1); - - /* program the BDL address */ - /* lower BDL address */ - azx_sd_writel(chip, azx_dev, SD_BDLPL, (u32)azx_dev->core.bdl.addr); - /* upper BDL address */ - azx_sd_writel(chip, azx_dev, SD_BDLPU, - upper_32_bits(azx_dev->core.bdl.addr)); - - /* enable the position buffer */ - if (chip->get_position[0] != azx_get_pos_lpib || - chip->get_position[1] != azx_get_pos_lpib) { - if (!(azx_readl(chip, DPLBASE) & AZX_DPLBASE_ENABLE)) - azx_writel(chip, DPLBASE, - (u32)chip->posbuf.addr | AZX_DPLBASE_ENABLE); - } - - /* set the interrupt enable bits in the descriptor control register */ - azx_sd_writel(chip, azx_dev, SD_CTL, - azx_sd_readl(chip, azx_dev, SD_CTL) | SD_INT_MASK); - - return 0; -} - /* assign a stream for the PCM */ static inline struct azx_dev * azx_assign_device(struct azx *chip, struct snd_pcm_substream *substream) @@ -106,50 +54,6 @@ static inline void azx_release_device(struct azx_dev *azx_dev) snd_hdac_stream_release(azx_stream(azx_dev)); } -static cycle_t azx_cc_read(const struct cyclecounter *cc) -{ - struct azx_dev *azx_dev = container_of(cc, struct azx_dev, core.cc); - struct snd_pcm_substream *substream = azx_dev->core.substream; - struct azx_pcm *apcm = snd_pcm_substream_chip(substream); - struct azx *chip = apcm->chip; - - return azx_readl(chip, WALLCLK); -} - -static void azx_timecounter_init(struct snd_pcm_substream *substream, - bool force, cycle_t last) -{ - struct azx_dev *azx_dev = get_azx_dev(substream); - struct timecounter *tc = &azx_dev->core.tc; - struct cyclecounter *cc = &azx_dev->core.cc; - u64 nsec; - - cc->read = azx_cc_read; - cc->mask = CLOCKSOURCE_MASK(32); - - /* - * Converting from 24 MHz to ns means applying a 125/3 factor. - * To avoid any saturation issues in intermediate operations, - * the 125 factor is applied first. The division is applied - * last after reading the timecounter value. - * Applying the 1/3 factor as part of the multiplication - * requires at least 20 bits for a decent precision, however - * overflows occur after about 4 hours or less, not a option. - */ - - cc->mult = 125; /* saturation after 195 years */ - cc->shift = 0; - - nsec = 0; /* audio time is elapsed time since trigger */ - timecounter_init(tc, cc, nsec); - if (force) - /* - * force timecounter to use predefined value, - * used for synchronized starts - */ - tc->cycle_last = last; -} - static inline struct hda_pcm_stream * to_hda_pcm_stream(struct snd_pcm_substream *substream) { @@ -177,119 +81,6 @@ static u64 azx_adjust_codec_delay(struct snd_pcm_substream *substream, return (nsec > codec_nsecs) ? nsec - codec_nsecs : 0; } -/* - * set up a BDL entry - */ -static int setup_bdle(struct azx *chip, - struct snd_dma_buffer *dmab, - struct azx_dev *azx_dev, u32 **bdlp, - int ofs, int size, int with_ioc) -{ - u32 *bdl = *bdlp; - - while (size > 0) { - dma_addr_t addr; - int chunk; - - if (azx_dev->core.frags >= AZX_MAX_BDL_ENTRIES) - return -EINVAL; - - addr = snd_sgbuf_get_addr(dmab, 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_sgbuf_get_chunk_size(dmab, ofs, size); - /* one BDLE cannot cross 4K boundary on CTHDA chips */ - if (chip->driver_caps & AZX_DCAPS_4K_BDLE_BOUNDARY) { - u32 remain = 0x1000 - (ofs & 0xfff); - if (chunk > remain) - chunk = remain; - } - bdl[2] = cpu_to_le32(chunk); - /* program the IOC to enable interrupt - * only when the whole fragment is processed - */ - size -= chunk; - bdl[3] = (size || !with_ioc) ? 0 : cpu_to_le32(0x01); - bdl += 4; - azx_dev->core.frags++; - ofs += chunk; - } - *bdlp = bdl; - return ofs; -} - -/* - * set up BDL entries - */ -static int azx_setup_periods(struct azx *chip, - struct snd_pcm_substream *substream, - struct azx_dev *azx_dev) -{ - u32 *bdl; - int i, ofs, periods, period_bytes; - int pos_adj = 0; - - /* reset BDL address */ - azx_sd_writel(chip, azx_dev, SD_BDLPL, 0); - azx_sd_writel(chip, azx_dev, SD_BDLPU, 0); - - period_bytes = azx_dev->core.period_bytes; - periods = azx_dev->core.bufsize / period_bytes; - - /* program the initial BDL entries */ - bdl = (u32 *)azx_dev->core.bdl.area; - ofs = 0; - azx_dev->core.frags = 0; - - if (chip->bdl_pos_adj) - pos_adj = chip->bdl_pos_adj[chip->dev_index]; - if (!azx_dev->core.no_period_wakeup && pos_adj > 0) { - struct snd_pcm_runtime *runtime = substream->runtime; - int pos_align = pos_adj; - pos_adj = (pos_adj * runtime->rate + 47999) / 48000; - if (!pos_adj) - pos_adj = pos_align; - else - pos_adj = ((pos_adj + pos_align - 1) / pos_align) * - pos_align; - pos_adj = frames_to_bytes(runtime, pos_adj); - if (pos_adj >= period_bytes) { - dev_warn(chip->card->dev,"Too big adjustment %d\n", - pos_adj); - pos_adj = 0; - } else { - ofs = setup_bdle(chip, snd_pcm_get_dma_buf(substream), - azx_dev, - &bdl, ofs, pos_adj, true); - if (ofs < 0) - goto error; - } - } else - pos_adj = 0; - - for (i = 0; i < periods; i++) { - if (i == periods - 1 && pos_adj) - ofs = setup_bdle(chip, snd_pcm_get_dma_buf(substream), - azx_dev, &bdl, ofs, - period_bytes - pos_adj, 0); - else - ofs = setup_bdle(chip, snd_pcm_get_dma_buf(substream), - azx_dev, &bdl, ofs, - period_bytes, - !azx_dev->core.no_period_wakeup); - if (ofs < 0) - goto error; - } - return 0; - - error: - dev_err(chip->card->dev, "Too many BDL entries: buffer=%d, period=%d\n", - azx_dev->core.bufsize, period_bytes); - return -EINVAL; -} - /* * PCM ops */ @@ -300,13 +91,8 @@ static int azx_pcm_close(struct snd_pcm_substream *substream) struct hda_pcm_stream *hinfo = to_hda_pcm_stream(substream); struct azx *chip = apcm->chip; struct azx_dev *azx_dev = get_azx_dev(substream); - unsigned long flags; mutex_lock(&chip->open_mutex); - spin_lock_irqsave(&chip->reg_lock, flags); - azx_dev->core.substream = NULL; - azx_dev->core.running = 0; - spin_unlock_irqrestore(&chip->reg_lock, flags); azx_release_device(azx_dev); if (hinfo->ops.close) hinfo->ops.close(hinfo, apcm->codec, substream); @@ -346,14 +132,8 @@ static int azx_pcm_hw_free(struct snd_pcm_substream *substream) /* reset BDL address */ dsp_lock(azx_dev); - if (!dsp_is_locked(azx_dev)) { - azx_sd_writel(chip, azx_dev, SD_BDLPL, 0); - azx_sd_writel(chip, azx_dev, SD_BDLPU, 0); - azx_sd_writel(chip, azx_dev, SD_CTL, 0); - azx_dev->core.bufsize = 0; - azx_dev->core.period_bytes = 0; - azx_dev->core.format_val = 0; - } + if (!dsp_is_locked(azx_dev)) + snd_hdac_stream_cleanup(azx_stream(azx_dev)); snd_hda_codec_cleanup(apcm->codec, hinfo, substream); @@ -411,29 +191,12 @@ static int azx_pcm_prepare(struct snd_pcm_substream *substream) azx_dev->core.period_bytes = period_bytes; azx_dev->core.format_val = format_val; azx_dev->core.no_period_wakeup = runtime->no_period_wakeup; - err = azx_setup_periods(chip, substream, azx_dev); + err = snd_hdac_stream_setup_periods(azx_stream(azx_dev)); if (err < 0) goto unlock; } - /* when LPIB delay correction gives a small negative value, - * we ignore it; currently set the threshold statically to - * 64 frames - */ - if (runtime->period_size > 64) - azx_dev->core.delay_negative_threshold = -frames_to_bytes(runtime, 64); - else - azx_dev->core.delay_negative_threshold = 0; - - /* wallclk has 24Mhz clock source */ - azx_dev->core.period_wallclk = (((runtime->period_size * 24000) / - runtime->rate) * 1000); - azx_setup_controller(chip, azx_dev); - if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) - azx_dev->core.fifo_size = - azx_sd_readw(chip, azx_dev, SD_FIFOSIZE) + 1; - else - azx_dev->core.fifo_size = 0; + snd_hdac_stream_setup(azx_stream(azx_dev)); stream_tag = azx_dev->core.stream_tag; /* CA-IBG chips need the playback stream starting from 1 */ @@ -456,25 +219,31 @@ static int azx_pcm_trigger(struct snd_pcm_substream *substream, int cmd) struct azx *chip = apcm->chip; struct azx_dev *azx_dev; struct snd_pcm_substream *s; - int rstart = 0, start, nsync = 0, sbits = 0; - int nwait, timeout; + struct hdac_stream *hstr; + bool start; + int sbits = 0; + int sync_reg; azx_dev = get_azx_dev(substream); + hstr = azx_stream(azx_dev); + if (chip->driver_caps & AZX_DCAPS_OLD_SSYNC) + sync_reg = AZX_REG_OLD_SSYNC; + else + sync_reg = AZX_REG_SSYNC; if (dsp_is_locked(azx_dev) || !azx_dev->prepared) return -EPIPE; switch (cmd) { case SNDRV_PCM_TRIGGER_START: - rstart = 1; case SNDRV_PCM_TRIGGER_PAUSE_RELEASE: case SNDRV_PCM_TRIGGER_RESUME: - start = 1; + start = true; break; case SNDRV_PCM_TRIGGER_PAUSE_PUSH: case SNDRV_PCM_TRIGGER_SUSPEND: case SNDRV_PCM_TRIGGER_STOP: - start = 0; + start = false; break; default: return -EINVAL; @@ -485,18 +254,13 @@ static int azx_pcm_trigger(struct snd_pcm_substream *substream, int cmd) continue; azx_dev = get_azx_dev(s); sbits |= 1 << azx_dev->core.index; - nsync++; snd_pcm_trigger_done(s, substream); } spin_lock(&chip->reg_lock); /* first, set SYNC bits of corresponding streams */ - if (chip->driver_caps & AZX_DCAPS_OLD_SSYNC) - azx_writel(chip, OLD_SSYNC, - azx_readl(chip, OLD_SSYNC) | sbits); - else - azx_writel(chip, SSYNC, azx_readl(chip, SSYNC) | sbits); + snd_hdac_stream_sync_trigger(hstr, true, sbits, sync_reg); snd_pcm_group_for_each_entry(s, substream) { if (s->pcm->card != substream->pcm->card) @@ -510,65 +274,14 @@ static int azx_pcm_trigger(struct snd_pcm_substream *substream, int cmd) } } spin_unlock(&chip->reg_lock); - if (start) { - /* wait until all FIFOs get ready */ - for (timeout = 5000; timeout; timeout--) { - nwait = 0; - snd_pcm_group_for_each_entry(s, substream) { - if (s->pcm->card != substream->pcm->card) - continue; - azx_dev = get_azx_dev(s); - if (!(azx_sd_readb(chip, azx_dev, SD_STS) & - SD_STS_FIFO_READY)) - nwait++; - } - if (!nwait) - break; - cpu_relax(); - } - } else { - /* wait until all RUN bits are cleared */ - for (timeout = 5000; timeout; timeout--) { - nwait = 0; - snd_pcm_group_for_each_entry(s, substream) { - if (s->pcm->card != substream->pcm->card) - continue; - azx_dev = get_azx_dev(s); - if (azx_sd_readb(chip, azx_dev, SD_CTL) & - SD_CTL_DMA_START) - nwait++; - } - if (!nwait) - break; - cpu_relax(); - } - } + + snd_hdac_stream_sync(hstr, start, sbits); + spin_lock(&chip->reg_lock); /* reset SYNC bits */ - if (chip->driver_caps & AZX_DCAPS_OLD_SSYNC) - azx_writel(chip, OLD_SSYNC, - azx_readl(chip, OLD_SSYNC) & ~sbits); - else - azx_writel(chip, SSYNC, azx_readl(chip, SSYNC) & ~sbits); - if (start) { - azx_timecounter_init(substream, 0, 0); - snd_pcm_gettime(substream->runtime, &substream->runtime->trigger_tstamp); - substream->runtime->trigger_tstamp_latched = true; - - if (nsync > 1) { - cycle_t cycle_last; - - /* same start cycle for master and group */ - azx_dev = get_azx_dev(substream); - cycle_last = azx_dev->core.tc.cycle_last; - - snd_pcm_group_for_each_entry(s, substream) { - if (s->pcm->card != substream->pcm->card) - continue; - azx_timecounter_init(s, 1, cycle_last); - } - } - } + snd_hdac_stream_sync_trigger(hstr, false, sbits, sync_reg); + if (start) + snd_hdac_stream_timecounter_init(hstr, sbits); spin_unlock(&chip->reg_lock); return 0; } @@ -689,7 +402,6 @@ static int azx_pcm_open(struct snd_pcm_substream *substream) struct azx *chip = apcm->chip; struct azx_dev *azx_dev; struct snd_pcm_runtime *runtime = substream->runtime; - unsigned long flags; int err; int buff_step; @@ -700,6 +412,7 @@ static int azx_pcm_open(struct snd_pcm_substream *substream) err = -EBUSY; goto unlock; } + runtime->private_data = azx_dev; runtime->hw = azx_pcm_hw; runtime->hw.channels_min = hinfo->channels_min; runtime->hw.channels_max = hinfo->channels_max; @@ -761,12 +474,6 @@ static int azx_pcm_open(struct snd_pcm_substream *substream) runtime->hw.info &= ~SNDRV_PCM_INFO_HAS_LINK_ATIME; } - spin_lock_irqsave(&chip->reg_lock, flags); - azx_dev->core.substream = substream; - azx_dev->core.running = 0; - spin_unlock_irqrestore(&chip->reg_lock, flags); - - runtime->private_data = azx_dev; snd_pcm_set_sync(substream); mutex_unlock(&chip->open_mutex); return 0; @@ -1271,60 +978,31 @@ static int azx_load_dsp_prepare(struct hda_bus *bus, unsigned int format, unsigned int byte_size, struct snd_dma_buffer *bufp) { - u32 *bdl; struct azx *chip = bus->private_data; struct azx_dev *azx_dev; + struct hdac_stream *hstr; + bool saved = false; int err; azx_dev = azx_get_dsp_loader_dev(chip); - - dsp_lock(azx_dev); + hstr = azx_stream(azx_dev); spin_lock_irq(&chip->reg_lock); - if (azx_dev->core.running || azx_dev->core.locked) { - spin_unlock_irq(&chip->reg_lock); - err = -EBUSY; - goto unlock; + if (hstr->opened) { + chip->saved_azx_dev = *azx_dev; + saved = true; } - azx_dev->prepared = 0; - chip->saved_azx_dev = *azx_dev; - azx_dev->core.locked = 1; spin_unlock_irq(&chip->reg_lock); - err = chip->io_ops->dma_alloc_pages(&bus->core, SNDRV_DMA_TYPE_DEV_SG, - byte_size, bufp); - if (err < 0) - goto err_alloc; - - azx_dev->core.bufsize = byte_size; - azx_dev->core.period_bytes = byte_size; - azx_dev->core.format_val = format; - - snd_hdac_stream_reset(azx_stream(azx_dev)); - - /* reset BDL address */ - azx_sd_writel(chip, azx_dev, SD_BDLPL, 0); - azx_sd_writel(chip, azx_dev, SD_BDLPU, 0); - - azx_dev->core.frags = 0; - bdl = (u32 *)azx_dev->core.bdl.area; - err = setup_bdle(chip, bufp, azx_dev, &bdl, 0, byte_size, 0); - if (err < 0) - goto error; - - azx_setup_controller(chip, azx_dev); - dsp_unlock(azx_dev); - return azx_dev->core.stream_tag; + err = snd_hdac_dsp_prepare(hstr, format, byte_size, bufp); + if (err < 0) { + spin_lock_irq(&chip->reg_lock); + if (saved) + *azx_dev = chip->saved_azx_dev; + spin_unlock_irq(&chip->reg_lock); + return err; + } - error: - chip->io_ops->dma_free_pages(&bus->core, bufp); - err_alloc: - spin_lock_irq(&chip->reg_lock); - if (azx_dev->core.opened) - *azx_dev = chip->saved_azx_dev; - azx_dev->core.locked = 0; - spin_unlock_irq(&chip->reg_lock); - unlock: - dsp_unlock(azx_dev); + azx_dev->prepared = 0; return err; } @@ -1333,10 +1011,7 @@ static void azx_load_dsp_trigger(struct hda_bus *bus, bool start) struct azx *chip = bus->private_data; struct azx_dev *azx_dev = azx_get_dsp_loader_dev(chip); - if (start) - snd_hdac_stream_start(azx_stream(azx_dev), false); - else - snd_hdac_stream_stop(azx_stream(azx_dev)); + snd_hdac_dsp_trigger(azx_stream(azx_dev), start); } static void azx_load_dsp_cleanup(struct hda_bus *bus, @@ -1344,28 +1019,17 @@ static void azx_load_dsp_cleanup(struct hda_bus *bus, { struct azx *chip = bus->private_data; struct azx_dev *azx_dev = azx_get_dsp_loader_dev(chip); + struct hdac_stream *hstr = azx_stream(azx_dev); if (!dmab->area || !azx_dev->core.locked) return; - dsp_lock(azx_dev); - /* reset BDL address */ - azx_sd_writel(chip, azx_dev, SD_BDLPL, 0); - azx_sd_writel(chip, azx_dev, SD_BDLPU, 0); - azx_sd_writel(chip, azx_dev, SD_CTL, 0); - azx_dev->core.bufsize = 0; - azx_dev->core.period_bytes = 0; - azx_dev->core.format_val = 0; - - chip->io_ops->dma_free_pages(&bus->core, dmab); - dmab->area = NULL; - + snd_hdac_dsp_cleanup(hstr, dmab); spin_lock_irq(&chip->reg_lock); - if (azx_dev->core.opened) + if (hstr->opened) *azx_dev = chip->saved_azx_dev; - azx_dev->core.locked = 0; + hstr->locked = false; spin_unlock_irq(&chip->reg_lock); - dsp_unlock(azx_dev); } #endif /* CONFIG_SND_HDA_DSP_LOADER */ @@ -1742,6 +1406,12 @@ int azx_bus_create(struct azx *chip, const char *model) bus->pci = chip->pci; bus->modelname = model; bus->ops = bus_ops; + bus->core.snoop = azx_snoop(chip); + if (chip->get_position[0] != azx_get_pos_lpib || + chip->get_position[1] != azx_get_pos_lpib) + bus->core.use_posbuf = true; + if (chip->bdl_pos_adj) + bus->core.bdl_pos_adj = chip->bdl_pos_adj[chip->dev_index]; if (chip->driver_caps & AZX_DCAPS_RIRB_DELAY) { dev_dbg(chip->card->dev, "Enable delay in RIRB handling\n"); diff --git a/sound/pci/hda/hda_intel.c b/sound/pci/hda/hda_intel.c index c440ac1e34c8..a55d8504fe00 100644 --- a/sound/pci/hda/hda_intel.c +++ b/sound/pci/hda/hda_intel.c @@ -568,6 +568,9 @@ static int azx_position_ok(struct azx *chip, struct azx_dev *azx_dev) dev_info(chip->card->dev, "Invalid position buffer, using LPIB read method instead.\n"); chip->get_position[stream] = azx_get_pos_lpib; + if (chip->get_position[0] == azx_get_pos_lpib && + chip->get_position[1] == azx_get_pos_lpib) + azx_bus(chip)->use_posbuf = false; pos = azx_get_pos_lpib(chip, azx_dev); chip->get_delay[stream] = NULL; } else { @@ -1477,6 +1480,7 @@ static int azx_first_init(struct azx *chip) dev_err(card->dev, "ioremap error\n"); return -ENXIO; } + azx_bus(chip)->remap_addr = chip->remap_addr; /* FIXME */ if (chip->msi) { if (chip->driver_caps & AZX_DCAPS_NO_MSI64) { diff --git a/sound/pci/hda/hda_tegra.c b/sound/pci/hda/hda_tegra.c index e25e0df7f067..c6fc96afbdc1 100644 --- a/sound/pci/hda/hda_tegra.c +++ b/sound/pci/hda/hda_tegra.c @@ -325,6 +325,7 @@ static int hda_tegra_init_chip(struct azx *chip, struct platform_device *pdev) return PTR_ERR(hda->regs); chip->remap_addr = hda->regs + HDA_BAR0; + azx_bus(chip)->remap_addr = chip->remap_addr; /* FIXME */ chip->addr = res->start + HDA_BAR0; err = hda_tegra_enable_clocks(hda); -- 2.20.1