diff options
Diffstat (limited to 'sound/hda/hdac_stream.c')
| -rw-r--r-- | sound/hda/hdac_stream.c | 212 |
1 files changed, 193 insertions, 19 deletions
diff --git a/sound/hda/hdac_stream.c b/sound/hda/hdac_stream.c index 1b8be39c38a9..547adbc22590 100644 --- a/sound/hda/hdac_stream.c +++ b/sound/hda/hdac_stream.c @@ -7,6 +7,7 @@ #include <linux/delay.h> #include <linux/export.h> #include <linux/clocksource.h> +#include <sound/compress_driver.h> #include <sound/core.h> #include <sound/pcm.h> #include <sound/hdaudio.h> @@ -103,6 +104,20 @@ void snd_hdac_stream_init(struct hdac_bus *bus, struct hdac_stream *azx_dev, azx_dev->stream_tag = tag; snd_hdac_dsp_lock_init(azx_dev); list_add_tail(&azx_dev->list, &bus->stream_list); + + if (bus->spbcap) { + azx_dev->spib_addr = bus->spbcap + AZX_SPB_BASE + + AZX_SPB_INTERVAL * idx + + AZX_SPB_SPIB; + + azx_dev->fifo_addr = bus->spbcap + AZX_SPB_BASE + + AZX_SPB_INTERVAL * idx + + AZX_SPB_MAXFIFO; + } + + if (bus->drsmcap) + azx_dev->dpibr_addr = bus->drsmcap + AZX_DRSM_BASE + + AZX_DRSM_INTERVAL * idx; } EXPORT_SYMBOL_GPL(snd_hdac_stream_init); @@ -473,11 +488,23 @@ int snd_hdac_stream_setup_periods(struct hdac_stream *azx_dev) { struct hdac_bus *bus = azx_dev->bus; struct snd_pcm_substream *substream = azx_dev->substream; - struct snd_pcm_runtime *runtime = substream->runtime; + struct snd_compr_stream *cstream = azx_dev->cstream; + struct snd_pcm_runtime *runtime = NULL; + struct snd_dma_buffer *dmab; __le32 *bdl; int i, ofs, periods, period_bytes; int pos_adj, pos_align; + if (substream) { + runtime = substream->runtime; + dmab = snd_pcm_get_dma_buf(substream); + } else if (cstream) { + dmab = snd_pcm_get_dma_buf(cstream); + } else { + WARN(1, "No substream or cstream assigned\n"); + return -EINVAL; + } + /* reset BDL address */ snd_hdac_stream_writel(azx_dev, SD_BDLPL, 0); snd_hdac_stream_writel(azx_dev, SD_BDLPU, 0); @@ -491,7 +518,7 @@ int snd_hdac_stream_setup_periods(struct hdac_stream *azx_dev) azx_dev->frags = 0; pos_adj = bus->bdl_pos_adj; - if (!azx_dev->no_period_wakeup && pos_adj > 0) { + if (runtime && !azx_dev->no_period_wakeup && pos_adj > 0) { pos_align = pos_adj; pos_adj = DIV_ROUND_UP(pos_adj * runtime->rate, 48000); if (!pos_adj) @@ -504,8 +531,7 @@ int snd_hdac_stream_setup_periods(struct hdac_stream *azx_dev) pos_adj); pos_adj = 0; } else { - ofs = setup_bdle(bus, snd_pcm_get_dma_buf(substream), - azx_dev, + ofs = setup_bdle(bus, dmab, azx_dev, &bdl, ofs, pos_adj, true); if (ofs < 0) goto error; @@ -515,13 +541,11 @@ int snd_hdac_stream_setup_periods(struct hdac_stream *azx_dev) for (i = 0; i < periods; i++) { if (i == periods - 1 && pos_adj) - ofs = setup_bdle(bus, snd_pcm_get_dma_buf(substream), - azx_dev, &bdl, ofs, - period_bytes - pos_adj, 0); + ofs = setup_bdle(bus, dmab, azx_dev, + &bdl, ofs, period_bytes - pos_adj, 0); else - ofs = setup_bdle(bus, snd_pcm_get_dma_buf(substream), - azx_dev, &bdl, ofs, - period_bytes, + ofs = setup_bdle(bus, dmab, azx_dev, + &bdl, ofs, period_bytes, !azx_dev->no_period_wakeup); if (ofs < 0) goto error; @@ -546,26 +570,32 @@ EXPORT_SYMBOL_GPL(snd_hdac_stream_setup_periods); int snd_hdac_stream_set_params(struct hdac_stream *azx_dev, unsigned int format_val) { - - unsigned int bufsize, period_bytes; struct snd_pcm_substream *substream = azx_dev->substream; - struct snd_pcm_runtime *runtime; + struct snd_compr_stream *cstream = azx_dev->cstream; + unsigned int bufsize, period_bytes; + unsigned int no_period_wakeup; int err; - if (!substream) + if (substream) { + bufsize = snd_pcm_lib_buffer_bytes(substream); + period_bytes = snd_pcm_lib_period_bytes(substream); + no_period_wakeup = substream->runtime->no_period_wakeup; + } else if (cstream) { + bufsize = cstream->runtime->buffer_size; + period_bytes = cstream->runtime->fragment_size; + no_period_wakeup = 0; + } else { return -EINVAL; - runtime = substream->runtime; - bufsize = snd_pcm_lib_buffer_bytes(substream); - period_bytes = snd_pcm_lib_period_bytes(substream); + } if (bufsize != azx_dev->bufsize || period_bytes != azx_dev->period_bytes || format_val != azx_dev->format_val || - runtime->no_period_wakeup != azx_dev->no_period_wakeup) { + no_period_wakeup != azx_dev->no_period_wakeup) { azx_dev->bufsize = bufsize; azx_dev->period_bytes = period_bytes; azx_dev->format_val = format_val; - azx_dev->no_period_wakeup = runtime->no_period_wakeup; + azx_dev->no_period_wakeup = no_period_wakeup; err = snd_hdac_stream_setup_periods(azx_dev); if (err < 0) return err; @@ -718,6 +748,150 @@ void snd_hdac_stream_sync(struct hdac_stream *azx_dev, bool start, } EXPORT_SYMBOL_GPL(snd_hdac_stream_sync); +/** + * snd_hdac_stream_spbcap_enable - enable SPIB for a stream + * @bus: HD-audio core bus + * @enable: flag to enable/disable SPIB + * @index: stream index for which SPIB need to be enabled + */ +void snd_hdac_stream_spbcap_enable(struct hdac_bus *bus, + bool enable, int index) +{ + u32 mask = 0; + + if (!bus->spbcap) { + dev_err(bus->dev, "Address of SPB capability is NULL\n"); + return; + } + + mask |= (1 << index); + + if (enable) + snd_hdac_updatel(bus->spbcap, AZX_REG_SPB_SPBFCCTL, mask, mask); + else + snd_hdac_updatel(bus->spbcap, AZX_REG_SPB_SPBFCCTL, mask, 0); +} +EXPORT_SYMBOL_GPL(snd_hdac_stream_spbcap_enable); + +/** + * snd_hdac_stream_set_spib - sets the spib value of a stream + * @bus: HD-audio core bus + * @azx_dev: hdac_stream + * @value: spib value to set + */ +int snd_hdac_stream_set_spib(struct hdac_bus *bus, + struct hdac_stream *azx_dev, u32 value) +{ + if (!bus->spbcap) { + dev_err(bus->dev, "Address of SPB capability is NULL\n"); + return -EINVAL; + } + + writel(value, azx_dev->spib_addr); + + return 0; +} +EXPORT_SYMBOL_GPL(snd_hdac_stream_set_spib); + +/** + * snd_hdac_stream_get_spbmaxfifo - gets the spib value of a stream + * @bus: HD-audio core bus + * @azx_dev: hdac_stream + * + * Return maxfifo for the stream + */ +int snd_hdac_stream_get_spbmaxfifo(struct hdac_bus *bus, + struct hdac_stream *azx_dev) +{ + if (!bus->spbcap) { + dev_err(bus->dev, "Address of SPB capability is NULL\n"); + return -EINVAL; + } + + return readl(azx_dev->fifo_addr); +} +EXPORT_SYMBOL_GPL(snd_hdac_stream_get_spbmaxfifo); + +/** + * snd_hdac_stream_drsm_enable - enable DMA resume for a stream + * @bus: HD-audio core bus + * @enable: flag to enable/disable DRSM + * @index: stream index for which DRSM need to be enabled + */ +void snd_hdac_stream_drsm_enable(struct hdac_bus *bus, + bool enable, int index) +{ + u32 mask = 0; + + if (!bus->drsmcap) { + dev_err(bus->dev, "Address of DRSM capability is NULL\n"); + return; + } + + mask |= (1 << index); + + if (enable) + snd_hdac_updatel(bus->drsmcap, AZX_REG_DRSM_CTL, mask, mask); + else + snd_hdac_updatel(bus->drsmcap, AZX_REG_DRSM_CTL, mask, 0); +} +EXPORT_SYMBOL_GPL(snd_hdac_stream_drsm_enable); + +/* + * snd_hdac_stream_wait_drsm - wait for HW to clear RSM for a stream + * @azx_dev: HD-audio core stream to await RSM for + * + * Returns 0 on success and -ETIMEDOUT upon a timeout. + */ +int snd_hdac_stream_wait_drsm(struct hdac_stream *azx_dev) +{ + struct hdac_bus *bus = azx_dev->bus; + u32 mask, reg; + int ret; + + mask = 1 << azx_dev->index; + + ret = read_poll_timeout(snd_hdac_reg_readl, reg, !(reg & mask), 250, 2000, false, bus, + bus->drsmcap + AZX_REG_DRSM_CTL); + if (ret) + dev_dbg(bus->dev, "polling RSM 0x%08x failed: %d\n", mask, ret); + return ret; +} +EXPORT_SYMBOL_GPL(snd_hdac_stream_wait_drsm); + +/** + * snd_hdac_stream_set_dpibr - sets the dpibr value of a stream + * @bus: HD-audio core bus + * @azx_dev: hdac_stream + * @value: dpib value to set + */ +int snd_hdac_stream_set_dpibr(struct hdac_bus *bus, + struct hdac_stream *azx_dev, u32 value) +{ + if (!bus->drsmcap) { + dev_err(bus->dev, "Address of DRSM capability is NULL\n"); + return -EINVAL; + } + + writel(value, azx_dev->dpibr_addr); + + return 0; +} +EXPORT_SYMBOL_GPL(snd_hdac_stream_set_dpibr); + +/** + * snd_hdac_stream_set_lpib - sets the lpib value of a stream + * @azx_dev: hdac_stream + * @value: lpib value to set + */ +int snd_hdac_stream_set_lpib(struct hdac_stream *azx_dev, u32 value) +{ + snd_hdac_stream_writel(azx_dev, SD_LPIB, value); + + return 0; +} +EXPORT_SYMBOL_GPL(snd_hdac_stream_set_lpib); + #ifdef CONFIG_SND_HDA_DSP_LOADER /** * snd_hdac_dsp_prepare - prepare for DSP loading |