diff options
Diffstat (limited to 'sound/hda/ext/hdac_ext_stream.c')
| -rw-r--r-- | sound/hda/ext/hdac_ext_stream.c | 228 |
1 files changed, 104 insertions, 124 deletions
diff --git a/sound/hda/ext/hdac_ext_stream.c b/sound/hda/ext/hdac_ext_stream.c index 37154ed43bd5..70f3ad71aaf0 100644 --- a/sound/hda/ext/hdac_ext_stream.c +++ b/sound/hda/ext/hdac_ext_stream.c @@ -18,7 +18,7 @@ /** * snd_hdac_ext_stream_init - initialize each stream (aka device) * @bus: HD-audio core bus - * @stream: HD-audio ext core stream object to initialize + * @hext_stream: HD-audio ext core stream object to initialize * @idx: stream index number * @direction: stream direction (SNDRV_PCM_STREAM_PLAYBACK or SNDRV_PCM_STREAM_CAPTURE) * @tag: the tag id to assign @@ -26,37 +26,36 @@ * initialize the stream, if ppcap is enabled then init those and then * invoke hdac stream initialization routine */ -void snd_hdac_ext_stream_init(struct hdac_bus *bus, - struct hdac_ext_stream *stream, - int idx, int direction, int tag) +static void snd_hdac_ext_stream_init(struct hdac_bus *bus, + struct hdac_ext_stream *hext_stream, + int idx, int direction, int tag) { if (bus->ppcap) { - stream->pphc_addr = bus->ppcap + AZX_PPHC_BASE + + hext_stream->pphc_addr = bus->ppcap + AZX_PPHC_BASE + AZX_PPHC_INTERVAL * idx; - stream->pplc_addr = bus->ppcap + AZX_PPLC_BASE + + hext_stream->pplc_addr = bus->ppcap + AZX_PPLC_BASE + AZX_PPLC_MULTI * bus->num_streams + AZX_PPLC_INTERVAL * idx; } if (bus->spbcap) { - stream->spib_addr = bus->spbcap + AZX_SPB_BASE + + hext_stream->spib_addr = bus->spbcap + AZX_SPB_BASE + AZX_SPB_INTERVAL * idx + AZX_SPB_SPIB; - stream->fifo_addr = bus->spbcap + AZX_SPB_BASE + + hext_stream->fifo_addr = bus->spbcap + AZX_SPB_BASE + AZX_SPB_INTERVAL * idx + AZX_SPB_MAXFIFO; } if (bus->drsmcap) - stream->dpibr_addr = bus->drsmcap + AZX_DRSM_BASE + + hext_stream->dpibr_addr = bus->drsmcap + AZX_DRSM_BASE + AZX_DRSM_INTERVAL * idx; - stream->decoupled = false; - snd_hdac_stream_init(bus, &stream->hstream, idx, direction, tag); + hext_stream->decoupled = false; + snd_hdac_stream_init(bus, &hext_stream->hstream, idx, direction, tag); } -EXPORT_SYMBOL_GPL(snd_hdac_ext_stream_init); /** * snd_hdac_ext_stream_init_all - create and initialize the stream objects @@ -67,18 +66,18 @@ EXPORT_SYMBOL_GPL(snd_hdac_ext_stream_init); * @dir: direction of streams */ int snd_hdac_ext_stream_init_all(struct hdac_bus *bus, int start_idx, - int num_stream, int dir) + int num_stream, int dir) { int stream_tag = 0; int i, tag, idx = start_idx; for (i = 0; i < num_stream; i++) { - struct hdac_ext_stream *stream = - kzalloc(sizeof(*stream), GFP_KERNEL); - if (!stream) + struct hdac_ext_stream *hext_stream = + kzalloc(sizeof(*hext_stream), GFP_KERNEL); + if (!hext_stream) return -ENOMEM; tag = ++stream_tag; - snd_hdac_ext_stream_init(bus, stream, idx, dir, tag); + snd_hdac_ext_stream_init(bus, hext_stream, idx, dir, tag); idx++; } @@ -88,29 +87,29 @@ int snd_hdac_ext_stream_init_all(struct hdac_bus *bus, int start_idx, EXPORT_SYMBOL_GPL(snd_hdac_ext_stream_init_all); /** - * snd_hdac_stream_free_all - free hdac extended stream objects + * snd_hdac_ext_stream_free_all - free hdac extended stream objects * * @bus: HD-audio core bus */ -void snd_hdac_stream_free_all(struct hdac_bus *bus) +void snd_hdac_ext_stream_free_all(struct hdac_bus *bus) { struct hdac_stream *s, *_s; - struct hdac_ext_stream *stream; + struct hdac_ext_stream *hext_stream; list_for_each_entry_safe(s, _s, &bus->stream_list, list) { - stream = stream_to_hdac_ext_stream(s); - snd_hdac_ext_stream_decouple(bus, stream, false); + hext_stream = stream_to_hdac_ext_stream(s); + snd_hdac_ext_stream_decouple(bus, hext_stream, false); list_del(&s->list); - kfree(stream); + kfree(hext_stream); } } -EXPORT_SYMBOL_GPL(snd_hdac_stream_free_all); +EXPORT_SYMBOL_GPL(snd_hdac_ext_stream_free_all); void snd_hdac_ext_stream_decouple_locked(struct hdac_bus *bus, - struct hdac_ext_stream *stream, + struct hdac_ext_stream *hext_stream, bool decouple) { - struct hdac_stream *hstream = &stream->hstream; + struct hdac_stream *hstream = &hext_stream->hstream; u32 val; int mask = AZX_PPCTL_PROCEN(hstream->index); @@ -121,76 +120,76 @@ void snd_hdac_ext_stream_decouple_locked(struct hdac_bus *bus, else if (!decouple && val) snd_hdac_updatel(bus->ppcap, AZX_REG_PP_PPCTL, mask, 0); - stream->decoupled = decouple; + hext_stream->decoupled = decouple; } EXPORT_SYMBOL_GPL(snd_hdac_ext_stream_decouple_locked); /** * snd_hdac_ext_stream_decouple - decouple the hdac stream * @bus: HD-audio core bus - * @stream: HD-audio ext core stream object to initialize + * @hext_stream: HD-audio ext core stream object to initialize * @decouple: flag to decouple */ void snd_hdac_ext_stream_decouple(struct hdac_bus *bus, - struct hdac_ext_stream *stream, bool decouple) + struct hdac_ext_stream *hext_stream, bool decouple) { spin_lock_irq(&bus->reg_lock); - snd_hdac_ext_stream_decouple_locked(bus, stream, decouple); + snd_hdac_ext_stream_decouple_locked(bus, hext_stream, decouple); spin_unlock_irq(&bus->reg_lock); } EXPORT_SYMBOL_GPL(snd_hdac_ext_stream_decouple); /** * snd_hdac_ext_link_stream_start - start a stream - * @stream: HD-audio ext core stream to start + * @hext_stream: HD-audio ext core stream to start */ -void snd_hdac_ext_link_stream_start(struct hdac_ext_stream *stream) +void snd_hdac_ext_link_stream_start(struct hdac_ext_stream *hext_stream) { - snd_hdac_updatel(stream->pplc_addr, AZX_REG_PPLCCTL, + snd_hdac_updatel(hext_stream->pplc_addr, AZX_REG_PPLCCTL, AZX_PPLCCTL_RUN, AZX_PPLCCTL_RUN); } EXPORT_SYMBOL_GPL(snd_hdac_ext_link_stream_start); /** * snd_hdac_ext_link_stream_clear - stop a stream DMA - * @stream: HD-audio ext core stream to stop + * @hext_stream: HD-audio ext core stream to stop */ -void snd_hdac_ext_link_stream_clear(struct hdac_ext_stream *stream) +void snd_hdac_ext_link_stream_clear(struct hdac_ext_stream *hext_stream) { - snd_hdac_updatel(stream->pplc_addr, AZX_REG_PPLCCTL, AZX_PPLCCTL_RUN, 0); + snd_hdac_updatel(hext_stream->pplc_addr, AZX_REG_PPLCCTL, AZX_PPLCCTL_RUN, 0); } EXPORT_SYMBOL_GPL(snd_hdac_ext_link_stream_clear); /** * snd_hdac_ext_link_stream_reset - reset a stream - * @stream: HD-audio ext core stream to reset + * @hext_stream: HD-audio ext core stream to reset */ -void snd_hdac_ext_link_stream_reset(struct hdac_ext_stream *stream) +void snd_hdac_ext_link_stream_reset(struct hdac_ext_stream *hext_stream) { unsigned char val; int timeout; - snd_hdac_ext_link_stream_clear(stream); + snd_hdac_ext_link_stream_clear(hext_stream); - snd_hdac_updatel(stream->pplc_addr, AZX_REG_PPLCCTL, + snd_hdac_updatel(hext_stream->pplc_addr, AZX_REG_PPLCCTL, AZX_PPLCCTL_STRST, AZX_PPLCCTL_STRST); udelay(3); timeout = 50; do { - val = readl(stream->pplc_addr + AZX_REG_PPLCCTL) & + val = readl(hext_stream->pplc_addr + AZX_REG_PPLCCTL) & AZX_PPLCCTL_STRST; if (val) break; udelay(3); } while (--timeout); val &= ~AZX_PPLCCTL_STRST; - writel(val, stream->pplc_addr + AZX_REG_PPLCCTL); + writel(val, hext_stream->pplc_addr + AZX_REG_PPLCCTL); udelay(3); timeout = 50; /* waiting for hardware to report that the stream is out of reset */ do { - val = readl(stream->pplc_addr + AZX_REG_PPLCCTL) & AZX_PPLCCTL_STRST; + val = readl(hext_stream->pplc_addr + AZX_REG_PPLCCTL) & AZX_PPLCCTL_STRST; if (!val) break; udelay(3); @@ -201,24 +200,24 @@ EXPORT_SYMBOL_GPL(snd_hdac_ext_link_stream_reset); /** * snd_hdac_ext_link_stream_setup - set up the SD for streaming - * @stream: HD-audio ext core stream to set up + * @hext_stream: HD-audio ext core stream to set up * @fmt: stream format */ -int snd_hdac_ext_link_stream_setup(struct hdac_ext_stream *stream, int fmt) +int snd_hdac_ext_link_stream_setup(struct hdac_ext_stream *hext_stream, int fmt) { - struct hdac_stream *hstream = &stream->hstream; + struct hdac_stream *hstream = &hext_stream->hstream; unsigned int val; /* make sure the run bit is zero for SD */ - snd_hdac_ext_link_stream_clear(stream); + snd_hdac_ext_link_stream_clear(hext_stream); /* program the stream_tag */ - val = readl(stream->pplc_addr + AZX_REG_PPLCCTL); + val = readl(hext_stream->pplc_addr + AZX_REG_PPLCCTL); val = (val & ~AZX_PPLCCTL_STRM_MASK) | (hstream->stream_tag << AZX_PPLCCTL_STRM_SHIFT); - writel(val, stream->pplc_addr + AZX_REG_PPLCCTL); + writel(val, hext_stream->pplc_addr + AZX_REG_PPLCCTL); /* program the stream format */ - writew(fmt, stream->pplc_addr + AZX_REG_PPLCFMT); + writew(fmt, hext_stream->pplc_addr + AZX_REG_PPLCFMT); return 0; } @@ -230,7 +229,7 @@ EXPORT_SYMBOL_GPL(snd_hdac_ext_link_stream_setup); * @stream: stream id */ void snd_hdac_ext_link_set_stream_id(struct hdac_ext_link *link, - int stream) + int stream) { snd_hdac_updatew(link->ml_addr, AZX_REG_ML_LOSIDV, (1 << stream), 1 << stream); } @@ -250,10 +249,10 @@ EXPORT_SYMBOL_GPL(snd_hdac_ext_link_clear_stream_id); static struct hdac_ext_stream * hdac_ext_link_stream_assign(struct hdac_bus *bus, - struct snd_pcm_substream *substream) + struct snd_pcm_substream *substream) { struct hdac_ext_stream *res = NULL; - struct hdac_stream *stream = NULL; + struct hdac_stream *hstream = NULL; if (!bus->ppcap) { dev_err(bus->dev, "stream type not supported\n"); @@ -261,26 +260,22 @@ hdac_ext_link_stream_assign(struct hdac_bus *bus, } spin_lock_irq(&bus->reg_lock); - list_for_each_entry(stream, &bus->stream_list, list) { - struct hdac_ext_stream *hstream = container_of(stream, - struct hdac_ext_stream, - hstream); - if (stream->direction != substream->stream) + list_for_each_entry(hstream, &bus->stream_list, list) { + struct hdac_ext_stream *hext_stream = container_of(hstream, + struct hdac_ext_stream, + hstream); + if (hstream->direction != substream->stream) continue; - /* check if decoupled stream and not in use is available */ - if (hstream->decoupled && !hstream->link_locked) { - res = hstream; + /* check if link stream is available */ + if (!hext_stream->link_locked) { + res = hext_stream; break; } - if (!hstream->link_locked) { - snd_hdac_ext_stream_decouple_locked(bus, hstream, true); - res = hstream; - break; - } } if (res) { + snd_hdac_ext_stream_decouple_locked(bus, res, true); res->link_locked = 1; res->link_substream = substream; } @@ -290,10 +285,10 @@ hdac_ext_link_stream_assign(struct hdac_bus *bus, static struct hdac_ext_stream * hdac_ext_host_stream_assign(struct hdac_bus *bus, - struct snd_pcm_substream *substream) + struct snd_pcm_substream *substream) { struct hdac_ext_stream *res = NULL; - struct hdac_stream *stream = NULL; + struct hdac_stream *hstream = NULL; if (!bus->ppcap) { dev_err(bus->dev, "stream type not supported\n"); @@ -301,21 +296,20 @@ hdac_ext_host_stream_assign(struct hdac_bus *bus, } spin_lock_irq(&bus->reg_lock); - list_for_each_entry(stream, &bus->stream_list, list) { - struct hdac_ext_stream *hstream = container_of(stream, - struct hdac_ext_stream, - hstream); - if (stream->direction != substream->stream) + list_for_each_entry(hstream, &bus->stream_list, list) { + struct hdac_ext_stream *hext_stream = container_of(hstream, + struct hdac_ext_stream, + hstream); + if (hstream->direction != substream->stream) continue; - if (!stream->opened) { - if (!hstream->decoupled) - snd_hdac_ext_stream_decouple_locked(bus, hstream, true); - res = hstream; + if (!hstream->opened) { + res = hext_stream; break; } } if (res) { + snd_hdac_ext_stream_decouple_locked(bus, res, true); res->hstream.opened = 1; res->hstream.running = 0; res->hstream.substream = substream; @@ -346,16 +340,17 @@ struct hdac_ext_stream *snd_hdac_ext_stream_assign(struct hdac_bus *bus, struct snd_pcm_substream *substream, int type) { - struct hdac_ext_stream *hstream = NULL; - struct hdac_stream *stream = NULL; + struct hdac_ext_stream *hext_stream = NULL; + struct hdac_stream *hstream = NULL; switch (type) { case HDAC_EXT_STREAM_TYPE_COUPLED: - stream = snd_hdac_stream_assign(bus, substream); - if (stream) - hstream = container_of(stream, - struct hdac_ext_stream, hstream); - return hstream; + hstream = snd_hdac_stream_assign(bus, substream); + if (hstream) + hext_stream = container_of(hstream, + struct hdac_ext_stream, + hstream); + return hext_stream; case HDAC_EXT_STREAM_TYPE_HOST: return hdac_ext_host_stream_assign(bus, substream); @@ -371,34 +366,36 @@ EXPORT_SYMBOL_GPL(snd_hdac_ext_stream_assign); /** * snd_hdac_ext_stream_release - release the assigned stream - * @stream: HD-audio ext core stream to release + * @hext_stream: HD-audio ext core stream to release * @type: type of stream (coupled, host or link stream) * * Release the stream that has been assigned by snd_hdac_ext_stream_assign(). */ -void snd_hdac_ext_stream_release(struct hdac_ext_stream *stream, int type) +void snd_hdac_ext_stream_release(struct hdac_ext_stream *hext_stream, int type) { - struct hdac_bus *bus = stream->hstream.bus; + struct hdac_bus *bus = hext_stream->hstream.bus; switch (type) { case HDAC_EXT_STREAM_TYPE_COUPLED: - snd_hdac_stream_release(&stream->hstream); + snd_hdac_stream_release(&hext_stream->hstream); break; case HDAC_EXT_STREAM_TYPE_HOST: spin_lock_irq(&bus->reg_lock); - if (stream->decoupled && !stream->link_locked) - snd_hdac_ext_stream_decouple_locked(bus, stream, false); + /* couple link only if not in use */ + if (!hext_stream->link_locked) + snd_hdac_ext_stream_decouple_locked(bus, hext_stream, false); + snd_hdac_stream_release_locked(&hext_stream->hstream); spin_unlock_irq(&bus->reg_lock); - snd_hdac_stream_release(&stream->hstream); break; case HDAC_EXT_STREAM_TYPE_LINK: spin_lock_irq(&bus->reg_lock); - if (stream->decoupled && !stream->hstream.opened) - snd_hdac_ext_stream_decouple_locked(bus, stream, false); - stream->link_locked = 0; - stream->link_substream = NULL; + /* couple host only if not in use */ + if (!hext_stream->hstream.opened) + snd_hdac_ext_stream_decouple_locked(bus, hext_stream, false); + hext_stream->link_locked = 0; + hext_stream->link_substream = NULL; spin_unlock_irq(&bus->reg_lock); break; @@ -437,11 +434,11 @@ EXPORT_SYMBOL_GPL(snd_hdac_ext_stream_spbcap_enable); /** * snd_hdac_ext_stream_set_spib - sets the spib value of a stream * @bus: HD-audio core bus - * @stream: hdac_ext_stream + * @hext_stream: hdac_ext_stream * @value: spib value to set */ int snd_hdac_ext_stream_set_spib(struct hdac_bus *bus, - struct hdac_ext_stream *stream, u32 value) + struct hdac_ext_stream *hext_stream, u32 value) { if (!bus->spbcap) { @@ -449,7 +446,7 @@ int snd_hdac_ext_stream_set_spib(struct hdac_bus *bus, return -EINVAL; } - writel(value, stream->spib_addr); + writel(value, hext_stream->spib_addr); return 0; } @@ -458,12 +455,12 @@ EXPORT_SYMBOL_GPL(snd_hdac_ext_stream_set_spib); /** * snd_hdac_ext_stream_get_spbmaxfifo - gets the spib value of a stream * @bus: HD-audio core bus - * @stream: hdac_ext_stream + * @hext_stream: hdac_ext_stream * * Return maxfifo for the stream */ int snd_hdac_ext_stream_get_spbmaxfifo(struct hdac_bus *bus, - struct hdac_ext_stream *stream) + struct hdac_ext_stream *hext_stream) { if (!bus->spbcap) { @@ -471,27 +468,10 @@ int snd_hdac_ext_stream_get_spbmaxfifo(struct hdac_bus *bus, return -EINVAL; } - return readl(stream->fifo_addr); + return readl(hext_stream->fifo_addr); } EXPORT_SYMBOL_GPL(snd_hdac_ext_stream_get_spbmaxfifo); - -/** - * snd_hdac_ext_stop_streams - stop all stream if running - * @bus: HD-audio core bus - */ -void snd_hdac_ext_stop_streams(struct hdac_bus *bus) -{ - struct hdac_stream *stream; - - if (bus->chip_init) { - list_for_each_entry(stream, &bus->stream_list, list) - snd_hdac_stream_stop(stream); - snd_hdac_bus_stop_chip(bus); - } -} -EXPORT_SYMBOL_GPL(snd_hdac_ext_stop_streams); - /** * snd_hdac_ext_stream_drsm_enable - enable DMA resume for a stream * @bus: HD-audio core bus @@ -520,11 +500,11 @@ EXPORT_SYMBOL_GPL(snd_hdac_ext_stream_drsm_enable); /** * snd_hdac_ext_stream_set_dpibr - sets the dpibr value of a stream * @bus: HD-audio core bus - * @stream: hdac_ext_stream + * @hext_stream: hdac_ext_stream * @value: dpib value to set */ int snd_hdac_ext_stream_set_dpibr(struct hdac_bus *bus, - struct hdac_ext_stream *stream, u32 value) + struct hdac_ext_stream *hext_stream, u32 value) { if (!bus->drsmcap) { @@ -532,7 +512,7 @@ int snd_hdac_ext_stream_set_dpibr(struct hdac_bus *bus, return -EINVAL; } - writel(value, stream->dpibr_addr); + writel(value, hext_stream->dpibr_addr); return 0; } @@ -540,12 +520,12 @@ EXPORT_SYMBOL_GPL(snd_hdac_ext_stream_set_dpibr); /** * snd_hdac_ext_stream_set_lpib - sets the lpib value of a stream - * @stream: hdac_ext_stream + * @hext_stream: hdac_ext_stream * @value: lpib value to set */ -int snd_hdac_ext_stream_set_lpib(struct hdac_ext_stream *stream, u32 value) +int snd_hdac_ext_stream_set_lpib(struct hdac_ext_stream *hext_stream, u32 value) { - snd_hdac_stream_writel(&stream->hstream, SD_LPIB, value); + snd_hdac_stream_writel(&hext_stream->hstream, SD_LPIB, value); return 0; } |