diff options
| -rw-r--r-- | include/sound/hda_register.h | 4 | ||||
| -rw-r--r-- | include/sound/hdaudio_ext.h | 10 | ||||
| -rw-r--r-- | sound/hda/ext/hdac_ext_stream.c | 54 |
3 files changed, 68 insertions, 0 deletions
diff --git a/include/sound/hda_register.h b/include/sound/hda_register.h index ae995e523ff8..2ae8812d7b1a 100644 --- a/include/sound/hda_register.h +++ b/include/sound/hda_register.h @@ -160,6 +160,10 @@ enum { SDI0, SDI1, SDI2, SDI3, SDO0, SDO1, SDO2, SDO3 }; #define AZX_SPB_BASE 0x08 /* Interval used to calculate the iterating register offset */ #define AZX_SPB_INTERVAL 0x08 +/* SPIB base */ +#define AZX_SPB_SPIB 0x00 +/* SPIB MAXFIFO base*/ +#define AZX_SPB_MAXFIFO 0x04 /* registers of Global Time Synchronization Capability Structure */ #define AZX_GTS_CAP_ID 0x1 diff --git a/include/sound/hdaudio_ext.h b/include/sound/hdaudio_ext.h index 160160d9bffc..9385c99a6504 100644 --- a/include/sound/hdaudio_ext.h +++ b/include/sound/hdaudio_ext.h @@ -63,6 +63,8 @@ enum hdac_ext_stream_type { * @hstream: hdac_stream * @pphc_addr: processing pipe host stream pointer * @pplc_addr: processing pipe link stream pointer + * @spib_addr: software position in buffers stream pointer + * @fifo_addr: software position Max fifos stream pointer * @decoupled: stream host and link is decoupled * @link_locked: link is locked * @link_prepared: link is prepared @@ -74,6 +76,9 @@ struct hdac_ext_stream { void __iomem *pphc_addr; void __iomem *pplc_addr; + void __iomem *spib_addr; + void __iomem *fifo_addr; + bool decoupled:1; bool link_locked:1; bool link_prepared; @@ -100,6 +105,11 @@ void snd_hdac_ext_stream_decouple(struct hdac_ext_bus *bus, struct hdac_ext_stream *azx_dev, bool decouple); void snd_hdac_ext_stop_streams(struct hdac_ext_bus *sbus); +int snd_hdac_ext_stream_set_spib(struct hdac_ext_bus *ebus, + struct hdac_ext_stream *stream, u32 value); +int snd_hdac_ext_stream_set_spbmaxfifo(struct hdac_ext_bus *ebus, + struct hdac_ext_stream *stream); + void snd_hdac_ext_link_stream_start(struct hdac_ext_stream *hstream); void snd_hdac_ext_link_stream_clear(struct hdac_ext_stream *hstream); void snd_hdac_ext_link_stream_reset(struct hdac_ext_stream *hstream); diff --git a/sound/hda/ext/hdac_ext_stream.c b/sound/hda/ext/hdac_ext_stream.c index b649625f43a4..a4f6bbe5da8f 100644 --- a/sound/hda/ext/hdac_ext_stream.c +++ b/sound/hda/ext/hdac_ext_stream.c @@ -49,6 +49,16 @@ void snd_hdac_ext_stream_init(struct hdac_ext_bus *ebus, AZX_PPLC_INTERVAL * idx; } + if (ebus->spbcap) { + stream->spib_addr = ebus->spbcap + AZX_SPB_BASE + + AZX_SPB_INTERVAL * idx + + AZX_SPB_SPIB; + + stream->fifo_addr = ebus->spbcap + AZX_SPB_BASE + + AZX_SPB_INTERVAL * idx + + AZX_SPB_MAXFIFO; + } + stream->decoupled = false; snd_hdac_stream_init(bus, &stream->hstream, idx, direction, tag); } @@ -435,6 +445,50 @@ void snd_hdac_ext_stream_spbcap_enable(struct hdac_ext_bus *ebus, EXPORT_SYMBOL_GPL(snd_hdac_ext_stream_spbcap_enable); /** + * snd_hdac_ext_stream_set_spib - sets the spib value of a stream + * @ebus: HD-audio ext core bus + * @stream: hdac_ext_stream + * @value: spib value to set + */ +int snd_hdac_ext_stream_set_spib(struct hdac_ext_bus *ebus, + struct hdac_ext_stream *stream, u32 value) +{ + struct hdac_bus *bus = &ebus->bus; + + if (!ebus->spbcap) { + dev_err(bus->dev, "Address of SPB capability is NULL"); + return -EINVAL; + } + + writel(value, stream->spib_addr); + + return 0; +} +EXPORT_SYMBOL_GPL(snd_hdac_ext_stream_set_spib); + +/** + * snd_hdac_ext_stream_set_spbmaxfifo - sets the spib value of a stream + * @ebus: HD-audio ext core bus + * @stream: hdac_ext_stream + * + * Return maxfifo for the stream + */ +int snd_hdac_ext_stream_set_spbmaxfifo(struct hdac_ext_bus *ebus, + struct hdac_ext_stream *stream) +{ + struct hdac_bus *bus = &ebus->bus; + + if (!ebus->spbcap) { + dev_err(bus->dev, "Address of SPB capability is NULL"); + return -EINVAL; + } + + return readl(stream->fifo_addr); +} +EXPORT_SYMBOL_GPL(snd_hdac_ext_stream_set_spbmaxfifo); + + +/** * snd_hdac_ext_stop_streams - stop all stream if running * @ebus: HD-audio ext core bus */ |