diff options
Diffstat (limited to 'sound/hda')
| -rw-r--r-- | sound/hda/ext/hdac_ext_controller.c | 116 | ||||
| -rw-r--r-- | sound/hda/ext/hdac_ext_stream.c | 203 | ||||
| -rw-r--r-- | sound/hda/hdac_stream.c | 158 |
3 files changed, 245 insertions, 232 deletions
diff --git a/sound/hda/ext/hdac_ext_controller.c b/sound/hda/ext/hdac_ext_controller.c index 80876b9a87f4..6199bb60ccf0 100644 --- a/sound/hda/ext/hdac_ext_controller.c +++ b/sound/hda/ext/hdac_ext_controller.c @@ -108,50 +108,48 @@ int snd_hdac_ext_bus_get_ml_capabilities(struct hdac_bus *bus) EXPORT_SYMBOL_GPL(snd_hdac_ext_bus_get_ml_capabilities); /** - * snd_hdac_link_free_all- free hdac extended link objects + * snd_hdac_ext_link_free_all- free hdac extended link objects * * @bus: the pointer to HDAC bus object */ -void snd_hdac_link_free_all(struct hdac_bus *bus) +void snd_hdac_ext_link_free_all(struct hdac_bus *bus) { - struct hdac_ext_link *l; + struct hdac_ext_link *hlink; while (!list_empty(&bus->hlink_list)) { - l = list_first_entry(&bus->hlink_list, struct hdac_ext_link, list); - list_del(&l->list); - kfree(l); + hlink = list_first_entry(&bus->hlink_list, struct hdac_ext_link, list); + list_del(&hlink->list); + kfree(hlink); } } -EXPORT_SYMBOL_GPL(snd_hdac_link_free_all); +EXPORT_SYMBOL_GPL(snd_hdac_ext_link_free_all); /** - * snd_hdac_ext_bus_link_at - get link at specified address - * @bus: link's parent bus device + * snd_hdac_ext_bus_get_hlink_by_addr - get hlink at specified address + * @bus: hlink's parent bus device * @addr: codec device address * - * Returns link object or NULL if matching link is not found. + * Returns hlink object or NULL if matching hlink is not found. */ -struct hdac_ext_link *snd_hdac_ext_bus_link_at(struct hdac_bus *bus, int addr) +struct hdac_ext_link *snd_hdac_ext_bus_get_hlink_by_addr(struct hdac_bus *bus, int addr) { struct hdac_ext_link *hlink; - int i; list_for_each_entry(hlink, &bus->hlink_list, list) - for (i = 0; i < HDA_MAX_CODECS; i++) - if (hlink->lsdiid & (0x1 << addr)) - return hlink; + if (hlink->lsdiid & (0x1 << addr)) + return hlink; return NULL; } -EXPORT_SYMBOL_GPL(snd_hdac_ext_bus_link_at); +EXPORT_SYMBOL_GPL(snd_hdac_ext_bus_get_hlink_by_addr); /** - * snd_hdac_ext_bus_get_link - get link based on codec name + * snd_hdac_ext_bus_get_hlink_by_name - get hlink based on codec name * @bus: the pointer to HDAC bus object * @codec_name: codec name */ -struct hdac_ext_link *snd_hdac_ext_bus_get_link(struct hdac_bus *bus, - const char *codec_name) +struct hdac_ext_link *snd_hdac_ext_bus_get_hlink_by_name(struct hdac_bus *bus, + const char *codec_name) { int bus_idx, addr; @@ -162,11 +160,11 @@ struct hdac_ext_link *snd_hdac_ext_bus_get_link(struct hdac_bus *bus, if (addr < 0 || addr > 31) return NULL; - return snd_hdac_ext_bus_link_at(bus, addr); + return snd_hdac_ext_bus_get_hlink_by_addr(bus, addr); } -EXPORT_SYMBOL_GPL(snd_hdac_ext_bus_get_link); +EXPORT_SYMBOL_GPL(snd_hdac_ext_bus_get_hlink_by_name); -static int check_hdac_link_power_active(struct hdac_ext_link *link, bool enable) +static int check_hdac_link_power_active(struct hdac_ext_link *hlink, bool enable) { int timeout; u32 val; @@ -176,7 +174,7 @@ static int check_hdac_link_power_active(struct hdac_ext_link *link, bool enable) timeout = 150; do { - val = readl(link->ml_addr + AZX_REG_ML_LCTL); + val = readl(hlink->ml_addr + AZX_REG_ML_LCTL); if (enable) { if (((val & mask) >> AZX_ML_LCTL_CPA_SHIFT)) return 0; @@ -192,26 +190,26 @@ static int check_hdac_link_power_active(struct hdac_ext_link *link, bool enable) /** * snd_hdac_ext_bus_link_power_up -power up hda link - * @link: HD-audio extended link + * @hlink: HD-audio extended link */ -int snd_hdac_ext_bus_link_power_up(struct hdac_ext_link *link) +int snd_hdac_ext_bus_link_power_up(struct hdac_ext_link *hlink) { - snd_hdac_updatel(link->ml_addr, AZX_REG_ML_LCTL, + snd_hdac_updatel(hlink->ml_addr, AZX_REG_ML_LCTL, AZX_ML_LCTL_SPA, AZX_ML_LCTL_SPA); - return check_hdac_link_power_active(link, true); + return check_hdac_link_power_active(hlink, true); } EXPORT_SYMBOL_GPL(snd_hdac_ext_bus_link_power_up); /** * snd_hdac_ext_bus_link_power_down -power down hda link - * @link: HD-audio extended link + * @hlink: HD-audio extended link */ -int snd_hdac_ext_bus_link_power_down(struct hdac_ext_link *link) +int snd_hdac_ext_bus_link_power_down(struct hdac_ext_link *hlink) { - snd_hdac_updatel(link->ml_addr, AZX_REG_ML_LCTL, AZX_ML_LCTL_SPA, 0); + snd_hdac_updatel(hlink->ml_addr, AZX_REG_ML_LCTL, AZX_ML_LCTL_SPA, 0); - return check_hdac_link_power_active(link, false); + return check_hdac_link_power_active(hlink, false); } EXPORT_SYMBOL_GPL(snd_hdac_ext_bus_link_power_down); @@ -225,9 +223,7 @@ int snd_hdac_ext_bus_link_power_up_all(struct hdac_bus *bus) int ret; list_for_each_entry(hlink, &bus->hlink_list, list) { - snd_hdac_updatel(hlink->ml_addr, AZX_REG_ML_LCTL, - AZX_ML_LCTL_SPA, AZX_ML_LCTL_SPA); - ret = check_hdac_link_power_active(hlink, true); + ret = snd_hdac_ext_bus_link_power_up(hlink); if (ret < 0) return ret; } @@ -246,9 +242,7 @@ int snd_hdac_ext_bus_link_power_down_all(struct hdac_bus *bus) int ret; list_for_each_entry(hlink, &bus->hlink_list, list) { - snd_hdac_updatel(hlink->ml_addr, AZX_REG_ML_LCTL, - AZX_ML_LCTL_SPA, 0); - ret = check_hdac_link_power_active(hlink, false); + ret = snd_hdac_ext_bus_link_power_down(hlink); if (ret < 0) return ret; } @@ -257,8 +251,32 @@ int snd_hdac_ext_bus_link_power_down_all(struct hdac_bus *bus) } EXPORT_SYMBOL_GPL(snd_hdac_ext_bus_link_power_down_all); +/** + * snd_hdac_ext_bus_link_set_stream_id - maps stream id to link output + * @link: HD-audio ext link to set up + * @stream: stream id + */ +void snd_hdac_ext_bus_link_set_stream_id(struct hdac_ext_link *link, + int stream) +{ + snd_hdac_updatew(link->ml_addr, AZX_REG_ML_LOSIDV, (1 << stream), 1 << stream); +} +EXPORT_SYMBOL_GPL(snd_hdac_ext_bus_link_set_stream_id); + +/** + * snd_hdac_ext_bus_link_clear_stream_id - maps stream id to link output + * @link: HD-audio ext link to set up + * @stream: stream id + */ +void snd_hdac_ext_bus_link_clear_stream_id(struct hdac_ext_link *link, + int stream) +{ + snd_hdac_updatew(link->ml_addr, AZX_REG_ML_LOSIDV, (1 << stream), 0); +} +EXPORT_SYMBOL_GPL(snd_hdac_ext_bus_link_clear_stream_id); + int snd_hdac_ext_bus_link_get(struct hdac_bus *bus, - struct hdac_ext_link *link) + struct hdac_ext_link *hlink) { unsigned long codec_mask; int ret = 0; @@ -269,18 +287,18 @@ int snd_hdac_ext_bus_link_get(struct hdac_bus *bus, * if we move from 0 to 1, count will be 1 so power up this link * as well, also check the dma status and trigger that */ - if (++link->ref_count == 1) { + if (++hlink->ref_count == 1) { if (!bus->cmd_dma_state) { snd_hdac_bus_init_cmd_io(bus); bus->cmd_dma_state = true; } - ret = snd_hdac_ext_bus_link_power_up(link); + ret = snd_hdac_ext_bus_link_power_up(hlink); /* * clear the register to invalidate all the output streams */ - snd_hdac_updatew(link->ml_addr, AZX_REG_ML_LOSIDV, + snd_hdac_updatew(hlink->ml_addr, AZX_REG_ML_LOSIDV, AZX_ML_LOSIDV_STREAM_MASK, 0); /* * wait for 521usec for codec to report status @@ -300,10 +318,10 @@ int snd_hdac_ext_bus_link_get(struct hdac_bus *bus, EXPORT_SYMBOL_GPL(snd_hdac_ext_bus_link_get); int snd_hdac_ext_bus_link_put(struct hdac_bus *bus, - struct hdac_ext_link *link) + struct hdac_ext_link *hlink) { int ret = 0; - struct hdac_ext_link *hlink; + struct hdac_ext_link *hlink_tmp; bool link_up = false; mutex_lock(&bus->lock); @@ -312,15 +330,15 @@ int snd_hdac_ext_bus_link_put(struct hdac_bus *bus, * if we move from 1 to 0, count will be 0 * so power down this link as well */ - if (--link->ref_count == 0) { - ret = snd_hdac_ext_bus_link_power_down(link); + if (--hlink->ref_count == 0) { + ret = snd_hdac_ext_bus_link_power_down(hlink); /* * now check if all links are off, if so turn off * cmd dma as well */ - list_for_each_entry(hlink, &bus->hlink_list, list) { - if (hlink->ref_count) { + list_for_each_entry(hlink_tmp, &bus->hlink_list, list) { + if (hlink_tmp->ref_count) { link_up = true; break; } @@ -341,7 +359,7 @@ static void hdac_ext_codec_link_up(struct hdac_device *codec) { const char *devname = dev_name(&codec->dev); struct hdac_ext_link *hlink = - snd_hdac_ext_bus_get_link(codec->bus, devname); + snd_hdac_ext_bus_get_hlink_by_name(codec->bus, devname); if (hlink) snd_hdac_ext_bus_link_get(codec->bus, hlink); @@ -351,7 +369,7 @@ static void hdac_ext_codec_link_down(struct hdac_device *codec) { const char *devname = dev_name(&codec->dev); struct hdac_ext_link *hlink = - snd_hdac_ext_bus_get_link(codec->bus, devname); + snd_hdac_ext_bus_get_hlink_by_name(codec->bus, devname); if (hlink) snd_hdac_ext_bus_link_put(codec->bus, hlink); diff --git a/sound/hda/ext/hdac_ext_stream.c b/sound/hda/ext/hdac_ext_stream.c index 70f3ad71aaf0..2a071a09224d 100644 --- a/sound/hda/ext/hdac_ext_stream.c +++ b/sound/hda/ext/hdac_ext_stream.c @@ -39,20 +39,6 @@ static void snd_hdac_ext_stream_init(struct hdac_bus *bus, AZX_PPLC_INTERVAL * idx; } - if (bus->spbcap) { - hext_stream->spib_addr = bus->spbcap + AZX_SPB_BASE + - AZX_SPB_INTERVAL * idx + - AZX_SPB_SPIB; - - hext_stream->fifo_addr = bus->spbcap + AZX_SPB_BASE + - AZX_SPB_INTERVAL * idx + - AZX_SPB_MAXFIFO; - } - - if (bus->drsmcap) - hext_stream->dpibr_addr = bus->drsmcap + AZX_DRSM_BASE + - AZX_DRSM_INTERVAL * idx; - hext_stream->decoupled = false; snd_hdac_stream_init(bus, &hext_stream->hstream, idx, direction, tag); } @@ -140,36 +126,36 @@ void snd_hdac_ext_stream_decouple(struct hdac_bus *bus, EXPORT_SYMBOL_GPL(snd_hdac_ext_stream_decouple); /** - * snd_hdac_ext_link_stream_start - start a stream + * snd_hdac_ext_stream_start - start a stream * @hext_stream: HD-audio ext core stream to start */ -void snd_hdac_ext_link_stream_start(struct hdac_ext_stream *hext_stream) +void snd_hdac_ext_stream_start(struct hdac_ext_stream *hext_stream) { 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); +EXPORT_SYMBOL_GPL(snd_hdac_ext_stream_start); /** - * snd_hdac_ext_link_stream_clear - stop a stream DMA + * snd_hdac_ext_stream_clear - stop a stream DMA * @hext_stream: HD-audio ext core stream to stop */ -void snd_hdac_ext_link_stream_clear(struct hdac_ext_stream *hext_stream) +void snd_hdac_ext_stream_clear(struct hdac_ext_stream *hext_stream) { snd_hdac_updatel(hext_stream->pplc_addr, AZX_REG_PPLCCTL, AZX_PPLCCTL_RUN, 0); } -EXPORT_SYMBOL_GPL(snd_hdac_ext_link_stream_clear); +EXPORT_SYMBOL_GPL(snd_hdac_ext_stream_clear); /** - * snd_hdac_ext_link_stream_reset - reset a stream + * snd_hdac_ext_stream_reset - reset a stream * @hext_stream: HD-audio ext core stream to reset */ -void snd_hdac_ext_link_stream_reset(struct hdac_ext_stream *hext_stream) +void snd_hdac_ext_stream_reset(struct hdac_ext_stream *hext_stream) { unsigned char val; int timeout; - snd_hdac_ext_link_stream_clear(hext_stream); + snd_hdac_ext_stream_clear(hext_stream); snd_hdac_updatel(hext_stream->pplc_addr, AZX_REG_PPLCCTL, AZX_PPLCCTL_STRST, AZX_PPLCCTL_STRST); @@ -196,20 +182,20 @@ void snd_hdac_ext_link_stream_reset(struct hdac_ext_stream *hext_stream) } while (--timeout); } -EXPORT_SYMBOL_GPL(snd_hdac_ext_link_stream_reset); +EXPORT_SYMBOL_GPL(snd_hdac_ext_stream_reset); /** - * snd_hdac_ext_link_stream_setup - set up the SD for streaming + * snd_hdac_ext_stream_setup - set up the SD for streaming * @hext_stream: HD-audio ext core stream to set up * @fmt: stream format */ -int snd_hdac_ext_link_stream_setup(struct hdac_ext_stream *hext_stream, int fmt) +int snd_hdac_ext_stream_setup(struct hdac_ext_stream *hext_stream, int fmt) { 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(hext_stream); + snd_hdac_ext_stream_clear(hext_stream); /* program the stream_tag */ val = readl(hext_stream->pplc_addr + AZX_REG_PPLCCTL); val = (val & ~AZX_PPLCCTL_STRM_MASK) | @@ -221,35 +207,11 @@ int snd_hdac_ext_link_stream_setup(struct hdac_ext_stream *hext_stream, int fmt) return 0; } -EXPORT_SYMBOL_GPL(snd_hdac_ext_link_stream_setup); - -/** - * snd_hdac_ext_link_set_stream_id - maps stream id to link output - * @link: HD-audio ext link to set up - * @stream: stream id - */ -void snd_hdac_ext_link_set_stream_id(struct hdac_ext_link *link, - int stream) -{ - snd_hdac_updatew(link->ml_addr, AZX_REG_ML_LOSIDV, (1 << stream), 1 << stream); -} -EXPORT_SYMBOL_GPL(snd_hdac_ext_link_set_stream_id); - -/** - * snd_hdac_ext_link_clear_stream_id - maps stream id to link output - * @link: HD-audio ext link to set up - * @stream: stream id - */ -void snd_hdac_ext_link_clear_stream_id(struct hdac_ext_link *link, - int stream) -{ - snd_hdac_updatew(link->ml_addr, AZX_REG_ML_LOSIDV, (1 << stream), 0); -} -EXPORT_SYMBOL_GPL(snd_hdac_ext_link_clear_stream_id); +EXPORT_SYMBOL_GPL(snd_hdac_ext_stream_setup); static struct hdac_ext_stream * -hdac_ext_link_stream_assign(struct hdac_bus *bus, - struct snd_pcm_substream *substream) +hdac_ext_link_dma_stream_assign(struct hdac_bus *bus, + struct snd_pcm_substream *substream) { struct hdac_ext_stream *res = NULL; struct hdac_stream *hstream = NULL; @@ -284,8 +246,8 @@ 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) +hdac_ext_host_dma_stream_assign(struct hdac_bus *bus, + struct snd_pcm_substream *substream) { struct hdac_ext_stream *res = NULL; struct hdac_stream *hstream = NULL; @@ -353,10 +315,10 @@ struct hdac_ext_stream *snd_hdac_ext_stream_assign(struct hdac_bus *bus, return hext_stream; case HDAC_EXT_STREAM_TYPE_HOST: - return hdac_ext_host_stream_assign(bus, substream); + return hdac_ext_host_dma_stream_assign(bus, substream); case HDAC_EXT_STREAM_TYPE_LINK: - return hdac_ext_link_stream_assign(bus, substream); + return hdac_ext_link_dma_stream_assign(bus, substream); default: return NULL; @@ -405,128 +367,3 @@ void snd_hdac_ext_stream_release(struct hdac_ext_stream *hext_stream, int type) } EXPORT_SYMBOL_GPL(snd_hdac_ext_stream_release); - -/** - * snd_hdac_ext_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_ext_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_ext_stream_spbcap_enable); - -/** - * snd_hdac_ext_stream_set_spib - sets the spib value of a stream - * @bus: HD-audio core bus - * @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 *hext_stream, u32 value) -{ - - if (!bus->spbcap) { - dev_err(bus->dev, "Address of SPB capability is NULL\n"); - return -EINVAL; - } - - writel(value, hext_stream->spib_addr); - - return 0; -} -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 - * @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 *hext_stream) -{ - - if (!bus->spbcap) { - dev_err(bus->dev, "Address of SPB capability is NULL\n"); - return -EINVAL; - } - - return readl(hext_stream->fifo_addr); -} -EXPORT_SYMBOL_GPL(snd_hdac_ext_stream_get_spbmaxfifo); - -/** - * snd_hdac_ext_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_ext_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_ext_stream_drsm_enable); - -/** - * snd_hdac_ext_stream_set_dpibr - sets the dpibr value of a stream - * @bus: HD-audio core bus - * @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 *hext_stream, u32 value) -{ - - if (!bus->drsmcap) { - dev_err(bus->dev, "Address of DRSM capability is NULL\n"); - return -EINVAL; - } - - writel(value, hext_stream->dpibr_addr); - - return 0; -} -EXPORT_SYMBOL_GPL(snd_hdac_ext_stream_set_dpibr); - -/** - * snd_hdac_ext_stream_set_lpib - sets the lpib value of a stream - * @hext_stream: hdac_ext_stream - * @value: lpib value to set - */ -int snd_hdac_ext_stream_set_lpib(struct hdac_ext_stream *hext_stream, u32 value) -{ - snd_hdac_stream_writel(&hext_stream->hstream, SD_LPIB, value); - - return 0; -} -EXPORT_SYMBOL_GPL(snd_hdac_ext_stream_set_lpib); diff --git a/sound/hda/hdac_stream.c b/sound/hda/hdac_stream.c index 1b8be39c38a9..3b250ee7f6a7 100644 --- a/sound/hda/hdac_stream.c +++ b/sound/hda/hdac_stream.c @@ -103,6 +103,20 @@ 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); @@ -718,6 +732,150 @@ 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 |