From: Pierre-Louis Bossart pierre-louis.bossart@linux.intel.com
When INTC is set, LCTL exposes INTEN and INTSTS fields.
Signed-off-by: Pierre-Louis Bossart pierre-louis.bossart@linux.intel.com Reviewed-by: Rander Wang rander.wang@intel.com Reviewed-by: Péter Ujfalusi peter.ujfalusi@linux.intel.com Reviewed-by: Ranjani Sridharan ranjani.sridharan@linux.intel.com Signed-off-by: Peter Ujfalusi peter.ujfalusi@linux.intel.com --- include/sound/hda-mlink.h | 8 +++++ sound/soc/sof/intel/hda-mlink.c | 62 +++++++++++++++++++++++++++++++++ 2 files changed, 70 insertions(+)
diff --git a/include/sound/hda-mlink.h b/include/sound/hda-mlink.h index d7f65cb6e175..872652209a47 100644 --- a/include/sound/hda-mlink.h +++ b/include/sound/hda-mlink.h @@ -14,6 +14,8 @@ int hda_bus_ml_init(struct hdac_bus *bus); void hda_bus_ml_free(struct hdac_bus *bus);
int hdac_bus_eml_get_count(struct hdac_bus *bus, bool alt, int elid); +void hdac_bus_eml_enable_interrupt(struct hdac_bus *bus, bool alt, int elid, bool enable); +bool hdac_bus_eml_check_interrupt(struct hdac_bus *bus, bool alt, int elid);
int hdac_bus_eml_power_up(struct hdac_bus *bus, bool alt, int elid, int sublink); int hdac_bus_eml_power_up_unlocked(struct hdac_bus *bus, bool alt, int elid, int sublink); @@ -39,6 +41,12 @@ static inline void hda_bus_ml_free(struct hdac_bus *bus) { } static inline int hdac_bus_eml_get_count(struct hdac_bus *bus, bool alt, int elid) { return 0; }
+static inline void +hdac_bus_eml_enable_interrupt(struct hdac_bus *bus, bool alt, int elid, bool enable) { } + +static inline bool +hdac_bus_eml_check_interrupt(struct hdac_bus *bus, bool alt, int elid) { return false; } + static inline int hdac_bus_eml_power_up(struct hdac_bus *bus, bool alt, int elid, int sublink) { diff --git a/sound/soc/sof/intel/hda-mlink.c b/sound/soc/sof/intel/hda-mlink.c index 02743c342f28..026642659037 100644 --- a/sound/soc/sof/intel/hda-mlink.c +++ b/sound/soc/sof/intel/hda-mlink.c @@ -232,6 +232,28 @@ static int hdaml_link_shutdown(u32 __iomem *lctl, int sublink) return check_sublink_power(lctl, sublink, false); }
+static void hdaml_link_enable_interrupt(u32 __iomem *lctl, bool enable) +{ + u32 val; + + val = readl(lctl); + if (enable) + val |= AZX_ML_LCTL_INTEN; + else + val &= ~AZX_ML_LCTL_INTEN; + + writel(val, lctl); +} + +static bool hdaml_link_check_interrupt(u32 __iomem *lctl) +{ + u32 val; + + val = readl(lctl); + + return val & AZX_ML_LCTL_INTSTS; +} + /* END HDAML section */
static int hda_ml_alloc_h2link(struct hdac_bus *bus, int index) @@ -340,6 +362,46 @@ int hdac_bus_eml_get_count(struct hdac_bus *bus, bool alt, int elid) } EXPORT_SYMBOL_NS(hdac_bus_eml_get_count, SND_SOC_SOF_HDA_MLINK);
+void hdac_bus_eml_enable_interrupt(struct hdac_bus *bus, bool alt, int elid, bool enable) +{ + struct hdac_ext2_link *h2link; + struct hdac_ext_link *hlink; + + h2link = find_ext2_link(bus, alt, elid); + if (!h2link) + return; + + if (!h2link->intc) + return; + + hlink = &h2link->hext_link; + + mutex_lock(&h2link->eml_lock); + + hdaml_link_enable_interrupt(hlink->ml_addr + AZX_REG_ML_LCTL, enable); + + mutex_unlock(&h2link->eml_lock); +} +EXPORT_SYMBOL_NS(hdac_bus_eml_enable_interrupt, SND_SOC_SOF_HDA_MLINK); + +bool hdac_bus_eml_check_interrupt(struct hdac_bus *bus, bool alt, int elid) +{ + struct hdac_ext2_link *h2link; + struct hdac_ext_link *hlink; + + h2link = find_ext2_link(bus, alt, elid); + if (!h2link) + return false; + + if (!h2link->intc) + return false; + + hlink = &h2link->hext_link; + + return hdaml_link_check_interrupt(hlink->ml_addr + AZX_REG_ML_LCTL); +} +EXPORT_SYMBOL_NS(hdac_bus_eml_check_interrupt, SND_SOC_SOF_HDA_MLINK); + static int hdac_bus_eml_power_up_base(struct hdac_bus *bus, bool alt, int elid, int sublink, bool eml_lock) {