diff options
Diffstat (limited to 'sound/hda/ext/hdac_ext_controller.c')
-rw-r--r-- | sound/hda/ext/hdac_ext_controller.c | 116 |
1 files changed, 67 insertions, 49 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); |