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author | Vinod Koul <vinod.koul@intel.com> | 2015-08-21 10:17:41 (GMT) |
---|---|---|
committer | Takashi Iwai <tiwai@suse.de> | 2015-08-21 10:34:01 (GMT) |
commit | a512f5611646ab12f3f8fea2a3d2582adabe5157 (patch) | |
tree | 505302b62077570bfea0856da32ac4867bb67c93 | |
parent | ee2d51b3d4c940cd34dbc83eb10bb24205c56ebf (diff) | |
download | linux-a512f5611646ab12f3f8fea2a3d2582adabe5157.tar.xz |
ALSA: hdac: add hdac extended device
This adds based hdac extended device object which will be used by
ASoC HDAC codecs
Signed-off-by: Vinod Koul <vinod.koul@intel.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
-rw-r--r-- | include/sound/hdaudio_ext.h | 44 | ||||
-rw-r--r-- | sound/hda/ext/hdac_ext_bus.c | 13 |
2 files changed, 53 insertions, 4 deletions
diff --git a/include/sound/hdaudio_ext.h b/include/sound/hdaudio_ext.h index 148267b..0641d00e 100644 --- a/include/sound/hdaudio_ext.h +++ b/include/sound/hdaudio_ext.h @@ -130,4 +130,48 @@ void snd_hdac_ext_link_clear_stream_id(struct hdac_ext_link *link, writew(((readw(addr + reg) & ~(mask)) | (val)), \ addr + reg) + +struct hdac_ext_device; + +/* ops common to all codec drivers */ +struct hdac_ext_codec_ops { + int (*build_controls)(struct hdac_ext_device *dev); + int (*init)(struct hdac_ext_device *dev); + void (*free)(struct hdac_ext_device *dev); +}; + +struct hda_dai_map { + char *dai_name; + hda_nid_t nid; + u32 maxbps; +}; + +#define HDA_MAX_NIDS 16 + +/** + * struct hdac_ext_device - HDAC Ext device + * + * @hdac: hdac core device + * @nid_list - the dai map which matches the dai-name with the nid + * @map_cur_idx - the idx in use in dai_map + * @ops - the hda codec ops common to all codec drivers + * @pvt_data - private data, for asoc contains asoc codec object + */ +struct hdac_ext_device { + struct hdac_device hdac; + struct hdac_ext_bus *ebus; + + /* soc-dai to nid map */ + struct hda_dai_map nid_list[HDA_MAX_NIDS]; + unsigned int map_cur_idx; + + /* codec ops */ + struct hdac_ext_codec_ops ops; + + void *private_data; +}; + +#define to_ehdac_device(dev) (container_of((dev), \ + struct hdac_ext_device, hdac)) + #endif /* __SOUND_HDAUDIO_EXT_H */ diff --git a/sound/hda/ext/hdac_ext_bus.c b/sound/hda/ext/hdac_ext_bus.c index cf69202..94fb987 100644 --- a/sound/hda/ext/hdac_ext_bus.c +++ b/sound/hda/ext/hdac_ext_bus.c @@ -125,7 +125,7 @@ static void default_release(struct device *dev) } /** - * snd_hdac_ext_device_init - initialize the HDA extended codec base device + * snd_hdac_ext_bus_device_init - initialize the HDA extended codec base device * @ebus: hdac extended bus to attach to * @addr: codec address * @@ -133,14 +133,16 @@ static void default_release(struct device *dev) */ int snd_hdac_ext_bus_device_init(struct hdac_ext_bus *ebus, int addr) { + struct hdac_ext_device *edev; struct hdac_device *hdev = NULL; struct hdac_bus *bus = ebus_to_hbus(ebus); char name[15]; int ret; - hdev = kzalloc(sizeof(*hdev), GFP_KERNEL); - if (!hdev) + edev = kzalloc(sizeof(*hdev), GFP_KERNEL); + if (!edev) return -ENOMEM; + hdev = &edev->hdac; snprintf(name, sizeof(name), "ehdaudio%dD%d", ebus->idx, addr); @@ -158,6 +160,7 @@ int snd_hdac_ext_bus_device_init(struct hdac_ext_bus *ebus, int addr) snd_hdac_ext_bus_device_exit(hdev); return ret; } + return 0; } EXPORT_SYMBOL_GPL(snd_hdac_ext_bus_device_init); @@ -168,8 +171,10 @@ EXPORT_SYMBOL_GPL(snd_hdac_ext_bus_device_init); */ void snd_hdac_ext_bus_device_exit(struct hdac_device *hdev) { + struct hdac_ext_device *edev = to_ehdac_device(hdev); + snd_hdac_device_exit(hdev); - kfree(hdev); + kfree(edev); } EXPORT_SYMBOL_GPL(snd_hdac_ext_bus_device_exit); |