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>
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@ -130,4 +130,48 @@ void snd_hdac_ext_link_clear_stream_id(struct hdac_ext_link *link,
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writew(((readw(addr + reg) & ~(mask)) | (val)), \
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addr + reg)
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struct hdac_ext_device;
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/* ops common to all codec drivers */
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struct hdac_ext_codec_ops {
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int (*build_controls)(struct hdac_ext_device *dev);
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int (*init)(struct hdac_ext_device *dev);
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void (*free)(struct hdac_ext_device *dev);
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};
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struct hda_dai_map {
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char *dai_name;
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hda_nid_t nid;
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u32 maxbps;
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};
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#define HDA_MAX_NIDS 16
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/**
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* struct hdac_ext_device - HDAC Ext device
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*
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* @hdac: hdac core device
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* @nid_list - the dai map which matches the dai-name with the nid
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* @map_cur_idx - the idx in use in dai_map
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* @ops - the hda codec ops common to all codec drivers
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* @pvt_data - private data, for asoc contains asoc codec object
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*/
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struct hdac_ext_device {
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struct hdac_device hdac;
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struct hdac_ext_bus *ebus;
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/* soc-dai to nid map */
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struct hda_dai_map nid_list[HDA_MAX_NIDS];
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unsigned int map_cur_idx;
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/* codec ops */
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struct hdac_ext_codec_ops ops;
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void *private_data;
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};
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#define to_ehdac_device(dev) (container_of((dev), \
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struct hdac_ext_device, hdac))
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#endif /* __SOUND_HDAUDIO_EXT_H */
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@ -125,7 +125,7 @@ static void default_release(struct device *dev)
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}
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/**
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* snd_hdac_ext_device_init - initialize the HDA extended codec base device
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* snd_hdac_ext_bus_device_init - initialize the HDA extended codec base device
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* @ebus: hdac extended bus to attach to
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* @addr: codec address
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*
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@ -133,14 +133,16 @@ static void default_release(struct device *dev)
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*/
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int snd_hdac_ext_bus_device_init(struct hdac_ext_bus *ebus, int addr)
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{
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struct hdac_ext_device *edev;
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struct hdac_device *hdev = NULL;
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struct hdac_bus *bus = ebus_to_hbus(ebus);
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char name[15];
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int ret;
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hdev = kzalloc(sizeof(*hdev), GFP_KERNEL);
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if (!hdev)
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edev = kzalloc(sizeof(*hdev), GFP_KERNEL);
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if (!edev)
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return -ENOMEM;
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hdev = &edev->hdac;
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snprintf(name, sizeof(name), "ehdaudio%dD%d", ebus->idx, addr);
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@ -158,6 +160,7 @@ int snd_hdac_ext_bus_device_init(struct hdac_ext_bus *ebus, int addr)
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snd_hdac_ext_bus_device_exit(hdev);
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return ret;
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}
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return 0;
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}
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EXPORT_SYMBOL_GPL(snd_hdac_ext_bus_device_init);
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@ -168,8 +171,10 @@ EXPORT_SYMBOL_GPL(snd_hdac_ext_bus_device_init);
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*/
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void snd_hdac_ext_bus_device_exit(struct hdac_device *hdev)
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{
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struct hdac_ext_device *edev = to_ehdac_device(hdev);
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snd_hdac_device_exit(hdev);
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kfree(hdev);
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kfree(edev);
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}
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EXPORT_SYMBOL_GPL(snd_hdac_ext_bus_device_exit);
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