kernel/include/sound/hdaudio_ext.h

   1 #ifndef __SOUND_HDAUDIO_EXT_H
   2 #define __SOUND_HDAUDIO_EXT_H
   3
   4 #include <sound/hdaudio.h>
   5
   6 /**
   7  * hdac_ext_bus: HDAC extended bus for extended HDA caps
   8  *
   9  * @bus: hdac bus
  10  * @num_streams: streams supported
  11  * @ppcap: pp capabilities pointer
  12  * @spbcap: SPIB capabilities pointer
  13  * @mlcap: MultiLink capabilities pointer
  14  * @gtscap: gts capabilities pointer
  15  * @hlink_list: link list of HDA links
  16  */
  17 struct hdac_ext_bus {
  18         struct hdac_bus bus;
  19         int num_streams;
  20         int idx;
  21
  22         void __iomem *ppcap;
  23         void __iomem *spbcap;
  24         void __iomem *mlcap;
  25         void __iomem *gtscap;
  26
  27         struct list_head hlink_list;
  28 };
  29
  30 int snd_hdac_ext_bus_init(struct hdac_ext_bus *sbus, struct device *dev,
  31                       const struct hdac_bus_ops *ops,
  32                       const struct hdac_io_ops *io_ops);
  33
  34 void snd_hdac_ext_bus_exit(struct hdac_ext_bus *sbus);
  35 int snd_hdac_ext_bus_device_init(struct hdac_ext_bus *sbus, int addr);
  36 void snd_hdac_ext_bus_device_exit(struct hdac_device *hdev);
  37 void snd_hdac_ext_bus_device_remove(struct hdac_ext_bus *ebus);
  38
  39 #define ebus_to_hbus(ebus)      (&(ebus)->bus)
  40 #define hbus_to_ebus(_bus) \
  41         container_of(_bus, struct hdac_ext_bus, bus)
  42
  43 #define HDA_CODEC_REV_EXT_ENTRY(_vid, _rev, _name, drv_data) \
  44         { .vendor_id = (_vid), .rev_id = (_rev), .name = (_name), \
  45           .api_version = HDA_DEV_ASOC, \
  46           .driver_data = (unsigned long)(drv_data) }
  47 #define HDA_CODEC_EXT_ENTRY(_vid, _revid, _name, _drv_data) \
  48         HDA_CODEC_REV_EXT_ENTRY(_vid, _revid, _name, _drv_data)
  49
  50 int snd_hdac_ext_bus_parse_capabilities(struct hdac_ext_bus *sbus);
  51 void snd_hdac_ext_bus_ppcap_enable(struct hdac_ext_bus *chip, bool enable);
  52 void snd_hdac_ext_bus_ppcap_int_enable(struct hdac_ext_bus *chip, bool enable);
  53
  54 void snd_hdac_ext_stream_spbcap_enable(struct hdac_ext_bus *chip,
  55                                  bool enable, int index);
  56
  57 int snd_hdac_ext_bus_get_ml_capabilities(struct hdac_ext_bus *bus);
  58 struct hdac_ext_link *snd_hdac_ext_bus_get_link(struct hdac_ext_bus *bus,
  59                                                 const char *codec_name);
  60
  61 enum hdac_ext_stream_type {
  62         HDAC_EXT_STREAM_TYPE_COUPLED = 0,
  63         HDAC_EXT_STREAM_TYPE_HOST,
  64         HDAC_EXT_STREAM_TYPE_LINK
  65 };
  66
  67 /**
  68  * hdac_ext_stream: HDAC extended stream for extended HDA caps
  69  *
  70  * @hstream: hdac_stream
  71  * @pphc_addr: processing pipe host stream pointer
  72  * @pplc_addr: processing pipe link stream pointer
  73  * @spib_addr: software position in buffers stream pointer
  74  * @fifo_addr: software position Max fifos stream pointer
  75  * @decoupled: stream host and link is decoupled
  76  * @link_locked: link is locked
  77  * @link_prepared: link is prepared
  78  * link_substream: link substream
  79  */
  80 struct hdac_ext_stream {
  81         struct hdac_stream hstream;
  82
  83         void __iomem *pphc_addr;
  84         void __iomem *pplc_addr;
  85
  86         void __iomem *spib_addr;
  87         void __iomem *fifo_addr;
  88
  89         bool decoupled:1;
  90         bool link_locked:1;
  91         bool link_prepared;
  92
  93         struct snd_pcm_substream *link_substream;
  94 };
  95
  96 #define hdac_stream(s)          (&(s)->hstream)
  97 #define stream_to_hdac_ext_stream(s) \
  98         container_of(s, struct hdac_ext_stream, hstream)
  99
 100 void snd_hdac_ext_stream_init(struct hdac_ext_bus *bus,
 101                                 struct hdac_ext_stream *stream, int idx,
 102                                 int direction, int tag);
 103 int snd_hdac_ext_stream_init_all(struct hdac_ext_bus *ebus, int start_idx,
 104                 int num_stream, int dir);
 105 void snd_hdac_stream_free_all(struct hdac_ext_bus *ebus);
 106 void snd_hdac_link_free_all(struct hdac_ext_bus *ebus);
 107 struct hdac_ext_stream *snd_hdac_ext_stream_assign(struct hdac_ext_bus *bus,
 108                                            struct snd_pcm_substream *substream,
 109                                            int type);
 110 void snd_hdac_ext_stream_release(struct hdac_ext_stream *azx_dev, int type);
 111 void snd_hdac_ext_stream_decouple(struct hdac_ext_bus *bus,
 112                                 struct hdac_ext_stream *azx_dev, bool decouple);
 113 void snd_hdac_ext_stop_streams(struct hdac_ext_bus *sbus);
 114
 115 int snd_hdac_ext_stream_set_spib(struct hdac_ext_bus *ebus,
 116                                  struct hdac_ext_stream *stream, u32 value);
 117 int snd_hdac_ext_stream_get_spbmaxfifo(struct hdac_ext_bus *ebus,
 118                                  struct hdac_ext_stream *stream);
 119
 120 void snd_hdac_ext_link_stream_start(struct hdac_ext_stream *hstream);
 121 void snd_hdac_ext_link_stream_clear(struct hdac_ext_stream *hstream);
 122 void snd_hdac_ext_link_stream_reset(struct hdac_ext_stream *hstream);
 123 int snd_hdac_ext_link_stream_setup(struct hdac_ext_stream *stream, int fmt);
 124
 125 struct hdac_ext_link {
 126         struct hdac_bus *bus;
 127         int index;
 128         void __iomem *ml_addr; /* link output stream reg pointer */
 129         u32 lcaps;   /* link capablities */
 130         u16 lsdiid;  /* link sdi identifier */
 131         struct list_head list;
 132 };
 133
 134 int snd_hdac_ext_bus_link_power_up(struct hdac_ext_link *link);
 135 int snd_hdac_ext_bus_link_power_down(struct hdac_ext_link *link);
 136 int snd_hdac_ext_bus_link_power_down_all(struct hdac_ext_bus *ebus);
 137 void snd_hdac_ext_link_set_stream_id(struct hdac_ext_link *link,
 138                                  int stream);
 139 void snd_hdac_ext_link_clear_stream_id(struct hdac_ext_link *link,
 140                                  int stream);
 141
 142 /* update register macro */
 143 #define snd_hdac_updatel(addr, reg, mask, val)          \
 144         writel(((readl(addr + reg) & ~(mask)) | (val)), \
 145                 addr + reg)
 146
 147 #define snd_hdac_updatew(addr, reg, mask, val)          \
 148         writew(((readw(addr + reg) & ~(mask)) | (val)), \
 149                 addr + reg)
 150
 151
 152 struct hdac_ext_device;
 153
 154 /* ops common to all codec drivers */
 155 struct hdac_ext_codec_ops {
 156         int (*build_controls)(struct hdac_ext_device *dev);
 157         int (*init)(struct hdac_ext_device *dev);
 158         void (*free)(struct hdac_ext_device *dev);
 159 };
 160
 161 struct hda_dai_map {
 162         char *dai_name;
 163         hda_nid_t nid;
 164         u32     maxbps;
 165 };
 166
 167 #define HDA_MAX_NIDS 16
 168
 169 /**
 170  * struct hdac_ext_device - HDAC Ext device
 171  *
 172  * @hdac: hdac core device
 173  * @nid_list - the dai map which matches the dai-name with the nid
 174  * @map_cur_idx - the idx in use in dai_map
 175  * @ops - the hda codec ops common to all codec drivers
 176  * @pvt_data - private data, for asoc contains asoc codec object
 177  */
 178 struct hdac_ext_device {
 179         struct hdac_device hdac;
 180         struct hdac_ext_bus *ebus;
 181
 182         /* soc-dai to nid map */
 183         struct hda_dai_map nid_list[HDA_MAX_NIDS];
 184         unsigned int map_cur_idx;
 185
 186         /* codec ops */
 187         struct hdac_ext_codec_ops ops;
 188
 189         void *private_data;
 190 };
 191
 192 #define to_ehdac_device(dev) (container_of((dev), \
 193                                  struct hdac_ext_device, hdac))
 194 /*
 195  * HD-audio codec base driver
 196  */
 197 struct hdac_ext_driver {
 198         struct hdac_driver hdac;
 199
 200         int     (*probe)(struct hdac_ext_device *dev);
 201         int     (*remove)(struct hdac_ext_device *dev);
 202         void    (*shutdown)(struct hdac_ext_device *dev);
 203 };
 204
 205 int snd_hda_ext_driver_register(struct hdac_ext_driver *drv);
 206 void snd_hda_ext_driver_unregister(struct hdac_ext_driver *drv);
 207
 208 #define to_ehdac_driver(_drv) container_of(_drv, struct hdac_ext_driver, hdac)
 209
 210 #endif /* __SOUND_HDAUDIO_EXT_H */