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  * @drsmcap: dma resume capabilities pointer
  16  * @hlink_list: link list of HDA links
  17  */
  18 struct hdac_ext_bus {
  19         struct hdac_bus bus;
  20         int num_streams;
  21         int idx;
  22
  23         void __iomem *ppcap;
  24         void __iomem *spbcap;
  25         void __iomem *mlcap;
  26         void __iomem *gtscap;
  27         void __iomem *drsmcap;
  28
  29         struct list_head hlink_list;
  30 };
  31
  32 int snd_hdac_ext_bus_init(struct hdac_ext_bus *sbus, struct device *dev,
  33                       const struct hdac_bus_ops *ops,
  34                       const struct hdac_io_ops *io_ops);
  35
  36 void snd_hdac_ext_bus_exit(struct hdac_ext_bus *sbus);
  37 int snd_hdac_ext_bus_device_init(struct hdac_ext_bus *sbus, int addr);
  38 void snd_hdac_ext_bus_device_exit(struct hdac_device *hdev);
  39 void snd_hdac_ext_bus_device_remove(struct hdac_ext_bus *ebus);
  40
  41 #define ebus_to_hbus(ebus)      (&(ebus)->bus)
  42 #define hbus_to_ebus(_bus) \
  43         container_of(_bus, struct hdac_ext_bus, bus)
  44
  45 #define HDA_CODEC_REV_EXT_ENTRY(_vid, _rev, _name, drv_data) \
  46         { .vendor_id = (_vid), .rev_id = (_rev), .name = (_name), \
  47           .api_version = HDA_DEV_ASOC, \
  48           .driver_data = (unsigned long)(drv_data) }
  49 #define HDA_CODEC_EXT_ENTRY(_vid, _revid, _name, _drv_data) \
  50         HDA_CODEC_REV_EXT_ENTRY(_vid, _revid, _name, _drv_data)
  51
  52 int snd_hdac_ext_bus_parse_capabilities(struct hdac_ext_bus *sbus);
  53 void snd_hdac_ext_bus_ppcap_enable(struct hdac_ext_bus *chip, bool enable);
  54 void snd_hdac_ext_bus_ppcap_int_enable(struct hdac_ext_bus *chip, bool enable);
  55
  56 void snd_hdac_ext_stream_spbcap_enable(struct hdac_ext_bus *chip,
  57                                  bool enable, int index);
  58
  59 int snd_hdac_ext_bus_get_ml_capabilities(struct hdac_ext_bus *bus);
  60 struct hdac_ext_link *snd_hdac_ext_bus_get_link(struct hdac_ext_bus *bus,
  61                                                 const char *codec_name);
  62
  63 enum hdac_ext_stream_type {
  64         HDAC_EXT_STREAM_TYPE_COUPLED = 0,
  65         HDAC_EXT_STREAM_TYPE_HOST,
  66         HDAC_EXT_STREAM_TYPE_LINK
  67 };
  68
  69 /**
  70  * hdac_ext_stream: HDAC extended stream for extended HDA caps
  71  *
  72  * @hstream: hdac_stream
  73  * @pphc_addr: processing pipe host stream pointer
  74  * @pplc_addr: processing pipe link stream pointer
  75  * @spib_addr: software position in buffers stream pointer
  76  * @fifo_addr: software position Max fifos stream pointer
  77  * @dpibr_addr: DMA position in buffer resume pointer
  78  * @dpib: DMA position in buffer
  79  * @lpib: Linear position in buffer
  80  * @decoupled: stream host and link is decoupled
  81  * @link_locked: link is locked
  82  * @link_prepared: link is prepared
  83  * link_substream: link substream
  84  */
  85 struct hdac_ext_stream {
  86         struct hdac_stream hstream;
  87
  88         void __iomem *pphc_addr;
  89         void __iomem *pplc_addr;
  90
  91         void __iomem *spib_addr;
  92         void __iomem *fifo_addr;
  93
  94         void __iomem *dpibr_addr;
  95
  96         u32 dpib;
  97         u32 lpib;
  98         bool decoupled:1;
  99         bool link_locked:1;
 100         bool link_prepared;
 101
 102         struct snd_pcm_substream *link_substream;
 103 };
 104
 105 #define hdac_stream(s)          (&(s)->hstream)
 106 #define stream_to_hdac_ext_stream(s) \
 107         container_of(s, struct hdac_ext_stream, hstream)
 108
 109 void snd_hdac_ext_stream_init(struct hdac_ext_bus *bus,
 110                                 struct hdac_ext_stream *stream, int idx,
 111                                 int direction, int tag);
 112 int snd_hdac_ext_stream_init_all(struct hdac_ext_bus *ebus, int start_idx,
 113                 int num_stream, int dir);
 114 void snd_hdac_stream_free_all(struct hdac_ext_bus *ebus);
 115 void snd_hdac_link_free_all(struct hdac_ext_bus *ebus);
 116 struct hdac_ext_stream *snd_hdac_ext_stream_assign(struct hdac_ext_bus *bus,
 117                                            struct snd_pcm_substream *substream,
 118                                            int type);
 119 void snd_hdac_ext_stream_release(struct hdac_ext_stream *azx_dev, int type);
 120 void snd_hdac_ext_stream_decouple(struct hdac_ext_bus *bus,
 121                                 struct hdac_ext_stream *azx_dev, bool decouple);
 122 void snd_hdac_ext_stop_streams(struct hdac_ext_bus *sbus);
 123
 124 int snd_hdac_ext_stream_set_spib(struct hdac_ext_bus *ebus,
 125                                  struct hdac_ext_stream *stream, u32 value);
 126 int snd_hdac_ext_stream_get_spbmaxfifo(struct hdac_ext_bus *ebus,
 127                                  struct hdac_ext_stream *stream);
 128 void snd_hdac_ext_stream_drsm_enable(struct hdac_ext_bus *ebus,
 129                                 bool enable, int index);
 130 int snd_hdac_ext_stream_set_dpibr(struct hdac_ext_bus *ebus,
 131                                 struct hdac_ext_stream *stream, u32 value);
 132 int snd_hdac_ext_stream_set_lpib(struct hdac_ext_stream *stream, u32 value);
 133
 134 void snd_hdac_ext_link_stream_start(struct hdac_ext_stream *hstream);
 135 void snd_hdac_ext_link_stream_clear(struct hdac_ext_stream *hstream);
 136 void snd_hdac_ext_link_stream_reset(struct hdac_ext_stream *hstream);
 137 int snd_hdac_ext_link_stream_setup(struct hdac_ext_stream *stream, int fmt);
 138
 139 struct hdac_ext_link {
 140         struct hdac_bus *bus;
 141         int index;
 142         void __iomem *ml_addr; /* link output stream reg pointer */
 143         u32 lcaps;   /* link capablities */
 144         u16 lsdiid;  /* link sdi identifier */
 145         struct list_head list;
 146 };
 147
 148 int snd_hdac_ext_bus_link_power_up(struct hdac_ext_link *link);
 149 int snd_hdac_ext_bus_link_power_down(struct hdac_ext_link *link);
 150 int snd_hdac_ext_bus_link_power_down_all(struct hdac_ext_bus *ebus);
 151 void snd_hdac_ext_link_set_stream_id(struct hdac_ext_link *link,
 152                                  int stream);
 153 void snd_hdac_ext_link_clear_stream_id(struct hdac_ext_link *link,
 154                                  int stream);
 155
 156 /* update register macro */
 157 #define snd_hdac_updatel(addr, reg, mask, val)          \
 158         writel(((readl(addr + reg) & ~(mask)) | (val)), \
 159                 addr + reg)
 160
 161 #define snd_hdac_updatew(addr, reg, mask, val)          \
 162         writew(((readw(addr + reg) & ~(mask)) | (val)), \
 163                 addr + reg)
 164
 165
 166 struct hdac_ext_device;
 167
 168 /* ops common to all codec drivers */
 169 struct hdac_ext_codec_ops {
 170         int (*build_controls)(struct hdac_ext_device *dev);
 171         int (*init)(struct hdac_ext_device *dev);
 172         void (*free)(struct hdac_ext_device *dev);
 173 };
 174
 175 struct hda_dai_map {
 176         char *dai_name;
 177         hda_nid_t nid;
 178         u32     maxbps;
 179 };
 180
 181 #define HDA_MAX_NIDS 16
 182
 183 /**
 184  * struct hdac_ext_device - HDAC Ext device
 185  *
 186  * @hdac: hdac core device
 187  * @nid_list - the dai map which matches the dai-name with the nid
 188  * @map_cur_idx - the idx in use in dai_map
 189  * @ops - the hda codec ops common to all codec drivers
 190  * @pvt_data - private data, for asoc contains asoc codec object
 191  */
 192 struct hdac_ext_device {
 193         struct hdac_device hdac;
 194         struct hdac_ext_bus *ebus;
 195
 196         /* soc-dai to nid map */
 197         struct hda_dai_map nid_list[HDA_MAX_NIDS];
 198         unsigned int map_cur_idx;
 199
 200         /* codec ops */
 201         struct hdac_ext_codec_ops ops;
 202
 203         struct snd_card *card;
 204         void *scodec;
 205         void *private_data;
 206 };
 207
 208 struct hdac_ext_dma_params {
 209         u32 format;
 210         u8 stream_tag;
 211 };
 212 #define to_ehdac_device(dev) (container_of((dev), \
 213                                  struct hdac_ext_device, hdac))
 214 /*
 215  * HD-audio codec base driver
 216  */
 217 struct hdac_ext_driver {
 218         struct hdac_driver hdac;
 219
 220         int     (*probe)(struct hdac_ext_device *dev);
 221         int     (*remove)(struct hdac_ext_device *dev);
 222         void    (*shutdown)(struct hdac_ext_device *dev);
 223 };
 224
 225 int snd_hda_ext_driver_register(struct hdac_ext_driver *drv);
 226 void snd_hda_ext_driver_unregister(struct hdac_ext_driver *drv);
 227
 228 #define to_ehdac_driver(_drv) container_of(_drv, struct hdac_ext_driver, hdac)
 229
 230 #endif /* __SOUND_HDAUDIO_EXT_H */