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  * @lock: lock for link mgmt
  18  * @cmd_dma_state: state of cmd DMAs: CORB and RIRB
  19  */
  20 struct hdac_ext_bus {
  21         struct hdac_bus bus;
  22         int num_streams;
  23         int idx;
  24
  25         void __iomem *ppcap;
  26         void __iomem *spbcap;
  27         void __iomem *mlcap;
  28         void __iomem *gtscap;
  29         void __iomem *drsmcap;
  30
  31         struct list_head hlink_list;
  32
  33         struct mutex lock;
  34         bool cmd_dma_state;
  35 };
  36
  37 int snd_hdac_ext_bus_init(struct hdac_ext_bus *sbus, struct device *dev,
  38                       const struct hdac_bus_ops *ops,
  39                       const struct hdac_io_ops *io_ops);
  40
  41 void snd_hdac_ext_bus_exit(struct hdac_ext_bus *sbus);
  42 int snd_hdac_ext_bus_device_init(struct hdac_ext_bus *sbus, int addr);
  43 void snd_hdac_ext_bus_device_exit(struct hdac_device *hdev);
  44 void snd_hdac_ext_bus_device_remove(struct hdac_ext_bus *ebus);
  45
  46 #define ebus_to_hbus(ebus)      (&(ebus)->bus)
  47 #define hbus_to_ebus(_bus) \
  48         container_of(_bus, struct hdac_ext_bus, bus)
  49
  50 #define HDA_CODEC_REV_EXT_ENTRY(_vid, _rev, _name, drv_data) \
  51         { .vendor_id = (_vid), .rev_id = (_rev), .name = (_name), \
  52           .api_version = HDA_DEV_ASOC, \
  53           .driver_data = (unsigned long)(drv_data) }
  54 #define HDA_CODEC_EXT_ENTRY(_vid, _revid, _name, _drv_data) \
  55         HDA_CODEC_REV_EXT_ENTRY(_vid, _revid, _name, _drv_data)
  56
  57 int snd_hdac_ext_bus_parse_capabilities(struct hdac_ext_bus *sbus);
  58 void snd_hdac_ext_bus_ppcap_enable(struct hdac_ext_bus *chip, bool enable);
  59 void snd_hdac_ext_bus_ppcap_int_enable(struct hdac_ext_bus *chip, bool enable);
  60
  61 void snd_hdac_ext_stream_spbcap_enable(struct hdac_ext_bus *chip,
  62                                  bool enable, int index);
  63
  64 int snd_hdac_ext_bus_get_ml_capabilities(struct hdac_ext_bus *bus);
  65 struct hdac_ext_link *snd_hdac_ext_bus_get_link(struct hdac_ext_bus *bus,
  66                                                 const char *codec_name);
  67
  68 enum hdac_ext_stream_type {
  69         HDAC_EXT_STREAM_TYPE_COUPLED = 0,
  70         HDAC_EXT_STREAM_TYPE_HOST,
  71         HDAC_EXT_STREAM_TYPE_LINK
  72 };
  73
  74 /**
  75  * hdac_ext_stream: HDAC extended stream for extended HDA caps
  76  *
  77  * @hstream: hdac_stream
  78  * @pphc_addr: processing pipe host stream pointer
  79  * @pplc_addr: processing pipe link stream pointer
  80  * @spib_addr: software position in buffers stream pointer
  81  * @fifo_addr: software position Max fifos stream pointer
  82  * @dpibr_addr: DMA position in buffer resume pointer
  83  * @dpib: DMA position in buffer
  84  * @lpib: Linear position in buffer
  85  * @decoupled: stream host and link is decoupled
  86  * @link_locked: link is locked
  87  * @link_prepared: link is prepared
  88  * link_substream: link substream
  89  */
  90 struct hdac_ext_stream {
  91         struct hdac_stream hstream;
  92
  93         void __iomem *pphc_addr;
  94         void __iomem *pplc_addr;
  95
  96         void __iomem *spib_addr;
  97         void __iomem *fifo_addr;
  98
  99         void __iomem *dpibr_addr;
 100
 101         u32 dpib;
 102         u32 lpib;
 103         bool decoupled:1;
 104         bool link_locked:1;
 105         bool link_prepared;
 106
 107         struct snd_pcm_substream *link_substream;
 108 };
 109
 110 #define hdac_stream(s)          (&(s)->hstream)
 111 #define stream_to_hdac_ext_stream(s) \
 112         container_of(s, struct hdac_ext_stream, hstream)
 113
 114 void snd_hdac_ext_stream_init(struct hdac_ext_bus *bus,
 115                                 struct hdac_ext_stream *stream, int idx,
 116                                 int direction, int tag);
 117 int snd_hdac_ext_stream_init_all(struct hdac_ext_bus *ebus, int start_idx,
 118                 int num_stream, int dir);
 119 void snd_hdac_stream_free_all(struct hdac_ext_bus *ebus);
 120 void snd_hdac_link_free_all(struct hdac_ext_bus *ebus);
 121 struct hdac_ext_stream *snd_hdac_ext_stream_assign(struct hdac_ext_bus *bus,
 122                                            struct snd_pcm_substream *substream,
 123                                            int type);
 124 void snd_hdac_ext_stream_release(struct hdac_ext_stream *azx_dev, int type);
 125 void snd_hdac_ext_stream_decouple(struct hdac_ext_bus *bus,
 126                                 struct hdac_ext_stream *azx_dev, bool decouple);
 127 void snd_hdac_ext_stop_streams(struct hdac_ext_bus *sbus);
 128
 129 int snd_hdac_ext_stream_set_spib(struct hdac_ext_bus *ebus,
 130                                  struct hdac_ext_stream *stream, u32 value);
 131 int snd_hdac_ext_stream_get_spbmaxfifo(struct hdac_ext_bus *ebus,
 132                                  struct hdac_ext_stream *stream);
 133 void snd_hdac_ext_stream_drsm_enable(struct hdac_ext_bus *ebus,
 134                                 bool enable, int index);
 135 int snd_hdac_ext_stream_set_dpibr(struct hdac_ext_bus *ebus,
 136                                 struct hdac_ext_stream *stream, u32 value);
 137 int snd_hdac_ext_stream_set_lpib(struct hdac_ext_stream *stream, u32 value);
 138
 139 void snd_hdac_ext_link_stream_start(struct hdac_ext_stream *hstream);
 140 void snd_hdac_ext_link_stream_clear(struct hdac_ext_stream *hstream);
 141 void snd_hdac_ext_link_stream_reset(struct hdac_ext_stream *hstream);
 142 int snd_hdac_ext_link_stream_setup(struct hdac_ext_stream *stream, int fmt);
 143
 144 struct hdac_ext_link {
 145         struct hdac_bus *bus;
 146         int index;
 147         void __iomem *ml_addr; /* link output stream reg pointer */
 148         u32 lcaps;   /* link capablities */
 149         u16 lsdiid;  /* link sdi identifier */
 150
 151         int ref_count;
 152
 153         struct list_head list;
 154 };
 155
 156 int snd_hdac_ext_bus_link_power_up(struct hdac_ext_link *link);
 157 int snd_hdac_ext_bus_link_power_down(struct hdac_ext_link *link);
 158 int snd_hdac_ext_bus_link_power_up_all(struct hdac_ext_bus *ebus);
 159 int snd_hdac_ext_bus_link_power_down_all(struct hdac_ext_bus *ebus);
 160 void snd_hdac_ext_link_set_stream_id(struct hdac_ext_link *link,
 161                                  int stream);
 162 void snd_hdac_ext_link_clear_stream_id(struct hdac_ext_link *link,
 163                                  int stream);
 164
 165 int snd_hdac_ext_bus_link_get(struct hdac_ext_bus *ebus,
 166                                 struct hdac_ext_link *link);
 167 int snd_hdac_ext_bus_link_put(struct hdac_ext_bus *ebus,
 168                                 struct hdac_ext_link *link);
 169
 170 /* update register macro */
 171 #define snd_hdac_updatel(addr, reg, mask, val)          \
 172         writel(((readl(addr + reg) & ~(mask)) | (val)), \
 173                 addr + reg)
 174
 175 #define snd_hdac_updatew(addr, reg, mask, val)          \
 176         writew(((readw(addr + reg) & ~(mask)) | (val)), \
 177                 addr + reg)
 178
 179
 180 struct hdac_ext_device;
 181
 182 /* ops common to all codec drivers */
 183 struct hdac_ext_codec_ops {
 184         int (*build_controls)(struct hdac_ext_device *dev);
 185         int (*init)(struct hdac_ext_device *dev);
 186         void (*free)(struct hdac_ext_device *dev);
 187 };
 188
 189 struct hda_dai_map {
 190         char *dai_name;
 191         hda_nid_t nid;
 192         u32     maxbps;
 193 };
 194
 195 #define HDA_MAX_NIDS 16
 196
 197 /**
 198  * struct hdac_ext_device - HDAC Ext device
 199  *
 200  * @hdac: hdac core device
 201  * @nid_list - the dai map which matches the dai-name with the nid
 202  * @map_cur_idx - the idx in use in dai_map
 203  * @ops - the hda codec ops common to all codec drivers
 204  * @pvt_data - private data, for asoc contains asoc codec object
 205  */
 206 struct hdac_ext_device {
 207         struct hdac_device hdac;
 208         struct hdac_ext_bus *ebus;
 209
 210         /* soc-dai to nid map */
 211         struct hda_dai_map nid_list[HDA_MAX_NIDS];
 212         unsigned int map_cur_idx;
 213
 214         /* codec ops */
 215         struct hdac_ext_codec_ops ops;
 216
 217         struct snd_card *card;
 218         void *scodec;
 219         void *private_data;
 220 };
 221
 222 struct hdac_ext_dma_params {
 223         u32 format;
 224         u8 stream_tag;
 225 };
 226 #define to_ehdac_device(dev) (container_of((dev), \
 227                                  struct hdac_ext_device, hdac))
 228 /*
 229  * HD-audio codec base driver
 230  */
 231 struct hdac_ext_driver {
 232         struct hdac_driver hdac;
 233
 234         int     (*probe)(struct hdac_ext_device *dev);
 235         int     (*remove)(struct hdac_ext_device *dev);
 236         void    (*shutdown)(struct hdac_ext_device *dev);
 237 };
 238
 239 int snd_hda_ext_driver_register(struct hdac_ext_driver *drv);
 240 void snd_hda_ext_driver_unregister(struct hdac_ext_driver *drv);
 241
 242 #define to_ehdac_driver(_drv) container_of(_drv, struct hdac_ext_driver, hdac)
 243
 244 #endif /* __SOUND_HDAUDIO_EXT_H */