LXR linux/include/sound/hdaudio

   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 */
  18struct 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
  32int 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
  36void snd_hdac_ext_bus_exit(struct hdac_ext_bus *sbus);
  37int snd_hdac_ext_bus_device_init(struct hdac_ext_bus *sbus, int addr);
  38void snd_hdac_ext_bus_device_exit(struct hdac_device *hdev);
  39void 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
  52int snd_hdac_ext_bus_parse_capabilities(struct hdac_ext_bus *sbus);
  53void snd_hdac_ext_bus_ppcap_enable(struct hdac_ext_bus *chip, bool enable);
  54void snd_hdac_ext_bus_ppcap_int_enable(struct hdac_ext_bus *chip, bool enable);
  55
  56void snd_hdac_ext_stream_spbcap_enable(struct hdac_ext_bus *chip,
  57                                 bool enable, int index);
  58
  59int snd_hdac_ext_bus_get_ml_capabilities(struct hdac_ext_bus *bus);
  60struct hdac_ext_link *snd_hdac_ext_bus_get_link(struct hdac_ext_bus *bus,
  61                                                const char *codec_name);
  62
  63enum 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 */
  85struct 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
 109void snd_hdac_ext_stream_init(struct hdac_ext_bus *bus,
 110                                struct hdac_ext_stream *stream, int idx,
 111                                int direction, int tag);
 112int snd_hdac_ext_stream_init_all(struct hdac_ext_bus *ebus, int start_idx,
 113                int num_stream, int dir);
 114void snd_hdac_stream_free_all(struct hdac_ext_bus *ebus);
 115void snd_hdac_link_free_all(struct hdac_ext_bus *ebus);
 116struct hdac_ext_stream *snd_hdac_ext_stream_assign(struct hdac_ext_bus *bus,
 117                                           struct snd_pcm_substream *substream,
 118                                           int type);
 119void snd_hdac_ext_stream_release(struct hdac_ext_stream *azx_dev, int type);
 120void snd_hdac_ext_stream_decouple(struct hdac_ext_bus *bus,
 121                                struct hdac_ext_stream *azx_dev, bool decouple);
 122void snd_hdac_ext_stop_streams(struct hdac_ext_bus *sbus);
 123
 124int snd_hdac_ext_stream_set_spib(struct hdac_ext_bus *ebus,
 125                                 struct hdac_ext_stream *stream, u32 value);
 126int snd_hdac_ext_stream_get_spbmaxfifo(struct hdac_ext_bus *ebus,
 127                                 struct hdac_ext_stream *stream);
 128void snd_hdac_ext_stream_drsm_enable(struct hdac_ext_bus *ebus,
 129                                bool enable, int index);
 130int snd_hdac_ext_stream_set_dpibr(struct hdac_ext_bus *ebus,
 131                                struct hdac_ext_stream *stream, u32 value);
 132int snd_hdac_ext_stream_set_lpib(struct hdac_ext_stream *stream, u32 value);
 133
 134void snd_hdac_ext_link_stream_start(struct hdac_ext_stream *hstream);
 135void snd_hdac_ext_link_stream_clear(struct hdac_ext_stream *hstream);
 136void snd_hdac_ext_link_stream_reset(struct hdac_ext_stream *hstream);
 137int snd_hdac_ext_link_stream_setup(struct hdac_ext_stream *stream, int fmt);
 138
 139struct 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
 148int snd_hdac_ext_bus_link_power_up(struct hdac_ext_link *link);
 149int snd_hdac_ext_bus_link_power_down(struct hdac_ext_link *link);
 150int snd_hdac_ext_bus_link_power_up_all(struct hdac_ext_bus *ebus);
 151int snd_hdac_ext_bus_link_power_down_all(struct hdac_ext_bus *ebus);
 152void snd_hdac_ext_link_set_stream_id(struct hdac_ext_link *link,
 153                                 int stream);
 154void snd_hdac_ext_link_clear_stream_id(struct hdac_ext_link *link,
 155                                 int stream);
 156
 157/* update register macro */
 158#define snd_hdac_updatel(addr, reg, mask, val)          \
 159        writel(((readl(addr + reg) & ~(mask)) | (val)), \
 160                addr + reg)
 161
 162#define snd_hdac_updatew(addr, reg, mask, val)          \
 163        writew(((readw(addr + reg) & ~(mask)) | (val)), \
 164                addr + reg)
 165
 166
 167struct hdac_ext_device;
 168
 169/* ops common to all codec drivers */
 170struct hdac_ext_codec_ops {
 171        int (*build_controls)(struct hdac_ext_device *dev);
 172        int (*init)(struct hdac_ext_device *dev);
 173        void (*free)(struct hdac_ext_device *dev);
 174};
 175
 176struct hda_dai_map {
 177        char *dai_name;
 178        hda_nid_t nid;
 179        u32     maxbps;
 180};
 181
 182#define HDA_MAX_NIDS 16
 183
 184/**
 185 * struct hdac_ext_device - HDAC Ext device
 186 *
 187 * @hdac: hdac core device
 188 * @nid_list - the dai map which matches the dai-name with the nid
 189 * @map_cur_idx - the idx in use in dai_map
 190 * @ops - the hda codec ops common to all codec drivers
 191 * @pvt_data - private data, for asoc contains asoc codec object
 192 */
 193struct hdac_ext_device {
 194        struct hdac_device hdac;
 195        struct hdac_ext_bus *ebus;
 196
 197        /* soc-dai to nid map */
 198        struct hda_dai_map nid_list[HDA_MAX_NIDS];
 199        unsigned int map_cur_idx;
 200
 201        /* codec ops */
 202        struct hdac_ext_codec_ops ops;
 203
 204        struct snd_card *card;
 205        void *scodec;
 206        void *private_data;
 207};
 208
 209struct hdac_ext_dma_params {
 210        u32 format;
 211        u8 stream_tag;
 212};
 213#define to_ehdac_device(dev) (container_of((dev), \
 214                                 struct hdac_ext_device, hdac))
 215/*
 216 * HD-audio codec base driver
 217 */
 218struct hdac_ext_driver {
 219        struct hdac_driver hdac;
 220
 221        int     (*probe)(struct hdac_ext_device *dev);
 222        int     (*remove)(struct hdac_ext_device *dev);
 223        void    (*shutdown)(struct hdac_ext_device *dev);
 224};
 225
 226int snd_hda_ext_driver_register(struct hdac_ext_driver *drv);
 227void snd_hda_ext_driver_unregister(struct hdac_ext_driver *drv);
 228
 229#define to_ehdac_driver(_drv) container_of(_drv, struct hdac_ext_driver, hdac)
 230
 231#endif /* __SOUND_HDAUDIO_EXT_H */
 232