include/sound/hdaudio_ext.h

   1 /* SPDX-License-Identifier: GPL-2.0 */
   2 #ifndef __SOUND_HDAUDIO_EXT_H
   3 #define __SOUND_HDAUDIO_EXT_H
   4
   5 #include <sound/hdaudio.h>
   6
   7 int snd_hdac_ext_bus_init(struct hdac_bus *bus, struct device *dev,
   8                       const struct hdac_bus_ops *ops,
   9                       const struct hdac_ext_bus_ops *ext_ops);
  10
  11 void snd_hdac_ext_bus_exit(struct hdac_bus *bus);
  12 int snd_hdac_ext_bus_device_init(struct hdac_bus *bus, int addr,
  13                                 struct hdac_device *hdev, int type);
  14 void snd_hdac_ext_bus_device_exit(struct hdac_device *hdev);
  15 void snd_hdac_ext_bus_device_remove(struct hdac_bus *bus);
  16
  17 #define HDA_CODEC_REV_EXT_ENTRY(_vid, _rev, _name, drv_data) \
  18         { .vendor_id = (_vid), .rev_id = (_rev), .name = (_name), \
  19           .api_version = HDA_DEV_ASOC, \
  20           .driver_data = (unsigned long)(drv_data) }
  21 #define HDA_CODEC_EXT_ENTRY(_vid, _revid, _name, _drv_data) \
  22         HDA_CODEC_REV_EXT_ENTRY(_vid, _revid, _name, _drv_data)
  23
  24 void snd_hdac_ext_bus_ppcap_enable(struct hdac_bus *chip, bool enable);
  25 void snd_hdac_ext_bus_ppcap_int_enable(struct hdac_bus *chip, bool enable);
  26
  27 void snd_hdac_ext_stream_spbcap_enable(struct hdac_bus *chip,
  28                                  bool enable, int index);
  29
  30 int snd_hdac_ext_bus_get_ml_capabilities(struct hdac_bus *bus);
  31 struct hdac_ext_link *snd_hdac_ext_bus_get_link(struct hdac_bus *bus,
  32                                                 const char *codec_name);
  33
  34 enum hdac_ext_stream_type {
  35         HDAC_EXT_STREAM_TYPE_COUPLED = 0,
  36         HDAC_EXT_STREAM_TYPE_HOST,
  37         HDAC_EXT_STREAM_TYPE_LINK
  38 };
  39
  40 /**
  41  * hdac_ext_stream: HDAC extended stream for extended HDA caps
  42  *
  43  * @hstream: hdac_stream
  44  * @pphc_addr: processing pipe host stream pointer
  45  * @pplc_addr: processing pipe link stream pointer
  46  * @spib_addr: software position in buffers stream pointer
  47  * @fifo_addr: software position Max fifos stream pointer
  48  * @dpibr_addr: DMA position in buffer resume pointer
  49  * @dpib: DMA position in buffer
  50  * @lpib: Linear position in buffer
  51  * @decoupled: stream host and link is decoupled
  52  * @link_locked: link is locked
  53  * @link_prepared: link is prepared
  54  * @link_substream: link substream
  55  */
  56 struct hdac_ext_stream {
  57         struct hdac_stream hstream;
  58
  59         void __iomem *pphc_addr;
  60         void __iomem *pplc_addr;
  61
  62         void __iomem *spib_addr;
  63         void __iomem *fifo_addr;
  64
  65         void __iomem *dpibr_addr;
  66
  67         u32 dpib;
  68         u32 lpib;
  69         bool decoupled:1;
  70         bool link_locked:1;
  71         bool link_prepared;
  72
  73         struct snd_pcm_substream *link_substream;
  74 };
  75
  76 #define hdac_stream(s)          (&(s)->hstream)
  77 #define stream_to_hdac_ext_stream(s) \
  78         container_of(s, struct hdac_ext_stream, hstream)
  79
  80 void snd_hdac_ext_stream_init(struct hdac_bus *bus,
  81                                 struct hdac_ext_stream *stream, int idx,
  82                                 int direction, int tag);
  83 int snd_hdac_ext_stream_init_all(struct hdac_bus *bus, int start_idx,
  84                 int num_stream, int dir);
  85 void snd_hdac_stream_free_all(struct hdac_bus *bus);
  86 void snd_hdac_link_free_all(struct hdac_bus *bus);
  87 struct hdac_ext_stream *snd_hdac_ext_stream_assign(struct hdac_bus *bus,
  88                                            struct snd_pcm_substream *substream,
  89                                            int type);
  90 void snd_hdac_ext_stream_release(struct hdac_ext_stream *azx_dev, int type);
  91 void snd_hdac_ext_stream_decouple(struct hdac_bus *bus,
  92                                 struct hdac_ext_stream *azx_dev, bool decouple);
  93 void snd_hdac_ext_stop_streams(struct hdac_bus *bus);
  94
  95 int snd_hdac_ext_stream_set_spib(struct hdac_bus *bus,
  96                                  struct hdac_ext_stream *stream, u32 value);
  97 int snd_hdac_ext_stream_get_spbmaxfifo(struct hdac_bus *bus,
  98                                  struct hdac_ext_stream *stream);
  99 void snd_hdac_ext_stream_drsm_enable(struct hdac_bus *bus,
 100                                 bool enable, int index);
 101 int snd_hdac_ext_stream_set_dpibr(struct hdac_bus *bus,
 102                                 struct hdac_ext_stream *stream, u32 value);
 103 int snd_hdac_ext_stream_set_lpib(struct hdac_ext_stream *stream, u32 value);
 104
 105 void snd_hdac_ext_link_stream_start(struct hdac_ext_stream *hstream);
 106 void snd_hdac_ext_link_stream_clear(struct hdac_ext_stream *hstream);
 107 void snd_hdac_ext_link_stream_reset(struct hdac_ext_stream *hstream);
 108 int snd_hdac_ext_link_stream_setup(struct hdac_ext_stream *stream, int fmt);
 109
 110 struct hdac_ext_link {
 111         struct hdac_bus *bus;
 112         int index;
 113         void __iomem *ml_addr; /* link output stream reg pointer */
 114         u32 lcaps;   /* link capablities */
 115         u16 lsdiid;  /* link sdi identifier */
 116
 117         int ref_count;
 118
 119         struct list_head list;
 120 };
 121
 122 int snd_hdac_ext_bus_link_power_up(struct hdac_ext_link *link);
 123 int snd_hdac_ext_bus_link_power_down(struct hdac_ext_link *link);
 124 int snd_hdac_ext_bus_link_power_up_all(struct hdac_bus *bus);
 125 int snd_hdac_ext_bus_link_power_down_all(struct hdac_bus *bus);
 126 void snd_hdac_ext_link_set_stream_id(struct hdac_ext_link *link,
 127                                  int stream);
 128 void snd_hdac_ext_link_clear_stream_id(struct hdac_ext_link *link,
 129                                  int stream);
 130
 131 int snd_hdac_ext_bus_link_get(struct hdac_bus *bus, struct hdac_ext_link *link);
 132 int snd_hdac_ext_bus_link_put(struct hdac_bus *bus, struct hdac_ext_link *link);
 133
 134 void snd_hdac_ext_bus_link_power(struct hdac_device *codec, bool enable);
 135
 136 /* update register macro */
 137 #define snd_hdac_updatel(addr, reg, mask, val)          \
 138         writel(((readl(addr + reg) & ~(mask)) | (val)), \
 139                 addr + reg)
 140
 141 #define snd_hdac_updatew(addr, reg, mask, val)          \
 142         writew(((readw(addr + reg) & ~(mask)) | (val)), \
 143                 addr + reg)
 144
 145
 146 struct hdac_ext_device;
 147
 148 /* ops common to all codec drivers */
 149 struct hdac_ext_codec_ops {
 150         int (*build_controls)(struct hdac_ext_device *dev);
 151         int (*init)(struct hdac_ext_device *dev);
 152         void (*free)(struct hdac_ext_device *dev);
 153 };
 154
 155 struct hda_dai_map {
 156         char *dai_name;
 157         hda_nid_t nid;
 158         u32     maxbps;
 159 };
 160
 161 struct hdac_ext_dma_params {
 162         u32 format;
 163         u8 stream_tag;
 164 };
 165
 166 int snd_hda_ext_driver_register(struct hdac_driver *drv);
 167 void snd_hda_ext_driver_unregister(struct hdac_driver *drv);
 168
 169 #endif /* __SOUND_HDAUDIO_EXT_H */