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