linux/include/sound/hdaudio_ext.h
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   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
   7int 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
  11void snd_hdac_ext_bus_exit(struct hdac_bus *bus);
  12int snd_hdac_ext_bus_device_init(struct hdac_bus *bus, int addr,
  13                                                struct hdac_device *hdev);
  14void snd_hdac_ext_bus_device_exit(struct hdac_device *hdev);
  15void 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
  24void snd_hdac_ext_bus_ppcap_enable(struct hdac_bus *chip, bool enable);
  25void snd_hdac_ext_bus_ppcap_int_enable(struct hdac_bus *chip, bool enable);
  26
  27void snd_hdac_ext_stream_spbcap_enable(struct hdac_bus *chip,
  28                                 bool enable, int index);
  29
  30int snd_hdac_ext_bus_get_ml_capabilities(struct hdac_bus *bus);
  31struct hdac_ext_link *snd_hdac_ext_bus_get_link(struct hdac_bus *bus,
  32                                                const char *codec_name);
  33
  34enum 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 */
  56struct 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
  80void snd_hdac_ext_stream_init(struct hdac_bus *bus,
  81                                struct hdac_ext_stream *stream, int idx,
  82                                int direction, int tag);
  83int snd_hdac_ext_stream_init_all(struct hdac_bus *bus, int start_idx,
  84                int num_stream, int dir);
  85void snd_hdac_stream_free_all(struct hdac_bus *bus);
  86void snd_hdac_link_free_all(struct hdac_bus *bus);
  87struct hdac_ext_stream *snd_hdac_ext_stream_assign(struct hdac_bus *bus,
  88                                           struct snd_pcm_substream *substream,
  89                                           int type);
  90void snd_hdac_ext_stream_release(struct hdac_ext_stream *azx_dev, int type);
  91void snd_hdac_ext_stream_decouple(struct hdac_bus *bus,
  92                                struct hdac_ext_stream *azx_dev, bool decouple);
  93void snd_hdac_ext_stop_streams(struct hdac_bus *bus);
  94
  95int snd_hdac_ext_stream_set_spib(struct hdac_bus *bus,
  96                                 struct hdac_ext_stream *stream, u32 value);
  97int snd_hdac_ext_stream_get_spbmaxfifo(struct hdac_bus *bus,
  98                                 struct hdac_ext_stream *stream);
  99void snd_hdac_ext_stream_drsm_enable(struct hdac_bus *bus,
 100                                bool enable, int index);
 101int snd_hdac_ext_stream_set_dpibr(struct hdac_bus *bus,
 102                                struct hdac_ext_stream *stream, u32 value);
 103int snd_hdac_ext_stream_set_lpib(struct hdac_ext_stream *stream, u32 value);
 104
 105void snd_hdac_ext_link_stream_start(struct hdac_ext_stream *hstream);
 106void snd_hdac_ext_link_stream_clear(struct hdac_ext_stream *hstream);
 107void snd_hdac_ext_link_stream_reset(struct hdac_ext_stream *hstream);
 108int snd_hdac_ext_link_stream_setup(struct hdac_ext_stream *stream, int fmt);
 109
 110struct 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
 122int snd_hdac_ext_bus_link_power_up(struct hdac_ext_link *link);
 123int snd_hdac_ext_bus_link_power_down(struct hdac_ext_link *link);
 124int snd_hdac_ext_bus_link_power_up_all(struct hdac_bus *bus);
 125int snd_hdac_ext_bus_link_power_down_all(struct hdac_bus *bus);
 126void snd_hdac_ext_link_set_stream_id(struct hdac_ext_link *link,
 127                                 int stream);
 128void snd_hdac_ext_link_clear_stream_id(struct hdac_ext_link *link,
 129                                 int stream);
 130
 131int snd_hdac_ext_bus_link_get(struct hdac_bus *bus, struct hdac_ext_link *link);
 132int snd_hdac_ext_bus_link_put(struct hdac_bus *bus, struct hdac_ext_link *link);
 133
 134/* update register macro */
 135#define snd_hdac_updatel(addr, reg, mask, val)          \
 136        writel(((readl(addr + reg) & ~(mask)) | (val)), \
 137                addr + reg)
 138
 139#define snd_hdac_updatew(addr, reg, mask, val)          \
 140        writew(((readw(addr + reg) & ~(mask)) | (val)), \
 141                addr + reg)
 142
 143
 144struct hdac_ext_device;
 145
 146/* ops common to all codec drivers */
 147struct hdac_ext_codec_ops {
 148        int (*build_controls)(struct hdac_ext_device *dev);
 149        int (*init)(struct hdac_ext_device *dev);
 150        void (*free)(struct hdac_ext_device *dev);
 151};
 152
 153struct hda_dai_map {
 154        char *dai_name;
 155        hda_nid_t nid;
 156        u32     maxbps;
 157};
 158
 159struct hdac_ext_dma_params {
 160        u32 format;
 161        u8 stream_tag;
 162};
 163
 164int snd_hda_ext_driver_register(struct hdac_driver *drv);
 165void snd_hda_ext_driver_unregister(struct hdac_driver *drv);
 166
 167#endif /* __SOUND_HDAUDIO_EXT_H */
 168