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 */
169