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);
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 /* 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 
144 struct hdac_ext_device;
145 
146 /* ops common to all codec drivers */
147 struct 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 
153 struct hda_dai_map {
154 	char *dai_name;
155 	hda_nid_t nid;
156 	u32	maxbps;
157 };
158 
159 struct hdac_ext_dma_params {
160 	u32 format;
161 	u8 stream_tag;
162 };
163 
164 int snd_hda_ext_driver_register(struct hdac_driver *drv);
165 void snd_hda_ext_driver_unregister(struct hdac_driver *drv);
166 
167 #endif /* __SOUND_HDAUDIO_EXT_H */
168