1#ifndef __SOUND_HDAUDIO_EXT_H
2#define __SOUND_HDAUDIO_EXT_H
3
4#include <sound/hdaudio.h>
5
6/**
7 * hdac_ext_bus: HDAC extended bus for extended HDA caps
8 *
9 * @bus: hdac bus
10 * @num_streams: streams supported
11 * @ppcap: pp capabilities pointer
12 * @spbcap: SPIB capabilities pointer
13 * @mlcap: MultiLink capabilities pointer
14 * @gtscap: gts capabilities pointer
15 * @hlink_list: link list of HDA links
16 */
17struct hdac_ext_bus {
18	struct hdac_bus bus;
19	int num_streams;
20	int idx;
21
22	void __iomem *ppcap;
23	void __iomem *spbcap;
24	void __iomem *mlcap;
25	void __iomem *gtscap;
26
27	struct list_head hlink_list;
28};
29
30int snd_hdac_ext_bus_init(struct hdac_ext_bus *sbus, struct device *dev,
31		      const struct hdac_bus_ops *ops,
32		      const struct hdac_io_ops *io_ops);
33
34void snd_hdac_ext_bus_exit(struct hdac_ext_bus *sbus);
35int snd_hdac_ext_bus_device_init(struct hdac_ext_bus *sbus, int addr);
36void snd_hdac_ext_bus_device_exit(struct hdac_device *hdev);
37void snd_hdac_ext_bus_device_remove(struct hdac_ext_bus *ebus);
38
39#define ebus_to_hbus(ebus)	(&(ebus)->bus)
40#define hbus_to_ebus(_bus) \
41	container_of(_bus, struct hdac_ext_bus, bus)
42
43#define HDA_CODEC_REV_EXT_ENTRY(_vid, _rev, _name, drv_data) \
44	{ .vendor_id = (_vid), .rev_id = (_rev), .name = (_name), \
45	  .api_version = HDA_DEV_ASOC, \
46	  .driver_data = (unsigned long)(drv_data) }
47#define HDA_CODEC_EXT_ENTRY(_vid, _revid, _name, _drv_data) \
48	HDA_CODEC_REV_EXT_ENTRY(_vid, _revid, _name, _drv_data)
49
50int snd_hdac_ext_bus_parse_capabilities(struct hdac_ext_bus *sbus);
51void snd_hdac_ext_bus_ppcap_enable(struct hdac_ext_bus *chip, bool enable);
52void snd_hdac_ext_bus_ppcap_int_enable(struct hdac_ext_bus *chip, bool enable);
53
54void snd_hdac_ext_stream_spbcap_enable(struct hdac_ext_bus *chip,
55				 bool enable, int index);
56
57int snd_hdac_ext_bus_get_ml_capabilities(struct hdac_ext_bus *bus);
58struct hdac_ext_link *snd_hdac_ext_bus_get_link(struct hdac_ext_bus *bus,
59						const char *codec_name);
60
61enum hdac_ext_stream_type {
62	HDAC_EXT_STREAM_TYPE_COUPLED = 0,
63	HDAC_EXT_STREAM_TYPE_HOST,
64	HDAC_EXT_STREAM_TYPE_LINK
65};
66
67/**
68 * hdac_ext_stream: HDAC extended stream for extended HDA caps
69 *
70 * @hstream: hdac_stream
71 * @pphc_addr: processing pipe host stream pointer
72 * @pplc_addr: processing pipe link stream pointer
73 * @spib_addr: software position in buffers stream pointer
74 * @fifo_addr: software position Max fifos stream pointer
75 * @decoupled: stream host and link is decoupled
76 * @link_locked: link is locked
77 * @link_prepared: link is prepared
78 * link_substream: link substream
79 */
80struct hdac_ext_stream {
81	struct hdac_stream hstream;
82
83	void __iomem *pphc_addr;
84	void __iomem *pplc_addr;
85
86	void __iomem *spib_addr;
87	void __iomem *fifo_addr;
88
89	bool decoupled:1;
90	bool link_locked:1;
91	bool link_prepared;
92
93	struct snd_pcm_substream *link_substream;
94};
95
96#define hdac_stream(s)		(&(s)->hstream)
97#define stream_to_hdac_ext_stream(s) \
98	container_of(s, struct hdac_ext_stream, hstream)
99
100void snd_hdac_ext_stream_init(struct hdac_ext_bus *bus,
101				struct hdac_ext_stream *stream, int idx,
102				int direction, int tag);
103int snd_hdac_ext_stream_init_all(struct hdac_ext_bus *ebus, int start_idx,
104		int num_stream, int dir);
105void snd_hdac_stream_free_all(struct hdac_ext_bus *ebus);
106void snd_hdac_link_free_all(struct hdac_ext_bus *ebus);
107struct hdac_ext_stream *snd_hdac_ext_stream_assign(struct hdac_ext_bus *bus,
108					   struct snd_pcm_substream *substream,
109					   int type);
110void snd_hdac_ext_stream_release(struct hdac_ext_stream *azx_dev, int type);
111void snd_hdac_ext_stream_decouple(struct hdac_ext_bus *bus,
112				struct hdac_ext_stream *azx_dev, bool decouple);
113void snd_hdac_ext_stop_streams(struct hdac_ext_bus *sbus);
114
115int snd_hdac_ext_stream_set_spib(struct hdac_ext_bus *ebus,
116				 struct hdac_ext_stream *stream, u32 value);
117int snd_hdac_ext_stream_get_spbmaxfifo(struct hdac_ext_bus *ebus,
118				 struct hdac_ext_stream *stream);
119
120void snd_hdac_ext_link_stream_start(struct hdac_ext_stream *hstream);
121void snd_hdac_ext_link_stream_clear(struct hdac_ext_stream *hstream);
122void snd_hdac_ext_link_stream_reset(struct hdac_ext_stream *hstream);
123int snd_hdac_ext_link_stream_setup(struct hdac_ext_stream *stream, int fmt);
124
125struct hdac_ext_link {
126	struct hdac_bus *bus;
127	int index;
128	void __iomem *ml_addr; /* link output stream reg pointer */
129	u32 lcaps;   /* link capablities */
130	u16 lsdiid;  /* link sdi identifier */
131	struct list_head list;
132};
133
134int snd_hdac_ext_bus_link_power_up(struct hdac_ext_link *link);
135int snd_hdac_ext_bus_link_power_down(struct hdac_ext_link *link);
136int snd_hdac_ext_bus_link_power_down_all(struct hdac_ext_bus *ebus);
137void snd_hdac_ext_link_set_stream_id(struct hdac_ext_link *link,
138				 int stream);
139void snd_hdac_ext_link_clear_stream_id(struct hdac_ext_link *link,
140				 int stream);
141
142/* update register macro */
143#define snd_hdac_updatel(addr, reg, mask, val)		\
144	writel(((readl(addr + reg) & ~(mask)) | (val)), \
145		addr + reg)
146
147#define snd_hdac_updatew(addr, reg, mask, val)		\
148	writew(((readw(addr + reg) & ~(mask)) | (val)), \
149		addr + reg)
150
151
152struct hdac_ext_device;
153
154/* ops common to all codec drivers */
155struct hdac_ext_codec_ops {
156	int (*build_controls)(struct hdac_ext_device *dev);
157	int (*init)(struct hdac_ext_device *dev);
158	void (*free)(struct hdac_ext_device *dev);
159};
160
161struct hda_dai_map {
162	char *dai_name;
163	hda_nid_t nid;
164	u32	maxbps;
165};
166
167#define HDA_MAX_NIDS 16
168
169/**
170 * struct hdac_ext_device - HDAC Ext device
171 *
172 * @hdac: hdac core device
173 * @nid_list - the dai map which matches the dai-name with the nid
174 * @map_cur_idx - the idx in use in dai_map
175 * @ops - the hda codec ops common to all codec drivers
176 * @pvt_data - private data, for asoc contains asoc codec object
177 */
178struct hdac_ext_device {
179	struct hdac_device hdac;
180	struct hdac_ext_bus *ebus;
181
182	/* soc-dai to nid map */
183	struct hda_dai_map nid_list[HDA_MAX_NIDS];
184	unsigned int map_cur_idx;
185
186	/* codec ops */
187	struct hdac_ext_codec_ops ops;
188
189	void *private_data;
190};
191
192#define to_ehdac_device(dev) (container_of((dev), \
193				 struct hdac_ext_device, hdac))
194/*
195 * HD-audio codec base driver
196 */
197struct hdac_ext_driver {
198	struct hdac_driver hdac;
199
200	int	(*probe)(struct hdac_ext_device *dev);
201	int	(*remove)(struct hdac_ext_device *dev);
202	void	(*shutdown)(struct hdac_ext_device *dev);
203};
204
205int snd_hda_ext_driver_register(struct hdac_ext_driver *drv);
206void snd_hda_ext_driver_unregister(struct hdac_ext_driver *drv);
207
208#define to_ehdac_driver(_drv) container_of(_drv, struct hdac_ext_driver, hdac)
209
210#endif /* __SOUND_HDAUDIO_EXT_H */
211