1 /* SPDX-License-Identifier: GPL-2.0 */
2 #ifndef __SOUND_HDAUDIO_EXT_H
3 #define __SOUND_HDAUDIO_EXT_H
4 
5 #include <linux/io-64-nonatomic-lo-hi.h>
6 #include <linux/iopoll.h>
7 #include <sound/hdaudio.h>
8 
9 int snd_hdac_ext_bus_init(struct hdac_bus *bus, struct device *dev,
10 		      const struct hdac_bus_ops *ops,
11 		      const struct hdac_ext_bus_ops *ext_ops);
12 
13 void snd_hdac_ext_bus_exit(struct hdac_bus *bus);
14 void snd_hdac_ext_bus_device_remove(struct hdac_bus *bus);
15 
16 #define HDA_CODEC_REV_EXT_ENTRY(_vid, _rev, _name, drv_data) \
17 	{ .vendor_id = (_vid), .rev_id = (_rev), .name = (_name), \
18 	  .api_version = HDA_DEV_ASOC, \
19 	  .driver_data = (unsigned long)(drv_data) }
20 #define HDA_CODEC_EXT_ENTRY(_vid, _revid, _name, _drv_data) \
21 	HDA_CODEC_REV_EXT_ENTRY(_vid, _revid, _name, _drv_data)
22 
23 void snd_hdac_ext_bus_ppcap_enable(struct hdac_bus *chip, bool enable);
24 void snd_hdac_ext_bus_ppcap_int_enable(struct hdac_bus *chip, bool enable);
25 
26 int snd_hdac_ext_bus_get_ml_capabilities(struct hdac_bus *bus);
27 struct hdac_ext_link *snd_hdac_ext_bus_get_hlink_by_addr(struct hdac_bus *bus, int addr);
28 struct hdac_ext_link *snd_hdac_ext_bus_get_hlink_by_name(struct hdac_bus *bus,
29 							 const char *codec_name);
30 
31 enum hdac_ext_stream_type {
32 	HDAC_EXT_STREAM_TYPE_COUPLED = 0,
33 	HDAC_EXT_STREAM_TYPE_HOST,
34 	HDAC_EXT_STREAM_TYPE_LINK
35 };
36 
37 /**
38  * hdac_ext_stream: HDAC extended stream for extended HDA caps
39  *
40  * @hstream: hdac_stream
41  * @pphc_addr: processing pipe host stream pointer
42  * @pplc_addr: processing pipe link stream pointer
43  * @decoupled: stream host and link is decoupled
44  * @link_locked: link is locked
45  * @link_prepared: link is prepared
46  * @link_substream: link substream
47  */
48 struct hdac_ext_stream {
49 	struct hdac_stream hstream;
50 
51 	void __iomem *pphc_addr;
52 	void __iomem *pplc_addr;
53 
54 	u32 pphcllpl;
55 	u32 pphcllpu;
56 	u32 pphcldpl;
57 	u32 pphcldpu;
58 
59 	bool decoupled:1;
60 	bool link_locked:1;
61 	bool link_prepared;
62 
63 	struct snd_pcm_substream *link_substream;
64 };
65 
66 #define hdac_stream(s)		(&(s)->hstream)
67 #define stream_to_hdac_ext_stream(s) \
68 	container_of(s, struct hdac_ext_stream, hstream)
69 
70 int snd_hdac_ext_stream_init_all(struct hdac_bus *bus, int start_idx,
71 				 int num_stream, int dir);
72 void snd_hdac_ext_stream_free_all(struct hdac_bus *bus);
73 void snd_hdac_ext_link_free_all(struct hdac_bus *bus);
74 struct hdac_ext_stream *snd_hdac_ext_stream_assign(struct hdac_bus *bus,
75 					   struct snd_pcm_substream *substream,
76 					   int type);
77 void snd_hdac_ext_stream_release(struct hdac_ext_stream *hext_stream, int type);
78 struct hdac_ext_stream *snd_hdac_ext_cstream_assign(struct hdac_bus *bus,
79 						    struct snd_compr_stream *cstream);
80 void snd_hdac_ext_stream_decouple_locked(struct hdac_bus *bus,
81 					 struct hdac_ext_stream *hext_stream, bool decouple);
82 void snd_hdac_ext_stream_decouple(struct hdac_bus *bus,
83 				struct hdac_ext_stream *azx_dev, bool decouple);
84 
85 void snd_hdac_ext_stream_start(struct hdac_ext_stream *hext_stream);
86 void snd_hdac_ext_stream_clear(struct hdac_ext_stream *hext_stream);
87 void snd_hdac_ext_stream_reset(struct hdac_ext_stream *hext_stream);
88 int snd_hdac_ext_stream_setup(struct hdac_ext_stream *hext_stream, int fmt);
89 
90 struct hdac_ext_link {
91 	struct hdac_bus *bus;
92 	int index;
93 	void __iomem *ml_addr; /* link output stream reg pointer */
94 	u32 lcaps;   /* link capablities */
95 	u16 lsdiid;  /* link sdi identifier */
96 
97 	int ref_count;
98 
99 	struct list_head list;
100 };
101 
102 int snd_hdac_ext_bus_link_power_up(struct hdac_ext_link *hlink);
103 int snd_hdac_ext_bus_link_power_down(struct hdac_ext_link *hlink);
104 int snd_hdac_ext_bus_link_power_up_all(struct hdac_bus *bus);
105 int snd_hdac_ext_bus_link_power_down_all(struct hdac_bus *bus);
106 void snd_hdac_ext_bus_link_set_stream_id(struct hdac_ext_link *hlink,
107 					 int stream);
108 void snd_hdac_ext_bus_link_clear_stream_id(struct hdac_ext_link *hlink,
109 					   int stream);
110 
111 int snd_hdac_ext_bus_link_get(struct hdac_bus *bus, struct hdac_ext_link *hlink);
112 int snd_hdac_ext_bus_link_put(struct hdac_bus *bus, struct hdac_ext_link *hlink);
113 
114 void snd_hdac_ext_bus_link_power(struct hdac_device *codec, bool enable);
115 
116 #define snd_hdac_adsp_writeb(chip, reg, value) \
117 	snd_hdac_reg_writeb(chip, (chip)->dsp_ba + (reg), value)
118 #define snd_hdac_adsp_readb(chip, reg) \
119 	snd_hdac_reg_readb(chip, (chip)->dsp_ba + (reg))
120 #define snd_hdac_adsp_writew(chip, reg, value) \
121 	snd_hdac_reg_writew(chip, (chip)->dsp_ba + (reg), value)
122 #define snd_hdac_adsp_readw(chip, reg) \
123 	snd_hdac_reg_readw(chip, (chip)->dsp_ba + (reg))
124 #define snd_hdac_adsp_writel(chip, reg, value) \
125 	snd_hdac_reg_writel(chip, (chip)->dsp_ba + (reg), value)
126 #define snd_hdac_adsp_readl(chip, reg) \
127 	snd_hdac_reg_readl(chip, (chip)->dsp_ba + (reg))
128 #define snd_hdac_adsp_writeq(chip, reg, value) \
129 	snd_hdac_reg_writeq(chip, (chip)->dsp_ba + (reg), value)
130 #define snd_hdac_adsp_readq(chip, reg) \
131 	snd_hdac_reg_readq(chip, (chip)->dsp_ba + (reg))
132 
133 #define snd_hdac_adsp_updateb(chip, reg, mask, val) \
134 	snd_hdac_adsp_writeb(chip, reg, \
135 			(snd_hdac_adsp_readb(chip, reg) & ~(mask)) | (val))
136 #define snd_hdac_adsp_updatew(chip, reg, mask, val) \
137 	snd_hdac_adsp_writew(chip, reg, \
138 			(snd_hdac_adsp_readw(chip, reg) & ~(mask)) | (val))
139 #define snd_hdac_adsp_updatel(chip, reg, mask, val) \
140 	snd_hdac_adsp_writel(chip, reg, \
141 			(snd_hdac_adsp_readl(chip, reg) & ~(mask)) | (val))
142 #define snd_hdac_adsp_updateq(chip, reg, mask, val) \
143 	snd_hdac_adsp_writeq(chip, reg, \
144 			(snd_hdac_adsp_readq(chip, reg) & ~(mask)) | (val))
145 
146 #define snd_hdac_adsp_readb_poll(chip, reg, val, cond, delay_us, timeout_us) \
147 	readb_poll_timeout((chip)->dsp_ba + (reg), val, cond, \
148 			   delay_us, timeout_us)
149 #define snd_hdac_adsp_readw_poll(chip, reg, val, cond, delay_us, timeout_us) \
150 	readw_poll_timeout((chip)->dsp_ba + (reg), val, cond, \
151 			   delay_us, timeout_us)
152 #define snd_hdac_adsp_readl_poll(chip, reg, val, cond, delay_us, timeout_us) \
153 	readl_poll_timeout((chip)->dsp_ba + (reg), val, cond, \
154 			   delay_us, timeout_us)
155 #define snd_hdac_adsp_readq_poll(chip, reg, val, cond, delay_us, timeout_us) \
156 	readq_poll_timeout((chip)->dsp_ba + (reg), val, cond, \
157 			   delay_us, timeout_us)
158 
159 struct hdac_ext_device;
160 
161 /* ops common to all codec drivers */
162 struct hdac_ext_codec_ops {
163 	int (*build_controls)(struct hdac_ext_device *dev);
164 	int (*init)(struct hdac_ext_device *dev);
165 	void (*free)(struct hdac_ext_device *dev);
166 };
167 
168 struct hda_dai_map {
169 	char *dai_name;
170 	hda_nid_t nid;
171 	u32	maxbps;
172 };
173 
174 struct hdac_ext_dma_params {
175 	u32 format;
176 	u8 stream_tag;
177 };
178 
179 int snd_hda_ext_driver_register(struct hdac_driver *drv);
180 void snd_hda_ext_driver_unregister(struct hdac_driver *drv);
181 
182 #endif /* __SOUND_HDAUDIO_EXT_H */
183