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 void snd_hdac_ext_stream_spbcap_enable(struct hdac_bus *chip,
27 				 bool enable, int index);
28 
29 int snd_hdac_ext_bus_get_ml_capabilities(struct hdac_bus *bus);
30 struct hdac_ext_link *snd_hdac_ext_bus_link_at(struct hdac_bus *bus, int addr);
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 int snd_hdac_ext_stream_init_all(struct hdac_bus *bus, int start_idx,
81 				 int num_stream, int dir);
82 void snd_hdac_ext_stream_free_all(struct hdac_bus *bus);
83 void snd_hdac_link_free_all(struct hdac_bus *bus);
84 struct hdac_ext_stream *snd_hdac_ext_stream_assign(struct hdac_bus *bus,
85 					   struct snd_pcm_substream *substream,
86 					   int type);
87 void snd_hdac_ext_stream_release(struct hdac_ext_stream *hext_stream, int type);
88 void snd_hdac_ext_stream_decouple_locked(struct hdac_bus *bus,
89 					 struct hdac_ext_stream *hext_stream, bool decouple);
90 void snd_hdac_ext_stream_decouple(struct hdac_bus *bus,
91 				struct hdac_ext_stream *azx_dev, bool decouple);
92 
93 int snd_hdac_ext_stream_set_spib(struct hdac_bus *bus,
94 				 struct hdac_ext_stream *hext_stream, u32 value);
95 int snd_hdac_ext_stream_get_spbmaxfifo(struct hdac_bus *bus,
96 				       struct hdac_ext_stream *hext_stream);
97 void snd_hdac_ext_stream_drsm_enable(struct hdac_bus *bus,
98 				bool enable, int index);
99 int snd_hdac_ext_stream_set_dpibr(struct hdac_bus *bus,
100 				struct hdac_ext_stream *hext_stream, u32 value);
101 int snd_hdac_ext_stream_set_lpib(struct hdac_ext_stream *hext_stream, u32 value);
102 
103 void snd_hdac_ext_link_stream_start(struct hdac_ext_stream *hext_stream);
104 void snd_hdac_ext_link_stream_clear(struct hdac_ext_stream *hext_stream);
105 void snd_hdac_ext_link_stream_reset(struct hdac_ext_stream *hext_stream);
106 int snd_hdac_ext_link_stream_setup(struct hdac_ext_stream *hext_stream, int fmt);
107 
108 struct hdac_ext_link {
109 	struct hdac_bus *bus;
110 	int index;
111 	void __iomem *ml_addr; /* link output stream reg pointer */
112 	u32 lcaps;   /* link capablities */
113 	u16 lsdiid;  /* link sdi identifier */
114 
115 	int ref_count;
116 
117 	struct list_head list;
118 };
119 
120 int snd_hdac_ext_bus_link_power_up(struct hdac_ext_link *link);
121 int snd_hdac_ext_bus_link_power_down(struct hdac_ext_link *link);
122 int snd_hdac_ext_bus_link_power_up_all(struct hdac_bus *bus);
123 int snd_hdac_ext_bus_link_power_down_all(struct hdac_bus *bus);
124 void snd_hdac_ext_link_set_stream_id(struct hdac_ext_link *link,
125 				 int stream);
126 void snd_hdac_ext_link_clear_stream_id(struct hdac_ext_link *link,
127 				 int stream);
128 
129 int snd_hdac_ext_bus_link_get(struct hdac_bus *bus, struct hdac_ext_link *link);
130 int snd_hdac_ext_bus_link_put(struct hdac_bus *bus, struct hdac_ext_link *link);
131 
132 void snd_hdac_ext_bus_link_power(struct hdac_device *codec, bool enable);
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 #define snd_hdac_adsp_writeb(chip, reg, value) \
144 	snd_hdac_reg_writeb(chip, (chip)->dsp_ba + (reg), value)
145 #define snd_hdac_adsp_readb(chip, reg) \
146 	snd_hdac_reg_readb(chip, (chip)->dsp_ba + (reg))
147 #define snd_hdac_adsp_writew(chip, reg, value) \
148 	snd_hdac_reg_writew(chip, (chip)->dsp_ba + (reg), value)
149 #define snd_hdac_adsp_readw(chip, reg) \
150 	snd_hdac_reg_readw(chip, (chip)->dsp_ba + (reg))
151 #define snd_hdac_adsp_writel(chip, reg, value) \
152 	snd_hdac_reg_writel(chip, (chip)->dsp_ba + (reg), value)
153 #define snd_hdac_adsp_readl(chip, reg) \
154 	snd_hdac_reg_readl(chip, (chip)->dsp_ba + (reg))
155 #define snd_hdac_adsp_writeq(chip, reg, value) \
156 	snd_hdac_reg_writeq(chip, (chip)->dsp_ba + (reg), value)
157 #define snd_hdac_adsp_readq(chip, reg) \
158 	snd_hdac_reg_readq(chip, (chip)->dsp_ba + (reg))
159 
160 #define snd_hdac_adsp_updateb(chip, reg, mask, val) \
161 	snd_hdac_adsp_writeb(chip, reg, \
162 			(snd_hdac_adsp_readb(chip, reg) & ~(mask)) | (val))
163 #define snd_hdac_adsp_updatew(chip, reg, mask, val) \
164 	snd_hdac_adsp_writew(chip, reg, \
165 			(snd_hdac_adsp_readw(chip, reg) & ~(mask)) | (val))
166 #define snd_hdac_adsp_updatel(chip, reg, mask, val) \
167 	snd_hdac_adsp_writel(chip, reg, \
168 			(snd_hdac_adsp_readl(chip, reg) & ~(mask)) | (val))
169 #define snd_hdac_adsp_updateq(chip, reg, mask, val) \
170 	snd_hdac_adsp_writeq(chip, reg, \
171 			(snd_hdac_adsp_readq(chip, reg) & ~(mask)) | (val))
172 
173 #define snd_hdac_adsp_readb_poll(chip, reg, val, cond, delay_us, timeout_us) \
174 	readb_poll_timeout((chip)->dsp_ba + (reg), val, cond, \
175 			   delay_us, timeout_us)
176 #define snd_hdac_adsp_readw_poll(chip, reg, val, cond, delay_us, timeout_us) \
177 	readw_poll_timeout((chip)->dsp_ba + (reg), val, cond, \
178 			   delay_us, timeout_us)
179 #define snd_hdac_adsp_readl_poll(chip, reg, val, cond, delay_us, timeout_us) \
180 	readl_poll_timeout((chip)->dsp_ba + (reg), val, cond, \
181 			   delay_us, timeout_us)
182 #define snd_hdac_adsp_readq_poll(chip, reg, val, cond, delay_us, timeout_us) \
183 	readq_poll_timeout((chip)->dsp_ba + (reg), val, cond, \
184 			   delay_us, timeout_us)
185 
186 struct hdac_ext_device;
187 
188 /* ops common to all codec drivers */
189 struct hdac_ext_codec_ops {
190 	int (*build_controls)(struct hdac_ext_device *dev);
191 	int (*init)(struct hdac_ext_device *dev);
192 	void (*free)(struct hdac_ext_device *dev);
193 };
194 
195 struct hda_dai_map {
196 	char *dai_name;
197 	hda_nid_t nid;
198 	u32	maxbps;
199 };
200 
201 struct hdac_ext_dma_params {
202 	u32 format;
203 	u8 stream_tag;
204 };
205 
206 int snd_hda_ext_driver_register(struct hdac_driver *drv);
207 void snd_hda_ext_driver_unregister(struct hdac_driver *drv);
208 
209 #endif /* __SOUND_HDAUDIO_EXT_H */
210