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 int snd_hdac_ext_bus_device_init(struct hdac_bus *bus, int addr,
15 				struct hdac_device *hdev, int type);
16 void snd_hdac_ext_bus_device_exit(struct hdac_device *hdev);
17 void snd_hdac_ext_bus_device_remove(struct hdac_bus *bus);
18 
19 #define HDA_CODEC_REV_EXT_ENTRY(_vid, _rev, _name, drv_data) \
20 	{ .vendor_id = (_vid), .rev_id = (_rev), .name = (_name), \
21 	  .api_version = HDA_DEV_ASOC, \
22 	  .driver_data = (unsigned long)(drv_data) }
23 #define HDA_CODEC_EXT_ENTRY(_vid, _revid, _name, _drv_data) \
24 	HDA_CODEC_REV_EXT_ENTRY(_vid, _revid, _name, _drv_data)
25 
26 void snd_hdac_ext_bus_ppcap_enable(struct hdac_bus *chip, bool enable);
27 void snd_hdac_ext_bus_ppcap_int_enable(struct hdac_bus *chip, bool enable);
28 
29 void snd_hdac_ext_stream_spbcap_enable(struct hdac_bus *chip,
30 				 bool enable, int index);
31 
32 int snd_hdac_ext_bus_get_ml_capabilities(struct hdac_bus *bus);
33 struct hdac_ext_link *snd_hdac_ext_bus_link_at(struct hdac_bus *bus, int addr);
34 struct hdac_ext_link *snd_hdac_ext_bus_get_link(struct hdac_bus *bus,
35 						const char *codec_name);
36 
37 enum hdac_ext_stream_type {
38 	HDAC_EXT_STREAM_TYPE_COUPLED = 0,
39 	HDAC_EXT_STREAM_TYPE_HOST,
40 	HDAC_EXT_STREAM_TYPE_LINK
41 };
42 
43 /**
44  * hdac_ext_stream: HDAC extended stream for extended HDA caps
45  *
46  * @hstream: hdac_stream
47  * @pphc_addr: processing pipe host stream pointer
48  * @pplc_addr: processing pipe link stream pointer
49  * @spib_addr: software position in buffers stream pointer
50  * @fifo_addr: software position Max fifos stream pointer
51  * @dpibr_addr: DMA position in buffer resume pointer
52  * @dpib: DMA position in buffer
53  * @lpib: Linear position in buffer
54  * @decoupled: stream host and link is decoupled
55  * @link_locked: link is locked
56  * @link_prepared: link is prepared
57  * @link_substream: link substream
58  */
59 struct hdac_ext_stream {
60 	struct hdac_stream hstream;
61 
62 	void __iomem *pphc_addr;
63 	void __iomem *pplc_addr;
64 
65 	void __iomem *spib_addr;
66 	void __iomem *fifo_addr;
67 
68 	void __iomem *dpibr_addr;
69 
70 	u32 dpib;
71 	u32 lpib;
72 	bool decoupled:1;
73 	bool link_locked:1;
74 	bool link_prepared;
75 
76 	struct snd_pcm_substream *link_substream;
77 };
78 
79 #define hdac_stream(s)		(&(s)->hstream)
80 #define stream_to_hdac_ext_stream(s) \
81 	container_of(s, struct hdac_ext_stream, hstream)
82 
83 void snd_hdac_ext_stream_init(struct hdac_bus *bus,
84 			      struct hdac_ext_stream *hext_stream, int idx,
85 			      int direction, int tag);
86 int snd_hdac_ext_stream_init_all(struct hdac_bus *bus, int start_idx,
87 				 int num_stream, int dir);
88 void snd_hdac_stream_free_all(struct hdac_bus *bus);
89 void snd_hdac_link_free_all(struct hdac_bus *bus);
90 struct hdac_ext_stream *snd_hdac_ext_stream_assign(struct hdac_bus *bus,
91 					   struct snd_pcm_substream *substream,
92 					   int type);
93 void snd_hdac_ext_stream_release(struct hdac_ext_stream *hext_stream, int type);
94 void snd_hdac_ext_stream_decouple_locked(struct hdac_bus *bus,
95 					 struct hdac_ext_stream *hext_stream, bool decouple);
96 void snd_hdac_ext_stream_decouple(struct hdac_bus *bus,
97 				struct hdac_ext_stream *azx_dev, bool decouple);
98 
99 int snd_hdac_ext_stream_set_spib(struct hdac_bus *bus,
100 				 struct hdac_ext_stream *hext_stream, u32 value);
101 int snd_hdac_ext_stream_get_spbmaxfifo(struct hdac_bus *bus,
102 				       struct hdac_ext_stream *hext_stream);
103 void snd_hdac_ext_stream_drsm_enable(struct hdac_bus *bus,
104 				bool enable, int index);
105 int snd_hdac_ext_stream_set_dpibr(struct hdac_bus *bus,
106 				struct hdac_ext_stream *hext_stream, u32 value);
107 int snd_hdac_ext_stream_set_lpib(struct hdac_ext_stream *hext_stream, u32 value);
108 
109 void snd_hdac_ext_link_stream_start(struct hdac_ext_stream *hext_stream);
110 void snd_hdac_ext_link_stream_clear(struct hdac_ext_stream *hext_stream);
111 void snd_hdac_ext_link_stream_reset(struct hdac_ext_stream *hext_stream);
112 int snd_hdac_ext_link_stream_setup(struct hdac_ext_stream *hext_stream, int fmt);
113 
114 struct hdac_ext_link {
115 	struct hdac_bus *bus;
116 	int index;
117 	void __iomem *ml_addr; /* link output stream reg pointer */
118 	u32 lcaps;   /* link capablities */
119 	u16 lsdiid;  /* link sdi identifier */
120 
121 	int ref_count;
122 
123 	struct list_head list;
124 };
125 
126 int snd_hdac_ext_bus_link_power_up(struct hdac_ext_link *link);
127 int snd_hdac_ext_bus_link_power_down(struct hdac_ext_link *link);
128 int snd_hdac_ext_bus_link_power_up_all(struct hdac_bus *bus);
129 int snd_hdac_ext_bus_link_power_down_all(struct hdac_bus *bus);
130 void snd_hdac_ext_link_set_stream_id(struct hdac_ext_link *link,
131 				 int stream);
132 void snd_hdac_ext_link_clear_stream_id(struct hdac_ext_link *link,
133 				 int stream);
134 
135 int snd_hdac_ext_bus_link_get(struct hdac_bus *bus, struct hdac_ext_link *link);
136 int snd_hdac_ext_bus_link_put(struct hdac_bus *bus, struct hdac_ext_link *link);
137 
138 void snd_hdac_ext_bus_link_power(struct hdac_device *codec, bool enable);
139 
140 /* update register macro */
141 #define snd_hdac_updatel(addr, reg, mask, val)		\
142 	writel(((readl(addr + reg) & ~(mask)) | (val)), \
143 		addr + reg)
144 
145 #define snd_hdac_updatew(addr, reg, mask, val)		\
146 	writew(((readw(addr + reg) & ~(mask)) | (val)), \
147 		addr + reg)
148 
149 #define snd_hdac_adsp_writeb(chip, reg, value) \
150 	snd_hdac_reg_writeb(chip, (chip)->dsp_ba + (reg), value)
151 #define snd_hdac_adsp_readb(chip, reg) \
152 	snd_hdac_reg_readb(chip, (chip)->dsp_ba + (reg))
153 #define snd_hdac_adsp_writew(chip, reg, value) \
154 	snd_hdac_reg_writew(chip, (chip)->dsp_ba + (reg), value)
155 #define snd_hdac_adsp_readw(chip, reg) \
156 	snd_hdac_reg_readw(chip, (chip)->dsp_ba + (reg))
157 #define snd_hdac_adsp_writel(chip, reg, value) \
158 	snd_hdac_reg_writel(chip, (chip)->dsp_ba + (reg), value)
159 #define snd_hdac_adsp_readl(chip, reg) \
160 	snd_hdac_reg_readl(chip, (chip)->dsp_ba + (reg))
161 #define snd_hdac_adsp_writeq(chip, reg, value) \
162 	snd_hdac_reg_writeq(chip, (chip)->dsp_ba + (reg), value)
163 #define snd_hdac_adsp_readq(chip, reg) \
164 	snd_hdac_reg_readq(chip, (chip)->dsp_ba + (reg))
165 
166 #define snd_hdac_adsp_updateb(chip, reg, mask, val) \
167 	snd_hdac_adsp_writeb(chip, reg, \
168 			(snd_hdac_adsp_readb(chip, reg) & ~(mask)) | (val))
169 #define snd_hdac_adsp_updatew(chip, reg, mask, val) \
170 	snd_hdac_adsp_writew(chip, reg, \
171 			(snd_hdac_adsp_readw(chip, reg) & ~(mask)) | (val))
172 #define snd_hdac_adsp_updatel(chip, reg, mask, val) \
173 	snd_hdac_adsp_writel(chip, reg, \
174 			(snd_hdac_adsp_readl(chip, reg) & ~(mask)) | (val))
175 #define snd_hdac_adsp_updateq(chip, reg, mask, val) \
176 	snd_hdac_adsp_writeq(chip, reg, \
177 			(snd_hdac_adsp_readq(chip, reg) & ~(mask)) | (val))
178 
179 #define snd_hdac_adsp_readb_poll(chip, reg, val, cond, delay_us, timeout_us) \
180 	readb_poll_timeout((chip)->dsp_ba + (reg), val, cond, \
181 			   delay_us, timeout_us)
182 #define snd_hdac_adsp_readw_poll(chip, reg, val, cond, delay_us, timeout_us) \
183 	readw_poll_timeout((chip)->dsp_ba + (reg), val, cond, \
184 			   delay_us, timeout_us)
185 #define snd_hdac_adsp_readl_poll(chip, reg, val, cond, delay_us, timeout_us) \
186 	readl_poll_timeout((chip)->dsp_ba + (reg), val, cond, \
187 			   delay_us, timeout_us)
188 #define snd_hdac_adsp_readq_poll(chip, reg, val, cond, delay_us, timeout_us) \
189 	readq_poll_timeout((chip)->dsp_ba + (reg), val, cond, \
190 			   delay_us, timeout_us)
191 #define snd_hdac_stream_readb_poll(strm, reg, val, cond, delay_us, timeout_us) \
192 	readb_poll_timeout((strm)->sd_addr + AZX_REG_ ## reg, val, cond, \
193 			   delay_us, timeout_us)
194 #define snd_hdac_stream_readl_poll(strm, reg, val, cond, delay_us, timeout_us) \
195 	readl_poll_timeout((strm)->sd_addr + AZX_REG_ ## reg, val, cond, \
196 			   delay_us, timeout_us)
197 
198 struct hdac_ext_device;
199 
200 /* ops common to all codec drivers */
201 struct hdac_ext_codec_ops {
202 	int (*build_controls)(struct hdac_ext_device *dev);
203 	int (*init)(struct hdac_ext_device *dev);
204 	void (*free)(struct hdac_ext_device *dev);
205 };
206 
207 struct hda_dai_map {
208 	char *dai_name;
209 	hda_nid_t nid;
210 	u32	maxbps;
211 };
212 
213 struct hdac_ext_dma_params {
214 	u32 format;
215 	u8 stream_tag;
216 };
217 
218 int snd_hda_ext_driver_register(struct hdac_driver *drv);
219 void snd_hda_ext_driver_unregister(struct hdac_driver *drv);
220 
221 #endif /* __SOUND_HDAUDIO_EXT_H */
222