1 /* SPDX-License-Identifier: GPL-2.0-only */
2 /*
3  *  sst_mfld_platform.h - Intel MID Platform driver header file
4  *
5  *  Copyright (C) 2010 Intel Corp
6  *  Author: Vinod Koul <vinod.koul@intel.com>
7  *  Author: Harsha Priya <priya.harsha@intel.com>
8  *  ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
9  *
10  * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
11  */
12 
13 #ifndef __SST_PLATFORMDRV_H__
14 #define __SST_PLATFORMDRV_H__
15 
16 #include "sst-mfld-dsp.h"
17 #include "sst-atom-controls.h"
18 
19 extern struct sst_device *sst;
20 extern const struct snd_compress_ops sst_platform_compress_ops;
21 
22 #define DRV_NAME "sst"
23 
24 #define SST_MONO		1
25 #define SST_STEREO		2
26 #define SST_MAX_CAP		5
27 
28 #define SST_MAX_BUFFER		(800*1024)
29 #define SST_MIN_BUFFER		(800*1024)
30 #define SST_MIN_PERIOD_BYTES	32
31 #define SST_MAX_PERIOD_BYTES	SST_MAX_BUFFER
32 #define SST_MIN_PERIODS		2
33 #define SST_MAX_PERIODS		(1024*2)
34 #define SST_FIFO_SIZE		0
35 
36 struct pcm_stream_info {
37 	int str_id;
38 	void *arg;
39 	void (*period_elapsed) (void *arg);
40 	unsigned long long buffer_ptr;
41 	unsigned long long pcm_delay;
42 	int sfreq;
43 };
44 
45 enum sst_drv_status {
46 	SST_PLATFORM_INIT = 1,
47 	SST_PLATFORM_STARTED,
48 	SST_PLATFORM_RUNNING,
49 	SST_PLATFORM_PAUSED,
50 	SST_PLATFORM_DROPPED,
51 };
52 
53 enum sst_stream_ops {
54 	STREAM_OPS_PLAYBACK = 0,
55 	STREAM_OPS_CAPTURE,
56 };
57 
58 enum sst_audio_device_type {
59 	SND_SST_DEVICE_HEADSET = 1,
60 	SND_SST_DEVICE_IHF,
61 	SND_SST_DEVICE_VIBRA,
62 	SND_SST_DEVICE_HAPTIC,
63 	SND_SST_DEVICE_CAPTURE,
64 	SND_SST_DEVICE_COMPRESS,
65 };
66 
67 /* PCM Parameters */
68 struct sst_pcm_params {
69 	u16 codec;	/* codec type */
70 	u8 num_chan;	/* 1=Mono, 2=Stereo */
71 	u8 pcm_wd_sz;	/* 16/24 - bit*/
72 	u32 reserved;	/* Bitrate in bits per second */
73 	u32 sfreq;	/* Sampling rate in Hz */
74 	u32 ring_buffer_size;
75 	u32 period_count;	/* period elapsed in samples*/
76 	u32 ring_buffer_addr;
77 };
78 
79 struct sst_stream_params {
80 	u32 result;
81 	u32 stream_id;
82 	u8 codec;
83 	u8 ops;
84 	u8 stream_type;
85 	u8 device_type;
86 	struct sst_pcm_params sparams;
87 };
88 
89 struct sst_compress_cb {
90 	void *param;
91 	void (*compr_cb)(void *param);
92 	void *drain_cb_param;
93 	void (*drain_notify)(void *param);
94 };
95 
96 struct compress_sst_ops {
97 	const char *name;
98 	int (*open)(struct device *dev,
99 		struct snd_sst_params *str_params, struct sst_compress_cb *cb);
100 	int (*stream_start)(struct device *dev, unsigned int str_id);
101 	int (*stream_drop)(struct device *dev, unsigned int str_id);
102 	int (*stream_drain)(struct device *dev, unsigned int str_id);
103 	int (*stream_partial_drain)(struct device *dev,	unsigned int str_id);
104 	int (*stream_pause)(struct device *dev, unsigned int str_id);
105 	int (*stream_pause_release)(struct device *dev,	unsigned int str_id);
106 
107 	int (*tstamp)(struct device *dev, unsigned int str_id,
108 			struct snd_compr_tstamp *tstamp);
109 	int (*ack)(struct device *dev, unsigned int str_id,
110 			unsigned long bytes);
111 	int (*close)(struct device *dev, unsigned int str_id);
112 	int (*get_caps)(struct snd_compr_caps *caps);
113 	int (*get_codec_caps)(struct snd_compr_codec_caps *codec);
114 	int (*set_metadata)(struct device *dev,	unsigned int str_id,
115 			struct snd_compr_metadata *mdata);
116 	int (*power)(struct device *dev, bool state);
117 };
118 
119 struct sst_ops {
120 	int (*open)(struct device *dev, struct snd_sst_params *str_param);
121 	int (*stream_init)(struct device *dev, struct pcm_stream_info *str_info);
122 	int (*stream_start)(struct device *dev, int str_id);
123 	int (*stream_drop)(struct device *dev, int str_id);
124 	int (*stream_pause)(struct device *dev, int str_id);
125 	int (*stream_pause_release)(struct device *dev, int str_id);
126 	int (*stream_read_tstamp)(struct device *dev, struct pcm_stream_info *str_info);
127 	int (*send_byte_stream)(struct device *dev, struct snd_sst_bytes_v2 *bytes);
128 	int (*close)(struct device *dev, unsigned int str_id);
129 	int (*power)(struct device *dev, bool state);
130 };
131 
132 struct sst_runtime_stream {
133 	int     stream_status;
134 	unsigned int id;
135 	size_t bytes_written;
136 	struct pcm_stream_info stream_info;
137 	struct sst_ops *ops;
138 	struct compress_sst_ops *compr_ops;
139 	spinlock_t	status_lock;
140 };
141 
142 struct sst_device {
143 	char *name;
144 	struct device *dev;
145 	struct sst_ops *ops;
146 	struct platform_device *pdev;
147 	struct compress_sst_ops *compr_ops;
148 };
149 
150 struct sst_data;
151 
152 int sst_dsp_init_v2_dpcm(struct snd_soc_component *component);
153 int sst_send_pipe_gains(struct snd_soc_dai *dai, int stream, int mute);
154 int send_ssp_cmd(struct snd_soc_dai *dai, const char *id, bool enable);
155 int sst_handle_vb_timer(struct snd_soc_dai *dai, bool enable);
156 
157 void sst_set_stream_status(struct sst_runtime_stream *stream, int state);
158 int sst_fill_stream_params(void *substream, const struct sst_data *ctx,
159 			   struct snd_sst_params *str_params, bool is_compress);
160 
161 struct sst_algo_int_control_v2 {
162 	struct soc_mixer_control mc;
163 	u16 module_id; /* module identifieer */
164 	u16 pipe_id; /* location info: pipe_id + instance_id */
165 	u16 instance_id;
166 	unsigned int value; /* Value received is stored here */
167 };
168 struct sst_data {
169 	struct platform_device *pdev;
170 	struct sst_platform_data *pdata;
171 	struct snd_sst_bytes_v2 *byte_stream;
172 	struct mutex lock;
173 	struct snd_soc_card *soc_card;
174 	struct sst_cmd_sba_hw_set_ssp ssp_cmd;
175 };
176 int sst_register_dsp(struct sst_device *dev);
177 int sst_unregister_dsp(struct sst_device *dev);
178 #endif
179