1 /*
2  *  sst_mfld_platform.h - Intel MID Platform driver header file
3  *
4  *  Copyright (C) 2010 Intel Corp
5  *  Author: Vinod Koul <vinod.koul@intel.com>
6  *  Author: Harsha Priya <priya.harsha@intel.com>
7  *  ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
8  *
9  *  This program is free software; you can redistribute it and/or modify
10  *  it under the terms of the GNU General Public License as published by
11  *  the Free Software Foundation; version 2 of the License.
12  *
13  *  This program is distributed in the hope that it will be useful, but
14  *  WITHOUT ANY WARRANTY; without even the implied warranty of
15  *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
16  *  General Public License for more details.
17  *
18  * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
19  */
20 
21 #ifndef __SST_PLATFORMDRV_H__
22 #define __SST_PLATFORMDRV_H__
23 
24 #include "sst-mfld-dsp.h"
25 #include "sst-atom-controls.h"
26 
27 extern struct sst_device *sst;
28 extern struct snd_compr_ops sst_platform_compr_ops;
29 
30 #define SST_MONO		1
31 #define SST_STEREO		2
32 #define SST_MAX_CAP		5
33 
34 #define SST_MAX_BUFFER		(800*1024)
35 #define SST_MIN_BUFFER		(800*1024)
36 #define SST_MIN_PERIOD_BYTES	32
37 #define SST_MAX_PERIOD_BYTES	SST_MAX_BUFFER
38 #define SST_MIN_PERIODS		2
39 #define SST_MAX_PERIODS		(1024*2)
40 #define SST_FIFO_SIZE		0
41 
42 struct pcm_stream_info {
43 	int str_id;
44 	void *arg;
45 	void (*period_elapsed) (void *arg);
46 	unsigned long long buffer_ptr;
47 	unsigned long long pcm_delay;
48 	int sfreq;
49 };
50 
51 enum sst_drv_status {
52 	SST_PLATFORM_INIT = 1,
53 	SST_PLATFORM_STARTED,
54 	SST_PLATFORM_RUNNING,
55 	SST_PLATFORM_PAUSED,
56 	SST_PLATFORM_DROPPED,
57 };
58 
59 enum sst_stream_ops {
60 	STREAM_OPS_PLAYBACK = 0,
61 	STREAM_OPS_CAPTURE,
62 };
63 
64 enum sst_audio_device_type {
65 	SND_SST_DEVICE_HEADSET = 1,
66 	SND_SST_DEVICE_IHF,
67 	SND_SST_DEVICE_VIBRA,
68 	SND_SST_DEVICE_HAPTIC,
69 	SND_SST_DEVICE_CAPTURE,
70 	SND_SST_DEVICE_COMPRESS,
71 };
72 
73 /* PCM Parameters */
74 struct sst_pcm_params {
75 	u16 codec;	/* codec type */
76 	u8 num_chan;	/* 1=Mono, 2=Stereo */
77 	u8 pcm_wd_sz;	/* 16/24 - bit*/
78 	u32 reserved;	/* Bitrate in bits per second */
79 	u32 sfreq;	/* Sampling rate in Hz */
80 	u32 ring_buffer_size;
81 	u32 period_count;	/* period elapsed in samples*/
82 	u32 ring_buffer_addr;
83 };
84 
85 struct sst_stream_params {
86 	u32 result;
87 	u32 stream_id;
88 	u8 codec;
89 	u8 ops;
90 	u8 stream_type;
91 	u8 device_type;
92 	struct sst_pcm_params sparams;
93 };
94 
95 struct sst_compress_cb {
96 	void *param;
97 	void (*compr_cb)(void *param);
98 	void *drain_cb_param;
99 	void (*drain_notify)(void *param);
100 };
101 
102 struct compress_sst_ops {
103 	const char *name;
104 	int (*open)(struct device *dev,
105 		struct snd_sst_params *str_params, struct sst_compress_cb *cb);
106 	int (*stream_start)(struct device *dev, unsigned int str_id);
107 	int (*stream_drop)(struct device *dev, unsigned int str_id);
108 	int (*stream_drain)(struct device *dev, unsigned int str_id);
109 	int (*stream_partial_drain)(struct device *dev,	unsigned int str_id);
110 	int (*stream_pause)(struct device *dev, unsigned int str_id);
111 	int (*stream_pause_release)(struct device *dev,	unsigned int str_id);
112 
113 	int (*tstamp)(struct device *dev, unsigned int str_id,
114 			struct snd_compr_tstamp *tstamp);
115 	int (*ack)(struct device *dev, unsigned int str_id,
116 			unsigned long bytes);
117 	int (*close)(struct device *dev, unsigned int str_id);
118 	int (*get_caps)(struct snd_compr_caps *caps);
119 	int (*get_codec_caps)(struct snd_compr_codec_caps *codec);
120 	int (*set_metadata)(struct device *dev,	unsigned int str_id,
121 			struct snd_compr_metadata *mdata);
122 	int (*power)(struct device *dev, bool state);
123 };
124 
125 struct sst_ops {
126 	int (*open)(struct device *dev, struct snd_sst_params *str_param);
127 	int (*stream_init)(struct device *dev, struct pcm_stream_info *str_info);
128 	int (*stream_start)(struct device *dev, int str_id);
129 	int (*stream_drop)(struct device *dev, int str_id);
130 	int (*stream_pause)(struct device *dev, int str_id);
131 	int (*stream_pause_release)(struct device *dev, int str_id);
132 	int (*stream_read_tstamp)(struct device *dev, struct pcm_stream_info *str_info);
133 	int (*send_byte_stream)(struct device *dev, struct snd_sst_bytes_v2 *bytes);
134 	int (*close)(struct device *dev, unsigned int str_id);
135 	int (*power)(struct device *dev, bool state);
136 };
137 
138 struct sst_runtime_stream {
139 	int     stream_status;
140 	unsigned int id;
141 	size_t bytes_written;
142 	struct pcm_stream_info stream_info;
143 	struct sst_ops *ops;
144 	struct compress_sst_ops *compr_ops;
145 	spinlock_t	status_lock;
146 };
147 
148 struct sst_device {
149 	char *name;
150 	struct device *dev;
151 	struct sst_ops *ops;
152 	struct platform_device *pdev;
153 	struct compress_sst_ops *compr_ops;
154 };
155 
156 struct sst_data;
157 
158 int sst_dsp_init_v2_dpcm(struct snd_soc_platform *platform);
159 int sst_send_pipe_gains(struct snd_soc_dai *dai, int stream, int mute);
160 int send_ssp_cmd(struct snd_soc_dai *dai, const char *id, bool enable);
161 int sst_handle_vb_timer(struct snd_soc_dai *dai, bool enable);
162 
163 void sst_set_stream_status(struct sst_runtime_stream *stream, int state);
164 int sst_fill_stream_params(void *substream, const struct sst_data *ctx,
165 			   struct snd_sst_params *str_params, bool is_compress);
166 
167 struct sst_algo_int_control_v2 {
168 	struct soc_mixer_control mc;
169 	u16 module_id; /* module identifieer */
170 	u16 pipe_id; /* location info: pipe_id + instance_id */
171 	u16 instance_id;
172 	unsigned int value; /* Value received is stored here */
173 };
174 struct sst_data {
175 	struct platform_device *pdev;
176 	struct sst_platform_data *pdata;
177 	struct snd_sst_bytes_v2 *byte_stream;
178 	struct mutex lock;
179 	struct snd_soc_card *soc_card;
180 	struct sst_cmd_sba_hw_set_ssp ssp_cmd;
181 };
182 int sst_register_dsp(struct sst_device *sst);
183 int sst_unregister_dsp(struct sst_device *sst);
184 #endif
185