1 /* SPDX-License-Identifier: GPL-2.0-or-later */
2 /*
3  * Driver for Digigram miXart soundcards
4  *
5  * main header file
6  *
7  * Copyright (c) 2003 by Digigram <alsa@digigram.com>
8  */
9 
10 #ifndef __SOUND_MIXART_H
11 #define __SOUND_MIXART_H
12 
13 #include <linux/interrupt.h>
14 #include <linux/mutex.h>
15 #include <sound/pcm.h>
16 
17 #define MIXART_DRIVER_VERSION	0x000100	/* 0.1.0 */
18 
19 
20 /*
21  */
22 
23 struct mixart_uid {
24 	u32 object_id;
25 	u32 desc;
26 };
27 
28 struct mem_area {
29 	unsigned long phys;
30 	void __iomem *virt;
31 	struct resource *res;
32 };
33 
34 
35 struct mixart_route {
36 	unsigned char connected;
37 	unsigned char phase_inv;
38 	int volume;
39 };
40 
41 
42 /* firmware status codes  */
43 #define MIXART_MOTHERBOARD_XLX_INDEX  0
44 #define MIXART_MOTHERBOARD_ELF_INDEX  1
45 #define MIXART_AESEBUBOARD_XLX_INDEX  2
46 #define MIXART_HARDW_FILES_MAX_INDEX  3  /* xilinx, elf, AESEBU xilinx */
47 
48 #define MIXART_MAX_CARDS	4
49 #define MSG_FIFO_SIZE           16
50 
51 #define MIXART_MAX_PHYS_CONNECTORS  (MIXART_MAX_CARDS * 2 * 2) /* 4 * stereo * (analog+digital) */
52 
53 struct mixart_mgr {
54 	unsigned int num_cards;
55 	struct snd_mixart *chip[MIXART_MAX_CARDS];
56 
57 	struct pci_dev *pci;
58 
59 	int irq;
60 
61 	/* memory-maps */
62 	struct mem_area mem[2];
63 
64 	/* one and only blocking message or notification may be pending  */
65 	u32 pending_event;
66 	wait_queue_head_t msg_sleep;
67 
68 	/* messages fifo */
69 	u32 msg_fifo[MSG_FIFO_SIZE];
70 	int msg_fifo_readptr;
71 	int msg_fifo_writeptr;
72 	atomic_t msg_processed;       /* number of messages to be processed in irq thread */
73 
74 	struct mutex lock;              /* interrupt lock */
75 	struct mutex msg_lock;		/* mailbox lock */
76 
77 	struct mutex setup_mutex; /* mutex used in hw_params, open and close */
78 
79 	/* hardware interface */
80 	unsigned int dsp_loaded;      /* bit flags of loaded dsp indices */
81 	unsigned int board_type;      /* read from embedded once elf file is loaded, 250 = miXart8, 251 = with AES, 252 = with Cobranet */
82 
83 	struct snd_dma_buffer flowinfo;
84 	struct snd_dma_buffer bufferinfo;
85 
86 	struct mixart_uid         uid_console_manager;
87 	int sample_rate;
88 	int ref_count_rate;
89 
90 	struct mutex mixer_mutex; /* mutex for mixer */
91 
92 };
93 
94 
95 #define MIXART_STREAM_STATUS_FREE	0
96 #define MIXART_STREAM_STATUS_OPEN	1
97 #define MIXART_STREAM_STATUS_RUNNING	2
98 #define MIXART_STREAM_STATUS_DRAINING	3
99 #define MIXART_STREAM_STATUS_PAUSE	4
100 
101 #define MIXART_PLAYBACK_STREAMS		4
102 #define MIXART_CAPTURE_STREAMS		1
103 
104 #define MIXART_PCM_ANALOG		0
105 #define MIXART_PCM_DIGITAL		1
106 #define MIXART_PCM_TOTAL		2
107 
108 #define MIXART_MAX_STREAM_PER_CARD  (MIXART_PCM_TOTAL * (MIXART_PLAYBACK_STREAMS + MIXART_CAPTURE_STREAMS) )
109 
110 
111 #define MIXART_NOTIFY_CARD_MASK		0xF000
112 #define MIXART_NOTIFY_CARD_OFFSET	12
113 #define MIXART_NOTIFY_PCM_MASK		0x0F00
114 #define MIXART_NOTIFY_PCM_OFFSET	8
115 #define MIXART_NOTIFY_CAPT_MASK		0x0080
116 #define MIXART_NOTIFY_SUBS_MASK		0x007F
117 
118 
119 struct mixart_stream {
120 	struct snd_pcm_substream *substream;
121 	struct mixart_pipe *pipe;
122 	int pcm_number;
123 
124 	int status;      /* nothing, running, draining */
125 
126 	u64  abs_period_elapsed;  /* last absolute stream position where period_elapsed was called (multiple of runtime->period_size) */
127 	u32  buf_periods;         /* periods counter in the buffer (< runtime->periods) */
128 	u32  buf_period_frag;     /* defines with buf_period_pos the exact position in the buffer (< runtime->period_size) */
129 
130 	int channels;
131 };
132 
133 
134 enum mixart_pipe_status {
135 	PIPE_UNDEFINED,
136 	PIPE_STOPPED,
137 	PIPE_RUNNING,
138 	PIPE_CLOCK_SET
139 };
140 
141 struct mixart_pipe {
142 	struct mixart_uid group_uid;			/* id of the pipe, as returned by embedded */
143 	int          stream_count;
144 	struct mixart_uid uid_left_connector;	/* UID's for the audio connectors */
145 	struct mixart_uid uid_right_connector;
146 	enum mixart_pipe_status status;
147 	int references;             /* number of subs openned */
148 	int monitoring;             /* pipe used for monitoring issue */
149 };
150 
151 
152 struct snd_mixart {
153 	struct snd_card *card;
154 	struct mixart_mgr *mgr;
155 	int chip_idx;               /* zero based */
156 	struct snd_hwdep *hwdep;	    /* DSP loader, only for the first card */
157 
158 	struct snd_pcm *pcm;             /* PCM analog i/o */
159 	struct snd_pcm *pcm_dig;         /* PCM digital i/o */
160 
161 	/* allocate stereo pipe for instance */
162 	struct mixart_pipe pipe_in_ana;
163 	struct mixart_pipe pipe_out_ana;
164 
165 	/* if AES/EBU daughter board is available, additional pipes possible on pcm_dig */
166 	struct mixart_pipe pipe_in_dig;
167 	struct mixart_pipe pipe_out_dig;
168 
169 	struct mixart_stream playback_stream[MIXART_PCM_TOTAL][MIXART_PLAYBACK_STREAMS]; /* 0 = pcm, 1 = pcm_dig */
170 	struct mixart_stream capture_stream[MIXART_PCM_TOTAL];                           /* 0 = pcm, 1 = pcm_dig */
171 
172 	/* UID's for the physical io's */
173 	struct mixart_uid uid_out_analog_physio;
174 	struct mixart_uid uid_in_analog_physio;
175 
176 	int analog_playback_active[2];		/* Mixer : Master Playback active (!mute) */
177 	int analog_playback_volume[2];		/* Mixer : Master Playback Volume */
178 	int analog_capture_volume[2];		/* Mixer : Master Capture Volume */
179 	int digital_playback_active[2*MIXART_PLAYBACK_STREAMS][2];	/* Mixer : Digital Playback Active [(analog+AES output)*streams][stereo]*/
180 	int digital_playback_volume[2*MIXART_PLAYBACK_STREAMS][2];	/* Mixer : Digital Playback Volume [(analog+AES output)*streams][stereo]*/
181 	int digital_capture_volume[2][2];	/* Mixer : Digital Capture Volume [analog+AES output][stereo] */
182 	int monitoring_active[2];		/* Mixer : Monitoring Active */
183 	int monitoring_volume[2];		/* Mixer : Monitoring Volume */
184 };
185 
186 struct mixart_bufferinfo
187 {
188 	u32 buffer_address;
189 	u32 reserved[5];
190 	u32 available_length;
191 	u32 buffer_id;
192 };
193 
194 struct mixart_flowinfo
195 {
196 	u32 bufferinfo_array_phy_address;
197 	u32 reserved[11];
198 	u32 bufferinfo_count;
199 	u32 capture;
200 };
201 
202 /* exported */
203 int snd_mixart_create_pcm(struct snd_mixart * chip);
204 struct mixart_pipe *snd_mixart_add_ref_pipe(struct snd_mixart *chip, int pcm_number, int capture, int monitoring);
205 int snd_mixart_kill_ref_pipe(struct mixart_mgr *mgr, struct mixart_pipe *pipe, int monitoring);
206 
207 #endif /* __SOUND_MIXART_H */
208