1 /* SPDX-License-Identifier: GPL-2.0-or-later */
2 /*
3  * Driver for Digigram pcxhr soundcards
4  *
5  * main header file
6  *
7  * Copyright (c) 2004 by Digigram <alsa@digigram.com>
8  */
9 
10 #ifndef __SOUND_PCXHR_H
11 #define __SOUND_PCXHR_H
12 
13 #include <linux/interrupt.h>
14 #include <linux/mutex.h>
15 #include <sound/pcm.h>
16 
17 #define PCXHR_DRIVER_VERSION		0x000906	/* 0.9.6 */
18 #define PCXHR_DRIVER_VERSION_STRING	"0.9.6"		/* 0.9.6 */
19 
20 
21 #define PCXHR_MAX_CARDS		6
22 #define PCXHR_PLAYBACK_STREAMS	4
23 
24 #define PCXHR_GRANULARITY	96	/* min 96 and multiple of 48 */
25 /* transfer granularity of pipes and the dsp time (MBOX4) */
26 #define PCXHR_GRANULARITY_MIN	96
27 /* TODO : granularity could be 64 or 128 */
28 #define PCXHR_GRANULARITY_HR22	192	/* granularity for stereo cards */
29 
30 struct snd_pcxhr;
31 struct pcxhr_mgr;
32 
33 struct pcxhr_stream;
34 struct pcxhr_pipe;
35 
36 enum pcxhr_clock_type {
37 	PCXHR_CLOCK_TYPE_INTERNAL = 0,
38 	PCXHR_CLOCK_TYPE_WORD_CLOCK,
39 	PCXHR_CLOCK_TYPE_AES_SYNC,
40 	PCXHR_CLOCK_TYPE_AES_1,
41 	PCXHR_CLOCK_TYPE_AES_2,
42 	PCXHR_CLOCK_TYPE_AES_3,
43 	PCXHR_CLOCK_TYPE_AES_4,
44 	PCXHR_CLOCK_TYPE_MAX = PCXHR_CLOCK_TYPE_AES_4,
45 	HR22_CLOCK_TYPE_INTERNAL = PCXHR_CLOCK_TYPE_INTERNAL,
46 	HR22_CLOCK_TYPE_AES_SYNC,
47 	HR22_CLOCK_TYPE_AES_1,
48 	HR22_CLOCK_TYPE_MAX = HR22_CLOCK_TYPE_AES_1,
49 };
50 
51 struct pcxhr_mgr {
52 	unsigned int num_cards;
53 	struct snd_pcxhr *chip[PCXHR_MAX_CARDS];
54 
55 	struct pci_dev *pci;
56 
57 	int irq;
58 
59 	int granularity;
60 
61 	/* card access with 1 mem bar and 2 io bar's */
62 	unsigned long port[3];
63 
64 	/* share the name */
65 	char name[40];			/* name of this soundcard */
66 
67 	struct pcxhr_rmh *prmh;
68 
69 	struct mutex lock;		/* interrupt lock */
70 	struct mutex msg_lock;		/* message lock */
71 
72 	struct mutex setup_mutex;	/* mutex used in hw_params, open and close */
73 	struct mutex mixer_mutex;	/* mutex for mixer */
74 
75 	/* hardware interface */
76 	unsigned int dsp_loaded;	/* bit flags of loaded dsp indices */
77 	unsigned int dsp_version;	/* read from embedded once firmware is loaded */
78 	int playback_chips;
79 	int capture_chips;
80 	int fw_file_set;
81 	int firmware_num;
82 	unsigned int is_hr_stereo:1;
83 	unsigned int board_has_aes1:1;	/* if 1 board has AES1 plug and SRC */
84 	unsigned int board_has_analog:1; /* if 0 the board is digital only */
85 	unsigned int board_has_mic:1; /* if 1 the board has microphone input */
86 	unsigned int board_aes_in_192k:1;/* if 1 the aes input plugs do support 192kHz */
87 	unsigned int mono_capture:1; /* if 1 the board does mono capture */
88 	unsigned int capture_ltc:1; /* if 1 the board captures LTC input */
89 
90 	struct snd_dma_buffer hostport;
91 
92 	enum pcxhr_clock_type use_clock_type;	/* clock type selected by mixer */
93 	enum pcxhr_clock_type cur_clock_type;	/* current clock type synced */
94 	int sample_rate;
95 	int ref_count_rate;
96 	int timer_toggle;		/* timer interrupt toggles between the two values 0x200 and 0x300 */
97 	int dsp_time_last;		/* the last dsp time (read by interrupt) */
98 	int dsp_time_err;		/* dsp time errors */
99 	unsigned int src_it_dsp;	/* dsp interrupt source */
100 	unsigned int io_num_reg_cont;	/* backup of IO_NUM_REG_CONT */
101 	unsigned int codec_speed;	/* speed mode of the codecs */
102 	unsigned int sample_rate_real;	/* current real sample rate */
103 	int last_reg_stat;
104 	int async_err_stream_xrun;
105 	int async_err_pipe_xrun;
106 	int async_err_other_last;
107 
108 	unsigned char xlx_cfg;		/* copy of PCXHR_XLX_CFG register */
109 	unsigned char xlx_selmic;	/* copy of PCXHR_XLX_SELMIC register */
110 	unsigned char dsp_reset;	/* copy of PCXHR_DSP_RESET register */
111 };
112 
113 
114 enum pcxhr_stream_status {
115 	PCXHR_STREAM_STATUS_FREE,
116 	PCXHR_STREAM_STATUS_OPEN,
117 	PCXHR_STREAM_STATUS_SCHEDULE_RUN,
118 	PCXHR_STREAM_STATUS_STARTED,
119 	PCXHR_STREAM_STATUS_RUNNING,
120 	PCXHR_STREAM_STATUS_SCHEDULE_STOP,
121 	PCXHR_STREAM_STATUS_STOPPED,
122 	PCXHR_STREAM_STATUS_PAUSED
123 };
124 
125 struct pcxhr_stream {
126 	struct snd_pcm_substream *substream;
127 	snd_pcm_format_t format;
128 	struct pcxhr_pipe *pipe;
129 
130 	enum pcxhr_stream_status status;	/* free, open, running, draining, pause */
131 
132 	u_int64_t timer_abs_periods;	/* timer: samples elapsed since TRIGGER_START (multiple of period_size) */
133 	u_int32_t timer_period_frag;	/* timer: samples elapsed since last call to snd_pcm_period_elapsed (0..period_size) */
134 	u_int32_t timer_buf_periods;	/* nb of periods in the buffer that have already elapsed */
135 	int timer_is_synced;		/* if(0) : timer needs to be resynced with real hardware pointer */
136 
137 	int channels;
138 };
139 
140 
141 enum pcxhr_pipe_status {
142 	PCXHR_PIPE_UNDEFINED,
143 	PCXHR_PIPE_DEFINED
144 };
145 
146 struct pcxhr_pipe {
147 	enum pcxhr_pipe_status status;
148 	int is_capture;		/* this is a capture pipe */
149 	int first_audio;	/* first audio num */
150 };
151 
152 
153 struct snd_pcxhr {
154 	struct snd_card *card;
155 	struct pcxhr_mgr *mgr;
156 	int chip_idx;		/* zero based */
157 
158 	struct snd_pcm *pcm;		/* PCM */
159 
160 	struct pcxhr_pipe playback_pipe;	/* 1 stereo pipe only */
161 	struct pcxhr_pipe capture_pipe[2];	/* 1 stereo or 2 mono pipes */
162 
163 	struct pcxhr_stream playback_stream[PCXHR_PLAYBACK_STREAMS];
164 	struct pcxhr_stream capture_stream[2];	/* 1 stereo or 2 mono streams */
165 	int nb_streams_play;
166 	int nb_streams_capt;
167 
168 	int analog_playback_active[2];	/* Mixer : Master Playback !mute */
169 	int analog_playback_volume[2];	/* Mixer : Master Playback Volume */
170 	int analog_capture_volume[2];	/* Mixer : Master Capture Volume */
171 	int digital_playback_active[PCXHR_PLAYBACK_STREAMS][2];
172 	int digital_playback_volume[PCXHR_PLAYBACK_STREAMS][2];
173 	int digital_capture_volume[2];	/* Mixer : Digital Capture Volume */
174 	int monitoring_active[2];	/* Mixer : Monitoring Active */
175 	int monitoring_volume[2];	/* Mixer : Monitoring Volume */
176 	int audio_capture_source;	/* Mixer : Audio Capture Source */
177 	int mic_volume;			/* used by cards with MIC only */
178 	int mic_boost;			/* used by cards with MIC only */
179 	int mic_active;			/* used by cards with MIC only */
180 	int analog_capture_active;	/* used by cards with MIC only */
181 	int phantom_power;		/* used by cards with MIC only */
182 
183 	unsigned char aes_bits[5];	/* Mixer : IEC958_AES bits */
184 };
185 
186 struct pcxhr_hostport
187 {
188 	char purgebuffer[6];
189 	char reserved[2];
190 };
191 
192 /* exported */
193 int pcxhr_create_pcm(struct snd_pcxhr *chip);
194 int pcxhr_set_clock(struct pcxhr_mgr *mgr, unsigned int rate);
195 int pcxhr_get_external_clock(struct pcxhr_mgr *mgr,
196 			     enum pcxhr_clock_type clock_type,
197 			     int *sample_rate);
198 
199 #endif /* __SOUND_PCXHR_H */
200