1 /*
2 * Driver for Digigram pcxhr soundcards
3 *
4 * main header file
5 *
6 * Copyright (c) 2004 by Digigram <alsa@digigram.com>
7 *
8 * This program is free software; you can redistribute it and/or modify
9 * it under the terms of the GNU General Public License as published by
10 * the Free Software Foundation; either version 2 of the License, or
11 * (at your option) any later version.
12 *
13 * This program is distributed in the hope that it will be useful,
14 * but WITHOUT ANY WARRANTY; without even the implied warranty of
15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16 * GNU General Public License for more details.
17 *
18 * You should have received a copy of the GNU General Public License
19 * along with this program; if not, write to the Free Software
20 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
21 */
22
23 #ifndef __SOUND_PCXHR_H
24 #define __SOUND_PCXHR_H
25
26 #include <linux/interrupt.h>
27 #include <linux/mutex.h>
28 #include <sound/pcm.h>
29
30 #define PCXHR_DRIVER_VERSION 0x000804 /* 0.8.4 */
31 #define PCXHR_DRIVER_VERSION_STRING "0.8.4" /* 0.8.4 */
32
33
34 #define PCXHR_MAX_CARDS 6
35 #define PCXHR_PLAYBACK_STREAMS 4
36
37 #define PCXHR_GRANULARITY 96 /* transfer granularity (should be min 96 and multiple of 48) */
38 #define PCXHR_GRANULARITY_MIN 96 /* transfer granularity of pipes and the dsp time (MBOX4) */
39
40 struct snd_pcxhr;
41 struct pcxhr_mgr;
42
43 struct pcxhr_stream;
44 struct pcxhr_pipe;
45
46 enum pcxhr_clock_type {
47 PCXHR_CLOCK_TYPE_INTERNAL = 0,
48 PCXHR_CLOCK_TYPE_WORD_CLOCK,
49 PCXHR_CLOCK_TYPE_AES_SYNC,
50 PCXHR_CLOCK_TYPE_AES_1,
51 PCXHR_CLOCK_TYPE_AES_2,
52 PCXHR_CLOCK_TYPE_AES_3,
53 PCXHR_CLOCK_TYPE_AES_4,
54 };
55
56 struct pcxhr_mgr {
57 unsigned int num_cards;
58 struct snd_pcxhr *chip[PCXHR_MAX_CARDS];
59
60 struct pci_dev *pci;
61
62 int irq;
63
64 /* card access with 1 mem bar and 2 io bar's */
65 unsigned long port[3];
66
67 /* share the name */
68 char shortname[32]; /* short name of this soundcard */
69 char longname[96]; /* name of this soundcard */
70
71 /* message tasklet */
72 struct tasklet_struct msg_taskq;
73 struct pcxhr_rmh *prmh;
74 /* trigger tasklet */
75 struct tasklet_struct trigger_taskq;
76
77 spinlock_t lock; /* interrupt spinlock */
78 spinlock_t msg_lock; /* message spinlock */
79
80 struct mutex setup_mutex; /* mutex used in hw_params, open and close */
81 struct mutex mixer_mutex; /* mutex for mixer */
82
83 /* hardware interface */
84 unsigned int dsp_loaded; /* bit flags of loaded dsp indices */
85 unsigned int dsp_version; /* read from embedded once firmware is loaded */
86 int board_has_analog; /* if 0 the board is digital only */
87 int mono_capture; /* if 1 the board does mono capture */
88 int playback_chips; /* 4 or 6 */
89 int capture_chips; /* 4 or 1 */
90 int firmware_num; /* 41 or 42 */
91
92 struct snd_dma_buffer hostport;
93
94 enum pcxhr_clock_type use_clock_type; /* clock type selected by mixer */
95 enum pcxhr_clock_type cur_clock_type; /* current clock type synced */
96 int sample_rate;
97 int ref_count_rate;
98 int timer_toggle; /* timer interrupt toggles between the two values 0x200 and 0x300 */
99 int dsp_time_last; /* the last dsp time (read by interrupt) */
100 int dsp_time_err; /* dsp time errors */
101 unsigned int src_it_dsp; /* dsp interrupt source */
102 unsigned int io_num_reg_cont; /* backup of IO_NUM_REG_CONT */
103 unsigned int codec_speed; /* speed mode of the codecs */
104 unsigned int sample_rate_real; /* current real sample rate */
105 int last_reg_stat;
106 int async_err_stream_xrun;
107 int async_err_pipe_xrun;
108 int async_err_other_last;
109 };
110
111
112 enum pcxhr_stream_status {
113 PCXHR_STREAM_STATUS_FREE,
114 PCXHR_STREAM_STATUS_OPEN,
115 PCXHR_STREAM_STATUS_SCHEDULE_RUN,
116 PCXHR_STREAM_STATUS_STARTED,
117 PCXHR_STREAM_STATUS_RUNNING,
118 PCXHR_STREAM_STATUS_SCHEDULE_STOP,
119 PCXHR_STREAM_STATUS_STOPPED,
120 PCXHR_STREAM_STATUS_PAUSED
121 };
122
123 struct pcxhr_stream {
124 struct snd_pcm_substream *substream;
125 snd_pcm_format_t format;
126 struct pcxhr_pipe *pipe;
127
128 enum pcxhr_stream_status status; /* free, open, running, draining, pause */
129
130 u_int64_t timer_abs_periods; /* timer: samples elapsed since TRIGGER_START (multiple of period_size) */
131 u_int32_t timer_period_frag; /* timer: samples elapsed since last call to snd_pcm_period_elapsed (0..period_size) */
132 u_int32_t timer_buf_periods; /* nb of periods in the buffer that have already elapsed */
133 int timer_is_synced; /* if(0) : timer needs to be resynced with real hardware pointer */
134
135 int channels;
136 };
137
138
139 enum pcxhr_pipe_status {
140 PCXHR_PIPE_UNDEFINED,
141 PCXHR_PIPE_DEFINED
142 };
143
144 struct pcxhr_pipe {
145 enum pcxhr_pipe_status status;
146 int is_capture; /* this is a capture pipe */
147 int first_audio; /* first audio num */
148 };
149
150
151 struct snd_pcxhr {
152 struct snd_card *card;
153 struct pcxhr_mgr *mgr;
154 int chip_idx; /* zero based */
155
156 struct snd_pcm *pcm; /* PCM */
157
158 struct pcxhr_pipe playback_pipe; /* 1 stereo pipe only */
159 struct pcxhr_pipe capture_pipe[2]; /* 1 stereo pipe or 2 mono pipes */
160
161 struct pcxhr_stream playback_stream[PCXHR_PLAYBACK_STREAMS];
162 struct pcxhr_stream capture_stream[2]; /* 1 stereo stream or 2 mono streams */
163 int nb_streams_play;
164 int nb_streams_capt;
165
166 int analog_playback_active[2]; /* Mixer : Master Playback active (!mute) */
167 int analog_playback_volume[2]; /* Mixer : Master Playback Volume */
168 int analog_capture_volume[2]; /* Mixer : Master Capture Volume */
169 int digital_playback_active[PCXHR_PLAYBACK_STREAMS][2]; /* Mixer : Digital Playback Active [streams][stereo]*/
170 int digital_playback_volume[PCXHR_PLAYBACK_STREAMS][2]; /* Mixer : Digital Playback Volume [streams][stereo]*/
171 int digital_capture_volume[2]; /* Mixer : Digital Capture Volume [stereo] */
172 int monitoring_active[2]; /* Mixer : Monitoring Active */
173 int monitoring_volume[2]; /* Mixer : Monitoring Volume */
174 int audio_capture_source; /* Mixer : Audio Capture Source */
175 unsigned char aes_bits[5]; /* Mixer : IEC958_AES bits */
176 };
177
178 struct pcxhr_hostport
179 {
180 char purgebuffer[6];
181 char reserved[2];
182 };
183
184 /* exported */
185 int pcxhr_create_pcm(struct snd_pcxhr *chip);
186 int pcxhr_set_clock(struct pcxhr_mgr *mgr, unsigned int rate);
187 int pcxhr_get_external_clock(struct pcxhr_mgr *mgr, enum pcxhr_clock_type clock_type, int *sample_rate);
188
189 #endif /* __SOUND_PCXHR_H */
190
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