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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 <sound/pcm.h> | |
28 | ||
29 | #define PCXHR_DRIVER_VERSION 0x000804 /* 0.8.4 */ | |
30 | #define PCXHR_DRIVER_VERSION_STRING "0.8.4" /* 0.8.4 */ | |
31 | ||
32 | ||
33 | #define PCXHR_MAX_CARDS 6 | |
34 | #define PCXHR_PLAYBACK_STREAMS 4 | |
35 | ||
36 | #define PCXHR_GRANULARITY 96 /* transfer granularity (should be min 96 and multiple of 48) */ | |
37 | #define PCXHR_GRANULARITY_MIN 96 /* transfer granularity of pipes and the dsp time (MBOX4) */ | |
38 | ||
39 | struct snd_pcxhr; | |
40 | struct pcxhr_mgr; | |
41 | ||
42 | struct pcxhr_stream; | |
43 | struct pcxhr_pipe; | |
44 | ||
45 | enum pcxhr_clock_type { | |
46 | PCXHR_CLOCK_TYPE_INTERNAL = 0, | |
47 | PCXHR_CLOCK_TYPE_WORD_CLOCK, | |
48 | PCXHR_CLOCK_TYPE_AES_SYNC, | |
49 | PCXHR_CLOCK_TYPE_AES_1, | |
50 | PCXHR_CLOCK_TYPE_AES_2, | |
51 | PCXHR_CLOCK_TYPE_AES_3, | |
52 | PCXHR_CLOCK_TYPE_AES_4, | |
53 | }; | |
54 | ||
55 | struct pcxhr_mgr { | |
56 | unsigned int num_cards; | |
57 | struct snd_pcxhr *chip[PCXHR_MAX_CARDS]; | |
58 | ||
59 | struct pci_dev *pci; | |
60 | ||
61 | int irq; | |
62 | ||
63 | /* card access with 1 mem bar and 2 io bar's */ | |
64 | unsigned long port[3]; | |
65 | ||
66 | /* share the name */ | |
67 | char shortname[32]; /* short name of this soundcard */ | |
68 | char longname[96]; /* name of this soundcard */ | |
69 | ||
70 | /* message tasklet */ | |
71 | struct tasklet_struct msg_taskq; | |
72 | struct pcxhr_rmh *prmh; | |
73 | /* trigger tasklet */ | |
74 | struct tasklet_struct trigger_taskq; | |
75 | ||
76 | spinlock_t lock; /* interrupt spinlock */ | |
77 | spinlock_t msg_lock; /* message spinlock */ | |
78 | ||
79 | struct semaphore setup_mutex; /* mutex used in hw_params, open and close */ | |
80 | struct semaphore mixer_mutex; /* mutex for mixer */ | |
81 | ||
82 | /* hardware interface */ | |
83 | unsigned int dsp_loaded; /* bit flags of loaded dsp indices */ | |
84 | unsigned int dsp_version; /* read from embedded once firmware is loaded */ | |
85 | int board_has_analog; /* if 0 the board is digital only */ | |
86 | int mono_capture; /* if 1 the board does mono capture */ | |
87 | int playback_chips; /* 4 or 6 */ | |
88 | int capture_chips; /* 4 or 1 */ | |
89 | int firmware_num; /* 41 or 42 */ | |
90 | ||
91 | struct snd_dma_buffer hostport; | |
92 | ||
93 | enum pcxhr_clock_type use_clock_type; /* clock type selected by mixer */ | |
94 | enum pcxhr_clock_type cur_clock_type; /* current clock type synced */ | |
95 | int sample_rate; | |
96 | int ref_count_rate; | |
97 | int timer_toggle; /* timer interrupt toggles between the two values 0x200 and 0x300 */ | |
98 | int dsp_time_last; /* the last dsp time (read by interrupt) */ | |
99 | int dsp_time_err; /* dsp time errors */ | |
100 | unsigned int src_it_dsp; /* dsp interrupt source */ | |
101 | unsigned int io_num_reg_cont; /* backup of IO_NUM_REG_CONT */ | |
102 | unsigned int codec_speed; /* speed mode of the codecs */ | |
103 | unsigned int sample_rate_real; /* current real sample rate */ | |
104 | int last_reg_stat; | |
105 | int async_err_stream_xrun; | |
106 | int async_err_pipe_xrun; | |
107 | int async_err_other_last; | |
108 | }; | |
109 | ||
110 | ||
111 | enum pcxhr_stream_status { | |
112 | PCXHR_STREAM_STATUS_FREE, | |
113 | PCXHR_STREAM_STATUS_OPEN, | |
114 | PCXHR_STREAM_STATUS_SCHEDULE_RUN, | |
115 | PCXHR_STREAM_STATUS_STARTED, | |
116 | PCXHR_STREAM_STATUS_RUNNING, | |
117 | PCXHR_STREAM_STATUS_SCHEDULE_STOP, | |
118 | PCXHR_STREAM_STATUS_STOPPED, | |
119 | PCXHR_STREAM_STATUS_PAUSED | |
120 | }; | |
121 | ||
122 | struct pcxhr_stream { | |
123 | struct snd_pcm_substream *substream; | |
124 | snd_pcm_format_t format; | |
125 | struct pcxhr_pipe *pipe; | |
126 | ||
127 | enum pcxhr_stream_status status; /* free, open, running, draining, pause */ | |
128 | ||
129 | u_int64_t timer_abs_periods; /* timer: samples elapsed since TRIGGER_START (multiple of period_size) */ | |
130 | u_int32_t timer_period_frag; /* timer: samples elapsed since last call to snd_pcm_period_elapsed (0..period_size) */ | |
131 | u_int32_t timer_buf_periods; /* nb of periods in the buffer that have already elapsed */ | |
132 | int timer_is_synced; /* if(0) : timer needs to be resynced with real hardware pointer */ | |
133 | ||
134 | int channels; | |
135 | }; | |
136 | ||
137 | ||
138 | enum pcxhr_pipe_status { | |
139 | PCXHR_PIPE_UNDEFINED, | |
140 | PCXHR_PIPE_DEFINED | |
141 | }; | |
142 | ||
143 | struct pcxhr_pipe { | |
144 | enum pcxhr_pipe_status status; | |
145 | int is_capture; /* this is a capture pipe */ | |
146 | int first_audio; /* first audio num */ | |
147 | }; | |
148 | ||
149 | ||
150 | struct snd_pcxhr { | |
151 | struct snd_card *card; | |
152 | struct pcxhr_mgr *mgr; | |
153 | int chip_idx; /* zero based */ | |
154 | ||
155 | struct snd_pcm *pcm; /* PCM */ | |
156 | ||
157 | struct pcxhr_pipe playback_pipe; /* 1 stereo pipe only */ | |
158 | struct pcxhr_pipe capture_pipe[2]; /* 1 stereo pipe or 2 mono pipes */ | |
159 | ||
160 | struct pcxhr_stream playback_stream[PCXHR_PLAYBACK_STREAMS]; | |
161 | struct pcxhr_stream capture_stream[2]; /* 1 stereo stream or 2 mono streams */ | |
162 | int nb_streams_play; | |
163 | int nb_streams_capt; | |
164 | ||
165 | int analog_playback_active[2]; /* Mixer : Master Playback active (!mute) */ | |
166 | int analog_playback_volume[2]; /* Mixer : Master Playback Volume */ | |
167 | int analog_capture_volume[2]; /* Mixer : Master Capture Volume */ | |
168 | int digital_playback_active[PCXHR_PLAYBACK_STREAMS][2]; /* Mixer : Digital Playback Active [streams][stereo]*/ | |
169 | int digital_playback_volume[PCXHR_PLAYBACK_STREAMS][2]; /* Mixer : Digital Playback Volume [streams][stereo]*/ | |
170 | int digital_capture_volume[2]; /* Mixer : Digital Capture Volume [stereo] */ | |
171 | int monitoring_active[2]; /* Mixer : Monitoring Active */ | |
172 | int monitoring_volume[2]; /* Mixer : Monitoring Volume */ | |
173 | int audio_capture_source; /* Mixer : Audio Capture Source */ | |
174 | unsigned char aes_bits[5]; /* Mixer : IEC958_AES bits */ | |
175 | }; | |
176 | ||
177 | struct pcxhr_hostport | |
178 | { | |
179 | char purgebuffer[6]; | |
180 | char reserved[2]; | |
181 | }; | |
182 | ||
183 | /* exported */ | |
184 | int pcxhr_create_pcm(struct snd_pcxhr *chip); | |
185 | int pcxhr_set_clock(struct pcxhr_mgr *mgr, unsigned int rate); | |
186 | int pcxhr_get_external_clock(struct pcxhr_mgr *mgr, enum pcxhr_clock_type clock_type, int *sample_rate); | |
187 | ||
188 | #endif /* __SOUND_PCXHR_H */ |