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1da177e4 LT |
1 | #ifndef _cs4218_h_ |
2 | /* | |
3 | * Hacked version of linux/drivers/sound/dmasound/dmasound.h | |
4 | * | |
5 | * | |
6 | * Minor numbers for the sound driver. | |
7 | * | |
8 | * Unfortunately Creative called the codec chip of SB as a DSP. For this | |
9 | * reason the /dev/dsp is reserved for digitized audio use. There is a | |
10 | * device for true DSP processors but it will be called something else. | |
11 | * In v3.0 it's /dev/sndproc but this could be a temporary solution. | |
12 | */ | |
13 | #define _cs4218_h_ | |
14 | ||
15 | #include <linux/types.h> | |
1da177e4 LT |
16 | |
17 | #define SND_NDEVS 256 /* Number of supported devices */ | |
18 | #define SND_DEV_CTL 0 /* Control port /dev/mixer */ | |
19 | #define SND_DEV_SEQ 1 /* Sequencer output /dev/sequencer (FM | |
20 | synthesizer and MIDI output) */ | |
21 | #define SND_DEV_MIDIN 2 /* Raw midi access */ | |
22 | #define SND_DEV_DSP 3 /* Digitized voice /dev/dsp */ | |
23 | #define SND_DEV_AUDIO 4 /* Sparc compatible /dev/audio */ | |
24 | #define SND_DEV_DSP16 5 /* Like /dev/dsp but 16 bits/sample */ | |
25 | #define SND_DEV_STATUS 6 /* /dev/sndstat */ | |
26 | /* #7 not in use now. Was in 2.4. Free for use after v3.0. */ | |
27 | #define SND_DEV_SEQ2 8 /* /dev/sequencer, level 2 interface */ | |
28 | #define SND_DEV_SNDPROC 9 /* /dev/sndproc for programmable devices */ | |
29 | #define SND_DEV_PSS SND_DEV_SNDPROC | |
30 | ||
31 | /* switch on various prinks */ | |
32 | #define DEBUG_DMASOUND 1 | |
33 | ||
34 | #define MAX_AUDIO_DEV 5 | |
35 | #define MAX_MIXER_DEV 4 | |
36 | #define MAX_SYNTH_DEV 3 | |
37 | #define MAX_MIDI_DEV 6 | |
38 | #define MAX_TIMER_DEV 3 | |
39 | ||
40 | #define MAX_CATCH_RADIUS 10 | |
41 | ||
42 | #define le2be16(x) (((x)<<8 & 0xff00) | ((x)>>8 & 0x00ff)) | |
43 | #define le2be16dbl(x) (((x)<<8 & 0xff00ff00) | ((x)>>8 & 0x00ff00ff)) | |
44 | ||
45 | #define IOCTL_IN(arg, ret) \ | |
46 | do { int error = get_user(ret, (int *)(arg)); \ | |
47 | if (error) return error; \ | |
48 | } while (0) | |
49 | #define IOCTL_OUT(arg, ret) ioctl_return((int *)(arg), ret) | |
50 | ||
51 | static inline int ioctl_return(int *addr, int value) | |
52 | { | |
53 | return value < 0 ? value : put_user(value, addr); | |
54 | } | |
55 | ||
56 | #define HAS_RECORD | |
57 | ||
58 | /* | |
59 | * Initialization | |
60 | */ | |
61 | ||
62 | /* description of the set-up applies to either hard or soft settings */ | |
63 | ||
64 | typedef struct { | |
65 | int format; /* AFMT_* */ | |
66 | int stereo; /* 0 = mono, 1 = stereo */ | |
67 | int size; /* 8/16 bit*/ | |
68 | int speed; /* speed */ | |
69 | } SETTINGS; | |
70 | ||
71 | /* | |
72 | * Machine definitions | |
73 | */ | |
74 | ||
75 | typedef struct { | |
76 | const char *name; | |
77 | const char *name2; | |
78 | void (*open)(void); | |
79 | void (*release)(void); | |
1ef64e67 | 80 | void *(*dma_alloc)(unsigned int, gfp_t); |
1da177e4 LT |
81 | void (*dma_free)(void *, unsigned int); |
82 | int (*irqinit)(void); | |
83 | #ifdef MODULE | |
84 | void (*irqcleanup)(void); | |
85 | #endif | |
86 | void (*init)(void); | |
87 | void (*silence)(void); | |
88 | int (*setFormat)(int); | |
89 | int (*setVolume)(int); | |
90 | int (*setBass)(int); | |
91 | int (*setTreble)(int); | |
92 | int (*setGain)(int); | |
93 | void (*play)(void); | |
94 | void (*record)(void); /* optional */ | |
95 | void (*mixer_init)(void); /* optional */ | |
96 | int (*mixer_ioctl)(u_int, u_long); /* optional */ | |
97 | int (*write_sq_setup)(void); /* optional */ | |
98 | int (*read_sq_setup)(void); /* optional */ | |
99 | int (*sq_open)(mode_t); /* optional */ | |
100 | int (*state_info)(char *, size_t); /* optional */ | |
101 | void (*abort_read)(void); /* optional */ | |
102 | int min_dsp_speed; | |
103 | int max_dsp_speed; | |
104 | int version ; | |
105 | int hardware_afmts ; /* OSS says we only return h'ware info */ | |
106 | /* when queried via SNDCTL_DSP_GETFMTS */ | |
107 | int capabilities ; /* low-level reply to SNDCTL_DSP_GETCAPS */ | |
108 | SETTINGS default_hard ; /* open() or init() should set something valid */ | |
109 | SETTINGS default_soft ; /* you can make it look like old OSS, if you want to */ | |
110 | } MACHINE; | |
111 | ||
112 | /* | |
113 | * Low level stuff | |
114 | */ | |
115 | ||
116 | typedef struct { | |
117 | ssize_t (*ct_ulaw)(const u_char *, size_t, u_char *, ssize_t *, ssize_t); | |
118 | ssize_t (*ct_alaw)(const u_char *, size_t, u_char *, ssize_t *, ssize_t); | |
119 | ssize_t (*ct_s8)(const u_char *, size_t, u_char *, ssize_t *, ssize_t); | |
120 | ssize_t (*ct_u8)(const u_char *, size_t, u_char *, ssize_t *, ssize_t); | |
121 | ssize_t (*ct_s16be)(const u_char *, size_t, u_char *, ssize_t *, ssize_t); | |
122 | ssize_t (*ct_u16be)(const u_char *, size_t, u_char *, ssize_t *, ssize_t); | |
123 | ssize_t (*ct_s16le)(const u_char *, size_t, u_char *, ssize_t *, ssize_t); | |
124 | ssize_t (*ct_u16le)(const u_char *, size_t, u_char *, ssize_t *, ssize_t); | |
125 | } TRANS; | |
126 | ||
127 | ||
128 | /* | |
129 | * Sound queue stuff, the heart of the driver | |
130 | */ | |
131 | ||
132 | struct sound_queue { | |
133 | /* buffers allocated for this queue */ | |
134 | int numBufs; /* real limits on what the user can have */ | |
135 | int bufSize; /* in bytes */ | |
136 | char **buffers; | |
137 | ||
138 | /* current parameters */ | |
139 | int locked ; /* params cannot be modified when != 0 */ | |
140 | int user_frags ; /* user requests this many */ | |
141 | int user_frag_size ; /* of this size */ | |
142 | int max_count; /* actual # fragments <= numBufs */ | |
143 | int block_size; /* internal block size in bytes */ | |
144 | int max_active; /* in-use fragments <= max_count */ | |
145 | ||
146 | /* it shouldn't be necessary to declare any of these volatile */ | |
147 | int front, rear, count; | |
148 | int rear_size; | |
149 | /* | |
150 | * The use of the playing field depends on the hardware | |
151 | * | |
152 | * Atari, PMac: The number of frames that are loaded/playing | |
153 | * | |
154 | * Amiga: Bit 0 is set: a frame is loaded | |
155 | * Bit 1 is set: a frame is playing | |
156 | */ | |
157 | int active; | |
158 | wait_queue_head_t action_queue, open_queue, sync_queue; | |
159 | int open_mode; | |
160 | int busy, syncing, xruns, died; | |
161 | }; | |
162 | ||
163 | #define SLEEP(queue) interruptible_sleep_on_timeout(&queue, HZ) | |
164 | #define WAKE_UP(queue) (wake_up_interruptible(&queue)) | |
165 | ||
166 | #endif /* _cs4218_h_ */ |