1#ifndef _dmasound_h_
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13#define _dmasound_h_
14
15#include <linux/types.h>
16
17#define SND_NDEVS 256
18#define SND_DEV_CTL 0
19#define SND_DEV_SEQ 1
20
21#define SND_DEV_MIDIN 2
22#define SND_DEV_DSP 3
23#define SND_DEV_AUDIO 4
24#define SND_DEV_DSP16 5
25#define SND_DEV_STATUS 6
26
27#define SND_DEV_SEQ2 8
28#define SND_DEV_SNDPROC 9
29#define SND_DEV_PSS SND_DEV_SNDPROC
30
31
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 __user *)(arg)); \
47 if (error) return error; \
48 } while (0)
49#define IOCTL_OUT(arg, ret) ioctl_return((int __user *)(arg), ret)
50
51static inline int ioctl_return(int __user *addr, int value)
52{
53 return value < 0 ? value : put_user(value, addr);
54}
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59
60
61#undef HAS_8BIT_TABLES
62
63#if defined(CONFIG_DMASOUND_ATARI) || defined(CONFIG_DMASOUND_ATARI_MODULE) ||\
64 defined(CONFIG_DMASOUND_PAULA) || defined(CONFIG_DMASOUND_PAULA_MODULE) ||\
65 defined(CONFIG_DMASOUND_Q40) || defined(CONFIG_DMASOUND_Q40_MODULE)
66#define HAS_8BIT_TABLES
67#define MIN_BUFFERS 4
68#define MIN_BUFSIZE (1<<12)
69#define MIN_FRAG_SIZE 8
70#define MAX_BUFSIZE (1<<17)
71#define MAX_FRAG_SIZE 15
72
73#else
74
75#define MIN_BUFFERS 2
76#define MIN_BUFSIZE (1<<8)
77#define MIN_FRAG_SIZE 8
78#define MAX_BUFSIZE (1<<18)
79#define MAX_FRAG_SIZE 16
80#endif
81
82#define DEFAULT_N_BUFFERS 4
83#define DEFAULT_BUFF_SIZE (1<<15)
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86
87
88
89extern int dmasound_init(void);
90#ifdef MODULE
91extern void dmasound_deinit(void);
92#else
93#define dmasound_deinit() do { } while (0)
94#endif
95
96
97
98typedef struct {
99 int format;
100 int stereo;
101 int size;
102 int speed;
103} SETTINGS;
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105
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107
108
109typedef struct {
110 const char *name;
111 const char *name2;
112 struct module *owner;
113 void *(*dma_alloc)(unsigned int, gfp_t);
114 void (*dma_free)(void *, unsigned int);
115 int (*irqinit)(void);
116#ifdef MODULE
117 void (*irqcleanup)(void);
118#endif
119 void (*init)(void);
120 void (*silence)(void);
121 int (*setFormat)(int);
122 int (*setVolume)(int);
123 int (*setBass)(int);
124 int (*setTreble)(int);
125 int (*setGain)(int);
126 void (*play)(void);
127 void (*record)(void);
128 void (*mixer_init)(void);
129 int (*mixer_ioctl)(u_int, u_long);
130 int (*write_sq_setup)(void);
131 int (*read_sq_setup)(void);
132 int (*sq_open)(fmode_t);
133 int (*state_info)(char *, size_t);
134 void (*abort_read)(void);
135 int min_dsp_speed;
136 int max_dsp_speed;
137 int version ;
138 int hardware_afmts ;
139
140 int capabilities ;
141 SETTINGS default_hard ;
142 SETTINGS default_soft ;
143} MACHINE;
144
145
146
147
148
149typedef struct {
150 ssize_t (*ct_ulaw)(const u_char __user *, size_t, u_char *, ssize_t *, ssize_t);
151 ssize_t (*ct_alaw)(const u_char __user *, size_t, u_char *, ssize_t *, ssize_t);
152 ssize_t (*ct_s8)(const u_char __user *, size_t, u_char *, ssize_t *, ssize_t);
153 ssize_t (*ct_u8)(const u_char __user *, size_t, u_char *, ssize_t *, ssize_t);
154 ssize_t (*ct_s16be)(const u_char __user *, size_t, u_char *, ssize_t *, ssize_t);
155 ssize_t (*ct_u16be)(const u_char __user *, size_t, u_char *, ssize_t *, ssize_t);
156 ssize_t (*ct_s16le)(const u_char __user *, size_t, u_char *, ssize_t *, ssize_t);
157 ssize_t (*ct_u16le)(const u_char __user *, size_t, u_char *, ssize_t *, ssize_t);
158} TRANS;
159
160struct sound_settings {
161 MACHINE mach;
162 SETTINGS hard;
163 SETTINGS soft;
164 SETTINGS dsp;
165 TRANS *trans_write;
166 int volume_left;
167 int volume_right;
168 int bass;
169 int treble;
170 int gain;
171 int minDev;
172 spinlock_t lock;
173};
174
175extern struct sound_settings dmasound;
176
177#ifdef HAS_8BIT_TABLES
178extern char dmasound_ulaw2dma8[];
179extern char dmasound_alaw2dma8[];
180#endif
181
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183
184
185
186static inline int dmasound_set_volume(int volume)
187{
188 return dmasound.mach.setVolume(volume);
189}
190
191static inline int dmasound_set_bass(int bass)
192{
193 return dmasound.mach.setBass ? dmasound.mach.setBass(bass) : 50;
194}
195
196static inline int dmasound_set_treble(int treble)
197{
198 return dmasound.mach.setTreble ? dmasound.mach.setTreble(treble) : 50;
199}
200
201static inline int dmasound_set_gain(int gain)
202{
203 return dmasound.mach.setGain ? dmasound.mach.setGain(gain) : 100;
204}
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209
210
211struct sound_queue {
212
213 int numBufs;
214 int bufSize;
215 char **buffers;
216
217
218 int locked ;
219 int user_frags ;
220 int user_frag_size ;
221 int max_count;
222 int block_size;
223 int max_active;
224
225
226 int front, rear, count;
227 int rear_size;
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235
236 int active;
237 wait_queue_head_t action_queue, open_queue, sync_queue;
238 int non_blocking;
239 int busy, syncing, xruns, died;
240};
241
242#define WAKE_UP(queue) (wake_up_interruptible(&queue))
243
244extern struct sound_queue dmasound_write_sq;
245#define write_sq dmasound_write_sq
246
247extern int dmasound_catchRadius;
248#define catchRadius dmasound_catchRadius
249
250
251
252
253#define BS_VAL 1
254
255#define SW_INPUT_VOLUME_SCALE 4
256#define SW_INPUT_VOLUME_DEFAULT (128 / SW_INPUT_VOLUME_SCALE)
257
258extern int expand_read_bal;
259extern uint software_input_volume;
260
261#endif
262