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comparison src/audio/mint/SDL_mintaudio.h @ 1895:c121d94672cb

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SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
author Sam Lantinga <slouken@libsdl.org>
date Mon, 10 Jul 2006 21:04:37 +0000
parents a11c13151840
children d48ead2d2ba5
comparison
equal deleted inserted replaced
1894:c69cee13dd76 1895:c121d94672cb
35 35
36 /* Hidden "this" pointer for the audio functions */ 36 /* Hidden "this" pointer for the audio functions */
37 #define _THIS SDL_AudioDevice *this 37 #define _THIS SDL_AudioDevice *this
38 38
39 /* 16 predivisors with 3 clocks max. */ 39 /* 16 predivisors with 3 clocks max. */
40 #define MINTAUDIO_maxfreqs (16*3) 40 #define MINTAUDIO_maxfreqs (16*3)
41 41
42 typedef struct { 42 typedef struct
43 Uint32 frequency; 43 {
44 Uint32 masterclock; 44 Uint32 frequency;
45 Uint32 predivisor; 45 Uint32 masterclock;
46 int gpio_bits; /* in case of external clock */ 46 Uint32 predivisor;
47 int gpio_bits; /* in case of external clock */
47 } mint_frequency_t; 48 } mint_frequency_t;
48 49
49 struct SDL_PrivateAudioData { 50 struct SDL_PrivateAudioData
50 mint_frequency_t frequencies[MINTAUDIO_maxfreqs]; 51 {
51 int freq_count; /* Number of frequencies in the array */ 52 mint_frequency_t frequencies[MINTAUDIO_maxfreqs];
52 int numfreq; /* Number of selected frequency */ 53 int freq_count; /* Number of frequencies in the array */
54 int numfreq; /* Number of selected frequency */
53 }; 55 };
54 56
55 /* Old variable names */ 57 /* Old variable names */
56 58
57 #define MINTAUDIO_frequencies (this->hidden->frequencies) 59 #define MINTAUDIO_frequencies (this->hidden->frequencies)
58 #define MINTAUDIO_freqcount (this->hidden->freq_count) 60 #define MINTAUDIO_freqcount (this->hidden->freq_count)
59 #define MINTAUDIO_numfreq (this->hidden->numfreq) 61 #define MINTAUDIO_numfreq (this->hidden->numfreq)
60 62
61 /* _MCH cookie (values>>16) */ 63 /* _MCH cookie (values>>16) */
62 enum { 64 enum
63 MCH_ST=0, 65 {
64 MCH_STE, 66 MCH_ST = 0,
65 MCH_TT, 67 MCH_STE,
66 MCH_F30, 68 MCH_TT,
67 MCH_CLONE, 69 MCH_F30,
68 MCH_ARANYM 70 MCH_CLONE,
71 MCH_ARANYM
69 }; 72 };
70 73
71 /* Master clocks for replay frequencies */ 74 /* Master clocks for replay frequencies */
72 #define MASTERCLOCK_STE 8010666 /* Not sure of this one */ 75 #define MASTERCLOCK_STE 8010666 /* Not sure of this one */
73 #define MASTERCLOCK_TT 16107953 /* Not sure of this one */ 76 #define MASTERCLOCK_TT 16107953 /* Not sure of this one */
74 #define MASTERCLOCK_FALCON1 25175000 77 #define MASTERCLOCK_FALCON1 25175000
75 #define MASTERCLOCK_FALCON2 32000000 /* Only usable for DSP56K */ 78 #define MASTERCLOCK_FALCON2 32000000 /* Only usable for DSP56K */
76 #define MASTERCLOCK_FALCONEXT -1 /* Clock on DSP56K port, unknown */ 79 #define MASTERCLOCK_FALCONEXT -1 /* Clock on DSP56K port, unknown */
77 #define MASTERCLOCK_44K 22579200 /* Standard clock for 44.1 Khz */ 80 #define MASTERCLOCK_44K 22579200 /* Standard clock for 44.1 Khz */
78 #define MASTERCLOCK_48K 24576000 /* Standard clock for 48 Khz */ 81 #define MASTERCLOCK_48K 24576000 /* Standard clock for 48 Khz */
79 82
80 /* Master clock predivisors */ 83 /* Master clock predivisors */
81 #define MASTERPREDIV_STE 160 84 #define MASTERPREDIV_STE 160
82 #define MASTERPREDIV_TT 320 85 #define MASTERPREDIV_TT 320
83 #define MASTERPREDIV_FALCON 256 86 #define MASTERPREDIV_FALCON 256
84 #define MASTERPREDIV_MILAN 256 87 #define MASTERPREDIV_MILAN 256
85 88
86 /* MFP 68901 interrupt sources */ 89 /* MFP 68901 interrupt sources */
87 enum { 90 enum
88 MFP_PARALLEL=0, 91 {
89 MFP_DCD, 92 MFP_PARALLEL = 0,
90 MFP_CTS, 93 MFP_DCD,
91 MFP_BITBLT, 94 MFP_CTS,
92 MFP_TIMERD, 95 MFP_BITBLT,
93 MFP_BAUDRATE=MFP_TIMERD, 96 MFP_TIMERD,
94 MFP_TIMERC, 97 MFP_BAUDRATE = MFP_TIMERD,
95 MFP_200HZ=MFP_TIMERC, 98 MFP_TIMERC,
96 MFP_ACIA, 99 MFP_200HZ = MFP_TIMERC,
97 MFP_DISK, 100 MFP_ACIA,
98 MFP_TIMERB, 101 MFP_DISK,
99 MFP_HBLANK=MFP_TIMERB, 102 MFP_TIMERB,
100 MFP_TERR, 103 MFP_HBLANK = MFP_TIMERB,
101 MFP_TBE, 104 MFP_TERR,
102 MFP_RERR, 105 MFP_TBE,
103 MFP_RBF, 106 MFP_RERR,
104 MFP_TIMERA, 107 MFP_RBF,
105 MFP_DMASOUND=MFP_TIMERA, 108 MFP_TIMERA,
106 MFP_RING, 109 MFP_DMASOUND = MFP_TIMERA,
107 MFP_MONODETECT 110 MFP_RING,
111 MFP_MONODETECT
108 }; 112 };
109 113
110 /* Xbtimer() timers */ 114 /* Xbtimer() timers */
111 enum { 115 enum
112 XB_TIMERA=0, 116 {
113 XB_TIMERB, 117 XB_TIMERA = 0,
114 XB_TIMERC, 118 XB_TIMERB,
115 XB_TIMERD 119 XB_TIMERC,
120 XB_TIMERD
116 }; 121 };
117 122
118 /* Variables */ 123 /* Variables */
119 extern SDL_AudioDevice *SDL_MintAudio_device; 124 extern SDL_AudioDevice *SDL_MintAudio_device;
120 extern Uint8 *SDL_MintAudio_audiobuf[2]; /* Pointers to buffers */ 125 extern Uint8 *SDL_MintAudio_audiobuf[2]; /* Pointers to buffers */
121 extern unsigned long SDL_MintAudio_audiosize; /* Length of audio buffer=spec->size */ 126 extern unsigned long SDL_MintAudio_audiosize; /* Length of audio buffer=spec->size */
122 extern volatile unsigned short SDL_MintAudio_numbuf; /* Buffer to play */ 127 extern volatile unsigned short SDL_MintAudio_numbuf; /* Buffer to play */
123 extern volatile unsigned short SDL_MintAudio_mutex; 128 extern volatile unsigned short SDL_MintAudio_mutex;
124 extern cookie_stfa_t *SDL_MintAudio_stfa; 129 extern cookie_stfa_t *SDL_MintAudio_stfa;
125 extern volatile unsigned long SDL_MintAudio_clocktics; 130 extern volatile unsigned long SDL_MintAudio_clocktics;
126 131
127 /* MiNT thread variables */ 132 /* MiNT thread variables */
128 extern SDL_bool SDL_MintAudio_mint_present; 133 extern SDL_bool SDL_MintAudio_mint_present;
129 extern SDL_bool SDL_MintAudio_quit_thread; 134 extern SDL_bool SDL_MintAudio_quit_thread;
130 extern SDL_bool SDL_MintAudio_thread_finished; 135 extern SDL_bool SDL_MintAudio_thread_finished;
131 extern long SDL_MintAudio_thread_pid; 136 extern long SDL_MintAudio_thread_pid;
132 137
133 /* Functions */ 138 /* Functions */
134 void SDL_MintAudio_Callback(void); 139 void SDL_MintAudio_Callback(void);
135 void SDL_MintAudio_AddFrequency(_THIS, Uint32 frequency, Uint32 clock, 140 void SDL_MintAudio_AddFrequency(_THIS, Uint32 frequency, Uint32 clock,
136 Uint32 prediv, int gpio_bits); 141 Uint32 prediv, int gpio_bits);
137 int SDL_MintAudio_SearchFrequency(_THIS, int desired_freq); 142 int SDL_MintAudio_SearchFrequency(_THIS, int desired_freq);
138 143
139 /* MiNT thread functions */ 144 /* MiNT thread functions */
140 int SDL_MintAudio_Thread(long param); 145 int SDL_MintAudio_Thread(long param);
141 void SDL_MintAudio_WaitThread(void); 146 void SDL_MintAudio_WaitThread(void);
147 void SDL_MintAudio_XbiosInterrupt(void); 152 void SDL_MintAudio_XbiosInterrupt(void);
148 void SDL_MintAudio_Dma8Interrupt(void); 153 void SDL_MintAudio_Dma8Interrupt(void);
149 void SDL_MintAudio_StfaInterrupt(void); 154 void SDL_MintAudio_StfaInterrupt(void);
150 155
151 #endif /* _SDL_mintaudio_h */ 156 #endif /* _SDL_mintaudio_h */
157 /* vi: set ts=4 sw=4 expandtab: */