- NDK 0.98, now with versionned headers. Too many changes to list, see the TinyKRNL...
[reactos.git] / reactos / drivers / multimedia / audio / sound / wave.c
1 /*
2 * COPYRIGHT: See COPYING in the top level directory
3 * PROJECT: ReactOS kernel
4 * FILE: mkernel/modules/sound/sound.c
5 * PURPOSE: SoundBlaster 16 Driver
6 * PROGRAMMER: Snatched from David Welch (welch@mcmail.com)
7 * Modified for Soundblaster by Robert Bergkvist (fragdance@hotmail.com)
8 * UPDATE HISTORY:
9 * ??/??/??: Created
10 *
11 */
12
13 /* FUNCTIONS **************************************************************/
14
15 #include <ntddk.h>
16 #include <string.h>
17 #include <devices.h>
18
19 #include "sb16.h"
20 #include "dsp.h"
21 #include "mixer.h"
22 #include "in.h"
23 #include "wave.h"
24
25 #define NDEBUG
26 #include <debug.h>
27
28 SB16 sb16;
29
30 ULONG OldIRQ;
31 PKINTERRUPT IrqObject;
32
33 static BOOLEAN STDCALL DMAOutputISR(PKINTERRUPT Interrupt, PVOID ServiceContext)
34 {
35 DPRINT1("interrupt\n");
36 return FALSE;
37 }
38
39 void sb16_play(WAVE_HDR* wave)
40 {
41 ULONG MappedIrq;
42 KIRQL Dirql;
43 KAFFINITY Affinity;
44 PKINTERRUPT IrqObject;
45 unsigned int newmask;
46
47 unsigned int i;
48 unsigned int tmp[255];
49 i=0;
50 dump_wav(wave);
51 do
52 {
53 // tmp[i++]=get_dma_page(0x0fffff);
54 // DPRINT1("0x%x ",tmp[i-1]);
55 }
56 while((tmp[i-1]&0xffff)!=0);
57 // free_page((tmp[0]),i-1);
58 sb16.buffer=((unsigned char*)tmp[i-1]);
59
60 /*
61 * Because this is used by alomost every subsystem including irqs it
62 * must be atomic. The following code sequence disables interrupts after
63 * saving the previous state of the interrupt flag
64 */
65
66 _disable();
67
68 memcpy(sb16.buffer,(&wave->data),wave->dLen);
69
70
71 MappedIrq = HalGetInterruptVector(Internal,0,0,8+sb16.irq,&Dirql,&Affinity);
72
73
74
75 IoConnectInterrupt(&IrqObject,DMAOutputISR,0,NULL,MappedIrq,Dirql,Dirql,0,FALSE,Affinity,FALSE);
76
77 // mask=inb(0x21);
78 newmask=((int)1<<sb16.irq);
79 // outb(0x21,(mask&~newmask));
80
81 // Restore the interrupt flag
82 _enable();
83
84
85
86 // disable_dma(sb16.dma8);
87 //outb(0x0a,5);
88 // clear_dma_ff(1);
89 //outb(0xc,0);
90 // set_dma_count(1,wave->dLen);
91 //set_dma_mode(1,DMA_MODE_WRITE);
92 //outb(0xb,0x49);
93 //outb(0x3,(wave->dLen)&0xff);
94 //outb(0x3,((unsigned int)(wave->dLen)>>8)&0xff);
95 //set_dma_addr(sb16.dma8,(unsigned int)sb16.buffer);
96 //outb(0x83,(((unsigned int)(sb16.buffer-IDMAP_BASE)>>16))&0xf);
97 //outb(0x2,((unsigned int)sb16.buffer&0xff));
98 //outb(0x2,(((unsigned int)(sb16.buffer-IDMAP_BASE)>>8))&0xff);
99 //enable_dma(sb16.dma8);
100 //outb(0xa,1);
101
102 write_dsp(sb16.base,0x00D1);
103
104 write_dsp(sb16.base,0x40);
105 write_dsp(sb16.base,((unsigned char)256-(1000000/wave->nSamplesPerSec)));
106
107 // outb(sb16.base + 4, (int) 0xa);
108 // outb(sb16.base + 5, (int) 0x00);
109
110 // outb(sb16.base + 4, (int) 4);
111 // outb(sb16.base + 5, (int) 0xFF);
112
113 // outb(sb16.base + 4, (int) 0x22);
114 // outb(sb16.base + 5, (int) 0xFF);
115
116 write_dsp(sb16.base,0x14);
117 write_dsp(sb16.base,(wave->dLen&0x00ff));
118 write_dsp(sb16.base,((wave->dLen)&0xff00)>>8);
119
120 // write_dsp(sb16.base,0xc0);
121 // write_dsp(sb16.base,0x0);
122 // OldIRQ=HalGetInterruptVector(Internal,0,0,irq+8,&irql,&affinity);
123 // DPRINT1("OldIRQ: 0x%x\n",OldIRQ);
124
125 // status=IoConnectInterrupt(&IrqObject,playRoutine,0,NULL,OldIRQ,irql,irql,0,FALSE,affinity,FALSE);
126 // if(status!=STATUS_SUCCESS) DPRINT1("Couldn't set irq\n");
127 // else DPRINT1("IRQ set\n");
128
129 }
130
131 void dump_wav(WAVE_HDR* wave)
132 {
133 DPRINT1("wave.rID: %c%c%c%c\n",wave->rID[0],wave->rID[1],wave->rID[2],wave->rID[3]);
134 DPRINT1("wave.rLen: 0x%x\n",wave->rLen);
135 DPRINT1("wave.wID: %c%c%c%c\n",wave->wID[0],wave->wID[1],wave->wID[2],wave->wID[3]);
136 DPRINT1("wave.fID: %c%c%c%c\n",wave->fID[0],wave->fID[1],wave->fID[2],wave->fID[3]);
137 DPRINT1("wave.fLen: 0x%x\n",wave->fLen);
138 DPRINT1("wave.wFormatTag: 0x%x\n",wave->wFormatTag);
139 DPRINT1("wave.nChannels: 0x%x\n",wave->nChannels);
140 DPRINT1("wave.nSamplesPerSec: 0x%x\n",wave->nSamplesPerSec);
141 DPRINT1("wave.nAvgBytesPerSec: 0x%x\n",wave->nAvgBytesPerSec);
142 DPRINT1("wave.nBlockAlign: 0x%x\n",wave->nBlockAlign);
143 DPRINT1("wave.FormatSpecific: 0x%x\n",wave->FormatSpecific);
144 DPRINT1("wave.dID: %c%c%c%c\n",wave->dID[0],wave->dID[1],wave->dID[2],wave->dID[3]);
145 DPRINT1("wave.dLen: 0x%x\n",wave->dLen);
146 }
147
148 BOOLEAN playRoutine(PKINTERRUPT Interrupt,PVOID ServiceContext)
149 {
150 return FALSE;
151 }