1999/1005/port/devaudio.c (diff list | history)

1999/0504/sys/src/9/port/devaudio.c:18,23 – 1999/1005/sys/src/9/port/devaudio.c:18,24 (short | long | prev | next)
1995/0119		Qdir = 0, Qaudio, Qvolume,
1999/1005		Qstatus,
1995/0119		Fmono = 1,
1995/0221		Fin = 2,
1999/0504/sys/src/9/port/devaudio.c:47,52 – 1999/1005/sys/src/9/port/devaudio.c:48,54
1995/0119		{ "audio", {Qaudio}, 0, 0666, "volume", {Qvolume}, 0, 0666,
1999/1005		"audiostat",{Qstatus}, 0, 0444,
1995/0119		}; struct Buf
1999/0504/sys/src/9/port/devaudio.c:76,81 – 1999/1005/sys/src/9/port/devaudio.c:78,85
1995/0221		int lovol[Nvol];
1995/0119		int major; /* SB16 major version number (sb 4) */ int minor; /* SB16 minor version number */
1999/1005		ulong totcount; /* how many bytes processed since open */ vlong tottime; /* time at which totcount bytes were processed */
1995/0119		Buf buf[Nbuf]; /* buffers and queues */
1995/0217		AQueue empty;
1999/0504/sys/src/9/port/devaudio.c:399,404 – 1999/1005/sys/src/9/port/devaudio.c:403,409
1995/0119		sbcmd(count>>8); audio.active = 1;
1999/1005		audio.tottime = todget(nil);
1995/0119		contindma();
1995/0214		iunlock(&blaster);
1995/0119		}
1999/0504/sys/src/9/port/devaudio.c:490,495 – 1999/1005/sys/src/9/port/devaudio.c:495,501
1998/0317		ess1688w(0xB8, x|0x05); audio.active = 1;
1999/1005		audio.tottime = todget(nil);
1998/0317		contindma(); iunlock(&blaster); }
1999/0504/sys/src/9/port/devaudio.c:516,521 – 1999/1005/sys/src/9/port/devaudio.c:522,529
1995/0119		if(stat & 2) {
1995/0214		ilock(&blaster); dummy = inb(blaster.clri16);
1999/1005		audio.totcount += Bufsize; audio.tottime = todget(nil);
1995/0119		contindma();
1995/0214		iunlock(&blaster);
1995/0119		audio.intr = 1;
1999/0504/sys/src/9/port/devaudio.c:538,543 – 1999/1005/sys/src/9/port/devaudio.c:546,553
1998/0317		if(audio.active){ ilock(&blaster);
1999/1005		audio.totcount += Bufsize; audio.tottime = todget(nil);
1998/0317		contindma(); dummy = inb(blaster.clri8); iunlock(&blaster);
1999/0504/sys/src/9/port/devaudio.c:625,630 – 1999/1005/sys/src/9/port/devaudio.c:635,642
1995/0119		audio.filling = 0; for(i=0; i<Nbuf; i++) putbuf(&audio.empty, &audio.buf[i]);
1999/1005		audio.totcount = 0; audio.tottime = 0LL;
1995/0214		iunlock(&blaster);
1995/0119		}
1999/0504/sys/src/9/port/devaudio.c:707,713 – 1999/1005/sys/src/9/port/devaudio.c:719,726
1995/0119		audioinit(void) {
1995/0214		ISAConf sbconf;
1995/0119		int i;
1999/1005		int i, x; static int irq[] = {2,5,7,10};
1995/0119
1995/0214		sbconf.port = 0x220;
1996/1025		sbconf.dma = Dma;
1999/0504/sys/src/9/port/devaudio.c:752,760 – 1999/1005/sys/src/9/port/devaudio.c:765,770
1998/0317		blaster.startdma = sb16startdma; blaster.intr = sb16intr;
1996/1024		seteisadma(blaster.dma, audiodmaintr);
1995/0214		setvec(Int0vec+sbconf.irq, pcaudiosbintr, 0);
1995/0119
1995/0214		audio.amode = Aclosed;
1995/0119		resetlevel();
1999/0504/sys/src/9/port/devaudio.c:789,795 – 1999/1005/sys/src/9/port/devaudio.c:799,811
1995/0119		mxvolume(); /* * set up irq/dma chans
1999/1005		* Attempt to set IRQ/DMA channels. * On old ISA boards, these registers are writable. * On Plug-n-Play boards, these are read-only. * * To accomodate both, we write to the registers, * but then use the contents in case the write is * disallowed.
1995/0119		*/ mxcmd(0x80, /* irq */
1995/0214		(sbconf.irq==2)? 1:
1999/0504/sys/src/9/port/devaudio.c:798,803 – 1999/1005/sys/src/9/port/devaudio.c:814,836
1995/0214		(sbconf.irq==10)? 8:
1995/0119		0);
1996/1024		mxcmd(0x81, 1<<blaster.dma); /* dma */
1999/1005		x = mxread(0x81); for(i=5; i<=7; i++) if(x & (1<<i)){ blaster.dma = i; break; } x = mxread(0x80); for(i=0; i<=3; i++) if(x & (1<<i)){ sbconf.irq = irq[i]; break; } seteisadma(blaster.dma, audiodmaintr); setvec(Int0vec+sbconf.irq, pcaudiosbintr, 0);
1995/0119		}
1997/0327		static Chan*
1999/0504/sys/src/9/port/devaudio.c:831,836 – 1999/1005/sys/src/9/port/devaudio.c:864,872
1995/0119		error(Eperm); break;
1999/1005		case Qstatus: if((omode&7) != OREAD) error(Eperm);
1995/0119		case Qvolume: case Qdir: break;
1999/0504/sys/src/9/port/devaudio.c:875,880 – 1999/1005/sys/src/9/port/devaudio.c:911,917
1995/0119		case Qdir: case Qvolume:
1999/1005		case Qstatus:
1995/0119		break; case Qaudio:
1999/0504/sys/src/9/port/devaudio.c:965,970 – 1999/1005/sys/src/9/port/devaudio.c:1002,1013
1995/0214		qunlock(&audio);
1995/0119		break;
1999/1005		case Qstatus: buf[0] = 0; snprint(buf, sizeof(buf), "bytes %lud\ntime %lld\n", audio.totcount, audio.tottime); return readstr(offset, a, n, buf);
1995/0119		case Qvolume: j = 0;
1995/0221		buf[0] = 0;
1999/0504/sys/src/9/port/devaudio.c:1004,1010 – 1999/1005/sys/src/9/port/devaudio.c:1047,1052
1995/0119		}
1995/0221		j += snprint(buf+j, sizeof(buf)-j, "\n");
1995/0119		}                  return readstr(offset, a, n, buf); } return n0-n;