static void pcireadCall(const iocshArgBuf *args)
{
pciread(args[0].ival, args[1].ival, args[2].ival);
}
void
soundcardinit(ushort addr)
{
uint tmp, cur, vendorID;
ushort vendorID1, vendorID2;
//Initializing the Audio I/O Space
tmp = pciread(addr, PCI_CONFIG_SPACE_STA_CMD);
pciwrite(addr, PCI_CONFIG_SPACE_STA_CMD, tmp | 0x5);
SOUND_NAMBA_DATA = pciread(addr, PCI_CONFIG_SPACE_NAMBA) & (~0x1);
SOUND_NABMBA_DATA = pciread(addr, PCI_CONFIG_SPACE_NABMBA) & (~0x1);
cprintf("AUDIO I/O Space initialized successfully!\n");
//Removing AC_RESET
outb(SOUND_NABMBA_DATA + NABMBA_GLOB_CNT, 0x2);
cprintf("AC_RESET removed successfully!\n");
//Reading Codec Ready Status
cur = 0;
cprintf("Waiting for Codec Ready Status...\n");
while (!(inw(SOUND_NABMBA_DATA + NABMBA_GLOB_STA) & 0X100) && cur < 1000)
{
cur++;
}
if (cur == 1000)
{
cprintf("\nAudio Init Failed\n");
return;
}
cprintf("Codec is ready!\n");
//Determine Audio Codec
tmp = inw(NAMBA_PCMV);
cprintf("%x\n", tmp);
outw(NAMBA_PCMV, 0x8000);
if (inw(NAMBA_PCMV) != 0x8000)
{
cprintf("Audio Codec Function not found!\n");
return;
}
outw(NAMBA_PCMV, tmp);
cprintf("Audio Codec Function is found, current volume is %x.\n", tmp);
//Reading the Audio Codec Vendor ID
vendorID1 = inw(SOUND_NAMBA_DATA + NAMBA_PCVID1);
vendorID2 = inw(SOUND_NAMBA_DATA + NAMBA_PCVID2);
cprintf("Audio Codec Vendor ID read successfully!\n");
//Programming the PCI Audio Subsystem ID
vendorID = (vendorID2 << 16) + vendorID1;
pciwrite(addr, PCI_CONFIG_SPACE_SID_SVID, vendorID);
//Initailize Interruption
initlock(&soundLock, "audio");
picenable(IRQ_SOUND);
ioapicenable(IRQ_SOUND, ncpu - 1);
outw(NAMBA_PCMV, 0x1f1f);
soundQueue = 0;
}
