uint32_t
PciBus::Read(uint32_t bus, uint32_t device, uint32_t function, uint32_t offset, uint8_t size)
{
uint32_t value;
io_outd(0xCF8, 0x80000000 | (bus << 16) | (device << 11) | (function << 8) | (offset & ~3));
switch (size)
{
case 1:
value = io_inb(0xCFC + (offset & 3));
break;
case 2:
value = io_inw(0xCFC + (offset & 2));
break;
case 4:
value = io_ind(0xCFC);
break;
default:
return 0xFF;
}
return value;
}
static void
MouseCallback(regs_t *reg)
{
switch(Cycle)
{
case 0:
Byte[0] = io_inb(0x60);
Cycle++;
break;
case 1:
Byte[1] = io_inw(0x60);
Cycle++;
break;
case 2:
Byte[2] = io_inw(0x60);
Cycle = 0;
//printf("%d %d\n", Byte[1], Byte[2]);
break;
}
}
/*
* Performs a PIO read.
*/
static void ata_do_pio_read(ata_driver_t *drv, void* dest, uint32_t num_words, uint8_t channel) {
ata_reg_write(drv, channel, ATA_REG_CONTROL, 0x80 | drv->channels[channel].nIEN);
uint16_t *dest_ptr = (uint16_t *) dest;
// Read from PIO data port
static uint16_t temp;
for(int i = 0; i < num_words; i++) {
temp = io_inw(drv->channels[channel].base);
*dest_ptr++ = temp;
}
ata_reg_write(drv, channel, ATA_REG_CONTROL, drv->channels[channel].nIEN);
}
