static long apc_ioctl(struct file *f, unsigned int cmd, unsigned long __arg)
{
__u8 inarg, __user *arg;
arg = (__u8 __user *) __arg;
lock_kernel();
switch (cmd) {
case APCIOCGFANCTL:
if (put_user(apc_readb(APC_FANCTL_REG) & APC_REGMASK, arg)) {
unlock_kernel();
return -EFAULT;
}
break;
case APCIOCGCPWR:
if (put_user(apc_readb(APC_CPOWER_REG) & APC_REGMASK, arg)) {
unlock_kernel();
return -EFAULT;
}
break;
case APCIOCGBPORT:
if (put_user(apc_readb(APC_BPORT_REG) & APC_BPMASK, arg)) {
unlock_kernel();
return -EFAULT;
}
break;
case APCIOCSFANCTL:
if (get_user(inarg, arg)) {
unlock_kernel();
return -EFAULT;
}
apc_writeb(inarg & APC_REGMASK, APC_FANCTL_REG);
break;
case APCIOCSCPWR:
if (get_user(inarg, arg)) {
unlock_kernel();
return -EFAULT;
}
apc_writeb(inarg & APC_REGMASK, APC_CPOWER_REG);
break;
case APCIOCSBPORT:
if (get_user(inarg, arg)) {
unlock_kernel();
return -EFAULT;
}
apc_writeb(inarg & APC_BPMASK, APC_BPORT_REG);
break;
default:
unlock_kernel();
return -EINVAL;
};
unlock_kernel();
return 0;
}
/*
* CPU idle callback function
* See .../arch/sparc/kernel/process.c
*/
void apc_swift_idle(void)
{
#ifdef APC_DEBUG_LED
set_auxio(0x00, AUXIO_LED);
#endif
apc_writeb(apc_readb(APC_IDLE_REG) | APC_IDLE_ON, APC_IDLE_REG);
#ifdef APC_DEBUG_LED
set_auxio(AUXIO_LED, 0x00);
#endif
}