int ssvcan_irq[2]={-1,-1};
unsigned long ssvcan_base=0x0;
+static can_spinlock_t ssv_port_lock=SPIN_LOCK_UNLOCKED;
+
/* IO_RANGE is the io-memory range that gets reserved, please adjust according
* your hardware. Example: #define IO_RANGE 0x100 for i82527 chips or
* #define IO_RANGE 0x20 for sja1000 chips.
chip->msgobj[objnr]->obj_base_addr=
chip->chip_base_addr+(objnr+1)*0x10;
- chip->msgobj[objnr]->flags=0;
return 0;
}
want to read in a first time. In a second time we read the
data */
unsigned char ret;
+ can_spin_irqflags_t flags;
if((address-ssvcan_base)<0x100)
{
- disable_irq(ssvcan_irq[0]);
+ can_spin_lock_irqsave(&ssv_port_lock,flags);
outb(address-ssvcan_base, ssvcan_base);
ret=inb(ssvcan_base+1);
- enable_irq(ssvcan_irq[0]);
+ can_spin_unlock_irqrestore(&ssv_port_lock,flags);
}
else
{
- disable_irq(ssvcan_irq[1]);
+ can_spin_lock_irqsave(&ssv_port_lock,flags);
outb(address-ssvcan_base-0x100, ssvcan_base+0x02);
ret=inb(ssvcan_base+1+0x02);
- enable_irq(ssvcan_irq[1]);
+ can_spin_unlock_irqrestore(&ssv_port_lock,flags);
}
return ret;