Changed data size from byte to unsigned for write_register indirect call

[lincan.git] / lincan / src / pcccan.c

diff --git a/lincan/src/pcccan.c b/lincan/src/pcccan.c
index 64e6b700a9fd55c4cc9831d4222d0fbce5c9f1ed..b9407316befa2ab5f81604d5e9270efadc4ac06d 100644 (file)
--- a/lincan/src/pcccan.c
+++ b/lincan/src/pcccan.c
@@ -20,6 +20,8 @@
 int pcccan_irq=-1;
 unsigned long pcccan_base=0x0;
 
+static can_spinlock_t pcccan_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
@@ -251,12 +253,13 @@ int pcccan_program_irq(struct candevice_t *candev)
  * Return Value: The function does not return a value
  * File: src/pcccan.c
  */
-void pcccan_write_register(unsigned char data, unsigned long address)
+void pcccan_write_register(unsigned data, unsigned long address)
 {
-       can_disable_irq(pcccan_irq);
+       can_spin_irqflags_t flags;
+       can_spin_lock_irqsave(&pcccan_port_lock,flags);
        outb(address - pcccan_base, pcccan_base+1);
        outb(data, pcccan_base+6);
-       can_enable_irq(pcccan_irq);
+       can_spin_unlock_irqrestore(&pcccan_port_lock,flags);
 }
 
 /**
@@ -272,10 +275,11 @@ void pcccan_write_register(unsigned char data, unsigned long address)
 unsigned pcccan_read_register(unsigned long address)
 {
        unsigned ret;
-       can_disable_irq(pcccan_irq);
+       can_spin_irqflags_t flags;
+       can_spin_lock_irqsave(&pcccan_port_lock,flags);
        outb(address - pcccan_base, pcccan_base+1);
        ret=inb(pcccan_base+2);
-       can_enable_irq(pcccan_irq);
+       can_spin_unlock_irqrestore(&pcccan_port_lock,flags);
        return ret;
 
 }