#include <linux/module.h>
#include <linux/errno.h>
#include <linux/sched.h>
#include <linux/string.h>
#include <linux/init.h>
#include <linux/spinlock.h>
#include <linux/uaccess.h>
#include <linux/kernel.h>
#include <linux/vmalloc.h>
#include <linux/hwdd_aer.h>

#include <asm/uaccess.h>
#include <asm/io.h>
#include <linux/netapp_plat.h>


static struct port80_details port80_handlers;

static unsigned short port80_base = 0x80;
static unsigned short port180_base = 0x180;
static unsigned short sio_base_abs = 0x4E;
static unsigned short sio_base_car = 0x2E;

static int port80_writel(char *dev, u32 offset, u32 data )
{
   int i=0;
   unsigned char * ptr = (unsigned char *)&data;
   for(i=0;i<sizeof(u32);i++)
   {
	outb(*(ptr++), port80_base);
   }
   return 0;
}
static int port80_writew(char *dev, u32 offset, u16 data)
{
   int i=0;
   unsigned char * ptr = (unsigned char *)&data;
   for(i=0;i<sizeof(u16);i++)
   {
        outb(*(ptr++), port80_base);
   }
   return 0;
}

static int port80_writeb(char *dev, u32 offset, u8 data)
{
   outb(data, port80_base);
   return 0;
}


static int __init port80_init(void)
{
   unsigned short sio_base = 0x00;

   if(plat_main.is_absolut == 1)
   {
      sio_base = sio_base_abs;
   }
   else
   {
      sio_base = sio_base_car;
   }
   
   outb(0x7,sio_base);
   outb(0x0,(sio_base+1));
   outb(0x60,sio_base);
   outb(0x0,(sio_base+1));
   outb(0x61,sio_base);
   outb(0x80,(sio_base+1)); 
   outb(0x30,sio_base);
   outb(0x1,(sio_base+1));
   
   outb(0x0,port180_base);
   outb(0x2F,port80_base);
   
   printk(KERN_INFO "port80: SIO initialisation done \n");
   port80_handlers.writel = port80_writel;
   port80_handlers.writew = port80_writew;
   port80_handlers.writeb = port80_writeb;
   plat_register_port80(&port80_handlers);
   printk(KERN_INFO "port80: init done \n");
   return 0;
}
static void __exit port80_cleanup(void)
{
   plat_unregister_port80();
}

module_init(port80_init);
module_exit(port80_cleanup);

MODULE_AUTHOR("NetApp, <dl-hwdev-diag-core@netapp.com>");
MODULE_DESCRIPTION("Port80 Driver");
MODULE_LICENSE("GPL");