/* ethcontrol.c - ethcontrol, ethIrqEnable, ethIrqDisable */

#include 

/*------------------------------------------------------------------------
 * ethcontrol - implement control function for an eth device
 *------------------------------------------------------------------------
 */
devcall ethcontrol(
        struct  dentry  *devptr,        /* entry in device switch table */
        int32   func,                   /* control function             */
        int32   arg1,                   /* argument 1, if needed        */
        int32   arg2                    /* argument 2, if needed        */
        )
{
        struct  ethcblk *ethptr;        /* pointer to control block     */
        uint32 rar_low, rar_high;
        uint8 *addr;


        ethptr = ðertab[devptr->dvminor];

        switch (func) {

                /* Get MAC address */

                case ETH_CTRL_GET_MAC:
                        memcpy((byte *)arg1, ethptr->devAddress, 
                                        ETH_ADDR_LEN);
                        break;

                case ETH_CTRL_SET_MAC:
                        addr = (uint8 *)arg1;
                        rar_low = ((uint32) addr[0] |
                                  ((uint32) addr[1] << 8) |
                                  ((uint32) addr[2] << 16) | 
                                  ((uint32) addr[3] << 24));

                        rar_high = ((uint32) addr[4] | 
                                   ((uint32) addr[5] << 8));

                        if (rar_low || rar_high)
                                rar_high |= E1000_RAH_AV;

                        eth_io_writel(ethptr->iobase, E1000_RAL(arg2), 
                                        rar_low);
                        eth_io_flush(ethptr->iobase);
                        eth_io_writel(ethptr->iobase, E1000_RAH(arg2), 
                                        rar_high);
                        eth_io_flush(ethptr->iobase);
                        
                        break;

                default:
                        return SYSERR;
        }

        return OK;
}

/*------------------------------------------------------------------------
 * ethIrqDisable - Mask off interrupt generation on the NIC
 *------------------------------------------------------------------------
 */
void ethIrqDisable(
        struct  ethcblk *ethptr
        )
{
        eth_io_writel(ethptr->iobase, E1000_IMC, ~0);

        eth_io_flush(ethptr->iobase);
}

/*------------------------------------------------------------------------
 * eth_irq_enable - Enable default interrupt generation settings
 *------------------------------------------------------------------------
 */
void ethIrqEnable(
        struct  ethcblk *ethptr
        )
{
        eth_io_writel(ethptr->iobase, E1000_IMS, E1000_IMS_ENABLE_MASK);

        eth_io_flush(ethptr->iobase);
}