path: root/drivers/net/arm/ether00.c

/*
 *  drivers/net/ether00.c
 *
 *  Copyright (C) 2001 Altera Corporation
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation; either version 2 of the License, or
 * (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
 */

/* includes */
#include <linux/config.h>
#include <linux/pci.h>
#include <linux/sched.h>
#include <linux/netdevice.h>
#include <linux/skbuff.h>
#include <linux/etherdevice.h>
#include <linux/module.h>
#include <linux/tqueue.h>
#include <linux/mtd/mtd.h>
#include <linux/pld/pld_hotswap.h>
#include <asm/arch/excalibur.h>
#include <asm/arch/hardware.h>
#include <asm/irq.h>
#include <asm/io.h>
#include <asm/sizes.h>

#include <asm/arch/ether00.h>
#include <asm/arch/tdkphy.h>


MODULE_AUTHOR("Clive Davies");
MODULE_DESCRIPTION("Altera Ether00 IP core driver");
MODULE_LICENSE("GPL");

#define PKT_BUF_SZ 1540 /* Size of each rx buffer */
#define ETH_NR 4 /* Number of MACs this driver supports */

#define DEBUG(x)

#define __dma_va(x) (unsigned int)((unsigned int)priv->dma_data+(((unsigned int)(x))&(EXC_SPSRAM_BLOCK0_SIZE-1)))
#define __dma_pa(x) (unsigned int)(EXC_SPSRAM_BLOCK0_BASE+(((unsigned int)(x))-(unsigned int)priv->dma_data))

#define ETHER00_BASE	0
#define	ETHER00_TYPE
#define ETHER00_NAME "ether00"
#define MAC_REG_SIZE 0x400 /* size of MAC register area */



/* typedefs */

/* The definition of the driver control structure */

#define RX_NUM_BUFF     10
#define RX_NUM_FDESC    10
#define TX_NUM_FDESC    10

struct tx_fda_ent{
	FDA_DESC  fd;
	BUF_DESC  bd;
	BUF_DESC  pad;
};
struct rx_fda_ent{
	FDA_DESC  fd;
	BUF_DESC  bd;
	BUF_DESC  pad;
};
struct rx_blist_ent{
	FDA_DESC  fd;
	BUF_DESC  bd;
	BUF_DESC  pad;
};
struct net_priv
{
	struct net_device_stats stats;
	struct sk_buff* skb;
	void* dma_data;
	struct rx_blist_ent*  rx_blist_vp;
	struct rx_fda_ent* rx_fda_ptr;
	struct tx_fda_ent* tx_fdalist_vp;
	struct tq_struct  tq_memupdate;
	unsigned char   memupdate_scheduled;
	unsigned char   rx_disabled;
	unsigned char   queue_stopped;
	spinlock_t rx_lock;
};

static const char vendor_id[2]={0x07,0xed};

#ifdef ETHER00_DEBUG

/* Dump (most) registers for debugging puposes */

static void dump_regs(struct net_device *dev){
	struct net_priv* priv=dev->priv;
	unsigned int* i;

	printk("\n RX free descriptor area:\n");

	for(i=(unsigned int*)priv->rx_fda_ptr;
	    i<((unsigned int*)(priv->rx_fda_ptr+RX_NUM_FDESC));){
		printk("%#8x %#8x %#8x %#8x\n",*i,*(i+1),*(i+2),*(i+3));
		i+=4;
	}

	printk("\n RX buffer list:\n");

	for(i=(unsigned int*)priv->rx_blist_vp;
	    i<((unsigned int*)(priv->rx_blist_vp+RX_NUM_BUFF));){
		printk("%#8x %#8x %#8x %#8x\n",*i,*(i+1),*(i+2),*(i+3));
		i+=4;
	}

	printk("\n TX frame descriptor list:\n");

	for(i=(unsigned int*)priv->tx_fdalist_vp;
	    i<((unsigned int*)(priv->tx_fdalist_vp+TX_NUM_FDESC));){
		printk("%#8x %#8x %#8x %#8x\n",*i,*(i+1),*(i+2),*(i+3));
		i+=4;
	}

	printk("\ndma ctl=%#x\n",readw(ETHER_DMA_CTL(dev->base_addr)));
	printk("txfrmptr=%#x\n",readw(ETHER_TXFRMPTR(dev->base_addr)));
	printk("txthrsh=%#x\n",readw(ETHER_TXTHRSH(dev->base_addr)));
	printk("txpollctr=%#x\n",readw(ETHER_TXPOLLCTR(dev->base_addr)));
	printk("blfrmptr=%#x\n",readw(ETHER_BLFRMPTR(dev->base_addr)));
	printk("rxfragsize=%#x\n",readw(ETHER_RXFRAGSIZE(dev->base_addr)));
	printk("tx_int_en=%#x\n",readw(ETHER_INT_EN(dev->base_addr)));
	printk("fda_bas=%#x\n",readw(ETHER_FDA_BAS(dev->base_addr)));
	printk("fda_lim=%#x\n",readw(ETHER_FDA_LIM(dev->base_addr)));
	printk("int_src=%#x\n",readw(ETHER_INT_SRC(dev->base_addr)));
	printk("pausecnt=%#x\n",readw(ETHER_PAUSECNT(dev->base_addr)));
	printk("rempaucnt=%#x\n",readw(ETHER_REMPAUCNT(dev->base_addr)));
	printk("txconfrmstat=%#x\n",readw(ETHER_TXCONFRMSTAT(dev->base_addr)));
	printk("mac_ctl=%#x\n",readw(ETHER_MAC_CTL(dev->base_addr)));
	printk("arc_ctl=%#x\n",readw(ETHER_ARC_CTL(dev->base_addr)));
	printk("tx_ctl=%#x\n",readw(ETHER_TX_CTL(dev->base_addr)));