path: root/drivers/net/saa9730.c

/*
 * Copyright (C) 2000, 2005  MIPS Technologies, Inc.  All rights reserved.
 *	Authors: Carsten Langgaard <carstenl@mips.com>
 *		 Maciej W. Rozycki <macro@mips.com>
 * Copyright (C) 2004 Ralf Baechle <ralf@linux-mips.org>
 *
 *  This program is free software; you can distribute it and/or modify it
 *  under the terms of the GNU General Public License (Version 2) as
 *  published by the Free Software Foundation.
 *
 *  This program is distributed in the hope 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.
 *
 * SAA9730 ethernet driver.
 *
 * Changes:
 * Angelo Dell'Aera <buffer@antifork.org> :	Conversion to the new PCI API
 *						(pci_driver).
 *						Conversion to spinlocks.
 *						Error handling fixes.
 */

#include <linux/init.h>
#include <linux/netdevice.h>
#include <linux/delay.h>
#include <linux/etherdevice.h>
#include <linux/module.h>
#include <linux/skbuff.h>
#include <linux/pci.h>
#include <linux/spinlock.h>
#include <linux/types.h>

#include <asm/addrspace.h>
#include <asm/io.h>

#include <asm/mips-boards/prom.h>

#include "saa9730.h"

#ifdef LAN_SAA9730_DEBUG
int lan_saa9730_debug = LAN_SAA9730_DEBUG;
#else
int lan_saa9730_debug;
#endif

#define DRV_MODULE_NAME "saa9730"

static struct pci_device_id saa9730_pci_tbl[] = {
	{ PCI_VENDOR_ID_PHILIPS, PCI_DEVICE_ID_PHILIPS_SAA9730,
	  PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0UL },
	{ 0, }
};

MODULE_DEVICE_TABLE(pci, saa9730_pci_tbl);

/* Non-zero only if the current card is a PCI with BIOS-set IRQ. */
static unsigned int pci_irq_line;

static void evm_saa9730_enable_lan_int(struct lan_saa9730_private *lp)
{
	outl(readl(&lp->evm_saa9730_regs->InterruptBlock1) | EVM_LAN_INT,
	     &lp->evm_saa9730_regs->InterruptBlock1);
	outl(readl(&lp->evm_saa9730_regs->InterruptStatus1) | EVM_LAN_INT,
	     &lp->evm_saa9730_regs->InterruptStatus1);
	outl(readl(&lp->evm_saa9730_regs->InterruptEnable1) | EVM_LAN_INT |
	     EVM_MASTER_EN, &lp->evm_saa9730_regs->InterruptEnable1);
}

static void evm_saa9730_disable_lan_int(struct lan_saa9730_private *lp)
{
	outl(readl(&lp->evm_saa9730_regs->InterruptBlock1) & ~EVM_LAN_INT,
	     &lp->evm_saa9730_regs->InterruptBlock1);
	outl(readl(&lp->evm_saa9730_regs->InterruptEnable1) & ~EVM_LAN_INT,
	     &lp->evm_saa9730_regs->InterruptEnable1);
}

static void evm_saa9730_clear_lan_int(struct lan_saa9730_private *lp)
{
	outl(EVM_LAN_INT, &lp->evm_saa9730_regs->InterruptStatus1);
}

static void evm_saa9730_block_lan_int(struct lan_saa9730_private *lp)
{
	outl(readl(&lp->evm_saa9730_regs->InterruptBlock1) & ~EVM_LAN_INT,
	     &lp->evm_saa9730_regs->InterruptBlock1);
}

static void evm_saa9730_unblock_lan_int(struct lan_saa9730_private *lp)
{
	outl(readl(&lp->evm_saa9730_regs->InterruptBlock1) | EVM_LAN_INT,
	     &lp->evm_saa9730_regs->InterruptBlock1);
}

static void __attribute_used__ show_saa9730_regs(struct lan_saa9730_private *lp)
{
	int i, j;
	printk("TxmBufferA = %p\n", lp->TxmBuffer[0][0]);
	printk("TxmBufferB = %p\n", lp->TxmBuffer[1][0]);
	printk("RcvBufferA = %p\n", lp->RcvBuffer[0][0]);
	printk("RcvBufferB = %p\n", lp->RcvBuffer[1][0]);
	for (i = 0; i < LAN_SAA9730_BUFFERS; i++) {
		for (j = 0; j < LAN_SAA9730_TXM_Q_SIZE; j++) {
			printk("TxmBuffer[%d][%d] = %x\n", i, j,
			       le32_to_cpu(*(unsigned int *)
					   lp->TxmBuffer[i][j]));
		}
	}
	for (i = 0; i