[net-next-2.6.git] / drivers / net / zorro8390.c

/*
 *  Amiga Linux/m68k and Linux/PPC Zorro NS8390 Ethernet Driver
 *
 *  (C) Copyright 1998-2000 by some Elitist 680x0 Users(TM)
 *
 *  ---------------------------------------------------------------------------
 *
 *  This program is based on all the other NE2000 drivers for Linux
 *
 *  ---------------------------------------------------------------------------
 *
 *  This file is subject to the terms and conditions of the GNU General Public
 *  License.  See the file COPYING in the main directory of the Linux
 *  distribution for more details.
 *
 *  ---------------------------------------------------------------------------
 *
 *  The Ariadne II and X-Surf are Zorro-II boards containing Realtek RTL8019AS
 *  Ethernet Controllers.
 */

#include <linux/module.h>
#include <linux/kernel.h>
#include <linux/errno.h>
#include <linux/init.h>
#include <linux/delay.h>
#include <linux/netdevice.h>
#include <linux/etherdevice.h>
#include <linux/zorro.h>
#include <linux/jiffies.h>

#include <asm/system.h>
#include <asm/irq.h>
#include <asm/amigaints.h>
#include <asm/amigahw.h>

#define EI_SHIFT(x)	(ei_local->reg_offset[x])
#define ei_inb(port)   in_8(port)
#define ei_outb(val,port)  out_8(port,val)
#define ei_inb_p(port)   in_8(port)
#define ei_outb_p(val,port)  out_8(port,val)

static const char version[] =
    "8390.c:v1.10cvs 9/23/94 Donald Becker (becker@cesdis.gsfc.nasa.gov)\n";

#include "lib8390.c"

#define DRV_NAME	"zorro8390"

#define NE_BASE		(dev->base_addr)
#define NE_CMD		(0x00*2)
#define NE_DATAPORT	(0x10*2)	/* NatSemi-defined port window offset. */
#define NE_RESET	(0x1f*2)	/* Issue a read to reset, a write to clear. */
#define NE_IO_EXTENT	(0x20*2)

#define NE_EN0_ISR	(0x07*2)
#define NE_EN0_DCFG	(0x0e*2)

#define NE_EN0_RSARLO	(0x08*2)
#define NE_EN0_RSARHI	(0x09*2)
#define NE_EN0_RCNTLO	(0x0a*2)
#define NE_EN0_RXCR	(0x0c*2)
#define NE_EN0_TXCR	(0x0d*2)
#define NE_EN0_RCNTHI	(0x0b*2)
#define NE_EN0_IMR	(0x0f*2)

#define NESM_START_PG	0x40	/* First page of TX buffer */
#define NESM_STOP_PG	0x80	/* Last page +1 of RX ring */


#define WORDSWAP(a)	((((a)>>8)&0xff) | ((a)<<8))


static struct card_info {
    zorro_id id;
    const char *name;
    unsigned int offset;
} cards[] __devinitdata = {
    { ZORRO_PROD_VILLAGE_TRONIC_ARIADNE2, "Ariadne II", 0x0600 },
    { ZORRO_PROD_INDIVIDUAL_COMPUTERS_X_SURF, "X-Surf", 0x8600 },
};

static int __devinit zorro8390_init_one(struct zorro_dev *z,
					const struct zorro_device_id *ent);
static int __devinit zorro8390_init(struct net_device *dev,
				    unsigned long board, const char *name,
				    unsigned long ioaddr);
static int zorro8390_open(struct net_device *dev);
static int zorro8390_close(struct net_device *dev);
static void zorro8390_reset_8390(struct net_device *dev);
static void zorro8390_get_8390_hdr(struct net_device *dev,
				   struct e8390_pkt_hdr *hdr, int ring_page);
static void zorro8390_block_input(struct net_device *dev, int count,
				  struct sk_buff *skb, int ring_offset);
static void zorro8390_block_output(struct net_device *dev, const int count,
				   const unsigned char *buf,
				   const int start_page);
static void __devexit zorro8390_remove_one(struct zorro_dev *z);

static struct zorro_device_id zorro8390_zorro_tbl[] __devinitdata = {
    { ZORRO_PROD_VILLAGE_TRONIC_ARIADNE2, },
    { ZORRO_PROD_INDIVIDUAL_COMPUTERS_X_SURF, },
    { 0 }
};

static struct zorro_driver zorro8390_driver = {
    .name	= "zorro8390",
    .id_table	= zorro8390_zorro_tbl,
    .probe	= zorro8390_init_one,
    .remove	= __devexit_p(zorro8390_remove_one),
};

static int __devinit zorro8390_init_one(struct zorro_dev *z,
					const struct zorro_device_id *ent)
{
    struct net_device *dev;
    unsigned long board, ioaddr;
    int err, i;

    for (i = ARRAY_SIZE(cards)-1; i >= 0; i--)
	if (z->id == cards[i].id)
	    break;
    board = z->resource.start;
    ioaddr = board+cards[i].offset;
    dev = alloc_ei_netdev();
    if (!dev)
	return -ENOMEM;
    if (!request_mem_region(ioaddr, NE_IO_EXTENT*2, DRV_NAME)) {
	free_netdev(dev);
	return -EBUSY;
    }
    if ((err = zorro8390_init(dev, board, cards[i].name,
			      ZTWO_VADDR(ioaddr)))) {
	release_mem_region(ioaddr, NE_IO_EXTENT*2);
	free_netdev(dev);
	return err;
    }
    zorro_set_drvdata(z, dev);
    return 0;
}

static const struct net_device_ops zorro8390_netdev_ops = {
	.ndo_open		= zorro8390_open,
	.ndo_stop		= zorro8390_close,
	.ndo_start_xmit		= ei_start_xmit,
	.ndo_tx_timeout		= ei_tx_timeout,
	.ndo_get_stats		= ei_get_stats,
	.ndo_set_multicast_list = ei_set_multicast_list,
	.ndo_validate_addr	= eth_validate_addr,
	.ndo_change_mtu		= eth_change_mtu,
#ifdef CONFIG_NET_POLL_CONTROLLER
	.ndo_poll_controller	= ei_poll,
#endif
};

static int __devinit zorro8390_init(struct net_device *dev,
				    unsigned long board, const char *name,
				    unsigned long ioaddr)
{
    int i;
    int err;
    unsigned char SA_prom[32];
    int start_page, stop_page;
    static u32 zorro8390_offsets[16] = {
	0x00, 0x02, 0x04, 0x06, 0x08, 0x0a, 0x0c, 0x0e,
	0x10, 0x12, 0x14, 0x16, 0x18, 0x1a, 0x1c, 0x1e,
    };

    /* Reset card. Who knows what dain-bramaged state it was left in. */
    {
	unsigned long reset_start_time = jiffies;

	z_writeb(z_readb(ioaddr + NE_RESET), ioaddr + NE_RESET);

	while ((z_readb(ioaddr + NE_EN0_ISR) & ENISR_RESET) == 0)
	    if (time_after(jiffies, reset_start_time + 2*HZ/100)) {
		printk(KERN_WARNING " not found (no reset ack).\n");
		return -ENODEV;
	    }

	z_writeb(0xff, ioaddr + NE_EN0_ISR);		/* Ack all intr. */
    }

    /* Read the 16 bytes of station address PROM.
       We must first initialize registers, similar to NS8390_init(eifdev, 0).
       We can't reliably read the SAPROM address without this.
       (I learned the hard way!). */
    {
	struct {
	    u32 value;
	    u32 offset;
	} program_seq[] = {
	    {E8390_NODMA+E8390_PAGE0+E8390_STOP, NE_CMD}, /* Select page 0*/
	    {0x48,	NE_EN0_DCFG},	/* Set byte-wide (0x48) access. */
	    {0x00,	NE_EN0_RCNTLO},	/* Clear the count regs. */
	    {0x00,	NE_EN0_RCNTHI},
	    {0x00,	NE_EN0_IMR},	/* Mask completion irq. */
	    {0xFF,	NE_EN0_ISR},
	    {E8390_RXOFF, NE_EN0_RXCR},	/* 0x20  Set to monitor */
	    {E8390_TXOFF, NE_EN0_TXCR},	/* 0x02  and loopback mode. */
	    {32,	NE_EN0_RCNTLO},
	    {0x00,	NE_EN0_RCNTHI},
	    {0x00,	NE_EN0_RSARLO},	/* DMA starting at 0x0000. */
	    {0x00,	NE_EN0_RSARHI},
	    {E8390_RREAD+E8390_START, NE_CMD},
	};
	for (i = 0; i < ARRAY_SIZE(program_seq); i++) {
	    z_writeb(program_seq[i].value, ioaddr + program_seq[i].offset);
	}
    }
    for (i = 0; i < 16; i++) {
	SA_prom[i] = z_readb(ioaddr + NE_DATAPORT);
	(void)z_readb(ioaddr + NE_DATAPORT);
    }

    /* We must set the 8390 for word mode. */
    z_writeb(0x49, ioaddr + NE_EN0_DCFG);
    start_page = NESM_START_PG;
    stop_page = NESM_STOP_PG;

    dev->base_addr = ioaddr;
    dev->irq = IRQ_AMIGA_PORTS;

    /* Install the Interrupt handler */
    i = request_irq(IRQ_AMIGA_PORTS, __ei_interrupt, IRQF_SHARED, DRV_NAME, dev);
    if (i) return i;

    for(i = 0; i < ETHER_ADDR_LEN; i++)
	dev->dev_addr[i] = SA_prom[i];

#ifdef DEBUG
    printk("%pM", dev->dev_addr);
#endif

    ei_status.name = name;
    ei_status.tx_start_page = start_page;
    ei_status.stop_page = stop_page;
    ei_status.word16 = 1;

    ei_status.rx_start_page = start_page + TX_PAGES;

    ei_status.reset_8390 = &zorro8390_reset_8390;
    ei_status.block_input = &zorro8390_block_input;
    ei_status.block_output = &zorro8390_block_output;
    ei_status.get_8390_hdr = &zorro8390_get_8390_hdr;
    ei_status.reg_offset = zorro8390_offsets;

    dev->netdev_ops = &zorro8390_netdev_ops;
    __NS8390_init(dev, 0);
    err = register_netdev(dev);
    if (err) {
	free_irq(IRQ_AMIGA_PORTS, dev);
	return err;
    }

    printk(KERN_INFO "%s: %s at 0x%08lx, Ethernet Address %pM\n",
	   dev->name, name, board, dev->dev_addr);

    return 0;
}

static int zorro8390_open(struct net_device *dev)
{
    __ei_open(dev);
    return 0;
}

static int zorro8390_close(struct net_device *dev)
{
    if (ei_debug > 1)
	printk(KERN_DEBUG "%s: Shutting down ethercard.\n", dev->name);
    __ei_close(dev);
    return 0;
}

/* Hard reset the card.  This used to pause for the same period that a
   8390 reset command required, but that shouldn't be necessary. */
static void zorro8390_reset_8390(struct net_device *dev)
{
    unsigned long reset_start_time = jiffies;

    if (ei_debug > 1)
	printk(KERN_DEBUG "resetting the 8390 t=%ld...\n", jiffies);

    z_writeb(z_readb(NE_BASE + NE_RESET), NE_BASE + NE_RESET);

    ei_status.txing = 0;
    ei_status.dmaing = 0;

    /* This check _should_not_ be necessary, omit eventually. */
    while ((z_readb(NE_BASE+NE_EN0_ISR) & ENISR_RESET) == 0)
	if (time_after(jiffies, reset_start_time + 2*HZ/100)) {
	    printk(KERN_WARNING "%s: ne_reset_8390() did not complete.\n",
		   dev->name);
	    break;
	}
    z_writeb(ENISR_RESET, NE_BASE + NE_EN0_ISR);	/* Ack intr. */
}

/* Grab the 8390 specific header. Similar to the block_input routine, but
   we don't need to be concerned with ring wrap as the header will be at
   the start of a page, so we optimize accordingly. */

static void zorro8390_get_8390_hdr(struct net_device *dev,
				   struct e8390_pkt_hdr *hdr, int ring_page)
{
    int nic_base = dev->base_addr;
    int cnt;
    short *ptrs;

    /* This *shouldn't* happen. If it does, it's the last thing you'll see */
    if (ei_status.dmaing) {
	printk(KERN_ERR "%s: DMAing conflict in ne_get_8390_hdr "
	   "[DMAstat:%d][irqlock:%d].\n", dev->name, ei_status.dmaing,
	   ei_status.irqlock);
	return;
    }

    ei_status.dmaing |= 0x01;
    z_writeb(E8390_NODMA+E8390_PAGE0+E8390_START, nic_base+ NE_CMD);
    z_writeb(ENISR_RDC, nic_base + NE_EN0_ISR);
    z_writeb(sizeof(struct e8390_pkt_hdr), nic_base + NE_EN0_RCNTLO);
    z_writeb(0, nic_base + NE_EN0_RCNTHI);
    z_writeb(0, nic_base + NE_EN0_RSARLO);		/* On page boundary */
    z_writeb(ring_page, nic_base + NE_EN0_RSARHI);
    z_writeb(E8390_RREAD+E8390_START, nic_base + NE_CMD);

    ptrs = (short*)hdr;
    for (cnt = 0; cnt < (sizeof(struct e8390_pkt_hdr)>>1); cnt++)
	*ptrs++ = z_readw(NE_BASE + NE_DATAPORT);

    z_writeb(ENISR_RDC, nic_base + NE_EN0_ISR);	/* Ack intr. */

    hdr->count = WORDSWAP(hdr->count);

    ei_status.dmaing &= ~0x01;
}

/* Block input and output, similar to the Crynwr packet driver.  If you
   are porting to a new ethercard, look at the packet driver source for hints.
   The NEx000 doesn't share the on-board packet memory -- you have to put
   the packet out through the "remote DMA" dataport using z_writeb. */

static void zorro8390_block_input(struct net_device *dev, int count,
				 struct sk_buff *skb, int ring_offset)
{
    int nic_base = dev->base_addr;
    char *buf = skb->data;
    short *ptrs;
    int cnt;

    /* This *shouldn't* happen. If it does, it's the last thing you'll see */
    if (ei_status.dmaing) {
	printk(KERN_ERR "%s: DMAing conflict in ne_block_input "
	   "[DMAstat:%d][irqlock:%d].\n",
	   dev->name, ei_status.dmaing, ei_status.irqlock);
	return;
    }
    ei_status.dmaing |= 0x01;
    z_writeb(E8390_NODMA+E8390_PAGE0+E8390_START, nic_base+ NE_CMD);
    z_writeb(ENISR_RDC, nic_base + NE_EN0_ISR);
    z_writeb(count & 0xff, nic_base + NE_EN0_RCNTLO);
    z_writeb(count >> 8, nic_base + NE_EN0_RCNTHI);
    z_writeb(ring_offset & 0xff, nic_base + NE_EN0_RSARLO);
    z_writeb(ring_offset >> 8, nic_base + NE_EN0_RSARHI);
    z_writeb(E8390_RREAD+E8390_START, nic_base + NE_CMD);
    ptrs = (short*)buf;
    for (cnt = 0; cnt < (count>>1); cnt++)
	*ptrs++ = z_readw(NE_BASE + NE_DATAPORT);
    if (count & 0x01)
	buf[count-1] = z_readb(NE_BASE + NE_DATAPORT);

    z_writeb(ENISR_RDC, nic_base + NE_EN0_ISR);	/* Ack intr. */
    ei_status.dmaing &= ~0x01;
}

static void zorro8390_block_output(struct net_device *dev, int count,
				   const unsigned char *buf,
				   const int start_page)
{
    int nic_base = NE_BASE;
    unsigned long dma_start;
    short *ptrs;
    int cnt;

    /* Round the count up for word writes.  Do we need to do this?
       What effect will an odd byte count have on the 8390?
       I should check someday. */
    if (count & 0x01)
	count++;

    /* This *shouldn't* happen. If it does, it's the last thing you'll see */
    if (ei_status.dmaing) {
	printk(KERN_ERR "%s: DMAing conflict in ne_block_output."
	   "[DMAstat:%d][irqlock:%d]\n", dev->name, ei_status.dmaing,
	   ei_status.irqlock);
	return;
    }
    ei_status.dmaing |= 0x01;
    /* We should already be in page 0, but to be safe... */
    z_writeb(E8390_PAGE0+E8390_START+E8390_NODMA, nic_base + NE_CMD);

    z_writeb(ENISR_RDC, nic_base + NE_EN0_ISR);

   /* Now the normal output. */
    z_writeb(count & 0xff, nic_base + NE_EN0_RCNTLO);
    z_writeb(count >> 8,   nic_base + NE_EN0_RCNTHI);
    z_writeb(0x00, nic_base + NE_EN0_RSARLO);
    z_writeb(start_page, nic_base + NE_EN0_RSARHI);

    z_writeb(E8390_RWRITE+E8390_START, nic_base + NE_CMD);
    ptrs = (short*)buf;
    for (cnt = 0; cnt < count>>1; cnt++)
	z_writew(*ptrs++, NE_BASE+NE_DATAPORT);

    dma_start = jiffies;

    while ((z_readb(NE_BASE + NE_EN0_ISR) & ENISR_RDC) == 0)
	if (time_after(jiffies, dma_start + 2*HZ/100)) {	/* 20ms */
		printk(KERN_ERR "%s: timeout waiting for Tx RDC.\n",
		       dev->name);
		zorro8390_reset_8390(dev);
		__NS8390_init(dev,1);
		break;
	}

    z_writeb(ENISR_RDC, nic_base + NE_EN0_ISR);	/* Ack intr. */
    ei_status.dmaing &= ~0x01;
    return;
}

static void __devexit zorro8390_remove_one(struct zorro_dev *z)
{
    struct net_device *dev = zorro_get_drvdata(z);

    unregister_netdev(dev);
    free_irq(IRQ_AMIGA_PORTS, dev);
    release_mem_region(ZTWO_PADDR(dev->base_addr), NE_IO_EXTENT*2);
    free_netdev(dev);
}

static int __init zorro8390_init_module(void)
{
    return zorro_register_driver(&zorro8390_driver);
}

static void __exit zorro8390_cleanup_module(void)
{
    zorro_unregister_driver(&zorro8390_driver);
}

module_init(zorro8390_init_module);
module_exit(zorro8390_cleanup_module);

MODULE_LICENSE("GPL");
Commit	Line	Data
1da177e4 LT	1	/*
	2	* Amiga Linux/m68k and Linux/PPC Zorro NS8390 Ethernet Driver
	3	*
	4	* (C) Copyright 1998-2000 by some Elitist 680x0 Users(TM)
	5	*
	6	* ---------------------------------------------------------------------------
	7	*
	8	* This program is based on all the other NE2000 drivers for Linux
	9	*
	10	* ---------------------------------------------------------------------------
	11	*
	12	* This file is subject to the terms and conditions of the GNU General Public
	13	* License. See the file COPYING in the main directory of the Linux
	14	* distribution for more details.
	15	*
	16	* ---------------------------------------------------------------------------
	17	*
	18	* The Ariadne II and X-Surf are Zorro-II boards containing Realtek RTL8019AS
	19	* Ethernet Controllers.
	20	*/
	21
	22	#include <linux/module.h>
	23	#include <linux/kernel.h>
	24	#include <linux/errno.h>
	25	#include <linux/init.h>
	26	#include <linux/delay.h>
	27	#include <linux/netdevice.h>
	28	#include <linux/etherdevice.h>
	29	#include <linux/zorro.h>
ff5688ae	30	#include <linux/jiffies.h>
1da177e4 LT	31
	32	#include <asm/system.h>
	33	#include <asm/irq.h>
	34	#include <asm/amigaints.h>
	35	#include <asm/amigahw.h>
	36
8c6270f9 AV	37	#define EI_SHIFT(x) (ei_local->reg_offset[x])
	38	#define ei_inb(port) in_8(port)
	39	#define ei_outb(val,port) out_8(port,val)
	40	#define ei_inb_p(port) in_8(port)
	41	#define ei_outb_p(val,port) out_8(port,val)
1da177e4	42
8c6270f9 AV	43	static const char version[] =
	44	"8390.c:v1.10cvs 9/23/94 Donald Becker (becker@cesdis.gsfc.nasa.gov)\n";
	45
	46	#include "lib8390.c"
1da177e4 LT	47
	48	#define DRV_NAME "zorro8390"
	49
	50	#define NE_BASE (dev->base_addr)
	51	#define NE_CMD (0x00*2)
	52	#define NE_DATAPORT (0x102) / NatSemi-defined port window offset. */
	53	#define NE_RESET (0x1f2) / Issue a read to reset, a write to clear. */
	54	#define NE_IO_EXTENT (0x20*2)
	55
	56	#define NE_EN0_ISR (0x07*2)
	57	#define NE_EN0_DCFG (0x0e*2)
	58
	59	#define NE_EN0_RSARLO (0x08*2)
	60	#define NE_EN0_RSARHI (0x09*2)
	61	#define NE_EN0_RCNTLO (0x0a*2)
	62	#define NE_EN0_RXCR (0x0c*2)
	63	#define NE_EN0_TXCR (0x0d*2)
	64	#define NE_EN0_RCNTHI (0x0b*2)
	65	#define NE_EN0_IMR (0x0f*2)
	66
	67	#define NESM_START_PG 0x40 /* First page of TX buffer */
	68	#define NESM_STOP_PG 0x80 /* Last page +1 of RX ring */
	69
	70
	71	#define WORDSWAP(a) ((((a)>>8)&0xff) \| ((a)<<8))
	72
	73
	74	static struct card_info {
	75	zorro_id id;
	76	const char *name;
	77	unsigned int offset;
	78	} cards[] __devinitdata = {
	79	{ ZORRO_PROD_VILLAGE_TRONIC_ARIADNE2, "Ariadne II", 0x0600 },
	80	{ ZORRO_PROD_INDIVIDUAL_COMPUTERS_X_SURF, "X-Surf", 0x8600 },
	81	};
	82
	83	static int __devinit zorro8390_init_one(struct zorro_dev *z,
	84	const struct zorro_device_id *ent);
	85	static int __devinit zorro8390_init(struct net_device *dev,
	86	unsigned long board, const char *name,
	87	unsigned long ioaddr);
	88	static int zorro8390_open(struct net_device *dev);
	89	static int zorro8390_close(struct net_device *dev);
	90	static void zorro8390_reset_8390(struct net_device *dev);
	91	static void zorro8390_get_8390_hdr(struct net_device *dev,
	92	struct e8390_pkt_hdr *hdr, int ring_page);
	93	static void zorro8390_block_input(struct net_device *dev, int count,
	94	struct sk_buff *skb, int ring_offset);
	95	static void zorro8390_block_output(struct net_device *dev, const int count,
	96	const unsigned char *buf,
	97	const int start_page);
	98	static void __devexit zorro8390_remove_one(struct zorro_dev *z);
	99
	100	static struct zorro_device_id zorro8390_zorro_tbl[] __devinitdata = {
	101	{ ZORRO_PROD_VILLAGE_TRONIC_ARIADNE2, },
	102	{ ZORRO_PROD_INDIVIDUAL_COMPUTERS_X_SURF, },
	103	{ 0 }
	104	};
	105
	106	static struct zorro_driver zorro8390_driver = {
	107	.name = "zorro8390",
	108	.id_table = zorro8390_zorro_tbl,
	109	.probe = zorro8390_init_one,
	110	.remove = __devexit_p(zorro8390_remove_one),
111	};
112
113	static int __devinit zorro8390_init_one(struct zorro_dev *z,
114	const struct zorro_device_id *ent)
115	{
116	struct net_device *dev;
117	unsigned long board, ioaddr;
118	int err, i;
119
120	for (i = ARRAY_SIZE(cards)-1; i >= 0; i--)
121	if (z->id == cards[i].id)
122	break;
123	board = z->resource.start;
124	ioaddr = board+cards[i].offset;
b6114794	125	dev = alloc_ei_netdev();
1da177e4 LT	126	if (!dev)
1da177e4 LT	127	return -ENOMEM;
1da177e4 LT	128	if (!request_mem_region(ioaddr, NE_IO_EXTENT*2, DRV_NAME)) {
	129	free_netdev(dev);
	130	return -EBUSY;
	131	}
	132	if ((err = zorro8390_init(dev, board, cards[i].name,
	133	ZTWO_VADDR(ioaddr)))) {
	134	release_mem_region(ioaddr, NE_IO_EXTENT*2);
	135	free_netdev(dev);
	136	return err;
	137	}
	138	zorro_set_drvdata(z, dev);
	139	return 0;
	140	}
	141
b6114794 SH	142	static const struct net_device_ops zorro8390_netdev_ops = {
	143	.ndo_open = zorro8390_open,
	144	.ndo_stop = zorro8390_close,
	145	.ndo_start_xmit = ei_start_xmit,
	146	.ndo_tx_timeout = ei_tx_timeout,
	147	.ndo_get_stats = ei_get_stats,
	148	.ndo_set_multicast_list = ei_set_multicast_list,
	149	.ndo_validate_addr = eth_validate_addr,
	150	.ndo_change_mtu = eth_change_mtu,
	151	#ifdef CONFIG_NET_POLL_CONTROLLER
	152	.ndo_poll_controller = ei_poll,
	153	#endif
	154	};
	155
1da177e4 LT	156	static int __devinit zorro8390_init(struct net_device *dev,
	157	unsigned long board, const char *name,
	158	unsigned long ioaddr)
	159	{
	160	int i;
	161	int err;
	162	unsigned char SA_prom[32];
	163	int start_page, stop_page;
	164	static u32 zorro8390_offsets[16] = {
	165	0x00, 0x02, 0x04, 0x06, 0x08, 0x0a, 0x0c, 0x0e,
	166	0x10, 0x12, 0x14, 0x16, 0x18, 0x1a, 0x1c, 0x1e,
	167	};
	168
	169	/* Reset card. Who knows what dain-bramaged state it was left in. */
	170	{
	171	unsigned long reset_start_time = jiffies;
	172
	173	z_writeb(z_readb(ioaddr + NE_RESET), ioaddr + NE_RESET);
	174
	175	while ((z_readb(ioaddr + NE_EN0_ISR) & ENISR_RESET) == 0)
ff5688ae	176	if (time_after(jiffies, reset_start_time + 2*HZ/100)) {
1da177e4 LT	177	printk(KERN_WARNING " not found (no reset ack).\n");
	178	return -ENODEV;
	179	}
	180
	181	z_writeb(0xff, ioaddr + NE_EN0_ISR); /* Ack all intr. */
	182	}
	183
	184	/* Read the 16 bytes of station address PROM.
	185	We must first initialize registers, similar to NS8390_init(eifdev, 0).
	186	We can't reliably read the SAPROM address without this.
	187	(I learned the hard way!). */
	188	{
	189	struct {
	190	u32 value;
	191	u32 offset;
	192	} program_seq[] = {
	193	{E8390_NODMA+E8390_PAGE0+E8390_STOP, NE_CMD}, /* Select page 0*/
	194	{0x48, NE_EN0_DCFG}, /* Set byte-wide (0x48) access. */
	195	{0x00, NE_EN0_RCNTLO}, /* Clear the count regs. */
	196	{0x00, NE_EN0_RCNTHI},
	197	{0x00, NE_EN0_IMR}, /* Mask completion irq. */
	198	{0xFF, NE_EN0_ISR},
	199	{E8390_RXOFF, NE_EN0_RXCR}, /* 0x20 Set to monitor */
	200	{E8390_TXOFF, NE_EN0_TXCR}, /* 0x02 and loopback mode. */
	201	{32, NE_EN0_RCNTLO},
	202	{0x00, NE_EN0_RCNTHI},
	203	{0x00, NE_EN0_RSARLO}, /* DMA starting at 0x0000. */
	204	{0x00, NE_EN0_RSARHI},
	205	{E8390_RREAD+E8390_START, NE_CMD},
	206	};
ff8ac609	207	for (i = 0; i < ARRAY_SIZE(program_seq); i++) {
1da177e4 LT	208	z_writeb(program_seq[i].value, ioaddr + program_seq[i].offset);
	209	}
	210	}
	211	for (i = 0; i < 16; i++) {
	212	SA_prom[i] = z_readb(ioaddr + NE_DATAPORT);
	213	(void)z_readb(ioaddr + NE_DATAPORT);
	214	}
	215
	216	/* We must set the 8390 for word mode. */
	217	z_writeb(0x49, ioaddr + NE_EN0_DCFG);
	218	start_page = NESM_START_PG;
	219	stop_page = NESM_STOP_PG;
	220
	221	dev->base_addr = ioaddr;
	222	dev->irq = IRQ_AMIGA_PORTS;
	223
	224	/* Install the Interrupt handler */
8c6270f9	225	i = request_irq(IRQ_AMIGA_PORTS, __ei_interrupt, IRQF_SHARED, DRV_NAME, dev);
1da177e4 LT	226	if (i) return i;
1da177e4 LT	227
0795af57 JP	228	for(i = 0; i < ETHER_ADDR_LEN; i++)
	229	dev->dev_addr[i] = SA_prom[i];
	230
1da177e4	231	#ifdef DEBUG
e174961c	232	printk("%pM", dev->dev_addr);
1da177e4	233	#endif
1da177e4 LT	234
	235	ei_status.name = name;
	236	ei_status.tx_start_page = start_page;
	237	ei_status.stop_page = stop_page;
	238	ei_status.word16 = 1;
	239
	240	ei_status.rx_start_page = start_page + TX_PAGES;
	241
	242	ei_status.reset_8390 = &zorro8390_reset_8390;
	243	ei_status.block_input = &zorro8390_block_input;
	244	ei_status.block_output = &zorro8390_block_output;
	245	ei_status.get_8390_hdr = &zorro8390_get_8390_hdr;
	246	ei_status.reg_offset = zorro8390_offsets;
1da177e4	247
b6114794	248	dev->netdev_ops = &zorro8390_netdev_ops;
8c6270f9	249	__NS8390_init(dev, 0);
1da177e4 LT	250	err = register_netdev(dev);
	251	if (err) {
	252	free_irq(IRQ_AMIGA_PORTS, dev);
	253	return err;
	254	}
	255
e174961c JB	256	printk(KERN_INFO "%s: %s at 0x%08lx, Ethernet Address %pM\n",
e174961c JB	257	dev->name, name, board, dev->dev_addr);
1da177e4 LT	258
	259	return 0;
	260	}
	261
	262	static int zorro8390_open(struct net_device *dev)
	263	{
8c6270f9	264	__ei_open(dev);
1da177e4 LT	265	return 0;
	266	}
	267
	268	static int zorro8390_close(struct net_device *dev)
	269	{
	270	if (ei_debug > 1)
	271	printk(KERN_DEBUG "%s: Shutting down ethercard.\n", dev->name);
8c6270f9	272	__ei_close(dev);
1da177e4 LT	273	return 0;
	274	}
	275
	276	/* Hard reset the card. This used to pause for the same period that a
	277	8390 reset command required, but that shouldn't be necessary. */
	278	static void zorro8390_reset_8390(struct net_device *dev)
	279	{
	280	unsigned long reset_start_time = jiffies;
	281
	282	if (ei_debug > 1)
	283	printk(KERN_DEBUG "resetting the 8390 t=%ld...\n", jiffies);
	284
	285	z_writeb(z_readb(NE_BASE + NE_RESET), NE_BASE + NE_RESET);
	286
	287	ei_status.txing = 0;
	288	ei_status.dmaing = 0;
	289
	290	/* This check _should_not_ be necessary, omit eventually. */
	291	while ((z_readb(NE_BASE+NE_EN0_ISR) & ENISR_RESET) == 0)
ff5688ae	292	if (time_after(jiffies, reset_start_time + 2*HZ/100)) {
1da177e4 LT	293	printk(KERN_WARNING "%s: ne_reset_8390() did not complete.\n",
	294	dev->name);
	295	break;
	296	}
	297	z_writeb(ENISR_RESET, NE_BASE + NE_EN0_ISR); /* Ack intr. */
	298	}
	299
	300	/* Grab the 8390 specific header. Similar to the block_input routine, but
	301	we don't need to be concerned with ring wrap as the header will be at
	302	the start of a page, so we optimize accordingly. */
	303
	304	static void zorro8390_get_8390_hdr(struct net_device *dev,
	305	struct e8390_pkt_hdr *hdr, int ring_page)
	306	{
	307	int nic_base = dev->base_addr;
	308	int cnt;
	309	short *ptrs;
	310
	311	/* This shouldn't happen. If it does, it's the last thing you'll see */
	312	if (ei_status.dmaing) {
	313	printk(KERN_ERR "%s: DMAing conflict in ne_get_8390_hdr "
	314	"[DMAstat:%d][irqlock:%d].\n", dev->name, ei_status.dmaing,
	315	ei_status.irqlock);
	316	return;
	317	}
	318
	319	ei_status.dmaing \|= 0x01;
	320	z_writeb(E8390_NODMA+E8390_PAGE0+E8390_START, nic_base+ NE_CMD);
	321	z_writeb(ENISR_RDC, nic_base + NE_EN0_ISR);
	322	z_writeb(sizeof(struct e8390_pkt_hdr), nic_base + NE_EN0_RCNTLO);
	323	z_writeb(0, nic_base + NE_EN0_RCNTHI);
	324	z_writeb(0, nic_base + NE_EN0_RSARLO); /* On page boundary */
	325	z_writeb(ring_page, nic_base + NE_EN0_RSARHI);
	326	z_writeb(E8390_RREAD+E8390_START, nic_base + NE_CMD);
	327
	328	ptrs = (short*)hdr;
	329	for (cnt = 0; cnt < (sizeof(struct e8390_pkt_hdr)>>1); cnt++)
	330	*ptrs++ = z_readw(NE_BASE + NE_DATAPORT);
	331
	332	z_writeb(ENISR_RDC, nic_base + NE_EN0_ISR); /* Ack intr. */
	333
	334	hdr->count = WORDSWAP(hdr->count);
	335
	336	ei_status.dmaing &= ~0x01;
	337	}
	338
	339	/* Block input and output, similar to the Crynwr packet driver. If you
	340	are porting to a new ethercard, look at the packet driver source for hints.
	341	The NEx000 doesn't share the on-board packet memory -- you have to put
	342	the packet out through the "remote DMA" dataport using z_writeb. */
	343
	344	static void zorro8390_block_input(struct net_device *dev, int count,
	345	struct sk_buff *skb, int ring_offset)
	346	{
	347	int nic_base = dev->base_addr;
	348	char *buf = skb->data;
	349	short *ptrs;
	350	int cnt;
	351
	352	/* This shouldn't happen. If it does, it's the last thing you'll see */
	353	if (ei_status.dmaing) {
	354	printk(KERN_ERR "%s: DMAing conflict in ne_block_input "
	355	"[DMAstat:%d][irqlock:%d].\n",
	356	dev->name, ei_status.dmaing, ei_status.irqlock);
357	return;
358	}
359	ei_status.dmaing \|= 0x01;
360	z_writeb(E8390_NODMA+E8390_PAGE0+E8390_START, nic_base+ NE_CMD);
361	z_writeb(ENISR_RDC, nic_base + NE_EN0_ISR);
362	z_writeb(count & 0xff, nic_base + NE_EN0_RCNTLO);
363	z_writeb(count >> 8, nic_base + NE_EN0_RCNTHI);
364	z_writeb(ring_offset & 0xff, nic_base + NE_EN0_RSARLO);
365	z_writeb(ring_offset >> 8, nic_base + NE_EN0_RSARHI);
366	z_writeb(E8390_RREAD+E8390_START, nic_base + NE_CMD);
367	ptrs = (short*)buf;
368	for (cnt = 0; cnt < (count>>1); cnt++)
369	*ptrs++ = z_readw(NE_BASE + NE_DATAPORT);
370	if (count & 0x01)
371	buf[count-1] = z_readb(NE_BASE + NE_DATAPORT);
372
373	z_writeb(ENISR_RDC, nic_base + NE_EN0_ISR); /* Ack intr. */
374	ei_status.dmaing &= ~0x01;
375	}
376
377	static void zorro8390_block_output(struct net_device *dev, int count,
378	const unsigned char *buf,
379	const int start_page)
380	{
381	int nic_base = NE_BASE;
382	unsigned long dma_start;
383	short *ptrs;
384	int cnt;
385
386	/* Round the count up for word writes. Do we need to do this?
387	What effect will an odd byte count have on the 8390?
388	I should check someday. */
389	if (count & 0x01)
390	count++;
391
392	/* This shouldn't happen. If it does, it's the last thing you'll see */
393	if (ei_status.dmaing) {
394	printk(KERN_ERR "%s: DMAing conflict in ne_block_output."
395	"[DMAstat:%d][irqlock:%d]\n", dev->name, ei_status.dmaing,
396	ei_status.irqlock);
397	return;
398	}
399	ei_status.dmaing \|= 0x01;
400	/* We should already be in page 0, but to be safe... */
401	z_writeb(E8390_PAGE0+E8390_START+E8390_NODMA, nic_base + NE_CMD);
402
403	z_writeb(ENISR_RDC, nic_base + NE_EN0_ISR);
404
405	/* Now the normal output. */
406	z_writeb(count & 0xff, nic_base + NE_EN0_RCNTLO);
407	z_writeb(count >> 8, nic_base + NE_EN0_RCNTHI);
408	z_writeb(0x00, nic_base + NE_EN0_RSARLO);
409	z_writeb(start_page, nic_base + NE_EN0_RSARHI);
410
411	z_writeb(E8390_RWRITE+E8390_START, nic_base + NE_CMD);
412	ptrs = (short*)buf;
413	for (cnt = 0; cnt < count>>1; cnt++)
414	z_writew(*ptrs++, NE_BASE+NE_DATAPORT);
415
416	dma_start = jiffies;
417
418	while ((z_readb(NE_BASE + NE_EN0_ISR) & ENISR_RDC) == 0)
ff5688ae	419	if (time_after(jiffies, dma_start + 2HZ/100)) { / 20ms */
1da177e4 LT	420	printk(KERN_ERR "%s: timeout waiting for Tx RDC.\n",
	421	dev->name);
	422	zorro8390_reset_8390(dev);
8c6270f9	423	__NS8390_init(dev,1);
1da177e4 LT	424	break;
	425	}
	426
	427	z_writeb(ENISR_RDC, nic_base + NE_EN0_ISR); /* Ack intr. */
	428	ei_status.dmaing &= ~0x01;
	429	return;
	430	}
	431
	432	static void __devexit zorro8390_remove_one(struct zorro_dev *z)
	433	{
	434	struct net_device *dev = zorro_get_drvdata(z);
	435
	436	unregister_netdev(dev);
	437	free_irq(IRQ_AMIGA_PORTS, dev);
	438	release_mem_region(ZTWO_PADDR(dev->base_addr), NE_IO_EXTENT*2);
	439	free_netdev(dev);
	440	}
	441
	442	static int __init zorro8390_init_module(void)
	443	{
33d8675e	444	return zorro_register_driver(&zorro8390_driver);
1da177e4 LT	445	}
	446
	447	static void __exit zorro8390_cleanup_module(void)
	448	{
	449	zorro_unregister_driver(&zorro8390_driver);
	450	}
	451
	452	module_init(zorro8390_init_module);
	453	module_exit(zorro8390_cleanup_module);
	454
	455	MODULE_LICENSE("GPL");