[linux-2.6-block.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 }
};
MODULE_DEVICE_TABLE(zorro, zorro8390_zorro_tbl);

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;
    if (i < 0)
        return -ENODEV;

    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_set_mac_address 	= eth_mac_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	};
bf54a2b3	105	MODULE_DEVICE_TABLE(zorro, zorro8390_zorro_tbl);
1da177e4 LT	106
	107	static struct zorro_driver zorro8390_driver = {
	108	.name = "zorro8390",
	109	.id_table = zorro8390_zorro_tbl,
	110	.probe = zorro8390_init_one,
	111	.remove = __devexit_p(zorro8390_remove_one),
	112	};
	113
	114	static int __devinit zorro8390_init_one(struct zorro_dev *z,
	115	const struct zorro_device_id *ent)
	116	{
	117	struct net_device *dev;
	118	unsigned long board, ioaddr;
	119	int err, i;
	120
	121	for (i = ARRAY_SIZE(cards)-1; i >= 0; i--)
	122	if (z->id == cards[i].id)
	123	break;
be12159b	124	if (i < 0)
	125	return -ENODEV;
	126
1da177e4 LT	127	board = z->resource.start;
1da177e4 LT	128	ioaddr = board+cards[i].offset;
b6114794	129	dev = alloc_ei_netdev();
1da177e4 LT	130	if (!dev)
1da177e4 LT	131	return -ENOMEM;
1da177e4 LT	132	if (!request_mem_region(ioaddr, NE_IO_EXTENT*2, DRV_NAME)) {
	133	free_netdev(dev);
	134	return -EBUSY;
	135	}
	136	if ((err = zorro8390_init(dev, board, cards[i].name,
	137	ZTWO_VADDR(ioaddr)))) {
	138	release_mem_region(ioaddr, NE_IO_EXTENT*2);
	139	free_netdev(dev);
	140	return err;
	141	}
	142	zorro_set_drvdata(z, dev);
	143	return 0;
	144	}
	145
b6114794 SH	146	static const struct net_device_ops zorro8390_netdev_ops = {
	147	.ndo_open = zorro8390_open,
	148	.ndo_stop = zorro8390_close,
	149	.ndo_start_xmit = ei_start_xmit,
	150	.ndo_tx_timeout = ei_tx_timeout,
	151	.ndo_get_stats = ei_get_stats,
	152	.ndo_set_multicast_list = ei_set_multicast_list,
	153	.ndo_validate_addr = eth_validate_addr,
fe96aaa1	154	.ndo_set_mac_address = eth_mac_addr,
b6114794 SH	155	.ndo_change_mtu = eth_change_mtu,
	156	#ifdef CONFIG_NET_POLL_CONTROLLER
	157	.ndo_poll_controller = ei_poll,
	158	#endif
	159	};
	160
1da177e4 LT	161	static int __devinit zorro8390_init(struct net_device *dev,
	162	unsigned long board, const char *name,
	163	unsigned long ioaddr)
	164	{
	165	int i;
	166	int err;
	167	unsigned char SA_prom[32];
	168	int start_page, stop_page;
	169	static u32 zorro8390_offsets[16] = {
	170	0x00, 0x02, 0x04, 0x06, 0x08, 0x0a, 0x0c, 0x0e,
	171	0x10, 0x12, 0x14, 0x16, 0x18, 0x1a, 0x1c, 0x1e,
	172	};
	173
	174	/* Reset card. Who knows what dain-bramaged state it was left in. */
	175	{
	176	unsigned long reset_start_time = jiffies;
	177
	178	z_writeb(z_readb(ioaddr + NE_RESET), ioaddr + NE_RESET);
	179
	180	while ((z_readb(ioaddr + NE_EN0_ISR) & ENISR_RESET) == 0)
ff5688ae	181	if (time_after(jiffies, reset_start_time + 2*HZ/100)) {
1da177e4 LT	182	printk(KERN_WARNING " not found (no reset ack).\n");
	183	return -ENODEV;
	184	}
	185
	186	z_writeb(0xff, ioaddr + NE_EN0_ISR); /* Ack all intr. */
	187	}
	188
	189	/* Read the 16 bytes of station address PROM.
	190	We must first initialize registers, similar to NS8390_init(eifdev, 0).
	191	We can't reliably read the SAPROM address without this.
	192	(I learned the hard way!). */
	193	{
	194	struct {
	195	u32 value;
	196	u32 offset;
	197	} program_seq[] = {
	198	{E8390_NODMA+E8390_PAGE0+E8390_STOP, NE_CMD}, /* Select page 0*/
	199	{0x48, NE_EN0_DCFG}, /* Set byte-wide (0x48) access. */
	200	{0x00, NE_EN0_RCNTLO}, /* Clear the count regs. */
	201	{0x00, NE_EN0_RCNTHI},
	202	{0x00, NE_EN0_IMR}, /* Mask completion irq. */
	203	{0xFF, NE_EN0_ISR},
	204	{E8390_RXOFF, NE_EN0_RXCR}, /* 0x20 Set to monitor */
	205	{E8390_TXOFF, NE_EN0_TXCR}, /* 0x02 and loopback mode. */
	206	{32, NE_EN0_RCNTLO},
	207	{0x00, NE_EN0_RCNTHI},
	208	{0x00, NE_EN0_RSARLO}, /* DMA starting at 0x0000. */
	209	{0x00, NE_EN0_RSARHI},
	210	{E8390_RREAD+E8390_START, NE_CMD},
	211	};
ff8ac609	212	for (i = 0; i < ARRAY_SIZE(program_seq); i++) {
1da177e4 LT	213	z_writeb(program_seq[i].value, ioaddr + program_seq[i].offset);
	214	}
	215	}
	216	for (i = 0; i < 16; i++) {
	217	SA_prom[i] = z_readb(ioaddr + NE_DATAPORT);
	218	(void)z_readb(ioaddr + NE_DATAPORT);
	219	}
	220
	221	/* We must set the 8390 for word mode. */
	222	z_writeb(0x49, ioaddr + NE_EN0_DCFG);
	223	start_page = NESM_START_PG;
	224	stop_page = NESM_STOP_PG;
	225
	226	dev->base_addr = ioaddr;
	227	dev->irq = IRQ_AMIGA_PORTS;
	228
	229	/* Install the Interrupt handler */
8c6270f9	230	i = request_irq(IRQ_AMIGA_PORTS, __ei_interrupt, IRQF_SHARED, DRV_NAME, dev);
1da177e4 LT	231	if (i) return i;
1da177e4 LT	232
0795af57 JP	233	for(i = 0; i < ETHER_ADDR_LEN; i++)
	234	dev->dev_addr[i] = SA_prom[i];
	235
1da177e4	236	#ifdef DEBUG
e174961c	237	printk("%pM", dev->dev_addr);
1da177e4	238	#endif
1da177e4 LT	239
	240	ei_status.name = name;
	241	ei_status.tx_start_page = start_page;
	242	ei_status.stop_page = stop_page;
	243	ei_status.word16 = 1;
	244
	245	ei_status.rx_start_page = start_page + TX_PAGES;
	246
	247	ei_status.reset_8390 = &zorro8390_reset_8390;
	248	ei_status.block_input = &zorro8390_block_input;
	249	ei_status.block_output = &zorro8390_block_output;
	250	ei_status.get_8390_hdr = &zorro8390_get_8390_hdr;
	251	ei_status.reg_offset = zorro8390_offsets;
1da177e4	252
b6114794	253	dev->netdev_ops = &zorro8390_netdev_ops;
8c6270f9	254	__NS8390_init(dev, 0);
1da177e4 LT	255	err = register_netdev(dev);
	256	if (err) {
	257	free_irq(IRQ_AMIGA_PORTS, dev);
	258	return err;
	259	}
	260
e174961c JB	261	printk(KERN_INFO "%s: %s at 0x%08lx, Ethernet Address %pM\n",
e174961c JB	262	dev->name, name, board, dev->dev_addr);
1da177e4 LT	263
	264	return 0;
	265	}
	266
	267	static int zorro8390_open(struct net_device *dev)
	268	{
8c6270f9	269	__ei_open(dev);
1da177e4 LT	270	return 0;
	271	}
	272
	273	static int zorro8390_close(struct net_device *dev)
	274	{
	275	if (ei_debug > 1)
	276	printk(KERN_DEBUG "%s: Shutting down ethercard.\n", dev->name);
8c6270f9	277	__ei_close(dev);
1da177e4 LT	278	return 0;
	279	}
	280
	281	/* Hard reset the card. This used to pause for the same period that a
	282	8390 reset command required, but that shouldn't be necessary. */
	283	static void zorro8390_reset_8390(struct net_device *dev)
	284	{
	285	unsigned long reset_start_time = jiffies;
	286
	287	if (ei_debug > 1)
	288	printk(KERN_DEBUG "resetting the 8390 t=%ld...\n", jiffies);
	289
	290	z_writeb(z_readb(NE_BASE + NE_RESET), NE_BASE + NE_RESET);
	291
	292	ei_status.txing = 0;
	293	ei_status.dmaing = 0;
	294
	295	/* This check _should_not_ be necessary, omit eventually. */
	296	while ((z_readb(NE_BASE+NE_EN0_ISR) & ENISR_RESET) == 0)
ff5688ae	297	if (time_after(jiffies, reset_start_time + 2*HZ/100)) {
1da177e4 LT	298	printk(KERN_WARNING "%s: ne_reset_8390() did not complete.\n",
	299	dev->name);
	300	break;
	301	}
	302	z_writeb(ENISR_RESET, NE_BASE + NE_EN0_ISR); /* Ack intr. */
	303	}
	304
	305	/* Grab the 8390 specific header. Similar to the block_input routine, but
	306	we don't need to be concerned with ring wrap as the header will be at
	307	the start of a page, so we optimize accordingly. */
	308
	309	static void zorro8390_get_8390_hdr(struct net_device *dev,
	310	struct e8390_pkt_hdr *hdr, int ring_page)
	311	{
	312	int nic_base = dev->base_addr;
	313	int cnt;
	314	short *ptrs;
	315
	316	/* This shouldn't happen. If it does, it's the last thing you'll see */
	317	if (ei_status.dmaing) {
	318	printk(KERN_ERR "%s: DMAing conflict in ne_get_8390_hdr "
	319	"[DMAstat:%d][irqlock:%d].\n", dev->name, ei_status.dmaing,
	320	ei_status.irqlock);
	321	return;
	322	}
	323
	324	ei_status.dmaing \|= 0x01;
	325	z_writeb(E8390_NODMA+E8390_PAGE0+E8390_START, nic_base+ NE_CMD);
	326	z_writeb(ENISR_RDC, nic_base + NE_EN0_ISR);
	327	z_writeb(sizeof(struct e8390_pkt_hdr), nic_base + NE_EN0_RCNTLO);
	328	z_writeb(0, nic_base + NE_EN0_RCNTHI);
	329	z_writeb(0, nic_base + NE_EN0_RSARLO); /* On page boundary */
	330	z_writeb(ring_page, nic_base + NE_EN0_RSARHI);
	331	z_writeb(E8390_RREAD+E8390_START, nic_base + NE_CMD);
	332
	333	ptrs = (short*)hdr;
	334	for (cnt = 0; cnt < (sizeof(struct e8390_pkt_hdr)>>1); cnt++)
	335	*ptrs++ = z_readw(NE_BASE + NE_DATAPORT);
	336
	337	z_writeb(ENISR_RDC, nic_base + NE_EN0_ISR); /* Ack intr. */
	338
	339	hdr->count = WORDSWAP(hdr->count);
	340
	341	ei_status.dmaing &= ~0x01;
	342	}
	343
	344	/* Block input and output, similar to the Crynwr packet driver. If you
	345	are porting to a new ethercard, look at the packet driver source for hints.
	346	The NEx000 doesn't share the on-board packet memory -- you have to put
	347	the packet out through the "remote DMA" dataport using z_writeb. */
	348
	349	static void zorro8390_block_input(struct net_device *dev, int count,
	350	struct sk_buff *skb, int ring_offset)
	351	{
	352	int nic_base = dev->base_addr;
	353	char *buf = skb->data;
	354	short *ptrs;
	355	int cnt;
	356
	357	/* This shouldn't happen. If it does, it's the last thing you'll see */
	358	if (ei_status.dmaing) {
	359	printk(KERN_ERR "%s: DMAing conflict in ne_block_input "
	360	"[DMAstat:%d][irqlock:%d].\n",
	361	dev->name, ei_status.dmaing, ei_status.irqlock);
362	return;
363	}
364	ei_status.dmaing \|= 0x01;
365	z_writeb(E8390_NODMA+E8390_PAGE0+E8390_START, nic_base+ NE_CMD);
366	z_writeb(ENISR_RDC, nic_base + NE_EN0_ISR);
367	z_writeb(count & 0xff, nic_base + NE_EN0_RCNTLO);
368	z_writeb(count >> 8, nic_base + NE_EN0_RCNTHI);
369	z_writeb(ring_offset & 0xff, nic_base + NE_EN0_RSARLO);
370	z_writeb(ring_offset >> 8, nic_base + NE_EN0_RSARHI);
371	z_writeb(E8390_RREAD+E8390_START, nic_base + NE_CMD);
372	ptrs = (short*)buf;
373	for (cnt = 0; cnt < (count>>1); cnt++)
374	*ptrs++ = z_readw(NE_BASE + NE_DATAPORT);
375	if (count & 0x01)
376	buf[count-1] = z_readb(NE_BASE + NE_DATAPORT);
377
378	z_writeb(ENISR_RDC, nic_base + NE_EN0_ISR); /* Ack intr. */
379	ei_status.dmaing &= ~0x01;
380	}
381
382	static void zorro8390_block_output(struct net_device *dev, int count,
383	const unsigned char *buf,
384	const int start_page)
385	{
386	int nic_base = NE_BASE;
387	unsigned long dma_start;
388	short *ptrs;
389	int cnt;
390
391	/* Round the count up for word writes. Do we need to do this?
392	What effect will an odd byte count have on the 8390?
393	I should check someday. */
394	if (count & 0x01)
395	count++;
396
397	/* This shouldn't happen. If it does, it's the last thing you'll see */
398	if (ei_status.dmaing) {
399	printk(KERN_ERR "%s: DMAing conflict in ne_block_output."
400	"[DMAstat:%d][irqlock:%d]\n", dev->name, ei_status.dmaing,
401	ei_status.irqlock);
402	return;
403	}
404	ei_status.dmaing \|= 0x01;
405	/* We should already be in page 0, but to be safe... */
406	z_writeb(E8390_PAGE0+E8390_START+E8390_NODMA, nic_base + NE_CMD);
407
408	z_writeb(ENISR_RDC, nic_base + NE_EN0_ISR);
409
410	/* Now the normal output. */
411	z_writeb(count & 0xff, nic_base + NE_EN0_RCNTLO);
412	z_writeb(count >> 8, nic_base + NE_EN0_RCNTHI);
413	z_writeb(0x00, nic_base + NE_EN0_RSARLO);
414	z_writeb(start_page, nic_base + NE_EN0_RSARHI);
415
416	z_writeb(E8390_RWRITE+E8390_START, nic_base + NE_CMD);
417	ptrs = (short*)buf;
418	for (cnt = 0; cnt < count>>1; cnt++)
419	z_writew(*ptrs++, NE_BASE+NE_DATAPORT);
420
421	dma_start = jiffies;
422
423	while ((z_readb(NE_BASE + NE_EN0_ISR) & ENISR_RDC) == 0)
ff5688ae	424	if (time_after(jiffies, dma_start + 2HZ/100)) { / 20ms */
1da177e4 LT	425	printk(KERN_ERR "%s: timeout waiting for Tx RDC.\n",
	426	dev->name);
	427	zorro8390_reset_8390(dev);
8c6270f9	428	__NS8390_init(dev,1);
1da177e4 LT	429	break;
	430	}
	431
	432	z_writeb(ENISR_RDC, nic_base + NE_EN0_ISR); /* Ack intr. */
	433	ei_status.dmaing &= ~0x01;
	434	return;
	435	}
	436
	437	static void __devexit zorro8390_remove_one(struct zorro_dev *z)
	438	{
	439	struct net_device *dev = zorro_get_drvdata(z);
	440
	441	unregister_netdev(dev);
	442	free_irq(IRQ_AMIGA_PORTS, dev);
	443	release_mem_region(ZTWO_PADDR(dev->base_addr), NE_IO_EXTENT*2);
	444	free_netdev(dev);
	445	}
	446
	447	static int __init zorro8390_init_module(void)
	448	{
33d8675e	449	return zorro_register_driver(&zorro8390_driver);
1da177e4 LT	450	}
	451
	452	static void __exit zorro8390_cleanup_module(void)
	453	{
	454	zorro_unregister_driver(&zorro8390_driver);
	455	}
	456
	457	module_init(zorro8390_init_module);
	458	module_exit(zorro8390_cleanup_module);
	459
	460	MODULE_LICENSE("GPL");