[GitHub/mt8127/android_kernel_alcatel_ttab.git] / drivers / net / arcnet / com20020.c

/*
 * Linux ARCnet driver - COM20020 chipset support
 * 
 * Written 1997 by David Woodhouse.
 * Written 1994-1999 by Avery Pennarun.
 * Written 1999 by Martin Mares <mj@ucw.cz>.
 * Derived from skeleton.c by Donald Becker.
 *
 * Special thanks to Contemporary Controls, Inc. (www.ccontrols.com)
 *  for sponsoring the further development of this driver.
 *
 * **********************
 *
 * The original copyright of skeleton.c was as follows:
 *
 * skeleton.c Written 1993 by Donald Becker.
 * Copyright 1993 United States Government as represented by the
 * Director, National Security Agency.  This software may only be used
 * and distributed according to the terms of the GNU General Public License as
 * modified by SRC, incorporated herein by reference.
 *
 * **********************
 *
 * For more details, see drivers/net/arcnet.c
 *
 * **********************
 */
#include <linux/module.h>
#include <linux/kernel.h>
#include <linux/types.h>
#include <linux/ioport.h>
#include <linux/errno.h>
#include <linux/delay.h>
#include <linux/netdevice.h>
#include <linux/init.h>
#include <linux/arcdevice.h>
#include <linux/com20020.h>

#include <asm/io.h>

#define VERSION "arcnet: COM20020 chipset support (by David Woodhouse et al.)\n"

static char *clockrates[] =
{"10 Mb/s", "Reserved", "5 Mb/s",
 "2.5 Mb/s", "1.25Mb/s", "625 Kb/s", "312.5 Kb/s",
 "156.25 Kb/s", "Reserved", "Reserved", "Reserved"};

static void com20020_command(struct net_device *dev, int command);
static int com20020_status(struct net_device *dev);
static void com20020_setmask(struct net_device *dev, int mask);
static int com20020_reset(struct net_device *dev, int really_reset);
static void com20020_copy_to_card(struct net_device *dev, int bufnum,
				  int offset, void *buf, int count);
static void com20020_copy_from_card(struct net_device *dev, int bufnum,
				    int offset, void *buf, int count);
static void com20020_set_mc_list(struct net_device *dev);
static void com20020_close(struct net_device *);

static void com20020_copy_from_card(struct net_device *dev, int bufnum,
				    int offset, void *buf, int count)
{
	int ioaddr = dev->base_addr, ofs = 512 * bufnum + offset;

	/* set up the address register */
	outb((ofs >> 8) | RDDATAflag | AUTOINCflag, _ADDR_HI);
	outb(ofs & 0xff, _ADDR_LO);

	/* copy the data */
	TIME("insb", count, insb(_MEMDATA, buf, count));
}


static void com20020_copy_to_card(struct net_device *dev, int bufnum,
				  int offset, void *buf, int count)
{
	int ioaddr = dev->base_addr, ofs = 512 * bufnum + offset;

	/* set up the address register */
	outb((ofs >> 8) | AUTOINCflag, _ADDR_HI);
	outb(ofs & 0xff, _ADDR_LO);

	/* copy the data */
	TIME("outsb", count, outsb(_MEMDATA, buf, count));
}


/* Reset the card and check some basic stuff during the detection stage. */
int com20020_check(struct net_device *dev)
{
	int ioaddr = dev->base_addr, status;
	struct arcnet_local *lp = netdev_priv(dev);

	ARCRESET0;
	mdelay(RESETtime);

	lp->setup = lp->clockm ? 0 : (lp->clockp << 1);
	lp->setup2 = (lp->clockm << 4) | 8;

	/* CHECK: should we do this for SOHARD cards ? */
	/* Enable P1Mode for backplane mode */
	lp->setup = lp->setup | P1MODE;

	SET_SUBADR(SUB_SETUP1);
	outb(lp->setup, _XREG);

	if (lp->clockm != 0)
	{
		SET_SUBADR(SUB_SETUP2);
		outb(lp->setup2, _XREG);
	
		/* must now write the magic "restart operation" command */
		mdelay(1);
		outb(0x18, _COMMAND);
	}

	lp->config = 0x21 | (lp->timeout << 3) | (lp->backplane << 2);
	/* set node ID to 0x42 (but transmitter is disabled, so it's okay) */
	SETCONF;
	outb(0x42, ioaddr + BUS_ALIGN*7);

	status = ASTATUS();

	if ((status & 0x99) != (NORXflag | TXFREEflag | RESETflag)) {
		BUGMSG(D_NORMAL, "status invalid (%Xh).\n", status);
		return -ENODEV;
	}
	BUGMSG(D_INIT_REASONS, "status after reset: %X\n", status);

	/* Enable TX */
	outb(0x39, _CONFIG);
	outb(inb(ioaddr + BUS_ALIGN*8), ioaddr + BUS_ALIGN*7);

	ACOMMAND(CFLAGScmd | RESETclear | CONFIGclear);

	status = ASTATUS();
	BUGMSG(D_INIT_REASONS, "status after reset acknowledged: %X\n",
	       status);

	/* Read first location of memory */
	outb(0 | RDDATAflag | AUTOINCflag, _ADDR_HI);
	outb(0, _ADDR_LO);

	if ((status = inb(_MEMDATA)) != TESTvalue) {
		BUGMSG(D_NORMAL, "Signature byte not found (%02Xh != D1h).\n",
		       status);
		return -ENODEV;
	}
	return 0;
}

const struct net_device_ops com20020_netdev_ops = {
	.ndo_open	= arcnet_open,
	.ndo_stop	= arcnet_close,
	.ndo_start_xmit = arcnet_send_packet,
	.ndo_tx_timeout = arcnet_timeout,
	.ndo_set_multicast_list = com20020_set_mc_list,
};

/* Set up the struct net_device associated with this card.  Called after
 * probing succeeds.
 */
int com20020_found(struct net_device *dev, int shared)
{
	struct arcnet_local *lp;
	int ioaddr = dev->base_addr;

	/* Initialize the rest of the device structure. */

	lp = netdev_priv(dev);

	lp->hw.owner = THIS_MODULE;
	lp->hw.command = com20020_command;
	lp->hw.status = com20020_status;
	lp->hw.intmask = com20020_setmask;
	lp->hw.reset = com20020_reset;
	lp->hw.copy_to_card = com20020_copy_to_card;
	lp->hw.copy_from_card = com20020_copy_from_card;
	lp->hw.close = com20020_close;

	if (!dev->dev_addr[0])
		dev->dev_addr[0] = inb(ioaddr + BUS_ALIGN*8);	/* FIXME: do this some other way! */

	SET_SUBADR(SUB_SETUP1);
	outb(lp->setup, _XREG);

	if (lp->card_flags & ARC_CAN_10MBIT)
	{
		SET_SUBADR(SUB_SETUP2);
		outb(lp->setup2, _XREG);
	
		/* must now write the magic "restart operation" command */
		mdelay(1);
		outb(0x18, _COMMAND);
	}

	lp->config = 0x20 | (lp->timeout << 3) | (lp->backplane << 2) | 1;
	/* Default 0x38 + register: Node ID */
	SETCONF;
	outb(dev->dev_addr[0], _XREG);

	/* reserve the irq */
	if (request_irq(dev->irq, arcnet_interrupt, shared,
			"arcnet (COM20020)", dev)) {
		BUGMSG(D_NORMAL, "Can't get IRQ %d!\n", dev->irq);
		return -ENODEV;
	}

	dev->base_addr = ioaddr;

	BUGMSG(D_NORMAL, "%s: station %02Xh found at %03lXh, IRQ %d.\n",
	       lp->card_name, dev->dev_addr[0], dev->base_addr, dev->irq);

	if (lp->backplane)
		BUGMSG(D_NORMAL, "Using backplane mode.\n");

	if (lp->timeout != 3)
		BUGMSG(D_NORMAL, "Using extended timeout value of %d.\n", lp->timeout);

	BUGMSG(D_NORMAL, "Using CKP %d - data rate %s.\n",
	       lp->setup >> 1, 
	       clockrates[3 - ((lp->setup2 & 0xF0) >> 4) + ((lp->setup & 0x0F) >> 1)]);

	if (register_netdev(dev)) {
		free_irq(dev->irq, dev);
		return -EIO;
	}
	return 0;
}


/* 
 * Do a hardware reset on the card, and set up necessary registers.
 * 
 * This should be called as little as possible, because it disrupts the
 * token on the network (causes a RECON) and requires a significant delay.
 *
 * However, it does make sure the card is in a defined state.
 */
static int com20020_reset(struct net_device *dev, int really_reset)
{
	struct arcnet_local *lp = netdev_priv(dev);
	u_int ioaddr = dev->base_addr;
	u_char inbyte;

	BUGMSG(D_DEBUG, "%s: %d: %s: dev: %p, lp: %p, dev->name: %s\n",
		__FILE__,__LINE__,__func__,dev,lp,dev->name);
	BUGMSG(D_INIT, "Resetting %s (status=%02Xh)\n",
	       dev->name, ASTATUS());

	BUGMSG(D_DEBUG, "%s: %d: %s\n",__FILE__,__LINE__,__func__);
	lp->config = TXENcfg | (lp->timeout << 3) | (lp->backplane << 2);
	/* power-up defaults */
	SETCONF;
	BUGMSG(D_DEBUG, "%s: %d: %s\n",__FILE__,__LINE__,__func__);

	if (really_reset) {
		/* reset the card */
		ARCRESET;
		mdelay(RESETtime * 2);	/* COM20020 seems to be slower sometimes */
	}
	/* clear flags & end reset */
	BUGMSG(D_DEBUG, "%s: %d: %s\n",__FILE__,__LINE__,__func__);
	ACOMMAND(CFLAGScmd | RESETclear | CONFIGclear);

	/* verify that the ARCnet signature byte is present */
	BUGMSG(D_DEBUG, "%s: %d: %s\n",__FILE__,__LINE__,__func__);

	com20020_copy_from_card(dev, 0, 0, &inbyte, 1);
	BUGMSG(D_DEBUG, "%s: %d: %s\n",__FILE__,__LINE__,__func__);
	if (inbyte != TESTvalue) {
		BUGMSG(D_DEBUG, "%s: %d: %s\n",__FILE__,__LINE__,__func__);
		BUGMSG(D_NORMAL, "reset failed: TESTvalue not present.\n");
		return 1;
	}
	/* enable extended (512-byte) packets */
	ACOMMAND(CONFIGcmd | EXTconf);
	BUGMSG(D_DEBUG, "%s: %d: %s\n",__FILE__,__LINE__,__func__);

	/* done!  return success. */
	return 0;
}


static void com20020_setmask(struct net_device *dev, int mask)
{
	u_int ioaddr = dev->base_addr;
	BUGMSG(D_DURING, "Setting mask to %x at %x\n",mask,ioaddr);
	AINTMASK(mask);
}


static void com20020_command(struct net_device *dev, int cmd)
{
	u_int ioaddr = dev->base_addr;
	ACOMMAND(cmd);
}


static int com20020_status(struct net_device *dev)
{
	u_int ioaddr = dev->base_addr;

	return ASTATUS() + (ADIAGSTATUS()<<8);
}

static void com20020_close(struct net_device *dev)
{
	struct arcnet_local *lp = netdev_priv(dev);
	int ioaddr = dev->base_addr;

	/* disable transmitter */
	lp->config &= ~TXENcfg;
	SETCONF;
}

/* Set or clear the multicast filter for this adaptor.
 * num_addrs == -1    Promiscuous mode, receive all packets
 * num_addrs == 0       Normal mode, clear multicast list
 * num_addrs > 0        Multicast mode, receive normal and MC packets, and do
 *                      best-effort filtering.
 *      FIXME - do multicast stuff, not just promiscuous.
 */
static void com20020_set_mc_list(struct net_device *dev)
{
	struct arcnet_local *lp = netdev_priv(dev);
	int ioaddr = dev->base_addr;

	if ((dev->flags & IFF_PROMISC) && (dev->flags & IFF_UP)) {	/* Enable promiscuous mode */
		if (!(lp->setup & PROMISCset))
			BUGMSG(D_NORMAL, "Setting promiscuous flag...\n");
		SET_SUBADR(SUB_SETUP1);
		lp->setup |= PROMISCset;
		outb(lp->setup, _XREG);
	} else
		/* Disable promiscuous mode, use normal mode */
	{
		if ((lp->setup & PROMISCset))
			BUGMSG(D_NORMAL, "Resetting promiscuous flag...\n");
		SET_SUBADR(SUB_SETUP1);
		lp->setup &= ~PROMISCset;
		outb(lp->setup, _XREG);
	}
}

#if defined(CONFIG_ARCNET_COM20020_PCI_MODULE) || \
    defined(CONFIG_ARCNET_COM20020_ISA_MODULE) || \
    defined(CONFIG_ARCNET_COM20020_CS_MODULE)
EXPORT_SYMBOL(com20020_check);
EXPORT_SYMBOL(com20020_found);
EXPORT_SYMBOL(com20020_netdev_ops);
#endif

MODULE_LICENSE("GPL");

#ifdef MODULE

static int __init com20020_module_init(void)
{
	BUGLVL(D_NORMAL) printk(VERSION);
	return 0;
}

static void __exit com20020_module_exit(void)
{
}
module_init(com20020_module_init);
module_exit(com20020_module_exit);
#endif				/* MODULE */
Commit	Line	Data
1da177e4 LT	1	/*
	2	* Linux ARCnet driver - COM20020 chipset support
	3	*
	4	* Written 1997 by David Woodhouse.
	5	* Written 1994-1999 by Avery Pennarun.
	6	* Written 1999 by Martin Mares <mj@ucw.cz>.
	7	* Derived from skeleton.c by Donald Becker.
	8	*
	9	* Special thanks to Contemporary Controls, Inc. (www.ccontrols.com)
	10	* for sponsoring the further development of this driver.
	11	*
	12	* **********************
	13	*
	14	* The original copyright of skeleton.c was as follows:
	15	*
	16	* skeleton.c Written 1993 by Donald Becker.
	17	* Copyright 1993 United States Government as represented by the
	18	* Director, National Security Agency. This software may only be used
	19	* and distributed according to the terms of the GNU General Public License as
	20	* modified by SRC, incorporated herein by reference.
	21	*
	22	* **********************
	23	*
	24	* For more details, see drivers/net/arcnet.c
	25	*
	26	* **********************
	27	*/
	28	#include <linux/module.h>
	29	#include <linux/kernel.h>
	30	#include <linux/types.h>
	31	#include <linux/ioport.h>
1da177e4 LT	32	#include <linux/errno.h>
	33	#include <linux/delay.h>
	34	#include <linux/netdevice.h>
	35	#include <linux/init.h>
	36	#include <linux/arcdevice.h>
	37	#include <linux/com20020.h>
	38
	39	#include <asm/io.h>
	40
	41	#define VERSION "arcnet: COM20020 chipset support (by David Woodhouse et al.)\n"
	42
	43	static char *clockrates[] =
	44	{"10 Mb/s", "Reserved", "5 Mb/s",
	45	"2.5 Mb/s", "1.25Mb/s", "625 Kb/s", "312.5 Kb/s",
	46	"156.25 Kb/s", "Reserved", "Reserved", "Reserved"};
	47
	48	static void com20020_command(struct net_device *dev, int command);
	49	static int com20020_status(struct net_device *dev);
	50	static void com20020_setmask(struct net_device *dev, int mask);
	51	static int com20020_reset(struct net_device *dev, int really_reset);
	52	static void com20020_copy_to_card(struct net_device *dev, int bufnum,
	53	int offset, void *buf, int count);
	54	static void com20020_copy_from_card(struct net_device *dev, int bufnum,
	55	int offset, void *buf, int count);
	56	static void com20020_set_mc_list(struct net_device *dev);
	57	static void com20020_close(struct net_device *);
	58
	59	static void com20020_copy_from_card(struct net_device *dev, int bufnum,
	60	int offset, void *buf, int count)
	61	{
	62	int ioaddr = dev->base_addr, ofs = 512 * bufnum + offset;
	63
	64	/* set up the address register */
	65	outb((ofs >> 8) \| RDDATAflag \| AUTOINCflag, _ADDR_HI);
	66	outb(ofs & 0xff, _ADDR_LO);
	67
	68	/* copy the data */
	69	TIME("insb", count, insb(_MEMDATA, buf, count));
	70	}
	71
	72
	73	static void com20020_copy_to_card(struct net_device *dev, int bufnum,
	74	int offset, void *buf, int count)
	75	{
	76	int ioaddr = dev->base_addr, ofs = 512 * bufnum + offset;
	77
	78	/* set up the address register */
	79	outb((ofs >> 8) \| AUTOINCflag, _ADDR_HI);
	80	outb(ofs & 0xff, _ADDR_LO);
	81
	82	/* copy the data */
	83	TIME("outsb", count, outsb(_MEMDATA, buf, count));
	84	}
	85
	86
	87	/* Reset the card and check some basic stuff during the detection stage. */
	88	int com20020_check(struct net_device *dev)
	89	{
	90	int ioaddr = dev->base_addr, status;
454d7c9b	91	struct arcnet_local *lp = netdev_priv(dev);
1da177e4 LT	92
	93	ARCRESET0;
	94	mdelay(RESETtime);
	95
	96	lp->setup = lp->clockm ? 0 : (lp->clockp << 1);
	97	lp->setup2 = (lp->clockm << 4) \| 8;
	98
	99	/* CHECK: should we do this for SOHARD cards ? */
	100	/* Enable P1Mode for backplane mode */
	101	lp->setup = lp->setup \| P1MODE;
	102
	103	SET_SUBADR(SUB_SETUP1);
	104	outb(lp->setup, _XREG);
	105
52edc17f	106	if (lp->clockm != 0)
1da177e4 LT	107	{
	108	SET_SUBADR(SUB_SETUP2);
	109	outb(lp->setup2, _XREG);
	110
	111	/* must now write the magic "restart operation" command */
	112	mdelay(1);
	113	outb(0x18, _COMMAND);
	114	}
	115
	116	lp->config = 0x21 \| (lp->timeout << 3) \| (lp->backplane << 2);
	117	/* set node ID to 0x42 (but transmitter is disabled, so it's okay) */
	118	SETCONF;
	119	outb(0x42, ioaddr + BUS_ALIGN*7);
	120
	121	status = ASTATUS();
	122
	123	if ((status & 0x99) != (NORXflag \| TXFREEflag \| RESETflag)) {
	124	BUGMSG(D_NORMAL, "status invalid (%Xh).\n", status);
	125	return -ENODEV;
	126	}
	127	BUGMSG(D_INIT_REASONS, "status after reset: %X\n", status);
	128
	129	/* Enable TX */
	130	outb(0x39, _CONFIG);
	131	outb(inb(ioaddr + BUS_ALIGN8), ioaddr + BUS_ALIGN7);
	132
	133	ACOMMAND(CFLAGScmd \| RESETclear \| CONFIGclear);
	134
	135	status = ASTATUS();
	136	BUGMSG(D_INIT_REASONS, "status after reset acknowledged: %X\n",
	137	status);
	138
	139	/* Read first location of memory */
	140	outb(0 \| RDDATAflag \| AUTOINCflag, _ADDR_HI);
	141	outb(0, _ADDR_LO);
	142
	143	if ((status = inb(_MEMDATA)) != TESTvalue) {
	144	BUGMSG(D_NORMAL, "Signature byte not found (%02Xh != D1h).\n",
	145	status);
	146	return -ENODEV;
	147	}
	148	return 0;
	149	}
	150
a1799af4 SH	151	const struct net_device_ops com20020_netdev_ops = {
	152	.ndo_open = arcnet_open,
	153	.ndo_stop = arcnet_close,
	154	.ndo_start_xmit = arcnet_send_packet,
	155	.ndo_tx_timeout = arcnet_timeout,
	156	.ndo_set_multicast_list = com20020_set_mc_list,
	157	};
	158
1da177e4 LT	159	/* Set up the struct net_device associated with this card. Called after
	160	* probing succeeds.
	161	*/
	162	int com20020_found(struct net_device *dev, int shared)
	163	{
	164	struct arcnet_local *lp;
	165	int ioaddr = dev->base_addr;
	166
	167	/* Initialize the rest of the device structure. */
	168
454d7c9b	169	lp = netdev_priv(dev);
1da177e4 LT	170
	171	lp->hw.owner = THIS_MODULE;
	172	lp->hw.command = com20020_command;
	173	lp->hw.status = com20020_status;
	174	lp->hw.intmask = com20020_setmask;
	175	lp->hw.reset = com20020_reset;
	176	lp->hw.copy_to_card = com20020_copy_to_card;
	177	lp->hw.copy_from_card = com20020_copy_from_card;
	178	lp->hw.close = com20020_close;
	179
1da177e4 LT	180	if (!dev->dev_addr[0])
	181	dev->dev_addr[0] = inb(ioaddr + BUS_ALIGN8); / FIXME: do this some other way! */
	182
	183	SET_SUBADR(SUB_SETUP1);
	184	outb(lp->setup, _XREG);
	185
	186	if (lp->card_flags & ARC_CAN_10MBIT)
	187	{
	188	SET_SUBADR(SUB_SETUP2);
	189	outb(lp->setup2, _XREG);
	190
	191	/* must now write the magic "restart operation" command */
	192	mdelay(1);
	193	outb(0x18, _COMMAND);
	194	}
	195
	196	lp->config = 0x20 \| (lp->timeout << 3) \| (lp->backplane << 2) \| 1;
	197	/* Default 0x38 + register: Node ID */
	198	SETCONF;
	199	outb(dev->dev_addr[0], _XREG);
	200
	201	/* reserve the irq */
a0607fd3	202	if (request_irq(dev->irq, arcnet_interrupt, shared,
1da177e4 LT	203	"arcnet (COM20020)", dev)) {
	204	BUGMSG(D_NORMAL, "Can't get IRQ %d!\n", dev->irq);
	205	return -ENODEV;
	206	}
	207
	208	dev->base_addr = ioaddr;
	209
	210	BUGMSG(D_NORMAL, "%s: station %02Xh found at %03lXh, IRQ %d.\n",
	211	lp->card_name, dev->dev_addr[0], dev->base_addr, dev->irq);
	212
	213	if (lp->backplane)
	214	BUGMSG(D_NORMAL, "Using backplane mode.\n");
	215
	216	if (lp->timeout != 3)
	217	BUGMSG(D_NORMAL, "Using extended timeout value of %d.\n", lp->timeout);
	218
	219	BUGMSG(D_NORMAL, "Using CKP %d - data rate %s.\n",
	220	lp->setup >> 1,
	221	clockrates[3 - ((lp->setup2 & 0xF0) >> 4) + ((lp->setup & 0x0F) >> 1)]);
	222
	223	if (register_netdev(dev)) {
	224	free_irq(dev->irq, dev);
	225	return -EIO;
	226	}
	227	return 0;
	228	}
	229
	230
	231	/*
	232	* Do a hardware reset on the card, and set up necessary registers.
	233	*
	234	* This should be called as little as possible, because it disrupts the
	235	* token on the network (causes a RECON) and requires a significant delay.
	236	*
	237	* However, it does make sure the card is in a defined state.
	238	*/
	239	static int com20020_reset(struct net_device *dev, int really_reset)
	240	{
454d7c9b	241	struct arcnet_local *lp = netdev_priv(dev);
1da177e4 LT	242	u_int ioaddr = dev->base_addr;
	243	u_char inbyte;
	244
	245	BUGMSG(D_DEBUG, "%s: %d: %s: dev: %p, lp: %p, dev->name: %s\n",
b39d66a8	246	__FILE__,__LINE__,__func__,dev,lp,dev->name);
1da177e4 LT	247	BUGMSG(D_INIT, "Resetting %s (status=%02Xh)\n",
	248	dev->name, ASTATUS());
	249
b39d66a8	250	BUGMSG(D_DEBUG, "%s: %d: %s\n",__FILE__,__LINE__,__func__);
1da177e4 LT	251	lp->config = TXENcfg \| (lp->timeout << 3) \| (lp->backplane << 2);
	252	/* power-up defaults */
	253	SETCONF;
b39d66a8	254	BUGMSG(D_DEBUG, "%s: %d: %s\n",__FILE__,__LINE__,__func__);
1da177e4 LT	255
	256	if (really_reset) {
	257	/* reset the card */
	258	ARCRESET;
	259	mdelay(RESETtime * 2); /* COM20020 seems to be slower sometimes */
	260	}
	261	/* clear flags & end reset */
b39d66a8	262	BUGMSG(D_DEBUG, "%s: %d: %s\n",__FILE__,__LINE__,__func__);
1da177e4 LT	263	ACOMMAND(CFLAGScmd \| RESETclear \| CONFIGclear);
	264
	265	/* verify that the ARCnet signature byte is present */
b39d66a8	266	BUGMSG(D_DEBUG, "%s: %d: %s\n",__FILE__,__LINE__,__func__);
1da177e4 LT	267
1da177e4 LT	268	com20020_copy_from_card(dev, 0, 0, &inbyte, 1);
b39d66a8	269	BUGMSG(D_DEBUG, "%s: %d: %s\n",__FILE__,__LINE__,__func__);
1da177e4	270	if (inbyte != TESTvalue) {
b39d66a8	271	BUGMSG(D_DEBUG, "%s: %d: %s\n",__FILE__,__LINE__,__func__);
1da177e4 LT	272	BUGMSG(D_NORMAL, "reset failed: TESTvalue not present.\n");
	273	return 1;
	274	}
	275	/* enable extended (512-byte) packets */
	276	ACOMMAND(CONFIGcmd \| EXTconf);
b39d66a8	277	BUGMSG(D_DEBUG, "%s: %d: %s\n",__FILE__,__LINE__,__func__);
1da177e4 LT	278
	279	/* done! return success. */
	280	return 0;
	281	}
	282
	283
	284	static void com20020_setmask(struct net_device *dev, int mask)
	285	{
	286	u_int ioaddr = dev->base_addr;
	287	BUGMSG(D_DURING, "Setting mask to %x at %x\n",mask,ioaddr);
	288	AINTMASK(mask);
	289	}
	290
	291
	292	static void com20020_command(struct net_device *dev, int cmd)
	293	{
	294	u_int ioaddr = dev->base_addr;
	295	ACOMMAND(cmd);
	296	}
	297
	298
	299	static int com20020_status(struct net_device *dev)
	300	{
	301	u_int ioaddr = dev->base_addr;
	302
	303	return ASTATUS() + (ADIAGSTATUS()<<8);
	304	}
	305
	306	static void com20020_close(struct net_device *dev)
	307	{
454d7c9b	308	struct arcnet_local *lp = netdev_priv(dev);
1da177e4 LT	309	int ioaddr = dev->base_addr;
	310
	311	/* disable transmitter */
	312	lp->config &= ~TXENcfg;
	313	SETCONF;
	314	}
	315
	316	/* Set or clear the multicast filter for this adaptor.
	317	* num_addrs == -1 Promiscuous mode, receive all packets
	318	* num_addrs == 0 Normal mode, clear multicast list
	319	* num_addrs > 0 Multicast mode, receive normal and MC packets, and do
	320	* best-effort filtering.
	321	* FIXME - do multicast stuff, not just promiscuous.
	322	*/
	323	static void com20020_set_mc_list(struct net_device *dev)
	324	{
454d7c9b	325	struct arcnet_local *lp = netdev_priv(dev);
1da177e4 LT	326	int ioaddr = dev->base_addr;
	327
	328	if ((dev->flags & IFF_PROMISC) && (dev->flags & IFF_UP)) { /* Enable promiscuous mode */
	329	if (!(lp->setup & PROMISCset))
	330	BUGMSG(D_NORMAL, "Setting promiscuous flag...\n");
	331	SET_SUBADR(SUB_SETUP1);
	332	lp->setup \|= PROMISCset;
	333	outb(lp->setup, _XREG);
	334	} else
	335	/* Disable promiscuous mode, use normal mode */
	336	{
	337	if ((lp->setup & PROMISCset))
	338	BUGMSG(D_NORMAL, "Resetting promiscuous flag...\n");
	339	SET_SUBADR(SUB_SETUP1);
	340	lp->setup &= ~PROMISCset;
	341	outb(lp->setup, _XREG);
	342	}
	343	}
	344
ace48ffb	345	#if defined(CONFIG_ARCNET_COM20020_PCI_MODULE) \|\| \
2a10387e RD	346	defined(CONFIG_ARCNET_COM20020_ISA_MODULE) \|\| \
2a10387e RD	347	defined(CONFIG_ARCNET_COM20020_CS_MODULE)
1da177e4 LT	348	EXPORT_SYMBOL(com20020_check);
1da177e4 LT	349	EXPORT_SYMBOL(com20020_found);
dd0a251c	350	EXPORT_SYMBOL(com20020_netdev_ops);
ace48ffb	351	#endif
1da177e4 LT	352
	353	MODULE_LICENSE("GPL");
	354
ace48ffb RD	355	#ifdef MODULE
ace48ffb RD	356
0ebd1c1d	357	static int __init com20020_module_init(void)
1da177e4 LT	358	{
	359	BUGLVL(D_NORMAL) printk(VERSION);
	360	return 0;
	361	}
	362
0ebd1c1d	363	static void __exit com20020_module_exit(void)
1da177e4 LT	364	{
1da177e4 LT	365	}
0ebd1c1d JS	366	module_init(com20020_module_init);
0ebd1c1d JS	367	module_exit(com20020_module_exit);
1da177e4	368	#endif /* MODULE */