[deliverable/linux.git] / drivers / net / tulip / timer.c

/*
	drivers/net/tulip/timer.c

	Maintained by Valerie Henson <val_henson@linux.intel.com>
	Copyright 2000,2001  The Linux Kernel Team
	Written/copyright 1994-2001 by Donald Becker.

	This software may be used and distributed according to the terms
	of the GNU General Public License, incorporated herein by reference.

	Please refer to Documentation/DocBook/tulip-user.{pdf,ps,html}
	for more information on this driver, or visit the project
	Web page at http://sourceforge.net/projects/tulip/

*/

#include <linux/pci.h>
#include "tulip.h"


void tulip_media_task(struct work_struct *work)
{
	struct tulip_private *tp =
		container_of(work, struct tulip_private, media_work);
	struct net_device *dev = tp->dev;
	void __iomem *ioaddr = tp->base_addr;
	u32 csr12 = ioread32(ioaddr + CSR12);
	int next_tick = 2*HZ;
	unsigned long flags;

	if (tulip_debug > 2) {
		printk(KERN_DEBUG "%s: Media selection tick, %s, status %8.8x mode"
			   " %8.8x SIA %8.8x %8.8x %8.8x %8.8x.\n",
			   dev->name, medianame[dev->if_port], ioread32(ioaddr + CSR5),
			   ioread32(ioaddr + CSR6), csr12, ioread32(ioaddr + CSR13),
			   ioread32(ioaddr + CSR14), ioread32(ioaddr + CSR15));
	}
	switch (tp->chip_id) {
	case DC21140:
	case DC21142:
	case MX98713:
	case COMPEX9881:
	case DM910X:
	default: {
		struct medialeaf *mleaf;
		unsigned char *p;
		if (tp->mtable == NULL) {	/* No EEPROM info, use generic code. */
			/* Not much that can be done.
			   Assume this a generic MII or SYM transceiver. */
			next_tick = 60*HZ;
			if (tulip_debug > 2)
				printk(KERN_DEBUG "%s: network media monitor CSR6 %8.8x "
					   "CSR12 0x%2.2x.\n",
					   dev->name, ioread32(ioaddr + CSR6), csr12 & 0xff);
			break;
		}
		mleaf = &tp->mtable->mleaf[tp->cur_index];
		p = mleaf->leafdata;
		switch (mleaf->type) {
		case 0: case 4: {
			/* Type 0 serial or 4 SYM transceiver.  Check the link beat bit. */
			int offset = mleaf->type == 4 ? 5 : 2;
			s8 bitnum = p[offset];
			if (p[offset+1] & 0x80) {
				if (tulip_debug > 1)
					printk(KERN_DEBUG"%s: Transceiver monitor tick "
						   "CSR12=%#2.2x, no media sense.\n",
						   dev->name, csr12);
				if (mleaf->type == 4) {
					if (mleaf->media == 3 && (csr12 & 0x02))
						goto select_next_media;
				}
				break;
			}
			if (tulip_debug > 2)
				printk(KERN_DEBUG "%s: Transceiver monitor tick: CSR12=%#2.2x"
					   " bit %d is %d, expecting %d.\n",
					   dev->name, csr12, (bitnum >> 1) & 7,
					   (csr12 & (1 << ((bitnum >> 1) & 7))) != 0,
					   (bitnum >= 0));
			/* Check that the specified bit has the proper value. */
			if ((bitnum < 0) !=
				((csr12 & (1 << ((bitnum >> 1) & 7))) != 0)) {
				if (tulip_debug > 2)
					printk(KERN_DEBUG "%s: Link beat detected for %s.\n", dev->name,
					       medianame[mleaf->media & MEDIA_MASK]);
				if ((p[2] & 0x61) == 0x01)	/* Bogus Znyx board. */
					goto actually_mii;
				netif_carrier_on(dev);
				break;
			}
			netif_carrier_off(dev);
			if (tp->medialock)
				break;
	  select_next_media:
			if (--tp->cur_index < 0) {
				/* We start again, but should instead look for default. */
				tp->cur_index = tp->mtable->leafcount - 1;
			}
			dev->if_port = tp->mtable->mleaf[tp->cur_index].media;
			if (tulip_media_cap[dev->if_port] & MediaIsFD)
				goto select_next_media; /* Skip FD entries. */
			if (tulip_debug > 1)
				printk(KERN_DEBUG "%s: No link beat on media %s,"
				       " trying transceiver type %s.\n",
				       dev->name, medianame[mleaf->media & MEDIA_MASK],
				       medianame[tp->mtable->mleaf[tp->cur_index].media]);
			tulip_select_media(dev, 0);
			/* Restart the transmit process. */
			tulip_restart_rxtx(tp);
			next_tick = (24*HZ)/10;
			break;
		}
		case 1:  case 3:		/* 21140, 21142 MII */
		actually_mii:
			if (tulip_check_duplex(dev) < 0) {
				netif_carrier_off(dev);
				next_tick = 3*HZ;
			} else {
				netif_carrier_on(dev);
				next_tick = 60*HZ;
			}
			break;
		case 2:					/* 21142 serial block has no link beat. */
		default:
			break;
		}
	}
	break;
	}


	spin_lock_irqsave(&tp->lock, flags);
	if (tp->timeout_recovery) {
		tulip_tx_timeout_complete(tp, ioaddr);
		tp->timeout_recovery = 0;
	}
	spin_unlock_irqrestore(&tp->lock, flags);

	/* mod_timer synchronizes us with potential add_timer calls
	 * from interrupts.
	 */
	mod_timer(&tp->timer, RUN_AT(next_tick));
}


void mxic_timer(unsigned long data)
{
	struct net_device *dev = (struct net_device *)data;
	struct tulip_private *tp = netdev_priv(dev);
	void __iomem *ioaddr = tp->base_addr;
	int next_tick = 60*HZ;

	if (tulip_debug > 3) {
		printk(KERN_INFO"%s: MXIC negotiation status %8.8x.\n", dev->name,
			   ioread32(ioaddr + CSR12));
	}
	if (next_tick) {
		mod_timer(&tp->timer, RUN_AT(next_tick));
	}
}


void comet_timer(unsigned long data)
{
	struct net_device *dev = (struct net_device *)data;
	struct tulip_private *tp = netdev_priv(dev);
	int next_tick = 60*HZ;

	if (tulip_debug > 1)
		printk(KERN_DEBUG "%s: Comet link status %4.4x partner capability "
			   "%4.4x.\n",
			   dev->name,
			   tulip_mdio_read(dev, tp->phys[0], 1),
			   tulip_mdio_read(dev, tp->phys[0], 5));
	/* mod_timer synchronizes us with potential add_timer calls
	 * from interrupts.
	 */
	if (tulip_check_duplex(dev) < 0)
		{ netif_carrier_off(dev); }
	else
		{ netif_carrier_on(dev); }
	mod_timer(&tp->timer, RUN_AT(next_tick));
}
Commit	Line	Data
1da177e4 LT	1	/*
	2	drivers/net/tulip/timer.c
	3
6b92801b	4	Maintained by Valerie Henson <val_henson@linux.intel.com>
1da177e4 LT	5	Copyright 2000,2001 The Linux Kernel Team
	6	Written/copyright 1994-2001 by Donald Becker.
	7
	8	This software may be used and distributed according to the terms
	9	of the GNU General Public License, incorporated herein by reference.
	10
	11	Please refer to Documentation/DocBook/tulip-user.{pdf,ps,html}
	12	for more information on this driver, or visit the project
	13	Web page at http://sourceforge.net/projects/tulip/
	14
	15	*/
	16
	17	#include <linux/pci.h>
	18	#include "tulip.h"
	19
	20
c4028958	21	void tulip_media_task(struct work_struct *work)
1da177e4	22	{
c4028958 DH	23	struct tulip_private *tp =
	24	container_of(work, struct tulip_private, media_work);
	25	struct net_device *dev = tp->dev;
1da177e4 LT	26	void __iomem *ioaddr = tp->base_addr;
	27	u32 csr12 = ioread32(ioaddr + CSR12);
	28	int next_tick = 2*HZ;
0bb3cf72	29	unsigned long flags;
1da177e4 LT	30
	31	if (tulip_debug > 2) {
	32	printk(KERN_DEBUG "%s: Media selection tick, %s, status %8.8x mode"
	33	" %8.8x SIA %8.8x %8.8x %8.8x %8.8x.\n",
	34	dev->name, medianame[dev->if_port], ioread32(ioaddr + CSR5),
	35	ioread32(ioaddr + CSR6), csr12, ioread32(ioaddr + CSR13),
	36	ioread32(ioaddr + CSR14), ioread32(ioaddr + CSR15));
	37	}
	38	switch (tp->chip_id) {
	39	case DC21140:
	40	case DC21142:
	41	case MX98713:
	42	case COMPEX9881:
	43	case DM910X:
1da177e4 LT	44	default: {
	45	struct medialeaf *mleaf;
	46	unsigned char *p;
	47	if (tp->mtable == NULL) { /* No EEPROM info, use generic code. */
	48	/* Not much that can be done.
	49	Assume this a generic MII or SYM transceiver. */
	50	next_tick = 60*HZ;
	51	if (tulip_debug > 2)
	52	printk(KERN_DEBUG "%s: network media monitor CSR6 %8.8x "
	53	"CSR12 0x%2.2x.\n",
	54	dev->name, ioread32(ioaddr + CSR6), csr12 & 0xff);
	55	break;
	56	}
	57	mleaf = &tp->mtable->mleaf[tp->cur_index];
	58	p = mleaf->leafdata;
	59	switch (mleaf->type) {
	60	case 0: case 4: {
	61	/* Type 0 serial or 4 SYM transceiver. Check the link beat bit. */
	62	int offset = mleaf->type == 4 ? 5 : 2;
	63	s8 bitnum = p[offset];
	64	if (p[offset+1] & 0x80) {
	65	if (tulip_debug > 1)
	66	printk(KERN_DEBUG"%s: Transceiver monitor tick "
	67	"CSR12=%#2.2x, no media sense.\n",
	68	dev->name, csr12);
	69	if (mleaf->type == 4) {
	70	if (mleaf->media == 3 && (csr12 & 0x02))
	71	goto select_next_media;
	72	}
	73	break;
	74	}
	75	if (tulip_debug > 2)
	76	printk(KERN_DEBUG "%s: Transceiver monitor tick: CSR12=%#2.2x"
	77	" bit %d is %d, expecting %d.\n",
	78	dev->name, csr12, (bitnum >> 1) & 7,
	79	(csr12 & (1 << ((bitnum >> 1) & 7))) != 0,
	80	(bitnum >= 0));
	81	/* Check that the specified bit has the proper value. */
	82	if ((bitnum < 0) !=
	83	((csr12 & (1 << ((bitnum >> 1) & 7))) != 0)) {
	84	if (tulip_debug > 2)
	85	printk(KERN_DEBUG "%s: Link beat detected for %s.\n", dev->name,
	86	medianame[mleaf->media & MEDIA_MASK]);
	87	if ((p[2] & 0x61) == 0x01) /* Bogus Znyx board. */
	88	goto actually_mii;
	89	netif_carrier_on(dev);
	90	break;
	91	}
	92	netif_carrier_off(dev);
	93	if (tp->medialock)
	94	break;
	95	select_next_media:
	96	if (--tp->cur_index < 0) {
	97	/* We start again, but should instead look for default. */
	98	tp->cur_index = tp->mtable->leafcount - 1;
	99	}
	100	dev->if_port = tp->mtable->mleaf[tp->cur_index].media;
	101	if (tulip_media_cap[dev->if_port] & MediaIsFD)
	102	goto select_next_media; /* Skip FD entries. */
	103	if (tulip_debug > 1)
	104	printk(KERN_DEBUG "%s: No link beat on media %s,"
	105	" trying transceiver type %s.\n",
	106	dev->name, medianame[mleaf->media & MEDIA_MASK],
	107	medianame[tp->mtable->mleaf[tp->cur_index].media]);
108	tulip_select_media(dev, 0);
109	/* Restart the transmit process. */
110	tulip_restart_rxtx(tp);
111	next_tick = (24*HZ)/10;
112	break;
113	}
114	case 1: case 3: /* 21140, 21142 MII */
115	actually_mii:
116	if (tulip_check_duplex(dev) < 0) {
117	netif_carrier_off(dev);
118	next_tick = 3*HZ;
119	} else {
120	netif_carrier_on(dev);
121	next_tick = 60*HZ;
122	}
123	break;
124	case 2: /* 21142 serial block has no link beat. */
125	default:
126	break;
127	}
128	}
129	break;
130	}
0bb3cf72 FR	131
	132
	133	spin_lock_irqsave(&tp->lock, flags);
	134	if (tp->timeout_recovery) {
	135	tulip_tx_timeout_complete(tp, ioaddr);
	136	tp->timeout_recovery = 0;
	137	}
	138	spin_unlock_irqrestore(&tp->lock, flags);
	139
1da177e4 LT	140	/* mod_timer synchronizes us with potential add_timer calls
	141	* from interrupts.
	142	*/
	143	mod_timer(&tp->timer, RUN_AT(next_tick));
	144	}
	145
	146
	147	void mxic_timer(unsigned long data)
	148	{
	149	struct net_device dev = (struct net_device )data;
	150	struct tulip_private *tp = netdev_priv(dev);
	151	void __iomem *ioaddr = tp->base_addr;
	152	int next_tick = 60*HZ;
	153
	154	if (tulip_debug > 3) {
	155	printk(KERN_INFO"%s: MXIC negotiation status %8.8x.\n", dev->name,
	156	ioread32(ioaddr + CSR12));
	157	}
	158	if (next_tick) {
	159	mod_timer(&tp->timer, RUN_AT(next_tick));
	160	}
	161	}
	162
	163
	164	void comet_timer(unsigned long data)
	165	{
	166	struct net_device dev = (struct net_device )data;
	167	struct tulip_private *tp = netdev_priv(dev);
	168	int next_tick = 60*HZ;
	169
	170	if (tulip_debug > 1)
	171	printk(KERN_DEBUG "%s: Comet link status %4.4x partner capability "
	172	"%4.4x.\n",
	173	dev->name,
	174	tulip_mdio_read(dev, tp->phys[0], 1),
	175	tulip_mdio_read(dev, tp->phys[0], 5));
	176	/* mod_timer synchronizes us with potential add_timer calls
	177	* from interrupts.
	178	*/
	179	if (tulip_check_duplex(dev) < 0)
	180	{ netif_carrier_off(dev); }
	181	else
	182	{ netif_carrier_on(dev); }
	183	mod_timer(&tp->timer, RUN_AT(next_tick));
	184	}
	185