grub-0.97/netboot/tlan.c

23 *    along with this program; if not, write to the Free Software
47 /* to get some global routines like printf */
49 /* to get the interface to the body of the program */
51 /* to get the PCI support functions, if this is a PCI NIC */
266 *			stuctures to be reset.
269 *	the TLAN lists to their initial values.
322 *		dev	Pointer to device structure of adapter
323 *			to be reset.
327 *	Programmer's Guide" for details.  The routine tries to
372 /*  6.	Unreset the MII by setting NMRST (in NetSio) to 1. */
531 	/* return true if there's an ethernet packet ready to read */
589 	return (1);		/* initially as this is called to flush the input */
617 	u32 to;
653 	/* send the packet to destination */
723 	to = currticks() + TX_TIME_OUT;
724 	while ((tail_list->cStat == TLAN_CSTAT_READY) && currticks() < to);
768 	if (currticks() >= to) {
789 	 * This allows etherboot to reinitialize the interface
828 PROBE - Look for an adapter, this routine's visible to the outside
861 	/* Point to private storage */
914 	/* point to NIC specific routines */
952 	 *				TLAN device with the EEPROM to
955 	 *	This function sends a start cycle to an EEPROM attached
956 	 *	to a TLAN chip.
984 	 *				TLAN device with the EEPROM to
986 	 *		data		The 8 bits of information to
987 	 *				send to the EEPROM.
994 	 *	driving the clock to send each bit. The function then
1044 	 *				TLAN device with the EEPROM to
1046 	 *		data		An address to a char to hold the
1055 	 *	ack and a stop bit.  This function is used to retrieve
1105 	 *				TLAN device with the EEPROM to
1108 	 *				EEPROM whose contents are to be
1110 	 *		data		An address to a char to hold the
1172 	 *		phy		The address of the PHY to be queried.
1173 	 *		reg		The register whose contents are to be
1175 	 *		val		A pointer to a variable to store the
1178 	 *	This function uses the TLAN's MII bus to retreive the contents
1254 	 *		dev		The address of the PHY to be queried.
1255 	 *		data		The value to be placed on the MII bus.
1256 	 *		num_bits	The number of bits in data that are to
1332 	 *				to write to.
1333 	 *		phy		The address of the PHY to be written to.
1334 	 *		reg		The register whose contents are to be
1336 	 *		val		The value to be written to the register.
1338 	 *	This function uses the TLAN's MII bus to write the contents of a
1382 	 *		dev	Pointer to device structure of adapter
1383 	 *			on which to change the AREG.
1384 	 *		areg	The AREG to set the address in (0 - 3).
1385 	 *		mac	A pointer to an array of chars.  Each
1389 	 *	This function transfers a MAC address to one of the
1391 	 *	the register on writing to offset 0 and unlocks the
1392 	 *	register after writing to offset 5.  If NULL is passed
1420 	 *		dev	A pointer to the device structure of the adapter
1495 	 * This is abitrary.  It is intended to make sure the
1542 	 * I've changed this to 50ms, as it seems long enough.
1562 	printf("%s: Trying to activate link.\n", priv->nic_name);
1592 			 * to complete.  The max spec time is less than this
1593 			 * but the card need additional time to start AN.
1635 	/* Wait for 2 sec to give the tranceiver time
1636 	 * to establish link.
1661 		/* Wait for 8 sec to give the process
1670 			    ("TLAN:  been properly connected to a HUB or Switch.\n");
1672 			    ("TLAN:  Trying to establish link in the background...\n");
1743         *      register via the MII bus. This can be used to give info
1744         *      about link changes (up/down), and possible switch to alternate