tlan.c

i386的bootloader源码grub

/**************************************************************************
Etherboot -  BOOTP/TFTP Bootstrap Program
TLAN driver for Etherboot
***************************************************************************/

/*
 * This program is free software; you can redistribute it and/or
 * modify it under the terms of the GNU General Public License as
 * published by the Free Software Foundation; either version 2, or (at
 * your option) any later version.
 */

/* to get some global routines like printf */
#include "etherboot.h"
/* to get the interface to the body of the program */
#include "nic.h"
/* to get the PCI support functions, if this is a PCI NIC */
#include "pci.h"
/* to get our own prototype */
#include "cards.h"

	/*****************************************************************
	 * TLan Definitions
	 *
	 ****************************************************************/

#define TLAN_MIN_FRAME_SIZE	64
#define TLAN_MAX_FRAME_SIZE	1600

#define TLAN_NUM_RX_LISTS	32
#define TLAN_NUM_TX_LISTS	64

#define TLAN_IGNORE		0
#define TLAN_RECORD		1

#define TLAN_DBG(lvl, format, args...)	if (debug&lvl) printf("TLAN: " format, ##args );
#define TLAN_DEBUG_GNRL		0x0001
#define TLAN_DEBUG_TX		0x0002
#define TLAN_DEBUG_RX		0x0004 
#define TLAN_DEBUG_LIST		0x0008
#define TLAN_DEBUG_PROBE	0x0010

#define MAX_TLAN_BOARDS		8	 /* Max number of boards installed at a time */

	/*****************************************************************
	 * Device Identification Definitions
	 *
	 ****************************************************************/
		
#define PCI_DEVICE_ID_NETELLIGENT_10_T2			0xB012
#define PCI_DEVICE_ID_NETELLIGENT_10_100_WS_5100	0xB030
#ifndef PCI_DEVICE_ID_OLICOM_OC2183
#define PCI_DEVICE_ID_OLICOM_OC2183			0x0013
#endif
#ifndef PCI_DEVICE_ID_OLICOM_OC2325
#define PCI_DEVICE_ID_OLICOM_OC2325			0x0012
#endif
#ifndef PCI_DEVICE_ID_OLICOM_OC2326
#define PCI_DEVICE_ID_OLICOM_OC2326			0x0014
#endif
#define TLAN_ADAPTER_NONE		0x00000000
#define TLAN_ADAPTER_UNMANAGED_PHY	0x00000001
#define TLAN_ADAPTER_BIT_RATE_PHY	0x00000002
#define TLAN_ADAPTER_USE_INTERN_10	0x00000004
#define TLAN_ADAPTER_ACTIVITY_LED	0x00000008
#define TLAN_SPEED_DEFAULT	0
#define TLAN_SPEED_10		10
#define TLAN_SPEED_100		100
#define TLAN_DUPLEX_DEFAULT	0
#define TLAN_DUPLEX_HALF	1
#define TLAN_DUPLEX_FULL	2
#define TLAN_BUFFERS_PER_LIST	10
#define TLAN_LAST_BUFFER	0x80000000
#define TLAN_CSTAT_UNUSED	0x8000
#define TLAN_CSTAT_FRM_CMP	0x4000
#define TLAN_CSTAT_READY	0x3000
#define TLAN_CSTAT_EOC		0x0800
#define TLAN_CSTAT_RX_ERROR	0x0400
#define TLAN_CSTAT_PASS_CRC	0x0200
#define TLAN_CSTAT_DP_PR	0x0100

	/*****************************************************************
	 * PHY definitions
	 *
	 ****************************************************************/

#define TLAN_PHY_MAX_ADDR	0x1F
#define TLAN_PHY_NONE		0x20

	/*****************************************************************
	 * TLan Driver Timer Definitions
	 *
	 ****************************************************************/

#define TLAN_TIMER_LINK_BEAT		1
#define TLAN_TIMER_ACTIVITY		2
#define TLAN_TIMER_PHY_PDOWN		3
#define TLAN_TIMER_PHY_PUP		4
#define TLAN_TIMER_PHY_RESET		5
#define TLAN_TIMER_PHY_START_LINK	6
#define TLAN_TIMER_PHY_FINISH_AN	7
#define TLAN_TIMER_FINISH_RESET		8
#define TLAN_TIMER_ACT_DELAY		(HZ/10)

	/*****************************************************************
	 * TLan Driver Eeprom Definitions
	 *
	 ****************************************************************/

#define TLAN_EEPROM_ACK		0
#define TLAN_EEPROM_STOP	1

	/*****************************************************************
	 * Host Register Offsets and Contents
	 *
	 ****************************************************************/

#define TLAN_HOST_CMD			0x00
#define 	TLAN_HC_GO		0x80000000
#define		TLAN_HC_STOP		0x40000000
#define		TLAN_HC_ACK		0x20000000
#define		TLAN_HC_CS_MASK		0x1FE00000
#define		TLAN_HC_EOC		0x00100000
#define		TLAN_HC_RT		0x00080000
#define		TLAN_HC_NES		0x00040000
#define		TLAN_HC_AD_RST		0x00008000
#define		TLAN_HC_LD_TMR		0x00004000
#define		TLAN_HC_LD_THR		0x00002000
#define		TLAN_HC_REQ_INT		0x00001000
#define		TLAN_HC_INT_OFF		0x00000800
#define		TLAN_HC_INT_ON		0x00000400
#define		TLAN_HC_AC_MASK		0x000000FF
#define TLAN_CH_PARM			0x04
#define TLAN_DIO_ADR			0x08
#define		TLAN_DA_ADR_INC		0x8000
#define		TLAN_DA_RAM_ADR		0x4000
#define TLAN_HOST_INT			0x0A
#define		TLAN_HI_IV_MASK		0x1FE0
#define		TLAN_HI_IT_MASK		0x001C
#define TLAN_DIO_DATA			0x0C

/* ThunderLAN Internal Register DIO Offsets */

#define TLAN_NET_CMD			0x00
#define		TLAN_NET_CMD_NRESET	0x80
#define		TLAN_NET_CMD_NWRAP	0x40
#define		TLAN_NET_CMD_CSF	0x20
#define		TLAN_NET_CMD_CAF	0x10
#define		TLAN_NET_CMD_NOBRX	0x08
#define		TLAN_NET_CMD_DUPLEX	0x04
#define		TLAN_NET_CMD_TRFRAM	0x02
#define		TLAN_NET_CMD_TXPACE	0x01
#define TLAN_NET_SIO			0x01
#define 	TLAN_NET_SIO_MINTEN	0x80
#define		TLAN_NET_SIO_ECLOK	0x40
#define		TLAN_NET_SIO_ETXEN	0x20
#define		TLAN_NET_SIO_EDATA	0x10
#define		TLAN_NET_SIO_NMRST	0x08
#define		TLAN_NET_SIO_MCLK	0x04
#define		TLAN_NET_SIO_MTXEN	0x02
#define		TLAN_NET_SIO_MDATA	0x01
#define TLAN_NET_STS			0x02
#define		TLAN_NET_STS_MIRQ	0x80
#define		TLAN_NET_STS_HBEAT	0x40
#define		TLAN_NET_STS_TXSTOP	0x20
#define		TLAN_NET_STS_RXSTOP	0x10
#define		TLAN_NET_STS_RSRVD	0x0F
#define TLAN_NET_MASK			0x03
#define		TLAN_NET_MASK_MASK7	0x80
#define		TLAN_NET_MASK_MASK6	0x40
#define		TLAN_NET_MASK_MASK5	0x20
#define		TLAN_NET_MASK_MASK4	0x10
#define		TLAN_NET_MASK_RSRVD	0x0F
#define TLAN_NET_CONFIG			0x04
#define 	TLAN_NET_CFG_RCLK	0x8000
#define		TLAN_NET_CFG_TCLK	0x4000
#define		TLAN_NET_CFG_BIT	0x2000
#define		TLAN_NET_CFG_RXCRC	0x1000
#define		TLAN_NET_CFG_PEF	0x0800
#define		TLAN_NET_CFG_1FRAG	0x0400
#define		TLAN_NET_CFG_1CHAN	0x0200
#define		TLAN_NET_CFG_MTEST	0x0100
#define		TLAN_NET_CFG_PHY_EN	0x0080
#define		TLAN_NET_CFG_MSMASK	0x007F
#define TLAN_MAN_TEST			0x06
#define TLAN_DEF_VENDOR_ID		0x08
#define TLAN_DEF_DEVICE_ID		0x0A
#define TLAN_DEF_REVISION		0x0C
#define TLAN_DEF_SUBCLASS		0x0D
#define TLAN_DEF_MIN_LAT		0x0E
#define TLAN_DEF_MAX_LAT		0x0F
#define TLAN_AREG_0			0x10
#define TLAN_AREG_1			0x16
#define TLAN_AREG_2			0x1C
#define TLAN_AREG_3			0x22
#define TLAN_HASH_1			0x28
#define TLAN_HASH_2			0x2C
#define TLAN_GOOD_TX_FRMS		0x30
#define TLAN_TX_UNDERUNS		0x33
#define TLAN_GOOD_RX_FRMS		0x34
#define TLAN_RX_OVERRUNS		0x37
#define TLAN_DEFERRED_TX		0x38
#define TLAN_CRC_ERRORS			0x3A
#define TLAN_CODE_ERRORS		0x3B
#define TLAN_MULTICOL_FRMS		0x3C
#define TLAN_SINGLECOL_FRMS		0x3E
#define TLAN_EXCESSCOL_FRMS		0x40
#define TLAN_LATE_COLS			0x41
#define TLAN_CARRIER_LOSS		0x42
#define TLAN_ACOMMIT			0x43
#define TLAN_LED_REG			0x44
#define		TLAN_LED_ACT		0x10
#define		TLAN_LED_LINK		0x01
#define TLAN_BSIZE_REG			0x45
#define TLAN_MAX_RX			0x46
#define TLAN_INT_DIS			0x48
#define		TLAN_ID_TX_EOC		0x04
#define		TLAN_ID_RX_EOF		0x02
#define		TLAN_ID_RX_EOC		0x01

/* ThunderLAN Interrupt Codes */

#define TLAN_INT_NUMBER_OF_INTS	8

#define TLAN_INT_NONE			0x0000
#define TLAN_INT_TX_EOF			0x0001
#define TLAN_INT_STAT_OVERFLOW		0x0002
#define TLAN_INT_RX_EOF			0x0003
#define TLAN_INT_DUMMY			0x0004
#define TLAN_INT_TX_EOC			0x0005
#define TLAN_INT_STATUS_CHECK		0x0006
#define TLAN_INT_RX_EOC			0x0007
#define TLAN_TLPHY_ID			0x10
#define TLAN_TLPHY_CTL			0x11
#define 	TLAN_TC_IGLINK		0x8000
#define		TLAN_TC_SWAPOL		0x4000
#define		TLAN_TC_AUISEL		0x2000
#define		TLAN_TC_SQEEN		0x1000
#define		TLAN_TC_MTEST		0x0800
#define		TLAN_TC_RESERVED	0x07F8
#define		TLAN_TC_NFEW		0x0004
#define		TLAN_TC_INTEN		0x0002
#define		TLAN_TC_TINT		0x0001
#define TLAN_TLPHY_STS			0x12
#define		TLAN_TS_MINT		0x8000
#define		TLAN_TS_PHOK		0x4000
#define		TLAN_TS_POLOK		0x2000
#define		TLAN_TS_TPENERGY	0x1000
#define		TLAN_TS_RESERVED	0x0FFF
#define TLAN_TLPHY_PAR			0x19
#define		TLAN_PHY_CIM_STAT	0x0020
#define		TLAN_PHY_SPEED_100	0x0040
#define		TLAN_PHY_DUPLEX_FULL	0x0080
#define		TLAN_PHY_AN_EN_STAT     0x0400


/* ThunderLAN MII Registers */

/* Generic MII/PHY Registers */

#define MII_GEN_CTL			0x00
#define 	MII_GC_RESET		0x8000
#define		MII_GC_LOOPBK		0x4000
#define		MII_GC_SPEEDSEL		0x2000
#define		MII_GC_AUTOENB		0x1000
#define		MII_GC_PDOWN		0x0800
#define		MII_GC_ISOLATE		0x0400
#define		MII_GC_AUTORSRT		0x0200
#define		MII_GC_DUPLEX		0x0100
#define		MII_GC_COLTEST		0x0080
#define		MII_GC_RESERVED		0x007F
#define MII_GEN_STS			0x01
#define		MII_GS_100BT4		0x8000
#define		MII_GS_100BTXFD		0x4000
#define		MII_GS_100BTXHD		0x2000
#define		MII_GS_10BTFD		0x1000
#define		MII_GS_10BTHD		0x0800
#define		MII_GS_RESERVED		0x07C0
#define		MII_GS_AUTOCMPLT	0x0020
#define		MII_GS_RFLT		0x0010
#define		MII_GS_AUTONEG		0x0008
#define		MII_GS_LINK		0x0004
#define		MII_GS_JABBER		0x0002
#define		MII_GS_EXTCAP		0x0001
#define MII_GEN_ID_HI			0x02
#define MII_GEN_ID_LO			0x03
#define 	MII_GIL_OUI		0xFC00
#define 	MII_GIL_MODEL		0x03F0
#define 	MII_GIL_REVISION	0x000F
#define MII_AN_ADV			0x04
#define MII_AN_LPA			0x05
#define MII_AN_EXP			0x06

/* ThunderLAN Specific MII/PHY Registers */

#define 	TLAN_TC_IGLINK		0x8000
#define		TLAN_TC_SWAPOL		0x4000
#define		TLAN_TC_AUISEL		0x2000
#define		TLAN_TC_SQEEN		0x1000
#define		TLAN_TC_MTEST		0x0800
#define		TLAN_TC_RESERVED	0x07F8
#define		TLAN_TC_NFEW		0x0004
#define		TLAN_TC_INTEN		0x0002
#define		TLAN_TC_TINT		0x0001
#define		TLAN_TS_MINT		0x8000
#define		TLAN_TS_PHOK		0x4000
#define		TLAN_TS_POLOK		0x2000
#define		TLAN_TS_TPENERGY	0x1000
#define		TLAN_TS_RESERVED	0x0FFF
#define		TLAN_PHY_CIM_STAT	0x0020
#define		TLAN_PHY_SPEED_100	0x0040
#define		TLAN_PHY_DUPLEX_FULL	0x0080
#define		TLAN_PHY_AN_EN_STAT     0x0400

/* National Sem. & Level1 PHY id's */
#define NAT_SEM_ID1			0x2000
#define NAT_SEM_ID2			0x5C01
#define LEVEL1_ID1			0x7810
#define LEVEL1_ID2			0x0000

#define TLan_ClearBit( bit, port )	outb_p(inb_p(port) & ~bit, port)
#define TLan_GetBit( bit, port )	((int) (inb_p(port) & bit))
#define TLan_SetBit( bit, port )	outb_p(inb_p(port) | bit, port)

typedef	unsigned int	u32;
typedef	unsigned short	u16;
typedef	unsigned char	u8;

/* Routines to access internal registers. */

inline u8 TLan_DioRead8(u16 base_addr, u16 internal_addr)
{
	outw(internal_addr, base_addr + TLAN_DIO_ADR);
	return (inb((base_addr + TLAN_DIO_DATA) + (internal_addr & 0x3)));
	
} /* TLan_DioRead8 */

inline u16 TLan_DioRead16(u16 base_addr, u16 internal_addr)
{
	outw(internal_addr, base_addr + TLAN_DIO_ADR);
	return (inw((base_addr + TLAN_DIO_DATA) + (internal_addr & 0x2)));

} /* TLan_DioRead16 */

inline u32 TLan_DioRead32(u16 base_addr, u16 internal_addr)
{
	outw(internal_addr, base_addr + TLAN_DIO_ADR);
	return (inl(base_addr + TLAN_DIO_DATA));

} /* TLan_DioRead32 */

inline void TLan_DioWrite8(u16 base_addr, u16 internal_addr, u8 data)
{
	outw(internal_addr, base_addr + TLAN_DIO_ADR);
	outb(data, base_addr + TLAN_DIO_DATA + (internal_addr & 0x3));

}

inline void TLan_DioWrite16(u16 base_addr, u16 internal_addr, u16 data)
{
	outw(internal_addr, base_addr + TLAN_DIO_ADR);
	outw(data, base_addr + TLAN_DIO_DATA + (internal_addr & 0x2));

}

inline void TLan_DioWrite32(u16 base_addr, u16 internal_addr, u32 data)
{
	outw(internal_addr, base_addr + TLAN_DIO_ADR);
	outl(data, base_addr + TLAN_DIO_DATA + (internal_addr & 0x2));

}

/* NIC specific static variables go here */

/*****************************************************************************
******************************************************************************

	ThunderLAN Driver Eeprom routines

	The Compaq Netelligent 10 and 10/100 cards use a Microchip 24C02A
	EEPROM.  These functions are based on information in Microchip's
	data sheet.  I don't know how well this functions will work with
	other EEPROMs.

******************************************************************************
*****************************************************************************/

	/***************************************************************
	 *	TLan_EeSendStart
	 *
	 *	Returns:
	 *		Nothing
	 *	Parms:	
	 *		io_base		The IO port base address for the
	 *				TLAN device with the EEPROM to
	 *				use.
	 *
	 *	This function sends a start cycle to an EEPROM attached
	 *	to a TLAN chip.
	 *
	 **************************************************************/

static void TLan_EeSendStart( u16 io_base )
{
	u16	sio;

	outw( TLAN_NET_SIO, io_base + TLAN_DIO_ADR );
	sio = io_base + TLAN_DIO_DATA + TLAN_NET_SIO;

	TLan_SetBit( TLAN_NET_SIO_ECLOK, sio );
	TLan_SetBit( TLAN_NET_SIO_EDATA, sio );
	TLan_SetBit( TLAN_NET_SIO_ETXEN, sio );
	TLan_ClearBit( TLAN_NET_SIO_EDATA, sio );
	TLan_ClearBit( TLAN_NET_SIO_ECLOK, sio );