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linux-next/drivers/net/tlan.h
Eric Dumazet 807540baae drivers/net: return operator cleanup 
Change "return (EXPR);" to "return EXPR;"

return is not a function, parentheses are not required.

Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2010-09-26 18:34:29 -07:00

543 lines
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#ifndef TLAN_H
#define TLAN_H
/********************************************************************
*
* Linux ThunderLAN Driver
*
* tlan.h
* by James Banks
*
* (C) 1997-1998 Caldera, Inc.
* (C) 1999-2001 Torben Mathiasen
*
* This software may be used and distributed according to the terms
* of the GNU General Public License, incorporated herein by reference.
*
*
* Dec 10, 1999 Torben Mathiasen <torben.mathiasen@compaq.com>
* New Maintainer
*
********************************************************************/
#include <asm/io.h>
#include <asm/types.h>
#include <linux/netdevice.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...) \
do { if (debug&lvl) printk(KERN_DEBUG "TLAN: " format, ##args ); } while(0)
#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 TX_TIMEOUT (10*HZ) /* We need time for auto-neg */
#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
typedef struct tlan_adapter_entry {
u16 vendorId;
u16 deviceId;
char *deviceLabel;
u32 flags;
u16 addrOfs;
} TLanAdapterEntry;
#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
/*****************************************************************
* EISA Definitions
*
****************************************************************/
#define EISA_ID 0xc80 /* EISA ID Registers */
#define EISA_ID0 0xc80 /* EISA ID Register 0 */
#define EISA_ID1 0xc81 /* EISA ID Register 1 */
#define EISA_ID2 0xc82 /* EISA ID Register 2 */
#define EISA_ID3 0xc83 /* EISA ID Register 3 */
#define EISA_CR 0xc84 /* EISA Control Register */
#define EISA_REG0 0xc88 /* EISA Configuration Register 0 */
#define EISA_REG1 0xc89 /* EISA Configuration Register 1 */
#define EISA_REG2 0xc8a /* EISA Configuration Register 2 */
#define EISA_REG3 0xc8f /* EISA Configuration Register 3 */
#define EISA_APROM 0xc90 /* Ethernet Address PROM */
/*****************************************************************
* Rx/Tx List Definitions
*
****************************************************************/
#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
typedef struct tlan_buffer_ref_tag {
u32 count;
u32 address;
} TLanBufferRef;
typedef struct tlan_list_tag {
u32 forward;
u16 cStat;
u16 frameSize;
TLanBufferRef buffer[TLAN_BUFFERS_PER_LIST];
} TLanList;
typedef u8 TLanBuffer[TLAN_MAX_FRAME_SIZE];
/*****************************************************************
* PHY definitions
*
****************************************************************/
#define TLAN_PHY_MAX_ADDR 0x1F
#define TLAN_PHY_NONE 0x20
/*****************************************************************
* TLAN Private Information Structure
*
****************************************************************/
typedef struct tlan_private_tag {
struct net_device *nextDevice;
struct pci_dev *pciDev;
struct net_device *dev;
void *dmaStorage;
dma_addr_t dmaStorageDMA;
unsigned int dmaSize;
u8 *padBuffer;
TLanList *rxList;
dma_addr_t rxListDMA;
u8 *rxBuffer;
dma_addr_t rxBufferDMA;
u32 rxHead;
u32 rxTail;
u32 rxEocCount;
TLanList *txList;
dma_addr_t txListDMA;
u8 *txBuffer;
dma_addr_t txBufferDMA;
u32 txHead;
u32 txInProgress;
u32 txTail;
u32 txBusyCount;
u32 phyOnline;
u32 timerSetAt;
u32 timerType;
struct timer_list timer;
struct board *adapter;
u32 adapterRev;
u32 aui;
u32 debug;
u32 duplex;
u32 phy[2];
u32 phyNum;
u32 speed;
u8 tlanRev;
u8 tlanFullDuplex;
spinlock_t lock;
u8 link;
u8 is_eisa;
struct work_struct tlan_tqueue;
u8 neg_be_verbose;
} TLanPrivateInfo;
/*****************************************************************
* 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
/* 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_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
/* 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 CIRC_INC( a, b ) if ( ++a >= b ) a = 0
/* Routines to access internal registers. */
static 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 */
static 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 */
static 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 */
static 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));
}
static 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));
}
static 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));
}
#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)
/*
* given 6 bytes, view them as 8 6-bit numbers and return the XOR of those
* the code below is about seven times as fast as the original code
*
* The original code was:
*
* u32 xor( u32 a, u32 b ) { return ( ( a && ! b ) || ( ! a && b ) ); }
*
* #define XOR8( a, b, c, d, e, f, g, h ) \
* xor( a, xor( b, xor( c, xor( d, xor( e, xor( f, xor( g, h ) ) ) ) ) ) )
* #define DA( a, bit ) ( ( (u8) a[bit/8] ) & ( (u8) ( 1 << bit%8 ) ) )
*
* hash = XOR8( DA(a,0), DA(a, 6), DA(a,12), DA(a,18), DA(a,24),
* DA(a,30), DA(a,36), DA(a,42) );
* hash |= XOR8( DA(a,1), DA(a, 7), DA(a,13), DA(a,19), DA(a,25),
* DA(a,31), DA(a,37), DA(a,43) ) << 1;
* hash |= XOR8( DA(a,2), DA(a, 8), DA(a,14), DA(a,20), DA(a,26),
* DA(a,32), DA(a,38), DA(a,44) ) << 2;
* hash |= XOR8( DA(a,3), DA(a, 9), DA(a,15), DA(a,21), DA(a,27),
* DA(a,33), DA(a,39), DA(a,45) ) << 3;
* hash |= XOR8( DA(a,4), DA(a,10), DA(a,16), DA(a,22), DA(a,28),
* DA(a,34), DA(a,40), DA(a,46) ) << 4;
* hash |= XOR8( DA(a,5), DA(a,11), DA(a,17), DA(a,23), DA(a,29),
* DA(a,35), DA(a,41), DA(a,47) ) << 5;
*
*/
static inline u32 TLan_HashFunc( const u8 *a )
{
u8 hash;
hash = (a[0]^a[3]); /* & 077 */
hash ^= ((a[0]^a[3])>>6); /* & 003 */
hash ^= ((a[1]^a[4])<<2); /* & 074 */
hash ^= ((a[1]^a[4])>>4); /* & 017 */
hash ^= ((a[2]^a[5])<<4); /* & 060 */
hash ^= ((a[2]^a[5])>>2); /* & 077 */
return hash & 077;
}
#endif
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