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linux-pinenote/drivers/scsi/tmscsim.h
Boaz Harrosh 0ab179bcf3 [SCSI] tmscsim: Further clean-up of the driver 
- The saved sg_count was a leftover from the time the driver was doing
   dma mapping by himself. But now that scsi-ml is called for the mapping
   it is not the drivers responsibility.

Signed-off-by: Boaz Harrosh <bharrosh@panasas.com>
Acked-by: G. Liakhovetski <g.liakhovetski@gmx.de>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
2007-07-14 18:56:33 -05:00

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/***********************************************************************
;* File Name : TMSCSIM.H *
;* TEKRAM DC-390(T) PCI SCSI Bus Master Host Adapter *
;* Device Driver *
;***********************************************************************/
/* $Id: tmscsim.h,v 2.15.2.3 2000/11/17 20:52:27 garloff Exp $ */
#ifndef _TMSCSIM_H
#define _TMSCSIM_H
#include <linux/types.h>
#define SCSI_IRQ_NONE 255
#define MAX_ADAPTER_NUM 4
#define MAX_SG_LIST_BUF 16 /* Not used */
#define MAX_SCSI_ID 8
#define MAX_SRB_CNT 50 /* Max number of started commands */
#define SEL_TIMEOUT 153 /* 250 ms selection timeout (@ 40 MHz) */
/*
;-----------------------------------------------------------------------
; SCSI Request Block
;-----------------------------------------------------------------------
*/
struct dc390_srb
{
//u8 CmdBlock[12];
struct dc390_srb *pNextSRB;
struct dc390_dcb *pSRBDCB;
struct scsi_cmnd *pcmd;
struct scatterlist *pSegmentList;
struct scatterlist Segmentx; /* make a one entry of S/G list table */
unsigned long SGBusAddr; /*;a segment starting address as seen by AM53C974A
in CPU endianness. We're only getting 32-bit bus
addresses by default */
unsigned long SGToBeXferLen; /*; to be xfer length */
unsigned long TotalXferredLen;
unsigned long SavedTotXLen;
unsigned long Saved_Ptr;
u32 SRBState;
u8 SRBStatus;
u8 SRBFlag; /*; b0-AutoReqSense,b6-Read,b7-write */
/*; b4-settimeout,b5-Residual valid */
u8 AdaptStatus;
u8 TargetStatus;
u8 ScsiPhase;
s8 TagNumber;
u8 SGIndex;
u8 SGcount;
u8 MsgCnt;
u8 EndMessage;
u8 MsgInBuf[6];
u8 MsgOutBuf[6];
//u8 IORBFlag; /*;81h-Reset, 2-retry */
};
/*
;-----------------------------------------------------------------------
; Device Control Block
;-----------------------------------------------------------------------
*/
struct dc390_dcb
{
struct dc390_dcb *pNextDCB;
struct dc390_acb *pDCBACB;
/* Queued SRBs */
struct dc390_srb *pGoingSRB;
struct dc390_srb *pGoingLast;
struct dc390_srb *pActiveSRB;
u8 GoingSRBCnt;
u32 TagMask;
u8 TargetID; /*; SCSI Target ID (SCSI Only) */
u8 TargetLUN; /*; SCSI Log. Unit (SCSI Only) */
u8 DevMode;
u8 DCBFlag;
u8 CtrlR1;
u8 CtrlR3;
u8 CtrlR4;
u8 SyncMode; /*; 0:async mode */
u8 NegoPeriod; /*;for nego. */
u8 SyncPeriod; /*;for reg. */
u8 SyncOffset; /*;for reg. and nego.(low nibble) */
};
/*
;-----------------------------------------------------------------------
; Adapter Control Block
;-----------------------------------------------------------------------
*/
struct dc390_acb
{
struct Scsi_Host *pScsiHost;
u16 IOPortBase;
u8 IRQLevel;
u8 status;
u8 SRBCount;
u8 AdapterIndex; /*; nth Adapter this driver */
u8 DCBCnt;
u8 TagMaxNum;
u8 ACBFlag;
u8 Gmode2;
u8 scan_devices;
struct dc390_dcb *pLinkDCB;
struct dc390_dcb *pLastDCB;
struct dc390_dcb *pDCBRunRobin;
struct dc390_dcb *pActiveDCB;
struct dc390_srb *pFreeSRB;
struct dc390_srb *pTmpSRB;
u8 msgin123[4];
u8 Connected;
u8 pad;
#if defined(USE_SPINLOCKS) && USE_SPINLOCKS > 1 && (defined(CONFIG_SMP) || DEBUG_SPINLOCKS > 0)
spinlock_t lock;
#endif
u8 sel_timeout;
u8 glitch_cfg;
u8 MsgLen;
u8 Ignore_IRQ; /* Not used */
struct pci_dev *pdev;
unsigned long Cmds;
u32 SelLost;
u32 SelConn;
u32 CmdInQ;
u32 CmdOutOfSRB;
struct dc390_srb TmpSRB;
struct dc390_srb SRB_array[MAX_SRB_CNT]; /* 50 SRBs */
};
/*;-----------------------------------------------------------------------*/
#define BIT31 0x80000000
#define BIT30 0x40000000
#define BIT29 0x20000000
#define BIT28 0x10000000
#define BIT27 0x08000000
#define BIT26 0x04000000
#define BIT25 0x02000000
#define BIT24 0x01000000
#define BIT23 0x00800000
#define BIT22 0x00400000
#define BIT21 0x00200000
#define BIT20 0x00100000
#define BIT19 0x00080000
#define BIT18 0x00040000
#define BIT17 0x00020000
#define BIT16 0x00010000
#define BIT15 0x00008000
#define BIT14 0x00004000
#define BIT13 0x00002000
#define BIT12 0x00001000
#define BIT11 0x00000800
#define BIT10 0x00000400
#define BIT9 0x00000200
#define BIT8 0x00000100
#define BIT7 0x00000080
#define BIT6 0x00000040
#define BIT5 0x00000020
#define BIT4 0x00000010
#define BIT3 0x00000008
#define BIT2 0x00000004
#define BIT1 0x00000002
#define BIT0 0x00000001
/*;---UnitCtrlFlag */
#define UNIT_ALLOCATED BIT0
#define UNIT_INFO_CHANGED BIT1
#define FORMATING_MEDIA BIT2
#define UNIT_RETRY BIT3
/*;---UnitFlags */
#define DASD_SUPPORT BIT0
#define SCSI_SUPPORT BIT1
#define ASPI_SUPPORT BIT2
/*;----SRBState machine definition */
#define SRB_FREE 0
#define SRB_WAIT BIT0
#define SRB_READY BIT1
#define SRB_MSGOUT BIT2 /*;arbitration+msg_out 1st byte*/
#define SRB_MSGIN BIT3
#define SRB_MSGIN_MULTI BIT4
#define SRB_COMMAND BIT5
#define SRB_START_ BIT6 /*;arbitration+msg_out+command_out*/
#define SRB_DISCONNECT BIT7
#define SRB_DATA_XFER BIT8
#define SRB_XFERPAD BIT9
#define SRB_STATUS BIT10
#define SRB_COMPLETED BIT11
#define SRB_ABORT_SENT BIT12
#define DO_SYNC_NEGO BIT13
#define SRB_UNEXPECT_RESEL BIT14
/*;---SRBstatus */
#define SRB_OK BIT0
#define ABORTION BIT1
#define OVER_RUN BIT2
#define UNDER_RUN BIT3
#define PARITY_ERROR BIT4
#define SRB_ERROR BIT5
/*;---ACBFlag */
#define RESET_DEV BIT0
#define RESET_DETECT BIT1
#define RESET_DONE BIT2
/*;---DCBFlag */
#define ABORT_DEV_ BIT0
/*;---SRBFlag */
#define DATAOUT BIT7
#define DATAIN BIT6
#define RESIDUAL_VALID BIT5
#define ENABLE_TIMER BIT4
#define RESET_DEV0 BIT2
#define ABORT_DEV BIT1
#define AUTO_REQSENSE BIT0
/*;---Adapter status */
#define H_STATUS_GOOD 0
#define H_SEL_TIMEOUT 0x11
#define H_OVER_UNDER_RUN 0x12
#define H_UNEXP_BUS_FREE 0x13
#define H_TARGET_PHASE_F 0x14
#define H_INVALID_CCB_OP 0x16
#define H_LINK_CCB_BAD 0x17
#define H_BAD_TARGET_DIR 0x18
#define H_DUPLICATE_CCB 0x19
#define H_BAD_CCB_OR_SG 0x1A
#define H_ABORT 0x0FF
/* cmd->result */
#define RES_TARGET 0x000000FF /* Target State */
#define RES_TARGET_LNX STATUS_MASK /* Only official ... */
#define RES_ENDMSG 0x0000FF00 /* End Message */
#define RES_DID 0x00FF0000 /* DID_ codes */
#define RES_DRV 0xFF000000 /* DRIVER_ codes */
#define MK_RES(drv,did,msg,tgt) ((int)(drv)<<24 | (int)(did)<<16 | (int)(msg)<<8 | (int)(tgt))
#define MK_RES_LNX(drv,did,msg,tgt) ((int)(drv)<<24 | (int)(did)<<16 | (int)(msg)<<8 | (int)(tgt))
#define SET_RES_TARGET(who, tgt) do { who &= ~RES_TARGET; who |= (int)(tgt); } while (0)
#define SET_RES_TARGET_LNX(who, tgt) do { who &= ~RES_TARGET_LNX; who |= (int)(tgt) << 1; } while (0)
#define SET_RES_MSG(who, msg) do { who &= ~RES_ENDMSG; who |= (int)(msg) << 8; } while (0)
#define SET_RES_DID(who, did) do { who &= ~RES_DID; who |= (int)(did) << 16; } while (0)
#define SET_RES_DRV(who, drv) do { who &= ~RES_DRV; who |= (int)(drv) << 24; } while (0)
/*;---Sync_Mode */
#define SYNC_DISABLE 0
#define SYNC_ENABLE BIT0
#define SYNC_NEGO_DONE BIT1
#define WIDE_ENABLE BIT2 /* Not used ;-) */
#define WIDE_NEGO_DONE BIT3 /* Not used ;-) */
#define EN_TAG_QUEUEING BIT4
#define EN_ATN_STOP BIT5
#define SYNC_NEGO_OFFSET 15
/*;---SCSI bus phase*/
#define SCSI_DATA_OUT 0
#define SCSI_DATA_IN 1
#define SCSI_COMMAND 2
#define SCSI_STATUS_ 3
#define SCSI_NOP0 4
#define SCSI_NOP1 5
#define SCSI_MSG_OUT 6
#define SCSI_MSG_IN 7
/*;----SCSI MSG BYTE*/ /* see scsi/scsi.h */ /* One is missing ! */
#define ABORT_TAG 0x0d
/*
* SISC query queue
*/
typedef struct {
dma_addr_t saved_dma_handle;
} dc390_cmd_scp_t;
/*
;==========================================================
; EEPROM byte offset
;==========================================================
*/
typedef struct _EEprom
{
u8 EE_MODE1;
u8 EE_SPEED;
u8 xx1;
u8 xx2;
} EEprom, *PEEprom;
#define REAL_EE_ADAPT_SCSI_ID 64
#define REAL_EE_MODE2 65
#define REAL_EE_DELAY 66
#define REAL_EE_TAG_CMD_NUM 67
#define EE_ADAPT_SCSI_ID 32
#define EE_MODE2 33
#define EE_DELAY 34
#define EE_TAG_CMD_NUM 35
#define EE_LEN 40
/*; EE_MODE1 bits definition*/
#define PARITY_CHK_ BIT0
#define SYNC_NEGO_ BIT1
#define EN_DISCONNECT_ BIT2
#define SEND_START_ BIT3
#define TAG_QUEUEING_ BIT4
/*; EE_MODE2 bits definition*/
#define MORE2_DRV BIT0
#define GREATER_1G BIT1
#define RST_SCSI_BUS BIT2
#define ACTIVE_NEGATION BIT3
#define NO_SEEK BIT4
#define LUN_CHECK BIT5
#define ENABLE_CE 1
#define DISABLE_CE 0
#define EEPROM_READ 0x80
/*
;==========================================================
; AMD 53C974 Registers bit Definition
;==========================================================
*/
/*
;====================
; SCSI Register
;====================
*/
/*; Command Reg.(+0CH) (rw) */
#define DMA_COMMAND BIT7
#define NOP_CMD 0
#define CLEAR_FIFO_CMD 1
#define RST_DEVICE_CMD 2
#define RST_SCSI_BUS_CMD 3
#define INFO_XFER_CMD 0x10
#define INITIATOR_CMD_CMPLTE 0x11
#define MSG_ACCEPTED_CMD 0x12
#define XFER_PAD_BYTE 0x18
#define SET_ATN_CMD 0x1A
#define RESET_ATN_CMD 0x1B
#define SEL_WO_ATN 0x41 /* currently not used */
#define SEL_W_ATN 0x42
#define SEL_W_ATN_STOP 0x43
#define SEL_W_ATN3 0x46
#define EN_SEL_RESEL 0x44
#define DIS_SEL_RESEL 0x45 /* currently not used */
#define RESEL 0x40 /* " */
#define RESEL_ATN3 0x47 /* " */
#define DATA_XFER_CMD INFO_XFER_CMD
/*; SCSI Status Reg.(+10H) (r) */
#define INTERRUPT BIT7
#define ILLEGAL_OP_ERR BIT6
#define PARITY_ERR BIT5
#define COUNT_2_ZERO BIT4
#define GROUP_CODE_VALID BIT3
#define SCSI_PHASE_MASK (BIT2+BIT1+BIT0)
/* BIT2: MSG phase; BIT1: C/D physe; BIT0: I/O phase */
/*; Interrupt Status Reg.(+14H) (r) */
#define SCSI_RESET BIT7
#define INVALID_CMD BIT6
#define DISCONNECTED BIT5
#define SERVICE_REQUEST BIT4
#define SUCCESSFUL_OP BIT3
#define RESELECTED BIT2
#define SEL_ATTENTION BIT1
#define SELECTED BIT0
/*; Internal State Reg.(+18H) (r) */
#define SYNC_OFFSET_FLAG BIT3
#define INTRN_STATE_MASK (BIT2+BIT1+BIT0)
/* 0x04: Sel. successful (w/o stop), 0x01: Sel. successful (w/ stop) */
/*; Clock Factor Reg.(+24H) (w) */
#define CLK_FREQ_40MHZ 0
#define CLK_FREQ_35MHZ (BIT2+BIT1+BIT0)
#define CLK_FREQ_30MHZ (BIT2+BIT1)
#define CLK_FREQ_25MHZ (BIT2+BIT0)
#define CLK_FREQ_20MHZ BIT2
#define CLK_FREQ_15MHZ (BIT1+BIT0)
#define CLK_FREQ_10MHZ BIT1
/*; Control Reg. 1(+20H) (rw) */
#define EXTENDED_TIMING BIT7
#define DIS_INT_ON_SCSI_RST BIT6
#define PARITY_ERR_REPO BIT4
#define SCSI_ID_ON_BUS (BIT2+BIT1+BIT0) /* host adapter ID */
/*; Control Reg. 2(+2CH) (rw) */
#define EN_FEATURE BIT6
#define EN_SCSI2_CMD BIT3
/*; Control Reg. 3(+30H) (rw) */
#define ID_MSG_CHECK BIT7
#define EN_QTAG_MSG BIT6
#define EN_GRP2_CMD BIT5
#define FAST_SCSI BIT4 /* ;10MB/SEC */
#define FAST_CLK BIT3 /* ;25 - 40 MHZ */
/*; Control Reg. 4(+34H) (rw) */
#define EATER_12NS 0
#define EATER_25NS BIT7
#define EATER_35NS BIT6
#define EATER_0NS (BIT7+BIT6)
#define REDUCED_POWER BIT5
#define CTRL4_RESERVED BIT4 /* must be 1 acc. to AM53C974.c */
#define NEGATE_REQACKDATA BIT2
#define NEGATE_REQACK BIT3
#define GLITCH_TO_NS(x) (((~x>>6 & 2) >> 1) | ((x>>6 & 1) << 1 ^ (x>>6 & 2)))
#define NS_TO_GLITCH(y) (((~y<<7) | ~((y<<6) ^ ((y<<5 & 1<<6) | ~0x40))) & 0xc0)
/*
;====================
; DMA Register
;====================
*/
/*; DMA Command Reg.(+40H) (rw) */
#define READ_DIRECTION BIT7
#define WRITE_DIRECTION 0
#define EN_DMA_INT BIT6
#define EN_PAGE_INT BIT5 /* page transfer interrupt enable */
#define MAP_TO_MDL BIT4
#define DIAGNOSTIC BIT2
#define DMA_IDLE_CMD 0
#define DMA_BLAST_CMD BIT0
#define DMA_ABORT_CMD BIT1
#define DMA_START_CMD (BIT1+BIT0)
/*; DMA Status Reg.(+54H) (r) */
#define PCI_MS_ABORT BIT6
#define BLAST_COMPLETE BIT5
#define SCSI_INTERRUPT BIT4
#define DMA_XFER_DONE BIT3
#define DMA_XFER_ABORT BIT2
#define DMA_XFER_ERROR BIT1
#define POWER_DOWN BIT0
/*; DMA SCSI Bus and Ctrl.(+70H) */
#define EN_INT_ON_PCI_ABORT BIT25
#define WRT_ERASE_DMA_STAT BIT24
#define PW_DOWN_CTRL BIT21
#define SCSI_BUSY BIT20
#define SCLK BIT19
#define SCAM BIT18
#define SCSI_LINES 0x0003ffff
/*
;==========================================================
; SCSI Chip register address offset
;==========================================================
;Registers are rw unless declared otherwise
*/
#define CtcReg_Low 0x00 /* r curr. transfer count */
#define CtcReg_Mid 0x04 /* r */
#define CtcReg_High 0x38 /* r */
#define ScsiFifo 0x08
#define ScsiCmd 0x0C
#define Scsi_Status 0x10 /* r */
#define INT_Status 0x14 /* r */
#define Sync_Period 0x18 /* w */
#define Sync_Offset 0x1C /* w */
#define Clk_Factor 0x24 /* w */
#define CtrlReg1 0x20
#define CtrlReg2 0x2C
#define CtrlReg3 0x30
#define CtrlReg4 0x34
#define DMA_Cmd 0x40
#define DMA_XferCnt 0x44 /* rw starting transfer count (32 bit) */
#define DMA_XferAddr 0x48 /* rw starting physical address (32 bit) */
#define DMA_Wk_ByteCntr 0x4C /* r working byte counter */
#define DMA_Wk_AddrCntr 0x50 /* r working address counter */
#define DMA_Status 0x54 /* r */
#define DMA_MDL_Addr 0x58 /* rw starting MDL address */
#define DMA_Wk_MDL_Cntr 0x5C /* r working MDL counter */
#define DMA_ScsiBusCtrl 0x70 /* rw SCSI Bus, PCI/DMA Ctrl */
#define StcReg_Low CtcReg_Low /* w start transfer count */
#define StcReg_Mid CtcReg_Mid /* w */
#define StcReg_High CtcReg_High /* w */
#define Scsi_Dest_ID Scsi_Status /* w */
#define Scsi_TimeOut INT_Status /* w */
#define Intern_State Sync_Period /* r */
#define Current_Fifo Sync_Offset /* r Curr. FIFO / int. state */
#define DC390_read8(address) \
(inb (pACB->IOPortBase + (address)))
#define DC390_read8_(address, base) \
(inb ((u16)(base) + (address)))
#define DC390_read16(address) \
(inw (pACB->IOPortBase + (address)))
#define DC390_read32(address) \
(inl (pACB->IOPortBase + (address)))
#define DC390_write8(address,value) \
outb ((value), pACB->IOPortBase + (address))
#define DC390_write8_(address,value,base) \
outb ((value), (u16)(base) + (address))
#define DC390_write16(address,value) \
outw ((value), pACB->IOPortBase + (address))
#define DC390_write32(address,value) \
outl ((value), pACB->IOPortBase + (address))
#endif /* _TMSCSIM_H */
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