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/*=======================================================/
Header file for nsp_cs.c
By: YOKOTA Hiroshi <yokota@netlab.is.tsukuba.ac.jp>
Ver.1.0 : Cut unused lines.
Ver 0.1 : Initial version.
This software may be used and distributed according to the terms of
the GNU General Public License.
=========================================================*/
/* $Id: nsp_cs.h,v 1.27 2001/09/10 10:31:13 elca Exp $ */
#ifndef __nsp_cs__
#define __nsp_cs__
/* for debugging */
/*#define PCMCIA_DEBUG 9*/
/*
#define static
#define inline
*/
/************************************
* Some useful macros...
*/
#define Number(arr) ((int) (sizeof(arr) / sizeof(arr[0])))
#define BIT(x) (1<<(x))
#define MIN(a,b) ((a) > (b) ? (b) : (a))
/* SCSI initiator must be 7 */
#define SCSI_INITIATOR_ID 7
#define NSP_SELTIMEOUT 200
/* base register */
#define IRQCONTROL 0x00
# define IRQCONTROL_RESELECT_CLEAR BIT(0)
# define IRQCONTROL_PHASE_CHANGE_CLEAR BIT(1)
# define IRQCONTROL_TIMER_CLEAR BIT(2)
# define IRQCONTROL_FIFO_CLEAR BIT(3)
# define IRQCONTROL_ALLMASK 0xff
# define IRQCONTROL_ALLCLEAR 0x0f
# define IRQCONTROL_IRQDISABLE 0xf0
#define IRQSTATUS 0x00
# define IRQSTATUS_SCSI BIT(0)
# define IRQSTATUS_TIMER BIT(2)
# define IRQSTATUS_FIFO BIT(3)
# define IRQSTATUS_MASK 0x0f
#define IFSELECT 0x01
# define IF_IFSEL BIT(0)
# define IF_REGSEL BIT(2)
#define FIFOSTATUS 0x01
# define FIFOSTATUS_CHIP_REVISION 0x0f
# define FIFOSTATUS_CHIP_ID 0x70
# define FIFOSTATUS_FULL_EMPTY 0x80
#define INDEXREG 0x02
#define DATAREG 0x03
#define FIFODATA 0x04
#define FIFODATA1 0x05
#define FIFODATA2 0x06
#define FIFODATA3 0x07
/* indexed register */
#define EXTBUSCTRL 0x10
#define CLOCKDIV 0x11
# define CLOCK_40M 0x02
# define CLOCK_20M 0x01
#define TERMPWRCTRL 0x13
# define POWER_ON BIT(0)
#define SCSIIRQMODE 0x15
# define SCSI_PHASE_CHANGE_EI BIT(0)
# define RESELECT_EI BIT(4)
# define FIFO_IRQ_EI BIT(5)
# define SCSI_RESET_IRQ_EI BIT(6)
#define IRQPHASESENCE 0x16
# define LATCHED_MSG BIT(0)
# define LATCHED_IO BIT(1)
# define LATCHED_CD BIT(2)
# define LATCHED_BUS_FREE BIT(3)
# define PHASE_CHANGE_IRQ BIT(4)
# define RESELECT_IRQ BIT(5)
# define FIFO_IRQ BIT(6)
# define SCSI_RESET_IRQ BIT(7)
#define TIMERCOUNT 0x17
#define SCSIBUSCTRL 0x18
# define SCSI_SEL BIT(0)
# define SCSI_RST BIT(1)
# define SCSI_DATAOUT_ENB BIT(2)
# define SCSI_ATN BIT(3)
# define SCSI_ACK BIT(4)
# define SCSI_BSY BIT(5)
# define AUTODIRECTION BIT(6)
# define ACKENB BIT(7)
#define SCSIBUSMON 0x19
#define SETARBIT 0x1A
# define ARBIT_GO BIT(0)
# define ARBIT_FLAG_CLEAR BIT(1)
#define ARBITSTATUS 0x1A
/*# define ARBIT_GO BIT(0)*/
# define ARBIT_WIN BIT(1)
# define ARBIT_FAIL BIT(2)
# define RESELECT_FLAG BIT(3)
#define PARITYCTRL 0x1B /* W */
#define PARITYSTATUS 0x1B /* R */
#define COMMANDCTRL 0x1C /* W */
# define CLEAR_COMMAND_POINTER BIT(0)
# define AUTO_COMMAND_GO BIT(1)
#define RESELECTID 0x1C /* R */
#define COMMANDDATA 0x1D
#define POINTERCLR 0x1E /* W */
# define POINTER_CLEAR BIT(0)
# define ACK_COUNTER_CLEAR BIT(1)
# define REQ_COUNTER_CLEAR BIT(2)
# define HOST_COUNTER_CLEAR BIT(3)
# define READ_SOURCE 0x30
#define TRANSFERCOUNT 0x1E /* R */
#define TRANSFERMODE 0x20
# define MODE_MEM8 BIT(0)
# define MODE_MEM32 BIT(1)
# define MODE_ADR24 BIT(2)
# define MODE_ADR32 BIT(3)
# define MODE_IO8 BIT(4)
# define MODE_IO32 BIT(5)
# define TRANSFER_GO BIT(6)
# define BRAIND BIT(7)
#define SYNCREG 0x21
# define SYNCREG_OFFSET_MASK 0x0f
# define SYNCREG_PERIOD_MASK 0xf0
# define SYNCREG_PERIOD_SHIFT 4
#define SCSIDATALATCH 0x22
#define SCSIDATAIN 0x22
#define SCSIDATAWITHACK 0x23
#define SCAMCONTROL 0x24
#define SCAMSTATUS 0x24
#define SCAMDATA 0x25
#define OTHERCONTROL 0x26
# define TPL_ROM_WRITE_EN BIT(0)
# define TPWR_OUT BIT(1)
# define TPWR_SENSE BIT(2)
# define RA8_CONTROL BIT(3)
#define ACKWIDTH 0x27
#define CLRTESTPNT 0x28
#define ACKCNTLD 0x29
#define REQCNTLD 0x2A
#define HSTCNTLD 0x2B
#define CHECKSUM 0x2C
/*
* Input status bit definitions.
*/
#define S_ATN 0x80 /**/
#define S_SELECT 0x40 /**/
#define S_REQUEST 0x20 /* Request line from SCSI bus*/
#define S_ACK 0x10 /* Acknowlege line from SCSI bus*/
#define S_BUSY 0x08 /* Busy line from SCSI bus*/
#define S_CD 0x04 /* Command/Data line from SCSI bus*/
#define S_IO 0x02 /* Input/Output line from SCSI bus*/
#define S_MESSAGE 0x01 /* Message line from SCSI bus*/
/*
* Useful Bus Monitor status combinations.
*/
#define BUSMON_SEL S_SELECT
#define BUSMON_BSY S_BUSY
#define BUSMON_REQ S_REQUEST
#define BUSMON_IO S_IO
#define BUSMON_ACK S_ACK
#define BUSMON_BUS_FREE 0
#define BUSMON_COMMAND ( S_BUSY | S_CD | S_REQUEST )
#define BUSMON_MESSAGE_IN ( S_BUSY | S_MESSAGE | S_IO | S_CD | S_REQUEST )
#define BUSMON_MESSAGE_OUT ( S_BUSY | S_MESSAGE | S_CD | S_REQUEST )
#define BUSMON_DATA_IN ( S_BUSY | S_IO | S_REQUEST )
#define BUSMON_DATA_OUT ( S_BUSY | S_REQUEST )
#define BUSMON_STATUS ( S_BUSY | S_IO | S_CD | S_REQUEST )
#define BUSMON_RESELECT ( S_SELECT | S_IO )
#define BUSMON_PHASE_MASK ( S_SELECT | S_CD | S_MESSAGE | S_IO )
#define BUSPHASE_COMMAND ( BUSMON_COMMAND & BUSMON_PHASE_MASK )
#define BUSPHASE_MESSAGE_IN ( BUSMON_MESSAGE_IN & BUSMON_PHASE_MASK )
#define BUSPHASE_MESSAGE_OUT ( BUSMON_MESSAGE_OUT & BUSMON_PHASE_MASK )
#define BUSPHASE_DATA_IN ( BUSMON_DATA_IN & BUSMON_PHASE_MASK )
#define BUSPHASE_DATA_OUT ( BUSMON_DATA_OUT & BUSMON_PHASE_MASK )
#define BUSPHASE_STATUS ( BUSMON_STATUS & BUSMON_PHASE_MASK )
#define BUSPHASE_SELECT ( S_SELECT | S_IO )
/* synchronous transfer negotiation data */
typedef struct _sync_data {
unsigned int SyncNegotiation;
#define SYNC_NOT_YET 0
#define SYNC_OK 1
#define SYNC_NG 2
unsigned int SyncPeriod;
unsigned int SyncOffset;
unsigned char SyncRegister;
unsigned char AckWidth;
} sync_data;
typedef struct _nsp_data {
unsigned int BaseAddress;
unsigned int NumAddress;
unsigned int IrqNumber;
unsigned char ScsiClockDiv;
unsigned char TransferMode;
int TimerCount;
int SelectionTimeOut;
Scsi_Cmnd *CurrentSC;
int FifoCount;
#if (LINUX_VERSION_CODE < KERNEL_VERSION(2,4,0))
int Residual;
#define RESID data->Residual
#else
#define RESID SCpnt->resid
#endif
#define MSGBUF_SIZE 20
unsigned char MsgBuffer[MSGBUF_SIZE];
int MsgLen;
#define N_TARGET 8
#define N_LUN 8
sync_data Sync[N_TARGET][N_LUN];
} nsp_hw_data;
static void nsp_cs_release(u_long arg);
static int nsp_cs_event(event_t event, int priority, event_callback_args_t *args);
static dev_link_t *nsp_cs_attach(void);
static void nsp_cs_detach(dev_link_t *);
static unsigned int nsphw_start_selection(Scsi_Cmnd *SCpnt, nsp_hw_data *data);
static void nsp_start_timer(Scsi_Cmnd *SCpnt, nsp_hw_data *data, int time);
static int nsp_detect(Scsi_Host_Template * );
static int nsp_release(struct Scsi_Host *shpnt);
static const char * nsp_info(struct Scsi_Host *shpnt);
static int nsp_queuecommand(Scsi_Cmnd *, void (* done)(Scsi_Cmnd *));
static int nsp_abort(Scsi_Cmnd *);
static int nsp_reset(Scsi_Cmnd *, unsigned int);
static int nsp_eh_abort(Scsi_Cmnd * SCpnt);
static int nsp_eh_device_reset(Scsi_Cmnd *SCpnt);
static int nsp_eh_bus_reset(Scsi_Cmnd *SCpnt);
static int nsp_eh_host_reset(Scsi_Cmnd *SCpnt);
static int nsp_fifo_count(Scsi_Cmnd *SCpnt);
static void nsp_pio_read(Scsi_Cmnd *SCpnt, nsp_hw_data *data);
static int nsp_nexus(Scsi_Cmnd *SCpnt, nsp_hw_data *data);
#ifdef PCMCIA_DEBUG
static void show_command(Scsi_Cmnd *ptr);
static void show_phase(Scsi_Cmnd *SCpnt);
static void show_busphase(unsigned char stat);
static void show_message(nsp_hw_data *data);
#else
# define show_command(ptr) /* */
# define show_phase(SCpnt) /* */
# define show_busphase(stat) /* */
# define show_message(data) /* */
#endif
/*
* SCSI phase
*/
enum _scsi_phase {
PH_UNDETERMINED,
PH_ARBSTART,
PH_SELSTART,
PH_SELECTED,
PH_COMMAND,
PH_DATA,
PH_STATUS,
PH_MSG_IN,
PH_MSG_OUT,
PH_DISCONNECT,
PH_RESELECT
};
enum _data_in_out {
IO_UNKNOWN,
IO_IN,
IO_OUT
};
/* SCSI messaage */
#define MSG_COMMAND_COMPLETE 0x00
#define MSG_EXTENDED 0x01
#define MSG_NO_OPERATION 0x08
#define MSG_EXT_SDTR 0x01
#endif /*__nsp_cs__*/
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