patch-2.1.88 linux/drivers/acorn/scsi/acornscsi.h

• Lines: 379
• Date: Sun Dec 28 09:06:25 1997
• Orig file: v2.1.87/linux/drivers/acorn/scsi/acornscsi.h
• Orig date: Wed Dec 31 16:00:00 1969

diff -u --recursive --new-file v2.1.87/linux/drivers/acorn/scsi/acornscsi.h linux/drivers/acorn/scsi/acornscsi.h
@@ -0,0 +1,378 @@
+#ifndef ACORNSCSI_H
+#define ACORNSCSI_H
+
+#ifndef ASM
+extern int acornscsi_detect (Scsi_Host_Template *);
+extern int acornscsi_release (struct Scsi_Host *);
+extern const char *acornscsi_info (struct Scsi_Host *);
+extern int acornscsi_queuecmd (Scsi_Cmnd *, void (*done)(Scsi_Cmnd *));
+extern int acornscsi_abort (Scsi_Cmnd *);
+extern int acornscsi_reset (Scsi_Cmnd *, unsigned int);
+extern int acornscsi_proc_info (char *, char **, off_t, int, int, int);
+extern int acornscsi_biosparam (Disk *, kdev_t, int []);
+
+#ifndef NULL
+#define NULL 0
+#endif
+
+#ifndef CMD_PER_LUN
+#define CMD_PER_LUN 2
+#endif
+
+#ifndef CAN_QUEUE
+#define CAN_QUEUE 16
+#endif
+
+#ifndef PROC_SCSI_AKA30
+#include "linux/proc_fs.h"
+#define PROC_SCSI_AKA30 PROC_SCSI_EATA
+#endif
+
+#include <scsi/scsicam.h>
+
+#define ACORNSCSI_3 {							\
+proc_info:		acornscsi_proc_info,				\
+name:			"AcornSCSI",					\
+detect:			acornscsi_detect,				\
+release:		acornscsi_release,	/* Release */		\
+info:			acornscsi_info,					\
+queuecommand:		acornscsi_queuecmd,				\
+abort:			acornscsi_abort,				\
+reset:			acornscsi_reset,				\
+bios_param:		scsicam_bios_param,				\
+can_queue:		CAN_QUEUE,		/* can_queue */		\
+this_id:		7,			/* this id */		\
+sg_tablesize:		SG_ALL,			/* sg_tablesize */	\
+cmd_per_lun:		CMD_PER_LUN,		/* cmd_per_lun */	\
+unchecked_isa_dma:	0,			/* unchecked isa dma */	\
+use_clustering:		DISABLE_CLUSTERING				\
+	}
+
+#ifndef HOSTS_C
+
+/* SBIC registers */
+#define OWNID			0
+#define OWNID_FS1		(1<<7)
+#define OWNID_FS2		(1<<6)
+#define OWNID_EHP		(1<<4)
+#define OWNID_EAF		(1<<3)
+
+#define CTRL			1
+#define CTRL_DMAMODE		(1<<7)
+#define CTRL_DMADBAMODE		(1<<6)
+#define CTRL_DMABURST		(1<<5)
+#define CTRL_DMAPOLLED		0
+#define CTRL_HHP		(1<<4)
+#define CTRL_EDI		(1<<3)
+#define CTRL_IDI		(1<<2)
+#define CTRL_HA			(1<<1)
+#define CTRL_HSP		(1<<0)
+
+#define TIMEOUT			2
+#define TOTSECTS		3
+#define TOTHEADS		4
+#define TOTCYLH			5
+#define TOTCYLL			6
+#define LOGADDRH		7
+#define LOGADDRM2		8
+#define LOGADDRM1		9
+#define LOGADDRL		10
+#define SECTORNUM		11
+#define HEADNUM			12
+#define CYLH			13
+#define CYLL			14
+#define TARGETLUN		15
+#define TARGETLUN_TLV		(1<<7)
+#define TARGETLUN_DOK		(1<<6)
+
+#define CMNDPHASE		16
+#define SYNCHTRANSFER		17
+#define SYNCHTRANSFER_OF0	0x00
+#define SYNCHTRANSFER_OF1	0x01
+#define SYNCHTRANSFER_OF2	0x02
+#define SYNCHTRANSFER_OF3	0x03
+#define SYNCHTRANSFER_OF4	0x04
+#define SYNCHTRANSFER_OF5	0x05
+#define SYNCHTRANSFER_OF6	0x06
+#define SYNCHTRANSFER_OF7	0x07
+#define SYNCHTRANSFER_OF8	0x08
+#define SYNCHTRANSFER_OF9	0x09
+#define SYNCHTRANSFER_OF10	0x0A
+#define SYNCHTRANSFER_OF11	0x0B
+#define SYNCHTRANSFER_OF12	0x0C
+#define SYNCHTRANSFER_8DBA	0x00
+#define SYNCHTRANSFER_2DBA	0x20
+#define SYNCHTRANSFER_3DBA	0x30
+#define SYNCHTRANSFER_4DBA	0x40
+#define SYNCHTRANSFER_5DBA	0x50
+#define SYNCHTRANSFER_6DBA	0x60
+#define SYNCHTRANSFER_7DBA	0x70
+
+#define TRANSCNTH		18
+#define TRANSCNTM		19
+#define TRANSCNTL		20
+#define DESTID			21
+#define DESTID_SCC		(1<<7)
+#define DESTID_DPD		(1<<6)
+
+#define SOURCEID		22
+#define SOURCEID_ER		(1<<7)
+#define SOURCEID_ES		(1<<6)
+#define SOURCEID_DSP		(1<<5)
+#define SOURCEID_SIV		(1<<4)
+
+#define SSR			23
+#define CMND			24
+#define CMND_RESET		0x00
+#define CMND_ABORT		0x01
+#define CMND_ASSERTATN		0x02
+#define CMND_NEGATEACK		0x03
+#define CMND_DISCONNECT		0x04
+#define CMND_RESELECT		0x05
+#define CMND_SELWITHATN		0x06
+#define CMND_SELECT		0x07
+#define CMND_SELECTATNTRANSFER	0x08
+#define CMND_SELECTTRANSFER	0x09
+#define CMND_RESELECTRXDATA	0x0A
+#define CMND_RESELECTTXDATA	0x0B
+#define CMND_WAITFORSELRECV	0x0C
+#define CMND_SENDSTATCMD	0x0D
+#define CMND_SENDDISCONNECT	0x0E
+#define CMND_SETIDI		0x0F
+#define CMND_RECEIVECMD		0x10
+#define CMND_RECEIVEDTA		0x11
+#define CMND_RECEIVEMSG		0x12
+#define CMND_RECEIVEUSP		0x13
+#define CMND_SENDCMD		0x14
+#define CMND_SENDDATA		0x15
+#define CMND_SENDMSG		0x16
+#define CMND_SENDUSP		0x17
+#define CMND_TRANSLATEADDR	0x18
+#define CMND_XFERINFO		0x20
+#define CMND_SBT		(1<<7)
+
+#define DATA			25
+#define ASR			26
+#define ASR_INT			(1<<7)
+#define ASR_LCI			(1<<6)
+#define ASR_BSY			(1<<5)
+#define ASR_CIP			(1<<4)
+#define ASR_PE			(1<<1)
+#define ASR_DBR			(1<<0)
+
+/* DMAC registers */
+#define INIT			0x00
+#define INIT_8BIT		(1)
+
+#define CHANNEL			0x80
+#define CHANNEL_0		0x00
+#define CHANNEL_1		0x01
+#define CHANNEL_2		0x02
+#define CHANNEL_3		0x03
+
+#define TXCNTLO			0x01
+#define TXCNTHI			0x81
+#define TXADRLO			0x02
+#define TXADRMD			0x82
+#define TXADRHI			0x03
+
+#define DEVCON0			0x04
+#define DEVCON0_AKL		(1<<7)
+#define DEVCON0_RQL		(1<<6)
+#define DEVCON0_EXW		(1<<5)
+#define DEVCON0_ROT		(1<<4)
+#define DEVCON0_CMP		(1<<3)
+#define DEVCON0_DDMA		(1<<2)
+#define DEVCON0_AHLD		(1<<1)
+#define DEVCON0_MTM		(1<<0)
+
+#define DEVCON1			0x84
+#define DEVCON1_WEV		(1<<1)
+#define DEVCON1_BHLD		(1<<0)
+
+#define MODECON			0x05
+#define MODECON_WOED		0x01
+#define MODECON_VERIFY		0x00
+#define MODECON_READ		0x04
+#define MODECON_WRITE		0x08
+#define MODECON_AUTOINIT	0x10
+#define MODECON_ADDRDIR		0x20
+#define MODECON_DEMAND		0x00
+#define MODECON_SINGLE		0x40
+#define MODECON_BLOCK		0x80
+#define MODECON_CASCADE		0xC0
+
+#define STATUS			0x85
+#define STATUS_TC0		(1<<0)
+#define STATUS_RQ0		(1<<4)
+
+#define TEMPLO			0x06
+#define TEMPHI			0x86
+#define REQREG			0x07
+#define MASKREG			0x87
+#define MASKREG_M0		0x01
+#define MASKREG_M1		0x02
+#define MASKREG_M2		0x04
+#define MASKREG_M3		0x08
+
+/* miscellaneous internal variables */
+
+#define POD_SPACE(x)	((x) + 0xd0000)
+#define MASK_ON		(MASKREG_M3|MASKREG_M2|MASKREG_M1|MASKREG_M0)
+#define MASK_OFF	(MASKREG_M3|MASKREG_M2|MASKREG_M1)
+
+#define min(x,y) ((x) < (y) ? (x) : (y))
+#define max(x,y) ((x) < (y) ? (y) : (x))
+
+/*
+ * SCSI driver phases
+ */
+typedef enum {
+    PHASE_IDLE,					/* we're not planning on doing anything	 */
+    PHASE_CONNECTING,				/* connecting to a target		 */
+    PHASE_CONNECTED,				/* connected to a target		 */
+    PHASE_MSGOUT,				/* message out to device		 */
+    PHASE_RECONNECTED,				/* reconnected				 */
+    PHASE_COMMANDPAUSED,			/* command partly sent			 */
+    PHASE_COMMAND,				/* command all sent			 */
+    PHASE_DATAOUT,				/* data out to device			 */
+    PHASE_DATAIN,				/* data in from device			 */
+    PHASE_STATUSIN,				/* status in from device		 */
+    PHASE_MSGIN,				/* message in from device		 */
+    PHASE_DONE,					/* finished				 */
+    PHASE_ABORTED,				/* aborted				 */
+    PHASE_DISCONNECT,				/* disconnecting			 */
+} phase_t;
+
+/*
+ * After interrupt, what to do now
+ */
+typedef enum {
+    INTR_IDLE,					/* not expecting another IRQ		 */
+    INTR_NEXT_COMMAND,				/* start next command			 */
+    INTR_PROCESSING,				/* interrupt routine still processing	 */
+} intr_ret_t;
+
+/*
+ * DMA direction
+ */
+typedef enum {
+    DMA_OUT,					/* DMA from memory to chip		*/
+    DMA_IN					/* DMA from chip to memory		*/
+} dmadir_t;
+
+/*
+ * Synchronous transfer state
+ */
+typedef enum {					/* Synchronous transfer state		*/
+    SYNC_ASYNCHRONOUS,				/* don't negociate synchronous transfers*/
+    SYNC_NEGOCIATE,				/* start negociation			*/
+    SYNC_SENT_REQUEST,				/* sent SDTR message			*/
+    SYNC_COMPLETED,				/* received SDTR reply			*/
+} syncxfer_t;
+
+/*
+ * Command type
+ */
+typedef enum {					/* command type				*/
+    CMD_READ,					/* READ_6, READ_10, READ_12		*/
+    CMD_WRITE,					/* WRITE_6, WRITE_10, WRITE_12		*/
+    CMD_MISC,					/* Others				*/
+} cmdtype_t;
+
+/*
+ * Data phase direction
+ */
+typedef enum {					/* Data direction			*/
+    DATADIR_IN,					/* Data in phase expected		*/
+    DATADIR_OUT					/* Data out phase expected		*/
+} datadir_t;
+
+#include "queue.h"
+#include "msgqueue.h"
+
+/*
+ * AcornSCSI host specific data
+ */
+typedef struct acornscsi_hostdata {
+    /* miscellaneous */
+    struct Scsi_Host	*host;			/* host					*/
+    Scsi_Cmnd		*SCpnt;			/* currently processing command		*/
+    Scsi_Cmnd		*origSCpnt;		/* original connecting command		*/
+
+    /* driver information */
+    struct {
+	unsigned int	io_port;		/* base address of WD33C93		*/
+	unsigned char	irq;			/* interrupt				*/
+	phase_t		phase;			/* current phase			*/
+
+	struct {
+	    unsigned char	target;		/* reconnected target			*/
+	    unsigned char	lun;		/* reconnected lun			*/
+	    unsigned char	tag;		/* reconnected tag			*/
+	} reconnected;
+
+	Scsi_Pointer	SCp;			/* current commands data pointer	*/
+
+	MsgQueue_t	msgs;
+
+	unsigned short	last_message;		/* last message to be sent		*/
+	unsigned char	disconnectable:1;	/* this command can be disconnected	*/
+	unsigned char	interrupt:1;		/* interrupt active			*/
+    } scsi;
+
+    /* statistics information */
+    struct {
+	unsigned int	queues;
+	unsigned int	removes;
+	unsigned int	fins;
+	unsigned int	reads;
+	unsigned int	writes;
+	unsigned int	miscs;
+	unsigned int	disconnects;
+	unsigned int	aborts;
+	unsigned int	resets;
+    } stats;
+
+    /* queue handling */
+    struct {
+	Queue_t		issue;			/* issue queue				*/
+	Queue_t		disconnected;		/* disconnected command queue		*/
+    } queues;
+
+    /* per-device info */
+    struct {
+	unsigned char	sync_xfer;		/* synchronous transfer (SBIC value)	*/
+	syncxfer_t	sync_state;		/* sync xfer negociation state		*/
+	unsigned char	disconnect_ok:1;	/* device can disconnect		*/
+    } device[8];
+    unsigned char	busyluns[8];		/* array of bits indicating LUNs busy	*/
+
+    /* DMA info */
+    struct {
+	unsigned int	io_port;		/* base address of DMA controller	*/
+	unsigned int	io_intr_clear;		/* address of DMA interrupt clear	*/
+	unsigned int	free_addr;		/* next free address			*/
+	unsigned int	start_addr;		/* start address of current transfer	*/
+	dmadir_t	direction;		/* dma direction			*/
+	unsigned int	transferred;		/* number of bytes transferred		*/
+	unsigned int	xfer_start;		/* scheduled DMA transfer start		*/
+	unsigned int	xfer_length;		/* scheduled DMA transfer length	*/
+	char		*xfer_ptr;		/* pointer to area			*/
+	unsigned char	xfer_required:1;	/* set if we need to transfer something	*/
+	unsigned char	xfer_setup:1;		/* set if DMA is setup			*/
+    } dma;
+
+    /* card info */
+    struct {
+	unsigned int	io_intr;		/* base address of interrupt id reg	*/
+	unsigned int	io_page;		/* base address of page reg		*/
+	unsigned int	io_ram;			/* base address of RAM access		*/
+	unsigned char	page_reg;		/* current setting of page reg		*/
+    } card;
+} AS_Host;
+
+#endif /* ndef HOSTS_C */
+
+#endif /* ndef ASM */
+#endif /* ACORNSCSI_H */