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/* fastlane.h: Defines and structures for the Fastlane SCSI driver.
*
* Copyright (C) 1996 Jesper Skov (jskov@cygnus.co.uk)
*/
#include "NCR53C9x.h"
#ifndef FASTLANE_H
#define FASTLANE_H
/* The controller registers can be found in the Z2 config area at these
* offsets:
*/
#define FASTLANE_ESP_ADDR 0x1000001
#define FASTLANE_DMA_ADDR 0x1000041
/* The Fastlane DMA interface */
struct fastlane_dma_registers {
volatile unsigned char cond_reg; /* DMA status (ro) [0x0000] */
#define ctrl_reg cond_reg /* DMA control (wo) [0x0000] */
unsigned char dmapad1[0x3f];
volatile unsigned char clear_strobe; /* DMA clear (wo) [0x0040] */
};
/* DMA status bits */
#define FASTLANE_DMA_MINT 0x80
#define FASTLANE_DMA_IACT 0x40
#define FASTLANE_DMA_CREQ 0x20
/* DMA control bits */
#define FASTLANE_DMA_FCODE 0xa0
#define FASTLANE_DMA_MASK 0xf3
#define FASTLANE_DMA_LED 0x10 /* HD led control 1 = on */
#define FASTLANE_DMA_WRITE 0x08 /* 1 = write */
#define FASTLANE_DMA_ENABLE 0x04 /* Enable DMA */
#define FASTLANE_DMA_EDI 0x02 /* Enable DMA IRQ ? */
#define FASTLANE_DMA_ESI 0x01 /* Enable SCSI IRQ */
extern int fastlane_esp_detect(struct SHT *);
extern int fastlane_esp_release(struct Scsi_Host *);
extern const char *esp_info(struct Scsi_Host *);
extern int esp_queue(Scsi_Cmnd *, void (*done)(Scsi_Cmnd *));
extern int esp_command(Scsi_Cmnd *);
extern int esp_abort(Scsi_Cmnd *);
extern int esp_reset(Scsi_Cmnd *, unsigned int);
extern int esp_proc_info(char *buffer, char **start, off_t offset, int length,
int hostno, int inout);
#define SCSI_FASTLANE { proc_name: "esp-fastlane", \
proc_info: esp_proc_info, \
name: "Fastlane SCSI", \
detect: fastlane_esp_detect, \
release: fastlane_esp_release, \
queuecommand: esp_queue, \
abort: esp_abort, \
reset: esp_reset, \
can_queue: 7, \
this_id: 7, \
sg_tablesize: SG_ALL, \
cmd_per_lun: 1, \
use_clustering: ENABLE_CLUSTERING }
#endif /* FASTLANE_H */
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