fastlane.h
上传用户:lgb322
上传日期:2013-02-24
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文件大小:2k
- /* 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 */