1 /* fastlane.h: Defines and structures for the Fastlane SCSI driver. 2 * 3 * Copyright (C) 1996 Jesper Skov (jskov@cygnus.co.uk) 4 */ 5 6 #include "NCR53C9x.h" 7 8 #ifndef FASTLANE_H 9 #define FASTLANE_H 10 11 /* The controller registers can be found in the Z2 config area at these 12 * offsets: 13 */ 14 #define FASTLANE_ESP_ADDR 0x1000001 15 #define FASTLANE_DMA_ADDR 0x1000041 16 17 18 /* The Fastlane DMA interface */ 19 struct fastlane_dma_registers { 20 volatile unsigned char cond_reg; /* DMA status (ro) [0x0000] */ 21 #define ctrl_reg cond_reg /* DMA control (wo) [0x0000] */ 22 unsigned char dmapad1[0x3f]; 23 volatile unsigned char clear_strobe; /* DMA clear (wo) [0x0040] */ 24 }; 25 26 27 /* DMA status bits */ 28 #define FASTLANE_DMA_MINT 0x80 29 #define FASTLANE_DMA_IACT 0x40 30 #define FASTLANE_DMA_CREQ 0x20 31 32 /* DMA control bits */ 33 #define FASTLANE_DMA_FCODE 0xa0 34 #define FASTLANE_DMA_MASK 0xf3 35 #define FASTLANE_DMA_LED 0x10 /* HD led control 1 = on */ 36 #define FASTLANE_DMA_WRITE 0x08 /* 1 = write */ 37 #define FASTLANE_DMA_ENABLE 0x04 /* Enable DMA */ 38 #define FASTLANE_DMA_EDI 0x02 /* Enable DMA IRQ ? */ 39 #define FASTLANE_DMA_ESI 0x01 /* Enable SCSI IRQ */ 40 41 extern int fastlane_esp_detect(struct SHT *); 42 extern int fastlane_esp_release(struct Scsi_Host *); 43 extern const char *esp_info(struct Scsi_Host *); 44 extern int esp_queue(Scsi_Cmnd *, void (*done)(Scsi_Cmnd *)); 45 extern int esp_command(Scsi_Cmnd *); 46 extern int esp_abort(Scsi_Cmnd *); 47 extern int esp_reset(Scsi_Cmnd *, unsigned int); 48 extern int esp_proc_info(char *buffer, char **start, off_t offset, int length, 49 int hostno, int inout); 50 51 #define SCSI_FASTLANE { proc_name: "esp-fastlane", \ 52 proc_info: esp_proc_info, \ 53 name: "Fastlane SCSI", \ 54 detect: fastlane_esp_detect, \ 55 release: fastlane_esp_release, \ 56 queuecommand: esp_queue, \ 57 abort: esp_abort, \ 58 reset: esp_reset, \ 59 can_queue: 7, \ 60 this_id: 7, \ 61 sg_tablesize: SG_ALL, \ 62 cmd_per_lun: 1, \ 63 use_clustering: ENABLE_CLUSTERING } 64 65 #endif /* FASTLANE_H */ 66