2 * ultrastor.c (C) 1991 David B. Gentzel
3 * Low-level scsi driver for UltraStor 14F
4 * by David B. Gentzel, Whitfield Software Services, Carnegie, PA
5 * (gentzel@nova.enet.dec.com)
6 * scatter/gather added by Scott Taylor (n217cg@tamuts.tamu.edu)
7 * 24F support by John F. Carr (jfc@athena.mit.edu)
8 * John's work modified by Caleb Epstein (cae@jpmorgan.com) and
9 * Eric Youngdale (eric@tantalus.nrl.navy.mil).
10 * Thanks to UltraStor for providing the necessary documentation
16 static int ultrastor_detect(struct scsi_host_template *);
17 static const char *ultrastor_info(struct Scsi_Host * shpnt);
18 static int ultrastor_queuecommand(Scsi_Cmnd *, void (*done)(Scsi_Cmnd *));
19 static int ultrastor_abort(Scsi_Cmnd *);
20 static int ultrastor_host_reset(Scsi_Cmnd *);
21 static int ultrastor_biosparam(struct scsi_device *, struct block_device *, sector_t, int *);
24 #define ULTRASTOR_14F_MAX_SG 16
25 #define ULTRASTOR_24F_MAX_SG 33
27 #define ULTRASTOR_MAX_CMDS_PER_LUN 5
28 #define ULTRASTOR_MAX_CMDS 16
30 #define ULTRASTOR_24F_PORT 0xC80
33 #ifdef ULTRASTOR_PRIVATE
35 #define UD_ABORT 0x0001
36 #define UD_COMMAND 0x0002
37 #define UD_DETECT 0x0004
38 #define UD_INTERRUPT 0x0008
39 #define UD_RESET 0x0010
40 #define UD_MULTI_CMD 0x0020
41 #define UD_CSIR 0x0040
42 #define UD_ERROR 0x0080
44 /* #define PORT_OVERRIDE 0x330 */
46 /* Values for the PRODUCT_ID ports for the 14F */
47 #define US14F_PRODUCT_ID_0 0x56
48 #define US14F_PRODUCT_ID_1 0x40 /* NOTE: Only upper nibble is used */
50 #define US24F_PRODUCT_ID_0 0x56
51 #define US24F_PRODUCT_ID_1 0x63
52 #define US24F_PRODUCT_ID_2 0x02
54 /* Subversion values */
58 /* MSCP field values */
61 #define OP_HOST_ADAPTER 0x1
65 /* Date Transfer Direction */
71 /* Host Adapter command subcodes */
72 #define HA_CMD_INQUIRY 0x1
73 #define HA_CMD_SELF_DIAG 0x2
74 #define HA_CMD_READ_BUFF 0x3
75 #define HA_CMD_WRITE_BUFF 0x4