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(struct Scsi_Host
*, struct scsi_cmnd
*);
19 static int ultrastor_abort(struct scsi_cmnd
*);
20 static int ultrastor_host_reset(struct scsi_cmnd
*);
21 static int ultrastor_biosparam(struct scsi_device
*, struct block_device
*,
25 #define ULTRASTOR_14F_MAX_SG 16
26 #define ULTRASTOR_24F_MAX_SG 33
28 #define ULTRASTOR_MAX_CMDS_PER_LUN 5
29 #define ULTRASTOR_MAX_CMDS 16
31 #define ULTRASTOR_24F_PORT 0xC80
34 #ifdef ULTRASTOR_PRIVATE
36 #define UD_ABORT 0x0001
37 #define UD_COMMAND 0x0002
38 #define UD_DETECT 0x0004
39 #define UD_INTERRUPT 0x0008
40 #define UD_RESET 0x0010
41 #define UD_MULTI_CMD 0x0020
42 #define UD_CSIR 0x0040
43 #define UD_ERROR 0x0080
45 /* #define PORT_OVERRIDE 0x330 */
47 /* Values for the PRODUCT_ID ports for the 14F */
48 #define US14F_PRODUCT_ID_0 0x56
49 #define US14F_PRODUCT_ID_1 0x40 /* NOTE: Only upper nibble is used */
51 #define US24F_PRODUCT_ID_0 0x56
52 #define US24F_PRODUCT_ID_1 0x63
53 #define US24F_PRODUCT_ID_2 0x02
55 /* Subversion values */
59 /* MSCP field values */
62 #define OP_HOST_ADAPTER 0x1
66 /* Date Transfer Direction */
72 /* Host Adapter command subcodes */
73 #define HA_CMD_INQUIRY 0x1
74 #define HA_CMD_SELF_DIAG 0x2
75 #define HA_CMD_READ_BUFF 0x3
76 #define HA_CMD_WRITE_BUFF 0x4
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