tjh.dev
Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
kernel
os
linux
1/* Driver for SCM Microsystems USB-ATAPI cable
2 * Header File
3 *
4 * Current development and maintenance by:
5 * (c) 2000 Robert Baruch (autophile@dol.net)
6 * (c) 2004, 2005 Daniel Drake <dsd@gentoo.org>
7 *
8 * See shuttle_usbat.c for more explanation
9 *
10 * This program is free software; you can redistribute it and/or modify it
11 * under the terms of the GNU General Public License as published by the
12 * Free Software Foundation; either version 2, or (at your option) any
13 * later version.
14 *
15 * This program is distributed in the hope that it will be useful, but
16 * WITHOUT ANY WARRANTY; without even the implied warranty of
17 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
18 * General Public License for more details.
19 *
20 * You should have received a copy of the GNU General Public License along
21 * with this program; if not, write to the Free Software Foundation, Inc.,
22 * 675 Mass Ave, Cambridge, MA 02139, USA.
23 */
24
25#ifndef _USB_SHUTTLE_USBAT_H
26#define _USB_SHUTTLE_USBAT_H
27
28/* Supported device types */
29#define USBAT_DEV_HP8200 0x01
30#define USBAT_DEV_FLASH 0x02
31
32#define USBAT_EPP_PORT 0x10
33#define USBAT_EPP_REGISTER 0x30
34#define USBAT_ATA 0x40
35#define USBAT_ISA 0x50
36
37/* Commands (need to be logically OR'd with an access type */
38#define USBAT_CMD_READ_REG 0x00
39#define USBAT_CMD_WRITE_REG 0x01
40#define USBAT_CMD_READ_BLOCK 0x02
41#define USBAT_CMD_WRITE_BLOCK 0x03
42#define USBAT_CMD_COND_READ_BLOCK 0x04
43#define USBAT_CMD_COND_WRITE_BLOCK 0x05
44#define USBAT_CMD_WRITE_REGS 0x07
45
46/* Commands (these don't need an access type) */
47#define USBAT_CMD_EXEC_CMD 0x80
48#define USBAT_CMD_SET_FEAT 0x81
49#define USBAT_CMD_UIO 0x82
50
51/* Methods of accessing UIO register */
52#define USBAT_UIO_READ 1
53#define USBAT_UIO_WRITE 0
54
55/* Qualifier bits */
56#define USBAT_QUAL_FCQ 0x20 /* full compare */
57#define USBAT_QUAL_ALQ 0x10 /* auto load subcount */
58
59/* USBAT Flash Media status types */
60#define USBAT_FLASH_MEDIA_NONE 0
61#define USBAT_FLASH_MEDIA_CF 1
62
63/* USBAT Flash Media change types */
64#define USBAT_FLASH_MEDIA_SAME 0
65#define USBAT_FLASH_MEDIA_CHANGED 1
66
67/* USBAT ATA registers */
68#define USBAT_ATA_DATA 0x10 /* read/write data (R/W) */
69#define USBAT_ATA_FEATURES 0x11 /* set features (W) */
70#define USBAT_ATA_ERROR 0x11 /* error (R) */
71#define USBAT_ATA_SECCNT 0x12 /* sector count (R/W) */
72#define USBAT_ATA_SECNUM 0x13 /* sector number (R/W) */
73#define USBAT_ATA_LBA_ME 0x14 /* cylinder low (R/W) */
74#define USBAT_ATA_LBA_HI 0x15 /* cylinder high (R/W) */
75#define USBAT_ATA_DEVICE 0x16 /* head/device selection (R/W) */
76#define USBAT_ATA_STATUS 0x17 /* device status (R) */
77#define USBAT_ATA_CMD 0x17 /* device command (W) */
78#define USBAT_ATA_ALTSTATUS 0x0E /* status (no clear IRQ) (R) */
79
80/* USBAT User I/O Data registers */
81#define USBAT_UIO_EPAD 0x80 /* Enable Peripheral Control Signals */
82#define USBAT_UIO_CDT 0x40 /* Card Detect (Read Only) */
83 /* CDT = ACKD & !UI1 & !UI0 */
84#define USBAT_UIO_1 0x20 /* I/O 1 */
85#define USBAT_UIO_0 0x10 /* I/O 0 */
86#define USBAT_UIO_EPP_ATA 0x08 /* 1=EPP mode, 0=ATA mode */
87#define USBAT_UIO_UI1 0x04 /* Input 1 */
88#define USBAT_UIO_UI0 0x02 /* Input 0 */
89#define USBAT_UIO_INTR_ACK 0x01 /* Interrupt (ATA/ISA)/Acknowledge (EPP) */
90
91/* USBAT User I/O Enable registers */
92#define USBAT_UIO_DRVRST 0x80 /* Reset Peripheral */
93#define USBAT_UIO_ACKD 0x40 /* Enable Card Detect */
94#define USBAT_UIO_OE1 0x20 /* I/O 1 set=output/clr=input */
95 /* If ACKD=1, set OE1 to 1 also. */
96#define USBAT_UIO_OE0 0x10 /* I/O 0 set=output/clr=input */
97#define USBAT_UIO_ADPRST 0x01 /* Reset SCM chip */
98
99/* USBAT Features */
100#define USBAT_FEAT_ETEN 0x80 /* External trigger enable */
101#define USBAT_FEAT_U1 0x08
102#define USBAT_FEAT_U0 0x04
103#define USBAT_FEAT_ET1 0x02
104#define USBAT_FEAT_ET2 0x01
105
106extern int usbat_transport(struct scsi_cmnd *srb, struct us_data *us);
107extern int init_usbat_cd(struct us_data *us);
108extern int init_usbat_flash(struct us_data *us);
109extern int init_usbat_probe(struct us_data *us);
110
111struct usbat_info {
112 int devicetype;
113
114 /* Used for Flash readers only */
115 unsigned long sectors; /* total sector count */
116 unsigned long ssize; /* sector size in bytes */
117
118 unsigned char sense_key;
119 unsigned long sense_asc; /* additional sense code */
120 unsigned long sense_ascq; /* additional sense code qualifier */
121};
122
123#endif