drivers/usb/storage/shuttle_usbat.h

   1 /* Driver for SCM Microsystems USB-ATAPI cable
   2  * Header File
   3  *
   4  * $Id: shuttle_usbat.h,v 1.5 2000/09/17 14:44:52 groovyjava Exp $
   5  *
   6  * Current development and maintenance by:
   7  *   (c) 2000 Robert Baruch (autophile@dol.net)
   8  *   (c) 2004, 2005 Daniel Drake <dsd@gentoo.org>
   9  *
  10  * See shuttle_usbat.c for more explanation
  11  *
  12  * This program is free software; you can redistribute it and/or modify it
  13  * under the terms of the GNU General Public License as published by the
  14  * Free Software Foundation; either version 2, or (at your option) any
  15  * later version.
  16  *
  17  * This program is distributed in the hope that it will be useful, but
  18  * WITHOUT ANY WARRANTY; without even the implied warranty of
  19  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  20  * General Public License for more details.
  21  *
  22  * You should have received a copy of the GNU General Public License along
  23  * with this program; if not, write to the Free Software Foundation, Inc.,
  24  * 675 Mass Ave, Cambridge, MA 02139, USA.
  25  */
  26
  27 #ifndef _USB_SHUTTLE_USBAT_H
  28 #define _USB_SHUTTLE_USBAT_H
  29
  30 /* Supported device types */
  31 #define USBAT_DEV_HP8200        0x01
  32 #define USBAT_DEV_FLASH         0x02
  33
  34 #define USBAT_EPP_PORT          0x10
  35 #define USBAT_EPP_REGISTER      0x30
  36 #define USBAT_ATA               0x40
  37 #define USBAT_ISA               0x50
  38
  39 /* Commands (need to be logically OR'd with an access type */
  40 #define USBAT_CMD_READ_REG              0x00
  41 #define USBAT_CMD_WRITE_REG             0x01
  42 #define USBAT_CMD_READ_BLOCK    0x02
  43 #define USBAT_CMD_WRITE_BLOCK   0x03
  44 #define USBAT_CMD_COND_READ_BLOCK       0x04
  45 #define USBAT_CMD_COND_WRITE_BLOCK      0x05
  46 #define USBAT_CMD_WRITE_REGS    0x07
  47
  48 /* Commands (these don't need an access type) */
  49 #define USBAT_CMD_EXEC_CMD      0x80
  50 #define USBAT_CMD_SET_FEAT      0x81
  51 #define USBAT_CMD_UIO           0x82
  52
  53 /* Methods of accessing UIO register */
  54 #define USBAT_UIO_READ  1
  55 #define USBAT_UIO_WRITE 0
  56
  57 /* Qualifier bits */
  58 #define USBAT_QUAL_FCQ  0x20 // full compare
  59 #define USBAT_QUAL_ALQ  0x10 // auto load subcount
  60
  61 /* USBAT Flash Media status types */
  62 #define USBAT_FLASH_MEDIA_NONE  0
  63 #define USBAT_FLASH_MEDIA_CF    1
  64
  65 /* USBAT Flash Media change types */
  66 #define USBAT_FLASH_MEDIA_SAME  0
  67 #define USBAT_FLASH_MEDIA_CHANGED       1
  68
  69 /* USBAT ATA registers */
  70 #define USBAT_ATA_DATA      0x10  // read/write data (R/W)
  71 #define USBAT_ATA_FEATURES  0x11  // set features (W)
  72 #define USBAT_ATA_ERROR     0x11  // error (R)
  73 #define USBAT_ATA_SECCNT    0x12  // sector count (R/W)
  74 #define USBAT_ATA_SECNUM    0x13  // sector number (R/W)
  75 #define USBAT_ATA_LBA_ME    0x14  // cylinder low (R/W)
  76 #define USBAT_ATA_LBA_HI    0x15  // cylinder high (R/W)
  77 #define USBAT_ATA_DEVICE    0x16  // head/device selection (R/W)
  78 #define USBAT_ATA_STATUS    0x17  // device status (R)
  79 #define USBAT_ATA_CMD       0x17  // device command (W)
  80 #define USBAT_ATA_ALTSTATUS 0x0E  // status (no clear IRQ) (R)
  81
  82 /* USBAT User I/O Data registers */
  83 #define USBAT_UIO_EPAD          0x80 // Enable Peripheral Control Signals
  84 #define USBAT_UIO_CDT           0x40 // Card Detect (Read Only)
  85                                      // CDT = ACKD & !UI1 & !UI0
  86 #define USBAT_UIO_1             0x20 // I/O 1
  87 #define USBAT_UIO_0             0x10 // I/O 0
  88 #define USBAT_UIO_EPP_ATA       0x08 // 1=EPP mode, 0=ATA mode
  89 #define USBAT_UIO_UI1           0x04 // Input 1
  90 #define USBAT_UIO_UI0           0x02 // Input 0
  91 #define USBAT_UIO_INTR_ACK      0x01 // Interrupt (ATA & ISA)/Acknowledge (EPP)
  92
  93 /* USBAT User I/O Enable registers */
  94 #define USBAT_UIO_DRVRST        0x80 // Reset Peripheral
  95 #define USBAT_UIO_ACKD          0x40 // Enable Card Detect
  96 #define USBAT_UIO_OE1           0x20 // I/O 1 set=output/clr=input
  97                                      // If ACKD=1, set OE1 to 1 also.
  98 #define USBAT_UIO_OE0           0x10 // I/O 0 set=output/clr=input
  99 #define USBAT_UIO_ADPRST        0x01 // Reset SCM chip
 100
 101 /* USBAT Features */
 102 #define USBAT_FEAT_ETEN 0x80 // External trigger enable
 103 #define USBAT_FEAT_U1   0x08
 104 #define USBAT_FEAT_U0   0x04
 105 #define USBAT_FEAT_ET1  0x02
 106 #define USBAT_FEAT_ET2  0x01
 107
 108 extern int usbat_transport(struct scsi_cmnd *srb, struct us_data *us);
 109 extern int init_usbat(struct us_data *us);
 110
 111 struct 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