drivers/usb/storage/shuttle_usbat.h

   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
 106 extern int usbat_transport(struct scsi_cmnd *srb, struct us_data *us);
 107 extern int init_usbat_cd(struct us_data *us);
 108 extern int init_usbat_flash(struct us_data *us);
 109 extern int init_usbat_probe(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