release/src-rt-6.x.4708/toolchains/hndtools-arm-linux-2.6.36-uclibc-4.5.3/arm-brcm-linux-uclibcgnueabi/sysroot/usr/include/linux/parport.h

   1 /*
   2  * Any part of this program may be used in documents licensed under
   3  * the GNU Free Documentation License, Version 1.1 or any later version
   4  * published by the Free Software Foundation.
   5  */
   6
   7 #ifndef _PARPORT_H_
   8 #define _PARPORT_H_
   9
  10 /* Start off with user-visible constants */
  11
  12 /* Maximum of 16 ports per machine */
  13 #define PARPORT_MAX  16
  14
  15 /* Magic numbers */
  16 #define PARPORT_IRQ_NONE  -1
  17 #define PARPORT_DMA_NONE  -1
  18 #define PARPORT_IRQ_AUTO  -2
  19 #define PARPORT_DMA_AUTO  -2
  20 #define PARPORT_DMA_NOFIFO -3
  21 #define PARPORT_DISABLE   -2
  22 #define PARPORT_IRQ_PROBEONLY -3
  23 #define PARPORT_IOHI_AUTO -1
  24
  25 #define PARPORT_CONTROL_STROBE    0x1
  26 #define PARPORT_CONTROL_AUTOFD    0x2
  27 #define PARPORT_CONTROL_INIT      0x4
  28 #define PARPORT_CONTROL_SELECT    0x8
  29
  30 #define PARPORT_STATUS_ERROR      0x8
  31 #define PARPORT_STATUS_SELECT     0x10
  32 #define PARPORT_STATUS_PAPEROUT   0x20
  33 #define PARPORT_STATUS_ACK        0x40
  34 #define PARPORT_STATUS_BUSY       0x80
  35
  36 /* Type classes for Plug-and-Play probe.  */
  37 typedef enum {
  38         PARPORT_CLASS_LEGACY = 0,       /* Non-IEEE1284 device */
  39         PARPORT_CLASS_PRINTER,
  40         PARPORT_CLASS_MODEM,
  41         PARPORT_CLASS_NET,
  42         PARPORT_CLASS_HDC,              /* Hard disk controller */
  43         PARPORT_CLASS_PCMCIA,
  44         PARPORT_CLASS_MEDIA,            /* Multimedia device */
  45         PARPORT_CLASS_FDC,              /* Floppy disk controller */
  46         PARPORT_CLASS_PORTS,
  47         PARPORT_CLASS_SCANNER,
  48         PARPORT_CLASS_DIGCAM,
  49         PARPORT_CLASS_OTHER,            /* Anything else */
  50         PARPORT_CLASS_UNSPEC,           /* No CLS field in ID */
  51         PARPORT_CLASS_SCSIADAPTER
  52 } parport_device_class;
  53
  54 /* The "modes" entry in parport is a bit field representing the
  55    capabilities of the hardware. */
  56 #define PARPORT_MODE_PCSPP      (1<<0) /* IBM PC registers available. */
  57 #define PARPORT_MODE_TRISTATE   (1<<1) /* Can tristate. */
  58 #define PARPORT_MODE_EPP        (1<<2) /* Hardware EPP. */
  59 #define PARPORT_MODE_ECP        (1<<3) /* Hardware ECP. */
  60 #define PARPORT_MODE_COMPAT     (1<<4) /* Hardware 'printer protocol'. */
  61 #define PARPORT_MODE_DMA        (1<<5) /* Hardware can DMA. */
  62 #define PARPORT_MODE_SAFEININT  (1<<6) /* SPP registers accessible in IRQ. */
  63
  64 /* IEEE1284 modes:
  65    Nibble mode, byte mode, ECP, ECPRLE and EPP are their own
  66    'extensibility request' values.  Others are special.
  67    'Real' ECP modes must have the IEEE1284_MODE_ECP bit set.  */
  68 #define IEEE1284_MODE_NIBBLE             0
  69 #define IEEE1284_MODE_BYTE              (1<<0)
  70 #define IEEE1284_MODE_COMPAT            (1<<8)
  71 #define IEEE1284_MODE_BECP              (1<<9) /* Bounded ECP mode */
  72 #define IEEE1284_MODE_ECP               (1<<4)
  73 #define IEEE1284_MODE_ECPRLE            (IEEE1284_MODE_ECP | (1<<5))
  74 #define IEEE1284_MODE_ECPSWE            (1<<10) /* Software-emulated */
  75 #define IEEE1284_MODE_EPP               (1<<6)
  76 #define IEEE1284_MODE_EPPSL             (1<<11) /* EPP 1.7 */
  77 #define IEEE1284_MODE_EPPSWE            (1<<12) /* Software-emulated */
  78 #define IEEE1284_DEVICEID               (1<<2)  /* This is a flag */
  79 #define IEEE1284_EXT_LINK               (1<<14) /* This flag causes the
  80                                                  * extensibility link to
  81                                                  * be requested, using
  82                                                  * bits 0-6. */
  83
  84 /* For the benefit of parport_read/write, you can use these with
  85  * parport_negotiate to use address operations.  They have no effect
  86  * other than to make parport_read/write use address transfers. */
  87 #define IEEE1284_ADDR                   (1<<13) /* This is a flag */
  88 #define IEEE1284_DATA                    0      /* So is this */
  89
  90 /* Flags for block transfer operations. */
  91 #define PARPORT_EPP_FAST                (1<<0) /* Unreliable counts. */
  92 #define PARPORT_W91284PIC               (1<<1) /* have a Warp9 w91284pic in the device */
  93
  94 /* The rest is for the kernel only */
  95 #endif /* _PARPORT_H_ */