LXR linux/include/uapi/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 _UAPI_PARPORT_H_
   8#define _UAPI_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.  */
  37typedef 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 /* _UAPI_PARPORT_H_ */
  96