parport.h (3659B)
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_ */