| /* |
| * Any part of this program may be used in documents licensed under |
| * the GNU Free Documentation License, Version 1.1 or any later version |
| * published by the Free Software Foundation. |
| */ |
| |
| #ifndef _PARPORT_H_ |
| #define _PARPORT_H_ |
| |
| /* Start off with user-visible constants */ |
| |
| /* Maximum of 16 ports per machine */ |
| #define PARPORT_MAX 16 |
| |
| /* Magic numbers */ |
| #define PARPORT_IRQ_NONE -1 |
| #define PARPORT_DMA_NONE -1 |
| #define PARPORT_IRQ_AUTO -2 |
| #define PARPORT_DMA_AUTO -2 |
| #define PARPORT_DMA_NOFIFO -3 |
| #define PARPORT_DISABLE -2 |
| #define PARPORT_IRQ_PROBEONLY -3 |
| #define PARPORT_IOHI_AUTO -1 |
| |
| #define PARPORT_CONTROL_STROBE 0x1 |
| #define PARPORT_CONTROL_AUTOFD 0x2 |
| #define PARPORT_CONTROL_INIT 0x4 |
| #define PARPORT_CONTROL_SELECT 0x8 |
| |
| #define PARPORT_STATUS_ERROR 0x8 |
| #define PARPORT_STATUS_SELECT 0x10 |
| #define PARPORT_STATUS_PAPEROUT 0x20 |
| #define PARPORT_STATUS_ACK 0x40 |
| #define PARPORT_STATUS_BUSY 0x80 |
| |
| /* Type classes for Plug-and-Play probe. */ |
| typedef enum { |
| PARPORT_CLASS_LEGACY = 0, /* Non-IEEE1284 device */ |
| PARPORT_CLASS_PRINTER, |
| PARPORT_CLASS_MODEM, |
| PARPORT_CLASS_NET, |
| PARPORT_CLASS_HDC, /* Hard disk controller */ |
| PARPORT_CLASS_PCMCIA, |
| PARPORT_CLASS_MEDIA, /* Multimedia device */ |
| PARPORT_CLASS_FDC, /* Floppy disk controller */ |
| PARPORT_CLASS_PORTS, |
| PARPORT_CLASS_SCANNER, |
| PARPORT_CLASS_DIGCAM, |
| PARPORT_CLASS_OTHER, /* Anything else */ |
| PARPORT_CLASS_UNSPEC, /* No CLS field in ID */ |
| PARPORT_CLASS_SCSIADAPTER |
| } parport_device_class; |
| |
| /* The "modes" entry in parport is a bit field representing the |
| capabilities of the hardware. */ |
| #define PARPORT_MODE_PCSPP (1<<0) /* IBM PC registers available. */ |
| #define PARPORT_MODE_TRISTATE (1<<1) /* Can tristate. */ |
| #define PARPORT_MODE_EPP (1<<2) /* Hardware EPP. */ |
| #define PARPORT_MODE_ECP (1<<3) /* Hardware ECP. */ |
| #define PARPORT_MODE_COMPAT (1<<4) /* Hardware 'printer protocol'. */ |
| #define PARPORT_MODE_DMA (1<<5) /* Hardware can DMA. */ |
| #define PARPORT_MODE_SAFEININT (1<<6) /* SPP registers accessible in IRQ. */ |
| |
| /* IEEE1284 modes: |
| Nibble mode, byte mode, ECP, ECPRLE and EPP are their own |
| 'extensibility request' values. Others are special. |
| 'Real' ECP modes must have the IEEE1284_MODE_ECP bit set. */ |
| #define IEEE1284_MODE_NIBBLE 0 |
| #define IEEE1284_MODE_BYTE (1<<0) |
| #define IEEE1284_MODE_COMPAT (1<<8) |
| #define IEEE1284_MODE_BECP (1<<9) /* Bounded ECP mode */ |
| #define IEEE1284_MODE_ECP (1<<4) |
| #define IEEE1284_MODE_ECPRLE (IEEE1284_MODE_ECP | (1<<5)) |
| #define IEEE1284_MODE_ECPSWE (1<<10) /* Software-emulated */ |
| #define IEEE1284_MODE_EPP (1<<6) |
| #define IEEE1284_MODE_EPPSL (1<<11) /* EPP 1.7 */ |
| #define IEEE1284_MODE_EPPSWE (1<<12) /* Software-emulated */ |
| #define IEEE1284_DEVICEID (1<<2) /* This is a flag */ |
| #define IEEE1284_EXT_LINK (1<<14) /* This flag causes the |
| * extensibility link to |
| * be requested, using |
| * bits 0-6. */ |
| |
| /* For the benefit of parport_read/write, you can use these with |
| * parport_negotiate to use address operations. They have no effect |
| * other than to make parport_read/write use address transfers. */ |
| #define IEEE1284_ADDR (1<<13) /* This is a flag */ |
| #define IEEE1284_DATA 0 /* So is this */ |
| |
| /* Flags for block transfer operations. */ |
| #define PARPORT_EPP_FAST (1<<0) /* Unreliable counts. */ |
| #define PARPORT_W91284PIC (1<<1) /* have a Warp9 w91284pic in the device */ |
| |
| /* The rest is for the kernel only */ |
| #endif /* _PARPORT_H_ */ |
