| David Howells | 607ca46 | 2012-10-13 10:46:48 +0100 | [diff] [blame] | 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. */ |
| 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 /* _UAPI_PARPORT_H_ */ |