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 | #define PARPORT_EPP_FAST_32 PARPORT_EPP_FAST /* 32-bit EPP transfers */ |
94 | #define PARPORT_EPP_FAST_16 (1<<2) /* 16-bit EPP transfers */ |
95 | #define PARPORT_EPP_FAST_8 (1<<3) /* 8-bit EPP transfers */ |
96 | |
97 | /* The rest is for the kernel only */ |
98 | #endif /* _UAPI_PARPORT_H_ */ |
99 | |