diff options
author | Ingo Molnar <mingo@elte.hu> | 2008-07-28 17:32:00 -0400 |
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committer | Ingo Molnar <mingo@elte.hu> | 2008-07-28 17:32:00 -0400 |
commit | 9e3ee1c39c0cc71222f9980ccbf87fe072897eef (patch) | |
tree | 99462000e6f0d4f907cb2fc690f19d4d441ba0f3 /arch/sparc/include/asm/bpp.h | |
parent | e56b3bc7942982ac2589c942fb345e38bc7a341a (diff) | |
parent | f934fb19ef34730263e6afc01e8ec27a8a71470f (diff) |
Merge branch 'linus' into cpus4096
Conflicts:
kernel/stop_machine.c
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to 'arch/sparc/include/asm/bpp.h')
-rw-r--r-- | arch/sparc/include/asm/bpp.h | 73 |
1 files changed, 73 insertions, 0 deletions
diff --git a/arch/sparc/include/asm/bpp.h b/arch/sparc/include/asm/bpp.h new file mode 100644 index 000000000000..31f515e499a7 --- /dev/null +++ b/arch/sparc/include/asm/bpp.h | |||
@@ -0,0 +1,73 @@ | |||
1 | #ifndef _SPARC_BPP_H | ||
2 | #define _SPARC_BPP_H | ||
3 | |||
4 | /* | ||
5 | * Copyright (c) 1995 Picture Elements | ||
6 | * Stephen Williams | ||
7 | * Gus Baldauf | ||
8 | * | ||
9 | * Linux/SPARC port by Peter Zaitcev. | ||
10 | * Integration into SPARC tree by Tom Dyas. | ||
11 | */ | ||
12 | |||
13 | #include <linux/ioctl.h> | ||
14 | |||
15 | /* | ||
16 | * This is a driver that supports IEEE Std 1284-1994 communications | ||
17 | * with compliant or compatible devices. It will use whatever features | ||
18 | * the device supports, prefering those that are typically faster. | ||
19 | * | ||
20 | * When the device is opened, it is left in COMPATIBILITY mode, and | ||
21 | * writes work like any printer device. The driver only attempt to | ||
22 | * negotiate 1284 modes when needed so that plugs can be pulled, | ||
23 | * switch boxes switched, etc., without disrupting things. It will | ||
24 | * also leave the device in compatibility mode when closed. | ||
25 | */ | ||
26 | |||
27 | |||
28 | |||
29 | /* | ||
30 | * This driver also supplies ioctls to manually manipulate the | ||
31 | * pins. This is great for testing devices, or writing code to deal | ||
32 | * with bizzarro-mode of the ACME Special TurboThingy Plus. | ||
33 | * | ||
34 | * NOTE: These ioctl currently do not interact well with | ||
35 | * read/write. Caveat emptor. | ||
36 | * | ||
37 | * PUT_PINS allows us to assign the sense of all the pins, including | ||
38 | * the data pins if being driven by the host. The GET_PINS returns the | ||
39 | * pins that the peripheral drives, including data if appropriate. | ||
40 | */ | ||
41 | |||
42 | # define BPP_PUT_PINS _IOW('B', 1, int) | ||
43 | # define BPP_GET_PINS _IOR('B', 2, char) /* that's bogus - should've been _IO */ | ||
44 | # define BPP_PUT_DATA _IOW('B', 3, int) | ||
45 | # define BPP_GET_DATA _IOR('B', 4, char) /* ditto */ | ||
46 | |||
47 | /* | ||
48 | * Set the data bus to input mode. Disengage the data bin driver and | ||
49 | * be prepared to read values from the peripheral. If the arg is 0, | ||
50 | * then revert the bus to output mode. | ||
51 | */ | ||
52 | # define BPP_SET_INPUT _IOW('B', 5, int) | ||
53 | |||
54 | /* | ||
55 | * These bits apply to the PUT operation... | ||
56 | */ | ||
57 | # define BPP_PP_nStrobe 0x0001 | ||
58 | # define BPP_PP_nAutoFd 0x0002 | ||
59 | # define BPP_PP_nInit 0x0004 | ||
60 | # define BPP_PP_nSelectIn 0x0008 | ||
61 | |||
62 | /* | ||
63 | * These apply to the GET operation, which also reads the current value | ||
64 | * of the previously put values. A bit mask of these will be returned | ||
65 | * as a bit mask in the return code of the ioctl(). | ||
66 | */ | ||
67 | # define BPP_GP_nAck 0x0100 | ||
68 | # define BPP_GP_Busy 0x0200 | ||
69 | # define BPP_GP_PError 0x0400 | ||
70 | # define BPP_GP_Select 0x0800 | ||
71 | # define BPP_GP_nFault 0x1000 | ||
72 | |||
73 | #endif | ||