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authorIngo Molnar <mingo@elte.hu>2008-07-28 17:32:00 -0400
committerIngo Molnar <mingo@elte.hu>2008-07-28 17:32:00 -0400
commit9e3ee1c39c0cc71222f9980ccbf87fe072897eef (patch)
tree99462000e6f0d4f907cb2fc690f19d4d441ba0f3 /arch/sparc/include/asm/bpp.h
parente56b3bc7942982ac2589c942fb345e38bc7a341a (diff)
parentf934fb19ef34730263e6afc01e8ec27a8a71470f (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.h73
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
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+++ 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