Mercurial > sdl-ios-xcode
annotate src/thread/beos/SDL_syssem.c @ 1302:94643e9bad18
Date: Sat, 14 Jan 2006 15:16:01 -0500
From: Andrew Fuller
Subject: [SDL] [PATCH] ML-8866 PS2->USB converter
This converter seems to go by several names -- Super Dual Box, Dual
USB Joypad, and who knows what else. Also branded differently with
different colour cases, etc. But it seems to all be the same
internals. It is a common converter used for StepMania, with several
posts Googleable trying to make it work in Linux. I got mine
yesterday and wanted to play stepmania, so I went ahead and made a
crude patch for libsdl to split this baby into two logical joysticks.
A couple notes about the patch:
This patch works well for two dance mats hooked up and playing
stepmania, however the mapping of the other buttons may be off. I
have no joystick which uses all the buttons the converter reports, so
I have no way of testing them.
The name I used 0925:8866 which is the USB ID, and what SDLjoytest-GL
reported is the name, even though lsusb shows Wisegroup, Ltd MP-8866
Dual USB Joypad, and the existing virtual joystick mapping uses the
Wisegroup... name. Not sure why the discrepency.
I'm not subscribed to this mailing list, so please CC me on any
comments to this.
-Andrew
| author | Sam Lantinga <slouken@libsdl.org> |
|---|---|
| date | Tue, 31 Jan 2006 14:59:43 +0000 |
| parents | ab0154afe938 |
| children | c9b51268668f |
| rev | line source |
|---|---|
| 0 | 1 /* |
| 2 SDL - Simple DirectMedia Layer | |
|
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Updated copyright information for 2004 (Happy New Year!)
Sam Lantinga <slouken@libsdl.org>
parents:
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3 Copyright (C) 1997-2004 Sam Lantinga |
| 0 | 4 |
| 5 This library is free software; you can redistribute it and/or | |
| 6 modify it under the terms of the GNU Library General Public | |
| 7 License as published by the Free Software Foundation; either | |
| 8 version 2 of the License, or (at your option) any later version. | |
| 9 | |
| 10 This library is distributed in the hope that it will be useful, | |
| 11 but WITHOUT ANY WARRANTY; without even the implied warranty of | |
| 12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
| 13 Library General Public License for more details. | |
| 14 | |
| 15 You should have received a copy of the GNU Library General Public | |
| 16 License along with this library; if not, write to the Free | |
| 17 Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA | |
| 18 | |
| 19 Sam Lantinga | |
|
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Updated the source with the correct e-mail address
Sam Lantinga <slouken@libsdl.org>
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20 slouken@libsdl.org |
| 0 | 21 */ |
| 22 | |
| 23 #ifdef SAVE_RCSID | |
| 24 static char rcsid = | |
| 25 "@(#) $Id$"; | |
| 26 #endif | |
| 27 | |
| 28 /* Semaphores in the BeOS environment */ | |
| 29 | |
| 30 #include <be/kernel/OS.h> | |
| 31 | |
| 32 #include "SDL_error.h" | |
| 33 #include "SDL_thread.h" | |
| 34 | |
| 35 | |
| 36 struct SDL_semaphore { | |
| 37 sem_id id; | |
| 38 }; | |
| 39 | |
| 40 /* Create a counting semaphore */ | |
| 41 SDL_sem *SDL_CreateSemaphore(Uint32 initial_value) | |
| 42 { | |
| 43 SDL_sem *sem; | |
| 44 | |
| 45 sem = (SDL_sem *)malloc(sizeof(*sem)); | |
| 46 if ( sem ) { | |
| 47 sem->id = create_sem(initial_value, "SDL semaphore"); | |
| 48 if ( sem->id < B_NO_ERROR ) { | |
| 49 SDL_SetError("create_sem() failed"); | |
| 50 free(sem); | |
| 51 sem = NULL; | |
| 52 } | |
| 53 } else { | |
| 54 SDL_OutOfMemory(); | |
| 55 } | |
| 56 return(sem); | |
| 57 } | |
| 58 | |
| 59 /* Free the semaphore */ | |
| 60 void SDL_DestroySemaphore(SDL_sem *sem) | |
| 61 { | |
| 62 if ( sem ) { | |
| 63 if ( sem->id >= B_NO_ERROR ) { | |
| 64 delete_sem(sem->id); | |
| 65 } | |
| 66 free(sem); | |
| 67 } | |
| 68 } | |
| 69 | |
| 70 int SDL_SemWaitTimeout(SDL_sem *sem, Uint32 timeout) | |
| 71 { | |
| 72 int32 val; | |
| 73 int retval; | |
| 74 | |
| 75 if ( ! sem ) { | |
| 76 SDL_SetError("Passed a NULL semaphore"); | |
| 77 return -1; | |
| 78 } | |
| 79 | |
| 80 tryagain: | |
| 81 if ( timeout == SDL_MUTEX_MAXWAIT ) { | |
| 82 val = acquire_sem(sem->id); | |
| 83 } else { | |
| 84 timeout *= 1000; /* BeOS uses a timeout in microseconds */ | |
| 85 val = acquire_sem_etc(sem->id, 1, B_RELATIVE_TIMEOUT, timeout); | |
| 86 } | |
| 87 switch (val) { | |
| 88 case B_INTERRUPTED: | |
| 89 goto tryagain; | |
| 90 case B_NO_ERROR: | |
| 91 retval = 0; | |
| 92 break; | |
|
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Date: Sat, 17 Sep 2005 13:38:49 +0200
Ryan C. Gordon <icculus@icculus.org>
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93 case B_TIMED_OUT: |
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ab0154afe938
Date: Sat, 17 Sep 2005 13:38:49 +0200
Ryan C. Gordon <icculus@icculus.org>
parents:
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94 retval = SDL_MUTEX_TIMEDOUT; |
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ab0154afe938
Date: Sat, 17 Sep 2005 13:38:49 +0200
Ryan C. Gordon <icculus@icculus.org>
parents:
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95 break; |
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ab0154afe938
Date: Sat, 17 Sep 2005 13:38:49 +0200
Ryan C. Gordon <icculus@icculus.org>
parents:
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96 case B_WOULD_BLOCK: |
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ab0154afe938
Date: Sat, 17 Sep 2005 13:38:49 +0200
Ryan C. Gordon <icculus@icculus.org>
parents:
769
diff
changeset
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97 retval = SDL_MUTEX_TIMEDOUT; |
|
ab0154afe938
Date: Sat, 17 Sep 2005 13:38:49 +0200
Ryan C. Gordon <icculus@icculus.org>
parents:
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98 break; |
| 0 | 99 default: |
| 100 SDL_SetError("acquire_sem() failed"); | |
| 101 retval = -1; | |
| 102 break; | |
| 103 } | |
| 104 | |
| 105 return retval; | |
| 106 } | |
| 107 | |
| 108 int SDL_SemTryWait(SDL_sem *sem) | |
| 109 { | |
| 110 return SDL_SemWaitTimeout(sem, 0); | |
| 111 } | |
| 112 | |
| 113 int SDL_SemWait(SDL_sem *sem) | |
| 114 { | |
| 115 return SDL_SemWaitTimeout(sem, SDL_MUTEX_MAXWAIT); | |
| 116 } | |
| 117 | |
| 118 /* Returns the current count of the semaphore */ | |
| 119 Uint32 SDL_SemValue(SDL_sem *sem) | |
| 120 { | |
| 121 int32 count; | |
| 122 Uint32 value; | |
| 123 | |
| 124 value = 0; | |
| 125 if ( sem ) { | |
| 126 get_sem_count(sem->id, &count); | |
| 127 if ( count > 0 ) { | |
| 128 value = (Uint32)count; | |
| 129 } | |
| 130 } | |
| 131 return value; | |
| 132 } | |
| 133 | |
| 134 /* Atomically increases the semaphore's count (not blocking) */ | |
| 135 int SDL_SemPost(SDL_sem *sem) | |
| 136 { | |
| 137 if ( ! sem ) { | |
| 138 SDL_SetError("Passed a NULL semaphore"); | |
| 139 return -1; | |
| 140 } | |
| 141 | |
| 142 if ( release_sem(sem->id) != B_NO_ERROR ) { | |
| 143 SDL_SetError("release_sem() failed"); | |
| 144 return -1; | |
| 145 } | |
| 146 return 0; | |
| 147 } |