diff options
| -rw-r--r-- | configure.in | 4 | ||||
| -rw-r--r-- | opl/Makefile.am | 1 | ||||
| -rw-r--r-- | opl/opl.c | 6 | ||||
| -rw-r--r-- | opl/opl_obsd.c | 105 |
4 files changed, 116 insertions, 0 deletions
diff --git a/configure.in b/configure.in index 6f450d85..17ec9dc4 100644 --- a/configure.in +++ b/configure.in @@ -71,6 +71,10 @@ AC_SDL_MAIN_WORKAROUND([ AC_CHECK_HEADERS([linux/kd.h dev/isa/spkrio.h dev/speaker/speaker.h]) AC_CHECK_FUNCS(mmap sched_setaffinity) + + # OpenBSD I/O i386 library for I/O port access. + + AC_CHECK_LIB(i386, i386_iopl) ]) AC_CHECK_TOOL(WINDRES, windres, ) diff --git a/opl/Makefile.am b/opl/Makefile.am index d48b491b..9a757fdb 100644 --- a/opl/Makefile.am +++ b/opl/Makefile.am @@ -8,6 +8,7 @@ noinst_LIBRARIES=libopl.a libopl_a_SOURCES = \ opl_internal.h \ opl.c opl.h \ + opl_obsd.c opl_obsd.h \ opl_linux.c \ opl_sdl.c \ opl_queue.c opl_queue.h \ @@ -38,6 +38,9 @@ #ifdef HAVE_IOPERM extern opl_driver_t opl_linux_driver; #endif +#ifdef HAVE_LIBI386 +extern opl_driver_t opl_openbsd_driver; +#endif extern opl_driver_t opl_sdl_driver; static opl_driver_t *drivers[] = @@ -45,6 +48,9 @@ static opl_driver_t *drivers[] = #ifdef HAVE_IOPERM &opl_linux_driver, #endif +#ifdef HAVE_LIBI386 + &opl_openbsd_driver, +#endif &opl_sdl_driver, NULL }; diff --git a/opl/opl_obsd.c b/opl/opl_obsd.c new file mode 100644 index 00000000..a3a22ab8 --- /dev/null +++ b/opl/opl_obsd.c @@ -0,0 +1,105 @@ +// Emacs style mode select -*- C++ -*- +//----------------------------------------------------------------------------- +// +// Copyright(C) 2009 Simon Howard +// +// This program is free software; you can redistribute it and/or +// modify it under the terms of the GNU General Public License +// as published by the Free Software Foundation; either version 2 +// of the License, or (at your option) any later version. +// +// This program is distributed in the hope that it will be useful, +// but WITHOUT ANY WARRANTY; without even the implied warranty of +// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +// GNU General Public License for more details. +// +// You should have received a copy of the GNU General Public License +// along with this program; if not, write to the Free Software +// Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA +// 02111-1307, USA. +// +// DESCRIPTION: +// OPL OpenBSD interface (also NetBSD) +// +//----------------------------------------------------------------------------- + +#include "config.h" + +#ifdef HAVE_LIBI386 + +#include <stdio.h> +#include <string.h> +#include <errno.h> +#include <unistd.h> + +#include <sys/types.h> +#include <machine/sysarch.h> +#include <i386/pio.h> + +#include "opl.h" +#include "opl_internal.h" +#include "opl_timer.h" + +static unsigned int opl_port_base; + +static int OPL_OpenBSD_Init(unsigned int port_base) +{ + // Try to get permissions: + + if (i386_iopl(1) < 0) + { + fprintf(stderr, "Failed to get raise I/O privilege level: " + "check that you are running as root.\n"); + return 0; + } + + opl_port_base = port_base; + + // Start callback thread + + if (!OPL_Timer_StartThread()) + { + i386_iopl(0); + return 0; + } + + return 1; +} + +static void OPL_OpenBSD_Shutdown(void) +{ + // Stop callback thread + + OPL_Timer_StopThread(); + + // Release I/O port permissions: + + i386_iopl(0); +} + +static unsigned int OPL_OpenBSD_PortRead(opl_port_t port) +{ + return inb(opl_port_base + port); +} + +static void OPL_OpenBSD_PortWrite(opl_port_t port, unsigned int value) +{ + outb(opl_port_base + port, value); +} + +opl_driver_t opl_openbsd_driver = +{ + "OpenBSD", + OPL_OpenBSD_Init, + OPL_OpenBSD_Shutdown, + OPL_OpenBSD_PortRead, + OPL_OpenBSD_PortWrite, + OPL_Timer_SetCallback, + OPL_Timer_ClearCallbacks, + OPL_Timer_Lock, + OPL_Timer_Unlock, + OPL_Timer_SetPaused +}; + +#endif /* #ifdef HAVE_IOPERM */ + |