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authorJoel Sherrill <joel.sherrill@OARcorp.com>2008-04-17 23:09:42 +0000
committerJoel Sherrill <joel.sherrill@OARcorp.com>2008-04-17 23:09:42 +0000
commitf9af0c1565031ee762251785299b226f32f43bd4 (patch)
tree43e41c61eb5fc0330a20964dcf7ed5f1a0f6a3c6 /c/src/lib/libbsp/arm/nds/libnds/source/common/interruptDispatcher.S
parent2008-04-17 Joel Sherrill <joel.sherrill@oarcorp.com> (diff)
downloadrtems-f9af0c1565031ee762251785299b226f32f43bd4.tar.bz2
2008-04-17 Joel Sherrill <joel.sherrill@OARcorp.com>
* Makefile.am: Move .s files to .S * dswifi/common/source/spinlock.S, libfat/source/disc_io/io_dldi.S, libfat/source/disc_io/io_scsd_s.S, libnds/source/arm9/COS.S, libnds/source/arm9/SIN.S, libnds/source/arm9/TAN.S, libnds/source/arm9/dcache.S, libnds/source/arm9/default_font.S, libnds/source/arm9/icache.S, libnds/source/common/biosCalls.S, libnds/source/common/interruptDispatcher.S: New files. * dswifi/common/source/spinlock.s, libfat/source/disc_io/io_dldi.s, libfat/source/disc_io/io_scsd_s.s, libnds/source/arm9/COS.s, libnds/source/arm9/SIN.s, libnds/source/arm9/TAN.s, libnds/source/arm9/dcache.s, libnds/source/arm9/default_font.s, libnds/source/arm9/exceptionHandler.s, libnds/source/arm9/icache.s, libnds/source/common/biosCalls.s, libnds/source/common/interruptDispatcher.s: Removed.
Diffstat (limited to 'c/src/lib/libbsp/arm/nds/libnds/source/common/interruptDispatcher.S')
-rw-r--r--c/src/lib/libbsp/arm/nds/libnds/source/common/interruptDispatcher.S290
1 files changed, 290 insertions, 0 deletions
diff --git a/c/src/lib/libbsp/arm/nds/libnds/source/common/interruptDispatcher.S b/c/src/lib/libbsp/arm/nds/libnds/source/common/interruptDispatcher.S
new file mode 100644
index 0000000000..4ef656f132
--- /dev/null
+++ b/c/src/lib/libbsp/arm/nds/libnds/source/common/interruptDispatcher.S
@@ -0,0 +1,290 @@
+/*---------------------------------------------------------------------------------
+ $Id$
+
+ Copyright (C) 2005
+ Dave Murphy (WinterMute)
+
+ This software is provided 'as-is', without any express or implied
+ warranty. In no event will the authors be held liable for any
+ damages arising from the use of this software.
+
+ Permission is granted to anyone to use this software for any
+ purpose, including commercial applications, and to alter it and
+ redistribute it freely, subject to the following restrictions:
+
+ 1. The origin of this software must not be misrepresented; you
+ must not claim that you wrote the original software. If you use
+ this software in a product, an acknowledgment in the product
+ documentation would be appreciated but is not required.
+ 2. Altered source versions must be plainly marked as such, and
+ must not be misrepresented as being the original software.
+ 3. This notice may not be removed or altered from any source
+ distribution.
+
+ $Log$
+ Revision 1.1 2008/04/16 18:37:33 joel
+ 2008-04-16 Matthieu Bucchianeri <mbucchia@gmail.com>
+
+ * ChangeLog, Makefile.am, README, bsp_specs, configure.ac,
+ mk_libnds.sh, patch.libnds, preinstall.am, block/block.c,
+ clock/clock.c, console/console.c, coproc/coproc.S, coproc/coproc.c,
+ coproc/coproc.ld, dswifi/dswifi_license.txt, dswifi/makefile,
+ dswifi/arm7/makefile, dswifi/arm7/source/wifi_arm7.c,
+ dswifi/arm7/source/wifi_arm7.h, dswifi/arm9/makefile,
+ dswifi/arm9/source/sgIP.c, dswifi/arm9/source/sgIP.h,
+ dswifi/arm9/source/sgIP_ARP.c, dswifi/arm9/source/sgIP_ARP.h,
+ dswifi/arm9/source/sgIP_Config.h, dswifi/arm9/source/sgIP_DHCP.c,
+ dswifi/arm9/source/sgIP_DHCP.h, dswifi/arm9/source/sgIP_DNS.c,
+ dswifi/arm9/source/sgIP_DNS.h, dswifi/arm9/source/sgIP_Hub.c,
+ dswifi/arm9/source/sgIP_Hub.h, dswifi/arm9/source/sgIP_ICMP.c,
+ dswifi/arm9/source/sgIP_ICMP.h, dswifi/arm9/source/sgIP_IP.c,
+ dswifi/arm9/source/sgIP_IP.h, dswifi/arm9/source/sgIP_TCP.c,
+ dswifi/arm9/source/sgIP_TCP.h, dswifi/arm9/source/sgIP_UDP.c,
+ dswifi/arm9/source/sgIP_UDP.h, dswifi/arm9/source/sgIP_memblock.c,
+ dswifi/arm9/source/sgIP_memblock.h,
+ dswifi/arm9/source/sgIP_sockets.c, dswifi/arm9/source/sgIP_sockets.h,
+ dswifi/arm9/source/wifi_arm9.c, dswifi/arm9/source/wifi_arm9.h,
+ dswifi/common/source/dsregs.h, dswifi/common/source/spinlock.h,
+ dswifi/common/source/spinlock.s, dswifi/common/source/wifi_shared.h,
+ dswifi/include/dswifi7.h, dswifi/include/dswifi9.h,
+ dswifi/include/dswifi_version.h, dswifi/include/netdb.h,
+ dswifi/include/sgIP_errno.h, dswifi/include/netinet/in.h, fb/fb.c,
+ fb/fb.h, include/bsp.h, include/my_ipc.h, include/tm27.h,
+ include/types.h, include/sys/iosupport.h, irq/irq.c, irq/irq.h,
+ libfat/gba/include/fat.h, libfat/include/fat.h,
+ libfat/nds/include/fat.h, libfat/source/bit_ops.h,
+ libfat/source/cache.c, libfat/source/cache.h, libfat/source/common.h,
+ libfat/source/directory.c, libfat/source/directory.h,
+ libfat/source/fatdir.c, libfat/source/fatdir.h,
+ libfat/source/fatfile.c, libfat/source/fatfile.h,
+ libfat/source/file_allocation_table.c,
+ libfat/source/file_allocation_table.h, libfat/source/filetime.c,
+ libfat/source/filetime.h, libfat/source/libfat.c,
+ libfat/source/mem_allocate.h, libfat/source/partition.c,
+ libfat/source/partition.h, libfat/source/disc_io/disc.c,
+ libfat/source/disc_io/disc.h, libfat/source/disc_io/disc_io.h,
+ libfat/source/disc_io/io_cf_common.c,
+ libfat/source/disc_io/io_cf_common.h,
+ libfat/source/disc_io/io_dldi.h, libfat/source/disc_io/io_dldi.s,
+ libfat/source/disc_io/io_efa2.c, libfat/source/disc_io/io_efa2.h,
+ libfat/source/disc_io/io_fcsr.c, libfat/source/disc_io/io_fcsr.h,
+ libfat/source/disc_io/io_m3_common.c,
+ libfat/source/disc_io/io_m3_common.h,
+ libfat/source/disc_io/io_m3cf.c, libfat/source/disc_io/io_m3cf.h,
+ libfat/source/disc_io/io_m3sd.c, libfat/source/disc_io/io_m3sd.h,
+ libfat/source/disc_io/io_mpcf.c, libfat/source/disc_io/io_mpcf.h,
+ libfat/source/disc_io/io_njsd.c, libfat/source/disc_io/io_njsd.h,
+ libfat/source/disc_io/io_nmmc.c, libfat/source/disc_io/io_nmmc.h,
+ libfat/source/disc_io/io_sc_common.c,
+ libfat/source/disc_io/io_sc_common.h,
+ libfat/source/disc_io/io_sccf.c, libfat/source/disc_io/io_sccf.h,
+ libfat/source/disc_io/io_scsd.c, libfat/source/disc_io/io_scsd.h,
+ libfat/source/disc_io/io_scsd_s.s,
+ libfat/source/disc_io/io_sd_common.c,
+ libfat/source/disc_io/io_sd_common.h, libnds/Makefile.arm7,
+ libnds/Makefile.arm9, libnds/libnds_license.txt,
+ libnds/basicARM7/source/defaultARM7.c,
+ libnds/include/default_font_bin.h, libnds/include/gbfs.h,
+ libnds/include/nds.h, libnds/include/nds/bios.h,
+ libnds/include/nds/card.h, libnds/include/nds/dma.h,
+ libnds/include/nds/interrupts.h, libnds/include/nds/ipc.h,
+ libnds/include/nds/jtypes.h, libnds/include/nds/memory.h,
+ libnds/include/nds/registers_alt.h, libnds/include/nds/reload.h,
+ libnds/include/nds/system.h, libnds/include/nds/timers.h,
+ libnds/include/nds/arm7/audio.h, libnds/include/nds/arm7/clock.h,
+ libnds/include/nds/arm7/serial.h, libnds/include/nds/arm7/touch.h,
+ libnds/include/nds/arm9/background.h,
+ libnds/include/nds/arm9/boxtest.h, libnds/include/nds/arm9/cache.h,
+ libnds/include/nds/arm9/console.h,
+ libnds/include/nds/arm9/exceptions.h,
+ libnds/include/nds/arm9/image.h, libnds/include/nds/arm9/input.h,
+ libnds/include/nds/arm9/math.h, libnds/include/nds/arm9/ndsmotion.h,
+ libnds/include/nds/arm9/pcx.h, libnds/include/nds/arm9/postest.h,
+ libnds/include/nds/arm9/rumble.h, libnds/include/nds/arm9/sound.h,
+ libnds/include/nds/arm9/sprite.h, libnds/include/nds/arm9/trig_lut.h,
+ libnds/include/nds/arm9/video.h, libnds/include/nds/arm9/videoGL.h,
+ libnds/source/arm7/audio.c, libnds/source/arm7/clock.c,
+ libnds/source/arm7/microphone.c, libnds/source/arm7/spi.c,
+ libnds/source/arm7/touch.c, libnds/source/arm7/userSettings.c,
+ libnds/source/arm9/COS.bin, libnds/source/arm9/COS.s,
+ libnds/source/arm9/SIN.bin, libnds/source/arm9/SIN.s,
+ libnds/source/arm9/TAN.bin, libnds/source/arm9/TAN.s,
+ libnds/source/arm9/boxtest.c, libnds/source/arm9/console.c,
+ libnds/source/arm9/dcache.s, libnds/source/arm9/default_font.bin,
+ libnds/source/arm9/default_font.s,
+ libnds/source/arm9/exceptionHandler.S,
+ libnds/source/arm9/exceptionHandler.s,
+ libnds/source/arm9/exceptions.c, libnds/source/arm9/gurumeditation.c,
+ libnds/source/arm9/icache.s, libnds/source/arm9/image.c,
+ libnds/source/arm9/initSystem.c, libnds/source/arm9/keys.c,
+ libnds/source/arm9/ndsmotion.c, libnds/source/arm9/pcx.c,
+ libnds/source/arm9/rumble.c, libnds/source/arm9/sound.c,
+ libnds/source/arm9/system.c, libnds/source/arm9/touch.c,
+ libnds/source/arm9/video.c, libnds/source/arm9/videoGL.c,
+ libnds/source/common/biosCalls.s, libnds/source/common/card.c,
+ libnds/source/common/gbfs.c,
+ libnds/source/common/interruptDispatcher.s,
+ libnds/source/common/interrupts.c, rtc/rtc.c, sound/sound.c,
+ sound/sound.h, start/start.S, startup/linkcmds, startup/start.c,
+ timer/timer.c, tools/Makefile.am, tools/bin2s, tools/bin2s.c,
+ tools/configure.ac, tools/runtest,
+ tools/ndstool/include/arm7_sha1_homebrew.h,
+ tools/ndstool/include/arm7_sha1_nintendo.h,
+ tools/ndstool/include/banner.h, tools/ndstool/include/bigint.h,
+ tools/ndstool/include/crc.h, tools/ndstool/include/default_icon.h,
+ tools/ndstool/include/encryption.h, tools/ndstool/include/header.h,
+ tools/ndstool/include/hook.h, tools/ndstool/include/little.h,
+ tools/ndstool/include/loadme.h, tools/ndstool/include/logo.h,
+ tools/ndstool/include/ndscreate.h,
+ tools/ndstool/include/ndsextract.h, tools/ndstool/include/ndstool.h,
+ tools/ndstool/include/ndstree.h, tools/ndstool/include/overlay.h,
+ tools/ndstool/include/passme.h, tools/ndstool/include/passme_sram.h,
+ tools/ndstool/include/passme_vhd1.h,
+ tools/ndstool/include/passme_vhd2.h, tools/ndstool/include/raster.h,
+ tools/ndstool/include/sha1.h, tools/ndstool/include/types.h,
+ tools/ndstool/source/arm7_sha1_homebrew.c,
+ tools/ndstool/source/arm7_sha1_nintendo.c,
+ tools/ndstool/source/banner.cpp, tools/ndstool/source/bigint.cpp,
+ tools/ndstool/source/compile_date.c, tools/ndstool/source/crc.cpp,
+ tools/ndstool/source/default_icon.c,
+ tools/ndstool/source/encryption.cpp, tools/ndstool/source/header.cpp,
+ tools/ndstool/source/hook.cpp, tools/ndstool/source/loadme.c,
+ tools/ndstool/source/logo.cpp, tools/ndstool/source/ndscodes.cpp,
+ tools/ndstool/source/ndscreate.cpp,
+ tools/ndstool/source/ndsextract.cpp,
+ tools/ndstool/source/ndstool.cpp, tools/ndstool/source/ndstree.cpp,
+ tools/ndstool/source/passme.cpp, tools/ndstool/source/passme_sram.c,
+ tools/ndstool/source/raster.cpp, tools/ndstool/source/sha1.cpp,
+ touchscreen/README.reco, touchscreen/parser.c, touchscreen/reco.c,
+ touchscreen/reco.h, touchscreen/touchscreen.c,
+ touchscreen/touchscreen.h, wifi/compat.c, wifi/compat.h, wifi/wifi.c:
+ New files.
+
+ Revision 1.10 2007/08/11 06:00:23 wntrmute
+ make nesting really work
+
+ Revision 1.9 2007/01/10 15:48:27 wntrmute
+ remove unused code
+
+ Revision 1.8 2006/12/16 09:10:02 wntrmute
+ acknowledge interrupt before calling handler
+
+ Revision 1.7 2006/04/26 05:11:31 wntrmute
+ rebase dtcm, take __irq_flags and __irq_vector from linker script
+ move arm7 irq vector & irq flags to actual locations
+
+ Revision 1.6 2006/04/23 18:19:15 wntrmute
+ reworked interrupt code to allow dtcm moving
+
+ Revision 1.5 2005/12/12 13:01:55 wntrmute
+ disable interrupts on return from user handler
+
+ Revision 1.4 2005/10/21 22:43:42 wntrmute
+ restore REG_IME on exit from null handler
+
+ Revision 1.3 2005/09/27 18:21:53 wntrmute
+ safer nested interrupt support
+
+ Revision 1.2 2005/09/04 16:37:01 wntrmute
+ check for NULL handler
+
+ Revision 1.1 2005/09/03 17:09:35 wntrmute
+ added interworking aware interrupt dispatcher
+
+
+---------------------------------------------------------------------------------*/
+
+#ifdef ARM7
+ .text
+#endif
+
+#ifdef ARM9
+ .section .itcm,"ax",%progbits
+#endif
+
+ .extern irqTable
+ .code 32
+
+ .global IntrMain
+@---------------------------------------------------------------------------------
+IntrMain:
+@---------------------------------------------------------------------------------
+ mov r3, #0x4000000 @ REG_BASE
+
+ ldr r1, [r3, #0x208] @ r1 = IME
+ str r3, [r3, #0x208] @ disable IME
+ mrs r0, spsr
+ stmfd sp!, {r0-r1,r3,lr} @ {spsr, IME, REG_BASE, lr_irq}
+
+ ldr r1, [r3,#0x210] @ REG_IE
+ ldr r2, [r3,#0x214] @ REG_IF
+ and r1,r1,r2
+
+ ldr r0,=__irq_flags @ defined by linker script
+
+ ldr r2,[r0]
+ orr r2,r2,r1
+ str r2,[r0]
+
+ ldr r2,=irqTable
+@---------------------------------------------------------------------------------
+findIRQ:
+@---------------------------------------------------------------------------------
+ ldr r0, [r2, #4]
+ cmp r0,#0
+ beq no_handler
+ ands r0, r0, r1
+ bne jump_intr
+ add r2, r2, #8
+ b findIRQ
+
+@---------------------------------------------------------------------------------
+no_handler:
+@---------------------------------------------------------------------------------
+ str r1, [r3, #0x0214] @ IF Clear
+ ldmfd sp!, {r0-r1,r3,lr} @ {spsr, IME, REG_BASE, lr_irq}
+ str r1, [r3, #0x208] @ restore REG_IME
+ mov pc,lr
+
+@---------------------------------------------------------------------------------
+jump_intr:
+@---------------------------------------------------------------------------------
+ ldr r1, [r2] @ user IRQ handler address
+ cmp r1, #0
+ bne got_handler
+ mov r1, r0
+ b no_handler
+@---------------------------------------------------------------------------------
+got_handler:
+@---------------------------------------------------------------------------------
+
+ mrs r2, cpsr
+ bic r2, r2, #0xdf @ \__
+ orr r2, r2, #0x1f @ / --> Enable IRQ & FIQ. Set CPU mode to System.
+ msr cpsr,r2
+
+ str r0, [r3, #0x0214] @ IF Clear
+
+ push {lr}
+ adr lr, IntrRet
+ bx r1
+
+@---------------------------------------------------------------------------------
+IntrRet:
+@---------------------------------------------------------------------------------
+ mov r3, #0x4000000 @ REG_BASE
+ str r3, [r3, #0x208] @ disable IME
+ pop {lr}
+
+ mrs r3, cpsr
+ bic r3, r3, #0xdf @ \__
+ orr r3, r3, #0x92 @ / --> Disable IRQ. Enable FIQ. Set CPU mode to IRQ.
+ msr cpsr, r3
+
+ ldmfd sp!, {r0-r1,r3,lr} @ {spsr, IME, REG_BASE, lr_irq}
+ msr spsr, r0 @ restore spsr
+ str r1, [r3, #0x208] @ restore REG_IME
+ mov pc,lr
+
+ .pool
+ .end