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-rw-r--r--nuttx/arch/x86/src/common/up_allocateheap.c82
-rw-r--r--nuttx/arch/x86/src/common/up_arch.h90
-rw-r--r--nuttx/arch/x86/src/common/up_exit.c174
-rw-r--r--nuttx/arch/x86/src/common/up_initialize.c168
-rw-r--r--nuttx/arch/x86/src/common/up_internal.h258
-rw-r--r--nuttx/arch/x86/src/common/up_interruptcontext.c72
-rw-r--r--nuttx/arch/x86/src/common/up_lowputs.c74
-rw-r--r--nuttx/arch/x86/src/common/up_mdelay.c90
-rw-r--r--nuttx/arch/x86/src/common/up_modifyreg16.c85
-rw-r--r--nuttx/arch/x86/src/common/up_modifyreg32.c85
-rw-r--r--nuttx/arch/x86/src/common/up_modifyreg8.c85
-rw-r--r--nuttx/arch/x86/src/common/up_puts.c75
-rw-r--r--nuttx/arch/x86/src/common/up_udelay.c129
13 files changed, 1467 insertions, 0 deletions
diff --git a/nuttx/arch/x86/src/common/up_allocateheap.c b/nuttx/arch/x86/src/common/up_allocateheap.c
new file mode 100644
index 000000000..3273d681f
--- /dev/null
+++ b/nuttx/arch/x86/src/common/up_allocateheap.c
@@ -0,0 +1,82 @@
+/****************************************************************************
+ * arch/x86/src/common/up_allocateheap.c
+ *
+ * Copyright (C) 2011 Gregory Nutt. All rights reserved.
+ * Author: Gregory Nutt <spudmonkey@racsa.co.cr>
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in
+ * the documentation and/or other materials provided with the
+ * distribution.
+ * 3. Neither the name NuttX nor the names of its contributors may be
+ * used to endorse or promote products derived from this software
+ * without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
+ * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
+ * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
+ * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
+ * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
+ * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
+ * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
+ * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGE.
+ *
+ ****************************************************************************/
+
+/****************************************************************************
+ * Included Files
+ ****************************************************************************/
+
+#include <nuttx/config.h>
+
+#include <sys/types.h>
+#include <debug.h>
+
+#include <nuttx/arch.h>
+#include <arch/board/board.h>
+
+#include "up_arch.h"
+#include "up_internal.h"
+
+/****************************************************************************
+ * Private Definitions
+ ****************************************************************************/
+
+/****************************************************************************
+ * Private Data
+ ****************************************************************************/
+
+/****************************************************************************
+ * Private Functions
+ ****************************************************************************/
+
+/****************************************************************************
+ * Public Functions
+ ****************************************************************************/
+
+/****************************************************************************
+ * Name: up_allocate_heap
+ *
+ * Description:
+ * The heap may be statically allocated by defining CONFIG_HEAP_BASE and
+ * CONFIG_HEAP_SIZE. If these are not defined, then this function will be
+ * called to dynamically set aside the heap region.
+ *
+ ****************************************************************************/
+
+void up_allocate_heap(FAR void **heap_start, size_t *heap_size)
+{
+ up_ledon(LED_HEAPALLOCATE);
+ *heap_start = (FAR void*)g_heapbase;
+ *heap_size = CONFIG_DRAM_END - g_heapbase;
+}
diff --git a/nuttx/arch/x86/src/common/up_arch.h b/nuttx/arch/x86/src/common/up_arch.h
new file mode 100644
index 000000000..96d49d306
--- /dev/null
+++ b/nuttx/arch/x86/src/common/up_arch.h
@@ -0,0 +1,90 @@
+/****************************************************************************
+ * arch/x86/src/common/up_arch.h
+ *
+ * Copyright (C) 2011 Gregory Nutt. All rights reserved.
+ * Author: Gregory Nutt <spudmonkey@racsa.co.cr>
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in
+ * the documentation and/or other materials provided with the
+ * distribution.
+ * 3. Neither the name NuttX nor the names of its contributors may be
+ * used to endorse or promote products derived from this software
+ * without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
+ * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
+ * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
+ * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
+ * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
+ * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
+ * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
+ * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGE.
+ *
+ ****************************************************************************/
+
+#ifndef ___ARCH_X86_SRC_COMMON_UP_ARCH_H
+#define ___ARCH_X86_SRC_COMMON_UP_ARCH_H
+
+/****************************************************************************
+ * Included Files
+ ****************************************************************************/
+
+#include <nuttx/config.h>
+#ifndef __ASSEMBLY__
+# include <stdint.h>
+#endif
+#include <arch/io.h>
+
+/****************************************************************************
+ * Pre-processor Definitions
+ ****************************************************************************/
+
+/****************************************************************************
+ * Inline Functions
+ ****************************************************************************/
+
+#ifndef __ASSEMBLY__
+
+# define getreg8(p) inb(p)
+# define putreg8(v,p) outb(v,p)
+# define getreg16(p) inw(p)
+# define putreg16(v,p) outw(v,p)
+# define getreg32(p) inl(p)
+# define putreg32(v,p) outl(v,p)
+
+/****************************************************************************
+ * Public Function Prototypes
+ ****************************************************************************/
+
+#undef EXTERN
+#if defined(__cplusplus)
+#define EXTERN extern "C"
+extern "C" {
+#else
+#define EXTERN extern
+#endif
+
+/* Atomic modification of registers */
+
+EXTERN void modifyreg8(unsigned int addr, uint8_t clearbits, uint8_t setbits);
+EXTERN void modifyreg16(unsigned int addr, uint16_t clearbits, uint16_t setbits);
+EXTERN void modifyreg32(unsigned int addr, uint32_t clearbits, uint32_t setbits);
+
+#undef EXTERN
+#if defined(__cplusplus)
+}
+#endif
+
+#endif /* __ASSEMBLY__ */
+#endif /* ___ARCH_X86_SRC_COMMON_UP_ARCH_H */
diff --git a/nuttx/arch/x86/src/common/up_exit.c b/nuttx/arch/x86/src/common/up_exit.c
new file mode 100644
index 000000000..ceca72c87
--- /dev/null
+++ b/nuttx/arch/x86/src/common/up_exit.c
@@ -0,0 +1,174 @@
+/****************************************************************************
+ * common/up_exit.c
+ *
+ * Copyright (C) 2011 Gregory Nutt. All rights reserved.
+ * Author: Gregory Nutt <spudmonkey@racsa.co.cr>
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in
+ * the documentation and/or other materials provided with the
+ * distribution.
+ * 3. Neither the name NuttX nor the names of its contributors may be
+ * used to endorse or promote products derived from this software
+ * without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
+ * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
+ * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
+ * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
+ * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
+ * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
+ * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
+ * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGE.
+ *
+ ****************************************************************************/
+
+/****************************************************************************
+ * Included Files
+ ****************************************************************************/
+
+#include <nuttx/config.h>
+
+#include <sched.h>
+#include <debug.h>
+#include <nuttx/arch.h>
+
+#include "os_internal.h"
+#include "up_internal.h"
+
+#ifdef CONFIG_DUMP_ON_EXIT
+#include <nuttx/fs.h>
+#endif
+
+/****************************************************************************
+ * Pre-processor Definitions
+ ****************************************************************************/
+
+/****************************************************************************
+ * Private Data
+ ****************************************************************************/
+
+/****************************************************************************
+ * Private Functions
+ ****************************************************************************/
+
+/****************************************************************************
+ * Name: _up_dumponexit
+ *
+ * Description:
+ * Dump the state of all tasks whenever on task exits. This is debug
+ * instrumentation that was added to check file-related reference counting
+ * but could be useful again sometime in the future.
+ *
+ ****************************************************************************/
+
+#if defined(CONFIG_DUMP_ON_EXIT) && defined(CONFIG_DEBUG)
+static void _up_dumponexit(FAR _TCB *tcb, FAR void *arg)
+{
+#if CONFIG_NFILE_DESCRIPTORS > 0 || CONFIG_NFILE_STREAMS > 0
+ int i;
+#endif
+
+ sdbg(" TCB=%p name=%s pid=%d\n", tcb, tcb->argv[0], tcb->pid);
+ sdbg(" priority=%d state=%d\n", tcb->sched_priority, tcb->task_state);
+
+#if CONFIG_NFILE_DESCRIPTORS > 0
+ if (tcb->filelist)
+ {
+ sdbg(" filelist refcount=%d\n",
+ tcb->filelist->fl_crefs);
+
+ for (i = 0; i < CONFIG_NFILE_DESCRIPTORS; i++)
+ {
+ struct inode *inode = tcb->filelist->fl_files[i].f_inode;
+ if (inode)
+ {
+ sdbg(" fd=%d refcount=%d\n",
+ i, inode->i_crefs);
+ }
+ }
+ }
+#endif
+
+#if CONFIG_NFILE_STREAMS > 0
+ if (tcb->streams)
+ {
+ sdbg(" streamlist refcount=%d\n",
+ tcb->streams->sl_crefs);
+
+ for (i = 0; i < CONFIG_NFILE_STREAMS; i++)
+ {
+ struct file_struct *filep = &tcb->streams->sl_streams[i];
+ if (filep->fs_filedes >= 0)
+ {
+#if CONFIG_STDIO_BUFFER_SIZE > 0
+ sdbg(" fd=%d nbytes=%d\n",
+ filep->fs_filedes,
+ filep->fs_bufpos - filep->fs_bufstart);
+#else
+ sdbg(" fd=%d\n", filep->fs_filedes);
+#endif
+ }
+ }
+ }
+#endif
+}
+#endif
+
+/****************************************************************************
+ * Public Functions
+ ****************************************************************************/
+
+/****************************************************************************
+ * Name: _exit
+ *
+ * Description:
+ * This function causes the currently executing task to cease to exist.
+ * This is a special case of task_delete() where the task to be deleted is
+ * the currently executing task. It is more complex because a context
+ * switch must be perform to the next ready to run task.
+ *
+ ****************************************************************************/
+
+void _exit(int status)
+{
+ _TCB* tcb;
+
+ /* Disable interrupts. They will be restored when the next
+ * task is started.
+ */
+
+ (void)irqsave();
+
+ slldbg("TCB=%p exitting\n", g_readytorun.head);
+
+#if defined(CONFIG_DUMP_ON_EXIT) && defined(CONFIG_DEBUG)
+ slldbg("Other tasks:\n");
+ sched_foreach(_up_dumponexit, NULL);
+#endif
+
+ /* Destroy the task at the head of the ready to run list. */
+
+ (void)task_deletecurrent();
+
+ /* Now, perform the context switch to the new ready-to-run task at the
+ * head of the list.
+ */
+
+ tcb = (_TCB*)g_readytorun.head;
+
+ /* Then switch contexts */
+
+ up_fullcontextrestore(tcb->xcp.regs);
+}
+
diff --git a/nuttx/arch/x86/src/common/up_initialize.c b/nuttx/arch/x86/src/common/up_initialize.c
new file mode 100644
index 000000000..9ce9523ed
--- /dev/null
+++ b/nuttx/arch/x86/src/common/up_initialize.c
@@ -0,0 +1,168 @@
+/****************************************************************************
+ * arch/x86/src/common/up_initialize.c
+ *
+ * Copyright (C) 2011 Gregory Nutt. All rights reserved.
+ * Author: Gregory Nutt <spudmonkey@racsa.co.cr>
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in
+ * the documentation and/or other materials provided with the
+ * distribution.
+ * 3. Neither the name NuttX nor the names of its contributors may be
+ * used to endorse or promote products derived from this software
+ * without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
+ * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
+ * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
+ * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
+ * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
+ * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
+ * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
+ * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGE.
+ *
+ ****************************************************************************/
+
+/****************************************************************************
+ * Included Files
+ ****************************************************************************/
+
+#include <nuttx/config.h>
+
+#include <debug.h>
+
+#include <nuttx/arch.h>
+#include <nuttx/fs.h>
+#include <arch/board/board.h>
+
+#include "up_arch.h"
+#include "up_internal.h"
+
+/****************************************************************************
+ * Pre-processor Definitions
+ ****************************************************************************/
+
+/****************************************************************************
+ * Private Types
+ ****************************************************************************/
+
+/****************************************************************************
+ * Private Functions
+ ****************************************************************************/
+
+/****************************************************************************
+ * Name: up_calibratedelay
+ *
+ * Description:
+ * Delay loops are provided for short timing loops. This function, if
+ * enabled, will just wait for 100 seconds. Using a stopwatch, you can
+ * can then determine if the timing loops are properly calibrated.
+ *
+ ****************************************************************************/
+
+#if defined(CONFIG_ARCH_CALIBRATION) && defined(CONFIG_DEBUG)
+static void up_calibratedelay(void)
+{
+ int i;
+ lldbg("Beginning 100s delay\n");
+ for (i = 0; i < 100; i++)
+ {
+ up_mdelay(1000);
+ }
+ lldbg("End 100s delay\n");
+}
+#else
+# define up_calibratedelay()
+#endif
+
+/****************************************************************************
+ * Public Functions
+ ****************************************************************************/
+
+/****************************************************************************
+ * Name: up_initialize
+ *
+ * Description:
+ * up_initialize will be called once during OS initialization after the
+ * basic OS services have been initialized. The architecture specific
+ * details of initializing the OS will be handled here. Such things as
+ * setting up interrupt service routines, starting the clock, and
+ * registering device drivers are some of the things that are different
+ * for each processor and hardware platform.
+ *
+ * up_initialize is called after the OS initialized but before the user
+ * initialization logic has been started and before the libraries have
+ * been initialized. OS services and driver services are available.
+ *
+ ****************************************************************************/
+
+void up_initialize(void)
+{
+ /* Initialize global variables */
+
+ current_regs = NULL;
+
+ /* Calibrate the timing loop */
+
+ up_calibratedelay();
+
+ /* Add any extra memory fragments to the memory manager */
+
+ up_addregion();
+
+ /* Initialize the interrupt subsystem */
+
+ up_irqinitialize();
+
+ /* Initialize the DMA subsystem if the weak function stm32_dmainitialize has been
+ * brought into the build
+ */
+
+#ifdef CONFIG_ARCH_DMA
+#ifdef CONFIG_HAVE_WEAKFUNCTIONS
+ if (up_dmainitialize)
+#endif
+ {
+ up_dmainitialize();
+ }
+#endif
+
+ /* Initialize the system timer interrupt */
+
+#if !defined(CONFIG_SUPPRESS_INTERRUPTS) && !defined(CONFIG_SUPPRESS_TIMER_INTS)
+ up_timerinit();
+#endif
+
+ /* Register devices */
+
+#if CONFIG_NFILE_DESCRIPTORS > 0
+ devnull_register(); /* Standard /dev/null */
+#endif
+
+ /* Initialize the serial device driver */
+
+#ifdef CONFIG_USE_SERIALDRIVER
+ up_serialinit();
+#elif defined(CONFIG_DEV_LOWCONSOLE)
+ lowconsole_init();
+#endif
+
+ /* Initialize the netwok */
+
+ up_netinitialize();
+
+ /* Initialize USB -- device and/or host */
+
+ up_usbinitialize();
+ up_ledon(LED_IRQSENABLED);
+}
diff --git a/nuttx/arch/x86/src/common/up_internal.h b/nuttx/arch/x86/src/common/up_internal.h
new file mode 100644
index 000000000..9730c3372
--- /dev/null
+++ b/nuttx/arch/x86/src/common/up_internal.h
@@ -0,0 +1,258 @@
+/****************************************************************************
+ * arch/x86/src/common/up_internal.h
+ *
+ * Copyright (C) 2011 Gregory Nutt. All rights reserved.
+ * Author: Gregory Nutt <spudmonkey@racsa.co.cr>
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in
+ * the documentation and/or other materials provided with the
+ * distribution.
+ * 3. Neither the name NuttX nor the names of its contributors may be
+ * used to endorse or promote products derived from this software
+ * without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
+ * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
+ * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
+ * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
+ * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
+ * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
+ * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
+ * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGE.
+ *
+ ****************************************************************************/
+
+#ifndef __ARCH_X86_SRC_COMMON_UP_INTERNAL_H
+#define __ARCH_X86_SRC_COMMON_UP_INTERNAL_H
+
+/****************************************************************************
+ * Included Files
+ ****************************************************************************/
+
+#ifndef __ASSEMBLY__
+# include <stdint.h>
+#endif
+
+/****************************************************************************
+ * Pre-processor Definitions
+ ****************************************************************************/
+
+/* Bring-up debug configurations. These are here (vs defconfig) because
+ * these should only be controlled during low level board bring-up and not
+ * part of normal platform configuration.
+ */
+
+#undef CONFIG_SUPPRESS_INTERRUPTS /* DEFINED: Do not enable interrupts */
+#undef CONFIG_SUPPRESS_TIMER_INTS /* DEFINED: No timer */
+#undef CONFIG_SUPPRESS_SERIAL_INTS /* DEFINED: Console will poll */
+#undef CONFIG_SUPPRESS_UART_CONFIG /* DEFINED: Do not reconfig UART */
+#undef CONFIG_DUMP_ON_EXIT /* DEFINED: Dump task state on exit */
+
+/* Determine which (if any) console driver to use */
+
+#if CONFIG_NFILE_DESCRIPTORS == 0 || defined(CONFIG_DEV_LOWCONSOLE)
+# undef CONFIG_USE_SERIALDRIVER
+# undef CONFIG_USE_EARLYSERIALINIT
+#elif defined(CONFIG_DEV_CONSOLE) && CONFIG_NFILE_DESCRIPTORS > 0
+# define CONFIG_USE_SERIALDRIVER 1
+# define CONFIG_USE_EARLYSERIALINIT 1
+#endif
+
+/* Check if an interrupt stack size is configured */
+
+#ifndef CONFIG_ARCH_INTERRUPTSTACK
+# define CONFIG_ARCH_INTERRUPTSTACK 0
+#endif
+
+/* Macros to handle saving and restore interrupt state. In the current
+ * model, the state is copied from the stack to the TCB, but only a
+ * referenced is passed to get the state from the TCB.
+ */
+
+#define up_savestate(regs) up_copystate(regs, current_regs)
+#define up_restorestate(regs) (current_regs = regs)
+
+/****************************************************************************
+ * Public Types
+ ****************************************************************************/
+
+#ifndef __ASSEMBLY__
+typedef void (*up_vector_t)(void);
+#endif
+
+/****************************************************************************
+ * Public Variables
+ ****************************************************************************/
+
+#ifndef __ASSEMBLY__
+/* This holds a references to the current interrupt level register storage
+ * structure. If is non-NULL only during interrupt processing.
+ */
+
+extern uint32_t *current_regs;
+
+/* This is the beginning of heap as provided from up_head.S. This is the first
+ * address in DRAM after the loaded program+bss+idle stack. The end of the
+ * heap is CONFIG_DRAM_END
+ */
+
+extern uint32_t g_heapbase;
+
+/* Address of the saved user stack pointer */
+
+#if CONFIG_ARCH_INTERRUPTSTACK > 3
+extern uint32_t g_userstack;
+#endif
+
+/* These 'addresses' of these values are setup by the linker script. They are
+ * not actual uint32_t storage locations! They are only used meaningfully in the
+ * following way:
+ *
+ * - The linker script defines, for example, the symbol_sdata.
+ * - The declareion extern uint32_t _sdata; makes C happy. C will believe
+ * that the value _sdata is the address of a uint32_t variable _data (it is
+ * not!).
+ * - We can recoved the linker value then by simply taking the address of
+ * of _data. like: uint32_t *pdata = &_sdata;
+ */
+
+extern uint32_t _stext; /* Start of .text */
+extern uint32_t _etext; /* End_1 of .text + .rodata */
+extern const uint32_t _eronly; /* End+1 of read only section (.text + .rodata) */
+extern uint32_t _sdata; /* Start of .data */
+extern uint32_t _edata; /* End+1 of .data */
+extern uint32_t _sbss; /* Start of .bss */
+extern uint32_t _ebss; /* End+1 of .bss */
+#endif
+
+/****************************************************************************
+ * Inline Functions
+ ****************************************************************************/
+
+/****************************************************************************
+ * Public Functions
+ ****************************************************************************/
+
+#ifndef __ASSEMBLY__
+
+/* Defined in files with the same name as the function */
+
+extern void up_boot(void);
+extern void up_copystate(uint32_t *dest, uint32_t *src);
+extern void up_decodeirq(uint32_t *regs);
+extern void up_irqinitialize(void);
+#ifdef CONFIG_ARCH_DMA
+extern void weak_function up_dmainitialize(void);
+#endif
+extern int up_saveusercontext(uint32_t *saveregs);
+extern void up_fullcontextrestore(uint32_t *restoreregs) __attribute__ ((noreturn));
+extern void up_switchcontext(uint32_t *saveregs, uint32_t *restoreregs);
+extern void up_sigdeliver(void);
+extern int up_timerisr(int irq, uint32_t *regs);
+extern void up_lowputc(char ch);
+extern void up_puts(const char *str);
+extern void up_lowputs(const char *str);
+
+extern void up_doirq(int irq, uint32_t *regs);
+#ifdef CONFIG_PAGING
+extern void up_pginitialize(void);
+extern uint32_t *up_va2pte(uintptr_t vaddr);
+extern void up_dataabort(uint32_t *regs, uint32_t far, uint32_t fsr);
+#else /* CONFIG_PAGING */
+# define up_pginitialize()
+extern void up_dataabort(uint32_t *regs);
+#endif /* CONFIG_PAGING */
+extern void up_prefetchabort(uint32_t *regs);
+extern void up_syscall(uint32_t *regs);
+extern void up_undefinedinsn(uint32_t *regs);
+
+/* Defined in up_vectors.S */
+
+extern void up_vectorundefinsn(void);
+extern void up_vectorswi(void);
+extern void up_vectorprefetch(void);
+extern void up_vectordata(void);
+extern void up_vectoraddrexcptn(void);
+extern void up_vectorirq(void);
+extern void up_vectorfiq(void);
+
+/* Defined in up_allocateheap.c */
+
+#if CONFIG_MM_REGIONS > 1
+void up_addregion(void);
+#else
+# define up_addregion()
+#endif
+
+/* Defined in up_serial.c */
+
+#if CONFIG_NFILE_DESCRIPTORS > 0
+extern void up_earlyserialinit(void);
+extern void up_serialinit(void);
+#else
+# define up_earlyserialinit()
+# define up_serialinit()
+#endif
+
+/* Defined in drivers/lowconsole.c */
+
+#ifdef CONFIG_DEV_LOWCONSOLE
+extern void lowconsole_init(void);
+#else
+# define lowconsole_init()
+#endif
+
+/* Defined in up_watchdog.c */
+
+extern void up_wdtinit(void);
+
+/* Defined in up_timerisr.c */
+
+extern void up_timerinit(void);
+
+/* Defined in up_irq.c */
+
+extern void up_maskack_irq(int irq);
+
+/* Defined in board/up_leds.c */
+
+#ifdef CONFIG_ARCH_LEDS
+extern void up_ledinit(void);
+extern void up_ledon(int led);
+extern void up_ledoff(int led);
+#else
+# define up_ledinit()
+# define up_ledon(led)
+# define up_ledoff(led)
+#endif
+
+/* Defined in board/up_network.c */
+
+#ifdef CONFIG_NET
+extern void up_netinitialize(void);
+#else
+# define up_netinitialize()
+#endif
+
+#ifdef CONFIG_USBDEV
+extern void up_usbinitialize(void);
+extern void up_usbuninitialize(void);
+#else
+# define up_usbinitialize()
+# define up_usbuninitialize()
+#endif
+
+#endif /* __ASSEMBLY__ */
+
+#endif /* __ARCH_X86_SRC_COMMON_UP_INTERNAL_H */
diff --git a/nuttx/arch/x86/src/common/up_interruptcontext.c b/nuttx/arch/x86/src/common/up_interruptcontext.c
new file mode 100644
index 000000000..6fbe67989
--- /dev/null
+++ b/nuttx/arch/x86/src/common/up_interruptcontext.c
@@ -0,0 +1,72 @@
+/****************************************************************************
+ * arch/x86/src/common/up_interruptcontext.c
+ *
+ * Copyright (C) 2011 Gregory Nutt. All rights reserved.
+ * Author: Gregory Nutt <spudmonkey@racsa.co.cr>
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in
+ * the documentation and/or other materials provided with the
+ * distribution.
+ * 3. Neither the name NuttX nor the names of its contributors may be
+ * used to endorse or promote products derived from this software
+ * without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
+ * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
+ * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
+ * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
+ * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
+ * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
+ * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
+ * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGE.
+ *
+ ****************************************************************************/
+
+/****************************************************************************
+ * Included Files
+ ****************************************************************************/
+
+#include <nuttx/config.h>
+
+#include <stdbool.h>
+#include <nuttx/arch.h>
+#include <nuttx/irq.h>
+
+#include "up_internal.h"
+
+/****************************************************************************
+ * Private Types
+ ****************************************************************************/
+
+/****************************************************************************
+ * Private Function Prototypes
+ ****************************************************************************/
+
+/****************************************************************************
+ * Global Functions
+ ****************************************************************************/
+
+/****************************************************************************
+ * Name: up_interrupt_context
+ *
+ * Description:
+ * Return true is we are currently executing in the interrupt handler
+ * context.
+ *
+ ****************************************************************************/
+
+bool up_interrupt_context(void)
+{
+ return current_regs != NULL;
+}
diff --git a/nuttx/arch/x86/src/common/up_lowputs.c b/nuttx/arch/x86/src/common/up_lowputs.c
new file mode 100644
index 000000000..46c8940cc
--- /dev/null
+++ b/nuttx/arch/x86/src/common/up_lowputs.c
@@ -0,0 +1,74 @@
+/****************************************************************************
+ * arch/x86/src/common/up_lowputs.c
+ *
+ * Copyright (C) 2011 Gregory Nutt. All rights reserved.
+ * Author: Gregory Nutt <spudmonkey@racsa.co.cr>
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in
+ * the documentation and/or other materials provided with the
+ * distribution.
+ * 3. Neither the name NuttX nor the names of its contributors may be
+ * used to endorse or promote products derived from this software
+ * without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
+ * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
+ * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
+ * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
+ * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
+ * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
+ * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
+ * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGE.
+ *
+ ****************************************************************************/
+
+/****************************************************************************
+ * Included Files
+ ****************************************************************************/
+
+#include <nuttx/config.h>
+
+#include "up_internal.h"
+
+/****************************************************************************
+ * Pre-processor Definitions
+ ****************************************************************************/
+
+/****************************************************************************
+ * Private Data
+ ****************************************************************************/
+
+/****************************************************************************
+ * Private Functions
+ ****************************************************************************/
+
+/****************************************************************************
+ * Public Functions
+ ****************************************************************************/
+
+/****************************************************************************
+ * Name: up_lowputs
+ *
+ * Description:
+ * This is a low-level helper function used to support debug.
+ *
+ ****************************************************************************/
+
+void up_lowputs(const char *str)
+{
+ while(*str)
+ {
+ up_lowputc(*str++);
+ }
+}
diff --git a/nuttx/arch/x86/src/common/up_mdelay.c b/nuttx/arch/x86/src/common/up_mdelay.c
new file mode 100644
index 000000000..22fc78d04
--- /dev/null
+++ b/nuttx/arch/x86/src/common/up_mdelay.c
@@ -0,0 +1,90 @@
+/****************************************************************************
+ * arch/x86/src/common/up_mdelay.c
+ *
+ * Copyright (C) 2011 Gregory Nutt. All rights reserved.
+ * Author: Gregory Nutt <spudmonkey@racsa.co.cr>
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in
+ * the documentation and/or other materials provided with the
+ * distribution.
+ * 3. Neither the name NuttX nor the names of its contributors may be
+ * used to endorse or promote products derived from this software
+ * without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
+ * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
+ * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
+ * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
+ * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
+ * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
+ * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
+ * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGE.
+ *
+ ****************************************************************************/
+
+/****************************************************************************
+ * Included Files
+ ****************************************************************************/
+
+#include <nuttx/config.h>
+#include <nuttx/arch.h>
+
+/****************************************************************************
+ * Definitions
+ ****************************************************************************/
+
+/****************************************************************************
+ * Private Types
+ ****************************************************************************/
+
+/****************************************************************************
+ * Private Function Prototypes
+ ****************************************************************************/
+
+/****************************************************************************
+ * Private Variables
+ ****************************************************************************/
+
+/****************************************************************************
+ * Private Functions
+ ****************************************************************************/
+
+/****************************************************************************
+ * Public Functions
+ ****************************************************************************/
+
+/****************************************************************************
+ * Name: up_mdelay
+ *
+ * Description:
+ * Delay inline for the requested number of milliseconds.
+ * *** NOT multi-tasking friendly ***
+ *
+ * ASSUMPTIONS:
+ * The setting CONFIG_BOARD_LOOPSPERMSEC has been calibrated
+ *
+ ****************************************************************************/
+
+void up_mdelay(unsigned int milliseconds)
+{
+ volatile int i;
+ volatile int j;
+
+ for (i = 0; i < milliseconds; i++)
+ {
+ for (j = 0; j < CONFIG_BOARD_LOOPSPERMSEC; j++)
+ {
+ }
+ }
+}
diff --git a/nuttx/arch/x86/src/common/up_modifyreg16.c b/nuttx/arch/x86/src/common/up_modifyreg16.c
new file mode 100644
index 000000000..9a7ae4507
--- /dev/null
+++ b/nuttx/arch/x86/src/common/up_modifyreg16.c
@@ -0,0 +1,85 @@
+/****************************************************************************
+ * arch/x86/src/common/up_modifyreg16.c
+ *
+ * Copyright (C) 2011 Gregory Nutt. All rights reserved.
+ * Author: Gregory Nutt <spudmonkey@racsa.co.cr>
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in
+ * the documentation and/or other materials provided with the
+ * distribution.
+ * 3. Neither the name NuttX nor the names of its contributors may be
+ * used to endorse or promote products derived from this software
+ * without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
+ * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
+ * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
+ * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
+ * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
+ * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
+ * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
+ * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGE.
+ *
+ ****************************************************************************/
+
+/****************************************************************************
+ * Included Files
+ ****************************************************************************/
+
+#include <nuttx/config.h>
+
+#include <stdint.h>
+#include <debug.h>
+
+#include <arch/irq.h>
+#include <nuttx/arch.h>
+
+#include "up_arch.h"
+
+/****************************************************************************
+ * Pre-processor Definitions
+ ****************************************************************************/
+
+/****************************************************************************
+ * Private Data
+ ****************************************************************************/
+
+/****************************************************************************
+ * Private Functions
+ ****************************************************************************/
+
+/****************************************************************************
+ * Public Functions
+ ****************************************************************************/
+
+/****************************************************************************
+ * Name: modifyreg16
+ *
+ * Description:
+ * Atomically modify the specified bits in a memory mapped register
+ *
+ ****************************************************************************/
+
+void modifyreg16(unsigned int addr, uint16_t clearbits, uint16_t setbits)
+{
+ irqstate_t flags;
+ uint16_t regval;
+
+ flags = irqsave();
+ regval = getreg16((uint16_t)addr);
+ regval &= ~clearbits;
+ regval |= setbits;
+ putreg16(regval, (uint16_t)addr);
+ irqrestore(flags);
+}
diff --git a/nuttx/arch/x86/src/common/up_modifyreg32.c b/nuttx/arch/x86/src/common/up_modifyreg32.c
new file mode 100644
index 000000000..c2a400335
--- /dev/null
+++ b/nuttx/arch/x86/src/common/up_modifyreg32.c
@@ -0,0 +1,85 @@
+/****************************************************************************
+ * arch/x86/src/common/up_modifyreg32.c
+ *
+ * Copyright (C) 2011 Gregory Nutt. All rights reserved.
+ * Author: Gregory Nutt <spudmonkey@racsa.co.cr>
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in
+ * the documentation and/or other materials provided with the
+ * distribution.
+ * 3. Neither the name NuttX nor the names of its contributors may be
+ * used to endorse or promote products derived from this software
+ * without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
+ * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
+ * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
+ * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
+ * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
+ * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
+ * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
+ * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGE.
+ *
+ ****************************************************************************/
+
+/****************************************************************************
+ * Included Files
+ ****************************************************************************/
+
+#include <nuttx/config.h>
+
+#include <stdint.h>
+#include <debug.h>
+
+#include <arch/irq.h>
+#include <nuttx/arch.h>
+
+#include "up_arch.h"
+
+/****************************************************************************
+ * Pre-processor Definitions
+ ****************************************************************************/
+
+/****************************************************************************
+ * Private Data
+ ****************************************************************************/
+
+/****************************************************************************
+ * Private Functions
+ ****************************************************************************/
+
+/****************************************************************************
+ * Public Functions
+ ****************************************************************************/
+
+/****************************************************************************
+ * Name: modifyreg32
+ *
+ * Description:
+ * Atomically modify the specified bits in a memory mapped register
+ *
+ ****************************************************************************/
+
+void modifyreg32(unsigned int addr, uint32_t clearbits, uint32_t setbits)
+{
+ irqstate_t flags;
+ uint32_t regval;
+
+ flags = irqsave();
+ regval = getreg32((uint16_t)addr);
+ regval &= ~clearbits;
+ regval |= setbits;
+ putreg32(regval, (uint16_t)addr);
+ irqrestore(flags);
+}
diff --git a/nuttx/arch/x86/src/common/up_modifyreg8.c b/nuttx/arch/x86/src/common/up_modifyreg8.c
new file mode 100644
index 000000000..fd4031dc5
--- /dev/null
+++ b/nuttx/arch/x86/src/common/up_modifyreg8.c
@@ -0,0 +1,85 @@
+/****************************************************************************
+ * arch/x86/src/common/up_modifyreg8.c
+ *
+ * Copyright (C) 2011 Gregory Nutt. All rights reserved.
+ * Author: Gregory Nutt <spudmonkey@racsa.co.cr>
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in
+ * the documentation and/or other materials provided with the
+ * distribution.
+ * 3. Neither the name NuttX nor the names of its contributors may be
+ * used to endorse or promote products derived from this software
+ * without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
+ * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
+ * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
+ * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
+ * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
+ * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
+ * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
+ * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGE.
+ *
+ ****************************************************************************/
+
+/****************************************************************************
+ * Included Files
+ ****************************************************************************/
+
+#include <nuttx/config.h>
+
+#include <stdint.h>
+#include <debug.h>
+
+#include <arch/irq.h>
+#include <nuttx/arch.h>
+
+#include "up_arch.h"
+
+/****************************************************************************
+ * Pre-processor Definitions
+ ****************************************************************************/
+
+/****************************************************************************
+ * Private Data
+ ****************************************************************************/
+
+/****************************************************************************
+ * Private Functions
+ ****************************************************************************/
+
+/****************************************************************************
+ * Public Functions
+ ****************************************************************************/
+
+/****************************************************************************
+ * Name: modifyreg8
+ *
+ * Description:
+ * Atomically modify the specified bits in a memory mapped register
+ *
+ ****************************************************************************/
+
+void modifyreg8(unsigned int addr, uint8_t clearbits, uint8_t setbits)
+{
+ irqstate_t flags;
+ uint8_t regval;
+
+ flags = irqsave();
+ regval = getreg8((uint16_t)addr);
+ regval &= ~clearbits;
+ regval |= setbits;
+ putreg8(regval, (uint16_t)addr);
+ irqrestore(flags);
+}
diff --git a/nuttx/arch/x86/src/common/up_puts.c b/nuttx/arch/x86/src/common/up_puts.c
new file mode 100644
index 000000000..58420c598
--- /dev/null
+++ b/nuttx/arch/x86/src/common/up_puts.c
@@ -0,0 +1,75 @@
+/****************************************************************************
+ * arch/x86/src/common/up_puts.c
+ *
+ * Copyright (C) 2011 Gregory Nutt. All rights reserved.
+ * Author: Gregory Nutt <spudmonkey@racsa.co.cr>
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in
+ * the documentation and/or other materials provided with the
+ * distribution.
+ * 3. Neither the name NuttX nor the names of its contributors may be
+ * used to endorse or promote products derived from this software
+ * without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
+ * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
+ * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
+ * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
+ * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
+ * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
+ * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
+ * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGE.
+ *
+ ****************************************************************************/
+
+/****************************************************************************
+ * Included Files
+ ****************************************************************************/
+
+#include <nuttx/config.h>
+#include <nuttx/arch.h>
+
+#include "up_internal.h"
+
+/****************************************************************************
+ * Pre-processor Definitions
+ ****************************************************************************/
+
+/****************************************************************************
+ * Private Data
+ ****************************************************************************/
+
+/****************************************************************************
+ * Private Functions
+ ****************************************************************************/
+
+/****************************************************************************
+ * Public Functions
+ ****************************************************************************/
+
+/****************************************************************************
+ * Name: up_puts
+ *
+ * Description:
+ * This is a low-level helper function used to support debug.
+ *
+ ****************************************************************************/
+
+void up_puts(const char *str)
+{
+ while(*str)
+ {
+ up_putc(*str++);
+ }
+}
diff --git a/nuttx/arch/x86/src/common/up_udelay.c b/nuttx/arch/x86/src/common/up_udelay.c
new file mode 100644
index 000000000..92d3b7c16
--- /dev/null
+++ b/nuttx/arch/x86/src/common/up_udelay.c
@@ -0,0 +1,129 @@
+/****************************************************************************
+ * arch/x86/src/common/up_udelay.c
+ *
+ * Copyright (C) 2011 Gregory Nutt. All rights reserved.
+ * Author: Gregory Nutt <spudmonkey@racsa.co.cr>
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in
+ * the documentation and/or other materials provided with the
+ * distribution.
+ * 3. Neither the name NuttX nor the names of its contributors may be
+ * used to endorse or promote products derived from this software
+ * without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
+ * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
+ * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
+ * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
+ * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
+ * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
+ * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
+ * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGE.
+ *
+ ****************************************************************************/
+
+/****************************************************************************
+ * Included Files
+ ****************************************************************************/
+
+#include <nuttx/config.h>
+#include <sys/types.h>
+#include <nuttx/arch.h>
+
+/****************************************************************************
+ * Definitions
+ ****************************************************************************/
+
+#define CONFIG_BOARD_LOOPSPER100USEC ((CONFIG_BOARD_LOOPSPERMSEC+5)/10)
+#define CONFIG_BOARD_LOOPSPER10USEC ((CONFIG_BOARD_LOOPSPERMSEC+50)/100)
+#define CONFIG_BOARD_LOOPSPERUSEC ((CONFIG_BOARD_LOOPSPERMSEC+500)/1000)
+
+/****************************************************************************
+ * Private Types
+ ****************************************************************************/
+
+/****************************************************************************
+ * Private Function Prototypes
+ ****************************************************************************/
+
+/****************************************************************************
+ * Private Variables
+ ****************************************************************************/
+
+/****************************************************************************
+ * Private Functions
+ ****************************************************************************/
+
+/****************************************************************************
+ * Public Functions
+ ****************************************************************************/
+
+/****************************************************************************
+ * Name: up_udelay
+ *
+ * Description:
+ * Delay inline for the requested number of microseconds. NOTE: Because
+ * of all of the setup, several microseconds will be lost before the actual
+ * timing looop begins. Thus, the delay will always be a few microseconds
+ * longer than requested.
+ *
+ * *** NOT multi-tasking friendly ***
+ *
+ * ASSUMPTIONS:
+ * The setting CONFIG_BOARD_LOOPSPERMSEC has been calibrated
+ *
+ ****************************************************************************/
+
+void up_udelay(useconds_t microseconds)
+{
+ volatile int i;
+
+ /* We'll do this a little at a time because we expect that the
+ * CONFIG_BOARD_LOOPSPERUSEC is very inaccurate during to truncation in
+ * the divisions of its calculation. We'll use the largest values that
+ * we can in order to prevent significant error buildup in the loops.
+ */
+
+ while (microseconds > 1000)
+ {
+ for (i = 0; i < CONFIG_BOARD_LOOPSPERMSEC; i++)
+ {
+ }
+ microseconds -= 1000;
+ }
+
+ while (microseconds > 100)
+ {
+ for (i = 0; i < CONFIG_BOARD_LOOPSPER100USEC; i++)
+ {
+ }
+ microseconds -= 100;
+ }
+
+ while (microseconds > 10)
+ {
+ for (i = 0; i < CONFIG_BOARD_LOOPSPER10USEC; i++)
+ {
+ }
+ microseconds -= 10;
+ }
+
+ while (microseconds > 0)
+ {
+ for (i = 0; i < CONFIG_BOARD_LOOPSPERUSEC; i++)
+ {
+ }
+ microseconds--;
+ }
+}
generated by cgit v1.2.3 (git 2.39.1) at 2024-08-07 21:56:01 +0000