git-svn-id: svn://svn.code.sf.net/p/chibios/svn/trunk@1399 35acf78f-673a-0410-8e92-d51de3d6d3f4

4 files changed, 332 insertions, 0 deletions

diff --git a/os/ports/GCC/SIMIA32/chcore.c b/os/ports/GCC/SIMIA32/chcore.c
new file mode 100644
index 000000000..c6c5d69e1
--- /dev/null
+++ b/os/ports/GCC/SIMIA32/chcore.c
@@ -0,0 +1,69 @@
+/*

+    ChibiOS/RT - Copyright (C) 2006-2007 Giovanni Di Sirio.

+

+    This file is part of ChibiOS/RT.

+

+    ChibiOS/RT 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 3 of the License, or

+    (at your option) any later version.

+

+    ChibiOS/RT 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, see <http://www.gnu.org/licenses/>.

+*/

+

+/**

+ * @addtogroup SIMIA32_CORE

+ * @{

+ */

+

+#include "ch.h"

+#include "hal.h"

+

+/**

+ * Performs a context switch between two threads.

+ * @param otp the thread to be switched out

+ * @param ntp the thread to be switched in
+ */

+__attribute__((used))

+static void __dummy(Thread *otp, Thread *ntp) {

+  (void)otp; (void)ntp;

+  asm volatile (".globl @port_switch@8                          \n\t" \

+                "@port_switch@8:                                \n\t" \

+                "push    %ebp                                   \n\t" \

+                "push    %esi                                   \n\t" \

+                "push    %edi                                   \n\t" \

+                "push    %ebx                                   \n\t" \

+                "movl    %esp, 16(%ecx)                         \n\t" \

+                "movl    16(%edx), %esp                         \n\t" \

+                "pop     %ebx                                   \n\t" \

+                "pop     %edi                                   \n\t" \

+                "pop     %esi                                   \n\t" \

+                "pop     %ebp                                   \n\t" \

+                "ret");

+}

+

+/**

+ * Halts the system. In this implementation it just exits the simulation.
+ */

+__attribute__((fastcall))

+void port_halt(void) {

+

+  exit(2);

+}

+

+/**

+ * Threads return point, it just invokes @p chThdExit().
+ */

+void threadexit(void) {

+

+  asm volatile ("push    %eax                                   \n\t" \

+                "call    _chThdExit");

+}

+

+/** @} */

diff --git a/os/ports/GCC/SIMIA32/chcore.h b/os/ports/GCC/SIMIA32/chcore.h
new file mode 100644
index 000000000..5e2d38f84
--- /dev/null
+++ b/os/ports/GCC/SIMIA32/chcore.h
@@ -0,0 +1,210 @@
+/*

+    ChibiOS/RT - Copyright (C) 2006-2007 Giovanni Di Sirio.

+

+    This file is part of ChibiOS/RT.

+

+    ChibiOS/RT 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 3 of the License, or

+    (at your option) any later version.

+

+    ChibiOS/RT 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, see <http://www.gnu.org/licenses/>.

+*/

+

+/**

+ * @addtogroup SIMIA32_CORE

+ * @{

+ */

+

+#ifndef _CHCORE_H_

+#define _CHCORE_H_

+

+/**

+ * Macro defining the a simulated architecture into Win32.

+ */

+#define CH_ARCHITECTURE_WIN32SIM

+

+/**

+ * Name of the implemented architecture.

+ */

+#define CH_ARCHITECTURE_NAME "WIN32 Simulator"

+

+/**

+ * 32 bit stack alignment.

+ */

+typedef uint32_t stkalign_t;

+

+/**

+ * Generic x86 register.
+ */

+typedef void *regx86;

+

+/**

+ * Interrupt saved context.

+ * This structure represents the stack frame saved during a preemption-capable

+ * interrupt handler.

+ */

+struct extctx {

+};

+

+/**

+ * System saved context.

+ * @note In this demo the floating point registers are not saved.

+ */

+struct intctx {

+  regx86  ebx;

+  regx86  edi;

+  regx86  esi;

+  regx86  ebp;

+  regx86  eip;

+};

+

+/**

+ * Platform dependent part of the @p Thread structure.

+ * This structure usually contains just the saved stack pointer defined as a

+ * pointer to a @p intctx structure.

+ */

+struct context {

+  struct intctx volatile *esp;

+};

+

+#define APUSH(p, a) (p) -= sizeof(void *), *(void **)(p) = (void*)(a)

+

+/**

+ * Platform dependent part of the @p chThdInit() API.

+ * This code usually setup the context switching frame represented by a

+ * @p intctx structure.

+ */

+#define SETUP_CONTEXT(workspace, wsize, pf, arg) {                      \

+  uint8_t *esp = (uint8_t *)workspace + wsize;                          \

+  APUSH(esp, arg);                                                      \

+  APUSH(esp, threadexit);                                               \

+  esp -= sizeof(struct intctx);                                         \

+  ((struct intctx *)esp)->eip = pf;                                     \

+  ((struct intctx *)esp)->ebx = 0;                                      \

+  ((struct intctx *)esp)->edi = 0;                                      \

+  ((struct intctx *)esp)->esi = 0;                                      \

+  ((struct intctx *)esp)->ebp = 0;                                      \

+  tp->p_ctx.esp = (struct intctx *)esp;                                 \

+}

+

+/**

+ * Stack size for the system idle thread.

+ */

+#ifndef IDLE_THREAD_STACK_SIZE

+#define IDLE_THREAD_STACK_SIZE 256

+#endif

+

+/**

+ * Per-thread stack overhead for interrupts servicing, it is used in the

+ * calculation of the correct working area size.

+ * It requires stack space because the simulated "interrupt handlers" invoke

+ * Win32 APIs inside so it better have a lot of space.

+ */

+#ifndef INT_REQUIRED_STACK

+#define INT_REQUIRED_STACK 16384

+#endif

+

+/**

+ * Enforces a correct alignment for a stack area size value.

+ */

+#define STACK_ALIGN(n) ((((n) - 1) | (sizeof(stkalign_t) - 1)) + 1)

+

+ /**

+  * Computes the thread working area global size.

+  */

+#define THD_WA_SIZE(n) STACK_ALIGN(sizeof(Thread) +                     \

+                                   sizeof(void *) * 2 +                 \

+                                   sizeof(struct intctx) +              \

+                                   sizeof(struct extctx) +              \

+                                  (n) + (INT_REQUIRED_STACK))

+

+/**

+ * Macro used to allocate a thread working area aligned as both position and

+ * size.

+ */

+#define WORKING_AREA(s, n) stkalign_t s[THD_WA_SIZE(n) / sizeof(stkalign_t)];

+

+/**

+ * IRQ prologue code, inserted at the start of all IRQ handlers enabled to

+ * invoke system APIs.
+ */

+#define PORT_IRQ_PROLOGUE()

+

+/**

+ * IRQ epilogue code, inserted at the end of all IRQ handlers enabled to

+ * invoke system APIs.

+ */

+#define PORT_IRQ_EPILOGUE()

+

+/**

+ * IRQ handler function declaration.

+ */

+#define PORT_IRQ_HANDLER(id) void id(void)

+

+/**

+ * Simulator initialization.

+ */

+#define port_init()

+

+/**

+ * Does nothing in this simulator.

+ */

+#define port_lock()

+

+/**

+ * Does nothing in this simulator.

+ */

+#define port_unlock()

+

+/**

+ * Does nothing in this simulator.

+ */

+#define port_lock_from_isr()

+

+/**

+ * Does nothing in this simulator.

+ */

+#define port_unlock_from_isr()

+

+/**

+ * Does nothing in this simulator.

+ */

+#define port_disable()

+

+/**

+ * Does nothing in this simulator.

+ */

+#define port_suspend()

+

+/**

+ * Does nothing in this simulator.

+ */

+#define port_enable()

+

+/**

+ * In the simulator this does a polling pass on the simulated interrupt

+ * sources.

+ */

+#define port_wait_for_interrupt() ChkIntSources()

+

+#ifdef __cplusplus

+extern "C" {

+#endif

+  __attribute__((fastcall)) void port_switch(Thread *otp, Thread *ntp);

+  __attribute__((fastcall)) void port_halt(void);

+  void threadexit(void);

+  void ChkIntSources(void);

+#ifdef __cplusplus

+}

+#endif

+

+#endif /* _CHCORE_H_ */

+

+/** @} */

diff --git a/os/ports/GCC/SIMIA32/chtypes.h b/os/ports/GCC/SIMIA32/chtypes.h
new file mode 100644
index 000000000..354da269e
--- /dev/null
+++ b/os/ports/GCC/SIMIA32/chtypes.h
@@ -0,0 +1,47 @@
+/*

+    ChibiOS/RT - Copyright (C) 2006-2007 Giovanni Di Sirio.

+

+    This file is part of ChibiOS/RT.

+

+    ChibiOS/RT 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 3 of the License, or

+    (at your option) any later version.

+

+    ChibiOS/RT 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, see <http://www.gnu.org/licenses/>.

+*/

+

+#ifndef _CHTYPES_H_

+#define _CHTYPES_H_

+

+#define __need_NULL

+#define __need_size_t

+#define __need_ptrdiff_t

+#include <stddef.h>

+

+#if !defined(_STDINT_H) && !defined(__STDINT_H_)

+#include <stdint.h>

+#endif

+

+typedef int8_t          bool_t;

+typedef uint8_t         tmode_t;

+typedef uint8_t         tstate_t;

+typedef uint32_t        tprio_t;

+typedef int32_t         msg_t;

+typedef int32_t         eventid_t;

+typedef uint32_t        eventmask_t;

+typedef uint32_t        systime_t;

+typedef int32_t         cnt_t;

+

+#define INLINE      inline

+#define PACK_STRUCT_STRUCT __attribute__((packed))

+#define PACK_STRUCT_BEGIN

+#define PACK_STRUCT_END

+

+#endif /* _CHTYPES_H_ */

diff --git a/os/ports/GCC/SIMIA32/port.mk b/os/ports/GCC/SIMIA32/port.mk
new file mode 100644
index 000000000..8f053abc4
--- /dev/null
+++ b/os/ports/GCC/SIMIA32/port.mk
@@ -0,0 +1,6 @@
+# List of the ChibiOS/RT SIMIA32 port files.

+PORTSRC = ${CHIBIOS}/os/ports/GCC/SIMIA32/chcore.c

+

+PORTASM = 

+

+PORTINC = ${CHIBIOS}/os/ports/GCC/SIMIA32