Diff: rtx_ca/HAL_CA.c

Revision:

49:77c8e4604045

Parent:

48:e9a2c7cb57a4

Child:

50:64a5202c3676

--- a/rtx_ca/HAL_CA.c	Thu Nov 06 11:00:33 2014 +0000
+++ /dev/null	Thu Jan 01 00:00:00 1970 +0000
@@ -1,126 +0,0 @@
-/*----------------------------------------------------------------------------
- *      RL-ARM - RTX
- *----------------------------------------------------------------------------
- *      Name:    HAL_CA.C
- *      Purpose: Hardware Abstraction Layer for Cortex-A
- *      Rev.:
- *----------------------------------------------------------------------------
- *
- * Copyright (c) 2012 ARM Limited
- * All rights reserved.
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions are met:
- *  - Redistributions of source code must retain the above copyright
- *    notice, this list of conditions and the following disclaimer.
- *  - 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.
- *  - Neither the name of ARM  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 COPYRIGHT HOLDERS AND 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.
- *---------------------------------------------------------------------------*/
-
-#include "rt_TypeDef.h"
-#include "RTX_Config.h"
-#include "rt_HAL_CA.h"
-
-/*--------------------------- os_init_context -------------------------------*/
-
-void rt_init_stack (P_TCB p_TCB, FUNCP task_body) {
-  /* Prepare TCB and saved context for a first time start of a task. */
-  U32 *stk,i,size;
-
-  /* Prepare a complete interrupt frame for first task start */
-  size = p_TCB->priv_stack >> 2;
-  if (size == 0) {
-    size = (U16)os_stackinfo >> 2;
-  }
-  /* Write to the top of stack. */
-  stk = &p_TCB->stack[size];
-
-  /* Auto correct to 8-byte ARM stack alignment. */
-  if ((U32)stk & 0x04) {
-    stk--;
-  }
-
-  stk -= 16;
-
-  /* Initial PC and default CPSR */
-  stk[14] = (U32)task_body;
-  /* Task run mode is inherited from the startup file. */
-  /*  (non-privileged USER or privileged SYSTEM mode)  */
-  stk[15] = (os_flags & 1) ? INIT_CPSR_SYS : INIT_CPSR_USER;
-  /* Set T-bit if task function in Thumb mode. */
-  if ((U32)task_body & 1) {
-    stk[15] |= CPSR_T_BIT;
-  }
-  /* Assign a void pointer to R0. */
-  stk[8]  = (U32)p_TCB->msg;
-  /* Clear R1-R12,LR registers. */
-  for (i = 0; i < 8; i++) {
-    stk[i] = 0;
-  }
-  for (i = 9; i < 14; i++) {
-    stk[i] = 0;
-  }
-
-  /* Initial Task stack pointer. */
-  p_TCB->tsk_stack = (U32)stk;
-
-  /* Task entry point. */
-  p_TCB->ptask = task_body;
-
-  /* Set a magic word for checking of stack overflow. */
-  p_TCB->stack[0] = MAGIC_WORD;
-}
-
-
-/*--------------------------- rt_ret_val ----------------------------------*/
-
-static __inline U32 *rt_ret_regs (P_TCB p_TCB) {
-  /* Get pointer to task return value registers (R0..R3) in Stack */
-#if (__TARGET_FPU_VFP)
-  if (p_TCB->stack_frame & 0x2) {
-    /* Extended Stack Frame: S0-31,FPSCR,Reserved,R4-R11,R0-R3,R12,LR,PC,xPSR */
-    return (U32 *)(p_TCB->tsk_stack + 8*4 + 34*4);
-  } else {
-    /* Basic Stack Frame: R4-R11,R0-R3,R12,LR,PC,xPSR */
-    return (U32 *)(p_TCB->tsk_stack + 8*4);
-  }
-#else
-  /* Stack Frame: R4-R11,R0-R3,R12,LR,PC,xPSR */
-  return (U32 *)(p_TCB->tsk_stack + 8*4);
-#endif
-}
-
-void rt_ret_val (P_TCB p_TCB, U32 v0) {
-  U32 *ret;
-
-  ret = rt_ret_regs(p_TCB);
-  ret[0] = v0;
-}
-
-void rt_ret_val2(P_TCB p_TCB, U32 v0, U32 v1) {
-  U32 *ret;
-
-  ret = rt_ret_regs(p_TCB);
-  ret[0] = v0;
-  ret[1] = v1;
-}
-
-
-/*----------------------------------------------------------------------------
- * end of file
- *---------------------------------------------------------------------------*/