Diff: rtx/TARGET_ARM7/rt_HAL_CM.h

Revision:

0:4a2c9c1f5b9e

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/rtx/TARGET_ARM7/rt_HAL_CM.h	Mon Mar 15 14:18:11 2021 +0000
@@ -0,0 +1,216 @@
+/*----------------------------------------------------------------------------
+ *      RL-ARM - RTX
+ *----------------------------------------------------------------------------
+ *      Name:    RT_HAL_CM.H
+ *      Purpose: Hardware Abstraction Layer for Cortex-M definitions
+ *      Rev.:    V4.60
+ *----------------------------------------------------------------------------
+ *
+ * Copyright (c) 1999-2009 KEIL, 2009-2015 ARM Germany GmbH
+ * 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 "cmsis.h"
+/* Definitions */
+#define INITIAL_xPSR    0x10000000
+#define DEMCR_TRCENA    0x01000000
+#define ITM_ITMENA      0x00000001
+#define MAGIC_WORD      0xE25A2EA5
+
+#define SYS_TICK_IRQn TIMER0_IRQn
+
+extern void rt_set_PSP (U32 stack);
+extern U32  rt_get_PSP (void);
+extern void os_set_env (void);
+extern void SysTick_Handler (void);
+extern void *_alloc_box (void *box_mem);
+extern int  _free_box (void *box_mem, void *box);
+
+extern void rt_init_stack (P_TCB p_TCB, FUNCP task_body);
+extern void rt_ret_val  (P_TCB p_TCB, U32 v0);
+extern void rt_ret_val2 (P_TCB p_TCB, U32 v0, U32 v1);
+
+extern void dbg_init (void);
+extern void dbg_task_notify (P_TCB p_tcb, BOOL create);
+extern void dbg_task_switch (U32 task_id);
+
+
+#if defined (__CC_ARM)          /* ARM Compiler */
+
+#if ((__TARGET_ARCH_7_M || __TARGET_ARCH_7E_M) && !NO_EXCLUSIVE_ACCESS)
+ #define __USE_EXCLUSIVE_ACCESS
+#else
+ #undef  __USE_EXCLUSIVE_ACCESS
+#endif
+
+#elif defined (__GNUC__)        /* GNU Compiler */
+
+#undef  __USE_EXCLUSIVE_ACCESS
+
+#if defined (__CORTEX_M0) || defined (__CORTEX_M0PLUS)
+#define __TARGET_ARCH_6S_M 1
+#else
+#define __TARGET_ARCH_6S_M 0
+#endif
+
+#if defined (__VFP_FP__) && !defined(__SOFTFP__)
+#define __TARGET_FPU_VFP 1
+#else
+#define __TARGET_FPU_VFP 0
+#endif
+
+#define __inline inline
+#define __weak   __attribute__((weak))
+
+
+#elif defined (__ICCARM__)      /* IAR Compiler */
+
+#undef  __USE_EXCLUSIVE_ACCESS
+
+#if (__CORE__ == __ARM6M__)
+#define __TARGET_ARCH_6S_M 1
+#else
+#define __TARGET_ARCH_6S_M 0
+#endif
+
+#if defined __ARMVFP__
+#define __TARGET_FPU_VFP 1
+#else
+#define __TARGET_FPU_VFP 0
+#endif
+
+#define __inline inline
+
+#endif
+
+
+/* NVIC registers */
+
+#define OS_PEND_IRQ()   NVIC_PendIRQ(SYS_TICK_IRQn)
+#define OS_PENDING      NVIC_PendingIRQ(SYS_TICK_IRQn)
+#define OS_UNPEND(fl)   NVIC_UnpendIRQ(SYS_TICK_IRQn)
+#define OS_PEND(fl,p)   NVIC_PendIRQ(SYS_TICK_IRQn)
+#define OS_LOCK()       NVIC_DisableIRQ(SYS_TICK_IRQn)
+#define OS_UNLOCK()     NVIC_EnableIRQ(SYS_TICK_IRQn)
+
+#define OS_X_PENDING    NVIC_PendingIRQ(SYS_TICK_IRQn)
+#define OS_X_UNPEND(fl) NVIC_UnpendIRQ(SYS_TICK_IRQn)
+#define OS_X_PEND(fl,p) NVIC_PendIRQ(SYS_TICK_IRQn)
+
+#define OS_X_INIT(n)    NVIC_EnableIRQ(n)
+#define OS_X_LOCK(n)    NVIC_DisableIRQ(n)
+#define OS_X_UNLOCK(n)  NVIC_EnableIRQ(n)
+
+/* Variables */
+extern BIT dbg_msg;
+
+/* Functions */
+#ifdef __USE_EXCLUSIVE_ACCESS
+ #define rt_inc(p)     while(__strex((__ldrex(p)+1),p))
+ #define rt_dec(p)     while(__strex((__ldrex(p)-1),p))
+#else
+ #define rt_inc(p)     __disable_irq();(*p)++;__enable_irq();
+ #define rt_dec(p)     __disable_irq();(*p)--;__enable_irq();
+#endif
+
+__inline static U32 rt_inc_qi (U32 size, U8 *count, U8 *first) {
+  U32 cnt,c2;
+#ifdef __USE_EXCLUSIVE_ACCESS
+  do {
+    if ((cnt = __ldrex(count)) == size) {
+      __clrex();
+      return (cnt); }
+  } while (__strex(cnt+1, count));
+  do {
+    c2 = (cnt = __ldrex(first)) + 1;
+    if (c2 == size) c2 = 0;
+  } while (__strex(c2, first));
+#else
+  __disable_irq();
+  if ((cnt = *count) < size) {
+    *count = cnt+1;
+    c2 = (cnt = *first) + 1;
+    if (c2 == size) c2 = 0;
+    *first = c2;
+  }
+  __enable_irq ();
+#endif
+  return (cnt);
+}
+
+__inline static void rt_systick_init (void) {
+#if SYS_TICK_IRQn == TIMER0_IRQn
+ #define SYS_TICK_TIMER  LPC_TIM0
+ LPC_SC->PCONP |= (1 << PCTIM0);
+ LPC_SC->PCLKSEL0 = (LPC_SC->PCLKSEL0 & (~(1<<3))) | (1<<2); //PCLK == CPUCLK
+#elif SYS_TICK_IRQn == TIMER1_IRQn
+ #define SYS_TICK_TIMER LPC_TIM1
+ LPC_SC->PCONP |= (1 << PCTIM1);
+ LPC_SC->PCLKSEL0 = (LPC_SC->PCLKSEL0 & (~(1<<5))) | (1<<4); //PCLK == CPUCLK
+#elif SYS_TICK_IRQn == TIMER2_IRQn
+ #define SYS_TICK_TIMER LPC_TIM2
+ LPC_SC->PCONP |= (1 << PCTIM2);
+ LPC_SC->PCLKSEL1 = (LPC_SC->PCLKSEL1 & (~(1<<13))) | (1<<12); //PCLK == CPUCLK
+#else
+ #define SYS_TICK_TIMER LPC_TIM3
+ LPC_SC->PCONP |= (1 << PCTIM3);
+ LPC_SC->PCLKSEL1 = (LPC_SC->PCLKSEL1 & (~(1<<15))) | (1<<14); //PCLK == CPUCLK
+#endif
+
+  // setup Timer to count forever
+  //interrupt_reg
+  SYS_TICK_TIMER->TCR = 2; // reset & disable timer 0
+  SYS_TICK_TIMER->TC = os_trv;
+  SYS_TICK_TIMER->PR = 0; // set the prescale divider
+  //Reset of TC and Interrupt when MR3  MR2 matches TC
+  SYS_TICK_TIMER->MCR = (1 << 9) |(1 << 10); //TMCR_MR3_R_Msk | TMCR_MR3_I_Msk
+  SYS_TICK_TIMER->MR3 = os_trv; // match registers
+  SYS_TICK_TIMER->CCR = 0; // disable compare registers
+  SYS_TICK_TIMER->EMR = 0; // disable external match register
+  // initialize the interrupt vector
+  NVIC_SetVector(SYS_TICK_IRQn, (uint32_t)&SysTick_Handler);
+  SYS_TICK_TIMER->TCR = 1; // enable timer 0
+}
+
+__inline static void rt_svc_init (void) {
+// TODO: add svcInit
+
+}
+
+#ifdef DBG_MSG
+#define DBG_INIT() dbg_init()
+#define DBG_TASK_NOTIFY(p_tcb,create) if (dbg_msg) dbg_task_notify(p_tcb,create)
+#define DBG_TASK_SWITCH(task_id)      if (dbg_msg && (os_tsk.new_tsk != os_tsk.run)) \
+                                                   dbg_task_switch(task_id)
+#else
+#define DBG_INIT()
+#define DBG_TASK_NOTIFY(p_tcb,create)
+#define DBG_TASK_SWITCH(task_id)
+#endif
+
+/*----------------------------------------------------------------------------
+ * end of file
+ *---------------------------------------------------------------------------*/
+