📄 h8300h.c
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<HTML><HEAD><TITLE>/home/asysweb/public_html/cortex/ports/h8300h/src/h8300h.c</TITLE></HEAD><BODY><pre><font color="#6920ac">/*************************************************************************/</font><font color="#6920ac">/* */</font><font color="#6920ac">/* Copyright (c) 1997-1999 Australian Real Time Embedded Systems */</font><font color="#6920ac">/* */</font><font color="#6920ac">/* PROPRIETARY RIGHTS of Australian Real Time Embedded Systems */</font><font color="#6920ac">/* are involved in the subject matter of this material. All reproduction,*/</font><font color="#6920ac">/* manufacturing, use, and sales rights pertaining to this subject matter*/</font><font color="#6920ac">/* are governed by the license agreement. The recipient of this software */</font><font color="#6920ac">/* implicitly accepts the terms of the license. */</font><font color="#6920ac">/* */</font><font color="#6920ac">/*************************************************************************/</font><font color="#6920ac">/************************************************************************* * * FILE NAME * * h8300h.c * * SYSTEM COMPONENT * * Hitachi H8/300H Micro-controller Family * * DESCRIPTION * * This file contains services specific for Hitachi H8/300H * Micro-controller Family * * SCCS HISTORY * * @(#)h8300h.c 1.25, 03/06/00, 19:32:30 * * SERVICES * * Services for hardware interrupt manager * --------------------------------------- * hrdi_IsIntrMaskBitAllocated * hrdi_EnableVector * hrdi_DisableVector * hrdi_Mask * hrdi_Disable * hrdi_Enable * hrdi_SetLisrIntrMask * hrdi_IsNested * hrdi_MakeLisrStackFrame * hrdi_PrepareStack * hrdi_CheckStack * hrdi_RegisterDISR * hrdi_UnregisterDISR * hrdi_RegisterDispatcher * hrdi_UnregisterDispatcher * * Services for software interrupt manager * --------------------------------------- * sfti_MakeHisrStackFrame * sfti_CheckStack * sfti_PrepareStack * * Services for thread control component * ------------------------------------- * thrd_MakeThreadStackFrame * thrd_CheckStack * thrd_MaxSP * thrd_AdjustMaxSP * thrd_StackUsage * thrd_GetStackFrames * thrd_Idlethread * thrd_GetStackFrameRegs * * GDB monitor support * ------------------- * gdbm_GetRegisters * * Services for System Timer * ------------------------- * tick_LISR * tick_SetupSystemTimer * tick_ClocksSinceReset * * Others * ------ * port_Init * port_Fatal * port_Abort * port_Exit * port_InitSerial * port_Putc * * AUTHOR * * Vadim N. Azarovsky * * CREATED * * 14-Feb-1998 by Vadim N. Azarovsky * * REVISION HISTORY * * NAME DATE REMARKS * **************************************************************************/</font><b><font color='DarkGreen'>#include</font></b> <a href="env_defs.h.FIND-INC"><font color="blue">"env_defs.h"</font></a><b><font color='DarkGreen'>#include</font></b> <a href="crt_defs.h.FIND-INC"><font color="blue">"crt_defs.h"</font></a><b><font color='DarkGreen'>#if</font></b><font color="maroon"> (CRTX_CPU_FAMILY==CRTX_H8300H)</font><b><font color='DarkGreen'>#include</font></b> <a href="ass_defs.h.FIND-INC"><font color="blue">"ass_defs.h"</font></a><b><font color='DarkGreen'>#include</font></b> <a href="hwi_priv.h.FIND-INC"><font color="blue">"hwi_priv.h"</font></a><b><font color='DarkGreen'>#include</font></b> <a href="swi_priv.h.FIND-INC"><font color="blue">"swi_priv.h"</font></a><b><font color='DarkGreen'>#include</font></b> <a href="thr_priv.h.FIND-INC"><font color="blue">"thr_priv.h"</font></a><b><font color='DarkGreen'>#include</font></b> <a href="tck_priv.h.FIND-INC"><font color="blue">"tck_priv.h"</font></a><b><font color='DarkGreen'>#include</font></b> <a href="sys_priv.h.FIND-INC"><font color="blue">"sys_priv.h"</font></a><font color="#6920ac">/* Returns true if interrupt mask bit for specified source is * allocated. Implementation is platform specific. This service is * useful when several interrupt sources mapped into single intrrupt * mask bit. */</font><font size="+1"><i>crtx_Bool_t</i> <b><font color="azure1"><a name="hrdi_IsIntrMaskBitAllocated">hrdi_IsIntrMaskBitAllocated</a></font></b>( <i>hrdi_Vector_t</i> Vector_a){</font><font color="#6920ac">/********************* * LOCAL VARIABLES * *********************/</font> <font color="#6920ac">/* None */</font><font color="#6920ac">/********************* * PROCEDURE LOGIC * *********************/</font> <a href="CRTX_ASSERT.FIND-DEF">CRTX_ASSERT</a>((Vector_a >= 0) && (Vector_a < <a href="HRDI_INTR_VECTORS.FIND-DEF">HRDI_INTR_VECTORS</a>)) <b>if</b> (Vector_a>=<a href="H83H_VECTOR_ITU0_A.FIND-DEF">H83H_VECTOR_ITU0_A</a> && Vector_a<=<a href="H83H_VECTOR_ITU4_OVER.FIND-DEF">H83H_VECTOR_ITU4_OVER</a>) { <font color="#6920ac">/* Integrated Timer Unit */</font> <b>if</b> (Vector_a >= <a href="H83H_VECTOR_ITU0_A.FIND-DEF">H83H_VECTOR_ITU0_A</a> && Vector_a <= <a href="H83H_VECTOR_ITU0_OVER.FIND-DEF">H83H_VECTOR_ITU0_OVER</a>) { <font color="#6920ac">/* ITU Channel 0 */</font> <b>if</b> (<a href="vbit_Get.FIND-FUNC">vbit_Get</a>(&hrdi_Environ_g.RegVectors, <a href="H83H_VECTOR_ITU0_A.FIND-DEF">H83H_VECTOR_ITU0_A</a>) || <a href="vbit_Get.FIND-FUNC">vbit_Get</a>(&hrdi_Environ_g.RegVectors, <a href="H83H_VECTOR_ITU0_B.FIND-DEF">H83H_VECTOR_ITU0_B</a>) || <a href="vbit_Get.FIND-FUNC">vbit_Get</a>(&hrdi_Environ_g.RegVectors, <a href="H83H_VECTOR_ITU0_OVER.FIND-DEF">H83H_VECTOR_ITU0_OVER</a>)) { <b>return</b> <a href="CRTX_TRUE.FIND-DEF">CRTX_TRUE</a>; } } <b>else</b> <b>if</b> (Vector_a >= <a href="H83H_VECTOR_ITU1_A.FIND-DEF">H83H_VECTOR_ITU1_A</a> && Vector_a <= <a href="H83H_VECTOR_ITU1_OVER.FIND-DEF">H83H_VECTOR_ITU1_OVER</a>) { <font color="#6920ac">/* ITU Channel 1 */</font> <b>if</b> (<a href="vbit_Get.FIND-FUNC">vbit_Get</a>(&hrdi_Environ_g.RegVectors, <a href="H83H_VECTOR_ITU1_A.FIND-DEF">H83H_VECTOR_ITU1_A</a>) || <a href="vbit_Get.FIND-FUNC">vbit_Get</a>(&hrdi_Environ_g.RegVectors, <a href="H83H_VECTOR_ITU1_B.FIND-DEF">H83H_VECTOR_ITU1_B</a>) || <a href="vbit_Get.FIND-FUNC">vbit_Get</a>(&hrdi_Environ_g.RegVectors, <a href="H83H_VECTOR_ITU1_OVER.FIND-DEF">H83H_VECTOR_ITU1_OVER</a>)) { <b>return</b> <a href="CRTX_TRUE.FIND-DEF">CRTX_TRUE</a>; } } <b>else</b> <b>if</b> (Vector_a >= <a href="H83H_VECTOR_ITU2_A.FIND-DEF">H83H_VECTOR_ITU2_A</a> && Vector_a <= <a href="H83H_VECTOR_ITU2_OVER.FIND-DEF">H83H_VECTOR_ITU2_OVER</a>) { <font color="#6920ac">/* ITU Channel 2 */</font> <b>if</b> (<a href="vbit_Get.FIND-FUNC">vbit_Get</a>(&hrdi_Environ_g.RegVectors, <a href="H83H_VECTOR_ITU2_A.FIND-DEF">H83H_VECTOR_ITU2_A</a>) || <a href="vbit_Get.FIND-FUNC">vbit_Get</a>(&hrdi_Environ_g.RegVectors, <a href="H83H_VECTOR_ITU2_B.FIND-DEF">H83H_VECTOR_ITU2_B</a>) || <a href="vbit_Get.FIND-FUNC">vbit_Get</a>(&hrdi_Environ_g.RegVectors, <a href="H83H_VECTOR_ITU2_OVER.FIND-DEF">H83H_VECTOR_ITU2_OVER</a>)) { <b>return</b> <a href="CRTX_TRUE.FIND-DEF">CRTX_TRUE</a>; } } <b>else</b> <b>if</b> (Vector_a >= <a href="H83H_VECTOR_ITU3_A.FIND-DEF">H83H_VECTOR_ITU3_A</a> && Vector_a <= <a href="H83H_VECTOR_ITU3_OVER.FIND-DEF">H83H_VECTOR_ITU3_OVER</a>) { <font color="#6920ac">/* ITU Channel 3 */</font> <b>if</b> (<a href="vbit_Get.FIND-FUNC">vbit_Get</a>(&hrdi_Environ_g.RegVectors, <a href="H83H_VECTOR_ITU3_A.FIND-DEF">H83H_VECTOR_ITU3_A</a>) || <a href="vbit_Get.FIND-FUNC">vbit_Get</a>(&hrdi_Environ_g.RegVectors, <a href="H83H_VECTOR_ITU3_B.FIND-DEF">H83H_VECTOR_ITU3_B</a>) || <a href="vbit_Get.FIND-FUNC">vbit_Get</a>(&hrdi_Environ_g.RegVectors, <a href="H83H_VECTOR_ITU3_OVER.FIND-DEF">H83H_VECTOR_ITU3_OVER</a>)) { <b>return</b> <a href="CRTX_TRUE.FIND-DEF">CRTX_TRUE</a>; } } <b>else</b> <b>if</b> (Vector_a >= <a href="H83H_VECTOR_ITU4_A.FIND-DEF">H83H_VECTOR_ITU4_A</a> && Vector_a <= <a href="H83H_VECTOR_ITU4_OVER.FIND-DEF">H83H_VECTOR_ITU4_OVER</a>) { <font color="#6920ac">/* ITU Channel 4 */</font> <b>if</b> (<a href="vbit_Get.FIND-FUNC">vbit_Get</a>(&hrdi_Environ_g.RegVectors, <a href="H83H_VECTOR_ITU4_A.FIND-DEF">H83H_VECTOR_ITU4_A</a>) || <a href="vbit_Get.FIND-FUNC">vbit_Get</a>(&hrdi_Environ_g.RegVectors, <a href="H83H_VECTOR_ITU4_B.FIND-DEF">H83H_VECTOR_ITU4_B</a>) || <a href="vbit_Get.FIND-FUNC">vbit_Get</a>(&hrdi_Environ_g.RegVectors, <a href="H83H_VECTOR_ITU4_OVER.FIND-DEF">H83H_VECTOR_ITU4_OVER</a>)) { <b>return</b> <a href="CRTX_TRUE.FIND-DEF">CRTX_TRUE</a>; } } } <b>else</b> { <font color="#6920ac">/* All other interrupt sources have individual enable bits */</font> <b>return</b> (<i>crtx_Boolean_t</i>)<a href="vbit_Get.FIND-FUNC">vbit_Get</a>(&hrdi_Environ_g.RegVectors, Vector_a); } <b>return</b> <a href="CRTX_FALSE.FIND-DEF">CRTX_FALSE</a>;<font color="#6920ac">/************************ * EXCEPTION HANDLING * ************************/</font> <font color="#6920ac">/* None */</font>}<font color="#6920ac">/* * hrdi_RegWatchdog */</font><font size="+1"><i>crtx_Void_t</i> <b><font color="azure1"><a name="hrdi_RegWatchdog">hrdi_RegWatchdog</a></font></b>( <i>crtx_Int_t</i> Level_a __attribute__((__unused__))){</font> <font color="#6920ac">/* there is no interrupt enable/disable flag */</font> <b>return</b>;}<font color="#6920ac">/* * hrdi_RegRefresh */</font><font size="+1"><i>crtx_Void_t</i> <b><font color="azure1"><a name="hrdi_RegRefresh">hrdi_RegRefresh</a></font></b>( <i>crtx_Int_t</i> Level_a __attribute__((__unused__))){</font> <a href="H83H_RTMCSR.FIND-DEF">H83H_RTMCSR</a> |= 0x40; <font color="#6920ac">/* set interrupt enable flag */</font> <b>return</b>;}<font color="#6920ac">/* * hrdi_RegITU */</font><font size="+1"><i>crtx_Void_t</i> <b><font color="azure1"><a name="hrdi_RegITU">hrdi_RegITU</a></font></b>( <i>crtx_Int_t</i> Vector_a, <i>crtx_Int_t</i> Level_a __attribute__((__unused__))){</font> <b>switch</b>(Vector_a) { <b>case</b> <a href="H83H_VECTOR_ITU0_A.FIND-DEF">H83H_VECTOR_ITU0_A</a>: <a href="H83H_TIER0.FIND-DEF">H83H_TIER0</a> |= 0x01; <b>break</b>; <b>case</b> <a href="H83H_VECTOR_ITU0_B.FIND-DEF">H83H_VECTOR_ITU0_B</a>: <a href="H83H_TIER0.FIND-DEF">H83H_TIER0</a> |= 0x02; <b>break</b>; <b>case</b> <a href="H83H_VECTOR_ITU0_OVER.FIND-DEF">H83H_VECTOR_ITU0_OVER</a>: <a href="H83H_TIER0.FIND-DEF">H83H_TIER0</a> |= 0x04; <b>break</b>; <b>case</b> <a href="H83H_VECTOR_ITU1_A.FIND-DEF">H83H_VECTOR_ITU1_A</a>: <a href="H83H_TIER1.FIND-DEF">H83H_TIER1</a> |= 0x01; <b>break</b>; <b>case</b> <a href="H83H_VECTOR_ITU1_B.FIND-DEF">H83H_VECTOR_ITU1_B</a>: <a href="H83H_TIER1.FIND-DEF">H83H_TIER1</a> |= 0x02; <b>break</b>; <b>case</b> <a href="H83H_VECTOR_ITU1_OVER.FIND-DEF">H83H_VECTOR_ITU1_OVER</a>: <a href="H83H_TIER1.FIND-DEF">H83H_TIER1</a> |= 0x04; <b>break</b>; <b>case</b> <a href="H83H_VECTOR_ITU2_A.FIND-DEF">H83H_VECTOR_ITU2_A</a>: <a href="H83H_TIER2.FIND-DEF">H83H_TIER2</a> |= 0x01; <b>break</b>; <b>case</b> <a href="H83H_VECTOR_ITU2_B.FIND-DEF">H83H_VECTOR_ITU2_B</a>: <a href="H83H_TIER2.FIND-DEF">H83H_TIER2</a> |= 0x02; <b>break</b>; <b>case</b> <a href="H83H_VECTOR_ITU2_OVER.FIND-DEF">H83H_VECTOR_ITU2_OVER</a>: <a href="H83H_TIER2.FIND-DEF">H83H_TIER2</a> |= 0x04; <b>break</b>; <b>case</b> <a href="H83H_VECTOR_ITU3_A.FIND-DEF">H83H_VECTOR_ITU3_A</a>: <a href="H83H_TIER3.FIND-DEF">H83H_TIER3</a> |= 0x01; <b>break</b>; <b>case</b> <a href="H83H_VECTOR_ITU3_B.FIND-DEF">H83H_VECTOR_ITU3_B</a>: <a href="H83H_TIER3.FIND-DEF">H83H_TIER3</a> |= 0x02; <b>break</b>; <b>case</b> <a href="H83H_VECTOR_ITU3_OVER.FIND-DEF">H83H_VECTOR_ITU3_OVER</a>: <a href="H83H_TIER3.FIND-DEF">H83H_TIER3</a> |= 0x04; <b>break</b>; <b>case</b> <a href="H83H_VECTOR_ITU4_A.FIND-DEF">H83H_VECTOR_ITU4_A</a>: <a href="H83H_TIER4.FIND-DEF">H83H_TIER4</a> |= 0x01; <b>break</b>; <b>case</b> <a href="H83H_VECTOR_ITU4_B.FIND-DEF">H83H_VECTOR_ITU4_B</a>: <a href="H83H_TIER4.FIND-DEF">H83H_TIER4</a> |= 0x02; <b>break</b>; <b>case</b> <a href="H83H_VECTOR_ITU4_OVER.FIND-DEF">H83H_VECTOR_ITU4_OVER</a>: <a href="H83H_TIER4.FIND-DEF">H83H_TIER4</a> |= 0x04; <b>break</b>; } <b>return</b>;}<font color="#6920ac">/* * hrdi_RegDMA */</font><font size="+1">⌨️ 快捷键说明
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