Split plain ARMv6-M and ARMv6-M-RP2 ports.
git-svn-id: svn://svn.code.sf.net/p/chibios/svn/trunk@14127 27425a3e-05d8-49a3-a47f-9c15f0e5edd8
This commit is contained in:
Giovanni Di Sirio
parent
658077bd6e
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/*
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ChibiOS - Copyright (C) 2006,2007,2008,2009,2010,2011,2012,2013,2014,
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2015,2016,2017,2018,2019,2020,2021 Giovanni Di Sirio.
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This file is part of ChibiOS.
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ChibiOS is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation version 3 of the License.
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ChibiOS is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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/**
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* @file ARMv6-M/compilers/GCC/chcoreasm.S
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* @brief ARMv6-M port low level code.
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*
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* @addtogroup ARMv6_M_GCC_CORE
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* @{
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*/
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#if !defined(FALSE) || defined(__DOXYGEN__)
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#define FALSE 0
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#endif
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#if !defined(TRUE) || defined(__DOXYGEN__)
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#define TRUE 1
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#endif
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#define _FROM_ASM_
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#include "chlicense.h"
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#include "chconf.h"
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#include "chcore.h"
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#if !defined(__DOXYGEN__)
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/*
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* RTOS-specific context offset.
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*/
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#if defined(_CHIBIOS_RT_CONF_)
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#if CH_CFG_USE_REGISTRY
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#define CURRENT_OFFSET 20 /* ch.rlist.current */
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#define CONTEXT_OFFSET 20
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#else
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#define CURRENT_OFFSET 12
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#define CONTEXT_OFFSET 12
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#endif
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#elif defined(_CHIBIOS_NIL_CONF_)
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#define CURRENT_OFFSET 0 /* nil.current */
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#define CONTEXT_OFFSET 0
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#else
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#error "invalid chconf.h"
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#endif
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.set SCB_ICSR, 0xE000ED04
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.set ICSR_PENDSVSET, 0x10000000
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.set ICSR_NMIPENDSET, 0x80000000
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.cpu cortex-m0
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.fpu softvfp
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.thumb
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.text
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/*--------------------------------------------------------------------------*
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* Performs a context switch between two threads.
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*--------------------------------------------------------------------------*/
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.thumb_func
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.globl __port_switch
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__port_switch:
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push {r4, r5, r6, r7, lr}
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mov r4, r8
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mov r5, r9
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mov r6, r10
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mov r7, r11
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push {r4, r5, r6, r7}
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mov r3, sp
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str r3, [r1, #CONTEXT_OFFSET]
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ldr r3, [r0, #CONTEXT_OFFSET]
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mov sp, r3
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pop {r4, r5, r6, r7}
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mov r8, r4
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mov r9, r5
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mov r10, r6
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mov r11, r7
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pop {r4, r5, r6, r7, pc}
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/*--------------------------------------------------------------------------*
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* Start a thread by invoking its work function.
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*
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* Threads execution starts here, the code leaves the system critical zone
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* and then jumps into the thread function passed in register R4. The
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* register R5 contains the thread parameter. The function chThdExit() is
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* called on thread function return.
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*--------------------------------------------------------------------------*/
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.thumb_func
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.globl __port_thread_start
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__port_thread_start:
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#if CH_DBG_SYSTEM_STATE_CHECK
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bl __dbg_check_unlock
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#endif
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#if CH_DBG_STATISTICS
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bl __stats_stop_measure_crit_thd
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#endif
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cpsie i
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mov r0, r5
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blx r4
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movs r0, #0 /* MSG_OK */
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bl chThdExit
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.zombies: b .zombies
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/*--------------------------------------------------------------------------*
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* Post-IRQ switch code.
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*
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* Exception handlers return here for context switching.
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*--------------------------------------------------------------------------*/
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.thumb_func
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.globl __port_switch_from_isr
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__port_switch_from_isr:
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#if CH_DBG_STATISTICS
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bl __stats_start_measure_crit_thd
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#endif
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#if CH_DBG_SYSTEM_STATE_CHECK
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bl __dbg_check_lock
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#endif
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bl chSchDoPreemption
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#if CH_DBG_SYSTEM_STATE_CHECK
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bl __dbg_check_unlock
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#endif
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#if CH_DBG_STATISTICS
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bl __stats_stop_measure_crit_thd
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#endif
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.globl __port_exit_from_isr
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__port_exit_from_isr:
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ldr r2, .L2
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ldr r3, .L3
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str r3, [r2, #0]
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#if CORTEX_ALTERNATE_SWITCH
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cpsie i
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#endif
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.L1: b .L1
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.align 2
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.L2: .word SCB_ICSR
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#if CORTEX_ALTERNATE_SWITCH
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.L3: .word ICSR_PENDSVSET
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#else
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.L3: .word ICSR_NMIPENDSET
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#endif
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#endif /* !defined(__DOXYGEN__) */
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/** @} */
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@ -0,0 +1,97 @@
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/*
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ChibiOS - Copyright (C) 2006,2007,2008,2009,2010,2011,2012,2013,2014,
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2015,2016,2017,2018,2019,2020,2021 Giovanni Di Sirio.
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This file is part of ChibiOS.
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ChibiOS is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation version 3 of the License.
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ChibiOS is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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/**
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* @file ARMCMx/compilers/GCC/chtypes.h
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* @brief ARM Cortex-Mx port system types.
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*
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* @addtogroup ARMCMx_GCC_CORE
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* @{
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*/
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#ifndef CHTYPES_H
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#define CHTYPES_H
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#include <stddef.h>
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#include <stdint.h>
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#include <stdbool.h>
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/**
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* @name Kernel types
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* @{
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*/
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typedef uint32_t rtcnt_t; /**< Realtime counter. */
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typedef uint64_t rttime_t; /**< Realtime accumulator. */
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typedef uint32_t syssts_t; /**< System status word. */
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typedef uint8_t tmode_t; /**< Thread flags. */
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typedef uint8_t tstate_t; /**< Thread state. */
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typedef uint8_t trefs_t; /**< Thread references counter. */
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typedef uint8_t tslices_t; /**< Thread time slices counter.*/
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typedef uint32_t tprio_t; /**< Thread priority. */
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typedef int32_t msg_t; /**< Inter-thread message. */
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typedef int32_t eventid_t; /**< Numeric event identifier. */
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typedef uint32_t eventmask_t; /**< Mask of event identifiers. */
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typedef uint32_t eventflags_t; /**< Mask of event flags. */
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typedef int32_t cnt_t; /**< Generic signed counter. */
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typedef uint32_t ucnt_t; /**< Generic unsigned counter. */
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/** @} */
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/**
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* @brief ROM constant modifier.
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* @note It is set to use the "const" keyword in this port.
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*/
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#define ROMCONST const
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/**
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* @brief Makes functions not inlineable.
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* @note If the compiler does not support such attribute then some
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* time-dependent services could be degraded.
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*/
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#define NOINLINE __attribute__((noinline))
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/**
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* @brief Optimized thread function declaration macro.
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*/
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#define PORT_THD_FUNCTION(tname, arg) void tname(void *arg)
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/**
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* @brief Packed variable specifier.
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*/
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#define PACKED_VAR __attribute__((packed))
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/**
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* @brief Memory alignment enforcement for variables.
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*/
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#define ALIGNED_VAR(n) __attribute__((aligned(n)))
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/**
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* @brief Size of a pointer.
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* @note To be used where the sizeof operator cannot be used, preprocessor
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* expressions for example.
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*/
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#define SIZEOF_PTR 4
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/**
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* @brief True if alignment is low-high in current architecture.
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*/
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#define REVERSE_ORDER 1
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#endif /* CHTYPES_H */
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/** @} */
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@ -1,14 +1,12 @@
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# List of the ChibiOS/RT RP2 port files, note it uses files from the
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# normal ARMv6-M port.
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# List of the ChibiOS/RT RP2 port files.
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PORTSRC = $(CHIBIOS)/os/common/ports/ARMv6-M-RP2/chcore.c
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PORTASM = $(CHIBIOS)/os/common/ports/ARMv6-M/compilers/GCC/chcoreasm.S
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PORTASM = $(CHIBIOS)/os/common/ports/ARMv6-M-RP2/compilers/GCC/chcoreasm.S
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PORTINC = $(CHIBIOS)/os/common/ports/ARMv6-M-RP2 \
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$(CHIBIOS)/os/common/ports/ARMv6-M/compilers/GCC
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$(CHIBIOS)/os/common/ports/ARMv6-M-RP2/compilers/GCC
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# Shared variables
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ALLXASMSRC += $(PORTASM)
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ALLCSRC += $(PORTSRC)
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ALLINC += $(PORTINC)
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