TencentOS tiny port to MSP430FR6972
This commit is contained in:
bourne-h
37
arch/msp430/MSP430X/icc430/data_model.h
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37
arch/msp430/MSP430X/icc430/data_model.h
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#ifndef DATA_MODEL_H
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#define DATA_MODEL_H
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#if __DATA_MODEL__ == __DATA_MODEL_SMALL__
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#define pushm_x pushm.w
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#define popm_x popm.w
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#define push_x push.w
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#define pop_x pop.w
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#define mov_x mov.w
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#define cmp_x cmp.w
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#endif
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#if __DATA_MODEL__ == __DATA_MODEL_MEDIUM__
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#define pushm_x pushm.a
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#define popm_x popm.a
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#define push_x pushx.a
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#define pop_x popx.a
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#define mov_x mov.w
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#define cmp_x cmp.w
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#endif
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#if __DATA_MODEL__ == __DATA_MODEL_LARGE__
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#define pushm_x pushm.a
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#define popm_x popm.a
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#define push_x pushx.a
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#define pop_x popx.a
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#define mov_x movx.a
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#define cmp_x cmpx.a
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#endif
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#ifndef pushm_x
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#error The assembler options must define one of the following symbols: __DATA_MODEL_SMALL__, __DATA_MODEL_MEDIUM__, or __DATA_MODEL_LARGE__
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#endif
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#endif /* DATA_MODEL_H */
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73
arch/msp430/MSP430X/icc430/port.h
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73
arch/msp430/MSP430X/icc430/port.h
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/*----------------------------------------------------------------------------
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* Tencent is pleased to support the open source community by making TencentOS
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* available.
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*
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* Copyright (C) 2019 THL A29 Limited, a Tencent company. All rights reserved.
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* If you have downloaded a copy of the TencentOS binary from Tencent, please
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* note that the TencentOS binary is licensed under the BSD 3-Clause License.
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*
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* If you have downloaded a copy of the TencentOS source code from Tencent,
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* please note that TencentOS source code is licensed under the BSD 3-Clause
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* License, except for the third-party components listed below which are
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* subject to different license terms. Your integration of TencentOS into your
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* own projects may require compliance with the BSD 3-Clause License, as well
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* as the other licenses applicable to the third-party components included
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* within TencentOS.
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*---------------------------------------------------------------------------*/
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#ifndef _PORT_H_
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#define _PORT_H_
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__PORT__ void port_int_disable(void);
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__PORT__ void port_int_enable(void);
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__PORT__ cpu_cpsr_t port_cpsr_save(void);
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__PORT__ void port_cpsr_restore(cpu_cpsr_t cpsr);
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__PORT__ void port_cpu_reset(void);
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__PORT__ void port_sched_start(void) __NO_RETURN__;
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__PORT__ void port_context_switch(void);
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__PORT__ void port_irq_context_switch(void);
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__PORT__ void port_systick_config(uint32_t cycle_per_tick);
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__PORT__ void port_systick_priority_set(uint32_t prio);
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#if TOS_CFG_TICKLESS_EN > 0u
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__PORT__ void port_systick_resume(void);
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__PORT__ void port_systick_suspend(void);
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__PORT__ void port_systick_reload(uint32_t cycle_per_tick);
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__PORT__ void port_systick_pending_reset(void);
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__PORT__ k_time_t port_systick_max_delay_millisecond(void);
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#endif
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#if TOS_CFG_PWR_MGR_EN > 0u
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__PORT__ void port_sleep_mode_enter(void);
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__PORT__ void port_stop_mode_enter(void);
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__PORT__ void port_standby_mode_enter(void);
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#endif
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#if TOS_CFG_FAULT_BACKTRACE_EN > 0u
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__PORT__ void HardFault_Handler(void);
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__PORT__ void port_fault_diagnosis(void);
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#endif
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#endif /* _PORT_H_ */
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116
arch/msp430/MSP430X/icc430/port_c.c
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116
arch/msp430/MSP430X/icc430/port_c.c
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#include "tos.h"
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__PORT__ void port_cpu_reset(void)
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{
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WDTCTL = WDTPW | 0xff00; // write a wrong Watchdog timer password will cause a PUC(reset)
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}
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__PORT__ void port_systick_config(uint32_t cycle_per_tick)
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{
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}
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__PORT__ void port_systick_priority_set(uint32_t prio)
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{
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}
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/* MSP430 */
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__PORT__ void port_setup_systick(void)
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{
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const unsigned short aclk_frequency_hz = 32768;
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/* Ensure the timer is stopped. */
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TA0CTL = 0;
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/* Run the timer from the ACLK. */
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TA0CTL = TASSEL_1;
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/* Clear everything to start with. */
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TA0CTL |= TACLR;
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/* Set the compare match value according to the tick rate we want. */
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TA0CCR0 = aclk_frequency_hz / TOS_CFG_CPU_TICK_PER_SECOND;
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/* Enable the interrupts. */
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TA0CCTL0 = CCIE;
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/* Start up clean. */
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TA0CTL |= TACLR;
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/* Up mode. */
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TA0CTL |= MC_1;
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}
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/* The MSP430X port uses a callback function to configure its tick interrupt.
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*/
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#pragma vector=TIMER0_A0_VECTOR
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__PORT__ __interrupt __raw void timer0_isr( void )
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{
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extern void port_systick_isr( void );
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__bic_SR_register_on_exit( SCG1 + SCG0 + OSCOFF + CPUOFF );
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port_systick_isr();
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}
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#if TOS_CFG_TICKLESS_EN > 0u
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__PORT__ k_time_t port_systick_max_delay_millisecond(void)
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{
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}
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__PORT__ void port_systick_resume(void)
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{
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}
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__PORT__ void port_systick_suspend(void)
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{
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}
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__PORT__ void port_systick_reload(uint32_t cycle_per_tick)
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{
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}
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__PORT__ void port_systick_pending_reset(void)
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{
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}
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#endif
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#if TOS_CFG_PWR_MGR_EN > 0u
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__PORT__ void port_sleep_mode_enter(void)
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{
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}
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__PORT__ void port_stop_mode_enter(void)
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{
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}
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__PORT__ void port_standby_mode_enter(void)
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{
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}
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#endif
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#if TOS_CFG_FAULT_BACKTRACE_EN > 0u
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__PORT__ void port_fault_diagnosis(void)
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{
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k_fault_log_writer("fault diagnosis does not supported in MSP430\n");
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}
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/*------------------ 430 IAR Compiler-------------------*/
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#if defined (__ICC430__) // __IAR_SYSTEMS_ICC__
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#endif
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#endif /* TOS_CFG_FAULT_BACKTRACE_EN */
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37
arch/msp430/MSP430X/icc430/port_config.h
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37
arch/msp430/MSP430X/icc430/port_config.h
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@@ -0,0 +1,37 @@
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/*----------------------------------------------------------------------------
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* Tencent is pleased to support the open source community by making TencentOS
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* available.
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*
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* Copyright (C) 2019 THL A29 Limited, a Tencent company. All rights reserved.
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* If you have downloaded a copy of the TencentOS binary from Tencent, please
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* note that the TencentOS binary is licensed under the BSD 3-Clause License.
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||||
*
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* If you have downloaded a copy of the TencentOS source code from Tencent,
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* please note that TencentOS source code is licensed under the BSD 3-Clause
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||||
* License, except for the third-party components listed below which are
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* subject to different license terms. Your integration of TencentOS into your
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* own projects may require compliance with the BSD 3-Clause License, as well
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||||
* as the other licenses applicable to the third-party components included
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* within TencentOS.
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*---------------------------------------------------------------------------*/
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#ifndef _PORT_CONFIG_H_
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#define _PORT_CONFIG_H_
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/* The stack type changes depending on the data model. */
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#if( __DATA_MODEL__ == __DATA_MODEL_SMALL__ )
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#define TOS_CFG_CPU_ADDR_SIZE CPU_WORD_SIZE_16
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#define TOS_CFG_CPU_DATA_SIZE CPU_WORD_SIZE_16
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#else
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#define TOS_CFG_CPU_ADDR_SIZE CPU_WORD_SIZE_32
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#define TOS_CFG_CPU_DATA_SIZE CPU_WORD_SIZE_32
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#endif
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#define TOS_CFG_CPU_STK_GROWTH CPU_STK_GROWTH_DESCENDING
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// #define TOS_CFG_CPU_HRTIMER_SIZE CPU_WORD_SIZE_32
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#define TOS_CFG_CPU_HRTIMER_EN 0u
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#define TOS_CFG_CPU_LEAD_ZEROS_ASM_PRESENT 0u
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#endif /* _PORT_CONFIG_H_ */
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148
arch/msp430/MSP430X/icc430/port_s.s43
Normal file
148
arch/msp430/MSP430X/icc430/port_s.s43
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@@ -0,0 +1,148 @@
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#include "data_model.h"
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;EXPORT
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PUBLIC port_int_disable
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PUBLIC port_int_enable
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PUBLIC port_cpsr_save
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PUBLIC port_cpsr_restore
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PUBLIC port_sched_start
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PUBLIC port_context_switch
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PUBLIC port_irq_context_switch
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PUBLIC port_systick_isr
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;IMPORT
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EXTERN k_curr_task
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EXTERN k_next_task
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EXTERN port_setup_systick
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EXTERN systick_handler
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EXTERN irq_context_switch_flag
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/*-----------------------------------------------------------*/
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PORT_SAVE_CONTEXT macro
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; Save the remaining registers.
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pushm_x #12, r15
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mov_x &k_curr_task, r12
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mov_x sp, 0( r12 )
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endm
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PORT_RESTORE_CONTEXT macro
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mov_x &k_curr_task, r12
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mov_x @r12, sp
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popm_x #12, r15
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nop
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pop.w sr
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nop
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reta
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endm
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/*-----------------------------------------------------------*/
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;The RTOS systick ISR.
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RSEG CODE
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EVEN
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port_systick_isr:
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; /* The sr is not saved in PORT_SAVE_CONTEXT() because port_context_switch() needs
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; to save it manually before it gets modified (interrupts get disabled).
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; Entering through this interrupt means the SR is already on the stack, but
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; this keeps the stack frames identical. */
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push.w sr
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PORT_SAVE_CONTEXT
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calla #systick_handler
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cmp.w #0x0,irq_context_switch_flag
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mov.w #0x0, &irq_context_switch_flag
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jeq skip_context_switch
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;k_next_task -> k_curr_task
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mov_x &k_next_task,&k_curr_task
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skip_context_switch:
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PORT_RESTORE_CONTEXT
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reti
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/*-----------------------------------------------------------*/
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port_int_disable:
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dint
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nop
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reta
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port_int_enable:
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nop
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eint
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reta
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port_cpsr_save:
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mov.w SR,R12
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dint
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nop
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reta
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port_cpsr_restore:
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nop
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mov.w R12,SR
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nop
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reta
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port_context_switch:
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;/* The sr needs saving before it is modified. */
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push.w sr
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;/* Now the SR is stacked interrupts can be disabled. */
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dint
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nop
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PORT_SAVE_CONTEXT
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;k_next_task -> k_curr_task
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mov_x &k_next_task,&k_curr_task
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PORT_RESTORE_CONTEXT
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reti
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port_irq_context_switch:
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reti
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/*-----------------------------------------------------------*/
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;/*
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;* Start off the scheduler by initialising the RTOS tick timer, then restoring
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;* the context of the first task.
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;*/
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port_sched_start:
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/* Interrupts are turned off here, to ensure a tick does not occur
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before or during the call to port_sched_start(). The stacks of
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the created tasks contain a status word with interrupts switched on
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so interrupts will automatically get re-enabled when the first task
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starts to run. */
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dint
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nop
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;/* Setup the hardware to generate the tick. Interrupts are disabled
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;when this function is called. */
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calla #port_setup_systick
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;mov_x &k_next_task,&k_curr_task
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;/* Restore the context of the first task that is going to run. */
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PORT_RESTORE_CONTEXT
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/*-----------------------------------------------------------*/
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END
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