diff --git a/os/common/ports/ARMv6-M/chcore.c b/os/common/ports/ARMv6-M/chcore.c new file mode 100644 index 000000000..06a0ca8fa --- /dev/null +++ b/os/common/ports/ARMv6-M/chcore.c @@ -0,0 +1,54 @@ +/* + ChibiOS - Copyright (C) 2006..2018 Giovanni Di Sirio. + + This file is part of ChibiOS. + + ChibiOS is free software; you can redistribute it and/or modify + it under the terms of the GNU General Public License as published by + the Free Software Foundation; either version 3 of the License, or + (at your option) any later version. + + ChibiOS is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + GNU General Public License for more details. + + You should have received a copy of the GNU General Public License + along with this program. If not, see . +*/ + +/** + * @file ARMCMx/chcore.c + * @brief ARM Cortex-Mx port code. + * + * @addtogroup ARMCMx_CORE + * @{ + */ + +#include "ch.h" + +/*===========================================================================*/ +/* Module local definitions. */ +/*===========================================================================*/ + +/*===========================================================================*/ +/* Module exported variables. */ +/*===========================================================================*/ + +/*===========================================================================*/ +/* Module local types. */ +/*===========================================================================*/ + +/*===========================================================================*/ +/* Module local variables. */ +/*===========================================================================*/ + +/*===========================================================================*/ +/* Module local functions. */ +/*===========================================================================*/ + +/*===========================================================================*/ +/* Module exported functions. */ +/*===========================================================================*/ + +/** @} */ diff --git a/os/common/ports/ARMv6-M/chcore.h b/os/common/ports/ARMv6-M/chcore.h new file mode 100644 index 000000000..c93aa86f7 --- /dev/null +++ b/os/common/ports/ARMv6-M/chcore.h @@ -0,0 +1,211 @@ +/* + ChibiOS - Copyright (C) 2006..2018 Giovanni Di Sirio. + + This file is part of ChibiOS. + + ChibiOS is free software; you can redistribute it and/or modify + it under the terms of the GNU General Public License as published by + the Free Software Foundation; either version 3 of the License, or + (at your option) any later version. + + ChibiOS is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + GNU General Public License for more details. + + You should have received a copy of the GNU General Public License + along with this program. If not, see . +*/ + +/** + * @file ARMCMx/chcore.h + * @brief ARM Cortex-Mx port macros and structures. + * + * @addtogroup ARMCMx_CORE + * @{ + */ + +#ifndef CHCORE_H +#define CHCORE_H + +/*===========================================================================*/ +/* Module constants. */ +/*===========================================================================*/ + +/** + * @name Architecture and Compiler + * @{ + */ +/** + * @brief Macro defining a generic ARM architecture. + */ +#define PORT_ARCHITECTURE_ARM + +/* The following code is not processed when the file is included from an + asm module because those intrinsic macros are not necessarily defined + by the assembler too.*/ +#if !defined(_FROM_ASM_) + +/** + * @brief Compiler name and version. + */ +#if defined(__GNUC__) || defined(__DOXYGEN__) +#define PORT_COMPILER_NAME "GCC " __VERSION__ + +#elif defined(__ICCARM__) +#define PORT_COMPILER_NAME "IAR" + +#elif defined(__CC_ARM) +#define PORT_COMPILER_NAME "RVCT" + +#else +#error "unsupported compiler" +#endif + +#endif /* !defined(_FROM_ASM_) */ + +/** @} */ + +/* Inclusion of the Cortex-Mx implementation specific parameters.*/ +#include "cmparams.h" + +/*===========================================================================*/ +/* Module pre-compile time settings. */ +/*===========================================================================*/ + +/** + * @brief Enables an alternative timer implementation. + * @details Usually the port uses a timer interface defined in the file + * @p chcore_timer.h, if this option is enabled then the file + * @p chcore_timer_alt.h is included instead. + */ +#if !defined(PORT_USE_ALT_TIMER) +#define PORT_USE_ALT_TIMER FALSE +#endif + +/*===========================================================================*/ +/* Derived constants and error checks. */ +/*===========================================================================*/ + +/*===========================================================================*/ +/* Module data structures and types. */ +/*===========================================================================*/ + +/* The following code is not processed when the file is included from an + asm module.*/ +#if !defined(_FROM_ASM_) + +/** + * @brief Type of stack and memory alignment enforcement. + * @note In this architecture the stack alignment is enforced to 64 bits, + * 32 bits alignment is supported by hardware but deprecated by ARM, + * the implementation choice is to not offer the option. + */ +typedef uint64_t stkalign_t; + +/* The following declarations are there just for Doxygen documentation, the + real declarations are inside the sub-headers being specific for the + sub-architectures.*/ +#if defined(__DOXYGEN__) +/** + * @brief Interrupt saved context. + * @details This structure represents the stack frame saved during a + * preemption-capable interrupt handler. + * @note It is implemented to match the Cortex-Mx exception context. + */ +struct port_extctx {}; + +/** + * @brief System saved context. + * @details This structure represents the inner stack frame during a context + * switch. + */ +struct port_intctx {}; + +/** + * @brief Platform dependent part of the @p thread_t structure. + * @details In this port the structure just holds a pointer to the + * @p port_intctx structure representing the stack pointer + * at context switch time. + */ +struct port_context {}; +#endif /* defined(__DOXYGEN__) */ + +#endif /* !defined(_FROM_ASM_) */ + +/*===========================================================================*/ +/* Module macros. */ +/*===========================================================================*/ + +/** + * @brief Total priority levels. + */ +#define CORTEX_PRIORITY_LEVELS (1U << CORTEX_PRIORITY_BITS) + +/** + * @brief Minimum priority level. + * @details This minimum priority level is calculated from the number of + * priority bits supported by the specific Cortex-Mx implementation. + */ +#define CORTEX_MINIMUM_PRIORITY (CORTEX_PRIORITY_LEVELS - 1) + +/** + * @brief Maximum priority level. + * @details The maximum allowed priority level is always zero. + */ +#define CORTEX_MAXIMUM_PRIORITY 0U + +/** + * @brief Priority level to priority mask conversion macro. + */ +#define CORTEX_PRIO_MASK(n) \ + ((n) << (8U - (unsigned)CORTEX_PRIORITY_BITS)) + +/** + * @brief Priority level verification macro. + */ +#define PORT_IRQ_IS_VALID_PRIORITY(n) \ + (((n) >= 0U) && ((n) < CORTEX_PRIORITY_LEVELS)) + +/** + * @brief Priority level verification macro. + */ +#define PORT_IRQ_IS_VALID_KERNEL_PRIORITY(n) \ + (((n) >= CORTEX_MAX_KERNEL_PRIORITY) && ((n) < CORTEX_PRIORITY_LEVELS)) + +/*===========================================================================*/ +/* External declarations. */ +/*===========================================================================*/ + +/*===========================================================================*/ +/* Module inline functions. */ +/*===========================================================================*/ + +/* Includes the sub-architecture-specific part.*/ +#if (CORTEX_MODEL == 0) || (CORTEX_MODEL == 1) +#include "chcore_v6m.h" +#elif (CORTEX_MODEL == 3) || (CORTEX_MODEL == 4) || (CORTEX_MODEL == 7) +#include "mpu.h" +#include "chcore_v7m.h" +#elif (CORTEX_MODEL == 33) || (CORTEX_MODEL == 55) +#include "mpu_v8m.h" +#include "chcore_v8m-ml.h" +#else +#error "unknown Cortex-M variant" +#endif + +#if !defined(_FROM_ASM_) + +#if CH_CFG_ST_TIMEDELTA > 0 +#if PORT_USE_ALT_TIMER == FALSE +#include "chcore_timer.h" +#else /* PORT_USE_ALT_TIMER != FALSE */ +#include "chcore_timer_alt.h" +#endif /* PORT_USE_ALT_TIMER != FALSE */ +#endif /* CH_CFG_ST_TIMEDELTA > 0 */ + +#endif /* !defined(_FROM_ASM_) */ + +#endif /* CHCORE_H */ + +/** @} */ diff --git a/os/common/ports/ARMv6-M/chcore_timer.h b/os/common/ports/ARMv6-M/chcore_timer.h new file mode 100644 index 000000000..80a76f9f4 --- /dev/null +++ b/os/common/ports/ARMv6-M/chcore_timer.h @@ -0,0 +1,133 @@ +/* + ChibiOS - Copyright (C) 2006..2018 Giovanni Di Sirio. + + This file is part of ChibiOS. + + ChibiOS is free software; you can redistribute it and/or modify + it under the terms of the GNU General Public License as published by + the Free Software Foundation; either version 3 of the License, or + (at your option) any later version. + + ChibiOS is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + GNU General Public License for more details. + + You should have received a copy of the GNU General Public License + along with this program. If not, see . +*/ + +/** + * @file chcore_timer.h + * @brief System timer header file. + * + * @addtogroup ARMCMx_TIMER + * @{ + */ + +#ifndef CHCORE_TIMER_H +#define CHCORE_TIMER_H + +/*===========================================================================*/ +/* Module constants. */ +/*===========================================================================*/ + +/*===========================================================================*/ +/* Module pre-compile time settings. */ +/*===========================================================================*/ + +/*===========================================================================*/ +/* Derived constants and error checks. */ +/*===========================================================================*/ + +/*===========================================================================*/ +/* Module data structures and types. */ +/*===========================================================================*/ + +/*===========================================================================*/ +/* Module macros. */ +/*===========================================================================*/ + +/*===========================================================================*/ +/* External declarations. */ +/*===========================================================================*/ + +#ifdef __cplusplus +extern "C" { +#endif + void stStartAlarm(systime_t time); + void stStopAlarm(void); + void stSetAlarm(systime_t time); + systime_t stGetCounter(void); + systime_t stGetAlarm(void); +#ifdef __cplusplus +} +#endif + +/*===========================================================================*/ +/* Module inline functions. */ +/*===========================================================================*/ + +/** + * @brief Starts the alarm. + * @note Makes sure that no spurious alarms are triggered after + * this call. + * + * @param[in] time the time to be set for the first alarm + * + * @notapi + */ +static inline void port_timer_start_alarm(systime_t time) { + + stStartAlarm(time); +} + +/** + * @brief Stops the alarm interrupt. + * + * @notapi + */ +static inline void port_timer_stop_alarm(void) { + + stStopAlarm(); +} + +/** + * @brief Sets the alarm time. + * + * @param[in] time the time to be set for the next alarm + * + * @notapi + */ +static inline void port_timer_set_alarm(systime_t time) { + + stSetAlarm(time); +} + +/** + * @brief Returns the system time. + * + * @return The system time. + * + * @notapi + */ +static inline systime_t port_timer_get_time(void) { + + return stGetCounter(); +} + +/** + * @brief Returns the current alarm time. + * + * @return The currently set alarm time. + * + * @notapi + */ +static inline systime_t port_timer_get_alarm(void) { + + return stGetAlarm(); +} + +#endif /* CHCORE_TIMER_H */ + +/** @} */ diff --git a/os/common/ports/ARMv6-M/compilers/GCC/chcoreasm.S b/os/common/ports/ARMv6-M/compilers/GCC/chcoreasm.S new file mode 100644 index 000000000..a62b6596c --- /dev/null +++ b/os/common/ports/ARMv6-M/compilers/GCC/chcoreasm.S @@ -0,0 +1,163 @@ +/* + ChibiOS - Copyright (C) 2006..2018 Giovanni Di Sirio. + + This file is part of ChibiOS. + + ChibiOS is free software; you can redistribute it and/or modify + it under the terms of the GNU General Public License as published by + the Free Software Foundation; either version 3 of the License, or + (at your option) any later version. + + ChibiOS is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + GNU General Public License for more details. + + You should have received a copy of the GNU General Public License + along with this program. If not, see . +*/ + +/** + * @file ARMv6-M/compilers/GCC/chcoreasm.S + * @brief ARMv6-M port low level code. + * + * @addtogroup ARMv6_M_GCC_CORE + * @{ + */ + +#if !defined(FALSE) || defined(__DOXYGEN__) +#define FALSE 0 +#endif + +#if !defined(TRUE) || defined(__DOXYGEN__) +#define TRUE 1 +#endif + +#define _FROM_ASM_ +#include "chlicense.h" +#include "chconf.h" +#include "chcore.h" + +#if !defined(__DOXYGEN__) + +/* + * RTOS-specific context offset. + */ +#if defined(_CHIBIOS_RT_CONF_) +#if CH_CFG_USE_REGISTRY +#define CURRENT_OFFSET 20 /* ch.rlist.current */ +#define CONTEXT_OFFSET 20 +#else +#define CURRENT_OFFSET 12 +#define CONTEXT_OFFSET 12 +#endif + +#elif defined(_CHIBIOS_NIL_CONF_) +#define CURRENT_OFFSET 0 /* nil.current */ +#define CONTEXT_OFFSET 0 + +#else +#error "invalid chconf.h" +#endif + + .set SCB_ICSR, 0xE000ED04 + .set ICSR_PENDSVSET, 0x10000000 + .set ICSR_NMIPENDSET, 0x80000000 + + .cpu cortex-m0 + .fpu softvfp + + .thumb + .text + +/*--------------------------------------------------------------------------* + * Performs a context switch between two threads. + *--------------------------------------------------------------------------*/ + .thumb_func + .globl _port_switch +_port_switch: + push {r4, r5, r6, r7, lr} + mov r4, r8 + mov r5, r9 + mov r6, r10 + mov r7, r11 + push {r4, r5, r6, r7} + + mov r3, sp + str r3, [r1, #CONTEXT_OFFSET] + ldr r3, [r0, #CONTEXT_OFFSET] + mov sp, r3 + + pop {r4, r5, r6, r7} + mov r8, r4 + mov r9, r5 + mov r10, r6 + mov r11, r7 + pop {r4, r5, r6, r7, pc} + +/*--------------------------------------------------------------------------* + * Start a thread by invoking its work function. + * + * Threads execution starts here, the code leaves the system critical zone + * and then jumps into the thread function passed in register R4. The + * register R5 contains the thread parameter. The function chThdExit() is + * called on thread function return. + *--------------------------------------------------------------------------*/ + .thumb_func + .globl _port_thread_start +_port_thread_start: +#if CH_DBG_SYSTEM_STATE_CHECK + bl _dbg_check_unlock +#endif +#if CH_DBG_STATISTICS + bl _stats_stop_measure_crit_thd +#endif + cpsie i + mov r0, r5 + blx r4 + movs r0, #0 /* MSG_OK */ + bl chThdExit +_zombies: b _zombies + +/*--------------------------------------------------------------------------* + * Post-IRQ switch code. + * + * Exception handlers return here for context switching. + *--------------------------------------------------------------------------*/ + .thumb_func + .globl _port_switch_from_isr +_port_switch_from_isr: +#if CH_DBG_STATISTICS + bl _stats_start_measure_crit_thd +#endif +#if CH_DBG_SYSTEM_STATE_CHECK + bl _dbg_check_lock +#endif + bl chSchDoReschedule +#if CH_DBG_SYSTEM_STATE_CHECK + bl _dbg_check_unlock +#endif +#if CH_DBG_STATISTICS + bl _stats_stop_measure_crit_thd +#endif + .globl _port_exit_from_isr +_port_exit_from_isr: + ldr r2, .L2 + ldr r3, .L3 + str r3, [r2, #0] +#if CORTEX_ALTERNATE_SWITCH + cpsie i +#endif +.L1: b .L1 + + .align 2 +.L2: .word SCB_ICSR +#if CORTEX_ALTERNATE_SWITCH +.L3: .word ICSR_PENDSVSET +#else +.L3: .word ICSR_NMIPENDSET +#endif + +#endif /* !defined(__DOXYGEN__) */ + +/** @} */ diff --git a/os/common/ports/ARMv6-M/compilers/GCC/chtypes.h b/os/common/ports/ARMv6-M/compilers/GCC/chtypes.h new file mode 100644 index 000000000..de95804bf --- /dev/null +++ b/os/common/ports/ARMv6-M/compilers/GCC/chtypes.h @@ -0,0 +1,97 @@ +/* + ChibiOS - Copyright (C) 2006..2018 Giovanni Di Sirio. + + This file is part of ChibiOS. + + ChibiOS is free software; you can redistribute it and/or modify + it under the terms of the GNU General Public License as published by + the Free Software Foundation; either version 3 of the License, or + (at your option) any later version. + + ChibiOS is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + GNU General Public License for more details. + + You should have received a copy of the GNU General Public License + along with this program. If not, see . +*/ + +/** + * @file ARMCMx/compilers/GCC/chtypes.h + * @brief ARM Cortex-Mx port system types. + * + * @addtogroup ARMCMx_GCC_CORE + * @{ + */ + +#ifndef CHTYPES_H +#define CHTYPES_H + +#include +#include +#include + +/** + * @name Kernel types + * @{ + */ +typedef uint32_t rtcnt_t; /**< Realtime counter. */ +typedef uint64_t rttime_t; /**< Realtime accumulator. */ +typedef uint32_t syssts_t; /**< System status word. */ +typedef uint8_t tmode_t; /**< Thread flags. */ +typedef uint8_t tstate_t; /**< Thread state. */ +typedef uint8_t trefs_t; /**< Thread references counter. */ +typedef uint8_t tslices_t; /**< Thread time slices counter.*/ +typedef uint32_t tprio_t; /**< Thread priority. */ +typedef int32_t msg_t; /**< Inter-thread message. */ +typedef int32_t eventid_t; /**< Numeric event identifier. */ +typedef uint32_t eventmask_t; /**< Mask of event identifiers. */ +typedef uint32_t eventflags_t; /**< Mask of event flags. */ +typedef int32_t cnt_t; /**< Generic signed counter. */ +typedef uint32_t ucnt_t; /**< Generic unsigned counter. */ +/** @} */ + +/** + * @brief ROM constant modifier. + * @note It is set to use the "const" keyword in this port. + */ +#define ROMCONST const + +/** + * @brief Makes functions not inlineable. + * @note If the compiler does not support such attribute then some + * time-dependent services could be degraded. + */ +#define NOINLINE __attribute__((noinline)) + +/** + * @brief Optimized thread function declaration macro. + */ +#define PORT_THD_FUNCTION(tname, arg) void tname(void *arg) + +/** + * @brief Packed variable specifier. + */ +#define PACKED_VAR __attribute__((packed)) + +/** + * @brief Memory alignment enforcement for variables. + */ +#define ALIGNED_VAR(n) __attribute__((aligned(n))) + +/** + * @brief Size of a pointer. + * @note To be used where the sizeof operator cannot be used, preprocessor + * expressions for example. + */ +#define SIZEOF_PTR 4 + +/** + * @brief True if alignment is low-high in current architecture. + */ +#define REVERSE_ORDER 1 + +#endif /* CHTYPES_H */ + +/** @} */ diff --git a/os/common/ports/ARMv6-M/compilers/GCC/mk/port_v6m.mk b/os/common/ports/ARMv6-M/compilers/GCC/mk/port_v6m.mk new file mode 100644 index 000000000..1fefa0441 --- /dev/null +++ b/os/common/ports/ARMv6-M/compilers/GCC/mk/port_v6m.mk @@ -0,0 +1,13 @@ +# List of the ChibiOS/RT Cortex-M0 STM32F0xx port files. +PORTSRC = $(CHIBIOS)/os/common/ports/ARMCMx/chcore.c \ + $(CHIBIOS)/os/common/ports/ARMCMx/chcore_v6m.c + +PORTASM = $(CHIBIOS)/os/common/ports/ARMCMx/compilers/GCC/chcoreasm_v6m.S + +PORTINC = $(CHIBIOS)/os/common/ports/ARMCMx \ + $(CHIBIOS)/os/common/ports/ARMCMx/compilers/GCC + +# Shared variables +ALLXASMSRC += $(PORTASM) +ALLCSRC += $(PORTSRC) +ALLINC += $(PORTINC) diff --git a/os/common/ports/ARMv6-M/compilers/GCC/mk/port_v7m.mk b/os/common/ports/ARMv6-M/compilers/GCC/mk/port_v7m.mk new file mode 100644 index 000000000..fb89795e8 --- /dev/null +++ b/os/common/ports/ARMv6-M/compilers/GCC/mk/port_v7m.mk @@ -0,0 +1,13 @@ +# List of the ChibiOS/RT ARMv7M generic port files. +PORTSRC = $(CHIBIOS)/os/common/ports/ARMCMx/chcore.c \ + $(CHIBIOS)/os/common/ports/ARMCMx/chcore_v7m.c + +PORTASM = $(CHIBIOS)/os/common/ports/ARMCMx/compilers/GCC/chcoreasm_v7m.S + +PORTINC = $(CHIBIOS)/os/common/ports/ARMCMx \ + $(CHIBIOS)/os/common/ports/ARMCMx/compilers/GCC + +# Shared variables +ALLXASMSRC += $(PORTASM) +ALLCSRC += $(PORTSRC) +ALLINC += $(PORTINC) diff --git a/os/common/ports/ARMv6-M/compilers/GCC/mk/port_v8m-ml.mk b/os/common/ports/ARMv6-M/compilers/GCC/mk/port_v8m-ml.mk new file mode 100644 index 000000000..27b7b74eb --- /dev/null +++ b/os/common/ports/ARMv6-M/compilers/GCC/mk/port_v8m-ml.mk @@ -0,0 +1,13 @@ +# List of the ChibiOS/RT ARMv8M-mainline generic port files. +PORTSRC = $(CHIBIOS)/os/common/ports/ARMCMx/chcore.c \ + $(CHIBIOS)/os/common/ports/ARMCMx/chcore_v8m-ml.c + +PORTASM = $(CHIBIOS)/os/common/ports/ARMCMx/compilers/GCC/chcoreasm_v8m-ml.S + +PORTINC = $(CHIBIOS)/os/common/ports/ARMCMx \ + $(CHIBIOS)/os/common/ports/ARMCMx/compilers/GCC + +# Shared variables +ALLXASMSRC += $(PORTASM) +ALLCSRC += $(PORTSRC) +ALLINC += $(PORTINC) diff --git a/os/common/ports/ARMv6-M/compilers/IAR/chcoreasm.s b/os/common/ports/ARMv6-M/compilers/IAR/chcoreasm.s new file mode 100644 index 000000000..b81558324 --- /dev/null +++ b/os/common/ports/ARMv6-M/compilers/IAR/chcoreasm.s @@ -0,0 +1,165 @@ +/* + ChibiOS - Copyright (C) 2006..2018 Giovanni Di Sirio. + + This file is part of ChibiOS. + + ChibiOS is free software; you can redistribute it and/or modify + it under the terms of the GNU General Public License as published by + the Free Software Foundation; either version 3 of the License, or + (at your option) any later version. + + ChibiOS is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + GNU General Public License for more details. + + You should have received a copy of the GNU General Public License + along with this program. If not, see . +*/ + +/** + * @file ARMv6-M/compilers/IAR/chcoreasm.s + * @brief ARMv6-M port low level code. + * + * @addtogroup ARMv6_M_IAR_CORE + * @{ + */ + +#if !defined(FALSE) || defined(__DOXYGEN__) +#define FALSE 0 +#endif + +#if !defined(TRUE) || defined(__DOXYGEN__) +#define TRUE 1 +#endif + +#define _FROM_ASM_ +#include "chlicense.h" +#include "chconf.h" +#include "chcore.h" + +#if !defined(__DOXYGEN__) + +/* + * RTOS-specific context offset. + */ +#if defined(_CHIBIOS_RT_CONF_) +#if CH_CFG_USE_REGISTRY +#define CURRENT_OFFSET 20 /* ch.rlist.current */ +#define CONTEXT_OFFSET 20 +#else +#define CURRENT_OFFSET 12 +#define CONTEXT_OFFSET 12 +#endif + +#elif defined(_CHIBIOS_NIL_CONF_) +#define CURRENT_OFFSET 0 /* nil.current */ +#define CONTEXT_OFFSET 0 + +#else +#error "invalid chconf.h" +#endif + + MODULE ?chcoreasm_v6m + + AAPCS INTERWORK, VFP_COMPATIBLE + PRESERVE8 + +SCB_ICSR SET 0xE000ED04 + + SECTION .text:CODE:NOROOT(2) + + EXTERN chThdExit + EXTERN chSysHalt + EXTERN chSchDoReschedule +#if CH_DBG_STATISTICS + EXTERN _stats_start_measure_crit_thd + EXTERN _stats_stop_measure_crit_thd +#endif +#if CH_DBG_SYSTEM_STATE_CHECK + EXTERN _dbg_check_unlock + EXTERN _dbg_check_lock +#endif + + THUMB + +/* + * Performs a context switch between two threads. + */ + PUBLIC _port_switch +_port_switch: + push {r4, r5, r6, r7, lr} + mov r4, r8 + mov r5, r9 + mov r6, r10 + mov r7, r11 + push {r4, r5, r6, r7} + mov r3, sp + str r3, [r1, #CONTEXT_OFFSET] + ldr r3, [r0, #CONTEXT_OFFSET] + mov sp, r3 + pop {r4, r5, r6, r7} + mov r8, r4 + mov r9, r5 + mov r10, r6 + mov r11, r7 + pop {r4, r5, r6, r7, pc} + +/* + * Start a thread by invoking its work function. + * If the work function returns @p chThdExit() is automatically invoked. + */ + PUBLIC _port_thread_start +_port_thread_start: +#if CH_DBG_SYSTEM_STATE_CHECK + bl _dbg_check_unlock +#endif +#if CH_DBG_STATISTICS + bl _stats_stop_measure_crit_thd +#endif + cpsie i + mov r0, r5 + blx r4 + movs r0, #0 /* MSG_OK */ + bl chThdExit +_zombies: b _zombies + +/* + * Post-IRQ switch code. + * Exception handlers return here for context switching. + */ + PUBLIC _port_switch_from_isr + PUBLIC _port_exit_from_isr +_port_switch_from_isr: +#if CH_DBG_STATISTICS + bl _stats_start_measure_crit_thd +#endif +#if CH_DBG_SYSTEM_STATE_CHECK + bl _dbg_check_lock +#endif + bl chSchDoReschedule +#if CH_DBG_SYSTEM_STATE_CHECK + bl _dbg_check_unlock +#endif +#if CH_DBG_STATISTICS + bl _stats_stop_measure_crit_thd +#endif +_port_exit_from_isr: + ldr r2, =SCB_ICSR + movs r3, #128 +#if CORTEX_ALTERNATE_SWITCH + lsls r3, r3, #21 + str r3, [r2, #0] + cpsie i +#else + lsls r3, r3, #24 + str r3, [r2, #0] +#endif +waithere: + b waithere + + END + +#endif /* !defined(__DOXYGEN__) */ + +/** @} */ diff --git a/os/common/ports/ARMv6-M/compilers/IAR/chtypes.h b/os/common/ports/ARMv6-M/compilers/IAR/chtypes.h new file mode 100644 index 000000000..2bd376de2 --- /dev/null +++ b/os/common/ports/ARMv6-M/compilers/IAR/chtypes.h @@ -0,0 +1,115 @@ +/* + ChibiOS - Copyright (C) 2006..2018 Giovanni Di Sirio. + + This file is part of ChibiOS. + + ChibiOS is free software; you can redistribute it and/or modify + it under the terms of the GNU General Public License as published by + the Free Software Foundation; either version 3 of the License, or + (at your option) any later version. + + ChibiOS is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + GNU General Public License for more details. + + You should have received a copy of the GNU General Public License + along with this program. If not, see . +*/ + +/** + * @file ARMCMx/compilers/IAR/chtypes.h + * @brief ARM Cortex-Mx port system types. + * + * @addtogroup ARMCMx_IAR_CORE + * @{ + */ + +#ifndef CHTYPES_H +#define CHTYPES_H + +#include +#include +#include + +/** + * @name Common constants + */ +/** + * @brief Generic 'false' boolean constant. + */ +#if !defined(FALSE) || defined(__DOXYGEN__) +#define FALSE 0 +#endif + +/** + * @brief Generic 'true' boolean constant. + */ +#if !defined(TRUE) || defined(__DOXYGEN__) +#define TRUE (!FALSE) +#endif +/** @} */ + +/** + * @name Kernel types + * @{ + */ +typedef uint32_t rtcnt_t; /**< Realtime counter. */ +typedef uint64_t rttime_t; /**< Realtime accumulator. */ +typedef uint32_t syssts_t; /**< System status word. */ +typedef uint8_t tmode_t; /**< Thread flags. */ +typedef uint8_t tstate_t; /**< Thread state. */ +typedef uint8_t trefs_t; /**< Thread references counter. */ +typedef uint8_t tslices_t; /**< Thread time slices counter.*/ +typedef uint32_t tprio_t; /**< Thread priority. */ +typedef int32_t msg_t; /**< Inter-thread message. */ +typedef int32_t eventid_t; /**< Numeric event identifier. */ +typedef uint32_t eventmask_t; /**< Mask of event identifiers. */ +typedef uint32_t eventflags_t; /**< Mask of event flags. */ +typedef int32_t cnt_t; /**< Generic signed counter. */ +typedef uint32_t ucnt_t; /**< Generic unsigned counter. */ +/** @} */ + +/** + * @brief ROM constant modifier. + * @note It is set to use the "const" keyword in this port. + */ +#define ROMCONST const + +/** + * @brief Makes functions not inlineable. + * @note If the compiler does not support such attribute then some + * time-dependent services could be degraded. + */ +#define NOINLINE _Pragma("inline=never") + +/** + * @brief Optimized thread function declaration macro. + */ +#define PORT_THD_FUNCTION(tname, arg) void tname(void *arg) + +/** + * @brief Packed variable specifier. + */ +#define PACKED_VAR __packed + +/** + * @brief Memory alignment enforcement for variables. + */ +#define ALIGNED_VAR(n) _Pragma(__CH_STRINGIFY(data_alignment=n)) + +/** + * @brief Size of a pointer. + * @note To be used where the sizeof operator cannot be used, preprocessor + * expressions for example. + */ +#define SIZEOF_PTR 4 + +/** + * @brief True if alignment is low-high in current architecture. + */ +#define REVERSE_ORDER 1 + +#endif /* CHTYPES_H */ + +/** @} */ diff --git a/os/common/ports/ARMv6-M/compilers/RVCT/chcoreasm.s b/os/common/ports/ARMv6-M/compilers/RVCT/chcoreasm.s new file mode 100644 index 000000000..b33d0d2dc --- /dev/null +++ b/os/common/ports/ARMv6-M/compilers/RVCT/chcoreasm.s @@ -0,0 +1,161 @@ +/* + ChibiOS - Copyright (C) 2006..2018 Giovanni Di Sirio. + + This file is part of ChibiOS. + + ChibiOS is free software; you can redistribute it and/or modify + it under the terms of the GNU General Public License as published by + the Free Software Foundation; either version 3 of the License, or + (at your option) any later version. + + ChibiOS is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + GNU General Public License for more details. + + You should have received a copy of the GNU General Public License + along with this program. If not, see . +*/ + +/** + * @file ARMv6-M/compilers/RVCT/chcoreasm.s + * @brief ARMv6-M port low level code. + * + * @addtogroup ARMv6_M_RVCT_CORE + * @{ + */ + +#if !defined(FALSE) || defined(__DOXYGEN__) +#define FALSE 0 +#endif + +#if !defined(TRUE) || defined(__DOXYGEN__) +#define TRUE 1 +#endif + +#define _FROM_ASM_ +#include "chlicense.h" +#include "chconf.h" +#include "chcore.h" + +#if !defined(__DOXYGEN__) + +/* + * RTOS-specific context offset. + */ +#if defined(_CHIBIOS_RT_CONF_) +#if CH_CFG_USE_REGISTRY +#define CURRENT_OFFSET 20 /* ch.rlist.current */ +#define CONTEXT_OFFSET 20 +#else +#define CURRENT_OFFSET 12 +#define CONTEXT_OFFSET 12 +#endif + +#elif defined(_CHIBIOS_NIL_CONF_) +#define CURRENT_OFFSET 0 /* nil.current */ +#define CONTEXT_OFFSET 0 + +#else +#error "invalid chconf.h" +#endif + +SCB_ICSR EQU 0xE000ED04 + + PRESERVE8 + THUMB + AREA |.text|, CODE, READONLY + + IMPORT chThdExit + IMPORT chSchDoReschedule +#if CH_DBG_STATISTICS + IMPORT _stats_start_measure_crit_thd + IMPORT _stats_stop_measure_crit_thd +#endif +#if CH_DBG_SYSTEM_STATE_CHECK + IMPORT _dbg_check_unlock + IMPORT _dbg_check_lock +#endif + +/* + * Performs a context switch between two threads. + */ + EXPORT _port_switch +_port_switch PROC + push {r4, r5, r6, r7, lr} + mov r4, r8 + mov r5, r9 + mov r6, r10 + mov r7, r11 + push {r4, r5, r6, r7} + mov r3, sp + str r3, [r1, #CONTEXT_OFFSET] + ldr r3, [r0, #CONTEXT_OFFSET] + mov sp, r3 + pop {r4, r5, r6, r7} + mov r8, r4 + mov r9, r5 + mov r10, r6 + mov r11, r7 + pop {r4, r5, r6, r7, pc} + ENDP + +/* + * Start a thread by invoking its work function. + * If the work function returns @p chThdExit() is automatically invoked. + */ + EXPORT _port_thread_start +_port_thread_start PROC +#if CH_DBG_SYSTEM_STATE_CHECK + bl _dbg_check_unlock +#endif +#if CH_DBG_STATISTICS + bl _stats_stop_measure_crit_thd +#endif + cpsie i + mov r0, r5 + blx r4 + movs r0, #0 /* MSG_OK */ + bl chThdExit +_zombies b _zombies + ENDP + +/* + * Post-IRQ switch code. + * Exception handlers return here for context switching. + */ + EXPORT _port_switch_from_isr + EXPORT _port_exit_from_isr +_port_switch_from_isr PROC +#if CH_DBG_STATISTICS + bl _stats_start_measure_crit_thd +#endif +#if CH_DBG_SYSTEM_STATE_CHECK + bl _dbg_check_lock +#endif + bl chSchDoReschedule +#if CH_DBG_SYSTEM_STATE_CHECK + bl _dbg_check_unlock +#endif +#if CH_DBG_STATISTICS + bl _stats_stop_measure_crit_thd +#endif +_port_exit_from_isr + ldr r2, =SCB_ICSR + movs r3, #128 +#if CORTEX_ALTERNATE_SWITCH + lsls r3, r3, #21 + str r3, [r2, #0] + cpsie i +#else + lsls r3, r3, #24 + str r3, [r2, #0] +#endif +waithere b waithere + ENDP + + END + +#endif /* !defined(__DOXYGEN__) */ + +/** @} */ diff --git a/os/common/ports/ARMv6-M/compilers/RVCT/chtypes.h b/os/common/ports/ARMv6-M/compilers/RVCT/chtypes.h new file mode 100644 index 000000000..fbda59762 --- /dev/null +++ b/os/common/ports/ARMv6-M/compilers/RVCT/chtypes.h @@ -0,0 +1,97 @@ +/* + ChibiOS - Copyright (C) 2006..2018 Giovanni Di Sirio. + + This file is part of ChibiOS. + + ChibiOS is free software; you can redistribute it and/or modify + it under the terms of the GNU General Public License as published by + the Free Software Foundation; either version 3 of the License, or + (at your option) any later version. + + ChibiOS is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + GNU General Public License for more details. + + You should have received a copy of the GNU General Public License + along with this program. If not, see . +*/ + +/** + * @file ARMCMx/compilers/RVCT/chtypes.h + * @brief ARM Cortex-Mx port system types. + * + * @addtogroup ARMCMx_RVCT_CORE + * @{ + */ + +#ifndef CHTYPES_H +#define CHTYPES_H + +#include +#include +#include + +/** + * @name Kernel types + * @{ + */ +typedef uint32_t rtcnt_t; /**< Realtime counter. */ +typedef uint64_t rttime_t; /**< Realtime accumulator. */ +typedef uint32_t syssts_t; /**< System status word. */ +typedef uint8_t tmode_t; /**< Thread flags. */ +typedef uint8_t tstate_t; /**< Thread state. */ +typedef uint8_t trefs_t; /**< Thread references counter. */ +typedef uint8_t tslices_t; /**< Thread time slices counter.*/ +typedef uint32_t tprio_t; /**< Thread priority. */ +typedef int32_t msg_t; /**< Inter-thread message. */ +typedef int32_t eventid_t; /**< Numeric event identifier. */ +typedef uint32_t eventmask_t; /**< Mask of event identifiers. */ +typedef uint32_t eventflags_t; /**< Mask of event flags. */ +typedef int32_t cnt_t; /**< Generic signed counter. */ +typedef uint32_t ucnt_t; /**< Generic unsigned counter. */ +/** @} */ + +/** + * @brief ROM constant modifier. + * @note It is set to use the "const" keyword in this port. + */ +#define ROMCONST const + +/** + * @brief Makes functions not inlineable. + * @note If the compiler does not support such attribute then some + * time-dependent services could be degraded. + */ +#define NOINLINE __attribute__((noinline)) + +/** + * @brief Optimized thread function declaration macro. + */ +#define PORT_THD_FUNCTION(tname, arg) void tname(void *arg) + +/** + * @brief Packed variable specifier. + */ +#define PACKED_VAR __packed + +/** + * @brief Memory alignment enforcement for variables. + */ +#define ALIGNED_VAR(n) __attribute__((aligned(n))) + +/** + * @brief Size of a pointer. + * @note To be used where the sizeof operator cannot be used, preprocessor + * expressions for example. + */ +#define SIZEOF_PTR 4 + +/** + * @brief True if alignment is low-high in current architecture. + */ +#define REVERSE_ORDER 1 + +#endif /* CHTYPES_H */ + +/** @} */