mirror of
https://github.com/portapack-mayhem/mayhem-firmware.git
synced 2025-12-07 01:41:52 +00:00
ChibiOS 2.6.8, until I can figure out where to get it from git.
This commit is contained in:
Jared Boone
140
firmware/chibios/os/ports/GCC/AVR/chcore.c
Executable file
140
firmware/chibios/os/ports/GCC/AVR/chcore.c
Executable file
@@ -0,0 +1,140 @@
|
||||
/*
|
||||
ChibiOS/RT - Copyright (C) 2006,2007,2008,2009,2010,
|
||||
2011,2012,2013 Giovanni Di Sirio.
|
||||
|
||||
This file is part of ChibiOS/RT.
|
||||
|
||||
ChibiOS/RT 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/RT 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 <http://www.gnu.org/licenses/>.
|
||||
|
||||
---
|
||||
|
||||
A special exception to the GPL can be applied should you wish to distribute
|
||||
a combined work that includes ChibiOS/RT, without being obliged to provide
|
||||
the source code for any proprietary components. See the file exception.txt
|
||||
for full details of how and when the exception can be applied.
|
||||
*/
|
||||
|
||||
/**
|
||||
* @file AVR/chcore.c
|
||||
* @brief AVR architecture port code.
|
||||
*
|
||||
* @addtogroup AVR_CORE
|
||||
* @{
|
||||
*/
|
||||
|
||||
#include "ch.h"
|
||||
|
||||
/**
|
||||
* @brief Performs a context switch between two threads.
|
||||
* @details This is the most critical code in any port, this function
|
||||
* is responsible for the context switch between 2 threads.
|
||||
* @note The implementation of this code affects <b>directly</b> the context
|
||||
* switch performance so optimize here as much as you can.
|
||||
* @note The function is declared as a weak symbol, it is possible to
|
||||
* redefine it in your application code.
|
||||
*
|
||||
* @param[in] ntp the thread to be switched in
|
||||
* @param[in] otp the thread to be switched out
|
||||
*/
|
||||
#if !defined(__DOXYGEN__)
|
||||
__attribute__((naked, weak))
|
||||
#endif
|
||||
void port_switch(Thread *ntp, Thread *otp) {
|
||||
|
||||
asm volatile ("push r2");
|
||||
asm volatile ("push r3");
|
||||
asm volatile ("push r4");
|
||||
asm volatile ("push r5");
|
||||
asm volatile ("push r6");
|
||||
asm volatile ("push r7");
|
||||
asm volatile ("push r8");
|
||||
asm volatile ("push r9");
|
||||
asm volatile ("push r10");
|
||||
asm volatile ("push r11");
|
||||
asm volatile ("push r12");
|
||||
asm volatile ("push r13");
|
||||
asm volatile ("push r14");
|
||||
asm volatile ("push r15");
|
||||
asm volatile ("push r16");
|
||||
asm volatile ("push r17");
|
||||
asm volatile ("push r28");
|
||||
asm volatile ("push r29");
|
||||
|
||||
asm volatile ("movw r30, r22");
|
||||
asm volatile ("in r0, 0x3d");
|
||||
asm volatile ("std Z+5, r0");
|
||||
asm volatile ("in r0, 0x3e");
|
||||
asm volatile ("std Z+6, r0");
|
||||
|
||||
asm volatile ("movw r30, r24");
|
||||
asm volatile ("ldd r0, Z+5");
|
||||
asm volatile ("out 0x3d, r0");
|
||||
asm volatile ("ldd r0, Z+6");
|
||||
asm volatile ("out 0x3e, r0");
|
||||
|
||||
asm volatile ("pop r29");
|
||||
asm volatile ("pop r28");
|
||||
asm volatile ("pop r17");
|
||||
asm volatile ("pop r16");
|
||||
asm volatile ("pop r15");
|
||||
asm volatile ("pop r14");
|
||||
asm volatile ("pop r13");
|
||||
asm volatile ("pop r12");
|
||||
asm volatile ("pop r11");
|
||||
asm volatile ("pop r10");
|
||||
asm volatile ("pop r9");
|
||||
asm volatile ("pop r8");
|
||||
asm volatile ("pop r7");
|
||||
asm volatile ("pop r6");
|
||||
asm volatile ("pop r5");
|
||||
asm volatile ("pop r4");
|
||||
asm volatile ("pop r3");
|
||||
asm volatile ("pop r2");
|
||||
asm volatile ("ret");
|
||||
}
|
||||
|
||||
/**
|
||||
* @brief Halts the system.
|
||||
* @details This function is invoked by the operating system when an
|
||||
* unrecoverable error is detected (for example because a programming
|
||||
* error in the application code that triggers an assertion while in
|
||||
* debug mode).
|
||||
* @note The function is declared as a weak symbol, it is possible to
|
||||
* redefine it in your application code.
|
||||
*/
|
||||
#if !defined(__DOXYGEN__)
|
||||
__attribute__((weak))
|
||||
#endif
|
||||
void port_halt(void) {
|
||||
|
||||
port_disable();
|
||||
while (TRUE) {
|
||||
}
|
||||
}
|
||||
|
||||
/**
|
||||
* @brief Start a thread by invoking its work function.
|
||||
* @details If the work function returns @p chThdExit() is automatically
|
||||
* invoked.
|
||||
*/
|
||||
void _port_thread_start(void) {
|
||||
|
||||
chSysUnlock();
|
||||
asm volatile ("movw r24, r4");
|
||||
asm volatile ("movw r30, r2");
|
||||
asm volatile ("icall");
|
||||
asm volatile ("call chThdExit");
|
||||
}
|
||||
|
||||
/** @} */
|
||||
332
firmware/chibios/os/ports/GCC/AVR/chcore.h
Executable file
332
firmware/chibios/os/ports/GCC/AVR/chcore.h
Executable file
@@ -0,0 +1,332 @@
|
||||
/*
|
||||
ChibiOS/RT - Copyright (C) 2006,2007,2008,2009,2010,
|
||||
2011,2012,2013 Giovanni Di Sirio.
|
||||
|
||||
This file is part of ChibiOS/RT.
|
||||
|
||||
ChibiOS/RT 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/RT 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 <http://www.gnu.org/licenses/>.
|
||||
|
||||
---
|
||||
|
||||
A special exception to the GPL can be applied should you wish to distribute
|
||||
a combined work that includes ChibiOS/RT, without being obliged to provide
|
||||
the source code for any proprietary components. See the file exception.txt
|
||||
for full details of how and when the exception can be applied.
|
||||
*/
|
||||
|
||||
/**
|
||||
* @file AVR/chcore.h
|
||||
* @brief AVR architecture port macros and structures.
|
||||
*
|
||||
* @addtogroup AVR_CORE
|
||||
* @{
|
||||
*/
|
||||
|
||||
#ifndef _CHCORE_H_
|
||||
#define _CHCORE_H_
|
||||
|
||||
#include <avr/io.h>
|
||||
#include <avr/interrupt.h>
|
||||
|
||||
#if CH_DBG_ENABLE_STACK_CHECK
|
||||
#error "option CH_DBG_ENABLE_STACK_CHECK not supported by this port"
|
||||
#endif
|
||||
|
||||
/**
|
||||
* @brief If enabled allows the idle thread to enter a low power mode.
|
||||
*/
|
||||
#ifndef ENABLE_WFI_IDLE
|
||||
#define ENABLE_WFI_IDLE 0
|
||||
#endif
|
||||
|
||||
/**
|
||||
* @brief Macro defining the AVR architecture.
|
||||
*/
|
||||
#define CH_ARCHITECTURE_AVR
|
||||
|
||||
/**
|
||||
* @brief Name of the implemented architecture.
|
||||
*/
|
||||
#define CH_ARCHITECTURE_NAME "AVR"
|
||||
|
||||
/**
|
||||
* @brief Name of the architecture variant (optional).
|
||||
*/
|
||||
#define CH_CORE_VARIANT_NAME "MegaAVR"
|
||||
|
||||
/**
|
||||
* @brief Name of the compiler supported by this port.
|
||||
*/
|
||||
#define CH_COMPILER_NAME "GCC " __VERSION__
|
||||
|
||||
/**
|
||||
* @brief Port-specific information string.
|
||||
*/
|
||||
#define CH_PORT_INFO "None"
|
||||
|
||||
/**
|
||||
* @brief 8 bits stack and memory alignment enforcement.
|
||||
*/
|
||||
typedef uint8_t stkalign_t;
|
||||
|
||||
/**
|
||||
* @brief Interrupt saved context.
|
||||
* @details This structure represents the stack frame saved during a
|
||||
* preemption-capable interrupt handler.
|
||||
* @note The field @p _next is not part of the context, it represents the
|
||||
* offset of the structure relative to the stack pointer.
|
||||
*/
|
||||
struct extctx {
|
||||
uint8_t _next;
|
||||
uint8_t r31;
|
||||
uint8_t r30;
|
||||
uint8_t r27;
|
||||
uint8_t r26;
|
||||
uint8_t r25;
|
||||
uint8_t r24;
|
||||
uint8_t r23;
|
||||
uint8_t r22;
|
||||
uint8_t r21;
|
||||
uint8_t r20;
|
||||
uint8_t r19;
|
||||
uint8_t r18;
|
||||
uint8_t sr;
|
||||
uint8_t r1;
|
||||
uint8_t r0;
|
||||
uint16_t pc;
|
||||
};
|
||||
|
||||
/**
|
||||
* @brief System saved context.
|
||||
* @details This structure represents the inner stack frame during a context
|
||||
* switching.
|
||||
* @note The field @p _next is not part of the context, it represents the
|
||||
* offset of the structure relative to the stack pointer.
|
||||
*/
|
||||
struct intctx {
|
||||
uint8_t _next;
|
||||
uint8_t r29;
|
||||
uint8_t r28;
|
||||
uint8_t r17;
|
||||
uint8_t r16;
|
||||
uint8_t r15;
|
||||
uint8_t r14;
|
||||
uint8_t r13;
|
||||
uint8_t r12;
|
||||
uint8_t r11;
|
||||
uint8_t r10;
|
||||
uint8_t r9;
|
||||
uint8_t r8;
|
||||
uint8_t r7;
|
||||
uint8_t r6;
|
||||
uint8_t r5;
|
||||
uint8_t r4;
|
||||
uint8_t r3;
|
||||
uint8_t r2;
|
||||
uint8_t pcl;
|
||||
uint8_t pch;
|
||||
};
|
||||
|
||||
/**
|
||||
* @brief Platform dependent part of the @p Thread structure.
|
||||
* @details In the AVR port this structure just holds a pointer to the
|
||||
* @p intctx structure representing the stack pointer at the time
|
||||
* of the context switch.
|
||||
*/
|
||||
struct context {
|
||||
struct intctx *sp;
|
||||
};
|
||||
|
||||
/**
|
||||
* @brief Platform dependent part of the @p chThdCreateI() API.
|
||||
* @details This code usually setup the context switching frame represented
|
||||
* by an @p intctx structure.
|
||||
*/
|
||||
#define SETUP_CONTEXT(workspace, wsize, pf, arg) { \
|
||||
tp->p_ctx.sp = (struct intctx*)((uint8_t *)workspace + wsize - \
|
||||
sizeof(struct intctx)); \
|
||||
tp->p_ctx.sp->r2 = (int)pf; \
|
||||
tp->p_ctx.sp->r3 = (int)pf >> 8; \
|
||||
tp->p_ctx.sp->r4 = (int)arg; \
|
||||
tp->p_ctx.sp->r5 = (int)arg >> 8; \
|
||||
tp->p_ctx.sp->pcl = (int)_port_thread_start >> 8; \
|
||||
tp->p_ctx.sp->pch = (int)_port_thread_start; \
|
||||
}
|
||||
|
||||
/**
|
||||
* @brief Stack size for the system idle thread.
|
||||
* @details This size depends on the idle thread implementation, usually
|
||||
* the idle thread should take no more space than those reserved
|
||||
* by @p PORT_INT_REQUIRED_STACK.
|
||||
* @note In this port it is set to 8.
|
||||
*/
|
||||
#ifndef PORT_IDLE_THREAD_STACK_SIZE
|
||||
#define PORT_IDLE_THREAD_STACK_SIZE 8
|
||||
#endif
|
||||
|
||||
/**
|
||||
* @brief Per-thread stack overhead for interrupts servicing.
|
||||
* @details This constant is used in the calculation of the correct working
|
||||
* area size.
|
||||
* This value can be zero on those architecture where there is a
|
||||
* separate interrupt stack and the stack space between @p intctx and
|
||||
* @p extctx is known to be zero.
|
||||
* @note In this port the default is 32 bytes per thread.
|
||||
*/
|
||||
#ifndef PORT_INT_REQUIRED_STACK
|
||||
#define PORT_INT_REQUIRED_STACK 32
|
||||
#endif
|
||||
|
||||
/**
|
||||
* @brief Enforces a correct alignment for a stack area size value.
|
||||
*/
|
||||
#define STACK_ALIGN(n) ((((n) - 1) | (sizeof(stkalign_t) - 1)) + 1)
|
||||
|
||||
/**
|
||||
* @brief Computes the thread working area global size.
|
||||
*/
|
||||
#define THD_WA_SIZE(n) STACK_ALIGN(sizeof(Thread) + \
|
||||
(sizeof(struct intctx) - 1) + \
|
||||
(sizeof(struct extctx) - 1) + \
|
||||
(n) + (PORT_INT_REQUIRED_STACK))
|
||||
|
||||
/**
|
||||
* @brief Static working area allocation.
|
||||
* @details This macro is used to allocate a static thread working area
|
||||
* aligned as both position and size.
|
||||
*/
|
||||
#define WORKING_AREA(s, n) stkalign_t s[THD_WA_SIZE(n) / sizeof(stkalign_t)]
|
||||
|
||||
/**
|
||||
* @brief IRQ prologue code.
|
||||
* @details This macro must be inserted at the start of all IRQ handlers
|
||||
* enabled to invoke system APIs.
|
||||
* @note This code tricks the compiler to save all the specified registers
|
||||
* by "touching" them.
|
||||
*/
|
||||
#define PORT_IRQ_PROLOGUE() { \
|
||||
asm ("" : : : "r18", "r19", "r20", "r21", "r22", "r23", "r24", \
|
||||
"r25", "r26", "r27", "r30", "r31"); \
|
||||
}
|
||||
|
||||
/**
|
||||
* @brief IRQ epilogue code.
|
||||
* @details This macro must be inserted at the end of all IRQ handlers
|
||||
* enabled to invoke system APIs.
|
||||
*/
|
||||
#define PORT_IRQ_EPILOGUE() { \
|
||||
dbg_check_lock(); \
|
||||
if (chSchIsPreemptionRequired()) \
|
||||
chSchDoReschedule(); \
|
||||
dbg_check_unlock(); \
|
||||
}
|
||||
|
||||
/**
|
||||
* @brief IRQ handler function declaration.
|
||||
* @note @p id can be a function name or a vector number depending on the
|
||||
* port implementation.
|
||||
*/
|
||||
#define PORT_IRQ_HANDLER(id) ISR(id)
|
||||
|
||||
/**
|
||||
* @brief Port-related initialization code.
|
||||
* @note This function is empty in this port.
|
||||
*/
|
||||
#define port_init()
|
||||
|
||||
/**
|
||||
* @brief Kernel-lock action.
|
||||
* @details Usually this function just disables interrupts but may perform more
|
||||
* actions.
|
||||
* @note Implemented as global interrupt disable.
|
||||
*/
|
||||
#define port_lock() asm volatile ("cli" : : : "memory")
|
||||
|
||||
/**
|
||||
* @brief Kernel-unlock action.
|
||||
* @details Usually this function just enables interrupts but may perform more
|
||||
* actions.
|
||||
* @note Implemented as global interrupt enable.
|
||||
*/
|
||||
#define port_unlock() asm volatile ("sei" : : : "memory")
|
||||
|
||||
/**
|
||||
* @brief Kernel-lock action from an interrupt handler.
|
||||
* @details This function is invoked before invoking I-class APIs from
|
||||
* interrupt handlers. The implementation is architecture dependent,
|
||||
* in its simplest form it is void.
|
||||
* @note This function is empty in this port.
|
||||
*/
|
||||
#define port_lock_from_isr()
|
||||
|
||||
/**
|
||||
* @brief Kernel-unlock action from an interrupt handler.
|
||||
* @details This function is invoked after invoking I-class APIs from interrupt
|
||||
* handlers. The implementation is architecture dependent, in its
|
||||
* simplest form it is void.
|
||||
* @note This function is empty in this port.
|
||||
*/
|
||||
#define port_unlock_from_isr()
|
||||
|
||||
/**
|
||||
* @brief Disables all the interrupt sources.
|
||||
* @note Of course non-maskable interrupt sources are not included.
|
||||
* @note Implemented as global interrupt disable.
|
||||
*/
|
||||
#define port_disable() asm volatile ("cli" : : : "memory")
|
||||
|
||||
/**
|
||||
* @brief Disables the interrupt sources below kernel-level priority.
|
||||
* @note Interrupt sources above kernel level remains enabled.
|
||||
* @note Same as @p port_disable() in this port, there is no difference
|
||||
* between the two states.
|
||||
*/
|
||||
#define port_suspend() asm volatile ("cli" : : : "memory")
|
||||
|
||||
/**
|
||||
* @brief Enables all the interrupt sources.
|
||||
* @note Implemented as global interrupt enable.
|
||||
*/
|
||||
#define port_enable() asm volatile ("sei" : : : "memory")
|
||||
|
||||
/**
|
||||
* @brief Enters an architecture-dependent IRQ-waiting mode.
|
||||
* @details The function is meant to return when an interrupt becomes pending.
|
||||
* The simplest implementation is an empty function or macro but this
|
||||
* would not take advantage of architecture-specific power saving
|
||||
* modes.
|
||||
* @note This port function is implemented as inlined code for performance
|
||||
* reasons.
|
||||
*/
|
||||
#if ENABLE_WFI_IDLE != 0
|
||||
#define port_wait_for_interrupt() { \
|
||||
asm volatile ("sleep" : : : "memory"); \
|
||||
}
|
||||
#else
|
||||
#define port_wait_for_interrupt()
|
||||
#endif
|
||||
|
||||
#ifdef __cplusplus
|
||||
extern "C" {
|
||||
#endif
|
||||
void port_switch(Thread *ntp, Thread *otp);
|
||||
void port_halt(void);
|
||||
void _port_thread_start(void);
|
||||
#ifdef __cplusplus
|
||||
}
|
||||
#endif
|
||||
|
||||
#endif /* _CHCORE_H_ */
|
||||
|
||||
/** @} */
|
||||
87
firmware/chibios/os/ports/GCC/AVR/chtypes.h
Executable file
87
firmware/chibios/os/ports/GCC/AVR/chtypes.h
Executable file
@@ -0,0 +1,87 @@
|
||||
/*
|
||||
ChibiOS/RT - Copyright (C) 2006,2007,2008,2009,2010,
|
||||
2011,2012,2013 Giovanni Di Sirio.
|
||||
|
||||
This file is part of ChibiOS/RT.
|
||||
|
||||
ChibiOS/RT 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/RT 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 <http://www.gnu.org/licenses/>.
|
||||
|
||||
---
|
||||
|
||||
A special exception to the GPL can be applied should you wish to distribute
|
||||
a combined work that includes ChibiOS/RT, without being obliged to provide
|
||||
the source code for any proprietary components. See the file exception.txt
|
||||
for full details of how and when the exception can be applied.
|
||||
*/
|
||||
|
||||
/**
|
||||
* @file AVR/chtypes.h
|
||||
* @brief AVR architecture port system types.
|
||||
*
|
||||
* @addtogroup AVR_CORE
|
||||
* @{
|
||||
*/
|
||||
|
||||
#ifndef _CHTYPES_H_
|
||||
#define _CHTYPES_H_
|
||||
|
||||
#include <stddef.h>
|
||||
#include <stdint.h>
|
||||
#include <stdbool.h>
|
||||
|
||||
typedef bool bool_t; /**< Fast boolean type. */
|
||||
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 uint8_t tprio_t; /**< Thread priority. */
|
||||
typedef int16_t msg_t; /**< Inter-thread message. */
|
||||
typedef uint8_t eventid_t; /**< Event Id. */
|
||||
typedef uint8_t eventmask_t; /**< Event mask. */
|
||||
typedef uint8_t flagsmask_t; /**< Event flags. */
|
||||
typedef uint16_t systime_t; /**< System time. */
|
||||
typedef int8_t cnt_t; /**< Resources counter. */
|
||||
|
||||
/**
|
||||
* @brief Inline function modifier.
|
||||
*/
|
||||
#define INLINE inline
|
||||
|
||||
/**
|
||||
* @brief ROM constant modifier.
|
||||
* @note It is set to use the "const" keyword in this port.
|
||||
*/
|
||||
#define ROMCONST const
|
||||
|
||||
/**
|
||||
* @brief Packed structure modifier (within).
|
||||
* @note It uses the "packed" GCC attribute.
|
||||
*/
|
||||
#define PACK_STRUCT_STRUCT __attribute__((packed))
|
||||
|
||||
/**
|
||||
* @brief Packed structure modifier (before).
|
||||
* @note Empty in this port.
|
||||
*/
|
||||
#define PACK_STRUCT_BEGIN
|
||||
|
||||
/**
|
||||
* @brief Packed structure modifier (after).
|
||||
* @note Empty in this port.
|
||||
*/
|
||||
#define PACK_STRUCT_END
|
||||
|
||||
#endif /* _CHTYPES_H_ */
|
||||
|
||||
/** @} */
|
||||
94
firmware/chibios/os/ports/GCC/AVR/port.dox
Executable file
94
firmware/chibios/os/ports/GCC/AVR/port.dox
Executable file
@@ -0,0 +1,94 @@
|
||||
/*
|
||||
ChibiOS/RT - Copyright (C) 2006,2007,2008,2009,2010,
|
||||
2011,2012,2013 Giovanni Di Sirio.
|
||||
|
||||
This file is part of ChibiOS/RT.
|
||||
|
||||
ChibiOS/RT 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/RT 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 <http://www.gnu.org/licenses/>.
|
||||
|
||||
---
|
||||
|
||||
A special exception to the GPL can be applied should you wish to distribute
|
||||
a combined work that includes ChibiOS/RT, without being obliged to provide
|
||||
the source code for any proprietary components. See the file exception.txt
|
||||
for full details of how and when the exception can be applied.
|
||||
*/
|
||||
|
||||
/**
|
||||
* @defgroup AVR MegaAVR
|
||||
* @details AVR port for the GCC compiler.
|
||||
*
|
||||
* @section AVR_STATES Mapping of the System States in the AVR port
|
||||
* The ChibiOS/RT logical @ref system_states are mapped as follow in the AVR
|
||||
* port:
|
||||
* - <b>Init</b>. This state is represented by the startup code and the
|
||||
* initialization code before @p chSysInit() is executed. It has not a
|
||||
* special hardware state associated.
|
||||
* - <b>Normal</b>. This is the state the system has after executing
|
||||
* @p chSysInit(). Interrupts are enabled.
|
||||
* - <b>Suspended</b>. Interrupts are disabled.
|
||||
* - <b>Disabled</b>. Interrupts are disabled. This state is equivalent to the
|
||||
* Suspended state because there are no fast interrupts in this architecture.
|
||||
* - <b>Sleep</b>. This state is entered with the execution of the specific
|
||||
* instruction @p <b>sleep</b>.
|
||||
* - <b>S-Locked</b>. Interrupts are disabled.
|
||||
* - <b>I-Locked</b>. This state is equivalent to the SRI state, the
|
||||
* @p chSysLockI() and @p chSysUnlockI() APIs do nothing (still use them in
|
||||
* order to formally change state because this may change).
|
||||
* - <b>Serving Regular Interrupt</b>. Normal interrupt service code.
|
||||
* - <b>Serving Fast Interrupt</b>. Not present in this architecture.
|
||||
* - <b>Serving Non-Maskable Interrupt</b>. Not present in this architecture.
|
||||
* - <b>Halted</b>. Implemented as an infinite loop with interrupts disabled.
|
||||
* .
|
||||
* @section AVR_NOTES The AVR port notes
|
||||
* - The AVR does not have a dedicated interrupt stack, make sure to reserve
|
||||
* enough stack space for interrupts in each thread stack. This can be done
|
||||
* by modifying the @p INT_REQUIRED_STACK macro into
|
||||
* <b>./ports/AVR/chcore.h</b>.
|
||||
* .
|
||||
* @ingroup gcc
|
||||
*/
|
||||
|
||||
/**
|
||||
* @defgroup AVR_CONF Configuration Options
|
||||
* @details AVR Configuration Options. The AVR port allows some
|
||||
* architecture-specific configurations settings that can be overridden
|
||||
* by redefining them in @p chconf.h. Usually there is no need to change
|
||||
* the default values.
|
||||
* - @p INT_REQUIRED_STACK, this value represent the amount of stack space
|
||||
* used by the interrupt handlers.<br>
|
||||
* The default for this value is @p 32, this space is allocated for each
|
||||
* thread so be careful in order to not waste precious RAM space.
|
||||
* - @p IDLE_THREAD_STACK_SIZE, stack area size to be assigned to the IDLE
|
||||
* thread. Usually there is no need to change this value unless inserting
|
||||
* code in the IDLE thread hook macro.
|
||||
* .
|
||||
* @ingroup AVR
|
||||
*/
|
||||
|
||||
/**
|
||||
* @defgroup AVR_CORE Core Port Implementation
|
||||
* @details AVR specific port code, structures and macros.
|
||||
*
|
||||
* @ingroup AVR
|
||||
*/
|
||||
|
||||
/**
|
||||
* @defgroup AVR_STARTUP Startup Support
|
||||
* @details ChibiOS/RT doed not provide startup files for the AVR, there
|
||||
* are no special startup requirement so the normal toolchain-provided
|
||||
* startup files can be used.
|
||||
*
|
||||
* @ingroup AVR
|
||||
*/
|
||||
6
firmware/chibios/os/ports/GCC/AVR/port.mk
Executable file
6
firmware/chibios/os/ports/GCC/AVR/port.mk
Executable file
@@ -0,0 +1,6 @@
|
||||
# List of the ChibiOS/RT AVR port files.
|
||||
PORTSRC = ${CHIBIOS}/os/ports/GCC/AVR/chcore.c
|
||||
|
||||
PORTASM =
|
||||
|
||||
PORTINC = ${CHIBIOS}/os/ports/GCC/AVR
|
||||
Reference in New Issue
Block a user