| /* ---------------------------------------------------------------------------- | |
| * ATMEL Microcontroller Software Support | |
| * ---------------------------------------------------------------------------- | |
| * Copyright (c) 2012, Atmel Corporation | |
| * All rights reserved. | |
| * | |
| * Redistribution and use in source and binary forms, with or without | |
| * modification, are permitted provided that the following conditions are met: | |
| * | |
| * - Redistributions of source code must retain the above copyright notice, | |
| * this list of conditions and the disclaimer below. | |
| * | |
| * Atmel's name may not be used to endorse or promote products derived from | |
| * this software without specific prior written permission. | |
| * | |
| * DISCLAIMER: THIS SOFTWARE IS PROVIDED BY ATMEL "AS IS" AND ANY EXPRESS OR | |
| * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF | |
| * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT ARE | |
| * DISCLAIMED. IN NO EVENT SHALL ATMEL BE LIABLE FOR ANY DIRECT, INDIRECT, | |
| * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT | |
| * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, | |
| * OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF | |
| * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING | |
| * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, | |
| * EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. | |
| */ | |
| /* | |
| *------------------------------------------------------------------------------ | |
| * MON_DATA_BASE area is used by the monitor to save and restore | |
| * all resources affected by the context switching. | |
| * - All general purpose ARM registers | |
| * - Any coprocessor registers, such as NEON or VFP | |
| * (not needed in our case as we are not dealing with floating point in SWd) | |
| * - Any world-dependant processor configuration state in CP15 | |
| * (TODO: what does it cover?) | |
| * | |
| * Note: we consider that there is no IRQ nor FIQ management in SWd. | |
| * | |
| * r0-r7, r12 registers are considered as corruptbile | |
| * r8-r11 and lr, sp and cpsr needs to be properly saved and restored | |
| * NWd call to SWd function: | |
| * Save -> r8-r11, svc_lr and svc_sp, cpsr | |
| * Restore -> svc_sp, and cpsr | |
| * SWd return after completing service function execution: | |
| * Save -> svc_lr, svc_sp, and cpsr | |
| * Restore -> r8-r11, svc_lr and svc_sp, cpsr | |
| *------------------------------------------------------------------------------ | |
| */ | |
| #ifndef __MON_MACROS_H__ | |
| #define __MON_MACROS_H__ | |
| /* | |
| * Secure Configuration Register | |
| */ | |
| #define NS_BIT 0x01 | |
| #define SCR_NW_BIT 0x25 | |
| #define SCR_SW_BIT 0x22 | |
| /* | |
| *---------------------------------------------------------------------------- | |
| * Standard definitions of ARM processor mode bits | |
| *---------------------------------------------------------------------------- | |
| */ | |
| #define MODE_MSK 0x1F // Bit mask for mode bits in CPSR | |
| #define ARM_MODE_ABT 0x17 | |
| #define ARM_MODE_FIQ 0x11 | |
| #define ARM_MODE_IRQ 0x12 | |
| #define ARM_MODE_SVC 0x13 | |
| #define ARM_MODE_MON 0x16 | |
| #define ARM_MODE_SYS 0x1F | |
| #define ARM_MODE_UND 0x1B | |
| #define I_BIT 0x80 | |
| #define F_BIT 0x40 | |
| #define CHANGE_TO_SVC_MODE asm volatile ("CPS #0x13"); | |
| #define CHANGE_TO_MON_MODE asm volatile ("CPS #0x16"); | |
| #define INITIAL_NWD_STATE 0x1D3 | |
| #define Struct_size 0x54 | |
| /* Stacks configuration */ | |
| #define STACK_SIZE 0x1FF | |
| #define MON_DATA_BASE_SIZE 0x100 | |
| /* Stacks are descending */ | |
| #if defined (ddram) | |
| #define MON_DATA_BASE 0x23FFFE00 | |
| #define MON_DATA_END 0x24000000 | |
| #elif defined (sram) | |
| #define MON_DATA_BASE 0x21FE00 | |
| #define MON_DATA_END 0x220000 | |
| #else | |
| #define MON_DATA_BASE 0x23FFFE00 | |
| #define MON_DATA_END 0x24000000 | |
| #endif | |
| #define MON_DATA_SIZE ((MON_DATA_END - MON_DATA_BASE) >> 2) | |
| #endif /* #ifndef __MON_MACROS_H__ */ | |