nuttx/arch/arm/src/stm32/stm32_vectors.S
patacongo 00856c8cae When running from DFU load, need to set NVIC vector address
git-svn-id: svn://svn.code.sf.net/p/nuttx/code/trunk@2129 42af7a65-404d-4744-a932-0658087f49c3
2009-10-13 23:37:06 +00:00

533 lines
30 KiB
ArmAsm

/************************************************************************************
* arch/arm/src/stm32/stm32_vectors.S
* arch/arm/src/chip/stm32_vectors.S
*
* Copyright (C) 2009 Gregory Nutt. All rights reserved.
* Author: Gregory Nutt <spudmonkey@racsa.co.cr>
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in
* the documentation and/or other materials provided with the
* distribution.
* 3. Neither the name NuttX nor the names of its contributors may be
* used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
* COPYRIGHT OWNER OR CONTRIBUTORS 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.
*
************************************************************************************/
/************************************************************************************
* Included Files
************************************************************************************/
#include <nuttx/config.h>
#include <arch/irq.h>
/************************************************************************************
* Preprocessor Definitions
************************************************************************************/
/* Memory Map:
*
* 0x0800:0000 - Beginning of FLASH. Address of vectors (if not using bootloader)
* Mapped to address 0x0000:0000 at boot time.
* 0x0800:3000 - Address of vectors if using bootloader
* 0x0803:ffff - End of flash
* 0x2000:0000 - Start of SRAM and start of .data (_sdata)
* - End of .data (_edata) abd start of .bss (_sbss)
* - End of .bss (_ebss) and bottom of idle stack
* - _ebss + CONFIG_IDLETHREAD_STACKSIZE = end of idle stack, start of heap
* 0x2000:ffff - End of SRAM and end of heap
*/
#define IDLE_STACK (_ebss+CONFIG_IDLETHREAD_STACKSIZE-4)
#define HEAP_BASE (_ebss+CONFIG_IDLETHREAD_STACKSIZE-4)
/* The Cortex-M3 return from interrupt is unusual. We provide the following special
* address to the BX instruction. The particular value also forces a return to
* thread mode and covers state from the main stack point, the MSP (vs. the MSP).
*/
#define EXC_RETURN 0xfffffff9
/************************************************************************************
* Global Symbols
************************************************************************************/
.globl __start
.syntax unified
.thumb
.file "stm32_vectors.S"
/************************************************************************************
* Macros
************************************************************************************/
/* On entry into an IRQ, the hardware automatically saves the xPSR, PC, LR, R12, R0-R3
* registers on the stack, then branches to an instantantiation of the following
* macro. This macro simply loads the IRQ number into R0, then jumps to the common
* IRQ handling logic.
*/
.macro HANDLER, label, irqno
.thumb_func
\label:
mov r0, #\irqno
b stm32_common
.endm
/************************************************************************************
* Vectors
************************************************************************************/
.section .vectors, "ax"
.code 16
.align 2
.globl stm32_vectors
.type stm32_vectors, function
stm32_vectors:
/* Processor Exceptions */
.word IDLE_STACK /* Vector 0: Reset stack pointer */
.word __start /* Vector 1: Reset vector */
.word stm32_nmi /* Vector 2: Non-Maskable Interrupt (NMI) */
.word stm32_hardfault /* Vector 3: Hard fault */
.word stm32_mpu /* Vector 4: Memory management (MPU) */
.word stm32_busfault /* Vector 5: Bus fault */
.word stm32_usagefault /* Vector 6: Usage fault */
.word stm32_reserved /* Vector 7: Reserved */
.word stm32_reserved /* Vector 8: Reserved */
.word stm32_reserved /* Vector 9: Reserved */
.word stm32_reserved /* Vector 10: Reserved */
.word stm32_svcall /* Vector 11: SVC call */
.word stm32_dbgmonitor /* Vector 12: Debug monitor */
.word stm32_reserved /* Vector 13: Reserved */
.word stm32_pendsv /* Vector 14: Pendable system service request */
.word stm32_systick /* Vector 15: System tick */
/* External Interrupts */
#ifdef CONFIG_STM32_CONNECTIVITY_LINE
.word stm32_wwdg /* Vector 16+0: Window Watchdog interrupt */
.word stm32_pvd /* Vector 16+1: PVD through EXTI Line detection interrupt */
.word stm32_tamper /* Vector 16+2: Tamper interrupt */
.word stm32_rtc /* Vector 16+3: RTC global interrupt */
.word stm32_flash /* Vector 16+4: Flash global interrupt */
.word stm32_rcc /* Vector 16+5: RCC global interrupt */
.word stm32_exti0 /* Vector 16+6: EXTI Line 0 interrupt */
.word stm32_exti1 /* Vector 16+7: EXTI Line 1 interrupt */
.word stm32_exti2 /* Vector 16+8: EXTI Line 2 interrupt */
.word stm32_exti3 /* Vector 16+9: EXTI Line 3 interrupt */
.word stm32_exti4 /* Vector 16+10: EXTI Line 4 interrupt */
.word stm32_dma1ch1 /* Vector 16+11: DMA1 Channel 1 global interrupt */
.word stm32_dma1ch2 /* Vector 16+12: DMA1 Channel 2 global interrupt */
.word stm32_dma1ch3 /* Vector 16+13: DMA1 Channel 3 global interrupt */
.word stm32_dma1ch4 /* Vector 16+14: DMA1 Channel 4 global interrupt */
.word stm32_dma1ch5 /* Vector 16+15: DMA1 Channel 5 global interrupt */
.word stm32_dma1ch6 /* Vector 16+16: DMA1 Channel 7 global interrupt */
.word stm32_adc12 /* Vector 16+18: ADC1 and ADC2 global interrupt */
.word stm32_can1tx /* Vector 16+19: CAN1 TX interrupts */
.word stm32_can1rx0 /* Vector 16+20: CAN1 RX0 interrupts */
.word stm32_can1rx /* Vector 16+21: CAN1 RX1 interrupt */
.word stm32_can1sce /* Vector 16+22: CAN1 SCE interrupt */
.word stm32_exti95 /* Vector 16+23: EXTI Line[9:5] interrupts */
.word stm32_tim1brk /* Vector 16+24: TIM1 Break interrupt */
.word stm32_tim1up /* Vector 16+25: TIM1 Update interrupt */
.word stm32_tim1trgcom /* Vector 16+26: TIM1 Trigger and Commutation interrupts */
.word stm32_tim1cc /* Vector 16+27: TIM1 Capture Compare interrupt */
.word stm32_tim2 /* Vector 16+28: TIM2 global interrupt */
.word stm32_tim3 /* Vector 16+29: TIM3 global interrupt */
.word stm32_tim4 /* Vector 16+30: TIM4 global interrupt */
.word stm32_i2c1ev /* Vector 16+31: I2C1 event interrupt */
.word stm32_i2c1er /* Vector 16+32: I2C1 error interrupt */
.word stm32_i2c2ev /* Vector 16+33: I2C2 event interrupt */
.word stm32_i2c2er /* Vector 16+34: I2C2 error interrupt */
.word stm32_spi1 /* Vector 16+35: SPI1 global interrupt */
.word stm32_spi2 /* Vector 16+36: SPI2 global interrupt */
.word stm32_usart1 /* Vector 16+37: USART1 global interrupt */
.word stm32_usart2 /* Vector 16+38: USART2 global interrupt */
.word stm32_usart3 /* Vector 16+39: USART3 global interrupt */
.word stm32_exti1510 /* Vector 16+40: EXTI Line[15:10] interrupts */
.word stm32_rtcalr /* Vector 16+41: RTC alarm through EXTI line interrupt */
.word stm32_otgfswkup /* Vector 16+42: USB On-The-Go FS Wakeup through EXTI line interrupt */
.word stm32_reserved /* Vector 16+43: Reserved */
.word stm32_reserved /* Vector 16+44: Reserved */
.word stm32_reserved /* Vector 16+45: Reserved */
.word stm32_reserved /* Vector 16+46: Reserved */
.word stm32_reserved /* Vector 16+47: Reserved */
.word stm32_reserved /* Vector 16+48: Reserved */
.word stm32_reserved /* Vector 16+49: Reserved */
.word stm32_tim5 /* Vector 16+50: TIM5 global interrupt */
.word stm32_spi3 /* Vector 16+51: SPI3 global interrupt */
.word stm32_uart4 /* Vector 16+52: UART4 global interrupt */
.word stm32_uart5 /* Vector 16+53: UART5 global interrupt */
.word stm32_tim6 /* Vector 16+54: TIM6 global interrupt */
.word stm32_tim7 /* Vector 16+55: TIM7 global interrupt */
.word stm32_dma2ch1 /* Vector 16+56: DMA2 Channel 1 global interrupt */
.word stm32_dma2ch2 /* Vector 16+57: DMA2 Channel 2 global interrupt */
.word stm32_dma2ch3 /* Vector 16+58: DMA2 Channel 3 global interrupt */
.word stm32_dma2ch4 /* Vector 16+59: DMA2 Channel 4 global interrupt */
.word stm32_dma2ch5 /* Vector 16+60: DMA2 Channel 5 global interrupt */
.word stm32_eth /* Vector 16+61: Ethernet global interrupt */
.word stm32_ethwkup /* Vector 16+62: Ethernet Wakeup through EXTI line interrupt */
.word stm32_can2tx /* Vector 16+63: CAN2 TX interrupts */
.word stm32_can2rx0 /* Vector 16+64: CAN2 RX0 interrupts */
.word stm32_can2rx1 /* Vector 16+65: CAN2 RX1 interrupt */
.word stm32_can2sce /* Vector 16+66: CAN2 SCE interrupt */
.word stm32_otgfs /* Vector 16+67: USB On The Go FS global interrupt */
#else
.word stm32_wwdg /* Vector 16+0: Window Watchdog interrupt */
.word stm32_pvd /* Vector 16+1: PVD through EXTI Line detection interrupt */
.word stm32_tamper /* Vector 16+2: Tamper interrupt */
.word stm32_rtc /* Vector 16+3: RTC global interrupt */
.word stm32_flash /* Vector 16+4: Flash global interrupt */
.word stm32_rcc /* Vector 16+5: RCC global interrupt */
.word stm32_exti0 /* Vector 16+6: EXTI Line 0 interrupt */
.word stm32_exti1 /* Vector 16+7: EXTI Line 1 interrupt */
.word stm32_exti2 /* Vector 16+8: EXTI Line 2 interrupt */
.word stm32_exti3 /* Vector 16+9: EXTI Line 3 interrupt */
.word stm32_exti4 /* Vector 16+10: EXTI Line 4 interrupt */
.word stm32_dma1ch1 /* Vector 16+11: DMA1 Channel 1 global interrupt */
.word stm32_dma1ch2 /* Vector 16+12: DMA1 Channel 2 global interrupt */
.word stm32_dma1ch3 /* Vector 16+13: DMA1 Channel 3 global interrupt */
.word stm32_dma1ch4 /* Vector 16+14: DMA1 Channel 4 global interrupt */
.word stm32_dma1ch5 /* Vector 16+15: DMA1 Channel 5 global interrupt */
.word stm32_dma1ch6 /* Vector 16+16: DMA1 Channel 6 global interrupt */
.word stm32_dma1ch7 /* Vector 16+17: DMA1 Channel 7 global interrupt */
.word stm32_adc12 /* Vector 16+18: ADC1 and ADC2 global interrupt */
.word stm32_usbhpcantx /* Vector 16+19: USB High Priority or CAN TX interrupts*/
.word stm32_usblpcanrx0 /* Vector 16+20: USB Low Priority or CAN RX0 interrupts*/
.word stm32_can1rx1 /* Vector 16+21: CAN1 RX1 interrupt */
.word stm32_can1sce /* Vector 16+22: CAN1 SCE interrupt */
.word stm32_exti95 /* Vector 16+23: EXTI Line[9:5] interrupts */
.word stm32_tim1brk /* Vector 16+24: TIM1 Break interrupt */
.word stm32_tim1up /* Vector 16+25: TIM1 Update interrupt */
.word stm32_tim1rtgcom /* Vector 16+26: TIM1 Trigger and Commutation interrupts */
.word stm32_tim1cc /* Vector 16+27: TIM1 Capture Compare interrupt */
.word stm32_tim2 /* Vector 16+28: TIM2 global interrupt */
.word stm32_tim3 /* Vector 16+29: TIM3 global interrupt */
.word stm32_tim4 /* Vector 16+30: TIM4 global interrupt */
.word stm32_i2c1ev /* Vector 16+31: I2C1 event interrupt */
.word stm32_i2c1er /* Vector 16+32: I2C1 error interrupt */
.word stm32_i2c2ev /* Vector 16+33: I2C2 event interrupt */
.word stm32_i2c2er /* Vector 16+34: I2C2 error interrupt */
.word stm32_spi1 /* Vector 16+35: SPI1 global interrupt */
.word stm32_spi2 /* Vector 16+36: SPI2 global interrupt */
.word stm32_usart1 /* Vector 16+37: USART1 global interrupt */
.word stm32_usart2 /* Vector 16+38: USART2 global interrupt */
.word stm32_usart3 /* Vector 16+39: USART3 global interrupt */
.word stm32_exti1510 /* Vector 16+40: EXTI Line[15:10] interrupts */
.word stm32_rtcalr /* Vector 16+41: RTC alarm through EXTI line interrupt */
.word stm32_usbwkup /* Vector 16+42: USB wakeup from suspend through EXTI line interrupt*/
.word stm32_tim8brk /* Vector 16+43: TIM8 Break interrupt */
.word stm32_tim8up /* Vector 16+44: TIM8 Update interrupt */
.word stm32_tim8trgcom /* Vector 16+45: TIM8 Trigger and Commutation interrupts */
.word stm32_tim8cc /* Vector 16+46: TIM8 Capture Compare interrupt */
.word stm32_adc3 /* Vector 16+47: ADC3 global interrupt */
.word stm32_fsmc /* Vector 16+48: FSMC global interrupt */
.word stm32_sdio /* Vector 16+49: SDIO global interrupt */
.word stm32_tim5 /* Vector 16+50: TIM5 global interrupt */
.word stm32_spi3 /* Vector 16+51: SPI3 global interrupt */
.word stm32_uart4 /* Vector 16+52: UART4 global interrupt */
.word stm32_uart5 /* Vector 16+53: UART5 global interrupt */
.word stm32_tim6 /* Vector 16+54: TIM6 global interrupt */
.word stm32_tim7 /* Vector 16+55: TIM7 global interrupt */
.word stm32_dma2ch1 /* Vector 16+56: DMA2 Channel 1 global interrupt */
.word stm32_dma2ch2 /* Vector 16+57: DMA2 Channel 2 global interrupt */
.word stm32_dma2ch3 /* Vector 16+58: DMA2 Channel 3 global interrupt */
.word stm32_dma2ch45 /* Vector 16+59: DMA2 Channel 4&5 global interrupt */
#endif
.size stm32_vectors, .-stm32_vectors
/************************************************************************************
* .text
************************************************************************************/
.text
.type handlers, function
.thumb_func
handlers:
HANDLER stm32_reserved, STM32_IRQ_RESERVED /* Unexpected/reserved vector */
HANDLER stm32_nmi, STM32_IRQ_NMI /* Vector 2: Non-Maskable Interrupt (NMI) */
HANDLER stm32_hardfault, STM32_IRQ_HARDFAULT /* Vector 3: Hard fault */
HANDLER stm32_mpu, STM32_IRQ_MPU /* Vector 4: Memory management (MPU) */
HANDLER stm32_busfault, STM32_IRQ_BUSFAULT /* Vector 5: Bus fault */
HANDLER stm32_usagefault, STM32_IRQ_USAGEFAULT /* Vector 6: Usage fault */
HANDLER stm32_svcall, STM32_IRQ_SVCALL /* Vector 11: SVC call */
HANDLER stm32_dbgmonitor, STM32_IRQ_DBGMONITOR /* Vector 12: Debug Monitor */
HANDLER stm32_pendsv, STM32_IRQ_PENDSV /* Vector 14: Penable system service request */
HANDLER stm32_systick, STM32_IRQ_SYSTICK /* Vector 15: System tick */
#ifdef CONFIG_STM32_CONNECTIVITY_LINE
HANDLER stm32_wwdg, STM32_IRQ_WWDG /* Vector 16+0: Window Watchdog interrupt */
HANDLER stm32_pvd, STM32_IRQ_PVD /* Vector 16+1: PVD through EXTI Line detection interrupt */
HANDLER stm32_tamper, STM32_IRQ_TAMPER /* Vector 16+2: Tamper interrupt */
HANDLER stm32_rtc, STM32_IRQ_RTC /* Vector 16+3: RTC global interrupt */
HANDLER stm32_flash, STM32_IRQ_FLASH /* Vector 16+4: Flash global interrupt */
HANDLER stm32_rcc, STM32_IRQ_RCC /* Vector 16+5: RCC global interrupt */
HANDLER stm32_exti0, STM32_IRQ_EXTI0 /* Vector 16+6: EXTI Line 0 interrupt */
HANDLER stm32_exti1, STM32_IRQ_EXTI1 /* Vector 16+7: EXTI Line 1 interrupt */
HANDLER stm32_exti2, STM32_IRQ_EXTI2 /* Vector 16+8: EXTI Line 2 interrupt */
HANDLER stm32_exti3, STM32_IRQ_EXTI3 /* Vector 16+9: EXTI Line 3 interrupt */
HANDLER stm32_exti4, STM32_IRQ_EXTI4 /* Vector 16+10: EXTI Line 4 interrupt */
HANDLER stm32_dma1ch1, STM32_IRQ_DMA1CH1 /* Vector 16+11: DMA1 Channel 1 global interrupt */
HANDLER stm32_dma1ch2, STM32_IRQ_DMA1CH2 /* Vector 16+12: DMA1 Channel 2 global interrupt */
HANDLER stm32_dma1ch3, STM32_IRQ_DMA1CH3 /* Vector 16+13: DMA1 Channel 3 global interrupt */
HANDLER stm32_dma1ch4, STM32_IRQ_DMA1CH4 /* Vector 16+14: DMA1 Channel 4 global interrupt */
HANDLER stm32_dma1ch5, STM32_IRQ_DMA1CH5 /* Vector 16+15: DMA1 Channel 5 global interrupt */
HANDLER stm32_dma1ch6, STM32_IRQ_DMA1CH6 /* Vector 16+16: DMA1 Channel 7 global interrupt */
HANDLER stm32_adc12, STM32_IRQ_ADC12 /* Vector 16+18: ADC1 and ADC2 global interrupt */
HANDLER stm32_can1tx, STM32_IRQ_CAN1TX /* Vector 16+19: CAN1 TX interrupts */
HANDLER stm32_can1rx0, STM32_IRQ_CAN1RX0 /* Vector 16+20: CAN1 RX0 interrupts */
HANDLER stm32_can1rx, STM32_IRQ_CAN1RX1 /* Vector 16+21: CAN1 RX1 interrupt */
HANDLER stm32_can1sce, STM32_IRQ_CAN1SCE /* Vector 16+22: CAN1 SCE interrupt */
HANDLER stm32_exti95, STM32_IRQ_EXTI95 /* Vector 16+23: EXTI Line[9:5] interrupts */
HANDLER stm32_tim1brk, STM32_IRQ_TIM1BRK /* Vector 16+24: TIM1 Break interrupt */
HANDLER stm32_tim1up, STM32_IRQ_TIM1UP /* Vector 16+25: TIM1 Update interrupt */
HANDLER stm32_tim1trgcom, STM32_IRQ_TIM1TRGCOM /* Vector 16+26: TIM1 Trigger and Commutation interrupts */
HANDLER stm32_tim1cc, STM32_IRQ_TIM1CC /* Vector 16+27: TIM1 Capture Compare interrupt */
HANDLER stm32_tim2, STM32_IRQ_TIM2 /* Vector 16+28: TIM2 global interrupt */
HANDLER stm32_tim3, STM32_IRQ_TIM3 /* Vector 16+29: TIM3 global interrupt */
HANDLER stm32_tim4, STM32_IRQ_TIM4 /* Vector 16+30: TIM4 global interrupt */
HANDLER stm32_i2c1ev, STM32_IRQ_I2C1EV /* Vector 16+31: I2C1 event interrupt */
HANDLER stm32_i2c1er, STM32_IRQ_I2C1ER /* Vector 16+32: I2C1 error interrupt */
HANDLER stm32_i2c2ev, STM32_IRQ_I2C2EV /* Vector 16+33: I2C2 event interrupt */
HANDLER stm32_i2c2er, STM32_IRQ_I2C2ER /* Vector 16+34: I2C2 error interrupt */
HANDLER stm32_spi1, STM32_IRQ_SPI1 /* Vector 16+35: SPI1 global interrupt */
HANDLER stm32_spi2, STM32_IRQ_SPI2 /* Vector 16+36: SPI2 global interrupt */
HANDLER stm32_usart1, STM32_IRQ_USART1 /* Vector 16+37: USART1 global interrupt */
HANDLER stm32_usart2, STM32_IRQ_USART2 /* Vector 16+38: USART2 global interrupt */
HANDLER stm32_usart3, STM32_IRQ_USART3 /* Vector 16+39: USART3 global interrupt */
HANDLER stm32_exti1510, STM32_IRQ_EXTI1510 /* Vector 16+40: EXTI Line[15:10] interrupts */
HANDLER stm32_rtcalr, STM32_IRQ_RTCALR /* Vector 16+41: RTC alarm through EXTI line interrupt */
HANDLER stm32_otgfswkup, STM32_IRQ_OTGFSWKUP /* Vector 16+42: USB On-The-Go FS Wakeup through EXTI line interrupt */
HANDLER stm32_tim5, STM32_IRQ_TIM5 /* Vector 16+50: TIM5 global interrupt */
HANDLER stm32_spi3, STM32_IRQ_SPI3 /* Vector 16+51: SPI3 global interrupt */
HANDLER stm32_uart4 , STM32_IRQ_UART4 /* Vector 16+52: UART4 global interrupt */
HANDLER stm32_uart5, STM32_IRQ_UART5 /* Vector 16+53: UART5 global interrupt */
HANDLER stm32_tim6, STM32_IRQ_TIM6 /* Vector 16+54: TIM6 global interrupt */
HANDLER stm32_tim7, STM32_IRQ_TIM7 /* Vector 16+55: TIM7 global interrupt */
HANDLER stm32_dma2ch1, STM32_IRQ_DMA2CH1 /* Vector 16+56: DMA2 Channel 1 global interrupt */
HANDLER stm32_dma2ch2, STM32_IRQ_DMA2CH2 /* Vector 16+57: DMA2 Channel 2 global interrupt */
HANDLER stm32_dma2ch3, STM32_IRQ_DMA2CH3 /* Vector 16+58: DMA2 Channel 3 global interrupt */
HANDLER stm32_dma2ch4, STM32_IRQ_DMA2CH4 /* Vector 16+59: DMA2 Channel 4 global interrupt */
HANDLER stm32_dma2ch5, STM32_IRQ_DMA2CH5 /* Vector 16+60: DMA2 Channel 5 global interrupt */
HANDLER stm32_eth, STM32_IRQ_ETH /* Vector 16+61: Ethernet global interrupt */
HANDLER stm32_ethwkup, STM32_IRQ_ETHWKUP /* Vector 16+62: Ethernet Wakeup through EXTI line interrupt */
HANDLER stm32_can2tx, STM32_IRQ_CAN2TX /* Vector 16+63: CAN2 TX interrupts */
HANDLER stm32_can2rx0, STM32_IRQ_CAN2RX0 /* Vector 16+64: CAN2 RX0 interrupts */
HANDLER stm32_can2rx1, STM32_IRQ_CAN2RX1 /* Vector 16+65: CAN2 RX1 interrupt */
HANDLER stm32_can2sce, STM32_IRQ_CAN2SCE /* Vector 16+66: CAN2 SCE interrupt */
HANDLER stm32_otgfs, STM32_IRQ_OTGFS /* Vector 16+67: USB On The Go FS global interrupt */
#else
HANDLER stm32_wwdg, STM32_IRQ_WWDG /* Vector 16+0: Window Watchdog interrupt */
HANDLER stm32_pvd, STM32_IRQ_PVD /* Vector 16+1: PVD through EXTI Line detection interrupt */
HANDLER stm32_tamper, STM32_IRQ_TAMPER /* Vector 16+2: Tamper interrupt */
HANDLER stm32_rtc, STM32_IRQ_RTC /* Vector 16+3: RTC global interrupt */
HANDLER stm32_flash, STM32_IRQ_FLASH /* Vector 16+4: Flash global interrupt */
HANDLER stm32_rcc, STM32_IRQ_RCC /* Vector 16+5: RCC global interrupt */
HANDLER stm32_exti0, STM32_IRQ_EXTI0 /* Vector 16+6: EXTI Line 0 interrupt */
HANDLER stm32_exti1, STM32_IRQ_EXTI1 /* Vector 16+7: EXTI Line 1 interrupt */
HANDLER stm32_exti2, STM32_IRQ_EXTI2 /* Vector 16+8: EXTI Line 2 interrupt */
HANDLER stm32_exti3, STM32_IRQ_EXTI3 /* Vector 16+9: EXTI Line 3 interrupt */
HANDLER stm32_exti4, STM32_IRQ_EXTI4 /* Vector 16+10: EXTI Line 4 interrupt */
HANDLER stm32_dma1ch1, STM32_IRQ_DMA1CH1 /* Vector 16+11: DMA1 Channel 1 global interrupt */
HANDLER stm32_dma1ch2, STM32_IRQ_DMA1CH2 /* Vector 16+12: DMA1 Channel 2 global interrupt */
HANDLER stm32_dma1ch3, STM32_IRQ_DMA1CH3 /* Vector 16+13: DMA1 Channel 3 global interrupt */
HANDLER stm32_dma1ch4, STM32_IRQ_DMA1CH4 /* Vector 16+14: DMA1 Channel 4 global interrupt */
HANDLER stm32_dma1ch5, STM32_IRQ_DMA1CH5 /* Vector 16+15: DMA1 Channel 5 global interrupt */
HANDLER stm32_dma1ch6, STM32_IRQ_DMA1CH6 /* Vector 16+16: DMA1 Channel 6 global interrupt */
HANDLER stm32_dma1ch7, STM32_IRQ_DMA1CH7 /* Vector 16+17: DMA1 Channel 7 global interrupt */
HANDLER stm32_adc12, STM32_IRQ_ADC12 /* Vector 16+18: ADC1 and ADC2 global interrupt */
HANDLER stm32_usbhpcantx, STM32_IRQ_USBHPCANTX /* Vector 16+19: USB High Priority or CAN TX interrupts*/
HANDLER stm32_usblpcanrx0, STM32_IRQ_USBLPCANRX0 /* Vector 16+20: USB Low Priority or CAN RX0 interrupts*/
HANDLER stm32_can1rx1, STM32_IRQ_CAN1RX1 /* Vector 16+21: CAN1 RX1 interrupt */
HANDLER stm32_can1sce, STM32_IRQ_CAN1SCE /* Vector 16+22: CAN1 SCE interrupt */
HANDLER stm32_exti95, STM32_IRQ_EXTI95 /* Vector 16+23: EXTI Line[9:5] interrupts */
HANDLER stm32_tim1brk, STM32_IRQ_TIM1BRK /* Vector 16+24: TIM1 Break interrupt */
HANDLER stm32_tim1up, STM32_IRQ_TIM1UP /* Vector 16+25: TIM1 Update interrupt */
HANDLER stm32_tim1rtgcom, STM32_IRQ_TIM1TRGCOM /* Vector 16+26: TIM1 Trigger and Commutation interrupts */
HANDLER stm32_tim1cc, STM32_IRQ_TIM1CC /* Vector 16+27: TIM1 Capture Compare interrupt */
HANDLER stm32_tim2, STM32_IRQ_TIM2 /* Vector 16+28: TIM2 global interrupt */
HANDLER stm32_tim3, STM32_IRQ_TIM3 /* Vector 16+29: TIM3 global interrupt */
HANDLER stm32_tim4, STM32_IRQ_TIM4 /* Vector 16+30: TIM4 global interrupt */
HANDLER stm32_i2c1ev, STM32_IRQ_I2C1EV /* Vector 16+31: I2C1 event interrupt */
HANDLER stm32_i2c1er, STM32_IRQ_I2C1ER /* Vector 16+32: I2C1 error interrupt */
HANDLER stm32_i2c2ev, STM32_IRQ_I2C2EV /* Vector 16+33: I2C2 event interrupt */
HANDLER stm32_i2c2er, STM32_IRQ_I2C2ER /* Vector 16+34: I2C2 error interrupt */
HANDLER stm32_spi1, STM32_IRQ_SPI1 /* Vector 16+35: SPI1 global interrupt */
HANDLER stm32_spi2, STM32_IRQ_SPI2 /* Vector 16+36: SPI2 global interrupt */
HANDLER stm32_usart1, STM32_IRQ_USART1 /* Vector 16+37: USART1 global interrupt */
HANDLER stm32_usart2, STM32_IRQ_USART2 /* Vector 16+38: USART2 global interrupt */
HANDLER stm32_usart3, STM32_IRQ_USART3 /* Vector 16+39: USART3 global interrupt */
HANDLER stm32_exti1510, STM32_IRQ_EXTI1510 /* Vector 16+40: EXTI Line[15:10] interrupts */
HANDLER stm32_rtcalr, STM32_IRQ_RTCALR /* Vector 16+41: RTC alarm through EXTI line interrupt */
HANDLER stm32_usbwkup, STM32_IRQ_USBWKUP /* Vector 16+42: USB wakeup from suspend through EXTI line interrupt*/
HANDLER stm32_tim8brk, STM32_IRQ_TIM8BRK /* Vector 16+43: TIM8 Break interrupt */
HANDLER stm32_tim8up, STM32_IRQ_TIM8UP /* Vector 16+44: TIM8 Update interrupt */
HANDLER stm32_tim8trgcom, STM32_IRQ_TIM8TRGCOM /* Vector 16+45: TIM8 Trigger and Commutation interrupts */
HANDLER stm32_tim8cc, STM32_IRQ_TIM8CC /* Vector 16+46: TIM8 Capture Compare interrupt */
HANDLER stm32_adc3, STM32_IRQ_ADC3 /* Vector 16+47: ADC3 global interrupt */
HANDLER stm32_fsmc, STM32_IRQ_FSMC /* Vector 16+48: FSMC global interrupt */
HANDLER stm32_sdio, STM32_IRQ_SDIO /* Vector 16+49: SDIO global interrupt */
HANDLER stm32_tim5, STM32_IRQ_TIM5 /* Vector 16+50: TIM5 global interrupt */
HANDLER stm32_spi3, STM32_IRQ_SPI3 /* Vector 16+51: SPI3 global interrupt */
HANDLER stm32_uart4, STM32_IRQ_UART4 /* Vector 16+52: UART4 global interrupt */
HANDLER stm32_uart5, STM32_IRQ_UART5 /* Vector 16+53: UART5 global interrupt */
HANDLER stm32_tim6, STM32_IRQ_TIM6 /* Vector 16+54: TIM6 global interrupt */
HANDLER stm32_tim7, STM32_IRQ_TIM7 /* Vector 16+55: TIM7 global interrupt */
HANDLER stm32_dma2ch1, STM32_IRQ_DMA2CH1 /* Vector 16+56: DMA2 Channel 1 global interrupt */
HANDLER stm32_dma2ch2, STM32_IRQ_DMA2CH2 /* Vector 16+57: DMA2 Channel 2 global interrupt */
HANDLER stm32_dma2ch3, STM32_IRQ_DMA2CH3 /* Vector 16+58: DMA2 Channel 3 global interrupt */
HANDLER stm32_dma2ch45, STM32_IRQ_DMA2CH45 /* Vector 16+59: DMA2 Channel 4&5 global interrupt */
#endif
/* Common IRQ handling logic. On entry here, the stack is like the following:
*
* REG_XPSR
* REG_R15
* REG_R14
* REG_R12
* REG_R3
* REG_R2
* REG_R1
* MSP->REG_R0
*
* and R0 contains the IRQ number
*/
stm32_common:
/* Complete the context save */
mrs r1, msp /* R1=The main stack pointer */
mov r2, r1 /* R2=Copy of the main stack pointer */
add r2, #HW_XCPT_SIZE /* R2=MSP before the interrupt was taken */
mrs r3, primask /* R3=Current PRIMASK setting */
stmdb r1!, {r2-r11} /* Save the remaining registers plus the SP value */
/* Disable interrupts, select the stack to use for interrupt handling
* and call up_doirq to handle the interrupt
*/
cpsid i /* Disable further interrupts */
/* If CONFIG_ARCH_INTERRUPTSTACK is defined, we will use a special interrupt
* stack pointer. The way that this is done here prohibits nested interrupts!
* Otherwise, we will re-use the main stack for interrupt level processing.
*/
#ifdef CONFIG_ARCH_INTERRUPTSTACK
ld sp, #up_interruptstack_base
str r1, [sp, #-4]! /* Save the MSP on the interrupt stack */
bl up_doirq /* R0=IRQ, R1=register save (msp) */
ldr r1, [sp, #+4]! /* Recover R1=main stack pointer */
#else
mov sp, r1 /* We are using the main stack pointer */
bl up_doirq /* R0=IRQ, R1=register save (msp) */
mov r1, sp /* Recover R1=main stack pointer */
#endif
/* On return from up_doirq, R0 will hold a pointer to register context
* array to use for the interrupt return. If that return value is the same
* as current stack pointer, then things are relatively easy.
*/
cmp r0, r1 /* Context switch? */
beq 1f /* Branch if no context switch */
/* We are returning with a pending context switch. This case is different
* because in this case, the register save structure does not lie on the
* stack but, rather, are within a TCB structure. We'll have to copy some
* values to the stack.
*/
add r1, r0, #SW_XCPT_SIZE /* R1=Address of HW save area in reg array */
ldmia r1, {r4-r11} /* Fetch eight registers in HW save area */
ldr r1, [r0, #(4*REG_SP)] /* R1=Value of SP before interrupt */
stmdb r1!, {r4-r11} /* Store eight registers in HW save area */
ldmia r0, {r2-r11} /* Recover R4-R11 + 2 temp values */
b 2f /* Re-join common logic */
/* We are returning with no context switch. We simply need to "unwind"
* the same stack frame that we created
*/
1:
ldmia r1!, {r2-r11} /* Recover R4-R11 + 2 temp values */
2:
msr msp, r1 /* Recover the return MSP value */
/* Do we need to restore interrupts? */
tst r3, #1 /* PRIMASK bit 1=1 means that interrupts are masked */
bne 3f
cpsie i /* Restore interrupts */
/* Always return with R14 containing the special value that will: (1)
* return to thread mode, and (2) continue to use the MSP
*/
3:
ldr r14, =EXC_RETURN /* Load the special value */
bx r14 /* And return */
.size handlers, .-handlers
/************************************************************************************
* Name: up_interruptstack/g_userstack
*
* Description:
* Shouldn't happen
*
************************************************************************************/
#if CONFIG_ARCH_INTERRUPTSTACK > 3
.bss
.align 4
up_interruptstack:
.skip (CONFIG_ARCH_INTERRUPTSTACK & ~3)
up_interruptstack_base:
.size up_interruptstack, .-up_interruptstack
#endif
/************************************************************************************
* .rodata
************************************************************************************/
.section .rodata, "a"
/* Variables: _sbss is the start of the BSS region (see ld.script) _ebss is the end
* of the BSS regsion (see ld.script). The idle task stack starts at the end of BSS
* and is of size CONFIG_IDLETHREAD_STACKSIZE. The IDLE thread is the thread that
* the system boots on and, eventually, becomes the idle, do nothing task that runs
* only when there is nothing else to run. The heap continues from there until the
* end of memory. See g_heapbase below.
*/
.globl g_heapbase
.type g_heapbase, object
g_heapbase:
.long _ebss+CONFIG_IDLETHREAD_STACKSIZE
.size g_heapbase, .-g_heapbase
.end