diff --git a/arch/avr/include/at90usb/irq.h b/arch/avr/include/at90usb/irq.h new file mode 100644 index 0000000000..6d2b9166c4 --- /dev/null +++ b/arch/avr/include/at90usb/irq.h @@ -0,0 +1,149 @@ +/**************************************************************************** + * arch/avr/include/avr/at90usb/irq.h + * + * Copyright (C) 2011 Gregory Nutt. All rights reserved. + * Author: Gregory Nutt + * + * 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. + * + ****************************************************************************/ + +/* This file should never be included directed but, rather, only indirectly + * through nuttx/irq.h + */ + +#ifndef __ARCH_AVR_INCLUDE_AT90USB_IRQ_H +#define __ARCH_AVR_INCLUDE_AT90USB_IRQ_H + +/**************************************************************************** + * Included Files + ****************************************************************************/ + +#include +#include + +/**************************************************************************** + * Definitions + ****************************************************************************/ + +/* The AT90USB has 38 interrupt vectors including vector 0, the reset + * vector. The remaining 37 are assigned IRQ numbers here: + */ + +#define AT90USB_IRQ_INT0 0 /* 0x0002 External Interrupt Request 0 */ +#define AT90USB_IRQ_INT1 1 /* 0x0004 External Interrupt Request 1 */ +#define AT90USB_IRQ_INT2 2 /* 0x0006 External Interrupt Request 2 */ +#define AT90USB_IRQ_INT3 3 /* 0x0008 External Interrupt Request 3 */ +#define AT90USB_IRQ_INT4 4 /* 0x000a External Interrupt Request 4 */ +#define AT90USB_IRQ_INT5 5 /* 0x000c External Interrupt Request 5 */ +#define AT90USB_IRQ_INT6 6 /* 0x000e External Interrupt Request 6 */ +#define AT90USB_IRQ_INT7 7 /* 0x0010 External Interrupt Request 7 */ +#define AT90USB_IRQ_PCINT0 8 /* 0x0012 PCINT0 Pin Change Interrupt Request 0 */ +#define AT90USB_IRQ_USBGEN 9 /* 0x0014 USB General USB General Interrupt request */ +#define AT90USB_IRQ_USBEP 10 /* 0x0016 USB Endpoint/Pipe USB ENdpoint/Pipe Interrupt request */ +#define AT90USB_IRQ_WDT 11 /* 0x0018 Watchdog Time-out Interrupt */ +#define AT90USB_IRQ_T2COMPA 12 /* 0x001a TIMER2 COMPA Timer/Counter2 Compare Match A */ +#define AT90USB_IRQ_T2COMPB 13 /* 0x001c TIMER2 COMPB Timer/Counter2 Compare Match B */ +#define AT90USB_IRQ_T2OVF 14 /* 0x001e TIMER2 OVF Timer/Counter2 Overflow */ +#define AT90USB_IRQ_T1CAPT 15 /* 0x0020 TIMER1 CAPT Timer/Counter1 Capture Event */ +#define AT90USB_IRQ_T1COMPA 16 /* 0x0022 TIMER1 COMPA Timer/Counter1 Compare Match A */ +#define AT90USB_IRQ_T1COMPB 17 /* 0x0024 TIMER1 COMPB Timer/Counter1 Compare Match B */ +#define AT90USB_IRQ_T1COMPC 18 /* 0x0026 TIMER1 COMPC Timer/Counter1 Compare Match c */ +#define AT90USB_IRQ_T1OVF 19 /* 0x0028 TIMER1 OVF Timer/Counter1 Overflow */ +#define AT90USB_IRQ_T0COMPA 20 /* 0x002a TIMER0 COMPA Timer/Counter0 Compare Match A */ +#define AT90USB_IRQ_T0COMPB 21 /* 0x002c TIMER0 COMPB Timer/Counter0 Compare Match B */ +#define AT90USB_IRQ_T0OVF 22 /* 0x002e TIMER0 OVF Timer/Counter0 Overflow */ +#define AT90USB_IRQ_SPI 23 /* 0x0030 STC SPI Serial Transfer Complete */ +#define AT90USB_IRQ_U1RX 24 /* 0x0032 USART1 Rx Complete */ +#define AT90USB_IRQ_U1DRE 25 /* 0x0034 USART1 Data Register Empty */ +#define AT90USB_IRQ_U1TX 26 /* 0x0036 USART1 Tx Complete */ +#define AT90USB_IRQ_ANACOMP 27 /* 0x0038 ANALOG COMP Analog Comparator */ +#define AT90USB_IRQ_ADC 28 /* 0x003a ADC Conversion Complete */ +#define AT90USB_IRQ_EE 29 /* 0x003c EEPROM Ready */ +#define AT90USB_IRQ_T3CAPT 30 /* 0x003e TIMER3 CAPT Timer/Counter3 Capture Event */ +#define AT90USB_IRQ_T3COMPA 31 /* 0x0034 TIMER3 COMPA Timer/Counter3 Compare Match A */ +#define AT90USB_IRQ_T3COMPB 32 /* 0x0042 TIMER3 COMPB Timer/Counter3 Compare Match B */ +#define AT90USB_IRQ_T3COMPC 33 /* 0x0044 TIMER3 COMPC Timer/Counter3 Compare Match C */ +#define AT90USB_IRQ_T3OVF 34 /* 0x0046 TIMER3 OVF Timer/Counter3 Overflow */ +#define AT90USB_IRQ_TWI 35 /* 0x0048 TWI Two-wire Serial Interface */ +#define AT90USB_IRQ_SPMRDY 36 /* 0x004a Store Program Memory Ready */ + +#define NR_IRQS 37 + +/**************************************************************************** + * Public Types + ****************************************************************************/ + +/**************************************************************************** + * Inline functions + ****************************************************************************/ + +#ifndef __ASSEMBLY__ + +/* Save the current interrupt enable state & disable all interrupts */ + +static inline irqstate_t irqsave(void) +{ + /* Needs to return the current interrupt state, then disable interrupts */ +#warning "Not implemented" + return 0 +} + +/* Restore saved interrupt state */ + +static inline void irqrestore(irqstate_t flags) +{ + /* Based on the provided interrupt flags, conditionally enable interrupts */ +#warning "Not implemented" +} +#endif /* __ASSEMBLY__ */ + +/**************************************************************************** + * Public Variables + ****************************************************************************/ + +/**************************************************************************** + * Public Function Prototypes + ****************************************************************************/ + +#ifndef __ASSEMBLY__ +#ifdef __cplusplus +#define EXTERN extern "C" +extern "C" { +#else +#define EXTERN extern +#endif + +#undef EXTERN +#ifdef __cplusplus +} +#endif +#endif + +#endif /* __ARCH_AVR_INCLUDE_AT90USB_IRQ_H */ + diff --git a/arch/avr/include/atmega/irq.h b/arch/avr/include/atmega/irq.h new file mode 100644 index 0000000000..ea5b020604 --- /dev/null +++ b/arch/avr/include/atmega/irq.h @@ -0,0 +1,146 @@ +/**************************************************************************** + * arch/avr/include/avr/atmega/irq.h + * + * Copyright (C) 2011 Gregory Nutt. All rights reserved. + * Author: Gregory Nutt + * + * 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. + * + ****************************************************************************/ + +/* This file should never be included directed but, rather, only indirectly + * through nuttx/irq.h + */ + +#ifndef __ARCH_AVR_INCLUDE_ATMEGA_IRQ_H +#define __ARCH_AVR_INCLUDE_ATMEGA_IRQ_H + +/**************************************************************************** + * Included Files + ****************************************************************************/ + +#include +#include + +/**************************************************************************** + * Definitions + ****************************************************************************/ + +/* The ATmega128 has 35 interrupt vectors including vector 0, the reset + * vector. The remaining 34 are assigned IRQ numbers here: + */ + +#define ATMEGA_IRQ_INT0 0 /* 0x0002 External Interrupt Request 0 */ +#define ATMEGA_IRQ_INT1 1 /* 0x0004 External Interrupt Request 1 */ +#define ATMEGA_IRQ_INT2 2 /* 0x0006 External Interrupt Request 2 */ +#define ATMEGA_IRQ_INT3 3 /* 0x0008 External Interrupt Request 3 */ +#define ATMEGA_IRQ_INT4 4 /* 0x000a External Interrupt Request 4 */ +#define ATMEGA_IRQ_INT5 5 /* 0x000c External Interrupt Request 5 */ +#define ATMEGA_IRQ_INT6 6 /* 0x000e External Interrupt Request 6 */ +#define ATMEGA_IRQ_INT7 7 /* 0x0010 External Interrupt Request 7 */ +#define ATMEGA_IRQ_T2COMP 8 /* 0x0012 TIMER2 COMP Timer/Counter2 Compare Match */ +#define ATMEGA_IRQ_T2OVF 9 /* 0x0014 TIMER2 OVF Timer/Counter2 Overflow */ +#define ATMEGA_IRQ_T1CAPT 10 /* 0x0016 TIMER1 CAPT Timer/Counter1 Capture Event */ +#define ATMEGA_IRQ_T1COMPA 11 /* 0x0018 TIMER1 COMPA Timer/Counter1 Compare Match A */ +#define ATMEGA_IRQ_T1COMPB 12 /* 0x001a TIMER1 COMPB Timer/Counter1 Compare Match B */ +#define ATMEGA_IRQ_T1OVF 13 /* 0x001c TIMER1 OVF Timer/Counter1 Overflow */ +#define ATMEGA_IRQ_T0COMP 14 /* 0x001e TIMER0 COMP Timer/Counter0 Compare Match */ +#define ATMEGA_IRQ_T0OVF 15 /* 0x0020 TIMER0 OVF Timer/Counter0 Overflow */ +#define ATMEGA_IRQ_SPI 16 /* 0x0022 STC SPI Serial Transfer Complete */ +#define ATMEGA_IRQ_U0RX 17 /* 0x0024 USART0 Rx Complete */ +#define ATMEGA_IRQ_U0DRE 18 /* 0x0026 USART0 Data Register Empty */ +#define ATMEGA_IRQ_U0TX 19 /* 0x0028 USART0 Tx Complete */ +#define ATMEGA_IRQ_ADC 20 /* 0x002a ADC Conversion Complete */ +#define ATMEGA_IRQ_EE 21 /* 0x002c EEPROM Ready */ +#define ATMEGA_IRQ_ANACOMP 22 /* 0x002e ANALOG COMP Analog Comparator */ +#define ATMEGA_IRQ_T1COMPC 23 /* 0x0030 TIMER1 COMPC Timer/Countre1 Compare Match C */ +#define ATMEGA_IRQ_T3CAPT 24 /* 0x0032 TIMER3 CAPT Timer/Counter3 Capture Event */ +#define ATMEGA_IRQ_T3COMPA 25 /* 0x0034 TIMER3 COMPA Timer/Counter3 Compare Match A */ +#define ATMEGA_IRQ_T3COMPB 26 /* 0x0036 TIMER3 COMPB Timer/Counter3 Compare Match B */ +#define ATMEGA_IRQ_T3COMPC 27 /* 0x0038 TIMER3 COMPC Timer/Counter3 Compare Match C */ +#define ATMEGA_IRQ_T3OVF 28 /* 0x003a TIMER3 OVF Timer/Counter3 Overflow */ +#define ATMEGA_IRQ_U1RX 29 /* 0x003c USART1 Rx Complete */ +#define ATMEGA_IRQ_U1DRE 30 /* 0x003e USART1 Data Register Empty */ +#define ATMEGA_IRQ_U1TX 31 /* 0x0040 USART1 Tx Complete */ +#define ATMEGA_IRQ_TWI 32 /* 0x0042 TWI Two-wire Serial Interface */ +#define ATMEGA_IRQ_SPMRDY 33 /* 0x0044 Store Program Memory Ready */ + +#define NR_IRQS 34 + +/**************************************************************************** + * Public Types + ****************************************************************************/ + +/**************************************************************************** + * Inline functions + ****************************************************************************/ + +#ifndef __ASSEMBLY__ + +/* Save the current interrupt enable state & disable all interrupts */ + +static inline irqstate_t irqsave(void) +{ + /* Needs to return the current interrupt state, then disable interrupts */ +#warning "Not implemented" + return 0 +} + +/* Restore saved interrupt state */ + +static inline void irqrestore(irqstate_t flags) +{ + /* Based on the provided interrupt flags, conditionally enable interrupts */ +#warning "Not implemented" +} +#endif /* __ASSEMBLY__ */ + +/**************************************************************************** + * Public Variables + ****************************************************************************/ + +/**************************************************************************** + * Public Function Prototypes + ****************************************************************************/ + +#ifndef __ASSEMBLY__ +#ifdef __cplusplus +#define EXTERN extern "C" +extern "C" { +#else +#define EXTERN extern +#endif + +#undef EXTERN +#ifdef __cplusplus +} +#endif +#endif + +#endif /* __ARCH_AVR_INCLUDE_ATMEGA_IRQ_H */ + diff --git a/arch/avr/src/at90usb/Make.defs b/arch/avr/src/at90usb/Make.defs new file mode 100644 index 0000000000..48973c8987 --- /dev/null +++ b/arch/avr/src/at90usb/Make.defs @@ -0,0 +1,64 @@ +############################################################################ +# arch/avr/src/at90usb/Make.defs +# +# Copyright (C) 2011 Gregory Nutt. All rights reserved. +# Author: Gregory Nutt +# +# 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. +# +############################################################################ + +# The start-up, "head", file + +HEAD_ASRC = at90usb_head.S + +# Common AVR files + +CMN_ASRCS = up_exceptions.S up_fullcontextrestore.S up_switchcontext.S +CMN_CSRCS = up_assert.c up_allocateheap.c up_blocktask.c up_copystate.c \ + up_createstack.c up_mdelay.c up_udelay.c up_exit.c up_idle.c \ + up_initialize.c up_initialstate.c up_interruptcontext.c \ + up_modifyreg8.c up_modifyreg16.c up_modifyreg32.c \ + up_releasepending.c up_releasestack.c up_reprioritizertr.c \ + up_schedulesigaction.c up_sigdeliver.c up_unblocktask.c \ + up_usestack.c up_doirq.c + +# Required ATMEGA files + +CHIP_ASRCS = +CHIP_CSRCS = at90usb_clkinit.c at90usb_gpio.c at90usb_irq.c \ + at90usb_lowconsole.c at90usb_lowinit.c at90usb_serial.c \ + at90usb_timerisr.c + +# Configuration-dependent ATMEGA files + +ifeq ($(CONFIG_AVR_GPIOIRQ),y) +CHIP_CSRCS += at90usb_gpioirq.c +endif + + diff --git a/arch/avr/src/at90usb/at90usb_head.S b/arch/avr/src/at90usb/at90usb_head.S new file mode 100755 index 0000000000..a6745d866a --- /dev/null +++ b/arch/avr/src/at90usb/at90usb_head.S @@ -0,0 +1,220 @@ +/**************************************************************************** + * arch/avr32/src/at90usb/at90usb_head.S + * + * Copyright (C) 2011 Gregory Nutt. All rights reserved. + * Author: Gregory Nutt + * + * 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 +#define __AVR_ATmega128__ +#include +#include + +/**************************************************************************** + * Pre-processor definitions + ****************************************************************************/ + +#define STACKBASE (_ebss+CONFIG_IDLETHREAD_STACKSIZE-4) + +/**************************************************************************** + * External Symbols + ****************************************************************************/ + + .file "up_nommuhead.S" + .global _sbss /* Start of .bss. Defined by ld.script */ + .global _ebss /* End of .bss. Defined by ld.script */ + .global _sdata /* Start of .data section in RAM */ + .global _edata /* End of .data section in RAM */ + .global _eronly /* Start of .data section in FLASH */ + .global up_lowinit /* Perform low level initialization */ + .global os_start /* NuttX entry point */ + + .global vectortab + .global at90usb_int0 /* External interrupt request 0 */ + .global at90usb_int1 /* External interrupt request 1 */ + .global at90usb_int2 /* External interrupt request 2 */ + .global at90usb_int3 /* External interrupt request 3 */ + .global at90usb_int4 /* External interrupt request 4 */ + .global at90usb_int5 /* External interrupt request 5 */ + .global at90usb_int6 /* External interrupt request 6 */ + .global at90usb_int7 /* External interrupt request 7 */ + .global at90usb_pcint0 /* PCINT0 Pin Change Interrupt Request 0 */ + .global at90usb_usbgen /* USB General USB General Interrupt request */ + .global at90usb_usbep /* USB Endpoint/Pipe USB ENdpoint/Pipe Interrupt request */ + .global at90usb_wdt /* Watchdog Time-out Interrupt */ + .global at90usb_t2compa /* TIMER2 COMPA Timer/Counter2 Compare Match A */ + .global at90usb_t2compb /* TIMER2 COMPB Timer/Counter2 Compare Match B */ + .global at90usb_t2ovf /* TIMER2 OVF Timer/Counter2 Overflow */ + .global at90usb_t1capt /* TIMER1 CAPT Timer/Counter1 Capture Event */ + .global at90usb_t1compa /* TIMER1 COMPA Timer/Counter1 Compare Match A */ + .global at90usb_t1compb /* TIMER1 COMPB Timer/Counter1 Compare Match B */ + .global at90usb_t1compc /* TIMER1 COMPC Timer/Counter1 Compare Match c */ + .global at90usb_t1ovf /* TIMER1 OVF Timer/Counter1 Overflow */ + .global at90usb_t0compa /* TIMER0 COMPA Timer/Counter0 Compare Match A */ + .global at90usb_t0compb /* TIMER0 COMPB Timer/Counter0 Compare Match B */ + .global at90usb_t0ovf /* TIMER0 OVF Timer/Counter0 Overflow */ + .global at90usb_spi /* STC SPI Serial Transfer Complete */ + .global at90usb_u1rx /* USART1 Rx Complete */ + .global at90usb_u1dre /* USART1 Data Register Empty */ + .global at90usb_u1tx /* USART1 Tx Complete */ + .global at90usb_anacomp /* ANALOG COMP Analog Comparator */ + .global at90usb_adc /* ADC Conversion Complete */ + .global at90usb_ee /* EEPROM Ready */ + .global at90usb_t3capt /* TIMER3 CAPT Timer/Counter3 Capture Event */ + .global at90usb_t3compa /* TIMER3 COMPA Timer/Counter3 Compare Match A */ + .global at90usb_t3compb /* TIMER3 COMPB Timer/Counter3 Compare Match B */ + .global at90usb_t3compc /* TIMER3 COMPC Timer/Counter3 Compare Match C */ + .global at90usb_t3ovf /* TIMER3 OVF Timer/Counter3 Overflow */ + .global at90usb_twi /* TWI Two-wire Serial Interface */ + .global at90usb_spmrdy /* Store Program Memory Ready */ + +/**************************************************************************** + * Macros + ****************************************************************************/ + + .macro vector name + jmp \name + .endm + +/**************************************************************************** + * Vector Table + ****************************************************************************/ + +/* The AT90USB has 38 interrupt vectors including vector 0, the reset + * vector. + */ + + .section .vectors, "ax", @progbits + .func vectortab +vectortab: + jmp __start /* 0: Vector 0 is the reset vector */ + vector at90usb_int0 /* 1: External interrupt request 0 */ + vector at90usb_int1 /* 2: External interrupt request 1 */ + vector at90usb_int2 /* 3: External interrupt request 2 */ + vector at90usb_int3 /* 4: External interrupt request 3 */ + vector at90usb_int4 /* 5: External interrupt request 4 */ + vector at90usb_int5 /* 6: External interrupt request 5 */ + vector at90usb_int6 /* 7: External interrupt request 6 */ + vector at90usb_int7 /* 8: External interrupt request 7 */ + vector at90usb_pcint0 /* 9: PCINT0 Pin Change Interrupt Request 0 */ + vector at90usb_usbgen /* 10: USB General USB General Interrupt request */ + vector at90usb_usbep /* 11: USB Endpoint/Pipe USB ENdpoint/Pipe Interrupt request */ + vector at90usb_wdt /* 12: Watchdog Time-out Interrupt */ + vector at90usb_t2compa /* 13: TIMER2 COMPA Timer/Counter2 Compare Match A */ + vector at90usb_t2compb /* 14: TIMER2 COMPB Timer/Counter2 Compare Match B */ + vector at90usb_t2ovf /* 15: TIMER2 OVF Timer/Counter2 Overflow */ + vector at90usb_t1capt /* 16: TIMER1 CAPT Timer/Counter1 Capture Event */ + vector at90usb_t1compa /* 17: TIMER1 COMPA Timer/Counter1 Compare Match A */ + vector at90usb_t1compb /* 18: TIMER1 COMPB Timer/Counter1 Compare Match B */ + vector at90usb_t1compc /* 19: TIMER1 COMPC Timer/Counter1 Compare Match c */ + vector at90usb_t1ovf /* 20: TIMER1 OVF Timer/Counter1 Overflow */ + vector at90usb_t0compa /* 21: TIMER0 COMPA Timer/Counter0 Compare Match A */ + vector at90usb_t0compb /* 22: TIMER0 COMPB Timer/Counter0 Compare Match B */ + vector at90usb_t0ovf /* 23: TIMER0 OVF Timer/Counter0 Overflow */ + vector at90usb_spi /* 24: STC SPI Serial Transfer Complete */ + vector at90usb_u1rx /* 25: USART1 Rx Complete */ + vector at90usb_u1dre /* 26: USART1 Data Register Empty */ + vector at90usb_u1tx /* 27: USART1 Tx Complete */ + vector at90usb_anacomp /* 28: ANALOG COMP Analog Comparator */ + vector at90usb_adc /* 29: ADC Conversion Complete */ + vector at90usb_ee /* 30: EEPROM Ready */ + vector at90usb_t3capt /* 31: TIMER3 CAPT Timer/Counter3 Capture Event */ + vector at90usb_t3compa /* 32: TIMER3 COMPA Timer/Counter3 Compare Match A */ + vector at90usb_t3compb /* 33: TIMER3 COMPB Timer/Counter3 Compare Match B */ + vector at90usb_t3compc /* 34: TIMER3 COMPC Timer/Counter3 Compare Match C */ + vector at90usb_t3ovf /* 35: TIMER3 OVF Timer/Counter3 Overflow */ + vector at90usb_twi /* 36: TWI Two-wire Serial Interface */ + vector at90usb_spmrdy /* 37: Store Program Memory Ready */ + .endfunc + +/**************************************************************************** + * Reset Entry Point + ****************************************************************************/ + + .section .init, "ax", @progbits + .func __start +__start: + + /* Initialize the IDLE thread stack */ + + clr r1 + out _SFR_IO_ADDR(SREG), r1 + ldi r28, lo8(STACKBASE) + ldi r29, hi8(STACKBASE) + out _SFR_IO_ADDR(SPH), r29 + out _SFR_IO_ADDR(SPL), r28 + + /* Copy initial global data values from FLASH into RAM */ + + ldi r17, hi8(_edata) + ldi r26, lo8(_sdata) + ldi r27, hi8(_sdata) + ldi r30, lo8(_eronly) + ldi r31, hi8(_eronly) + ldi r16, hh8(_eronly) + out _SFR_IO_ADDR(RAMPZ), r16 + rjmp .Lcopystart + +.Lcopyloop: + elpm r0, Z+ + st X+, r0 + +.Lcopystart: + cpi r26, lo8(__data_end) + cpc r27, r17 + brne .Lcopyloop + + /* Now start NuttX */ + + call os_start /* Start NuttX */ + jmp exit + .endfunc + +/**************************************************************************** + * Heap Base + ****************************************************************************/ + + /* This global variable is unsigned long g_heapbase and is + * exported from here only because of its coupling to other + * uses of _ebss in this file + */ + + .data + .globl g_heapbase + .type g_heapbase, object +g_heapbase: + .word _ebss+CONFIG_IDLETHREAD_STACKSIZE + .size g_heapbase, .-g_heapbase + .end diff --git a/arch/avr/src/at90usb/at90usb_internal.h b/arch/avr/src/at90usb/at90usb_internal.h new file mode 100644 index 0000000000..3d7c4e7dcf --- /dev/null +++ b/arch/avr/src/at90usb/at90usb_internal.h @@ -0,0 +1,245 @@ +/**************************************************************************** + * arch/avr/src/at90usb/at90usb_internal.h + * + * Copyright (C) 2011 Gregory Nutt. All rights reserved. + * Author: Gregory Nutt + * + * 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. + * + ****************************************************************************/ + +#ifndef __ARCH_AVR_SRC_ATMEGA_ATMEGA_INTERNAL_H +#define __ARCH_AVR_SRC_ATMEGA_ATMEGA_INTERNAL_H + +/**************************************************************************** + * Included Files + ****************************************************************************/ + +#include +#include "at90usb_config.h" + +#ifdef CONFIG_AVR_GPIOIRQ +# include +#endif + +#include +#include + +/**************************************************************************** + * Pre-processor Definitions + ****************************************************************************/ + +/* Bit-encoded input to at90usb_configgpio() ********************************/ +# warning "Missing definitions" + +/**************************************************************************** + * Public Types + ****************************************************************************/ + +#ifndef __ASSEMBLY__ + +/**************************************************************************** + * Inline Functions + ****************************************************************************/ + +/**************************************************************************** + * Public Data + ****************************************************************************/ + +#undef EXTERN +#if defined(__cplusplus) +#define EXTERN extern "C" +extern "C" { +#else +#define EXTERN extern +#endif + +/**************************************************************************** + * Public Function Prototypes + ****************************************************************************/ + +/**************************************************************************** + * Name: up_clkinit + * + * Description: + * Initialiaze clock/PLL settings per the definitions in the board.h file. + * + ****************************************************************************/ + +EXTERN void up_clkinitialize(void); + +/**************************************************************************** + * Name: usart_reset + * + * Description: + * Reset a USART. + * + ****************************************************************************/ + +EXTERN void usart_reset(uintptr_t usart_base); + +/**************************************************************************** + * Name: usart_configure + * + * Description: + * Configure a USART as a RS-232 UART. + * + ****************************************************************************/ + +void usart_configure(uintptr_t usart_base, uint32_t baud, unsigned int parity, + unsigned int nbits, bool stop2); + +/**************************************************************************** + * Name: up_consoleinit + * + * Description: + * Initialize a console for debug output. This function is called very + * early in the intialization sequence to configure the serial console + * uart (only). + * + ****************************************************************************/ + +EXTERN void up_consoleinit(void); + +/**************************************************************************** + * Name: up_boardinit + * + * Description: + * This function must be provided by the board-specific logic in the + * directory configs//up_boot.c. + * + ****************************************************************************/ + +EXTERN void up_boardinitialize(void); + +/**************************************************************************** + * Name: at90usb_configgpio + * + * Description: + * Configure a GPIO pin based on bit-encoded description of the pin. + * + ****************************************************************************/ + +EXTERN int at90usb_configgpio(uint16_t cfgset); + +/**************************************************************************** + * Name: at90usb_gpiowrite + * + * Description: + * Write one or zero to the selected GPIO pin + * + ****************************************************************************/ + +EXTERN void at90usb_gpiowrite(uint16_t pinset, bool value); + +/**************************************************************************** + * Name: at90usb_gpioread + * + * Description: + * Read one or zero from the selected GPIO pin + * + ****************************************************************************/ + +EXTERN bool at90usb_gpioread(uint16_t pinset); + +/**************************************************************************** + * Name: gpio_irqinitialize + * + * Description: + * Initialize all vectors to the unexpected interrupt handler + * + * Configuration Notes: + * Configuration CONFIG_AVR_GPIOIRQ must be selected to enable the + * overall GPIO IRQ feature. + * + * Assumptions: + * Called during the early boot sequence before global interrupts have + * been enabled. + * + ****************************************************************************/ + +#ifdef CONFIG_AVR_GPIOIRQ +EXTERN void weak_function gpio_irqinitialize(void); +#endif + +/**************************************************************************** + * Name: gpio_irqattach + * + * Description: + * Attach in GPIO interrupt to the provide 'isr' + * + * Configuration Notes: + * Configuration CONFIG_AVR_GPIOIRQ must be selected to enable the + * overall GPIO IRQ feature. + * + ****************************************************************************/ + +#ifdef CONFIG_AVR_GPIOIRQ +EXTERN int gpio_irqattach(int irq, xcpt_t newisr, xcpt_t *oldisr); +#endif + +/**************************************************************************** + * Name: gpio_irqenable + * + * Description: + * Enable the GPIO IRQ specified by 'irq' + * + * Configuration Notes: + * Configuration CONFIG_AVR_GPIOIRQ must be selected to enable the + * overall GPIO IRQ feature. + * + ****************************************************************************/ + +#ifdef CONFIG_AVR_GPIOIRQ +EXTERN void gpio_irqenable(int irq); +#endif + +/***************************************************************************** + * Name: gpio_irqdisable + * + * Description: + * Disable the GPIO IRQ specified by 'irq' + * + * Configuration Notes: + * Configuration CONFIG_AVR_GPIOIRQ must be selected to enable the + * overall GPIO IRQ feature. + * + ****************************************************************************/ + +#ifdef CONFIG_AVR_GPIOIRQ +EXTERN void gpio_irqdisable(int irq); +#endif + +#undef EXTERN +#if defined(__cplusplus) +} +#endif + +#endif /* __ASSEMBLY__ */ +#endif /* __ARCH_AVR_SRC_ATMEGA_ATMEGA_INTERNAL_H */ + diff --git a/arch/avr/src/at90usb/at90usb_memorymap.h b/arch/avr/src/at90usb/at90usb_memorymap.h new file mode 100644 index 0000000000..c312a7cca0 --- /dev/null +++ b/arch/avr/src/at90usb/at90usb_memorymap.h @@ -0,0 +1,68 @@ +/************************************************************************************ + * arch/avr/src/at90usb/at90usb_memorymap.h + * + * Copyright (C) 2011 Gregory Nutt. All rights reserved. + * Author: Gregory Nutt + * + * 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. + * + ************************************************************************************/ + +#ifndef __ARCH_AVR_SRC_ATMEGA_ATMEGA_MEMORYMAP_H +#define __ARCH_AVR_SRC_ATMEGA_ATMEGA_MEMORYMAP_H + +/************************************************************************************ + * Included Files + ************************************************************************************/ + +#include + +/************************************************************************************ + * Pre-processor Definitions + ************************************************************************************/ + +/* Physical memory map */ +# warning "Missing Definitions" + +/* Peripheral Address Map */ +# warning "Missing Definitions" + +/************************************************************************************ + * Public Types + ************************************************************************************/ + +/************************************************************************************ + * Public Data + ************************************************************************************/ + +/************************************************************************************ + * Public Functions + ************************************************************************************/ + +#endif /* __ARCH_AVR_SRC_ATMEGA_ATMEGA_MEMORYMAP_H */ + diff --git a/arch/avr/src/at90usb/chip.h b/arch/avr/src/at90usb/chip.h new file mode 100644 index 0000000000..facc65ec16 --- /dev/null +++ b/arch/avr/src/at90usb/chip.h @@ -0,0 +1,75 @@ +/************************************************************************************ + * arch/avr/src/at90usb/chip.h + * + * Copyright (C) 2011 Gregory Nutt. All rights reserved. + * Author: Gregory Nutt + * + * 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. + * + ************************************************************************************/ + +#ifndef __ARCH_AVR_SRC_ATMEGA_CHIP_H +#define __ARCH_AVR_SRC_ATMEGA_CHIP_H + +/************************************************************************************ + * Included Files + ************************************************************************************/ + +#include + +/************************************************************************************ + * Pre-processor Definitions + ************************************************************************************/ + +/* Define features for supported chip in the ATMEGA family */ + +#if 0 +#else +# error "Unsupported AVR chip" +#endif + +/* Include only the memory map. Other chip hardware files should then include this + * file for the proper setup + */ + +#include "at90usb_memorymap.h" + +/************************************************************************************ + * Public Types + ************************************************************************************/ + +/************************************************************************************ + * Public Data + ************************************************************************************/ + +/************************************************************************************ + * Public Functions + ************************************************************************************/ + +#endif /* __ARCH_AVR_SRC_ATMEGA_CHIP_H */ + diff --git a/arch/avr/src/atmega/atmega_head.S b/arch/avr/src/atmega/atmega_head.S new file mode 100755 index 0000000000..ec11e4f7f9 --- /dev/null +++ b/arch/avr/src/atmega/atmega_head.S @@ -0,0 +1,214 @@ +/**************************************************************************** + * arch/avr32/src/atmega/atmega_head.S + * + * Copyright (C) 2011 Gregory Nutt. All rights reserved. + * Author: Gregory Nutt + * + * 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 +#define __AVR_ATmega128__ +#include +#include + +/**************************************************************************** + * Pre-processor definitions + ****************************************************************************/ + +#define STACKBASE (_ebss+CONFIG_IDLETHREAD_STACKSIZE-4) + +/**************************************************************************** + * External Symbols + ****************************************************************************/ + + .file "up_nommuhead.S" + .global _sbss /* Start of .bss. Defined by ld.script */ + .global _ebss /* End of .bss. Defined by ld.script */ + .global _sdata /* Start of .data section in RAM */ + .global _edata /* End of .data section in RAM */ + .global _eronly /* Start of .data section in FLASH */ + .global up_lowinit /* Perform low level initialization */ + .global os_start /* NuttX entry point */ + + .global vectortab + .global atmega_int0 /* External interrupt request 0 */ + .global atmega_int1 /* External interrupt request 1 */ + .global atmega_int2 /* External interrupt request 2 */ + .global atmega_int3 /* External interrupt request 3 */ + .global atmega_int4 /* External interrupt request 4 */ + .global atmega_int5 /* External interrupt request 5 */ + .global atmega_int6 /* External interrupt request 6 */ + .global atmega_int7 /* External interrupt request 7 */ + .global atmega_t2comp /* TIMER2 COMP timer/counter2 compare match */ + .global atmega_t2ovf /* TIMER2 OVF timer/counter2 overflow */ + .global atmega_t1capt /* TIMER1 CAPT timer/counter1 capture event */ + .global atmega_t1compa /* TIMER1 COMPA timer/counter1 compare match a */ + .global atmega_t1compb /* TIMER1 COMPB timer/counter1 compare match b */ + .global atmega_t1ovf /* TIMER1 OVF timer/counter1 overflow */ + .global atmega_t0comp /* TIMER0 COMP timer/counter0 compare match */ + .global atmega_t0ovf /* TIMER0 OVF timer/counter0 overflow */ + .global atmega_spi /* STC SPI serial transfer complete */ + .global atmega_u0rx /* USART0 RX complete */ + .global atmega_u0dre /* USART0 data register empty */ + .global atmega_u0tx /* USART0 TX complete */ + .global atmega_adc /* ADC conversion complete */ + .global atmega_ee /* EEPROM ready */ + .global atmega_anacomp /* ANALOG COMP analog comparator */ + .global atmega_t1compc /* TIMER1 COMPC timer/countre1 compare match c */ + .global atmega_t3capt /* TIMER3 CAPT timer/counter3 capture event */ + .global atmega_t3compa /* TIMER3 COMPA timer/counter3 compare match a */ + .global atmega_t3compb /* TIMER3 COMPB timer/counter3 compare match b */ + .global atmega_t3compc /* TIMER3 COMPC timer/counter3 compare match c */ + .global atmega_t3ovf /* TIMER3 OVF timer/counter3 overflow */ + .global atmega_u1rx /* USART1 RX complete */ + .global atmega_u1dre /* USART1 data register empty */ + .global atmega_u1tx /* USART1 TX complete */ + .global atmega_twi /* TWI two-wire serial interface */ + .global atmega_spmrdy /* Store program memory ready */ + +/**************************************************************************** + * Macros + ****************************************************************************/ + + .macro vector name + jmp \name + .endm + +/**************************************************************************** + * Vector Table + ****************************************************************************/ + +/* The ATmega128 has 35 interrupt vectors including vector 0, the reset + * vector. + */ + + .section .vectors, "ax", @progbits + .func vectortab +vectortab: + jmp __start /* 0: Vector 0 is the reset vector */ + vector atmega_int0 /* 1: External interrupt request 0 */ + vector atmega_int1 /* 2: External interrupt request 1 */ + vector atmega_int2 /* 3: External interrupt request 2 */ + vector atmega_int3 /* 4: External interrupt request 3 */ + vector atmega_int4 /* 5: External interrupt request 4 */ + vector atmega_int5 /* 6 : External interrupt request 5 */ + vector atmega_int6 /* 7: External interrupt request 6 */ + vector atmega_int7 /* 8: External interrupt request 7 */ + vector atmega_t2comp /* 9: TIMER2 COMP timer/counter2 compare match */ + vector atmega_t2ovf /* 10: TIMER2 OVF timer/counter2 overflow */ + vector atmega_t1capt /* 11: TIMER1 CAPT timer/counter1 capture event */ + vector atmega_t1compa /* 12: TIMER1 COMPA timer/counter1 compare match a */ + vector atmega_t1compb /* 13: TIMER1 COMPB timer/counter1 compare match b */ + vector atmega_t1ovf /* 14: TIMER1 OVF timer/counter1 overflow */ + vector atmega_t0comp /* 15: TIMER0 COMP timer/counter0 compare match */ + vector atmega_t0ovf /* 16: TIMER0 OVF timer/counter0 overflow */ + vector atmega_spi /* 17: STC SPI serial transfer complete */ + vector atmega_u0rx /* 18: USART0 RX complete */ + vector atmega_u0dre /* 19: USART0 data register empty */ + vector atmega_u0tx /* 20: USART0 TX complete */ + vector atmega_adc /* 21: ADC conversion complete */ + vector atmega_ee /* 22: EEPROM ready */ + vector atmega_anacomp /* 23: ANALOG COMP analog comparator */ + vector atmega_t1compc /* 24: TIMER1 COMPC timer/countre1 compare match c */ + vector atmega_t3capt /* 25: TIMER3 CAPT timer/counter3 capture event */ + vector atmega_t3compa /* 26: TIMER3 COMPA timer/counter3 compare match a */ + vector atmega_t3compb /* 27: TIMER3 COMPB timer/counter3 compare match b */ + vector atmega_t3compc /* 28: TIMER3 COMPC timer/counter3 compare match c */ + vector atmega_t3ovf /* 29: TIMER3 OVF timer/counter3 overflow */ + vector atmega_u1rx /* 30: USART1 RX complete */ + vector atmega_u1dre /* 31: USART1 data register empty */ + vector atmega_u1tx /* 32: USART1 TX complete */ + vector atmega_twi /* 33: TWI two-wire serial interface */ + vector atmega_spmrdy /* 34: Store program memory ready */ + .endfunc + +/**************************************************************************** + * Reset Entry Point + ****************************************************************************/ + + .section .init, "ax", @progbits + .func __start +__start: + + /* Initialize the IDLE thread stack */ + + clr r1 + out _SFR_IO_ADDR(SREG), r1 + ldi r28, lo8(STACKBASE) + ldi r29, hi8(STACKBASE) + out _SFR_IO_ADDR(SPH), r29 + out _SFR_IO_ADDR(SPL), r28 + + /* Copy initial global data values from FLASH into RAM */ + + ldi r17, hi8(_edata) + ldi r26, lo8(_sdata) + ldi r27, hi8(_sdata) + ldi r30, lo8(_eronly) + ldi r31, hi8(_eronly) + ldi r16, hh8(_eronly) + out _SFR_IO_ADDR(RAMPZ), r16 + rjmp .Lcopystart + +.Lcopyloop: + elpm r0, Z+ + st X+, r0 + +.Lcopystart: + cpi r26, lo8(__data_end) + cpc r27, r17 + brne .Lcopyloop + + /* Now start NuttX */ + + call os_start /* Start NuttX */ + jmp exit + .endfunc + +/**************************************************************************** + * Heap Base + ****************************************************************************/ + + /* This global variable is unsigned long g_heapbase and is + * exported from here only because of its coupling to other + * uses of _ebss in this file + */ + + .data + .globl g_heapbase + .type g_heapbase, object +g_heapbase: + .word _ebss+CONFIG_IDLETHREAD_STACKSIZE + .size g_heapbase, .-g_heapbase + .end