mirror of
https://github.com/apache/nuttx.git
synced 2026-06-06 00:14:22 +08:00
More logic for the AVR port
git-svn-id: svn://svn.code.sf.net/p/nuttx/code/trunk@3684 42af7a65-404d-4744-a932-0658087f49c3
This commit is contained in:
patacongo
@@ -42,10 +42,11 @@ HEAD_ASRC = at90usb_head.S
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CMN_ASRCS = up_switchcontext.S
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CMN_CSRCS = up_allocateheap.c up_assert.c up_blocktask.c up_copystate.c \
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up_createstack.c up_doirq.c up_exit.c up_idle.c up_initialize.c \
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up_interruptcontext.c up_lowputs.c up_mdelay.c up_modifyreg8.c \
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up_modifyreg16.c up_modifyreg32.c up_puts.c up_releasepending.c \
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up_releasestack.c up_reprioritizertr.c up_schedulesigaction.c \
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up_sigdeliver.c up_udelay.c up_unblocktask.c up_usestack.c
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up_initialstate.c up_interruptcontext.c up_irq.c up_lowputs.c \
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up_mdelay.c up_modifyreg8.c up_modifyreg16.c up_modifyreg32.c \
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up_puts.c up_releasepending.c up_releasestack.c \
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up_reprioritizertr.c up_schedulesigaction.c up_sigdeliver.c \
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up_udelay.c up_unblocktask.c up_usestack.c
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# Configuration-dependent common files
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@@ -56,7 +57,7 @@ endif
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# Required AT90USB files
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CHIP_ASRCS = at90usb_exceptions.S
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CHIP_CSRCS =
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CHIP_CSRCS = at90usb_lowconsole.c at90usb_lowinit.c at90usb_serial.c at90usb_timerisr.c
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# Configuration-dependent aT90USB files
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@@ -45,6 +45,23 @@
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/************************************************************************************
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* Pre-processor Definitions
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************************************************************************************/
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/* USARTs ***************************************************************************/
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#undef HAVE_USART_DEVICE
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#if defined(CONFIG_AVR_USART1)
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# define HAVE_USART_DEVICE 1
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#endif
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/* Is there a serial console? There should be at most one defined. It
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* could be on any USARTn (but n=1 only for the AT90USB).
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*/
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#if defined(CONFIG_USART1_SERIAL_CONSOLE) && defined(CONFIG_AVR_USART1)
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# define HAVE_SERIAL_CONSOLE 1
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#else
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# undef CONFIG_USART1_SERIAL_CONSOLE
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# undef HAVE_SERIAL_CONSOLE
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#endif
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/************************************************************************************
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* Public Types
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@@ -66,6 +66,7 @@
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****************************************************************************/
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.file "up_nommuhead.S"
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.global __start /* Entry point */
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.global _sbss /* Start of .bss. Defined by ld.script */
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.global _ebss /* End of .bss. Defined by ld.script */
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.global _sdata /* Start of .data section in RAM */
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@@ -248,9 +249,13 @@ __do_clear_bss:
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cpc r27, r17
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brne .Lclearloop
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/* Perform any low-level initialization */
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call up_lowinit
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/* Now start NuttX */
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call os_start /* Start NuttX */
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call os_start
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jmp exit
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.endfunc
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@@ -0,0 +1,169 @@
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/******************************************************************************
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* arch/avr/src/at90usb/at90usb_lowconsole.c
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*
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* Copyright (C) 2010 Gregory Nutt. All rights reserved.
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* Author: Gregory Nutt <spudmonkey@racsa.co.cr>
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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*
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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||||
* 2. Redistributions in binary form must reproduce the above copyright
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||||
* notice, this list of conditions and the following disclaimer in
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* the documentation and/or other materials provided with the
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* distribution.
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* 3. Neither the name NuttX nor the names of its contributors may be
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* used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
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* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
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* COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
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* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
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* OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
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* AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
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* ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*
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******************************************************************************/
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/******************************************************************************
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* Included Files
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******************************************************************************/
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#include <nuttx/config.h>
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#include "at90usb_config.h"
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#include <assert.h>
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#include <debug.h>
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#include <arch/irq.h>
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#include <arch/board/board.h>
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#include "up_arch.h"
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#include "up_internal.h"
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#include "at90usb_internal.h"
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/******************************************************************************
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* Private Definitions
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******************************************************************************/
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/* Select USART parameters for the selected console -- there is only USART1 */
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#if defined(CONFIG_USART1_SERIAL_CONSOLE)
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# define AVR_CONSOLE_BASE AVR_USART1_BASE
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# define AVR_CONSOLE_BAUD CONFIG_USART1_BAUD
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# define AVR_CONSOLE_BITS CONFIG_USART1_BITS
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# define AVR_CONSOLE_PARITY CONFIG_USART1_PARITY
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# define AVR_CONSOLE_2STOP CONFIG_USART1_2STOP
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#else
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# error "No CONFIG_USARTn_SERIAL_CONSOLE Setting"
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#endif
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/******************************************************************************
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* Private Types
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******************************************************************************/
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/******************************************************************************
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* Private Function Prototypes
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******************************************************************************/
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/******************************************************************************
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* Global Variables
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******************************************************************************/
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/******************************************************************************
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* Private Variables
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******************************************************************************/
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/******************************************************************************
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* Private Functions
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******************************************************************************/
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/******************************************************************************
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* Name: usart_setbaudrate
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*
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* Description:
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* Configure the USART baud rate.
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*
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******************************************************************************/
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#ifdef HAVE_USART_DEVICE
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static void usart_setbaudrate(uintptr_t usart_base, uint32_t baudrate)
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{
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# warning "Missing logic"
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}
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#endif
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/******************************************************************************
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* Public Functions
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******************************************************************************/
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/******************************************************************************
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* Name: usart_reset
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*
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* Description:
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* Reset a USART.
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*
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******************************************************************************/
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#ifdef HAVE_USART_DEVICE
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void usart_reset(uintptr_t usart_base)
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{
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# warning "Missing Logic"
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}
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#endif
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/******************************************************************************
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* Name: usart_configure
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*
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* Description:
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* Configure a USART as a RS-232 USART.
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*
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******************************************************************************/
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#ifdef HAVE_USART_DEVICE
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void usart_configure(uintptr_t usart_base, uint32_t baud, unsigned int parity,
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unsigned int nbits, bool stop2)
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{
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# warning "Missing Logic"
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}
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#endif
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/******************************************************************************
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* Name: up_consoleinit
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*
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* Description:
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* Initialize a console for debug output. This function is called very
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* early in the intialization sequence to configure the serial console uart
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* (only).
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*
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******************************************************************************/
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void up_consoleinit(void)
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{
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# warning "Missing Logic"
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}
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/******************************************************************************
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* Name: up_lowputc
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*
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* Description:
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* Output one byte on the serial console
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*
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******************************************************************************/
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void up_lowputc(char ch)
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{
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#ifdef HAVE_SERIAL_CONSOLE
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# warning "Missing Logic"
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#endif
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}
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@@ -0,0 +1,103 @@
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/**************************************************************************
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* arch/avr/src/at90usb/at90usb_lowinit.c
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*
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* Copyright (C) 2011 Gregory Nutt. All rights reserved.
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* Author: Gregory Nutt <spudmonkey@racsa.co.cr>
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*
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* Redistribution and use in source and binary forms, with or without
|
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* modification, are permitted provided that the following conditions
|
||||
* are met:
|
||||
*
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||||
* 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
|
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* ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
|
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* POSSIBILITY OF SUCH DAMAGE.
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*
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**************************************************************************/
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/**************************************************************************
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* Included Files
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**************************************************************************/
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#include <nuttx/config.h>
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#include "at90usb_config.h"
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#include "up_internal.h"
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#include "at90usb_internal.h"
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/**************************************************************************
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* Private Definitions
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**************************************************************************/
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/**************************************************************************
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* Private Types
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**************************************************************************/
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||||
|
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/**************************************************************************
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* Private Function Prototypes
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**************************************************************************/
|
||||
|
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/**************************************************************************
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* Global Variables
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**************************************************************************/
|
||||
|
||||
/**************************************************************************
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* Private Variables
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**************************************************************************/
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|
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/**************************************************************************
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* Private Functions
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**************************************************************************/
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/**************************************************************************
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* Public Functions
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**************************************************************************/
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/**************************************************************************
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* Name: up_lowinit
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*
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* Description:
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* This performs basic initialization of the USART used for the serial
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* console. Its purpose is to get the console output availabe as soon
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* as possible.
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*
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**************************************************************************/
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void up_lowinit(void)
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{
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/* Initialize a console (probably a serial console) */
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up_consoleinit();
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/* Perform early serial initialization (so that we will have debug output
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* available as soon as possible).
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*/
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#ifdef CONFIG_USE_EARLYSERIALINIT
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up_earlyserialinit();
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#endif
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/* Perform board-level initialization */
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up_boardinitialize();
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}
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File diff suppressed because it is too large
Load Diff
@@ -0,0 +1,165 @@
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/****************************************************************************
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* arch/avr/src/at90usb/at90usb_timerisr.c
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*
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* Copyright (C) 2011 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>
|
||||
|
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#include <stdint.h>
|
||||
#include <time.h>
|
||||
#include <debug.h>
|
||||
|
||||
#include <nuttx/arch.h>
|
||||
#include <arch/board/board.h>
|
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#include <avr/io.h>
|
||||
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#include "up_arch.h"
|
||||
|
||||
#include "at90usb_internal.h"
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||||
|
||||
/****************************************************************************
|
||||
* Definitions
|
||||
****************************************************************************/
|
||||
|
||||
/* The CPU frequency is given by BOARD_CPU_CLOCK (defined in board.h). The
|
||||
* desired interrupt frequency is given by CONFIG_MSEC_PER_TICK. An unscaled
|
||||
* ideal match is given by:
|
||||
*
|
||||
* CLOCK = CPU_CLOCK / DIVISOR # CPU clocks/sec
|
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* MATCH = CLOCK / CLOCKS_PER_SEC # CPU clocks/timer tick
|
||||
* MATCH = CPU_CLOCK / DIVISOR / CLOCKS_PER_SEC # CPU clocks/timer tick
|
||||
*
|
||||
* But we only have 16-bits of accuracy so we need to pick the smallest
|
||||
* divisor using the following brute force calculation:
|
||||
*/
|
||||
|
||||
#define MATCH1 (( BOARD_CPU_CLOCK + CLOCKS_PER_SEC/2) / CLOCKS_PER_SEC)
|
||||
#define MATCH8 ((((BOARD_CPU_CLOCK + 4) / 8) + CLOCKS_PER_SEC/2) / CLOCKS_PER_SEC)
|
||||
#define MATCH64 ((((BOARD_CPU_CLOCK + 8) / 64) + CLOCKS_PER_SEC/2) / CLOCKS_PER_SEC)
|
||||
#define MATCH256 ((((BOARD_CPU_CLOCK + 128) / 256) + CLOCKS_PER_SEC/2) / CLOCKS_PER_SEC)
|
||||
#define MATCH1024 ((((BOARD_CPU_CLOCK + 512) / 1024) + CLOCKS_PER_SEC/2) / CLOCKS_PER_SEC)
|
||||
|
||||
#if MATCH1 <= 65536
|
||||
# define MATCH (MATCH1-1)
|
||||
# define PRESCALE 1
|
||||
#elif MATCH8 <= 65536
|
||||
# define MATCH (MATCH8-1)
|
||||
# define PRESCALE 2
|
||||
#elif MATCH64 <= 65536
|
||||
# define MATCH (MATCH64-1)
|
||||
# define PRESCALE 3
|
||||
#elif MATCH256 <= 65536
|
||||
# define MATCH (MATCH256-1)
|
||||
# define PRESCALE 4
|
||||
#elif MATCH1024 <= 65536
|
||||
# define MATCH (MATCH1024-1)
|
||||
# define PRESCALE 5
|
||||
#else
|
||||
# error "Cannot represent this timer frequency"
|
||||
#endif
|
||||
|
||||
/*
|
||||
* Eg. CPU_CLOCK = 8MHz, CLOCKS_PER_SEC = 100
|
||||
*
|
||||
* MATCH1 ((8000000 + 50) / 100) = 80,000 FREQ=100.0Hz
|
||||
* MATCH8 ((1000000 + 50) / 100) = 10,000 FREQ=100.0Hz <-- this one
|
||||
* MATCH64 (( 125000 + 50) / 100) = 1,250 FREQ=100.0Hz
|
||||
* MATCH256 (( 31250 + 50) / 100) = 313 FREQ=99.8Hz
|
||||
* MATCH1024 (( 7804 + 50) / 100) = 78 FREQ=100.1Hz
|
||||
*/
|
||||
|
||||
/****************************************************************************
|
||||
* Private Types
|
||||
****************************************************************************/
|
||||
|
||||
/****************************************************************************
|
||||
* Private Functions
|
||||
****************************************************************************/
|
||||
|
||||
/****************************************************************************
|
||||
* Global Functions
|
||||
****************************************************************************/
|
||||
|
||||
/****************************************************************************
|
||||
* Function: up_timerisr
|
||||
*
|
||||
* Description:
|
||||
* The timer ISR will perform a variety of services for various portions
|
||||
* of the systems.
|
||||
*
|
||||
****************************************************************************/
|
||||
|
||||
int up_timerisr(int irq, uint32_t *regs)
|
||||
{
|
||||
/* Process timer interrupt */
|
||||
|
||||
sched_process_timer();
|
||||
return 0;
|
||||
}
|
||||
|
||||
/****************************************************************************
|
||||
* Function: up_timerinit
|
||||
*
|
||||
* Description:
|
||||
* This function is called during start-up to initialize the timer
|
||||
* interrupt. NOTE: This function depends on setup of OSC32 by
|
||||
* up_clkinitialize().
|
||||
*
|
||||
****************************************************************************/
|
||||
|
||||
void up_timerinit(void)
|
||||
{
|
||||
/* Setup timer 1 compare match A to generate a tick interrupt.
|
||||
*
|
||||
* First, setup the match value for compare match A.
|
||||
*/
|
||||
|
||||
OCR1AH = (uint8_t)((uint16_t)MATCH >> 8);
|
||||
OCR1AL = (uint8_t)((uint16_t)MATCH & 0xff);
|
||||
|
||||
/* Setup clock source and compare match behaviour. */
|
||||
|
||||
TCCR1A = 0x08 | PRESCALE;
|
||||
|
||||
/* Attach the timer interrupt vector */
|
||||
|
||||
(void)irq_attach(AT90USB_IRQ_T2COMPA, (xcpt_t)up_timerisr);
|
||||
|
||||
/* Enable the interrupt on compare match A */
|
||||
|
||||
TIMSK1 |= 0x10;
|
||||
}
|
||||
@@ -42,10 +42,11 @@ HEAD_ASRC = atmega_head.S
|
||||
CMN_ASRCS = up_switchcontext.S
|
||||
CMN_CSRCS = up_allocateheap.c up_assert.c up_blocktask.c up_copystate.c \
|
||||
up_createstack.c up_doirq.c up_exit.c up_idle.c up_initialize.c \
|
||||
up_interruptcontext.c up_lowputs.c up_mdelay.c up_modifyreg8.c \
|
||||
up_modifyreg16.c up_modifyreg32.c up_puts.c up_releasepending.c \
|
||||
up_releasestack.c up_reprioritizertr.c up_schedulesigaction.c \
|
||||
up_sigdeliver.c up_udelay.c up_unblocktask.c up_usestack.c
|
||||
up_initialstate.c up_interruptcontext.c up_irq.c up_lowputs.c \
|
||||
up_mdelay.c up_modifyreg8.c up_modifyreg16.c up_modifyreg32.c \
|
||||
up_puts.c up_releasepending.c up_releasestack.c \
|
||||
up_reprioritizertr.c up_schedulesigaction.c up_sigdeliver.c \
|
||||
up_udelay.c up_unblocktask.c up_usestack.c
|
||||
|
||||
# Configuration-dependent common files
|
||||
|
||||
@@ -56,7 +57,7 @@ endif
|
||||
# Required ATMEGA files
|
||||
|
||||
CHIP_ASRCS = atmega_exceptions.S
|
||||
CHIP_CSRCS =
|
||||
CHIP_CSRCS = atmega_lowconsole.c atmega_lowinit.c atmega_serial.c atmega_timerisr.c
|
||||
|
||||
# Configuration-dependent ATMEGA files
|
||||
|
||||
|
||||
@@ -45,6 +45,28 @@
|
||||
/************************************************************************************
|
||||
* Pre-processor Definitions
|
||||
************************************************************************************/
|
||||
/* USARTs ***************************************************************************/
|
||||
|
||||
#undef HAVE_USART_DEVICE
|
||||
#if defined(CONFIG_AVR_USART0) || defined(CONFIG_AVR_USART0)
|
||||
# define HAVE_USART_DEVICE 1
|
||||
#endif
|
||||
|
||||
/* Is there a serial console? There should be at most one defined. It
|
||||
* could be on any USARTn, n=0,1
|
||||
*/
|
||||
|
||||
#if defined(CONFIG_USART0_SERIAL_CONSOLE) && defined(CONFIG_AVR_USART0)
|
||||
# undef CONFIG_USART1_SERIAL_CONSOLE
|
||||
# define HAVE_SERIAL_CONSOLE 1
|
||||
#elif defined(CONFIG_USART1_SERIAL_CONSOLE) && defined(CONFIG_AVR_USART1)
|
||||
# undef CONFIG_USART0_SERIAL_CONSOLE
|
||||
# define HAVE_SERIAL_CONSOLE 1
|
||||
#else
|
||||
# undef CONFIG_USART0_SERIAL_CONSOLE
|
||||
# undef CONFIG_USART1_SERIAL_CONSOLE
|
||||
# undef HAVE_SERIAL_CONSOLE
|
||||
#endif
|
||||
|
||||
/************************************************************************************
|
||||
* Public Types
|
||||
|
||||
@@ -66,6 +66,7 @@
|
||||
****************************************************************************/
|
||||
|
||||
.file "up_nommuhead.S"
|
||||
.global __start /* Entry point */
|
||||
.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 */
|
||||
@@ -242,9 +243,13 @@ __do_clear_bss:
|
||||
cpc r27, r17
|
||||
brne .Lclearloop
|
||||
|
||||
/* Perform any low-level initialization */
|
||||
|
||||
call up_lowinit
|
||||
|
||||
/* Now start NuttX */
|
||||
|
||||
call os_start /* Start NuttX */
|
||||
call os_start
|
||||
jmp exit
|
||||
.endfunc
|
||||
|
||||
|
||||
@@ -0,0 +1,174 @@
|
||||
/******************************************************************************
|
||||
* arch/avr/src/atmega/atmega_lowconsole.c
|
||||
*
|
||||
* Copyright (C) 2011 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 "atmega_config.h"
|
||||
|
||||
#include <assert.h>
|
||||
#include <debug.h>
|
||||
|
||||
#include <arch/irq.h>
|
||||
#include <arch/board/board.h>
|
||||
|
||||
#include "up_arch.h"
|
||||
#include "up_internal.h"
|
||||
#include "atmega_internal.h"
|
||||
|
||||
/******************************************************************************
|
||||
* Private Definitions
|
||||
******************************************************************************/
|
||||
|
||||
/* Select USART parameters for the selected console */
|
||||
|
||||
#if defined(CONFIG_USART0_SERIAL_CONSOLE)
|
||||
# define AVR__CONSOLE_BASE AVR__USART0_BASE
|
||||
# define AVR__CONSOLE_BAUD CONFIG_USART0_BAUD
|
||||
# define AVR__CONSOLE_BITS CONFIG_USART0_BITS
|
||||
# define AVR__CONSOLE_PARITY CONFIG_USART0_PARITY
|
||||
# define AVR__CONSOLE_2STOP CONFIG_USART0_2STOP
|
||||
#elif defined(CONFIG_USART1_SERIAL_CONSOLE)
|
||||
# define AVR__CONSOLE_BASE AVR__USART1_BASE
|
||||
# define AVR__CONSOLE_BAUD CONFIG_USART1_BAUD
|
||||
# define AVR__CONSOLE_BITS CONFIG_USART1_BITS
|
||||
# define AVR__CONSOLE_PARITY CONFIG_USART1_PARITY
|
||||
# define AVR__CONSOLE_2STOP CONFIG_USART1_2STOP
|
||||
#else
|
||||
# error "No CONFIG_USARTn_SERIAL_CONSOLE Setting"
|
||||
#endif
|
||||
|
||||
/******************************************************************************
|
||||
* Private Types
|
||||
******************************************************************************/
|
||||
|
||||
/******************************************************************************
|
||||
* Private Function Prototypes
|
||||
******************************************************************************/
|
||||
|
||||
/******************************************************************************
|
||||
* Global Variables
|
||||
******************************************************************************/
|
||||
|
||||
/******************************************************************************
|
||||
* Private Variables
|
||||
******************************************************************************/
|
||||
|
||||
/******************************************************************************
|
||||
* Private Functions
|
||||
******************************************************************************/
|
||||
|
||||
/******************************************************************************
|
||||
* Name: usart_setbaudrate
|
||||
*
|
||||
* Description:
|
||||
* Configure the USART baud rate.
|
||||
*
|
||||
******************************************************************************/
|
||||
|
||||
#ifdef HAVE_USART_DEVICE
|
||||
static void usart_setbaudrate(uintptr_t usart_base, uint32_t baudrate)
|
||||
{
|
||||
# warning "Missing logic"
|
||||
}
|
||||
#endif
|
||||
|
||||
/******************************************************************************
|
||||
* Public Functions
|
||||
******************************************************************************/
|
||||
|
||||
/******************************************************************************
|
||||
* Name: usart_reset
|
||||
*
|
||||
* Description:
|
||||
* Reset a USART.
|
||||
*
|
||||
******************************************************************************/
|
||||
|
||||
#ifdef HAVE_USART_DEVICE
|
||||
void usart_reset(uintptr_t usart_base)
|
||||
{
|
||||
# warning "Missing logic"
|
||||
}
|
||||
#endif
|
||||
|
||||
/******************************************************************************
|
||||
* Name: usart_configure
|
||||
*
|
||||
* Description:
|
||||
* Configure a USART as a RS-232 USART.
|
||||
*
|
||||
******************************************************************************/
|
||||
|
||||
#ifdef HAVE_USART_DEVICE
|
||||
void usart_configure(uintptr_t usart_base, uint32_t baud, unsigned int parity,
|
||||
unsigned int nbits, bool stop2)
|
||||
{
|
||||
# warning "Missing logic"
|
||||
}
|
||||
#endif
|
||||
|
||||
/******************************************************************************
|
||||
* 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).
|
||||
*
|
||||
******************************************************************************/
|
||||
|
||||
void up_consoleinit(void)
|
||||
{
|
||||
# warning "Missing logic"
|
||||
}
|
||||
|
||||
/******************************************************************************
|
||||
* Name: up_lowputc
|
||||
*
|
||||
* Description:
|
||||
* Output one byte on the serial console
|
||||
*
|
||||
******************************************************************************/
|
||||
|
||||
void up_lowputc(char ch)
|
||||
{
|
||||
#ifdef HAVE_SERIAL_CONSOLE
|
||||
# warning "Missing logic"
|
||||
#endif
|
||||
}
|
||||
|
||||
@@ -0,0 +1,103 @@
|
||||
/**************************************************************************
|
||||
* arch/avr/src/atmega/atmega_lowinit.c
|
||||
*
|
||||
* Copyright (C) 2011 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 "atmega_config.h"
|
||||
#include "up_internal.h"
|
||||
#include "atmega_internal.h"
|
||||
|
||||
/**************************************************************************
|
||||
* Private Definitions
|
||||
**************************************************************************/
|
||||
|
||||
/**************************************************************************
|
||||
* Private Types
|
||||
**************************************************************************/
|
||||
|
||||
/**************************************************************************
|
||||
* Private Function Prototypes
|
||||
**************************************************************************/
|
||||
|
||||
/**************************************************************************
|
||||
* Global Variables
|
||||
**************************************************************************/
|
||||
|
||||
/**************************************************************************
|
||||
* Private Variables
|
||||
**************************************************************************/
|
||||
|
||||
/**************************************************************************
|
||||
* Private Functions
|
||||
**************************************************************************/
|
||||
|
||||
/**************************************************************************
|
||||
* Public Functions
|
||||
**************************************************************************/
|
||||
|
||||
/**************************************************************************
|
||||
* Name: up_lowinit
|
||||
*
|
||||
* Description:
|
||||
* This performs basic initialization of the USART used for the serial
|
||||
* console. Its purpose is to get the console output availabe as soon
|
||||
* as possible.
|
||||
*
|
||||
**************************************************************************/
|
||||
|
||||
void up_lowinit(void)
|
||||
{
|
||||
/* Initialize a console (probably a serial console) */
|
||||
|
||||
up_consoleinit();
|
||||
|
||||
/* Perform early serial initialization (so that we will have debug output
|
||||
* available as soon as possible).
|
||||
*/
|
||||
|
||||
#ifdef CONFIG_USE_EARLYSERIALINIT
|
||||
up_earlyserialinit();
|
||||
#endif
|
||||
|
||||
/* Perform board-level initialization */
|
||||
|
||||
up_boardinitialize();
|
||||
}
|
||||
|
||||
|
||||
File diff suppressed because it is too large
Load Diff
@@ -0,0 +1,165 @@
|
||||
/****************************************************************************
|
||||
* arch/avr/src/atmega/atmega_timerisr.c
|
||||
*
|
||||
* Copyright (C) 2011 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 <stdint.h>
|
||||
#include <time.h>
|
||||
#include <debug.h>
|
||||
|
||||
#include <nuttx/arch.h>
|
||||
#include <arch/board/board.h>
|
||||
#include <avr/io.h>
|
||||
|
||||
#include "up_arch.h"
|
||||
|
||||
#include "atmega_internal.h"
|
||||
|
||||
/****************************************************************************
|
||||
* Definitions
|
||||
****************************************************************************/
|
||||
|
||||
/* The CPU frequency is given by BOARD_CPU_CLOCK (defined in board.h). The
|
||||
* desired interrupt frequency is given by CONFIG_MSEC_PER_TICK. An unscaled
|
||||
* ideal match is given by:
|
||||
*
|
||||
* CLOCK = CPU_CLOCK / DIVISOR # CPU clocks/sec
|
||||
* MATCH = CLOCK / CLOCKS_PER_SEC # CPU clocks/timer tick
|
||||
* MATCH = CPU_CLOCK / DIVISOR / CLOCKS_PER_SEC # CPU clocks/timer tick
|
||||
*
|
||||
* But we only have 16-bits of accuracy so we need to pick the smallest
|
||||
* divisor using the following brute force calculation:
|
||||
*/
|
||||
|
||||
#define MATCH1 (( BOARD_CPU_CLOCK + CLOCKS_PER_SEC/2) / CLOCKS_PER_SEC)
|
||||
#define MATCH8 ((((BOARD_CPU_CLOCK + 4) / 8) + CLOCKS_PER_SEC/2) / CLOCKS_PER_SEC)
|
||||
#define MATCH64 ((((BOARD_CPU_CLOCK + 8) / 64) + CLOCKS_PER_SEC/2) / CLOCKS_PER_SEC)
|
||||
#define MATCH256 ((((BOARD_CPU_CLOCK + 128) / 256) + CLOCKS_PER_SEC/2) / CLOCKS_PER_SEC)
|
||||
#define MATCH1024 ((((BOARD_CPU_CLOCK + 512) / 1024) + CLOCKS_PER_SEC/2) / CLOCKS_PER_SEC)
|
||||
|
||||
#if MATCH1 <= 65536
|
||||
# define MATCH (MATCH1-1)
|
||||
# define PRESCALE 1
|
||||
#elif MATCH8 <= 65536
|
||||
# define MATCH (MATCH8-1)
|
||||
# define PRESCALE 2
|
||||
#elif MATCH64 <= 65536
|
||||
# define MATCH (MATCH64-1)
|
||||
# define PRESCALE 3
|
||||
#elif MATCH256 <= 65536
|
||||
# define MATCH (MATCH256-1)
|
||||
# define PRESCALE 4
|
||||
#elif MATCH1024 <= 65536
|
||||
# define MATCH (MATCH1024-1)
|
||||
# define PRESCALE 5
|
||||
#else
|
||||
# error "Cannot represent this timer frequency"
|
||||
#endif
|
||||
|
||||
/*
|
||||
* Eg. CPU_CLOCK = 8MHz, CLOCKS_PER_SEC = 100
|
||||
*
|
||||
* MATCH1 ((8000000 + 50) / 100) = 80,000 FREQ=100.0Hz
|
||||
* MATCH8 ((1000000 + 50) / 100) = 10,000 FREQ=100.0Hz <-- this one
|
||||
* MATCH64 (( 125000 + 50) / 100) = 1,250 FREQ=100.0Hz
|
||||
* MATCH256 (( 31250 + 50) / 100) = 313 FREQ=99.8Hz
|
||||
* MATCH1024 (( 7804 + 50) / 100) = 78 FREQ=100.1Hz
|
||||
*/
|
||||
|
||||
/****************************************************************************
|
||||
* Private Types
|
||||
****************************************************************************/
|
||||
|
||||
/****************************************************************************
|
||||
* Private Functions
|
||||
****************************************************************************/
|
||||
|
||||
/****************************************************************************
|
||||
* Global Functions
|
||||
****************************************************************************/
|
||||
|
||||
/****************************************************************************
|
||||
* Function: up_timerisr
|
||||
*
|
||||
* Description:
|
||||
* The timer ISR will perform a variety of services for various portions
|
||||
* of the systems.
|
||||
*
|
||||
****************************************************************************/
|
||||
|
||||
int up_timerisr(int irq, uint32_t *regs)
|
||||
{
|
||||
/* Process timer interrupt */
|
||||
|
||||
sched_process_timer();
|
||||
return 0;
|
||||
}
|
||||
|
||||
/****************************************************************************
|
||||
* Function: up_timerinit
|
||||
*
|
||||
* Description:
|
||||
* This function is called during start-up to initialize the timer
|
||||
* interrupt. NOTE: This function depends on setup of OSC32 by
|
||||
* up_clkinitialize().
|
||||
*
|
||||
****************************************************************************/
|
||||
|
||||
void up_timerinit(void)
|
||||
{
|
||||
/* Setup timer 1 compare match A to generate a tick interrupt.
|
||||
*
|
||||
* First, setup the match value for compare match A.
|
||||
*/
|
||||
|
||||
OCR1AH = (uint8_t)((uint16_t)MATCH >> 8);
|
||||
OCR1AL = (uint8_t)((uint16_t)MATCH & 0xff);
|
||||
|
||||
/* Setup clock source and compare match behaviour. */
|
||||
|
||||
TCCR1A = 0x08 | PRESCALE;
|
||||
|
||||
/* Attach the timer interrupt vector */
|
||||
|
||||
(void)irq_attach(AT90USB_IRQ_T2COMPA, (xcpt_t)up_timerisr);
|
||||
|
||||
/* Enable the interrupt on compare match A */
|
||||
|
||||
TIMSK1 |= 0x10;
|
||||
}
|
||||
@@ -0,0 +1,110 @@
|
||||
/****************************************************************************
|
||||
* arch/avr/src/avr/up_initialstate.c
|
||||
*
|
||||
* Copyright (C) 2011 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 <sys/types.h>
|
||||
#include <stdint.h>
|
||||
#include <string.h>
|
||||
|
||||
#include <nuttx/arch.h>
|
||||
#include <arch/irq.h>
|
||||
#include <avr/io.h>
|
||||
|
||||
#include "up_internal.h"
|
||||
#include "up_arch.h"
|
||||
|
||||
/****************************************************************************
|
||||
* Pre-processor Definitions
|
||||
****************************************************************************/
|
||||
|
||||
/****************************************************************************
|
||||
* Private Data
|
||||
****************************************************************************/
|
||||
|
||||
/****************************************************************************
|
||||
* Private Functions
|
||||
****************************************************************************/
|
||||
|
||||
/****************************************************************************
|
||||
* Public Functions
|
||||
****************************************************************************/
|
||||
|
||||
/****************************************************************************
|
||||
* Name: up_initial_state
|
||||
*
|
||||
* Description:
|
||||
* A new thread is being started and a new TCB has been created. This
|
||||
* function is called to initialize the processor specific portions of the
|
||||
* new TCB.
|
||||
*
|
||||
* This function must setup the intial architecture registers and/or stack
|
||||
* so that execution will begin at tcb->start on the next context switch.
|
||||
*
|
||||
****************************************************************************/
|
||||
|
||||
void up_initial_state(_TCB *tcb)
|
||||
{
|
||||
struct xcptcontext *xcp = &tcb->xcp;
|
||||
|
||||
/* Initialize the initial exception register context structure. Zeroing
|
||||
* all registers is a good debug helper, but should not be necessary.
|
||||
*/
|
||||
|
||||
memset(xcp, 0, sizeof(struct xcptcontext));
|
||||
|
||||
/* Set the initial stack pointer to the "base" of the allocated stack */
|
||||
|
||||
xcp->regs[REG_SPH] = (uint8_t)((uint16_t)tcb->adj_stack_ptr >> 8);
|
||||
xcp->regs[REG_SPL] = (uint8_t)((uint16_t)tcb->adj_stack_ptr & 0xff);
|
||||
|
||||
/* Save the task entry point */
|
||||
|
||||
xcp->regs[REG_PCH] = (uint8_t)((uint16_t)tcb->start >> 8);
|
||||
xcp->regs[REG_PCL] = (uint8_t)((uint16_t)tcb->start & 0xff);
|
||||
|
||||
/* Enable or disable interrupts, based on user configuration */
|
||||
|
||||
#ifdef CONFIG_SUPPRESS_INTERRUPTS
|
||||
xcp->regs[REG_SREG] = getsreg() & ~(1 << SREG_I);
|
||||
#else
|
||||
xcp->regs[REG_SREG] = getsreg() | (1 << SREG_I);
|
||||
#endif
|
||||
}
|
||||
|
||||
@@ -0,0 +1,108 @@
|
||||
/****************************************************************************
|
||||
* arch/avr/src/avr/up_irq.c
|
||||
*
|
||||
* Copyright (C) 2010-2011 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 "at90usb_config.h"
|
||||
|
||||
#include <stdint.h>
|
||||
#include <errno.h>
|
||||
#include <debug.h>
|
||||
|
||||
#include <nuttx/irq.h>
|
||||
#include <nuttx/arch.h>
|
||||
#include <arch/irq.h>
|
||||
#include <avr/io.h>
|
||||
|
||||
#include "up_arch.h"
|
||||
#include "os_internal.h"
|
||||
#include "up_internal.h"
|
||||
|
||||
/****************************************************************************
|
||||
* Definitions
|
||||
****************************************************************************/
|
||||
|
||||
/****************************************************************************
|
||||
* Public Data
|
||||
****************************************************************************/
|
||||
|
||||
volatile uint8_t *current_regs;
|
||||
|
||||
/****************************************************************************
|
||||
* Private Types
|
||||
****************************************************************************/
|
||||
|
||||
/****************************************************************************
|
||||
* Private Data
|
||||
****************************************************************************/
|
||||
|
||||
/****************************************************************************
|
||||
* Private Functions
|
||||
****************************************************************************/
|
||||
|
||||
/****************************************************************************
|
||||
* Public Functions
|
||||
****************************************************************************/
|
||||
|
||||
/****************************************************************************
|
||||
* Name: up_irqinitialize
|
||||
****************************************************************************/
|
||||
|
||||
void up_irqinitialize(void)
|
||||
{
|
||||
/* currents_regs is non-NULL only while processing an interrupt */
|
||||
|
||||
current_regs = NULL;
|
||||
|
||||
/* Initialize GPIO interrupt facilities */
|
||||
|
||||
#ifdef CONFIG_AVR32_GPIOIRQ
|
||||
#ifdef CONFIG_HAVE_WEAKFUNCTIONS
|
||||
if (gpio_irqinitialize != NULL)
|
||||
#endif
|
||||
{
|
||||
gpio_irqinitialize();
|
||||
}
|
||||
#endif
|
||||
|
||||
/* And finally, enable interrupts */
|
||||
|
||||
#ifndef CONFIG_SUPPRESS_INTERRUPTS
|
||||
irqrestore(getsreg() | (1 << SREG_I));
|
||||
#endif
|
||||
}
|
||||
@@ -164,7 +164,7 @@ void up_schedule_sigaction(_TCB *tcb, sig_deliver_t sigdeliver)
|
||||
|
||||
current_regs[REG_PCL] = (uint16_t)up_sigdeliver & 0xff;
|
||||
current_regs[REG_PCH] = (uint16_t)up_sigdeliver >> 8;
|
||||
current_regs[REG_SREG] |= (1 << SREG_I);
|
||||
current_regs[REG_SREG] &= ~(1 << SREG_I);
|
||||
|
||||
/* And make sure that the saved context in the TCB
|
||||
* is the same as the interrupt return context.
|
||||
@@ -198,7 +198,7 @@ void up_schedule_sigaction(_TCB *tcb, sig_deliver_t sigdeliver)
|
||||
|
||||
tcb->xcp.regs[REG_PCL] = (uint16_t)up_sigdeliver & 0xff;
|
||||
tcb->xcp.regs[REG_PCH] = (uint16_t)up_sigdeliver >> 8;
|
||||
tcb->xcp.regs[REG_SREG] |= (1 << SREG_I);
|
||||
tcb->xcp.regs[REG_SREG] &= ~(1 << SREG_I);
|
||||
}
|
||||
|
||||
irqrestore(flags);
|
||||
|
||||
@@ -121,10 +121,10 @@ void up_initial_state(_TCB *tcb)
|
||||
|
||||
/* Enable or disable interrupts, based on user configuration */
|
||||
|
||||
# ifdef CONFIG_SUPPRESS_INTERRUPTS
|
||||
#ifdef CONFIG_SUPPRESS_INTERRUPTS
|
||||
xcp->regs[REG_SR] = avr32_sr() | AVR32_SR_GM_MASK;
|
||||
# else
|
||||
#else
|
||||
xcp->regs[REG_SR] = avr32_sr() & ~AVR32_SR_GM_MASK;
|
||||
# endif
|
||||
#endif
|
||||
}
|
||||
|
||||
|
||||
@@ -0,0 +1,154 @@
|
||||
/****************************************************************************
|
||||
* arch/avr/src/common/up_assert.c
|
||||
*
|
||||
* Copyright (C) 2010-2011 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 <stdint.h>
|
||||
#include <stdlib.h>
|
||||
#include <assert.h>
|
||||
#include <debug.h>
|
||||
|
||||
#include <nuttx/irq.h>
|
||||
#include <nuttx/arch.h>
|
||||
#include <arch/board/board.h>
|
||||
|
||||
#include "up_arch.h"
|
||||
#include "os_internal.h"
|
||||
#include "up_internal.h"
|
||||
|
||||
/****************************************************************************
|
||||
* Pre-processor Definitions
|
||||
****************************************************************************/
|
||||
|
||||
/* The following is just intended to keep some ugliness out of the mainline
|
||||
* code. We are going to print the task name if:
|
||||
*
|
||||
* CONFIG_TASK_NAME_SIZE > 0 && <-- The task has a name
|
||||
* (defined(CONFIG_DEBUG) || <-- And the debug is enabled (lldbg used)
|
||||
* defined(CONFIG_ARCH_STACKDUMP)) <-- Or lib_lowprintf() is used
|
||||
*/
|
||||
|
||||
#undef CONFIG_PRINT_TASKNAME
|
||||
#if CONFIG_TASK_NAME_SIZE > 0 && (defined(CONFIG_DEBUG) || defined(CONFIG_ARCH_STACKDUMP))
|
||||
# define CONFIG_PRINT_TASKNAME 1
|
||||
#endif
|
||||
|
||||
/****************************************************************************
|
||||
* Private Data
|
||||
****************************************************************************/
|
||||
|
||||
/****************************************************************************
|
||||
* Private Functions
|
||||
****************************************************************************/
|
||||
|
||||
/****************************************************************************
|
||||
* Name: _up_assert
|
||||
****************************************************************************/
|
||||
|
||||
static void _up_assert(int errorcode) /* __attribute__ ((noreturn)) */
|
||||
{
|
||||
/* Are we in an interrupt handler or the idle task? */
|
||||
|
||||
if (current_regs || ((_TCB*)g_readytorun.head)->pid == 0)
|
||||
{
|
||||
(void)irqsave();
|
||||
for(;;)
|
||||
{
|
||||
#ifdef CONFIG_ARCH_LEDS
|
||||
up_ledon(LED_PANIC);
|
||||
up_mdelay(250);
|
||||
up_ledoff(LED_PANIC);
|
||||
up_mdelay(250);
|
||||
#endif
|
||||
}
|
||||
}
|
||||
else
|
||||
{
|
||||
exit(errorcode);
|
||||
}
|
||||
}
|
||||
|
||||
/****************************************************************************
|
||||
* Public Functions
|
||||
****************************************************************************/
|
||||
|
||||
/****************************************************************************
|
||||
* Name: up_assert
|
||||
****************************************************************************/
|
||||
|
||||
void up_assert(const uint8_t *filename, int lineno)
|
||||
{
|
||||
#ifdef CONFIG_PRINT_TASKNAME
|
||||
_TCB *rtcb = (_TCB*)g_readytorun.head;
|
||||
#endif
|
||||
|
||||
up_ledon(LED_ASSERTION);
|
||||
#ifdef CONFIG_PRINT_TASKNAME
|
||||
lldbg("Assertion failed at file:%s line: %d task: %s\n",
|
||||
filename, lineno, rtcb->name);
|
||||
#else
|
||||
lldbg("Assertion failed at file:%s line: %d\n",
|
||||
filename, lineno);
|
||||
#endif
|
||||
up_dumpstate();
|
||||
_up_assert(EXIT_FAILURE);
|
||||
}
|
||||
|
||||
/****************************************************************************
|
||||
* Name: up_assert_code
|
||||
****************************************************************************/
|
||||
|
||||
void up_assert_code(const uint8_t *filename, int lineno, int errorcode)
|
||||
{
|
||||
#ifdef CONFIG_PRINT_TASKNAME
|
||||
_TCB *rtcb = (_TCB*)g_readytorun.head;
|
||||
#endif
|
||||
|
||||
up_ledon(LED_ASSERTION);
|
||||
#ifdef CONFIG_PRINT_TASKNAME
|
||||
lldbg("Assertion failed at file:%s line: %d task: %s error code: %d\n",
|
||||
filename, lineno, rtcb->name, errorcode);
|
||||
#else
|
||||
lldbg("Assertion failed at file:%s line: %d error code: %d\n",
|
||||
filename, lineno, errorcode);
|
||||
#endif
|
||||
up_dumpstate();
|
||||
_up_assert(errorcode);
|
||||
}
|
||||
|
||||
@@ -33,8 +33,8 @@
|
||||
*
|
||||
************************************************************************************/
|
||||
|
||||
#ifndef __ARCH_MIPS_SRC_LPC17XX_LPC17_PIC32_H
|
||||
#define __ARCH_MIPS_SRC_LPC17XX_LPC17_PIC32_H
|
||||
#ifndef __ARCH_MIPS_SRC_PIC32MX_PIC32MX_PIC32_H
|
||||
#define __ARCH_MIPS_SRC_PIC32MX_PIC32MX_PIC32_H
|
||||
|
||||
/************************************************************************************
|
||||
* Included Files
|
||||
@@ -511,7 +511,7 @@
|
||||
/* Are any UARTs enabled? */
|
||||
|
||||
#undef HAVE_UART_DEVICE
|
||||
#if defined(CONFIG_PIC32MX_UART1) || defined(CONFIG_LPC17_UART1)
|
||||
#if defined(CONFIG_PIC32MX_UART1) || defined(CONFIG_PIC32MX_UART1)
|
||||
# define HAVE_UART_DEVICE 1
|
||||
#endif
|
||||
|
||||
@@ -522,7 +522,7 @@
|
||||
#if defined(CONFIG_UART1_SERIAL_CONSOLE) && defined(CONFIG_PIC32MX_UART1)
|
||||
# undef CONFIG_UART2_SERIAL_CONSOLE
|
||||
# define HAVE_SERIAL_CONSOLE 1
|
||||
#elif defined(CONFIG_UART2_SERIAL_CONSOLE) && defined(CONFIG_LPC17_UART2)
|
||||
#elif defined(CONFIG_UART2_SERIAL_CONSOLE) && defined(CONFIG_PIC32MX_UART2)
|
||||
# undef CONFIG_UART1_SERIAL_CONSOLE
|
||||
# define HAVE_SERIAL_CONSOLE 1
|
||||
#else
|
||||
@@ -534,11 +534,11 @@
|
||||
/* Device Configuration *************************************************************/
|
||||
/* DEVCFG3 */
|
||||
|
||||
#ifndef CONFIG_PIC32MX_USERID /* User ID */
|
||||
# define CONFIG_PIC32MX_USERID 0x584e /* "NutX" */
|
||||
#ifndef CONFIG_PIC32MX_USERID /* User ID */
|
||||
# define CONFIG_PIC32MX_USERID 0x584e /* "NutX" */
|
||||
#endif
|
||||
|
||||
#ifndef CONFIG_PIC32MX_SRSSEL /* Shadow register interrupt priority */
|
||||
#ifndef CONFIG_PIC32MX_SRSSEL /* Shadow register interrupt priority */
|
||||
# define CONFIG_PIC32MX_SRSSEL INT_ICP_MIN_PRIORITY
|
||||
#endif
|
||||
|
||||
@@ -771,4 +771,4 @@
|
||||
* Public Functions
|
||||
************************************************************************************/
|
||||
|
||||
#endif /* __ARCH_MIPS_SRC_LPC17XX_LPC17_PIC32_H */
|
||||
#endif /* __ARCH_MIPS_SRC_PIC32MX_PIC32MX_PIC32_H */
|
||||
|
||||
Reference in New Issue
Block a user