More LPC43 files in various states of work
git-svn-id: https://nuttx.svn.sourceforge.net/svnroot/nuttx/trunk@4909 7fd9a85b-ad96-42d3-883c-3090e2eb8679
This commit is contained in:
patacongo
parent
88e2bcd523
commit
63fd9818d0
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@ -261,7 +261,7 @@ static int adc_interrupt(int irq, void *context)
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****************************************************************************/
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/****************************************************************************
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* Name: stm32_adcinitialize
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* Name: lpc17_adcinitialize
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*
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* Description:
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* Initialize the adc
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@ -797,7 +797,7 @@ EXTERN void lpc17_dmadump(DMA_HANDLE handle, const struct lpc17_dmaregs_s *regs,
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#endif
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/****************************************************************************
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* Name: stm32_adcinitialize
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* Name: lpc17_adcinitialize
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*
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* Description:
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* Initialize the adc
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@ -59,7 +59,7 @@ endif
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CHIP_ASRCS =
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CHIP_CSRCS = lpc43_clrpend.c lpc43_gpio.c lpc43_irq.c lpc43_lowputc.c
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CHIP_CSRCS += lpc43_pinconfig.c lpc43_start.c lpc43_timerisr.c
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CHIP_CSRCS += lpc43_pinconfig.c lpc43_rgu.c lpc43_start.c lpc43_timerisr.c
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ifneq ($(CONFIG_IDLE_CUSTOM),y)
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CHIP_CSRCS += lpc43_idle.c
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@ -81,3 +81,12 @@ CHIP_CSRCS += lpc43_ssp.c
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endif
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endif
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ifeq ($(CONFIG_LPC43_I2C0),y)
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CHIP_CSRCS += lpc43_i2c.c
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else
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ifeq ($(CONFIG_LPC43_I2C1),y)
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CHIP_CSRCS += lpc43_i2c.c
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endif
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endif
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@ -624,7 +624,7 @@
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/* Bits 27-31: Reserved */
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/* Reset external status register 0 for CORE_RST */
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#define RGU_EXTSTAT_CORE_EXTRESET (1 << 0) /* Bit 0: Reset activated by external reset from reset pin
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#define RGU_EXTSTAT_CORE_EXTRESET (1 << 0) /* Bit 0: Reset activated by external reset from reset pin */
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/* Bits 1-3: Reserved */
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#define RGU_EXTSTAT_CORE_BODRESET (1 << 4) /* Bit 4: Reset activated by BOD reset */
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#define RGU_EXTSTAT_CORE_WWDTRESET (1 << 5) /* Bit 5: Reset activated by WWDT time-out */
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@ -0,0 +1,284 @@
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/************************************************************************************
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* arch/arm/src/lpc43xx/lpc43_adc.c
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*
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* Copyright (C) 2012 Gregory Nutt. All rights reserved.
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* Author: Gregory Nutt <gnutt@nuttx.org>
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*
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* Ported from from the LPC17 version:
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*
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* Copyright (C) 2011 Li Zhuoyi. All rights reserved.
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* Author: Li Zhuoyi <lzyy.cn@gmail.com>
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* History: 0.1 2011-08-05 initial version
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*
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* This file is a part of NuttX:
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*
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* Copyright (C) 2010-2012 Gregory Nutt. All rights reserved.
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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 <stdio.h>
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#include <sys/types.h>
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#include <stdint.h>
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#include <stdbool.h>
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#include <semaphore.h>
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#include <errno.h>
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#include <debug.h>
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#include <arch/board/board.h>
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#include <nuttx/arch.h>
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#include <nuttx/analog/adc.h>
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#include "up_internal.h"
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#include "up_arch.h"
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#include "chip.h"
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#include "lpc43_internal.h"
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#include "lpc43_syscon.h"
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#include "lpc43_pinconn.h"
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#include "lpc43_adc.h"
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#if defined(CONFIG_LPC43_ADC)
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#ifndef CONFIG_ADC0_MASK
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#define CONFIG_ADC0_MASK 0x01
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#endif
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#ifndef CONFIG_ADC0_SPS
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#define CONFIG_ADC0_SPS 1000
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#endif
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#ifndef CONFIG_ADC0_AVERAGE
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#define CONFIG_ADC0_AVERAGE 200
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#endif
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/****************************************************************************
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* Private Types
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****************************************************************************/
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struct up_dev_s
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{
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uint8_t mask;
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uint32_t sps;
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int irq;
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int32_t buf[8];
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uint8_t count[8];
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};
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/****************************************************************************
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* Private Function Prototypes
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****************************************************************************/
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/* ADC methods */
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static void adc_reset(FAR struct adc_dev_s *dev);
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static int adc_setup(FAR struct adc_dev_s *dev);
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static void adc_shutdown(FAR struct adc_dev_s *dev);
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static void adc_rxint(FAR struct adc_dev_s *dev, bool enable);
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static int adc_ioctl(FAR struct adc_dev_s *dev, int cmd, unsigned long arg);
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static int adc_interrupt(int irq, void *context);
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/****************************************************************************
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* Private Data
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****************************************************************************/
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static const struct adc_ops_s g_adcops =
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{
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.ao_reset =adc_reset,
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.ao_setup = adc_setup,
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.ao_shutdown = adc_shutdown,
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.ao_rxint = adc_rxint,
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.ao_ioctl = adc_ioctl,
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};
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static struct up_dev_s g_adcpriv =
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{
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.sps = CONFIG_ADC0_SPS,
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.mask = CONFIG_ADC0_MASK,
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.irq = LPC43_IRQ_ADC,
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};
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static struct adc_dev_s g_adcdev =
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{
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.ad_ops = &g_adcops,
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.ad_priv= &g_adcpriv,
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};
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/****************************************************************************
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* Private Functions
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****************************************************************************/
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/* Reset the ADC device. Called early to initialize the hardware. This
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* is called, before ao_setup() and on error conditions.
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*/
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static void adc_reset(FAR struct adc_dev_s *dev)
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{
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irqstate_t flags;
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uint32_t regval;
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FAR struct up_dev_s *priv = (FAR struct up_dev_s *)dev->ad_priv;
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flags = irqsave();
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regval = getreg32(LPC43_SYSCON_PCONP);
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regval |= SYSCON_PCONP_PCADC;
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putreg32(regval, LPC43_SYSCON_PCONP);
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putreg32(ADC_CR_PDN,LPC43_ADC_CR);
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regval = getreg32(LPC43_SYSCON_PCLKSEL0);
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regval &= ~SYSCON_PCLKSEL0_ADC_MASK;
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regval |= (SYSCON_PCLKSEL_CCLK8 << SYSCON_PCLKSEL0_ADC_SHIFT);
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putreg32(regval, LPC43_SYSCON_PCLKSEL0);
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uint32_t clkdiv=LPC43_CCLK/8/65/priv->sps;
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clkdiv<<=8;
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clkdiv&=0xff00;
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putreg32(ADC_CR_PDN|ADC_CR_BURST|clkdiv|priv->mask,LPC43_ADC_CR);
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if(priv->mask&0x01)
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lpc43_configgpio(GPIO_AD0p0);
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else if(priv->mask&0x02)
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lpc43_configgpio(GPIO_AD0p1);
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else if(priv->mask&0x04)
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lpc43_configgpio(GPIO_AD0p2);
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else if(priv->mask&0x08)
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lpc43_configgpio(GPIO_AD0p3);
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else if(priv->mask&0x10)
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lpc43_configgpio(GPIO_AD0p4);
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else if(priv->mask&0x20)
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lpc43_configgpio(GPIO_AD0p5);
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else if(priv->mask&0x40)
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lpc43_configgpio(GPIO_AD0p6);
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else if(priv->mask&0x80)
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lpc43_configgpio(GPIO_AD0p7);
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irqrestore(flags);
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}
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/* Configure the ADC. This method is called the first time that the ADC
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* device is opened. This will occur when the port is first opened.
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* This setup includes configuring and attaching ADC interrupts. Interrupts
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* are all disabled upon return.
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*/
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static int adc_setup(FAR struct adc_dev_s *dev)
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{
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int i;
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FAR struct up_dev_s *priv = (FAR struct up_dev_s *)dev->ad_priv;
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int ret = irq_attach(priv->irq, adc_interrupt);
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if (ret == OK)
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{
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for (i = 0; i < 8; i++)
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{
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priv->buf[i]=0;
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priv->count[i]=0;
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}
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up_enable_irq(priv->irq);
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}
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return ret;
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}
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/* Disable the ADC. This method is called when the ADC device is closed.
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* This method reverses the operation the setup method.
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*/
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static void adc_shutdown(FAR struct adc_dev_s *dev)
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{
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FAR struct up_dev_s *priv = (FAR struct up_dev_s *)dev->ad_priv;
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up_disable_irq(priv->irq);
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irq_detach(priv->irq);
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}
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/* Call to enable or disable RX interrupts */
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static void adc_rxint(FAR struct adc_dev_s *dev, bool enable)
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{
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FAR struct up_dev_s *priv = (FAR struct up_dev_s *)dev->ad_priv;
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if (enable)
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putreg32(ADC_INTEN_GLOBAL, LPC43_ADC_INTEN);
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else
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putreg32(0x00, LPC43_ADC_INTEN);
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}
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/* All ioctl calls will be routed through this method */
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static int adc_ioctl(FAR struct adc_dev_s *dev, int cmd, unsigned long arg)
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{
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dbg("Fix me:Not Implemented\n");
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return 0;
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}
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static int adc_interrupt(int irq, void *context)
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{
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uint32_t regval;
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FAR struct up_dev_s *priv = (FAR struct up_dev_s *)g_adcdev.ad_priv;
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unsigned char ch;
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int32_t value;
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regval = getreg32(LPC43_ADC_GDR);
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ch = (regval >> 24) & 0x07;
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priv->buf[ch] += regval & 0xfff0;
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priv->count[ch]++;
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if (priv->count[ch] >= CONFIG_ADC0_AVERAGE)
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{
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value = priv->buf[ch] / priv->count[ch];
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value <<= 15;
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adc_receive(&g_adcdev,ch,value);
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priv->buf[ch] = 0;
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priv->count[ch] = 0;
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}
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return OK;
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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: stm32_adcinitialize
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*
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* Description:
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* Initialize the adc
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*
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* Returned Value:
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* Valid can device structure reference on succcess; a NULL on failure
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*
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****************************************************************************/
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FAR struct adc_dev_s *lpc43_adcinitialize(void)
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{
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return &g_adcdev;
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}
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#endif
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@ -0,0 +1,95 @@
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/****************************************************************************
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* arch/arm/src/lpc43xx/lpc43_adc.h
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*
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* Copyright (C) 2012 Gregory Nutt. All rights reserved.
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* Author: Gregory Nutt <gnutt@nuttx.org>
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*
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* 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.
|
||||
*
|
||||
****************************************************************************/
|
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#ifndef __ARCH_ARM_SRC_LPC43XX_LPC43_ADC_H
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#define __ARCH_ARM_SRC_LPC43XX_LPC43_ADC_H
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/****************************************************************************
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* Included Files
|
||||
****************************************************************************/
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#include <nuttx/config.h>
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#include <nuttx/analog/adc.h>
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#include "chip/lpc43_adc.h"
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#ifdef CONFIG_LPC43_ADC
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/****************************************************************************
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* Pre-processor Definitions
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****************************************************************************/
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/****************************************************************************
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* Public Types
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****************************************************************************/
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/****************************************************************************
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* Public Data
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****************************************************************************/
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#ifndef __ASSEMBLY__
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#undef EXTERN
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#if defined(__cplusplus)
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#define EXTERN extern "C"
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extern "C" {
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#else
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#define EXTERN extern
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#endif
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/****************************************************************************
|
||||
* Public Functions
|
||||
****************************************************************************/
|
||||
|
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/****************************************************************************
|
||||
* Name: lpc43_adcinitialize
|
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*
|
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* Description:
|
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* Initialize the adc
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*
|
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* Returned Value:
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* Valid can device structure reference on succcess; a NULL on failure
|
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*
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****************************************************************************/
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FAR struct adc_dev_s *lpc43_adcinitialize(void);
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#undef EXTERN
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#if defined(__cplusplus)
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}
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#endif
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#endif /* __ASSEMBLY__ */
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#endif /* CONFIG_LPC43_ADC */
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#endif /* __ARCH_ARM_SRC_LPC43XX_LPC43_ADC_H */
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@ -0,0 +1,204 @@
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/************************************************************************************
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* arch/arm/src/lpc43xx/lpc43_dac.c
|
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*
|
||||
* Copyright (C) 2012 Gregory Nutt. All rights reserved.
|
||||
* Author: Gregory Nutt <gnutt@nuttx.org>
|
||||
*
|
||||
* Ported from from the LPC17 version:
|
||||
*
|
||||
* Copyright (C) 2011 Li Zhuoyi. All rights reserved.
|
||||
* Author: Li Zhuoyi <lzyy.cn@gmail.com>
|
||||
* History: 0.1 2011-08-05 initial version
|
||||
*
|
||||
* This file is a part of NuttX:
|
||||
*
|
||||
* Copyright (C) 2010-2012 Gregory Nutt. All rights reserved.
|
||||
*
|
||||
* 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 <stdio.h>
|
||||
#include <sys/types.h>
|
||||
#include <stdint.h>
|
||||
#include <stdbool.h>
|
||||
#include <semaphore.h>
|
||||
#include <errno.h>
|
||||
#include <debug.h>
|
||||
|
||||
#include <arch/board/board.h>
|
||||
#include <nuttx/arch.h>
|
||||
#include <nuttx/analog/dac.h>
|
||||
|
||||
#include "up_internal.h"
|
||||
#include "up_arch.h"
|
||||
|
||||
#include "chip.h"
|
||||
|
||||
#include "lpc43_syscon.h"
|
||||
#include "lpc43_pinconn.h"
|
||||
#include "lpc43_dac.h"
|
||||
|
||||
#ifdef CONFIG_LPC43_DAC
|
||||
|
||||
/****************************************************************************
|
||||
* Private Types
|
||||
****************************************************************************/
|
||||
|
||||
/****************************************************************************
|
||||
* Private Function Prototypes
|
||||
****************************************************************************/
|
||||
|
||||
/* DAC methods */
|
||||
|
||||
static void dac_reset(FAR struct dac_dev_s *dev);
|
||||
static int dac_setup(FAR struct dac_dev_s *dev);
|
||||
static void dac_shutdown(FAR struct dac_dev_s *dev);
|
||||
static void dac_txint(FAR struct dac_dev_s *dev, bool enable);
|
||||
static int dac_send(FAR struct dac_dev_s *dev, FAR struct dac_msg_s *msg);
|
||||
static int dac_ioctl(FAR struct dac_dev_s *dev, int cmd, unsigned long arg);
|
||||
static int dac_interrupt(int irq, void *context);
|
||||
|
||||
/****************************************************************************
|
||||
* Private Data
|
||||
****************************************************************************/
|
||||
|
||||
static const struct dac_ops_s g_dacops =
|
||||
{
|
||||
.ao_reset =dac_reset,
|
||||
.ao_setup = dac_setup,
|
||||
.ao_shutdown = dac_shutdown,
|
||||
.ao_txint = dac_txint,
|
||||
.ao_send = dac_send,
|
||||
.ao_ioctl = dac_ioctl,
|
||||
};
|
||||
|
||||
static struct dac_dev_s g_dacdev =
|
||||
{
|
||||
.ad_ops = &g_dacops,
|
||||
};
|
||||
|
||||
/****************************************************************************
|
||||
* Private Functions
|
||||
****************************************************************************/
|
||||
|
||||
/* Reset the DAC device. Called early to initialize the hardware. This
|
||||
* is called, before ao_setup() and on error conditions.
|
||||
*/
|
||||
|
||||
static void dac_reset(FAR struct dac_dev_s *dev)
|
||||
{
|
||||
irqstate_t flags;
|
||||
uint32_t regval;
|
||||
|
||||
flags = irqsave();
|
||||
|
||||
regval = getreg32(LPC43_SYSCON_PCLKSEL0);
|
||||
regval &= ~SYSCON_PCLKSEL0_DAC_MASK;
|
||||
regval |= (SYSCON_PCLKSEL_CCLK8 << SYSCON_PCLKSEL0_DAC_SHIFT);
|
||||
putreg32(regval, LPC43_SYSCON_PCLKSEL0);
|
||||
|
||||
//putreg32(DAC_CTRL_DBLBUFEN,LPC43_DAC_CTRL); ?
|
||||
|
||||
lpc43_configgpio(GPIO_AOUT);
|
||||
|
||||
irqrestore(flags);
|
||||
}
|
||||
|
||||
/* Configure the DAC. This method is called the first time that the DAC
|
||||
* device is opened. This will occur when the port is first opened.
|
||||
* This setup includes configuring and attaching DAC interrupts. Interrupts
|
||||
* are all disabled upon return.
|
||||
*/
|
||||
|
||||
static int dac_setup(FAR struct dac_dev_s *dev)
|
||||
{
|
||||
return OK;
|
||||
}
|
||||
|
||||
/* Disable the DAC. This method is called when the DAC device is closed.
|
||||
* This method reverses the operation the setup method.
|
||||
*/
|
||||
|
||||
static void dac_shutdown(FAR struct dac_dev_s *dev)
|
||||
{
|
||||
}
|
||||
|
||||
/* Call to enable or disable TX interrupts */
|
||||
|
||||
static void dac_txint(FAR struct dac_dev_s *dev, bool enable)
|
||||
{
|
||||
}
|
||||
|
||||
static int dac_send(FAR struct dac_dev_s *dev, FAR struct dac_msg_s *msg)
|
||||
{
|
||||
putreg32((msg->am_data>>16)&0xfffff,LPC43_DAC_CR);
|
||||
dac_txdone(&g_dacdev);
|
||||
return 0;
|
||||
}
|
||||
|
||||
/* All ioctl calls will be routed through this method */
|
||||
|
||||
static int dac_ioctl(FAR struct dac_dev_s *dev, int cmd, unsigned long arg)
|
||||
{
|
||||
dbg("Fix me:Not Implemented\n");
|
||||
return 0;
|
||||
}
|
||||
|
||||
static int dac_interrupt(int irq, void *context)
|
||||
{
|
||||
}
|
||||
|
||||
/****************************************************************************
|
||||
* Public Functions
|
||||
****************************************************************************/
|
||||
|
||||
/****************************************************************************
|
||||
* Name: lpc43_dacinitialize
|
||||
*
|
||||
* Description:
|
||||
* Initialize the DAC
|
||||
*
|
||||
* Returned Value:
|
||||
* Valid dac device structure reference on succcess; a NULL on failure
|
||||
*
|
||||
****************************************************************************/
|
||||
|
||||
FAR struct dac_dev_s *lpc43_dacinitialize(void)
|
||||
{
|
||||
return &g_dacdev;
|
||||
}
|
||||
|
||||
#endif /* CONFIG_LPC43_DAC */
|
||||
|
||||
|
|
@ -0,0 +1,95 @@
|
|||
/****************************************************************************
|
||||
* arch/arm/src/lpc43xx/lpc43_dac.h
|
||||
*
|
||||
* Copyright (C) 2012 Gregory Nutt. All rights reserved.
|
||||
* Author: Gregory Nutt <gnutt@nuttx.org>
|
||||
*
|
||||
* 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_ARM_SRC_LPC43XX_LPC43_DAC_H
|
||||
#define __ARCH_ARM_SRC_LPC43XX_LPC43_DAC_H
|
||||
|
||||
/****************************************************************************
|
||||
* Included Files
|
||||
****************************************************************************/
|
||||
|
||||
#include <nuttx/config.h>
|
||||
#include <nuttx/analog/dac.h>
|
||||
#include "chip/lpc43_dac.h"
|
||||
|
||||
#ifdef CONFIG_LPC43_DAC
|
||||
|
||||
/****************************************************************************
|
||||
* Pre-processor Definitions
|
||||
****************************************************************************/
|
||||
|
||||
/****************************************************************************
|
||||
* Public Types
|
||||
****************************************************************************/
|
||||
|
||||
/****************************************************************************
|
||||
* Public Data
|
||||
****************************************************************************/
|
||||
|
||||
#ifndef __ASSEMBLY__
|
||||
|
||||
#undef EXTERN
|
||||
#if defined(__cplusplus)
|
||||
#define EXTERN extern "C"
|
||||
extern "C" {
|
||||
#else
|
||||
#define EXTERN extern
|
||||
#endif
|
||||
|
||||
/****************************************************************************
|
||||
* Public Functions
|
||||
****************************************************************************/
|
||||
|
||||
/****************************************************************************
|
||||
* Name: lpc43_dacinitialize
|
||||
*
|
||||
* Description:
|
||||
* Initialize the DAC
|
||||
*
|
||||
* Returned Value:
|
||||
* Valid dac device structure reference on succcess; a NULL on failure
|
||||
*
|
||||
****************************************************************************/
|
||||
|
||||
EXTERN FAR struct dac_dev_s *lpc43_dacinitialize(void);
|
||||
|
||||
#undef EXTERN
|
||||
#if defined(__cplusplus)
|
||||
}
|
||||
#endif
|
||||
|
||||
#endif /* __ASSEMBLY__ */
|
||||
#endif /* CONFIG_LPC43_DAC */
|
||||
#endif /* __ARCH_ARM_SRC_LPC43XX_LPC43_DAC_H */
|
||||
|
|
@ -0,0 +1,226 @@
|
|||
/****************************************************************************
|
||||
* arch/arm/src/lpc43xx/lpc43_gpdma.c
|
||||
*
|
||||
* Copyright (C) 2012 Gregory Nutt. All rights reserved.
|
||||
* Author: Gregory Nutt <gnutt@nuttx.org>
|
||||
*
|
||||
* 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 <stdbool.h>
|
||||
#include <errno.h>
|
||||
#include <debug.h>
|
||||
|
||||
#include <nuttx/arch.h>
|
||||
|
||||
#include "up_internal.h"
|
||||
#include "up_arch.h"
|
||||
|
||||
#include "chip.h"
|
||||
|
||||
#include "lpc43_syscon.h"
|
||||
#include "lpc43_gpdma.h"
|
||||
|
||||
#ifdef CONFIG_LPC43_GPDMA
|
||||
|
||||
/****************************************************************************
|
||||
* Definitions
|
||||
****************************************************************************/
|
||||
|
||||
/* Enables debug output from this file (needs CONFIG_DEBUG too) */
|
||||
|
||||
#undef DMA_DEBUG /* Define to enable debug */
|
||||
#undef DMA_VERBOSE /* Define to enable verbose debug */
|
||||
|
||||
#ifdef DMA_DEBUG
|
||||
# define dmadbg lldbg
|
||||
# ifdef DMA_VERBOSE
|
||||
# define spivdbg lldbg
|
||||
# else
|
||||
# define spivdbg(x...)
|
||||
# endif
|
||||
#else
|
||||
# undef DMA_VERBOSE
|
||||
# define dmadbg(x...)
|
||||
# define spivdbg(x...)
|
||||
#endif
|
||||
|
||||
/****************************************************************************
|
||||
* Private Types
|
||||
****************************************************************************/
|
||||
|
||||
/****************************************************************************
|
||||
* Private Function Prototypes
|
||||
****************************************************************************/
|
||||
|
||||
/****************************************************************************
|
||||
* Private Data
|
||||
****************************************************************************/
|
||||
|
||||
/****************************************************************************
|
||||
* Public Data
|
||||
****************************************************************************/
|
||||
|
||||
/****************************************************************************
|
||||
* Private Functions
|
||||
****************************************************************************/
|
||||
|
||||
/****************************************************************************
|
||||
* Public Functions
|
||||
****************************************************************************/
|
||||
|
||||
/****************************************************************************
|
||||
* Name: lpc43_dmainitialize
|
||||
*
|
||||
* Description:
|
||||
* Initialize the GPDMA subsystem.
|
||||
*
|
||||
* Returned Value:
|
||||
* None
|
||||
*
|
||||
****************************************************************************/
|
||||
|
||||
void lpc43_dmainitilaize(void)
|
||||
{
|
||||
}
|
||||
|
||||
/****************************************************************************
|
||||
* Name: lpc43_dmachannel
|
||||
*
|
||||
* Description:
|
||||
* Allocate a DMA channel. This function sets aside a DMA channel and
|
||||
* gives the caller exclusive access to the DMA channel.
|
||||
*
|
||||
* Returned Value:
|
||||
* One success, this function returns a non-NULL, void* DMA channel
|
||||
* handle. NULL is returned on any failure. This function can fail only
|
||||
* if no DMA channel is available.
|
||||
*
|
||||
****************************************************************************/
|
||||
|
||||
DMA_HANDLE lpc43_dmachannel(void)
|
||||
{
|
||||
return NULL;
|
||||
}
|
||||
|
||||
/****************************************************************************
|
||||
* Name: lpc43_dmafree
|
||||
*
|
||||
* Description:
|
||||
* Release a DMA channel. NOTE: The 'handle' used in this argument must
|
||||
* NEVER be used again until lpc43_dmachannel() is called again to re-gain
|
||||
* a valid handle.
|
||||
*
|
||||
* Returned Value:
|
||||
* None
|
||||
*
|
||||
****************************************************************************/
|
||||
|
||||
void lpc43_dmafree(DMA_HANDLE handle)
|
||||
{
|
||||
}
|
||||
|
||||
/****************************************************************************
|
||||
* Name: lpc43_dmasetup
|
||||
*
|
||||
* Description:
|
||||
* Configure DMA for one transfer.
|
||||
*
|
||||
****************************************************************************/
|
||||
|
||||
int lpc43_dmarxsetup(DMA_HANDLE handle, uint32_t control, uint32_t config,
|
||||
uint32_t srcaddr, uint32_t destaddr, size_t nbytes)
|
||||
{
|
||||
return -ENOSYS;
|
||||
}
|
||||
|
||||
/****************************************************************************
|
||||
* Name: lpc43_dmastart
|
||||
*
|
||||
* Description:
|
||||
* Start the DMA transfer
|
||||
*
|
||||
****************************************************************************/
|
||||
|
||||
int lpc43_dmastart(DMA_HANDLE handle, dma_callback_t callback, void *arg)
|
||||
{
|
||||
return -ENOSYS;
|
||||
}
|
||||
|
||||
/****************************************************************************
|
||||
* Name: lpc43_dmastop
|
||||
*
|
||||
* Description:
|
||||
* Cancel the DMA. After lpc43_dmastop() is called, the DMA channel is
|
||||
* reset and lpc43_dmasetup() must be called before lpc43_dmastart() can be
|
||||
* called again
|
||||
*
|
||||
****************************************************************************/
|
||||
|
||||
void lpc43_dmastop(DMA_HANDLE handle)
|
||||
{
|
||||
}
|
||||
|
||||
/****************************************************************************
|
||||
* Name: lpc43_dmasample
|
||||
*
|
||||
* Description:
|
||||
* Sample DMA register contents
|
||||
*
|
||||
****************************************************************************/
|
||||
|
||||
#ifdef CONFIG_DEBUG_DMA
|
||||
void lpc43_dmasample(DMA_HANDLE handle, struct lpc43_dmaregs_s *regs)
|
||||
{
|
||||
}
|
||||
#endif /* CONFIG_DEBUG_DMA */
|
||||
|
||||
/****************************************************************************
|
||||
* Name: lpc43_dmadump
|
||||
*
|
||||
* Description:
|
||||
* Dump previously sampled DMA register contents
|
||||
*
|
||||
****************************************************************************/
|
||||
|
||||
#ifdef CONFIG_DEBUG_DMA
|
||||
void lpc43_dmadump(DMA_HANDLE handle, const struct lpc43_dmaregs_s *regs, const char *msg)
|
||||
{
|
||||
}
|
||||
#endif /* CONFIG_DEBUG_DMA */
|
||||
|
||||
#endif /* CONFIG_LPC43_GPDMA */
|
||||
|
|
@ -0,0 +1,236 @@
|
|||
/****************************************************************************
|
||||
* arch/arm/src/lpc43xx/lpc43_gpdma.h
|
||||
*
|
||||
* Copyright (C) 2012 Gregory Nutt. All rights reserved.
|
||||
* Author: Gregory Nutt <gnutt@nuttx.org>
|
||||
*
|
||||
* 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_ARM_SRC_LPC43XX_LP43_GPDMA_H
|
||||
#define __ARCH_ARM_SRC_LPC43XX_LP43_GPDMA_H
|
||||
|
||||
/****************************************************************************
|
||||
* Included Files
|
||||
****************************************************************************/
|
||||
|
||||
#include <nuttx/config.h>
|
||||
#include "chip/lpc43_gpdma.h"
|
||||
|
||||
#ifdef CONFIG_LPC43_GPDMA
|
||||
|
||||
/****************************************************************************
|
||||
* Pre-processor Definitions
|
||||
****************************************************************************/
|
||||
|
||||
/****************************************************************************
|
||||
* Public Types
|
||||
****************************************************************************/
|
||||
|
||||
#ifndef __ASSEMBLY__
|
||||
|
||||
typedef FAR void *DMA_HANDLE;
|
||||
typedef void (*dma_callback_t)(DMA_HANDLE handle, void *arg, int result);
|
||||
|
||||
/* The following is used for sampling DMA registers when CONFIG DEBUG_DMA is selected */
|
||||
|
||||
#ifdef CONFIG_DEBUG_DMA
|
||||
struct lpc43_dmaglobalregs_s
|
||||
{
|
||||
/* Global Registers */
|
||||
|
||||
uint32_t intst; /* DMA Interrupt Status Register */
|
||||
uint32_t inttcst; /* DMA Interrupt Terminal Count Request Status Register */
|
||||
uint32_t interrst; /* DMA Interrupt Error Status Register */
|
||||
uint32_t rawinttcst; /* DMA Raw Interrupt Terminal Count Status Register */
|
||||
uint32_t rawinterrst; /* DMA Raw Error Interrupt Status Register */
|
||||
uint32_t enbldchns; /* DMA Enabled Channel Register */
|
||||
uint32_t softbreq; /* DMA Software Burst Request Register */
|
||||
uint32_t softsreq; /* DMA Software Single Request Register */
|
||||
uint32_t softlbreq; /* DMA Software Last Burst Request Register */
|
||||
uint32_t softlsreq; /* DMA Software Last Single Request Register */
|
||||
uint32_t config; /* DMA Configuration Register */
|
||||
uint32_t sync; /* DMA Synchronization Register */
|
||||
};
|
||||
|
||||
struct lpc43_dmachanregs_s
|
||||
{
|
||||
/* Channel Registers */
|
||||
|
||||
uint32_t srcaddr; /* DMA Channel Source Address Register */
|
||||
uint32_t destaddr; /* DMA Channel Destination Address Register */
|
||||
uint32_t lli; /* DMA Channel Linked List Item Register */
|
||||
uint32_t control; /* DMA Channel Control Register */
|
||||
uint32_t config; /* DMA Channel Configuration Register */
|
||||
};
|
||||
|
||||
struct lpc43_dmaregs_s
|
||||
{
|
||||
/* Global Registers */
|
||||
|
||||
struct lpc43_dmaglobalregs_s gbl;
|
||||
|
||||
/* Channel Registers */
|
||||
|
||||
struct lpc43_dmachanregs_s ch;
|
||||
};
|
||||
#endif
|
||||
|
||||
/****************************************************************************
|
||||
* Public Data
|
||||
****************************************************************************/
|
||||
|
||||
#undef EXTERN
|
||||
#if defined(__cplusplus)
|
||||
#define EXTERN extern "C"
|
||||
extern "C" {
|
||||
#else
|
||||
#define EXTERN extern
|
||||
#endif
|
||||
|
||||
/****************************************************************************
|
||||
* Public Functions
|
||||
****************************************************************************/
|
||||
|
||||
/****************************************************************************
|
||||
* Name: lpc43_dmainitialize
|
||||
*
|
||||
* Description:
|
||||
* Initialize the GPDMA subsystem.
|
||||
*
|
||||
* Returned Value:
|
||||
* None
|
||||
*
|
||||
****************************************************************************/
|
||||
|
||||
EXTERN void lpc43_dmainitilaize(void);
|
||||
|
||||
/****************************************************************************
|
||||
* Name: lpc43_dmachannel
|
||||
*
|
||||
* Description:
|
||||
* Allocate a DMA channel. This function sets aside a DMA channel and
|
||||
* gives the caller exclusive access to the DMA channel.
|
||||
*
|
||||
* Returned Value:
|
||||
* One success, this function returns a non-NULL, void* DMA channel
|
||||
* handle. NULL is returned on any failure. This function can fail only
|
||||
* if no DMA channel is available.
|
||||
*
|
||||
****************************************************************************/
|
||||
|
||||
EXTERN DMA_HANDLE lpc43_dmachannel(void);
|
||||
|
||||
/****************************************************************************
|
||||
* Name: lpc43_dmafree
|
||||
*
|
||||
* Description:
|
||||
* Release a DMA channel. NOTE: The 'handle' used in this argument must
|
||||
* NEVER be used again until lpc43_dmachannel() is called again to re-gain
|
||||
* a valid handle.
|
||||
*
|
||||
* Returned Value:
|
||||
* None
|
||||
*
|
||||
****************************************************************************/
|
||||
|
||||
EXTERN void lpc43_dmafree(DMA_HANDLE handle);
|
||||
|
||||
/****************************************************************************
|
||||
* Name: lpc43_dmasetup
|
||||
*
|
||||
* Description:
|
||||
* Configure DMA for one transfer.
|
||||
*
|
||||
****************************************************************************/
|
||||
|
||||
EXTERN int lpc43_dmarxsetup(DMA_HANDLE handle,
|
||||
uint32_t control, uint32_t config,
|
||||
uint32_t srcaddr, uint32_t destaddr,
|
||||
size_t nbytes);
|
||||
|
||||
/****************************************************************************
|
||||
* Name: lpc43_dmastart
|
||||
*
|
||||
* Description:
|
||||
* Start the DMA transfer
|
||||
*
|
||||
****************************************************************************/
|
||||
|
||||
EXTERN int lpc43_dmastart(DMA_HANDLE handle, dma_callback_t callback, void *arg);
|
||||
|
||||
/****************************************************************************
|
||||
* Name: lpc43_dmastop
|
||||
*
|
||||
* Description:
|
||||
* Cancel the DMA. After lpc43_dmastop() is called, the DMA channel is
|
||||
* reset and lpc43_dmasetup() must be called before lpc43_dmastart() can be
|
||||
* called again
|
||||
*
|
||||
****************************************************************************/
|
||||
|
||||
EXTERN void lpc43_dmastop(DMA_HANDLE handle);
|
||||
|
||||
/****************************************************************************
|
||||
* Name: lpc43_dmasample
|
||||
*
|
||||
* Description:
|
||||
* Sample DMA register contents
|
||||
*
|
||||
****************************************************************************/
|
||||
|
||||
#ifdef CONFIG_DEBUG_DMA
|
||||
EXTERN void lpc43_dmasample(DMA_HANDLE handle, struct lpc43_dmaregs_s *regs);
|
||||
#else
|
||||
# define lpc43_dmasample(handle,regs)
|
||||
#endif
|
||||
|
||||
/****************************************************************************
|
||||
* Name: lpc43_dmadump
|
||||
*
|
||||
* Description:
|
||||
* Dump previously sampled DMA register contents
|
||||
*
|
||||
****************************************************************************/
|
||||
|
||||
#ifdef CONFIG_DEBUG_DMA
|
||||
EXTERN void lpc43_dmadump(DMA_HANDLE handle, const struct lpc43_dmaregs_s *regs,
|
||||
const char *msg);
|
||||
#else
|
||||
# define lpc43_dmadump(handle,regs,msg)
|
||||
#endif
|
||||
|
||||
#undef EXTERN
|
||||
#if defined(__cplusplus)
|
||||
}
|
||||
#endif
|
||||
|
||||
#endif /* __ASSEMBLY__ */
|
||||
#endif /* CONFIG_LPC43_GPDMA */
|
||||
#endif /* __ARCH_ARM_SRC_LPC43XX_LP43_GPDMA_H */
|
||||
|
|
@ -0,0 +1,567 @@
|
|||
/*******************************************************************************
|
||||
* arch/arm/src/lpc43xx/lpc43_i2c.c
|
||||
*
|
||||
* Copyright (C) 2012 Gregory Nutt. All rights reserved.
|
||||
* Author: Gregory Nutt <gnutt@nuttx.org>
|
||||
*
|
||||
* Ported from from the LPC17 version:
|
||||
*
|
||||
* Copyright (C) 2011 Li Zhuoyi. All rights reserved.
|
||||
* Author: Li Zhuoyi <lzyy.cn@gmail.com>
|
||||
* History: 0.1 2011-08-20 initial version
|
||||
*
|
||||
* Derived from arch/arm/src/lpc31xx/lpc31_i2c.c
|
||||
*
|
||||
* Author: David Hewson
|
||||
*
|
||||
* Copyright (C) 2010-2011 Gregory Nutt. All rights reserved.
|
||||
* Author: Gregory Nutt <gnutt@nuttx.org>
|
||||
*
|
||||
* 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 <stdbool.h>
|
||||
#include <stdlib.h>
|
||||
#include <string.h>
|
||||
#include <errno.h>
|
||||
#include <debug.h>
|
||||
|
||||
#include <nuttx/arch.h>
|
||||
#include <nuttx/i2c.h>
|
||||
|
||||
#include <arch/irq.h>
|
||||
#include <arch/board/board.h>
|
||||
|
||||
#include "wdog.h"
|
||||
#include "chip.h"
|
||||
#include "up_arch.h"
|
||||
#include "up_internal.h"
|
||||
#include "os_internal.h"
|
||||
|
||||
#include "lpc43_syscon.h"
|
||||
#include "lpc43_pinconn.h"
|
||||
#include "lpc43_i2c.h"
|
||||
|
||||
#if defined(CONFIG_LPC43_I2C0) || defined(CONFIG_LPC43_I2C1)
|
||||
|
||||
#ifndef GPIO_I2C1_SCL
|
||||
#define GPIO_I2C1_SCL GPIO_I2C1_SCL_1
|
||||
#define GPIO_I2C1_SDA GPIO_I2C1_SDA_1
|
||||
#endif
|
||||
#ifndef CONFIG_I2C0_FREQ
|
||||
#define CONFIG_I2C0_FREQ 100000
|
||||
#endif
|
||||
#ifndef CONFIG_I2C1_FREQ
|
||||
#define CONFIG_I2C1_FREQ 100000
|
||||
#endif
|
||||
#ifndef CONFIG_I2C2_FREQ
|
||||
#define CONFIG_I2C2_FREQ 100000
|
||||
#endif
|
||||
|
||||
/*******************************************************************************
|
||||
* Definitions
|
||||
*******************************************************************************/
|
||||
|
||||
/****************************************************************************
|
||||
* Pre-processor Definitions
|
||||
****************************************************************************/
|
||||
|
||||
#define I2C_TIMEOUT ((20 * CLK_TCK) / 1000) /* 20 mS */
|
||||
|
||||
/****************************************************************************
|
||||
* Private Data
|
||||
****************************************************************************/
|
||||
|
||||
struct lpc43_i2cdev_s
|
||||
{
|
||||
struct i2c_dev_s dev; /* Generic I2C device */
|
||||
struct i2c_msg_s msg; /* a single message for legacy read/write */
|
||||
unsigned int base; /* Base address of registers */
|
||||
uint16_t irqid; /* IRQ for this device */
|
||||
|
||||
sem_t mutex; /* Only one thread can access at a time */
|
||||
sem_t wait; /* Place to wait for state machine completion */
|
||||
volatile uint8_t state; /* State of state machine */
|
||||
WDOG_ID timeout; /* watchdog to timeout when bus hung */
|
||||
|
||||
uint16_t wrcnt; /* number of bytes sent to tx fifo */
|
||||
uint16_t rdcnt; /* number of bytes read from rx fifo */
|
||||
};
|
||||
|
||||
#ifdef CONFIG_LPC43_I2C0
|
||||
static struct lpc43_i2cdev_s g_i2c0dev;
|
||||
#endif
|
||||
#ifdef CONFIG_LPC43_I2C1
|
||||
static struct lpc43_i2cdev_s g_i2c1dev;
|
||||
#endif
|
||||
|
||||
/****************************************************************************
|
||||
* Private Functions
|
||||
****************************************************************************/
|
||||
|
||||
static int i2c_start(struct lpc43_i2cdev_s *priv);
|
||||
static void i2c_stop(struct lpc43_i2cdev_s *priv);
|
||||
static int i2c_interrupt(int irq, FAR void *context);
|
||||
static void i2c_timeout(int argc, uint32_t arg, ...);
|
||||
|
||||
/****************************************************************************
|
||||
* I2C device operations
|
||||
****************************************************************************/
|
||||
|
||||
static uint32_t i2c_setfrequency(FAR struct i2c_dev_s *dev,
|
||||
uint32_t frequency);
|
||||
static int i2c_setaddress(FAR struct i2c_dev_s *dev, int addr,
|
||||
int nbits);
|
||||
static int i2c_write(FAR struct i2c_dev_s *dev, const uint8_t *buffer,
|
||||
int buflen);
|
||||
static int i2c_read(FAR struct i2c_dev_s *dev, uint8_t *buffer,
|
||||
int buflen);
|
||||
static int i2c_transfer(FAR struct i2c_dev_s *dev,
|
||||
FAR struct i2c_msg_s *msgs, int count);
|
||||
|
||||
struct i2c_ops_s lpc43_i2c_ops =
|
||||
{
|
||||
.setfrequency = i2c_setfrequency,
|
||||
.setaddress = i2c_setaddress,
|
||||
.write = i2c_write,
|
||||
.read = i2c_read,
|
||||
#ifdef CONFIG_I2C_TRANSFER
|
||||
.transfer = i2c_transfer
|
||||
#endif
|
||||
};
|
||||
|
||||
/*******************************************************************************
|
||||
* Name: lpc43_i2c_setfrequency
|
||||
*
|
||||
* Description:
|
||||
* Set the frequence for the next transfer
|
||||
*
|
||||
*******************************************************************************/
|
||||
|
||||
static uint32_t i2c_setfrequency(FAR struct i2c_dev_s *dev, uint32_t frequency)
|
||||
{
|
||||
struct lpc43_i2cdev_s *priv = (struct lpc43_i2cdev_s *) dev;
|
||||
|
||||
if (frequency > 100000)
|
||||
{
|
||||
/* asymetric per 400Khz I2C spec */
|
||||
|
||||
putreg32(LPC43_CCLK / (83 + 47) * 47 / frequency, priv->base + LPC43_I2C_SCLH_OFFSET);
|
||||
putreg32(LPC43_CCLK / (83 + 47) * 83 / frequency, priv->base + LPC43_I2C_SCLL_OFFSET);
|
||||
}
|
||||
else
|
||||
{
|
||||
/* 50/50 mark space ratio */
|
||||
|
||||
putreg32(LPC43_CCLK / 100 * 50 / frequency, priv->base + LPC43_I2C_SCLH_OFFSET);
|
||||
putreg32(LPC43_CCLK / 100 * 50 / frequency, priv->base + LPC43_I2C_SCLL_OFFSET);
|
||||
}
|
||||
|
||||
/* FIXME: This function should return the actual selected frequency */
|
||||
|
||||
return frequency;
|
||||
}
|
||||
|
||||
/*******************************************************************************
|
||||
* Name: lpc43_i2c_setaddress
|
||||
*
|
||||
* Description:
|
||||
* Set the I2C slave address for a subsequent read/write
|
||||
*
|
||||
*******************************************************************************/
|
||||
|
||||
static int i2c_setaddress(FAR struct i2c_dev_s *dev, int addr, int nbits)
|
||||
{
|
||||
struct lpc43_i2cdev_s *priv = (struct lpc43_i2cdev_s *)dev;
|
||||
|
||||
DEBUGASSERT(dev != NULL);
|
||||
DEBUGASSERT(nbits == 7);
|
||||
|
||||
priv->msg.addr = addr << 1;
|
||||
priv->msg.flags = 0 ;
|
||||
|
||||
return OK;
|
||||
}
|
||||
|
||||
/*******************************************************************************
|
||||
* Name: lpc43_i2c_write
|
||||
*
|
||||
* Description:
|
||||
* Send a block of data on I2C using the previously selected I2C
|
||||
* frequency and slave address.
|
||||
*
|
||||
*******************************************************************************/
|
||||
|
||||
static int i2c_write(FAR struct i2c_dev_s *dev, const uint8_t *buffer,
|
||||
int buflen)
|
||||
{
|
||||
struct lpc43_i2cdev_s *priv = (struct lpc43_i2cdev_s *)dev;
|
||||
int ret;
|
||||
|
||||
DEBUGASSERT(dev != NULL);
|
||||
|
||||
priv->wrcnt = 0;
|
||||
priv->rdcnt = 0;
|
||||
priv->msg.addr &= ~0x01;
|
||||
priv->msg.buffer = (uint8_t*)buffer;
|
||||
priv->msg.length = buflen;
|
||||
|
||||
ret = i2c_start(priv);
|
||||
|
||||
return ret > 0 ? OK : -ETIMEDOUT;
|
||||
}
|
||||
|
||||
/*******************************************************************************
|
||||
* Name: lpc43_i2c_read
|
||||
*
|
||||
* Description:
|
||||
* Receive a block of data on I2C using the previously selected I2C
|
||||
* frequency and slave address.
|
||||
*
|
||||
*******************************************************************************/
|
||||
|
||||
static int i2c_read(FAR struct i2c_dev_s *dev, uint8_t *buffer, int buflen)
|
||||
{
|
||||
struct lpc43_i2cdev_s *priv = (struct lpc43_i2cdev_s *)dev;
|
||||
int ret;
|
||||
|
||||
DEBUGASSERT(dev != NULL);
|
||||
|
||||
priv->wrcnt=0;
|
||||
priv->rdcnt=0;
|
||||
priv->msg.addr |= 0x01;
|
||||
priv->msg.buffer = buffer;
|
||||
priv->msg.length = buflen;
|
||||
|
||||
ret = i2c_start(priv);
|
||||
|
||||
return ret >0 ? OK : -ETIMEDOUT;
|
||||
}
|
||||
|
||||
/*******************************************************************************
|
||||
* Name: i2c_start
|
||||
*
|
||||
* Description:
|
||||
* Perform a I2C transfer start
|
||||
*
|
||||
*******************************************************************************/
|
||||
|
||||
static int i2c_start(struct lpc43_i2cdev_s *priv)
|
||||
{
|
||||
int ret = -1;
|
||||
|
||||
sem_wait(&priv->mutex);
|
||||
|
||||
putreg32(I2C_CONCLR_STAC|I2C_CONCLR_SIC,priv->base+LPC43_I2C_CONCLR_OFFSET);
|
||||
putreg32(I2C_CONSET_STA,priv->base+LPC43_I2C_CONSET_OFFSET);
|
||||
|
||||
wd_start(priv->timeout, I2C_TIMEOUT, i2c_timeout, 1, (uint32_t)priv);
|
||||
sem_wait(&priv->wait);
|
||||
wd_cancel(priv->timeout);
|
||||
sem_post(&priv->mutex);
|
||||
|
||||
if (priv-> state == 0x18 || priv->state == 0x28)
|
||||
{
|
||||
ret = priv->wrcnt;
|
||||
}
|
||||
else if (priv-> state == 0x50 || priv->state == 0x58)
|
||||
{
|
||||
ret = priv->rdcnt;
|
||||
}
|
||||
|
||||
return ret;
|
||||
}
|
||||
|
||||
/*******************************************************************************
|
||||
* Name: i2c_stop
|
||||
*
|
||||
* Description:
|
||||
* Perform a I2C transfer stop
|
||||
*
|
||||
*******************************************************************************/
|
||||
|
||||
static void i2c_stop(struct lpc43_i2cdev_s *priv)
|
||||
{
|
||||
if (priv->state != 0x38)
|
||||
{
|
||||
putreg32(I2C_CONSET_STO|I2C_CONSET_AA,priv->base+LPC43_I2C_CONSET_OFFSET);
|
||||
}
|
||||
|
||||
sem_post(&priv->wait);
|
||||
}
|
||||
|
||||
/*******************************************************************************
|
||||
* Name: i2c_timeout
|
||||
*
|
||||
* Description:
|
||||
* Watchdog timer for timeout of I2C operation
|
||||
*
|
||||
*******************************************************************************/
|
||||
|
||||
static void i2c_timeout(int argc, uint32_t arg, ...)
|
||||
{
|
||||
struct lpc43_i2cdev_s *priv = (struct lpc43_i2cdev_s *)arg;
|
||||
|
||||
irqstate_t flags = irqsave();
|
||||
priv->state = 0xff;
|
||||
sem_post(&priv->wait);
|
||||
irqrestore(flags);
|
||||
}
|
||||
|
||||
/*******************************************************************************
|
||||
* Name: i2c_interrupt
|
||||
*
|
||||
* Description:
|
||||
* The I2C Interrupt Handler
|
||||
*
|
||||
*******************************************************************************/
|
||||
|
||||
static int i2c_interrupt(int irq, FAR void *context)
|
||||
{
|
||||
struct lpc43_i2cdev_s *priv;
|
||||
uint32_t state;
|
||||
|
||||
#ifdef CONFIG_LPC43_I2C0
|
||||
if (irq == LPC43_IRQ_I2C0)
|
||||
{
|
||||
priv = &g_i2c0dev;
|
||||
}
|
||||
else
|
||||
#endif
|
||||
#ifdef CONFIG_LPC43_I2C1
|
||||
if (irq == LPC43_IRQ_I2C1)
|
||||
{
|
||||
priv = &g_i2c1dev;
|
||||
}
|
||||
else
|
||||
#endif
|
||||
{
|
||||
PANIC(OSERR_INTERNAL);
|
||||
}
|
||||
|
||||
/* Reference UM10360 19.10.5 */
|
||||
|
||||
state = getreg32(priv->base+LPC43_I2C_STAT_OFFSET);
|
||||
putreg32(I2C_CONCLR_SIC, priv->base + LPC43_I2C_CONCLR_OFFSET);
|
||||
|
||||
priv->state = state;
|
||||
state &= 0xf8;
|
||||
switch (state)
|
||||
{
|
||||
case 0x00: /* Bus Error */
|
||||
case 0x20:
|
||||
case 0x30:
|
||||
case 0x38:
|
||||
case 0x48:
|
||||
i2c_stop(priv);
|
||||
break;
|
||||
|
||||
case 0x08: /* START */
|
||||
case 0x10: /* Repeated START */
|
||||
putreg32(priv->msg.addr, priv->base + LPC43_I2C_DAT_OFFSET);
|
||||
putreg32(I2C_CONCLR_STAC, priv->base + LPC43_I2C_CONCLR_OFFSET);
|
||||
break;
|
||||
|
||||
case 0x18:
|
||||
priv->wrcnt=0;
|
||||
putreg32(priv->msg.buffer[0], priv->base + LPC43_I2C_DAT_OFFSET);
|
||||
break;
|
||||
|
||||
case 0x28:
|
||||
priv->wrcnt++;
|
||||
if (priv->wrcnt < priv->msg.length)
|
||||
{
|
||||
putreg32(priv->msg.buffer[priv->wrcnt],priv->base+LPC43_I2C_DAT_OFFSET);
|
||||
}
|
||||
else
|
||||
{
|
||||
i2c_stop(priv);
|
||||
}
|
||||
break;
|
||||
|
||||
case 0x40:
|
||||
priv->rdcnt = -1;
|
||||
putreg32(I2C_CONSET_AA, priv->base + LPC43_I2C_CONSET_OFFSET);
|
||||
break;
|
||||
|
||||
case 0x50:
|
||||
priv->rdcnt++;
|
||||
if (priv->rdcnt < priv->msg.length)
|
||||
{
|
||||
priv->msg.buffer[priv->rdcnt]=getreg32(priv->base+LPC43_I2C_BUFR_OFFSET);
|
||||
}
|
||||
|
||||
if (priv->rdcnt >= priv->msg.length - 1)
|
||||
{
|
||||
putreg32(I2C_CONCLR_AAC|I2C_CONCLR_SIC,priv->base+LPC43_I2C_CONCLR_OFFSET);
|
||||
}
|
||||
break;
|
||||
|
||||
case 0x58:
|
||||
i2c_stop(priv);
|
||||
break;
|
||||
|
||||
default:
|
||||
i2c_stop(priv);
|
||||
break;
|
||||
}
|
||||
|
||||
return OK;
|
||||
}
|
||||
|
||||
/****************************************************************************
|
||||
* Public Functions
|
||||
****************************************************************************/
|
||||
|
||||
/*******************************************************************************
|
||||
* Name: up_i2cinitialize
|
||||
*
|
||||
* Description:
|
||||
* Initialise an I2C device
|
||||
*
|
||||
*******************************************************************************/
|
||||
|
||||
struct i2c_dev_s *up_i2cinitialize(int port)
|
||||
{
|
||||
struct lpc43_i2cdev_s *priv;
|
||||
|
||||
if (port>2)
|
||||
{
|
||||
dbg("lpc I2C Only support 0,1,2\n");
|
||||
return NULL;
|
||||
}
|
||||
|
||||
irqstate_t flags;
|
||||
uint32_t regval;
|
||||
|
||||
flags = irqsave();
|
||||
|
||||
#ifdef CONFIG_LPC43_I2C0
|
||||
if (port == 0)
|
||||
{
|
||||
priv = &g_i2c0dev;
|
||||
priv->base = LPC43_I2C0_BASE;
|
||||
priv->irqid = LPC43_IRQ_I2C0;
|
||||
|
||||
regval = getreg32(LPC43_SYSCON_PCONP);
|
||||
regval |= SYSCON_PCONP_PCI2C0;
|
||||
putreg32(regval, LPC43_SYSCON_PCONP);
|
||||
|
||||
regval = getreg32(LPC43_SYSCON_PCLKSEL0);
|
||||
regval &= ~SYSCON_PCLKSEL0_I2C0_MASK;
|
||||
regval |= (SYSCON_PCLKSEL_CCLK << SYSCON_PCLKSEL0_I2C0_SHIFT);
|
||||
putreg32(regval, LPC43_SYSCON_PCLKSEL0);
|
||||
|
||||
lpc43_configgpio(GPIO_I2C0_SCL);
|
||||
lpc43_configgpio(GPIO_I2C0_SDA);
|
||||
|
||||
putreg32(LPC43_CCLK/CONFIG_I2C0_FREQ/2, priv->base + LPC43_I2C_SCLH_OFFSET);
|
||||
putreg32(LPC43_CCLK/CONFIG_I2C0_FREQ/2, priv->base + LPC43_I2C_SCLL_OFFSET);
|
||||
}
|
||||
else
|
||||
#endif
|
||||
#ifdef CONFIG_LPC43_I2C1
|
||||
if (port == 1)
|
||||
{
|
||||
priv = &g_i2c1dev;
|
||||
priv->base = LPC43_I2C1_BASE;
|
||||
priv->irqid = LPC43_IRQ_I2C1;
|
||||
|
||||
regval = getreg32(LPC43_SYSCON_PCONP);
|
||||
regval |= SYSCON_PCONP_PCI2C1;
|
||||
putreg32(regval, LPC43_SYSCON_PCONP);
|
||||
|
||||
regval = getreg32(LPC43_SYSCON_PCLKSEL1);
|
||||
regval &= ~SYSCON_PCLKSEL1_I2C1_MASK;
|
||||
regval |= (SYSCON_PCLKSEL_CCLK << SYSCON_PCLKSEL1_I2C1_SHIFT);
|
||||
putreg32(regval, LPC43_SYSCON_PCLKSEL1);
|
||||
|
||||
lpc43_configgpio(GPIO_I2C1_SCL);
|
||||
lpc43_configgpio(GPIO_I2C1_SDA);
|
||||
|
||||
putreg32(LPC43_CCLK/CONFIG_I2C1_FREQ/2, priv->base + LPC43_I2C_SCLH_OFFSET);
|
||||
putreg32(LPC43_CCLK/CONFIG_I2C1_FREQ/2, priv->base + LPC43_I2C_SCLL_OFFSET);
|
||||
}
|
||||
else
|
||||
#endif
|
||||
{
|
||||
return NULL;
|
||||
}
|
||||
|
||||
putreg32(I2C_CONSET_I2EN,priv->base+LPC43_I2C_CONSET_OFFSET);
|
||||
|
||||
sem_init(&priv->mutex, 0, 1);
|
||||
sem_init(&priv->wait, 0, 0);
|
||||
|
||||
/* Allocate a watchdog timer */
|
||||
|
||||
priv->timeout = wd_create();
|
||||
DEBUGASSERT(priv->timeout != 0);
|
||||
|
||||
/* Attach Interrupt Handler */
|
||||
|
||||
irq_attach(priv->irqid, i2c_interrupt);
|
||||
|
||||
/* Enable Interrupt Handler */
|
||||
|
||||
up_enable_irq(priv->irqid);
|
||||
|
||||
/* Install our operations */
|
||||
|
||||
priv->dev.ops = &lpc43_i2c_ops;
|
||||
return &priv->dev;
|
||||
}
|
||||
|
||||
/*******************************************************************************
|
||||
* Name: up_i2cuninitalize
|
||||
*
|
||||
* Description:
|
||||
* Uninitialise an I2C device
|
||||
*
|
||||
*******************************************************************************/
|
||||
|
||||
int up_i2cuninitialize(FAR struct i2c_dev_s * dev)
|
||||
{
|
||||
struct lpc43_i2cdev_s *priv = (struct lpc43_i2cdev_s *) dev;
|
||||
|
||||
putreg32(I2C_CONCLRT_I2ENC,priv->base+LPC43_I2C_CONCLR_OFFSET);
|
||||
up_disable_irq(priv->irqid);
|
||||
irq_detach(priv->irqid);
|
||||
return OK;
|
||||
}
|
||||
|
||||
#endif
|
||||
|
|
@ -33,8 +33,8 @@
|
|||
*
|
||||
****************************************************************************/
|
||||
|
||||
#ifndef __ARCH_ARM_SRC_LPC43XX_LOWSETUP_H
|
||||
#define __ARCH_ARM_SRC_LPC43XX_LOWSETUP_H
|
||||
#ifndef __ARCH_ARM_SRC_LPC43XX_LPC43_LOWSETUP_H
|
||||
#define __ARCH_ARM_SRC_LPC43XX_LPC43_LOWSETUP_H
|
||||
|
||||
/****************************************************************************
|
||||
* Included Files
|
||||
|
|
@ -85,4 +85,4 @@ EXTERN void lpc43_lowsetup(void);
|
|||
#endif
|
||||
|
||||
#endif /* __ASSEMBLY__ */
|
||||
#endif /* __ARCH_ARM_SRC_LPC43XX_LOWSETUP_H */
|
||||
#endif /* __ARCH_ARM_SRC_LPC43XX_LPC43_LOWSETUP_H */
|
||||
|
|
|
|||
|
|
@ -0,0 +1,120 @@
|
|||
/****************************************************************************
|
||||
* arch/arm/src/lpc43/lpc43_clrpend.c
|
||||
* arch/arm/src/chip/lpc43_clrpend.c
|
||||
*
|
||||
* Copyright (C) 2012 Gregory Nutt. All rights reserved.
|
||||
* Author: Gregory Nutt <gnutt@nuttx.org>
|
||||
*
|
||||
* Redistribution and use in source and binary forms, with or without
|
||||
* modification, are permitted provided that the following conditions
|
||||
* are met:
|
||||
*
|
||||
* 1. Redistributions of source code must retain the above copyright
|
||||
* notice, this list of conditions and the following disclaimer.
|
||||
* 2. Redistributions in binary form must reproduce the above copyright
|
||||
* notice, this list of conditions and the following disclaimer in
|
||||
* the documentation and/or other materials provided with the
|
||||
* distribution.
|
||||
* 3. Neither the name NuttX nor the names of its contributors may be
|
||||
* used to endorse or promote products derived from this software
|
||||
* without specific prior written permission.
|
||||
*
|
||||
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
|
||||
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
|
||||
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
|
||||
* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
|
||||
* COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
|
||||
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
|
||||
* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
|
||||
* OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
|
||||
* AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
|
||||
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
|
||||
* ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
|
||||
* POSSIBILITY OF SUCH DAMAGE.
|
||||
*
|
||||
****************************************************************************/
|
||||
|
||||
/****************************************************************************
|
||||
* Included Files
|
||||
****************************************************************************/
|
||||
|
||||
#include <nuttx/config.h>
|
||||
|
||||
#include <arch/irq.h>
|
||||
|
||||
#include "nvic.h"
|
||||
#include "up_arch.h"
|
||||
|
||||
#include "chip.h"
|
||||
#include "lpc43_rgu.h"
|
||||
|
||||
/****************************************************************************
|
||||
* Definitions
|
||||
****************************************************************************/
|
||||
|
||||
/****************************************************************************
|
||||
* Public Data
|
||||
****************************************************************************/
|
||||
|
||||
/****************************************************************************
|
||||
* Private Data
|
||||
****************************************************************************/
|
||||
|
||||
/****************************************************************************
|
||||
* Private Functions
|
||||
****************************************************************************/
|
||||
|
||||
/****************************************************************************
|
||||
* Public Functions
|
||||
****************************************************************************/
|
||||
|
||||
/****************************************************************************
|
||||
* Name: lpc43_softreset
|
||||
*
|
||||
* Description:
|
||||
* Reset as many of the LPC43 peripherals as possible. This is necessary
|
||||
* because the LPC43 does not provide any way of performing a full system
|
||||
* reset under debugger control. So, if CONFIG_DEBUG is set (indicating
|
||||
* that a debugger is being used?), the the boot logic will call this
|
||||
* function on all restarts.
|
||||
*
|
||||
* Assumptions:
|
||||
* Since this function is called early in the boot sequence, it cannot
|
||||
* depend on anything such as initialization of .bss or .data. It can
|
||||
* only assume that it has a stack.
|
||||
*
|
||||
****************************************************************************/
|
||||
|
||||
void lpc43_softreset(void)
|
||||
{
|
||||
irqstate_t flags;
|
||||
|
||||
/* Disable interrupts */
|
||||
|
||||
flags = irqsave();
|
||||
|
||||
/* Reset all of the peripherals that we can (safely) */
|
||||
|
||||
putreg32((RGU_CTRL0_LCD_RST | RGU_CTRL0_USB0_RST |
|
||||
RGU_CTRL0_USB1_RST | RGU_CTRL0_DMA_RST |
|
||||
RGU_CTRL0_SDIO_RST | RGU_CTRL0_ETHERNET_RST |
|
||||
RGU_CTRL0_GPIO_RST), LPC43_RGU_CTRL0);
|
||||
putreg32((RGU_CTRL1_TIMER0_RST | RGU_CTRL1_TIMER1_RST |
|
||||
RGU_CTRL1_TIMER2_RST | RGU_CTRL1_TIMER3_RST |
|
||||
RGU_CTRL1_RITIMER_RST | RGU_CTRL1_SCT_RST |
|
||||
RGU_CTRL1_MCPWM_RST | RGU_CTRL1_QEI_RST |
|
||||
RGU_CTRL1_ADC0_RST | RGU_CTRL1_ADC1_RST |
|
||||
RGU_CTRL1_USART0_RST | RGU_CTRL1_UART1_RST |
|
||||
RGU_CTRL1_USART2_RST | RGU_CTRL1_USART3_RST |
|
||||
RGU_CTRL1_I2C0_RST | RGU_CTRL1_I2C1_RST |
|
||||
RGU_CTRL1_SSP0_RST | RGU_CTRL1_SSP1_RST |
|
||||
RGU_CTRL1_I2S_RST | RGU_CTRL1_CAN1_RST |
|
||||
RGU_CTRL1_CAN0_RST | RGU_CTRL1_M0APP_RST),
|
||||
LPC43_RGU_CTRL1);
|
||||
|
||||
/* Clear all pending interupts */
|
||||
|
||||
putreg32(0xffffffff, NVIC_IRQ0_31_CLRPEND);
|
||||
putreg32(0xffffffff, NVIC_IRQ32_63_CLRPEND);
|
||||
irqrestore(flags);
|
||||
}
|
||||
|
|
@ -0,0 +1,92 @@
|
|||
/****************************************************************************
|
||||
* arch/arm/src/lpc43xx/lpc43_rgu.h
|
||||
*
|
||||
* Copyright (C) 2012 Gregory Nutt. All rights reserved.
|
||||
* Author: Gregory Nutt <gnutt@nuttx.org>
|
||||
*
|
||||
* 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_ARM_SRC_LPC43XX_LPC43_RGU_H
|
||||
#define __ARCH_ARM_SRC_LPC43XX_LPC43_RGU_H
|
||||
|
||||
/****************************************************************************
|
||||
* Included Files
|
||||
****************************************************************************/
|
||||
|
||||
#include <nuttx/config.h>
|
||||
#include "chip/lpc43_rgu.h"
|
||||
|
||||
/****************************************************************************
|
||||
* Pre-processor Definitions
|
||||
****************************************************************************/
|
||||
|
||||
/****************************************************************************
|
||||
* Public Types
|
||||
****************************************************************************/
|
||||
|
||||
/****************************************************************************
|
||||
* Public Data
|
||||
****************************************************************************/
|
||||
|
||||
#ifndef __ASSEMBLY__
|
||||
|
||||
#undef EXTERN
|
||||
#if defined(__cplusplus)
|
||||
#define EXTERN extern "C"
|
||||
extern "C" {
|
||||
#else
|
||||
#define EXTERN extern
|
||||
#endif
|
||||
|
||||
/****************************************************************************
|
||||
* Public Functions
|
||||
****************************************************************************/
|
||||
|
||||
/****************************************************************************
|
||||
* Name: lpc43_softreset
|
||||
*
|
||||
* Description:
|
||||
* Reset as many of the LPC43 peripherals as possible. This is necessary
|
||||
* because the LPC43 does not provide any way of performing a full system
|
||||
* reset under debugger control. So, if CONFIG_DEBUG is set (indicating
|
||||
* that a debugger is being used?), the the boot logic will call this
|
||||
* function on all restarts.
|
||||
*
|
||||
****************************************************************************/
|
||||
|
||||
EXTERN void lpc43_softreset(void);
|
||||
|
||||
#undef EXTERN
|
||||
#if defined(__cplusplus)
|
||||
}
|
||||
#endif
|
||||
|
||||
#endif /* __ASSEMBLY__ */
|
||||
#endif /* __ARCH_ARM_SRC_LPC43XX_LPC43_RGU_H */
|
||||
File diff suppressed because it is too large
Load Diff
|
|
@ -41,7 +41,8 @@
|
|||
************************************************************************************/
|
||||
|
||||
#include <nuttx/config.h>
|
||||
#include <chip/lpc32_spi.h>
|
||||
#include <nuttx/spi.h>
|
||||
#include "chip/lpc32_spi.h"
|
||||
|
||||
#ifdef CONFIG_LPC43_SPI
|
||||
|
||||
|
|
|
|||
|
|
@ -41,7 +41,8 @@
|
|||
************************************************************************************/
|
||||
|
||||
#include <nuttx/config.h>
|
||||
#include <chip/lpc43_ssp.h>
|
||||
#include <nuttx/spi.h>
|
||||
#include "chip/lpc43_ssp.h"
|
||||
|
||||
#if defined(CONFIG_LPC43_SSP0) || defined(CONFIG_LPC43_SSP1)
|
||||
|
||||
|
|
|
|||
|
|
@ -50,7 +50,8 @@
|
|||
# include "nvic.h"
|
||||
#endif
|
||||
|
||||
#include "lpc43_clockconfig.h"
|
||||
#include "lpc43_rgu.h"
|
||||
#include "lpc43_cgu.h"
|
||||
#include "lpc43_lowputc.h"
|
||||
|
||||
/****************************************************************************
|
||||
|
|
@ -178,7 +179,20 @@ void __start(void)
|
|||
const uint32_t *src;
|
||||
uint32_t *dest;
|
||||
|
||||
/* Configure the uart so that we can get debug output as soon as possible */
|
||||
/* Reset as many of the LPC43 peripherals as possible. This is necessary
|
||||
* because the LPC43 does not provide any way of performing a full system
|
||||
* reset under debugger control. So, if CONFIG_DEBUG is set (indicating
|
||||
* that a debugger is being used?), the the boot logic will call this
|
||||
* function on all restarts.
|
||||
*/
|
||||
|
||||
#ifdef CONFIG_DEBUG
|
||||
lpc43_softreset();
|
||||
#endif
|
||||
|
||||
/* Configure the CGU clocking and the console uart so that we can get
|
||||
* debug output as soon as possible.
|
||||
*/
|
||||
|
||||
lpc43_clockconfig();
|
||||
lpc43_fpuconfig();
|
||||
|
|
|
|||
Loading…
Reference in New Issue