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More LPC43 files in various states of work

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git-svn-id: svn://svn.code.sf.net/p/nuttx/code/trunk@4909 42af7a65-404d-4744-a932-0658087f49c3
This commit is contained in:
patacongo 2012-07-05 14:58:16 +00:00
parent d3bd7367a6
commit a644488776
19 changed files with 3407 additions and 11 deletions
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2
arch/arm/src/lpc17xx/lpc17_adc.c
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@ -261,7 +261,7 @@ static int adc_interrupt(int irq, void *context)
****************************************************************************/ ****************************************************************************/
/**************************************************************************** /****************************************************************************
* Name: stm32_adcinitialize * Name: lpc17_adcinitialize
* *
* Description: * Description:
* Initialize the adc * Initialize the adc

2
arch/arm/src/lpc17xx/lpc17_internal.h
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@ -797,7 +797,7 @@ EXTERN void lpc17_dmadump(DMA_HANDLE handle, const struct lpc17_dmaregs_s *regs,
#endif #endif
/**************************************************************************** /****************************************************************************
* Name: stm32_adcinitialize * Name: lpc17_adcinitialize
* *
* Description: * Description:
* Initialize the adc * Initialize the adc

11
arch/arm/src/lpc43xx/Make.defs
View File

@ -59,7 +59,7 @@ endif
CHIP_ASRCS = CHIP_ASRCS =
CHIP_CSRCS = lpc43_clrpend.c lpc43_gpio.c lpc43_irq.c lpc43_lowputc.c CHIP_CSRCS = lpc43_clrpend.c lpc43_gpio.c lpc43_irq.c lpc43_lowputc.c
CHIP_CSRCS += lpc43_pinconfig.c lpc43_start.c lpc43_timerisr.c CHIP_CSRCS += lpc43_pinconfig.c lpc43_rgu.c lpc43_start.c lpc43_timerisr.c
ifneq ($(CONFIG_IDLE_CUSTOM),y) ifneq ($(CONFIG_IDLE_CUSTOM),y)
CHIP_CSRCS += lpc43_idle.c CHIP_CSRCS += lpc43_idle.c
@ -81,3 +81,12 @@ CHIP_CSRCS += lpc43_ssp.c
endif endif
endif endif
ifeq ($(CONFIG_LPC43_I2C0),y)
CHIP_CSRCS += lpc43_i2c.c
else
ifeq ($(CONFIG_LPC43_I2C1),y)
CHIP_CSRCS += lpc43_i2c.c
endif
endif

2
arch/arm/src/lpc43xx/chip/lpc43_rgu.h
View File

@ -624,7 +624,7 @@
/* Bits 27-31: Reserved */ /* Bits 27-31: Reserved */
/* Reset external status register 0 for CORE_RST */ /* Reset external status register 0 for CORE_RST */
#define RGU_EXTSTAT_CORE_EXTRESET (1 << 0) /* Bit 0: Reset activated by external reset from reset pin #define RGU_EXTSTAT_CORE_EXTRESET (1 << 0) /* Bit 0: Reset activated by external reset from reset pin */
/* Bits 1-3: Reserved */ /* Bits 1-3: Reserved */
#define RGU_EXTSTAT_CORE_BODRESET (1 << 4) /* Bit 4: Reset activated by BOD reset */ #define RGU_EXTSTAT_CORE_BODRESET (1 << 4) /* Bit 4: Reset activated by BOD reset */
#define RGU_EXTSTAT_CORE_WWDTRESET (1 << 5) /* Bit 5: Reset activated by WWDT time-out */ #define RGU_EXTSTAT_CORE_WWDTRESET (1 << 5) /* Bit 5: Reset activated by WWDT time-out */

284
arch/arm/src/lpc43xx/lpc43_adc.c Normal file
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@ -0,0 +1,284 @@
/************************************************************************************
* arch/arm/src/lpc43xx/lpc43_adc.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 2011-08-05 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/adc.h>
#include "up_internal.h"
#include "up_arch.h"
#include "chip.h"
#include "lpc43_internal.h"
#include "lpc43_syscon.h"
#include "lpc43_pinconn.h"
#include "lpc43_adc.h"
#if defined(CONFIG_LPC43_ADC)
#ifndef CONFIG_ADC0_MASK
#define CONFIG_ADC0_MASK 0x01
#endif
#ifndef CONFIG_ADC0_SPS
#define CONFIG_ADC0_SPS 1000
#endif
#ifndef CONFIG_ADC0_AVERAGE
#define CONFIG_ADC0_AVERAGE 200
#endif
/****************************************************************************
* Private Types
****************************************************************************/
struct up_dev_s
{
uint8_t mask;
uint32_t sps;
int irq;
int32_t buf[8];
uint8_t count[8];
};
/****************************************************************************
* Private Function Prototypes
****************************************************************************/
/* ADC methods */
static void adc_reset(FAR struct adc_dev_s *dev);
static int adc_setup(FAR struct adc_dev_s *dev);
static void adc_shutdown(FAR struct adc_dev_s *dev);
static void adc_rxint(FAR struct adc_dev_s *dev, bool enable);
static int adc_ioctl(FAR struct adc_dev_s *dev, int cmd, unsigned long arg);
static int adc_interrupt(int irq, void *context);
/****************************************************************************
* Private Data
****************************************************************************/
static const struct adc_ops_s g_adcops =
{
.ao_reset =adc_reset,
.ao_setup = adc_setup,
.ao_shutdown = adc_shutdown,
.ao_rxint = adc_rxint,
.ao_ioctl = adc_ioctl,
};
static struct up_dev_s g_adcpriv =
{
.sps = CONFIG_ADC0_SPS,
.mask = CONFIG_ADC0_MASK,
.irq = LPC43_IRQ_ADC,
};
static struct adc_dev_s g_adcdev =
{
.ad_ops = &g_adcops,
.ad_priv= &g_adcpriv,
};
/****************************************************************************
* Private Functions
****************************************************************************/
/* Reset the ADC device. Called early to initialize the hardware. This
* is called, before ao_setup() and on error conditions.
*/
static void adc_reset(FAR struct adc_dev_s *dev)
{
irqstate_t flags;
uint32_t regval;
FAR struct up_dev_s *priv = (FAR struct up_dev_s *)dev->ad_priv;
flags = irqsave();
regval = getreg32(LPC43_SYSCON_PCONP);
regval |= SYSCON_PCONP_PCADC;
putreg32(regval, LPC43_SYSCON_PCONP);
putreg32(ADC_CR_PDN,LPC43_ADC_CR);
regval = getreg32(LPC43_SYSCON_PCLKSEL0);
regval &= ~SYSCON_PCLKSEL0_ADC_MASK;
regval |= (SYSCON_PCLKSEL_CCLK8 << SYSCON_PCLKSEL0_ADC_SHIFT);
putreg32(regval, LPC43_SYSCON_PCLKSEL0);
uint32_t clkdiv=LPC43_CCLK/8/65/priv->sps;
clkdiv<<=8;
clkdiv&=0xff00;
putreg32(ADC_CR_PDN|ADC_CR_BURST|clkdiv|priv->mask,LPC43_ADC_CR);
if(priv->mask&0x01)
lpc43_configgpio(GPIO_AD0p0);
else if(priv->mask&0x02)
lpc43_configgpio(GPIO_AD0p1);
else if(priv->mask&0x04)
lpc43_configgpio(GPIO_AD0p2);
else if(priv->mask&0x08)
lpc43_configgpio(GPIO_AD0p3);
else if(priv->mask&0x10)
lpc43_configgpio(GPIO_AD0p4);
else if(priv->mask&0x20)
lpc43_configgpio(GPIO_AD0p5);
else if(priv->mask&0x40)
lpc43_configgpio(GPIO_AD0p6);
else if(priv->mask&0x80)
lpc43_configgpio(GPIO_AD0p7);
irqrestore(flags);
}
/* Configure the ADC. This method is called the first time that the ADC
* device is opened. This will occur when the port is first opened.
* This setup includes configuring and attaching ADC interrupts. Interrupts
* are all disabled upon return.
*/
static int adc_setup(FAR struct adc_dev_s *dev)
{
int i;
FAR struct up_dev_s *priv = (FAR struct up_dev_s *)dev->ad_priv;
int ret = irq_attach(priv->irq, adc_interrupt);
if (ret == OK)
{
for (i = 0; i < 8; i++)
{
priv->buf[i]=0;
priv->count[i]=0;
}
up_enable_irq(priv->irq);
}
return ret;
}
/* Disable the ADC. This method is called when the ADC device is closed.
* This method reverses the operation the setup method.
*/
static void adc_shutdown(FAR struct adc_dev_s *dev)
{
FAR struct up_dev_s *priv = (FAR struct up_dev_s *)dev->ad_priv;
up_disable_irq(priv->irq);
irq_detach(priv->irq);
}
/* Call to enable or disable RX interrupts */
static void adc_rxint(FAR struct adc_dev_s *dev, bool enable)
{
FAR struct up_dev_s *priv = (FAR struct up_dev_s *)dev->ad_priv;
if (enable)
putreg32(ADC_INTEN_GLOBAL, LPC43_ADC_INTEN);
else
putreg32(0x00, LPC43_ADC_INTEN);
}
/* All ioctl calls will be routed through this method */
static int adc_ioctl(FAR struct adc_dev_s *dev, int cmd, unsigned long arg)
{
dbg("Fix me:Not Implemented\n");
return 0;
}
static int adc_interrupt(int irq, void *context)
{
uint32_t regval;
FAR struct up_dev_s *priv = (FAR struct up_dev_s *)g_adcdev.ad_priv;
unsigned char ch;
int32_t value;
regval = getreg32(LPC43_ADC_GDR);
ch = (regval >> 24) & 0x07;
priv->buf[ch] += regval & 0xfff0;
priv->count[ch]++;
if (priv->count[ch] >= CONFIG_ADC0_AVERAGE)
{
value = priv->buf[ch] / priv->count[ch];
value <<= 15;
adc_receive(&g_adcdev,ch,value);
priv->buf[ch] = 0;
priv->count[ch] = 0;
}
return OK;
}
/****************************************************************************
* Public Functions
****************************************************************************/
/****************************************************************************
* Name: stm32_adcinitialize
*
* Description:
* Initialize the adc
*
* Returned Value:
* Valid can device structure reference on succcess; a NULL on failure
*
****************************************************************************/
FAR struct adc_dev_s *lpc43_adcinitialize(void)
{
return &g_adcdev;
}
#endif

95
arch/arm/src/lpc43xx/lpc43_adc.h Normal file
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@ -0,0 +1,95 @@
/****************************************************************************
* arch/arm/src/lpc43xx/lpc43_adc.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_ADC_H
#define __ARCH_ARM_SRC_LPC43XX_LPC43_ADC_H
/****************************************************************************
* Included Files
****************************************************************************/
#include <nuttx/config.h>
#include <nuttx/analog/adc.h>
#include "chip/lpc43_adc.h"
#ifdef CONFIG_LPC43_ADC
/****************************************************************************
* 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_adcinitialize
*
* Description:
* Initialize the adc
*
* Returned Value:
* Valid can device structure reference on succcess; a NULL on failure
*
****************************************************************************/
FAR struct adc_dev_s *lpc43_adcinitialize(void);
#undef EXTERN
#if defined(__cplusplus)
}
#endif
#endif /* __ASSEMBLY__ */
#endif /* CONFIG_LPC43_ADC */
#endif /* __ARCH_ARM_SRC_LPC43XX_LPC43_ADC_H */

0
arch/arm/src/lpc43xx/lpc43_clockconfig.h → arch/arm/src/lpc43xx/lpc43_cgu.h
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204
arch/arm/src/lpc43xx/lpc43_dac.c Normal file
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@ -0,0 +1,204 @@
/************************************************************************************
* arch/arm/src/lpc43xx/lpc43_dac.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 2011-08-05 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 */

95
arch/arm/src/lpc43xx/lpc43_dac.h Normal file
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@ -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 */

226
arch/arm/src/lpc43xx/lpc43_gpdma.c Normal file
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@ -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 */

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/****************************************************************************
* 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 */

567
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/*******************************************************************************
* 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

6
arch/arm/src/lpc43xx/lpc43_lowputc.h
View File

@ -33,8 +33,8 @@
* *
****************************************************************************/ ****************************************************************************/
#ifndef __ARCH_ARM_SRC_LPC43XX_LOWSETUP_H #ifndef __ARCH_ARM_SRC_LPC43XX_LPC43_LOWSETUP_H
#define __ARCH_ARM_SRC_LPC43XX_LOWSETUP_H #define __ARCH_ARM_SRC_LPC43XX_LPC43_LOWSETUP_H
/**************************************************************************** /****************************************************************************
* Included Files * Included Files
@ -85,4 +85,4 @@ EXTERN void lpc43_lowsetup(void);
#endif #endif
#endif /* __ASSEMBLY__ */ #endif /* __ASSEMBLY__ */
#endif /* __ARCH_ARM_SRC_LPC43XX_LOWSETUP_H */ #endif /* __ARCH_ARM_SRC_LPC43XX_LPC43_LOWSETUP_H */

120
arch/arm/src/lpc43xx/lpc43_rgu.c Normal file
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@ -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);
}

92
arch/arm/src/lpc43xx/lpc43_rgu.h Normal file
View File

@ -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 */

1452
arch/arm/src/lpc43xx/lpc43_serial.c Normal file
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File diff suppressed because it is too large Load Diff

3
arch/arm/src/lpc43xx/lpc43_spi.h
View File

@ -41,7 +41,8 @@
************************************************************************************/ ************************************************************************************/
#include <nuttx/config.h> #include <nuttx/config.h>
#include <chip/lpc32_spi.h> #include <nuttx/spi.h>
#include "chip/lpc32_spi.h"
#ifdef CONFIG_LPC43_SPI #ifdef CONFIG_LPC43_SPI

3
arch/arm/src/lpc43xx/lpc43_ssp.h
View File

@ -41,7 +41,8 @@
************************************************************************************/ ************************************************************************************/
#include <nuttx/config.h> #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) #if defined(CONFIG_LPC43_SSP0) || defined(CONFIG_LPC43_SSP1)

18
arch/arm/src/lpc43xx/lpc43_start.c
View File

@ -50,7 +50,8 @@
# include "nvic.h" # include "nvic.h"
#endif #endif
#include "lpc43_clockconfig.h" #include "lpc43_rgu.h"
#include "lpc43_cgu.h"
#include "lpc43_lowputc.h" #include "lpc43_lowputc.h"
/**************************************************************************** /****************************************************************************
@ -178,7 +179,20 @@ void __start(void)
const uint32_t *src; const uint32_t *src;
uint32_t *dest; 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_clockconfig();
lpc43_fpuconfig(); lpc43_fpuconfig();