Mirrors_Framework/nuttx
1
0
Fork 0
mirror of https://github.com/apache/nuttx.git synced 2026-06-07 17:33:08 +08:00
Code Issues Actions Packages Projects Releases Wiki Activity

arch/arm/src/samd2l2 and boards/arm/samd2l2/arduino-m0: Add support to SAMD2L ADC driver and board support to Arduino M0.

Browse Source
This commit is contained in:
Alan Carvalho de Assis
2019-12-15 17:36:59 -06:00
committed by Gregory Nutt
parent 871197b4ec
commit 787128930f
10 changed files with 965 additions and 1 deletions
Download Patch File Download Diff File Expand all files Collapse all files
arch/arm/src/samd2l2/Make.defs
+4
View File
@@ -91,6 +91,10 @@ ifeq ($(CONFIG_ARCH_IRQPRIO),y)
CHIP_CSRCS += sam_irqprio.c
endif
ifeq ($(CONFIG_SAMD2L2_ADC),y)
CHIP_CSRCS += sam_adc.c
endif
ifeq ($(CONFIG_SAMD2L2_DMAC),y)
CHIP_CSRCS += sam_dmac.c
endif
arch/arm/src/samd2l2/adc.h
+61
View File
@@ -0,0 +1,61 @@
/************************************************************************************
* arch/arm/src/samd2l2/adc.h
*
* Copyright (C) 2019 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_SAMD2L2_ADC_H
#define __ARCH_ARM_SRC_SAMD2L2_ADC_H
/****************************************************************************
* Pre-processor Definitions
****************************************************************************/
/* IOCTL definitions */
#define SAMD_ADC_IOCTL_START 0 /* start adc conversion */
#define SAMD_ADC_IOCTL_STOP 1 /* stop adc conversion */
#define SAMD_ADC_IOCTL_SET_PARAMS 2 /* set parameters when adc is stopped */
#define SAMD_ADC_IOCTL_GET_PARAMS 3 /* get parameters */
/****************************************************************************
* Public Types
****************************************************************************/
struct sam_adc_param_s
{
uint8_t samplen; /* sampling time length */
uint8_t prescaler; /* prescaler configuration */
uint8_t averaging; /* number of samples to be collected */
};
#endif /* __ARCH_ARM_SRC_SAMD2L2_ADC_H */
arch/arm/src/samd2l2/sam_adc.c
+621
View File
File diff suppressed because it is too large Load Diff
arch/arm/src/samd2l2/sam_adc.h
+17
View File
@@ -69,6 +69,23 @@ extern "C"
#define EXTERN extern
#endif
/****************************************************************************
* Name: sam_adcinitialize
*
* Description:
* Initialize the ADC. See sam_adc.c for more details.
*
* Input Parameters:
* genclk - Number of the Clock Generator to use.
*
* Returned Value:
* Valid ADC device structure reference on success; a NULL on failure
*
****************************************************************************/
struct adc_dev_s;
struct adc_dev_s *sam_adcinitialize(int genclk);
#undef EXTERN
#if defined(__cplusplus)
}
boards/arm/samd2l2/arduino-m0/include/board.h
+18
View File
@@ -470,6 +470,24 @@
#define BOARD_SERCOM5_FREQUENCY BOARD_GCLK0_FREQUENCY
/* ADC definitions **********************************************************/
#define BOARD_ADC_GCLKGEN 0
/* We are using PA3 as Analog Input */
#define PORT_AIN1 PORT_AIN1_1
#define BOARD_ADC_INPUT1 1
#define BOARD_ADC_NUM_CHANNELS 1
/* The negative input is the internal GND */
#define BOARD_ADC_NEG ADC_INPUTCTRL_MUXNEG_GND
/* The VREF is the INTVCC1 = 1/2 VDDANA */
#define BOARD_ADC_REF ADC_REFCTRL_REFSEL_INTVCC1
/* USB definitions **********************************************************/
/* This is the source clock generator for the GCLK_USB clock
boards/arm/samd2l2/arduino-m0/src/Makefile
+5 -1
View File
@@ -36,7 +36,7 @@
-include $(TOPDIR)/Make.defs
ASRCS =
CSRCS = sam_boot.c
CSRCS = sam_boot.c sam_bringup.c
ifeq ($(CONFIG_SAMD2L2_SERCOM0),y)
CSRCS += sam_spi.c
@@ -52,6 +52,10 @@ ifeq ($(CONFIG_ARCH_BUTTONS),y)
CSRCS += sam_buttons.c
endif
ifeq ($(CONFIG_SAMD2L2_ADC),y)
CSRCS += sam_adc.c
endif
ifeq ($(CONFIG_LIB_BOARDCTL),y)
CSRCS += sam_appinit.c
endif
boards/arm/samd2l2/arduino-m0/src/arduino_m0.h
+26
View File
@@ -97,6 +97,32 @@
* Public Functions
****************************************************************************/
/****************************************************************************
* Name: sam_bringup
*
* Description:
* Perform architecture-specific initialization
*
* CONFIG_BOARD_LATE_INITIALIZE=y :
* Called from board_late_initialize().
*
* CONFIG_BOARD_LATE_INITIALIZE=y && CONFIG_LIB_BOARDCTL=y :
* Called from the NSH library
*
****************************************************************************/
int sam_bringup(void);
/************************************************************************************
* Name: sam_adc_setup
*
* Description:
* Initialize ADC and register the ADC driver.
*
************************************************************************************/
int sam_adc_setup(void);
/****************************************************************************
* Name: sam_spidev_initialize
*
boards/arm/samd2l2/arduino-m0/src/sam_adc.c
+104
View File
@@ -0,0 +1,104 @@
/************************************************************************************
* boards/arm/samd2l2/arduino-m0/src/sam_adc.c
*
* Copyright (C) 2012, 2016 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 <errno.h>
#include <debug.h>
#include <nuttx/board.h>
#include <nuttx/analog/adc.h>
#include <arch/board/board.h>
#include "chip.h"
#include "sam_adc.h"
#include "arduino_m0.h"
#ifdef CONFIG_ADC
/************************************************************************************
* Public Functions
************************************************************************************/
/************************************************************************************
* Name: sam_adc_setup
*
* Description:
* Initialize ADC and register the ADC driver.
*
************************************************************************************/
int sam_adc_setup(void)
{
static bool initialized = false;
struct adc_dev_s *adc;
int ret;
/* Check if we have already initialized */
if (!initialized)
{
/* Call sam_adcinitialize() to get an instance of the ADC interface */
adc = sam_adcinitialize(0);
if (adc == NULL)
{
aerr("ERROR: Failed to get ADC interface\n");
return -ENODEV;
}
/* Register the ADC driver at "/dev/adc0" */
ret = adc_register("/dev/adc0", adc);
if (ret < 0)
{
aerr("ERROR: adc_register failed: %d\n", ret);
return ret;
}
/* Now we are initialized */
initialized = true;
}
return OK;
}
#endif /* CONFIG_ADC */
boards/arm/samd2l2/arduino-m0/src/sam_boot.c
+23
View File
@@ -90,3 +90,26 @@ void sam_boardinitialize(void)
board_autoled_initialize();
#endif
}
/****************************************************************************
* Name: board_late_initialize
*
* Description:
* If CONFIG_BOARD_LATE_INITIALIZE is selected, then an additional
* initialization call will be performed in the boot-up sequence to a
* function called board_late_initialize(). board_late_initialize() will be
* called immediately after up_intitialize() is called and just before the
* initial application is started. This additional initialization phase
* may be used, for example, to initialize board-specific device drivers.
*
****************************************************************************/
#ifdef CONFIG_BOARD_LATE_INITIALIZE
void board_late_initialize(void)
{
/* Perform board initialization */
(void)sam_bringup();
}
#endif /* CONFIG_BOARD_LATE_INITIALIZE */
boards/arm/samd2l2/arduino-m0/src/sam_bringup.c
+86
View File
@@ -0,0 +1,86 @@
/****************************************************************************
* boards/arm/samd2l2/arduino-m0/src/sam_bringup.c
*
* Copyright (C) 2019 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 <debug.h>
#include <nuttx/board.h>
#include "sam_config.h"
#include "arduino_m0.h"
/****************************************************************************
* Pre-processor Definitions
****************************************************************************/
/****************************************************************************
* Private Functions
****************************************************************************/
/****************************************************************************
* Public Functions
****************************************************************************/
/****************************************************************************
* Name: sam_bringup
*
* Description:
* Bring up board features
*
****************************************************************************/
int sam_bringup(void)
{
int ret = OK;
/* Configure the ADC driver */
#ifdef CONFIG_SAMD2L2_ADC
ret = sam_adc_setup();
if (ret < 0)
{
syslog(LOG_ERR, "Failed to initialize the ADC driver: %d\n", ret);
return ret;
}
#endif
return ret;
}