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author | patacongo <patacongo@42af7a65-404d-4744-a932-0658087f49c3> | 2011-12-16 00:32:11 +0000 |
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committer | patacongo <patacongo@42af7a65-404d-4744-a932-0658087f49c3> | 2011-12-16 00:32:11 +0000 |
commit | df5aca04bdf127475b90bf6fdc246f402f039649 (patch) | |
tree | fa8d7ebc153e98273b925eb661c86da5c96e9519 /nuttx/configs/stm3210e-eval | |
parent | fdaf3f62925632d5c98d019511acd22934653b0c (diff) | |
download | px4-nuttx-df5aca04bdf127475b90bf6fdc246f402f039649.tar.gz px4-nuttx-df5aca04bdf127475b90bf6fdc246f402f039649.tar.bz2 px4-nuttx-df5aca04bdf127475b90bf6fdc246f402f039649.zip |
Updated STM32 ADC driver
git-svn-id: svn://svn.code.sf.net/p/nuttx/code/trunk@4189 42af7a65-404d-4744-a932-0658087f49c3
Diffstat (limited to 'nuttx/configs/stm3210e-eval')
-rw-r--r-- | nuttx/configs/stm3210e-eval/src/up_adc.c | 249 |
1 files changed, 139 insertions, 110 deletions
diff --git a/nuttx/configs/stm3210e-eval/src/up_adc.c b/nuttx/configs/stm3210e-eval/src/up_adc.c index c2a0d2cfe..92e21a8e5 100644 --- a/nuttx/configs/stm3210e-eval/src/up_adc.c +++ b/nuttx/configs/stm3210e-eval/src/up_adc.c @@ -1,111 +1,140 @@ -/************************************************************************************
- * configs/stm3210e-eval/src/up_adc.c
- * arch/arm/src/board/up_adc.c
- *
- * Copyright (C) 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 <debug.h>
-
-#include <nuttx/analog/adc.h>
-#include <arch/board/board.h>
-
-#include "chip.h"
-#include "up_arch.h"
-#include "stm3210e-internal.h"
-
-#ifdef CONFIG_ADC
-
-/************************************************************************************
- * Definitions
- ************************************************************************************/
-
-/* Configuration ************************************************************/
-/* Up to 3 ADC interfaces are supported */
-
-#if STM32_NADC < 3
-# undef CONFIG_STM32_ADC3
-#endif
-
-#if STM32_NADC < 2
-# undef CONFIG_STM32_ADC2
-#endif
-
-#if STM32_NADC < 1
-# undef CONFIG_STM32_ADC1
-#endif
-
-#if defined(CONFIG_STM32_ADC1) || defined(CONFIG_STM32_ADC2) || defined(CONFIG_STM32_ADC3)
-
-/************************************************************************************
- * Private Functions
- ************************************************************************************/
-
-/************************************************************************************
- * Public Functions
- ************************************************************************************/
-
-/************************************************************************************
- * Name: stm32_boardinitialize
- *
- * Description:
- * All STM32 architectures must provide the following entry point. This entry point
- * is called early in the intitialization -- after all memory has been configured
- * and mapped but before any devices have been initialized.
- *
- ************************************************************************************/
-
-void adc_devinit(void)
-{
- struct adc_dev_s *adc;
- int ret;
-
- /* Call stm32_adcinitialize() to get an instance of the ADC interface */
-#warning "Missing Logic"
-
- /* Register the ADC driver at "/dev/adc0" */
-
- ret = adc_register("/dev/adc0", adc);
- if (ret < 0)
- {
- adbg("adc_register failed: %d\n", ret);
- }
-}
-
-#endif /* CONFIG_STM32_ADC || CONFIG_STM32_ADC2 || CONFIG_STM32_ADC3 */
+/************************************************************************************ + * configs/stm3210e-eval/src/up_adc.c + * arch/arm/src/board/up_adc.c + * + * Copyright (C) 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 <debug.h> + +#include <nuttx/analog/adc.h> +#include <arch/board/board.h> + +#include "chip.h" +#include "up_arch.h" +#include "stm3210e-internal.h" + +#ifdef CONFIG_ADC + +/************************************************************************************ + * Definitions + ************************************************************************************/ + +/* Configuration ************************************************************/ +/* Up to 3 ADC interfaces are supported */ + +#if STM32_NADC < 3 +# undef CONFIG_STM32_ADC3 +#endif + +#if STM32_NADC < 2 +# undef CONFIG_STM32_ADC2 +#endif + +#if STM32_NADC < 1 +# undef CONFIG_STM32_ADC1 +#endif + +#if defined(CONFIG_STM32_ADC1) || defined(CONFIG_STM32_ADC2) || defined(CONFIG_STM32_ADC3) + +/* The number of ADC channels in the conversion list */ + +#define ADC_NCHANNELS 2 + +/************************************************************************************ + * Private Data + ************************************************************************************/ + +/* Identifying number of each ADC channel */ + +static const uint8_t g_chanlist[ADC_NCHANNELS] = {14, 10}; + +/* Configurations of pins used byte each ADC channels */ + +static const uint32_t g_pinlist[ADC_NCHANNELS] = {GPIO_ADC1_IN14 , GPIO_ADC1_IN10}; + +/************************************************************************************ + * Private Functions + ************************************************************************************/ + +/************************************************************************************ + * Public Functions + ************************************************************************************/ + +/************************************************************************************ + * Name: stm32_boardinitialize + * + * Description: + * All STM32 architectures must provide the following entry point. This entry point + * is called early in the intitialization -- after all memory has been configured + * and mapped but before any devices have been initialized. + * + ************************************************************************************/ + +int adc_devinit(void) +{ + struct adc_dev_s *adc; + int ret; + int i; + + avdbg("Entry\n"); + + /* Configure the pins as analog inputs for the selected channels */^M + + for(i = 0; i < ADC_NCHANNELS; i++) + { + stm32_configgpio(chanlist[i]); + } + + /* Call stm32_adcinitialize() to get an instance of the ADC interface */^M + + adc = stm32_adcinitialize(1, g_chanlist, ADC_NCHANNELS); + + /* Register the ADC driver at "/dev/adc0" */ + + ret = adc_register("/dev/adc0", adc); + if (ret < 0) + { + adbg("adc_register failed: %d\n", ret); + } + + return OK; +} + +#endif /* CONFIG_STM32_ADC || CONFIG_STM32_ADC2 || CONFIG_STM32_ADC3 */ #endif /* CONFIG_ADC */
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