From 9daa30c70e3eaf4a95c42f6de055bb6797044c4e Mon Sep 17 00:00:00 2001 From: Marti Bolivar Date: Wed, 15 Oct 2014 14:51:06 +0800 Subject: Rename various "stm32f2" directories "stm32f2-f4". Preparatory patch for adding STM32F4 support. Signed-off-by: Marti Bolivar --- libmaple/stm32f2-f4/adc.c | 84 +++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 84 insertions(+) create mode 100644 libmaple/stm32f2-f4/adc.c (limited to 'libmaple/stm32f2-f4/adc.c') diff --git a/libmaple/stm32f2-f4/adc.c b/libmaple/stm32f2-f4/adc.c new file mode 100644 index 0000000..a400d7b --- /dev/null +++ b/libmaple/stm32f2-f4/adc.c @@ -0,0 +1,84 @@ +/****************************************************************************** + * The MIT License + * + * Copyright (c) 2012 LeafLabs, LLC. + * + * Permission is hereby granted, free of charge, to any person + * obtaining a copy of this software and associated documentation + * files (the "Software"), to deal in the Software without + * restriction, including without limitation the rights to use, copy, + * modify, merge, publish, distribute, sublicense, and/or sell copies + * of the Software, and to permit persons to whom the Software is + * furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice shall be + * included in all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, + * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF + * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND + * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS + * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN + * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN + * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE + * SOFTWARE. + *****************************************************************************/ + +/** + * @file libmaple/stm32f2/adc.c + * @brief STM32F2 ADC. + */ + +#include +#include + +/* + * Devices + */ + +static adc_dev adc1 = { + .regs = ADC1_BASE, + .clk_id = RCC_ADC1, +}; +/** ADC1 device. */ +const adc_dev *ADC1 = &adc1; + +static adc_dev adc2 = { + .regs = ADC2_BASE, + .clk_id = RCC_ADC2, +}; +/** ADC2 device. */ +const adc_dev *ADC2 = &adc2; + +static adc_dev adc3 = { + .regs = ADC3_BASE, + .clk_id = RCC_ADC3, +}; +/** ADC3 device. */ +const adc_dev *ADC3 = &adc3; + +/* + * Common routines + */ + +void adc_set_prescaler(adc_prescaler pre) { + uint32 ccr = ADC_COMMON_BASE->CCR; + ccr &= ~ADC_CCR_ADCPRE; + ccr |= (uint32)pre; + ADC_COMMON_BASE->CCR = ccr; +} + +void adc_foreach(void (*fn)(const adc_dev*)) { + fn(ADC1); + fn(ADC2); + fn(ADC3); +} + +void adc_config_gpio(const adc_dev *ignored, gpio_dev *gdev, uint8 bit) { + gpio_set_modef(gdev, bit, GPIO_MODE_ANALOG, GPIO_MODEF_PUPD_NONE); +} + +void adc_enable_single_swstart(const adc_dev *dev) { + adc_init(dev); + adc_enable(dev); +} -- cgit v1.2.3