97b01c0b98
Stupidly, spi_gpio_cfg() didn't take a spi_dev* argument on F1, because it doesn't matter there. On F2, where we need to set an alternate function when configuring GPIOs for SPI, we need to know the dev. We can't add break backwards compatibility, so we need a new function. However, we've since added a bunch of foo_gpio_cfg() routines, and we don't want confusing asymmetry in the names. So a global style change is needed. (Fortunately, the new functions weren't part of a release, so it's no problem to change their names). Change all foo_gpio_cfg() routines to foo_config_gpios() (or foo_config_gpio(), if there's only one GPIO to configure). For backwards compatibility, make spi_gpio_cfg() on F1 an __always_inline call to spi_config_gpios(). Signed-off-by: Marti Bolivar <mbolivar@leaflabs.com>
85 lines
2.3 KiB
C
85 lines
2.3 KiB
C
/******************************************************************************
|
|
* 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 <libmaple/adc.h>
|
|
#include <libmaple/gpio.h>
|
|
|
|
/*
|
|
* 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);
|
|
}
|