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Gregory Nutt 2018-06-21 07:15:35 -06:00
parent c1518ecd26
commit a0c0d7f42b
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arch/arm/src/stm32f7/stm32_capture.c Normal file
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arch/arm/src/stm32f7/stm32_capture.h Normal file
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/************************************************************************************
* arch/arm/src/stm32/stm32_capture.h
*
* Copyright (C) 2015 Bouteville Pierre-Noel. All rights reserved.
* Author: Bouteville Pierre-Noel <pnb990@gmail.com>
*
* 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_STM32F7_STM32_CAPTURE_H
#define __ARCH_ARM_SRC_STM32F7_STM32_CAPTURE_H
/************************************************************************************
* Included Files
************************************************************************************/
#include <nuttx/config.h>
#include "chip.h"
#include <arch/board/board.h>
#include "chip/stm32_tim.h"
/************************************************************************************
* Pre-processor Definitions
************************************************************************************/
/* Helpers **************************************************************************/
#define STM32_CAP_SETCLOCK(d,clk_src,psc,max) ((d)->ops->setclock(d,clk_src,psc,max))
#define STM32_CAP_SETCHANNEL(d,ch,cfg) ((d)->ops->setchannel(d,ch,cfg))
#define STM32_CAP_GETCAPTURE(d,ch) ((d)->ops->getcapture(d,ch))
#define STM32_CAP_SETISR(d,hnd,arg) ((d)->ops->setisr(d,hnd,arg))
#define STM32_CAP_ENABLEINT(d,s,on) ((d)->ops->enableint(d,s,on))
#define STM32_CAP_ACKFLAGS(d,f) ((d)->ops->ackflags(d,f))
#define STM32_CAP_GETFLAGS(d) ((d)->ops->getflags(d))
/************************************************************************************
* Public Types
************************************************************************************/
#ifndef __ASSEMBLY__
#undef EXTERN
#if defined(__cplusplus)
#define EXTERN extern "C"
extern "C"
{
#else
#define EXTERN extern
#endif
/* Capture Device Structure */
struct stm32_cap_dev_s
{
struct stm32_cap_ops_s *ops;
};
/* Capture input EDGE sources */
typedef enum
{
/* Mapped */
STM32_CAP_MAPPED_MASK = (GTIM_CCMR1_CC1S_MASK),
STM32_CAP_MAPPED_TI1 = (GTIM_CCMR_CCS_CCIN1),
STM32_CAP_MAPPED_TI2 = (GTIM_CCMR_CCS_CCIN2),
/*TODO STM32_CAP_MAPPED_TRC = (GTIM_CCMR_CCS_CCINTRC), */
/* Event prescaler */
STM32_CAP_INPSC_MASK = (GTIM_CCMR1_IC1PSC_MASK),
STM32_CAP_INPSC_NO = (0<<GTIM_CCMR1_IC1PSC_SHIFT),
STM32_CAP_INPSC_2EVENTS = (1<<GTIM_CCMR1_IC1PSC_SHIFT),
STM32_CAP_INPSC_4EVENTS = (2<<GTIM_CCMR1_IC1PSC_SHIFT),
STM32_CAP_INPSC_8EVENTS = (3<<GTIM_CCMR1_IC1PSC_SHIFT),
/* Event prescaler */
STM32_CAP_FILTER_MASK = (GTIM_CCMR1_IC1F_MASK),
STM32_CAP_FILTER_NO = (0<<GTIM_CCMR1_IC1F_SHIFT),
/* Internal clock with N time to confirm event */
STM32_CAP_FILTER_INT_N2 = (1<<GTIM_CCMR1_IC1F_SHIFT),
STM32_CAP_FILTER_INT_N4 = (2<<GTIM_CCMR1_IC1F_SHIFT),
STM32_CAP_FILTER_INT_N8 = (3<<GTIM_CCMR1_IC1F_SHIFT),
/* DTS clock div by D with N time to confirm event */
STM32_CAP_FILTER_DTS_D2_N6 = (4<<GTIM_CCMR1_IC1F_SHIFT),
STM32_CAP_FILTER_DTS_D2_N8 = (5<<GTIM_CCMR1_IC1F_SHIFT),
STM32_CAP_FILTER_DTS_D4_N6 = (6<<GTIM_CCMR1_IC1F_SHIFT),
STM32_CAP_FILTER_DTS_D4_N8 = (7<<GTIM_CCMR1_IC1F_SHIFT),
STM32_CAP_FILTER_DTS_D8_N6 = (8<<GTIM_CCMR1_IC1F_SHIFT),
STM32_CAP_FILTER_DTS_D8_N8 = (9<<GTIM_CCMR1_IC1F_SHIFT),
STM32_CAP_FILTER_DTS_D16_N5 = (10<<GTIM_CCMR1_IC1F_SHIFT),
STM32_CAP_FILTER_DTS_D16_N6 = (11<<GTIM_CCMR1_IC1F_SHIFT),
STM32_CAP_FILTER_DTS_D16_N8 = (12<<GTIM_CCMR1_IC1F_SHIFT),
STM32_CAP_FILTER_DTS_D32_N5 = (13<<GTIM_CCMR1_IC1F_SHIFT),
STM32_CAP_FILTER_DTS_D32_N6 = (14<<GTIM_CCMR1_IC1F_SHIFT),
STM32_CAP_FILTER_DTS_D32_N8 = (15<<GTIM_CCMR1_IC1F_SHIFT),
/* EDGE */
STM32_CAP_EDGE_MASK = (3<<8),
STM32_CAP_EDGE_DISABLED = (0<<8),
STM32_CAP_EDGE_RISING = (1<<8),
STM32_CAP_EDGE_FALLING = (2<<8),
STM32_CAP_EDGE_BOTH = (3<<8),
} stm32_cap_ch_cfg_t;
/* Capture clock sources */
typedef enum
{
STM32_CAP_CLK_INT= 0,
STM32_CAP_CLK_EXT,
/* TODO: Add other clock */
} stm32_cap_clk_t;
/* Capture flags */
typedef enum
{
/* One of the following */
STM32_CAP_FLAG_IRQ_COUNTER = (GTIM_SR_UIF),
STM32_CAP_FLAG_IRQ_CH_1 = (GTIM_SR_CC1IF),
STM32_CAP_FLAG_IRQ_CH_2 = (GTIM_SR_CC2IF),
STM32_CAP_FLAG_IRQ_CH_3 = (GTIM_SR_CC3IF),
STM32_CAP_FLAG_IRQ_CH_4 = (GTIM_SR_CC4IF),
STM32_CAP_FLAG_OF_CH_1 = (GTIM_SR_CC1OF),
STM32_CAP_FLAG_OF_CH_2 = (GTIM_SR_CC2OF),
STM32_CAP_FLAG_OF_CH_3 = (GTIM_SR_CC3OF),
STM32_CAP_FLAG_OF_CH_4 = (GTIM_SR_CC4OF)
} stm32_cap_flags_t;
#define STM32_CAP_FLAG_IRQ_CH(ch) (GTIM_SR_CC1IF<<((ch)-1))
#define STM32_CAP_FLAG_OF_CH(ch) (GTIM_SR_CC1OF<<((ch)-1))
#define STM32_CAP_CHANNEL_COUNTER 0
/* Capture Operations */
struct stm32_cap_ops_s
{
int (*setclock)( FAR struct stm32_cap_dev_s *dev, stm32_cap_clk_t clk, uint32_t prescaler, uint32_t max);
int (*setchannel)(FAR struct stm32_cap_dev_s *dev, uint8_t channel, stm32_cap_ch_cfg_t cfg);
uint32_t (*getcapture)(FAR struct stm32_cap_dev_s *dev, uint8_t channel);
int (*setisr)(FAR struct stm32_cap_dev_s *dev, xcpt_t handler, void *arg);
void (*enableint)( FAR struct stm32_cap_dev_s *dev, stm32_cap_flags_t src, bool on );
void (*ackflags)( FAR struct stm32_cap_dev_s *dev, int flags);
stm32_cap_flags_t (*getflags)(FAR struct stm32_cap_dev_s *dev);
};
/************************************************************************************
* Public Functions
************************************************************************************/
/* Power-up timer and get its structure */
FAR struct stm32_cap_dev_s *stm32_cap_init(int timer);
/* Power-down timer, mark it as unused */
int stm32_cap_deinit(FAR struct stm32_cap_dev_s *dev);
#undef EXTERN
#if defined(__cplusplus)
}
#endif
#endif /* __ASSEMBLY__ */
#endif /* __ARCH_ARM_SRC_STM32F7_STM32_CAPTURE_H */