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/******************************************************************************
* The MIT License
*
* Copyright (c) 2011,2012 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/include/series/timer.h
* @author Marti Bolivar <mbolivar@leaflabs.com>
* @brief STM32F2 timer support.
*/
#ifndef _LIBMAPLE_STM32F2_TIMER_H_
#define _LIBMAPLE_STM32F2_TIMER_H_
#include <libmaple/libmaple_types.h>
#include <libmaple/gpio.h> /* for gpio_af */
/*
* Register maps and base pointers
*/
/**
* @brief STM32F2 general purpose timer register map type
*
* Note that not all general purpose timers have all of these
* registers. Consult your chip's reference manual for the details.
*/
typedef struct timer_gen_reg_map {
__io uint32 CR1; /**< Control register 1 */
__io uint32 CR2; /**< Control register 2 */
__io uint32 SMCR; /**< Slave mode control register */
__io uint32 DIER; /**< DMA/Interrupt enable register */
__io uint32 SR; /**< Status register */
__io uint32 EGR; /**< Event generation register */
__io uint32 CCMR1; /**< Capture/compare mode register 1 */
__io uint32 CCMR2; /**< Capture/compare mode register 2 */
__io uint32 CCER; /**< Capture/compare enable register */
__io uint32 CNT; /**< Counter */
__io uint32 PSC; /**< Prescaler */
__io uint32 ARR; /**< Auto-reload register */
const uint32 RESERVED1; /**< Reserved */
__io uint32 CCR1; /**< Capture/compare register 1 */
__io uint32 CCR2; /**< Capture/compare register 2 */
__io uint32 CCR3; /**< Capture/compare register 3 */
__io uint32 CCR4; /**< Capture/compare register 4 */
const uint32 RESERVED2; /**< Reserved */
__io uint32 DCR; /**< DMA control register */
__io uint32 DMAR; /**< DMA address for full transfer */
__io uint32 OR; /**< Option register. */
} timer_gen_reg_map;
struct timer_adv_reg_map;
struct timer_bas_reg_map;
/** Timer 1 register map base pointer */
#define TIMER1_BASE ((struct timer_adv_reg_map*)0x40010000)
/** Timer 2 register map base pointer */
#define TIMER2_BASE ((struct timer_gen_reg_map*)0x40000000)
/** Timer 3 register map base pointer */
#define TIMER3_BASE ((struct timer_gen_reg_map*)0x40000400)
/** Timer 4 register map base pointer */
#define TIMER4_BASE ((struct timer_gen_reg_map*)0x40000800)
/** Timer 5 register map base pointer */
#define TIMER5_BASE ((struct timer_gen_reg_map*)0x40000C00)
/** Timer 6 register map base pointer */
#define TIMER6_BASE ((struct timer_bas_reg_map*)0x40001000)
/** Timer 7 register map base pointer */
#define TIMER7_BASE ((struct timer_bas_reg_map*)0x40001400)
/** Timer 8 register map base pointer */
#define TIMER8_BASE ((struct timer_adv_reg_map*)0x40010400)
/** Timer 9 register map base pointer */
#define TIMER9_BASE ((struct timer_gen_reg_map*)0x40014000)
/** Timer 10 register map base pointer */
#define TIMER10_BASE ((struct timer_gen_reg_map*)0x40014400)
/** Timer 11 register map base pointer */
#define TIMER11_BASE ((struct timer_gen_reg_map*)0x40014800)
/** Timer 12 register map base pointer */
#define TIMER12_BASE ((struct timer_gen_reg_map*)0x40001800)
/** Timer 13 register map base pointer */
#define TIMER13_BASE ((struct timer_gen_reg_map*)0x40001C00)
/** Timer 14 register map base pointer */
#define TIMER14_BASE ((struct timer_gen_reg_map*)0x40002000)
/*
* Register bit definitions
*/
/* TIM2 option register */
/** Timer 2 option register internal trigger 1 remap */
#define TIMER2_OR_ITR1_RMP (0x3 << 10)
/** Timer 2 OR internal trigger 1: TIM8_TRGOUT */
#define TIMER2_OR_ITR1_RMP_TIM8_TRGOUT (0x0 << 10)
/** Timer 2 OR internal trigger 1: Ethernet PTP trigger output */
#define TIMER2_OR_ITR1_RMP_PTP_TRGOUT (0x1 << 10)
/** Timer 2 OR internal trigger 1: USB OTG full speed start of frame */
#define TIMER2_OR_ITR1_RMP_OTG_FS_SOF (0x2 << 10)
/** Timer 2 OR internal trigger 1: USB OTG high speed start of frame */
#define TIMER2_OR_ITR1_RMP_OTG_HS_SOF (0x3 << 10)
/* TIM5 option register */
/**
* Timer 5 option register input 4 remap.
*
* These bits control whether TIM5_CH4 is connected to a GPIO or a
* clock. Connecting to a GPIO is the normal mode, useful for e.g. PWM
* generation or input pulse duration measurement. Connecting to a
* clock is useful for calibrating that clock.
*/
#define TIMER5_OR_TI4_RMP (0x3 << 6)
/**
* Timer 5 OR input 4: Timer 5 channel 4 connected to GPIO. */
#define TIMER5_OR_TI4_RMP_GPIO (0x0 << 6)
/**
* Timer 5 OR input 4: low speed internal clock (LSI) is connected to
* TIM5_CH4. */
#define TIMER5_OR_TI4_RMP_LSI (0x1 << 6)
/**
* Timer 5 OR input 4: low speed external clock (LSE) is connected to
* TIM5_CH4. */
#define TIMER5_OR_TI4_RMP_LSE (0x2 << 6)
/**
* Timer 5 OR input 4: real time clock (RTC) output is connected to
* TIM5_CH4. */
#define TIMER5_OR_TI4_RMP_RTC (0x3 << 6)
/*
* Device pointers
*/
struct timer_dev;
extern struct timer_dev *TIMER1;
extern struct timer_dev *TIMER2;
extern struct timer_dev *TIMER3;
extern struct timer_dev *TIMER4;
extern struct timer_dev *TIMER5;
extern struct timer_dev *TIMER6;
extern struct timer_dev *TIMER7;
extern struct timer_dev *TIMER8;
extern struct timer_dev *TIMER9;
extern struct timer_dev *TIMER10;
extern struct timer_dev *TIMER11;
extern struct timer_dev *TIMER12;
extern struct timer_dev *TIMER13;
extern struct timer_dev *TIMER14;
/*
* Routines
*/
gpio_af timer_get_af(struct timer_dev *dev);
#endif
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