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STM32 timer: Reorganize to conform better with the NuttX coding style

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This commit is contained in:
Gregory Nutt 2016-07-06 13:36:17 -06:00
parent d8286a7f47
commit 711f3318c5
2 changed files with 317 additions and 197 deletions
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504
arch/arm/src/stm32/stm32_tim.c
View File

@ -64,8 +64,9 @@
#include "stm32_tim.h"
/************************************************************************************
* Private Types
* Pre-processor Definitions
************************************************************************************/
/* Configuration ********************************************************************/
/* Timer devices may be used for different purposes. Such special purposes include:
*
@ -284,16 +285,218 @@
struct stm32_tim_priv_s
{
struct stm32_tim_ops_s *ops;
stm32_tim_mode_t mode;
uint32_t base; /* TIMn base address */
const struct stm32_tim_ops_s *ops;
stm32_tim_mode_t mode;
uint32_t base; /* TIMn base address */
};
/************************************************************************************
* Private Function prototypes
************************************************************************************/
/* Timer methods */
static int stm32_tim_setmode(FAR struct stm32_tim_dev_s *dev, stm32_tim_mode_t mode);
static int stm32_tim_setclock(FAR struct stm32_tim_dev_s *dev, uint32_t freq);
static void stm32_tim_setperiod(FAR struct stm32_tim_dev_s *dev,
uint32_t period);
static uint32_t stm32_tim_getcounter(FAR struct stm32_tim_dev_s *dev);
static int stm32_tim_setchannel(FAR struct stm32_tim_dev_s *dev, uint8_t channel,
stm32_tim_channel_t mode);
static int stm32_tim_setcompare(FAR struct stm32_tim_dev_s *dev, uint8_t channel,
uint32_t compare);
static int stm32_tim_getcapture(FAR struct stm32_tim_dev_s *dev, uint8_t channel);
static int stm32_tim_setisr(FAR struct stm32_tim_dev_s *dev,
int (*handler)(int irq, void *context),
int source);
static void stm32_tim_enableint(FAR struct stm32_tim_dev_s *dev, int source);
static void stm32_tim_disableint(FAR struct stm32_tim_dev_s *dev, int source);
static void stm32_tim_ackint(FAR struct stm32_tim_dev_s *dev, int source);
static int stm32_tim_checkint(FAR struct stm32_tim_dev_s *dev, int source);
/************************************************************************************
* Private Data
************************************************************************************/
static const struct stm32_tim_ops_s stm32_tim_ops =
{
.setmode = stm32_tim_setmode,
.setclock = stm32_tim_setclock,
.setperiod = stm32_tim_setperiod,
.getcounter = stm32_tim_getcounter,
.setchannel = stm32_tim_setchannel,
.setcompare = stm32_tim_setcompare,
.getcapture = stm32_tim_getcapture,
.setisr = stm32_tim_setisr,
.enableint = stm32_tim_enableint,
.disableint = stm32_tim_disableint,
.ackint = stm32_tim_ackint,
.checkint = stm32_tim_checkint,
};
#ifdef CONFIG_STM32_TIM1
struct stm32_tim_priv_s stm32_tim1_priv =
{
.ops = &stm32_tim_ops,
.mode = STM32_TIM_MODE_UNUSED,
.base = STM32_TIM1_BASE,
};
#endif
#ifdef CONFIG_STM32_TIM2
struct stm32_tim_priv_s stm32_tim2_priv =
{
.ops = &stm32_tim_ops,
.mode = STM32_TIM_MODE_UNUSED,
.base = STM32_TIM2_BASE,
};
#endif
#ifdef CONFIG_STM32_TIM3
struct stm32_tim_priv_s stm32_tim3_priv =
{
.ops = &stm32_tim_ops,
.mode = STM32_TIM_MODE_UNUSED,
.base = STM32_TIM3_BASE,
};
#endif
#ifdef CONFIG_STM32_TIM4
struct stm32_tim_priv_s stm32_tim4_priv =
{
.ops = &stm32_tim_ops,
.mode = STM32_TIM_MODE_UNUSED,
.base = STM32_TIM4_BASE,
};
#endif
#ifdef CONFIG_STM32_TIM5
struct stm32_tim_priv_s stm32_tim5_priv =
{
.ops = &stm32_tim_ops,
.mode = STM32_TIM_MODE_UNUSED,
.base = STM32_TIM5_BASE,
};
#endif
#ifdef CONFIG_STM32_TIM6
struct stm32_tim_priv_s stm32_tim6_priv =
{
.ops = &stm32_tim_ops,
.mode = STM32_TIM_MODE_UNUSED,
.base = STM32_TIM6_BASE,
};
#endif
#ifdef CONFIG_STM32_TIM7
struct stm32_tim_priv_s stm32_tim7_priv =
{
.ops = &stm32_tim_ops,
.mode = STM32_TIM_MODE_UNUSED,
.base = STM32_TIM7_BASE,
};
#endif
#ifdef CONFIG_STM32_TIM8
struct stm32_tim_priv_s stm32_tim8_priv =
{
.ops = &stm32_tim_ops,
.mode = STM32_TIM_MODE_UNUSED,
.base = STM32_TIM8_BASE,
};
#endif
#ifdef CONFIG_STM32_TIM9
struct stm32_tim_priv_s stm32_tim9_priv =
{
.ops = &stm32_tim_ops,
.mode = STM32_TIM_MODE_UNUSED,
.base = STM32_TIM9_BASE,
};
#endif
#ifdef CONFIG_STM32_TIM10
struct stm32_tim_priv_s stm32_tim10_priv =
{
.ops = &stm32_tim_ops,
.mode = STM32_TIM_MODE_UNUSED,
.base = STM32_TIM10_BASE,
};
#endif
#ifdef CONFIG_STM32_TIM11
struct stm32_tim_priv_s stm32_tim11_priv =
{
.ops = &stm32_tim_ops,
.mode = STM32_TIM_MODE_UNUSED,
.base = STM32_TIM11_BASE,
};
#endif
#ifdef CONFIG_STM32_TIM12
struct stm32_tim_priv_s stm32_tim12_priv =
{
.ops = &stm32_tim_ops,
.mode = STM32_TIM_MODE_UNUSED,
.base = STM32_TIM12_BASE,
};
#endif
#ifdef CONFIG_STM32_TIM13
struct stm32_tim_priv_s stm32_tim13_priv =
{
.ops = &stm32_tim_ops,
.mode = STM32_TIM_MODE_UNUSED,
.base = STM32_TIM13_BASE,
};
#endif
#ifdef CONFIG_STM32_TIM14
struct stm32_tim_priv_s stm32_tim14_priv =
{
.ops = &stm32_tim_ops,
.mode = STM32_TIM_MODE_UNUSED,
.base = STM32_TIM14_BASE,
};
#endif
#ifdef CONFIG_STM32_TIM15
struct stm32_tim_priv_s stm32_tim15_priv =
{
.ops = &stm32_tim_ops,
.mode = STM32_TIM_MODE_UNUSED,
.base = STM32_TIM15_BASE,
};
#endif
#ifdef CONFIG_STM32_TIM16
struct stm32_tim_priv_s stm32_tim16_priv =
{
.ops = &stm32_tim_ops,
.mode = STM32_TIM_MODE_UNUSED,
.base = STM32_TIM16_BASE,
};
#endif
#ifdef CONFIG_STM32_TIM17
struct stm32_tim_priv_s stm32_tim17_priv =
{
.ops = &stm32_tim_ops,
.mode = STM32_TIM_MODE_UNUSED,
.base = STM32_TIM17_BASE,
};
#endif
/************************************************************************************
* Private Functions
************************************************************************************/
/* Get a 16-bit register value by offset */
/************************************************************************************
* Name: stm32_getreg16
*
* Description:
* Get a 16-bit register value by offset
*
************************************************************************************/
static inline uint16_t stm32_getreg16(FAR struct stm32_tim_dev_s *dev,
uint8_t offset)
@ -301,7 +504,13 @@ static inline uint16_t stm32_getreg16(FAR struct stm32_tim_dev_s *dev,
return getreg16(((struct stm32_tim_priv_s *)dev)->base + offset);
}
/* Put a 16-bit register value by offset */
/************************************************************************************
* Name: stm32_putreg16
*
* Description:
* Put a 16-bit register value by offset
*
************************************************************************************/
static inline void stm32_putreg16(FAR struct stm32_tim_dev_s *dev, uint8_t offset,
uint16_t value)
@ -309,7 +518,13 @@ static inline void stm32_putreg16(FAR struct stm32_tim_dev_s *dev, uint8_t offse
putreg16(value, ((struct stm32_tim_priv_s *)dev)->base + offset);
}
/* Modify a 16-bit register value by offset */
/************************************************************************************
* Name: stm32_modifyreg16
*
* Description:
* Modify a 16-bit register value by offset
*
************************************************************************************/
static inline void stm32_modifyreg16(FAR struct stm32_tim_dev_s *dev,
uint8_t offset, uint16_t clearbits,
@ -318,9 +533,14 @@ static inline void stm32_modifyreg16(FAR struct stm32_tim_dev_s *dev,
modifyreg16(((struct stm32_tim_priv_s *)dev)->base + offset, clearbits, setbits);
}
/* Get a 32-bit register value by offset. This applies only for the STM32 F4
* 32-bit registers (CNT, ARR, CRR1-4) in the 32-bit timers TIM2-5.
*/
/************************************************************************************
* Name: stm32_getreg32
*
* Description:
* Get a 32-bit register value by offset. This applies only for the STM32 F4
* 32-bit registers (CNT, ARR, CRR1-4) in the 32-bit timers TIM2-5.
*
************************************************************************************/
static inline uint32_t stm32_getreg32(FAR struct stm32_tim_dev_s *dev,
uint8_t offset)
@ -328,9 +548,14 @@ static inline uint32_t stm32_getreg32(FAR struct stm32_tim_dev_s *dev,
return getreg32(((struct stm32_tim_priv_s *)dev)->base + offset);
}
/* Put a 32-bit register value by offset. This applies only for the STM32 F4
* 32-bit registers (CNT, ARR, CRR1-4) in the 32-bit timers TIM2-5.
*/
/************************************************************************************
* Name: stm32_putreg32
*
* Description:
* Put a 32-bit register value by offset. This applies only for the STM32 F4
* 32-bit registers (CNT, ARR, CRR1-4) in the 32-bit timers TIM2-5.
*
************************************************************************************/
static inline void stm32_putreg32(FAR struct stm32_tim_dev_s *dev, uint8_t offset,
uint32_t value)
@ -338,6 +563,10 @@ static inline void stm32_putreg32(FAR struct stm32_tim_dev_s *dev, uint8_t offse
putreg32(value, ((struct stm32_tim_priv_s *)dev)->base + offset);
}
/************************************************************************************
* Name: stm32_tim_reload_counter
************************************************************************************/
static void stm32_tim_reload_counter(FAR struct stm32_tim_dev_s *dev)
{
uint16_t val = stm32_getreg16(dev, STM32_BTIM_EGR_OFFSET);
@ -345,6 +574,10 @@ static void stm32_tim_reload_counter(FAR struct stm32_tim_dev_s *dev)
stm32_putreg16(dev, STM32_BTIM_EGR_OFFSET, val);
}
/************************************************************************************
* Name: stm32_tim_enable
************************************************************************************/
static void stm32_tim_enable(FAR struct stm32_tim_dev_s *dev)
{
uint16_t val = stm32_getreg16(dev, STM32_BTIM_CR1_OFFSET);
@ -353,6 +586,10 @@ static void stm32_tim_enable(FAR struct stm32_tim_dev_s *dev)
stm32_putreg16(dev, STM32_BTIM_CR1_OFFSET, val);
}
/************************************************************************************
* Name: stm32_tim_disable
************************************************************************************/
static void stm32_tim_disable(FAR struct stm32_tim_dev_s *dev)
{
uint16_t val = stm32_getreg16(dev, STM32_BTIM_CR1_OFFSET);
@ -360,7 +597,13 @@ static void stm32_tim_disable(FAR struct stm32_tim_dev_s *dev)
stm32_putreg16(dev, STM32_BTIM_CR1_OFFSET, val);
}
/* Reset timer into system default state, but do not affect output/input pins */
/************************************************************************************
* Name: stm32_tim_reset
*
* Description:
* Reset timer into system default state, but do not affect output/input pins
*
************************************************************************************/
static void stm32_tim_reset(FAR struct stm32_tim_dev_s *dev)
{
@ -368,6 +611,10 @@ static void stm32_tim_reset(FAR struct stm32_tim_dev_s *dev)
stm32_tim_disable(dev);
}
/************************************************************************************
* Name: stm32_tim_gpioconfig
************************************************************************************/
#if defined(HAVE_TIM1_GPIOCONFIG)||defined(HAVE_TIM2_GPIOCONFIG)||\
defined(HAVE_TIM3_GPIOCONFIG)||defined(HAVE_TIM4_GPIOCONFIG)||\
defined(HAVE_TIM5_GPIOCONFIG)||defined(HAVE_TIM8_GPIOCONFIG)
@ -387,7 +634,7 @@ static void stm32_tim_gpioconfig(uint32_t cfg, stm32_tim_channel_t mode)
#endif
/************************************************************************************
* Basic Functions
* Name: stm32_tim_setclock
************************************************************************************/
static int stm32_tim_setclock(FAR struct stm32_tim_dev_s *dev, uint32_t freq)
@ -531,6 +778,10 @@ static int stm32_tim_setclock(FAR struct stm32_tim_dev_s *dev, uint32_t freq)
return prescaler;
}
/************************************************************************************
* Name: stm32_tim_setperiod
************************************************************************************/
static void stm32_tim_setperiod(FAR struct stm32_tim_dev_s *dev,
uint32_t period)
{
@ -538,12 +789,20 @@ static void stm32_tim_setperiod(FAR struct stm32_tim_dev_s *dev,
stm32_putreg32(dev, STM32_BTIM_ARR_OFFSET, period);
}
/************************************************************************************
* Name: stm32_tim_getcounter
************************************************************************************/
static uint32_t stm32_tim_getcounter(FAR struct stm32_tim_dev_s *dev)
{
DEBUGASSERT(dev != NULL);
return stm32_getreg32(dev, STM32_BTIM_CNT_OFFSET);
}
/************************************************************************************
* Name: stm32_tim_setisr
************************************************************************************/
static int stm32_tim_setisr(FAR struct stm32_tim_dev_s *dev,
int (*handler)(int irq, void *context),
int source)
@ -668,23 +927,39 @@ static int stm32_tim_setisr(FAR struct stm32_tim_dev_s *dev,
return OK;
}
/************************************************************************************
* Name: stm32_tim_enableint
************************************************************************************/
static void stm32_tim_enableint(FAR struct stm32_tim_dev_s *dev, int source)
{
DEBUGASSERT(dev != NULL);
stm32_modifyreg16(dev, STM32_BTIM_DIER_OFFSET, 0, ATIM_DIER_UIE);
}
/************************************************************************************
* Name: stm32_tim_disableint
************************************************************************************/
static void stm32_tim_disableint(FAR struct stm32_tim_dev_s *dev, int source)
{
DEBUGASSERT(dev != NULL);
stm32_modifyreg16(dev, STM32_BTIM_DIER_OFFSET, ATIM_DIER_UIE, 0);
}
/************************************************************************************
* Name: stm32_tim_ackint
************************************************************************************/
static void stm32_tim_ackint(FAR struct stm32_tim_dev_s *dev, int source)
{
stm32_putreg16(dev, STM32_BTIM_SR_OFFSET, ~ATIM_SR_UIF);
}
/************************************************************************************
* Name: stm32_tim_checkint
************************************************************************************/
static int stm32_tim_checkint(FAR struct stm32_tim_dev_s *dev, int source)
{
uint16_t regval = stm32_getreg16(dev, STM32_BTIM_SR_OFFSET);
@ -692,7 +967,7 @@ static int stm32_tim_checkint(FAR struct stm32_tim_dev_s *dev, int source)
}
/************************************************************************************
* General Functions
* Name: stm32_tim_setmode
************************************************************************************/
static int stm32_tim_setmode(FAR struct stm32_tim_dev_s *dev, stm32_tim_mode_t mode)
@ -761,6 +1036,10 @@ static int stm32_tim_setmode(FAR struct stm32_tim_dev_s *dev, stm32_tim_mode_t m
return OK;
}
/************************************************************************************
* Name: stm32_tim_setchannel
************************************************************************************/
static int stm32_tim_setchannel(FAR struct stm32_tim_dev_s *dev, uint8_t channel,
stm32_tim_channel_t mode)
{
@ -1280,6 +1559,10 @@ static int stm32_tim_setchannel(FAR struct stm32_tim_dev_s *dev, uint8_t channel
return OK;
}
/************************************************************************************
* Name: stm32_tim_setcompare
************************************************************************************/
static int stm32_tim_setcompare(FAR struct stm32_tim_dev_s *dev, uint8_t channel,
uint32_t compare)
{
@ -1305,6 +1588,10 @@ static int stm32_tim_setcompare(FAR struct stm32_tim_dev_s *dev, uint8_t channel
return OK;
}
/************************************************************************************
* Name: stm32_tim_getcapture
************************************************************************************/
static int stm32_tim_getcapture(FAR struct stm32_tim_dev_s *dev, uint8_t channel)
{
DEBUGASSERT(dev != NULL);
@ -1325,185 +1612,11 @@ static int stm32_tim_getcapture(FAR struct stm32_tim_dev_s *dev, uint8_t channel
}
/************************************************************************************
* Advanced Functions
* Pubic Functions
************************************************************************************/
/* TODO: Advanced functions for the STM32_ATIM */
/************************************************************************************
* Device Structures, Instantiation
************************************************************************************/
struct stm32_tim_ops_s stm32_tim_ops =
{
.setmode = stm32_tim_setmode,
.setclock = stm32_tim_setclock,
.setperiod = stm32_tim_setperiod,
.getcounter = stm32_tim_getcounter,
.setchannel = stm32_tim_setchannel,
.setcompare = stm32_tim_setcompare,
.getcapture = stm32_tim_getcapture,
.setisr = stm32_tim_setisr,
.enableint = stm32_tim_enableint,
.disableint = stm32_tim_disableint,
.ackint = stm32_tim_ackint,
.checkint = stm32_tim_checkint,
};
#ifdef CONFIG_STM32_TIM1
struct stm32_tim_priv_s stm32_tim1_priv =
{
.ops = &stm32_tim_ops,
.mode = STM32_TIM_MODE_UNUSED,
.base = STM32_TIM1_BASE,
};
#endif
#ifdef CONFIG_STM32_TIM2
struct stm32_tim_priv_s stm32_tim2_priv =
{
.ops = &stm32_tim_ops,
.mode = STM32_TIM_MODE_UNUSED,
.base = STM32_TIM2_BASE,
};
#endif
#ifdef CONFIG_STM32_TIM3
struct stm32_tim_priv_s stm32_tim3_priv =
{
.ops = &stm32_tim_ops,
.mode = STM32_TIM_MODE_UNUSED,
.base = STM32_TIM3_BASE,
};
#endif
#ifdef CONFIG_STM32_TIM4
struct stm32_tim_priv_s stm32_tim4_priv =
{
.ops = &stm32_tim_ops,
.mode = STM32_TIM_MODE_UNUSED,
.base = STM32_TIM4_BASE,
};
#endif
#ifdef CONFIG_STM32_TIM5
struct stm32_tim_priv_s stm32_tim5_priv =
{
.ops = &stm32_tim_ops,
.mode = STM32_TIM_MODE_UNUSED,
.base = STM32_TIM5_BASE,
};
#endif
#ifdef CONFIG_STM32_TIM6
struct stm32_tim_priv_s stm32_tim6_priv =
{
.ops = &stm32_tim_ops,
.mode = STM32_TIM_MODE_UNUSED,
.base = STM32_TIM6_BASE,
};
#endif
#ifdef CONFIG_STM32_TIM7
struct stm32_tim_priv_s stm32_tim7_priv =
{
.ops = &stm32_tim_ops,
.mode = STM32_TIM_MODE_UNUSED,
.base = STM32_TIM7_BASE,
};
#endif
#ifdef CONFIG_STM32_TIM8
struct stm32_tim_priv_s stm32_tim8_priv =
{
.ops = &stm32_tim_ops,
.mode = STM32_TIM_MODE_UNUSED,
.base = STM32_TIM8_BASE,
};
#endif
#ifdef CONFIG_STM32_TIM9
struct stm32_tim_priv_s stm32_tim9_priv =
{
.ops = &stm32_tim_ops,
.mode = STM32_TIM_MODE_UNUSED,
.base = STM32_TIM9_BASE,
};
#endif
#ifdef CONFIG_STM32_TIM10
struct stm32_tim_priv_s stm32_tim10_priv =
{
.ops = &stm32_tim_ops,
.mode = STM32_TIM_MODE_UNUSED,
.base = STM32_TIM10_BASE,
};
#endif
#ifdef CONFIG_STM32_TIM11
struct stm32_tim_priv_s stm32_tim11_priv =
{
.ops = &stm32_tim_ops,
.mode = STM32_TIM_MODE_UNUSED,
.base = STM32_TIM11_BASE,
};
#endif
#ifdef CONFIG_STM32_TIM12
struct stm32_tim_priv_s stm32_tim12_priv =
{
.ops = &stm32_tim_ops,
.mode = STM32_TIM_MODE_UNUSED,
.base = STM32_TIM12_BASE,
};
#endif
#ifdef CONFIG_STM32_TIM13
struct stm32_tim_priv_s stm32_tim13_priv =
{
.ops = &stm32_tim_ops,
.mode = STM32_TIM_MODE_UNUSED,
.base = STM32_TIM13_BASE,
};
#endif
#ifdef CONFIG_STM32_TIM14
struct stm32_tim_priv_s stm32_tim14_priv =
{
.ops = &stm32_tim_ops,
.mode = STM32_TIM_MODE_UNUSED,
.base = STM32_TIM14_BASE,
};
#endif
#ifdef CONFIG_STM32_TIM15
struct stm32_tim_priv_s stm32_tim15_priv =
{
.ops = &stm32_tim_ops,
.mode = STM32_TIM_MODE_UNUSED,
.base = STM32_TIM15_BASE,
};
#endif
#ifdef CONFIG_STM32_TIM16
struct stm32_tim_priv_s stm32_tim16_priv =
{
.ops = &stm32_tim_ops,
.mode = STM32_TIM_MODE_UNUSED,
.base = STM32_TIM16_BASE,
};
#endif
#ifdef CONFIG_STM32_TIM17
struct stm32_tim_priv_s stm32_tim17_priv =
{
.ops = &stm32_tim_ops,
.mode = STM32_TIM_MODE_UNUSED,
.base = STM32_TIM17_BASE,
};
#endif
/************************************************************************************
* Public Function - Initialization
* Name: stm32_tim_init
************************************************************************************/
FAR struct stm32_tim_dev_s *stm32_tim_init(int timer)
@ -1632,7 +1745,12 @@ FAR struct stm32_tim_dev_s *stm32_tim_init(int timer)
return dev;
}
/* TODO: Detach interrupts, and close down all TIM Channels */
/************************************************************************************
* Name: stm32_tim_deinit
*
* TODO: Detach interrupts, and close down all TIM Channels
*
************************************************************************************/
int stm32_tim_deinit(FAR struct stm32_tim_dev_s * dev)
{

10
arch/arm/src/stm32/stm32_tim.h
View File

@ -160,18 +160,20 @@ struct stm32_tim_ops_s
int (*setmode)(FAR struct stm32_tim_dev_s *dev, stm32_tim_mode_t mode);
int (*setclock)(FAR struct stm32_tim_dev_s *dev, uint32_t freq);
void (*setperiod)(FAR struct stm32_tim_dev_s *dev, uint32_t period);
uint32_t (*getcounter)(FAR struct stm32_tim_dev_s *dev);
/* General and Advanced Timers Adds */
int (*setchannel)(FAR struct stm32_tim_dev_s *dev, uint8_t channel, stm32_tim_channel_t mode);
int (*setcompare)(FAR struct stm32_tim_dev_s *dev, uint8_t channel, uint32_t compare);
int (*setchannel)(FAR struct stm32_tim_dev_s *dev, uint8_t channel,
stm32_tim_channel_t mode);
int (*setcompare)(FAR struct stm32_tim_dev_s *dev, uint8_t channel,
uint32_t compare);
int (*getcapture)(FAR struct stm32_tim_dev_s *dev, uint8_t channel);
/* Timer interrupts */
int (*setisr)(FAR struct stm32_tim_dev_s *dev, int (*handler)(int irq, void *context), int source);
int (*setisr)(FAR struct stm32_tim_dev_s *dev,
int (*handler)(int irq, void *context), int source);
void (*enableint)(FAR struct stm32_tim_dev_s *dev, int source);
void (*disableint)(FAR struct stm32_tim_dev_s *dev, int source);
void (*ackint)(FAR struct stm32_tim_dev_s *dev, int source);