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drivers/counter: return 64-bit value

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Extend the API to add the possibility
to return value of 64-bit counter.

Signed-off-by: Piotr Kmiecik <piotrx.kmiecik@intel.com>
This commit is contained in:
Piotr Kmiecik 2022-07-01 08:49:40 +02:00 committed by Carles Cufí
parent 0cba9cb8e9
commit 2ce143a3e5
2 changed files with 35 additions and 0 deletions
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9
drivers/counter/counter_handlers.c
View file

@ -71,6 +71,15 @@ static inline int z_vrfy_counter_get_value(const struct device *dev,
Z_OOPS(Z_SYSCALL_MEMORY_WRITE(ticks, sizeof(*ticks)));
return z_impl_counter_get_value((const struct device *)dev, ticks);
}
static inline int z_vrfy_counter_get_value_64(const struct device *dev,
uint64_t *ticks)
{
Z_OOPS(Z_SYSCALL_DRIVER_COUNTER(dev, get_value_64));
Z_OOPS(Z_SYSCALL_MEMORY_WRITE(ticks, sizeof(*ticks)));
return z_impl_counter_get_value_64((const struct device *)dev, ticks);
}
#include <syscalls/counter_get_value_mrsh.c>
static inline int z_vrfy_counter_set_channel_alarm(const struct device *dev,

26
include/zephyr/drivers/counter.h
View file

@ -174,6 +174,8 @@ typedef int (*counter_api_start)(const struct device *dev);
typedef int (*counter_api_stop)(const struct device *dev);
typedef int (*counter_api_get_value)(const struct device *dev,
uint32_t *ticks);
typedef int (*counter_api_get_value_64)(const struct device *dev,
uint64_t *ticks);
typedef int (*counter_api_set_alarm)(const struct device *dev,
uint8_t chan_id,
const struct counter_alarm_cfg *alarm_cfg);
@ -194,6 +196,7 @@ __subsystem struct counter_driver_api {
counter_api_start start;
counter_api_stop stop;
counter_api_get_value get_value;
counter_api_get_value_64 get_value_64;
counter_api_set_alarm set_alarm;
counter_api_cancel_alarm cancel_alarm;
counter_api_set_top_value set_top_value;
@ -366,6 +369,29 @@ static inline int z_impl_counter_get_value(const struct device *dev,
return api->get_value(dev, ticks);
}
/**
* @brief Get current counter 64-bit value.
* @param dev Pointer to the device structure for the driver instance.
* @param ticks Pointer to where to store the current counter value
*
* @retval 0 If successful.
* @retval Negative error code on failure getting the counter value
*/
__syscall int counter_get_value_64(const struct device *dev, uint64_t *ticks);
static inline int z_impl_counter_get_value_64(const struct device *dev,
uint64_t *ticks)
{
const struct counter_driver_api *api =
(struct counter_driver_api *)dev->api;
if (!api->get_value_64) {
return -ENOTSUP;
}
return api->get_value_64(dev, ticks);
}
/**
* @brief Set a single shot alarm on a channel.
*