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Posted to commits@mynewt.apache.org by cc...@apache.org on 2016/11/22 03:25:38 UTC
[23/51] [abbrv] [partial] incubator-mynewt-core git commit: Remove
non-Apache-compatible Nordic SDK files.
http://git-wip-us.apache.org/repos/asf/incubator-mynewt-core/blob/a1481cb2/hw/mcu/nordic/src/ext/nRF5_SDK_11.0.0_89a8197/components/libraries/timer/app_timer_ble_gzll.c
----------------------------------------------------------------------
diff --git a/hw/mcu/nordic/src/ext/nRF5_SDK_11.0.0_89a8197/components/libraries/timer/app_timer_ble_gzll.c b/hw/mcu/nordic/src/ext/nRF5_SDK_11.0.0_89a8197/components/libraries/timer/app_timer_ble_gzll.c
deleted file mode 100644
index 08a2066..0000000
--- a/hw/mcu/nordic/src/ext/nRF5_SDK_11.0.0_89a8197/components/libraries/timer/app_timer_ble_gzll.c
+++ /dev/null
@@ -1,1119 +0,0 @@
-/* Copyright (c) 2012 Nordic Semiconductor. All Rights Reserved.
- *
- * The information contained herein is property of Nordic Semiconductor ASA.
- * Terms and conditions of usage are described in detail in NORDIC
- * SEMICONDUCTOR STANDARD SOFTWARE LICENSE AGREEMENT.
- *
- * Licensees are granted free, non-transferable use of the information. NO
- * WARRANTY of ANY KIND is provided. This heading must NOT be removed from
- * the file.
- *
- */
-
-#include "app_timer.h"
-#include <stdlib.h>
-#include "nrf.h"
-#include "nrf_soc.h"
-#include "nrf_delay.h"
-#include "app_util_platform.h"
-#include "sdk_common.h"
-
-#define RTC1_IRQ_PRI APP_IRQ_PRIORITY_LOW /**< Priority of the RTC1 interrupt (used for checking for timeouts and executing timeout handlers). */
-#define SWI_IRQ_PRI APP_IRQ_PRIORITY_LOW /**< Priority of the SWI interrupt (used for updating the timer list). */
-
-// The current design assumes that both interrupt handlers run at the same interrupt level.
-// If this is to be changed, protection must be added to prevent them from interrupting each other
-// (e.g. by using guard/trigger flags).
-STATIC_ASSERT(RTC1_IRQ_PRI == SWI_IRQ_PRI);
-
-#define MAX_RTC_COUNTER_VAL 0x00FFFFFF /**< Maximum value of the RTC counter. */
-
-#define APP_HIGH_USER_ID 0 /**< User Id for the Application High "user". */
-#define APP_LOW_USER_ID 1 /**< User Id for the Application Low "user". */
-#define THREAD_MODE_USER_ID 2 /**< User Id for the Thread Mode "user". */
-
-#define RTC_COMPARE_OFFSET_MIN 3 /**< Minimum offset between the current RTC counter value and the Capture Compare register. Although the nRF51 Series User Specification recommends this value to be 2, we use 3 to be safer.*/
-
-#define MAX_RTC_TASKS_DELAY 47 /**< Maximum delay until an RTC task is executed. */
-
-#ifdef NRF51
-#define SWI_IRQn SWI1_IRQn
-#define SWI_IRQHandler SWI1_IRQHandler
-#elif defined NRF52
-#define SWI_IRQn SWI1_EGU1_IRQn
-#define SWI_IRQHandler SWI1_EGU1_IRQHandler
-#endif
-
-/**@brief Timer node type. The nodes will be used form a linked list of running timers. */
-typedef struct
-{
- uint32_t ticks_to_expire; /**< Number of ticks from previous timer interrupt to timer expiry. */
- uint32_t ticks_at_start; /**< Current RTC counter value when the timer was started. */
- uint32_t ticks_first_interval; /**< Number of ticks in the first timer interval. */
- uint32_t ticks_periodic_interval; /**< Timer period (for repeating timers). */
- bool is_running; /**< True if timer is running, False otherwise. */
- app_timer_mode_t mode; /**< Timer mode. */
- app_timer_timeout_handler_t p_timeout_handler; /**< Pointer to function to be executed when the timer expires. */
- void * p_context; /**< General purpose pointer. Will be passed to the timeout handler when the timer expires. */
- void * next; /**< Pointer to the next node. */
-} timer_node_t;
-
-STATIC_ASSERT(sizeof(timer_node_t) == APP_TIMER_NODE_SIZE);
-
-/**@brief Set of available timer operation types. */
-typedef enum
-{
- TIMER_USER_OP_TYPE_NONE, /**< Invalid timer operation type. */
- TIMER_USER_OP_TYPE_START, /**< Timer operation type Start. */
- TIMER_USER_OP_TYPE_STOP, /**< Timer operation type Stop. */
- TIMER_USER_OP_TYPE_STOP_ALL /**< Timer operation type Stop All. */
-} timer_user_op_type_t;
-
-/**@brief Structure describing a timer start operation. */
-typedef struct
-{
- uint32_t ticks_at_start; /**< Current RTC counter value when the timer was started. */
- uint32_t ticks_first_interval; /**< Number of ticks in the first timer interval. */
- uint32_t ticks_periodic_interval; /**< Timer period (for repeating timers). */
- void * p_context; /**< General purpose pointer. Will be passed to the timeout handler when the timer expires. */
-} timer_user_op_start_t;
-
-/**@brief Structure describing a timer operation. */
-typedef struct
-{
- timer_user_op_type_t op_type; /**< Id of timer on which the operation is to be performed. */
- timer_node_t * p_node;
- union
- {
- timer_user_op_start_t start; /**< Structure describing a timer start operation. */
- } params;
-} timer_user_op_t;
-
-STATIC_ASSERT(sizeof(timer_user_op_t) <= APP_TIMER_USER_OP_SIZE);
-STATIC_ASSERT(sizeof(timer_user_op_t) % 4 == 0);
-
-/**@brief Structure describing a timer user.
- *
- * @details For each user of the timer module, there will be a timer operations queue. This queue
- * will hold timer operations issued by this user until the timer interrupt handler
- * processes these operations. For the current implementation, there will be one user for
- * each interrupt level available to the application (APP_HIGH, APP_LOW and THREAD_MODE),
- * but the module can easily be modified to e.g. have one queue per process when using an
- * RTOS. The purpose of the queues is to be able to have a completely lockless timer
- * implementation.
- */
-typedef struct
-{
- uint8_t first; /**< Index of first entry to have been inserted in the queue (i.e. the next entry to be executed). */
- uint8_t last; /**< Index of last entry to have been inserted in the queue. */
- uint8_t user_op_queue_size; /**< Queue size. */
- timer_user_op_t * p_user_op_queue; /**< Queue buffer. */
-} timer_user_t;
-
-STATIC_ASSERT(sizeof(timer_user_t) == APP_TIMER_USER_SIZE);
-STATIC_ASSERT(sizeof(timer_user_t) % 4 == 0);
-
-/**@brief User id type.
- *
- * @details In the current implementation, this will automatically be generated from the current
- * interrupt level.
- */
-typedef uint32_t timer_user_id_t;
-
-#define CONTEXT_QUEUE_SIZE_MAX (2)
-
-static uint8_t m_user_array_size; /**< Size of timer user array. */
-static timer_user_t * mp_users = NULL; /**< Array of timer users. */
-static timer_node_t * mp_timer_id_head; /**< First timer in list of running timers. */
-static uint32_t m_ticks_latest; /**< Last known RTC counter value. */
-static uint32_t m_ticks_elapsed[CONTEXT_QUEUE_SIZE_MAX]; /**< Timer internal elapsed ticks queue. */
-static uint8_t m_ticks_elapsed_q_read_ind; /**< Timer internal elapsed ticks queue read index. */
-static uint8_t m_ticks_elapsed_q_write_ind; /**< Timer internal elapsed ticks queue write index. */
-static app_timer_evt_schedule_func_t m_evt_schedule_func; /**< Pointer to function for propagating timeout events to the scheduler. */
-static bool m_rtc1_running; /**< Boolean indicating if RTC1 is running. */
-static bool m_rtc1_reset; /**< Boolean indicating if RTC1 counter has been reset due to last timer removed from timer list during the timer list handling. */
-
-
-#define MODULE_INITIALIZED (mp_users != NULL)
-#include "sdk_macros.h"
-
-
-/**@brief Function for initializing the RTC1 counter.
- *
- * @param[in] prescaler Value of the RTC1 PRESCALER register. Set to 0 for no prescaling.
- */
-static void rtc1_init(uint32_t prescaler)
-{
- NRF_RTC1->PRESCALER = prescaler;
- NVIC_SetPriority(RTC1_IRQn, RTC1_IRQ_PRI);
-}
-
-
-/**@brief Function for starting the RTC1 timer.
- */
-static void rtc1_start(void)
-{
- NRF_RTC1->EVTENSET = RTC_EVTEN_COMPARE0_Msk;
- NRF_RTC1->INTENSET = RTC_INTENSET_COMPARE0_Msk;
-
- NVIC_ClearPendingIRQ(RTC1_IRQn);
- NVIC_EnableIRQ(RTC1_IRQn);
-
- NRF_RTC1->TASKS_START = 1;
- nrf_delay_us(MAX_RTC_TASKS_DELAY);
-
- m_rtc1_running = true;
-}
-
-
-/**@brief Function for stopping the RTC1 timer.
- */
-static void rtc1_stop(void)
-{
- NVIC_DisableIRQ(RTC1_IRQn);
-
- NRF_RTC1->EVTENCLR = RTC_EVTEN_COMPARE0_Msk;
- NRF_RTC1->INTENCLR = RTC_INTENSET_COMPARE0_Msk;
-
- NRF_RTC1->TASKS_STOP = 1;
- nrf_delay_us(MAX_RTC_TASKS_DELAY);
-
- NRF_RTC1->TASKS_CLEAR = 1;
- m_ticks_latest = 0;
- nrf_delay_us(MAX_RTC_TASKS_DELAY);
-
- m_rtc1_running = false;
-}
-
-
-/**@brief Function for returning the current value of the RTC1 counter.
- *
- * @return Current value of the RTC1 counter.
- */
-static __INLINE uint32_t rtc1_counter_get(void)
-{
- return NRF_RTC1->COUNTER;
-}
-
-
-/**@brief Function for computing the difference between two RTC1 counter values.
- *
- * @return Number of ticks elapsed from ticks_old to ticks_now.
- */
-static __INLINE uint32_t ticks_diff_get(uint32_t ticks_now, uint32_t ticks_old)
-{
- return ((ticks_now - ticks_old) & MAX_RTC_COUNTER_VAL);
-}
-
-
-/**@brief Function for setting the RTC1 Capture Compare register 0, and enabling the corresponding
- * event.
- *
- * @param[in] value New value of Capture Compare register 0.
- */
-static __INLINE void rtc1_compare0_set(uint32_t value)
-{
- NRF_RTC1->CC[0] = value;
-}
-
-
-/**@brief Function for inserting a timer in the timer list.
- *
- * @param[in] timer_id Id of timer to insert.
- */
-static void timer_list_insert(timer_node_t * p_timer)
-{
- if (mp_timer_id_head == NULL)
- {
- mp_timer_id_head = p_timer;
- }
- else
- {
- if (p_timer->ticks_to_expire <= mp_timer_id_head->ticks_to_expire)
- {
- mp_timer_id_head->ticks_to_expire -= p_timer->ticks_to_expire;
-
- p_timer->next = mp_timer_id_head;
- mp_timer_id_head = p_timer;
- }
- else
- {
- timer_node_t * p_previous;
- timer_node_t * p_current;
- uint32_t ticks_to_expire;
-
- ticks_to_expire = p_timer->ticks_to_expire;
- p_previous = mp_timer_id_head;
- p_current = mp_timer_id_head;
-
- while ((p_current != NULL) && (ticks_to_expire > p_current->ticks_to_expire))
- {
- ticks_to_expire -= p_current->ticks_to_expire;
- p_previous = p_current;
- p_current = p_current->next;
- }
-
- if (p_current != NULL)
- {
- p_current->ticks_to_expire -= ticks_to_expire;
- }
-
- p_timer->ticks_to_expire = ticks_to_expire;
- p_timer->next = p_current;
- p_previous->next = p_timer;
- }
- }
-}
-
-
-/**@brief Function for removing a timer from the timer queue.
- *
- * @param[in] timer_id Id of timer to remove.
- */
-static void timer_list_remove(timer_node_t * p_timer)
-{
- timer_node_t * p_previous;
- timer_node_t * p_current;
- uint32_t timeout;
-
- // Find the timer's position in timer list.
- p_previous = mp_timer_id_head;
- p_current = p_previous;
-
- while (p_current != NULL)
- {
- if (p_current == p_timer)
- {
- break;
- }
- p_previous = p_current;
- p_current = p_current->next;
- }
-
- // Timer not in active list.
- if (p_current == NULL)
- {
- return;
- }
-
- // Timer is the first in the list
- if (p_previous == p_current)
- {
- mp_timer_id_head = mp_timer_id_head->next;
-
- // No more timers in the list. Reset RTC1 in case Start timer operations are present in the queue.
- if (mp_timer_id_head == NULL)
- {
- NRF_RTC1->TASKS_CLEAR = 1;
- m_ticks_latest = 0;
- m_rtc1_reset = true;
- }
- }
-
- // Remaining timeout between next timeout.
- timeout = p_current->ticks_to_expire;
-
- // Link previous timer with next of this timer, i.e. removing the timer from list.
- p_previous->next = p_current->next;
-
- // If this is not the last timer, increment the next timer by this timer timeout.
- p_current = p_previous->next;
- if (p_current != NULL)
- {
- p_current->ticks_to_expire += timeout;
- }
-}
-
-
-/**@brief Function for scheduling a check for timeouts by generating a RTC1 interrupt.
- */
-static void timer_timeouts_check_sched(void)
-{
- NVIC_SetPendingIRQ(RTC1_IRQn);
-}
-
-
-/**@brief Function for scheduling a timer list update by generating a SWI interrupt.
- */
-static void timer_list_handler_sched(void)
-{
- NVIC_SetPendingIRQ(SWI_IRQn);
-}
-
-
-/**@brief Function for executing an application timeout handler, either by calling it directly, or
- * by passing an event to the @ref app_scheduler.
- *
- * @param[in] p_timer Pointer to expired timer.
- */
-static void timeout_handler_exec(timer_node_t * p_timer)
-{
- if (m_evt_schedule_func != NULL)
- {
- uint32_t err_code = m_evt_schedule_func(p_timer->p_timeout_handler, p_timer->p_context);
- APP_ERROR_CHECK(err_code);
- }
- else
- {
- p_timer->p_timeout_handler(p_timer->p_context);
- }
-}
-
-
-/**@brief Function for checking for expired timers.
- */
-static void timer_timeouts_check(void)
-{
- // Handle expired of timer
- if (mp_timer_id_head != NULL)
- {
- timer_node_t * p_timer;
- timer_node_t * p_previous_timer;
- uint32_t ticks_elapsed;
- uint32_t ticks_expired;
-
- // Initialize actual elapsed ticks being consumed to 0.
- ticks_expired = 0;
-
- // ticks_elapsed is collected here, job will use it.
- ticks_elapsed = ticks_diff_get(rtc1_counter_get(), m_ticks_latest);
-
- // Auto variable containing the head of timers expiring.
- p_timer = mp_timer_id_head;
-
- // Expire all timers within ticks_elapsed and collect ticks_expired.
- while (p_timer != NULL)
- {
- // Do nothing if timer did not expire.
- if (ticks_elapsed < p_timer->ticks_to_expire)
- {
- break;
- }
-
- // Decrement ticks_elapsed and collect expired ticks.
- ticks_elapsed -= p_timer->ticks_to_expire;
- ticks_expired += p_timer->ticks_to_expire;
-
- // Move to next timer.
- p_previous_timer = p_timer;
- p_timer = p_timer->next;
-
- // Execute Task.
- timeout_handler_exec(p_previous_timer);
- }
-
- // Prepare to queue the ticks expired in the m_ticks_elapsed queue.
- if (m_ticks_elapsed_q_read_ind == m_ticks_elapsed_q_write_ind)
- {
- // The read index of the queue is equal to the write index. This means the new
- // value of ticks_expired should be stored at a new location in the m_ticks_elapsed
- // queue (which is implemented as a double buffer).
-
- // Check if there will be a queue overflow.
- if (++m_ticks_elapsed_q_write_ind == CONTEXT_QUEUE_SIZE_MAX)
- {
- // There will be a queue overflow. Hence the write index should point to the start
- // of the queue.
- m_ticks_elapsed_q_write_ind = 0;
- }
- }
-
- // Queue the ticks expired.
- m_ticks_elapsed[m_ticks_elapsed_q_write_ind] = ticks_expired;
-
- timer_list_handler_sched();
- }
-}
-
-
-/**@brief Function for acquiring the number of ticks elapsed.
- *
- * @param[out] p_ticks_elapsed Number of ticks elapsed.
- *
- * @return TRUE if elapsed ticks was read from queue, FALSE otherwise.
- */
-static bool elapsed_ticks_acquire(uint32_t * p_ticks_elapsed)
-{
- // Pick the elapsed value from queue.
- if (m_ticks_elapsed_q_read_ind != m_ticks_elapsed_q_write_ind)
- {
- // Dequeue elapsed value.
- m_ticks_elapsed_q_read_ind++;
- if (m_ticks_elapsed_q_read_ind == CONTEXT_QUEUE_SIZE_MAX)
- {
- m_ticks_elapsed_q_read_ind = 0;
- }
-
- *p_ticks_elapsed = m_ticks_elapsed[m_ticks_elapsed_q_read_ind];
-
- m_ticks_latest += *p_ticks_elapsed;
- m_ticks_latest &= MAX_RTC_COUNTER_VAL;
-
- return true;
- }
- else
- {
- // No elapsed value in queue.
- *p_ticks_elapsed = 0;
- return false;
- }
-}
-
-
-/**@brief Function for handling the timer list deletions.
- *
- * @return TRUE if Capture Compare register must be updated, FALSE otherwise.
- */
-static bool list_deletions_handler(void)
-{
- timer_node_t * p_timer_old_head;
- uint8_t user_id;
-
- // Remember the old head, so as to decide if new compare needs to be set.
- p_timer_old_head = mp_timer_id_head;
-
- user_id = m_user_array_size;
- while (user_id--)
- {
- timer_user_t * p_user = &mp_users[user_id];
- uint8_t user_ops_first = p_user->first;
-
- while (user_ops_first != p_user->last)
- {
- timer_node_t * p_timer;
- timer_user_op_t * p_user_op = &p_user->p_user_op_queue[user_ops_first];
-
- // Traverse to next operation in queue.
- user_ops_first++;
- if (user_ops_first == p_user->user_op_queue_size)
- {
- user_ops_first = 0;
- }
-
- switch (p_user_op->op_type)
- {
- case TIMER_USER_OP_TYPE_STOP:
- // Delete node if timer is running.
- p_timer = p_user_op->p_node;
- if (p_timer->is_running)
- {
- timer_list_remove(p_user_op->p_node);
- p_timer->is_running = false;
- }
- break;
-
- case TIMER_USER_OP_TYPE_STOP_ALL:
- // Delete list of running timers, and mark all timers as not running.
- while (mp_timer_id_head != NULL)
- {
- timer_node_t * p_head = mp_timer_id_head;
-
- p_head->is_running = false;
- mp_timer_id_head = p_head->next;
- }
- break;
-
- default:
- // No implementation needed.
- break;
- }
- }
- }
-
- // Detect change in head of the list.
- return (mp_timer_id_head != p_timer_old_head);
-}
-
-
-/**@brief Function for updating the timer list for expired timers.
- *
- * @param[in] ticks_elapsed Number of elapsed ticks.
- * @param[in] ticks_previous Previous known value of the RTC counter.
- * @param[out] p_restart_list_head List of repeating timers to be restarted.
- */
-static void expired_timers_handler(uint32_t ticks_elapsed,
- uint32_t ticks_previous,
- timer_node_t ** p_restart_list_head)
-{
- uint32_t ticks_expired = 0;
-
- while (mp_timer_id_head != NULL)
- {
- timer_node_t * p_timer;
- timer_node_t * p_timer_expired;
-
- // Auto variable for current timer node.
- p_timer = mp_timer_id_head;
-
- // Do nothing if timer did not expire
- if (ticks_elapsed < p_timer->ticks_to_expire)
- {
- p_timer->ticks_to_expire -= ticks_elapsed;
- break;
- }
-
- // Decrement ticks_elapsed and collect expired ticks.
- ticks_elapsed -= p_timer->ticks_to_expire;
- ticks_expired += p_timer->ticks_to_expire;
-
- // Timer expired, set ticks_to_expire zero.
- p_timer->ticks_to_expire = 0;
- p_timer->is_running = false;
-
- // Remove the expired timer from head.
- p_timer_expired = mp_timer_id_head;
- mp_timer_id_head = p_timer->next;
-
- // Timer will be restarted if periodic.
- if (p_timer->ticks_periodic_interval != 0)
- {
- p_timer->ticks_at_start = (ticks_previous + ticks_expired) & MAX_RTC_COUNTER_VAL;
- p_timer->ticks_first_interval = p_timer->ticks_periodic_interval;
- p_timer->next = *p_restart_list_head;
- *p_restart_list_head = p_timer_expired;
- }
- }
-}
-
-
-/**@brief Function for handling timer list insertions.
- *
- * @param[in] p_restart_list_head List of repeating timers to be restarted.
- *
- * @return TRUE if Capture Compare register must be updated, FALSE otherwise.
- */
-static bool list_insertions_handler(timer_node_t * p_restart_list_head)
-{
- timer_node_t * p_timer_id_old_head;
- uint8_t user_id;
-
- // Remember the old head, so as to decide if new compare needs to be set.
- p_timer_id_old_head = mp_timer_id_head;
-
- user_id = m_user_array_size;
- while (user_id--)
- {
- timer_user_t * p_user = &mp_users[user_id];
-
- // Handle insertions of timers.
- while ((p_restart_list_head != NULL) || (p_user->first != p_user->last))
- {
- timer_node_t * p_timer;
-
- if (p_restart_list_head != NULL)
- {
- p_timer = p_restart_list_head;
- p_restart_list_head = p_timer->next;
- }
- else
- {
- timer_user_op_t * p_user_op = &p_user->p_user_op_queue[p_user->first];
-
- p_user->first++;
- if (p_user->first == p_user->user_op_queue_size)
- {
- p_user->first = 0;
- }
-
- p_timer = p_user_op->p_node;
-
- if ((p_user_op->op_type != TIMER_USER_OP_TYPE_START) || p_timer->is_running)
- {
- continue;
- }
-
- p_timer->ticks_at_start = p_user_op->params.start.ticks_at_start;
- p_timer->ticks_first_interval = p_user_op->params.start.ticks_first_interval;
- p_timer->ticks_periodic_interval = p_user_op->params.start.ticks_periodic_interval;
- p_timer->p_context = p_user_op->params.start.p_context;
-
- if (m_rtc1_reset)
- {
- p_timer->ticks_at_start = 0;
- }
- }
-
- // Prepare the node to be inserted.
- if (
- ((p_timer->ticks_at_start - m_ticks_latest) & MAX_RTC_COUNTER_VAL)
- <
- (MAX_RTC_COUNTER_VAL / 2)
- )
- {
- p_timer->ticks_to_expire = ticks_diff_get(p_timer->ticks_at_start, m_ticks_latest) +
- p_timer->ticks_first_interval;
- }
- else
- {
- uint32_t delta_current_start;
-
- delta_current_start = ticks_diff_get(m_ticks_latest, p_timer->ticks_at_start);
- if (p_timer->ticks_first_interval > delta_current_start)
- {
- p_timer->ticks_to_expire = p_timer->ticks_first_interval - delta_current_start;
- }
- else
- {
- p_timer->ticks_to_expire = 0;
- }
- }
-
- p_timer->ticks_at_start = 0;
- p_timer->ticks_first_interval = 0;
- p_timer->is_running = true;
- p_timer->next = NULL;
-
- // Insert into list
- timer_list_insert(p_timer);
- }
- }
-
- return (mp_timer_id_head != p_timer_id_old_head);
-}
-
-
-/**@brief Function for updating the Capture Compare register.
- */
-static void compare_reg_update(timer_node_t * p_timer_id_head_old)
-{
- // Setup the timeout for timers on the head of the list
- if (mp_timer_id_head != NULL)
- {
- uint32_t ticks_to_expire = mp_timer_id_head->ticks_to_expire;
- uint32_t pre_counter_val = rtc1_counter_get();
- uint32_t cc = m_ticks_latest;
- uint32_t ticks_elapsed = ticks_diff_get(pre_counter_val, cc) + RTC_COMPARE_OFFSET_MIN;
-
- if (!m_rtc1_running)
- {
- // No timers were already running, start RTC
- rtc1_start();
- }
-
- cc += (ticks_elapsed < ticks_to_expire) ? ticks_to_expire : ticks_elapsed;
- cc &= MAX_RTC_COUNTER_VAL;
-
- rtc1_compare0_set(cc);
-
- uint32_t post_counter_val = rtc1_counter_get();
-
- if (
- (ticks_diff_get(post_counter_val, pre_counter_val) + RTC_COMPARE_OFFSET_MIN)
- >
- ticks_diff_get(cc, pre_counter_val)
- )
- {
- // When this happens the COMPARE event may not be triggered by the RTC.
- // The nRF51 Series User Specification states that if the COUNTER value is N
- // (i.e post_counter_val = N), writing N or N+1 to a CC register may not trigger a
- // COMPARE event. Hence the RTC interrupt is forcefully pended by calling the following
- // function.
- timer_timeouts_check_sched();
- }
- }
- else
- {
- // No timers are running, stop RTC
- rtc1_stop();
- }
-}
-
-
-/**@brief Function for handling changes to the timer list.
- */
-static void timer_list_handler(void)
-{
- timer_node_t * p_restart_list_head = NULL;
-
- uint32_t ticks_elapsed;
- uint32_t ticks_previous;
- bool ticks_have_elapsed;
- bool compare_update;
- timer_node_t * p_timer_id_head_old;
-
- // Back up the previous known tick and previous list head
- ticks_previous = m_ticks_latest;
- p_timer_id_head_old = mp_timer_id_head;
-
- // Get number of elapsed ticks
- ticks_have_elapsed = elapsed_ticks_acquire(&ticks_elapsed);
-
- // Handle list deletions
- compare_update = list_deletions_handler();
-
- // Handle expired timers
- if (ticks_have_elapsed)
- {
- expired_timers_handler(ticks_elapsed, ticks_previous, &p_restart_list_head);
- compare_update = true;
- }
-
- // Handle list insertions
- if (list_insertions_handler(p_restart_list_head))
- {
- compare_update = true;
- }
-
- // Update compare register if necessary
- if (compare_update)
- {
- compare_reg_update(p_timer_id_head_old);
- }
- m_rtc1_reset = false;
-}
-
-
-/**@brief Function for enqueueing a new operations queue entry.
- *
- * @param[in] p_user User that the entry is to be enqueued for.
- * @param[in] last_index Index of the next last index to be enqueued.
- */
-static void user_op_enque(timer_user_t * p_user, uint8_t last_index)
-{
- p_user->last = last_index;
-}
-
-
-/**@brief Function for allocating a new operations queue entry.
- *
- * @param[in] p_user User that the entry is to be allocated for.
- * @param[out] p_last_index Index of the next last index to be enqueued.
- *
- * @return Pointer to allocated queue entry, or NULL if queue is full.
- */
-static timer_user_op_t * user_op_alloc(timer_user_t * p_user, uint8_t * p_last_index)
-{
- uint8_t last;
- timer_user_op_t * p_user_op;
-
- last = p_user->last + 1;
- if (last == p_user->user_op_queue_size)
- {
- // Overflow case.
- last = 0;
- }
- if (last == p_user->first)
- {
- // Queue is full.
- return NULL;
- }
-
- *p_last_index = last;
- p_user_op = &p_user->p_user_op_queue[p_user->last];
-
- return p_user_op;
-}
-
-
-/**@brief Function for scheduling a Timer Start operation.
- *
- * @param[in] user_id Id of user calling this function.
- * @param[in] timer_id Id of timer to start.
- * @param[in] timeout_initial Time (in ticks) to first timer expiry.
- * @param[in] timeout_periodic Time (in ticks) between periodic expiries.
- * @param[in] p_context General purpose pointer. Will be passed to the timeout handler when
- * the timer expires.
- * @return NRF_SUCCESS on success, otherwise an error code.
- */
-static uint32_t timer_start_op_schedule(timer_user_id_t user_id,
- timer_node_t * p_node,
- uint32_t timeout_initial,
- uint32_t timeout_periodic,
- void * p_context)
-{
- uint8_t last_index;
-
- timer_user_op_t * p_user_op = user_op_alloc(&mp_users[user_id], &last_index);
- if (p_user_op == NULL)
- {
- return NRF_ERROR_NO_MEM;
- }
-
- p_user_op->op_type = TIMER_USER_OP_TYPE_START;
- p_user_op->p_node = p_node;
- p_user_op->params.start.ticks_at_start = rtc1_counter_get();
- p_user_op->params.start.ticks_first_interval = timeout_initial;
- p_user_op->params.start.ticks_periodic_interval = timeout_periodic;
- p_user_op->params.start.p_context = p_context;
-
- user_op_enque(&mp_users[user_id], last_index);
-
- timer_list_handler_sched();
-
- return NRF_SUCCESS;
-}
-
-
-/**@brief Function for scheduling a Timer Stop operation.
- *
- * @param[in] user_id Id of user calling this function.
- * @param[in] timer_id Id of timer to stop.
- *
- * @return NRF_SUCCESS on successful scheduling a timer stop operation. NRF_ERROR_NO_MEM when there
- * is no memory left to schedule the timer stop operation.
- */
-static uint32_t timer_stop_op_schedule(timer_user_id_t user_id, timer_node_t * p_node)
-{
- uint8_t last_index;
-
- timer_user_op_t * p_user_op = user_op_alloc(&mp_users[user_id], &last_index);
- if (p_user_op == NULL)
- {
- return NRF_ERROR_NO_MEM;
- }
-
- p_user_op->op_type = TIMER_USER_OP_TYPE_STOP;
- p_user_op->p_node = p_node;
-
- user_op_enque(&mp_users[user_id], last_index);
-
- timer_list_handler_sched();
-
- return NRF_SUCCESS;
-}
-
-
-/**@brief Function for scheduling a Timer Stop All operation.
- *
- * @param[in] user_id Id of user calling this function.
- */
-static uint32_t timer_stop_all_op_schedule(timer_user_id_t user_id)
-{
- uint8_t last_index;
-
- timer_user_op_t * p_user_op = user_op_alloc(&mp_users[user_id], &last_index);
- if (p_user_op == NULL)
- {
- return NRF_ERROR_NO_MEM;
- }
-
- p_user_op->op_type = TIMER_USER_OP_TYPE_STOP_ALL;
- p_user_op->p_node = NULL;
-
- user_op_enque(&mp_users[user_id], last_index);
-
- timer_list_handler_sched();
-
- return NRF_SUCCESS;
-}
-
-
-/**@brief Function for handling the RTC1 interrupt.
- *
- * @details Checks for timeouts, and executes timeout handlers for expired timers.
- */
-void RTC1_IRQHandler(void)
-{
- // Clear all events (also unexpected ones)
- NRF_RTC1->EVENTS_COMPARE[0] = 0;
- NRF_RTC1->EVENTS_COMPARE[1] = 0;
- NRF_RTC1->EVENTS_COMPARE[2] = 0;
- NRF_RTC1->EVENTS_COMPARE[3] = 0;
- NRF_RTC1->EVENTS_TICK = 0;
- NRF_RTC1->EVENTS_OVRFLW = 0;
-
- // Check for expired timers
- timer_timeouts_check();
-}
-
-
-/**@brief Function for handling the SWI interrupt.
- *
- * @details Performs all updates to the timer list.
- */
-void SWI_IRQHandler(void)
-{
- timer_list_handler();
-}
-
-
-uint32_t app_timer_init(uint32_t prescaler,
- uint8_t op_queues_size,
- void * p_buffer,
- app_timer_evt_schedule_func_t evt_schedule_func)
-{
- int i;
-
- // Check that buffer is correctly aligned
- if (!is_word_aligned(p_buffer))
- {
- return NRF_ERROR_INVALID_PARAM;
- }
- // Check for NULL buffer
- if (p_buffer == NULL)
- {
- mp_users = NULL;
- return NRF_ERROR_INVALID_PARAM;
- }
-
- // Stop RTC to prevent any running timers from expiring (in case of reinitialization)
- rtc1_stop();
-
- m_evt_schedule_func = evt_schedule_func;
-
- // Initialize users array
- m_user_array_size = APP_TIMER_INT_LEVELS;
- mp_users = p_buffer;
-
- // Skip user array
- p_buffer = &((uint8_t *)p_buffer)[APP_TIMER_INT_LEVELS * sizeof(timer_user_t)];
-
- // Initialize operation queues
- for (i = 0; i < APP_TIMER_INT_LEVELS; i++)
- {
- timer_user_t * p_user = &mp_users[i];
-
- p_user->first = 0;
- p_user->last = 0;
- p_user->user_op_queue_size = op_queues_size;
- p_user->p_user_op_queue = p_buffer;
-
- // Skip operation queue
- p_buffer = &((uint8_t *)p_buffer)[op_queues_size * sizeof(timer_user_op_t)];
- }
-
- mp_timer_id_head = NULL;
- m_ticks_elapsed_q_read_ind = 0;
- m_ticks_elapsed_q_write_ind = 0;
-
- NVIC_ClearPendingIRQ(SWI_IRQn);
- NVIC_SetPriority(SWI_IRQn, SWI_IRQ_PRI);
- NVIC_EnableIRQ(SWI_IRQn);
-
- rtc1_init(prescaler);
-
- m_ticks_latest = rtc1_counter_get();
-
- return NRF_SUCCESS;
-}
-
-
-uint32_t app_timer_create(app_timer_id_t const * p_timer_id,
- app_timer_mode_t mode,
- app_timer_timeout_handler_t timeout_handler)
-{
- // Check state and parameters
- VERIFY_MODULE_INITIALIZED();
-
- if (timeout_handler == NULL)
- {
- return NRF_ERROR_INVALID_PARAM;
- }
- if (p_timer_id == NULL)
- {
- return NRF_ERROR_INVALID_PARAM;
- }
- if (((timer_node_t*)*p_timer_id)->is_running)
- {
- return NRF_ERROR_INVALID_STATE;
- }
-
- timer_node_t * p_node = (timer_node_t *)*p_timer_id;
- p_node->is_running = false;
- p_node->mode = mode;
- p_node->p_timeout_handler = timeout_handler;
- return NRF_SUCCESS;
-}
-
-
-/**@brief Function for creating a timer user id from the current interrupt level.
- *
- * @return Timer user id.
-*/
-static timer_user_id_t user_id_get(void)
-{
- timer_user_id_t ret;
-
- STATIC_ASSERT(APP_TIMER_INT_LEVELS == 3);
-
- switch (current_int_priority_get())
- {
- case APP_IRQ_PRIORITY_HIGH:
- ret = APP_HIGH_USER_ID;
- break;
-
- case APP_IRQ_PRIORITY_LOW:
- ret = APP_LOW_USER_ID;
- break;
-
- default:
- ret = THREAD_MODE_USER_ID;
- break;
- }
-
- return ret;
-}
-
-
-uint32_t app_timer_start(app_timer_id_t timer_id, uint32_t timeout_ticks, void * p_context)
-{
- uint32_t timeout_periodic;
- timer_node_t * p_node = (timer_node_t*)timer_id;
-
- // Check state and parameters
- VERIFY_MODULE_INITIALIZED();
-
- if (timer_id == 0)
- {
- return NRF_ERROR_INVALID_STATE;
- }
- if (timeout_ticks < APP_TIMER_MIN_TIMEOUT_TICKS)
- {
- return NRF_ERROR_INVALID_PARAM;
- }
- if (p_node->p_timeout_handler == NULL)
- {
- return NRF_ERROR_INVALID_STATE;
- }
-
- // Schedule timer start operation
- timeout_periodic = (p_node->mode == APP_TIMER_MODE_REPEATED) ? timeout_ticks : 0;
-
- return timer_start_op_schedule(user_id_get(),
- p_node,
- timeout_ticks,
- timeout_periodic,
- p_context);
-}
-
-
-uint32_t app_timer_stop(app_timer_id_t timer_id)
-{
- timer_node_t * p_node = (timer_node_t*)timer_id;
- // Check state and parameters
- VERIFY_MODULE_INITIALIZED();
-
- if ((timer_id == NULL) || (p_node->p_timeout_handler == NULL))
- {
- return NRF_ERROR_INVALID_STATE;
- }
-
- // Schedule timer stop operation
- return timer_stop_op_schedule(user_id_get(), p_node);
-}
-
-
-uint32_t app_timer_stop_all(void)
-{
- // Check state
- VERIFY_MODULE_INITIALIZED();
-
- return timer_stop_all_op_schedule(user_id_get());
-}
-
-
-uint32_t app_timer_cnt_get(uint32_t * p_ticks)
-{
- *p_ticks = rtc1_counter_get();
- return NRF_SUCCESS;
-}
-
-
-uint32_t app_timer_cnt_diff_compute(uint32_t ticks_to,
- uint32_t ticks_from,
- uint32_t * p_ticks_diff)
-{
- *p_ticks_diff = ticks_diff_get(ticks_to, ticks_from);
- return NRF_SUCCESS;
-}
-
http://git-wip-us.apache.org/repos/asf/incubator-mynewt-core/blob/a1481cb2/hw/mcu/nordic/src/ext/nRF5_SDK_11.0.0_89a8197/components/libraries/timer/app_timer_freertos.c
----------------------------------------------------------------------
diff --git a/hw/mcu/nordic/src/ext/nRF5_SDK_11.0.0_89a8197/components/libraries/timer/app_timer_freertos.c b/hw/mcu/nordic/src/ext/nRF5_SDK_11.0.0_89a8197/components/libraries/timer/app_timer_freertos.c
deleted file mode 100644
index 9c68bfb..0000000
--- a/hw/mcu/nordic/src/ext/nRF5_SDK_11.0.0_89a8197/components/libraries/timer/app_timer_freertos.c
+++ /dev/null
@@ -1,230 +0,0 @@
-/* Copyright (c) 2014 Nordic Semiconductor. All Rights Reserved.
- *
- * The information contained herein is property of Nordic Semiconductor ASA.
- * Terms and conditions of usage are described in detail in NORDIC
- * SEMICONDUCTOR STANDARD SOFTWARE LICENSE AGREEMENT.
- *
- * Licensees are granted free, non-transferable use of the information. NO
- * WARRANTY of ANY KIND is provided. This heading must NOT be removed from
- * the file.
- *
- */
-
-#include "FreeRTOS.h"
-#include "task.h"
-#include "timers.h"
-
-#include "app_timer.h"
-#include <stdlib.h>
-#include <string.h>
-#include "nrf.h"
-#include "app_error.h"
-#include "app_util.h"
-#include "nordic_common.h"
-
-/* Check if RTC FreeRTOS version is used */
-#if configTICK_SOURCE != FREERTOS_USE_RTC
-#error app_timer in FreeRTOS variant have to be used with RTC tick source configuration. Default configuration have to be used in other case.
-#endif
-
-/**
- * @brief Waiting time for the timer queue
- *
- * Number of system ticks to wait for the timer queue to put the message.
- * It is strongly recommended to set this to the value bigger than 1.
- * In other case if timer message queue is full - any operation on timer may fail.
- * @note
- * Timer functions called from interrupt context would never wait.
- */
-#define APP_TIMER_WAIT_FOR_QUEUE 2
-
-/**@brief This structure keeps information about osTimer.*/
-typedef struct
-{
- void * argument;
- TimerHandle_t osHandle;
- app_timer_timeout_handler_t func;
- /**
- * This member is to make sure that timer function is only called if timer is running.
- * FreeRTOS may have timer running even after stop function is called,
- * because it processes commands in Timer task and stopping function only puts command into the queue. */
- bool active;
-}app_timer_info_t;
-
-/**
- * @brief Prescaler that was set by the user
- *
- * In FreeRTOS version of app_timer the prescaler setting is constant and done by the operating system.
- * But the application expect the prescaler to be set according to value given in setup and then
- * calculate required ticks using this value.
- * For compatibility we remember the value set and use it for recalculation of required timer setting.
- */
-static uint32_t m_prescaler;
-
-/* Check if freeRTOS timers are activated */
-#if configUSE_TIMERS == 0
- #error app_timer for freeRTOS requires configUSE_TIMERS option to be activated.
-#endif
-
-/* Check if app_timer_t variable type can held our app_timer_info_t structure */
-STATIC_ASSERT(sizeof(app_timer_info_t) <= sizeof(app_timer_t));
-
-
-/**
- * @brief Internal callback function for the system timer
- *
- * Internal function that is called from the system timer.
- * It gets our parameter from timer data and sends it to user function.
- * @param[in] xTimer Timer handler
- */
-static void app_timer_callback(TimerHandle_t xTimer)
-{
- app_timer_info_t * pinfo = (app_timer_info_t*)(pvTimerGetTimerID(xTimer));
- ASSERT(pinfo->osHandle == xTimer);
- ASSERT(pinfo->func != NULL);
-
- if(pinfo->active)
- pinfo->func(pinfo->argument);
-}
-
-
-uint32_t app_timer_init(uint32_t prescaler,
- uint8_t op_queues_size,
- void * p_buffer,
- app_timer_evt_schedule_func_t evt_schedule_func)
-{
- UNUSED_PARAMETER(op_queues_size);
- UNUSED_PARAMETER(p_buffer);
- UNUSED_PARAMETER(evt_schedule_func);
-
- m_prescaler = prescaler + 1;
-
- return NRF_SUCCESS;
-}
-
-
-uint32_t app_timer_create(app_timer_id_t const * p_timer_id,
- app_timer_mode_t mode,
- app_timer_timeout_handler_t timeout_handler)
-{
- app_timer_info_t * pinfo = (app_timer_info_t*)(*p_timer_id);
- uint32_t err_code = NRF_SUCCESS;
- unsigned long timer_mode;
-
- if((timeout_handler == NULL) || (p_timer_id == NULL))
- {
- return NRF_ERROR_INVALID_PARAM;
- }
- if(pinfo->active)
- {
- return NRF_ERROR_INVALID_STATE;
- }
-
- if(pinfo->osHandle == NULL)
- {
- /* New timer is created */
- memset(pinfo, 0, sizeof(pinfo));
-
- if(mode == APP_TIMER_MODE_SINGLE_SHOT)
- timer_mode = pdFALSE;
- else
- timer_mode = pdTRUE;
-
- pinfo->func = timeout_handler;
- pinfo->osHandle = xTimerCreate(" ", 1000, timer_mode, pinfo, app_timer_callback);
-
- if(pinfo->osHandle == NULL)
- err_code = NRF_ERROR_NULL;
- }
- else
- {
- /* Timer cannot be reinitialized using FreeRTOS API */
- return NRF_ERROR_INVALID_STATE;
- }
-
- return err_code;
-}
-
-
-uint32_t app_timer_start(app_timer_id_t timer_id, uint32_t timeout_ticks, void * p_context)
-{
- app_timer_info_t * pinfo = (app_timer_info_t*)(timer_id);
- TimerHandle_t hTimer = pinfo->osHandle;
- uint32_t rtc_prescaler = portNRF_RTC_REG->PRESCALER + 1;
- /* Get back the microseconds to wait */
- uint32_t timeout_corrected = ROUNDED_DIV(timeout_ticks*m_prescaler, rtc_prescaler);
-
- if(hTimer == NULL)
- {
- return NRF_ERROR_INVALID_STATE;
- }
- if(pinfo->active && (xTimerIsTimerActive(hTimer) != pdFALSE))
- {
- // Timer already running - exit silently
- return NRF_SUCCESS;
- }
-
- pinfo->argument = p_context;
-
- if(__get_IPSR() != 0)
- {
- BaseType_t yieldReq = pdFALSE;
- if(xTimerChangePeriodFromISR(hTimer, timeout_corrected, &yieldReq) != pdPASS)
- {
- return NRF_ERROR_NO_MEM;
- }
-
- if( xTimerStartFromISR(hTimer, &yieldReq) != pdPASS )
- {
- return NRF_ERROR_NO_MEM;
- }
-
- portYIELD_FROM_ISR(yieldReq);
- }
- else
- {
- if(xTimerChangePeriod(hTimer, timeout_corrected, APP_TIMER_WAIT_FOR_QUEUE) != pdPASS)
- {
- return NRF_ERROR_NO_MEM;
- }
-
- if(xTimerStart(hTimer, APP_TIMER_WAIT_FOR_QUEUE) != pdPASS)
- {
- return NRF_ERROR_NO_MEM;
- }
- }
-
- pinfo->active = true;
- return NRF_SUCCESS;
-}
-
-
-uint32_t app_timer_stop(app_timer_id_t timer_id)
-{
- app_timer_info_t * pinfo = (app_timer_info_t*)(timer_id);
- TimerHandle_t hTimer = pinfo->osHandle;
- if(hTimer == NULL)
- {
- return NRF_ERROR_INVALID_STATE;
- }
-
- if(__get_IPSR() != 0)
- {
- BaseType_t yieldReq = pdFALSE;
- if(xTimerStopFromISR(timer_id, &yieldReq) != pdPASS)
- {
- return NRF_ERROR_NO_MEM;
- }
- portYIELD_FROM_ISR(yieldReq);
- }
- else
- {
- if(xTimerStop(timer_id, APP_TIMER_WAIT_FOR_QUEUE) != pdPASS)
- {
- return NRF_ERROR_NO_MEM;
- }
- }
-
- pinfo->active = false;
- return NRF_SUCCESS;
-}
http://git-wip-us.apache.org/repos/asf/incubator-mynewt-core/blob/a1481cb2/hw/mcu/nordic/src/ext/nRF5_SDK_11.0.0_89a8197/components/libraries/trace/app_trace.c
----------------------------------------------------------------------
diff --git a/hw/mcu/nordic/src/ext/nRF5_SDK_11.0.0_89a8197/components/libraries/trace/app_trace.c b/hw/mcu/nordic/src/ext/nRF5_SDK_11.0.0_89a8197/components/libraries/trace/app_trace.c
deleted file mode 100644
index 2f510f8..0000000
--- a/hw/mcu/nordic/src/ext/nRF5_SDK_11.0.0_89a8197/components/libraries/trace/app_trace.c
+++ /dev/null
@@ -1,43 +0,0 @@
-/* Copyright (c) 2014 Nordic Semiconductor. All Rights Reserved.
- *
- * The information contained herein is property of Nordic Semiconductor ASA.
- * Terms and conditions of usage are described in detail in NORDIC
- * SEMICONDUCTOR STANDARD SOFTWARE LICENSE AGREEMENT.
- *
- * Licensees are granted free, non-transferable use of the information. NO
- * WARRANTY of ANY KIND is provided. This heading must NOT be removed from
- * the file.
- *
- */
-
-#include <stdio.h>
-#include <stdint.h>
-#include <string.h>
-#include <stdarg.h>
-
-
-#ifdef ENABLE_DEBUG_LOG_SUPPORT
-#include "app_trace.h"
-#include "nrf_log.h"
-
-void app_trace_init(void)
-{
- (void)NRF_LOG_INIT();
-}
-
-void app_trace_dump(uint8_t * p_buffer, uint32_t len)
-{
- app_trace_log("\r\n");
- for (uint32_t index = 0; index < len; index++)
- {
- app_trace_log("0x%02X ", p_buffer[index]);
- }
- app_trace_log("\r\n");
-}
-
-#endif // ENABLE_DEBUG_LOG_SUPPORT
-
-/**
- *@}
- **/
-
http://git-wip-us.apache.org/repos/asf/incubator-mynewt-core/blob/a1481cb2/hw/mcu/nordic/src/ext/nRF5_SDK_11.0.0_89a8197/components/libraries/twi/app_twi.c
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diff --git a/hw/mcu/nordic/src/ext/nRF5_SDK_11.0.0_89a8197/components/libraries/twi/app_twi.c b/hw/mcu/nordic/src/ext/nRF5_SDK_11.0.0_89a8197/components/libraries/twi/app_twi.c
deleted file mode 100644
index 9402d28..0000000
--- a/hw/mcu/nordic/src/ext/nRF5_SDK_11.0.0_89a8197/components/libraries/twi/app_twi.c
+++ /dev/null
@@ -1,376 +0,0 @@
-/* Copyright (c) 2015 Nordic Semiconductor. All Rights Reserved.
- *
- * The information contained herein is property of Nordic Semiconductor ASA.
- * Terms and conditions of usage are described in detail in NORDIC
- * SEMICONDUCTOR STANDARD SOFTWARE LICENSE AGREEMENT.
- *
- * Licensees are granted free, non-transferable use of the information. NO
- * WARRANTY of ANY KIND is provided. This heading must NOT be removed from
- * the file.
- *
- */
-
-#include "app_twi.h"
-#include "nrf_assert.h"
-#include "app_util_platform.h"
-#include "sdk_common.h"
-
-
-// Increase specified queue index and when it goes outside the queue move it
-// on the beginning of the queue.
-#define INCREASE_IDX(idx, p_queue) \
- do { \
- ++idx; \
- p_queue->idx = (idx > p_queue->size) ? 0 : idx; \
- } while (0)
-
-
-static bool queue_put(app_twi_queue_t * p_queue,
- app_twi_transaction_t const * p_transaction)
-{
- // [use a local variable to avoid using two volatile variables in one
- // expression]
- uint8_t write_idx = p_queue->write_idx;
-
- // If the queue is already full, we cannot put any more elements into it.
- if ((write_idx == p_queue->size && p_queue->read_idx == 0) ||
- write_idx == p_queue->read_idx-1)
- {
- return false;
- }
-
- // Write the new element on the position specified by the write index.
- p_queue->p_buffer[write_idx] = p_transaction;
- // Increase the write index and when it goes outside the queue move it
- // on the beginning.
- INCREASE_IDX(write_idx, p_queue);
-
- return true;
-}
-
-
-static app_twi_transaction_t const * queue_get(app_twi_queue_t * p_queue)
-{
- // [use a local variable to avoid using two volatile variables in one
- // expression]
- uint8_t read_idx = p_queue->read_idx;
-
- // If the queue is empty, we cannot return any more elements from it.
- if (read_idx == p_queue->write_idx)
- {
- return NULL;
- }
-
- // Read the element from the position specified by the read index.
- app_twi_transaction_t const * p_transaction = p_queue->p_buffer[read_idx];
- // Increase the read index and when it goes outside the queue move it
- // on the beginning.
- INCREASE_IDX(read_idx, p_queue);
-
- return p_transaction;
-}
-
-
-static ret_code_t start_transfer(app_twi_t * p_app_twi)
-{
- ASSERT(p_app_twi != NULL);
-
- // [use a local variable to avoid using two volatile variables in one
- // expression]
- uint8_t current_transfer_idx = p_app_twi->current_transfer_idx;
- app_twi_transfer_t const * p_transfer =
- &p_app_twi->p_current_transaction->p_transfers[current_transfer_idx];
- uint8_t address = APP_TWI_OP_ADDRESS(p_transfer->operation);
-
- nrf_drv_twi_xfer_desc_t xfer_desc;
- uint32_t flags;
-
- xfer_desc.address = address;
- xfer_desc.p_primary_buf = p_transfer->p_data;
- xfer_desc.primary_length = p_transfer->length;
-
- /* If it is possible try to bind two transfers together. They can be combined if:
- * - there is no stop condition after current transfer.
- * - current transfer is TX.
- * - there is at least one more transfer in the transaction.
- * - address of next trnasfer is the same as current transfer.
- */
- if ((p_transfer->flags & APP_TWI_NO_STOP) &&
- !APP_TWI_IS_READ_OP(p_transfer->operation) &&
- ((current_transfer_idx+1) < p_app_twi->p_current_transaction->number_of_transfers) &&
- APP_TWI_OP_ADDRESS(p_transfer->operation) ==
- APP_TWI_OP_ADDRESS(p_app_twi->p_current_transaction->p_transfers[current_transfer_idx+1].operation)
- )
- {
- app_twi_transfer_t const * p_second_transfer =
- &p_app_twi->p_current_transaction->p_transfers[current_transfer_idx+1];
- xfer_desc.p_secondary_buf = p_second_transfer->p_data;
- xfer_desc.secondary_length = p_second_transfer->length;
- xfer_desc.type = APP_TWI_IS_READ_OP(p_second_transfer->operation) ? NRF_DRV_TWI_XFER_TXRX :
- NRF_DRV_TWI_XFER_TXTX;
- flags = (p_second_transfer->flags & APP_TWI_NO_STOP) ? NRF_DRV_TWI_FLAG_TX_NO_STOP : 0;
- p_app_twi->current_transfer_idx++;
- }
- else
- {
- xfer_desc.type = APP_TWI_IS_READ_OP(p_transfer->operation) ? NRF_DRV_TWI_XFER_RX :
- NRF_DRV_TWI_XFER_TX;
- xfer_desc.p_secondary_buf = NULL;
- xfer_desc.secondary_length = 0;
- flags = (p_transfer->flags & APP_TWI_NO_STOP) ? NRF_DRV_TWI_FLAG_TX_NO_STOP : 0;
- }
-
- return nrf_drv_twi_xfer(&p_app_twi->twi, &xfer_desc, flags);
-}
-
-
-static void signal_end_of_transaction(app_twi_t const * p_app_twi,
- ret_code_t result)
-{
- ASSERT(p_app_twi != NULL);
-
- if (p_app_twi->p_current_transaction->callback)
- {
- // [use a local variable to avoid using two volatile variables in one
- // expression]
- void * p_user_data = p_app_twi->p_current_transaction->p_user_data;
- p_app_twi->p_current_transaction->callback(result, p_user_data);
- }
-}
-
-
-// This function starts pending transaction if there is no current one or
-// when 'switch_transaction' parameter is set to true. It is important to
-// switch to new transaction without setting 'p_app_twi->p_current_transaction'
-// to NULL in between, since this pointer is used to check idle status - see
-// 'app_twi_is_idle()'.
-static void start_pending_transaction(app_twi_t * p_app_twi,
- bool switch_transaction)
-{
- ASSERT(p_app_twi != NULL);
-
- for (;;)
- {
- bool start_transaction = false;
-
- CRITICAL_REGION_ENTER();
- if (switch_transaction || app_twi_is_idle(p_app_twi))
- {
- p_app_twi->p_current_transaction = queue_get(&p_app_twi->queue);
- if (p_app_twi->p_current_transaction != NULL)
- {
- start_transaction = true;
- }
- }
- CRITICAL_REGION_EXIT();
-
- if (!start_transaction)
- {
- return;
- }
- else
- {
- ret_code_t result;
-
- // Try to start first transfer for this new transaction.
- p_app_twi->current_transfer_idx = 0;
- result = start_transfer(p_app_twi);
-
- // If it started successfully there is nothing more to do here now.
- if (result == NRF_SUCCESS)
- {
- return;
- }
-
- // Transfer failed to start - notify user that this transaction
- // cannot be started and try with next one (in next iteration of
- // the loop).
- signal_end_of_transaction(p_app_twi, result);
-
- switch_transaction = true;
- }
- }
-}
-
-
-static void twi_event_handler(nrf_drv_twi_evt_t const * p_event,
- void * p_context)
-{
- ASSERT(p_event != NULL);
-
- app_twi_t * p_app_twi = (app_twi_t *)p_context;
- ret_code_t result;
-
- // This callback should be called only during transaction.
- ASSERT(p_app_twi->p_current_transaction != NULL);
-
- if (p_event->type == NRF_DRV_TWI_EVT_DONE)
- {
- result = NRF_SUCCESS;
-
- // Transfer finished successfully. If there is another one to be
- // performed in the current transaction, start it now.
- // [use a local variable to avoid using two volatile variables in one
- // expression]
- uint8_t current_transfer_idx = p_app_twi->current_transfer_idx;
- ++current_transfer_idx;
- if (current_transfer_idx <
- p_app_twi->p_current_transaction->number_of_transfers)
- {
- p_app_twi->current_transfer_idx = current_transfer_idx;
-
- result = start_transfer(p_app_twi);
-
- if (result == NRF_SUCCESS)
- {
- // The current transaction goes on and we've successfully
- // started its next transfer -> there is nothing more to do.
- return;
- }
-
- // [if the next transfer could not be started due to some error
- // we finish the transaction with this error code as the result]
- }
- }
- else
- {
- result = NRF_ERROR_INTERNAL;
- }
-
- // The current transaction has been completed or interrupted by some error.
- // Notify the user and start next one (if there is any).
- signal_end_of_transaction(p_app_twi, result);
- // [we switch transactions here ('p_app_twi->p_current_transaction' is set
- // to NULL only if there is nothing more to do) in order to not generate
- // spurious idle status (even for a moment)]
- start_pending_transaction(p_app_twi, true);
-}
-
-
-ret_code_t app_twi_init(app_twi_t * p_app_twi,
- nrf_drv_twi_config_t const * p_twi_config,
- uint8_t queue_size,
- app_twi_transaction_t const * * p_queue_buffer)
-{
- ASSERT(p_app_twi != NULL);
- ASSERT(queue_size != 0);
- ASSERT(p_queue_buffer != NULL);
-
- ret_code_t err_code;
-
- err_code = nrf_drv_twi_init(&p_app_twi->twi,
- p_twi_config,
- twi_event_handler,
- p_app_twi);
- VERIFY_SUCCESS(err_code);
-
- nrf_drv_twi_enable(&p_app_twi->twi);
-
- p_app_twi->queue.p_buffer = p_queue_buffer;
- p_app_twi->queue.size = queue_size;
- p_app_twi->queue.read_idx = 0;
- p_app_twi->queue.write_idx = 0;
-
- p_app_twi->internal_transaction_in_progress = false;
- p_app_twi->p_current_transaction = NULL;
-
- return NRF_SUCCESS;
-}
-
-
-void app_twi_uninit(app_twi_t * p_app_twi)
-{
- ASSERT(p_app_twi != NULL);
-
- nrf_drv_twi_uninit(&(p_app_twi->twi));
-
- p_app_twi->p_current_transaction = NULL;
-}
-
-
-ret_code_t app_twi_schedule(app_twi_t * p_app_twi,
- app_twi_transaction_t const * p_transaction)
-{
- ASSERT(p_app_twi != NULL);
- ASSERT(p_transaction != NULL);
- ASSERT(p_transaction->p_transfers != NULL);
- ASSERT(p_transaction->number_of_transfers != 0);
-
- ret_code_t result = NRF_SUCCESS;
-
- CRITICAL_REGION_ENTER();
- if (!queue_put(&p_app_twi->queue, p_transaction))
- {
- result = NRF_ERROR_BUSY;
- }
- CRITICAL_REGION_EXIT();
-
- if (result == NRF_SUCCESS)
- {
- // New transaction has been successfully added to queue,
- // so if we are currently idle it's time to start the job.
- start_pending_transaction(p_app_twi, false);
- }
-
- return result;
-}
-
-
-static void internal_transaction_cb(ret_code_t result, void * p_user_data)
-{
- app_twi_t * p_app_twi = (app_twi_t *)p_user_data;
-
- p_app_twi->internal_transaction_result = result;
- p_app_twi->internal_transaction_in_progress = false;
-}
-
-
-ret_code_t app_twi_perform(app_twi_t * p_app_twi,
- app_twi_transfer_t const * p_transfers,
- uint8_t number_of_transfers,
- void (* user_function)(void))
-{
- ASSERT(p_app_twi != NULL);
- ASSERT(p_transfers != NULL);
- ASSERT(number_of_transfers != 0);
-
- bool busy = false;
-
- CRITICAL_REGION_ENTER();
- if (p_app_twi->internal_transaction_in_progress)
- {
- busy = true;
- }
- else
- {
- p_app_twi->internal_transaction_in_progress = true;
- }
- CRITICAL_REGION_EXIT();
-
- if (busy)
- {
- return NRF_ERROR_BUSY;
- }
- else
- {
- app_twi_transaction_t internal_transaction =
- {
- .callback = internal_transaction_cb,
- .p_user_data = p_app_twi,
- .p_transfers = p_transfers,
- .number_of_transfers = number_of_transfers,
- };
- ret_code_t result = app_twi_schedule(p_app_twi, &internal_transaction);
- VERIFY_SUCCESS(result);
-
- while (p_app_twi->internal_transaction_in_progress)
- {
- if (user_function)
- {
- user_function();
- }
- }
-
- return p_app_twi->internal_transaction_result;
- }
-}
http://git-wip-us.apache.org/repos/asf/incubator-mynewt-core/blob/a1481cb2/hw/mcu/nordic/src/ext/nRF5_SDK_11.0.0_89a8197/components/libraries/twi/app_twi.h
----------------------------------------------------------------------
diff --git a/hw/mcu/nordic/src/ext/nRF5_SDK_11.0.0_89a8197/components/libraries/twi/app_twi.h b/hw/mcu/nordic/src/ext/nRF5_SDK_11.0.0_89a8197/components/libraries/twi/app_twi.h
deleted file mode 100644
index 65bbf45..0000000
--- a/hw/mcu/nordic/src/ext/nRF5_SDK_11.0.0_89a8197/components/libraries/twi/app_twi.h
+++ /dev/null
@@ -1,298 +0,0 @@
-/* Copyright (c) 2015 Nordic Semiconductor. All Rights Reserved.
- *
- * The information contained herein is property of Nordic Semiconductor ASA.
- * Terms and conditions of usage are described in detail in NORDIC
- * SEMICONDUCTOR STANDARD SOFTWARE LICENSE AGREEMENT.
- *
- * Licensees are granted free, non-transferable use of the information. NO
- * WARRANTY of ANY KIND is provided. This heading must NOT be removed from
- * the file.
- *
- */
-
-#ifndef APP_TWI_H__
-#define APP_TWI_H__
-
-#include <stdint.h>
-#include "nrf_drv_twi.h"
-#include "sdk_errors.h"
-
-#ifdef __cplusplus
-extern "C" {
-#endif
-
-/**
- * @defgroup app_twi TWI transaction manager
- * @{
- * @ingroup app_common
- *
- * @brief Module for scheduling TWI transactions.
- */
-
-/**
- * @brief Flag indicating that a given transfer should not be ended
- * with a stop condition.
- *
- * Use this flag when a stop condition is undesirable between two transfers,
- * for example, when the first transfer is a write that sets an address in the slave
- * device and the second one is a read that fetches certain data using this
- * address. In this case, the second transfer should follow directly after the
- * first transfer, with a repeated start condition instead of a stop and then
- * a new start condition.
- */
-#define APP_TWI_NO_STOP 0x01
-
-/**
- * @brief Macro for creating a write transfer.
- *
- * @param address Slave address.
- * @param[in] p_data Pointer to the data to be sent.
- * @param length Number of bytes to transfer.
- * @param flags Transfer flags (see @ref APP_TWI_NO_STOP).
- */
-#define APP_TWI_WRITE(address, p_data, length, flags) \
- APP_TWI_TRANSFER(APP_TWI_WRITE_OP(address), p_data, length, flags)
-
-/**
- * @brief Macro for creating a read transfer.
- *
- * @param address Slave address.
- * @param[in] p_data Pointer to the buffer where received data should be placed.
- * @param length Number of bytes to transfer.
- * @param flags Transfer flags (see @ref APP_TWI_NO_STOP).
- */
-#define APP_TWI_READ(address, p_data, length, flags) \
- APP_TWI_TRANSFER(APP_TWI_READ_OP(address), p_data, length, flags)
-
-/**
- * @brief Helper macro, should not be used directly.
- */
-#define APP_TWI_TRANSFER(_operation, _p_data, _length, _flags) \
-{ \
- .p_data = (uint8_t *)(_p_data), \
- .length = _length, \
- .operation = _operation, \
- .flags = _flags \
-}
-/**
- * @brief Helper macro, should not be used directly.
- */
-#define APP_TWI_WRITE_OP(address) (((address) << 1) | 0)
-/**
- * @brief Helper macro, should not be used directly.
- */
-#define APP_TWI_READ_OP(address) (((address) << 1) | 1)
-/**
- * @brief Helper macro, should not be used directly.
- */
-#define APP_TWI_IS_READ_OP(operation) ((operation) & 1)
-/**
- * @brief Helper macro, should not be used directly.
- */
-#define APP_TWI_OP_ADDRESS(operation) ((operation) >> 1)
-
-/**
- * @brief TWI transaction callback prototype.
- *
- * @param result Result of operation (NRF_SUCCESS on success,
- * otherwise a relevant error code).
- * @param[in] p_user_data Pointer to user data defined in transaction
- * descriptor.
- */
-typedef void (* app_twi_callback_t)(ret_code_t result, void * p_user_data);
-
-/**
- * @brief TWI transfer descriptor.
- */
-typedef struct {
- uint8_t * p_data; ///< Pointer to the buffer holding the data.
- uint8_t length; ///< Number of bytes to transfer.
- uint8_t operation; ///< Device address combined with transfer direction.
- uint8_t flags; ///< Transfer flags (see @ref APP_TWI_NO_STOP).
-} app_twi_transfer_t;
-
-/**
- * @brief TWI transaction descriptor.
- */
-typedef struct {
- app_twi_callback_t callback;
- ///< User-specified function to be called after the transaction is finished.
-
- void * p_user_data;
- ///< Pointer to user data to be passed to the callback.
-
- app_twi_transfer_t const * p_transfers;
- ///< Pointer to the array of transfers that make up the transaction.
-
- uint8_t number_of_transfers;
- ///< Number of transfers that make up the transaction.
-} app_twi_transaction_t;
-
-/**
- * @brief TWI transaction queue.
- */
-typedef struct {
- app_twi_transaction_t const * volatile * p_buffer;
- uint8_t size;
- uint8_t volatile read_idx;
- uint8_t volatile write_idx;
-} app_twi_queue_t;
-
-/**
- * @brief TWI transaction manager instance.
- */
-typedef struct {
- app_twi_queue_t queue;
- ///< Transaction queue.
-
- uint8_t volatile current_transfer_idx;
- ///< Index of currently performed transfer (within current transaction).
-
- bool volatile internal_transaction_in_progress;
- ///< Informs that an internal transaction is being performed (by app_twi_perform()).
-
- uint8_t volatile internal_transaction_result;
- ///< Used to pass the result of the internal transaction realized by app_twi_perform().
-
- app_twi_transaction_t const * volatile p_current_transaction;
- ///< Currently realized transaction.
-
- nrf_drv_twi_t const twi;
- ///< TWI master driver instance.
-} app_twi_t;
-
-/**
- * @brief Macro for creating an instance of the TWI transaction manager.
- *
- * @param[in] twi_idx Index of the TWI master driver instance to be utilized
- * by this manager instance.
- */
-#define APP_TWI_INSTANCE(twi_idx) \
-{ \
- .twi = NRF_DRV_TWI_INSTANCE(twi_idx) \
-}
-
-/**
- * @brief Macro that simplifies the initialization of a TWI transaction manager
- * instance.
- *
- * This macro allocates a static buffer for the transaction queue.
- * Therefore, it should be used in only one place in the code for a given
- * instance.
- *
- * @param[in] p_app_twi Pointer to the instance to be initialized.
- * @param[in] p_twi_config Pointer to the TWI master driver configuration.
- * @param queue_size Size of the transaction queue (maximum number
- * of pending transactions).
- * See @ref app_twi_init_note "this note".
- * @param[out] err_code The result of the app_twi_init() function call
- * is written to this parameter.
- */
-#define APP_TWI_INIT(p_app_twi, p_twi_config, queue_size, err_code) \
- do { \
- static app_twi_transaction_t const * queue_buffer[queue_size + 1]; \
- err_code = app_twi_init(p_app_twi, p_twi_config, \
- queue_size, queue_buffer); \
- } while (0)
-
-/**
- * @brief Function for initializing a TWI transaction manager instance.
- *
- * This function initializes the utilized TWI master driver instance and
- * prepares the transaction queue.
- *
- * @anchor app_twi_init_note
- * @note The queue size is the maximum number of pending transactions
- * not counting the one that is currently realized. This means that
- * for an empty queue with size of, for example, 4 elements, it is
- * possible to schedule up to 5 transactions.
- *
- * @param[in] p_app_twi Pointer to the instance to be initialized.
- * @param[in] p_twi_config Pointer to the TWI master driver configuration.
- * @param queue_size Size of the transaction queue (maximum number
- * of pending transactions).
- * @param[in] p_queue_buffer Pointer to a buffer for queued transactions
- * storage. Due to the queue implementation, the buffer must
- * be big enough to hold queue_size + 1 entries
- * (pointers to transaction descriptors).
- *
- * @retval NRF_SUCCESS If initialization was successful. Otherwise, the error code
- * returned by the nrf_drv_twi_init() function is returned.
- */
-ret_code_t app_twi_init(app_twi_t * p_app_twi,
- nrf_drv_twi_config_t const * p_twi_config,
- uint8_t queue_size,
- app_twi_transaction_t const * * p_queue_buffer);
-
-/**
- * @brief Function for uninitializing a TWI transaction manager instance.
- *
- * @param[in] p_app_twi Pointer to the instance to be uninitialized.
- */
-void app_twi_uninit(app_twi_t * p_app_twi);
-
-/**
- * @brief Function for scheduling a TWI transaction.
- *
- * The transaction is enqueued and started as soon as the TWI bus is
- * available, thus when all previously scheduled transactions have been
- * finished (possibly immediately).
- *
- * @param[in] p_app_twi Pointer to the TWI transaction manager instance.
- * @param[in] p_transaction Pointer to the descriptor of the transaction to be
- * scheduled.
- *
- * @retval NRF_SUCCESS If the transaction has been successfully scheduled.
- * @retval NRF_ERROR_BUSY If the limit of pending transactions has been reached
- * (the transaction queue is full).
- */
-ret_code_t app_twi_schedule(app_twi_t * p_app_twi,
- app_twi_transaction_t const * p_transaction);
-
-/**
- * @brief Function for scheduling a transaction and waiting until it is finished.
- *
- * This function schedules a transaction that consists of one or more transfers
- * and waits until it is finished.
- *
- * @param[in] p_app_twi Pointer to the TWI transaction manager instance.
- * @param[in] p_transfers Pointer to an array of transfers to be performed.
- * @param number_of_transfers Number of transfers to be performed.
- * @param user_function User-specified function to be called while
- * waiting. NULL if such functionality
- * is not needed.
- *
- * @retval NRF_SUCCESS If the transfers have been successfully realized.
- * @retval NRF_ERROR_BUSY If some transfers are already performed (if this function
- * was called from another context).
- * @retval - Other error codes mean that the transaction has ended
- * with the error that is specified in the error code.
- */
-ret_code_t app_twi_perform(app_twi_t * p_app_twi,
- app_twi_transfer_t const * p_transfers,
- uint8_t number_of_transfers,
- void (* user_function)(void));
-
-/**
- * @brief Function for getting the current state of a TWI transaction manager
- * instance.
- *
- * @param[in] p_app_twi Pointer to the TWI transaction manager instance.
- *
- * @retval true If all scheduled transactions have been finished.
- * @retval false Otherwise.
- */
-__STATIC_INLINE bool app_twi_is_idle(app_twi_t * p_app_twi)
-{
- return (p_app_twi->p_current_transaction == NULL);
-}
-
-/**
- *@}
- **/
-
-#ifdef __cplusplus
-}
-#endif
-
-#endif // APP_TWI_H__
http://git-wip-us.apache.org/repos/asf/incubator-mynewt-core/blob/a1481cb2/hw/mcu/nordic/src/ext/nRF5_SDK_11.0.0_89a8197/components/libraries/uart/app_uart.c
----------------------------------------------------------------------
diff --git a/hw/mcu/nordic/src/ext/nRF5_SDK_11.0.0_89a8197/components/libraries/uart/app_uart.c b/hw/mcu/nordic/src/ext/nRF5_SDK_11.0.0_89a8197/components/libraries/uart/app_uart.c
deleted file mode 100644
index 944ff21..0000000
--- a/hw/mcu/nordic/src/ext/nRF5_SDK_11.0.0_89a8197/components/libraries/uart/app_uart.c
+++ /dev/null
@@ -1,132 +0,0 @@
-/* Copyright (c) 2015 Nordic Semiconductor. All Rights Reserved.
- *
- * The information contained herein is property of Nordic Semiconductor ASA.
- * Terms and conditions of usage are described in detail in NORDIC
- * SEMICONDUCTOR STANDARD SOFTWARE LICENSE AGREEMENT.
- *
- * Licensees are granted free, non-transferable use of the information. NO
- * WARRANTY of ANY KIND is provided. This heading must NOT be removed from
- * the file.
- *
- */
-
-#include "app_uart.h"
-#include "nrf_drv_uart.h"
-#include "nrf_assert.h"
-#include "sdk_common.h"
-
-static uint8_t tx_buffer[1];
-static uint8_t rx_buffer[1];
-static volatile bool rx_done;
-static app_uart_event_handler_t m_event_handler; /**< Event handler function. */
-
-void uart_event_handler(nrf_drv_uart_event_t * p_event, void* p_context)
-{
- if (p_event->type == NRF_DRV_UART_EVT_RX_DONE)
- {
- app_uart_evt_t app_uart_event;
- app_uart_event.evt_type = APP_UART_DATA;
- app_uart_event.data.value = p_event->data.rxtx.p_data[0];
- (void)nrf_drv_uart_rx(rx_buffer,1);
- rx_done = true;
- m_event_handler(&app_uart_event);
- }
- else if (p_event->type == NRF_DRV_UART_EVT_ERROR)
- {
- app_uart_evt_t app_uart_event;
- app_uart_event.evt_type = APP_UART_COMMUNICATION_ERROR;
- app_uart_event.data.error_communication = p_event->data.error.error_mask;
- (void)nrf_drv_uart_rx(rx_buffer,1);
- m_event_handler(&app_uart_event);
- }
- else if (p_event->type == NRF_DRV_UART_EVT_TX_DONE)
- {
- // Last byte from FIFO transmitted, notify the application.
- // Notify that new data is available if this was first byte put in the buffer.
- app_uart_evt_t app_uart_event;
- app_uart_event.evt_type = APP_UART_TX_EMPTY;
- m_event_handler(&app_uart_event);
- }
-}
-
-uint32_t app_uart_init(const app_uart_comm_params_t * p_comm_params,
- app_uart_buffers_t * p_buffers,
- app_uart_event_handler_t event_handler,
- app_irq_priority_t irq_priority)
-{
- nrf_drv_uart_config_t config = NRF_DRV_UART_DEFAULT_CONFIG;
- config.baudrate = (nrf_uart_baudrate_t)p_comm_params->baud_rate;
- config.hwfc = (p_comm_params->flow_control == APP_UART_FLOW_CONTROL_DISABLED) ?
- NRF_UART_HWFC_DISABLED : NRF_UART_HWFC_ENABLED;
- config.interrupt_priority = irq_priority;
- config.parity = p_comm_params->use_parity ? NRF_UART_PARITY_INCLUDED : NRF_UART_PARITY_EXCLUDED;
- config.pselcts = p_comm_params->cts_pin_no;
- config.pselrts = p_comm_params->rts_pin_no;
- config.pselrxd = p_comm_params->rx_pin_no;
- config.pseltxd = p_comm_params->tx_pin_no;
-
- m_event_handler = event_handler;
-
- rx_done = false;
-
- if (p_comm_params->flow_control == APP_UART_FLOW_CONTROL_LOW_POWER)
- {
- return NRF_ERROR_NOT_SUPPORTED;
- }
-
- uint32_t err_code = nrf_drv_uart_init(&config, uart_event_handler);
- VERIFY_SUCCESS(err_code);
-
-#ifdef NRF52
- if (!config.use_easy_dma)
-#endif
- {
- nrf_drv_uart_rx_enable();
- }
- return nrf_drv_uart_rx(rx_buffer,1);
-}
-
-
-uint32_t app_uart_get(uint8_t * p_byte)
-{
- ASSERT(p_byte);
- uint32_t err_code = NRF_SUCCESS;
- if (rx_done)
- {
- *p_byte = rx_buffer[0];
- }
- else
- {
- err_code = NRF_ERROR_NOT_FOUND;
- }
- return err_code;
-}
-
-uint32_t app_uart_put(uint8_t byte)
-{
- tx_buffer[0] = byte;
- ret_code_t ret = nrf_drv_uart_tx(tx_buffer,1);
- if (NRF_ERROR_BUSY == ret)
- {
- return NRF_ERROR_NO_MEM;
- }
- else if (ret != NRF_SUCCESS)
- {
- return NRF_ERROR_INTERNAL;
- }
- else
- {
- return NRF_SUCCESS;
- }
-}
-
-uint32_t app_uart_flush(void)
-{
- return NRF_SUCCESS;
-}
-
-uint32_t app_uart_close(void)
-{
- nrf_drv_uart_uninit();
- return NRF_SUCCESS;
-}