simmel-bootloader/softdevice/6.0.0/common/nrf_sdh.c

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2018-04-02 07:59:19 +00:00
/**
* Copyright (c) 2017 - 2018, Nordic Semiconductor ASA
*
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without modification,
* are permitted provided that the following conditions are met:
*
* 1. Redistributions of source code must retain the above copyright notice, this
* list of conditions and the following disclaimer.
*
* 2. Redistributions in binary form, except as embedded into a Nordic
* Semiconductor ASA integrated circuit in a product or a software update for
* such product, must reproduce the above copyright notice, this list of
* conditions and the following disclaimer in the documentation and/or other
* materials provided with the distribution.
*
* 3. Neither the name of Nordic Semiconductor ASA nor the names of its
* contributors may be used to endorse or promote products derived from this
* software without specific prior written permission.
*
* 4. This software, with or without modification, must only be used with a
* Nordic Semiconductor ASA integrated circuit.
*
* 5. Any software provided in binary form under this license must not be reverse
* engineered, decompiled, modified and/or disassembled.
*
* THIS SOFTWARE IS PROVIDED BY NORDIC SEMICONDUCTOR ASA "AS IS" AND ANY EXPRESS
* OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
* OF MERCHANTABILITY, NONINFRINGEMENT, AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL NORDIC SEMICONDUCTOR ASA OR CONTRIBUTORS BE
* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE
* GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
* OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*
*/
#include "sdk_common.h"
#if NRF_MODULE_ENABLED(NRF_SDH)
#include "nrf_sdh.h"
#include <stdint.h>
#include "nrf_sdm.h"
#include "nrf_nvic.h"
#include "sdk_config.h"
#include "app_error.h"
#include "app_util_platform.h"
#define NRF_LOG_MODULE_NAME nrf_sdh
#if NRF_SDH_LOG_ENABLED
#define NRF_LOG_LEVEL NRF_SDH_LOG_LEVEL
#define NRF_LOG_INFO_COLOR NRF_SDH_INFO_COLOR
#define NRF_LOG_DEBUG_COLOR NRF_SDH_DEBUG_COLOR
#else
#define NRF_LOG_LEVEL 0
#endif // NRF_SDH_LOG_ENABLED
#include "nrf_log.h"
NRF_LOG_MODULE_REGISTER();
// Validate configuration options.
#if (NRF_SDH_DISPATCH_MODEL == NRF_SDH_DISPATCH_MODEL_APPSH)
#if (!APP_SCHEDULER_ENABLED)
#error app_scheduler is required when NRF_SDH_DISPATCH_MODEL is set to NRF_SDH_DISPATCH_MODEL_APPSH
#endif
#include "app_scheduler.h"
#endif
#if ( (NRF_SDH_CLOCK_LF_SRC == NRF_CLOCK_LF_SRC_RC) \
&& (NRF_SDH_CLOCK_LF_ACCURACY != NRF_CLOCK_LF_ACCURACY_500_PPM))
#warning Please select NRF_CLOCK_LF_ACCURACY_500_PPM when using NRF_CLOCK_LF_SRC_RC
#endif
// Create section "sdh_req_observers".
NRF_SECTION_SET_DEF(sdh_req_observers, nrf_sdh_req_observer_t, NRF_SDH_REQ_OBSERVER_PRIO_LEVELS);
// Create section "sdh_state_observers".
NRF_SECTION_SET_DEF(sdh_state_observers, nrf_sdh_state_observer_t, NRF_SDH_STATE_OBSERVER_PRIO_LEVELS);
// Create section "sdh_stack_observers".
NRF_SECTION_SET_DEF(sdh_stack_observers, nrf_sdh_stack_observer_t, NRF_SDH_STACK_OBSERVER_PRIO_LEVELS);
static bool m_nrf_sdh_enabled; /**< Variable to indicate whether the SoftDevice is enabled. */
static bool m_nrf_sdh_suspended; /**< Variable to indicate whether this module is suspended. */
static bool m_nrf_sdh_continue; /**< Variable to indicate whether enable/disable process was started. */
/**@brief Function for notifying request observers.
*
* @param[in] evt Type of request event.
*/
static ret_code_t sdh_request_observer_notify(nrf_sdh_req_evt_t req)
{
nrf_section_iter_t iter;
NRF_LOG_DEBUG("State request: 0x%08X", req);
for (nrf_section_iter_init(&iter, &sdh_req_observers);
nrf_section_iter_get(&iter) != NULL;
nrf_section_iter_next(&iter))
{
nrf_sdh_req_observer_t * p_observer;
nrf_sdh_req_evt_handler_t handler;
p_observer = (nrf_sdh_req_observer_t *) nrf_section_iter_get(&iter);
handler = p_observer->handler;
if (handler(req, p_observer->p_context))
{
NRF_LOG_DEBUG("Notify observer 0x%08X => ready", p_observer);
}
else
{
// Process is stopped.
NRF_LOG_DEBUG("Notify observer 0x%08X => blocking", p_observer);
return NRF_ERROR_BUSY;
}
}
return NRF_SUCCESS;
}
/**@brief Function for stage request observers.
*
* @param[in] evt Type of stage event.
*/
static void sdh_state_observer_notify(nrf_sdh_state_evt_t evt)
{
nrf_section_iter_t iter;
NRF_LOG_DEBUG("State change: 0x%08X", evt);
for (nrf_section_iter_init(&iter, &sdh_state_observers);
nrf_section_iter_get(&iter) != NULL;
nrf_section_iter_next(&iter))
{
nrf_sdh_state_observer_t * p_observer;
nrf_sdh_state_evt_handler_t handler;
p_observer = (nrf_sdh_state_observer_t *) nrf_section_iter_get(&iter);
handler = p_observer->handler;
handler(evt, p_observer->p_context);
}
}
static void softdevices_evt_irq_enable(void)
{
#ifdef SOFTDEVICE_PRESENT
ret_code_t ret_code = sd_nvic_EnableIRQ((IRQn_Type)SD_EVT_IRQn);
APP_ERROR_CHECK(ret_code);
#else
// In case of serialization, NVIC must be accessed directly.
NVIC_EnableIRQ(SD_EVT_IRQn);
#endif
}
static void softdevice_evt_irq_disable(void)
{
#ifdef SOFTDEVICE_PRESENT
ret_code_t ret_code = sd_nvic_DisableIRQ((IRQn_Type)SD_EVT_IRQn);
APP_ERROR_CHECK(ret_code);
#else
// In case of serialization, NVIC must be accessed directly.
NVIC_DisableIRQ(SD_EVT_IRQn);
#endif
}
#ifndef S140
static void swi_interrupt_priority_workaround(void)
{
// The priority of SoftDevice SWI SD_EVT_IRQn and RADIO_NOTIFICATION_IRQn in
// S132 v5.0.0, S112 v5.0.0, S212 v5.0.0 and S332 v5.0.0 is set to 6.
// Change it to APP_IRQ_PRIORITY_LOWEST (7) so that they do not preempt peripherals' interrupts.
#ifdef SOFTDEVICE_PRESENT
ret_code_t ret_code;
ret_code = sd_nvic_SetPriority(SD_EVT_IRQn, APP_IRQ_PRIORITY_LOWEST);
APP_ERROR_CHECK(ret_code);
ret_code = sd_nvic_SetPriority(RADIO_NOTIFICATION_IRQn, APP_IRQ_PRIORITY_LOWEST);
APP_ERROR_CHECK(ret_code);
#else
// In case of serialization, NVIC must be accessed directly.
NVIC_SetPriority(SD_EVT_IRQn, APP_IRQ_PRIORITY_LOWEST);
NVIC_SetPriority(RADIO_NOTIFICATION_IRQn, APP_IRQ_PRIORITY_LOWEST);
#endif
}
#endif
ret_code_t nrf_sdh_enable_request(void)
{
ret_code_t ret_code;
if (m_nrf_sdh_enabled)
{
return NRF_ERROR_INVALID_STATE;
}
m_nrf_sdh_continue = true;
// Notify observers about SoftDevice enable request.
if (sdh_request_observer_notify(NRF_SDH_EVT_ENABLE_REQUEST) == NRF_ERROR_BUSY)
{
// Enable process was stopped.
return NRF_SUCCESS;
}
// Notify observers about starting SoftDevice enable process.
sdh_state_observer_notify(NRF_SDH_EVT_STATE_ENABLE_PREPARE);
nrf_clock_lf_cfg_t const clock_lf_cfg =
{
.source = NRF_SDH_CLOCK_LF_SRC,
.rc_ctiv = NRF_SDH_CLOCK_LF_RC_CTIV,
.rc_temp_ctiv = NRF_SDH_CLOCK_LF_RC_TEMP_CTIV,
.accuracy = NRF_SDH_CLOCK_LF_ACCURACY
};
CRITICAL_REGION_ENTER();
#ifdef ANT_LICENSE_KEY
ret_code = sd_softdevice_enable(&clock_lf_cfg, app_error_fault_handler, ANT_LICENSE_KEY);
#else
ret_code = sd_softdevice_enable(&clock_lf_cfg, app_error_fault_handler);
#endif
m_nrf_sdh_enabled = (ret_code == NRF_SUCCESS);
CRITICAL_REGION_EXIT();
if (ret_code != NRF_SUCCESS)
{
return ret_code;
}
m_nrf_sdh_continue = false;
m_nrf_sdh_suspended = false;
#ifndef S140
// Set the interrupt priority after enabling the SoftDevice, since
// sd_softdevice_enable() sets the SoftDevice interrupt priority.
swi_interrupt_priority_workaround();
#endif
// Enable event interrupt.
// Interrupt priority has already been set by the stack.
softdevices_evt_irq_enable();
// Notify observers about a finished SoftDevice enable process.
sdh_state_observer_notify(NRF_SDH_EVT_STATE_ENABLED);
return NRF_SUCCESS;
}
ret_code_t nrf_sdh_disable_request(void)
{
ret_code_t ret_code;
if (!m_nrf_sdh_enabled)
{
return NRF_ERROR_INVALID_STATE;
}
m_nrf_sdh_continue = true;
// Notify observers about SoftDevice disable request.
if (sdh_request_observer_notify(NRF_SDH_EVT_DISABLE_REQUEST) == NRF_ERROR_BUSY)
{
// Disable process was stopped.
return NRF_SUCCESS;
}
// Notify observers about starting SoftDevice disable process.
sdh_state_observer_notify(NRF_SDH_EVT_STATE_DISABLE_PREPARE);
CRITICAL_REGION_ENTER();
ret_code = sd_softdevice_disable();
m_nrf_sdh_enabled = false;
CRITICAL_REGION_EXIT();
if (ret_code != NRF_SUCCESS)
{
return ret_code;
}
m_nrf_sdh_continue = false;
softdevice_evt_irq_disable();
// Notify observers about a finished SoftDevice enable process.
sdh_state_observer_notify(NRF_SDH_EVT_STATE_DISABLED);
return NRF_SUCCESS;
}
ret_code_t nrf_sdh_request_continue(void)
{
if (!m_nrf_sdh_continue)
{
return NRF_ERROR_INVALID_STATE;
}
if (m_nrf_sdh_enabled)
{
return nrf_sdh_disable_request();
}
else
{
return nrf_sdh_enable_request();
}
}
bool nrf_sdh_is_enabled(void)
{
return m_nrf_sdh_enabled;
}
void nrf_sdh_suspend(void)
{
if (!m_nrf_sdh_enabled)
{
return;
}
softdevice_evt_irq_disable();
m_nrf_sdh_suspended = true;
}
void nrf_sdh_resume(void)
{
if ((!m_nrf_sdh_suspended) || (!m_nrf_sdh_enabled))
{
return;
}
// Force calling ISR again to make sure that events not previously pulled have been processed.
#ifdef SOFTDEVICE_PRESENT
ret_code_t ret_code = sd_nvic_SetPendingIRQ((IRQn_Type)SD_EVT_IRQn);
APP_ERROR_CHECK(ret_code);
#else
NVIC_SetPendingIRQ((IRQn_Type)SD_EVT_IRQn);
#endif
softdevices_evt_irq_enable();
m_nrf_sdh_suspended = false;
}
bool nrf_sdh_is_suspended(void)
{
return (!m_nrf_sdh_enabled) || (m_nrf_sdh_suspended);
}
void nrf_sdh_evts_poll(void)
{
nrf_section_iter_t iter;
// Notify observers about pending SoftDevice event.
for (nrf_section_iter_init(&iter, &sdh_stack_observers);
nrf_section_iter_get(&iter) != NULL;
nrf_section_iter_next(&iter))
{
nrf_sdh_stack_observer_t * p_observer;
nrf_sdh_stack_evt_handler_t handler;
p_observer = (nrf_sdh_stack_observer_t *) nrf_section_iter_get(&iter);
handler = p_observer->handler;
handler(p_observer->p_context);
}
}
#if (NRF_SDH_DISPATCH_MODEL == NRF_SDH_DISPATCH_MODEL_INTERRUPT)
void SD_EVT_IRQHandler(void)
{
nrf_sdh_evts_poll();
}
#elif (NRF_SDH_DISPATCH_MODEL == NRF_SDH_DISPATCH_MODEL_APPSH)
/**@brief Function for polling SoftDevice events.
*
* @note This function is compatible with @ref app_sched_event_handler_t.
*
* @param[in] p_event_data Pointer to the event data.
* @param[in] event_size Size of the event data.
*/
static void appsh_events_poll(void * p_event_data, uint16_t event_size)
{
UNUSED_PARAMETER(p_event_data);
UNUSED_PARAMETER(event_size);
nrf_sdh_evts_poll();
}
void SD_EVT_IRQHandler(void)
{
ret_code_t ret_code = app_sched_event_put(NULL, 0, appsh_events_poll);
APP_ERROR_CHECK(ret_code);
}
#elif (NRF_SDH_DISPATCH_MODEL == NRF_SDH_DISPATCH_MODEL_POLLING)
#else
#error "Unknown SoftDevice handler dispatch model."
#endif // NRF_SDH_DISPATCH_MODEL
#endif // NRF_MODULE_ENABLED(NRF_SDH)