uint32_t nrf_drv_ppi_channel_fork_assign(nrf_ppi_channel_t channel, uint32_t fork_tep)
{
ret_code_t err_code = NRF_SUCCESS;
#ifdef PPI_FEATURE_FORKS_PRESENT
if (!is_programmable_app_channel(channel))
{
err_code = NRF_ERROR_INVALID_PARAM;
}
else if (!is_allocated_channel(channel))
{
err_code = NRF_ERROR_INVALID_STATE;
}
else
{
nrf_ppi_fork_endpoint_setup(channel, fork_tep);
NRF_LOG_INFO("Fork assigned channel: %d, task end point: %d.\r\n", channel, fork_tep);
}
NRF_LOG_INFO("Function: %s, error code: %s.\r\n", (uint32_t)__func__, (uint32_t)ERR_TO_STR(err_code));
return err_code;
#else
err_code = NRF_ERROR_NOT_SUPPORTED;
NRF_LOG_WARNING("Function: %s, error code: %s.\r\n", (uint32_t)__func__, (uint32_t)ERR_TO_STR(err_code));
return err_code;
#endif
}
uint32_t nrf_drv_ppi_channel_alloc(nrf_ppi_channel_t * p_channel)
{
uint32_t err_code = NRF_SUCCESS;
nrf_ppi_channel_t channel;
uint32_t mask = 0;
err_code = NRF_ERROR_NO_MEM;
mask = NRF_PPI_PROG_APP_CHANNELS_MASK;
for (channel = NRF_PPI_CHANNEL0; mask != 0; mask &= ~nrf_drv_ppi_channel_to_mask(channel), channel++)
{
CRITICAL_REGION_ENTER();
if ((mask & nrf_drv_ppi_channel_to_mask(channel)) && (!is_allocated_channel(channel)))
{
channel_allocated_set(channel);
*p_channel = channel;
err_code = NRF_SUCCESS;
}
CRITICAL_REGION_EXIT();
if (err_code == NRF_SUCCESS)
{
NRF_LOG_INFO("Allocated channel: %d.\r\n", channel);
break;
}
}
NRF_LOG_INFO("Function: %s, error code: %s.\r\n", (uint32_t)__func__, (uint32_t)ERR_TO_STR(err_code));
return err_code;
}
uint32_t nrf_drv_ppi_channel_alloc(nrf_ppi_channel_t * p_channel)
{
uint32_t err_code;
nrf_ppi_channel_t channel;
uint32_t mask = 0;
err_code = NRF_ERROR_NO_MEM;
mask = NRF_PPI_PROG_APP_CHANNELS_MASK;
for (channel = NRF_PPI_CHANNEL0; mask != 0; mask &= ~nrf_drv_ppi_channel_to_mask(channel), channel++)
{
CRITICAL_REGION_ENTER();
if ((mask & nrf_drv_ppi_channel_to_mask(channel)) && (!is_allocated_channel(channel)))
{
channel_allocated_set(channel);
*p_channel = channel;
err_code = NRF_SUCCESS;
}
CRITICAL_REGION_EXIT();
if (err_code == NRF_SUCCESS)
{
break;
}
}
return err_code;
}
uint32_t nrf_drv_ppi_channel_assign(nrf_ppi_channel_t channel, uint32_t eep, uint32_t tep)
{
uint32_t err_code;
if (((uint32_t *)eep == NULL) || ((uint32_t *)tep == NULL))
{
err_code = NRF_ERROR_NULL;
}
else if (!is_programmable_app_channel(channel))
{
err_code = NRF_ERROR_INVALID_PARAM;
}
else if (!is_allocated_channel(channel))
{
err_code = NRF_ERROR_INVALID_STATE;
}
else
{
#if (NRF_PPI_RESTRICTED > 0)
err_code = sd_ppi_channel_assign((uint8_t) channel, (const volatile void *) eep, (const volatile void *) tep);
if (err_code != NRF_SUCCESS)
{
err_code = NRF_ERROR_INVALID_PARAM;
}
#else
nrf_ppi_channel_endpoint_setup(channel, eep, tep);
err_code = NRF_SUCCESS;
#endif
}
return err_code;
}
uint32_t nrf_drv_ppi_channel_disable(nrf_ppi_channel_t channel)
{
if (!is_app_channel(channel))
{
return NRF_ERROR_INVALID_PARAM;
}
if (is_programmable_app_channel(channel) && !is_allocated_channel(channel))
{
return NRF_ERROR_INVALID_STATE;
}
nrf_ppi_channel_disable(channel);
return NRF_SUCCESS;
}
uint32_t nrf_drv_ppi_channel_assign(nrf_ppi_channel_t channel, uint32_t eep, uint32_t tep)
{
if (((uint32_t *)eep == NULL) || ((uint32_t *)tep == NULL))
{
return NRF_ERROR_NULL;
}
if (!is_programmable_app_channel(channel))
{
return NRF_ERROR_INVALID_PARAM;
}
if (!is_allocated_channel(channel))
{
return NRF_ERROR_INVALID_STATE;
}
nrf_ppi_channel_endpoint_setup(channel, eep, tep);
return NRF_SUCCESS;
}
uint32_t nrf_drv_ppi_channel_enable(nrf_ppi_channel_t channel)
{
ret_code_t err_code = NRF_SUCCESS;
if (!is_app_channel(channel))
{
err_code = NRF_ERROR_INVALID_PARAM;
}
else if (is_programmable_app_channel(channel) && !is_allocated_channel(channel))
{
err_code = NRF_ERROR_INVALID_STATE;
}
else
{
nrf_ppi_channel_enable(channel);
}
NRF_LOG_INFO("Function: %s, error code: %s.\r\n", (uint32_t)__func__, (uint32_t)ERR_TO_STR(err_code));
return err_code;
}
uint32_t nrf_drv_ppi_channel_assign(nrf_ppi_channel_t channel, uint32_t eep, uint32_t tep)
{
VERIFY_PARAM_NOT_NULL((uint32_t *)eep);
VERIFY_PARAM_NOT_NULL((uint32_t *)tep);
ret_code_t err_code = NRF_SUCCESS;
if (!is_programmable_app_channel(channel))
{
err_code = NRF_ERROR_INVALID_PARAM;
}
else if (!is_allocated_channel(channel))
{
err_code = NRF_ERROR_INVALID_STATE;
}
else
{
nrf_ppi_channel_endpoint_setup(channel, eep, tep);
NRF_LOG_INFO("Assigned channel: %d, event end point: %x, task end point: %x.\r\n", channel, eep, tep);
}
NRF_LOG_INFO("Function: %s, error code: %s.\r\n", (uint32_t)__func__, (uint32_t)ERR_TO_STR(err_code));
return err_code;
}
uint32_t nrf_drv_ppi_channel_disable(nrf_ppi_channel_t channel)
{
uint32_t err_code;
if (!is_app_channel(channel))
{
err_code = NRF_ERROR_INVALID_PARAM;
}
else if (is_programmable_app_channel(channel) && !is_allocated_channel(channel))
{
err_code = NRF_ERROR_INVALID_STATE;
}
else
{
#if (NRF_PPI_RESTRICTED > 0)
err_code = sd_ppi_channel_enable_clr(channel_to_mask(channel));
#else
nrf_ppi_channel_disable(channel);
err_code = NRF_SUCCESS;
#endif
}
return err_code;
}