mirror of
https://github.com/espressif/esp-idf.git
synced 2024-10-05 20:47:46 -04:00
113 lines
3.4 KiB
C
113 lines
3.4 KiB
C
// Copyright 2020 Espressif Systems (Shanghai) PTE LTD
|
|
//
|
|
// Licensed under the Apache License, Version 2.0 (the "License");
|
|
// you may not use this file except in compliance with the License.
|
|
// You may obtain a copy of the License at
|
|
//
|
|
// http://www.apache.org/licenses/LICENSE-2.0
|
|
//
|
|
// Unless required by applicable law or agreed to in writing, software
|
|
// distributed under the License is distributed on an "AS IS" BASIS,
|
|
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
|
// See the License for the specific language governing permissions and
|
|
// limitations under the License.
|
|
|
|
#include "freertos/FreeRTOS.h"
|
|
#include "soc/periph_defs.h"
|
|
#include "soc/soc_memory_layout.h"
|
|
#include "soc/soc_caps.h"
|
|
#include "hal/gdma_ll.h"
|
|
#include "hal/gdma_hal.h"
|
|
#include "driver/periph_ctrl.h"
|
|
#include "esp_log.h"
|
|
#include "esp_attr.h"
|
|
#include "esp_err.h"
|
|
#include "esp_async_memcpy_impl.h"
|
|
|
|
IRAM_ATTR static bool async_memcpy_impl_rx_eof_callback(gdma_channel_handle_t dma_chan, gdma_event_data_t *event_data, void *user_data)
|
|
{
|
|
async_memcpy_impl_t *mcp_impl = (async_memcpy_impl_t *)user_data;
|
|
mcp_impl->rx_eof_addr = event_data->rx_eof_desc_addr;
|
|
|
|
async_memcpy_isr_on_rx_done_event(mcp_impl);
|
|
return mcp_impl->isr_need_yield;
|
|
}
|
|
|
|
esp_err_t async_memcpy_impl_init(async_memcpy_impl_t *impl)
|
|
{
|
|
esp_err_t ret = ESP_OK;
|
|
// create TX channel and reserve sibling channel for future use
|
|
gdma_channel_alloc_config_t tx_alloc_config = {
|
|
.flags.reserve_sibling = 1,
|
|
.direction = GDMA_CHANNEL_DIRECTION_TX,
|
|
};
|
|
ret = gdma_new_channel(&tx_alloc_config, &impl->tx_channel);
|
|
if (ret != ESP_OK) {
|
|
goto err;
|
|
}
|
|
|
|
// create RX channel and specify it should be reside in the same pair as TX
|
|
gdma_channel_alloc_config_t rx_alloc_config = {
|
|
.direction = GDMA_CHANNEL_DIRECTION_RX,
|
|
.sibling_chan = impl->tx_channel,
|
|
};
|
|
ret = gdma_new_channel(&rx_alloc_config, &impl->rx_channel);
|
|
if (ret != ESP_OK) {
|
|
goto err;
|
|
}
|
|
|
|
gdma_connect(impl->rx_channel, GDMA_MAKE_TRIGGER(GDMA_TRIG_PERIPH_M2M, 0));
|
|
gdma_connect(impl->tx_channel, GDMA_MAKE_TRIGGER(GDMA_TRIG_PERIPH_M2M, 0));
|
|
|
|
gdma_strategy_config_t strategy_config = {
|
|
.auto_update_desc = true,
|
|
.owner_check = true
|
|
};
|
|
|
|
gdma_apply_strategy(impl->tx_channel, &strategy_config);
|
|
gdma_apply_strategy(impl->rx_channel, &strategy_config);
|
|
|
|
gdma_rx_event_callbacks_t cbs = {
|
|
.on_recv_eof = async_memcpy_impl_rx_eof_callback
|
|
};
|
|
ret = gdma_register_rx_event_callbacks(impl->rx_channel, &cbs, impl);
|
|
|
|
err:
|
|
return ret;
|
|
}
|
|
|
|
esp_err_t async_memcpy_impl_deinit(async_memcpy_impl_t *impl)
|
|
{
|
|
gdma_disconnect(impl->rx_channel);
|
|
gdma_disconnect(impl->tx_channel);
|
|
gdma_del_channel(impl->rx_channel);
|
|
gdma_del_channel(impl->tx_channel);
|
|
return ESP_OK;
|
|
}
|
|
|
|
esp_err_t async_memcpy_impl_start(async_memcpy_impl_t *impl, intptr_t outlink_base, intptr_t inlink_base)
|
|
{
|
|
gdma_start(impl->rx_channel, inlink_base);
|
|
gdma_start(impl->tx_channel, outlink_base);
|
|
return ESP_OK;
|
|
}
|
|
|
|
esp_err_t async_memcpy_impl_stop(async_memcpy_impl_t *impl)
|
|
{
|
|
gdma_stop(impl->rx_channel);
|
|
gdma_stop(impl->tx_channel);
|
|
return ESP_OK;
|
|
}
|
|
|
|
esp_err_t async_memcpy_impl_restart(async_memcpy_impl_t *impl)
|
|
{
|
|
gdma_append(impl->rx_channel);
|
|
gdma_append(impl->tx_channel);
|
|
return ESP_OK;
|
|
}
|
|
|
|
bool async_memcpy_impl_is_buffer_address_valid(async_memcpy_impl_t *impl, void *src, void *dst)
|
|
{
|
|
return true;
|
|
}
|