kopia lustrzana https://github.com/espressif/esp-idf
154 wiersze
4.8 KiB
C
154 wiersze
4.8 KiB
C
/*
|
|
* SPDX-FileCopyrightText: 2020-2021 Espressif Systems (Shanghai) CO LTD
|
|
*
|
|
* SPDX-License-Identifier: Apache-2.0
|
|
*/
|
|
|
|
#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 "esp_private/periph_ctrl.h"
|
|
#include "esp_log.h"
|
|
#include "esp_attr.h"
|
|
#include "esp_err.h"
|
|
#include "esp_async_memcpy_impl.h"
|
|
#if SOC_APM_SUPPORTED
|
|
#include "hal/apm_ll.h"
|
|
#endif
|
|
|
|
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_trigger_t m2m_trigger = GDMA_MAKE_TRIGGER(GDMA_TRIG_PERIPH_M2M, 0);
|
|
// get a free DMA trigger ID for memory copy
|
|
uint32_t free_m2m_id_mask = 0;
|
|
gdma_get_free_m2m_trig_id_mask(impl->tx_channel, &free_m2m_id_mask);
|
|
m2m_trigger.instance_id = __builtin_ctz(free_m2m_id_mask);
|
|
gdma_connect(impl->rx_channel, m2m_trigger);
|
|
gdma_connect(impl->tx_channel, m2m_trigger);
|
|
|
|
gdma_strategy_config_t strategy_config = {
|
|
.auto_update_desc = true,
|
|
.owner_check = true,
|
|
};
|
|
|
|
gdma_transfer_ability_t transfer_ability = {
|
|
.sram_trans_align = impl->sram_trans_align,
|
|
.psram_trans_align = impl->psram_trans_align,
|
|
};
|
|
ret = gdma_set_transfer_ability(impl->tx_channel, &transfer_ability);
|
|
if (ret != ESP_OK) {
|
|
goto err;
|
|
}
|
|
ret = gdma_set_transfer_ability(impl->rx_channel, &transfer_ability);
|
|
if (ret != ESP_OK) {
|
|
goto err;
|
|
}
|
|
gdma_apply_strategy(impl->tx_channel, &strategy_config);
|
|
gdma_apply_strategy(impl->rx_channel, &strategy_config);
|
|
|
|
#if SOC_APM_SUPPORTED
|
|
// APM strategy: trusted mode
|
|
// TODO: IDF-5354 GDMA for M2M usage only need read and write permissions, we should disable the execute permission by the APM controller
|
|
apm_tee_ll_set_master_secure_mode(APM_LL_MASTER_GDMA + m2m_trigger.instance_id, APM_LL_SECURE_MODE_TEE);
|
|
#endif // SOC_APM_SUPPORTED
|
|
|
|
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;
|
|
}
|
|
|
|
esp_err_t async_memcpy_impl_new_etm_event(async_memcpy_impl_t *impl, async_memcpy_etm_event_t event_type, esp_etm_event_handle_t *out_event)
|
|
{
|
|
if (event_type == ASYNC_MEMCPY_ETM_EVENT_COPY_DONE) {
|
|
// use the RX EOF to indicate the async memcpy done event
|
|
gdma_etm_event_config_t etm_event_conf = {
|
|
.event_type = GDMA_ETM_EVENT_EOF,
|
|
};
|
|
return gdma_new_etm_event(impl->rx_channel, &etm_event_conf, out_event);
|
|
} else {
|
|
return ESP_ERR_NOT_SUPPORTED;
|
|
}
|
|
}
|
|
|
|
bool async_memcpy_impl_is_buffer_address_valid(async_memcpy_impl_t *impl, void *src, void *dst)
|
|
{
|
|
bool valid = true;
|
|
if (esp_ptr_external_ram(dst)) {
|
|
if (impl->psram_trans_align) {
|
|
valid = valid && (((intptr_t)dst & (impl->psram_trans_align - 1)) == 0);
|
|
}
|
|
} else {
|
|
if (impl->sram_trans_align) {
|
|
valid = valid && (((intptr_t)dst & (impl->sram_trans_align - 1)) == 0);
|
|
}
|
|
}
|
|
return valid;
|
|
}
|