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feat(dma2d,ppa): Support flash encryption for DMA2D and PPA

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This commit is contained in:
Song Ruo Jing
2026-02-26 16:39:40 +08:00
parent 29d62fa6ae
commit 9362907287
71 changed files with 499 additions and 165 deletions
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components/esp_driver_ppa/src/ppa_fill.c
+7 -4
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@@ -1,5 +1,5 @@
/*
* SPDX-FileCopyrightText: 2023-2025 Espressif Systems (Shanghai) CO LTD
* SPDX-FileCopyrightText: 2023-2026 Espressif Systems (Shanghai) CO LTD
*
* SPDX-License-Identifier: Apache-2.0
*/
@@ -58,6 +58,7 @@ bool ppa_fill_transaction_on_picked(uint32_t num_chans, const dma2d_trans_channe
dma2d_connect(dma2d_rx_chan, &trig_periph);
dma2d_transfer_ability_t dma_transfer_ability = {
.access_ext_mem = true, // in most cases the buffer is located in external memory, will not bother checking the memory region of the buffer
.data_burst_length = fill_trans_desc->data_burst_length,
.desc_burst_en = true,
.mb_size = DMA2D_MACRO_BLOCK_SIZE_NONE,
@@ -89,9 +90,6 @@ esp_err_t ppa_do_fill(ppa_client_handle_t ppa_client, const ppa_fill_oper_config
ESP_RETURN_ON_FALSE(config->mode <= PPA_TRANS_MODE_NON_BLOCKING, ESP_ERR_INVALID_ARG, TAG, "invalid mode");
// out_buffer ptr cannot in flash region
ESP_RETURN_ON_FALSE(esp_ptr_internal(config->out.buffer) || esp_ptr_external_ram(config->out.buffer), ESP_ERR_INVALID_ARG, TAG, "invalid out.buffer addr");
uint32_t buf_alignment_size = (uint32_t)ppa_client->engine->platform->buf_alignment_size;
ESP_RETURN_ON_FALSE(((uint32_t)config->out.buffer & (buf_alignment_size - 1)) == 0 && (config->out.buffer_size & (buf_alignment_size - 1)) == 0,
ESP_ERR_INVALID_ARG, TAG, "out.buffer addr or out.buffer_size not aligned to cache line size");
ESP_RETURN_ON_FALSE(ppa_ll_blend_is_color_mode_supported((ppa_blend_color_mode_t)config->out.fill_cm), ESP_ERR_INVALID_ARG, TAG, "unsupported color mode");
// For YUV420 output: in desc, ha/hb/va/vb/x/y must be even number
// For YUV422 output: in desc, ha/hb/x must be even number
@@ -110,10 +108,15 @@ esp_err_t ppa_do_fill(ppa_client_handle_t ppa_client, const ppa_fill_oper_config
ESP_RETURN_ON_FALSE(config->fill_block_w <= (config->out.pic_w - config->out.block_offset_x) &&
config->fill_block_h <= (config->out.pic_h - config->out.block_offset_y),
ESP_ERR_INVALID_ARG, TAG, "block does not fit in the out pic");
if (!ppa_check_buffer_alignment(ppa_client, &config->out, false, config->fill_block_w)) {
return ESP_ERR_INVALID_ARG;
}
// To reduce complexity, specific color_mode, fill_block_w/h correctness are checked in their corresponding LL functions
// Write back and invalidate necessary data (note that the window content is not continuous in the buffer)
// Write back and invalidate buffer extended window (alignment not necessary on C2M direction, but alignment strict on M2C direction)
uint32_t buf_alignment_size = (uint32_t)ppa_client->engine->platform->buf_alignment_size;
uint32_t out_ext_window = (uint32_t)config->out.buffer + config->out.block_offset_y * config->out.pic_w * out_pixel_depth / 8;
uint32_t out_ext_window_aligned = PPA_ALIGN_DOWN(out_ext_window, buf_alignment_size);
uint32_t out_ext_window_len = config->out.pic_w * config->fill_block_h * out_pixel_depth / 8;