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feat(mipi_dsi): replace the fbcopy driver by the async color conver driver

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morris
2026-06-30 11:51:40 +08:00
parent 3eddb7915f
commit a035a90ef6
4 changed files with 36 additions and 359 deletions
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components/esp_lcd/dsi/esp_lcd_panel_dpi.c
+36 -46
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@@ -6,11 +6,11 @@
#include <sys/param.h>
#include "esp_lcd_panel_interface.h"
#include "esp_lcd_mipi_dsi.h"
#include "esp_async_color_convert.h"
#include "esp_intr_alloc.h"
#include "esp_clk_tree.h"
#include "esp_cache.h"
#include "mipi_dsi_priv.h"
#include "esp_async_fbcpy.h"
#include "esp_memory_utils.h"
#include "esp_private/dw_gdma.h"
#include "hal/color_hal.h"
@@ -45,8 +45,7 @@ struct esp_lcd_dpi_panel_t {
esp_lcd_panel_draw_bitmap_hook_t draw_bitmap_hook; // Draw bitmap hook function
void* hook_ctx; // Hook context
bool (*on_hook_end)(esp_lcd_panel_handle_t panel); // Callback to be invoked when the draw bitmap hook completes its operation
esp_async_fbcpy_handle_t fbcpy_handle; // Use DMA2D to do frame buffer copy (only when using DMA2D draw bitmap hook)
SemaphoreHandle_t draw_sem; // A semaphore used to synchronize the draw operations when DMA2D is used
async_color_convert_handle_t fbcpy_handle; // Async color convert handle used for same-format DMA2D frame buffer copy
#if CONFIG_PM_ENABLE
esp_pm_lock_handle_t pm_lock; // Power management lock
@@ -66,24 +65,18 @@ static bool dpi_panel_draw_bitmap_hook_end(esp_lcd_panel_t *panel)
return false;
}
static bool async_fbcpy_done_cb(esp_async_fbcpy_handle_t mcp, esp_async_fbcpy_event_data_t *event, void *cb_args)
static bool async_fbcpy_done_cb(async_color_convert_handle_t conv_hdl, async_color_convert_event_data_t *event, void *cb_args)
{
bool need_yield = false;
esp_lcd_dpi_panel_t *dpi_panel = (esp_lcd_dpi_panel_t *)cb_args;
// release the draw semaphore first
BaseType_t task_woken = pdFALSE;
xSemaphoreGiveFromISR(dpi_panel->draw_sem, &task_woken);
if (task_woken == pdTRUE) {
need_yield = true;
}
(void)conv_hdl;
(void)event;
if (dpi_panel->on_hook_end) {
if (dpi_panel->on_hook_end(&dpi_panel->base)) {
need_yield = true;
}
}
return need_yield;
}
@@ -489,28 +482,31 @@ static esp_err_t dpi_panel_draw_bitmap_dma2d_hook(esp_lcd_panel_t *panel, const
{
ESP_LOGV(TAG, "copy draw buffer by DMA2D");
esp_lcd_dpi_panel_t *dpi_panel = __containerof(panel, esp_lcd_dpi_panel_t, base);
// ensure the previous draw operation is finished
ESP_RETURN_ON_FALSE(xSemaphoreTake(dpi_panel->draw_sem, 0) == pdTRUE, ESP_ERR_INVALID_STATE,
TAG, "previous draw operation is not finished");
(void)hook_ctx;
esp_async_fbcpy_trans_desc_t fbcpy_trans_config = {
async_color_convert_request_t fbcpy_trans_config = {
.src_buffer = hook_data->src_data,
.dst_buffer = hook_data->dst_data,
.src_buffer_size_x = hook_data->src_x_size,
.src_buffer_size_y = hook_data->src_y_size,
.dst_buffer_size_x = hook_data->dst_x_size,
.dst_buffer_size_y = hook_data->dst_y_size,
.src_offset_x = hook_data->src_x_start,
.src_offset_y = hook_data->src_y_start,
.dst_offset_x = hook_data->dst_x_start,
.dst_offset_y = hook_data->dst_y_start,
.copy_size_x = hook_data->src_x_end - hook_data->src_x_start,
.copy_size_y = hook_data->src_y_end - hook_data->src_y_start,
.pixel_format_fourcc_id = dpi_panel->in_color_format,
.src_stride = hook_data->src_x_size,
.src_height = hook_data->src_y_size,
.dst_stride = hook_data->dst_x_size,
.dst_height = hook_data->dst_y_size,
.src_x = hook_data->src_x_start,
.src_y = hook_data->src_y_start,
.dst_x = hook_data->dst_x_start,
.dst_y = hook_data->dst_y_start,
.copy_width = hook_data->src_x_end - hook_data->src_x_start,
.copy_height = hook_data->src_y_end - hook_data->src_y_start,
// For this DMA2D hook we only do window copy from draw buffer to frame buffer.
// Source and destination color formats are intentionally set to the same value to disable CSC.
.src_color_format = dpi_panel->in_color_format,
.dst_color_format = dpi_panel->in_color_format,
};
// save the on_hook_end callback, and invoke it when the async memcpy is done
// The async color convert backend owns source/destination cache sync for the
// DMA2D copy path, so the LCD driver should not perform extra cache sync here.
// Save the completion callback and invoke it when the async frame buffer copy finishes.
dpi_panel->on_hook_end = hook_data->on_hook_end;
ESP_RETURN_ON_ERROR(esp_async_fbcpy(dpi_panel->fbcpy_handle, &fbcpy_trans_config, async_fbcpy_done_cb, dpi_panel), TAG, "async memcpy failed");
ESP_RETURN_ON_ERROR(esp_async_color_convert(dpi_panel->fbcpy_handle, &fbcpy_trans_config, async_fbcpy_done_cb, dpi_panel), TAG, "async frame buffer copy failed");
return ESP_OK;
}
@@ -535,13 +531,11 @@ esp_err_t esp_lcd_dpi_panel_enable_dma2d(esp_lcd_panel_handle_t panel)
// Check if built-in DMA2D draw bitmap hook is registered
ESP_RETURN_ON_FALSE(!dpi_panel->fbcpy_handle, ESP_ERR_INVALID_STATE, TAG, "draw bitmap DMA2D hook is already registered");
// Initialize DMA2D resources
esp_async_fbcpy_config_t fbcpy_config = {};
ESP_RETURN_ON_ERROR(esp_async_fbcpy_install(&fbcpy_config, &dpi_panel->fbcpy_handle), TAG, "install async memcpy 2d failed");
// Initialize the async color convert backend used by the built-in DMA2D copy hook.
// Use its default backlog to queue multiple frame buffer copy requests.
async_color_convert_config_t fbcpy_config = {};
ESP_RETURN_ON_ERROR(esp_async_color_convert_install_dma2d(&fbcpy_config, &dpi_panel->fbcpy_handle), TAG, "install async frame buffer copy backend failed");
dpi_panel->draw_sem = xSemaphoreCreateBinaryWithCaps(DSI_MEM_ALLOC_CAPS);
ESP_GOTO_ON_FALSE(dpi_panel->draw_sem, ESP_ERR_NO_MEM, err, TAG, "no memory for draw semaphore");
xSemaphoreGive(dpi_panel->draw_sem);
// Register the DMA2D draw bitmap hook
esp_lcd_panel_hooks_t hooks = {
.draw_bitmap_hook = dpi_panel_draw_bitmap_dma2d_hook,
@@ -552,13 +546,10 @@ esp_err_t esp_lcd_dpi_panel_enable_dma2d(esp_lcd_panel_handle_t panel)
err:
if (dpi_panel->fbcpy_handle) {
esp_async_fbcpy_uninstall(dpi_panel->fbcpy_handle);
esp_async_color_convert_uninstall(dpi_panel->fbcpy_handle);
dpi_panel->fbcpy_handle = NULL;
}
if (dpi_panel->draw_sem) {
vSemaphoreDeleteWithCaps(dpi_panel->draw_sem);
dpi_panel->draw_sem = NULL;
}
dpi_panel->on_hook_end = NULL;
return ret;
}
@@ -575,13 +566,10 @@ esp_err_t esp_lcd_dpi_panel_disable_dma2d(esp_lcd_panel_handle_t panel)
};
ESP_RETURN_ON_ERROR(esp_lcd_dpi_panel_register_hooks(panel, &hooks, NULL), TAG, "unregister DMA2D draw bitmap hook failed");
if (dpi_panel->fbcpy_handle) {
ESP_RETURN_ON_ERROR(esp_async_fbcpy_uninstall(dpi_panel->fbcpy_handle), TAG, "uninstall DMA2D failed");
ESP_RETURN_ON_ERROR(esp_async_color_convert_uninstall(dpi_panel->fbcpy_handle), TAG, "uninstall DMA2D failed");
dpi_panel->fbcpy_handle = NULL;
}
if (dpi_panel->draw_sem) {
vSemaphoreDeleteWithCaps(dpi_panel->draw_sem);
dpi_panel->draw_sem = NULL;
}
dpi_panel->on_hook_end = NULL;
return ESP_OK;
}
@@ -647,7 +635,9 @@ static esp_err_t dpi_panel_draw_bitmap_2d(esp_lcd_panel_t *panel, int x_start, i
}
} else if (dpi_panel->draw_bitmap_hook) { // copy using draw bitmap hook
ESP_LOGV(TAG, "copy draw buffer by draw bitmap hook");
// Note, whether the previous draw operation is finished should be ensured by the hook
// Note, whether the previous draw operation is finished should be ensured by the hook.
// For the built-in DMA2D hook, cache maintenance of the source and destination
// buffers is handled inside the async color convert driver.
esp_lcd_draw_bitmap_hook_data_t hook_data = {
.dst_data = frame_buffer,