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refactor(gdma): move buffer aligment to buffer mount config

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This commit is contained in:
Chen Jichang
2025-10-10 17:44:54 +08:00
parent efd5dbbe45
commit 0c733c2018
12 changed files with 62 additions and 41 deletions
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components/esp_lcd/i80/esp_lcd_panel_io_i2s.c
+2 -1
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@@ -145,7 +145,6 @@ esp_err_t esp_lcd_new_i80_bus(const esp_lcd_i80_bus_config_t *bus_config, esp_lc
size_t num_dma_nodes = esp_dma_calculate_node_count(max_transfer_bytes, 1, LCD_DMA_DESCRIPTOR_BUFFER_MAX_SIZE);
// create DMA link list
gdma_link_list_config_t dma_link_config = {
.buffer_alignment = 1, // no special buffer alignment for LCD TX buffer
.item_alignment = 4, // 4 bytes alignment for each DMA descriptor
.num_items = num_dma_nodes,
.flags = {
@@ -721,6 +720,7 @@ static void i2s_lcd_trigger_quick_trans_done_event(esp_lcd_i80_bus_handle_t bus)
static uint32_t fake_trigger = 0;
gdma_buffer_mount_config_t mount_config = {
.buffer = &fake_trigger,
.buffer_alignment = 1, // no special buffer alignment for fake trigger
.length = 4,
.flags = {
.mark_eof = true, // mark the "EOF" flag to trigger I2S EOF interrupt
@@ -807,6 +807,7 @@ static IRAM_ATTR void i2s_lcd_default_isr_handler(void *args)
// mount data to DMA links
gdma_buffer_mount_config_t mount_config = {
.buffer = (void *)trans_desc->data,
.buffer_alignment = 1, // no special buffer alignment for LCD TX buffer
.length = trans_desc->data_length,
.flags = {
.mark_eof = true,
components/esp_lcd/i80/esp_lcd_panel_io_i80.c
+2 -1
View File
@@ -491,9 +491,11 @@ static esp_err_t panel_io_i80_tx_param(esp_lcd_panel_io_t *io, int lcd_cmd, cons
trans_desc->data = (param && param_len) ? bus->format_buffer : NULL;
trans_desc->data_length = trans_desc->data ? param_len : 0;
trans_desc->trans_done_cb = NULL; // no callback for parameter transaction
size_t buffer_alignment = esp_ptr_internal(trans_desc->data) ? bus->int_mem_align : bus->ext_mem_align;
// mount data to DMA links
gdma_buffer_mount_config_t mount_config = {
.buffer = (void *)trans_desc->data,
.buffer_alignment = buffer_alignment,
.length = trans_desc->data_length,
.flags = {
.mark_eof = true,
@@ -625,7 +627,6 @@ static esp_err_t lcd_i80_init_dma_link(esp_lcd_i80_bus_handle_t bus, const esp_l
size_t num_dma_nodes = esp_dma_calculate_node_count(bus->max_transfer_bytes, buffer_alignment, LCD_DMA_DESCRIPTOR_BUFFER_MAX_SIZE);
// create DMA link list
gdma_link_list_config_t dma_link_config = {
.buffer_alignment = buffer_alignment,
.item_alignment = LCD_GDMA_DESCRIPTOR_ALIGN,
.num_items = num_dma_nodes,
.flags = {