alex/esp-idf
alex/esp-idf
1
0
Fork 0
mirror of https://github.com/espressif/esp-idf.git synced 2024-09-19 14:26:01 -04:00
Code Issues Actions 3 Packages Projects Releases Wiki Activity

change(dsi): use DW_GDMA as the flow controller

Browse Source 
previously the DSI_Bridge was set as the flow controller
This commit is contained in:
morris 2024-05-27 18:41:02 +08:00
parent 75b221436c
commit 1861dc12a0
1 changed files with 3 additions and 3 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

6
components/esp_lcd/dsi/esp_lcd_panel_dpi.c
View File

@ -118,7 +118,7 @@ static esp_err_t dpi_panel_create_dma_link(esp_lcd_dpi_panel_t *dpi_panel)
.handshake_type = DW_GDMA_HANDSHAKE_HW, .handshake_type = DW_GDMA_HANDSHAKE_HW,
.num_outstanding_requests = 2, .num_outstanding_requests = 2,
}, },
.flow_controller = DW_GDMA_FLOW_CTRL_DST, // the DSI bridge as the DMA flow controller .flow_controller = DW_GDMA_FLOW_CTRL_SELF, // DMA as the flow controller
.chan_priority = 1, .chan_priority = 1,
}; };
ESP_RETURN_ON_ERROR(dw_gdma_new_channel(&dma_alloc_config, &dma_chan), TAG, "create DMA channel failed"); ESP_RETURN_ON_ERROR(dw_gdma_new_channel(&dma_alloc_config, &dma_chan), TAG, "create DMA channel failed");
@ -280,8 +280,8 @@ esp_err_t esp_lcd_new_panel_dpi(esp_lcd_dsi_bus_handle_t bus, const esp_lcd_dpi_
panel_config->video_timing.vsync_front_porch); panel_config->video_timing.vsync_front_porch);
mipi_dsi_brg_ll_set_num_pixel_bits(hal->bridge, panel_config->video_timing.h_size * panel_config->video_timing.v_size * bits_per_pixel); mipi_dsi_brg_ll_set_num_pixel_bits(hal->bridge, panel_config->video_timing.h_size * panel_config->video_timing.v_size * bits_per_pixel);
mipi_dsi_brg_ll_set_underrun_discard_count(hal->bridge, panel_config->video_timing.h_size); mipi_dsi_brg_ll_set_underrun_discard_count(hal->bridge, panel_config->video_timing.h_size);
// let the DSI bridge as the DMA flow controller // use the DW_GDMA as the flow controller
mipi_dsi_brg_ll_set_flow_controller(hal->bridge, MIPI_DSI_LL_FLOW_CONTROLLER_BRIDGE); mipi_dsi_brg_ll_set_flow_controller(hal->bridge, MIPI_DSI_LL_FLOW_CONTROLLER_DMA);
mipi_dsi_brg_ll_set_burst_len(hal->bridge, 256); mipi_dsi_brg_ll_set_burst_len(hal->bridge, 256);
mipi_dsi_brg_ll_set_empty_threshold(hal->bridge, 1024 - 256); mipi_dsi_brg_ll_set_empty_threshold(hal->bridge, 1024 - 256);
// enable DSI bridge // enable DSI bridge