alex/esp-idf
alex/esp-idf
1
0
Fork 0
mirror of https://github.com/espressif/esp-idf.git synced 2024-10-05 20:47:46 -04:00
Code Issues Actions 2 Packages Projects Releases Wiki Activity

Merge branch 'bugfix/i80_lcd_tx_param_check_enhancement' into 'master'

Browse Source 
fix(i80_lcd): enhance the check of a valid data phase

See merge request espressif/esp-idf!27347
This commit is contained in:
morris 2023-11-28 09:55:55 +08:00
commit 19d71f7dd6
1 changed files with 3 additions and 2 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

5
components/esp_lcd/src/esp_lcd_panel_io_i80.c
View File

@ -455,8 +455,9 @@ static esp_err_t panel_io_i80_tx_param(esp_lcd_panel_io_t *io, int lcd_cmd, cons
trans_desc->i80_device = next_device;
trans_desc->cmd_cycles = cmd_cycles;
trans_desc->cmd_value = lcd_cmd;
trans_desc->data = param ? bus->format_buffer : NULL;
trans_desc->data_length = param ? param_len : 0;
// either the param is NULL or the param_size is zero, means there isn't a data phase in this transaction
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
// mount data to DMA links
lcd_com_mount_dma_data(bus->dma_nodes, trans_desc->data, trans_desc->data_length);