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lcd: improve LL driver according to TRM

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This commit is contained in:
morris
2022-01-21 18:29:45 +08:00
parent 1938d7c006
commit 2ab7d92785
5 changed files with 253 additions and 21 deletions
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9
components/esp_lcd/src/esp_lcd_panel_io_i80.c
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@@ -164,7 +164,7 @@ esp_err_t esp_lcd_new_i80_bus(const esp_lcd_i80_bus_config_t *bus_config, esp_lc
// enable 8080 mode and set bus width
lcd_ll_enable_rgb_mode(bus->hal.dev, false);
lcd_ll_set_data_width(bus->hal.dev, bus_config->bus_width);
bus->bus_width = lcd_ll_get_data_width(bus->hal.dev);
bus->bus_width = bus_config->bus_width;
// number of data cycles is controlled by DMA buffer size
lcd_ll_enable_output_always_on(bus->hal.dev, true);
// enable trans done interrupt
@@ -389,7 +389,7 @@ static esp_err_t panel_io_i80_tx_param(esp_lcd_panel_io_t *io, int lcd_cmd, cons
// switch devices if necessary
lcd_i80_switch_devices(cur_device, next_device);
// set data format
lcd_ll_reverse_data_byte_order(bus->hal.dev, false);
lcd_ll_swap_data_byte_order(bus->hal.dev, false);
lcd_ll_reverse_data_bit_order(bus->hal.dev, false);
lcd_ll_reverse_data_8bits_order(bus->hal.dev, next_device->lcd_param_bits > bus->bus_width);
bus->cur_trans = NULL;
@@ -462,7 +462,8 @@ static esp_err_t panel_io_i80_tx_color(esp_lcd_panel_io_t *io, int lcd_cmd, cons
static esp_err_t lcd_i80_select_periph_clock(esp_lcd_i80_bus_handle_t bus, lcd_clock_source_t clk_src)
{
esp_err_t ret = ESP_OK;
lcd_ll_set_group_clock_src(bus->hal.dev, clk_src, LCD_PERIPH_CLOCK_PRE_SCALE, 1, 0);
// force to use integer division, as fractional division might lead to clock jitter
lcd_ll_set_group_clock_src(bus->hal.dev, clk_src, LCD_PERIPH_CLOCK_PRE_SCALE, 0, 0);
switch (clk_src) {
case LCD_CLK_SRC_PLL160M:
bus->resolution_hz = 160000000 / LCD_PERIPH_CLOCK_PRE_SCALE;
@@ -639,7 +640,7 @@ IRAM_ATTR static void lcd_default_isr_handler(void *args)
lcd_i80_switch_devices(cur_device, next_device);
// only reverse data bit/bytes for color data
lcd_ll_reverse_data_bit_order(bus->hal.dev, next_device->flags.reverse_color_bits);
lcd_ll_reverse_data_byte_order(bus->hal.dev, next_device->flags.swap_color_bytes);
lcd_ll_swap_data_byte_order(bus->hal.dev, next_device->flags.swap_color_bytes);
lcd_ll_reverse_data_8bits_order(bus->hal.dev, false);
bus->cur_trans = trans_desc;
bus->cur_device = next_device;