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feat(esp_lcd): spi add support for quad mode

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Liu Zhongwei 2023-08-17 13:57:21 +08:00 committed by morris
parent f96a9ad84c
commit 3c9f407c1d
2 changed files with 9 additions and 0 deletions
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1
components/esp_lcd/include/esp_lcd_panel_io.h
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@ -136,6 +136,7 @@ typedef struct {
struct {
unsigned int dc_low_on_data: 1; /*!< If this flag is enabled, DC line = 0 means transfer data, DC line = 1 means transfer command; vice versa */
unsigned int octal_mode: 1; /*!< transmit with octal mode (8 data lines), this mode is used to simulate Intel 8080 timing */
unsigned int quad_mode: 1; /*!< transmit with quad mode (4 data lines), this mode is useful when transmitting LCD parameters (Only use one line for command) */
unsigned int sio_mode: 1; /*!< Read and write through a single data line (MOSI) */
unsigned int lsb_first: 1; /*!< transmit LSB bit first */
unsigned int cs_high_active: 1; /*!< CS line is high active */

8
components/esp_lcd/src/esp_lcd_panel_io_spi.c
View File

@ -54,6 +54,7 @@ typedef struct {
struct {
unsigned int dc_data_level: 1; // Indicates the level of DC line when tranfering data
unsigned int octal_mode: 1; // Indicates whether the transmitting is enabled with octal mode (8 data lines)
unsigned int quad_mode: 1; // Indicates whether the transmitting is enabled with quad mode (4 data lines)
} flags;
lcd_spi_trans_descriptor_t trans_pool[]; // Transaction pool
} esp_lcd_panel_io_spi_t;
@ -95,6 +96,7 @@ esp_err_t esp_lcd_new_panel_io_spi(esp_lcd_spi_bus_handle_t bus, const esp_lcd_p
spi_panel_io->flags.dc_data_level = !io_config->flags.dc_low_on_data;
spi_panel_io->flags.octal_mode = io_config->flags.octal_mode;
spi_panel_io->flags.quad_mode = io_config->flags.quad_mode;
spi_panel_io->on_color_trans_done = io_config->on_color_trans_done;
spi_panel_io->user_ctx = io_config->user_ctx;
spi_panel_io->lcd_cmd_bits = io_config->lcd_cmd_bits;
@ -329,6 +331,9 @@ static esp_err_t panel_io_spi_tx_color(esp_lcd_panel_io_t *io, int lcd_cmd, cons
lcd_trans->flags.dc_gpio_level = !spi_panel_io->flags.dc_data_level; // set D/C line to command mode
lcd_trans->base.length = spi_panel_io->lcd_cmd_bits;
lcd_trans->base.tx_buffer = &lcd_cmd;
if(color && color_size) {
lcd_trans->base.flags |= SPI_TRANS_CS_KEEP_ACTIVE;
}
if (spi_panel_io->flags.octal_mode) {
// use 8 lines for transmitting command, address and data
lcd_trans->base.flags |= (SPI_TRANS_MULTILINE_CMD | SPI_TRANS_MULTILINE_ADDR | SPI_TRANS_MODE_OCT);
@ -372,6 +377,9 @@ static esp_err_t panel_io_spi_tx_color(esp_lcd_panel_io_t *io, int lcd_cmd, cons
if (spi_panel_io->flags.octal_mode) {
// use 8 lines for transmitting command, address and data
lcd_trans->base.flags |= (SPI_TRANS_MULTILINE_CMD | SPI_TRANS_MULTILINE_ADDR | SPI_TRANS_MODE_OCT);
} else if (spi_panel_io->flags.quad_mode) {
// use 4 lines only for transmitting data
lcd_trans->base.flags |= SPI_TRANS_MODE_QIO;
}
// color data is usually large, using queue+blocking mode