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spi_master:support octal mode for esp32s2 and esp32s3

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Add support for 8-line spi for lcd on esp32s2 and esp32s3

Closes https://github.com/espressif/esp-idf/issues/6371
This commit is contained in:
bizhuangyang
2021-07-09 16:46:27 +08:00
committed by morris
parent c81d45280e
commit 8143832041
30 changed files with 709 additions and 414 deletions
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15
components/esp_lcd/src/esp_lcd_panel_io_spi.c
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@@ -45,6 +45,7 @@ typedef struct {
struct {
unsigned int dc_as_cmd_phase: 1; // D/C line value is encoded into SPI transaction command phase
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)
} flags;
lcd_spi_trans_descriptor_t trans_pool[]; // Transaction pool
} esp_lcd_panel_io_spi_t;
@@ -60,6 +61,9 @@ esp_err_t esp_lcd_new_panel_io_spi(esp_lcd_spi_bus_handle_t bus, const esp_lcd_p
ESP_GOTO_ON_FALSE(spi_panel_io, ESP_ERR_NO_MEM, err, TAG, "no mem for spi panel io");
spi_device_interface_config_t devcfg = {
#if SOC_SPI_SUPPORT_OCT
.flags = SPI_DEVICE_HALFDUPLEX, // lcd driver only use one transfer direction, so half duplex is enough.
#endif
.clock_speed_hz = io_config->pclk_hz,
.mode = io_config->spi_mode,
.spics_io_num = io_config->cs_gpio_num,
@@ -82,6 +86,7 @@ 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_as_cmd_phase = io_config->flags.dc_as_cmd_phase;
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->on_color_trans_done = io_config->on_color_trans_done;
spi_panel_io->lcd_cmd_bits = io_config->lcd_cmd_bits;
spi_panel_io->lcd_param_bits = io_config->lcd_param_bits;
@@ -147,6 +152,11 @@ static esp_err_t panel_io_spi_tx_param(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 SOC_SPI_SUPPORT_OCT
if (spi_panel_io->flags.octal_mode) {
lcd_trans->base.flags |= (MULTILINE_CMD | MULTILINE_ADDR | SPI_TRANS_MODE_OCT);
}
#endif
if (spi_panel_io->flags.dc_as_cmd_phase) { // encoding DC value to SPI command phase when necessary
lcd_trans->base.cmd = !spi_panel_io->flags.dc_data_level;
}
@@ -192,6 +202,11 @@ static esp_err_t panel_io_spi_tx_color(esp_lcd_panel_io_t *io, int lcd_cmd, cons
if (spi_panel_io->flags.dc_as_cmd_phase) { // encoding DC value to SPI command phase when necessary
lcd_trans->base.cmd = !spi_panel_io->flags.dc_data_level;
}
#if SOC_SPI_SUPPORT_OCT
if (spi_panel_io->flags.octal_mode) {
lcd_trans->base.flags |= (MULTILINE_CMD | MULTILINE_ADDR | SPI_TRANS_MODE_OCT);
}
#endif
// command is short, using polling mode
ret = spi_device_polling_transmit(spi_panel_io->spi_dev, &lcd_trans->base);
ESP_GOTO_ON_ERROR(ret, err, TAG, "spi transmit (polling) command failed");