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lcd: update doc unit test and example to support 8-line spi

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This commit is contained in:
morris
2021-08-18 19:19:55 +08:00
parent 8143832041
commit 71d475149d
18 changed files with 349 additions and 337 deletions
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14
components/esp_lcd/src/esp_lcd_panel_io_spi.c
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@@ -61,9 +61,7 @@ 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
.flags = io_config->flags.octal_mode ? SPI_DEVICE_HALFDUPLEX : 0,
.clock_speed_hz = io_config->pclk_hz,
.mode = io_config->spi_mode,
.spics_io_num = io_config->cs_gpio_num,
@@ -152,11 +150,10 @@ 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);
// 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);
}
#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;
}
@@ -202,11 +199,10 @@ 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);
// 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);
}
#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");