zenermerps/lvgl_esp32_drivers
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lvgl_helpers: Let the SPI driver choose SPI DMA Channel

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Use SPI_DMA_CH1 only on ESP32 target.
This commit is contained in:
C47D 2022-01-11 18:24:23 -06:00
parent 75685f6040
commit 150a489b30
1 changed files with 15 additions and 6 deletions
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21
lvgl_helpers.c
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@ -70,6 +70,14 @@ void lvgl_interface_init(void)
ESP_LOGI(TAG, "Display buffer size: %d", lvgl_get_display_buffer_size());
/* SPI DMA Channel selection
* SPI_DMA_CH1 is only defined for ESP32, so let the driver choose which
* channel to use, and use the proven channel 1 on esp32 targets */
int dma_channel = SPI_DMA_CH_AUTO;
#if defined (CONFIG_IDF_TARGET_ESP32)
dma_channel = SPI_DMA_CH1;
#endif
#if defined (CONFIG_LV_TFT_DISPLAY_CONTROLLER_FT81X)
ESP_LOGI(TAG, "Initializing SPI master for FT81X");
@ -78,7 +86,7 @@ void lvgl_interface_init(void)
lvgl_spi_driver_init(TFT_SPI_HOST,
DISP_SPI_MISO, DISP_SPI_MOSI, DISP_SPI_CLK,
spi_max_transfer_size, SPI_DMA_CH1,
spi_max_transfer_size, dma_channel,
DISP_SPI_IO2, DISP_SPI_IO3);
disp_spi_add_device(TFT_SPI_HOST);
@ -104,7 +112,7 @@ void lvgl_interface_init(void)
lvgl_spi_driver_init(TFT_SPI_HOST,
miso, DISP_SPI_MOSI, DISP_SPI_CLK,
spi_max_transfer_size, SPI_DMA_CH1,
spi_max_transfer_size, dma_channel,
DISP_SPI_IO2, DISP_SPI_IO3);
disp_spi_add_device(TFT_SPI_HOST);
@ -125,9 +133,13 @@ void lvgl_interface_init(void)
#if defined (CONFIG_LV_TOUCH_DRIVER_PROTOCOL_SPI)
ESP_LOGI(TAG, "Initializing SPI master for touch");
#if defined (CONFIG_IDF_TARGET_ESP32)
dma_channel = SPI_DMA_CH2;
#endif
lvgl_spi_driver_init(TOUCH_SPI_HOST,
TP_SPI_MISO, TP_SPI_MOSI, TP_SPI_CLK,
DMA_DEFAULT_TRANSFER_SIZE, SPI_DMA_CH2,
DMA_DEFAULT_TRANSFER_SIZE, dma_channel,
GPIO_NOT_USED, GPIO_NOT_USED);
tp_spi_add_device(TOUCH_SPI_HOST);
@ -286,9 +298,6 @@ bool lvgl_spi_driver_init(spi_host_device_t host,
};
ESP_LOGI(TAG, "Initializing SPI bus...");
#if defined (CONFIG_IDF_TARGET_ESP32C3)
dma_channel = SPI_DMA_CH_AUTO;
#endif
#if ESP_IDF_VERSION >= ESP_IDF_VERSION_VAL(4, 3, 0)
esp_err_t ret = spi_bus_initialize(host, &buscfg, (spi_dma_chan_t)dma_channel);