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feat(rgb_lcd): use gdma_link driver

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This commit is contained in:
morris
2024-09-23 23:28:00 +08:00
parent fd5736f9bf
commit 2fa45a9028
5 changed files with 197 additions and 179 deletions
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26
components/esp_lcd/src/esp_lcd_common.c
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@@ -78,29 +78,3 @@ void lcd_com_remove_device(lcd_com_device_type_t device_type, int member_id)
}
}
#endif // SOC_LCDCAM_SUPPORTED
void lcd_com_mount_dma_data(dma_descriptor_t *desc_head, const void *buffer, size_t len)
{
size_t prepared_length = 0;
uint8_t *data = (uint8_t *)buffer;
dma_descriptor_t *desc = desc_head;
while (len > DMA_DESCRIPTOR_BUFFER_MAX_SIZE) {
desc->dw0.suc_eof = 0; // not the end of the transaction
desc->dw0.size = DMA_DESCRIPTOR_BUFFER_MAX_SIZE;
desc->dw0.length = DMA_DESCRIPTOR_BUFFER_MAX_SIZE;
desc->dw0.owner = DMA_DESCRIPTOR_BUFFER_OWNER_DMA;
desc->buffer = &data[prepared_length];
desc = desc->next; // move to next descriptor
prepared_length += DMA_DESCRIPTOR_BUFFER_MAX_SIZE;
len -= DMA_DESCRIPTOR_BUFFER_MAX_SIZE;
}
if (len) {
desc->dw0.suc_eof = 1; // end of the transaction
desc->dw0.size = len;
desc->dw0.length = len;
desc->dw0.owner = DMA_DESCRIPTOR_BUFFER_OWNER_DMA;
desc->buffer = &data[prepared_length];
desc = desc->next; // move to next descriptor
prepared_length += len;
}
}