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feat(i80_lcd): add help function to allocate draw buffer with proper alignment

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morris
2024-05-29 22:45:46 +08:00
parent 33ac88cd31
commit b6bc597903
4 changed files with 42 additions and 13 deletions
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10
components/esp_lcd/i80/esp_lcd_panel_io_i2s.c
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@@ -1,5 +1,5 @@
/*
* SPDX-FileCopyrightText: 2021-2022 Espressif Systems (Shanghai) CO LTD
* SPDX-FileCopyrightText: 2021-2024 Espressif Systems (Shanghai) CO LTD
*
* SPDX-License-Identifier: Apache-2.0
*/
@@ -321,6 +321,14 @@ err:
return ret;
}
void *esp_lcd_i80_alloc_draw_buffer(esp_lcd_panel_io_handle_t io, size_t size, uint32_t caps)
{
ESP_RETURN_ON_FALSE(io, NULL, TAG, "invalid argument");
ESP_RETURN_ON_FALSE((caps & MALLOC_CAP_SPIRAM) == 0, NULL, TAG, "external memory is not supported");
// DMA can only carry internal memory
return heap_caps_aligned_calloc(4, 1, size, MALLOC_CAP_INTERNAL | MALLOC_CAP_8BIT | MALLOC_CAP_DMA);
}
static esp_err_t panel_io_i80_del(esp_lcd_panel_io_t *io)
{
lcd_panel_io_i80_t *i80_device = __containerof(io, lcd_panel_io_i80_t, base);