47f4e5d412
Move per-target JPEG regdma retention descriptors out of esp_hal_jpeg and into esp_driver_jpeg so the codec driver owns its backup scope and restore flow.
esp_hal_jpeg
⚠️ This HAL component is still under heavy development at the moment, so we don't guarantee the stability and backward-compatibility among versions.
The esp_hal_jpeg component provides a Hardware Abstraction Layer of JPEG for all targets supported by ESP-IDF.
In a broad sense, the HAL layer consists of two sub-layers: HAL (upper) and Low-Level(bottom). The HAL layer defines the steps and data that is required to operate a peripheral (e.g. initialization, parameter settings). The low-level is a translation layer above the register files under the soc component, it only covers general conceptions to register configurations.
The functions in this file mainly provide hardware abstraction for IDF peripheral drivers. For advanced developers, the HAL layer functions can also be directly used to assist in implementing their own drivers. However, it needs to be mentioned again that the interfaces here do not guarantee stability.