Mahavir Jain e2fe2bf152 Merge branch 'fix/xts_aes_register_prefix_discrepency' into 'master' 2 tahun lalu
..
esp32 ffb40a89d9 adc_cali: supported channel compensation of adc calibration on esp32c6 2 tahun lalu
esp32c2 e2fe2bf152 Merge branch 'fix/xts_aes_register_prefix_discrepency' into 'master' 2 tahun lalu
esp32c3 e2fe2bf152 Merge branch 'fix/xts_aes_register_prefix_discrepency' into 'master' 2 tahun lalu
esp32c6 87848110c1 adc: new feature adc digital monitor supported 2 tahun lalu
esp32h2 87848110c1 adc: new feature adc digital monitor supported 2 tahun lalu
esp32s2 87848110c1 adc: new feature adc digital monitor supported 2 tahun lalu
esp32s3 87848110c1 adc: new feature adc digital monitor supported 2 tahun lalu
include 87848110c1 adc: new feature adc digital monitor supported 2 tahun lalu
platform_port 9fd8f3786a all: Replaces memset/memcpy with hal_mem.. funcs where were used -Wstringop-overread, -Wstringop-overflow, -Warray-bounds 3 tahun lalu
test 94120b82c2 esp32h2: add build test 3 tahun lalu
test_apps 21c6d5392f hal: add ecdsa peripheral verification tests 2 tahun lalu
CMakeLists.txt d3f77ec352 esp_hw_support/bootloader: made ESP32-C6 and ESP32-H2 RNG available 2 tahun lalu
Kconfig 15e8c04f7b spi: change linker file let spi hal able to out from iram 2 tahun lalu
README.md 5baf124219 docs: update readme aftering extracting hal document from soc document 5 tahun lalu
adc_hal.c 73791ff4e0 adc: fix adc continuous driver conv_frame_size not bigger than 4092 issue 2 tahun lalu
adc_hal_common.c ffb40a89d9 adc_cali: supported channel compensation of adc calibration on esp32c6 2 tahun lalu
adc_oneshot_hal.c 486c765a93 adc: remove adc_hal_conf.h 3 tahun lalu
aes_hal.c 51169b0e0c AES/SHA: use GDMA driver instead of LL 5 tahun lalu
apm_hal.c 8d0f6dab0f apm: added support for APM on esp32c6 3 tahun lalu
brownout_hal.c a3d962d89a brownout: Disable the hardware BOD when BOD interrupt is enabled 2 tahun lalu
cache_hal.c fda9746bb8 esp_mm: cache_msync API 3 tahun lalu
ds_hal.c 7eb9ecb4f6 esp_ds: move timeout mechanism to driver layer 4 tahun lalu
ecc_hal.c a485b1cb67 esp32h2: Add support for ECC hardware accelerator 2 tahun lalu
ecdsa_hal.c d634970ed1 ecdsa: Support multiple ECDSA keys 2 tahun lalu
efuse_hal.c ffb40a89d9 adc_cali: supported channel compensation of adc calibration on esp32c6 2 tahun lalu
emac_hal.c 256d457969 esp_eth: possible start/stop issue fixed 3 tahun lalu
etm_hal.c fb26d0e11f etm: added etm channel allocator 3 tahun lalu
gdma_hal.c 83d16aa00c gdma: support IRAM interrupt 4 tahun lalu
gpio_hal.c c9bcec9212 gpio: h2 support input hysteresis filter 3 tahun lalu
hmac_hal.c 1c233cc508 hmac_hal: Merge hmac hal layer for different into one 3 tahun lalu
i2c_hal.c 467356cfcd I2C: Fix issue that pointer would be NULL if calls i2c_param first, 3 tahun lalu
i2c_hal_iram.c 31b88a4c88 I2C: Refactor i2c hal and ll 3 tahun lalu
i2s_hal.c fd8042cf5b i2s_tdm: fixed half sample bit calculation 2 tahun lalu
lcd_hal.c 454d658309 rgb_lcd: workaround pclk polarity bug by setting mo>=2 3 tahun lalu
ledc_hal.c fcc6514dde ledc: Add an all-in-one HAL function to set fade parameters, and refactor ledc_ll_get_max_duty function 2 tahun lalu
ledc_hal_iram.c fcc6514dde ledc: Add an all-in-one HAL function to set fade parameters, and refactor ledc_ll_get_max_duty function 2 tahun lalu
linker.lf 15e8c04f7b spi: change linker file let spi hal able to out from iram 2 tahun lalu
mcpwm_hal.c f7ff7ac4d0 mcpwm: clean up hal driver and add doc 3 tahun lalu
mmu_hal.c bae6680207 mmu: hal function to init, and hal function to unmap all 2 tahun lalu
mpi_hal.c 4ae1ea7b9f bignum: refactored the hardware abstraction of the mpi peripheral 2 tahun lalu
mpu_hal.c 66fb5a29bb Whitespace: Automated whitespace fixes (large commit) 5 tahun lalu
parlio_hal.c f534247a00 driver: add parallel IO TX driver 2 tahun lalu
pcnt_hal.c ec8defaa96 pulse_cnt: new driver for PCNT peripheral 4 tahun lalu
rmt_hal.c b562754a2f rmt: support esp32c6 3 tahun lalu
rtc_io_hal.c 7a002ab7a6 rtcio: support rtcio on c6 3 tahun lalu
sdio_slave_hal.c 0f97a24892 sdio_slave: fix strict aliasing violation for sdio_ringbuf_recv() 3 tahun lalu
sdkconfig.rename e18f381905 HAL: fix kconfig HAL_ASSERTION typo 3 tahun lalu
sdm_hal.c 4154eaec93 sdm: clean up soc/hal/ll code 3 tahun lalu
sha_hal.c 51169b0e0c AES/SHA: use GDMA driver instead of LL 5 tahun lalu
spi_flash_encrypt_hal_iram.c 0d81edb174 spi_flash: refactoring flash encryption into new api 4 tahun lalu
spi_flash_hal.c ed96dadd06 spi_flash: 2nd stage for supporting flash suspend. (1). Support more esp chips (2). Improve real-time performance (3). Making timing more stable (4) Add documents 2 tahun lalu
spi_flash_hal_common.inc ed96dadd06 spi_flash: 2nd stage for supporting flash suspend. (1). Support more esp chips (2). Improve real-time performance (3). Making timing more stable (4) Add documents 2 tahun lalu
spi_flash_hal_gpspi.c f3e79ca166 spi_flash(c3): add boya chip support for suspend feature 5 tahun lalu
spi_flash_hal_iram.c ed96dadd06 spi_flash: 2nd stage for supporting flash suspend. (1). Support more esp chips (2). Improve real-time performance (3). Making timing more stable (4) Add documents 2 tahun lalu
spi_hal.c 774a05399b soc: fix wrong APB_CLK_FREQ value on esp32c6 3 tahun lalu
spi_hal_iram.c 184145817c spi_master: add feature spi periph clk source selectable 3 tahun lalu
spi_slave_hal.c c438ad5d72 spi: apply gdma allocator to SPI 5 tahun lalu
spi_slave_hal_iram.c ea0b839302 spi: limit esp32 dma workaround only on esp32 3 tahun lalu
spi_slave_hd_hal.c 66ca403bc6 spi_slave: support spi slave hd append mode on chips other than s2 2 tahun lalu
systimer_hal.c 560ea9b754 systimer: support etm event 3 tahun lalu
timer_hal.c a1030307f1 gptimer: bringup driver on esp32c6 3 tahun lalu
timer_hal_iram.c 995b89fbb6 gptimer: add API to get captured count value 3 tahun lalu
touch_sensor_hal.c 58c3f6a421 hal: explicitly include soc_caps.h 5 tahun lalu
twai_hal.c 72becf31e4 twai: Add errata workaround for listen only mode 3 tahun lalu
twai_hal_iram.c a25123f703 twai: bringup on esp32c6 3 tahun lalu
uart_hal.c 746f4b814c uart: move frequency of clock sources out of HAL 3 tahun lalu
uart_hal_iram.c 753a929525 global: fix sign-compare warnings 5 tahun lalu
usb_dwc_hal.c d69d1aafaf hal: Fix USB DWC HAL host channel halt race condition 3 tahun lalu
usb_hal.c ea6710ce98 soc/hal: add tinyusb support esp32s3 4 tahun lalu
usb_phy_hal.c 1fcd639224 usb: Add usb_phy driver to support operations on USB PHY 4 tahun lalu
wdt_hal_iram.c 9c37441b17 wdt: refactor wdt codes to use unified type 3 tahun lalu
xt_wdt_hal.c 4869b3cd4a WDT: Add support for XTAL32K Watchdog timer 4 tahun lalu

README.md

hal

The hal component provides hardware abstraction and implementation for targets supported by ESP-IDF.

include/hal

/include/hal contains header files which provides a hardware-agnostic interface to the SoC. The interface consists of function declarations and abstracted types that other, higher level components can make use of in order to have code portable to all targets ESP-IDF supports.

It contains an abstraction layer for ineracting with/driving the hardware found in the SoC such as the peripherals and 'core' hardware such as the CPU, MPU, caches, etc. It contains for the abstracted types. The abstraction design is actually two levels -- often somtimes xxx_hal.h includes a lower-level header from a xxx_ll.h, which resides in the implementation. More on this abstraction design in the hal/include/hal's Readme

target/include

Provides the implementation of the hardware-agnostic interface in the abstraction. Target-specific subdirectories exist for wildly different implementations among targets; while code that are common/very similar might be placed in the top-level of /<target>/include, using some amount of conditional preprocessors. It is up to the developers' discretion on which strategy to use. Code usually reside in source files with same names to header files whose interfaces they implement, ex. xxx_hal.c for xxx_hal.h.

As mentioned previously, the lower-level abstraction header xxx_ll.h resides in this directory, since they contain hardware-specific details. However, what these can do is provide some abstraction among implementations, so that more code can be moved to the common, non-target-specific subdirectories.

This can also contain target-specific extensions to the HAL headers. These target-specific HAL headers have the same name and include the abstraction layer HAL header via include_next. These extensions might add more function declarations or override some things using macro magic.