implement time syscalls
This change adds optional support for libc time functions.
New menuconfig option allows selecting FRC1, RTC, both, or none to be used for timekeeping.
- If only FRC1 timer is used, gettimeofday will provide time at
microsecond resolution. Time will not be preserved when going
into deep sleep mode.
- If both FRC1 and RTC timers are used, timekeeping will
continue in deep sleep. Time will be reported at 1 microsecond
resolution.
- If only RTC timer is used, timekeeping will continue in
deep sleep, but time will be measured at 6.(6) microsecond
resolution. Also the gettimeofday function itself may take
longer to run.
- If no timers are used, gettimeofday function will return -1 and
set errno to ENOSYS.
`times` function returns time derived from FreeRTOS ticks. It reports all as 'system' time, 'user' time is reported as zero.
`settimeofday` function may be used to set current time.
LwIP SNTP module is hooked up into the system through `settimeofday`/`gettimeofday`.
Example demonstrating this functionality is also added.
ref. TW6415
See merge request !168
Feature/openssl
The first openssl interface version based on mbedtls and some of these interface just have the function , not effectively.
See merge request !100
fix bug that deploy when test failed:
test report will be a single stage. The result of test report will be calculated from the result of all test jobs in test stage. So it will only deploy when all test job passed.
See merge request !140
Deep sleep: Any source named rtc_wake_stub* is linked as RTC wake stub code
Also move esp_deepsleep.h documentation out to docs/deep-sleep-stub.rst
See merge request !142
Fix spi_flash_write regression and nvs error recovery
In the previous set of changes related to spi_flash, new alignment checks were added. One of these checks, word alignment of `src` buffer in `nvs_flas_write`, was unnecessary. ROM `SPIWrite` function can handle unaligned source buffers.
This change caused an error to be returned to nvs for some legitimate write operations. Due to a bug in nvs, further write operations were possible, while the internal state of `Page` instance was broken. In WiFi functional tests, this inflicted havoc on the nvs partition, creating multiple duplicate items in the affected page. Because multiple duplicate items per page were never supposed to be handled during page load, duplicates were not removed. Thankfully this caused an assert at a later point in the loading process, otherwise this bug would be very difficult to detect.
This change set fixes the original spi_flash regression, handling of `INVALID` state of `nvs::Page`, and handling of duplicate items.
See merge request !161
Feature/tw8155 optimize tx flow control
1. Remove TX flow control in LWIP
2. Make the return value of esp_wifi_internal_tx consistent with LWIP error code
See merge request !164
API reference, first batch
This includes fixes to documentation formats in header files, some standalone doc fixes, necessary files for readthedocs, and instructions for documenting the code.
See merge request !162
146f5962 - Make the return value of esp_wifi_internal_tx consistent with LWIP error code so that
the up-layer can detect the out-of-memory error and take action accordingly, such do flow control.
