The bug will cause memory corrupted (the largest range is from 0x3ffc0000 ~ 0x3ffc8000),
some strange error will happen, like IllegalInstruction, LoadProhibited and .etc.
This commits adds the functions can_clear_transmit_queue() and
can_clear_receive_queue(). Closes#2906
The following bug are fixed:
- CAN_IO_UNUSED is now explicitly cast to enum type. Closes#2825
- Fix multiple documentation errors. Closes#2898, Closes#2794
- can_reconfigure_alerts() returns incorrect current_alerts. Closes#3028
- Add missing header file. Closes#3065
The requirements of pin capabilites is different for spi master and
slave. The master needs CS, SCLK, MOSI to be output-able, while slave
needs MISO to be output-able.
Previous code is for master only.
This commit allows to place other 3 pins than MISO on input-only pins
for slaves. Refactoring for spi_common is also included.
Resolves https://github.com/espressif/esp-idf/issues/2455
when running a query for a single txt, result entries were not created and attached to result structure. this issue was introduced when fixing memory leak in txt structure, which worked correctly for PTR queries, but caused trouble for TXT query.
List of changes:
* Corner case exceptions are properly handled to ensure release of memory occupied by security infrastructure
* fixed erroneous cleanup of security instance by protocomm_console
List of changes:
* Version endpoint now sends the set version string instead of verifying the incoming version string. This simplifies fetching version info from the provisioning application.
* esp_prov script updated to expect version string as response.
Added:
* set a secure version in app/bootloader.
* description anti-rollback to ota part
* emulate the secure_version write and read operations
* efuse_em partition.
* a description about a rollback for native_ota_example.
Closes: TW26335
Move existing core dump files into espcoredump component folder
Add KConfig, linker.lf, make and CMakeList.txt for new component
Existing functionality separated into core_dump_common, core_dump_flash, core_dump_uart
Update test_core_dump.c and make files to link it as unit test
Update according to review:
Move target and RTOS related functionality into separated file (core_dump_port.c).
Fix test logs and test elf files
Move existing core dump files into espcoredump component folder
Add KConfig, linker.lf, make and CMakeList.txt for new component
Existing functionality separated into core_dump_common, core_dump_flash, core_dump_uart
Update test_core_dump.c and make files to link it as unit test
Update according to review:
Move target and RTOS related functionality into separated file (core_dump_port.c).
This will be useful if a webserver is already running and the application
does not want protocomm to start a new instance.
Signed-off-by: Piyush Shah <piyush@espressif.com>
Currently, only erase operation performed by the application leads
to detection of NVS key partition as uninitialised. This change
adds additional checks for detecting partition as uninitialised,
when device boots first time right after encryption by bootloader.
Fix following WiFi bugs:
1. Fix a crash bug which is caused by WiFi static TX buffer alloc/free.
2. Fix the bug that iphone fails to connect to ESP32 AP by enabling AP BAR receiving.
3. Fix the bug that ESP32 station fails to connect some APs, such as Xiaomi hotspot etc,
after reset.
1. Cleanup the README of app_trace_to_host example based on the template.
2. Remove unused header files in the example.
3. Fix typos in public header file.
Files where stack protector is initialized should not be compiled with
stack protector enabled. This was done for Make but missing for CMake.
Fixes https://github.com/espressif/esp-idf/issues/2990.
Shortcircuit evaluation may cause skip of _mdns_strdup_check of any further question field, which after clear_rx_packet freed undefined memory.
Fixes https://ezredmine.espressif.cn:8765/issues/28465
This commit adds the ability for backtracing to trace from the itnerrupt to the
task stack, and across nested interrupts. Test cases have also been added.
New unit tests added
------------------------
**Local:** Local test uses the GPIO matrix to connect the master and the
slave on the same board. When the master needs the iomux, the master
uses the GPIOs of its own, the slave connect to the pins by GPIO matrix;
When the slave needs the iomux, the slave uses the GPIOs of its own, the
master connects to the pins by GPIO matrix.
- Provide a new unit test which performs freq scanning in mode 0. It
scans frequency of 1M, 8M, 9M and all frequency steps up to the maximum
frequency allowed.
**M & S**: Master & slave tests performs the test with two boards. The
master and slave use iomux or gpio matrix according to the config.
- Provide a new unit test which performs freq scanning in mode 0. It
scans frequency of 1M, 8M, 9M and all frequency steps up to the maximum
frequency allowed.
- Provide a new unit test which performs mode test with significant
frequencies. It tests mode 0,1,2,3 with low frequency, and the maximum
frequency allowed.
Paremeterized Test Framework
-----------------------------
The SPI has a lot of parameters, which works in the same process.
This framework provides a way to easily test different parameter sets.
The framework can work in two different ways:
- local test: which requires only one board to perform the test - master
& slave test: which generates two sub test items which uses the same
config set to cooperate to perform the test.
The user defines a (pair if master/slave) set of init/deinit/loop
functions. Then the test framework will call init once, then call loop
several times with different configurations, then call deinit.
Then a unit test can be appended by add a parameter group, and pass it into
a macro.
1. during parent selection, when scanning a MAP without ext-assoc IE, it will be handled as it has the same router BSSID as itself.
2. for MAP, when its client leaves, always post SYSTEM_EVENT_AP_STADISCONNECTED to mesh layer regardless of whether the client has passed the encrypted authentication or not.
Originally, when doing BLE active scan, Bluedroid will not report adv to
application layer until receive scan response. This option is used to
disable the behavior. When enable this option, Bluedroid will report
adv data or scan response to application layer immediately.
The following 2 compiler warnings are only reproducible when setting:
OPTIMIZATION_FLAGS = -Ofast
esp-idf/components/soc/esp32/rtc_clk.c:
In function 'rtc_clk_cpu_freq_get':
esp-idf/components/soc/esp32/rtc_clk.c:506:12:
error: 'freq' may be used uninitialized in this function
[-Werror=maybe-uninitialized]
return freq;
esp-idf/components/esp_ringbuf/ringbuf.c:
In function 'xRingbufferReceiveSplitFromISR':
esp-idf/components/esp_ringbuf/ringbuf.c:934:26:
error: 'pvTempTailItem' may be used uninitialized in this function
[-Werror=maybe-uninitialized]
*ppvTailItem = pvTempTailItem;
Closes https://github.com/espressif/esp-idf/pull/2878
1. add support for ESP32 DTE
2. add support for SIM800/BG96 DCE
3. add PPPoS setup procedure
4. add support for SMS
5. add mqtt example after PPP connection established
Previously, hardware SHA engine "locks" were mutex semaphores. This meant that the task which
started a particular SHA session (in hardware) needed to finalise that session, or an invalid
FreeRTOS state was created.
Replace with binary semaphore which can be shared between tasks.
Includes a unit test, but unit test doesn't crash even without this fix
(some other unknown condition is required).
Due to a hardware limitation in ESP32, the first four bytes of some
CSI data is invalid, not the last four bytes.
Correct a mistake of CSI sub-carrier index in documentation.
Bootloader used to calculate the number of cache pages assuming that
load address was aligned, while in reality load address for DROM and
IROM was offset by 0x20 bytes from the start of 64kB page. This
caused the bootloader to map one less page if the size of the image
was 0x4..0x1c less than a multiple of 64kB.
Reported in https://esp32.com/viewtopic.php?f=13&t=6952.
1. detect and fix root conflicts when router BSSID is not set.
2. when root can not connect to the router due to NO_MORE_STAS(reason code:5), root will stop re-connection and perform MESH_NWK_LOOK_FOR_NETWORK.
3. wifi: fix the disconnection caused by receiving a deauth frame from non-parent node during scanning.
4. fix routing table redundant issue.
5. modify the max routes limitation from 300 to 1000.
6. wifi: fix ap does not deauth sta which has not completed the 4-way handshake.
Note : In future consider deprecating usage of -1 for setting
buffer length equal to string length in APIs httpd_resp_send()
and httpd_resp_send_chunk()
1. fix error when fading is too fast
2. fix error when setting duty and update immediately
3. update register header file to be in accord with TRM
closes https://github.com/espressif/esp-idf/issues/2903
esp-idf/components/freemodbus/modbus_controller/modbus_controller.c: The MB_INST_MAX_SIZE is changed to max value=(65535*2);
Update support for coils read into freemodbus.c;
TW#28143
Closes https://github.com/espressif/esp-idf/issues/2884
1. esp32-pico use standard spi driver to access psram
2. for esp32-pico, flash and psram share the clock
3. for esp32-pico, psram cs io can be overwrite via menuconfig
timer_process_alarm function of esp_timer holds a spinlock for the
entire duration of its operation, except for the time when timer
callback function is called. It is possible that when
timer_process_alarm releases the spinlock, a higher priority task may
run and delete the timer. Then the execution will return to
timer_process_alarm, and this will either cause a crash, or undesired
execution of callback after the timer has been stopped or deleted.
To solve this problem, add a mutex which will prevent deletion of timers
while callbacks are being dispatched.
esp32: unforce wifi if receiving beacon with no data buffered in dream state and reduce force receiving broadcast data time
See merge request idf/esp-idf!3963
state and reduce force receiving broadcast data time
1. If receiving beacon which indicates that there is no data buffered,
do not force to receive WiFi data.
2. If receiving beacon which indicates that there is broadcast data
buffered, reduce the time to force receiving broadcast data.
1. when no parent is found, send probe request via broadcast.
2. fix memory leak caused by the remove announcement being sent is not released when esp_mesh_stop() is called.
3. fix modify IE encrypt after mesh is started.
4. ignore esp_mesh_connect() if mesh automatic reconnection is enabled.
5. fix reason is cleared before vote is done.
Fixes: https://github.com/espressif/esp-idf/issues/2811
The warning print "NULL value" is only kept for event
BTC_GATTS_ACT_SET_ATTR_VALUE as this can be useful in case user forgets
to set attribute value
Signed-off-by: Hrishikesh Dhayagude <hrishi@espressif.com>
1. fix STAs can not detect disconnection from AP when encrypt transmission is used.
2. fix can not find hidden APs.
3. for root, modify the active scan time to 120ms.
4. remove all rc when clear parent Wi-Fi configuration.
5. fix error in checking Wi-Fi commit ID.
Update freemodbus component file esp-idf/components/freemodbus/port/portserial.c to remove UART mode settings;
Move UART mode settings into esp-idf/examples/protocols/modbus_slave/main/freemodbus.c
Move UART pin settings from Component config into example Kconfig.projbuild file
Move setup of UART port pins from freemodbus component into example file
TW#27721
Closes https://github.com/espressif/esp-idf/issues/2784#issuecomment-443600157
* Prevents section type conflict errors if (say) const & non-const data
is put into the same section (ie with DRAM_ATTR)
* Allows linker --gc-sections to remove unused custom sections
1. Add missing get function to RMT API: rmt_get_idle_level().
2. Suppress error message from rmt_wait_tx_done() if wait_time==0 (allows for polling).
3. Remove the blank lines between parameter lists.
Merges https://github.com/espressif/esp-idf/pull/2666
* Call esptool directly not via subprocess
* Use the same serial port instance for listener thread and esptool
* Includes some refactoring for encapsulation of App vs DUT members
This fix includes following changes:
1. Fix the bug that esp_restart()/esp_wifi_stop() sometimes fails in WiFi/BT coexist mode.
2. Add a timer for WiFi stop and stop WiFi forcibly once the timer expires.
Hostname option has been removed from dhcp discover since IDFv3.2.
But it remains in dhcp request due to which ESP32 can not get IPv4 address
from some APs. Re-add hostname option to dhcp discover to solve this issue.
1. start an esp_timer on entering sleep to acquire pm_lock before wake up from modem sleep
2. decrease the clock division of XTAL fed to bluetooth low power clock from 32us to 2us period to allow to work under 240MHz Max CPU frequency
3. decrease the minimum sleep duration threshold to allow shorter bluetooth modem sleep period, especially for BLE with short connection interval
4. reconfigure bluetooth baseband(BT-BB) settings after PHY/RF init upon waking up from modem sleep to avoid packet RX/TX performance degradation
On enabling flash encryption, OTA fails with magic byte error in the second chunk
if the http data is split into two or more chunks and first chunk is less than 16.
When std::bind is used, it requires inclusion of <functional> header.
This was not mandatory with earlier versions of g++ (4.x), may be because they
had experimental support for c++11.
A workaround to reset BBPLL configuration after light sleep. Fixes the
issue that Wi-Fi can not receive packets after waking up from light
sleep.
Ref. https://github.com/espressif/esp-idf/issues/2711
When ethernet enable again after disable it before, phy init will report timeout.
The cause of this problem is that the enabling of emac clock is too late, and should be placed before phy init.
1. Fix interrupt watchdog timeout in bluetooth "btdm_bb_isr"
2. Fix BLE assert(512) or assert(1536) in rwble.c at line 222
3. Update librtc.a to fix BLE assert(512) in rwble.c at line 222
The #1 and #2 occurs random.
The #3 bug occurs in certain scenario:
1. If Wifi start softap and BLE is working
2. If wifi start station, but do not use normal station operation, such
as just use espnow, while BLE is working
3. Any other scenario, that wifi works without use software coexist
operation, while BLE is working(such as do advertising and ...)
4. update libcoexist.a version to v1.1.2
Added a new structure esp_app_desc_t. It has info about firmware:
version, secure_version, project_name, time/date build and IDF version.
Added the ability to add a custom structure with a description of the firmware.
The esp_app_desc_t is located in fixed place in start of ROM secotor. It is located after structures esp_image_header_t and esp_image_segment_header_t.
app_version is filed from PROJECT_VER variable (if set in custom make file) or PROJECT_PATH/version.txt or git repo (git describe).
Add API to get app_desc from partition.
closes https://github.com/espressif/esp-idf/issues/2494
closes https://github.com/espressif/esp-idf/pull/2493
closes https://github.com/espressif/esp-idf/pull/2496
1. Change bus reset to handle interrupted READ sequences.
2. Slow down I2C to 100khz during reset
3. If a SLAVE device was in a read operation when the bus was interrupted, the SLAVE device is controlling SDA.The only bit during the 9 clock cycles of a byte READ the MASTER(ESP32) is guaranteed control over, is during the ACK bit period.
If the SLAVE is sending a stream of ZERO bytes, it will only release SDA during the ACK bit period. The master(ESP32) cannot generate a STOP unless SDA is HIGH. So, this reset code synchronizes the bit stream with, Either, the ACK bit, Or a 1 bit.
I am stealing this delay coding from @jeremyherbert #2493 pr.
2. Change Bus Reset to handle interrupted READ sequences.
The current code does not handle interrupted READ cycles.
If a SLAVE device was in a read operation when the bus was interrupted, the SLAVE device is controlling SDA.
The only bit during the 9 clock cycles of a byte READ the MASTER(ESP32) is guaranteed control over, is during the ACK bit period.
If the SLAVE is sending a stream of ZERO bytes, it will only release SDA during the ACK bit period. The master(ESP32) cannot generate a STOP unless SDA is HIGH.
So, this reset code synchronizes the bit stream with, Either, the ACK bit, Or a 1 bit.
3. fix typo
correct `sda_id` to `sda_io` in `i2c_master_clear_bus()` @ryan-ma found it. This typo was generated when I manually edited this patch on GitHub, I should have done a Copy/Paste operation!
1. Use BIT[7:5] of EID to determine psram size
2. Add ID support for 16Mbit psram
3. Remove module reset on SPI1
4. Confirmed with the vendor that only the old 32Mbit psram need special clock timing. For other psram chips, we should use standard QPI mode.
1. add network channel switch function.
- users can obtain the new channel through the event MESH_EVENT_CHANNEL_SWITCH.
- the entire network will be moved to the same channel as the router without user intervention.
- if no router is in the network, users can call esp_mesh_switch_channel() on the root side to
move the entire network to their desired channel.
2. support not configuring the network channel.
3. support not configuring the router BSSID even if the router is hidden.
4. add allow_channel_switch to mesh configuration.
- if the channel is not specified, this value will be ignored.
- if the channel is specified and this value is set, when "fail" (mesh_attempts_t) times of parent selection
or look for networks are reached, device will change to perform a full channel scan for networks that could join.
- if the channel is specified and this value is set to 0, when a root is not elected, channel switch is not allowed.
but when a root appears, the root performs a full channel scan during the process of connecting to the router,
so even allow_channel_switch is set to 0, the root may still switch channel and eventually the entire network
changes channel.
5. add allow_router_switch to mesh router configuration.
- if the BSSID of router is not specified, this value will be ignored.
- if the BSSID of router is specified and this value is set, when the router of this specified BSSID fails to be found
after "fail" (mesh_attempts_t) times, the entire network is allowed to switch to another router with the same SSID.
6. modify the root to perform a full channel scan when esp_wifi_connect().
7. support handling beacon without DS Paramter Set.
The DMA cannot receive data correctly when the buffer address is not
WORD aligned. Currently we only check whether the buffer is in the DRAM
region.
The DMA always write in WORDs, so the length arguments should also be
multiples of 32 bits.
A check is added to see whether the buffer is WORD aligned and has valid
length.
The driver decide whether use MOSI/MISO phases according to the buffer
address together with the SPI_TRANS_USE_*DATA. However someone may assue
that these phases will be skipped when the ``length``/``rxlength`` is
set to 0. In fact it is a feature that ``rxlength`` is allowed to be
set to 0 when tx and rx have the same length, and the driver fill the
``rxlength`` to ``length``.
An error check is added when the rxlength is 0 but there is data to be
sent.
It has been observed that, in case of underflow (data unavailability) in
I2S transmission, previously filled up tx descriptors continue to get
transmitted on line, causing noise in case of audio use case.
This change adds optional `tx_desc_auto_clear` field during I2S driver intialization
than can zero initialize tx descriptor in case of underflow situation in
interrupt handler itself.
Closes: https://github.com/espressif/esp-idf/issues/1789
Fix some WiFi bugs:
1. Enable RX BAR
2. Fix the bug that ESP32 AP negotiates with iphone to 11g
3. Fix the bug that ESP32 STA has ap_loss because CMCC AP contains two SSID
Don’t allow the compiler to convert malloc + memset into calloc,
causing a recursive call in _calloc_r. Fixes crash when building with
-O2 optimization level.
1. fix failture of mesh stop caused by block-sending.
2. fix when FIXED_ROOT is set, 2nd layer devices can not receive mesh event ESP_ERR_MESH_NO_PARENT_FOUND.
3. fix when FIXED_ROOT is set and the root turns off mesh function, 2nd layer devices do not look for new parents.
4. add APIs esp_mesh_disconnect() and esp_mesh_connect().
5. disconnect from parent/router when the DSSS channel in received beacon is different from the home channel.
6. remove nvs task to release 3k bytes memory.
Introduced in 9c23b8e5 and 4f87a62f. To get higher speed, menuconfig
options are added to put ISR and other functions into the IRAM. The
interrupt flag ESP_INTR_FLAG_IRAM is also mistakenly set when the ISR is
put into the IRAM. However callbacks, which are wrote by the user, are
called in the master and slave ISR. The user may not be aware of that
these callbacks are not disabled during flash operations. Any cache miss
during flash operation will cause panic.
Essentially IRAM functions and intrrupt flag ESP_INTR_FLAG_IRAM are
different, the latter means not disabling the ISR during flash
operations. New bus_config flag intr_flags is offered to help set the
interrupt attribute, including priority level, SHARED, IRAM (not
disabled during flash operations). It introduced a small BREAK to
IDFv3.1 (but the same as IDFv3.0) that the user has to manually set IRAM
flag now (therefore he's aware of the IRAM thing) to void the ISR being
disabled during flash operations.
If zero-overhead loop buffer is enabled, under certain rare conditions
when executing a zero-overhead loop, the CPU may attempt to execute an invalid instruction. Work around by disabling the buffer.
New unity component can be used for testing other applications.
Upstream version of Unity is included as a submodule.
Utilities specific to ESP-IDF unit tests (partitions, leak checking
setup/teardown functions, etc) are kept only in unit-test-app.
Kconfig options are added to allow disabling certain Unity features.
transport_mode accepts enum httpd_ssl_transport_t instead of true/false.
This will allow for extension to dual mode (server running on both secure and insecure ports) in the future.
* http_sess_set_*_override APIs are now the only ones available to set custom recv/send/pending functions
* Fixed side effects to using http_sess_set/get_context inside URI handlers
Changes:
- renamed `httpd_free_sess_ctx_fn_t` to `httpd_free_ctx_fn_t`
- added a `httpd_handle_t` argument to `httpd_send_func_t` and `httpd_recv_func_t`
- internal function `httpd_sess_get()` is no longer static, as it's used in other
files besides httpd_sess.c
Bug fixes:
- removed a trailing semicolon from `HTTPD_DEFAULT_CONFIG()`
- fixed issue with failed `select()`, now it automatically closes invalid sockets
instead of shutting down the entire server
New features:
- `httpd_resp_send()` and `httpd_resp_send_chunk()` now accept -1 as length to use
`strlen()` internally
- added `httpd_sess_set_ctx()` to accompany `httpd_sess_get_ctx()`
- added a "transport context" to the session structure (next to user context)
- added `httpd_sess_{get,set}_transport_ctx()` to work with this transport context
- added "global user context" and "global transport context" stored in the server
config (and then the handle); supports a user-provided free_fn
- added a "pending func" to e.g. check for data in the transport layer receive
buffer
- added functions `httpd_set_sess_{send,recv,pending}_override()` that target
a session by ID (i.e. not using a request object)
- added `httpd_set_pending_override()`
- added a "open_fn" and "close_fn" - functions called when creating and closing
a session. These may be used to set up transport layer encryption or some other
session-wide feature
Background
Softap will send connected event after receive assoc request as before, however, STA didn't connect to softAP if need security. As our mesh design, it will send data packet after receive connected event, so change the current behavior, softAP will send connected event if have encryption
Support for HSPI to output clock for 4M SPIRAM introduced regression
in clock configuration affecting SPIRAM access with 80MHz clock. This
commit fixes the issue.
1. call esp_timer_get_time and ref_clock_get in the same order on
start and in the loop
2. disable interrupts when calculating delta between ref_clock
and esp_timer
3. ensure both functions are in cache before calculating the delta
mdns queries did not work properly when send imeadiately after set_hostname, which cuased reinit of pcb and therefore restarted probing, so search packets were blocked until probing finished
closes#2507, closes#2593
1. Fix the bug that disable controller suddenly cause crash when ble is working. (585cfba1)
2. Fix the bug that when disable controller, it will cause wifi cannot RX, TX timeout, buffer lack and etc. (f8546145)
It is an ESP specific FreeRTOS feature that the ISR is always executed
on the core which calls the interrupt register function. In the SPI
driver, the function is always called in the bus initialization
function.
Hence, the ISR will be executed on the core which initialize the driver.
If the core is starved due to higher priority ISRs, or the interrupt is
disabled on the core (spinlock called, etc.), the ISR will not get
executed and SPI transactions will not be handled.
(MINOR CHANGE)
Resolves https://github.com/espressif/esp-idf/issues/2432.
The MISO signal will be delayed if the GPIO matrix is enabled.
However, delay also comes from the slave.
Previous code only considers the former case, and assume the frequency
limitations is only violated when GPIO matrix is used.
Now we are able to calculate the freq limit when extenal MISO delay is
given (feature introduced in 9c6c6ec34ab0641ace89aeb9b1a133eb6fae1a18).
The frequency limit is lower when the external MISO delay is large, and
the limit is likely to be violated even with IOMUX.
Resolves https://github.com/espressif/esp-idf/issues/2690.
1. If L2_TO_L3_RX_BUF_MODE is not selected, we must assign l2_owner explictly before we call pbuf_free.
2. free intr resource in esp_eth_deinit
Closes https://github.com/espressif/esp-idf/issues/2670
1. fix ap_loss that occurs when the parent turns off the mesh function and becomes a normal WiFi with a different SSID.
2. add an event MESH_EVENT_NETWORK_STATE that contains information about whether there is a root in the current network.
3. modify the mechanism of mesh IE update.
4. fix a problem in the process of re-voting to select the root, the device that does not meet the conditions of being a root votes for itself.
5. fix an issue that occurs in esp_mesh_recv_toDS() when stopping the mesh.
6. when the user specifies a parent for the device, the device will set the authmode and password of its AP mode to the same value as the specified parent.
7. add two disconnected reason codes MESH_REASON_EMPTY_PASSWORD and MESH_REASON_PARENT_UNENCRYPTED.
This commit resolves a blocking in esp_aes_block function.
Introduce:
The problem was in the fact that AES is switched off at the moment when he should give out the processed data. But because of the disabled, the operation can not be completed successfully, there is an infinite hang. The reason for this behavior is that the registers for controlling the inclusion of AES, SHA, MPI have shared registers and they were not protected from sharing.
Fix some related issue with shared using of AES SHA RSA accelerators.
Closes: https://github.com/espressif/esp-idf/issues/2295#issuecomment-432898137
When light sleep is finished on one CPU, it is possible that the other
CPU will enter light sleep again very soon, before interrupts on the
first CPU get a chance to run. To avoid such situation, set a flag
for the other CPU to skip light sleep attempt.
Tickless idle/light sleep procedure had a bug in single core mode.
Consider the flow of events:
1. Idle task runs and calls vApplicationIdleHook
2. This calls esp_vApplicationIdleHook, which calls esp_pm_impl_idle_hook, and pm lock for RTOS on the current core is released.
3. Then esp_vApplicationIdleHook calls esp_pm_impl_waiti, which checks that s_entered_light_sleep[core_id]==false and goes into waiti state.
4. Some interrupt happens, calls esp_pm_impl_isr_hook, which takes pm lock for RTOS. PM state goes back to CPU_FREQ_MAX.
5. Once the interrupt is over, vApplicationIdleHook returns, and Idle task continues to run, finally reaching the call to vApplicationSleep.
6. vApplicationSleep does not enter light sleep, because esp_pm_impl_isr_hook has already changed PM state from IDLE to CPU_FREQ_MAX.
This didn’t happen in dual core mode, because waiti state of one CPU was interrupted by CCOMPARE update interrupt from the other CPU, in which case PM lock for FreeRTOS was not taken.
Fix by inverting the meaning of the flag (for convenience) and only setting it to true when vApplicationSleep actually fails to enter light sleep.
Having two different spinlocks is problematic due to possibly
different order in which the locks will be taken. Changing the order
would require significant restructuring of kernel code which is
undesirable.
An additional place where taking xTickCountMutex was needed was in
vApplicationSleep function. Not taking xTickCountMutex resulted in
other CPU sometimes possibly advancing tick count while light sleep
entry/exit was happening. Taking xTickCountMutex in addition to
xTaskQueueMutex has shown a problem that in different code paths,
these two spinlocks could be taken in different order, leading to
(unlikely, but possible) deadlocks.
1. When WIFI task or other high priority task blocks the Bluetooth task, ACL RX buffer will use up, ACL RX buffer ptr will point to null and will never point to a valid adress. Causing errors in Bluetooth.
2. hcimsgs.h used whether flow control is on or off
Introduced in 97e3542947.
The previous commit frees the IRAM part when single core, but doesn't
change the memory layout functions. The unit test mallocs IRAM memory
from the heap, accidently into the new-released region, which doesn't
match the memory layout function.
This commit update the memory layout function to fix this.
Problem Decribe
The problem happenned when do wps with a mikrotik router
1. router always want to do connect with 32 without EAP-WSC step
2. after 4 way timeour, 32 crash
Root Cause
The reason why can not start EAP-WSC step is router's check method is RSN > WPA > WPS, when it found there include RSN and WPS in assoc, it will choice do 4 way rather than WPS
The reason of second problem is 32's EAPOL start timer didn't stop and send EAPOL start to a null pointer
Soultion
1. remove RSN and WPA ie when do WPS step
2. check mac address's pointer before send EAPOL start
closes: https://github.com/espressif/esp-idf/issues/2382
