Linker script generator produces build/esp32/esp32.common.ld from
components/esp32/ld/esp32.common.ld.in
This works fine until IDF is downgraded to V3.1 which uses components/esp32/ld/esp32.common.ld and
doesn't track build/esp32/esp32.common.ld at all.
At this point, the linker runs in the build/esp32 directory and "-T esp32.common.ld" picks up the
linker script generated .ld file, which causes mis-builds.
As reported on forums: https://esp32.com/viewtopic.php?f=13&t=9684&p=40105
Removed as much branching (if statements) from the
gpio_intr_service ISR, as possible and split the while loop into
two. Also forced writing the two status*_w1tc variables only once,
instead of every time after calling the external function hooks.
The measurements below, was done using the following tools:
Toolchain version: crosstool-ng-1.22.0-80-g6c4433a
Compiler version: 5.2.0
Here follows a comparison of the gpio_intr_service ISR's
execution time, using a DS1054 oscilloscope. All the time spent
calling external functions, via the function pointers
gpio_isr_func[gpio_num].fn, were disregarded.
With OPTIMIZATION_FLAGS = -Og, 1.34 uSeconds faster:
3.22 uSec (with this patch)
4.56 uSec (with commit 71c90ac4)
100 - (100 * 4.56 / 3.22) = 42% faster
With OPTIMIZATION_FLAGS = -Os, 1.65 uSeconds faster:
2.89 uSec (with this patch)
4.54 uSec (with commit 71c90ac4)
100 - (100 * 4.54 / 2.89) = 57% faster
Signed-off-by: Konstantin Kondrashov <konstantin@espressif.com>
Merges https://github.com/espressif/esp-idf/pull/2861
Issue: MDNS server initially sends probing packets to resolve naming confilicts with already registered service instances. In case of a conflict, instance name is altered and probing restarts. Original instance however wasnnot removed from the structure and upon service removal only one entry was removed and a dangling service might have been kept in the structure to bring about a crash.
Resolution: Keep only one instance of a service in the probing structure.
Closes IDF-498
possible race condition: user task runs mdns_init, which enables pcbs while mdns-task already created could execute enable/disable of the same pcbs if an appropriate system event received
mnds_free() initiates stop and delete timer tasks, which after locking the mutex could lead to a dead lock in case timer task executed before deleting the task, as it would wait indefinitelly for unlocking the mutex. This condition is fixed by calling _mdns_stop_timer without locking the mutex, because there's no need to protect any data when stopping and deleting the timer task
Closes https://github.com/espressif/esp-idf/issues/1696
Issue: mdns_service_add API allocates and queues an action to be processed in mdns task context; when allocation or queueing fails, allocated structure needs to be freed. Function _mdns_free_service did not only fee all the structures, but also updates packet data.
Resolution: Moved removal of packet data outside of _mdns_free_service function.
packets scheduled to transmit are pushed to action queue and removed from tx_queue_head structure, which is searched for all remaining services and while service is removed, then service questions/asnwers are also removed from this structure. This update fixes possible crash when packet is pushed to action queue, and when service is removed, its answers are removed from tx_queue_head, but not from action queue. this could lead to a crash when the packet is poped from action queue containing questions/answers to already removed (freed) service
Closes IDF-504
The current API is insufficient to allow the users to set different combinations of connection and discoverable mode
Users should be able to choose the device modes independently:
1. Connectable-
i. Non-connectable mode
ii. Connectable mode
2. Discoverable-
i. Non-discoverable mode
ii. Limited discoverable mode
iii. General discoverable mode
On flash program operation (either erase or write), if corresponding address has
cache mapping present then cache is explicitly flushed (for both pro and app cpu)
Closes https://github.com/espressif/esp-idf/issues/2146
mdns_search_once_t::lock is used to synchronize tasks (taken by one
task and given by the other) so it should not be a mutex.
Convert to semaphore, and rename to indicate its purpose.
A problem if the Python interpreter used for idf.py (or set via PYTHON
variable) didn't match
"/usr/bin/env python" (or the associated executable for .py files, on
Windows).
Closes https://github.com/espressif/esp-idf/issues/3160
Possibly also fix for https://github.com/espressif/esp-idf/issues/2936
Adds build system test to catch any future direct execution of Python in
the standard build process.
mdns_search_once_t::lock is used to synchronize tasks (taken by one
task and given by the other) so it should not be a mutex.
Convert to semaphore, and rename to indicate its purpose.
remove duplicated include from components/esp32/incliude/esp_core_dump.h
espcoredump/incliude/esp_core_dump.h:
fix signature of the functions esp_core_dump_to_uart() and esp_core_dump_to_uart();
add espcoredump into COMPONENT_PRIV_REQUIRES list
fix linker.lf file
1. Add Kconfig options to control task listing support.
2. Convert magic values (-1, -2) to named constants.
3. Convert spaces to tabs to match the rest of the file.
4. Rename getAllTasksHandle to getTaskInfo to reflect its purpose.
5. Add some curly braces for single line statements.
By default, if a URI handler changes the http session context,
the webserver internally clears the older context after the handler
returns. However, if applications want to change this behavior and
manage the allocation/de-allocation/freeing themselves and let the
server handle only the "socket close" case, this commit provides such
an option.
Fix following WiFi bugs:
1. Fix the bug that STA incorrectly deletes BA when receiving DelBA request
2. Add out of memory check
3. Fix the bug that STA incorrectly receives packets when scanning in connected status
This commit removes trailing semicolons following a while(0) from
function-like macros in IDF. This will force those macros to be called
with a semicolon when called.
When xPortGetCoreID() is called twice within a function,
it might only be called once after compilation. This
commit makes the inline assembly of the function volatile.
Closes#3093
In the situation when bootloader was compiled for 240MHz, and app was
compiled for 160MHz, and the chip is a revision 0 chip, the
bootloader will assume that the application has also been running at
240MHz. This will cause the chip to lock up later. Modify this to use
a run time check of DPORT_CPUPERIOD_SEL, which indicates which of the
PLL frequencies was used.
Closes https://github.com/espressif/esp-idf/issues/2731.
Previously, this compiler flag was not being applied
regardless of CONFIG_SPIRAM_CACHE_WORKAROUND setting.
Explanation: add_compile_options() only applies to
source files added after the function is run, or in
subdirectories added after the function is run. In
this case, no new source files were being added after
this function was run.
1. ref_clock used in unit tests occasionally produces time off by ~100
microseconds shortly after being started. Add a delay to let
ref_clock stabilise, until the cause is found.
2. Reduce roundoff error accumulation which would occasionally cause
the test to fail, by choosing an overflow value which can be divided
by APB frequency.
3. Move time sampling part of the test into an IRAM function to
reduce variations due to cache behavior.
4. Remove calculation of "standard deviation" in the test, as what was
calculated was not actually standard deviation, and it did not add any
useful information.
Previously when HashList was removing items, HashListBlocks were
removed lazily. This resulted in empty HashListBlocks dangling around
in full pages, even when all items have been erased. These blocks
would only be deleted when NVS was re-initialized
(nvs_flash_deinit/nvs_flash_init).
This change does eager cleanup instead, based on the code from
@negativekelvin offered in
https://github.com/espressif/esp-idf/issues/1642#issuecomment-367227994.
Closes https://github.com/espressif/esp-idf/issues/1642.
Added APIs :
* httpd_resp_send_err() : for sending HTTP error responses for error codes given by httpd_err_code_t. It uses TCP_NODELAY option to ensure that HTTP error responses reach the client before socket is closed.
* httpd_register_err_handler() : for registering HTTP error handler functions of type httpd_err_handler_func_t.
The default behavior, on encountering errors during processing of HTTP requests, is now to send HTTP error response (if possible) and close the underlying socket. User configurable handlers can be used to override this behavior for each error individually (except for 500 Internal Server Error).
Also fixed some typos.
Closes https://github.com/espressif/esp-idf/issues/3005
fix 3 bugs:
1. do BLE connect (both of slave and master), it mgiht cause crash due to there's much interrupts happens effect ble code running, for example, wifi run on the same core as bluetooth controller and wifi run throughtput test.
2. do BLE scan stop or adv stop or connection stop, it might cause ASSERT or crash due to memory corrupted in controller memory poll.
3. minor bug fix, not really effect bluetooth.
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.
