[DeviceDrivers] remove unused-assign code

[components][drivers]wlan打印ap信息更加友好

rx_fifo->is_full已经满时继续更新rx_fifo->get_index

Feature v310

[components][sfud] Fix RT_DEBUG_SFUD macro to bool type.

[components][sfud] Update log info.

Signed-off-by: MurphyZhao <d2014zjt@163.com>

fixed warning when only enable finsh shel…

[drivers]Fix put_force bug

部分class还不支持HS，RNDIS存在暂时无法解决的已知bug

- 增加winusb对HS的支持。其余class还在完善中

fix cdc_vcom.c notify receive data.

cdc_vcom dma 发送流程修改

[Components][Drivers][USB Device]fix ep assign bug

* [Components] driver usb vcom fix error for console

修复一个 bug 该bug曾导致在设备不断电但主机重新枚举设备的情况下会导致内存泄漏并无法接收数据

1. Use float type for clock_cpu_getres() return value;
2. Add clock_cpu_microsecond/millisecond APIs.

可以挂U盘了 欢迎测试鲁棒性已打通F4全系列HOST驱动（OTGFS）

without finsh]

[DeviceDriver][Serial] Fix serial open flag lost when device reopen.

协议栈增加允许class在windows环境下枚举时向系统注册附加属性。并在winusb class中提供范例（注册GUID信息）

Core]修复了协议栈在ep0请求大于端点描述最大包时无法正确读取的bug
增加了rndis class LWIP on USB

Windows下没驱动 linux和mac下免驱

Fix compile error when RT_USING_POSIX_TERMIOS is not define.

1.Fix poll rx issue when data is full.
2.Add TCFLSH and FIONREAD support.

[Mod] Modify wifi_usage help message

There is a memory leak issue when close a pipe.

[Add] Change network_mode value according to the finsh shell command

data bits should get from CSIZE.

[wlan cmd][lwip ip addr] modify

[DeviceDrivers]添加pin开漏和下拉输入宏

[DeviceDrivers]添加pin开漏和下拉输入宏

This reverts commit cfa87cf938.

[drv][mmcsd] Undo Changes.

增加了pin设备的模式开漏和下拉
添加的HAL库的bsp分支

[drv][mmcsd] Add component initial.

1. Add macro check in rtdebug.h;
2. Use RT_USING_POSIX for poll/select, stdin etc.
3. Split dfs_posix.h to dfs_posix.h, dfs_poll.h and dfs_select.h;

1. Change 'rt_uint8_t' type of cmd to 'int';
2. Add waitqueue;
3. Split device ipc header files;

[Device Drivers] delete an useless %s.

[BSP] stm32f10x add watchdog driver

[DeviceDrivers] Add audio driver.

Fix a bug in function sdio_unregister_driver

[DeviceDrivers] pin: add irq APIs.

修复I2C读写函数，I2C传输失败时返回成功的问题

uart configure shall not been performed if uart is not open.

Improve serial DMA rx mode. #628

patched by FH.

Add MMC/SD change support, which patched by FH.

function `rt_pin_write` is invoked by  function `can_bus_hook`, and it should to be initialized by gpio.c.
but gpio.c was not added in SConscript

fix reset serial receive interrupt flag when close serial

[DeviceDrivers] Add hardware timer framework

add w25q80 support to spi flash

Remove dataqueue/pipe if not enable RT_USING_HEAP, supply the missing `not`.

fix: completion wait after, maybe can't clean the flag.

[BSP] Correct pin register name problems

[Driver/ringbuffer]: Fix put_force bug

OXape reports: http://www.rt-thread.org/phpBB3/topic3939.html
          driver/ringbuffer: when data length is bigger than space length
          for rb, the read_index in rb is not update.
    When length > space, update the read_index, the bug can be fix, and
          works fine.

2. Fix data transfer size calculate error issue;

2.adjust some viable and micro name
3.some other small fix

This reverts commit 5aeedc4f3a, reversing
changes made to 3d80e414ff.

This merge breaks every uart driver in all BSPs. @bright-pan , is there
any way to get this done without breaking existing code?

Add hardware flow support.
Use new struct serial_ringbuffer.

Pass USB CV test verification;
Code cleanup;

This reverts commit 07bd09fc0f.
The validation of the context is done with in `rt_set_errno`. So it's
safe to call it here.

The errno is associated with threads. It will crash the thread if we set
it in interrupt context.

Return early if the size is 0 as there is nothing to do.

*buffer) with buffer pointer

When forwarding rx/tx callback from the underlaying device(pipe), the
"dev" argument should be the portal. So the portal callback could think
itself as called.

It does not make sense to open portal without a flag. One should open a
portal with RT_DEVICE_OFLAG_RDWR in most cases.

Portal is a device that connect devices. Currently, you can only connect
pipes in portal. Pipes are unidirectional. But with portal, you can
construct a bidirectional device with two pipes.

Pipe have many differences with char device. The main difference is
altough pipe have both read and write, it is unidirectional in nature.

Some reader(FinSh again) would like to block on a semaphore which is
released in rx_indicate. So we should invoke rx_indicate in
_rt_pipe_resume_reader.

The previous implementation will always blocks the reader/writer.
However, at least FinSh would expect the device to be nonblocking ---
read should return 0 when there is no data in it.

Add the APIs that will discard the old data when rb is full.

RT_RINGBUFFER_SIZE could mean "the size of the whole buffer", "the size
of the empty space" or "the size of the data". Moreover, it's never a
micro anymore. Change it to rt_ringbuffer_data_len before it's too late.
Also, RT_RINGBUFFER_EMPTY is changed to rt_ringbuffer_space_len.

This provide the possibility that allocate the buffer of the ringbuffer
on a specific region, instead of always mallocing it. It also bring us
the benefit of using pipe device on the systems without heap.

K60 fxxxx

Some driver will emit USB_MSG_DATA_NOTIFY before the USB get configured.
Filter out those events.

When the core received an USB_MSG_PLUG_OUT event, it will stop all the
classes. This make a chance that the classes could get rid off doing
useless stuff while the USB cable is plugged out.

usbdevice/core: add reset function to support hotplug

When the USB got RESET packet from the host and the address is setup,
all the classes will got reset. The reset is done by class stop and than
class run. So the classes should reset their internal state in
class_{run,stop}.

Besides, the USB device driver could post a USB_MSG_RESET message on
every RESET packet.

cdc_vcom: reset the vcom state in proper cases

Reset the vcom state in class_{run,stop} and when the PC is not
receiving data from me.

For pull request

Although currently the only message send to the queue is struct
udev_msg, in order to keep backward compacity and for extention in the
future, we set the size of message to 32.

It also add two configurations for the USB device even loop thread:

    RT_USBD_THREAD_STACK_SZ to set the stack size, default to 2048
    RT_USBD_THREAD_PRIO     to set the priority, default to 8

You can overwrite the default values in rtconfig.h

serial: use RT_SERIAL_RB_BUFSZ to define the size of ring buffer.

We start the sending transaction in SOF handler. But if the data is
already sending, start an other transaction will cause data lose.
Implement a state machine is cdc_vcom and avoid that.

Sort the switch cases by the frequency of the events.

The data filled into dcd_ep_write does not to be limited by
MaxPacketSize.

This commit set the buffer for packet to CDC_MaxPacketSize which is a
reasonable value for it. However, maybe we should make
CDC_{RX,TX}_BUFSIZE configurable as well.

The new implementation use the mirroring method to distinguish full
buffer and the empty buffer. It also support buffers of arbitrary size.

This could crash the program with -O1 and -O2 in MDK.

Add RT_MTD_ESRC definitions. If the source page has issue when copying a page, the low level can return this error code.

remove product ID

add a dcd operation to send status in control transfer

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