Commit Graph

22 Commits

Author SHA1 Message Date
Xiang Xiao
d85cf99a65 bt_uart: Retry the lower half operation if -EINTR is returned
to handle the partial write and read gracefully

Signed-off-by: Xiang Xiao <xiaoxiang@xiaomi.com>
2020-12-28 10:38:03 +01:00
Xiang Xiao
1d8397a36d bt_uart: Don't call rxdrain in the successful path
because the physical uart bus may receive the next packet asynchronously

Signed-off-by: Xiang Xiao <xiaoxiang@xiaomi.com>
2020-12-28 10:38:03 +01:00
Xiang Xiao
ca5d8d8660 bt_uart: Fix the minor typo in bt_uart driver
Signed-off-by: Xiang Xiao <xiaoxiang@xiaomi.com>
2020-12-28 10:38:03 +01:00
Xiang Xiao
6a30d7ad6b bt_uart: Remove static variables in btuart_rxwork
to support mulitple bluetooth controllers

Signed-off-by: Xiang Xiao <xiaoxiang@xiaomi.com>
2020-12-28 10:38:03 +01:00
Xiang Xiao
f992ff37c3 Fix nxstyle warning
Signed-off-by: Xiang Xiao <xiaoxiang@xiaomi.com>
2020-12-28 08:50:16 +01:00
Xiang Xiao
3dfb897ed1 bluetooth: Remove the unnecessary forward reference
Signed-off-by: Xiang Xiao <xiaoxiang@xiaomi.com>
2020-12-28 08:50:16 +01:00
Xiang Xiao
6a3c2aded6 Fix wait loop and void cast (#24)
* Simplify EINTR/ECANCEL error handling

1. Add semaphore uninterruptible wait function
2 .Replace semaphore wait loop with a single uninterruptible wait
3. Replace all sem_xxx to nxsem_xxx

* Unify the void cast usage

1. Remove void cast for function because many place ignore the returned value witout cast
2. Replace void cast for variable with UNUSED macro
2020-01-02 10:54:43 -06:00
Dave Marples
05bbbec3e1 Add support for the BCM43438A1 Bluetooth capability. It also adds a serial 'shim' to allow any regular serial port that can support a Bluetooth H4 interface (i.e. it has RTS/CTS) to be used to drive a Bluetooth device (Get a handle to it via hci_uart_getdevice("/dev/xxx") and then pass it to the btuart_register function.
Most of the bluetooth and wifi chips appear to need external firmware, and the 43438 is no exception. Fortunately, since Cypress got involved, these are much more straightforward to obtain and are shipped as part of their SDK, which is downloadable from their website.  Those firmwares are already provided as C arrays, so their names just need updating to;

const unsigned char bt_firmware_hcd -> The bt firmware array.

const int bt_firmware_len = sizeof(bt_firmware_hcd);
2019-09-21 07:16:37 -06:00
Gregory Nutt
fd844f8eac include/nuttx/wireless/bluetooth: Move Bluetooth header files from include/nuttx/wireless to include/nuttx/wireless/bluetooth for symmetry with other wireless technologies. 2018-04-29 12:43:09 -06:00
Gregory Nutt
9b83737821 drivers/wireless/bluetooth: Partition bt_uart.c adding bt_uart.h and bt_uart_generic.c. This will now permit adding HCI UART drivers that have custom initialization requirements.. such as parts the need to download a configuration file to the HCI UART before they are usable. 2018-04-19 17:48:04 -06:00
Gregory Nutt
8ab2eb55d6 drivers/wireless: Add option to dump I/O buffers. Fix calculation of response length. 2018-04-18 12:46:47 -06:00
Gregory Nutt
1224db454b arch/arm/src/stm32 and drivers/wireless/bluetooth: Fix some buffer management errors in HCI UART upper and lower halves. 2018-04-18 08:17:15 -06:00
Gregory Nutt
27f624d881 drivers/wireless/bluetooth: Default BAUD must be 115200, Fix logic in Rx callback, Rx callback must execute on work queue. Now sends and receives one command and response. But hangs on the next. 2018-04-17 13:07:28 -06:00
Gregory Nutt
0271a6a5e9 drivers/wireless/bluetooth: Fix error in testing if interrupts enabled. 2018-04-17 07:13:03 -06:00
Gregory Nutt
5d2c226675 wireless/bluetooth and drivers/wireless/bluetooth: Simply the driver registration/initialization interface. 2018-04-14 11:33:29 -06:00
Gregory Nutt
fa287e8863 Various fixes/changes from intial testing of the HCI UART on the STM32F4-Discovery board. Re-organized how the Blutetooth network driver is initialized. Added lots of new debug output. Add a new STM32 F4 Discovery configuration for testing the HCI UART. Various fixes to get through initialization (still does not). 2018-04-14 09:23:08 -06:00
Gregory Nutt
d25549ac54 This commit adds a Bluetooth HCI UART lower half driver for the STM32
Squashed commit of the following:

    arch/arm/src/stm32:  Add Kconfig options needed by the HCI UART.  Various fixes to finally get a clean error free compile with no unexpected warnings.
    arch/arm/src/stm32:  In HCI UART, use spin_lock_irqsave() instead of enter_critical_section() whenever possible.
    arch/arm/src/stm32:  In HCI UART, fix up naming of configurations so that they are unique.  Still needs Kconfig settings.  Modify logic so that there can be multiple HCI UARTs, some supporting DMA and some not.
    arch/arm/src/stm32:  Integrate watermarks and software Rx flow control into the HCI UART driver.
    arch/arm/src/stm32:  Eliminate some HCI UART UART configuration options.  Per the HCI UART spec, the link will b 8 data bits, no parity, 1 stop bit... Always.
    arch/arm/src/stm32:  Trivial cleanup
    arch/arm/src/stm32:  Fixes most initial compilation issues STM32 HCI UART driver.  Still need to set up USART configuration parmeters for HCI UART
    arch/arm/src/stm32:  Completes first cut at STM32 HCI UART driver.
    arch/arm/src/stm32:  Completes most of read logic for HCI UART.  Still needs to be able to block if no read data is available.  Still missing write and flush logic.
    drivers/wireless:    Remove txenable from HCI UART methods.  arch/arm/src/stm32:  Reorganize some structures in HCI UART.
    arch/arm/src/stm32:  Still messaging the HCI uart driver.
    arch/arm/src/stm32:  Some trivial renaming.
    arch/arm/src/stm32:  A little more HCI-UART logic.
    arch/arm/src/stm32:  Initial setup to support HCI-UART.  Little more than the serial driver with some name changes and a few things removed.
2018-04-13 10:36:23 -06:00
Gregory Nutt
15d033e32b drivers/wireless/bluetooth: Add a NULL device to support some very low level testing on the Simulator. 2018-04-03 09:00:18 -06:00
Gregory Nutt
7e05d5e9c7 wireless/bluetooth: Adds most of the logic to get the Tx path working. Still missing the logic to recover the Bluetooth connection structure given the destination address in the socket address. 2018-04-01 14:00:40 -06:00
Gregory Nutt
29a4a80f8c Squashed commit of the following:
wireless/bluetooth:  This completes the basic logic path that gets frames from the Bluetooth stack and into the network layer.
    wireless/bluetooth:  Fleshes out some of the network packet receive logic.
    wireless/bluetooth:  Replace buffer allocated with primitive allocator from ieee 802.15.4.
    wireless/ieee802154:  Fix a few typos.
    wireless/bluetooth:  More renaming in preparation for some real work.
    wireless/bluetooth:  Some trivial renaming; update comments
2018-04-01 12:25:30 -06:00
Gregory Nutt
0c007be4bd This comment adds (1) basic support for AF_BLUETOOTH sockets. The logic compiles but is still incomplete. Support for Bluetooth is general is still dependent on CONFIG_EXPERMIMENTAL because it is not yet ready for used.
Squashed commit of the following:

    wireless/bluetooth:  Some small changes that gets to a clean compile by just eliminating some incorrect implementations (still with a lot of warnings.  The logic is still incomplete but now not so lethal.
    wireless/bluetooth:  Restructuring:  Connection interfaces should internal to wireless/bluetooth.  include/nuttx/wireless/bt_conn.h removed and merged with wireless/bluetooth/bt_conn.h.  Several fix to get closer to bt_netdev.c compiling.  Need to design some not interfaces and use some existing interfaces to send and receiv packets.
    wireless/bluetooth: Some organization with some network device compile errors fixed.  Still not even close to compiling.
    net/bluetooth:  Fix numerous compile issues; Still open design issues with regard to the interface with the Bluetooth stack.
    wireless/bluetooth:  Create bt_netdev.c with a crude copy of mac802154_netdev.c.  Does not not even compile yet.
    include/nuttx/net:  Add bluetooth.h.  Content is not yet correct.
    net/netpackets:  Add bluetooth.h.  Update net/bluetooth to use new socket address definition.
    net/bluetooth:  Some fixes for initial build.
    net/bluetooth:  Add initial support for Bluetooth sockets.  The initial cut is just the a clone of the IEEE 802.15.4 socket support with name changes.
    net/ieee802154:  Fix some typos noted when cloning to create net/bluetooth.
2018-03-31 14:55:03 -06:00
Gregory Nutt
380d558795 Adds re-architected Bluetooth UART driver from the Intel/Zephyr arduino101_firmware_source-v1.tar package.
Squashed commit of the following:

    drivers/bluetooth:  Re-architect Bluetooth UART driver to follow upper/lower half model.  Completely untested.
    drivers/bluetooth:  Grr..  Another band-aid commit to stay in sync with master.  Why is this so difficult
    drivers/bluetooth:  Band-aid commit to stay in sync with master.  Lost it somehow.
    drivers/wireless/bluetooth:  A few changes, mostly thought experiments.
    drivers/wireless/bluetooth:  UART-based Bluetooth driver ported from the Intel/Zephyr arduino101_firmware_source-v1.tar package.  This initial commit is the original files in the NuttX build environment with changes to conform with the coding standard.  It should not even build.
2018-03-29 18:36:03 -06:00