- 13 Apr, 2017 4 commits
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Rob Herring authored
There are no users of hci_uart_init_tty, so remove it. Signed-off-by:
Rob Herring <robh@kernel.org> Cc: Marcel Holtmann <marcel@holtmann.org> Cc: Gustavo Padovan <gustavo@padovan.org> Cc: Johan Hedberg <johan.hedberg@gmail.com> Cc: linux-bluetooth@vger.kernel.org Signed-off-by:
Marcel Holtmann <marcel@holtmann.org>
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Rob Herring authored
Add serial slave device binding for the TI WiLink series of Bluetooth/FM/GPS devices. Signed-off-by:
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Sebastian Reichel authored
This adds a driver for the Nokia H4+ protocol, which is used at least on the Nokia N9, N900 & N950. Signed-off-by:
Sebastian Reichel <sre@kernel.org> Signed-off-by:
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Sebastian Reichel authored
Add binding document for serial bluetooth chips using Nokia H4+ protocol. Acked-by:
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- 12 Apr, 2017 36 commits
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Sebastian Reichel authored
For bluetooth protocol driver only supporting serdev it makes sense to follow common practice and built them into their own module. Such modules need access to hci_uart_register_device and hci_uart_tx_wakeup for using the common protocol helpers. Signed-off-by:
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Sebastian Reichel authored
The device driver may need to communicate with the UART device while the Bluetooth device is closed (e.g. due to interrupts). Acked-by:
Pavel Machek <pavel@ucw.cz> Signed-off-by:
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Rob Herring authored
This adds library functions for serdev based BT drivers. This is largely copied from hci_ldisc.c and modified to use serdev calls. There's a little bit of duplication, but I avoided intermixing this as the ldisc code should eventually go away. Signed-off-by:
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Sebastian Reichel authored
This will be used by Nokia's H4+ protocol, which uses 2-byte aligned packets. Acked-by:
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Sebastian Reichel authored
Add serdev helper functions for handling of cts and rts lines using the serdev's tiocm functions. Acked-by:
Greg Kroah-Hartman <gregkh@linuxfoundation.org> Signed-off-by:
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Sebastian Reichel authored
Add method for getting and setting tiocm. Acked-by:
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Sebastian Reichel authored
Add method, which waits until the transmission buffer has been sent. Note, that the change in ttyport_write_wakeup is related, since tty_wait_until_sent will hang without that change. Acked-by:
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Sebastian Reichel authored
The UPF_BOOT_AUTOCONF flag is needed for proper flow control support. Acked-by:
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Patrik Flykt authored
The IPv6 stack needs to send and receive Neighbor Discovery messages. Remove the IFF_POINTOPOINT flag. Signed-off-by:
Patrik Flykt <patrik.flykt@linux.intel.com> Acked-by:
Jukka Rissanen <jukka.rissanen@linux.intel.com> Reviewed-by:
Luiz Augusto von Dentz <luiz.von.dentz@intel.com> Signed-off-by:
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Luiz Augusto von Dentz authored
Make netdev queue packets if we run out of credits. Signed-off-by:
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Luiz Augusto von Dentz authored
Consolidate code sending data to LE CoC channels and adds proper accounting of packets sent, the remaining credits and how many packets are queued. Signed-off-by:
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Luiz Augusto von Dentz authored
Rely on netif_wake_queue and netif_stop_queue to flow control when transmit resources are unavailable. Signed-off-by:
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Luiz Augusto von Dentz authored
Since l2cap_chan_send will now queue the packets there is no point in checking the credits anymore. Signed-off-by:
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Luiz Augusto von Dentz authored
There is no point in setting IFF_NO_QUEUE should already have taken care of setting it if tx_queue_len is not set, in fact this may actually disable queue for interfaces that require it and do set tx_queue_len. Signed-off-by:
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Luiz Augusto von Dentz authored
Just keep queueing them into TX queue since the caller might just have to do the same and there is no impact in adding another packet to the TX queue even if there aren't any credits to transmit them. Signed-off-by:
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Luiz Augusto von Dentz authored
This makes should make it more clear why a packet is being dropped. Signed-off-by:
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Luiz Augusto von Dentz authored
During chan_recv_cb there is already a peer lookup which can be passed to recv_pkt directly instead of the channel. Signed-off-by:
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Xinming Hu authored
Sanity check of interrupt number in interrupt handler is unnecessary and confusion, remove it. Reported-by:
Guenter Roeck <groeck@chromium.org> Signed-off-by:
Xinming Hu <huxm@marvell.com> Signed-off-by:
Amitkumar Karwar <akarwar@marvell.com> Signed-off-by:
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Xinming Hu authored
Host sleep handshake with device might been fail, disable platform wakeup interrupt in this case. Reported-by:
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Michael Scott authored
A status field in the skb_cb struct was storing a channel status based on channel suspend/resume events. This stored status was then used to return EAGAIN if there were packet sending issues in snd_pkt(). The issue is that the skb has been freed by the time the callback to 6lowpan's suspend/resume was called. So, this generates a "use after free" issue that was noticed while running kernel tests with KASAN debug enabled. Let's eliminate the status field entirely as we can use the channel tx_credits to indicate whether we should return EAGAIN when handling packets. Signed-off-by:
Michael Scott <michael.scott@linaro.org> Acked-by:
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Michael Scott authored
When adding 6lowpan devices very rapidly we sometimes see a crash: [23122.306615] CPU: 2 PID: 0 Comm: swapper/2 Not tainted 4.9.0-43-arm64 #1 Debian 4.9.9.linaro.43-1 [23122.315400] Hardware name: HiKey Development Board (DT) [23122.320623] task: ffff800075443080 task.stack: ffff800075484000 [23122.326551] PC is at expire_timers+0x70/0x150 [23122.330907] LR is at run_timer_softirq+0xa0/0x1a0 [23122.335616] pc : [<ffff000008142dd8>] lr : [<ffff000008142f58>] pstate: 600001c5 This was due to add_peer_chan() unconditionally initializing the lowpan_btle_dev->notify_peers delayed work structure, even if the lowpan_btle_dev passed into add_peer_chan() had previously been initialized. Normally, this would go unnoticed as the delayed work timer is set for 100 msec, however when calling add_peer_chan() faster than 100 msec it clears out a previously queued delay work causing the crash above. To fix this, let add_peer_chan() know when a new lowpan_btle_dev is passed in so that it only performs the delay work initialization when needed. Signed-off-by:
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Johan Hovold authored
Make sure to check the tty-device pointer before looking up the sibling platform device to avoid dereferencing a NULL-pointer when the tty is one end of a Unix98 pty. Fixes: 74cdad37 ("Bluetooth: hci_intel: Add runtime PM support") Fixes: 1ab1f239 ("Bluetooth: hci_intel: Add support for platform driver") Cc: stable <stable@vger.kernel.org> # 4.3 Cc: Loic Poulain <loic.poulain@intel.com> Signed-off-by:
Johan Hovold <johan@kernel.org> Signed-off-by:
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Johan Hovold authored
Make sure to check the tty-device pointer before looking up the sibling platform device to avoid dereferencing a NULL-pointer when the tty is one end of a Unix98 pty. Fixes: 0395ffc1 ("Bluetooth: hci_bcm: Add PM for BCM devices") Cc: stable <stable@vger.kernel.org> # 4.3 Cc: Frederic Danis <frederic.danis@linux.intel.com> Signed-off-by:
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Colin Ian King authored
Ensure we don't end up with a null pointer dereferences by checking for for allocation failures. Allocate by sizeof(*ptr) rather than the type to fix checkpack warnings. Also merge multiple lines into one line for the kmalloc call. Detected by CoverityScan, CID#1422435 ("Dereference null return value") Signed-off-by:Colin Ian King <colin.king@canonical.com> Signed-off-by:
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prasanna karthik authored
Else is not generally useful after a break or return Signed-off-by:
Prasanna Karthik <pkarthik@outlook.com> Signed-off-by:
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Colin Ian King authored
The data from peer->chan->dst is not being copied to peer_addr, the current code just updates the pointer and not the contents of what it points to. Fix this with the intended assignment. Detected by CoverityScan, CID#1422111 ("Parse warning (PW.PARAM_SET_BUT_NOT_USED)") Fixes: fb6f2f606ce8 ("6lowpan: Fix IID format for Bluetooth") Signed-off-by: -
Harry Morris authored
Signed-off-by:
Harry Morris <h.morris@cascoda.com> Acked-by:
Stefan Schmidt <stefan@osg.samsung.com> Signed-off-by:
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Harry Morris authored
Signed-off-by:
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Harry Morris authored
Add driver source and config for softMAC implementation of Cascoda's CA8210 IEEE 802.15.4 transceiver device. The driver mimics a common PHY-only implementation despite the CA8210 being a hardMAC device which exposes a SAP interface to the fully integrated MAC. The chip is a modem-only device with an integrated processor which runs the 802.15.4 MAC. The chip communicates via full-duplex SPI with additional pins for NIRQ and NRESET. The chip can also output its 16MHz clock to a GPIO with a configurable divider. The driver can be configured to implement a debugfs node that provides access to the SAP-based API to drive mechanisms not currently supported by the standard kernel interface. Signed-off-by:
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Andy Shevchenko authored
Until now the driver supports only ACPI enumeration. Nevertheless Intel Edison SoM has Broadcom Wi-Fi + BT chip and neither ACPI nor DT enumeration mechanism. Enable pure platform driver in order to support Intel Edison SoM. Cc: Jarkko Nikula <jarkko.nikula@linux.intel.com> Signed-off-by:
Andy Shevchenko <andriy.shevchenko@linux.intel.com> Signed-off-by:
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Jeffy Chen authored
Currrently we are disabling this wake irq after receiving it. If this happens before we finish suspend and the pm event check is disabled, the system will continue suspending, and this irq would not work again. We may need to abort system suspend to avoid that. Signed-off-by:
Jeffy Chen <jeffy.chen@rock-chips.com> Signed-off-by:
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Jeffy Chen authored
Currrently we are disabling this wake irq after receiving it. If this happens before we finish suspend and the pm event check is disabled, the system will continue suspending, and this irq would not work again. We may need to abort system suspend to avoid that. Signed-off-by:
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Larry Finger authored
The message concerning missing config files for 8723b, 8821a, and 8761a should have been issued with BT_INFO() rather than BT_ERR() as this condition is not fatal. After looking at that code, I have reworked the logic to log such messages only if the device needs such a config file. At the moment, only the 8822b fits that description. Signed-off-by:
Larry Finger <Larry.Finger@lwfinger.net> Acked-by:
陆朱伟 <alex_lu@realsil.com.cn> Signed-off-by:
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Gabriel authored
Signed-off-by: -
Jonas Holmberg authored
Use the initial connection interval recommended in Bluetooth Specification v4.2 (30ms - 50ms). Signed-off-by:
Jonas Holmberg <jonashg@axis.com> Signed-off-by:
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Colin Ian King authored
Variable err is being initialized to zero and then later being set to the error return from the call to hci_req_run_skb; hence we can remove the redundant initialization to zero. Also on two occassions err is not being set from the error return from the call to hci_req_run_skb, so add these missing assignments. Signed-off-by:
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