Commit Graph

76 Commits

Author SHA1 Message Date
Marcel Holtmann 3e0ac12a1a Bluetooth: hci_uart: Use generic functionality from Broadcom module
The new Broadcom Bluetooth support module provides generic functionality
for changing and checking the Bluetooth device address. Use these new
features instead of keeping a duplicate in the driver.

Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
2015-04-07 18:47:11 +02:00
Marcel Holtmann 788a675675 Bluetooth: hci_uart: Update version number driver
This version number is more cosmetic and for debugging purposes, but
since there has been a few changes lately, increase it now.

Two left-over and not used version constants that were never exposed
anywhere are removed since they have no actual value.

Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
2015-04-07 18:47:10 +02:00
Marcel Holtmann 01009eec70 Bluetooth: hci_uart: Remove the manual protocol init message
The init function for each HCI UART protocol prints the same on success
and failure. This information is so generic, remove it and let the main
HCI UART handling print it instead.

Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
2015-04-07 18:47:10 +02:00
Marcel Holtmann 4ee7ef1989 Bluetooth: hci_uart: Make struct hci_uart_proto always const
The usage of struct hci_uart_proto should always be const. Change the
function headers and individual protocol drivers.

Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
2015-04-07 18:47:10 +02:00
Marcel Holtmann 9d1c40ebb6 Bluetooth: hci_uart: Use const data pointer for received data
The TTY layer provides its data pointers as const, but the HCI UART
callbacks expect them as general data pointers. This is of course
wrong and instead of casting them, just fix the individual drivers
to actually take a const data pointer.

Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
2015-04-07 18:47:09 +02:00
Marcel Holtmann facf5225e8 Bluetooth: hci_uart: Fix indentation issues for multi-line functions
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
2015-04-07 18:47:09 +02:00
Marcel Holtmann dfe19d2820 Bluetooth: hci_uart: Remove unneeded cast of tty->disc_data
Casting the tty->disc_data to (void *) is not needed at all. So just
remove this cast and assign the object without a cast.

Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
2015-04-07 18:47:09 +02:00
Marcel Holtmann e9a2dd261a Bluetooth: hci_uart: Add support Broadcom address configuration
When using vendor detection, this adds support for the Broadcom
specific address configuration command.

Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
2015-04-07 18:47:08 +02:00
Marcel Holtmann 16e3887f9c Bluetooth: hci_uart: Add support Intel address configuration
When using vendor detection, this adds support for the Intel specific
address configuration command.

Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
2015-04-07 18:47:08 +02:00
Marcel Holtmann fb2ce8d11f Bluetooth: hci_uart: Add support for vendor detection flag
This adds a new HCI_UART_VND_DETECT flag to allow automatic vendor
detection. This allows to enable known vendor commands (for example
for setting the public device address) when using a standard H:4
UART protocol or when running in virtual machines.

When this new flag is configured and no vendor specific setup
routine is provided, then the local version information are read
and the provided manufacturer information can be evaluated to
configure extra vendor callbacks.

Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
2015-04-07 18:47:08 +02:00
Marcel Holtmann 41533fe5b4 Bluetooth: Remove unneeded extra ( ) in valid flags check
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
2015-04-02 08:41:21 +03:00
Loic Poulain eb17380972 Bluetooth: hci_uart: Add setup callback
Some Bluetooth controllers require initialization before being
used (vendor config, firmware download). Add possibility for a
HCI UART proto to implement this early init via the setup callback.

Signed-off-by: Loic Poulain <loic.poulain@intel.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
2015-03-25 17:31:58 +01:00
Marcel Holtmann c7e0c14115 Bluetooth: Fix HCIUARTGETDEVICE ioctl when UART is not registered
The protocol for the UART might be configured, but that does not
mean the HCI device is registered. Return an error in that case
and only return the index number when HCI_UART_REGISTERED is set.

Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
2014-07-12 18:37:34 +03:00
Marcel Holtmann 6afd04ad6b Bluetooth: Add support for external configuration with UART driver
The quirk for enabling external configuration with UART needs to be
provided via the HCI UART flags. Add a new flag for it and declare
it as valid.

Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
2014-07-11 13:59:50 +03:00
Marcel Holtmann bb72bd68fd Bluetooth: Check for valid HCI UART driver flags
Providing unknown or invalid flags to the HCI UART driver should
result in an error. So check which flags are valid and otherwise
return an error.

Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
2014-07-11 13:59:47 +03:00
Felipe Balbi da64c27d3c bluetooth: hci_ldisc: fix deadlock condition
LDISCs shouldn't call tty->ops->write() from within
->write_wakeup().

->write_wakeup() is called with port lock taken and
IRQs disabled, tty->ops->write() will try to acquire
the same port lock and we will deadlock.

Acked-by: Marcel Holtmann <marcel@holtmann.org>
Reviewed-by: Peter Hurley <peter@hurleysoftware.com>
Reported-by: Huang Shijie <b32955@freescale.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
Tested-by: Andreas Bießmann <andreas@biessmann.de>
Cc: stable <stable@vger.kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2014-04-24 16:16:33 -07:00
Valentin Ilie a08b15e66e Bluetooth: Remove assignments in if-statements
Remove assignment in if-statements to be consistent with the coding
style.

Signed-off-by: Valentin Ilie <valentin.ilie@gmail.com>
Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
2014-03-05 20:52:17 +02:00
Marcel Holtmann 52bc423a7e Bluetooth: Remove pointless parameter check in hci_uart_send_frame()
The hdev parameter of hci_uart_send_frame() is always valid. If it
were not valid, then it would have crashed earlier in the call chain.

Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
2013-10-11 17:00:24 +02:00
Marcel Holtmann 7bd8f09f69 Bluetooth: Add hdev parameter to hdev->send driver callback
Instead of masking hdev inside the skb->dev parameter, hand it
directly to the driver as a parameter to hdev->send. This makes
the driver interface more clear and simpler.

This patch fixes all drivers to accept and handle the new parameter
of hdev->send callback. Special care has been taken for bpa10x
and btusb drivers that require having skb->dev set to hdev for
the URB transmit complete handlers.

Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
2013-10-11 15:28:03 +02:00
Chan-yeol Park 1687dfc3dc Bluetooth: Remove trivial white space
This patch removes redundant whitespace from the HCI ldisc driver.

Signed-off-by: Chan-yeol Park <chanyeol.park@samsung.com>
Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
2013-04-04 12:36:02 +03:00
Chan-yeol Park 788f0923d3 Bluetooth: Fix possible NULL dereference in hci_uart_tty_receive
This patch adds a NULL check for the HCI UART ldisc driver because some
of HCI UART drivers allow hci_uart_tty_receive function to be called
even though the HCI device hasn't been registered yet.

Signed-off-by: Chan-yeol Park <chanyeol.park@samsung.com>
Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
2013-04-04 12:36:00 +03:00
Jiri Slaby f327b340e3 TTY: hci_ldisc, remove invalid check in open
hci_ldisc's open checks if tty_struct->disc_data is set. And if so it
returns with an error. But nothing ensures disc_data to be NULL. And
since ld->ops->open shall be called only once, we do not need the
check at all. So remove it.

Note that this is not an issue now, but n_tty will start using the
disc_data pointer and this invalid 'if' would trigger then rendering
TTYs over BT unusable.

Signed-off-by: Jiri Slaby <jslaby@suse.cz>
Acked-by: Marcel Holtmann <marcel@holtmann.org>
Cc: Gustavo Padovan <gustavo@padovan.org>
Cc: Johan Hedberg <johan.hedberg@gmail.com>
Cc: linux-bluetooth@vger.kernel.org
Acked-by: Alan Cox <alan@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2012-10-22 16:50:53 -07:00
Peter Senna Tschudin a20890d079 Bluetooth: hci_ldisc.c: removes unnecessary semicolon
removes unnecessary semicolon

Found by Coccinelle: http://coccinelle.lip6.fr/

Signed-off-by: Peter Senna Tschudin <peter.senna@gmail.com>
Acked-by: Marcel Holtmann <marcel@holtmann.org>
Signed-off-by: Gustavo Padovan <gustavo.padovan@collabora.co.uk>
2012-09-18 22:26:22 -03:00
Johan Hedberg 9f2aee848f Bluetooth: Add delayed init sequence support for UART controllers
This patch makes it possible to have UART drivers perform an internal
initialization before calling hci_register_dev. This allows moving a lot
of init code from user space (hciattach) to the kernel side, thereby
creating a more controlled/robust initialization process.

Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
Signed-off-by: Gustavo Padovan <gustavo.padovan@collabora.co.uk>
2012-07-17 14:48:29 -03:00
Johan Hedberg dac670b976 Bluetooth: Simplify hci_uart_tty_close logic
This patch cleans up and reduces indentation in the hci_uart_tty_close
function.

Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
Signed-off-by: Gustavo Padovan <gustavo.padovan@collabora.co.uk>
2012-07-17 14:48:27 -03:00