Currently, kmemdup is applied to the firmware data, and it invokes
kmalloc under the hood. The firmware size and patch_length are big (more
than PAGE_SIZE), and on some low-end systems (like ASUS E202SA) kmalloc
may fail to allocate a contiguous chunk under high memory usage and
fragmentation:
Bluetooth: hci0: RTL: examining hci_ver=06 hci_rev=000a lmp_ver=06 lmp_subver=8821
Bluetooth: hci0: RTL: rom_version status=0 version=1
Bluetooth: hci0: RTL: loading rtl_bt/rtl8821a_fw.bin
kworker/u9:2: page allocation failure: order:4, mode:0x40cc0(GFP_KERNEL|__GFP_COMP), nodemask=(null),cpuset=/,mems_allowed=0
<stack trace follows>
As firmware load happens on each resume, Bluetooth will stop working
after several iterations, when the kernel fails to allocate an order-4
page.
This patch replaces kmemdup with kvmalloc+memcpy. It's not required to
have a contiguous chunk here, because it's not mapped to the device
directly.
Signed-off-by: Maxim Mikityanskiy <maxtram95@gmail.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
This patch registers hdev->shutdown() callback and also sets
HCI_QUIRK_NON_PERSISTENT_SETUP for QCA Rome. It will power-off the BT chip
during hci down and power-on/initialize the chip again during hci up. As
wcn399x already enabled this, this patch also removed the callback register
and QUIRK setting in qca_setup() for wcn399x and uniformly do this in the
probe() routine.
Signed-off-by: Rocky Liao <rjliao@codeaurora.org>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
This patch adds the retry of btsoc initialization when it fails. There are
reports that the btsoc initialization may fail on some platforms but the
repro ratio is very low. The symptoms is the firmware downloading failed
due to the UART write timed out. The failure may be caused by UART,
platform HW or the btsoc itself but it's very difficlut to root cause,
given the repro ratio is very low. Add a retry for the btsoc initialization
can work around most of the failures and make Bluetooth finally works.
Signed-off-by: Rocky Liao <rjliao@codeaurora.org>
Reviewed-by: Matthias Kaehlcke <mka@chromium.org>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Current qca_power_shutdown() only supports wcn399x, this patch adds Rome
power off support to it. For Rome it just needs to pull down the bt_en
GPIO to power off it. This patch also replaces all the power off operation
in qca_close() with the unified qca_power_shutdown() call.
Signed-off-by: Rocky Liao <rjliao@codeaurora.org>
Reviewed-by: Matthias Kaehlcke <mka@chromium.org>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Add support for getting IRQ directly from DT instead of relying on
converting a GPIO to IRQ. This is needed for platforms with GPIO
controllers that that do not support gpiod_to_irq().
Reviewed-by: Kevin Hilman <khilman@baylibre.com>
Signed-off-by: Guillaume La Roque <glaroque@baylibre.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Check for valid packet type before calling hci_recv_frame which is
inline with what other drivers are doing.
Signed-off-by: Luiz Augusto von Dentz <luiz.von.dentz@intel.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
This enables H5 driver to properly handle ISO packets.
Signed-off-by: Luiz Augusto von Dentz <luiz.von.dentz@intel.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
This enables H4 driver to properly handle ISO packets.
Signed-off-by: Luiz Augusto von Dentz <luiz.von.dentz@intel.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
This make virtual controllers to pass ISO packets around.
Signed-off-by: Luiz Augusto von Dentz <luiz.von.dentz@intel.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
This patch adds a unified API qca_power_on() to support both wcn399x and
Rome power on. For wcn399x it calls the qca_wcn3990_init() to init the
regulators, and for Rome it pulls up the bt_en GPIO to power up the btsoc.
It also moves all the power up operation from hdev->open() to
hdev->setup().
Signed-off-by: Rocky Liao <rjliao@codeaurora.org>
Reviewed-by: Matthias Kaehlcke <mka@chromium.org>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
This patches fixes two warnings of checkpatch.pl, both of the type
WARNING: Missing a blank line after declarations
Signed-off-by: Changqi Du <d.changqi@gmail.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Fixes gcc '-Wunused-but-set-variable' warning:
drivers/bluetooth/hci_qca.c: In function 'qca_controller_memdump':
drivers/bluetooth/hci_qca.c:980:6: warning:
variable 'opcode' set but not used [-Wunused-but-set-variable]
It is never used since commit d841502c79 ("Bluetooth: hci_qca: Collect
controller memory dump during SSR"), so remove it.
Reported-by: Hulk Robot <hulkci@huawei.com>
Signed-off-by: YueHaibing <yuehaibing@huawei.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
We will collect the ramdump of BT controller when hardware error event
received before rebooting the HCI layer. Before restarting a subsystem
or a process running on a subsystem, it is often required to request
either a subsystem or a process to perform proper cache dump and
software failure reason into a memory buffer which application
processor can retrieve afterwards. SW developers can often provide
initial investigation by looking into that debugging information.
Signed-off-by: Balakrishna Godavarthi <bgodavar@codeaurora.org>
Signed-off-by: Venkata Lakshmi Narayana Gubba <gubbaven@codeaurora.org>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
The commit 3347a80965 ("Bluetooth: hci_bcm: Fix RTS handling during
startup") is causing at least a regression for AP6256 on Orange Pi 3.
So do the RTS line handing during startup only on the necessary platform.
Fixes: 3347a80965 ("Bluetooth: hci_bcm: Fix RTS handling during startup")
Reported-by: Ondřej Jirman <megous@megous.com>
Signed-off-by: Stefan Wahren <wahrenst@gmx.net>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
This fixes a double definition error when CONFIG_BT_BCM is not set.
Fixes: 5283799023 ("Bluetooth: btbcm: Support pcm configuration")
Signed-off-by: Abhishek Pandit-Subedi <abhishekpandit@chromium.org>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Replace of_device_get_match_data with device_get_match_data to make driver
work across platforms.
Signed-off-by: Rocky Liao <rjliao@codeaurora.org>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Driver supports BCM4329, but there is no device-tree compatible for
that chip. Let's add it in order to allow boards to specify Bluetooth
in theirs device-trees, in particular this is useful for NVIDIA Tegra20
boards.
Signed-off-by: Dmitry Osipenko <digetx@gmail.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
After commit 9e45524a01 ("Bluetooth: btusb: Fix suspend issue for
Realtek devices") both WiFi and Bluetooth stop working after reboot:
[ 34.322617] usb 1-8: reset full-speed USB device number 3 using xhci_hcd
[ 34.450401] usb 1-8: device descriptor read/64, error -71
[ 34.694375] usb 1-8: device descriptor read/64, error -71
...
[ 44.599111] rtw_pci 0000:02:00.0: failed to poll offset=0x5 mask=0x3 value=0x0
[ 44.599113] rtw_pci 0000:02:00.0: mac power on failed
[ 44.599114] rtw_pci 0000:02:00.0: failed to power on mac
[ 44.599114] rtw_pci 0000:02:00.0: leave idle state failed
[ 44.599492] rtw_pci 0000:02:00.0: failed to leave ips state
[ 44.599493] rtw_pci 0000:02:00.0: failed to leave idle state
That commit removed USB_QUIRK_RESET_RESUME, which not only resets the USB
device after resume, it also prevents the device from being runtime
suspended by USB core. My experiment shows if the Realtek btusb device
ever runtime suspends once, the entire wireless module becomes useless
after reboot.
So let's explicitly disable runtime suspend on Realtek btusb device for
now.
Fixes: 9e45524a01 ("Bluetooth: btusb: Fix suspend issue for Realtek devices")
Signed-off-by: Kai-Heng Feng <kai.heng.feng@canonical.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Currently the error return path when the call to btusb_mtk_hci_wmt_sync
fails does not free fw. Fix this by returning via the error_release_fw
label that performs the free'ing.
Addresses-Coverity: ("Resource leak")
Fixes: a1c49c434e ("Bluetooth: btusb: Add protocol support for MediaTek MT7668U USB devices")
Signed-off-by: Colin Ian King <colin.king@canonical.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
USB completion handlers are called in atomic context and must
specifically not allocate memory using GFP_KERNEL.
Fixes: a1c49c434e ("Bluetooth: btusb: Add protocol support for MediaTek MT7668U USB devices")
Cc: stable <stable@vger.kernel.org> # 5.3
Cc: Sean Wang <sean.wang@mediatek.com>
Signed-off-by: Johan Hovold <johan@kernel.org>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
BCM chips may require configuration of PCM to operate correctly and
there is a vendor specific HCI command to do this. Add support in the
hci_bcm driver to parse this from devicetree and configure the chip.
Signed-off-by: Abhishek Pandit-Subedi <abhishekpandit@chromium.org>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
Add BCM vendor specific command to configure PCM parameters. The new
vendor opcode allows us to set the sco routing, the pcm interface rate,
and a few other pcm specific options (frame sync, sync mode, and clock
mode). See broadcom-bluetooth.txt in Documentation for more information
about valid values for those settings.
Here is an example trace where this opcode was used to configure
a BCM4354:
< HCI Command: Vendor (0x3f|0x001c) plen 5
01 02 00 01 01
> HCI Event: Command Complete (0x0e) plen 4
Vendor (0x3f|0x001c) ncmd 1
Status: Success (0x00)
We can read back the values as well with ocf 0x001d to confirm the
values that were set:
$ hcitool cmd 0x3f 0x001d
< HCI Command: ogf 0x3f, ocf 0x001d, plen 0
> HCI Event: 0x0e plen 9
01 1D FC 00 01 02 00 01 01
Signed-off-by: Abhishek Pandit-Subedi <abhishekpandit@chromium.org>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
Without updating the patchram, the BCM4354 does not support a higher
operating speed. The normal bcm_setup follows the correct order
(init_speed, patchram and then oper_speed) but the serdev driver will
set the operating speed before calling the hu->setup function. Thus,
for the BCM4354, don't set the operating speed before patchram.
Signed-off-by: Abhishek Pandit-Subedi <abhishekpandit@chromium.org>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
It should be pull low and pull high on the physical line for the Realtek
Bluetooth reset. gpiod_set_value_cansleep() takes ACTIVE_LOW status for
the logical value settings, so the original commit should be corrected.
Signed-off-by: Max Chou <max.chou@realtek.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Some devices ship with the controller default address, like the
Orange Pi 3 (BCM4345C5).
Allow the bootloader to set a valid address through the device tree.
Signed-off-by: Andre Heider <a.heider@gmail.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Add the device ID for the WiFi/BT/FM combo chip BCM4334 (rev B0).
The chip seems to use 43:34:b0:00:00:00 as default address,
so add it to the list of default addresses and leave it up
to the user to configure a valid one.
Signed-off-by: Stephan Gerhold <stephan@gerhold.net>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
If setup() fails a reference for runtime PM has already
been taken. Proper use of the error handling in btusb_open()is needed.
You cannot just return.
Fixes: ace3198258 ("Bluetooth: btusb: Add setup callback for chip init on USB")
Signed-off-by: Oliver Neukum <oneukum@suse.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
This patch add support for WCN3991 i.e. current values and fw download
support.
Signed-off-by: Balakrishna Godavarthi <bgodavar@codeaurora.org>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Variables which are named with rome are commonly used for all the
BT SoC's. Instead of continuing further, renamed them to generic
name.
Signed-off-by: Balakrishna Godavarthi <bgodavar@codeaurora.org>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
This adds the missing MODULE_DEVICE_TABLE() for SDIO IDs. While certain
platforms using this driver indeed have HW issues causing problems if
the module is loaded too early - this should be handled from user-space
by blacklisting it or delaying the loading.
Signed-off-by: Bartosz Golaszewski <bgolaszewski@baylibre.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Syzbot reported an invalid-free that I introduced fixing a memleak.
bcsp_recv() also frees bcsp->rx_skb but never nullifies its value.
Nullify bcsp->rx_skb every time it is freed.
Signed-off-by: Tomas Bortoli <tomasbortoli@gmail.com>
Reported-by: syzbot+a0d209a4676664613e76@syzkaller.appspotmail.com
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Add PM suspend/resume callbacks for hci_qca driver.
BT host will make sure both Rx and Tx go into sleep state in
qca_suspend. Without this, Tx may still remain in awake state, which
prevents BTSOC from entering deep sleep. For example, BlueZ will send
Set Event Mask to device when suspending and this will wake the device
Rx up. However, the Tx idle timeout on the host side is 2000 ms. If the
host is suspended before its Tx idle times out, it won't send
HCI_IBS_SLEEP_IND to the device and the device Rx will remain awake.
We implement this by canceling relevant work in workqueue, sending
HCI_IBS_SLEEP_IND to the device and then waiting HCI_IBS_SLEEP_IND sent
by the device.
In order to prevent the device from being awaken again after qca_suspend
is called, we introduce QCA_SUSPEND flag. QCA_SUSPEND is set in the
beginning of qca_suspend to indicate system is suspending and that we'd
like to ignore any further wake events.
With QCA_SUSPEND and spinlock, we can avoid race condition, e.g. if
qca_enqueue acquires qca->hci_ibs_lock before qca_suspend calls
cancel_work_sync and then qca_enqueue adds a new qca->ws_awake_device
work after the previous one is cancelled.
If BTSOC wants to wake the whole system up after qca_suspend is called,
it will keep sending HCI_IBS_WAKE_IND and uart driver will take care of
waking the system. For example, uart driver will reconfigure its Rx pin
to a normal GPIO pin and enable irq wake on that pin when suspending.
Once host detects Rx falling, the system will begin resuming. Then, the
BT host clears QCA_SUSPEND flag in qca_resume and begins dealing with
normal HCI packets. By doing so, only a few HCI_IBS_WAKE_IND packets are
lost and there is no data packet loss.
Signed-off-by: Claire Chang <tientzu@chromium.org>
Reviewed-by: Balakrishna Godavarthi <bgodavar@codeaurora.org>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
The BCM43540 chip is a 802.11 a/b/g/n/ac + Bluetooth 4.1 combo module.
This patch adds a compatible string match to the serdev driver for the
Bluetooth part of the chip.
Signed-off-by: Abhishek Pandit-Subedi <abhishekpandit@chromium.org>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Remove unneeded semicolon.
This is detected by coccinelle.
Signed-off-by: YueHaibing <yuehaibing@huawei.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
The RPi 4 uses the hardware handshake lines for CYW43455, but the chip
doesn't react to HCI requests during DT probe. The reason is the inproper
handling of the RTS line during startup. According to the startup
signaling sequence in the CYW43455 datasheet, the hosts RTS line must
be driven after BT_REG_ON and BT_HOST_WAKE.
Signed-off-by: Stefan Wahren <wahrenst@gmx.net>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
This reverts commit cde9dde6e1.
The frame reassembly errors were root caused to a transient gpio issue.
The missing response was root caused to an issue with properly managing
RFR in the uart driver. Addressing those root causes occurs outside of
hci_qca and eliminates the need for the 50ms delay, so remove it.
Signed-off-by: Jeffrey Hugo <jeffrey.l.hugo@gmail.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
When building with Clang and CONFIG_BT_INTEL unset, the following error
occurs:
In file included from drivers/bluetooth/hci_ldisc.c:34:
drivers/bluetooth/btintel.h:188:2: error: void function
'btintel_reset_to_bootloader' should not return a value [-Wreturn-type]
return -EOPNOTSUPP;
^ ~~~~~~~~~~~
1 error generated.
Remove the unneeded return statement to fix this.
Fixes: b9a2562f49 ("Bluetooth: btusb: Trigger Intel FW download error recovery")
Link: https://github.com/ClangBuiltLinux/linux/issues/743
Reported-by: <ci_notify@linaro.org>
Reported-by: Stephen Rothwell <sfr@canb.auug.org.au>
Signed-off-by: Nathan Chancellor <natechancellor@gmail.com>
Reviewed-by: Nick Desaulniers <ndesaulniers@google.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Split and rename qca_power_setup() in order to simplify each code path
and to clarify that it is unrelated to qca_power_off() and
qca_power_setup().
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
With the regulator_set_load() and regulator_set_voltage() out of the
enable/disable code paths the code can now use the standard
regulator bulk enable/disable API.
By cloning num_vregs into struct qca_power there's no need to lug around
a reference to the struct qca_vreg_data, which further simplifies
qca_power_setup().
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Devices with specific voltage requirements should not request voltage
from the driver, but instead rely on the system configuration to define
appropriate voltages for each rail.
This ensures that PMIC and board variations are accounted for, something
that the 0.1V range in the hci_qca driver currently tries to address.
But on the Lenovo Yoga C630 (with wcn3990) vddch0 is 3.1V, which means
the driver will fail to set the voltage.
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Since the introduction of '5451781dadf8 ("regulator: core: Only count
load for enabled consumers")' in v5.0, the requested load of a regulator
consumer is only accounted for when said consumer is voted enabled.
So there's no need to vote for load ever time the regulator is
enabled or disabled.
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
On the msm8998 mtp, the response to the baudrate change command is never
received. On the Lenovo Miix 630, the response to the baudrate change
command is corrupted - "Frame reassembly failed (-84)".
Adding a 50ms delay before re-enabling flow to receive the baudrate change
command response from the wcn3990 addesses both issues, and allows
bluetooth to become functional.
Signed-off-by: Jeffrey Hugo <jeffrey.l.hugo@gmail.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Sometimes during FW data download stage, in case of an error is
encountered the controller device could not be recovered. To recover
from such failures send Intel hard Reset to re-trigger FW download in
following error scenarios:
1. Intel Read version command error
2. Firmware download timeout
3. Failure in Intel Soft Reset for switching to operational FW
4. Boot timeout for switching to operaional FW
Signed-off-by: Raghuram Hegde <raghuram.hegde@intel.com>
Signed-off-by: Chethan T N <chethan.tumkur.narayan@intel.com>
Signed-off-by: Amit K Bag <amit.k.bag@intel.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
All users of this driver have been converted to the serdev based
hci_ll driver. The unused driver can be safely dropped now.
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
As nice as it would be to update firmware faster, that patch broke
at least two different boards, an OMAP4+WL1285 based Motorola Droid
4, as reported by Sebasian Reichel and the Logic PD i.MX6Q +
WL1837MOD.
This reverts commit a2e02f38ef.
Signed-off-by: Adam Ford <aford173@gmail.com>
Acked-by: Sebastian Reichel <sebastian.reichel@collabora.com>
Cc: stable@vger.kernel.org
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
For the different hardware support options, it is better to use
IS_ENABLED check. Let the compiler do the needed optimizations.
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
The btusb_rtl_cmd_timeout() function is used inside of an
ifdef, leading to a warning when this part is hidden
from the compiler:
drivers/bluetooth/btusb.c:530:13: error: unused function 'btusb_rtl_cmd_timeout' [-Werror,-Wunused-function]
Use an IS_ENABLED() check instead so the compiler can see
the code and then discard it silently.
Fixes: d7ef0d1e39 ("Bluetooth: btusb: Use cmd_timeout to reset Realtek device")
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
