Commit Graph

30 Commits

Author SHA1 Message Date
Kiran K ac40679139 Revert "Bluetooth: btintel: Fix endianness issue for TLV version information"
This reverts commit a63f23c9d139377833a139b179793fea79ee198f.

get_unaligned_{le16|le32|le64}(p) is meant to replace code of the form
le16_to_cpu(get_unaligned((__le16 *)p)). There is no need to explicitly
do leXX_to_cpu() if get_unaligned_leXX() is used.

https://lwn.net/Articles/277779/

Reported-by: kernel test robot <lkp@intel.com>
Signed-off-by: Kiran K <kiran.k@intel.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
2020-12-18 22:42:42 +01:00
Kiran K 66500bbc7d Bluetooth: btintel: Fix endianness issue for TLV version information
do __le32_to_cpu to tlv data fields to make sure driver runs
correctly when running on big endian system.

Signed-off-by: Kiran K <kiran.k@intel.com>
Reviewed-by: Chethan T N <chethan.tumkur.narayan@intel.com>
Reviewed-by: Srivatsa Ravishankar <ravishankar.srivatsa@intel.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
2020-12-07 17:01:03 +02:00
Kiran K 81ebea5352 Bluetooth: btintel: Functions to send firmware header / payload
New generation controllers supports ECDSA secure boot engine.
This patch adds,

1) function to send ECDSA header

2) function to download complete firmware for new generation Intel
   controllers

Signed-off-by: Kiran K <kiran.k@intel.com>
Signed-off-by: Amit K Bag <amit.k.bag@intel.com>
Signed-off-by: Raghuram Hegde <raghuram.hegde@intel.com>
Reviewed-by: Chethan T N <chethan.tumkur.narayan@intel.com>
Reviewed-by: Srivatsa Ravishankar <ravishankar.srivatsa@intel.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
2020-09-14 20:30:36 +02:00
Kiran K 57375beef7 Bluetooth: btintel: Add infrastructure to read controller information
New generation Intel controllers returns version information in TLV
format. This patch adds,

1) Enums, structures for TLV

2) function to read controller information, parse TLV data and populate
   intel_version_tlv structure

3) function to print version information

Signed-off-by: Kiran K <kiran.k@intel.com>
Signed-off-by: Amit K Bag <amit.k.bag@intel.com>
Signed-off-by: Raghuram Hegde <raghuram.hegde@intel.com>
Reviewed-by: Chethan T N <chethan.tumkur.narayan@intel.com>
Reviewed-by: Srivatsa Ravishankar <ravishankar.srivatsa@intel.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
2020-09-14 20:30:36 +02:00
Kiran K e91172151a Bluetooth: btintel: Refactor firmware download function
Split firmware download code into two functions - one to download
header and other to download payload. This patch enhances readability
and reusabiltiy of code

Signed-off-by: Kiran K <kiran.k@intel.com>
Reviewed-by: Chethan T N <chethan.tumkur.narayan@intel.com>
Reviewed-by: Sathish Narasimman <Sathish.Narasimman@intel.com>
Reviewed-by: Srivatsa Ravishankar <ravishankar.srivatsa@intel.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
2020-09-13 09:58:22 +02:00
Chethan T N c453b10c2b Bluetooth: btusb: Configure Intel debug feature based on available support
This patch shall enable the Intel telemetry exception format
based on the supported features

Signed-off-by: Chethan T N <chethan.tumkur.narayan@intel.com>
Signed-off-by: Ps AyappadasX <AyappadasX.Ps@intel.com>
Signed-off-by: Kiran K <kiran.k@intel.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
2020-06-10 10:07:36 +02:00
Chethan T N d74abe2138 Bluetooth: btusb: Add support to read Intel debug feature
The command shall read the Intel controller supported
debug feature. Based on the supported features additional debug
configuration shall be enabled.

Signed-off-by: Chethan T N <chethan.tumkur.narayan@intel.com>
Signed-off-by: Ps AyappadasX <AyappadasX.Ps@intel.com>
Signed-off-by: Kiran K <kiran.k@intel.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
2020-06-10 06:51:49 +02:00
Gustavo A. R. Silva 683cc86d81 Bluetooth: btintel: Replace zero-length array with flexible-array member
The current codebase makes use of the zero-length array language
extension to the C90 standard, but the preferred mechanism to declare
variable-length types such as these ones is a flexible array member[1][2],
introduced in C99:

struct foo {
        int stuff;
        struct boo array[];
};

By making use of the mechanism above, we will get a compiler warning
in case the flexible array does not occur last in the structure, which
will help us prevent some kind of undefined behavior bugs from being
inadvertenly introduced[3] to the codebase from now on.

Also, notice that, dynamic memory allocations won't be affected by
this change:

"Flexible array members have incomplete type, and so the sizeof operator
may not be applied. As a quirk of the original implementation of
zero-length arrays, sizeof evaluates to zero."[1]

This issue was found with the help of Coccinelle.

[1] https://gcc.gnu.org/onlinedocs/gcc/Zero-Length.html
[2] https://github.com/KSPP/linux/issues/21
[3] commit 7649773293 ("cxgb3/l2t: Fix undefined behaviour")

Signed-off-by: Gustavo A. R. Silva <gustavo@embeddedor.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
2020-02-13 08:28:38 +01:00
Amit K Bag b9a2562f49 Bluetooth: btusb: Trigger Intel FW download error recovery
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>
2019-10-17 09:23:47 +02:00
Thomas Gleixner 1a59d1b8e0 treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 156
Based on 1 normalized pattern(s):

  this program is free software you can redistribute it and or modify
  it under the terms of the gnu general public license as published by
  the free software foundation either version 2 of the license or at
  your option any later version this program is distributed in the
  hope that it will be useful but without any warranty without even
  the implied warranty of merchantability or fitness for a particular
  purpose see the gnu general public license for more details you
  should have received a copy of the gnu general public license along
  with this program if not write to the free software foundation inc
  59 temple place suite 330 boston ma 02111 1307 usa

extracted by the scancode license scanner the SPDX license identifier

  GPL-2.0-or-later

has been chosen to replace the boilerplate/reference in 1334 file(s).

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Reviewed-by: Allison Randal <allison@lohutok.net>
Reviewed-by: Richard Fontana <rfontana@redhat.com>
Cc: linux-spdx@vger.kernel.org
Link: https://lkml.kernel.org/r/20190527070033.113240726@linutronix.de
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-05-30 11:26:35 -07:00
Tedd Ho-Jeong An fbbe83c52b Bluetooth: btintel: Create common function for firmware download
The firmware download flow for RAM SKU is same for both USB and UART
and this patch creates a common function for both driver.

Signed-off-by: Tedd Ho-Jeong An <tedd.an@linux.intel.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
2018-01-25 09:28:40 +01:00
Tedd Ho-Jeong An faf174d297 Bluetooth: btintel: Create common Intel Read Boot Params function
The Intel_Read_Boot_Params command is used to read boot parameters
from the bootloader and this is Intel generic command used in USB
and UART drivers.

Signed-off-by: Tedd Ho-Jeong An <tedd.an@linux.intel.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
2018-01-24 19:31:49 +01:00
Tedd Ho-Jeong An e5889af62f Bluetooth: btintel: Create common function for Intel Reset
The Intel_Reset command is used to reset the device after downloading
the firmware and this is Intel generic command used in both USB and
UART.

Signed-off-by: Tedd Ho-Jeong An <tedd.an@linux.intel.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
2018-01-24 19:31:49 +01:00
Colin Ian King 948c7ca03c Bluetooth: btintel: make array 'param' static, shrinks object size
Don't populate the const read-only array 'param' on the stack but instead
make it static. Makes the object code smaller by nearly 20 bytes:

Before:
   text	   data	    bss	    dec	    hex	filename
  11605	   2629	     64	  14298	   37da	linux/drivers/bluetooth/btintel.o

After:
   text	   data	    bss	    dec	    hex	filename
  11531	   2685	     64	  14280	   37c8	linux/drivers/bluetooth/btintel.o

(gcc version 7.2.0 x86_64)

Signed-off-by: Colin Ian King <colin.king@canonical.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
2018-01-08 21:44:22 +01:00
Marcel Holtmann 2064ee332e Bluetooth: Use bt_dev_err and bt_dev_info when possible
In case of using BT_ERR and BT_INFO, convert to bt_dev_err and
bt_dev_info when possible. This allows for controller specific
reporting.

Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
2017-10-30 12:25:45 +02:00
Jürg Billeter d1b7abae66 Bluetooth: btintel: Add MODULE_FIRMWARE entries for iBT 3.5 controllers
The iBT 3.5 controllers (Intel 8265, Windstorm Peak) need
intel/ibt-12-16.sfi and intel/ibt-12-16.ddc firmware files from
linux-firmware repository.

Signed-off-by: Jürg Billeter <j@bitron.ch>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
2017-05-23 19:54:55 +02:00
Loic Poulain 6c483de1b3 Bluetooth: btintel: Create common Intel Version Read function
The Intel Version Read command is used to retrieve information
about hardware and firmware version/revision of Intel Bluetooth
controllers. This is an Intel generic command used in USB and
UART drivers.

Signed-off-by: Loic Poulain <loic.poulain@intel.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
2015-12-10 00:51:51 +01:00
Loic Poulain 28dc4b92e2 Bluetooth: btintel: Add manufacturing enter/exit helpers
Older Intel controllers need to enter manufacturing mode to perform
some vendor specific operations (patching, configuration...).
Add enter/exit manufaturing methods and refactor existing
manufacturing code.
Exit can be configured to perform a reset. Reset can be performed
either with patches activated or deactivated.

Signed-off-by: Loic Poulain <loic.poulain@intel.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
2015-12-10 00:51:50 +01:00
Marcel Holtmann 213445b2b4 Bluetooth: btintel: Enable extra Intel vendor events
The Intel Bluetooth controllers can emit extra vendor specific events in
error conditions or for debugging purposes. To make the life easier for
engineers, enable them by default. When the vendor_diag options has been
enabled, then additional debug events are also enabled.

Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
2015-10-21 07:34:11 +03:00
Marcel Holtmann 3e24767b78 Bluetooth: btintel: Add diagnostic support for older controllers
For the older controllers like Wilkens Peak and Stone Peak, enabling the
traces requires to switch into manufacturer mode first. This patch does
exactly that, but only for these older controllers.

Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
2015-10-21 00:49:22 +02:00
Marcel Holtmann d8270fbb3f Bluetooth: btintel: Set quirk for non-persistent diagnostic settings
For Intel controllers the diagnostics settings are not persistent over
HCI Reset. So set the quirk to programm them again on every power up.

Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
2015-10-21 00:49:22 +02:00
Marcel Holtmann 6d2e50d240 Bluetooth: btintel: Add support for enabling tracing functionality
For Intel controllers with firmware that allows tracing of baseband
functionality this allows enabling it via set_diag driver callback.

Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
2015-10-21 00:49:21 +02:00
Loic Poulain d06f107bcd Bluetooth: btintel: Add iBT register access over HCI support
Add regmap ibt to support Intel Bluetooth silicon register access
over HCI. Intel BT/FM combo chip allows to read/write some registers
(e.g. FM registers) via its HCI interface.

Read/Write operations are performed via a HCI transaction composed of
a HCI command (host->controller) followed by a HCI command complete
event (controller->host). Read/Write Command opcodes can be specified
to the regmap init function.
We define data formats which are intel/vendor specific.

Register Read/Write HCI command payload (Host):
Field: | REG ADDR | MODE | DATA_LEN | DATA... |
size:  |   32b    |  8b  |    8b    |  8b*    |

Register Read HCI command complete event payload (Controller):
Field: | CMD STATUS | REG ADDR | DATA... |
size:  |     8b     |   32b    |  8b*    |

Register Write HCI command complete event payload (Controller):
Field: | CMD_STATUS |
size:  |     8b     |

Since this payload is HCI encapsulated, Little Endian byte order is
used.

Write/Read Example:

If we write 0x0000002a at address 0x00008c04, with opcode_write 0xfc5d,
The resulting transaction is (btmon trace):

< HCI Command (0x3f|0x005d) plen 10 [hci0]
        04 8c 00 00 02 04 2a 00 00 00
> HCI Event (0x0e) plen 4
      Unknown (0x3f|0x005d) ncmd 1
        00

Then, if we read the same register with opcode_read 0xfc5e:

< HCI Command (0x3f|0x005e) plen 6 [hci0]
        04 8c 00 00 02 04
> HCI Event (0x0e) plen 12 [hci0]
      Unknown (0x3f|0x005e) ncmd 1
        00 04 8c 00 00 2a 00 00 00

Signed-off-by: Loic Poulain <loic.poulain@intel.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
2015-10-03 19:03:15 +02:00
Loic Poulain 145f2368c5 Bluetooth: btintel: Add Device Configuration support
btintel_load_ddc_config retrieves the ddc file and sends its content
via DDC commands (opcode 0xfc8b).

The ddc file should contain one or more DDC structures.
A DDC structure is composed of the folowing fields:
field: | DDC LEN |    DDC ID    |   DDC VALUE   |
size:  | 1 byte  |    2 bytes   |  DDC LEN - 2  |

Signed-off-by: Loic Poulain <loic.poulain@intel.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
2015-09-17 13:20:05 +02:00
Marcel Holtmann 0ed97e8294 Bluetooth: btintel: Add MODULE_FIRMWARE entries for iBT 3.0 controllers
The iBT 3.0 controllers need intel/ibt-11-5.sfi and intel/ibt-11-5.ddc
firmware files from linux-firmware repository.

Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
2015-08-28 21:00:37 +02:00
Marcel Holtmann 7feb99e130 Bluetooth: btintel: Create common function for Intel version info
The Intel version information is shared between USB and UART drivers
and with that move it into a generic function of the Intel module.

Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
2015-07-23 17:10:50 +02:00
Marcel Holtmann 09df123d2d Bluetooth: btintel: Create common Intel Secure Send function
The Intel Secure Send command is used the same in USB and UART drivers
and with that move a generic version into the Intel module.

Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
2015-07-23 17:10:50 +02:00
Marcel Holtmann 973bb97e5a Bluetooth: btintel: Add generic function for handling hardware errors
The handling of hardware error has support for providing a vendor
specific callback to deal with the error. Move the Intel specific
function out of the USB driver into the generic module so that it
can also be utilized by the UART driver.

Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
2015-07-23 17:10:49 +02:00
Frederic Danis b1f5cf0cae Bluetooth: btintel: Fix calls to __hci_cmd_sync()
Remove test of command reply status as it is already performed by
__hci_cmd_sync().

__hci_cmd_sync_ev() function already returns an error if it got a
non-zero status either through a Command Complete or a Command
Status event.

For both of these events the status is collected up in the event
handlers called by hci_event_packet() and then passed as the second
parameter to req_complete_skb(). The req_complete_skb() callback in
turn is hci_req_sync_complete() for __hci_cmd_sync_ev() which stores
the status in hdev->req_result. The hdev->req_result is then further
converted through bt_to_errno() back in __hci_cmd_sync_ev().

Signed-off-by: Frederic Danis <frederic.danis@linux.intel.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
2015-05-15 16:04:49 +02:00
Marcel Holtmann 48f0ed1bb6 Bluetooth: btintel: Introduce generic Intel Bluetooth support
The majority of Intel Bluetooth vendor commands are shared between USB
and UART transports. This creates a separate module that eventually
will hold all Intel specific commands, but for now just start with the
commands to change the Bluetooth public address and check for the
default address.

Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
2015-04-07 18:48:21 +02:00