linux.git/drivers/staging/wfx/debug.c, branch v5.5 Linux kernel source tree staging: align to fix warnings of line over 80 characters 2019-11-14T03:10:48+00:00 Jules Irenge jbi.octave@gmail.com 2019-11-13T11:00:52+00:00 8c7128c4cf4e0e6eb67bd65b4dbe619c3d297bb6 Align to fix multiple warnings of line over 80 characters. Issue detected by checkpatch tool. Signed-off-by: Jules Irenge <jbi.octave@gmail.com> Link: https://lore.kernel.org/r/20191113110052.14855-1-jbi.octave@gmail.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> 
Align to fix multiple warnings of line over 80 characters.
Issue detected by checkpatch tool.

Signed-off-by: Jules Irenge <jbi.octave@gmail.com>
Link: https://lore.kernel.org/r/20191113110052.14855-1-jbi.octave@gmail.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
staging: wfx: fix warnings of alignment should match open parenthesis 2019-10-26T18:43:47+00:00 Jules Irenge jbi.octave@gmail.com 2019-10-19T14:07:19+00:00 4b1aa4ba48788bc20412b10744ba7ab36d125974 : Fix warnings of alignment should match open parenthesis. Issue detected by checkpatch tool. Signed-off-by: Jules Irenge <jbi.octave@gmail.com> Link: https://lore.kernel.org/r/20191019140719.2542-6-jbi.octave@gmail.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> 
: Fix warnings of alignment should match open parenthesis.
Issue detected by checkpatch tool.

Signed-off-by: Jules Irenge <jbi.octave@gmail.com>
Link: https://lore.kernel.org/r/20191019140719.2542-6-jbi.octave@gmail.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
staging: wfx: fix swapped arguments in memset call 2019-10-10T08:46:26+00:00 Colin Ian King colin.king@canonical.com 2019-10-09T09:46:02+00:00 0bb0dff0cc16ac58e3f0123bda3035547da30d55 The memset appears to have the 2nd and 3rd arguments in the wrong order, fix this by swapping these around into the correct order. Addresses-Coverity: ("Memset fill truncated") Fixes: 4f8b7fabb15d ("staging: wfx: allow to send commands to chip") Signed-off-by: Colin Ian King <colin.king@canonical.com> Reviewed-by: Jérôme Pouiller <jerome.pouiller@silabs.com> Link: https://lore.kernel.org/r/20191009094602.19663-1-colin.king@canonical.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> 
The memset appears to have the 2nd and 3rd arguments in the wrong
order, fix this by swapping these around into the correct order.

Addresses-Coverity: ("Memset fill truncated")
Fixes: 4f8b7fabb15d ("staging: wfx: allow to send commands to chip")
Signed-off-by: Colin Ian King <colin.king@canonical.com>
Reviewed-by: Jérôme Pouiller <jerome.pouiller@silabs.com>
Link: https://lore.kernel.org/r/20191009094602.19663-1-colin.king@canonical.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
staging: wfx: fix copy_{to,from}_user() usage 2019-10-08T12:44:56+00:00 Jérôme Pouiller jerome.pouiller@silabs.com 2019-10-08T09:43:00+00:00 51f589c82f6d4b3c9e417b39141836fb3db86093 On error, copy_to_user() returns number of bytes remaining. Driver should return -EFAULT. Fixes: 4f8b7fabb15d ("staging: wfx: allow to send commands to chip") Reported-by: kbuild test robot <lkp@intel.com> Reported-by: Dan Carpenter <dan.carpenter@oracle.com> Signed-off-by: Jérôme Pouiller <jerome.pouiller@silabs.com> Link: https://lore.kernel.org/r/20191008094232.10014-6-Jerome.Pouiller@silabs.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> 
On error, copy_to_user() returns number of bytes remaining. Driver
should return -EFAULT.

Fixes: 4f8b7fabb15d ("staging: wfx: allow to send commands to chip")
Reported-by: kbuild test robot <lkp@intel.com>
Reported-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Jérôme Pouiller <jerome.pouiller@silabs.com>
Link: https://lore.kernel.org/r/20191008094232.10014-6-Jerome.Pouiller@silabs.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
staging: wfx: implement the rest of mac80211 API 2019-10-04T08:48:54+00:00 Jérôme Pouiller jerome.pouiller@silabs.com 2019-09-19T14:25:48+00:00 40115bbc40e2fd2de0e01ef2a28e0d09a1b5d0d1 Finish to fill struct ieee80211_ops with necessary callbacks. Driver is now ready to be registered to mac80211. Signed-off-by: Jérôme Pouiller <jerome.pouiller@silabs.com> Link: https://lore.kernel.org/r/20190919142527.31797-21-Jerome.Pouiller@silabs.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> 
Finish to fill struct ieee80211_ops with necessary callbacks. Driver is
now ready to be registered to mac80211.

Signed-off-by: Jérôme Pouiller <jerome.pouiller@silabs.com>
Link: https://lore.kernel.org/r/20190919142527.31797-21-Jerome.Pouiller@silabs.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
staging: wfx: add debug files and trace debug events 2019-10-04T08:47:35+00:00 Jérôme Pouiller jerome.pouiller@silabs.com 2019-09-19T14:25:44+00:00 f4a71ba8753d94cc5c1e73746352274a598a25ee Add traces when debug events happen and allow to ask internal information to chip. These features work independently from mac80211. Signed-off-by: Jérôme Pouiller <jerome.pouiller@silabs.com> Link: https://lore.kernel.org/r/20190919142527.31797-16-Jerome.Pouiller@silabs.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> 
Add traces when debug events happen and allow to ask internal
information to chip.

These features work independently from mac80211.

Signed-off-by: Jérôme Pouiller <jerome.pouiller@silabs.com>
Link: https://lore.kernel.org/r/20190919142527.31797-16-Jerome.Pouiller@silabs.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
staging: wfx: setup initial chip configuration 2019-10-04T08:47:35+00:00 Jérôme Pouiller jerome.pouiller@silabs.com 2019-09-19T14:25:44+00:00 c7ff39dd8b5393c55b0a8a5dedb5ba13f4c838a8 A few tasks remain to be done in order to finish chip initial configuration: - configure chip to use multi-tx confirmation (speed up data transfer) - configure chip to use wake-up feature (save power consumption during runtime) - set hardware configuration (clocks, RF, pinout, etc...) using a Platform Data Set (PDS) file On release, driver completely shutdown the chip to save power consumption. Documentation about PDS and PDS data for sample boards are available here[1]. One day, PDS data may find a place in device tree but, currently, PDS is too much linked with firmware to allowing that. This patch also add "send_pds" file in debugfs to be able to dynamically change PDS (only for debug, of course). [1]: https://github.com/SiliconLabs/wfx-firmware/tree/master/PDS Signed-off-by: Jérôme Pouiller <jerome.pouiller@silabs.com> Link: https://lore.kernel.org/r/20190919142527.31797-15-Jerome.Pouiller@silabs.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> 
A few tasks remain to be done in order to finish chip initial
configuration:
   - configure chip to use multi-tx confirmation (speed up data
     transfer)
   - configure chip to use wake-up feature (save power consumption
     during runtime)
   - set hardware configuration (clocks, RF, pinout, etc...) using a
     Platform Data Set (PDS) file

On release, driver completely shutdown the chip to save power
consumption.

Documentation about PDS and PDS data for sample boards are available
here[1]. One day, PDS data may find a place in device tree but,
currently, PDS is too much linked with firmware to allowing that.

This patch also add "send_pds" file in debugfs to be able to dynamically
change PDS (only for debug, of course).

[1]: https://github.com/SiliconLabs/wfx-firmware/tree/master/PDS

Signed-off-by: Jérôme Pouiller <jerome.pouiller@silabs.com>
Link: https://lore.kernel.org/r/20190919142527.31797-15-Jerome.Pouiller@silabs.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
staging: wfx: introduce "secure link" 2019-10-04T08:47:35+00:00 Jérôme Pouiller jerome.pouiller@silabs.com 2019-09-19T14:25:43+00:00 846239f641db5af8dd952575a65808281f2d849e Chip support encryption of the link between host and chip. This feature is called "secure link". Driver code on github[1] support it. However, it relies on mbedtls for cryptographic functions. So, I decided to not import this feature in current patch. However, in order to keep code synchronized between github and kernel, I imported all code related to this feature, even if most of it is just no-op. [1]: https://github.com/SiliconLabs/wfx-linux-driver/ Signed-off-by: Jérôme Pouiller <jerome.pouiller@silabs.com> Link: https://lore.kernel.org/r/20190919142527.31797-14-Jerome.Pouiller@silabs.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> 
Chip support encryption of the link between host and chip. This feature
is called "secure link". Driver code on github[1] support it. However,
it relies on mbedtls for cryptographic functions. So, I decided to not
import this feature in current patch. However, in order to keep code
synchronized between github and kernel, I imported all code related to
this feature, even if most of it is just no-op.

[1]: https://github.com/SiliconLabs/wfx-linux-driver/

Signed-off-by: Jérôme Pouiller <jerome.pouiller@silabs.com>
Link: https://lore.kernel.org/r/20190919142527.31797-14-Jerome.Pouiller@silabs.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
staging: wfx: allow to send commands to chip 2019-10-04T08:46:10+00:00 Jérôme Pouiller jerome.pouiller@silabs.com 2019-09-19T14:25:42+00:00 4f8b7fabb15df3658564a98971fc67029be1815d Chip has multiple input buffers and can handle multiple 802.11 frames in parallel. However, other HIF command must be sent sequentially. wsm_send_cmd() handles these requests. This commit also add send_hif_cmd in debugfs. This file allows to send arbitrary commands to chip. It can be used for debug and testing. Signed-off-by: Jérôme Pouiller <jerome.pouiller@silabs.com> Link: https://lore.kernel.org/r/20190919142527.31797-12-Jerome.Pouiller@silabs.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> 
Chip has multiple input buffers and can handle multiple 802.11 frames
in parallel. However, other HIF command must be sent sequentially.
wsm_send_cmd() handles these requests.

This commit also add send_hif_cmd in debugfs. This file allows to send
arbitrary commands to chip. It can be used for debug and testing.

Signed-off-by: Jérôme Pouiller <jerome.pouiller@silabs.com>
Link: https://lore.kernel.org/r/20190919142527.31797-12-Jerome.Pouiller@silabs.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
staging: wfx: instantiate mac80211 data 2019-10-04T08:46:09+00:00 Jérôme Pouiller jerome.pouiller@silabs.com 2019-09-19T14:25:41+00:00 e16e7f0716a6ba9a690fc5229a6e35e00e03b805 Allocate a struct ieee80211_hw but do not yet register it. Signed-off-by: Jérôme Pouiller <jerome.pouiller@silabs.com> Link: https://lore.kernel.org/r/20190919142527.31797-11-Jerome.Pouiller@silabs.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> 
Allocate a struct ieee80211_hw but do not yet register it.

Signed-off-by: Jérôme Pouiller <jerome.pouiller@silabs.com>
Link: https://lore.kernel.org/r/20190919142527.31797-11-Jerome.Pouiller@silabs.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>