Hi Amitkumar,
> This patch adds firmware dump support for marvell
> bluetooth chipset. Currently only SD8897 is supported.
> This is implemented based on dev_coredump, a new mechnism
> introduced in kernel 3.18rc3
>
> Firmware dump can be trigger by
> echo 1 > /sys/kernel/debug/bluetooth/hci*/config/fw_dump
> and when the dump operation is completed, data can be read by
> cat /sys/class/devcoredump/devcd*/data
>
> We have prepared following script to divide fw memory
> dump data into multiple files based on memory type.
>
> [root]# cat btmrvl_split_dump_data.sh
> #!/bin/bash
> # usage: ./btmrvl_split_dump_data.sh dump_data
>
> fw_dump_data=$1
>
> mem_type="ITCM DTCM SQRAM APU CIU ICU MAC EXT7 EXT8 EXT9 EXT10 EXT11 EXT12 EXT13 EXTLAST"
>
> for name in ${mem_type[@]}
> do
> sed -n "/Start dump $name/,/End dump/p" $fw_dump_data > tmp.$name.log
> if [ ! -s tmp.$name.log ]
> then
> rm -rf tmp.$name.log
> else
> # Remove the describle info "Start dump" and "End dump"
> sed '1d' tmp.$name.log | sed '$d' > /data/$name.log
> if [ -s /data/$name.log ]
> then
> echo "generate /data/$name.log"
> else
> sed '1d' tmp.$name.log | sed '$d' > /var/$name.log
> echo "generate /var/$name.log"
> fi
> rm -rf tmp.$name.log
> fi
> done
>
> Signed-off-by: Xinming Hu <huxm@xxxxxxxxxxx>
> Signed-off-by: Cathy Luo <cluo@xxxxxxxxxxx>
> Signed-off-by: Avinash Patil <patila@xxxxxxxxxxx>
> Reviewed-by: Johannes Berg <johannes@xxxxxxxxxxxxxxxx>
> Reviewed-by: Marcel Holtmann <marcel@xxxxxxxxxxxx>
> Signed-off-by: Amitkumar Karwar <akarwar@xxxxxxxxxxx>
> ---
> v4: Change if/else check to improve readability
> Move "#include <linux/devcoredump.h>" to btmrvl_sdio.c file.
> Don't expose debugfs entry by showing an error when the callback is
> not defined.
> BT_ERR/BT_INFO already takes care of newline. Remove extra "\n" in
> the message.
> v3: Change fw_dump debugfs file permissions to write only
> Replace kstrtol with strtobool
> v2: Add "select WANT_DEV_COREDUMP" in Kconfig
> Use write debugfs command instead of read to trigger dump operation.
> ---
> drivers/bluetooth/Kconfig | 1 +
> drivers/bluetooth/btmrvl_debugfs.c | 31 ++++
> drivers/bluetooth/btmrvl_drv.h | 20 +++
> drivers/bluetooth/btmrvl_main.c | 7 +
> drivers/bluetooth/btmrvl_sdio.c | 300 +++++++++++++++++++++++++++++++++++++
> drivers/bluetooth/btmrvl_sdio.h | 5 +
> 6 files changed, 364 insertions(+)
patch has been applied to bluetooth-next tree.
Regards
Marcel
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