linux_kernel/drivers/net/wireless/marvell/mwifiex

# Copyright (C) 2011-2014, Marvell International Ltd.
#
# This software file (the "File") is distributed by Marvell International
# Ltd. under the terms of the GNU General Public License Version 2, June 1991
# (the "License"). You may use, redistribute and/or modify this File in
# accordance with the terms and conditions of the License, a copy of which
# is available by writing to the Free Software Foundation, Inc.,
# 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA or on the
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# THE FILE IS DISTRIBUTED AS-IS, WITHOUT WARRANTY OF ANY KIND, AND THE
# IMPLIED WARRANTIES OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE
# ARE EXPRESSLY DISCLAIMED. The License provides additional details about
# this warranty disclaimer.


===============================================================================
U S E R M A N U A L

1) FOR DRIVER INSTALL

a) Copy sd8787.bin to /lib/firmware/mrvl/ directory,
create the directory if it doesn't exist.
b) Install WLAN driver,
insmod mwifiex.ko
c) Uninstall WLAN driver,
ifconfig mlanX down
rmmod mwifiex


2) FOR DRIVER CONFIGURATION AND INFO
The configurations can be done either using the 'iw' user space
utility or debugfs.

a) 'iw' utility commands

Following are some useful iw commands:-

iw dev mlan0 scan

This command will trigger a scan.
The command will then display the scan table entries

iw dev mlan0 connect -w [] [] [key 0:abcde d:1123456789a]
The above command can be used to connect to an AP with a particular SSID.
Ap's operating frequency can be specified or even the bssid. If the AP is using
WEP encryption, wep keys can be specified in the command.
Note: Every time before connecting to an AP scan command (iw dev mlan0 scan) should be used by user.

iw dev mlan0 disconnect
This command will be used to disconnect from an AP.


iw dev mlan0 ibss join [fixed-freq] [fixed-bssid] [key 0:abcde]
The command will be used to join or create an ibss. Optionally, operating frequency,
bssid and the security related parameters can be specified while joining/creating
and ibss.

iw dev mlan0 ibss leave
The command will be used to leave an ibss network.

iw dev mlan0 link
The command will be used to get the connection status. The command will return parameters
such as SSID, operating frequency, rx/tx packets, signal strength, tx bitrate.

Apart from the iw utility all standard configurations using the 'iwconfig' utility are also supported.

b) Debugfs interface

The debugfs interface can be used for configurations and for getting
some useful information from the driver.
The section below explains the configurations that can be
done.

Mount debugfs to /debugfs mount point:

mkdir /debugfs
mount -t debugfs debugfs /debugfs

The information is provided in /debugfs/mwifiex/mlanX/:

iw reg set
The command will be used to change the regulatory domain.

iw reg get
The command will be used to get current regulatory domain.

info
This command is used to get driver info.

Usage:
cat info

driver_name = "mwifiex"
driver_version =
interface_name = "mlanX"
bss_mode = "Ad-hoc" | "Managed" | "Auto" | "Unknown"
media_state = "Disconnected" | "Connected"
mac_address = <6-byte adapter MAC address>
multicase_count =
essid =
bssid =
channel =
region_code =
multicasr_address[n] =
num_tx_bytes =
num_rx_bytes =
num_tx_pkts =
num_rx_pkts =
num_tx_pkts_dropped =
num_rx_pkts_dropped =
num_tx_pkts_err =
num_rx_pkts_err =
carrier "on" | "off"
tx queue "stopped" | "started"

The following debug info are provided in /debugfs/mwifiex/mlanX/debug:

int_counter =
wmm_ac_vo =
wmm_ac_vi =
wmm_ac_be =
wmm_ac_bk =
tx_buf_size =
curr_tx_buf_size =
ps_mode = <0/1, CAM mode/PS mode>
ps_state = <0/1/2/3, full power state/awake state/pre-sleep state/sleep state>
is_deep_sleep = <0/1, not deep sleep state/deep sleep state>
wakeup_dev_req = <0/1, wakeup device not required/required>
wakeup_tries =
hs_configured = <0/1, host sleep not configured/configured>
hs_activated = <0/1, extended host sleep not activated/activated>
num_tx_timeout =
is_cmd_timedout = <0/1 command timeout not occurred/occurred>
timeout_cmd_id =
timeout_cmd_act =
last_cmd_id =
last_cmd_act =
last_cmd_index = <0 based last command index>
last_cmd_resp_id =
last_cmd_resp_index = <0 based last command response index>
last_event =
last_event_index = <0 based last event index>
num_cmd_h2c_fail =
num_cmd_sleep_cfm_fail =
num_tx_h2c_fail =
num_evt_deauth =
num_evt_disassoc =
num_evt_link_lost =
num_cmd_deauth =
num_cmd_assoc_ok =
num_cmd_assoc_fail =
cmd_sent = <0/1, send command resources available/sending command to device>
data_sent = <0/1, send data resources available/sending data to device>
mp_rd_bitmap =
mp_wr_bitmap =
cmd_resp_received = <0/1, no cmd response to process/response received and yet to process>
event_received = <0/1, no event to process/event received and yet to process>
cmd_pending =
tx_pending =
rx_pending =


3) FOR DRIVER CONFIGURATION

regrdwr
This command is used to read/write the adapter register.

Usage:
echo " [value]" > regrdwr
cat regrdwr

where the parameters are,
: 1:MAC/SOC, 2:BBP, 3:RF, 4:PMIC, 5:CAU
: offset of register
[value]: value to be written

Examples:
echo "1 0xa060" > regrdwr : Read the MAC register
echo "1 0xa060 0x12" > regrdwr : Write the MAC register
echo "1 0xa794 0x80000000" > regrdwr
: Write 0x80000000 to MAC register

memrw
This command is used to read/write the firmware memory.

Usage:
1) For reading firmware memory location.
echo r 0 > /sys/kernel/debug/mwifiex/mlan0/memrw
cat /sys/kernel/debug/mwifiex/mlan0/memrw
2) For writing value to firmware memory location.
echo w [value] > /sys/kernel/debug/mwifiex/mlan0/memrw

where the parameters are,
: memory address
[value]: value to be written

Examples:
echo r 0x4cf70 0 > /sys/kernel/debug/mwifiex/mlan0/memrw
cat /sys/kernel/debug/mwifiex/mlan0/memrw
: Read memory address 0x4cf70
iwpriv mlan0 memrdwr -0x7fff6000 -0x40000000
echo w 0x8000a000 0xc0000000 > /sys/kernel/debug/mwifiex/mlan0/memrw
: Write 0xc0000000 to memory address 0x8000a000

rdeeprom
This command is used to read the EEPROM contents of the card.

Usage:
echo " " > rdeeprom
cat rdeeprom

where the parameters are,
: multiples of 4
: 4-20, multiples of 4

Example:
echo "0 20" > rdeeprom : Read 20 bytes of EEPROM data from offset 0

hscfg
This command is used to debug/simulate host sleep feature using
different configuration parameters.

Usage:
echo " [GPIO# [gap]]]" > hscfg
cat hscfg

where the parameters are,
: bit 0 = 1 -- broadcast data
bit 1 = 1 -- unicast data
bit 2 = 1 -- mac event
bit 3 = 1 -- multicast data
[GPIO#]: pin number of GPIO used to wakeup the host.
GPIO pin# (e.g. 0-7) or 0xff (interface, e.g. SDIO
will be used instead).
[gap]: the gap in milliseconds between wakeup signal and
wakeup event or 0xff for special setting (host
acknowledge required) when GPIO is used to wakeup host.

Examples:
echo "-1" > hscfg : Cancel host sleep mode
echo "3" > hscfg : Broadcast and unicast data;
Use GPIO and gap set previously
echo "2 3" > hscfg : Unicast data and GPIO 3;
Use gap set previously
echo "2 1 160" > hscfg : Unicast data, GPIO 1 and gap 160 ms
echo "2 1 0xff" > hscfg : Unicast data, GPIO 1; Wait for host
to ack before sending wakeup event

getlog
This command is used to get the statistics available in the station.
Usage:

cat getlog

device_dump
This command is used to dump driver information and firmware memory
segments.
Usage:

cat fw_dump

verext
This command is used to get extended firmware version string using
different configuration parameters.

Usage:
echo "[version_str_sel]" > verext
cat verext

[version_str_sel]: firmware support several extend version
string cases, include 0/1/10/20/21/99
===============================================================================