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-rw-r--r--Documentation/admin-guide/index.rst1
-rw-r--r--Documentation/admin-guide/wimax/i2400m.rst (renamed from Documentation/wimax/README.i2400m)145
-rw-r--r--Documentation/admin-guide/wimax/index.rst19
-rw-r--r--Documentation/admin-guide/wimax/wimax.rst (renamed from Documentation/wimax/README.wimax)38
4 files changed, 127 insertions, 76 deletions
diff --git a/Documentation/admin-guide/index.rst b/Documentation/admin-guide/index.rst
index 200e47820c37..534373816d7f 100644
--- a/Documentation/admin-guide/index.rst
+++ b/Documentation/admin-guide/index.rst
@@ -108,6 +108,7 @@ configure specific aspects of kernel behavior to your liking.
pnp
rtc
svga
+ wimax/index
video-output
.. only:: subproject and html
diff --git a/Documentation/wimax/README.i2400m b/Documentation/admin-guide/wimax/i2400m.rst
index 7dffd8919cb0..194388c0c351 100644
--- a/Documentation/wimax/README.i2400m
+++ b/Documentation/admin-guide/wimax/i2400m.rst
@@ -1,18 +1,23 @@
+.. include:: <isonum.txt>
- Driver for the Intel Wireless Wimax Connection 2400m
+====================================================
+Driver for the Intel Wireless Wimax Connection 2400m
+====================================================
- (C) 2008 Intel Corporation < linux-wimax@intel.com >
+:Copyright: |copy| 2008 Intel Corporation < linux-wimax@intel.com >
This provides a driver for the Intel Wireless WiMAX Connection 2400m
and a basic Linux kernel WiMAX stack.
1. Requirements
+===============
* Linux installation with Linux kernel 2.6.22 or newer (if building
from a separate tree)
* Intel i2400m Echo Peak or Baxter Peak; this includes the Intel
Wireless WiMAX/WiFi Link 5x50 series.
* build tools:
+
+ Linux kernel development package for the target kernel; to
build against your currently running kernel, you need to have
the kernel development package corresponding to the running
@@ -22,8 +27,10 @@
+ GNU C Compiler, make
2. Compilation and installation
+===============================
2.1. Compilation of the drivers included in the kernel
+------------------------------------------------------
Configure the kernel; to enable the WiMAX drivers select Drivers >
Networking Drivers > WiMAX device support. Enable all of them as
@@ -36,37 +43,39 @@
Compile and install your kernel as usual.
2.2. Compilation of the drivers distributed as an standalone module
+-------------------------------------------------------------------
- To compile
+ To compile::
-$ cd source/directory
-$ make
+ $ cd source/directory
+ $ make
Once built you can load and unload using the provided load.sh script;
load.sh will load the modules, load.sh u will unload them.
To install in the default kernel directories (and enable auto loading
- when the device is plugged):
+ when the device is plugged)::
-$ make install
-$ depmod -a
+ $ make install
+ $ depmod -a
If your kernel development files are located in a non standard
directory or if you want to build for a kernel that is not the
- currently running one, set KDIR to the right location:
+ currently running one, set KDIR to the right location::
-$ make KDIR=/path/to/kernel/dev/tree
+ $ make KDIR=/path/to/kernel/dev/tree
For more information, please contact linux-wimax@intel.com.
3. Installing the firmware
+--------------------------
The firmware can be obtained from http://linuxwimax.org or might have
been supplied with your hardware.
- It has to be installed in the target system:
- *
-$ cp FIRMWAREFILE.sbcf /lib/firmware/i2400m-fw-BUSTYPE-1.3.sbcf
+ It has to be installed in the target system::
+
+ $ cp FIRMWAREFILE.sbcf /lib/firmware/i2400m-fw-BUSTYPE-1.3.sbcf
* NOTE: if your firmware came in an .rpm or .deb file, just install
it as normal, with the rpm (rpm -i FIRMWARE.rpm) or dpkg
@@ -76,6 +85,7 @@ $ cp FIRMWAREFILE.sbcf /lib/firmware/i2400m-fw-BUSTYPE-1.3.sbcf
with other types.
4. Design
+=========
This package contains two major parts: a WiMAX kernel stack and a
driver for the Intel i2400m.
@@ -102,16 +112,17 @@ $ cp FIRMWAREFILE.sbcf /lib/firmware/i2400m-fw-BUSTYPE-1.3.sbcf
API calls should be replaced with the target OS's.
5. Usage
+========
To load the driver, follow the instructions in the install section;
once the driver is loaded, plug in the device (unless it is permanently
plugged in). The driver will enumerate the device, upload the firmware
and output messages in the kernel log (dmesg, /var/log/messages or
- /var/log/kern.log) such as:
+ /var/log/kern.log) such as::
-...
-i2400m_usb 5-4:1.0: firmware interface version 8.0.0
-i2400m_usb 5-4:1.0: WiMAX interface wmx0 (00:1d:e1:01:94:2c) ready
+ ...
+ i2400m_usb 5-4:1.0: firmware interface version 8.0.0
+ i2400m_usb 5-4:1.0: WiMAX interface wmx0 (00:1d:e1:01:94:2c) ready
At this point the device is ready to work.
@@ -120,38 +131,42 @@ i2400m_usb 5-4:1.0: WiMAX interface wmx0 (00:1d:e1:01:94:2c) ready
on how to scan, connect and disconnect.
5.1. Module parameters
+----------------------
Module parameters can be set at kernel or module load time or by
- echoing values:
+ echoing values::
-$ echo VALUE > /sys/module/MODULENAME/parameters/PARAMETERNAME
+ $ echo VALUE > /sys/module/MODULENAME/parameters/PARAMETERNAME
To make changes permanent, for example, for the i2400m module, you can
- also create a file named /etc/modprobe.d/i2400m containing:
+ also create a file named /etc/modprobe.d/i2400m containing::
-options i2400m idle_mode_disabled=1
+ options i2400m idle_mode_disabled=1
- To find which parameters are supported by a module, run:
+ To find which parameters are supported by a module, run::
-$ modinfo path/to/module.ko
+ $ modinfo path/to/module.ko
During kernel bootup (if the driver is linked in the kernel), specify
- the following to the kernel command line:
+ the following to the kernel command line::
-i2400m.PARAMETER=VALUE
+ i2400m.PARAMETER=VALUE
5.1.1. i2400m: idle_mode_disabled
+^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
The i2400m module supports a parameter to disable idle mode. This
parameter, once set, will take effect only when the device is
reinitialized by the driver (eg: following a reset or a reconnect).
5.2. Debug operations: debugfs entries
+--------------------------------------
The driver will register debugfs entries that allow the user to tweak
debug settings. There are three main container directories where
entries are placed, which correspond to the three blocks a i2400m WiMAX
driver has:
+
* /sys/kernel/debug/wimax:DEVNAME/ for the generic WiMAX stack
controls
* /sys/kernel/debug/wimax:DEVNAME/i2400m for the i2400m generic
@@ -163,52 +178,55 @@ i2400m.PARAMETER=VALUE
/sys/kernel/debug, those paths will change.
5.2.1. Increasing debug output
+^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
The files named *dl_* indicate knobs for controlling the debug output
- of different submodules:
- *
-# find /sys/kernel/debug/wimax\:wmx0 -name \*dl_\*
-/sys/kernel/debug/wimax:wmx0/i2400m-usb/dl_tx
-/sys/kernel/debug/wimax:wmx0/i2400m-usb/dl_rx
-/sys/kernel/debug/wimax:wmx0/i2400m-usb/dl_notif
-/sys/kernel/debug/wimax:wmx0/i2400m-usb/dl_fw
-/sys/kernel/debug/wimax:wmx0/i2400m-usb/dl_usb
-/sys/kernel/debug/wimax:wmx0/i2400m/dl_tx
-/sys/kernel/debug/wimax:wmx0/i2400m/dl_rx
-/sys/kernel/debug/wimax:wmx0/i2400m/dl_rfkill
-/sys/kernel/debug/wimax:wmx0/i2400m/dl_netdev
-/sys/kernel/debug/wimax:wmx0/i2400m/dl_fw
-/sys/kernel/debug/wimax:wmx0/i2400m/dl_debugfs
-/sys/kernel/debug/wimax:wmx0/i2400m/dl_driver
-/sys/kernel/debug/wimax:wmx0/i2400m/dl_control
-/sys/kernel/debug/wimax:wmx0/wimax_dl_stack
-/sys/kernel/debug/wimax:wmx0/wimax_dl_op_rfkill
-/sys/kernel/debug/wimax:wmx0/wimax_dl_op_reset
-/sys/kernel/debug/wimax:wmx0/wimax_dl_op_msg
-/sys/kernel/debug/wimax:wmx0/wimax_dl_id_table
-/sys/kernel/debug/wimax:wmx0/wimax_dl_debugfs
+ of different submodules::
+
+ # find /sys/kernel/debug/wimax\:wmx0 -name \*dl_\*
+ /sys/kernel/debug/wimax:wmx0/i2400m-usb/dl_tx
+ /sys/kernel/debug/wimax:wmx0/i2400m-usb/dl_rx
+ /sys/kernel/debug/wimax:wmx0/i2400m-usb/dl_notif
+ /sys/kernel/debug/wimax:wmx0/i2400m-usb/dl_fw
+ /sys/kernel/debug/wimax:wmx0/i2400m-usb/dl_usb
+ /sys/kernel/debug/wimax:wmx0/i2400m/dl_tx
+ /sys/kernel/debug/wimax:wmx0/i2400m/dl_rx
+ /sys/kernel/debug/wimax:wmx0/i2400m/dl_rfkill
+ /sys/kernel/debug/wimax:wmx0/i2400m/dl_netdev
+ /sys/kernel/debug/wimax:wmx0/i2400m/dl_fw
+ /sys/kernel/debug/wimax:wmx0/i2400m/dl_debugfs
+ /sys/kernel/debug/wimax:wmx0/i2400m/dl_driver
+ /sys/kernel/debug/wimax:wmx0/i2400m/dl_control
+ /sys/kernel/debug/wimax:wmx0/wimax_dl_stack
+ /sys/kernel/debug/wimax:wmx0/wimax_dl_op_rfkill
+ /sys/kernel/debug/wimax:wmx0/wimax_dl_op_reset
+ /sys/kernel/debug/wimax:wmx0/wimax_dl_op_msg
+ /sys/kernel/debug/wimax:wmx0/wimax_dl_id_table
+ /sys/kernel/debug/wimax:wmx0/wimax_dl_debugfs
By reading the file you can obtain the current value of said debug
level; by writing to it, you can set it.
To increase the debug level of, for example, the i2400m's generic TX
- engine, just write:
+ engine, just write::
-$ echo 3 > /sys/kernel/debug/wimax:wmx0/i2400m/dl_tx
+ $ echo 3 > /sys/kernel/debug/wimax:wmx0/i2400m/dl_tx
Increasing numbers yield increasing debug information; for details of
what is printed and the available levels, check the source. The code
uses 0 for disabled and increasing values until 8.
5.2.2. RX and TX statistics
+^^^^^^^^^^^^^^^^^^^^^^^^^^^
The i2400m/rx_stats and i2400m/tx_stats provide statistics about the
- data reception/delivery from the device:
+ data reception/delivery from the device::
-$ cat /sys/kernel/debug/wimax:wmx0/i2400m/rx_stats
-45 1 3 34 3104 48 480
+ $ cat /sys/kernel/debug/wimax:wmx0/i2400m/rx_stats
+ 45 1 3 34 3104 48 480
+
+ The numbers reported are:
- The numbers reported are
* packets/RX-buffer: total, min, max
* RX-buffers: total RX buffers received, accumulated RX buffer size
in bytes, min size received, max size received
@@ -216,9 +234,9 @@ $ cat /sys/kernel/debug/wimax:wmx0/i2400m/rx_stats
Thus, to find the average buffer size received, divide accumulated
RX-buffer / total RX-buffers.
- To clear the statistics back to 0, write anything to the rx_stats file:
+ To clear the statistics back to 0, write anything to the rx_stats file::
-$ echo 1 > /sys/kernel/debug/wimax:wmx0/i2400m_rx_stats
+ $ echo 1 > /sys/kernel/debug/wimax:wmx0/i2400m_rx_stats
Likewise for TX.
@@ -227,14 +245,16 @@ $ echo 1 > /sys/kernel/debug/wimax:wmx0/i2400m_rx_stats
to the host. See drivers/net/wimax/i2400m/tx.c.
5.2.3. Tracing messages received from user space
+^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
To echo messages received from user space into the trace pipe that the
i2400m driver creates, set the debug file i2400m/trace_msg_from_user to
- 1:
- *
-$ echo 1 > /sys/kernel/debug/wimax:wmx0/i2400m/trace_msg_from_user
+ 1::
+
+ $ echo 1 > /sys/kernel/debug/wimax:wmx0/i2400m/trace_msg_from_user
5.2.4. Performing a device reset
+^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
By writing a 0, a 1 or a 2 to the file
/sys/kernel/debug/wimax:wmx0/reset, the driver performs a warm (without
@@ -242,18 +262,21 @@ $ echo 1 > /sys/kernel/debug/wimax:wmx0/i2400m/trace_msg_from_user
(bus specific) reset on the device.
5.2.5. Asking the device to enter power saving mode
+^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
By writing any value to the /sys/kernel/debug/wimax:wmx0 file, the
device will attempt to enter power saving mode.
6. Troubleshooting
+==================
-6.1. Driver complains about 'i2400m-fw-usb-1.2.sbcf: request failed'
+6.1. Driver complains about ``i2400m-fw-usb-1.2.sbcf: request failed``
+----------------------------------------------------------------------
If upon connecting the device, the following is output in the kernel
- log:
+ log::
-i2400m_usb 5-4:1.0: fw i2400m-fw-usb-1.3.sbcf: request failed: -2
+ i2400m_usb 5-4:1.0: fw i2400m-fw-usb-1.3.sbcf: request failed: -2
This means that the driver cannot locate the firmware file named
/lib/firmware/i2400m-fw-usb-1.2.sbcf. Check that the file is present in
diff --git a/Documentation/admin-guide/wimax/index.rst b/Documentation/admin-guide/wimax/index.rst
new file mode 100644
index 000000000000..fdf7c1f99ff5
--- /dev/null
+++ b/Documentation/admin-guide/wimax/index.rst
@@ -0,0 +1,19 @@
+.. SPDX-License-Identifier: GPL-2.0
+
+===============
+WiMAX subsystem
+===============
+
+.. toctree::
+ :maxdepth: 2
+
+ wimax
+
+ i2400m
+
+.. only:: subproject and html
+
+ Indices
+ =======
+
+ * :ref:`genindex`
diff --git a/Documentation/wimax/README.wimax b/Documentation/admin-guide/wimax/wimax.rst
index b78c4378084e..817ee8ba2732 100644
--- a/Documentation/wimax/README.wimax
+++ b/Documentation/admin-guide/wimax/wimax.rst
@@ -1,12 +1,16 @@
+.. include:: <isonum.txt>
- Linux kernel WiMAX stack
+========================
+Linux kernel WiMAX stack
+========================
- (C) 2008 Intel Corporation < linux-wimax@intel.com >
+:Copyright: |copy| 2008 Intel Corporation < linux-wimax@intel.com >
This provides a basic Linux kernel WiMAX stack to provide a common
control API for WiMAX devices, usable from kernel and user space.
1. Design
+=========
The WiMAX stack is designed to provide for common WiMAX control
services to current and future WiMAX devices from any vendor.
@@ -31,6 +35,7 @@
include/linux/wimax.h.
2. Usage
+========
For usage in a driver (registration, API, etc) please refer to the
instructions in the header file include/linux/wimax.h.
@@ -40,6 +45,7 @@
control.
2.1. Obtaining debug information: debugfs entries
+-------------------------------------------------
The WiMAX stack is compiled, by default, with debug messages that can
be used to diagnose issues. By default, said messages are disabled.
@@ -52,20 +58,22 @@
create more subentries below it.
2.1.1. Increasing debug output
+------------------------------
The files named *dl_* indicate knobs for controlling the debug output
- of different submodules of the WiMAX stack:
- *
-# find /sys/kernel/debug/wimax\:wmx0 -name \*dl_\*
-/sys/kernel/debug/wimax:wmx0/wimax_dl_stack
-/sys/kernel/debug/wimax:wmx0/wimax_dl_op_rfkill
-/sys/kernel/debug/wimax:wmx0/wimax_dl_op_reset
-/sys/kernel/debug/wimax:wmx0/wimax_dl_op_msg
-/sys/kernel/debug/wimax:wmx0/wimax_dl_id_table
-/sys/kernel/debug/wimax:wmx0/wimax_dl_debugfs
-/sys/kernel/debug/wimax:wmx0/.... # other driver specific files
-
- NOTE: Of course, if debugfs is mounted in a directory other than
+ of different submodules of the WiMAX stack::
+
+ # find /sys/kernel/debug/wimax\:wmx0 -name \*dl_\*
+ /sys/kernel/debug/wimax:wmx0/wimax_dl_stack
+ /sys/kernel/debug/wimax:wmx0/wimax_dl_op_rfkill
+ /sys/kernel/debug/wimax:wmx0/wimax_dl_op_reset
+ /sys/kernel/debug/wimax:wmx0/wimax_dl_op_msg
+ /sys/kernel/debug/wimax:wmx0/wimax_dl_id_table
+ /sys/kernel/debug/wimax:wmx0/wimax_dl_debugfs
+ /sys/kernel/debug/wimax:wmx0/.... # other driver specific files
+
+ NOTE:
+ Of course, if debugfs is mounted in a directory other than
/sys/kernel/debug, those paths will change.
By reading the file you can obtain the current value of said debug
@@ -74,7 +82,7 @@
To increase the debug level of, for example, the id-table submodule,
just write:
-$ echo 3 > /sys/kernel/debug/wimax:wmx0/wimax_dl_id_table
+ $ echo 3 > /sys/kernel/debug/wimax:wmx0/wimax_dl_id_table
Increasing numbers yield increasing debug information; for details of
what is printed and the available levels, check the source. The code
generated by cgit (git 2.34.1) at 2024-06-07 16:04:27 +0000