Also update references to sony-laptop.txt in Kconfig. Signed-off-by: Carlos Corbacho <carlos@xxxxxxxxxxxxxxxxxxx> CC: Len Brown <lenb@xxxxxxxxxx> CC: Randy Dunlap <randy.dunlap@xxxxxxxxxx> CC: Mattia Dongili <malattia@xxxxxxxx> --- Documentation/00-INDEX | 2 - Documentation/laptops/00-INDEX | 2 + Documentation/laptops/sony-laptop.txt | 117 +++++++++++++++++++++++++++++++++ Documentation/sony-laptop.txt | 117 --------------------------------- drivers/misc/Kconfig | 2 - 5 files changed, 120 insertions(+), 120 deletions(-) create mode 100644 Documentation/laptops/sony-laptop.txt delete mode 100644 Documentation/sony-laptop.txt diff --git a/Documentation/00-INDEX b/Documentation/00-INDEX index d69b2a3..012ef98 100644 --- a/Documentation/00-INDEX +++ b/Documentation/00-INDEX @@ -353,8 +353,6 @@ sh/ - directory with info on porting Linux to a new architecture. smart-config.txt - description of the Smart Config makefile feature. -sony-laptop.txt - - Sony Notebook Control Driver (SNC) Readme. sonypi.txt - info on Linux Sony Programmable I/O Device support. sound/ diff --git a/Documentation/laptops/00-INDEX b/Documentation/laptops/00-INDEX index e806b08..c5bac77 100644 --- a/Documentation/laptops/00-INDEX +++ b/Documentation/laptops/00-INDEX @@ -1,4 +1,6 @@ 00-INDEX - This file +sony-laptop.txt + - Sony Notebook Control Driver (SNC) Readme. thinkpad-acpi.txt - information on the (IBM and Lenovo) ThinkPad ACPI Extras driver. diff --git a/Documentation/laptops/sony-laptop.txt b/Documentation/laptops/sony-laptop.txt new file mode 100644 index 0000000..7a5c1a8 --- /dev/null +++ b/Documentation/laptops/sony-laptop.txt @@ -0,0 +1,117 @@ +Sony Notebook Control Driver (SNC) Readme +----------------------------------------- + Copyright (C) 2004- 2005 Stelian Pop <stelian@xxxxxxxxxx> + Copyright (C) 2007 Mattia Dongili <malattia@xxxxxxxx> + +This mini-driver drives the SNC and SPIC device present in the ACPI BIOS of the +Sony Vaio laptops. This driver mixes both devices functions under the same +(hopefully consistent) interface. This also means that the sonypi driver is +obsoleted by sony-laptop now. + +Fn keys (hotkeys): +------------------ +Some models report hotkeys through the SNC or SPIC devices, such events are +reported both through the ACPI subsystem as acpi events and through the INPUT +subsystem. See the logs of acpid or /proc/acpi/event and +/proc/bus/input/devices to find out what those events are and which input +devices are created by the driver. + +Backlight control: +------------------ +If your laptop model supports it, you will find sysfs files in the +/sys/class/backlight/sony/ +directory. You will be able to query and set the current screen +brightness: + brightness get/set screen brightness (an iteger + between 0 and 7) + actual_brightness reading from this file will query the HW + to get real brightness value + max_brightness the maximum brightness value + + +Platform specific: +------------------ +Loading the sony-laptop module will create a +/sys/devices/platform/sony-laptop/ +directory populated with some files. + +You then read/write integer values from/to those files by using +standard UNIX tools. + +The files are: + brightness_default screen brightness which will be set + when the laptop will be rebooted + cdpower power on/off the internal CD drive + audiopower power on/off the internal sound card + lanpower power on/off the internal ethernet card + (only in debug mode) + bluetoothpower power on/off the internal bluetooth device + fanspeed get/set the fan speed + +Note that some files may be missing if they are not supported +by your particular laptop model. + +Example usage: + # echo "1" > /sys/devices/platform/sony-laptop/brightness_default +sets the lowest screen brightness for the next and later reboots, + # echo "8" > /sys/devices/platform/sony-laptop/brightness_default +sets the highest screen brightness for the next and later reboots, + # cat /sys/devices/platform/sony-laptop/brightness_default +retrieves the value. + + # echo "0" > /sys/devices/platform/sony-laptop/audiopower +powers off the sound card, + # echo "1" > /sys/devices/platform/sony-laptop/audiopower +powers on the sound card. + +Development: +------------ + +If you want to help with the development of this driver (and +you are not afraid of any side effects doing strange things with +your ACPI BIOS could have on your laptop), load the driver and +pass the option 'debug=1'. + +REPEAT: DON'T DO THIS IF YOU DON'T LIKE RISKY BUSINESS. + +In your kernel logs you will find the list of all ACPI methods +the SNC device has on your laptop. You can see the GCDP/GCDP methods +used to pwer on/off the CD drive, but there are others. + +I HAVE NO IDEA WHAT THOSE METHODS DO. + +The sony-laptop driver creates, for some of those methods (the most +current ones found on several Vaio models), an entry under +/sys/devices/platform/sony-laptop, just like the 'cdpower' one. +You can create other entries corresponding to your own laptop methods by +further editing the source (see the 'sony_nc_values' table, and add a new +entry to this table with your get/set method names using the +SNC_HANDLE_NAMES macro). + +Your mission, should you accept it, is to try finding out what +those entries are for, by reading/writing random values from/to those +files and find out what is the impact on your laptop. + +Should you find anything interesting, please report it back to me, +I will not disavow all knowledge of your actions :) + +See also http://www.linux.it/~malattia/wiki/index.php/Sony_drivers for other +useful info. + +Bugs/Limitations: +----------------- + +* This driver is not based on official documentation from Sony + (because there is none), so there is no guarantee this driver + will work at all, or do the right thing. Although this hasn't + happened to me, this driver could do very bad things to your + laptop, including permanent damage. + +* The sony-laptop and sonypi drivers do not interact at all. In the + future, sonypi could use sony-laptop to do (part of) its business. + +* spicctrl, which is the userspace tool used to communicate with the + sonypi driver (through /dev/sonypi) does not try to use the + sony-laptop driver. In the future, spicctrl could try sonypi first, + and if it isn't present, try sony-laptop instead. + diff --git a/Documentation/sony-laptop.txt b/Documentation/sony-laptop.txt deleted file mode 100644 index 7a5c1a8..0000000 --- a/Documentation/sony-laptop.txt +++ /dev/null @@ -1,117 +0,0 @@ -Sony Notebook Control Driver (SNC) Readme ------------------------------------------ - Copyright (C) 2004- 2005 Stelian Pop <stelian@xxxxxxxxxx> - Copyright (C) 2007 Mattia Dongili <malattia@xxxxxxxx> - -This mini-driver drives the SNC and SPIC device present in the ACPI BIOS of the -Sony Vaio laptops. This driver mixes both devices functions under the same -(hopefully consistent) interface. This also means that the sonypi driver is -obsoleted by sony-laptop now. - -Fn keys (hotkeys): ------------------- -Some models report hotkeys through the SNC or SPIC devices, such events are -reported both through the ACPI subsystem as acpi events and through the INPUT -subsystem. See the logs of acpid or /proc/acpi/event and -/proc/bus/input/devices to find out what those events are and which input -devices are created by the driver. - -Backlight control: ------------------- -If your laptop model supports it, you will find sysfs files in the -/sys/class/backlight/sony/ -directory. You will be able to query and set the current screen -brightness: - brightness get/set screen brightness (an iteger - between 0 and 7) - actual_brightness reading from this file will query the HW - to get real brightness value - max_brightness the maximum brightness value - - -Platform specific: ------------------- -Loading the sony-laptop module will create a -/sys/devices/platform/sony-laptop/ -directory populated with some files. - -You then read/write integer values from/to those files by using -standard UNIX tools. - -The files are: - brightness_default screen brightness which will be set - when the laptop will be rebooted - cdpower power on/off the internal CD drive - audiopower power on/off the internal sound card - lanpower power on/off the internal ethernet card - (only in debug mode) - bluetoothpower power on/off the internal bluetooth device - fanspeed get/set the fan speed - -Note that some files may be missing if they are not supported -by your particular laptop model. - -Example usage: - # echo "1" > /sys/devices/platform/sony-laptop/brightness_default -sets the lowest screen brightness for the next and later reboots, - # echo "8" > /sys/devices/platform/sony-laptop/brightness_default -sets the highest screen brightness for the next and later reboots, - # cat /sys/devices/platform/sony-laptop/brightness_default -retrieves the value. - - # echo "0" > /sys/devices/platform/sony-laptop/audiopower -powers off the sound card, - # echo "1" > /sys/devices/platform/sony-laptop/audiopower -powers on the sound card. - -Development: ------------- - -If you want to help with the development of this driver (and -you are not afraid of any side effects doing strange things with -your ACPI BIOS could have on your laptop), load the driver and -pass the option 'debug=1'. - -REPEAT: DON'T DO THIS IF YOU DON'T LIKE RISKY BUSINESS. - -In your kernel logs you will find the list of all ACPI methods -the SNC device has on your laptop. You can see the GCDP/GCDP methods -used to pwer on/off the CD drive, but there are others. - -I HAVE NO IDEA WHAT THOSE METHODS DO. - -The sony-laptop driver creates, for some of those methods (the most -current ones found on several Vaio models), an entry under -/sys/devices/platform/sony-laptop, just like the 'cdpower' one. -You can create other entries corresponding to your own laptop methods by -further editing the source (see the 'sony_nc_values' table, and add a new -entry to this table with your get/set method names using the -SNC_HANDLE_NAMES macro). - -Your mission, should you accept it, is to try finding out what -those entries are for, by reading/writing random values from/to those -files and find out what is the impact on your laptop. - -Should you find anything interesting, please report it back to me, -I will not disavow all knowledge of your actions :) - -See also http://www.linux.it/~malattia/wiki/index.php/Sony_drivers for other -useful info. - -Bugs/Limitations: ------------------ - -* This driver is not based on official documentation from Sony - (because there is none), so there is no guarantee this driver - will work at all, or do the right thing. Although this hasn't - happened to me, this driver could do very bad things to your - laptop, including permanent damage. - -* The sony-laptop and sonypi drivers do not interact at all. In the - future, sonypi could use sony-laptop to do (part of) its business. - -* spicctrl, which is the userspace tool used to communicate with the - sonypi driver (through /dev/sonypi) does not try to use the - sony-laptop driver. In the future, spicctrl could try sonypi first, - and if it isn't present, try sony-laptop instead. - diff --git a/drivers/misc/Kconfig b/drivers/misc/Kconfig index 5716d2e..e3c70cd 100644 --- a/drivers/misc/Kconfig +++ b/drivers/misc/Kconfig @@ -183,7 +183,7 @@ config SONY_LAPTOP screen brightness control, Fn keys and allows powering on/off some devices. - Read <file:Documentation/sony-laptop.txt> for more information. + Read <file:Documentation/laptops/sony-laptop.txt> for more information. config SONYPI_COMPAT bool "Sonypi compatibility" - To unsubscribe from this list: send the line "unsubscribe linux-acpi" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
