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Merge branch 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mjg59/platform-drivers-x86

Browse source 
* 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mjg59/platform-drivers-x86:
  thinkpad-acpi fails to load with newer Thinkpad X201s BIOS
  acer-wmi: Fix capitalisation of GUID in module alias
  sony-laptop: keyboard backlight fixes
  sony-laptop: only show the handles sysfs file in debug mode
  samsung-laptop: set backlight type
  staging: samsung-laptop has moved to platform/x86
  samsung-laptop: Samsung R410P backlight driver
  samsung-laptop: add support for N230 model
  platform-drivers: x86: pmic: Restore the dropped buslock/unlock
  sony-laptop: fix early NULL pointer dereference
  msi-laptop: fix config-dependent build error
  eeepc-wmi: add keys found on EeePC 1215T
  asus-wmi: swap input name and phys
  asus-laptop: remove removed features from feature-removal-schedule.txt
This commit is contained in:
Linus Torvalds 2011-04-12 15:24:23 -07:00
commit d77d9597ad
15 changed files with 114 additions and 907 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

20
Documentation/feature-removal-schedule.txt
View file

@ -387,26 +387,6 @@ Who: Tejun Heo <tj@kernel.org>
----------------------------
What: Support for lcd_switch and display_get in asus-laptop driver
When: March 2010
Why: These two features use non-standard interfaces. There are the
only features that really need multiple path to guess what's
the right method name on a specific laptop.
Removing them will allow to remove a lot of code an significantly
clean the drivers.
This will affect the backlight code which won't be able to know
if the backlight is on or off. The platform display file will also be
write only (like the one in eeepc-laptop).
This should'nt affect a lot of user because they usually know
when their display is on or off.
Who: Corentin Chary <corentin.chary@gmail.com>
----------------------------
What: sysfs-class-rfkill state file
When: Feb 2014
Files: net/rfkill/core.c

3
drivers/platform/x86/Kconfig
View file

@ -187,7 +187,8 @@ config MSI_LAPTOP
depends on ACPI
depends on BACKLIGHT_CLASS_DEVICE
depends on RFKILL
depends on SERIO_I8042
depends on INPUT && SERIO_I8042
select INPUT_SPARSEKMAP
---help---
This is a driver for laptops built by MSI (MICRO-STAR
INTERNATIONAL):

2
drivers/platform/x86/acer-wmi.c
View file

@ -89,7 +89,7 @@ MODULE_LICENSE("GPL");
#define ACERWMID_EVENT_GUID "676AA15E-6A47-4D9F-A2CC-1E6D18D14026"
MODULE_ALIAS("wmi:67C3371D-95A3-4C37-BB61-DD47B491DAAB");
MODULE_ALIAS("wmi:6AF4F258-B401-42Fd-BE91-3D4AC2D7C0D3");
MODULE_ALIAS("wmi:6AF4F258-B401-42FD-BE91-3D4AC2D7C0D3");
MODULE_ALIAS("wmi:676AA15E-6A47-4D9F-A2CC-1E6D18D14026");
enum acer_wmi_event_ids {

4
drivers/platform/x86/asus-wmi.c
View file

@ -201,8 +201,8 @@ static int asus_wmi_input_init(struct asus_wmi *asus)
if (!asus->inputdev)
return -ENOMEM;
asus->inputdev->name = asus->driver->input_phys;
asus->inputdev->phys = asus->driver->input_name;
asus->inputdev->name = asus->driver->input_name;
asus->inputdev->phys = asus->driver->input_phys;
asus->inputdev->id.bustype = BUS_HOST;
asus->inputdev->dev.parent = &asus->platform_device->dev;

2
drivers/platform/x86/eeepc-wmi.c
View file

@ -67,9 +67,11 @@ static const struct key_entry eeepc_wmi_keymap[] = {
{ KE_KEY, 0x82, { KEY_CAMERA } },
{ KE_KEY, 0x83, { KEY_CAMERA_ZOOMIN } },
{ KE_KEY, 0x88, { KEY_WLAN } },
{ KE_KEY, 0xbd, { KEY_CAMERA } },
{ KE_KEY, 0xcc, { KEY_SWITCHVIDEOMODE } },
{ KE_KEY, 0xe0, { KEY_PROG1 } }, /* Task Manager */
{ KE_KEY, 0xe1, { KEY_F14 } }, /* Change Resolution */
{ KE_KEY, 0xe8, { KEY_SCREENLOCK } },
{ KE_KEY, 0xe9, { KEY_BRIGHTNESS_ZERO } },
{ KE_KEY, 0xeb, { KEY_CAMERA_ZOOMOUT } },
{ KE_KEY, 0xec, { KEY_CAMERA_UP } },

43
drivers/platform/x86/intel_pmic_gpio.c
View file

@ -74,6 +74,19 @@ struct pmic_gpio {
u32 trigger_type;
};
static void pmic_program_irqtype(int gpio, int type)
{
if (type & IRQ_TYPE_EDGE_RISING)
intel_scu_ipc_update_register(GPIO0 + gpio, 0x20, 0x20);
else
intel_scu_ipc_update_register(GPIO0 + gpio, 0x00, 0x20);
if (type & IRQ_TYPE_EDGE_FALLING)
intel_scu_ipc_update_register(GPIO0 + gpio, 0x10, 0x10);
else
intel_scu_ipc_update_register(GPIO0 + gpio, 0x00, 0x10);
};
static int pmic_gpio_direction_input(struct gpio_chip *chip, unsigned offset)
{
if (offset > 8) {
@ -166,16 +179,38 @@ static int pmic_gpio_to_irq(struct gpio_chip *chip, unsigned offset)
return pg->irq_base + offset;
}
static void pmic_bus_lock(struct irq_data *data)
{
struct pmic_gpio *pg = irq_data_get_irq_chip_data(data);
mutex_lock(&pg->buslock);
}
static void pmic_bus_sync_unlock(struct irq_data *data)
{
struct pmic_gpio *pg = irq_data_get_irq_chip_data(data);
if (pg->update_type) {
unsigned int gpio = pg->update_type & ~GPIO_UPDATE_TYPE;
pmic_program_irqtype(gpio, pg->trigger_type);
pg->update_type = 0;
}
mutex_unlock(&pg->buslock);
}
/* the gpiointr register is read-clear, so just do nothing. */
static void pmic_irq_unmask(struct irq_data *data) { }
static void pmic_irq_mask(struct irq_data *data) { }
static struct irq_chip pmic_irqchip = {
.name = "PMIC-GPIO",
.irq_mask = pmic_irq_mask,
.irq_unmask = pmic_irq_unmask,
.irq_set_type = pmic_irq_type,
.name = "PMIC-GPIO",
.irq_mask = pmic_irq_mask,
.irq_unmask = pmic_irq_unmask,
.irq_set_type = pmic_irq_type,
.irq_bus_lock = pmic_irq_buslock,
.irq_bus_sync_unlock = pmic_bus_sync_unlock,
};
static irqreturn_t pmic_irq_handler(int irq, void *data)

17
drivers/platform/x86/samsung-laptop.c
View file

@ -570,6 +570,16 @@ static struct dmi_system_id __initdata samsung_dmi_table[] = {
},
.callback = dmi_check_cb,
},
{
.ident = "R410 Plus",
.matches = {
DMI_MATCH(DMI_SYS_VENDOR,
"SAMSUNG ELECTRONICS CO., LTD."),
DMI_MATCH(DMI_PRODUCT_NAME, "R410P"),
DMI_MATCH(DMI_BOARD_NAME, "R460"),
},
.callback = dmi_check_cb,
},
{
.ident = "R518",
.matches = {
@ -591,12 +601,12 @@ static struct dmi_system_id __initdata samsung_dmi_table[] = {
.callback = dmi_check_cb,
},
{
.ident = "N150/N210/N220",
.ident = "N150/N210/N220/N230",
.matches = {
DMI_MATCH(DMI_SYS_VENDOR,
"SAMSUNG ELECTRONICS CO., LTD."),
DMI_MATCH(DMI_PRODUCT_NAME, "N150/N210/N220"),
DMI_MATCH(DMI_BOARD_NAME, "N150/N210/N220"),
DMI_MATCH(DMI_PRODUCT_NAME, "N150/N210/N220/N230"),
DMI_MATCH(DMI_BOARD_NAME, "N150/N210/N220/N230"),
},
.callback = dmi_check_cb,
},
@ -771,6 +781,7 @@ static int __init samsung_init(void)
/* create a backlight device to talk to this one */
memset(&props, 0, sizeof(struct backlight_properties));
props.type = BACKLIGHT_PLATFORM;
props.max_brightness = sabi_config->max_brightness;
backlight_device = backlight_device_register("samsung", &sdev->dev,
NULL, &backlight_ops,

65
drivers/platform/x86/sony-laptop.c
View file

@ -138,6 +138,8 @@ MODULE_PARM_DESC(kbd_backlight_timeout,
"1 for 30 seconds, 2 for 60 seconds and 3 to disable timeout "
"(default: 0)");
static void sony_nc_kbd_backlight_resume(void);
enum sony_nc_rfkill {
SONY_WIFI,
SONY_BLUETOOTH,
@ -771,11 +773,6 @@ static int sony_nc_handles_setup(struct platform_device *pd)
if (!handles)
return -ENOMEM;
sysfs_attr_init(&handles->devattr.attr);
handles->devattr.attr.name = "handles";
handles->devattr.attr.mode = S_IRUGO;
handles->devattr.show = sony_nc_handles_show;
for (i = 0; i < ARRAY_SIZE(handles->cap); i++) {
if (!acpi_callsetfunc(sony_nc_acpi_handle,
"SN00", i + 0x20, &result)) {
@ -785,11 +782,18 @@ static int sony_nc_handles_setup(struct platform_device *pd)
}
}
/* allow reading capabilities via sysfs */
if (device_create_file(&pd->dev, &handles->devattr)) {
kfree(handles);
handles = NULL;
return -1;
if (debug) {
sysfs_attr_init(&handles->devattr.attr);
handles->devattr.attr.name = "handles";
handles->devattr.attr.mode = S_IRUGO;
handles->devattr.show = sony_nc_handles_show;
/* allow reading capabilities via sysfs */
if (device_create_file(&pd->dev, &handles->devattr)) {
kfree(handles);
handles = NULL;
return -1;
}
}
return 0;
@ -798,7 +802,8 @@ static int sony_nc_handles_setup(struct platform_device *pd)
static int sony_nc_handles_cleanup(struct platform_device *pd)
{
if (handles) {
device_remove_file(&pd->dev, &handles->devattr);
if (debug)
device_remove_file(&pd->dev, &handles->devattr);
kfree(handles);
handles = NULL;
}
@ -808,6 +813,11 @@ static int sony_nc_handles_cleanup(struct platform_device *pd)
static int sony_find_snc_handle(int handle)
{
int i;
/* not initialized yet, return early */
if (!handles)
return -1;
for (i = 0; i < 0x10; i++) {
if (handles->cap[i] == handle) {
dprintk("found handle 0x%.4x (offset: 0x%.2x)\n",
@ -1168,6 +1178,9 @@ static int sony_nc_resume(struct acpi_device *device)
/* re-read rfkill state */
sony_nc_rfkill_update();
/* restore kbd backlight states */
sony_nc_kbd_backlight_resume();
return 0;
}
@ -1355,6 +1368,7 @@ static void sony_nc_rfkill_setup(struct acpi_device *device)
#define KBDBL_HANDLER 0x137
#define KBDBL_PRESENT 0xB00
#define SET_MODE 0xC00
#define SET_STATE 0xD00
#define SET_TIMEOUT 0xE00
struct kbd_backlight {
@ -1377,6 +1391,10 @@ static ssize_t __sony_nc_kbd_backlight_mode_set(u8 value)
(value << 0x10) | SET_MODE, &result))
return -EIO;
/* Try to turn the light on/off immediately */
sony_call_snc_handle(KBDBL_HANDLER, (value << 0x10) | SET_STATE,
&result);
kbdbl_handle->mode = value;
return 0;
@ -1458,7 +1476,7 @@ static int sony_nc_kbd_backlight_setup(struct platform_device *pd)
{
int result;
if (sony_call_snc_handle(0x137, KBDBL_PRESENT, &result))
if (sony_call_snc_handle(KBDBL_HANDLER, KBDBL_PRESENT, &result))
return 0;
if (!(result & 0x02))
return 0;
@ -1501,13 +1519,36 @@ static int sony_nc_kbd_backlight_setup(struct platform_device *pd)
static int sony_nc_kbd_backlight_cleanup(struct platform_device *pd)
{
if (kbdbl_handle) {
int result;
device_remove_file(&pd->dev, &kbdbl_handle->mode_attr);
device_remove_file(&pd->dev, &kbdbl_handle->timeout_attr);
/* restore the default hw behaviour */
sony_call_snc_handle(KBDBL_HANDLER, 0x1000 | SET_MODE, &result);
sony_call_snc_handle(KBDBL_HANDLER, SET_TIMEOUT, &result);
kfree(kbdbl_handle);
}
return 0;
}
static void sony_nc_kbd_backlight_resume(void)
{
int ignore = 0;
if (!kbdbl_handle)
return;
if (kbdbl_handle->mode == 0)
sony_call_snc_handle(KBDBL_HANDLER, SET_MODE, &ignore);
if (kbdbl_handle->timeout != 0)
sony_call_snc_handle(KBDBL_HANDLER,
(kbdbl_handle->timeout << 0x10) | SET_TIMEOUT,
&ignore);
}
static void sony_nc_backlight_setup(void)
{
acpi_handle unused;

3
drivers/platform/x86/thinkpad_acpi.c
View file

@ -8618,8 +8618,7 @@ static bool __pure __init tpacpi_is_valid_fw_id(const char* const s,
tpacpi_is_fw_digit(s[1]) &&
s[2] == t && s[3] == 'T' &&
tpacpi_is_fw_digit(s[4]) &&
tpacpi_is_fw_digit(s[5]) &&
s[6] == 'W' && s[7] == 'W';
tpacpi_is_fw_digit(s[5]);
}
/* returns 0 - probe ok, or < 0 - probe error.

2
drivers/staging/Kconfig
View file

@ -131,8 +131,6 @@ source "drivers/staging/wlags49_h2/Kconfig"
source "drivers/staging/wlags49_h25/Kconfig"
source "drivers/staging/samsung-laptop/Kconfig"
source "drivers/staging/sm7xx/Kconfig"
source "drivers/staging/dt3155v4l/Kconfig"

1
drivers/staging/Makefile
View file

@ -48,7 +48,6 @@ obj-$(CONFIG_XVMALLOC) += zram/
obj-$(CONFIG_ZCACHE) += zcache/
obj-$(CONFIG_WLAGS49_H2) += wlags49_h2/
obj-$(CONFIG_WLAGS49_H25) += wlags49_h25/
obj-$(CONFIG_SAMSUNG_LAPTOP) += samsung-laptop/
obj-$(CONFIG_FB_SM7XX) += sm7xx/
obj-$(CONFIG_VIDEO_DT3155) += dt3155v4l/
obj-$(CONFIG_CRYSTALHD) += crystalhd/

10
drivers/staging/samsung-laptop/Kconfig
View file

@ -1,10 +0,0 @@
config SAMSUNG_LAPTOP
tristate "Samsung Laptop driver"
default n
depends on RFKILL && BACKLIGHT_CLASS_DEVICE && X86
help
This module implements a driver for the N128 Samsung Laptop
providing control over the Wireless LED and the LCD backlight
To compile this driver as a module, choose
M here: the module will be called samsung-laptop.

1
drivers/staging/samsung-laptop/Makefile
View file

@ -1 +0,0 @@
obj-$(CONFIG_SAMSUNG_LAPTOP) += samsung-laptop.o

5
drivers/staging/samsung-laptop/TODO
View file

@ -1,5 +0,0 @@
TODO:
- review from other developers
- figure out ACPI video issues
Please send patches to Greg Kroah-Hartman <gregkh@suse.de>

843
drivers/staging/samsung-laptop/samsung-laptop.c
View file

@ -1,843 +0,0 @@
/*
* Samsung Laptop driver
*
* Copyright (C) 2009,2011 Greg Kroah-Hartman (gregkh@suse.de)
* Copyright (C) 2009,2011 Novell Inc.
*
* This program is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License version 2 as published by
* the Free Software Foundation.
*
*/
#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
#include <linux/kernel.h>
#include <linux/init.h>
#include <linux/module.h>
#include <linux/delay.h>
#include <linux/pci.h>
#include <linux/backlight.h>
#include <linux/fb.h>
#include <linux/dmi.h>
#include <linux/platform_device.h>
#include <linux/rfkill.h>
/*
* This driver is needed because a number of Samsung laptops do not hook
* their control settings through ACPI. So we have to poke around in the
* BIOS to do things like brightness values, and "special" key controls.
*/
/*
* We have 0 - 8 as valid brightness levels. The specs say that level 0 should
* be reserved by the BIOS (which really doesn't make much sense), we tell
* userspace that the value is 0 - 7 and then just tell the hardware 1 - 8
*/
#define MAX_BRIGHT 0x07
#define SABI_IFACE_MAIN 0x00
#define SABI_IFACE_SUB 0x02
#define SABI_IFACE_COMPLETE 0x04
#define SABI_IFACE_DATA 0x05
/* Structure to get data back to the calling function */
struct sabi_retval {
u8 retval[20];
};
struct sabi_header_offsets {
u8 port;
u8 re_mem;
u8 iface_func;
u8 en_mem;
u8 data_offset;
u8 data_segment;
};
struct sabi_commands {
/*
* Brightness is 0 - 8, as described above.
* Value 0 is for the BIOS to use
*/
u8 get_brightness;
u8 set_brightness;
/*
* first byte:
* 0x00 - wireless is off
* 0x01 - wireless is on
* second byte:
* 0x02 - 3G is off
* 0x03 - 3G is on
* TODO, verify 3G is correct, that doesn't seem right...
*/
u8 get_wireless_button;
u8 set_wireless_button;
/* 0 is off, 1 is on */
u8 get_backlight;
u8 set_backlight;
/*
* 0x80 or 0x00 - no action
* 0x81 - recovery key pressed
*/
u8 get_recovery_mode;
u8 set_recovery_mode;
/*
* on seclinux: 0 is low, 1 is high,
* on swsmi: 0 is normal, 1 is silent, 2 is turbo
*/
u8 get_performance_level;
u8 set_performance_level;
/*
* Tell the BIOS that Linux is running on this machine.
* 81 is on, 80 is off
*/
u8 set_linux;
};
struct sabi_performance_level {
const char *name;
u8 value;
};
struct sabi_config {
const char *test_string;
u16 main_function;
const struct sabi_header_offsets header_offsets;
const struct sabi_commands commands;
const struct sabi_performance_level performance_levels[4];
u8 min_brightness;
u8 max_brightness;
};
static const struct sabi_config sabi_configs[] = {
{
.test_string = "SECLINUX",
.main_function = 0x4c49,
.header_offsets = {
.port = 0x00,
.re_mem = 0x02,
.iface_func = 0x03,
.en_mem = 0x04,
.data_offset = 0x05,
.data_segment = 0x07,
},
.commands = {
.get_brightness = 0x00,
.set_brightness = 0x01,
.get_wireless_button = 0x02,
.set_wireless_button = 0x03,
.get_backlight = 0x04,
.set_backlight = 0x05,
.get_recovery_mode = 0x06,
.set_recovery_mode = 0x07,
.get_performance_level = 0x08,
.set_performance_level = 0x09,
.set_linux = 0x0a,
},
.performance_levels = {
{
.name = "silent",
.value = 0,
},
{
.name = "normal",
.value = 1,
},
{ },
},
.min_brightness = 1,
.max_brightness = 8,
},
{
.test_string = "SwSmi@",
.main_function = 0x5843,
.header_offsets = {
.port = 0x00,
.re_mem = 0x04,
.iface_func = 0x02,
.en_mem = 0x03,
.data_offset = 0x05,
.data_segment = 0x07,
},
.commands = {
.get_brightness = 0x10,
.set_brightness = 0x11,
.get_wireless_button = 0x12,
.set_wireless_button = 0x13,
.get_backlight = 0x2d,
.set_backlight = 0x2e,
.get_recovery_mode = 0xff,
.set_recovery_mode = 0xff,
.get_performance_level = 0x31,
.set_performance_level = 0x32,
.set_linux = 0xff,
},
.performance_levels = {
{
.name = "normal",
.value = 0,
},
{
.name = "silent",
.value = 1,
},
{
.name = "overclock",
.value = 2,
},
{ },
},
.min_brightness = 0,
.max_brightness = 8,
},
{ },
};
static const struct sabi_config *sabi_config;
static void __iomem *sabi;
static void __iomem *sabi_iface;
static void __iomem *f0000_segment;
static struct backlight_device *backlight_device;
static struct mutex sabi_mutex;
static struct platform_device *sdev;
static struct rfkill *rfk;
static int force;
module_param(force, bool, 0);
MODULE_PARM_DESC(force,
"Disable the DMI check and forces the driver to be loaded");
static int debug;
module_param(debug, bool, S_IRUGO | S_IWUSR);
MODULE_PARM_DESC(debug, "Debug enabled or not");
static int sabi_get_command(u8 command, struct sabi_retval *sretval)
{
int retval = 0;
u16 port = readw(sabi + sabi_config->header_offsets.port);
u8 complete, iface_data;
mutex_lock(&sabi_mutex);
/* enable memory to be able to write to it */
outb(readb(sabi + sabi_config->header_offsets.en_mem), port);
/* write out the command */
writew(sabi_config->main_function, sabi_iface + SABI_IFACE_MAIN);
writew(command, sabi_iface + SABI_IFACE_SUB);
writeb(0, sabi_iface + SABI_IFACE_COMPLETE);
outb(readb(sabi + sabi_config->header_offsets.iface_func), port);
/* write protect memory to make it safe */
outb(readb(sabi + sabi_config->header_offsets.re_mem), port);
/* see if the command actually succeeded */
complete = readb(sabi_iface + SABI_IFACE_COMPLETE);
iface_data = readb(sabi_iface + SABI_IFACE_DATA);
if (complete != 0xaa || iface_data == 0xff) {
pr_warn("SABI get command 0x%02x failed with completion flag 0x%02x and data 0x%02x\n",
command, complete, iface_data);
retval = -EINVAL;
goto exit;
}
/*
* Save off the data into a structure so the caller use it.
* Right now we only want the first 4 bytes,
* There are commands that need more, but not for the ones we
* currently care about.
*/
sretval->retval[0] = readb(sabi_iface + SABI_IFACE_DATA);
sretval->retval[1] = readb(sabi_iface + SABI_IFACE_DATA + 1);
sretval->retval[2] = readb(sabi_iface + SABI_IFACE_DATA + 2);
sretval->retval[3] = readb(sabi_iface + SABI_IFACE_DATA + 3);
exit:
mutex_unlock(&sabi_mutex);
return retval;
}
static int sabi_set_command(u8 command, u8 data)
{
int retval = 0;
u16 port = readw(sabi + sabi_config->header_offsets.port);
u8 complete, iface_data;
mutex_lock(&sabi_mutex);
/* enable memory to be able to write to it */
outb(readb(sabi + sabi_config->header_offsets.en_mem), port);
/* write out the command */
writew(sabi_config->main_function, sabi_iface + SABI_IFACE_MAIN);
writew(command, sabi_iface + SABI_IFACE_SUB);
writeb(0, sabi_iface + SABI_IFACE_COMPLETE);
writeb(data, sabi_iface + SABI_IFACE_DATA);
outb(readb(sabi + sabi_config->header_offsets.iface_func), port);
/* write protect memory to make it safe */
outb(readb(sabi + sabi_config->header_offsets.re_mem), port);
/* see if the command actually succeeded */
complete = readb(sabi_iface + SABI_IFACE_COMPLETE);
iface_data = readb(sabi_iface + SABI_IFACE_DATA);
if (complete != 0xaa || iface_data == 0xff) {
pr_warn("SABI set command 0x%02x failed with completion flag 0x%02x and data 0x%02x\n",
command, complete, iface_data);
retval = -EINVAL;
}
mutex_unlock(&sabi_mutex);
return retval;
}
static void test_backlight(void)
{
struct sabi_retval sretval;
sabi_get_command(sabi_config->commands.get_backlight, &sretval);
printk(KERN_DEBUG "backlight = 0x%02x\n", sretval.retval[0]);
sabi_set_command(sabi_config->commands.set_backlight, 0);
printk(KERN_DEBUG "backlight should be off\n");
sabi_get_command(sabi_config->commands.get_backlight, &sretval);
printk(KERN_DEBUG "backlight = 0x%02x\n", sretval.retval[0]);
msleep(1000);
sabi_set_command(sabi_config->commands.set_backlight, 1);
printk(KERN_DEBUG "backlight should be on\n");
sabi_get_command(sabi_config->commands.get_backlight, &sretval);
printk(KERN_DEBUG "backlight = 0x%02x\n", sretval.retval[0]);
}
static void test_wireless(void)
{
struct sabi_retval sretval;
sabi_get_command(sabi_config->commands.get_wireless_button, &sretval);
printk(KERN_DEBUG "wireless led = 0x%02x\n", sretval.retval[0]);
sabi_set_command(sabi_config->commands.set_wireless_button, 0);
printk(KERN_DEBUG "wireless led should be off\n");
sabi_get_command(sabi_config->commands.get_wireless_button, &sretval);
printk(KERN_DEBUG "wireless led = 0x%02x\n", sretval.retval[0]);
msleep(1000);
sabi_set_command(sabi_config->commands.set_wireless_button, 1);
printk(KERN_DEBUG "wireless led should be on\n");
sabi_get_command(sabi_config->commands.get_wireless_button, &sretval);
printk(KERN_DEBUG "wireless led = 0x%02x\n", sretval.retval[0]);
}
static u8 read_brightness(void)
{
struct sabi_retval sretval;
int user_brightness = 0;
int retval;
retval = sabi_get_command(sabi_config->commands.get_brightness,
&sretval);
if (!retval) {
user_brightness = sretval.retval[0];
if (user_brightness != 0)
user_brightness -= sabi_config->min_brightness;
}
return user_brightness;
}
static void set_brightness(u8 user_brightness)
{
u8 user_level = user_brightness - sabi_config->min_brightness;
sabi_set_command(sabi_config->commands.set_brightness, user_level);
}
static int get_brightness(struct backlight_device *bd)
{
return (int)read_brightness();
}
static int update_status(struct backlight_device *bd)
{
set_brightness(bd->props.brightness);
if (bd->props.power == FB_BLANK_UNBLANK)
sabi_set_command(sabi_config->commands.set_backlight, 1);
else
sabi_set_command(sabi_config->commands.set_backlight, 0);
return 0;
}
static const struct backlight_ops backlight_ops = {
.get_brightness = get_brightness,
.update_status = update_status,
};
static int rfkill_set(void *data, bool blocked)
{
/* Do something with blocked...*/
/*
* blocked == false is on
* blocked == true is off
*/
if (blocked)
sabi_set_command(sabi_config->commands.set_wireless_button, 0);
else
sabi_set_command(sabi_config->commands.set_wireless_button, 1);
return 0;
}
static struct rfkill_ops rfkill_ops = {
.set_block = rfkill_set,
};
static int init_wireless(struct platform_device *sdev)
{
int retval;
rfk = rfkill_alloc("samsung-wifi", &sdev->dev, RFKILL_TYPE_WLAN,
&rfkill_ops, NULL);
if (!rfk)
return -ENOMEM;
retval = rfkill_register(rfk);
if (retval) {
rfkill_destroy(rfk);
return -ENODEV;
}
return 0;
}
static void destroy_wireless(void)
{
rfkill_unregister(rfk);
rfkill_destroy(rfk);
}
static ssize_t get_performance_level(struct device *dev,
struct device_attribute *attr, char *buf)
{
struct sabi_retval sretval;
int retval;
int i;
/* Read the state */
retval = sabi_get_command(sabi_config->commands.get_performance_level,
&sretval);
if (retval)
return retval;
/* The logic is backwards, yeah, lots of fun... */
for (i = 0; sabi_config->performance_levels[i].name; ++i) {
if (sretval.retval[0] == sabi_config->performance_levels[i].value)
return sprintf(buf, "%s\n", sabi_config->performance_levels[i].name);
}
return sprintf(buf, "%s\n", "unknown");
}
static ssize_t set_performance_level(struct device *dev,
struct device_attribute *attr, const char *buf,
size_t count)
{
if (count >= 1) {
int i;
for (i = 0; sabi_config->performance_levels[i].name; ++i) {
const struct sabi_performance_level *level =
&sabi_config->performance_levels[i];
if (!strncasecmp(level->name, buf, strlen(level->name))) {
sabi_set_command(sabi_config->commands.set_performance_level,
level->value);
break;
}
}
if (!sabi_config->performance_levels[i].name)
return -EINVAL;
}
return count;
}
static DEVICE_ATTR(performance_level, S_IWUSR | S_IRUGO,
get_performance_level, set_performance_level);
static int __init dmi_check_cb(const struct dmi_system_id *id)
{
pr_info("found laptop model '%s'\n",
id->ident);
return 0;
}
static struct dmi_system_id __initdata samsung_dmi_table[] = {
{
.ident = "N128",
.matches = {
DMI_MATCH(DMI_SYS_VENDOR,
"SAMSUNG ELECTRONICS CO., LTD."),
DMI_MATCH(DMI_PRODUCT_NAME, "N128"),
DMI_MATCH(DMI_BOARD_NAME, "N128"),
},
.callback = dmi_check_cb,
},
{
.ident = "N130",
.matches = {
DMI_MATCH(DMI_SYS_VENDOR,
"SAMSUNG ELECTRONICS CO., LTD."),
DMI_MATCH(DMI_PRODUCT_NAME, "N130"),
DMI_MATCH(DMI_BOARD_NAME, "N130"),
},
.callback = dmi_check_cb,
},
{
.ident = "X125",
.matches = {
DMI_MATCH(DMI_SYS_VENDOR,
"SAMSUNG ELECTRONICS CO., LTD."),
DMI_MATCH(DMI_PRODUCT_NAME, "X125"),
DMI_MATCH(DMI_BOARD_NAME, "X125"),
},
.callback = dmi_check_cb,
},
{
.ident = "X120/X170",
.matches = {
DMI_MATCH(DMI_SYS_VENDOR,
"SAMSUNG ELECTRONICS CO., LTD."),
DMI_MATCH(DMI_PRODUCT_NAME, "X120/X170"),
DMI_MATCH(DMI_BOARD_NAME, "X120/X170"),
},
.callback = dmi_check_cb,
},
{
.ident = "NC10",
.matches = {
DMI_MATCH(DMI_SYS_VENDOR,
"SAMSUNG ELECTRONICS CO., LTD."),
DMI_MATCH(DMI_PRODUCT_NAME, "NC10"),
DMI_MATCH(DMI_BOARD_NAME, "NC10"),
},
.callback = dmi_check_cb,
},
{
.ident = "NP-Q45",
.matches = {
DMI_MATCH(DMI_SYS_VENDOR,
"SAMSUNG ELECTRONICS CO., LTD."),
DMI_MATCH(DMI_PRODUCT_NAME, "SQ45S70S"),
DMI_MATCH(DMI_BOARD_NAME, "SQ45S70S"),
},
.callback = dmi_check_cb,
},
{
.ident = "X360",
.matches = {
DMI_MATCH(DMI_SYS_VENDOR,
"SAMSUNG ELECTRONICS CO., LTD."),
DMI_MATCH(DMI_PRODUCT_NAME, "X360"),
DMI_MATCH(DMI_BOARD_NAME, "X360"),
},
.callback = dmi_check_cb,
},
{
.ident = "R410 Plus",
.matches = {
DMI_MATCH(DMI_SYS_VENDOR,
"SAMSUNG ELECTRONICS CO., LTD."),
DMI_MATCH(DMI_PRODUCT_NAME, "R410P"),
DMI_MATCH(DMI_BOARD_NAME, "R460"),
},
.callback = dmi_check_cb,
},
{
.ident = "R518",
.matches = {
DMI_MATCH(DMI_SYS_VENDOR,
"SAMSUNG ELECTRONICS CO., LTD."),
DMI_MATCH(DMI_PRODUCT_NAME, "R518"),
DMI_MATCH(DMI_BOARD_NAME, "R518"),
},
.callback = dmi_check_cb,
},
{
.ident = "R519/R719",
.matches = {
DMI_MATCH(DMI_SYS_VENDOR,
"SAMSUNG ELECTRONICS CO., LTD."),
DMI_MATCH(DMI_PRODUCT_NAME, "R519/R719"),
DMI_MATCH(DMI_BOARD_NAME, "R519/R719"),
},
.callback = dmi_check_cb,
},
{
.ident = "N150/N210/N220/N230",
.matches = {
DMI_MATCH(DMI_SYS_VENDOR,
"SAMSUNG ELECTRONICS CO., LTD."),
DMI_MATCH(DMI_PRODUCT_NAME, "N150/N210/N220/N230"),
DMI_MATCH(DMI_BOARD_NAME, "N150/N210/N220/N230"),
},
.callback = dmi_check_cb,
},
{
.ident = "N150P/N210P/N220P",
.matches = {
DMI_MATCH(DMI_SYS_VENDOR,
"SAMSUNG ELECTRONICS CO., LTD."),
DMI_MATCH(DMI_PRODUCT_NAME, "N150P/N210P/N220P"),
DMI_MATCH(DMI_BOARD_NAME, "N150P/N210P/N220P"),
},
.callback = dmi_check_cb,
},
{
.ident = "R530/R730",
.matches = {
DMI_MATCH(DMI_SYS_VENDOR, "SAMSUNG ELECTRONICS CO., LTD."),
DMI_MATCH(DMI_PRODUCT_NAME, "R530/R730"),
DMI_MATCH(DMI_BOARD_NAME, "R530/R730"),
},
.callback = dmi_check_cb,
},
{
.ident = "NF110/NF210/NF310",
.matches = {
DMI_MATCH(DMI_SYS_VENDOR, "SAMSUNG ELECTRONICS CO., LTD."),
DMI_MATCH(DMI_PRODUCT_NAME, "NF110/NF210/NF310"),
DMI_MATCH(DMI_BOARD_NAME, "NF110/NF210/NF310"),
},
.callback = dmi_check_cb,
},
{
.ident = "N145P/N250P/N260P",
.matches = {
DMI_MATCH(DMI_SYS_VENDOR, "SAMSUNG ELECTRONICS CO., LTD."),
DMI_MATCH(DMI_PRODUCT_NAME, "N145P/N250P/N260P"),
DMI_MATCH(DMI_BOARD_NAME, "N145P/N250P/N260P"),
},
.callback = dmi_check_cb,
},
{
.ident = "R70/R71",
.matches = {
DMI_MATCH(DMI_SYS_VENDOR,
"SAMSUNG ELECTRONICS CO., LTD."),
DMI_MATCH(DMI_PRODUCT_NAME, "R70/R71"),
DMI_MATCH(DMI_BOARD_NAME, "R70/R71"),
},
.callback = dmi_check_cb,
},
{
.ident = "P460",
.matches = {
DMI_MATCH(DMI_SYS_VENDOR, "SAMSUNG ELECTRONICS CO., LTD."),
DMI_MATCH(DMI_PRODUCT_NAME, "P460"),
DMI_MATCH(DMI_BOARD_NAME, "P460"),
},
.callback = dmi_check_cb,
},
{ },
};
MODULE_DEVICE_TABLE(dmi, samsung_dmi_table);
static int find_signature(void __iomem *memcheck, const char *testStr)
{
int i = 0;
int loca;
for (loca = 0; loca < 0xffff; loca++) {
char temp = readb(memcheck + loca);
if (temp == testStr[i]) {
if (i == strlen(testStr)-1)
break;
++i;
} else {
i = 0;
}
}
return loca;
}
static int __init samsung_init(void)
{
struct backlight_properties props;
struct sabi_retval sretval;
unsigned int ifaceP;
int i;
int loca;
int retval;
mutex_init(&sabi_mutex);
if (!force && !dmi_check_system(samsung_dmi_table))
return -ENODEV;
f0000_segment = ioremap_nocache(0xf0000, 0xffff);
if (!f0000_segment) {
pr_err("Can't map the segment at 0xf0000\n");
return -EINVAL;
}
/* Try to find one of the signatures in memory to find the header */
for (i = 0; sabi_configs[i].test_string != 0; ++i) {
sabi_config = &sabi_configs[i];
loca = find_signature(f0000_segment, sabi_config->test_string);
if (loca != 0xffff)
break;
}
if (loca == 0xffff) {
pr_err("This computer does not support SABI\n");
goto error_no_signature;
}
/* point to the SMI port Number */
loca += 1;
sabi = (f0000_segment + loca);
if (debug) {
printk(KERN_DEBUG "This computer supports SABI==%x\n",
loca + 0xf0000 - 6);
printk(KERN_DEBUG "SABI header:\n");
printk(KERN_DEBUG " SMI Port Number = 0x%04x\n",
readw(sabi + sabi_config->header_offsets.port));
printk(KERN_DEBUG " SMI Interface Function = 0x%02x\n",
readb(sabi + sabi_config->header_offsets.iface_func));
printk(KERN_DEBUG " SMI enable memory buffer = 0x%02x\n",
readb(sabi + sabi_config->header_offsets.en_mem));
printk(KERN_DEBUG " SMI restore memory buffer = 0x%02x\n",
readb(sabi + sabi_config->header_offsets.re_mem));
printk(KERN_DEBUG " SABI data offset = 0x%04x\n",
readw(sabi + sabi_config->header_offsets.data_offset));
printk(KERN_DEBUG " SABI data segment = 0x%04x\n",
readw(sabi + sabi_config->header_offsets.data_segment));
}
/* Get a pointer to the SABI Interface */
ifaceP = (readw(sabi + sabi_config->header_offsets.data_segment) & 0x0ffff) << 4;
ifaceP += readw(sabi + sabi_config->header_offsets.data_offset) & 0x0ffff;
sabi_iface = ioremap_nocache(ifaceP, 16);
if (!sabi_iface) {
pr_err("Can't remap %x\n", ifaceP);
goto exit;
}
if (debug) {
printk(KERN_DEBUG "ifaceP = 0x%08x\n", ifaceP);
printk(KERN_DEBUG "sabi_iface = %p\n", sabi_iface);
test_backlight();
test_wireless();
retval = sabi_get_command(sabi_config->commands.get_brightness,
&sretval);
printk(KERN_DEBUG "brightness = 0x%02x\n", sretval.retval[0]);
}
/* Turn on "Linux" mode in the BIOS */
if (sabi_config->commands.set_linux != 0xff) {
retval = sabi_set_command(sabi_config->commands.set_linux,
0x81);
if (retval) {
pr_warn("Linux mode was not set!\n");
goto error_no_platform;
}
}
/* knock up a platform device to hang stuff off of */
sdev = platform_device_register_simple("samsung", -1, NULL, 0);
if (IS_ERR(sdev))
goto error_no_platform;
/* create a backlight device to talk to this one */
memset(&props, 0, sizeof(struct backlight_properties));
props.type = BACKLIGHT_PLATFORM;
props.max_brightness = sabi_config->max_brightness;
backlight_device = backlight_device_register("samsung", &sdev->dev,
NULL, &backlight_ops,
&props);
if (IS_ERR(backlight_device))
goto error_no_backlight;
backlight_device->props.brightness = read_brightness();
backlight_device->props.power = FB_BLANK_UNBLANK;
backlight_update_status(backlight_device);
retval = init_wireless(sdev);
if (retval)
goto error_no_rfk;
retval = device_create_file(&sdev->dev, &dev_attr_performance_level);
if (retval)
goto error_file_create;
exit:
return 0;
error_file_create:
destroy_wireless();
error_no_rfk:
backlight_device_unregister(backlight_device);
error_no_backlight:
platform_device_unregister(sdev);
error_no_platform:
iounmap(sabi_iface);
error_no_signature:
iounmap(f0000_segment);
return -EINVAL;
}
static void __exit samsung_exit(void)
{
/* Turn off "Linux" mode in the BIOS */
if (sabi_config->commands.set_linux != 0xff)
sabi_set_command(sabi_config->commands.set_linux, 0x80);
device_remove_file(&sdev->dev, &dev_attr_performance_level);
backlight_device_unregister(backlight_device);
destroy_wireless();
iounmap(sabi_iface);
iounmap(f0000_segment);
platform_device_unregister(sdev);
}
module_init(samsung_init);
module_exit(samsung_exit);
MODULE_AUTHOR("Greg Kroah-Hartman <gregkh@suse.de>");
MODULE_DESCRIPTION("Samsung Backlight driver");
MODULE_LICENSE("GPL");