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authorIngo Molnar <mingo@elte.hu>2008-12-12 11:53:43 +0100
committerIngo Molnar <mingo@elte.hu>2008-12-12 11:53:43 +0100
commite18d7af85296cb6999aae171e8a9f8612bea5ae0 (patch)
tree97a675ecc17bef2f710c50f5ea2a480df0e362c0 /drivers/misc
parent3555105333ae55414d0fe051557bd7dc590f5255 (diff)
parent8b1fae4e4200388b64dd88065639413cb3f1051c (diff)
Merge commit 'v2.6.28-rc8' into x86/mm
Diffstat (limited to 'drivers/misc')
-rw-r--r--drivers/misc/Kconfig28
-rw-r--r--drivers/misc/Makefile3
-rw-r--r--drivers/misc/acer-wmi.c231
-rw-r--r--drivers/misc/asus-laptop.c27
-rw-r--r--drivers/misc/c2port/Kconfig35
-rw-r--r--drivers/misc/c2port/Makefile3
-rw-r--r--drivers/misc/c2port/c2port-duramar2150.c158
-rw-r--r--drivers/misc/c2port/core.c1003
-rw-r--r--drivers/misc/compal-laptop.c12
-rw-r--r--drivers/misc/eeepc-laptop.c244
-rw-r--r--drivers/misc/fujitsu-laptop.c178
-rw-r--r--drivers/misc/hdpuftrs/hdpu_nexus.c1
-rw-r--r--drivers/misc/ics932s401.c515
-rw-r--r--drivers/misc/intel_menlow.c41
-rw-r--r--drivers/misc/msi-laptop.c16
-rw-r--r--drivers/misc/panasonic-laptop.c766
-rw-r--r--drivers/misc/sgi-gru/Makefile4
-rw-r--r--drivers/misc/sgi-gru/grufault.c4
-rw-r--r--drivers/misc/sgi-gru/grufile.c2
-rw-r--r--drivers/misc/sgi-xp/Makefile4
-rw-r--r--drivers/misc/sgi-xp/xp.h4
-rw-r--r--drivers/misc/sgi-xp/xpc_main.c4
-rw-r--r--drivers/misc/sony-laptop.c15
-rw-r--r--drivers/misc/thinkpad_acpi.c131
24 files changed, 3183 insertions, 246 deletions
diff --git a/drivers/misc/Kconfig b/drivers/misc/Kconfig
index efd3aa08b88..fee7304102a 100644
--- a/drivers/misc/Kconfig
+++ b/drivers/misc/Kconfig
@@ -145,6 +145,7 @@ config ACER_WMI
depends on NEW_LEDS
depends on BACKLIGHT_CLASS_DEVICE
depends on SERIO_I8042
+ depends on RFKILL
select ACPI_WMI
---help---
This is a driver for newer Acer (and Wistron) laptops. It adds
@@ -226,10 +227,20 @@ config HP_WMI
To compile this driver as a module, choose M here: the module will
be called hp-wmi.
+config ICS932S401
+ tristate "Integrated Circuits ICS932S401"
+ depends on I2C && EXPERIMENTAL
+ help
+ If you say yes here you get support for the Integrated Circuits
+ ICS932S401 clock control chips.
+
+ This driver can also be built as a module. If so, the module
+ will be called ics932s401.
+
config MSI_LAPTOP
tristate "MSI Laptop Extras"
depends on X86
- depends on ACPI_EC
+ depends on ACPI
depends on BACKLIGHT_CLASS_DEVICE
---help---
This is a driver for laptops built by MSI (MICRO-STAR
@@ -245,10 +256,21 @@ config MSI_LAPTOP
If you have an MSI S270 laptop, say Y or M here.
+config PANASONIC_LAPTOP
+ tristate "Panasonic Laptop Extras"
+ depends on X86 && INPUT && ACPI
+ depends on BACKLIGHT_CLASS_DEVICE
+ ---help---
+ This driver adds support for access to backlight control and hotkeys
+ on Panasonic Let's Note laptops.
+
+ If you have a Panasonic Let's note laptop (such as the R1(N variant),
+ R2, R3, R5, T2, W2 and Y2 series), say Y.
+
config COMPAL_LAPTOP
tristate "Compal Laptop Extras"
depends on X86
- depends on ACPI_EC
+ depends on ACPI
depends on BACKLIGHT_CLASS_DEVICE
---help---
This is a driver for laptops built by Compal:
@@ -476,4 +498,6 @@ config SGI_GRU_DEBUG
This option enables addition debugging code for the SGI GRU driver. If
you are unsure, say N.
+source "drivers/misc/c2port/Kconfig"
+
endif # MISC_DEVICES
diff --git a/drivers/misc/Makefile b/drivers/misc/Makefile
index c6c13f60b45..817f7f5ab3b 100644
--- a/drivers/misc/Makefile
+++ b/drivers/misc/Makefile
@@ -14,6 +14,7 @@ obj-$(CONFIG_ATMEL_PWM) += atmel_pwm.o
obj-$(CONFIG_ATMEL_SSC) += atmel-ssc.o
obj-$(CONFIG_ATMEL_TCLIB) += atmel_tclib.o
obj-$(CONFIG_HP_WMI) += hp-wmi.o
+obj-$(CONFIG_ICS932S401) += ics932s401.o
obj-$(CONFIG_TC1100_WMI) += tc1100-wmi.o
obj-$(CONFIG_LKDTM) += lkdtm.o
obj-$(CONFIG_TIFM_CORE) += tifm_core.o
@@ -23,6 +24,7 @@ obj-$(CONFIG_SGI_IOC4) += ioc4.o
obj-$(CONFIG_SONY_LAPTOP) += sony-laptop.o
obj-$(CONFIG_THINKPAD_ACPI) += thinkpad_acpi.o
obj-$(CONFIG_FUJITSU_LAPTOP) += fujitsu-laptop.o
+obj-$(CONFIG_PANASONIC_LAPTOP) += panasonic-laptop.o
obj-$(CONFIG_EEPROM_93CX6) += eeprom_93cx6.o
obj-$(CONFIG_INTEL_MENLOW) += intel_menlow.o
obj-$(CONFIG_ENCLOSURE_SERVICES) += enclosure.o
@@ -30,3 +32,4 @@ obj-$(CONFIG_KGDB_TESTS) += kgdbts.o
obj-$(CONFIG_SGI_XP) += sgi-xp/
obj-$(CONFIG_SGI_GRU) += sgi-gru/
obj-$(CONFIG_HP_ILO) += hpilo.o
+obj-$(CONFIG_C2PORT) += c2port/
diff --git a/drivers/misc/acer-wmi.c b/drivers/misc/acer-wmi.c
index d8b0d326e45..94c9f911824 100644
--- a/drivers/misc/acer-wmi.c
+++ b/drivers/misc/acer-wmi.c
@@ -33,6 +33,8 @@
#include <linux/platform_device.h>
#include <linux/acpi.h>
#include <linux/i8042.h>
+#include <linux/rfkill.h>
+#include <linux/workqueue.h>
#include <linux/debugfs.h>
#include <acpi/acpi_drivers.h>
@@ -123,21 +125,15 @@ enum interface_flags {
static int max_brightness = 0xF;
-static int wireless = -1;
-static int bluetooth = -1;
static int mailled = -1;
static int brightness = -1;
static int threeg = -1;
static int force_series;
module_param(mailled, int, 0444);
-module_param(wireless, int, 0444);
-module_param(bluetooth, int, 0444);
module_param(brightness, int, 0444);
module_param(threeg, int, 0444);
module_param(force_series, int, 0444);
-MODULE_PARM_DESC(wireless, "Set initial state of Wireless hardware");
-MODULE_PARM_DESC(bluetooth, "Set initial state of Bluetooth hardware");
MODULE_PARM_DESC(mailled, "Set initial state of Mail LED");
MODULE_PARM_DESC(brightness, "Set initial LCD backlight brightness");
MODULE_PARM_DESC(threeg, "Set initial state of 3G hardware");
@@ -145,8 +141,6 @@ MODULE_PARM_DESC(force_series, "Force a different laptop series");
struct acer_data {
int mailled;
- int wireless;
- int bluetooth;
int threeg;
int brightness;
};
@@ -157,6 +151,9 @@ struct acer_debug {
u32 wmid_devices;
};
+static struct rfkill *wireless_rfkill;
+static struct rfkill *bluetooth_rfkill;
+
/* Each low-level interface must define at least some of the following */
struct wmi_interface {
/* The WMI device type */
@@ -476,7 +473,7 @@ struct wmi_interface *iface)
}
break;
default:
- return AE_BAD_ADDRESS;
+ return AE_ERROR;
}
return AE_OK;
}
@@ -514,7 +511,7 @@ static acpi_status AMW0_set_u32(u32 value, u32 cap, struct wmi_interface *iface)
break;
}
default:
- return AE_BAD_ADDRESS;
+ return AE_ERROR;
}
/* Actually do the set */
@@ -689,7 +686,7 @@ struct wmi_interface *iface)
return 0;
}
default:
- return AE_BAD_ADDRESS;
+ return AE_ERROR;
}
status = WMI_execute_u32(method_id, 0, &result);
@@ -735,7 +732,7 @@ static acpi_status WMID_set_u32(u32 value, u32 cap, struct wmi_interface *iface)
}
break;
default:
- return AE_BAD_ADDRESS;
+ return AE_ERROR;
}
return WMI_execute_u32(method_id, (u32)value, NULL);
}
@@ -785,7 +782,7 @@ static struct wmi_interface wmid_interface = {
static acpi_status get_u32(u32 *value, u32 cap)
{
- acpi_status status = AE_BAD_ADDRESS;
+ acpi_status status = AE_ERROR;
switch (interface->type) {
case ACER_AMW0:
@@ -846,8 +843,6 @@ static void __init acer_commandline_init(void)
* capability isn't available on the given interface
*/
set_u32(mailled, ACER_CAP_MAILLED);
- set_u32(wireless, ACER_CAP_WIRELESS);
- set_u32(bluetooth, ACER_CAP_BLUETOOTH);
set_u32(threeg, ACER_CAP_THREEG);
set_u32(brightness, ACER_CAP_BRIGHTNESS);
}
@@ -933,40 +928,135 @@ static void acer_backlight_exit(void)
}
/*
- * Read/ write bool sysfs macro
+ * Rfkill devices
*/
-#define show_set_bool(value, cap) \
-static ssize_t \
-show_bool_##value(struct device *dev, struct device_attribute *attr, \
- char *buf) \
-{ \
- u32 result; \
- acpi_status status = get_u32(&result, cap); \
- if (ACPI_SUCCESS(status)) \
- return sprintf(buf, "%u\n", result); \
- return sprintf(buf, "Read error\n"); \
-} \
-\
-static ssize_t \
-set_bool_##value(struct device *dev, struct device_attribute *attr, \
- const char *buf, size_t count) \
-{ \
- u32 tmp = simple_strtoul(buf, NULL, 10); \
- acpi_status status = set_u32(tmp, cap); \
- if (ACPI_FAILURE(status)) \
- return -EINVAL; \
- return count; \
-} \
-static DEVICE_ATTR(value, S_IWUGO | S_IRUGO | S_IWUSR, \
- show_bool_##value, set_bool_##value);
-
-show_set_bool(wireless, ACER_CAP_WIRELESS);
-show_set_bool(bluetooth, ACER_CAP_BLUETOOTH);
-show_set_bool(threeg, ACER_CAP_THREEG);
+static void acer_rfkill_update(struct work_struct *ignored);
+static DECLARE_DELAYED_WORK(acer_rfkill_work, acer_rfkill_update);
+static void acer_rfkill_update(struct work_struct *ignored)
+{
+ u32 state;
+ acpi_status status;
+
+ status = get_u32(&state, ACER_CAP_WIRELESS);
+ if (ACPI_SUCCESS(status))
+ rfkill_force_state(wireless_rfkill, state ?
+ RFKILL_STATE_UNBLOCKED : RFKILL_STATE_SOFT_BLOCKED);
+
+ if (has_cap(ACER_CAP_BLUETOOTH)) {
+ status = get_u32(&state, ACER_CAP_BLUETOOTH);
+ if (ACPI_SUCCESS(status))
+ rfkill_force_state(bluetooth_rfkill, state ?
+ RFKILL_STATE_UNBLOCKED :
+ RFKILL_STATE_SOFT_BLOCKED);
+ }
+
+ schedule_delayed_work(&acer_rfkill_work, round_jiffies_relative(HZ));
+}
+
+static int acer_rfkill_set(void *data, enum rfkill_state state)
+{
+ acpi_status status;
+ u32 *cap = data;
+ status = set_u32((u32) (state == RFKILL_STATE_UNBLOCKED), *cap);
+ if (ACPI_FAILURE(status))
+ return -ENODEV;
+ return 0;
+}
+
+static struct rfkill * acer_rfkill_register(struct device *dev,
+enum rfkill_type type, char *name, u32 cap)
+{
+ int err;
+ u32 state;
+ u32 *data;
+ struct rfkill *rfkill_dev;
+
+ rfkill_dev = rfkill_allocate(dev, type);
+ if (!rfkill_dev)
+ return ERR_PTR(-ENOMEM);
+ rfkill_dev->name = name;
+ get_u32(&state, cap);
+ rfkill_dev->state = state ? RFKILL_STATE_UNBLOCKED :
+ RFKILL_STATE_SOFT_BLOCKED;
+ data = kzalloc(sizeof(u32), GFP_KERNEL);
+ if (!data) {
+ rfkill_free(rfkill_dev);
+ return ERR_PTR(-ENOMEM);
+ }
+ *data = cap;
+ rfkill_dev->data = data;
+ rfkill_dev->toggle_radio = acer_rfkill_set;
+ rfkill_dev->user_claim_unsupported = 1;
+
+ err = rfkill_register(rfkill_dev);
+ if (err) {
+ kfree(rfkill_dev->data);
+ rfkill_free(rfkill_dev);
+ return ERR_PTR(err);
+ }
+ return rfkill_dev;
+}
+
+static int acer_rfkill_init(struct device *dev)
+{
+ wireless_rfkill = acer_rfkill_register(dev, RFKILL_TYPE_WLAN,
+ "acer-wireless", ACER_CAP_WIRELESS);
+ if (IS_ERR(wireless_rfkill))
+ return PTR_ERR(wireless_rfkill);
+
+ if (has_cap(ACER_CAP_BLUETOOTH)) {
+ bluetooth_rfkill = acer_rfkill_register(dev,
+ RFKILL_TYPE_BLUETOOTH, "acer-bluetooth",
+ ACER_CAP_BLUETOOTH);
+ if (IS_ERR(bluetooth_rfkill)) {
+ kfree(wireless_rfkill->data);
+ rfkill_unregister(wireless_rfkill);
+ return PTR_ERR(bluetooth_rfkill);
+ }
+ }
+
+ schedule_delayed_work(&acer_rfkill_work, round_jiffies_relative(HZ));
+
+ return 0;
+}
+
+static void acer_rfkill_exit(void)
+{
+ cancel_delayed_work_sync(&acer_rfkill_work);
+ kfree(wireless_rfkill->data);
+ rfkill_unregister(wireless_rfkill);
+ if (has_cap(ACER_CAP_BLUETOOTH)) {
+ kfree(wireless_rfkill->data);
+ rfkill_unregister(bluetooth_rfkill);
+ }
+ return;
+}
/*
- * Read interface sysfs macro
+ * sysfs interface
*/
+static ssize_t show_bool_threeg(struct device *dev,
+ struct device_attribute *attr, char *buf)
+{
+ u32 result; \
+ acpi_status status = get_u32(&result, ACER_CAP_THREEG);
+ if (ACPI_SUCCESS(status))
+ return sprintf(buf, "%u\n", result);
+ return sprintf(buf, "Read error\n");
+}
+
+static ssize_t set_bool_threeg(struct device *dev,
+ struct device_attribute *attr, const char *buf, size_t count)
+{
+ u32 tmp = simple_strtoul(buf, NULL, 10);
+ acpi_status status = set_u32(tmp, ACER_CAP_THREEG);
+ if (ACPI_FAILURE(status))
+ return -EINVAL;
+ return count;
+}
+static DEVICE_ATTR(threeg, S_IWUGO | S_IRUGO | S_IWUSR, show_bool_threeg,
+ set_bool_threeg);
+
static ssize_t show_interface(struct device *dev, struct device_attribute *attr,
char *buf)
{
@@ -1026,7 +1116,9 @@ static int __devinit acer_platform_probe(struct platform_device *device)
goto error_brightness;
}
- return 0;
+ err = acer_rfkill_init(&device->dev);
+
+ return err;
error_brightness:
acer_led_exit();
@@ -1040,6 +1132,8 @@ static int acer_platform_remove(struct platform_device *device)
acer_led_exit();
if (has_cap(ACER_CAP_BRIGHTNESS))
acer_backlight_exit();
+
+ acer_rfkill_exit();
return 0;
}
@@ -1052,16 +1146,6 @@ pm_message_t state)
if (!data)
return -ENOMEM;
- if (has_cap(ACER_CAP_WIRELESS)) {
- get_u32(&value, ACER_CAP_WIRELESS);
- data->wireless = value;
- }
-
- if (has_cap(ACER_CAP_BLUETOOTH)) {
- get_u32(&value, ACER_CAP_BLUETOOTH);
- data->bluetooth = value;
- }
-
if (has_cap(ACER_CAP_MAILLED)) {
get_u32(&value, ACER_CAP_MAILLED);
data->mailled = value;
@@ -1082,15 +1166,6 @@ static int acer_platform_resume(struct platform_device *device)
if (!data)
return -ENOMEM;
- if (has_cap(ACER_CAP_WIRELESS))
- set_u32(data->wireless, ACER_CAP_WIRELESS);
-
- if (has_cap(ACER_CAP_BLUETOOTH))
- set_u32(data->bluetooth, ACER_CAP_BLUETOOTH);
-
- if (has_cap(ACER_CAP_THREEG))
- set_u32(data->threeg, ACER_CAP_THREEG);
-
if (has_cap(ACER_CAP_MAILLED))
set_u32(data->mailled, ACER_CAP_MAILLED);
@@ -1115,12 +1190,6 @@ static struct platform_device *acer_platform_device;
static int remove_sysfs(struct platform_device *device)
{
- if (has_cap(ACER_CAP_WIRELESS))
- device_remove_file(&device->dev, &dev_attr_wireless);
-
- if (has_cap(ACER_CAP_BLUETOOTH))
- device_remove_file(&device->dev, &dev_attr_bluetooth);
-
if (has_cap(ACER_CAP_THREEG))
device_remove_file(&device->dev, &dev_attr_threeg);
@@ -1133,20 +1202,6 @@ static int create_sysfs(void)
{
int retval = -ENOMEM;
- if (has_cap(ACER_CAP_WIRELESS)) {
- retval = device_create_file(&acer_platform_device->dev,
- &dev_attr_wireless);
- if (retval)
- goto error_sysfs;
- }
-
- if (has_cap(ACER_CAP_BLUETOOTH)) {
- retval = device_create_file(&acer_platform_device->dev,
- &dev_attr_bluetooth);
- if (retval)
- goto error_sysfs;
- }
-
if (has_cap(ACER_CAP_THREEG)) {
retval = device_create_file(&acer_platform_device->dev,
&dev_attr_threeg);
@@ -1242,6 +1297,12 @@ static int __init acer_wmi_init(void)
set_quirks();
+ if (!acpi_video_backlight_support() && has_cap(ACER_CAP_BRIGHTNESS)) {
+ interface->capability &= ~ACER_CAP_BRIGHTNESS;
+ printk(ACER_INFO "Brightness must be controlled by "
+ "generic video driver\n");
+ }
+
if (platform_driver_register(&acer_platform_driver)) {
printk(ACER_ERR "Unable to register platform driver.\n");
goto error_platform_register;
diff --git a/drivers/misc/asus-laptop.c b/drivers/misc/asus-laptop.c
index 7c6dfd03de9..8fb8b359104 100644
--- a/drivers/misc/asus-laptop.c
+++ b/drivers/misc/asus-laptop.c
@@ -139,6 +139,7 @@ ASUS_HANDLE(lcd_switch, "\\_SB.PCI0.SBRG.EC0._Q10", /* All new models */
"\\_SB.PCI0.PX40.ECD0._Q10", /* L3C */
"\\_SB.PCI0.PX40.EC0.Q10", /* M1A */
"\\_SB.PCI0.LPCB.EC0._Q10", /* P30 */
+ "\\_SB.PCI0.LPCB.EC0._Q0E", /* P30/P35 */
"\\_SB.PCI0.PX40.Q10", /* S1x */
"\\Q10"); /* A2x, L2D, L3D, M2E */
@@ -280,7 +281,7 @@ static int write_acpi_int(acpi_handle handle, const char *method, int val,
static int read_wireless_status(int mask)
{
- ulong status;
+ unsigned long long status;
acpi_status rv = AE_OK;
if (!wireless_status_handle)
@@ -297,7 +298,7 @@ static int read_wireless_status(int mask)
static int read_gps_status(void)
{
- ulong status;
+ unsigned long long status;
acpi_status rv = AE_OK;
rv = acpi_evaluate_integer(gps_status_handle, NULL, NULL, &status);
@@ -350,7 +351,7 @@ static void write_status(acpi_handle handle, int out, int mask)
static void object##_led_set(struct led_classdev *led_cdev, \
enum led_brightness value) \
{ \
- object##_led_wk = value; \
+ object##_led_wk = (value > 0) ? 1 : 0; \
queue_work(led_workqueue, &object##_led_work); \
} \
static void object##_led_update(struct work_struct *ignored) \
@@ -404,7 +405,7 @@ static void lcd_blank(int blank)
static int read_brightness(struct backlight_device *bd)
{
- ulong value;
+ unsigned long long value;
acpi_status rv = AE_OK;
rv = acpi_evaluate_integer(brightness_get_handle, NULL, NULL, &value);
@@ -455,7 +456,7 @@ static ssize_t show_infos(struct device *dev,
struct device_attribute *attr, char *page)
{
int len = 0;
- ulong temp;
+ unsigned long long temp;
char buf[16]; //enough for all info
acpi_status rv = AE_OK;
@@ -603,7 +604,7 @@ static void set_display(int value)
static int read_display(void)
{
- ulong value = 0;
+ unsigned long long value = 0;
acpi_status rv = AE_OK;
/* In most of the case, we know how to set the display, but sometime
@@ -849,7 +850,7 @@ static int asus_hotk_get_info(void)
{
struct acpi_buffer buffer = { ACPI_ALLOCATE_BUFFER, NULL };
union acpi_object *model = NULL;
- ulong bsts_result, hwrs_result;
+ unsigned long long bsts_result, hwrs_result;
char *string = NULL;
acpi_status status;
@@ -996,7 +997,7 @@ static int asus_hotk_add(struct acpi_device *device)
hotk->handle = device->handle;
strcpy(acpi_device_name(device), ASUS_HOTK_DEVICE_NAME);
strcpy(acpi_device_class(device), ASUS_HOTK_CLASS);
- acpi_driver_data(device) = hotk;
+ device->driver_data = hotk;
hotk->device = device;
result = asus_hotk_check();
@@ -1207,9 +1208,13 @@ static int __init asus_laptop_init(void)
dev = acpi_get_physical_device(hotk->device->handle);
- result = asus_backlight_init(dev);
- if (result)
- goto fail_backlight;
+ if (!acpi_video_backlight_support()) {
+ result = asus_backlight_init(dev);
+ if (result)
+ goto fail_backlight;
+ } else
+ printk(ASUS_INFO "Brightness ignored, must be controlled by "
+ "ACPI video driver\n");
result = asus_led_init(dev);
if (result)
diff --git a/drivers/misc/c2port/Kconfig b/drivers/misc/c2port/Kconfig
new file mode 100644
index 00000000000..e46af9a5810
--- /dev/null
+++ b/drivers/misc/c2port/Kconfig
@@ -0,0 +1,35 @@
+#
+# C2 port devices
+#
+
+menuconfig C2PORT
+ tristate "Silicon Labs C2 port support (EXPERIMENTAL)"
+ depends on EXPERIMENTAL
+ default no
+ help
+ This option enables support for Silicon Labs C2 port used to
+ program Silicon micro controller chips (and other 8051 compatible).
+
+ If your board have no such micro controllers you don't need this
+ interface at all.
+
+ To compile this driver as a module, choose M here: the module will
+ be called c2port_core. Note that you also need a client module
+ usually called c2port-*.
+
+ If you are not sure, say N here.
+
+if C2PORT
+
+config C2PORT_DURAMAR_2150
+ tristate "C2 port support for Eurotech's Duramar 2150 (EXPERIMENTAL)"
+ depends on X86 && C2PORT
+ default no
+ help
+ This option enables C2 support for the Eurotech's Duramar 2150
+ on board micro controller.
+
+ To compile this driver as a module, choose M here: the module will
+ be called c2port-duramar2150.
+
+endif # C2PORT
diff --git a/drivers/misc/c2port/Makefile b/drivers/misc/c2port/Makefile
new file mode 100644
index 00000000000..3b2cf43d60f
--- /dev/null
+++ b/drivers/misc/c2port/Makefile
@@ -0,0 +1,3 @@
+obj-$(CONFIG_C2PORT) += core.o
+
+obj-$(CONFIG_C2PORT_DURAMAR_2150) += c2port-duramar2150.o
diff --git a/drivers/misc/c2port/c2port-duramar2150.c b/drivers/misc/c2port/c2port-duramar2150.c
new file mode 100644
index 00000000000..338dcc12150
--- /dev/null
+++ b/drivers/misc/c2port/c2port-duramar2150.c
@@ -0,0 +1,158 @@
+/*
+ * Silicon Labs C2 port Linux support for Eurotech Duramar 2150
+ *
+ * Copyright (c) 2008 Rodolfo Giometti <giometti@linux.it>
+ * Copyright (c) 2008 Eurotech S.p.A. <info@eurotech.it>
+ *
+ * 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
+ */
+
+#include <linux/errno.h>
+#include <linux/init.h>
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/delay.h>
+#include <linux/io.h>
+#include <linux/c2port.h>
+
+#define DATA_PORT 0x325
+#define DIR_PORT 0x326
+#define C2D (1 << 0)
+#define C2CK (1 << 1)
+
+static DEFINE_MUTEX(update_lock);
+
+/*
+ * C2 port operations
+ */
+
+static void duramar2150_c2port_access(struct c2port_device *dev, int status)
+{
+ u8 v;
+
+ mutex_lock(&update_lock);
+
+ v = inb(DIR_PORT);
+
+ /* 0 = input, 1 = output */
+ if (status)
+ outb(v | (C2D | C2CK), DIR_PORT);
+ else
+ /* When access is "off" is important that both lines are set
+ * as inputs or hi-impedence */
+ outb(v & ~(C2D | C2CK), DIR_PORT);
+
+ mutex_unlock(&update_lock);
+}
+
+static void duramar2150_c2port_c2d_dir(struct c2port_device *dev, int dir)
+{
+ u8 v;
+
+ mutex_lock(&update_lock);
+
+ v = inb(DIR_PORT);
+
+ if (dir)
+ outb(v & ~C2D, DIR_PORT);
+ else
+ outb(v | C2D, DIR_PORT);
+
+ mutex_unlock(&update_lock);
+}
+
+static int duramar2150_c2port_c2d_get(struct c2port_device *dev)
+{
+ return inb(DATA_PORT) & C2D;
+}
+
+static void duramar2150_c2port_c2d_set(struct c2port_device *dev, int status)
+{
+ u8 v;
+
+ mutex_lock(&update_lock);
+
+ v = inb(DATA_PORT);
+
+ if (status)
+ outb(v | C2D, DATA_PORT);
+ else
+ outb(v & ~C2D, DATA_PORT);
+
+ mutex_unlock(&update_lock);
+}
+
+static void duramar2150_c2port_c2ck_set(struct c2port_device *dev, int status)
+{
+ u8 v;
+
+ mutex_lock(&update_lock);
+
+ v = inb(DATA_PORT);
+
+ if (status)
+ outb(v | C2CK, DATA_PORT);
+ else
+ outb(v & ~C2CK, DATA_PORT);
+
+ mutex_unlock(&update_lock);
+}
+
+static struct c2port_ops duramar2150_c2port_ops = {
+ .block_size = 512, /* bytes */
+ .blocks_num = 30, /* total flash size: 15360 bytes */
+
+ .access = duramar2150_c2port_access,
+ .c2d_dir = duramar2150_c2port_c2d_dir,
+ .c2d_get = duramar2150_c2port_c2d_get,
+ .c2d_set = duramar2150_c2port_c2d_set,
+ .c2ck_set = duramar2150_c2port_c2ck_set,
+};
+
+static struct c2port_device *duramar2150_c2port_dev;
+
+/*
+ * Module stuff
+ */
+
+static int __init duramar2150_c2port_init(void)
+{
+ struct resource *res;
+ int ret = 0;
+
+ res = request_region(0x325, 2, "c2port");
+ if (!res)
+ return -EBUSY;
+
+ duramar2150_c2port_dev = c2port_device_register("uc",
+ &duramar2150_c2port_ops, NULL);
+ if (!duramar2150_c2port_dev) {
+ ret = -ENODEV;
+ goto free_region;
+ }
+
+ return 0;
+
+free_region:
+ release_region(0x325, 2);
+ return ret;
+}
+
+static void __exit duramar2150_c2port_exit(void)
+{
+ /* Setup the GPIOs as input by default (access = 0) */
+ duramar2150_c2port_access(duramar2150_c2port_dev, 0);
+
+ c2port_device_unregister(duramar2150_c2port_dev);
+
+ release_region(0x325, 2);
+}
+
+module_init(duramar2150_c2port_init);
+module_exit(duramar2150_c2port_exit);
+
+MODULE_AUTHOR("Rodolfo Giometti <giometti@linux.it>");
+MODULE_DESCRIPTION("Silicon Labs C2 port Linux support for Duramar 2150");
+MODULE_LICENSE("GPL");
diff --git a/drivers/misc/c2port/core.c b/drivers/misc/c2port/core.c
new file mode 100644
index 00000000000..0207dd59090
--- /dev/null
+++ b/drivers/misc/c2port/core.c
@@ -0,0 +1,1003 @@
+/*
+ * Silicon Labs C2 port core Linux support
+ *
+ * Copyright (c) 2007 Rodolfo Giometti <giometti@linux.it>
+ * Copyright (c) 2007 Eurotech S.p.A. <info@eurotech.it>
+ *
+ * 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
+ */
+
+#include <linux/module.h>
+#include <linux/init.h>
+#include <linux/device.h>
+#include <linux/errno.h>
+#include <linux/err.h>
+#include <linux/kernel.h>
+#include <linux/ctype.h>
+#include <linux/delay.h>
+#include <linux/idr.h>
+#include <linux/sched.h>
+
+#include <linux/c2port.h>
+
+#define DRIVER_NAME "c2port"
+#define DRIVER_VERSION "0.51.0"
+
+static DEFINE_SPINLOCK(c2port_idr_lock);
+static DEFINE_IDR(c2port_idr);
+
+/*
+ * Local variables
+ */
+
+static struct class *c2port_class;
+
+/*
+ * C2 registers & commands defines
+ */
+
+/* C2 registers */
+#define C2PORT_DEVICEID 0x00
+#define C2PORT_REVID 0x01
+#define C2PORT_FPCTL 0x02
+#define C2PORT_FPDAT 0xB4
+
+/* C2 interface commands */
+#define C2PORT_GET_VERSION 0x01
+#define C2PORT_DEVICE_ERASE 0x03
+#define C2PORT_BLOCK_READ 0x06
+#define C2PORT_BLOCK_WRITE 0x07
+#define C2PORT_PAGE_ERASE 0x08
+
+/* C2 status return codes */
+#define C2PORT_INVALID_COMMAND 0x00
+#define C2PORT_COMMAND_FAILED 0x02
+#define C2PORT_COMMAND_OK 0x0d
+
+/*
+ * C2 port low level signal managements
+ */
+
+static void c2port_reset(struct c2port_device *dev)
+{
+ struct c2port_ops *ops = dev->ops;
+
+ /* To reset the device we have to keep clock line low for at least
+ * 20us.
+ */
+ local_irq_disable();
+ ops->c2ck_set(dev, 0);
+ udelay(25);
+ ops->c2ck_set(dev, 1);
+ local_irq_enable();
+
+ udelay(1);
+}
+
+static void c2port_strobe_ck(struct c2port_device *dev)
+{
+ struct c2port_ops *ops = dev->ops;
+
+ /* During hi-low-hi transition we disable local IRQs to avoid
+ * interructions since C2 port specification says that it must be
+ * shorter than 5us, otherwise the microcontroller may consider
+ * it as a reset signal!
+ */
+ local_irq_disable();
+ ops->c2ck_set(dev, 0);
+ udelay(1);
+ ops->c2ck_set(dev, 1);
+ local_irq_enable();
+
+ udelay(1);
+}
+
+/*
+ * C2 port basic functions
+ */
+
+static void c2port_write_ar(struct c2port_device *dev, u8 addr)
+{
+ struct c2port_ops *ops = dev->ops;
+ int i;
+
+ /* START field */
+ c2port_strobe_ck(dev);
+
+ /* INS field (11b, LSB first) */
+ ops->c2d_dir(dev, 0);
+ ops->c2d_set(dev, 1);
+ c2port_strobe_ck(dev);
+ ops->c2d_set(dev, 1);
+ c2port_strobe_ck(dev);
+
+ /* ADDRESS field */
+ for (i = 0; i < 8; i++) {
+ ops->c2d_set(dev, addr & 0x01);
+ c2port_strobe_ck(dev);
+
+ addr >>= 1;
+ }
+
+ /* STOP field */
+ ops->c2d_dir(dev, 1);
+ c2port_strobe_ck(dev);
+}
+
+static int c2port_read_ar(struct c2port_device *dev, u8 *addr)
+{
+ struct c2port_ops *ops = dev->ops;
+ int i;
+
+ /* START field */
+ c2port_strobe_ck(dev);
+
+ /* INS field (10b, LSB first) */
+ ops->c2d_dir(dev, 0);
+ ops->c2d_set(dev, 0);
+ c2port_strobe_ck(dev);
+ ops->c2d_set(dev, 1);
+ c2port_strobe_ck(dev);
+
+ /* ADDRESS field */
+ ops->c2d_dir(dev, 1);
+ *addr = 0;
+ for (i = 0; i < 8; i++) {
+ *addr >>= 1; /* shift in 8-bit ADDRESS field LSB first */
+
+ c2port_strobe_ck(dev);
+ if (ops->c2d_get(dev))
+ *addr |= 0x80;
+ }
+
+ /* STOP field */
+ c2port_strobe_ck(dev);
+
+ return 0;
+}
+
+static int c2port_write_dr(struct c2port_device *dev, u8 data)
+{
+ struct c2port_ops *ops = dev->ops;
+ int timeout, i;
+
+ /* START field */
+ c2port_strobe_ck(dev);
+
+ /* INS field (01b, LSB first) */
+ ops->c2d_dir(dev, 0);
+ ops->c2d_set(dev, 1);
+ c2port_strobe_ck(dev);
+ ops->c2d_set(dev, 0);
+ c2port_strobe_ck(dev);
+
+ /* LENGTH field (00b, LSB first -> 1 byte) */
+ ops->c2d_set(dev, 0);
+ c2port_strobe_ck(dev);
+ ops->c2d_set(dev, 0);
+ c2port_strobe_ck(dev);
+
+ /* DATA field */
+ for (i = 0; i < 8; i++) {
+ ops->c2d_set(dev, data & 0x01);
+ c2port_strobe_ck(dev);
+
+ data >>= 1;
+ }
+
+ /* WAIT field */
+ ops->c2d_dir(dev, 1);
+ timeout = 20;
+ do {
+ c2port_strobe_ck(dev);
+ if (ops->c2d_get(dev))
+ break;
+
+ udelay(1);
+ } while (--timeout > 0);
+ if (timeout == 0)
+ return -EIO;
+
+ /* STOP field */
+ c2port_strobe_ck(dev);
+
+ return 0;
+}
+
+static int c2port_read_dr(struct c2port_device *dev, u8 *data)
+{
+ struct c2port_ops *ops = dev->ops;
+ int timeout, i;
+
+ /* START field */
+ c2port_strobe_ck(dev);
+
+ /* INS field (00b, LSB first) */
+ ops->c2d_dir(dev, 0);
+ ops->c2d_set(dev, 0);
+ c2port_strobe_ck(dev);
+ ops->c2d_set(dev, 0);
+ c2port_strobe_ck(dev);
+
+ /* LENGTH field (00b, LSB first -> 1 byte) */
+ ops->c2d_set(dev, 0);
+ c2port_strobe_ck(dev);
+ ops->c2d_set(dev, 0);
+ c2port_strobe_ck(dev);
+
+ /* WAIT field */
+ ops->c2d_dir(dev, 1);
+ timeout = 20;
+ do {
+ c2port_strobe_ck(dev);
+ if (ops->c2d_get(dev))
+ break;
+
+ udelay(1);
+ } while (--timeout > 0);
+ if (timeout == 0)
+ return -EIO;
+
+ /* DATA field */
+ *data = 0;
+ for (i = 0; i < 8; i++) {
+ *data >>= 1; /* shift in 8-bit DATA field LSB first */
+
+ c2port_strobe_ck(dev);
+ if (ops->c2d_get(dev))
+ *data |= 0x80;
+ }
+
+ /* STOP field */
+ c2port_strobe_ck(dev);
+
+ return 0;
+}
+
+static int c2port_poll_in_busy(struct c2port_device *dev)
+{
+ u8 addr;
+ int ret, timeout = 20;
+
+ do {
+ ret = (c2port_read_ar(dev, &addr));
+ if (ret < 0)
+ return -EIO;
+
+ if (!(addr & 0x02))
+ break;
+
+ udelay(1);
+ } while (--timeout > 0);
+ if (timeout == 0)
+ return -EIO;
+
+ return 0;
+}
+
+static int c2port_poll_out_ready(struct c2port_device *dev)
+{
+ u8 addr;
+ int ret, timeout = 10000; /* erase flash needs long time... */
+
+ do {
+ ret = (c2port_read_ar(dev, &addr));
+ if (ret < 0)
+ return -EIO;
+
+ if (addr & 0x01)
+ break;
+
+ udelay(1);
+ } while (--timeout > 0);
+ if (timeout == 0)
+ return -EIO;
+
+ return 0;
+}
+
+/*
+ * sysfs methods
+ */
+
+static ssize_t c2port_show_name(struct device *dev,
+ struct device_attribute *attr, char *buf)
+{
+ struct c2port_device *c2dev = dev_get_drvdata(dev);
+
+ return sprintf(buf, "%s\n", c2dev->name);
+}
+
+static ssize_t c2port_show_flash_blocks_num(struct device *dev,
+ struct device_attribute *attr, char *buf)
+{
+ struct c2port_device *c2dev = dev_get_drvdata(dev);
+ struct c2port_ops *ops = c2dev->ops;
+
+ return sprintf(buf, "%d\n", ops->blocks_num);
+}
+
+static ssize_t c2port_show_flash_block_size(struct device *dev,
+ struct device_attribute *attr, char *buf)
+{
+ struct c2port_device *c2dev = dev_get_drvdata(dev);
+ struct c2port_ops *ops = c2dev->ops;
+
+ return sprintf(buf, "%d\n", ops->block_size);
+}
+
+static ssize_t c2port_show_flash_size(struct device *dev,
+ struct device_attribute *attr, char *buf)
+{
+ struct c2port_device *c2dev = dev_get_drvdata(dev);
+ struct c2port_ops *ops = c2dev->ops;
+
+ return sprintf(buf, "%d\n", ops->blocks_num * ops->block_size);
+}
+
+static ssize_t c2port_show_access(struct device *dev,
+ struct device_attribute *attr, char *buf)
+{
+ struct c2port_device *c2dev = dev_get_drvdata(dev);
+
+ return sprintf(buf, "%d\n", c2dev->access);
+}
+
+static ssize_t c2port_store_access(struct device *dev,
+ struct device_attribute *attr,
+ const char *buf, size_t count)
+{
+ struct c2port_device *c2dev = dev_get_drvdata(dev);
+ struct c2port_ops *ops = c2dev->ops;
+ int status, ret;
+
+ ret = sscanf(buf, "%d", &status);
+ if (ret != 1)
+ return -EINVAL;
+
+ mutex_lock(&c2dev->mutex);
+
+ c2dev->access = !!status;
+
+ /* If access is "on" clock should be HIGH _before_ setting the line
+ * as output and data line should be set as INPUT anyway */
+ if (c2dev->access)
+ ops->c2ck_set(c2dev, 1);
+ ops->access(c2dev, c2dev->access);
+ if (c2dev->access)
+ ops->c2d_dir(c2dev, 1);
+
+ mutex_unlock(&c2dev->mutex);
+
+ return count;
+}
+
+static ssize_t c2port_store_reset(struct device *dev,
+ struct device_attribute *attr,
+ const char *buf, size_t count)
+{
+ struct c2port_device *c2dev = dev_get_drvdata(dev);
+
+ /* Check the device access status */
+ if (!c2dev->access)
+ return -EBUSY;
+
+ mutex_lock(&c2dev->mutex);
+
+ c2port_reset(c2dev);
+ c2dev->flash_access = 0;
+
+ mutex_unlock(&c2dev->mutex);
+
+ return count;
+}
+
+static ssize_t __c2port_show_dev_id(struct c2port_device *dev, char *buf)
+{
+ u8 data;
+ int ret;
+
+ /* Select DEVICEID register for C2 data register accesses */
+ c2port_write_ar(dev, C2PORT_DEVICEID);
+
+ /* Read and return the device ID register */
+ ret = c2port_read_dr(dev, &data);
+ if (ret < 0)
+ return ret;
+
+ return sprintf(buf, "%d\n", data);
+}
+
+static ssize_t c2port_show_dev_id(struct device *dev,
+ struct device_attribute *attr, char *buf)
+{
+ struct c2port_device *c2dev = dev_get_drvdata(dev);
+ ssize_t ret;
+
+ /* Check the device access status */
+ if (!c2dev->access)
+ return -EBUSY;
+
+ mutex_lock(&c2dev->mutex);
+ ret = __c2port_show_dev_id(c2dev, buf);
+ mutex_unlock(&c2dev->mutex);
+
+ if (ret < 0)
+ dev_err(dev, "cannot read from %s\n", c2dev->name);
+
+ return ret;
+}
+
+static ssize_t __c2port_show_rev_id(struct c2port_device *dev, char *buf)
+{
+ u8 data;
+ int ret;
+
+ /* Select REVID register for C2 data register accesses */
+ c2port_write_ar(dev, C2PORT_REVID);
+
+ /* Read and return the revision ID register */
+ ret = c2port_read_dr(dev, &data);
+ if (ret < 0)
+ return ret;
+
+ return sprintf(buf, "%d\n", data);
+}
+
+static ssize_t c2port_show_rev_id(struct device *dev,
+ struct device_attribute *attr, char *buf)
+{
+ struct c2port_device *c2dev = dev_get_drvdata(dev);
+ ssize_t ret;
+
+ /* Check the device access status */
+ if (!c2dev->access)
+ return -EBUSY;
+
+ mutex_lock(&c2dev->mutex);
+ ret = __c2port_show_rev_id(c2dev, buf);
+ mutex_unlock(&c2dev->mutex);
+
+ if (ret < 0)
+ dev_err(c2dev->dev, "cannot read from %s\n", c2dev->name);
+
+ return ret;
+}
+
+static ssize_t c2port_show_flash_access(struct device *dev,
+ struct device_attribute *attr, char *buf)
+{
+ struct c2port_device *c2dev = dev_get_drvdata(dev);
+
+ return sprintf(buf, "%d\n", c2dev->flash_access);
+}
+
+static ssize_t __c2port_store_flash_access(struct c2port_device *dev,
+ int status)
+{
+ int ret;
+
+ /* Check the device access status */
+ if (!dev->access)
+ return -EBUSY;
+
+ dev->flash_access = !!status;
+
+ /* If flash_access is off we have nothing to do... */
+ if (dev->flash_access == 0)
+ return 0;
+
+ /* Target the C2 flash programming control register for C2 data
+ * register access */
+ c2port_write_ar(dev, C2PORT_FPCTL);
+
+ /* Write the first keycode to enable C2 Flash programming */
+ ret = c2port_write_dr(dev, 0x02);
+ if (ret < 0)
+ return ret;
+
+ /* Write the second keycode to enable C2 Flash programming */
+ ret = c2port_write_dr(dev, 0x01);
+ if (ret < 0)
+ return ret;
+
+ /* Delay for at least 20ms to ensure the target is ready for
+ * C2 flash programming */
+ mdelay(25);
+
+ return 0;
+}
+
+static ssize_t c2port_store_flash_access(struct device *dev,
+ struct device_attribute *attr,
+ const char *buf, size_t count)
+{
+ struct c2port_device *c2dev = dev_get_drvdata(dev);
+ int status;
+ ssize_t ret;
+
+ ret = sscanf(buf, "%d", &status);
+ if (ret != 1)
+ return -EINVAL;
+
+ mutex_lock(&c2dev->mutex);
+ ret = __c2port_store_flash_access(c2dev, status);
+ mutex_unlock(&c2dev->mutex);
+
+ if (ret < 0) {
+ dev_err(c2dev->dev, "cannot enable %s flash programming\n",
+ c2dev->name);
+ return ret;
+ }
+
+ return count;
+}
+
+static ssize_t __c2port_write_flash_erase(struct c2port_device *dev)
+{
+ u8 status;
+ int ret;
+
+ /* Target the C2 flash programming data register for C2 data register
+ * access.
+ */
+ c2port_write_ar(dev, C2PORT_FPDAT);
+
+ /* Send device erase command */
+ c2port_write_dr(dev, C2PORT_DEVICE_ERASE);
+
+ /* Wait for input acknowledge */
+ ret = c2port_poll_in_busy(dev);
+ if (ret < 0)
+ return ret;
+
+ /* Should check status before starting FLASH access sequence */
+
+ /* Wait for status information */
+ ret = c2port_poll_out_ready(dev);
+ if (ret < 0)
+ return ret;
+
+ /* Read flash programming interface status */
+ ret = c2port_read_dr(dev, &status);
+ if (ret < 0)
+ return ret;
+ if (status != C2PORT_COMMAND_OK)
+ return -EBUSY;
+
+ /* Send a three-byte arming sequence to enable the device erase.
+ * If the sequence is not received correctly, the command will be
+ * ignored.
+ * Sequence is: 0xde, 0xad, 0xa5.
+ */
+ c2port_write_dr(dev, 0xde);
+ ret = c2port_poll_in_busy(dev);
+ if (ret < 0)
+ return ret;
+ c2port_write_dr(dev, 0xad);
+ ret = c2port_poll_in_busy(dev);
+ if (ret < 0)
+ return ret;
+ c2port_write_dr(dev, 0xa5);
+ ret = c2port_poll_in_busy(dev);
+ if (ret < 0)
+ return ret;
+
+ ret = c2port_poll_out_ready(dev);
+ if (ret < 0)
+ return ret;
+
+ return 0;
+}
+
+static ssize_t c2port_store_flash_erase(struct device *dev,
+ struct device_attribute *attr,
+ const char *buf, size_t count)
+{
+ struct c2port_device *c2dev = dev_get_drvdata(dev);
+ int ret;
+
+ /* Check the device and flash access status */
+ if (!c2dev->access || !c2dev->flash_access)
+ return -EBUSY;
+
+ mutex_lock(&c2dev->mutex);
+ ret = __c2port_write_flash_erase(c2dev);
+ mutex_unlock(&c2dev->mutex);
+
+ if (ret < 0) {
+ dev_err(c2dev->dev, "cannot erase %s flash\n", c2dev->name);
+ return ret;
+ }
+
+ return count;
+}
+
+static ssize_t __c2port_read_flash_data(struct c2port_device *dev,
+ char *buffer, loff_t offset, size_t count)
+{
+ struct c2port_ops *ops = dev->ops;
+ u8 status, nread = 128;
+ int i, ret;
+
+ /* Check for flash end */
+ if (offset >= ops->block_size * ops->blocks_num)
+ return 0;
+
+ if (ops->block_size * ops->blocks_num - offset < nread)
+ nread = ops->block_size * ops->blocks_num - offset;
+ if (count < nread)
+ nread = count;
+ if (nread == 0)
+ return nread;
+
+ /* Target the C2 flash programming data register for C2 data register
+ * access */
+ c2port_write_ar(dev, C2PORT_FPDAT);
+
+ /* Send flash block read command */
+ c2port_write_dr(dev, C2PORT_BLOCK_READ);
+
+ /* Wait for input acknowledge */
+ ret = c2port_poll_in_busy(dev);
+ if (ret < 0)
+ return ret;
+
+ /* Should check status before starting FLASH access sequence */
+
+ /* Wait for status information */
+ ret = c2port_poll_out_ready(dev);
+ if (ret < 0)
+ return ret;
+
+ /* Read flash programming interface status */
+ ret = c2port_read_dr(dev, &status);
+ if (ret < 0)
+ return ret;
+ if (status != C2PORT_COMMAND_OK)
+ return -EBUSY;
+
+ /* Send address high byte */
+ c2port_write_dr(dev, offset >> 8);
+ ret = c2port_poll_in_busy(dev);
+ if (ret < 0)
+ return ret;
+
+ /* Send address low byte */
+ c2port_write_dr(dev, offset & 0x00ff);
+ ret = c2port_poll_in_busy(dev);
+ if (ret < 0)
+ return ret;
+
+ /* Send address block size */
+ c2port_write_dr(dev, nread);
+ ret = c2port_poll_in_busy(dev);
+ if (ret < 0)
+ return ret;
+
+ /* Should check status before reading FLASH block */
+
+ /* Wait for status information */
+ ret = c2port_poll_out_ready(dev);
+ if (ret < 0)
+ return ret;
+
+ /* Read flash programming interface status */
+ ret = c2port_read_dr(dev, &status);
+ if (ret < 0)
+ return ret;
+ if (status != C2PORT_COMMAND_OK)
+ return -EBUSY;
+
+ /* Read flash block */
+ for (i = 0; i < nread; i++) {
+ ret = c2port_poll_out_ready(dev);
+ if (ret < 0)
+ return ret;
+
+ ret = c2port_read_dr(dev, buffer+i);
+ if (ret < 0)
+ return ret;
+ }
+
+ return nread;
+}
+
+static ssize_t c2port_read_flash_data(struct kobject *kobj,
+ struct bin_attribute *attr,
+ char *buffer, loff_t offset, size_t count)
+{
+ struct c2port_device *c2dev =
+ dev_get_drvdata(container_of(kobj,
+ struct device, kobj));
+ ssize_t ret;
+
+ /* Check the device and flash access status */
+ if (!c2dev->access || !c2dev->flash_access)
+ return -EBUSY;
+
+ mutex_lock(&c2dev->mutex);
+ ret = __c2port_read_flash_data(c2dev, buffer, offset, count);
+ mutex_unlock(&c2dev->mutex);
+
+ if (ret < 0)
+ dev_err(c2dev->dev, "cannot read %s flash\n", c2dev->name);
+
+ return ret;
+}
+
+static ssize_t __c2port_write_flash_data(struct c2port_device *dev,
+ char *buffer, loff_t offset, size_t count)
+{
+ struct c2port_ops *ops = dev->ops;
+ u8 status, nwrite = 128;
+ int i, ret;
+
+ if (nwrite > count)
+ nwrite = count;
+ if (ops->block_size * ops->blocks_num - offset < nwrite)
+ nwrite = ops->block_size * ops->blocks_num - offset;
+
+ /* Check for flash end */
+ if (offset >= ops->block_size * ops->blocks_num)
+ return -EINVAL;
+
+ /* Target the C2 flash programming data register for C2 data register
+ * access */
+ c2port_write_ar(dev, C2PORT_FPDAT);
+
+ /* Send flash block write command */
+ c2port_write_dr(dev, C2PORT_BLOCK_WRITE);
+
+ /* Wait for input acknowledge */
+ ret = c2port_poll_in_busy(dev);
+ if (ret < 0)
+ return ret;
+
+ /* Should check status before starting FLASH access sequence */
+
+ /* Wait for status information */
+ ret = c2port_poll_out_ready(dev);
+ if (ret < 0)
+ return ret;
+
+ /* Read flash programming interface status */
+ ret = c2port_read_dr(dev, &status);
+ if (ret < 0)
+ return ret;
+ if (status != C2PORT_COMMAND_OK)
+ return -EBUSY;
+
+ /* Send address high byte */
+ c2port_write_dr(dev, offset >> 8);
+ ret = c2port_poll_in_busy(dev);
+ if (ret < 0)
+ return ret;
+
+ /* Send address low byte */
+ c2port_write_dr(dev, offset & 0x00ff);
+ ret = c2port_poll_in_busy(dev);
+ if (ret < 0)
+ return ret;
+
+ /* Send address block size */
+ c2port_write_dr(dev, nwrite);
+ ret = c2port_poll_in_busy(dev);
+ if (ret < 0)
+ return ret;
+
+ /* Should check status before writing FLASH block */
+
+ /* Wait for status information */
+ ret = c2port_poll_out_ready(dev);
+ if (ret < 0)
+ return ret;
+
+ /* Read flash programming interface status */
+ ret = c2port_read_dr(dev, &status);
+ if (ret < 0)
+ return ret;
+ if (status != C2PORT_COMMAND_OK)
+ return -EBUSY;
+
+ /* Write flash block */
+ for (i = 0; i < nwrite; i++) {
+ ret = c2port_write_dr(dev, *(buffer+i));
+ if (ret < 0)
+ return ret;
+
+ ret = c2port_poll_in_busy(dev);
+ if (ret < 0)
+ return ret;
+
+ }
+
+ /* Wait for last flash write to complete */
+ ret = c2port_poll_out_ready(dev);
+ if (ret < 0)
+ return ret;
+
+ return nwrite;
+}
+
+static ssize_t c2port_write_flash_data(struct kobject *kobj,
+ struct bin_attribute *attr,
+ char *buffer, loff_t offset, size_t count)
+{
+ struct c2port_device *c2dev =
+ dev_get_drvdata(container_of(kobj,
+ struct device, kobj));
+ int ret;
+
+ /* Check the device access status */
+ if (!c2dev->access || !c2dev->flash_access)
+ return -EBUSY;
+
+ mutex_lock(&c2dev->mutex);
+ ret = __c2port_write_flash_data(c2dev, buffer, offset, count);
+ mutex_unlock(&c2dev->mutex);
+
+ if (ret < 0)
+ dev_err(c2dev->dev, "cannot write %s flash\n", c2dev->name);
+
+ return ret;
+}
+
+/*
+ * Class attributes
+ */
+
+static struct device_attribute c2port_attrs[] = {
+ __ATTR(name, 0444, c2port_show_name, NULL),
+ __ATTR(flash_blocks_num, 0444, c2port_show_flash_blocks_num, NULL),
+ __ATTR(flash_block_size, 0444, c2port_show_flash_block_size, NULL),
+ __ATTR(flash_size, 0444, c2port_show_flash_size, NULL),
+ __ATTR(access, 0644, c2port_show_access, c2port_store_access),
+ __ATTR(reset, 0200, NULL, c2port_store_reset),
+ __ATTR(dev_id, 0444, c2port_show_dev_id, NULL),
+ __ATTR(rev_id, 0444, c2port_show_rev_id, NULL),
+
+ __ATTR(flash_access, 0644, c2port_show_flash_access,
+ c2port_store_flash_access),
+ __ATTR(flash_erase, 0200, NULL, c2port_store_flash_erase),
+ __ATTR_NULL,
+};
+
+static struct bin_attribute c2port_bin_attrs = {
+ .attr = {
+ .name = "flash_data",
+ .mode = 0644
+ },
+ .read = c2port_read_flash_data,
+ .write = c2port_write_flash_data,
+ /* .size is computed at run-time */
+};
+
+/*
+ * Exported functions
+ */
+
+struct c2port_device *c2port_device_register(char *name,
+ struct c2port_ops *ops, void *devdata)
+{
+ struct c2port_device *c2dev;
+ int id, ret;
+
+ if (unlikely(!ops) || unlikely(!ops->access) || \
+ unlikely(!ops->c2d_dir) || unlikely(!ops->c2ck_set) || \
+ unlikely(!ops->c2d_get) || unlikely(!ops->c2d_set))
+ return ERR_PTR(-EINVAL);
+
+ c2dev = kmalloc(sizeof(struct c2port_device), GFP_KERNEL);
+ if (unlikely(!c2dev))
+ return ERR_PTR(-ENOMEM);
+
+ ret = idr_pre_get(&c2port_idr, GFP_KERNEL);
+ if (!ret) {
+ ret = -ENOMEM;
+ goto error_idr_get_new;
+ }
+
+ spin_lock_irq(&c2port_idr_lock);
+ ret = idr_get_new(&c2port_idr, c2dev, &id);
+ spin_unlock_irq(&c2port_idr_lock);
+
+ if (ret < 0)
+ goto error_idr_get_new;
+ c2dev->id = id;
+
+ c2dev->dev = device_create(c2port_class, NULL, 0, c2dev,
+ "c2port%d", id);
+ if (unlikely(!c2dev->dev)) {
+ ret = -ENOMEM;
+ goto error_device_create;
+ }
+ dev_set_drvdata(c2dev->dev, c2dev);
+
+ strncpy(c2dev->name, name, C2PORT_NAME_LEN);
+ c2dev->ops = ops;
+ mutex_init(&c2dev->mutex);
+
+ /* Create binary file */
+ c2port_bin_attrs.size = ops->blocks_num * ops->block_size;
+ ret = device_create_bin_file(c2dev->dev, &c2port_bin_attrs);
+ if (unlikely(ret))
+ goto error_device_create_bin_file;
+
+ /* By default C2 port access is off */
+ c2dev->access = c2dev->flash_access = 0;
+ ops->access(c2dev, 0);
+
+ dev_info(c2dev->dev, "C2 port %s added\n", name);
+ dev_info(c2dev->dev, "%s flash has %d blocks x %d bytes "
+ "(%d bytes total)\n",
+ name, ops->blocks_num, ops->block_size,
+ ops->blocks_num * ops->block_size);
+
+ return c2dev;
+
+error_device_create_bin_file:
+ device_destroy(c2port_class, 0);
+
+error_device_create:
+ spin_lock_irq(&c2port_idr_lock);
+ idr_remove(&c2port_idr, id);
+ spin_unlock_irq(&c2port_idr_lock);
+
+error_idr_get_new:
+ kfree(c2dev);
+
+ return ERR_PTR(ret);
+}
+EXPORT_SYMBOL(c2port_device_register);
+
+void c2port_device_unregister(struct c2port_device *c2dev)
+{
+ if (!c2dev)
+ return;
+
+ dev_info(c2dev->dev, "C2 port %s removed\n", c2dev->name);
+
+ device_remove_bin_file(c2dev->dev, &c2port_bin_attrs);
+ spin_lock_irq(&c2port_idr_lock);
+ idr_remove(&c2port_idr, c2dev->id);
+ spin_unlock_irq(&c2port_idr_lock);
+
+ device_destroy(c2port_class, c2dev->id);
+
+ kfree(c2dev);
+}
+EXPORT_SYMBOL(c2port_device_unregister);
+
+/*
+ * Module stuff
+ */
+
+static int __init c2port_init(void)
+{
+ printk(KERN_INFO "Silicon Labs C2 port support v. " DRIVER_VERSION
+ " - (C) 2007 Rodolfo Giometti\n");
+
+ c2port_class = class_create(THIS_MODULE, "c2port");
+ if (!c2port_class) {
+ printk(KERN_ERR "c2port: failed to allocate class\n");
+ return -ENOMEM;
+ }
+ c2port_class->dev_attrs = c2port_attrs;
+
+ return 0;
+}
+
+static void __exit c2port_exit(void)
+{
+ class_destroy(c2port_class);
+}
+
+module_init(c2port_init);
+module_exit(c2port_exit);
+
+MODULE_AUTHOR("Rodolfo Giometti <giometti@linux.it>");
+MODULE_DESCRIPTION("Silicon Labs C2 port support v. " DRIVER_VERSION);
+MODULE_LICENSE("GPL");
diff --git a/drivers/misc/compal-laptop.c b/drivers/misc/compal-laptop.c
index 344b790a625..11003bba10d 100644
--- a/drivers/misc/compal-laptop.c
+++ b/drivers/misc/compal-laptop.c
@@ -326,12 +326,14 @@ static int __init compal_init(void)
/* Register backlight stuff */
- compalbl_device = backlight_device_register("compal-laptop", NULL, NULL,
- &compalbl_ops);
- if (IS_ERR(compalbl_device))
- return PTR_ERR(compalbl_device);
+ if (!acpi_video_backlight_support()) {
+ compalbl_device = backlight_device_register("compal-laptop", NULL, NULL,
+ &compalbl_ops);
+ if (IS_ERR(compalbl_device))
+ return PTR_ERR(compalbl_device);
- compalbl_device->props.max_brightness = COMPAL_LCD_LEVEL_MAX-1;
+ compalbl_device->props.max_brightness = COMPAL_LCD_LEVEL_MAX-1;
+ }
ret = platform_driver_register(&compal_driver);
if (ret)
diff --git a/drivers/misc/eeepc-laptop.c b/drivers/misc/eeepc-laptop.c
index 1ee8501e90f..02fe2b8b893 100644
--- a/drivers/misc/eeepc-laptop.c
+++ b/drivers/misc/eeepc-laptop.c
@@ -28,6 +28,8 @@
#include <acpi/acpi_drivers.h>
#include <acpi/acpi_bus.h>
#include <linux/uaccess.h>
+#include <linux/input.h>
+#include <linux/rfkill.h>
#define EEEPC_LAPTOP_VERSION "0.1"
@@ -125,6 +127,10 @@ struct eeepc_hotk {
by this BIOS */
uint init_flag; /* Init flags */
u16 event_count[128]; /* count for each event */
+ struct input_dev *inputdev;
+ u16 *keycode_map;
+ struct rfkill *eeepc_wlan_rfkill;
+ struct rfkill *eeepc_bluetooth_rfkill;
};
/* The actual device the driver binds to */
@@ -140,6 +146,27 @@ static struct platform_driver platform_driver = {
static struct platform_device *platform_device;
+struct key_entry {
+ char type;
+ u8 code;
+ u16 keycode;
+};
+
+enum { KE_KEY, KE_END };
+
+static struct key_entry eeepc_keymap[] = {
+ /* Sleep already handled via generic ACPI code */
+ {KE_KEY, 0x10, KEY_WLAN },
+ {KE_KEY, 0x12, KEY_PROG1 },
+ {KE_KEY, 0x13, KEY_MUTE },
+ {KE_KEY, 0x14, KEY_VOLUMEDOWN },
+ {KE_KEY, 0x15, KEY_VOLUMEUP },
+ {KE_KEY, 0x30, KEY_SWITCHVIDEOMODE },
+ {KE_KEY, 0x31, KEY_SWITCHVIDEOMODE },
+ {KE_KEY, 0x32, KEY_SWITCHVIDEOMODE },
+ {KE_END, 0},
+};
+
/*
* The hotkey driver declaration
*/
@@ -204,7 +231,7 @@ static int write_acpi_int(acpi_handle handle, const char *method, int val,
static int read_acpi_int(acpi_handle handle, const char *method, int *val)
{
acpi_status status;
- ulong result;
+ unsigned long long result;
status = acpi_evaluate_integer(handle, (char *)method, NULL, &result);
if (ACPI_FAILURE(status)) {
@@ -261,6 +288,44 @@ static int update_bl_status(struct backlight_device *bd)
}
/*
+ * Rfkill helpers
+ */
+
+static int eeepc_wlan_rfkill_set(void *data, enum rfkill_state state)
+{
+ if (state == RFKILL_STATE_SOFT_BLOCKED)
+ return set_acpi(CM_ASL_WLAN, 0);
+ else
+ return set_acpi(CM_ASL_WLAN, 1);
+}
+
+static int eeepc_wlan_rfkill_state(void *data, enum rfkill_state *state)
+{
+ if (get_acpi(CM_ASL_WLAN) == 1)
+ *state = RFKILL_STATE_UNBLOCKED;
+ else
+ *state = RFKILL_STATE_SOFT_BLOCKED;
+ return 0;
+}
+
+static int eeepc_bluetooth_rfkill_set(void *data, enum rfkill_state state)
+{
+ if (state == RFKILL_STATE_SOFT_BLOCKED)
+ return set_acpi(CM_ASL_BLUETOOTH, 0);
+ else
+ return set_acpi(CM_ASL_BLUETOOTH, 1);
+}
+
+static int eeepc_bluetooth_rfkill_state(void *data, enum rfkill_state *state)
+{
+ if (get_acpi(CM_ASL_BLUETOOTH) == 1)
+ *state = RFKILL_STATE_UNBLOCKED;
+ else
+ *state = RFKILL_STATE_SOFT_BLOCKED;
+ return 0;
+}
+
+/*
* Sys helpers
*/
static int parse_arg(const char *buf, unsigned long count, int *val)
@@ -311,13 +376,11 @@ static ssize_t show_sys_acpi(int cm, char *buf)
EEEPC_CREATE_DEVICE_ATTR(camera, CM_ASL_CAMERA);
EEEPC_CREATE_DEVICE_ATTR(cardr, CM_ASL_CARDREADER);
EEEPC_CREATE_DEVICE_ATTR(disp, CM_ASL_DISPLAYSWITCH);
-EEEPC_CREATE_DEVICE_ATTR(wlan, CM_ASL_WLAN);
static struct attribute *platform_attributes[] = {
&dev_attr_camera.attr,
&dev_attr_cardr.attr,
&dev_attr_disp.attr,
- &dev_attr_wlan.attr,
NULL
};
@@ -328,8 +391,64 @@ static struct attribute_group platform_attribute_group = {
/*
* Hotkey functions
*/
+static struct key_entry *eepc_get_entry_by_scancode(int code)
+{
+ struct key_entry *key;
+
+ for (key = eeepc_keymap; key->type != KE_END; key++)
+ if (code == key->code)
+ return key;
+
+ return NULL;
+}
+
+static struct key_entry *eepc_get_entry_by_keycode(int code)
+{
+ struct key_entry *key;
+
+ for (key = eeepc_keymap; key->type != KE_END; key++)
+ if (code == key->keycode && key->type == KE_KEY)
+ return key;
+
+ return NULL;
+}
+
+static int eeepc_getkeycode(struct input_dev *dev, int scancode, int *keycode)
+{
+ struct key_entry *key = eepc_get_entry_by_scancode(scancode);
+
+ if (key && key->type == KE_KEY) {
+ *keycode = key->keycode;
+ return 0;
+ }
+
+ return -EINVAL;
+}
+
+static int eeepc_setkeycode(struct input_dev *dev, int scancode, int keycode)
+{
+ struct key_entry *key;
+ int old_keycode;
+
+ if (keycode < 0 || keycode > KEY_MAX)
+ return -EINVAL;
+
+ key = eepc_get_entry_by_scancode(scancode);
+ if (key && key->type == KE_KEY) {
+ old_keycode = key->keycode;
+ key->keycode = keycode;
+ set_bit(keycode, dev->keybit);
+ if (!eepc_get_entry_by_keycode(old_keycode))
+ clear_bit(old_keycode, dev->keybit);
+ return 0;
+ }
+
+ return -EINVAL;
+}
+
static int eeepc_hotk_check(void)
{
+ const struct key_entry *key;
struct acpi_buffer buffer = { ACPI_ALLOCATE_BUFFER, NULL };
int result;
@@ -356,6 +475,31 @@ static int eeepc_hotk_check(void)
"Get control methods supported: 0x%x\n",
ehotk->cm_supported);
}
+ ehotk->inputdev = input_allocate_device();
+ if (!ehotk->inputdev) {
+ printk(EEEPC_INFO "Unable to allocate input device\n");
+ return 0;
+ }
+ ehotk->inputdev->name = "Asus EeePC extra buttons";
+ ehotk->inputdev->phys = EEEPC_HOTK_FILE "/input0";
+ ehotk->inputdev->id.bustype = BUS_HOST;
+ ehotk->inputdev->getkeycode = eeepc_getkeycode;
+ ehotk->inputdev->setkeycode = eeepc_setkeycode;
+
+ for (key = eeepc_keymap; key->type != KE_END; key++) {
+ switch (key->type) {
+ case KE_KEY:
+ set_bit(EV_KEY, ehotk->inputdev->evbit);
+ set_bit(key->keycode, ehotk->inputdev->keybit);
+ break;
+ }
+ }
+ result = input_register_device(ehotk->inputdev);
+ if (result) {
+ printk(EEEPC_INFO "Unable to register input device\n");
+ input_free_device(ehotk->inputdev);
+ return 0;
+ }
} else {
printk(EEEPC_ERR "Hotkey device not present, aborting\n");
return -EINVAL;
@@ -363,21 +507,6 @@ static int eeepc_hotk_check(void)
return 0;
}
-static void notify_wlan(u32 *event)
-{
- /* if DISABLE_ASL_WLAN is set, the notify code for fn+f2
- will always be 0x10 */
- if (ehotk->cm_supported & (0x1 << CM_ASL_WLAN)) {
- const char *method = cm_getv[CM_ASL_WLAN];
- int value;
- if (read_acpi_int(ehotk->handle, method, &value))
- printk(EEEPC_WARNING "Error reading %s\n",
- method);
- else if (value == 1)
- *event = 0x11;
- }
-}
-
static void notify_brn(void)
{
struct backlight_device *bd = eeepc_backlight_device;
@@ -386,14 +515,28 @@ static void notify_brn(void)
static void eeepc_hotk_notify(acpi_handle handle, u32 event, void *data)
{
+ static struct key_entry *key;
if (!ehotk)
return;
- if (event == NOTIFY_WLAN_ON && (DISABLE_ASL_WLAN & ehotk->init_flag))
- notify_wlan(&event);
if (event >= NOTIFY_BRN_MIN && event <= NOTIFY_BRN_MAX)
notify_brn();
acpi_bus_generate_proc_event(ehotk->device, event,
ehotk->event_count[event % 128]++);
+ if (ehotk->inputdev) {
+ key = eepc_get_entry_by_scancode(event);
+ if (key) {
+ switch (key->type) {
+ case KE_KEY:
+ input_report_key(ehotk->inputdev, key->keycode,
+ 1);
+ input_sync(ehotk->inputdev);
+ input_report_key(ehotk->inputdev, key->keycode,
+ 0);
+ input_sync(ehotk->inputdev);
+ break;
+ }
+ }
+ }
}
static int eeepc_hotk_add(struct acpi_device *device)
@@ -411,7 +554,7 @@ static int eeepc_hotk_add(struct acpi_device *device)
ehotk->handle = device->handle;
strcpy(acpi_device_name(device), EEEPC_HOTK_DEVICE_NAME);
strcpy(acpi_device_class(device), EEEPC_HOTK_CLASS);
- acpi_driver_data(device) = ehotk;
+ device->driver_data = ehotk;
ehotk->device = device;
result = eeepc_hotk_check();
if (result)
@@ -420,6 +563,47 @@ static int eeepc_hotk_add(struct acpi_device *device)
eeepc_hotk_notify, ehotk);
if (ACPI_FAILURE(status))
printk(EEEPC_ERR "Error installing notify handler\n");
+
+ if (get_acpi(CM_ASL_WLAN) != -1) {
+ ehotk->eeepc_wlan_rfkill = rfkill_allocate(&device->dev,
+ RFKILL_TYPE_WLAN);
+
+ if (!ehotk->eeepc_wlan_rfkill)
+ goto end;
+
+ ehotk->eeepc_wlan_rfkill->name = "eeepc-wlan";
+ ehotk->eeepc_wlan_rfkill->toggle_radio = eeepc_wlan_rfkill_set;
+ ehotk->eeepc_wlan_rfkill->get_state = eeepc_wlan_rfkill_state;
+ if (get_acpi(CM_ASL_WLAN) == 1)
+ ehotk->eeepc_wlan_rfkill->state =
+ RFKILL_STATE_UNBLOCKED;
+ else
+ ehotk->eeepc_wlan_rfkill->state =
+ RFKILL_STATE_SOFT_BLOCKED;
+ rfkill_register(ehotk->eeepc_wlan_rfkill);
+ }
+
+ if (get_acpi(CM_ASL_BLUETOOTH) != -1) {
+ ehotk->eeepc_bluetooth_rfkill =
+ rfkill_allocate(&device->dev, RFKILL_TYPE_BLUETOOTH);
+
+ if (!ehotk->eeepc_bluetooth_rfkill)
+ goto end;
+
+ ehotk->eeepc_bluetooth_rfkill->name = "eeepc-bluetooth";
+ ehotk->eeepc_bluetooth_rfkill->toggle_radio =
+ eeepc_bluetooth_rfkill_set;
+ ehotk->eeepc_bluetooth_rfkill->get_state =
+ eeepc_bluetooth_rfkill_state;
+ if (get_acpi(CM_ASL_BLUETOOTH) == 1)
+ ehotk->eeepc_bluetooth_rfkill->state =
+ RFKILL_STATE_UNBLOCKED;
+ else
+ ehotk->eeepc_bluetooth_rfkill->state =
+ RFKILL_STATE_SOFT_BLOCKED;
+ rfkill_register(ehotk->eeepc_bluetooth_rfkill);
+ }
+
end:
if (result) {
kfree(ehotk);
@@ -553,6 +737,12 @@ static void eeepc_backlight_exit(void)
{
if (eeepc_backlight_device)
backlight_device_unregister(eeepc_backlight_device);
+ if (ehotk->inputdev)
+ input_unregister_device(ehotk->inputdev);
+ if (ehotk->eeepc_wlan_rfkill)
+ rfkill_unregister(ehotk->eeepc_wlan_rfkill);
+ if (ehotk->eeepc_bluetooth_rfkill)
+ rfkill_unregister(ehotk->eeepc_bluetooth_rfkill);
eeepc_backlight_device = NULL;
}
@@ -635,9 +825,15 @@ static int __init eeepc_laptop_init(void)
return -ENODEV;
}
dev = acpi_get_physical_device(ehotk->device->handle);
- result = eeepc_backlight_init(dev);
- if (result)
- goto fail_backlight;
+
+ if (!acpi_video_backlight_support()) {
+ result = eeepc_backlight_init(dev);
+ if (result)
+ goto fail_backlight;
+ } else
+ printk(EEEPC_INFO "Backlight controlled by ACPI video "
+ "driver\n");
+
result = eeepc_hwmon_init(dev);
if (result)
goto fail_hwmon;
diff --git a/drivers/misc/fujitsu-laptop.c b/drivers/misc/fujitsu-laptop.c
index 3e56203e494..a7dd3e9fb79 100644
--- a/drivers/misc/fujitsu-laptop.c
+++ b/drivers/misc/fujitsu-laptop.c
@@ -44,8 +44,9 @@
* Hotkeys present on certain Fujitsu laptops (eg: the S6xxx series) are
* also supported by this driver.
*
- * This driver has been tested on a Fujitsu Lifebook S6410 and S7020. It
- * should work on most P-series and S-series Lifebooks, but YMMV.
+ * This driver has been tested on a Fujitsu Lifebook S6410, S7020 and
+ * P8010. It should work on most P-series and S-series Lifebooks, but
+ * YMMV.
*
* The module parameter use_alt_lcd_levels switches between different ACPI
* brightness controls which are used by different Fujitsu laptops. In most
@@ -65,7 +66,7 @@
#include <linux/video_output.h>
#include <linux/platform_device.h>
-#define FUJITSU_DRIVER_VERSION "0.4.2"
+#define FUJITSU_DRIVER_VERSION "0.4.3"
#define FUJITSU_LCD_N_LEVELS 8
@@ -83,10 +84,10 @@
#define ACPI_VIDEO_NOTIFY_DEC_BRIGHTNESS 0x87
/* Hotkey details */
-#define LOCK_KEY 0x410 /* codes for the keys in the GIRB register */
-#define DISPLAY_KEY 0x411 /* keys are mapped to KEY_SCREENLOCK (the key with the key symbol) */
-#define ENERGY_KEY 0x412 /* KEY_MEDIA (the key with the laptop symbol, KEY_EMAIL (E key)) */
-#define REST_KEY 0x413 /* KEY_SUSPEND (R key) */
+#define KEY1_CODE 0x410 /* codes for the keys in the GIRB register */
+#define KEY2_CODE 0x411
+#define KEY3_CODE 0x412
+#define KEY4_CODE 0x413
#define MAX_HOTKEY_RINGBUFFER_SIZE 100
#define RINGBUFFERSIZE 40
@@ -123,6 +124,7 @@ struct fujitsu_t {
char phys[32];
struct backlight_device *bl_device;
struct platform_device *pf_device;
+ int keycode1, keycode2, keycode3, keycode4;
unsigned int max_brightness;
unsigned int brightness_changed;
@@ -224,7 +226,7 @@ static int set_lcd_level_alt(int level)
static int get_lcd_level(void)
{
- unsigned long state = 0;
+ unsigned long long state = 0;
acpi_status status = AE_OK;
vdbg_printk(FUJLAPTOP_DBG_TRACE, "get lcd level via GBLL\n");
@@ -246,7 +248,7 @@ static int get_lcd_level(void)
static int get_max_brightness(void)
{
- unsigned long state = 0;
+ unsigned long long state = 0;
acpi_status status = AE_OK;
vdbg_printk(FUJLAPTOP_DBG_TRACE, "get max lcd level via RBLL\n");
@@ -263,7 +265,7 @@ static int get_max_brightness(void)
static int get_lcd_level_alt(void)
{
- unsigned long state = 0;
+ unsigned long long state = 0;
acpi_status status = AE_OK;
vdbg_printk(FUJLAPTOP_DBG_TRACE, "get lcd level via GBLS\n");
@@ -384,7 +386,7 @@ static ssize_t store_lcd_level(struct device *dev,
static int get_irb(void)
{
- unsigned long state = 0;
+ unsigned long long state = 0;
acpi_status status = AE_OK;
vdbg_printk(FUJLAPTOP_DBG_TRACE, "Get irb\n");
@@ -430,7 +432,7 @@ static struct platform_driver fujitsupf_driver = {
}
};
-static int dmi_check_cb_s6410(const struct dmi_system_id *id)
+static void dmi_check_cb_common(const struct dmi_system_id *id)
{
acpi_handle handle;
int have_blnf;
@@ -452,24 +454,55 @@ static int dmi_check_cb_s6410(const struct dmi_system_id *id)
"auto-detecting disable_adjust\n");
disable_brightness_adjust = have_blnf ? 0 : 1;
}
+}
+
+static int dmi_check_cb_s6410(const struct dmi_system_id *id)
+{
+ dmi_check_cb_common(id);
+ fujitsu->keycode1 = KEY_SCREENLOCK; /* "Lock" */
+ fujitsu->keycode2 = KEY_HELP; /* "Mobility Center" */
+ return 0;
+}
+
+static int dmi_check_cb_s6420(const struct dmi_system_id *id)
+{
+ dmi_check_cb_common(id);
+ fujitsu->keycode1 = KEY_SCREENLOCK; /* "Lock" */
+ fujitsu->keycode2 = KEY_HELP; /* "Mobility Center" */
+ return 0;
+}
+
+static int dmi_check_cb_p8010(const struct dmi_system_id *id)
+{
+ dmi_check_cb_common(id);
+ fujitsu->keycode1 = KEY_HELP; /* "Support" */
+ fujitsu->keycode3 = KEY_SWITCHVIDEOMODE; /* "Presentation" */
+ fujitsu->keycode4 = KEY_WWW; /* "Internet" */
return 0;
}
-static struct dmi_system_id __initdata fujitsu_dmi_table[] = {
+static struct dmi_system_id fujitsu_dmi_table[] = {
{
- .ident = "Fujitsu Siemens",
+ .ident = "Fujitsu Siemens S6410",
.matches = {
DMI_MATCH(DMI_SYS_VENDOR, "FUJITSU SIEMENS"),
DMI_MATCH(DMI_PRODUCT_NAME, "LIFEBOOK S6410"),
},
.callback = dmi_check_cb_s6410},
{
- .ident = "FUJITSU LifeBook P8010",
+ .ident = "Fujitsu Siemens S6420",
+ .matches = {
+ DMI_MATCH(DMI_SYS_VENDOR, "FUJITSU SIEMENS"),
+ DMI_MATCH(DMI_PRODUCT_NAME, "LIFEBOOK S6420"),
+ },
+ .callback = dmi_check_cb_s6420},
+ {
+ .ident = "Fujitsu LifeBook P8010",
.matches = {
DMI_MATCH(DMI_SYS_VENDOR, "FUJITSU"),
DMI_MATCH(DMI_PRODUCT_NAME, "LifeBook P8010"),
- },
- .callback = dmi_check_cb_s6410},
+ },
+ .callback = dmi_check_cb_p8010},
{}
};
@@ -490,7 +523,7 @@ static int acpi_fujitsu_add(struct acpi_device *device)
fujitsu->acpi_handle = device->handle;
sprintf(acpi_device_name(device), "%s", ACPI_FUJITSU_DEVICE_NAME);
sprintf(acpi_device_class(device), "%s", ACPI_FUJITSU_CLASS);
- acpi_driver_data(device) = fujitsu;
+ device->driver_data = fujitsu;
status = acpi_install_notify_handler(device->handle,
ACPI_DEVICE_NOTIFY,
@@ -547,7 +580,6 @@ static int acpi_fujitsu_add(struct acpi_device *device)
}
/* do config (detect defaults) */
- dmi_check_system(fujitsu_dmi_table);
use_alt_lcd_levels = use_alt_lcd_levels == 1 ? 1 : 0;
disable_brightness_keys = disable_brightness_keys == 1 ? 1 : 0;
disable_brightness_adjust = disable_brightness_adjust == 1 ? 1 : 0;
@@ -623,17 +655,17 @@ static void acpi_fujitsu_notify(acpi_handle handle, u32 event, void *data)
keycode = 0;
if (disable_brightness_keys != 1) {
if (oldb == 0) {
- acpi_bus_generate_proc_event(fujitsu->
- dev,
- ACPI_VIDEO_NOTIFY_DEC_BRIGHTNESS,
- 0);
+ acpi_bus_generate_proc_event
+ (fujitsu->dev,
+ ACPI_VIDEO_NOTIFY_DEC_BRIGHTNESS,
+ 0);
keycode = KEY_BRIGHTNESSDOWN;
} else if (oldb ==
(fujitsu->max_brightness) - 1) {
- acpi_bus_generate_proc_event(fujitsu->
- dev,
- ACPI_VIDEO_NOTIFY_INC_BRIGHTNESS,
- 0);
+ acpi_bus_generate_proc_event
+ (fujitsu->dev,
+ ACPI_VIDEO_NOTIFY_INC_BRIGHTNESS,
+ 0);
keycode = KEY_BRIGHTNESSUP;
}
}
@@ -646,8 +678,7 @@ static void acpi_fujitsu_notify(acpi_handle handle, u32 event, void *data)
}
if (disable_brightness_keys != 1) {
acpi_bus_generate_proc_event(fujitsu->dev,
- ACPI_VIDEO_NOTIFY_INC_BRIGHTNESS,
- 0);
+ ACPI_VIDEO_NOTIFY_INC_BRIGHTNESS, 0);
keycode = KEY_BRIGHTNESSUP;
}
} else if (oldb > newb) {
@@ -659,8 +690,7 @@ static void acpi_fujitsu_notify(acpi_handle handle, u32 event, void *data)
}
if (disable_brightness_keys != 1) {
acpi_bus_generate_proc_event(fujitsu->dev,
- ACPI_VIDEO_NOTIFY_DEC_BRIGHTNESS,
- 0);
+ ACPI_VIDEO_NOTIFY_DEC_BRIGHTNESS, 0);
keycode = KEY_BRIGHTNESSDOWN;
}
} else {
@@ -703,7 +733,7 @@ static int acpi_fujitsu_hotkey_add(struct acpi_device *device)
sprintf(acpi_device_name(device), "%s",
ACPI_FUJITSU_HOTKEY_DEVICE_NAME);
sprintf(acpi_device_class(device), "%s", ACPI_FUJITSU_CLASS);
- acpi_driver_data(device) = fujitsu_hotkey;
+ device->driver_data = fujitsu_hotkey;
status = acpi_install_notify_handler(device->handle,
ACPI_DEVICE_NOTIFY,
@@ -742,10 +772,10 @@ static int acpi_fujitsu_hotkey_add(struct acpi_device *device)
input->id.product = 0x06;
input->dev.parent = &device->dev;
input->evbit[0] = BIT(EV_KEY);
- set_bit(KEY_SCREENLOCK, input->keybit);
- set_bit(KEY_MEDIA, input->keybit);
- set_bit(KEY_EMAIL, input->keybit);
- set_bit(KEY_SUSPEND, input->keybit);
+ set_bit(fujitsu->keycode1, input->keybit);
+ set_bit(fujitsu->keycode2, input->keybit);
+ set_bit(fujitsu->keycode3, input->keybit);
+ set_bit(fujitsu->keycode4, input->keybit);
set_bit(KEY_UNKNOWN, input->keybit);
error = input_register_device(input);
@@ -833,24 +863,24 @@ static void acpi_fujitsu_hotkey_notify(acpi_handle handle, u32 event,
irb);
switch (irb & 0x4ff) {
- case LOCK_KEY:
- keycode = KEY_SCREENLOCK;
+ case KEY1_CODE:
+ keycode = fujitsu->keycode1;
break;
- case DISPLAY_KEY:
- keycode = KEY_MEDIA;
+ case KEY2_CODE:
+ keycode = fujitsu->keycode2;
break;
- case ENERGY_KEY:
- keycode = KEY_EMAIL;
+ case KEY3_CODE:
+ keycode = fujitsu->keycode3;
break;
- case REST_KEY:
- keycode = KEY_SUSPEND;
+ case KEY4_CODE:
+ keycode = fujitsu->keycode4;
break;
case 0:
keycode = 0;
break;
default:
vdbg_printk(FUJLAPTOP_DBG_WARN,
- "Unknown GIRB result [%x]\n", irb);
+ "Unknown GIRB result [%x]\n", irb);
keycode = -1;
break;
}
@@ -859,12 +889,12 @@ static void acpi_fujitsu_hotkey_notify(acpi_handle handle, u32 event,
"Push keycode into ringbuffer [%d]\n",
keycode);
status = kfifo_put(fujitsu_hotkey->fifo,
- (unsigned char *)&keycode,
- sizeof(keycode));
+ (unsigned char *)&keycode,
+ sizeof(keycode));
if (status != sizeof(keycode)) {
vdbg_printk(FUJLAPTOP_DBG_WARN,
- "Could not push keycode [0x%x]\n",
- keycode);
+ "Could not push keycode [0x%x]\n",
+ keycode);
} else {
input_report_key(input, keycode, 1);
input_sync(input);
@@ -879,8 +909,8 @@ static void acpi_fujitsu_hotkey_notify(acpi_handle handle, u32 event,
input_report_key(input, keycode_r, 0);
input_sync(input);
vdbg_printk(FUJLAPTOP_DBG_TRACE,
- "Pop keycode from ringbuffer [%d]\n",
- keycode_r);
+ "Pop keycode from ringbuffer [%d]\n",
+ keycode_r);
}
}
}
@@ -943,6 +973,11 @@ static int __init fujitsu_init(void)
if (!fujitsu)
return -ENOMEM;
memset(fujitsu, 0, sizeof(struct fujitsu_t));
+ fujitsu->keycode1 = KEY_PROG1;
+ fujitsu->keycode2 = KEY_PROG2;
+ fujitsu->keycode3 = KEY_PROG3;
+ fujitsu->keycode4 = KEY_PROG4;
+ dmi_check_system(fujitsu_dmi_table);
result = acpi_bus_register_driver(&acpi_fujitsu_driver);
if (result < 0) {
@@ -970,16 +1005,16 @@ static int __init fujitsu_init(void)
/* Register backlight stuff */
- fujitsu->bl_device =
- backlight_device_register("fujitsu-laptop", NULL, NULL,
- &fujitsubl_ops);
- if (IS_ERR(fujitsu->bl_device))
- return PTR_ERR(fujitsu->bl_device);
-
- max_brightness = fujitsu->max_brightness;
-
- fujitsu->bl_device->props.max_brightness = max_brightness - 1;
- fujitsu->bl_device->props.brightness = fujitsu->brightness_level;
+ if (!acpi_video_backlight_support()) {
+ fujitsu->bl_device =
+ backlight_device_register("fujitsu-laptop", NULL, NULL,
+ &fujitsubl_ops);
+ if (IS_ERR(fujitsu->bl_device))
+ return PTR_ERR(fujitsu->bl_device);
+ max_brightness = fujitsu->max_brightness;
+ fujitsu->bl_device->props.max_brightness = max_brightness - 1;
+ fujitsu->bl_device->props.brightness = fujitsu->brightness_level;
+ }
ret = platform_driver_register(&fujitsupf_driver);
if (ret)
@@ -1015,7 +1050,8 @@ fail_hotkey:
fail_backlight:
- backlight_device_unregister(fujitsu->bl_device);
+ if (fujitsu->bl_device)
+ backlight_device_unregister(fujitsu->bl_device);
fail_platform_device2:
@@ -1042,7 +1078,8 @@ static void __exit fujitsu_cleanup(void)
&fujitsupf_attribute_group);
platform_device_unregister(fujitsu->pf_device);
platform_driver_unregister(&fujitsupf_driver);
- backlight_device_unregister(fujitsu->bl_device);
+ if (fujitsu->bl_device)
+ backlight_device_unregister(fujitsu->bl_device);
acpi_bus_unregister_driver(&acpi_fujitsu_driver);
@@ -1076,15 +1113,14 @@ MODULE_DESCRIPTION("Fujitsu laptop extras support");
MODULE_VERSION(FUJITSU_DRIVER_VERSION);
MODULE_LICENSE("GPL");
-MODULE_ALIAS
- ("dmi:*:svnFUJITSUSIEMENS:*:pvr:rvnFUJITSU:rnFJNB1D3:*:cvrS6410:*");
-MODULE_ALIAS
- ("dmi:*:svnFUJITSU:*:pvr:rvnFUJITSU:rnFJNB19C:*:cvrS7020:*");
+MODULE_ALIAS("dmi:*:svnFUJITSUSIEMENS:*:pvr:rvnFUJITSU:rnFJNB1D3:*:cvrS6410:*");
+MODULE_ALIAS("dmi:*:svnFUJITSU:*:pvr:rvnFUJITSU:rnFJNB19C:*:cvrS7020:*");
static struct pnp_device_id pnp_ids[] = {
- { .id = "FUJ02bf" },
- { .id = "FUJ02B1" },
- { .id = "FUJ02E3" },
- { .id = "" }
+ {.id = "FUJ02bf"},
+ {.id = "FUJ02B1"},
+ {.id = "FUJ02E3"},
+ {.id = ""}
};
+
MODULE_DEVICE_TABLE(pnp, pnp_ids);
diff --git a/drivers/misc/hdpuftrs/hdpu_nexus.c b/drivers/misc/hdpuftrs/hdpu_nexus.c
index 08e26beefe6..ce39fa54949 100644
--- a/drivers/misc/hdpuftrs/hdpu_nexus.c
+++ b/drivers/misc/hdpuftrs/hdpu_nexus.c
@@ -113,7 +113,6 @@ static int hdpu_nexus_probe(struct platform_device *pdev)
if (!hdpu_chassis_id)
printk(KERN_WARNING "sky_nexus: "
"Unable to create proc dir entry: sky_chassis_id\n");
- }
return 0;
}
diff --git a/drivers/misc/ics932s401.c b/drivers/misc/ics932s401.c
new file mode 100644
index 00000000000..6e43ab4231a
--- /dev/null
+++ b/drivers/misc/ics932s401.c
@@ -0,0 +1,515 @@
+/*
+ * A driver for the Integrated Circuits ICS932S401
+ * Copyright (C) 2008 IBM
+ *
+ * Author: Darrick J. Wong <djwong@us.ibm.com>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ */
+
+#include <linux/module.h>
+#include <linux/jiffies.h>
+#include <linux/i2c.h>
+#include <linux/err.h>
+#include <linux/mutex.h>
+#include <linux/delay.h>
+#include <linux/log2.h>
+
+/* Addresses to scan */
+static const unsigned short normal_i2c[] = { 0x69, I2C_CLIENT_END };
+
+/* Insmod parameters */
+I2C_CLIENT_INSMOD_1(ics932s401);
+
+/* ICS932S401 registers */
+#define ICS932S401_REG_CFG2 0x01
+#define ICS932S401_CFG1_SPREAD 0x01
+#define ICS932S401_REG_CFG7 0x06
+#define ICS932S401_FS_MASK 0x07
+#define ICS932S401_REG_VENDOR_REV 0x07
+#define ICS932S401_VENDOR 1
+#define ICS932S401_VENDOR_MASK 0x0F
+#define ICS932S401_REV 4
+#define ICS932S401_REV_SHIFT 4
+#define ICS932S401_REG_DEVICE 0x09
+#define ICS932S401_DEVICE 11
+#define ICS932S401_REG_CTRL 0x0A
+#define ICS932S401_MN_ENABLED 0x80
+#define ICS932S401_CPU_ALT 0x04
+#define ICS932S401_SRC_ALT 0x08
+#define ICS932S401_REG_CPU_M_CTRL 0x0B
+#define ICS932S401_M_MASK 0x3F
+#define ICS932S401_REG_CPU_N_CTRL 0x0C
+#define ICS932S401_REG_CPU_SPREAD1 0x0D
+#define ICS932S401_REG_CPU_SPREAD2 0x0E
+#define ICS932S401_SPREAD_MASK 0x7FFF
+#define ICS932S401_REG_SRC_M_CTRL 0x0F
+#define ICS932S401_REG_SRC_N_CTRL 0x10
+#define ICS932S401_REG_SRC_SPREAD1 0x11
+#define ICS932S401_REG_SRC_SPREAD2 0x12
+#define ICS932S401_REG_CPU_DIVISOR 0x13
+#define ICS932S401_CPU_DIVISOR_SHIFT 4
+#define ICS932S401_REG_PCISRC_DIVISOR 0x14
+#define ICS932S401_SRC_DIVISOR_MASK 0x0F
+#define ICS932S401_PCI_DIVISOR_SHIFT 4
+
+/* Base clock is 14.318MHz */
+#define BASE_CLOCK 14318
+
+#define NUM_REGS 21
+#define NUM_MIRRORED_REGS 15
+
+static int regs_to_copy[NUM_MIRRORED_REGS] = {
+ ICS932S401_REG_CFG2,
+ ICS932S401_REG_CFG7,
+ ICS932S401_REG_VENDOR_REV,
+ ICS932S401_REG_DEVICE,
+ ICS932S401_REG_CTRL,
+ ICS932S401_REG_CPU_M_CTRL,
+ ICS932S401_REG_CPU_N_CTRL,
+ ICS932S401_REG_CPU_SPREAD1,
+ ICS932S401_REG_CPU_SPREAD2,
+ ICS932S401_REG_SRC_M_CTRL,
+ ICS932S401_REG_SRC_N_CTRL,
+ ICS932S401_REG_SRC_SPREAD1,
+ ICS932S401_REG_SRC_SPREAD2,
+ ICS932S401_REG_CPU_DIVISOR,
+ ICS932S401_REG_PCISRC_DIVISOR,
+};
+
+/* How often do we reread sensors values? (In jiffies) */
+#define SENSOR_REFRESH_INTERVAL (2 * HZ)
+
+/* How often do we reread sensor limit values? (In jiffies) */
+#define LIMIT_REFRESH_INTERVAL (60 * HZ)
+
+struct ics932s401_data {
+ struct attribute_group attrs;
+ struct mutex lock;
+ char sensors_valid;
+ unsigned long sensors_last_updated; /* In jiffies */
+
+ u8 regs[NUM_REGS];
+};
+
+static int ics932s401_probe(struct i2c_client *client,
+ const struct i2c_device_id *id);
+static int ics932s401_detect(struct i2c_client *client, int kind,
+ struct i2c_board_info *info);
+static int ics932s401_remove(struct i2c_client *client);
+
+static const struct i2c_device_id ics932s401_id[] = {
+ { "ics932s401", ics932s401 },
+ { }
+};
+MODULE_DEVICE_TABLE(i2c, ics932s401_id);
+
+static struct i2c_driver ics932s401_driver = {
+ .class = I2C_CLASS_HWMON,
+ .driver = {
+ .name = "ics932s401",
+ },
+ .probe = ics932s401_probe,
+ .remove = ics932s401_remove,
+ .id_table = ics932s401_id,
+ .detect = ics932s401_detect,
+ .address_data = &addr_data,
+};
+
+static struct ics932s401_data *ics932s401_update_device(struct device *dev)
+{
+ struct i2c_client *client = to_i2c_client(dev);
+ struct ics932s401_data *data = i2c_get_clientdata(client);
+ unsigned long local_jiffies = jiffies;
+ int i, temp;
+
+ mutex_lock(&data->lock);
+ if (time_before(local_jiffies, data->sensors_last_updated +
+ SENSOR_REFRESH_INTERVAL)
+ && data->sensors_valid)
+ goto out;
+
+ /*
+ * Each register must be read as a word and then right shifted 8 bits.
+ * Not really sure why this is; setting the "byte count programming"
+ * register to 1 does not fix this problem.
+ */
+ for (i = 0; i < NUM_MIRRORED_REGS; i++) {
+ temp = i2c_smbus_read_word_data(client, regs_to_copy[i]);
+ data->regs[regs_to_copy[i]] = temp >> 8;
+ }
+
+ data->sensors_last_updated = local_jiffies;
+ data->sensors_valid = 1;
+
+out:
+ mutex_unlock(&data->lock);
+ return data;
+}
+
+static ssize_t show_spread_enabled(struct device *dev,
+ struct device_attribute *devattr,
+ char *buf)
+{
+ struct ics932s401_data *data = ics932s401_update_device(dev);
+
+ if (data->regs[ICS932S401_REG_CFG2] & ICS932S401_CFG1_SPREAD)
+ return sprintf(buf, "1\n");
+
+ return sprintf(buf, "0\n");
+}
+
+/* bit to cpu khz map */
+static const int fs_speeds[] = {
+ 266666,
+ 133333,
+ 200000,
+ 166666,
+ 333333,
+ 100000,
+ 400000,
+ 0,
+};
+
+/* clock divisor map */
+static const int divisors[] = {2, 3, 5, 15, 4, 6, 10, 30, 8, 12, 20, 60, 16,
+ 24, 40, 120};
+
+/* Calculate CPU frequency from the M/N registers. */
+static int calculate_cpu_freq(struct ics932s401_data *data)
+{
+ int m, n, freq;
+
+ m = data->regs[ICS932S401_REG_CPU_M_CTRL] & ICS932S401_M_MASK;
+ n = data->regs[ICS932S401_REG_CPU_N_CTRL];
+
+ /* Pull in bits 8 & 9 from the M register */
+ n |= ((int)data->regs[ICS932S401_REG_CPU_M_CTRL] & 0x80) << 1;
+ n |= ((int)data->regs[ICS932S401_REG_CPU_M_CTRL] & 0x40) << 3;
+
+ freq = BASE_CLOCK * (n + 8) / (m + 2);
+ freq /= divisors[data->regs[ICS932S401_REG_CPU_DIVISOR] >>
+ ICS932S401_CPU_DIVISOR_SHIFT];
+
+ return freq;
+}
+
+static ssize_t show_cpu_clock(struct device *dev,
+ struct device_attribute *devattr,
+ char *buf)
+{
+ struct ics932s401_data *data = ics932s401_update_device(dev);
+
+ return sprintf(buf, "%d\n", calculate_cpu_freq(data));
+}
+
+static ssize_t show_cpu_clock_sel(struct device *dev,
+ struct device_attribute *devattr,
+ char *buf)
+{
+ struct ics932s401_data *data = ics932s401_update_device(dev);
+ int freq;
+
+ if (data->regs[ICS932S401_REG_CTRL] & ICS932S401_MN_ENABLED)
+ freq = calculate_cpu_freq(data);
+ else {
+ /* Freq is neatly wrapped up for us */
+ int fid = data->regs[ICS932S401_REG_CFG7] & ICS932S401_FS_MASK;
+ freq = fs_speeds[fid];
+ if (data->regs[ICS932S401_REG_CTRL] & ICS932S401_CPU_ALT) {
+ switch (freq) {
+ case 166666:
+ freq = 160000;
+ break;
+ case 333333:
+ freq = 320000;
+ break;
+ }
+ }
+ }
+
+ return sprintf(buf, "%d\n", freq);
+}
+
+/* Calculate SRC frequency from the M/N registers. */
+static int calculate_src_freq(struct ics932s401_data *data)
+{
+ int m, n, freq;
+
+ m = data->regs[ICS932S401_REG_SRC_M_CTRL] & ICS932S401_M_MASK;
+ n = data->regs[ICS932S401_REG_SRC_N_CTRL];
+
+ /* Pull in bits 8 & 9 from the M register */
+ n |= ((int)data->regs[ICS932S401_REG_SRC_M_CTRL] & 0x80) << 1;
+ n |= ((int)data->regs[ICS932S401_REG_SRC_M_CTRL] & 0x40) << 3;
+
+ freq = BASE_CLOCK * (n + 8) / (m + 2);
+ freq /= divisors[data->regs[ICS932S401_REG_PCISRC_DIVISOR] &
+ ICS932S401_SRC_DIVISOR_MASK];
+
+ return freq;
+}
+
+static ssize_t show_src_clock(struct device *dev,
+ struct device_attribute *devattr,
+ char *buf)
+{
+ struct ics932s401_data *data = ics932s401_update_device(dev);
+
+ return sprintf(buf, "%d\n", calculate_src_freq(data));
+}
+
+static ssize_t show_src_clock_sel(struct device *dev,
+ struct device_attribute *devattr,
+ char *buf)
+{
+ struct ics932s401_data *data = ics932s401_update_device(dev);
+ int freq;
+
+ if (data->regs[ICS932S401_REG_CTRL] & ICS932S401_MN_ENABLED)
+ freq = calculate_src_freq(data);
+ else
+ /* Freq is neatly wrapped up for us */
+ if (data->regs[ICS932S401_REG_CTRL] & ICS932S401_CPU_ALT &&
+ data->regs[ICS932S401_REG_CTRL] & ICS932S401_SRC_ALT)
+ freq = 96000;
+ else
+ freq = 100000;
+
+ return sprintf(buf, "%d\n", freq);
+}
+
+/* Calculate PCI frequency from the SRC M/N registers. */
+static int calculate_pci_freq(struct ics932s401_data *data)
+{
+ int m, n, freq;
+
+ m = data->regs[ICS932S401_REG_SRC_M_CTRL] & ICS932S401_M_MASK;
+ n = data->regs[ICS932S401_REG_SRC_N_CTRL];
+
+ /* Pull in bits 8 & 9 from the M register */
+ n |= ((int)data->regs[ICS932S401_REG_SRC_M_CTRL] & 0x80) << 1;
+ n |= ((int)data->regs[ICS932S401_REG_SRC_M_CTRL] & 0x40) << 3;
+
+ freq = BASE_CLOCK * (n + 8) / (m + 2);
+ freq /= divisors[data->regs[ICS932S401_REG_PCISRC_DIVISOR] >>
+ ICS932S401_PCI_DIVISOR_SHIFT];
+
+ return freq;
+}
+
+static ssize_t show_pci_clock(struct device *dev,
+ struct device_attribute *devattr,
+ char *buf)
+{
+ struct ics932s401_data *data = ics932s401_update_device(dev);
+
+ return sprintf(buf, "%d\n", calculate_pci_freq(data));
+}
+
+static ssize_t show_pci_clock_sel(struct device *dev,
+ struct device_attribute *devattr,
+ char *buf)
+{
+ struct ics932s401_data *data = ics932s401_update_device(dev);
+ int freq;
+
+ if (data->regs[ICS932S401_REG_CTRL] & ICS932S401_MN_ENABLED)
+ freq = calculate_pci_freq(data);
+ else
+ freq = 33333;
+
+ return sprintf(buf, "%d\n", freq);
+}
+
+static ssize_t show_value(struct device *dev,
+ struct device_attribute *devattr,
+ char *buf);
+
+static ssize_t show_spread(struct device *dev,
+ struct device_attribute *devattr,
+ char *buf);
+
+static DEVICE_ATTR(spread_enabled, S_IRUGO, show_spread_enabled, NULL);
+static DEVICE_ATTR(cpu_clock_selection, S_IRUGO, show_cpu_clock_sel, NULL);
+static DEVICE_ATTR(cpu_clock, S_IRUGO, show_cpu_clock, NULL);
+static DEVICE_ATTR(src_clock_selection, S_IRUGO, show_src_clock_sel, NULL);
+static DEVICE_ATTR(src_clock, S_IRUGO, show_src_clock, NULL);
+static DEVICE_ATTR(pci_clock_selection, S_IRUGO, show_pci_clock_sel, NULL);
+static DEVICE_ATTR(pci_clock, S_IRUGO, show_pci_clock, NULL);
+static DEVICE_ATTR(usb_clock, S_IRUGO, show_value, NULL);
+static DEVICE_ATTR(ref_clock, S_IRUGO, show_value, NULL);
+static DEVICE_ATTR(cpu_spread, S_IRUGO, show_spread, NULL);
+static DEVICE_ATTR(src_spread, S_IRUGO, show_spread, NULL);
+
+static struct attribute *ics932s401_attr[] =
+{
+ &dev_attr_spread_enabled.attr,
+ &dev_attr_cpu_clock_selection.attr,
+ &dev_attr_cpu_clock.attr,
+ &dev_attr_src_clock_selection.attr,
+ &dev_attr_src_clock.attr,
+ &dev_attr_pci_clock_selection.attr,
+ &dev_attr_pci_clock.attr,
+ &dev_attr_usb_clock.attr,
+ &dev_attr_ref_clock.attr,
+ &dev_attr_cpu_spread.attr,
+ &dev_attr_src_spread.attr,
+ NULL
+};
+
+static ssize_t show_value(struct device *dev,
+ struct device_attribute *devattr,
+ char *buf)
+{
+ int x;
+
+ if (devattr == &dev_attr_usb_clock)
+ x = 48000;
+ else if (devattr == &dev_attr_ref_clock)
+ x = BASE_CLOCK;
+ else
+ BUG();
+
+ return sprintf(buf, "%d\n", x);
+}
+
+static ssize_t show_spread(struct device *dev,
+ struct device_attribute *devattr,
+ char *buf)
+{
+ struct ics932s401_data *data = ics932s401_update_device(dev);
+ int reg;
+ unsigned long val;
+
+ if (!(data->regs[ICS932S401_REG_CFG2] & ICS932S401_CFG1_SPREAD))
+ return sprintf(buf, "0%%\n");
+
+ if (devattr == &dev_attr_src_spread)
+ reg = ICS932S401_REG_SRC_SPREAD1;
+ else if (devattr == &dev_attr_cpu_spread)
+ reg = ICS932S401_REG_CPU_SPREAD1;
+ else
+ BUG();
+
+ val = data->regs[reg] | (data->regs[reg + 1] << 8);
+ val &= ICS932S401_SPREAD_MASK;
+
+ /* Scale 0..2^14 to -0.5. */
+ val = 500000 * val / 16384;
+ return sprintf(buf, "-0.%lu%%\n", val);
+}
+
+/* Return 0 if detection is successful, -ENODEV otherwise */
+static int ics932s401_detect(struct i2c_client *client, int kind,
+ struct i2c_board_info *info)
+{
+ struct i2c_adapter *adapter = client->adapter;
+
+ if (!i2c_check_functionality(adapter, I2C_FUNC_SMBUS_BYTE_DATA))
+ return -ENODEV;
+
+ if (kind <= 0) {
+ int vendor, device, revision;
+
+ vendor = i2c_smbus_read_word_data(client,
+ ICS932S401_REG_VENDOR_REV);
+ vendor >>= 8;
+ revision = vendor >> ICS932S401_REV_SHIFT;
+ vendor &= ICS932S401_VENDOR_MASK;
+ if (vendor != ICS932S401_VENDOR)
+ return -ENODEV;
+
+ device = i2c_smbus_read_word_data(client,
+ ICS932S401_REG_DEVICE);
+ device >>= 8;
+ if (device != ICS932S401_DEVICE)
+ return -ENODEV;
+
+ if (revision != ICS932S401_REV)
+ dev_info(&adapter->dev, "Unknown revision %d\n",
+ revision);
+ } else
+ dev_dbg(&adapter->dev, "detection forced\n");
+
+ strlcpy(info->type, "ics932s401", I2C_NAME_SIZE);
+
+ return 0;
+}
+
+static int ics932s401_probe(struct i2c_client *client,
+ const struct i2c_device_id *id)
+{
+ struct ics932s401_data *data;
+ int err;
+
+ data = kzalloc(sizeof(struct ics932s401_data), GFP_KERNEL);
+ if (!data) {
+ err = -ENOMEM;
+ goto exit;
+ }
+
+ i2c_set_clientdata(client, data);
+ mutex_init(&data->lock);
+
+ dev_info(&client->dev, "%s chip found\n", client->name);
+
+ /* Register sysfs hooks */
+ data->attrs.attrs = ics932s401_attr;
+ err = sysfs_create_group(&client->dev.kobj, &data->attrs);
+ if (err)
+ goto exit_free;
+
+ return 0;
+
+exit_free:
+ kfree(data);
+exit:
+ return err;
+}
+
+static int ics932s401_remove(struct i2c_client *client)
+{
+ struct ics932s401_data *data = i2c_get_clientdata(client);
+
+ sysfs_remove_group(&client->dev.kobj, &data->attrs);
+ kfree(data);
+ return 0;
+}
+
+static int __init ics932s401_init(void)
+{
+ return i2c_add_driver(&ics932s401_driver);
+}
+
+static void __exit ics932s401_exit(void)
+{
+ i2c_del_driver(&ics932s401_driver);
+}
+
+MODULE_AUTHOR("Darrick J. Wong <djwong@us.ibm.com>");
+MODULE_DESCRIPTION("ICS932S401 driver");
+MODULE_LICENSE("GPL");
+
+module_init(ics932s401_init);
+module_exit(ics932s401_exit);
+
+/* IBM IntelliStation Z30 */
+MODULE_ALIAS("dmi:bvnIBM:*:rn9228:*");
+MODULE_ALIAS("dmi:bvnIBM:*:rn9232:*");
+
+/* IBM x3650/x3550 */
+MODULE_ALIAS("dmi:bvnIBM:*:pnIBMSystemx3650*");
+MODULE_ALIAS("dmi:bvnIBM:*:pnIBMSystemx3550*");
diff --git a/drivers/misc/intel_menlow.c b/drivers/misc/intel_menlow.c
index 80a13635240..27b7662955b 100644
--- a/drivers/misc/intel_menlow.c
+++ b/drivers/misc/intel_menlow.c
@@ -52,12 +52,17 @@ MODULE_LICENSE("GPL");
#define MEMORY_ARG_CUR_BANDWIDTH 1
#define MEMORY_ARG_MAX_BANDWIDTH 0
+/*
+ * GTHS returning 'n' would mean that [0,n-1] states are supported
+ * In that case max_cstate would be n-1
+ * GTHS returning '0' would mean that no bandwidth control states are supported
+ */
static int memory_get_int_max_bandwidth(struct thermal_cooling_device *cdev,
unsigned long *max_state)
{
struct acpi_device *device = cdev->devdata;
acpi_handle handle = device->handle;
- unsigned long value;
+ unsigned long long value;
struct acpi_object_list arg_list;
union acpi_object arg;
acpi_status status = AE_OK;
@@ -71,6 +76,9 @@ static int memory_get_int_max_bandwidth(struct thermal_cooling_device *cdev,
if (ACPI_FAILURE(status))
return -EFAULT;
+ if (!value)
+ return -EINVAL;
+
*max_state = value - 1;
return 0;
}
@@ -90,7 +98,7 @@ static int memory_get_cur_bandwidth(struct thermal_cooling_device *cdev,
{
struct acpi_device *device = cdev->devdata;
acpi_handle handle = device->handle;
- unsigned long value;
+ unsigned long long value;
struct acpi_object_list arg_list;
union acpi_object arg;
acpi_status status = AE_OK;
@@ -104,7 +112,7 @@ static int memory_get_cur_bandwidth(struct thermal_cooling_device *cdev,
if (ACPI_FAILURE(status))
return -EFAULT;
- return sprintf(buf, "%ld\n", value);
+ return sprintf(buf, "%llu\n", value);
}
static int memory_set_cur_bandwidth(struct thermal_cooling_device *cdev,
@@ -115,13 +123,13 @@ static int memory_set_cur_bandwidth(struct thermal_cooling_device *cdev,
struct acpi_object_list arg_list;
union acpi_object arg;
acpi_status status;
- int temp;
+ unsigned long long temp;
unsigned long max_state;
if (memory_get_int_max_bandwidth(cdev, &max_state))
return -EFAULT;
- if (max_state < 0 || state > max_state)
+ if (state > max_state)
return -EINVAL;
arg_list.count = 1;
@@ -131,7 +139,7 @@ static int memory_set_cur_bandwidth(struct thermal_cooling_device *cdev,
status =
acpi_evaluate_integer(handle, MEMORY_SET_BANDWIDTH, &arg_list,
- (unsigned long *)&temp);
+ &temp);
printk(KERN_INFO
"Bandwidth value was %d: status is %d\n", state, status);
@@ -175,7 +183,7 @@ static int intel_menlow_memory_add(struct acpi_device *device)
goto end;
}
- acpi_driver_data(device) = cdev;
+ device->driver_data = cdev;
result = sysfs_create_link(&device->dev.kobj,
&cdev->device.kobj, "thermal_cooling");
if (result)
@@ -252,7 +260,8 @@ static DEFINE_MUTEX(intel_menlow_attr_lock);
* @auxtype : AUX0/AUX1
* @buf: syfs buffer
*/
-static int sensor_get_auxtrip(acpi_handle handle, int index, int *value)
+static int sensor_get_auxtrip(acpi_handle handle, int index,
+ unsigned long long *value)
{
acpi_status status;
@@ -260,7 +269,7 @@ static int sensor_get_auxtrip(acpi_handle handle, int index, int *value)
return -EINVAL;
status = acpi_evaluate_integer(handle, index ? GET_AUX1 : GET_AUX0,
- NULL, (unsigned long *)value);
+ NULL, value);
if (ACPI_FAILURE(status))
return -EIO;
@@ -282,13 +291,13 @@ static int sensor_set_auxtrip(acpi_handle handle, int index, int value)
struct acpi_object_list args = {
1, &arg
};
- int temp;
+ unsigned long long temp;
if (index != 0 && index != 1)
return -EINVAL;
status = acpi_evaluate_integer(handle, index ? GET_AUX0 : GET_AUX1,
- NULL, (unsigned long *)&temp);
+ NULL, &temp);
if (ACPI_FAILURE(status))
return -EIO;
if ((index && value < temp) || (!index && value > temp))
@@ -296,7 +305,7 @@ static int sensor_set_auxtrip(acpi_handle handle, int index, int value)
arg.integer.value = value;
status = acpi_evaluate_integer(handle, index ? SET_AUX1 : SET_AUX0,
- &args, (unsigned long *)&temp);
+ &args, &temp);
if (ACPI_FAILURE(status))
return -EIO;
@@ -312,7 +321,7 @@ static ssize_t aux0_show(struct device *dev,
struct device_attribute *dev_attr, char *buf)
{
struct intel_menlow_attribute *attr = to_intel_menlow_attr(dev_attr);
- int value;
+ unsigned long long value;
int result;
result = sensor_get_auxtrip(attr->handle, 0, &value);
@@ -324,7 +333,7 @@ static ssize_t aux1_show(struct device *dev,
struct device_attribute *dev_attr, char *buf)
{
struct intel_menlow_attribute *attr = to_intel_menlow_attr(dev_attr);
- int value;
+ unsigned long long value;
int result;
result = sensor_get_auxtrip(attr->handle, 1, &value);
@@ -376,7 +385,7 @@ static ssize_t bios_enabled_show(struct device *dev,
struct device_attribute *attr, char *buf)
{
acpi_status status;
- unsigned long bios_enabled;
+ unsigned long long bios_enabled;
status = acpi_evaluate_integer(NULL, BIOS_ENABLED, NULL, &bios_enabled);
if (ACPI_FAILURE(status))
@@ -492,7 +501,7 @@ static int __init intel_menlow_module_init(void)
{
int result = -ENODEV;
acpi_status status;
- unsigned long enable;
+ unsigned long long enable;
if (acpi_disabled)
return result;
diff --git a/drivers/misc/msi-laptop.c b/drivers/misc/msi-laptop.c
index de898c6938f..759763d18e4 100644
--- a/drivers/misc/msi-laptop.c
+++ b/drivers/misc/msi-laptop.c
@@ -347,12 +347,16 @@ static int __init msi_init(void)
/* Register backlight stuff */
- msibl_device = backlight_device_register("msi-laptop-bl", NULL, NULL,
- &msibl_ops);
- if (IS_ERR(msibl_device))
- return PTR_ERR(msibl_device);
-
- msibl_device->props.max_brightness = MSI_LCD_LEVEL_MAX-1;
+ if (acpi_video_backlight_support()) {
+ printk(KERN_INFO "MSI: Brightness ignored, must be controlled "
+ "by ACPI video driver\n");
+ } else {
+ msibl_device = backlight_device_register("msi-laptop-bl", NULL,
+ NULL, &msibl_ops);
+ if (IS_ERR(msibl_device))
+ return PTR_ERR(msibl_device);
+ msibl_device->props.max_brightness = MSI_LCD_LEVEL_MAX-1;
+ }
ret = platform_driver_register(&msipf_driver);
if (ret)
diff --git a/drivers/misc/panasonic-laptop.c b/drivers/misc/panasonic-laptop.c
new file mode 100644
index 00000000000..4a1bc64485d
--- /dev/null
+++ b/drivers/misc/panasonic-laptop.c
@@ -0,0 +1,766 @@
+/*
+ * Panasonic HotKey and LCD brightness control driver
+ * (C) 2004 Hiroshi Miura <miura@da-cha.org>
+ * (C) 2004 NTT DATA Intellilink Co. http://www.intellilink.co.jp/
+ * (C) YOKOTA Hiroshi <yokota (at) netlab. is. tsukuba. ac. jp>
+ * (C) 2004 David Bronaugh <dbronaugh>
+ * (C) 2006-2008 Harald Welte <laforge@gnumonks.org>
+ *
+ * derived from toshiba_acpi.c, Copyright (C) 2002-2004 John Belmonte
+ *
+ * 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
+ * publicshed by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ *
+ *---------------------------------------------------------------------------
+ *
+ * ChangeLog:
+ * Sep.23, 2008 Harald Welte <laforge@gnumonks.org>
+ * -v0.95 rename driver from drivers/acpi/pcc_acpi.c to
+ * drivers/misc/panasonic-laptop.c
+ *
+ * Jul.04, 2008 Harald Welte <laforge@gnumonks.org>
+ * -v0.94 replace /proc interface with device attributes
+ * support {set,get}keycode on th input device
+ *
+ * Jun.27, 2008 Harald Welte <laforge@gnumonks.org>
+ * -v0.92 merge with 2.6.26-rc6 input API changes
+ * remove broken <= 2.6.15 kernel support
+ * resolve all compiler warnings
+ * various coding style fixes (checkpatch.pl)
+ * add support for backlight api
+ * major code restructuring
+ *
+ * Dac.28, 2007 Harald Welte <laforge@gnumonks.org>
+ * -v0.91 merge with 2.6.24-rc6 ACPI changes
+ *
+ * Nov.04, 2006 Hiroshi Miura <miura@da-cha.org>
+ * -v0.9 remove warning about section reference.
+ * remove acpi_os_free
+ * add /proc/acpi/pcc/brightness interface for HAL access
+ * merge dbronaugh's enhancement
+ * Aug.17, 2004 David Bronaugh (dbronaugh)
+ * - Added screen brightness setting interface
+ * Thanks to FreeBSD crew (acpi_panasonic.c)
+ * for the ideas I needed to accomplish it
+ *
+ * May.29, 2006 Hiroshi Miura <miura@da-cha.org>
+ * -v0.8.4 follow to change keyinput structure
+ * thanks Fabian Yamaguchi <fabs@cs.tu-berlin.de>,
+ * Jacob Bower <jacob.bower@ic.ac.uk> and
+ * Hiroshi Yokota for providing solutions.
+ *
+ * Oct.02, 2004 Hiroshi Miura <miura@da-cha.org>
+ * -v0.8.2 merge code of YOKOTA Hiroshi
+ * <yokota@netlab.is.tsukuba.ac.jp>.
+ * Add sticky key mode interface.
+ * Refactoring acpi_pcc_generate_keyinput().
+ *
+ * Sep.15, 2004 Hiroshi Miura <miura@da-cha.org>
+ * -v0.8 Generate key input event on input subsystem.
+ * This is based on yet another driver written by
+ * Ryuta Nakanishi.
+ *
+ * Sep.10, 2004 Hiroshi Miura <miura@da-cha.org>
+ * -v0.7 Change proc interface functions using seq_file
+ * facility as same as other ACPI drivers.
+ *
+ * Aug.28, 2004 Hiroshi Miura <miura@da-cha.org>
+ * -v0.6.4 Fix a silly error with status checking
+ *
+ * Aug.25, 2004 Hiroshi Miura <miura@da-cha.org>
+ * -v0.6.3 replace read_acpi_int by standard function
+ * acpi_evaluate_integer
+ * some clean up and make smart copyright notice.
+ * fix return value of pcc_acpi_get_key()
+ * fix checking return value of acpi_bus_register_driver()
+ *
+ * Aug.22, 2004 David Bronaugh <dbronaugh@linuxboxen.org>
+ * -v0.6.2 Add check on ACPI data (num_sifr)
+ * Coding style cleanups, better error messages/handling
+ * Fixed an off-by-one error in memory allocation
+ *
+ * Aug.21, 2004 David Bronaugh <dbronaugh@linuxboxen.org>
+ * -v0.6.1 Fix a silly error with status checking
+ *
+ * Aug.20, 2004 David Bronaugh <dbronaugh@linuxboxen.org>
+ * - v0.6 Correct brightness controls to reflect reality
+ * based on information gleaned by Hiroshi Miura
+ * and discussions with Hiroshi Miura
+ *
+ * Aug.10, 2004 Hiroshi Miura <miura@da-cha.org>
+ * - v0.5 support LCD brightness control
+ * based on the disclosed information by MEI.
+ *
+ * Jul.25, 2004 Hiroshi Miura <miura@da-cha.org>
+ * - v0.4 first post version
+ * add function to retrive SIFR
+ *
+ * Jul.24, 2004 Hiroshi Miura <miura@da-cha.org>
+ * - v0.3 get proper status of hotkey
+ *
+ * Jul.22, 2004 Hiroshi Miura <miura@da-cha.org>
+ * - v0.2 add HotKey handler
+ *
+ * Jul.17, 2004 Hiroshi Miura <miura@da-cha.org>
+ * - v0.1 start from toshiba_acpi driver written by John Belmonte
+ *
+ */
+
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/init.h>
+#include <linux/types.h>
+#include <linux/backlight.h>
+#include <linux/ctype.h>
+#include <linux/seq_file.h>
+#include <linux/uaccess.h>
+#include <acpi/acpi_bus.h>
+#include <acpi/acpi_drivers.h>
+#include <linux/input.h>
+
+
+#ifndef ACPI_HOTKEY_COMPONENT
+#define ACPI_HOTKEY_COMPONENT 0x10000000
+#endif
+
+#define _COMPONENT ACPI_HOTKEY_COMPONENT
+
+MODULE_AUTHOR("Hiroshi Miura, David Bronaugh and Harald Welte");
+MODULE_DESCRIPTION("ACPI HotKey driver for Panasonic Let's Note laptops");
+MODULE_LICENSE("GPL");
+
+#define LOGPREFIX "pcc_acpi: "
+
+/* Define ACPI PATHs */
+/* Lets note hotkeys */
+#define METHOD_HKEY_QUERY "HINF"
+#define METHOD_HKEY_SQTY "SQTY"
+#define METHOD_HKEY_SINF "SINF"
+#define METHOD_HKEY_SSET "SSET"
+#define HKEY_NOTIFY 0x80
+
+#define ACPI_PCC_DRIVER_NAME "Panasonic Laptop Support"
+#define ACPI_PCC_DEVICE_NAME "Hotkey"
+#define ACPI_PCC_CLASS "pcc"
+
+#define ACPI_PCC_INPUT_PHYS "panasonic/hkey0"
+
+/* LCD_TYPEs: 0 = Normal, 1 = Semi-transparent
+ ENV_STATEs: Normal temp=0x01, High temp=0x81, N/A=0x00
+*/
+enum SINF_BITS { SINF_NUM_BATTERIES = 0,
+ SINF_LCD_TYPE,
+ SINF_AC_MAX_BRIGHT,
+ SINF_AC_MIN_BRIGHT,
+ SINF_AC_CUR_BRIGHT,
+ SINF_DC_MAX_BRIGHT,
+ SINF_DC_MIN_BRIGHT,
+ SINF_DC_CUR_BRIGHT,
+ SINF_MUTE,
+ SINF_RESERVED,
+ SINF_ENV_STATE,
+ SINF_STICKY_KEY = 0x80,
+ };
+/* R1 handles SINF_AC_CUR_BRIGHT as SINF_CUR_BRIGHT, doesn't know AC state */
+
+static int acpi_pcc_hotkey_add(struct acpi_device *device);
+static int acpi_pcc_hotkey_remove(struct acpi_device *device, int type);
+static int acpi_pcc_hotkey_resume(struct acpi_device *device);
+
+static const struct acpi_device_id pcc_device_ids[] = {
+ { "MAT0012", 0},
+ { "MAT0013", 0},
+ { "MAT0018", 0},
+ { "MAT0019", 0},
+ { "", 0},
+};
+
+static struct acpi_driver acpi_pcc_driver = {
+ .name = ACPI_PCC_DRIVER_NAME,
+ .class = ACPI_PCC_CLASS,
+ .ids = pcc_device_ids,
+ .ops = {
+ .add = acpi_pcc_hotkey_add,
+ .remove = acpi_pcc_hotkey_remove,
+ .resume = acpi_pcc_hotkey_resume,
+ },
+};
+
+#define KEYMAP_SIZE 11
+static const int initial_keymap[KEYMAP_SIZE] = {
+ /* 0 */ KEY_RESERVED,
+ /* 1 */ KEY_BRIGHTNESSDOWN,
+ /* 2 */ KEY_BRIGHTNESSUP,
+ /* 3 */ KEY_DISPLAYTOGGLE,
+ /* 4 */ KEY_MUTE,
+ /* 5 */ KEY_VOLUMEDOWN,
+ /* 6 */ KEY_VOLUMEUP,
+ /* 7 */ KEY_SLEEP,
+ /* 8 */ KEY_PROG1, /* Change CPU boost */
+ /* 9 */ KEY_BATTERY,
+ /* 10 */ KEY_SUSPEND,
+};
+
+struct pcc_acpi {
+ acpi_handle handle;
+ unsigned long num_sifr;
+ int sticky_mode;
+ u32 *sinf;
+ struct acpi_device *device;
+ struct input_dev *input_dev;
+ struct backlight_device *backlight;
+ int keymap[KEYMAP_SIZE];
+};
+
+struct pcc_keyinput {
+ struct acpi_hotkey *hotkey;
+};
+
+/* method access functions */
+static int acpi_pcc_write_sset(struct pcc_acpi *pcc, int func, int val)
+{
+ union acpi_object in_objs[] = {
+ { .integer.type = ACPI_TYPE_INTEGER,
+ .integer.value = func, },
+ { .integer.type = ACPI_TYPE_INTEGER,
+ .integer.value = val, },
+ };
+ struct acpi_object_list params = {
+ .count = ARRAY_SIZE(in_objs),
+ .pointer = in_objs,
+ };
+ acpi_status status = AE_OK;
+
+ ACPI_FUNCTION_TRACE("acpi_pcc_write_sset");
+
+ status = acpi_evaluate_object(pcc->handle, METHOD_HKEY_SSET,
+ &params, NULL);
+
+ return status == AE_OK;
+}
+
+static inline int acpi_pcc_get_sqty(struct acpi_device *device)
+{
+ unsigned long long s;
+ acpi_status status;
+
+ ACPI_FUNCTION_TRACE("acpi_pcc_get_sqty");
+
+ status = acpi_evaluate_integer(device->handle, METHOD_HKEY_SQTY,
+ NULL, &s);
+ if (ACPI_SUCCESS(status))
+ return s;
+ else {
+ ACPI_DEBUG_PRINT((ACPI_DB_ERROR,
+ "evaluation error HKEY.SQTY\n"));
+ return -EINVAL;
+ }
+}
+
+static int acpi_pcc_retrieve_biosdata(struct pcc_acpi *pcc, u32 *sinf)
+{
+ acpi_status status;
+ struct acpi_buffer buffer = {ACPI_ALLOCATE_BUFFER, NULL};
+ union acpi_object *hkey = NULL;
+ int i;
+
+ ACPI_FUNCTION_TRACE("acpi_pcc_retrieve_biosdata");
+
+ status = acpi_evaluate_object(pcc->handle, METHOD_HKEY_SINF, 0,
+ &buffer);
+ if (ACPI_FAILURE(status)) {
+ ACPI_DEBUG_PRINT((ACPI_DB_ERROR,
+ "evaluation error HKEY.SINF\n"));
+ return 0;
+ }
+
+ hkey = buffer.pointer;
+ if (!hkey || (hkey->type != ACPI_TYPE_PACKAGE)) {
+ ACPI_DEBUG_PRINT((ACPI_DB_ERROR, "Invalid HKEY.SINF\n"));
+ goto end;
+ }
+
+ if (pcc->num_sifr < hkey->package.count) {
+ ACPI_DEBUG_PRINT((ACPI_DB_ERROR,
+ "SQTY reports bad SINF length\n"));
+ status = AE_ERROR;
+ goto end;
+ }
+
+ for (i = 0; i < hkey->package.count; i++) {
+ union acpi_object *element = &(hkey->package.elements[i]);
+ if (likely(element->type == ACPI_TYPE_INTEGER)) {
+ sinf[i] = element->integer.value;
+ } else
+ ACPI_DEBUG_PRINT((ACPI_DB_ERROR,
+ "Invalid HKEY.SINF data\n"));
+ }
+ sinf[hkey->package.count] = -1;
+
+end:
+ kfree(buffer.pointer);
+ return status == AE_OK;
+}
+
+/* backlight API interface functions */
+
+/* This driver currently treats AC and DC brightness identical,
+ * since we don't need to invent an interface to the core ACPI
+ * logic to receive events in case a power supply is plugged in
+ * or removed */
+
+static int bl_get(struct backlight_device *bd)
+{
+ struct pcc_acpi *pcc = bl_get_data(bd);
+
+ if (!acpi_pcc_retrieve_biosdata(pcc, pcc->sinf))
+ return -EIO;
+
+ return pcc->sinf[SINF_AC_CUR_BRIGHT];
+}
+
+static int bl_set_status(struct backlight_device *bd)
+{
+ struct pcc_acpi *pcc = bl_get_data(bd);
+ int bright = bd->props.brightness;
+ int rc;
+
+ if (!acpi_pcc_retrieve_biosdata(pcc, pcc->sinf))
+ return -EIO;
+
+ if (bright < pcc->sinf[SINF_AC_MIN_BRIGHT])
+ bright = pcc->sinf[SINF_AC_MIN_BRIGHT];
+
+ if (bright < pcc->sinf[SINF_DC_MIN_BRIGHT])
+ bright = pcc->sinf[SINF_DC_MIN_BRIGHT];
+
+ if (bright < pcc->sinf[SINF_AC_MIN_BRIGHT] ||
+ bright > pcc->sinf[SINF_AC_MAX_BRIGHT])
+ return -EINVAL;
+
+ rc = acpi_pcc_write_sset(pcc, SINF_AC_CUR_BRIGHT, bright);
+ if (rc < 0)
+ return rc;
+
+ return acpi_pcc_write_sset(pcc, SINF_DC_CUR_BRIGHT, bright);
+}
+
+static struct backlight_ops pcc_backlight_ops = {
+ .get_brightness = bl_get,
+ .update_status = bl_set_status,
+};
+
+
+/* sysfs user interface functions */
+
+static ssize_t show_numbatt(struct device *dev, struct device_attribute *attr,
+ char *buf)
+{
+ struct acpi_device *acpi = to_acpi_device(dev);
+ struct pcc_acpi *pcc = acpi_driver_data(acpi);
+
+ if (!acpi_pcc_retrieve_biosdata(pcc, pcc->sinf))
+ return -EIO;
+
+ return sprintf(buf, "%u\n", pcc->sinf[SINF_NUM_BATTERIES]);
+}
+
+static ssize_t show_lcdtype(struct device *dev, struct device_attribute *attr,
+ char *buf)
+{
+ struct acpi_device *acpi = to_acpi_device(dev);
+ struct pcc_acpi *pcc = acpi_driver_data(acpi);
+
+ if (!acpi_pcc_retrieve_biosdata(pcc, pcc->sinf))
+ return -EIO;
+
+ return sprintf(buf, "%u\n", pcc->sinf[SINF_LCD_TYPE]);
+}
+
+static ssize_t show_mute(struct device *dev, struct device_attribute *attr,
+ char *buf)
+{
+ struct acpi_device *acpi = to_acpi_device(dev);
+ struct pcc_acpi *pcc = acpi_driver_data(acpi);
+
+ if (!acpi_pcc_retrieve_biosdata(pcc, pcc->sinf))
+ return -EIO;
+
+ return sprintf(buf, "%u\n", pcc->sinf[SINF_MUTE]);
+}
+
+static ssize_t show_sticky(struct device *dev, struct device_attribute *attr,
+ char *buf)
+{
+ struct acpi_device *acpi = to_acpi_device(dev);
+ struct pcc_acpi *pcc = acpi_driver_data(acpi);
+
+ if (!acpi_pcc_retrieve_biosdata(pcc, pcc->sinf))
+ return -EIO;
+
+ return sprintf(buf, "%u\n", pcc->sinf[SINF_STICKY_KEY]);
+}
+
+static ssize_t set_sticky(struct device *dev, struct device_attribute *attr,
+ const char *buf, size_t count)
+{
+ struct acpi_device *acpi = to_acpi_device(dev);
+ struct pcc_acpi *pcc = acpi_driver_data(acpi);
+ int val;
+
+ if (count && sscanf(buf, "%i", &val) == 1 &&
+ (val == 0 || val == 1)) {
+ acpi_pcc_write_sset(pcc, SINF_STICKY_KEY, val);
+ pcc->sticky_mode = val;
+ }
+
+ return count;
+}
+
+static DEVICE_ATTR(numbatt, S_IRUGO, show_numbatt, NULL);
+static DEVICE_ATTR(lcdtype, S_IRUGO, show_lcdtype, NULL);
+static DEVICE_ATTR(mute, S_IRUGO, show_mute, NULL);
+static DEVICE_ATTR(sticky_key, S_IRUGO | S_IWUSR, show_sticky, set_sticky);
+
+static struct attribute *pcc_sysfs_entries[] = {
+ &dev_attr_numbatt.attr,
+ &dev_attr_lcdtype.attr,
+ &dev_attr_mute.attr,
+ &dev_attr_sticky_key.attr,
+ NULL,
+};
+
+static struct attribute_group pcc_attr_group = {
+ .name = NULL, /* put in device directory */
+ .attrs = pcc_sysfs_entries,
+};
+
+
+/* hotkey input device driver */
+
+static int pcc_getkeycode(struct input_dev *dev, int scancode, int *keycode)
+{
+ struct pcc_acpi *pcc = input_get_drvdata(dev);
+
+ if (scancode >= ARRAY_SIZE(pcc->keymap))
+ return -EINVAL;
+
+ *keycode = pcc->keymap[scancode];
+
+ return 0;
+}
+
+static int keymap_get_by_keycode(struct pcc_acpi *pcc, int keycode)
+{
+ int i;
+
+ for (i = 0; i < ARRAY_SIZE(pcc->keymap); i++) {
+ if (pcc->keymap[i] == keycode)
+ return i+1;
+ }
+
+ return 0;
+}
+
+static int pcc_setkeycode(struct input_dev *dev, int scancode, int keycode)
+{
+ struct pcc_acpi *pcc = input_get_drvdata(dev);
+ int oldkeycode;
+
+ if (scancode >= ARRAY_SIZE(pcc->keymap))
+ return -EINVAL;
+
+ if (keycode < 0 || keycode > KEY_MAX)
+ return -EINVAL;
+
+ oldkeycode = pcc->keymap[scancode];
+ pcc->keymap[scancode] = keycode;
+
+ set_bit(keycode, dev->keybit);
+
+ if (!keymap_get_by_keycode(pcc, oldkeycode))
+ clear_bit(oldkeycode, dev->keybit);
+
+ return 0;
+}
+
+static void acpi_pcc_generate_keyinput(struct pcc_acpi *pcc)
+{
+ struct input_dev *hotk_input_dev = pcc->input_dev;
+ int rc;
+ int key_code, hkey_num;
+ unsigned long long result;
+
+ ACPI_FUNCTION_TRACE("acpi_pcc_generate_keyinput");
+
+ rc = acpi_evaluate_integer(pcc->handle, METHOD_HKEY_QUERY,
+ NULL, &result);
+ if (!ACPI_SUCCESS(rc)) {
+ ACPI_DEBUG_PRINT((ACPI_DB_ERROR,
+ "error getting hotkey status\n"));
+ return;
+ }
+
+ acpi_bus_generate_proc_event(pcc->device, HKEY_NOTIFY, result);
+
+ hkey_num = result & 0xf;
+
+ if (hkey_num < 0 || hkey_num > ARRAY_SIZE(pcc->keymap)) {
+ ACPI_DEBUG_PRINT((ACPI_DB_ERROR,
+ "hotkey number out of range: %d\n",
+ hkey_num));
+ return;
+ }
+
+ key_code = pcc->keymap[hkey_num];
+
+ if (key_code != KEY_RESERVED) {
+ int pushed = (result & 0x80) ? TRUE : FALSE;
+
+ input_report_key(hotk_input_dev, key_code, pushed);
+ input_sync(hotk_input_dev);
+ }
+
+ return;
+}
+
+static void acpi_pcc_hotkey_notify(acpi_handle handle, u32 event, void *data)
+{
+ struct pcc_acpi *pcc = (struct pcc_acpi *) data;
+
+ ACPI_FUNCTION_TRACE("acpi_pcc_hotkey_notify");
+
+ switch (event) {
+ case HKEY_NOTIFY:
+ acpi_pcc_generate_keyinput(pcc);
+ break;
+ default:
+ /* nothing to do */
+ break;
+ }
+}
+
+static int acpi_pcc_init_input(struct pcc_acpi *pcc)
+{
+ int i, rc;
+
+ ACPI_FUNCTION_TRACE("acpi_pcc_init_input");
+
+ pcc->input_dev = input_allocate_device();
+ if (!pcc->input_dev) {
+ ACPI_DEBUG_PRINT((ACPI_DB_ERROR,
+ "Couldn't allocate input device for hotkey"));
+ return -ENOMEM;
+ }
+
+ pcc->input_dev->evbit[0] = BIT(EV_KEY);
+
+ pcc->input_dev->name = ACPI_PCC_DRIVER_NAME;
+ pcc->input_dev->phys = ACPI_PCC_INPUT_PHYS;
+ pcc->input_dev->id.bustype = BUS_HOST;
+ pcc->input_dev->id.vendor = 0x0001;
+ pcc->input_dev->id.product = 0x0001;
+ pcc->input_dev->id.version = 0x0100;
+ pcc->input_dev->getkeycode = pcc_getkeycode;
+ pcc->input_dev->setkeycode = pcc_setkeycode;
+
+ /* load initial keymap */
+ memcpy(pcc->keymap, initial_keymap, sizeof(pcc->keymap));
+
+ for (i = 0; i < ARRAY_SIZE(pcc->keymap); i++)
+ __set_bit(pcc->keymap[i], pcc->input_dev->keybit);
+ __clear_bit(KEY_RESERVED, pcc->input_dev->keybit);
+
+ input_set_drvdata(pcc->input_dev, pcc);
+
+ rc = input_register_device(pcc->input_dev);
+ if (rc < 0)
+ input_free_device(pcc->input_dev);
+
+ return rc;
+}
+
+/* kernel module interface */
+
+static int acpi_pcc_hotkey_resume(struct acpi_device *device)
+{
+ struct pcc_acpi *pcc = acpi_driver_data(device);
+ acpi_status status = AE_OK;
+
+ ACPI_FUNCTION_TRACE("acpi_pcc_hotkey_resume");
+
+ if (device == NULL || pcc == NULL)
+ return -EINVAL;
+
+ ACPI_DEBUG_PRINT((ACPI_DB_ERROR, "Sticky mode restore: %d\n",
+ pcc->sticky_mode));
+
+ status = acpi_pcc_write_sset(pcc, SINF_STICKY_KEY, pcc->sticky_mode);
+
+ return status == AE_OK ? 0 : -EINVAL;
+}
+
+static int acpi_pcc_hotkey_add(struct acpi_device *device)
+{
+ acpi_status status;
+ struct pcc_acpi *pcc;
+ int num_sifr, result;
+
+ ACPI_FUNCTION_TRACE("acpi_pcc_hotkey_add");
+
+ if (!device)
+ return -EINVAL;
+
+ num_sifr = acpi_pcc_get_sqty(device);
+
+ if (num_sifr > 255) {
+ ACPI_DEBUG_PRINT((ACPI_DB_ERROR, "num_sifr too large"));
+ return -ENODEV;
+ }
+
+ pcc = kzalloc(sizeof(struct pcc_acpi), GFP_KERNEL);
+ if (!pcc) {
+ ACPI_DEBUG_PRINT((ACPI_DB_ERROR,
+ "Couldn't allocate mem for pcc"));
+ return -ENOMEM;
+ }
+
+ pcc->sinf = kzalloc(sizeof(u32) * (num_sifr + 1), GFP_KERNEL);
+ if (!pcc->sinf) {
+ result = -ENOMEM;
+ goto out_hotkey;
+ }
+
+ pcc->device = device;
+ pcc->handle = device->handle;
+ pcc->num_sifr = num_sifr;
+ device->driver_data = pcc;
+ strcpy(acpi_device_name(device), ACPI_PCC_DEVICE_NAME);
+ strcpy(acpi_device_class(device), ACPI_PCC_CLASS);
+
+ result = acpi_pcc_init_input(pcc);
+ if (result) {
+ ACPI_DEBUG_PRINT((ACPI_DB_ERROR,
+ "Error installing keyinput handler\n"));
+ goto out_sinf;
+ }
+
+ /* initialize hotkey input device */
+ status = acpi_install_notify_handler(pcc->handle, ACPI_DEVICE_NOTIFY,
+ acpi_pcc_hotkey_notify, pcc);
+
+ if (ACPI_FAILURE(status)) {
+ ACPI_DEBUG_PRINT((ACPI_DB_ERROR,
+ "Error installing notify handler\n"));
+ result = -ENODEV;
+ goto out_input;
+ }
+
+ /* initialize backlight */
+ pcc->backlight = backlight_device_register("panasonic", NULL, pcc,
+ &pcc_backlight_ops);
+ if (IS_ERR(pcc->backlight))
+ goto out_notify;
+
+ if (!acpi_pcc_retrieve_biosdata(pcc, pcc->sinf)) {
+ ACPI_DEBUG_PRINT((ACPI_DB_ERROR,
+ "Couldn't retrieve BIOS data\n"));
+ goto out_backlight;
+ }
+
+ /* read the initial brightness setting from the hardware */
+ pcc->backlight->props.max_brightness =
+ pcc->sinf[SINF_AC_MAX_BRIGHT];
+ pcc->backlight->props.brightness = pcc->sinf[SINF_AC_CUR_BRIGHT];
+
+ /* read the initial sticky key mode from the hardware */
+ pcc->sticky_mode = pcc->sinf[SINF_STICKY_KEY];
+
+ /* add sysfs attributes */
+ result = sysfs_create_group(&device->dev.kobj, &pcc_attr_group);
+ if (result)
+ goto out_backlight;
+
+ return 0;
+
+out_backlight:
+ backlight_device_unregister(pcc->backlight);
+out_notify:
+ acpi_remove_notify_handler(pcc->handle, ACPI_DEVICE_NOTIFY,
+ acpi_pcc_hotkey_notify);
+out_input:
+ input_unregister_device(pcc->input_dev);
+ /* no need to input_free_device() since core input API refcount and
+ * free()s the device */
+out_sinf:
+ kfree(pcc->sinf);
+out_hotkey:
+ kfree(pcc);
+
+ return result;
+}
+
+static int __init acpi_pcc_init(void)
+{
+ int result = 0;
+
+ ACPI_FUNCTION_TRACE("acpi_pcc_init");
+
+ if (acpi_disabled)
+ return -ENODEV;
+
+ result = acpi_bus_register_driver(&acpi_pcc_driver);
+ if (result < 0) {
+ ACPI_DEBUG_PRINT((ACPI_DB_ERROR,
+ "Error registering hotkey driver\n"));
+ return -ENODEV;
+ }
+
+ return 0;
+}
+
+static int acpi_pcc_hotkey_remove(struct acpi_device *device, int type)
+{
+ struct pcc_acpi *pcc = acpi_driver_data(device);
+
+ ACPI_FUNCTION_TRACE("acpi_pcc_hotkey_remove");
+
+ if (!device || !pcc)
+ return -EINVAL;
+
+ sysfs_remove_group(&device->dev.kobj, &pcc_attr_group);
+
+ backlight_device_unregister(pcc->backlight);
+
+ acpi_remove_notify_handler(pcc->handle, ACPI_DEVICE_NOTIFY,
+ acpi_pcc_hotkey_notify);
+
+ input_unregister_device(pcc->input_dev);
+ /* no need to input_free_device() since core input API refcount and
+ * free()s the device */
+
+ kfree(pcc->sinf);
+ kfree(pcc);
+
+ return 0;
+}
+
+static void __exit acpi_pcc_exit(void)
+{
+ ACPI_FUNCTION_TRACE("acpi_pcc_exit");
+
+ acpi_bus_unregister_driver(&acpi_pcc_driver);
+}
+
+module_init(acpi_pcc_init);
+module_exit(acpi_pcc_exit);
diff --git a/drivers/misc/sgi-gru/Makefile b/drivers/misc/sgi-gru/Makefile
index d03597a521b..9e9170b3599 100644
--- a/drivers/misc/sgi-gru/Makefile
+++ b/drivers/misc/sgi-gru/Makefile
@@ -1,3 +1,7 @@
+ifdef CONFIG_SGI_GRU_DEBUG
+ EXTRA_CFLAGS += -DDEBUG
+endif
+
obj-$(CONFIG_SGI_GRU) := gru.o
gru-y := grufile.o grumain.o grufault.o grutlbpurge.o gruprocfs.o grukservices.o
diff --git a/drivers/misc/sgi-gru/grufault.c b/drivers/misc/sgi-gru/grufault.c
index 8c389d606c3..3ee698ad859 100644
--- a/drivers/misc/sgi-gru/grufault.c
+++ b/drivers/misc/sgi-gru/grufault.c
@@ -254,7 +254,11 @@ static int atomic_pte_lookup(struct vm_area_struct *vma, unsigned long vaddr,
return 1;
*paddr = pte_pfn(pte) << PAGE_SHIFT;
+#ifdef CONFIG_HUGETLB_PAGE
*pageshift = is_vm_hugetlb_page(vma) ? HPAGE_SHIFT : PAGE_SHIFT;
+#else
+ *pageshift = PAGE_SHIFT;
+#endif
return 0;
err:
diff --git a/drivers/misc/sgi-gru/grufile.c b/drivers/misc/sgi-gru/grufile.c
index 5c027b6b4e5..65098380639 100644
--- a/drivers/misc/sgi-gru/grufile.c
+++ b/drivers/misc/sgi-gru/grufile.c
@@ -481,7 +481,7 @@ struct vm_operations_struct gru_vm_ops = {
.fault = gru_fault,
};
-module_init(gru_init);
+fs_initcall(gru_init);
module_exit(gru_exit);
module_param(gru_options, ulong, 0644);
diff --git a/drivers/misc/sgi-xp/Makefile b/drivers/misc/sgi-xp/Makefile
index 35ce2857807..4fc40d8e1bc 100644
--- a/drivers/misc/sgi-xp/Makefile
+++ b/drivers/misc/sgi-xp/Makefile
@@ -5,14 +5,14 @@
obj-$(CONFIG_SGI_XP) += xp.o
xp-y := xp_main.o
xp-$(CONFIG_IA64_SGI_SN2) += xp_sn2.o xp_nofault.o
-xp-$(CONFIG_IA64_GENERIC) += xp_sn2.o xp_nofault.o xp_uv.o
+xp-$(CONFIG_IA64_GENERIC) += xp_sn2.o xp_nofault.o
xp-$(CONFIG_IA64_SGI_UV) += xp_uv.o
xp-$(CONFIG_X86_64) += xp_uv.o
obj-$(CONFIG_SGI_XP) += xpc.o
xpc-y := xpc_main.o xpc_channel.o xpc_partition.o
xpc-$(CONFIG_IA64_SGI_SN2) += xpc_sn2.o
-xpc-$(CONFIG_IA64_GENERIC) += xpc_sn2.o xpc_uv.o
+xpc-$(CONFIG_IA64_GENERIC) += xpc_sn2.o
xpc-$(CONFIG_IA64_SGI_UV) += xpc_uv.o
xpc-$(CONFIG_X86_64) += xpc_uv.o
diff --git a/drivers/misc/sgi-xp/xp.h b/drivers/misc/sgi-xp/xp.h
index 859a5281c61..ed1722e5004 100644
--- a/drivers/misc/sgi-xp/xp.h
+++ b/drivers/misc/sgi-xp/xp.h
@@ -19,7 +19,11 @@
#include <asm/system.h>
#include <asm/sn/arch.h> /* defines is_shub1() and is_shub2() */
#define is_shub() ia64_platform_is("sn2")
+#ifdef CONFIG_IA64_SGI_UV
#define is_uv() ia64_platform_is("uv")
+#else
+#define is_uv() 0
+#endif
#endif
#ifdef CONFIG_X86_64
#include <asm/genapic.h>
diff --git a/drivers/misc/sgi-xp/xpc_main.c b/drivers/misc/sgi-xp/xpc_main.c
index 46325fc8481..e8d5cfbd32c 100644
--- a/drivers/misc/sgi-xp/xpc_main.c
+++ b/drivers/misc/sgi-xp/xpc_main.c
@@ -1104,7 +1104,7 @@ xpc_do_exit(enum xp_retval reason)
if (is_shub())
xpc_exit_sn2();
- else
+ else if (is_uv())
xpc_exit_uv();
}
@@ -1363,7 +1363,7 @@ out_2:
out_1:
if (is_shub())
xpc_exit_sn2();
- else
+ else if (is_uv())
xpc_exit_uv();
return ret;
}
diff --git a/drivers/misc/sony-laptop.c b/drivers/misc/sony-laptop.c
index 60775be2282..571b211608d 100644
--- a/drivers/misc/sony-laptop.c
+++ b/drivers/misc/sony-laptop.c
@@ -970,7 +970,7 @@ static int sony_nc_resume(struct acpi_device *device)
/* set the last requested brightness level */
if (sony_backlight_device &&
!sony_backlight_update_status(sony_backlight_device))
- printk(KERN_WARNING DRV_PFX "unable to restore brightness level");
+ printk(KERN_WARNING DRV_PFX "unable to restore brightness level\n");
/* re-initialize models with specific requirements */
dmi_check_system(sony_nc_ids);
@@ -1038,7 +1038,11 @@ static int sony_nc_add(struct acpi_device *device)
goto outinput;
}
- if (ACPI_SUCCESS(acpi_get_handle(sony_nc_acpi_handle, "GBRT", &handle))) {
+ if (acpi_video_backlight_support()) {
+ printk(KERN_INFO DRV_PFX "brightness ignored, must be "
+ "controlled by ACPI video driver\n");
+ } else if (ACPI_SUCCESS(acpi_get_handle(sony_nc_acpi_handle, "GBRT",
+ &handle))) {
sony_backlight_device = backlight_device_register("sony", NULL,
NULL,
&sony_backlight_ops);
@@ -1920,7 +1924,6 @@ static int sonypi_misc_fasync(int fd, struct file *filp, int on)
static int sonypi_misc_release(struct inode *inode, struct file *file)
{
- sonypi_misc_fasync(-1, file, 0);
atomic_dec(&sonypi_compat.open_count);
return 0;
}
@@ -2315,8 +2318,10 @@ end:
*/
static int sony_pic_disable(struct acpi_device *device)
{
- if (ACPI_FAILURE(acpi_evaluate_object(device->handle,
- "_DIS", NULL, NULL)))
+ acpi_status ret = acpi_evaluate_object(device->handle, "_DIS", NULL,
+ NULL);
+
+ if (ACPI_FAILURE(ret) && ret != AE_NOT_FOUND)
return -ENXIO;
dprintk("Device disabled\n");
diff --git a/drivers/misc/thinkpad_acpi.c b/drivers/misc/thinkpad_acpi.c
index 6b9300779a4..899766e16fa 100644
--- a/drivers/misc/thinkpad_acpi.c
+++ b/drivers/misc/thinkpad_acpi.c
@@ -159,7 +159,6 @@ enum {
#define TPACPI_DEBUG KERN_DEBUG TPACPI_LOG
#define TPACPI_DBG_ALL 0xffff
-#define TPACPI_DBG_ALL 0xffff
#define TPACPI_DBG_INIT 0x0001
#define TPACPI_DBG_EXIT 0x0002
#define dbg_printk(a_dbg_level, format, arg...) \
@@ -543,7 +542,7 @@ static int __init setup_acpi_notify(struct ibm_struct *ibm)
return -ENODEV;
}
- acpi_driver_data(ibm->acpi->device) = ibm;
+ ibm->acpi->device->driver_data = ibm;
sprintf(acpi_device_class(ibm->acpi->device), "%s/%s",
TPACPI_ACPI_EVENT_PREFIX,
ibm->name);
@@ -582,7 +581,8 @@ static int __init register_tpacpi_subdriver(struct ibm_struct *ibm)
ibm->acpi->driver = kzalloc(sizeof(struct acpi_driver), GFP_KERNEL);
if (!ibm->acpi->driver) {
- printk(TPACPI_ERR "kzalloc(ibm->driver) failed\n");
+ printk(TPACPI_ERR
+ "failed to allocate memory for ibm->acpi->driver\n");
return -ENOMEM;
}
@@ -838,6 +838,13 @@ static int parse_strtoul(const char *buf,
return 0;
}
+static void tpacpi_disable_brightness_delay(void)
+{
+ if (acpi_evalf(hkey_handle, NULL, "PWMS", "qvd", 0))
+ printk(TPACPI_NOTICE
+ "ACPI backlight control delay disabled\n");
+}
+
static int __init tpacpi_query_bcl_levels(acpi_handle handle)
{
struct acpi_buffer buffer = { ACPI_ALLOCATE_BUFFER, NULL };
@@ -2139,6 +2146,8 @@ static int __init hotkey_init(struct ibm_init_struct *iibm)
if (!tp_features.hotkey)
return 1;
+ tpacpi_disable_brightness_delay();
+
hotkey_dev_attributes = create_attr_set(13, NULL);
if (!hotkey_dev_attributes)
return -ENOMEM;
@@ -2512,6 +2521,8 @@ static void hotkey_suspend(pm_message_t state)
static void hotkey_resume(void)
{
+ tpacpi_disable_brightness_delay();
+
if (hotkey_mask_get())
printk(TPACPI_ERR
"error while trying to read hot key mask "
@@ -4921,16 +4932,25 @@ static int __init brightness_init(struct ibm_init_struct *iibm)
*/
b = tpacpi_check_std_acpi_brightness_support();
if (b > 0) {
- if (thinkpad_id.vendor == PCI_VENDOR_ID_LENOVO) {
- printk(TPACPI_NOTICE
- "Lenovo BIOS switched to ACPI backlight "
- "control mode\n");
- }
- if (brightness_enable > 1) {
- printk(TPACPI_NOTICE
- "standard ACPI backlight interface "
- "available, not loading native one...\n");
- return 1;
+
+ if (acpi_video_backlight_support()) {
+ if (brightness_enable > 1) {
+ printk(TPACPI_NOTICE
+ "Standard ACPI backlight interface "
+ "available, not loading native one.\n");
+ return 1;
+ } else if (brightness_enable == 1) {
+ printk(TPACPI_NOTICE
+ "Backlight control force enabled, even if standard "
+ "ACPI backlight interface is available\n");
+ }
+ } else {
+ if (brightness_enable > 1) {
+ printk(TPACPI_NOTICE
+ "Standard ACPI backlight interface not "
+ "available, thinkpad_acpi native "
+ "brightness control enabled\n");
+ }
}
}
@@ -5298,6 +5318,7 @@ static enum fan_control_commands fan_control_commands;
static u8 fan_control_initial_status;
static u8 fan_control_desired_level;
+static u8 fan_control_resume_level;
static int fan_watchdog_maxinterval;
static struct mutex fan_mutex;
@@ -5420,8 +5441,8 @@ static int fan_set_level(int level)
case TPACPI_FAN_WR_ACPI_FANS:
case TPACPI_FAN_WR_TPEC:
- if ((level != TP_EC_FAN_AUTO) &&
- (level != TP_EC_FAN_FULLSPEED) &&
+ if (!(level & TP_EC_FAN_AUTO) &&
+ !(level & TP_EC_FAN_FULLSPEED) &&
((level < 0) || (level > 7)))
return -EINVAL;
@@ -5983,6 +6004,84 @@ static void fan_exit(void)
flush_workqueue(tpacpi_wq);
}
+static void fan_suspend(pm_message_t state)
+{
+ int rc;
+
+ if (!fan_control_allowed)
+ return;
+
+ /* Store fan status in cache */
+ fan_control_resume_level = 0;
+ rc = fan_get_status_safe(&fan_control_resume_level);
+ if (rc < 0)
+ printk(TPACPI_NOTICE
+ "failed to read fan level for later "
+ "restore during resume: %d\n", rc);
+
+ /* if it is undefined, don't attempt to restore it.
+ * KEEP THIS LAST */
+ if (tp_features.fan_ctrl_status_undef)
+ fan_control_resume_level = 0;
+}
+
+static void fan_resume(void)
+{
+ u8 current_level = 7;
+ bool do_set = false;
+ int rc;
+
+ /* DSDT *always* updates status on resume */
+ tp_features.fan_ctrl_status_undef = 0;
+
+ if (!fan_control_allowed ||
+ !fan_control_resume_level ||
+ (fan_get_status_safe(&current_level) < 0))
+ return;
+
+ switch (fan_control_access_mode) {
+ case TPACPI_FAN_WR_ACPI_SFAN:
+ /* never decrease fan level */
+ do_set = (fan_control_resume_level > current_level);
+ break;
+ case TPACPI_FAN_WR_ACPI_FANS:
+ case TPACPI_FAN_WR_TPEC:
+ /* never decrease fan level, scale is:
+ * TP_EC_FAN_FULLSPEED > 7 >= TP_EC_FAN_AUTO
+ *
+ * We expect the firmware to set either 7 or AUTO, but we
+ * handle FULLSPEED out of paranoia.
+ *
+ * So, we can safely only restore FULLSPEED or 7, anything
+ * else could slow the fan. Restoring AUTO is useless, at
+ * best that's exactly what the DSDT already set (it is the
+ * slower it uses).
+ *
+ * Always keep in mind that the DSDT *will* have set the
+ * fans to what the vendor supposes is the best level. We
+ * muck with it only to speed the fan up.
+ */
+ if (fan_control_resume_level != 7 &&
+ !(fan_control_resume_level & TP_EC_FAN_FULLSPEED))
+ return;
+ else
+ do_set = !(current_level & TP_EC_FAN_FULLSPEED) &&
+ (current_level != fan_control_resume_level);
+ break;
+ default:
+ return;
+ }
+ if (do_set) {
+ printk(TPACPI_NOTICE
+ "restoring fan level to 0x%02x\n",
+ fan_control_resume_level);
+ rc = fan_set_level_safe(fan_control_resume_level);
+ if (rc < 0)
+ printk(TPACPI_NOTICE
+ "failed to restore fan level: %d\n", rc);
+ }
+}
+
static int fan_read(char *p)
{
int len = 0;
@@ -6174,6 +6273,8 @@ static struct ibm_struct fan_driver_data = {
.read = fan_read,
.write = fan_write,
.exit = fan_exit,
+ .suspend = fan_suspend,
+ .resume = fan_resume,
};
/****************************************************************************
generated by cgit v1.2.3-70-g09d2 (git 2.46.0) at 2024-10-05 01:24:19 +0000