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Diffstat (limited to 'drivers/misc/acer-wmi.c')
-rw-r--r--drivers/misc/acer-wmi.c231
1 files changed, 146 insertions, 85 deletions
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;