#include <linux/backlight.h>
#include <linux/leds.h>
#include <linux/rfkill.h>
+#include <linux/pci.h>
+#include <linux/pci_hotplug.h>
#include <linux/debugfs.h>
#include <linux/seq_file.h>
#include <linux/platform_device.h>
+#include <linux/dmi.h>
#include <acpi/acpi_bus.h>
#include <acpi/acpi_drivers.h>
MODULE_ALIAS("wmi:"EEEPC_WMI_EVENT_GUID);
MODULE_ALIAS("wmi:"EEEPC_WMI_MGMT_GUID);
-#define NOTIFY_BRNUP_MIN 0x11
-#define NOTIFY_BRNUP_MAX 0x1f
-#define NOTIFY_BRNDOWN_MIN 0x20
-#define NOTIFY_BRNDOWN_MAX 0x2e
+#define NOTIFY_BRNUP_MIN 0x11
+#define NOTIFY_BRNUP_MAX 0x1f
+#define NOTIFY_BRNDOWN_MIN 0x20
+#define NOTIFY_BRNDOWN_MAX 0x2e
-#define EEEPC_WMI_METHODID_DEVS 0x53564544
-#define EEEPC_WMI_METHODID_DSTS 0x53544344
-#define EEEPC_WMI_METHODID_CFVS 0x53564643
+#define EEEPC_WMI_METHODID_DSTS 0x53544344
+#define EEEPC_WMI_METHODID_DEVS 0x53564544
+#define EEEPC_WMI_METHODID_CFVS 0x53564643
-#define EEEPC_WMI_DEVID_BACKLIGHT 0x00050012
-#define EEEPC_WMI_DEVID_TPDLED 0x00100011
#define EEEPC_WMI_DEVID_WLAN 0x00010011
#define EEEPC_WMI_DEVID_BLUETOOTH 0x00010013
+#define EEEPC_WMI_DEVID_WIMAX 0x00010017
#define EEEPC_WMI_DEVID_WWAN3G 0x00010019
+#define EEEPC_WMI_DEVID_BACKLIGHT 0x00050011
+#define EEEPC_WMI_DEVID_BRIGHTNESS 0x00050012
+#define EEEPC_WMI_DEVID_CAMERA 0x00060013
+#define EEEPC_WMI_DEVID_CARDREADER 0x00080013
+#define EEEPC_WMI_DEVID_TOUCHPAD 0x00100011
+#define EEEPC_WMI_DEVID_TOUCHPAD_LED 0x00100012
+
+#define EEEPC_WMI_DSTS_STATUS_BIT 0x00000001
+#define EEEPC_WMI_DSTS_PRESENCE_BIT 0x00010000
+#define EEEPC_WMI_DSTS_BRIGHTNESS_MASK 0x000000FF
+#define EEEPC_WMI_DSTS_MAX_BRIGTH_MASK 0x0000FF00
+
+static bool hotplug_wireless;
+
+module_param(hotplug_wireless, bool, 0444);
+MODULE_PARM_DESC(hotplug_wireless,
+ "Enable hotplug for wireless device. "
+ "If your laptop needs that, please report to "
+ "acpi4asus-user@lists.sourceforge.net.");
static const struct key_entry eeepc_wmi_keymap[] = {
/* Sleep already handled via generic ACPI code */
{ KE_KEY, 0x30, { KEY_VOLUMEUP } },
{ KE_KEY, 0x31, { KEY_VOLUMEDOWN } },
{ KE_KEY, 0x32, { KEY_MUTE } },
- { KE_KEY, 0x5c, { KEY_F15 } },
+ { KE_KEY, 0x5c, { KEY_F15 } }, /* Power Gear key */
{ KE_KEY, 0x5d, { KEY_WLAN } },
{ KE_KEY, 0x6b, { KEY_F13 } }, /* Disable Touchpad */
{ KE_KEY, 0x88, { KEY_WLAN } },
{ KE_KEY, 0xcc, { KEY_SWITCHVIDEOMODE } },
- { KE_KEY, 0xe0, { KEY_PROG1 } },
- { KE_KEY, 0xe1, { KEY_F14 } },
- { KE_KEY, 0xe9, { KEY_DISPLAY_OFF } },
+ { KE_KEY, 0xe0, { KEY_PROG1 } }, /* Task Manager */
+ { KE_KEY, 0xe1, { KEY_F14 } }, /* Change Resolution */
+ { KE_KEY, 0xe9, { KEY_BRIGHTNESS_ZERO } },
{ KE_END, 0},
};
};
struct eeepc_wmi {
+ bool hotplug_wireless;
+
struct input_dev *inputdev;
struct backlight_device *backlight_device;
struct platform_device *platform_device;
struct rfkill *wlan_rfkill;
struct rfkill *bluetooth_rfkill;
+ struct rfkill *wimax_rfkill;
struct rfkill *wwan3g_rfkill;
+ struct hotplug_slot *hotplug_slot;
+ struct mutex hotplug_lock;
+ struct mutex wmi_lock;
+ struct workqueue_struct *hotplug_workqueue;
+ struct work_struct hotplug_work;
+
struct eeepc_wmi_debug debug;
};
-/* Only used in eeepc_wmi_init() and eeepc_wmi_exit() */
-static struct platform_device *platform_device;
-
static int eeepc_wmi_input_init(struct eeepc_wmi *eeepc)
{
int err;
u32 tmp;
status = wmi_evaluate_method(EEEPC_WMI_MGMT_GUID,
- 1, EEEPC_WMI_METHODID_DSTS, &input, &output);
+ 1, EEEPC_WMI_METHODID_DSTS,
+ &input, &output);
if (ACPI_FAILURE(status))
return status;
return status;
}
+/* Helper for special devices with magic return codes */
+static int eeepc_wmi_get_devstate_bits(u32 dev_id, u32 mask)
+{
+ u32 retval = 0;
+ acpi_status status;
+
+ status = eeepc_wmi_get_devstate(dev_id, &retval);
+
+ if (ACPI_FAILURE(status))
+ return -EINVAL;
+
+ if (!(retval & EEEPC_WMI_DSTS_PRESENCE_BIT))
+ return -ENODEV;
+
+ return retval & mask;
+}
+
+static int eeepc_wmi_get_devstate_simple(u32 dev_id)
+{
+ return eeepc_wmi_get_devstate_bits(dev_id, EEEPC_WMI_DSTS_STATUS_BIT);
+}
+
/*
* LEDs
*/
eeepc = container_of(work, struct eeepc_wmi, tpd_led_work);
ctrl_param = eeepc->tpd_led_wk;
- eeepc_wmi_set_devstate(EEEPC_WMI_DEVID_TPDLED, ctrl_param, NULL);
+ eeepc_wmi_set_devstate(EEEPC_WMI_DEVID_TOUCHPAD_LED, ctrl_param, NULL);
}
static void tpd_led_set(struct led_classdev *led_cdev,
queue_work(eeepc->led_workqueue, &eeepc->tpd_led_work);
}
-static int read_tpd_state(struct eeepc_wmi *eeepc)
+static int read_tpd_led_state(struct eeepc_wmi *eeepc)
{
- u32 retval;
- acpi_status status;
-
- status = eeepc_wmi_get_devstate(EEEPC_WMI_DEVID_TPDLED, &retval);
-
- if (ACPI_FAILURE(status))
- return -1;
- else if (!retval || retval == 0x00060000)
- /*
- * if touchpad led is present, DSTS will set some bits,
- * usually 0x00020000.
- * 0x00060000 means that the device is not supported
- */
- return -ENODEV;
- else
- /* Status is stored in the first bit */
- return retval & 0x1;
+ return eeepc_wmi_get_devstate_simple(EEEPC_WMI_DEVID_TOUCHPAD_LED);
}
static enum led_brightness tpd_led_get(struct led_classdev *led_cdev)
eeepc = container_of(led_cdev, struct eeepc_wmi, tpd_led);
- return read_tpd_state(eeepc);
+ return read_tpd_led_state(eeepc);
}
static int eeepc_wmi_led_init(struct eeepc_wmi *eeepc)
{
int rv;
- if (read_tpd_state(eeepc) < 0)
+ if (read_tpd_led_state(eeepc) < 0)
return 0;
eeepc->led_workqueue = create_singlethread_workqueue("led_workqueue");
destroy_workqueue(eeepc->led_workqueue);
}
+/*
+ * PCI hotplug (for wlan rfkill)
+ */
+static bool eeepc_wlan_rfkill_blocked(struct eeepc_wmi *eeepc)
+{
+ int result = eeepc_wmi_get_devstate_simple(EEEPC_WMI_DEVID_WLAN);
+
+ if (result < 0)
+ return false;
+ return !result;
+}
+
+static void eeepc_rfkill_hotplug(struct eeepc_wmi *eeepc)
+{
+ struct pci_dev *dev;
+ struct pci_bus *bus;
+ bool blocked;
+ bool absent;
+ u32 l;
+
+ mutex_lock(&eeepc->wmi_lock);
+ blocked = eeepc_wlan_rfkill_blocked(eeepc);
+ mutex_unlock(&eeepc->wmi_lock);
+
+ mutex_lock(&eeepc->hotplug_lock);
+
+ if (eeepc->wlan_rfkill)
+ rfkill_set_sw_state(eeepc->wlan_rfkill, blocked);
+
+ if (eeepc->hotplug_slot) {
+ bus = pci_find_bus(0, 1);
+ if (!bus) {
+ pr_warning("Unable to find PCI bus 1?\n");
+ goto out_unlock;
+ }
+
+ if (pci_bus_read_config_dword(bus, 0, PCI_VENDOR_ID, &l)) {
+ pr_err("Unable to read PCI config space?\n");
+ goto out_unlock;
+ }
+ absent = (l == 0xffffffff);
+
+ if (blocked != absent) {
+ pr_warning("BIOS says wireless lan is %s, "
+ "but the pci device is %s\n",
+ blocked ? "blocked" : "unblocked",
+ absent ? "absent" : "present");
+ pr_warning("skipped wireless hotplug as probably "
+ "inappropriate for this model\n");
+ goto out_unlock;
+ }
+
+ if (!blocked) {
+ dev = pci_get_slot(bus, 0);
+ if (dev) {
+ /* Device already present */
+ pci_dev_put(dev);
+ goto out_unlock;
+ }
+ dev = pci_scan_single_device(bus, 0);
+ if (dev) {
+ pci_bus_assign_resources(bus);
+ if (pci_bus_add_device(dev))
+ pr_err("Unable to hotplug wifi\n");
+ }
+ } else {
+ dev = pci_get_slot(bus, 0);
+ if (dev) {
+ pci_remove_bus_device(dev);
+ pci_dev_put(dev);
+ }
+ }
+ }
+
+out_unlock:
+ mutex_unlock(&eeepc->hotplug_lock);
+}
+
+static void eeepc_rfkill_notify(acpi_handle handle, u32 event, void *data)
+{
+ struct eeepc_wmi *eeepc = data;
+
+ if (event != ACPI_NOTIFY_BUS_CHECK)
+ return;
+
+ /*
+ * We can't call directly eeepc_rfkill_hotplug because most
+ * of the time WMBC is still being executed and not reetrant.
+ * There is currently no way to tell ACPICA that we want this
+ * method to be serialized, we schedule a eeepc_rfkill_hotplug
+ * call later, in a safer context.
+ */
+ queue_work(eeepc->hotplug_workqueue, &eeepc->hotplug_work);
+}
+
+static int eeepc_register_rfkill_notifier(struct eeepc_wmi *eeepc,
+ char *node)
+{
+ acpi_status status;
+ acpi_handle handle;
+
+ status = acpi_get_handle(NULL, node, &handle);
+
+ if (ACPI_SUCCESS(status)) {
+ status = acpi_install_notify_handler(handle,
+ ACPI_SYSTEM_NOTIFY,
+ eeepc_rfkill_notify,
+ eeepc);
+ if (ACPI_FAILURE(status))
+ pr_warning("Failed to register notify on %s\n", node);
+ } else
+ return -ENODEV;
+
+ return 0;
+}
+
+static void eeepc_unregister_rfkill_notifier(struct eeepc_wmi *eeepc,
+ char *node)
+{
+ acpi_status status = AE_OK;
+ acpi_handle handle;
+
+ status = acpi_get_handle(NULL, node, &handle);
+
+ if (ACPI_SUCCESS(status)) {
+ status = acpi_remove_notify_handler(handle,
+ ACPI_SYSTEM_NOTIFY,
+ eeepc_rfkill_notify);
+ if (ACPI_FAILURE(status))
+ pr_err("Error removing rfkill notify handler %s\n",
+ node);
+ }
+}
+
+static int eeepc_get_adapter_status(struct hotplug_slot *hotplug_slot,
+ u8 *value)
+{
+ int result = eeepc_wmi_get_devstate_simple(EEEPC_WMI_DEVID_WLAN);
+
+ if (result < 0)
+ return result;
+
+ *value = !!result;
+ return 0;
+}
+
+static void eeepc_cleanup_pci_hotplug(struct hotplug_slot *hotplug_slot)
+{
+ kfree(hotplug_slot->info);
+ kfree(hotplug_slot);
+}
+
+static struct hotplug_slot_ops eeepc_hotplug_slot_ops = {
+ .owner = THIS_MODULE,
+ .get_adapter_status = eeepc_get_adapter_status,
+ .get_power_status = eeepc_get_adapter_status,
+};
+
+static void eeepc_hotplug_work(struct work_struct *work)
+{
+ struct eeepc_wmi *eeepc;
+
+ eeepc = container_of(work, struct eeepc_wmi, hotplug_work);
+ eeepc_rfkill_hotplug(eeepc);
+}
+
+static int eeepc_setup_pci_hotplug(struct eeepc_wmi *eeepc)
+{
+ int ret = -ENOMEM;
+ struct pci_bus *bus = pci_find_bus(0, 1);
+
+ if (!bus) {
+ pr_err("Unable to find wifi PCI bus\n");
+ return -ENODEV;
+ }
+
+ eeepc->hotplug_workqueue =
+ create_singlethread_workqueue("hotplug_workqueue");
+ if (!eeepc->hotplug_workqueue)
+ goto error_workqueue;
+
+ INIT_WORK(&eeepc->hotplug_work, eeepc_hotplug_work);
+
+ eeepc->hotplug_slot = kzalloc(sizeof(struct hotplug_slot), GFP_KERNEL);
+ if (!eeepc->hotplug_slot)
+ goto error_slot;
+
+ eeepc->hotplug_slot->info = kzalloc(sizeof(struct hotplug_slot_info),
+ GFP_KERNEL);
+ if (!eeepc->hotplug_slot->info)
+ goto error_info;
+
+ eeepc->hotplug_slot->private = eeepc;
+ eeepc->hotplug_slot->release = &eeepc_cleanup_pci_hotplug;
+ eeepc->hotplug_slot->ops = &eeepc_hotplug_slot_ops;
+ eeepc_get_adapter_status(eeepc->hotplug_slot,
+ &eeepc->hotplug_slot->info->adapter_status);
+
+ ret = pci_hp_register(eeepc->hotplug_slot, bus, 0, "eeepc-wifi");
+ if (ret) {
+ pr_err("Unable to register hotplug slot - %d\n", ret);
+ goto error_register;
+ }
+
+ return 0;
+
+error_register:
+ kfree(eeepc->hotplug_slot->info);
+error_info:
+ kfree(eeepc->hotplug_slot);
+ eeepc->hotplug_slot = NULL;
+error_slot:
+ destroy_workqueue(eeepc->hotplug_workqueue);
+error_workqueue:
+ return ret;
+}
+
/*
* Rfkill devices
*/
{
int dev_id = (unsigned long)data;
u32 ctrl_param = !blocked;
+ acpi_status status;
+
+ status = eeepc_wmi_set_devstate(dev_id, ctrl_param, NULL);
- return eeepc_wmi_set_devstate(dev_id, ctrl_param, NULL);
+ if (ACPI_FAILURE(status))
+ return -EIO;
+
+ return 0;
}
static void eeepc_rfkill_query(struct rfkill *rfkill, void *data)
{
int dev_id = (unsigned long)data;
- u32 retval;
- acpi_status status;
+ int result;
- status = eeepc_wmi_get_devstate(dev_id, &retval);
+ result = eeepc_wmi_get_devstate_simple(dev_id);
- if (ACPI_FAILURE(status))
+ if (result < 0)
return ;
- rfkill_set_sw_state(rfkill, !(retval & 0x1));
+ rfkill_set_sw_state(rfkill, !result);
}
+static int eeepc_rfkill_wlan_set(void *data, bool blocked)
+{
+ struct eeepc_wmi *eeepc = data;
+ int ret;
+
+ /*
+ * This handler is enabled only if hotplug is enabled.
+ * In this case, the eeepc_wmi_set_devstate() will
+ * trigger a wmi notification and we need to wait
+ * this call to finish before being able to call
+ * any wmi method
+ */
+ mutex_lock(&eeepc->wmi_lock);
+ ret = eeepc_rfkill_set((void *)(long)EEEPC_WMI_DEVID_WLAN, blocked);
+ mutex_unlock(&eeepc->wmi_lock);
+ return ret;
+}
+
+static void eeepc_rfkill_wlan_query(struct rfkill *rfkill, void *data)
+{
+ eeepc_rfkill_query(rfkill, (void *)(long)EEEPC_WMI_DEVID_WLAN);
+}
+
+static const struct rfkill_ops eeepc_rfkill_wlan_ops = {
+ .set_block = eeepc_rfkill_wlan_set,
+ .query = eeepc_rfkill_wlan_query,
+};
+
static const struct rfkill_ops eeepc_rfkill_ops = {
.set_block = eeepc_rfkill_set,
.query = eeepc_rfkill_query,
const char *name,
enum rfkill_type type, int dev_id)
{
- int result;
- u32 retval;
- acpi_status status;
-
- status = eeepc_wmi_get_devstate(dev_id, &retval);
-
- if (ACPI_FAILURE(status))
- return -1;
+ int result = eeepc_wmi_get_devstate_simple(dev_id);
- /* If the device is present, DSTS will always set some bits
- * 0x00070000 - 1110000000000000000 - device supported
- * 0x00060000 - 1100000000000000000 - not supported
- * 0x00020000 - 0100000000000000000 - device supported
- * 0x00010000 - 0010000000000000000 - not supported / special mode ?
- */
- if (!retval || retval == 0x00060000)
- return -ENODEV;
+ if (result < 0)
+ return result;
- *rfkill = rfkill_alloc(name, &eeepc->platform_device->dev, type,
- &eeepc_rfkill_ops, (void *)(long)dev_id);
+ if (dev_id == EEEPC_WMI_DEVID_WLAN && eeepc->hotplug_wireless)
+ *rfkill = rfkill_alloc(name, &eeepc->platform_device->dev, type,
+ &eeepc_rfkill_wlan_ops, eeepc);
+ else
+ *rfkill = rfkill_alloc(name, &eeepc->platform_device->dev, type,
+ &eeepc_rfkill_ops, (void *)(long)dev_id);
if (!*rfkill)
return -EINVAL;
- rfkill_init_sw_state(*rfkill, !(retval & 0x1));
+ rfkill_init_sw_state(*rfkill, !result);
result = rfkill_register(*rfkill);
if (result) {
rfkill_destroy(*rfkill);
static void eeepc_wmi_rfkill_exit(struct eeepc_wmi *eeepc)
{
+ eeepc_unregister_rfkill_notifier(eeepc, "\\_SB.PCI0.P0P5");
+ eeepc_unregister_rfkill_notifier(eeepc, "\\_SB.PCI0.P0P6");
+ eeepc_unregister_rfkill_notifier(eeepc, "\\_SB.PCI0.P0P7");
if (eeepc->wlan_rfkill) {
rfkill_unregister(eeepc->wlan_rfkill);
rfkill_destroy(eeepc->wlan_rfkill);
eeepc->wlan_rfkill = NULL;
}
+ /*
+ * Refresh pci hotplug in case the rfkill state was changed after
+ * eeepc_unregister_rfkill_notifier()
+ */
+ eeepc_rfkill_hotplug(eeepc);
+ if (eeepc->hotplug_slot)
+ pci_hp_deregister(eeepc->hotplug_slot);
+ if (eeepc->hotplug_workqueue)
+ destroy_workqueue(eeepc->hotplug_workqueue);
+
if (eeepc->bluetooth_rfkill) {
rfkill_unregister(eeepc->bluetooth_rfkill);
rfkill_destroy(eeepc->bluetooth_rfkill);
eeepc->bluetooth_rfkill = NULL;
}
+ if (eeepc->wimax_rfkill) {
+ rfkill_unregister(eeepc->wimax_rfkill);
+ rfkill_destroy(eeepc->wimax_rfkill);
+ eeepc->wimax_rfkill = NULL;
+ }
if (eeepc->wwan3g_rfkill) {
rfkill_unregister(eeepc->wwan3g_rfkill);
rfkill_destroy(eeepc->wwan3g_rfkill);
{
int result = 0;
+ mutex_init(&eeepc->hotplug_lock);
+ mutex_init(&eeepc->wmi_lock);
+
result = eeepc_new_rfkill(eeepc, &eeepc->wlan_rfkill,
"eeepc-wlan", RFKILL_TYPE_WLAN,
EEEPC_WMI_DEVID_WLAN);
if (result && result != -ENODEV)
goto exit;
+ result = eeepc_new_rfkill(eeepc, &eeepc->wimax_rfkill,
+ "eeepc-wimax", RFKILL_TYPE_WIMAX,
+ EEEPC_WMI_DEVID_WIMAX);
+
+ if (result && result != -ENODEV)
+ goto exit;
+
result = eeepc_new_rfkill(eeepc, &eeepc->wwan3g_rfkill,
"eeepc-wwan3g", RFKILL_TYPE_WWAN,
EEEPC_WMI_DEVID_WWAN3G);
if (result && result != -ENODEV)
goto exit;
+ if (!eeepc->hotplug_wireless)
+ goto exit;
+
+ result = eeepc_setup_pci_hotplug(eeepc);
+ /*
+ * If we get -EBUSY then something else is handling the PCI hotplug -
+ * don't fail in this case
+ */
+ if (result == -EBUSY)
+ result = 0;
+
+ eeepc_register_rfkill_notifier(eeepc, "\\_SB.PCI0.P0P5");
+ eeepc_register_rfkill_notifier(eeepc, "\\_SB.PCI0.P0P6");
+ eeepc_register_rfkill_notifier(eeepc, "\\_SB.PCI0.P0P7");
+ /*
+ * Refresh pci hotplug in case the rfkill state was changed during
+ * setup.
+ */
+ eeepc_rfkill_hotplug(eeepc);
+
exit:
if (result && result != -ENODEV)
eeepc_wmi_rfkill_exit(eeepc);
/*
* Backlight
*/
+static int read_backlight_power(void)
+{
+ int ret = eeepc_wmi_get_devstate_simple(EEEPC_WMI_DEVID_BACKLIGHT);
+
+ if (ret < 0)
+ return ret;
+
+ return ret ? FB_BLANK_UNBLANK : FB_BLANK_POWERDOWN;
+}
+
static int read_brightness(struct backlight_device *bd)
{
u32 retval;
acpi_status status;
- status = eeepc_wmi_get_devstate(EEEPC_WMI_DEVID_BACKLIGHT, &retval);
+ status = eeepc_wmi_get_devstate(EEEPC_WMI_DEVID_BRIGHTNESS, &retval);
if (ACPI_FAILURE(status))
- return -1;
+ return -EIO;
else
- return retval & 0xFF;
+ return retval & EEEPC_WMI_DSTS_BRIGHTNESS_MASK;
}
static int update_bl_status(struct backlight_device *bd)
{
-
u32 ctrl_param;
acpi_status status;
+ int power;
ctrl_param = bd->props.brightness;
- status = eeepc_wmi_set_devstate(EEEPC_WMI_DEVID_BACKLIGHT,
+ status = eeepc_wmi_set_devstate(EEEPC_WMI_DEVID_BRIGHTNESS,
ctrl_param, NULL);
if (ACPI_FAILURE(status))
- return -1;
- else
- return 0;
+ return -EIO;
+
+ power = read_backlight_power();
+ if (power != -ENODEV && bd->props.power != power) {
+ ctrl_param = !!(bd->props.power == FB_BLANK_UNBLANK);
+ status = eeepc_wmi_set_devstate(EEEPC_WMI_DEVID_BACKLIGHT,
+ ctrl_param, NULL);
+
+ if (ACPI_FAILURE(status))
+ return -EIO;
+ }
+ return 0;
}
static const struct backlight_ops eeepc_wmi_bl_ops = {
{
struct backlight_device *bd;
struct backlight_properties props;
+ int max;
+ int power;
+
+ max = eeepc_wmi_get_devstate_bits(EEEPC_WMI_DEVID_BRIGHTNESS,
+ EEEPC_WMI_DSTS_MAX_BRIGTH_MASK);
+ power = read_backlight_power();
+
+ if (max < 0 && power < 0) {
+ /* Try to keep the original error */
+ if (max == -ENODEV && power == -ENODEV)
+ return -ENODEV;
+ if (max != -ENODEV)
+ return max;
+ else
+ return power;
+ }
+ if (max == -ENODEV)
+ max = 0;
+ if (power == -ENODEV)
+ power = FB_BLANK_UNBLANK;
memset(&props, 0, sizeof(struct backlight_properties));
- props.max_brightness = 15;
+ props.max_brightness = max;
bd = backlight_device_register(EEEPC_WMI_FILE,
&eeepc->platform_device->dev, eeepc,
&eeepc_wmi_bl_ops, &props);
eeepc->backlight_device = bd;
bd->props.brightness = read_brightness(bd);
- bd->props.power = FB_BLANK_UNBLANK;
+ bd->props.power = power;
backlight_update_status(bd);
return 0;
kfree(obj);
}
+/*
+ * Sys helpers
+ */
+static int parse_arg(const char *buf, unsigned long count, int *val)
+{
+ if (!count)
+ return 0;
+ if (sscanf(buf, "%i", val) != 1)
+ return -EINVAL;
+ return count;
+}
+
+static ssize_t store_sys_wmi(int devid, const char *buf, size_t count)
+{
+ acpi_status status;
+ u32 retval;
+ int rv, value;
+
+ value = eeepc_wmi_get_devstate_simple(devid);
+ if (value == -ENODEV) /* Check device presence */
+ return value;
+
+ rv = parse_arg(buf, count, &value);
+ status = eeepc_wmi_set_devstate(devid, value, &retval);
+
+ if (ACPI_FAILURE(status))
+ return -EIO;
+ return rv;
+}
+
+static ssize_t show_sys_wmi(int devid, char *buf)
+{
+ int value = eeepc_wmi_get_devstate_simple(devid);
+
+ if (value < 0)
+ return value;
+
+ return sprintf(buf, "%d\n", value);
+}
+
+#define EEEPC_WMI_CREATE_DEVICE_ATTR(_name, _mode, _cm) \
+ static ssize_t show_##_name(struct device *dev, \
+ struct device_attribute *attr, \
+ char *buf) \
+ { \
+ return show_sys_wmi(_cm, buf); \
+ } \
+ static ssize_t store_##_name(struct device *dev, \
+ struct device_attribute *attr, \
+ const char *buf, size_t count) \
+ { \
+ return store_sys_wmi(_cm, buf, count); \
+ } \
+ static struct device_attribute dev_attr_##_name = { \
+ .attr = { \
+ .name = __stringify(_name), \
+ .mode = _mode }, \
+ .show = show_##_name, \
+ .store = store_##_name, \
+ }
+
+EEEPC_WMI_CREATE_DEVICE_ATTR(touchpad, 0644, EEEPC_WMI_DEVID_TOUCHPAD);
+EEEPC_WMI_CREATE_DEVICE_ATTR(camera, 0644, EEEPC_WMI_DEVID_CAMERA);
+EEEPC_WMI_CREATE_DEVICE_ATTR(cardr, 0644, EEEPC_WMI_DEVID_CARDREADER);
+
static ssize_t store_cpufv(struct device *dev, struct device_attribute *attr,
const char *buf, size_t count)
{
static struct attribute *platform_attributes[] = {
&dev_attr_cpufv.attr,
+ &dev_attr_camera.attr,
+ &dev_attr_cardr.attr,
+ &dev_attr_touchpad.attr,
NULL
};
+static mode_t eeepc_sysfs_is_visible(struct kobject *kobj,
+ struct attribute *attr,
+ int idx)
+{
+ bool supported = true;
+ int devid = -1;
+
+ if (attr == &dev_attr_camera.attr)
+ devid = EEEPC_WMI_DEVID_CAMERA;
+ else if (attr == &dev_attr_cardr.attr)
+ devid = EEEPC_WMI_DEVID_CARDREADER;
+ else if (attr == &dev_attr_touchpad.attr)
+ devid = EEEPC_WMI_DEVID_TOUCHPAD;
+
+ if (devid != -1)
+ supported = eeepc_wmi_get_devstate_simple(devid) != -ENODEV;
+
+ return supported ? attr->mode : 0;
+}
+
static struct attribute_group platform_attribute_group = {
- .attrs = platform_attributes
+ .is_visible = eeepc_sysfs_is_visible,
+ .attrs = platform_attributes
};
static void eeepc_wmi_sysfs_exit(struct platform_device *device)
*/
static int __init eeepc_wmi_platform_init(struct eeepc_wmi *eeepc)
{
- int err;
-
- eeepc->platform_device = platform_device_alloc(EEEPC_WMI_FILE, -1);
- if (!eeepc->platform_device)
- return -ENOMEM;
- platform_set_drvdata(eeepc->platform_device, eeepc);
-
- err = platform_device_add(eeepc->platform_device);
- if (err)
- goto fail_platform_device;
-
- err = eeepc_wmi_sysfs_init(eeepc->platform_device);
- if (err)
- goto fail_sysfs;
- return 0;
-
-fail_sysfs:
- platform_device_del(eeepc->platform_device);
-fail_platform_device:
- platform_device_put(eeepc->platform_device);
- return err;
+ return eeepc_wmi_sysfs_init(eeepc->platform_device);
}
static void eeepc_wmi_platform_exit(struct eeepc_wmi *eeepc)
{
eeepc_wmi_sysfs_exit(eeepc->platform_device);
- platform_device_unregister(eeepc->platform_device);
}
/*
/*
* WMI Driver
*/
-static struct platform_device * __init eeepc_wmi_add(void)
+static void eeepc_dmi_check(struct eeepc_wmi *eeepc)
+{
+ const char *model;
+
+ model = dmi_get_system_info(DMI_PRODUCT_NAME);
+ if (!model)
+ return;
+
+ /*
+ * Whitelist for wlan hotplug
+ *
+ * Eeepc 1000H needs the current hotplug code to handle
+ * Fn+F2 correctly. We may add other Eeepc here later, but
+ * it seems that most of the laptops supported by eeepc-wmi
+ * don't need to be on this list
+ */
+ if (strcmp(model, "1000H") == 0) {
+ eeepc->hotplug_wireless = true;
+ pr_info("wlan hotplug enabled\n");
+ }
+}
+
+static int __init eeepc_wmi_add(struct platform_device *pdev)
{
struct eeepc_wmi *eeepc;
acpi_status status;
eeepc = kzalloc(sizeof(struct eeepc_wmi), GFP_KERNEL);
if (!eeepc)
- return ERR_PTR(-ENOMEM);
+ return -ENOMEM;
+
+ eeepc->platform_device = pdev;
+ platform_set_drvdata(eeepc->platform_device, eeepc);
+
+ eeepc->hotplug_wireless = hotplug_wireless;
+ eeepc_dmi_check(eeepc);
- /*
- * Register the platform device first. It is used as a parent for the
- * sub-devices below.
- */
err = eeepc_wmi_platform_init(eeepc);
if (err)
goto fail_platform;
if (!acpi_video_backlight_support()) {
err = eeepc_wmi_backlight_init(eeepc);
- if (err)
+ if (err && err != -ENODEV)
goto fail_backlight;
} else
pr_info("Backlight controlled by ACPI video driver\n");
if (err)
goto fail_debugfs;
- return eeepc->platform_device;
+ return 0;
fail_debugfs:
wmi_remove_notify_handler(EEEPC_WMI_EVENT_GUID);
eeepc_wmi_platform_exit(eeepc);
fail_platform:
kfree(eeepc);
- return ERR_PTR(err);
+ return err;
}
-static int eeepc_wmi_remove(struct platform_device *device)
+static int __exit eeepc_wmi_remove(struct platform_device *device)
{
struct eeepc_wmi *eeepc;
return 0;
}
+/*
+ * Platform driver - hibernate/resume callbacks
+ */
+static int eeepc_hotk_thaw(struct device *device)
+{
+ struct eeepc_wmi *eeepc = dev_get_drvdata(device);
+
+ if (eeepc->wlan_rfkill) {
+ bool wlan;
+
+ /*
+ * Work around bios bug - acpi _PTS turns off the wireless led
+ * during suspend. Normally it restores it on resume, but
+ * we should kick it ourselves in case hibernation is aborted.
+ */
+ wlan = eeepc_wmi_get_devstate_simple(EEEPC_WMI_DEVID_WLAN);
+ eeepc_wmi_set_devstate(EEEPC_WMI_DEVID_WLAN, wlan, NULL);
+ }
+
+ return 0;
+}
+
+static int eeepc_hotk_restore(struct device *device)
+{
+ struct eeepc_wmi *eeepc = dev_get_drvdata(device);
+ int bl;
+
+ /* Refresh both wlan rfkill state and pci hotplug */
+ if (eeepc->wlan_rfkill)
+ eeepc_rfkill_hotplug(eeepc);
+
+ if (eeepc->bluetooth_rfkill) {
+ bl = !eeepc_wmi_get_devstate_simple(EEEPC_WMI_DEVID_BLUETOOTH);
+ rfkill_set_sw_state(eeepc->bluetooth_rfkill, bl);
+ }
+ if (eeepc->wimax_rfkill) {
+ bl = !eeepc_wmi_get_devstate_simple(EEEPC_WMI_DEVID_WIMAX);
+ rfkill_set_sw_state(eeepc->wimax_rfkill, bl);
+ }
+ if (eeepc->wwan3g_rfkill) {
+ bl = !eeepc_wmi_get_devstate_simple(EEEPC_WMI_DEVID_WWAN3G);
+ rfkill_set_sw_state(eeepc->wwan3g_rfkill, bl);
+ }
+
+ return 0;
+}
+
+static const struct dev_pm_ops eeepc_pm_ops = {
+ .thaw = eeepc_hotk_thaw,
+ .restore = eeepc_hotk_restore,
+};
+
static struct platform_driver platform_driver = {
+ .remove = __exit_p(eeepc_wmi_remove),
.driver = {
.name = EEEPC_WMI_FILE,
.owner = THIS_MODULE,
+ .pm = &eeepc_pm_ops,
},
};
return -1;
}
-static int __init eeepc_wmi_init(void)
+static int __init eeepc_wmi_probe(struct platform_device *pdev)
{
- int err;
-
if (!wmi_has_guid(EEEPC_WMI_EVENT_GUID) ||
!wmi_has_guid(EEEPC_WMI_MGMT_GUID)) {
pr_warning("No known WMI GUID found\n");
return -ENODEV;
}
- platform_device = eeepc_wmi_add();
- if (IS_ERR(platform_device)) {
- err = PTR_ERR(platform_device);
- goto fail_eeepc_wmi;
- }
+ return eeepc_wmi_add(pdev);
+}
- err = platform_driver_register(&platform_driver);
- if (err) {
- pr_warning("Unable to register platform driver\n");
- goto fail_platform_driver;
- }
+static struct platform_device *platform_device;
+static int __init eeepc_wmi_init(void)
+{
+ platform_device = platform_create_bundle(&platform_driver,
+ eeepc_wmi_probe,
+ NULL, 0, NULL, 0);
+ if (IS_ERR(platform_device))
+ return PTR_ERR(platform_device);
return 0;
-
-fail_platform_driver:
- eeepc_wmi_remove(platform_device);
-fail_eeepc_wmi:
- return err;
}
static void __exit eeepc_wmi_exit(void)
{
- eeepc_wmi_remove(platform_device);
+ platform_device_unregister(platform_device);
platform_driver_unregister(&platform_driver);
}
projects / firefly-linux-kernel-4.4.55.git / blobdiff