/*
- * ideapad_acpi.c - Lenovo IdeaPad ACPI Extras
+ * ideapad-laptop.c - Lenovo IdeaPad ACPI Extras
*
* Copyright © 2010 Intel Corporation
* Copyright © 2010 David Woodhouse <dwmw2@infradead.org>
#include <acpi/acpi_bus.h>
#include <acpi/acpi_drivers.h>
#include <linux/rfkill.h>
+#include <linux/platform_device.h>
+#include <linux/input.h>
+#include <linux/input/sparse-keymap.h>
-#define IDEAPAD_DEV_CAMERA 0
-#define IDEAPAD_DEV_WLAN 1
-#define IDEAPAD_DEV_BLUETOOTH 2
-#define IDEAPAD_DEV_3G 3
-#define IDEAPAD_DEV_KILLSW 4
+#define IDEAPAD_RFKILL_DEV_NUM (3)
struct ideapad_private {
- acpi_handle handle;
- struct rfkill *rfk[5];
-} *ideapad_priv;
-
-static struct {
- char *name;
- int cfgbit;
- int opcode;
- int type;
-} ideapad_rfk_data[] = {
- { "ideapad_camera", 19, 0x1E, NUM_RFKILL_TYPES },
- { "ideapad_wlan", 18, 0x15, RFKILL_TYPE_WLAN },
- { "ideapad_bluetooth", 16, 0x17, RFKILL_TYPE_BLUETOOTH },
- { "ideapad_3g", 17, 0x20, RFKILL_TYPE_WWAN },
- { "ideapad_killsw", 0, 0, RFKILL_TYPE_WLAN }
+ struct rfkill *rfk[IDEAPAD_RFKILL_DEV_NUM];
+ struct platform_device *platform_device;
+ struct input_dev *inputdev;
};
+static acpi_handle ideapad_handle;
static bool no_bt_rfkill;
module_param(no_bt_rfkill, bool, 0444);
MODULE_PARM_DESC(no_bt_rfkill, "No rfkill for bluetooth.");
pr_err("timeout in write_ec_cmd\n");
return -1;
}
-/* the above is ACPI helpers */
+/*
+ * camera power
+ */
static ssize_t show_ideapad_cam(struct device *dev,
struct device_attribute *attr,
char *buf)
{
- struct ideapad_private *priv = dev_get_drvdata(dev);
- acpi_handle handle = priv->handle;
unsigned long result;
- if (read_ec_data(handle, 0x1D, &result))
+ if (read_ec_data(ideapad_handle, 0x1D, &result))
return sprintf(buf, "-1\n");
return sprintf(buf, "%lu\n", result);
}
struct device_attribute *attr,
const char *buf, size_t count)
{
- struct ideapad_private *priv = dev_get_drvdata(dev);
- acpi_handle handle = priv->handle;
int ret, state;
if (!count)
return 0;
if (sscanf(buf, "%i", &state) != 1)
return -EINVAL;
- ret = write_ec_cmd(handle, 0x1E, state);
+ ret = write_ec_cmd(ideapad_handle, 0x1E, state);
if (ret < 0)
return ret;
return count;
static DEVICE_ATTR(camera_power, 0644, show_ideapad_cam, store_ideapad_cam);
+/*
+ * Rfkill
+ */
+struct ideapad_rfk_data {
+ char *name;
+ int cfgbit;
+ int opcode;
+ int type;
+};
+
+const struct ideapad_rfk_data ideapad_rfk_data[] = {
+ { "ideapad_wlan", 18, 0x15, RFKILL_TYPE_WLAN },
+ { "ideapad_bluetooth", 16, 0x17, RFKILL_TYPE_BLUETOOTH },
+ { "ideapad_3g", 17, 0x20, RFKILL_TYPE_WWAN },
+};
+
static int ideapad_rfk_set(void *data, bool blocked)
{
- int device = (unsigned long)data;
+ unsigned long opcode = (unsigned long)data;
- if (device == IDEAPAD_DEV_KILLSW)
- return -EINVAL;
-
- return write_ec_cmd(ideapad_priv->handle,
- ideapad_rfk_data[device].opcode,
- !blocked);
+ return write_ec_cmd(ideapad_handle, opcode, !blocked);
}
static struct rfkill_ops ideapad_rfk_ops = {
static void ideapad_sync_rfk_state(struct acpi_device *adevice)
{
struct ideapad_private *priv = dev_get_drvdata(&adevice->dev);
- acpi_handle handle = priv->handle;
unsigned long hw_blocked;
int i;
- if (read_ec_data(handle, 0x23, &hw_blocked))
+ if (read_ec_data(ideapad_handle, 0x23, &hw_blocked))
return;
hw_blocked = !hw_blocked;
- for (i = IDEAPAD_DEV_WLAN; i <= IDEAPAD_DEV_KILLSW; i++)
+ for (i = 0; i < IDEAPAD_RFKILL_DEV_NUM; i++)
if (priv->rfk[i])
rfkill_set_hw_state(priv->rfk[i], hw_blocked);
}
-static int ideapad_register_rfkill(struct acpi_device *adevice, int dev)
+static int __devinit ideapad_register_rfkill(struct acpi_device *adevice,
+ int dev)
{
struct ideapad_private *priv = dev_get_drvdata(&adevice->dev);
int ret;
if (no_bt_rfkill &&
(ideapad_rfk_data[dev].type == RFKILL_TYPE_BLUETOOTH)) {
/* Force to enable bluetooth when no_bt_rfkill=1 */
- write_ec_cmd(ideapad_priv->handle,
+ write_ec_cmd(ideapad_handle,
ideapad_rfk_data[dev].opcode, 1);
return 0;
}
if (!priv->rfk[dev])
return -ENOMEM;
- if (read_ec_data(ideapad_priv->handle, ideapad_rfk_data[dev].opcode-1,
+ if (read_ec_data(ideapad_handle, ideapad_rfk_data[dev].opcode-1,
&sw_blocked)) {
rfkill_init_sw_state(priv->rfk[dev], 0);
} else {
return 0;
}
-static void ideapad_unregister_rfkill(struct acpi_device *adevice, int dev)
+static void __devexit ideapad_unregister_rfkill(struct acpi_device *adevice,
+ int dev)
{
struct ideapad_private *priv = dev_get_drvdata(&adevice->dev);
rfkill_destroy(priv->rfk[dev]);
}
+/*
+ * Platform device
+ */
+static struct attribute *ideapad_attributes[] = {
+ &dev_attr_camera_power.attr,
+ NULL
+};
+
+static struct attribute_group ideapad_attribute_group = {
+ .attrs = ideapad_attributes
+};
+
+static int __devinit ideapad_platform_init(struct ideapad_private *priv)
+{
+ int result;
+
+ priv->platform_device = platform_device_alloc("ideapad", -1);
+ if (!priv->platform_device)
+ return -ENOMEM;
+ platform_set_drvdata(priv->platform_device, priv);
+
+ result = platform_device_add(priv->platform_device);
+ if (result)
+ goto fail_platform_device;
+
+ result = sysfs_create_group(&priv->platform_device->dev.kobj,
+ &ideapad_attribute_group);
+ if (result)
+ goto fail_sysfs;
+ return 0;
+
+fail_sysfs:
+ platform_device_del(priv->platform_device);
+fail_platform_device:
+ platform_device_put(priv->platform_device);
+ return result;
+}
+
+static void ideapad_platform_exit(struct ideapad_private *priv)
+{
+ sysfs_remove_group(&priv->platform_device->dev.kobj,
+ &ideapad_attribute_group);
+ platform_device_unregister(priv->platform_device);
+}
+
+/*
+ * input device
+ */
+static const struct key_entry ideapad_keymap[] = {
+ { KE_KEY, 0x06, { KEY_SWITCHVIDEOMODE } },
+ { KE_KEY, 0x0D, { KEY_WLAN } },
+ { KE_END, 0 },
+};
+
+static int __devinit ideapad_input_init(struct ideapad_private *priv)
+{
+ struct input_dev *inputdev;
+ int error;
+
+ inputdev = input_allocate_device();
+ if (!inputdev) {
+ pr_info("Unable to allocate input device\n");
+ return -ENOMEM;
+ }
+
+ inputdev->name = "Ideapad extra buttons";
+ inputdev->phys = "ideapad/input0";
+ inputdev->id.bustype = BUS_HOST;
+ inputdev->dev.parent = &priv->platform_device->dev;
+
+ error = sparse_keymap_setup(inputdev, ideapad_keymap, NULL);
+ if (error) {
+ pr_err("Unable to setup input device keymap\n");
+ goto err_free_dev;
+ }
+
+ error = input_register_device(inputdev);
+ if (error) {
+ pr_err("Unable to register input device\n");
+ goto err_free_keymap;
+ }
+
+ priv->inputdev = inputdev;
+ return 0;
+
+err_free_keymap:
+ sparse_keymap_free(inputdev);
+err_free_dev:
+ input_free_device(inputdev);
+ return error;
+}
+
+static void __devexit ideapad_input_exit(struct ideapad_private *priv)
+{
+ sparse_keymap_free(priv->inputdev);
+ input_unregister_device(priv->inputdev);
+ priv->inputdev = NULL;
+}
+
+static void ideapad_input_report(struct ideapad_private *priv,
+ unsigned long scancode)
+{
+ sparse_keymap_report_event(priv->inputdev, scancode, 1, true);
+}
+
+/*
+ * module init/exit
+ */
static const struct acpi_device_id ideapad_device_ids[] = {
{ "VPC2004", 0},
{ "", 0},
};
MODULE_DEVICE_TABLE(acpi, ideapad_device_ids);
-static int ideapad_acpi_add(struct acpi_device *adevice)
+static int __devinit ideapad_acpi_add(struct acpi_device *adevice)
{
- int i, cfg;
- int devs_present[5];
+ int ret, i, cfg;
struct ideapad_private *priv;
if (read_method_int(adevice->handle, "_CFG", &cfg))
return -ENODEV;
- for (i = IDEAPAD_DEV_CAMERA; i < IDEAPAD_DEV_KILLSW; i++) {
- if (test_bit(ideapad_rfk_data[i].cfgbit, (unsigned long *)&cfg))
- devs_present[i] = 1;
- else
- devs_present[i] = 0;
- }
-
- /* The hardware switch is always present */
- devs_present[IDEAPAD_DEV_KILLSW] = 1;
-
priv = kzalloc(sizeof(*priv), GFP_KERNEL);
if (!priv)
return -ENOMEM;
+ dev_set_drvdata(&adevice->dev, priv);
+ ideapad_handle = adevice->handle;
- if (devs_present[IDEAPAD_DEV_CAMERA]) {
- int ret = device_create_file(&adevice->dev, &dev_attr_camera_power);
- if (ret) {
- kfree(priv);
- return ret;
- }
- }
+ ret = ideapad_platform_init(priv);
+ if (ret)
+ goto platform_failed;
- priv->handle = adevice->handle;
- dev_set_drvdata(&adevice->dev, priv);
- ideapad_priv = priv;
- for (i = IDEAPAD_DEV_WLAN; i <= IDEAPAD_DEV_KILLSW; i++) {
- if (!devs_present[i])
- continue;
+ ret = ideapad_input_init(priv);
+ if (ret)
+ goto input_failed;
- ideapad_register_rfkill(adevice, i);
+ for (i = 0; i < IDEAPAD_RFKILL_DEV_NUM; i++) {
+ if (test_bit(ideapad_rfk_data[i].cfgbit, (unsigned long *)&cfg))
+ ideapad_register_rfkill(adevice, i);
+ else
+ priv->rfk[i] = NULL;
}
ideapad_sync_rfk_state(adevice);
+
return 0;
+
+input_failed:
+ ideapad_platform_exit(priv);
+platform_failed:
+ kfree(priv);
+ return ret;
}
-static int ideapad_acpi_remove(struct acpi_device *adevice, int type)
+static int __devexit ideapad_acpi_remove(struct acpi_device *adevice, int type)
{
struct ideapad_private *priv = dev_get_drvdata(&adevice->dev);
int i;
- device_remove_file(&adevice->dev, &dev_attr_camera_power);
-
- for (i = IDEAPAD_DEV_WLAN; i <= IDEAPAD_DEV_KILLSW; i++)
+ for (i = 0; i < IDEAPAD_RFKILL_DEV_NUM; i++)
ideapad_unregister_rfkill(adevice, i);
-
+ ideapad_input_exit(priv);
+ ideapad_platform_exit(priv);
dev_set_drvdata(&adevice->dev, NULL);
kfree(priv);
+
return 0;
}
static void ideapad_acpi_notify(struct acpi_device *adevice, u32 event)
{
+ struct ideapad_private *priv = dev_get_drvdata(&adevice->dev);
acpi_handle handle = adevice->handle;
unsigned long vpc1, vpc2, vpc_bit;
if (test_bit(vpc_bit, &vpc1)) {
if (vpc_bit == 9)
ideapad_sync_rfk_state(adevice);
+ else
+ ideapad_input_report(priv, vpc_bit);
}
}
}
.owner = THIS_MODULE,
};
-
static int __init ideapad_acpi_module_init(void)
{
- acpi_bus_register_driver(&ideapad_acpi_driver);
-
- return 0;
+ return acpi_bus_register_driver(&ideapad_acpi_driver);
}
-
static void __exit ideapad_acpi_module_exit(void)
{
acpi_bus_unregister_driver(&ideapad_acpi_driver);
-
}
MODULE_AUTHOR("David Woodhouse <dwmw2@infradead.org>");
git.openpandora.org / pandora-kernel.git / blobdiff