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-rw-r--r--drivers/platform/x86/classmate-laptop.c1146
1 files changed, 1146 insertions, 0 deletions
diff --git a/drivers/platform/x86/classmate-laptop.c b/drivers/platform/x86/classmate-laptop.c
new file mode 100644
index 0000000000..2edaea2492
--- /dev/null
+++ b/drivers/platform/x86/classmate-laptop.c
@@ -0,0 +1,1146 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
+/*
+ * Copyright (C) 2009 Thadeu Lima de Souza Cascardo <cascardo@holoscopio.com>
+ */
+
+
+#include <linux/init.h>
+#include <linux/module.h>
+#include <linux/slab.h>
+#include <linux/workqueue.h>
+#include <linux/acpi.h>
+#include <linux/backlight.h>
+#include <linux/input.h>
+#include <linux/rfkill.h>
+
+MODULE_LICENSE("GPL");
+
+struct cmpc_accel {
+ int sensitivity;
+ int g_select;
+ int inputdev_state;
+};
+
+#define CMPC_ACCEL_DEV_STATE_CLOSED 0
+#define CMPC_ACCEL_DEV_STATE_OPEN 1
+
+#define CMPC_ACCEL_SENSITIVITY_DEFAULT 5
+#define CMPC_ACCEL_G_SELECT_DEFAULT 0
+
+#define CMPC_ACCEL_HID "ACCE0000"
+#define CMPC_ACCEL_HID_V4 "ACCE0001"
+#define CMPC_TABLET_HID "TBLT0000"
+#define CMPC_IPML_HID "IPML200"
+#define CMPC_KEYS_HID "FNBT0000"
+
+/*
+ * Generic input device code.
+ */
+
+typedef void (*input_device_init)(struct input_dev *dev);
+
+static int cmpc_add_acpi_notify_device(struct acpi_device *acpi, char *name,
+ input_device_init idev_init)
+{
+ struct input_dev *inputdev;
+ int error;
+
+ inputdev = input_allocate_device();
+ if (!inputdev)
+ return -ENOMEM;
+ inputdev->name = name;
+ inputdev->dev.parent = &acpi->dev;
+ idev_init(inputdev);
+ error = input_register_device(inputdev);
+ if (error) {
+ input_free_device(inputdev);
+ return error;
+ }
+ dev_set_drvdata(&acpi->dev, inputdev);
+ return 0;
+}
+
+static int cmpc_remove_acpi_notify_device(struct acpi_device *acpi)
+{
+ struct input_dev *inputdev = dev_get_drvdata(&acpi->dev);
+ input_unregister_device(inputdev);
+ return 0;
+}
+
+/*
+ * Accelerometer code for Classmate V4
+ */
+static acpi_status cmpc_start_accel_v4(acpi_handle handle)
+{
+ union acpi_object param[4];
+ struct acpi_object_list input;
+ acpi_status status;
+
+ param[0].type = ACPI_TYPE_INTEGER;
+ param[0].integer.value = 0x3;
+ param[1].type = ACPI_TYPE_INTEGER;
+ param[1].integer.value = 0;
+ param[2].type = ACPI_TYPE_INTEGER;
+ param[2].integer.value = 0;
+ param[3].type = ACPI_TYPE_INTEGER;
+ param[3].integer.value = 0;
+ input.count = 4;
+ input.pointer = param;
+ status = acpi_evaluate_object(handle, "ACMD", &input, NULL);
+ return status;
+}
+
+static acpi_status cmpc_stop_accel_v4(acpi_handle handle)
+{
+ union acpi_object param[4];
+ struct acpi_object_list input;
+ acpi_status status;
+
+ param[0].type = ACPI_TYPE_INTEGER;
+ param[0].integer.value = 0x4;
+ param[1].type = ACPI_TYPE_INTEGER;
+ param[1].integer.value = 0;
+ param[2].type = ACPI_TYPE_INTEGER;
+ param[2].integer.value = 0;
+ param[3].type = ACPI_TYPE_INTEGER;
+ param[3].integer.value = 0;
+ input.count = 4;
+ input.pointer = param;
+ status = acpi_evaluate_object(handle, "ACMD", &input, NULL);
+ return status;
+}
+
+static acpi_status cmpc_accel_set_sensitivity_v4(acpi_handle handle, int val)
+{
+ union acpi_object param[4];
+ struct acpi_object_list input;
+
+ param[0].type = ACPI_TYPE_INTEGER;
+ param[0].integer.value = 0x02;
+ param[1].type = ACPI_TYPE_INTEGER;
+ param[1].integer.value = val;
+ param[2].type = ACPI_TYPE_INTEGER;
+ param[2].integer.value = 0;
+ param[3].type = ACPI_TYPE_INTEGER;
+ param[3].integer.value = 0;
+ input.count = 4;
+ input.pointer = param;
+ return acpi_evaluate_object(handle, "ACMD", &input, NULL);
+}
+
+static acpi_status cmpc_accel_set_g_select_v4(acpi_handle handle, int val)
+{
+ union acpi_object param[4];
+ struct acpi_object_list input;
+
+ param[0].type = ACPI_TYPE_INTEGER;
+ param[0].integer.value = 0x05;
+ param[1].type = ACPI_TYPE_INTEGER;
+ param[1].integer.value = val;
+ param[2].type = ACPI_TYPE_INTEGER;
+ param[2].integer.value = 0;
+ param[3].type = ACPI_TYPE_INTEGER;
+ param[3].integer.value = 0;
+ input.count = 4;
+ input.pointer = param;
+ return acpi_evaluate_object(handle, "ACMD", &input, NULL);
+}
+
+static acpi_status cmpc_get_accel_v4(acpi_handle handle,
+ int16_t *x,
+ int16_t *y,
+ int16_t *z)
+{
+ union acpi_object param[4];
+ struct acpi_object_list input;
+ struct acpi_buffer output = { ACPI_ALLOCATE_BUFFER, NULL };
+ int16_t *locs;
+ acpi_status status;
+
+ param[0].type = ACPI_TYPE_INTEGER;
+ param[0].integer.value = 0x01;
+ param[1].type = ACPI_TYPE_INTEGER;
+ param[1].integer.value = 0;
+ param[2].type = ACPI_TYPE_INTEGER;
+ param[2].integer.value = 0;
+ param[3].type = ACPI_TYPE_INTEGER;
+ param[3].integer.value = 0;
+ input.count = 4;
+ input.pointer = param;
+ status = acpi_evaluate_object(handle, "ACMD", &input, &output);
+ if (ACPI_SUCCESS(status)) {
+ union acpi_object *obj;
+ obj = output.pointer;
+ locs = (int16_t *) obj->buffer.pointer;
+ *x = locs[0];
+ *y = locs[1];
+ *z = locs[2];
+ kfree(output.pointer);
+ }
+ return status;
+}
+
+static void cmpc_accel_handler_v4(struct acpi_device *dev, u32 event)
+{
+ if (event == 0x81) {
+ int16_t x, y, z;
+ acpi_status status;
+
+ status = cmpc_get_accel_v4(dev->handle, &x, &y, &z);
+ if (ACPI_SUCCESS(status)) {
+ struct input_dev *inputdev = dev_get_drvdata(&dev->dev);
+
+ input_report_abs(inputdev, ABS_X, x);
+ input_report_abs(inputdev, ABS_Y, y);
+ input_report_abs(inputdev, ABS_Z, z);
+ input_sync(inputdev);
+ }
+ }
+}
+
+static ssize_t cmpc_accel_sensitivity_show_v4(struct device *dev,
+ struct device_attribute *attr,
+ char *buf)
+{
+ struct acpi_device *acpi;
+ struct input_dev *inputdev;
+ struct cmpc_accel *accel;
+
+ acpi = to_acpi_device(dev);
+ inputdev = dev_get_drvdata(&acpi->dev);
+ accel = dev_get_drvdata(&inputdev->dev);
+
+ return sprintf(buf, "%d\n", accel->sensitivity);
+}
+
+static ssize_t cmpc_accel_sensitivity_store_v4(struct device *dev,
+ struct device_attribute *attr,
+ const char *buf, size_t count)
+{
+ struct acpi_device *acpi;
+ struct input_dev *inputdev;
+ struct cmpc_accel *accel;
+ unsigned long sensitivity;
+ int r;
+
+ acpi = to_acpi_device(dev);
+ inputdev = dev_get_drvdata(&acpi->dev);
+ accel = dev_get_drvdata(&inputdev->dev);
+
+ r = kstrtoul(buf, 0, &sensitivity);
+ if (r)
+ return r;
+
+ /* sensitivity must be between 1 and 127 */
+ if (sensitivity < 1 || sensitivity > 127)
+ return -EINVAL;
+
+ accel->sensitivity = sensitivity;
+ cmpc_accel_set_sensitivity_v4(acpi->handle, sensitivity);
+
+ return strnlen(buf, count);
+}
+
+static struct device_attribute cmpc_accel_sensitivity_attr_v4 = {
+ .attr = { .name = "sensitivity", .mode = 0660 },
+ .show = cmpc_accel_sensitivity_show_v4,
+ .store = cmpc_accel_sensitivity_store_v4
+};
+
+static ssize_t cmpc_accel_g_select_show_v4(struct device *dev,
+ struct device_attribute *attr,
+ char *buf)
+{
+ struct acpi_device *acpi;
+ struct input_dev *inputdev;
+ struct cmpc_accel *accel;
+
+ acpi = to_acpi_device(dev);
+ inputdev = dev_get_drvdata(&acpi->dev);
+ accel = dev_get_drvdata(&inputdev->dev);
+
+ return sprintf(buf, "%d\n", accel->g_select);
+}
+
+static ssize_t cmpc_accel_g_select_store_v4(struct device *dev,
+ struct device_attribute *attr,
+ const char *buf, size_t count)
+{
+ struct acpi_device *acpi;
+ struct input_dev *inputdev;
+ struct cmpc_accel *accel;
+ unsigned long g_select;
+ int r;
+
+ acpi = to_acpi_device(dev);
+ inputdev = dev_get_drvdata(&acpi->dev);
+ accel = dev_get_drvdata(&inputdev->dev);
+
+ r = kstrtoul(buf, 0, &g_select);
+ if (r)
+ return r;
+
+ /* 0 means 1.5g, 1 means 6g, everything else is wrong */
+ if (g_select != 0 && g_select != 1)
+ return -EINVAL;
+
+ accel->g_select = g_select;
+ cmpc_accel_set_g_select_v4(acpi->handle, g_select);
+
+ return strnlen(buf, count);
+}
+
+static struct device_attribute cmpc_accel_g_select_attr_v4 = {
+ .attr = { .name = "g_select", .mode = 0660 },
+ .show = cmpc_accel_g_select_show_v4,
+ .store = cmpc_accel_g_select_store_v4
+};
+
+static int cmpc_accel_open_v4(struct input_dev *input)
+{
+ struct acpi_device *acpi;
+ struct cmpc_accel *accel;
+
+ acpi = to_acpi_device(input->dev.parent);
+ accel = dev_get_drvdata(&input->dev);
+
+ cmpc_accel_set_sensitivity_v4(acpi->handle, accel->sensitivity);
+ cmpc_accel_set_g_select_v4(acpi->handle, accel->g_select);
+
+ if (ACPI_SUCCESS(cmpc_start_accel_v4(acpi->handle))) {
+ accel->inputdev_state = CMPC_ACCEL_DEV_STATE_OPEN;
+ return 0;
+ }
+ return -EIO;
+}
+
+static void cmpc_accel_close_v4(struct input_dev *input)
+{
+ struct acpi_device *acpi;
+ struct cmpc_accel *accel;
+
+ acpi = to_acpi_device(input->dev.parent);
+ accel = dev_get_drvdata(&input->dev);
+
+ cmpc_stop_accel_v4(acpi->handle);
+ accel->inputdev_state = CMPC_ACCEL_DEV_STATE_CLOSED;
+}
+
+static void cmpc_accel_idev_init_v4(struct input_dev *inputdev)
+{
+ set_bit(EV_ABS, inputdev->evbit);
+ input_set_abs_params(inputdev, ABS_X, -255, 255, 16, 0);
+ input_set_abs_params(inputdev, ABS_Y, -255, 255, 16, 0);
+ input_set_abs_params(inputdev, ABS_Z, -255, 255, 16, 0);
+ inputdev->open = cmpc_accel_open_v4;
+ inputdev->close = cmpc_accel_close_v4;
+}
+
+#ifdef CONFIG_PM_SLEEP
+static int cmpc_accel_suspend_v4(struct device *dev)
+{
+ struct input_dev *inputdev;
+ struct cmpc_accel *accel;
+
+ inputdev = dev_get_drvdata(dev);
+ accel = dev_get_drvdata(&inputdev->dev);
+
+ if (accel->inputdev_state == CMPC_ACCEL_DEV_STATE_OPEN)
+ return cmpc_stop_accel_v4(to_acpi_device(dev)->handle);
+
+ return 0;
+}
+
+static int cmpc_accel_resume_v4(struct device *dev)
+{
+ struct input_dev *inputdev;
+ struct cmpc_accel *accel;
+
+ inputdev = dev_get_drvdata(dev);
+ accel = dev_get_drvdata(&inputdev->dev);
+
+ if (accel->inputdev_state == CMPC_ACCEL_DEV_STATE_OPEN) {
+ cmpc_accel_set_sensitivity_v4(to_acpi_device(dev)->handle,
+ accel->sensitivity);
+ cmpc_accel_set_g_select_v4(to_acpi_device(dev)->handle,
+ accel->g_select);
+
+ if (ACPI_FAILURE(cmpc_start_accel_v4(to_acpi_device(dev)->handle)))
+ return -EIO;
+ }
+
+ return 0;
+}
+#endif
+
+static int cmpc_accel_add_v4(struct acpi_device *acpi)
+{
+ int error;
+ struct input_dev *inputdev;
+ struct cmpc_accel *accel;
+
+ accel = kmalloc(sizeof(*accel), GFP_KERNEL);
+ if (!accel)
+ return -ENOMEM;
+
+ accel->inputdev_state = CMPC_ACCEL_DEV_STATE_CLOSED;
+
+ accel->sensitivity = CMPC_ACCEL_SENSITIVITY_DEFAULT;
+ cmpc_accel_set_sensitivity_v4(acpi->handle, accel->sensitivity);
+
+ error = device_create_file(&acpi->dev, &cmpc_accel_sensitivity_attr_v4);
+ if (error)
+ goto failed_sensitivity;
+
+ accel->g_select = CMPC_ACCEL_G_SELECT_DEFAULT;
+ cmpc_accel_set_g_select_v4(acpi->handle, accel->g_select);
+
+ error = device_create_file(&acpi->dev, &cmpc_accel_g_select_attr_v4);
+ if (error)
+ goto failed_g_select;
+
+ error = cmpc_add_acpi_notify_device(acpi, "cmpc_accel_v4",
+ cmpc_accel_idev_init_v4);
+ if (error)
+ goto failed_input;
+
+ inputdev = dev_get_drvdata(&acpi->dev);
+ dev_set_drvdata(&inputdev->dev, accel);
+
+ return 0;
+
+failed_input:
+ device_remove_file(&acpi->dev, &cmpc_accel_g_select_attr_v4);
+failed_g_select:
+ device_remove_file(&acpi->dev, &cmpc_accel_sensitivity_attr_v4);
+failed_sensitivity:
+ kfree(accel);
+ return error;
+}
+
+static void cmpc_accel_remove_v4(struct acpi_device *acpi)
+{
+ device_remove_file(&acpi->dev, &cmpc_accel_sensitivity_attr_v4);
+ device_remove_file(&acpi->dev, &cmpc_accel_g_select_attr_v4);
+ cmpc_remove_acpi_notify_device(acpi);
+}
+
+static SIMPLE_DEV_PM_OPS(cmpc_accel_pm, cmpc_accel_suspend_v4,
+ cmpc_accel_resume_v4);
+
+static const struct acpi_device_id cmpc_accel_device_ids_v4[] = {
+ {CMPC_ACCEL_HID_V4, 0},
+ {"", 0}
+};
+
+static struct acpi_driver cmpc_accel_acpi_driver_v4 = {
+ .owner = THIS_MODULE,
+ .name = "cmpc_accel_v4",
+ .class = "cmpc_accel_v4",
+ .ids = cmpc_accel_device_ids_v4,
+ .ops = {
+ .add = cmpc_accel_add_v4,
+ .remove = cmpc_accel_remove_v4,
+ .notify = cmpc_accel_handler_v4,
+ },
+ .drv.pm = &cmpc_accel_pm,
+};
+
+
+/*
+ * Accelerometer code for Classmate versions prior to V4
+ */
+static acpi_status cmpc_start_accel(acpi_handle handle)
+{
+ union acpi_object param[2];
+ struct acpi_object_list input;
+ acpi_status status;
+
+ param[0].type = ACPI_TYPE_INTEGER;
+ param[0].integer.value = 0x3;
+ param[1].type = ACPI_TYPE_INTEGER;
+ input.count = 2;
+ input.pointer = param;
+ status = acpi_evaluate_object(handle, "ACMD", &input, NULL);
+ return status;
+}
+
+static acpi_status cmpc_stop_accel(acpi_handle handle)
+{
+ union acpi_object param[2];
+ struct acpi_object_list input;
+ acpi_status status;
+
+ param[0].type = ACPI_TYPE_INTEGER;
+ param[0].integer.value = 0x4;
+ param[1].type = ACPI_TYPE_INTEGER;
+ input.count = 2;
+ input.pointer = param;
+ status = acpi_evaluate_object(handle, "ACMD", &input, NULL);
+ return status;
+}
+
+static acpi_status cmpc_accel_set_sensitivity(acpi_handle handle, int val)
+{
+ union acpi_object param[2];
+ struct acpi_object_list input;
+
+ param[0].type = ACPI_TYPE_INTEGER;
+ param[0].integer.value = 0x02;
+ param[1].type = ACPI_TYPE_INTEGER;
+ param[1].integer.value = val;
+ input.count = 2;
+ input.pointer = param;
+ return acpi_evaluate_object(handle, "ACMD", &input, NULL);
+}
+
+static acpi_status cmpc_get_accel(acpi_handle handle,
+ unsigned char *x,
+ unsigned char *y,
+ unsigned char *z)
+{
+ union acpi_object param[2];
+ struct acpi_object_list input;
+ struct acpi_buffer output = { ACPI_ALLOCATE_BUFFER, NULL };
+ unsigned char *locs;
+ acpi_status status;
+
+ param[0].type = ACPI_TYPE_INTEGER;
+ param[0].integer.value = 0x01;
+ param[1].type = ACPI_TYPE_INTEGER;
+ input.count = 2;
+ input.pointer = param;
+ status = acpi_evaluate_object(handle, "ACMD", &input, &output);
+ if (ACPI_SUCCESS(status)) {
+ union acpi_object *obj;
+ obj = output.pointer;
+ locs = obj->buffer.pointer;
+ *x = locs[0];
+ *y = locs[1];
+ *z = locs[2];
+ kfree(output.pointer);
+ }
+ return status;
+}
+
+static void cmpc_accel_handler(struct acpi_device *dev, u32 event)
+{
+ if (event == 0x81) {
+ unsigned char x, y, z;
+ acpi_status status;
+
+ status = cmpc_get_accel(dev->handle, &x, &y, &z);
+ if (ACPI_SUCCESS(status)) {
+ struct input_dev *inputdev = dev_get_drvdata(&dev->dev);
+
+ input_report_abs(inputdev, ABS_X, x);
+ input_report_abs(inputdev, ABS_Y, y);
+ input_report_abs(inputdev, ABS_Z, z);
+ input_sync(inputdev);
+ }
+ }
+}
+
+static ssize_t cmpc_accel_sensitivity_show(struct device *dev,
+ struct device_attribute *attr,
+ char *buf)
+{
+ struct acpi_device *acpi;
+ struct input_dev *inputdev;
+ struct cmpc_accel *accel;
+
+ acpi = to_acpi_device(dev);
+ inputdev = dev_get_drvdata(&acpi->dev);
+ accel = dev_get_drvdata(&inputdev->dev);
+
+ return sprintf(buf, "%d\n", accel->sensitivity);
+}
+
+static ssize_t cmpc_accel_sensitivity_store(struct device *dev,
+ struct device_attribute *attr,
+ const char *buf, size_t count)
+{
+ struct acpi_device *acpi;
+ struct input_dev *inputdev;
+ struct cmpc_accel *accel;
+ unsigned long sensitivity;
+ int r;
+
+ acpi = to_acpi_device(dev);
+ inputdev = dev_get_drvdata(&acpi->dev);
+ accel = dev_get_drvdata(&inputdev->dev);
+
+ r = kstrtoul(buf, 0, &sensitivity);
+ if (r)
+ return r;
+
+ accel->sensitivity = sensitivity;
+ cmpc_accel_set_sensitivity(acpi->handle, sensitivity);
+
+ return strnlen(buf, count);
+}
+
+static struct device_attribute cmpc_accel_sensitivity_attr = {
+ .attr = { .name = "sensitivity", .mode = 0660 },
+ .show = cmpc_accel_sensitivity_show,
+ .store = cmpc_accel_sensitivity_store
+};
+
+static int cmpc_accel_open(struct input_dev *input)
+{
+ struct acpi_device *acpi;
+
+ acpi = to_acpi_device(input->dev.parent);
+ if (ACPI_SUCCESS(cmpc_start_accel(acpi->handle)))
+ return 0;
+ return -EIO;
+}
+
+static void cmpc_accel_close(struct input_dev *input)
+{
+ struct acpi_device *acpi;
+
+ acpi = to_acpi_device(input->dev.parent);
+ cmpc_stop_accel(acpi->handle);
+}
+
+static void cmpc_accel_idev_init(struct input_dev *inputdev)
+{
+ set_bit(EV_ABS, inputdev->evbit);
+ input_set_abs_params(inputdev, ABS_X, 0, 255, 8, 0);
+ input_set_abs_params(inputdev, ABS_Y, 0, 255, 8, 0);
+ input_set_abs_params(inputdev, ABS_Z, 0, 255, 8, 0);
+ inputdev->open = cmpc_accel_open;
+ inputdev->close = cmpc_accel_close;
+}
+
+static int cmpc_accel_add(struct acpi_device *acpi)
+{
+ int error;
+ struct input_dev *inputdev;
+ struct cmpc_accel *accel;
+
+ accel = kmalloc(sizeof(*accel), GFP_KERNEL);
+ if (!accel)
+ return -ENOMEM;
+
+ accel->sensitivity = CMPC_ACCEL_SENSITIVITY_DEFAULT;
+ cmpc_accel_set_sensitivity(acpi->handle, accel->sensitivity);
+
+ error = device_create_file(&acpi->dev, &cmpc_accel_sensitivity_attr);
+ if (error)
+ goto failed_file;
+
+ error = cmpc_add_acpi_notify_device(acpi, "cmpc_accel",
+ cmpc_accel_idev_init);
+ if (error)
+ goto failed_input;
+
+ inputdev = dev_get_drvdata(&acpi->dev);
+ dev_set_drvdata(&inputdev->dev, accel);
+
+ return 0;
+
+failed_input:
+ device_remove_file(&acpi->dev, &cmpc_accel_sensitivity_attr);
+failed_file:
+ kfree(accel);
+ return error;
+}
+
+static void cmpc_accel_remove(struct acpi_device *acpi)
+{
+ device_remove_file(&acpi->dev, &cmpc_accel_sensitivity_attr);
+ cmpc_remove_acpi_notify_device(acpi);
+}
+
+static const struct acpi_device_id cmpc_accel_device_ids[] = {
+ {CMPC_ACCEL_HID, 0},
+ {"", 0}
+};
+
+static struct acpi_driver cmpc_accel_acpi_driver = {
+ .owner = THIS_MODULE,
+ .name = "cmpc_accel",
+ .class = "cmpc_accel",
+ .ids = cmpc_accel_device_ids,
+ .ops = {
+ .add = cmpc_accel_add,
+ .remove = cmpc_accel_remove,
+ .notify = cmpc_accel_handler,
+ }
+};
+
+
+/*
+ * Tablet mode code.
+ */
+static acpi_status cmpc_get_tablet(acpi_handle handle,
+ unsigned long long *value)
+{
+ union acpi_object param;
+ struct acpi_object_list input;
+ unsigned long long output;
+ acpi_status status;
+
+ param.type = ACPI_TYPE_INTEGER;
+ param.integer.value = 0x01;
+ input.count = 1;
+ input.pointer = &param;
+ status = acpi_evaluate_integer(handle, "TCMD", &input, &output);
+ if (ACPI_SUCCESS(status))
+ *value = output;
+ return status;
+}
+
+static void cmpc_tablet_handler(struct acpi_device *dev, u32 event)
+{
+ unsigned long long val = 0;
+ struct input_dev *inputdev = dev_get_drvdata(&dev->dev);
+
+ if (event == 0x81) {
+ if (ACPI_SUCCESS(cmpc_get_tablet(dev->handle, &val))) {
+ input_report_switch(inputdev, SW_TABLET_MODE, !val);
+ input_sync(inputdev);
+ }
+ }
+}
+
+static void cmpc_tablet_idev_init(struct input_dev *inputdev)
+{
+ unsigned long long val = 0;
+ struct acpi_device *acpi;
+
+ set_bit(EV_SW, inputdev->evbit);
+ set_bit(SW_TABLET_MODE, inputdev->swbit);
+
+ acpi = to_acpi_device(inputdev->dev.parent);
+ if (ACPI_SUCCESS(cmpc_get_tablet(acpi->handle, &val))) {
+ input_report_switch(inputdev, SW_TABLET_MODE, !val);
+ input_sync(inputdev);
+ }
+}
+
+static int cmpc_tablet_add(struct acpi_device *acpi)
+{
+ return cmpc_add_acpi_notify_device(acpi, "cmpc_tablet",
+ cmpc_tablet_idev_init);
+}
+
+static void cmpc_tablet_remove(struct acpi_device *acpi)
+{
+ cmpc_remove_acpi_notify_device(acpi);
+}
+
+#ifdef CONFIG_PM_SLEEP
+static int cmpc_tablet_resume(struct device *dev)
+{
+ struct input_dev *inputdev = dev_get_drvdata(dev);
+
+ unsigned long long val = 0;
+ if (ACPI_SUCCESS(cmpc_get_tablet(to_acpi_device(dev)->handle, &val))) {
+ input_report_switch(inputdev, SW_TABLET_MODE, !val);
+ input_sync(inputdev);
+ }
+ return 0;
+}
+#endif
+
+static SIMPLE_DEV_PM_OPS(cmpc_tablet_pm, NULL, cmpc_tablet_resume);
+
+static const struct acpi_device_id cmpc_tablet_device_ids[] = {
+ {CMPC_TABLET_HID, 0},
+ {"", 0}
+};
+
+static struct acpi_driver cmpc_tablet_acpi_driver = {
+ .owner = THIS_MODULE,
+ .name = "cmpc_tablet",
+ .class = "cmpc_tablet",
+ .ids = cmpc_tablet_device_ids,
+ .ops = {
+ .add = cmpc_tablet_add,
+ .remove = cmpc_tablet_remove,
+ .notify = cmpc_tablet_handler,
+ },
+ .drv.pm = &cmpc_tablet_pm,
+};
+
+
+/*
+ * Backlight code.
+ */
+
+static acpi_status cmpc_get_brightness(acpi_handle handle,
+ unsigned long long *value)
+{
+ union acpi_object param;
+ struct acpi_object_list input;
+ unsigned long long output;
+ acpi_status status;
+
+ param.type = ACPI_TYPE_INTEGER;
+ param.integer.value = 0xC0;
+ input.count = 1;
+ input.pointer = &param;
+ status = acpi_evaluate_integer(handle, "GRDI", &input, &output);
+ if (ACPI_SUCCESS(status))
+ *value = output;
+ return status;
+}
+
+static acpi_status cmpc_set_brightness(acpi_handle handle,
+ unsigned long long value)
+{
+ union acpi_object param[2];
+ struct acpi_object_list input;
+ acpi_status status;
+ unsigned long long output;
+
+ param[0].type = ACPI_TYPE_INTEGER;
+ param[0].integer.value = 0xC0;
+ param[1].type = ACPI_TYPE_INTEGER;
+ param[1].integer.value = value;
+ input.count = 2;
+ input.pointer = param;
+ status = acpi_evaluate_integer(handle, "GWRI", &input, &output);
+ return status;
+}
+
+static int cmpc_bl_get_brightness(struct backlight_device *bd)
+{
+ acpi_status status;
+ acpi_handle handle;
+ unsigned long long brightness;
+
+ handle = bl_get_data(bd);
+ status = cmpc_get_brightness(handle, &brightness);
+ if (ACPI_SUCCESS(status))
+ return brightness;
+ else
+ return -1;
+}
+
+static int cmpc_bl_update_status(struct backlight_device *bd)
+{
+ acpi_status status;
+ acpi_handle handle;
+
+ handle = bl_get_data(bd);
+ status = cmpc_set_brightness(handle, bd->props.brightness);
+ if (ACPI_SUCCESS(status))
+ return 0;
+ else
+ return -1;
+}
+
+static const struct backlight_ops cmpc_bl_ops = {
+ .get_brightness = cmpc_bl_get_brightness,
+ .update_status = cmpc_bl_update_status
+};
+
+/*
+ * RFKILL code.
+ */
+
+static acpi_status cmpc_get_rfkill_wlan(acpi_handle handle,
+ unsigned long long *value)
+{
+ union acpi_object param;
+ struct acpi_object_list input;
+ unsigned long long output;
+ acpi_status status;
+
+ param.type = ACPI_TYPE_INTEGER;
+ param.integer.value = 0xC1;
+ input.count = 1;
+ input.pointer = &param;
+ status = acpi_evaluate_integer(handle, "GRDI", &input, &output);
+ if (ACPI_SUCCESS(status))
+ *value = output;
+ return status;
+}
+
+static acpi_status cmpc_set_rfkill_wlan(acpi_handle handle,
+ unsigned long long value)
+{
+ union acpi_object param[2];
+ struct acpi_object_list input;
+ acpi_status status;
+ unsigned long long output;
+
+ param[0].type = ACPI_TYPE_INTEGER;
+ param[0].integer.value = 0xC1;
+ param[1].type = ACPI_TYPE_INTEGER;
+ param[1].integer.value = value;
+ input.count = 2;
+ input.pointer = param;
+ status = acpi_evaluate_integer(handle, "GWRI", &input, &output);
+ return status;
+}
+
+static void cmpc_rfkill_query(struct rfkill *rfkill, void *data)
+{
+ acpi_status status;
+ acpi_handle handle;
+ unsigned long long state;
+ bool blocked;
+
+ handle = data;
+ status = cmpc_get_rfkill_wlan(handle, &state);
+ if (ACPI_SUCCESS(status)) {
+ blocked = state & 1 ? false : true;
+ rfkill_set_sw_state(rfkill, blocked);
+ }
+}
+
+static int cmpc_rfkill_block(void *data, bool blocked)
+{
+ acpi_status status;
+ acpi_handle handle;
+ unsigned long long state;
+ bool is_blocked;
+
+ handle = data;
+ status = cmpc_get_rfkill_wlan(handle, &state);
+ if (ACPI_FAILURE(status))
+ return -ENODEV;
+ /* Check if we really need to call cmpc_set_rfkill_wlan */
+ is_blocked = state & 1 ? false : true;
+ if (is_blocked != blocked) {
+ state = blocked ? 0 : 1;
+ status = cmpc_set_rfkill_wlan(handle, state);
+ if (ACPI_FAILURE(status))
+ return -ENODEV;
+ }
+ return 0;
+}
+
+static const struct rfkill_ops cmpc_rfkill_ops = {
+ .query = cmpc_rfkill_query,
+ .set_block = cmpc_rfkill_block,
+};
+
+/*
+ * Common backlight and rfkill code.
+ */
+
+struct ipml200_dev {
+ struct backlight_device *bd;
+ struct rfkill *rf;
+};
+
+static int cmpc_ipml_add(struct acpi_device *acpi)
+{
+ int retval;
+ struct ipml200_dev *ipml;
+ struct backlight_properties props;
+
+ ipml = kmalloc(sizeof(*ipml), GFP_KERNEL);
+ if (ipml == NULL)
+ return -ENOMEM;
+
+ memset(&props, 0, sizeof(struct backlight_properties));
+ props.type = BACKLIGHT_PLATFORM;
+ props.max_brightness = 7;
+ ipml->bd = backlight_device_register("cmpc_bl", &acpi->dev,
+ acpi->handle, &cmpc_bl_ops,
+ &props);
+ if (IS_ERR(ipml->bd)) {
+ retval = PTR_ERR(ipml->bd);
+ goto out_bd;
+ }
+
+ ipml->rf = rfkill_alloc("cmpc_rfkill", &acpi->dev, RFKILL_TYPE_WLAN,
+ &cmpc_rfkill_ops, acpi->handle);
+ /*
+ * If RFKILL is disabled, rfkill_alloc will return ERR_PTR(-ENODEV).
+ * This is OK, however, since all other uses of the device will not
+ * dereference it.
+ */
+ if (ipml->rf) {
+ retval = rfkill_register(ipml->rf);
+ if (retval) {
+ rfkill_destroy(ipml->rf);
+ ipml->rf = NULL;
+ }
+ }
+
+ dev_set_drvdata(&acpi->dev, ipml);
+ return 0;
+
+out_bd:
+ kfree(ipml);
+ return retval;
+}
+
+static void cmpc_ipml_remove(struct acpi_device *acpi)
+{
+ struct ipml200_dev *ipml;
+
+ ipml = dev_get_drvdata(&acpi->dev);
+
+ backlight_device_unregister(ipml->bd);
+
+ if (ipml->rf) {
+ rfkill_unregister(ipml->rf);
+ rfkill_destroy(ipml->rf);
+ }
+
+ kfree(ipml);
+}
+
+static const struct acpi_device_id cmpc_ipml_device_ids[] = {
+ {CMPC_IPML_HID, 0},
+ {"", 0}
+};
+
+static struct acpi_driver cmpc_ipml_acpi_driver = {
+ .owner = THIS_MODULE,
+ .name = "cmpc",
+ .class = "cmpc",
+ .ids = cmpc_ipml_device_ids,
+ .ops = {
+ .add = cmpc_ipml_add,
+ .remove = cmpc_ipml_remove
+ }
+};
+
+
+/*
+ * Extra keys code.
+ */
+static int cmpc_keys_codes[] = {
+ KEY_UNKNOWN,
+ KEY_WLAN,
+ KEY_SWITCHVIDEOMODE,
+ KEY_BRIGHTNESSDOWN,
+ KEY_BRIGHTNESSUP,
+ KEY_VENDOR,
+ KEY_UNKNOWN,
+ KEY_CAMERA,
+ KEY_BACK,
+ KEY_FORWARD,
+ KEY_UNKNOWN,
+ KEY_WLAN, /* NL3: 0x8b (press), 0x9b (release) */
+ KEY_MAX
+};
+
+static void cmpc_keys_handler(struct acpi_device *dev, u32 event)
+{
+ struct input_dev *inputdev;
+ int code = KEY_MAX;
+
+ if ((event & 0x0F) < ARRAY_SIZE(cmpc_keys_codes))
+ code = cmpc_keys_codes[event & 0x0F];
+ inputdev = dev_get_drvdata(&dev->dev);
+ input_report_key(inputdev, code, !(event & 0x10));
+ input_sync(inputdev);
+}
+
+static void cmpc_keys_idev_init(struct input_dev *inputdev)
+{
+ int i;
+
+ set_bit(EV_KEY, inputdev->evbit);
+ for (i = 0; cmpc_keys_codes[i] != KEY_MAX; i++)
+ set_bit(cmpc_keys_codes[i], inputdev->keybit);
+}
+
+static int cmpc_keys_add(struct acpi_device *acpi)
+{
+ return cmpc_add_acpi_notify_device(acpi, "cmpc_keys",
+ cmpc_keys_idev_init);
+}
+
+static void cmpc_keys_remove(struct acpi_device *acpi)
+{
+ cmpc_remove_acpi_notify_device(acpi);
+}
+
+static const struct acpi_device_id cmpc_keys_device_ids[] = {
+ {CMPC_KEYS_HID, 0},
+ {"", 0}
+};
+
+static struct acpi_driver cmpc_keys_acpi_driver = {
+ .owner = THIS_MODULE,
+ .name = "cmpc_keys",
+ .class = "cmpc_keys",
+ .ids = cmpc_keys_device_ids,
+ .ops = {
+ .add = cmpc_keys_add,
+ .remove = cmpc_keys_remove,
+ .notify = cmpc_keys_handler,
+ }
+};
+
+
+/*
+ * General init/exit code.
+ */
+
+static int cmpc_init(void)
+{
+ int r;
+
+ r = acpi_bus_register_driver(&cmpc_keys_acpi_driver);
+ if (r)
+ goto failed_keys;
+
+ r = acpi_bus_register_driver(&cmpc_ipml_acpi_driver);
+ if (r)
+ goto failed_bl;
+
+ r = acpi_bus_register_driver(&cmpc_tablet_acpi_driver);
+ if (r)
+ goto failed_tablet;
+
+ r = acpi_bus_register_driver(&cmpc_accel_acpi_driver);
+ if (r)
+ goto failed_accel;
+
+ r = acpi_bus_register_driver(&cmpc_accel_acpi_driver_v4);
+ if (r)
+ goto failed_accel_v4;
+
+ return r;
+
+failed_accel_v4:
+ acpi_bus_unregister_driver(&cmpc_accel_acpi_driver);
+
+failed_accel:
+ acpi_bus_unregister_driver(&cmpc_tablet_acpi_driver);
+
+failed_tablet:
+ acpi_bus_unregister_driver(&cmpc_ipml_acpi_driver);
+
+failed_bl:
+ acpi_bus_unregister_driver(&cmpc_keys_acpi_driver);
+
+failed_keys:
+ return r;
+}
+
+static void cmpc_exit(void)
+{
+ acpi_bus_unregister_driver(&cmpc_accel_acpi_driver_v4);
+ acpi_bus_unregister_driver(&cmpc_accel_acpi_driver);
+ acpi_bus_unregister_driver(&cmpc_tablet_acpi_driver);
+ acpi_bus_unregister_driver(&cmpc_ipml_acpi_driver);
+ acpi_bus_unregister_driver(&cmpc_keys_acpi_driver);
+}
+
+module_init(cmpc_init);
+module_exit(cmpc_exit);
+
+static const struct acpi_device_id cmpc_device_ids[] __maybe_unused = {
+ {CMPC_ACCEL_HID, 0},
+ {CMPC_ACCEL_HID_V4, 0},
+ {CMPC_TABLET_HID, 0},
+ {CMPC_IPML_HID, 0},
+ {CMPC_KEYS_HID, 0},
+ {"", 0}
+};
+
+MODULE_DEVICE_TABLE(acpi, cmpc_device_ids);
generated by cgit v1.2.3 (git 2.39.1) at 2024-11-27 07:37:43 +0000