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path: root/drivers/hwmon/hp_accel.c
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Diffstat (limited to 'drivers/hwmon/hp_accel.c')
-rw-r--r--drivers/hwmon/hp_accel.c125
1 files changed, 52 insertions, 73 deletions
diff --git a/drivers/hwmon/hp_accel.c b/drivers/hwmon/hp_accel.c
index 29c83b5b9697..abca7e9f953b 100644
--- a/drivers/hwmon/hp_accel.c
+++ b/drivers/hwmon/hp_accel.c
@@ -34,7 +34,6 @@
#include <linux/wait.h>
#include <linux/poll.h>
#include <linux/freezer.h>
-#include <linux/version.h>
#include <linux/uaccess.h>
#include <linux/leds.h>
#include <acpi/acpi_drivers.h>
@@ -85,25 +84,31 @@ MODULE_DEVICE_TABLE(acpi, lis3lv02d_device_ids);
/**
* lis3lv02d_acpi_init - ACPI _INI method: initialize the device.
- * @handle: the handle of the device
+ * @lis3: pointer to the device struct
*
- * Returns AE_OK on success.
+ * Returns 0 on success.
*/
-acpi_status lis3lv02d_acpi_init(acpi_handle handle)
+int lis3lv02d_acpi_init(struct lis3lv02d *lis3)
{
- return acpi_evaluate_object(handle, METHOD_NAME__INI, NULL, NULL);
+ struct acpi_device *dev = lis3->bus_priv;
+ if (acpi_evaluate_object(dev->handle, METHOD_NAME__INI,
+ NULL, NULL) != AE_OK)
+ return -EINVAL;
+
+ return 0;
}
/**
* lis3lv02d_acpi_read - ACPI ALRD method: read a register
- * @handle: the handle of the device
+ * @lis3: pointer to the device struct
* @reg: the register to read
* @ret: result of the operation
*
- * Returns AE_OK on success.
+ * Returns 0 on success.
*/
-acpi_status lis3lv02d_acpi_read(acpi_handle handle, int reg, u8 *ret)
+int lis3lv02d_acpi_read(struct lis3lv02d *lis3, int reg, u8 *ret)
{
+ struct acpi_device *dev = lis3->bus_priv;
union acpi_object arg0 = { ACPI_TYPE_INTEGER };
struct acpi_object_list args = { 1, &arg0 };
unsigned long long lret;
@@ -111,21 +116,22 @@ acpi_status lis3lv02d_acpi_read(acpi_handle handle, int reg, u8 *ret)
arg0.integer.value = reg;
- status = acpi_evaluate_integer(handle, "ALRD", &args, &lret);
+ status = acpi_evaluate_integer(dev->handle, "ALRD", &args, &lret);
*ret = lret;
- return status;
+ return (status != AE_OK) ? -EINVAL : 0;
}
/**
* lis3lv02d_acpi_write - ACPI ALWR method: write to a register
- * @handle: the handle of the device
+ * @lis3: pointer to the device struct
* @reg: the register to write to
* @val: the value to write
*
- * Returns AE_OK on success.
+ * Returns 0 on success.
*/
-acpi_status lis3lv02d_acpi_write(acpi_handle handle, int reg, u8 val)
+int lis3lv02d_acpi_write(struct lis3lv02d *lis3, int reg, u8 val)
{
+ struct acpi_device *dev = lis3->bus_priv;
unsigned long long ret; /* Not used when writting */
union acpi_object in_obj[2];
struct acpi_object_list args = { 2, in_obj };
@@ -135,12 +141,15 @@ acpi_status lis3lv02d_acpi_write(acpi_handle handle, int reg, u8 val)
in_obj[1].type = ACPI_TYPE_INTEGER;
in_obj[1].integer.value = val;
- return acpi_evaluate_integer(handle, "ALWR", &args, &ret);
+ if (acpi_evaluate_integer(dev->handle, "ALWR", &args, &ret) != AE_OK)
+ return -EINVAL;
+
+ return 0;
}
static int lis3lv02d_dmi_matched(const struct dmi_system_id *dmi)
{
- adev.ac = *((struct axis_conversion *)dmi->driver_data);
+ lis3_dev.ac = *((struct axis_conversion *)dmi->driver_data);
printk(KERN_INFO DRIVER_NAME ": hardware type %s found.\n", dmi->ident);
return 1;
@@ -187,6 +196,7 @@ static struct dmi_system_id lis3lv02d_dmi_ids[] = {
AXIS_DMI_MATCH("NC2510", "HP Compaq 2510", y_inverted),
AXIS_DMI_MATCH("NC8510", "HP Compaq 8510", xy_swap_inverted),
AXIS_DMI_MATCH("HP2133", "HP 2133", xy_rotated_left),
+ AXIS_DMI_MATCH("HP2140", "HP 2140", xy_swap_inverted),
AXIS_DMI_MATCH("NC653x", "HP Compaq 653", xy_rotated_left_usd),
AXIS_DMI_MATCH("NC673x", "HP Compaq 673", xy_rotated_left_usd),
AXIS_DMI_MATCH("NC651xx", "HP Compaq 651", xy_rotated_right),
@@ -201,6 +211,8 @@ static struct dmi_system_id lis3lv02d_dmi_ids[] = {
PRODUCT_NAME, "HP Pavilion dv5",
BOARD_NAME, "3600",
y_inverted),
+ AXIS_DMI_MATCH("DV7", "HP Pavilion dv7", x_inverted),
+ AXIS_DMI_MATCH("HP8710", "HP Compaq 8710", y_inverted),
{ NULL, }
/* Laptop models without axis info (yet):
* "NC6910" "HP Compaq 6910"
@@ -214,7 +226,7 @@ static struct dmi_system_id lis3lv02d_dmi_ids[] = {
static void hpled_set(struct delayed_led_classdev *led_cdev, enum led_brightness value)
{
- acpi_handle handle = adev.device->handle;
+ struct acpi_device *dev = lis3_dev.bus_priv;
unsigned long long ret; /* Not used when writing */
union acpi_object in_obj[1];
struct acpi_object_list args = { 1, in_obj };
@@ -222,7 +234,7 @@ static void hpled_set(struct delayed_led_classdev *led_cdev, enum led_brightness
in_obj[0].type = ACPI_TYPE_INTEGER;
in_obj[0].integer.value = !!value;
- acpi_evaluate_integer(handle, "ALED", &args, &ret);
+ acpi_evaluate_integer(dev->handle, "ALED", &args, &ret);
}
static struct delayed_led_classdev hpled_led = {
@@ -254,28 +266,11 @@ static void lis3lv02d_enum_resources(struct acpi_device *device)
acpi_status status;
status = acpi_walk_resources(device->handle, METHOD_NAME__CRS,
- lis3lv02d_get_resource, &adev.irq);
+ lis3lv02d_get_resource, &lis3_dev.irq);
if (ACPI_FAILURE(status))
printk(KERN_DEBUG DRIVER_NAME ": Error getting resources\n");
}
-static s16 lis3lv02d_read_16(acpi_handle handle, int reg)
-{
- u8 lo, hi;
-
- adev.read(handle, reg - 1, &lo);
- adev.read(handle, reg, &hi);
- /* In "12 bit right justified" mode, bit 6, bit 7, bit 8 = bit 5 */
- return (s16)((hi << 8) | lo);
-}
-
-static s16 lis3lv02d_read_8(acpi_handle handle, int reg)
-{
- s8 lo;
- adev.read(handle, reg, &lo);
- return lo;
-}
-
static int lis3lv02d_add(struct acpi_device *device)
{
int ret;
@@ -283,51 +278,35 @@ static int lis3lv02d_add(struct acpi_device *device)
if (!device)
return -EINVAL;
- adev.device = device;
- adev.init = lis3lv02d_acpi_init;
- adev.read = lis3lv02d_acpi_read;
- adev.write = lis3lv02d_acpi_write;
+ lis3_dev.bus_priv = device;
+ lis3_dev.init = lis3lv02d_acpi_init;
+ lis3_dev.read = lis3lv02d_acpi_read;
+ lis3_dev.write = lis3lv02d_acpi_write;
strcpy(acpi_device_name(device), DRIVER_NAME);
strcpy(acpi_device_class(device), ACPI_MDPS_CLASS);
- device->driver_data = &adev;
-
- lis3lv02d_acpi_read(device->handle, WHO_AM_I, &adev.whoami);
- switch (adev.whoami) {
- case LIS_DOUBLE_ID:
- printk(KERN_INFO DRIVER_NAME ": 2-byte sensor found\n");
- adev.read_data = lis3lv02d_read_16;
- adev.mdps_max_val = 2048;
- break;
- case LIS_SINGLE_ID:
- printk(KERN_INFO DRIVER_NAME ": 1-byte sensor found\n");
- adev.read_data = lis3lv02d_read_8;
- adev.mdps_max_val = 128;
- break;
- default:
- printk(KERN_ERR DRIVER_NAME
- ": unknown sensor type 0x%X\n", adev.whoami);
- return -EINVAL;
- }
+ device->driver_data = &lis3_dev;
+
+ /* obtain IRQ number of our device from ACPI */
+ lis3lv02d_enum_resources(device);
/* If possible use a "standard" axes order */
if (dmi_check_system(lis3lv02d_dmi_ids) == 0) {
printk(KERN_INFO DRIVER_NAME ": laptop model unknown, "
"using default axes configuration\n");
- adev.ac = lis3lv02d_axis_normal;
+ lis3_dev.ac = lis3lv02d_axis_normal;
}
- INIT_WORK(&hpled_led.work, delayed_set_status_worker);
- ret = led_classdev_register(NULL, &hpled_led.led_classdev);
+ /* call the core layer do its init */
+ ret = lis3lv02d_init_device(&lis3_dev);
if (ret)
return ret;
- /* obtain IRQ number of our device from ACPI */
- lis3lv02d_enum_resources(adev.device);
-
- ret = lis3lv02d_init_device(&adev);
+ INIT_WORK(&hpled_led.work, delayed_set_status_worker);
+ ret = led_classdev_register(NULL, &hpled_led.led_classdev);
if (ret) {
+ lis3lv02d_joystick_disable();
+ lis3lv02d_poweroff(&lis3_dev);
flush_work(&hpled_led.work);
- led_classdev_unregister(&hpled_led.led_classdev);
return ret;
}
@@ -340,7 +319,7 @@ static int lis3lv02d_remove(struct acpi_device *device, int type)
return -EINVAL;
lis3lv02d_joystick_disable();
- lis3lv02d_poweroff(device->handle);
+ lis3lv02d_poweroff(&lis3_dev);
flush_work(&hpled_led.work);
led_classdev_unregister(&hpled_led.led_classdev);
@@ -353,19 +332,19 @@ static int lis3lv02d_remove(struct acpi_device *device, int type)
static int lis3lv02d_suspend(struct acpi_device *device, pm_message_t state)
{
/* make sure the device is off when we suspend */
- lis3lv02d_poweroff(device->handle);
+ lis3lv02d_poweroff(&lis3_dev);
return 0;
}
static int lis3lv02d_resume(struct acpi_device *device)
{
/* put back the device in the right state (ACPI might turn it on) */
- mutex_lock(&adev.lock);
- if (adev.usage > 0)
- lis3lv02d_poweron(device->handle);
+ mutex_lock(&lis3_dev.lock);
+ if (lis3_dev.usage > 0)
+ lis3lv02d_poweron(&lis3_dev);
else
- lis3lv02d_poweroff(device->handle);
- mutex_unlock(&adev.lock);
+ lis3lv02d_poweroff(&lis3_dev);
+ mutex_unlock(&lis3_dev.lock);
return 0;
}
#else
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