aboutsummaryrefslogtreecommitdiff
path: root/drivers/hwmon/hp_accel.c
diff options
context:
space:
mode:
Diffstat (limited to 'drivers/hwmon/hp_accel.c')
-rw-r--r--drivers/hwmon/hp_accel.c94
1 files changed, 88 insertions, 6 deletions
diff --git a/drivers/hwmon/hp_accel.c b/drivers/hwmon/hp_accel.c
index 03705240000..29c83b5b969 100644
--- a/drivers/hwmon/hp_accel.c
+++ b/drivers/hwmon/hp_accel.c
@@ -153,7 +153,10 @@ static struct axis_conversion lis3lv02d_axis_y_inverted = {1, -2, 3};
static struct axis_conversion lis3lv02d_axis_x_inverted = {-1, 2, 3};
static struct axis_conversion lis3lv02d_axis_z_inverted = {1, 2, -3};
static struct axis_conversion lis3lv02d_axis_xy_rotated_left = {-2, 1, 3};
+static struct axis_conversion lis3lv02d_axis_xy_rotated_left_usd = {-2, 1, -3};
static struct axis_conversion lis3lv02d_axis_xy_swap_inverted = {-2, -1, 3};
+static struct axis_conversion lis3lv02d_axis_xy_rotated_right = {2, -1, 3};
+static struct axis_conversion lis3lv02d_axis_xy_swap_yz_inverted = {2, -1, -3};
#define AXIS_DMI_MATCH(_ident, _name, _axis) { \
.ident = _ident, \
@@ -163,6 +166,18 @@ static struct axis_conversion lis3lv02d_axis_xy_swap_inverted = {-2, -1, 3};
}, \
.driver_data = &lis3lv02d_axis_##_axis \
}
+
+#define AXIS_DMI_MATCH2(_ident, _class1, _name1, \
+ _class2, _name2, \
+ _axis) { \
+ .ident = _ident, \
+ .callback = lis3lv02d_dmi_matched, \
+ .matches = { \
+ DMI_MATCH(DMI_##_class1, _name1), \
+ DMI_MATCH(DMI_##_class2, _name2), \
+ }, \
+ .driver_data = &lis3lv02d_axis_##_axis \
+}
static struct dmi_system_id lis3lv02d_dmi_ids[] = {
/* product names are truncated to match all kinds of a same model */
AXIS_DMI_MATCH("NC64x0", "HP Compaq nc64", x_inverted),
@@ -172,10 +187,22 @@ 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("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),
+ AXIS_DMI_MATCH("NC671xx", "HP Compaq 671", xy_swap_yz_inverted),
+ /* Intel-based HP Pavilion dv5 */
+ AXIS_DMI_MATCH2("HPDV5_I",
+ PRODUCT_NAME, "HP Pavilion dv5",
+ BOARD_NAME, "3603",
+ x_inverted),
+ /* AMD-based HP Pavilion dv5 */
+ AXIS_DMI_MATCH2("HPDV5_A",
+ PRODUCT_NAME, "HP Pavilion dv5",
+ BOARD_NAME, "3600",
+ y_inverted),
{ NULL, }
/* Laptop models without axis info (yet):
- * "NC651xx" "HP Compaq 651"
- * "NC671xx" "HP Compaq 671"
* "NC6910" "HP Compaq 6910"
* HP Compaq 8710x Notebook PC / Mobile Workstation
* "NC2400" "HP Compaq nc2400"
@@ -208,9 +235,49 @@ static struct delayed_led_classdev hpled_led = {
.set_brightness = hpled_set,
};
+static acpi_status
+lis3lv02d_get_resource(struct acpi_resource *resource, void *context)
+{
+ if (resource->type == ACPI_RESOURCE_TYPE_EXTENDED_IRQ) {
+ struct acpi_resource_extended_irq *irq;
+ u32 *device_irq = context;
+
+ irq = &resource->data.extended_irq;
+ *device_irq = irq->interrupts[0];
+ }
+
+ return AE_OK;
+}
+
+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);
+ 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)
{
- u8 val;
int ret;
if (!device)
@@ -224,10 +291,22 @@ static int lis3lv02d_add(struct acpi_device *device)
strcpy(acpi_device_class(device), ACPI_MDPS_CLASS);
device->driver_data = &adev;
- lis3lv02d_acpi_read(device->handle, WHO_AM_I, &val);
- if ((val != LIS3LV02DL_ID) && (val != LIS302DL_ID)) {
+ 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
- ": Accelerometer chip not LIS3LV02D{L,Q}\n");
+ ": unknown sensor type 0x%X\n", adev.whoami);
+ return -EINVAL;
}
/* If possible use a "standard" axes order */
@@ -242,6 +321,9 @@ static int lis3lv02d_add(struct acpi_device *device)
if (ret)
return ret;
+ /* obtain IRQ number of our device from ACPI */
+ lis3lv02d_enum_resources(adev.device);
+
ret = lis3lv02d_init_device(&adev);
if (ret) {
flush_work(&hpled_led.work);