From: Javier Achirica <jachirica@xxxxxxxxx>
The current value is not available through the SNC device and therefore
the attribute is writable only.
Signed-off-by: Javier Achirica <jachirica@xxxxxxxxx>
Signed-off-by: Mattia Dongili <malattia@xxxxxxxx>
---
drivers/platform/x86/sony-laptop.c | 67 ++++++++++++++++++++++++++++++++++++++
1 file changed, 67 insertions(+)
diff --git a/drivers/platform/x86/sony-laptop.c b/drivers/platform/x86/sony-laptop.c
index 48e7e5b..19d769e 100644
--- a/drivers/platform/x86/sony-laptop.c
+++ b/drivers/platform/x86/sony-laptop.c
@@ -177,6 +177,9 @@ static void sony_nc_usb_charge_cleanup(struct platform_device *pd);
static int sony_nc_panelid_setup(struct platform_device *pd);
static void sony_nc_panelid_cleanup(struct platform_device *pd);
+static int sony_nc_smart_conn_setup(struct platform_device *pd);
+static void sony_nc_smart_conn_cleanup(struct platform_device *pd);
+
static int sony_nc_touchpad_setup(struct platform_device *pd,
unsigned int handle);
static void sony_nc_touchpad_cleanup(struct platform_device *pd);
@@ -1422,6 +1425,12 @@ static void sony_nc_function_setup(struct acpi_device *device,
pr_err("couldn't set up panel ID function (%d)\n",
result);
break;
+ case 0x0168:
+ result = sony_nc_smart_conn_setup(pf_device);
+ if (result)
+ pr_err("couldn't set up smart connect support (%d)\n",
+ result);
+ break;
default:
continue;
}
@@ -1498,6 +1507,9 @@ static void sony_nc_function_cleanup(struct platform_device *pd)
case 0x011D:
sony_nc_panelid_cleanup(pd);
break;
+ case 0x0168:
+ sony_nc_smart_conn_cleanup(pd);
+ break;
default:
continue;
}
@@ -2885,6 +2897,61 @@ static void sony_nc_panelid_cleanup(struct platform_device *pd)
}
}
+/* smart connect function */
+static struct device_attribute *sc_handle;
+
+static ssize_t sony_nc_smart_conn_store(struct device *dev,
+ struct device_attribute *attr,
+ const char *buffer, size_t count)
+{
+ unsigned int result;
+ unsigned long value;
+
+ if (count > 31)
+ return -EINVAL;
+
+ if (kstrtoul(buffer, 10, &value) || value > 1)
+ return -EINVAL;
+
+ if (sony_call_snc_handle(0x0168, value << 0x10, &result))
+ return -EIO;
+
+ return count;
+}
+
+static int sony_nc_smart_conn_setup(struct platform_device *pd)
+{
+ unsigned int result;
+
+ sc_handle = kzalloc(sizeof(struct device_attribute), GFP_KERNEL);
+ if (!sc_handle)
+ return -ENOMEM;
+
+ sysfs_attr_init(&sc_handle->attr);
+ sc_handle->attr.name = "smart_connect";
+ sc_handle->attr.mode = S_IWUSR;
+ sc_handle->show = NULL;
+ sc_handle->store = sony_nc_smart_conn_store;
+
+ result = device_create_file(&pd->dev, sc_handle);
+ if (result) {
+ kfree(sc_handle);
+ sc_handle = NULL;
+ return result;
+ }
+
+ return 0;
+}
+
+static void sony_nc_smart_conn_cleanup(struct platform_device *pd)
+{
+ if (sc_handle) {
+ device_remove_file(&pd->dev, sc_handle);
+ kfree(sc_handle);
+ sc_handle = NULL;
+ }
+}
+
/* Touchpad enable/disable */
struct touchpad_control {
struct device_attribute attr;
--
1.9.0
--
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