diff options
Diffstat (limited to 'drivers/platform')
| -rw-r--r-- | drivers/platform/x86/sony-laptop.c | 67 |
1 files changed, 67 insertions, 0 deletions
diff --git a/drivers/platform/x86/sony-laptop.c b/drivers/platform/x86/sony-laptop.c index 48e7e5bdadb..19d769e0d77 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; |