diff options
Diffstat (limited to 'drivers/platform/x86/eeepc-wmi.c')
| -rw-r--r-- | drivers/platform/x86/eeepc-wmi.c | 138 |
1 files changed, 138 insertions, 0 deletions
diff --git a/drivers/platform/x86/eeepc-wmi.c b/drivers/platform/x86/eeepc-wmi.c index f12a25da4055..fb548f4b03e0 100644 --- a/drivers/platform/x86/eeepc-wmi.c +++ b/drivers/platform/x86/eeepc-wmi.c @@ -35,6 +35,7 @@ #include <linux/fb.h> #include <linux/backlight.h> #include <linux/leds.h> +#include <linux/rfkill.h> #include <linux/platform_device.h> #include <acpi/acpi_bus.h> #include <acpi/acpi_drivers.h> @@ -62,6 +63,9 @@ MODULE_ALIAS("wmi:"EEEPC_WMI_MGMT_GUID); #define EEEPC_WMI_DEVID_BACKLIGHT 0x00050012 #define EEEPC_WMI_DEVID_TPDLED 0x00100011 +#define EEEPC_WMI_DEVID_WLAN 0x00010011 +#define EEEPC_WMI_DEVID_BLUETOOTH 0x00010013 +#define EEEPC_WMI_DEVID_WWAN3G 0x00010019 static const struct key_entry eeepc_wmi_keymap[] = { /* Sleep already handled via generic ACPI code */ @@ -94,6 +98,10 @@ struct eeepc_wmi { int tpd_led_wk; struct workqueue_struct *led_workqueue; struct work_struct tpd_led_work; + + struct rfkill *wlan_rfkill; + struct rfkill *bluetooth_rfkill; + struct rfkill *wwan3g_rfkill; }; /* Only used in eeepc_wmi_init() and eeepc_wmi_exit() */ @@ -280,6 +288,129 @@ static void eeepc_wmi_led_exit(struct eeepc_wmi *eeepc) } /* + * Rfkill devices + */ +static int eeepc_rfkill_set(void *data, bool blocked) +{ + int dev_id = (unsigned long)data; + u32 ctrl_param = !blocked; + + return eeepc_wmi_set_devstate(dev_id, ctrl_param); +} + +static void eeepc_rfkill_query(struct rfkill *rfkill, void *data) +{ + int dev_id = (unsigned long)data; + u32 ctrl_param; + acpi_status status; + + status = eeepc_wmi_get_devstate(dev_id, &ctrl_param); + + if (ACPI_FAILURE(status)) + return ; + + rfkill_set_sw_state(rfkill, !(ctrl_param & 0x1)); +} + +static const struct rfkill_ops eeepc_rfkill_ops = { + .set_block = eeepc_rfkill_set, + .query = eeepc_rfkill_query, +}; + +static int eeepc_new_rfkill(struct eeepc_wmi *eeepc, + struct rfkill **rfkill, + const char *name, + enum rfkill_type type, int dev_id) +{ + int result; + u32 ctrl_param; + acpi_status status; + + status = eeepc_wmi_get_devstate(dev_id, &ctrl_param); + + if (ACPI_FAILURE(status)) + return -1; + + /* If the device is present, DSTS will always set some bits + * 0x00070000 - 1110000000000000000 - device supported + * 0x00060000 - 1100000000000000000 - not supported + * 0x00020000 - 0100000000000000000 - device supported + * 0x00010000 - 0010000000000000000 - not supported / special mode ? + */ + if (!ctrl_param || ctrl_param == 0x00060000) + return -ENODEV; + + *rfkill = rfkill_alloc(name, &eeepc->platform_device->dev, type, + &eeepc_rfkill_ops, (void *)(long)dev_id); + + if (!*rfkill) + return -EINVAL; + + rfkill_init_sw_state(*rfkill, !(ctrl_param & 0x1)); + result = rfkill_register(*rfkill); + if (result) { + rfkill_destroy(*rfkill); + *rfkill = NULL; + return result; + } + return 0; +} + +static void eeepc_wmi_rfkill_exit(struct eeepc_wmi *eeepc) +{ + if (eeepc->wlan_rfkill) { + rfkill_unregister(eeepc->wlan_rfkill); + rfkill_destroy(eeepc->wlan_rfkill); + eeepc->wlan_rfkill = NULL; + } + if (eeepc->bluetooth_rfkill) { + rfkill_unregister(eeepc->bluetooth_rfkill); + rfkill_destroy(eeepc->bluetooth_rfkill); + eeepc->bluetooth_rfkill = NULL; + } + if (eeepc->wwan3g_rfkill) { + rfkill_unregister(eeepc->wwan3g_rfkill); + rfkill_destroy(eeepc->wwan3g_rfkill); + eeepc->wwan3g_rfkill = NULL; + } +} + +static int eeepc_wmi_rfkill_init(struct eeepc_wmi *eeepc) +{ + int result = 0; + + result = eeepc_new_rfkill(eeepc, &eeepc->wlan_rfkill, + "eeepc-wlan", RFKILL_TYPE_WLAN, + EEEPC_WMI_DEVID_WLAN); + + if (result && result != -ENODEV) + goto exit; + + result = eeepc_new_rfkill(eeepc, &eeepc->bluetooth_rfkill, + "eeepc-bluetooth", RFKILL_TYPE_BLUETOOTH, + EEEPC_WMI_DEVID_BLUETOOTH); + + if (result && result != -ENODEV) + goto exit; + + result = eeepc_new_rfkill(eeepc, &eeepc->wwan3g_rfkill, + "eeepc-wwan3g", RFKILL_TYPE_WWAN, + EEEPC_WMI_DEVID_WWAN3G); + + if (result && result != -ENODEV) + goto exit; + +exit: + if (result && result != -ENODEV) + eeepc_wmi_rfkill_exit(eeepc); + + if (result == -ENODEV) + result = 0; + + return result; +} + +/* * Backlight */ static int read_brightness(struct backlight_device *bd) @@ -512,6 +643,10 @@ static struct platform_device * __init eeepc_wmi_add(void) if (err) goto fail_leds; + err = eeepc_wmi_rfkill_init(eeepc); + if (err) + goto fail_rfkill; + if (!acpi_video_backlight_support()) { err = eeepc_wmi_backlight_init(eeepc); if (err) @@ -533,6 +668,8 @@ static struct platform_device * __init eeepc_wmi_add(void) fail_wmi_handler: eeepc_wmi_backlight_exit(eeepc); fail_backlight: + eeepc_wmi_rfkill_exit(eeepc); +fail_rfkill: eeepc_wmi_led_exit(eeepc); fail_leds: eeepc_wmi_input_exit(eeepc); @@ -552,6 +689,7 @@ static int eeepc_wmi_remove(struct platform_device *device) eeepc_wmi_backlight_exit(eeepc); eeepc_wmi_input_exit(eeepc); eeepc_wmi_led_exit(eeepc); + eeepc_wmi_rfkill_exit(eeepc); eeepc_wmi_platform_exit(eeepc); kfree(eeepc); |