diff options
Diffstat (limited to 'drivers/misc/asus-laptop.c')
| -rw-r--r-- | drivers/misc/asus-laptop.c | 115 |
1 files changed, 113 insertions, 2 deletions
diff --git a/drivers/misc/asus-laptop.c b/drivers/misc/asus-laptop.c index d0d5ee9b358f..222d4fba0ffa 100644 --- a/drivers/misc/asus-laptop.c +++ b/drivers/misc/asus-laptop.c @@ -56,8 +56,17 @@ #define ASUS_HOTK_PREFIX "\\_SB.ATKD." /* + * Known bits returned by \_SB.ATKD.HWRS + */ +#define WL_HWRS 0x80 +#define BT_HWRS 0x100 + +/* * Flags for hotk status + * WL_ON and BT_ON are also used for wireless_status() */ +#define WL_ON 0x01 //internal Wifi +#define BT_ON 0x02 //internal Bluetooth #define MLED_ON 0x04 //mail LED #define TLED_ON 0x08 //touchpad LED #define RLED_ON 0x10 //Record LED @@ -84,6 +93,14 @@ ASUS_HANDLE(tled_set, ASUS_HOTK_PREFIX "TLED"); ASUS_HANDLE(rled_set, ASUS_HOTK_PREFIX "RLED"); /* W1JC */ ASUS_HANDLE(pled_set, ASUS_HOTK_PREFIX "PLED"); /* A7J */ +/* Bluetooth and WLAN + * WLED and BLED are not handled like other XLED, because in some dsdt + * they also control the WLAN/Bluetooth device. + */ +ASUS_HANDLE(wl_switch, ASUS_HOTK_PREFIX "WLED"); +ASUS_HANDLE(bt_switch, ASUS_HOTK_PREFIX "BLED"); +ASUS_HANDLE(wireless_status, ASUS_HOTK_PREFIX "RSTS"); /* All new models */ + /* * This is the main structure, we can use it to store anything interesting * about the hotk device @@ -181,14 +198,32 @@ static int read_acpi_int(acpi_handle handle, const char *method, int *val, return (status == AE_OK) && (out_obj.type == ACPI_TYPE_INTEGER); } +static int read_wireless_status(int mask) { + int status; + + if (!wireless_status_handle) + return (hotk->status & mask) ? 1 : 0; + + if (read_acpi_int(wireless_status_handle, NULL, &status, NULL)) { + return (status & mask) ? 1 : 0; + } else + printk(ASUS_WARNING "Error reading Wireless status\n"); + + return (hotk->status & mask) ? 1 : 0; +} + /* Generic LED functions */ static int read_status(int mask) { + /* There is a special method for both wireless devices */ + if (mask == BT_ON || mask == WL_ON) + return read_wireless_status(mask); + return (hotk->status & mask) ? 1 : 0; } static void write_status(acpi_handle handle, int out, int mask, - int invert) + int invert) { hotk->status = (out) ? (hotk->status | mask) : (hotk->status & ~mask); @@ -292,6 +327,51 @@ static int parse_arg(const char *buf, unsigned long count, int *val) return count; } +static ssize_t store_status(const char *buf, size_t count, + acpi_handle handle, int mask, int invert) +{ + int rv, value; + int out = 0; + + rv = parse_arg(buf, count, &value); + if (rv > 0) + out = value ? 1 : 0; + + write_status(handle, out, mask, invert); + + return rv; +} + +/* + * WLAN + */ +static ssize_t show_wlan(struct device *dev, + struct device_attribute *attr, char *buf) +{ + return sprintf(buf, "%d\n", read_status(WL_ON)); +} + +static ssize_t store_wlan(struct device *dev, struct device_attribute *attr, + const char *buf, size_t count) +{ + return store_status(buf, count, wl_switch_handle, WL_ON, 0); +} + +/* + * Bluetooth + */ +static ssize_t show_bluetooth(struct device *dev, + struct device_attribute *attr, char *buf) +{ + return sprintf(buf, "%d\n", read_status(BT_ON)); +} + +static ssize_t store_bluetooth(struct device *dev, struct device_attribute *attr, + const char *buf, size_t count) +{ + return store_status(buf, count, bt_switch_handle, BT_ON, 0); +} + static void asus_hotk_notify(acpi_handle handle, u32 event, void *data) { /* TODO Find a better way to handle events count. */ @@ -322,9 +402,13 @@ static void asus_hotk_notify(acpi_handle handle, u32 event, void *data) } while(0) static ASUS_CREATE_DEVICE_ATTR(infos); +static ASUS_CREATE_DEVICE_ATTR(wlan); +static ASUS_CREATE_DEVICE_ATTR(bluetooth); static struct attribute *asuspf_attributes[] = { &dev_attr_infos.attr, + &dev_attr_wlan.attr, + &dev_attr_bluetooth.attr, NULL }; @@ -345,6 +429,13 @@ static struct platform_device *asuspf_device; static void asus_hotk_add_fs(void) { ASUS_SET_DEVICE_ATTR(infos, 0444, show_infos, NULL); + + if (wl_switch_handle) + ASUS_SET_DEVICE_ATTR(wlan, 0644, show_wlan, store_wlan); + + if (bt_switch_handle) + ASUS_SET_DEVICE_ATTR(bluetooth, 0644, + show_bluetooth, store_bluetooth); } static int asus_handle_init(char *name, acpi_handle *handle, @@ -377,7 +468,7 @@ static int asus_hotk_get_info(void) struct acpi_buffer buffer = { ACPI_ALLOCATE_BUFFER, NULL }; struct acpi_buffer dsdt = { ACPI_ALLOCATE_BUFFER, NULL }; union acpi_object *model = NULL; - int bsts_result; + int bsts_result, hwrs_result; char *string = NULL; acpi_status status; @@ -440,6 +531,22 @@ static int asus_hotk_get_info(void) ASUS_HANDLE_INIT(rled_set); ASUS_HANDLE_INIT(pled_set); + /* + * The HWRS method return informations about the hardware. + * 0x80 bit is for WLAN, 0x100 for Bluetooth. + * The significance of others is yet to be found. + * If we don't find the method, we assume the device are present. + */ + if (!read_acpi_int(hotk->handle, "HRWS", &hwrs_result, NULL)) + hwrs_result = WL_HWRS | BT_HWRS; + + if(hwrs_result & WL_HWRS) + ASUS_HANDLE_INIT(wl_switch); + if(hwrs_result & BT_HWRS) + ASUS_HANDLE_INIT(bt_switch); + + ASUS_HANDLE_INIT(wireless_status); + kfree(model); return AE_OK; @@ -504,6 +611,10 @@ static int asus_hotk_add(struct acpi_device *device) asus_hotk_found = 1; + /* WLED and BLED are on by default */ + write_status(bt_switch_handle, 1, BT_ON, 0); + write_status(wl_switch_handle, 1, WL_ON, 0); + end: if (result) { kfree(hotk->name); |