diff options
| -rw-r--r-- | arch/x86/kernel/olpc-pm.c | 32 |
1 files changed, 32 insertions, 0 deletions
diff --git a/arch/x86/kernel/olpc-pm.c b/arch/x86/kernel/olpc-pm.c index 19d34aa42d26..5a15dfd7e4e3 100644 --- a/arch/x86/kernel/olpc-pm.c +++ b/arch/x86/kernel/olpc-pm.c @@ -43,6 +43,8 @@ /* These, and the battery EC commands, should be in an olpc.h. */ #define EC_WRITE_SCI_MASK 0x1b #define EC_READ_SCI_MASK 0x1c +#define EC_WLAN_ENTER_RESET 0x35 +#define EC_WLAN_LEAVE_RESET 0x25 extern void do_olpc_suspend_lowlevel(void); @@ -69,6 +71,8 @@ static u16 olpc_wakeup_mask = 0; static unsigned int test_timeout = 0; static char *wackup_source = "none"; +static unsigned int wlan_enabled = 1; + struct platform_device olpc_powerbutton_dev = { .name = "powerbutton", .id = -1, @@ -661,6 +665,30 @@ static ssize_t wackup_show(struct kobject *s, struct kobj_attribute *attr, return sprintf(buf, "%s\n", wackup_source ? wackup_source : "none"); } +static ssize_t wlan_enabled_show(struct kobject *s, struct kobj_attribute *attr, + char *buf) +{ + return sprintf(buf, "%u\n", wlan_enabled); +} + +static ssize_t wlan_enabled_store(struct kobject *s, struct kobj_attribute *attr, + const char *buf, size_t n) +{ + unsigned int val; + if (!sscanf(buf, "%u", &val) == 1) { + return -EINVAL; + } + if (val == 1) { + olpc_ec_cmd(EC_WLAN_LEAVE_RESET, NULL, 0, NULL, 0); + wlan_enabled = 1; + } + else if (val == 0) { + olpc_ec_cmd(EC_WLAN_ENTER_RESET, NULL, 0, NULL, 0); + wlan_enabled = 0; + } + return n; +} + static struct kobj_attribute control_attr = __ATTR(olpc-pm, 0644, control_show, control_store); @@ -670,10 +698,14 @@ static struct kobj_attribute test_attr = static struct kobj_attribute wackup_attr = __ATTR(wakeup-source, 0400, wackup_show, NULL); +static struct kobj_attribute wlanenabled_attr = + __ATTR(wlan-enabled, 0644, wlan_enabled_show, wlan_enabled_store); + static struct attribute * olpc_attributes[] = { &control_attr.attr, &test_attr.attr, &wackup_attr.attr, + &wlanenabled_attr.attr, NULL }; |