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path: root/drivers/platform/x86/hp-wmi.c
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Diffstat (limited to 'drivers/platform/x86/hp-wmi.c')
-rw-r--r--drivers/platform/x86/hp-wmi.c188
1 files changed, 187 insertions, 1 deletions
diff --git a/drivers/platform/x86/hp-wmi.c b/drivers/platform/x86/hp-wmi.c
index 524ffabc2866..1bc4a7539ba9 100644
--- a/drivers/platform/x86/hp-wmi.c
+++ b/drivers/platform/x86/hp-wmi.c
@@ -2,6 +2,7 @@
* HP WMI hotkeys
*
* Copyright (C) 2008 Red Hat <mjg@redhat.com>
+ * Copyright (C) 2010, 2011 Anssi Hannula <anssi.hannula@iki.fi>
*
* Portions based on wistron_btns.c:
* Copyright (C) 2005 Miloslav Trmac <mitr@volny.cz>
@@ -51,6 +52,7 @@ MODULE_ALIAS("wmi:5FB7F034-2C63-45e9-BE91-3D44E2C707E4");
#define HPWMI_HARDWARE_QUERY 0x4
#define HPWMI_WIRELESS_QUERY 0x5
#define HPWMI_HOTKEY_QUERY 0xc
+#define HPWMI_WIRELESS2_QUERY 0x1b
#define PREFIX "HP WMI: "
#define UNIMP "Unimplemented "
@@ -95,6 +97,39 @@ enum hp_return_value {
HPWMI_RET_INVALID_PARAMETERS = 0x05,
};
+enum hp_wireless2_bits {
+ HPWMI_POWER_STATE = 0x01,
+ HPWMI_POWER_SOFT = 0x02,
+ HPWMI_POWER_BIOS = 0x04,
+ HPWMI_POWER_HARD = 0x08,
+};
+
+#define IS_HWBLOCKED(x) ((x & (HPWMI_POWER_BIOS | HPWMI_POWER_HARD)) \
+ != (HPWMI_POWER_BIOS | HPWMI_POWER_HARD))
+#define IS_SWBLOCKED(x) !(x & HPWMI_POWER_SOFT)
+
+struct bios_rfkill2_device_state {
+ u8 radio_type;
+ u8 bus_type;
+ u16 vendor_id;
+ u16 product_id;
+ u16 subsys_vendor_id;
+ u16 subsys_product_id;
+ u8 rfkill_id;
+ u8 power;
+ u8 unknown[4];
+};
+
+/* 7 devices fit into the 128 byte buffer */
+#define HPWMI_MAX_RFKILL2_DEVICES 7
+
+struct bios_rfkill2_state {
+ u8 unknown[7];
+ u8 count;
+ u8 pad[8];
+ struct bios_rfkill2_device_state device[HPWMI_MAX_RFKILL2_DEVICES];
+};
+
static const struct key_entry hp_wmi_keymap[] = {
{ KE_KEY, 0x02, { KEY_BRIGHTNESSUP } },
{ KE_KEY, 0x03, { KEY_BRIGHTNESSDOWN } },
@@ -114,6 +149,15 @@ static struct rfkill *wifi_rfkill;
static struct rfkill *bluetooth_rfkill;
static struct rfkill *wwan_rfkill;
+struct rfkill2_device {
+ u8 id;
+ int num;
+ struct rfkill *rfkill;
+};
+
+static int rfkill2_count;
+static struct rfkill2_device rfkill2[HPWMI_MAX_RFKILL2_DEVICES];
+
static const struct dev_pm_ops hp_wmi_pm_ops = {
.resume = hp_wmi_resume_handler,
.restore = hp_wmi_resume_handler,
@@ -308,6 +352,51 @@ static bool hp_wmi_get_hw_state(enum hp_wmi_radio r)
return true;
}
+static int hp_wmi_rfkill2_set_block(void *data, bool blocked)
+{
+ int rfkill_id = (int)(long)data;
+ char buffer[4] = { 0x01, 0x00, rfkill_id, !blocked };
+
+ if (hp_wmi_perform_query(HPWMI_WIRELESS2_QUERY, 1,
+ buffer, sizeof(buffer), 0))
+ return -EINVAL;
+ return 0;
+}
+
+static const struct rfkill_ops hp_wmi_rfkill2_ops = {
+ .set_block = hp_wmi_rfkill2_set_block,
+};
+
+static int hp_wmi_rfkill2_refresh(void)
+{
+ int err, i;
+ struct bios_rfkill2_state state;
+
+ err = hp_wmi_perform_query(HPWMI_WIRELESS2_QUERY, 0, &state,
+ 0, sizeof(state));
+ if (err)
+ return err;
+
+ for (i = 0; i < rfkill2_count; i++) {
+ int num = rfkill2[i].num;
+ struct bios_rfkill2_device_state *devstate;
+ devstate = &state.device[num];
+
+ if (num >= state.count ||
+ devstate->rfkill_id != rfkill2[i].id) {
+ printk(KERN_WARNING PREFIX "power configuration of "
+ "the wireless devices unexpectedly changed\n");
+ continue;
+ }
+
+ rfkill_set_states(rfkill2[i].rfkill,
+ IS_SWBLOCKED(devstate->power),
+ IS_HWBLOCKED(devstate->power));
+ }
+
+ return 0;
+}
+
static ssize_t show_display(struct device *dev, struct device_attribute *attr,
char *buf)
{
@@ -442,6 +531,11 @@ static void hp_wmi_notify(u32 value, void *context)
key_code);
break;
case HPWMI_WIRELESS:
+ if (rfkill2_count) {
+ hp_wmi_rfkill2_refresh();
+ break;
+ }
+
if (wifi_rfkill)
rfkill_set_states(wifi_rfkill,
hp_wmi_get_sw_state(HPWMI_WIFI),
@@ -601,6 +695,87 @@ register_wifi_error:
return err;
}
+static int __devinit hp_wmi_rfkill2_setup(struct platform_device *device)
+{
+ int err, i;
+ struct bios_rfkill2_state state;
+ err = hp_wmi_perform_query(HPWMI_WIRELESS2_QUERY, 0, &state,
+ 0, sizeof(state));
+ if (err)
+ return err;
+
+ if (state.count > HPWMI_MAX_RFKILL2_DEVICES) {
+ printk(KERN_WARNING PREFIX "unable to parse 0x1b query output\n");
+ return -EINVAL;
+ }
+
+ for (i = 0; i < state.count; i++) {
+ struct rfkill *rfkill;
+ enum rfkill_type type;
+ char *name;
+ switch (state.device[i].radio_type) {
+ case HPWMI_WIFI:
+ type = RFKILL_TYPE_WLAN;
+ name = "hp-wifi";
+ break;
+ case HPWMI_BLUETOOTH:
+ type = RFKILL_TYPE_BLUETOOTH;
+ name = "hp-bluetooth";
+ break;
+ case HPWMI_WWAN:
+ type = RFKILL_TYPE_WWAN;
+ name = "hp-wwan";
+ break;
+ default:
+ printk(KERN_WARNING PREFIX "unknown device type 0x%x\n",
+ state.device[i].radio_type);
+ continue;
+ }
+
+ if (!state.device[i].vendor_id) {
+ printk(KERN_WARNING PREFIX "zero device %d while %d "
+ "reported\n", i, state.count);
+ continue;
+ }
+
+ rfkill = rfkill_alloc(name, &device->dev, type,
+ &hp_wmi_rfkill2_ops, (void *)(long)i);
+ if (!rfkill) {
+ err = -ENOMEM;
+ goto fail;
+ }
+
+ rfkill2[rfkill2_count].id = state.device[i].rfkill_id;
+ rfkill2[rfkill2_count].num = i;
+ rfkill2[rfkill2_count].rfkill = rfkill;
+
+ rfkill_init_sw_state(rfkill,
+ IS_SWBLOCKED(state.device[i].power));
+ rfkill_set_hw_state(rfkill,
+ IS_HWBLOCKED(state.device[i].power));
+
+ if (!(state.device[i].power & HPWMI_POWER_BIOS))
+ printk(KERN_INFO PREFIX "device %s blocked by BIOS\n",
+ name);
+
+ err = rfkill_register(rfkill);
+ if (err) {
+ rfkill_destroy(rfkill);
+ goto fail;
+ }
+
+ rfkill2_count++;
+ }
+
+ return 0;
+fail:
+ for (; rfkill2_count > 0; rfkill2_count--) {
+ rfkill_unregister(rfkill2[rfkill2_count - 1].rfkill);
+ rfkill_destroy(rfkill2[rfkill2_count - 1].rfkill);
+ }
+ return err;
+}
+
static int __devinit hp_wmi_bios_setup(struct platform_device *device)
{
int err;
@@ -609,8 +784,10 @@ static int __devinit hp_wmi_bios_setup(struct platform_device *device)
wifi_rfkill = NULL;
bluetooth_rfkill = NULL;
wwan_rfkill = NULL;
+ rfkill2_count = 0;
- hp_wmi_rfkill_setup(device);
+ if (hp_wmi_rfkill_setup(device))
+ hp_wmi_rfkill2_setup(device);
err = device_create_file(&device->dev, &dev_attr_display);
if (err)
@@ -636,8 +813,14 @@ add_sysfs_error:
static int __exit hp_wmi_bios_remove(struct platform_device *device)
{
+ int i;
cleanup_sysfs(device);
+ for (i = 0; i < rfkill2_count; i++) {
+ rfkill_unregister(rfkill2[i].rfkill);
+ rfkill_destroy(rfkill2[i].rfkill);
+ }
+
if (wifi_rfkill) {
rfkill_unregister(wifi_rfkill);
rfkill_destroy(wifi_rfkill);
@@ -670,6 +853,9 @@ static int hp_wmi_resume_handler(struct device *device)
input_sync(hp_wmi_input_dev);
}
+ if (rfkill2_count)
+ hp_wmi_rfkill2_refresh();
+
if (wifi_rfkill)
rfkill_set_states(wifi_rfkill,
hp_wmi_get_sw_state(HPWMI_WIFI),
generated by cgit v1.2.3 (git 2.39.1) at 2024-12-22 14:00:12 +0000