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path: root/drivers/hid/hid-asus.c
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Diffstat (limited to 'drivers/hid/hid-asus.c')
-rw-r--r--drivers/hid/hid-asus.c247
1 files changed, 231 insertions, 16 deletions
diff --git a/drivers/hid/hid-asus.c b/drivers/hid/hid-asus.c
index 951bb17ae8b2..336aeaed1159 100644
--- a/drivers/hid/hid-asus.c
+++ b/drivers/hid/hid-asus.c
@@ -32,6 +32,7 @@
#include <linux/platform_data/x86/asus-wmi.h>
#include <linux/input/mt.h>
#include <linux/usb.h> /* For to_usb_interface for T100 touchpad intf check */
+#include <linux/power_supply.h>
#include "hid-ids.h"
@@ -61,6 +62,13 @@ MODULE_DESCRIPTION("Asus HID Keyboard and TouchPad");
#define CONTACT_TOUCH_MAJOR_MASK 0x07
#define CONTACT_PRESSURE_MASK 0x7f
+#define BATTERY_REPORT_ID (0x03)
+#define BATTERY_REPORT_SIZE (1 + 8)
+#define BATTERY_LEVEL_MAX ((u8)255)
+#define BATTERY_STAT_DISCONNECT (0)
+#define BATTERY_STAT_CHARGING (1)
+#define BATTERY_STAT_FULL (2)
+
#define QUIRK_FIX_NOTEBOOK_REPORT BIT(0)
#define QUIRK_NO_INIT_REPORTS BIT(1)
#define QUIRK_SKIP_INPUT_MAPPING BIT(2)
@@ -71,6 +79,7 @@ MODULE_DESCRIPTION("Asus HID Keyboard and TouchPad");
#define QUIRK_T100CHI BIT(7)
#define QUIRK_G752_KEYBOARD BIT(8)
#define QUIRK_T101HA_DOCK BIT(9)
+#define QUIRK_T90CHI BIT(10)
#define I2C_KEYBOARD_QUIRKS (QUIRK_FIX_NOTEBOOK_REPORT | \
QUIRK_NO_INIT_REPORTS | \
@@ -100,12 +109,21 @@ struct asus_touchpad_info {
struct asus_drvdata {
unsigned long quirks;
+ struct hid_device *hdev;
struct input_dev *input;
struct asus_kbd_leds *kbd_backlight;
const struct asus_touchpad_info *tp;
bool enable_backlight;
+ struct power_supply *battery;
+ struct power_supply_desc battery_desc;
+ int battery_capacity;
+ int battery_stat;
+ bool battery_in_query;
+ unsigned long battery_next_query;
};
+static int asus_report_battery(struct asus_drvdata *, u8 *, int);
+
static const struct asus_touchpad_info asus_i2c_tp = {
.max_x = 2794,
.max_y = 1758,
@@ -259,6 +277,9 @@ static int asus_raw_event(struct hid_device *hdev,
{
struct asus_drvdata *drvdata = hid_get_drvdata(hdev);
+ if (drvdata->battery && data[0] == BATTERY_REPORT_ID)
+ return asus_report_battery(drvdata, data, size);
+
if (drvdata->tp && data[0] == INPUT_REPORT_ID)
return asus_report_input(drvdata, data, size);
@@ -428,6 +449,164 @@ static int asus_kbd_register_leds(struct hid_device *hdev)
return ret;
}
+/*
+ * [0] REPORT_ID (same value defined in report descriptor)
+ * [1] rest battery level. range [0..255]
+ * [2]..[7] Bluetooth hardware address (MAC address)
+ * [8] charging status
+ * = 0 : AC offline / discharging
+ * = 1 : AC online / charging
+ * = 2 : AC online / fully charged
+ */
+static int asus_parse_battery(struct asus_drvdata *drvdata, u8 *data, int size)
+{
+ u8 sts;
+ u8 lvl;
+ int val;
+
+ lvl = data[1];
+ sts = data[8];
+
+ drvdata->battery_capacity = ((int)lvl * 100) / (int)BATTERY_LEVEL_MAX;
+
+ switch (sts) {
+ case BATTERY_STAT_CHARGING:
+ val = POWER_SUPPLY_STATUS_CHARGING;
+ break;
+ case BATTERY_STAT_FULL:
+ val = POWER_SUPPLY_STATUS_FULL;
+ break;
+ case BATTERY_STAT_DISCONNECT:
+ default:
+ val = POWER_SUPPLY_STATUS_DISCHARGING;
+ break;
+ }
+ drvdata->battery_stat = val;
+
+ return 0;
+}
+
+static int asus_report_battery(struct asus_drvdata *drvdata, u8 *data, int size)
+{
+ /* notify only the autonomous event by device */
+ if ((drvdata->battery_in_query == false) &&
+ (size == BATTERY_REPORT_SIZE))
+ power_supply_changed(drvdata->battery);
+
+ return 0;
+}
+
+static int asus_battery_query(struct asus_drvdata *drvdata)
+{
+ u8 *buf;
+ int ret = 0;
+
+ buf = kmalloc(BATTERY_REPORT_SIZE, GFP_KERNEL);
+ if (!buf)
+ return -ENOMEM;
+
+ drvdata->battery_in_query = true;
+ ret = hid_hw_raw_request(drvdata->hdev, BATTERY_REPORT_ID,
+ buf, BATTERY_REPORT_SIZE,
+ HID_INPUT_REPORT, HID_REQ_GET_REPORT);
+ drvdata->battery_in_query = false;
+ if (ret == BATTERY_REPORT_SIZE)
+ ret = asus_parse_battery(drvdata, buf, BATTERY_REPORT_SIZE);
+ else
+ ret = -ENODATA;
+
+ kfree(buf);
+
+ return ret;
+}
+
+static enum power_supply_property asus_battery_props[] = {
+ POWER_SUPPLY_PROP_STATUS,
+ POWER_SUPPLY_PROP_PRESENT,
+ POWER_SUPPLY_PROP_CAPACITY,
+ POWER_SUPPLY_PROP_SCOPE,
+ POWER_SUPPLY_PROP_MODEL_NAME,
+};
+
+#define QUERY_MIN_INTERVAL (60 * HZ) /* 60[sec] */
+
+static int asus_battery_get_property(struct power_supply *psy,
+ enum power_supply_property psp,
+ union power_supply_propval *val)
+{
+ struct asus_drvdata *drvdata = power_supply_get_drvdata(psy);
+ int ret = 0;
+
+ switch (psp) {
+ case POWER_SUPPLY_PROP_STATUS:
+ case POWER_SUPPLY_PROP_CAPACITY:
+ if (time_before(drvdata->battery_next_query, jiffies)) {
+ drvdata->battery_next_query =
+ jiffies + QUERY_MIN_INTERVAL;
+ ret = asus_battery_query(drvdata);
+ if (ret)
+ return ret;
+ }
+ if (psp == POWER_SUPPLY_PROP_STATUS)
+ val->intval = drvdata->battery_stat;
+ else
+ val->intval = drvdata->battery_capacity;
+ break;
+ case POWER_SUPPLY_PROP_PRESENT:
+ val->intval = 1;
+ break;
+ case POWER_SUPPLY_PROP_SCOPE:
+ val->intval = POWER_SUPPLY_SCOPE_DEVICE;
+ break;
+ case POWER_SUPPLY_PROP_MODEL_NAME:
+ val->strval = drvdata->hdev->name;
+ break;
+ default:
+ ret = -EINVAL;
+ break;
+ }
+
+ return ret;
+}
+
+static int asus_battery_probe(struct hid_device *hdev)
+{
+ struct asus_drvdata *drvdata = hid_get_drvdata(hdev);
+ struct power_supply_config pscfg = { .drv_data = drvdata };
+ int ret = 0;
+
+ drvdata->battery_capacity = 0;
+ drvdata->battery_stat = POWER_SUPPLY_STATUS_UNKNOWN;
+ drvdata->battery_in_query = false;
+
+ drvdata->battery_desc.properties = asus_battery_props;
+ drvdata->battery_desc.num_properties = ARRAY_SIZE(asus_battery_props);
+ drvdata->battery_desc.get_property = asus_battery_get_property;
+ drvdata->battery_desc.type = POWER_SUPPLY_TYPE_BATTERY;
+ drvdata->battery_desc.use_for_apm = 0;
+ drvdata->battery_desc.name = devm_kasprintf(&hdev->dev, GFP_KERNEL,
+ "asus-keyboard-%s-battery",
+ strlen(hdev->uniq) ?
+ hdev->uniq : dev_name(&hdev->dev));
+ if (!drvdata->battery_desc.name)
+ return -ENOMEM;
+
+ drvdata->battery_next_query = jiffies;
+
+ drvdata->battery = devm_power_supply_register(&hdev->dev,
+ &(drvdata->battery_desc), &pscfg);
+ if (IS_ERR(drvdata->battery)) {
+ ret = PTR_ERR(drvdata->battery);
+ drvdata->battery = NULL;
+ hid_err(hdev, "Unable to register battery device\n");
+ return ret;
+ }
+
+ power_supply_powers(drvdata->battery, &hdev->dev);
+
+ return ret;
+}
+
static int asus_input_configured(struct hid_device *hdev, struct hid_input *hi)
{
struct input_dev *input = hi->input;
@@ -500,7 +679,7 @@ static int asus_input_mapping(struct hid_device *hdev,
* This avoids a bunch of non-functional hid_input devices getting
* created because of the T100CHI using HID_QUIRK_MULTI_INPUT.
*/
- if (drvdata->quirks & QUIRK_T100CHI) {
+ if (drvdata->quirks & (QUIRK_T100CHI | QUIRK_T90CHI)) {
if (field->application == (HID_UP_GENDESK | 0x0080) ||
usage->hid == (HID_UP_GENDEVCTRLS | 0x0024) ||
usage->hid == (HID_UP_GENDEVCTRLS | 0x0025) ||
@@ -660,6 +839,15 @@ static int asus_probe(struct hid_device *hdev, const struct hid_device_id *id)
drvdata->quirks = id->driver_data;
+ /*
+ * T90CHI's keyboard dock returns same ID values as T100CHI's dock.
+ * Thus, identify T90CHI dock with product name string.
+ */
+ if (strstr(hdev->name, "T90CHI")) {
+ drvdata->quirks &= ~QUIRK_T100CHI;
+ drvdata->quirks |= QUIRK_T90CHI;
+ }
+
if (drvdata->quirks & QUIRK_IS_MULTITOUCH)
drvdata->tp = &asus_i2c_tp;
@@ -694,6 +882,17 @@ static int asus_probe(struct hid_device *hdev, const struct hid_device_id *id)
if (drvdata->quirks & QUIRK_NO_INIT_REPORTS)
hdev->quirks |= HID_QUIRK_NO_INIT_REPORTS;
+ drvdata->hdev = hdev;
+
+ if (drvdata->quirks & (QUIRK_T100CHI | QUIRK_T90CHI)) {
+ ret = asus_battery_probe(hdev);
+ if (ret) {
+ hid_err(hdev,
+ "Asus hid battery_probe failed: %d\n", ret);
+ return ret;
+ }
+ }
+
ret = hid_parse(hdev);
if (ret) {
hid_err(hdev, "Asus hid parse failed: %d\n", ret);
@@ -769,28 +968,44 @@ static __u8 *asus_report_fixup(struct hid_device *hdev, __u8 *rdesc,
hid_info(hdev, "Fixing up Asus T100 keyb report descriptor\n");
rdesc[74] &= ~HID_MAIN_ITEM_CONSTANT;
}
- /* For the T100CHI keyboard dock */
- if (drvdata->quirks & QUIRK_T100CHI &&
- *rsize == 403 && rdesc[388] == 0x09 && rdesc[389] == 0x76) {
+ /* For the T100CHI/T90CHI keyboard dock */
+ if (drvdata->quirks & (QUIRK_T100CHI | QUIRK_T90CHI)) {
+ int rsize_orig;
+ int offs;
+
+ if (drvdata->quirks & QUIRK_T100CHI) {
+ rsize_orig = 403;
+ offs = 388;
+ } else {
+ rsize_orig = 306;
+ offs = 291;
+ }
+
/*
* Change Usage (76h) to Usage Minimum (00h), Usage Maximum
* (FFh) and clear the flags in the Input() byte.
* Note the descriptor has a bogus 0 byte at the end so we
* only need 1 extra byte.
*/
- *rsize = 404;
- rdesc = kmemdup(rdesc, *rsize, GFP_KERNEL);
- if (!rdesc)
- return NULL;
-
- hid_info(hdev, "Fixing up T100CHI keyb report descriptor\n");
- memmove(rdesc + 392, rdesc + 390, 12);
- rdesc[388] = 0x19;
- rdesc[389] = 0x00;
- rdesc[390] = 0x29;
- rdesc[391] = 0xff;
- rdesc[402] = 0x00;
+ if (*rsize == rsize_orig &&
+ rdesc[offs] == 0x09 && rdesc[offs + 1] == 0x76) {
+ *rsize = rsize_orig + 1;
+ rdesc = kmemdup(rdesc, *rsize, GFP_KERNEL);
+ if (!rdesc)
+ return NULL;
+
+ hid_info(hdev, "Fixing up %s keyb report descriptor\n",
+ drvdata->quirks & QUIRK_T100CHI ?
+ "T100CHI" : "T90CHI");
+ memmove(rdesc + offs + 4, rdesc + offs + 2, 12);
+ rdesc[offs] = 0x19;
+ rdesc[offs + 1] = 0x00;
+ rdesc[offs + 2] = 0x29;
+ rdesc[offs + 3] = 0xff;
+ rdesc[offs + 14] = 0x00;
+ }
}
+
if (drvdata->quirks & QUIRK_G752_KEYBOARD &&
*rsize == 75 && rdesc[61] == 0x15 && rdesc[62] == 0x00) {
/* report is missing usage mninum and maximum */