| lists.openwall.net | lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC | |
|
Open Source and information security mailing list archives
| ||
|
Message-Id: <1402864790-7478-3-git-send-email-jm@lentin.co.uk>
Date: Sun, 15 Jun 2014 21:39:50 +0100
From: Jamie Lentin <jm@...tin.co.uk>
To: Jiri Kosina <jkosina@...e.cz>, Antonio Ospite <ao2@....it>
Cc: Alexander Clouter <alex@...riz.org.uk>,
linux-input@...r.kernel.org, linux-kernel@...r.kernel.org,
Jamie Lentin <jm@...tin.co.uk>
Subject: [PATCH v3 2/2] Add support for Compact (Bluetooth|USB) keyboard with Trackpoint
Signed-off-by: Jamie Lentin <jm@...tin.co.uk>
---
drivers/hid/Kconfig | 2 +
drivers/hid/hid-core.c | 2 +
drivers/hid/hid-ids.h | 2 +
drivers/hid/hid-lenovo.c | 202 +++++++++++++++++++++++++++++++++++++++++++++++
include/linux/hid.h | 1 +
5 files changed, 209 insertions(+)
diff --git a/drivers/hid/Kconfig b/drivers/hid/Kconfig
index dd07d59..48b4777 100644
--- a/drivers/hid/Kconfig
+++ b/drivers/hid/Kconfig
@@ -334,6 +334,8 @@ config HID_LENOVO
Thinkpad standalone keyboards, e.g:
- ThinkPad USB Keyboard with TrackPoint (supports extra LEDs and trackpoint
configuration)
+ - ThinkPad Compact Bluetooth Keyboard with TrackPoint (supports Fn keys)
+ - ThinkPad Compact USB Keyboard with TrackPoint (supports Fn keys)
config HID_LOGITECH
tristate "Logitech devices" if EXPERT
diff --git a/drivers/hid/hid-core.c b/drivers/hid/hid-core.c
index e8ce932..bce37c3 100644
--- a/drivers/hid/hid-core.c
+++ b/drivers/hid/hid-core.c
@@ -1738,6 +1738,8 @@ static const struct hid_device_id hid_have_special_driver[] = {
{ HID_USB_DEVICE(USB_VENDOR_ID_LCPOWER, USB_DEVICE_ID_LCPOWER_LC1000 ) },
#if IS_ENABLED(CONFIG_HID_LENOVO)
{ HID_USB_DEVICE(USB_VENDOR_ID_LENOVO, USB_DEVICE_ID_LENOVO_TPKBD) },
+ { HID_USB_DEVICE(USB_VENDOR_ID_LENOVO, USB_DEVICE_ID_LENOVO_CUSBKBD) },
+ { HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_LENOVO, USB_DEVICE_ID_LENOVO_CBTKBD) },
#endif
{ HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_MX3000_RECEIVER) },
{ HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_S510_RECEIVER) },
diff --git a/drivers/hid/hid-ids.h b/drivers/hid/hid-ids.h
index 6e12cd0..1763a07 100644
--- a/drivers/hid/hid-ids.h
+++ b/drivers/hid/hid-ids.h
@@ -551,6 +551,8 @@
#define USB_VENDOR_ID_LENOVO 0x17ef
#define USB_DEVICE_ID_LENOVO_TPKBD 0x6009
+#define USB_DEVICE_ID_LENOVO_CUSBKBD 0x6047
+#define USB_DEVICE_ID_LENOVO_CBTKBD 0x6048
#define USB_VENDOR_ID_LG 0x1fd2
#define USB_DEVICE_ID_LG_MULTITOUCH 0x0064
diff --git a/drivers/hid/hid-lenovo.c b/drivers/hid/hid-lenovo.c
index aabf084..0a19f84 100644
--- a/drivers/hid/hid-lenovo.c
+++ b/drivers/hid/hid-lenovo.c
@@ -1,8 +1,11 @@
/*
* HID driver for Lenovo:-
* - ThinkPad USB Keyboard with TrackPoint (tpkbd)
+ * - ThinkPad Compact Bluetooth Keyboard with TrackPoint (cptkbd)
+ * - ThinkPad Compact USB Keyboard with TrackPoint (cptkbd)
*
* Copyright (c) 2012 Bernhard Seibold
+ * Copyright (c) 2014 Jamie Lentin <jm@...tin.co.uk>
*/
/*
@@ -33,6 +36,10 @@ struct lenovo_drvdata_tpkbd {
int press_speed;
};
+struct lenovo_drvdata_cptkbd {
+ unsigned int fn_lock;
+};
+
#define map_key_clear(c) hid_map_usage_clear(hi, usage, bit, max, EV_KEY, (c))
static int lenovo_input_mapping_tpkbd(struct hid_device *hdev,
@@ -48,6 +55,49 @@ static int lenovo_input_mapping_tpkbd(struct hid_device *hdev,
return 0;
}
+static int lenovo_input_mapping_cptkbd(struct hid_device *hdev,
+ struct hid_input *hi, struct hid_field *field,
+ struct hid_usage *usage, unsigned long **bit, int *max)
+{
+ /* HID_UP_LNVENDOR = USB, HID_UP_MSVENDOR = BT */
+ if ((usage->hid & HID_USAGE_PAGE) == HID_UP_MSVENDOR ||
+ (usage->hid & HID_USAGE_PAGE) == HID_UP_LNVENDOR) {
+ set_bit(EV_REP, hi->input->evbit);
+ switch (usage->hid & HID_USAGE) {
+ case 0x00f1: /* Fn-F4: Mic mute */
+ map_key_clear(KEY_MICMUTE);
+ return 1;
+ case 0x00f2: /* Fn-F5: Brightness down */
+ map_key_clear(KEY_BRIGHTNESSDOWN);
+ return 1;
+ case 0x00f3: /* Fn-F6: Brightness up */
+ map_key_clear(KEY_BRIGHTNESSUP);
+ return 1;
+ case 0x00f4: /* Fn-F7: External display (projector) */
+ map_key_clear(KEY_SWITCHVIDEOMODE);
+ return 1;
+ case 0x00f5: /* Fn-F8: Wireless */
+ map_key_clear(KEY_WLAN);
+ return 1;
+ case 0x00f6: /* Fn-F9: Control panel */
+ map_key_clear(KEY_CONFIG);
+ return 1;
+ case 0x00f8: /* Fn-F11: View open applications (3 boxes) */
+ map_key_clear(KEY_FN_F11);
+ return 1;
+ case 0x00fa: /* Fn-Esc: Fn-lock toggle */
+ map_key_clear(KEY_FN_ESC);
+ return 1;
+ case 0x00fb: /* Fn-F12: Open My computer (6 boxes) USB-only */
+ /* NB: This mapping is invented in raw_event below */
+ map_key_clear(KEY_FILE);
+ return 1;
+ }
+ }
+
+ return 0;
+}
+
static int lenovo_input_mapping(struct hid_device *hdev,
struct hid_input *hi, struct hid_field *field,
struct hid_usage *usage, unsigned long **bit, int *max)
@@ -57,6 +107,11 @@ static int lenovo_input_mapping(struct hid_device *hdev,
return lenovo_input_mapping_tpkbd(hdev, hi, field,
usage, bit, max);
break;
+ case USB_DEVICE_ID_LENOVO_CUSBKBD:
+ case USB_DEVICE_ID_LENOVO_CBTKBD:
+ return lenovo_input_mapping_cptkbd(hdev, hi, field,
+ usage, bit, max);
+ break;
}
return 0;
@@ -64,6 +119,96 @@ static int lenovo_input_mapping(struct hid_device *hdev,
#undef map_key_clear
+/* Send a config command to the keyboard */
+static int lenovo_send_cmd_cptkbd(struct hid_device *hdev,
+ unsigned char byte2, unsigned char byte3)
+{
+ int ret;
+ unsigned char buf[] = {0x18, byte2, byte3};
+ unsigned char report_type = HID_OUTPUT_REPORT;
+
+ /* The USB keyboard accepts commands via SET_FEATURE */
+ if (hdev->product == USB_DEVICE_ID_LENOVO_CUSBKBD) {
+ buf[0] = 0x13;
+ report_type = HID_FEATURE_REPORT;
+ }
+
+ ret = hdev->hid_output_raw_report(hdev, buf, sizeof(buf), report_type);
+ return ret < 0 ? ret : 0; /* BT returns 0, USB returns sizeof(buf) */
+}
+
+static void lenovo_features_set_cptkbd(struct hid_device *hdev)
+{
+ struct lenovo_drvdata_cptkbd *tpcsc = hid_get_drvdata(hdev);
+
+ if (lenovo_send_cmd_cptkbd(hdev, 0x05, tpcsc->fn_lock ? 0x01 : 0x00))
+ hid_err(hdev, "Fn-lock setting failed\n");
+}
+
+static ssize_t attr_fn_lock_show_cptkbd(struct device *dev,
+ struct device_attribute *attr,
+ char *buf)
+{
+ struct hid_device *hdev = container_of(dev, struct hid_device, dev);
+ struct lenovo_drvdata_cptkbd *tpcsc = hid_get_drvdata(hdev);
+
+ return snprintf(buf, PAGE_SIZE, "%u\n", tpcsc->fn_lock);
+}
+
+static ssize_t attr_fn_lock_store_cptkbd(struct device *dev,
+ struct device_attribute *attr,
+ const char *buf,
+ size_t count)
+{
+ struct hid_device *hdev = container_of(dev, struct hid_device, dev);
+ struct lenovo_drvdata_cptkbd *tpcsc = hid_get_drvdata(hdev);
+ int value;
+
+ if (kstrtoint(buf, 10, &value))
+ return -EINVAL;
+ if (value < 0 || value > 1)
+ return -EINVAL;
+
+ tpcsc->fn_lock = value;
+ lenovo_features_set_cptkbd(hdev);
+
+ return count;
+}
+
+static struct device_attribute dev_attr_fn_lock_cptkbd =
+ __ATTR(fn_lock, S_IWUSR | S_IRUGO,
+ attr_fn_lock_show_cptkbd,
+ attr_fn_lock_store_cptkbd);
+
+static struct attribute *lenovo_attributes_cptkbd[] = {
+ &dev_attr_fn_lock_cptkbd.attr,
+ NULL
+};
+
+static const struct attribute_group lenovo_attr_group_cptkbd = {
+ .attrs = lenovo_attributes_cptkbd,
+};
+
+static int lenovo_raw_event(struct hid_device *hdev,
+ struct hid_report *report, u8 *data, int size)
+{
+ /*
+ * Compact USB keyboard's Fn-F12 report holds down many other keys, and
+ * it's own key is outside the usage page range. Remove extra
+ * keypresses and remap to inside usage page.
+ */
+ if (unlikely(hdev->product == USB_DEVICE_ID_LENOVO_CUSBKBD
+ && size == 3
+ && data[0] == 0x15
+ && data[1] == 0x94
+ && data[2] == 0x01)) {
+ data[1] = 0x0;
+ data[2] = 0x4;
+ }
+
+ return 0;
+}
+
static int lenovo_features_set_tpkbd(struct hid_device *hdev)
{
struct hid_report *report;
@@ -417,6 +562,46 @@ static int lenovo_probe_tpkbd(struct hid_device *hdev,
return 0;
}
+static int lenovo_probe_cptkbd(struct hid_device *hdev,
+ const struct hid_device_id *id)
+{
+ int ret;
+ struct lenovo_drvdata_cptkbd *tpcsc;
+
+ tpcsc = devm_kzalloc(&hdev->dev, sizeof(*tpcsc), GFP_KERNEL);
+ if (tpcsc == NULL) {
+ hid_err(hdev, "can't alloc keyboard descriptor\n");
+ return -ENOMEM;
+ }
+ hid_set_drvdata(hdev, tpcsc);
+
+ /* All the custom action happens on the mouse device for USB */
+ if (hdev->product == USB_DEVICE_ID_LENOVO_CUSBKBD
+ && hdev->type != HID_TYPE_USBMOUSE) {
+ pr_debug("Ignoring keyboard half of device\n");
+ return 0;
+ }
+
+ /*
+ * Tell the keyboard a driver understands it, and turn F7, F9, F11 into
+ * regular keys
+ */
+ ret = lenovo_send_cmd_cptkbd(hdev, 0x01, 0x03);
+ if (ret)
+ hid_warn(hdev, "Failed to switch F7/9/11 into regular keys\n");
+
+ /* Turn Fn-Lock on by default */
+ tpcsc->fn_lock = 1;
+ lenovo_features_set_cptkbd(hdev);
+
+ if (sysfs_create_group(&hdev->dev.kobj,
+ &lenovo_attr_group_cptkbd)) {
+ hid_warn(hdev, "Could not create sysfs group\n");
+ }
+
+ return 0;
+}
+
static int lenovo_probe(struct hid_device *hdev,
const struct hid_device_id *id)
{
@@ -438,6 +623,10 @@ static int lenovo_probe(struct hid_device *hdev,
case USB_DEVICE_ID_LENOVO_TPKBD:
ret = lenovo_probe_tpkbd(hdev, id);
break;
+ case USB_DEVICE_ID_LENOVO_CUSBKBD:
+ case USB_DEVICE_ID_LENOVO_CBTKBD:
+ ret = lenovo_probe_cptkbd(hdev, id);
+ break;
}
if (ret)
goto err_hid;
@@ -465,12 +654,22 @@ static void lenovo_remove_tpkbd(struct hid_device *hdev)
hid_set_drvdata(hdev, NULL);
}
+static void lenovo_remove_cptkbd(struct hid_device *hdev)
+{
+ sysfs_remove_group(&hdev->dev.kobj,
+ &lenovo_attr_group_cptkbd);
+}
+
static void lenovo_remove(struct hid_device *hdev)
{
switch (hdev->product) {
case USB_DEVICE_ID_LENOVO_TPKBD:
lenovo_remove_tpkbd(hdev);
break;
+ case USB_DEVICE_ID_LENOVO_CUSBKBD:
+ case USB_DEVICE_ID_LENOVO_CBTKBD:
+ lenovo_remove_cptkbd(hdev);
+ break;
}
hid_hw_stop(hdev);
@@ -478,6 +677,8 @@ static void lenovo_remove(struct hid_device *hdev)
static const struct hid_device_id lenovo_devices[] = {
{ HID_USB_DEVICE(USB_VENDOR_ID_LENOVO, USB_DEVICE_ID_LENOVO_TPKBD) },
+ { HID_USB_DEVICE(USB_VENDOR_ID_LENOVO, USB_DEVICE_ID_LENOVO_CUSBKBD) },
+ { HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_LENOVO, USB_DEVICE_ID_LENOVO_CBTKBD) },
{ }
};
@@ -489,6 +690,7 @@ static struct hid_driver lenovo_driver = {
.input_mapping = lenovo_input_mapping,
.probe = lenovo_probe,
.remove = lenovo_remove,
+ .raw_event = lenovo_raw_event,
};
module_hid_driver(lenovo_driver);
diff --git a/include/linux/hid.h b/include/linux/hid.h
index 31b9d29..ed23d6a 100644
--- a/include/linux/hid.h
+++ b/include/linux/hid.h
@@ -167,6 +167,7 @@ struct hid_item {
#define HID_UP_MSVENDOR 0xff000000
#define HID_UP_CUSTOM 0x00ff0000
#define HID_UP_LOGIVENDOR 0xffbc0000
+#define HID_UP_LNVENDOR 0xffa00000
#define HID_UP_SENSOR 0x00200000
#define HID_USAGE 0x0000ffff
--
2.0.0.rc2
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/
Powered by blists - more mailing lists