HID: move microsoft quirks

Move them from the core code to a separate driver.

Signed-off-by: Jiri Slaby <jirislaby@gmail.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>

1 files changed, 220 insertions, 0 deletions

diff --git a/drivers/hid/hid-microsoft.c b/drivers/hid/hid-microsoft.c
new file mode 100644
index 000000000000..1fa8b813d441
--- /dev/null
+++ b/drivers/hid/hid-microsoft.c
@@ -0,0 +1,220 @@
+/*
+ *  HID driver for some microsoft "special" devices
+ *
+ *  Copyright (c) 1999 Andreas Gal
+ *  Copyright (c) 2000-2005 Vojtech Pavlik <vojtech@suse.cz>
+ *  Copyright (c) 2005 Michael Haboustak <mike-@cinci.rr.com> for Concept2, Inc
+ *  Copyright (c) 2006-2007 Jiri Kosina
+ *  Copyright (c) 2007 Paul Walmsley
+ *  Copyright (c) 2008 Jiri Slaby
+ */
+
+/*
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License as published by the Free
+ * Software Foundation; either version 2 of the License, or (at your option)
+ * any later version.
+ */
+
+#include <linux/device.h>
+#include <linux/input.h>
+#include <linux/hid.h>
+#include <linux/module.h>
+
+#include "hid-ids.h"
+
+#define MS_HIDINPUT     0x01
+#define MS_ERGONOMY     0x02
+#define MS_PRESENTER    0x04
+#define MS_RDESC        0x08
+#define MS_NOGET        0x10
+
+/*
+ * Microsoft Wireless Desktop Receiver (Model 1028) has several
+ * 'Usage Min/Max' where it ought to have 'Physical Min/Max'
+ */
+static void ms_report_fixup(struct hid_device *hdev, __u8 *rdesc,
+                unsigned int rsize)
+{
+        unsigned long quirks = (unsigned long)hid_get_drvdata(hdev);
+
+        if ((quirks & MS_RDESC) && rsize == 571 && rdesc[284] == 0x19 &&
+                        rdesc[286] == 0x2a && rdesc[304] == 0x19 &&
+                        rdesc[306] == 0x29 && rdesc[352] == 0x1a &&
+                        rdesc[355] == 0x2a && rdesc[557] == 0x19 &&
+                        rdesc[559] == 0x29) {
+                dev_info(&hdev->dev, "fixing up Microsoft Wireless Receiver "
+                                "Model 1028 report descriptor\n");
+                rdesc[284] = rdesc[304] = rdesc[557] = 0x35;
+                rdesc[352] = 0x36;
+                rdesc[286] = rdesc[355] = 0x46;
+                rdesc[306] = rdesc[559] = 0x45;
+        }
+}
+
+#define ms_map_key_clear(c)     hid_map_usage_clear(hi, usage, bit, max, \
+                                        EV_KEY, (c))
+static int ms_ergonomy_kb_quirk(struct hid_input *hi, struct hid_usage *usage,
+                unsigned long **bit, int *max)
+{
+        struct input_dev *input = hi->input;
+
+        switch (usage->hid & HID_USAGE) {
+        case 0xfd06: ms_map_key_clear(KEY_CHAT);        break;
+        case 0xfd07: ms_map_key_clear(KEY_PHONE);       break;
+        case 0xff05:
+                set_bit(EV_REP, input->evbit);
+                ms_map_key_clear(KEY_F13);
+                set_bit(KEY_F14, input->keybit);
+                set_bit(KEY_F15, input->keybit);
+                set_bit(KEY_F16, input->keybit);
+                set_bit(KEY_F17, input->keybit);
+                set_bit(KEY_F18, input->keybit);
+        default:
+                return 0;
+        }
+        return 1;
+}
+
+static int ms_presenter_8k_quirk(struct hid_input *hi, struct hid_usage *usage,
+                unsigned long **bit, int *max)
+{
+        set_bit(EV_REP, hi->input->evbit);
+        switch (usage->hid & HID_USAGE) {
+        case 0xfd08: ms_map_key_clear(KEY_FORWARD);     break;
+        case 0xfd09: ms_map_key_clear(KEY_BACK);        break;
+        case 0xfd0b: ms_map_key_clear(KEY_PLAYPAUSE);   break;
+        case 0xfd0e: ms_map_key_clear(KEY_CLOSE);       break;
+        case 0xfd0f: ms_map_key_clear(KEY_PLAY);        break;
+        default:
+                return 0;
+        }
+        return 1;
+}
+
+static int ms_input_mapping(struct hid_device *hdev, struct hid_input *hi,
+                struct hid_field *field, struct hid_usage *usage,
+                unsigned long **bit, int *max)
+{
+        unsigned long quirks = (unsigned long)hid_get_drvdata(hdev);
+
+        if ((usage->hid & HID_USAGE_PAGE) != HID_UP_MSVENDOR)
+                return 0;
+
+        if (quirks & MS_ERGONOMY) {
+                int ret = ms_ergonomy_kb_quirk(hi, usage, bit, max);
+                if (ret)
+                        return ret;
+        }
+
+        if ((quirks & MS_PRESENTER) &&
+                        ms_presenter_8k_quirk(hi, usage, bit, max))
+                return 1;
+
+        return 0;
+}
+
+static int ms_event(struct hid_device *hdev, struct hid_field *field,
+                struct hid_usage *usage, __s32 value)
+{
+        unsigned long quirks = (unsigned long)hid_get_drvdata(hdev);
+
+        if (!(hdev->claimed & HID_CLAIMED_INPUT) || !field->hidinput ||
+                        !usage->type)
+                return 0;
+
+        /* Handling MS keyboards special buttons */
+        if (quirks & MS_ERGONOMY && usage->hid == (HID_UP_MSVENDOR | 0xff05)) {
+                struct input_dev *input = field->hidinput->input;
+                static unsigned int last_key = 0;
+                unsigned int key = 0;
+                switch (value) {
+                case 0x01: key = KEY_F14; break;
+                case 0x02: key = KEY_F15; break;
+                case 0x04: key = KEY_F16; break;
+                case 0x08: key = KEY_F17; break;
+                case 0x10: key = KEY_F18; break;
+                }
+                if (key) {
+                        input_event(input, usage->type, key, 1);
+                        last_key = key;
+                } else
+                        input_event(input, usage->type, last_key, 0);
+
+                return 1;
+        }
+
+        return 0;
+}
+
+static int ms_probe(struct hid_device *hdev, const struct hid_device_id *id)
+{
+        unsigned long quirks = id->driver_data;
+        int ret;
+
+        hid_set_drvdata(hdev, (void *)quirks);
+
+        if (quirks & MS_HIDINPUT)
+                hdev->quirks |= HID_QUIRK_HIDINPUT;
+        if (quirks & MS_NOGET)
+                hdev->quirks |= HID_QUIRK_NOGET;
+
+        ret = hid_parse(hdev);
+        if (ret) {
+                dev_err(&hdev->dev, "parse failed\n");
+                goto err_free;
+        }
+
+        ret = hid_hw_start(hdev);
+        if (ret) {
+                dev_err(&hdev->dev, "hw start failed\n");
+                goto err_free;
+        }
+
+        return 0;
+err_free:
+        return ret;
+}
+
+static const struct hid_device_id ms_devices[] = {
+        { HID_USB_DEVICE(USB_VENDOR_ID_MICROSOFT, USB_DEVICE_ID_SIDEWINDER_GV),
+                .driver_data = MS_HIDINPUT },
+        { HID_USB_DEVICE(USB_VENDOR_ID_MICROSOFT, USB_DEVICE_ID_MS_NE4K),
+                .driver_data = MS_ERGONOMY },
+        { HID_USB_DEVICE(USB_VENDOR_ID_MICROSOFT, USB_DEVICE_ID_MS_LK6K),
+                .driver_data = MS_ERGONOMY | MS_RDESC },
+        { HID_USB_DEVICE(USB_VENDOR_ID_MICROSOFT, USB_DEVICE_ID_MS_PRESENTER_8K_USB),
+                .driver_data = MS_PRESENTER },
+        { HID_USB_DEVICE(USB_VENDOR_ID_MICROSOFT, USB_DEVICE_ID_WIRELESS_OPTICAL_DESKTOP_3_0),
+                .driver_data = MS_NOGET },
+
+        { HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_MICROSOFT, USB_DEVICE_ID_MS_PRESENTER_8K_BT),
+                .driver_data = MS_PRESENTER },
+        { }
+};
+MODULE_DEVICE_TABLE(hid, ms_devices);
+
+static struct hid_driver ms_driver = {
+        .name = "microsoft",
+        .id_table = ms_devices,
+        .report_fixup = ms_report_fixup,
+        .input_mapping = ms_input_mapping,
+        .event = ms_event,
+        .probe = ms_probe,
+};
+
+static int ms_init(void)
+{
+        return hid_register_driver(&ms_driver);
+}
+
+static void ms_exit(void)
+{
+        hid_unregister_driver(&ms_driver);
+}
+
+module_init(ms_init);
+module_exit(ms_exit);
+MODULE_LICENSE("GPL");
+
+HID_COMPAT_LOAD_DRIVER(microsoft);