HID: logitech-dj: pick a better name for non-unifying receivers

hidpp_unifying_get_name() does not work for devices attached to
non-unifying receivers. Since we do get a device-type in the device-
connection report, we can pick a better name for these devices in
hid-logitech-dj.c .

Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>

diff --git a/drivers/hid/hid-logitech-dj.c b/drivers/hid/hid-logitech-dj.c
index 5f06b80..1488b18 100644 (file)
--- a/drivers/hid/hid-logitech-dj.c
+++ b/drivers/hid/hid-logitech-dj.c
@@ -111,6 +111,9 @@
 #define HIDPP_DEVICE_TYPE_MASK                 GENMASK(3, 0)
 #define HIDPP_LINK_STATUS_MASK                 BIT(6)
 
+#define HIDPP_DEVICE_TYPE_KEYBOARD             1
+#define HIDPP_DEVICE_TYPE_MOUSE                        2
+
 #define HIDPP_SET_REGISTER                     0x80
 #define HIDPP_GET_LONG_REGISTER                        0x83
 #define HIDPP_REG_CONNECTION_STATE             0x02
@@ -171,6 +174,7 @@ struct dj_device {
 struct dj_workitem {
        u8 type;                /* WORKITEM_TYPE_* */
        u8 device_index;
+       u8 device_type;
        u8 quad_id_msb;
        u8 quad_id_lsb;
        u32 reports_supported;
@@ -632,9 +636,26 @@ static void logi_dj_recv_add_djhid_device(struct dj_receiver_dev *djrcv_dev,
        dj_hiddev->vendor = djrcv_hdev->vendor;
        dj_hiddev->product = (workitem->quad_id_msb << 8) |
                              workitem->quad_id_lsb;
-       snprintf(dj_hiddev->name, sizeof(dj_hiddev->name),
-               "Logitech Unifying Device. Wireless PID:%04x",
-               dj_hiddev->product);
+       if (workitem->device_type) {
+               const char *type_str = "Device";
+
+               switch (workitem->device_type) {
+               case 0x01: type_str = "Keyboard";       break;
+               case 0x02: type_str = "Mouse";          break;
+               case 0x03: type_str = "Numpad";         break;
+               case 0x04: type_str = "Presenter";      break;
+               case 0x07: type_str = "Remote Control"; break;
+               case 0x08: type_str = "Trackball";      break;
+               case 0x09: type_str = "Touchpad";       break;
+               }
+               snprintf(dj_hiddev->name, sizeof(dj_hiddev->name),
+                       "Logitech Wireless %s PID:%04x",
+                       type_str, dj_hiddev->product);
+       } else {
+               snprintf(dj_hiddev->name, sizeof(dj_hiddev->name),
+                       "Logitech Unifying Device. Wireless PID:%04x",
+                       dj_hiddev->product);
+       }
 
        if (djrcv_dev->type == recvr_type_27mhz)
                dj_hiddev->group = HID_GROUP_LOGITECH_27MHZ_DEVICE;
@@ -809,10 +830,11 @@ static void logi_hidpp_dev_conn_notif_equad(struct hidpp_event *hidpp_report,
                                            struct dj_workitem *workitem)
 {
        workitem->type = WORKITEM_TYPE_PAIRED;
+       workitem->device_type = hidpp_report->params[HIDPP_PARAM_DEVICE_INFO] &
+                               HIDPP_DEVICE_TYPE_MASK;
        workitem->quad_id_msb = hidpp_report->params[HIDPP_PARAM_EQUAD_MSB];
        workitem->quad_id_lsb = hidpp_report->params[HIDPP_PARAM_EQUAD_LSB];
-       switch (hidpp_report->params[HIDPP_PARAM_DEVICE_INFO] &
-               HIDPP_DEVICE_TYPE_MASK) {
+       switch (workitem->device_type) {
        case REPORT_TYPE_KEYBOARD:
                workitem->reports_supported |= STD_KEYBOARD | MULTIMEDIA |
                                               POWER_KEYS | MEDIA_CENTER;
@@ -832,10 +854,12 @@ static void logi_hidpp_dev_conn_notif_27mhz(struct hid_device *hdev,
        switch (hidpp_report->device_index) {
        case 1: /* Index 1 is always a mouse */
        case 2: /* Index 2 is always a mouse */
+               workitem->device_type = HIDPP_DEVICE_TYPE_MOUSE;
                workitem->reports_supported |= STD_MOUSE;
                break;
        case 3: /* Index 3 is always the keyboard */
        case 4: /* Index 4 is used for an optional separate numpad */
+               workitem->device_type = HIDPP_DEVICE_TYPE_KEYBOARD;
                workitem->reports_supported |= STD_KEYBOARD | MULTIMEDIA |
                                               POWER_KEYS;
                break;