@@ -759,7 +759,9 @@
#define USB_DEVICE_ID_LOGITECH_CORDLESS_DESKTOP_LX500 0xc512
#define USB_DEVICE_ID_MX3000_RECEIVER 0xc513
#define USB_DEVICE_ID_LOGITECH_UNIFYING_RECEIVER 0xc52b
+#define USB_DEVICE_ID_LOGITECH_NANO_RECEIVER 0xc52f
#define USB_DEVICE_ID_LOGITECH_UNIFYING_RECEIVER_2 0xc532
+#define USB_DEVICE_ID_LOGITECH_NANO_RECEIVER_2 0xc534
#define USB_DEVICE_ID_SPACETRAVELLER 0xc623
#define USB_DEVICE_ID_SPACENAVIGATOR 0xc626
#define USB_DEVICE_ID_DINOVO_DESKTOP 0xc704
@@ -100,9 +100,26 @@
#define MEDIA_CENTER BIT(8)
#define KBD_LEDS BIT(14)
+/* HID++ Device Connected Notification */
+#define REPORT_TYPE_NOTIF_DEVICE_CONNECTED 0x41
+#define HIDPP_PARAM_PROTO_TYPE 0x00
+#define HIDPP_PARAM_DEVICE_INFO 0x01
+#define HIDPP_PARAM_EQUAD_LSB 0x02
+#define HIDPP_PARAM_EQUAD_MSB 0x03
+#define HIDPP_DEVICE_TYPE_MASK GENMASK(3, 0)
+#define HIDPP_LINK_STATUS_MASK BIT(6)
+
+#define HIDPP_SET_REGISTER 0x80
#define HIDPP_GET_LONG_REGISTER 0x83
+#define HIDPP_REG_CONNECTION_STATE 0x02
#define HIDPP_REG_PAIRING_INFORMATION 0xB5
#define HIDPP_PAIRING_INFORMATION 0x20
+#define HIDPP_FAKE_DEVICE_ARRIVAL 0x02
+
+enum recvr_type {
+ recvr_type_dj,
+ recvr_type_hidpp,
+};
struct dj_report {
u8 report_id;
@@ -130,6 +147,8 @@ struct dj_receiver_dev {
struct kfifo notif_fifo;
unsigned long last_query; /* in jiffies */
bool ready;
+ enum recvr_type type;
+ unsigned int unnumbered_application;
spinlock_t lock;
};
@@ -435,6 +454,7 @@ static void dj_put_receiver_dev(struct hid_device *hdev)
}
static struct dj_receiver_dev *dj_get_receiver_dev(struct hid_device *hdev,
+ enum recvr_type type,
unsigned int application,
bool is_hidpp)
{
@@ -460,6 +480,7 @@ static struct dj_receiver_dev *dj_get_receiver_dev(struct hid_device *hdev,
kref_init(&djrcv_dev->kref);
list_add_tail(&djrcv_dev->list, &dj_hdev_list);
djrcv_dev->last_query = jiffies;
+ djrcv_dev->type = type;
}
if (application == HID_GD_KEYBOARD)
@@ -703,6 +724,94 @@ static void logi_dj_recv_queue_notification(struct dj_receiver_dev *djrcv_dev,
}
}
+static void logi_hidpp_dev_conn_notif_equad(struct hidpp_event *hidpp_report,
+ struct dj_workitem *workitem)
+{
+ workitem->type = WORKITEM_TYPE_PAIRED;
+ 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) {
+ case REPORT_TYPE_KEYBOARD:
+ workitem->reports_supported |= STD_KEYBOARD | MULTIMEDIA |
+ POWER_KEYS | MEDIA_CENTER;
+ break;
+ case REPORT_TYPE_MOUSE:
+ workitem->reports_supported |= STD_MOUSE;
+ break;
+ }
+}
+
+static void logi_hidpp_recv_queue_notif(struct hid_device *hdev,
+ struct hidpp_event *hidpp_report)
+{
+ /* We are called from atomic context (tasklet && djrcv->lock held) */
+ struct dj_receiver_dev *djrcv_dev = hid_get_drvdata(hdev);
+ const char *device_type = "UNKNOWN";
+ struct dj_workitem workitem = {
+ .type = WORKITEM_TYPE_EMPTY,
+ .device_index = hidpp_report->device_index,
+ };
+
+ switch (hidpp_report->params[HIDPP_PARAM_PROTO_TYPE]) {
+ case 0x01:
+ device_type = "Bluetooth";
+ break;
+ case 0x02:
+ device_type = "27 Mhz";
+ break;
+ case 0x03:
+ device_type = "QUAD or eQUAD";
+ logi_hidpp_dev_conn_notif_equad(hidpp_report, &workitem);
+ break;
+ case 0x04:
+ device_type = "eQUAD step 4 DJ";
+ logi_hidpp_dev_conn_notif_equad(hidpp_report, &workitem);
+ break;
+ case 0x05:
+ device_type = "DFU Lite";
+ break;
+ case 0x06:
+ device_type = "eQUAD step 4 Lite";
+ logi_hidpp_dev_conn_notif_equad(hidpp_report, &workitem);
+ break;
+ case 0x07:
+ device_type = "eQUAD step 4 Gaming";
+ break;
+ case 0x08:
+ device_type = "eQUAD step 4 for gamepads";
+ break;
+ case 0x0a:
+ device_type = "eQUAD nano Lite";
+ logi_hidpp_dev_conn_notif_equad(hidpp_report, &workitem);
+ break;
+ case 0x0c:
+ device_type = "eQUAD Lightspeed";
+ break;
+ }
+
+ if (workitem.type == WORKITEM_TYPE_EMPTY) {
+ hid_warn(hdev,
+ "unusable device of type %s (0x%02x) connected on slot %d",
+ device_type,
+ hidpp_report->params[HIDPP_PARAM_PROTO_TYPE],
+ hidpp_report->device_index);
+ return;
+ }
+
+ hid_info(hdev, "device of type %s (0x%02x) connected on slot %d",
+ device_type, hidpp_report->params[HIDPP_PARAM_PROTO_TYPE],
+ hidpp_report->device_index);
+
+
+ kfifo_in(&djrcv_dev->notif_fifo, &workitem, sizeof(workitem));
+
+ if (schedule_work(&djrcv_dev->work) == 0) {
+ dbg_hid("%s: did not schedule the work item, was already queued\n",
+ __func__);
+ }
+}
+
static void logi_dj_recv_forward_null_report(struct dj_receiver_dev *djrcv_dev,
struct dj_report *dj_report)
{
@@ -758,6 +867,36 @@ static void logi_dj_recv_forward_report(struct dj_device *dj_dev, u8 *data,
dbg_hid("hid_input_report error\n");
}
+static void logi_dj_recv_forward_input_report(struct hid_device *hdev,
+ u8 *data, int size)
+{
+ struct dj_receiver_dev *djrcv_dev = hid_get_drvdata(hdev);
+ struct dj_device *dj_dev;
+ unsigned long flags;
+ u8 report = data[0];
+ int i;
+
+ if (report > REPORT_TYPE_RFREPORT_LAST) {
+ hid_err(hdev, "Unexpect input report number %d\n", report);
+ return;
+ }
+
+ spin_lock_irqsave(&djrcv_dev->lock, flags);
+ for (i = 0; i < (DJ_MAX_PAIRED_DEVICES + DJ_DEVICE_INDEX_MIN); i++) {
+ dj_dev = djrcv_dev->paired_dj_devices[i];
+ if (dj_dev && (dj_dev->reports_supported & BIT(report))) {
+ logi_dj_recv_forward_report(dj_dev, data, size);
+ spin_unlock_irqrestore(&djrcv_dev->lock, flags);
+ return;
+ }
+ }
+
+ logi_dj_recv_queue_unknown_work(djrcv_dev);
+ spin_unlock_irqrestore(&djrcv_dev->lock, flags);
+
+ dbg_hid("No dj-devs handling input report number %d\n", report);
+}
+
static int logi_dj_recv_send_report(struct dj_receiver_dev *djrcv_dev,
struct dj_report *dj_report)
{
@@ -783,6 +922,31 @@ static int logi_dj_recv_send_report(struct dj_receiver_dev *djrcv_dev,
return 0;
}
+static int logi_dj_recv_query_hidpp_devices(struct dj_receiver_dev *djrcv_dev)
+{
+ const u8 template[] = {REPORT_ID_HIDPP_SHORT,
+ HIDPP_RECEIVER_INDEX,
+ HIDPP_SET_REGISTER,
+ HIDPP_REG_CONNECTION_STATE,
+ HIDPP_FAKE_DEVICE_ARRIVAL,
+ 0x00, 0x00};
+ u8 *hidpp_report;
+ int retval;
+
+ hidpp_report = kmemdup(template, sizeof(template), GFP_KERNEL);
+ if (!hidpp_report)
+ return -ENOMEM;
+
+ retval = hid_hw_raw_request(djrcv_dev->hidpp,
+ REPORT_ID_HIDPP_SHORT,
+ hidpp_report, sizeof(template),
+ HID_OUTPUT_REPORT,
+ HID_REQ_SET_REPORT);
+
+ kfree(hidpp_report);
+ return 0;
+}
+
static int logi_dj_recv_query_paired_devices(struct dj_receiver_dev *djrcv_dev)
{
struct dj_report *dj_report;
@@ -790,6 +954,9 @@ static int logi_dj_recv_query_paired_devices(struct dj_receiver_dev *djrcv_dev)
djrcv_dev->last_query = jiffies;
+ if (djrcv_dev->type != recvr_type_dj)
+ return logi_dj_recv_query_hidpp_devices(djrcv_dev);
+
dj_report = kzalloc(sizeof(struct dj_report), GFP_KERNEL);
if (!dj_report)
return -ENOMEM;
@@ -808,24 +975,30 @@ static int logi_dj_recv_switch_to_dj_mode(struct dj_receiver_dev *djrcv_dev,
struct hid_device *hdev = djrcv_dev->hidpp;
struct dj_report *dj_report;
u8 *buf;
- int retval;
+ int retval = 0;
dj_report = kzalloc(sizeof(struct dj_report), GFP_KERNEL);
if (!dj_report)
return -ENOMEM;
- dj_report->report_id = REPORT_ID_DJ_SHORT;
- dj_report->device_index = 0xFF;
- dj_report->report_type = REPORT_TYPE_CMD_SWITCH;
- dj_report->report_params[CMD_SWITCH_PARAM_DEVBITFIELD] = 0x3F;
- dj_report->report_params[CMD_SWITCH_PARAM_TIMEOUT_SECONDS] = (u8)timeout;
- retval = logi_dj_recv_send_report(djrcv_dev, dj_report);
- /*
- * Ugly sleep to work around a USB 3.0 bug when the receiver is still
- * processing the "switch-to-dj" command while we send an other command.
- * 50 msec should gives enough time to the receiver to be ready.
- */
- msleep(50);
+ if (djrcv_dev->type == recvr_type_dj) {
+ dj_report->report_id = REPORT_ID_DJ_SHORT;
+ dj_report->device_index = 0xFF;
+ dj_report->report_type = REPORT_TYPE_CMD_SWITCH;
+ dj_report->report_params[CMD_SWITCH_PARAM_DEVBITFIELD] = 0x3F;
+ dj_report->report_params[CMD_SWITCH_PARAM_TIMEOUT_SECONDS] =
+ (u8)timeout;
+
+ retval = logi_dj_recv_send_report(djrcv_dev, dj_report);
+
+ /*
+ * Ugly sleep to work around a USB 3.0 bug when the receiver is
+ * still processing the "switch-to-dj" command while we send an
+ * other command.
+ * 50 msec should gives enough time to the receiver to be ready.
+ */
+ msleep(50);
+ }
/*
* Magical bits to set up hidpp notifications when the dj devices
@@ -909,6 +1082,16 @@ static int logi_dj_ll_raw_request(struct hid_device *hid,
if (buf[0] != REPORT_TYPE_LEDS)
return -EINVAL;
+ if (djrcv_dev->type != recvr_type_dj && count >= 2) {
+ if (!djrcv_dev->keyboard) {
+ hid_warn(hid, "Received REPORT_TYPE_LEDS request before the keyboard interface was enumerated\n");
+ return 0;
+ }
+ /* usbhid overrides the report ID and ignores the first byte */
+ return hid_hw_raw_request(djrcv_dev->keyboard, 0, buf, count,
+ report_type, reqtype);
+ }
+
out_buf = kzalloc(DJREPORT_SHORT_LENGTH, GFP_ATOMIC);
if (!out_buf)
return -ENOMEM;
@@ -1089,6 +1272,7 @@ static int logi_dj_hidpp_event(struct hid_device *hdev,
{
struct dj_receiver_dev *djrcv_dev = hid_get_drvdata(hdev);
struct hidpp_event *hidpp_report = (struct hidpp_event *) data;
+ struct dj_device *dj_dev;
unsigned long flags;
u8 device_index = hidpp_report->device_index;
@@ -1125,14 +1309,16 @@ static int logi_dj_hidpp_event(struct hid_device *hdev,
spin_lock_irqsave(&djrcv_dev->lock, flags);
- if (!djrcv_dev->paired_dj_devices[device_index])
- /* received an event for an unknown device, bail out */
- goto out;
-
- logi_dj_recv_forward_report(djrcv_dev->paired_dj_devices[device_index],
- data, size);
+ dj_dev = djrcv_dev->paired_dj_devices[device_index];
+ if (dj_dev) {
+ logi_dj_recv_forward_report(dj_dev, data, size);
+ } else {
+ if (hidpp_report->sub_id == REPORT_TYPE_NOTIF_DEVICE_CONNECTED)
+ logi_hidpp_recv_queue_notif(hdev, hidpp_report);
+ else
+ logi_dj_recv_queue_unknown_work(djrcv_dev);
+ }
-out:
spin_unlock_irqrestore(&djrcv_dev->lock, flags);
return false;
@@ -1142,8 +1328,30 @@ static int logi_dj_raw_event(struct hid_device *hdev,
struct hid_report *report, u8 *data,
int size)
{
+ struct dj_receiver_dev *djrcv_dev = hid_get_drvdata(hdev);
dbg_hid("%s, size:%d\n", __func__, size);
+ if (!hdev->report_enum[HID_INPUT_REPORT].numbered) {
+
+ if (djrcv_dev->unnumbered_application == HID_GD_KEYBOARD) {
+ /*
+ * For the keyboard, we can reuse the same report by
+ * using the second byte which is constant in the USB
+ * HID report descriptor.
+ */
+ data[1] = data[0];
+ data[0] = REPORT_TYPE_KEYBOARD;
+
+ logi_dj_recv_forward_input_report(hdev, data, size);
+
+ /* restore previous state */
+ data[0] = data[1];
+ data[1] = 0;
+ }
+
+ return false;
+ }
+
switch (data[0]) {
case REPORT_ID_DJ_SHORT:
if (size != DJREPORT_SHORT_LENGTH) {
@@ -1167,6 +1375,8 @@ static int logi_dj_raw_event(struct hid_device *hdev,
return logi_dj_hidpp_event(hdev, report, data, size);
}
+ logi_dj_recv_forward_input_report(hdev, data, size);
+
return false;
}
@@ -1192,6 +1402,10 @@ static int logi_dj_probe(struct hid_device *hdev,
rep_enum = &hdev->report_enum[HID_INPUT_REPORT];
+ /* no input reports, bail out */
+ if (list_empty(&rep_enum->report_list))
+ return -ENODEV;
+
/*
* Check for the HID++ application.
* Note: we should theoretically check for HID++ and DJ
@@ -1204,12 +1418,12 @@ static int logi_dj_probe(struct hid_device *hdev,
/* Ignore interfaces without DJ/HID++ collection, they will not carry
* any data, dont create any hid_device for them */
- if (!has_hidpp)
+ if (!has_hidpp && id->driver_data == recvr_type_dj)
return -ENODEV;
/* get the current application attached to the node */
rep = list_first_entry(&rep_enum->report_list, struct hid_report, list);
- djrcv_dev = dj_get_receiver_dev(hdev,
+ djrcv_dev = dj_get_receiver_dev(hdev, id->driver_data,
rep->application, has_hidpp);
if (!djrcv_dev) {
dev_err(&hdev->dev,
@@ -1217,21 +1431,25 @@ static int logi_dj_probe(struct hid_device *hdev,
return -ENOMEM;
}
+ if (!rep_enum->numbered)
+ djrcv_dev->unnumbered_application = rep->application;
+
/* Starts the usb device and connects to upper interfaces hiddev and
* hidraw */
- retval = hid_hw_start(hdev, HID_CONNECT_DEFAULT);
+ retval = hid_hw_start(hdev, HID_CONNECT_HIDRAW|HID_CONNECT_HIDDEV);
if (retval) {
dev_err(&hdev->dev,
"%s:hid_hw_start returned error\n", __func__);
goto hid_hw_start_fail;
}
- retval = logi_dj_recv_switch_to_dj_mode(djrcv_dev, 0);
- if (retval < 0) {
- dev_err(&hdev->dev,
- "%s:logi_dj_recv_switch_to_dj_mode returned error:%d\n",
- __func__, retval);
- goto switch_to_dj_mode_fail;
+ if (has_hidpp) {
+ retval = logi_dj_recv_switch_to_dj_mode(djrcv_dev, 0);
+ if (retval < 0) {
+ hid_err(hdev, "%s: logi_dj_recv_switch_to_dj_mode returned error:%d\n",
+ __func__, retval);
+ goto switch_to_dj_mode_fail;
+ }
}
/* This is enabling the polling urb on the IN endpoint */
@@ -1245,14 +1463,16 @@ static int logi_dj_probe(struct hid_device *hdev,
/* Allow incoming packets to arrive: */
hid_device_io_start(hdev);
- spin_lock_irqsave(&djrcv_dev->lock, flags);
- djrcv_dev->ready = true;
- spin_unlock_irqrestore(&djrcv_dev->lock, flags);
- retval = logi_dj_recv_query_paired_devices(djrcv_dev);
- if (retval < 0) {
- dev_err(&hdev->dev, "%s:logi_dj_recv_query_paired_devices "
- "error:%d\n", __func__, retval);
- goto logi_dj_recv_query_paired_devices_failed;
+ if (has_hidpp) {
+ spin_lock_irqsave(&djrcv_dev->lock, flags);
+ djrcv_dev->ready = true;
+ spin_unlock_irqrestore(&djrcv_dev->lock, flags);
+ retval = logi_dj_recv_query_paired_devices(djrcv_dev);
+ if (retval < 0) {
+ hid_err(hdev, "%s: logi_dj_recv_query_paired_devices error:%d\n",
+ __func__, retval);
+ goto logi_dj_recv_query_paired_devices_failed;
+ }
}
return retval;
@@ -1275,6 +1495,9 @@ static int logi_dj_reset_resume(struct hid_device *hdev)
int retval;
struct dj_receiver_dev *djrcv_dev = hid_get_drvdata(hdev);
+ if (djrcv_dev->hidpp != hdev)
+ return 0;
+
retval = logi_dj_recv_switch_to_dj_mode(djrcv_dev, 0);
if (retval < 0) {
dev_err(&hdev->dev,
@@ -1331,9 +1554,19 @@ static void logi_dj_remove(struct hid_device *hdev)
static const struct hid_device_id logi_dj_receivers[] = {
{HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH,
- USB_DEVICE_ID_LOGITECH_UNIFYING_RECEIVER)},
+ USB_DEVICE_ID_LOGITECH_UNIFYING_RECEIVER),
+ .driver_data = recvr_type_dj},
{HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH,
- USB_DEVICE_ID_LOGITECH_UNIFYING_RECEIVER_2)},
+ USB_DEVICE_ID_LOGITECH_UNIFYING_RECEIVER_2),
+ .driver_data = recvr_type_dj},
+ { /* Logitech Nano (non DJ) receiver */
+ HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH,
+ USB_DEVICE_ID_LOGITECH_NANO_RECEIVER),
+ .driver_data = recvr_type_hidpp},
+ { /* Logitech Nano (non DJ) receiver */
+ HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH,
+ USB_DEVICE_ID_LOGITECH_NANO_RECEIVER_2),
+ .driver_data = recvr_type_hidpp},
{}
};