Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/hid

Pull HID fixes from Jiri Kosina:

 - hid-dr regression fix for certain dragonrise gamepads (device ID
   0079:0006), from Ioan-Adrian Ratiu

 - dma-on-stack fix for hid-led driver, from Heiner Kallweit

 - quirk for Akai MIDImix device

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/hid:
  HID: add quirk for Akai MIDImix.
  Revert "HID: dragonrise: fix HID Descriptor for 0x0006 PID"
  HID: hid-dr: add input mapping for axis selection
  HID: hid-led: fix issue with transfer buffer not being dma capable

diff --git a/drivers/hid/hid-dr.c b/drivers/hid/hid-dr.c
index 8fd4bf7..818ea7d 100644 (file)
--- a/drivers/hid/hid-dr.c
+++ b/drivers/hid/hid-dr.c
@@ -234,58 +234,6 @@ static __u8 pid0011_rdesc_fixed[] = {
        0xC0                /*  End Collection                  */
 };
 
-static __u8 pid0006_rdesc_fixed[] = {
-       0x05, 0x01,        /* Usage Page (Generic Desktop)      */
-       0x09, 0x04,        /* Usage (Joystick)                  */
-       0xA1, 0x01,        /* Collection (Application)          */
-       0xA1, 0x02,        /*   Collection (Logical)            */
-       0x75, 0x08,        /*     Report Size (8)               */
-       0x95, 0x05,        /*     Report Count (5)              */
-       0x15, 0x00,        /*     Logical Minimum (0)           */
-       0x26, 0xFF, 0x00,  /*     Logical Maximum (255)         */
-       0x35, 0x00,        /*     Physical Minimum (0)          */
-       0x46, 0xFF, 0x00,  /*     Physical Maximum (255)        */
-       0x09, 0x30,        /*     Usage (X)                     */
-       0x09, 0x33,        /*     Usage (Ry)                    */
-       0x09, 0x32,        /*     Usage (Z)                     */
-       0x09, 0x31,        /*     Usage (Y)                     */
-       0x09, 0x34,        /*     Usage (Ry)                    */
-       0x81, 0x02,        /*     Input (Variable)              */
-       0x75, 0x04,        /*     Report Size (4)               */
-       0x95, 0x01,        /*     Report Count (1)              */
-       0x25, 0x07,        /*     Logical Maximum (7)           */
-       0x46, 0x3B, 0x01,  /*     Physical Maximum (315)        */
-       0x65, 0x14,        /*     Unit (Centimeter)             */
-       0x09, 0x39,        /*     Usage (Hat switch)            */
-       0x81, 0x42,        /*     Input (Variable)              */
-       0x65, 0x00,        /*     Unit (None)                   */
-       0x75, 0x01,        /*     Report Size (1)               */
-       0x95, 0x0C,        /*     Report Count (12)             */
-       0x25, 0x01,        /*     Logical Maximum (1)           */
-       0x45, 0x01,        /*     Physical Maximum (1)          */
-       0x05, 0x09,        /*     Usage Page (Button)           */
-       0x19, 0x01,        /*     Usage Minimum (0x01)          */
-       0x29, 0x0C,        /*     Usage Maximum (0x0C)          */
-       0x81, 0x02,        /*     Input (Variable)              */
-       0x06, 0x00, 0xFF,  /*     Usage Page (Vendor Defined)   */
-       0x75, 0x01,        /*     Report Size (1)               */
-       0x95, 0x08,        /*     Report Count (8)              */
-       0x25, 0x01,        /*     Logical Maximum (1)           */
-       0x45, 0x01,        /*     Physical Maximum (1)          */
-       0x09, 0x01,        /*     Usage (0x01)                  */
-       0x81, 0x02,        /*     Input (Variable)              */
-       0xC0,              /*   End Collection                  */
-       0xA1, 0x02,        /*   Collection (Logical)            */
-       0x75, 0x08,        /*     Report Size (8)               */
-       0x95, 0x07,        /*     Report Count (7)              */
-       0x46, 0xFF, 0x00,  /*     Physical Maximum (255)        */
-       0x26, 0xFF, 0x00,  /*     Logical Maximum (255)         */
-       0x09, 0x02,        /*     Usage (0x02)                  */
-       0x91, 0x02,        /*     Output (Variable)             */
-       0xC0,              /*   End Collection                  */
-       0xC0               /* End Collection                    */
-};
-
 static __u8 *dr_report_fixup(struct hid_device *hdev, __u8 *rdesc,
                                unsigned int *rsize)
 {
@@ -296,16 +244,34 @@ static __u8 *dr_report_fixup(struct hid_device *hdev, __u8 *rdesc,
                        *rsize = sizeof(pid0011_rdesc_fixed);
                }
                break;
-       case 0x0006:
-               if (*rsize == sizeof(pid0006_rdesc_fixed)) {
-                       rdesc = pid0006_rdesc_fixed;
-                       *rsize = sizeof(pid0006_rdesc_fixed);
-               }
-               break;
        }
        return rdesc;
 }
 
+#define map_abs(c)      hid_map_usage(hi, usage, bit, max, EV_ABS, (c))
+#define map_rel(c)      hid_map_usage(hi, usage, bit, max, EV_REL, (c))
+
+static int dr_input_mapping(struct hid_device *hdev, struct hid_input *hi,
+                           struct hid_field *field, struct hid_usage *usage,
+                           unsigned long **bit, int *max)
+{
+       switch (usage->hid) {
+       /*
+        * revert to the old hid-input behavior where axes
+        * can be randomly assigned when hid->usage is reused.
+        */
+       case HID_GD_X: case HID_GD_Y: case HID_GD_Z:
+       case HID_GD_RX: case HID_GD_RY: case HID_GD_RZ:
+               if (field->flags & HID_MAIN_ITEM_RELATIVE)
+                       map_rel(usage->hid & 0xf);
+               else
+                       map_abs(usage->hid & 0xf);
+               return 1;
+       }
+
+       return 0;
+}
+
 static int dr_probe(struct hid_device *hdev, const struct hid_device_id *id)
 {
        int ret;
@@ -352,6 +318,7 @@ static struct hid_driver dr_driver = {
        .id_table = dr_devices,
        .report_fixup = dr_report_fixup,
        .probe = dr_probe,
+       .input_mapping = dr_input_mapping,
 };
 module_hid_driver(dr_driver);
 

diff --git a/drivers/hid/hid-ids.h b/drivers/hid/hid-ids.h
index cd59c79..6cfb5ca 100644 (file)
--- a/drivers/hid/hid-ids.h
+++ b/drivers/hid/hid-ids.h
@@ -64,6 +64,9 @@
 #define USB_VENDOR_ID_AKAI             0x2011
 #define USB_DEVICE_ID_AKAI_MPKMINI2    0x0715
 
+#define USB_VENDOR_ID_AKAI_09E8                0x09E8
+#define USB_DEVICE_ID_AKAI_09E8_MIDIMIX        0x0031
+
 #define USB_VENDOR_ID_ALCOR            0x058f
 #define USB_DEVICE_ID_ALCOR_USBRS232   0x9720
 

diff --git a/drivers/hid/hid-led.c b/drivers/hid/hid-led.c
index d8d55f3..d3e1ab1 100644 (file)
--- a/drivers/hid/hid-led.c
+++ b/drivers/hid/hid-led.c
@@ -100,6 +100,7 @@ struct hidled_device {
        const struct hidled_config *config;
        struct hid_device       *hdev;
        struct hidled_rgb       *rgb;
+       u8                      *buf;
        struct mutex            lock;
 };
 
@@ -118,13 +119,19 @@ static int hidled_send(struct hidled_device *ldev, __u8 *buf)
 
        mutex_lock(&ldev->lock);
 
+       /*
+        * buffer provided to hid_hw_raw_request must not be on the stack
+        * and must not be part of a data structure
+        */
+       memcpy(ldev->buf, buf, ldev->config->report_size);
+
        if (ldev->config->report_type == RAW_REQUEST)
-               ret = hid_hw_raw_request(ldev->hdev, buf[0], buf,
+               ret = hid_hw_raw_request(ldev->hdev, buf[0], ldev->buf,
                                         ldev->config->report_size,
                                         HID_FEATURE_REPORT,
                                         HID_REQ_SET_REPORT);
        else if (ldev->config->report_type == OUTPUT_REPORT)
-               ret = hid_hw_output_report(ldev->hdev, buf,
+               ret = hid_hw_output_report(ldev->hdev, ldev->buf,
                                           ldev->config->report_size);
        else
                ret = -EINVAL;
@@ -147,17 +154,21 @@ static int hidled_recv(struct hidled_device *ldev, __u8 *buf)
 
        mutex_lock(&ldev->lock);
 
-       ret = hid_hw_raw_request(ldev->hdev, buf[0], buf,
+       memcpy(ldev->buf, buf, ldev->config->report_size);
+
+       ret = hid_hw_raw_request(ldev->hdev, buf[0], ldev->buf,
                                 ldev->config->report_size,
                                 HID_FEATURE_REPORT,
                                 HID_REQ_SET_REPORT);
        if (ret < 0)
                goto err;
 
-       ret = hid_hw_raw_request(ldev->hdev, buf[0], buf,
+       ret = hid_hw_raw_request(ldev->hdev, buf[0], ldev->buf,
                                 ldev->config->report_size,
                                 HID_FEATURE_REPORT,
                                 HID_REQ_GET_REPORT);
+
+       memcpy(buf, ldev->buf, ldev->config->report_size);
 err:
        mutex_unlock(&ldev->lock);
 
@@ -447,6 +458,10 @@ static int hidled_probe(struct hid_device *hdev, const struct hid_device_id *id)
        if (!ldev)
                return -ENOMEM;
 
+       ldev->buf = devm_kmalloc(&hdev->dev, MAX_REPORT_SIZE, GFP_KERNEL);
+       if (!ldev->buf)
+               return -ENOMEM;
+
        ret = hid_parse(hdev);
        if (ret)
                return ret;

diff --git a/drivers/hid/usbhid/hid-quirks.c b/drivers/hid/usbhid/hid-quirks.c
index 0a0eca5..354d49e 100644 (file)
--- a/drivers/hid/usbhid/hid-quirks.c
+++ b/drivers/hid/usbhid/hid-quirks.c
@@ -56,6 +56,7 @@ static const struct hid_blacklist {
 
        { USB_VENDOR_ID_AIREN, USB_DEVICE_ID_AIREN_SLIMPLUS, HID_QUIRK_NOGET },
        { USB_VENDOR_ID_AKAI, USB_DEVICE_ID_AKAI_MPKMINI2, HID_QUIRK_NO_INIT_REPORTS },
+       { USB_VENDOR_ID_AKAI_09E8, USB_DEVICE_ID_AKAI_09E8_MIDIMIX, HID_QUIRK_NO_INIT_REPORTS },
        { USB_VENDOR_ID_ATEN, USB_DEVICE_ID_ATEN_UC100KM, HID_QUIRK_NOGET },
        { USB_VENDOR_ID_ATEN, USB_DEVICE_ID_ATEN_CS124U, HID_QUIRK_NOGET },
        { USB_VENDOR_ID_ATEN, USB_DEVICE_ID_ATEN_2PORTKVM, HID_QUIRK_NOGET },