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authorRichard Purdie <richard.purdie@linuxfoundation.org>2014-11-27 14:04:29 +0000
committerRichard Purdie <richard.purdie@linuxfoundation.org>2014-11-28 13:59:30 +0000
commit51200e0151f0a3b0ed06649ffe77ef20bb296499 (patch)
tree36accd5cdc36c224908193799c5d12f14bdb3d46
parentab9f17893c4b004906ec232da300915145c125e0 (diff)
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qemu: Add missing wacom HID descriptor
The wacom driver we use is missing a HID descriptor causing it not to work with 3.17 kernels and later. This patch adds in a descriptor to make the driver work again. Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
-rw-r--r--meta/recipes-devtools/qemu/qemu.inc1
-rw-r--r--meta/recipes-devtools/qemu/qemu/wacom.patch130
2 files changed, 131 insertions, 0 deletions
diff --git a/meta/recipes-devtools/qemu/qemu.inc b/meta/recipes-devtools/qemu/qemu.inc
index c8b400a366..3f68a56bd3 100644
--- a/meta/recipes-devtools/qemu/qemu.inc
+++ b/meta/recipes-devtools/qemu/qemu.inc
@@ -16,6 +16,7 @@ SRC_URI = "\
file://larger_default_ram_size.patch \
file://disable-grabs.patch \
file://exclude-some-arm-EABI-obsolete-syscalls.patch \
+ file://wacom.patch \
"
SRC_URI_append_class-native = "\
diff --git a/meta/recipes-devtools/qemu/qemu/wacom.patch b/meta/recipes-devtools/qemu/qemu/wacom.patch
new file mode 100644
index 0000000000..cd06aa4ac6
--- /dev/null
+++ b/meta/recipes-devtools/qemu/qemu/wacom.patch
@@ -0,0 +1,130 @@
+The USB wacom device is missing a HID descriptor which causes it
+to fail to operate with recent kernels (e.g. 3.17).
+
+This patch adds a HID desriptor to the device, based upon one from
+real wcom device.
+
+Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
+
+Upstream-Status: Submitted
+2014/11/27
+
+Index: qemu-2.1.0/hw/usb/dev-wacom.c
+===================================================================
+--- qemu-2.1.0.orig/hw/usb/dev-wacom.c 2014-08-01 15:12:17.000000000 +0100
++++ qemu-2.1.0/hw/usb/dev-wacom.c 2014-10-12 12:13:30.540306042 +0100
+@@ -68,6 +68,89 @@
+ [STR_SERIALNUMBER] = "1",
+ };
+
++static const uint8_t qemu_tablet_hid_report_descriptor[] = {
++ 0x05, 0x01, /* Usage Page (Generic Desktop) */
++ 0x09, 0x02, /* Usage (Mouse) */
++ 0xa1, 0x01, /* Collection (Application) */
++ 0x85, 0x01, /* Report ID (1) */
++ 0x09, 0x01, /* Usage (Pointer) */
++ 0xa1, 0x00, /* Collection (Physical) */
++ 0x05, 0x09, /* Usage Page (Button) */
++ 0x19, 0x01, /* Usage Minimum (1) */
++ 0x29, 0x05, /* Usage Maximum (5) */
++ 0x15, 0x00, /* Logical Minimum (0) */
++ 0x25, 0x01, /* Logical Maximum (1) */
++ 0x95, 0x05, /* Report Count (5) */
++ 0x75, 0x01, /* Report Size (1) */
++ 0x81, 0x02, /* Input (Data, Variable, Absolute) */
++ 0x95, 0x01, /* Report Count (1) */
++ 0x75, 0x03, /* Report Size (3) */
++ 0x81, 0x01, /* Input (Constant) */
++ 0x05, 0x01, /* Usage Page (Generic Desktop) */
++ 0x09, 0x30, /* Usage (X) */
++ 0x09, 0x31, /* Usage (Y) */
++ 0x15, 0x81, /* Logical Minimum (-127) */
++ 0x25, 0x7f, /* Logical Maximum (127) */
++ 0x75, 0x08, /* Report Size (8) */
++ 0x95, 0x02, /* Report Count (2) */
++ 0x81, 0x06, /* Input (Data, Variable, Relative) */
++ 0xc0, /* End Collection */
++ 0xc0, /* End Collection */
++ 0x05, 0x0d, /* Usage Page (Digitizer) */
++ 0x09, 0x01, /* Usage (Digitizer) */
++ 0xa1, 0x01, /* Collection (Application) */
++ 0x85, 0x02, /* Report ID (2) */
++ 0xa1, 0x00, /* Collection (Physical) */
++ 0x06, 0x00, 0xff, /* Usage Page (Vendor 0xff00) */
++ 0x09, 0x01, /* Usage (Digitizer) */
++ 0x15, 0x00, /* Logical Minimum (0) */
++ 0x26, 0xff, 0x00, /* Logical Maximum (255) */
++ 0x75, 0x08, /* Report Size (8) */
++ 0x95, 0x08, /* Report Count (8) */
++ 0x81, 0x02, /* Input (Data, Variable, Absolute) */
++ 0xc0, /* End Collection */
++ 0x09, 0x01, /* Usage (Digitizer) */
++ 0x85, 0x02, /* Report ID (2) */
++ 0x95, 0x01, /* Report Count (1) */
++ 0xb1, 0x02, /* FEATURE (2) */
++ 0xc0, /* End Collection */
++ 0x06, 0x00, 0xff, /* Usage Page (Vendor 0xff00) */
++ 0x09, 0x01, /* Usage (Digitizer) */
++ 0xa1, 0x01, /* Collection (Application) */
++ 0x85, 0x02, /* Report ID (2) */
++ 0x05, 0x0d, /* Usage Page (Digitizer) */
++ 0x09, 0x22, /* Usage (Finger) */
++ 0xa1, 0x00, /* Collection (Physical) */
++ 0x06, 0x00, 0xff, /* Usage Page (Vendor 0xff00) */
++ 0x09, 0x01, /* Usage (Digitizer) */
++ 0x15, 0x00, /* Logical Minimum (0) */
++ 0x26, 0xff, 0x00, /* Logical Maximum */
++ 0x75, 0x08, /* Report Size (8) */
++ 0x95, 0x02, /* Report Count (2) */
++ 0x81, 0x02, /* Input (Data, Variable, Absolute) */
++ 0x05, 0x01, /* Usage Page (Generic Desktop) */
++ 0x09, 0x30, /* Usage (X) */
++ 0x35, 0x00, /* Physical Minimum */
++ 0x46, 0xe0, 0x2e, /* Physical Maximum */
++ 0x26, 0xe0, 0x01, /* Logical Maximum */
++ 0x75, 0x10, /* Report Size (16) */
++ 0x95, 0x01, /* Report Count (1) */
++ 0x81, 0x02, /* Input (Data, Variable, Absolute) */
++ 0x09, 0x31, /* Usage (Y) */
++ 0x46, 0x40, 0x1f, /* Physical Maximum */
++ 0x26, 0x40, 0x01, /* Logical Maximum */
++ 0x81, 0x02, /* Input (Data, Variable, Absolute) */
++ 0x06, 0x00, 0xff, /* Usage Page (Vendor 0xff00) */
++ 0x09, 0x01, /* Usage (Digitizer) */
++ 0x26, 0xff, 0x00, /* Logical Maximum */
++ 0x75, 0x08, /* Report Size (8) */
++ 0x95, 0x0d, /* Report Count (13) */
++ 0x81, 0x02, /* Input (Data, Variable, Absolute) */
++ 0xc0, /* End Collection */
++ 0xc0, /* End Collection */
++};
++
++
+ static const USBDescIface desc_iface_wacom = {
+ .bInterfaceNumber = 0,
+ .bNumEndpoints = 1,
+@@ -85,7 +168,7 @@
+ 0x00, /* u8 country_code */
+ 0x01, /* u8 num_descriptors */
+ 0x22, /* u8 type: Report */
+- 0x6e, 0, /* u16 len */
++ sizeof(qemu_tablet_hid_report_descriptor), 0, /* u16 len */
+ },
+ },
+ },
+@@ -265,6 +350,15 @@
+ }
+
+ switch (request) {
++ case InterfaceRequest | USB_REQ_GET_DESCRIPTOR:
++ switch (value >> 8) {
++ case 0x22:
++ memcpy(data, qemu_tablet_hid_report_descriptor,
++ sizeof(qemu_tablet_hid_report_descriptor));
++ p->actual_length = sizeof(qemu_tablet_hid_report_descriptor);
++ break;
++ }
++ break;
+ case WACOM_SET_REPORT:
+ if (s->mouse_grabbed) {
+ qemu_remove_mouse_event_handler(s->eh_entry);