From 61ab44bebdefab296487e7cd723a634849278827 Mon Sep 17 00:00:00 2001 From: Simon Wood Date: Fri, 10 Jun 2011 12:00:26 +0200 Subject: [PATCH] HID: hid-sony: amend Sixaxis descriptor to enable accelerometers Modify the HID descriptor of the Sixaxis controller to allow the reporting of the accelerometers and gyro via a joystick axis. Rewrite section from offset 83: -- 0x75, 0x08, /* Report Size (8), */ /* all the other data lumped together */ 0x95, 0x27, /* Report Count (39), */ 0x09, 0x01, /* Usage (Pointer), */ 0x81, 0x02, /* Input (Variable), */ 0x75, 0x08, /* Report Size (8), */ 0x95, 0x30, /* Report Count (48), */ 0x09, 0x01, /* Usage (Pointer), */ /* Note Output */ 0x91, 0x02, /* Output (Variable), */ 0x75, 0x08, /* Report Size (8), */ 0x95, 0x30, /* Report Count (48), */ 0x09, 0x01, /* Usage (Pointer), */ /* Note Feature */ 0xB1, 0x02, /* Feature (Variable), */ -- with -- /* last 2 not used... */ 0x95, 0x13, /* Report Count (19), */ 0x09, 0x01, /* Usage (Pointer), */ 0x81, 0x02, /* Input (Variable), */ /* Padding */ 0x95, 0x0C, /* Report Count (12), */ 0x81, 0x01, /* Input (Constant), */ 0x75, 0x10, /* Report Size (16), */ 0x95, 0x04, /* Report Count (4), */ 0x26, 0xFF, 0x03, /* Logical Maximum (1023), */ 0x46, 0xFF, 0x03, /* Physical Maximum (1023), */ 0x09, 0x01, /* Usage (Pointer), */ 0x81, 0x02, /* Input (Variable), */ -- Signed-off-by: Simon Wood Signed-off-by: Antonio Ospite Signed-off-by: Jiri Kosina --- drivers/hid/hid-sony.c | 15 +++++++++++++++ 1 file changed, 15 insertions(+) diff --git a/drivers/hid/hid-sony.c b/drivers/hid/hid-sony.c index 936c911..5398507 100644 --- a/drivers/hid/hid-sony.c +++ b/drivers/hid/hid-sony.c @@ -28,6 +28,12 @@ #define SIXAXIS_CONTROLLER_USB (1 << 1) #define SIXAXIS_CONTROLLER_BT (1 << 2) +static const u8 sixaxis_rdesc_fixup[] = { + 0x95, 0x13, 0x09, 0x01, 0x81, 0x02, 0x95, 0x0C, + 0x81, 0x01, 0x75, 0x10, 0x95, 0x04, 0x26, 0xFF, + 0x03, 0x46, 0xFF, 0x03, 0x09, 0x01, 0x81, 0x02 +}; + struct sony_sc { unsigned long quirks; }; @@ -43,6 +49,15 @@ static __u8 *sony_report_fixup(struct hid_device *hdev, __u8 *rdesc, hid_info(hdev, "Fixing up Sony Vaio VGX report descriptor\n"); rdesc[55] = 0x06; } + + /* The HID descriptor exposed over BT has a trailing zero byte */ + if ((((sc->quirks & SIXAXIS_CONTROLLER_USB) && *rsize == 148) || + ((sc->quirks & SIXAXIS_CONTROLLER_BT) && *rsize == 149)) && + rdesc[83] == 0x75) { + hid_info(hdev, "Fixing up Sony Sixaxis report descriptor\n"); + memcpy((void *)&rdesc[83], (void *)&sixaxis_rdesc_fixup, + sizeof(sixaxis_rdesc_fixup)); + } return rdesc; } -- 2.7.4