diff options
Diffstat (limited to 'drivers/input/touchscreen/usbtouchscreen.c')
| -rw-r--r-- | drivers/input/touchscreen/usbtouchscreen.c | 49 |
1 files changed, 49 insertions, 0 deletions
diff --git a/drivers/input/touchscreen/usbtouchscreen.c b/drivers/input/touchscreen/usbtouchscreen.c index c07be07a69b..68ece5801a5 100644 --- a/drivers/input/touchscreen/usbtouchscreen.c +++ b/drivers/input/touchscreen/usbtouchscreen.c @@ -120,6 +120,7 @@ enum { DEVTYPE_GENERAL_TOUCH, DEVTYPE_GOTOP, DEVTYPE_JASTEC, + DEVTYPE_E2I, }; #define USB_DEVICE_HID_CLASS(vend, prod) \ @@ -197,11 +198,47 @@ static struct usb_device_id usbtouch_devices[] = { {USB_DEVICE(0x0f92, 0x0001), .driver_info = DEVTYPE_JASTEC}, #endif +#ifdef CONFIG_TOUCHSCREEN_USB_E2I + {USB_DEVICE(0x1ac7, 0x0001), .driver_info = DEVTYPE_E2I}, +#endif {} }; /***************************************************************************** + * e2i Part + */ + +#ifdef CONFIG_TOUCHSCREEN_USB_E2I +static int e2i_init(struct usbtouch_usb *usbtouch) +{ + int ret; + + ret = usb_control_msg(usbtouch->udev, usb_rcvctrlpipe(usbtouch->udev, 0), + 0x01, 0x02, 0x0000, 0x0081, + NULL, 0, USB_CTRL_SET_TIMEOUT); + + dbg("%s - usb_control_msg - E2I_RESET - bytes|err: %d", + __func__, ret); + return ret; +} + +static int e2i_read_data(struct usbtouch_usb *dev, unsigned char *pkt) +{ + int tmp = (pkt[0] << 8) | pkt[1]; + dev->x = (pkt[2] << 8) | pkt[3]; + dev->y = (pkt[4] << 8) | pkt[5]; + + tmp = tmp - 0xA000; + dev->touch = (tmp > 0); + dev->press = (tmp > 0 ? tmp : 0); + + return 1; +} +#endif + + +/***************************************************************************** * eGalax part */ @@ -734,6 +771,18 @@ static struct usbtouch_device_info usbtouch_dev_info[] = { .read_data = jastec_read_data, }, #endif + +#ifdef CONFIG_TOUCHSCREEN_USB_E2I + [DEVTYPE_E2I] = { + .min_xc = 0x0, + .max_xc = 0x7fff, + .min_yc = 0x0, + .max_yc = 0x7fff, + .rept_size = 6, + .init = e2i_init, + .read_data = e2i_read_data, + }, +#endif }; |