brain-hackers_pepepper-mirror
/
linux-brain
mirror of https://github.com/brain-hackers/linux-brain.git
1
0
Fork 0
Code Issues Projects Releases Wiki Activity

Input: usbtouchscreen - add support for e2i touchscreen controller 

This patch adds support for the e2i touchscreen controller used in the
Mimo 740 (and probably in other e2i touchscreen products). Tested on
Mimo 740.

Signed-off-by: Florian Echtler <floe@butterbrot.org>
Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
This commit is contained in:
Florian Echtler 2009-07-27 17:35:39 -07:00 committed by Dmitry Torokhov
parent 703490ff7e
commit 9e3b25837a
2 changed files with 54 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

5
drivers/input/touchscreen/Kconfig
View File

@ -474,6 +474,11 @@ config TOUCHSCREEN_USB_JASTEC
bool "JASTEC/DigiTech DTR-02U USB touch controller device support" if EMBEDDED
depends on TOUCHSCREEN_USB_COMPOSITE
config TOUCHSCREEN_USB_E2I
default y
bool "e2i Touchscreen controller (e.g. from Mimo 740)"
depends on TOUCHSCREEN_USB_COMPOSITE
config TOUCHSCREEN_TOUCHIT213
tristate "Sahara TouchIT-213 touchscreen"
select SERIO

49
drivers/input/touchscreen/usbtouchscreen.c
View File

@ -120,6 +120,7 @@ enum {
DEVTYPE_GENERAL_TOUCH,
DEVTYPE_GOTOP,
DEVTYPE_JASTEC,
DEVTYPE_E2I,
};
#define USB_DEVICE_HID_CLASS(vend, prod) \
@ -197,10 +198,46 @@ 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
};