usbtouchscreen: version 0.4
changes over 0.3: - some more eGalax device IDs (from eGalax driver/spec) - return the error code in probe() - 3M/MTouch init fixes, tested by Don Alexander - eGalax fixes for bugs in multi-packet handling, spottet by Pieter Grimmerink - support for some eTurboTouch devices, mostly by Pieter Grimmerink - support for Gunze AHL61 controller (untested, but simple enough) Signed-off-by: Daniel Ritz <daniel.ritz@gmx.ch> Cc: Pieter Grimmerink <p.grimmerink@inepro.com> Cc: Don Alexander <debug@roosoft.ltd.uk> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>hifive-unleashed-5.1
Daniel Ritz
Greg Kroah-Hartman
parent
d388dab7b5
commit
5d8926658c
|
|
@ -205,10 +205,12 @@ config USB_TOUCHSCREEN
|
|||
depends on USB && INPUT
|
||||
---help---
|
||||
USB Touchscreen driver for:
|
||||
- eGalax Touchkit USB
|
||||
- eGalax Touchkit USB (also includes eTurboTouch CT-410/510/700)
|
||||
- PanJit TouchSet USB
|
||||
- 3M MicroTouch USB
|
||||
- 3M MicroTouch USB (EX II series)
|
||||
- ITM
|
||||
- some other eTurboTouch
|
||||
- Gunze AHL61
|
||||
|
||||
Have a look at <http://linux.chapter7.ch/touchkit/> for
|
||||
a usage description and the required user-space stuff.
|
||||
|
|
@ -218,7 +220,7 @@ config USB_TOUCHSCREEN
|
|||
|
||||
config USB_TOUCHSCREEN_EGALAX
|
||||
default y
|
||||
bool "eGalax device support" if EMBEDDED
|
||||
bool "eGalax, eTurboTouch CT-410/510/700 device support" if EMBEDDED
|
||||
depends on USB_TOUCHSCREEN
|
||||
|
||||
config USB_TOUCHSCREEN_PANJIT
|
||||
|
|
@ -228,7 +230,7 @@ config USB_TOUCHSCREEN_PANJIT
|
|||
|
||||
config USB_TOUCHSCREEN_3M
|
||||
default y
|
||||
bool "3M/Microtouch device support" if EMBEDDED
|
||||
bool "3M/Microtouch EX II series device support" if EMBEDDED
|
||||
depends on USB_TOUCHSCREEN
|
||||
|
||||
config USB_TOUCHSCREEN_ITM
|
||||
|
|
@ -236,6 +238,16 @@ config USB_TOUCHSCREEN_ITM
|
|||
bool "ITM device support" if EMBEDDED
|
||||
depends on USB_TOUCHSCREEN
|
||||
|
||||
config USB_TOUCHSCREEN_ETURBO
|
||||
default y
|
||||
bool "eTurboTouch (non-eGalax compatible) device support" if EMBEDDED
|
||||
depends on USB_TOUCHSCREEN
|
||||
|
||||
config USB_TOUCHSCREEN_GUNZE
|
||||
default y
|
||||
bool "Gunze AHL61 device support" if EMBEDDED
|
||||
depends on USB_TOUCHSCREEN
|
||||
|
||||
config USB_YEALINK
|
||||
tristate "Yealink usb-p1k voip phone"
|
||||
depends on USB && INPUT && EXPERIMENTAL
|
||||
|
|
|
|||
|
|
@ -2,9 +2,12 @@
|
|||
* usbtouchscreen.c
|
||||
* Driver for USB Touchscreens, supporting those devices:
|
||||
* - eGalax Touchkit
|
||||
* - 3M/Microtouch
|
||||
* includes eTurboTouch CT-410/510/700
|
||||
* - 3M/Microtouch EX II series
|
||||
* - ITM
|
||||
* - PanJit TouchSet
|
||||
* - eTurboTouch
|
||||
* - Gunze AHL61
|
||||
*
|
||||
* Copyright (C) 2004-2006 by Daniel Ritz <daniel.ritz@gmx.ch>
|
||||
* Copyright (C) by Todd E. Johnson (mtouchusb.c)
|
||||
|
|
@ -42,7 +45,7 @@
|
|||
#include <linux/usb/input.h>
|
||||
|
||||
|
||||
#define DRIVER_VERSION "v0.3"
|
||||
#define DRIVER_VERSION "v0.4"
|
||||
#define DRIVER_AUTHOR "Daniel Ritz <daniel.ritz@gmx.ch>"
|
||||
#define DRIVER_DESC "USB Touchscreen Driver"
|
||||
|
||||
|
|
@ -60,6 +63,7 @@ struct usbtouch_device_info {
|
|||
int flags;
|
||||
|
||||
void (*process_pkt) (struct usbtouch_usb *usbtouch, struct pt_regs *regs, unsigned char *pkt, int len);
|
||||
int (*get_pkt_len) (unsigned char *pkt, int len);
|
||||
int (*read_data) (unsigned char *pkt, int *x, int *y, int *touch, int *press);
|
||||
int (*init) (struct usbtouch_usb *usbtouch);
|
||||
};
|
||||
|
|
@ -81,8 +85,16 @@ struct usbtouch_usb {
|
|||
char phys[64];
|
||||
};
|
||||
|
||||
static void usbtouch_process_pkt(struct usbtouch_usb *usbtouch,
|
||||
struct pt_regs *regs, unsigned char *pkt, int len);
|
||||
|
||||
#if defined(CONFIG_USB_TOUCHSCREEN_EGALAX) || defined(CONFIG_USB_TOUCHSCREEN_ETURBO)
|
||||
#define MULTI_PACKET
|
||||
#endif
|
||||
|
||||
#ifdef MULTI_PACKET
|
||||
static void usbtouch_process_multi(struct usbtouch_usb *usbtouch,
|
||||
struct pt_regs *regs,
|
||||
unsigned char *pkt, int len);
|
||||
#endif
|
||||
|
||||
/* device types */
|
||||
enum {
|
||||
|
|
@ -91,14 +103,19 @@ enum {
|
|||
DEVTYPE_PANJIT,
|
||||
DEVTYPE_3M,
|
||||
DEVTYPE_ITM,
|
||||
DEVTYPE_ETURBO,
|
||||
DEVTYPE_GUNZE,
|
||||
};
|
||||
|
||||
static struct usb_device_id usbtouch_devices[] = {
|
||||
#ifdef CONFIG_USB_TOUCHSCREEN_EGALAX
|
||||
{USB_DEVICE(0x3823, 0x0001), .driver_info = DEVTYPE_EGALAX},
|
||||
{USB_DEVICE(0x3823, 0x0002), .driver_info = DEVTYPE_EGALAX},
|
||||
{USB_DEVICE(0x0123, 0x0001), .driver_info = DEVTYPE_EGALAX},
|
||||
{USB_DEVICE(0x0eef, 0x0001), .driver_info = DEVTYPE_EGALAX},
|
||||
{USB_DEVICE(0x0eef, 0x0002), .driver_info = DEVTYPE_EGALAX},
|
||||
{USB_DEVICE(0x1234, 0x0001), .driver_info = DEVTYPE_EGALAX},
|
||||
{USB_DEVICE(0x1234, 0x0002), .driver_info = DEVTYPE_EGALAX},
|
||||
#endif
|
||||
|
||||
#ifdef CONFIG_USB_TOUCHSCREEN_PANJIT
|
||||
|
|
@ -116,6 +133,14 @@ static struct usb_device_id usbtouch_devices[] = {
|
|||
{USB_DEVICE(0x0403, 0xf9e9), .driver_info = DEVTYPE_ITM},
|
||||
#endif
|
||||
|
||||
#ifdef CONFIG_USB_TOUCHSCREEN_ETURBO
|
||||
{USB_DEVICE(0x1234, 0x5678), .driver_info = DEVTYPE_ETURBO},
|
||||
#endif
|
||||
|
||||
#ifdef CONFIG_USB_TOUCHSCREEN_GUNZE
|
||||
{USB_DEVICE(0x0637, 0x0001), .driver_info = DEVTYPE_GUNZE},
|
||||
#endif
|
||||
|
||||
{}
|
||||
};
|
||||
|
||||
|
|
@ -140,82 +165,23 @@ static int egalax_read_data(unsigned char *pkt, int *x, int *y, int *touch, int
|
|||
*touch = pkt[0] & 0x01;
|
||||
|
||||
return 1;
|
||||
|
||||
}
|
||||
|
||||
static int egalax_get_pkt_len(unsigned char *buf)
|
||||
static int egalax_get_pkt_len(unsigned char *buf, int len)
|
||||
{
|
||||
switch (buf[0] & EGALAX_PKT_TYPE_MASK) {
|
||||
case EGALAX_PKT_TYPE_REPT:
|
||||
return 5;
|
||||
|
||||
case EGALAX_PKT_TYPE_DIAG:
|
||||
if (len < 2)
|
||||
return -1;
|
||||
|
||||
return buf[1] + 2;
|
||||
}
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
static void egalax_process(struct usbtouch_usb *usbtouch, struct pt_regs *regs,
|
||||
unsigned char *pkt, int len)
|
||||
{
|
||||
unsigned char *buffer;
|
||||
int pkt_len, buf_len, pos;
|
||||
|
||||
/* if the buffer contains data, append */
|
||||
if (unlikely(usbtouch->buf_len)) {
|
||||
int tmp;
|
||||
|
||||
/* if only 1 byte in buffer, add another one to get length */
|
||||
if (usbtouch->buf_len == 1)
|
||||
usbtouch->buffer[1] = pkt[0];
|
||||
|
||||
pkt_len = egalax_get_pkt_len(usbtouch->buffer);
|
||||
|
||||
/* unknown packet: drop everything */
|
||||
if (!pkt_len)
|
||||
return;
|
||||
|
||||
/* append, process */
|
||||
tmp = pkt_len - usbtouch->buf_len;
|
||||
memcpy(usbtouch->buffer + usbtouch->buf_len, pkt, tmp);
|
||||
usbtouch_process_pkt(usbtouch, regs, usbtouch->buffer, pkt_len);
|
||||
|
||||
buffer = pkt + tmp;
|
||||
buf_len = len - tmp;
|
||||
} else {
|
||||
buffer = pkt;
|
||||
buf_len = len;
|
||||
}
|
||||
|
||||
/* only one byte left in buffer */
|
||||
if (unlikely(buf_len == 1)) {
|
||||
usbtouch->buffer[0] = buffer[0];
|
||||
usbtouch->buf_len = 1;
|
||||
return;
|
||||
}
|
||||
|
||||
/* loop over the buffer */
|
||||
pos = 0;
|
||||
while (pos < buf_len) {
|
||||
/* get packet len */
|
||||
pkt_len = egalax_get_pkt_len(buffer + pos);
|
||||
|
||||
/* unknown packet: drop everything */
|
||||
if (unlikely(!pkt_len))
|
||||
return;
|
||||
|
||||
/* full packet: process */
|
||||
if (likely(pkt_len <= buf_len)) {
|
||||
usbtouch_process_pkt(usbtouch, regs, buffer + pos, pkt_len);
|
||||
} else {
|
||||
/* incomplete packet: save in buffer */
|
||||
memcpy(usbtouch->buffer, buffer + pos, buf_len - pos);
|
||||
usbtouch->buf_len = buf_len - pos;
|
||||
}
|
||||
pos += pkt_len;
|
||||
}
|
||||
}
|
||||
#endif
|
||||
|
||||
|
||||
|
|
@ -254,7 +220,7 @@ static int mtouch_read_data(unsigned char *pkt, int *x, int *y, int *touch, int
|
|||
|
||||
static int mtouch_init(struct usbtouch_usb *usbtouch)
|
||||
{
|
||||
int ret;
|
||||
int ret, i;
|
||||
|
||||
ret = usb_control_msg(usbtouch->udev, usb_rcvctrlpipe(usbtouch->udev, 0),
|
||||
MTOUCHUSB_RESET,
|
||||
|
|
@ -264,15 +230,20 @@ static int mtouch_init(struct usbtouch_usb *usbtouch)
|
|||
__FUNCTION__, ret);
|
||||
if (ret < 0)
|
||||
return ret;
|
||||
msleep(150);
|
||||
|
||||
ret = usb_control_msg(usbtouch->udev, usb_rcvctrlpipe(usbtouch->udev, 0),
|
||||
MTOUCHUSB_ASYNC_REPORT,
|
||||
USB_DIR_OUT | USB_TYPE_VENDOR | USB_RECIP_DEVICE,
|
||||
1, 1, NULL, 0, USB_CTRL_SET_TIMEOUT);
|
||||
dbg("%s - usb_control_msg - MTOUCHUSB_ASYNC_REPORT - bytes|err: %d",
|
||||
__FUNCTION__, ret);
|
||||
if (ret < 0)
|
||||
return ret;
|
||||
for (i = 0; i < 3; i++) {
|
||||
ret = usb_control_msg(usbtouch->udev, usb_rcvctrlpipe(usbtouch->udev, 0),
|
||||
MTOUCHUSB_ASYNC_REPORT,
|
||||
USB_DIR_OUT | USB_TYPE_VENDOR | USB_RECIP_DEVICE,
|
||||
1, 1, NULL, 0, USB_CTRL_SET_TIMEOUT);
|
||||
dbg("%s - usb_control_msg - MTOUCHUSB_ASYNC_REPORT - bytes|err: %d",
|
||||
__FUNCTION__, ret);
|
||||
if (ret >= 0)
|
||||
break;
|
||||
if (ret != -EPIPE)
|
||||
return ret;
|
||||
}
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
|
@ -295,6 +266,54 @@ static int itm_read_data(unsigned char *pkt, int *x, int *y, int *touch, int *pr
|
|||
#endif
|
||||
|
||||
|
||||
/*****************************************************************************
|
||||
* eTurboTouch part
|
||||
*/
|
||||
#ifdef CONFIG_USB_TOUCHSCREEN_ETURBO
|
||||
static int eturbo_read_data(unsigned char *pkt, int *x, int *y, int *touch, int *press)
|
||||
{
|
||||
unsigned int shift;
|
||||
|
||||
/* packets should start with sync */
|
||||
if (!(pkt[0] & 0x80))
|
||||
return 0;
|
||||
|
||||
shift = (6 - (pkt[0] & 0x03));
|
||||
*x = ((pkt[3] << 7) | pkt[4]) >> shift;
|
||||
*y = ((pkt[1] << 7) | pkt[2]) >> shift;
|
||||
*touch = (pkt[0] & 0x10) ? 1 : 0;
|
||||
|
||||
return 1;
|
||||
}
|
||||
|
||||
static int eturbo_get_pkt_len(unsigned char *buf, int len)
|
||||
{
|
||||
if (buf[0] & 0x80)
|
||||
return 5;
|
||||
if (buf[0] == 0x01)
|
||||
return 3;
|
||||
return 0;
|
||||
}
|
||||
#endif
|
||||
|
||||
|
||||
/*****************************************************************************
|
||||
* Gunze part
|
||||
*/
|
||||
#ifdef CONFIG_USB_TOUCHSCREEN_GUNZE
|
||||
static int gunze_read_data(unsigned char *pkt, int *x, int *y, int *touch, int *press)
|
||||
{
|
||||
if (!(pkt[0] & 0x80) || ((pkt[1] | pkt[2] | pkt[3]) & 0x80))
|
||||
return 0;
|
||||
|
||||
*x = ((pkt[0] & 0x1F) << 7) | (pkt[2] & 0x7F);
|
||||
*y = ((pkt[1] & 0x1F) << 7) | (pkt[3] & 0x7F);
|
||||
*touch = pkt[0] & 0x20;
|
||||
|
||||
return 1;
|
||||
}
|
||||
#endif
|
||||
|
||||
/*****************************************************************************
|
||||
* the different device descriptors
|
||||
*/
|
||||
|
|
@ -307,7 +326,8 @@ static struct usbtouch_device_info usbtouch_dev_info[] = {
|
|||
.max_yc = 0x07ff,
|
||||
.rept_size = 16,
|
||||
.flags = USBTOUCH_FLG_BUFFER,
|
||||
.process_pkt = egalax_process,
|
||||
.process_pkt = usbtouch_process_multi,
|
||||
.get_pkt_len = egalax_get_pkt_len,
|
||||
.read_data = egalax_read_data,
|
||||
},
|
||||
#endif
|
||||
|
|
@ -346,6 +366,31 @@ static struct usbtouch_device_info usbtouch_dev_info[] = {
|
|||
.read_data = itm_read_data,
|
||||
},
|
||||
#endif
|
||||
|
||||
#ifdef CONFIG_USB_TOUCHSCREEN_ETURBO
|
||||
[DEVTYPE_ETURBO] = {
|
||||
.min_xc = 0x0,
|
||||
.max_xc = 0x07ff,
|
||||
.min_yc = 0x0,
|
||||
.max_yc = 0x07ff,
|
||||
.rept_size = 8,
|
||||
.flags = USBTOUCH_FLG_BUFFER,
|
||||
.process_pkt = usbtouch_process_multi,
|
||||
.get_pkt_len = eturbo_get_pkt_len,
|
||||
.read_data = eturbo_read_data,
|
||||
},
|
||||
#endif
|
||||
|
||||
#ifdef CONFIG_USB_TOUCHSCREEN_GUNZE
|
||||
[DEVTYPE_GUNZE] = {
|
||||
.min_xc = 0x0,
|
||||
.max_xc = 0x0fff,
|
||||
.min_yc = 0x0,
|
||||
.max_yc = 0x0fff,
|
||||
.rept_size = 4,
|
||||
.read_data = gunze_read_data,
|
||||
},
|
||||
#endif
|
||||
};
|
||||
|
||||
|
||||
|
|
@ -377,6 +422,83 @@ static void usbtouch_process_pkt(struct usbtouch_usb *usbtouch,
|
|||
}
|
||||
|
||||
|
||||
#ifdef MULTI_PACKET
|
||||
static void usbtouch_process_multi(struct usbtouch_usb *usbtouch,
|
||||
struct pt_regs *regs,
|
||||
unsigned char *pkt, int len)
|
||||
{
|
||||
unsigned char *buffer;
|
||||
int pkt_len, pos, buf_len, tmp;
|
||||
|
||||
/* process buffer */
|
||||
if (unlikely(usbtouch->buf_len)) {
|
||||
/* try to get size */
|
||||
pkt_len = usbtouch->type->get_pkt_len(
|
||||
usbtouch->buffer, usbtouch->buf_len);
|
||||
|
||||
/* drop? */
|
||||
if (unlikely(!pkt_len))
|
||||
goto out_flush_buf;
|
||||
|
||||
/* need to append -pkt_len bytes before able to get size */
|
||||
if (unlikely(pkt_len < 0)) {
|
||||
int append = -pkt_len;
|
||||
if (unlikely(append > len))
|
||||
append = len;
|
||||
if (usbtouch->buf_len + append >= usbtouch->type->rept_size)
|
||||
goto out_flush_buf;
|
||||
memcpy(usbtouch->buffer + usbtouch->buf_len, pkt, append);
|
||||
usbtouch->buf_len += append;
|
||||
|
||||
pkt_len = usbtouch->type->get_pkt_len(
|
||||
usbtouch->buffer, usbtouch->buf_len);
|
||||
if (pkt_len < 0)
|
||||
return;
|
||||
}
|
||||
|
||||
/* append */
|
||||
tmp = pkt_len - usbtouch->buf_len;
|
||||
if (usbtouch->buf_len + tmp >= usbtouch->type->rept_size)
|
||||
goto out_flush_buf;
|
||||
memcpy(usbtouch->buffer + usbtouch->buf_len, pkt, tmp);
|
||||
usbtouch_process_pkt(usbtouch, regs, usbtouch->buffer, pkt_len);
|
||||
|
||||
buffer = pkt + tmp;
|
||||
buf_len = len - tmp;
|
||||
} else {
|
||||
buffer = pkt;
|
||||
buf_len = len;
|
||||
}
|
||||
|
||||
/* loop over the received packet, process */
|
||||
pos = 0;
|
||||
while (pos < buf_len) {
|
||||
/* get packet len */
|
||||
pkt_len = usbtouch->type->get_pkt_len(buffer + pos, len);
|
||||
|
||||
/* unknown packet: drop everything */
|
||||
if (unlikely(!pkt_len))
|
||||
goto out_flush_buf;
|
||||
|
||||
/* full packet: process */
|
||||
if (likely((pkt_len > 0) && (pkt_len <= buf_len - pos))) {
|
||||
usbtouch_process_pkt(usbtouch, regs, buffer + pos, pkt_len);
|
||||
} else {
|
||||
/* incomplete packet: save in buffer */
|
||||
memcpy(usbtouch->buffer, buffer + pos, buf_len - pos);
|
||||
usbtouch->buf_len = buf_len - pos;
|
||||
return;
|
||||
}
|
||||
pos += pkt_len;
|
||||
}
|
||||
|
||||
out_flush_buf:
|
||||
usbtouch->buf_len = 0;
|
||||
return;
|
||||
}
|
||||
#endif
|
||||
|
||||
|
||||
static void usbtouch_irq(struct urb *urb, struct pt_regs *regs)
|
||||
{
|
||||
struct usbtouch_usb *usbtouch = urb->context;
|
||||
|
|
@ -452,7 +574,7 @@ static int usbtouch_probe(struct usb_interface *intf,
|
|||
struct usb_endpoint_descriptor *endpoint;
|
||||
struct usb_device *udev = interface_to_usbdev(intf);
|
||||
struct usbtouch_device_info *type;
|
||||
int err;
|
||||
int err = -ENOMEM;
|
||||
|
||||
interface = intf->cur_altsetting;
|
||||
endpoint = &interface->endpoint[0].desc;
|
||||
|
|
@ -526,6 +648,7 @@ static int usbtouch_probe(struct usb_interface *intf,
|
|||
usbtouch->data, type->rept_size,
|
||||
usbtouch_irq, usbtouch, endpoint->bInterval);
|
||||
|
||||
usbtouch->irq->dev = usbtouch->udev;
|
||||
usbtouch->irq->transfer_dma = usbtouch->data_dma;
|
||||
usbtouch->irq->transfer_flags |= URB_NO_TRANSFER_DMA_MAP;
|
||||
|
||||
|
|
@ -553,7 +676,7 @@ out_free_buffers:
|
|||
out_free:
|
||||
input_free_device(input_dev);
|
||||
kfree(usbtouch);
|
||||
return -ENOMEM;
|
||||
return err;
|
||||
}
|
||||
|
||||
static void usbtouch_disconnect(struct usb_interface *intf)
|
||||
|
|
|
|||
Loading…
Reference in New Issue