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