// SPDX-License-Identifier: GPL-2.0-or-later /****************************************************************************** * usbtouchscreen.c * Driver for USB Touchscreens, supporting those devices: * - eGalax Touchkit * includes eTurboTouch CT-410/510/700 * - 3M/Microtouch EX II series * - ITM * - PanJit TouchSet * - eTurboTouch * - Gunze AHL61 * - DMC TSC-10/25 * - IRTOUCHSYSTEMS/UNITOP * - IdealTEK URTC1000 * - General Touch * - GoTop Super_Q2/GogoPen/PenPower tablets * - JASTEC USB touch controller/DigiTech DTR-02U * - Zytronic capacitive touchscreen * - NEXIO/iNexio * - Elo TouchSystems 2700 IntelliTouch * - EasyTouch USB Dual/Multi touch controller from Data Modul * * Copyright (C) 2004-2007 by Daniel Ritz <[email protected]> * Copyright (C) by Todd E. Johnson (mtouchusb.c) * * Driver is based on touchkitusb.c * - ITM parts are from itmtouch.c * - 3M parts are from mtouchusb.c * - PanJit parts are from an unmerged driver by Lanslott Gish * - DMC TSC 10/25 are from Holger Schurig, with ideas from an unmerged * driver from Marius Vollmer * *****************************************************************************/ //#define DEBUG #include <linux/kernel.h> #include <linux/slab.h> #include <linux/input.h> #include <linux/module.h> #include <linux/usb.h> #include <linux/usb/input.h> #include <linux/hid.h> #include <linux/mutex.h> static bool swap_xy; module_param(swap_xy, bool, 0644); MODULE_PARM_DESC(…) …; static bool hwcalib_xy; module_param(hwcalib_xy, bool, 0644); MODULE_PARM_DESC(…) …; /* device specifc data/functions */ struct usbtouch_usb; struct usbtouch_device_info { … }; /* a usbtouch device */ struct usbtouch_usb { … }; /***************************************************************************** * e2i Part */ #ifdef CONFIG_TOUCHSCREEN_USB_E2I static int e2i_init(struct usbtouch_usb *usbtouch) { … } static int e2i_read_data(struct usbtouch_usb *dev, unsigned char *pkt) { … } static const struct usbtouch_device_info e2i_dev_info = …; #endif /***************************************************************************** * eGalax part */ #ifdef CONFIG_TOUCHSCREEN_USB_EGALAX #ifndef MULTI_PACKET #define MULTI_PACKET #endif #define EGALAX_PKT_TYPE_MASK … #define EGALAX_PKT_TYPE_REPT … #define EGALAX_PKT_TYPE_DIAG … static int egalax_init(struct usbtouch_usb *usbtouch) { … } static int egalax_read_data(struct usbtouch_usb *dev, unsigned char *pkt) { … } static int egalax_get_pkt_len(unsigned char *buf, int len) { … } static const struct usbtouch_device_info egalax_dev_info = …; #endif /***************************************************************************** * EasyTouch part */ #ifdef CONFIG_TOUCHSCREEN_USB_EASYTOUCH #ifndef MULTI_PACKET #define MULTI_PACKET #endif #define ETOUCH_PKT_TYPE_MASK … #define ETOUCH_PKT_TYPE_REPT … #define ETOUCH_PKT_TYPE_REPT2 … #define ETOUCH_PKT_TYPE_DIAG … static int etouch_read_data(struct usbtouch_usb *dev, unsigned char *pkt) { … } static int etouch_get_pkt_len(unsigned char *buf, int len) { … } static const struct usbtouch_device_info etouch_dev_info = …; #endif /***************************************************************************** * PanJit Part */ #ifdef CONFIG_TOUCHSCREEN_USB_PANJIT static int panjit_read_data(struct usbtouch_usb *dev, unsigned char *pkt) { … } static const struct usbtouch_device_info panjit_dev_info = …; #endif /***************************************************************************** * 3M/Microtouch Part */ #ifdef CONFIG_TOUCHSCREEN_USB_3M #define MTOUCHUSB_ASYNC_REPORT … #define MTOUCHUSB_RESET … #define MTOUCHUSB_REQ_CTRLLR_ID … #define MTOUCHUSB_REQ_CTRLLR_ID_LEN … static int mtouch_read_data(struct usbtouch_usb *dev, unsigned char *pkt) { … } struct mtouch_priv { … }; static int mtouch_get_fw_revision(struct usbtouch_usb *usbtouch) { … } static int mtouch_alloc(struct usbtouch_usb *usbtouch) { … } static int mtouch_init(struct usbtouch_usb *usbtouch) { … } static void mtouch_exit(struct usbtouch_usb *usbtouch) { … } static struct usbtouch_device_info mtouch_dev_info = …; static ssize_t mtouch_firmware_rev_show(struct device *dev, struct device_attribute *attr, char *output) { … } static DEVICE_ATTR(firmware_rev, 0444, mtouch_firmware_rev_show, NULL); static struct attribute *mtouch_attrs[] = …; static bool mtouch_group_visible(struct kobject *kobj) { … } DEFINE_SIMPLE_SYSFS_GROUP_VISIBLE(mtouch); static const struct attribute_group mtouch_attr_group = …; #endif /***************************************************************************** * ITM Part */ #ifdef CONFIG_TOUCHSCREEN_USB_ITM static int itm_read_data(struct usbtouch_usb *dev, unsigned char *pkt) { … } static const struct usbtouch_device_info itm_dev_info = …; #endif /***************************************************************************** * eTurboTouch part */ #ifdef CONFIG_TOUCHSCREEN_USB_ETURBO #ifndef MULTI_PACKET #define MULTI_PACKET #endif static int eturbo_read_data(struct usbtouch_usb *dev, unsigned char *pkt) { … } static int eturbo_get_pkt_len(unsigned char *buf, int len) { … } static const struct usbtouch_device_info eturbo_dev_info = …; #endif /***************************************************************************** * Gunze part */ #ifdef CONFIG_TOUCHSCREEN_USB_GUNZE static int gunze_read_data(struct usbtouch_usb *dev, unsigned char *pkt) { … } static const struct usbtouch_device_info gunze_dev_info = …; #endif /***************************************************************************** * DMC TSC-10/25 Part * * Documentation about the controller and it's protocol can be found at * http://www.dmccoltd.com/files/controler/tsc10usb_pi_e.pdf * http://www.dmccoltd.com/files/controler/tsc25_usb_e.pdf */ #ifdef CONFIG_TOUCHSCREEN_USB_DMC_TSC10 /* supported data rates. currently using 130 */ #define TSC10_RATE_POINT … #define TSC10_RATE_30 … #define TSC10_RATE_50 … #define TSC10_RATE_80 … #define TSC10_RATE_100 … #define TSC10_RATE_130 … #define TSC10_RATE_150 … /* commands */ #define TSC10_CMD_RESET … #define TSC10_CMD_RATE … #define TSC10_CMD_DATA1 … static int dmc_tsc10_init(struct usbtouch_usb *usbtouch) { … } static int dmc_tsc10_read_data(struct usbtouch_usb *dev, unsigned char *pkt) { … } static const struct usbtouch_device_info dmc_tsc10_dev_info = …; #endif /***************************************************************************** * IRTOUCH Part */ #ifdef CONFIG_TOUCHSCREEN_USB_IRTOUCH static int irtouch_read_data(struct usbtouch_usb *dev, unsigned char *pkt) { … } static const struct usbtouch_device_info irtouch_dev_info = …; static const struct usbtouch_device_info irtouch_hires_dev_info = …; #endif /***************************************************************************** * ET&T TC5UH/TC4UM part */ #ifdef CONFIG_TOUCHSCREEN_USB_ETT_TC45USB static int tc45usb_read_data(struct usbtouch_usb *dev, unsigned char *pkt) { … } static const struct usbtouch_device_info tc45usb_dev_info = …; #endif /***************************************************************************** * IdealTEK URTC1000 Part */ #ifdef CONFIG_TOUCHSCREEN_USB_IDEALTEK #ifndef MULTI_PACKET #define MULTI_PACKET #endif static int idealtek_get_pkt_len(unsigned char *buf, int len) { … } static int idealtek_read_data(struct usbtouch_usb *dev, unsigned char *pkt) { … } static const struct usbtouch_device_info idealtek_dev_info = …; #endif /***************************************************************************** * General Touch Part */ #ifdef CONFIG_TOUCHSCREEN_USB_GENERAL_TOUCH static int general_touch_read_data(struct usbtouch_usb *dev, unsigned char *pkt) { … } static const struct usbtouch_device_info general_touch_dev_info = …; #endif /***************************************************************************** * GoTop Part */ #ifdef CONFIG_TOUCHSCREEN_USB_GOTOP static int gotop_read_data(struct usbtouch_usb *dev, unsigned char *pkt) { … } static const struct usbtouch_device_info gotop_dev_info = …; #endif /***************************************************************************** * JASTEC Part */ #ifdef CONFIG_TOUCHSCREEN_USB_JASTEC static int jastec_read_data(struct usbtouch_usb *dev, unsigned char *pkt) { … } static const struct usbtouch_device_info jastec_dev_info = …; #endif /***************************************************************************** * Zytronic Part */ #ifdef CONFIG_TOUCHSCREEN_USB_ZYTRONIC static int zytronic_read_data(struct usbtouch_usb *dev, unsigned char *pkt) { … } static const struct usbtouch_device_info zytronic_dev_info = …; #endif /***************************************************************************** * NEXIO Part */ #ifdef CONFIG_TOUCHSCREEN_USB_NEXIO #define NEXIO_TIMEOUT … #define NEXIO_BUFSIZE … #define NEXIO_THRESHOLD … struct nexio_priv { … }; struct nexio_touch_packet { … } __attribute__ ((packed)); static unsigned char nexio_ack_pkt[2] = …; static unsigned char nexio_init_pkt[4] = …; static void nexio_ack_complete(struct urb *urb) { … } static int nexio_alloc(struct usbtouch_usb *usbtouch) { … } static int nexio_init(struct usbtouch_usb *usbtouch) { … } static void nexio_exit(struct usbtouch_usb *usbtouch) { … } static int nexio_read_data(struct usbtouch_usb *usbtouch, unsigned char *pkt) { … } static const struct usbtouch_device_info nexio_dev_info = …; #endif /***************************************************************************** * ELO part */ #ifdef CONFIG_TOUCHSCREEN_USB_ELO static int elo_read_data(struct usbtouch_usb *dev, unsigned char *pkt) { … } static const struct usbtouch_device_info elo_dev_info = …; #endif /***************************************************************************** * Generic Part */ static void usbtouch_process_pkt(struct usbtouch_usb *usbtouch, unsigned char *pkt, int len) { … } #ifdef MULTI_PACKET static void usbtouch_process_multi(struct usbtouch_usb *usbtouch, unsigned char *pkt, int len) { … } #else static void usbtouch_process_multi(struct usbtouch_usb *usbtouch, unsigned char *pkt, int len) { dev_WARN_ONCE(&usbtouch->interface->dev, 1, "Protocol has ->get_pkt_len() without #define MULTI_PACKET"); } #endif static void usbtouch_irq(struct urb *urb) { … } static int usbtouch_start_io(struct usbtouch_usb *usbtouch) { … } static int usbtouch_open(struct input_dev *input) { … } static void usbtouch_close(struct input_dev *input) { … } static int usbtouch_suspend(struct usb_interface *intf, pm_message_t message) { … } static int usbtouch_resume(struct usb_interface *intf) { … } static int usbtouch_reset_resume(struct usb_interface *intf) { … } static void usbtouch_free_buffers(struct usb_device *udev, struct usbtouch_usb *usbtouch) { … } static struct usb_endpoint_descriptor * usbtouch_get_input_endpoint(struct usb_host_interface *interface) { … } static int usbtouch_probe(struct usb_interface *intf, const struct usb_device_id *id) { … } static void usbtouch_disconnect(struct usb_interface *intf) { … } static const struct attribute_group *usbtouch_groups[] = …; static const struct usb_device_id usbtouch_devices[] = …; MODULE_DEVICE_TABLE(usb, usbtouch_devices); static struct usb_driver usbtouch_driver = …; module_usb_driver(…) …; MODULE_AUTHOR(…) …; MODULE_DESCRIPTION(…) …; MODULE_LICENSE(…) …; MODULE_ALIAS(…) …; MODULE_ALIAS(…) …; MODULE_ALIAS(…) …;
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