diff options
Diffstat (limited to 'drivers/input/touchscreen/usbtouchscreen.c')
| -rw-r--r-- | drivers/input/touchscreen/usbtouchscreen.c | 908 |
1 files changed, 831 insertions, 77 deletions
diff --git a/drivers/input/touchscreen/usbtouchscreen.c b/drivers/input/touchscreen/usbtouchscreen.c index 63f9664a066..a0966331a89 100644 --- a/drivers/input/touchscreen/usbtouchscreen.c +++ b/drivers/input/touchscreen/usbtouchscreen.c @@ -13,6 +13,11 @@ * - 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 <daniel.ritz@gmx.ch> * Copyright (C) by Todd E. Johnson (mtouchusb.c) @@ -46,19 +51,23 @@ #include <linux/slab.h> #include <linux/input.h> #include <linux/module.h> -#include <linux/init.h> #include <linux/usb.h> #include <linux/usb/input.h> +#include <linux/hid.h> #define DRIVER_VERSION "v0.6" #define DRIVER_AUTHOR "Daniel Ritz <daniel.ritz@gmx.ch>" #define DRIVER_DESC "USB Touchscreen Driver" -static int swap_xy; +static bool swap_xy; module_param(swap_xy, bool, 0644); MODULE_PARM_DESC(swap_xy, "If set X and Y axes are swapped."); +static bool hwcalib_xy; +module_param(hwcalib_xy, bool, 0644); +MODULE_PARM_DESC(hwcalib_xy, "If set hw-calibrated X/Y are used if available"); + /* device specifc data/functions */ struct usbtouch_usb; struct usbtouch_device_info { @@ -67,6 +76,15 @@ struct usbtouch_device_info { int min_press, max_press; int rept_size; + /* + * Always service the USB devices irq not just when the input device is + * open. This is useful when devices have a watchdog which prevents us + * from periodically polling the device. Leave this unset unless your + * touchscreen device requires it, as it does consume more of the USB + * bandwidth. + */ + bool irq_always; + void (*process_pkt) (struct usbtouch_usb *usbtouch, unsigned char *pkt, int len); /* @@ -78,21 +96,25 @@ struct usbtouch_device_info { int (*get_pkt_len) (unsigned char *pkt, int len); int (*read_data) (struct usbtouch_usb *usbtouch, unsigned char *pkt); + int (*alloc) (struct usbtouch_usb *usbtouch); int (*init) (struct usbtouch_usb *usbtouch); + void (*exit) (struct usbtouch_usb *usbtouch); }; /* a usbtouch device */ struct usbtouch_usb { unsigned char *data; dma_addr_t data_dma; + int data_size; unsigned char *buffer; int buf_len; struct urb *irq; - struct usb_device *udev; + struct usb_interface *interface; struct input_dev *input; struct usbtouch_device_info *type; char name[128]; char phys[64]; + void *priv; int x, y; int touch, press; @@ -101,7 +123,7 @@ struct usbtouch_usb { /* device types */ enum { - DEVTPYE_DUMMY = -1, + DEVTYPE_IGNORE = -1, DEVTYPE_EGALAX, DEVTYPE_PANJIT, DEVTYPE_3M, @@ -113,10 +135,29 @@ enum { DEVTYPE_IDEALTEK, DEVTYPE_GENERAL_TOUCH, DEVTYPE_GOTOP, + DEVTYPE_JASTEC, + DEVTYPE_E2I, + DEVTYPE_ZYTRONIC, + DEVTYPE_TC45USB, + DEVTYPE_NEXIO, + DEVTYPE_ELO, + DEVTYPE_ETOUCH, }; -static struct usb_device_id usbtouch_devices[] = { +#define USB_DEVICE_HID_CLASS(vend, prod) \ + .match_flags = USB_DEVICE_ID_MATCH_INT_CLASS \ + | USB_DEVICE_ID_MATCH_DEVICE, \ + .idVendor = (vend), \ + .idProduct = (prod), \ + .bInterfaceClass = USB_INTERFACE_CLASS_HID + +static const struct usb_device_id usbtouch_devices[] = { #ifdef CONFIG_TOUCHSCREEN_USB_EGALAX + /* ignore the HID capable devices, handled by usbhid */ + {USB_DEVICE_HID_CLASS(0x0eef, 0x0001), .driver_info = DEVTYPE_IGNORE}, + {USB_DEVICE_HID_CLASS(0x0eef, 0x0002), .driver_info = DEVTYPE_IGNORE}, + + /* normal device IDs */ {USB_DEVICE(0x3823, 0x0001), .driver_info = DEVTYPE_EGALAX}, {USB_DEVICE(0x3823, 0x0002), .driver_info = DEVTYPE_EGALAX}, {USB_DEVICE(0x0123, 0x0001), .driver_info = DEVTYPE_EGALAX}, @@ -139,6 +180,7 @@ static struct usb_device_id usbtouch_devices[] = { #ifdef CONFIG_TOUCHSCREEN_USB_ITM {USB_DEVICE(0x0403, 0xf9e9), .driver_info = DEVTYPE_ITM}, + {USB_DEVICE(0x16e3, 0xf9e9), .driver_info = DEVTYPE_ITM}, #endif #ifdef CONFIG_TOUCHSCREEN_USB_ETURBO @@ -172,11 +214,81 @@ static struct usb_device_id usbtouch_devices[] = { {USB_DEVICE(0x08f2, 0x00f4), .driver_info = DEVTYPE_GOTOP}, #endif +#ifdef CONFIG_TOUCHSCREEN_USB_JASTEC + {USB_DEVICE(0x0f92, 0x0001), .driver_info = DEVTYPE_JASTEC}, +#endif + +#ifdef CONFIG_TOUCHSCREEN_USB_E2I + {USB_DEVICE(0x1ac7, 0x0001), .driver_info = DEVTYPE_E2I}, +#endif + +#ifdef CONFIG_TOUCHSCREEN_USB_ZYTRONIC + {USB_DEVICE(0x14c8, 0x0003), .driver_info = DEVTYPE_ZYTRONIC}, +#endif + +#ifdef CONFIG_TOUCHSCREEN_USB_ETT_TC45USB + /* TC5UH */ + {USB_DEVICE(0x0664, 0x0309), .driver_info = DEVTYPE_TC45USB}, + /* TC4UM */ + {USB_DEVICE(0x0664, 0x0306), .driver_info = DEVTYPE_TC45USB}, +#endif + +#ifdef CONFIG_TOUCHSCREEN_USB_NEXIO + /* data interface only */ + {USB_DEVICE_AND_INTERFACE_INFO(0x10f0, 0x2002, 0x0a, 0x00, 0x00), + .driver_info = DEVTYPE_NEXIO}, + {USB_DEVICE_AND_INTERFACE_INFO(0x1870, 0x0001, 0x0a, 0x00, 0x00), + .driver_info = DEVTYPE_NEXIO}, +#endif + +#ifdef CONFIG_TOUCHSCREEN_USB_ELO + {USB_DEVICE(0x04e7, 0x0020), .driver_info = DEVTYPE_ELO}, +#endif + +#ifdef CONFIG_TOUCHSCREEN_USB_EASYTOUCH + {USB_DEVICE(0x7374, 0x0001), .driver_info = DEVTYPE_ETOUCH}, +#endif + {} }; /***************************************************************************** + * e2i Part + */ + +#ifdef CONFIG_TOUCHSCREEN_USB_E2I +static int e2i_init(struct usbtouch_usb *usbtouch) +{ + int ret; + struct usb_device *udev = interface_to_usbdev(usbtouch->interface); + + ret = usb_control_msg(udev, usb_rcvctrlpipe(udev, 0), + 0x01, 0x02, 0x0000, 0x0081, + NULL, 0, USB_CTRL_SET_TIMEOUT); + + dev_dbg(&usbtouch->interface->dev, + "%s - usb_control_msg - E2I_RESET - bytes|err: %d\n", + __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 */ @@ -190,6 +302,45 @@ static struct usb_device_id usbtouch_devices[] = { #define EGALAX_PKT_TYPE_REPT 0x80 #define EGALAX_PKT_TYPE_DIAG 0x0A +static int egalax_init(struct usbtouch_usb *usbtouch) +{ + int ret, i; + unsigned char *buf; + struct usb_device *udev = interface_to_usbdev(usbtouch->interface); + + /* + * An eGalax diagnostic packet kicks the device into using the right + * protocol. We send a "check active" packet. The response will be + * read later and ignored. + */ + + buf = kmalloc(3, GFP_KERNEL); + if (!buf) + return -ENOMEM; + + buf[0] = EGALAX_PKT_TYPE_DIAG; + buf[1] = 1; /* length */ + buf[2] = 'A'; /* command - check active */ + + for (i = 0; i < 3; i++) { + ret = usb_control_msg(udev, usb_sndctrlpipe(udev, 0), + 0, + USB_DIR_OUT | USB_TYPE_VENDOR | USB_RECIP_DEVICE, + 0, 0, buf, 3, + USB_CTRL_SET_TIMEOUT); + if (ret >= 0) { + ret = 0; + break; + } + if (ret != -EPIPE) + break; + } + + kfree(buf); + + return ret; +} + static int egalax_read_data(struct usbtouch_usb *dev, unsigned char *pkt) { if ((pkt[0] & EGALAX_PKT_TYPE_MASK) != EGALAX_PKT_TYPE_REPT) @@ -219,6 +370,51 @@ static int egalax_get_pkt_len(unsigned char *buf, int len) } #endif +/***************************************************************************** + * EasyTouch part + */ + +#ifdef CONFIG_TOUCHSCREEN_USB_EASYTOUCH + +#ifndef MULTI_PACKET +#define MULTI_PACKET +#endif + +#define ETOUCH_PKT_TYPE_MASK 0xFE +#define ETOUCH_PKT_TYPE_REPT 0x80 +#define ETOUCH_PKT_TYPE_REPT2 0xB0 +#define ETOUCH_PKT_TYPE_DIAG 0x0A + +static int etouch_read_data(struct usbtouch_usb *dev, unsigned char *pkt) +{ + if ((pkt[0] & ETOUCH_PKT_TYPE_MASK) != ETOUCH_PKT_TYPE_REPT && + (pkt[0] & ETOUCH_PKT_TYPE_MASK) != ETOUCH_PKT_TYPE_REPT2) + return 0; + + dev->x = ((pkt[1] & 0x1F) << 7) | (pkt[2] & 0x7F); + dev->y = ((pkt[3] & 0x1F) << 7) | (pkt[4] & 0x7F); + dev->touch = pkt[0] & 0x01; + + return 1; +} + +static int etouch_get_pkt_len(unsigned char *buf, int len) +{ + switch (buf[0] & ETOUCH_PKT_TYPE_MASK) { + case ETOUCH_PKT_TYPE_REPT: + case ETOUCH_PKT_TYPE_REPT2: + return 5; + + case ETOUCH_PKT_TYPE_DIAG: + if (len < 2) + return -1; + + return buf[1] + 2; + } + + return 0; +} +#endif /***************************************************************************** * PanJit Part @@ -246,8 +442,13 @@ static int panjit_read_data(struct usbtouch_usb *dev, unsigned char *pkt) static int mtouch_read_data(struct usbtouch_usb *dev, unsigned char *pkt) { - dev->x = (pkt[8] << 8) | pkt[7]; - dev->y = (pkt[10] << 8) | pkt[9]; + if (hwcalib_xy) { + dev->x = (pkt[4] << 8) | pkt[3]; + dev->y = 0xffff - ((pkt[6] << 8) | pkt[5]); + } else { + dev->x = (pkt[8] << 8) | pkt[7]; + dev->y = (pkt[10] << 8) | pkt[9]; + } dev->touch = (pkt[2] & 0x40) ? 1 : 0; return 1; @@ -256,30 +457,39 @@ static int mtouch_read_data(struct usbtouch_usb *dev, unsigned char *pkt) static int mtouch_init(struct usbtouch_usb *usbtouch) { int ret, i; + struct usb_device *udev = interface_to_usbdev(usbtouch->interface); - ret = usb_control_msg(usbtouch->udev, usb_rcvctrlpipe(usbtouch->udev, 0), + ret = usb_control_msg(udev, usb_rcvctrlpipe(udev, 0), MTOUCHUSB_RESET, USB_DIR_OUT | USB_TYPE_VENDOR | USB_RECIP_DEVICE, 1, 0, NULL, 0, USB_CTRL_SET_TIMEOUT); - dbg("%s - usb_control_msg - MTOUCHUSB_RESET - bytes|err: %d", - __FUNCTION__, ret); + dev_dbg(&usbtouch->interface->dev, + "%s - usb_control_msg - MTOUCHUSB_RESET - bytes|err: %d\n", + __func__, ret); if (ret < 0) return ret; msleep(150); for (i = 0; i < 3; i++) { - ret = usb_control_msg(usbtouch->udev, usb_rcvctrlpipe(usbtouch->udev, 0), + ret = usb_control_msg(udev, usb_rcvctrlpipe(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); + dev_dbg(&usbtouch->interface->dev, + "%s - usb_control_msg - MTOUCHUSB_ASYNC_REPORT - bytes|err: %d\n", + __func__, ret); if (ret >= 0) break; if (ret != -EPIPE) return ret; } + /* Default min/max xy are the raw values, override if using hw-calib */ + if (hwcalib_xy) { + input_set_abs_params(usbtouch->input, ABS_X, 0, 0xffff, 0, 0); + input_set_abs_params(usbtouch->input, ABS_Y, 0, 0xffff, 0, 0); + } + return 0; } #endif @@ -395,10 +605,13 @@ static int gunze_read_data(struct usbtouch_usb *dev, unsigned char *pkt) static int dmc_tsc10_init(struct usbtouch_usb *usbtouch) { - struct usb_device *dev = usbtouch->udev; - int ret; - unsigned char buf[2]; + struct usb_device *dev = interface_to_usbdev(usbtouch->interface); + int ret = -ENOMEM; + unsigned char *buf; + buf = kmalloc(2, GFP_NOIO); + if (!buf) + goto err_nobuf; /* reset */ buf[0] = buf[1] = 0xFF; ret = usb_control_msg(dev, usb_rcvctrlpipe (dev, 0), @@ -406,9 +619,11 @@ static int dmc_tsc10_init(struct usbtouch_usb *usbtouch) USB_DIR_IN | USB_TYPE_VENDOR | USB_RECIP_DEVICE, 0, 0, buf, 2, USB_CTRL_SET_TIMEOUT); if (ret < 0) - return ret; - if (buf[0] != 0x06 || buf[1] != 0x00) - return -ENODEV; + goto err_out; + if (buf[0] != 0x06) { + ret = -ENODEV; + goto err_out; + } /* set coordinate output rate */ buf[0] = buf[1] = 0xFF; @@ -417,20 +632,21 @@ static int dmc_tsc10_init(struct usbtouch_usb *usbtouch) USB_DIR_IN | USB_TYPE_VENDOR | USB_RECIP_DEVICE, TSC10_RATE_150, 0, buf, 2, USB_CTRL_SET_TIMEOUT); if (ret < 0) - return ret; - if ((buf[0] != 0x06 || buf[1] != 0x00) && - (buf[0] != 0x15 || buf[1] != 0x01)) - return -ENODEV; + goto err_out; + if ((buf[0] != 0x06) && (buf[0] != 0x15 || buf[1] != 0x01)) { + ret = -ENODEV; + goto err_out; + } /* start sending data */ ret = usb_control_msg(dev, usb_rcvctrlpipe (dev, 0), TSC10_CMD_DATA1, USB_DIR_OUT | USB_TYPE_VENDOR | USB_RECIP_DEVICE, 0, 0, NULL, 0, USB_CTRL_SET_TIMEOUT); - if (ret < 0) - return ret; - - return 0; +err_out: + kfree(buf); +err_nobuf: + return ret; } @@ -459,6 +675,19 @@ static int irtouch_read_data(struct usbtouch_usb *dev, unsigned char *pkt) } #endif +/***************************************************************************** + * ET&T TC5UH/TC4UM part + */ +#ifdef CONFIG_TOUCHSCREEN_USB_ETT_TC45USB +static int tc45usb_read_data(struct usbtouch_usb *dev, unsigned char *pkt) +{ + dev->x = ((pkt[2] & 0x0F) << 8) | pkt[1]; + dev->y = ((pkt[4] & 0x0F) << 8) | pkt[3]; + dev->touch = pkt[0] & 0x01; + + return 1; +} +#endif /***************************************************************************** * IdealTEK URTC1000 Part @@ -505,8 +734,8 @@ static int idealtek_read_data(struct usbtouch_usb *dev, unsigned char *pkt) #ifdef CONFIG_TOUCHSCREEN_USB_GENERAL_TOUCH static int general_touch_read_data(struct usbtouch_usb *dev, unsigned char *pkt) { - dev->x = ((pkt[2] & 0x0F) << 8) | pkt[1] ; - dev->y = ((pkt[4] & 0x0F) << 8) | pkt[3] ; + dev->x = (pkt[2] << 8) | pkt[1]; + dev->y = (pkt[4] << 8) | pkt[3]; dev->press = pkt[5] & 0xff; dev->touch = pkt[0] & 0x01; @@ -523,6 +752,311 @@ static int gotop_read_data(struct usbtouch_usb *dev, unsigned char *pkt) dev->x = ((pkt[1] & 0x38) << 4) | pkt[2]; dev->y = ((pkt[1] & 0x07) << 7) | pkt[3]; dev->touch = pkt[0] & 0x01; + + return 1; +} +#endif + +/***************************************************************************** + * JASTEC Part + */ +#ifdef CONFIG_TOUCHSCREEN_USB_JASTEC +static int jastec_read_data(struct usbtouch_usb *dev, unsigned char *pkt) +{ + dev->x = ((pkt[0] & 0x3f) << 6) | (pkt[2] & 0x3f); + dev->y = ((pkt[1] & 0x3f) << 6) | (pkt[3] & 0x3f); + dev->touch = (pkt[0] & 0x40) >> 6; + + return 1; +} +#endif + +/***************************************************************************** + * Zytronic Part + */ +#ifdef CONFIG_TOUCHSCREEN_USB_ZYTRONIC +static int zytronic_read_data(struct usbtouch_usb *dev, unsigned char *pkt) +{ + struct usb_interface *intf = dev->interface; + + switch (pkt[0]) { + case 0x3A: /* command response */ + dev_dbg(&intf->dev, "%s: Command response %d\n", __func__, pkt[1]); + break; + + case 0xC0: /* down */ + dev->x = (pkt[1] & 0x7f) | ((pkt[2] & 0x07) << 7); + dev->y = (pkt[3] & 0x7f) | ((pkt[4] & 0x07) << 7); + dev->touch = 1; + dev_dbg(&intf->dev, "%s: down %d,%d\n", __func__, dev->x, dev->y); + return 1; + + case 0x80: /* up */ + dev->x = (pkt[1] & 0x7f) | ((pkt[2] & 0x07) << 7); + dev->y = (pkt[3] & 0x7f) | ((pkt[4] & 0x07) << 7); + dev->touch = 0; + dev_dbg(&intf->dev, "%s: up %d,%d\n", __func__, dev->x, dev->y); + return 1; + + default: + dev_dbg(&intf->dev, "%s: Unknown return %d\n", __func__, pkt[0]); + break; + } + + return 0; +} +#endif + +/***************************************************************************** + * NEXIO Part + */ +#ifdef CONFIG_TOUCHSCREEN_USB_NEXIO + +#define NEXIO_TIMEOUT 5000 +#define NEXIO_BUFSIZE 1024 +#define NEXIO_THRESHOLD 50 + +struct nexio_priv { + struct urb *ack; + unsigned char *ack_buf; +}; + +struct nexio_touch_packet { + u8 flags; /* 0xe1 = touch, 0xe1 = release */ + __be16 data_len; /* total bytes of touch data */ + __be16 x_len; /* bytes for X axis */ + __be16 y_len; /* bytes for Y axis */ + u8 data[]; +} __attribute__ ((packed)); + +static unsigned char nexio_ack_pkt[2] = { 0xaa, 0x02 }; +static unsigned char nexio_init_pkt[4] = { 0x82, 0x04, 0x0a, 0x0f }; + +static void nexio_ack_complete(struct urb *urb) +{ +} + +static int nexio_alloc(struct usbtouch_usb *usbtouch) +{ + struct nexio_priv *priv; + int ret = -ENOMEM; + + usbtouch->priv = kmalloc(sizeof(struct nexio_priv), GFP_KERNEL); + if (!usbtouch->priv) + goto out_buf; + + priv = usbtouch->priv; + + priv->ack_buf = kmemdup(nexio_ack_pkt, sizeof(nexio_ack_pkt), + GFP_KERNEL); + if (!priv->ack_buf) + goto err_priv; + + priv->ack = usb_alloc_urb(0, GFP_KERNEL); + if (!priv->ack) { + dev_dbg(&usbtouch->interface->dev, + "%s - usb_alloc_urb failed: usbtouch->ack\n", __func__); + goto err_ack_buf; + } + + return 0; + +err_ack_buf: + kfree(priv->ack_buf); +err_priv: + kfree(priv); +out_buf: + return ret; +} + +static int nexio_init(struct usbtouch_usb *usbtouch) +{ + struct usb_device *dev = interface_to_usbdev(usbtouch->interface); + struct usb_host_interface *interface = usbtouch->interface->cur_altsetting; + struct nexio_priv *priv = usbtouch->priv; + int ret = -ENOMEM; + int actual_len, i; + unsigned char *buf; + char *firmware_ver = NULL, *device_name = NULL; + int input_ep = 0, output_ep = 0; + + /* find first input and output endpoint */ + for (i = 0; i < interface->desc.bNumEndpoints; i++) { + if (!input_ep && + usb_endpoint_dir_in(&interface->endpoint[i].desc)) + input_ep = interface->endpoint[i].desc.bEndpointAddress; + if (!output_ep && + usb_endpoint_dir_out(&interface->endpoint[i].desc)) + output_ep = interface->endpoint[i].desc.bEndpointAddress; + } + if (!input_ep || !output_ep) + return -ENXIO; + + buf = kmalloc(NEXIO_BUFSIZE, GFP_NOIO); + if (!buf) + goto out_buf; + + /* two empty reads */ + for (i = 0; i < 2; i++) { + ret = usb_bulk_msg(dev, usb_rcvbulkpipe(dev, input_ep), + buf, NEXIO_BUFSIZE, &actual_len, + NEXIO_TIMEOUT); + if (ret < 0) + goto out_buf; + } + + /* send init command */ + memcpy(buf, nexio_init_pkt, sizeof(nexio_init_pkt)); + ret = usb_bulk_msg(dev, usb_sndbulkpipe(dev, output_ep), + buf, sizeof(nexio_init_pkt), &actual_len, + NEXIO_TIMEOUT); + if (ret < 0) + goto out_buf; + + /* read replies */ + for (i = 0; i < 3; i++) { + memset(buf, 0, NEXIO_BUFSIZE); + ret = usb_bulk_msg(dev, usb_rcvbulkpipe(dev, input_ep), + buf, NEXIO_BUFSIZE, &actual_len, + NEXIO_TIMEOUT); + if (ret < 0 || actual_len < 1 || buf[1] != actual_len) + continue; + switch (buf[0]) { + case 0x83: /* firmware version */ + if (!firmware_ver) + firmware_ver = kstrdup(&buf[2], GFP_NOIO); + break; + case 0x84: /* device name */ + if (!device_name) + device_name = kstrdup(&buf[2], GFP_NOIO); + break; + } + } + + printk(KERN_INFO "Nexio device: %s, firmware version: %s\n", + device_name, firmware_ver); + + kfree(firmware_ver); + kfree(device_name); + + usb_fill_bulk_urb(priv->ack, dev, usb_sndbulkpipe(dev, output_ep), + priv->ack_buf, sizeof(nexio_ack_pkt), + nexio_ack_complete, usbtouch); + ret = 0; + +out_buf: + kfree(buf); + return ret; +} + +static void nexio_exit(struct usbtouch_usb *usbtouch) +{ + struct nexio_priv *priv = usbtouch->priv; + + usb_kill_urb(priv->ack); + usb_free_urb(priv->ack); + kfree(priv->ack_buf); + kfree(priv); +} + +static int nexio_read_data(struct usbtouch_usb *usbtouch, unsigned char *pkt) +{ + struct nexio_touch_packet *packet = (void *) pkt; + struct nexio_priv *priv = usbtouch->priv; + unsigned int data_len = be16_to_cpu(packet->data_len); + unsigned int x_len = be16_to_cpu(packet->x_len); + unsigned int y_len = be16_to_cpu(packet->y_len); + int x, y, begin_x, begin_y, end_x, end_y, w, h, ret; + + /* got touch data? */ + if ((pkt[0] & 0xe0) != 0xe0) + return 0; + + if (data_len > 0xff) + data_len -= 0x100; + if (x_len > 0xff) + x_len -= 0x80; + + /* send ACK */ + ret = usb_submit_urb(priv->ack, GFP_ATOMIC); + + if (!usbtouch->type->max_xc) { + usbtouch->type->max_xc = 2 * x_len; + input_set_abs_params(usbtouch->input, ABS_X, + 0, usbtouch->type->max_xc, 0, 0); + usbtouch->type->max_yc = 2 * y_len; + input_set_abs_params(usbtouch->input, ABS_Y, + 0, usbtouch->type->max_yc, 0, 0); + } + /* + * The device reports state of IR sensors on X and Y axes. + * Each byte represents "darkness" percentage (0-100) of one element. + * 17" touchscreen reports only 64 x 52 bytes so the resolution is low. + * This also means that there's a limited multi-touch capability but + * it's disabled (and untested) here as there's no X driver for that. + */ + begin_x = end_x = begin_y = end_y = -1; + for (x = 0; x < x_len; x++) { + if (begin_x == -1 && packet->data[x] > NEXIO_THRESHOLD) { + begin_x = x; + continue; + } + if (end_x == -1 && begin_x != -1 && packet->data[x] < NEXIO_THRESHOLD) { + end_x = x - 1; + for (y = x_len; y < data_len; y++) { + if (begin_y == -1 && packet->data[y] > NEXIO_THRESHOLD) { + begin_y = y - x_len; + continue; + } + if (end_y == -1 && + begin_y != -1 && packet->data[y] < NEXIO_THRESHOLD) { + end_y = y - 1 - x_len; + w = end_x - begin_x; + h = end_y - begin_y; +#if 0 + /* multi-touch */ + input_report_abs(usbtouch->input, + ABS_MT_TOUCH_MAJOR, max(w,h)); + input_report_abs(usbtouch->input, + ABS_MT_TOUCH_MINOR, min(x,h)); + input_report_abs(usbtouch->input, + ABS_MT_POSITION_X, 2*begin_x+w); + input_report_abs(usbtouch->input, + ABS_MT_POSITION_Y, 2*begin_y+h); + input_report_abs(usbtouch->input, + ABS_MT_ORIENTATION, w > h); + input_mt_sync(usbtouch->input); +#endif + /* single touch */ + usbtouch->x = 2 * begin_x + w; + usbtouch->y = 2 * begin_y + h; + usbtouch->touch = packet->flags & 0x01; + begin_y = end_y = -1; + return 1; + } + } + begin_x = end_x = -1; + } + + } + return 0; +} +#endif + + +/***************************************************************************** + * ELO part + */ + +#ifdef CONFIG_TOUCHSCREEN_USB_ELO + +static int elo_read_data(struct usbtouch_usb *dev, unsigned char *pkt) +{ + dev->x = (pkt[3] << 8) | pkt[2]; + dev->y = (pkt[5] << 8) | pkt[4]; + dev->touch = pkt[6] > 0; + dev->press = pkt[6]; + return 1; } #endif @@ -537,6 +1071,18 @@ static void usbtouch_process_multi(struct usbtouch_usb *usbtouch, #endif static struct usbtouch_device_info usbtouch_dev_info[] = { +#ifdef CONFIG_TOUCHSCREEN_USB_ELO + [DEVTYPE_ELO] = { + .min_xc = 0x0, + .max_xc = 0x0fff, + .min_yc = 0x0, + .max_yc = 0x0fff, + .max_press = 0xff, + .rept_size = 8, + .read_data = elo_read_data, + }, +#endif + #ifdef CONFIG_TOUCHSCREEN_USB_EGALAX [DEVTYPE_EGALAX] = { .min_xc = 0x0, @@ -547,6 +1093,7 @@ static struct usbtouch_device_info usbtouch_dev_info[] = { .process_pkt = usbtouch_process_multi, .get_pkt_len = egalax_get_pkt_len, .read_data = egalax_read_data, + .init = egalax_init, }, #endif @@ -648,9 +1195,9 @@ static struct usbtouch_device_info usbtouch_dev_info[] = { #ifdef CONFIG_TOUCHSCREEN_USB_GENERAL_TOUCH [DEVTYPE_GENERAL_TOUCH] = { .min_xc = 0x0, - .max_xc = 0x0500, + .max_xc = 0x7fff, .min_yc = 0x0, - .max_yc = 0x0500, + .max_yc = 0x7fff, .rept_size = 7, .read_data = general_touch_read_data, }, @@ -666,6 +1213,75 @@ static struct usbtouch_device_info usbtouch_dev_info[] = { .read_data = gotop_read_data, }, #endif + +#ifdef CONFIG_TOUCHSCREEN_USB_JASTEC + [DEVTYPE_JASTEC] = { + .min_xc = 0x0, + .max_xc = 0x0fff, + .min_yc = 0x0, + .max_yc = 0x0fff, + .rept_size = 4, + .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 + +#ifdef CONFIG_TOUCHSCREEN_USB_ZYTRONIC + [DEVTYPE_ZYTRONIC] = { + .min_xc = 0x0, + .max_xc = 0x03ff, + .min_yc = 0x0, + .max_yc = 0x03ff, + .rept_size = 5, + .read_data = zytronic_read_data, + .irq_always = true, + }, +#endif + +#ifdef CONFIG_TOUCHSCREEN_USB_ETT_TC45USB + [DEVTYPE_TC45USB] = { + .min_xc = 0x0, + .max_xc = 0x0fff, + .min_yc = 0x0, + .max_yc = 0x0fff, + .rept_size = 5, + .read_data = tc45usb_read_data, + }, +#endif + +#ifdef CONFIG_TOUCHSCREEN_USB_NEXIO + [DEVTYPE_NEXIO] = { + .rept_size = 1024, + .irq_always = true, + .read_data = nexio_read_data, + .alloc = nexio_alloc, + .init = nexio_init, + .exit = nexio_exit, + }, +#endif +#ifdef CONFIG_TOUCHSCREEN_USB_EASYTOUCH + [DEVTYPE_ETOUCH] = { + .min_xc = 0x0, + .max_xc = 0x07ff, + .min_yc = 0x0, + .max_yc = 0x07ff, + .rept_size = 16, + .process_pkt = usbtouch_process_multi, + .get_pkt_len = etouch_get_pkt_len, + .read_data = etouch_read_data, + }, +#endif }; @@ -777,6 +1393,7 @@ out_flush_buf: static void usbtouch_irq(struct urb *urb) { struct usbtouch_usb *usbtouch = urb->context; + struct device *dev = &usbtouch->interface->dev; int retval; switch (urb->status) { @@ -785,73 +1402,159 @@ static void usbtouch_irq(struct urb *urb) break; case -ETIME: /* this urb is timing out */ - dbg("%s - urb timed out - was the device unplugged?", - __FUNCTION__); + dev_dbg(dev, + "%s - urb timed out - was the device unplugged?\n", + __func__); return; case -ECONNRESET: case -ENOENT: case -ESHUTDOWN: + case -EPIPE: /* this urb is terminated, clean up */ - dbg("%s - urb shutting down with status: %d", - __FUNCTION__, urb->status); + dev_dbg(dev, "%s - urb shutting down with status: %d\n", + __func__, urb->status); return; default: - dbg("%s - nonzero urb status received: %d", - __FUNCTION__, urb->status); + dev_dbg(dev, "%s - nonzero urb status received: %d\n", + __func__, urb->status); goto exit; } usbtouch->type->process_pkt(usbtouch, usbtouch->data, urb->actual_length); exit: + usb_mark_last_busy(interface_to_usbdev(usbtouch->interface)); retval = usb_submit_urb(urb, GFP_ATOMIC); if (retval) - err("%s - usb_submit_urb failed with result: %d", - __FUNCTION__, retval); + dev_err(dev, "%s - usb_submit_urb failed with result: %d\n", + __func__, retval); } static int usbtouch_open(struct input_dev *input) { struct usbtouch_usb *usbtouch = input_get_drvdata(input); + int r; - usbtouch->irq->dev = usbtouch->udev; + usbtouch->irq->dev = interface_to_usbdev(usbtouch->interface); - if (usb_submit_urb(usbtouch->irq, GFP_KERNEL)) - return -EIO; + r = usb_autopm_get_interface(usbtouch->interface) ? -EIO : 0; + if (r < 0) + goto out; - return 0; + if (!usbtouch->type->irq_always) { + if (usb_submit_urb(usbtouch->irq, GFP_KERNEL)) { + r = -EIO; + goto out_put; + } + } + + usbtouch->interface->needs_remote_wakeup = 1; +out_put: + usb_autopm_put_interface(usbtouch->interface); +out: + return r; } static void usbtouch_close(struct input_dev *input) { struct usbtouch_usb *usbtouch = input_get_drvdata(input); + int r; + + if (!usbtouch->type->irq_always) + usb_kill_urb(usbtouch->irq); + r = usb_autopm_get_interface(usbtouch->interface); + usbtouch->interface->needs_remote_wakeup = 0; + if (!r) + usb_autopm_put_interface(usbtouch->interface); +} + +static int usbtouch_suspend +(struct usb_interface *intf, pm_message_t message) +{ + struct usbtouch_usb *usbtouch = usb_get_intfdata(intf); usb_kill_urb(usbtouch->irq); + + return 0; +} + +static int usbtouch_resume(struct usb_interface *intf) +{ + struct usbtouch_usb *usbtouch = usb_get_intfdata(intf); + struct input_dev *input = usbtouch->input; + int result = 0; + + mutex_lock(&input->mutex); + if (input->users || usbtouch->type->irq_always) + result = usb_submit_urb(usbtouch->irq, GFP_NOIO); + mutex_unlock(&input->mutex); + + return result; } +static int usbtouch_reset_resume(struct usb_interface *intf) +{ + struct usbtouch_usb *usbtouch = usb_get_intfdata(intf); + struct input_dev *input = usbtouch->input; + int err = 0; + + /* reinit the device */ + if (usbtouch->type->init) { + err = usbtouch->type->init(usbtouch); + if (err) { + dev_dbg(&intf->dev, + "%s - type->init() failed, err: %d\n", + __func__, err); + return err; + } + } + + /* restart IO if needed */ + mutex_lock(&input->mutex); + if (input->users) + err = usb_submit_urb(usbtouch->irq, GFP_NOIO); + mutex_unlock(&input->mutex); + + return err; +} static void usbtouch_free_buffers(struct usb_device *udev, struct usbtouch_usb *usbtouch) { - usb_buffer_free(udev, usbtouch->type->rept_size, - usbtouch->data, usbtouch->data_dma); + usb_free_coherent(udev, usbtouch->data_size, + usbtouch->data, usbtouch->data_dma); kfree(usbtouch->buffer); } +static struct usb_endpoint_descriptor * +usbtouch_get_input_endpoint(struct usb_host_interface *interface) +{ + int i; + + for (i = 0; i < interface->desc.bNumEndpoints; i++) + if (usb_endpoint_dir_in(&interface->endpoint[i].desc)) + return &interface->endpoint[i].desc; + + return NULL; +} static int usbtouch_probe(struct usb_interface *intf, const struct usb_device_id *id) { struct usbtouch_usb *usbtouch; struct input_dev *input_dev; - struct usb_host_interface *interface; struct usb_endpoint_descriptor *endpoint; struct usb_device *udev = interface_to_usbdev(intf); struct usbtouch_device_info *type; int err = -ENOMEM; - interface = intf->cur_altsetting; - endpoint = &interface->endpoint[0].desc; + /* some devices are ignored */ + if (id->driver_info == DEVTYPE_IGNORE) + return -ENODEV; + + endpoint = usbtouch_get_input_endpoint(intf->cur_altsetting); + if (!endpoint) + return -ENXIO; usbtouch = kzalloc(sizeof(struct usbtouch_usb), GFP_KERNEL); input_dev = input_allocate_device(); @@ -863,8 +1566,21 @@ static int usbtouch_probe(struct usb_interface *intf, if (!type->process_pkt) type->process_pkt = usbtouch_process_pkt; - usbtouch->data = usb_buffer_alloc(udev, type->rept_size, - GFP_KERNEL, &usbtouch->data_dma); + usbtouch->data_size = type->rept_size; + if (type->get_pkt_len) { + /* + * When dealing with variable-length packets we should + * not request more than wMaxPacketSize bytes at once + * as we do not know if there is more data coming or + * we filled exactly wMaxPacketSize bytes and there is + * nothing else. + */ + usbtouch->data_size = min(usbtouch->data_size, + usb_endpoint_maxp(endpoint)); + } + + usbtouch->data = usb_alloc_coherent(udev, usbtouch->data_size, + GFP_KERNEL, &usbtouch->data_dma); if (!usbtouch->data) goto out_free; @@ -876,11 +1592,12 @@ static int usbtouch_probe(struct usb_interface *intf, usbtouch->irq = usb_alloc_urb(0, GFP_KERNEL); if (!usbtouch->irq) { - dbg("%s - usb_alloc_urb failed: usbtouch->irq", __FUNCTION__); + dev_dbg(&intf->dev, + "%s - usb_alloc_urb failed: usbtouch->irq\n", __func__); goto out_free_buffers; } - usbtouch->udev = udev; + usbtouch->interface = intf; usbtouch->input = input_dev; if (udev->manufacturer) @@ -919,34 +1636,76 @@ static int usbtouch_probe(struct usb_interface *intf, input_set_abs_params(input_dev, ABS_PRESSURE, type->min_press, type->max_press, 0, 0); - usb_fill_int_urb(usbtouch->irq, usbtouch->udev, - usb_rcvintpipe(usbtouch->udev, endpoint->bEndpointAddress), - usbtouch->data, type->rept_size, + if (usb_endpoint_type(endpoint) == USB_ENDPOINT_XFER_INT) + usb_fill_int_urb(usbtouch->irq, udev, + usb_rcvintpipe(udev, endpoint->bEndpointAddress), + usbtouch->data, usbtouch->data_size, usbtouch_irq, usbtouch, endpoint->bInterval); + else + usb_fill_bulk_urb(usbtouch->irq, udev, + usb_rcvbulkpipe(udev, endpoint->bEndpointAddress), + usbtouch->data, usbtouch->data_size, + usbtouch_irq, usbtouch); - usbtouch->irq->dev = usbtouch->udev; + usbtouch->irq->dev = udev; usbtouch->irq->transfer_dma = usbtouch->data_dma; usbtouch->irq->transfer_flags |= URB_NO_TRANSFER_DMA_MAP; - /* device specific init */ + /* device specific allocations */ + if (type->alloc) { + err = type->alloc(usbtouch); + if (err) { + dev_dbg(&intf->dev, + "%s - type->alloc() failed, err: %d\n", + __func__, err); + goto out_free_urb; + } + } + + /* device specific initialisation*/ if (type->init) { err = type->init(usbtouch); if (err) { - dbg("%s - type->init() failed, err: %d", __FUNCTION__, err); - goto out_free_buffers; + dev_dbg(&intf->dev, + "%s - type->init() failed, err: %d\n", + __func__, err); + goto out_do_exit; } } err = input_register_device(usbtouch->input); if (err) { - dbg("%s - input_register_device failed, err: %d", __FUNCTION__, err); - goto out_free_buffers; + dev_dbg(&intf->dev, + "%s - input_register_device failed, err: %d\n", + __func__, err); + goto out_do_exit; } usb_set_intfdata(intf, usbtouch); + if (usbtouch->type->irq_always) { + /* this can't fail */ + usb_autopm_get_interface(intf); + err = usb_submit_urb(usbtouch->irq, GFP_KERNEL); + if (err) { + usb_autopm_put_interface(intf); + dev_err(&intf->dev, + "%s - usb_submit_urb failed with result: %d\n", + __func__, err); + goto out_unregister_input; + } + } + return 0; +out_unregister_input: + input_unregister_device(input_dev); + input_dev = NULL; +out_do_exit: + if (type->exit) + type->exit(usbtouch); +out_free_urb: + usb_free_urb(usbtouch->irq); out_free_buffers: usbtouch_free_buffers(udev, usbtouch); out_free: @@ -959,16 +1718,18 @@ static void usbtouch_disconnect(struct usb_interface *intf) { struct usbtouch_usb *usbtouch = usb_get_intfdata(intf); - dbg("%s - called", __FUNCTION__); - if (!usbtouch) return; - dbg("%s - usbtouch is initialized, cleaning up", __FUNCTION__); + dev_dbg(&intf->dev, + "%s - usbtouch is initialized, cleaning up\n", __func__); + usb_set_intfdata(intf, NULL); - usb_kill_urb(usbtouch->irq); + /* this will stop IO via close */ input_unregister_device(usbtouch->input); usb_free_urb(usbtouch->irq); + if (usbtouch->type->exit) + usbtouch->type->exit(usbtouch); usbtouch_free_buffers(interface_to_usbdev(intf), usbtouch); kfree(usbtouch); } @@ -979,21 +1740,14 @@ static struct usb_driver usbtouch_driver = { .name = "usbtouchscreen", .probe = usbtouch_probe, .disconnect = usbtouch_disconnect, + .suspend = usbtouch_suspend, + .resume = usbtouch_resume, + .reset_resume = usbtouch_reset_resume, .id_table = usbtouch_devices, + .supports_autosuspend = 1, }; -static int __init usbtouch_init(void) -{ - return usb_register(&usbtouch_driver); -} - -static void __exit usbtouch_cleanup(void) -{ - usb_deregister(&usbtouch_driver); -} - -module_init(usbtouch_init); -module_exit(usbtouch_cleanup); +module_usb_driver(usbtouch_driver); MODULE_AUTHOR(DRIVER_AUTHOR); MODULE_DESCRIPTION(DRIVER_DESC); |