11a59d1b8SThomas Gleixner // SPDX-License-Identifier: GPL-2.0-or-later
24104d13fSDmitry Torokhov /*
34104d13fSDmitry Torokhov * Copyright (c) 2001-2005 Edouard TISSERANT <edouard.tisserant@wanadoo.fr>
44104d13fSDmitry Torokhov * Copyright (c) 2004-2005 Stephane VOLTZ <svoltz@numericable.fr>
54104d13fSDmitry Torokhov *
64104d13fSDmitry Torokhov * USB Acecad "Acecad Flair" tablet support
74104d13fSDmitry Torokhov *
84104d13fSDmitry Torokhov * Changelog:
94104d13fSDmitry Torokhov * v3.2 - Added sysfs support
104104d13fSDmitry Torokhov */
114104d13fSDmitry Torokhov
124104d13fSDmitry Torokhov #include <linux/kernel.h>
134104d13fSDmitry Torokhov #include <linux/slab.h>
144104d13fSDmitry Torokhov #include <linux/module.h>
154104d13fSDmitry Torokhov #include <linux/usb/input.h>
164104d13fSDmitry Torokhov
17698c03b4SJulia Lawall MODULE_AUTHOR("Edouard TISSERANT <edouard.tisserant@wanadoo.fr>");
18698c03b4SJulia Lawall MODULE_DESCRIPTION("USB Acecad Flair tablet driver");
199f1d1ea3SGreg Kroah-Hartman MODULE_LICENSE("GPL");
204104d13fSDmitry Torokhov
214104d13fSDmitry Torokhov #define USB_VENDOR_ID_ACECAD 0x0460
224104d13fSDmitry Torokhov #define USB_DEVICE_ID_FLAIR 0x0004
234104d13fSDmitry Torokhov #define USB_DEVICE_ID_302 0x0008
244104d13fSDmitry Torokhov
254104d13fSDmitry Torokhov struct usb_acecad {
264104d13fSDmitry Torokhov char name[128];
274104d13fSDmitry Torokhov char phys[64];
28334698d4SGreg Kroah-Hartman struct usb_interface *intf;
294104d13fSDmitry Torokhov struct input_dev *input;
304104d13fSDmitry Torokhov struct urb *irq;
314104d13fSDmitry Torokhov
324104d13fSDmitry Torokhov unsigned char *data;
334104d13fSDmitry Torokhov dma_addr_t data_dma;
344104d13fSDmitry Torokhov };
354104d13fSDmitry Torokhov
usb_acecad_irq(struct urb * urb)364104d13fSDmitry Torokhov static void usb_acecad_irq(struct urb *urb)
374104d13fSDmitry Torokhov {
384104d13fSDmitry Torokhov struct usb_acecad *acecad = urb->context;
394104d13fSDmitry Torokhov unsigned char *data = acecad->data;
404104d13fSDmitry Torokhov struct input_dev *dev = acecad->input;
41334698d4SGreg Kroah-Hartman struct usb_interface *intf = acecad->intf;
427edf2c9cSOliver Neukum struct usb_device *udev = interface_to_usbdev(intf);
434104d13fSDmitry Torokhov int prox, status;
444104d13fSDmitry Torokhov
454104d13fSDmitry Torokhov switch (urb->status) {
464104d13fSDmitry Torokhov case 0:
474104d13fSDmitry Torokhov /* success */
484104d13fSDmitry Torokhov break;
494104d13fSDmitry Torokhov case -ECONNRESET:
504104d13fSDmitry Torokhov case -ENOENT:
514104d13fSDmitry Torokhov case -ESHUTDOWN:
524104d13fSDmitry Torokhov /* this urb is terminated, clean up */
53334698d4SGreg Kroah-Hartman dev_dbg(&intf->dev, "%s - urb shutting down with status: %d\n",
54eeba1ae1SGreg Kroah-Hartman __func__, urb->status);
554104d13fSDmitry Torokhov return;
564104d13fSDmitry Torokhov default:
57334698d4SGreg Kroah-Hartman dev_dbg(&intf->dev, "%s - nonzero urb status received: %d\n",
58eeba1ae1SGreg Kroah-Hartman __func__, urb->status);
594104d13fSDmitry Torokhov goto resubmit;
604104d13fSDmitry Torokhov }
614104d13fSDmitry Torokhov
624104d13fSDmitry Torokhov prox = (data[0] & 0x04) >> 2;
634104d13fSDmitry Torokhov input_report_key(dev, BTN_TOOL_PEN, prox);
644104d13fSDmitry Torokhov
654104d13fSDmitry Torokhov if (prox) {
664104d13fSDmitry Torokhov int x = data[1] | (data[2] << 8);
674104d13fSDmitry Torokhov int y = data[3] | (data[4] << 8);
684104d13fSDmitry Torokhov /* Pressure should compute the same way for flair and 302 */
694104d13fSDmitry Torokhov int pressure = data[5] | (data[6] << 8);
704104d13fSDmitry Torokhov int touch = data[0] & 0x01;
714104d13fSDmitry Torokhov int stylus = (data[0] & 0x10) >> 4;
724104d13fSDmitry Torokhov int stylus2 = (data[0] & 0x20) >> 5;
734104d13fSDmitry Torokhov input_report_abs(dev, ABS_X, x);
744104d13fSDmitry Torokhov input_report_abs(dev, ABS_Y, y);
754104d13fSDmitry Torokhov input_report_abs(dev, ABS_PRESSURE, pressure);
764104d13fSDmitry Torokhov input_report_key(dev, BTN_TOUCH, touch);
774104d13fSDmitry Torokhov input_report_key(dev, BTN_STYLUS, stylus);
784104d13fSDmitry Torokhov input_report_key(dev, BTN_STYLUS2, stylus2);
794104d13fSDmitry Torokhov }
804104d13fSDmitry Torokhov
814104d13fSDmitry Torokhov /* event termination */
824104d13fSDmitry Torokhov input_sync(dev);
834104d13fSDmitry Torokhov
844104d13fSDmitry Torokhov resubmit:
854104d13fSDmitry Torokhov status = usb_submit_urb(urb, GFP_ATOMIC);
864104d13fSDmitry Torokhov if (status)
87334698d4SGreg Kroah-Hartman dev_err(&intf->dev,
88b59c82bdSGreg Kroah-Hartman "can't resubmit intr, %s-%s/input0, status %d\n",
897edf2c9cSOliver Neukum udev->bus->bus_name,
907edf2c9cSOliver Neukum udev->devpath, status);
914104d13fSDmitry Torokhov }
924104d13fSDmitry Torokhov
usb_acecad_open(struct input_dev * dev)934104d13fSDmitry Torokhov static int usb_acecad_open(struct input_dev *dev)
944104d13fSDmitry Torokhov {
954104d13fSDmitry Torokhov struct usb_acecad *acecad = input_get_drvdata(dev);
964104d13fSDmitry Torokhov
977edf2c9cSOliver Neukum acecad->irq->dev = interface_to_usbdev(acecad->intf);
984104d13fSDmitry Torokhov if (usb_submit_urb(acecad->irq, GFP_KERNEL))
994104d13fSDmitry Torokhov return -EIO;
1004104d13fSDmitry Torokhov
1014104d13fSDmitry Torokhov return 0;
1024104d13fSDmitry Torokhov }
1034104d13fSDmitry Torokhov
usb_acecad_close(struct input_dev * dev)1044104d13fSDmitry Torokhov static void usb_acecad_close(struct input_dev *dev)
1054104d13fSDmitry Torokhov {
1064104d13fSDmitry Torokhov struct usb_acecad *acecad = input_get_drvdata(dev);
1074104d13fSDmitry Torokhov
1084104d13fSDmitry Torokhov usb_kill_urb(acecad->irq);
1094104d13fSDmitry Torokhov }
1104104d13fSDmitry Torokhov
usb_acecad_probe(struct usb_interface * intf,const struct usb_device_id * id)1114104d13fSDmitry Torokhov static int usb_acecad_probe(struct usb_interface *intf, const struct usb_device_id *id)
1124104d13fSDmitry Torokhov {
1134104d13fSDmitry Torokhov struct usb_device *dev = interface_to_usbdev(intf);
1144104d13fSDmitry Torokhov struct usb_host_interface *interface = intf->cur_altsetting;
1154104d13fSDmitry Torokhov struct usb_endpoint_descriptor *endpoint;
1164104d13fSDmitry Torokhov struct usb_acecad *acecad;
1174104d13fSDmitry Torokhov struct input_dev *input_dev;
1184104d13fSDmitry Torokhov int pipe, maxp;
119b426571cSDmitry Torokhov int err;
1204104d13fSDmitry Torokhov
1214104d13fSDmitry Torokhov if (interface->desc.bNumEndpoints != 1)
1224104d13fSDmitry Torokhov return -ENODEV;
1234104d13fSDmitry Torokhov
1244104d13fSDmitry Torokhov endpoint = &interface->endpoint[0].desc;
1254104d13fSDmitry Torokhov
1264104d13fSDmitry Torokhov if (!usb_endpoint_is_int_in(endpoint))
1274104d13fSDmitry Torokhov return -ENODEV;
1284104d13fSDmitry Torokhov
1294104d13fSDmitry Torokhov pipe = usb_rcvintpipe(dev, endpoint->bEndpointAddress);
130948bf187SVincent Mailhol maxp = usb_maxpacket(dev, pipe);
1314104d13fSDmitry Torokhov
1324104d13fSDmitry Torokhov acecad = kzalloc(sizeof(struct usb_acecad), GFP_KERNEL);
1334104d13fSDmitry Torokhov input_dev = input_allocate_device();
1344104d13fSDmitry Torokhov if (!acecad || !input_dev) {
1354104d13fSDmitry Torokhov err = -ENOMEM;
1364104d13fSDmitry Torokhov goto fail1;
1374104d13fSDmitry Torokhov }
1384104d13fSDmitry Torokhov
139997ea58eSDaniel Mack acecad->data = usb_alloc_coherent(dev, 8, GFP_KERNEL, &acecad->data_dma);
1404104d13fSDmitry Torokhov if (!acecad->data) {
1414104d13fSDmitry Torokhov err= -ENOMEM;
1424104d13fSDmitry Torokhov goto fail1;
1434104d13fSDmitry Torokhov }
1444104d13fSDmitry Torokhov
1454104d13fSDmitry Torokhov acecad->irq = usb_alloc_urb(0, GFP_KERNEL);
1464104d13fSDmitry Torokhov if (!acecad->irq) {
1474104d13fSDmitry Torokhov err = -ENOMEM;
1484104d13fSDmitry Torokhov goto fail2;
1494104d13fSDmitry Torokhov }
1504104d13fSDmitry Torokhov
151334698d4SGreg Kroah-Hartman acecad->intf = intf;
1524104d13fSDmitry Torokhov acecad->input = input_dev;
1534104d13fSDmitry Torokhov
1544104d13fSDmitry Torokhov if (dev->manufacturer)
155*a9f08ad7SWolfram Sang strscpy(acecad->name, dev->manufacturer, sizeof(acecad->name));
1564104d13fSDmitry Torokhov
1574104d13fSDmitry Torokhov if (dev->product) {
1584104d13fSDmitry Torokhov if (dev->manufacturer)
1594104d13fSDmitry Torokhov strlcat(acecad->name, " ", sizeof(acecad->name));
1604104d13fSDmitry Torokhov strlcat(acecad->name, dev->product, sizeof(acecad->name));
1614104d13fSDmitry Torokhov }
1624104d13fSDmitry Torokhov
1634104d13fSDmitry Torokhov usb_make_path(dev, acecad->phys, sizeof(acecad->phys));
1644104d13fSDmitry Torokhov strlcat(acecad->phys, "/input0", sizeof(acecad->phys));
1654104d13fSDmitry Torokhov
1664104d13fSDmitry Torokhov input_dev->name = acecad->name;
1674104d13fSDmitry Torokhov input_dev->phys = acecad->phys;
1684104d13fSDmitry Torokhov usb_to_input_id(dev, &input_dev->id);
1694104d13fSDmitry Torokhov input_dev->dev.parent = &intf->dev;
1704104d13fSDmitry Torokhov
1714104d13fSDmitry Torokhov input_set_drvdata(input_dev, acecad);
1724104d13fSDmitry Torokhov
1734104d13fSDmitry Torokhov input_dev->open = usb_acecad_open;
1744104d13fSDmitry Torokhov input_dev->close = usb_acecad_close;
1754104d13fSDmitry Torokhov
1767b19ada2SJiri Slaby input_dev->evbit[0] = BIT_MASK(EV_KEY) | BIT_MASK(EV_ABS);
1777b19ada2SJiri Slaby input_dev->keybit[BIT_WORD(BTN_DIGI)] = BIT_MASK(BTN_TOOL_PEN) |
1787b19ada2SJiri Slaby BIT_MASK(BTN_TOUCH) | BIT_MASK(BTN_STYLUS) |
1797b19ada2SJiri Slaby BIT_MASK(BTN_STYLUS2);
1804104d13fSDmitry Torokhov
1814104d13fSDmitry Torokhov switch (id->driver_info) {
1824104d13fSDmitry Torokhov case 0:
183b426571cSDmitry Torokhov input_set_abs_params(input_dev, ABS_X, 0, 5000, 4, 0);
184b426571cSDmitry Torokhov input_set_abs_params(input_dev, ABS_Y, 0, 3750, 4, 0);
185b426571cSDmitry Torokhov input_set_abs_params(input_dev, ABS_PRESSURE, 0, 512, 0, 0);
1864104d13fSDmitry Torokhov if (!strlen(acecad->name))
1874104d13fSDmitry Torokhov snprintf(acecad->name, sizeof(acecad->name),
1884104d13fSDmitry Torokhov "USB Acecad Flair Tablet %04x:%04x",
1894104d13fSDmitry Torokhov le16_to_cpu(dev->descriptor.idVendor),
1904104d13fSDmitry Torokhov le16_to_cpu(dev->descriptor.idProduct));
1914104d13fSDmitry Torokhov break;
192b426571cSDmitry Torokhov
1934104d13fSDmitry Torokhov case 1:
194b426571cSDmitry Torokhov input_set_abs_params(input_dev, ABS_X, 0, 53000, 4, 0);
195b426571cSDmitry Torokhov input_set_abs_params(input_dev, ABS_Y, 0, 2250, 4, 0);
196b426571cSDmitry Torokhov input_set_abs_params(input_dev, ABS_PRESSURE, 0, 1024, 0, 0);
1974104d13fSDmitry Torokhov if (!strlen(acecad->name))
1984104d13fSDmitry Torokhov snprintf(acecad->name, sizeof(acecad->name),
1994104d13fSDmitry Torokhov "USB Acecad 302 Tablet %04x:%04x",
2004104d13fSDmitry Torokhov le16_to_cpu(dev->descriptor.idVendor),
2014104d13fSDmitry Torokhov le16_to_cpu(dev->descriptor.idProduct));
2024104d13fSDmitry Torokhov break;
2034104d13fSDmitry Torokhov }
2044104d13fSDmitry Torokhov
2054104d13fSDmitry Torokhov usb_fill_int_urb(acecad->irq, dev, pipe,
2064104d13fSDmitry Torokhov acecad->data, maxp > 8 ? 8 : maxp,
2074104d13fSDmitry Torokhov usb_acecad_irq, acecad, endpoint->bInterval);
2084104d13fSDmitry Torokhov acecad->irq->transfer_dma = acecad->data_dma;
2094104d13fSDmitry Torokhov acecad->irq->transfer_flags |= URB_NO_TRANSFER_DMA_MAP;
2104104d13fSDmitry Torokhov
2114104d13fSDmitry Torokhov err = input_register_device(acecad->input);
2124104d13fSDmitry Torokhov if (err)
213a4503199SAxel Lin goto fail3;
2144104d13fSDmitry Torokhov
2154104d13fSDmitry Torokhov usb_set_intfdata(intf, acecad);
2164104d13fSDmitry Torokhov
2174104d13fSDmitry Torokhov return 0;
2184104d13fSDmitry Torokhov
219a4503199SAxel Lin fail3: usb_free_urb(acecad->irq);
220997ea58eSDaniel Mack fail2: usb_free_coherent(dev, 8, acecad->data, acecad->data_dma);
2214104d13fSDmitry Torokhov fail1: input_free_device(input_dev);
2224104d13fSDmitry Torokhov kfree(acecad);
2234104d13fSDmitry Torokhov return err;
2244104d13fSDmitry Torokhov }
2254104d13fSDmitry Torokhov
usb_acecad_disconnect(struct usb_interface * intf)2264104d13fSDmitry Torokhov static void usb_acecad_disconnect(struct usb_interface *intf)
2274104d13fSDmitry Torokhov {
2284104d13fSDmitry Torokhov struct usb_acecad *acecad = usb_get_intfdata(intf);
2297edf2c9cSOliver Neukum struct usb_device *udev = interface_to_usbdev(intf);
2304104d13fSDmitry Torokhov
2314104d13fSDmitry Torokhov usb_set_intfdata(intf, NULL);
2325492f6f8SDmitry Torokhov
2334104d13fSDmitry Torokhov input_unregister_device(acecad->input);
2344104d13fSDmitry Torokhov usb_free_urb(acecad->irq);
2357edf2c9cSOliver Neukum usb_free_coherent(udev, 8, acecad->data, acecad->data_dma);
2364104d13fSDmitry Torokhov kfree(acecad);
2374104d13fSDmitry Torokhov }
2384104d13fSDmitry Torokhov
239803088faSArvind Yadav static const struct usb_device_id usb_acecad_id_table[] = {
2404104d13fSDmitry Torokhov { USB_DEVICE(USB_VENDOR_ID_ACECAD, USB_DEVICE_ID_FLAIR), .driver_info = 0 },
2414104d13fSDmitry Torokhov { USB_DEVICE(USB_VENDOR_ID_ACECAD, USB_DEVICE_ID_302), .driver_info = 1 },
2424104d13fSDmitry Torokhov { }
2434104d13fSDmitry Torokhov };
2444104d13fSDmitry Torokhov
2454104d13fSDmitry Torokhov MODULE_DEVICE_TABLE(usb, usb_acecad_id_table);
2464104d13fSDmitry Torokhov
2474104d13fSDmitry Torokhov static struct usb_driver usb_acecad_driver = {
2484104d13fSDmitry Torokhov .name = "usb_acecad",
2494104d13fSDmitry Torokhov .probe = usb_acecad_probe,
2504104d13fSDmitry Torokhov .disconnect = usb_acecad_disconnect,
2514104d13fSDmitry Torokhov .id_table = usb_acecad_id_table,
2524104d13fSDmitry Torokhov };
2534104d13fSDmitry Torokhov
25408642e7cSGreg Kroah-Hartman module_usb_driver(usb_acecad_driver);
255