| /* |
| * Copyright (c) 2001-2005 Edouard TISSERANT <edouard.tisserant@wanadoo.fr> |
| * Copyright (c) 2004-2005 Stephane VOLTZ <svoltz@numericable.fr> |
| * |
| * USB Acecad "Acecad Flair" tablet support |
| * |
| * Changelog: |
| * v3.2 - Added sysfs support |
| */ |
| |
| /* |
| * This program is free software; you can redistribute it and/or modify |
| * it under the terms of the GNU General Public License as published by |
| * the Free Software Foundation; either version 2 of the License, or |
| * (at your option) any later version. |
| * |
| * This program is distributed in the hope that it will be useful, |
| * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| * GNU General Public License for more details. |
| * |
| * You should have received a copy of the GNU General Public License |
| * along with this program; if not, write to the Free Software |
| * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA |
| * |
| */ |
| |
| #include <linux/kernel.h> |
| #include <linux/slab.h> |
| #include <linux/module.h> |
| #include <linux/init.h> |
| #include <linux/usb/input.h> |
| |
| /* |
| * Version Information |
| */ |
| #define DRIVER_VERSION "v3.2" |
| #define DRIVER_DESC "USB Acecad Flair tablet driver" |
| #define DRIVER_LICENSE "GPL" |
| #define DRIVER_AUTHOR "Edouard TISSERANT <edouard.tisserant@wanadoo.fr>" |
| |
| MODULE_AUTHOR(DRIVER_AUTHOR); |
| MODULE_DESCRIPTION(DRIVER_DESC); |
| MODULE_LICENSE(DRIVER_LICENSE); |
| |
| #define USB_VENDOR_ID_ACECAD 0x0460 |
| #define USB_DEVICE_ID_FLAIR 0x0004 |
| #define USB_DEVICE_ID_302 0x0008 |
| |
| struct usb_acecad { |
| char name[128]; |
| char phys[64]; |
| struct usb_device *usbdev; |
| struct input_dev *input; |
| struct urb *irq; |
| |
| unsigned char *data; |
| dma_addr_t data_dma; |
| }; |
| |
| static void usb_acecad_irq(struct urb *urb) |
| { |
| struct usb_acecad *acecad = urb->context; |
| unsigned char *data = acecad->data; |
| struct input_dev *dev = acecad->input; |
| int prox, status; |
| |
| switch (urb->status) { |
| case 0: |
| /* success */ |
| break; |
| case -ECONNRESET: |
| case -ENOENT: |
| case -ESHUTDOWN: |
| /* this urb is terminated, clean up */ |
| dbg("%s - urb shutting down with status: %d", __func__, urb->status); |
| return; |
| default: |
| dbg("%s - nonzero urb status received: %d", __func__, urb->status); |
| goto resubmit; |
| } |
| |
| prox = (data[0] & 0x04) >> 2; |
| input_report_key(dev, BTN_TOOL_PEN, prox); |
| |
| if (prox) { |
| int x = data[1] | (data[2] << 8); |
| int y = data[3] | (data[4] << 8); |
| /* Pressure should compute the same way for flair and 302 */ |
| int pressure = data[5] | (data[6] << 8); |
| int touch = data[0] & 0x01; |
| int stylus = (data[0] & 0x10) >> 4; |
| int stylus2 = (data[0] & 0x20) >> 5; |
| input_report_abs(dev, ABS_X, x); |
| input_report_abs(dev, ABS_Y, y); |
| input_report_abs(dev, ABS_PRESSURE, pressure); |
| input_report_key(dev, BTN_TOUCH, touch); |
| input_report_key(dev, BTN_STYLUS, stylus); |
| input_report_key(dev, BTN_STYLUS2, stylus2); |
| } |
| |
| /* event termination */ |
| input_sync(dev); |
| |
| resubmit: |
| status = usb_submit_urb(urb, GFP_ATOMIC); |
| if (status) |
| err("can't resubmit intr, %s-%s/input0, status %d", |
| acecad->usbdev->bus->bus_name, acecad->usbdev->devpath, status); |
| } |
| |
| static int usb_acecad_open(struct input_dev *dev) |
| { |
| struct usb_acecad *acecad = input_get_drvdata(dev); |
| |
| acecad->irq->dev = acecad->usbdev; |
| if (usb_submit_urb(acecad->irq, GFP_KERNEL)) |
| return -EIO; |
| |
| return 0; |
| } |
| |
| static void usb_acecad_close(struct input_dev *dev) |
| { |
| struct usb_acecad *acecad = input_get_drvdata(dev); |
| |
| usb_kill_urb(acecad->irq); |
| } |
| |
| static int usb_acecad_probe(struct usb_interface *intf, const struct usb_device_id *id) |
| { |
| struct usb_device *dev = interface_to_usbdev(intf); |
| struct usb_host_interface *interface = intf->cur_altsetting; |
| struct usb_endpoint_descriptor *endpoint; |
| struct usb_acecad *acecad; |
| struct input_dev *input_dev; |
| int pipe, maxp; |
| int err; |
| |
| if (interface->desc.bNumEndpoints != 1) |
| return -ENODEV; |
| |
| endpoint = &interface->endpoint[0].desc; |
| |
| if (!usb_endpoint_is_int_in(endpoint)) |
| return -ENODEV; |
| |
| pipe = usb_rcvintpipe(dev, endpoint->bEndpointAddress); |
| maxp = usb_maxpacket(dev, pipe, usb_pipeout(pipe)); |
| |
| acecad = kzalloc(sizeof(struct usb_acecad), GFP_KERNEL); |
| input_dev = input_allocate_device(); |
| if (!acecad || !input_dev) { |
| err = -ENOMEM; |
| goto fail1; |
| } |
| |
| acecad->data = usb_alloc_coherent(dev, 8, GFP_KERNEL, &acecad->data_dma); |
| if (!acecad->data) { |
| err= -ENOMEM; |
| goto fail1; |
| } |
| |
| acecad->irq = usb_alloc_urb(0, GFP_KERNEL); |
| if (!acecad->irq) { |
| err = -ENOMEM; |
| goto fail2; |
| } |
| |
| acecad->usbdev = dev; |
| acecad->input = input_dev; |
| |
| if (dev->manufacturer) |
| strlcpy(acecad->name, dev->manufacturer, sizeof(acecad->name)); |
| |
| if (dev->product) { |
| if (dev->manufacturer) |
| strlcat(acecad->name, " ", sizeof(acecad->name)); |
| strlcat(acecad->name, dev->product, sizeof(acecad->name)); |
| } |
| |
| usb_make_path(dev, acecad->phys, sizeof(acecad->phys)); |
| strlcat(acecad->phys, "/input0", sizeof(acecad->phys)); |
| |
| input_dev->name = acecad->name; |
| input_dev->phys = acecad->phys; |
| usb_to_input_id(dev, &input_dev->id); |
| input_dev->dev.parent = &intf->dev; |
| |
| input_set_drvdata(input_dev, acecad); |
| |
| input_dev->open = usb_acecad_open; |
| input_dev->close = usb_acecad_close; |
| |
| input_dev->evbit[0] = BIT_MASK(EV_KEY) | BIT_MASK(EV_ABS); |
| input_dev->keybit[BIT_WORD(BTN_DIGI)] = BIT_MASK(BTN_TOOL_PEN) | |
| BIT_MASK(BTN_TOUCH) | BIT_MASK(BTN_STYLUS) | |
| BIT_MASK(BTN_STYLUS2); |
| |
| switch (id->driver_info) { |
| case 0: |
| input_set_abs_params(input_dev, ABS_X, 0, 5000, 4, 0); |
| input_set_abs_params(input_dev, ABS_Y, 0, 3750, 4, 0); |
| input_set_abs_params(input_dev, ABS_PRESSURE, 0, 512, 0, 0); |
| if (!strlen(acecad->name)) |
| snprintf(acecad->name, sizeof(acecad->name), |
| "USB Acecad Flair Tablet %04x:%04x", |
| le16_to_cpu(dev->descriptor.idVendor), |
| le16_to_cpu(dev->descriptor.idProduct)); |
| break; |
| |
| case 1: |
| input_set_abs_params(input_dev, ABS_X, 0, 53000, 4, 0); |
| input_set_abs_params(input_dev, ABS_Y, 0, 2250, 4, 0); |
| input_set_abs_params(input_dev, ABS_PRESSURE, 0, 1024, 0, 0); |
| if (!strlen(acecad->name)) |
| snprintf(acecad->name, sizeof(acecad->name), |
| "USB Acecad 302 Tablet %04x:%04x", |
| le16_to_cpu(dev->descriptor.idVendor), |
| le16_to_cpu(dev->descriptor.idProduct)); |
| break; |
| } |
| |
| usb_fill_int_urb(acecad->irq, dev, pipe, |
| acecad->data, maxp > 8 ? 8 : maxp, |
| usb_acecad_irq, acecad, endpoint->bInterval); |
| acecad->irq->transfer_dma = acecad->data_dma; |
| acecad->irq->transfer_flags |= URB_NO_TRANSFER_DMA_MAP; |
| |
| err = input_register_device(acecad->input); |
| if (err) |
| goto fail3; |
| |
| usb_set_intfdata(intf, acecad); |
| |
| return 0; |
| |
| fail3: usb_free_urb(acecad->irq); |
| fail2: usb_free_coherent(dev, 8, acecad->data, acecad->data_dma); |
| fail1: input_free_device(input_dev); |
| kfree(acecad); |
| return err; |
| } |
| |
| static void usb_acecad_disconnect(struct usb_interface *intf) |
| { |
| struct usb_acecad *acecad = usb_get_intfdata(intf); |
| |
| usb_set_intfdata(intf, NULL); |
| |
| input_unregister_device(acecad->input); |
| usb_free_urb(acecad->irq); |
| usb_free_coherent(acecad->usbdev, 8, acecad->data, acecad->data_dma); |
| kfree(acecad); |
| } |
| |
| static struct usb_device_id usb_acecad_id_table [] = { |
| { USB_DEVICE(USB_VENDOR_ID_ACECAD, USB_DEVICE_ID_FLAIR), .driver_info = 0 }, |
| { USB_DEVICE(USB_VENDOR_ID_ACECAD, USB_DEVICE_ID_302), .driver_info = 1 }, |
| { } |
| }; |
| |
| MODULE_DEVICE_TABLE(usb, usb_acecad_id_table); |
| |
| static struct usb_driver usb_acecad_driver = { |
| .name = "usb_acecad", |
| .probe = usb_acecad_probe, |
| .disconnect = usb_acecad_disconnect, |
| .id_table = usb_acecad_id_table, |
| }; |
| |
| module_usb_driver(usb_acecad_driver); |