1/* 2 * Copyright (c) 1999-2001 Vojtech Pavlik 3 * 4 * USB HIDBP Mouse support 5 */ 6 7/* 8 * This program is free software; you can redistribute it and/or modify 9 * it under the terms of the GNU General Public License as published by 10 * the Free Software Foundation; either version 2 of the License, or 11 * (at your option) any later version. 12 * 13 * This program is distributed in the hope that it will be useful, 14 * but WITHOUT ANY WARRANTY; without even the implied warranty of 15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 16 * GNU General Public License for more details. 17 * 18 * You should have received a copy of the GNU General Public License 19 * along with this program; if not, write to the Free Software 20 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA 21 * 22 * Should you need to contact me, the author, you can do so either by 23 * e-mail - mail your message to <vojtech@ucw.cz>, or by paper mail: 24 * Vojtech Pavlik, Simunkova 1594, Prague 8, 182 00 Czech Republic 25 */ 26 27#include <linux/kernel.h> 28#include <linux/slab.h> 29#include <linux/module.h> 30#include <linux/init.h> 31#include <linux/usb/input.h> 32#include <linux/hid.h> 33 34/* for apple IDs */ 35#ifdef CONFIG_USB_HID_MODULE 36#include "../hid-ids.h" 37#endif 38 39/* 40 * Version Information 41 */ 42#define DRIVER_VERSION "v1.6" 43#define DRIVER_AUTHOR "Vojtech Pavlik <vojtech@ucw.cz>" 44#define DRIVER_DESC "USB HID Boot Protocol mouse driver" 45#define DRIVER_LICENSE "GPL" 46 47MODULE_AUTHOR(DRIVER_AUTHOR); 48MODULE_DESCRIPTION(DRIVER_DESC); 49MODULE_LICENSE(DRIVER_LICENSE); 50 51struct usb_mouse { 52 char name[128]; 53 char phys[64]; 54 struct usb_device *usbdev; 55 struct input_dev *dev; 56 struct urb *irq; 57 58 signed char *data; 59 dma_addr_t data_dma; 60}; 61 62static void usb_mouse_irq(struct urb *urb) 63{ 64 struct usb_mouse *mouse = urb->context; 65 signed char *data = mouse->data; 66 struct input_dev *dev = mouse->dev; 67 int status; 68 69 switch (urb->status) { 70 case 0: /* success */ 71 break; 72 case -ECONNRESET: /* unlink */ 73 case -ENOENT: 74 case -ESHUTDOWN: 75 return; 76 /* -EPIPE: should clear the halt */ 77 default: /* error */ 78 goto resubmit; 79 } 80 81 input_report_key(dev, BTN_LEFT, data[0] & 0x01); 82 input_report_key(dev, BTN_RIGHT, data[0] & 0x02); 83 input_report_key(dev, BTN_MIDDLE, data[0] & 0x04); 84 input_report_key(dev, BTN_SIDE, data[0] & 0x08); 85 input_report_key(dev, BTN_EXTRA, data[0] & 0x10); 86 87 input_report_rel(dev, REL_X, data[1]); 88 input_report_rel(dev, REL_Y, data[2]); 89 input_report_rel(dev, REL_WHEEL, data[3]); 90 91 input_sync(dev); 92resubmit: 93 status = usb_submit_urb (urb, GFP_ATOMIC); 94 if (status) 95 dev_err(&mouse->usbdev->dev, 96 "can't resubmit intr, %s-%s/input0, status %d\n", 97 mouse->usbdev->bus->bus_name, 98 mouse->usbdev->devpath, status); 99} 100 101static int usb_mouse_open(struct input_dev *dev) 102{ 103 struct usb_mouse *mouse = input_get_drvdata(dev); 104 105 mouse->irq->dev = mouse->usbdev; 106 if (usb_submit_urb(mouse->irq, GFP_KERNEL)) 107 return -EIO; 108 109 return 0; 110} 111 112static void usb_mouse_close(struct input_dev *dev) 113{ 114 struct usb_mouse *mouse = input_get_drvdata(dev); 115 116 usb_kill_urb(mouse->irq); 117} 118 119static int usb_mouse_probe(struct usb_interface *intf, const struct usb_device_id *id) 120{ 121 struct usb_device *dev = interface_to_usbdev(intf); 122 struct usb_host_interface *interface; 123 struct usb_endpoint_descriptor *endpoint; 124 struct usb_mouse *mouse; 125 struct input_dev *input_dev; 126 int pipe, maxp; 127 int error = -ENOMEM; 128 129 interface = intf->cur_altsetting; 130 131 if (interface->desc.bNumEndpoints != 1) 132 return -ENODEV; 133 134 endpoint = &interface->endpoint[0].desc; 135 if (!usb_endpoint_is_int_in(endpoint)) 136 return -ENODEV; 137 138 pipe = usb_rcvintpipe(dev, endpoint->bEndpointAddress); 139 maxp = usb_maxpacket(dev, pipe, usb_pipeout(pipe)); 140 141 mouse = kzalloc(sizeof(struct usb_mouse), GFP_KERNEL); 142 input_dev = input_allocate_device(); 143 if (!mouse || !input_dev) 144 goto fail1; 145 146 mouse->data = usb_alloc_coherent(dev, 8, GFP_ATOMIC, &mouse->data_dma); 147 if (!mouse->data) 148 goto fail1; 149 150 mouse->irq = usb_alloc_urb(0, GFP_KERNEL); 151 if (!mouse->irq) 152 goto fail2; 153 154 mouse->usbdev = dev; 155 mouse->dev = input_dev; 156 157 if (dev->manufacturer) 158 strlcpy(mouse->name, dev->manufacturer, sizeof(mouse->name)); 159 160 if (dev->product) { 161 if (dev->manufacturer) 162 strlcat(mouse->name, " ", sizeof(mouse->name)); 163 strlcat(mouse->name, dev->product, sizeof(mouse->name)); 164 } 165 166 if (!strlen(mouse->name)) 167 snprintf(mouse->name, sizeof(mouse->name), 168 "USB HIDBP Mouse %04x:%04x", 169 le16_to_cpu(dev->descriptor.idVendor), 170 le16_to_cpu(dev->descriptor.idProduct)); 171 172 usb_make_path(dev, mouse->phys, sizeof(mouse->phys)); 173 strlcat(mouse->phys, "/input0", sizeof(mouse->phys)); 174 175 input_dev->name = mouse->name; 176 input_dev->phys = mouse->phys; 177 usb_to_input_id(dev, &input_dev->id); 178 input_dev->dev.parent = &intf->dev; 179 180 input_dev->evbit[0] = BIT_MASK(EV_KEY) | BIT_MASK(EV_REL); 181 input_dev->keybit[BIT_WORD(BTN_MOUSE)] = BIT_MASK(BTN_LEFT) | 182 BIT_MASK(BTN_RIGHT) | BIT_MASK(BTN_MIDDLE); 183 input_dev->relbit[0] = BIT_MASK(REL_X) | BIT_MASK(REL_Y); 184 input_dev->keybit[BIT_WORD(BTN_MOUSE)] |= BIT_MASK(BTN_SIDE) | 185 BIT_MASK(BTN_EXTRA); 186 input_dev->relbit[0] |= BIT_MASK(REL_WHEEL); 187 188 input_set_drvdata(input_dev, mouse); 189 190 input_dev->open = usb_mouse_open; 191 input_dev->close = usb_mouse_close; 192 193 usb_fill_int_urb(mouse->irq, dev, pipe, mouse->data, 194 (maxp > 8 ? 8 : maxp), 195 usb_mouse_irq, mouse, endpoint->bInterval); 196 mouse->irq->transfer_dma = mouse->data_dma; 197 mouse->irq->transfer_flags |= URB_NO_TRANSFER_DMA_MAP; 198 199 error = input_register_device(mouse->dev); 200 if (error) 201 goto fail3; 202 203 usb_set_intfdata(intf, mouse); 204 return 0; 205 206fail3: 207 usb_free_urb(mouse->irq); 208fail2: 209 usb_free_coherent(dev, 8, mouse->data, mouse->data_dma); 210fail1: 211 input_free_device(input_dev); 212 kfree(mouse); 213 return error; 214} 215 216static void usb_mouse_disconnect(struct usb_interface *intf) 217{ 218 struct usb_mouse *mouse = usb_get_intfdata (intf); 219 220 usb_set_intfdata(intf, NULL); 221 if (mouse) { 222 usb_kill_urb(mouse->irq); 223 input_unregister_device(mouse->dev); 224 usb_free_urb(mouse->irq); 225 usb_free_coherent(interface_to_usbdev(intf), 8, mouse->data, mouse->data_dma); 226 kfree(mouse); 227 } 228} 229 230static struct usb_device_id usb_mouse_id_table [] = { 231 { USB_INTERFACE_INFO(USB_INTERFACE_CLASS_HID, USB_INTERFACE_SUBCLASS_BOOT, 232 USB_INTERFACE_PROTOCOL_MOUSE) }, 233 { } /* Terminating entry */ 234}; 235 236MODULE_DEVICE_TABLE (usb, usb_mouse_id_table); 237 238static struct usb_driver usb_mouse_driver = { 239 .name = "usbmouse", 240 .probe = usb_mouse_probe, 241 .disconnect = usb_mouse_disconnect, 242 .id_table = usb_mouse_id_table, 243}; 244 245module_usb_driver(usb_mouse_driver); 246