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| Rev | Author | Line No. | Line |
|---|---|---|---|
| 846 | giacomo | 1 | /* |
| 2 | * $Id: usbmouse.c,v 1.1 2004-09-13 15:04:47 giacomo Exp $ |
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| 3 | * |
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| 4 | * Copyright (c) 1999-2001 Vojtech Pavlik |
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| 5 | * |
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| 6 | * USB HIDBP Mouse support |
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| 7 | */ |
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| 8 | |||
| 9 | /* |
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| 10 | * This program is free software; you can redistribute it and/or modify |
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| 11 | * it under the terms of the GNU General Public License as published by |
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| 12 | * the Free Software Foundation; either version 2 of the License, or |
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| 13 | * (at your option) any later version. |
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| 14 | * |
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| 15 | * This program is distributed in the hope that it will be useful, |
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| 16 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
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| 17 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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| 18 | * GNU General Public License for more details. |
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| 19 | * |
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| 20 | * You should have received a copy of the GNU General Public License |
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| 21 | * along with this program; if not, write to the Free Software |
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| 22 | * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA |
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| 23 | * |
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| 24 | * Should you need to contact me, the author, you can do so either by |
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| 25 | * e-mail - mail your message to <vojtech@ucw.cz>, or by paper mail: |
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| 26 | * Vojtech Pavlik, Simunkova 1594, Prague 8, 182 00 Czech Republic |
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| 27 | */ |
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| 28 | |||
| 29 | #include <linux/kernel.h> |
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| 30 | #include <linux/slab.h> |
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| 31 | #include <linux/input.h> |
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| 32 | #include <linux/module.h> |
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| 33 | #include <linux/init.h> |
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| 34 | #include <linux/usb.h> |
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| 35 | |||
| 36 | /* |
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| 37 | * Version Information |
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| 38 | */ |
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| 39 | #define DRIVER_VERSION "v1.6" |
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| 40 | #define DRIVER_AUTHOR "Vojtech Pavlik <vojtech@ucw.cz>" |
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| 41 | #define DRIVER_DESC "USB HID Boot Protocol mouse driver" |
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| 42 | #define DRIVER_LICENSE "GPL" |
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| 43 | |||
| 44 | MODULE_AUTHOR(DRIVER_AUTHOR); |
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| 45 | MODULE_DESCRIPTION(DRIVER_DESC); |
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| 46 | MODULE_LICENSE(DRIVER_LICENSE); |
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| 47 | |||
| 48 | struct usb_mouse { |
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| 49 | char name[128]; |
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| 50 | char phys[64]; |
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| 51 | struct usb_device *usbdev; |
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| 52 | struct input_dev dev; |
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| 53 | struct urb *irq; |
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| 54 | int open; |
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| 55 | |||
| 56 | signed char *data; |
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| 57 | dma_addr_t data_dma; |
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| 58 | }; |
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| 59 | |||
| 60 | static void usb_mouse_irq(struct urb *urb, struct pt_regs *regs) |
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| 61 | { |
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| 62 | struct usb_mouse *mouse = urb->context; |
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| 63 | signed char *data = mouse->data; |
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| 64 | struct input_dev *dev = &mouse->dev; |
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| 65 | int status; |
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| 66 | |||
| 67 | switch (urb->status) { |
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| 68 | case 0: /* success */ |
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| 69 | break; |
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| 70 | case -ECONNRESET: /* unlink */ |
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| 71 | case -ENOENT: |
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| 72 | case -ESHUTDOWN: |
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| 73 | return; |
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| 74 | /* -EPIPE: should clear the halt */ |
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| 75 | default: /* error */ |
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| 76 | goto resubmit; |
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| 77 | } |
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| 78 | |||
| 79 | input_regs(dev, regs); |
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| 80 | |||
| 81 | input_report_key(dev, BTN_LEFT, data[0] & 0x01); |
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| 82 | input_report_key(dev, BTN_RIGHT, data[0] & 0x02); |
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| 83 | input_report_key(dev, BTN_MIDDLE, data[0] & 0x04); |
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| 84 | input_report_key(dev, BTN_SIDE, data[0] & 0x08); |
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| 85 | input_report_key(dev, BTN_EXTRA, data[0] & 0x10); |
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| 86 | |||
| 87 | input_report_rel(dev, REL_X, data[1]); |
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| 88 | input_report_rel(dev, REL_Y, data[2]); |
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| 89 | input_report_rel(dev, REL_WHEEL, data[3]); |
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| 90 | |||
| 91 | input_sync(dev); |
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| 92 | resubmit: |
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| 93 | status = usb_submit_urb (urb, SLAB_ATOMIC); |
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| 94 | if (status) |
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| 95 | err ("can't resubmit intr, %s-%s/input0, status %d", |
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| 96 | mouse->usbdev->bus->bus_name, |
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| 97 | mouse->usbdev->devpath, status); |
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| 98 | } |
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| 99 | |||
| 100 | static int usb_mouse_open(struct input_dev *dev) |
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| 101 | { |
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| 102 | struct usb_mouse *mouse = dev->private; |
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| 103 | |||
| 104 | if (mouse->open++) |
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| 105 | return 0; |
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| 106 | |||
| 107 | mouse->irq->dev = mouse->usbdev; |
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| 108 | if (usb_submit_urb(mouse->irq, GFP_KERNEL)) { |
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| 109 | mouse->open--; |
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| 110 | return -EIO; |
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| 111 | } |
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| 112 | |||
| 113 | return 0; |
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| 114 | } |
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| 115 | |||
| 116 | static void usb_mouse_close(struct input_dev *dev) |
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| 117 | { |
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| 118 | struct usb_mouse *mouse = dev->private; |
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| 119 | |||
| 120 | if (!--mouse->open) |
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| 121 | usb_unlink_urb(mouse->irq); |
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| 122 | } |
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| 123 | |||
| 124 | static int usb_mouse_probe(struct usb_interface * intf, const struct usb_device_id * id) |
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| 125 | { |
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| 126 | struct usb_device * dev = interface_to_usbdev(intf); |
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| 127 | struct usb_host_interface *interface; |
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| 128 | struct usb_endpoint_descriptor *endpoint; |
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| 129 | struct usb_mouse *mouse; |
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| 130 | int pipe, maxp; |
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| 131 | char path[64]; |
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| 132 | char *buf; |
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| 133 | |||
| 134 | interface = &intf->altsetting[intf->act_altsetting]; |
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| 135 | |||
| 136 | if (interface->desc.bNumEndpoints != 1) |
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| 137 | return -ENODEV; |
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| 138 | |||
| 139 | endpoint = &interface->endpoint[0].desc; |
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| 140 | if (!(endpoint->bEndpointAddress & 0x80)) |
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| 141 | return -ENODEV; |
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| 142 | if ((endpoint->bmAttributes & 3) != 3) |
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| 143 | return -ENODEV; |
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| 144 | |||
| 145 | pipe = usb_rcvintpipe(dev, endpoint->bEndpointAddress); |
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| 146 | maxp = usb_maxpacket(dev, pipe, usb_pipeout(pipe)); |
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| 147 | |||
| 148 | if (!(mouse = kmalloc(sizeof(struct usb_mouse), GFP_KERNEL))) |
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| 149 | return -ENOMEM; |
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| 150 | memset(mouse, 0, sizeof(struct usb_mouse)); |
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| 151 | |||
| 152 | mouse->data = usb_buffer_alloc(dev, 8, SLAB_ATOMIC, &mouse->data_dma); |
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| 153 | if (!mouse->data) { |
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| 154 | kfree(mouse); |
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| 155 | return -ENOMEM; |
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| 156 | } |
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| 157 | |||
| 158 | mouse->irq = usb_alloc_urb(0, GFP_KERNEL); |
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| 159 | if (!mouse->irq) { |
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| 160 | usb_buffer_free(dev, 8, mouse->data, mouse->data_dma); |
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| 161 | kfree(mouse); |
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| 162 | return -ENODEV; |
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| 163 | } |
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| 164 | |||
| 165 | mouse->usbdev = dev; |
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| 166 | |||
| 167 | mouse->dev.evbit[0] = BIT(EV_KEY) | BIT(EV_REL); |
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| 168 | mouse->dev.keybit[LONG(BTN_MOUSE)] = BIT(BTN_LEFT) | BIT(BTN_RIGHT) | BIT(BTN_MIDDLE); |
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| 169 | mouse->dev.relbit[0] = BIT(REL_X) | BIT(REL_Y); |
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| 170 | mouse->dev.keybit[LONG(BTN_MOUSE)] |= BIT(BTN_SIDE) | BIT(BTN_EXTRA); |
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| 171 | mouse->dev.relbit[0] |= BIT(REL_WHEEL); |
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| 172 | |||
| 173 | mouse->dev.private = mouse; |
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| 174 | mouse->dev.open = usb_mouse_open; |
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| 175 | mouse->dev.close = usb_mouse_close; |
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| 176 | |||
| 177 | usb_make_path(dev, path, 64); |
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| 178 | sprintf26(mouse->phys, "%s/input0", path); |
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| 179 | |||
| 180 | mouse->dev.name = mouse->name; |
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| 181 | mouse->dev.phys = mouse->phys; |
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| 182 | mouse->dev.id.bustype = BUS_USB; |
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| 183 | mouse->dev.id.vendor = dev->descriptor.idVendor; |
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| 184 | mouse->dev.id.product = dev->descriptor.idProduct; |
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| 185 | mouse->dev.id.version = dev->descriptor.bcdDevice; |
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| 186 | |||
| 187 | if (!(buf = kmalloc(63, GFP_KERNEL))) { |
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| 188 | usb_buffer_free(dev, 8, mouse->data, mouse->data_dma); |
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| 189 | kfree(mouse); |
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| 190 | return -ENOMEM; |
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| 191 | } |
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| 192 | |||
| 193 | if (dev->descriptor.iManufacturer && |
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| 194 | usb_string(dev, dev->descriptor.iManufacturer, buf, 63) > 0) |
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| 195 | strcat(mouse->name, buf); |
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| 196 | if (dev->descriptor.iProduct && |
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| 197 | usb_string(dev, dev->descriptor.iProduct, buf, 63) > 0) |
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| 198 | sprintf26(mouse->name, "%s %s", mouse->name, buf); |
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| 199 | |||
| 200 | if (!strlen(mouse->name)) |
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| 201 | sprintf26(mouse->name, "USB HIDBP Mouse %04x:%04x", |
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| 202 | mouse->dev.id.vendor, mouse->dev.id.product); |
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| 203 | |||
| 204 | kfree(buf); |
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| 205 | |||
| 206 | usb_fill_int_urb(mouse->irq, dev, pipe, mouse->data, |
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| 207 | (maxp > 8 ? 8 : maxp), |
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| 208 | usb_mouse_irq, mouse, endpoint->bInterval); |
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| 209 | mouse->irq->transfer_dma = mouse->data_dma; |
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| 210 | mouse->irq->transfer_flags |= URB_NO_TRANSFER_DMA_MAP; |
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| 211 | |||
| 212 | input_register_device(&mouse->dev); |
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| 213 | printk(KERN_INFO "input: %s on %s\n", mouse->name, path); |
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| 214 | |||
| 215 | usb_set_intfdata(intf, mouse); |
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| 216 | return 0; |
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| 217 | } |
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| 218 | |||
| 219 | static void usb_mouse_disconnect(struct usb_interface *intf) |
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| 220 | { |
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| 221 | struct usb_mouse *mouse = usb_get_intfdata (intf); |
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| 222 | |||
| 223 | usb_set_intfdata(intf, NULL); |
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| 224 | if (mouse) { |
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| 225 | usb_unlink_urb(mouse->irq); |
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| 226 | input_unregister_device(&mouse->dev); |
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| 227 | usb_free_urb(mouse->irq); |
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| 228 | usb_buffer_free(interface_to_usbdev(intf), 8, mouse->data, mouse->data_dma); |
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| 229 | kfree(mouse); |
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| 230 | } |
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| 231 | } |
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| 232 | |||
| 233 | static struct usb_device_id usb_mouse_id_table [] = { |
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| 234 | { USB_INTERFACE_INFO(3, 1, 2) }, |
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| 235 | { } /* Terminating entry */ |
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| 236 | }; |
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| 237 | |||
| 238 | MODULE_DEVICE_TABLE (usb, usb_mouse_id_table); |
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| 239 | |||
| 240 | static struct usb_driver usb_mouse_driver = { |
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| 241 | .owner = THIS_MODULE, |
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| 242 | .name = "usbmouse", |
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| 243 | .probe = usb_mouse_probe, |
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| 244 | .disconnect = usb_mouse_disconnect, |
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| 245 | .id_table = usb_mouse_id_table, |
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| 246 | }; |
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| 247 | |||
| 248 | /*static*/ int __init usb_mouse_init(void) |
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| 249 | { |
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| 250 | int retval = usb_register(&usb_mouse_driver); |
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| 251 | if (retval == 0) |
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| 252 | info(DRIVER_VERSION ":" DRIVER_DESC); |
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| 253 | return retval; |
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| 254 | } |
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| 255 | |||
| 256 | /*static*/ void __exit usb_mouse_exit(void) |
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| 257 | { |
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| 258 | usb_deregister(&usb_mouse_driver); |
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| 259 | } |
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| 260 | |||
| 261 | module_init(usb_mouse_init); |
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| 262 | module_exit(usb_mouse_exit); |