Stephane VOLTZ | 5388054 | 2005-06-06 02:22:37 -0500 | [diff] [blame] | 1 | /* |
| 2 | * Copyright (c) 2001-2005 Edouard TISSERANT <edouard.tisserant@wanadoo.fr> |
| 3 | * Copyright (c) 2004-2005 Stephane VOLTZ <svoltz@numericable.fr> |
| 4 | * |
| 5 | * USB Acecad "Acecad Flair" tablet support |
| 6 | * |
| 7 | * Changelog: |
| 8 | * v3.2 - Added sysfs support |
| 9 | */ |
| 10 | |
| 11 | /* |
| 12 | * This program is free software; you can redistribute it and/or modify |
| 13 | * it under the terms of the GNU General Public License as published by |
| 14 | * the Free Software Foundation; either version 2 of the License, or |
| 15 | * (at your option) any later version. |
| 16 | * |
| 17 | * This program is distributed in the hope that it will be useful, |
| 18 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 19 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 20 | * GNU General Public License for more details. |
| 21 | * |
| 22 | * You should have received a copy of the GNU General Public License |
| 23 | * along with this program; if not, write to the Free Software |
| 24 | * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA |
| 25 | * |
| 26 | */ |
| 27 | |
| 28 | #include <linux/kernel.h> |
| 29 | #include <linux/slab.h> |
| 30 | #include <linux/input.h> |
| 31 | #include <linux/module.h> |
| 32 | #include <linux/init.h> |
| 33 | #include <linux/usb.h> |
Dmitry Torokhov | 16a334c | 2005-06-30 00:49:08 -0500 | [diff] [blame] | 34 | #include <linux/usb_input.h> |
Stephane VOLTZ | 5388054 | 2005-06-06 02:22:37 -0500 | [diff] [blame] | 35 | |
| 36 | /* |
| 37 | * Version Information |
| 38 | */ |
| 39 | #define DRIVER_VERSION "v3.2" |
| 40 | #define DRIVER_DESC "USB Acecad Flair tablet driver" |
| 41 | #define DRIVER_LICENSE "GPL" |
| 42 | #define DRIVER_AUTHOR "Edouard TISSERANT <edouard.tisserant@wanadoo.fr>" |
| 43 | |
| 44 | MODULE_AUTHOR(DRIVER_AUTHOR); |
| 45 | MODULE_DESCRIPTION(DRIVER_DESC); |
| 46 | MODULE_LICENSE(DRIVER_LICENSE); |
| 47 | |
| 48 | #define USB_VENDOR_ID_ACECAD 0x0460 |
| 49 | #define USB_DEVICE_ID_FLAIR 0x0004 |
| 50 | #define USB_DEVICE_ID_302 0x0008 |
| 51 | |
| 52 | struct usb_acecad { |
| 53 | char name[128]; |
| 54 | char phys[64]; |
| 55 | struct usb_device *usbdev; |
| 56 | struct input_dev dev; |
| 57 | struct urb *irq; |
| 58 | |
| 59 | signed char *data; |
| 60 | dma_addr_t data_dma; |
| 61 | }; |
| 62 | |
| 63 | static void usb_acecad_irq(struct urb *urb, struct pt_regs *regs) |
| 64 | { |
| 65 | struct usb_acecad *acecad = urb->context; |
| 66 | unsigned char *data = acecad->data; |
| 67 | struct input_dev *dev = &acecad->dev; |
| 68 | int prox, status; |
| 69 | |
| 70 | switch (urb->status) { |
| 71 | case 0: |
| 72 | /* success */ |
| 73 | break; |
| 74 | case -ECONNRESET: |
| 75 | case -ENOENT: |
| 76 | case -ESHUTDOWN: |
| 77 | /* this urb is terminated, clean up */ |
| 78 | dbg("%s - urb shutting down with status: %d", __FUNCTION__, urb->status); |
| 79 | return; |
| 80 | default: |
| 81 | dbg("%s - nonzero urb status received: %d", __FUNCTION__, urb->status); |
| 82 | goto resubmit; |
| 83 | } |
| 84 | |
| 85 | prox = (data[0] & 0x04) >> 2; |
| 86 | input_report_key(dev, BTN_TOOL_PEN, prox); |
| 87 | |
| 88 | if (prox) { |
| 89 | int x = data[1] | (data[2] << 8); |
| 90 | int y = data[3] | (data[4] << 8); |
Dmitry Torokhov | c27a748 | 2005-06-30 00:48:51 -0500 | [diff] [blame] | 91 | /* Pressure should compute the same way for flair and 302 */ |
| 92 | int pressure = data[5] | (data[6] << 8); |
Stephane VOLTZ | 5388054 | 2005-06-06 02:22:37 -0500 | [diff] [blame] | 93 | int touch = data[0] & 0x01; |
| 94 | int stylus = (data[0] & 0x10) >> 4; |
| 95 | int stylus2 = (data[0] & 0x20) >> 5; |
| 96 | input_report_abs(dev, ABS_X, x); |
| 97 | input_report_abs(dev, ABS_Y, y); |
| 98 | input_report_abs(dev, ABS_PRESSURE, pressure); |
| 99 | input_report_key(dev, BTN_TOUCH, touch); |
| 100 | input_report_key(dev, BTN_STYLUS, stylus); |
| 101 | input_report_key(dev, BTN_STYLUS2, stylus2); |
| 102 | } |
| 103 | |
| 104 | /* event termination */ |
| 105 | input_sync(dev); |
| 106 | |
| 107 | resubmit: |
Dmitry Torokhov | c27a748 | 2005-06-30 00:48:51 -0500 | [diff] [blame] | 108 | status = usb_submit_urb(urb, GFP_ATOMIC); |
Stephane VOLTZ | 5388054 | 2005-06-06 02:22:37 -0500 | [diff] [blame] | 109 | if (status) |
Dmitry Torokhov | c27a748 | 2005-06-30 00:48:51 -0500 | [diff] [blame] | 110 | err("can't resubmit intr, %s-%s/input0, status %d", |
Stephane VOLTZ | 5388054 | 2005-06-06 02:22:37 -0500 | [diff] [blame] | 111 | acecad->usbdev->bus->bus_name, acecad->usbdev->devpath, status); |
| 112 | } |
| 113 | |
| 114 | static int usb_acecad_open(struct input_dev *dev) |
| 115 | { |
| 116 | struct usb_acecad *acecad = dev->private; |
| 117 | |
| 118 | acecad->irq->dev = acecad->usbdev; |
| 119 | if (usb_submit_urb(acecad->irq, GFP_KERNEL)) |
| 120 | return -EIO; |
| 121 | |
| 122 | return 0; |
| 123 | } |
| 124 | |
| 125 | static void usb_acecad_close(struct input_dev *dev) |
| 126 | { |
| 127 | struct usb_acecad *acecad = dev->private; |
| 128 | |
| 129 | usb_kill_urb(acecad->irq); |
| 130 | } |
| 131 | |
| 132 | static int usb_acecad_probe(struct usb_interface *intf, const struct usb_device_id *id) |
| 133 | { |
| 134 | struct usb_device *dev = interface_to_usbdev(intf); |
| 135 | struct usb_host_interface *interface = intf->cur_altsetting; |
| 136 | struct usb_endpoint_descriptor *endpoint; |
| 137 | struct usb_acecad *acecad; |
| 138 | int pipe, maxp; |
| 139 | char path[64]; |
| 140 | |
| 141 | if (interface->desc.bNumEndpoints != 1) |
| 142 | return -ENODEV; |
| 143 | |
| 144 | endpoint = &interface->endpoint[0].desc; |
| 145 | |
| 146 | if (!(endpoint->bEndpointAddress & 0x80)) |
| 147 | return -ENODEV; |
| 148 | |
| 149 | if ((endpoint->bmAttributes & 3) != 3) |
| 150 | return -ENODEV; |
| 151 | |
| 152 | pipe = usb_rcvintpipe(dev, endpoint->bEndpointAddress); |
| 153 | maxp = usb_maxpacket(dev, pipe, usb_pipeout(pipe)); |
| 154 | |
| 155 | acecad = kcalloc(1, sizeof(struct usb_acecad), GFP_KERNEL); |
| 156 | if (!acecad) |
| 157 | return -ENOMEM; |
| 158 | |
| 159 | acecad->data = usb_buffer_alloc(dev, 8, SLAB_KERNEL, &acecad->data_dma); |
| 160 | if (!acecad->data) |
| 161 | goto fail1; |
| 162 | |
| 163 | acecad->irq = usb_alloc_urb(0, GFP_KERNEL); |
| 164 | if (!acecad->irq) |
| 165 | goto fail2; |
| 166 | |
| 167 | if (dev->manufacturer) |
| 168 | strlcpy(acecad->name, dev->manufacturer, sizeof(acecad->name)); |
| 169 | |
| 170 | if (dev->product) { |
| 171 | if (dev->manufacturer) |
| 172 | strlcat(acecad->name, " ", sizeof(acecad->name)); |
| 173 | strlcat(acecad->name, dev->product, sizeof(acecad->name)); |
| 174 | } |
| 175 | |
| 176 | usb_make_path(dev, path, sizeof(path)); |
| 177 | snprintf(acecad->phys, sizeof(acecad->phys), "%s/input0", path); |
| 178 | |
| 179 | acecad->usbdev = dev; |
| 180 | |
| 181 | acecad->dev.evbit[0] = BIT(EV_KEY) | BIT(EV_ABS); |
| 182 | acecad->dev.absbit[0] = BIT(ABS_X) | BIT(ABS_Y) | BIT(ABS_PRESSURE); |
| 183 | acecad->dev.keybit[LONG(BTN_LEFT)] = BIT(BTN_LEFT) | BIT(BTN_RIGHT) | BIT(BTN_MIDDLE); |
| 184 | acecad->dev.keybit[LONG(BTN_DIGI)] = BIT(BTN_TOOL_PEN) |BIT(BTN_TOUCH) | BIT(BTN_STYLUS) | BIT(BTN_STYLUS2); |
| 185 | |
| 186 | switch (id->driver_info) { |
| 187 | case 0: |
| 188 | acecad->dev.absmax[ABS_X] = 5000; |
| 189 | acecad->dev.absmax[ABS_Y] = 3750; |
| 190 | acecad->dev.absmax[ABS_PRESSURE] = 512; |
| 191 | if (!strlen(acecad->name)) |
| 192 | snprintf(acecad->name, sizeof(acecad->name), |
| 193 | "USB Acecad Flair Tablet %04x:%04x", |
| 194 | dev->descriptor.idVendor, dev->descriptor.idProduct); |
| 195 | break; |
| 196 | case 1: |
| 197 | acecad->dev.absmax[ABS_X] = 3000; |
| 198 | acecad->dev.absmax[ABS_Y] = 2250; |
| 199 | acecad->dev.absmax[ABS_PRESSURE] = 1024; |
| 200 | if (!strlen(acecad->name)) |
| 201 | snprintf(acecad->name, sizeof(acecad->name), |
| 202 | "USB Acecad 302 Tablet %04x:%04x", |
| 203 | dev->descriptor.idVendor, dev->descriptor.idProduct); |
| 204 | break; |
| 205 | } |
| 206 | |
| 207 | acecad->dev.absfuzz[ABS_X] = 4; |
| 208 | acecad->dev.absfuzz[ABS_Y] = 4; |
| 209 | |
| 210 | acecad->dev.private = acecad; |
| 211 | acecad->dev.open = usb_acecad_open; |
| 212 | acecad->dev.close = usb_acecad_close; |
| 213 | |
| 214 | acecad->dev.name = acecad->name; |
| 215 | acecad->dev.phys = acecad->phys; |
Dmitry Torokhov | 16a334c | 2005-06-30 00:49:08 -0500 | [diff] [blame] | 216 | usb_to_input_id(dev, &acecad->dev.id); |
Stephane VOLTZ | 5388054 | 2005-06-06 02:22:37 -0500 | [diff] [blame] | 217 | acecad->dev.dev = &intf->dev; |
| 218 | |
| 219 | usb_fill_int_urb(acecad->irq, dev, pipe, |
| 220 | acecad->data, maxp > 8 ? 8 : maxp, |
| 221 | usb_acecad_irq, acecad, endpoint->bInterval); |
| 222 | acecad->irq->transfer_dma = acecad->data_dma; |
| 223 | acecad->irq->transfer_flags |= URB_NO_TRANSFER_DMA_MAP; |
| 224 | |
| 225 | input_register_device(&acecad->dev); |
| 226 | |
| 227 | printk(KERN_INFO "input: %s with packet size %d on %s\n", |
| 228 | acecad->name, maxp, path); |
| 229 | |
| 230 | usb_set_intfdata(intf, acecad); |
| 231 | |
| 232 | return 0; |
| 233 | |
| 234 | fail2: usb_buffer_free(dev, 8, acecad->data, acecad->data_dma); |
| 235 | fail1: kfree(acecad); |
| 236 | return -ENOMEM; |
| 237 | } |
| 238 | |
| 239 | static void usb_acecad_disconnect(struct usb_interface *intf) |
| 240 | { |
| 241 | struct usb_acecad *acecad = usb_get_intfdata(intf); |
| 242 | |
| 243 | usb_set_intfdata(intf, NULL); |
| 244 | if (acecad) { |
| 245 | usb_kill_urb(acecad->irq); |
| 246 | input_unregister_device(&acecad->dev); |
| 247 | usb_free_urb(acecad->irq); |
| 248 | usb_buffer_free(interface_to_usbdev(intf), 10, acecad->data, acecad->data_dma); |
| 249 | kfree(acecad); |
| 250 | } |
| 251 | } |
| 252 | |
| 253 | static struct usb_device_id usb_acecad_id_table [] = { |
| 254 | { USB_DEVICE(USB_VENDOR_ID_ACECAD, USB_DEVICE_ID_FLAIR), .driver_info = 0 }, |
| 255 | { USB_DEVICE(USB_VENDOR_ID_ACECAD, USB_DEVICE_ID_302), .driver_info = 1 }, |
| 256 | { } |
| 257 | }; |
| 258 | |
| 259 | MODULE_DEVICE_TABLE(usb, usb_acecad_id_table); |
| 260 | |
| 261 | static struct usb_driver usb_acecad_driver = { |
| 262 | .owner = THIS_MODULE, |
| 263 | .name = "usb_acecad", |
| 264 | .probe = usb_acecad_probe, |
| 265 | .disconnect = usb_acecad_disconnect, |
| 266 | .id_table = usb_acecad_id_table, |
| 267 | }; |
| 268 | |
| 269 | static int __init usb_acecad_init(void) |
| 270 | { |
| 271 | int result = usb_register(&usb_acecad_driver); |
| 272 | if (result == 0) |
| 273 | info(DRIVER_VERSION ":" DRIVER_DESC); |
| 274 | return result; |
| 275 | } |
| 276 | |
| 277 | static void __exit usb_acecad_exit(void) |
| 278 | { |
| 279 | usb_deregister(&usb_acecad_driver); |
| 280 | } |
| 281 | |
| 282 | module_init(usb_acecad_init); |
| 283 | module_exit(usb_acecad_exit); |