Xing Wei | bba5394 | 2010-09-01 23:25:35 -0700 | [diff] [blame] | 1 | /* |
| 2 | * USB Hanwang tablet support |
| 3 | * |
| 4 | * Copyright (c) 2010 Xing Wei <weixing@hanwang.com.cn> |
| 5 | * |
| 6 | */ |
| 7 | |
| 8 | /* |
| 9 | * This program is free software; you can redistribute it and/or modify |
| 10 | * it under the terms of the GNU General Public License as published by |
| 11 | * the Free Software Foundation; either version 2 of the License, or |
| 12 | * (at your option) any later version. |
| 13 | * |
| 14 | * This program is distributed in the hope that it will be useful, |
| 15 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 16 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 17 | * GNU General Public License for more details. |
| 18 | * |
| 19 | * You should have received a copy of the GNU General Public License |
| 20 | * along with this program; if not, write to the Free Software |
| 21 | * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA |
| 22 | * |
| 23 | */ |
| 24 | |
| 25 | #include <linux/types.h> |
| 26 | #include <linux/kernel.h> |
| 27 | #include <linux/slab.h> |
| 28 | #include <linux/module.h> |
| 29 | #include <linux/init.h> |
| 30 | #include <linux/usb/input.h> |
| 31 | |
| 32 | #define DRIVER_AUTHOR "Xing Wei <weixing@hanwang.com.cn>" |
| 33 | #define DRIVER_DESC "USB Hanwang tablet driver" |
| 34 | #define DRIVER_LICENSE "GPL" |
| 35 | |
| 36 | MODULE_AUTHOR(DRIVER_AUTHOR); |
| 37 | MODULE_DESCRIPTION(DRIVER_DESC); |
| 38 | MODULE_LICENSE(DRIVER_LICENSE); |
| 39 | |
| 40 | #define USB_VENDOR_ID_HANWANG 0x0b57 |
| 41 | #define HANWANG_TABLET_INT_CLASS 0x0003 |
| 42 | #define HANWANG_TABLET_INT_SUB_CLASS 0x0001 |
| 43 | #define HANWANG_TABLET_INT_PROTOCOL 0x0002 |
| 44 | |
Xing Wei | 727eeb7 | 2010-09-29 18:25:20 -0700 | [diff] [blame] | 45 | #define ART_MASTER_PKGLEN_MAX 10 |
Xing Wei | bba5394 | 2010-09-01 23:25:35 -0700 | [diff] [blame] | 46 | |
Xing Wei | 24dd3b5 | 2010-09-12 00:24:17 -0700 | [diff] [blame] | 47 | /* device IDs */ |
| 48 | #define STYLUS_DEVICE_ID 0x02 |
| 49 | #define TOUCH_DEVICE_ID 0x03 |
| 50 | #define CURSOR_DEVICE_ID 0x06 |
| 51 | #define ERASER_DEVICE_ID 0x0A |
| 52 | #define PAD_DEVICE_ID 0x0F |
| 53 | |
Xing Wei | bba5394 | 2010-09-01 23:25:35 -0700 | [diff] [blame] | 54 | /* match vendor and interface info */ |
| 55 | #define HANWANG_TABLET_DEVICE(vend, cl, sc, pr) \ |
| 56 | .match_flags = USB_DEVICE_ID_MATCH_VENDOR \ |
| 57 | | USB_DEVICE_ID_MATCH_INT_INFO, \ |
| 58 | .idVendor = (vend), \ |
| 59 | .bInterfaceClass = (cl), \ |
| 60 | .bInterfaceSubClass = (sc), \ |
| 61 | .bInterfaceProtocol = (pr) |
| 62 | |
Xing Wei | 727eeb7 | 2010-09-29 18:25:20 -0700 | [diff] [blame] | 63 | enum hanwang_tablet_type { |
| 64 | HANWANG_ART_MASTER_III, |
| 65 | HANWANG_ART_MASTER_HD, |
weixing | 8a90c03 | 2012-07-13 00:08:42 -0700 | [diff] [blame] | 66 | HANWANG_ART_MASTER_II, |
Xing Wei | 727eeb7 | 2010-09-29 18:25:20 -0700 | [diff] [blame] | 67 | }; |
| 68 | |
Xing Wei | bba5394 | 2010-09-01 23:25:35 -0700 | [diff] [blame] | 69 | struct hanwang { |
| 70 | unsigned char *data; |
| 71 | dma_addr_t data_dma; |
| 72 | struct input_dev *dev; |
| 73 | struct usb_device *usbdev; |
| 74 | struct urb *irq; |
| 75 | const struct hanwang_features *features; |
| 76 | unsigned int current_tool; |
Xing Wei | 24dd3b5 | 2010-09-12 00:24:17 -0700 | [diff] [blame] | 77 | unsigned int current_id; |
Xing Wei | bba5394 | 2010-09-01 23:25:35 -0700 | [diff] [blame] | 78 | char name[64]; |
| 79 | char phys[32]; |
| 80 | }; |
| 81 | |
| 82 | struct hanwang_features { |
| 83 | unsigned short pid; |
| 84 | char *name; |
Xing Wei | 727eeb7 | 2010-09-29 18:25:20 -0700 | [diff] [blame] | 85 | enum hanwang_tablet_type type; |
Xing Wei | bba5394 | 2010-09-01 23:25:35 -0700 | [diff] [blame] | 86 | int pkg_len; |
| 87 | int max_x; |
| 88 | int max_y; |
| 89 | int max_tilt_x; |
| 90 | int max_tilt_y; |
| 91 | int max_pressure; |
| 92 | }; |
| 93 | |
| 94 | static const struct hanwang_features features_array[] = { |
Xing Wei | 727eeb7 | 2010-09-29 18:25:20 -0700 | [diff] [blame] | 95 | { 0x8528, "Hanwang Art Master III 0906", HANWANG_ART_MASTER_III, |
| 96 | ART_MASTER_PKGLEN_MAX, 0x5757, 0x3692, 0x3f, 0x7f, 2048 }, |
| 97 | { 0x8529, "Hanwang Art Master III 0604", HANWANG_ART_MASTER_III, |
| 98 | ART_MASTER_PKGLEN_MAX, 0x3d84, 0x2672, 0x3f, 0x7f, 2048 }, |
| 99 | { 0x852a, "Hanwang Art Master III 1308", HANWANG_ART_MASTER_III, |
| 100 | ART_MASTER_PKGLEN_MAX, 0x7f00, 0x4f60, 0x3f, 0x7f, 2048 }, |
| 101 | { 0x8401, "Hanwang Art Master HD 5012", HANWANG_ART_MASTER_HD, |
| 102 | ART_MASTER_PKGLEN_MAX, 0x678e, 0x4150, 0x3f, 0x7f, 1024 }, |
weixing | 8a90c03 | 2012-07-13 00:08:42 -0700 | [diff] [blame] | 103 | { 0x8503, "Hanwang Art Master II", HANWANG_ART_MASTER_II, |
| 104 | ART_MASTER_PKGLEN_MAX, 0x27de, 0x1cfe, 0x3f, 0x7f, 1024 }, |
Xing Wei | bba5394 | 2010-09-01 23:25:35 -0700 | [diff] [blame] | 105 | }; |
| 106 | |
| 107 | static const int hw_eventtypes[] = { |
Xing Wei | 24dd3b5 | 2010-09-12 00:24:17 -0700 | [diff] [blame] | 108 | EV_KEY, EV_ABS, EV_MSC, |
Xing Wei | bba5394 | 2010-09-01 23:25:35 -0700 | [diff] [blame] | 109 | }; |
| 110 | |
| 111 | static const int hw_absevents[] = { |
Xing Wei | 24dd3b5 | 2010-09-12 00:24:17 -0700 | [diff] [blame] | 112 | ABS_X, ABS_Y, ABS_TILT_X, ABS_TILT_Y, ABS_WHEEL, |
Xing Wei | 727eeb7 | 2010-09-29 18:25:20 -0700 | [diff] [blame] | 113 | ABS_RX, ABS_RY, ABS_PRESSURE, ABS_MISC, |
Xing Wei | bba5394 | 2010-09-01 23:25:35 -0700 | [diff] [blame] | 114 | }; |
| 115 | |
| 116 | static const int hw_btnevents[] = { |
Xing Wei | 24dd3b5 | 2010-09-12 00:24:17 -0700 | [diff] [blame] | 117 | BTN_STYLUS, BTN_STYLUS2, BTN_TOOL_PEN, BTN_TOOL_RUBBER, |
| 118 | BTN_TOOL_MOUSE, BTN_TOOL_FINGER, |
| 119 | BTN_0, BTN_1, BTN_2, BTN_3, BTN_4, BTN_5, BTN_6, BTN_7, BTN_8, |
| 120 | }; |
| 121 | |
| 122 | static const int hw_mscevents[] = { |
| 123 | MSC_SERIAL, |
Xing Wei | bba5394 | 2010-09-01 23:25:35 -0700 | [diff] [blame] | 124 | }; |
| 125 | |
| 126 | static void hanwang_parse_packet(struct hanwang *hanwang) |
| 127 | { |
| 128 | unsigned char *data = hanwang->data; |
| 129 | struct input_dev *input_dev = hanwang->dev; |
| 130 | struct usb_device *dev = hanwang->usbdev; |
Xing Wei | 727eeb7 | 2010-09-29 18:25:20 -0700 | [diff] [blame] | 131 | enum hanwang_tablet_type type = hanwang->features->type; |
Xing Wei | bba5394 | 2010-09-01 23:25:35 -0700 | [diff] [blame] | 132 | int i; |
weixing | 8a90c03 | 2012-07-13 00:08:42 -0700 | [diff] [blame] | 133 | u16 p; |
| 134 | |
| 135 | if (type == HANWANG_ART_MASTER_II) { |
| 136 | hanwang->current_tool = BTN_TOOL_PEN; |
| 137 | hanwang->current_id = STYLUS_DEVICE_ID; |
| 138 | } |
Xing Wei | bba5394 | 2010-09-01 23:25:35 -0700 | [diff] [blame] | 139 | |
| 140 | switch (data[0]) { |
| 141 | case 0x02: /* data packet */ |
| 142 | switch (data[1]) { |
| 143 | case 0x80: /* tool prox out */ |
weixing | 8a90c03 | 2012-07-13 00:08:42 -0700 | [diff] [blame] | 144 | if (type != HANWANG_ART_MASTER_II) { |
| 145 | hanwang->current_id = 0; |
| 146 | input_report_key(input_dev, |
| 147 | hanwang->current_tool, 0); |
| 148 | } |
| 149 | break; |
| 150 | |
| 151 | case 0x00: /* artmaster ii pen leave */ |
| 152 | if (type == HANWANG_ART_MASTER_II) { |
| 153 | hanwang->current_id = 0; |
| 154 | input_report_key(input_dev, |
| 155 | hanwang->current_tool, 0); |
| 156 | } |
Xing Wei | bba5394 | 2010-09-01 23:25:35 -0700 | [diff] [blame] | 157 | break; |
| 158 | |
| 159 | case 0xc2: /* first time tool prox in */ |
| 160 | switch (data[3] & 0xf0) { |
Xing Wei | 727eeb7 | 2010-09-29 18:25:20 -0700 | [diff] [blame] | 161 | case 0x20: /* art_master III */ |
| 162 | case 0x30: /* art_master_HD */ |
Xing Wei | 24dd3b5 | 2010-09-12 00:24:17 -0700 | [diff] [blame] | 163 | hanwang->current_id = STYLUS_DEVICE_ID; |
Xing Wei | bba5394 | 2010-09-01 23:25:35 -0700 | [diff] [blame] | 164 | hanwang->current_tool = BTN_TOOL_PEN; |
| 165 | input_report_key(input_dev, BTN_TOOL_PEN, 1); |
| 166 | break; |
Xing Wei | 727eeb7 | 2010-09-29 18:25:20 -0700 | [diff] [blame] | 167 | case 0xa0: /* art_master III */ |
| 168 | case 0xb0: /* art_master_HD */ |
Xing Wei | 24dd3b5 | 2010-09-12 00:24:17 -0700 | [diff] [blame] | 169 | hanwang->current_id = ERASER_DEVICE_ID; |
Xing Wei | bba5394 | 2010-09-01 23:25:35 -0700 | [diff] [blame] | 170 | hanwang->current_tool = BTN_TOOL_RUBBER; |
| 171 | input_report_key(input_dev, BTN_TOOL_RUBBER, 1); |
| 172 | break; |
| 173 | default: |
Xing Wei | 24dd3b5 | 2010-09-12 00:24:17 -0700 | [diff] [blame] | 174 | hanwang->current_id = 0; |
Xing Wei | bba5394 | 2010-09-01 23:25:35 -0700 | [diff] [blame] | 175 | dev_dbg(&dev->dev, |
weixing | 8a90c03 | 2012-07-13 00:08:42 -0700 | [diff] [blame] | 176 | "unknown tablet tool %02x\n", data[0]); |
Xing Wei | bba5394 | 2010-09-01 23:25:35 -0700 | [diff] [blame] | 177 | break; |
| 178 | } |
| 179 | break; |
| 180 | |
| 181 | default: /* tool data packet */ |
Xing Wei | 727eeb7 | 2010-09-29 18:25:20 -0700 | [diff] [blame] | 182 | switch (type) { |
| 183 | case HANWANG_ART_MASTER_III: |
| 184 | p = (data[6] << 3) | |
| 185 | ((data[7] & 0xc0) >> 5) | |
| 186 | (data[1] & 0x01); |
| 187 | break; |
| 188 | |
| 189 | case HANWANG_ART_MASTER_HD: |
weixing | 8a90c03 | 2012-07-13 00:08:42 -0700 | [diff] [blame] | 190 | case HANWANG_ART_MASTER_II: |
Xing Wei | 727eeb7 | 2010-09-29 18:25:20 -0700 | [diff] [blame] | 191 | p = (data[7] >> 6) | (data[6] << 2); |
| 192 | break; |
| 193 | |
| 194 | default: |
| 195 | p = 0; |
| 196 | break; |
| 197 | } |
| 198 | |
Xing Wei | bba5394 | 2010-09-01 23:25:35 -0700 | [diff] [blame] | 199 | input_report_abs(input_dev, ABS_X, |
weixing | 8a90c03 | 2012-07-13 00:08:42 -0700 | [diff] [blame] | 200 | be16_to_cpup((__be16 *)&data[2])); |
Xing Wei | bba5394 | 2010-09-01 23:25:35 -0700 | [diff] [blame] | 201 | input_report_abs(input_dev, ABS_Y, |
weixing | 8a90c03 | 2012-07-13 00:08:42 -0700 | [diff] [blame] | 202 | be16_to_cpup((__be16 *)&data[4])); |
| 203 | input_report_abs(input_dev, ABS_PRESSURE, p); |
Xing Wei | bba5394 | 2010-09-01 23:25:35 -0700 | [diff] [blame] | 204 | input_report_abs(input_dev, ABS_TILT_X, data[7] & 0x3f); |
| 205 | input_report_abs(input_dev, ABS_TILT_Y, data[8] & 0x7f); |
| 206 | input_report_key(input_dev, BTN_STYLUS, data[1] & 0x02); |
weixing | 8a90c03 | 2012-07-13 00:08:42 -0700 | [diff] [blame] | 207 | |
| 208 | if (type != HANWANG_ART_MASTER_II) |
| 209 | input_report_key(input_dev, BTN_STYLUS2, |
| 210 | data[1] & 0x04); |
| 211 | else |
| 212 | input_report_key(input_dev, BTN_TOOL_PEN, 1); |
| 213 | |
Xing Wei | bba5394 | 2010-09-01 23:25:35 -0700 | [diff] [blame] | 214 | break; |
| 215 | } |
weixing | 8a90c03 | 2012-07-13 00:08:42 -0700 | [diff] [blame] | 216 | |
Xing Wei | 24dd3b5 | 2010-09-12 00:24:17 -0700 | [diff] [blame] | 217 | input_report_abs(input_dev, ABS_MISC, hanwang->current_id); |
| 218 | input_event(input_dev, EV_MSC, MSC_SERIAL, |
| 219 | hanwang->features->pid); |
Xing Wei | bba5394 | 2010-09-01 23:25:35 -0700 | [diff] [blame] | 220 | break; |
| 221 | |
| 222 | case 0x0c: |
| 223 | /* roll wheel */ |
Xing Wei | 24dd3b5 | 2010-09-12 00:24:17 -0700 | [diff] [blame] | 224 | hanwang->current_id = PAD_DEVICE_ID; |
Xing Wei | 727eeb7 | 2010-09-29 18:25:20 -0700 | [diff] [blame] | 225 | |
| 226 | switch (type) { |
| 227 | case HANWANG_ART_MASTER_III: |
weixing | 8a90c03 | 2012-07-13 00:08:42 -0700 | [diff] [blame] | 228 | input_report_key(input_dev, BTN_TOOL_FINGER, |
| 229 | data[1] || data[2] || data[3]); |
Xing Wei | 727eeb7 | 2010-09-29 18:25:20 -0700 | [diff] [blame] | 230 | input_report_abs(input_dev, ABS_WHEEL, data[1]); |
| 231 | input_report_key(input_dev, BTN_0, data[2]); |
| 232 | for (i = 0; i < 8; i++) |
| 233 | input_report_key(input_dev, |
Xing Wei | bba5394 | 2010-09-01 23:25:35 -0700 | [diff] [blame] | 234 | BTN_1 + i, data[3] & (1 << i)); |
Xing Wei | 727eeb7 | 2010-09-29 18:25:20 -0700 | [diff] [blame] | 235 | break; |
| 236 | |
| 237 | case HANWANG_ART_MASTER_HD: |
| 238 | input_report_key(input_dev, BTN_TOOL_FINGER, data[1] || |
| 239 | data[2] || data[3] || data[4] || |
| 240 | data[5] || data[6]); |
| 241 | input_report_abs(input_dev, ABS_RX, |
| 242 | ((data[1] & 0x1f) << 8) | data[2]); |
| 243 | input_report_abs(input_dev, ABS_RY, |
| 244 | ((data[3] & 0x1f) << 8) | data[4]); |
| 245 | input_report_key(input_dev, BTN_0, data[5] & 0x01); |
| 246 | for (i = 0; i < 4; i++) { |
| 247 | input_report_key(input_dev, |
| 248 | BTN_1 + i, data[5] & (1 << i)); |
| 249 | input_report_key(input_dev, |
| 250 | BTN_5 + i, data[6] & (1 << i)); |
| 251 | } |
| 252 | break; |
weixing | 8a90c03 | 2012-07-13 00:08:42 -0700 | [diff] [blame] | 253 | |
| 254 | case HANWANG_ART_MASTER_II: |
| 255 | dev_dbg(&dev->dev, "error packet %02x\n", data[0]); |
| 256 | return; |
Xing Wei | 727eeb7 | 2010-09-29 18:25:20 -0700 | [diff] [blame] | 257 | } |
| 258 | |
Xing Wei | 24dd3b5 | 2010-09-12 00:24:17 -0700 | [diff] [blame] | 259 | input_report_abs(input_dev, ABS_MISC, hanwang->current_id); |
| 260 | input_event(input_dev, EV_MSC, MSC_SERIAL, 0xffffffff); |
Xing Wei | bba5394 | 2010-09-01 23:25:35 -0700 | [diff] [blame] | 261 | break; |
| 262 | |
| 263 | default: |
weixing | 8a90c03 | 2012-07-13 00:08:42 -0700 | [diff] [blame] | 264 | dev_dbg(&dev->dev, "error packet %02x\n", data[0]); |
Xing Wei | bba5394 | 2010-09-01 23:25:35 -0700 | [diff] [blame] | 265 | break; |
| 266 | } |
| 267 | |
| 268 | input_sync(input_dev); |
| 269 | } |
| 270 | |
| 271 | static void hanwang_irq(struct urb *urb) |
| 272 | { |
| 273 | struct hanwang *hanwang = urb->context; |
| 274 | struct usb_device *dev = hanwang->usbdev; |
| 275 | int retval; |
| 276 | |
| 277 | switch (urb->status) { |
| 278 | case 0: |
| 279 | /* success */; |
| 280 | hanwang_parse_packet(hanwang); |
| 281 | break; |
| 282 | case -ECONNRESET: |
| 283 | case -ENOENT: |
| 284 | case -ESHUTDOWN: |
| 285 | /* this urb is terminated, clean up */ |
| 286 | dev_err(&dev->dev, "%s - urb shutting down with status: %d", |
| 287 | __func__, urb->status); |
| 288 | return; |
| 289 | default: |
| 290 | dev_err(&dev->dev, "%s - nonzero urb status received: %d", |
| 291 | __func__, urb->status); |
| 292 | break; |
| 293 | } |
| 294 | |
| 295 | retval = usb_submit_urb(urb, GFP_ATOMIC); |
| 296 | if (retval) |
| 297 | dev_err(&dev->dev, "%s - usb_submit_urb failed with result %d", |
| 298 | __func__, retval); |
| 299 | } |
| 300 | |
| 301 | static int hanwang_open(struct input_dev *dev) |
| 302 | { |
| 303 | struct hanwang *hanwang = input_get_drvdata(dev); |
| 304 | |
| 305 | hanwang->irq->dev = hanwang->usbdev; |
| 306 | if (usb_submit_urb(hanwang->irq, GFP_KERNEL)) |
| 307 | return -EIO; |
| 308 | |
| 309 | return 0; |
| 310 | } |
| 311 | |
| 312 | static void hanwang_close(struct input_dev *dev) |
| 313 | { |
| 314 | struct hanwang *hanwang = input_get_drvdata(dev); |
| 315 | |
| 316 | usb_kill_urb(hanwang->irq); |
| 317 | } |
| 318 | |
| 319 | static bool get_features(struct usb_device *dev, struct hanwang *hanwang) |
| 320 | { |
| 321 | int i; |
| 322 | |
| 323 | for (i = 0; i < ARRAY_SIZE(features_array); i++) { |
| 324 | if (le16_to_cpu(dev->descriptor.idProduct) == |
| 325 | features_array[i].pid) { |
| 326 | hanwang->features = &features_array[i]; |
| 327 | return true; |
| 328 | } |
| 329 | } |
| 330 | |
| 331 | return false; |
| 332 | } |
| 333 | |
| 334 | |
| 335 | static int hanwang_probe(struct usb_interface *intf, const struct usb_device_id *id) |
| 336 | { |
| 337 | struct usb_device *dev = interface_to_usbdev(intf); |
| 338 | struct usb_endpoint_descriptor *endpoint; |
| 339 | struct hanwang *hanwang; |
| 340 | struct input_dev *input_dev; |
| 341 | int error; |
| 342 | int i; |
| 343 | |
| 344 | hanwang = kzalloc(sizeof(struct hanwang), GFP_KERNEL); |
| 345 | input_dev = input_allocate_device(); |
| 346 | if (!hanwang || !input_dev) { |
| 347 | error = -ENOMEM; |
| 348 | goto fail1; |
| 349 | } |
| 350 | |
| 351 | if (!get_features(dev, hanwang)) { |
| 352 | error = -ENXIO; |
| 353 | goto fail1; |
| 354 | } |
| 355 | |
| 356 | hanwang->data = usb_alloc_coherent(dev, hanwang->features->pkg_len, |
| 357 | GFP_KERNEL, &hanwang->data_dma); |
| 358 | if (!hanwang->data) { |
| 359 | error = -ENOMEM; |
| 360 | goto fail1; |
| 361 | } |
| 362 | |
| 363 | hanwang->irq = usb_alloc_urb(0, GFP_KERNEL); |
| 364 | if (!hanwang->irq) { |
| 365 | error = -ENOMEM; |
| 366 | goto fail2; |
| 367 | } |
| 368 | |
| 369 | hanwang->usbdev = dev; |
| 370 | hanwang->dev = input_dev; |
| 371 | |
| 372 | usb_make_path(dev, hanwang->phys, sizeof(hanwang->phys)); |
| 373 | strlcat(hanwang->phys, "/input0", sizeof(hanwang->phys)); |
| 374 | |
| 375 | strlcpy(hanwang->name, hanwang->features->name, sizeof(hanwang->name)); |
| 376 | input_dev->name = hanwang->name; |
| 377 | input_dev->phys = hanwang->phys; |
| 378 | usb_to_input_id(dev, &input_dev->id); |
| 379 | input_dev->dev.parent = &intf->dev; |
| 380 | |
| 381 | input_set_drvdata(input_dev, hanwang); |
| 382 | |
| 383 | input_dev->open = hanwang_open; |
| 384 | input_dev->close = hanwang_close; |
| 385 | |
| 386 | for (i = 0; i < ARRAY_SIZE(hw_eventtypes); ++i) |
| 387 | __set_bit(hw_eventtypes[i], input_dev->evbit); |
| 388 | |
| 389 | for (i = 0; i < ARRAY_SIZE(hw_absevents); ++i) |
| 390 | __set_bit(hw_absevents[i], input_dev->absbit); |
| 391 | |
| 392 | for (i = 0; i < ARRAY_SIZE(hw_btnevents); ++i) |
| 393 | __set_bit(hw_btnevents[i], input_dev->keybit); |
| 394 | |
Xing Wei | 24dd3b5 | 2010-09-12 00:24:17 -0700 | [diff] [blame] | 395 | for (i = 0; i < ARRAY_SIZE(hw_mscevents); ++i) |
| 396 | __set_bit(hw_mscevents[i], input_dev->mscbit); |
| 397 | |
Xing Wei | bba5394 | 2010-09-01 23:25:35 -0700 | [diff] [blame] | 398 | input_set_abs_params(input_dev, ABS_X, |
| 399 | 0, hanwang->features->max_x, 4, 0); |
| 400 | input_set_abs_params(input_dev, ABS_Y, |
| 401 | 0, hanwang->features->max_y, 4, 0); |
| 402 | input_set_abs_params(input_dev, ABS_TILT_X, |
| 403 | 0, hanwang->features->max_tilt_x, 0, 0); |
| 404 | input_set_abs_params(input_dev, ABS_TILT_Y, |
| 405 | 0, hanwang->features->max_tilt_y, 0, 0); |
| 406 | input_set_abs_params(input_dev, ABS_PRESSURE, |
| 407 | 0, hanwang->features->max_pressure, 0, 0); |
| 408 | |
| 409 | endpoint = &intf->cur_altsetting->endpoint[0].desc; |
| 410 | usb_fill_int_urb(hanwang->irq, dev, |
| 411 | usb_rcvintpipe(dev, endpoint->bEndpointAddress), |
| 412 | hanwang->data, hanwang->features->pkg_len, |
| 413 | hanwang_irq, hanwang, endpoint->bInterval); |
| 414 | hanwang->irq->transfer_dma = hanwang->data_dma; |
| 415 | hanwang->irq->transfer_flags |= URB_NO_TRANSFER_DMA_MAP; |
| 416 | |
| 417 | error = input_register_device(hanwang->dev); |
| 418 | if (error) |
| 419 | goto fail3; |
| 420 | |
| 421 | usb_set_intfdata(intf, hanwang); |
| 422 | |
| 423 | return 0; |
| 424 | |
| 425 | fail3: usb_free_urb(hanwang->irq); |
| 426 | fail2: usb_free_coherent(dev, hanwang->features->pkg_len, |
| 427 | hanwang->data, hanwang->data_dma); |
| 428 | fail1: input_free_device(input_dev); |
| 429 | kfree(hanwang); |
| 430 | return error; |
| 431 | |
| 432 | } |
| 433 | |
| 434 | static void hanwang_disconnect(struct usb_interface *intf) |
| 435 | { |
| 436 | struct hanwang *hanwang = usb_get_intfdata(intf); |
| 437 | |
| 438 | input_unregister_device(hanwang->dev); |
| 439 | usb_free_urb(hanwang->irq); |
| 440 | usb_free_coherent(interface_to_usbdev(intf), |
| 441 | hanwang->features->pkg_len, hanwang->data, |
| 442 | hanwang->data_dma); |
| 443 | kfree(hanwang); |
| 444 | usb_set_intfdata(intf, NULL); |
| 445 | } |
| 446 | |
| 447 | static const struct usb_device_id hanwang_ids[] = { |
| 448 | { HANWANG_TABLET_DEVICE(USB_VENDOR_ID_HANWANG, HANWANG_TABLET_INT_CLASS, |
| 449 | HANWANG_TABLET_INT_SUB_CLASS, HANWANG_TABLET_INT_PROTOCOL) }, |
| 450 | {} |
| 451 | }; |
| 452 | |
| 453 | MODULE_DEVICE_TABLE(usb, hanwang_ids); |
| 454 | |
| 455 | static struct usb_driver hanwang_driver = { |
| 456 | .name = "hanwang", |
| 457 | .probe = hanwang_probe, |
| 458 | .disconnect = hanwang_disconnect, |
| 459 | .id_table = hanwang_ids, |
| 460 | }; |
| 461 | |
Greg Kroah-Hartman | 08642e7 | 2011-11-18 09:48:31 -0800 | [diff] [blame] | 462 | module_usb_driver(hanwang_driver); |