Ping Cheng | 3bea733 | 2006-07-13 18:01:36 -0700 | [diff] [blame] | 1 | /* |
Dmitry Torokhov | 4104d13 | 2007-05-07 16:16:29 -0400 | [diff] [blame] | 2 | * drivers/input/tablet/wacom_sys.c |
Ping Cheng | 3bea733 | 2006-07-13 18:01:36 -0700 | [diff] [blame] | 3 | * |
Ping Cheng | 232f569 | 2009-12-15 00:35:24 -0800 | [diff] [blame] | 4 | * USB Wacom tablet support - system specific code |
Ping Cheng | 3bea733 | 2006-07-13 18:01:36 -0700 | [diff] [blame] | 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 | |
Ping Cheng | 3bea733 | 2006-07-13 18:01:36 -0700 | [diff] [blame] | 14 | #include "wacom_wac.h" |
Dmitry Torokhov | 51269fe | 2010-03-19 22:18:15 -0700 | [diff] [blame] | 15 | #include "wacom.h" |
Ping Cheng | 3bea733 | 2006-07-13 18:01:36 -0700 | [diff] [blame] | 16 | |
Ping Cheng | 545f4e9 | 2008-11-24 11:44:27 -0500 | [diff] [blame] | 17 | /* defines to get HID report descriptor */ |
| 18 | #define HID_DEVICET_HID (USB_TYPE_CLASS | 0x01) |
| 19 | #define HID_DEVICET_REPORT (USB_TYPE_CLASS | 0x02) |
| 20 | #define HID_USAGE_UNDEFINED 0x00 |
| 21 | #define HID_USAGE_PAGE 0x05 |
| 22 | #define HID_USAGE_PAGE_DIGITIZER 0x0d |
| 23 | #define HID_USAGE_PAGE_DESKTOP 0x01 |
| 24 | #define HID_USAGE 0x09 |
| 25 | #define HID_USAGE_X 0x30 |
| 26 | #define HID_USAGE_Y 0x31 |
| 27 | #define HID_USAGE_X_TILT 0x3d |
| 28 | #define HID_USAGE_Y_TILT 0x3e |
| 29 | #define HID_USAGE_FINGER 0x22 |
| 30 | #define HID_USAGE_STYLUS 0x20 |
Ping Cheng | f393ee2 | 2012-04-29 21:09:17 -0700 | [diff] [blame] | 31 | #define HID_USAGE_CONTACTMAX 0x55 |
Chris Bagwell | 4134361 | 2011-10-26 22:32:52 -0700 | [diff] [blame] | 32 | #define HID_COLLECTION 0xa1 |
| 33 | #define HID_COLLECTION_LOGICAL 0x02 |
| 34 | #define HID_COLLECTION_END 0xc0 |
Ping Cheng | 545f4e9 | 2008-11-24 11:44:27 -0500 | [diff] [blame] | 35 | |
| 36 | enum { |
| 37 | WCM_UNDEFINED = 0, |
| 38 | WCM_DESKTOP, |
| 39 | WCM_DIGITIZER, |
| 40 | }; |
| 41 | |
| 42 | struct hid_descriptor { |
| 43 | struct usb_descriptor_header header; |
| 44 | __le16 bcdHID; |
| 45 | u8 bCountryCode; |
| 46 | u8 bNumDescriptors; |
| 47 | u8 bDescriptorType; |
| 48 | __le16 wDescriptorLength; |
| 49 | } __attribute__ ((packed)); |
| 50 | |
| 51 | /* defines to get/set USB message */ |
Ping Cheng | 3bea733 | 2006-07-13 18:01:36 -0700 | [diff] [blame] | 52 | #define USB_REQ_GET_REPORT 0x01 |
| 53 | #define USB_REQ_SET_REPORT 0x09 |
Eduard Hasenleithner | 5d7e7d4 | 2011-09-07 14:08:54 -0700 | [diff] [blame] | 54 | |
Ping Cheng | 545f4e9 | 2008-11-24 11:44:27 -0500 | [diff] [blame] | 55 | #define WAC_HID_FEATURE_REPORT 0x03 |
Ping Cheng | a417ea4 | 2011-08-16 00:17:56 -0700 | [diff] [blame] | 56 | #define WAC_MSG_RETRIES 5 |
Ping Cheng | 3bea733 | 2006-07-13 18:01:36 -0700 | [diff] [blame] | 57 | |
Eduard Hasenleithner | 5d7e7d4 | 2011-09-07 14:08:54 -0700 | [diff] [blame] | 58 | #define WAC_CMD_LED_CONTROL 0x20 |
| 59 | #define WAC_CMD_ICON_START 0x21 |
| 60 | #define WAC_CMD_ICON_XFER 0x23 |
| 61 | #define WAC_CMD_RETRIES 10 |
| 62 | |
| 63 | static int wacom_get_report(struct usb_interface *intf, u8 type, u8 id, |
| 64 | void *buf, size_t size, unsigned int retries) |
Ping Cheng | 3bea733 | 2006-07-13 18:01:36 -0700 | [diff] [blame] | 65 | { |
Eduard Hasenleithner | 5d7e7d4 | 2011-09-07 14:08:54 -0700 | [diff] [blame] | 66 | struct usb_device *dev = interface_to_usbdev(intf); |
| 67 | int retval; |
| 68 | |
| 69 | do { |
| 70 | retval = usb_control_msg(dev, usb_rcvctrlpipe(dev, 0), |
| 71 | USB_REQ_GET_REPORT, |
Chris Bagwell | 6e8ec53 | 2011-10-26 22:24:22 -0700 | [diff] [blame] | 72 | USB_DIR_IN | USB_TYPE_CLASS | |
| 73 | USB_RECIP_INTERFACE, |
Eduard Hasenleithner | 5d7e7d4 | 2011-09-07 14:08:54 -0700 | [diff] [blame] | 74 | (type << 8) + id, |
| 75 | intf->altsetting[0].desc.bInterfaceNumber, |
| 76 | buf, size, 100); |
| 77 | } while ((retval == -ETIMEDOUT || retval == -EPIPE) && --retries); |
| 78 | |
| 79 | return retval; |
Ping Cheng | 3bea733 | 2006-07-13 18:01:36 -0700 | [diff] [blame] | 80 | } |
| 81 | |
Eduard Hasenleithner | 5d7e7d4 | 2011-09-07 14:08:54 -0700 | [diff] [blame] | 82 | static int wacom_set_report(struct usb_interface *intf, u8 type, u8 id, |
| 83 | void *buf, size_t size, unsigned int retries) |
Ping Cheng | 3bea733 | 2006-07-13 18:01:36 -0700 | [diff] [blame] | 84 | { |
Eduard Hasenleithner | 5d7e7d4 | 2011-09-07 14:08:54 -0700 | [diff] [blame] | 85 | struct usb_device *dev = interface_to_usbdev(intf); |
| 86 | int retval; |
| 87 | |
| 88 | do { |
| 89 | retval = usb_control_msg(dev, usb_sndctrlpipe(dev, 0), |
| 90 | USB_REQ_SET_REPORT, |
| 91 | USB_TYPE_CLASS | USB_RECIP_INTERFACE, |
| 92 | (type << 8) + id, |
| 93 | intf->altsetting[0].desc.bInterfaceNumber, |
| 94 | buf, size, 1000); |
| 95 | } while ((retval == -ETIMEDOUT || retval == -EPIPE) && --retries); |
| 96 | |
| 97 | return retval; |
Ping Cheng | 3bea733 | 2006-07-13 18:01:36 -0700 | [diff] [blame] | 98 | } |
| 99 | |
Adrian Bunk | 54c9b226 | 2006-11-20 03:23:58 +0100 | [diff] [blame] | 100 | static void wacom_sys_irq(struct urb *urb) |
Ping Cheng | 3bea733 | 2006-07-13 18:01:36 -0700 | [diff] [blame] | 101 | { |
| 102 | struct wacom *wacom = urb->context; |
Greg Kroah-Hartman | 65e78a20 | 2012-05-04 15:33:13 -0700 | [diff] [blame] | 103 | struct device *dev = &wacom->intf->dev; |
Ping Cheng | 3bea733 | 2006-07-13 18:01:36 -0700 | [diff] [blame] | 104 | int retval; |
| 105 | |
| 106 | switch (urb->status) { |
| 107 | case 0: |
| 108 | /* success */ |
| 109 | break; |
| 110 | case -ECONNRESET: |
| 111 | case -ENOENT: |
| 112 | case -ESHUTDOWN: |
| 113 | /* this urb is terminated, clean up */ |
Greg Kroah-Hartman | 3b6aee2 | 2012-05-01 21:24:28 -0700 | [diff] [blame] | 114 | dev_dbg(dev, "%s - urb shutting down with status: %d\n", |
| 115 | __func__, urb->status); |
Ping Cheng | 3bea733 | 2006-07-13 18:01:36 -0700 | [diff] [blame] | 116 | return; |
| 117 | default: |
Greg Kroah-Hartman | 3b6aee2 | 2012-05-01 21:24:28 -0700 | [diff] [blame] | 118 | dev_dbg(dev, "%s - nonzero urb status received: %d\n", |
| 119 | __func__, urb->status); |
Ping Cheng | 3bea733 | 2006-07-13 18:01:36 -0700 | [diff] [blame] | 120 | goto exit; |
| 121 | } |
| 122 | |
Dmitry Torokhov | 95dd3b3 | 2010-03-19 22:18:15 -0700 | [diff] [blame] | 123 | wacom_wac_irq(&wacom->wacom_wac, urb->actual_length); |
Ping Cheng | 3bea733 | 2006-07-13 18:01:36 -0700 | [diff] [blame] | 124 | |
| 125 | exit: |
Oliver Neukum | e722409 | 2008-04-15 01:31:57 -0400 | [diff] [blame] | 126 | usb_mark_last_busy(wacom->usbdev); |
Dmitry Torokhov | 73a97f4 | 2010-03-19 22:18:15 -0700 | [diff] [blame] | 127 | retval = usb_submit_urb(urb, GFP_ATOMIC); |
Ping Cheng | 3bea733 | 2006-07-13 18:01:36 -0700 | [diff] [blame] | 128 | if (retval) |
Greg Kroah-Hartman | 3b6aee2 | 2012-05-01 21:24:28 -0700 | [diff] [blame] | 129 | dev_err(dev, "%s - usb_submit_urb failed with result %d\n", |
Greg Kroah-Hartman | b3169fe | 2012-04-25 14:48:44 -0700 | [diff] [blame] | 130 | __func__, retval); |
Ping Cheng | 3bea733 | 2006-07-13 18:01:36 -0700 | [diff] [blame] | 131 | } |
| 132 | |
Ping Cheng | 3bea733 | 2006-07-13 18:01:36 -0700 | [diff] [blame] | 133 | static int wacom_open(struct input_dev *dev) |
| 134 | { |
Dmitry Torokhov | 7791bda | 2007-04-12 01:34:39 -0400 | [diff] [blame] | 135 | struct wacom *wacom = input_get_drvdata(dev); |
Dmitry Torokhov | f6cd378 | 2010-10-04 21:46:11 -0700 | [diff] [blame] | 136 | int retval = 0; |
| 137 | |
| 138 | if (usb_autopm_get_interface(wacom->intf) < 0) |
| 139 | return -EIO; |
Ping Cheng | 3bea733 | 2006-07-13 18:01:36 -0700 | [diff] [blame] | 140 | |
Oliver Neukum | e722409 | 2008-04-15 01:31:57 -0400 | [diff] [blame] | 141 | mutex_lock(&wacom->lock); |
Ping Cheng | 3bea733 | 2006-07-13 18:01:36 -0700 | [diff] [blame] | 142 | |
Oliver Neukum | e722409 | 2008-04-15 01:31:57 -0400 | [diff] [blame] | 143 | if (usb_submit_urb(wacom->irq, GFP_KERNEL)) { |
Dmitry Torokhov | f6cd378 | 2010-10-04 21:46:11 -0700 | [diff] [blame] | 144 | retval = -EIO; |
| 145 | goto out; |
Oliver Neukum | e722409 | 2008-04-15 01:31:57 -0400 | [diff] [blame] | 146 | } |
| 147 | |
Dmitry Torokhov | 51269fe | 2010-03-19 22:18:15 -0700 | [diff] [blame] | 148 | wacom->open = true; |
Oliver Neukum | e722409 | 2008-04-15 01:31:57 -0400 | [diff] [blame] | 149 | wacom->intf->needs_remote_wakeup = 1; |
| 150 | |
Dmitry Torokhov | f6cd378 | 2010-10-04 21:46:11 -0700 | [diff] [blame] | 151 | out: |
Oliver Neukum | e722409 | 2008-04-15 01:31:57 -0400 | [diff] [blame] | 152 | mutex_unlock(&wacom->lock); |
Dmitry Torokhov | 62ecae0 | 2010-10-10 14:24:16 -0700 | [diff] [blame] | 153 | usb_autopm_put_interface(wacom->intf); |
Dmitry Torokhov | f6cd378 | 2010-10-04 21:46:11 -0700 | [diff] [blame] | 154 | return retval; |
Ping Cheng | 3bea733 | 2006-07-13 18:01:36 -0700 | [diff] [blame] | 155 | } |
| 156 | |
| 157 | static void wacom_close(struct input_dev *dev) |
| 158 | { |
Dmitry Torokhov | 7791bda | 2007-04-12 01:34:39 -0400 | [diff] [blame] | 159 | struct wacom *wacom = input_get_drvdata(dev); |
Dmitry Torokhov | 62ecae0 | 2010-10-10 14:24:16 -0700 | [diff] [blame] | 160 | int autopm_error; |
| 161 | |
| 162 | autopm_error = usb_autopm_get_interface(wacom->intf); |
Ping Cheng | 3bea733 | 2006-07-13 18:01:36 -0700 | [diff] [blame] | 163 | |
Oliver Neukum | e722409 | 2008-04-15 01:31:57 -0400 | [diff] [blame] | 164 | mutex_lock(&wacom->lock); |
Ping Cheng | 3bea733 | 2006-07-13 18:01:36 -0700 | [diff] [blame] | 165 | usb_kill_urb(wacom->irq); |
Dmitry Torokhov | 51269fe | 2010-03-19 22:18:15 -0700 | [diff] [blame] | 166 | wacom->open = false; |
Oliver Neukum | e722409 | 2008-04-15 01:31:57 -0400 | [diff] [blame] | 167 | wacom->intf->needs_remote_wakeup = 0; |
| 168 | mutex_unlock(&wacom->lock); |
Dmitry Torokhov | f6cd378 | 2010-10-04 21:46:11 -0700 | [diff] [blame] | 169 | |
Dmitry Torokhov | 62ecae0 | 2010-10-10 14:24:16 -0700 | [diff] [blame] | 170 | if (!autopm_error) |
| 171 | usb_autopm_put_interface(wacom->intf); |
Ping Cheng | 3bea733 | 2006-07-13 18:01:36 -0700 | [diff] [blame] | 172 | } |
| 173 | |
Chris Bagwell | 16bf288 | 2012-03-25 23:26:20 -0700 | [diff] [blame] | 174 | /* |
Jason Gerecke | 115d5e1 | 2012-10-03 17:24:32 -0700 | [diff] [blame] | 175 | * Calculate the resolution of the X or Y axis, given appropriate HID data. |
| 176 | * This function is little more than hidinput_calc_abs_res stripped down. |
| 177 | */ |
| 178 | static int wacom_calc_hid_res(int logical_extents, int physical_extents, |
| 179 | unsigned char unit, unsigned char exponent) |
| 180 | { |
| 181 | int prev, unit_exponent; |
| 182 | |
| 183 | /* Check if the extents are sane */ |
| 184 | if (logical_extents <= 0 || physical_extents <= 0) |
| 185 | return 0; |
| 186 | |
| 187 | /* Get signed value of nybble-sized twos-compliment exponent */ |
| 188 | unit_exponent = exponent; |
| 189 | if (unit_exponent > 7) |
| 190 | unit_exponent -= 16; |
| 191 | |
| 192 | /* Convert physical_extents to millimeters */ |
| 193 | if (unit == 0x11) { /* If centimeters */ |
| 194 | unit_exponent += 1; |
| 195 | } else if (unit == 0x13) { /* If inches */ |
| 196 | prev = physical_extents; |
| 197 | physical_extents *= 254; |
| 198 | if (physical_extents < prev) |
| 199 | return 0; |
| 200 | unit_exponent -= 1; |
| 201 | } else { |
| 202 | return 0; |
| 203 | } |
| 204 | |
| 205 | /* Apply negative unit exponent */ |
| 206 | for (; unit_exponent < 0; unit_exponent++) { |
| 207 | prev = logical_extents; |
| 208 | logical_extents *= 10; |
| 209 | if (logical_extents < prev) |
| 210 | return 0; |
| 211 | } |
| 212 | /* Apply positive unit exponent */ |
| 213 | for (; unit_exponent > 0; unit_exponent--) { |
| 214 | prev = physical_extents; |
| 215 | physical_extents *= 10; |
| 216 | if (physical_extents < prev) |
| 217 | return 0; |
| 218 | } |
| 219 | |
| 220 | /* Calculate resolution */ |
| 221 | return logical_extents / physical_extents; |
| 222 | } |
| 223 | |
| 224 | /* |
| 225 | * The physical dimension specified by the HID descriptor is likely not in |
| 226 | * the "100th of a mm" units expected by wacom_calculate_touch_res. This |
| 227 | * function adjusts the value of [xy]_phy based on the unit and exponent |
| 228 | * provided by the HID descriptor. If an error occurs durring conversion |
| 229 | * (e.g. from the unit being left unspecified) [xy]_phy is not modified. |
| 230 | */ |
| 231 | static void wacom_fix_phy_from_hid(struct wacom_features *features) |
| 232 | { |
| 233 | int xres = wacom_calc_hid_res(features->x_max, features->x_phy, |
| 234 | features->unit, features->unitExpo); |
| 235 | int yres = wacom_calc_hid_res(features->y_max, features->y_phy, |
| 236 | features->unit, features->unitExpo); |
| 237 | |
| 238 | if (xres > 0 && yres > 0) { |
| 239 | features->x_phy = (100 * features->x_max) / xres; |
| 240 | features->y_phy = (100 * features->y_max) / yres; |
| 241 | } |
| 242 | } |
| 243 | |
| 244 | /* |
Chris Bagwell | 16bf288 | 2012-03-25 23:26:20 -0700 | [diff] [blame] | 245 | * Static values for max X/Y and resolution of Pen interface is stored in |
| 246 | * features. This mean physical size of active area can be computed. |
| 247 | * This is useful to do when Pen and Touch have same active area of tablet. |
| 248 | * This means for Touch device, we only need to find max X/Y value and we |
| 249 | * have enough information to compute resolution of touch. |
| 250 | */ |
| 251 | static void wacom_set_phy_from_res(struct wacom_features *features) |
| 252 | { |
| 253 | features->x_phy = (features->x_max * 100) / features->x_resolution; |
| 254 | features->y_phy = (features->y_max * 100) / features->y_resolution; |
| 255 | } |
| 256 | |
Chris Bagwell | 4134361 | 2011-10-26 22:32:52 -0700 | [diff] [blame] | 257 | static int wacom_parse_logical_collection(unsigned char *report, |
| 258 | struct wacom_features *features) |
| 259 | { |
| 260 | int length = 0; |
| 261 | |
| 262 | if (features->type == BAMBOO_PT) { |
| 263 | |
| 264 | /* Logical collection is only used by 3rd gen Bamboo Touch */ |
| 265 | features->pktlen = WACOM_PKGLEN_BBTOUCH3; |
Ping Cheng | 8b4a0c1 | 2012-01-31 00:07:33 -0800 | [diff] [blame] | 266 | features->device_type = BTN_TOOL_FINGER; |
Chris Bagwell | 4134361 | 2011-10-26 22:32:52 -0700 | [diff] [blame] | 267 | |
Chris Bagwell | 16bf288 | 2012-03-25 23:26:20 -0700 | [diff] [blame] | 268 | wacom_set_phy_from_res(features); |
Chris Bagwell | 4134361 | 2011-10-26 22:32:52 -0700 | [diff] [blame] | 269 | |
| 270 | features->x_max = features->y_max = |
| 271 | get_unaligned_le16(&report[10]); |
| 272 | |
| 273 | length = 11; |
| 274 | } |
| 275 | return length; |
| 276 | } |
| 277 | |
Ping Cheng | f393ee2 | 2012-04-29 21:09:17 -0700 | [diff] [blame] | 278 | static void wacom_retrieve_report_data(struct usb_interface *intf, |
| 279 | struct wacom_features *features) |
| 280 | { |
| 281 | int result = 0; |
| 282 | unsigned char *rep_data; |
| 283 | |
| 284 | rep_data = kmalloc(2, GFP_KERNEL); |
| 285 | if (rep_data) { |
| 286 | |
| 287 | rep_data[0] = 12; |
| 288 | result = wacom_get_report(intf, WAC_HID_FEATURE_REPORT, |
Ping Cheng | 61c91dd | 2012-06-28 16:46:27 -0700 | [diff] [blame] | 289 | rep_data[0], rep_data, 2, |
Ping Cheng | f393ee2 | 2012-04-29 21:09:17 -0700 | [diff] [blame] | 290 | WAC_MSG_RETRIES); |
| 291 | |
| 292 | if (result >= 0 && rep_data[1] > 2) |
| 293 | features->touch_max = rep_data[1]; |
| 294 | |
| 295 | kfree(rep_data); |
| 296 | } |
| 297 | } |
| 298 | |
Chris Bagwell | 428f858 | 2011-10-26 22:26:59 -0700 | [diff] [blame] | 299 | /* |
| 300 | * Interface Descriptor of wacom devices can be incomplete and |
| 301 | * inconsistent so wacom_features table is used to store stylus |
| 302 | * device's packet lengths, various maximum values, and tablet |
| 303 | * resolution based on product ID's. |
| 304 | * |
| 305 | * For devices that contain 2 interfaces, wacom_features table is |
| 306 | * inaccurate for the touch interface. Since the Interface Descriptor |
| 307 | * for touch interfaces has pretty complete data, this function exists |
| 308 | * to query tablet for this missing information instead of hard coding in |
| 309 | * an additional table. |
| 310 | * |
| 311 | * A typical Interface Descriptor for a stylus will contain a |
| 312 | * boot mouse application collection that is not of interest and this |
| 313 | * function will ignore it. |
| 314 | * |
| 315 | * It also contains a digitizer application collection that also is not |
| 316 | * of interest since any information it contains would be duplicate |
| 317 | * of what is in wacom_features. Usually it defines a report of an array |
| 318 | * of bytes that could be used as max length of the stylus packet returned. |
| 319 | * If it happens to define a Digitizer-Stylus Physical Collection then |
| 320 | * the X and Y logical values contain valid data but it is ignored. |
| 321 | * |
| 322 | * A typical Interface Descriptor for a touch interface will contain a |
| 323 | * Digitizer-Finger Physical Collection which will define both logical |
| 324 | * X/Y maximum as well as the physical size of tablet. Since touch |
| 325 | * interfaces haven't supported pressure or distance, this is enough |
| 326 | * information to override invalid values in the wacom_features table. |
Chris Bagwell | 4134361 | 2011-10-26 22:32:52 -0700 | [diff] [blame] | 327 | * |
| 328 | * 3rd gen Bamboo Touch no longer define a Digitizer-Finger Pysical |
| 329 | * Collection. Instead they define a Logical Collection with a single |
| 330 | * Logical Maximum for both X and Y. |
Jason Gerecke | ae584ca | 2012-04-03 15:50:40 -0700 | [diff] [blame] | 331 | * |
| 332 | * Intuos5 touch interface does not contain useful data. We deal with |
| 333 | * this after returning from this function. |
Chris Bagwell | 428f858 | 2011-10-26 22:26:59 -0700 | [diff] [blame] | 334 | */ |
| 335 | static int wacom_parse_hid(struct usb_interface *intf, |
| 336 | struct hid_descriptor *hid_desc, |
Ping Cheng | ec67bbe | 2009-12-15 00:35:24 -0800 | [diff] [blame] | 337 | struct wacom_features *features) |
Ping Cheng | 545f4e9 | 2008-11-24 11:44:27 -0500 | [diff] [blame] | 338 | { |
| 339 | struct usb_device *dev = interface_to_usbdev(intf); |
Ping Cheng | ec67bbe | 2009-12-15 00:35:24 -0800 | [diff] [blame] | 340 | char limit = 0; |
| 341 | /* result has to be defined as int for some devices */ |
| 342 | int result = 0; |
Ping Cheng | 545f4e9 | 2008-11-24 11:44:27 -0500 | [diff] [blame] | 343 | int i = 0, usage = WCM_UNDEFINED, finger = 0, pen = 0; |
| 344 | unsigned char *report; |
| 345 | |
| 346 | report = kzalloc(hid_desc->wDescriptorLength, GFP_KERNEL); |
| 347 | if (!report) |
| 348 | return -ENOMEM; |
| 349 | |
| 350 | /* retrive report descriptors */ |
| 351 | do { |
| 352 | result = usb_control_msg(dev, usb_rcvctrlpipe(dev, 0), |
| 353 | USB_REQ_GET_DESCRIPTOR, |
| 354 | USB_RECIP_INTERFACE | USB_DIR_IN, |
| 355 | HID_DEVICET_REPORT << 8, |
| 356 | intf->altsetting[0].desc.bInterfaceNumber, /* interface */ |
| 357 | report, |
| 358 | hid_desc->wDescriptorLength, |
| 359 | 5000); /* 5 secs */ |
Ping Cheng | a417ea4 | 2011-08-16 00:17:56 -0700 | [diff] [blame] | 360 | } while (result < 0 && limit++ < WAC_MSG_RETRIES); |
Ping Cheng | 545f4e9 | 2008-11-24 11:44:27 -0500 | [diff] [blame] | 361 | |
Ping Cheng | 384318e | 2009-04-28 07:49:54 -0700 | [diff] [blame] | 362 | /* No need to parse the Descriptor. It isn't an error though */ |
Ping Cheng | 545f4e9 | 2008-11-24 11:44:27 -0500 | [diff] [blame] | 363 | if (result < 0) |
| 364 | goto out; |
| 365 | |
| 366 | for (i = 0; i < hid_desc->wDescriptorLength; i++) { |
| 367 | |
| 368 | switch (report[i]) { |
| 369 | case HID_USAGE_PAGE: |
| 370 | switch (report[i + 1]) { |
| 371 | case HID_USAGE_PAGE_DIGITIZER: |
| 372 | usage = WCM_DIGITIZER; |
| 373 | i++; |
| 374 | break; |
| 375 | |
| 376 | case HID_USAGE_PAGE_DESKTOP: |
| 377 | usage = WCM_DESKTOP; |
| 378 | i++; |
| 379 | break; |
| 380 | } |
| 381 | break; |
| 382 | |
| 383 | case HID_USAGE: |
| 384 | switch (report[i + 1]) { |
| 385 | case HID_USAGE_X: |
| 386 | if (usage == WCM_DESKTOP) { |
| 387 | if (finger) { |
Ping Cheng | 84eb5aa | 2011-03-12 20:35:18 -0800 | [diff] [blame] | 388 | features->device_type = BTN_TOOL_FINGER; |
Ping Cheng | 3699dd7 | 2012-11-03 12:16:13 -0700 | [diff] [blame] | 389 | |
| 390 | switch (features->type) { |
| 391 | case TABLETPC2FG: |
Ping Cheng | ec67bbe | 2009-12-15 00:35:24 -0800 | [diff] [blame] | 392 | features->pktlen = WACOM_PKGLEN_TPC2FG; |
Ping Cheng | 3699dd7 | 2012-11-03 12:16:13 -0700 | [diff] [blame] | 393 | break; |
| 394 | |
| 395 | case MTSCREEN: |
| 396 | case WACOM_24HDT: |
| 397 | features->pktlen = WACOM_PKGLEN_MTOUCH; |
| 398 | break; |
| 399 | |
Ping Cheng | 6afdc28 | 2012-11-03 12:16:15 -0700 | [diff] [blame] | 400 | case MTTPC: |
| 401 | features->pktlen = WACOM_PKGLEN_MTTPC; |
| 402 | break; |
| 403 | |
Ping Cheng | 3699dd7 | 2012-11-03 12:16:13 -0700 | [diff] [blame] | 404 | case BAMBOO_PT: |
| 405 | features->pktlen = WACOM_PKGLEN_BBTOUCH; |
| 406 | break; |
| 407 | |
| 408 | default: |
| 409 | features->pktlen = WACOM_PKGLEN_GRAPHIRE; |
| 410 | break; |
Ping Cheng | ec67bbe | 2009-12-15 00:35:24 -0800 | [diff] [blame] | 411 | } |
Ping Cheng | 1963518 | 2012-04-29 21:09:18 -0700 | [diff] [blame] | 412 | |
Ping Cheng | 3699dd7 | 2012-11-03 12:16:13 -0700 | [diff] [blame] | 413 | switch (features->type) { |
| 414 | case BAMBOO_PT: |
Ping Cheng | 4a88081 | 2010-09-05 12:25:40 -0700 | [diff] [blame] | 415 | features->x_phy = |
| 416 | get_unaligned_le16(&report[i + 5]); |
| 417 | features->x_max = |
| 418 | get_unaligned_le16(&report[i + 8]); |
| 419 | i += 15; |
Ping Cheng | 3699dd7 | 2012-11-03 12:16:13 -0700 | [diff] [blame] | 420 | break; |
| 421 | |
| 422 | case WACOM_24HDT: |
Jason Gerecke | b1e4279 | 2012-10-21 00:38:04 -0700 | [diff] [blame] | 423 | features->x_max = |
| 424 | get_unaligned_le16(&report[i + 3]); |
| 425 | features->x_phy = |
| 426 | get_unaligned_le16(&report[i + 8]); |
| 427 | features->unit = report[i - 1]; |
| 428 | features->unitExpo = report[i - 3]; |
| 429 | i += 12; |
Ping Cheng | 3699dd7 | 2012-11-03 12:16:13 -0700 | [diff] [blame] | 430 | break; |
| 431 | |
| 432 | default: |
Ping Cheng | 4a88081 | 2010-09-05 12:25:40 -0700 | [diff] [blame] | 433 | features->x_max = |
| 434 | get_unaligned_le16(&report[i + 3]); |
| 435 | features->x_phy = |
| 436 | get_unaligned_le16(&report[i + 6]); |
| 437 | features->unit = report[i + 9]; |
| 438 | features->unitExpo = report[i + 11]; |
| 439 | i += 12; |
Ping Cheng | 3699dd7 | 2012-11-03 12:16:13 -0700 | [diff] [blame] | 440 | break; |
Ping Cheng | 4a88081 | 2010-09-05 12:25:40 -0700 | [diff] [blame] | 441 | } |
Ping Cheng | 545f4e9 | 2008-11-24 11:44:27 -0500 | [diff] [blame] | 442 | } else if (pen) { |
Ping Cheng | ec67bbe | 2009-12-15 00:35:24 -0800 | [diff] [blame] | 443 | /* penabled only accepts exact bytes of data */ |
Ping Cheng | 3699dd7 | 2012-11-03 12:16:13 -0700 | [diff] [blame] | 444 | if (features->type >= TABLETPC) |
Ping Cheng | 57e413d | 2010-03-01 23:50:24 -0800 | [diff] [blame] | 445 | features->pktlen = WACOM_PKGLEN_GRAPHIRE; |
Ping Cheng | ec67bbe | 2009-12-15 00:35:24 -0800 | [diff] [blame] | 446 | features->device_type = BTN_TOOL_PEN; |
Ping Cheng | 545f4e9 | 2008-11-24 11:44:27 -0500 | [diff] [blame] | 447 | features->x_max = |
Dmitry Torokhov | 252f776 | 2010-03-19 22:33:38 -0700 | [diff] [blame] | 448 | get_unaligned_le16(&report[i + 3]); |
Ping Cheng | 545f4e9 | 2008-11-24 11:44:27 -0500 | [diff] [blame] | 449 | i += 4; |
| 450 | } |
Ping Cheng | 545f4e9 | 2008-11-24 11:44:27 -0500 | [diff] [blame] | 451 | } |
| 452 | break; |
| 453 | |
| 454 | case HID_USAGE_Y: |
Ping Cheng | ec67bbe | 2009-12-15 00:35:24 -0800 | [diff] [blame] | 455 | if (usage == WCM_DESKTOP) { |
| 456 | if (finger) { |
Ping Cheng | 3699dd7 | 2012-11-03 12:16:13 -0700 | [diff] [blame] | 457 | switch (features->type) { |
| 458 | case TABLETPC2FG: |
| 459 | case MTSCREEN: |
Ping Cheng | 6afdc28 | 2012-11-03 12:16:15 -0700 | [diff] [blame] | 460 | case MTTPC: |
Ping Cheng | ec67bbe | 2009-12-15 00:35:24 -0800 | [diff] [blame] | 461 | features->y_max = |
Dmitry Torokhov | 252f776 | 2010-03-19 22:33:38 -0700 | [diff] [blame] | 462 | get_unaligned_le16(&report[i + 3]); |
Ping Cheng | ec67bbe | 2009-12-15 00:35:24 -0800 | [diff] [blame] | 463 | features->y_phy = |
Dmitry Torokhov | 252f776 | 2010-03-19 22:33:38 -0700 | [diff] [blame] | 464 | get_unaligned_le16(&report[i + 6]); |
Ping Cheng | ec67bbe | 2009-12-15 00:35:24 -0800 | [diff] [blame] | 465 | i += 7; |
Ping Cheng | 3699dd7 | 2012-11-03 12:16:13 -0700 | [diff] [blame] | 466 | break; |
| 467 | |
| 468 | case WACOM_24HDT: |
Jason Gerecke | b1e4279 | 2012-10-21 00:38:04 -0700 | [diff] [blame] | 469 | features->y_max = |
| 470 | get_unaligned_le16(&report[i + 3]); |
| 471 | features->y_phy = |
| 472 | get_unaligned_le16(&report[i - 2]); |
| 473 | i += 7; |
Ping Cheng | 3699dd7 | 2012-11-03 12:16:13 -0700 | [diff] [blame] | 474 | break; |
| 475 | |
| 476 | case BAMBOO_PT: |
Ping Cheng | 4a88081 | 2010-09-05 12:25:40 -0700 | [diff] [blame] | 477 | features->y_phy = |
| 478 | get_unaligned_le16(&report[i + 3]); |
| 479 | features->y_max = |
| 480 | get_unaligned_le16(&report[i + 6]); |
| 481 | i += 12; |
Ping Cheng | 3699dd7 | 2012-11-03 12:16:13 -0700 | [diff] [blame] | 482 | break; |
| 483 | |
| 484 | default: |
Ping Cheng | ec67bbe | 2009-12-15 00:35:24 -0800 | [diff] [blame] | 485 | features->y_max = |
| 486 | features->x_max; |
| 487 | features->y_phy = |
Dmitry Torokhov | 252f776 | 2010-03-19 22:33:38 -0700 | [diff] [blame] | 488 | get_unaligned_le16(&report[i + 3]); |
Ping Cheng | ec67bbe | 2009-12-15 00:35:24 -0800 | [diff] [blame] | 489 | i += 4; |
Ping Cheng | 3699dd7 | 2012-11-03 12:16:13 -0700 | [diff] [blame] | 490 | break; |
Ping Cheng | ec67bbe | 2009-12-15 00:35:24 -0800 | [diff] [blame] | 491 | } |
| 492 | } else if (pen) { |
Ping Cheng | ec67bbe | 2009-12-15 00:35:24 -0800 | [diff] [blame] | 493 | features->y_max = |
Dmitry Torokhov | 252f776 | 2010-03-19 22:33:38 -0700 | [diff] [blame] | 494 | get_unaligned_le16(&report[i + 3]); |
Ping Cheng | ec67bbe | 2009-12-15 00:35:24 -0800 | [diff] [blame] | 495 | i += 4; |
| 496 | } |
| 497 | } |
Ping Cheng | 545f4e9 | 2008-11-24 11:44:27 -0500 | [diff] [blame] | 498 | break; |
| 499 | |
| 500 | case HID_USAGE_FINGER: |
| 501 | finger = 1; |
| 502 | i++; |
| 503 | break; |
| 504 | |
Chris Bagwell | 428f858 | 2011-10-26 22:26:59 -0700 | [diff] [blame] | 505 | /* |
| 506 | * Requiring Stylus Usage will ignore boot mouse |
| 507 | * X/Y values and some cases of invalid Digitizer X/Y |
| 508 | * values commonly reported. |
| 509 | */ |
Ping Cheng | 545f4e9 | 2008-11-24 11:44:27 -0500 | [diff] [blame] | 510 | case HID_USAGE_STYLUS: |
| 511 | pen = 1; |
| 512 | i++; |
| 513 | break; |
Ping Cheng | f393ee2 | 2012-04-29 21:09:17 -0700 | [diff] [blame] | 514 | |
| 515 | case HID_USAGE_CONTACTMAX: |
Ping Cheng | 1cecc5c | 2012-06-28 16:47:30 -0700 | [diff] [blame] | 516 | /* leave touch_max as is if predefined */ |
| 517 | if (!features->touch_max) |
| 518 | wacom_retrieve_report_data(intf, features); |
Ping Cheng | f393ee2 | 2012-04-29 21:09:17 -0700 | [diff] [blame] | 519 | i++; |
| 520 | break; |
Ping Cheng | 545f4e9 | 2008-11-24 11:44:27 -0500 | [diff] [blame] | 521 | } |
| 522 | break; |
| 523 | |
Chris Bagwell | 4134361 | 2011-10-26 22:32:52 -0700 | [diff] [blame] | 524 | case HID_COLLECTION_END: |
Ping Cheng | ec67bbe | 2009-12-15 00:35:24 -0800 | [diff] [blame] | 525 | /* reset UsagePage and Finger */ |
Ping Cheng | 545f4e9 | 2008-11-24 11:44:27 -0500 | [diff] [blame] | 526 | finger = usage = 0; |
| 527 | break; |
Chris Bagwell | 4134361 | 2011-10-26 22:32:52 -0700 | [diff] [blame] | 528 | |
| 529 | case HID_COLLECTION: |
| 530 | i++; |
| 531 | switch (report[i]) { |
| 532 | case HID_COLLECTION_LOGICAL: |
| 533 | i += wacom_parse_logical_collection(&report[i], |
| 534 | features); |
| 535 | break; |
| 536 | } |
| 537 | break; |
Ping Cheng | 545f4e9 | 2008-11-24 11:44:27 -0500 | [diff] [blame] | 538 | } |
| 539 | } |
| 540 | |
Ping Cheng | 545f4e9 | 2008-11-24 11:44:27 -0500 | [diff] [blame] | 541 | out: |
Ping Cheng | 384318e | 2009-04-28 07:49:54 -0700 | [diff] [blame] | 542 | result = 0; |
Ping Cheng | 545f4e9 | 2008-11-24 11:44:27 -0500 | [diff] [blame] | 543 | kfree(report); |
| 544 | return result; |
| 545 | } |
| 546 | |
Jason Gerecke | fe494bc | 2012-10-03 17:25:35 -0700 | [diff] [blame] | 547 | static int wacom_set_device_mode(struct usb_interface *intf, int report_id, int length, int mode) |
Dmitry Torokhov | 3b7307c | 2009-08-20 21:41:04 -0700 | [diff] [blame] | 548 | { |
| 549 | unsigned char *rep_data; |
Jason Gerecke | fe494bc | 2012-10-03 17:25:35 -0700 | [diff] [blame] | 550 | int error = -ENOMEM, limit = 0; |
Dmitry Torokhov | 3b7307c | 2009-08-20 21:41:04 -0700 | [diff] [blame] | 551 | |
Jason Gerecke | fe494bc | 2012-10-03 17:25:35 -0700 | [diff] [blame] | 552 | rep_data = kzalloc(length, GFP_KERNEL); |
Dmitry Torokhov | 3b7307c | 2009-08-20 21:41:04 -0700 | [diff] [blame] | 553 | if (!rep_data) |
Ping Cheng | ec67bbe | 2009-12-15 00:35:24 -0800 | [diff] [blame] | 554 | return error; |
Dmitry Torokhov | 3b7307c | 2009-08-20 21:41:04 -0700 | [diff] [blame] | 555 | |
Jason Gerecke | fe494bc | 2012-10-03 17:25:35 -0700 | [diff] [blame] | 556 | rep_data[0] = report_id; |
| 557 | rep_data[1] = mode; |
| 558 | |
| 559 | do { |
| 560 | error = wacom_set_report(intf, WAC_HID_FEATURE_REPORT, |
| 561 | report_id, rep_data, length, 1); |
| 562 | if (error >= 0) |
| 563 | error = wacom_get_report(intf, WAC_HID_FEATURE_REPORT, |
| 564 | report_id, rep_data, length, 1); |
| 565 | } while ((error < 0 || rep_data[1] != mode) && limit++ < WAC_MSG_RETRIES); |
Dmitry Torokhov | 3b7307c | 2009-08-20 21:41:04 -0700 | [diff] [blame] | 566 | |
| 567 | kfree(rep_data); |
| 568 | |
| 569 | return error < 0 ? error : 0; |
| 570 | } |
| 571 | |
Jason Gerecke | fe494bc | 2012-10-03 17:25:35 -0700 | [diff] [blame] | 572 | /* |
| 573 | * Switch the tablet into its most-capable mode. Wacom tablets are |
| 574 | * typically configured to power-up in a mode which sends mouse-like |
| 575 | * reports to the OS. To get absolute position, pressure data, etc. |
| 576 | * from the tablet, it is necessary to switch the tablet out of this |
| 577 | * mode and into one which sends the full range of tablet data. |
| 578 | */ |
| 579 | static int wacom_query_tablet_data(struct usb_interface *intf, struct wacom_features *features) |
| 580 | { |
| 581 | if (features->device_type == BTN_TOOL_FINGER) { |
| 582 | if (features->type > TABLETPC) { |
| 583 | /* MT Tablet PC touch */ |
| 584 | return wacom_set_device_mode(intf, 3, 4, 4); |
| 585 | } |
Jason Gerecke | b1e4279 | 2012-10-21 00:38:04 -0700 | [diff] [blame] | 586 | else if (features->type == WACOM_24HDT) { |
| 587 | return wacom_set_device_mode(intf, 18, 3, 2); |
| 588 | } |
Jason Gerecke | fe494bc | 2012-10-03 17:25:35 -0700 | [diff] [blame] | 589 | } else if (features->device_type == BTN_TOOL_PEN) { |
| 590 | if (features->type <= BAMBOO_PT && features->type != WIRELESS) { |
| 591 | return wacom_set_device_mode(intf, 2, 2, 2); |
| 592 | } |
| 593 | } |
| 594 | |
| 595 | return 0; |
| 596 | } |
| 597 | |
Ping Cheng | ec67bbe | 2009-12-15 00:35:24 -0800 | [diff] [blame] | 598 | static int wacom_retrieve_hid_descriptor(struct usb_interface *intf, |
Ping Cheng | 1963518 | 2012-04-29 21:09:18 -0700 | [diff] [blame] | 599 | struct wacom_features *features) |
Ping Cheng | ec67bbe | 2009-12-15 00:35:24 -0800 | [diff] [blame] | 600 | { |
| 601 | int error = 0; |
| 602 | struct usb_host_interface *interface = intf->cur_altsetting; |
| 603 | struct hid_descriptor *hid_desc; |
| 604 | |
Henrik Rydberg | fed87e6 | 2010-09-05 12:25:11 -0700 | [diff] [blame] | 605 | /* default features */ |
Ping Cheng | ec67bbe | 2009-12-15 00:35:24 -0800 | [diff] [blame] | 606 | features->device_type = BTN_TOOL_PEN; |
Henrik Rydberg | fed87e6 | 2010-09-05 12:25:11 -0700 | [diff] [blame] | 607 | features->x_fuzz = 4; |
| 608 | features->y_fuzz = 4; |
| 609 | features->pressure_fuzz = 0; |
| 610 | features->distance_fuzz = 0; |
Ping Cheng | ec67bbe | 2009-12-15 00:35:24 -0800 | [diff] [blame] | 611 | |
Chris Bagwell | d3825d5 | 2012-03-25 23:26:11 -0700 | [diff] [blame] | 612 | /* |
| 613 | * The wireless device HID is basic and layout conflicts with |
| 614 | * other tablets (monitor and touch interface can look like pen). |
| 615 | * Skip the query for this type and modify defaults based on |
| 616 | * interface number. |
| 617 | */ |
| 618 | if (features->type == WIRELESS) { |
| 619 | if (intf->cur_altsetting->desc.bInterfaceNumber == 0) { |
| 620 | features->device_type = 0; |
| 621 | } else if (intf->cur_altsetting->desc.bInterfaceNumber == 2) { |
Ping Cheng | adad004 | 2012-06-28 16:48:17 -0700 | [diff] [blame] | 622 | features->device_type = BTN_TOOL_FINGER; |
Chris Bagwell | d3825d5 | 2012-03-25 23:26:11 -0700 | [diff] [blame] | 623 | features->pktlen = WACOM_PKGLEN_BBTOUCH3; |
| 624 | } |
| 625 | } |
| 626 | |
Ping Cheng | 1963518 | 2012-04-29 21:09:18 -0700 | [diff] [blame] | 627 | /* only devices that support touch need to retrieve the info */ |
Ping Cheng | ea2e602 | 2012-06-12 00:14:12 -0700 | [diff] [blame] | 628 | if (features->type < BAMBOO_PT) { |
Ping Cheng | ec67bbe | 2009-12-15 00:35:24 -0800 | [diff] [blame] | 629 | goto out; |
Ping Cheng | 1963518 | 2012-04-29 21:09:18 -0700 | [diff] [blame] | 630 | } |
Ping Cheng | ec67bbe | 2009-12-15 00:35:24 -0800 | [diff] [blame] | 631 | |
Dmitry Torokhov | a882c93 | 2012-05-02 00:13:38 -0700 | [diff] [blame] | 632 | error = usb_get_extra_descriptor(interface, HID_DEVICET_HID, &hid_desc); |
| 633 | if (error) { |
| 634 | error = usb_get_extra_descriptor(&interface->endpoint[0], |
| 635 | HID_DEVICET_REPORT, &hid_desc); |
| 636 | if (error) { |
Dmitry Torokhov | eb71d1b | 2012-05-02 00:13:38 -0700 | [diff] [blame] | 637 | dev_err(&intf->dev, |
| 638 | "can not retrieve extra class descriptor\n"); |
Ping Cheng | ec67bbe | 2009-12-15 00:35:24 -0800 | [diff] [blame] | 639 | goto out; |
| 640 | } |
| 641 | } |
| 642 | error = wacom_parse_hid(intf, hid_desc, features); |
| 643 | if (error) |
| 644 | goto out; |
Jason Gerecke | 115d5e1 | 2012-10-03 17:24:32 -0700 | [diff] [blame] | 645 | wacom_fix_phy_from_hid(features); |
Ping Cheng | ec67bbe | 2009-12-15 00:35:24 -0800 | [diff] [blame] | 646 | |
Ping Cheng | ec67bbe | 2009-12-15 00:35:24 -0800 | [diff] [blame] | 647 | out: |
| 648 | return error; |
| 649 | } |
| 650 | |
Ping Cheng | 4492eff | 2010-03-19 22:18:15 -0700 | [diff] [blame] | 651 | struct wacom_usbdev_data { |
| 652 | struct list_head list; |
| 653 | struct kref kref; |
| 654 | struct usb_device *dev; |
| 655 | struct wacom_shared shared; |
| 656 | }; |
| 657 | |
| 658 | static LIST_HEAD(wacom_udev_list); |
| 659 | static DEFINE_MUTEX(wacom_udev_list_lock); |
| 660 | |
Jason Gerecke | aea2bf6 | 2012-10-21 00:38:03 -0700 | [diff] [blame] | 661 | static struct usb_device *wacom_get_sibling(struct usb_device *dev, int vendor, int product) |
| 662 | { |
| 663 | int port1; |
| 664 | struct usb_device *sibling; |
| 665 | |
| 666 | if (vendor == 0 && product == 0) |
| 667 | return dev; |
| 668 | |
| 669 | if (dev->parent == NULL) |
| 670 | return NULL; |
| 671 | |
| 672 | usb_hub_for_each_child(dev->parent, port1, sibling) { |
| 673 | struct usb_device_descriptor *d; |
| 674 | if (sibling == NULL) |
| 675 | continue; |
| 676 | |
| 677 | d = &sibling->descriptor; |
| 678 | if (d->idVendor == vendor && d->idProduct == product) |
| 679 | return sibling; |
| 680 | } |
| 681 | |
| 682 | return NULL; |
| 683 | } |
| 684 | |
Ping Cheng | 4492eff | 2010-03-19 22:18:15 -0700 | [diff] [blame] | 685 | static struct wacom_usbdev_data *wacom_get_usbdev_data(struct usb_device *dev) |
| 686 | { |
| 687 | struct wacom_usbdev_data *data; |
| 688 | |
| 689 | list_for_each_entry(data, &wacom_udev_list, list) { |
| 690 | if (data->dev == dev) { |
| 691 | kref_get(&data->kref); |
| 692 | return data; |
| 693 | } |
| 694 | } |
| 695 | |
| 696 | return NULL; |
| 697 | } |
| 698 | |
| 699 | static int wacom_add_shared_data(struct wacom_wac *wacom, |
| 700 | struct usb_device *dev) |
| 701 | { |
| 702 | struct wacom_usbdev_data *data; |
| 703 | int retval = 0; |
| 704 | |
| 705 | mutex_lock(&wacom_udev_list_lock); |
| 706 | |
| 707 | data = wacom_get_usbdev_data(dev); |
| 708 | if (!data) { |
| 709 | data = kzalloc(sizeof(struct wacom_usbdev_data), GFP_KERNEL); |
| 710 | if (!data) { |
| 711 | retval = -ENOMEM; |
| 712 | goto out; |
| 713 | } |
| 714 | |
| 715 | kref_init(&data->kref); |
| 716 | data->dev = dev; |
| 717 | list_add_tail(&data->list, &wacom_udev_list); |
| 718 | } |
| 719 | |
| 720 | wacom->shared = &data->shared; |
| 721 | |
| 722 | out: |
| 723 | mutex_unlock(&wacom_udev_list_lock); |
| 724 | return retval; |
| 725 | } |
| 726 | |
| 727 | static void wacom_release_shared_data(struct kref *kref) |
| 728 | { |
| 729 | struct wacom_usbdev_data *data = |
| 730 | container_of(kref, struct wacom_usbdev_data, kref); |
| 731 | |
| 732 | mutex_lock(&wacom_udev_list_lock); |
| 733 | list_del(&data->list); |
| 734 | mutex_unlock(&wacom_udev_list_lock); |
| 735 | |
| 736 | kfree(data); |
| 737 | } |
| 738 | |
| 739 | static void wacom_remove_shared_data(struct wacom_wac *wacom) |
| 740 | { |
| 741 | struct wacom_usbdev_data *data; |
| 742 | |
| 743 | if (wacom->shared) { |
| 744 | data = container_of(wacom->shared, struct wacom_usbdev_data, shared); |
| 745 | kref_put(&data->kref, wacom_release_shared_data); |
| 746 | wacom->shared = NULL; |
| 747 | } |
| 748 | } |
| 749 | |
Eduard Hasenleithner | 5d7e7d4 | 2011-09-07 14:08:54 -0700 | [diff] [blame] | 750 | static int wacom_led_control(struct wacom *wacom) |
| 751 | { |
| 752 | unsigned char *buf; |
Jason Gerecke | 9b5b95d | 2012-04-03 15:50:37 -0700 | [diff] [blame] | 753 | int retval; |
Eduard Hasenleithner | 5d7e7d4 | 2011-09-07 14:08:54 -0700 | [diff] [blame] | 754 | |
| 755 | buf = kzalloc(9, GFP_KERNEL); |
| 756 | if (!buf) |
| 757 | return -ENOMEM; |
| 758 | |
Jason Gerecke | 9b5b95d | 2012-04-03 15:50:37 -0700 | [diff] [blame] | 759 | if (wacom->wacom_wac.features.type >= INTUOS5S && |
| 760 | wacom->wacom_wac.features.type <= INTUOS5L) { |
| 761 | /* |
| 762 | * Touch Ring and crop mark LED luminance may take on |
| 763 | * one of four values: |
| 764 | * 0 = Low; 1 = Medium; 2 = High; 3 = Off |
| 765 | */ |
| 766 | int ring_led = wacom->led.select[0] & 0x03; |
| 767 | int ring_lum = (((wacom->led.llv & 0x60) >> 5) - 1) & 0x03; |
| 768 | int crop_lum = 0; |
Ping Cheng | 09e7d94 | 2011-10-04 23:51:14 -0700 | [diff] [blame] | 769 | |
Jason Gerecke | 9b5b95d | 2012-04-03 15:50:37 -0700 | [diff] [blame] | 770 | buf[0] = WAC_CMD_LED_CONTROL; |
| 771 | buf[1] = (crop_lum << 4) | (ring_lum << 2) | (ring_led); |
| 772 | } |
| 773 | else { |
| 774 | int led = wacom->led.select[0] | 0x4; |
Ping Cheng | 09e7d94 | 2011-10-04 23:51:14 -0700 | [diff] [blame] | 775 | |
Jason Gerecke | 9b5b95d | 2012-04-03 15:50:37 -0700 | [diff] [blame] | 776 | if (wacom->wacom_wac.features.type == WACOM_21UX2 || |
| 777 | wacom->wacom_wac.features.type == WACOM_24HD) |
| 778 | led |= (wacom->led.select[1] << 4) | 0x40; |
| 779 | |
| 780 | buf[0] = WAC_CMD_LED_CONTROL; |
| 781 | buf[1] = led; |
| 782 | buf[2] = wacom->led.llv; |
| 783 | buf[3] = wacom->led.hlv; |
| 784 | buf[4] = wacom->led.img_lum; |
| 785 | } |
Eduard Hasenleithner | 5d7e7d4 | 2011-09-07 14:08:54 -0700 | [diff] [blame] | 786 | |
| 787 | retval = wacom_set_report(wacom->intf, 0x03, WAC_CMD_LED_CONTROL, |
| 788 | buf, 9, WAC_CMD_RETRIES); |
| 789 | kfree(buf); |
| 790 | |
| 791 | return retval; |
| 792 | } |
| 793 | |
| 794 | static int wacom_led_putimage(struct wacom *wacom, int button_id, const void *img) |
| 795 | { |
| 796 | unsigned char *buf; |
| 797 | int i, retval; |
| 798 | |
| 799 | buf = kzalloc(259, GFP_KERNEL); |
| 800 | if (!buf) |
| 801 | return -ENOMEM; |
| 802 | |
| 803 | /* Send 'start' command */ |
| 804 | buf[0] = WAC_CMD_ICON_START; |
| 805 | buf[1] = 1; |
| 806 | retval = wacom_set_report(wacom->intf, 0x03, WAC_CMD_ICON_START, |
| 807 | buf, 2, WAC_CMD_RETRIES); |
| 808 | if (retval < 0) |
| 809 | goto out; |
| 810 | |
| 811 | buf[0] = WAC_CMD_ICON_XFER; |
| 812 | buf[1] = button_id & 0x07; |
| 813 | for (i = 0; i < 4; i++) { |
| 814 | buf[2] = i; |
| 815 | memcpy(buf + 3, img + i * 256, 256); |
| 816 | |
| 817 | retval = wacom_set_report(wacom->intf, 0x03, WAC_CMD_ICON_XFER, |
| 818 | buf, 259, WAC_CMD_RETRIES); |
| 819 | if (retval < 0) |
| 820 | break; |
| 821 | } |
| 822 | |
| 823 | /* Send 'stop' */ |
| 824 | buf[0] = WAC_CMD_ICON_START; |
| 825 | buf[1] = 0; |
| 826 | wacom_set_report(wacom->intf, 0x03, WAC_CMD_ICON_START, |
| 827 | buf, 2, WAC_CMD_RETRIES); |
| 828 | |
| 829 | out: |
| 830 | kfree(buf); |
| 831 | return retval; |
| 832 | } |
| 833 | |
Ping Cheng | 09e7d94 | 2011-10-04 23:51:14 -0700 | [diff] [blame] | 834 | static ssize_t wacom_led_select_store(struct device *dev, int set_id, |
Eduard Hasenleithner | 5d7e7d4 | 2011-09-07 14:08:54 -0700 | [diff] [blame] | 835 | const char *buf, size_t count) |
| 836 | { |
| 837 | struct wacom *wacom = dev_get_drvdata(dev); |
| 838 | unsigned int id; |
| 839 | int err; |
| 840 | |
| 841 | err = kstrtouint(buf, 10, &id); |
| 842 | if (err) |
| 843 | return err; |
| 844 | |
| 845 | mutex_lock(&wacom->lock); |
| 846 | |
Ping Cheng | 09e7d94 | 2011-10-04 23:51:14 -0700 | [diff] [blame] | 847 | wacom->led.select[set_id] = id & 0x3; |
Eduard Hasenleithner | 5d7e7d4 | 2011-09-07 14:08:54 -0700 | [diff] [blame] | 848 | err = wacom_led_control(wacom); |
| 849 | |
| 850 | mutex_unlock(&wacom->lock); |
| 851 | |
| 852 | return err < 0 ? err : count; |
| 853 | } |
| 854 | |
Ping Cheng | 09e7d94 | 2011-10-04 23:51:14 -0700 | [diff] [blame] | 855 | #define DEVICE_LED_SELECT_ATTR(SET_ID) \ |
| 856 | static ssize_t wacom_led##SET_ID##_select_store(struct device *dev, \ |
| 857 | struct device_attribute *attr, const char *buf, size_t count) \ |
| 858 | { \ |
| 859 | return wacom_led_select_store(dev, SET_ID, buf, count); \ |
| 860 | } \ |
Ping Cheng | 04c59ab | 2011-10-04 23:51:49 -0700 | [diff] [blame] | 861 | static ssize_t wacom_led##SET_ID##_select_show(struct device *dev, \ |
| 862 | struct device_attribute *attr, char *buf) \ |
| 863 | { \ |
| 864 | struct wacom *wacom = dev_get_drvdata(dev); \ |
| 865 | return snprintf(buf, 2, "%d\n", wacom->led.select[SET_ID]); \ |
| 866 | } \ |
| 867 | static DEVICE_ATTR(status_led##SET_ID##_select, S_IWUSR | S_IRUSR, \ |
| 868 | wacom_led##SET_ID##_select_show, \ |
Ping Cheng | 09e7d94 | 2011-10-04 23:51:14 -0700 | [diff] [blame] | 869 | wacom_led##SET_ID##_select_store) |
| 870 | |
| 871 | DEVICE_LED_SELECT_ATTR(0); |
| 872 | DEVICE_LED_SELECT_ATTR(1); |
Eduard Hasenleithner | 5d7e7d4 | 2011-09-07 14:08:54 -0700 | [diff] [blame] | 873 | |
| 874 | static ssize_t wacom_luminance_store(struct wacom *wacom, u8 *dest, |
| 875 | const char *buf, size_t count) |
| 876 | { |
| 877 | unsigned int value; |
| 878 | int err; |
| 879 | |
| 880 | err = kstrtouint(buf, 10, &value); |
| 881 | if (err) |
| 882 | return err; |
| 883 | |
| 884 | mutex_lock(&wacom->lock); |
| 885 | |
| 886 | *dest = value & 0x7f; |
| 887 | err = wacom_led_control(wacom); |
| 888 | |
| 889 | mutex_unlock(&wacom->lock); |
| 890 | |
| 891 | return err < 0 ? err : count; |
| 892 | } |
| 893 | |
| 894 | #define DEVICE_LUMINANCE_ATTR(name, field) \ |
| 895 | static ssize_t wacom_##name##_luminance_store(struct device *dev, \ |
| 896 | struct device_attribute *attr, const char *buf, size_t count) \ |
| 897 | { \ |
| 898 | struct wacom *wacom = dev_get_drvdata(dev); \ |
| 899 | \ |
| 900 | return wacom_luminance_store(wacom, &wacom->led.field, \ |
| 901 | buf, count); \ |
| 902 | } \ |
| 903 | static DEVICE_ATTR(name##_luminance, S_IWUSR, \ |
| 904 | NULL, wacom_##name##_luminance_store) |
| 905 | |
| 906 | DEVICE_LUMINANCE_ATTR(status0, llv); |
| 907 | DEVICE_LUMINANCE_ATTR(status1, hlv); |
| 908 | DEVICE_LUMINANCE_ATTR(buttons, img_lum); |
| 909 | |
| 910 | static ssize_t wacom_button_image_store(struct device *dev, int button_id, |
| 911 | const char *buf, size_t count) |
| 912 | { |
| 913 | struct wacom *wacom = dev_get_drvdata(dev); |
| 914 | int err; |
| 915 | |
| 916 | if (count != 1024) |
| 917 | return -EINVAL; |
| 918 | |
| 919 | mutex_lock(&wacom->lock); |
| 920 | |
| 921 | err = wacom_led_putimage(wacom, button_id, buf); |
| 922 | |
| 923 | mutex_unlock(&wacom->lock); |
| 924 | |
| 925 | return err < 0 ? err : count; |
| 926 | } |
| 927 | |
| 928 | #define DEVICE_BTNIMG_ATTR(BUTTON_ID) \ |
| 929 | static ssize_t wacom_btnimg##BUTTON_ID##_store(struct device *dev, \ |
| 930 | struct device_attribute *attr, const char *buf, size_t count) \ |
| 931 | { \ |
| 932 | return wacom_button_image_store(dev, BUTTON_ID, buf, count); \ |
| 933 | } \ |
| 934 | static DEVICE_ATTR(button##BUTTON_ID##_rawimg, S_IWUSR, \ |
| 935 | NULL, wacom_btnimg##BUTTON_ID##_store) |
| 936 | |
| 937 | DEVICE_BTNIMG_ATTR(0); |
| 938 | DEVICE_BTNIMG_ATTR(1); |
| 939 | DEVICE_BTNIMG_ATTR(2); |
| 940 | DEVICE_BTNIMG_ATTR(3); |
| 941 | DEVICE_BTNIMG_ATTR(4); |
| 942 | DEVICE_BTNIMG_ATTR(5); |
| 943 | DEVICE_BTNIMG_ATTR(6); |
| 944 | DEVICE_BTNIMG_ATTR(7); |
| 945 | |
Ping Cheng | 09e7d94 | 2011-10-04 23:51:14 -0700 | [diff] [blame] | 946 | static struct attribute *cintiq_led_attrs[] = { |
| 947 | &dev_attr_status_led0_select.attr, |
| 948 | &dev_attr_status_led1_select.attr, |
| 949 | NULL |
| 950 | }; |
| 951 | |
| 952 | static struct attribute_group cintiq_led_attr_group = { |
| 953 | .name = "wacom_led", |
| 954 | .attrs = cintiq_led_attrs, |
| 955 | }; |
| 956 | |
| 957 | static struct attribute *intuos4_led_attrs[] = { |
Eduard Hasenleithner | 5d7e7d4 | 2011-09-07 14:08:54 -0700 | [diff] [blame] | 958 | &dev_attr_status0_luminance.attr, |
| 959 | &dev_attr_status1_luminance.attr, |
Ping Cheng | 09e7d94 | 2011-10-04 23:51:14 -0700 | [diff] [blame] | 960 | &dev_attr_status_led0_select.attr, |
Eduard Hasenleithner | 5d7e7d4 | 2011-09-07 14:08:54 -0700 | [diff] [blame] | 961 | &dev_attr_buttons_luminance.attr, |
| 962 | &dev_attr_button0_rawimg.attr, |
| 963 | &dev_attr_button1_rawimg.attr, |
| 964 | &dev_attr_button2_rawimg.attr, |
| 965 | &dev_attr_button3_rawimg.attr, |
| 966 | &dev_attr_button4_rawimg.attr, |
| 967 | &dev_attr_button5_rawimg.attr, |
| 968 | &dev_attr_button6_rawimg.attr, |
| 969 | &dev_attr_button7_rawimg.attr, |
| 970 | NULL |
| 971 | }; |
| 972 | |
Ping Cheng | 09e7d94 | 2011-10-04 23:51:14 -0700 | [diff] [blame] | 973 | static struct attribute_group intuos4_led_attr_group = { |
Eduard Hasenleithner | 5d7e7d4 | 2011-09-07 14:08:54 -0700 | [diff] [blame] | 974 | .name = "wacom_led", |
Ping Cheng | 09e7d94 | 2011-10-04 23:51:14 -0700 | [diff] [blame] | 975 | .attrs = intuos4_led_attrs, |
Eduard Hasenleithner | 5d7e7d4 | 2011-09-07 14:08:54 -0700 | [diff] [blame] | 976 | }; |
| 977 | |
Jason Gerecke | 9b5b95d | 2012-04-03 15:50:37 -0700 | [diff] [blame] | 978 | static struct attribute *intuos5_led_attrs[] = { |
| 979 | &dev_attr_status0_luminance.attr, |
| 980 | &dev_attr_status_led0_select.attr, |
| 981 | NULL |
| 982 | }; |
| 983 | |
| 984 | static struct attribute_group intuos5_led_attr_group = { |
| 985 | .name = "wacom_led", |
| 986 | .attrs = intuos5_led_attrs, |
| 987 | }; |
| 988 | |
Eduard Hasenleithner | 5d7e7d4 | 2011-09-07 14:08:54 -0700 | [diff] [blame] | 989 | static int wacom_initialize_leds(struct wacom *wacom) |
| 990 | { |
| 991 | int error; |
| 992 | |
Ping Cheng | 09e7d94 | 2011-10-04 23:51:14 -0700 | [diff] [blame] | 993 | /* Initialize default values */ |
| 994 | switch (wacom->wacom_wac.features.type) { |
Jason Gerecke | a19fc98 | 2012-06-12 00:27:53 -0700 | [diff] [blame] | 995 | case INTUOS4S: |
Ping Cheng | 09e7d94 | 2011-10-04 23:51:14 -0700 | [diff] [blame] | 996 | case INTUOS4: |
| 997 | case INTUOS4L: |
| 998 | wacom->led.select[0] = 0; |
| 999 | wacom->led.select[1] = 0; |
Ping Cheng | f4fa9a6 | 2011-10-04 23:49:42 -0700 | [diff] [blame] | 1000 | wacom->led.llv = 10; |
Eduard Hasenleithner | 5d7e7d4 | 2011-09-07 14:08:54 -0700 | [diff] [blame] | 1001 | wacom->led.hlv = 20; |
| 1002 | wacom->led.img_lum = 10; |
Ping Cheng | 09e7d94 | 2011-10-04 23:51:14 -0700 | [diff] [blame] | 1003 | error = sysfs_create_group(&wacom->intf->dev.kobj, |
| 1004 | &intuos4_led_attr_group); |
| 1005 | break; |
| 1006 | |
Jason Gerecke | 246835f | 2011-12-12 00:12:04 -0800 | [diff] [blame] | 1007 | case WACOM_24HD: |
Ping Cheng | 09e7d94 | 2011-10-04 23:51:14 -0700 | [diff] [blame] | 1008 | case WACOM_21UX2: |
| 1009 | wacom->led.select[0] = 0; |
| 1010 | wacom->led.select[1] = 0; |
| 1011 | wacom->led.llv = 0; |
| 1012 | wacom->led.hlv = 0; |
| 1013 | wacom->led.img_lum = 0; |
Eduard Hasenleithner | 5d7e7d4 | 2011-09-07 14:08:54 -0700 | [diff] [blame] | 1014 | |
| 1015 | error = sysfs_create_group(&wacom->intf->dev.kobj, |
Ping Cheng | 09e7d94 | 2011-10-04 23:51:14 -0700 | [diff] [blame] | 1016 | &cintiq_led_attr_group); |
| 1017 | break; |
| 1018 | |
Jason Gerecke | 9b5b95d | 2012-04-03 15:50:37 -0700 | [diff] [blame] | 1019 | case INTUOS5S: |
| 1020 | case INTUOS5: |
| 1021 | case INTUOS5L: |
| 1022 | wacom->led.select[0] = 0; |
| 1023 | wacom->led.select[1] = 0; |
| 1024 | wacom->led.llv = 32; |
| 1025 | wacom->led.hlv = 0; |
| 1026 | wacom->led.img_lum = 0; |
| 1027 | |
| 1028 | error = sysfs_create_group(&wacom->intf->dev.kobj, |
| 1029 | &intuos5_led_attr_group); |
| 1030 | break; |
| 1031 | |
Ping Cheng | 09e7d94 | 2011-10-04 23:51:14 -0700 | [diff] [blame] | 1032 | default: |
| 1033 | return 0; |
Eduard Hasenleithner | 5d7e7d4 | 2011-09-07 14:08:54 -0700 | [diff] [blame] | 1034 | } |
| 1035 | |
Ping Cheng | 09e7d94 | 2011-10-04 23:51:14 -0700 | [diff] [blame] | 1036 | if (error) { |
| 1037 | dev_err(&wacom->intf->dev, |
| 1038 | "cannot create sysfs group err: %d\n", error); |
| 1039 | return error; |
| 1040 | } |
| 1041 | wacom_led_control(wacom); |
| 1042 | |
Eduard Hasenleithner | 5d7e7d4 | 2011-09-07 14:08:54 -0700 | [diff] [blame] | 1043 | return 0; |
| 1044 | } |
| 1045 | |
| 1046 | static void wacom_destroy_leds(struct wacom *wacom) |
| 1047 | { |
Ping Cheng | 09e7d94 | 2011-10-04 23:51:14 -0700 | [diff] [blame] | 1048 | switch (wacom->wacom_wac.features.type) { |
Jason Gerecke | a19fc98 | 2012-06-12 00:27:53 -0700 | [diff] [blame] | 1049 | case INTUOS4S: |
Ping Cheng | 09e7d94 | 2011-10-04 23:51:14 -0700 | [diff] [blame] | 1050 | case INTUOS4: |
| 1051 | case INTUOS4L: |
Eduard Hasenleithner | 5d7e7d4 | 2011-09-07 14:08:54 -0700 | [diff] [blame] | 1052 | sysfs_remove_group(&wacom->intf->dev.kobj, |
Ping Cheng | 09e7d94 | 2011-10-04 23:51:14 -0700 | [diff] [blame] | 1053 | &intuos4_led_attr_group); |
| 1054 | break; |
| 1055 | |
Jason Gerecke | 246835f | 2011-12-12 00:12:04 -0800 | [diff] [blame] | 1056 | case WACOM_24HD: |
Ping Cheng | 09e7d94 | 2011-10-04 23:51:14 -0700 | [diff] [blame] | 1057 | case WACOM_21UX2: |
| 1058 | sysfs_remove_group(&wacom->intf->dev.kobj, |
| 1059 | &cintiq_led_attr_group); |
| 1060 | break; |
Jason Gerecke | 9b5b95d | 2012-04-03 15:50:37 -0700 | [diff] [blame] | 1061 | |
| 1062 | case INTUOS5S: |
| 1063 | case INTUOS5: |
| 1064 | case INTUOS5L: |
| 1065 | sysfs_remove_group(&wacom->intf->dev.kobj, |
| 1066 | &intuos5_led_attr_group); |
| 1067 | break; |
Eduard Hasenleithner | 5d7e7d4 | 2011-09-07 14:08:54 -0700 | [diff] [blame] | 1068 | } |
| 1069 | } |
| 1070 | |
Chris Bagwell | a1d552c | 2012-03-25 23:26:30 -0700 | [diff] [blame] | 1071 | static enum power_supply_property wacom_battery_props[] = { |
| 1072 | POWER_SUPPLY_PROP_CAPACITY |
| 1073 | }; |
| 1074 | |
| 1075 | static int wacom_battery_get_property(struct power_supply *psy, |
| 1076 | enum power_supply_property psp, |
| 1077 | union power_supply_propval *val) |
| 1078 | { |
| 1079 | struct wacom *wacom = container_of(psy, struct wacom, battery); |
| 1080 | int ret = 0; |
| 1081 | |
| 1082 | switch (psp) { |
| 1083 | case POWER_SUPPLY_PROP_CAPACITY: |
| 1084 | val->intval = |
| 1085 | wacom->wacom_wac.battery_capacity * 100 / 31; |
| 1086 | break; |
| 1087 | default: |
| 1088 | ret = -EINVAL; |
| 1089 | break; |
| 1090 | } |
| 1091 | |
| 1092 | return ret; |
| 1093 | } |
| 1094 | |
| 1095 | static int wacom_initialize_battery(struct wacom *wacom) |
| 1096 | { |
| 1097 | int error = 0; |
| 1098 | |
| 1099 | if (wacom->wacom_wac.features.quirks & WACOM_QUIRK_MONITOR) { |
| 1100 | wacom->battery.properties = wacom_battery_props; |
| 1101 | wacom->battery.num_properties = ARRAY_SIZE(wacom_battery_props); |
| 1102 | wacom->battery.get_property = wacom_battery_get_property; |
| 1103 | wacom->battery.name = "wacom_battery"; |
| 1104 | wacom->battery.type = POWER_SUPPLY_TYPE_BATTERY; |
| 1105 | wacom->battery.use_for_apm = 0; |
| 1106 | |
| 1107 | error = power_supply_register(&wacom->usbdev->dev, |
| 1108 | &wacom->battery); |
Chris Bagwell | b7af2bb | 2012-06-12 00:25:23 -0700 | [diff] [blame] | 1109 | |
| 1110 | if (!error) |
| 1111 | power_supply_powers(&wacom->battery, |
| 1112 | &wacom->usbdev->dev); |
Chris Bagwell | a1d552c | 2012-03-25 23:26:30 -0700 | [diff] [blame] | 1113 | } |
| 1114 | |
| 1115 | return error; |
| 1116 | } |
| 1117 | |
| 1118 | static void wacom_destroy_battery(struct wacom *wacom) |
| 1119 | { |
Chris Bagwell | b7af2bb | 2012-06-12 00:25:23 -0700 | [diff] [blame] | 1120 | if (wacom->wacom_wac.features.quirks & WACOM_QUIRK_MONITOR && |
| 1121 | wacom->battery.dev) { |
Chris Bagwell | a1d552c | 2012-03-25 23:26:30 -0700 | [diff] [blame] | 1122 | power_supply_unregister(&wacom->battery); |
Chris Bagwell | b7af2bb | 2012-06-12 00:25:23 -0700 | [diff] [blame] | 1123 | wacom->battery.dev = NULL; |
| 1124 | } |
Chris Bagwell | a1d552c | 2012-03-25 23:26:30 -0700 | [diff] [blame] | 1125 | } |
| 1126 | |
Chris Bagwell | 3aac0ef | 2012-03-25 23:25:45 -0700 | [diff] [blame] | 1127 | static int wacom_register_input(struct wacom *wacom) |
| 1128 | { |
| 1129 | struct input_dev *input_dev; |
| 1130 | struct usb_interface *intf = wacom->intf; |
| 1131 | struct usb_device *dev = interface_to_usbdev(intf); |
| 1132 | struct wacom_wac *wacom_wac = &(wacom->wacom_wac); |
| 1133 | int error; |
| 1134 | |
| 1135 | input_dev = input_allocate_device(); |
Ping Cheng | 1963518 | 2012-04-29 21:09:18 -0700 | [diff] [blame] | 1136 | if (!input_dev) { |
| 1137 | error = -ENOMEM; |
| 1138 | goto fail1; |
| 1139 | } |
Chris Bagwell | 3aac0ef | 2012-03-25 23:25:45 -0700 | [diff] [blame] | 1140 | |
| 1141 | input_dev->name = wacom_wac->name; |
| 1142 | input_dev->dev.parent = &intf->dev; |
| 1143 | input_dev->open = wacom_open; |
| 1144 | input_dev->close = wacom_close; |
| 1145 | usb_to_input_id(dev, &input_dev->id); |
| 1146 | input_set_drvdata(input_dev, wacom); |
| 1147 | |
| 1148 | wacom_wac->input = input_dev; |
Ping Cheng | 1963518 | 2012-04-29 21:09:18 -0700 | [diff] [blame] | 1149 | error = wacom_setup_input_capabilities(input_dev, wacom_wac); |
| 1150 | if (error) |
| 1151 | goto fail1; |
Chris Bagwell | 3aac0ef | 2012-03-25 23:25:45 -0700 | [diff] [blame] | 1152 | |
| 1153 | error = input_register_device(input_dev); |
Ping Cheng | 1963518 | 2012-04-29 21:09:18 -0700 | [diff] [blame] | 1154 | if (error) |
| 1155 | goto fail2; |
Chris Bagwell | 3aac0ef | 2012-03-25 23:25:45 -0700 | [diff] [blame] | 1156 | |
Ping Cheng | 1963518 | 2012-04-29 21:09:18 -0700 | [diff] [blame] | 1157 | return 0; |
| 1158 | |
| 1159 | fail2: |
| 1160 | input_free_device(input_dev); |
| 1161 | wacom_wac->input = NULL; |
| 1162 | fail1: |
Chris Bagwell | 3aac0ef | 2012-03-25 23:25:45 -0700 | [diff] [blame] | 1163 | return error; |
| 1164 | } |
| 1165 | |
Chris Bagwell | 16bf288 | 2012-03-25 23:26:20 -0700 | [diff] [blame] | 1166 | static void wacom_wireless_work(struct work_struct *work) |
| 1167 | { |
| 1168 | struct wacom *wacom = container_of(work, struct wacom, work); |
| 1169 | struct usb_device *usbdev = wacom->usbdev; |
| 1170 | struct wacom_wac *wacom_wac = &wacom->wacom_wac; |
Chris Bagwell | b7af2bb | 2012-06-12 00:25:23 -0700 | [diff] [blame] | 1171 | struct wacom *wacom1, *wacom2; |
| 1172 | struct wacom_wac *wacom_wac1, *wacom_wac2; |
| 1173 | int error; |
Chris Bagwell | 16bf288 | 2012-03-25 23:26:20 -0700 | [diff] [blame] | 1174 | |
| 1175 | /* |
| 1176 | * Regardless if this is a disconnect or a new tablet, |
Chris Bagwell | b7af2bb | 2012-06-12 00:25:23 -0700 | [diff] [blame] | 1177 | * remove any existing input and battery devices. |
Chris Bagwell | 16bf288 | 2012-03-25 23:26:20 -0700 | [diff] [blame] | 1178 | */ |
| 1179 | |
Chris Bagwell | b7af2bb | 2012-06-12 00:25:23 -0700 | [diff] [blame] | 1180 | wacom_destroy_battery(wacom); |
| 1181 | |
Chris Bagwell | 16bf288 | 2012-03-25 23:26:20 -0700 | [diff] [blame] | 1182 | /* Stylus interface */ |
Chris Bagwell | b7af2bb | 2012-06-12 00:25:23 -0700 | [diff] [blame] | 1183 | wacom1 = usb_get_intfdata(usbdev->config->interface[1]); |
| 1184 | wacom_wac1 = &(wacom1->wacom_wac); |
| 1185 | if (wacom_wac1->input) |
| 1186 | input_unregister_device(wacom_wac1->input); |
| 1187 | wacom_wac1->input = NULL; |
Chris Bagwell | 16bf288 | 2012-03-25 23:26:20 -0700 | [diff] [blame] | 1188 | |
| 1189 | /* Touch interface */ |
Chris Bagwell | b7af2bb | 2012-06-12 00:25:23 -0700 | [diff] [blame] | 1190 | wacom2 = usb_get_intfdata(usbdev->config->interface[2]); |
| 1191 | wacom_wac2 = &(wacom2->wacom_wac); |
| 1192 | if (wacom_wac2->input) |
| 1193 | input_unregister_device(wacom_wac2->input); |
| 1194 | wacom_wac2->input = NULL; |
Chris Bagwell | 16bf288 | 2012-03-25 23:26:20 -0700 | [diff] [blame] | 1195 | |
| 1196 | if (wacom_wac->pid == 0) { |
Dmitry Torokhov | eb71d1b | 2012-05-02 00:13:38 -0700 | [diff] [blame] | 1197 | dev_info(&wacom->intf->dev, "wireless tablet disconnected\n"); |
Chris Bagwell | 16bf288 | 2012-03-25 23:26:20 -0700 | [diff] [blame] | 1198 | } else { |
| 1199 | const struct usb_device_id *id = wacom_ids; |
| 1200 | |
Dmitry Torokhov | eb71d1b | 2012-05-02 00:13:38 -0700 | [diff] [blame] | 1201 | dev_info(&wacom->intf->dev, |
| 1202 | "wireless tablet connected with PID %x\n", |
| 1203 | wacom_wac->pid); |
Chris Bagwell | 16bf288 | 2012-03-25 23:26:20 -0700 | [diff] [blame] | 1204 | |
| 1205 | while (id->match_flags) { |
| 1206 | if (id->idVendor == USB_VENDOR_ID_WACOM && |
| 1207 | id->idProduct == wacom_wac->pid) |
| 1208 | break; |
| 1209 | id++; |
| 1210 | } |
| 1211 | |
| 1212 | if (!id->match_flags) { |
Dmitry Torokhov | eb71d1b | 2012-05-02 00:13:38 -0700 | [diff] [blame] | 1213 | dev_info(&wacom->intf->dev, |
| 1214 | "ignoring unknown PID.\n"); |
Chris Bagwell | 16bf288 | 2012-03-25 23:26:20 -0700 | [diff] [blame] | 1215 | return; |
| 1216 | } |
| 1217 | |
| 1218 | /* Stylus interface */ |
Chris Bagwell | b7af2bb | 2012-06-12 00:25:23 -0700 | [diff] [blame] | 1219 | wacom_wac1->features = |
Chris Bagwell | 16bf288 | 2012-03-25 23:26:20 -0700 | [diff] [blame] | 1220 | *((struct wacom_features *)id->driver_info); |
Chris Bagwell | b7af2bb | 2012-06-12 00:25:23 -0700 | [diff] [blame] | 1221 | wacom_wac1->features.device_type = BTN_TOOL_PEN; |
| 1222 | error = wacom_register_input(wacom1); |
| 1223 | if (error) |
| 1224 | goto fail1; |
Chris Bagwell | 16bf288 | 2012-03-25 23:26:20 -0700 | [diff] [blame] | 1225 | |
| 1226 | /* Touch interface */ |
Chris Bagwell | b7af2bb | 2012-06-12 00:25:23 -0700 | [diff] [blame] | 1227 | wacom_wac2->features = |
Chris Bagwell | 16bf288 | 2012-03-25 23:26:20 -0700 | [diff] [blame] | 1228 | *((struct wacom_features *)id->driver_info); |
Chris Bagwell | b7af2bb | 2012-06-12 00:25:23 -0700 | [diff] [blame] | 1229 | wacom_wac2->features.pktlen = WACOM_PKGLEN_BBTOUCH3; |
| 1230 | wacom_wac2->features.device_type = BTN_TOOL_FINGER; |
| 1231 | wacom_set_phy_from_res(&wacom_wac2->features); |
| 1232 | wacom_wac2->features.x_max = wacom_wac2->features.y_max = 4096; |
| 1233 | error = wacom_register_input(wacom2); |
| 1234 | if (error) |
| 1235 | goto fail2; |
| 1236 | |
| 1237 | error = wacom_initialize_battery(wacom); |
| 1238 | if (error) |
| 1239 | goto fail3; |
Chris Bagwell | 16bf288 | 2012-03-25 23:26:20 -0700 | [diff] [blame] | 1240 | } |
Chris Bagwell | b7af2bb | 2012-06-12 00:25:23 -0700 | [diff] [blame] | 1241 | |
| 1242 | return; |
| 1243 | |
| 1244 | fail3: |
| 1245 | input_unregister_device(wacom_wac2->input); |
| 1246 | wacom_wac2->input = NULL; |
| 1247 | fail2: |
| 1248 | input_unregister_device(wacom_wac1->input); |
| 1249 | wacom_wac1->input = NULL; |
| 1250 | fail1: |
| 1251 | return; |
Chris Bagwell | 16bf288 | 2012-03-25 23:26:20 -0700 | [diff] [blame] | 1252 | } |
| 1253 | |
Ping Cheng | 3bea733 | 2006-07-13 18:01:36 -0700 | [diff] [blame] | 1254 | static int wacom_probe(struct usb_interface *intf, const struct usb_device_id *id) |
| 1255 | { |
| 1256 | struct usb_device *dev = interface_to_usbdev(intf); |
| 1257 | struct usb_endpoint_descriptor *endpoint; |
| 1258 | struct wacom *wacom; |
| 1259 | struct wacom_wac *wacom_wac; |
Jason Childs | e33da8a | 2010-02-17 22:38:31 -0800 | [diff] [blame] | 1260 | struct wacom_features *features; |
Jason Childs | e33da8a | 2010-02-17 22:38:31 -0800 | [diff] [blame] | 1261 | int error; |
Ping Cheng | 3bea733 | 2006-07-13 18:01:36 -0700 | [diff] [blame] | 1262 | |
Jason Childs | e33da8a | 2010-02-17 22:38:31 -0800 | [diff] [blame] | 1263 | if (!id->driver_info) |
Bastian Blank | b036f6f | 2010-02-10 23:06:23 -0800 | [diff] [blame] | 1264 | return -EINVAL; |
| 1265 | |
Ping Cheng | 3bea733 | 2006-07-13 18:01:36 -0700 | [diff] [blame] | 1266 | wacom = kzalloc(sizeof(struct wacom), GFP_KERNEL); |
Dan Carpenter | f182394 | 2012-03-29 22:38:11 -0700 | [diff] [blame] | 1267 | if (!wacom) |
| 1268 | return -ENOMEM; |
Ping Cheng | 3bea733 | 2006-07-13 18:01:36 -0700 | [diff] [blame] | 1269 | |
Dmitry Torokhov | 51269fe | 2010-03-19 22:18:15 -0700 | [diff] [blame] | 1270 | wacom_wac = &wacom->wacom_wac; |
Jason Childs | e33da8a | 2010-02-17 22:38:31 -0800 | [diff] [blame] | 1271 | wacom_wac->features = *((struct wacom_features *)id->driver_info); |
| 1272 | features = &wacom_wac->features; |
| 1273 | if (features->pktlen > WACOM_PKGLEN_MAX) { |
| 1274 | error = -EINVAL; |
Ping Cheng | 3bea733 | 2006-07-13 18:01:36 -0700 | [diff] [blame] | 1275 | goto fail1; |
Jason Childs | e33da8a | 2010-02-17 22:38:31 -0800 | [diff] [blame] | 1276 | } |
| 1277 | |
Daniel Mack | 997ea58 | 2010-04-12 13:17:25 +0200 | [diff] [blame] | 1278 | wacom_wac->data = usb_alloc_coherent(dev, WACOM_PKGLEN_MAX, |
| 1279 | GFP_KERNEL, &wacom->data_dma); |
Jason Childs | e33da8a | 2010-02-17 22:38:31 -0800 | [diff] [blame] | 1280 | if (!wacom_wac->data) { |
| 1281 | error = -ENOMEM; |
| 1282 | goto fail1; |
| 1283 | } |
Ping Cheng | 3bea733 | 2006-07-13 18:01:36 -0700 | [diff] [blame] | 1284 | |
| 1285 | wacom->irq = usb_alloc_urb(0, GFP_KERNEL); |
Jason Childs | e33da8a | 2010-02-17 22:38:31 -0800 | [diff] [blame] | 1286 | if (!wacom->irq) { |
| 1287 | error = -ENOMEM; |
Ping Cheng | 3bea733 | 2006-07-13 18:01:36 -0700 | [diff] [blame] | 1288 | goto fail2; |
Jason Childs | e33da8a | 2010-02-17 22:38:31 -0800 | [diff] [blame] | 1289 | } |
Ping Cheng | 3bea733 | 2006-07-13 18:01:36 -0700 | [diff] [blame] | 1290 | |
| 1291 | wacom->usbdev = dev; |
Oliver Neukum | e722409 | 2008-04-15 01:31:57 -0400 | [diff] [blame] | 1292 | wacom->intf = intf; |
| 1293 | mutex_init(&wacom->lock); |
Chris Bagwell | 16bf288 | 2012-03-25 23:26:20 -0700 | [diff] [blame] | 1294 | INIT_WORK(&wacom->work, wacom_wireless_work); |
Ping Cheng | 3bea733 | 2006-07-13 18:01:36 -0700 | [diff] [blame] | 1295 | usb_make_path(dev, wacom->phys, sizeof(wacom->phys)); |
| 1296 | strlcat(wacom->phys, "/input0", sizeof(wacom->phys)); |
| 1297 | |
Ping Cheng | 545f4e9 | 2008-11-24 11:44:27 -0500 | [diff] [blame] | 1298 | endpoint = &intf->cur_altsetting->endpoint[0].desc; |
| 1299 | |
Ping Cheng | f393ee2 | 2012-04-29 21:09:17 -0700 | [diff] [blame] | 1300 | /* Retrieve the physical and logical size for touch devices */ |
Ping Cheng | ec67bbe | 2009-12-15 00:35:24 -0800 | [diff] [blame] | 1301 | error = wacom_retrieve_hid_descriptor(intf, features); |
| 1302 | if (error) |
Alexander Strakh | 4b6d443 | 2011-02-11 00:44:41 -0800 | [diff] [blame] | 1303 | goto fail3; |
Ping Cheng | 545f4e9 | 2008-11-24 11:44:27 -0500 | [diff] [blame] | 1304 | |
Jason Gerecke | ae584ca | 2012-04-03 15:50:40 -0700 | [diff] [blame] | 1305 | /* |
| 1306 | * Intuos5 has no useful data about its touch interface in its |
| 1307 | * HID descriptor. If this is the touch interface (wMaxPacketSize |
| 1308 | * of WACOM_PKGLEN_BBTOUCH3), override the table values. |
| 1309 | */ |
| 1310 | if (features->type >= INTUOS5S && features->type <= INTUOS5L) { |
| 1311 | if (endpoint->wMaxPacketSize == WACOM_PKGLEN_BBTOUCH3) { |
| 1312 | features->device_type = BTN_TOOL_FINGER; |
| 1313 | features->pktlen = WACOM_PKGLEN_BBTOUCH3; |
| 1314 | |
Jason Gerecke | 32edbf56 | 2012-06-12 00:28:37 -0700 | [diff] [blame] | 1315 | wacom_set_phy_from_res(features); |
Jason Gerecke | ae584ca | 2012-04-03 15:50:40 -0700 | [diff] [blame] | 1316 | |
| 1317 | features->x_max = 4096; |
| 1318 | features->y_max = 4096; |
| 1319 | } else { |
| 1320 | features->device_type = BTN_TOOL_PEN; |
| 1321 | } |
| 1322 | } |
| 1323 | |
Henrik Rydberg | bc73dd3 | 2010-09-05 12:26:16 -0700 | [diff] [blame] | 1324 | wacom_setup_device_quirks(features); |
| 1325 | |
Ping Cheng | 49b764a | 2010-02-20 00:53:49 -0800 | [diff] [blame] | 1326 | strlcpy(wacom_wac->name, features->name, sizeof(wacom_wac->name)); |
| 1327 | |
Henrik Rydberg | bc73dd3 | 2010-09-05 12:26:16 -0700 | [diff] [blame] | 1328 | if (features->quirks & WACOM_QUIRK_MULTI_INPUT) { |
Jason Gerecke | aea2bf6 | 2012-10-21 00:38:03 -0700 | [diff] [blame] | 1329 | struct usb_device *other_dev; |
| 1330 | |
Ping Cheng | 49b764a | 2010-02-20 00:53:49 -0800 | [diff] [blame] | 1331 | /* Append the device type to the name */ |
| 1332 | strlcat(wacom_wac->name, |
| 1333 | features->device_type == BTN_TOOL_PEN ? |
| 1334 | " Pen" : " Finger", |
| 1335 | sizeof(wacom_wac->name)); |
Ping Cheng | 4492eff | 2010-03-19 22:18:15 -0700 | [diff] [blame] | 1336 | |
Jason Gerecke | aea2bf6 | 2012-10-21 00:38:03 -0700 | [diff] [blame] | 1337 | |
| 1338 | other_dev = wacom_get_sibling(dev, features->oVid, features->oPid); |
| 1339 | if (other_dev == NULL || wacom_get_usbdev_data(other_dev) == NULL) |
| 1340 | other_dev = dev; |
| 1341 | error = wacom_add_shared_data(wacom_wac, other_dev); |
Ping Cheng | 4492eff | 2010-03-19 22:18:15 -0700 | [diff] [blame] | 1342 | if (error) |
| 1343 | goto fail3; |
Ping Cheng | 49b764a | 2010-02-20 00:53:49 -0800 | [diff] [blame] | 1344 | } |
| 1345 | |
Ping Cheng | 3bea733 | 2006-07-13 18:01:36 -0700 | [diff] [blame] | 1346 | usb_fill_int_urb(wacom->irq, dev, |
| 1347 | usb_rcvintpipe(dev, endpoint->bEndpointAddress), |
Ping Cheng | ec67bbe | 2009-12-15 00:35:24 -0800 | [diff] [blame] | 1348 | wacom_wac->data, features->pktlen, |
Ping Cheng | 8d32e3a | 2006-09-26 13:34:47 -0700 | [diff] [blame] | 1349 | wacom_sys_irq, wacom, endpoint->bInterval); |
Ping Cheng | 3bea733 | 2006-07-13 18:01:36 -0700 | [diff] [blame] | 1350 | wacom->irq->transfer_dma = wacom->data_dma; |
| 1351 | wacom->irq->transfer_flags |= URB_NO_TRANSFER_DMA_MAP; |
| 1352 | |
Eduard Hasenleithner | 5d7e7d4 | 2011-09-07 14:08:54 -0700 | [diff] [blame] | 1353 | error = wacom_initialize_leds(wacom); |
Dmitry Torokhov | 5014186 | 2007-04-12 01:33:39 -0400 | [diff] [blame] | 1354 | if (error) |
Ping Cheng | 4492eff | 2010-03-19 22:18:15 -0700 | [diff] [blame] | 1355 | goto fail4; |
Ping Cheng | 3bea733 | 2006-07-13 18:01:36 -0700 | [diff] [blame] | 1356 | |
Chris Bagwell | d3825d5 | 2012-03-25 23:26:11 -0700 | [diff] [blame] | 1357 | if (!(features->quirks & WACOM_QUIRK_NO_INPUT)) { |
| 1358 | error = wacom_register_input(wacom); |
| 1359 | if (error) |
Chris Bagwell | b7af2bb | 2012-06-12 00:25:23 -0700 | [diff] [blame] | 1360 | goto fail5; |
Chris Bagwell | d3825d5 | 2012-03-25 23:26:11 -0700 | [diff] [blame] | 1361 | } |
Eduard Hasenleithner | 5d7e7d4 | 2011-09-07 14:08:54 -0700 | [diff] [blame] | 1362 | |
Ping Cheng | ec67bbe | 2009-12-15 00:35:24 -0800 | [diff] [blame] | 1363 | /* Note that if query fails it is not a hard failure */ |
| 1364 | wacom_query_tablet_data(intf, features); |
Ping Cheng | 3bea733 | 2006-07-13 18:01:36 -0700 | [diff] [blame] | 1365 | |
| 1366 | usb_set_intfdata(intf, wacom); |
Chris Bagwell | d3825d5 | 2012-03-25 23:26:11 -0700 | [diff] [blame] | 1367 | |
| 1368 | if (features->quirks & WACOM_QUIRK_MONITOR) { |
| 1369 | if (usb_submit_urb(wacom->irq, GFP_KERNEL)) |
| 1370 | goto fail5; |
| 1371 | } |
| 1372 | |
Ping Cheng | 3bea733 | 2006-07-13 18:01:36 -0700 | [diff] [blame] | 1373 | return 0; |
| 1374 | |
Eduard Hasenleithner | 5d7e7d4 | 2011-09-07 14:08:54 -0700 | [diff] [blame] | 1375 | fail5: wacom_destroy_leds(wacom); |
Ping Cheng | 4492eff | 2010-03-19 22:18:15 -0700 | [diff] [blame] | 1376 | fail4: wacom_remove_shared_data(wacom_wac); |
Dmitry Torokhov | 5014186 | 2007-04-12 01:33:39 -0400 | [diff] [blame] | 1377 | fail3: usb_free_urb(wacom->irq); |
Daniel Mack | 997ea58 | 2010-04-12 13:17:25 +0200 | [diff] [blame] | 1378 | fail2: usb_free_coherent(dev, WACOM_PKGLEN_MAX, wacom_wac->data, wacom->data_dma); |
Chris Bagwell | 3aac0ef | 2012-03-25 23:25:45 -0700 | [diff] [blame] | 1379 | fail1: kfree(wacom); |
Dmitry Torokhov | 5014186 | 2007-04-12 01:33:39 -0400 | [diff] [blame] | 1380 | return error; |
Ping Cheng | 3bea733 | 2006-07-13 18:01:36 -0700 | [diff] [blame] | 1381 | } |
| 1382 | |
| 1383 | static void wacom_disconnect(struct usb_interface *intf) |
| 1384 | { |
Oliver Neukum | e722409 | 2008-04-15 01:31:57 -0400 | [diff] [blame] | 1385 | struct wacom *wacom = usb_get_intfdata(intf); |
Ping Cheng | 3bea733 | 2006-07-13 18:01:36 -0700 | [diff] [blame] | 1386 | |
| 1387 | usb_set_intfdata(intf, NULL); |
Oliver Neukum | e722409 | 2008-04-15 01:31:57 -0400 | [diff] [blame] | 1388 | |
| 1389 | usb_kill_urb(wacom->irq); |
Chris Bagwell | 16bf288 | 2012-03-25 23:26:20 -0700 | [diff] [blame] | 1390 | cancel_work_sync(&wacom->work); |
Chris Bagwell | d3825d5 | 2012-03-25 23:26:11 -0700 | [diff] [blame] | 1391 | if (wacom->wacom_wac.input) |
| 1392 | input_unregister_device(wacom->wacom_wac.input); |
Chris Bagwell | a1d552c | 2012-03-25 23:26:30 -0700 | [diff] [blame] | 1393 | wacom_destroy_battery(wacom); |
Eduard Hasenleithner | 5d7e7d4 | 2011-09-07 14:08:54 -0700 | [diff] [blame] | 1394 | wacom_destroy_leds(wacom); |
Oliver Neukum | e722409 | 2008-04-15 01:31:57 -0400 | [diff] [blame] | 1395 | usb_free_urb(wacom->irq); |
Daniel Mack | 997ea58 | 2010-04-12 13:17:25 +0200 | [diff] [blame] | 1396 | usb_free_coherent(interface_to_usbdev(intf), WACOM_PKGLEN_MAX, |
Dmitry Torokhov | 51269fe | 2010-03-19 22:18:15 -0700 | [diff] [blame] | 1397 | wacom->wacom_wac.data, wacom->data_dma); |
| 1398 | wacom_remove_shared_data(&wacom->wacom_wac); |
Oliver Neukum | e722409 | 2008-04-15 01:31:57 -0400 | [diff] [blame] | 1399 | kfree(wacom); |
| 1400 | } |
| 1401 | |
| 1402 | static int wacom_suspend(struct usb_interface *intf, pm_message_t message) |
| 1403 | { |
| 1404 | struct wacom *wacom = usb_get_intfdata(intf); |
| 1405 | |
| 1406 | mutex_lock(&wacom->lock); |
| 1407 | usb_kill_urb(wacom->irq); |
| 1408 | mutex_unlock(&wacom->lock); |
| 1409 | |
| 1410 | return 0; |
| 1411 | } |
| 1412 | |
| 1413 | static int wacom_resume(struct usb_interface *intf) |
| 1414 | { |
| 1415 | struct wacom *wacom = usb_get_intfdata(intf); |
Dmitry Torokhov | 51269fe | 2010-03-19 22:18:15 -0700 | [diff] [blame] | 1416 | struct wacom_features *features = &wacom->wacom_wac.features; |
Eduard Hasenleithner | 5d7e7d4 | 2011-09-07 14:08:54 -0700 | [diff] [blame] | 1417 | int rv = 0; |
Oliver Neukum | e722409 | 2008-04-15 01:31:57 -0400 | [diff] [blame] | 1418 | |
| 1419 | mutex_lock(&wacom->lock); |
Ping Cheng | 3810147 | 2010-04-13 23:07:52 -0700 | [diff] [blame] | 1420 | |
| 1421 | /* switch to wacom mode first */ |
| 1422 | wacom_query_tablet_data(intf, features); |
Eduard Hasenleithner | 5d7e7d4 | 2011-09-07 14:08:54 -0700 | [diff] [blame] | 1423 | wacom_led_control(wacom); |
Ping Cheng | 3810147 | 2010-04-13 23:07:52 -0700 | [diff] [blame] | 1424 | |
Chris Bagwell | d3825d5 | 2012-03-25 23:26:11 -0700 | [diff] [blame] | 1425 | if ((wacom->open || features->quirks & WACOM_QUIRK_MONITOR) |
| 1426 | && usb_submit_urb(wacom->irq, GFP_NOIO) < 0) |
Eduard Hasenleithner | 5d7e7d4 | 2011-09-07 14:08:54 -0700 | [diff] [blame] | 1427 | rv = -EIO; |
Ping Cheng | 3810147 | 2010-04-13 23:07:52 -0700 | [diff] [blame] | 1428 | |
Oliver Neukum | e722409 | 2008-04-15 01:31:57 -0400 | [diff] [blame] | 1429 | mutex_unlock(&wacom->lock); |
| 1430 | |
| 1431 | return rv; |
| 1432 | } |
| 1433 | |
| 1434 | static int wacom_reset_resume(struct usb_interface *intf) |
| 1435 | { |
| 1436 | return wacom_resume(intf); |
Ping Cheng | 3bea733 | 2006-07-13 18:01:36 -0700 | [diff] [blame] | 1437 | } |
| 1438 | |
| 1439 | static struct usb_driver wacom_driver = { |
| 1440 | .name = "wacom", |
Bastian Blank | b036f6f | 2010-02-10 23:06:23 -0800 | [diff] [blame] | 1441 | .id_table = wacom_ids, |
Ping Cheng | 3bea733 | 2006-07-13 18:01:36 -0700 | [diff] [blame] | 1442 | .probe = wacom_probe, |
| 1443 | .disconnect = wacom_disconnect, |
Oliver Neukum | e722409 | 2008-04-15 01:31:57 -0400 | [diff] [blame] | 1444 | .suspend = wacom_suspend, |
| 1445 | .resume = wacom_resume, |
| 1446 | .reset_resume = wacom_reset_resume, |
| 1447 | .supports_autosuspend = 1, |
Ping Cheng | 3bea733 | 2006-07-13 18:01:36 -0700 | [diff] [blame] | 1448 | }; |
| 1449 | |
Greg Kroah-Hartman | 08642e7 | 2011-11-18 09:48:31 -0800 | [diff] [blame] | 1450 | module_usb_driver(wacom_driver); |