Jarod Wilson | 21677cf | 2010-04-16 18:29:02 -0300 | [diff] [blame] | 1 | /* |
| 2 | * imon.c: input and display driver for SoundGraph iMON IR/VFD/LCD |
| 3 | * |
| 4 | * Copyright(C) 2009 Jarod Wilson <jarod@wilsonet.com> |
| 5 | * Portions based on the original lirc_imon driver, |
| 6 | * Copyright(C) 2004 Venky Raju(dev@venky.ws) |
| 7 | * |
| 8 | * Huge thanks to R. Geoff Newbury for invaluable debugging on the |
| 9 | * 0xffdc iMON devices, and for sending me one to hack on, without |
| 10 | * which the support for them wouldn't be nearly as good. Thanks |
| 11 | * also to the numerous 0xffdc device owners that tested auto-config |
| 12 | * support for me and provided debug dumps from their devices. |
| 13 | * |
| 14 | * imon is free software; you can redistribute it and/or modify |
| 15 | * it under the terms of the GNU General Public License as published by |
| 16 | * the Free Software Foundation; either version 2 of the License, or |
| 17 | * (at your option) any later version. |
| 18 | * |
| 19 | * This program is distributed in the hope that it will be useful, |
| 20 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 21 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 22 | * GNU General Public License for more details. |
| 23 | * |
| 24 | * You should have received a copy of the GNU General Public License |
| 25 | * along with this program; if not, write to the Free Software |
| 26 | * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. |
| 27 | */ |
| 28 | |
| 29 | #include <linux/errno.h> |
| 30 | #include <linux/init.h> |
| 31 | #include <linux/kernel.h> |
| 32 | #include <linux/module.h> |
| 33 | #include <linux/slab.h> |
| 34 | #include <linux/uaccess.h> |
| 35 | |
| 36 | #include <linux/input.h> |
| 37 | #include <linux/usb.h> |
| 38 | #include <linux/usb/input.h> |
| 39 | #include <media/ir-core.h> |
| 40 | |
| 41 | #include <linux/time.h> |
| 42 | #include <linux/timer.h> |
| 43 | |
| 44 | #define MOD_AUTHOR "Jarod Wilson <jarod@wilsonet.com>" |
| 45 | #define MOD_DESC "Driver for SoundGraph iMON MultiMedia IR/Display" |
| 46 | #define MOD_NAME "imon" |
| 47 | #define MOD_VERSION "0.9.1" |
| 48 | |
| 49 | #define DISPLAY_MINOR_BASE 144 |
| 50 | #define DEVICE_NAME "lcd%d" |
| 51 | |
| 52 | #define BUF_CHUNK_SIZE 8 |
| 53 | #define BUF_SIZE 128 |
| 54 | |
| 55 | #define BIT_DURATION 250 /* each bit received is 250us */ |
| 56 | |
| 57 | #define IMON_CLOCK_ENABLE_PACKETS 2 |
Jarod Wilson | 21677cf | 2010-04-16 18:29:02 -0300 | [diff] [blame] | 58 | |
| 59 | /*** P R O T O T Y P E S ***/ |
| 60 | |
| 61 | /* USB Callback prototypes */ |
| 62 | static int imon_probe(struct usb_interface *interface, |
| 63 | const struct usb_device_id *id); |
| 64 | static void imon_disconnect(struct usb_interface *interface); |
| 65 | static void usb_rx_callback_intf0(struct urb *urb); |
| 66 | static void usb_rx_callback_intf1(struct urb *urb); |
| 67 | static void usb_tx_callback(struct urb *urb); |
| 68 | |
| 69 | /* suspend/resume support */ |
| 70 | static int imon_resume(struct usb_interface *intf); |
| 71 | static int imon_suspend(struct usb_interface *intf, pm_message_t message); |
| 72 | |
| 73 | /* Display file_operations function prototypes */ |
| 74 | static int display_open(struct inode *inode, struct file *file); |
| 75 | static int display_close(struct inode *inode, struct file *file); |
| 76 | |
| 77 | /* VFD write operation */ |
| 78 | static ssize_t vfd_write(struct file *file, const char *buf, |
| 79 | size_t n_bytes, loff_t *pos); |
| 80 | |
| 81 | /* LCD file_operations override function prototypes */ |
| 82 | static ssize_t lcd_write(struct file *file, const char *buf, |
| 83 | size_t n_bytes, loff_t *pos); |
| 84 | |
| 85 | /*** G L O B A L S ***/ |
| 86 | |
| 87 | struct imon_context { |
| 88 | struct device *dev; |
| 89 | struct ir_dev_props *props; |
| 90 | struct ir_input_dev *ir; |
| 91 | /* Newer devices have two interfaces */ |
| 92 | struct usb_device *usbdev_intf0; |
| 93 | struct usb_device *usbdev_intf1; |
| 94 | |
| 95 | bool display_supported; /* not all controllers do */ |
| 96 | bool display_isopen; /* display port has been opened */ |
| 97 | bool rf_isassociating; /* RF remote associating */ |
| 98 | bool dev_present_intf0; /* USB device presence, interface 0 */ |
| 99 | bool dev_present_intf1; /* USB device presence, interface 1 */ |
| 100 | |
| 101 | struct mutex lock; /* to lock this object */ |
| 102 | wait_queue_head_t remove_ok; /* For unexpected USB disconnects */ |
| 103 | |
| 104 | struct usb_endpoint_descriptor *rx_endpoint_intf0; |
| 105 | struct usb_endpoint_descriptor *rx_endpoint_intf1; |
| 106 | struct usb_endpoint_descriptor *tx_endpoint; |
| 107 | struct urb *rx_urb_intf0; |
| 108 | struct urb *rx_urb_intf1; |
| 109 | struct urb *tx_urb; |
| 110 | bool tx_control; |
| 111 | unsigned char usb_rx_buf[8]; |
| 112 | unsigned char usb_tx_buf[8]; |
| 113 | |
| 114 | struct tx_t { |
| 115 | unsigned char data_buf[35]; /* user data buffer */ |
| 116 | struct completion finished; /* wait for write to finish */ |
| 117 | bool busy; /* write in progress */ |
| 118 | int status; /* status of tx completion */ |
| 119 | } tx; |
| 120 | |
| 121 | u16 vendor; /* usb vendor ID */ |
| 122 | u16 product; /* usb product ID */ |
| 123 | |
| 124 | struct input_dev *idev; /* input device for remote */ |
| 125 | struct input_dev *touch; /* input device for touchscreen */ |
| 126 | |
| 127 | u32 kc; /* current input keycode */ |
| 128 | u32 last_keycode; /* last reported input keycode */ |
Jarod Wilson | 6718e8a | 2010-04-23 02:27:11 -0300 | [diff] [blame] | 129 | u64 ir_type; /* iMON or MCE (RC6) IR protocol? */ |
Jarod Wilson | 21677cf | 2010-04-16 18:29:02 -0300 | [diff] [blame] | 130 | u8 mce_toggle_bit; /* last mce toggle bit */ |
| 131 | bool release_code; /* some keys send a release code */ |
| 132 | |
| 133 | u8 display_type; /* store the display type */ |
| 134 | bool pad_mouse; /* toggle kbd(0)/mouse(1) mode */ |
| 135 | |
| 136 | char name_idev[128]; /* input device name */ |
| 137 | char phys_idev[64]; /* input device phys path */ |
| 138 | struct timer_list itimer; /* input device timer, need for rc6 */ |
| 139 | |
| 140 | char name_touch[128]; /* touch screen name */ |
| 141 | char phys_touch[64]; /* touch screen phys path */ |
| 142 | struct timer_list ttimer; /* touch screen timer */ |
| 143 | int touch_x; /* x coordinate on touchscreen */ |
| 144 | int touch_y; /* y coordinate on touchscreen */ |
| 145 | }; |
| 146 | |
| 147 | #define TOUCH_TIMEOUT (HZ/30) |
Jarod Wilson | 21677cf | 2010-04-16 18:29:02 -0300 | [diff] [blame] | 148 | |
| 149 | /* vfd character device file operations */ |
| 150 | static const struct file_operations vfd_fops = { |
| 151 | .owner = THIS_MODULE, |
| 152 | .open = &display_open, |
| 153 | .write = &vfd_write, |
| 154 | .release = &display_close |
| 155 | }; |
| 156 | |
| 157 | /* lcd character device file operations */ |
| 158 | static const struct file_operations lcd_fops = { |
| 159 | .owner = THIS_MODULE, |
| 160 | .open = &display_open, |
| 161 | .write = &lcd_write, |
| 162 | .release = &display_close |
| 163 | }; |
| 164 | |
| 165 | enum { |
| 166 | IMON_DISPLAY_TYPE_AUTO = 0, |
| 167 | IMON_DISPLAY_TYPE_VFD = 1, |
| 168 | IMON_DISPLAY_TYPE_LCD = 2, |
| 169 | IMON_DISPLAY_TYPE_VGA = 3, |
| 170 | IMON_DISPLAY_TYPE_NONE = 4, |
| 171 | }; |
| 172 | |
| 173 | enum { |
Jarod Wilson | 21677cf | 2010-04-16 18:29:02 -0300 | [diff] [blame] | 174 | IMON_KEY_IMON = 0, |
| 175 | IMON_KEY_MCE = 1, |
| 176 | IMON_KEY_PANEL = 2, |
| 177 | }; |
| 178 | |
| 179 | /* |
| 180 | * USB Device ID for iMON USB Control Boards |
| 181 | * |
| 182 | * The Windows drivers contain 6 different inf files, more or less one for |
| 183 | * each new device until the 0x0034-0x0046 devices, which all use the same |
| 184 | * driver. Some of the devices in the 34-46 range haven't been definitively |
| 185 | * identified yet. Early devices have either a TriGem Computer, Inc. or a |
| 186 | * Samsung vendor ID (0x0aa8 and 0x04e8 respectively), while all later |
| 187 | * devices use the SoundGraph vendor ID (0x15c2). This driver only supports |
| 188 | * the ffdc and later devices, which do onboard decoding. |
| 189 | */ |
| 190 | static struct usb_device_id imon_usb_id_table[] = { |
| 191 | /* |
| 192 | * Several devices with this same device ID, all use iMON_PAD.inf |
| 193 | * SoundGraph iMON PAD (IR & VFD) |
| 194 | * SoundGraph iMON PAD (IR & LCD) |
| 195 | * SoundGraph iMON Knob (IR only) |
| 196 | */ |
| 197 | { USB_DEVICE(0x15c2, 0xffdc) }, |
| 198 | |
| 199 | /* |
| 200 | * Newer devices, all driven by the latest iMON Windows driver, full |
| 201 | * list of device IDs extracted via 'strings Setup/data1.hdr |grep 15c2' |
| 202 | * Need user input to fill in details on unknown devices. |
| 203 | */ |
| 204 | /* SoundGraph iMON OEM Touch LCD (IR & 7" VGA LCD) */ |
| 205 | { USB_DEVICE(0x15c2, 0x0034) }, |
| 206 | /* SoundGraph iMON OEM Touch LCD (IR & 4.3" VGA LCD) */ |
| 207 | { USB_DEVICE(0x15c2, 0x0035) }, |
| 208 | /* SoundGraph iMON OEM VFD (IR & VFD) */ |
| 209 | { USB_DEVICE(0x15c2, 0x0036) }, |
| 210 | /* device specifics unknown */ |
| 211 | { USB_DEVICE(0x15c2, 0x0037) }, |
| 212 | /* SoundGraph iMON OEM LCD (IR & LCD) */ |
| 213 | { USB_DEVICE(0x15c2, 0x0038) }, |
| 214 | /* SoundGraph iMON UltraBay (IR & LCD) */ |
| 215 | { USB_DEVICE(0x15c2, 0x0039) }, |
| 216 | /* device specifics unknown */ |
| 217 | { USB_DEVICE(0x15c2, 0x003a) }, |
| 218 | /* device specifics unknown */ |
| 219 | { USB_DEVICE(0x15c2, 0x003b) }, |
| 220 | /* SoundGraph iMON OEM Inside (IR only) */ |
| 221 | { USB_DEVICE(0x15c2, 0x003c) }, |
| 222 | /* device specifics unknown */ |
| 223 | { USB_DEVICE(0x15c2, 0x003d) }, |
| 224 | /* device specifics unknown */ |
| 225 | { USB_DEVICE(0x15c2, 0x003e) }, |
| 226 | /* device specifics unknown */ |
| 227 | { USB_DEVICE(0x15c2, 0x003f) }, |
| 228 | /* device specifics unknown */ |
| 229 | { USB_DEVICE(0x15c2, 0x0040) }, |
| 230 | /* SoundGraph iMON MINI (IR only) */ |
| 231 | { USB_DEVICE(0x15c2, 0x0041) }, |
| 232 | /* Antec Veris Multimedia Station EZ External (IR only) */ |
| 233 | { USB_DEVICE(0x15c2, 0x0042) }, |
| 234 | /* Antec Veris Multimedia Station Basic Internal (IR only) */ |
| 235 | { USB_DEVICE(0x15c2, 0x0043) }, |
| 236 | /* Antec Veris Multimedia Station Elite (IR & VFD) */ |
| 237 | { USB_DEVICE(0x15c2, 0x0044) }, |
| 238 | /* Antec Veris Multimedia Station Premiere (IR & LCD) */ |
| 239 | { USB_DEVICE(0x15c2, 0x0045) }, |
| 240 | /* device specifics unknown */ |
| 241 | { USB_DEVICE(0x15c2, 0x0046) }, |
| 242 | {} |
| 243 | }; |
| 244 | |
| 245 | /* USB Device data */ |
| 246 | static struct usb_driver imon_driver = { |
| 247 | .name = MOD_NAME, |
| 248 | .probe = imon_probe, |
| 249 | .disconnect = imon_disconnect, |
| 250 | .suspend = imon_suspend, |
| 251 | .resume = imon_resume, |
| 252 | .id_table = imon_usb_id_table, |
| 253 | }; |
| 254 | |
| 255 | static struct usb_class_driver imon_vfd_class = { |
| 256 | .name = DEVICE_NAME, |
| 257 | .fops = &vfd_fops, |
| 258 | .minor_base = DISPLAY_MINOR_BASE, |
| 259 | }; |
| 260 | |
| 261 | static struct usb_class_driver imon_lcd_class = { |
| 262 | .name = DEVICE_NAME, |
| 263 | .fops = &lcd_fops, |
| 264 | .minor_base = DISPLAY_MINOR_BASE, |
| 265 | }; |
| 266 | |
| 267 | /* imon receiver front panel/knob key table */ |
| 268 | static const struct { |
| 269 | u64 hw_code; |
| 270 | u32 keycode; |
| 271 | } imon_panel_key_table[] = { |
Mauro Carvalho Chehab | 1f71bae | 2010-04-20 19:11:30 -0300 | [diff] [blame] | 272 | { 0x000000000f00ffeell, KEY_PROG1 }, /* Go */ |
| 273 | { 0x000000001f00ffeell, KEY_AUDIO }, |
| 274 | { 0x000000002000ffeell, KEY_VIDEO }, |
| 275 | { 0x000000002100ffeell, KEY_CAMERA }, |
| 276 | { 0x000000002700ffeell, KEY_DVD }, |
| 277 | { 0x000000002300ffeell, KEY_TV }, |
| 278 | { 0x000000000500ffeell, KEY_PREVIOUS }, |
| 279 | { 0x000000000700ffeell, KEY_REWIND }, |
| 280 | { 0x000000000400ffeell, KEY_STOP }, |
| 281 | { 0x000000003c00ffeell, KEY_PLAYPAUSE }, |
| 282 | { 0x000000000800ffeell, KEY_FASTFORWARD }, |
| 283 | { 0x000000000600ffeell, KEY_NEXT }, |
| 284 | { 0x000000010000ffeell, KEY_RIGHT }, |
| 285 | { 0x000001000000ffeell, KEY_LEFT }, |
| 286 | { 0x000000003d00ffeell, KEY_SELECT }, |
| 287 | { 0x000100000000ffeell, KEY_VOLUMEUP }, |
| 288 | { 0x010000000000ffeell, KEY_VOLUMEDOWN }, |
| 289 | { 0x000000000100ffeell, KEY_MUTE }, |
Jarod Wilson | 21677cf | 2010-04-16 18:29:02 -0300 | [diff] [blame] | 290 | /* iMON Knob values */ |
Mauro Carvalho Chehab | 1f71bae | 2010-04-20 19:11:30 -0300 | [diff] [blame] | 291 | { 0x000100ffffffffeell, KEY_VOLUMEUP }, |
| 292 | { 0x010000ffffffffeell, KEY_VOLUMEDOWN }, |
| 293 | { 0x000008ffffffffeell, KEY_MUTE }, |
Jarod Wilson | 21677cf | 2010-04-16 18:29:02 -0300 | [diff] [blame] | 294 | }; |
| 295 | |
| 296 | /* to prevent races between open() and disconnect(), probing, etc */ |
| 297 | static DEFINE_MUTEX(driver_lock); |
| 298 | |
| 299 | /* Module bookkeeping bits */ |
| 300 | MODULE_AUTHOR(MOD_AUTHOR); |
| 301 | MODULE_DESCRIPTION(MOD_DESC); |
| 302 | MODULE_VERSION(MOD_VERSION); |
| 303 | MODULE_LICENSE("GPL"); |
| 304 | MODULE_DEVICE_TABLE(usb, imon_usb_id_table); |
| 305 | |
| 306 | static bool debug; |
| 307 | module_param(debug, bool, S_IRUGO | S_IWUSR); |
| 308 | MODULE_PARM_DESC(debug, "Debug messages: 0=no, 1=yes(default: no)"); |
| 309 | |
| 310 | /* lcd, vfd, vga or none? should be auto-detected, but can be overridden... */ |
| 311 | static int display_type; |
| 312 | module_param(display_type, int, S_IRUGO); |
| 313 | MODULE_PARM_DESC(display_type, "Type of attached display. 0=autodetect, " |
| 314 | "1=vfd, 2=lcd, 3=vga, 4=none (default: autodetect)"); |
| 315 | |
Jarod Wilson | 6718e8a | 2010-04-23 02:27:11 -0300 | [diff] [blame] | 316 | static int pad_stabilize = 1; |
| 317 | module_param(pad_stabilize, int, S_IRUGO | S_IWUSR); |
| 318 | MODULE_PARM_DESC(pad_stabilize, "Apply stabilization algorithm to iMON PAD " |
| 319 | "presses in arrow key mode. 0=disable, 1=enable (default)."); |
Jarod Wilson | 21677cf | 2010-04-16 18:29:02 -0300 | [diff] [blame] | 320 | |
| 321 | /* |
| 322 | * In certain use cases, mouse mode isn't really helpful, and could actually |
| 323 | * cause confusion, so allow disabling it when the IR device is open. |
| 324 | */ |
| 325 | static bool nomouse; |
| 326 | module_param(nomouse, bool, S_IRUGO | S_IWUSR); |
| 327 | MODULE_PARM_DESC(nomouse, "Disable mouse input device mode when IR device is " |
| 328 | "open. 0=don't disable, 1=disable. (default: don't disable)"); |
| 329 | |
| 330 | /* threshold at which a pad push registers as an arrow key in kbd mode */ |
| 331 | static int pad_thresh; |
| 332 | module_param(pad_thresh, int, S_IRUGO | S_IWUSR); |
| 333 | MODULE_PARM_DESC(pad_thresh, "Threshold at which a pad push registers as an " |
| 334 | "arrow key in kbd mode (default: 28)"); |
| 335 | |
| 336 | |
| 337 | static void free_imon_context(struct imon_context *ictx) |
| 338 | { |
| 339 | struct device *dev = ictx->dev; |
| 340 | |
| 341 | usb_free_urb(ictx->tx_urb); |
| 342 | usb_free_urb(ictx->rx_urb_intf0); |
| 343 | usb_free_urb(ictx->rx_urb_intf1); |
| 344 | kfree(ictx); |
| 345 | |
| 346 | dev_dbg(dev, "%s: iMON context freed\n", __func__); |
| 347 | } |
| 348 | |
| 349 | /** |
| 350 | * Called when the Display device (e.g. /dev/lcd0) |
| 351 | * is opened by the application. |
| 352 | */ |
| 353 | static int display_open(struct inode *inode, struct file *file) |
| 354 | { |
| 355 | struct usb_interface *interface; |
| 356 | struct imon_context *ictx = NULL; |
| 357 | int subminor; |
| 358 | int retval = 0; |
| 359 | |
| 360 | /* prevent races with disconnect */ |
| 361 | mutex_lock(&driver_lock); |
| 362 | |
| 363 | subminor = iminor(inode); |
| 364 | interface = usb_find_interface(&imon_driver, subminor); |
| 365 | if (!interface) { |
| 366 | err("%s: could not find interface for minor %d", |
| 367 | __func__, subminor); |
| 368 | retval = -ENODEV; |
| 369 | goto exit; |
| 370 | } |
| 371 | ictx = usb_get_intfdata(interface); |
| 372 | |
| 373 | if (!ictx) { |
| 374 | err("%s: no context found for minor %d", __func__, subminor); |
| 375 | retval = -ENODEV; |
| 376 | goto exit; |
| 377 | } |
| 378 | |
| 379 | mutex_lock(&ictx->lock); |
| 380 | |
| 381 | if (!ictx->display_supported) { |
| 382 | err("%s: display not supported by device", __func__); |
| 383 | retval = -ENODEV; |
| 384 | } else if (ictx->display_isopen) { |
| 385 | err("%s: display port is already open", __func__); |
| 386 | retval = -EBUSY; |
| 387 | } else { |
| 388 | ictx->display_isopen = 1; |
| 389 | file->private_data = ictx; |
| 390 | dev_dbg(ictx->dev, "display port opened\n"); |
| 391 | } |
| 392 | |
| 393 | mutex_unlock(&ictx->lock); |
| 394 | |
| 395 | exit: |
| 396 | mutex_unlock(&driver_lock); |
| 397 | return retval; |
| 398 | } |
| 399 | |
| 400 | /** |
| 401 | * Called when the display device (e.g. /dev/lcd0) |
| 402 | * is closed by the application. |
| 403 | */ |
| 404 | static int display_close(struct inode *inode, struct file *file) |
| 405 | { |
| 406 | struct imon_context *ictx = NULL; |
| 407 | int retval = 0; |
| 408 | |
| 409 | ictx = (struct imon_context *)file->private_data; |
| 410 | |
| 411 | if (!ictx) { |
| 412 | err("%s: no context for device", __func__); |
| 413 | return -ENODEV; |
| 414 | } |
| 415 | |
| 416 | mutex_lock(&ictx->lock); |
| 417 | |
| 418 | if (!ictx->display_supported) { |
| 419 | err("%s: display not supported by device", __func__); |
| 420 | retval = -ENODEV; |
| 421 | } else if (!ictx->display_isopen) { |
| 422 | err("%s: display is not open", __func__); |
| 423 | retval = -EIO; |
| 424 | } else { |
| 425 | ictx->display_isopen = 0; |
| 426 | dev_dbg(ictx->dev, "display port closed\n"); |
| 427 | if (!ictx->dev_present_intf0) { |
| 428 | /* |
| 429 | * Device disconnected before close and IR port is not |
| 430 | * open. If IR port is open, context will be deleted by |
| 431 | * ir_close. |
| 432 | */ |
| 433 | mutex_unlock(&ictx->lock); |
| 434 | free_imon_context(ictx); |
| 435 | return retval; |
| 436 | } |
| 437 | } |
| 438 | |
| 439 | mutex_unlock(&ictx->lock); |
| 440 | return retval; |
| 441 | } |
| 442 | |
| 443 | /** |
| 444 | * Sends a packet to the device -- this function must be called |
| 445 | * with ictx->lock held. |
| 446 | */ |
| 447 | static int send_packet(struct imon_context *ictx) |
| 448 | { |
| 449 | unsigned int pipe; |
| 450 | unsigned long timeout; |
| 451 | int interval = 0; |
| 452 | int retval = 0; |
| 453 | struct usb_ctrlrequest *control_req = NULL; |
| 454 | |
| 455 | /* Check if we need to use control or interrupt urb */ |
| 456 | if (!ictx->tx_control) { |
| 457 | pipe = usb_sndintpipe(ictx->usbdev_intf0, |
| 458 | ictx->tx_endpoint->bEndpointAddress); |
| 459 | interval = ictx->tx_endpoint->bInterval; |
| 460 | |
| 461 | usb_fill_int_urb(ictx->tx_urb, ictx->usbdev_intf0, pipe, |
| 462 | ictx->usb_tx_buf, |
| 463 | sizeof(ictx->usb_tx_buf), |
| 464 | usb_tx_callback, ictx, interval); |
| 465 | |
| 466 | ictx->tx_urb->actual_length = 0; |
| 467 | } else { |
| 468 | /* fill request into kmalloc'ed space: */ |
| 469 | control_req = kmalloc(sizeof(struct usb_ctrlrequest), |
| 470 | GFP_KERNEL); |
| 471 | if (control_req == NULL) |
| 472 | return -ENOMEM; |
| 473 | |
| 474 | /* setup packet is '21 09 0200 0001 0008' */ |
| 475 | control_req->bRequestType = 0x21; |
| 476 | control_req->bRequest = 0x09; |
| 477 | control_req->wValue = cpu_to_le16(0x0200); |
| 478 | control_req->wIndex = cpu_to_le16(0x0001); |
| 479 | control_req->wLength = cpu_to_le16(0x0008); |
| 480 | |
| 481 | /* control pipe is endpoint 0x00 */ |
| 482 | pipe = usb_sndctrlpipe(ictx->usbdev_intf0, 0); |
| 483 | |
| 484 | /* build the control urb */ |
| 485 | usb_fill_control_urb(ictx->tx_urb, ictx->usbdev_intf0, |
| 486 | pipe, (unsigned char *)control_req, |
| 487 | ictx->usb_tx_buf, |
| 488 | sizeof(ictx->usb_tx_buf), |
| 489 | usb_tx_callback, ictx); |
| 490 | ictx->tx_urb->actual_length = 0; |
| 491 | } |
| 492 | |
| 493 | init_completion(&ictx->tx.finished); |
| 494 | ictx->tx.busy = 1; |
| 495 | smp_rmb(); /* ensure later readers know we're busy */ |
| 496 | |
| 497 | retval = usb_submit_urb(ictx->tx_urb, GFP_KERNEL); |
| 498 | if (retval) { |
| 499 | ictx->tx.busy = 0; |
| 500 | smp_rmb(); /* ensure later readers know we're not busy */ |
| 501 | err("%s: error submitting urb(%d)", __func__, retval); |
| 502 | } else { |
| 503 | /* Wait for transmission to complete (or abort) */ |
| 504 | mutex_unlock(&ictx->lock); |
| 505 | retval = wait_for_completion_interruptible( |
| 506 | &ictx->tx.finished); |
| 507 | if (retval) |
| 508 | err("%s: task interrupted", __func__); |
| 509 | mutex_lock(&ictx->lock); |
| 510 | |
| 511 | retval = ictx->tx.status; |
| 512 | if (retval) |
| 513 | err("%s: packet tx failed (%d)", __func__, retval); |
| 514 | } |
| 515 | |
| 516 | kfree(control_req); |
| 517 | |
| 518 | /* |
| 519 | * Induce a mandatory 5ms delay before returning, as otherwise, |
| 520 | * send_packet can get called so rapidly as to overwhelm the device, |
| 521 | * particularly on faster systems and/or those with quirky usb. |
| 522 | */ |
| 523 | timeout = msecs_to_jiffies(5); |
| 524 | set_current_state(TASK_UNINTERRUPTIBLE); |
| 525 | schedule_timeout(timeout); |
| 526 | |
| 527 | return retval; |
| 528 | } |
| 529 | |
| 530 | /** |
| 531 | * Sends an associate packet to the iMON 2.4G. |
| 532 | * |
| 533 | * This might not be such a good idea, since it has an id collision with |
| 534 | * some versions of the "IR & VFD" combo. The only way to determine if it |
| 535 | * is an RF version is to look at the product description string. (Which |
| 536 | * we currently do not fetch). |
| 537 | */ |
| 538 | static int send_associate_24g(struct imon_context *ictx) |
| 539 | { |
| 540 | int retval; |
| 541 | const unsigned char packet[8] = { 0x01, 0x00, 0x00, 0x00, |
| 542 | 0x00, 0x00, 0x00, 0x20 }; |
| 543 | |
| 544 | if (!ictx) { |
| 545 | err("%s: no context for device", __func__); |
| 546 | return -ENODEV; |
| 547 | } |
| 548 | |
| 549 | if (!ictx->dev_present_intf0) { |
| 550 | err("%s: no iMON device present", __func__); |
| 551 | return -ENODEV; |
| 552 | } |
| 553 | |
| 554 | memcpy(ictx->usb_tx_buf, packet, sizeof(packet)); |
| 555 | retval = send_packet(ictx); |
| 556 | |
| 557 | return retval; |
| 558 | } |
| 559 | |
| 560 | /** |
| 561 | * Sends packets to setup and show clock on iMON display |
| 562 | * |
| 563 | * Arguments: year - last 2 digits of year, month - 1..12, |
| 564 | * day - 1..31, dow - day of the week (0-Sun...6-Sat), |
| 565 | * hour - 0..23, minute - 0..59, second - 0..59 |
| 566 | */ |
| 567 | static int send_set_imon_clock(struct imon_context *ictx, |
| 568 | unsigned int year, unsigned int month, |
| 569 | unsigned int day, unsigned int dow, |
| 570 | unsigned int hour, unsigned int minute, |
| 571 | unsigned int second) |
| 572 | { |
| 573 | unsigned char clock_enable_pkt[IMON_CLOCK_ENABLE_PACKETS][8]; |
| 574 | int retval = 0; |
| 575 | int i; |
| 576 | |
| 577 | if (!ictx) { |
| 578 | err("%s: no context for device", __func__); |
| 579 | return -ENODEV; |
| 580 | } |
| 581 | |
| 582 | switch (ictx->display_type) { |
| 583 | case IMON_DISPLAY_TYPE_LCD: |
| 584 | clock_enable_pkt[0][0] = 0x80; |
| 585 | clock_enable_pkt[0][1] = year; |
| 586 | clock_enable_pkt[0][2] = month-1; |
| 587 | clock_enable_pkt[0][3] = day; |
| 588 | clock_enable_pkt[0][4] = hour; |
| 589 | clock_enable_pkt[0][5] = minute; |
| 590 | clock_enable_pkt[0][6] = second; |
| 591 | |
| 592 | clock_enable_pkt[1][0] = 0x80; |
| 593 | clock_enable_pkt[1][1] = 0; |
| 594 | clock_enable_pkt[1][2] = 0; |
| 595 | clock_enable_pkt[1][3] = 0; |
| 596 | clock_enable_pkt[1][4] = 0; |
| 597 | clock_enable_pkt[1][5] = 0; |
| 598 | clock_enable_pkt[1][6] = 0; |
| 599 | |
| 600 | if (ictx->product == 0xffdc) { |
| 601 | clock_enable_pkt[0][7] = 0x50; |
| 602 | clock_enable_pkt[1][7] = 0x51; |
| 603 | } else { |
| 604 | clock_enable_pkt[0][7] = 0x88; |
| 605 | clock_enable_pkt[1][7] = 0x8a; |
| 606 | } |
| 607 | |
| 608 | break; |
| 609 | |
| 610 | case IMON_DISPLAY_TYPE_VFD: |
| 611 | clock_enable_pkt[0][0] = year; |
| 612 | clock_enable_pkt[0][1] = month-1; |
| 613 | clock_enable_pkt[0][2] = day; |
| 614 | clock_enable_pkt[0][3] = dow; |
| 615 | clock_enable_pkt[0][4] = hour; |
| 616 | clock_enable_pkt[0][5] = minute; |
| 617 | clock_enable_pkt[0][6] = second; |
| 618 | clock_enable_pkt[0][7] = 0x40; |
| 619 | |
| 620 | clock_enable_pkt[1][0] = 0; |
| 621 | clock_enable_pkt[1][1] = 0; |
| 622 | clock_enable_pkt[1][2] = 1; |
| 623 | clock_enable_pkt[1][3] = 0; |
| 624 | clock_enable_pkt[1][4] = 0; |
| 625 | clock_enable_pkt[1][5] = 0; |
| 626 | clock_enable_pkt[1][6] = 0; |
| 627 | clock_enable_pkt[1][7] = 0x42; |
| 628 | |
| 629 | break; |
| 630 | |
| 631 | default: |
| 632 | return -ENODEV; |
| 633 | } |
| 634 | |
| 635 | for (i = 0; i < IMON_CLOCK_ENABLE_PACKETS; i++) { |
| 636 | memcpy(ictx->usb_tx_buf, clock_enable_pkt[i], 8); |
| 637 | retval = send_packet(ictx); |
| 638 | if (retval) { |
| 639 | err("%s: send_packet failed for packet %d", |
| 640 | __func__, i); |
| 641 | break; |
| 642 | } |
| 643 | } |
| 644 | |
| 645 | return retval; |
| 646 | } |
| 647 | |
| 648 | /** |
| 649 | * These are the sysfs functions to handle the association on the iMON 2.4G LT. |
| 650 | */ |
| 651 | static ssize_t show_associate_remote(struct device *d, |
| 652 | struct device_attribute *attr, |
| 653 | char *buf) |
| 654 | { |
| 655 | struct imon_context *ictx = dev_get_drvdata(d); |
| 656 | |
| 657 | if (!ictx) |
| 658 | return -ENODEV; |
| 659 | |
| 660 | mutex_lock(&ictx->lock); |
| 661 | if (ictx->rf_isassociating) |
| 662 | strcpy(buf, "associating\n"); |
| 663 | else |
| 664 | strcpy(buf, "closed\n"); |
| 665 | |
| 666 | dev_info(d, "Visit http://www.lirc.org/html/imon-24g.html for " |
| 667 | "instructions on how to associate your iMON 2.4G DT/LT " |
| 668 | "remote\n"); |
| 669 | mutex_unlock(&ictx->lock); |
| 670 | return strlen(buf); |
| 671 | } |
| 672 | |
| 673 | static ssize_t store_associate_remote(struct device *d, |
| 674 | struct device_attribute *attr, |
| 675 | const char *buf, size_t count) |
| 676 | { |
| 677 | struct imon_context *ictx; |
| 678 | |
| 679 | ictx = dev_get_drvdata(d); |
| 680 | |
| 681 | if (!ictx) |
| 682 | return -ENODEV; |
| 683 | |
| 684 | mutex_lock(&ictx->lock); |
| 685 | ictx->rf_isassociating = 1; |
| 686 | send_associate_24g(ictx); |
| 687 | mutex_unlock(&ictx->lock); |
| 688 | |
| 689 | return count; |
| 690 | } |
| 691 | |
| 692 | /** |
| 693 | * sysfs functions to control internal imon clock |
| 694 | */ |
| 695 | static ssize_t show_imon_clock(struct device *d, |
| 696 | struct device_attribute *attr, char *buf) |
| 697 | { |
| 698 | struct imon_context *ictx = dev_get_drvdata(d); |
| 699 | size_t len; |
| 700 | |
| 701 | if (!ictx) |
| 702 | return -ENODEV; |
| 703 | |
| 704 | mutex_lock(&ictx->lock); |
| 705 | |
| 706 | if (!ictx->display_supported) { |
| 707 | len = snprintf(buf, PAGE_SIZE, "Not supported."); |
| 708 | } else { |
| 709 | len = snprintf(buf, PAGE_SIZE, |
| 710 | "To set the clock on your iMON display:\n" |
| 711 | "# date \"+%%y %%m %%d %%w %%H %%M %%S\" > imon_clock\n" |
| 712 | "%s", ictx->display_isopen ? |
| 713 | "\nNOTE: imon device must be closed\n" : ""); |
| 714 | } |
| 715 | |
| 716 | mutex_unlock(&ictx->lock); |
| 717 | |
| 718 | return len; |
| 719 | } |
| 720 | |
| 721 | static ssize_t store_imon_clock(struct device *d, |
| 722 | struct device_attribute *attr, |
| 723 | const char *buf, size_t count) |
| 724 | { |
| 725 | struct imon_context *ictx = dev_get_drvdata(d); |
| 726 | ssize_t retval; |
| 727 | unsigned int year, month, day, dow, hour, minute, second; |
| 728 | |
| 729 | if (!ictx) |
| 730 | return -ENODEV; |
| 731 | |
| 732 | mutex_lock(&ictx->lock); |
| 733 | |
| 734 | if (!ictx->display_supported) { |
| 735 | retval = -ENODEV; |
| 736 | goto exit; |
| 737 | } else if (ictx->display_isopen) { |
| 738 | retval = -EBUSY; |
| 739 | goto exit; |
| 740 | } |
| 741 | |
| 742 | if (sscanf(buf, "%u %u %u %u %u %u %u", &year, &month, &day, &dow, |
| 743 | &hour, &minute, &second) != 7) { |
| 744 | retval = -EINVAL; |
| 745 | goto exit; |
| 746 | } |
| 747 | |
| 748 | if ((month < 1 || month > 12) || |
| 749 | (day < 1 || day > 31) || (dow > 6) || |
| 750 | (hour > 23) || (minute > 59) || (second > 59)) { |
| 751 | retval = -EINVAL; |
| 752 | goto exit; |
| 753 | } |
| 754 | |
| 755 | retval = send_set_imon_clock(ictx, year, month, day, dow, |
| 756 | hour, minute, second); |
| 757 | if (retval) |
| 758 | goto exit; |
| 759 | |
| 760 | retval = count; |
| 761 | exit: |
| 762 | mutex_unlock(&ictx->lock); |
| 763 | |
| 764 | return retval; |
| 765 | } |
| 766 | |
| 767 | |
| 768 | static DEVICE_ATTR(imon_clock, S_IWUSR | S_IRUGO, show_imon_clock, |
| 769 | store_imon_clock); |
| 770 | |
| 771 | static DEVICE_ATTR(associate_remote, S_IWUSR | S_IRUGO, show_associate_remote, |
| 772 | store_associate_remote); |
| 773 | |
| 774 | static struct attribute *imon_display_sysfs_entries[] = { |
| 775 | &dev_attr_imon_clock.attr, |
| 776 | NULL |
| 777 | }; |
| 778 | |
| 779 | static struct attribute_group imon_display_attribute_group = { |
| 780 | .attrs = imon_display_sysfs_entries |
| 781 | }; |
| 782 | |
| 783 | static struct attribute *imon_rf_sysfs_entries[] = { |
| 784 | &dev_attr_associate_remote.attr, |
| 785 | NULL |
| 786 | }; |
| 787 | |
| 788 | static struct attribute_group imon_rf_attribute_group = { |
| 789 | .attrs = imon_rf_sysfs_entries |
| 790 | }; |
| 791 | |
| 792 | /** |
| 793 | * Writes data to the VFD. The iMON VFD is 2x16 characters |
| 794 | * and requires data in 5 consecutive USB interrupt packets, |
| 795 | * each packet but the last carrying 7 bytes. |
| 796 | * |
| 797 | * I don't know if the VFD board supports features such as |
| 798 | * scrolling, clearing rows, blanking, etc. so at |
| 799 | * the caller must provide a full screen of data. If fewer |
| 800 | * than 32 bytes are provided spaces will be appended to |
| 801 | * generate a full screen. |
| 802 | */ |
| 803 | static ssize_t vfd_write(struct file *file, const char *buf, |
| 804 | size_t n_bytes, loff_t *pos) |
| 805 | { |
| 806 | int i; |
| 807 | int offset; |
| 808 | int seq; |
| 809 | int retval = 0; |
| 810 | struct imon_context *ictx; |
| 811 | const unsigned char vfd_packet6[] = { |
| 812 | 0x01, 0x00, 0x00, 0x00, 0x00, 0xFF, 0xFF }; |
| 813 | |
| 814 | ictx = (struct imon_context *)file->private_data; |
| 815 | if (!ictx) { |
| 816 | err("%s: no context for device", __func__); |
| 817 | return -ENODEV; |
| 818 | } |
| 819 | |
| 820 | mutex_lock(&ictx->lock); |
| 821 | |
| 822 | if (!ictx->dev_present_intf0) { |
| 823 | err("%s: no iMON device present", __func__); |
| 824 | retval = -ENODEV; |
| 825 | goto exit; |
| 826 | } |
| 827 | |
| 828 | if (n_bytes <= 0 || n_bytes > 32) { |
| 829 | err("%s: invalid payload size", __func__); |
| 830 | retval = -EINVAL; |
| 831 | goto exit; |
| 832 | } |
| 833 | |
| 834 | if (copy_from_user(ictx->tx.data_buf, buf, n_bytes)) { |
| 835 | retval = -EFAULT; |
| 836 | goto exit; |
| 837 | } |
| 838 | |
| 839 | /* Pad with spaces */ |
| 840 | for (i = n_bytes; i < 32; ++i) |
| 841 | ictx->tx.data_buf[i] = ' '; |
| 842 | |
| 843 | for (i = 32; i < 35; ++i) |
| 844 | ictx->tx.data_buf[i] = 0xFF; |
| 845 | |
| 846 | offset = 0; |
| 847 | seq = 0; |
| 848 | |
| 849 | do { |
| 850 | memcpy(ictx->usb_tx_buf, ictx->tx.data_buf + offset, 7); |
| 851 | ictx->usb_tx_buf[7] = (unsigned char) seq; |
| 852 | |
| 853 | retval = send_packet(ictx); |
| 854 | if (retval) { |
| 855 | err("%s: send packet failed for packet #%d", |
| 856 | __func__, seq/2); |
| 857 | goto exit; |
| 858 | } else { |
| 859 | seq += 2; |
| 860 | offset += 7; |
| 861 | } |
| 862 | |
| 863 | } while (offset < 35); |
| 864 | |
| 865 | /* Send packet #6 */ |
| 866 | memcpy(ictx->usb_tx_buf, &vfd_packet6, sizeof(vfd_packet6)); |
| 867 | ictx->usb_tx_buf[7] = (unsigned char) seq; |
| 868 | retval = send_packet(ictx); |
| 869 | if (retval) |
| 870 | err("%s: send packet failed for packet #%d", |
| 871 | __func__, seq / 2); |
| 872 | |
| 873 | exit: |
| 874 | mutex_unlock(&ictx->lock); |
| 875 | |
| 876 | return (!retval) ? n_bytes : retval; |
| 877 | } |
| 878 | |
| 879 | /** |
| 880 | * Writes data to the LCD. The iMON OEM LCD screen expects 8-byte |
| 881 | * packets. We accept data as 16 hexadecimal digits, followed by a |
| 882 | * newline (to make it easy to drive the device from a command-line |
| 883 | * -- even though the actual binary data is a bit complicated). |
| 884 | * |
| 885 | * The device itself is not a "traditional" text-mode display. It's |
| 886 | * actually a 16x96 pixel bitmap display. That means if you want to |
| 887 | * display text, you've got to have your own "font" and translate the |
| 888 | * text into bitmaps for display. This is really flexible (you can |
| 889 | * display whatever diacritics you need, and so on), but it's also |
| 890 | * a lot more complicated than most LCDs... |
| 891 | */ |
| 892 | static ssize_t lcd_write(struct file *file, const char *buf, |
| 893 | size_t n_bytes, loff_t *pos) |
| 894 | { |
| 895 | int retval = 0; |
| 896 | struct imon_context *ictx; |
| 897 | |
| 898 | ictx = (struct imon_context *)file->private_data; |
| 899 | if (!ictx) { |
| 900 | err("%s: no context for device", __func__); |
| 901 | return -ENODEV; |
| 902 | } |
| 903 | |
| 904 | mutex_lock(&ictx->lock); |
| 905 | |
| 906 | if (!ictx->display_supported) { |
| 907 | err("%s: no iMON display present", __func__); |
| 908 | retval = -ENODEV; |
| 909 | goto exit; |
| 910 | } |
| 911 | |
| 912 | if (n_bytes != 8) { |
| 913 | err("%s: invalid payload size: %d (expecting 8)", |
| 914 | __func__, (int) n_bytes); |
| 915 | retval = -EINVAL; |
| 916 | goto exit; |
| 917 | } |
| 918 | |
| 919 | if (copy_from_user(ictx->usb_tx_buf, buf, 8)) { |
| 920 | retval = -EFAULT; |
| 921 | goto exit; |
| 922 | } |
| 923 | |
| 924 | retval = send_packet(ictx); |
| 925 | if (retval) { |
| 926 | err("%s: send packet failed!", __func__); |
| 927 | goto exit; |
| 928 | } else { |
| 929 | dev_dbg(ictx->dev, "%s: write %d bytes to LCD\n", |
| 930 | __func__, (int) n_bytes); |
| 931 | } |
| 932 | exit: |
| 933 | mutex_unlock(&ictx->lock); |
| 934 | return (!retval) ? n_bytes : retval; |
| 935 | } |
| 936 | |
| 937 | /** |
| 938 | * Callback function for USB core API: transmit data |
| 939 | */ |
| 940 | static void usb_tx_callback(struct urb *urb) |
| 941 | { |
| 942 | struct imon_context *ictx; |
| 943 | |
| 944 | if (!urb) |
| 945 | return; |
| 946 | ictx = (struct imon_context *)urb->context; |
| 947 | if (!ictx) |
| 948 | return; |
| 949 | |
| 950 | ictx->tx.status = urb->status; |
| 951 | |
| 952 | /* notify waiters that write has finished */ |
| 953 | ictx->tx.busy = 0; |
| 954 | smp_rmb(); /* ensure later readers know we're not busy */ |
| 955 | complete(&ictx->tx.finished); |
| 956 | } |
| 957 | |
| 958 | /** |
| 959 | * mce/rc6 keypresses have no distinct release code, use timer |
| 960 | */ |
| 961 | static void imon_mce_timeout(unsigned long data) |
| 962 | { |
| 963 | struct imon_context *ictx = (struct imon_context *)data; |
| 964 | |
| 965 | input_report_key(ictx->idev, ictx->last_keycode, 0); |
| 966 | input_sync(ictx->idev); |
| 967 | } |
| 968 | |
| 969 | /** |
| 970 | * report touchscreen input |
| 971 | */ |
| 972 | static void imon_touch_display_timeout(unsigned long data) |
| 973 | { |
| 974 | struct imon_context *ictx = (struct imon_context *)data; |
| 975 | |
Dan Carpenter | f03900d | 2010-05-04 08:37:33 -0300 | [diff] [blame] | 976 | if (ictx->display_type != IMON_DISPLAY_TYPE_VGA) |
Jarod Wilson | 21677cf | 2010-04-16 18:29:02 -0300 | [diff] [blame] | 977 | return; |
| 978 | |
| 979 | input_report_abs(ictx->touch, ABS_X, ictx->touch_x); |
| 980 | input_report_abs(ictx->touch, ABS_Y, ictx->touch_y); |
| 981 | input_report_key(ictx->touch, BTN_TOUCH, 0x00); |
| 982 | input_sync(ictx->touch); |
| 983 | } |
| 984 | |
| 985 | /** |
| 986 | * iMON IR receivers support two different signal sets -- those used by |
| 987 | * the iMON remotes, and those used by the Windows MCE remotes (which is |
| 988 | * really just RC-6), but only one or the other at a time, as the signals |
| 989 | * are decoded onboard the receiver. |
| 990 | */ |
Jarod Wilson | 6718e8a | 2010-04-23 02:27:11 -0300 | [diff] [blame] | 991 | int imon_ir_change_protocol(void *priv, u64 ir_type) |
Jarod Wilson | 21677cf | 2010-04-16 18:29:02 -0300 | [diff] [blame] | 992 | { |
| 993 | int retval; |
Jarod Wilson | 6718e8a | 2010-04-23 02:27:11 -0300 | [diff] [blame] | 994 | struct imon_context *ictx = priv; |
Jarod Wilson | 21677cf | 2010-04-16 18:29:02 -0300 | [diff] [blame] | 995 | struct device *dev = ictx->dev; |
Jarod Wilson | 6718e8a | 2010-04-23 02:27:11 -0300 | [diff] [blame] | 996 | bool pad_mouse; |
Jarod Wilson | 21677cf | 2010-04-16 18:29:02 -0300 | [diff] [blame] | 997 | unsigned char ir_proto_packet[] = { |
| 998 | 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x86 }; |
| 999 | |
Jarod Wilson | 666a9ed | 2010-04-28 14:37:29 -0300 | [diff] [blame] | 1000 | if (ir_type && !(ir_type & ictx->props->allowed_protos)) |
Jarod Wilson | 21677cf | 2010-04-16 18:29:02 -0300 | [diff] [blame] | 1001 | dev_warn(dev, "Looks like you're trying to use an IR protocol " |
| 1002 | "this device does not support\n"); |
| 1003 | |
Jarod Wilson | 6718e8a | 2010-04-23 02:27:11 -0300 | [diff] [blame] | 1004 | switch (ir_type) { |
| 1005 | case IR_TYPE_RC6: |
Jarod Wilson | 21677cf | 2010-04-16 18:29:02 -0300 | [diff] [blame] | 1006 | dev_dbg(dev, "Configuring IR receiver for MCE protocol\n"); |
| 1007 | ir_proto_packet[0] = 0x01; |
Jarod Wilson | 6718e8a | 2010-04-23 02:27:11 -0300 | [diff] [blame] | 1008 | pad_mouse = false; |
Jarod Wilson | 21677cf | 2010-04-16 18:29:02 -0300 | [diff] [blame] | 1009 | init_timer(&ictx->itimer); |
| 1010 | ictx->itimer.data = (unsigned long)ictx; |
| 1011 | ictx->itimer.function = imon_mce_timeout; |
| 1012 | break; |
Jarod Wilson | 6718e8a | 2010-04-23 02:27:11 -0300 | [diff] [blame] | 1013 | case IR_TYPE_UNKNOWN: |
| 1014 | case IR_TYPE_OTHER: |
Jarod Wilson | 666a9ed | 2010-04-28 14:37:29 -0300 | [diff] [blame] | 1015 | dev_dbg(dev, "Configuring IR receiver for iMON protocol\n"); |
| 1016 | if (pad_stabilize) |
Jarod Wilson | 6718e8a | 2010-04-23 02:27:11 -0300 | [diff] [blame] | 1017 | pad_mouse = true; |
Jarod Wilson | 666a9ed | 2010-04-28 14:37:29 -0300 | [diff] [blame] | 1018 | else { |
| 1019 | dev_dbg(dev, "PAD stabilize functionality disabled\n"); |
Jarod Wilson | 6718e8a | 2010-04-23 02:27:11 -0300 | [diff] [blame] | 1020 | pad_mouse = false; |
| 1021 | } |
Jarod Wilson | 21677cf | 2010-04-16 18:29:02 -0300 | [diff] [blame] | 1022 | /* ir_proto_packet[0] = 0x00; // already the default */ |
Jarod Wilson | 6718e8a | 2010-04-23 02:27:11 -0300 | [diff] [blame] | 1023 | ir_type = IR_TYPE_OTHER; |
Jarod Wilson | 21677cf | 2010-04-16 18:29:02 -0300 | [diff] [blame] | 1024 | break; |
| 1025 | default: |
Jarod Wilson | 6718e8a | 2010-04-23 02:27:11 -0300 | [diff] [blame] | 1026 | dev_warn(dev, "Unsupported IR protocol specified, overriding " |
Jarod Wilson | 666a9ed | 2010-04-28 14:37:29 -0300 | [diff] [blame] | 1027 | "to iMON IR protocol\n"); |
| 1028 | if (pad_stabilize) |
Jarod Wilson | 6718e8a | 2010-04-23 02:27:11 -0300 | [diff] [blame] | 1029 | pad_mouse = true; |
Jarod Wilson | 666a9ed | 2010-04-28 14:37:29 -0300 | [diff] [blame] | 1030 | else { |
| 1031 | dev_dbg(dev, "PAD stabilize functionality disabled\n"); |
Jarod Wilson | 6718e8a | 2010-04-23 02:27:11 -0300 | [diff] [blame] | 1032 | pad_mouse = false; |
| 1033 | } |
| 1034 | /* ir_proto_packet[0] = 0x00; // already the default */ |
| 1035 | ir_type = IR_TYPE_OTHER; |
Jarod Wilson | 21677cf | 2010-04-16 18:29:02 -0300 | [diff] [blame] | 1036 | break; |
| 1037 | } |
| 1038 | |
| 1039 | memcpy(ictx->usb_tx_buf, &ir_proto_packet, sizeof(ir_proto_packet)); |
| 1040 | |
| 1041 | retval = send_packet(ictx); |
Jarod Wilson | 6718e8a | 2010-04-23 02:27:11 -0300 | [diff] [blame] | 1042 | if (retval) |
| 1043 | goto out; |
| 1044 | |
| 1045 | ictx->ir_type = ir_type; |
| 1046 | ictx->pad_mouse = pad_mouse; |
| 1047 | |
| 1048 | out: |
| 1049 | return retval; |
Jarod Wilson | 21677cf | 2010-04-16 18:29:02 -0300 | [diff] [blame] | 1050 | } |
| 1051 | |
| 1052 | static inline int tv2int(const struct timeval *a, const struct timeval *b) |
| 1053 | { |
| 1054 | int usecs = 0; |
| 1055 | int sec = 0; |
| 1056 | |
| 1057 | if (b->tv_usec > a->tv_usec) { |
| 1058 | usecs = 1000000; |
| 1059 | sec--; |
| 1060 | } |
| 1061 | |
| 1062 | usecs += a->tv_usec - b->tv_usec; |
| 1063 | |
| 1064 | sec += a->tv_sec - b->tv_sec; |
| 1065 | sec *= 1000; |
| 1066 | usecs /= 1000; |
| 1067 | sec += usecs; |
| 1068 | |
| 1069 | if (sec < 0) |
| 1070 | sec = 1000; |
| 1071 | |
| 1072 | return sec; |
| 1073 | } |
| 1074 | |
| 1075 | /** |
| 1076 | * The directional pad behaves a bit differently, depending on whether this is |
| 1077 | * one of the older ffdc devices or a newer device. Newer devices appear to |
| 1078 | * have a higher resolution matrix for more precise mouse movement, but it |
| 1079 | * makes things overly sensitive in keyboard mode, so we do some interesting |
| 1080 | * contortions to make it less touchy. Older devices run through the same |
| 1081 | * routine with shorter timeout and a smaller threshold. |
| 1082 | */ |
| 1083 | static int stabilize(int a, int b, u16 timeout, u16 threshold) |
| 1084 | { |
| 1085 | struct timeval ct; |
| 1086 | static struct timeval prev_time = {0, 0}; |
| 1087 | static struct timeval hit_time = {0, 0}; |
| 1088 | static int x, y, prev_result, hits; |
| 1089 | int result = 0; |
| 1090 | int msec, msec_hit; |
| 1091 | |
| 1092 | do_gettimeofday(&ct); |
| 1093 | msec = tv2int(&ct, &prev_time); |
| 1094 | msec_hit = tv2int(&ct, &hit_time); |
| 1095 | |
| 1096 | if (msec > 100) { |
| 1097 | x = 0; |
| 1098 | y = 0; |
| 1099 | hits = 0; |
| 1100 | } |
| 1101 | |
| 1102 | x += a; |
| 1103 | y += b; |
| 1104 | |
| 1105 | prev_time = ct; |
| 1106 | |
| 1107 | if (abs(x) > threshold || abs(y) > threshold) { |
| 1108 | if (abs(y) > abs(x)) |
| 1109 | result = (y > 0) ? 0x7F : 0x80; |
| 1110 | else |
| 1111 | result = (x > 0) ? 0x7F00 : 0x8000; |
| 1112 | |
| 1113 | x = 0; |
| 1114 | y = 0; |
| 1115 | |
| 1116 | if (result == prev_result) { |
| 1117 | hits++; |
| 1118 | |
| 1119 | if (hits > 3) { |
| 1120 | switch (result) { |
| 1121 | case 0x7F: |
| 1122 | y = 17 * threshold / 30; |
| 1123 | break; |
| 1124 | case 0x80: |
| 1125 | y -= 17 * threshold / 30; |
| 1126 | break; |
| 1127 | case 0x7F00: |
| 1128 | x = 17 * threshold / 30; |
| 1129 | break; |
| 1130 | case 0x8000: |
| 1131 | x -= 17 * threshold / 30; |
| 1132 | break; |
| 1133 | } |
| 1134 | } |
| 1135 | |
| 1136 | if (hits == 2 && msec_hit < timeout) { |
| 1137 | result = 0; |
| 1138 | hits = 1; |
| 1139 | } |
| 1140 | } else { |
| 1141 | prev_result = result; |
| 1142 | hits = 1; |
| 1143 | hit_time = ct; |
| 1144 | } |
| 1145 | } |
| 1146 | |
| 1147 | return result; |
| 1148 | } |
| 1149 | |
| 1150 | static u32 imon_remote_key_lookup(struct imon_context *ictx, u32 hw_code) |
| 1151 | { |
| 1152 | u32 scancode = be32_to_cpu(hw_code); |
| 1153 | u32 keycode; |
| 1154 | u32 release; |
| 1155 | bool is_release_code = false; |
| 1156 | |
| 1157 | /* Look for the initial press of a button */ |
| 1158 | keycode = ir_g_keycode_from_table(ictx->idev, scancode); |
| 1159 | |
| 1160 | /* Look for the release of a button */ |
| 1161 | if (keycode == KEY_RESERVED) { |
| 1162 | release = scancode & ~0x4000; |
| 1163 | keycode = ir_g_keycode_from_table(ictx->idev, release); |
| 1164 | if (keycode != KEY_RESERVED) |
| 1165 | is_release_code = true; |
| 1166 | } |
| 1167 | |
| 1168 | ictx->release_code = is_release_code; |
| 1169 | |
| 1170 | return keycode; |
| 1171 | } |
| 1172 | |
| 1173 | static u32 imon_mce_key_lookup(struct imon_context *ictx, u32 hw_code) |
| 1174 | { |
| 1175 | u32 scancode = be32_to_cpu(hw_code); |
| 1176 | u32 keycode; |
| 1177 | |
| 1178 | #define MCE_KEY_MASK 0x7000 |
| 1179 | #define MCE_TOGGLE_BIT 0x8000 |
| 1180 | |
| 1181 | /* |
| 1182 | * On some receivers, mce keys decode to 0x8000f04xx and 0x8000f84xx |
| 1183 | * (the toggle bit flipping between alternating key presses), while |
| 1184 | * on other receivers, we see 0x8000f74xx and 0x8000ff4xx. To keep |
| 1185 | * the table trim, we always or in the bits to look up 0x8000ff4xx, |
| 1186 | * but we can't or them into all codes, as some keys are decoded in |
| 1187 | * a different way w/o the same use of the toggle bit... |
| 1188 | */ |
| 1189 | if ((scancode >> 24) & 0x80) |
| 1190 | scancode = scancode | MCE_KEY_MASK | MCE_TOGGLE_BIT; |
| 1191 | |
| 1192 | keycode = ir_g_keycode_from_table(ictx->idev, scancode); |
| 1193 | |
| 1194 | return keycode; |
| 1195 | } |
| 1196 | |
| 1197 | static u32 imon_panel_key_lookup(u64 hw_code) |
| 1198 | { |
| 1199 | int i; |
| 1200 | u64 code = be64_to_cpu(hw_code); |
Jarod Wilson | 083e472 | 2010-05-04 16:17:05 -0300 | [diff] [blame^] | 1201 | u32 keycode = KEY_RESERVED; |
Jarod Wilson | 21677cf | 2010-04-16 18:29:02 -0300 | [diff] [blame] | 1202 | |
Jarod Wilson | 083e472 | 2010-05-04 16:17:05 -0300 | [diff] [blame^] | 1203 | for (i = 0; i < ARRAY_SIZE(imon_panel_key_table); i++) { |
| 1204 | if (imon_panel_key_table[i].hw_code == (code | 0xffee)) { |
| 1205 | keycode = imon_panel_key_table[i].keycode; |
Jarod Wilson | 21677cf | 2010-04-16 18:29:02 -0300 | [diff] [blame] | 1206 | break; |
Jarod Wilson | 083e472 | 2010-05-04 16:17:05 -0300 | [diff] [blame^] | 1207 | } |
| 1208 | } |
Jarod Wilson | 21677cf | 2010-04-16 18:29:02 -0300 | [diff] [blame] | 1209 | |
| 1210 | return keycode; |
| 1211 | } |
| 1212 | |
| 1213 | static bool imon_mouse_event(struct imon_context *ictx, |
| 1214 | unsigned char *buf, int len) |
| 1215 | { |
| 1216 | char rel_x = 0x00, rel_y = 0x00; |
| 1217 | u8 right_shift = 1; |
| 1218 | bool mouse_input = 1; |
| 1219 | int dir = 0; |
| 1220 | |
| 1221 | /* newer iMON device PAD or mouse button */ |
| 1222 | if (ictx->product != 0xffdc && (buf[0] & 0x01) && len == 5) { |
| 1223 | rel_x = buf[2]; |
| 1224 | rel_y = buf[3]; |
| 1225 | right_shift = 1; |
| 1226 | /* 0xffdc iMON PAD or mouse button input */ |
| 1227 | } else if (ictx->product == 0xffdc && (buf[0] & 0x40) && |
| 1228 | !((buf[1] & 0x01) || ((buf[1] >> 2) & 0x01))) { |
| 1229 | rel_x = (buf[1] & 0x08) | (buf[1] & 0x10) >> 2 | |
| 1230 | (buf[1] & 0x20) >> 4 | (buf[1] & 0x40) >> 6; |
| 1231 | if (buf[0] & 0x02) |
| 1232 | rel_x |= ~0x0f; |
| 1233 | rel_x = rel_x + rel_x / 2; |
| 1234 | rel_y = (buf[2] & 0x08) | (buf[2] & 0x10) >> 2 | |
| 1235 | (buf[2] & 0x20) >> 4 | (buf[2] & 0x40) >> 6; |
| 1236 | if (buf[0] & 0x01) |
| 1237 | rel_y |= ~0x0f; |
| 1238 | rel_y = rel_y + rel_y / 2; |
| 1239 | right_shift = 2; |
| 1240 | /* some ffdc devices decode mouse buttons differently... */ |
| 1241 | } else if (ictx->product == 0xffdc && (buf[0] == 0x68)) { |
| 1242 | right_shift = 2; |
| 1243 | /* ch+/- buttons, which we use for an emulated scroll wheel */ |
| 1244 | } else if (ictx->kc == KEY_CHANNELUP && (buf[2] & 0x40) != 0x40) { |
| 1245 | dir = 1; |
| 1246 | } else if (ictx->kc == KEY_CHANNELDOWN && (buf[2] & 0x40) != 0x40) { |
| 1247 | dir = -1; |
| 1248 | } else |
| 1249 | mouse_input = 0; |
| 1250 | |
| 1251 | if (mouse_input) { |
| 1252 | dev_dbg(ictx->dev, "sending mouse data via input subsystem\n"); |
| 1253 | |
| 1254 | if (dir) { |
| 1255 | input_report_rel(ictx->idev, REL_WHEEL, dir); |
| 1256 | } else if (rel_x || rel_y) { |
| 1257 | input_report_rel(ictx->idev, REL_X, rel_x); |
| 1258 | input_report_rel(ictx->idev, REL_Y, rel_y); |
| 1259 | } else { |
| 1260 | input_report_key(ictx->idev, BTN_LEFT, buf[1] & 0x1); |
| 1261 | input_report_key(ictx->idev, BTN_RIGHT, |
| 1262 | buf[1] >> right_shift & 0x1); |
| 1263 | } |
| 1264 | input_sync(ictx->idev); |
| 1265 | ictx->last_keycode = ictx->kc; |
| 1266 | } |
| 1267 | |
| 1268 | return mouse_input; |
| 1269 | } |
| 1270 | |
| 1271 | static void imon_touch_event(struct imon_context *ictx, unsigned char *buf) |
| 1272 | { |
| 1273 | mod_timer(&ictx->ttimer, jiffies + TOUCH_TIMEOUT); |
| 1274 | ictx->touch_x = (buf[0] << 4) | (buf[1] >> 4); |
| 1275 | ictx->touch_y = 0xfff - ((buf[2] << 4) | (buf[1] & 0xf)); |
| 1276 | input_report_abs(ictx->touch, ABS_X, ictx->touch_x); |
| 1277 | input_report_abs(ictx->touch, ABS_Y, ictx->touch_y); |
| 1278 | input_report_key(ictx->touch, BTN_TOUCH, 0x01); |
| 1279 | input_sync(ictx->touch); |
| 1280 | } |
| 1281 | |
| 1282 | static void imon_pad_to_keys(struct imon_context *ictx, unsigned char *buf) |
| 1283 | { |
| 1284 | int dir = 0; |
| 1285 | char rel_x = 0x00, rel_y = 0x00; |
| 1286 | u16 timeout, threshold; |
| 1287 | u64 temp_key; |
| 1288 | u32 remote_key; |
| 1289 | |
| 1290 | /* |
| 1291 | * The imon directional pad functions more like a touchpad. Bytes 3 & 4 |
| 1292 | * contain a position coordinate (x,y), with each component ranging |
| 1293 | * from -14 to 14. We want to down-sample this to only 4 discrete values |
| 1294 | * for up/down/left/right arrow keys. Also, when you get too close to |
| 1295 | * diagonals, it has a tendancy to jump back and forth, so lets try to |
| 1296 | * ignore when they get too close. |
| 1297 | */ |
| 1298 | if (ictx->product != 0xffdc) { |
| 1299 | /* first, pad to 8 bytes so it conforms with everything else */ |
| 1300 | buf[5] = buf[6] = buf[7] = 0; |
| 1301 | timeout = 500; /* in msecs */ |
| 1302 | /* (2*threshold) x (2*threshold) square */ |
| 1303 | threshold = pad_thresh ? pad_thresh : 28; |
| 1304 | rel_x = buf[2]; |
| 1305 | rel_y = buf[3]; |
| 1306 | |
Jarod Wilson | 6718e8a | 2010-04-23 02:27:11 -0300 | [diff] [blame] | 1307 | if (ictx->ir_type == IR_TYPE_OTHER && pad_stabilize) { |
Jarod Wilson | 21677cf | 2010-04-16 18:29:02 -0300 | [diff] [blame] | 1308 | if ((buf[1] == 0) && ((rel_x != 0) || (rel_y != 0))) { |
| 1309 | dir = stabilize((int)rel_x, (int)rel_y, |
| 1310 | timeout, threshold); |
| 1311 | if (!dir) { |
| 1312 | ictx->kc = KEY_UNKNOWN; |
| 1313 | return; |
| 1314 | } |
| 1315 | buf[2] = dir & 0xFF; |
| 1316 | buf[3] = (dir >> 8) & 0xFF; |
| 1317 | memcpy(&temp_key, buf, sizeof(temp_key)); |
| 1318 | remote_key = (u32) (le64_to_cpu(temp_key) |
| 1319 | & 0xffffffff); |
| 1320 | ictx->kc = imon_remote_key_lookup(ictx, |
| 1321 | remote_key); |
| 1322 | } |
| 1323 | } else { |
| 1324 | if (abs(rel_y) > abs(rel_x)) { |
| 1325 | buf[2] = (rel_y > 0) ? 0x7F : 0x80; |
| 1326 | buf[3] = 0; |
| 1327 | ictx->kc = (rel_y > 0) ? KEY_DOWN : KEY_UP; |
| 1328 | } else { |
| 1329 | buf[2] = 0; |
| 1330 | buf[3] = (rel_x > 0) ? 0x7F : 0x80; |
| 1331 | ictx->kc = (rel_x > 0) ? KEY_RIGHT : KEY_LEFT; |
| 1332 | } |
| 1333 | } |
| 1334 | |
| 1335 | /* |
| 1336 | * Handle on-board decoded pad events for e.g. older VFD/iMON-Pad |
| 1337 | * device (15c2:ffdc). The remote generates various codes from |
| 1338 | * 0x68nnnnB7 to 0x6AnnnnB7, the left mouse button generates |
| 1339 | * 0x688301b7 and the right one 0x688481b7. All other keys generate |
| 1340 | * 0x2nnnnnnn. Position coordinate is encoded in buf[1] and buf[2] with |
| 1341 | * reversed endianess. Extract direction from buffer, rotate endianess, |
| 1342 | * adjust sign and feed the values into stabilize(). The resulting codes |
| 1343 | * will be 0x01008000, 0x01007F00, which match the newer devices. |
| 1344 | */ |
| 1345 | } else { |
| 1346 | timeout = 10; /* in msecs */ |
| 1347 | /* (2*threshold) x (2*threshold) square */ |
| 1348 | threshold = pad_thresh ? pad_thresh : 15; |
| 1349 | |
| 1350 | /* buf[1] is x */ |
| 1351 | rel_x = (buf[1] & 0x08) | (buf[1] & 0x10) >> 2 | |
| 1352 | (buf[1] & 0x20) >> 4 | (buf[1] & 0x40) >> 6; |
| 1353 | if (buf[0] & 0x02) |
| 1354 | rel_x |= ~0x10+1; |
| 1355 | /* buf[2] is y */ |
| 1356 | rel_y = (buf[2] & 0x08) | (buf[2] & 0x10) >> 2 | |
| 1357 | (buf[2] & 0x20) >> 4 | (buf[2] & 0x40) >> 6; |
| 1358 | if (buf[0] & 0x01) |
| 1359 | rel_y |= ~0x10+1; |
| 1360 | |
| 1361 | buf[0] = 0x01; |
| 1362 | buf[1] = buf[4] = buf[5] = buf[6] = buf[7] = 0; |
| 1363 | |
Jarod Wilson | 6718e8a | 2010-04-23 02:27:11 -0300 | [diff] [blame] | 1364 | if (ictx->ir_type == IR_TYPE_OTHER && pad_stabilize) { |
Jarod Wilson | 21677cf | 2010-04-16 18:29:02 -0300 | [diff] [blame] | 1365 | dir = stabilize((int)rel_x, (int)rel_y, |
| 1366 | timeout, threshold); |
| 1367 | if (!dir) { |
| 1368 | ictx->kc = KEY_UNKNOWN; |
| 1369 | return; |
| 1370 | } |
| 1371 | buf[2] = dir & 0xFF; |
| 1372 | buf[3] = (dir >> 8) & 0xFF; |
| 1373 | memcpy(&temp_key, buf, sizeof(temp_key)); |
| 1374 | remote_key = (u32) (le64_to_cpu(temp_key) & 0xffffffff); |
| 1375 | ictx->kc = imon_remote_key_lookup(ictx, remote_key); |
| 1376 | } else { |
| 1377 | if (abs(rel_y) > abs(rel_x)) { |
| 1378 | buf[2] = (rel_y > 0) ? 0x7F : 0x80; |
| 1379 | buf[3] = 0; |
| 1380 | ictx->kc = (rel_y > 0) ? KEY_DOWN : KEY_UP; |
| 1381 | } else { |
| 1382 | buf[2] = 0; |
| 1383 | buf[3] = (rel_x > 0) ? 0x7F : 0x80; |
| 1384 | ictx->kc = (rel_x > 0) ? KEY_RIGHT : KEY_LEFT; |
| 1385 | } |
| 1386 | } |
| 1387 | } |
| 1388 | } |
| 1389 | |
| 1390 | static int imon_parse_press_type(struct imon_context *ictx, |
| 1391 | unsigned char *buf, u8 ktype) |
| 1392 | { |
| 1393 | int press_type = 0; |
Jarod Wilson | db190fc | 2010-04-30 16:06:12 -0300 | [diff] [blame] | 1394 | int rep_delay = ictx->idev->rep[REP_DELAY]; |
| 1395 | int rep_period = ictx->idev->rep[REP_PERIOD]; |
Jarod Wilson | 21677cf | 2010-04-16 18:29:02 -0300 | [diff] [blame] | 1396 | |
| 1397 | /* key release of 0x02XXXXXX key */ |
| 1398 | if (ictx->kc == KEY_RESERVED && buf[0] == 0x02 && buf[3] == 0x00) |
| 1399 | ictx->kc = ictx->last_keycode; |
| 1400 | |
| 1401 | /* mouse button release on (some) 0xffdc devices */ |
| 1402 | else if (ictx->kc == KEY_RESERVED && buf[0] == 0x68 && buf[1] == 0x82 && |
| 1403 | buf[2] == 0x81 && buf[3] == 0xb7) |
| 1404 | ictx->kc = ictx->last_keycode; |
| 1405 | |
| 1406 | /* mouse button release on (some other) 0xffdc devices */ |
| 1407 | else if (ictx->kc == KEY_RESERVED && buf[0] == 0x01 && buf[1] == 0x00 && |
| 1408 | buf[2] == 0x81 && buf[3] == 0xb7) |
| 1409 | ictx->kc = ictx->last_keycode; |
| 1410 | |
| 1411 | /* mce-specific button handling */ |
| 1412 | else if (ktype == IMON_KEY_MCE) { |
| 1413 | /* initial press */ |
| 1414 | if (ictx->kc != ictx->last_keycode |
| 1415 | || buf[2] != ictx->mce_toggle_bit) { |
| 1416 | ictx->last_keycode = ictx->kc; |
| 1417 | ictx->mce_toggle_bit = buf[2]; |
| 1418 | press_type = 1; |
| 1419 | mod_timer(&ictx->itimer, |
Jarod Wilson | db190fc | 2010-04-30 16:06:12 -0300 | [diff] [blame] | 1420 | jiffies + msecs_to_jiffies(rep_delay)); |
Jarod Wilson | 21677cf | 2010-04-16 18:29:02 -0300 | [diff] [blame] | 1421 | /* repeat */ |
| 1422 | } else { |
| 1423 | press_type = 2; |
| 1424 | mod_timer(&ictx->itimer, |
Jarod Wilson | db190fc | 2010-04-30 16:06:12 -0300 | [diff] [blame] | 1425 | jiffies + msecs_to_jiffies(rep_period)); |
Jarod Wilson | 21677cf | 2010-04-16 18:29:02 -0300 | [diff] [blame] | 1426 | } |
| 1427 | |
| 1428 | /* incoherent or irrelevant data */ |
| 1429 | } else if (ictx->kc == KEY_RESERVED) |
| 1430 | press_type = -EINVAL; |
| 1431 | |
| 1432 | /* key release of 0xXXXXXXb7 key */ |
| 1433 | else if (ictx->release_code) |
| 1434 | press_type = 0; |
| 1435 | |
| 1436 | /* this is a button press */ |
| 1437 | else |
| 1438 | press_type = 1; |
| 1439 | |
| 1440 | return press_type; |
| 1441 | } |
| 1442 | |
| 1443 | /** |
| 1444 | * Process the incoming packet |
| 1445 | */ |
| 1446 | static void imon_incoming_packet(struct imon_context *ictx, |
| 1447 | struct urb *urb, int intf) |
| 1448 | { |
| 1449 | int len = urb->actual_length; |
| 1450 | unsigned char *buf = urb->transfer_buffer; |
| 1451 | struct device *dev = ictx->dev; |
| 1452 | u32 kc; |
| 1453 | bool norelease = 0; |
| 1454 | int i; |
| 1455 | u64 temp_key; |
| 1456 | u64 panel_key = 0; |
| 1457 | u32 remote_key = 0; |
| 1458 | struct input_dev *idev = NULL; |
| 1459 | int press_type = 0; |
| 1460 | int msec; |
| 1461 | struct timeval t; |
| 1462 | static struct timeval prev_time = { 0, 0 }; |
| 1463 | u8 ktype = IMON_KEY_IMON; |
| 1464 | |
| 1465 | idev = ictx->idev; |
| 1466 | |
| 1467 | /* filter out junk data on the older 0xffdc imon devices */ |
| 1468 | if ((buf[0] == 0xff) && (buf[7] == 0xff)) |
| 1469 | return; |
| 1470 | |
| 1471 | /* Figure out what key was pressed */ |
| 1472 | memcpy(&temp_key, buf, sizeof(temp_key)); |
| 1473 | if (len == 8 && buf[7] == 0xee) { |
| 1474 | ktype = IMON_KEY_PANEL; |
| 1475 | panel_key = le64_to_cpu(temp_key); |
| 1476 | kc = imon_panel_key_lookup(panel_key); |
| 1477 | } else { |
| 1478 | remote_key = (u32) (le64_to_cpu(temp_key) & 0xffffffff); |
Jarod Wilson | 6718e8a | 2010-04-23 02:27:11 -0300 | [diff] [blame] | 1479 | if (ictx->ir_type == IR_TYPE_RC6) { |
Jarod Wilson | 21677cf | 2010-04-16 18:29:02 -0300 | [diff] [blame] | 1480 | if (buf[0] == 0x80) |
| 1481 | ktype = IMON_KEY_MCE; |
| 1482 | kc = imon_mce_key_lookup(ictx, remote_key); |
| 1483 | } else |
| 1484 | kc = imon_remote_key_lookup(ictx, remote_key); |
| 1485 | } |
| 1486 | |
| 1487 | /* keyboard/mouse mode toggle button */ |
| 1488 | if (kc == KEY_KEYBOARD && !ictx->release_code) { |
| 1489 | ictx->last_keycode = kc; |
| 1490 | if (!nomouse) { |
| 1491 | ictx->pad_mouse = ~(ictx->pad_mouse) & 0x1; |
| 1492 | dev_dbg(dev, "toggling to %s mode\n", |
| 1493 | ictx->pad_mouse ? "mouse" : "keyboard"); |
| 1494 | return; |
| 1495 | } else { |
| 1496 | ictx->pad_mouse = 0; |
| 1497 | dev_dbg(dev, "mouse mode disabled, passing key value\n"); |
| 1498 | } |
| 1499 | } |
| 1500 | |
| 1501 | ictx->kc = kc; |
| 1502 | |
| 1503 | /* send touchscreen events through input subsystem if touchpad data */ |
| 1504 | if (ictx->display_type == IMON_DISPLAY_TYPE_VGA && len == 8 && |
| 1505 | buf[7] == 0x86) { |
| 1506 | imon_touch_event(ictx, buf); |
| 1507 | |
| 1508 | /* look for mouse events with pad in mouse mode */ |
| 1509 | } else if (ictx->pad_mouse) { |
| 1510 | if (imon_mouse_event(ictx, buf, len)) |
| 1511 | return; |
| 1512 | } |
| 1513 | |
| 1514 | /* Now for some special handling to convert pad input to arrow keys */ |
| 1515 | if (((len == 5) && (buf[0] == 0x01) && (buf[4] == 0x00)) || |
| 1516 | ((len == 8) && (buf[0] & 0x40) && |
| 1517 | !(buf[1] & 0x1 || buf[1] >> 2 & 0x1))) { |
| 1518 | len = 8; |
| 1519 | imon_pad_to_keys(ictx, buf); |
| 1520 | norelease = 1; |
| 1521 | } |
| 1522 | |
| 1523 | if (debug) { |
| 1524 | printk(KERN_INFO "intf%d decoded packet: ", intf); |
| 1525 | for (i = 0; i < len; ++i) |
| 1526 | printk("%02x ", buf[i]); |
| 1527 | printk("\n"); |
| 1528 | } |
| 1529 | |
| 1530 | press_type = imon_parse_press_type(ictx, buf, ktype); |
| 1531 | if (press_type < 0) |
| 1532 | goto not_input_data; |
| 1533 | |
| 1534 | if (ictx->kc == KEY_UNKNOWN) |
| 1535 | goto unknown_key; |
| 1536 | |
| 1537 | /* KEY_MUTE repeats from MCE and knob need to be suppressed */ |
| 1538 | if ((ictx->kc == KEY_MUTE && ictx->kc == ictx->last_keycode) |
| 1539 | && (buf[7] == 0xee || ktype == IMON_KEY_MCE)) { |
| 1540 | do_gettimeofday(&t); |
| 1541 | msec = tv2int(&t, &prev_time); |
| 1542 | prev_time = t; |
Jarod Wilson | db190fc | 2010-04-30 16:06:12 -0300 | [diff] [blame] | 1543 | if (msec < idev->rep[REP_DELAY]) |
Jarod Wilson | 21677cf | 2010-04-16 18:29:02 -0300 | [diff] [blame] | 1544 | return; |
| 1545 | } |
| 1546 | |
| 1547 | input_report_key(idev, ictx->kc, press_type); |
| 1548 | input_sync(idev); |
| 1549 | |
| 1550 | /* panel keys and some remote keys don't generate a release */ |
| 1551 | if (panel_key || norelease) { |
| 1552 | input_report_key(idev, ictx->kc, 0); |
| 1553 | input_sync(idev); |
| 1554 | } |
| 1555 | |
| 1556 | ictx->last_keycode = ictx->kc; |
| 1557 | |
| 1558 | return; |
| 1559 | |
| 1560 | unknown_key: |
| 1561 | dev_info(dev, "%s: unknown keypress, code 0x%llx\n", __func__, |
| 1562 | (panel_key ? be64_to_cpu(panel_key) : |
| 1563 | be32_to_cpu(remote_key))); |
| 1564 | return; |
| 1565 | |
| 1566 | not_input_data: |
| 1567 | if (len != 8) { |
| 1568 | dev_warn(dev, "imon %s: invalid incoming packet " |
| 1569 | "size (len = %d, intf%d)\n", __func__, len, intf); |
| 1570 | return; |
| 1571 | } |
| 1572 | |
| 1573 | /* iMON 2.4G associate frame */ |
| 1574 | if (buf[0] == 0x00 && |
| 1575 | buf[2] == 0xFF && /* REFID */ |
| 1576 | buf[3] == 0xFF && |
| 1577 | buf[4] == 0xFF && |
| 1578 | buf[5] == 0xFF && /* iMON 2.4G */ |
| 1579 | ((buf[6] == 0x4E && buf[7] == 0xDF) || /* LT */ |
| 1580 | (buf[6] == 0x5E && buf[7] == 0xDF))) { /* DT */ |
| 1581 | dev_warn(dev, "%s: remote associated refid=%02X\n", |
| 1582 | __func__, buf[1]); |
| 1583 | ictx->rf_isassociating = 0; |
| 1584 | } |
| 1585 | } |
| 1586 | |
| 1587 | /** |
| 1588 | * Callback function for USB core API: receive data |
| 1589 | */ |
| 1590 | static void usb_rx_callback_intf0(struct urb *urb) |
| 1591 | { |
| 1592 | struct imon_context *ictx; |
| 1593 | int intfnum = 0; |
| 1594 | |
| 1595 | if (!urb) |
| 1596 | return; |
| 1597 | |
| 1598 | ictx = (struct imon_context *)urb->context; |
| 1599 | if (!ictx) |
| 1600 | return; |
| 1601 | |
| 1602 | switch (urb->status) { |
| 1603 | case -ENOENT: /* usbcore unlink successful! */ |
| 1604 | return; |
| 1605 | |
| 1606 | case -ESHUTDOWN: /* transport endpoint was shut down */ |
| 1607 | break; |
| 1608 | |
| 1609 | case 0: |
| 1610 | imon_incoming_packet(ictx, urb, intfnum); |
| 1611 | break; |
| 1612 | |
| 1613 | default: |
| 1614 | dev_warn(ictx->dev, "imon %s: status(%d): ignored\n", |
| 1615 | __func__, urb->status); |
| 1616 | break; |
| 1617 | } |
| 1618 | |
| 1619 | usb_submit_urb(ictx->rx_urb_intf0, GFP_ATOMIC); |
| 1620 | } |
| 1621 | |
| 1622 | static void usb_rx_callback_intf1(struct urb *urb) |
| 1623 | { |
| 1624 | struct imon_context *ictx; |
| 1625 | int intfnum = 1; |
| 1626 | |
| 1627 | if (!urb) |
| 1628 | return; |
| 1629 | |
| 1630 | ictx = (struct imon_context *)urb->context; |
| 1631 | if (!ictx) |
| 1632 | return; |
| 1633 | |
| 1634 | switch (urb->status) { |
| 1635 | case -ENOENT: /* usbcore unlink successful! */ |
| 1636 | return; |
| 1637 | |
| 1638 | case -ESHUTDOWN: /* transport endpoint was shut down */ |
| 1639 | break; |
| 1640 | |
| 1641 | case 0: |
| 1642 | imon_incoming_packet(ictx, urb, intfnum); |
| 1643 | break; |
| 1644 | |
| 1645 | default: |
| 1646 | dev_warn(ictx->dev, "imon %s: status(%d): ignored\n", |
| 1647 | __func__, urb->status); |
| 1648 | break; |
| 1649 | } |
| 1650 | |
| 1651 | usb_submit_urb(ictx->rx_urb_intf1, GFP_ATOMIC); |
| 1652 | } |
| 1653 | |
| 1654 | static struct input_dev *imon_init_idev(struct imon_context *ictx) |
| 1655 | { |
| 1656 | struct input_dev *idev; |
| 1657 | struct ir_dev_props *props; |
| 1658 | struct ir_input_dev *ir; |
| 1659 | int ret, i; |
Jarod Wilson | 21677cf | 2010-04-16 18:29:02 -0300 | [diff] [blame] | 1660 | |
| 1661 | idev = input_allocate_device(); |
| 1662 | if (!idev) { |
| 1663 | dev_err(ictx->dev, "remote input dev allocation failed\n"); |
| 1664 | goto idev_alloc_failed; |
| 1665 | } |
| 1666 | |
| 1667 | props = kzalloc(sizeof(struct ir_dev_props), GFP_KERNEL); |
| 1668 | if (!props) { |
| 1669 | dev_err(ictx->dev, "remote ir dev props allocation failed\n"); |
| 1670 | goto props_alloc_failed; |
| 1671 | } |
| 1672 | |
| 1673 | ir = kzalloc(sizeof(struct ir_input_dev), GFP_KERNEL); |
Dan Carpenter | 5f6e3c8e | 2010-05-04 08:38:26 -0300 | [diff] [blame] | 1674 | if (!ir) { |
Jarod Wilson | 21677cf | 2010-04-16 18:29:02 -0300 | [diff] [blame] | 1675 | dev_err(ictx->dev, "remote ir input dev allocation failed\n"); |
| 1676 | goto ir_dev_alloc_failed; |
| 1677 | } |
| 1678 | |
| 1679 | snprintf(ictx->name_idev, sizeof(ictx->name_idev), |
| 1680 | "iMON Remote (%04x:%04x)", ictx->vendor, ictx->product); |
| 1681 | idev->name = ictx->name_idev; |
| 1682 | |
| 1683 | usb_make_path(ictx->usbdev_intf0, ictx->phys_idev, |
| 1684 | sizeof(ictx->phys_idev)); |
| 1685 | strlcat(ictx->phys_idev, "/input0", sizeof(ictx->phys_idev)); |
| 1686 | idev->phys = ictx->phys_idev; |
| 1687 | |
Jarod Wilson | db190fc | 2010-04-30 16:06:12 -0300 | [diff] [blame] | 1688 | idev->evbit[0] = BIT_MASK(EV_KEY) | BIT_MASK(EV_REP) | BIT_MASK(EV_REL); |
Jarod Wilson | 21677cf | 2010-04-16 18:29:02 -0300 | [diff] [blame] | 1689 | |
| 1690 | idev->keybit[BIT_WORD(BTN_MOUSE)] = |
| 1691 | BIT_MASK(BTN_LEFT) | BIT_MASK(BTN_RIGHT); |
| 1692 | idev->relbit[0] = BIT_MASK(REL_X) | BIT_MASK(REL_Y) | |
| 1693 | BIT_MASK(REL_WHEEL); |
| 1694 | |
| 1695 | /* panel and/or knob code support */ |
| 1696 | for (i = 0; i < ARRAY_SIZE(imon_panel_key_table); i++) { |
| 1697 | u32 kc = imon_panel_key_table[i].keycode; |
| 1698 | __set_bit(kc, idev->keybit); |
| 1699 | } |
| 1700 | |
Jarod Wilson | 6718e8a | 2010-04-23 02:27:11 -0300 | [diff] [blame] | 1701 | props->priv = ictx; |
Jarod Wilson | 21677cf | 2010-04-16 18:29:02 -0300 | [diff] [blame] | 1702 | props->driver_type = RC_DRIVER_SCANCODE; |
Jarod Wilson | 6718e8a | 2010-04-23 02:27:11 -0300 | [diff] [blame] | 1703 | /* IR_TYPE_OTHER maps to iMON PAD remote, IR_TYPE_RC6 to MCE remote */ |
| 1704 | props->allowed_protos = IR_TYPE_OTHER | IR_TYPE_RC6; |
| 1705 | props->change_protocol = imon_ir_change_protocol; |
| 1706 | ictx->props = props; |
Jarod Wilson | 21677cf | 2010-04-16 18:29:02 -0300 | [diff] [blame] | 1707 | |
| 1708 | ictx->ir = ir; |
| 1709 | memcpy(&ir->dev, ictx->dev, sizeof(struct device)); |
| 1710 | |
| 1711 | usb_to_input_id(ictx->usbdev_intf0, &idev->id); |
| 1712 | idev->dev.parent = ictx->dev; |
| 1713 | |
| 1714 | input_set_drvdata(idev, ir); |
| 1715 | |
Jarod Wilson | 6718e8a | 2010-04-23 02:27:11 -0300 | [diff] [blame] | 1716 | ret = ir_input_register(idev, RC_MAP_IMON_PAD, props, MOD_NAME); |
Jarod Wilson | 21677cf | 2010-04-16 18:29:02 -0300 | [diff] [blame] | 1717 | if (ret < 0) { |
| 1718 | dev_err(ictx->dev, "remote input dev register failed\n"); |
| 1719 | goto idev_register_failed; |
| 1720 | } |
| 1721 | |
| 1722 | return idev; |
| 1723 | |
| 1724 | idev_register_failed: |
| 1725 | kfree(ir); |
| 1726 | ir_dev_alloc_failed: |
| 1727 | kfree(props); |
| 1728 | props_alloc_failed: |
| 1729 | input_free_device(idev); |
| 1730 | idev_alloc_failed: |
| 1731 | |
| 1732 | return NULL; |
| 1733 | } |
| 1734 | |
| 1735 | static struct input_dev *imon_init_touch(struct imon_context *ictx) |
| 1736 | { |
| 1737 | struct input_dev *touch; |
| 1738 | int ret; |
| 1739 | |
| 1740 | touch = input_allocate_device(); |
| 1741 | if (!touch) { |
| 1742 | dev_err(ictx->dev, "touchscreen input dev allocation failed\n"); |
| 1743 | goto touch_alloc_failed; |
| 1744 | } |
| 1745 | |
| 1746 | snprintf(ictx->name_touch, sizeof(ictx->name_touch), |
| 1747 | "iMON USB Touchscreen (%04x:%04x)", |
| 1748 | ictx->vendor, ictx->product); |
| 1749 | touch->name = ictx->name_touch; |
| 1750 | |
| 1751 | usb_make_path(ictx->usbdev_intf1, ictx->phys_touch, |
| 1752 | sizeof(ictx->phys_touch)); |
| 1753 | strlcat(ictx->phys_touch, "/input1", sizeof(ictx->phys_touch)); |
| 1754 | touch->phys = ictx->phys_touch; |
| 1755 | |
| 1756 | touch->evbit[0] = |
| 1757 | BIT_MASK(EV_KEY) | BIT_MASK(EV_ABS); |
| 1758 | touch->keybit[BIT_WORD(BTN_TOUCH)] = |
| 1759 | BIT_MASK(BTN_TOUCH); |
| 1760 | input_set_abs_params(touch, ABS_X, |
| 1761 | 0x00, 0xfff, 0, 0); |
| 1762 | input_set_abs_params(touch, ABS_Y, |
| 1763 | 0x00, 0xfff, 0, 0); |
| 1764 | |
| 1765 | input_set_drvdata(touch, ictx); |
| 1766 | |
| 1767 | usb_to_input_id(ictx->usbdev_intf1, &touch->id); |
| 1768 | touch->dev.parent = ictx->dev; |
| 1769 | ret = input_register_device(touch); |
| 1770 | if (ret < 0) { |
| 1771 | dev_info(ictx->dev, "touchscreen input dev register failed\n"); |
| 1772 | goto touch_register_failed; |
| 1773 | } |
| 1774 | |
| 1775 | return touch; |
| 1776 | |
| 1777 | touch_register_failed: |
| 1778 | input_free_device(ictx->touch); |
Jarod Wilson | 21677cf | 2010-04-16 18:29:02 -0300 | [diff] [blame] | 1779 | |
| 1780 | touch_alloc_failed: |
| 1781 | return NULL; |
| 1782 | } |
| 1783 | |
| 1784 | static bool imon_find_endpoints(struct imon_context *ictx, |
| 1785 | struct usb_host_interface *iface_desc) |
| 1786 | { |
| 1787 | struct usb_endpoint_descriptor *ep; |
| 1788 | struct usb_endpoint_descriptor *rx_endpoint = NULL; |
| 1789 | struct usb_endpoint_descriptor *tx_endpoint = NULL; |
| 1790 | int ifnum = iface_desc->desc.bInterfaceNumber; |
| 1791 | int num_endpts = iface_desc->desc.bNumEndpoints; |
| 1792 | int i, ep_dir, ep_type; |
| 1793 | bool ir_ep_found = 0; |
| 1794 | bool display_ep_found = 0; |
| 1795 | bool tx_control = 0; |
| 1796 | |
| 1797 | /* |
| 1798 | * Scan the endpoint list and set: |
| 1799 | * first input endpoint = IR endpoint |
| 1800 | * first output endpoint = display endpoint |
| 1801 | */ |
| 1802 | for (i = 0; i < num_endpts && !(ir_ep_found && display_ep_found); ++i) { |
| 1803 | ep = &iface_desc->endpoint[i].desc; |
| 1804 | ep_dir = ep->bEndpointAddress & USB_ENDPOINT_DIR_MASK; |
| 1805 | ep_type = ep->bmAttributes & USB_ENDPOINT_XFERTYPE_MASK; |
| 1806 | |
| 1807 | if (!ir_ep_found && ep_dir == USB_DIR_IN && |
| 1808 | ep_type == USB_ENDPOINT_XFER_INT) { |
| 1809 | |
| 1810 | rx_endpoint = ep; |
| 1811 | ir_ep_found = 1; |
| 1812 | dev_dbg(ictx->dev, "%s: found IR endpoint\n", __func__); |
| 1813 | |
| 1814 | } else if (!display_ep_found && ep_dir == USB_DIR_OUT && |
| 1815 | ep_type == USB_ENDPOINT_XFER_INT) { |
| 1816 | tx_endpoint = ep; |
| 1817 | display_ep_found = 1; |
| 1818 | dev_dbg(ictx->dev, "%s: found display endpoint\n", __func__); |
| 1819 | } |
| 1820 | } |
| 1821 | |
| 1822 | if (ifnum == 0) { |
| 1823 | ictx->rx_endpoint_intf0 = rx_endpoint; |
| 1824 | /* |
| 1825 | * tx is used to send characters to lcd/vfd, associate RF |
| 1826 | * remotes, set IR protocol, and maybe more... |
| 1827 | */ |
| 1828 | ictx->tx_endpoint = tx_endpoint; |
| 1829 | } else { |
| 1830 | ictx->rx_endpoint_intf1 = rx_endpoint; |
| 1831 | } |
| 1832 | |
| 1833 | /* |
| 1834 | * If we didn't find a display endpoint, this is probably one of the |
| 1835 | * newer iMON devices that use control urb instead of interrupt |
| 1836 | */ |
| 1837 | if (!display_ep_found) { |
| 1838 | tx_control = 1; |
| 1839 | display_ep_found = 1; |
| 1840 | dev_dbg(ictx->dev, "%s: device uses control endpoint, not " |
| 1841 | "interface OUT endpoint\n", __func__); |
| 1842 | } |
| 1843 | |
| 1844 | /* |
| 1845 | * Some iMON receivers have no display. Unfortunately, it seems |
| 1846 | * that SoundGraph recycles device IDs between devices both with |
| 1847 | * and without... :\ |
| 1848 | */ |
| 1849 | if (ictx->display_type == IMON_DISPLAY_TYPE_NONE) { |
| 1850 | display_ep_found = 0; |
| 1851 | dev_dbg(ictx->dev, "%s: device has no display\n", __func__); |
| 1852 | } |
| 1853 | |
| 1854 | /* |
| 1855 | * iMON Touch devices have a VGA touchscreen, but no "display", as |
| 1856 | * that refers to e.g. /dev/lcd0 (a character device LCD or VFD). |
| 1857 | */ |
| 1858 | if (ictx->display_type == IMON_DISPLAY_TYPE_VGA) { |
| 1859 | display_ep_found = 0; |
| 1860 | dev_dbg(ictx->dev, "%s: iMON Touch device found\n", __func__); |
| 1861 | } |
| 1862 | |
| 1863 | /* Input endpoint is mandatory */ |
| 1864 | if (!ir_ep_found) |
| 1865 | err("%s: no valid input (IR) endpoint found.", __func__); |
| 1866 | |
| 1867 | ictx->tx_control = tx_control; |
| 1868 | |
| 1869 | if (display_ep_found) |
| 1870 | ictx->display_supported = true; |
| 1871 | |
| 1872 | return ir_ep_found; |
| 1873 | |
| 1874 | } |
| 1875 | |
| 1876 | static struct imon_context *imon_init_intf0(struct usb_interface *intf) |
| 1877 | { |
| 1878 | struct imon_context *ictx; |
| 1879 | struct urb *rx_urb; |
| 1880 | struct urb *tx_urb; |
| 1881 | struct device *dev = &intf->dev; |
| 1882 | struct usb_host_interface *iface_desc; |
Mauro Carvalho Chehab | 1f71bae | 2010-04-20 19:11:30 -0300 | [diff] [blame] | 1883 | int ret = -ENOMEM; |
Jarod Wilson | 21677cf | 2010-04-16 18:29:02 -0300 | [diff] [blame] | 1884 | |
| 1885 | ictx = kzalloc(sizeof(struct imon_context), GFP_KERNEL); |
| 1886 | if (!ictx) { |
| 1887 | dev_err(dev, "%s: kzalloc failed for context", __func__); |
| 1888 | goto exit; |
| 1889 | } |
| 1890 | rx_urb = usb_alloc_urb(0, GFP_KERNEL); |
| 1891 | if (!rx_urb) { |
| 1892 | dev_err(dev, "%s: usb_alloc_urb failed for IR urb", __func__); |
| 1893 | goto rx_urb_alloc_failed; |
| 1894 | } |
| 1895 | tx_urb = usb_alloc_urb(0, GFP_KERNEL); |
| 1896 | if (!tx_urb) { |
| 1897 | dev_err(dev, "%s: usb_alloc_urb failed for display urb", |
| 1898 | __func__); |
| 1899 | goto tx_urb_alloc_failed; |
| 1900 | } |
| 1901 | |
| 1902 | mutex_init(&ictx->lock); |
| 1903 | |
| 1904 | mutex_lock(&ictx->lock); |
| 1905 | |
| 1906 | ictx->dev = dev; |
| 1907 | ictx->usbdev_intf0 = usb_get_dev(interface_to_usbdev(intf)); |
| 1908 | ictx->dev_present_intf0 = 1; |
| 1909 | ictx->rx_urb_intf0 = rx_urb; |
| 1910 | ictx->tx_urb = tx_urb; |
| 1911 | |
| 1912 | ictx->vendor = le16_to_cpu(ictx->usbdev_intf0->descriptor.idVendor); |
| 1913 | ictx->product = le16_to_cpu(ictx->usbdev_intf0->descriptor.idProduct); |
| 1914 | |
Mauro Carvalho Chehab | 1f71bae | 2010-04-20 19:11:30 -0300 | [diff] [blame] | 1915 | ret = -ENODEV; |
Jarod Wilson | 21677cf | 2010-04-16 18:29:02 -0300 | [diff] [blame] | 1916 | iface_desc = intf->cur_altsetting; |
Mauro Carvalho Chehab | 1f71bae | 2010-04-20 19:11:30 -0300 | [diff] [blame] | 1917 | if (!imon_find_endpoints(ictx, iface_desc)) { |
Jarod Wilson | 21677cf | 2010-04-16 18:29:02 -0300 | [diff] [blame] | 1918 | goto find_endpoint_failed; |
Mauro Carvalho Chehab | 1f71bae | 2010-04-20 19:11:30 -0300 | [diff] [blame] | 1919 | } |
Jarod Wilson | 21677cf | 2010-04-16 18:29:02 -0300 | [diff] [blame] | 1920 | |
| 1921 | ictx->idev = imon_init_idev(ictx); |
| 1922 | if (!ictx->idev) { |
| 1923 | dev_err(dev, "%s: input device setup failed\n", __func__); |
| 1924 | goto idev_setup_failed; |
| 1925 | } |
| 1926 | |
| 1927 | usb_fill_int_urb(ictx->rx_urb_intf0, ictx->usbdev_intf0, |
| 1928 | usb_rcvintpipe(ictx->usbdev_intf0, |
| 1929 | ictx->rx_endpoint_intf0->bEndpointAddress), |
| 1930 | ictx->usb_rx_buf, sizeof(ictx->usb_rx_buf), |
| 1931 | usb_rx_callback_intf0, ictx, |
| 1932 | ictx->rx_endpoint_intf0->bInterval); |
| 1933 | |
| 1934 | ret = usb_submit_urb(ictx->rx_urb_intf0, GFP_KERNEL); |
| 1935 | if (ret) { |
| 1936 | err("%s: usb_submit_urb failed for intf0 (%d)", |
| 1937 | __func__, ret); |
| 1938 | goto urb_submit_failed; |
| 1939 | } |
| 1940 | |
| 1941 | return ictx; |
| 1942 | |
| 1943 | urb_submit_failed: |
| 1944 | input_unregister_device(ictx->idev); |
| 1945 | input_free_device(ictx->idev); |
| 1946 | idev_setup_failed: |
| 1947 | find_endpoint_failed: |
| 1948 | mutex_unlock(&ictx->lock); |
| 1949 | usb_free_urb(tx_urb); |
| 1950 | tx_urb_alloc_failed: |
| 1951 | usb_free_urb(rx_urb); |
| 1952 | rx_urb_alloc_failed: |
| 1953 | kfree(ictx); |
| 1954 | exit: |
| 1955 | dev_err(dev, "unable to initialize intf0, err %d\n", ret); |
| 1956 | |
| 1957 | return NULL; |
| 1958 | } |
| 1959 | |
| 1960 | static struct imon_context *imon_init_intf1(struct usb_interface *intf, |
| 1961 | struct imon_context *ictx) |
| 1962 | { |
| 1963 | struct urb *rx_urb; |
| 1964 | struct usb_host_interface *iface_desc; |
Mauro Carvalho Chehab | 1f71bae | 2010-04-20 19:11:30 -0300 | [diff] [blame] | 1965 | int ret = -ENOMEM; |
Jarod Wilson | 21677cf | 2010-04-16 18:29:02 -0300 | [diff] [blame] | 1966 | |
| 1967 | rx_urb = usb_alloc_urb(0, GFP_KERNEL); |
| 1968 | if (!rx_urb) { |
| 1969 | err("%s: usb_alloc_urb failed for IR urb", __func__); |
Jarod Wilson | 21677cf | 2010-04-16 18:29:02 -0300 | [diff] [blame] | 1970 | goto rx_urb_alloc_failed; |
| 1971 | } |
| 1972 | |
| 1973 | mutex_lock(&ictx->lock); |
| 1974 | |
| 1975 | if (ictx->display_type == IMON_DISPLAY_TYPE_VGA) { |
| 1976 | init_timer(&ictx->ttimer); |
| 1977 | ictx->ttimer.data = (unsigned long)ictx; |
| 1978 | ictx->ttimer.function = imon_touch_display_timeout; |
| 1979 | } |
| 1980 | |
| 1981 | ictx->usbdev_intf1 = usb_get_dev(interface_to_usbdev(intf)); |
| 1982 | ictx->dev_present_intf1 = 1; |
| 1983 | ictx->rx_urb_intf1 = rx_urb; |
| 1984 | |
Mauro Carvalho Chehab | 1f71bae | 2010-04-20 19:11:30 -0300 | [diff] [blame] | 1985 | ret = -ENODEV; |
Jarod Wilson | 21677cf | 2010-04-16 18:29:02 -0300 | [diff] [blame] | 1986 | iface_desc = intf->cur_altsetting; |
| 1987 | if (!imon_find_endpoints(ictx, iface_desc)) |
| 1988 | goto find_endpoint_failed; |
| 1989 | |
| 1990 | if (ictx->display_type == IMON_DISPLAY_TYPE_VGA) { |
| 1991 | ictx->touch = imon_init_touch(ictx); |
| 1992 | if (!ictx->touch) |
| 1993 | goto touch_setup_failed; |
| 1994 | } else |
| 1995 | ictx->touch = NULL; |
| 1996 | |
| 1997 | usb_fill_int_urb(ictx->rx_urb_intf1, ictx->usbdev_intf1, |
| 1998 | usb_rcvintpipe(ictx->usbdev_intf1, |
| 1999 | ictx->rx_endpoint_intf1->bEndpointAddress), |
| 2000 | ictx->usb_rx_buf, sizeof(ictx->usb_rx_buf), |
| 2001 | usb_rx_callback_intf1, ictx, |
| 2002 | ictx->rx_endpoint_intf1->bInterval); |
| 2003 | |
| 2004 | ret = usb_submit_urb(ictx->rx_urb_intf1, GFP_KERNEL); |
| 2005 | |
| 2006 | if (ret) { |
| 2007 | err("%s: usb_submit_urb failed for intf1 (%d)", |
| 2008 | __func__, ret); |
| 2009 | goto urb_submit_failed; |
| 2010 | } |
| 2011 | |
| 2012 | return ictx; |
| 2013 | |
| 2014 | urb_submit_failed: |
| 2015 | if (ictx->touch) { |
| 2016 | input_unregister_device(ictx->touch); |
| 2017 | input_free_device(ictx->touch); |
| 2018 | } |
| 2019 | touch_setup_failed: |
| 2020 | find_endpoint_failed: |
| 2021 | mutex_unlock(&ictx->lock); |
| 2022 | usb_free_urb(rx_urb); |
| 2023 | rx_urb_alloc_failed: |
| 2024 | dev_err(ictx->dev, "unable to initialize intf0, err %d\n", ret); |
| 2025 | |
| 2026 | return NULL; |
| 2027 | } |
| 2028 | |
| 2029 | /* |
| 2030 | * The 0x15c2:0xffdc device ID was used for umpteen different imon |
| 2031 | * devices, and all of them constantly spew interrupts, even when there |
| 2032 | * is no actual data to report. However, byte 6 of this buffer looks like |
| 2033 | * its unique across device variants, so we're trying to key off that to |
| 2034 | * figure out which display type (if any) and what IR protocol the device |
Jarod Wilson | 6718e8a | 2010-04-23 02:27:11 -0300 | [diff] [blame] | 2035 | * actually supports. These devices have their IR protocol hard-coded into |
| 2036 | * their firmware, they can't be changed on the fly like the newer hardware. |
Jarod Wilson | 21677cf | 2010-04-16 18:29:02 -0300 | [diff] [blame] | 2037 | */ |
| 2038 | static void imon_get_ffdc_type(struct imon_context *ictx) |
| 2039 | { |
| 2040 | u8 ffdc_cfg_byte = ictx->usb_rx_buf[6]; |
| 2041 | u8 detected_display_type = IMON_DISPLAY_TYPE_NONE; |
Jarod Wilson | 6718e8a | 2010-04-23 02:27:11 -0300 | [diff] [blame] | 2042 | u64 allowed_protos = IR_TYPE_OTHER; |
Jarod Wilson | 21677cf | 2010-04-16 18:29:02 -0300 | [diff] [blame] | 2043 | |
| 2044 | switch (ffdc_cfg_byte) { |
| 2045 | /* iMON Knob, no display, iMON IR + vol knob */ |
| 2046 | case 0x21: |
| 2047 | dev_info(ictx->dev, "0xffdc iMON Knob, iMON IR"); |
| 2048 | ictx->display_supported = false; |
| 2049 | break; |
| 2050 | /* iMON VFD, no IR (does have vol knob tho) */ |
| 2051 | case 0x35: |
| 2052 | dev_info(ictx->dev, "0xffdc iMON VFD + knob, no IR"); |
| 2053 | detected_display_type = IMON_DISPLAY_TYPE_VFD; |
Jarod Wilson | 21677cf | 2010-04-16 18:29:02 -0300 | [diff] [blame] | 2054 | break; |
| 2055 | /* iMON VFD, iMON IR */ |
| 2056 | case 0x24: |
| 2057 | case 0x85: |
| 2058 | dev_info(ictx->dev, "0xffdc iMON VFD, iMON IR"); |
| 2059 | detected_display_type = IMON_DISPLAY_TYPE_VFD; |
| 2060 | break; |
| 2061 | /* iMON LCD, MCE IR */ |
| 2062 | case 0x9f: |
| 2063 | dev_info(ictx->dev, "0xffdc iMON LCD, MCE IR"); |
| 2064 | detected_display_type = IMON_DISPLAY_TYPE_LCD; |
Jarod Wilson | 6718e8a | 2010-04-23 02:27:11 -0300 | [diff] [blame] | 2065 | allowed_protos = IR_TYPE_RC6; |
Jarod Wilson | 21677cf | 2010-04-16 18:29:02 -0300 | [diff] [blame] | 2066 | break; |
| 2067 | default: |
| 2068 | dev_info(ictx->dev, "Unknown 0xffdc device, " |
| 2069 | "defaulting to VFD and iMON IR"); |
| 2070 | detected_display_type = IMON_DISPLAY_TYPE_VFD; |
| 2071 | break; |
| 2072 | } |
| 2073 | |
Jarod Wilson | 6718e8a | 2010-04-23 02:27:11 -0300 | [diff] [blame] | 2074 | printk(KERN_CONT " (id 0x%02x)\n", ffdc_cfg_byte); |
Jarod Wilson | 21677cf | 2010-04-16 18:29:02 -0300 | [diff] [blame] | 2075 | |
| 2076 | ictx->display_type = detected_display_type; |
Jarod Wilson | 6718e8a | 2010-04-23 02:27:11 -0300 | [diff] [blame] | 2077 | ictx->props->allowed_protos = allowed_protos; |
| 2078 | ictx->ir_type = allowed_protos; |
Jarod Wilson | 21677cf | 2010-04-16 18:29:02 -0300 | [diff] [blame] | 2079 | } |
| 2080 | |
| 2081 | static void imon_set_display_type(struct imon_context *ictx, |
| 2082 | struct usb_interface *intf) |
| 2083 | { |
| 2084 | u8 configured_display_type = IMON_DISPLAY_TYPE_VFD; |
| 2085 | |
| 2086 | /* |
| 2087 | * Try to auto-detect the type of display if the user hasn't set |
| 2088 | * it by hand via the display_type modparam. Default is VFD. |
| 2089 | */ |
| 2090 | |
| 2091 | if (display_type == IMON_DISPLAY_TYPE_AUTO) { |
| 2092 | switch (ictx->product) { |
| 2093 | case 0xffdc: |
| 2094 | /* set in imon_get_ffdc_type() */ |
| 2095 | configured_display_type = ictx->display_type; |
| 2096 | break; |
| 2097 | case 0x0034: |
| 2098 | case 0x0035: |
| 2099 | configured_display_type = IMON_DISPLAY_TYPE_VGA; |
| 2100 | break; |
| 2101 | case 0x0038: |
| 2102 | case 0x0039: |
| 2103 | case 0x0045: |
| 2104 | configured_display_type = IMON_DISPLAY_TYPE_LCD; |
| 2105 | break; |
| 2106 | case 0x003c: |
| 2107 | case 0x0041: |
| 2108 | case 0x0042: |
| 2109 | case 0x0043: |
| 2110 | configured_display_type = IMON_DISPLAY_TYPE_NONE; |
| 2111 | ictx->display_supported = false; |
| 2112 | break; |
| 2113 | case 0x0036: |
| 2114 | case 0x0044: |
| 2115 | default: |
| 2116 | configured_display_type = IMON_DISPLAY_TYPE_VFD; |
| 2117 | break; |
| 2118 | } |
| 2119 | } else { |
| 2120 | configured_display_type = display_type; |
| 2121 | if (display_type == IMON_DISPLAY_TYPE_NONE) |
| 2122 | ictx->display_supported = false; |
| 2123 | else |
| 2124 | ictx->display_supported = true; |
| 2125 | dev_info(ictx->dev, "%s: overriding display type to %d via " |
| 2126 | "modparam\n", __func__, display_type); |
| 2127 | } |
| 2128 | |
| 2129 | ictx->display_type = configured_display_type; |
| 2130 | } |
| 2131 | |
| 2132 | static void imon_init_display(struct imon_context *ictx, |
| 2133 | struct usb_interface *intf) |
| 2134 | { |
| 2135 | int ret; |
| 2136 | |
| 2137 | dev_dbg(ictx->dev, "Registering iMON display with sysfs\n"); |
| 2138 | |
| 2139 | /* set up sysfs entry for built-in clock */ |
| 2140 | ret = sysfs_create_group(&intf->dev.kobj, |
| 2141 | &imon_display_attribute_group); |
| 2142 | if (ret) |
| 2143 | dev_err(ictx->dev, "Could not create display sysfs " |
| 2144 | "entries(%d)", ret); |
| 2145 | |
| 2146 | if (ictx->display_type == IMON_DISPLAY_TYPE_LCD) |
| 2147 | ret = usb_register_dev(intf, &imon_lcd_class); |
| 2148 | else |
| 2149 | ret = usb_register_dev(intf, &imon_vfd_class); |
| 2150 | if (ret) |
| 2151 | /* Not a fatal error, so ignore */ |
| 2152 | dev_info(ictx->dev, "could not get a minor number for " |
| 2153 | "display\n"); |
| 2154 | |
| 2155 | } |
| 2156 | |
| 2157 | /** |
| 2158 | * Callback function for USB core API: Probe |
| 2159 | */ |
| 2160 | static int __devinit imon_probe(struct usb_interface *interface, |
| 2161 | const struct usb_device_id *id) |
| 2162 | { |
| 2163 | struct usb_device *usbdev = NULL; |
| 2164 | struct usb_host_interface *iface_desc = NULL; |
| 2165 | struct usb_interface *first_if; |
| 2166 | struct device *dev = &interface->dev; |
| 2167 | int ifnum, code_length, sysfs_err; |
| 2168 | int ret = 0; |
| 2169 | struct imon_context *ictx = NULL; |
| 2170 | struct imon_context *first_if_ctx = NULL; |
| 2171 | u16 vendor, product; |
| 2172 | const unsigned char fp_packet[] = { 0x40, 0x00, 0x00, 0x00, |
| 2173 | 0x00, 0x00, 0x00, 0x88 }; |
| 2174 | |
| 2175 | code_length = BUF_CHUNK_SIZE * 8; |
| 2176 | |
| 2177 | usbdev = usb_get_dev(interface_to_usbdev(interface)); |
| 2178 | iface_desc = interface->cur_altsetting; |
| 2179 | ifnum = iface_desc->desc.bInterfaceNumber; |
| 2180 | vendor = le16_to_cpu(usbdev->descriptor.idVendor); |
| 2181 | product = le16_to_cpu(usbdev->descriptor.idProduct); |
| 2182 | |
| 2183 | dev_dbg(dev, "%s: found iMON device (%04x:%04x, intf%d)\n", |
| 2184 | __func__, vendor, product, ifnum); |
| 2185 | |
| 2186 | /* prevent races probing devices w/multiple interfaces */ |
| 2187 | mutex_lock(&driver_lock); |
| 2188 | |
| 2189 | first_if = usb_ifnum_to_if(usbdev, 0); |
| 2190 | first_if_ctx = (struct imon_context *)usb_get_intfdata(first_if); |
| 2191 | |
| 2192 | if (ifnum == 0) { |
| 2193 | ictx = imon_init_intf0(interface); |
| 2194 | if (!ictx) { |
| 2195 | err("%s: failed to initialize context!\n", __func__); |
| 2196 | ret = -ENODEV; |
| 2197 | goto fail; |
| 2198 | } |
| 2199 | |
| 2200 | if (product == 0xffdc) { |
| 2201 | /* RF products *also* use 0xffdc... sigh... */ |
| 2202 | sysfs_err = sysfs_create_group(&interface->dev.kobj, |
| 2203 | &imon_rf_attribute_group); |
| 2204 | if (sysfs_err) |
| 2205 | err("%s: Could not create RF sysfs entries(%d)", |
| 2206 | __func__, sysfs_err); |
| 2207 | } |
| 2208 | |
| 2209 | } else { |
| 2210 | /* this is the secondary interface on the device */ |
| 2211 | ictx = imon_init_intf1(interface, first_if_ctx); |
| 2212 | if (!ictx) { |
| 2213 | err("%s: failed to attach to context!\n", __func__); |
| 2214 | ret = -ENODEV; |
| 2215 | goto fail; |
| 2216 | } |
| 2217 | |
| 2218 | } |
| 2219 | |
| 2220 | usb_set_intfdata(interface, ictx); |
| 2221 | |
| 2222 | if (ifnum == 0) { |
| 2223 | /* Enable front-panel buttons and/or knobs */ |
| 2224 | memcpy(ictx->usb_tx_buf, &fp_packet, sizeof(fp_packet)); |
| 2225 | ret = send_packet(ictx); |
| 2226 | /* Not fatal, but warn about it */ |
| 2227 | if (ret) |
| 2228 | dev_info(dev, "failed to enable panel buttons " |
| 2229 | "and/or knobs\n"); |
| 2230 | |
| 2231 | if (product == 0xffdc) |
| 2232 | imon_get_ffdc_type(ictx); |
Jarod Wilson | 21677cf | 2010-04-16 18:29:02 -0300 | [diff] [blame] | 2233 | |
| 2234 | imon_set_display_type(ictx, interface); |
| 2235 | |
| 2236 | if (ictx->display_supported) |
| 2237 | imon_init_display(ictx, interface); |
| 2238 | } |
| 2239 | |
| 2240 | /* set IR protocol/remote type */ |
Jarod Wilson | 6718e8a | 2010-04-23 02:27:11 -0300 | [diff] [blame] | 2241 | ret = imon_ir_change_protocol(ictx, ictx->ir_type); |
| 2242 | if (ret) { |
| 2243 | dev_warn(dev, "%s: failed to set IR protocol, falling back " |
| 2244 | "to standard iMON protocol mode\n", __func__); |
| 2245 | ictx->ir_type = IR_TYPE_OTHER; |
| 2246 | } |
Jarod Wilson | 21677cf | 2010-04-16 18:29:02 -0300 | [diff] [blame] | 2247 | |
| 2248 | dev_info(dev, "iMON device (%04x:%04x, intf%d) on " |
| 2249 | "usb<%d:%d> initialized\n", vendor, product, ifnum, |
| 2250 | usbdev->bus->busnum, usbdev->devnum); |
| 2251 | |
| 2252 | mutex_unlock(&ictx->lock); |
| 2253 | mutex_unlock(&driver_lock); |
| 2254 | |
| 2255 | return 0; |
| 2256 | |
| 2257 | fail: |
| 2258 | mutex_unlock(&driver_lock); |
| 2259 | dev_err(dev, "unable to register, err %d\n", ret); |
| 2260 | |
| 2261 | return ret; |
| 2262 | } |
| 2263 | |
| 2264 | /** |
| 2265 | * Callback function for USB core API: disconnect |
| 2266 | */ |
| 2267 | static void __devexit imon_disconnect(struct usb_interface *interface) |
| 2268 | { |
| 2269 | struct imon_context *ictx; |
| 2270 | struct device *dev; |
| 2271 | int ifnum; |
| 2272 | |
| 2273 | /* prevent races with multi-interface device probing and display_open */ |
| 2274 | mutex_lock(&driver_lock); |
| 2275 | |
| 2276 | ictx = usb_get_intfdata(interface); |
| 2277 | dev = ictx->dev; |
| 2278 | ifnum = interface->cur_altsetting->desc.bInterfaceNumber; |
| 2279 | |
| 2280 | mutex_lock(&ictx->lock); |
| 2281 | |
| 2282 | /* |
| 2283 | * sysfs_remove_group is safe to call even if sysfs_create_group |
| 2284 | * hasn't been called |
| 2285 | */ |
| 2286 | sysfs_remove_group(&interface->dev.kobj, |
| 2287 | &imon_display_attribute_group); |
| 2288 | sysfs_remove_group(&interface->dev.kobj, |
| 2289 | &imon_rf_attribute_group); |
| 2290 | |
| 2291 | usb_set_intfdata(interface, NULL); |
| 2292 | |
| 2293 | /* Abort ongoing write */ |
| 2294 | if (ictx->tx.busy) { |
| 2295 | usb_kill_urb(ictx->tx_urb); |
| 2296 | complete_all(&ictx->tx.finished); |
| 2297 | } |
| 2298 | |
| 2299 | if (ifnum == 0) { |
| 2300 | ictx->dev_present_intf0 = 0; |
| 2301 | usb_kill_urb(ictx->rx_urb_intf0); |
| 2302 | input_unregister_device(ictx->idev); |
| 2303 | if (ictx->display_supported) { |
| 2304 | if (ictx->display_type == IMON_DISPLAY_TYPE_LCD) |
| 2305 | usb_deregister_dev(interface, &imon_lcd_class); |
| 2306 | else |
| 2307 | usb_deregister_dev(interface, &imon_vfd_class); |
| 2308 | } |
| 2309 | } else { |
| 2310 | ictx->dev_present_intf1 = 0; |
| 2311 | usb_kill_urb(ictx->rx_urb_intf1); |
| 2312 | if (ictx->display_type == IMON_DISPLAY_TYPE_VGA) |
| 2313 | input_unregister_device(ictx->touch); |
| 2314 | } |
| 2315 | |
| 2316 | if (!ictx->dev_present_intf0 && !ictx->dev_present_intf1) { |
| 2317 | if (ictx->display_type == IMON_DISPLAY_TYPE_VGA) |
| 2318 | del_timer_sync(&ictx->ttimer); |
| 2319 | mutex_unlock(&ictx->lock); |
| 2320 | if (!ictx->display_isopen) |
| 2321 | free_imon_context(ictx); |
| 2322 | } else { |
Jarod Wilson | 6718e8a | 2010-04-23 02:27:11 -0300 | [diff] [blame] | 2323 | if (ictx->ir_type == IR_TYPE_RC6) |
Jarod Wilson | 21677cf | 2010-04-16 18:29:02 -0300 | [diff] [blame] | 2324 | del_timer_sync(&ictx->itimer); |
| 2325 | mutex_unlock(&ictx->lock); |
| 2326 | } |
| 2327 | |
| 2328 | mutex_unlock(&driver_lock); |
| 2329 | |
| 2330 | dev_dbg(dev, "%s: iMON device (intf%d) disconnected\n", |
| 2331 | __func__, ifnum); |
| 2332 | } |
| 2333 | |
| 2334 | static int imon_suspend(struct usb_interface *intf, pm_message_t message) |
| 2335 | { |
| 2336 | struct imon_context *ictx = usb_get_intfdata(intf); |
| 2337 | int ifnum = intf->cur_altsetting->desc.bInterfaceNumber; |
| 2338 | |
| 2339 | if (ifnum == 0) |
| 2340 | usb_kill_urb(ictx->rx_urb_intf0); |
| 2341 | else |
| 2342 | usb_kill_urb(ictx->rx_urb_intf1); |
| 2343 | |
| 2344 | return 0; |
| 2345 | } |
| 2346 | |
| 2347 | static int imon_resume(struct usb_interface *intf) |
| 2348 | { |
| 2349 | int rc = 0; |
| 2350 | struct imon_context *ictx = usb_get_intfdata(intf); |
| 2351 | int ifnum = intf->cur_altsetting->desc.bInterfaceNumber; |
| 2352 | |
| 2353 | if (ifnum == 0) { |
| 2354 | usb_fill_int_urb(ictx->rx_urb_intf0, ictx->usbdev_intf0, |
| 2355 | usb_rcvintpipe(ictx->usbdev_intf0, |
| 2356 | ictx->rx_endpoint_intf0->bEndpointAddress), |
| 2357 | ictx->usb_rx_buf, sizeof(ictx->usb_rx_buf), |
| 2358 | usb_rx_callback_intf0, ictx, |
| 2359 | ictx->rx_endpoint_intf0->bInterval); |
| 2360 | |
| 2361 | rc = usb_submit_urb(ictx->rx_urb_intf0, GFP_ATOMIC); |
| 2362 | |
| 2363 | } else { |
| 2364 | usb_fill_int_urb(ictx->rx_urb_intf1, ictx->usbdev_intf1, |
| 2365 | usb_rcvintpipe(ictx->usbdev_intf1, |
| 2366 | ictx->rx_endpoint_intf1->bEndpointAddress), |
| 2367 | ictx->usb_rx_buf, sizeof(ictx->usb_rx_buf), |
| 2368 | usb_rx_callback_intf1, ictx, |
| 2369 | ictx->rx_endpoint_intf1->bInterval); |
| 2370 | |
| 2371 | rc = usb_submit_urb(ictx->rx_urb_intf1, GFP_ATOMIC); |
| 2372 | } |
| 2373 | |
| 2374 | return rc; |
| 2375 | } |
| 2376 | |
| 2377 | static int __init imon_init(void) |
| 2378 | { |
| 2379 | int rc; |
| 2380 | |
| 2381 | rc = usb_register(&imon_driver); |
| 2382 | if (rc) { |
| 2383 | err("%s: usb register failed(%d)", __func__, rc); |
| 2384 | rc = -ENODEV; |
| 2385 | } |
| 2386 | |
| 2387 | return rc; |
| 2388 | } |
| 2389 | |
| 2390 | static void __exit imon_exit(void) |
| 2391 | { |
| 2392 | usb_deregister(&imon_driver); |
| 2393 | } |
| 2394 | |
| 2395 | module_init(imon_init); |
| 2396 | module_exit(imon_exit); |