| 1 | --- /dev/null |
| 2 | +++ b/drivers/usb/serial/sierra.c |
| 3 | @@ -0,0 +1,1446 @@ |
| 4 | +/* |
| 5 | + * Sierra Wireless CDMA Wireless Serial USB drive |
| 6 | + * |
| 7 | + * Current Copy modified by: Kevin Lloyd <linux@sierrawireless.com> |
| 8 | + * Original Copy written by: 2005 Greg Kroah-Hartman <gregkh <at> suse.de> |
| 9 | + * |
| 10 | + * |
| 11 | + * This program is free software; you can redistribute it and/or |
| 12 | + * modify it under the terms of the GNU General Public License version |
| 13 | + * 2 as published by the Free Software Foundation. |
| 14 | + * |
| 15 | + * Version history: |
| 16 | + Version 1.03 (Lloyd): |
| 17 | + Included support for DTR control and enhanced buffering (should help |
| 18 | + speed). |
| 19 | + */ |
| 20 | + |
| 21 | +#include <linux/config.h> |
| 22 | +#include <linux/kernel.h> |
| 23 | +#include <linux/init.h> |
| 24 | +#include <linux/slab.h> |
| 25 | +#include <linux/tty.h> |
| 26 | +#include <linux/tty_driver.h> |
| 27 | +#include <linux/tty_flip.h> |
| 28 | +#include <linux/module.h> |
| 29 | +#include <linux/usb.h> |
| 30 | +#include <linux/mm.h> |
| 31 | +#include <asm/uaccess.h> |
| 32 | +#include <linux/errno.h> |
| 33 | +#include <linux/list.h> |
| 34 | +#include <linux/spinlock.h> |
| 35 | +#include <linux/smp_lock.h> |
| 36 | + |
| 37 | +#ifdef CONFIG_USB_SERIAL_DEBUG |
| 38 | + static int debug = 1; |
| 39 | +#else |
| 40 | + static int debug; |
| 41 | +#endif |
| 42 | + |
| 43 | +#include "usb-serial.h" |
| 44 | +#include "sierra.h" |
| 45 | +#if defined(CONFIG_USB_SERIAL_PL2303) || defined(CONFIG_USB_SERIAL_PL2303_MODULE) |
| 46 | +#include "pl2303.h" // see /* BEGIN HORRIBLE HACK FOR PL2303 */ below |
| 47 | +#endif |
| 48 | + |
| 49 | +#define DRIVER_VERSION "v1.03" |
| 50 | + |
| 51 | +#if 0 |
| 52 | +#define USB_VENDER_REQUEST_SET_DEVICE_POWER_STATE 0 |
| 53 | + |
| 54 | +#define USB_DEVICE_POWER_STATE_D0 0x0000 |
| 55 | +#define USB_DEVICE_POWER_STATE_D1 0x0001 |
| 56 | +#define USB_DEVICE_POWER_STATE_D2 0x0002 |
| 57 | +#define USB_DEVICE_POWER_STATE_D3 0x0003 |
| 58 | + |
| 59 | +#define SET_CONTROL_LINE_STATE 0x22 |
| 60 | +/* |
| 61 | + * Output control lines. |
| 62 | + */ |
| 63 | + |
| 64 | +#define ACM_CTRL_DTR 0x01 |
| 65 | +#define ACM_CTRL_RTS 0x02 |
| 66 | +#endif |
| 67 | + |
| 68 | +//static int sw_attach(struct usb_serial *serial); |
| 69 | +static void sw_usb_serial_generic_shutdown(struct usb_serial *serial); |
| 70 | + |
| 71 | +static int sw_usb_serial_generic_open(struct usb_serial_port *port, struct file *filp); |
| 72 | +static void sw_usb_serial_generic_close(struct usb_serial_port *port, struct file *filp); |
| 73 | + |
| 74 | +#if 1 |
| 75 | +/*-----------------------------------------------------------*/ |
| 76 | +static int serial_refcount; |
| 77 | +static struct tty_driver serial_tty_driver; |
| 78 | +static struct tty_struct * serial_tty[SERIAL_TTY_MINORS]; |
| 79 | +static struct termios * serial_termios[SERIAL_TTY_MINORS]; |
| 80 | +static struct termios * serial_termios_locked[SERIAL_TTY_MINORS]; |
| 81 | +static struct usb_serial *serial_table[SERIAL_TTY_MINORS]; /* initially all NULL */ |
| 82 | + |
| 83 | +static LIST_HEAD(usb_serial_driver_list); |
| 84 | +static struct usb_serial *get_free_serial (int num_ports, int *minor); |
| 85 | +static void generic_write_bulk_callback (struct urb *urb); |
| 86 | +static void * usb_serial_probe(struct usb_device *dev, unsigned int ifnum,const struct usb_device_id *id); |
| 87 | +static void usb_serial_disconnect(struct usb_device *dev, void *ptr); |
| 88 | +static void sw_usb_serial_generic_read_bulk_callback (struct urb *urb); |
| 89 | +static void port_softint(void *private); |
| 90 | +static void return_serial (struct usb_serial *serial); |
| 91 | +static struct usb_serial *get_free_serial (int num_ports, int *minor); |
| 92 | +static int serial_read_proc (char *page, char **start, off_t off, int count, int *eof, void *data); |
| 93 | +/*-----------------------------------------------------------*/ |
| 94 | + |
| 95 | +#endif |
| 96 | + |
| 97 | + |
| 98 | +static struct usb_device_id id_table [] = { |
| 99 | + { USB_DEVICE(0x1199, 0x0017) }, /* Sierra Wireless EM5625 */ |
| 100 | + { USB_DEVICE(0x1199, 0x0018) }, /* Sierra Wireless MC5720 */ |
| 101 | + { USB_DEVICE(0x1199, 0x0218) }, /* Sierra Wireless MC5720 */ |
| 102 | + { USB_DEVICE(0x0f30, 0x1b1d) }, /* Sierra Wireless MC5720 */ |
| 103 | + { USB_DEVICE(0x1199, 0x0020) }, /* Sierra Wireless MC5725 */ |
| 104 | + { USB_DEVICE(0x1199, 0x0220) }, /* Sierra Wireless MC5725 */ |
| 105 | + { USB_DEVICE(0x1199, 0x0019) }, /* Sierra Wireless AirCard 595 */ |
| 106 | + { USB_DEVICE(0x1199, 0x0021) }, /* Sierra Wireless AirCard 597E */ |
| 107 | + { USB_DEVICE(0x1199, 0x0120) }, /* Sierra Wireless USB Dongle 595U */ |
| 108 | + { USB_DEVICE(0x1199, 0x0023) }, /* Sierra Wireless C597 */ |
| 109 | + |
| 110 | + { USB_DEVICE(0x1199, 0x6802) }, /* Sierra Wireless MC8755 */ |
| 111 | + { USB_DEVICE(0x1199, 0x6804) }, /* Sierra Wireless MC8755 */ |
| 112 | + { USB_DEVICE(0x1199, 0x6803) }, /* Sierra Wireless MC8765 */ |
| 113 | + { USB_DEVICE(0x1199, 0x6812) }, /* Sierra Wireless MC8775 & AC 875U */ |
| 114 | + { USB_DEVICE(0x1199, 0x6813) }, /* Sierra Wireless MC8775 (Thinkpad internal) */ |
| 115 | + { USB_DEVICE(0x1199, 0x6815) }, /* Sierra Wireless MC8775 */ |
| 116 | + { USB_DEVICE(0x03f0, 0x1e1d) }, /* HP hs2300 a.k.a MC8775 */ |
| 117 | + { USB_DEVICE(0x1199, 0x6820) }, /* Sierra Wireless AirCard 875 */ |
| 118 | + { USB_DEVICE(0x1199, 0x6821) }, /* Sierra Wireless AirCard 875U */ |
| 119 | + { USB_DEVICE(0x1199, 0x6832) }, /* Sierra Wireless MC8780*/ |
| 120 | + { USB_DEVICE(0x1199, 0x6833) }, /* Sierra Wireless MC8781*/ |
| 121 | + { USB_DEVICE(0x1199, 0x683B) }, /* Sierra Wireless MC8785 Composite*/ |
| 122 | + { USB_DEVICE(0x1199, 0x6850) }, /* Sierra Wireless AirCard 880 */ |
| 123 | + { USB_DEVICE(0x1199, 0x6851) }, /* Sierra Wireless AirCard 881 */ |
| 124 | + { USB_DEVICE(0x1199, 0x6852) }, /* Sierra Wireless AirCard 880 E */ |
| 125 | + { USB_DEVICE(0x1199, 0x6853) }, /* Sierra Wireless AirCard 881 E */ |
| 126 | + { USB_DEVICE(0x1199, 0x6855) }, /* Sierra Wireless AirCard 880 U */ |
| 127 | + { USB_DEVICE(0x1199, 0x6856) }, /* Sierra Wireless AirCard 881 U */ |
| 128 | + { USB_DEVICE(0x1199, 0x6859) }, /* Sierra Wireless AirCard 885 E */ |
| 129 | + { USB_DEVICE(0x1199, 0x685A) }, /* Sierra Wireless AirCard 885 E */ |
| 130 | + |
| 131 | + { USB_DEVICE(0x1199, 0x6468) }, /* Sierra Wireless MP3G - EVDO */ |
| 132 | + { USB_DEVICE(0x1199, 0x6469) }, /* Sierra Wireless MP3G - UMTS/HSPA */ |
| 133 | + |
| 134 | + { USB_DEVICE(0x1199, 0x0112) }, /* Sierra Wireless AirCard 580 */ |
| 135 | + { USB_DEVICE(0x0F3D, 0x0112) }, /* AirPrime/Sierra Wireless PC 5220 */ |
| 136 | + { USB_DEVICE(0x05C6, 0x6613) }, /* Onda H600/ZTE MF330 */ |
| 137 | + { } |
| 138 | +}; |
| 139 | + |
| 140 | +MODULE_DEVICE_TABLE(usb, id_table); |
| 141 | + |
| 142 | +static struct usb_driver sierra_driver = { |
| 143 | +// .owner = THIS_MODULE, |
| 144 | + .name = "Sierra wireless", |
| 145 | + .probe = usb_serial_probe, |
| 146 | + .disconnect = usb_serial_disconnect, |
| 147 | + .id_table = id_table, |
| 148 | +}; |
| 149 | + |
| 150 | +static struct usb_serial_device_type sierra_device = { |
| 151 | +// .driver = { |
| 152 | + .owner = THIS_MODULE, |
| 153 | + .name = "Sierra Wireless", |
| 154 | +// }, |
| 155 | + .id_table = id_table, |
| 156 | + .num_interrupt_in = NUM_DONT_CARE, |
| 157 | + .num_bulk_in = NUM_DONT_CARE, |
| 158 | + .num_bulk_out = NUM_DONT_CARE, |
| 159 | + .num_ports = 3, |
| 160 | + //.startup = sw_attach, |
| 161 | + .shutdown = sw_usb_serial_generic_shutdown, |
| 162 | + .open = sw_usb_serial_generic_open, |
| 163 | + .close = sw_usb_serial_generic_close, |
| 164 | +}; |
| 165 | + |
| 166 | +#define MAX_NUM_PORTS 8 |
| 167 | + |
| 168 | +/* local function prototypes */ |
| 169 | +static int serial_open (struct tty_struct *tty, struct file * filp); |
| 170 | +static void serial_close (struct tty_struct *tty, struct file * filp); |
| 171 | +static int serial_write (struct tty_struct * tty, int from_user, const unsigned char *buf, int count); |
| 172 | +static int serial_write_room (struct tty_struct *tty); |
| 173 | +static int serial_chars_in_buffer (struct tty_struct *tty); |
| 174 | +static void serial_throttle (struct tty_struct * tty); |
| 175 | +static void serial_unthrottle (struct tty_struct * tty); |
| 176 | +static int serial_ioctl (struct tty_struct *tty, struct file * file, unsigned int cmd, unsigned long arg); |
| 177 | +static void serial_set_termios (struct tty_struct *tty, struct termios * old); |
| 178 | +//static void serial_shutdown (struct usb_serial *serial); |
| 179 | +static void serial_break (struct tty_struct *tty, int break_state); |
| 180 | +static int generic_write (struct usb_serial_port *port, int from_user, const unsigned char *buf, int count); |
| 181 | +static int generic_write_room (struct usb_serial_port *port); |
| 182 | +static void generic_cleanup (struct usb_serial_port *port); |
| 183 | +static int generic_chars_in_buffer (struct usb_serial_port *port); |
| 184 | +//static void generic_shutdown (struct usb_serial *serial); |
| 185 | + |
| 186 | +#if 1 |
| 187 | +static struct tty_driver serial_tty_driver = { |
| 188 | + .magic = TTY_DRIVER_MAGIC, |
| 189 | + .driver_name = "usb-serial", |
| 190 | +#ifndef CONFIG_DEVFS_FS |
| 191 | + .name = "ttyUSB", |
| 192 | +#else |
| 193 | + .name = "usb/tts/%d", |
| 194 | +#endif |
| 195 | + .major = SERIAL_TTY_MAJOR, |
| 196 | + .minor_start = 0, |
| 197 | + .num = SERIAL_TTY_MINORS, |
| 198 | + .type = TTY_DRIVER_TYPE_SERIAL, |
| 199 | + .subtype = SERIAL_TYPE_NORMAL, |
| 200 | + .flags = TTY_DRIVER_REAL_RAW | TTY_DRIVER_NO_DEVFS, |
| 201 | + |
| 202 | + .refcount = &serial_refcount, |
| 203 | + .table = serial_tty, |
| 204 | + .termios = serial_termios, |
| 205 | + .termios_locked = serial_termios_locked, |
| 206 | + |
| 207 | + .open = serial_open, |
| 208 | + .close = serial_close, |
| 209 | + .write = serial_write, |
| 210 | + .write_room = serial_write_room, |
| 211 | + .ioctl = serial_ioctl, |
| 212 | + .set_termios = serial_set_termios, |
| 213 | + .throttle = serial_throttle, |
| 214 | + .unthrottle = serial_unthrottle, |
| 215 | + .break_ctl = serial_break, |
| 216 | + .chars_in_buffer = serial_chars_in_buffer, |
| 217 | + .read_proc = serial_read_proc, |
| 218 | +}; |
| 219 | +#endif |
| 220 | + |
| 221 | + |
| 222 | +/***************************************************************************** |
| 223 | + * Driver tty interface functions |
| 224 | + *****************************************************************************/ |
| 225 | +static struct usb_serial *get_serial_by_minor (unsigned int minor) |
| 226 | +{ |
| 227 | + return serial_table[minor]; |
| 228 | +} |
| 229 | + |
| 230 | +static int serial_open (struct tty_struct *tty, struct file * filp) |
| 231 | +{ |
| 232 | + struct usb_serial *serial; |
| 233 | + struct usb_serial_port *port; |
| 234 | + unsigned int portNumber; |
| 235 | + int retval = 0; |
| 236 | + |
| 237 | + dbg("%s", __FUNCTION__); |
| 238 | + |
| 239 | + /* initialize the pointer incase something fails */ |
| 240 | + tty->driver_data = NULL; |
| 241 | + |
| 242 | + /* get the serial object associated with this tty pointer */ |
| 243 | + serial = get_serial_by_minor (MINOR(tty->device)); |
| 244 | + |
| 245 | + if (serial_paranoia_check (serial, __FUNCTION__)) |
| 246 | + return -ENODEV; |
| 247 | + |
| 248 | + /* set up our port structure making the tty driver remember our port object, and us it */ |
| 249 | + portNumber = MINOR(tty->device) - serial->minor; |
| 250 | + port = &serial->port[portNumber]; |
| 251 | + tty->driver_data = port; |
| 252 | + |
| 253 | + down (&port->sem); |
| 254 | + port->tty = tty; |
| 255 | + |
| 256 | + /* lock this module before we call it */ |
| 257 | + if (serial->type->owner) |
| 258 | + __MOD_INC_USE_COUNT(serial->type->owner); |
| 259 | + |
| 260 | + ++port->open_count; |
| 261 | + if (port->open_count == 1) { |
| 262 | + /* only call the device specific open if this |
| 263 | + * is the first time the port is opened */ |
| 264 | + if (serial->type->open) |
| 265 | + retval = serial->type->open(port, filp); |
| 266 | + else |
| 267 | + retval = sw_usb_serial_generic_open(port, filp);//@.@ |
| 268 | + } |
| 269 | + |
| 270 | + if (retval) { |
| 271 | + port->open_count = 0; |
| 272 | + if (serial->type->owner) |
| 273 | + __MOD_DEC_USE_COUNT(serial->type->owner); |
| 274 | + } |
| 275 | + |
| 276 | + up (&port->sem); |
| 277 | + return retval; |
| 278 | +} |
| 279 | + |
| 280 | +static void __serial_close(struct usb_serial_port *port, struct file *filp) |
| 281 | +{ |
| 282 | + if (!port->open_count) { |
| 283 | + dbg ("%s - port not opened", __FUNCTION__); |
| 284 | + return; |
| 285 | + } |
| 286 | + |
| 287 | + --port->open_count; |
| 288 | + if (port->open_count <= 0) { |
| 289 | + /* only call the device specific close if this |
| 290 | + * port is being closed by the last owner */ |
| 291 | + if (port->serial->type->close) |
| 292 | + port->serial->type->close(port, filp); |
| 293 | + else |
| 294 | + //generic_close(port, filp); |
| 295 | + sw_usb_serial_generic_close(port, filp); |
| 296 | + port->open_count = 0; |
| 297 | + } |
| 298 | + |
| 299 | + if (port->serial->type->owner) |
| 300 | + __MOD_DEC_USE_COUNT(port->serial->type->owner); |
| 301 | +} |
| 302 | + |
| 303 | +static void serial_close(struct tty_struct *tty, struct file * filp) |
| 304 | +{ |
| 305 | + struct usb_serial_port *port = (struct usb_serial_port *) tty->driver_data; |
| 306 | + struct usb_serial *serial = get_usb_serial (port, __FUNCTION__); |
| 307 | + |
| 308 | + if (!serial) |
| 309 | + return; |
| 310 | + |
| 311 | + down (&port->sem); |
| 312 | + |
| 313 | + dbg("%s - port %d", __FUNCTION__, port->number); |
| 314 | + |
| 315 | + /* if disconnect beat us to the punch here, there's nothing to do */ |
| 316 | + if (tty->driver_data) { |
| 317 | + __serial_close(port, filp); |
| 318 | + } |
| 319 | + |
| 320 | + up (&port->sem); |
| 321 | +} |
| 322 | + |
| 323 | +static int serial_write (struct tty_struct * tty, int from_user, const unsigned char *buf, int count) |
| 324 | +{ |
| 325 | + struct usb_serial_port *port = (struct usb_serial_port *) tty->driver_data; |
| 326 | + struct usb_serial *serial = get_usb_serial (port, __FUNCTION__); |
| 327 | + int retval = -EINVAL; |
| 328 | + |
| 329 | + if (!serial) |
| 330 | + return -ENODEV; |
| 331 | + |
| 332 | + down (&port->sem); |
| 333 | + |
| 334 | + dbg("%s - port %d, %d byte(s)", __FUNCTION__, port->number, count); |
| 335 | + |
| 336 | + if (!port->open_count) { |
| 337 | + dbg("%s - port not opened", __FUNCTION__); |
| 338 | + goto exit; |
| 339 | + } |
| 340 | + |
| 341 | + /* pass on to the driver specific version of this function if it is available */ |
| 342 | + if (serial->type->write) |
| 343 | + retval = serial->type->write(port, from_user, buf, count); |
| 344 | + else |
| 345 | + retval = generic_write(port, from_user, buf, count); |
| 346 | + |
| 347 | +exit: |
| 348 | + up (&port->sem); |
| 349 | + return retval; |
| 350 | +} |
| 351 | + |
| 352 | +static int serial_write_room (struct tty_struct *tty) |
| 353 | +{ |
| 354 | + struct usb_serial_port *port = (struct usb_serial_port *) tty->driver_data; |
| 355 | + struct usb_serial *serial = get_usb_serial (port, __FUNCTION__); |
| 356 | + int retval = -EINVAL; |
| 357 | + |
| 358 | + if (!serial) |
| 359 | + return -ENODEV; |
| 360 | + |
| 361 | + down (&port->sem); |
| 362 | + |
| 363 | + dbg("%s - port %d", __FUNCTION__, port->number); |
| 364 | + |
| 365 | + if (!port->open_count) { |
| 366 | + dbg("%s - port not open", __FUNCTION__); |
| 367 | + goto exit; |
| 368 | + } |
| 369 | + |
| 370 | + /* pass on to the driver specific version of this function if it is available */ |
| 371 | + if (serial->type->write_room) |
| 372 | + retval = serial->type->write_room(port); |
| 373 | + else |
| 374 | + retval = generic_write_room(port); |
| 375 | + |
| 376 | +exit: |
| 377 | + up (&port->sem); |
| 378 | + return retval; |
| 379 | +} |
| 380 | + |
| 381 | +static int serial_chars_in_buffer (struct tty_struct *tty) |
| 382 | +{ |
| 383 | + struct usb_serial_port *port = (struct usb_serial_port *) tty->driver_data; |
| 384 | + struct usb_serial *serial = get_usb_serial (port, __FUNCTION__); |
| 385 | + int retval = -EINVAL; |
| 386 | + |
| 387 | + if (!serial) |
| 388 | + return -ENODEV; |
| 389 | + |
| 390 | + down (&port->sem); |
| 391 | + |
| 392 | + dbg("%s = port %d", __FUNCTION__, port->number); |
| 393 | + |
| 394 | + if (!port->open_count) { |
| 395 | + dbg("%s - port not open", __FUNCTION__); |
| 396 | + goto exit; |
| 397 | + } |
| 398 | + |
| 399 | + /* pass on to the driver specific version of this function if it is available */ |
| 400 | + if (serial->type->chars_in_buffer) |
| 401 | + retval = serial->type->chars_in_buffer(port); |
| 402 | + else |
| 403 | + retval = generic_chars_in_buffer(port); |
| 404 | + |
| 405 | +exit: |
| 406 | + up (&port->sem); |
| 407 | + return retval; |
| 408 | +} |
| 409 | + |
| 410 | +static void serial_throttle (struct tty_struct * tty) |
| 411 | +{ |
| 412 | + struct usb_serial_port *port = (struct usb_serial_port *) tty->driver_data; |
| 413 | + struct usb_serial *serial = get_usb_serial (port, __FUNCTION__); |
| 414 | + |
| 415 | + if (!serial) |
| 416 | + return; |
| 417 | + |
| 418 | + down (&port->sem); |
| 419 | + |
| 420 | + dbg("%s - port %d", __FUNCTION__, port->number); |
| 421 | + |
| 422 | + if (!port->open_count) { |
| 423 | + dbg ("%s - port not open", __FUNCTION__); |
| 424 | + goto exit; |
| 425 | + } |
| 426 | + |
| 427 | + /* pass on to the driver specific version of this function */ |
| 428 | + if (serial->type->throttle) |
| 429 | + serial->type->throttle(port); |
| 430 | + |
| 431 | +exit: |
| 432 | + up (&port->sem); |
| 433 | +} |
| 434 | + |
| 435 | +static void serial_unthrottle (struct tty_struct * tty) |
| 436 | +{ |
| 437 | + struct usb_serial_port *port = (struct usb_serial_port *) tty->driver_data; |
| 438 | + struct usb_serial *serial = get_usb_serial (port, __FUNCTION__); |
| 439 | + |
| 440 | + if (!serial) |
| 441 | + return; |
| 442 | + |
| 443 | + down (&port->sem); |
| 444 | + |
| 445 | + dbg("%s - port %d", __FUNCTION__, port->number); |
| 446 | + |
| 447 | + if (!port->open_count) { |
| 448 | + dbg("%s - port not open", __FUNCTION__); |
| 449 | + goto exit; |
| 450 | + } |
| 451 | + |
| 452 | + /* pass on to the driver specific version of this function */ |
| 453 | + if (serial->type->unthrottle) |
| 454 | + serial->type->unthrottle(port); |
| 455 | + |
| 456 | +exit: |
| 457 | + up (&port->sem); |
| 458 | +} |
| 459 | + |
| 460 | +static int serial_ioctl (struct tty_struct *tty, struct file * file, unsigned int cmd, unsigned long arg) |
| 461 | +{ |
| 462 | + struct usb_serial_port *port = (struct usb_serial_port *) tty->driver_data; |
| 463 | + struct usb_serial *serial = get_usb_serial (port, __FUNCTION__); |
| 464 | + int retval = -ENODEV; |
| 465 | + |
| 466 | + if (!serial) |
| 467 | + return -ENODEV; |
| 468 | + |
| 469 | + down (&port->sem); |
| 470 | + |
| 471 | + dbg("%s - port %d, cmd 0x%.4x", __FUNCTION__, port->number, cmd); |
| 472 | + |
| 473 | + if (!port->open_count) { |
| 474 | + dbg ("%s - port not open", __FUNCTION__); |
| 475 | + goto exit; |
| 476 | + } |
| 477 | + |
| 478 | + /* pass on to the driver specific version of this function if it is available */ |
| 479 | + if (serial->type->ioctl) |
| 480 | + retval = serial->type->ioctl(port, file, cmd, arg); |
| 481 | + else |
| 482 | + retval = -ENOIOCTLCMD; |
| 483 | + |
| 484 | +exit: |
| 485 | + up (&port->sem); |
| 486 | + return retval; |
| 487 | +} |
| 488 | + |
| 489 | +static void serial_set_termios (struct tty_struct *tty, struct termios * old) |
| 490 | +{ |
| 491 | + struct usb_serial_port *port = (struct usb_serial_port *) tty->driver_data; |
| 492 | + struct usb_serial *serial = get_usb_serial (port, __FUNCTION__); |
| 493 | + |
| 494 | + if (!serial) |
| 495 | + return; |
| 496 | + |
| 497 | + down (&port->sem); |
| 498 | + |
| 499 | + dbg("%s - port %d", __FUNCTION__, port->number); |
| 500 | + |
| 501 | + if (!port->open_count) { |
| 502 | + dbg("%s - port not open", __FUNCTION__); |
| 503 | + goto exit; |
| 504 | + } |
| 505 | + |
| 506 | + /* pass on to the driver specific version of this function if it is available */ |
| 507 | + if (serial->type->set_termios) |
| 508 | + serial->type->set_termios(port, old); |
| 509 | + |
| 510 | +exit: |
| 511 | + up (&port->sem); |
| 512 | +} |
| 513 | + |
| 514 | +static void serial_break (struct tty_struct *tty, int break_state) |
| 515 | +{ |
| 516 | + struct usb_serial_port *port = (struct usb_serial_port *) tty->driver_data; |
| 517 | + struct usb_serial *serial = get_usb_serial (port, __FUNCTION__); |
| 518 | + |
| 519 | + if (!serial) |
| 520 | + return; |
| 521 | + |
| 522 | + down (&port->sem); |
| 523 | + |
| 524 | + dbg("%s - port %d", __FUNCTION__, port->number); |
| 525 | + |
| 526 | + if (!port->open_count) { |
| 527 | + dbg("%s - port not open", __FUNCTION__); |
| 528 | + goto exit; |
| 529 | + } |
| 530 | + |
| 531 | + /* pass on to the driver specific version of this function if it is available */ |
| 532 | + if (serial->type->break_ctl) |
| 533 | + serial->type->break_ctl(port, break_state); |
| 534 | + |
| 535 | +exit: |
| 536 | + up (&port->sem); |
| 537 | +} |
| 538 | +#if 0 |
| 539 | +static void serial_shutdown (struct usb_serial *serial) |
| 540 | +{ |
| 541 | + dbg ("%s", __FUNCTION__); |
| 542 | + |
| 543 | + if (serial->type->shutdown) |
| 544 | + serial->type->shutdown(serial); |
| 545 | + else |
| 546 | + generic_shutdown(serial); |
| 547 | +} |
| 548 | +#endif |
| 549 | +static int serial_read_proc (char *page, char **start, off_t off, int count, int *eof, void *data) |
| 550 | +{ |
| 551 | + struct usb_serial *serial; |
| 552 | + int length = 0; |
| 553 | + int i; |
| 554 | + off_t begin = 0; |
| 555 | + char tmp[40]; |
| 556 | + |
| 557 | + dbg("%s", __FUNCTION__); |
| 558 | + length += sprintf (page, "usbserinfo:1.0 driver:%s\n", DRIVER_VERSION); |
| 559 | + for (i = 0; i < SERIAL_TTY_MINORS && length < PAGE_SIZE; ++i) { |
| 560 | + serial = get_serial_by_minor(i); |
| 561 | + if (serial == NULL) |
| 562 | + continue; |
| 563 | + |
| 564 | + length += sprintf (page+length, "%d:", i); |
| 565 | + if (serial->type->owner) |
| 566 | + length += sprintf (page+length, " module:%s", serial->type->owner->name); |
| 567 | + length += sprintf (page+length, " name:\"%s\"", serial->type->name); |
| 568 | + length += sprintf (page+length, " vendor:%04x product:%04x", serial->vendor, serial->product); |
| 569 | + length += sprintf (page+length, " num_ports:%d", serial->num_ports); |
| 570 | + length += sprintf (page+length, " port:%d", i - serial->minor + 1); |
| 571 | + |
| 572 | + usb_make_path(serial->dev, tmp, sizeof(tmp)); |
| 573 | + length += sprintf (page+length, " path:%s", tmp); |
| 574 | + |
| 575 | + length += sprintf (page+length, "\n"); |
| 576 | + if ((length + begin) > (off + count)) |
| 577 | + goto done; |
| 578 | + if ((length + begin) < off) { |
| 579 | + begin += length; |
| 580 | + length = 0; |
| 581 | + } |
| 582 | + } |
| 583 | + *eof = 1; |
| 584 | +done: |
| 585 | + if (off >= (length + begin)) |
| 586 | + return 0; |
| 587 | + *start = page + (off-begin); |
| 588 | + return ((count < begin+length-off) ? count : begin+length-off); |
| 589 | +} |
| 590 | + |
| 591 | + |
| 592 | +/*-----------------------------------------------------------*/ |
| 593 | +static int generic_write (struct usb_serial_port *port, int from_user, const unsigned char *buf, int count) |
| 594 | +{ |
| 595 | + struct usb_serial *serial = port->serial; |
| 596 | + int result; |
| 597 | + |
| 598 | + dbg("%s - port %d", __FUNCTION__, port->number); |
| 599 | + |
| 600 | + if (count == 0) { |
| 601 | + dbg("%s - write request of 0 bytes", __FUNCTION__); |
| 602 | + return (0); |
| 603 | + } |
| 604 | + |
| 605 | + /* only do something if we have a bulk out endpoint */ |
| 606 | + if (serial->num_bulk_out) { |
| 607 | + if (port->write_urb->status == -EINPROGRESS) { |
| 608 | + dbg("%s - already writing", __FUNCTION__); |
| 609 | + return (0); |
| 610 | + } |
| 611 | + |
| 612 | + count = (count > port->bulk_out_size) ? port->bulk_out_size : count; |
| 613 | + |
| 614 | + if (from_user) { |
| 615 | + if (copy_from_user(port->write_urb->transfer_buffer, buf, count)) |
| 616 | + return -EFAULT; |
| 617 | + } |
| 618 | + else { |
| 619 | + memcpy (port->write_urb->transfer_buffer, buf, count); |
| 620 | + } |
| 621 | + |
| 622 | + usb_serial_debug_data (__FILE__, __FUNCTION__, count, port->write_urb->transfer_buffer); |
| 623 | + |
| 624 | + /* set up our urb */ |
| 625 | + usb_fill_bulk_urb (port->write_urb, serial->dev, |
| 626 | + usb_sndbulkpipe (serial->dev, |
| 627 | + port->bulk_out_endpointAddress), |
| 628 | + port->write_urb->transfer_buffer, count, |
| 629 | + ((serial->type->write_bulk_callback) ? |
| 630 | + serial->type->write_bulk_callback : |
| 631 | + generic_write_bulk_callback), port); |
| 632 | + |
| 633 | + /* send the data out the bulk port */ |
| 634 | + result = usb_submit_urb(port->write_urb); |
| 635 | + if (result) |
| 636 | + err("%s - failed submitting write urb, error %d", __FUNCTION__, result); |
| 637 | + else |
| 638 | + result = count; |
| 639 | + |
| 640 | + return result; |
| 641 | + } |
| 642 | + |
| 643 | + /* no bulk out, so return 0 bytes written */ |
| 644 | + return (0); |
| 645 | +} |
| 646 | + |
| 647 | +static int generic_write_room (struct usb_serial_port *port) |
| 648 | +{ |
| 649 | + struct usb_serial *serial = port->serial; |
| 650 | + int room = 0; |
| 651 | + |
| 652 | + dbg("%s - port %d", __FUNCTION__, port->number); |
| 653 | + |
| 654 | + if (serial->num_bulk_out) { |
| 655 | + if (port->write_urb->status != -EINPROGRESS) |
| 656 | + room = port->bulk_out_size; |
| 657 | + } |
| 658 | + |
| 659 | + dbg("%s - returns %d", __FUNCTION__, room); |
| 660 | + return (room); |
| 661 | +} |
| 662 | + |
| 663 | +static int generic_chars_in_buffer (struct usb_serial_port *port) |
| 664 | +{ |
| 665 | + struct usb_serial *serial = port->serial; |
| 666 | + int chars = 0; |
| 667 | + |
| 668 | + dbg("%s - port %d", __FUNCTION__, port->number); |
| 669 | + |
| 670 | + if (serial->num_bulk_out) { |
| 671 | + if (port->write_urb->status == -EINPROGRESS) |
| 672 | + chars = port->write_urb->transfer_buffer_length; |
| 673 | + } |
| 674 | + |
| 675 | + dbg("%s - returns %d", __FUNCTION__, chars); |
| 676 | + return (chars); |
| 677 | +} |
| 678 | +#if 0 |
| 679 | +static void generic_shutdown (struct usb_serial *serial) |
| 680 | +{ |
| 681 | + int i; |
| 682 | + |
| 683 | + dbg("%s", __FUNCTION__); |
| 684 | + |
| 685 | + /* stop reads and writes on all ports */ |
| 686 | + for (i=0; i < serial->num_ports; ++i) { |
| 687 | + generic_cleanup (&serial->port[i]); |
| 688 | + } |
| 689 | +} |
| 690 | +static void generic_cleanup (struct usb_serial_port *port) |
| 691 | +{ |
| 692 | + struct usb_serial *serial = port->serial; |
| 693 | + |
| 694 | + dbg("%s - port %d", __FUNCTION__, port->number); |
| 695 | + |
| 696 | + if (serial->dev) { |
| 697 | + /* shutdown any bulk reads that might be going on */ |
| 698 | + if (serial->num_bulk_out) |
| 699 | + usb_unlink_urb (port->write_urb); |
| 700 | + if (serial->num_bulk_in) |
| 701 | + usb_unlink_urb (port->read_urb); |
| 702 | + } |
| 703 | +} |
| 704 | +#endif |
| 705 | +/*----------------------------------------------------------*/ |
| 706 | +static void generic_write_bulk_callback (struct urb *urb) |
| 707 | +{ |
| 708 | + struct usb_serial_port *port = (struct usb_serial_port *)urb->context; |
| 709 | + struct usb_serial *serial = get_usb_serial (port, __FUNCTION__); |
| 710 | + |
| 711 | + dbg("%s - port %d", __FUNCTION__, port->number); |
| 712 | + |
| 713 | + if (!serial) { |
| 714 | + dbg("%s - bad serial pointer, exiting", __FUNCTION__); |
| 715 | + return; |
| 716 | + } |
| 717 | + |
| 718 | + if (urb->status) { |
| 719 | + dbg("%s - nonzero write bulk status received: %d", __FUNCTION__, urb->status); |
| 720 | + return; |
| 721 | + } |
| 722 | + |
| 723 | + queue_task(&port->tqueue, &tq_immediate); |
| 724 | + mark_bh(IMMEDIATE_BH); |
| 725 | + |
| 726 | + return; |
| 727 | +} |
| 728 | + |
| 729 | +static struct usb_serial *get_free_serial (int num_ports, int *minor) |
| 730 | +{ |
| 731 | + struct usb_serial *serial = NULL; |
| 732 | + int i, j; |
| 733 | + int good_spot; |
| 734 | + |
| 735 | + dbg("%s %d", __FUNCTION__, num_ports); |
| 736 | + |
| 737 | + *minor = 0; |
| 738 | + for (i = 0; i < SERIAL_TTY_MINORS; ++i) { |
| 739 | + if (serial_table[i]) |
| 740 | + continue; |
| 741 | + |
| 742 | + good_spot = 1; |
| 743 | + for (j = 1; j <= num_ports-1; ++j) |
| 744 | + if (serial_table[i+j]) |
| 745 | + good_spot = 0; |
| 746 | + if (good_spot == 0) |
| 747 | + continue; |
| 748 | + |
| 749 | + if (!(serial = kmalloc(sizeof(struct usb_serial), GFP_KERNEL))) { |
| 750 | + err("%s - Out of memory", __FUNCTION__); |
| 751 | + return NULL; |
| 752 | + } |
| 753 | + memset(serial, 0, sizeof(struct usb_serial)); |
| 754 | + serial->magic = USB_SERIAL_MAGIC; |
| 755 | + serial_table[i] = serial; |
| 756 | + *minor = i; |
| 757 | + dbg("%s - minor base = %d", __FUNCTION__, *minor); |
| 758 | + for (i = *minor+1; (i < (*minor + num_ports)) && (i < SERIAL_TTY_MINORS); ++i) |
| 759 | + serial_table[i] = serial; |
| 760 | + return serial; |
| 761 | + } |
| 762 | + return NULL; |
| 763 | +} |
| 764 | + |
| 765 | +static void return_serial (struct usb_serial *serial) |
| 766 | +{ |
| 767 | + int i; |
| 768 | + |
| 769 | + dbg("%s", __FUNCTION__); |
| 770 | + |
| 771 | + if (serial == NULL) |
| 772 | + return; |
| 773 | + |
| 774 | + for (i = 0; i < serial->num_ports; ++i) { |
| 775 | + serial_table[serial->minor + i] = NULL; |
| 776 | + } |
| 777 | + |
| 778 | + return; |
| 779 | +} |
| 780 | + |
| 781 | +static void port_softint(void *private) |
| 782 | +{ |
| 783 | + struct usb_serial_port *port = (struct usb_serial_port *)private; |
| 784 | + struct usb_serial *serial = get_usb_serial (port, __FUNCTION__); |
| 785 | + struct tty_struct *tty; |
| 786 | + |
| 787 | + dbg("%s - port %d", __FUNCTION__, port->number); |
| 788 | + |
| 789 | + if (!serial) |
| 790 | + return; |
| 791 | + |
| 792 | + tty = port->tty; |
| 793 | + if (!tty) |
| 794 | + return; |
| 795 | + |
| 796 | + if ((tty->flags & (1 << TTY_DO_WRITE_WAKEUP)) && tty->ldisc.write_wakeup) { |
| 797 | + dbg("%s - write wakeup call.", __FUNCTION__); |
| 798 | + (tty->ldisc.write_wakeup)(tty); |
| 799 | + } |
| 800 | + |
| 801 | + wake_up_interruptible(&tty->write_wait); |
| 802 | +} |
| 803 | + |
| 804 | + |
| 805 | +static void * usb_serial_probe(struct usb_device *dev, unsigned int ifnum, |
| 806 | + const struct usb_device_id *id) |
| 807 | +{ |
| 808 | + struct usb_serial *serial = NULL; |
| 809 | + struct usb_serial_port *port; |
| 810 | + struct usb_interface *interface; |
| 811 | + struct usb_interface_descriptor *iface_desc; |
| 812 | + struct usb_endpoint_descriptor *endpoint; |
| 813 | + struct usb_endpoint_descriptor *interrupt_in_endpoint[MAX_NUM_PORTS]; |
| 814 | + struct usb_endpoint_descriptor *bulk_in_endpoint[MAX_NUM_PORTS]; |
| 815 | + struct usb_endpoint_descriptor *bulk_out_endpoint[MAX_NUM_PORTS]; |
| 816 | + struct usb_serial_device_type *type = NULL; |
| 817 | + struct list_head *tmp; |
| 818 | + int found; |
| 819 | + int minor; |
| 820 | + int buffer_size; |
| 821 | + int i; |
| 822 | + int num_interrupt_in = 0; |
| 823 | + int num_bulk_in = 0; |
| 824 | + int num_bulk_out = 0; |
| 825 | + int num_ports; |
| 826 | + int max_endpoints; |
| 827 | + const struct usb_device_id *id_pattern = NULL; |
| 828 | + |
| 829 | + /* loop through our list of known serial converters, and see if this |
| 830 | + device matches. */ |
| 831 | + found = 0; |
| 832 | + interface = &dev->actconfig->interface[ifnum]; |
| 833 | + list_for_each (tmp, &usb_serial_driver_list) { |
| 834 | + type = list_entry(tmp, struct usb_serial_device_type, driver_list); |
| 835 | + id_pattern = usb_match_id(dev, interface, type->id_table); |
| 836 | + if (id_pattern != NULL) { |
| 837 | + dbg("descriptor matches"); |
| 838 | + found = 1; |
| 839 | + break; |
| 840 | + } |
| 841 | + } |
| 842 | + if (!found) { |
| 843 | + /* no match */ |
| 844 | + dbg("none matched"); |
| 845 | + return(NULL); |
| 846 | + } |
| 847 | + /* descriptor matches, let's find the endpoints needed */ |
| 848 | + /* check out the endpoints */ |
| 849 | + iface_desc = &interface->altsetting[0]; |
| 850 | + for (i = 0; i < iface_desc->bNumEndpoints; ++i) { |
| 851 | + endpoint = &iface_desc->endpoint[i]; |
| 852 | + |
| 853 | + if ((endpoint->bEndpointAddress & 0x80) && |
| 854 | + ((endpoint->bmAttributes & 3) == 0x02)) { |
| 855 | + /* we found a bulk in endpoint */ |
| 856 | + dbg("found bulk in"); |
| 857 | + bulk_in_endpoint[num_bulk_in] = endpoint; |
| 858 | + ++num_bulk_in; |
| 859 | + } |
| 860 | + |
| 861 | + if (((endpoint->bEndpointAddress & 0x80) == 0x00) && |
| 862 | + ((endpoint->bmAttributes & 3) == 0x02)) { |
| 863 | + /* we found a bulk out endpoint */ |
| 864 | + dbg("found bulk out"); |
| 865 | + bulk_out_endpoint[num_bulk_out] = endpoint; |
| 866 | + ++num_bulk_out; |
| 867 | + } |
| 868 | + |
| 869 | + if ((endpoint->bEndpointAddress & 0x80) && |
| 870 | + ((endpoint->bmAttributes & 3) == 0x03)) { |
| 871 | + /* we found a interrupt in endpoint */ |
| 872 | + dbg("found interrupt in"); |
| 873 | + interrupt_in_endpoint[num_interrupt_in] = endpoint; |
| 874 | + ++num_interrupt_in; |
| 875 | + } |
| 876 | + } |
| 877 | + |
| 878 | +#if defined(CONFIG_USB_SERIAL_PL2303) || defined(CONFIG_USB_SERIAL_PL2303_MODULE) |
| 879 | + /* BEGIN HORRIBLE HACK FOR PL2303 */ |
| 880 | + /* this is needed due to the looney way its endpoints are set up */ |
| 881 | + if (((dev->descriptor.idVendor == PL2303_VENDOR_ID) && |
| 882 | + (dev->descriptor.idProduct == PL2303_PRODUCT_ID)) || |
| 883 | + ((dev->descriptor.idVendor == ATEN_VENDOR_ID) && |
| 884 | + (dev->descriptor.idProduct == ATEN_PRODUCT_ID))) { |
| 885 | + if (ifnum == 1) { |
| 886 | + /* check out the endpoints of the other interface*/ |
| 887 | + interface = &dev->actconfig->interface[ifnum ^ 1]; |
| 888 | + iface_desc = &interface->altsetting[0]; |
| 889 | + for (i = 0; i < iface_desc->bNumEndpoints; ++i) { |
| 890 | + endpoint = &iface_desc->endpoint[i]; |
| 891 | + if ((endpoint->bEndpointAddress & 0x80) && |
| 892 | + ((endpoint->bmAttributes & 3) == 0x03)) { |
| 893 | + /* we found a interrupt in endpoint */ |
| 894 | + dbg("found interrupt in for Prolific device on separate interface"); |
| 895 | + interrupt_in_endpoint[num_interrupt_in] = endpoint; |
| 896 | + ++num_interrupt_in; |
| 897 | + } |
| 898 | + } |
| 899 | + } |
| 900 | + |
| 901 | + /* Now make sure the PL-2303 is configured correctly. |
| 902 | + * If not, give up now and hope this hack will work |
| 903 | + * properly during a later invocation of usb_serial_probe |
| 904 | + */ |
| 905 | + if (num_bulk_in == 0 || num_bulk_out == 0) { |
| 906 | + info("PL-2303 hack: descriptors matched but endpoints did not"); |
| 907 | + return NULL; |
| 908 | + } |
| 909 | + } |
| 910 | + /* END HORRIBLE HACK FOR PL2303 */ |
| 911 | +#endif |
| 912 | + |
| 913 | + /* found all that we need */ |
| 914 | + info("%s converter detected", type->name); |
| 915 | + |
| 916 | +#ifdef CONFIG_USB_SERIAL_SIERRAWIRELESS |
| 917 | + if (type == &sierra_driver) { |
| 918 | + num_ports = num_bulk_out; |
| 919 | + if (num_ports == 0) { |
| 920 | + err("Sierra 3G device with no bulk out, not allowed."); |
| 921 | + return NULL; |
| 922 | + } |
| 923 | + } else |
| 924 | +#endif |
| 925 | + num_ports = type->num_ports; |
| 926 | + |
| 927 | + serial = get_free_serial (num_ports, &minor); |
| 928 | + if (serial == NULL) { |
| 929 | + err("No more free serial devices"); |
| 930 | + return NULL; |
| 931 | + } |
| 932 | + |
| 933 | + serial->dev = dev; |
| 934 | + serial->type = type; |
| 935 | + serial->interface = interface; |
| 936 | + serial->minor = minor; |
| 937 | + serial->num_ports = num_ports; |
| 938 | + serial->num_bulk_in = num_bulk_in; |
| 939 | + serial->num_bulk_out = num_bulk_out; |
| 940 | + serial->num_interrupt_in = num_interrupt_in; |
| 941 | + serial->vendor = dev->descriptor.idVendor; |
| 942 | + serial->product = dev->descriptor.idProduct; |
| 943 | + |
| 944 | + /* set up the endpoint information */ |
| 945 | + for (i = 0; i < num_bulk_in; ++i) { |
| 946 | + endpoint = bulk_in_endpoint[i]; |
| 947 | + port = &serial->port[i]; |
| 948 | + port->read_urb = usb_alloc_urb (0); |
| 949 | + if (!port->read_urb) { |
| 950 | + err("No free urbs available"); |
| 951 | + goto probe_error; |
| 952 | + } |
| 953 | +//Amin marked buffer_size = endpoint->wMaxPacketSize; |
| 954 | +// ===> 20060310 Amin modify for improve EVDO and HSDPA Card |
| 955 | + buffer_size = 2048; |
| 956 | + printk("KERNEL DEBUG => USBSERIAL.O buffer_size = 2048\n"); |
| 957 | +// <=== 20060310 Amin modify for improve EVDO and HSDPA Card |
| 958 | + port->bulk_in_endpointAddress = endpoint->bEndpointAddress; |
| 959 | + port->bulk_in_buffer = kmalloc (buffer_size, GFP_KERNEL); |
| 960 | + if (!port->bulk_in_buffer) { |
| 961 | + err("Couldn't allocate bulk_in_buffer"); |
| 962 | + goto probe_error; |
| 963 | + } |
| 964 | + usb_fill_bulk_urb (port->read_urb, dev, |
| 965 | + usb_rcvbulkpipe (dev, |
| 966 | + endpoint->bEndpointAddress), |
| 967 | + port->bulk_in_buffer, buffer_size, |
| 968 | + ((serial->type->read_bulk_callback) ? |
| 969 | + serial->type->read_bulk_callback : |
| 970 | + sw_usb_serial_generic_read_bulk_callback), |
| 971 | + port); |
| 972 | + } |
| 973 | + |
| 974 | + for (i = 0; i < num_bulk_out; ++i) { |
| 975 | + endpoint = bulk_out_endpoint[i]; |
| 976 | + port = &serial->port[i]; |
| 977 | + port->write_urb = usb_alloc_urb(0); |
| 978 | + if (!port->write_urb) { |
| 979 | + err("No free urbs available"); |
| 980 | + goto probe_error; |
| 981 | + } |
| 982 | + buffer_size = endpoint->wMaxPacketSize; |
| 983 | + port->bulk_out_size = buffer_size; |
| 984 | + port->bulk_out_endpointAddress = endpoint->bEndpointAddress; |
| 985 | + port->bulk_out_buffer = kmalloc (buffer_size, GFP_KERNEL); |
| 986 | + if (!port->bulk_out_buffer) { |
| 987 | + err("Couldn't allocate bulk_out_buffer"); |
| 988 | + goto probe_error; |
| 989 | + } |
| 990 | + usb_fill_bulk_urb (port->write_urb, dev, |
| 991 | + usb_sndbulkpipe (dev, |
| 992 | + endpoint->bEndpointAddress), |
| 993 | + port->bulk_out_buffer, buffer_size, |
| 994 | + ((serial->type->write_bulk_callback) ? |
| 995 | + serial->type->write_bulk_callback : |
| 996 | + generic_write_bulk_callback), |
| 997 | + port); |
| 998 | + } |
| 999 | + |
| 1000 | + for (i = 0; i < num_interrupt_in; ++i) { |
| 1001 | + endpoint = interrupt_in_endpoint[i]; |
| 1002 | + port = &serial->port[i]; |
| 1003 | + port->interrupt_in_urb = usb_alloc_urb(0); |
| 1004 | + if (!port->interrupt_in_urb) { |
| 1005 | + err("No free urbs available"); |
| 1006 | + goto probe_error; |
| 1007 | + } |
| 1008 | + buffer_size = endpoint->wMaxPacketSize; |
| 1009 | + port->interrupt_in_endpointAddress = endpoint->bEndpointAddress; |
| 1010 | + port->interrupt_in_buffer = kmalloc (buffer_size, GFP_KERNEL); |
| 1011 | + if (!port->interrupt_in_buffer) { |
| 1012 | + err("Couldn't allocate interrupt_in_buffer"); |
| 1013 | + goto probe_error; |
| 1014 | + } |
| 1015 | + usb_fill_int_urb (port->interrupt_in_urb, dev, |
| 1016 | + usb_rcvintpipe (dev, |
| 1017 | + endpoint->bEndpointAddress), |
| 1018 | + port->interrupt_in_buffer, buffer_size, |
| 1019 | + serial->type->read_int_callback, port, |
| 1020 | + endpoint->bInterval); |
| 1021 | + } |
| 1022 | + |
| 1023 | + /* initialize some parts of the port structures */ |
| 1024 | + /* we don't use num_ports here cauz some devices have more endpoint pairs than ports */ |
| 1025 | + max_endpoints = max(num_bulk_in, num_bulk_out); |
| 1026 | + max_endpoints = max(max_endpoints, num_interrupt_in); |
| 1027 | + max_endpoints = max(max_endpoints, (int)serial->num_ports); |
| 1028 | + dbg("%s - setting up %d port structures for this device", __FUNCTION__, max_endpoints); |
| 1029 | + for (i = 0; i < max_endpoints; ++i) { |
| 1030 | + port = &serial->port[i]; |
| 1031 | + port->number = i + serial->minor; |
| 1032 | + port->serial = serial; |
| 1033 | + port->magic = USB_SERIAL_PORT_MAGIC; |
| 1034 | + port->tqueue.routine = port_softint; |
| 1035 | + port->tqueue.data = port; |
| 1036 | + init_MUTEX (&port->sem); |
| 1037 | + } |
| 1038 | + |
| 1039 | + /* if this device type has a startup function, call it */ |
| 1040 | + if (type->startup) { |
| 1041 | + i = type->startup (serial); |
| 1042 | + if (i < 0) |
| 1043 | + goto probe_error; |
| 1044 | + if (i > 0) |
| 1045 | + return serial; |
| 1046 | + } |
| 1047 | + |
| 1048 | + /* initialize the devfs nodes for this device and let the user know what ports we are bound to */ |
| 1049 | + for (i = 0; i < serial->num_ports; ++i) { |
| 1050 | + tty_register_devfs (&serial_tty_driver, 0, serial->port[i].number); |
| 1051 | + info("%s converter now attached to ttyUSB%d (or usb/tts/%d for devfs)", |
| 1052 | + type->name, serial->port[i].number, serial->port[i].number); |
| 1053 | + } |
| 1054 | + |
| 1055 | + return serial; /* success */ |
| 1056 | + |
| 1057 | + |
| 1058 | +probe_error: |
| 1059 | + for (i = 0; i < num_bulk_in; ++i) { |
| 1060 | + port = &serial->port[i]; |
| 1061 | + if (port->read_urb) |
| 1062 | + usb_free_urb (port->read_urb); |
| 1063 | + if (port->bulk_in_buffer) |
| 1064 | + kfree (port->bulk_in_buffer); |
| 1065 | + } |
| 1066 | + for (i = 0; i < num_bulk_out; ++i) { |
| 1067 | + port = &serial->port[i]; |
| 1068 | + if (port->write_urb) |
| 1069 | + usb_free_urb (port->write_urb); |
| 1070 | + if (port->bulk_out_buffer) |
| 1071 | + kfree (port->bulk_out_buffer); |
| 1072 | + } |
| 1073 | + for (i = 0; i < num_interrupt_in; ++i) { |
| 1074 | + port = &serial->port[i]; |
| 1075 | + if (port->interrupt_in_urb) |
| 1076 | + usb_free_urb (port->interrupt_in_urb); |
| 1077 | + if (port->interrupt_in_buffer) |
| 1078 | + kfree (port->interrupt_in_buffer); |
| 1079 | + } |
| 1080 | + |
| 1081 | + /* return the minor range that this device had */ |
| 1082 | + return_serial (serial); |
| 1083 | + |
| 1084 | + /* free up any memory that we allocated */ |
| 1085 | + kfree (serial); |
| 1086 | + return NULL; |
| 1087 | +} |
| 1088 | + |
| 1089 | +static void usb_serial_disconnect(struct usb_device *dev, void *ptr) |
| 1090 | +{ |
| 1091 | + struct usb_serial *serial = (struct usb_serial *) ptr; |
| 1092 | + struct usb_serial_port *port; |
| 1093 | + int i; |
| 1094 | + |
| 1095 | + dbg ("%s", __FUNCTION__); |
| 1096 | + if (serial) { |
| 1097 | + /* fail all future close/read/write/ioctl/etc calls */ |
| 1098 | + for (i = 0; i < serial->num_ports; ++i) { |
| 1099 | + port = &serial->port[i]; |
| 1100 | + down (&port->sem); |
| 1101 | + if (port->tty != NULL) { |
| 1102 | + while (port->open_count > 0) { |
| 1103 | + //__serial_close(port, NULL); |
| 1104 | + sw_usb_serial_generic_close(port,NULL); |
| 1105 | + } |
| 1106 | + port->tty->driver_data = NULL; |
| 1107 | + } |
| 1108 | + up (&port->sem); |
| 1109 | + } |
| 1110 | + |
| 1111 | + serial->dev = NULL; |
| 1112 | + //serial_shutdown (serial); |
| 1113 | + sw_usb_serial_generic_shutdown(serial); |
| 1114 | + |
| 1115 | + for (i = 0; i < serial->num_ports; ++i) |
| 1116 | + serial->port[i].open_count = 0; |
| 1117 | + |
| 1118 | + for (i = 0; i < serial->num_bulk_in; ++i) { |
| 1119 | + port = &serial->port[i]; |
| 1120 | + if (port->read_urb) { |
| 1121 | + usb_unlink_urb (port->read_urb); |
| 1122 | + usb_free_urb (port->read_urb); |
| 1123 | + } |
| 1124 | + if (port->bulk_in_buffer) |
| 1125 | + kfree (port->bulk_in_buffer); |
| 1126 | + } |
| 1127 | + for (i = 0; i < serial->num_bulk_out; ++i) { |
| 1128 | + port = &serial->port[i]; |
| 1129 | + if (port->write_urb) { |
| 1130 | + usb_unlink_urb (port->write_urb); |
| 1131 | + usb_free_urb (port->write_urb); |
| 1132 | + } |
| 1133 | + if (port->bulk_out_buffer) |
| 1134 | + kfree (port->bulk_out_buffer); |
| 1135 | + } |
| 1136 | + for (i = 0; i < serial->num_interrupt_in; ++i) { |
| 1137 | + port = &serial->port[i]; |
| 1138 | + if (port->interrupt_in_urb) { |
| 1139 | + usb_unlink_urb (port->interrupt_in_urb); |
| 1140 | + usb_free_urb (port->interrupt_in_urb); |
| 1141 | + } |
| 1142 | + if (port->interrupt_in_buffer) |
| 1143 | + kfree (port->interrupt_in_buffer); |
| 1144 | + } |
| 1145 | + |
| 1146 | + for (i = 0; i < serial->num_ports; ++i) { |
| 1147 | + tty_unregister_devfs (&serial_tty_driver, serial->port[i].number); |
| 1148 | + info("%s converter now disconnected from ttyUSB%d", serial->type->name, serial->port[i].number); |
| 1149 | + } |
| 1150 | + |
| 1151 | + /* return the minor range that this device had */ |
| 1152 | + return_serial (serial); |
| 1153 | + |
| 1154 | + /* free up any memory that we allocated */ |
| 1155 | + kfree (serial); |
| 1156 | + |
| 1157 | + } else { |
| 1158 | + info("device disconnected"); |
| 1159 | + } |
| 1160 | + |
| 1161 | +} |
| 1162 | + |
| 1163 | +#if 0 |
| 1164 | +static int sw_attach(struct usb_serial *serial) |
| 1165 | +{ |
| 1166 | + struct usb_device *hdev = serial->dev; |
| 1167 | + int rc; |
| 1168 | + |
| 1169 | + dbg("%s - serial(0x%p)", __FUNCTION__, serial); |
| 1170 | + |
| 1171 | + rc = usb_control_msg( |
| 1172 | + hdev, |
| 1173 | + usb_sndctrlpipe(hdev, 0), |
| 1174 | + USB_VENDER_REQUEST_SET_DEVICE_POWER_STATE, /* bRequest */ |
| 1175 | + USB_TYPE_VENDOR|USB_RECIP_DEVICE, /* bmRequestType */ |
| 1176 | + USB_DEVICE_POWER_STATE_D0, /* wValue */ |
| 1177 | + 0, /* wIndex */ |
| 1178 | + NULL, /* Data */ |
| 1179 | + 0, /* wLength */ |
| 1180 | + 1000); /* Timeout */ |
| 1181 | + |
| 1182 | + err("%s - rc(%d)", __FUNCTION__, rc); |
| 1183 | + return rc; |
| 1184 | +} |
| 1185 | +#endif |
| 1186 | +//void sw_usb_serial_generic_read_bulk_callback (struct urb *urb, struct pt_regs *regs) |
| 1187 | +static void sw_usb_serial_generic_read_bulk_callback (struct urb *urb) |
| 1188 | +{ |
| 1189 | + struct usb_serial_port *port = (struct usb_serial_port *)urb->context; |
| 1190 | + struct usb_serial *serial = port->serial; |
| 1191 | + struct tty_struct *tty; |
| 1192 | + unsigned char *data = urb->transfer_buffer; |
| 1193 | + int result; |
| 1194 | + int i; |
| 1195 | + |
| 1196 | + dbg("%s - port %d", __FUNCTION__, port->number); |
| 1197 | + |
| 1198 | + if (urb->status) { |
| 1199 | + dbg("%s - nonzero read bulk status received: %d", __FUNCTION__, urb->status); |
| 1200 | + return; |
| 1201 | + } |
| 1202 | + |
| 1203 | + //usb_serial_dbg_data(__FILE__, __FUNCTION__, urb->actual_length, data); |
| 1204 | + |
| 1205 | + tty = port->tty; |
| 1206 | + if (tty && urb->actual_length) { |
| 1207 | + #if 0 |
| 1208 | + tty_buffer_request_room(tty, urb->actual_length); |
| 1209 | + tty_insert_flip_string(tty, data, urb->actual_length); |
| 1210 | + tty_flip_buffer_push(tty); |
| 1211 | + #endif |
| 1212 | + #if 1 |
| 1213 | + for (i = 0; i < urb->actual_length ; ++i) { |
| 1214 | + /* if we insert more than TTY_FLIPBUF_SIZE characters, we drop them. */ |
| 1215 | + if(tty->flip.count >= TTY_FLIPBUF_SIZE) { |
| 1216 | + tty_flip_buffer_push(tty); |
| 1217 | + } |
| 1218 | + /* this doesn't actually push the data through unless tty->low_latency is set */ |
| 1219 | + tty_insert_flip_char(tty, data[i], 0); |
| 1220 | + } |
| 1221 | + tty_flip_buffer_push(tty); |
| 1222 | + #endif |
| 1223 | + |
| 1224 | + } |
| 1225 | + else |
| 1226 | + dbg("%s: empty read urb received", __FUNCTION__); |
| 1227 | + |
| 1228 | + /* Continue trying to always read */ |
| 1229 | + usb_fill_bulk_urb (port->read_urb, serial->dev, |
| 1230 | + usb_rcvbulkpipe (serial->dev, |
| 1231 | + port->bulk_in_endpointAddress), |
| 1232 | + port->read_urb->transfer_buffer, |
| 1233 | + port->read_urb->transfer_buffer_length, |
| 1234 | + ((serial->type->read_bulk_callback) ? |
| 1235 | + serial->type->read_bulk_callback : |
| 1236 | + sw_usb_serial_generic_read_bulk_callback), port); |
| 1237 | + result = usb_submit_urb(port->read_urb); |
| 1238 | + //result = usb_submit_urb(port->read_urb, GFP_ATOMIC); //for kernel 2.6 |
| 1239 | + if (result) |
| 1240 | + dbg("%s - failed resubmitting read urb, error %d\n", __FUNCTION__, result); |
| 1241 | +} |
| 1242 | +#if 1 |
| 1243 | +static int generic_open (struct usb_serial_port *port, struct file *filp) |
| 1244 | +{ |
| 1245 | + struct usb_serial *serial = port->serial; |
| 1246 | + int result = 0; |
| 1247 | + |
| 1248 | + dbg("%s - port %d", __FUNCTION__, port->number); |
| 1249 | + |
| 1250 | + /* force low_latency on so that our tty_push actually forces the data through, |
| 1251 | + otherwise it is scheduled, and with high data rates (like with OHCI) data |
| 1252 | + can get lost. */ |
| 1253 | + if (port->tty) |
| 1254 | + port->tty->low_latency = 1; |
| 1255 | + |
| 1256 | + /* if we have a bulk interrupt, start reading from it */ |
| 1257 | + if (serial->num_bulk_in) { |
| 1258 | + /* Start reading from the device */ |
| 1259 | + usb_fill_bulk_urb (port->read_urb, serial->dev, |
| 1260 | + usb_rcvbulkpipe(serial->dev, port->bulk_in_endpointAddress), |
| 1261 | + port->read_urb->transfer_buffer, |
| 1262 | + port->read_urb->transfer_buffer_length, |
| 1263 | + ((serial->type->read_bulk_callback) ? |
| 1264 | + serial->type->read_bulk_callback : |
| 1265 | + sw_usb_serial_generic_read_bulk_callback), |
| 1266 | + port); |
| 1267 | + result = usb_submit_urb(port->read_urb); //, GFP_KERNEL); |
| 1268 | + if (result) |
| 1269 | + //dev_err(&port->dev, "%s - failed resubmitting read urb, error %d\n", __FUNCTION__, result); |
| 1270 | + dbg("%s - failed resubmitting read urb, error %d\n", __FUNCTION__, result); |
| 1271 | + |
| 1272 | + } |
| 1273 | + |
| 1274 | + return result; |
| 1275 | +} |
| 1276 | +#endif |
| 1277 | +int sw_usb_serial_generic_open (struct usb_serial_port *port, struct file *filp) |
| 1278 | +{ |
| 1279 | + int rc; |
| 1280 | + struct usb_serial *serial = port->serial; |
| 1281 | + struct usb_device *hdev = serial->dev; |
| 1282 | + |
| 1283 | + dbg("%s - port %d", __FUNCTION__, port->number); |
| 1284 | + |
| 1285 | + rc = generic_open(port, filp); |
| 1286 | + err("%s - rc(%d)", __FUNCTION__, rc); |
| 1287 | + |
| 1288 | + if(0 == rc) |
| 1289 | + { |
| 1290 | + rc = usb_control_msg( |
| 1291 | + hdev, |
| 1292 | + usb_sndctrlpipe(hdev, 0), |
| 1293 | + SET_CONTROL_LINE_STATE, /* bRequest */ |
| 1294 | + USB_TYPE_CLASS|USB_RECIP_INTERFACE, /* bmRequestType */ |
| 1295 | + ACM_CTRL_DTR|ACM_CTRL_RTS, /* wValue */ |
| 1296 | + 0, /* wIndex */ |
| 1297 | + NULL, /* Data */ |
| 1298 | + 0, /* wLength */ |
| 1299 | + 1000); /* Timeout */ |
| 1300 | + err("%s - usb_control_msg: rc(%d)", __FUNCTION__, rc); |
| 1301 | + } |
| 1302 | + |
| 1303 | + return rc; |
| 1304 | +} |
| 1305 | + |
| 1306 | +static void generic_cleanup (struct usb_serial_port *port) |
| 1307 | +{ |
| 1308 | + struct usb_serial *serial = port->serial; |
| 1309 | + |
| 1310 | + dbg("%s - port %d", __FUNCTION__, port->number); |
| 1311 | + |
| 1312 | + if (serial->dev) { |
| 1313 | + /* shutdown any bulk reads that might be going on */ |
| 1314 | + if (serial->num_bulk_out) |
| 1315 | + usb_unlink_urb(port->write_urb); |
| 1316 | + //usb_kill_urb(port->write_urb); |
| 1317 | + if (serial->num_bulk_in) |
| 1318 | + usb_unlink_urb(port->read_urb); |
| 1319 | + //usb_kill_urb(port->read_urb); |
| 1320 | + } |
| 1321 | +} |
| 1322 | + |
| 1323 | +static void sw_usb_serial_generic_close (struct usb_serial_port *port, struct file * filp) |
| 1324 | +{ |
| 1325 | + int rc; |
| 1326 | + struct usb_serial *serial = port->serial; |
| 1327 | + struct usb_device *hdev = serial->dev; |
| 1328 | + |
| 1329 | + dbg("%s - port %d", __FUNCTION__, port->number); |
| 1330 | + |
| 1331 | + rc = usb_control_msg( |
| 1332 | + hdev, |
| 1333 | + usb_sndctrlpipe(hdev, 0), |
| 1334 | + SET_CONTROL_LINE_STATE, /* bRequest */ |
| 1335 | + USB_TYPE_CLASS|USB_RECIP_INTERFACE, /* bmRequestType */ |
| 1336 | + 0, /* wValue */ |
| 1337 | + 0, /* wIndex */ |
| 1338 | + NULL, /* Data */ |
| 1339 | + 0, /* wLength */ |
| 1340 | + 1000); /* Timeout */ |
| 1341 | + err("%s - rc(%d)", __FUNCTION__, rc); |
| 1342 | + |
| 1343 | + generic_cleanup (port); |
| 1344 | +} |
| 1345 | + |
| 1346 | +static void sw_usb_serial_generic_shutdown(struct usb_serial *serial) |
| 1347 | +{ |
| 1348 | + int i, rc; |
| 1349 | + struct usb_device *hdev = serial->dev; |
| 1350 | + |
| 1351 | + dbg("%s serial(0x%p)", __FUNCTION__, serial); |
| 1352 | + |
| 1353 | + if(hdev) |
| 1354 | + { |
| 1355 | + rc = usb_control_msg( |
| 1356 | + hdev, |
| 1357 | + usb_sndctrlpipe(hdev, 0), |
| 1358 | + USB_VENDER_REQUEST_SET_DEVICE_POWER_STATE, /* bRequest */ |
| 1359 | + USB_TYPE_VENDOR|USB_RECIP_DEVICE, /* bmRequestType */ |
| 1360 | + USB_DEVICE_POWER_STATE_D3, /* wValue */ |
| 1361 | + 0, /* wIndex */ |
| 1362 | + NULL, /* Data */ |
| 1363 | + 0, /* wLength */ |
| 1364 | + 1000); /* Timeout */ |
| 1365 | + err("%s - rc(%d)", __FUNCTION__, rc); |
| 1366 | + } |
| 1367 | + |
| 1368 | + /* stop reads and writes on all ports */ |
| 1369 | + for (i=0; i < serial->num_ports; ++i) { |
| 1370 | + generic_cleanup(&serial->port[i]); |
| 1371 | + } |
| 1372 | +} |
| 1373 | +int usb_serial_register(struct usb_serial_device_type *new_device) |
| 1374 | +{ |
| 1375 | + /* Add this device to our list of devices */ |
| 1376 | + list_add(&new_device->driver_list, &usb_serial_driver_list); |
| 1377 | + |
| 1378 | + info ("USB Serial support registered for %s", new_device->name); |
| 1379 | + |
| 1380 | + usb_scan_devices(); |
| 1381 | + |
| 1382 | + return 0; |
| 1383 | +} |
| 1384 | + |
| 1385 | + |
| 1386 | +void usb_serial_deregister(struct usb_serial_device_type *device) |
| 1387 | +{ |
| 1388 | + struct usb_serial *serial; |
| 1389 | + int i; |
| 1390 | + |
| 1391 | + info("USB Serial deregistering driver %s", device->name); |
| 1392 | + |
| 1393 | + /* clear out the serial_table if the device is attached to a port */ |
| 1394 | + for(i = 0; i < SERIAL_TTY_MINORS; ++i) { |
| 1395 | + serial = serial_table[i]; |
| 1396 | + if ((serial != NULL) && (serial->type == device)) { |
| 1397 | + usb_driver_release_interface (&sierra_driver, serial->interface); |
| 1398 | + usb_serial_disconnect (NULL, serial); |
| 1399 | + } |
| 1400 | + } |
| 1401 | + |
| 1402 | + list_del(&device->driver_list); |
| 1403 | +} |
| 1404 | + |
| 1405 | +static int __init sierra_init(void) |
| 1406 | +{ |
| 1407 | + int retval; |
| 1408 | + int i; |
| 1409 | + |
| 1410 | + /* Initalize our global data */ |
| 1411 | + for (i = 0; i < SERIAL_TTY_MINORS; ++i) { |
| 1412 | + serial_table[i] = NULL; |
| 1413 | + } |
| 1414 | + |
| 1415 | + /* register the tty driver */ |
| 1416 | + serial_tty_driver.init_termios = tty_std_termios; |
| 1417 | + serial_tty_driver.init_termios.c_cflag = B9600 | CS8 | CREAD | HUPCL | CLOCAL; |
| 1418 | + if (tty_register_driver (&serial_tty_driver)) { |
| 1419 | + err("%s - failed to register tty driver", __FUNCTION__); |
| 1420 | + return -1; |
| 1421 | + } |
| 1422 | + |
| 1423 | + retval = usb_serial_register(&sierra_device); |
| 1424 | + if (retval) |
| 1425 | + { |
| 1426 | + tty_unregister_driver(&serial_tty_driver); |
| 1427 | + printk("%s return usb_serial_register. retval=[%d].\n",__FUNCTION__, retval); |
| 1428 | + return retval; |
| 1429 | + } |
| 1430 | + retval = usb_register(&sierra_driver); |
| 1431 | + if (retval){ |
| 1432 | + usb_serial_deregister(&sierra_device); |
| 1433 | + tty_unregister_driver(&serial_tty_driver); |
| 1434 | + err("usb_register failed for the Sierra 3G USB-Serial driver. Error number %d\n", retval); |
| 1435 | + return -1; |
| 1436 | + } |
| 1437 | + |
| 1438 | + return retval; |
| 1439 | +} |
| 1440 | + |
| 1441 | +static void __exit sierra_exit(void) |
| 1442 | +{ |
| 1443 | + usb_deregister(&sierra_driver); |
| 1444 | + usb_serial_deregister(&sierra_device); |
| 1445 | +} |
| 1446 | + |
| 1447 | +module_init(sierra_init); |
| 1448 | +module_exit(sierra_exit); |
| 1449 | +MODULE_LICENSE("GPL"); |
| 1450 | --- /dev/null |
| 1451 | +++ b/drivers/usb/serial/sierra.h |
| 1452 | @@ -0,0 +1,32 @@ |
| 1453 | +/* |
| 1454 | + * Sierra Wireless CDMA Wireless Serial USB drive |
| 1455 | + * |
| 1456 | + * Current Copy modified by: Kevin Lloyd <linux@sierrawireless.com> |
| 1457 | + * Original Copy written by: 2005 Greg Kroah-Hartman <gregkh <at> suse.de> |
| 1458 | + * |
| 1459 | + * |
| 1460 | + * This program is free software; you can redistribute it and/or |
| 1461 | + * modify it under the terms of the GNU General Public License version |
| 1462 | + * 2 as published by the Free Software Foundation. |
| 1463 | + * |
| 1464 | + * Version history: |
| 1465 | + Version 1.03 (Lloyd): |
| 1466 | + Included support for DTR control and enhanced buffering (should help |
| 1467 | + speed). |
| 1468 | + */ |
| 1469 | + |
| 1470 | +#define USB_VENDER_REQUEST_SET_DEVICE_POWER_STATE 0 |
| 1471 | + |
| 1472 | +#define USB_DEVICE_POWER_STATE_D0 0x0000 |
| 1473 | +#define USB_DEVICE_POWER_STATE_D1 0x0001 |
| 1474 | +#define USB_DEVICE_POWER_STATE_D2 0x0002 |
| 1475 | +#define USB_DEVICE_POWER_STATE_D3 0x0003 |
| 1476 | + |
| 1477 | +#define SET_CONTROL_LINE_STATE 0x22 |
| 1478 | +/* |
| 1479 | + * Output control lines. |
| 1480 | + */ |
| 1481 | + |
| 1482 | +#define ACM_CTRL_DTR 0x01 |
| 1483 | +#define ACM_CTRL_RTS 0x02 |
| 1484 | + |
| 1485 | |
