| Start/ | End/ | |||
| True | False | - | Line | Source |
| 1 | /* | |||
| 2 | * USB Empeg empeg-car player driver | |||
| 3 | * | |||
| 4 | * Copyright (C) 2000, 2001 | |||
| 5 | * Gary Brubaker (xavyer@ix.netcom.com) | |||
| 6 | * | |||
| 7 | * Copyright (C) 1999 - 2001 | |||
| 8 | * Greg Kroah-Hartman (greg@kroah.com) | |||
| 9 | * | |||
| 10 | * This program is free software; you can redistribute it and/or modify | |||
| 11 | * it under the terms of the GNU General Public License, as published by | |||
| 12 | * the Free Software Foundation, version 2. | |||
| 13 | * | |||
| 14 | * See Documentation/usb/usb-serial.txt for more information on using this driver | |||
| 15 | * | |||
| 16 | * (07/16/2001) gb | |||
| 17 | * remove unused code in empeg_close() (thanks to Oliver Neukum for pointing this | |||
| 18 | * out) and rewrote empeg_set_termios(). | |||
| 19 | * | |||
| 20 | * (05/30/2001) gkh | |||
| 21 | * switched from using spinlock to a semaphore, which fixes lots of problems. | |||
| 22 | * | |||
| 23 | * (04/08/2001) gb | |||
| 24 | * Identify version on module load. | |||
| 25 | * | |||
| 26 | * (01/22/2001) gb | |||
| 27 | * Added write_room() and chars_in_buffer() support. | |||
| 28 | * | |||
| 29 | * (12/21/2000) gb | |||
| 30 | * Moved termio stuff inside the port->active check. | |||
| 31 | * Moved MOD_DEC_USE_COUNT to end of empeg_close(). | |||
| 32 | * | |||
| 33 | * (12/03/2000) gb | |||
| 34 | * Added port->tty->ldisc.set_termios(port->tty, NULL) to empeg_open() | |||
| 35 | * This notifies the tty driver that the termios have changed. | |||
| 36 | * | |||
| 37 | * (11/13/2000) gb | |||
| 38 | * Moved tty->low_latency = 1 from empeg_read_bulk_callback() to empeg_open() | |||
| 39 | * (It only needs to be set once - Doh!) | |||
| 40 | * | |||
| 41 | * (11/11/2000) gb | |||
| 42 | * Updated to work with id_table structure. | |||
| 43 | * | |||
| 44 | * (11/04/2000) gb | |||
| 45 | * Forked this from visor.c, and hacked it up to work with an | |||
| 46 | * Empeg ltd. empeg-car player. Constructive criticism welcomed. | |||
| 47 | * I would like to say, 'Thank You' to Greg Kroah-Hartman for the | |||
| 48 | * use of his code, and for his guidance, advice and patience. :) | |||
| 49 | * A 'Thank You' is in order for John Ripley of Empeg ltd for his | |||
| 50 | * advice, and patience too. | |||
| 51 | * | |||
| 52 | */ | |||
| 53 | ||||
| 54 | #include <linux/config.h> | |||
| 55 | #include <linux/kernel.h> | |||
| 56 | #include <linux/errno.h> | |||
| 57 | #include <linux/init.h> | |||
| 58 | #include <linux/slab.h> | |||
| 59 | #include <linux/tty.h> | |||
| 60 | #include <linux/tty_driver.h> | |||
| 61 | #include <linux/tty_flip.h> | |||
| 62 | #include <linux/module.h> | |||
| 63 | #include <linux/spinlock.h> | |||
| 64 | #include <asm/uaccess.h> | |||
| 65 | #include <linux/usb.h> | |||
| 66 | #include "usb-serial.h" | |||
| 67 | ||||
| 68 | static int debug; | |||
| 69 | ||||
| 70 | /* | |||
| 71 | * Version Information | |||
| 72 | */ | |||
| 73 | #define DRIVER_VERSION "v1.2" | |||
| 74 | #define DRIVER_AUTHOR "Greg Kroah-Hartman <greg@kroah.com>, Gary Brubaker <xavyer@ix.netcom.com>" | |||
| 75 | #define DRIVER_DESC "USB Empeg Mark I/II Driver" | |||
| 76 | ||||
| 77 | #define EMPEG_VENDOR_ID 0x084f | |||
| 78 | #define EMPEG_PRODUCT_ID 0x0001 | |||
| 79 | ||||
| 80 | /* function prototypes for an empeg-car player */ | |||
| 81 | static int empeg_open (struct usb_serial_port *port, struct file *filp); | |||
| 82 | static void empeg_close (struct usb_serial_port *port, struct file *filp); | |||
| 83 | static int empeg_write (struct usb_serial_port *port, | |||
| 84 | const unsigned char *buf, | |||
| 85 | int count); | |||
| 86 | static int empeg_write_room (struct usb_serial_port *port); | |||
| 87 | static int empeg_chars_in_buffer (struct usb_serial_port *port); | |||
| 88 | static void empeg_throttle (struct usb_serial_port *port); | |||
| 89 | static void empeg_unthrottle (struct usb_serial_port *port); | |||
| 90 | static int empeg_startup (struct usb_serial *serial); | |||
| 91 | static void empeg_shutdown (struct usb_serial *serial); | |||
| 92 | static int empeg_ioctl (struct usb_serial_port *port, | |||
| 93 | struct file * file, | |||
| 94 | unsigned int cmd, | |||
| 95 | unsigned long arg); | |||
| 96 | static void empeg_set_termios (struct usb_serial_port *port, struct termios *old_termios); | |||
| 97 | static void empeg_write_bulk_callback (struct urb *urb, struct pt_regs *regs); | |||
| 98 | static void empeg_read_bulk_callback (struct urb *urb, struct pt_regs *regs); | |||
| 99 | ||||
| 100 | static struct usb_device_id id_table [] = { | |||
| 101 | { USB_DEVICE(EMPEG_VENDOR_ID, EMPEG_PRODUCT_ID) }, | |||
| 102 | { } /* Terminating entry */ | |||
| 103 | }; | |||
| 104 | ||||
| 105 | MODULE_DEVICE_TABLE (usb, id_table); | |||
| 106 | ||||
| 107 | static struct usb_driver empeg_driver = { | |||
| 108 | .name = "empeg", | |||
| 109 | .probe = usb_serial_probe, | |||
| 110 | .disconnect = usb_serial_disconnect, | |||
| 111 | .id_table = id_table, | |||
| 112 | .no_dynamic_id = 1, | |||
| 113 | }; | |||
| 114 | ||||
| 115 | static struct usb_serial_driver empeg_device = { | |||
| 116 | .driver = { | |||
| 117 | .owner = THIS_MODULE, | |||
| 118 | .name = "empeg", | |||
| 119 | }, | |||
| 120 | .id_table = id_table, | |||
| 121 | .num_interrupt_in = 0, | |||
| 122 | .num_bulk_in = 1, | |||
| 123 | .num_bulk_out = 1, | |||
| 124 | .num_ports = 1, | |||
| 125 | .open = empeg_open, | |||
| 126 | .close = empeg_close, | |||
| 127 | .throttle = empeg_throttle, | |||
| 128 | .unthrottle = empeg_unthrottle, | |||
| 129 | .attach = empeg_startup, | |||
| 130 | .shutdown = empeg_shutdown, | |||
| 131 | .ioctl = empeg_ioctl, | |||
| 132 | .set_termios = empeg_set_termios, | |||
| 133 | .write = empeg_write, | |||
| 134 | .write_room = empeg_write_room, | |||
| 135 | .chars_in_buffer = empeg_chars_in_buffer, | |||
| 136 | .write_bulk_callback = empeg_write_bulk_callback, | |||
| 137 | .read_bulk_callback = empeg_read_bulk_callback, | |||
| 138 | }; | |||
| 139 | ||||
| 140 | #define NUM_URBS 16 | |||
| 141 | #define URB_TRANSFER_BUFFER_SIZE 4096 | |||
| 142 | ||||
| 143 | static struct urb *write_urb_pool[NUM_URBS]; | |||
| 144 | static spinlock_t write_urb_pool_lock; | |||
| 145 | static int bytes_in; | |||
| 146 | static int bytes_out; | |||
| 147 | ||||
| 148 | /****************************************************************************** | |||
| 149 | * Empeg specific driver functions | |||
| 150 | ******************************************************************************/ | |||
| 0 | 0 | - | 151 | static int empeg_open (struct usb_serial_port *port, struct file *filp) |
| 152 | { | |||
| 153 | struct usb_serial *serial = port->serial; | |||
| 154 | int result = 0; | |||
| 155 | ||||
| 156 | dbg("%s - port %d", __FUNCTION__, port->number); | |||
| 0 | 0 | - | 156 | if (debug) |
| 0 | 0 | - | 156 | do-while (0) |
| 157 | ||||
| 158 | /* Force default termio settings */ | |||
| 159 | empeg_set_termios (port, NULL) ; | |||
| 160 | ||||
| 161 | bytes_in = 0; | |||
| 162 | bytes_out = 0; | |||
| 163 | ||||
| 164 | /* Start reading from the device */ | |||
| 165 | usb_fill_bulk_urb( | |||
| 166 | port->read_urb, | |||
| 167 | serial->dev, | |||
| 168 | usb_rcvbulkpipe(serial->dev, | |||
| 169 | port->bulk_in_endpointAddress), | |||
| 170 | port->read_urb->transfer_buffer, | |||
| 171 | port->read_urb->transfer_buffer_length, | |||
| 172 | empeg_read_bulk_callback, | |||
| 173 | port); | |||
| 174 | ||||
| 175 | result = usb_submit_urb(port->read_urb, GFP_KERNEL); | |||
| 176 | ||||
| 0 | 0 | - | 177 | if (result) |
| 178 | dev_err(&port->dev, "%s - failed submitting read urb, error %d\n", __FUNCTION__, result); | |||
| 0 | 0 | - | 178 | ternary-?: ( & port -> dev ) -> driver |
| 179 | ||||
| 0 | - | 180 | return result; | |
| 181 | } | |||
| 182 | ||||
| 183 | ||||
| 0 | 0 | - | 184 | static void empeg_close (struct usb_serial_port *port, struct file * filp) |
| 185 | { | |||
| 186 | dbg("%s - port %d", __FUNCTION__, port->number); | |||
| 0 | 0 | - | 186 | if (debug) |
| 0 | 0 | - | 186 | do-while (0) |
| 187 | ||||
| 188 | /* shutdown our bulk read */ | |||
| 189 | usb_kill_urb(port->read_urb); | |||
| 190 | /* Uncomment the following line if you want to see some statistics in your syslog */ | |||
| 191 | /* dev_info (&port->dev, "Bytes In = %d Bytes Out = %d\n", bytes_in, bytes_out); */ | |||
| 192 | } | |||
| 193 | ||||
| 194 | ||||
| 0 | 0 | - | 195 | static int empeg_write (struct usb_serial_port *port, const unsigned char *buf, int count) |
| 196 | { | |||
| 197 | struct usb_serial *serial = port->serial; | |||
| 198 | struct urb *urb; | |||
| 199 | const unsigned char *current_position = buf; | |||
| 200 | unsigned long flags; | |||
| 201 | int status; | |||
| 202 | int i; | |||
| 203 | int bytes_sent = 0; | |||
| 204 | int transfer_size; | |||
| 205 | ||||
| 206 | dbg("%s - port %d", __FUNCTION__, port->number); | |||
| 0 | 0 | - | 206 | if (debug) |
| 0 | 0 | - | 206 | do-while (0) |
| 207 | ||||
| 0 | 0 | - | 208 | while (count > 0) { |
| 209 | ||||
| 210 | /* try to find a free urb in our list of them */ | |||
| 211 | urb = NULL; | |||
| 212 | ||||
| 213 | spin_lock_irqsave (&write_urb_pool_lock, flags); | |||
| 213 | do | |||
| 213 | do | |||
| 0 | 0 | - | 213 | do-while (0) |
| 0 | 0 | - | 213 | do-while (0) |
| 213 | do | |||
| 213 | do | |||
| 0 | 0 | - | 213 | do-while (0) |
| 0 | 0 | - | 213 | do-while (0) |
| 0 | 0 | - | 213 | do-while (0) |
| 214 | ||||
| 0 | 0 | - | 215 | for (i = 0; i < NUM_URBS; ++i) { |
| 0 | 0 | - | 216 | if (write_urb_pool[i]->status != -EINPROGRESS) { |
| 217 | urb = write_urb_pool[i]; | |||
| 0 | - | 218 | break; | |
| 219 | } | |||
| 220 | } | |||
| 221 | ||||
| 222 | spin_unlock_irqrestore (&write_urb_pool_lock, flags); | |||
| 222 | do | |||
| 222 | do | |||
| 0 | 0 | - | 222 | do-while (0) |
| 0 | 0 | - | 222 | do-while (0) |
| 0 | 0 | - | 222 | do-while (0) |
| 223 | ||||
| 0 | 0 | - | 224 | if (urb == NULL) { |
| 225 | dbg("%s - no more free urbs", __FUNCTION__); | |||
| 0 | 0 | - | 225 | if (debug) |
| 0 | 0 | - | 225 | do-while (0) |
| 0 | - | 226 | goto exit; | |
| 227 | } | |||
| 228 | ||||
| 0 | 0 | - | 229 | if (urb->transfer_buffer == NULL) { |
| 230 | urb->transfer_buffer = kmalloc (URB_TRANSFER_BUFFER_SIZE, GFP_ATOMIC); | |||
| 0 | 0 | - | 231 | if (urb->transfer_buffer == NULL) { |
| 232 | dev_err(&port->dev, "%s no more kernel memory...\n", __FUNCTION__); | |||
| 0 | 0 | - | 232 | ternary-?: ( & port -> dev ) -> driver |
| 0 | - | 233 | goto exit; | |
| 234 | } | |||
| 235 | } | |||
| 236 | ||||
| 237 | transfer_size = min (count, URB_TRANSFER_BUFFER_SIZE); | |||
| 238 | ||||
| 239 | memcpy (urb->transfer_buffer, current_position, transfer_size); | |||
| 240 | ||||
| 241 | usb_serial_debug_data(debug, &port->dev, __FUNCTION__, transfer_size, urb->transfer_buffer); | |||
| 242 | ||||
| 243 | /* build up our urb */ | |||
| 244 | usb_fill_bulk_urb ( | |||
| 245 | urb, | |||
| 246 | serial->dev, | |||
| 247 | usb_sndbulkpipe(serial->dev, | |||
| 248 | port->bulk_out_endpointAddress), | |||
| 249 | urb->transfer_buffer, | |||
| 250 | transfer_size, | |||
| 251 | empeg_write_bulk_callback, | |||
| 252 | port); | |||
| 253 | ||||
| 254 | /* send it down the pipe */ | |||
| 255 | status = usb_submit_urb(urb, GFP_ATOMIC); | |||
| 0 | 0 | - | 256 | if (status) { |
| 257 | dev_err(&port->dev, "%s - usb_submit_urb(write bulk) failed with status = %d\n", __FUNCTION__, status); | |||
| 0 | 0 | - | 257 | ternary-?: ( & port -> dev ) -> driver |
| 258 | bytes_sent = status; | |||
| 0 | - | 259 | break; | |
| 260 | } | |||
| 261 | ||||
| 262 | current_position += transfer_size; | |||
| 263 | bytes_sent += transfer_size; | |||
| 264 | count -= transfer_size; | |||
| 265 | bytes_out += transfer_size; | |||
| 266 | ||||
| 267 | } | |||
| 268 | ||||
| 269 | exit: | |||
| 0 | - | 270 | return bytes_sent; | |
| 271 | ||||
| 272 | } | |||
| 273 | ||||
| 274 | ||||
| 0 | 0 | - | 275 | static int empeg_write_room (struct usb_serial_port *port) |
| 276 | { | |||
| 277 | unsigned long flags; | |||
| 278 | int i; | |||
| 279 | int room = 0; | |||
| 280 | ||||
| 281 | dbg("%s - port %d", __FUNCTION__, port->number); | |||
| 0 | 0 | - | 281 | if (debug) |
| 0 | 0 | - | 281 | do-while (0) |
| 282 | ||||
| 283 | spin_lock_irqsave (&write_urb_pool_lock, flags); | |||
| 283 | do | |||
| 283 | do | |||
| 0 | 0 | - | 283 | do-while (0) |
| 0 | 0 | - | 283 | do-while (0) |
| 283 | do | |||
| 283 | do | |||
| 0 | 0 | - | 283 | do-while (0) |
| 0 | 0 | - | 283 | do-while (0) |
| 0 | 0 | - | 283 | do-while (0) |
| 284 | ||||
| 285 | /* tally up the number of bytes available */ | |||
| 0 | 0 | - | 286 | for (i = 0; i < NUM_URBS; ++i) { |
| 0 | 0 | - | 287 | if (write_urb_pool[i]->status != -EINPROGRESS) { |
| 288 | room += URB_TRANSFER_BUFFER_SIZE; | |||
| 289 | } | |||
| 290 | } | |||
| 291 | ||||
| 292 | spin_unlock_irqrestore (&write_urb_pool_lock, flags); | |||
| 292 | do | |||
| 292 | do | |||
| 0 | 0 | - | 292 | do-while (0) |
| 0 | 0 | - | 292 | do-while (0) |
| 0 | 0 | - | 292 | do-while (0) |
| 293 | ||||
| 294 | dbg("%s - returns %d", __FUNCTION__, room); | |||
| 0 | 0 | - | 294 | if (debug) |
| 0 | 0 | - | 294 | do-while (0) |
| 295 | ||||
| 0 | - | 296 | return (room); | |
| 297 | ||||
| 298 | } | |||
| 299 | ||||
| 300 | ||||
| 0 | 0 | - | 301 | static int empeg_chars_in_buffer (struct usb_serial_port *port) |
| 302 | { | |||
| 303 | unsigned long flags; | |||
| 304 | int i; | |||
| 305 | int chars = 0; | |||
| 306 | ||||
| 307 | dbg("%s - port %d", __FUNCTION__, port->number); | |||
| 0 | 0 | - | 307 | if (debug) |
| 0 | 0 | - | 307 | do-while (0) |
| 308 | ||||
| 309 | spin_lock_irqsave (&write_urb_pool_lock, flags); | |||
| 309 | do | |||
| 309 | do | |||
| 0 | 0 | - | 309 | do-while (0) |
| 0 | 0 | - | 309 | do-while (0) |
| 309 | do | |||
| 309 | do | |||
| 0 | 0 | - | 309 | do-while (0) |
| 0 | 0 | - | 309 | do-while (0) |
| 0 | 0 | - | 309 | do-while (0) |
| 310 | ||||
| 311 | /* tally up the number of bytes waiting */ | |||
| 0 | 0 | - | 312 | for (i = 0; i < NUM_URBS; ++i) { |
| 0 | 0 | - | 313 | if (write_urb_pool[i]->status == -EINPROGRESS) { |
| 314 | chars += URB_TRANSFER_BUFFER_SIZE; | |||
| 315 | } | |||
| 316 | } | |||
| 317 | ||||
| 318 | spin_unlock_irqrestore (&write_urb_pool_lock, flags); | |||
| 318 | do | |||
| 318 | do | |||
| 0 | 0 | - | 318 | do-while (0) |
| 0 | 0 | - | 318 | do-while (0) |
| 0 | 0 | - | 318 | do-while (0) |
| 319 | ||||
| 320 | dbg("%s - returns %d", __FUNCTION__, chars); | |||
| 0 | 0 | - | 320 | if (debug) |
| 0 | 0 | - | 320 | do-while (0) |
| 321 | ||||
| 0 | - | 322 | return (chars); | |
| 323 | ||||
| 324 | } | |||
| 325 | ||||
| 326 | ||||
| 0 | 0 | - | 327 | static void empeg_write_bulk_callback (struct urb *urb, struct pt_regs *regs) |
| 328 | { | |||
| 329 | struct usb_serial_port *port = (struct usb_serial_port *)urb->context; | |||
| 330 | ||||
| 331 | dbg("%s - port %d", __FUNCTION__, port->number); | |||
| 0 | 0 | - | 331 | if (debug) |
| 0 | 0 | - | 331 | do-while (0) |
| 332 | ||||
| 0 | 0 | - | 333 | if (urb->status) { |
| 334 | dbg("%s - nonzero write bulk status received: %d", __FUNCTION__, urb->status); | |||
| 0 | 0 | - | 334 | if (debug) |
| 0 | 0 | - | 334 | do-while (0) |
| 0 | - | 335 | return; | |
| 336 | } | |||
| 337 | ||||
| 338 | schedule_work(&port->work); | |||
| 339 | } | |||
| 340 | ||||
| 341 | ||||
| 0 | 0 | - | 342 | static void empeg_read_bulk_callback (struct urb *urb, struct pt_regs *regs) |
| 343 | { | |||
| 344 | struct usb_serial_port *port = (struct usb_serial_port *)urb->context; | |||
| 345 | struct tty_struct *tty; | |||
| 346 | unsigned char *data = urb->transfer_buffer; | |||
| 347 | int result; | |||
| 348 | ||||
| 349 | dbg("%s - port %d", __FUNCTION__, port->number); | |||
| 0 | 0 | - | 349 | if (debug) |
| 0 | 0 | - | 349 | do-while (0) |
| 350 | ||||
| 0 | 0 | - | 351 | if (urb->status) { |
| 352 | dbg("%s - nonzero read bulk status received: %d", __FUNCTION__, urb->status); | |||
| 0 | 0 | - | 352 | if (debug) |
| 0 | 0 | - | 352 | do-while (0) |
| 0 | - | 353 | return; | |
| 354 | } | |||
| 355 | ||||
| 356 | usb_serial_debug_data(debug, &port->dev, __FUNCTION__, urb->actual_length, data); | |||
| 357 | ||||
| 358 | tty = port->tty; | |||
| 359 | ||||
| 0 | 0 | - | 360 | if (urb->actual_length) { |
| 361 | tty_buffer_request_room(tty, urb->actual_length); | |||
| 362 | tty_insert_flip_string(tty, data, urb->actual_length); | |||
| 363 | tty_flip_buffer_push(tty); | |||
| 364 | bytes_in += urb->actual_length; | |||
| 365 | } | |||
| 366 | ||||
| 367 | /* Continue trying to always read */ | |||
| 368 | usb_fill_bulk_urb( | |||
| 369 | port->read_urb, | |||
| 370 | port->serial->dev, | |||
| 371 | usb_rcvbulkpipe(port->serial->dev, | |||
| 372 | port->bulk_in_endpointAddress), | |||
| 373 | port->read_urb->transfer_buffer, | |||
| 374 | port->read_urb->transfer_buffer_length, | |||
| 375 | empeg_read_bulk_callback, | |||
| 376 | port); | |||
| 377 | ||||
| 378 | result = usb_submit_urb(port->read_urb, GFP_ATOMIC); | |||
| 379 | ||||
| 0 | 0 | - | 380 | if (result) |
| 381 | dev_err(&urb->dev->dev, "%s - failed resubmitting read urb, error %d\n", __FUNCTION__, result); | |||
| 0 | 0 | - | 381 | ternary-?: ( & urb -> dev -> dev ) -> driver |
| 382 | ||||
| 0 | - | 383 | return; | |
| 384 | ||||
| 385 | } | |||
| 386 | ||||
| 387 | ||||
| 0 | 0 | - | 388 | static void empeg_throttle (struct usb_serial_port *port) |
| 389 | { | |||
| 390 | dbg("%s - port %d", __FUNCTION__, port->number); | |||
| 0 | 0 | - | 390 | if (debug) |
| 0 | 0 | - | 390 | do-while (0) |
| 391 | usb_kill_urb(port->read_urb); | |||
| 392 | } | |||
| 393 | ||||
| 394 | ||||
| 0 | 0 | - | 395 | static void empeg_unthrottle (struct usb_serial_port *port) |
| 396 | { | |||
| 397 | int result; | |||
| 398 | ||||
| 399 | dbg("%s - port %d", __FUNCTION__, port->number); | |||
| 0 | 0 | - | 399 | if (debug) |
| 0 | 0 | - | 399 | do-while (0) |
| 400 | ||||
| 401 | port->read_urb->dev = port->serial->dev; | |||
| 402 | ||||
| 403 | result = usb_submit_urb(port->read_urb, GFP_ATOMIC); | |||
| 404 | ||||
| 0 | 0 | - | 405 | if (result) |
| 406 | dev_err(&port->dev, "%s - failed submitting read urb, error %d\n", __FUNCTION__, result); | |||
| 0 | 0 | - | 406 | ternary-?: ( & port -> dev ) -> driver |
| 407 | ||||
| 0 | - | 408 | return; | |
| 409 | } | |||
| 410 | ||||
| 411 | ||||
| 0 | 0 | - | 412 | static int empeg_startup (struct usb_serial *serial) |
| 413 | { | |||
| 414 | int r; | |||
| 415 | ||||
| 416 | dbg("%s", __FUNCTION__); | |||
| 0 | 0 | - | 416 | if (debug) |
| 0 | 0 | - | 416 | do-while (0) |
| 417 | ||||
| 0 | 0 | - | 418 | if (serial->dev->actconfig->desc.bConfigurationValue != 1) { |
| 419 | err("active config #%d != 1 ??", | |||
| 420 | serial->dev->actconfig->desc.bConfigurationValue); | |||
| 0 | - | 421 | return -ENODEV; | |
| 422 | } | |||
| 423 | dbg("%s - reset config", __FUNCTION__); | |||
| 0 | 0 | - | 423 | if (debug) |
| 0 | 0 | - | 423 | do-while (0) |
| 424 | r = usb_reset_configuration (serial->dev); | |||
| 425 | ||||
| 426 | /* continue on with initialization */ | |||
| 0 | - | 427 | return r; | |
| 428 | ||||
| 429 | } | |||
| 430 | ||||
| 431 | ||||
| 0 | 0 | - | 432 | static void empeg_shutdown (struct usb_serial *serial) |
| 433 | { | |||
| 434 | dbg ("%s", __FUNCTION__); | |||
| 0 | 0 | - | 434 | if (debug) |
| 0 | 0 | - | 434 | do-while (0) |
| 435 | } | |||
| 436 | ||||
| 437 | ||||
| 0 | 0 | - | 438 | static int empeg_ioctl (struct usb_serial_port *port, struct file * file, unsigned int cmd, unsigned long arg) |
| 439 | { | |||
| 440 | dbg("%s - port %d, cmd 0x%.4x", __FUNCTION__, port->number, cmd); | |||
| 0 | 0 | - | 440 | if (debug) |
| 0 | 0 | - | 440 | do-while (0) |
| 441 | ||||
| 0 | - | 442 | return -ENOIOCTLCMD; | |
| 443 | } | |||
| 444 | ||||
| 445 | ||||
| 0 | 0 | - | 446 | static void empeg_set_termios (struct usb_serial_port *port, struct termios *old_termios) |
| 447 | { | |||
| 448 | ||||
| 449 | dbg("%s - port %d", __FUNCTION__, port->number); | |||
| 0 | 0 | - | 449 | if (debug) |
| 0 | 0 | - | 449 | do-while (0) |
| 450 | ||||
| 0 | 0 | - | 451 | if ((!port->tty) || (!port->tty->termios)) { |
| 0 | ||||