Matthias Urlichs | 58cfe91 | 2005-05-23 17:00:48 -0700 | [diff] [blame] | 1 | /* |
| 2 | Option Card (PCMCIA to) USB to Serial Driver |
| 3 | |
| 4 | Copyright (C) 2005 Matthias Urlichs <smurf@smurf.noris.de> |
| 5 | |
| 6 | This driver is free software; you can redistribute it and/or modify |
| 7 | it under the terms of Version 2 of the GNU General Public License as |
| 8 | published by the Free Software Foundation. |
| 9 | |
| 10 | Portions copied from the Keyspan driver by Hugh Blemings <hugh@blemings.org> |
| 11 | |
| 12 | History: |
| 13 | |
| 14 | 2005-05-19 v0.1 Initial version, based on incomplete docs |
Matthias Urlichs | ba460e4 | 2005-07-14 00:33:47 -0700 | [diff] [blame] | 15 | and analysis of misbehavior with the standard driver |
Matthias Urlichs | 58cfe91 | 2005-05-23 17:00:48 -0700 | [diff] [blame] | 16 | 2005-05-20 v0.2 Extended the input buffer to avoid losing |
| 17 | random 64-byte chunks of data |
| 18 | 2005-05-21 v0.3 implemented chars_in_buffer() |
| 19 | turned on low_latency |
| 20 | simplified the code somewhat |
Matthias Urlichs | ba460e4 | 2005-07-14 00:33:47 -0700 | [diff] [blame] | 21 | 2005-05-24 v0.4 option_write() sometimes deadlocked under heavy load |
| 22 | removed some dead code |
| 23 | added sponsor notice |
| 24 | coding style clean-up |
| 25 | 2005-06-20 v0.4.1 add missing braces :-/ |
| 26 | killed end-of-line whitespace |
| 27 | 2005-07-15 v0.4.2 rename WLAN product to FUSION, add FUSION2 |
Matthias Urlichs | b613738 | 2005-09-22 00:48:40 -0700 | [diff] [blame] | 28 | 2005-09-10 v0.4.3 added HUAWEI E600 card and Audiovox AirCard |
Matthias Urlichs | b27c73d | 2005-09-22 00:49:33 -0700 | [diff] [blame] | 29 | 2005-09-20 v0.4.4 increased recv buffer size: the card sometimes |
| 30 | wants to send >2000 bytes. |
Matthias Urlichs | ba460e4 | 2005-07-14 00:33:47 -0700 | [diff] [blame] | 31 | |
| 32 | Work sponsored by: Sigos GmbH, Germany <info@sigos.de> |
| 33 | |
Matthias Urlichs | 58cfe91 | 2005-05-23 17:00:48 -0700 | [diff] [blame] | 34 | */ |
Matthias Urlichs | ba460e4 | 2005-07-14 00:33:47 -0700 | [diff] [blame] | 35 | |
| 36 | #define DRIVER_VERSION "v0.4" |
Matthias Urlichs | 58cfe91 | 2005-05-23 17:00:48 -0700 | [diff] [blame] | 37 | #define DRIVER_AUTHOR "Matthias Urlichs <smurf@smurf.noris.de>" |
| 38 | #define DRIVER_DESC "Option Card (PC-Card to) USB to Serial Driver" |
| 39 | |
| 40 | #include <linux/config.h> |
| 41 | #include <linux/kernel.h> |
| 42 | #include <linux/jiffies.h> |
| 43 | #include <linux/errno.h> |
| 44 | #include <linux/tty.h> |
| 45 | #include <linux/tty_flip.h> |
| 46 | #include <linux/module.h> |
| 47 | #include <linux/usb.h> |
| 48 | #include "usb-serial.h" |
| 49 | |
| 50 | /* Function prototypes */ |
Andrew Morton | 7bb75ae | 2005-07-27 01:08:30 -0700 | [diff] [blame] | 51 | static int option_open(struct usb_serial_port *port, struct file *filp); |
| 52 | static void option_close(struct usb_serial_port *port, struct file *filp); |
| 53 | static int option_startup(struct usb_serial *serial); |
| 54 | static void option_shutdown(struct usb_serial *serial); |
| 55 | static void option_rx_throttle(struct usb_serial_port *port); |
| 56 | static void option_rx_unthrottle(struct usb_serial_port *port); |
| 57 | static int option_write_room(struct usb_serial_port *port); |
Matthias Urlichs | 58cfe91 | 2005-05-23 17:00:48 -0700 | [diff] [blame] | 58 | |
| 59 | static void option_instat_callback(struct urb *urb, struct pt_regs *regs); |
| 60 | |
Andrew Morton | 7bb75ae | 2005-07-27 01:08:30 -0700 | [diff] [blame] | 61 | static int option_write(struct usb_serial_port *port, |
| 62 | const unsigned char *buf, int count); |
Matthias Urlichs | 58cfe91 | 2005-05-23 17:00:48 -0700 | [diff] [blame] | 63 | |
Andrew Morton | 7bb75ae | 2005-07-27 01:08:30 -0700 | [diff] [blame] | 64 | static int option_chars_in_buffer(struct usb_serial_port *port); |
| 65 | static int option_ioctl(struct usb_serial_port *port, struct file *file, |
| 66 | unsigned int cmd, unsigned long arg); |
| 67 | static void option_set_termios(struct usb_serial_port *port, |
| 68 | struct termios *old); |
| 69 | static void option_break_ctl(struct usb_serial_port *port, int break_state); |
| 70 | static int option_tiocmget(struct usb_serial_port *port, struct file *file); |
| 71 | static int option_tiocmset(struct usb_serial_port *port, struct file *file, |
| 72 | unsigned int set, unsigned int clear); |
| 73 | static int option_send_setup(struct usb_serial_port *port); |
Matthias Urlichs | 58cfe91 | 2005-05-23 17:00:48 -0700 | [diff] [blame] | 74 | |
| 75 | /* Vendor and product IDs */ |
Matthias Urlichs | ba460e4 | 2005-07-14 00:33:47 -0700 | [diff] [blame] | 76 | #define OPTION_VENDOR_ID 0x0AF0 |
Matthias Urlichs | b613738 | 2005-09-22 00:48:40 -0700 | [diff] [blame] | 77 | #define HUAWEI_VENDOR_ID 0x12D1 |
| 78 | #define AUDIOVOX_VENDOR_ID 0x0F3D |
Matthias Urlichs | 58cfe91 | 2005-05-23 17:00:48 -0700 | [diff] [blame] | 79 | |
Matthias Urlichs | ba460e4 | 2005-07-14 00:33:47 -0700 | [diff] [blame] | 80 | #define OPTION_PRODUCT_OLD 0x5000 |
| 81 | #define OPTION_PRODUCT_FUSION 0x6000 |
| 82 | #define OPTION_PRODUCT_FUSION2 0x6300 |
Matthias Urlichs | b613738 | 2005-09-22 00:48:40 -0700 | [diff] [blame] | 83 | #define HUAWEI_PRODUCT_E600 0x1001 |
| 84 | #define AUDIOVOX_PRODUCT_AIRCARD 0x0112 |
Matthias Urlichs | ba460e4 | 2005-07-14 00:33:47 -0700 | [diff] [blame] | 85 | |
Matthias Urlichs | 58cfe91 | 2005-05-23 17:00:48 -0700 | [diff] [blame] | 86 | static struct usb_device_id option_ids[] = { |
| 87 | { USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_OLD) }, |
Matthias Urlichs | ba460e4 | 2005-07-14 00:33:47 -0700 | [diff] [blame] | 88 | { USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_FUSION) }, |
| 89 | { USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_FUSION2) }, |
Matthias Urlichs | b613738 | 2005-09-22 00:48:40 -0700 | [diff] [blame] | 90 | { USB_DEVICE(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E600) }, |
| 91 | { USB_DEVICE(AUDIOVOX_VENDOR_ID, AUDIOVOX_PRODUCT_AIRCARD) }, |
Matthias Urlichs | 58cfe91 | 2005-05-23 17:00:48 -0700 | [diff] [blame] | 92 | { } /* Terminating entry */ |
| 93 | }; |
| 94 | |
| 95 | MODULE_DEVICE_TABLE(usb, option_ids); |
| 96 | |
| 97 | static struct usb_driver option_driver = { |
Matthias Urlichs | 58cfe91 | 2005-05-23 17:00:48 -0700 | [diff] [blame] | 98 | .name = "option", |
| 99 | .probe = usb_serial_probe, |
| 100 | .disconnect = usb_serial_disconnect, |
| 101 | .id_table = option_ids, |
Greg Kroah-Hartman | ba9dc65 | 2005-11-16 13:41:28 -0800 | [diff] [blame] | 102 | .no_dynamic_id = 1, |
Matthias Urlichs | 58cfe91 | 2005-05-23 17:00:48 -0700 | [diff] [blame] | 103 | }; |
| 104 | |
Uwe Zeisberger | c30fe7f | 2006-03-24 18:23:14 +0100 | [diff] [blame^] | 105 | /* The card has three separate interfaces, which the serial driver |
Matthias Urlichs | 58cfe91 | 2005-05-23 17:00:48 -0700 | [diff] [blame] | 106 | * recognizes separately, thus num_port=1. |
| 107 | */ |
Greg Kroah-Hartman | ea65370 | 2005-06-20 21:15:16 -0700 | [diff] [blame] | 108 | static struct usb_serial_driver option_3port_device = { |
Greg Kroah-Hartman | 18fcac3 | 2005-06-20 21:15:16 -0700 | [diff] [blame] | 109 | .driver = { |
| 110 | .owner = THIS_MODULE, |
Greg Kroah-Hartman | 269bda1 | 2005-06-20 21:15:16 -0700 | [diff] [blame] | 111 | .name = "option", |
Greg Kroah-Hartman | 18fcac3 | 2005-06-20 21:15:16 -0700 | [diff] [blame] | 112 | }, |
Greg Kroah-Hartman | 269bda1 | 2005-06-20 21:15:16 -0700 | [diff] [blame] | 113 | .description = "Option 3G data card", |
Matthias Urlichs | ba460e4 | 2005-07-14 00:33:47 -0700 | [diff] [blame] | 114 | .id_table = option_ids, |
| 115 | .num_interrupt_in = NUM_DONT_CARE, |
| 116 | .num_bulk_in = NUM_DONT_CARE, |
| 117 | .num_bulk_out = NUM_DONT_CARE, |
| 118 | .num_ports = 1, /* 3, but the card reports its ports separately */ |
| 119 | .open = option_open, |
| 120 | .close = option_close, |
| 121 | .write = option_write, |
| 122 | .write_room = option_write_room, |
| 123 | .chars_in_buffer = option_chars_in_buffer, |
| 124 | .throttle = option_rx_throttle, |
| 125 | .unthrottle = option_rx_unthrottle, |
| 126 | .ioctl = option_ioctl, |
| 127 | .set_termios = option_set_termios, |
| 128 | .break_ctl = option_break_ctl, |
| 129 | .tiocmget = option_tiocmget, |
| 130 | .tiocmset = option_tiocmset, |
| 131 | .attach = option_startup, |
| 132 | .shutdown = option_shutdown, |
| 133 | .read_int_callback = option_instat_callback, |
Matthias Urlichs | 58cfe91 | 2005-05-23 17:00:48 -0700 | [diff] [blame] | 134 | }; |
| 135 | |
Matthias Urlichs | ba460e4 | 2005-07-14 00:33:47 -0700 | [diff] [blame] | 136 | #ifdef CONFIG_USB_DEBUG |
Matthias Urlichs | 58cfe91 | 2005-05-23 17:00:48 -0700 | [diff] [blame] | 137 | static int debug; |
Matthias Urlichs | ba460e4 | 2005-07-14 00:33:47 -0700 | [diff] [blame] | 138 | #else |
| 139 | #define debug 0 |
| 140 | #endif |
| 141 | |
Matthias Urlichs | 58cfe91 | 2005-05-23 17:00:48 -0700 | [diff] [blame] | 142 | /* per port private data */ |
| 143 | |
Matthias Urlichs | ba460e4 | 2005-07-14 00:33:47 -0700 | [diff] [blame] | 144 | #define N_IN_URB 4 |
| 145 | #define N_OUT_URB 1 |
Matthias Urlichs | b27c73d | 2005-09-22 00:49:33 -0700 | [diff] [blame] | 146 | #define IN_BUFLEN 4096 |
Matthias Urlichs | ba460e4 | 2005-07-14 00:33:47 -0700 | [diff] [blame] | 147 | #define OUT_BUFLEN 128 |
Matthias Urlichs | 58cfe91 | 2005-05-23 17:00:48 -0700 | [diff] [blame] | 148 | |
| 149 | struct option_port_private { |
| 150 | /* Input endpoints and buffer for this port */ |
Matthias Urlichs | ba460e4 | 2005-07-14 00:33:47 -0700 | [diff] [blame] | 151 | struct urb *in_urbs[N_IN_URB]; |
| 152 | char in_buffer[N_IN_URB][IN_BUFLEN]; |
Matthias Urlichs | 58cfe91 | 2005-05-23 17:00:48 -0700 | [diff] [blame] | 153 | /* Output endpoints and buffer for this port */ |
Matthias Urlichs | ba460e4 | 2005-07-14 00:33:47 -0700 | [diff] [blame] | 154 | struct urb *out_urbs[N_OUT_URB]; |
| 155 | char out_buffer[N_OUT_URB][OUT_BUFLEN]; |
Matthias Urlichs | 58cfe91 | 2005-05-23 17:00:48 -0700 | [diff] [blame] | 156 | |
| 157 | /* Settings for the port */ |
Matthias Urlichs | ba460e4 | 2005-07-14 00:33:47 -0700 | [diff] [blame] | 158 | int rts_state; /* Handshaking pins (outputs) */ |
| 159 | int dtr_state; |
| 160 | int cts_state; /* Handshaking pins (inputs) */ |
| 161 | int dsr_state; |
| 162 | int dcd_state; |
| 163 | int ri_state; |
Matthias Urlichs | 58cfe91 | 2005-05-23 17:00:48 -0700 | [diff] [blame] | 164 | |
Matthias Urlichs | ba460e4 | 2005-07-14 00:33:47 -0700 | [diff] [blame] | 165 | unsigned long tx_start_time[N_OUT_URB]; |
Matthias Urlichs | 58cfe91 | 2005-05-23 17:00:48 -0700 | [diff] [blame] | 166 | }; |
| 167 | |
Matthias Urlichs | 58cfe91 | 2005-05-23 17:00:48 -0700 | [diff] [blame] | 168 | /* Functions used by new usb-serial code. */ |
Andrew Morton | 7bb75ae | 2005-07-27 01:08:30 -0700 | [diff] [blame] | 169 | static int __init option_init(void) |
Matthias Urlichs | 58cfe91 | 2005-05-23 17:00:48 -0700 | [diff] [blame] | 170 | { |
| 171 | int retval; |
| 172 | retval = usb_serial_register(&option_3port_device); |
| 173 | if (retval) |
| 174 | goto failed_3port_device_register; |
| 175 | retval = usb_register(&option_driver); |
| 176 | if (retval) |
| 177 | goto failed_driver_register; |
| 178 | |
| 179 | info(DRIVER_DESC ": " DRIVER_VERSION); |
| 180 | |
| 181 | return 0; |
| 182 | |
| 183 | failed_driver_register: |
| 184 | usb_serial_deregister (&option_3port_device); |
| 185 | failed_3port_device_register: |
| 186 | return retval; |
| 187 | } |
| 188 | |
Andrew Morton | 7bb75ae | 2005-07-27 01:08:30 -0700 | [diff] [blame] | 189 | static void __exit option_exit(void) |
Matthias Urlichs | 58cfe91 | 2005-05-23 17:00:48 -0700 | [diff] [blame] | 190 | { |
| 191 | usb_deregister (&option_driver); |
| 192 | usb_serial_deregister (&option_3port_device); |
| 193 | } |
| 194 | |
| 195 | module_init(option_init); |
| 196 | module_exit(option_exit); |
| 197 | |
Andrew Morton | 7bb75ae | 2005-07-27 01:08:30 -0700 | [diff] [blame] | 198 | static void option_rx_throttle(struct usb_serial_port *port) |
Matthias Urlichs | 58cfe91 | 2005-05-23 17:00:48 -0700 | [diff] [blame] | 199 | { |
| 200 | dbg("%s", __FUNCTION__); |
| 201 | } |
| 202 | |
Andrew Morton | 7bb75ae | 2005-07-27 01:08:30 -0700 | [diff] [blame] | 203 | static void option_rx_unthrottle(struct usb_serial_port *port) |
Matthias Urlichs | 58cfe91 | 2005-05-23 17:00:48 -0700 | [diff] [blame] | 204 | { |
| 205 | dbg("%s", __FUNCTION__); |
| 206 | } |
| 207 | |
Andrew Morton | 7bb75ae | 2005-07-27 01:08:30 -0700 | [diff] [blame] | 208 | static void option_break_ctl(struct usb_serial_port *port, int break_state) |
Matthias Urlichs | 58cfe91 | 2005-05-23 17:00:48 -0700 | [diff] [blame] | 209 | { |
| 210 | /* Unfortunately, I don't know how to send a break */ |
Matthias Urlichs | ba460e4 | 2005-07-14 00:33:47 -0700 | [diff] [blame] | 211 | dbg("%s", __FUNCTION__); |
Matthias Urlichs | 58cfe91 | 2005-05-23 17:00:48 -0700 | [diff] [blame] | 212 | } |
| 213 | |
Andrew Morton | 7bb75ae | 2005-07-27 01:08:30 -0700 | [diff] [blame] | 214 | static void option_set_termios(struct usb_serial_port *port, |
| 215 | struct termios *old_termios) |
Matthias Urlichs | 58cfe91 | 2005-05-23 17:00:48 -0700 | [diff] [blame] | 216 | { |
| 217 | dbg("%s", __FUNCTION__); |
| 218 | |
| 219 | option_send_setup(port); |
| 220 | } |
| 221 | |
Andrew Morton | 7bb75ae | 2005-07-27 01:08:30 -0700 | [diff] [blame] | 222 | static int option_tiocmget(struct usb_serial_port *port, struct file *file) |
Matthias Urlichs | 58cfe91 | 2005-05-23 17:00:48 -0700 | [diff] [blame] | 223 | { |
Matthias Urlichs | ba460e4 | 2005-07-14 00:33:47 -0700 | [diff] [blame] | 224 | unsigned int value; |
| 225 | struct option_port_private *portdata; |
Matthias Urlichs | 58cfe91 | 2005-05-23 17:00:48 -0700 | [diff] [blame] | 226 | |
| 227 | portdata = usb_get_serial_port_data(port); |
| 228 | |
| 229 | value = ((portdata->rts_state) ? TIOCM_RTS : 0) | |
| 230 | ((portdata->dtr_state) ? TIOCM_DTR : 0) | |
| 231 | ((portdata->cts_state) ? TIOCM_CTS : 0) | |
| 232 | ((portdata->dsr_state) ? TIOCM_DSR : 0) | |
| 233 | ((portdata->dcd_state) ? TIOCM_CAR : 0) | |
| 234 | ((portdata->ri_state) ? TIOCM_RNG : 0); |
| 235 | |
| 236 | return value; |
| 237 | } |
| 238 | |
Andrew Morton | 7bb75ae | 2005-07-27 01:08:30 -0700 | [diff] [blame] | 239 | static int option_tiocmset(struct usb_serial_port *port, struct file *file, |
| 240 | unsigned int set, unsigned int clear) |
Matthias Urlichs | 58cfe91 | 2005-05-23 17:00:48 -0700 | [diff] [blame] | 241 | { |
Matthias Urlichs | ba460e4 | 2005-07-14 00:33:47 -0700 | [diff] [blame] | 242 | struct option_port_private *portdata; |
Matthias Urlichs | 58cfe91 | 2005-05-23 17:00:48 -0700 | [diff] [blame] | 243 | |
| 244 | portdata = usb_get_serial_port_data(port); |
| 245 | |
| 246 | if (set & TIOCM_RTS) |
| 247 | portdata->rts_state = 1; |
| 248 | if (set & TIOCM_DTR) |
| 249 | portdata->dtr_state = 1; |
| 250 | |
| 251 | if (clear & TIOCM_RTS) |
| 252 | portdata->rts_state = 0; |
| 253 | if (clear & TIOCM_DTR) |
| 254 | portdata->dtr_state = 0; |
| 255 | return option_send_setup(port); |
| 256 | } |
| 257 | |
Andrew Morton | 7bb75ae | 2005-07-27 01:08:30 -0700 | [diff] [blame] | 258 | static int option_ioctl(struct usb_serial_port *port, struct file *file, |
| 259 | unsigned int cmd, unsigned long arg) |
Matthias Urlichs | 58cfe91 | 2005-05-23 17:00:48 -0700 | [diff] [blame] | 260 | { |
| 261 | return -ENOIOCTLCMD; |
| 262 | } |
| 263 | |
| 264 | /* Write */ |
Andrew Morton | 7bb75ae | 2005-07-27 01:08:30 -0700 | [diff] [blame] | 265 | static int option_write(struct usb_serial_port *port, |
| 266 | const unsigned char *buf, int count) |
Matthias Urlichs | 58cfe91 | 2005-05-23 17:00:48 -0700 | [diff] [blame] | 267 | { |
Matthias Urlichs | ba460e4 | 2005-07-14 00:33:47 -0700 | [diff] [blame] | 268 | struct option_port_private *portdata; |
| 269 | int i; |
| 270 | int left, todo; |
| 271 | struct urb *this_urb = NULL; /* spurious */ |
| 272 | int err; |
Matthias Urlichs | 58cfe91 | 2005-05-23 17:00:48 -0700 | [diff] [blame] | 273 | |
| 274 | portdata = usb_get_serial_port_data(port); |
| 275 | |
| 276 | dbg("%s: write (%d chars)", __FUNCTION__, count); |
| 277 | |
Matthias Urlichs | 58cfe91 | 2005-05-23 17:00:48 -0700 | [diff] [blame] | 278 | i = 0; |
| 279 | left = count; |
Matthias Urlichs | ba460e4 | 2005-07-14 00:33:47 -0700 | [diff] [blame] | 280 | for (i=0; left > 0 && i < N_OUT_URB; i++) { |
Matthias Urlichs | 58cfe91 | 2005-05-23 17:00:48 -0700 | [diff] [blame] | 281 | todo = left; |
| 282 | if (todo > OUT_BUFLEN) |
| 283 | todo = OUT_BUFLEN; |
| 284 | |
Matthias Urlichs | ba460e4 | 2005-07-14 00:33:47 -0700 | [diff] [blame] | 285 | this_urb = portdata->out_urbs[i]; |
| 286 | if (this_urb->status == -EINPROGRESS) { |
Andrew Morton | 7bb75ae | 2005-07-27 01:08:30 -0700 | [diff] [blame] | 287 | if (time_before(jiffies, |
| 288 | portdata->tx_start_time[i] + 10 * HZ)) |
Matthias Urlichs | 58cfe91 | 2005-05-23 17:00:48 -0700 | [diff] [blame] | 289 | continue; |
Matthias Urlichs | 58cfe91 | 2005-05-23 17:00:48 -0700 | [diff] [blame] | 290 | usb_unlink_urb(this_urb); |
Matthias Urlichs | ba460e4 | 2005-07-14 00:33:47 -0700 | [diff] [blame] | 291 | continue; |
Matthias Urlichs | 58cfe91 | 2005-05-23 17:00:48 -0700 | [diff] [blame] | 292 | } |
Matthias Urlichs | ba460e4 | 2005-07-14 00:33:47 -0700 | [diff] [blame] | 293 | if (this_urb->status != 0) |
Andrew Morton | 7bb75ae | 2005-07-27 01:08:30 -0700 | [diff] [blame] | 294 | dbg("usb_write %p failed (err=%d)", |
| 295 | this_urb, this_urb->status); |
Matthias Urlichs | 58cfe91 | 2005-05-23 17:00:48 -0700 | [diff] [blame] | 296 | |
Andrew Morton | 7bb75ae | 2005-07-27 01:08:30 -0700 | [diff] [blame] | 297 | dbg("%s: endpoint %d buf %d", __FUNCTION__, |
| 298 | usb_pipeendpoint(this_urb->pipe), i); |
Matthias Urlichs | 58cfe91 | 2005-05-23 17:00:48 -0700 | [diff] [blame] | 299 | |
Matthias Urlichs | ba460e4 | 2005-07-14 00:33:47 -0700 | [diff] [blame] | 300 | /* send the data */ |
Matthias Urlichs | 58cfe91 | 2005-05-23 17:00:48 -0700 | [diff] [blame] | 301 | memcpy (this_urb->transfer_buffer, buf, todo); |
Matthias Urlichs | 58cfe91 | 2005-05-23 17:00:48 -0700 | [diff] [blame] | 302 | this_urb->transfer_buffer_length = todo; |
| 303 | |
Matthias Urlichs | 58cfe91 | 2005-05-23 17:00:48 -0700 | [diff] [blame] | 304 | this_urb->dev = port->serial->dev; |
| 305 | err = usb_submit_urb(this_urb, GFP_ATOMIC); |
| 306 | if (err) { |
Andrew Morton | 7bb75ae | 2005-07-27 01:08:30 -0700 | [diff] [blame] | 307 | dbg("usb_submit_urb %p (write bulk) failed " |
| 308 | "(%d, has %d)", this_urb, |
| 309 | err, this_urb->status); |
Matthias Urlichs | 58cfe91 | 2005-05-23 17:00:48 -0700 | [diff] [blame] | 310 | continue; |
| 311 | } |
| 312 | portdata->tx_start_time[i] = jiffies; |
| 313 | buf += todo; |
| 314 | left -= todo; |
| 315 | } |
| 316 | |
| 317 | count -= left; |
Matthias Urlichs | 58cfe91 | 2005-05-23 17:00:48 -0700 | [diff] [blame] | 318 | dbg("%s: wrote (did %d)", __FUNCTION__, count); |
| 319 | return count; |
| 320 | } |
| 321 | |
Andrew Morton | 7bb75ae | 2005-07-27 01:08:30 -0700 | [diff] [blame] | 322 | static void option_indat_callback(struct urb *urb, struct pt_regs *regs) |
Matthias Urlichs | 58cfe91 | 2005-05-23 17:00:48 -0700 | [diff] [blame] | 323 | { |
Alan Cox | 33f0f88 | 2006-01-09 20:54:13 -0800 | [diff] [blame] | 324 | int err; |
Matthias Urlichs | 58cfe91 | 2005-05-23 17:00:48 -0700 | [diff] [blame] | 325 | int endpoint; |
| 326 | struct usb_serial_port *port; |
| 327 | struct tty_struct *tty; |
| 328 | unsigned char *data = urb->transfer_buffer; |
| 329 | |
| 330 | dbg("%s: %p", __FUNCTION__, urb); |
| 331 | |
| 332 | endpoint = usb_pipeendpoint(urb->pipe); |
| 333 | port = (struct usb_serial_port *) urb->context; |
| 334 | |
| 335 | if (urb->status) { |
| 336 | dbg("%s: nonzero status: %d on endpoint %02x.", |
| 337 | __FUNCTION__, urb->status, endpoint); |
| 338 | } else { |
| 339 | tty = port->tty; |
| 340 | if (urb->actual_length) { |
Alan Cox | 33f0f88 | 2006-01-09 20:54:13 -0800 | [diff] [blame] | 341 | tty_buffer_request_room(tty, urb->actual_length); |
| 342 | tty_insert_flip_string(tty, data, urb->actual_length); |
Matthias Urlichs | 58cfe91 | 2005-05-23 17:00:48 -0700 | [diff] [blame] | 343 | tty_flip_buffer_push(tty); |
| 344 | } else { |
| 345 | dbg("%s: empty read urb received", __FUNCTION__); |
| 346 | } |
| 347 | |
| 348 | /* Resubmit urb so we continue receiving */ |
| 349 | if (port->open_count && urb->status != -ESHUTDOWN) { |
| 350 | err = usb_submit_urb(urb, GFP_ATOMIC); |
| 351 | if (err) |
Andrew Morton | 7bb75ae | 2005-07-27 01:08:30 -0700 | [diff] [blame] | 352 | printk(KERN_ERR "%s: resubmit read urb failed. " |
| 353 | "(%d)", __FUNCTION__, err); |
Matthias Urlichs | 58cfe91 | 2005-05-23 17:00:48 -0700 | [diff] [blame] | 354 | } |
| 355 | } |
| 356 | return; |
| 357 | } |
| 358 | |
Andrew Morton | 7bb75ae | 2005-07-27 01:08:30 -0700 | [diff] [blame] | 359 | static void option_outdat_callback(struct urb *urb, struct pt_regs *regs) |
Matthias Urlichs | 58cfe91 | 2005-05-23 17:00:48 -0700 | [diff] [blame] | 360 | { |
| 361 | struct usb_serial_port *port; |
| 362 | |
| 363 | dbg("%s", __FUNCTION__); |
| 364 | |
| 365 | port = (struct usb_serial_port *) urb->context; |
| 366 | |
| 367 | if (port->open_count) |
| 368 | schedule_work(&port->work); |
| 369 | } |
| 370 | |
Andrew Morton | 7bb75ae | 2005-07-27 01:08:30 -0700 | [diff] [blame] | 371 | static void option_instat_callback(struct urb *urb, struct pt_regs *regs) |
Matthias Urlichs | 58cfe91 | 2005-05-23 17:00:48 -0700 | [diff] [blame] | 372 | { |
| 373 | int err; |
| 374 | struct usb_serial_port *port = (struct usb_serial_port *) urb->context; |
| 375 | struct option_port_private *portdata = usb_get_serial_port_data(port); |
| 376 | struct usb_serial *serial = port->serial; |
| 377 | |
| 378 | dbg("%s", __FUNCTION__); |
| 379 | dbg("%s: urb %p port %p has data %p", __FUNCTION__,urb,port,portdata); |
| 380 | |
| 381 | if (urb->status == 0) { |
| 382 | struct usb_ctrlrequest *req_pkt = |
| 383 | (struct usb_ctrlrequest *)urb->transfer_buffer; |
| 384 | |
| 385 | if (!req_pkt) { |
| 386 | dbg("%s: NULL req_pkt\n", __FUNCTION__); |
| 387 | return; |
| 388 | } |
Andrew Morton | 7bb75ae | 2005-07-27 01:08:30 -0700 | [diff] [blame] | 389 | if ((req_pkt->bRequestType == 0xA1) && |
| 390 | (req_pkt->bRequest == 0x20)) { |
Matthias Urlichs | 58cfe91 | 2005-05-23 17:00:48 -0700 | [diff] [blame] | 391 | int old_dcd_state; |
| 392 | unsigned char signals = *((unsigned char *) |
Andrew Morton | 7bb75ae | 2005-07-27 01:08:30 -0700 | [diff] [blame] | 393 | urb->transfer_buffer + |
| 394 | sizeof(struct usb_ctrlrequest)); |
Matthias Urlichs | 58cfe91 | 2005-05-23 17:00:48 -0700 | [diff] [blame] | 395 | |
| 396 | dbg("%s: signal x%x", __FUNCTION__, signals); |
| 397 | |
| 398 | old_dcd_state = portdata->dcd_state; |
| 399 | portdata->cts_state = 1; |
| 400 | portdata->dcd_state = ((signals & 0x01) ? 1 : 0); |
| 401 | portdata->dsr_state = ((signals & 0x02) ? 1 : 0); |
| 402 | portdata->ri_state = ((signals & 0x08) ? 1 : 0); |
| 403 | |
Andrew Morton | 7bb75ae | 2005-07-27 01:08:30 -0700 | [diff] [blame] | 404 | if (port->tty && !C_CLOCAL(port->tty) && |
| 405 | old_dcd_state && !portdata->dcd_state) |
Matthias Urlichs | 58cfe91 | 2005-05-23 17:00:48 -0700 | [diff] [blame] | 406 | tty_hangup(port->tty); |
Andrew Morton | 7bb75ae | 2005-07-27 01:08:30 -0700 | [diff] [blame] | 407 | } else { |
| 408 | dbg("%s: type %x req %x", __FUNCTION__, |
| 409 | req_pkt->bRequestType,req_pkt->bRequest); |
| 410 | } |
Matthias Urlichs | 58cfe91 | 2005-05-23 17:00:48 -0700 | [diff] [blame] | 411 | } else |
| 412 | dbg("%s: error %d", __FUNCTION__, urb->status); |
| 413 | |
| 414 | /* Resubmit urb so we continue receiving IRQ data */ |
| 415 | if (urb->status != -ESHUTDOWN) { |
| 416 | urb->dev = serial->dev; |
| 417 | err = usb_submit_urb(urb, GFP_ATOMIC); |
| 418 | if (err) |
Andrew Morton | 7bb75ae | 2005-07-27 01:08:30 -0700 | [diff] [blame] | 419 | dbg("%s: resubmit intr urb failed. (%d)", |
| 420 | __FUNCTION__, err); |
Matthias Urlichs | 58cfe91 | 2005-05-23 17:00:48 -0700 | [diff] [blame] | 421 | } |
| 422 | } |
| 423 | |
Andrew Morton | 7bb75ae | 2005-07-27 01:08:30 -0700 | [diff] [blame] | 424 | static int option_write_room(struct usb_serial_port *port) |
Matthias Urlichs | 58cfe91 | 2005-05-23 17:00:48 -0700 | [diff] [blame] | 425 | { |
| 426 | struct option_port_private *portdata; |
| 427 | int i; |
| 428 | int data_len = 0; |
| 429 | struct urb *this_urb; |
| 430 | |
| 431 | portdata = usb_get_serial_port_data(port); |
| 432 | |
Matthias Urlichs | ba460e4 | 2005-07-14 00:33:47 -0700 | [diff] [blame] | 433 | for (i=0; i < N_OUT_URB; i++) { |
Matthias Urlichs | 58cfe91 | 2005-05-23 17:00:48 -0700 | [diff] [blame] | 434 | this_urb = portdata->out_urbs[i]; |
| 435 | if (this_urb && this_urb->status != -EINPROGRESS) |
| 436 | data_len += OUT_BUFLEN; |
Matthias Urlichs | ba460e4 | 2005-07-14 00:33:47 -0700 | [diff] [blame] | 437 | } |
Matthias Urlichs | 58cfe91 | 2005-05-23 17:00:48 -0700 | [diff] [blame] | 438 | |
| 439 | dbg("%s: %d", __FUNCTION__, data_len); |
| 440 | return data_len; |
| 441 | } |
| 442 | |
Andrew Morton | 7bb75ae | 2005-07-27 01:08:30 -0700 | [diff] [blame] | 443 | static int option_chars_in_buffer(struct usb_serial_port *port) |
Matthias Urlichs | 58cfe91 | 2005-05-23 17:00:48 -0700 | [diff] [blame] | 444 | { |
| 445 | struct option_port_private *portdata; |
| 446 | int i; |
| 447 | int data_len = 0; |
| 448 | struct urb *this_urb; |
| 449 | |
| 450 | portdata = usb_get_serial_port_data(port); |
| 451 | |
Matthias Urlichs | ba460e4 | 2005-07-14 00:33:47 -0700 | [diff] [blame] | 452 | for (i=0; i < N_OUT_URB; i++) { |
Matthias Urlichs | 58cfe91 | 2005-05-23 17:00:48 -0700 | [diff] [blame] | 453 | this_urb = portdata->out_urbs[i]; |
| 454 | if (this_urb && this_urb->status == -EINPROGRESS) |
| 455 | data_len += this_urb->transfer_buffer_length; |
Matthias Urlichs | ba460e4 | 2005-07-14 00:33:47 -0700 | [diff] [blame] | 456 | } |
Matthias Urlichs | 58cfe91 | 2005-05-23 17:00:48 -0700 | [diff] [blame] | 457 | dbg("%s: %d", __FUNCTION__, data_len); |
| 458 | return data_len; |
| 459 | } |
| 460 | |
Andrew Morton | 7bb75ae | 2005-07-27 01:08:30 -0700 | [diff] [blame] | 461 | static int option_open(struct usb_serial_port *port, struct file *filp) |
Matthias Urlichs | 58cfe91 | 2005-05-23 17:00:48 -0700 | [diff] [blame] | 462 | { |
Matthias Urlichs | ba460e4 | 2005-07-14 00:33:47 -0700 | [diff] [blame] | 463 | struct option_port_private *portdata; |
| 464 | struct usb_serial *serial = port->serial; |
| 465 | int i, err; |
| 466 | struct urb *urb; |
Matthias Urlichs | 58cfe91 | 2005-05-23 17:00:48 -0700 | [diff] [blame] | 467 | |
| 468 | portdata = usb_get_serial_port_data(port); |
| 469 | |
| 470 | dbg("%s", __FUNCTION__); |
| 471 | |
| 472 | /* Set some sane defaults */ |
| 473 | portdata->rts_state = 1; |
| 474 | portdata->dtr_state = 1; |
| 475 | |
| 476 | /* Reset low level data toggle and start reading from endpoints */ |
| 477 | for (i = 0; i < N_IN_URB; i++) { |
| 478 | urb = portdata->in_urbs[i]; |
| 479 | if (! urb) |
| 480 | continue; |
| 481 | if (urb->dev != serial->dev) { |
Andrew Morton | 7bb75ae | 2005-07-27 01:08:30 -0700 | [diff] [blame] | 482 | dbg("%s: dev %p != %p", __FUNCTION__, |
| 483 | urb->dev, serial->dev); |
Matthias Urlichs | 58cfe91 | 2005-05-23 17:00:48 -0700 | [diff] [blame] | 484 | continue; |
| 485 | } |
| 486 | |
Andrew Morton | 7bb75ae | 2005-07-27 01:08:30 -0700 | [diff] [blame] | 487 | /* |
| 488 | * make sure endpoint data toggle is synchronized with the |
| 489 | * device |
| 490 | */ |
Matthias Urlichs | 58cfe91 | 2005-05-23 17:00:48 -0700 | [diff] [blame] | 491 | usb_clear_halt(urb->dev, urb->pipe); |
| 492 | |
| 493 | err = usb_submit_urb(urb, GFP_KERNEL); |
| 494 | if (err) { |
Andrew Morton | 7bb75ae | 2005-07-27 01:08:30 -0700 | [diff] [blame] | 495 | dbg("%s: submit urb %d failed (%d) %d", |
| 496 | __FUNCTION__, i, err, |
Matthias Urlichs | 58cfe91 | 2005-05-23 17:00:48 -0700 | [diff] [blame] | 497 | urb->transfer_buffer_length); |
| 498 | } |
| 499 | } |
| 500 | |
| 501 | /* Reset low level data toggle on out endpoints */ |
| 502 | for (i = 0; i < N_OUT_URB; i++) { |
| 503 | urb = portdata->out_urbs[i]; |
| 504 | if (! urb) |
| 505 | continue; |
| 506 | urb->dev = serial->dev; |
Andrew Morton | 7bb75ae | 2005-07-27 01:08:30 -0700 | [diff] [blame] | 507 | /* usb_settoggle(urb->dev, usb_pipeendpoint(urb->pipe), |
| 508 | usb_pipeout(urb->pipe), 0); */ |
Matthias Urlichs | 58cfe91 | 2005-05-23 17:00:48 -0700 | [diff] [blame] | 509 | } |
| 510 | |
| 511 | port->tty->low_latency = 1; |
| 512 | |
| 513 | option_send_setup(port); |
| 514 | |
| 515 | return (0); |
| 516 | } |
| 517 | |
Andrew Morton | 7bb75ae | 2005-07-27 01:08:30 -0700 | [diff] [blame] | 518 | static inline void stop_urb(struct urb *urb) |
Matthias Urlichs | 58cfe91 | 2005-05-23 17:00:48 -0700 | [diff] [blame] | 519 | { |
Greg Kroah-Hartman | 242cf67 | 2005-07-29 16:11:07 -0400 | [diff] [blame] | 520 | if (urb && urb->status == -EINPROGRESS) |
Matthias Urlichs | 58cfe91 | 2005-05-23 17:00:48 -0700 | [diff] [blame] | 521 | usb_kill_urb(urb); |
Matthias Urlichs | 58cfe91 | 2005-05-23 17:00:48 -0700 | [diff] [blame] | 522 | } |
| 523 | |
Andrew Morton | 7bb75ae | 2005-07-27 01:08:30 -0700 | [diff] [blame] | 524 | static void option_close(struct usb_serial_port *port, struct file *filp) |
Matthias Urlichs | 58cfe91 | 2005-05-23 17:00:48 -0700 | [diff] [blame] | 525 | { |
Matthias Urlichs | ba460e4 | 2005-07-14 00:33:47 -0700 | [diff] [blame] | 526 | int i; |
| 527 | struct usb_serial *serial = port->serial; |
| 528 | struct option_port_private *portdata; |
Matthias Urlichs | 58cfe91 | 2005-05-23 17:00:48 -0700 | [diff] [blame] | 529 | |
| 530 | dbg("%s", __FUNCTION__); |
| 531 | portdata = usb_get_serial_port_data(port); |
| 532 | |
| 533 | portdata->rts_state = 0; |
| 534 | portdata->dtr_state = 0; |
| 535 | |
| 536 | if (serial->dev) { |
| 537 | option_send_setup(port); |
| 538 | |
| 539 | /* Stop reading/writing urbs */ |
| 540 | for (i = 0; i < N_IN_URB; i++) |
| 541 | stop_urb(portdata->in_urbs[i]); |
| 542 | for (i = 0; i < N_OUT_URB; i++) |
| 543 | stop_urb(portdata->out_urbs[i]); |
| 544 | } |
| 545 | port->tty = NULL; |
| 546 | } |
| 547 | |
Matthias Urlichs | 58cfe91 | 2005-05-23 17:00:48 -0700 | [diff] [blame] | 548 | /* Helper functions used by option_setup_urbs */ |
Andrew Morton | 7bb75ae | 2005-07-27 01:08:30 -0700 | [diff] [blame] | 549 | static struct urb *option_setup_urb(struct usb_serial *serial, int endpoint, |
| 550 | int dir, void *ctx, char *buf, int len, |
| 551 | void (*callback)(struct urb *, struct pt_regs *regs)) |
Matthias Urlichs | 58cfe91 | 2005-05-23 17:00:48 -0700 | [diff] [blame] | 552 | { |
| 553 | struct urb *urb; |
| 554 | |
| 555 | if (endpoint == -1) |
| 556 | return NULL; /* endpoint not needed */ |
| 557 | |
| 558 | urb = usb_alloc_urb(0, GFP_KERNEL); /* No ISO */ |
| 559 | if (urb == NULL) { |
| 560 | dbg("%s: alloc for endpoint %d failed.", __FUNCTION__, endpoint); |
| 561 | return NULL; |
| 562 | } |
| 563 | |
| 564 | /* Fill URB using supplied data. */ |
| 565 | usb_fill_bulk_urb(urb, serial->dev, |
| 566 | usb_sndbulkpipe(serial->dev, endpoint) | dir, |
| 567 | buf, len, callback, ctx); |
| 568 | |
| 569 | return urb; |
| 570 | } |
| 571 | |
| 572 | /* Setup urbs */ |
Andrew Morton | 7bb75ae | 2005-07-27 01:08:30 -0700 | [diff] [blame] | 573 | static void option_setup_urbs(struct usb_serial *serial) |
Matthias Urlichs | 58cfe91 | 2005-05-23 17:00:48 -0700 | [diff] [blame] | 574 | { |
Matthias Urlichs | ba460e4 | 2005-07-14 00:33:47 -0700 | [diff] [blame] | 575 | int j; |
| 576 | struct usb_serial_port *port; |
| 577 | struct option_port_private *portdata; |
Matthias Urlichs | 58cfe91 | 2005-05-23 17:00:48 -0700 | [diff] [blame] | 578 | |
| 579 | dbg("%s", __FUNCTION__); |
| 580 | |
| 581 | port = serial->port[0]; |
| 582 | portdata = usb_get_serial_port_data(port); |
| 583 | |
| 584 | /* Do indat endpoints first */ |
| 585 | for (j = 0; j <= N_IN_URB; ++j) { |
| 586 | portdata->in_urbs[j] = option_setup_urb (serial, |
| 587 | port->bulk_in_endpointAddress, USB_DIR_IN, port, |
| 588 | portdata->in_buffer[j], IN_BUFLEN, option_indat_callback); |
| 589 | } |
| 590 | |
| 591 | /* outdat endpoints */ |
| 592 | for (j = 0; j <= N_OUT_URB; ++j) { |
| 593 | portdata->out_urbs[j] = option_setup_urb (serial, |
| 594 | port->bulk_out_endpointAddress, USB_DIR_OUT, port, |
| 595 | portdata->out_buffer[j], OUT_BUFLEN, option_outdat_callback); |
| 596 | } |
| 597 | } |
| 598 | |
Andrew Morton | 7bb75ae | 2005-07-27 01:08:30 -0700 | [diff] [blame] | 599 | static int option_send_setup(struct usb_serial_port *port) |
Matthias Urlichs | 58cfe91 | 2005-05-23 17:00:48 -0700 | [diff] [blame] | 600 | { |
| 601 | struct usb_serial *serial = port->serial; |
| 602 | struct option_port_private *portdata; |
| 603 | |
| 604 | dbg("%s", __FUNCTION__); |
| 605 | |
| 606 | portdata = usb_get_serial_port_data(port); |
| 607 | |
| 608 | if (port->tty) { |
| 609 | int val = 0; |
| 610 | if (portdata->dtr_state) |
| 611 | val |= 0x01; |
| 612 | if (portdata->rts_state) |
| 613 | val |= 0x02; |
| 614 | |
Andrew Morton | 7bb75ae | 2005-07-27 01:08:30 -0700 | [diff] [blame] | 615 | return usb_control_msg(serial->dev, |
| 616 | usb_rcvctrlpipe(serial->dev, 0), |
| 617 | 0x22,0x21,val,0,NULL,0,USB_CTRL_SET_TIMEOUT); |
Matthias Urlichs | 58cfe91 | 2005-05-23 17:00:48 -0700 | [diff] [blame] | 618 | } |
| 619 | |
| 620 | return 0; |
| 621 | } |
| 622 | |
Andrew Morton | 7bb75ae | 2005-07-27 01:08:30 -0700 | [diff] [blame] | 623 | static int option_startup(struct usb_serial *serial) |
Matthias Urlichs | 58cfe91 | 2005-05-23 17:00:48 -0700 | [diff] [blame] | 624 | { |
Matthias Urlichs | ba460e4 | 2005-07-14 00:33:47 -0700 | [diff] [blame] | 625 | int i, err; |
| 626 | struct usb_serial_port *port; |
| 627 | struct option_port_private *portdata; |
Matthias Urlichs | 58cfe91 | 2005-05-23 17:00:48 -0700 | [diff] [blame] | 628 | |
| 629 | dbg("%s", __FUNCTION__); |
| 630 | |
| 631 | /* Now setup per port private data */ |
| 632 | for (i = 0; i < serial->num_ports; i++) { |
| 633 | port = serial->port[i]; |
Eric Sesterhenn | 80b6ca4 | 2006-02-27 21:29:43 +0100 | [diff] [blame] | 634 | portdata = kzalloc(sizeof(*portdata), GFP_KERNEL); |
Matthias Urlichs | 58cfe91 | 2005-05-23 17:00:48 -0700 | [diff] [blame] | 635 | if (!portdata) { |
Andrew Morton | 7bb75ae | 2005-07-27 01:08:30 -0700 | [diff] [blame] | 636 | dbg("%s: kmalloc for option_port_private (%d) failed!.", |
| 637 | __FUNCTION__, i); |
Matthias Urlichs | 58cfe91 | 2005-05-23 17:00:48 -0700 | [diff] [blame] | 638 | return (1); |
| 639 | } |
Matthias Urlichs | 58cfe91 | 2005-05-23 17:00:48 -0700 | [diff] [blame] | 640 | |
| 641 | usb_set_serial_port_data(port, portdata); |
| 642 | |
| 643 | if (! port->interrupt_in_urb) |
| 644 | continue; |
| 645 | err = usb_submit_urb(port->interrupt_in_urb, GFP_KERNEL); |
| 646 | if (err) |
Andrew Morton | 7bb75ae | 2005-07-27 01:08:30 -0700 | [diff] [blame] | 647 | dbg("%s: submit irq_in urb failed %d", |
| 648 | __FUNCTION__, err); |
Matthias Urlichs | 58cfe91 | 2005-05-23 17:00:48 -0700 | [diff] [blame] | 649 | } |
| 650 | |
| 651 | option_setup_urbs(serial); |
| 652 | |
| 653 | return (0); |
| 654 | } |
| 655 | |
Andrew Morton | 7bb75ae | 2005-07-27 01:08:30 -0700 | [diff] [blame] | 656 | static void option_shutdown(struct usb_serial *serial) |
Matthias Urlichs | 58cfe91 | 2005-05-23 17:00:48 -0700 | [diff] [blame] | 657 | { |
Matthias Urlichs | ba460e4 | 2005-07-14 00:33:47 -0700 | [diff] [blame] | 658 | int i, j; |
| 659 | struct usb_serial_port *port; |
| 660 | struct option_port_private *portdata; |
Matthias Urlichs | 58cfe91 | 2005-05-23 17:00:48 -0700 | [diff] [blame] | 661 | |
| 662 | dbg("%s", __FUNCTION__); |
| 663 | |
| 664 | /* Stop reading/writing urbs */ |
| 665 | for (i = 0; i < serial->num_ports; ++i) { |
| 666 | port = serial->port[i]; |
| 667 | portdata = usb_get_serial_port_data(port); |
| 668 | for (j = 0; j < N_IN_URB; j++) |
| 669 | stop_urb(portdata->in_urbs[j]); |
| 670 | for (j = 0; j < N_OUT_URB; j++) |
| 671 | stop_urb(portdata->out_urbs[j]); |
| 672 | } |
| 673 | |
| 674 | /* Now free them */ |
| 675 | for (i = 0; i < serial->num_ports; ++i) { |
| 676 | port = serial->port[i]; |
| 677 | portdata = usb_get_serial_port_data(port); |
| 678 | |
| 679 | for (j = 0; j < N_IN_URB; j++) { |
| 680 | if (portdata->in_urbs[j]) { |
| 681 | usb_free_urb(portdata->in_urbs[j]); |
| 682 | portdata->in_urbs[j] = NULL; |
| 683 | } |
| 684 | } |
| 685 | for (j = 0; j < N_OUT_URB; j++) { |
| 686 | if (portdata->out_urbs[j]) { |
| 687 | usb_free_urb(portdata->out_urbs[j]); |
| 688 | portdata->out_urbs[j] = NULL; |
| 689 | } |
| 690 | } |
| 691 | } |
| 692 | |
| 693 | /* Now free per port private data */ |
| 694 | for (i = 0; i < serial->num_ports; i++) { |
| 695 | port = serial->port[i]; |
| 696 | kfree(usb_get_serial_port_data(port)); |
| 697 | } |
| 698 | } |
| 699 | |
| 700 | MODULE_AUTHOR(DRIVER_AUTHOR); |
| 701 | MODULE_DESCRIPTION(DRIVER_DESC); |
| 702 | MODULE_VERSION(DRIVER_VERSION); |
| 703 | MODULE_LICENSE("GPL"); |
| 704 | |
Matthias Urlichs | ba460e4 | 2005-07-14 00:33:47 -0700 | [diff] [blame] | 705 | #ifdef CONFIG_USB_DEBUG |
Matthias Urlichs | 58cfe91 | 2005-05-23 17:00:48 -0700 | [diff] [blame] | 706 | module_param(debug, bool, S_IRUGO | S_IWUSR); |
| 707 | MODULE_PARM_DESC(debug, "Debug messages"); |
Matthias Urlichs | ba460e4 | 2005-07-14 00:33:47 -0700 | [diff] [blame] | 708 | #endif |
Matthias Urlichs | 58cfe91 | 2005-05-23 17:00:48 -0700 | [diff] [blame] | 709 | |