Matthias Urlichs | 58cfe91 | 2005-05-23 17:00:48 -0700 | [diff] [blame] | 1 | /* |
Matthias Urlichs | 14f76cc | 2006-06-02 11:48:56 +0200 | [diff] [blame] | 2 | USB Driver for GSM modems |
Matthias Urlichs | 58cfe91 | 2005-05-23 17:00:48 -0700 | [diff] [blame] | 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 | 14f76cc | 2006-06-02 11:48:56 +0200 | [diff] [blame] | 31 | 2006-04-10 v0.5 fixed two array overrun errors :-/ |
| 32 | 2006-04-21 v0.5.1 added support for Sierra Wireless MC8755 |
| 33 | 2006-05-15 v0.6 re-enable multi-port support |
| 34 | 2006-06-01 v0.6.1 add COBRA |
| 35 | 2006-06-01 v0.6.2 add backwards-compatibility stuff |
| 36 | 2006-06-01 v0.6.3 add Novatel Wireless |
| 37 | 2006-06-01 v0.7 Option => GSM |
Matthias Urlichs | e37de9e | 2006-07-06 13:12:53 +0200 | [diff] [blame] | 38 | 2006-06-01 v0.7.1 add COBRA2 |
Matthias Urlichs | ba460e4 | 2005-07-14 00:33:47 -0700 | [diff] [blame] | 39 | |
| 40 | Work sponsored by: Sigos GmbH, Germany <info@sigos.de> |
| 41 | |
Matthias Urlichs | 14f76cc | 2006-06-02 11:48:56 +0200 | [diff] [blame] | 42 | This driver exists because the "normal" serial driver doesn't work too well |
| 43 | with GSM modems. Issues: |
| 44 | - data loss -- one single Receive URB is not nearly enough |
| 45 | - nonstandard flow (Option devices) and multiplex (Sierra) control |
| 46 | - controlling the baud rate doesn't make sense |
| 47 | |
| 48 | This driver is named "option" because the most common device it's |
| 49 | used for is a PC-Card (with an internal OHCI-USB interface, behind |
| 50 | which the GSM interface sits), made by Option Inc. |
| 51 | |
| 52 | Some of the "one port" devices actually exhibit multiple USB instances |
| 53 | on the USB bus. This is not a bug, these ports are used for different |
| 54 | device features. |
Matthias Urlichs | 58cfe91 | 2005-05-23 17:00:48 -0700 | [diff] [blame] | 55 | */ |
Matthias Urlichs | ba460e4 | 2005-07-14 00:33:47 -0700 | [diff] [blame] | 56 | |
Matthias Urlichs | e37de9e | 2006-07-06 13:12:53 +0200 | [diff] [blame] | 57 | #define DRIVER_VERSION "v0.7.1" |
Matthias Urlichs | 58cfe91 | 2005-05-23 17:00:48 -0700 | [diff] [blame] | 58 | #define DRIVER_AUTHOR "Matthias Urlichs <smurf@smurf.noris.de>" |
Matthias Urlichs | 14f76cc | 2006-06-02 11:48:56 +0200 | [diff] [blame] | 59 | #define DRIVER_DESC "USB Driver for GSM modems" |
Matthias Urlichs | 58cfe91 | 2005-05-23 17:00:48 -0700 | [diff] [blame] | 60 | |
Matthias Urlichs | 58cfe91 | 2005-05-23 17:00:48 -0700 | [diff] [blame] | 61 | #include <linux/kernel.h> |
| 62 | #include <linux/jiffies.h> |
| 63 | #include <linux/errno.h> |
| 64 | #include <linux/tty.h> |
| 65 | #include <linux/tty_flip.h> |
| 66 | #include <linux/module.h> |
| 67 | #include <linux/usb.h> |
Greg Kroah-Hartman | a969888 | 2006-07-11 21:22:58 -0700 | [diff] [blame^] | 68 | #include <linux/usb/serial.h> |
Matthias Urlichs | 58cfe91 | 2005-05-23 17:00:48 -0700 | [diff] [blame] | 69 | |
| 70 | /* Function prototypes */ |
Andrew Morton | 7bb75ae | 2005-07-27 01:08:30 -0700 | [diff] [blame] | 71 | static int option_open(struct usb_serial_port *port, struct file *filp); |
| 72 | static void option_close(struct usb_serial_port *port, struct file *filp); |
| 73 | static int option_startup(struct usb_serial *serial); |
| 74 | static void option_shutdown(struct usb_serial *serial); |
| 75 | static void option_rx_throttle(struct usb_serial_port *port); |
| 76 | static void option_rx_unthrottle(struct usb_serial_port *port); |
| 77 | static int option_write_room(struct usb_serial_port *port); |
Matthias Urlichs | 58cfe91 | 2005-05-23 17:00:48 -0700 | [diff] [blame] | 78 | |
| 79 | static void option_instat_callback(struct urb *urb, struct pt_regs *regs); |
| 80 | |
Andrew Morton | 7bb75ae | 2005-07-27 01:08:30 -0700 | [diff] [blame] | 81 | static int option_write(struct usb_serial_port *port, |
| 82 | const unsigned char *buf, int count); |
Matthias Urlichs | 58cfe91 | 2005-05-23 17:00:48 -0700 | [diff] [blame] | 83 | |
Andrew Morton | 7bb75ae | 2005-07-27 01:08:30 -0700 | [diff] [blame] | 84 | static int option_chars_in_buffer(struct usb_serial_port *port); |
| 85 | static int option_ioctl(struct usb_serial_port *port, struct file *file, |
| 86 | unsigned int cmd, unsigned long arg); |
| 87 | static void option_set_termios(struct usb_serial_port *port, |
| 88 | struct termios *old); |
| 89 | static void option_break_ctl(struct usb_serial_port *port, int break_state); |
| 90 | static int option_tiocmget(struct usb_serial_port *port, struct file *file); |
| 91 | static int option_tiocmset(struct usb_serial_port *port, struct file *file, |
| 92 | unsigned int set, unsigned int clear); |
| 93 | static int option_send_setup(struct usb_serial_port *port); |
Matthias Urlichs | 58cfe91 | 2005-05-23 17:00:48 -0700 | [diff] [blame] | 94 | |
| 95 | /* Vendor and product IDs */ |
Matthias Urlichs | 14f76cc | 2006-06-02 11:48:56 +0200 | [diff] [blame] | 96 | #define OPTION_VENDOR_ID 0x0AF0 |
| 97 | #define HUAWEI_VENDOR_ID 0x12D1 |
| 98 | #define AUDIOVOX_VENDOR_ID 0x0F3D |
| 99 | #define SIERRAWIRELESS_VENDOR_ID 0x1199 |
| 100 | #define NOVATELWIRELESS_VENDOR_ID 0x1410 |
Matthias Urlichs | 58cfe91 | 2005-05-23 17:00:48 -0700 | [diff] [blame] | 101 | |
Matthias Urlichs | 14f76cc | 2006-06-02 11:48:56 +0200 | [diff] [blame] | 102 | #define OPTION_PRODUCT_OLD 0x5000 |
| 103 | #define OPTION_PRODUCT_FUSION 0x6000 |
| 104 | #define OPTION_PRODUCT_FUSION2 0x6300 |
| 105 | #define OPTION_PRODUCT_COBRA 0x6500 |
Matthias Urlichs | e37de9e | 2006-07-06 13:12:53 +0200 | [diff] [blame] | 106 | #define OPTION_PRODUCT_COBRA2 0x6600 |
Matthias Urlichs | 14f76cc | 2006-06-02 11:48:56 +0200 | [diff] [blame] | 107 | #define HUAWEI_PRODUCT_E600 0x1001 |
| 108 | #define AUDIOVOX_PRODUCT_AIRCARD 0x0112 |
| 109 | #define SIERRAWIRELESS_PRODUCT_MC8755 0x6802 |
| 110 | #define NOVATELWIRELESS_PRODUCT_U740 0x1400 |
Matthias Urlichs | ba460e4 | 2005-07-14 00:33:47 -0700 | [diff] [blame] | 111 | |
Matthias Urlichs | 58cfe91 | 2005-05-23 17:00:48 -0700 | [diff] [blame] | 112 | static struct usb_device_id option_ids[] = { |
| 113 | { USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_OLD) }, |
Matthias Urlichs | ba460e4 | 2005-07-14 00:33:47 -0700 | [diff] [blame] | 114 | { USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_FUSION) }, |
| 115 | { USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_FUSION2) }, |
Matthias Urlichs | 14f76cc | 2006-06-02 11:48:56 +0200 | [diff] [blame] | 116 | { USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_COBRA) }, |
Matthias Urlichs | e37de9e | 2006-07-06 13:12:53 +0200 | [diff] [blame] | 117 | { USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_COBRA2) }, |
Matthias Urlichs | b613738 | 2005-09-22 00:48:40 -0700 | [diff] [blame] | 118 | { USB_DEVICE(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E600) }, |
| 119 | { USB_DEVICE(AUDIOVOX_VENDOR_ID, AUDIOVOX_PRODUCT_AIRCARD) }, |
Matthias Urlichs | 14f76cc | 2006-06-02 11:48:56 +0200 | [diff] [blame] | 120 | { USB_DEVICE(SIERRAWIRELESS_VENDOR_ID, SIERRAWIRELESS_PRODUCT_MC8755) }, |
| 121 | { USB_DEVICE(NOVATELWIRELESS_VENDOR_ID,NOVATELWIRELESS_PRODUCT_U740) }, |
| 122 | { } /* Terminating entry */ |
| 123 | }; |
| 124 | |
| 125 | static struct usb_device_id option_ids1[] = { |
| 126 | { USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_OLD) }, |
| 127 | { USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_FUSION) }, |
| 128 | { USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_FUSION2) }, |
| 129 | { USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_COBRA) }, |
Matthias Urlichs | e37de9e | 2006-07-06 13:12:53 +0200 | [diff] [blame] | 130 | { USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_COBRA2) }, |
Matthias Urlichs | 14f76cc | 2006-06-02 11:48:56 +0200 | [diff] [blame] | 131 | { USB_DEVICE(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E600) }, |
| 132 | { USB_DEVICE(AUDIOVOX_VENDOR_ID, AUDIOVOX_PRODUCT_AIRCARD) }, |
| 133 | { USB_DEVICE(NOVATELWIRELESS_VENDOR_ID,NOVATELWIRELESS_PRODUCT_U740) }, |
| 134 | { } /* Terminating entry */ |
| 135 | }; |
| 136 | static struct usb_device_id option_ids3[] = { |
| 137 | { USB_DEVICE(SIERRAWIRELESS_VENDOR_ID, SIERRAWIRELESS_PRODUCT_MC8755) }, |
Matthias Urlichs | 58cfe91 | 2005-05-23 17:00:48 -0700 | [diff] [blame] | 138 | { } /* Terminating entry */ |
| 139 | }; |
| 140 | |
| 141 | MODULE_DEVICE_TABLE(usb, option_ids); |
| 142 | |
| 143 | static struct usb_driver option_driver = { |
Matthias Urlichs | 58cfe91 | 2005-05-23 17:00:48 -0700 | [diff] [blame] | 144 | .name = "option", |
| 145 | .probe = usb_serial_probe, |
| 146 | .disconnect = usb_serial_disconnect, |
| 147 | .id_table = option_ids, |
Greg Kroah-Hartman | ba9dc65 | 2005-11-16 13:41:28 -0800 | [diff] [blame] | 148 | .no_dynamic_id = 1, |
Matthias Urlichs | 58cfe91 | 2005-05-23 17:00:48 -0700 | [diff] [blame] | 149 | }; |
| 150 | |
Uwe Zeisberger | c30fe7f | 2006-03-24 18:23:14 +0100 | [diff] [blame] | 151 | /* The card has three separate interfaces, which the serial driver |
Matthias Urlichs | 58cfe91 | 2005-05-23 17:00:48 -0700 | [diff] [blame] | 152 | * recognizes separately, thus num_port=1. |
| 153 | */ |
Greg Kroah-Hartman | ea65370 | 2005-06-20 21:15:16 -0700 | [diff] [blame] | 154 | static struct usb_serial_driver option_3port_device = { |
Greg Kroah-Hartman | 18fcac3 | 2005-06-20 21:15:16 -0700 | [diff] [blame] | 155 | .driver = { |
| 156 | .owner = THIS_MODULE, |
Greg Kroah-Hartman | 269bda1 | 2005-06-20 21:15:16 -0700 | [diff] [blame] | 157 | .name = "option", |
Greg Kroah-Hartman | 18fcac3 | 2005-06-20 21:15:16 -0700 | [diff] [blame] | 158 | }, |
Matthias Urlichs | 14f76cc | 2006-06-02 11:48:56 +0200 | [diff] [blame] | 159 | .description = "GSM modem (3-port)", |
| 160 | .id_table = option_ids3, |
Matthias Urlichs | ba460e4 | 2005-07-14 00:33:47 -0700 | [diff] [blame] | 161 | .num_interrupt_in = NUM_DONT_CARE, |
| 162 | .num_bulk_in = NUM_DONT_CARE, |
| 163 | .num_bulk_out = NUM_DONT_CARE, |
Matthias Urlichs | 14f76cc | 2006-06-02 11:48:56 +0200 | [diff] [blame] | 164 | .num_ports = 3, |
| 165 | .open = option_open, |
| 166 | .close = option_close, |
| 167 | .write = option_write, |
| 168 | .write_room = option_write_room, |
| 169 | .chars_in_buffer = option_chars_in_buffer, |
| 170 | .throttle = option_rx_throttle, |
| 171 | .unthrottle = option_rx_unthrottle, |
| 172 | .set_termios = option_set_termios, |
| 173 | .break_ctl = option_break_ctl, |
| 174 | .tiocmget = option_tiocmget, |
| 175 | .tiocmset = option_tiocmset, |
| 176 | .attach = option_startup, |
| 177 | .shutdown = option_shutdown, |
| 178 | .read_int_callback = option_instat_callback, |
| 179 | }; |
| 180 | |
| 181 | static struct usb_serial_driver option_1port_device = { |
| 182 | .driver = { |
| 183 | .owner = THIS_MODULE, |
| 184 | .name = "option", |
| 185 | }, |
| 186 | .description = "GSM modem (1-port)", |
| 187 | .id_table = option_ids1, |
| 188 | .num_interrupt_in = NUM_DONT_CARE, |
| 189 | .num_bulk_in = NUM_DONT_CARE, |
| 190 | .num_bulk_out = NUM_DONT_CARE, |
| 191 | .num_ports = 1, |
Matthias Urlichs | ba460e4 | 2005-07-14 00:33:47 -0700 | [diff] [blame] | 192 | .open = option_open, |
| 193 | .close = option_close, |
| 194 | .write = option_write, |
| 195 | .write_room = option_write_room, |
| 196 | .chars_in_buffer = option_chars_in_buffer, |
| 197 | .throttle = option_rx_throttle, |
| 198 | .unthrottle = option_rx_unthrottle, |
| 199 | .ioctl = option_ioctl, |
| 200 | .set_termios = option_set_termios, |
| 201 | .break_ctl = option_break_ctl, |
| 202 | .tiocmget = option_tiocmget, |
| 203 | .tiocmset = option_tiocmset, |
| 204 | .attach = option_startup, |
| 205 | .shutdown = option_shutdown, |
| 206 | .read_int_callback = option_instat_callback, |
Matthias Urlichs | 58cfe91 | 2005-05-23 17:00:48 -0700 | [diff] [blame] | 207 | }; |
| 208 | |
Matthias Urlichs | ba460e4 | 2005-07-14 00:33:47 -0700 | [diff] [blame] | 209 | #ifdef CONFIG_USB_DEBUG |
Matthias Urlichs | 58cfe91 | 2005-05-23 17:00:48 -0700 | [diff] [blame] | 210 | static int debug; |
Matthias Urlichs | ba460e4 | 2005-07-14 00:33:47 -0700 | [diff] [blame] | 211 | #else |
| 212 | #define debug 0 |
| 213 | #endif |
| 214 | |
Matthias Urlichs | 58cfe91 | 2005-05-23 17:00:48 -0700 | [diff] [blame] | 215 | /* per port private data */ |
| 216 | |
Matthias Urlichs | ba460e4 | 2005-07-14 00:33:47 -0700 | [diff] [blame] | 217 | #define N_IN_URB 4 |
| 218 | #define N_OUT_URB 1 |
Matthias Urlichs | b27c73d | 2005-09-22 00:49:33 -0700 | [diff] [blame] | 219 | #define IN_BUFLEN 4096 |
Matthias Urlichs | ba460e4 | 2005-07-14 00:33:47 -0700 | [diff] [blame] | 220 | #define OUT_BUFLEN 128 |
Matthias Urlichs | 58cfe91 | 2005-05-23 17:00:48 -0700 | [diff] [blame] | 221 | |
| 222 | struct option_port_private { |
| 223 | /* Input endpoints and buffer for this port */ |
Matthias Urlichs | ba460e4 | 2005-07-14 00:33:47 -0700 | [diff] [blame] | 224 | struct urb *in_urbs[N_IN_URB]; |
| 225 | char in_buffer[N_IN_URB][IN_BUFLEN]; |
Matthias Urlichs | 58cfe91 | 2005-05-23 17:00:48 -0700 | [diff] [blame] | 226 | /* Output endpoints and buffer for this port */ |
Matthias Urlichs | ba460e4 | 2005-07-14 00:33:47 -0700 | [diff] [blame] | 227 | struct urb *out_urbs[N_OUT_URB]; |
| 228 | char out_buffer[N_OUT_URB][OUT_BUFLEN]; |
Matthias Urlichs | 58cfe91 | 2005-05-23 17:00:48 -0700 | [diff] [blame] | 229 | |
| 230 | /* Settings for the port */ |
Matthias Urlichs | ba460e4 | 2005-07-14 00:33:47 -0700 | [diff] [blame] | 231 | int rts_state; /* Handshaking pins (outputs) */ |
| 232 | int dtr_state; |
| 233 | int cts_state; /* Handshaking pins (inputs) */ |
| 234 | int dsr_state; |
| 235 | int dcd_state; |
| 236 | int ri_state; |
Matthias Urlichs | 58cfe91 | 2005-05-23 17:00:48 -0700 | [diff] [blame] | 237 | |
Matthias Urlichs | ba460e4 | 2005-07-14 00:33:47 -0700 | [diff] [blame] | 238 | unsigned long tx_start_time[N_OUT_URB]; |
Matthias Urlichs | 58cfe91 | 2005-05-23 17:00:48 -0700 | [diff] [blame] | 239 | }; |
| 240 | |
Matthias Urlichs | 58cfe91 | 2005-05-23 17:00:48 -0700 | [diff] [blame] | 241 | /* Functions used by new usb-serial code. */ |
Andrew Morton | 7bb75ae | 2005-07-27 01:08:30 -0700 | [diff] [blame] | 242 | static int __init option_init(void) |
Matthias Urlichs | 58cfe91 | 2005-05-23 17:00:48 -0700 | [diff] [blame] | 243 | { |
| 244 | int retval; |
Matthias Urlichs | 14f76cc | 2006-06-02 11:48:56 +0200 | [diff] [blame] | 245 | retval = usb_serial_register(&option_1port_device); |
| 246 | if (retval) |
| 247 | goto failed_1port_device_register; |
Matthias Urlichs | 58cfe91 | 2005-05-23 17:00:48 -0700 | [diff] [blame] | 248 | retval = usb_serial_register(&option_3port_device); |
| 249 | if (retval) |
| 250 | goto failed_3port_device_register; |
| 251 | retval = usb_register(&option_driver); |
| 252 | if (retval) |
| 253 | goto failed_driver_register; |
| 254 | |
| 255 | info(DRIVER_DESC ": " DRIVER_VERSION); |
| 256 | |
| 257 | return 0; |
| 258 | |
| 259 | failed_driver_register: |
| 260 | usb_serial_deregister (&option_3port_device); |
| 261 | failed_3port_device_register: |
Matthias Urlichs | 14f76cc | 2006-06-02 11:48:56 +0200 | [diff] [blame] | 262 | usb_serial_deregister (&option_1port_device); |
| 263 | failed_1port_device_register: |
Matthias Urlichs | 58cfe91 | 2005-05-23 17:00:48 -0700 | [diff] [blame] | 264 | return retval; |
| 265 | } |
| 266 | |
Andrew Morton | 7bb75ae | 2005-07-27 01:08:30 -0700 | [diff] [blame] | 267 | static void __exit option_exit(void) |
Matthias Urlichs | 58cfe91 | 2005-05-23 17:00:48 -0700 | [diff] [blame] | 268 | { |
| 269 | usb_deregister (&option_driver); |
| 270 | usb_serial_deregister (&option_3port_device); |
Matthias Urlichs | 14f76cc | 2006-06-02 11:48:56 +0200 | [diff] [blame] | 271 | usb_serial_deregister (&option_1port_device); |
Matthias Urlichs | 58cfe91 | 2005-05-23 17:00:48 -0700 | [diff] [blame] | 272 | } |
| 273 | |
| 274 | module_init(option_init); |
| 275 | module_exit(option_exit); |
| 276 | |
Andrew Morton | 7bb75ae | 2005-07-27 01:08:30 -0700 | [diff] [blame] | 277 | static void option_rx_throttle(struct usb_serial_port *port) |
Matthias Urlichs | 58cfe91 | 2005-05-23 17:00:48 -0700 | [diff] [blame] | 278 | { |
| 279 | dbg("%s", __FUNCTION__); |
| 280 | } |
| 281 | |
Andrew Morton | 7bb75ae | 2005-07-27 01:08:30 -0700 | [diff] [blame] | 282 | static void option_rx_unthrottle(struct usb_serial_port *port) |
Matthias Urlichs | 58cfe91 | 2005-05-23 17:00:48 -0700 | [diff] [blame] | 283 | { |
| 284 | dbg("%s", __FUNCTION__); |
| 285 | } |
| 286 | |
Andrew Morton | 7bb75ae | 2005-07-27 01:08:30 -0700 | [diff] [blame] | 287 | 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] | 288 | { |
| 289 | /* Unfortunately, I don't know how to send a break */ |
Matthias Urlichs | ba460e4 | 2005-07-14 00:33:47 -0700 | [diff] [blame] | 290 | dbg("%s", __FUNCTION__); |
Matthias Urlichs | 58cfe91 | 2005-05-23 17:00:48 -0700 | [diff] [blame] | 291 | } |
| 292 | |
Andrew Morton | 7bb75ae | 2005-07-27 01:08:30 -0700 | [diff] [blame] | 293 | static void option_set_termios(struct usb_serial_port *port, |
| 294 | struct termios *old_termios) |
Matthias Urlichs | 58cfe91 | 2005-05-23 17:00:48 -0700 | [diff] [blame] | 295 | { |
| 296 | dbg("%s", __FUNCTION__); |
| 297 | |
| 298 | option_send_setup(port); |
| 299 | } |
| 300 | |
Andrew Morton | 7bb75ae | 2005-07-27 01:08:30 -0700 | [diff] [blame] | 301 | static int option_tiocmget(struct usb_serial_port *port, struct file *file) |
Matthias Urlichs | 58cfe91 | 2005-05-23 17:00:48 -0700 | [diff] [blame] | 302 | { |
Matthias Urlichs | ba460e4 | 2005-07-14 00:33:47 -0700 | [diff] [blame] | 303 | unsigned int value; |
| 304 | struct option_port_private *portdata; |
Matthias Urlichs | 58cfe91 | 2005-05-23 17:00:48 -0700 | [diff] [blame] | 305 | |
| 306 | portdata = usb_get_serial_port_data(port); |
| 307 | |
| 308 | value = ((portdata->rts_state) ? TIOCM_RTS : 0) | |
| 309 | ((portdata->dtr_state) ? TIOCM_DTR : 0) | |
| 310 | ((portdata->cts_state) ? TIOCM_CTS : 0) | |
| 311 | ((portdata->dsr_state) ? TIOCM_DSR : 0) | |
| 312 | ((portdata->dcd_state) ? TIOCM_CAR : 0) | |
| 313 | ((portdata->ri_state) ? TIOCM_RNG : 0); |
| 314 | |
| 315 | return value; |
| 316 | } |
| 317 | |
Andrew Morton | 7bb75ae | 2005-07-27 01:08:30 -0700 | [diff] [blame] | 318 | static int option_tiocmset(struct usb_serial_port *port, struct file *file, |
| 319 | unsigned int set, unsigned int clear) |
Matthias Urlichs | 58cfe91 | 2005-05-23 17:00:48 -0700 | [diff] [blame] | 320 | { |
Matthias Urlichs | ba460e4 | 2005-07-14 00:33:47 -0700 | [diff] [blame] | 321 | struct option_port_private *portdata; |
Matthias Urlichs | 58cfe91 | 2005-05-23 17:00:48 -0700 | [diff] [blame] | 322 | |
| 323 | portdata = usb_get_serial_port_data(port); |
| 324 | |
| 325 | if (set & TIOCM_RTS) |
| 326 | portdata->rts_state = 1; |
| 327 | if (set & TIOCM_DTR) |
| 328 | portdata->dtr_state = 1; |
| 329 | |
| 330 | if (clear & TIOCM_RTS) |
| 331 | portdata->rts_state = 0; |
| 332 | if (clear & TIOCM_DTR) |
| 333 | portdata->dtr_state = 0; |
| 334 | return option_send_setup(port); |
| 335 | } |
| 336 | |
Andrew Morton | 7bb75ae | 2005-07-27 01:08:30 -0700 | [diff] [blame] | 337 | static int option_ioctl(struct usb_serial_port *port, struct file *file, |
| 338 | unsigned int cmd, unsigned long arg) |
Matthias Urlichs | 58cfe91 | 2005-05-23 17:00:48 -0700 | [diff] [blame] | 339 | { |
| 340 | return -ENOIOCTLCMD; |
| 341 | } |
| 342 | |
| 343 | /* Write */ |
Andrew Morton | 7bb75ae | 2005-07-27 01:08:30 -0700 | [diff] [blame] | 344 | static int option_write(struct usb_serial_port *port, |
| 345 | const unsigned char *buf, int count) |
Matthias Urlichs | 58cfe91 | 2005-05-23 17:00:48 -0700 | [diff] [blame] | 346 | { |
Matthias Urlichs | ba460e4 | 2005-07-14 00:33:47 -0700 | [diff] [blame] | 347 | struct option_port_private *portdata; |
| 348 | int i; |
| 349 | int left, todo; |
| 350 | struct urb *this_urb = NULL; /* spurious */ |
| 351 | int err; |
Matthias Urlichs | 58cfe91 | 2005-05-23 17:00:48 -0700 | [diff] [blame] | 352 | |
| 353 | portdata = usb_get_serial_port_data(port); |
| 354 | |
| 355 | dbg("%s: write (%d chars)", __FUNCTION__, count); |
| 356 | |
Matthias Urlichs | 58cfe91 | 2005-05-23 17:00:48 -0700 | [diff] [blame] | 357 | i = 0; |
| 358 | left = count; |
Matthias Urlichs | ba460e4 | 2005-07-14 00:33:47 -0700 | [diff] [blame] | 359 | for (i=0; left > 0 && i < N_OUT_URB; i++) { |
Matthias Urlichs | 58cfe91 | 2005-05-23 17:00:48 -0700 | [diff] [blame] | 360 | todo = left; |
| 361 | if (todo > OUT_BUFLEN) |
| 362 | todo = OUT_BUFLEN; |
| 363 | |
Matthias Urlichs | ba460e4 | 2005-07-14 00:33:47 -0700 | [diff] [blame] | 364 | this_urb = portdata->out_urbs[i]; |
| 365 | if (this_urb->status == -EINPROGRESS) { |
Andrew Morton | 7bb75ae | 2005-07-27 01:08:30 -0700 | [diff] [blame] | 366 | if (time_before(jiffies, |
| 367 | portdata->tx_start_time[i] + 10 * HZ)) |
Matthias Urlichs | 58cfe91 | 2005-05-23 17:00:48 -0700 | [diff] [blame] | 368 | continue; |
Matthias Urlichs | 58cfe91 | 2005-05-23 17:00:48 -0700 | [diff] [blame] | 369 | usb_unlink_urb(this_urb); |
Matthias Urlichs | ba460e4 | 2005-07-14 00:33:47 -0700 | [diff] [blame] | 370 | continue; |
Matthias Urlichs | 58cfe91 | 2005-05-23 17:00:48 -0700 | [diff] [blame] | 371 | } |
Matthias Urlichs | ba460e4 | 2005-07-14 00:33:47 -0700 | [diff] [blame] | 372 | if (this_urb->status != 0) |
Andrew Morton | 7bb75ae | 2005-07-27 01:08:30 -0700 | [diff] [blame] | 373 | dbg("usb_write %p failed (err=%d)", |
| 374 | this_urb, this_urb->status); |
Matthias Urlichs | 58cfe91 | 2005-05-23 17:00:48 -0700 | [diff] [blame] | 375 | |
Andrew Morton | 7bb75ae | 2005-07-27 01:08:30 -0700 | [diff] [blame] | 376 | dbg("%s: endpoint %d buf %d", __FUNCTION__, |
| 377 | usb_pipeendpoint(this_urb->pipe), i); |
Matthias Urlichs | 58cfe91 | 2005-05-23 17:00:48 -0700 | [diff] [blame] | 378 | |
Matthias Urlichs | ba460e4 | 2005-07-14 00:33:47 -0700 | [diff] [blame] | 379 | /* send the data */ |
Matthias Urlichs | 58cfe91 | 2005-05-23 17:00:48 -0700 | [diff] [blame] | 380 | memcpy (this_urb->transfer_buffer, buf, todo); |
Matthias Urlichs | 58cfe91 | 2005-05-23 17:00:48 -0700 | [diff] [blame] | 381 | this_urb->transfer_buffer_length = todo; |
| 382 | |
Matthias Urlichs | 58cfe91 | 2005-05-23 17:00:48 -0700 | [diff] [blame] | 383 | this_urb->dev = port->serial->dev; |
| 384 | err = usb_submit_urb(this_urb, GFP_ATOMIC); |
| 385 | if (err) { |
Andrew Morton | 7bb75ae | 2005-07-27 01:08:30 -0700 | [diff] [blame] | 386 | dbg("usb_submit_urb %p (write bulk) failed " |
| 387 | "(%d, has %d)", this_urb, |
| 388 | err, this_urb->status); |
Matthias Urlichs | 58cfe91 | 2005-05-23 17:00:48 -0700 | [diff] [blame] | 389 | continue; |
| 390 | } |
| 391 | portdata->tx_start_time[i] = jiffies; |
| 392 | buf += todo; |
| 393 | left -= todo; |
| 394 | } |
| 395 | |
| 396 | count -= left; |
Matthias Urlichs | 58cfe91 | 2005-05-23 17:00:48 -0700 | [diff] [blame] | 397 | dbg("%s: wrote (did %d)", __FUNCTION__, count); |
| 398 | return count; |
| 399 | } |
| 400 | |
Andrew Morton | 7bb75ae | 2005-07-27 01:08:30 -0700 | [diff] [blame] | 401 | static void option_indat_callback(struct urb *urb, struct pt_regs *regs) |
Matthias Urlichs | 58cfe91 | 2005-05-23 17:00:48 -0700 | [diff] [blame] | 402 | { |
Alan Cox | 33f0f88 | 2006-01-09 20:54:13 -0800 | [diff] [blame] | 403 | int err; |
Matthias Urlichs | 58cfe91 | 2005-05-23 17:00:48 -0700 | [diff] [blame] | 404 | int endpoint; |
| 405 | struct usb_serial_port *port; |
| 406 | struct tty_struct *tty; |
| 407 | unsigned char *data = urb->transfer_buffer; |
| 408 | |
| 409 | dbg("%s: %p", __FUNCTION__, urb); |
| 410 | |
| 411 | endpoint = usb_pipeendpoint(urb->pipe); |
| 412 | port = (struct usb_serial_port *) urb->context; |
| 413 | |
| 414 | if (urb->status) { |
| 415 | dbg("%s: nonzero status: %d on endpoint %02x.", |
| 416 | __FUNCTION__, urb->status, endpoint); |
| 417 | } else { |
| 418 | tty = port->tty; |
| 419 | if (urb->actual_length) { |
Alan Cox | 33f0f88 | 2006-01-09 20:54:13 -0800 | [diff] [blame] | 420 | tty_buffer_request_room(tty, urb->actual_length); |
| 421 | tty_insert_flip_string(tty, data, urb->actual_length); |
Matthias Urlichs | 58cfe91 | 2005-05-23 17:00:48 -0700 | [diff] [blame] | 422 | tty_flip_buffer_push(tty); |
| 423 | } else { |
| 424 | dbg("%s: empty read urb received", __FUNCTION__); |
| 425 | } |
| 426 | |
| 427 | /* Resubmit urb so we continue receiving */ |
| 428 | if (port->open_count && urb->status != -ESHUTDOWN) { |
| 429 | err = usb_submit_urb(urb, GFP_ATOMIC); |
| 430 | if (err) |
Andrew Morton | 7bb75ae | 2005-07-27 01:08:30 -0700 | [diff] [blame] | 431 | printk(KERN_ERR "%s: resubmit read urb failed. " |
| 432 | "(%d)", __FUNCTION__, err); |
Matthias Urlichs | 58cfe91 | 2005-05-23 17:00:48 -0700 | [diff] [blame] | 433 | } |
| 434 | } |
| 435 | return; |
| 436 | } |
| 437 | |
Andrew Morton | 7bb75ae | 2005-07-27 01:08:30 -0700 | [diff] [blame] | 438 | static void option_outdat_callback(struct urb *urb, struct pt_regs *regs) |
Matthias Urlichs | 58cfe91 | 2005-05-23 17:00:48 -0700 | [diff] [blame] | 439 | { |
| 440 | struct usb_serial_port *port; |
| 441 | |
| 442 | dbg("%s", __FUNCTION__); |
| 443 | |
| 444 | port = (struct usb_serial_port *) urb->context; |
| 445 | |
Pete Zaitcev | cf2c748 | 2006-05-22 21:58:49 -0700 | [diff] [blame] | 446 | usb_serial_port_softint(port); |
Matthias Urlichs | 58cfe91 | 2005-05-23 17:00:48 -0700 | [diff] [blame] | 447 | } |
| 448 | |
Andrew Morton | 7bb75ae | 2005-07-27 01:08:30 -0700 | [diff] [blame] | 449 | static void option_instat_callback(struct urb *urb, struct pt_regs *regs) |
Matthias Urlichs | 58cfe91 | 2005-05-23 17:00:48 -0700 | [diff] [blame] | 450 | { |
| 451 | int err; |
| 452 | struct usb_serial_port *port = (struct usb_serial_port *) urb->context; |
| 453 | struct option_port_private *portdata = usb_get_serial_port_data(port); |
| 454 | struct usb_serial *serial = port->serial; |
| 455 | |
| 456 | dbg("%s", __FUNCTION__); |
| 457 | dbg("%s: urb %p port %p has data %p", __FUNCTION__,urb,port,portdata); |
| 458 | |
| 459 | if (urb->status == 0) { |
| 460 | struct usb_ctrlrequest *req_pkt = |
| 461 | (struct usb_ctrlrequest *)urb->transfer_buffer; |
| 462 | |
| 463 | if (!req_pkt) { |
| 464 | dbg("%s: NULL req_pkt\n", __FUNCTION__); |
| 465 | return; |
| 466 | } |
Andrew Morton | 7bb75ae | 2005-07-27 01:08:30 -0700 | [diff] [blame] | 467 | if ((req_pkt->bRequestType == 0xA1) && |
| 468 | (req_pkt->bRequest == 0x20)) { |
Matthias Urlichs | 58cfe91 | 2005-05-23 17:00:48 -0700 | [diff] [blame] | 469 | int old_dcd_state; |
| 470 | unsigned char signals = *((unsigned char *) |
Andrew Morton | 7bb75ae | 2005-07-27 01:08:30 -0700 | [diff] [blame] | 471 | urb->transfer_buffer + |
| 472 | sizeof(struct usb_ctrlrequest)); |
Matthias Urlichs | 58cfe91 | 2005-05-23 17:00:48 -0700 | [diff] [blame] | 473 | |
| 474 | dbg("%s: signal x%x", __FUNCTION__, signals); |
| 475 | |
| 476 | old_dcd_state = portdata->dcd_state; |
| 477 | portdata->cts_state = 1; |
| 478 | portdata->dcd_state = ((signals & 0x01) ? 1 : 0); |
| 479 | portdata->dsr_state = ((signals & 0x02) ? 1 : 0); |
| 480 | portdata->ri_state = ((signals & 0x08) ? 1 : 0); |
| 481 | |
Andrew Morton | 7bb75ae | 2005-07-27 01:08:30 -0700 | [diff] [blame] | 482 | if (port->tty && !C_CLOCAL(port->tty) && |
| 483 | old_dcd_state && !portdata->dcd_state) |
Matthias Urlichs | 58cfe91 | 2005-05-23 17:00:48 -0700 | [diff] [blame] | 484 | tty_hangup(port->tty); |
Andrew Morton | 7bb75ae | 2005-07-27 01:08:30 -0700 | [diff] [blame] | 485 | } else { |
| 486 | dbg("%s: type %x req %x", __FUNCTION__, |
| 487 | req_pkt->bRequestType,req_pkt->bRequest); |
| 488 | } |
Matthias Urlichs | 58cfe91 | 2005-05-23 17:00:48 -0700 | [diff] [blame] | 489 | } else |
| 490 | dbg("%s: error %d", __FUNCTION__, urb->status); |
| 491 | |
| 492 | /* Resubmit urb so we continue receiving IRQ data */ |
| 493 | if (urb->status != -ESHUTDOWN) { |
| 494 | urb->dev = serial->dev; |
| 495 | err = usb_submit_urb(urb, GFP_ATOMIC); |
| 496 | if (err) |
Andrew Morton | 7bb75ae | 2005-07-27 01:08:30 -0700 | [diff] [blame] | 497 | dbg("%s: resubmit intr urb failed. (%d)", |
| 498 | __FUNCTION__, err); |
Matthias Urlichs | 58cfe91 | 2005-05-23 17:00:48 -0700 | [diff] [blame] | 499 | } |
| 500 | } |
| 501 | |
Andrew Morton | 7bb75ae | 2005-07-27 01:08:30 -0700 | [diff] [blame] | 502 | static int option_write_room(struct usb_serial_port *port) |
Matthias Urlichs | 58cfe91 | 2005-05-23 17:00:48 -0700 | [diff] [blame] | 503 | { |
| 504 | struct option_port_private *portdata; |
| 505 | int i; |
| 506 | int data_len = 0; |
| 507 | struct urb *this_urb; |
| 508 | |
| 509 | portdata = usb_get_serial_port_data(port); |
| 510 | |
Matthias Urlichs | ba460e4 | 2005-07-14 00:33:47 -0700 | [diff] [blame] | 511 | for (i=0; i < N_OUT_URB; i++) { |
Matthias Urlichs | 58cfe91 | 2005-05-23 17:00:48 -0700 | [diff] [blame] | 512 | this_urb = portdata->out_urbs[i]; |
| 513 | if (this_urb && this_urb->status != -EINPROGRESS) |
| 514 | data_len += OUT_BUFLEN; |
Matthias Urlichs | ba460e4 | 2005-07-14 00:33:47 -0700 | [diff] [blame] | 515 | } |
Matthias Urlichs | 58cfe91 | 2005-05-23 17:00:48 -0700 | [diff] [blame] | 516 | |
| 517 | dbg("%s: %d", __FUNCTION__, data_len); |
| 518 | return data_len; |
| 519 | } |
| 520 | |
Andrew Morton | 7bb75ae | 2005-07-27 01:08:30 -0700 | [diff] [blame] | 521 | static int option_chars_in_buffer(struct usb_serial_port *port) |
Matthias Urlichs | 58cfe91 | 2005-05-23 17:00:48 -0700 | [diff] [blame] | 522 | { |
| 523 | struct option_port_private *portdata; |
| 524 | int i; |
| 525 | int data_len = 0; |
| 526 | struct urb *this_urb; |
| 527 | |
| 528 | portdata = usb_get_serial_port_data(port); |
| 529 | |
Matthias Urlichs | ba460e4 | 2005-07-14 00:33:47 -0700 | [diff] [blame] | 530 | for (i=0; i < N_OUT_URB; i++) { |
Matthias Urlichs | 58cfe91 | 2005-05-23 17:00:48 -0700 | [diff] [blame] | 531 | this_urb = portdata->out_urbs[i]; |
| 532 | if (this_urb && this_urb->status == -EINPROGRESS) |
| 533 | data_len += this_urb->transfer_buffer_length; |
Matthias Urlichs | ba460e4 | 2005-07-14 00:33:47 -0700 | [diff] [blame] | 534 | } |
Matthias Urlichs | 58cfe91 | 2005-05-23 17:00:48 -0700 | [diff] [blame] | 535 | dbg("%s: %d", __FUNCTION__, data_len); |
| 536 | return data_len; |
| 537 | } |
| 538 | |
Andrew Morton | 7bb75ae | 2005-07-27 01:08:30 -0700 | [diff] [blame] | 539 | static int option_open(struct usb_serial_port *port, struct file *filp) |
Matthias Urlichs | 58cfe91 | 2005-05-23 17:00:48 -0700 | [diff] [blame] | 540 | { |
Matthias Urlichs | ba460e4 | 2005-07-14 00:33:47 -0700 | [diff] [blame] | 541 | struct option_port_private *portdata; |
| 542 | struct usb_serial *serial = port->serial; |
| 543 | int i, err; |
| 544 | struct urb *urb; |
Matthias Urlichs | 58cfe91 | 2005-05-23 17:00:48 -0700 | [diff] [blame] | 545 | |
| 546 | portdata = usb_get_serial_port_data(port); |
| 547 | |
| 548 | dbg("%s", __FUNCTION__); |
| 549 | |
| 550 | /* Set some sane defaults */ |
| 551 | portdata->rts_state = 1; |
| 552 | portdata->dtr_state = 1; |
| 553 | |
| 554 | /* Reset low level data toggle and start reading from endpoints */ |
| 555 | for (i = 0; i < N_IN_URB; i++) { |
| 556 | urb = portdata->in_urbs[i]; |
| 557 | if (! urb) |
| 558 | continue; |
| 559 | if (urb->dev != serial->dev) { |
Andrew Morton | 7bb75ae | 2005-07-27 01:08:30 -0700 | [diff] [blame] | 560 | dbg("%s: dev %p != %p", __FUNCTION__, |
| 561 | urb->dev, serial->dev); |
Matthias Urlichs | 58cfe91 | 2005-05-23 17:00:48 -0700 | [diff] [blame] | 562 | continue; |
| 563 | } |
| 564 | |
Andrew Morton | 7bb75ae | 2005-07-27 01:08:30 -0700 | [diff] [blame] | 565 | /* |
| 566 | * make sure endpoint data toggle is synchronized with the |
| 567 | * device |
| 568 | */ |
Matthias Urlichs | 58cfe91 | 2005-05-23 17:00:48 -0700 | [diff] [blame] | 569 | usb_clear_halt(urb->dev, urb->pipe); |
| 570 | |
| 571 | err = usb_submit_urb(urb, GFP_KERNEL); |
| 572 | if (err) { |
Andrew Morton | 7bb75ae | 2005-07-27 01:08:30 -0700 | [diff] [blame] | 573 | dbg("%s: submit urb %d failed (%d) %d", |
| 574 | __FUNCTION__, i, err, |
Matthias Urlichs | 58cfe91 | 2005-05-23 17:00:48 -0700 | [diff] [blame] | 575 | urb->transfer_buffer_length); |
| 576 | } |
| 577 | } |
| 578 | |
| 579 | /* Reset low level data toggle on out endpoints */ |
| 580 | for (i = 0; i < N_OUT_URB; i++) { |
| 581 | urb = portdata->out_urbs[i]; |
| 582 | if (! urb) |
| 583 | continue; |
| 584 | urb->dev = serial->dev; |
Andrew Morton | 7bb75ae | 2005-07-27 01:08:30 -0700 | [diff] [blame] | 585 | /* usb_settoggle(urb->dev, usb_pipeendpoint(urb->pipe), |
| 586 | usb_pipeout(urb->pipe), 0); */ |
Matthias Urlichs | 58cfe91 | 2005-05-23 17:00:48 -0700 | [diff] [blame] | 587 | } |
| 588 | |
| 589 | port->tty->low_latency = 1; |
| 590 | |
| 591 | option_send_setup(port); |
| 592 | |
| 593 | return (0); |
| 594 | } |
| 595 | |
Andrew Morton | 7bb75ae | 2005-07-27 01:08:30 -0700 | [diff] [blame] | 596 | static inline void stop_urb(struct urb *urb) |
Matthias Urlichs | 58cfe91 | 2005-05-23 17:00:48 -0700 | [diff] [blame] | 597 | { |
Greg Kroah-Hartman | 242cf67 | 2005-07-29 16:11:07 -0400 | [diff] [blame] | 598 | if (urb && urb->status == -EINPROGRESS) |
Matthias Urlichs | 58cfe91 | 2005-05-23 17:00:48 -0700 | [diff] [blame] | 599 | usb_kill_urb(urb); |
Matthias Urlichs | 58cfe91 | 2005-05-23 17:00:48 -0700 | [diff] [blame] | 600 | } |
| 601 | |
Andrew Morton | 7bb75ae | 2005-07-27 01:08:30 -0700 | [diff] [blame] | 602 | static void option_close(struct usb_serial_port *port, struct file *filp) |
Matthias Urlichs | 58cfe91 | 2005-05-23 17:00:48 -0700 | [diff] [blame] | 603 | { |
Matthias Urlichs | ba460e4 | 2005-07-14 00:33:47 -0700 | [diff] [blame] | 604 | int i; |
| 605 | struct usb_serial *serial = port->serial; |
| 606 | struct option_port_private *portdata; |
Matthias Urlichs | 58cfe91 | 2005-05-23 17:00:48 -0700 | [diff] [blame] | 607 | |
| 608 | dbg("%s", __FUNCTION__); |
| 609 | portdata = usb_get_serial_port_data(port); |
| 610 | |
| 611 | portdata->rts_state = 0; |
| 612 | portdata->dtr_state = 0; |
| 613 | |
| 614 | if (serial->dev) { |
| 615 | option_send_setup(port); |
| 616 | |
| 617 | /* Stop reading/writing urbs */ |
| 618 | for (i = 0; i < N_IN_URB; i++) |
| 619 | stop_urb(portdata->in_urbs[i]); |
| 620 | for (i = 0; i < N_OUT_URB; i++) |
| 621 | stop_urb(portdata->out_urbs[i]); |
| 622 | } |
| 623 | port->tty = NULL; |
| 624 | } |
| 625 | |
Matthias Urlichs | 58cfe91 | 2005-05-23 17:00:48 -0700 | [diff] [blame] | 626 | /* Helper functions used by option_setup_urbs */ |
Andrew Morton | 7bb75ae | 2005-07-27 01:08:30 -0700 | [diff] [blame] | 627 | static struct urb *option_setup_urb(struct usb_serial *serial, int endpoint, |
| 628 | int dir, void *ctx, char *buf, int len, |
| 629 | void (*callback)(struct urb *, struct pt_regs *regs)) |
Matthias Urlichs | 58cfe91 | 2005-05-23 17:00:48 -0700 | [diff] [blame] | 630 | { |
| 631 | struct urb *urb; |
| 632 | |
| 633 | if (endpoint == -1) |
| 634 | return NULL; /* endpoint not needed */ |
| 635 | |
| 636 | urb = usb_alloc_urb(0, GFP_KERNEL); /* No ISO */ |
| 637 | if (urb == NULL) { |
| 638 | dbg("%s: alloc for endpoint %d failed.", __FUNCTION__, endpoint); |
| 639 | return NULL; |
| 640 | } |
| 641 | |
| 642 | /* Fill URB using supplied data. */ |
| 643 | usb_fill_bulk_urb(urb, serial->dev, |
| 644 | usb_sndbulkpipe(serial->dev, endpoint) | dir, |
| 645 | buf, len, callback, ctx); |
| 646 | |
| 647 | return urb; |
| 648 | } |
| 649 | |
| 650 | /* Setup urbs */ |
Andrew Morton | 7bb75ae | 2005-07-27 01:08:30 -0700 | [diff] [blame] | 651 | static void option_setup_urbs(struct usb_serial *serial) |
Matthias Urlichs | 58cfe91 | 2005-05-23 17:00:48 -0700 | [diff] [blame] | 652 | { |
Matthias Urlichs | 14f76cc | 2006-06-02 11:48:56 +0200 | [diff] [blame] | 653 | int i,j; |
Matthias Urlichs | ba460e4 | 2005-07-14 00:33:47 -0700 | [diff] [blame] | 654 | struct usb_serial_port *port; |
| 655 | struct option_port_private *portdata; |
Matthias Urlichs | 58cfe91 | 2005-05-23 17:00:48 -0700 | [diff] [blame] | 656 | |
| 657 | dbg("%s", __FUNCTION__); |
| 658 | |
Matthias Urlichs | 14f76cc | 2006-06-02 11:48:56 +0200 | [diff] [blame] | 659 | |
| 660 | for (i = 0; i < serial->num_ports; i++) { |
| 661 | port = serial->port[i]; |
| 662 | portdata = usb_get_serial_port_data(port); |
Matthias Urlichs | 58cfe91 | 2005-05-23 17:00:48 -0700 | [diff] [blame] | 663 | |
| 664 | /* Do indat endpoints first */ |
Matthias Urlichs | 14f76cc | 2006-06-02 11:48:56 +0200 | [diff] [blame] | 665 | for (j = 0; j < N_IN_URB; ++j) { |
| 666 | portdata->in_urbs[j] = option_setup_urb (serial, |
| 667 | port->bulk_in_endpointAddress, USB_DIR_IN, port, |
| 668 | portdata->in_buffer[j], IN_BUFLEN, option_indat_callback); |
| 669 | } |
Matthias Urlichs | 58cfe91 | 2005-05-23 17:00:48 -0700 | [diff] [blame] | 670 | |
Matthias Urlichs | 14f76cc | 2006-06-02 11:48:56 +0200 | [diff] [blame] | 671 | /* outdat endpoints */ |
| 672 | for (j = 0; j < N_OUT_URB; ++j) { |
| 673 | portdata->out_urbs[j] = option_setup_urb (serial, |
| 674 | port->bulk_out_endpointAddress, USB_DIR_OUT, port, |
| 675 | portdata->out_buffer[j], OUT_BUFLEN, option_outdat_callback); |
| 676 | } |
Matthias Urlichs | 58cfe91 | 2005-05-23 17:00:48 -0700 | [diff] [blame] | 677 | } |
| 678 | } |
| 679 | |
Andrew Morton | 7bb75ae | 2005-07-27 01:08:30 -0700 | [diff] [blame] | 680 | static int option_send_setup(struct usb_serial_port *port) |
Matthias Urlichs | 58cfe91 | 2005-05-23 17:00:48 -0700 | [diff] [blame] | 681 | { |
| 682 | struct usb_serial *serial = port->serial; |
| 683 | struct option_port_private *portdata; |
| 684 | |
| 685 | dbg("%s", __FUNCTION__); |
| 686 | |
| 687 | portdata = usb_get_serial_port_data(port); |
| 688 | |
| 689 | if (port->tty) { |
| 690 | int val = 0; |
| 691 | if (portdata->dtr_state) |
| 692 | val |= 0x01; |
| 693 | if (portdata->rts_state) |
| 694 | val |= 0x02; |
| 695 | |
Andrew Morton | 7bb75ae | 2005-07-27 01:08:30 -0700 | [diff] [blame] | 696 | return usb_control_msg(serial->dev, |
| 697 | usb_rcvctrlpipe(serial->dev, 0), |
| 698 | 0x22,0x21,val,0,NULL,0,USB_CTRL_SET_TIMEOUT); |
Matthias Urlichs | 58cfe91 | 2005-05-23 17:00:48 -0700 | [diff] [blame] | 699 | } |
| 700 | |
| 701 | return 0; |
| 702 | } |
| 703 | |
Andrew Morton | 7bb75ae | 2005-07-27 01:08:30 -0700 | [diff] [blame] | 704 | static int option_startup(struct usb_serial *serial) |
Matthias Urlichs | 58cfe91 | 2005-05-23 17:00:48 -0700 | [diff] [blame] | 705 | { |
Matthias Urlichs | ba460e4 | 2005-07-14 00:33:47 -0700 | [diff] [blame] | 706 | int i, err; |
| 707 | struct usb_serial_port *port; |
| 708 | struct option_port_private *portdata; |
Matthias Urlichs | 58cfe91 | 2005-05-23 17:00:48 -0700 | [diff] [blame] | 709 | |
| 710 | dbg("%s", __FUNCTION__); |
| 711 | |
| 712 | /* Now setup per port private data */ |
| 713 | for (i = 0; i < serial->num_ports; i++) { |
| 714 | port = serial->port[i]; |
Eric Sesterhenn | 80b6ca4 | 2006-02-27 21:29:43 +0100 | [diff] [blame] | 715 | portdata = kzalloc(sizeof(*portdata), GFP_KERNEL); |
Matthias Urlichs | 58cfe91 | 2005-05-23 17:00:48 -0700 | [diff] [blame] | 716 | if (!portdata) { |
Andrew Morton | 7bb75ae | 2005-07-27 01:08:30 -0700 | [diff] [blame] | 717 | dbg("%s: kmalloc for option_port_private (%d) failed!.", |
| 718 | __FUNCTION__, i); |
Matthias Urlichs | 58cfe91 | 2005-05-23 17:00:48 -0700 | [diff] [blame] | 719 | return (1); |
| 720 | } |
Matthias Urlichs | 58cfe91 | 2005-05-23 17:00:48 -0700 | [diff] [blame] | 721 | |
| 722 | usb_set_serial_port_data(port, portdata); |
| 723 | |
| 724 | if (! port->interrupt_in_urb) |
| 725 | continue; |
| 726 | err = usb_submit_urb(port->interrupt_in_urb, GFP_KERNEL); |
| 727 | if (err) |
Andrew Morton | 7bb75ae | 2005-07-27 01:08:30 -0700 | [diff] [blame] | 728 | dbg("%s: submit irq_in urb failed %d", |
| 729 | __FUNCTION__, err); |
Matthias Urlichs | 58cfe91 | 2005-05-23 17:00:48 -0700 | [diff] [blame] | 730 | } |
| 731 | |
| 732 | option_setup_urbs(serial); |
| 733 | |
| 734 | return (0); |
| 735 | } |
| 736 | |
Andrew Morton | 7bb75ae | 2005-07-27 01:08:30 -0700 | [diff] [blame] | 737 | static void option_shutdown(struct usb_serial *serial) |
Matthias Urlichs | 58cfe91 | 2005-05-23 17:00:48 -0700 | [diff] [blame] | 738 | { |
Matthias Urlichs | ba460e4 | 2005-07-14 00:33:47 -0700 | [diff] [blame] | 739 | int i, j; |
| 740 | struct usb_serial_port *port; |
| 741 | struct option_port_private *portdata; |
Matthias Urlichs | 58cfe91 | 2005-05-23 17:00:48 -0700 | [diff] [blame] | 742 | |
| 743 | dbg("%s", __FUNCTION__); |
| 744 | |
| 745 | /* Stop reading/writing urbs */ |
| 746 | for (i = 0; i < serial->num_ports; ++i) { |
| 747 | port = serial->port[i]; |
| 748 | portdata = usb_get_serial_port_data(port); |
| 749 | for (j = 0; j < N_IN_URB; j++) |
| 750 | stop_urb(portdata->in_urbs[j]); |
| 751 | for (j = 0; j < N_OUT_URB; j++) |
| 752 | stop_urb(portdata->out_urbs[j]); |
| 753 | } |
| 754 | |
| 755 | /* Now free them */ |
| 756 | for (i = 0; i < serial->num_ports; ++i) { |
| 757 | port = serial->port[i]; |
| 758 | portdata = usb_get_serial_port_data(port); |
| 759 | |
| 760 | for (j = 0; j < N_IN_URB; j++) { |
| 761 | if (portdata->in_urbs[j]) { |
| 762 | usb_free_urb(portdata->in_urbs[j]); |
| 763 | portdata->in_urbs[j] = NULL; |
| 764 | } |
| 765 | } |
| 766 | for (j = 0; j < N_OUT_URB; j++) { |
| 767 | if (portdata->out_urbs[j]) { |
| 768 | usb_free_urb(portdata->out_urbs[j]); |
| 769 | portdata->out_urbs[j] = NULL; |
| 770 | } |
| 771 | } |
| 772 | } |
| 773 | |
| 774 | /* Now free per port private data */ |
| 775 | for (i = 0; i < serial->num_ports; i++) { |
| 776 | port = serial->port[i]; |
| 777 | kfree(usb_get_serial_port_data(port)); |
| 778 | } |
| 779 | } |
| 780 | |
| 781 | MODULE_AUTHOR(DRIVER_AUTHOR); |
| 782 | MODULE_DESCRIPTION(DRIVER_DESC); |
| 783 | MODULE_VERSION(DRIVER_VERSION); |
| 784 | MODULE_LICENSE("GPL"); |
| 785 | |
Matthias Urlichs | ba460e4 | 2005-07-14 00:33:47 -0700 | [diff] [blame] | 786 | #ifdef CONFIG_USB_DEBUG |
Matthias Urlichs | 58cfe91 | 2005-05-23 17:00:48 -0700 | [diff] [blame] | 787 | module_param(debug, bool, S_IRUGO | S_IWUSR); |
| 788 | MODULE_PARM_DESC(debug, "Debug messages"); |
Matthias Urlichs | ba460e4 | 2005-07-14 00:33:47 -0700 | [diff] [blame] | 789 | #endif |
Matthias Urlichs | 58cfe91 | 2005-05-23 17:00:48 -0700 | [diff] [blame] | 790 | |