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 | |
Matthias Urlichs | b3fdab5 | 2006-08-02 16:41:41 -0700 | [diff] [blame] | 12 | History: see the git log. |
Matthias Urlichs | ba460e4 | 2005-07-14 00:33:47 -0700 | [diff] [blame] | 13 | |
| 14 | Work sponsored by: Sigos GmbH, Germany <info@sigos.de> |
| 15 | |
Matthias Urlichs | 14f76cc | 2006-06-02 11:48:56 +0200 | [diff] [blame] | 16 | This driver exists because the "normal" serial driver doesn't work too well |
| 17 | with GSM modems. Issues: |
| 18 | - data loss -- one single Receive URB is not nearly enough |
Matthias Urlichs | 7c1c2f7 | 2006-07-20 04:56:00 +0200 | [diff] [blame^] | 19 | - nonstandard flow (Option devices) control |
Matthias Urlichs | 14f76cc | 2006-06-02 11:48:56 +0200 | [diff] [blame] | 20 | - controlling the baud rate doesn't make sense |
| 21 | |
| 22 | This driver is named "option" because the most common device it's |
| 23 | used for is a PC-Card (with an internal OHCI-USB interface, behind |
| 24 | which the GSM interface sits), made by Option Inc. |
| 25 | |
| 26 | Some of the "one port" devices actually exhibit multiple USB instances |
| 27 | on the USB bus. This is not a bug, these ports are used for different |
| 28 | device features. |
Matthias Urlichs | 58cfe91 | 2005-05-23 17:00:48 -0700 | [diff] [blame] | 29 | */ |
Matthias Urlichs | ba460e4 | 2005-07-14 00:33:47 -0700 | [diff] [blame] | 30 | |
Matthias Urlichs | e37de9e | 2006-07-06 13:12:53 +0200 | [diff] [blame] | 31 | #define DRIVER_VERSION "v0.7.1" |
Matthias Urlichs | 58cfe91 | 2005-05-23 17:00:48 -0700 | [diff] [blame] | 32 | #define DRIVER_AUTHOR "Matthias Urlichs <smurf@smurf.noris.de>" |
Matthias Urlichs | 14f76cc | 2006-06-02 11:48:56 +0200 | [diff] [blame] | 33 | #define DRIVER_DESC "USB Driver for GSM modems" |
Matthias Urlichs | 58cfe91 | 2005-05-23 17:00:48 -0700 | [diff] [blame] | 34 | |
Matthias Urlichs | 58cfe91 | 2005-05-23 17:00:48 -0700 | [diff] [blame] | 35 | #include <linux/kernel.h> |
| 36 | #include <linux/jiffies.h> |
| 37 | #include <linux/errno.h> |
| 38 | #include <linux/tty.h> |
| 39 | #include <linux/tty_flip.h> |
| 40 | #include <linux/module.h> |
| 41 | #include <linux/usb.h> |
Greg Kroah-Hartman | a969888 | 2006-07-11 21:22:58 -0700 | [diff] [blame] | 42 | #include <linux/usb/serial.h> |
Matthias Urlichs | 58cfe91 | 2005-05-23 17:00:48 -0700 | [diff] [blame] | 43 | |
| 44 | /* Function prototypes */ |
Andrew Morton | 7bb75ae | 2005-07-27 01:08:30 -0700 | [diff] [blame] | 45 | static int option_open(struct usb_serial_port *port, struct file *filp); |
| 46 | static void option_close(struct usb_serial_port *port, struct file *filp); |
| 47 | static int option_startup(struct usb_serial *serial); |
| 48 | static void option_shutdown(struct usb_serial *serial); |
| 49 | static void option_rx_throttle(struct usb_serial_port *port); |
| 50 | static void option_rx_unthrottle(struct usb_serial_port *port); |
| 51 | static int option_write_room(struct usb_serial_port *port); |
Matthias Urlichs | 58cfe91 | 2005-05-23 17:00:48 -0700 | [diff] [blame] | 52 | |
| 53 | static void option_instat_callback(struct urb *urb, struct pt_regs *regs); |
| 54 | |
Andrew Morton | 7bb75ae | 2005-07-27 01:08:30 -0700 | [diff] [blame] | 55 | static int option_write(struct usb_serial_port *port, |
| 56 | const unsigned char *buf, int count); |
Matthias Urlichs | 58cfe91 | 2005-05-23 17:00:48 -0700 | [diff] [blame] | 57 | |
Andrew Morton | 7bb75ae | 2005-07-27 01:08:30 -0700 | [diff] [blame] | 58 | static int option_chars_in_buffer(struct usb_serial_port *port); |
| 59 | static int option_ioctl(struct usb_serial_port *port, struct file *file, |
| 60 | unsigned int cmd, unsigned long arg); |
| 61 | static void option_set_termios(struct usb_serial_port *port, |
| 62 | struct termios *old); |
| 63 | static void option_break_ctl(struct usb_serial_port *port, int break_state); |
| 64 | static int option_tiocmget(struct usb_serial_port *port, struct file *file); |
| 65 | static int option_tiocmset(struct usb_serial_port *port, struct file *file, |
| 66 | unsigned int set, unsigned int clear); |
| 67 | static int option_send_setup(struct usb_serial_port *port); |
Matthias Urlichs | 58cfe91 | 2005-05-23 17:00:48 -0700 | [diff] [blame] | 68 | |
| 69 | /* Vendor and product IDs */ |
Matthias Urlichs | 14f76cc | 2006-06-02 11:48:56 +0200 | [diff] [blame] | 70 | #define OPTION_VENDOR_ID 0x0AF0 |
| 71 | #define HUAWEI_VENDOR_ID 0x12D1 |
| 72 | #define AUDIOVOX_VENDOR_ID 0x0F3D |
Matthias Urlichs | 14f76cc | 2006-06-02 11:48:56 +0200 | [diff] [blame] | 73 | #define NOVATELWIRELESS_VENDOR_ID 0x1410 |
Matthias Urlichs | 31fcbb7 | 2006-07-12 08:35:29 +0200 | [diff] [blame] | 74 | #define ANYDATA_VENDOR_ID 0x16d5 |
Matthias Urlichs | 58cfe91 | 2005-05-23 17:00:48 -0700 | [diff] [blame] | 75 | |
Matthias Urlichs | 14f76cc | 2006-06-02 11:48:56 +0200 | [diff] [blame] | 76 | #define OPTION_PRODUCT_OLD 0x5000 |
| 77 | #define OPTION_PRODUCT_FUSION 0x6000 |
| 78 | #define OPTION_PRODUCT_FUSION2 0x6300 |
| 79 | #define OPTION_PRODUCT_COBRA 0x6500 |
Matthias Urlichs | e37de9e | 2006-07-06 13:12:53 +0200 | [diff] [blame] | 80 | #define OPTION_PRODUCT_COBRA2 0x6600 |
Matthias Urlichs | 14f76cc | 2006-06-02 11:48:56 +0200 | [diff] [blame] | 81 | #define HUAWEI_PRODUCT_E600 0x1001 |
| 82 | #define AUDIOVOX_PRODUCT_AIRCARD 0x0112 |
Matthias Urlichs | 14f76cc | 2006-06-02 11:48:56 +0200 | [diff] [blame] | 83 | #define NOVATELWIRELESS_PRODUCT_U740 0x1400 |
Matthias Urlichs | 31fcbb7 | 2006-07-12 08:35:29 +0200 | [diff] [blame] | 84 | #define ANYDATA_PRODUCT_ID 0x6501 |
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 | 14f76cc | 2006-06-02 11:48:56 +0200 | [diff] [blame] | 90 | { USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_COBRA) }, |
Matthias Urlichs | e37de9e | 2006-07-06 13:12:53 +0200 | [diff] [blame] | 91 | { USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_COBRA2) }, |
Matthias Urlichs | b613738 | 2005-09-22 00:48:40 -0700 | [diff] [blame] | 92 | { USB_DEVICE(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E600) }, |
| 93 | { USB_DEVICE(AUDIOVOX_VENDOR_ID, AUDIOVOX_PRODUCT_AIRCARD) }, |
Matthias Urlichs | 14f76cc | 2006-06-02 11:48:56 +0200 | [diff] [blame] | 94 | { USB_DEVICE(NOVATELWIRELESS_VENDOR_ID,NOVATELWIRELESS_PRODUCT_U740) }, |
Matthias Urlichs | 31fcbb7 | 2006-07-12 08:35:29 +0200 | [diff] [blame] | 95 | { USB_DEVICE(ANYDATA_VENDOR_ID, ANYDATA_PRODUCT_ID) }, |
Matthias Urlichs | 14f76cc | 2006-06-02 11:48:56 +0200 | [diff] [blame] | 96 | { } /* Terminating entry */ |
| 97 | }; |
| 98 | |
| 99 | static struct usb_device_id option_ids1[] = { |
| 100 | { USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_OLD) }, |
| 101 | { USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_FUSION) }, |
| 102 | { USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_FUSION2) }, |
| 103 | { USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_COBRA) }, |
Matthias Urlichs | e37de9e | 2006-07-06 13:12:53 +0200 | [diff] [blame] | 104 | { USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_COBRA2) }, |
Matthias Urlichs | 14f76cc | 2006-06-02 11:48:56 +0200 | [diff] [blame] | 105 | { USB_DEVICE(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E600) }, |
| 106 | { USB_DEVICE(AUDIOVOX_VENDOR_ID, AUDIOVOX_PRODUCT_AIRCARD) }, |
| 107 | { USB_DEVICE(NOVATELWIRELESS_VENDOR_ID,NOVATELWIRELESS_PRODUCT_U740) }, |
Matthias Urlichs | 31fcbb7 | 2006-07-12 08:35:29 +0200 | [diff] [blame] | 108 | { USB_DEVICE(ANYDATA_VENDOR_ID, ANYDATA_PRODUCT_ID) }, |
Matthias Urlichs | 14f76cc | 2006-06-02 11:48:56 +0200 | [diff] [blame] | 109 | { } /* Terminating entry */ |
| 110 | }; |
| 111 | static struct usb_device_id option_ids3[] = { |
Matthias Urlichs | 58cfe91 | 2005-05-23 17:00:48 -0700 | [diff] [blame] | 112 | { } /* Terminating entry */ |
| 113 | }; |
| 114 | |
| 115 | MODULE_DEVICE_TABLE(usb, option_ids); |
| 116 | |
| 117 | static struct usb_driver option_driver = { |
Matthias Urlichs | 58cfe91 | 2005-05-23 17:00:48 -0700 | [diff] [blame] | 118 | .name = "option", |
| 119 | .probe = usb_serial_probe, |
| 120 | .disconnect = usb_serial_disconnect, |
| 121 | .id_table = option_ids, |
Greg Kroah-Hartman | ba9dc65 | 2005-11-16 13:41:28 -0800 | [diff] [blame] | 122 | .no_dynamic_id = 1, |
Matthias Urlichs | 58cfe91 | 2005-05-23 17:00:48 -0700 | [diff] [blame] | 123 | }; |
| 124 | |
Uwe Zeisberger | c30fe7f | 2006-03-24 18:23:14 +0100 | [diff] [blame] | 125 | /* The card has three separate interfaces, which the serial driver |
Matthias Urlichs | 58cfe91 | 2005-05-23 17:00:48 -0700 | [diff] [blame] | 126 | * recognizes separately, thus num_port=1. |
| 127 | */ |
Greg Kroah-Hartman | ea65370 | 2005-06-20 21:15:16 -0700 | [diff] [blame] | 128 | static struct usb_serial_driver option_3port_device = { |
Greg Kroah-Hartman | 18fcac3 | 2005-06-20 21:15:16 -0700 | [diff] [blame] | 129 | .driver = { |
| 130 | .owner = THIS_MODULE, |
Matthias Urlichs | 02b2ac5 | 2006-08-02 16:41:41 -0700 | [diff] [blame] | 131 | .name = "option3", |
Greg Kroah-Hartman | 18fcac3 | 2005-06-20 21:15:16 -0700 | [diff] [blame] | 132 | }, |
Matthias Urlichs | 14f76cc | 2006-06-02 11:48:56 +0200 | [diff] [blame] | 133 | .description = "GSM modem (3-port)", |
| 134 | .id_table = option_ids3, |
Matthias Urlichs | ba460e4 | 2005-07-14 00:33:47 -0700 | [diff] [blame] | 135 | .num_interrupt_in = NUM_DONT_CARE, |
| 136 | .num_bulk_in = NUM_DONT_CARE, |
| 137 | .num_bulk_out = NUM_DONT_CARE, |
Matthias Urlichs | 14f76cc | 2006-06-02 11:48:56 +0200 | [diff] [blame] | 138 | .num_ports = 3, |
| 139 | .open = option_open, |
| 140 | .close = option_close, |
| 141 | .write = option_write, |
| 142 | .write_room = option_write_room, |
| 143 | .chars_in_buffer = option_chars_in_buffer, |
| 144 | .throttle = option_rx_throttle, |
| 145 | .unthrottle = option_rx_unthrottle, |
Matthias Urlichs | 02b2ac5 | 2006-08-02 16:41:41 -0700 | [diff] [blame] | 146 | .ioctl = option_ioctl, |
Matthias Urlichs | 14f76cc | 2006-06-02 11:48:56 +0200 | [diff] [blame] | 147 | .set_termios = option_set_termios, |
| 148 | .break_ctl = option_break_ctl, |
| 149 | .tiocmget = option_tiocmget, |
| 150 | .tiocmset = option_tiocmset, |
| 151 | .attach = option_startup, |
| 152 | .shutdown = option_shutdown, |
| 153 | .read_int_callback = option_instat_callback, |
| 154 | }; |
| 155 | |
| 156 | static struct usb_serial_driver option_1port_device = { |
| 157 | .driver = { |
| 158 | .owner = THIS_MODULE, |
Matthias Urlichs | 02b2ac5 | 2006-08-02 16:41:41 -0700 | [diff] [blame] | 159 | .name = "option1", |
Matthias Urlichs | 14f76cc | 2006-06-02 11:48:56 +0200 | [diff] [blame] | 160 | }, |
| 161 | .description = "GSM modem (1-port)", |
| 162 | .id_table = option_ids1, |
| 163 | .num_interrupt_in = NUM_DONT_CARE, |
| 164 | .num_bulk_in = NUM_DONT_CARE, |
| 165 | .num_bulk_out = NUM_DONT_CARE, |
| 166 | .num_ports = 1, |
Matthias Urlichs | ba460e4 | 2005-07-14 00:33:47 -0700 | [diff] [blame] | 167 | .open = option_open, |
| 168 | .close = option_close, |
| 169 | .write = option_write, |
| 170 | .write_room = option_write_room, |
| 171 | .chars_in_buffer = option_chars_in_buffer, |
| 172 | .throttle = option_rx_throttle, |
| 173 | .unthrottle = option_rx_unthrottle, |
| 174 | .ioctl = option_ioctl, |
| 175 | .set_termios = option_set_termios, |
| 176 | .break_ctl = option_break_ctl, |
| 177 | .tiocmget = option_tiocmget, |
| 178 | .tiocmset = option_tiocmset, |
| 179 | .attach = option_startup, |
| 180 | .shutdown = option_shutdown, |
| 181 | .read_int_callback = option_instat_callback, |
Matthias Urlichs | 58cfe91 | 2005-05-23 17:00:48 -0700 | [diff] [blame] | 182 | }; |
| 183 | |
Matthias Urlichs | ba460e4 | 2005-07-14 00:33:47 -0700 | [diff] [blame] | 184 | #ifdef CONFIG_USB_DEBUG |
Matthias Urlichs | 58cfe91 | 2005-05-23 17:00:48 -0700 | [diff] [blame] | 185 | static int debug; |
Matthias Urlichs | ba460e4 | 2005-07-14 00:33:47 -0700 | [diff] [blame] | 186 | #else |
| 187 | #define debug 0 |
| 188 | #endif |
| 189 | |
Matthias Urlichs | 58cfe91 | 2005-05-23 17:00:48 -0700 | [diff] [blame] | 190 | /* per port private data */ |
| 191 | |
Matthias Urlichs | ba460e4 | 2005-07-14 00:33:47 -0700 | [diff] [blame] | 192 | #define N_IN_URB 4 |
| 193 | #define N_OUT_URB 1 |
Matthias Urlichs | b27c73d | 2005-09-22 00:49:33 -0700 | [diff] [blame] | 194 | #define IN_BUFLEN 4096 |
Matthias Urlichs | ba460e4 | 2005-07-14 00:33:47 -0700 | [diff] [blame] | 195 | #define OUT_BUFLEN 128 |
Matthias Urlichs | 58cfe91 | 2005-05-23 17:00:48 -0700 | [diff] [blame] | 196 | |
| 197 | struct option_port_private { |
| 198 | /* Input endpoints and buffer for this port */ |
Matthias Urlichs | ba460e4 | 2005-07-14 00:33:47 -0700 | [diff] [blame] | 199 | struct urb *in_urbs[N_IN_URB]; |
| 200 | char in_buffer[N_IN_URB][IN_BUFLEN]; |
Matthias Urlichs | 58cfe91 | 2005-05-23 17:00:48 -0700 | [diff] [blame] | 201 | /* Output endpoints and buffer for this port */ |
Matthias Urlichs | ba460e4 | 2005-07-14 00:33:47 -0700 | [diff] [blame] | 202 | struct urb *out_urbs[N_OUT_URB]; |
| 203 | char out_buffer[N_OUT_URB][OUT_BUFLEN]; |
Matthias Urlichs | 58cfe91 | 2005-05-23 17:00:48 -0700 | [diff] [blame] | 204 | |
| 205 | /* Settings for the port */ |
Matthias Urlichs | ba460e4 | 2005-07-14 00:33:47 -0700 | [diff] [blame] | 206 | int rts_state; /* Handshaking pins (outputs) */ |
| 207 | int dtr_state; |
| 208 | int cts_state; /* Handshaking pins (inputs) */ |
| 209 | int dsr_state; |
| 210 | int dcd_state; |
| 211 | int ri_state; |
Matthias Urlichs | 58cfe91 | 2005-05-23 17:00:48 -0700 | [diff] [blame] | 212 | |
Matthias Urlichs | ba460e4 | 2005-07-14 00:33:47 -0700 | [diff] [blame] | 213 | unsigned long tx_start_time[N_OUT_URB]; |
Matthias Urlichs | 58cfe91 | 2005-05-23 17:00:48 -0700 | [diff] [blame] | 214 | }; |
| 215 | |
Matthias Urlichs | 58cfe91 | 2005-05-23 17:00:48 -0700 | [diff] [blame] | 216 | /* Functions used by new usb-serial code. */ |
Andrew Morton | 7bb75ae | 2005-07-27 01:08:30 -0700 | [diff] [blame] | 217 | static int __init option_init(void) |
Matthias Urlichs | 58cfe91 | 2005-05-23 17:00:48 -0700 | [diff] [blame] | 218 | { |
| 219 | int retval; |
Matthias Urlichs | 14f76cc | 2006-06-02 11:48:56 +0200 | [diff] [blame] | 220 | retval = usb_serial_register(&option_1port_device); |
| 221 | if (retval) |
| 222 | goto failed_1port_device_register; |
Matthias Urlichs | 58cfe91 | 2005-05-23 17:00:48 -0700 | [diff] [blame] | 223 | retval = usb_serial_register(&option_3port_device); |
| 224 | if (retval) |
| 225 | goto failed_3port_device_register; |
| 226 | retval = usb_register(&option_driver); |
| 227 | if (retval) |
| 228 | goto failed_driver_register; |
| 229 | |
| 230 | info(DRIVER_DESC ": " DRIVER_VERSION); |
| 231 | |
| 232 | return 0; |
| 233 | |
| 234 | failed_driver_register: |
| 235 | usb_serial_deregister (&option_3port_device); |
| 236 | failed_3port_device_register: |
Matthias Urlichs | 14f76cc | 2006-06-02 11:48:56 +0200 | [diff] [blame] | 237 | usb_serial_deregister (&option_1port_device); |
| 238 | failed_1port_device_register: |
Matthias Urlichs | 58cfe91 | 2005-05-23 17:00:48 -0700 | [diff] [blame] | 239 | return retval; |
| 240 | } |
| 241 | |
Andrew Morton | 7bb75ae | 2005-07-27 01:08:30 -0700 | [diff] [blame] | 242 | static void __exit option_exit(void) |
Matthias Urlichs | 58cfe91 | 2005-05-23 17:00:48 -0700 | [diff] [blame] | 243 | { |
| 244 | usb_deregister (&option_driver); |
| 245 | usb_serial_deregister (&option_3port_device); |
Matthias Urlichs | 14f76cc | 2006-06-02 11:48:56 +0200 | [diff] [blame] | 246 | usb_serial_deregister (&option_1port_device); |
Matthias Urlichs | 58cfe91 | 2005-05-23 17:00:48 -0700 | [diff] [blame] | 247 | } |
| 248 | |
| 249 | module_init(option_init); |
| 250 | module_exit(option_exit); |
| 251 | |
Andrew Morton | 7bb75ae | 2005-07-27 01:08:30 -0700 | [diff] [blame] | 252 | static void option_rx_throttle(struct usb_serial_port *port) |
Matthias Urlichs | 58cfe91 | 2005-05-23 17:00:48 -0700 | [diff] [blame] | 253 | { |
| 254 | dbg("%s", __FUNCTION__); |
| 255 | } |
| 256 | |
Andrew Morton | 7bb75ae | 2005-07-27 01:08:30 -0700 | [diff] [blame] | 257 | static void option_rx_unthrottle(struct usb_serial_port *port) |
Matthias Urlichs | 58cfe91 | 2005-05-23 17:00:48 -0700 | [diff] [blame] | 258 | { |
| 259 | dbg("%s", __FUNCTION__); |
| 260 | } |
| 261 | |
Andrew Morton | 7bb75ae | 2005-07-27 01:08:30 -0700 | [diff] [blame] | 262 | 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] | 263 | { |
| 264 | /* Unfortunately, I don't know how to send a break */ |
Matthias Urlichs | ba460e4 | 2005-07-14 00:33:47 -0700 | [diff] [blame] | 265 | dbg("%s", __FUNCTION__); |
Matthias Urlichs | 58cfe91 | 2005-05-23 17:00:48 -0700 | [diff] [blame] | 266 | } |
| 267 | |
Andrew Morton | 7bb75ae | 2005-07-27 01:08:30 -0700 | [diff] [blame] | 268 | static void option_set_termios(struct usb_serial_port *port, |
| 269 | struct termios *old_termios) |
Matthias Urlichs | 58cfe91 | 2005-05-23 17:00:48 -0700 | [diff] [blame] | 270 | { |
| 271 | dbg("%s", __FUNCTION__); |
| 272 | |
| 273 | option_send_setup(port); |
| 274 | } |
| 275 | |
Andrew Morton | 7bb75ae | 2005-07-27 01:08:30 -0700 | [diff] [blame] | 276 | static int option_tiocmget(struct usb_serial_port *port, struct file *file) |
Matthias Urlichs | 58cfe91 | 2005-05-23 17:00:48 -0700 | [diff] [blame] | 277 | { |
Matthias Urlichs | ba460e4 | 2005-07-14 00:33:47 -0700 | [diff] [blame] | 278 | unsigned int value; |
| 279 | struct option_port_private *portdata; |
Matthias Urlichs | 58cfe91 | 2005-05-23 17:00:48 -0700 | [diff] [blame] | 280 | |
| 281 | portdata = usb_get_serial_port_data(port); |
| 282 | |
| 283 | value = ((portdata->rts_state) ? TIOCM_RTS : 0) | |
| 284 | ((portdata->dtr_state) ? TIOCM_DTR : 0) | |
| 285 | ((portdata->cts_state) ? TIOCM_CTS : 0) | |
| 286 | ((portdata->dsr_state) ? TIOCM_DSR : 0) | |
| 287 | ((portdata->dcd_state) ? TIOCM_CAR : 0) | |
| 288 | ((portdata->ri_state) ? TIOCM_RNG : 0); |
| 289 | |
| 290 | return value; |
| 291 | } |
| 292 | |
Andrew Morton | 7bb75ae | 2005-07-27 01:08:30 -0700 | [diff] [blame] | 293 | static int option_tiocmset(struct usb_serial_port *port, struct file *file, |
| 294 | unsigned int set, unsigned int clear) |
Matthias Urlichs | 58cfe91 | 2005-05-23 17:00:48 -0700 | [diff] [blame] | 295 | { |
Matthias Urlichs | ba460e4 | 2005-07-14 00:33:47 -0700 | [diff] [blame] | 296 | struct option_port_private *portdata; |
Matthias Urlichs | 58cfe91 | 2005-05-23 17:00:48 -0700 | [diff] [blame] | 297 | |
| 298 | portdata = usb_get_serial_port_data(port); |
| 299 | |
| 300 | if (set & TIOCM_RTS) |
| 301 | portdata->rts_state = 1; |
| 302 | if (set & TIOCM_DTR) |
| 303 | portdata->dtr_state = 1; |
| 304 | |
| 305 | if (clear & TIOCM_RTS) |
| 306 | portdata->rts_state = 0; |
| 307 | if (clear & TIOCM_DTR) |
| 308 | portdata->dtr_state = 0; |
| 309 | return option_send_setup(port); |
| 310 | } |
| 311 | |
Andrew Morton | 7bb75ae | 2005-07-27 01:08:30 -0700 | [diff] [blame] | 312 | static int option_ioctl(struct usb_serial_port *port, struct file *file, |
| 313 | unsigned int cmd, unsigned long arg) |
Matthias Urlichs | 58cfe91 | 2005-05-23 17:00:48 -0700 | [diff] [blame] | 314 | { |
| 315 | return -ENOIOCTLCMD; |
| 316 | } |
| 317 | |
| 318 | /* Write */ |
Andrew Morton | 7bb75ae | 2005-07-27 01:08:30 -0700 | [diff] [blame] | 319 | static int option_write(struct usb_serial_port *port, |
| 320 | const unsigned char *buf, int count) |
Matthias Urlichs | 58cfe91 | 2005-05-23 17:00:48 -0700 | [diff] [blame] | 321 | { |
Matthias Urlichs | ba460e4 | 2005-07-14 00:33:47 -0700 | [diff] [blame] | 322 | struct option_port_private *portdata; |
| 323 | int i; |
| 324 | int left, todo; |
| 325 | struct urb *this_urb = NULL; /* spurious */ |
| 326 | int err; |
Matthias Urlichs | 58cfe91 | 2005-05-23 17:00:48 -0700 | [diff] [blame] | 327 | |
| 328 | portdata = usb_get_serial_port_data(port); |
| 329 | |
| 330 | dbg("%s: write (%d chars)", __FUNCTION__, count); |
| 331 | |
Matthias Urlichs | 58cfe91 | 2005-05-23 17:00:48 -0700 | [diff] [blame] | 332 | i = 0; |
| 333 | left = count; |
Matthias Urlichs | ba460e4 | 2005-07-14 00:33:47 -0700 | [diff] [blame] | 334 | for (i=0; left > 0 && i < N_OUT_URB; i++) { |
Matthias Urlichs | 58cfe91 | 2005-05-23 17:00:48 -0700 | [diff] [blame] | 335 | todo = left; |
| 336 | if (todo > OUT_BUFLEN) |
| 337 | todo = OUT_BUFLEN; |
| 338 | |
Matthias Urlichs | ba460e4 | 2005-07-14 00:33:47 -0700 | [diff] [blame] | 339 | this_urb = portdata->out_urbs[i]; |
| 340 | if (this_urb->status == -EINPROGRESS) { |
Andrew Morton | 7bb75ae | 2005-07-27 01:08:30 -0700 | [diff] [blame] | 341 | if (time_before(jiffies, |
| 342 | portdata->tx_start_time[i] + 10 * HZ)) |
Matthias Urlichs | 58cfe91 | 2005-05-23 17:00:48 -0700 | [diff] [blame] | 343 | continue; |
Matthias Urlichs | 58cfe91 | 2005-05-23 17:00:48 -0700 | [diff] [blame] | 344 | usb_unlink_urb(this_urb); |
Matthias Urlichs | ba460e4 | 2005-07-14 00:33:47 -0700 | [diff] [blame] | 345 | continue; |
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 | if (this_urb->status != 0) |
Andrew Morton | 7bb75ae | 2005-07-27 01:08:30 -0700 | [diff] [blame] | 348 | dbg("usb_write %p failed (err=%d)", |
| 349 | this_urb, this_urb->status); |
Matthias Urlichs | 58cfe91 | 2005-05-23 17:00:48 -0700 | [diff] [blame] | 350 | |
Andrew Morton | 7bb75ae | 2005-07-27 01:08:30 -0700 | [diff] [blame] | 351 | dbg("%s: endpoint %d buf %d", __FUNCTION__, |
| 352 | usb_pipeendpoint(this_urb->pipe), i); |
Matthias Urlichs | 58cfe91 | 2005-05-23 17:00:48 -0700 | [diff] [blame] | 353 | |
Matthias Urlichs | ba460e4 | 2005-07-14 00:33:47 -0700 | [diff] [blame] | 354 | /* send the data */ |
Matthias Urlichs | 58cfe91 | 2005-05-23 17:00:48 -0700 | [diff] [blame] | 355 | memcpy (this_urb->transfer_buffer, buf, todo); |
Matthias Urlichs | 58cfe91 | 2005-05-23 17:00:48 -0700 | [diff] [blame] | 356 | this_urb->transfer_buffer_length = todo; |
| 357 | |
Matthias Urlichs | 58cfe91 | 2005-05-23 17:00:48 -0700 | [diff] [blame] | 358 | this_urb->dev = port->serial->dev; |
| 359 | err = usb_submit_urb(this_urb, GFP_ATOMIC); |
| 360 | if (err) { |
Andrew Morton | 7bb75ae | 2005-07-27 01:08:30 -0700 | [diff] [blame] | 361 | dbg("usb_submit_urb %p (write bulk) failed " |
| 362 | "(%d, has %d)", this_urb, |
| 363 | err, this_urb->status); |
Matthias Urlichs | 58cfe91 | 2005-05-23 17:00:48 -0700 | [diff] [blame] | 364 | continue; |
| 365 | } |
| 366 | portdata->tx_start_time[i] = jiffies; |
| 367 | buf += todo; |
| 368 | left -= todo; |
| 369 | } |
| 370 | |
| 371 | count -= left; |
Matthias Urlichs | 58cfe91 | 2005-05-23 17:00:48 -0700 | [diff] [blame] | 372 | dbg("%s: wrote (did %d)", __FUNCTION__, count); |
| 373 | return count; |
| 374 | } |
| 375 | |
Andrew Morton | 7bb75ae | 2005-07-27 01:08:30 -0700 | [diff] [blame] | 376 | static void option_indat_callback(struct urb *urb, struct pt_regs *regs) |
Matthias Urlichs | 58cfe91 | 2005-05-23 17:00:48 -0700 | [diff] [blame] | 377 | { |
Alan Cox | 33f0f88 | 2006-01-09 20:54:13 -0800 | [diff] [blame] | 378 | int err; |
Matthias Urlichs | 58cfe91 | 2005-05-23 17:00:48 -0700 | [diff] [blame] | 379 | int endpoint; |
| 380 | struct usb_serial_port *port; |
| 381 | struct tty_struct *tty; |
| 382 | unsigned char *data = urb->transfer_buffer; |
| 383 | |
| 384 | dbg("%s: %p", __FUNCTION__, urb); |
| 385 | |
| 386 | endpoint = usb_pipeendpoint(urb->pipe); |
| 387 | port = (struct usb_serial_port *) urb->context; |
| 388 | |
| 389 | if (urb->status) { |
| 390 | dbg("%s: nonzero status: %d on endpoint %02x.", |
| 391 | __FUNCTION__, urb->status, endpoint); |
| 392 | } else { |
| 393 | tty = port->tty; |
| 394 | if (urb->actual_length) { |
Alan Cox | 33f0f88 | 2006-01-09 20:54:13 -0800 | [diff] [blame] | 395 | tty_buffer_request_room(tty, urb->actual_length); |
| 396 | tty_insert_flip_string(tty, data, urb->actual_length); |
Matthias Urlichs | 58cfe91 | 2005-05-23 17:00:48 -0700 | [diff] [blame] | 397 | tty_flip_buffer_push(tty); |
| 398 | } else { |
| 399 | dbg("%s: empty read urb received", __FUNCTION__); |
| 400 | } |
| 401 | |
| 402 | /* Resubmit urb so we continue receiving */ |
| 403 | if (port->open_count && urb->status != -ESHUTDOWN) { |
| 404 | err = usb_submit_urb(urb, GFP_ATOMIC); |
| 405 | if (err) |
Andrew Morton | 7bb75ae | 2005-07-27 01:08:30 -0700 | [diff] [blame] | 406 | printk(KERN_ERR "%s: resubmit read urb failed. " |
| 407 | "(%d)", __FUNCTION__, err); |
Matthias Urlichs | 58cfe91 | 2005-05-23 17:00:48 -0700 | [diff] [blame] | 408 | } |
| 409 | } |
| 410 | return; |
| 411 | } |
| 412 | |
Andrew Morton | 7bb75ae | 2005-07-27 01:08:30 -0700 | [diff] [blame] | 413 | static void option_outdat_callback(struct urb *urb, struct pt_regs *regs) |
Matthias Urlichs | 58cfe91 | 2005-05-23 17:00:48 -0700 | [diff] [blame] | 414 | { |
| 415 | struct usb_serial_port *port; |
| 416 | |
| 417 | dbg("%s", __FUNCTION__); |
| 418 | |
| 419 | port = (struct usb_serial_port *) urb->context; |
| 420 | |
Pete Zaitcev | cf2c748 | 2006-05-22 21:58:49 -0700 | [diff] [blame] | 421 | usb_serial_port_softint(port); |
Matthias Urlichs | 58cfe91 | 2005-05-23 17:00:48 -0700 | [diff] [blame] | 422 | } |
| 423 | |
Andrew Morton | 7bb75ae | 2005-07-27 01:08:30 -0700 | [diff] [blame] | 424 | static void option_instat_callback(struct urb *urb, struct pt_regs *regs) |
Matthias Urlichs | 58cfe91 | 2005-05-23 17:00:48 -0700 | [diff] [blame] | 425 | { |
| 426 | int err; |
| 427 | struct usb_serial_port *port = (struct usb_serial_port *) urb->context; |
| 428 | struct option_port_private *portdata = usb_get_serial_port_data(port); |
| 429 | struct usb_serial *serial = port->serial; |
| 430 | |
| 431 | dbg("%s", __FUNCTION__); |
| 432 | dbg("%s: urb %p port %p has data %p", __FUNCTION__,urb,port,portdata); |
| 433 | |
| 434 | if (urb->status == 0) { |
| 435 | struct usb_ctrlrequest *req_pkt = |
| 436 | (struct usb_ctrlrequest *)urb->transfer_buffer; |
| 437 | |
| 438 | if (!req_pkt) { |
| 439 | dbg("%s: NULL req_pkt\n", __FUNCTION__); |
| 440 | return; |
| 441 | } |
Andrew Morton | 7bb75ae | 2005-07-27 01:08:30 -0700 | [diff] [blame] | 442 | if ((req_pkt->bRequestType == 0xA1) && |
| 443 | (req_pkt->bRequest == 0x20)) { |
Matthias Urlichs | 58cfe91 | 2005-05-23 17:00:48 -0700 | [diff] [blame] | 444 | int old_dcd_state; |
| 445 | unsigned char signals = *((unsigned char *) |
Andrew Morton | 7bb75ae | 2005-07-27 01:08:30 -0700 | [diff] [blame] | 446 | urb->transfer_buffer + |
| 447 | sizeof(struct usb_ctrlrequest)); |
Matthias Urlichs | 58cfe91 | 2005-05-23 17:00:48 -0700 | [diff] [blame] | 448 | |
| 449 | dbg("%s: signal x%x", __FUNCTION__, signals); |
| 450 | |
| 451 | old_dcd_state = portdata->dcd_state; |
| 452 | portdata->cts_state = 1; |
| 453 | portdata->dcd_state = ((signals & 0x01) ? 1 : 0); |
| 454 | portdata->dsr_state = ((signals & 0x02) ? 1 : 0); |
| 455 | portdata->ri_state = ((signals & 0x08) ? 1 : 0); |
| 456 | |
Andrew Morton | 7bb75ae | 2005-07-27 01:08:30 -0700 | [diff] [blame] | 457 | if (port->tty && !C_CLOCAL(port->tty) && |
| 458 | old_dcd_state && !portdata->dcd_state) |
Matthias Urlichs | 58cfe91 | 2005-05-23 17:00:48 -0700 | [diff] [blame] | 459 | tty_hangup(port->tty); |
Andrew Morton | 7bb75ae | 2005-07-27 01:08:30 -0700 | [diff] [blame] | 460 | } else { |
| 461 | dbg("%s: type %x req %x", __FUNCTION__, |
| 462 | req_pkt->bRequestType,req_pkt->bRequest); |
| 463 | } |
Matthias Urlichs | 58cfe91 | 2005-05-23 17:00:48 -0700 | [diff] [blame] | 464 | } else |
| 465 | dbg("%s: error %d", __FUNCTION__, urb->status); |
| 466 | |
| 467 | /* Resubmit urb so we continue receiving IRQ data */ |
| 468 | if (urb->status != -ESHUTDOWN) { |
| 469 | urb->dev = serial->dev; |
| 470 | err = usb_submit_urb(urb, GFP_ATOMIC); |
| 471 | if (err) |
Andrew Morton | 7bb75ae | 2005-07-27 01:08:30 -0700 | [diff] [blame] | 472 | dbg("%s: resubmit intr urb failed. (%d)", |
| 473 | __FUNCTION__, err); |
Matthias Urlichs | 58cfe91 | 2005-05-23 17:00:48 -0700 | [diff] [blame] | 474 | } |
| 475 | } |
| 476 | |
Andrew Morton | 7bb75ae | 2005-07-27 01:08:30 -0700 | [diff] [blame] | 477 | static int option_write_room(struct usb_serial_port *port) |
Matthias Urlichs | 58cfe91 | 2005-05-23 17:00:48 -0700 | [diff] [blame] | 478 | { |
| 479 | struct option_port_private *portdata; |
| 480 | int i; |
| 481 | int data_len = 0; |
| 482 | struct urb *this_urb; |
| 483 | |
| 484 | portdata = usb_get_serial_port_data(port); |
| 485 | |
Matthias Urlichs | ba460e4 | 2005-07-14 00:33:47 -0700 | [diff] [blame] | 486 | for (i=0; i < N_OUT_URB; i++) { |
Matthias Urlichs | 58cfe91 | 2005-05-23 17:00:48 -0700 | [diff] [blame] | 487 | this_urb = portdata->out_urbs[i]; |
| 488 | if (this_urb && this_urb->status != -EINPROGRESS) |
| 489 | data_len += OUT_BUFLEN; |
Matthias Urlichs | ba460e4 | 2005-07-14 00:33:47 -0700 | [diff] [blame] | 490 | } |
Matthias Urlichs | 58cfe91 | 2005-05-23 17:00:48 -0700 | [diff] [blame] | 491 | |
| 492 | dbg("%s: %d", __FUNCTION__, data_len); |
| 493 | return data_len; |
| 494 | } |
| 495 | |
Andrew Morton | 7bb75ae | 2005-07-27 01:08:30 -0700 | [diff] [blame] | 496 | static int option_chars_in_buffer(struct usb_serial_port *port) |
Matthias Urlichs | 58cfe91 | 2005-05-23 17:00:48 -0700 | [diff] [blame] | 497 | { |
| 498 | struct option_port_private *portdata; |
| 499 | int i; |
| 500 | int data_len = 0; |
| 501 | struct urb *this_urb; |
| 502 | |
| 503 | portdata = usb_get_serial_port_data(port); |
| 504 | |
Matthias Urlichs | ba460e4 | 2005-07-14 00:33:47 -0700 | [diff] [blame] | 505 | for (i=0; i < N_OUT_URB; i++) { |
Matthias Urlichs | 58cfe91 | 2005-05-23 17:00:48 -0700 | [diff] [blame] | 506 | this_urb = portdata->out_urbs[i]; |
| 507 | if (this_urb && this_urb->status == -EINPROGRESS) |
| 508 | data_len += this_urb->transfer_buffer_length; |
Matthias Urlichs | ba460e4 | 2005-07-14 00:33:47 -0700 | [diff] [blame] | 509 | } |
Matthias Urlichs | 58cfe91 | 2005-05-23 17:00:48 -0700 | [diff] [blame] | 510 | dbg("%s: %d", __FUNCTION__, data_len); |
| 511 | return data_len; |
| 512 | } |
| 513 | |
Andrew Morton | 7bb75ae | 2005-07-27 01:08:30 -0700 | [diff] [blame] | 514 | static int option_open(struct usb_serial_port *port, struct file *filp) |
Matthias Urlichs | 58cfe91 | 2005-05-23 17:00:48 -0700 | [diff] [blame] | 515 | { |
Matthias Urlichs | ba460e4 | 2005-07-14 00:33:47 -0700 | [diff] [blame] | 516 | struct option_port_private *portdata; |
| 517 | struct usb_serial *serial = port->serial; |
| 518 | int i, err; |
| 519 | struct urb *urb; |
Matthias Urlichs | 58cfe91 | 2005-05-23 17:00:48 -0700 | [diff] [blame] | 520 | |
| 521 | portdata = usb_get_serial_port_data(port); |
| 522 | |
| 523 | dbg("%s", __FUNCTION__); |
| 524 | |
| 525 | /* Set some sane defaults */ |
| 526 | portdata->rts_state = 1; |
| 527 | portdata->dtr_state = 1; |
| 528 | |
| 529 | /* Reset low level data toggle and start reading from endpoints */ |
| 530 | for (i = 0; i < N_IN_URB; i++) { |
| 531 | urb = portdata->in_urbs[i]; |
| 532 | if (! urb) |
| 533 | continue; |
| 534 | if (urb->dev != serial->dev) { |
Andrew Morton | 7bb75ae | 2005-07-27 01:08:30 -0700 | [diff] [blame] | 535 | dbg("%s: dev %p != %p", __FUNCTION__, |
| 536 | urb->dev, serial->dev); |
Matthias Urlichs | 58cfe91 | 2005-05-23 17:00:48 -0700 | [diff] [blame] | 537 | continue; |
| 538 | } |
| 539 | |
Andrew Morton | 7bb75ae | 2005-07-27 01:08:30 -0700 | [diff] [blame] | 540 | /* |
| 541 | * make sure endpoint data toggle is synchronized with the |
| 542 | * device |
| 543 | */ |
Matthias Urlichs | 58cfe91 | 2005-05-23 17:00:48 -0700 | [diff] [blame] | 544 | usb_clear_halt(urb->dev, urb->pipe); |
| 545 | |
| 546 | err = usb_submit_urb(urb, GFP_KERNEL); |
| 547 | if (err) { |
Andrew Morton | 7bb75ae | 2005-07-27 01:08:30 -0700 | [diff] [blame] | 548 | dbg("%s: submit urb %d failed (%d) %d", |
| 549 | __FUNCTION__, i, err, |
Matthias Urlichs | 58cfe91 | 2005-05-23 17:00:48 -0700 | [diff] [blame] | 550 | urb->transfer_buffer_length); |
| 551 | } |
| 552 | } |
| 553 | |
| 554 | /* Reset low level data toggle on out endpoints */ |
| 555 | for (i = 0; i < N_OUT_URB; i++) { |
| 556 | urb = portdata->out_urbs[i]; |
| 557 | if (! urb) |
| 558 | continue; |
| 559 | urb->dev = serial->dev; |
Andrew Morton | 7bb75ae | 2005-07-27 01:08:30 -0700 | [diff] [blame] | 560 | /* usb_settoggle(urb->dev, usb_pipeendpoint(urb->pipe), |
| 561 | usb_pipeout(urb->pipe), 0); */ |
Matthias Urlichs | 58cfe91 | 2005-05-23 17:00:48 -0700 | [diff] [blame] | 562 | } |
| 563 | |
| 564 | port->tty->low_latency = 1; |
| 565 | |
| 566 | option_send_setup(port); |
| 567 | |
| 568 | return (0); |
| 569 | } |
| 570 | |
Andrew Morton | 7bb75ae | 2005-07-27 01:08:30 -0700 | [diff] [blame] | 571 | static inline void stop_urb(struct urb *urb) |
Matthias Urlichs | 58cfe91 | 2005-05-23 17:00:48 -0700 | [diff] [blame] | 572 | { |
Greg Kroah-Hartman | 242cf67 | 2005-07-29 16:11:07 -0400 | [diff] [blame] | 573 | if (urb && urb->status == -EINPROGRESS) |
Matthias Urlichs | 58cfe91 | 2005-05-23 17:00:48 -0700 | [diff] [blame] | 574 | usb_kill_urb(urb); |
Matthias Urlichs | 58cfe91 | 2005-05-23 17:00:48 -0700 | [diff] [blame] | 575 | } |
| 576 | |
Andrew Morton | 7bb75ae | 2005-07-27 01:08:30 -0700 | [diff] [blame] | 577 | static void option_close(struct usb_serial_port *port, struct file *filp) |
Matthias Urlichs | 58cfe91 | 2005-05-23 17:00:48 -0700 | [diff] [blame] | 578 | { |
Matthias Urlichs | ba460e4 | 2005-07-14 00:33:47 -0700 | [diff] [blame] | 579 | int i; |
| 580 | struct usb_serial *serial = port->serial; |
| 581 | struct option_port_private *portdata; |
Matthias Urlichs | 58cfe91 | 2005-05-23 17:00:48 -0700 | [diff] [blame] | 582 | |
| 583 | dbg("%s", __FUNCTION__); |
| 584 | portdata = usb_get_serial_port_data(port); |
| 585 | |
| 586 | portdata->rts_state = 0; |
| 587 | portdata->dtr_state = 0; |
| 588 | |
| 589 | if (serial->dev) { |
| 590 | option_send_setup(port); |
| 591 | |
| 592 | /* Stop reading/writing urbs */ |
| 593 | for (i = 0; i < N_IN_URB; i++) |
| 594 | stop_urb(portdata->in_urbs[i]); |
| 595 | for (i = 0; i < N_OUT_URB; i++) |
| 596 | stop_urb(portdata->out_urbs[i]); |
| 597 | } |
| 598 | port->tty = NULL; |
| 599 | } |
| 600 | |
Matthias Urlichs | 58cfe91 | 2005-05-23 17:00:48 -0700 | [diff] [blame] | 601 | /* Helper functions used by option_setup_urbs */ |
Andrew Morton | 7bb75ae | 2005-07-27 01:08:30 -0700 | [diff] [blame] | 602 | static struct urb *option_setup_urb(struct usb_serial *serial, int endpoint, |
| 603 | int dir, void *ctx, char *buf, int len, |
| 604 | void (*callback)(struct urb *, struct pt_regs *regs)) |
Matthias Urlichs | 58cfe91 | 2005-05-23 17:00:48 -0700 | [diff] [blame] | 605 | { |
| 606 | struct urb *urb; |
| 607 | |
| 608 | if (endpoint == -1) |
| 609 | return NULL; /* endpoint not needed */ |
| 610 | |
| 611 | urb = usb_alloc_urb(0, GFP_KERNEL); /* No ISO */ |
| 612 | if (urb == NULL) { |
| 613 | dbg("%s: alloc for endpoint %d failed.", __FUNCTION__, endpoint); |
| 614 | return NULL; |
| 615 | } |
| 616 | |
| 617 | /* Fill URB using supplied data. */ |
| 618 | usb_fill_bulk_urb(urb, serial->dev, |
| 619 | usb_sndbulkpipe(serial->dev, endpoint) | dir, |
| 620 | buf, len, callback, ctx); |
| 621 | |
| 622 | return urb; |
| 623 | } |
| 624 | |
| 625 | /* Setup urbs */ |
Andrew Morton | 7bb75ae | 2005-07-27 01:08:30 -0700 | [diff] [blame] | 626 | static void option_setup_urbs(struct usb_serial *serial) |
Matthias Urlichs | 58cfe91 | 2005-05-23 17:00:48 -0700 | [diff] [blame] | 627 | { |
Matthias Urlichs | 14f76cc | 2006-06-02 11:48:56 +0200 | [diff] [blame] | 628 | int i,j; |
Matthias Urlichs | ba460e4 | 2005-07-14 00:33:47 -0700 | [diff] [blame] | 629 | struct usb_serial_port *port; |
| 630 | struct option_port_private *portdata; |
Matthias Urlichs | 58cfe91 | 2005-05-23 17:00:48 -0700 | [diff] [blame] | 631 | |
| 632 | dbg("%s", __FUNCTION__); |
| 633 | |
Matthias Urlichs | 14f76cc | 2006-06-02 11:48:56 +0200 | [diff] [blame] | 634 | for (i = 0; i < serial->num_ports; i++) { |
| 635 | port = serial->port[i]; |
| 636 | portdata = usb_get_serial_port_data(port); |
Matthias Urlichs | 58cfe91 | 2005-05-23 17:00:48 -0700 | [diff] [blame] | 637 | |
| 638 | /* Do indat endpoints first */ |
Matthias Urlichs | 14f76cc | 2006-06-02 11:48:56 +0200 | [diff] [blame] | 639 | for (j = 0; j < N_IN_URB; ++j) { |
| 640 | portdata->in_urbs[j] = option_setup_urb (serial, |
| 641 | port->bulk_in_endpointAddress, USB_DIR_IN, port, |
| 642 | portdata->in_buffer[j], IN_BUFLEN, option_indat_callback); |
| 643 | } |
Matthias Urlichs | 58cfe91 | 2005-05-23 17:00:48 -0700 | [diff] [blame] | 644 | |
Matthias Urlichs | 14f76cc | 2006-06-02 11:48:56 +0200 | [diff] [blame] | 645 | /* outdat endpoints */ |
| 646 | for (j = 0; j < N_OUT_URB; ++j) { |
| 647 | portdata->out_urbs[j] = option_setup_urb (serial, |
| 648 | port->bulk_out_endpointAddress, USB_DIR_OUT, port, |
| 649 | portdata->out_buffer[j], OUT_BUFLEN, option_outdat_callback); |
| 650 | } |
Matthias Urlichs | 58cfe91 | 2005-05-23 17:00:48 -0700 | [diff] [blame] | 651 | } |
| 652 | } |
| 653 | |
Andrew Morton | 7bb75ae | 2005-07-27 01:08:30 -0700 | [diff] [blame] | 654 | static int option_send_setup(struct usb_serial_port *port) |
Matthias Urlichs | 58cfe91 | 2005-05-23 17:00:48 -0700 | [diff] [blame] | 655 | { |
| 656 | struct usb_serial *serial = port->serial; |
| 657 | struct option_port_private *portdata; |
| 658 | |
| 659 | dbg("%s", __FUNCTION__); |
| 660 | |
| 661 | portdata = usb_get_serial_port_data(port); |
| 662 | |
| 663 | if (port->tty) { |
| 664 | int val = 0; |
| 665 | if (portdata->dtr_state) |
| 666 | val |= 0x01; |
| 667 | if (portdata->rts_state) |
| 668 | val |= 0x02; |
| 669 | |
Andrew Morton | 7bb75ae | 2005-07-27 01:08:30 -0700 | [diff] [blame] | 670 | return usb_control_msg(serial->dev, |
| 671 | usb_rcvctrlpipe(serial->dev, 0), |
| 672 | 0x22,0x21,val,0,NULL,0,USB_CTRL_SET_TIMEOUT); |
Matthias Urlichs | 58cfe91 | 2005-05-23 17:00:48 -0700 | [diff] [blame] | 673 | } |
| 674 | |
| 675 | return 0; |
| 676 | } |
| 677 | |
Andrew Morton | 7bb75ae | 2005-07-27 01:08:30 -0700 | [diff] [blame] | 678 | static int option_startup(struct usb_serial *serial) |
Matthias Urlichs | 58cfe91 | 2005-05-23 17:00:48 -0700 | [diff] [blame] | 679 | { |
Matthias Urlichs | ba460e4 | 2005-07-14 00:33:47 -0700 | [diff] [blame] | 680 | int i, err; |
| 681 | struct usb_serial_port *port; |
| 682 | struct option_port_private *portdata; |
Matthias Urlichs | 58cfe91 | 2005-05-23 17:00:48 -0700 | [diff] [blame] | 683 | |
| 684 | dbg("%s", __FUNCTION__); |
| 685 | |
| 686 | /* Now setup per port private data */ |
| 687 | for (i = 0; i < serial->num_ports; i++) { |
| 688 | port = serial->port[i]; |
Eric Sesterhenn | 80b6ca4 | 2006-02-27 21:29:43 +0100 | [diff] [blame] | 689 | portdata = kzalloc(sizeof(*portdata), GFP_KERNEL); |
Matthias Urlichs | 58cfe91 | 2005-05-23 17:00:48 -0700 | [diff] [blame] | 690 | if (!portdata) { |
Andrew Morton | 7bb75ae | 2005-07-27 01:08:30 -0700 | [diff] [blame] | 691 | dbg("%s: kmalloc for option_port_private (%d) failed!.", |
| 692 | __FUNCTION__, i); |
Matthias Urlichs | 58cfe91 | 2005-05-23 17:00:48 -0700 | [diff] [blame] | 693 | return (1); |
| 694 | } |
Matthias Urlichs | 58cfe91 | 2005-05-23 17:00:48 -0700 | [diff] [blame] | 695 | |
| 696 | usb_set_serial_port_data(port, portdata); |
| 697 | |
| 698 | if (! port->interrupt_in_urb) |
| 699 | continue; |
| 700 | err = usb_submit_urb(port->interrupt_in_urb, GFP_KERNEL); |
| 701 | if (err) |
Andrew Morton | 7bb75ae | 2005-07-27 01:08:30 -0700 | [diff] [blame] | 702 | dbg("%s: submit irq_in urb failed %d", |
| 703 | __FUNCTION__, err); |
Matthias Urlichs | 58cfe91 | 2005-05-23 17:00:48 -0700 | [diff] [blame] | 704 | } |
| 705 | |
| 706 | option_setup_urbs(serial); |
| 707 | |
| 708 | return (0); |
| 709 | } |
| 710 | |
Andrew Morton | 7bb75ae | 2005-07-27 01:08:30 -0700 | [diff] [blame] | 711 | static void option_shutdown(struct usb_serial *serial) |
Matthias Urlichs | 58cfe91 | 2005-05-23 17:00:48 -0700 | [diff] [blame] | 712 | { |
Matthias Urlichs | ba460e4 | 2005-07-14 00:33:47 -0700 | [diff] [blame] | 713 | int i, j; |
| 714 | struct usb_serial_port *port; |
| 715 | struct option_port_private *portdata; |
Matthias Urlichs | 58cfe91 | 2005-05-23 17:00:48 -0700 | [diff] [blame] | 716 | |
| 717 | dbg("%s", __FUNCTION__); |
| 718 | |
| 719 | /* Stop reading/writing urbs */ |
| 720 | for (i = 0; i < serial->num_ports; ++i) { |
| 721 | port = serial->port[i]; |
| 722 | portdata = usb_get_serial_port_data(port); |
| 723 | for (j = 0; j < N_IN_URB; j++) |
| 724 | stop_urb(portdata->in_urbs[j]); |
| 725 | for (j = 0; j < N_OUT_URB; j++) |
| 726 | stop_urb(portdata->out_urbs[j]); |
| 727 | } |
| 728 | |
| 729 | /* Now free them */ |
| 730 | for (i = 0; i < serial->num_ports; ++i) { |
| 731 | port = serial->port[i]; |
| 732 | portdata = usb_get_serial_port_data(port); |
| 733 | |
| 734 | for (j = 0; j < N_IN_URB; j++) { |
| 735 | if (portdata->in_urbs[j]) { |
| 736 | usb_free_urb(portdata->in_urbs[j]); |
| 737 | portdata->in_urbs[j] = NULL; |
| 738 | } |
| 739 | } |
| 740 | for (j = 0; j < N_OUT_URB; j++) { |
| 741 | if (portdata->out_urbs[j]) { |
| 742 | usb_free_urb(portdata->out_urbs[j]); |
| 743 | portdata->out_urbs[j] = NULL; |
| 744 | } |
| 745 | } |
| 746 | } |
| 747 | |
| 748 | /* Now free per port private data */ |
| 749 | for (i = 0; i < serial->num_ports; i++) { |
| 750 | port = serial->port[i]; |
| 751 | kfree(usb_get_serial_port_data(port)); |
| 752 | } |
| 753 | } |
| 754 | |
| 755 | MODULE_AUTHOR(DRIVER_AUTHOR); |
| 756 | MODULE_DESCRIPTION(DRIVER_DESC); |
| 757 | MODULE_VERSION(DRIVER_VERSION); |
| 758 | MODULE_LICENSE("GPL"); |
| 759 | |
Matthias Urlichs | ba460e4 | 2005-07-14 00:33:47 -0700 | [diff] [blame] | 760 | #ifdef CONFIG_USB_DEBUG |
Matthias Urlichs | 58cfe91 | 2005-05-23 17:00:48 -0700 | [diff] [blame] | 761 | module_param(debug, bool, S_IRUGO | S_IWUSR); |
| 762 | MODULE_PARM_DESC(debug, "Debug messages"); |
Matthias Urlichs | ba460e4 | 2005-07-14 00:33:47 -0700 | [diff] [blame] | 763 | #endif |
Matthias Urlichs | 58cfe91 | 2005-05-23 17:00:48 -0700 | [diff] [blame] | 764 | |