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> |
Alan Stern | 59c2afa | 2007-06-05 16:46:26 -0700 | [diff] [blame] | 41 | #include <linux/bitops.h> |
Matthias Urlichs | 58cfe91 | 2005-05-23 17:00:48 -0700 | [diff] [blame] | 42 | #include <linux/usb.h> |
Greg Kroah-Hartman | a969888 | 2006-07-11 21:22:58 -0700 | [diff] [blame] | 43 | #include <linux/usb/serial.h> |
Matthias Urlichs | 58cfe91 | 2005-05-23 17:00:48 -0700 | [diff] [blame] | 44 | |
| 45 | /* Function prototypes */ |
Andrew Morton | 7bb75ae | 2005-07-27 01:08:30 -0700 | [diff] [blame] | 46 | static int option_open(struct usb_serial_port *port, struct file *filp); |
| 47 | static void option_close(struct usb_serial_port *port, struct file *filp); |
| 48 | static int option_startup(struct usb_serial *serial); |
| 49 | static void option_shutdown(struct usb_serial *serial); |
| 50 | static void option_rx_throttle(struct usb_serial_port *port); |
| 51 | static void option_rx_unthrottle(struct usb_serial_port *port); |
| 52 | static int option_write_room(struct usb_serial_port *port); |
Matthias Urlichs | 58cfe91 | 2005-05-23 17:00:48 -0700 | [diff] [blame] | 53 | |
David Howells | 7d12e78 | 2006-10-05 14:55:46 +0100 | [diff] [blame] | 54 | static void option_instat_callback(struct urb *urb); |
Matthias Urlichs | 58cfe91 | 2005-05-23 17:00:48 -0700 | [diff] [blame] | 55 | |
Andrew Morton | 7bb75ae | 2005-07-27 01:08:30 -0700 | [diff] [blame] | 56 | static int option_write(struct usb_serial_port *port, |
| 57 | const unsigned char *buf, int count); |
Matthias Urlichs | 58cfe91 | 2005-05-23 17:00:48 -0700 | [diff] [blame] | 58 | |
Andrew Morton | 7bb75ae | 2005-07-27 01:08:30 -0700 | [diff] [blame] | 59 | static int option_chars_in_buffer(struct usb_serial_port *port); |
| 60 | static int option_ioctl(struct usb_serial_port *port, struct file *file, |
| 61 | unsigned int cmd, unsigned long arg); |
| 62 | static void option_set_termios(struct usb_serial_port *port, |
Alan Cox | 606d099 | 2006-12-08 02:38:45 -0800 | [diff] [blame] | 63 | struct ktermios *old); |
Andrew Morton | 7bb75ae | 2005-07-27 01:08:30 -0700 | [diff] [blame] | 64 | static void option_break_ctl(struct usb_serial_port *port, int break_state); |
| 65 | static int option_tiocmget(struct usb_serial_port *port, struct file *file); |
| 66 | static int option_tiocmset(struct usb_serial_port *port, struct file *file, |
| 67 | unsigned int set, unsigned int clear); |
| 68 | static int option_send_setup(struct usb_serial_port *port); |
Matthias Urlichs | 58cfe91 | 2005-05-23 17:00:48 -0700 | [diff] [blame] | 69 | |
| 70 | /* Vendor and product IDs */ |
Greg Kroah-Hartman | fd978bf | 2007-02-21 12:53:17 -0800 | [diff] [blame] | 71 | #define OPTION_VENDOR_ID 0x0AF0 |
| 72 | #define OPTION_PRODUCT_COLT 0x5000 |
| 73 | #define OPTION_PRODUCT_RICOLA 0x6000 |
| 74 | #define OPTION_PRODUCT_RICOLA_LIGHT 0x6100 |
| 75 | #define OPTION_PRODUCT_RICOLA_QUAD 0x6200 |
| 76 | #define OPTION_PRODUCT_RICOLA_QUAD_LIGHT 0x6300 |
| 77 | #define OPTION_PRODUCT_RICOLA_NDIS 0x6050 |
| 78 | #define OPTION_PRODUCT_RICOLA_NDIS_LIGHT 0x6150 |
| 79 | #define OPTION_PRODUCT_RICOLA_NDIS_QUAD 0x6250 |
| 80 | #define OPTION_PRODUCT_RICOLA_NDIS_QUAD_LIGHT 0x6350 |
| 81 | #define OPTION_PRODUCT_COBRA 0x6500 |
| 82 | #define OPTION_PRODUCT_COBRA_BUS 0x6501 |
| 83 | #define OPTION_PRODUCT_VIPER 0x6600 |
| 84 | #define OPTION_PRODUCT_VIPER_BUS 0x6601 |
| 85 | #define OPTION_PRODUCT_GT_MAX_READY 0x6701 |
| 86 | #define OPTION_PRODUCT_GT_MAX 0x6711 |
| 87 | #define OPTION_PRODUCT_FUJI_MODEM_LIGHT 0x6721 |
| 88 | #define OPTION_PRODUCT_FUJI_MODEM_GT 0x6741 |
| 89 | #define OPTION_PRODUCT_FUJI_MODEM_EX 0x6761 |
| 90 | #define OPTION_PRODUCT_FUJI_NETWORK_LIGHT 0x6731 |
| 91 | #define OPTION_PRODUCT_FUJI_NETWORK_GT 0x6751 |
| 92 | #define OPTION_PRODUCT_FUJI_NETWORK_EX 0x6771 |
| 93 | #define OPTION_PRODUCT_KOI_MODEM 0x6800 |
| 94 | #define OPTION_PRODUCT_KOI_NETWORK 0x6811 |
| 95 | #define OPTION_PRODUCT_SCORPION_MODEM 0x6901 |
| 96 | #define OPTION_PRODUCT_SCORPION_NETWORK 0x6911 |
| 97 | #define OPTION_PRODUCT_ETNA_MODEM 0x7001 |
| 98 | #define OPTION_PRODUCT_ETNA_NETWORK 0x7011 |
| 99 | #define OPTION_PRODUCT_ETNA_MODEM_LITE 0x7021 |
| 100 | #define OPTION_PRODUCT_ETNA_MODEM_GT 0x7041 |
| 101 | #define OPTION_PRODUCT_ETNA_MODEM_EX 0x7061 |
| 102 | #define OPTION_PRODUCT_ETNA_NETWORK_LITE 0x7031 |
| 103 | #define OPTION_PRODUCT_ETNA_NETWORK_GT 0x7051 |
| 104 | #define OPTION_PRODUCT_ETNA_NETWORK_EX 0x7071 |
| 105 | #define OPTION_PRODUCT_ETNA_KOI_MODEM 0x7100 |
| 106 | #define OPTION_PRODUCT_ETNA_KOI_NETWORK 0x7111 |
Matthias Urlichs | 58cfe91 | 2005-05-23 17:00:48 -0700 | [diff] [blame] | 107 | |
Greg Kroah-Hartman | fd978bf | 2007-02-21 12:53:17 -0800 | [diff] [blame] | 108 | #define HUAWEI_VENDOR_ID 0x12D1 |
| 109 | #define HUAWEI_PRODUCT_E600 0x1001 |
| 110 | #define HUAWEI_PRODUCT_E220 0x1003 |
| 111 | |
| 112 | #define NOVATELWIRELESS_VENDOR_ID 0x1410 |
Greg Kroah-Hartman | fd978bf | 2007-02-21 12:53:17 -0800 | [diff] [blame] | 113 | |
| 114 | #define ANYDATA_VENDOR_ID 0x16d5 |
Alexander Gattin | 46269db | 2007-06-20 00:48:10 +0300 | [diff] [blame] | 115 | #define ANYDATA_PRODUCT_ADU_E100A 0x6501 |
| 116 | #define ANYDATA_PRODUCT_ADU_500A 0x6502 |
Matthias Urlichs | ba460e4 | 2005-07-14 00:33:47 -0700 | [diff] [blame] | 117 | |
Leon Leong | 3f6e584 | 2007-04-26 00:38:02 -0700 | [diff] [blame] | 118 | #define BANDRICH_VENDOR_ID 0x1A8D |
| 119 | #define BANDRICH_PRODUCT_C100_1 0x1002 |
| 120 | #define BANDRICH_PRODUCT_C100_2 0x1003 |
| 121 | |
Hans Engelen | a03c6fa | 2007-04-12 14:40:26 +0200 | [diff] [blame] | 122 | #define DELL_VENDOR_ID 0x413C |
| 123 | |
Matthias Urlichs | 58cfe91 | 2005-05-23 17:00:48 -0700 | [diff] [blame] | 124 | static struct usb_device_id option_ids[] = { |
Greg Kroah-Hartman | fd978bf | 2007-02-21 12:53:17 -0800 | [diff] [blame] | 125 | { USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_COLT) }, |
| 126 | { USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_RICOLA) }, |
| 127 | { USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_RICOLA_LIGHT) }, |
| 128 | { USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_RICOLA_QUAD) }, |
| 129 | { USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_RICOLA_QUAD_LIGHT) }, |
| 130 | { USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_RICOLA_NDIS) }, |
| 131 | { USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_RICOLA_NDIS_LIGHT) }, |
| 132 | { USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_RICOLA_NDIS_QUAD) }, |
| 133 | { USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_RICOLA_NDIS_QUAD_LIGHT) }, |
Matthias Urlichs | 14f76cc | 2006-06-02 11:48:56 +0200 | [diff] [blame] | 134 | { USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_COBRA) }, |
Greg Kroah-Hartman | fd978bf | 2007-02-21 12:53:17 -0800 | [diff] [blame] | 135 | { USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_COBRA_BUS) }, |
| 136 | { USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_VIPER) }, |
| 137 | { USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_VIPER_BUS) }, |
| 138 | { USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_GT_MAX_READY) }, |
| 139 | { USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_GT_MAX) }, |
| 140 | { USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_FUJI_MODEM_LIGHT) }, |
| 141 | { USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_FUJI_MODEM_GT) }, |
| 142 | { USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_FUJI_MODEM_EX) }, |
| 143 | { USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_FUJI_NETWORK_LIGHT) }, |
| 144 | { USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_FUJI_NETWORK_GT) }, |
| 145 | { USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_FUJI_NETWORK_EX) }, |
| 146 | { USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_KOI_MODEM) }, |
| 147 | { USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_KOI_NETWORK) }, |
| 148 | { USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_SCORPION_MODEM) }, |
| 149 | { USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_SCORPION_NETWORK) }, |
| 150 | { USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_ETNA_MODEM) }, |
| 151 | { USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_ETNA_NETWORK) }, |
| 152 | { USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_ETNA_MODEM_LITE) }, |
| 153 | { USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_ETNA_MODEM_GT) }, |
| 154 | { USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_ETNA_MODEM_EX) }, |
| 155 | { USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_ETNA_NETWORK_LITE) }, |
| 156 | { USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_ETNA_NETWORK_GT) }, |
| 157 | { USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_ETNA_NETWORK_EX) }, |
| 158 | { USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_ETNA_KOI_MODEM) }, |
| 159 | { USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_ETNA_KOI_NETWORK) }, |
Matthias Urlichs | b613738 | 2005-09-22 00:48:40 -0700 | [diff] [blame] | 160 | { USB_DEVICE(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E600) }, |
Johann Wilhelm | ab19589 | 2006-12-02 07:25:31 +0100 | [diff] [blame] | 161 | { USB_DEVICE(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E220) }, |
Greg Kroah-Hartman | 69806d5 | 2007-03-19 13:39:51 -0700 | [diff] [blame] | 162 | { USB_DEVICE(NOVATELWIRELESS_VENDOR_ID, 0x1100) }, /* Novatel Merlin XS620/S640 */ |
| 163 | { USB_DEVICE(NOVATELWIRELESS_VENDOR_ID, 0x1110) }, /* Novatel Merlin S620 */ |
| 164 | { USB_DEVICE(NOVATELWIRELESS_VENDOR_ID, 0x1120) }, /* Novatel Merlin EX720 */ |
| 165 | { USB_DEVICE(NOVATELWIRELESS_VENDOR_ID, 0x1130) }, /* Novatel Merlin S720 */ |
| 166 | { USB_DEVICE(NOVATELWIRELESS_VENDOR_ID, 0x1400) }, /* Novatel U730 */ |
| 167 | { USB_DEVICE(NOVATELWIRELESS_VENDOR_ID, 0x1410) }, /* Novatel U740 */ |
| 168 | { USB_DEVICE(NOVATELWIRELESS_VENDOR_ID, 0x1420) }, /* Novatel EU870 */ |
| 169 | { USB_DEVICE(NOVATELWIRELESS_VENDOR_ID, 0x1430) }, /* Novatel Merlin XU870 HSDPA/3G */ |
Greg Kroah-Hartman | 69806d5 | 2007-03-19 13:39:51 -0700 | [diff] [blame] | 170 | { USB_DEVICE(NOVATELWIRELESS_VENDOR_ID, 0x2100) }, /* Novatel EV620 CDMA/EV-DO */ |
| 171 | { USB_DEVICE(NOVATELWIRELESS_VENDOR_ID, 0x2110) }, /* Novatel Merlin ES620 / Merlin ES720 / Ovation U720 */ |
| 172 | { USB_DEVICE(NOVATELWIRELESS_VENDOR_ID, 0x2130) }, /* Novatel Merlin ES620 SM Bus */ |
| 173 | { USB_DEVICE(NOVATELWIRELESS_VENDOR_ID, 0x2410) }, /* Novatel EU740 */ |
Alexander Gattin | 46269db | 2007-06-20 00:48:10 +0300 | [diff] [blame] | 174 | { USB_DEVICE(ANYDATA_VENDOR_ID, ANYDATA_PRODUCT_ADU_E100A) }, |
| 175 | { USB_DEVICE(ANYDATA_VENDOR_ID, ANYDATA_PRODUCT_ADU_500A) }, |
Leon Leong | 3f6e584 | 2007-04-26 00:38:02 -0700 | [diff] [blame] | 176 | { USB_DEVICE(BANDRICH_VENDOR_ID, BANDRICH_PRODUCT_C100_1) }, |
| 177 | { USB_DEVICE(BANDRICH_VENDOR_ID, BANDRICH_PRODUCT_C100_2) }, |
Hans Engelen | a03c6fa | 2007-04-12 14:40:26 +0200 | [diff] [blame] | 178 | { USB_DEVICE(DELL_VENDOR_ID, 0x8118) }, /* Dell Wireless 5510 Mobile Broadband HSDPA ExpressCard */ |
Matthias Urlichs | 14f76cc | 2006-06-02 11:48:56 +0200 | [diff] [blame] | 179 | { } /* Terminating entry */ |
| 180 | }; |
Matthias Urlichs | 58cfe91 | 2005-05-23 17:00:48 -0700 | [diff] [blame] | 181 | MODULE_DEVICE_TABLE(usb, option_ids); |
| 182 | |
| 183 | static struct usb_driver option_driver = { |
Matthias Urlichs | 58cfe91 | 2005-05-23 17:00:48 -0700 | [diff] [blame] | 184 | .name = "option", |
| 185 | .probe = usb_serial_probe, |
| 186 | .disconnect = usb_serial_disconnect, |
| 187 | .id_table = option_ids, |
Greg Kroah-Hartman | ba9dc65 | 2005-11-16 13:41:28 -0800 | [diff] [blame] | 188 | .no_dynamic_id = 1, |
Matthias Urlichs | 58cfe91 | 2005-05-23 17:00:48 -0700 | [diff] [blame] | 189 | }; |
| 190 | |
Uwe Zeisberger | c30fe7f | 2006-03-24 18:23:14 +0100 | [diff] [blame] | 191 | /* The card has three separate interfaces, which the serial driver |
Matthias Urlichs | 58cfe91 | 2005-05-23 17:00:48 -0700 | [diff] [blame] | 192 | * recognizes separately, thus num_port=1. |
| 193 | */ |
Matthias Urlichs | 14f76cc | 2006-06-02 11:48:56 +0200 | [diff] [blame] | 194 | |
| 195 | static struct usb_serial_driver option_1port_device = { |
| 196 | .driver = { |
| 197 | .owner = THIS_MODULE, |
Matthias Urlichs | 02b2ac5 | 2006-08-02 16:41:41 -0700 | [diff] [blame] | 198 | .name = "option1", |
Matthias Urlichs | 14f76cc | 2006-06-02 11:48:56 +0200 | [diff] [blame] | 199 | }, |
| 200 | .description = "GSM modem (1-port)", |
Johannes Hölzl | d9b1b78 | 2006-12-17 21:50:24 +0100 | [diff] [blame] | 201 | .usb_driver = &option_driver, |
Greg Kroah-Hartman | b656b2c | 2007-02-21 12:53:17 -0800 | [diff] [blame] | 202 | .id_table = option_ids, |
Matthias Urlichs | 14f76cc | 2006-06-02 11:48:56 +0200 | [diff] [blame] | 203 | .num_interrupt_in = NUM_DONT_CARE, |
| 204 | .num_bulk_in = NUM_DONT_CARE, |
| 205 | .num_bulk_out = NUM_DONT_CARE, |
| 206 | .num_ports = 1, |
Matthias Urlichs | ba460e4 | 2005-07-14 00:33:47 -0700 | [diff] [blame] | 207 | .open = option_open, |
| 208 | .close = option_close, |
| 209 | .write = option_write, |
| 210 | .write_room = option_write_room, |
| 211 | .chars_in_buffer = option_chars_in_buffer, |
| 212 | .throttle = option_rx_throttle, |
| 213 | .unthrottle = option_rx_unthrottle, |
| 214 | .ioctl = option_ioctl, |
| 215 | .set_termios = option_set_termios, |
| 216 | .break_ctl = option_break_ctl, |
| 217 | .tiocmget = option_tiocmget, |
| 218 | .tiocmset = option_tiocmset, |
| 219 | .attach = option_startup, |
| 220 | .shutdown = option_shutdown, |
| 221 | .read_int_callback = option_instat_callback, |
Matthias Urlichs | 58cfe91 | 2005-05-23 17:00:48 -0700 | [diff] [blame] | 222 | }; |
| 223 | |
Matthias Urlichs | ba460e4 | 2005-07-14 00:33:47 -0700 | [diff] [blame] | 224 | #ifdef CONFIG_USB_DEBUG |
Matthias Urlichs | 58cfe91 | 2005-05-23 17:00:48 -0700 | [diff] [blame] | 225 | static int debug; |
Matthias Urlichs | ba460e4 | 2005-07-14 00:33:47 -0700 | [diff] [blame] | 226 | #else |
| 227 | #define debug 0 |
| 228 | #endif |
| 229 | |
Matthias Urlichs | 58cfe91 | 2005-05-23 17:00:48 -0700 | [diff] [blame] | 230 | /* per port private data */ |
| 231 | |
Matthias Urlichs | ba460e4 | 2005-07-14 00:33:47 -0700 | [diff] [blame] | 232 | #define N_IN_URB 4 |
| 233 | #define N_OUT_URB 1 |
Matthias Urlichs | b27c73d | 2005-09-22 00:49:33 -0700 | [diff] [blame] | 234 | #define IN_BUFLEN 4096 |
Matthias Urlichs | ba460e4 | 2005-07-14 00:33:47 -0700 | [diff] [blame] | 235 | #define OUT_BUFLEN 128 |
Matthias Urlichs | 58cfe91 | 2005-05-23 17:00:48 -0700 | [diff] [blame] | 236 | |
| 237 | struct option_port_private { |
| 238 | /* Input endpoints and buffer for this port */ |
Matthias Urlichs | ba460e4 | 2005-07-14 00:33:47 -0700 | [diff] [blame] | 239 | struct urb *in_urbs[N_IN_URB]; |
| 240 | char in_buffer[N_IN_URB][IN_BUFLEN]; |
Matthias Urlichs | 58cfe91 | 2005-05-23 17:00:48 -0700 | [diff] [blame] | 241 | /* Output endpoints and buffer for this port */ |
Matthias Urlichs | ba460e4 | 2005-07-14 00:33:47 -0700 | [diff] [blame] | 242 | struct urb *out_urbs[N_OUT_URB]; |
| 243 | char out_buffer[N_OUT_URB][OUT_BUFLEN]; |
Alan Stern | 59c2afa | 2007-06-05 16:46:26 -0700 | [diff] [blame] | 244 | unsigned long out_busy; /* Bit vector of URBs in use */ |
Matthias Urlichs | 58cfe91 | 2005-05-23 17:00:48 -0700 | [diff] [blame] | 245 | |
| 246 | /* Settings for the port */ |
Matthias Urlichs | ba460e4 | 2005-07-14 00:33:47 -0700 | [diff] [blame] | 247 | int rts_state; /* Handshaking pins (outputs) */ |
| 248 | int dtr_state; |
| 249 | int cts_state; /* Handshaking pins (inputs) */ |
| 250 | int dsr_state; |
| 251 | int dcd_state; |
| 252 | int ri_state; |
Matthias Urlichs | 58cfe91 | 2005-05-23 17:00:48 -0700 | [diff] [blame] | 253 | |
Matthias Urlichs | ba460e4 | 2005-07-14 00:33:47 -0700 | [diff] [blame] | 254 | unsigned long tx_start_time[N_OUT_URB]; |
Matthias Urlichs | 58cfe91 | 2005-05-23 17:00:48 -0700 | [diff] [blame] | 255 | }; |
| 256 | |
Matthias Urlichs | 58cfe91 | 2005-05-23 17:00:48 -0700 | [diff] [blame] | 257 | /* Functions used by new usb-serial code. */ |
Andrew Morton | 7bb75ae | 2005-07-27 01:08:30 -0700 | [diff] [blame] | 258 | static int __init option_init(void) |
Matthias Urlichs | 58cfe91 | 2005-05-23 17:00:48 -0700 | [diff] [blame] | 259 | { |
| 260 | int retval; |
Matthias Urlichs | 14f76cc | 2006-06-02 11:48:56 +0200 | [diff] [blame] | 261 | retval = usb_serial_register(&option_1port_device); |
| 262 | if (retval) |
| 263 | goto failed_1port_device_register; |
Matthias Urlichs | 58cfe91 | 2005-05-23 17:00:48 -0700 | [diff] [blame] | 264 | retval = usb_register(&option_driver); |
| 265 | if (retval) |
| 266 | goto failed_driver_register; |
| 267 | |
| 268 | info(DRIVER_DESC ": " DRIVER_VERSION); |
| 269 | |
| 270 | return 0; |
| 271 | |
| 272 | failed_driver_register: |
Matthias Urlichs | 14f76cc | 2006-06-02 11:48:56 +0200 | [diff] [blame] | 273 | usb_serial_deregister (&option_1port_device); |
| 274 | failed_1port_device_register: |
Matthias Urlichs | 58cfe91 | 2005-05-23 17:00:48 -0700 | [diff] [blame] | 275 | return retval; |
| 276 | } |
| 277 | |
Andrew Morton | 7bb75ae | 2005-07-27 01:08:30 -0700 | [diff] [blame] | 278 | static void __exit option_exit(void) |
Matthias Urlichs | 58cfe91 | 2005-05-23 17:00:48 -0700 | [diff] [blame] | 279 | { |
| 280 | usb_deregister (&option_driver); |
Matthias Urlichs | 14f76cc | 2006-06-02 11:48:56 +0200 | [diff] [blame] | 281 | usb_serial_deregister (&option_1port_device); |
Matthias Urlichs | 58cfe91 | 2005-05-23 17:00:48 -0700 | [diff] [blame] | 282 | } |
| 283 | |
| 284 | module_init(option_init); |
| 285 | module_exit(option_exit); |
| 286 | |
Andrew Morton | 7bb75ae | 2005-07-27 01:08:30 -0700 | [diff] [blame] | 287 | static void option_rx_throttle(struct usb_serial_port *port) |
Matthias Urlichs | 58cfe91 | 2005-05-23 17:00:48 -0700 | [diff] [blame] | 288 | { |
| 289 | dbg("%s", __FUNCTION__); |
| 290 | } |
| 291 | |
Andrew Morton | 7bb75ae | 2005-07-27 01:08:30 -0700 | [diff] [blame] | 292 | static void option_rx_unthrottle(struct usb_serial_port *port) |
Matthias Urlichs | 58cfe91 | 2005-05-23 17:00:48 -0700 | [diff] [blame] | 293 | { |
| 294 | dbg("%s", __FUNCTION__); |
| 295 | } |
| 296 | |
Andrew Morton | 7bb75ae | 2005-07-27 01:08:30 -0700 | [diff] [blame] | 297 | 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] | 298 | { |
| 299 | /* Unfortunately, I don't know how to send a break */ |
Matthias Urlichs | ba460e4 | 2005-07-14 00:33:47 -0700 | [diff] [blame] | 300 | dbg("%s", __FUNCTION__); |
Matthias Urlichs | 58cfe91 | 2005-05-23 17:00:48 -0700 | [diff] [blame] | 301 | } |
| 302 | |
Andrew Morton | 7bb75ae | 2005-07-27 01:08:30 -0700 | [diff] [blame] | 303 | static void option_set_termios(struct usb_serial_port *port, |
Alan Cox | 606d099 | 2006-12-08 02:38:45 -0800 | [diff] [blame] | 304 | struct ktermios *old_termios) |
Matthias Urlichs | 58cfe91 | 2005-05-23 17:00:48 -0700 | [diff] [blame] | 305 | { |
| 306 | dbg("%s", __FUNCTION__); |
| 307 | |
| 308 | option_send_setup(port); |
| 309 | } |
| 310 | |
Andrew Morton | 7bb75ae | 2005-07-27 01:08:30 -0700 | [diff] [blame] | 311 | static int option_tiocmget(struct usb_serial_port *port, struct file *file) |
Matthias Urlichs | 58cfe91 | 2005-05-23 17:00:48 -0700 | [diff] [blame] | 312 | { |
Matthias Urlichs | ba460e4 | 2005-07-14 00:33:47 -0700 | [diff] [blame] | 313 | unsigned int value; |
| 314 | struct option_port_private *portdata; |
Matthias Urlichs | 58cfe91 | 2005-05-23 17:00:48 -0700 | [diff] [blame] | 315 | |
| 316 | portdata = usb_get_serial_port_data(port); |
| 317 | |
| 318 | value = ((portdata->rts_state) ? TIOCM_RTS : 0) | |
| 319 | ((portdata->dtr_state) ? TIOCM_DTR : 0) | |
| 320 | ((portdata->cts_state) ? TIOCM_CTS : 0) | |
| 321 | ((portdata->dsr_state) ? TIOCM_DSR : 0) | |
| 322 | ((portdata->dcd_state) ? TIOCM_CAR : 0) | |
| 323 | ((portdata->ri_state) ? TIOCM_RNG : 0); |
| 324 | |
| 325 | return value; |
| 326 | } |
| 327 | |
Andrew Morton | 7bb75ae | 2005-07-27 01:08:30 -0700 | [diff] [blame] | 328 | static int option_tiocmset(struct usb_serial_port *port, struct file *file, |
| 329 | unsigned int set, unsigned int clear) |
Matthias Urlichs | 58cfe91 | 2005-05-23 17:00:48 -0700 | [diff] [blame] | 330 | { |
Matthias Urlichs | ba460e4 | 2005-07-14 00:33:47 -0700 | [diff] [blame] | 331 | struct option_port_private *portdata; |
Matthias Urlichs | 58cfe91 | 2005-05-23 17:00:48 -0700 | [diff] [blame] | 332 | |
| 333 | portdata = usb_get_serial_port_data(port); |
| 334 | |
| 335 | if (set & TIOCM_RTS) |
| 336 | portdata->rts_state = 1; |
| 337 | if (set & TIOCM_DTR) |
| 338 | portdata->dtr_state = 1; |
| 339 | |
| 340 | if (clear & TIOCM_RTS) |
| 341 | portdata->rts_state = 0; |
| 342 | if (clear & TIOCM_DTR) |
| 343 | portdata->dtr_state = 0; |
| 344 | return option_send_setup(port); |
| 345 | } |
| 346 | |
Andrew Morton | 7bb75ae | 2005-07-27 01:08:30 -0700 | [diff] [blame] | 347 | static int option_ioctl(struct usb_serial_port *port, struct file *file, |
| 348 | unsigned int cmd, unsigned long arg) |
Matthias Urlichs | 58cfe91 | 2005-05-23 17:00:48 -0700 | [diff] [blame] | 349 | { |
| 350 | return -ENOIOCTLCMD; |
| 351 | } |
| 352 | |
| 353 | /* Write */ |
Andrew Morton | 7bb75ae | 2005-07-27 01:08:30 -0700 | [diff] [blame] | 354 | static int option_write(struct usb_serial_port *port, |
| 355 | const unsigned char *buf, int count) |
Matthias Urlichs | 58cfe91 | 2005-05-23 17:00:48 -0700 | [diff] [blame] | 356 | { |
Matthias Urlichs | ba460e4 | 2005-07-14 00:33:47 -0700 | [diff] [blame] | 357 | struct option_port_private *portdata; |
| 358 | int i; |
| 359 | int left, todo; |
| 360 | struct urb *this_urb = NULL; /* spurious */ |
| 361 | int err; |
Matthias Urlichs | 58cfe91 | 2005-05-23 17:00:48 -0700 | [diff] [blame] | 362 | |
| 363 | portdata = usb_get_serial_port_data(port); |
| 364 | |
| 365 | dbg("%s: write (%d chars)", __FUNCTION__, count); |
| 366 | |
Matthias Urlichs | 58cfe91 | 2005-05-23 17:00:48 -0700 | [diff] [blame] | 367 | i = 0; |
| 368 | left = count; |
Matthias Urlichs | ba460e4 | 2005-07-14 00:33:47 -0700 | [diff] [blame] | 369 | for (i=0; left > 0 && i < N_OUT_URB; i++) { |
Matthias Urlichs | 58cfe91 | 2005-05-23 17:00:48 -0700 | [diff] [blame] | 370 | todo = left; |
| 371 | if (todo > OUT_BUFLEN) |
| 372 | todo = OUT_BUFLEN; |
| 373 | |
Matthias Urlichs | ba460e4 | 2005-07-14 00:33:47 -0700 | [diff] [blame] | 374 | this_urb = portdata->out_urbs[i]; |
Alan Stern | 59c2afa | 2007-06-05 16:46:26 -0700 | [diff] [blame] | 375 | if (test_and_set_bit(i, &portdata->out_busy)) { |
Andrew Morton | 7bb75ae | 2005-07-27 01:08:30 -0700 | [diff] [blame] | 376 | if (time_before(jiffies, |
| 377 | portdata->tx_start_time[i] + 10 * HZ)) |
Matthias Urlichs | 58cfe91 | 2005-05-23 17:00:48 -0700 | [diff] [blame] | 378 | continue; |
Matthias Urlichs | 58cfe91 | 2005-05-23 17:00:48 -0700 | [diff] [blame] | 379 | usb_unlink_urb(this_urb); |
Matthias Urlichs | ba460e4 | 2005-07-14 00:33:47 -0700 | [diff] [blame] | 380 | continue; |
Matthias Urlichs | 58cfe91 | 2005-05-23 17:00:48 -0700 | [diff] [blame] | 381 | } |
Matthias Urlichs | ba460e4 | 2005-07-14 00:33:47 -0700 | [diff] [blame] | 382 | if (this_urb->status != 0) |
Andrew Morton | 7bb75ae | 2005-07-27 01:08:30 -0700 | [diff] [blame] | 383 | dbg("usb_write %p failed (err=%d)", |
| 384 | this_urb, this_urb->status); |
Matthias Urlichs | 58cfe91 | 2005-05-23 17:00:48 -0700 | [diff] [blame] | 385 | |
Andrew Morton | 7bb75ae | 2005-07-27 01:08:30 -0700 | [diff] [blame] | 386 | dbg("%s: endpoint %d buf %d", __FUNCTION__, |
| 387 | usb_pipeendpoint(this_urb->pipe), i); |
Matthias Urlichs | 58cfe91 | 2005-05-23 17:00:48 -0700 | [diff] [blame] | 388 | |
Matthias Urlichs | ba460e4 | 2005-07-14 00:33:47 -0700 | [diff] [blame] | 389 | /* send the data */ |
Matthias Urlichs | 58cfe91 | 2005-05-23 17:00:48 -0700 | [diff] [blame] | 390 | memcpy (this_urb->transfer_buffer, buf, todo); |
Matthias Urlichs | 58cfe91 | 2005-05-23 17:00:48 -0700 | [diff] [blame] | 391 | this_urb->transfer_buffer_length = todo; |
| 392 | |
Matthias Urlichs | 58cfe91 | 2005-05-23 17:00:48 -0700 | [diff] [blame] | 393 | this_urb->dev = port->serial->dev; |
| 394 | err = usb_submit_urb(this_urb, GFP_ATOMIC); |
| 395 | if (err) { |
Andrew Morton | 7bb75ae | 2005-07-27 01:08:30 -0700 | [diff] [blame] | 396 | dbg("usb_submit_urb %p (write bulk) failed " |
| 397 | "(%d, has %d)", this_urb, |
| 398 | err, this_urb->status); |
Alan Stern | 59c2afa | 2007-06-05 16:46:26 -0700 | [diff] [blame] | 399 | clear_bit(i, &portdata->out_busy); |
Matthias Urlichs | 58cfe91 | 2005-05-23 17:00:48 -0700 | [diff] [blame] | 400 | continue; |
| 401 | } |
| 402 | portdata->tx_start_time[i] = jiffies; |
| 403 | buf += todo; |
| 404 | left -= todo; |
| 405 | } |
| 406 | |
| 407 | count -= left; |
Matthias Urlichs | 58cfe91 | 2005-05-23 17:00:48 -0700 | [diff] [blame] | 408 | dbg("%s: wrote (did %d)", __FUNCTION__, count); |
| 409 | return count; |
| 410 | } |
| 411 | |
David Howells | 7d12e78 | 2006-10-05 14:55:46 +0100 | [diff] [blame] | 412 | static void option_indat_callback(struct urb *urb) |
Matthias Urlichs | 58cfe91 | 2005-05-23 17:00:48 -0700 | [diff] [blame] | 413 | { |
Alan Cox | 33f0f88 | 2006-01-09 20:54:13 -0800 | [diff] [blame] | 414 | int err; |
Matthias Urlichs | 58cfe91 | 2005-05-23 17:00:48 -0700 | [diff] [blame] | 415 | int endpoint; |
| 416 | struct usb_serial_port *port; |
| 417 | struct tty_struct *tty; |
| 418 | unsigned char *data = urb->transfer_buffer; |
Greg Kroah-Hartman | d6977b5 | 2007-06-15 15:44:13 -0700 | [diff] [blame^] | 419 | int status = urb->status; |
Matthias Urlichs | 58cfe91 | 2005-05-23 17:00:48 -0700 | [diff] [blame] | 420 | |
| 421 | dbg("%s: %p", __FUNCTION__, urb); |
| 422 | |
| 423 | endpoint = usb_pipeendpoint(urb->pipe); |
| 424 | port = (struct usb_serial_port *) urb->context; |
| 425 | |
Greg Kroah-Hartman | d6977b5 | 2007-06-15 15:44:13 -0700 | [diff] [blame^] | 426 | if (status) { |
Matthias Urlichs | 58cfe91 | 2005-05-23 17:00:48 -0700 | [diff] [blame] | 427 | dbg("%s: nonzero status: %d on endpoint %02x.", |
Greg Kroah-Hartman | d6977b5 | 2007-06-15 15:44:13 -0700 | [diff] [blame^] | 428 | __FUNCTION__, status, endpoint); |
Matthias Urlichs | 58cfe91 | 2005-05-23 17:00:48 -0700 | [diff] [blame] | 429 | } else { |
| 430 | tty = port->tty; |
| 431 | if (urb->actual_length) { |
Alan Cox | 33f0f88 | 2006-01-09 20:54:13 -0800 | [diff] [blame] | 432 | tty_buffer_request_room(tty, urb->actual_length); |
| 433 | tty_insert_flip_string(tty, data, urb->actual_length); |
Matthias Urlichs | 58cfe91 | 2005-05-23 17:00:48 -0700 | [diff] [blame] | 434 | tty_flip_buffer_push(tty); |
| 435 | } else { |
| 436 | dbg("%s: empty read urb received", __FUNCTION__); |
| 437 | } |
| 438 | |
| 439 | /* Resubmit urb so we continue receiving */ |
Greg Kroah-Hartman | d6977b5 | 2007-06-15 15:44:13 -0700 | [diff] [blame^] | 440 | if (port->open_count && status != -ESHUTDOWN) { |
Matthias Urlichs | 58cfe91 | 2005-05-23 17:00:48 -0700 | [diff] [blame] | 441 | err = usb_submit_urb(urb, GFP_ATOMIC); |
| 442 | if (err) |
Andrew Morton | 7bb75ae | 2005-07-27 01:08:30 -0700 | [diff] [blame] | 443 | printk(KERN_ERR "%s: resubmit read urb failed. " |
| 444 | "(%d)", __FUNCTION__, err); |
Matthias Urlichs | 58cfe91 | 2005-05-23 17:00:48 -0700 | [diff] [blame] | 445 | } |
| 446 | } |
| 447 | return; |
| 448 | } |
| 449 | |
David Howells | 7d12e78 | 2006-10-05 14:55:46 +0100 | [diff] [blame] | 450 | static void option_outdat_callback(struct urb *urb) |
Matthias Urlichs | 58cfe91 | 2005-05-23 17:00:48 -0700 | [diff] [blame] | 451 | { |
| 452 | struct usb_serial_port *port; |
Alan Stern | 59c2afa | 2007-06-05 16:46:26 -0700 | [diff] [blame] | 453 | struct option_port_private *portdata; |
| 454 | int i; |
Matthias Urlichs | 58cfe91 | 2005-05-23 17:00:48 -0700 | [diff] [blame] | 455 | |
| 456 | dbg("%s", __FUNCTION__); |
| 457 | |
| 458 | port = (struct usb_serial_port *) urb->context; |
| 459 | |
Pete Zaitcev | cf2c748 | 2006-05-22 21:58:49 -0700 | [diff] [blame] | 460 | usb_serial_port_softint(port); |
Alan Stern | 59c2afa | 2007-06-05 16:46:26 -0700 | [diff] [blame] | 461 | |
| 462 | portdata = usb_get_serial_port_data(port); |
| 463 | for (i = 0; i < N_OUT_URB; ++i) { |
| 464 | if (portdata->out_urbs[i] == urb) { |
| 465 | smp_mb__before_clear_bit(); |
| 466 | clear_bit(i, &portdata->out_busy); |
| 467 | break; |
| 468 | } |
| 469 | } |
Matthias Urlichs | 58cfe91 | 2005-05-23 17:00:48 -0700 | [diff] [blame] | 470 | } |
| 471 | |
David Howells | 7d12e78 | 2006-10-05 14:55:46 +0100 | [diff] [blame] | 472 | static void option_instat_callback(struct urb *urb) |
Matthias Urlichs | 58cfe91 | 2005-05-23 17:00:48 -0700 | [diff] [blame] | 473 | { |
| 474 | int err; |
Greg Kroah-Hartman | d6977b5 | 2007-06-15 15:44:13 -0700 | [diff] [blame^] | 475 | int status = urb->status; |
Matthias Urlichs | 58cfe91 | 2005-05-23 17:00:48 -0700 | [diff] [blame] | 476 | struct usb_serial_port *port = (struct usb_serial_port *) urb->context; |
| 477 | struct option_port_private *portdata = usb_get_serial_port_data(port); |
| 478 | struct usb_serial *serial = port->serial; |
| 479 | |
| 480 | dbg("%s", __FUNCTION__); |
| 481 | dbg("%s: urb %p port %p has data %p", __FUNCTION__,urb,port,portdata); |
| 482 | |
Greg Kroah-Hartman | d6977b5 | 2007-06-15 15:44:13 -0700 | [diff] [blame^] | 483 | if (status == 0) { |
Matthias Urlichs | 58cfe91 | 2005-05-23 17:00:48 -0700 | [diff] [blame] | 484 | struct usb_ctrlrequest *req_pkt = |
| 485 | (struct usb_ctrlrequest *)urb->transfer_buffer; |
| 486 | |
| 487 | if (!req_pkt) { |
| 488 | dbg("%s: NULL req_pkt\n", __FUNCTION__); |
| 489 | return; |
| 490 | } |
Andrew Morton | 7bb75ae | 2005-07-27 01:08:30 -0700 | [diff] [blame] | 491 | if ((req_pkt->bRequestType == 0xA1) && |
| 492 | (req_pkt->bRequest == 0x20)) { |
Matthias Urlichs | 58cfe91 | 2005-05-23 17:00:48 -0700 | [diff] [blame] | 493 | int old_dcd_state; |
| 494 | unsigned char signals = *((unsigned char *) |
Andrew Morton | 7bb75ae | 2005-07-27 01:08:30 -0700 | [diff] [blame] | 495 | urb->transfer_buffer + |
| 496 | sizeof(struct usb_ctrlrequest)); |
Matthias Urlichs | 58cfe91 | 2005-05-23 17:00:48 -0700 | [diff] [blame] | 497 | |
| 498 | dbg("%s: signal x%x", __FUNCTION__, signals); |
| 499 | |
| 500 | old_dcd_state = portdata->dcd_state; |
| 501 | portdata->cts_state = 1; |
| 502 | portdata->dcd_state = ((signals & 0x01) ? 1 : 0); |
| 503 | portdata->dsr_state = ((signals & 0x02) ? 1 : 0); |
| 504 | portdata->ri_state = ((signals & 0x08) ? 1 : 0); |
| 505 | |
Andrew Morton | 7bb75ae | 2005-07-27 01:08:30 -0700 | [diff] [blame] | 506 | if (port->tty && !C_CLOCAL(port->tty) && |
| 507 | old_dcd_state && !portdata->dcd_state) |
Matthias Urlichs | 58cfe91 | 2005-05-23 17:00:48 -0700 | [diff] [blame] | 508 | tty_hangup(port->tty); |
Andrew Morton | 7bb75ae | 2005-07-27 01:08:30 -0700 | [diff] [blame] | 509 | } else { |
| 510 | dbg("%s: type %x req %x", __FUNCTION__, |
| 511 | req_pkt->bRequestType,req_pkt->bRequest); |
| 512 | } |
Matthias Urlichs | 58cfe91 | 2005-05-23 17:00:48 -0700 | [diff] [blame] | 513 | } else |
Greg Kroah-Hartman | d6977b5 | 2007-06-15 15:44:13 -0700 | [diff] [blame^] | 514 | dbg("%s: error %d", __FUNCTION__, status); |
Matthias Urlichs | 58cfe91 | 2005-05-23 17:00:48 -0700 | [diff] [blame] | 515 | |
| 516 | /* Resubmit urb so we continue receiving IRQ data */ |
Greg Kroah-Hartman | d6977b5 | 2007-06-15 15:44:13 -0700 | [diff] [blame^] | 517 | if (status != -ESHUTDOWN) { |
Matthias Urlichs | 58cfe91 | 2005-05-23 17:00:48 -0700 | [diff] [blame] | 518 | urb->dev = serial->dev; |
| 519 | err = usb_submit_urb(urb, GFP_ATOMIC); |
| 520 | if (err) |
Andrew Morton | 7bb75ae | 2005-07-27 01:08:30 -0700 | [diff] [blame] | 521 | dbg("%s: resubmit intr urb failed. (%d)", |
| 522 | __FUNCTION__, err); |
Matthias Urlichs | 58cfe91 | 2005-05-23 17:00:48 -0700 | [diff] [blame] | 523 | } |
| 524 | } |
| 525 | |
Andrew Morton | 7bb75ae | 2005-07-27 01:08:30 -0700 | [diff] [blame] | 526 | static int option_write_room(struct usb_serial_port *port) |
Matthias Urlichs | 58cfe91 | 2005-05-23 17:00:48 -0700 | [diff] [blame] | 527 | { |
| 528 | struct option_port_private *portdata; |
| 529 | int i; |
| 530 | int data_len = 0; |
| 531 | struct urb *this_urb; |
| 532 | |
| 533 | portdata = usb_get_serial_port_data(port); |
| 534 | |
Matthias Urlichs | ba460e4 | 2005-07-14 00:33:47 -0700 | [diff] [blame] | 535 | for (i=0; i < N_OUT_URB; i++) { |
Matthias Urlichs | 58cfe91 | 2005-05-23 17:00:48 -0700 | [diff] [blame] | 536 | this_urb = portdata->out_urbs[i]; |
Alan Stern | 59c2afa | 2007-06-05 16:46:26 -0700 | [diff] [blame] | 537 | if (this_urb && !test_bit(i, &portdata->out_busy)) |
Matthias Urlichs | 58cfe91 | 2005-05-23 17:00:48 -0700 | [diff] [blame] | 538 | data_len += OUT_BUFLEN; |
Matthias Urlichs | ba460e4 | 2005-07-14 00:33:47 -0700 | [diff] [blame] | 539 | } |
Matthias Urlichs | 58cfe91 | 2005-05-23 17:00:48 -0700 | [diff] [blame] | 540 | |
| 541 | dbg("%s: %d", __FUNCTION__, data_len); |
| 542 | return data_len; |
| 543 | } |
| 544 | |
Andrew Morton | 7bb75ae | 2005-07-27 01:08:30 -0700 | [diff] [blame] | 545 | static int option_chars_in_buffer(struct usb_serial_port *port) |
Matthias Urlichs | 58cfe91 | 2005-05-23 17:00:48 -0700 | [diff] [blame] | 546 | { |
| 547 | struct option_port_private *portdata; |
| 548 | int i; |
| 549 | int data_len = 0; |
| 550 | struct urb *this_urb; |
| 551 | |
| 552 | portdata = usb_get_serial_port_data(port); |
| 553 | |
Matthias Urlichs | ba460e4 | 2005-07-14 00:33:47 -0700 | [diff] [blame] | 554 | for (i=0; i < N_OUT_URB; i++) { |
Matthias Urlichs | 58cfe91 | 2005-05-23 17:00:48 -0700 | [diff] [blame] | 555 | this_urb = portdata->out_urbs[i]; |
Alan Stern | 59c2afa | 2007-06-05 16:46:26 -0700 | [diff] [blame] | 556 | if (this_urb && test_bit(i, &portdata->out_busy)) |
Matthias Urlichs | 58cfe91 | 2005-05-23 17:00:48 -0700 | [diff] [blame] | 557 | data_len += this_urb->transfer_buffer_length; |
Matthias Urlichs | ba460e4 | 2005-07-14 00:33:47 -0700 | [diff] [blame] | 558 | } |
Matthias Urlichs | 58cfe91 | 2005-05-23 17:00:48 -0700 | [diff] [blame] | 559 | dbg("%s: %d", __FUNCTION__, data_len); |
| 560 | return data_len; |
| 561 | } |
| 562 | |
Andrew Morton | 7bb75ae | 2005-07-27 01:08:30 -0700 | [diff] [blame] | 563 | static int option_open(struct usb_serial_port *port, struct file *filp) |
Matthias Urlichs | 58cfe91 | 2005-05-23 17:00:48 -0700 | [diff] [blame] | 564 | { |
Matthias Urlichs | ba460e4 | 2005-07-14 00:33:47 -0700 | [diff] [blame] | 565 | struct option_port_private *portdata; |
| 566 | struct usb_serial *serial = port->serial; |
| 567 | int i, err; |
| 568 | struct urb *urb; |
Matthias Urlichs | 58cfe91 | 2005-05-23 17:00:48 -0700 | [diff] [blame] | 569 | |
| 570 | portdata = usb_get_serial_port_data(port); |
| 571 | |
| 572 | dbg("%s", __FUNCTION__); |
| 573 | |
| 574 | /* Set some sane defaults */ |
| 575 | portdata->rts_state = 1; |
| 576 | portdata->dtr_state = 1; |
| 577 | |
| 578 | /* Reset low level data toggle and start reading from endpoints */ |
| 579 | for (i = 0; i < N_IN_URB; i++) { |
| 580 | urb = portdata->in_urbs[i]; |
| 581 | if (! urb) |
| 582 | continue; |
| 583 | if (urb->dev != serial->dev) { |
Andrew Morton | 7bb75ae | 2005-07-27 01:08:30 -0700 | [diff] [blame] | 584 | dbg("%s: dev %p != %p", __FUNCTION__, |
| 585 | urb->dev, serial->dev); |
Matthias Urlichs | 58cfe91 | 2005-05-23 17:00:48 -0700 | [diff] [blame] | 586 | continue; |
| 587 | } |
| 588 | |
Andrew Morton | 7bb75ae | 2005-07-27 01:08:30 -0700 | [diff] [blame] | 589 | /* |
| 590 | * make sure endpoint data toggle is synchronized with the |
| 591 | * device |
| 592 | */ |
Matthias Urlichs | 58cfe91 | 2005-05-23 17:00:48 -0700 | [diff] [blame] | 593 | usb_clear_halt(urb->dev, urb->pipe); |
| 594 | |
| 595 | err = usb_submit_urb(urb, GFP_KERNEL); |
| 596 | if (err) { |
Andrew Morton | 7bb75ae | 2005-07-27 01:08:30 -0700 | [diff] [blame] | 597 | dbg("%s: submit urb %d failed (%d) %d", |
| 598 | __FUNCTION__, i, err, |
Matthias Urlichs | 58cfe91 | 2005-05-23 17:00:48 -0700 | [diff] [blame] | 599 | urb->transfer_buffer_length); |
| 600 | } |
| 601 | } |
| 602 | |
| 603 | /* Reset low level data toggle on out endpoints */ |
| 604 | for (i = 0; i < N_OUT_URB; i++) { |
| 605 | urb = portdata->out_urbs[i]; |
| 606 | if (! urb) |
| 607 | continue; |
| 608 | urb->dev = serial->dev; |
Andrew Morton | 7bb75ae | 2005-07-27 01:08:30 -0700 | [diff] [blame] | 609 | /* usb_settoggle(urb->dev, usb_pipeendpoint(urb->pipe), |
| 610 | usb_pipeout(urb->pipe), 0); */ |
Matthias Urlichs | 58cfe91 | 2005-05-23 17:00:48 -0700 | [diff] [blame] | 611 | } |
| 612 | |
| 613 | port->tty->low_latency = 1; |
| 614 | |
| 615 | option_send_setup(port); |
| 616 | |
| 617 | return (0); |
| 618 | } |
| 619 | |
Andrew Morton | 7bb75ae | 2005-07-27 01:08:30 -0700 | [diff] [blame] | 620 | static void option_close(struct usb_serial_port *port, struct file *filp) |
Matthias Urlichs | 58cfe91 | 2005-05-23 17:00:48 -0700 | [diff] [blame] | 621 | { |
Matthias Urlichs | ba460e4 | 2005-07-14 00:33:47 -0700 | [diff] [blame] | 622 | int i; |
| 623 | struct usb_serial *serial = port->serial; |
| 624 | struct option_port_private *portdata; |
Matthias Urlichs | 58cfe91 | 2005-05-23 17:00:48 -0700 | [diff] [blame] | 625 | |
| 626 | dbg("%s", __FUNCTION__); |
| 627 | portdata = usb_get_serial_port_data(port); |
| 628 | |
| 629 | portdata->rts_state = 0; |
| 630 | portdata->dtr_state = 0; |
| 631 | |
| 632 | if (serial->dev) { |
| 633 | option_send_setup(port); |
| 634 | |
| 635 | /* Stop reading/writing urbs */ |
| 636 | for (i = 0; i < N_IN_URB; i++) |
Oliver Neukum | 7d28e74 | 2007-03-20 13:41:21 +0100 | [diff] [blame] | 637 | usb_kill_urb(portdata->in_urbs[i]); |
Matthias Urlichs | 58cfe91 | 2005-05-23 17:00:48 -0700 | [diff] [blame] | 638 | for (i = 0; i < N_OUT_URB; i++) |
Oliver Neukum | 7d28e74 | 2007-03-20 13:41:21 +0100 | [diff] [blame] | 639 | usb_kill_urb(portdata->out_urbs[i]); |
Matthias Urlichs | 58cfe91 | 2005-05-23 17:00:48 -0700 | [diff] [blame] | 640 | } |
| 641 | port->tty = NULL; |
| 642 | } |
| 643 | |
Matthias Urlichs | 58cfe91 | 2005-05-23 17:00:48 -0700 | [diff] [blame] | 644 | /* Helper functions used by option_setup_urbs */ |
Andrew Morton | 7bb75ae | 2005-07-27 01:08:30 -0700 | [diff] [blame] | 645 | static struct urb *option_setup_urb(struct usb_serial *serial, int endpoint, |
| 646 | int dir, void *ctx, char *buf, int len, |
David Howells | 7d12e78 | 2006-10-05 14:55:46 +0100 | [diff] [blame] | 647 | void (*callback)(struct urb *)) |
Matthias Urlichs | 58cfe91 | 2005-05-23 17:00:48 -0700 | [diff] [blame] | 648 | { |
| 649 | struct urb *urb; |
| 650 | |
| 651 | if (endpoint == -1) |
| 652 | return NULL; /* endpoint not needed */ |
| 653 | |
| 654 | urb = usb_alloc_urb(0, GFP_KERNEL); /* No ISO */ |
| 655 | if (urb == NULL) { |
| 656 | dbg("%s: alloc for endpoint %d failed.", __FUNCTION__, endpoint); |
| 657 | return NULL; |
| 658 | } |
| 659 | |
| 660 | /* Fill URB using supplied data. */ |
| 661 | usb_fill_bulk_urb(urb, serial->dev, |
| 662 | usb_sndbulkpipe(serial->dev, endpoint) | dir, |
| 663 | buf, len, callback, ctx); |
| 664 | |
| 665 | return urb; |
| 666 | } |
| 667 | |
| 668 | /* Setup urbs */ |
Andrew Morton | 7bb75ae | 2005-07-27 01:08:30 -0700 | [diff] [blame] | 669 | static void option_setup_urbs(struct usb_serial *serial) |
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 | int i,j; |
Matthias Urlichs | ba460e4 | 2005-07-14 00:33:47 -0700 | [diff] [blame] | 672 | struct usb_serial_port *port; |
| 673 | struct option_port_private *portdata; |
Matthias Urlichs | 58cfe91 | 2005-05-23 17:00:48 -0700 | [diff] [blame] | 674 | |
| 675 | dbg("%s", __FUNCTION__); |
| 676 | |
Matthias Urlichs | 14f76cc | 2006-06-02 11:48:56 +0200 | [diff] [blame] | 677 | for (i = 0; i < serial->num_ports; i++) { |
| 678 | port = serial->port[i]; |
| 679 | portdata = usb_get_serial_port_data(port); |
Matthias Urlichs | 58cfe91 | 2005-05-23 17:00:48 -0700 | [diff] [blame] | 680 | |
| 681 | /* Do indat endpoints first */ |
Matthias Urlichs | 14f76cc | 2006-06-02 11:48:56 +0200 | [diff] [blame] | 682 | for (j = 0; j < N_IN_URB; ++j) { |
| 683 | portdata->in_urbs[j] = option_setup_urb (serial, |
| 684 | port->bulk_in_endpointAddress, USB_DIR_IN, port, |
| 685 | portdata->in_buffer[j], IN_BUFLEN, option_indat_callback); |
| 686 | } |
Matthias Urlichs | 58cfe91 | 2005-05-23 17:00:48 -0700 | [diff] [blame] | 687 | |
Matthias Urlichs | 14f76cc | 2006-06-02 11:48:56 +0200 | [diff] [blame] | 688 | /* outdat endpoints */ |
| 689 | for (j = 0; j < N_OUT_URB; ++j) { |
| 690 | portdata->out_urbs[j] = option_setup_urb (serial, |
| 691 | port->bulk_out_endpointAddress, USB_DIR_OUT, port, |
| 692 | portdata->out_buffer[j], OUT_BUFLEN, option_outdat_callback); |
| 693 | } |
Matthias Urlichs | 58cfe91 | 2005-05-23 17:00:48 -0700 | [diff] [blame] | 694 | } |
| 695 | } |
| 696 | |
Andrew Morton | 7bb75ae | 2005-07-27 01:08:30 -0700 | [diff] [blame] | 697 | static int option_send_setup(struct usb_serial_port *port) |
Matthias Urlichs | 58cfe91 | 2005-05-23 17:00:48 -0700 | [diff] [blame] | 698 | { |
| 699 | struct usb_serial *serial = port->serial; |
| 700 | struct option_port_private *portdata; |
| 701 | |
| 702 | dbg("%s", __FUNCTION__); |
| 703 | |
Miguel Angel Alvarez | 8c15271 | 2006-12-14 19:49:35 +0100 | [diff] [blame] | 704 | if (port->number != 0) |
| 705 | return 0; |
| 706 | |
Matthias Urlichs | 58cfe91 | 2005-05-23 17:00:48 -0700 | [diff] [blame] | 707 | portdata = usb_get_serial_port_data(port); |
| 708 | |
| 709 | if (port->tty) { |
| 710 | int val = 0; |
| 711 | if (portdata->dtr_state) |
| 712 | val |= 0x01; |
| 713 | if (portdata->rts_state) |
| 714 | val |= 0x02; |
| 715 | |
Andrew Morton | 7bb75ae | 2005-07-27 01:08:30 -0700 | [diff] [blame] | 716 | return usb_control_msg(serial->dev, |
| 717 | usb_rcvctrlpipe(serial->dev, 0), |
| 718 | 0x22,0x21,val,0,NULL,0,USB_CTRL_SET_TIMEOUT); |
Matthias Urlichs | 58cfe91 | 2005-05-23 17:00:48 -0700 | [diff] [blame] | 719 | } |
| 720 | |
| 721 | return 0; |
| 722 | } |
| 723 | |
Andrew Morton | 7bb75ae | 2005-07-27 01:08:30 -0700 | [diff] [blame] | 724 | static int option_startup(struct usb_serial *serial) |
Matthias Urlichs | 58cfe91 | 2005-05-23 17:00:48 -0700 | [diff] [blame] | 725 | { |
Matthias Urlichs | ba460e4 | 2005-07-14 00:33:47 -0700 | [diff] [blame] | 726 | int i, err; |
| 727 | struct usb_serial_port *port; |
| 728 | struct option_port_private *portdata; |
Matthias Urlichs | 58cfe91 | 2005-05-23 17:00:48 -0700 | [diff] [blame] | 729 | |
| 730 | dbg("%s", __FUNCTION__); |
| 731 | |
| 732 | /* Now setup per port private data */ |
| 733 | for (i = 0; i < serial->num_ports; i++) { |
| 734 | port = serial->port[i]; |
Eric Sesterhenn | 80b6ca4 | 2006-02-27 21:29:43 +0100 | [diff] [blame] | 735 | portdata = kzalloc(sizeof(*portdata), GFP_KERNEL); |
Matthias Urlichs | 58cfe91 | 2005-05-23 17:00:48 -0700 | [diff] [blame] | 736 | if (!portdata) { |
Andrew Morton | 7bb75ae | 2005-07-27 01:08:30 -0700 | [diff] [blame] | 737 | dbg("%s: kmalloc for option_port_private (%d) failed!.", |
| 738 | __FUNCTION__, i); |
Matthias Urlichs | 58cfe91 | 2005-05-23 17:00:48 -0700 | [diff] [blame] | 739 | return (1); |
| 740 | } |
Matthias Urlichs | 58cfe91 | 2005-05-23 17:00:48 -0700 | [diff] [blame] | 741 | |
| 742 | usb_set_serial_port_data(port, portdata); |
| 743 | |
| 744 | if (! port->interrupt_in_urb) |
| 745 | continue; |
| 746 | err = usb_submit_urb(port->interrupt_in_urb, GFP_KERNEL); |
| 747 | if (err) |
Andrew Morton | 7bb75ae | 2005-07-27 01:08:30 -0700 | [diff] [blame] | 748 | dbg("%s: submit irq_in urb failed %d", |
| 749 | __FUNCTION__, err); |
Matthias Urlichs | 58cfe91 | 2005-05-23 17:00:48 -0700 | [diff] [blame] | 750 | } |
| 751 | |
| 752 | option_setup_urbs(serial); |
| 753 | |
| 754 | return (0); |
| 755 | } |
| 756 | |
Andrew Morton | 7bb75ae | 2005-07-27 01:08:30 -0700 | [diff] [blame] | 757 | static void option_shutdown(struct usb_serial *serial) |
Matthias Urlichs | 58cfe91 | 2005-05-23 17:00:48 -0700 | [diff] [blame] | 758 | { |
Matthias Urlichs | ba460e4 | 2005-07-14 00:33:47 -0700 | [diff] [blame] | 759 | int i, j; |
| 760 | struct usb_serial_port *port; |
| 761 | struct option_port_private *portdata; |
Matthias Urlichs | 58cfe91 | 2005-05-23 17:00:48 -0700 | [diff] [blame] | 762 | |
| 763 | dbg("%s", __FUNCTION__); |
| 764 | |
| 765 | /* Stop reading/writing urbs */ |
| 766 | for (i = 0; i < serial->num_ports; ++i) { |
| 767 | port = serial->port[i]; |
| 768 | portdata = usb_get_serial_port_data(port); |
| 769 | for (j = 0; j < N_IN_URB; j++) |
Oliver Neukum | 7d28e74 | 2007-03-20 13:41:21 +0100 | [diff] [blame] | 770 | usb_kill_urb(portdata->in_urbs[j]); |
Matthias Urlichs | 58cfe91 | 2005-05-23 17:00:48 -0700 | [diff] [blame] | 771 | for (j = 0; j < N_OUT_URB; j++) |
Oliver Neukum | 7d28e74 | 2007-03-20 13:41:21 +0100 | [diff] [blame] | 772 | usb_kill_urb(portdata->out_urbs[j]); |
Matthias Urlichs | 58cfe91 | 2005-05-23 17:00:48 -0700 | [diff] [blame] | 773 | } |
| 774 | |
| 775 | /* Now free them */ |
| 776 | for (i = 0; i < serial->num_ports; ++i) { |
| 777 | port = serial->port[i]; |
| 778 | portdata = usb_get_serial_port_data(port); |
| 779 | |
| 780 | for (j = 0; j < N_IN_URB; j++) { |
| 781 | if (portdata->in_urbs[j]) { |
| 782 | usb_free_urb(portdata->in_urbs[j]); |
| 783 | portdata->in_urbs[j] = NULL; |
| 784 | } |
| 785 | } |
| 786 | for (j = 0; j < N_OUT_URB; j++) { |
| 787 | if (portdata->out_urbs[j]) { |
| 788 | usb_free_urb(portdata->out_urbs[j]); |
| 789 | portdata->out_urbs[j] = NULL; |
| 790 | } |
| 791 | } |
| 792 | } |
| 793 | |
| 794 | /* Now free per port private data */ |
| 795 | for (i = 0; i < serial->num_ports; i++) { |
| 796 | port = serial->port[i]; |
| 797 | kfree(usb_get_serial_port_data(port)); |
| 798 | } |
| 799 | } |
| 800 | |
| 801 | MODULE_AUTHOR(DRIVER_AUTHOR); |
| 802 | MODULE_DESCRIPTION(DRIVER_DESC); |
| 803 | MODULE_VERSION(DRIVER_VERSION); |
| 804 | MODULE_LICENSE("GPL"); |
| 805 | |
Matthias Urlichs | ba460e4 | 2005-07-14 00:33:47 -0700 | [diff] [blame] | 806 | #ifdef CONFIG_USB_DEBUG |
Matthias Urlichs | 58cfe91 | 2005-05-23 17:00:48 -0700 | [diff] [blame] | 807 | module_param(debug, bool, S_IRUGO | S_IWUSR); |
| 808 | MODULE_PARM_DESC(debug, "Debug messages"); |
Matthias Urlichs | ba460e4 | 2005-07-14 00:33:47 -0700 | [diff] [blame] | 809 | #endif |
Matthias Urlichs | 58cfe91 | 2005-05-23 17:00:48 -0700 | [diff] [blame] | 810 | |