blob: b18179bda0d8a0f7cd46b436e282ad08096e90d4 [file] [log] [blame]
Kevin Lloyd69de51f2006-06-30 11:17:55 -07001/*
Kevin Lloyd033a3fb2006-10-13 23:53:21 -07002 USB Driver for Sierra Wireless
3
Elina Pasheva40d2ff32009-04-29 10:26:46 -07004 Copyright (C) 2006, 2007, 2008 Kevin Lloyd <klloyd@sierrawireless.com>,
5
6 Copyright (C) 2008, 2009 Elina Pasheva, Matthew Safar, Rory Filer
7 <linux@sierrawireless.com>
Kevin Lloyd033a3fb2006-10-13 23:53:21 -07008
9 IMPORTANT DISCLAIMER: This driver is not commercially supported by
10 Sierra Wireless. Use at your own risk.
11
12 This driver is free software; you can redistribute it and/or modify
13 it under the terms of Version 2 of the GNU General Public License as
14 published by the Free Software Foundation.
15
16 Portions based on the option driver by Matthias Urlichs <smurf@smurf.noris.de>
17 Whom based his on the Keyspan driver by Hugh Blemings <hugh@blemings.org>
Kevin Lloyd033a3fb2006-10-13 23:53:21 -070018*/
Elina Pasheva3a2b8082009-11-04 10:25:48 -080019/* Uncomment to log function calls */
20/* #define DEBUG */
21#define DRIVER_VERSION "v.1.7.16"
Elina Pasheva40d2ff32009-04-29 10:26:46 -070022#define DRIVER_AUTHOR "Kevin Lloyd, Elina Pasheva, Matthew Safar, Rory Filer"
Kevin Lloyd033a3fb2006-10-13 23:53:21 -070023#define DRIVER_DESC "USB Driver for Sierra Wireless USB modems"
Kevin Lloyd69de51f2006-06-30 11:17:55 -070024
25#include <linux/kernel.h>
Kevin Lloyd033a3fb2006-10-13 23:53:21 -070026#include <linux/jiffies.h>
27#include <linux/errno.h>
Kevin Lloyd69de51f2006-06-30 11:17:55 -070028#include <linux/tty.h>
Tejun Heo5a0e3ad2010-03-24 17:04:11 +090029#include <linux/slab.h>
Kevin Lloyd033a3fb2006-10-13 23:53:21 -070030#include <linux/tty_flip.h>
Kevin Lloyd69de51f2006-06-30 11:17:55 -070031#include <linux/module.h>
32#include <linux/usb.h>
Greg Kroah-Hartmana9698882006-07-11 21:22:58 -070033#include <linux/usb/serial.h>
Kevin Lloyd69de51f2006-06-30 11:17:55 -070034
Kevin Lloyd228426e2008-01-10 11:11:04 -080035#define SWIMS_USB_REQUEST_SetPower 0x00
36#define SWIMS_USB_REQUEST_SetNmea 0x07
Kevin Lloyd112225b2007-07-16 13:49:27 -070037
Elina Pasheva3a2b8082009-11-04 10:25:48 -080038#define N_IN_URB_HM 8
39#define N_OUT_URB_HM 64
40#define N_IN_URB 4
41#define N_OUT_URB 4
Kevin Lloyd112225b2007-07-16 13:49:27 -070042#define IN_BUFLEN 4096
43
Elina Pasheva40d2ff32009-04-29 10:26:46 -070044#define MAX_TRANSFER (PAGE_SIZE - 512)
45/* MAX_TRANSFER is chosen so that the VM is not stressed by
46 allocations > PAGE_SIZE and the number of packets in a page
47 is an integer 512 is the largest possible packet on EHCI */
48
Kevin Lloyd112225b2007-07-16 13:49:27 -070049static int debug;
Kevin Lloyd228426e2008-01-10 11:11:04 -080050static int nmea;
Kevin Lloyd112225b2007-07-16 13:49:27 -070051
Elina Pasheva4db22992009-06-11 14:32:01 +010052/* Used in interface blacklisting */
53struct sierra_iface_info {
54 const u32 infolen; /* number of interface numbers on blacklist */
55 const u8 *ifaceinfo; /* pointer to the array holding the numbers */
56};
57
Oliver Neukume6929a92009-09-04 23:19:53 +020058struct sierra_intf_private {
59 spinlock_t susp_lock;
60 unsigned int suspended:1;
61 int in_flight;
62};
63
Adrian Bunk82a24e62007-07-29 16:59:02 +020064static int sierra_set_power_state(struct usb_device *udev, __u16 swiState)
Kevin Lloyd112225b2007-07-16 13:49:27 -070065{
66 int result;
Elina Pasheva5d44b362009-04-27 18:41:52 -070067 dev_dbg(&udev->dev, "%s\n", __func__);
Kevin Lloyd112225b2007-07-16 13:49:27 -070068 result = usb_control_msg(udev, usb_sndctrlpipe(udev, 0),
Kevin Lloyd228426e2008-01-10 11:11:04 -080069 SWIMS_USB_REQUEST_SetPower, /* __u8 request */
Kevin Lloydf3564de2008-03-28 10:05:08 -070070 USB_TYPE_VENDOR, /* __u8 request type */
Kevin Lloyd228426e2008-01-10 11:11:04 -080071 swiState, /* __u16 value */
72 0, /* __u16 index */
73 NULL, /* void *data */
74 0, /* __u16 size */
75 USB_CTRL_SET_TIMEOUT); /* int timeout */
Kevin Lloyd112225b2007-07-16 13:49:27 -070076 return result;
77}
78
Kevin Lloyd228426e2008-01-10 11:11:04 -080079static int sierra_vsc_set_nmea(struct usb_device *udev, __u16 enable)
Kevin Lloyd112225b2007-07-16 13:49:27 -070080{
81 int result;
Elina Pasheva5d44b362009-04-27 18:41:52 -070082 dev_dbg(&udev->dev, "%s\n", __func__);
Kevin Lloyd228426e2008-01-10 11:11:04 -080083 result = usb_control_msg(udev, usb_sndctrlpipe(udev, 0),
84 SWIMS_USB_REQUEST_SetNmea, /* __u8 request */
Kevin Lloydf3564de2008-03-28 10:05:08 -070085 USB_TYPE_VENDOR, /* __u8 request type */
Kevin Lloyd228426e2008-01-10 11:11:04 -080086 enable, /* __u16 value */
87 0x0000, /* __u16 index */
88 NULL, /* void *data */
89 0, /* __u16 size */
90 USB_CTRL_SET_TIMEOUT); /* int timeout */
91 return result;
92}
Kevin Lloyd112225b2007-07-16 13:49:27 -070093
Kevin Lloyd228426e2008-01-10 11:11:04 -080094static int sierra_calc_num_ports(struct usb_serial *serial)
95{
Elina Pasheva9636b682009-05-12 13:12:54 -070096 int num_ports = 0;
97 u8 ifnum, numendpoints;
98
Elina Pasheva5d44b362009-04-27 18:41:52 -070099 dev_dbg(&serial->dev->dev, "%s\n", __func__);
Kevin Lloyd112225b2007-07-16 13:49:27 -0700100
Elina Pasheva9636b682009-05-12 13:12:54 -0700101 ifnum = serial->interface->cur_altsetting->desc.bInterfaceNumber;
102 numendpoints = serial->interface->cur_altsetting->desc.bNumEndpoints;
Kevin Lloyd228426e2008-01-10 11:11:04 -0800103
Elina Pasheva9636b682009-05-12 13:12:54 -0700104 /* Dummy interface present on some SKUs should be ignored */
105 if (ifnum == 0x99)
106 num_ports = 0;
107 else if (numendpoints <= 3)
108 num_ports = 1;
109 else
110 num_ports = (numendpoints-1)/2;
111 return num_ports;
Kevin Lloyd228426e2008-01-10 11:11:04 -0800112}
113
Elina Pasheva4db22992009-06-11 14:32:01 +0100114static int is_blacklisted(const u8 ifnum,
115 const struct sierra_iface_info *blacklist)
116{
117 const u8 *info;
118 int i;
119
120 if (blacklist) {
121 info = blacklist->ifaceinfo;
122
123 for (i = 0; i < blacklist->infolen; i++) {
124 if (info[i] == ifnum)
125 return 1;
126 }
127 }
128 return 0;
129}
130
Elina Pasheva3a2b8082009-11-04 10:25:48 -0800131static int is_himemory(const u8 ifnum,
132 const struct sierra_iface_info *himemorylist)
133{
134 const u8 *info;
135 int i;
136
137 if (himemorylist) {
138 info = himemorylist->ifaceinfo;
139
140 for (i=0; i < himemorylist->infolen; i++) {
141 if (info[i] == ifnum)
142 return 1;
143 }
144 }
145 return 0;
146}
147
Kevin Lloyd71069672008-04-02 11:24:56 -0700148static int sierra_calc_interface(struct usb_serial *serial)
149{
Kevin Lloyd4e0fee82008-07-10 14:14:47 -0700150 int interface;
151 struct usb_interface *p_interface;
152 struct usb_host_interface *p_host_interface;
Elina Pasheva5d44b362009-04-27 18:41:52 -0700153 dev_dbg(&serial->dev->dev, "%s\n", __func__);
Kevin Lloyd71069672008-04-02 11:24:56 -0700154
Kevin Lloyd4e0fee82008-07-10 14:14:47 -0700155 /* Get the interface structure pointer from the serial struct */
156 p_interface = serial->interface;
Kevin Lloyd71069672008-04-02 11:24:56 -0700157
Kevin Lloyd4e0fee82008-07-10 14:14:47 -0700158 /* Get a pointer to the host interface structure */
159 p_host_interface = p_interface->cur_altsetting;
Kevin Lloyd71069672008-04-02 11:24:56 -0700160
Kevin Lloyd4e0fee82008-07-10 14:14:47 -0700161 /* read the interface descriptor for this active altsetting
162 * to find out the interface number we are on
163 */
164 interface = p_host_interface->desc.bInterfaceNumber;
Kevin Lloyd71069672008-04-02 11:24:56 -0700165
Kevin Lloyd4e0fee82008-07-10 14:14:47 -0700166 return interface;
Kevin Lloyd71069672008-04-02 11:24:56 -0700167}
168
Kevin Lloyd228426e2008-01-10 11:11:04 -0800169static int sierra_probe(struct usb_serial *serial,
170 const struct usb_device_id *id)
171{
172 int result = 0;
173 struct usb_device *udev;
Oliver Neukume6929a92009-09-04 23:19:53 +0200174 struct sierra_intf_private *data;
Kevin Lloyd228426e2008-01-10 11:11:04 -0800175 u8 ifnum;
Kevin Lloyde3173b22008-07-10 14:14:51 -0700176
Kevin Lloyd228426e2008-01-10 11:11:04 -0800177 udev = serial->dev;
Elina Pasheva9636b682009-05-12 13:12:54 -0700178 dev_dbg(&udev->dev, "%s\n", __func__);
Kevin Lloyd228426e2008-01-10 11:11:04 -0800179
Kevin Lloyde3173b22008-07-10 14:14:51 -0700180 ifnum = sierra_calc_interface(serial);
Kevin Lloyde3173b22008-07-10 14:14:51 -0700181 /*
182 * If this interface supports more than 1 alternate
183 * select the 2nd one
184 */
185 if (serial->interface->num_altsetting == 2) {
186 dev_dbg(&udev->dev, "Selecting alt setting for interface %d\n",
187 ifnum);
188 /* We know the alternate setting is 1 for the MC8785 */
189 usb_set_interface(udev, ifnum, 1);
190 }
Kevin Lloyd71069672008-04-02 11:24:56 -0700191
Elina Pasheva4db22992009-06-11 14:32:01 +0100192 /* ifnum could have changed - by calling usb_set_interface */
193 ifnum = sierra_calc_interface(serial);
194
195 if (is_blacklisted(ifnum,
196 (struct sierra_iface_info *)id->driver_info)) {
197 dev_dbg(&serial->dev->dev,
198 "Ignoring blacklisted interface #%d\n", ifnum);
199 return -ENODEV;
200 }
201
Oliver Neukume6929a92009-09-04 23:19:53 +0200202 data = serial->private = kzalloc(sizeof(struct sierra_intf_private), GFP_KERNEL);
203 if (!data)
204 return -ENOMEM;
205 spin_lock_init(&data->susp_lock);
206
Kevin Lloyd228426e2008-01-10 11:11:04 -0800207 return result;
Kevin Lloyd112225b2007-07-16 13:49:27 -0700208}
Kevin Lloyd033a3fb2006-10-13 23:53:21 -0700209
Elina Pasheva3a2b8082009-11-04 10:25:48 -0800210/* interfaces with higher memory requirements */
211static const u8 hi_memory_typeA_ifaces[] = { 0, 2 };
212static const struct sierra_iface_info typeA_interface_list = {
213 .infolen = ARRAY_SIZE(hi_memory_typeA_ifaces),
214 .ifaceinfo = hi_memory_typeA_ifaces,
215};
216
217static const u8 hi_memory_typeB_ifaces[] = { 3, 4, 5, 6 };
218static const struct sierra_iface_info typeB_interface_list = {
219 .infolen = ARRAY_SIZE(hi_memory_typeB_ifaces),
220 .ifaceinfo = hi_memory_typeB_ifaces,
221};
222
223/* 'blacklist' of interfaces not served by this driver */
Elina Pasheva4db22992009-06-11 14:32:01 +0100224static const u8 direct_ip_non_serial_ifaces[] = { 7, 8, 9, 10, 11 };
225static const struct sierra_iface_info direct_ip_interface_blacklist = {
226 .infolen = ARRAY_SIZE(direct_ip_non_serial_ifaces),
227 .ifaceinfo = direct_ip_non_serial_ifaces,
228};
229
Németh Márton7d40d7e2010-01-10 15:34:24 +0100230static const struct usb_device_id id_table[] = {
Elina Pashevac5f3d872009-07-09 17:55:18 -0700231 { USB_DEVICE(0x0F3D, 0x0112) }, /* Airprime/Sierra PC 5220 */
232 { USB_DEVICE(0x03F0, 0x1B1D) }, /* HP ev2200 a.k.a MC5720 */
William Lightningcfbaa392010-03-26 10:51:20 -0700233 { USB_DEVICE(0x03F0, 0x211D) }, /* HP ev2210 a.k.a MC5725 */
Elina Pashevac5f3d872009-07-09 17:55:18 -0700234 { USB_DEVICE(0x03F0, 0x1E1D) }, /* HP hs2300 a.k.a MC8775 */
235
Kevin Lloyd69de51f2006-06-30 11:17:55 -0700236 { USB_DEVICE(0x1199, 0x0017) }, /* Sierra Wireless EM5625 */
Kevin Lloyde43062d2007-01-17 16:04:18 -0800237 { USB_DEVICE(0x1199, 0x0018) }, /* Sierra Wireless MC5720 */
Greg Kroah-Hartman90ac3c82002-04-09 12:14:34 -0700238 { USB_DEVICE(0x1199, 0x0218) }, /* Sierra Wireless MC5720 */
Kevin Lloyde43062d2007-01-17 16:04:18 -0800239 { USB_DEVICE(0x1199, 0x0020) }, /* Sierra Wireless MC5725 */
agilmore@wirelessbeehive.comb9e13ac2007-12-04 11:37:12 -0700240 { USB_DEVICE(0x1199, 0x0220) }, /* Sierra Wireless MC5725 */
Elina Pashevac5f3d872009-07-09 17:55:18 -0700241 { USB_DEVICE(0x1199, 0x0022) }, /* Sierra Wireless EM5725 */
242 { USB_DEVICE(0x1199, 0x0024) }, /* Sierra Wireless MC5727 */
243 { USB_DEVICE(0x1199, 0x0224) }, /* Sierra Wireless MC5727 */
Kevin Lloyde43062d2007-01-17 16:04:18 -0800244 { USB_DEVICE(0x1199, 0x0019) }, /* Sierra Wireless AirCard 595 */
245 { USB_DEVICE(0x1199, 0x0021) }, /* Sierra Wireless AirCard 597E */
Elina Pashevac5f3d872009-07-09 17:55:18 -0700246 { USB_DEVICE(0x1199, 0x0112) }, /* Sierra Wireless AirCard 580 */
Kevin Lloyd9454c462007-07-16 13:49:29 -0700247 { USB_DEVICE(0x1199, 0x0120) }, /* Sierra Wireless USB Dongle 595U */
august huber9d72c812010-06-28 11:46:05 -0700248 { USB_DEVICE(0x1199, 0x0301) }, /* Sierra Wireless USB Dongle 250U */
Elina Pashevac5f3d872009-07-09 17:55:18 -0700249 /* Sierra Wireless C597 */
Kevin Lloyd4e0fee82008-07-10 14:14:47 -0700250 { USB_DEVICE_AND_INTERFACE_INFO(0x1199, 0x0023, 0xFF, 0xFF, 0xFF) },
Elina Pashevac5f3d872009-07-09 17:55:18 -0700251 /* Sierra Wireless T598 */
Kevin Lloyde3173b22008-07-10 14:14:51 -0700252 { USB_DEVICE_AND_INTERFACE_INFO(0x1199, 0x0025, 0xFF, 0xFF, 0xFF) },
Elina Pashevac5f3d872009-07-09 17:55:18 -0700253 { USB_DEVICE(0x1199, 0x0026) }, /* Sierra Wireless T11 */
254 { USB_DEVICE(0x1199, 0x0027) }, /* Sierra Wireless AC402 */
255 { USB_DEVICE(0x1199, 0x0028) }, /* Sierra Wireless MC5728 */
256 { USB_DEVICE(0x1199, 0x0029) }, /* Sierra Wireless Device */
Kevin Lloyd9454c462007-07-16 13:49:29 -0700257
Kevin Lloyd69de51f2006-06-30 11:17:55 -0700258 { USB_DEVICE(0x1199, 0x6802) }, /* Sierra Wireless MC8755 */
259 { USB_DEVICE(0x1199, 0x6803) }, /* Sierra Wireless MC8765 */
Elina Pashevac5f3d872009-07-09 17:55:18 -0700260 { USB_DEVICE(0x1199, 0x6804) }, /* Sierra Wireless MC8755 */
261 { USB_DEVICE(0x1199, 0x6805) }, /* Sierra Wireless MC8765 */
262 { USB_DEVICE(0x1199, 0x6808) }, /* Sierra Wireless MC8755 */
263 { USB_DEVICE(0x1199, 0x6809) }, /* Sierra Wireless MC8765 */
Kevin Lloyd9454c462007-07-16 13:49:29 -0700264 { USB_DEVICE(0x1199, 0x6812) }, /* Sierra Wireless MC8775 & AC 875U */
Elina Pashevac5f3d872009-07-09 17:55:18 -0700265 { USB_DEVICE(0x1199, 0x6813) }, /* Sierra Wireless MC8775 */
Kevin Lloyd7f170a62008-03-14 00:53:24 -0700266 { USB_DEVICE(0x1199, 0x6815) }, /* Sierra Wireless MC8775 */
Elina Pashevac5f3d872009-07-09 17:55:18 -0700267 { USB_DEVICE(0x1199, 0x6816) }, /* Sierra Wireless MC8775 */
Kevin Lloyd69de51f2006-06-30 11:17:55 -0700268 { USB_DEVICE(0x1199, 0x6820) }, /* Sierra Wireless AirCard 875 */
Kevin Lloyd71069672008-04-02 11:24:56 -0700269 { USB_DEVICE(0x1199, 0x6821) }, /* Sierra Wireless AirCard 875U */
Elina Pashevac5f3d872009-07-09 17:55:18 -0700270 { USB_DEVICE(0x1199, 0x6822) }, /* Sierra Wireless AirCard 875E */
Kevin Lloyd4e0fee82008-07-10 14:14:47 -0700271 { USB_DEVICE(0x1199, 0x6832) }, /* Sierra Wireless MC8780 */
272 { USB_DEVICE(0x1199, 0x6833) }, /* Sierra Wireless MC8781 */
Elina Pashevac5f3d872009-07-09 17:55:18 -0700273 { USB_DEVICE(0x1199, 0x6834) }, /* Sierra Wireless MC8780 */
274 { USB_DEVICE(0x1199, 0x6835) }, /* Sierra Wireless MC8781 */
275 { USB_DEVICE(0x1199, 0x6838) }, /* Sierra Wireless MC8780 */
276 { USB_DEVICE(0x1199, 0x6839) }, /* Sierra Wireless MC8781 */
Kevin Lloydb77a5c72008-09-17 09:03:38 -0700277 { USB_DEVICE(0x1199, 0x683A) }, /* Sierra Wireless MC8785 */
Kevin Lloyde3173b22008-07-10 14:14:51 -0700278 { USB_DEVICE(0x1199, 0x683B) }, /* Sierra Wireless MC8785 Composite */
Elina Pasheva4db22992009-06-11 14:32:01 +0100279 /* Sierra Wireless MC8790, MC8791, MC8792 Composite */
280 { USB_DEVICE(0x1199, 0x683C) },
281 { USB_DEVICE(0x1199, 0x683D) }, /* Sierra Wireless MC8791 Composite */
282 /* Sierra Wireless MC8790, MC8791, MC8792 */
283 { USB_DEVICE(0x1199, 0x683E) },
Kevin Lloyd9454c462007-07-16 13:49:29 -0700284 { USB_DEVICE(0x1199, 0x6850) }, /* Sierra Wireless AirCard 880 */
285 { USB_DEVICE(0x1199, 0x6851) }, /* Sierra Wireless AirCard 881 */
286 { USB_DEVICE(0x1199, 0x6852) }, /* Sierra Wireless AirCard 880 E */
287 { USB_DEVICE(0x1199, 0x6853) }, /* Sierra Wireless AirCard 881 E */
Kevin Lloyd6835b322008-01-10 11:11:04 -0800288 { USB_DEVICE(0x1199, 0x6855) }, /* Sierra Wireless AirCard 880 U */
Jessica L. Blank62aad3a2007-12-30 20:11:35 -0600289 { USB_DEVICE(0x1199, 0x6856) }, /* Sierra Wireless AirCard 881 U */
Kevin Lloyde3173b22008-07-10 14:14:51 -0700290 { USB_DEVICE(0x1199, 0x6859) }, /* Sierra Wireless AirCard 885 E */
291 { USB_DEVICE(0x1199, 0x685A) }, /* Sierra Wireless AirCard 885 E */
292 /* Sierra Wireless C885 */
293 { USB_DEVICE_AND_INTERFACE_INFO(0x1199, 0x6880, 0xFF, 0xFF, 0xFF)},
Elina Pashevac5f3d872009-07-09 17:55:18 -0700294 /* Sierra Wireless C888, Air Card 501, USB 303, USB 304 */
Kevin Lloyde3173b22008-07-10 14:14:51 -0700295 { USB_DEVICE_AND_INTERFACE_INFO(0x1199, 0x6890, 0xFF, 0xFF, 0xFF)},
Elina Pashevac5f3d872009-07-09 17:55:18 -0700296 /* Sierra Wireless C22/C33 */
Kevin Lloyd73b2c202008-08-25 19:20:40 -0700297 { USB_DEVICE_AND_INTERFACE_INFO(0x1199, 0x6891, 0xFF, 0xFF, 0xFF)},
Elina Pashevac5f3d872009-07-09 17:55:18 -0700298 /* Sierra Wireless HSPA Non-Composite Device */
Kevin Lloyde3173b22008-07-10 14:14:51 -0700299 { USB_DEVICE_AND_INTERFACE_INFO(0x1199, 0x6892, 0xFF, 0xFF, 0xFF)},
Elina Pashevac5f3d872009-07-09 17:55:18 -0700300 { USB_DEVICE(0x1199, 0x6893) }, /* Sierra Wireless Device */
Elina Pasheva4db22992009-06-11 14:32:01 +0100301 { USB_DEVICE(0x1199, 0x68A3), /* Sierra Wireless Direct IP modems */
302 .driver_info = (kernel_ulong_t)&direct_ip_interface_blacklist
303 },
Jon Thomase1dc5152011-02-16 11:02:34 -0500304 { USB_DEVICE(0x0f3d, 0x68A3), /* Airprime/Sierra Wireless Direct IP modems */
305 .driver_info = (kernel_ulong_t)&direct_ip_interface_blacklist
306 },
Richard Farina1ebca9d2010-01-20 16:42:33 -0500307 { USB_DEVICE(0x413C, 0x08133) }, /* Dell Computer Corp. Wireless 5720 VZW Mobile Broadband (EVDO Rev-A) Minicard GPS Port */
Elina Pasheva4db22992009-06-11 14:32:01 +0100308
Kevin Lloyd69de51f2006-06-30 11:17:55 -0700309 { }
310};
Greg Kroah-Hartman964ee1d2006-10-17 10:17:58 -0700311MODULE_DEVICE_TABLE(usb, id_table);
Kevin Lloyd033a3fb2006-10-13 23:53:21 -0700312
Kevin Lloyd69de51f2006-06-30 11:17:55 -0700313
Kevin Lloyd033a3fb2006-10-13 23:53:21 -0700314struct sierra_port_private {
Greg Kroah-Hartman17c23272007-06-20 14:22:23 +0900315 spinlock_t lock; /* lock the structure */
316 int outstanding_urbs; /* number of out urbs in flight */
Oliver Neukume6929a92009-09-04 23:19:53 +0200317 struct usb_anchor active;
318 struct usb_anchor delayed;
Greg Kroah-Hartman17c23272007-06-20 14:22:23 +0900319
Elina Pasheva3a2b8082009-11-04 10:25:48 -0800320 int num_out_urbs;
321 int num_in_urbs;
Oliver Neukum4f4f9c52008-03-14 00:53:24 -0700322 /* Input endpoints and buffers for this port */
Elina Pasheva3a2b8082009-11-04 10:25:48 -0800323 struct urb *in_urbs[N_IN_URB_HM];
Kevin Lloyd033a3fb2006-10-13 23:53:21 -0700324
325 /* Settings for the port */
326 int rts_state; /* Handshaking pins (outputs) */
327 int dtr_state;
328 int cts_state; /* Handshaking pins (inputs) */
329 int dsr_state;
330 int dcd_state;
331 int ri_state;
Oliver Neukume6929a92009-09-04 23:19:53 +0200332 unsigned int opened:1;
Kevin Lloyd033a3fb2006-10-13 23:53:21 -0700333};
334
Alan Cox335f8512009-06-11 12:26:29 +0100335static int sierra_send_setup(struct usb_serial_port *port)
Kevin Lloyd69de51f2006-06-30 11:17:55 -0700336{
Greg Kroah-Hartman964ee1d2006-10-17 10:17:58 -0700337 struct usb_serial *serial = port->serial;
338 struct sierra_port_private *portdata;
Kevin Lloyd228426e2008-01-10 11:11:04 -0800339 __u16 interface = 0;
Alan Cox335f8512009-06-11 12:26:29 +0100340 int val = 0;
Elina Pasheva3c77d512009-10-16 12:04:54 -0700341 int do_send = 0;
342 int retval;
Kevin Lloyd033a3fb2006-10-13 23:53:21 -0700343
Elina Pasheva5d44b362009-04-27 18:41:52 -0700344 dev_dbg(&port->dev, "%s\n", __func__);
Kevin Lloyd033a3fb2006-10-13 23:53:21 -0700345
Greg Kroah-Hartman964ee1d2006-10-17 10:17:58 -0700346 portdata = usb_get_serial_port_data(port);
Kevin Lloyd033a3fb2006-10-13 23:53:21 -0700347
Alan Cox335f8512009-06-11 12:26:29 +0100348 if (portdata->dtr_state)
349 val |= 0x01;
350 if (portdata->rts_state)
351 val |= 0x02;
Greg Kroah-Hartman964ee1d2006-10-17 10:17:58 -0700352
Alan Cox335f8512009-06-11 12:26:29 +0100353 /* If composite device then properly report interface */
Alan Cox00b040d2009-06-11 14:29:29 +0100354 if (serial->num_ports == 1) {
Alan Cox335f8512009-06-11 12:26:29 +0100355 interface = sierra_calc_interface(serial);
Alan Cox00b040d2009-06-11 14:29:29 +0100356 /* Control message is sent only to interfaces with
357 * interrupt_in endpoints
358 */
359 if (port->interrupt_in_urb) {
360 /* send control message */
Elina Pasheva3c77d512009-10-16 12:04:54 -0700361 do_send = 1;
Alan Cox00b040d2009-06-11 14:29:29 +0100362 }
363 }
Kevin Lloyde3173b22008-07-10 14:14:51 -0700364
Alan Cox335f8512009-06-11 12:26:29 +0100365 /* Otherwise the need to do non-composite mapping */
366 else {
367 if (port->bulk_out_endpointAddress == 2)
368 interface = 0;
369 else if (port->bulk_out_endpointAddress == 4)
370 interface = 1;
371 else if (port->bulk_out_endpointAddress == 5)
372 interface = 2;
Elina Pasheva3c77d512009-10-16 12:04:54 -0700373
374 do_send = 1;
Alan Cox00b040d2009-06-11 14:29:29 +0100375 }
Elina Pasheva3c77d512009-10-16 12:04:54 -0700376 if (!do_send)
377 return 0;
378
Oliver Neukum5b7c1172011-02-11 12:56:40 +0100379 retval = usb_autopm_get_interface(serial->interface);
380 if (retval < 0)
381 return retval;
382
Elina Pasheva3c77d512009-10-16 12:04:54 -0700383 retval = usb_control_msg(serial->dev, usb_rcvctrlpipe(serial->dev, 0),
384 0x22, 0x21, val, interface, NULL, 0, USB_CTRL_SET_TIMEOUT);
385 usb_autopm_put_interface(serial->interface);
386
387 return retval;
Kevin Lloyd69de51f2006-06-30 11:17:55 -0700388}
389
Alan Cox95da3102008-07-22 11:09:07 +0100390static void sierra_set_termios(struct tty_struct *tty,
391 struct usb_serial_port *port, struct ktermios *old_termios)
Kevin Lloyd033a3fb2006-10-13 23:53:21 -0700392{
Elina Pasheva5d44b362009-04-27 18:41:52 -0700393 dev_dbg(&port->dev, "%s\n", __func__);
Alan Cox95da3102008-07-22 11:09:07 +0100394 tty_termios_copy_hw(tty->termios, old_termios);
Alan Cox335f8512009-06-11 12:26:29 +0100395 sierra_send_setup(port);
Kevin Lloyd033a3fb2006-10-13 23:53:21 -0700396}
397
Alan Cox60b33c12011-02-14 16:26:14 +0000398static int sierra_tiocmget(struct tty_struct *tty)
Kevin Lloyd033a3fb2006-10-13 23:53:21 -0700399{
Alan Cox95da3102008-07-22 11:09:07 +0100400 struct usb_serial_port *port = tty->driver_data;
Kevin Lloyd033a3fb2006-10-13 23:53:21 -0700401 unsigned int value;
402 struct sierra_port_private *portdata;
403
Elina Pasheva5d44b362009-04-27 18:41:52 -0700404 dev_dbg(&port->dev, "%s\n", __func__);
Kevin Lloyd033a3fb2006-10-13 23:53:21 -0700405 portdata = usb_get_serial_port_data(port);
406
407 value = ((portdata->rts_state) ? TIOCM_RTS : 0) |
408 ((portdata->dtr_state) ? TIOCM_DTR : 0) |
409 ((portdata->cts_state) ? TIOCM_CTS : 0) |
410 ((portdata->dsr_state) ? TIOCM_DSR : 0) |
411 ((portdata->dcd_state) ? TIOCM_CAR : 0) |
412 ((portdata->ri_state) ? TIOCM_RNG : 0);
413
414 return value;
415}
416
Alan Cox20b9d172011-02-14 16:26:50 +0000417static int sierra_tiocmset(struct tty_struct *tty,
Kevin Lloyd033a3fb2006-10-13 23:53:21 -0700418 unsigned int set, unsigned int clear)
419{
Alan Cox95da3102008-07-22 11:09:07 +0100420 struct usb_serial_port *port = tty->driver_data;
Kevin Lloyd033a3fb2006-10-13 23:53:21 -0700421 struct sierra_port_private *portdata;
422
423 portdata = usb_get_serial_port_data(port);
424
425 if (set & TIOCM_RTS)
426 portdata->rts_state = 1;
427 if (set & TIOCM_DTR)
428 portdata->dtr_state = 1;
429
430 if (clear & TIOCM_RTS)
431 portdata->rts_state = 0;
432 if (clear & TIOCM_DTR)
433 portdata->dtr_state = 0;
Alan Cox335f8512009-06-11 12:26:29 +0100434 return sierra_send_setup(port);
Kevin Lloyd033a3fb2006-10-13 23:53:21 -0700435}
436
Elina Pashevab9a44bc12009-06-11 14:30:21 +0100437static void sierra_release_urb(struct urb *urb)
438{
439 struct usb_serial_port *port;
440 if (urb) {
441 port = urb->context;
442 dev_dbg(&port->dev, "%s: %p\n", __func__, urb);
443 kfree(urb->transfer_buffer);
444 usb_free_urb(urb);
445 }
446}
447
Greg Kroah-Hartman17c23272007-06-20 14:22:23 +0900448static void sierra_outdat_callback(struct urb *urb)
449{
450 struct usb_serial_port *port = urb->context;
451 struct sierra_port_private *portdata = usb_get_serial_port_data(port);
Oliver Neukume6929a92009-09-04 23:19:53 +0200452 struct sierra_intf_private *intfdata;
Greg Kroah-Hartman17c23272007-06-20 14:22:23 +0900453 int status = urb->status;
Greg Kroah-Hartman17c23272007-06-20 14:22:23 +0900454
Elina Pasheva5d44b362009-04-27 18:41:52 -0700455 dev_dbg(&port->dev, "%s - port %d\n", __func__, port->number);
Oliver Neukume6929a92009-09-04 23:19:53 +0200456 intfdata = port->serial->private;
Greg Kroah-Hartman17c23272007-06-20 14:22:23 +0900457
458 /* free up the transfer buffer, as usb_free_urb() does not do this */
459 kfree(urb->transfer_buffer);
Oliver Neukume6929a92009-09-04 23:19:53 +0200460 usb_autopm_put_interface_async(port->serial->interface);
Greg Kroah-Hartman17c23272007-06-20 14:22:23 +0900461 if (status)
Kevin Lloyd7384a922008-09-16 21:05:24 -0700462 dev_dbg(&port->dev, "%s - nonzero write bulk status "
Elina Pasheva5d44b362009-04-27 18:41:52 -0700463 "received: %d\n", __func__, status);
Greg Kroah-Hartman17c23272007-06-20 14:22:23 +0900464
Oliver Neukume6929a92009-09-04 23:19:53 +0200465 spin_lock(&portdata->lock);
Greg Kroah-Hartman17c23272007-06-20 14:22:23 +0900466 --portdata->outstanding_urbs;
Oliver Neukume6929a92009-09-04 23:19:53 +0200467 spin_unlock(&portdata->lock);
468 spin_lock(&intfdata->susp_lock);
469 --intfdata->in_flight;
470 spin_unlock(&intfdata->susp_lock);
Greg Kroah-Hartman17c23272007-06-20 14:22:23 +0900471
472 usb_serial_port_softint(port);
473}
474
Kevin Lloyd033a3fb2006-10-13 23:53:21 -0700475/* Write */
Alan Cox95da3102008-07-22 11:09:07 +0100476static int sierra_write(struct tty_struct *tty, struct usb_serial_port *port,
477 const unsigned char *buf, int count)
Kevin Lloyd033a3fb2006-10-13 23:53:21 -0700478{
Julia Lawalla45a1e02010-01-16 16:59:51 +0100479 struct sierra_port_private *portdata;
Oliver Neukume6929a92009-09-04 23:19:53 +0200480 struct sierra_intf_private *intfdata;
Greg Kroah-Hartman17c23272007-06-20 14:22:23 +0900481 struct usb_serial *serial = port->serial;
482 unsigned long flags;
483 unsigned char *buffer;
484 struct urb *urb;
Elina Pasheva40d2ff32009-04-29 10:26:46 -0700485 size_t writesize = min((size_t)count, (size_t)MAX_TRANSFER);
486 int retval = 0;
487
488 /* verify that we actually have some data to write */
489 if (count == 0)
490 return 0;
Kevin Lloyd033a3fb2006-10-13 23:53:21 -0700491
492 portdata = usb_get_serial_port_data(port);
Oliver Neukume6929a92009-09-04 23:19:53 +0200493 intfdata = serial->private;
Kevin Lloyd033a3fb2006-10-13 23:53:21 -0700494
Andrew Morton0b103952009-05-12 15:27:59 -0700495 dev_dbg(&port->dev, "%s: write (%zd bytes)\n", __func__, writesize);
Greg Kroah-Hartman17c23272007-06-20 14:22:23 +0900496 spin_lock_irqsave(&portdata->lock, flags);
Elina Pasheva40d2ff32009-04-29 10:26:46 -0700497 dev_dbg(&port->dev, "%s - outstanding_urbs: %d\n", __func__,
498 portdata->outstanding_urbs);
Elina Pasheva3a2b8082009-11-04 10:25:48 -0800499 if (portdata->outstanding_urbs > portdata->num_out_urbs) {
Greg Kroah-Hartman17c23272007-06-20 14:22:23 +0900500 spin_unlock_irqrestore(&portdata->lock, flags);
Kevin Lloyd7384a922008-09-16 21:05:24 -0700501 dev_dbg(&port->dev, "%s - write limit hit\n", __func__);
Greg Kroah-Hartman17c23272007-06-20 14:22:23 +0900502 return 0;
503 }
504 portdata->outstanding_urbs++;
Elina Pasheva40d2ff32009-04-29 10:26:46 -0700505 dev_dbg(&port->dev, "%s - 1, outstanding_urbs: %d\n", __func__,
506 portdata->outstanding_urbs);
Greg Kroah-Hartman17c23272007-06-20 14:22:23 +0900507 spin_unlock_irqrestore(&portdata->lock, flags);
Kevin Lloyd033a3fb2006-10-13 23:53:21 -0700508
Oliver Neukume6929a92009-09-04 23:19:53 +0200509 retval = usb_autopm_get_interface_async(serial->interface);
510 if (retval < 0) {
511 spin_lock_irqsave(&portdata->lock, flags);
512 portdata->outstanding_urbs--;
513 spin_unlock_irqrestore(&portdata->lock, flags);
514 goto error_simple;
515 }
516
Elina Pasheva40d2ff32009-04-29 10:26:46 -0700517 buffer = kmalloc(writesize, GFP_ATOMIC);
Greg Kroah-Hartman17c23272007-06-20 14:22:23 +0900518 if (!buffer) {
519 dev_err(&port->dev, "out of memory\n");
Elina Pasheva40d2ff32009-04-29 10:26:46 -0700520 retval = -ENOMEM;
Greg Kroah-Hartman17c23272007-06-20 14:22:23 +0900521 goto error_no_buffer;
Kevin Lloyd033a3fb2006-10-13 23:53:21 -0700522 }
523
Greg Kroah-Hartman17c23272007-06-20 14:22:23 +0900524 urb = usb_alloc_urb(0, GFP_ATOMIC);
525 if (!urb) {
526 dev_err(&port->dev, "no more free urbs\n");
Elina Pasheva40d2ff32009-04-29 10:26:46 -0700527 retval = -ENOMEM;
Greg Kroah-Hartman17c23272007-06-20 14:22:23 +0900528 goto error_no_urb;
529 }
530
Elina Pasheva40d2ff32009-04-29 10:26:46 -0700531 memcpy(buffer, buf, writesize);
Greg Kroah-Hartman17c23272007-06-20 14:22:23 +0900532
Elina Pasheva40d2ff32009-04-29 10:26:46 -0700533 usb_serial_debug_data(debug, &port->dev, __func__, writesize, buffer);
Greg Kroah-Hartman17c23272007-06-20 14:22:23 +0900534
535 usb_fill_bulk_urb(urb, serial->dev,
536 usb_sndbulkpipe(serial->dev,
537 port->bulk_out_endpointAddress),
Elina Pasheva40d2ff32009-04-29 10:26:46 -0700538 buffer, writesize, sierra_outdat_callback, port);
Greg Kroah-Hartman17c23272007-06-20 14:22:23 +0900539
Elina Pasheva238ebd12009-05-12 13:12:24 -0700540 /* Handle the need to send a zero length packet */
541 urb->transfer_flags |= URB_ZERO_PACKET;
542
Oliver Neukume6929a92009-09-04 23:19:53 +0200543 spin_lock_irqsave(&intfdata->susp_lock, flags);
544
545 if (intfdata->suspended) {
546 usb_anchor_urb(urb, &portdata->delayed);
547 spin_unlock_irqrestore(&intfdata->susp_lock, flags);
548 goto skip_power;
549 } else {
550 usb_anchor_urb(urb, &portdata->active);
551 }
Greg Kroah-Hartman17c23272007-06-20 14:22:23 +0900552 /* send it down the pipe */
Elina Pasheva40d2ff32009-04-29 10:26:46 -0700553 retval = usb_submit_urb(urb, GFP_ATOMIC);
554 if (retval) {
Oliver Neukume6929a92009-09-04 23:19:53 +0200555 usb_unanchor_urb(urb);
556 spin_unlock_irqrestore(&intfdata->susp_lock, flags);
Greg Kroah-Hartman17c23272007-06-20 14:22:23 +0900557 dev_err(&port->dev, "%s - usb_submit_urb(write bulk) failed "
Elina Pasheva40d2ff32009-04-29 10:26:46 -0700558 "with status = %d\n", __func__, retval);
Greg Kroah-Hartman17c23272007-06-20 14:22:23 +0900559 goto error;
Oliver Neukume6929a92009-09-04 23:19:53 +0200560 } else {
561 intfdata->in_flight++;
562 spin_unlock_irqrestore(&intfdata->susp_lock, flags);
Greg Kroah-Hartman17c23272007-06-20 14:22:23 +0900563 }
564
Oliver Neukume6929a92009-09-04 23:19:53 +0200565skip_power:
Greg Kroah-Hartman17c23272007-06-20 14:22:23 +0900566 /* we are done with this urb, so let the host driver
567 * really free it when it is finished with it */
568 usb_free_urb(urb);
569
Elina Pasheva40d2ff32009-04-29 10:26:46 -0700570 return writesize;
Greg Kroah-Hartman17c23272007-06-20 14:22:23 +0900571error:
572 usb_free_urb(urb);
573error_no_urb:
574 kfree(buffer);
575error_no_buffer:
576 spin_lock_irqsave(&portdata->lock, flags);
577 --portdata->outstanding_urbs;
Elina Pasheva40d2ff32009-04-29 10:26:46 -0700578 dev_dbg(&port->dev, "%s - 2. outstanding_urbs: %d\n", __func__,
579 portdata->outstanding_urbs);
Greg Kroah-Hartman17c23272007-06-20 14:22:23 +0900580 spin_unlock_irqrestore(&portdata->lock, flags);
Oliver Neukume6929a92009-09-04 23:19:53 +0200581 usb_autopm_put_interface_async(serial->interface);
582error_simple:
Elina Pasheva40d2ff32009-04-29 10:26:46 -0700583 return retval;
Kevin Lloyd033a3fb2006-10-13 23:53:21 -0700584}
585
586static void sierra_indat_callback(struct urb *urb)
587{
588 int err;
589 int endpoint;
590 struct usb_serial_port *port;
591 struct tty_struct *tty;
592 unsigned char *data = urb->transfer_buffer;
Greg Kroah-Hartman17dd2212007-06-15 15:44:13 -0700593 int status = urb->status;
Kevin Lloyd033a3fb2006-10-13 23:53:21 -0700594
Kevin Lloyd033a3fb2006-10-13 23:53:21 -0700595 endpoint = usb_pipeendpoint(urb->pipe);
Elina Pashevab0cda8c2009-04-29 10:29:21 -0700596 port = urb->context;
597
598 dev_dbg(&port->dev, "%s: %p\n", __func__, urb);
Kevin Lloyd033a3fb2006-10-13 23:53:21 -0700599
Greg Kroah-Hartman17dd2212007-06-15 15:44:13 -0700600 if (status) {
Kevin Lloyd7384a922008-09-16 21:05:24 -0700601 dev_dbg(&port->dev, "%s: nonzero status: %d on"
Elina Pasheva5d44b362009-04-27 18:41:52 -0700602 " endpoint %02x\n", __func__, status, endpoint);
Kevin Lloyd033a3fb2006-10-13 23:53:21 -0700603 } else {
Kevin Lloyd033a3fb2006-10-13 23:53:21 -0700604 if (urb->actual_length) {
Alan Coxd95186d2009-01-02 13:42:56 +0000605 tty = tty_port_tty_get(&port->port);
Elina Pashevab87c6e82010-02-15 14:50:14 -0800606 if (tty) {
Elina Pashevab87c6e82010-02-15 14:50:14 -0800607 tty_insert_flip_string(tty, data,
608 urb->actual_length);
609 tty_flip_buffer_push(tty);
Elina Pashevab0cda8c2009-04-29 10:29:21 -0700610
Elina Pashevab87c6e82010-02-15 14:50:14 -0800611 tty_kref_put(tty);
612 usb_serial_debug_data(debug, &port->dev,
613 __func__, urb->actual_length, data);
614 }
Elina Pashevab0cda8c2009-04-29 10:29:21 -0700615 } else {
Kevin Lloyd7384a922008-09-16 21:05:24 -0700616 dev_dbg(&port->dev, "%s: empty read urb"
Elina Pasheva5d44b362009-04-27 18:41:52 -0700617 " received\n", __func__);
Kevin Lloyd033a3fb2006-10-13 23:53:21 -0700618 }
619 }
Elina Pashevab0cda8c2009-04-29 10:29:21 -0700620
621 /* Resubmit urb so we continue receiving */
Alan Stern1f871582010-02-17 10:05:47 -0500622 if (status != -ESHUTDOWN && status != -EPERM) {
Oliver Neukume6929a92009-09-04 23:19:53 +0200623 usb_mark_last_busy(port->serial->dev);
Elina Pashevab0cda8c2009-04-29 10:29:21 -0700624 err = usb_submit_urb(urb, GFP_ATOMIC);
Alan Stern1f871582010-02-17 10:05:47 -0500625 if (err && err != -EPERM)
Elina Pashevab0cda8c2009-04-29 10:29:21 -0700626 dev_err(&port->dev, "resubmit read urb failed."
627 "(%d)\n", err);
628 }
Kevin Lloyd033a3fb2006-10-13 23:53:21 -0700629}
630
Kevin Lloyd033a3fb2006-10-13 23:53:21 -0700631static void sierra_instat_callback(struct urb *urb)
632{
633 int err;
Greg Kroah-Hartman17dd2212007-06-15 15:44:13 -0700634 int status = urb->status;
Ming Leicdc97792008-02-24 18:41:47 +0800635 struct usb_serial_port *port = urb->context;
Kevin Lloyd033a3fb2006-10-13 23:53:21 -0700636 struct sierra_port_private *portdata = usb_get_serial_port_data(port);
637 struct usb_serial *serial = port->serial;
638
Elina Pasheva5d44b362009-04-27 18:41:52 -0700639 dev_dbg(&port->dev, "%s: urb %p port %p has data %p\n", __func__,
Kevin Lloyd7384a922008-09-16 21:05:24 -0700640 urb, port, portdata);
Kevin Lloyd033a3fb2006-10-13 23:53:21 -0700641
Greg Kroah-Hartman17dd2212007-06-15 15:44:13 -0700642 if (status == 0) {
Kevin Lloyd033a3fb2006-10-13 23:53:21 -0700643 struct usb_ctrlrequest *req_pkt =
644 (struct usb_ctrlrequest *)urb->transfer_buffer;
645
646 if (!req_pkt) {
Kevin Lloyd7384a922008-09-16 21:05:24 -0700647 dev_dbg(&port->dev, "%s: NULL req_pkt\n",
648 __func__);
Kevin Lloyd033a3fb2006-10-13 23:53:21 -0700649 return;
650 }
651 if ((req_pkt->bRequestType == 0xA1) &&
652 (req_pkt->bRequest == 0x20)) {
653 int old_dcd_state;
654 unsigned char signals = *((unsigned char *)
655 urb->transfer_buffer +
656 sizeof(struct usb_ctrlrequest));
Alan Cox4a90f092008-10-13 10:39:46 +0100657 struct tty_struct *tty;
Kevin Lloyd033a3fb2006-10-13 23:53:21 -0700658
Elina Pasheva5d44b362009-04-27 18:41:52 -0700659 dev_dbg(&port->dev, "%s: signal x%x\n", __func__,
Kevin Lloyd7384a922008-09-16 21:05:24 -0700660 signals);
Kevin Lloyd033a3fb2006-10-13 23:53:21 -0700661
662 old_dcd_state = portdata->dcd_state;
663 portdata->cts_state = 1;
664 portdata->dcd_state = ((signals & 0x01) ? 1 : 0);
665 portdata->dsr_state = ((signals & 0x02) ? 1 : 0);
666 portdata->ri_state = ((signals & 0x08) ? 1 : 0);
667
Alan Cox4a90f092008-10-13 10:39:46 +0100668 tty = tty_port_tty_get(&port->port);
669 if (tty && !C_CLOCAL(tty) &&
Kevin Lloyd033a3fb2006-10-13 23:53:21 -0700670 old_dcd_state && !portdata->dcd_state)
Alan Cox4a90f092008-10-13 10:39:46 +0100671 tty_hangup(tty);
672 tty_kref_put(tty);
Kevin Lloyd033a3fb2006-10-13 23:53:21 -0700673 } else {
Elina Pasheva5d44b362009-04-27 18:41:52 -0700674 dev_dbg(&port->dev, "%s: type %x req %x\n",
Kevin Lloyd7384a922008-09-16 21:05:24 -0700675 __func__, req_pkt->bRequestType,
676 req_pkt->bRequest);
Kevin Lloyd033a3fb2006-10-13 23:53:21 -0700677 }
678 } else
Elina Pasheva5d44b362009-04-27 18:41:52 -0700679 dev_dbg(&port->dev, "%s: error %d\n", __func__, status);
Kevin Lloyd033a3fb2006-10-13 23:53:21 -0700680
681 /* Resubmit urb so we continue receiving IRQ data */
Alan Stern1f871582010-02-17 10:05:47 -0500682 if (status != -ESHUTDOWN && status != -ENOENT) {
Oliver Neukume6929a92009-09-04 23:19:53 +0200683 usb_mark_last_busy(serial->dev);
Kevin Lloyd033a3fb2006-10-13 23:53:21 -0700684 urb->dev = serial->dev;
685 err = usb_submit_urb(urb, GFP_ATOMIC);
Alan Stern1f871582010-02-17 10:05:47 -0500686 if (err && err != -EPERM)
Elina Pashevac76a23d2009-05-12 13:12:37 -0700687 dev_err(&port->dev, "%s: resubmit intr urb "
688 "failed. (%d)\n", __func__, err);
Kevin Lloyd033a3fb2006-10-13 23:53:21 -0700689 }
690}
691
Alan Cox95da3102008-07-22 11:09:07 +0100692static int sierra_write_room(struct tty_struct *tty)
Kevin Lloyd033a3fb2006-10-13 23:53:21 -0700693{
Alan Cox95da3102008-07-22 11:09:07 +0100694 struct usb_serial_port *port = tty->driver_data;
Greg Kroah-Hartman17c23272007-06-20 14:22:23 +0900695 struct sierra_port_private *portdata = usb_get_serial_port_data(port);
696 unsigned long flags;
Kevin Lloyd033a3fb2006-10-13 23:53:21 -0700697
Elina Pasheva5d44b362009-04-27 18:41:52 -0700698 dev_dbg(&port->dev, "%s - port %d\n", __func__, port->number);
Kevin Lloyd033a3fb2006-10-13 23:53:21 -0700699
Greg Kroah-Hartman17c23272007-06-20 14:22:23 +0900700 /* try to give a good number back based on if we have any free urbs at
701 * this point in time */
702 spin_lock_irqsave(&portdata->lock, flags);
Elina Pasheva3a2b8082009-11-04 10:25:48 -0800703 if (portdata->outstanding_urbs > (portdata->num_out_urbs * 2) / 3) {
Greg Kroah-Hartman17c23272007-06-20 14:22:23 +0900704 spin_unlock_irqrestore(&portdata->lock, flags);
Kevin Lloyd7384a922008-09-16 21:05:24 -0700705 dev_dbg(&port->dev, "%s - write limit hit\n", __func__);
Greg Kroah-Hartman17c23272007-06-20 14:22:23 +0900706 return 0;
Kevin Lloyd033a3fb2006-10-13 23:53:21 -0700707 }
Greg Kroah-Hartman17c23272007-06-20 14:22:23 +0900708 spin_unlock_irqrestore(&portdata->lock, flags);
Kevin Lloyd033a3fb2006-10-13 23:53:21 -0700709
Greg Kroah-Hartman17c23272007-06-20 14:22:23 +0900710 return 2048;
Kevin Lloyd033a3fb2006-10-13 23:53:21 -0700711}
712
Elina Pashevab9a44bc12009-06-11 14:30:21 +0100713static void sierra_stop_rx_urbs(struct usb_serial_port *port)
714{
715 int i;
716 struct sierra_port_private *portdata = usb_get_serial_port_data(port);
717
Elina Pasheva3a2b8082009-11-04 10:25:48 -0800718 for (i = 0; i < portdata->num_in_urbs; i++)
Elina Pashevab9a44bc12009-06-11 14:30:21 +0100719 usb_kill_urb(portdata->in_urbs[i]);
720
721 usb_kill_urb(port->interrupt_in_urb);
722}
723
724static int sierra_submit_rx_urbs(struct usb_serial_port *port, gfp_t mem_flags)
725{
726 int ok_cnt;
727 int err = -EINVAL;
728 int i;
729 struct urb *urb;
730 struct sierra_port_private *portdata = usb_get_serial_port_data(port);
731
732 ok_cnt = 0;
Elina Pasheva3a2b8082009-11-04 10:25:48 -0800733 for (i = 0; i < portdata->num_in_urbs; i++) {
Elina Pashevab9a44bc12009-06-11 14:30:21 +0100734 urb = portdata->in_urbs[i];
735 if (!urb)
736 continue;
737 err = usb_submit_urb(urb, mem_flags);
738 if (err) {
739 dev_err(&port->dev, "%s: submit urb failed: %d\n",
740 __func__, err);
741 } else {
742 ok_cnt++;
743 }
744 }
745
746 if (ok_cnt && port->interrupt_in_urb) {
747 err = usb_submit_urb(port->interrupt_in_urb, mem_flags);
748 if (err) {
749 dev_err(&port->dev, "%s: submit intr urb failed: %d\n",
750 __func__, err);
751 }
752 }
753
754 if (ok_cnt > 0) /* at least one rx urb submitted */
755 return 0;
756 else
757 return err;
758}
759
760static struct urb *sierra_setup_urb(struct usb_serial *serial, int endpoint,
761 int dir, void *ctx, int len,
762 gfp_t mem_flags,
763 usb_complete_t callback)
764{
765 struct urb *urb;
766 u8 *buf;
767
768 if (endpoint == -1)
769 return NULL;
770
771 urb = usb_alloc_urb(0, mem_flags);
772 if (urb == NULL) {
773 dev_dbg(&serial->dev->dev, "%s: alloc for endpoint %d failed\n",
774 __func__, endpoint);
775 return NULL;
776 }
777
778 buf = kmalloc(len, mem_flags);
779 if (buf) {
780 /* Fill URB using supplied data */
781 usb_fill_bulk_urb(urb, serial->dev,
782 usb_sndbulkpipe(serial->dev, endpoint) | dir,
783 buf, len, callback, ctx);
784
785 /* debug */
786 dev_dbg(&serial->dev->dev, "%s %c u : %p d:%p\n", __func__,
787 dir == USB_DIR_IN ? 'i' : 'o', urb, buf);
788 } else {
789 dev_dbg(&serial->dev->dev, "%s %c u:%p d:%p\n", __func__,
790 dir == USB_DIR_IN ? 'i' : 'o', urb, buf);
791
792 sierra_release_urb(urb);
793 urb = NULL;
794 }
795
796 return urb;
797}
798
799static void sierra_close(struct usb_serial_port *port)
800{
801 int i;
802 struct usb_serial *serial = port->serial;
803 struct sierra_port_private *portdata;
Oliver Neukume6929a92009-09-04 23:19:53 +0200804 struct sierra_intf_private *intfdata = port->serial->private;
805
Elina Pashevab9a44bc12009-06-11 14:30:21 +0100806
807 dev_dbg(&port->dev, "%s\n", __func__);
808 portdata = usb_get_serial_port_data(port);
809
810 portdata->rts_state = 0;
811 portdata->dtr_state = 0;
812
813 if (serial->dev) {
814 mutex_lock(&serial->disc_mutex);
Elina Pashevab64dc0a2009-10-27 13:49:59 -0700815 if (!serial->disconnected) {
816 serial->interface->needs_remote_wakeup = 0;
Oliver Neukum5b7c1172011-02-11 12:56:40 +0100817 /* odd error handling due to pm counters */
818 if (!usb_autopm_get_interface(serial->interface))
819 sierra_send_setup(port);
820 else
821 usb_autopm_get_interface_no_resume(serial->interface);
822
Elina Pashevab64dc0a2009-10-27 13:49:59 -0700823 }
Elina Pashevab9a44bc12009-06-11 14:30:21 +0100824 mutex_unlock(&serial->disc_mutex);
Oliver Neukume6929a92009-09-04 23:19:53 +0200825 spin_lock_irq(&intfdata->susp_lock);
826 portdata->opened = 0;
827 spin_unlock_irq(&intfdata->susp_lock);
828
Elina Pashevab9a44bc12009-06-11 14:30:21 +0100829
830 /* Stop reading urbs */
831 sierra_stop_rx_urbs(port);
832 /* .. and release them */
Elina Pasheva3a2b8082009-11-04 10:25:48 -0800833 for (i = 0; i < portdata->num_in_urbs; i++) {
Elina Pashevab9a44bc12009-06-11 14:30:21 +0100834 sierra_release_urb(portdata->in_urbs[i]);
835 portdata->in_urbs[i] = NULL;
836 }
837 }
838}
839
Alan Coxa509a7e2009-09-19 13:13:26 -0700840static int sierra_open(struct tty_struct *tty, struct usb_serial_port *port)
Kevin Lloyd033a3fb2006-10-13 23:53:21 -0700841{
842 struct sierra_port_private *portdata;
843 struct usb_serial *serial = port->serial;
Oliver Neukume6929a92009-09-04 23:19:53 +0200844 struct sierra_intf_private *intfdata = serial->private;
Greg Kroah-Hartman9e85c5f2007-06-20 14:22:23 +0900845 int i;
Elina Pashevab9a44bc12009-06-11 14:30:21 +0100846 int err;
847 int endpoint;
Kevin Lloyd033a3fb2006-10-13 23:53:21 -0700848 struct urb *urb;
849
850 portdata = usb_get_serial_port_data(port);
851
Elina Pasheva5d44b362009-04-27 18:41:52 -0700852 dev_dbg(&port->dev, "%s\n", __func__);
Kevin Lloyd033a3fb2006-10-13 23:53:21 -0700853
854 /* Set some sane defaults */
855 portdata->rts_state = 1;
856 portdata->dtr_state = 1;
857
Kevin Lloyd033a3fb2006-10-13 23:53:21 -0700858
Elina Pashevab9a44bc12009-06-11 14:30:21 +0100859 endpoint = port->bulk_in_endpointAddress;
Elina Pasheva3a2b8082009-11-04 10:25:48 -0800860 for (i = 0; i < portdata->num_in_urbs; i++) {
Elina Pashevab9a44bc12009-06-11 14:30:21 +0100861 urb = sierra_setup_urb(serial, endpoint, USB_DIR_IN, port,
862 IN_BUFLEN, GFP_KERNEL,
863 sierra_indat_callback);
864 portdata->in_urbs[i] = urb;
Kevin Lloyd033a3fb2006-10-13 23:53:21 -0700865 }
Elina Pashevab9a44bc12009-06-11 14:30:21 +0100866 /* clear halt condition */
867 usb_clear_halt(serial->dev,
868 usb_sndbulkpipe(serial->dev, endpoint) | USB_DIR_IN);
Kevin Lloyd033a3fb2006-10-13 23:53:21 -0700869
Elina Pashevab9a44bc12009-06-11 14:30:21 +0100870 err = sierra_submit_rx_urbs(port, GFP_KERNEL);
871 if (err) {
872 /* get rid of everything as in close */
873 sierra_close(port);
Elina Pashevab64dc0a2009-10-27 13:49:59 -0700874 /* restore balance for autopm */
Oliver Neukum5b7c1172011-02-11 12:56:40 +0100875 if (!serial->disconnected)
876 usb_autopm_put_interface(serial->interface);
Elina Pashevab9a44bc12009-06-11 14:30:21 +0100877 return err;
878 }
Alan Cox335f8512009-06-11 12:26:29 +0100879 sierra_send_setup(port);
Kevin Lloyd033a3fb2006-10-13 23:53:21 -0700880
Oliver Neukume6929a92009-09-04 23:19:53 +0200881 serial->interface->needs_remote_wakeup = 1;
882 spin_lock_irq(&intfdata->susp_lock);
883 portdata->opened = 1;
884 spin_unlock_irq(&intfdata->susp_lock);
885 usb_autopm_put_interface(serial->interface);
886
Greg Kroah-Hartman9e85c5f2007-06-20 14:22:23 +0900887 return 0;
Kevin Lloyd033a3fb2006-10-13 23:53:21 -0700888}
889
Elina Pashevab9a44bc12009-06-11 14:30:21 +0100890
Alan Cox335f8512009-06-11 12:26:29 +0100891static void sierra_dtr_rts(struct usb_serial_port *port, int on)
892{
893 struct usb_serial *serial = port->serial;
894 struct sierra_port_private *portdata;
895
896 portdata = usb_get_serial_port_data(port);
897 portdata->rts_state = on;
898 portdata->dtr_state = on;
899
900 if (serial->dev) {
901 mutex_lock(&serial->disc_mutex);
902 if (!serial->disconnected)
903 sierra_send_setup(port);
904 mutex_unlock(&serial->disc_mutex);
905 }
906}
907
Kevin Lloyd033a3fb2006-10-13 23:53:21 -0700908static int sierra_startup(struct usb_serial *serial)
909{
Kevin Lloyd033a3fb2006-10-13 23:53:21 -0700910 struct usb_serial_port *port;
911 struct sierra_port_private *portdata;
Elina Pasheva3a2b8082009-11-04 10:25:48 -0800912 struct sierra_iface_info *himemoryp = NULL;
Greg Kroah-Hartman9e85c5f2007-06-20 14:22:23 +0900913 int i;
Elina Pasheva3a2b8082009-11-04 10:25:48 -0800914 u8 ifnum;
Kevin Lloyd033a3fb2006-10-13 23:53:21 -0700915
Elina Pasheva5d44b362009-04-27 18:41:52 -0700916 dev_dbg(&serial->dev->dev, "%s\n", __func__);
Kevin Lloyd033a3fb2006-10-13 23:53:21 -0700917
Kevin Lloyd228426e2008-01-10 11:11:04 -0800918 /* Set Device mode to D0 */
Kevin Lloyd112225b2007-07-16 13:49:27 -0700919 sierra_set_power_state(serial->dev, 0x0000);
920
Kevin Lloyd228426e2008-01-10 11:11:04 -0800921 /* Check NMEA and set */
922 if (nmea)
923 sierra_vsc_set_nmea(serial->dev, 1);
924
Kevin Lloyd033a3fb2006-10-13 23:53:21 -0700925 /* Now setup per port private data */
926 for (i = 0; i < serial->num_ports; i++) {
927 port = serial->port[i];
928 portdata = kzalloc(sizeof(*portdata), GFP_KERNEL);
929 if (!portdata) {
Kevin Lloyd7384a922008-09-16 21:05:24 -0700930 dev_dbg(&port->dev, "%s: kmalloc for "
Elina Pasheva3a2b8082009-11-04 10:25:48 -0800931 "sierra_port_private (%d) failed!\n",
Kevin Lloyd7384a922008-09-16 21:05:24 -0700932 __func__, i);
Greg Kroah-Hartman17c23272007-06-20 14:22:23 +0900933 return -ENOMEM;
Kevin Lloyd033a3fb2006-10-13 23:53:21 -0700934 }
Greg Kroah-Hartman17c23272007-06-20 14:22:23 +0900935 spin_lock_init(&portdata->lock);
Oliver Neukume6929a92009-09-04 23:19:53 +0200936 init_usb_anchor(&portdata->active);
937 init_usb_anchor(&portdata->delayed);
Elina Pasheva3a2b8082009-11-04 10:25:48 -0800938 ifnum = i;
939 /* Assume low memory requirements */
940 portdata->num_out_urbs = N_OUT_URB;
941 portdata->num_in_urbs = N_IN_URB;
942
943 /* Determine actual memory requirements */
944 if (serial->num_ports == 1) {
945 /* Get interface number for composite device */
946 ifnum = sierra_calc_interface(serial);
947 himemoryp =
948 (struct sierra_iface_info *)&typeB_interface_list;
949 if (is_himemory(ifnum, himemoryp)) {
950 portdata->num_out_urbs = N_OUT_URB_HM;
951 portdata->num_in_urbs = N_IN_URB_HM;
952 }
953 }
954 else {
955 himemoryp =
956 (struct sierra_iface_info *)&typeA_interface_list;
957 if (is_himemory(i, himemoryp)) {
958 portdata->num_out_urbs = N_OUT_URB_HM;
959 portdata->num_in_urbs = N_IN_URB_HM;
960 }
961 }
962 dev_dbg(&serial->dev->dev,
963 "Memory usage (urbs) interface #%d, in=%d, out=%d\n",
964 ifnum,portdata->num_in_urbs, portdata->num_out_urbs );
Elina Pashevab9a44bc12009-06-11 14:30:21 +0100965 /* Set the port private data pointer */
Kevin Lloyd033a3fb2006-10-13 23:53:21 -0700966 usb_set_serial_port_data(port, portdata);
Kevin Lloyd033a3fb2006-10-13 23:53:21 -0700967 }
968
Greg Kroah-Hartman17c23272007-06-20 14:22:23 +0900969 return 0;
Kevin Lloyd033a3fb2006-10-13 23:53:21 -0700970}
971
Alan Stern7bae0a02009-07-07 09:50:14 -0400972static void sierra_release(struct usb_serial *serial)
Kevin Lloyd033a3fb2006-10-13 23:53:21 -0700973{
Elina Pashevab9a44bc12009-06-11 14:30:21 +0100974 int i;
Kevin Lloyd033a3fb2006-10-13 23:53:21 -0700975 struct usb_serial_port *port;
976 struct sierra_port_private *portdata;
977
Elina Pasheva5d44b362009-04-27 18:41:52 -0700978 dev_dbg(&serial->dev->dev, "%s\n", __func__);
Kevin Lloyd033a3fb2006-10-13 23:53:21 -0700979
Kevin Lloyd033a3fb2006-10-13 23:53:21 -0700980 for (i = 0; i < serial->num_ports; ++i) {
981 port = serial->port[i];
Greg Kroah-Hartmanf094e4f2007-04-26 00:12:01 -0700982 if (!port)
983 continue;
Kevin Lloyd033a3fb2006-10-13 23:53:21 -0700984 portdata = usb_get_serial_port_data(port);
Greg Kroah-Hartmanf094e4f2007-04-26 00:12:01 -0700985 if (!portdata)
986 continue;
Greg Kroah-Hartman9e85c5f2007-06-20 14:22:23 +0900987 kfree(portdata);
Kevin Lloyd033a3fb2006-10-13 23:53:21 -0700988 }
989}
990
Andrew Mortoncd604512009-09-23 15:57:43 -0700991#ifdef CONFIG_PM
Oliver Neukume6929a92009-09-04 23:19:53 +0200992static void stop_read_write_urbs(struct usb_serial *serial)
993{
Elina Pashevab64dc0a2009-10-27 13:49:59 -0700994 int i;
Oliver Neukume6929a92009-09-04 23:19:53 +0200995 struct usb_serial_port *port;
996 struct sierra_port_private *portdata;
997
998 /* Stop reading/writing urbs */
999 for (i = 0; i < serial->num_ports; ++i) {
1000 port = serial->port[i];
1001 portdata = usb_get_serial_port_data(port);
Elina Pashevab64dc0a2009-10-27 13:49:59 -07001002 sierra_stop_rx_urbs(port);
Oliver Neukume6929a92009-09-04 23:19:53 +02001003 usb_kill_anchored_urbs(&portdata->active);
1004 }
1005}
1006
1007static int sierra_suspend(struct usb_serial *serial, pm_message_t message)
1008{
1009 struct sierra_intf_private *intfdata;
1010 int b;
1011
Alan Stern5b1b0b82011-08-19 23:49:48 +02001012 if (PMSG_IS_AUTO(message)) {
Oliver Neukume6929a92009-09-04 23:19:53 +02001013 intfdata = serial->private;
1014 spin_lock_irq(&intfdata->susp_lock);
1015 b = intfdata->in_flight;
1016
1017 if (b) {
1018 spin_unlock_irq(&intfdata->susp_lock);
1019 return -EBUSY;
1020 } else {
1021 intfdata->suspended = 1;
1022 spin_unlock_irq(&intfdata->susp_lock);
1023 }
1024 }
1025 stop_read_write_urbs(serial);
1026
1027 return 0;
1028}
1029
1030static int sierra_resume(struct usb_serial *serial)
1031{
1032 struct usb_serial_port *port;
1033 struct sierra_intf_private *intfdata = serial->private;
1034 struct sierra_port_private *portdata;
1035 struct urb *urb;
1036 int ec = 0;
1037 int i, err;
1038
1039 spin_lock_irq(&intfdata->susp_lock);
1040 for (i = 0; i < serial->num_ports; i++) {
1041 port = serial->port[i];
1042 portdata = usb_get_serial_port_data(port);
1043
1044 while ((urb = usb_get_from_anchor(&portdata->delayed))) {
1045 usb_anchor_urb(urb, &portdata->active);
1046 intfdata->in_flight++;
1047 err = usb_submit_urb(urb, GFP_ATOMIC);
1048 if (err < 0) {
1049 intfdata->in_flight--;
1050 usb_unanchor_urb(urb);
1051 usb_scuttle_anchored_urbs(&portdata->delayed);
1052 break;
1053 }
1054 }
1055
1056 if (portdata->opened) {
1057 err = sierra_submit_rx_urbs(port, GFP_ATOMIC);
1058 if (err)
1059 ec++;
1060 }
1061 }
1062 intfdata->suspended = 0;
1063 spin_unlock_irq(&intfdata->susp_lock);
1064
1065 return ec ? -EIO : 0;
1066}
Elina Pasheva7650cd92010-02-11 18:37:40 -08001067
1068static int sierra_reset_resume(struct usb_interface *intf)
1069{
1070 struct usb_serial *serial = usb_get_intfdata(intf);
1071 dev_err(&serial->dev->dev, "%s\n", __func__);
1072 return usb_serial_resume(intf);
1073}
Andrew Mortoncd604512009-09-23 15:57:43 -07001074#else
1075#define sierra_suspend NULL
1076#define sierra_resume NULL
Elina Pasheva7650cd92010-02-11 18:37:40 -08001077#define sierra_reset_resume NULL
Andrew Mortoncd604512009-09-23 15:57:43 -07001078#endif
Oliver Neukume6929a92009-09-04 23:19:53 +02001079
Elina Pasheva7650cd92010-02-11 18:37:40 -08001080static struct usb_driver sierra_driver = {
1081 .name = "sierra",
1082 .probe = usb_serial_probe,
1083 .disconnect = usb_serial_disconnect,
1084 .suspend = usb_serial_suspend,
1085 .resume = usb_serial_resume,
1086 .reset_resume = sierra_reset_resume,
1087 .id_table = id_table,
1088 .no_dynamic_id = 1,
1089 .supports_autosuspend = 1,
1090};
1091
Kevin Lloyd228426e2008-01-10 11:11:04 -08001092static struct usb_serial_driver sierra_device = {
Greg Kroah-Hartman964ee1d2006-10-17 10:17:58 -07001093 .driver = {
1094 .owner = THIS_MODULE,
Kevin Lloyd4e0fee82008-07-10 14:14:47 -07001095 .name = "sierra",
Greg Kroah-Hartman964ee1d2006-10-17 10:17:58 -07001096 },
Kevin Lloyd228426e2008-01-10 11:11:04 -08001097 .description = "Sierra USB modem",
1098 .id_table = id_table,
Johannes Hölzld9b1b782006-12-17 21:50:24 +01001099 .usb_driver = &sierra_driver,
Kevin Lloyd228426e2008-01-10 11:11:04 -08001100 .calc_num_ports = sierra_calc_num_ports,
1101 .probe = sierra_probe,
Greg Kroah-Hartman964ee1d2006-10-17 10:17:58 -07001102 .open = sierra_open,
1103 .close = sierra_close,
Alan Cox335f8512009-06-11 12:26:29 +01001104 .dtr_rts = sierra_dtr_rts,
Greg Kroah-Hartman964ee1d2006-10-17 10:17:58 -07001105 .write = sierra_write,
1106 .write_room = sierra_write_room,
Greg Kroah-Hartman964ee1d2006-10-17 10:17:58 -07001107 .set_termios = sierra_set_termios,
Greg Kroah-Hartman964ee1d2006-10-17 10:17:58 -07001108 .tiocmget = sierra_tiocmget,
1109 .tiocmset = sierra_tiocmset,
1110 .attach = sierra_startup,
Alan Stern7bae0a02009-07-07 09:50:14 -04001111 .release = sierra_release,
Oliver Neukume6929a92009-09-04 23:19:53 +02001112 .suspend = sierra_suspend,
1113 .resume = sierra_resume,
Greg Kroah-Hartman964ee1d2006-10-17 10:17:58 -07001114 .read_int_callback = sierra_instat_callback,
1115};
1116
1117/* Functions used by new usb-serial code. */
1118static int __init sierra_init(void)
1119{
1120 int retval;
Kevin Lloyd228426e2008-01-10 11:11:04 -08001121 retval = usb_serial_register(&sierra_device);
Greg Kroah-Hartman964ee1d2006-10-17 10:17:58 -07001122 if (retval)
Kevin Lloyd228426e2008-01-10 11:11:04 -08001123 goto failed_device_register;
Greg Kroah-Hartman964ee1d2006-10-17 10:17:58 -07001124
1125
1126 retval = usb_register(&sierra_driver);
1127 if (retval)
1128 goto failed_driver_register;
1129
Greg Kroah-Hartmanc197a8d2008-08-18 13:21:04 -07001130 printk(KERN_INFO KBUILD_MODNAME ": " DRIVER_VERSION ":"
1131 DRIVER_DESC "\n");
Greg Kroah-Hartman964ee1d2006-10-17 10:17:58 -07001132
1133 return 0;
1134
1135failed_driver_register:
Kevin Lloyd228426e2008-01-10 11:11:04 -08001136 usb_serial_deregister(&sierra_device);
1137failed_device_register:
Greg Kroah-Hartman964ee1d2006-10-17 10:17:58 -07001138 return retval;
1139}
1140
1141static void __exit sierra_exit(void)
1142{
Alan Cox9660ea32008-07-22 11:14:59 +01001143 usb_deregister(&sierra_driver);
Kevin Lloyd228426e2008-01-10 11:11:04 -08001144 usb_serial_deregister(&sierra_device);
Greg Kroah-Hartman964ee1d2006-10-17 10:17:58 -07001145}
1146
1147module_init(sierra_init);
1148module_exit(sierra_exit);
1149
Kevin Lloyd033a3fb2006-10-13 23:53:21 -07001150MODULE_AUTHOR(DRIVER_AUTHOR);
1151MODULE_DESCRIPTION(DRIVER_DESC);
1152MODULE_VERSION(DRIVER_VERSION);
Kevin Lloyd69de51f2006-06-30 11:17:55 -07001153MODULE_LICENSE("GPL");
Kevin Lloyd033a3fb2006-10-13 23:53:21 -07001154
Kevin Lloyd4e0fee82008-07-10 14:14:47 -07001155module_param(nmea, bool, S_IRUGO | S_IWUSR);
Kevin Lloyd228426e2008-01-10 11:11:04 -08001156MODULE_PARM_DESC(nmea, "NMEA streaming");
1157
Kevin Lloyd033a3fb2006-10-13 23:53:21 -07001158module_param(debug, bool, S_IRUGO | S_IWUSR);
1159MODULE_PARM_DESC(debug, "Debug messages");