Commit | Line | Data |
---|---|---|
69de51fd | 1 | /* |
033a3fb9 KL |
2 | USB Driver for Sierra Wireless |
3 | ||
40d2ff32 EP |
4 | 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> | |
033a3fb9 KL |
8 | |
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> | |
033a3fb9 | 18 | */ |
3a2b808e EP |
19 | /* Uncomment to log function calls */ |
20 | /* #define DEBUG */ | |
21 | #define DRIVER_VERSION "v.1.7.16" | |
40d2ff32 | 22 | #define DRIVER_AUTHOR "Kevin Lloyd, Elina Pasheva, Matthew Safar, Rory Filer" |
033a3fb9 | 23 | #define DRIVER_DESC "USB Driver for Sierra Wireless USB modems" |
69de51fd KL |
24 | |
25 | #include <linux/kernel.h> | |
033a3fb9 KL |
26 | #include <linux/jiffies.h> |
27 | #include <linux/errno.h> | |
69de51fd | 28 | #include <linux/tty.h> |
033a3fb9 | 29 | #include <linux/tty_flip.h> |
69de51fd KL |
30 | #include <linux/module.h> |
31 | #include <linux/usb.h> | |
a969888c | 32 | #include <linux/usb/serial.h> |
69de51fd | 33 | |
228426ed KL |
34 | #define SWIMS_USB_REQUEST_SetPower 0x00 |
35 | #define SWIMS_USB_REQUEST_SetNmea 0x07 | |
112225b1 | 36 | |
3a2b808e EP |
37 | #define N_IN_URB_HM 8 |
38 | #define N_OUT_URB_HM 64 | |
39 | #define N_IN_URB 4 | |
40 | #define N_OUT_URB 4 | |
112225b1 KL |
41 | #define IN_BUFLEN 4096 |
42 | ||
40d2ff32 EP |
43 | #define MAX_TRANSFER (PAGE_SIZE - 512) |
44 | /* MAX_TRANSFER is chosen so that the VM is not stressed by | |
45 | allocations > PAGE_SIZE and the number of packets in a page | |
46 | is an integer 512 is the largest possible packet on EHCI */ | |
47 | ||
112225b1 | 48 | static int debug; |
228426ed | 49 | static int nmea; |
112225b1 | 50 | |
4db2299d EP |
51 | /* Used in interface blacklisting */ |
52 | struct sierra_iface_info { | |
53 | const u32 infolen; /* number of interface numbers on blacklist */ | |
54 | const u8 *ifaceinfo; /* pointer to the array holding the numbers */ | |
55 | }; | |
56 | ||
e6929a90 ON |
57 | struct sierra_intf_private { |
58 | spinlock_t susp_lock; | |
59 | unsigned int suspended:1; | |
60 | int in_flight; | |
61 | }; | |
62 | ||
82a24e68 | 63 | static int sierra_set_power_state(struct usb_device *udev, __u16 swiState) |
112225b1 KL |
64 | { |
65 | int result; | |
5d44b361 | 66 | dev_dbg(&udev->dev, "%s\n", __func__); |
112225b1 | 67 | result = usb_control_msg(udev, usb_sndctrlpipe(udev, 0), |
228426ed | 68 | SWIMS_USB_REQUEST_SetPower, /* __u8 request */ |
f3564de4 | 69 | USB_TYPE_VENDOR, /* __u8 request type */ |
228426ed KL |
70 | swiState, /* __u16 value */ |
71 | 0, /* __u16 index */ | |
72 | NULL, /* void *data */ | |
73 | 0, /* __u16 size */ | |
74 | USB_CTRL_SET_TIMEOUT); /* int timeout */ | |
112225b1 KL |
75 | return result; |
76 | } | |
77 | ||
228426ed | 78 | static int sierra_vsc_set_nmea(struct usb_device *udev, __u16 enable) |
112225b1 KL |
79 | { |
80 | int result; | |
5d44b361 | 81 | dev_dbg(&udev->dev, "%s\n", __func__); |
228426ed KL |
82 | result = usb_control_msg(udev, usb_sndctrlpipe(udev, 0), |
83 | SWIMS_USB_REQUEST_SetNmea, /* __u8 request */ | |
f3564de4 | 84 | USB_TYPE_VENDOR, /* __u8 request type */ |
228426ed KL |
85 | enable, /* __u16 value */ |
86 | 0x0000, /* __u16 index */ | |
87 | NULL, /* void *data */ | |
88 | 0, /* __u16 size */ | |
89 | USB_CTRL_SET_TIMEOUT); /* int timeout */ | |
90 | return result; | |
91 | } | |
92 | ||
93 | static int sierra_calc_num_ports(struct usb_serial *serial) | |
94 | { | |
9636b683 EP |
95 | int num_ports = 0; |
96 | u8 ifnum, numendpoints; | |
228426ed | 97 | |
9636b683 | 98 | dev_dbg(&serial->dev->dev, "%s\n", __func__); |
228426ed | 99 | |
9636b683 EP |
100 | ifnum = serial->interface->cur_altsetting->desc.bInterfaceNumber; |
101 | numendpoints = serial->interface->cur_altsetting->desc.bNumEndpoints; | |
228426ed | 102 | |
9636b683 EP |
103 | /* Dummy interface present on some SKUs should be ignored */ |
104 | if (ifnum == 0x99) | |
105 | num_ports = 0; | |
106 | else if (numendpoints <= 3) | |
107 | num_ports = 1; | |
108 | else | |
109 | num_ports = (numendpoints-1)/2; | |
110 | return num_ports; | |
228426ed KL |
111 | } |
112 | ||
4db2299d EP |
113 | static int is_blacklisted(const u8 ifnum, |
114 | const struct sierra_iface_info *blacklist) | |
115 | { | |
116 | const u8 *info; | |
117 | int i; | |
118 | ||
119 | if (blacklist) { | |
120 | info = blacklist->ifaceinfo; | |
121 | ||
122 | for (i = 0; i < blacklist->infolen; i++) { | |
123 | if (info[i] == ifnum) | |
124 | return 1; | |
125 | } | |
126 | } | |
127 | return 0; | |
128 | } | |
129 | ||
3a2b808e EP |
130 | static int is_himemory(const u8 ifnum, |
131 | const struct sierra_iface_info *himemorylist) | |
132 | { | |
133 | const u8 *info; | |
134 | int i; | |
135 | ||
136 | if (himemorylist) { | |
137 | info = himemorylist->ifaceinfo; | |
138 | ||
139 | for (i=0; i < himemorylist->infolen; i++) { | |
140 | if (info[i] == ifnum) | |
141 | return 1; | |
142 | } | |
143 | } | |
144 | return 0; | |
145 | } | |
146 | ||
7106967e KL |
147 | static int sierra_calc_interface(struct usb_serial *serial) |
148 | { | |
4e0fee82 KL |
149 | int interface; |
150 | struct usb_interface *p_interface; | |
151 | struct usb_host_interface *p_host_interface; | |
5d44b361 | 152 | dev_dbg(&serial->dev->dev, "%s\n", __func__); |
7106967e | 153 | |
4e0fee82 KL |
154 | /* Get the interface structure pointer from the serial struct */ |
155 | p_interface = serial->interface; | |
7106967e | 156 | |
4e0fee82 KL |
157 | /* Get a pointer to the host interface structure */ |
158 | p_host_interface = p_interface->cur_altsetting; | |
7106967e | 159 | |
4e0fee82 KL |
160 | /* read the interface descriptor for this active altsetting |
161 | * to find out the interface number we are on | |
162 | */ | |
163 | interface = p_host_interface->desc.bInterfaceNumber; | |
7106967e | 164 | |
4e0fee82 | 165 | return interface; |
7106967e KL |
166 | } |
167 | ||
228426ed KL |
168 | static int sierra_probe(struct usb_serial *serial, |
169 | const struct usb_device_id *id) | |
170 | { | |
171 | int result = 0; | |
112225b1 | 172 | struct usb_device *udev; |
e6929a90 | 173 | struct sierra_intf_private *data; |
228426ed | 174 | u8 ifnum; |
112225b1 | 175 | |
228426ed | 176 | udev = serial->dev; |
9636b683 | 177 | dev_dbg(&udev->dev, "%s\n", __func__); |
112225b1 | 178 | |
e3173b22 | 179 | ifnum = sierra_calc_interface(serial); |
e3173b22 KL |
180 | /* |
181 | * If this interface supports more than 1 alternate | |
182 | * select the 2nd one | |
183 | */ | |
184 | if (serial->interface->num_altsetting == 2) { | |
185 | dev_dbg(&udev->dev, "Selecting alt setting for interface %d\n", | |
186 | ifnum); | |
187 | /* We know the alternate setting is 1 for the MC8785 */ | |
188 | usb_set_interface(udev, ifnum, 1); | |
189 | } | |
7106967e | 190 | |
4db2299d EP |
191 | /* ifnum could have changed - by calling usb_set_interface */ |
192 | ifnum = sierra_calc_interface(serial); | |
193 | ||
194 | if (is_blacklisted(ifnum, | |
195 | (struct sierra_iface_info *)id->driver_info)) { | |
196 | dev_dbg(&serial->dev->dev, | |
197 | "Ignoring blacklisted interface #%d\n", ifnum); | |
198 | return -ENODEV; | |
199 | } | |
200 | ||
e6929a90 ON |
201 | data = serial->private = kzalloc(sizeof(struct sierra_intf_private), GFP_KERNEL); |
202 | if (!data) | |
203 | return -ENOMEM; | |
204 | spin_lock_init(&data->susp_lock); | |
205 | ||
228426ed | 206 | return result; |
112225b1 | 207 | } |
033a3fb9 | 208 | |
3a2b808e EP |
209 | /* interfaces with higher memory requirements */ |
210 | static const u8 hi_memory_typeA_ifaces[] = { 0, 2 }; | |
211 | static const struct sierra_iface_info typeA_interface_list = { | |
212 | .infolen = ARRAY_SIZE(hi_memory_typeA_ifaces), | |
213 | .ifaceinfo = hi_memory_typeA_ifaces, | |
214 | }; | |
215 | ||
216 | static const u8 hi_memory_typeB_ifaces[] = { 3, 4, 5, 6 }; | |
217 | static const struct sierra_iface_info typeB_interface_list = { | |
218 | .infolen = ARRAY_SIZE(hi_memory_typeB_ifaces), | |
219 | .ifaceinfo = hi_memory_typeB_ifaces, | |
220 | }; | |
221 | ||
222 | /* 'blacklist' of interfaces not served by this driver */ | |
4db2299d EP |
223 | static const u8 direct_ip_non_serial_ifaces[] = { 7, 8, 9, 10, 11 }; |
224 | static const struct sierra_iface_info direct_ip_interface_blacklist = { | |
225 | .infolen = ARRAY_SIZE(direct_ip_non_serial_ifaces), | |
226 | .ifaceinfo = direct_ip_non_serial_ifaces, | |
227 | }; | |
228 | ||
7d40d7e8 | 229 | static const struct usb_device_id id_table[] = { |
c5f3d87d EP |
230 | { USB_DEVICE(0x0F3D, 0x0112) }, /* Airprime/Sierra PC 5220 */ |
231 | { USB_DEVICE(0x03F0, 0x1B1D) }, /* HP ev2200 a.k.a MC5720 */ | |
232 | { USB_DEVICE(0x03F0, 0x1E1D) }, /* HP hs2300 a.k.a MC8775 */ | |
233 | ||
e43062dd | 234 | { USB_DEVICE(0x1199, 0x0017) }, /* Sierra Wireless EM5625 */ |
69de51fd | 235 | { USB_DEVICE(0x1199, 0x0018) }, /* Sierra Wireless MC5720 */ |
e43062dd | 236 | { USB_DEVICE(0x1199, 0x0218) }, /* Sierra Wireless MC5720 */ |
69de51fd | 237 | { USB_DEVICE(0x1199, 0x0020) }, /* Sierra Wireless MC5725 */ |
b9e13ac3 | 238 | { USB_DEVICE(0x1199, 0x0220) }, /* Sierra Wireless MC5725 */ |
c5f3d87d EP |
239 | { USB_DEVICE(0x1199, 0x0022) }, /* Sierra Wireless EM5725 */ |
240 | { USB_DEVICE(0x1199, 0x0024) }, /* Sierra Wireless MC5727 */ | |
241 | { USB_DEVICE(0x1199, 0x0224) }, /* Sierra Wireless MC5727 */ | |
69de51fd | 242 | { USB_DEVICE(0x1199, 0x0019) }, /* Sierra Wireless AirCard 595 */ |
e43062dd | 243 | { USB_DEVICE(0x1199, 0x0021) }, /* Sierra Wireless AirCard 597E */ |
c5f3d87d | 244 | { USB_DEVICE(0x1199, 0x0112) }, /* Sierra Wireless AirCard 580 */ |
9454c46a | 245 | { USB_DEVICE(0x1199, 0x0120) }, /* Sierra Wireless USB Dongle 595U */ |
c5f3d87d | 246 | /* Sierra Wireless C597 */ |
4e0fee82 | 247 | { USB_DEVICE_AND_INTERFACE_INFO(0x1199, 0x0023, 0xFF, 0xFF, 0xFF) }, |
c5f3d87d | 248 | /* Sierra Wireless T598 */ |
e3173b22 | 249 | { USB_DEVICE_AND_INTERFACE_INFO(0x1199, 0x0025, 0xFF, 0xFF, 0xFF) }, |
c5f3d87d EP |
250 | { USB_DEVICE(0x1199, 0x0026) }, /* Sierra Wireless T11 */ |
251 | { USB_DEVICE(0x1199, 0x0027) }, /* Sierra Wireless AC402 */ | |
252 | { USB_DEVICE(0x1199, 0x0028) }, /* Sierra Wireless MC5728 */ | |
253 | { USB_DEVICE(0x1199, 0x0029) }, /* Sierra Wireless Device */ | |
9454c46a | 254 | |
69de51fd KL |
255 | { USB_DEVICE(0x1199, 0x6802) }, /* Sierra Wireless MC8755 */ |
256 | { USB_DEVICE(0x1199, 0x6803) }, /* Sierra Wireless MC8765 */ | |
c5f3d87d EP |
257 | { USB_DEVICE(0x1199, 0x6804) }, /* Sierra Wireless MC8755 */ |
258 | { USB_DEVICE(0x1199, 0x6805) }, /* Sierra Wireless MC8765 */ | |
259 | { USB_DEVICE(0x1199, 0x6808) }, /* Sierra Wireless MC8755 */ | |
260 | { USB_DEVICE(0x1199, 0x6809) }, /* Sierra Wireless MC8765 */ | |
9454c46a | 261 | { USB_DEVICE(0x1199, 0x6812) }, /* Sierra Wireless MC8775 & AC 875U */ |
c5f3d87d | 262 | { USB_DEVICE(0x1199, 0x6813) }, /* Sierra Wireless MC8775 */ |
7f170a63 | 263 | { USB_DEVICE(0x1199, 0x6815) }, /* Sierra Wireless MC8775 */ |
c5f3d87d | 264 | { USB_DEVICE(0x1199, 0x6816) }, /* Sierra Wireless MC8775 */ |
69de51fd | 265 | { USB_DEVICE(0x1199, 0x6820) }, /* Sierra Wireless AirCard 875 */ |
7106967e | 266 | { USB_DEVICE(0x1199, 0x6821) }, /* Sierra Wireless AirCard 875U */ |
c5f3d87d | 267 | { USB_DEVICE(0x1199, 0x6822) }, /* Sierra Wireless AirCard 875E */ |
4e0fee82 KL |
268 | { USB_DEVICE(0x1199, 0x6832) }, /* Sierra Wireless MC8780 */ |
269 | { USB_DEVICE(0x1199, 0x6833) }, /* Sierra Wireless MC8781 */ | |
c5f3d87d EP |
270 | { USB_DEVICE(0x1199, 0x6834) }, /* Sierra Wireless MC8780 */ |
271 | { USB_DEVICE(0x1199, 0x6835) }, /* Sierra Wireless MC8781 */ | |
272 | { USB_DEVICE(0x1199, 0x6838) }, /* Sierra Wireless MC8780 */ | |
273 | { USB_DEVICE(0x1199, 0x6839) }, /* Sierra Wireless MC8781 */ | |
b77a5c70 | 274 | { USB_DEVICE(0x1199, 0x683A) }, /* Sierra Wireless MC8785 */ |
e3173b22 | 275 | { USB_DEVICE(0x1199, 0x683B) }, /* Sierra Wireless MC8785 Composite */ |
4db2299d EP |
276 | /* Sierra Wireless MC8790, MC8791, MC8792 Composite */ |
277 | { USB_DEVICE(0x1199, 0x683C) }, | |
278 | { USB_DEVICE(0x1199, 0x683D) }, /* Sierra Wireless MC8791 Composite */ | |
279 | /* Sierra Wireless MC8790, MC8791, MC8792 */ | |
280 | { USB_DEVICE(0x1199, 0x683E) }, | |
9454c46a KL |
281 | { USB_DEVICE(0x1199, 0x6850) }, /* Sierra Wireless AirCard 880 */ |
282 | { USB_DEVICE(0x1199, 0x6851) }, /* Sierra Wireless AirCard 881 */ | |
283 | { USB_DEVICE(0x1199, 0x6852) }, /* Sierra Wireless AirCard 880 E */ | |
284 | { USB_DEVICE(0x1199, 0x6853) }, /* Sierra Wireless AirCard 881 E */ | |
6835b32c | 285 | { USB_DEVICE(0x1199, 0x6855) }, /* Sierra Wireless AirCard 880 U */ |
62aad3ab | 286 | { USB_DEVICE(0x1199, 0x6856) }, /* Sierra Wireless AirCard 881 U */ |
e3173b22 KL |
287 | { USB_DEVICE(0x1199, 0x6859) }, /* Sierra Wireless AirCard 885 E */ |
288 | { USB_DEVICE(0x1199, 0x685A) }, /* Sierra Wireless AirCard 885 E */ | |
289 | /* Sierra Wireless C885 */ | |
290 | { USB_DEVICE_AND_INTERFACE_INFO(0x1199, 0x6880, 0xFF, 0xFF, 0xFF)}, | |
c5f3d87d | 291 | /* Sierra Wireless C888, Air Card 501, USB 303, USB 304 */ |
e3173b22 | 292 | { USB_DEVICE_AND_INTERFACE_INFO(0x1199, 0x6890, 0xFF, 0xFF, 0xFF)}, |
c5f3d87d | 293 | /* Sierra Wireless C22/C33 */ |
73b2c205 | 294 | { USB_DEVICE_AND_INTERFACE_INFO(0x1199, 0x6891, 0xFF, 0xFF, 0xFF)}, |
c5f3d87d | 295 | /* Sierra Wireless HSPA Non-Composite Device */ |
e3173b22 | 296 | { USB_DEVICE_AND_INTERFACE_INFO(0x1199, 0x6892, 0xFF, 0xFF, 0xFF)}, |
c5f3d87d | 297 | { USB_DEVICE(0x1199, 0x6893) }, /* Sierra Wireless Device */ |
4db2299d EP |
298 | { USB_DEVICE(0x1199, 0x68A3), /* Sierra Wireless Direct IP modems */ |
299 | .driver_info = (kernel_ulong_t)&direct_ip_interface_blacklist | |
300 | }, | |
1ebca9da | 301 | { USB_DEVICE(0x413C, 0x08133) }, /* Dell Computer Corp. Wireless 5720 VZW Mobile Broadband (EVDO Rev-A) Minicard GPS Port */ |
4db2299d | 302 | |
033a3fb9 KL |
303 | { } |
304 | }; | |
964ee1de | 305 | MODULE_DEVICE_TABLE(usb, id_table); |
033a3fb9 | 306 | |
033a3fb9 | 307 | |
033a3fb9 | 308 | struct sierra_port_private { |
17c23274 GKH |
309 | spinlock_t lock; /* lock the structure */ |
310 | int outstanding_urbs; /* number of out urbs in flight */ | |
e6929a90 ON |
311 | struct usb_anchor active; |
312 | struct usb_anchor delayed; | |
17c23274 | 313 | |
3a2b808e EP |
314 | int num_out_urbs; |
315 | int num_in_urbs; | |
4f4f9c53 | 316 | /* Input endpoints and buffers for this port */ |
3a2b808e | 317 | struct urb *in_urbs[N_IN_URB_HM]; |
033a3fb9 KL |
318 | |
319 | /* Settings for the port */ | |
320 | int rts_state; /* Handshaking pins (outputs) */ | |
321 | int dtr_state; | |
322 | int cts_state; /* Handshaking pins (inputs) */ | |
323 | int dsr_state; | |
324 | int dcd_state; | |
325 | int ri_state; | |
e6929a90 | 326 | unsigned int opened:1; |
033a3fb9 KL |
327 | }; |
328 | ||
335f8514 | 329 | static int sierra_send_setup(struct usb_serial_port *port) |
69de51fd | 330 | { |
964ee1de GKH |
331 | struct usb_serial *serial = port->serial; |
332 | struct sierra_port_private *portdata; | |
228426ed | 333 | __u16 interface = 0; |
335f8514 | 334 | int val = 0; |
3c77d513 EP |
335 | int do_send = 0; |
336 | int retval; | |
033a3fb9 | 337 | |
5d44b361 | 338 | dev_dbg(&port->dev, "%s\n", __func__); |
033a3fb9 | 339 | |
964ee1de | 340 | portdata = usb_get_serial_port_data(port); |
033a3fb9 | 341 | |
335f8514 AC |
342 | if (portdata->dtr_state) |
343 | val |= 0x01; | |
344 | if (portdata->rts_state) | |
345 | val |= 0x02; | |
346 | ||
347 | /* If composite device then properly report interface */ | |
00b040de | 348 | if (serial->num_ports == 1) { |
335f8514 | 349 | interface = sierra_calc_interface(serial); |
00b040de AC |
350 | /* Control message is sent only to interfaces with |
351 | * interrupt_in endpoints | |
352 | */ | |
353 | if (port->interrupt_in_urb) { | |
354 | /* send control message */ | |
3c77d513 | 355 | do_send = 1; |
00b040de AC |
356 | } |
357 | } | |
335f8514 AC |
358 | |
359 | /* Otherwise the need to do non-composite mapping */ | |
360 | else { | |
361 | if (port->bulk_out_endpointAddress == 2) | |
362 | interface = 0; | |
363 | else if (port->bulk_out_endpointAddress == 4) | |
364 | interface = 1; | |
365 | else if (port->bulk_out_endpointAddress == 5) | |
366 | interface = 2; | |
3c77d513 EP |
367 | |
368 | do_send = 1; | |
00b040de | 369 | } |
3c77d513 EP |
370 | if (!do_send) |
371 | return 0; | |
372 | ||
373 | usb_autopm_get_interface(serial->interface); | |
374 | retval = usb_control_msg(serial->dev, usb_rcvctrlpipe(serial->dev, 0), | |
375 | 0x22, 0x21, val, interface, NULL, 0, USB_CTRL_SET_TIMEOUT); | |
376 | usb_autopm_put_interface(serial->interface); | |
377 | ||
378 | return retval; | |
69de51fd KL |
379 | } |
380 | ||
95da310e AC |
381 | static void sierra_set_termios(struct tty_struct *tty, |
382 | struct usb_serial_port *port, struct ktermios *old_termios) | |
033a3fb9 | 383 | { |
5d44b361 | 384 | dev_dbg(&port->dev, "%s\n", __func__); |
95da310e | 385 | tty_termios_copy_hw(tty->termios, old_termios); |
335f8514 | 386 | sierra_send_setup(port); |
033a3fb9 KL |
387 | } |
388 | ||
95da310e | 389 | static int sierra_tiocmget(struct tty_struct *tty, struct file *file) |
033a3fb9 | 390 | { |
95da310e | 391 | struct usb_serial_port *port = tty->driver_data; |
033a3fb9 KL |
392 | unsigned int value; |
393 | struct sierra_port_private *portdata; | |
394 | ||
5d44b361 | 395 | dev_dbg(&port->dev, "%s\n", __func__); |
033a3fb9 KL |
396 | portdata = usb_get_serial_port_data(port); |
397 | ||
398 | value = ((portdata->rts_state) ? TIOCM_RTS : 0) | | |
399 | ((portdata->dtr_state) ? TIOCM_DTR : 0) | | |
400 | ((portdata->cts_state) ? TIOCM_CTS : 0) | | |
401 | ((portdata->dsr_state) ? TIOCM_DSR : 0) | | |
402 | ((portdata->dcd_state) ? TIOCM_CAR : 0) | | |
403 | ((portdata->ri_state) ? TIOCM_RNG : 0); | |
404 | ||
405 | return value; | |
406 | } | |
407 | ||
95da310e | 408 | static int sierra_tiocmset(struct tty_struct *tty, struct file *file, |
033a3fb9 KL |
409 | unsigned int set, unsigned int clear) |
410 | { | |
95da310e | 411 | struct usb_serial_port *port = tty->driver_data; |
033a3fb9 KL |
412 | struct sierra_port_private *portdata; |
413 | ||
414 | portdata = usb_get_serial_port_data(port); | |
415 | ||
416 | if (set & TIOCM_RTS) | |
417 | portdata->rts_state = 1; | |
418 | if (set & TIOCM_DTR) | |
419 | portdata->dtr_state = 1; | |
420 | ||
421 | if (clear & TIOCM_RTS) | |
422 | portdata->rts_state = 0; | |
423 | if (clear & TIOCM_DTR) | |
424 | portdata->dtr_state = 0; | |
335f8514 | 425 | return sierra_send_setup(port); |
033a3fb9 KL |
426 | } |
427 | ||
b9a44bc1 EP |
428 | static void sierra_release_urb(struct urb *urb) |
429 | { | |
430 | struct usb_serial_port *port; | |
431 | if (urb) { | |
432 | port = urb->context; | |
433 | dev_dbg(&port->dev, "%s: %p\n", __func__, urb); | |
434 | kfree(urb->transfer_buffer); | |
435 | usb_free_urb(urb); | |
436 | } | |
437 | } | |
438 | ||
17c23274 GKH |
439 | static void sierra_outdat_callback(struct urb *urb) |
440 | { | |
441 | struct usb_serial_port *port = urb->context; | |
442 | struct sierra_port_private *portdata = usb_get_serial_port_data(port); | |
e6929a90 | 443 | struct sierra_intf_private *intfdata; |
17c23274 | 444 | int status = urb->status; |
17c23274 | 445 | |
5d44b361 | 446 | dev_dbg(&port->dev, "%s - port %d\n", __func__, port->number); |
e6929a90 | 447 | intfdata = port->serial->private; |
17c23274 GKH |
448 | |
449 | /* free up the transfer buffer, as usb_free_urb() does not do this */ | |
450 | kfree(urb->transfer_buffer); | |
e6929a90 | 451 | usb_autopm_put_interface_async(port->serial->interface); |
17c23274 | 452 | if (status) |
7384a922 | 453 | dev_dbg(&port->dev, "%s - nonzero write bulk status " |
5d44b361 | 454 | "received: %d\n", __func__, status); |
17c23274 | 455 | |
e6929a90 | 456 | spin_lock(&portdata->lock); |
17c23274 | 457 | --portdata->outstanding_urbs; |
e6929a90 ON |
458 | spin_unlock(&portdata->lock); |
459 | spin_lock(&intfdata->susp_lock); | |
460 | --intfdata->in_flight; | |
461 | spin_unlock(&intfdata->susp_lock); | |
17c23274 GKH |
462 | |
463 | usb_serial_port_softint(port); | |
464 | } | |
465 | ||
033a3fb9 | 466 | /* Write */ |
95da310e AC |
467 | static int sierra_write(struct tty_struct *tty, struct usb_serial_port *port, |
468 | const unsigned char *buf, int count) | |
033a3fb9 | 469 | { |
a45a1e07 | 470 | struct sierra_port_private *portdata; |
e6929a90 | 471 | struct sierra_intf_private *intfdata; |
17c23274 GKH |
472 | struct usb_serial *serial = port->serial; |
473 | unsigned long flags; | |
474 | unsigned char *buffer; | |
475 | struct urb *urb; | |
40d2ff32 EP |
476 | size_t writesize = min((size_t)count, (size_t)MAX_TRANSFER); |
477 | int retval = 0; | |
478 | ||
479 | /* verify that we actually have some data to write */ | |
480 | if (count == 0) | |
481 | return 0; | |
033a3fb9 KL |
482 | |
483 | portdata = usb_get_serial_port_data(port); | |
e6929a90 | 484 | intfdata = serial->private; |
033a3fb9 | 485 | |
0b10395a | 486 | dev_dbg(&port->dev, "%s: write (%zd bytes)\n", __func__, writesize); |
17c23274 | 487 | spin_lock_irqsave(&portdata->lock, flags); |
40d2ff32 EP |
488 | dev_dbg(&port->dev, "%s - outstanding_urbs: %d\n", __func__, |
489 | portdata->outstanding_urbs); | |
3a2b808e | 490 | if (portdata->outstanding_urbs > portdata->num_out_urbs) { |
17c23274 | 491 | spin_unlock_irqrestore(&portdata->lock, flags); |
7384a922 | 492 | dev_dbg(&port->dev, "%s - write limit hit\n", __func__); |
17c23274 GKH |
493 | return 0; |
494 | } | |
495 | portdata->outstanding_urbs++; | |
40d2ff32 EP |
496 | dev_dbg(&port->dev, "%s - 1, outstanding_urbs: %d\n", __func__, |
497 | portdata->outstanding_urbs); | |
17c23274 GKH |
498 | spin_unlock_irqrestore(&portdata->lock, flags); |
499 | ||
e6929a90 ON |
500 | retval = usb_autopm_get_interface_async(serial->interface); |
501 | if (retval < 0) { | |
502 | spin_lock_irqsave(&portdata->lock, flags); | |
503 | portdata->outstanding_urbs--; | |
504 | spin_unlock_irqrestore(&portdata->lock, flags); | |
505 | goto error_simple; | |
506 | } | |
507 | ||
40d2ff32 | 508 | buffer = kmalloc(writesize, GFP_ATOMIC); |
17c23274 GKH |
509 | if (!buffer) { |
510 | dev_err(&port->dev, "out of memory\n"); | |
40d2ff32 | 511 | retval = -ENOMEM; |
17c23274 GKH |
512 | goto error_no_buffer; |
513 | } | |
033a3fb9 | 514 | |
17c23274 GKH |
515 | urb = usb_alloc_urb(0, GFP_ATOMIC); |
516 | if (!urb) { | |
517 | dev_err(&port->dev, "no more free urbs\n"); | |
40d2ff32 | 518 | retval = -ENOMEM; |
17c23274 GKH |
519 | goto error_no_urb; |
520 | } | |
033a3fb9 | 521 | |
40d2ff32 | 522 | memcpy(buffer, buf, writesize); |
033a3fb9 | 523 | |
40d2ff32 | 524 | usb_serial_debug_data(debug, &port->dev, __func__, writesize, buffer); |
17c23274 GKH |
525 | |
526 | usb_fill_bulk_urb(urb, serial->dev, | |
527 | usb_sndbulkpipe(serial->dev, | |
528 | port->bulk_out_endpointAddress), | |
40d2ff32 | 529 | buffer, writesize, sierra_outdat_callback, port); |
17c23274 | 530 | |
238ebd13 EP |
531 | /* Handle the need to send a zero length packet */ |
532 | urb->transfer_flags |= URB_ZERO_PACKET; | |
533 | ||
e6929a90 ON |
534 | spin_lock_irqsave(&intfdata->susp_lock, flags); |
535 | ||
536 | if (intfdata->suspended) { | |
537 | usb_anchor_urb(urb, &portdata->delayed); | |
538 | spin_unlock_irqrestore(&intfdata->susp_lock, flags); | |
539 | goto skip_power; | |
540 | } else { | |
541 | usb_anchor_urb(urb, &portdata->active); | |
542 | } | |
17c23274 | 543 | /* send it down the pipe */ |
40d2ff32 EP |
544 | retval = usb_submit_urb(urb, GFP_ATOMIC); |
545 | if (retval) { | |
e6929a90 ON |
546 | usb_unanchor_urb(urb); |
547 | spin_unlock_irqrestore(&intfdata->susp_lock, flags); | |
17c23274 | 548 | dev_err(&port->dev, "%s - usb_submit_urb(write bulk) failed " |
40d2ff32 | 549 | "with status = %d\n", __func__, retval); |
17c23274 | 550 | goto error; |
e6929a90 ON |
551 | } else { |
552 | intfdata->in_flight++; | |
553 | spin_unlock_irqrestore(&intfdata->susp_lock, flags); | |
033a3fb9 KL |
554 | } |
555 | ||
e6929a90 | 556 | skip_power: |
17c23274 GKH |
557 | /* we are done with this urb, so let the host driver |
558 | * really free it when it is finished with it */ | |
559 | usb_free_urb(urb); | |
560 | ||
40d2ff32 | 561 | return writesize; |
17c23274 GKH |
562 | error: |
563 | usb_free_urb(urb); | |
564 | error_no_urb: | |
565 | kfree(buffer); | |
566 | error_no_buffer: | |
567 | spin_lock_irqsave(&portdata->lock, flags); | |
568 | --portdata->outstanding_urbs; | |
40d2ff32 EP |
569 | dev_dbg(&port->dev, "%s - 2. outstanding_urbs: %d\n", __func__, |
570 | portdata->outstanding_urbs); | |
17c23274 | 571 | spin_unlock_irqrestore(&portdata->lock, flags); |
e6929a90 ON |
572 | usb_autopm_put_interface_async(serial->interface); |
573 | error_simple: | |
40d2ff32 | 574 | return retval; |
033a3fb9 KL |
575 | } |
576 | ||
577 | static void sierra_indat_callback(struct urb *urb) | |
578 | { | |
579 | int err; | |
580 | int endpoint; | |
581 | struct usb_serial_port *port; | |
582 | struct tty_struct *tty; | |
583 | unsigned char *data = urb->transfer_buffer; | |
17dd2215 | 584 | int status = urb->status; |
033a3fb9 | 585 | |
033a3fb9 | 586 | endpoint = usb_pipeendpoint(urb->pipe); |
b0cda8c5 EP |
587 | port = urb->context; |
588 | ||
589 | dev_dbg(&port->dev, "%s: %p\n", __func__, urb); | |
033a3fb9 | 590 | |
17dd2215 | 591 | if (status) { |
7384a922 | 592 | dev_dbg(&port->dev, "%s: nonzero status: %d on" |
5d44b361 | 593 | " endpoint %02x\n", __func__, status, endpoint); |
033a3fb9 | 594 | } else { |
033a3fb9 | 595 | if (urb->actual_length) { |
d95186d1 | 596 | tty = tty_port_tty_get(&port->port); |
b87c6e86 | 597 | if (tty) { |
b87c6e86 EP |
598 | tty_insert_flip_string(tty, data, |
599 | urb->actual_length); | |
600 | tty_flip_buffer_push(tty); | |
601 | ||
602 | tty_kref_put(tty); | |
603 | usb_serial_debug_data(debug, &port->dev, | |
604 | __func__, urb->actual_length, data); | |
605 | } | |
b0cda8c5 | 606 | } else { |
7384a922 | 607 | dev_dbg(&port->dev, "%s: empty read urb" |
5d44b361 | 608 | " received\n", __func__); |
033a3fb9 KL |
609 | } |
610 | } | |
b0cda8c5 EP |
611 | |
612 | /* Resubmit urb so we continue receiving */ | |
1f87158e | 613 | if (status != -ESHUTDOWN && status != -EPERM) { |
e6929a90 | 614 | usb_mark_last_busy(port->serial->dev); |
b0cda8c5 | 615 | err = usb_submit_urb(urb, GFP_ATOMIC); |
1f87158e | 616 | if (err && err != -EPERM) |
b0cda8c5 EP |
617 | dev_err(&port->dev, "resubmit read urb failed." |
618 | "(%d)\n", err); | |
619 | } | |
620 | ||
033a3fb9 KL |
621 | return; |
622 | } | |
623 | ||
033a3fb9 KL |
624 | static void sierra_instat_callback(struct urb *urb) |
625 | { | |
626 | int err; | |
17dd2215 | 627 | int status = urb->status; |
cdc97792 | 628 | struct usb_serial_port *port = urb->context; |
033a3fb9 KL |
629 | struct sierra_port_private *portdata = usb_get_serial_port_data(port); |
630 | struct usb_serial *serial = port->serial; | |
631 | ||
5d44b361 | 632 | dev_dbg(&port->dev, "%s: urb %p port %p has data %p\n", __func__, |
7384a922 | 633 | urb, port, portdata); |
033a3fb9 | 634 | |
17dd2215 | 635 | if (status == 0) { |
033a3fb9 KL |
636 | struct usb_ctrlrequest *req_pkt = |
637 | (struct usb_ctrlrequest *)urb->transfer_buffer; | |
638 | ||
639 | if (!req_pkt) { | |
7384a922 KL |
640 | dev_dbg(&port->dev, "%s: NULL req_pkt\n", |
641 | __func__); | |
033a3fb9 KL |
642 | return; |
643 | } | |
644 | if ((req_pkt->bRequestType == 0xA1) && | |
645 | (req_pkt->bRequest == 0x20)) { | |
646 | int old_dcd_state; | |
647 | unsigned char signals = *((unsigned char *) | |
648 | urb->transfer_buffer + | |
649 | sizeof(struct usb_ctrlrequest)); | |
4a90f09b | 650 | struct tty_struct *tty; |
033a3fb9 | 651 | |
5d44b361 | 652 | dev_dbg(&port->dev, "%s: signal x%x\n", __func__, |
7384a922 | 653 | signals); |
033a3fb9 KL |
654 | |
655 | old_dcd_state = portdata->dcd_state; | |
656 | portdata->cts_state = 1; | |
657 | portdata->dcd_state = ((signals & 0x01) ? 1 : 0); | |
658 | portdata->dsr_state = ((signals & 0x02) ? 1 : 0); | |
659 | portdata->ri_state = ((signals & 0x08) ? 1 : 0); | |
660 | ||
4a90f09b AC |
661 | tty = tty_port_tty_get(&port->port); |
662 | if (tty && !C_CLOCAL(tty) && | |
033a3fb9 | 663 | old_dcd_state && !portdata->dcd_state) |
4a90f09b AC |
664 | tty_hangup(tty); |
665 | tty_kref_put(tty); | |
033a3fb9 | 666 | } else { |
5d44b361 | 667 | dev_dbg(&port->dev, "%s: type %x req %x\n", |
7384a922 KL |
668 | __func__, req_pkt->bRequestType, |
669 | req_pkt->bRequest); | |
033a3fb9 KL |
670 | } |
671 | } else | |
5d44b361 | 672 | dev_dbg(&port->dev, "%s: error %d\n", __func__, status); |
033a3fb9 KL |
673 | |
674 | /* Resubmit urb so we continue receiving IRQ data */ | |
1f87158e | 675 | if (status != -ESHUTDOWN && status != -ENOENT) { |
e6929a90 | 676 | usb_mark_last_busy(serial->dev); |
033a3fb9 KL |
677 | urb->dev = serial->dev; |
678 | err = usb_submit_urb(urb, GFP_ATOMIC); | |
1f87158e | 679 | if (err && err != -EPERM) |
c76a23da EP |
680 | dev_err(&port->dev, "%s: resubmit intr urb " |
681 | "failed. (%d)\n", __func__, err); | |
033a3fb9 KL |
682 | } |
683 | } | |
684 | ||
95da310e | 685 | static int sierra_write_room(struct tty_struct *tty) |
033a3fb9 | 686 | { |
95da310e | 687 | struct usb_serial_port *port = tty->driver_data; |
17c23274 GKH |
688 | struct sierra_port_private *portdata = usb_get_serial_port_data(port); |
689 | unsigned long flags; | |
033a3fb9 | 690 | |
5d44b361 | 691 | dev_dbg(&port->dev, "%s - port %d\n", __func__, port->number); |
033a3fb9 | 692 | |
17c23274 GKH |
693 | /* try to give a good number back based on if we have any free urbs at |
694 | * this point in time */ | |
695 | spin_lock_irqsave(&portdata->lock, flags); | |
3a2b808e | 696 | if (portdata->outstanding_urbs > (portdata->num_out_urbs * 2) / 3) { |
17c23274 | 697 | spin_unlock_irqrestore(&portdata->lock, flags); |
7384a922 | 698 | dev_dbg(&port->dev, "%s - write limit hit\n", __func__); |
17c23274 | 699 | return 0; |
033a3fb9 | 700 | } |
17c23274 | 701 | spin_unlock_irqrestore(&portdata->lock, flags); |
033a3fb9 | 702 | |
17c23274 | 703 | return 2048; |
033a3fb9 KL |
704 | } |
705 | ||
b9a44bc1 | 706 | static void sierra_stop_rx_urbs(struct usb_serial_port *port) |
033a3fb9 | 707 | { |
9e85c5f6 | 708 | int i; |
b9a44bc1 | 709 | struct sierra_port_private *portdata = usb_get_serial_port_data(port); |
033a3fb9 | 710 | |
3a2b808e | 711 | for (i = 0; i < portdata->num_in_urbs; i++) |
b9a44bc1 | 712 | usb_kill_urb(portdata->in_urbs[i]); |
033a3fb9 | 713 | |
b9a44bc1 EP |
714 | usb_kill_urb(port->interrupt_in_urb); |
715 | } | |
033a3fb9 | 716 | |
b9a44bc1 EP |
717 | static int sierra_submit_rx_urbs(struct usb_serial_port *port, gfp_t mem_flags) |
718 | { | |
719 | int ok_cnt; | |
720 | int err = -EINVAL; | |
721 | int i; | |
722 | struct urb *urb; | |
723 | struct sierra_port_private *portdata = usb_get_serial_port_data(port); | |
033a3fb9 | 724 | |
b9a44bc1 | 725 | ok_cnt = 0; |
3a2b808e | 726 | for (i = 0; i < portdata->num_in_urbs; i++) { |
033a3fb9 | 727 | urb = portdata->in_urbs[i]; |
9e85c5f6 | 728 | if (!urb) |
033a3fb9 | 729 | continue; |
b9a44bc1 EP |
730 | err = usb_submit_urb(urb, mem_flags); |
731 | if (err) { | |
732 | dev_err(&port->dev, "%s: submit urb failed: %d\n", | |
733 | __func__, err); | |
734 | } else { | |
735 | ok_cnt++; | |
033a3fb9 | 736 | } |
b9a44bc1 | 737 | } |
033a3fb9 | 738 | |
b9a44bc1 EP |
739 | if (ok_cnt && port->interrupt_in_urb) { |
740 | err = usb_submit_urb(port->interrupt_in_urb, mem_flags); | |
741 | if (err) { | |
742 | dev_err(&port->dev, "%s: submit intr urb failed: %d\n", | |
743 | __func__, err); | |
033a3fb9 KL |
744 | } |
745 | } | |
746 | ||
b9a44bc1 EP |
747 | if (ok_cnt > 0) /* at least one rx urb submitted */ |
748 | return 0; | |
749 | else | |
750 | return err; | |
751 | } | |
752 | ||
753 | static struct urb *sierra_setup_urb(struct usb_serial *serial, int endpoint, | |
754 | int dir, void *ctx, int len, | |
755 | gfp_t mem_flags, | |
756 | usb_complete_t callback) | |
757 | { | |
758 | struct urb *urb; | |
759 | u8 *buf; | |
760 | ||
761 | if (endpoint == -1) | |
762 | return NULL; | |
033a3fb9 | 763 | |
b9a44bc1 EP |
764 | urb = usb_alloc_urb(0, mem_flags); |
765 | if (urb == NULL) { | |
766 | dev_dbg(&serial->dev->dev, "%s: alloc for endpoint %d failed\n", | |
767 | __func__, endpoint); | |
768 | return NULL; | |
9e85c5f6 | 769 | } |
b9a44bc1 EP |
770 | |
771 | buf = kmalloc(len, mem_flags); | |
772 | if (buf) { | |
773 | /* Fill URB using supplied data */ | |
774 | usb_fill_bulk_urb(urb, serial->dev, | |
775 | usb_sndbulkpipe(serial->dev, endpoint) | dir, | |
776 | buf, len, callback, ctx); | |
777 | ||
778 | /* debug */ | |
779 | dev_dbg(&serial->dev->dev, "%s %c u : %p d:%p\n", __func__, | |
780 | dir == USB_DIR_IN ? 'i' : 'o', urb, buf); | |
781 | } else { | |
782 | dev_dbg(&serial->dev->dev, "%s %c u:%p d:%p\n", __func__, | |
783 | dir == USB_DIR_IN ? 'i' : 'o', urb, buf); | |
784 | ||
785 | sierra_release_urb(urb); | |
786 | urb = NULL; | |
787 | } | |
788 | ||
789 | return urb; | |
033a3fb9 KL |
790 | } |
791 | ||
b9a44bc1 | 792 | static void sierra_close(struct usb_serial_port *port) |
033a3fb9 | 793 | { |
b9a44bc1 | 794 | int i; |
033a3fb9 KL |
795 | struct usb_serial *serial = port->serial; |
796 | struct sierra_port_private *portdata; | |
e6929a90 ON |
797 | struct sierra_intf_private *intfdata = port->serial->private; |
798 | ||
033a3fb9 | 799 | |
b9a44bc1 | 800 | dev_dbg(&port->dev, "%s\n", __func__); |
033a3fb9 | 801 | portdata = usb_get_serial_port_data(port); |
b9a44bc1 EP |
802 | |
803 | portdata->rts_state = 0; | |
804 | portdata->dtr_state = 0; | |
033a3fb9 KL |
805 | |
806 | if (serial->dev) { | |
e33fe4d8 | 807 | mutex_lock(&serial->disc_mutex); |
b64dc0a5 EP |
808 | if (!serial->disconnected) { |
809 | serial->interface->needs_remote_wakeup = 0; | |
810 | usb_autopm_get_interface(serial->interface); | |
335f8514 | 811 | sierra_send_setup(port); |
b64dc0a5 | 812 | } |
e33fe4d8 | 813 | mutex_unlock(&serial->disc_mutex); |
e6929a90 ON |
814 | spin_lock_irq(&intfdata->susp_lock); |
815 | portdata->opened = 0; | |
816 | spin_unlock_irq(&intfdata->susp_lock); | |
817 | ||
b9a44bc1 EP |
818 | |
819 | /* Stop reading urbs */ | |
820 | sierra_stop_rx_urbs(port); | |
821 | /* .. and release them */ | |
3a2b808e | 822 | for (i = 0; i < portdata->num_in_urbs; i++) { |
b9a44bc1 EP |
823 | sierra_release_urb(portdata->in_urbs[i]); |
824 | portdata->in_urbs[i] = NULL; | |
825 | } | |
335f8514 AC |
826 | } |
827 | } | |
828 | ||
a509a7e4 | 829 | static int sierra_open(struct tty_struct *tty, struct usb_serial_port *port) |
335f8514 | 830 | { |
b9a44bc1 EP |
831 | struct sierra_port_private *portdata; |
832 | struct usb_serial *serial = port->serial; | |
e6929a90 | 833 | struct sierra_intf_private *intfdata = serial->private; |
335f8514 | 834 | int i; |
b9a44bc1 EP |
835 | int err; |
836 | int endpoint; | |
837 | struct urb *urb; | |
838 | ||
839 | portdata = usb_get_serial_port_data(port); | |
840 | ||
5d44b361 | 841 | dev_dbg(&port->dev, "%s\n", __func__); |
b9a44bc1 EP |
842 | |
843 | /* Set some sane defaults */ | |
844 | portdata->rts_state = 1; | |
845 | portdata->dtr_state = 1; | |
846 | ||
847 | ||
848 | endpoint = port->bulk_in_endpointAddress; | |
3a2b808e | 849 | for (i = 0; i < portdata->num_in_urbs; i++) { |
b9a44bc1 EP |
850 | urb = sierra_setup_urb(serial, endpoint, USB_DIR_IN, port, |
851 | IN_BUFLEN, GFP_KERNEL, | |
852 | sierra_indat_callback); | |
853 | portdata->in_urbs[i] = urb; | |
854 | } | |
855 | /* clear halt condition */ | |
856 | usb_clear_halt(serial->dev, | |
857 | usb_sndbulkpipe(serial->dev, endpoint) | USB_DIR_IN); | |
858 | ||
859 | err = sierra_submit_rx_urbs(port, GFP_KERNEL); | |
860 | if (err) { | |
861 | /* get rid of everything as in close */ | |
862 | sierra_close(port); | |
b64dc0a5 EP |
863 | /* restore balance for autopm */ |
864 | usb_autopm_put_interface(serial->interface); | |
b9a44bc1 EP |
865 | return err; |
866 | } | |
867 | sierra_send_setup(port); | |
868 | ||
e6929a90 ON |
869 | serial->interface->needs_remote_wakeup = 1; |
870 | spin_lock_irq(&intfdata->susp_lock); | |
871 | portdata->opened = 1; | |
872 | spin_unlock_irq(&intfdata->susp_lock); | |
873 | usb_autopm_put_interface(serial->interface); | |
874 | ||
b9a44bc1 EP |
875 | return 0; |
876 | } | |
877 | ||
878 | ||
879 | static void sierra_dtr_rts(struct usb_serial_port *port, int on) | |
880 | { | |
335f8514 AC |
881 | struct usb_serial *serial = port->serial; |
882 | struct sierra_port_private *portdata; | |
033a3fb9 | 883 | |
335f8514 | 884 | portdata = usb_get_serial_port_data(port); |
b9a44bc1 EP |
885 | portdata->rts_state = on; |
886 | portdata->dtr_state = on; | |
335f8514 AC |
887 | |
888 | if (serial->dev) { | |
b9a44bc1 EP |
889 | mutex_lock(&serial->disc_mutex); |
890 | if (!serial->disconnected) | |
891 | sierra_send_setup(port); | |
892 | mutex_unlock(&serial->disc_mutex); | |
033a3fb9 | 893 | } |
033a3fb9 KL |
894 | } |
895 | ||
033a3fb9 KL |
896 | static int sierra_startup(struct usb_serial *serial) |
897 | { | |
033a3fb9 KL |
898 | struct usb_serial_port *port; |
899 | struct sierra_port_private *portdata; | |
3a2b808e | 900 | struct sierra_iface_info *himemoryp = NULL; |
9e85c5f6 | 901 | int i; |
3a2b808e | 902 | u8 ifnum; |
033a3fb9 | 903 | |
5d44b361 | 904 | dev_dbg(&serial->dev->dev, "%s\n", __func__); |
033a3fb9 | 905 | |
228426ed | 906 | /* Set Device mode to D0 */ |
112225b1 KL |
907 | sierra_set_power_state(serial->dev, 0x0000); |
908 | ||
228426ed KL |
909 | /* Check NMEA and set */ |
910 | if (nmea) | |
911 | sierra_vsc_set_nmea(serial->dev, 1); | |
912 | ||
033a3fb9 KL |
913 | /* Now setup per port private data */ |
914 | for (i = 0; i < serial->num_ports; i++) { | |
915 | port = serial->port[i]; | |
916 | portdata = kzalloc(sizeof(*portdata), GFP_KERNEL); | |
917 | if (!portdata) { | |
7384a922 | 918 | dev_dbg(&port->dev, "%s: kmalloc for " |
3a2b808e | 919 | "sierra_port_private (%d) failed!\n", |
7384a922 | 920 | __func__, i); |
17c23274 | 921 | return -ENOMEM; |
033a3fb9 | 922 | } |
17c23274 | 923 | spin_lock_init(&portdata->lock); |
e6929a90 ON |
924 | init_usb_anchor(&portdata->active); |
925 | init_usb_anchor(&portdata->delayed); | |
3a2b808e EP |
926 | ifnum = i; |
927 | /* Assume low memory requirements */ | |
928 | portdata->num_out_urbs = N_OUT_URB; | |
929 | portdata->num_in_urbs = N_IN_URB; | |
930 | ||
931 | /* Determine actual memory requirements */ | |
932 | if (serial->num_ports == 1) { | |
933 | /* Get interface number for composite device */ | |
934 | ifnum = sierra_calc_interface(serial); | |
935 | himemoryp = | |
936 | (struct sierra_iface_info *)&typeB_interface_list; | |
937 | if (is_himemory(ifnum, himemoryp)) { | |
938 | portdata->num_out_urbs = N_OUT_URB_HM; | |
939 | portdata->num_in_urbs = N_IN_URB_HM; | |
940 | } | |
941 | } | |
942 | else { | |
943 | himemoryp = | |
944 | (struct sierra_iface_info *)&typeA_interface_list; | |
945 | if (is_himemory(i, himemoryp)) { | |
946 | portdata->num_out_urbs = N_OUT_URB_HM; | |
947 | portdata->num_in_urbs = N_IN_URB_HM; | |
948 | } | |
949 | } | |
950 | dev_dbg(&serial->dev->dev, | |
951 | "Memory usage (urbs) interface #%d, in=%d, out=%d\n", | |
952 | ifnum,portdata->num_in_urbs, portdata->num_out_urbs ); | |
b9a44bc1 | 953 | /* Set the port private data pointer */ |
033a3fb9 | 954 | usb_set_serial_port_data(port, portdata); |
033a3fb9 KL |
955 | } |
956 | ||
17c23274 | 957 | return 0; |
033a3fb9 KL |
958 | } |
959 | ||
7bae0a07 | 960 | static void sierra_release(struct usb_serial *serial) |
033a3fb9 | 961 | { |
b9a44bc1 | 962 | int i; |
033a3fb9 KL |
963 | struct usb_serial_port *port; |
964 | struct sierra_port_private *portdata; | |
965 | ||
5d44b361 | 966 | dev_dbg(&serial->dev->dev, "%s\n", __func__); |
033a3fb9 | 967 | |
033a3fb9 KL |
968 | for (i = 0; i < serial->num_ports; ++i) { |
969 | port = serial->port[i]; | |
f094e4f3 GKH |
970 | if (!port) |
971 | continue; | |
033a3fb9 | 972 | portdata = usb_get_serial_port_data(port); |
f094e4f3 GKH |
973 | if (!portdata) |
974 | continue; | |
9e85c5f6 | 975 | kfree(portdata); |
033a3fb9 KL |
976 | } |
977 | } | |
978 | ||
cd604513 | 979 | #ifdef CONFIG_PM |
e6929a90 ON |
980 | static void stop_read_write_urbs(struct usb_serial *serial) |
981 | { | |
b64dc0a5 | 982 | int i; |
e6929a90 ON |
983 | struct usb_serial_port *port; |
984 | struct sierra_port_private *portdata; | |
985 | ||
986 | /* Stop reading/writing urbs */ | |
987 | for (i = 0; i < serial->num_ports; ++i) { | |
988 | port = serial->port[i]; | |
989 | portdata = usb_get_serial_port_data(port); | |
b64dc0a5 | 990 | sierra_stop_rx_urbs(port); |
e6929a90 ON |
991 | usb_kill_anchored_urbs(&portdata->active); |
992 | } | |
993 | } | |
994 | ||
995 | static int sierra_suspend(struct usb_serial *serial, pm_message_t message) | |
996 | { | |
997 | struct sierra_intf_private *intfdata; | |
998 | int b; | |
999 | ||
fb34d537 | 1000 | if (message.event & PM_EVENT_AUTO) { |
e6929a90 ON |
1001 | intfdata = serial->private; |
1002 | spin_lock_irq(&intfdata->susp_lock); | |
1003 | b = intfdata->in_flight; | |
1004 | ||
1005 | if (b) { | |
1006 | spin_unlock_irq(&intfdata->susp_lock); | |
1007 | return -EBUSY; | |
1008 | } else { | |
1009 | intfdata->suspended = 1; | |
1010 | spin_unlock_irq(&intfdata->susp_lock); | |
1011 | } | |
1012 | } | |
1013 | stop_read_write_urbs(serial); | |
1014 | ||
1015 | return 0; | |
1016 | } | |
1017 | ||
1018 | static int sierra_resume(struct usb_serial *serial) | |
1019 | { | |
1020 | struct usb_serial_port *port; | |
1021 | struct sierra_intf_private *intfdata = serial->private; | |
1022 | struct sierra_port_private *portdata; | |
1023 | struct urb *urb; | |
1024 | int ec = 0; | |
1025 | int i, err; | |
1026 | ||
1027 | spin_lock_irq(&intfdata->susp_lock); | |
1028 | for (i = 0; i < serial->num_ports; i++) { | |
1029 | port = serial->port[i]; | |
1030 | portdata = usb_get_serial_port_data(port); | |
1031 | ||
1032 | while ((urb = usb_get_from_anchor(&portdata->delayed))) { | |
1033 | usb_anchor_urb(urb, &portdata->active); | |
1034 | intfdata->in_flight++; | |
1035 | err = usb_submit_urb(urb, GFP_ATOMIC); | |
1036 | if (err < 0) { | |
1037 | intfdata->in_flight--; | |
1038 | usb_unanchor_urb(urb); | |
1039 | usb_scuttle_anchored_urbs(&portdata->delayed); | |
1040 | break; | |
1041 | } | |
1042 | } | |
1043 | ||
1044 | if (portdata->opened) { | |
1045 | err = sierra_submit_rx_urbs(port, GFP_ATOMIC); | |
1046 | if (err) | |
1047 | ec++; | |
1048 | } | |
1049 | } | |
1050 | intfdata->suspended = 0; | |
1051 | spin_unlock_irq(&intfdata->susp_lock); | |
1052 | ||
1053 | return ec ? -EIO : 0; | |
1054 | } | |
7650cd96 EP |
1055 | |
1056 | static int sierra_reset_resume(struct usb_interface *intf) | |
1057 | { | |
1058 | struct usb_serial *serial = usb_get_intfdata(intf); | |
1059 | dev_err(&serial->dev->dev, "%s\n", __func__); | |
1060 | return usb_serial_resume(intf); | |
1061 | } | |
cd604513 AM |
1062 | #else |
1063 | #define sierra_suspend NULL | |
1064 | #define sierra_resume NULL | |
7650cd96 | 1065 | #define sierra_reset_resume NULL |
cd604513 | 1066 | #endif |
e6929a90 | 1067 | |
7650cd96 EP |
1068 | static struct usb_driver sierra_driver = { |
1069 | .name = "sierra", | |
1070 | .probe = usb_serial_probe, | |
1071 | .disconnect = usb_serial_disconnect, | |
1072 | .suspend = usb_serial_suspend, | |
1073 | .resume = usb_serial_resume, | |
1074 | .reset_resume = sierra_reset_resume, | |
1075 | .id_table = id_table, | |
1076 | .no_dynamic_id = 1, | |
1077 | .supports_autosuspend = 1, | |
1078 | }; | |
1079 | ||
228426ed | 1080 | static struct usb_serial_driver sierra_device = { |
964ee1de GKH |
1081 | .driver = { |
1082 | .owner = THIS_MODULE, | |
4e0fee82 | 1083 | .name = "sierra", |
964ee1de | 1084 | }, |
228426ed KL |
1085 | .description = "Sierra USB modem", |
1086 | .id_table = id_table, | |
d9b1b787 | 1087 | .usb_driver = &sierra_driver, |
228426ed KL |
1088 | .calc_num_ports = sierra_calc_num_ports, |
1089 | .probe = sierra_probe, | |
964ee1de GKH |
1090 | .open = sierra_open, |
1091 | .close = sierra_close, | |
335f8514 | 1092 | .dtr_rts = sierra_dtr_rts, |
964ee1de GKH |
1093 | .write = sierra_write, |
1094 | .write_room = sierra_write_room, | |
964ee1de | 1095 | .set_termios = sierra_set_termios, |
964ee1de GKH |
1096 | .tiocmget = sierra_tiocmget, |
1097 | .tiocmset = sierra_tiocmset, | |
1098 | .attach = sierra_startup, | |
7bae0a07 | 1099 | .release = sierra_release, |
e6929a90 ON |
1100 | .suspend = sierra_suspend, |
1101 | .resume = sierra_resume, | |
964ee1de GKH |
1102 | .read_int_callback = sierra_instat_callback, |
1103 | }; | |
1104 | ||
1105 | /* Functions used by new usb-serial code. */ | |
1106 | static int __init sierra_init(void) | |
1107 | { | |
1108 | int retval; | |
228426ed | 1109 | retval = usb_serial_register(&sierra_device); |
964ee1de | 1110 | if (retval) |
228426ed | 1111 | goto failed_device_register; |
964ee1de GKH |
1112 | |
1113 | ||
1114 | retval = usb_register(&sierra_driver); | |
1115 | if (retval) | |
1116 | goto failed_driver_register; | |
1117 | ||
c197a8db GKH |
1118 | printk(KERN_INFO KBUILD_MODNAME ": " DRIVER_VERSION ":" |
1119 | DRIVER_DESC "\n"); | |
964ee1de GKH |
1120 | |
1121 | return 0; | |
1122 | ||
1123 | failed_driver_register: | |
228426ed KL |
1124 | usb_serial_deregister(&sierra_device); |
1125 | failed_device_register: | |
964ee1de GKH |
1126 | return retval; |
1127 | } | |
1128 | ||
1129 | static void __exit sierra_exit(void) | |
1130 | { | |
9660ea36 | 1131 | usb_deregister(&sierra_driver); |
228426ed | 1132 | usb_serial_deregister(&sierra_device); |
964ee1de GKH |
1133 | } |
1134 | ||
1135 | module_init(sierra_init); | |
1136 | module_exit(sierra_exit); | |
1137 | ||
033a3fb9 KL |
1138 | MODULE_AUTHOR(DRIVER_AUTHOR); |
1139 | MODULE_DESCRIPTION(DRIVER_DESC); | |
1140 | MODULE_VERSION(DRIVER_VERSION); | |
69de51fd | 1141 | MODULE_LICENSE("GPL"); |
033a3fb9 | 1142 | |
4e0fee82 | 1143 | module_param(nmea, bool, S_IRUGO | S_IWUSR); |
228426ed KL |
1144 | MODULE_PARM_DESC(nmea, "NMEA streaming"); |
1145 | ||
033a3fb9 KL |
1146 | module_param(debug, bool, S_IRUGO | S_IWUSR); |
1147 | MODULE_PARM_DESC(debug, "Debug messages"); |