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 */ | |
bcbec053 | 21 | |
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> |
5a0e3ad6 | 29 | #include <linux/slab.h> |
033a3fb9 | 30 | #include <linux/tty_flip.h> |
69de51fd KL |
31 | #include <linux/module.h> |
32 | #include <linux/usb.h> | |
a969888c | 33 | #include <linux/usb/serial.h> |
69de51fd | 34 | |
228426ed KL |
35 | #define SWIMS_USB_REQUEST_SetPower 0x00 |
36 | #define SWIMS_USB_REQUEST_SetNmea 0x07 | |
112225b1 | 37 | |
3a2b808e EP |
38 | #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 | |
112225b1 KL |
42 | #define IN_BUFLEN 4096 |
43 | ||
40d2ff32 EP |
44 | #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 | ||
90ab5ee9 | 49 | static bool 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 | 64 | { |
64318a52 | 65 | return usb_control_msg(udev, usb_sndctrlpipe(udev, 0), |
228426ed | 66 | SWIMS_USB_REQUEST_SetPower, /* __u8 request */ |
f3564de4 | 67 | USB_TYPE_VENDOR, /* __u8 request type */ |
228426ed KL |
68 | swiState, /* __u16 value */ |
69 | 0, /* __u16 index */ | |
70 | NULL, /* void *data */ | |
71 | 0, /* __u16 size */ | |
72 | USB_CTRL_SET_TIMEOUT); /* int timeout */ | |
112225b1 KL |
73 | } |
74 | ||
228426ed | 75 | static int sierra_vsc_set_nmea(struct usb_device *udev, __u16 enable) |
112225b1 | 76 | { |
64318a52 | 77 | return usb_control_msg(udev, usb_sndctrlpipe(udev, 0), |
228426ed | 78 | SWIMS_USB_REQUEST_SetNmea, /* __u8 request */ |
f3564de4 | 79 | USB_TYPE_VENDOR, /* __u8 request type */ |
228426ed KL |
80 | enable, /* __u16 value */ |
81 | 0x0000, /* __u16 index */ | |
82 | NULL, /* void *data */ | |
83 | 0, /* __u16 size */ | |
84 | USB_CTRL_SET_TIMEOUT); /* int timeout */ | |
228426ed KL |
85 | } |
86 | ||
87 | static int sierra_calc_num_ports(struct usb_serial *serial) | |
88 | { | |
9636b683 EP |
89 | int num_ports = 0; |
90 | u8 ifnum, numendpoints; | |
228426ed | 91 | |
9636b683 EP |
92 | ifnum = serial->interface->cur_altsetting->desc.bInterfaceNumber; |
93 | numendpoints = serial->interface->cur_altsetting->desc.bNumEndpoints; | |
228426ed | 94 | |
9636b683 EP |
95 | /* Dummy interface present on some SKUs should be ignored */ |
96 | if (ifnum == 0x99) | |
97 | num_ports = 0; | |
98 | else if (numendpoints <= 3) | |
99 | num_ports = 1; | |
100 | else | |
101 | num_ports = (numendpoints-1)/2; | |
102 | return num_ports; | |
228426ed KL |
103 | } |
104 | ||
4db2299d EP |
105 | static int is_blacklisted(const u8 ifnum, |
106 | const struct sierra_iface_info *blacklist) | |
107 | { | |
108 | const u8 *info; | |
109 | int i; | |
110 | ||
111 | if (blacklist) { | |
112 | info = blacklist->ifaceinfo; | |
113 | ||
114 | for (i = 0; i < blacklist->infolen; i++) { | |
115 | if (info[i] == ifnum) | |
116 | return 1; | |
117 | } | |
118 | } | |
119 | return 0; | |
120 | } | |
121 | ||
3a2b808e EP |
122 | static int is_himemory(const u8 ifnum, |
123 | const struct sierra_iface_info *himemorylist) | |
124 | { | |
125 | const u8 *info; | |
126 | int i; | |
127 | ||
128 | if (himemorylist) { | |
129 | info = himemorylist->ifaceinfo; | |
130 | ||
131 | for (i=0; i < himemorylist->infolen; i++) { | |
132 | if (info[i] == ifnum) | |
133 | return 1; | |
134 | } | |
135 | } | |
136 | return 0; | |
137 | } | |
138 | ||
7106967e KL |
139 | static int sierra_calc_interface(struct usb_serial *serial) |
140 | { | |
4e0fee82 KL |
141 | int interface; |
142 | struct usb_interface *p_interface; | |
143 | struct usb_host_interface *p_host_interface; | |
7106967e | 144 | |
4e0fee82 KL |
145 | /* Get the interface structure pointer from the serial struct */ |
146 | p_interface = serial->interface; | |
7106967e | 147 | |
4e0fee82 KL |
148 | /* Get a pointer to the host interface structure */ |
149 | p_host_interface = p_interface->cur_altsetting; | |
7106967e | 150 | |
4e0fee82 KL |
151 | /* read the interface descriptor for this active altsetting |
152 | * to find out the interface number we are on | |
153 | */ | |
154 | interface = p_host_interface->desc.bInterfaceNumber; | |
7106967e | 155 | |
4e0fee82 | 156 | return interface; |
7106967e KL |
157 | } |
158 | ||
228426ed KL |
159 | static int sierra_probe(struct usb_serial *serial, |
160 | const struct usb_device_id *id) | |
161 | { | |
162 | int result = 0; | |
112225b1 | 163 | struct usb_device *udev; |
228426ed | 164 | u8 ifnum; |
112225b1 | 165 | |
228426ed | 166 | udev = serial->dev; |
e3173b22 | 167 | ifnum = sierra_calc_interface(serial); |
64318a52 | 168 | |
e3173b22 KL |
169 | /* |
170 | * If this interface supports more than 1 alternate | |
171 | * select the 2nd one | |
172 | */ | |
173 | if (serial->interface->num_altsetting == 2) { | |
174 | dev_dbg(&udev->dev, "Selecting alt setting for interface %d\n", | |
175 | ifnum); | |
176 | /* We know the alternate setting is 1 for the MC8785 */ | |
177 | usb_set_interface(udev, ifnum, 1); | |
178 | } | |
7106967e | 179 | |
4db2299d EP |
180 | /* ifnum could have changed - by calling usb_set_interface */ |
181 | ifnum = sierra_calc_interface(serial); | |
182 | ||
183 | if (is_blacklisted(ifnum, | |
184 | (struct sierra_iface_info *)id->driver_info)) { | |
185 | dev_dbg(&serial->dev->dev, | |
186 | "Ignoring blacklisted interface #%d\n", ifnum); | |
187 | return -ENODEV; | |
188 | } | |
189 | ||
228426ed | 190 | return result; |
112225b1 | 191 | } |
033a3fb9 | 192 | |
3a2b808e EP |
193 | /* interfaces with higher memory requirements */ |
194 | static const u8 hi_memory_typeA_ifaces[] = { 0, 2 }; | |
195 | static const struct sierra_iface_info typeA_interface_list = { | |
196 | .infolen = ARRAY_SIZE(hi_memory_typeA_ifaces), | |
197 | .ifaceinfo = hi_memory_typeA_ifaces, | |
198 | }; | |
199 | ||
200 | static const u8 hi_memory_typeB_ifaces[] = { 3, 4, 5, 6 }; | |
201 | static const struct sierra_iface_info typeB_interface_list = { | |
202 | .infolen = ARRAY_SIZE(hi_memory_typeB_ifaces), | |
203 | .ifaceinfo = hi_memory_typeB_ifaces, | |
204 | }; | |
205 | ||
206 | /* 'blacklist' of interfaces not served by this driver */ | |
749541d1 | 207 | static const u8 direct_ip_non_serial_ifaces[] = { 7, 8, 9, 10, 11, 19, 20 }; |
4db2299d EP |
208 | static const struct sierra_iface_info direct_ip_interface_blacklist = { |
209 | .infolen = ARRAY_SIZE(direct_ip_non_serial_ifaces), | |
210 | .ifaceinfo = direct_ip_non_serial_ifaces, | |
211 | }; | |
212 | ||
7d40d7e8 | 213 | static const struct usb_device_id id_table[] = { |
c5f3d87d EP |
214 | { USB_DEVICE(0x0F3D, 0x0112) }, /* Airprime/Sierra PC 5220 */ |
215 | { USB_DEVICE(0x03F0, 0x1B1D) }, /* HP ev2200 a.k.a MC5720 */ | |
cfbaa393 | 216 | { USB_DEVICE(0x03F0, 0x211D) }, /* HP ev2210 a.k.a MC5725 */ |
c5f3d87d EP |
217 | { USB_DEVICE(0x03F0, 0x1E1D) }, /* HP hs2300 a.k.a MC8775 */ |
218 | ||
e43062dd | 219 | { USB_DEVICE(0x1199, 0x0017) }, /* Sierra Wireless EM5625 */ |
69de51fd | 220 | { USB_DEVICE(0x1199, 0x0018) }, /* Sierra Wireless MC5720 */ |
e43062dd | 221 | { USB_DEVICE(0x1199, 0x0218) }, /* Sierra Wireless MC5720 */ |
69de51fd | 222 | { USB_DEVICE(0x1199, 0x0020) }, /* Sierra Wireless MC5725 */ |
b9e13ac3 | 223 | { USB_DEVICE(0x1199, 0x0220) }, /* Sierra Wireless MC5725 */ |
c5f3d87d EP |
224 | { USB_DEVICE(0x1199, 0x0022) }, /* Sierra Wireless EM5725 */ |
225 | { USB_DEVICE(0x1199, 0x0024) }, /* Sierra Wireless MC5727 */ | |
226 | { USB_DEVICE(0x1199, 0x0224) }, /* Sierra Wireless MC5727 */ | |
69de51fd | 227 | { USB_DEVICE(0x1199, 0x0019) }, /* Sierra Wireless AirCard 595 */ |
e43062dd | 228 | { USB_DEVICE(0x1199, 0x0021) }, /* Sierra Wireless AirCard 597E */ |
c5f3d87d | 229 | { USB_DEVICE(0x1199, 0x0112) }, /* Sierra Wireless AirCard 580 */ |
9454c46a | 230 | { USB_DEVICE(0x1199, 0x0120) }, /* Sierra Wireless USB Dongle 595U */ |
9d72c81d | 231 | { USB_DEVICE(0x1199, 0x0301) }, /* Sierra Wireless USB Dongle 250U */ |
c5f3d87d | 232 | /* Sierra Wireless C597 */ |
4e0fee82 | 233 | { USB_DEVICE_AND_INTERFACE_INFO(0x1199, 0x0023, 0xFF, 0xFF, 0xFF) }, |
c5f3d87d | 234 | /* Sierra Wireless T598 */ |
e3173b22 | 235 | { USB_DEVICE_AND_INTERFACE_INFO(0x1199, 0x0025, 0xFF, 0xFF, 0xFF) }, |
c5f3d87d EP |
236 | { USB_DEVICE(0x1199, 0x0026) }, /* Sierra Wireless T11 */ |
237 | { USB_DEVICE(0x1199, 0x0027) }, /* Sierra Wireless AC402 */ | |
238 | { USB_DEVICE(0x1199, 0x0028) }, /* Sierra Wireless MC5728 */ | |
239 | { USB_DEVICE(0x1199, 0x0029) }, /* Sierra Wireless Device */ | |
9454c46a | 240 | |
69de51fd KL |
241 | { USB_DEVICE(0x1199, 0x6802) }, /* Sierra Wireless MC8755 */ |
242 | { USB_DEVICE(0x1199, 0x6803) }, /* Sierra Wireless MC8765 */ | |
c5f3d87d EP |
243 | { USB_DEVICE(0x1199, 0x6804) }, /* Sierra Wireless MC8755 */ |
244 | { USB_DEVICE(0x1199, 0x6805) }, /* Sierra Wireless MC8765 */ | |
245 | { USB_DEVICE(0x1199, 0x6808) }, /* Sierra Wireless MC8755 */ | |
246 | { USB_DEVICE(0x1199, 0x6809) }, /* Sierra Wireless MC8765 */ | |
9454c46a | 247 | { USB_DEVICE(0x1199, 0x6812) }, /* Sierra Wireless MC8775 & AC 875U */ |
c5f3d87d | 248 | { USB_DEVICE(0x1199, 0x6813) }, /* Sierra Wireless MC8775 */ |
7f170a63 | 249 | { USB_DEVICE(0x1199, 0x6815) }, /* Sierra Wireless MC8775 */ |
c5f3d87d | 250 | { USB_DEVICE(0x1199, 0x6816) }, /* Sierra Wireless MC8775 */ |
69de51fd | 251 | { USB_DEVICE(0x1199, 0x6820) }, /* Sierra Wireless AirCard 875 */ |
7106967e | 252 | { USB_DEVICE(0x1199, 0x6821) }, /* Sierra Wireless AirCard 875U */ |
c5f3d87d | 253 | { USB_DEVICE(0x1199, 0x6822) }, /* Sierra Wireless AirCard 875E */ |
4e0fee82 KL |
254 | { USB_DEVICE(0x1199, 0x6832) }, /* Sierra Wireless MC8780 */ |
255 | { USB_DEVICE(0x1199, 0x6833) }, /* Sierra Wireless MC8781 */ | |
c5f3d87d EP |
256 | { USB_DEVICE(0x1199, 0x6834) }, /* Sierra Wireless MC8780 */ |
257 | { USB_DEVICE(0x1199, 0x6835) }, /* Sierra Wireless MC8781 */ | |
258 | { USB_DEVICE(0x1199, 0x6838) }, /* Sierra Wireless MC8780 */ | |
259 | { USB_DEVICE(0x1199, 0x6839) }, /* Sierra Wireless MC8781 */ | |
b77a5c70 | 260 | { USB_DEVICE(0x1199, 0x683A) }, /* Sierra Wireless MC8785 */ |
e3173b22 | 261 | { USB_DEVICE(0x1199, 0x683B) }, /* Sierra Wireless MC8785 Composite */ |
4db2299d EP |
262 | /* Sierra Wireless MC8790, MC8791, MC8792 Composite */ |
263 | { USB_DEVICE(0x1199, 0x683C) }, | |
264 | { USB_DEVICE(0x1199, 0x683D) }, /* Sierra Wireless MC8791 Composite */ | |
265 | /* Sierra Wireless MC8790, MC8791, MC8792 */ | |
266 | { USB_DEVICE(0x1199, 0x683E) }, | |
9454c46a KL |
267 | { USB_DEVICE(0x1199, 0x6850) }, /* Sierra Wireless AirCard 880 */ |
268 | { USB_DEVICE(0x1199, 0x6851) }, /* Sierra Wireless AirCard 881 */ | |
269 | { USB_DEVICE(0x1199, 0x6852) }, /* Sierra Wireless AirCard 880 E */ | |
270 | { USB_DEVICE(0x1199, 0x6853) }, /* Sierra Wireless AirCard 881 E */ | |
6835b32c | 271 | { USB_DEVICE(0x1199, 0x6855) }, /* Sierra Wireless AirCard 880 U */ |
62aad3ab | 272 | { USB_DEVICE(0x1199, 0x6856) }, /* Sierra Wireless AirCard 881 U */ |
e3173b22 KL |
273 | { USB_DEVICE(0x1199, 0x6859) }, /* Sierra Wireless AirCard 885 E */ |
274 | { USB_DEVICE(0x1199, 0x685A) }, /* Sierra Wireless AirCard 885 E */ | |
275 | /* Sierra Wireless C885 */ | |
276 | { USB_DEVICE_AND_INTERFACE_INFO(0x1199, 0x6880, 0xFF, 0xFF, 0xFF)}, | |
c5f3d87d | 277 | /* Sierra Wireless C888, Air Card 501, USB 303, USB 304 */ |
e3173b22 | 278 | { USB_DEVICE_AND_INTERFACE_INFO(0x1199, 0x6890, 0xFF, 0xFF, 0xFF)}, |
c5f3d87d | 279 | /* Sierra Wireless C22/C33 */ |
73b2c205 | 280 | { USB_DEVICE_AND_INTERFACE_INFO(0x1199, 0x6891, 0xFF, 0xFF, 0xFF)}, |
c5f3d87d | 281 | /* Sierra Wireless HSPA Non-Composite Device */ |
e3173b22 | 282 | { USB_DEVICE_AND_INTERFACE_INFO(0x1199, 0x6892, 0xFF, 0xFF, 0xFF)}, |
c5f3d87d | 283 | { USB_DEVICE(0x1199, 0x6893) }, /* Sierra Wireless Device */ |
4db2299d EP |
284 | { USB_DEVICE(0x1199, 0x68A3), /* Sierra Wireless Direct IP modems */ |
285 | .driver_info = (kernel_ulong_t)&direct_ip_interface_blacklist | |
19a3dd15 TC |
286 | }, |
287 | /* AT&T Direct IP LTE modems */ | |
288 | { USB_DEVICE_AND_INTERFACE_INFO(0x0F3D, 0x68AA, 0xFF, 0xFF, 0xFF), | |
289 | .driver_info = (kernel_ulong_t)&direct_ip_interface_blacklist | |
4db2299d | 290 | }, |
e1dc5157 JT |
291 | { USB_DEVICE(0x0f3d, 0x68A3), /* Airprime/Sierra Wireless Direct IP modems */ |
292 | .driver_info = (kernel_ulong_t)&direct_ip_interface_blacklist | |
293 | }, | |
4db2299d | 294 | |
033a3fb9 KL |
295 | { } |
296 | }; | |
964ee1de | 297 | MODULE_DEVICE_TABLE(usb, id_table); |
033a3fb9 | 298 | |
033a3fb9 | 299 | |
033a3fb9 | 300 | struct sierra_port_private { |
17c23274 GKH |
301 | spinlock_t lock; /* lock the structure */ |
302 | int outstanding_urbs; /* number of out urbs in flight */ | |
e6929a90 ON |
303 | struct usb_anchor active; |
304 | struct usb_anchor delayed; | |
17c23274 | 305 | |
3a2b808e EP |
306 | int num_out_urbs; |
307 | int num_in_urbs; | |
4f4f9c53 | 308 | /* Input endpoints and buffers for this port */ |
3a2b808e | 309 | struct urb *in_urbs[N_IN_URB_HM]; |
033a3fb9 KL |
310 | |
311 | /* Settings for the port */ | |
312 | int rts_state; /* Handshaking pins (outputs) */ | |
313 | int dtr_state; | |
314 | int cts_state; /* Handshaking pins (inputs) */ | |
315 | int dsr_state; | |
316 | int dcd_state; | |
317 | int ri_state; | |
e6929a90 | 318 | unsigned int opened:1; |
033a3fb9 KL |
319 | }; |
320 | ||
335f8514 | 321 | static int sierra_send_setup(struct usb_serial_port *port) |
69de51fd | 322 | { |
964ee1de GKH |
323 | struct usb_serial *serial = port->serial; |
324 | struct sierra_port_private *portdata; | |
228426ed | 325 | __u16 interface = 0; |
335f8514 | 326 | int val = 0; |
3c77d513 EP |
327 | int do_send = 0; |
328 | int retval; | |
033a3fb9 | 329 | |
964ee1de | 330 | portdata = usb_get_serial_port_data(port); |
033a3fb9 | 331 | |
335f8514 AC |
332 | if (portdata->dtr_state) |
333 | val |= 0x01; | |
334 | if (portdata->rts_state) | |
335 | val |= 0x02; | |
336 | ||
337 | /* If composite device then properly report interface */ | |
00b040de | 338 | if (serial->num_ports == 1) { |
335f8514 | 339 | interface = sierra_calc_interface(serial); |
00b040de AC |
340 | /* Control message is sent only to interfaces with |
341 | * interrupt_in endpoints | |
342 | */ | |
343 | if (port->interrupt_in_urb) { | |
344 | /* send control message */ | |
3c77d513 | 345 | do_send = 1; |
00b040de AC |
346 | } |
347 | } | |
335f8514 AC |
348 | |
349 | /* Otherwise the need to do non-composite mapping */ | |
350 | else { | |
351 | if (port->bulk_out_endpointAddress == 2) | |
352 | interface = 0; | |
353 | else if (port->bulk_out_endpointAddress == 4) | |
354 | interface = 1; | |
355 | else if (port->bulk_out_endpointAddress == 5) | |
356 | interface = 2; | |
3c77d513 EP |
357 | |
358 | do_send = 1; | |
00b040de | 359 | } |
3c77d513 EP |
360 | if (!do_send) |
361 | return 0; | |
362 | ||
5b7c1178 ON |
363 | retval = usb_autopm_get_interface(serial->interface); |
364 | if (retval < 0) | |
365 | return retval; | |
366 | ||
3c77d513 EP |
367 | retval = usb_control_msg(serial->dev, usb_rcvctrlpipe(serial->dev, 0), |
368 | 0x22, 0x21, val, interface, NULL, 0, USB_CTRL_SET_TIMEOUT); | |
369 | usb_autopm_put_interface(serial->interface); | |
370 | ||
371 | return retval; | |
69de51fd KL |
372 | } |
373 | ||
95da310e AC |
374 | static void sierra_set_termios(struct tty_struct *tty, |
375 | struct usb_serial_port *port, struct ktermios *old_termios) | |
033a3fb9 | 376 | { |
adc8d746 | 377 | tty_termios_copy_hw(&tty->termios, old_termios); |
335f8514 | 378 | sierra_send_setup(port); |
033a3fb9 KL |
379 | } |
380 | ||
60b33c13 | 381 | static int sierra_tiocmget(struct tty_struct *tty) |
033a3fb9 | 382 | { |
95da310e | 383 | struct usb_serial_port *port = tty->driver_data; |
033a3fb9 KL |
384 | unsigned int value; |
385 | struct sierra_port_private *portdata; | |
386 | ||
387 | portdata = usb_get_serial_port_data(port); | |
388 | ||
389 | value = ((portdata->rts_state) ? TIOCM_RTS : 0) | | |
390 | ((portdata->dtr_state) ? TIOCM_DTR : 0) | | |
391 | ((portdata->cts_state) ? TIOCM_CTS : 0) | | |
392 | ((portdata->dsr_state) ? TIOCM_DSR : 0) | | |
393 | ((portdata->dcd_state) ? TIOCM_CAR : 0) | | |
394 | ((portdata->ri_state) ? TIOCM_RNG : 0); | |
395 | ||
396 | return value; | |
397 | } | |
398 | ||
20b9d177 | 399 | static int sierra_tiocmset(struct tty_struct *tty, |
033a3fb9 KL |
400 | unsigned int set, unsigned int clear) |
401 | { | |
95da310e | 402 | struct usb_serial_port *port = tty->driver_data; |
033a3fb9 KL |
403 | struct sierra_port_private *portdata; |
404 | ||
405 | portdata = usb_get_serial_port_data(port); | |
406 | ||
407 | if (set & TIOCM_RTS) | |
408 | portdata->rts_state = 1; | |
409 | if (set & TIOCM_DTR) | |
410 | portdata->dtr_state = 1; | |
411 | ||
412 | if (clear & TIOCM_RTS) | |
413 | portdata->rts_state = 0; | |
414 | if (clear & TIOCM_DTR) | |
415 | portdata->dtr_state = 0; | |
335f8514 | 416 | return sierra_send_setup(port); |
033a3fb9 KL |
417 | } |
418 | ||
b9a44bc1 EP |
419 | static void sierra_release_urb(struct urb *urb) |
420 | { | |
421 | struct usb_serial_port *port; | |
422 | if (urb) { | |
64318a52 | 423 | port = urb->context; |
b9a44bc1 EP |
424 | kfree(urb->transfer_buffer); |
425 | usb_free_urb(urb); | |
426 | } | |
427 | } | |
428 | ||
17c23274 GKH |
429 | static void sierra_outdat_callback(struct urb *urb) |
430 | { | |
431 | struct usb_serial_port *port = urb->context; | |
432 | struct sierra_port_private *portdata = usb_get_serial_port_data(port); | |
e6929a90 | 433 | struct sierra_intf_private *intfdata; |
17c23274 | 434 | int status = urb->status; |
17c23274 | 435 | |
e6929a90 | 436 | intfdata = port->serial->private; |
17c23274 GKH |
437 | |
438 | /* free up the transfer buffer, as usb_free_urb() does not do this */ | |
439 | kfree(urb->transfer_buffer); | |
e6929a90 | 440 | usb_autopm_put_interface_async(port->serial->interface); |
17c23274 | 441 | if (status) |
7384a922 | 442 | dev_dbg(&port->dev, "%s - nonzero write bulk status " |
5d44b361 | 443 | "received: %d\n", __func__, status); |
17c23274 | 444 | |
e6929a90 | 445 | spin_lock(&portdata->lock); |
17c23274 | 446 | --portdata->outstanding_urbs; |
e6929a90 ON |
447 | spin_unlock(&portdata->lock); |
448 | spin_lock(&intfdata->susp_lock); | |
449 | --intfdata->in_flight; | |
450 | spin_unlock(&intfdata->susp_lock); | |
17c23274 GKH |
451 | |
452 | usb_serial_port_softint(port); | |
453 | } | |
454 | ||
033a3fb9 | 455 | /* Write */ |
95da310e AC |
456 | static int sierra_write(struct tty_struct *tty, struct usb_serial_port *port, |
457 | const unsigned char *buf, int count) | |
033a3fb9 | 458 | { |
a45a1e07 | 459 | struct sierra_port_private *portdata; |
e6929a90 | 460 | struct sierra_intf_private *intfdata; |
17c23274 GKH |
461 | struct usb_serial *serial = port->serial; |
462 | unsigned long flags; | |
463 | unsigned char *buffer; | |
464 | struct urb *urb; | |
40d2ff32 EP |
465 | size_t writesize = min((size_t)count, (size_t)MAX_TRANSFER); |
466 | int retval = 0; | |
467 | ||
468 | /* verify that we actually have some data to write */ | |
469 | if (count == 0) | |
470 | return 0; | |
033a3fb9 KL |
471 | |
472 | portdata = usb_get_serial_port_data(port); | |
e6929a90 | 473 | intfdata = serial->private; |
033a3fb9 | 474 | |
0b10395a | 475 | dev_dbg(&port->dev, "%s: write (%zd bytes)\n", __func__, writesize); |
17c23274 | 476 | spin_lock_irqsave(&portdata->lock, flags); |
40d2ff32 EP |
477 | dev_dbg(&port->dev, "%s - outstanding_urbs: %d\n", __func__, |
478 | portdata->outstanding_urbs); | |
3a2b808e | 479 | if (portdata->outstanding_urbs > portdata->num_out_urbs) { |
17c23274 | 480 | spin_unlock_irqrestore(&portdata->lock, flags); |
7384a922 | 481 | dev_dbg(&port->dev, "%s - write limit hit\n", __func__); |
17c23274 GKH |
482 | return 0; |
483 | } | |
484 | portdata->outstanding_urbs++; | |
40d2ff32 EP |
485 | dev_dbg(&port->dev, "%s - 1, outstanding_urbs: %d\n", __func__, |
486 | portdata->outstanding_urbs); | |
17c23274 GKH |
487 | spin_unlock_irqrestore(&portdata->lock, flags); |
488 | ||
e6929a90 ON |
489 | retval = usb_autopm_get_interface_async(serial->interface); |
490 | if (retval < 0) { | |
491 | spin_lock_irqsave(&portdata->lock, flags); | |
492 | portdata->outstanding_urbs--; | |
493 | spin_unlock_irqrestore(&portdata->lock, flags); | |
494 | goto error_simple; | |
495 | } | |
496 | ||
40d2ff32 | 497 | buffer = kmalloc(writesize, GFP_ATOMIC); |
17c23274 | 498 | if (!buffer) { |
40d2ff32 | 499 | retval = -ENOMEM; |
17c23274 GKH |
500 | goto error_no_buffer; |
501 | } | |
033a3fb9 | 502 | |
17c23274 GKH |
503 | urb = usb_alloc_urb(0, GFP_ATOMIC); |
504 | if (!urb) { | |
40d2ff32 | 505 | retval = -ENOMEM; |
17c23274 GKH |
506 | goto error_no_urb; |
507 | } | |
033a3fb9 | 508 | |
40d2ff32 | 509 | memcpy(buffer, buf, writesize); |
033a3fb9 | 510 | |
59d33f2f | 511 | usb_serial_debug_data(&port->dev, __func__, writesize, buffer); |
17c23274 GKH |
512 | |
513 | usb_fill_bulk_urb(urb, serial->dev, | |
514 | usb_sndbulkpipe(serial->dev, | |
515 | port->bulk_out_endpointAddress), | |
40d2ff32 | 516 | buffer, writesize, sierra_outdat_callback, port); |
17c23274 | 517 | |
238ebd13 EP |
518 | /* Handle the need to send a zero length packet */ |
519 | urb->transfer_flags |= URB_ZERO_PACKET; | |
520 | ||
e6929a90 ON |
521 | spin_lock_irqsave(&intfdata->susp_lock, flags); |
522 | ||
523 | if (intfdata->suspended) { | |
524 | usb_anchor_urb(urb, &portdata->delayed); | |
525 | spin_unlock_irqrestore(&intfdata->susp_lock, flags); | |
526 | goto skip_power; | |
527 | } else { | |
528 | usb_anchor_urb(urb, &portdata->active); | |
529 | } | |
17c23274 | 530 | /* send it down the pipe */ |
40d2ff32 EP |
531 | retval = usb_submit_urb(urb, GFP_ATOMIC); |
532 | if (retval) { | |
e6929a90 ON |
533 | usb_unanchor_urb(urb); |
534 | spin_unlock_irqrestore(&intfdata->susp_lock, flags); | |
17c23274 | 535 | dev_err(&port->dev, "%s - usb_submit_urb(write bulk) failed " |
40d2ff32 | 536 | "with status = %d\n", __func__, retval); |
17c23274 | 537 | goto error; |
e6929a90 ON |
538 | } else { |
539 | intfdata->in_flight++; | |
540 | spin_unlock_irqrestore(&intfdata->susp_lock, flags); | |
033a3fb9 KL |
541 | } |
542 | ||
e6929a90 | 543 | skip_power: |
17c23274 GKH |
544 | /* we are done with this urb, so let the host driver |
545 | * really free it when it is finished with it */ | |
546 | usb_free_urb(urb); | |
547 | ||
40d2ff32 | 548 | return writesize; |
17c23274 GKH |
549 | error: |
550 | usb_free_urb(urb); | |
551 | error_no_urb: | |
552 | kfree(buffer); | |
553 | error_no_buffer: | |
554 | spin_lock_irqsave(&portdata->lock, flags); | |
555 | --portdata->outstanding_urbs; | |
40d2ff32 EP |
556 | dev_dbg(&port->dev, "%s - 2. outstanding_urbs: %d\n", __func__, |
557 | portdata->outstanding_urbs); | |
17c23274 | 558 | spin_unlock_irqrestore(&portdata->lock, flags); |
e6929a90 ON |
559 | usb_autopm_put_interface_async(serial->interface); |
560 | error_simple: | |
40d2ff32 | 561 | return retval; |
033a3fb9 KL |
562 | } |
563 | ||
564 | static void sierra_indat_callback(struct urb *urb) | |
565 | { | |
566 | int err; | |
567 | int endpoint; | |
568 | struct usb_serial_port *port; | |
033a3fb9 | 569 | unsigned char *data = urb->transfer_buffer; |
17dd2215 | 570 | int status = urb->status; |
033a3fb9 | 571 | |
033a3fb9 | 572 | endpoint = usb_pipeendpoint(urb->pipe); |
b0cda8c5 EP |
573 | port = urb->context; |
574 | ||
17dd2215 | 575 | if (status) { |
7384a922 | 576 | dev_dbg(&port->dev, "%s: nonzero status: %d on" |
5d44b361 | 577 | " endpoint %02x\n", __func__, status, endpoint); |
033a3fb9 | 578 | } else { |
033a3fb9 | 579 | if (urb->actual_length) { |
2e124b4a JS |
580 | tty_insert_flip_string(&port->port, data, |
581 | urb->actual_length); | |
582 | tty_flip_buffer_push(&port->port); | |
583 | ||
584 | usb_serial_debug_data(&port->dev, __func__, | |
585 | urb->actual_length, data); | |
b0cda8c5 | 586 | } else { |
7384a922 | 587 | dev_dbg(&port->dev, "%s: empty read urb" |
5d44b361 | 588 | " received\n", __func__); |
033a3fb9 KL |
589 | } |
590 | } | |
b0cda8c5 EP |
591 | |
592 | /* Resubmit urb so we continue receiving */ | |
1f87158e | 593 | if (status != -ESHUTDOWN && status != -EPERM) { |
e6929a90 | 594 | usb_mark_last_busy(port->serial->dev); |
b0cda8c5 | 595 | err = usb_submit_urb(urb, GFP_ATOMIC); |
1f87158e | 596 | if (err && err != -EPERM) |
b0cda8c5 EP |
597 | dev_err(&port->dev, "resubmit read urb failed." |
598 | "(%d)\n", err); | |
599 | } | |
033a3fb9 KL |
600 | } |
601 | ||
033a3fb9 KL |
602 | static void sierra_instat_callback(struct urb *urb) |
603 | { | |
604 | int err; | |
17dd2215 | 605 | int status = urb->status; |
cdc97792 | 606 | struct usb_serial_port *port = urb->context; |
033a3fb9 KL |
607 | struct sierra_port_private *portdata = usb_get_serial_port_data(port); |
608 | struct usb_serial *serial = port->serial; | |
609 | ||
5d44b361 | 610 | dev_dbg(&port->dev, "%s: urb %p port %p has data %p\n", __func__, |
7384a922 | 611 | urb, port, portdata); |
033a3fb9 | 612 | |
17dd2215 | 613 | if (status == 0) { |
033a3fb9 KL |
614 | struct usb_ctrlrequest *req_pkt = |
615 | (struct usb_ctrlrequest *)urb->transfer_buffer; | |
616 | ||
617 | if (!req_pkt) { | |
7384a922 KL |
618 | dev_dbg(&port->dev, "%s: NULL req_pkt\n", |
619 | __func__); | |
033a3fb9 KL |
620 | return; |
621 | } | |
622 | if ((req_pkt->bRequestType == 0xA1) && | |
623 | (req_pkt->bRequest == 0x20)) { | |
624 | int old_dcd_state; | |
625 | unsigned char signals = *((unsigned char *) | |
626 | urb->transfer_buffer + | |
627 | sizeof(struct usb_ctrlrequest)); | |
628 | ||
5d44b361 | 629 | dev_dbg(&port->dev, "%s: signal x%x\n", __func__, |
7384a922 | 630 | signals); |
033a3fb9 KL |
631 | |
632 | old_dcd_state = portdata->dcd_state; | |
633 | portdata->cts_state = 1; | |
634 | portdata->dcd_state = ((signals & 0x01) ? 1 : 0); | |
635 | portdata->dsr_state = ((signals & 0x02) ? 1 : 0); | |
636 | portdata->ri_state = ((signals & 0x08) ? 1 : 0); | |
637 | ||
aa27a094 JS |
638 | if (old_dcd_state && !portdata->dcd_state) |
639 | tty_port_tty_hangup(&port->port, true); | |
033a3fb9 | 640 | } else { |
5d44b361 | 641 | dev_dbg(&port->dev, "%s: type %x req %x\n", |
7384a922 KL |
642 | __func__, req_pkt->bRequestType, |
643 | req_pkt->bRequest); | |
033a3fb9 KL |
644 | } |
645 | } else | |
5d44b361 | 646 | dev_dbg(&port->dev, "%s: error %d\n", __func__, status); |
033a3fb9 KL |
647 | |
648 | /* Resubmit urb so we continue receiving IRQ data */ | |
1f87158e | 649 | if (status != -ESHUTDOWN && status != -ENOENT) { |
e6929a90 | 650 | usb_mark_last_busy(serial->dev); |
033a3fb9 | 651 | err = usb_submit_urb(urb, GFP_ATOMIC); |
1f87158e | 652 | if (err && err != -EPERM) |
c76a23da EP |
653 | dev_err(&port->dev, "%s: resubmit intr urb " |
654 | "failed. (%d)\n", __func__, err); | |
033a3fb9 KL |
655 | } |
656 | } | |
657 | ||
95da310e | 658 | static int sierra_write_room(struct tty_struct *tty) |
033a3fb9 | 659 | { |
95da310e | 660 | struct usb_serial_port *port = tty->driver_data; |
17c23274 GKH |
661 | struct sierra_port_private *portdata = usb_get_serial_port_data(port); |
662 | unsigned long flags; | |
033a3fb9 | 663 | |
17c23274 GKH |
664 | /* try to give a good number back based on if we have any free urbs at |
665 | * this point in time */ | |
666 | spin_lock_irqsave(&portdata->lock, flags); | |
3a2b808e | 667 | if (portdata->outstanding_urbs > (portdata->num_out_urbs * 2) / 3) { |
17c23274 | 668 | spin_unlock_irqrestore(&portdata->lock, flags); |
7384a922 | 669 | dev_dbg(&port->dev, "%s - write limit hit\n", __func__); |
17c23274 | 670 | return 0; |
033a3fb9 | 671 | } |
17c23274 | 672 | spin_unlock_irqrestore(&portdata->lock, flags); |
033a3fb9 | 673 | |
17c23274 | 674 | return 2048; |
033a3fb9 KL |
675 | } |
676 | ||
b9a44bc1 | 677 | static void sierra_stop_rx_urbs(struct usb_serial_port *port) |
033a3fb9 | 678 | { |
9e85c5f6 | 679 | int i; |
b9a44bc1 | 680 | struct sierra_port_private *portdata = usb_get_serial_port_data(port); |
033a3fb9 | 681 | |
3a2b808e | 682 | for (i = 0; i < portdata->num_in_urbs; i++) |
b9a44bc1 | 683 | usb_kill_urb(portdata->in_urbs[i]); |
033a3fb9 | 684 | |
b9a44bc1 EP |
685 | usb_kill_urb(port->interrupt_in_urb); |
686 | } | |
033a3fb9 | 687 | |
b9a44bc1 EP |
688 | static int sierra_submit_rx_urbs(struct usb_serial_port *port, gfp_t mem_flags) |
689 | { | |
690 | int ok_cnt; | |
691 | int err = -EINVAL; | |
692 | int i; | |
693 | struct urb *urb; | |
694 | struct sierra_port_private *portdata = usb_get_serial_port_data(port); | |
033a3fb9 | 695 | |
b9a44bc1 | 696 | ok_cnt = 0; |
3a2b808e | 697 | for (i = 0; i < portdata->num_in_urbs; i++) { |
033a3fb9 | 698 | urb = portdata->in_urbs[i]; |
9e85c5f6 | 699 | if (!urb) |
033a3fb9 | 700 | continue; |
b9a44bc1 EP |
701 | err = usb_submit_urb(urb, mem_flags); |
702 | if (err) { | |
703 | dev_err(&port->dev, "%s: submit urb failed: %d\n", | |
704 | __func__, err); | |
705 | } else { | |
706 | ok_cnt++; | |
033a3fb9 | 707 | } |
b9a44bc1 | 708 | } |
033a3fb9 | 709 | |
b9a44bc1 EP |
710 | if (ok_cnt && port->interrupt_in_urb) { |
711 | err = usb_submit_urb(port->interrupt_in_urb, mem_flags); | |
712 | if (err) { | |
713 | dev_err(&port->dev, "%s: submit intr urb failed: %d\n", | |
714 | __func__, err); | |
033a3fb9 KL |
715 | } |
716 | } | |
717 | ||
b9a44bc1 EP |
718 | if (ok_cnt > 0) /* at least one rx urb submitted */ |
719 | return 0; | |
720 | else | |
721 | return err; | |
722 | } | |
723 | ||
724 | static struct urb *sierra_setup_urb(struct usb_serial *serial, int endpoint, | |
725 | int dir, void *ctx, int len, | |
726 | gfp_t mem_flags, | |
727 | usb_complete_t callback) | |
728 | { | |
729 | struct urb *urb; | |
730 | u8 *buf; | |
731 | ||
732 | if (endpoint == -1) | |
733 | return NULL; | |
033a3fb9 | 734 | |
b9a44bc1 | 735 | urb = usb_alloc_urb(0, mem_flags); |
10c642d0 | 736 | if (!urb) |
b9a44bc1 | 737 | return NULL; |
b9a44bc1 EP |
738 | |
739 | buf = kmalloc(len, mem_flags); | |
740 | if (buf) { | |
741 | /* Fill URB using supplied data */ | |
742 | usb_fill_bulk_urb(urb, serial->dev, | |
743 | usb_sndbulkpipe(serial->dev, endpoint) | dir, | |
744 | buf, len, callback, ctx); | |
745 | ||
b9a44bc1 EP |
746 | dev_dbg(&serial->dev->dev, "%s %c u : %p d:%p\n", __func__, |
747 | dir == USB_DIR_IN ? 'i' : 'o', urb, buf); | |
748 | } else { | |
b9a44bc1 EP |
749 | sierra_release_urb(urb); |
750 | urb = NULL; | |
751 | } | |
752 | ||
753 | return urb; | |
033a3fb9 KL |
754 | } |
755 | ||
b9a44bc1 | 756 | static void sierra_close(struct usb_serial_port *port) |
033a3fb9 | 757 | { |
b9a44bc1 | 758 | int i; |
033a3fb9 KL |
759 | struct usb_serial *serial = port->serial; |
760 | struct sierra_port_private *portdata; | |
e6929a90 ON |
761 | struct sierra_intf_private *intfdata = port->serial->private; |
762 | ||
033a3fb9 | 763 | portdata = usb_get_serial_port_data(port); |
b9a44bc1 EP |
764 | |
765 | portdata->rts_state = 0; | |
766 | portdata->dtr_state = 0; | |
033a3fb9 | 767 | |
9c210bfa JH |
768 | mutex_lock(&serial->disc_mutex); |
769 | if (!serial->disconnected) { | |
770 | serial->interface->needs_remote_wakeup = 0; | |
771 | /* odd error handling due to pm counters */ | |
772 | if (!usb_autopm_get_interface(serial->interface)) | |
773 | sierra_send_setup(port); | |
774 | else | |
775 | usb_autopm_get_interface_no_resume(serial->interface); | |
776 | ||
777 | } | |
778 | mutex_unlock(&serial->disc_mutex); | |
779 | spin_lock_irq(&intfdata->susp_lock); | |
780 | portdata->opened = 0; | |
781 | spin_unlock_irq(&intfdata->susp_lock); | |
782 | ||
783 | sierra_stop_rx_urbs(port); | |
784 | for (i = 0; i < portdata->num_in_urbs; i++) { | |
785 | sierra_release_urb(portdata->in_urbs[i]); | |
786 | portdata->in_urbs[i] = NULL; | |
335f8514 AC |
787 | } |
788 | } | |
789 | ||
a509a7e4 | 790 | static int sierra_open(struct tty_struct *tty, struct usb_serial_port *port) |
335f8514 | 791 | { |
b9a44bc1 EP |
792 | struct sierra_port_private *portdata; |
793 | struct usb_serial *serial = port->serial; | |
e6929a90 | 794 | struct sierra_intf_private *intfdata = serial->private; |
335f8514 | 795 | int i; |
b9a44bc1 EP |
796 | int err; |
797 | int endpoint; | |
798 | struct urb *urb; | |
799 | ||
800 | portdata = usb_get_serial_port_data(port); | |
801 | ||
b9a44bc1 EP |
802 | /* Set some sane defaults */ |
803 | portdata->rts_state = 1; | |
804 | portdata->dtr_state = 1; | |
805 | ||
806 | ||
807 | endpoint = port->bulk_in_endpointAddress; | |
3a2b808e | 808 | for (i = 0; i < portdata->num_in_urbs; i++) { |
b9a44bc1 EP |
809 | urb = sierra_setup_urb(serial, endpoint, USB_DIR_IN, port, |
810 | IN_BUFLEN, GFP_KERNEL, | |
811 | sierra_indat_callback); | |
812 | portdata->in_urbs[i] = urb; | |
813 | } | |
814 | /* clear halt condition */ | |
815 | usb_clear_halt(serial->dev, | |
816 | usb_sndbulkpipe(serial->dev, endpoint) | USB_DIR_IN); | |
817 | ||
818 | err = sierra_submit_rx_urbs(port, GFP_KERNEL); | |
353fe198 JH |
819 | if (err) |
820 | goto err_submit; | |
821 | ||
b9a44bc1 EP |
822 | sierra_send_setup(port); |
823 | ||
e6929a90 ON |
824 | serial->interface->needs_remote_wakeup = 1; |
825 | spin_lock_irq(&intfdata->susp_lock); | |
826 | portdata->opened = 1; | |
827 | spin_unlock_irq(&intfdata->susp_lock); | |
828 | usb_autopm_put_interface(serial->interface); | |
829 | ||
b9a44bc1 | 830 | return 0; |
353fe198 JH |
831 | |
832 | err_submit: | |
833 | sierra_stop_rx_urbs(port); | |
834 | ||
835 | for (i = 0; i < portdata->num_in_urbs; i++) { | |
836 | sierra_release_urb(portdata->in_urbs[i]); | |
837 | portdata->in_urbs[i] = NULL; | |
838 | } | |
839 | ||
840 | return err; | |
b9a44bc1 EP |
841 | } |
842 | ||
843 | ||
844 | static void sierra_dtr_rts(struct usb_serial_port *port, int on) | |
845 | { | |
335f8514 | 846 | struct sierra_port_private *portdata; |
033a3fb9 | 847 | |
335f8514 | 848 | portdata = usb_get_serial_port_data(port); |
b9a44bc1 EP |
849 | portdata->rts_state = on; |
850 | portdata->dtr_state = on; | |
335f8514 | 851 | |
b2ca6990 | 852 | sierra_send_setup(port); |
033a3fb9 KL |
853 | } |
854 | ||
033a3fb9 KL |
855 | static int sierra_startup(struct usb_serial *serial) |
856 | { | |
084817d7 | 857 | struct sierra_intf_private *intfdata; |
033a3fb9 | 858 | |
084817d7 JH |
859 | intfdata = kzalloc(sizeof(*intfdata), GFP_KERNEL); |
860 | if (!intfdata) | |
861 | return -ENOMEM; | |
862 | ||
863 | spin_lock_init(&intfdata->susp_lock); | |
864 | ||
865 | usb_set_serial_data(serial, intfdata); | |
866 | ||
228426ed | 867 | /* Set Device mode to D0 */ |
112225b1 KL |
868 | sierra_set_power_state(serial->dev, 0x0000); |
869 | ||
228426ed KL |
870 | /* Check NMEA and set */ |
871 | if (nmea) | |
872 | sierra_vsc_set_nmea(serial->dev, 1); | |
873 | ||
f525c05b JH |
874 | return 0; |
875 | } | |
876 | ||
877 | static void sierra_release(struct usb_serial *serial) | |
878 | { | |
879 | struct sierra_intf_private *intfdata; | |
880 | ||
881 | intfdata = usb_get_serial_data(serial); | |
882 | kfree(intfdata); | |
883 | } | |
884 | ||
885 | static int sierra_port_probe(struct usb_serial_port *port) | |
886 | { | |
887 | struct usb_serial *serial = port->serial; | |
888 | struct sierra_port_private *portdata; | |
889 | const struct sierra_iface_info *himemoryp; | |
890 | u8 ifnum; | |
891 | ||
892 | portdata = kzalloc(sizeof(*portdata), GFP_KERNEL); | |
893 | if (!portdata) | |
894 | return -ENOMEM; | |
895 | ||
896 | spin_lock_init(&portdata->lock); | |
897 | init_usb_anchor(&portdata->active); | |
898 | init_usb_anchor(&portdata->delayed); | |
899 | ||
900 | /* Assume low memory requirements */ | |
901 | portdata->num_out_urbs = N_OUT_URB; | |
902 | portdata->num_in_urbs = N_IN_URB; | |
903 | ||
904 | /* Determine actual memory requirements */ | |
905 | if (serial->num_ports == 1) { | |
906 | /* Get interface number for composite device */ | |
907 | ifnum = sierra_calc_interface(serial); | |
908 | himemoryp = &typeB_interface_list; | |
909 | } else { | |
910 | /* This is really the usb-serial port number of the interface | |
911 | * rather than the interface number. | |
912 | */ | |
1143832e | 913 | ifnum = port->port_number; |
f525c05b | 914 | himemoryp = &typeA_interface_list; |
033a3fb9 KL |
915 | } |
916 | ||
f525c05b JH |
917 | if (is_himemory(ifnum, himemoryp)) { |
918 | portdata->num_out_urbs = N_OUT_URB_HM; | |
919 | portdata->num_in_urbs = N_IN_URB_HM; | |
7e41f9bc JH |
920 | } |
921 | ||
f525c05b JH |
922 | dev_dbg(&port->dev, |
923 | "Memory usage (urbs) interface #%d, in=%d, out=%d\n", | |
924 | ifnum, portdata->num_in_urbs, portdata->num_out_urbs); | |
925 | ||
926 | usb_set_serial_port_data(port, portdata); | |
927 | ||
928 | return 0; | |
033a3fb9 KL |
929 | } |
930 | ||
f525c05b | 931 | static int sierra_port_remove(struct usb_serial_port *port) |
033a3fb9 | 932 | { |
033a3fb9 KL |
933 | struct sierra_port_private *portdata; |
934 | ||
f525c05b | 935 | portdata = usb_get_serial_port_data(port); |
8452727d | 936 | usb_set_serial_port_data(port, NULL); |
f525c05b JH |
937 | kfree(portdata); |
938 | ||
939 | return 0; | |
033a3fb9 KL |
940 | } |
941 | ||
cd604513 | 942 | #ifdef CONFIG_PM |
e6929a90 ON |
943 | static void stop_read_write_urbs(struct usb_serial *serial) |
944 | { | |
b64dc0a5 | 945 | int i; |
e6929a90 ON |
946 | struct usb_serial_port *port; |
947 | struct sierra_port_private *portdata; | |
948 | ||
949 | /* Stop reading/writing urbs */ | |
950 | for (i = 0; i < serial->num_ports; ++i) { | |
951 | port = serial->port[i]; | |
952 | portdata = usb_get_serial_port_data(port); | |
8452727d JH |
953 | if (!portdata) |
954 | continue; | |
b64dc0a5 | 955 | sierra_stop_rx_urbs(port); |
e6929a90 ON |
956 | usb_kill_anchored_urbs(&portdata->active); |
957 | } | |
958 | } | |
959 | ||
960 | static int sierra_suspend(struct usb_serial *serial, pm_message_t message) | |
961 | { | |
962 | struct sierra_intf_private *intfdata; | |
963 | int b; | |
964 | ||
5b1b0b81 | 965 | if (PMSG_IS_AUTO(message)) { |
e6929a90 ON |
966 | intfdata = serial->private; |
967 | spin_lock_irq(&intfdata->susp_lock); | |
968 | b = intfdata->in_flight; | |
969 | ||
970 | if (b) { | |
971 | spin_unlock_irq(&intfdata->susp_lock); | |
972 | return -EBUSY; | |
973 | } else { | |
974 | intfdata->suspended = 1; | |
975 | spin_unlock_irq(&intfdata->susp_lock); | |
976 | } | |
977 | } | |
978 | stop_read_write_urbs(serial); | |
979 | ||
980 | return 0; | |
981 | } | |
982 | ||
983 | static int sierra_resume(struct usb_serial *serial) | |
984 | { | |
985 | struct usb_serial_port *port; | |
986 | struct sierra_intf_private *intfdata = serial->private; | |
987 | struct sierra_port_private *portdata; | |
988 | struct urb *urb; | |
989 | int ec = 0; | |
990 | int i, err; | |
991 | ||
992 | spin_lock_irq(&intfdata->susp_lock); | |
993 | for (i = 0; i < serial->num_ports; i++) { | |
994 | port = serial->port[i]; | |
995 | portdata = usb_get_serial_port_data(port); | |
996 | ||
8452727d JH |
997 | if (!portdata) |
998 | continue; | |
999 | ||
e6929a90 ON |
1000 | while ((urb = usb_get_from_anchor(&portdata->delayed))) { |
1001 | usb_anchor_urb(urb, &portdata->active); | |
1002 | intfdata->in_flight++; | |
1003 | err = usb_submit_urb(urb, GFP_ATOMIC); | |
1004 | if (err < 0) { | |
1005 | intfdata->in_flight--; | |
1006 | usb_unanchor_urb(urb); | |
7fdd26a0 JH |
1007 | kfree(urb->transfer_buffer); |
1008 | usb_free_urb(urb); | |
1009 | spin_lock(&portdata->lock); | |
1010 | portdata->outstanding_urbs--; | |
1011 | spin_unlock(&portdata->lock); | |
1012 | continue; | |
e6929a90 ON |
1013 | } |
1014 | } | |
1015 | ||
1016 | if (portdata->opened) { | |
1017 | err = sierra_submit_rx_urbs(port, GFP_ATOMIC); | |
1018 | if (err) | |
1019 | ec++; | |
1020 | } | |
1021 | } | |
1022 | intfdata->suspended = 0; | |
1023 | spin_unlock_irq(&intfdata->susp_lock); | |
1024 | ||
1025 | return ec ? -EIO : 0; | |
1026 | } | |
7650cd96 | 1027 | |
cd604513 AM |
1028 | #else |
1029 | #define sierra_suspend NULL | |
1030 | #define sierra_resume NULL | |
1031 | #endif | |
e6929a90 | 1032 | |
228426ed | 1033 | static struct usb_serial_driver sierra_device = { |
964ee1de GKH |
1034 | .driver = { |
1035 | .owner = THIS_MODULE, | |
4e0fee82 | 1036 | .name = "sierra", |
964ee1de | 1037 | }, |
228426ed KL |
1038 | .description = "Sierra USB modem", |
1039 | .id_table = id_table, | |
228426ed KL |
1040 | .calc_num_ports = sierra_calc_num_ports, |
1041 | .probe = sierra_probe, | |
964ee1de GKH |
1042 | .open = sierra_open, |
1043 | .close = sierra_close, | |
335f8514 | 1044 | .dtr_rts = sierra_dtr_rts, |
964ee1de GKH |
1045 | .write = sierra_write, |
1046 | .write_room = sierra_write_room, | |
964ee1de | 1047 | .set_termios = sierra_set_termios, |
964ee1de GKH |
1048 | .tiocmget = sierra_tiocmget, |
1049 | .tiocmset = sierra_tiocmset, | |
1050 | .attach = sierra_startup, | |
7bae0a07 | 1051 | .release = sierra_release, |
f525c05b JH |
1052 | .port_probe = sierra_port_probe, |
1053 | .port_remove = sierra_port_remove, | |
e6929a90 ON |
1054 | .suspend = sierra_suspend, |
1055 | .resume = sierra_resume, | |
964ee1de GKH |
1056 | .read_int_callback = sierra_instat_callback, |
1057 | }; | |
1058 | ||
d860322f AS |
1059 | static struct usb_serial_driver * const serial_drivers[] = { |
1060 | &sierra_device, NULL | |
1061 | }; | |
1062 | ||
68e24113 | 1063 | module_usb_serial_driver(serial_drivers, id_table); |
964ee1de | 1064 | |
033a3fb9 KL |
1065 | MODULE_AUTHOR(DRIVER_AUTHOR); |
1066 | MODULE_DESCRIPTION(DRIVER_DESC); | |
69de51fd | 1067 | MODULE_LICENSE("GPL"); |
033a3fb9 | 1068 | |
4e0fee82 | 1069 | module_param(nmea, bool, S_IRUGO | S_IWUSR); |
228426ed | 1070 | MODULE_PARM_DESC(nmea, "NMEA streaming"); |