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; | |
80cc0fcb | 61 | unsigned int open_ports; |
e6929a90 ON |
62 | }; |
63 | ||
82a24e68 | 64 | static int sierra_set_power_state(struct usb_device *udev, __u16 swiState) |
112225b1 | 65 | { |
64318a52 | 66 | return usb_control_msg(udev, usb_sndctrlpipe(udev, 0), |
228426ed | 67 | SWIMS_USB_REQUEST_SetPower, /* __u8 request */ |
f3564de4 | 68 | USB_TYPE_VENDOR, /* __u8 request type */ |
228426ed KL |
69 | swiState, /* __u16 value */ |
70 | 0, /* __u16 index */ | |
71 | NULL, /* void *data */ | |
72 | 0, /* __u16 size */ | |
73 | USB_CTRL_SET_TIMEOUT); /* int timeout */ | |
112225b1 KL |
74 | } |
75 | ||
228426ed | 76 | static int sierra_vsc_set_nmea(struct usb_device *udev, __u16 enable) |
112225b1 | 77 | { |
64318a52 | 78 | return usb_control_msg(udev, usb_sndctrlpipe(udev, 0), |
228426ed | 79 | SWIMS_USB_REQUEST_SetNmea, /* __u8 request */ |
f3564de4 | 80 | USB_TYPE_VENDOR, /* __u8 request type */ |
228426ed KL |
81 | enable, /* __u16 value */ |
82 | 0x0000, /* __u16 index */ | |
83 | NULL, /* void *data */ | |
84 | 0, /* __u16 size */ | |
85 | USB_CTRL_SET_TIMEOUT); /* int timeout */ | |
228426ed KL |
86 | } |
87 | ||
88 | static int sierra_calc_num_ports(struct usb_serial *serial) | |
89 | { | |
9636b683 EP |
90 | int num_ports = 0; |
91 | u8 ifnum, numendpoints; | |
228426ed | 92 | |
9636b683 EP |
93 | ifnum = serial->interface->cur_altsetting->desc.bInterfaceNumber; |
94 | numendpoints = serial->interface->cur_altsetting->desc.bNumEndpoints; | |
228426ed | 95 | |
9636b683 EP |
96 | /* Dummy interface present on some SKUs should be ignored */ |
97 | if (ifnum == 0x99) | |
98 | num_ports = 0; | |
99 | else if (numendpoints <= 3) | |
100 | num_ports = 1; | |
101 | else | |
102 | num_ports = (numendpoints-1)/2; | |
103 | return num_ports; | |
228426ed KL |
104 | } |
105 | ||
4db2299d EP |
106 | static int is_blacklisted(const u8 ifnum, |
107 | const struct sierra_iface_info *blacklist) | |
108 | { | |
109 | const u8 *info; | |
110 | int i; | |
111 | ||
112 | if (blacklist) { | |
113 | info = blacklist->ifaceinfo; | |
114 | ||
115 | for (i = 0; i < blacklist->infolen; i++) { | |
116 | if (info[i] == ifnum) | |
117 | return 1; | |
118 | } | |
119 | } | |
120 | return 0; | |
121 | } | |
122 | ||
3a2b808e EP |
123 | static int is_himemory(const u8 ifnum, |
124 | const struct sierra_iface_info *himemorylist) | |
125 | { | |
126 | const u8 *info; | |
127 | int i; | |
128 | ||
129 | if (himemorylist) { | |
130 | info = himemorylist->ifaceinfo; | |
131 | ||
132 | for (i=0; i < himemorylist->infolen; i++) { | |
133 | if (info[i] == ifnum) | |
134 | return 1; | |
135 | } | |
136 | } | |
137 | return 0; | |
138 | } | |
139 | ||
7106967e KL |
140 | static int sierra_calc_interface(struct usb_serial *serial) |
141 | { | |
4e0fee82 KL |
142 | int interface; |
143 | struct usb_interface *p_interface; | |
144 | struct usb_host_interface *p_host_interface; | |
7106967e | 145 | |
4e0fee82 KL |
146 | /* Get the interface structure pointer from the serial struct */ |
147 | p_interface = serial->interface; | |
7106967e | 148 | |
4e0fee82 KL |
149 | /* Get a pointer to the host interface structure */ |
150 | p_host_interface = p_interface->cur_altsetting; | |
7106967e | 151 | |
4e0fee82 KL |
152 | /* read the interface descriptor for this active altsetting |
153 | * to find out the interface number we are on | |
154 | */ | |
155 | interface = p_host_interface->desc.bInterfaceNumber; | |
7106967e | 156 | |
4e0fee82 | 157 | return interface; |
7106967e KL |
158 | } |
159 | ||
228426ed KL |
160 | static int sierra_probe(struct usb_serial *serial, |
161 | const struct usb_device_id *id) | |
162 | { | |
163 | int result = 0; | |
112225b1 | 164 | struct usb_device *udev; |
228426ed | 165 | u8 ifnum; |
112225b1 | 166 | |
228426ed | 167 | udev = serial->dev; |
e3173b22 | 168 | ifnum = sierra_calc_interface(serial); |
64318a52 | 169 | |
e3173b22 KL |
170 | /* |
171 | * If this interface supports more than 1 alternate | |
172 | * select the 2nd one | |
173 | */ | |
174 | if (serial->interface->num_altsetting == 2) { | |
175 | dev_dbg(&udev->dev, "Selecting alt setting for interface %d\n", | |
176 | ifnum); | |
177 | /* We know the alternate setting is 1 for the MC8785 */ | |
178 | usb_set_interface(udev, ifnum, 1); | |
179 | } | |
7106967e | 180 | |
4db2299d EP |
181 | /* ifnum could have changed - by calling usb_set_interface */ |
182 | ifnum = sierra_calc_interface(serial); | |
183 | ||
184 | if (is_blacklisted(ifnum, | |
185 | (struct sierra_iface_info *)id->driver_info)) { | |
186 | dev_dbg(&serial->dev->dev, | |
187 | "Ignoring blacklisted interface #%d\n", ifnum); | |
188 | return -ENODEV; | |
189 | } | |
190 | ||
228426ed | 191 | return result; |
112225b1 | 192 | } |
033a3fb9 | 193 | |
3a2b808e EP |
194 | /* interfaces with higher memory requirements */ |
195 | static const u8 hi_memory_typeA_ifaces[] = { 0, 2 }; | |
196 | static const struct sierra_iface_info typeA_interface_list = { | |
197 | .infolen = ARRAY_SIZE(hi_memory_typeA_ifaces), | |
198 | .ifaceinfo = hi_memory_typeA_ifaces, | |
199 | }; | |
200 | ||
201 | static const u8 hi_memory_typeB_ifaces[] = { 3, 4, 5, 6 }; | |
202 | static const struct sierra_iface_info typeB_interface_list = { | |
203 | .infolen = ARRAY_SIZE(hi_memory_typeB_ifaces), | |
204 | .ifaceinfo = hi_memory_typeB_ifaces, | |
205 | }; | |
206 | ||
207 | /* 'blacklist' of interfaces not served by this driver */ | |
749541d1 | 208 | static const u8 direct_ip_non_serial_ifaces[] = { 7, 8, 9, 10, 11, 19, 20 }; |
4db2299d EP |
209 | static const struct sierra_iface_info direct_ip_interface_blacklist = { |
210 | .infolen = ARRAY_SIZE(direct_ip_non_serial_ifaces), | |
211 | .ifaceinfo = direct_ip_non_serial_ifaces, | |
212 | }; | |
213 | ||
7d40d7e8 | 214 | static const struct usb_device_id id_table[] = { |
c5f3d87d EP |
215 | { USB_DEVICE(0x0F3D, 0x0112) }, /* Airprime/Sierra PC 5220 */ |
216 | { USB_DEVICE(0x03F0, 0x1B1D) }, /* HP ev2200 a.k.a MC5720 */ | |
cfbaa393 | 217 | { USB_DEVICE(0x03F0, 0x211D) }, /* HP ev2210 a.k.a MC5725 */ |
c5f3d87d EP |
218 | { USB_DEVICE(0x03F0, 0x1E1D) }, /* HP hs2300 a.k.a MC8775 */ |
219 | ||
e43062dd | 220 | { USB_DEVICE(0x1199, 0x0017) }, /* Sierra Wireless EM5625 */ |
69de51fd | 221 | { USB_DEVICE(0x1199, 0x0018) }, /* Sierra Wireless MC5720 */ |
e43062dd | 222 | { USB_DEVICE(0x1199, 0x0218) }, /* Sierra Wireless MC5720 */ |
69de51fd | 223 | { USB_DEVICE(0x1199, 0x0020) }, /* Sierra Wireless MC5725 */ |
b9e13ac3 | 224 | { USB_DEVICE(0x1199, 0x0220) }, /* Sierra Wireless MC5725 */ |
c5f3d87d EP |
225 | { USB_DEVICE(0x1199, 0x0022) }, /* Sierra Wireless EM5725 */ |
226 | { USB_DEVICE(0x1199, 0x0024) }, /* Sierra Wireless MC5727 */ | |
227 | { USB_DEVICE(0x1199, 0x0224) }, /* Sierra Wireless MC5727 */ | |
69de51fd | 228 | { USB_DEVICE(0x1199, 0x0019) }, /* Sierra Wireless AirCard 595 */ |
e43062dd | 229 | { USB_DEVICE(0x1199, 0x0021) }, /* Sierra Wireless AirCard 597E */ |
c5f3d87d | 230 | { USB_DEVICE(0x1199, 0x0112) }, /* Sierra Wireless AirCard 580 */ |
9454c46a | 231 | { USB_DEVICE(0x1199, 0x0120) }, /* Sierra Wireless USB Dongle 595U */ |
9d72c81d | 232 | { USB_DEVICE(0x1199, 0x0301) }, /* Sierra Wireless USB Dongle 250U */ |
c5f3d87d | 233 | /* Sierra Wireless C597 */ |
4e0fee82 | 234 | { USB_DEVICE_AND_INTERFACE_INFO(0x1199, 0x0023, 0xFF, 0xFF, 0xFF) }, |
c5f3d87d | 235 | /* Sierra Wireless T598 */ |
e3173b22 | 236 | { USB_DEVICE_AND_INTERFACE_INFO(0x1199, 0x0025, 0xFF, 0xFF, 0xFF) }, |
c5f3d87d EP |
237 | { USB_DEVICE(0x1199, 0x0026) }, /* Sierra Wireless T11 */ |
238 | { USB_DEVICE(0x1199, 0x0027) }, /* Sierra Wireless AC402 */ | |
239 | { USB_DEVICE(0x1199, 0x0028) }, /* Sierra Wireless MC5728 */ | |
240 | { USB_DEVICE(0x1199, 0x0029) }, /* Sierra Wireless Device */ | |
9454c46a | 241 | |
69de51fd KL |
242 | { USB_DEVICE(0x1199, 0x6802) }, /* Sierra Wireless MC8755 */ |
243 | { USB_DEVICE(0x1199, 0x6803) }, /* Sierra Wireless MC8765 */ | |
c5f3d87d EP |
244 | { USB_DEVICE(0x1199, 0x6804) }, /* Sierra Wireless MC8755 */ |
245 | { USB_DEVICE(0x1199, 0x6805) }, /* Sierra Wireless MC8765 */ | |
246 | { USB_DEVICE(0x1199, 0x6808) }, /* Sierra Wireless MC8755 */ | |
247 | { USB_DEVICE(0x1199, 0x6809) }, /* Sierra Wireless MC8765 */ | |
9454c46a | 248 | { USB_DEVICE(0x1199, 0x6812) }, /* Sierra Wireless MC8775 & AC 875U */ |
c5f3d87d | 249 | { USB_DEVICE(0x1199, 0x6813) }, /* Sierra Wireless MC8775 */ |
7f170a63 | 250 | { USB_DEVICE(0x1199, 0x6815) }, /* Sierra Wireless MC8775 */ |
c5f3d87d | 251 | { USB_DEVICE(0x1199, 0x6816) }, /* Sierra Wireless MC8775 */ |
69de51fd | 252 | { USB_DEVICE(0x1199, 0x6820) }, /* Sierra Wireless AirCard 875 */ |
7106967e | 253 | { USB_DEVICE(0x1199, 0x6821) }, /* Sierra Wireless AirCard 875U */ |
c5f3d87d | 254 | { USB_DEVICE(0x1199, 0x6822) }, /* Sierra Wireless AirCard 875E */ |
4e0fee82 KL |
255 | { USB_DEVICE(0x1199, 0x6832) }, /* Sierra Wireless MC8780 */ |
256 | { USB_DEVICE(0x1199, 0x6833) }, /* Sierra Wireless MC8781 */ | |
c5f3d87d EP |
257 | { USB_DEVICE(0x1199, 0x6834) }, /* Sierra Wireless MC8780 */ |
258 | { USB_DEVICE(0x1199, 0x6835) }, /* Sierra Wireless MC8781 */ | |
259 | { USB_DEVICE(0x1199, 0x6838) }, /* Sierra Wireless MC8780 */ | |
260 | { USB_DEVICE(0x1199, 0x6839) }, /* Sierra Wireless MC8781 */ | |
b77a5c70 | 261 | { USB_DEVICE(0x1199, 0x683A) }, /* Sierra Wireless MC8785 */ |
e3173b22 | 262 | { USB_DEVICE(0x1199, 0x683B) }, /* Sierra Wireless MC8785 Composite */ |
4db2299d EP |
263 | /* Sierra Wireless MC8790, MC8791, MC8792 Composite */ |
264 | { USB_DEVICE(0x1199, 0x683C) }, | |
265 | { USB_DEVICE(0x1199, 0x683D) }, /* Sierra Wireless MC8791 Composite */ | |
266 | /* Sierra Wireless MC8790, MC8791, MC8792 */ | |
267 | { USB_DEVICE(0x1199, 0x683E) }, | |
9454c46a KL |
268 | { USB_DEVICE(0x1199, 0x6850) }, /* Sierra Wireless AirCard 880 */ |
269 | { USB_DEVICE(0x1199, 0x6851) }, /* Sierra Wireless AirCard 881 */ | |
270 | { USB_DEVICE(0x1199, 0x6852) }, /* Sierra Wireless AirCard 880 E */ | |
271 | { USB_DEVICE(0x1199, 0x6853) }, /* Sierra Wireless AirCard 881 E */ | |
6835b32c | 272 | { USB_DEVICE(0x1199, 0x6855) }, /* Sierra Wireless AirCard 880 U */ |
62aad3ab | 273 | { USB_DEVICE(0x1199, 0x6856) }, /* Sierra Wireless AirCard 881 U */ |
e3173b22 KL |
274 | { USB_DEVICE(0x1199, 0x6859) }, /* Sierra Wireless AirCard 885 E */ |
275 | { USB_DEVICE(0x1199, 0x685A) }, /* Sierra Wireless AirCard 885 E */ | |
276 | /* Sierra Wireless C885 */ | |
277 | { USB_DEVICE_AND_INTERFACE_INFO(0x1199, 0x6880, 0xFF, 0xFF, 0xFF)}, | |
c5f3d87d | 278 | /* Sierra Wireless C888, Air Card 501, USB 303, USB 304 */ |
e3173b22 | 279 | { USB_DEVICE_AND_INTERFACE_INFO(0x1199, 0x6890, 0xFF, 0xFF, 0xFF)}, |
c5f3d87d | 280 | /* Sierra Wireless C22/C33 */ |
73b2c205 | 281 | { USB_DEVICE_AND_INTERFACE_INFO(0x1199, 0x6891, 0xFF, 0xFF, 0xFF)}, |
c5f3d87d | 282 | /* Sierra Wireless HSPA Non-Composite Device */ |
e3173b22 | 283 | { USB_DEVICE_AND_INTERFACE_INFO(0x1199, 0x6892, 0xFF, 0xFF, 0xFF)}, |
c5f3d87d | 284 | { USB_DEVICE(0x1199, 0x6893) }, /* Sierra Wireless Device */ |
4db2299d EP |
285 | { USB_DEVICE(0x1199, 0x68A3), /* Sierra Wireless Direct IP modems */ |
286 | .driver_info = (kernel_ulong_t)&direct_ip_interface_blacklist | |
19a3dd15 TC |
287 | }, |
288 | /* AT&T Direct IP LTE modems */ | |
289 | { USB_DEVICE_AND_INTERFACE_INFO(0x0F3D, 0x68AA, 0xFF, 0xFF, 0xFF), | |
290 | .driver_info = (kernel_ulong_t)&direct_ip_interface_blacklist | |
4db2299d | 291 | }, |
e1dc5157 JT |
292 | { USB_DEVICE(0x0f3d, 0x68A3), /* Airprime/Sierra Wireless Direct IP modems */ |
293 | .driver_info = (kernel_ulong_t)&direct_ip_interface_blacklist | |
294 | }, | |
4db2299d | 295 | |
033a3fb9 KL |
296 | { } |
297 | }; | |
964ee1de | 298 | MODULE_DEVICE_TABLE(usb, id_table); |
033a3fb9 | 299 | |
033a3fb9 | 300 | |
033a3fb9 | 301 | struct sierra_port_private { |
17c23274 GKH |
302 | spinlock_t lock; /* lock the structure */ |
303 | int outstanding_urbs; /* number of out urbs in flight */ | |
e6929a90 ON |
304 | struct usb_anchor active; |
305 | struct usb_anchor delayed; | |
17c23274 | 306 | |
3a2b808e EP |
307 | int num_out_urbs; |
308 | int num_in_urbs; | |
4f4f9c53 | 309 | /* Input endpoints and buffers for this port */ |
3a2b808e | 310 | struct urb *in_urbs[N_IN_URB_HM]; |
033a3fb9 KL |
311 | |
312 | /* Settings for the port */ | |
313 | int rts_state; /* Handshaking pins (outputs) */ | |
314 | int dtr_state; | |
315 | int cts_state; /* Handshaking pins (inputs) */ | |
316 | int dsr_state; | |
317 | int dcd_state; | |
318 | int ri_state; | |
e6929a90 | 319 | unsigned int opened:1; |
033a3fb9 KL |
320 | }; |
321 | ||
335f8514 | 322 | static int sierra_send_setup(struct usb_serial_port *port) |
69de51fd | 323 | { |
964ee1de GKH |
324 | struct usb_serial *serial = port->serial; |
325 | struct sierra_port_private *portdata; | |
228426ed | 326 | __u16 interface = 0; |
335f8514 | 327 | int val = 0; |
3c77d513 EP |
328 | int do_send = 0; |
329 | int retval; | |
033a3fb9 | 330 | |
964ee1de | 331 | portdata = usb_get_serial_port_data(port); |
033a3fb9 | 332 | |
335f8514 AC |
333 | if (portdata->dtr_state) |
334 | val |= 0x01; | |
335 | if (portdata->rts_state) | |
336 | val |= 0x02; | |
337 | ||
338 | /* If composite device then properly report interface */ | |
00b040de | 339 | if (serial->num_ports == 1) { |
335f8514 | 340 | interface = sierra_calc_interface(serial); |
00b040de AC |
341 | /* Control message is sent only to interfaces with |
342 | * interrupt_in endpoints | |
343 | */ | |
344 | if (port->interrupt_in_urb) { | |
345 | /* send control message */ | |
3c77d513 | 346 | do_send = 1; |
00b040de AC |
347 | } |
348 | } | |
335f8514 AC |
349 | |
350 | /* Otherwise the need to do non-composite mapping */ | |
351 | else { | |
352 | if (port->bulk_out_endpointAddress == 2) | |
353 | interface = 0; | |
354 | else if (port->bulk_out_endpointAddress == 4) | |
355 | interface = 1; | |
356 | else if (port->bulk_out_endpointAddress == 5) | |
357 | interface = 2; | |
3c77d513 EP |
358 | |
359 | do_send = 1; | |
00b040de | 360 | } |
3c77d513 EP |
361 | if (!do_send) |
362 | return 0; | |
363 | ||
5b7c1178 ON |
364 | retval = usb_autopm_get_interface(serial->interface); |
365 | if (retval < 0) | |
366 | return retval; | |
367 | ||
3c77d513 EP |
368 | retval = usb_control_msg(serial->dev, usb_rcvctrlpipe(serial->dev, 0), |
369 | 0x22, 0x21, val, interface, NULL, 0, USB_CTRL_SET_TIMEOUT); | |
370 | usb_autopm_put_interface(serial->interface); | |
371 | ||
372 | return retval; | |
69de51fd KL |
373 | } |
374 | ||
95da310e AC |
375 | static void sierra_set_termios(struct tty_struct *tty, |
376 | struct usb_serial_port *port, struct ktermios *old_termios) | |
033a3fb9 | 377 | { |
adc8d746 | 378 | tty_termios_copy_hw(&tty->termios, old_termios); |
335f8514 | 379 | sierra_send_setup(port); |
033a3fb9 KL |
380 | } |
381 | ||
60b33c13 | 382 | static int sierra_tiocmget(struct tty_struct *tty) |
033a3fb9 | 383 | { |
95da310e | 384 | struct usb_serial_port *port = tty->driver_data; |
033a3fb9 KL |
385 | unsigned int value; |
386 | struct sierra_port_private *portdata; | |
387 | ||
388 | portdata = usb_get_serial_port_data(port); | |
389 | ||
390 | value = ((portdata->rts_state) ? TIOCM_RTS : 0) | | |
391 | ((portdata->dtr_state) ? TIOCM_DTR : 0) | | |
392 | ((portdata->cts_state) ? TIOCM_CTS : 0) | | |
393 | ((portdata->dsr_state) ? TIOCM_DSR : 0) | | |
394 | ((portdata->dcd_state) ? TIOCM_CAR : 0) | | |
395 | ((portdata->ri_state) ? TIOCM_RNG : 0); | |
396 | ||
397 | return value; | |
398 | } | |
399 | ||
20b9d177 | 400 | static int sierra_tiocmset(struct tty_struct *tty, |
033a3fb9 KL |
401 | unsigned int set, unsigned int clear) |
402 | { | |
95da310e | 403 | struct usb_serial_port *port = tty->driver_data; |
033a3fb9 KL |
404 | struct sierra_port_private *portdata; |
405 | ||
406 | portdata = usb_get_serial_port_data(port); | |
407 | ||
408 | if (set & TIOCM_RTS) | |
409 | portdata->rts_state = 1; | |
410 | if (set & TIOCM_DTR) | |
411 | portdata->dtr_state = 1; | |
412 | ||
413 | if (clear & TIOCM_RTS) | |
414 | portdata->rts_state = 0; | |
415 | if (clear & TIOCM_DTR) | |
416 | portdata->dtr_state = 0; | |
335f8514 | 417 | return sierra_send_setup(port); |
033a3fb9 KL |
418 | } |
419 | ||
b9a44bc1 EP |
420 | static void sierra_release_urb(struct urb *urb) |
421 | { | |
422 | struct usb_serial_port *port; | |
423 | if (urb) { | |
64318a52 | 424 | port = urb->context; |
b9a44bc1 EP |
425 | kfree(urb->transfer_buffer); |
426 | usb_free_urb(urb); | |
427 | } | |
428 | } | |
429 | ||
17c23274 GKH |
430 | static void sierra_outdat_callback(struct urb *urb) |
431 | { | |
432 | struct usb_serial_port *port = urb->context; | |
433 | struct sierra_port_private *portdata = usb_get_serial_port_data(port); | |
e6929a90 | 434 | struct sierra_intf_private *intfdata; |
17c23274 | 435 | int status = urb->status; |
17c23274 | 436 | |
e6929a90 | 437 | intfdata = port->serial->private; |
17c23274 GKH |
438 | |
439 | /* free up the transfer buffer, as usb_free_urb() does not do this */ | |
440 | kfree(urb->transfer_buffer); | |
e6929a90 | 441 | usb_autopm_put_interface_async(port->serial->interface); |
17c23274 | 442 | if (status) |
7384a922 | 443 | dev_dbg(&port->dev, "%s - nonzero write bulk status " |
5d44b361 | 444 | "received: %d\n", __func__, status); |
17c23274 | 445 | |
e6929a90 | 446 | spin_lock(&portdata->lock); |
17c23274 | 447 | --portdata->outstanding_urbs; |
e6929a90 ON |
448 | spin_unlock(&portdata->lock); |
449 | spin_lock(&intfdata->susp_lock); | |
450 | --intfdata->in_flight; | |
451 | spin_unlock(&intfdata->susp_lock); | |
17c23274 GKH |
452 | |
453 | usb_serial_port_softint(port); | |
454 | } | |
455 | ||
033a3fb9 | 456 | /* Write */ |
95da310e AC |
457 | static int sierra_write(struct tty_struct *tty, struct usb_serial_port *port, |
458 | const unsigned char *buf, int count) | |
033a3fb9 | 459 | { |
a45a1e07 | 460 | struct sierra_port_private *portdata; |
e6929a90 | 461 | struct sierra_intf_private *intfdata; |
17c23274 GKH |
462 | struct usb_serial *serial = port->serial; |
463 | unsigned long flags; | |
464 | unsigned char *buffer; | |
465 | struct urb *urb; | |
40d2ff32 EP |
466 | size_t writesize = min((size_t)count, (size_t)MAX_TRANSFER); |
467 | int retval = 0; | |
468 | ||
469 | /* verify that we actually have some data to write */ | |
470 | if (count == 0) | |
471 | return 0; | |
033a3fb9 KL |
472 | |
473 | portdata = usb_get_serial_port_data(port); | |
e6929a90 | 474 | intfdata = serial->private; |
033a3fb9 | 475 | |
0b10395a | 476 | dev_dbg(&port->dev, "%s: write (%zd bytes)\n", __func__, writesize); |
17c23274 | 477 | spin_lock_irqsave(&portdata->lock, flags); |
40d2ff32 EP |
478 | dev_dbg(&port->dev, "%s - outstanding_urbs: %d\n", __func__, |
479 | portdata->outstanding_urbs); | |
3a2b808e | 480 | if (portdata->outstanding_urbs > portdata->num_out_urbs) { |
17c23274 | 481 | spin_unlock_irqrestore(&portdata->lock, flags); |
7384a922 | 482 | dev_dbg(&port->dev, "%s - write limit hit\n", __func__); |
17c23274 GKH |
483 | return 0; |
484 | } | |
485 | portdata->outstanding_urbs++; | |
40d2ff32 EP |
486 | dev_dbg(&port->dev, "%s - 1, outstanding_urbs: %d\n", __func__, |
487 | portdata->outstanding_urbs); | |
17c23274 GKH |
488 | spin_unlock_irqrestore(&portdata->lock, flags); |
489 | ||
e6929a90 ON |
490 | retval = usb_autopm_get_interface_async(serial->interface); |
491 | if (retval < 0) { | |
492 | spin_lock_irqsave(&portdata->lock, flags); | |
493 | portdata->outstanding_urbs--; | |
494 | spin_unlock_irqrestore(&portdata->lock, flags); | |
495 | goto error_simple; | |
496 | } | |
497 | ||
40d2ff32 | 498 | buffer = kmalloc(writesize, GFP_ATOMIC); |
17c23274 | 499 | if (!buffer) { |
40d2ff32 | 500 | retval = -ENOMEM; |
17c23274 GKH |
501 | goto error_no_buffer; |
502 | } | |
033a3fb9 | 503 | |
17c23274 GKH |
504 | urb = usb_alloc_urb(0, GFP_ATOMIC); |
505 | if (!urb) { | |
40d2ff32 | 506 | retval = -ENOMEM; |
17c23274 GKH |
507 | goto error_no_urb; |
508 | } | |
033a3fb9 | 509 | |
40d2ff32 | 510 | memcpy(buffer, buf, writesize); |
033a3fb9 | 511 | |
59d33f2f | 512 | usb_serial_debug_data(&port->dev, __func__, writesize, buffer); |
17c23274 GKH |
513 | |
514 | usb_fill_bulk_urb(urb, serial->dev, | |
515 | usb_sndbulkpipe(serial->dev, | |
516 | port->bulk_out_endpointAddress), | |
40d2ff32 | 517 | buffer, writesize, sierra_outdat_callback, port); |
17c23274 | 518 | |
238ebd13 EP |
519 | /* Handle the need to send a zero length packet */ |
520 | urb->transfer_flags |= URB_ZERO_PACKET; | |
521 | ||
e6929a90 ON |
522 | spin_lock_irqsave(&intfdata->susp_lock, flags); |
523 | ||
524 | if (intfdata->suspended) { | |
525 | usb_anchor_urb(urb, &portdata->delayed); | |
526 | spin_unlock_irqrestore(&intfdata->susp_lock, flags); | |
527 | goto skip_power; | |
528 | } else { | |
529 | usb_anchor_urb(urb, &portdata->active); | |
530 | } | |
17c23274 | 531 | /* send it down the pipe */ |
40d2ff32 EP |
532 | retval = usb_submit_urb(urb, GFP_ATOMIC); |
533 | if (retval) { | |
e6929a90 ON |
534 | usb_unanchor_urb(urb); |
535 | spin_unlock_irqrestore(&intfdata->susp_lock, flags); | |
17c23274 | 536 | dev_err(&port->dev, "%s - usb_submit_urb(write bulk) failed " |
40d2ff32 | 537 | "with status = %d\n", __func__, retval); |
17c23274 | 538 | goto error; |
e6929a90 ON |
539 | } else { |
540 | intfdata->in_flight++; | |
541 | spin_unlock_irqrestore(&intfdata->susp_lock, flags); | |
033a3fb9 KL |
542 | } |
543 | ||
e6929a90 | 544 | skip_power: |
17c23274 GKH |
545 | /* we are done with this urb, so let the host driver |
546 | * really free it when it is finished with it */ | |
547 | usb_free_urb(urb); | |
548 | ||
40d2ff32 | 549 | return writesize; |
17c23274 GKH |
550 | error: |
551 | usb_free_urb(urb); | |
552 | error_no_urb: | |
553 | kfree(buffer); | |
554 | error_no_buffer: | |
555 | spin_lock_irqsave(&portdata->lock, flags); | |
556 | --portdata->outstanding_urbs; | |
40d2ff32 EP |
557 | dev_dbg(&port->dev, "%s - 2. outstanding_urbs: %d\n", __func__, |
558 | portdata->outstanding_urbs); | |
17c23274 | 559 | spin_unlock_irqrestore(&portdata->lock, flags); |
e6929a90 ON |
560 | usb_autopm_put_interface_async(serial->interface); |
561 | error_simple: | |
40d2ff32 | 562 | return retval; |
033a3fb9 KL |
563 | } |
564 | ||
565 | static void sierra_indat_callback(struct urb *urb) | |
566 | { | |
567 | int err; | |
568 | int endpoint; | |
569 | struct usb_serial_port *port; | |
033a3fb9 | 570 | unsigned char *data = urb->transfer_buffer; |
17dd2215 | 571 | int status = urb->status; |
033a3fb9 | 572 | |
033a3fb9 | 573 | endpoint = usb_pipeendpoint(urb->pipe); |
b0cda8c5 EP |
574 | port = urb->context; |
575 | ||
17dd2215 | 576 | if (status) { |
7384a922 | 577 | dev_dbg(&port->dev, "%s: nonzero status: %d on" |
5d44b361 | 578 | " endpoint %02x\n", __func__, status, endpoint); |
033a3fb9 | 579 | } else { |
033a3fb9 | 580 | if (urb->actual_length) { |
2e124b4a JS |
581 | tty_insert_flip_string(&port->port, data, |
582 | urb->actual_length); | |
583 | tty_flip_buffer_push(&port->port); | |
584 | ||
585 | usb_serial_debug_data(&port->dev, __func__, | |
586 | urb->actual_length, data); | |
b0cda8c5 | 587 | } else { |
7384a922 | 588 | dev_dbg(&port->dev, "%s: empty read urb" |
5d44b361 | 589 | " received\n", __func__); |
033a3fb9 KL |
590 | } |
591 | } | |
b0cda8c5 EP |
592 | |
593 | /* Resubmit urb so we continue receiving */ | |
1f87158e | 594 | if (status != -ESHUTDOWN && status != -EPERM) { |
e6929a90 | 595 | usb_mark_last_busy(port->serial->dev); |
b0cda8c5 | 596 | err = usb_submit_urb(urb, GFP_ATOMIC); |
1f87158e | 597 | if (err && err != -EPERM) |
b0cda8c5 EP |
598 | dev_err(&port->dev, "resubmit read urb failed." |
599 | "(%d)\n", err); | |
600 | } | |
033a3fb9 KL |
601 | } |
602 | ||
033a3fb9 KL |
603 | static void sierra_instat_callback(struct urb *urb) |
604 | { | |
605 | int err; | |
17dd2215 | 606 | int status = urb->status; |
cdc97792 | 607 | struct usb_serial_port *port = urb->context; |
033a3fb9 KL |
608 | struct sierra_port_private *portdata = usb_get_serial_port_data(port); |
609 | struct usb_serial *serial = port->serial; | |
610 | ||
5d44b361 | 611 | dev_dbg(&port->dev, "%s: urb %p port %p has data %p\n", __func__, |
7384a922 | 612 | urb, port, portdata); |
033a3fb9 | 613 | |
17dd2215 | 614 | if (status == 0) { |
033a3fb9 KL |
615 | struct usb_ctrlrequest *req_pkt = |
616 | (struct usb_ctrlrequest *)urb->transfer_buffer; | |
617 | ||
618 | if (!req_pkt) { | |
7384a922 KL |
619 | dev_dbg(&port->dev, "%s: NULL req_pkt\n", |
620 | __func__); | |
033a3fb9 KL |
621 | return; |
622 | } | |
623 | if ((req_pkt->bRequestType == 0xA1) && | |
624 | (req_pkt->bRequest == 0x20)) { | |
625 | int old_dcd_state; | |
626 | unsigned char signals = *((unsigned char *) | |
627 | urb->transfer_buffer + | |
628 | sizeof(struct usb_ctrlrequest)); | |
629 | ||
5d44b361 | 630 | dev_dbg(&port->dev, "%s: signal x%x\n", __func__, |
7384a922 | 631 | signals); |
033a3fb9 KL |
632 | |
633 | old_dcd_state = portdata->dcd_state; | |
634 | portdata->cts_state = 1; | |
635 | portdata->dcd_state = ((signals & 0x01) ? 1 : 0); | |
636 | portdata->dsr_state = ((signals & 0x02) ? 1 : 0); | |
637 | portdata->ri_state = ((signals & 0x08) ? 1 : 0); | |
638 | ||
aa27a094 JS |
639 | if (old_dcd_state && !portdata->dcd_state) |
640 | tty_port_tty_hangup(&port->port, true); | |
033a3fb9 | 641 | } else { |
5d44b361 | 642 | dev_dbg(&port->dev, "%s: type %x req %x\n", |
7384a922 KL |
643 | __func__, req_pkt->bRequestType, |
644 | req_pkt->bRequest); | |
033a3fb9 KL |
645 | } |
646 | } else | |
5d44b361 | 647 | dev_dbg(&port->dev, "%s: error %d\n", __func__, status); |
033a3fb9 KL |
648 | |
649 | /* Resubmit urb so we continue receiving IRQ data */ | |
1f87158e | 650 | if (status != -ESHUTDOWN && status != -ENOENT) { |
e6929a90 | 651 | usb_mark_last_busy(serial->dev); |
033a3fb9 | 652 | err = usb_submit_urb(urb, GFP_ATOMIC); |
1f87158e | 653 | if (err && err != -EPERM) |
c76a23da EP |
654 | dev_err(&port->dev, "%s: resubmit intr urb " |
655 | "failed. (%d)\n", __func__, err); | |
033a3fb9 KL |
656 | } |
657 | } | |
658 | ||
95da310e | 659 | static int sierra_write_room(struct tty_struct *tty) |
033a3fb9 | 660 | { |
95da310e | 661 | struct usb_serial_port *port = tty->driver_data; |
17c23274 GKH |
662 | struct sierra_port_private *portdata = usb_get_serial_port_data(port); |
663 | unsigned long flags; | |
033a3fb9 | 664 | |
17c23274 GKH |
665 | /* try to give a good number back based on if we have any free urbs at |
666 | * this point in time */ | |
667 | spin_lock_irqsave(&portdata->lock, flags); | |
3a2b808e | 668 | if (portdata->outstanding_urbs > (portdata->num_out_urbs * 2) / 3) { |
17c23274 | 669 | spin_unlock_irqrestore(&portdata->lock, flags); |
7384a922 | 670 | dev_dbg(&port->dev, "%s - write limit hit\n", __func__); |
17c23274 | 671 | return 0; |
033a3fb9 | 672 | } |
17c23274 | 673 | spin_unlock_irqrestore(&portdata->lock, flags); |
033a3fb9 | 674 | |
17c23274 | 675 | return 2048; |
033a3fb9 KL |
676 | } |
677 | ||
93670599 JH |
678 | static int sierra_chars_in_buffer(struct tty_struct *tty) |
679 | { | |
680 | struct usb_serial_port *port = tty->driver_data; | |
681 | struct sierra_port_private *portdata = usb_get_serial_port_data(port); | |
682 | unsigned long flags; | |
683 | int chars; | |
684 | ||
685 | /* NOTE: This overcounts somewhat. */ | |
686 | spin_lock_irqsave(&portdata->lock, flags); | |
687 | chars = portdata->outstanding_urbs * MAX_TRANSFER; | |
688 | spin_unlock_irqrestore(&portdata->lock, flags); | |
689 | ||
690 | dev_dbg(&port->dev, "%s - %d\n", __func__, chars); | |
691 | ||
692 | return chars; | |
693 | } | |
694 | ||
b9a44bc1 | 695 | static void sierra_stop_rx_urbs(struct usb_serial_port *port) |
033a3fb9 | 696 | { |
9e85c5f6 | 697 | int i; |
b9a44bc1 | 698 | struct sierra_port_private *portdata = usb_get_serial_port_data(port); |
033a3fb9 | 699 | |
3a2b808e | 700 | for (i = 0; i < portdata->num_in_urbs; i++) |
b9a44bc1 | 701 | usb_kill_urb(portdata->in_urbs[i]); |
033a3fb9 | 702 | |
b9a44bc1 EP |
703 | usb_kill_urb(port->interrupt_in_urb); |
704 | } | |
033a3fb9 | 705 | |
b9a44bc1 EP |
706 | static int sierra_submit_rx_urbs(struct usb_serial_port *port, gfp_t mem_flags) |
707 | { | |
708 | int ok_cnt; | |
709 | int err = -EINVAL; | |
710 | int i; | |
711 | struct urb *urb; | |
712 | struct sierra_port_private *portdata = usb_get_serial_port_data(port); | |
033a3fb9 | 713 | |
b9a44bc1 | 714 | ok_cnt = 0; |
3a2b808e | 715 | for (i = 0; i < portdata->num_in_urbs; i++) { |
033a3fb9 | 716 | urb = portdata->in_urbs[i]; |
9e85c5f6 | 717 | if (!urb) |
033a3fb9 | 718 | continue; |
b9a44bc1 EP |
719 | err = usb_submit_urb(urb, mem_flags); |
720 | if (err) { | |
721 | dev_err(&port->dev, "%s: submit urb failed: %d\n", | |
722 | __func__, err); | |
723 | } else { | |
724 | ok_cnt++; | |
033a3fb9 | 725 | } |
b9a44bc1 | 726 | } |
033a3fb9 | 727 | |
b9a44bc1 EP |
728 | if (ok_cnt && port->interrupt_in_urb) { |
729 | err = usb_submit_urb(port->interrupt_in_urb, mem_flags); | |
730 | if (err) { | |
731 | dev_err(&port->dev, "%s: submit intr urb failed: %d\n", | |
732 | __func__, err); | |
033a3fb9 KL |
733 | } |
734 | } | |
735 | ||
b9a44bc1 EP |
736 | if (ok_cnt > 0) /* at least one rx urb submitted */ |
737 | return 0; | |
738 | else | |
739 | return err; | |
740 | } | |
741 | ||
742 | static struct urb *sierra_setup_urb(struct usb_serial *serial, int endpoint, | |
743 | int dir, void *ctx, int len, | |
744 | gfp_t mem_flags, | |
745 | usb_complete_t callback) | |
746 | { | |
747 | struct urb *urb; | |
748 | u8 *buf; | |
749 | ||
750 | if (endpoint == -1) | |
751 | return NULL; | |
033a3fb9 | 752 | |
b9a44bc1 | 753 | urb = usb_alloc_urb(0, mem_flags); |
10c642d0 | 754 | if (!urb) |
b9a44bc1 | 755 | return NULL; |
b9a44bc1 EP |
756 | |
757 | buf = kmalloc(len, mem_flags); | |
758 | if (buf) { | |
759 | /* Fill URB using supplied data */ | |
760 | usb_fill_bulk_urb(urb, serial->dev, | |
761 | usb_sndbulkpipe(serial->dev, endpoint) | dir, | |
762 | buf, len, callback, ctx); | |
763 | ||
b9a44bc1 EP |
764 | dev_dbg(&serial->dev->dev, "%s %c u : %p d:%p\n", __func__, |
765 | dir == USB_DIR_IN ? 'i' : 'o', urb, buf); | |
766 | } else { | |
b9a44bc1 EP |
767 | sierra_release_urb(urb); |
768 | urb = NULL; | |
769 | } | |
770 | ||
771 | return urb; | |
033a3fb9 KL |
772 | } |
773 | ||
b9a44bc1 | 774 | static void sierra_close(struct usb_serial_port *port) |
033a3fb9 | 775 | { |
b9a44bc1 | 776 | int i; |
033a3fb9 KL |
777 | struct usb_serial *serial = port->serial; |
778 | struct sierra_port_private *portdata; | |
e6929a90 | 779 | struct sierra_intf_private *intfdata = port->serial->private; |
014333f7 | 780 | struct urb *urb; |
e6929a90 | 781 | |
033a3fb9 | 782 | portdata = usb_get_serial_port_data(port); |
b9a44bc1 EP |
783 | |
784 | portdata->rts_state = 0; | |
785 | portdata->dtr_state = 0; | |
033a3fb9 | 786 | |
9c210bfa JH |
787 | mutex_lock(&serial->disc_mutex); |
788 | if (!serial->disconnected) { | |
9c210bfa JH |
789 | /* odd error handling due to pm counters */ |
790 | if (!usb_autopm_get_interface(serial->interface)) | |
791 | sierra_send_setup(port); | |
792 | else | |
793 | usb_autopm_get_interface_no_resume(serial->interface); | |
794 | ||
795 | } | |
796 | mutex_unlock(&serial->disc_mutex); | |
797 | spin_lock_irq(&intfdata->susp_lock); | |
798 | portdata->opened = 0; | |
80cc0fcb JH |
799 | if (--intfdata->open_ports == 0) |
800 | serial->interface->needs_remote_wakeup = 0; | |
9c210bfa JH |
801 | spin_unlock_irq(&intfdata->susp_lock); |
802 | ||
014333f7 JH |
803 | for (;;) { |
804 | urb = usb_get_from_anchor(&portdata->delayed); | |
805 | if (!urb) | |
806 | break; | |
807 | kfree(urb->transfer_buffer); | |
808 | usb_free_urb(urb); | |
809 | usb_autopm_put_interface_async(serial->interface); | |
810 | spin_lock(&portdata->lock); | |
811 | portdata->outstanding_urbs--; | |
812 | spin_unlock(&portdata->lock); | |
813 | } | |
814 | ||
9c210bfa | 815 | sierra_stop_rx_urbs(port); |
c9d838a8 JH |
816 | usb_kill_anchored_urbs(&portdata->active); |
817 | ||
9c210bfa JH |
818 | for (i = 0; i < portdata->num_in_urbs; i++) { |
819 | sierra_release_urb(portdata->in_urbs[i]); | |
820 | portdata->in_urbs[i] = NULL; | |
335f8514 AC |
821 | } |
822 | } | |
823 | ||
a509a7e4 | 824 | static int sierra_open(struct tty_struct *tty, struct usb_serial_port *port) |
335f8514 | 825 | { |
b9a44bc1 EP |
826 | struct sierra_port_private *portdata; |
827 | struct usb_serial *serial = port->serial; | |
e6929a90 | 828 | struct sierra_intf_private *intfdata = serial->private; |
335f8514 | 829 | int i; |
b9a44bc1 EP |
830 | int err; |
831 | int endpoint; | |
832 | struct urb *urb; | |
833 | ||
834 | portdata = usb_get_serial_port_data(port); | |
835 | ||
b9a44bc1 EP |
836 | /* Set some sane defaults */ |
837 | portdata->rts_state = 1; | |
838 | portdata->dtr_state = 1; | |
839 | ||
840 | ||
841 | endpoint = port->bulk_in_endpointAddress; | |
3a2b808e | 842 | for (i = 0; i < portdata->num_in_urbs; i++) { |
b9a44bc1 EP |
843 | urb = sierra_setup_urb(serial, endpoint, USB_DIR_IN, port, |
844 | IN_BUFLEN, GFP_KERNEL, | |
845 | sierra_indat_callback); | |
846 | portdata->in_urbs[i] = urb; | |
847 | } | |
848 | /* clear halt condition */ | |
849 | usb_clear_halt(serial->dev, | |
850 | usb_sndbulkpipe(serial->dev, endpoint) | USB_DIR_IN); | |
851 | ||
852 | err = sierra_submit_rx_urbs(port, GFP_KERNEL); | |
353fe198 JH |
853 | if (err) |
854 | goto err_submit; | |
855 | ||
b9a44bc1 EP |
856 | sierra_send_setup(port); |
857 | ||
e6929a90 ON |
858 | spin_lock_irq(&intfdata->susp_lock); |
859 | portdata->opened = 1; | |
80cc0fcb JH |
860 | if (++intfdata->open_ports == 1) |
861 | serial->interface->needs_remote_wakeup = 1; | |
e6929a90 ON |
862 | spin_unlock_irq(&intfdata->susp_lock); |
863 | usb_autopm_put_interface(serial->interface); | |
864 | ||
b9a44bc1 | 865 | return 0; |
353fe198 JH |
866 | |
867 | err_submit: | |
868 | sierra_stop_rx_urbs(port); | |
869 | ||
870 | for (i = 0; i < portdata->num_in_urbs; i++) { | |
871 | sierra_release_urb(portdata->in_urbs[i]); | |
872 | portdata->in_urbs[i] = NULL; | |
873 | } | |
874 | ||
875 | return err; | |
b9a44bc1 EP |
876 | } |
877 | ||
878 | ||
879 | static void sierra_dtr_rts(struct usb_serial_port *port, int on) | |
880 | { | |
335f8514 | 881 | struct sierra_port_private *portdata; |
033a3fb9 | 882 | |
335f8514 | 883 | portdata = usb_get_serial_port_data(port); |
b9a44bc1 EP |
884 | portdata->rts_state = on; |
885 | portdata->dtr_state = on; | |
335f8514 | 886 | |
b2ca6990 | 887 | sierra_send_setup(port); |
033a3fb9 KL |
888 | } |
889 | ||
033a3fb9 KL |
890 | static int sierra_startup(struct usb_serial *serial) |
891 | { | |
084817d7 | 892 | struct sierra_intf_private *intfdata; |
033a3fb9 | 893 | |
084817d7 JH |
894 | intfdata = kzalloc(sizeof(*intfdata), GFP_KERNEL); |
895 | if (!intfdata) | |
896 | return -ENOMEM; | |
897 | ||
898 | spin_lock_init(&intfdata->susp_lock); | |
899 | ||
900 | usb_set_serial_data(serial, intfdata); | |
901 | ||
228426ed | 902 | /* Set Device mode to D0 */ |
112225b1 KL |
903 | sierra_set_power_state(serial->dev, 0x0000); |
904 | ||
228426ed KL |
905 | /* Check NMEA and set */ |
906 | if (nmea) | |
907 | sierra_vsc_set_nmea(serial->dev, 1); | |
908 | ||
f525c05b JH |
909 | return 0; |
910 | } | |
911 | ||
912 | static void sierra_release(struct usb_serial *serial) | |
913 | { | |
914 | struct sierra_intf_private *intfdata; | |
915 | ||
916 | intfdata = usb_get_serial_data(serial); | |
917 | kfree(intfdata); | |
918 | } | |
919 | ||
920 | static int sierra_port_probe(struct usb_serial_port *port) | |
921 | { | |
922 | struct usb_serial *serial = port->serial; | |
923 | struct sierra_port_private *portdata; | |
924 | const struct sierra_iface_info *himemoryp; | |
925 | u8 ifnum; | |
926 | ||
927 | portdata = kzalloc(sizeof(*portdata), GFP_KERNEL); | |
928 | if (!portdata) | |
929 | return -ENOMEM; | |
930 | ||
931 | spin_lock_init(&portdata->lock); | |
932 | init_usb_anchor(&portdata->active); | |
933 | init_usb_anchor(&portdata->delayed); | |
934 | ||
935 | /* Assume low memory requirements */ | |
936 | portdata->num_out_urbs = N_OUT_URB; | |
937 | portdata->num_in_urbs = N_IN_URB; | |
938 | ||
939 | /* Determine actual memory requirements */ | |
940 | if (serial->num_ports == 1) { | |
941 | /* Get interface number for composite device */ | |
942 | ifnum = sierra_calc_interface(serial); | |
943 | himemoryp = &typeB_interface_list; | |
944 | } else { | |
945 | /* This is really the usb-serial port number of the interface | |
946 | * rather than the interface number. | |
947 | */ | |
1143832e | 948 | ifnum = port->port_number; |
f525c05b | 949 | himemoryp = &typeA_interface_list; |
033a3fb9 KL |
950 | } |
951 | ||
f525c05b JH |
952 | if (is_himemory(ifnum, himemoryp)) { |
953 | portdata->num_out_urbs = N_OUT_URB_HM; | |
954 | portdata->num_in_urbs = N_IN_URB_HM; | |
7e41f9bc JH |
955 | } |
956 | ||
f525c05b JH |
957 | dev_dbg(&port->dev, |
958 | "Memory usage (urbs) interface #%d, in=%d, out=%d\n", | |
959 | ifnum, portdata->num_in_urbs, portdata->num_out_urbs); | |
960 | ||
961 | usb_set_serial_port_data(port, portdata); | |
962 | ||
963 | return 0; | |
033a3fb9 KL |
964 | } |
965 | ||
f525c05b | 966 | static int sierra_port_remove(struct usb_serial_port *port) |
033a3fb9 | 967 | { |
033a3fb9 KL |
968 | struct sierra_port_private *portdata; |
969 | ||
f525c05b | 970 | portdata = usb_get_serial_port_data(port); |
8452727d | 971 | usb_set_serial_port_data(port, NULL); |
f525c05b JH |
972 | kfree(portdata); |
973 | ||
974 | return 0; | |
033a3fb9 KL |
975 | } |
976 | ||
cd604513 | 977 | #ifdef CONFIG_PM |
e6929a90 ON |
978 | static void stop_read_write_urbs(struct usb_serial *serial) |
979 | { | |
b64dc0a5 | 980 | int i; |
e6929a90 ON |
981 | struct usb_serial_port *port; |
982 | struct sierra_port_private *portdata; | |
983 | ||
984 | /* Stop reading/writing urbs */ | |
985 | for (i = 0; i < serial->num_ports; ++i) { | |
986 | port = serial->port[i]; | |
987 | portdata = usb_get_serial_port_data(port); | |
8452727d JH |
988 | if (!portdata) |
989 | continue; | |
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 | ||
5b1b0b81 | 1000 | if (PMSG_IS_AUTO(message)) { |
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 | ||
8452727d JH |
1032 | if (!portdata) |
1033 | continue; | |
1034 | ||
e6929a90 ON |
1035 | while ((urb = usb_get_from_anchor(&portdata->delayed))) { |
1036 | usb_anchor_urb(urb, &portdata->active); | |
1037 | intfdata->in_flight++; | |
1038 | err = usb_submit_urb(urb, GFP_ATOMIC); | |
1039 | if (err < 0) { | |
1040 | intfdata->in_flight--; | |
1041 | usb_unanchor_urb(urb); | |
7fdd26a0 JH |
1042 | kfree(urb->transfer_buffer); |
1043 | usb_free_urb(urb); | |
1044 | spin_lock(&portdata->lock); | |
1045 | portdata->outstanding_urbs--; | |
1046 | spin_unlock(&portdata->lock); | |
1047 | continue; | |
e6929a90 ON |
1048 | } |
1049 | } | |
1050 | ||
1051 | if (portdata->opened) { | |
1052 | err = sierra_submit_rx_urbs(port, GFP_ATOMIC); | |
1053 | if (err) | |
1054 | ec++; | |
1055 | } | |
1056 | } | |
1057 | intfdata->suspended = 0; | |
1058 | spin_unlock_irq(&intfdata->susp_lock); | |
1059 | ||
1060 | return ec ? -EIO : 0; | |
1061 | } | |
7650cd96 | 1062 | |
cd604513 AM |
1063 | #else |
1064 | #define sierra_suspend NULL | |
1065 | #define sierra_resume NULL | |
1066 | #endif | |
e6929a90 | 1067 | |
228426ed | 1068 | static struct usb_serial_driver sierra_device = { |
964ee1de GKH |
1069 | .driver = { |
1070 | .owner = THIS_MODULE, | |
4e0fee82 | 1071 | .name = "sierra", |
964ee1de | 1072 | }, |
228426ed KL |
1073 | .description = "Sierra USB modem", |
1074 | .id_table = id_table, | |
228426ed KL |
1075 | .calc_num_ports = sierra_calc_num_ports, |
1076 | .probe = sierra_probe, | |
964ee1de GKH |
1077 | .open = sierra_open, |
1078 | .close = sierra_close, | |
335f8514 | 1079 | .dtr_rts = sierra_dtr_rts, |
964ee1de GKH |
1080 | .write = sierra_write, |
1081 | .write_room = sierra_write_room, | |
93670599 | 1082 | .chars_in_buffer = sierra_chars_in_buffer, |
964ee1de | 1083 | .set_termios = sierra_set_termios, |
964ee1de GKH |
1084 | .tiocmget = sierra_tiocmget, |
1085 | .tiocmset = sierra_tiocmset, | |
1086 | .attach = sierra_startup, | |
7bae0a07 | 1087 | .release = sierra_release, |
f525c05b JH |
1088 | .port_probe = sierra_port_probe, |
1089 | .port_remove = sierra_port_remove, | |
e6929a90 ON |
1090 | .suspend = sierra_suspend, |
1091 | .resume = sierra_resume, | |
964ee1de GKH |
1092 | .read_int_callback = sierra_instat_callback, |
1093 | }; | |
1094 | ||
d860322f AS |
1095 | static struct usb_serial_driver * const serial_drivers[] = { |
1096 | &sierra_device, NULL | |
1097 | }; | |
1098 | ||
68e24113 | 1099 | module_usb_serial_driver(serial_drivers, id_table); |
964ee1de | 1100 | |
033a3fb9 KL |
1101 | MODULE_AUTHOR(DRIVER_AUTHOR); |
1102 | MODULE_DESCRIPTION(DRIVER_DESC); | |
69de51fd | 1103 | MODULE_LICENSE("GPL"); |
033a3fb9 | 1104 | |
4e0fee82 | 1105 | module_param(nmea, bool, S_IRUGO | S_IWUSR); |
228426ed | 1106 | MODULE_PARM_DESC(nmea, "NMEA streaming"); |