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 */ |
049255f5 BM |
285 | /* Sierra Wireless Direct IP modems */ |
286 | { USB_DEVICE_AND_INTERFACE_INFO(0x1199, 0x68A3, 0xFF, 0xFF, 0xFF), | |
4db2299d | 287 | .driver_info = (kernel_ulong_t)&direct_ip_interface_blacklist |
19a3dd15 | 288 | }, |
5b3da692 BM |
289 | { USB_DEVICE_AND_INTERFACE_INFO(0x1199, 0x68AA, 0xFF, 0xFF, 0xFF), |
290 | .driver_info = (kernel_ulong_t)&direct_ip_interface_blacklist | |
291 | }, | |
74472233 | 292 | { USB_DEVICE(0x1199, 0x68AB) }, /* Sierra Wireless AR8550 */ |
19a3dd15 TC |
293 | /* AT&T Direct IP LTE modems */ |
294 | { USB_DEVICE_AND_INTERFACE_INFO(0x0F3D, 0x68AA, 0xFF, 0xFF, 0xFF), | |
295 | .driver_info = (kernel_ulong_t)&direct_ip_interface_blacklist | |
4db2299d | 296 | }, |
049255f5 BM |
297 | /* Airprime/Sierra Wireless Direct IP modems */ |
298 | { USB_DEVICE_AND_INTERFACE_INFO(0x0F3D, 0x68A3, 0xFF, 0xFF, 0xFF), | |
e1dc5157 JT |
299 | .driver_info = (kernel_ulong_t)&direct_ip_interface_blacklist |
300 | }, | |
4db2299d | 301 | |
033a3fb9 KL |
302 | { } |
303 | }; | |
964ee1de | 304 | MODULE_DEVICE_TABLE(usb, id_table); |
033a3fb9 | 305 | |
033a3fb9 | 306 | |
033a3fb9 | 307 | struct sierra_port_private { |
17c23274 GKH |
308 | spinlock_t lock; /* lock the structure */ |
309 | int outstanding_urbs; /* number of out urbs in flight */ | |
e6929a90 ON |
310 | struct usb_anchor active; |
311 | struct usb_anchor delayed; | |
17c23274 | 312 | |
3a2b808e EP |
313 | int num_out_urbs; |
314 | int num_in_urbs; | |
4f4f9c53 | 315 | /* Input endpoints and buffers for this port */ |
3a2b808e | 316 | struct urb *in_urbs[N_IN_URB_HM]; |
033a3fb9 KL |
317 | |
318 | /* Settings for the port */ | |
319 | int rts_state; /* Handshaking pins (outputs) */ | |
320 | int dtr_state; | |
321 | int cts_state; /* Handshaking pins (inputs) */ | |
322 | int dsr_state; | |
323 | int dcd_state; | |
324 | int ri_state; | |
033a3fb9 KL |
325 | }; |
326 | ||
335f8514 | 327 | static int sierra_send_setup(struct usb_serial_port *port) |
69de51fd | 328 | { |
964ee1de GKH |
329 | struct usb_serial *serial = port->serial; |
330 | struct sierra_port_private *portdata; | |
228426ed | 331 | __u16 interface = 0; |
335f8514 | 332 | int val = 0; |
3c77d513 EP |
333 | int do_send = 0; |
334 | int retval; | |
033a3fb9 | 335 | |
964ee1de | 336 | portdata = usb_get_serial_port_data(port); |
033a3fb9 | 337 | |
335f8514 AC |
338 | if (portdata->dtr_state) |
339 | val |= 0x01; | |
340 | if (portdata->rts_state) | |
341 | val |= 0x02; | |
342 | ||
343 | /* If composite device then properly report interface */ | |
00b040de | 344 | if (serial->num_ports == 1) { |
335f8514 | 345 | interface = sierra_calc_interface(serial); |
00b040de AC |
346 | /* Control message is sent only to interfaces with |
347 | * interrupt_in endpoints | |
348 | */ | |
349 | if (port->interrupt_in_urb) { | |
350 | /* send control message */ | |
3c77d513 | 351 | do_send = 1; |
00b040de AC |
352 | } |
353 | } | |
335f8514 AC |
354 | |
355 | /* Otherwise the need to do non-composite mapping */ | |
356 | else { | |
357 | if (port->bulk_out_endpointAddress == 2) | |
358 | interface = 0; | |
359 | else if (port->bulk_out_endpointAddress == 4) | |
360 | interface = 1; | |
361 | else if (port->bulk_out_endpointAddress == 5) | |
362 | interface = 2; | |
3c77d513 EP |
363 | |
364 | do_send = 1; | |
00b040de | 365 | } |
3c77d513 EP |
366 | if (!do_send) |
367 | return 0; | |
368 | ||
5b7c1178 ON |
369 | retval = usb_autopm_get_interface(serial->interface); |
370 | if (retval < 0) | |
371 | return retval; | |
372 | ||
d3048898 | 373 | retval = usb_control_msg(serial->dev, usb_sndctrlpipe(serial->dev, 0), |
3c77d513 EP |
374 | 0x22, 0x21, val, interface, NULL, 0, USB_CTRL_SET_TIMEOUT); |
375 | usb_autopm_put_interface(serial->interface); | |
376 | ||
377 | return retval; | |
69de51fd KL |
378 | } |
379 | ||
60b33c13 | 380 | static int sierra_tiocmget(struct tty_struct *tty) |
033a3fb9 | 381 | { |
95da310e | 382 | struct usb_serial_port *port = tty->driver_data; |
033a3fb9 KL |
383 | unsigned int value; |
384 | struct sierra_port_private *portdata; | |
385 | ||
386 | portdata = usb_get_serial_port_data(port); | |
387 | ||
388 | value = ((portdata->rts_state) ? TIOCM_RTS : 0) | | |
389 | ((portdata->dtr_state) ? TIOCM_DTR : 0) | | |
390 | ((portdata->cts_state) ? TIOCM_CTS : 0) | | |
391 | ((portdata->dsr_state) ? TIOCM_DSR : 0) | | |
392 | ((portdata->dcd_state) ? TIOCM_CAR : 0) | | |
393 | ((portdata->ri_state) ? TIOCM_RNG : 0); | |
394 | ||
395 | return value; | |
396 | } | |
397 | ||
20b9d177 | 398 | static int sierra_tiocmset(struct tty_struct *tty, |
033a3fb9 KL |
399 | unsigned int set, unsigned int clear) |
400 | { | |
95da310e | 401 | struct usb_serial_port *port = tty->driver_data; |
033a3fb9 KL |
402 | struct sierra_port_private *portdata; |
403 | ||
404 | portdata = usb_get_serial_port_data(port); | |
405 | ||
406 | if (set & TIOCM_RTS) | |
407 | portdata->rts_state = 1; | |
408 | if (set & TIOCM_DTR) | |
409 | portdata->dtr_state = 1; | |
410 | ||
411 | if (clear & TIOCM_RTS) | |
412 | portdata->rts_state = 0; | |
413 | if (clear & TIOCM_DTR) | |
414 | portdata->dtr_state = 0; | |
335f8514 | 415 | return sierra_send_setup(port); |
033a3fb9 KL |
416 | } |
417 | ||
b9a44bc1 EP |
418 | static void sierra_release_urb(struct urb *urb) |
419 | { | |
b9a44bc1 | 420 | if (urb) { |
b9a44bc1 EP |
421 | kfree(urb->transfer_buffer); |
422 | usb_free_urb(urb); | |
423 | } | |
424 | } | |
425 | ||
17c23274 GKH |
426 | static void sierra_outdat_callback(struct urb *urb) |
427 | { | |
428 | struct usb_serial_port *port = urb->context; | |
429 | struct sierra_port_private *portdata = usb_get_serial_port_data(port); | |
e6929a90 | 430 | struct sierra_intf_private *intfdata; |
17c23274 | 431 | int status = urb->status; |
17c23274 | 432 | |
7c80782e | 433 | intfdata = usb_get_serial_data(port->serial); |
17c23274 GKH |
434 | |
435 | /* free up the transfer buffer, as usb_free_urb() does not do this */ | |
436 | kfree(urb->transfer_buffer); | |
e6929a90 | 437 | usb_autopm_put_interface_async(port->serial->interface); |
17c23274 | 438 | if (status) |
7384a922 | 439 | dev_dbg(&port->dev, "%s - nonzero write bulk status " |
5d44b361 | 440 | "received: %d\n", __func__, status); |
17c23274 | 441 | |
e6929a90 | 442 | spin_lock(&portdata->lock); |
17c23274 | 443 | --portdata->outstanding_urbs; |
e6929a90 ON |
444 | spin_unlock(&portdata->lock); |
445 | spin_lock(&intfdata->susp_lock); | |
446 | --intfdata->in_flight; | |
447 | spin_unlock(&intfdata->susp_lock); | |
17c23274 GKH |
448 | |
449 | usb_serial_port_softint(port); | |
450 | } | |
451 | ||
033a3fb9 | 452 | /* Write */ |
95da310e AC |
453 | static int sierra_write(struct tty_struct *tty, struct usb_serial_port *port, |
454 | const unsigned char *buf, int count) | |
033a3fb9 | 455 | { |
a45a1e07 | 456 | struct sierra_port_private *portdata; |
e6929a90 | 457 | struct sierra_intf_private *intfdata; |
17c23274 GKH |
458 | struct usb_serial *serial = port->serial; |
459 | unsigned long flags; | |
460 | unsigned char *buffer; | |
461 | struct urb *urb; | |
40d2ff32 EP |
462 | size_t writesize = min((size_t)count, (size_t)MAX_TRANSFER); |
463 | int retval = 0; | |
464 | ||
465 | /* verify that we actually have some data to write */ | |
466 | if (count == 0) | |
467 | return 0; | |
033a3fb9 KL |
468 | |
469 | portdata = usb_get_serial_port_data(port); | |
7c80782e | 470 | intfdata = usb_get_serial_data(serial); |
033a3fb9 | 471 | |
0b10395a | 472 | dev_dbg(&port->dev, "%s: write (%zd bytes)\n", __func__, writesize); |
17c23274 | 473 | spin_lock_irqsave(&portdata->lock, flags); |
40d2ff32 EP |
474 | dev_dbg(&port->dev, "%s - outstanding_urbs: %d\n", __func__, |
475 | portdata->outstanding_urbs); | |
3a2b808e | 476 | if (portdata->outstanding_urbs > portdata->num_out_urbs) { |
17c23274 | 477 | spin_unlock_irqrestore(&portdata->lock, flags); |
7384a922 | 478 | dev_dbg(&port->dev, "%s - write limit hit\n", __func__); |
17c23274 GKH |
479 | return 0; |
480 | } | |
481 | portdata->outstanding_urbs++; | |
40d2ff32 EP |
482 | dev_dbg(&port->dev, "%s - 1, outstanding_urbs: %d\n", __func__, |
483 | portdata->outstanding_urbs); | |
17c23274 GKH |
484 | spin_unlock_irqrestore(&portdata->lock, flags); |
485 | ||
e6929a90 ON |
486 | retval = usb_autopm_get_interface_async(serial->interface); |
487 | if (retval < 0) { | |
488 | spin_lock_irqsave(&portdata->lock, flags); | |
489 | portdata->outstanding_urbs--; | |
490 | spin_unlock_irqrestore(&portdata->lock, flags); | |
491 | goto error_simple; | |
492 | } | |
493 | ||
40d2ff32 | 494 | buffer = kmalloc(writesize, GFP_ATOMIC); |
17c23274 | 495 | if (!buffer) { |
40d2ff32 | 496 | retval = -ENOMEM; |
17c23274 GKH |
497 | goto error_no_buffer; |
498 | } | |
033a3fb9 | 499 | |
17c23274 GKH |
500 | urb = usb_alloc_urb(0, GFP_ATOMIC); |
501 | if (!urb) { | |
40d2ff32 | 502 | retval = -ENOMEM; |
17c23274 GKH |
503 | goto error_no_urb; |
504 | } | |
033a3fb9 | 505 | |
40d2ff32 | 506 | memcpy(buffer, buf, writesize); |
033a3fb9 | 507 | |
59d33f2f | 508 | usb_serial_debug_data(&port->dev, __func__, writesize, buffer); |
17c23274 GKH |
509 | |
510 | usb_fill_bulk_urb(urb, serial->dev, | |
511 | usb_sndbulkpipe(serial->dev, | |
512 | port->bulk_out_endpointAddress), | |
40d2ff32 | 513 | buffer, writesize, sierra_outdat_callback, port); |
17c23274 | 514 | |
238ebd13 EP |
515 | /* Handle the need to send a zero length packet */ |
516 | urb->transfer_flags |= URB_ZERO_PACKET; | |
517 | ||
e6929a90 ON |
518 | spin_lock_irqsave(&intfdata->susp_lock, flags); |
519 | ||
520 | if (intfdata->suspended) { | |
521 | usb_anchor_urb(urb, &portdata->delayed); | |
522 | spin_unlock_irqrestore(&intfdata->susp_lock, flags); | |
523 | goto skip_power; | |
524 | } else { | |
525 | usb_anchor_urb(urb, &portdata->active); | |
526 | } | |
17c23274 | 527 | /* send it down the pipe */ |
40d2ff32 EP |
528 | retval = usb_submit_urb(urb, GFP_ATOMIC); |
529 | if (retval) { | |
e6929a90 ON |
530 | usb_unanchor_urb(urb); |
531 | spin_unlock_irqrestore(&intfdata->susp_lock, flags); | |
17c23274 | 532 | dev_err(&port->dev, "%s - usb_submit_urb(write bulk) failed " |
40d2ff32 | 533 | "with status = %d\n", __func__, retval); |
17c23274 | 534 | goto error; |
e6929a90 ON |
535 | } else { |
536 | intfdata->in_flight++; | |
537 | spin_unlock_irqrestore(&intfdata->susp_lock, flags); | |
033a3fb9 KL |
538 | } |
539 | ||
e6929a90 | 540 | skip_power: |
17c23274 GKH |
541 | /* we are done with this urb, so let the host driver |
542 | * really free it when it is finished with it */ | |
543 | usb_free_urb(urb); | |
544 | ||
40d2ff32 | 545 | return writesize; |
17c23274 GKH |
546 | error: |
547 | usb_free_urb(urb); | |
548 | error_no_urb: | |
549 | kfree(buffer); | |
550 | error_no_buffer: | |
551 | spin_lock_irqsave(&portdata->lock, flags); | |
552 | --portdata->outstanding_urbs; | |
40d2ff32 EP |
553 | dev_dbg(&port->dev, "%s - 2. outstanding_urbs: %d\n", __func__, |
554 | portdata->outstanding_urbs); | |
17c23274 | 555 | spin_unlock_irqrestore(&portdata->lock, flags); |
e6929a90 ON |
556 | usb_autopm_put_interface_async(serial->interface); |
557 | error_simple: | |
40d2ff32 | 558 | return retval; |
033a3fb9 KL |
559 | } |
560 | ||
561 | static void sierra_indat_callback(struct urb *urb) | |
562 | { | |
563 | int err; | |
564 | int endpoint; | |
565 | struct usb_serial_port *port; | |
033a3fb9 | 566 | unsigned char *data = urb->transfer_buffer; |
17dd2215 | 567 | int status = urb->status; |
033a3fb9 | 568 | |
033a3fb9 | 569 | endpoint = usb_pipeendpoint(urb->pipe); |
b0cda8c5 EP |
570 | port = urb->context; |
571 | ||
17dd2215 | 572 | if (status) { |
7384a922 | 573 | dev_dbg(&port->dev, "%s: nonzero status: %d on" |
5d44b361 | 574 | " endpoint %02x\n", __func__, status, endpoint); |
033a3fb9 | 575 | } else { |
033a3fb9 | 576 | if (urb->actual_length) { |
2e124b4a JS |
577 | tty_insert_flip_string(&port->port, data, |
578 | urb->actual_length); | |
579 | tty_flip_buffer_push(&port->port); | |
580 | ||
581 | usb_serial_debug_data(&port->dev, __func__, | |
582 | urb->actual_length, data); | |
b0cda8c5 | 583 | } else { |
7384a922 | 584 | dev_dbg(&port->dev, "%s: empty read urb" |
5d44b361 | 585 | " received\n", __func__); |
033a3fb9 KL |
586 | } |
587 | } | |
b0cda8c5 EP |
588 | |
589 | /* Resubmit urb so we continue receiving */ | |
1f87158e | 590 | if (status != -ESHUTDOWN && status != -EPERM) { |
e6929a90 | 591 | usb_mark_last_busy(port->serial->dev); |
b0cda8c5 | 592 | err = usb_submit_urb(urb, GFP_ATOMIC); |
1f87158e | 593 | if (err && err != -EPERM) |
b0cda8c5 EP |
594 | dev_err(&port->dev, "resubmit read urb failed." |
595 | "(%d)\n", err); | |
596 | } | |
033a3fb9 KL |
597 | } |
598 | ||
033a3fb9 KL |
599 | static void sierra_instat_callback(struct urb *urb) |
600 | { | |
601 | int err; | |
17dd2215 | 602 | int status = urb->status; |
cdc97792 | 603 | struct usb_serial_port *port = urb->context; |
033a3fb9 KL |
604 | struct sierra_port_private *portdata = usb_get_serial_port_data(port); |
605 | struct usb_serial *serial = port->serial; | |
606 | ||
5d44b361 | 607 | dev_dbg(&port->dev, "%s: urb %p port %p has data %p\n", __func__, |
7384a922 | 608 | urb, port, portdata); |
033a3fb9 | 609 | |
17dd2215 | 610 | if (status == 0) { |
033a3fb9 KL |
611 | struct usb_ctrlrequest *req_pkt = |
612 | (struct usb_ctrlrequest *)urb->transfer_buffer; | |
613 | ||
614 | if (!req_pkt) { | |
7384a922 KL |
615 | dev_dbg(&port->dev, "%s: NULL req_pkt\n", |
616 | __func__); | |
033a3fb9 KL |
617 | return; |
618 | } | |
619 | if ((req_pkt->bRequestType == 0xA1) && | |
620 | (req_pkt->bRequest == 0x20)) { | |
621 | int old_dcd_state; | |
622 | unsigned char signals = *((unsigned char *) | |
623 | urb->transfer_buffer + | |
624 | sizeof(struct usb_ctrlrequest)); | |
625 | ||
5d44b361 | 626 | dev_dbg(&port->dev, "%s: signal x%x\n", __func__, |
7384a922 | 627 | signals); |
033a3fb9 KL |
628 | |
629 | old_dcd_state = portdata->dcd_state; | |
630 | portdata->cts_state = 1; | |
631 | portdata->dcd_state = ((signals & 0x01) ? 1 : 0); | |
632 | portdata->dsr_state = ((signals & 0x02) ? 1 : 0); | |
633 | portdata->ri_state = ((signals & 0x08) ? 1 : 0); | |
634 | ||
aa27a094 JS |
635 | if (old_dcd_state && !portdata->dcd_state) |
636 | tty_port_tty_hangup(&port->port, true); | |
033a3fb9 | 637 | } else { |
5d44b361 | 638 | dev_dbg(&port->dev, "%s: type %x req %x\n", |
7384a922 KL |
639 | __func__, req_pkt->bRequestType, |
640 | req_pkt->bRequest); | |
033a3fb9 KL |
641 | } |
642 | } else | |
5d44b361 | 643 | dev_dbg(&port->dev, "%s: error %d\n", __func__, status); |
033a3fb9 KL |
644 | |
645 | /* Resubmit urb so we continue receiving IRQ data */ | |
1f87158e | 646 | if (status != -ESHUTDOWN && status != -ENOENT) { |
e6929a90 | 647 | usb_mark_last_busy(serial->dev); |
033a3fb9 | 648 | err = usb_submit_urb(urb, GFP_ATOMIC); |
1f87158e | 649 | if (err && err != -EPERM) |
c76a23da EP |
650 | dev_err(&port->dev, "%s: resubmit intr urb " |
651 | "failed. (%d)\n", __func__, err); | |
033a3fb9 KL |
652 | } |
653 | } | |
654 | ||
95da310e | 655 | static int sierra_write_room(struct tty_struct *tty) |
033a3fb9 | 656 | { |
95da310e | 657 | struct usb_serial_port *port = tty->driver_data; |
17c23274 GKH |
658 | struct sierra_port_private *portdata = usb_get_serial_port_data(port); |
659 | unsigned long flags; | |
033a3fb9 | 660 | |
17c23274 GKH |
661 | /* try to give a good number back based on if we have any free urbs at |
662 | * this point in time */ | |
663 | spin_lock_irqsave(&portdata->lock, flags); | |
3a2b808e | 664 | if (portdata->outstanding_urbs > (portdata->num_out_urbs * 2) / 3) { |
17c23274 | 665 | spin_unlock_irqrestore(&portdata->lock, flags); |
7384a922 | 666 | dev_dbg(&port->dev, "%s - write limit hit\n", __func__); |
17c23274 | 667 | return 0; |
033a3fb9 | 668 | } |
17c23274 | 669 | spin_unlock_irqrestore(&portdata->lock, flags); |
033a3fb9 | 670 | |
17c23274 | 671 | return 2048; |
033a3fb9 KL |
672 | } |
673 | ||
93670599 JH |
674 | static int sierra_chars_in_buffer(struct tty_struct *tty) |
675 | { | |
676 | struct usb_serial_port *port = tty->driver_data; | |
677 | struct sierra_port_private *portdata = usb_get_serial_port_data(port); | |
678 | unsigned long flags; | |
679 | int chars; | |
680 | ||
681 | /* NOTE: This overcounts somewhat. */ | |
682 | spin_lock_irqsave(&portdata->lock, flags); | |
683 | chars = portdata->outstanding_urbs * MAX_TRANSFER; | |
684 | spin_unlock_irqrestore(&portdata->lock, flags); | |
685 | ||
686 | dev_dbg(&port->dev, "%s - %d\n", __func__, chars); | |
687 | ||
688 | return chars; | |
689 | } | |
690 | ||
b9a44bc1 | 691 | static void sierra_stop_rx_urbs(struct usb_serial_port *port) |
033a3fb9 | 692 | { |
9e85c5f6 | 693 | int i; |
b9a44bc1 | 694 | struct sierra_port_private *portdata = usb_get_serial_port_data(port); |
033a3fb9 | 695 | |
3a2b808e | 696 | for (i = 0; i < portdata->num_in_urbs; i++) |
b9a44bc1 | 697 | usb_kill_urb(portdata->in_urbs[i]); |
033a3fb9 | 698 | |
b9a44bc1 EP |
699 | usb_kill_urb(port->interrupt_in_urb); |
700 | } | |
033a3fb9 | 701 | |
b9a44bc1 EP |
702 | static int sierra_submit_rx_urbs(struct usb_serial_port *port, gfp_t mem_flags) |
703 | { | |
704 | int ok_cnt; | |
705 | int err = -EINVAL; | |
706 | int i; | |
707 | struct urb *urb; | |
708 | struct sierra_port_private *portdata = usb_get_serial_port_data(port); | |
033a3fb9 | 709 | |
b9a44bc1 | 710 | ok_cnt = 0; |
3a2b808e | 711 | for (i = 0; i < portdata->num_in_urbs; i++) { |
033a3fb9 | 712 | urb = portdata->in_urbs[i]; |
9e85c5f6 | 713 | if (!urb) |
033a3fb9 | 714 | continue; |
b9a44bc1 EP |
715 | err = usb_submit_urb(urb, mem_flags); |
716 | if (err) { | |
717 | dev_err(&port->dev, "%s: submit urb failed: %d\n", | |
718 | __func__, err); | |
719 | } else { | |
720 | ok_cnt++; | |
033a3fb9 | 721 | } |
b9a44bc1 | 722 | } |
033a3fb9 | 723 | |
b9a44bc1 EP |
724 | if (ok_cnt && port->interrupt_in_urb) { |
725 | err = usb_submit_urb(port->interrupt_in_urb, mem_flags); | |
726 | if (err) { | |
727 | dev_err(&port->dev, "%s: submit intr urb failed: %d\n", | |
728 | __func__, err); | |
033a3fb9 KL |
729 | } |
730 | } | |
731 | ||
b9a44bc1 EP |
732 | if (ok_cnt > 0) /* at least one rx urb submitted */ |
733 | return 0; | |
734 | else | |
735 | return err; | |
736 | } | |
737 | ||
738 | static struct urb *sierra_setup_urb(struct usb_serial *serial, int endpoint, | |
739 | int dir, void *ctx, int len, | |
740 | gfp_t mem_flags, | |
741 | usb_complete_t callback) | |
742 | { | |
743 | struct urb *urb; | |
744 | u8 *buf; | |
745 | ||
b9a44bc1 | 746 | urb = usb_alloc_urb(0, mem_flags); |
10c642d0 | 747 | if (!urb) |
b9a44bc1 | 748 | return NULL; |
b9a44bc1 EP |
749 | |
750 | buf = kmalloc(len, mem_flags); | |
751 | if (buf) { | |
752 | /* Fill URB using supplied data */ | |
753 | usb_fill_bulk_urb(urb, serial->dev, | |
754 | usb_sndbulkpipe(serial->dev, endpoint) | dir, | |
755 | buf, len, callback, ctx); | |
756 | ||
b9a44bc1 EP |
757 | dev_dbg(&serial->dev->dev, "%s %c u : %p d:%p\n", __func__, |
758 | dir == USB_DIR_IN ? 'i' : 'o', urb, buf); | |
759 | } else { | |
b9a44bc1 EP |
760 | sierra_release_urb(urb); |
761 | urb = NULL; | |
762 | } | |
763 | ||
764 | return urb; | |
033a3fb9 KL |
765 | } |
766 | ||
b9a44bc1 | 767 | static void sierra_close(struct usb_serial_port *port) |
033a3fb9 | 768 | { |
b9a44bc1 | 769 | int i; |
033a3fb9 KL |
770 | struct usb_serial *serial = port->serial; |
771 | struct sierra_port_private *portdata; | |
7c80782e | 772 | struct sierra_intf_private *intfdata = usb_get_serial_data(serial); |
014333f7 | 773 | struct urb *urb; |
e6929a90 | 774 | |
033a3fb9 | 775 | portdata = usb_get_serial_port_data(port); |
b9a44bc1 | 776 | |
c2e45d70 JH |
777 | /* |
778 | * Need to take susp_lock to make sure port is not already being | |
d41861ca | 779 | * resumed, but no need to hold it due to initialized |
c2e45d70 | 780 | */ |
9c210bfa | 781 | spin_lock_irq(&intfdata->susp_lock); |
80cc0fcb JH |
782 | if (--intfdata->open_ports == 0) |
783 | serial->interface->needs_remote_wakeup = 0; | |
9c210bfa JH |
784 | spin_unlock_irq(&intfdata->susp_lock); |
785 | ||
014333f7 JH |
786 | for (;;) { |
787 | urb = usb_get_from_anchor(&portdata->delayed); | |
788 | if (!urb) | |
789 | break; | |
790 | kfree(urb->transfer_buffer); | |
791 | usb_free_urb(urb); | |
792 | usb_autopm_put_interface_async(serial->interface); | |
793 | spin_lock(&portdata->lock); | |
794 | portdata->outstanding_urbs--; | |
795 | spin_unlock(&portdata->lock); | |
796 | } | |
797 | ||
9c210bfa | 798 | sierra_stop_rx_urbs(port); |
c9d838a8 JH |
799 | usb_kill_anchored_urbs(&portdata->active); |
800 | ||
9c210bfa JH |
801 | for (i = 0; i < portdata->num_in_urbs; i++) { |
802 | sierra_release_urb(portdata->in_urbs[i]); | |
803 | portdata->in_urbs[i] = NULL; | |
335f8514 | 804 | } |
0287d5c5 JH |
805 | |
806 | usb_autopm_get_interface_no_resume(serial->interface); | |
335f8514 AC |
807 | } |
808 | ||
a509a7e4 | 809 | static int sierra_open(struct tty_struct *tty, struct usb_serial_port *port) |
335f8514 | 810 | { |
b9a44bc1 EP |
811 | struct sierra_port_private *portdata; |
812 | struct usb_serial *serial = port->serial; | |
7c80782e | 813 | struct sierra_intf_private *intfdata = usb_get_serial_data(serial); |
335f8514 | 814 | int i; |
b9a44bc1 EP |
815 | int err; |
816 | int endpoint; | |
817 | struct urb *urb; | |
818 | ||
819 | portdata = usb_get_serial_port_data(port); | |
820 | ||
b9a44bc1 | 821 | endpoint = port->bulk_in_endpointAddress; |
3a2b808e | 822 | for (i = 0; i < portdata->num_in_urbs; i++) { |
b9a44bc1 EP |
823 | urb = sierra_setup_urb(serial, endpoint, USB_DIR_IN, port, |
824 | IN_BUFLEN, GFP_KERNEL, | |
825 | sierra_indat_callback); | |
826 | portdata->in_urbs[i] = urb; | |
827 | } | |
828 | /* clear halt condition */ | |
829 | usb_clear_halt(serial->dev, | |
830 | usb_sndbulkpipe(serial->dev, endpoint) | USB_DIR_IN); | |
831 | ||
832 | err = sierra_submit_rx_urbs(port, GFP_KERNEL); | |
353fe198 JH |
833 | if (err) |
834 | goto err_submit; | |
835 | ||
e6929a90 | 836 | spin_lock_irq(&intfdata->susp_lock); |
80cc0fcb JH |
837 | if (++intfdata->open_ports == 1) |
838 | serial->interface->needs_remote_wakeup = 1; | |
e6929a90 ON |
839 | spin_unlock_irq(&intfdata->susp_lock); |
840 | usb_autopm_put_interface(serial->interface); | |
841 | ||
b9a44bc1 | 842 | return 0; |
353fe198 JH |
843 | |
844 | err_submit: | |
845 | sierra_stop_rx_urbs(port); | |
846 | ||
847 | for (i = 0; i < portdata->num_in_urbs; i++) { | |
848 | sierra_release_urb(portdata->in_urbs[i]); | |
849 | portdata->in_urbs[i] = NULL; | |
850 | } | |
851 | ||
852 | return err; | |
b9a44bc1 EP |
853 | } |
854 | ||
855 | ||
856 | static void sierra_dtr_rts(struct usb_serial_port *port, int on) | |
857 | { | |
335f8514 | 858 | struct sierra_port_private *portdata; |
033a3fb9 | 859 | |
335f8514 | 860 | portdata = usb_get_serial_port_data(port); |
b9a44bc1 EP |
861 | portdata->rts_state = on; |
862 | portdata->dtr_state = on; | |
335f8514 | 863 | |
b2ca6990 | 864 | sierra_send_setup(port); |
033a3fb9 KL |
865 | } |
866 | ||
033a3fb9 KL |
867 | static int sierra_startup(struct usb_serial *serial) |
868 | { | |
084817d7 | 869 | struct sierra_intf_private *intfdata; |
033a3fb9 | 870 | |
084817d7 JH |
871 | intfdata = kzalloc(sizeof(*intfdata), GFP_KERNEL); |
872 | if (!intfdata) | |
873 | return -ENOMEM; | |
874 | ||
875 | spin_lock_init(&intfdata->susp_lock); | |
876 | ||
877 | usb_set_serial_data(serial, intfdata); | |
878 | ||
228426ed | 879 | /* Set Device mode to D0 */ |
112225b1 KL |
880 | sierra_set_power_state(serial->dev, 0x0000); |
881 | ||
228426ed KL |
882 | /* Check NMEA and set */ |
883 | if (nmea) | |
884 | sierra_vsc_set_nmea(serial->dev, 1); | |
885 | ||
f525c05b JH |
886 | return 0; |
887 | } | |
888 | ||
889 | static void sierra_release(struct usb_serial *serial) | |
890 | { | |
891 | struct sierra_intf_private *intfdata; | |
892 | ||
893 | intfdata = usb_get_serial_data(serial); | |
894 | kfree(intfdata); | |
895 | } | |
896 | ||
897 | static int sierra_port_probe(struct usb_serial_port *port) | |
898 | { | |
899 | struct usb_serial *serial = port->serial; | |
900 | struct sierra_port_private *portdata; | |
901 | const struct sierra_iface_info *himemoryp; | |
902 | u8 ifnum; | |
903 | ||
904 | portdata = kzalloc(sizeof(*portdata), GFP_KERNEL); | |
905 | if (!portdata) | |
906 | return -ENOMEM; | |
907 | ||
908 | spin_lock_init(&portdata->lock); | |
909 | init_usb_anchor(&portdata->active); | |
910 | init_usb_anchor(&portdata->delayed); | |
911 | ||
912 | /* Assume low memory requirements */ | |
913 | portdata->num_out_urbs = N_OUT_URB; | |
914 | portdata->num_in_urbs = N_IN_URB; | |
915 | ||
916 | /* Determine actual memory requirements */ | |
917 | if (serial->num_ports == 1) { | |
918 | /* Get interface number for composite device */ | |
919 | ifnum = sierra_calc_interface(serial); | |
920 | himemoryp = &typeB_interface_list; | |
921 | } else { | |
922 | /* This is really the usb-serial port number of the interface | |
923 | * rather than the interface number. | |
924 | */ | |
1143832e | 925 | ifnum = port->port_number; |
f525c05b | 926 | himemoryp = &typeA_interface_list; |
033a3fb9 KL |
927 | } |
928 | ||
f525c05b JH |
929 | if (is_himemory(ifnum, himemoryp)) { |
930 | portdata->num_out_urbs = N_OUT_URB_HM; | |
931 | portdata->num_in_urbs = N_IN_URB_HM; | |
7e41f9bc JH |
932 | } |
933 | ||
f525c05b JH |
934 | dev_dbg(&port->dev, |
935 | "Memory usage (urbs) interface #%d, in=%d, out=%d\n", | |
936 | ifnum, portdata->num_in_urbs, portdata->num_out_urbs); | |
937 | ||
938 | usb_set_serial_port_data(port, portdata); | |
939 | ||
940 | return 0; | |
033a3fb9 KL |
941 | } |
942 | ||
f525c05b | 943 | static int sierra_port_remove(struct usb_serial_port *port) |
033a3fb9 | 944 | { |
033a3fb9 KL |
945 | struct sierra_port_private *portdata; |
946 | ||
f525c05b | 947 | portdata = usb_get_serial_port_data(port); |
8452727d | 948 | usb_set_serial_port_data(port, NULL); |
f525c05b JH |
949 | kfree(portdata); |
950 | ||
951 | return 0; | |
033a3fb9 KL |
952 | } |
953 | ||
cd604513 | 954 | #ifdef CONFIG_PM |
e6929a90 ON |
955 | static void stop_read_write_urbs(struct usb_serial *serial) |
956 | { | |
b64dc0a5 | 957 | int i; |
e6929a90 ON |
958 | struct usb_serial_port *port; |
959 | struct sierra_port_private *portdata; | |
960 | ||
961 | /* Stop reading/writing urbs */ | |
962 | for (i = 0; i < serial->num_ports; ++i) { | |
963 | port = serial->port[i]; | |
964 | portdata = usb_get_serial_port_data(port); | |
8452727d JH |
965 | if (!portdata) |
966 | continue; | |
b64dc0a5 | 967 | sierra_stop_rx_urbs(port); |
e6929a90 ON |
968 | usb_kill_anchored_urbs(&portdata->active); |
969 | } | |
970 | } | |
971 | ||
972 | static int sierra_suspend(struct usb_serial *serial, pm_message_t message) | |
973 | { | |
7d8825be | 974 | struct sierra_intf_private *intfdata = usb_get_serial_data(serial); |
e6929a90 | 975 | |
7d8825be | 976 | spin_lock_irq(&intfdata->susp_lock); |
5b1b0b81 | 977 | if (PMSG_IS_AUTO(message)) { |
7d8825be | 978 | if (intfdata->in_flight) { |
e6929a90 ON |
979 | spin_unlock_irq(&intfdata->susp_lock); |
980 | return -EBUSY; | |
e6929a90 ON |
981 | } |
982 | } | |
7d8825be JH |
983 | intfdata->suspended = 1; |
984 | spin_unlock_irq(&intfdata->susp_lock); | |
985 | ||
e6929a90 ON |
986 | stop_read_write_urbs(serial); |
987 | ||
988 | return 0; | |
989 | } | |
990 | ||
71c149b9 JH |
991 | /* Caller must hold susp_lock. */ |
992 | static int sierra_submit_delayed_urbs(struct usb_serial_port *port) | |
993 | { | |
994 | struct sierra_port_private *portdata = usb_get_serial_port_data(port); | |
995 | struct sierra_intf_private *intfdata; | |
996 | struct urb *urb; | |
997 | int ec = 0; | |
998 | int err; | |
999 | ||
1000 | intfdata = usb_get_serial_data(port->serial); | |
1001 | ||
1002 | for (;;) { | |
1003 | urb = usb_get_from_anchor(&portdata->delayed); | |
1004 | if (!urb) | |
1005 | break; | |
1006 | ||
1007 | usb_anchor_urb(urb, &portdata->active); | |
1008 | intfdata->in_flight++; | |
1009 | err = usb_submit_urb(urb, GFP_ATOMIC); | |
1010 | if (err) { | |
1011 | dev_err(&port->dev, "%s - submit urb failed: %d", | |
1012 | __func__, err); | |
1013 | ec++; | |
1014 | intfdata->in_flight--; | |
1015 | usb_unanchor_urb(urb); | |
1016 | kfree(urb->transfer_buffer); | |
1017 | usb_free_urb(urb); | |
1018 | ||
1019 | spin_lock(&portdata->lock); | |
1020 | portdata->outstanding_urbs--; | |
1021 | spin_unlock(&portdata->lock); | |
1022 | } | |
1023 | } | |
1024 | ||
1025 | if (ec) | |
1026 | return -EIO; | |
1027 | ||
1028 | return 0; | |
1029 | } | |
1030 | ||
e6929a90 ON |
1031 | static int sierra_resume(struct usb_serial *serial) |
1032 | { | |
1033 | struct usb_serial_port *port; | |
7c80782e | 1034 | struct sierra_intf_private *intfdata = usb_get_serial_data(serial); |
e6929a90 ON |
1035 | int ec = 0; |
1036 | int i, err; | |
1037 | ||
1038 | spin_lock_irq(&intfdata->susp_lock); | |
1039 | for (i = 0; i < serial->num_ports; i++) { | |
1040 | port = serial->port[i]; | |
e6929a90 | 1041 | |
d41861ca | 1042 | if (!tty_port_initialized(&port->port)) |
8452727d JH |
1043 | continue; |
1044 | ||
71c149b9 JH |
1045 | err = sierra_submit_delayed_urbs(port); |
1046 | if (err) | |
1047 | ec++; | |
e6929a90 | 1048 | |
a283d080 JH |
1049 | err = sierra_submit_rx_urbs(port, GFP_ATOMIC); |
1050 | if (err) | |
1051 | ec++; | |
e6929a90 ON |
1052 | } |
1053 | intfdata->suspended = 0; | |
1054 | spin_unlock_irq(&intfdata->susp_lock); | |
1055 | ||
1056 | return ec ? -EIO : 0; | |
1057 | } | |
7650cd96 | 1058 | |
cd604513 AM |
1059 | #else |
1060 | #define sierra_suspend NULL | |
1061 | #define sierra_resume NULL | |
1062 | #endif | |
e6929a90 | 1063 | |
228426ed | 1064 | static struct usb_serial_driver sierra_device = { |
964ee1de GKH |
1065 | .driver = { |
1066 | .owner = THIS_MODULE, | |
4e0fee82 | 1067 | .name = "sierra", |
964ee1de | 1068 | }, |
228426ed KL |
1069 | .description = "Sierra USB modem", |
1070 | .id_table = id_table, | |
228426ed KL |
1071 | .calc_num_ports = sierra_calc_num_ports, |
1072 | .probe = sierra_probe, | |
964ee1de GKH |
1073 | .open = sierra_open, |
1074 | .close = sierra_close, | |
335f8514 | 1075 | .dtr_rts = sierra_dtr_rts, |
964ee1de GKH |
1076 | .write = sierra_write, |
1077 | .write_room = sierra_write_room, | |
93670599 | 1078 | .chars_in_buffer = sierra_chars_in_buffer, |
964ee1de GKH |
1079 | .tiocmget = sierra_tiocmget, |
1080 | .tiocmset = sierra_tiocmset, | |
1081 | .attach = sierra_startup, | |
7bae0a07 | 1082 | .release = sierra_release, |
f525c05b JH |
1083 | .port_probe = sierra_port_probe, |
1084 | .port_remove = sierra_port_remove, | |
e6929a90 ON |
1085 | .suspend = sierra_suspend, |
1086 | .resume = sierra_resume, | |
964ee1de GKH |
1087 | .read_int_callback = sierra_instat_callback, |
1088 | }; | |
1089 | ||
d860322f AS |
1090 | static struct usb_serial_driver * const serial_drivers[] = { |
1091 | &sierra_device, NULL | |
1092 | }; | |
1093 | ||
68e24113 | 1094 | module_usb_serial_driver(serial_drivers, id_table); |
964ee1de | 1095 | |
033a3fb9 KL |
1096 | MODULE_AUTHOR(DRIVER_AUTHOR); |
1097 | MODULE_DESCRIPTION(DRIVER_DESC); | |
69de51fd | 1098 | MODULE_LICENSE("GPL"); |
033a3fb9 | 1099 | |
4e0fee82 | 1100 | module_param(nmea, bool, S_IRUGO | S_IWUSR); |
228426ed | 1101 | MODULE_PARM_DESC(nmea, "NMEA streaming"); |