Commit | Line | Data |
---|---|---|
69de51fd | 1 | /* |
033a3fb9 KL |
2 | USB Driver for Sierra Wireless |
3 | ||
40d2ff32 EP |
4 | Copyright (C) 2006, 2007, 2008 Kevin Lloyd <klloyd@sierrawireless.com>, |
5 | ||
6 | Copyright (C) 2008, 2009 Elina Pasheva, Matthew Safar, Rory Filer | |
7 | <linux@sierrawireless.com> | |
033a3fb9 KL |
8 | |
9 | IMPORTANT DISCLAIMER: This driver is not commercially supported by | |
10 | Sierra Wireless. Use at your own risk. | |
11 | ||
12 | This driver is free software; you can redistribute it and/or modify | |
13 | it under the terms of Version 2 of the GNU General Public License as | |
14 | published by the Free Software Foundation. | |
15 | ||
16 | Portions based on the option driver by Matthias Urlichs <smurf@smurf.noris.de> | |
17 | Whom based his on the Keyspan driver by Hugh Blemings <hugh@blemings.org> | |
033a3fb9 | 18 | */ |
3a2b808e EP |
19 | /* Uncomment to log function calls */ |
20 | /* #define DEBUG */ | |
21 | #define DRIVER_VERSION "v.1.7.16" | |
40d2ff32 | 22 | #define DRIVER_AUTHOR "Kevin Lloyd, Elina Pasheva, Matthew Safar, Rory Filer" |
033a3fb9 | 23 | #define DRIVER_DESC "USB Driver for Sierra Wireless USB modems" |
69de51fd KL |
24 | |
25 | #include <linux/kernel.h> | |
033a3fb9 KL |
26 | #include <linux/jiffies.h> |
27 | #include <linux/errno.h> | |
69de51fd | 28 | #include <linux/tty.h> |
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 RR |
49 | static bool debug; |
50 | static bool nmea; | |
112225b1 | 51 | |
4db2299d EP |
52 | /* Used in interface blacklisting */ |
53 | struct sierra_iface_info { | |
54 | const u32 infolen; /* number of interface numbers on blacklist */ | |
55 | const u8 *ifaceinfo; /* pointer to the array holding the numbers */ | |
56 | }; | |
57 | ||
e6929a90 ON |
58 | struct sierra_intf_private { |
59 | spinlock_t susp_lock; | |
60 | unsigned int suspended:1; | |
61 | int in_flight; | |
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; |
e6929a90 | 165 | struct sierra_intf_private *data; |
228426ed | 166 | u8 ifnum; |
112225b1 | 167 | |
228426ed | 168 | udev = serial->dev; |
e3173b22 | 169 | ifnum = sierra_calc_interface(serial); |
64318a52 | 170 | |
e3173b22 KL |
171 | /* |
172 | * If this interface supports more than 1 alternate | |
173 | * select the 2nd one | |
174 | */ | |
175 | if (serial->interface->num_altsetting == 2) { | |
176 | dev_dbg(&udev->dev, "Selecting alt setting for interface %d\n", | |
177 | ifnum); | |
178 | /* We know the alternate setting is 1 for the MC8785 */ | |
179 | usb_set_interface(udev, ifnum, 1); | |
180 | } | |
7106967e | 181 | |
4db2299d EP |
182 | /* ifnum could have changed - by calling usb_set_interface */ |
183 | ifnum = sierra_calc_interface(serial); | |
184 | ||
185 | if (is_blacklisted(ifnum, | |
186 | (struct sierra_iface_info *)id->driver_info)) { | |
187 | dev_dbg(&serial->dev->dev, | |
188 | "Ignoring blacklisted interface #%d\n", ifnum); | |
189 | return -ENODEV; | |
190 | } | |
191 | ||
e6929a90 ON |
192 | data = serial->private = kzalloc(sizeof(struct sierra_intf_private), GFP_KERNEL); |
193 | if (!data) | |
194 | return -ENOMEM; | |
195 | spin_lock_init(&data->susp_lock); | |
196 | ||
228426ed | 197 | return result; |
112225b1 | 198 | } |
033a3fb9 | 199 | |
3a2b808e EP |
200 | /* interfaces with higher memory requirements */ |
201 | static const u8 hi_memory_typeA_ifaces[] = { 0, 2 }; | |
202 | static const struct sierra_iface_info typeA_interface_list = { | |
203 | .infolen = ARRAY_SIZE(hi_memory_typeA_ifaces), | |
204 | .ifaceinfo = hi_memory_typeA_ifaces, | |
205 | }; | |
206 | ||
207 | static const u8 hi_memory_typeB_ifaces[] = { 3, 4, 5, 6 }; | |
208 | static const struct sierra_iface_info typeB_interface_list = { | |
209 | .infolen = ARRAY_SIZE(hi_memory_typeB_ifaces), | |
210 | .ifaceinfo = hi_memory_typeB_ifaces, | |
211 | }; | |
212 | ||
213 | /* 'blacklist' of interfaces not served by this driver */ | |
749541d1 | 214 | static const u8 direct_ip_non_serial_ifaces[] = { 7, 8, 9, 10, 11, 19, 20 }; |
4db2299d EP |
215 | static const struct sierra_iface_info direct_ip_interface_blacklist = { |
216 | .infolen = ARRAY_SIZE(direct_ip_non_serial_ifaces), | |
217 | .ifaceinfo = direct_ip_non_serial_ifaces, | |
218 | }; | |
219 | ||
7d40d7e8 | 220 | static const struct usb_device_id id_table[] = { |
c5f3d87d EP |
221 | { USB_DEVICE(0x0F3D, 0x0112) }, /* Airprime/Sierra PC 5220 */ |
222 | { USB_DEVICE(0x03F0, 0x1B1D) }, /* HP ev2200 a.k.a MC5720 */ | |
cfbaa393 | 223 | { USB_DEVICE(0x03F0, 0x211D) }, /* HP ev2210 a.k.a MC5725 */ |
c5f3d87d EP |
224 | { USB_DEVICE(0x03F0, 0x1E1D) }, /* HP hs2300 a.k.a MC8775 */ |
225 | ||
e43062dd | 226 | { USB_DEVICE(0x1199, 0x0017) }, /* Sierra Wireless EM5625 */ |
69de51fd | 227 | { USB_DEVICE(0x1199, 0x0018) }, /* Sierra Wireless MC5720 */ |
e43062dd | 228 | { USB_DEVICE(0x1199, 0x0218) }, /* Sierra Wireless MC5720 */ |
69de51fd | 229 | { USB_DEVICE(0x1199, 0x0020) }, /* Sierra Wireless MC5725 */ |
b9e13ac3 | 230 | { USB_DEVICE(0x1199, 0x0220) }, /* Sierra Wireless MC5725 */ |
c5f3d87d EP |
231 | { USB_DEVICE(0x1199, 0x0022) }, /* Sierra Wireless EM5725 */ |
232 | { USB_DEVICE(0x1199, 0x0024) }, /* Sierra Wireless MC5727 */ | |
233 | { USB_DEVICE(0x1199, 0x0224) }, /* Sierra Wireless MC5727 */ | |
69de51fd | 234 | { USB_DEVICE(0x1199, 0x0019) }, /* Sierra Wireless AirCard 595 */ |
e43062dd | 235 | { USB_DEVICE(0x1199, 0x0021) }, /* Sierra Wireless AirCard 597E */ |
c5f3d87d | 236 | { USB_DEVICE(0x1199, 0x0112) }, /* Sierra Wireless AirCard 580 */ |
9454c46a | 237 | { USB_DEVICE(0x1199, 0x0120) }, /* Sierra Wireless USB Dongle 595U */ |
9d72c81d | 238 | { USB_DEVICE(0x1199, 0x0301) }, /* Sierra Wireless USB Dongle 250U */ |
c5f3d87d | 239 | /* Sierra Wireless C597 */ |
4e0fee82 | 240 | { USB_DEVICE_AND_INTERFACE_INFO(0x1199, 0x0023, 0xFF, 0xFF, 0xFF) }, |
c5f3d87d | 241 | /* Sierra Wireless T598 */ |
e3173b22 | 242 | { USB_DEVICE_AND_INTERFACE_INFO(0x1199, 0x0025, 0xFF, 0xFF, 0xFF) }, |
c5f3d87d EP |
243 | { USB_DEVICE(0x1199, 0x0026) }, /* Sierra Wireless T11 */ |
244 | { USB_DEVICE(0x1199, 0x0027) }, /* Sierra Wireless AC402 */ | |
245 | { USB_DEVICE(0x1199, 0x0028) }, /* Sierra Wireless MC5728 */ | |
246 | { USB_DEVICE(0x1199, 0x0029) }, /* Sierra Wireless Device */ | |
9454c46a | 247 | |
69de51fd KL |
248 | { USB_DEVICE(0x1199, 0x6802) }, /* Sierra Wireless MC8755 */ |
249 | { USB_DEVICE(0x1199, 0x6803) }, /* Sierra Wireless MC8765 */ | |
c5f3d87d EP |
250 | { USB_DEVICE(0x1199, 0x6804) }, /* Sierra Wireless MC8755 */ |
251 | { USB_DEVICE(0x1199, 0x6805) }, /* Sierra Wireless MC8765 */ | |
252 | { USB_DEVICE(0x1199, 0x6808) }, /* Sierra Wireless MC8755 */ | |
253 | { USB_DEVICE(0x1199, 0x6809) }, /* Sierra Wireless MC8765 */ | |
9454c46a | 254 | { USB_DEVICE(0x1199, 0x6812) }, /* Sierra Wireless MC8775 & AC 875U */ |
c5f3d87d | 255 | { USB_DEVICE(0x1199, 0x6813) }, /* Sierra Wireless MC8775 */ |
7f170a63 | 256 | { USB_DEVICE(0x1199, 0x6815) }, /* Sierra Wireless MC8775 */ |
c5f3d87d | 257 | { USB_DEVICE(0x1199, 0x6816) }, /* Sierra Wireless MC8775 */ |
69de51fd | 258 | { USB_DEVICE(0x1199, 0x6820) }, /* Sierra Wireless AirCard 875 */ |
7106967e | 259 | { USB_DEVICE(0x1199, 0x6821) }, /* Sierra Wireless AirCard 875U */ |
c5f3d87d | 260 | { USB_DEVICE(0x1199, 0x6822) }, /* Sierra Wireless AirCard 875E */ |
4e0fee82 KL |
261 | { USB_DEVICE(0x1199, 0x6832) }, /* Sierra Wireless MC8780 */ |
262 | { USB_DEVICE(0x1199, 0x6833) }, /* Sierra Wireless MC8781 */ | |
c5f3d87d EP |
263 | { USB_DEVICE(0x1199, 0x6834) }, /* Sierra Wireless MC8780 */ |
264 | { USB_DEVICE(0x1199, 0x6835) }, /* Sierra Wireless MC8781 */ | |
265 | { USB_DEVICE(0x1199, 0x6838) }, /* Sierra Wireless MC8780 */ | |
266 | { USB_DEVICE(0x1199, 0x6839) }, /* Sierra Wireless MC8781 */ | |
b77a5c70 | 267 | { USB_DEVICE(0x1199, 0x683A) }, /* Sierra Wireless MC8785 */ |
e3173b22 | 268 | { USB_DEVICE(0x1199, 0x683B) }, /* Sierra Wireless MC8785 Composite */ |
4db2299d EP |
269 | /* Sierra Wireless MC8790, MC8791, MC8792 Composite */ |
270 | { USB_DEVICE(0x1199, 0x683C) }, | |
271 | { USB_DEVICE(0x1199, 0x683D) }, /* Sierra Wireless MC8791 Composite */ | |
272 | /* Sierra Wireless MC8790, MC8791, MC8792 */ | |
273 | { USB_DEVICE(0x1199, 0x683E) }, | |
9454c46a KL |
274 | { USB_DEVICE(0x1199, 0x6850) }, /* Sierra Wireless AirCard 880 */ |
275 | { USB_DEVICE(0x1199, 0x6851) }, /* Sierra Wireless AirCard 881 */ | |
276 | { USB_DEVICE(0x1199, 0x6852) }, /* Sierra Wireless AirCard 880 E */ | |
277 | { USB_DEVICE(0x1199, 0x6853) }, /* Sierra Wireless AirCard 881 E */ | |
6835b32c | 278 | { USB_DEVICE(0x1199, 0x6855) }, /* Sierra Wireless AirCard 880 U */ |
62aad3ab | 279 | { USB_DEVICE(0x1199, 0x6856) }, /* Sierra Wireless AirCard 881 U */ |
e3173b22 KL |
280 | { USB_DEVICE(0x1199, 0x6859) }, /* Sierra Wireless AirCard 885 E */ |
281 | { USB_DEVICE(0x1199, 0x685A) }, /* Sierra Wireless AirCard 885 E */ | |
282 | /* Sierra Wireless C885 */ | |
283 | { USB_DEVICE_AND_INTERFACE_INFO(0x1199, 0x6880, 0xFF, 0xFF, 0xFF)}, | |
c5f3d87d | 284 | /* Sierra Wireless C888, Air Card 501, USB 303, USB 304 */ |
e3173b22 | 285 | { USB_DEVICE_AND_INTERFACE_INFO(0x1199, 0x6890, 0xFF, 0xFF, 0xFF)}, |
c5f3d87d | 286 | /* Sierra Wireless C22/C33 */ |
73b2c205 | 287 | { USB_DEVICE_AND_INTERFACE_INFO(0x1199, 0x6891, 0xFF, 0xFF, 0xFF)}, |
c5f3d87d | 288 | /* Sierra Wireless HSPA Non-Composite Device */ |
e3173b22 | 289 | { USB_DEVICE_AND_INTERFACE_INFO(0x1199, 0x6892, 0xFF, 0xFF, 0xFF)}, |
c5f3d87d | 290 | { USB_DEVICE(0x1199, 0x6893) }, /* Sierra Wireless Device */ |
4db2299d EP |
291 | { USB_DEVICE(0x1199, 0x68A3), /* Sierra Wireless Direct IP modems */ |
292 | .driver_info = (kernel_ulong_t)&direct_ip_interface_blacklist | |
19a3dd15 TC |
293 | }, |
294 | /* AT&T Direct IP LTE modems */ | |
295 | { USB_DEVICE_AND_INTERFACE_INFO(0x0F3D, 0x68AA, 0xFF, 0xFF, 0xFF), | |
296 | .driver_info = (kernel_ulong_t)&direct_ip_interface_blacklist | |
4db2299d | 297 | }, |
e1dc5157 JT |
298 | { USB_DEVICE(0x0f3d, 0x68A3), /* Airprime/Sierra Wireless Direct IP modems */ |
299 | .driver_info = (kernel_ulong_t)&direct_ip_interface_blacklist | |
300 | }, | |
1ebca9da | 301 | { USB_DEVICE(0x413C, 0x08133) }, /* Dell Computer Corp. Wireless 5720 VZW Mobile Broadband (EVDO Rev-A) Minicard GPS Port */ |
4db2299d | 302 | |
033a3fb9 KL |
303 | { } |
304 | }; | |
964ee1de | 305 | MODULE_DEVICE_TABLE(usb, id_table); |
033a3fb9 | 306 | |
033a3fb9 | 307 | |
033a3fb9 | 308 | struct sierra_port_private { |
17c23274 GKH |
309 | spinlock_t lock; /* lock the structure */ |
310 | int outstanding_urbs; /* number of out urbs in flight */ | |
e6929a90 ON |
311 | struct usb_anchor active; |
312 | struct usb_anchor delayed; | |
17c23274 | 313 | |
3a2b808e EP |
314 | int num_out_urbs; |
315 | int num_in_urbs; | |
4f4f9c53 | 316 | /* Input endpoints and buffers for this port */ |
3a2b808e | 317 | struct urb *in_urbs[N_IN_URB_HM]; |
033a3fb9 KL |
318 | |
319 | /* Settings for the port */ | |
320 | int rts_state; /* Handshaking pins (outputs) */ | |
321 | int dtr_state; | |
322 | int cts_state; /* Handshaking pins (inputs) */ | |
323 | int dsr_state; | |
324 | int dcd_state; | |
325 | int ri_state; | |
e6929a90 | 326 | unsigned int opened:1; |
033a3fb9 KL |
327 | }; |
328 | ||
335f8514 | 329 | static int sierra_send_setup(struct usb_serial_port *port) |
69de51fd | 330 | { |
964ee1de GKH |
331 | struct usb_serial *serial = port->serial; |
332 | struct sierra_port_private *portdata; | |
228426ed | 333 | __u16 interface = 0; |
335f8514 | 334 | int val = 0; |
3c77d513 EP |
335 | int do_send = 0; |
336 | int retval; | |
033a3fb9 | 337 | |
964ee1de | 338 | portdata = usb_get_serial_port_data(port); |
033a3fb9 | 339 | |
335f8514 AC |
340 | if (portdata->dtr_state) |
341 | val |= 0x01; | |
342 | if (portdata->rts_state) | |
343 | val |= 0x02; | |
344 | ||
345 | /* If composite device then properly report interface */ | |
00b040de | 346 | if (serial->num_ports == 1) { |
335f8514 | 347 | interface = sierra_calc_interface(serial); |
00b040de AC |
348 | /* Control message is sent only to interfaces with |
349 | * interrupt_in endpoints | |
350 | */ | |
351 | if (port->interrupt_in_urb) { | |
352 | /* send control message */ | |
3c77d513 | 353 | do_send = 1; |
00b040de AC |
354 | } |
355 | } | |
335f8514 AC |
356 | |
357 | /* Otherwise the need to do non-composite mapping */ | |
358 | else { | |
359 | if (port->bulk_out_endpointAddress == 2) | |
360 | interface = 0; | |
361 | else if (port->bulk_out_endpointAddress == 4) | |
362 | interface = 1; | |
363 | else if (port->bulk_out_endpointAddress == 5) | |
364 | interface = 2; | |
3c77d513 EP |
365 | |
366 | do_send = 1; | |
00b040de | 367 | } |
3c77d513 EP |
368 | if (!do_send) |
369 | return 0; | |
370 | ||
5b7c1178 ON |
371 | retval = usb_autopm_get_interface(serial->interface); |
372 | if (retval < 0) | |
373 | return retval; | |
374 | ||
3c77d513 EP |
375 | retval = usb_control_msg(serial->dev, usb_rcvctrlpipe(serial->dev, 0), |
376 | 0x22, 0x21, val, interface, NULL, 0, USB_CTRL_SET_TIMEOUT); | |
377 | usb_autopm_put_interface(serial->interface); | |
378 | ||
379 | return retval; | |
69de51fd KL |
380 | } |
381 | ||
95da310e AC |
382 | static void sierra_set_termios(struct tty_struct *tty, |
383 | struct usb_serial_port *port, struct ktermios *old_termios) | |
033a3fb9 | 384 | { |
95da310e | 385 | tty_termios_copy_hw(tty->termios, old_termios); |
335f8514 | 386 | sierra_send_setup(port); |
033a3fb9 KL |
387 | } |
388 | ||
60b33c13 | 389 | static int sierra_tiocmget(struct tty_struct *tty) |
033a3fb9 | 390 | { |
95da310e | 391 | struct usb_serial_port *port = tty->driver_data; |
033a3fb9 KL |
392 | unsigned int value; |
393 | struct sierra_port_private *portdata; | |
394 | ||
395 | portdata = usb_get_serial_port_data(port); | |
396 | ||
397 | value = ((portdata->rts_state) ? TIOCM_RTS : 0) | | |
398 | ((portdata->dtr_state) ? TIOCM_DTR : 0) | | |
399 | ((portdata->cts_state) ? TIOCM_CTS : 0) | | |
400 | ((portdata->dsr_state) ? TIOCM_DSR : 0) | | |
401 | ((portdata->dcd_state) ? TIOCM_CAR : 0) | | |
402 | ((portdata->ri_state) ? TIOCM_RNG : 0); | |
403 | ||
404 | return value; | |
405 | } | |
406 | ||
20b9d177 | 407 | static int sierra_tiocmset(struct tty_struct *tty, |
033a3fb9 KL |
408 | unsigned int set, unsigned int clear) |
409 | { | |
95da310e | 410 | struct usb_serial_port *port = tty->driver_data; |
033a3fb9 KL |
411 | struct sierra_port_private *portdata; |
412 | ||
413 | portdata = usb_get_serial_port_data(port); | |
414 | ||
415 | if (set & TIOCM_RTS) | |
416 | portdata->rts_state = 1; | |
417 | if (set & TIOCM_DTR) | |
418 | portdata->dtr_state = 1; | |
419 | ||
420 | if (clear & TIOCM_RTS) | |
421 | portdata->rts_state = 0; | |
422 | if (clear & TIOCM_DTR) | |
423 | portdata->dtr_state = 0; | |
335f8514 | 424 | return sierra_send_setup(port); |
033a3fb9 KL |
425 | } |
426 | ||
b9a44bc1 EP |
427 | static void sierra_release_urb(struct urb *urb) |
428 | { | |
429 | struct usb_serial_port *port; | |
430 | if (urb) { | |
64318a52 | 431 | port = urb->context; |
b9a44bc1 EP |
432 | kfree(urb->transfer_buffer); |
433 | usb_free_urb(urb); | |
434 | } | |
435 | } | |
436 | ||
17c23274 GKH |
437 | static void sierra_outdat_callback(struct urb *urb) |
438 | { | |
439 | struct usb_serial_port *port = urb->context; | |
440 | struct sierra_port_private *portdata = usb_get_serial_port_data(port); | |
e6929a90 | 441 | struct sierra_intf_private *intfdata; |
17c23274 | 442 | int status = urb->status; |
17c23274 | 443 | |
e6929a90 | 444 | intfdata = port->serial->private; |
17c23274 GKH |
445 | |
446 | /* free up the transfer buffer, as usb_free_urb() does not do this */ | |
447 | kfree(urb->transfer_buffer); | |
e6929a90 | 448 | usb_autopm_put_interface_async(port->serial->interface); |
17c23274 | 449 | if (status) |
7384a922 | 450 | dev_dbg(&port->dev, "%s - nonzero write bulk status " |
5d44b361 | 451 | "received: %d\n", __func__, status); |
17c23274 | 452 | |
e6929a90 | 453 | spin_lock(&portdata->lock); |
17c23274 | 454 | --portdata->outstanding_urbs; |
e6929a90 ON |
455 | spin_unlock(&portdata->lock); |
456 | spin_lock(&intfdata->susp_lock); | |
457 | --intfdata->in_flight; | |
458 | spin_unlock(&intfdata->susp_lock); | |
17c23274 GKH |
459 | |
460 | usb_serial_port_softint(port); | |
461 | } | |
462 | ||
033a3fb9 | 463 | /* Write */ |
95da310e AC |
464 | static int sierra_write(struct tty_struct *tty, struct usb_serial_port *port, |
465 | const unsigned char *buf, int count) | |
033a3fb9 | 466 | { |
a45a1e07 | 467 | struct sierra_port_private *portdata; |
e6929a90 | 468 | struct sierra_intf_private *intfdata; |
17c23274 GKH |
469 | struct usb_serial *serial = port->serial; |
470 | unsigned long flags; | |
471 | unsigned char *buffer; | |
472 | struct urb *urb; | |
40d2ff32 EP |
473 | size_t writesize = min((size_t)count, (size_t)MAX_TRANSFER); |
474 | int retval = 0; | |
475 | ||
476 | /* verify that we actually have some data to write */ | |
477 | if (count == 0) | |
478 | return 0; | |
033a3fb9 KL |
479 | |
480 | portdata = usb_get_serial_port_data(port); | |
e6929a90 | 481 | intfdata = serial->private; |
033a3fb9 | 482 | |
0b10395a | 483 | dev_dbg(&port->dev, "%s: write (%zd bytes)\n", __func__, writesize); |
17c23274 | 484 | spin_lock_irqsave(&portdata->lock, flags); |
40d2ff32 EP |
485 | dev_dbg(&port->dev, "%s - outstanding_urbs: %d\n", __func__, |
486 | portdata->outstanding_urbs); | |
3a2b808e | 487 | if (portdata->outstanding_urbs > portdata->num_out_urbs) { |
17c23274 | 488 | spin_unlock_irqrestore(&portdata->lock, flags); |
7384a922 | 489 | dev_dbg(&port->dev, "%s - write limit hit\n", __func__); |
17c23274 GKH |
490 | return 0; |
491 | } | |
492 | portdata->outstanding_urbs++; | |
40d2ff32 EP |
493 | dev_dbg(&port->dev, "%s - 1, outstanding_urbs: %d\n", __func__, |
494 | portdata->outstanding_urbs); | |
17c23274 GKH |
495 | spin_unlock_irqrestore(&portdata->lock, flags); |
496 | ||
e6929a90 ON |
497 | retval = usb_autopm_get_interface_async(serial->interface); |
498 | if (retval < 0) { | |
499 | spin_lock_irqsave(&portdata->lock, flags); | |
500 | portdata->outstanding_urbs--; | |
501 | spin_unlock_irqrestore(&portdata->lock, flags); | |
502 | goto error_simple; | |
503 | } | |
504 | ||
40d2ff32 | 505 | buffer = kmalloc(writesize, GFP_ATOMIC); |
17c23274 GKH |
506 | if (!buffer) { |
507 | dev_err(&port->dev, "out of memory\n"); | |
40d2ff32 | 508 | retval = -ENOMEM; |
17c23274 GKH |
509 | goto error_no_buffer; |
510 | } | |
033a3fb9 | 511 | |
17c23274 GKH |
512 | urb = usb_alloc_urb(0, GFP_ATOMIC); |
513 | if (!urb) { | |
514 | dev_err(&port->dev, "no more free urbs\n"); | |
40d2ff32 | 515 | retval = -ENOMEM; |
17c23274 GKH |
516 | goto error_no_urb; |
517 | } | |
033a3fb9 | 518 | |
40d2ff32 | 519 | memcpy(buffer, buf, writesize); |
033a3fb9 | 520 | |
59d33f2f | 521 | usb_serial_debug_data(&port->dev, __func__, writesize, buffer); |
17c23274 GKH |
522 | |
523 | usb_fill_bulk_urb(urb, serial->dev, | |
524 | usb_sndbulkpipe(serial->dev, | |
525 | port->bulk_out_endpointAddress), | |
40d2ff32 | 526 | buffer, writesize, sierra_outdat_callback, port); |
17c23274 | 527 | |
238ebd13 EP |
528 | /* Handle the need to send a zero length packet */ |
529 | urb->transfer_flags |= URB_ZERO_PACKET; | |
530 | ||
e6929a90 ON |
531 | spin_lock_irqsave(&intfdata->susp_lock, flags); |
532 | ||
533 | if (intfdata->suspended) { | |
534 | usb_anchor_urb(urb, &portdata->delayed); | |
535 | spin_unlock_irqrestore(&intfdata->susp_lock, flags); | |
536 | goto skip_power; | |
537 | } else { | |
538 | usb_anchor_urb(urb, &portdata->active); | |
539 | } | |
17c23274 | 540 | /* send it down the pipe */ |
40d2ff32 EP |
541 | retval = usb_submit_urb(urb, GFP_ATOMIC); |
542 | if (retval) { | |
e6929a90 ON |
543 | usb_unanchor_urb(urb); |
544 | spin_unlock_irqrestore(&intfdata->susp_lock, flags); | |
17c23274 | 545 | dev_err(&port->dev, "%s - usb_submit_urb(write bulk) failed " |
40d2ff32 | 546 | "with status = %d\n", __func__, retval); |
17c23274 | 547 | goto error; |
e6929a90 ON |
548 | } else { |
549 | intfdata->in_flight++; | |
550 | spin_unlock_irqrestore(&intfdata->susp_lock, flags); | |
033a3fb9 KL |
551 | } |
552 | ||
e6929a90 | 553 | skip_power: |
17c23274 GKH |
554 | /* we are done with this urb, so let the host driver |
555 | * really free it when it is finished with it */ | |
556 | usb_free_urb(urb); | |
557 | ||
40d2ff32 | 558 | return writesize; |
17c23274 GKH |
559 | error: |
560 | usb_free_urb(urb); | |
561 | error_no_urb: | |
562 | kfree(buffer); | |
563 | error_no_buffer: | |
564 | spin_lock_irqsave(&portdata->lock, flags); | |
565 | --portdata->outstanding_urbs; | |
40d2ff32 EP |
566 | dev_dbg(&port->dev, "%s - 2. outstanding_urbs: %d\n", __func__, |
567 | portdata->outstanding_urbs); | |
17c23274 | 568 | spin_unlock_irqrestore(&portdata->lock, flags); |
e6929a90 ON |
569 | usb_autopm_put_interface_async(serial->interface); |
570 | error_simple: | |
40d2ff32 | 571 | return retval; |
033a3fb9 KL |
572 | } |
573 | ||
574 | static void sierra_indat_callback(struct urb *urb) | |
575 | { | |
576 | int err; | |
577 | int endpoint; | |
578 | struct usb_serial_port *port; | |
579 | struct tty_struct *tty; | |
580 | unsigned char *data = urb->transfer_buffer; | |
17dd2215 | 581 | int status = urb->status; |
033a3fb9 | 582 | |
033a3fb9 | 583 | endpoint = usb_pipeendpoint(urb->pipe); |
b0cda8c5 EP |
584 | port = urb->context; |
585 | ||
17dd2215 | 586 | if (status) { |
7384a922 | 587 | dev_dbg(&port->dev, "%s: nonzero status: %d on" |
5d44b361 | 588 | " endpoint %02x\n", __func__, status, endpoint); |
033a3fb9 | 589 | } else { |
033a3fb9 | 590 | if (urb->actual_length) { |
d95186d1 | 591 | tty = tty_port_tty_get(&port->port); |
b87c6e86 | 592 | if (tty) { |
b87c6e86 EP |
593 | tty_insert_flip_string(tty, data, |
594 | urb->actual_length); | |
595 | tty_flip_buffer_push(tty); | |
596 | ||
597 | tty_kref_put(tty); | |
59d33f2f GKH |
598 | usb_serial_debug_data(&port->dev, __func__, |
599 | urb->actual_length, data); | |
b87c6e86 | 600 | } |
b0cda8c5 | 601 | } else { |
7384a922 | 602 | dev_dbg(&port->dev, "%s: empty read urb" |
5d44b361 | 603 | " received\n", __func__); |
033a3fb9 KL |
604 | } |
605 | } | |
b0cda8c5 EP |
606 | |
607 | /* Resubmit urb so we continue receiving */ | |
1f87158e | 608 | if (status != -ESHUTDOWN && status != -EPERM) { |
e6929a90 | 609 | usb_mark_last_busy(port->serial->dev); |
b0cda8c5 | 610 | err = usb_submit_urb(urb, GFP_ATOMIC); |
1f87158e | 611 | if (err && err != -EPERM) |
b0cda8c5 EP |
612 | dev_err(&port->dev, "resubmit read urb failed." |
613 | "(%d)\n", err); | |
614 | } | |
033a3fb9 KL |
615 | } |
616 | ||
033a3fb9 KL |
617 | static void sierra_instat_callback(struct urb *urb) |
618 | { | |
619 | int err; | |
17dd2215 | 620 | int status = urb->status; |
cdc97792 | 621 | struct usb_serial_port *port = urb->context; |
033a3fb9 KL |
622 | struct sierra_port_private *portdata = usb_get_serial_port_data(port); |
623 | struct usb_serial *serial = port->serial; | |
624 | ||
5d44b361 | 625 | dev_dbg(&port->dev, "%s: urb %p port %p has data %p\n", __func__, |
7384a922 | 626 | urb, port, portdata); |
033a3fb9 | 627 | |
17dd2215 | 628 | if (status == 0) { |
033a3fb9 KL |
629 | struct usb_ctrlrequest *req_pkt = |
630 | (struct usb_ctrlrequest *)urb->transfer_buffer; | |
631 | ||
632 | if (!req_pkt) { | |
7384a922 KL |
633 | dev_dbg(&port->dev, "%s: NULL req_pkt\n", |
634 | __func__); | |
033a3fb9 KL |
635 | return; |
636 | } | |
637 | if ((req_pkt->bRequestType == 0xA1) && | |
638 | (req_pkt->bRequest == 0x20)) { | |
639 | int old_dcd_state; | |
640 | unsigned char signals = *((unsigned char *) | |
641 | urb->transfer_buffer + | |
642 | sizeof(struct usb_ctrlrequest)); | |
4a90f09b | 643 | struct tty_struct *tty; |
033a3fb9 | 644 | |
5d44b361 | 645 | dev_dbg(&port->dev, "%s: signal x%x\n", __func__, |
7384a922 | 646 | signals); |
033a3fb9 KL |
647 | |
648 | old_dcd_state = portdata->dcd_state; | |
649 | portdata->cts_state = 1; | |
650 | portdata->dcd_state = ((signals & 0x01) ? 1 : 0); | |
651 | portdata->dsr_state = ((signals & 0x02) ? 1 : 0); | |
652 | portdata->ri_state = ((signals & 0x08) ? 1 : 0); | |
653 | ||
4a90f09b AC |
654 | tty = tty_port_tty_get(&port->port); |
655 | if (tty && !C_CLOCAL(tty) && | |
033a3fb9 | 656 | old_dcd_state && !portdata->dcd_state) |
4a90f09b AC |
657 | tty_hangup(tty); |
658 | tty_kref_put(tty); | |
033a3fb9 | 659 | } else { |
5d44b361 | 660 | dev_dbg(&port->dev, "%s: type %x req %x\n", |
7384a922 KL |
661 | __func__, req_pkt->bRequestType, |
662 | req_pkt->bRequest); | |
033a3fb9 KL |
663 | } |
664 | } else | |
5d44b361 | 665 | dev_dbg(&port->dev, "%s: error %d\n", __func__, status); |
033a3fb9 KL |
666 | |
667 | /* Resubmit urb so we continue receiving IRQ data */ | |
1f87158e | 668 | if (status != -ESHUTDOWN && status != -ENOENT) { |
e6929a90 | 669 | usb_mark_last_busy(serial->dev); |
033a3fb9 | 670 | err = usb_submit_urb(urb, GFP_ATOMIC); |
1f87158e | 671 | if (err && err != -EPERM) |
c76a23da EP |
672 | dev_err(&port->dev, "%s: resubmit intr urb " |
673 | "failed. (%d)\n", __func__, err); | |
033a3fb9 KL |
674 | } |
675 | } | |
676 | ||
95da310e | 677 | static int sierra_write_room(struct tty_struct *tty) |
033a3fb9 | 678 | { |
95da310e | 679 | struct usb_serial_port *port = tty->driver_data; |
17c23274 GKH |
680 | struct sierra_port_private *portdata = usb_get_serial_port_data(port); |
681 | unsigned long flags; | |
033a3fb9 | 682 | |
17c23274 GKH |
683 | /* try to give a good number back based on if we have any free urbs at |
684 | * this point in time */ | |
685 | spin_lock_irqsave(&portdata->lock, flags); | |
3a2b808e | 686 | if (portdata->outstanding_urbs > (portdata->num_out_urbs * 2) / 3) { |
17c23274 | 687 | spin_unlock_irqrestore(&portdata->lock, flags); |
7384a922 | 688 | dev_dbg(&port->dev, "%s - write limit hit\n", __func__); |
17c23274 | 689 | return 0; |
033a3fb9 | 690 | } |
17c23274 | 691 | spin_unlock_irqrestore(&portdata->lock, flags); |
033a3fb9 | 692 | |
17c23274 | 693 | return 2048; |
033a3fb9 KL |
694 | } |
695 | ||
b9a44bc1 | 696 | static void sierra_stop_rx_urbs(struct usb_serial_port *port) |
033a3fb9 | 697 | { |
9e85c5f6 | 698 | int i; |
b9a44bc1 | 699 | struct sierra_port_private *portdata = usb_get_serial_port_data(port); |
033a3fb9 | 700 | |
3a2b808e | 701 | for (i = 0; i < portdata->num_in_urbs; i++) |
b9a44bc1 | 702 | usb_kill_urb(portdata->in_urbs[i]); |
033a3fb9 | 703 | |
b9a44bc1 EP |
704 | usb_kill_urb(port->interrupt_in_urb); |
705 | } | |
033a3fb9 | 706 | |
b9a44bc1 EP |
707 | static int sierra_submit_rx_urbs(struct usb_serial_port *port, gfp_t mem_flags) |
708 | { | |
709 | int ok_cnt; | |
710 | int err = -EINVAL; | |
711 | int i; | |
712 | struct urb *urb; | |
713 | struct sierra_port_private *portdata = usb_get_serial_port_data(port); | |
033a3fb9 | 714 | |
b9a44bc1 | 715 | ok_cnt = 0; |
3a2b808e | 716 | for (i = 0; i < portdata->num_in_urbs; i++) { |
033a3fb9 | 717 | urb = portdata->in_urbs[i]; |
9e85c5f6 | 718 | if (!urb) |
033a3fb9 | 719 | continue; |
b9a44bc1 EP |
720 | err = usb_submit_urb(urb, mem_flags); |
721 | if (err) { | |
722 | dev_err(&port->dev, "%s: submit urb failed: %d\n", | |
723 | __func__, err); | |
724 | } else { | |
725 | ok_cnt++; | |
033a3fb9 | 726 | } |
b9a44bc1 | 727 | } |
033a3fb9 | 728 | |
b9a44bc1 EP |
729 | if (ok_cnt && port->interrupt_in_urb) { |
730 | err = usb_submit_urb(port->interrupt_in_urb, mem_flags); | |
731 | if (err) { | |
732 | dev_err(&port->dev, "%s: submit intr urb failed: %d\n", | |
733 | __func__, err); | |
033a3fb9 KL |
734 | } |
735 | } | |
736 | ||
b9a44bc1 EP |
737 | if (ok_cnt > 0) /* at least one rx urb submitted */ |
738 | return 0; | |
739 | else | |
740 | return err; | |
741 | } | |
742 | ||
743 | static struct urb *sierra_setup_urb(struct usb_serial *serial, int endpoint, | |
744 | int dir, void *ctx, int len, | |
745 | gfp_t mem_flags, | |
746 | usb_complete_t callback) | |
747 | { | |
748 | struct urb *urb; | |
749 | u8 *buf; | |
750 | ||
751 | if (endpoint == -1) | |
752 | return NULL; | |
033a3fb9 | 753 | |
b9a44bc1 EP |
754 | urb = usb_alloc_urb(0, mem_flags); |
755 | if (urb == NULL) { | |
756 | dev_dbg(&serial->dev->dev, "%s: alloc for endpoint %d failed\n", | |
757 | __func__, endpoint); | |
758 | return NULL; | |
9e85c5f6 | 759 | } |
b9a44bc1 EP |
760 | |
761 | buf = kmalloc(len, mem_flags); | |
762 | if (buf) { | |
763 | /* Fill URB using supplied data */ | |
764 | usb_fill_bulk_urb(urb, serial->dev, | |
765 | usb_sndbulkpipe(serial->dev, endpoint) | dir, | |
766 | buf, len, callback, ctx); | |
767 | ||
768 | /* debug */ | |
769 | dev_dbg(&serial->dev->dev, "%s %c u : %p d:%p\n", __func__, | |
770 | dir == USB_DIR_IN ? 'i' : 'o', urb, buf); | |
771 | } else { | |
772 | dev_dbg(&serial->dev->dev, "%s %c u:%p d:%p\n", __func__, | |
773 | dir == USB_DIR_IN ? 'i' : 'o', urb, buf); | |
774 | ||
775 | sierra_release_urb(urb); | |
776 | urb = NULL; | |
777 | } | |
778 | ||
779 | return urb; | |
033a3fb9 KL |
780 | } |
781 | ||
b9a44bc1 | 782 | static void sierra_close(struct usb_serial_port *port) |
033a3fb9 | 783 | { |
b9a44bc1 | 784 | int i; |
033a3fb9 KL |
785 | struct usb_serial *serial = port->serial; |
786 | struct sierra_port_private *portdata; | |
e6929a90 ON |
787 | struct sierra_intf_private *intfdata = port->serial->private; |
788 | ||
033a3fb9 | 789 | portdata = usb_get_serial_port_data(port); |
b9a44bc1 EP |
790 | |
791 | portdata->rts_state = 0; | |
792 | portdata->dtr_state = 0; | |
033a3fb9 KL |
793 | |
794 | if (serial->dev) { | |
e33fe4d8 | 795 | mutex_lock(&serial->disc_mutex); |
b64dc0a5 EP |
796 | if (!serial->disconnected) { |
797 | serial->interface->needs_remote_wakeup = 0; | |
5b7c1178 ON |
798 | /* odd error handling due to pm counters */ |
799 | if (!usb_autopm_get_interface(serial->interface)) | |
800 | sierra_send_setup(port); | |
801 | else | |
802 | usb_autopm_get_interface_no_resume(serial->interface); | |
803 | ||
b64dc0a5 | 804 | } |
e33fe4d8 | 805 | mutex_unlock(&serial->disc_mutex); |
e6929a90 ON |
806 | spin_lock_irq(&intfdata->susp_lock); |
807 | portdata->opened = 0; | |
808 | spin_unlock_irq(&intfdata->susp_lock); | |
809 | ||
b9a44bc1 EP |
810 | |
811 | /* Stop reading urbs */ | |
812 | sierra_stop_rx_urbs(port); | |
813 | /* .. and release them */ | |
3a2b808e | 814 | for (i = 0; i < portdata->num_in_urbs; i++) { |
b9a44bc1 EP |
815 | sierra_release_urb(portdata->in_urbs[i]); |
816 | portdata->in_urbs[i] = NULL; | |
817 | } | |
335f8514 AC |
818 | } |
819 | } | |
820 | ||
a509a7e4 | 821 | static int sierra_open(struct tty_struct *tty, struct usb_serial_port *port) |
335f8514 | 822 | { |
b9a44bc1 EP |
823 | struct sierra_port_private *portdata; |
824 | struct usb_serial *serial = port->serial; | |
e6929a90 | 825 | struct sierra_intf_private *intfdata = serial->private; |
335f8514 | 826 | int i; |
b9a44bc1 EP |
827 | int err; |
828 | int endpoint; | |
829 | struct urb *urb; | |
830 | ||
831 | portdata = usb_get_serial_port_data(port); | |
832 | ||
b9a44bc1 EP |
833 | /* Set some sane defaults */ |
834 | portdata->rts_state = 1; | |
835 | portdata->dtr_state = 1; | |
836 | ||
837 | ||
838 | endpoint = port->bulk_in_endpointAddress; | |
3a2b808e | 839 | for (i = 0; i < portdata->num_in_urbs; i++) { |
b9a44bc1 EP |
840 | urb = sierra_setup_urb(serial, endpoint, USB_DIR_IN, port, |
841 | IN_BUFLEN, GFP_KERNEL, | |
842 | sierra_indat_callback); | |
843 | portdata->in_urbs[i] = urb; | |
844 | } | |
845 | /* clear halt condition */ | |
846 | usb_clear_halt(serial->dev, | |
847 | usb_sndbulkpipe(serial->dev, endpoint) | USB_DIR_IN); | |
848 | ||
849 | err = sierra_submit_rx_urbs(port, GFP_KERNEL); | |
850 | if (err) { | |
851 | /* get rid of everything as in close */ | |
852 | sierra_close(port); | |
b64dc0a5 | 853 | /* restore balance for autopm */ |
5b7c1178 ON |
854 | if (!serial->disconnected) |
855 | usb_autopm_put_interface(serial->interface); | |
b9a44bc1 EP |
856 | return err; |
857 | } | |
858 | sierra_send_setup(port); | |
859 | ||
e6929a90 ON |
860 | serial->interface->needs_remote_wakeup = 1; |
861 | spin_lock_irq(&intfdata->susp_lock); | |
862 | portdata->opened = 1; | |
863 | spin_unlock_irq(&intfdata->susp_lock); | |
864 | usb_autopm_put_interface(serial->interface); | |
865 | ||
b9a44bc1 EP |
866 | return 0; |
867 | } | |
868 | ||
869 | ||
870 | static void sierra_dtr_rts(struct usb_serial_port *port, int on) | |
871 | { | |
335f8514 AC |
872 | struct usb_serial *serial = port->serial; |
873 | struct sierra_port_private *portdata; | |
033a3fb9 | 874 | |
335f8514 | 875 | portdata = usb_get_serial_port_data(port); |
b9a44bc1 EP |
876 | portdata->rts_state = on; |
877 | portdata->dtr_state = on; | |
335f8514 AC |
878 | |
879 | if (serial->dev) { | |
b9a44bc1 EP |
880 | mutex_lock(&serial->disc_mutex); |
881 | if (!serial->disconnected) | |
882 | sierra_send_setup(port); | |
883 | mutex_unlock(&serial->disc_mutex); | |
033a3fb9 | 884 | } |
033a3fb9 KL |
885 | } |
886 | ||
033a3fb9 KL |
887 | static int sierra_startup(struct usb_serial *serial) |
888 | { | |
033a3fb9 KL |
889 | struct usb_serial_port *port; |
890 | struct sierra_port_private *portdata; | |
3a2b808e | 891 | struct sierra_iface_info *himemoryp = NULL; |
9e85c5f6 | 892 | int i; |
3a2b808e | 893 | u8 ifnum; |
033a3fb9 | 894 | |
228426ed | 895 | /* Set Device mode to D0 */ |
112225b1 KL |
896 | sierra_set_power_state(serial->dev, 0x0000); |
897 | ||
228426ed KL |
898 | /* Check NMEA and set */ |
899 | if (nmea) | |
900 | sierra_vsc_set_nmea(serial->dev, 1); | |
901 | ||
033a3fb9 KL |
902 | /* Now setup per port private data */ |
903 | for (i = 0; i < serial->num_ports; i++) { | |
904 | port = serial->port[i]; | |
905 | portdata = kzalloc(sizeof(*portdata), GFP_KERNEL); | |
906 | if (!portdata) { | |
7384a922 | 907 | dev_dbg(&port->dev, "%s: kmalloc for " |
3a2b808e | 908 | "sierra_port_private (%d) failed!\n", |
7384a922 | 909 | __func__, i); |
17c23274 | 910 | return -ENOMEM; |
033a3fb9 | 911 | } |
17c23274 | 912 | spin_lock_init(&portdata->lock); |
e6929a90 ON |
913 | init_usb_anchor(&portdata->active); |
914 | init_usb_anchor(&portdata->delayed); | |
3a2b808e EP |
915 | ifnum = i; |
916 | /* Assume low memory requirements */ | |
917 | portdata->num_out_urbs = N_OUT_URB; | |
918 | portdata->num_in_urbs = N_IN_URB; | |
919 | ||
920 | /* Determine actual memory requirements */ | |
921 | if (serial->num_ports == 1) { | |
922 | /* Get interface number for composite device */ | |
923 | ifnum = sierra_calc_interface(serial); | |
924 | himemoryp = | |
925 | (struct sierra_iface_info *)&typeB_interface_list; | |
926 | if (is_himemory(ifnum, himemoryp)) { | |
927 | portdata->num_out_urbs = N_OUT_URB_HM; | |
928 | portdata->num_in_urbs = N_IN_URB_HM; | |
929 | } | |
930 | } | |
931 | else { | |
932 | himemoryp = | |
933 | (struct sierra_iface_info *)&typeA_interface_list; | |
934 | if (is_himemory(i, himemoryp)) { | |
935 | portdata->num_out_urbs = N_OUT_URB_HM; | |
936 | portdata->num_in_urbs = N_IN_URB_HM; | |
937 | } | |
938 | } | |
939 | dev_dbg(&serial->dev->dev, | |
940 | "Memory usage (urbs) interface #%d, in=%d, out=%d\n", | |
941 | ifnum,portdata->num_in_urbs, portdata->num_out_urbs ); | |
b9a44bc1 | 942 | /* Set the port private data pointer */ |
033a3fb9 | 943 | usb_set_serial_port_data(port, portdata); |
033a3fb9 KL |
944 | } |
945 | ||
17c23274 | 946 | return 0; |
033a3fb9 KL |
947 | } |
948 | ||
7bae0a07 | 949 | static void sierra_release(struct usb_serial *serial) |
033a3fb9 | 950 | { |
b9a44bc1 | 951 | int i; |
033a3fb9 KL |
952 | struct usb_serial_port *port; |
953 | struct sierra_port_private *portdata; | |
954 | ||
033a3fb9 KL |
955 | for (i = 0; i < serial->num_ports; ++i) { |
956 | port = serial->port[i]; | |
f094e4f3 GKH |
957 | if (!port) |
958 | continue; | |
033a3fb9 | 959 | portdata = usb_get_serial_port_data(port); |
f094e4f3 GKH |
960 | if (!portdata) |
961 | continue; | |
9e85c5f6 | 962 | kfree(portdata); |
033a3fb9 KL |
963 | } |
964 | } | |
965 | ||
cd604513 | 966 | #ifdef CONFIG_PM |
e6929a90 ON |
967 | static void stop_read_write_urbs(struct usb_serial *serial) |
968 | { | |
b64dc0a5 | 969 | int i; |
e6929a90 ON |
970 | struct usb_serial_port *port; |
971 | struct sierra_port_private *portdata; | |
972 | ||
973 | /* Stop reading/writing urbs */ | |
974 | for (i = 0; i < serial->num_ports; ++i) { | |
975 | port = serial->port[i]; | |
976 | portdata = usb_get_serial_port_data(port); | |
b64dc0a5 | 977 | sierra_stop_rx_urbs(port); |
e6929a90 ON |
978 | usb_kill_anchored_urbs(&portdata->active); |
979 | } | |
980 | } | |
981 | ||
982 | static int sierra_suspend(struct usb_serial *serial, pm_message_t message) | |
983 | { | |
984 | struct sierra_intf_private *intfdata; | |
985 | int b; | |
986 | ||
5b1b0b81 | 987 | if (PMSG_IS_AUTO(message)) { |
e6929a90 ON |
988 | intfdata = serial->private; |
989 | spin_lock_irq(&intfdata->susp_lock); | |
990 | b = intfdata->in_flight; | |
991 | ||
992 | if (b) { | |
993 | spin_unlock_irq(&intfdata->susp_lock); | |
994 | return -EBUSY; | |
995 | } else { | |
996 | intfdata->suspended = 1; | |
997 | spin_unlock_irq(&intfdata->susp_lock); | |
998 | } | |
999 | } | |
1000 | stop_read_write_urbs(serial); | |
1001 | ||
1002 | return 0; | |
1003 | } | |
1004 | ||
1005 | static int sierra_resume(struct usb_serial *serial) | |
1006 | { | |
1007 | struct usb_serial_port *port; | |
1008 | struct sierra_intf_private *intfdata = serial->private; | |
1009 | struct sierra_port_private *portdata; | |
1010 | struct urb *urb; | |
1011 | int ec = 0; | |
1012 | int i, err; | |
1013 | ||
1014 | spin_lock_irq(&intfdata->susp_lock); | |
1015 | for (i = 0; i < serial->num_ports; i++) { | |
1016 | port = serial->port[i]; | |
1017 | portdata = usb_get_serial_port_data(port); | |
1018 | ||
1019 | while ((urb = usb_get_from_anchor(&portdata->delayed))) { | |
1020 | usb_anchor_urb(urb, &portdata->active); | |
1021 | intfdata->in_flight++; | |
1022 | err = usb_submit_urb(urb, GFP_ATOMIC); | |
1023 | if (err < 0) { | |
1024 | intfdata->in_flight--; | |
1025 | usb_unanchor_urb(urb); | |
1026 | usb_scuttle_anchored_urbs(&portdata->delayed); | |
1027 | break; | |
1028 | } | |
1029 | } | |
1030 | ||
1031 | if (portdata->opened) { | |
1032 | err = sierra_submit_rx_urbs(port, GFP_ATOMIC); | |
1033 | if (err) | |
1034 | ec++; | |
1035 | } | |
1036 | } | |
1037 | intfdata->suspended = 0; | |
1038 | spin_unlock_irq(&intfdata->susp_lock); | |
1039 | ||
1040 | return ec ? -EIO : 0; | |
1041 | } | |
7650cd96 | 1042 | |
cd604513 AM |
1043 | #else |
1044 | #define sierra_suspend NULL | |
1045 | #define sierra_resume NULL | |
1046 | #endif | |
e6929a90 | 1047 | |
228426ed | 1048 | static struct usb_serial_driver sierra_device = { |
964ee1de GKH |
1049 | .driver = { |
1050 | .owner = THIS_MODULE, | |
4e0fee82 | 1051 | .name = "sierra", |
964ee1de | 1052 | }, |
228426ed KL |
1053 | .description = "Sierra USB modem", |
1054 | .id_table = id_table, | |
228426ed KL |
1055 | .calc_num_ports = sierra_calc_num_ports, |
1056 | .probe = sierra_probe, | |
964ee1de GKH |
1057 | .open = sierra_open, |
1058 | .close = sierra_close, | |
335f8514 | 1059 | .dtr_rts = sierra_dtr_rts, |
964ee1de GKH |
1060 | .write = sierra_write, |
1061 | .write_room = sierra_write_room, | |
964ee1de | 1062 | .set_termios = sierra_set_termios, |
964ee1de GKH |
1063 | .tiocmget = sierra_tiocmget, |
1064 | .tiocmset = sierra_tiocmset, | |
1065 | .attach = sierra_startup, | |
7bae0a07 | 1066 | .release = sierra_release, |
e6929a90 ON |
1067 | .suspend = sierra_suspend, |
1068 | .resume = sierra_resume, | |
964ee1de GKH |
1069 | .read_int_callback = sierra_instat_callback, |
1070 | }; | |
1071 | ||
d860322f AS |
1072 | static struct usb_serial_driver * const serial_drivers[] = { |
1073 | &sierra_device, NULL | |
1074 | }; | |
1075 | ||
68e24113 | 1076 | module_usb_serial_driver(serial_drivers, id_table); |
964ee1de | 1077 | |
033a3fb9 KL |
1078 | MODULE_AUTHOR(DRIVER_AUTHOR); |
1079 | MODULE_DESCRIPTION(DRIVER_DESC); | |
1080 | MODULE_VERSION(DRIVER_VERSION); | |
69de51fd | 1081 | MODULE_LICENSE("GPL"); |
033a3fb9 | 1082 | |
4e0fee82 | 1083 | module_param(nmea, bool, S_IRUGO | S_IWUSR); |
228426ed KL |
1084 | MODULE_PARM_DESC(nmea, "NMEA streaming"); |
1085 | ||
033a3fb9 KL |
1086 | module_param(debug, bool, S_IRUGO | S_IWUSR); |
1087 | MODULE_PARM_DESC(debug, "Debug messages"); |