diff options
Diffstat (limited to 'drivers')
-rw-r--r-- | drivers/net/Makefile | 1 | ||||
-rw-r--r-- | drivers/net/usb/Kconfig | 10 | ||||
-rw-r--r-- | drivers/net/usb/Makefile | 1 | ||||
-rw-r--r-- | drivers/net/usb/hso.c | 2836 |
4 files changed, 2848 insertions, 0 deletions
diff --git a/drivers/net/Makefile b/drivers/net/Makefile index c52738a3aaab..c96fe2036800 100644 --- a/drivers/net/Makefile +++ b/drivers/net/Makefile | |||
@@ -237,6 +237,7 @@ obj-$(CONFIG_USB_CATC) += usb/ | |||
237 | obj-$(CONFIG_USB_KAWETH) += usb/ | 237 | obj-$(CONFIG_USB_KAWETH) += usb/ |
238 | obj-$(CONFIG_USB_PEGASUS) += usb/ | 238 | obj-$(CONFIG_USB_PEGASUS) += usb/ |
239 | obj-$(CONFIG_USB_RTL8150) += usb/ | 239 | obj-$(CONFIG_USB_RTL8150) += usb/ |
240 | obj-$(CONFIG_USB_HSO) += usb/ | ||
240 | obj-$(CONFIG_USB_USBNET) += usb/ | 241 | obj-$(CONFIG_USB_USBNET) += usb/ |
241 | obj-$(CONFIG_USB_ZD1201) += usb/ | 242 | obj-$(CONFIG_USB_ZD1201) += usb/ |
242 | 243 | ||
diff --git a/drivers/net/usb/Kconfig b/drivers/net/usb/Kconfig index 0604f3faf043..68e198bd538b 100644 --- a/drivers/net/usb/Kconfig +++ b/drivers/net/usb/Kconfig | |||
@@ -154,6 +154,16 @@ config USB_NET_AX8817X | |||
154 | This driver creates an interface named "ethX", where X depends on | 154 | This driver creates an interface named "ethX", where X depends on |
155 | what other networking devices you have in use. | 155 | what other networking devices you have in use. |
156 | 156 | ||
157 | config USB_HSO | ||
158 | tristate "Option USB High Speed Mobile Devices" | ||
159 | depends on USB && RFKILL | ||
160 | default n | ||
161 | help | ||
162 | Choose this option if you have an Option HSDPA/HSUPA card. | ||
163 | These cards support downlink speeds of 7.2Mbps or greater. | ||
164 | |||
165 | To compile this driver as a module, choose M here: the | ||
166 | module will be called hso. | ||
157 | 167 | ||
158 | config USB_NET_CDCETHER | 168 | config USB_NET_CDCETHER |
159 | tristate "CDC Ethernet support (smart devices such as cable modems)" | 169 | tristate "CDC Ethernet support (smart devices such as cable modems)" |
diff --git a/drivers/net/usb/Makefile b/drivers/net/usb/Makefile index 595a539f8384..24800c157f98 100644 --- a/drivers/net/usb/Makefile +++ b/drivers/net/usb/Makefile | |||
@@ -6,6 +6,7 @@ obj-$(CONFIG_USB_CATC) += catc.o | |||
6 | obj-$(CONFIG_USB_KAWETH) += kaweth.o | 6 | obj-$(CONFIG_USB_KAWETH) += kaweth.o |
7 | obj-$(CONFIG_USB_PEGASUS) += pegasus.o | 7 | obj-$(CONFIG_USB_PEGASUS) += pegasus.o |
8 | obj-$(CONFIG_USB_RTL8150) += rtl8150.o | 8 | obj-$(CONFIG_USB_RTL8150) += rtl8150.o |
9 | obj-$(CONFIG_USB_HSO) += hso.o | ||
9 | obj-$(CONFIG_USB_NET_AX8817X) += asix.o | 10 | obj-$(CONFIG_USB_NET_AX8817X) += asix.o |
10 | obj-$(CONFIG_USB_NET_CDCETHER) += cdc_ether.o | 11 | obj-$(CONFIG_USB_NET_CDCETHER) += cdc_ether.o |
11 | obj-$(CONFIG_USB_NET_DM9601) += dm9601.o | 12 | obj-$(CONFIG_USB_NET_DM9601) += dm9601.o |
diff --git a/drivers/net/usb/hso.c b/drivers/net/usb/hso.c new file mode 100644 index 000000000000..031d07b105af --- /dev/null +++ b/drivers/net/usb/hso.c | |||
@@ -0,0 +1,2836 @@ | |||
1 | /****************************************************************************** | ||
2 | * | ||
3 | * Driver for Option High Speed Mobile Devices. | ||
4 | * | ||
5 | * Copyright (C) 2008 Option International | ||
6 | * Copyright (C) 2007 Andrew Bird (Sphere Systems Ltd) | ||
7 | * <ajb@spheresystems.co.uk> | ||
8 | * Copyright (C) 2008 Greg Kroah-Hartman <gregkh@suse.de> | ||
9 | * Copyright (C) 2008 Novell, Inc. | ||
10 | * | ||
11 | * This program is free software; you can redistribute it and/or modify | ||
12 | * it under the terms of the GNU General Public License version 2 as | ||
13 | * published by the Free Software Foundation. | ||
14 | * | ||
15 | * This program is distributed in the hope that it will be useful, | ||
16 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | ||
17 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | ||
18 | * GNU General Public License for more details. | ||
19 | * | ||
20 | * You should have received a copy of the GNU General Public License | ||
21 | * along with this program; if not, write to the Free Software | ||
22 | * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, | ||
23 | * USA | ||
24 | * | ||
25 | * | ||
26 | *****************************************************************************/ | ||
27 | |||
28 | /****************************************************************************** | ||
29 | * | ||
30 | * Description of the device: | ||
31 | * | ||
32 | * Interface 0: Contains the IP network interface on the bulk end points. | ||
33 | * The multiplexed serial ports are using the interrupt and | ||
34 | * control endpoints. | ||
35 | * Interrupt contains a bitmap telling which multiplexed | ||
36 | * serialport needs servicing. | ||
37 | * | ||
38 | * Interface 1: Diagnostics port, uses bulk only, do not submit urbs until the | ||
39 | * port is opened, as this have a huge impact on the network port | ||
40 | * throughput. | ||
41 | * | ||
42 | * Interface 2: Standard modem interface - circuit switched interface, should | ||
43 | * not be used. | ||
44 | * | ||
45 | *****************************************************************************/ | ||
46 | |||
47 | #include <linux/sched.h> | ||
48 | #include <linux/slab.h> | ||
49 | #include <linux/init.h> | ||
50 | #include <linux/delay.h> | ||
51 | #include <linux/netdevice.h> | ||
52 | #include <linux/module.h> | ||
53 | #include <linux/ethtool.h> | ||
54 | #include <linux/usb.h> | ||
55 | #include <linux/timer.h> | ||
56 | #include <linux/tty.h> | ||
57 | #include <linux/tty_driver.h> | ||
58 | #include <linux/tty_flip.h> | ||
59 | #include <linux/kmod.h> | ||
60 | #include <linux/rfkill.h> | ||
61 | #include <linux/ip.h> | ||
62 | #include <linux/uaccess.h> | ||
63 | #include <linux/usb/cdc.h> | ||
64 | #include <net/arp.h> | ||
65 | #include <asm/byteorder.h> | ||
66 | |||
67 | |||
68 | #define DRIVER_VERSION "1.2" | ||
69 | #define MOD_AUTHOR "Option Wireless" | ||
70 | #define MOD_DESCRIPTION "USB High Speed Option driver" | ||
71 | #define MOD_LICENSE "GPL" | ||
72 | |||
73 | #define HSO_MAX_NET_DEVICES 10 | ||
74 | #define HSO__MAX_MTU 2048 | ||
75 | #define DEFAULT_MTU 1500 | ||
76 | #define DEFAULT_MRU 1500 | ||
77 | |||
78 | #define CTRL_URB_RX_SIZE 1024 | ||
79 | #define CTRL_URB_TX_SIZE 64 | ||
80 | |||
81 | #define BULK_URB_RX_SIZE 4096 | ||
82 | #define BULK_URB_TX_SIZE 8192 | ||
83 | |||
84 | #define MUX_BULK_RX_BUF_SIZE HSO__MAX_MTU | ||
85 | #define MUX_BULK_TX_BUF_SIZE HSO__MAX_MTU | ||
86 | #define MUX_BULK_RX_BUF_COUNT 4 | ||
87 | #define USB_TYPE_OPTION_VENDOR 0x20 | ||
88 | |||
89 | /* These definitions are used with the struct hso_net flags element */ | ||
90 | /* - use *_bit operations on it. (bit indices not values.) */ | ||
91 | #define HSO_NET_RUNNING 0 | ||
92 | |||
93 | #define HSO_NET_TX_TIMEOUT (HZ*10) | ||
94 | |||
95 | /* Serial port defines and structs. */ | ||
96 | #define HSO_SERIAL_FLAG_RX_SENT 0 | ||
97 | |||
98 | #define HSO_SERIAL_MAGIC 0x48534f31 | ||
99 | |||
100 | /* Number of ttys to handle */ | ||
101 | #define HSO_SERIAL_TTY_MINORS 256 | ||
102 | |||
103 | #define MAX_RX_URBS 2 | ||
104 | |||
105 | #define get_serial_by_tty(x) \ | ||
106 | (x ? (struct hso_serial *)x->driver_data : NULL) | ||
107 | |||
108 | /*****************************************************************************/ | ||
109 | /* Debugging functions */ | ||
110 | /*****************************************************************************/ | ||
111 | #define D__(lvl_, fmt, arg...) \ | ||
112 | do { \ | ||
113 | printk(lvl_ "[%d:%s]: " fmt "\n", \ | ||
114 | __LINE__, __func__, ## arg); \ | ||
115 | } while (0) | ||
116 | |||
117 | #define D_(lvl, args...) \ | ||
118 | do { \ | ||
119 | if (lvl & debug) \ | ||
120 | D__(KERN_INFO, args); \ | ||
121 | } while (0) | ||
122 | |||
123 | #define D1(args...) D_(0x01, ##args) | ||
124 | #define D2(args...) D_(0x02, ##args) | ||
125 | #define D3(args...) D_(0x04, ##args) | ||
126 | #define D4(args...) D_(0x08, ##args) | ||
127 | #define D5(args...) D_(0x10, ##args) | ||
128 | |||
129 | /*****************************************************************************/ | ||
130 | /* Enumerators */ | ||
131 | /*****************************************************************************/ | ||
132 | enum pkt_parse_state { | ||
133 | WAIT_IP, | ||
134 | WAIT_DATA, | ||
135 | WAIT_SYNC | ||
136 | }; | ||
137 | |||
138 | /*****************************************************************************/ | ||
139 | /* Structs */ | ||
140 | /*****************************************************************************/ | ||
141 | |||
142 | struct hso_shared_int { | ||
143 | struct usb_endpoint_descriptor *intr_endp; | ||
144 | void *shared_intr_buf; | ||
145 | struct urb *shared_intr_urb; | ||
146 | struct usb_device *usb; | ||
147 | int use_count; | ||
148 | int ref_count; | ||
149 | struct mutex shared_int_lock; | ||
150 | }; | ||
151 | |||
152 | struct hso_net { | ||
153 | struct hso_device *parent; | ||
154 | struct net_device *net; | ||
155 | struct rfkill *rfkill; | ||
156 | |||
157 | struct usb_endpoint_descriptor *in_endp; | ||
158 | struct usb_endpoint_descriptor *out_endp; | ||
159 | |||
160 | struct urb *mux_bulk_rx_urb_pool[MUX_BULK_RX_BUF_COUNT]; | ||
161 | struct urb *mux_bulk_tx_urb; | ||
162 | void *mux_bulk_rx_buf_pool[MUX_BULK_RX_BUF_COUNT]; | ||
163 | void *mux_bulk_tx_buf; | ||
164 | |||
165 | struct sk_buff *skb_rx_buf; | ||
166 | struct sk_buff *skb_tx_buf; | ||
167 | |||
168 | enum pkt_parse_state rx_parse_state; | ||
169 | spinlock_t net_lock; | ||
170 | |||
171 | unsigned short rx_buf_size; | ||
172 | unsigned short rx_buf_missing; | ||
173 | struct iphdr rx_ip_hdr; | ||
174 | |||
175 | unsigned long flags; | ||
176 | }; | ||
177 | |||
178 | struct hso_serial { | ||
179 | struct hso_device *parent; | ||
180 | int magic; | ||
181 | u8 minor; | ||
182 | |||
183 | struct hso_shared_int *shared_int; | ||
184 | |||
185 | /* rx/tx urb could be either a bulk urb or a control urb depending | ||
186 | on which serial port it is used on. */ | ||
187 | struct urb *rx_urb[MAX_RX_URBS]; | ||
188 | u8 num_rx_urbs; | ||
189 | u8 *rx_data[MAX_RX_URBS]; | ||
190 | u16 rx_data_length; /* should contain allocated length */ | ||
191 | |||
192 | struct urb *tx_urb; | ||
193 | u8 *tx_data; | ||
194 | u8 *tx_buffer; | ||
195 | u16 tx_data_length; /* should contain allocated length */ | ||
196 | u16 tx_data_count; | ||
197 | u16 tx_buffer_count; | ||
198 | struct usb_ctrlrequest ctrl_req_tx; | ||
199 | struct usb_ctrlrequest ctrl_req_rx; | ||
200 | |||
201 | struct usb_endpoint_descriptor *in_endp; | ||
202 | struct usb_endpoint_descriptor *out_endp; | ||
203 | |||
204 | unsigned long flags; | ||
205 | u8 rts_state; | ||
206 | u8 dtr_state; | ||
207 | unsigned tx_urb_used:1; | ||
208 | |||
209 | /* from usb_serial_port */ | ||
210 | struct tty_struct *tty; | ||
211 | int open_count; | ||
212 | spinlock_t serial_lock; | ||
213 | |||
214 | int (*write_data) (struct hso_serial *serial); | ||
215 | }; | ||
216 | |||
217 | struct hso_device { | ||
218 | union { | ||
219 | struct hso_serial *dev_serial; | ||
220 | struct hso_net *dev_net; | ||
221 | } port_data; | ||
222 | |||
223 | u32 port_spec; | ||
224 | |||
225 | u8 is_active; | ||
226 | u8 usb_gone; | ||
227 | struct work_struct async_get_intf; | ||
228 | struct work_struct async_put_intf; | ||
229 | |||
230 | struct usb_device *usb; | ||
231 | struct usb_interface *interface; | ||
232 | |||
233 | struct device *dev; | ||
234 | struct kref ref; | ||
235 | struct mutex mutex; | ||
236 | }; | ||
237 | |||
238 | /* Type of interface */ | ||
239 | #define HSO_INTF_MASK 0xFF00 | ||
240 | #define HSO_INTF_MUX 0x0100 | ||
241 | #define HSO_INTF_BULK 0x0200 | ||
242 | |||
243 | /* Type of port */ | ||
244 | #define HSO_PORT_MASK 0xFF | ||
245 | #define HSO_PORT_NO_PORT 0x0 | ||
246 | #define HSO_PORT_CONTROL 0x1 | ||
247 | #define HSO_PORT_APP 0x2 | ||
248 | #define HSO_PORT_GPS 0x3 | ||
249 | #define HSO_PORT_PCSC 0x4 | ||
250 | #define HSO_PORT_APP2 0x5 | ||
251 | #define HSO_PORT_GPS_CONTROL 0x6 | ||
252 | #define HSO_PORT_MSD 0x7 | ||
253 | #define HSO_PORT_VOICE 0x8 | ||
254 | #define HSO_PORT_DIAG2 0x9 | ||
255 | #define HSO_PORT_DIAG 0x10 | ||
256 | #define HSO_PORT_MODEM 0x11 | ||
257 | #define HSO_PORT_NETWORK 0x12 | ||
258 | |||
259 | /* Additional device info */ | ||
260 | #define HSO_INFO_MASK 0xFF000000 | ||
261 | #define HSO_INFO_CRC_BUG 0x01000000 | ||
262 | |||
263 | /*****************************************************************************/ | ||
264 | /* Prototypes */ | ||
265 | /*****************************************************************************/ | ||
266 | /* Serial driver functions */ | ||
267 | static int hso_serial_tiocmset(struct tty_struct *tty, struct file *file, | ||
268 | unsigned int set, unsigned int clear); | ||
269 | static void ctrl_callback(struct urb *urb); | ||
270 | static void put_rxbuf_data(struct urb *urb, struct hso_serial *serial); | ||
271 | static void hso_kick_transmit(struct hso_serial *serial); | ||
272 | /* Helper functions */ | ||
273 | static int hso_mux_submit_intr_urb(struct hso_shared_int *mux_int, | ||
274 | struct usb_device *usb, gfp_t gfp); | ||
275 | static void log_usb_status(int status, const char *function); | ||
276 | static struct usb_endpoint_descriptor *hso_get_ep(struct usb_interface *intf, | ||
277 | int type, int dir); | ||
278 | static int hso_get_mux_ports(struct usb_interface *intf, unsigned char *ports); | ||
279 | static void hso_free_interface(struct usb_interface *intf); | ||
280 | static int hso_start_serial_device(struct hso_device *hso_dev, gfp_t flags); | ||
281 | static int hso_stop_serial_device(struct hso_device *hso_dev); | ||
282 | static int hso_start_net_device(struct hso_device *hso_dev); | ||
283 | static void hso_free_shared_int(struct hso_shared_int *shared_int); | ||
284 | static int hso_stop_net_device(struct hso_device *hso_dev); | ||
285 | static void hso_serial_ref_free(struct kref *ref); | ||
286 | static void async_get_intf(struct work_struct *data); | ||
287 | static void async_put_intf(struct work_struct *data); | ||
288 | static int hso_put_activity(struct hso_device *hso_dev); | ||
289 | static int hso_get_activity(struct hso_device *hso_dev); | ||
290 | |||
291 | /*****************************************************************************/ | ||
292 | /* Helping functions */ | ||
293 | /*****************************************************************************/ | ||
294 | |||
295 | /* #define DEBUG */ | ||
296 | |||
297 | #define dev2net(x) (x->port_data.dev_net) | ||
298 | #define dev2ser(x) (x->port_data.dev_serial) | ||
299 | |||
300 | /* Debugging functions */ | ||
301 | #ifdef DEBUG | ||
302 | static void dbg_dump(int line_count, const char *func_name, unsigned char *buf, | ||
303 | unsigned int len) | ||
304 | { | ||
305 | u8 i = 0; | ||
306 | |||
307 | printk(KERN_DEBUG "[%d:%s]: len %d", line_count, func_name, len); | ||
308 | |||
309 | for (i = 0; i < len; i++) { | ||
310 | if (!(i % 16)) | ||
311 | printk("\n 0x%03x: ", i); | ||
312 | printk("%02x ", (unsigned char)buf[i]); | ||
313 | } | ||
314 | printk("\n"); | ||
315 | } | ||
316 | |||
317 | #define DUMP(buf_, len_) \ | ||
318 | dbg_dump(__LINE__, __func__, buf_, len_) | ||
319 | |||
320 | #define DUMP1(buf_, len_) \ | ||
321 | do { \ | ||
322 | if (0x01 & debug) \ | ||
323 | DUMP(buf_, len_); \ | ||
324 | } while (0) | ||
325 | #else | ||
326 | #define DUMP(buf_, len_) | ||
327 | #define DUMP1(buf_, len_) | ||
328 | #endif | ||
329 | |||
330 | /* module parameters */ | ||
331 | static int debug; | ||
332 | static int tty_major; | ||
333 | static int disable_net; | ||
334 | |||
335 | /* driver info */ | ||
336 | static const char driver_name[] = "hso"; | ||
337 | static const char tty_filename[] = "ttyHS"; | ||
338 | static const char *version = __FILE__ ": " DRIVER_VERSION " " MOD_AUTHOR; | ||
339 | /* the usb driver itself (registered in hso_init) */ | ||
340 | static struct usb_driver hso_driver; | ||
341 | /* serial structures */ | ||
342 | static struct tty_driver *tty_drv; | ||
343 | static struct hso_device *serial_table[HSO_SERIAL_TTY_MINORS]; | ||
344 | static struct hso_device *network_table[HSO_MAX_NET_DEVICES]; | ||
345 | static spinlock_t serial_table_lock; | ||
346 | static struct ktermios *hso_serial_termios[HSO_SERIAL_TTY_MINORS]; | ||
347 | static struct ktermios *hso_serial_termios_locked[HSO_SERIAL_TTY_MINORS]; | ||
348 | |||
349 | static const s32 default_port_spec[] = { | ||
350 | HSO_INTF_MUX | HSO_PORT_NETWORK, | ||
351 | HSO_INTF_BULK | HSO_PORT_DIAG, | ||
352 | HSO_INTF_BULK | HSO_PORT_MODEM, | ||
353 | 0 | ||
354 | }; | ||
355 | |||
356 | static const s32 icon321_port_spec[] = { | ||
357 | HSO_INTF_MUX | HSO_PORT_NETWORK, | ||
358 | HSO_INTF_BULK | HSO_PORT_DIAG2, | ||
359 | HSO_INTF_BULK | HSO_PORT_MODEM, | ||
360 | HSO_INTF_BULK | HSO_PORT_DIAG, | ||
361 | 0 | ||
362 | }; | ||
363 | |||
364 | #define default_port_device(vendor, product) \ | ||
365 | USB_DEVICE(vendor, product), \ | ||
366 | .driver_info = (kernel_ulong_t)default_port_spec | ||
367 | |||
368 | #define icon321_port_device(vendor, product) \ | ||
369 | USB_DEVICE(vendor, product), \ | ||
370 | .driver_info = (kernel_ulong_t)icon321_port_spec | ||
371 | |||
372 | /* list of devices we support */ | ||
373 | static const struct usb_device_id hso_ids[] = { | ||
374 | {default_port_device(0x0af0, 0x6711)}, | ||
375 | {default_port_device(0x0af0, 0x6731)}, | ||
376 | {default_port_device(0x0af0, 0x6751)}, | ||
377 | {default_port_device(0x0af0, 0x6771)}, | ||
378 | {default_port_device(0x0af0, 0x6791)}, | ||
379 | {default_port_device(0x0af0, 0x6811)}, | ||
380 | {default_port_device(0x0af0, 0x6911)}, | ||
381 | {default_port_device(0x0af0, 0x6951)}, | ||
382 | {default_port_device(0x0af0, 0x6971)}, | ||
383 | {default_port_device(0x0af0, 0x7011)}, | ||
384 | {default_port_device(0x0af0, 0x7031)}, | ||
385 | {default_port_device(0x0af0, 0x7051)}, | ||
386 | {default_port_device(0x0af0, 0x7071)}, | ||
387 | {default_port_device(0x0af0, 0x7111)}, | ||
388 | {default_port_device(0x0af0, 0x7211)}, | ||
389 | {default_port_device(0x0af0, 0x7251)}, | ||
390 | {default_port_device(0x0af0, 0x7271)}, | ||
391 | {default_port_device(0x0af0, 0x7311)}, | ||
392 | {default_port_device(0x0af0, 0xc031)}, /* Icon-Edge */ | ||
393 | {icon321_port_device(0x0af0, 0xd013)}, /* Module HSxPA */ | ||
394 | {icon321_port_device(0x0af0, 0xd031)}, /* Icon-321 */ | ||
395 | {default_port_device(0x0af0, 0xd033)}, /* Icon-322 */ | ||
396 | {USB_DEVICE(0x0af0, 0x7301)}, /* GE40x */ | ||
397 | {USB_DEVICE(0x0af0, 0x7361)}, /* GE40x */ | ||
398 | {USB_DEVICE(0x0af0, 0x7401)}, /* GI 0401 */ | ||
399 | {USB_DEVICE(0x0af0, 0x7501)}, /* GTM 382 */ | ||
400 | {USB_DEVICE(0x0af0, 0x7601)}, /* GE40x */ | ||
401 | {} | ||
402 | }; | ||
403 | MODULE_DEVICE_TABLE(usb, hso_ids); | ||
404 | |||
405 | /* Sysfs attribute */ | ||
406 | static ssize_t hso_sysfs_show_porttype(struct device *dev, | ||
407 | struct device_attribute *attr, | ||
408 | char *buf) | ||
409 | { | ||
410 | struct hso_device *hso_dev = dev->driver_data; | ||
411 | char *port_name; | ||
412 | |||
413 | if (!hso_dev) | ||
414 | return 0; | ||
415 | |||
416 | switch (hso_dev->port_spec & HSO_PORT_MASK) { | ||
417 | case HSO_PORT_CONTROL: | ||
418 | port_name = "Control"; | ||
419 | break; | ||
420 | case HSO_PORT_APP: | ||
421 | port_name = "Application"; | ||
422 | break; | ||
423 | case HSO_PORT_APP2: | ||
424 | port_name = "Application2"; | ||
425 | break; | ||
426 | case HSO_PORT_GPS: | ||
427 | port_name = "GPS"; | ||
428 | break; | ||
429 | case HSO_PORT_GPS_CONTROL: | ||
430 | port_name = "GPS Control"; | ||
431 | break; | ||
432 | case HSO_PORT_PCSC: | ||
433 | port_name = "PCSC"; | ||
434 | break; | ||
435 | case HSO_PORT_DIAG: | ||
436 | port_name = "Diagnostic"; | ||
437 | break; | ||
438 | case HSO_PORT_DIAG2: | ||
439 | port_name = "Diagnostic2"; | ||
440 | break; | ||
441 | case HSO_PORT_MODEM: | ||
442 | port_name = "Modem"; | ||
443 | break; | ||
444 | case HSO_PORT_NETWORK: | ||
445 | port_name = "Network"; | ||
446 | break; | ||
447 | default: | ||
448 | port_name = "Unknown"; | ||
449 | break; | ||
450 | } | ||
451 | |||
452 | return sprintf(buf, "%s\n", port_name); | ||
453 | } | ||
454 | static DEVICE_ATTR(hsotype, S_IRUGO, hso_sysfs_show_porttype, NULL); | ||
455 | |||
456 | /* converts mux value to a port spec value */ | ||
457 | static u32 hso_mux_to_port(int mux) | ||
458 | { | ||
459 | u32 result; | ||
460 | |||
461 | switch (mux) { | ||
462 | case 0x1: | ||
463 | result = HSO_PORT_CONTROL; | ||
464 | break; | ||
465 | case 0x2: | ||
466 | result = HSO_PORT_APP; | ||
467 | break; | ||
468 | case 0x4: | ||
469 | result = HSO_PORT_PCSC; | ||
470 | break; | ||
471 | case 0x8: | ||
472 | result = HSO_PORT_GPS; | ||
473 | break; | ||
474 | case 0x10: | ||
475 | result = HSO_PORT_APP2; | ||
476 | break; | ||
477 | default: | ||
478 | result = HSO_PORT_NO_PORT; | ||
479 | } | ||
480 | return result; | ||
481 | } | ||
482 | |||
483 | /* converts port spec value to a mux value */ | ||
484 | static u32 hso_port_to_mux(int port) | ||
485 | { | ||
486 | u32 result; | ||
487 | |||
488 | switch (port & HSO_PORT_MASK) { | ||
489 | case HSO_PORT_CONTROL: | ||
490 | result = 0x0; | ||
491 | break; | ||
492 | case HSO_PORT_APP: | ||
493 | result = 0x1; | ||
494 | break; | ||
495 | case HSO_PORT_PCSC: | ||
496 | result = 0x2; | ||
497 | break; | ||
498 | case HSO_PORT_GPS: | ||
499 | result = 0x3; | ||
500 | break; | ||
501 | case HSO_PORT_APP2: | ||
502 | result = 0x4; | ||
503 | break; | ||
504 | default: | ||
505 | result = 0x0; | ||
506 | } | ||
507 | return result; | ||
508 | } | ||
509 | |||
510 | static struct hso_serial *get_serial_by_shared_int_and_type( | ||
511 | struct hso_shared_int *shared_int, | ||
512 | int mux) | ||
513 | { | ||
514 | int i, port; | ||
515 | |||
516 | port = hso_mux_to_port(mux); | ||
517 | |||
518 | for (i = 0; i < HSO_SERIAL_TTY_MINORS; i++) { | ||
519 | if (serial_table[i] | ||
520 | && (dev2ser(serial_table[i])->shared_int == shared_int) | ||
521 | && ((serial_table[i]->port_spec & HSO_PORT_MASK) == port)) { | ||
522 | return dev2ser(serial_table[i]); | ||
523 | } | ||
524 | } | ||
525 | |||
526 | return NULL; | ||
527 | } | ||
528 | |||
529 | static struct hso_serial *get_serial_by_index(unsigned index) | ||
530 | { | ||
531 | struct hso_serial *serial; | ||
532 | unsigned long flags; | ||
533 | |||
534 | if (!serial_table[index]) | ||
535 | return NULL; | ||
536 | spin_lock_irqsave(&serial_table_lock, flags); | ||
537 | serial = dev2ser(serial_table[index]); | ||
538 | spin_unlock_irqrestore(&serial_table_lock, flags); | ||
539 | |||
540 | return serial; | ||
541 | } | ||
542 | |||
543 | static int get_free_serial_index(void) | ||
544 | { | ||
545 | int index; | ||
546 | unsigned long flags; | ||
547 | |||
548 | spin_lock_irqsave(&serial_table_lock, flags); | ||
549 | for (index = 0; index < HSO_SERIAL_TTY_MINORS; index++) { | ||
550 | if (serial_table[index] == NULL) { | ||
551 | spin_unlock_irqrestore(&serial_table_lock, flags); | ||
552 | return index; | ||
553 | } | ||
554 | } | ||
555 | spin_unlock_irqrestore(&serial_table_lock, flags); | ||
556 | |||
557 | printk(KERN_ERR "%s: no free serial devices in table\n", __func__); | ||
558 | return -1; | ||
559 | } | ||
560 | |||
561 | static void set_serial_by_index(unsigned index, struct hso_serial *serial) | ||
562 | { | ||
563 | unsigned long flags; | ||
564 | spin_lock_irqsave(&serial_table_lock, flags); | ||
565 | if (serial) | ||
566 | serial_table[index] = serial->parent; | ||
567 | else | ||
568 | serial_table[index] = NULL; | ||
569 | spin_unlock_irqrestore(&serial_table_lock, flags); | ||
570 | } | ||
571 | |||
572 | /* log a meaningfull explanation of an USB status */ | ||
573 | static void log_usb_status(int status, const char *function) | ||
574 | { | ||
575 | char *explanation; | ||
576 | |||
577 | switch (status) { | ||
578 | case -ENODEV: | ||
579 | explanation = "no device"; | ||
580 | break; | ||
581 | case -ENOENT: | ||
582 | explanation = "endpoint not enabled"; | ||
583 | break; | ||
584 | case -EPIPE: | ||
585 | explanation = "endpoint stalled"; | ||
586 | break; | ||
587 | case -ENOSPC: | ||
588 | explanation = "not enough bandwidth"; | ||
589 | break; | ||
590 | case -ESHUTDOWN: | ||
591 | explanation = "device disabled"; | ||
592 | break; | ||
593 | case -EHOSTUNREACH: | ||
594 | explanation = "device suspended"; | ||
595 | break; | ||
596 | case -EINVAL: | ||
597 | case -EAGAIN: | ||
598 | case -EFBIG: | ||
599 | case -EMSGSIZE: | ||
600 | explanation = "internal error"; | ||
601 | break; | ||
602 | default: | ||
603 | explanation = "unknown status"; | ||
604 | break; | ||
605 | } | ||
606 | D1("%s: received USB status - %s (%d)", function, explanation, status); | ||
607 | } | ||
608 | |||
609 | /* Network interface functions */ | ||
610 | |||
611 | /* called when net interface is brought up by ifconfig */ | ||
612 | static int hso_net_open(struct net_device *net) | ||
613 | { | ||
614 | struct hso_net *odev = netdev_priv(net); | ||
615 | unsigned long flags = 0; | ||
616 | |||
617 | if (!odev) { | ||
618 | dev_err(&net->dev, "No net device !\n"); | ||
619 | return -ENODEV; | ||
620 | } | ||
621 | |||
622 | odev->skb_tx_buf = NULL; | ||
623 | |||
624 | /* setup environment */ | ||
625 | spin_lock_irqsave(&odev->net_lock, flags); | ||
626 | odev->rx_parse_state = WAIT_IP; | ||
627 | odev->rx_buf_size = 0; | ||
628 | odev->rx_buf_missing = sizeof(struct iphdr); | ||
629 | spin_unlock_irqrestore(&odev->net_lock, flags); | ||
630 | |||
631 | hso_start_net_device(odev->parent); | ||
632 | |||
633 | /* We are up and running. */ | ||
634 | set_bit(HSO_NET_RUNNING, &odev->flags); | ||
635 | |||
636 | /* Tell the kernel we are ready to start receiving from it */ | ||
637 | netif_start_queue(net); | ||
638 | |||
639 | return 0; | ||
640 | } | ||
641 | |||
642 | /* called when interface is brought down by ifconfig */ | ||
643 | static int hso_net_close(struct net_device *net) | ||
644 | { | ||
645 | struct hso_net *odev = netdev_priv(net); | ||
646 | |||
647 | /* we don't need the queue anymore */ | ||
648 | netif_stop_queue(net); | ||
649 | /* no longer running */ | ||
650 | clear_bit(HSO_NET_RUNNING, &odev->flags); | ||
651 | |||
652 | hso_stop_net_device(odev->parent); | ||
653 | |||
654 | /* done */ | ||
655 | return 0; | ||
656 | } | ||
657 | |||
658 | /* USB tells is xmit done, we should start the netqueue again */ | ||
659 | static void write_bulk_callback(struct urb *urb) | ||
660 | { | ||
661 | struct hso_net *odev = urb->context; | ||
662 | int status = urb->status; | ||
663 | |||
664 | /* Sanity check */ | ||
665 | if (!odev || !test_bit(HSO_NET_RUNNING, &odev->flags)) { | ||
666 | dev_err(&urb->dev->dev, "%s: device not running\n", __func__); | ||
667 | return; | ||
668 | } | ||
669 | |||
670 | /* Do we still have a valid kernel network device? */ | ||
671 | if (!netif_device_present(odev->net)) { | ||
672 | dev_err(&urb->dev->dev, "%s: net device not present\n", | ||
673 | __func__); | ||
674 | return; | ||
675 | } | ||
676 | |||
677 | /* log status, but don't act on it, we don't need to resubmit anything | ||
678 | * anyhow */ | ||
679 | if (status) | ||
680 | log_usb_status(status, __func__); | ||
681 | |||
682 | hso_put_activity(odev->parent); | ||
683 | |||
684 | /* Tell the network interface we are ready for another frame */ | ||
685 | netif_wake_queue(odev->net); | ||
686 | } | ||
687 | |||
688 | /* called by kernel when we need to transmit a packet */ | ||
689 | static int hso_net_start_xmit(struct sk_buff *skb, struct net_device *net) | ||
690 | { | ||
691 | struct hso_net *odev = netdev_priv(net); | ||
692 | int result; | ||
693 | |||
694 | /* Tell the kernel, "No more frames 'til we are done with this one." */ | ||
695 | netif_stop_queue(net); | ||
696 | if (hso_get_activity(odev->parent) == -EAGAIN) { | ||
697 | odev->skb_tx_buf = skb; | ||
698 | return 0; | ||
699 | } | ||
700 | |||
701 | /* log if asked */ | ||
702 | DUMP1(skb->data, skb->len); | ||
703 | /* Copy it from kernel memory to OUR memory */ | ||
704 | memcpy(odev->mux_bulk_tx_buf, skb->data, skb->len); | ||
705 | D1("len: %d/%d", skb->len, MUX_BULK_TX_BUF_SIZE); | ||
706 | |||
707 | /* Fill in the URB for shipping it out. */ | ||
708 | usb_fill_bulk_urb(odev->mux_bulk_tx_urb, | ||
709 | odev->parent->usb, | ||
710 | usb_sndbulkpipe(odev->parent->usb, | ||
711 | odev->out_endp-> | ||
712 | bEndpointAddress & 0x7F), | ||
713 | odev->mux_bulk_tx_buf, skb->len, write_bulk_callback, | ||
714 | odev); | ||
715 | |||
716 | /* Deal with the Zero Length packet problem, I hope */ | ||
717 | odev->mux_bulk_tx_urb->transfer_flags |= URB_ZERO_PACKET; | ||
718 | |||
719 | /* Send the URB on its merry way. */ | ||
720 | result = usb_submit_urb(odev->mux_bulk_tx_urb, GFP_ATOMIC); | ||
721 | if (result) { | ||
722 | dev_warn(&odev->parent->interface->dev, | ||
723 | "failed mux_bulk_tx_urb %d", result); | ||
724 | net->stats.tx_errors++; | ||
725 | netif_start_queue(net); | ||
726 | } else { | ||
727 | net->stats.tx_packets++; | ||
728 | net->stats.tx_bytes += skb->len; | ||
729 | /* And tell the kernel when the last transmit started. */ | ||
730 | net->trans_start = jiffies; | ||
731 | } | ||
732 | dev_kfree_skb(skb); | ||
733 | /* we're done */ | ||
734 | return result; | ||
735 | } | ||
736 | |||
737 | static void hso_get_drvinfo(struct net_device *net, struct ethtool_drvinfo *info) | ||
738 | { | ||
739 | struct hso_net *odev = netdev_priv(net); | ||
740 | |||
741 | strncpy(info->driver, driver_name, ETHTOOL_BUSINFO_LEN); | ||
742 | strncpy(info->version, DRIVER_VERSION, ETHTOOL_BUSINFO_LEN); | ||
743 | usb_make_path(odev->parent->usb, info->bus_info, sizeof info->bus_info); | ||
744 | } | ||
745 | |||
746 | static struct ethtool_ops ops = { | ||
747 | .get_drvinfo = hso_get_drvinfo, | ||
748 | .get_link = ethtool_op_get_link | ||
749 | }; | ||
750 | |||
751 | /* called when a packet did not ack after watchdogtimeout */ | ||
752 | static void hso_net_tx_timeout(struct net_device *net) | ||
753 | { | ||
754 | struct hso_net *odev = netdev_priv(net); | ||
755 | |||
756 | if (!odev) | ||
757 | return; | ||
758 | |||
759 | /* Tell syslog we are hosed. */ | ||
760 | dev_warn(&net->dev, "Tx timed out.\n"); | ||
761 | |||
762 | /* Tear the waiting frame off the list */ | ||
763 | if (odev->mux_bulk_tx_urb | ||
764 | && (odev->mux_bulk_tx_urb->status == -EINPROGRESS)) | ||
765 | usb_unlink_urb(odev->mux_bulk_tx_urb); | ||
766 | |||
767 | /* Update statistics */ | ||
768 | net->stats.tx_errors++; | ||
769 | } | ||
770 | |||
771 | /* make a real packet from the received USB buffer */ | ||
772 | static void packetizeRx(struct hso_net *odev, unsigned char *ip_pkt, | ||
773 | unsigned int count, unsigned char is_eop) | ||
774 | { | ||
775 | unsigned short temp_bytes; | ||
776 | unsigned short buffer_offset = 0; | ||
777 | unsigned short frame_len; | ||
778 | unsigned char *tmp_rx_buf; | ||
779 | |||
780 | /* log if needed */ | ||
781 | D1("Rx %d bytes", count); | ||
782 | DUMP(ip_pkt, min(128, (int)count)); | ||
783 | |||
784 | while (count) { | ||
785 | switch (odev->rx_parse_state) { | ||
786 | case WAIT_IP: | ||
787 | /* waiting for IP header. */ | ||
788 | /* wanted bytes - size of ip header */ | ||
789 | temp_bytes = | ||
790 | (count < | ||
791 | odev->rx_buf_missing) ? count : odev-> | ||
792 | rx_buf_missing; | ||
793 | |||
794 | memcpy(((unsigned char *)(&odev->rx_ip_hdr)) + | ||
795 | odev->rx_buf_size, ip_pkt + buffer_offset, | ||
796 | temp_bytes); | ||
797 | |||
798 | odev->rx_buf_size += temp_bytes; | ||
799 | buffer_offset += temp_bytes; | ||
800 | odev->rx_buf_missing -= temp_bytes; | ||
801 | count -= temp_bytes; | ||
802 | |||
803 | if (!odev->rx_buf_missing) { | ||
804 | /* header is complete allocate an sk_buffer and | ||
805 | * continue to WAIT_DATA */ | ||
806 | frame_len = ntohs(odev->rx_ip_hdr.tot_len); | ||
807 | |||
808 | if ((frame_len > DEFAULT_MRU) || | ||
809 | (frame_len < sizeof(struct iphdr))) { | ||
810 | dev_err(&odev->net->dev, | ||
811 | "Invalid frame (%d) length\n", | ||
812 | frame_len); | ||
813 | odev->rx_parse_state = WAIT_SYNC; | ||
814 | continue; | ||
815 | } | ||
816 | /* Allocate an sk_buff */ | ||
817 | odev->skb_rx_buf = dev_alloc_skb(frame_len); | ||
818 | if (!odev->skb_rx_buf) { | ||
819 | /* We got no receive buffer. */ | ||
820 | D1("could not allocate memory"); | ||
821 | odev->rx_parse_state = WAIT_SYNC; | ||
822 | return; | ||
823 | } | ||
824 | /* Here's where it came from */ | ||
825 | odev->skb_rx_buf->dev = odev->net; | ||
826 | |||
827 | /* Copy what we got so far. make room for iphdr | ||
828 | * after tail. */ | ||
829 | tmp_rx_buf = | ||
830 | skb_put(odev->skb_rx_buf, | ||
831 | sizeof(struct iphdr)); | ||
832 | memcpy(tmp_rx_buf, (char *)&(odev->rx_ip_hdr), | ||
833 | sizeof(struct iphdr)); | ||
834 | |||
835 | /* ETH_HLEN */ | ||
836 | odev->rx_buf_size = sizeof(struct iphdr); | ||
837 | |||
838 | /* Filip actually use .tot_len */ | ||
839 | odev->rx_buf_missing = | ||
840 | frame_len - sizeof(struct iphdr); | ||
841 | odev->rx_parse_state = WAIT_DATA; | ||
842 | } | ||
843 | break; | ||
844 | |||
845 | case WAIT_DATA: | ||
846 | temp_bytes = (count < odev->rx_buf_missing) | ||
847 | ? count : odev->rx_buf_missing; | ||
848 | |||
849 | /* Copy the rest of the bytes that are left in the | ||
850 | * buffer into the waiting sk_buf. */ | ||
851 | /* Make room for temp_bytes after tail. */ | ||
852 | tmp_rx_buf = skb_put(odev->skb_rx_buf, temp_bytes); | ||
853 | memcpy(tmp_rx_buf, ip_pkt + buffer_offset, temp_bytes); | ||
854 | |||
855 | odev->rx_buf_missing -= temp_bytes; | ||
856 | count -= temp_bytes; | ||
857 | buffer_offset += temp_bytes; | ||
858 | odev->rx_buf_size += temp_bytes; | ||
859 | if (!odev->rx_buf_missing) { | ||
860 | /* Packet is complete. Inject into stack. */ | ||
861 | /* We have IP packet here */ | ||
862 | odev->skb_rx_buf->protocol = | ||
863 | __constant_htons(ETH_P_IP); | ||
864 | /* don't check it */ | ||
865 | odev->skb_rx_buf->ip_summed = | ||
866 | CHECKSUM_UNNECESSARY; | ||
867 | |||
868 | skb_reset_mac_header(odev->skb_rx_buf); | ||
869 | |||
870 | /* Ship it off to the kernel */ | ||
871 | netif_rx(odev->skb_rx_buf); | ||
872 | /* No longer our buffer. */ | ||
873 | odev->skb_rx_buf = NULL; | ||
874 | |||
875 | /* update out statistics */ | ||
876 | odev->net->stats.rx_packets++; | ||
877 | |||
878 | odev->net->stats.rx_bytes += odev->rx_buf_size; | ||
879 | |||
880 | odev->rx_buf_size = 0; | ||
881 | odev->rx_buf_missing = sizeof(struct iphdr); | ||
882 | odev->rx_parse_state = WAIT_IP; | ||
883 | } | ||
884 | break; | ||
885 | |||
886 | case WAIT_SYNC: | ||
887 | D1(" W_S"); | ||
888 | count = 0; | ||
889 | break; | ||
890 | default: | ||
891 | D1(" "); | ||
892 | count--; | ||
893 | break; | ||
894 | } | ||
895 | } | ||
896 | |||
897 | /* Recovery mechanism for WAIT_SYNC state. */ | ||
898 | if (is_eop) { | ||
899 | if (odev->rx_parse_state == WAIT_SYNC) { | ||
900 | odev->rx_parse_state = WAIT_IP; | ||
901 | odev->rx_buf_size = 0; | ||
902 | odev->rx_buf_missing = sizeof(struct iphdr); | ||
903 | } | ||
904 | } | ||
905 | } | ||
906 | |||
907 | /* Moving data from usb to kernel (in interrupt state) */ | ||
908 | static void read_bulk_callback(struct urb *urb) | ||
909 | { | ||
910 | struct hso_net *odev = urb->context; | ||
911 | struct net_device *net; | ||
912 | int result; | ||
913 | int status = urb->status; | ||
914 | |||
915 | /* is al ok? (Filip: Who's Al ?) */ | ||
916 | if (status) { | ||
917 | log_usb_status(status, __func__); | ||
918 | return; | ||
919 | } | ||
920 | |||
921 | /* Sanity check */ | ||
922 | if (!odev || !test_bit(HSO_NET_RUNNING, &odev->flags)) { | ||
923 | D1("BULK IN callback but driver is not active!"); | ||
924 | return; | ||
925 | } | ||
926 | usb_mark_last_busy(urb->dev); | ||
927 | |||
928 | net = odev->net; | ||
929 | |||
930 | if (!netif_device_present(net)) { | ||
931 | /* Somebody killed our network interface... */ | ||
932 | return; | ||
933 | } | ||
934 | |||
935 | if (odev->parent->port_spec & HSO_INFO_CRC_BUG) { | ||
936 | u32 rest; | ||
937 | u8 crc_check[4] = { 0xDE, 0xAD, 0xBE, 0xEF }; | ||
938 | rest = urb->actual_length % odev->in_endp->wMaxPacketSize; | ||
939 | if (((rest == 5) || (rest == 6)) | ||
940 | && !memcmp(((u8 *) urb->transfer_buffer) + | ||
941 | urb->actual_length - 4, crc_check, 4)) { | ||
942 | urb->actual_length -= 4; | ||
943 | } | ||
944 | } | ||
945 | |||
946 | /* do we even have a packet? */ | ||
947 | if (urb->actual_length) { | ||
948 | /* Handle the IP stream, add header and push it onto network | ||
949 | * stack if the packet is complete. */ | ||
950 | spin_lock(&odev->net_lock); | ||
951 | packetizeRx(odev, urb->transfer_buffer, urb->actual_length, | ||
952 | (urb->transfer_buffer_length > | ||
953 | urb->actual_length) ? 1 : 0); | ||
954 | spin_unlock(&odev->net_lock); | ||
955 | } | ||
956 | |||
957 | /* We are done with this URB, resubmit it. Prep the USB to wait for | ||
958 | * another frame. Reuse same as received. */ | ||
959 | usb_fill_bulk_urb(urb, | ||
960 | odev->parent->usb, | ||
961 | usb_rcvbulkpipe(odev->parent->usb, | ||
962 | odev->in_endp-> | ||
963 | bEndpointAddress & 0x7F), | ||
964 | urb->transfer_buffer, MUX_BULK_RX_BUF_SIZE, | ||
965 | read_bulk_callback, odev); | ||
966 | |||
967 | /* Give this to the USB subsystem so it can tell us when more data | ||
968 | * arrives. */ | ||
969 | result = usb_submit_urb(urb, GFP_ATOMIC); | ||
970 | if (result) | ||
971 | dev_warn(&odev->parent->interface->dev, | ||
972 | "%s failed submit mux_bulk_rx_urb %d", __func__, | ||
973 | result); | ||
974 | } | ||
975 | |||
976 | /* Serial driver functions */ | ||
977 | |||
978 | static void _hso_serial_set_termios(struct tty_struct *tty, | ||
979 | struct ktermios *old) | ||
980 | { | ||
981 | struct hso_serial *serial = get_serial_by_tty(tty); | ||
982 | struct ktermios *termios; | ||
983 | |||
984 | if ((!tty) || (!tty->termios) || (!serial)) { | ||
985 | printk(KERN_ERR "%s: no tty structures", __func__); | ||
986 | return; | ||
987 | } | ||
988 | |||
989 | D4("port %d", serial->minor); | ||
990 | |||
991 | /* | ||
992 | * The default requirements for this device are: | ||
993 | */ | ||
994 | termios = tty->termios; | ||
995 | termios->c_iflag &= | ||
996 | ~(IGNBRK /* disable ignore break */ | ||
997 | | BRKINT /* disable break causes interrupt */ | ||
998 | | PARMRK /* disable mark parity errors */ | ||
999 | | ISTRIP /* disable clear high bit of input characters */ | ||
1000 | | INLCR /* disable translate NL to CR */ | ||
1001 | | IGNCR /* disable ignore CR */ | ||
1002 | | ICRNL /* disable translate CR to NL */ | ||
1003 | | IXON); /* disable enable XON/XOFF flow control */ | ||
1004 | |||
1005 | /* disable postprocess output characters */ | ||
1006 | termios->c_oflag &= ~OPOST; | ||
1007 | |||
1008 | termios->c_lflag &= | ||
1009 | ~(ECHO /* disable echo input characters */ | ||
1010 | | ECHONL /* disable echo new line */ | ||
1011 | | ICANON /* disable erase, kill, werase, and rprnt | ||
1012 | special characters */ | ||
1013 | | ISIG /* disable interrupt, quit, and suspend special | ||
1014 | characters */ | ||
1015 | | IEXTEN); /* disable non-POSIX special characters */ | ||
1016 | |||
1017 | termios->c_cflag &= | ||
1018 | ~(CSIZE /* no size */ | ||
1019 | | PARENB /* disable parity bit */ | ||
1020 | | CBAUD /* clear current baud rate */ | ||
1021 | | CBAUDEX); /* clear current buad rate */ | ||
1022 | |||
1023 | termios->c_cflag |= CS8; /* character size 8 bits */ | ||
1024 | |||
1025 | /* baud rate 115200 */ | ||
1026 | tty_encode_baud_rate(serial->tty, 115200, 115200); | ||
1027 | |||
1028 | /* | ||
1029 | * Force low_latency on; otherwise the pushes are scheduled; | ||
1030 | * this is bad as it opens up the possibility of dropping bytes | ||
1031 | * on the floor. We don't want to drop bytes on the floor. :) | ||
1032 | */ | ||
1033 | serial->tty->low_latency = 1; | ||
1034 | return; | ||
1035 | } | ||
1036 | |||
1037 | /* open the requested serial port */ | ||
1038 | static int hso_serial_open(struct tty_struct *tty, struct file *filp) | ||
1039 | { | ||
1040 | struct hso_serial *serial = get_serial_by_index(tty->index); | ||
1041 | int result; | ||
1042 | |||
1043 | /* sanity check */ | ||
1044 | if (serial == NULL || serial->magic != HSO_SERIAL_MAGIC) { | ||
1045 | tty->driver_data = NULL; | ||
1046 | D1("Failed to open port"); | ||
1047 | return -ENODEV; | ||
1048 | } | ||
1049 | |||
1050 | mutex_lock(&serial->parent->mutex); | ||
1051 | result = usb_autopm_get_interface(serial->parent->interface); | ||
1052 | if (result < 0) | ||
1053 | goto err_out; | ||
1054 | |||
1055 | D1("Opening %d", serial->minor); | ||
1056 | kref_get(&serial->parent->ref); | ||
1057 | |||
1058 | /* setup */ | ||
1059 | tty->driver_data = serial; | ||
1060 | serial->tty = tty; | ||
1061 | |||
1062 | /* check for port allready opened, if not set the termios */ | ||
1063 | serial->open_count++; | ||
1064 | if (serial->open_count == 1) { | ||
1065 | tty->low_latency = 1; | ||
1066 | serial->flags = 0; | ||
1067 | /* Force default termio settings */ | ||
1068 | _hso_serial_set_termios(tty, NULL); | ||
1069 | result = hso_start_serial_device(serial->parent, GFP_KERNEL); | ||
1070 | if (result) { | ||
1071 | hso_stop_serial_device(serial->parent); | ||
1072 | serial->open_count--; | ||
1073 | kref_put(&serial->parent->ref, hso_serial_ref_free); | ||
1074 | } | ||
1075 | } else { | ||
1076 | D1("Port was already open"); | ||
1077 | } | ||
1078 | |||
1079 | usb_autopm_put_interface(serial->parent->interface); | ||
1080 | |||
1081 | /* done */ | ||
1082 | if (result) | ||
1083 | hso_serial_tiocmset(tty, NULL, TIOCM_RTS | TIOCM_DTR, 0); | ||
1084 | err_out: | ||
1085 | mutex_unlock(&serial->parent->mutex); | ||
1086 | return result; | ||
1087 | } | ||
1088 | |||
1089 | /* close the requested serial port */ | ||
1090 | static void hso_serial_close(struct tty_struct *tty, struct file *filp) | ||
1091 | { | ||
1092 | struct hso_serial *serial = tty->driver_data; | ||
1093 | u8 usb_gone; | ||
1094 | |||
1095 | D1("Closing serial port"); | ||
1096 | |||
1097 | mutex_lock(&serial->parent->mutex); | ||
1098 | usb_gone = serial->parent->usb_gone; | ||
1099 | |||
1100 | if (!usb_gone) | ||
1101 | usb_autopm_get_interface(serial->parent->interface); | ||
1102 | |||
1103 | /* reset the rts and dtr */ | ||
1104 | /* do the actual close */ | ||
1105 | serial->open_count--; | ||
1106 | if (serial->open_count <= 0) { | ||
1107 | kref_put(&serial->parent->ref, hso_serial_ref_free); | ||
1108 | serial->open_count = 0; | ||
1109 | if (serial->tty) { | ||
1110 | serial->tty->driver_data = NULL; | ||
1111 | serial->tty = NULL; | ||
1112 | } | ||
1113 | if (!usb_gone) | ||
1114 | hso_stop_serial_device(serial->parent); | ||
1115 | } | ||
1116 | if (!usb_gone) | ||
1117 | usb_autopm_put_interface(serial->parent->interface); | ||
1118 | mutex_unlock(&serial->parent->mutex); | ||
1119 | } | ||
1120 | |||
1121 | /* close the requested serial port */ | ||
1122 | static int hso_serial_write(struct tty_struct *tty, const unsigned char *buf, | ||
1123 | int count) | ||
1124 | { | ||
1125 | struct hso_serial *serial = get_serial_by_tty(tty); | ||
1126 | int space, tx_bytes; | ||
1127 | unsigned long flags; | ||
1128 | |||
1129 | /* sanity check */ | ||
1130 | if (serial == NULL) { | ||
1131 | printk(KERN_ERR "%s: serial is NULL\n", __func__); | ||
1132 | return -ENODEV; | ||
1133 | } | ||
1134 | |||
1135 | spin_lock_irqsave(&serial->serial_lock, flags); | ||
1136 | |||
1137 | space = serial->tx_data_length - serial->tx_buffer_count; | ||
1138 | tx_bytes = (count < space) ? count : space; | ||
1139 | |||
1140 | if (!tx_bytes) | ||
1141 | goto out; | ||
1142 | |||
1143 | memcpy(serial->tx_buffer + serial->tx_buffer_count, buf, tx_bytes); | ||
1144 | serial->tx_buffer_count += tx_bytes; | ||
1145 | |||
1146 | out: | ||
1147 | spin_unlock_irqrestore(&serial->serial_lock, flags); | ||
1148 | |||
1149 | hso_kick_transmit(serial); | ||
1150 | /* done */ | ||
1151 | return tx_bytes; | ||
1152 | } | ||
1153 | |||
1154 | /* how much room is there for writing */ | ||
1155 | static int hso_serial_write_room(struct tty_struct *tty) | ||
1156 | { | ||
1157 | struct hso_serial *serial = get_serial_by_tty(tty); | ||
1158 | int room; | ||
1159 | unsigned long flags; | ||
1160 | |||
1161 | spin_lock_irqsave(&serial->serial_lock, flags); | ||
1162 | room = serial->tx_data_length - serial->tx_buffer_count; | ||
1163 | spin_unlock_irqrestore(&serial->serial_lock, flags); | ||
1164 | |||
1165 | /* return free room */ | ||
1166 | return room; | ||
1167 | } | ||
1168 | |||
1169 | /* setup the term */ | ||
1170 | static void hso_serial_set_termios(struct tty_struct *tty, struct ktermios *old) | ||
1171 | { | ||
1172 | struct hso_serial *serial = get_serial_by_tty(tty); | ||
1173 | unsigned long flags; | ||
1174 | |||
1175 | if (old) | ||
1176 | D5("Termios called with: cflags new[%d] - old[%d]", | ||
1177 | tty->termios->c_cflag, old->c_cflag); | ||
1178 | |||
1179 | /* the actual setup */ | ||
1180 | spin_lock_irqsave(&serial->serial_lock, flags); | ||
1181 | if (serial->open_count) | ||
1182 | _hso_serial_set_termios(tty, old); | ||
1183 | else | ||
1184 | tty->termios = old; | ||
1185 | spin_unlock_irqrestore(&serial->serial_lock, flags); | ||
1186 | |||
1187 | /* done */ | ||
1188 | return; | ||
1189 | } | ||
1190 | |||
1191 | /* how many characters in the buffer */ | ||
1192 | static int hso_serial_chars_in_buffer(struct tty_struct *tty) | ||
1193 | { | ||
1194 | struct hso_serial *serial = get_serial_by_tty(tty); | ||
1195 | int chars; | ||
1196 | unsigned long flags; | ||
1197 | |||
1198 | /* sanity check */ | ||
1199 | if (serial == NULL) | ||
1200 | return 0; | ||
1201 | |||
1202 | spin_lock_irqsave(&serial->serial_lock, flags); | ||
1203 | chars = serial->tx_buffer_count; | ||
1204 | spin_unlock_irqrestore(&serial->serial_lock, flags); | ||
1205 | |||
1206 | return chars; | ||
1207 | } | ||
1208 | |||
1209 | static int hso_serial_tiocmget(struct tty_struct *tty, struct file *file) | ||
1210 | { | ||
1211 | unsigned int value; | ||
1212 | struct hso_serial *serial = get_serial_by_tty(tty); | ||
1213 | unsigned long flags; | ||
1214 | |||
1215 | /* sanity check */ | ||
1216 | if (!serial) { | ||
1217 | D1("no tty structures"); | ||
1218 | return -EINVAL; | ||
1219 | } | ||
1220 | |||
1221 | spin_lock_irqsave(&serial->serial_lock, flags); | ||
1222 | value = ((serial->rts_state) ? TIOCM_RTS : 0) | | ||
1223 | ((serial->dtr_state) ? TIOCM_DTR : 0); | ||
1224 | spin_unlock_irqrestore(&serial->serial_lock, flags); | ||
1225 | |||
1226 | return value; | ||
1227 | } | ||
1228 | |||
1229 | static int hso_serial_tiocmset(struct tty_struct *tty, struct file *file, | ||
1230 | unsigned int set, unsigned int clear) | ||
1231 | { | ||
1232 | int val = 0; | ||
1233 | unsigned long flags; | ||
1234 | int if_num; | ||
1235 | struct hso_serial *serial = get_serial_by_tty(tty); | ||
1236 | |||
1237 | /* sanity check */ | ||
1238 | if (!serial) { | ||
1239 | D1("no tty structures"); | ||
1240 | return -EINVAL; | ||
1241 | } | ||
1242 | if_num = serial->parent->interface->altsetting->desc.bInterfaceNumber; | ||
1243 | |||
1244 | spin_lock_irqsave(&serial->serial_lock, flags); | ||
1245 | if (set & TIOCM_RTS) | ||
1246 | serial->rts_state = 1; | ||
1247 | if (set & TIOCM_DTR) | ||
1248 | serial->dtr_state = 1; | ||
1249 | |||
1250 | if (clear & TIOCM_RTS) | ||
1251 | serial->rts_state = 0; | ||
1252 | if (clear & TIOCM_DTR) | ||
1253 | serial->dtr_state = 0; | ||
1254 | |||
1255 | if (serial->dtr_state) | ||
1256 | val |= 0x01; | ||
1257 | if (serial->rts_state) | ||
1258 | val |= 0x02; | ||
1259 | |||
1260 | spin_unlock_irqrestore(&serial->serial_lock, flags); | ||
1261 | |||
1262 | return usb_control_msg(serial->parent->usb, | ||
1263 | usb_rcvctrlpipe(serial->parent->usb, 0), 0x22, | ||
1264 | 0x21, val, if_num, NULL, 0, | ||
1265 | USB_CTRL_SET_TIMEOUT); | ||
1266 | } | ||
1267 | |||
1268 | /* starts a transmit */ | ||
1269 | static void hso_kick_transmit(struct hso_serial *serial) | ||
1270 | { | ||
1271 | u8 *temp; | ||
1272 | unsigned long flags; | ||
1273 | int res; | ||
1274 | |||
1275 | spin_lock_irqsave(&serial->serial_lock, flags); | ||
1276 | if (!serial->tx_buffer_count) | ||
1277 | goto out; | ||
1278 | |||
1279 | if (serial->tx_urb_used) | ||
1280 | goto out; | ||
1281 | |||
1282 | /* Wakeup USB interface if necessary */ | ||
1283 | if (hso_get_activity(serial->parent) == -EAGAIN) | ||
1284 | goto out; | ||
1285 | |||
1286 | /* Switch pointers around to avoid memcpy */ | ||
1287 | temp = serial->tx_buffer; | ||
1288 | serial->tx_buffer = serial->tx_data; | ||
1289 | serial->tx_data = temp; | ||
1290 | serial->tx_data_count = serial->tx_buffer_count; | ||
1291 | serial->tx_buffer_count = 0; | ||
1292 | |||
1293 | /* If temp is set, it means we switched buffers */ | ||
1294 | if (temp && serial->write_data) { | ||
1295 | res = serial->write_data(serial); | ||
1296 | if (res >= 0) | ||
1297 | serial->tx_urb_used = 1; | ||
1298 | } | ||
1299 | out: | ||
1300 | spin_unlock_irqrestore(&serial->serial_lock, flags); | ||
1301 | } | ||
1302 | |||
1303 | /* make a request (for reading and writing data to muxed serial port) */ | ||
1304 | static int mux_device_request(struct hso_serial *serial, u8 type, u16 port, | ||
1305 | struct urb *ctrl_urb, | ||
1306 | struct usb_ctrlrequest *ctrl_req, | ||
1307 | u8 *ctrl_urb_data, u32 size) | ||
1308 | { | ||
1309 | int result; | ||
1310 | int pipe; | ||
1311 | |||
1312 | /* Sanity check */ | ||
1313 | if (!serial || !ctrl_urb || !ctrl_req) { | ||
1314 | printk(KERN_ERR "%s: Wrong arguments\n", __func__); | ||
1315 | return -EINVAL; | ||
1316 | } | ||
1317 | |||
1318 | /* initialize */ | ||
1319 | ctrl_req->wValue = 0; | ||
1320 | ctrl_req->wIndex = hso_port_to_mux(port); | ||
1321 | ctrl_req->wLength = size; | ||
1322 | |||
1323 | if (type == USB_CDC_GET_ENCAPSULATED_RESPONSE) { | ||
1324 | /* Reading command */ | ||
1325 | ctrl_req->bRequestType = USB_DIR_IN | | ||
1326 | USB_TYPE_OPTION_VENDOR | | ||
1327 | USB_RECIP_INTERFACE; | ||
1328 | ctrl_req->bRequest = USB_CDC_GET_ENCAPSULATED_RESPONSE; | ||
1329 | pipe = usb_rcvctrlpipe(serial->parent->usb, 0); | ||
1330 | } else { | ||
1331 | /* Writing command */ | ||
1332 | ctrl_req->bRequestType = USB_DIR_OUT | | ||
1333 | USB_TYPE_OPTION_VENDOR | | ||
1334 | USB_RECIP_INTERFACE; | ||
1335 | ctrl_req->bRequest = USB_CDC_SEND_ENCAPSULATED_COMMAND; | ||
1336 | pipe = usb_sndctrlpipe(serial->parent->usb, 0); | ||
1337 | } | ||
1338 | /* syslog */ | ||
1339 | D2("%s command (%02x) len: %d, port: %d", | ||
1340 | type == USB_CDC_GET_ENCAPSULATED_RESPONSE ? "Read" : "Write", | ||
1341 | ctrl_req->bRequestType, ctrl_req->wLength, port); | ||
1342 | |||
1343 | /* Load ctrl urb */ | ||
1344 | ctrl_urb->transfer_flags = 0; | ||
1345 | usb_fill_control_urb(ctrl_urb, | ||
1346 | serial->parent->usb, | ||
1347 | pipe, | ||
1348 | (u8 *) ctrl_req, | ||
1349 | ctrl_urb_data, size, ctrl_callback, serial); | ||
1350 | /* Send it on merry way */ | ||
1351 | result = usb_submit_urb(ctrl_urb, GFP_ATOMIC); | ||
1352 | if (result) { | ||
1353 | dev_err(&ctrl_urb->dev->dev, | ||
1354 | "%s failed submit ctrl_urb %d type %d", __func__, | ||
1355 | result, type); | ||
1356 | return result; | ||
1357 | } | ||
1358 | |||
1359 | /* done */ | ||
1360 | return size; | ||
1361 | } | ||
1362 | |||
1363 | /* called by intr_callback when read occurs */ | ||
1364 | static int hso_mux_serial_read(struct hso_serial *serial) | ||
1365 | { | ||
1366 | if (!serial) | ||
1367 | return -EINVAL; | ||
1368 | |||
1369 | /* clean data */ | ||
1370 | memset(serial->rx_data[0], 0, CTRL_URB_RX_SIZE); | ||
1371 | /* make the request */ | ||
1372 | |||
1373 | if (serial->num_rx_urbs != 1) { | ||
1374 | dev_err(&serial->parent->interface->dev, | ||
1375 | "ERROR: mux'd reads with multiple buffers " | ||
1376 | "not possible\n"); | ||
1377 | return 0; | ||
1378 | } | ||
1379 | return mux_device_request(serial, | ||
1380 | USB_CDC_GET_ENCAPSULATED_RESPONSE, | ||
1381 | serial->parent->port_spec & HSO_PORT_MASK, | ||
1382 | serial->rx_urb[0], | ||
1383 | &serial->ctrl_req_rx, | ||
1384 | serial->rx_data[0], serial->rx_data_length); | ||
1385 | } | ||
1386 | |||
1387 | /* used for muxed serial port callback (muxed serial read) */ | ||
1388 | static void intr_callback(struct urb *urb) | ||
1389 | { | ||
1390 | struct hso_shared_int *shared_int = urb->context; | ||
1391 | struct hso_serial *serial; | ||
1392 | unsigned char *port_req; | ||
1393 | int status = urb->status; | ||
1394 | int i; | ||
1395 | |||
1396 | usb_mark_last_busy(urb->dev); | ||
1397 | |||
1398 | /* sanity check */ | ||
1399 | if (!shared_int) | ||
1400 | return; | ||
1401 | |||
1402 | /* status check */ | ||
1403 | if (status) { | ||
1404 | log_usb_status(status, __func__); | ||
1405 | return; | ||
1406 | } | ||
1407 | D4("\n--- Got intr callback 0x%02X ---", status); | ||
1408 | |||
1409 | /* what request? */ | ||
1410 | port_req = urb->transfer_buffer; | ||
1411 | D4(" port_req = 0x%.2X\n", *port_req); | ||
1412 | /* loop over all muxed ports to find the one sending this */ | ||
1413 | for (i = 0; i < 8; i++) { | ||
1414 | /* max 8 channels on MUX */ | ||
1415 | if (*port_req & (1 << i)) { | ||
1416 | serial = get_serial_by_shared_int_and_type(shared_int, | ||
1417 | (1 << i)); | ||
1418 | if (serial != NULL) { | ||
1419 | D1("Pending read interrupt on port %d\n", i); | ||
1420 | if (!test_and_set_bit(HSO_SERIAL_FLAG_RX_SENT, | ||
1421 | &serial->flags)) { | ||
1422 | /* Setup and send a ctrl req read on | ||
1423 | * port i */ | ||
1424 | hso_mux_serial_read(serial); | ||
1425 | } else { | ||
1426 | D1("Already pending a read on " | ||
1427 | "port %d\n", i); | ||
1428 | } | ||
1429 | } | ||
1430 | } | ||
1431 | } | ||
1432 | /* Resubmit interrupt urb */ | ||
1433 | hso_mux_submit_intr_urb(shared_int, urb->dev, GFP_ATOMIC); | ||
1434 | } | ||
1435 | |||
1436 | /* called for writing to muxed serial port */ | ||
1437 | static int hso_mux_serial_write_data(struct hso_serial *serial) | ||
1438 | { | ||
1439 | if (NULL == serial) | ||
1440 | return -EINVAL; | ||
1441 | |||
1442 | return mux_device_request(serial, | ||
1443 | USB_CDC_SEND_ENCAPSULATED_COMMAND, | ||
1444 | serial->parent->port_spec & HSO_PORT_MASK, | ||
1445 | serial->tx_urb, | ||
1446 | &serial->ctrl_req_tx, | ||
1447 | serial->tx_data, serial->tx_data_count); | ||
1448 | } | ||
1449 | |||
1450 | /* write callback for Diag and CS port */ | ||
1451 | static void hso_std_serial_write_bulk_callback(struct urb *urb) | ||
1452 | { | ||
1453 | struct hso_serial *serial = urb->context; | ||
1454 | int status = urb->status; | ||
1455 | |||
1456 | /* sanity check */ | ||
1457 | if (!serial) { | ||
1458 | D1("serial == NULL"); | ||
1459 | return; | ||
1460 | } | ||
1461 | |||
1462 | spin_lock(&serial->serial_lock); | ||
1463 | serial->tx_urb_used = 0; | ||
1464 | spin_unlock(&serial->serial_lock); | ||
1465 | if (status) { | ||
1466 | log_usb_status(status, __func__); | ||
1467 | return; | ||
1468 | } | ||
1469 | hso_put_activity(serial->parent); | ||
1470 | tty_wakeup(serial->tty); | ||
1471 | hso_kick_transmit(serial); | ||
1472 | |||
1473 | D1(" "); | ||
1474 | return; | ||
1475 | } | ||
1476 | |||
1477 | /* called for writing diag or CS serial port */ | ||
1478 | static int hso_std_serial_write_data(struct hso_serial *serial) | ||
1479 | { | ||
1480 | int count = serial->tx_data_count; | ||
1481 | int result; | ||
1482 | |||
1483 | usb_fill_bulk_urb(serial->tx_urb, | ||
1484 | serial->parent->usb, | ||
1485 | usb_sndbulkpipe(serial->parent->usb, | ||
1486 | serial->out_endp-> | ||
1487 | bEndpointAddress & 0x7F), | ||
1488 | serial->tx_data, serial->tx_data_count, | ||
1489 | hso_std_serial_write_bulk_callback, serial); | ||
1490 | |||
1491 | result = usb_submit_urb(serial->tx_urb, GFP_ATOMIC); | ||
1492 | if (result) { | ||
1493 | dev_warn(&serial->parent->usb->dev, | ||
1494 | "Failed to submit urb - res %d\n", result); | ||
1495 | return result; | ||
1496 | } | ||
1497 | |||
1498 | return count; | ||
1499 | } | ||
1500 | |||
1501 | /* callback after read or write on muxed serial port */ | ||
1502 | static void ctrl_callback(struct urb *urb) | ||
1503 | { | ||
1504 | struct hso_serial *serial = urb->context; | ||
1505 | struct usb_ctrlrequest *req; | ||
1506 | int status = urb->status; | ||
1507 | |||
1508 | /* sanity check */ | ||
1509 | if (!serial) | ||
1510 | return; | ||
1511 | |||
1512 | spin_lock(&serial->serial_lock); | ||
1513 | serial->tx_urb_used = 0; | ||
1514 | spin_unlock(&serial->serial_lock); | ||
1515 | if (status) { | ||
1516 | log_usb_status(status, __func__); | ||
1517 | return; | ||
1518 | } | ||
1519 | |||
1520 | /* what request? */ | ||
1521 | req = (struct usb_ctrlrequest *)(urb->setup_packet); | ||
1522 | D4("\n--- Got muxed ctrl callback 0x%02X ---", status); | ||
1523 | D4("Actual length of urb = %d\n", urb->actual_length); | ||
1524 | DUMP1(urb->transfer_buffer, urb->actual_length); | ||
1525 | |||
1526 | if (req->bRequestType == | ||
1527 | (USB_DIR_IN | USB_TYPE_OPTION_VENDOR | USB_RECIP_INTERFACE)) { | ||
1528 | /* response to a read command */ | ||
1529 | if (serial->open_count > 0) { | ||
1530 | /* handle RX data the normal way */ | ||
1531 | put_rxbuf_data(urb, serial); | ||
1532 | } | ||
1533 | |||
1534 | /* Re issue a read as long as we receive data. */ | ||
1535 | if (urb->actual_length != 0) | ||
1536 | hso_mux_serial_read(serial); | ||
1537 | else | ||
1538 | clear_bit(HSO_SERIAL_FLAG_RX_SENT, &serial->flags); | ||
1539 | } else { | ||
1540 | hso_put_activity(serial->parent); | ||
1541 | tty_wakeup(serial->tty); | ||
1542 | /* response to a write command */ | ||
1543 | hso_kick_transmit(serial); | ||
1544 | } | ||
1545 | } | ||
1546 | |||
1547 | /* handle RX data for serial port */ | ||
1548 | static void put_rxbuf_data(struct urb *urb, struct hso_serial *serial) | ||
1549 | { | ||
1550 | struct tty_struct *tty = serial->tty; | ||
1551 | |||
1552 | /* Sanity check */ | ||
1553 | if (urb == NULL || serial == NULL) { | ||
1554 | D1("serial = NULL"); | ||
1555 | return; | ||
1556 | } | ||
1557 | |||
1558 | /* Push data to tty */ | ||
1559 | if (tty && urb->actual_length) { | ||
1560 | D1("data to push to tty"); | ||
1561 | tty_insert_flip_string(tty, urb->transfer_buffer, | ||
1562 | urb->actual_length); | ||
1563 | tty_flip_buffer_push(tty); | ||
1564 | } | ||
1565 | } | ||
1566 | |||
1567 | /* read callback for Diag and CS port */ | ||
1568 | static void hso_std_serial_read_bulk_callback(struct urb *urb) | ||
1569 | { | ||
1570 | struct hso_serial *serial = urb->context; | ||
1571 | int result; | ||
1572 | int status = urb->status; | ||
1573 | |||
1574 | /* sanity check */ | ||
1575 | if (!serial) { | ||
1576 | D1("serial == NULL"); | ||
1577 | return; | ||
1578 | } else if (status) { | ||
1579 | log_usb_status(status, __func__); | ||
1580 | return; | ||
1581 | } | ||
1582 | |||
1583 | D4("\n--- Got serial_read_bulk callback %02x ---", status); | ||
1584 | D1("Actual length = %d\n", urb->actual_length); | ||
1585 | DUMP1(urb->transfer_buffer, urb->actual_length); | ||
1586 | |||
1587 | /* Anyone listening? */ | ||
1588 | if (serial->open_count == 0) | ||
1589 | return; | ||
1590 | |||
1591 | if (status == 0) { | ||
1592 | if (serial->parent->port_spec & HSO_INFO_CRC_BUG) { | ||
1593 | u32 rest; | ||
1594 | u8 crc_check[4] = { 0xDE, 0xAD, 0xBE, 0xEF }; | ||
1595 | rest = | ||
1596 | urb->actual_length % | ||
1597 | serial->in_endp->wMaxPacketSize; | ||
1598 | if (((rest == 5) || (rest == 6)) | ||
1599 | && !memcmp(((u8 *) urb->transfer_buffer) + | ||
1600 | urb->actual_length - 4, crc_check, 4)) { | ||
1601 | urb->actual_length -= 4; | ||
1602 | } | ||
1603 | } | ||
1604 | /* Valid data, handle RX data */ | ||
1605 | put_rxbuf_data(urb, serial); | ||
1606 | } else if (status == -ENOENT || status == -ECONNRESET) { | ||
1607 | /* Unlinked - check for throttled port. */ | ||
1608 | D2("Port %d, successfully unlinked urb", serial->minor); | ||
1609 | } else { | ||
1610 | D2("Port %d, status = %d for read urb", serial->minor, status); | ||
1611 | return; | ||
1612 | } | ||
1613 | |||
1614 | usb_mark_last_busy(urb->dev); | ||
1615 | |||
1616 | /* We are done with this URB, resubmit it. Prep the USB to wait for | ||
1617 | * another frame */ | ||
1618 | usb_fill_bulk_urb(urb, serial->parent->usb, | ||
1619 | usb_rcvbulkpipe(serial->parent->usb, | ||
1620 | serial->in_endp-> | ||
1621 | bEndpointAddress & 0x7F), | ||
1622 | urb->transfer_buffer, serial->rx_data_length, | ||
1623 | hso_std_serial_read_bulk_callback, serial); | ||
1624 | /* Give this to the USB subsystem so it can tell us when more data | ||
1625 | * arrives. */ | ||
1626 | result = usb_submit_urb(urb, GFP_ATOMIC); | ||
1627 | if (result) { | ||
1628 | dev_err(&urb->dev->dev, "%s failed submit serial rx_urb %d", | ||
1629 | __func__, result); | ||
1630 | } | ||
1631 | } | ||
1632 | |||
1633 | /* Base driver functions */ | ||
1634 | |||
1635 | static void hso_log_port(struct hso_device *hso_dev) | ||
1636 | { | ||
1637 | char *port_type; | ||
1638 | char port_dev[20]; | ||
1639 | |||
1640 | switch (hso_dev->port_spec & HSO_PORT_MASK) { | ||
1641 | case HSO_PORT_CONTROL: | ||
1642 | port_type = "Control"; | ||
1643 | break; | ||
1644 | case HSO_PORT_APP: | ||
1645 | port_type = "Application"; | ||
1646 | break; | ||
1647 | case HSO_PORT_GPS: | ||
1648 | port_type = "GPS"; | ||
1649 | break; | ||
1650 | case HSO_PORT_GPS_CONTROL: | ||
1651 | port_type = "GPS control"; | ||
1652 | break; | ||
1653 | case HSO_PORT_APP2: | ||
1654 | port_type = "Application2"; | ||
1655 | break; | ||
1656 | case HSO_PORT_PCSC: | ||
1657 | port_type = "PCSC"; | ||
1658 | break; | ||
1659 | case HSO_PORT_DIAG: | ||
1660 | port_type = "Diagnostic"; | ||
1661 | break; | ||
1662 | case HSO_PORT_DIAG2: | ||
1663 | port_type = "Diagnostic2"; | ||
1664 | break; | ||
1665 | case HSO_PORT_MODEM: | ||
1666 | port_type = "Modem"; | ||
1667 | break; | ||
1668 | case HSO_PORT_NETWORK: | ||
1669 | port_type = "Network"; | ||
1670 | break; | ||
1671 | default: | ||
1672 | port_type = "Unknown"; | ||
1673 | break; | ||
1674 | } | ||
1675 | if ((hso_dev->port_spec & HSO_PORT_MASK) == HSO_PORT_NETWORK) { | ||
1676 | sprintf(port_dev, "%s", dev2net(hso_dev)->net->name); | ||
1677 | } else | ||
1678 | sprintf(port_dev, "/dev/%s%d", tty_filename, | ||
1679 | dev2ser(hso_dev)->minor); | ||
1680 | |||
1681 | dev_dbg(&hso_dev->interface->dev, "HSO: Found %s port %s\n", | ||
1682 | port_type, port_dev); | ||
1683 | } | ||
1684 | |||
1685 | static int hso_start_net_device(struct hso_device *hso_dev) | ||
1686 | { | ||
1687 | int i, result = 0; | ||
1688 | struct hso_net *hso_net = dev2net(hso_dev); | ||
1689 | |||
1690 | if (!hso_net) | ||
1691 | return -ENODEV; | ||
1692 | |||
1693 | /* send URBs for all read buffers */ | ||
1694 | for (i = 0; i < MUX_BULK_RX_BUF_COUNT; i++) { | ||
1695 | |||
1696 | /* Prep a receive URB */ | ||
1697 | usb_fill_bulk_urb(hso_net->mux_bulk_rx_urb_pool[i], | ||
1698 | hso_dev->usb, | ||
1699 | usb_rcvbulkpipe(hso_dev->usb, | ||
1700 | hso_net->in_endp-> | ||
1701 | bEndpointAddress & 0x7F), | ||
1702 | hso_net->mux_bulk_rx_buf_pool[i], | ||
1703 | MUX_BULK_RX_BUF_SIZE, read_bulk_callback, | ||
1704 | hso_net); | ||
1705 | |||
1706 | /* Put it out there so the device can send us stuff */ | ||
1707 | result = usb_submit_urb(hso_net->mux_bulk_rx_urb_pool[i], | ||
1708 | GFP_NOIO); | ||
1709 | if (result) | ||
1710 | dev_warn(&hso_dev->usb->dev, | ||
1711 | "%s failed mux_bulk_rx_urb[%d] %d\n", __func__, | ||
1712 | i, result); | ||
1713 | } | ||
1714 | |||
1715 | return result; | ||
1716 | } | ||
1717 | |||
1718 | static int hso_stop_net_device(struct hso_device *hso_dev) | ||
1719 | { | ||
1720 | int i; | ||
1721 | struct hso_net *hso_net = dev2net(hso_dev); | ||
1722 | |||
1723 | if (!hso_net) | ||
1724 | return -ENODEV; | ||
1725 | |||
1726 | for (i = 0; i < MUX_BULK_RX_BUF_COUNT; i++) { | ||
1727 | if (hso_net->mux_bulk_rx_urb_pool[i]) | ||
1728 | usb_kill_urb(hso_net->mux_bulk_rx_urb_pool[i]); | ||
1729 | |||
1730 | } | ||
1731 | if (hso_net->mux_bulk_tx_urb) | ||
1732 | usb_kill_urb(hso_net->mux_bulk_tx_urb); | ||
1733 | |||
1734 | return 0; | ||
1735 | } | ||
1736 | |||
1737 | static int hso_start_serial_device(struct hso_device *hso_dev, gfp_t flags) | ||
1738 | { | ||
1739 | int i, result = 0; | ||
1740 | struct hso_serial *serial = dev2ser(hso_dev); | ||
1741 | |||
1742 | if (!serial) | ||
1743 | return -ENODEV; | ||
1744 | |||
1745 | /* If it is not the MUX port fill in and submit a bulk urb (already | ||
1746 | * allocated in hso_serial_start) */ | ||
1747 | if (!(serial->parent->port_spec & HSO_INTF_MUX)) { | ||
1748 | for (i = 0; i < serial->num_rx_urbs; i++) { | ||
1749 | usb_fill_bulk_urb(serial->rx_urb[i], | ||
1750 | serial->parent->usb, | ||
1751 | usb_rcvbulkpipe(serial->parent->usb, | ||
1752 | serial->in_endp-> | ||
1753 | bEndpointAddress & | ||
1754 | 0x7F), | ||
1755 | serial->rx_data[i], | ||
1756 | serial->rx_data_length, | ||
1757 | hso_std_serial_read_bulk_callback, | ||
1758 | serial); | ||
1759 | result = usb_submit_urb(serial->rx_urb[i], flags); | ||
1760 | if (result) { | ||
1761 | dev_warn(&serial->parent->usb->dev, | ||
1762 | "Failed to submit urb - res %d\n", | ||
1763 | result); | ||
1764 | break; | ||
1765 | } | ||
1766 | } | ||
1767 | } else { | ||
1768 | mutex_lock(&serial->shared_int->shared_int_lock); | ||
1769 | if (!serial->shared_int->use_count) { | ||
1770 | result = | ||
1771 | hso_mux_submit_intr_urb(serial->shared_int, | ||
1772 | hso_dev->usb, flags); | ||
1773 | } | ||
1774 | serial->shared_int->use_count++; | ||
1775 | mutex_unlock(&serial->shared_int->shared_int_lock); | ||
1776 | } | ||
1777 | |||
1778 | return result; | ||
1779 | } | ||
1780 | |||
1781 | static int hso_stop_serial_device(struct hso_device *hso_dev) | ||
1782 | { | ||
1783 | int i; | ||
1784 | struct hso_serial *serial = dev2ser(hso_dev); | ||
1785 | |||
1786 | if (!serial) | ||
1787 | return -ENODEV; | ||
1788 | |||
1789 | for (i = 0; i < serial->num_rx_urbs; i++) { | ||
1790 | if (serial->rx_urb[i]) | ||
1791 | usb_kill_urb(serial->rx_urb[i]); | ||
1792 | } | ||
1793 | |||
1794 | if (serial->tx_urb) | ||
1795 | usb_kill_urb(serial->tx_urb); | ||
1796 | |||
1797 | if (serial->shared_int) { | ||
1798 | mutex_lock(&serial->shared_int->shared_int_lock); | ||
1799 | if (serial->shared_int->use_count && | ||
1800 | (--serial->shared_int->use_count == 0)) { | ||
1801 | struct urb *urb; | ||
1802 | |||
1803 | urb = serial->shared_int->shared_intr_urb; | ||
1804 | if (urb) | ||
1805 | usb_kill_urb(urb); | ||
1806 | } | ||
1807 | mutex_unlock(&serial->shared_int->shared_int_lock); | ||
1808 | } | ||
1809 | |||
1810 | return 0; | ||
1811 | } | ||
1812 | |||
1813 | static void hso_serial_common_free(struct hso_serial *serial) | ||
1814 | { | ||
1815 | int i; | ||
1816 | |||
1817 | if (serial->parent->dev) | ||
1818 | device_remove_file(serial->parent->dev, &dev_attr_hsotype); | ||
1819 | |||
1820 | tty_unregister_device(tty_drv, serial->minor); | ||
1821 | |||
1822 | for (i = 0; i < serial->num_rx_urbs; i++) { | ||
1823 | /* unlink and free RX URB */ | ||
1824 | usb_free_urb(serial->rx_urb[i]); | ||
1825 | /* free the RX buffer */ | ||
1826 | kfree(serial->rx_data[i]); | ||
1827 | } | ||
1828 | |||
1829 | /* unlink and free TX URB */ | ||
1830 | usb_free_urb(serial->tx_urb); | ||
1831 | kfree(serial->tx_data); | ||
1832 | } | ||
1833 | |||
1834 | static int hso_serial_common_create(struct hso_serial *serial, int num_urbs, | ||
1835 | int rx_size, int tx_size) | ||
1836 | { | ||
1837 | struct device *dev; | ||
1838 | int minor; | ||
1839 | int i; | ||
1840 | |||
1841 | minor = get_free_serial_index(); | ||
1842 | if (minor < 0) | ||
1843 | goto exit; | ||
1844 | |||
1845 | /* register our minor number */ | ||
1846 | serial->parent->dev = tty_register_device(tty_drv, minor, | ||
1847 | &serial->parent->interface->dev); | ||
1848 | dev = serial->parent->dev; | ||
1849 | dev->driver_data = serial->parent; | ||
1850 | i = device_create_file(dev, &dev_attr_hsotype); | ||
1851 | |||
1852 | /* fill in specific data for later use */ | ||
1853 | serial->minor = minor; | ||
1854 | serial->magic = HSO_SERIAL_MAGIC; | ||
1855 | spin_lock_init(&serial->serial_lock); | ||
1856 | serial->num_rx_urbs = num_urbs; | ||
1857 | |||
1858 | /* RX, allocate urb and initialize */ | ||
1859 | |||
1860 | /* prepare our RX buffer */ | ||
1861 | serial->rx_data_length = rx_size; | ||
1862 | for (i = 0; i < serial->num_rx_urbs; i++) { | ||
1863 | serial->rx_urb[i] = usb_alloc_urb(0, GFP_KERNEL); | ||
1864 | if (!serial->rx_urb[i]) { | ||
1865 | dev_err(dev, "Could not allocate urb?\n"); | ||
1866 | goto exit; | ||
1867 | } | ||
1868 | serial->rx_urb[i]->transfer_buffer = NULL; | ||
1869 | serial->rx_urb[i]->transfer_buffer_length = 0; | ||
1870 | serial->rx_data[i] = kzalloc(serial->rx_data_length, | ||
1871 | GFP_KERNEL); | ||
1872 | if (!serial->rx_data[i]) { | ||
1873 | dev_err(dev, "%s - Out of memory\n", __func__); | ||
1874 | goto exit; | ||
1875 | } | ||
1876 | } | ||
1877 | |||
1878 | /* TX, allocate urb and initialize */ | ||
1879 | serial->tx_urb = usb_alloc_urb(0, GFP_KERNEL); | ||
1880 | if (!serial->tx_urb) { | ||
1881 | dev_err(dev, "Could not allocate urb?\n"); | ||
1882 | goto exit; | ||
1883 | } | ||
1884 | serial->tx_urb->transfer_buffer = NULL; | ||
1885 | serial->tx_urb->transfer_buffer_length = 0; | ||
1886 | /* prepare our TX buffer */ | ||
1887 | serial->tx_data_count = 0; | ||
1888 | serial->tx_buffer_count = 0; | ||
1889 | serial->tx_data_length = tx_size; | ||
1890 | serial->tx_data = kzalloc(serial->tx_data_length, GFP_KERNEL); | ||
1891 | if (!serial->tx_data) { | ||
1892 | dev_err(dev, "%s - Out of memory", __func__); | ||
1893 | goto exit; | ||
1894 | } | ||
1895 | serial->tx_buffer = kzalloc(serial->tx_data_length, GFP_KERNEL); | ||
1896 | if (!serial->tx_buffer) { | ||
1897 | dev_err(dev, "%s - Out of memory", __func__); | ||
1898 | goto exit; | ||
1899 | } | ||
1900 | |||
1901 | return 0; | ||
1902 | exit: | ||
1903 | hso_serial_common_free(serial); | ||
1904 | return -1; | ||
1905 | } | ||
1906 | |||
1907 | /* Frees a general hso device */ | ||
1908 | static void hso_free_device(struct hso_device *hso_dev) | ||
1909 | { | ||
1910 | kfree(hso_dev); | ||
1911 | } | ||
1912 | |||
1913 | /* Creates a general hso device */ | ||
1914 | static struct hso_device *hso_create_device(struct usb_interface *intf, | ||
1915 | int port_spec) | ||
1916 | { | ||
1917 | struct hso_device *hso_dev; | ||
1918 | |||
1919 | hso_dev = kzalloc(sizeof(*hso_dev), GFP_ATOMIC); | ||
1920 | if (!hso_dev) | ||
1921 | return NULL; | ||
1922 | |||
1923 | hso_dev->port_spec = port_spec; | ||
1924 | hso_dev->usb = interface_to_usbdev(intf); | ||
1925 | hso_dev->interface = intf; | ||
1926 | kref_init(&hso_dev->ref); | ||
1927 | mutex_init(&hso_dev->mutex); | ||
1928 | |||
1929 | INIT_WORK(&hso_dev->async_get_intf, async_get_intf); | ||
1930 | INIT_WORK(&hso_dev->async_put_intf, async_put_intf); | ||
1931 | |||
1932 | return hso_dev; | ||
1933 | } | ||
1934 | |||
1935 | /* Removes a network device in the network device table */ | ||
1936 | static int remove_net_device(struct hso_device *hso_dev) | ||
1937 | { | ||
1938 | int i; | ||
1939 | |||
1940 | for (i = 0; i < HSO_MAX_NET_DEVICES; i++) { | ||
1941 | if (network_table[i] == hso_dev) { | ||
1942 | network_table[i] = NULL; | ||
1943 | break; | ||
1944 | } | ||
1945 | } | ||
1946 | if (i == HSO_MAX_NET_DEVICES) | ||
1947 | return -1; | ||
1948 | return 0; | ||
1949 | } | ||
1950 | |||
1951 | /* Frees our network device */ | ||
1952 | static void hso_free_net_device(struct hso_device *hso_dev) | ||
1953 | { | ||
1954 | int i; | ||
1955 | struct hso_net *hso_net = dev2net(hso_dev); | ||
1956 | |||
1957 | if (!hso_net) | ||
1958 | return; | ||
1959 | |||
1960 | /* start freeing */ | ||
1961 | for (i = 0; i < MUX_BULK_RX_BUF_COUNT; i++) { | ||
1962 | usb_free_urb(hso_net->mux_bulk_rx_urb_pool[i]); | ||
1963 | kfree(hso_net->mux_bulk_rx_buf_pool[i]); | ||
1964 | } | ||
1965 | usb_free_urb(hso_net->mux_bulk_tx_urb); | ||
1966 | kfree(hso_net->mux_bulk_tx_buf); | ||
1967 | |||
1968 | remove_net_device(hso_net->parent); | ||
1969 | |||
1970 | if (hso_net->net) { | ||
1971 | unregister_netdev(hso_net->net); | ||
1972 | free_netdev(hso_net->net); | ||
1973 | } | ||
1974 | |||
1975 | hso_free_device(hso_dev); | ||
1976 | } | ||
1977 | |||
1978 | /* initialize the network interface */ | ||
1979 | static void hso_net_init(struct net_device *net) | ||
1980 | { | ||
1981 | struct hso_net *hso_net = netdev_priv(net); | ||
1982 | |||
1983 | D1("sizeof hso_net is %d", (int)sizeof(*hso_net)); | ||
1984 | |||
1985 | /* fill in the other fields */ | ||
1986 | net->open = hso_net_open; | ||
1987 | net->stop = hso_net_close; | ||
1988 | net->hard_start_xmit = hso_net_start_xmit; | ||
1989 | net->tx_timeout = hso_net_tx_timeout; | ||
1990 | net->watchdog_timeo = HSO_NET_TX_TIMEOUT; | ||
1991 | net->flags = IFF_POINTOPOINT | IFF_NOARP | IFF_MULTICAST; | ||
1992 | net->type = ARPHRD_NONE; | ||
1993 | net->mtu = DEFAULT_MTU - 14; | ||
1994 | net->tx_queue_len = 10; | ||
1995 | SET_ETHTOOL_OPS(net, &ops); | ||
1996 | |||
1997 | /* and initialize the semaphore */ | ||
1998 | spin_lock_init(&hso_net->net_lock); | ||
1999 | } | ||
2000 | |||
2001 | /* Adds a network device in the network device table */ | ||
2002 | static int add_net_device(struct hso_device *hso_dev) | ||
2003 | { | ||
2004 | int i; | ||
2005 | |||
2006 | for (i = 0; i < HSO_MAX_NET_DEVICES; i++) { | ||
2007 | if (network_table[i] == NULL) { | ||
2008 | network_table[i] = hso_dev; | ||
2009 | break; | ||
2010 | } | ||
2011 | } | ||
2012 | if (i == HSO_MAX_NET_DEVICES) | ||
2013 | return -1; | ||
2014 | return 0; | ||
2015 | } | ||
2016 | |||
2017 | static int hso_radio_toggle(void *data, enum rfkill_state state) | ||
2018 | { | ||
2019 | struct hso_device *hso_dev = data; | ||
2020 | int enabled = (state == RFKILL_STATE_ON); | ||
2021 | int rv; | ||
2022 | |||
2023 | mutex_lock(&hso_dev->mutex); | ||
2024 | if (hso_dev->usb_gone) | ||
2025 | rv = 0; | ||
2026 | else | ||
2027 | rv = usb_control_msg(hso_dev->usb, usb_rcvctrlpipe(hso_dev->usb, 0), | ||
2028 | enabled ? 0x82 : 0x81, 0x40, 0, 0, NULL, 0, | ||
2029 | USB_CTRL_SET_TIMEOUT); | ||
2030 | mutex_unlock(&hso_dev->mutex); | ||
2031 | return rv; | ||
2032 | } | ||
2033 | |||
2034 | /* Creates and sets up everything for rfkill */ | ||
2035 | static void hso_create_rfkill(struct hso_device *hso_dev, | ||
2036 | struct usb_interface *interface) | ||
2037 | { | ||
2038 | struct hso_net *hso_net = dev2net(hso_dev); | ||
2039 | struct device *dev = hso_dev->dev; | ||
2040 | char *rfkn; | ||
2041 | |||
2042 | hso_net->rfkill = rfkill_allocate(&interface_to_usbdev(interface)->dev, | ||
2043 | RFKILL_TYPE_WLAN); | ||
2044 | if (!hso_net->rfkill) { | ||
2045 | dev_err(dev, "%s - Out of memory", __func__); | ||
2046 | return; | ||
2047 | } | ||
2048 | rfkn = kzalloc(20, GFP_KERNEL); | ||
2049 | if (!rfkn) { | ||
2050 | rfkill_free(hso_net->rfkill); | ||
2051 | dev_err(dev, "%s - Out of memory", __func__); | ||
2052 | return; | ||
2053 | } | ||
2054 | snprintf(rfkn, 20, "hso-%d", | ||
2055 | interface->altsetting->desc.bInterfaceNumber); | ||
2056 | hso_net->rfkill->name = rfkn; | ||
2057 | hso_net->rfkill->state = RFKILL_STATE_ON; | ||
2058 | hso_net->rfkill->data = hso_dev; | ||
2059 | hso_net->rfkill->toggle_radio = hso_radio_toggle; | ||
2060 | if (rfkill_register(hso_net->rfkill) < 0) { | ||
2061 | kfree(rfkn); | ||
2062 | hso_net->rfkill->name = NULL; | ||
2063 | rfkill_free(hso_net->rfkill); | ||
2064 | dev_err(dev, "%s - Failed to register rfkill", __func__); | ||
2065 | return; | ||
2066 | } | ||
2067 | } | ||
2068 | |||
2069 | /* Creates our network device */ | ||
2070 | static struct hso_device *hso_create_net_device(struct usb_interface *interface) | ||
2071 | { | ||
2072 | int result, i; | ||
2073 | struct net_device *net; | ||
2074 | struct hso_net *hso_net; | ||
2075 | struct hso_device *hso_dev; | ||
2076 | |||
2077 | hso_dev = hso_create_device(interface, HSO_INTF_MUX | HSO_PORT_NETWORK); | ||
2078 | if (!hso_dev) | ||
2079 | return NULL; | ||
2080 | |||
2081 | /* allocate our network device, then we can put in our private data */ | ||
2082 | /* call hso_net_init to do the basic initialization */ | ||
2083 | net = alloc_netdev(sizeof(struct hso_net), "hso%d", hso_net_init); | ||
2084 | if (!net) { | ||
2085 | dev_err(&interface->dev, "Unable to create ethernet device\n"); | ||
2086 | goto exit; | ||
2087 | } | ||
2088 | |||
2089 | hso_net = netdev_priv(net); | ||
2090 | |||
2091 | hso_dev->port_data.dev_net = hso_net; | ||
2092 | hso_net->net = net; | ||
2093 | hso_net->parent = hso_dev; | ||
2094 | |||
2095 | hso_net->in_endp = hso_get_ep(interface, USB_ENDPOINT_XFER_BULK, | ||
2096 | USB_DIR_IN); | ||
2097 | if (!hso_net->in_endp) { | ||
2098 | dev_err(&interface->dev, "Can't find BULK IN endpoint\n"); | ||
2099 | goto exit; | ||
2100 | } | ||
2101 | hso_net->out_endp = hso_get_ep(interface, USB_ENDPOINT_XFER_BULK, | ||
2102 | USB_DIR_OUT); | ||
2103 | if (!hso_net->out_endp) { | ||
2104 | dev_err(&interface->dev, "Can't find BULK OUT endpoint\n"); | ||
2105 | goto exit; | ||
2106 | } | ||
2107 | SET_NETDEV_DEV(net, &interface->dev); | ||
2108 | |||
2109 | /* registering our net device */ | ||
2110 | result = register_netdev(net); | ||
2111 | if (result) { | ||
2112 | dev_err(&interface->dev, "Failed to register device\n"); | ||
2113 | goto exit; | ||
2114 | } | ||
2115 | |||
2116 | /* start allocating */ | ||
2117 | for (i = 0; i < MUX_BULK_RX_BUF_COUNT; i++) { | ||
2118 | hso_net->mux_bulk_rx_urb_pool[i] = usb_alloc_urb(0, GFP_KERNEL); | ||
2119 | if (!hso_net->mux_bulk_rx_urb_pool[i]) { | ||
2120 | dev_err(&interface->dev, "Could not allocate rx urb\n"); | ||
2121 | goto exit; | ||
2122 | } | ||
2123 | hso_net->mux_bulk_rx_buf_pool[i] = kzalloc(MUX_BULK_RX_BUF_SIZE, | ||
2124 | GFP_KERNEL); | ||
2125 | if (!hso_net->mux_bulk_rx_buf_pool[i]) { | ||
2126 | dev_err(&interface->dev, "Could not allocate rx buf\n"); | ||
2127 | goto exit; | ||
2128 | } | ||
2129 | } | ||
2130 | hso_net->mux_bulk_tx_urb = usb_alloc_urb(0, GFP_KERNEL); | ||
2131 | if (!hso_net->mux_bulk_tx_urb) { | ||
2132 | dev_err(&interface->dev, "Could not allocate tx urb\n"); | ||
2133 | goto exit; | ||
2134 | } | ||
2135 | hso_net->mux_bulk_tx_buf = kzalloc(MUX_BULK_TX_BUF_SIZE, GFP_KERNEL); | ||
2136 | if (!hso_net->mux_bulk_tx_buf) { | ||
2137 | dev_err(&interface->dev, "Could not allocate tx buf\n"); | ||
2138 | goto exit; | ||
2139 | } | ||
2140 | |||
2141 | add_net_device(hso_dev); | ||
2142 | |||
2143 | hso_log_port(hso_dev); | ||
2144 | |||
2145 | hso_create_rfkill(hso_dev, interface); | ||
2146 | |||
2147 | return hso_dev; | ||
2148 | exit: | ||
2149 | hso_free_net_device(hso_dev); | ||
2150 | return NULL; | ||
2151 | } | ||
2152 | |||
2153 | /* Frees an AT channel ( goes for both mux and non-mux ) */ | ||
2154 | static void hso_free_serial_device(struct hso_device *hso_dev) | ||
2155 | { | ||
2156 | struct hso_serial *serial = dev2ser(hso_dev); | ||
2157 | |||
2158 | if (!serial) | ||
2159 | return; | ||
2160 | set_serial_by_index(serial->minor, NULL); | ||
2161 | |||
2162 | hso_serial_common_free(serial); | ||
2163 | |||
2164 | if (serial->shared_int) { | ||
2165 | mutex_lock(&serial->shared_int->shared_int_lock); | ||
2166 | if (--serial->shared_int->ref_count == 0) | ||
2167 | hso_free_shared_int(serial->shared_int); | ||
2168 | else | ||
2169 | mutex_unlock(&serial->shared_int->shared_int_lock); | ||
2170 | } | ||
2171 | kfree(serial); | ||
2172 | hso_free_device(hso_dev); | ||
2173 | } | ||
2174 | |||
2175 | /* Creates a bulk AT channel */ | ||
2176 | static struct hso_device *hso_create_bulk_serial_device( | ||
2177 | struct usb_interface *interface, int port) | ||
2178 | { | ||
2179 | struct hso_device *hso_dev; | ||
2180 | struct hso_serial *serial; | ||
2181 | int num_urbs; | ||
2182 | |||
2183 | hso_dev = hso_create_device(interface, port); | ||
2184 | if (!hso_dev) | ||
2185 | return NULL; | ||
2186 | |||
2187 | serial = kzalloc(sizeof(*serial), GFP_KERNEL); | ||
2188 | if (!serial) | ||
2189 | goto exit; | ||
2190 | |||
2191 | serial->parent = hso_dev; | ||
2192 | hso_dev->port_data.dev_serial = serial; | ||
2193 | |||
2194 | if (port & HSO_PORT_MODEM) | ||
2195 | num_urbs = 2; | ||
2196 | else | ||
2197 | num_urbs = 1; | ||
2198 | |||
2199 | if (hso_serial_common_create(serial, num_urbs, BULK_URB_RX_SIZE, | ||
2200 | BULK_URB_TX_SIZE)) | ||
2201 | goto exit; | ||
2202 | |||
2203 | serial->in_endp = hso_get_ep(interface, USB_ENDPOINT_XFER_BULK, | ||
2204 | USB_DIR_IN); | ||
2205 | if (!serial->in_endp) { | ||
2206 | dev_err(&interface->dev, "Failed to find BULK IN ep\n"); | ||
2207 | goto exit; | ||
2208 | } | ||
2209 | |||
2210 | if (! | ||
2211 | (serial->out_endp = | ||
2212 | hso_get_ep(interface, USB_ENDPOINT_XFER_BULK, USB_DIR_OUT))) { | ||
2213 | dev_err(&interface->dev, "Failed to find BULK IN ep\n"); | ||
2214 | goto exit; | ||
2215 | } | ||
2216 | |||
2217 | serial->write_data = hso_std_serial_write_data; | ||
2218 | |||
2219 | /* and record this serial */ | ||
2220 | set_serial_by_index(serial->minor, serial); | ||
2221 | |||
2222 | /* setup the proc dirs and files if needed */ | ||
2223 | hso_log_port(hso_dev); | ||
2224 | |||
2225 | /* done, return it */ | ||
2226 | return hso_dev; | ||
2227 | exit: | ||
2228 | if (hso_dev && serial) | ||
2229 | hso_serial_common_free(serial); | ||
2230 | kfree(serial); | ||
2231 | hso_free_device(hso_dev); | ||
2232 | return NULL; | ||
2233 | } | ||
2234 | |||
2235 | /* Creates a multiplexed AT channel */ | ||
2236 | static | ||
2237 | struct hso_device *hso_create_mux_serial_device(struct usb_interface *interface, | ||
2238 | int port, | ||
2239 | struct hso_shared_int *mux) | ||
2240 | { | ||
2241 | struct hso_device *hso_dev; | ||
2242 | struct hso_serial *serial; | ||
2243 | int port_spec; | ||
2244 | |||
2245 | port_spec = HSO_INTF_MUX; | ||
2246 | port_spec &= ~HSO_PORT_MASK; | ||
2247 | |||
2248 | port_spec |= hso_mux_to_port(port); | ||
2249 | if ((port_spec & HSO_PORT_MASK) == HSO_PORT_NO_PORT) | ||
2250 | return NULL; | ||
2251 | |||
2252 | hso_dev = hso_create_device(interface, port_spec); | ||
2253 | if (!hso_dev) | ||
2254 | return NULL; | ||
2255 | |||
2256 | serial = kzalloc(sizeof(*serial), GFP_KERNEL); | ||
2257 | if (!serial) | ||
2258 | goto exit; | ||
2259 | |||
2260 | hso_dev->port_data.dev_serial = serial; | ||
2261 | serial->parent = hso_dev; | ||
2262 | |||
2263 | if (hso_serial_common_create | ||
2264 | (serial, 1, CTRL_URB_RX_SIZE, CTRL_URB_TX_SIZE)) | ||
2265 | goto exit; | ||
2266 | |||
2267 | serial->tx_data_length--; | ||
2268 | serial->write_data = hso_mux_serial_write_data; | ||
2269 | |||
2270 | serial->shared_int = mux; | ||
2271 | mutex_lock(&serial->shared_int->shared_int_lock); | ||
2272 | serial->shared_int->ref_count++; | ||
2273 | mutex_unlock(&serial->shared_int->shared_int_lock); | ||
2274 | |||
2275 | /* and record this serial */ | ||
2276 | set_serial_by_index(serial->minor, serial); | ||
2277 | |||
2278 | /* setup the proc dirs and files if needed */ | ||
2279 | hso_log_port(hso_dev); | ||
2280 | |||
2281 | /* done, return it */ | ||
2282 | return hso_dev; | ||
2283 | |||
2284 | exit: | ||
2285 | if (serial) { | ||
2286 | tty_unregister_device(tty_drv, serial->minor); | ||
2287 | kfree(serial); | ||
2288 | } | ||
2289 | if (hso_dev) | ||
2290 | hso_free_device(hso_dev); | ||
2291 | return NULL; | ||
2292 | |||
2293 | } | ||
2294 | |||
2295 | static void hso_free_shared_int(struct hso_shared_int *mux) | ||
2296 | { | ||
2297 | usb_free_urb(mux->shared_intr_urb); | ||
2298 | kfree(mux->shared_intr_buf); | ||
2299 | mutex_unlock(&mux->shared_int_lock); | ||
2300 | kfree(mux); | ||
2301 | } | ||
2302 | |||
2303 | static | ||
2304 | struct hso_shared_int *hso_create_shared_int(struct usb_interface *interface) | ||
2305 | { | ||
2306 | struct hso_shared_int *mux = kzalloc(sizeof(*mux), GFP_KERNEL); | ||
2307 | |||
2308 | if (!mux) | ||
2309 | return NULL; | ||
2310 | |||
2311 | mux->intr_endp = hso_get_ep(interface, USB_ENDPOINT_XFER_INT, | ||
2312 | USB_DIR_IN); | ||
2313 | if (!mux->intr_endp) { | ||
2314 | dev_err(&interface->dev, "Can't find INT IN endpoint\n"); | ||
2315 | goto exit; | ||
2316 | } | ||
2317 | |||
2318 | mux->shared_intr_urb = usb_alloc_urb(0, GFP_KERNEL); | ||
2319 | if (!mux->shared_intr_urb) { | ||
2320 | dev_err(&interface->dev, "Could not allocate intr urb?"); | ||
2321 | goto exit; | ||
2322 | } | ||
2323 | mux->shared_intr_buf = kzalloc(mux->intr_endp->wMaxPacketSize, | ||
2324 | GFP_KERNEL); | ||
2325 | if (!mux->shared_intr_buf) { | ||
2326 | dev_err(&interface->dev, "Could not allocate intr buf?"); | ||
2327 | goto exit; | ||
2328 | } | ||
2329 | |||
2330 | mutex_init(&mux->shared_int_lock); | ||
2331 | |||
2332 | return mux; | ||
2333 | |||
2334 | exit: | ||
2335 | kfree(mux->shared_intr_buf); | ||
2336 | usb_free_urb(mux->shared_intr_urb); | ||
2337 | kfree(mux); | ||
2338 | return NULL; | ||
2339 | } | ||
2340 | |||
2341 | /* Gets the port spec for a certain interface */ | ||
2342 | static int hso_get_config_data(struct usb_interface *interface) | ||
2343 | { | ||
2344 | struct usb_device *usbdev = interface_to_usbdev(interface); | ||
2345 | u8 config_data[17]; | ||
2346 | u32 if_num = interface->altsetting->desc.bInterfaceNumber; | ||
2347 | s32 result; | ||
2348 | |||
2349 | if (usb_control_msg(usbdev, usb_rcvctrlpipe(usbdev, 0), | ||
2350 | 0x86, 0xC0, 0, 0, config_data, 17, | ||
2351 | USB_CTRL_SET_TIMEOUT) != 0x11) { | ||
2352 | return -EIO; | ||
2353 | } | ||
2354 | |||
2355 | switch (config_data[if_num]) { | ||
2356 | case 0x0: | ||
2357 | result = 0; | ||
2358 | break; | ||
2359 | case 0x1: | ||
2360 | result = HSO_PORT_DIAG; | ||
2361 | break; | ||
2362 | case 0x2: | ||
2363 | result = HSO_PORT_GPS; | ||
2364 | break; | ||
2365 | case 0x3: | ||
2366 | result = HSO_PORT_GPS_CONTROL; | ||
2367 | break; | ||
2368 | case 0x4: | ||
2369 | result = HSO_PORT_APP; | ||
2370 | break; | ||
2371 | case 0x5: | ||
2372 | result = HSO_PORT_APP2; | ||
2373 | break; | ||
2374 | case 0x6: | ||
2375 | result = HSO_PORT_CONTROL; | ||
2376 | break; | ||
2377 | case 0x7: | ||
2378 | result = HSO_PORT_NETWORK; | ||
2379 | break; | ||
2380 | case 0x8: | ||
2381 | result = HSO_PORT_MODEM; | ||
2382 | break; | ||
2383 | case 0x9: | ||
2384 | result = HSO_PORT_MSD; | ||
2385 | break; | ||
2386 | case 0xa: | ||
2387 | result = HSO_PORT_PCSC; | ||
2388 | break; | ||
2389 | case 0xb: | ||
2390 | result = HSO_PORT_VOICE; | ||
2391 | break; | ||
2392 | default: | ||
2393 | result = 0; | ||
2394 | } | ||
2395 | |||
2396 | if (result) | ||
2397 | result |= HSO_INTF_BULK; | ||
2398 | |||
2399 | if (config_data[16] & 0x1) | ||
2400 | result |= HSO_INFO_CRC_BUG; | ||
2401 | |||
2402 | return result; | ||
2403 | } | ||
2404 | |||
2405 | /* called once for each interface upon device insertion */ | ||
2406 | static int hso_probe(struct usb_interface *interface, | ||
2407 | const struct usb_device_id *id) | ||
2408 | { | ||
2409 | int mux, i, if_num, port_spec; | ||
2410 | unsigned char port_mask; | ||
2411 | struct hso_device *hso_dev = NULL; | ||
2412 | struct hso_shared_int *shared_int; | ||
2413 | struct hso_device *tmp_dev = NULL; | ||
2414 | |||
2415 | if_num = interface->altsetting->desc.bInterfaceNumber; | ||
2416 | |||
2417 | /* Get the interface/port specification from either driver_info or from | ||
2418 | * the device itself */ | ||
2419 | if (id->driver_info) | ||
2420 | port_spec = ((u32 *)(id->driver_info))[if_num]; | ||
2421 | else | ||
2422 | port_spec = hso_get_config_data(interface); | ||
2423 | |||
2424 | if (interface->cur_altsetting->desc.bInterfaceClass != 0xFF) { | ||
2425 | dev_err(&interface->dev, "Not our interface\n"); | ||
2426 | return -ENODEV; | ||
2427 | } | ||
2428 | /* Check if we need to switch to alt interfaces prior to port | ||
2429 | * configuration */ | ||
2430 | if (interface->num_altsetting > 1) | ||
2431 | usb_set_interface(interface_to_usbdev(interface), if_num, 1); | ||
2432 | interface->needs_remote_wakeup = 1; | ||
2433 | |||
2434 | /* Allocate new hso device(s) */ | ||
2435 | switch (port_spec & HSO_INTF_MASK) { | ||
2436 | case HSO_INTF_MUX: | ||
2437 | if ((port_spec & HSO_PORT_MASK) == HSO_PORT_NETWORK) { | ||
2438 | /* Create the network device */ | ||
2439 | if (!disable_net) { | ||
2440 | hso_dev = hso_create_net_device(interface); | ||
2441 | if (!hso_dev) | ||
2442 | goto exit; | ||
2443 | tmp_dev = hso_dev; | ||
2444 | } | ||
2445 | } | ||
2446 | |||
2447 | if (hso_get_mux_ports(interface, &port_mask)) | ||
2448 | /* TODO: de-allocate everything */ | ||
2449 | goto exit; | ||
2450 | |||
2451 | shared_int = hso_create_shared_int(interface); | ||
2452 | if (!shared_int) | ||
2453 | goto exit; | ||
2454 | |||
2455 | for (i = 1, mux = 0; i < 0x100; i = i << 1, mux++) { | ||
2456 | if (port_mask & i) { | ||
2457 | hso_dev = hso_create_mux_serial_device( | ||
2458 | interface, i, shared_int); | ||
2459 | if (!hso_dev) | ||
2460 | goto exit; | ||
2461 | } | ||
2462 | } | ||
2463 | |||
2464 | if (tmp_dev) | ||
2465 | hso_dev = tmp_dev; | ||
2466 | break; | ||
2467 | |||
2468 | case HSO_INTF_BULK: | ||
2469 | /* It's a regular bulk interface */ | ||
2470 | if (((port_spec & HSO_PORT_MASK) == HSO_PORT_NETWORK) | ||
2471 | && !disable_net) | ||
2472 | hso_dev = hso_create_net_device(interface); | ||
2473 | else | ||
2474 | hso_dev = | ||
2475 | hso_create_bulk_serial_device(interface, port_spec); | ||
2476 | if (!hso_dev) | ||
2477 | goto exit; | ||
2478 | break; | ||
2479 | default: | ||
2480 | goto exit; | ||
2481 | } | ||
2482 | |||
2483 | usb_driver_claim_interface(&hso_driver, interface, hso_dev); | ||
2484 | |||
2485 | /* save our data pointer in this device */ | ||
2486 | usb_set_intfdata(interface, hso_dev); | ||
2487 | |||
2488 | /* done */ | ||
2489 | return 0; | ||
2490 | exit: | ||
2491 | hso_free_interface(interface); | ||
2492 | return -ENODEV; | ||
2493 | } | ||
2494 | |||
2495 | /* device removed, cleaning up */ | ||
2496 | static void hso_disconnect(struct usb_interface *interface) | ||
2497 | { | ||
2498 | hso_free_interface(interface); | ||
2499 | |||
2500 | /* remove reference of our private data */ | ||
2501 | usb_set_intfdata(interface, NULL); | ||
2502 | |||
2503 | usb_driver_release_interface(&hso_driver, interface); | ||
2504 | } | ||
2505 | |||
2506 | static void async_get_intf(struct work_struct *data) | ||
2507 | { | ||
2508 | struct hso_device *hso_dev = | ||
2509 | container_of(data, struct hso_device, async_get_intf); | ||
2510 | usb_autopm_get_interface(hso_dev->interface); | ||
2511 | } | ||
2512 | |||
2513 | static void async_put_intf(struct work_struct *data) | ||
2514 | { | ||
2515 | struct hso_device *hso_dev = | ||
2516 | container_of(data, struct hso_device, async_put_intf); | ||
2517 | usb_autopm_put_interface(hso_dev->interface); | ||
2518 | } | ||
2519 | |||
2520 | static int hso_get_activity(struct hso_device *hso_dev) | ||
2521 | { | ||
2522 | if (hso_dev->usb->state == USB_STATE_SUSPENDED) { | ||
2523 | if (!hso_dev->is_active) { | ||
2524 | hso_dev->is_active = 1; | ||
2525 | schedule_work(&hso_dev->async_get_intf); | ||
2526 | } | ||
2527 | } | ||
2528 | |||
2529 | if (hso_dev->usb->state != USB_STATE_CONFIGURED) | ||
2530 | return -EAGAIN; | ||
2531 | |||
2532 | usb_mark_last_busy(hso_dev->usb); | ||
2533 | |||
2534 | return 0; | ||
2535 | } | ||
2536 | |||
2537 | static int hso_put_activity(struct hso_device *hso_dev) | ||
2538 | { | ||
2539 | if (hso_dev->usb->state != USB_STATE_SUSPENDED) { | ||
2540 | if (hso_dev->is_active) { | ||
2541 | hso_dev->is_active = 0; | ||
2542 | schedule_work(&hso_dev->async_put_intf); | ||
2543 | return -EAGAIN; | ||
2544 | } | ||
2545 | } | ||
2546 | hso_dev->is_active = 0; | ||
2547 | return 0; | ||
2548 | } | ||
2549 | |||
2550 | /* called by kernel when we need to suspend device */ | ||
2551 | static int hso_suspend(struct usb_interface *iface, pm_message_t message) | ||
2552 | { | ||
2553 | int i, result; | ||
2554 | |||
2555 | /* Stop all serial ports */ | ||
2556 | for (i = 0; i < HSO_SERIAL_TTY_MINORS; i++) { | ||
2557 | if (serial_table[i] && (serial_table[i]->interface == iface)) { | ||
2558 | result = hso_stop_serial_device(serial_table[i]); | ||
2559 | if (result) | ||
2560 | goto out; | ||
2561 | } | ||
2562 | } | ||
2563 | |||
2564 | /* Stop all network ports */ | ||
2565 | for (i = 0; i < HSO_MAX_NET_DEVICES; i++) { | ||
2566 | if (network_table[i] && | ||
2567 | (network_table[i]->interface == iface)) { | ||
2568 | result = hso_stop_net_device(network_table[i]); | ||
2569 | if (result) | ||
2570 | goto out; | ||
2571 | } | ||
2572 | } | ||
2573 | |||
2574 | out: | ||
2575 | return 0; | ||
2576 | } | ||
2577 | |||
2578 | /* called by kernel when we need to resume device */ | ||
2579 | static int hso_resume(struct usb_interface *iface) | ||
2580 | { | ||
2581 | int i, result = 0; | ||
2582 | struct hso_net *hso_net; | ||
2583 | |||
2584 | /* Start all serial ports */ | ||
2585 | for (i = 0; i < HSO_SERIAL_TTY_MINORS; i++) { | ||
2586 | if (serial_table[i] && (serial_table[i]->interface == iface)) { | ||
2587 | if (dev2ser(serial_table[i])->open_count) { | ||
2588 | result = | ||
2589 | hso_start_serial_device(serial_table[i], GFP_NOIO); | ||
2590 | hso_kick_transmit(dev2ser(serial_table[i])); | ||
2591 | if (result) | ||
2592 | goto out; | ||
2593 | } | ||
2594 | } | ||
2595 | } | ||
2596 | |||
2597 | /* Start all network ports */ | ||
2598 | for (i = 0; i < HSO_MAX_NET_DEVICES; i++) { | ||
2599 | if (network_table[i] && | ||
2600 | (network_table[i]->interface == iface)) { | ||
2601 | hso_net = dev2net(network_table[i]); | ||
2602 | /* First transmit any lingering data, then restart the | ||
2603 | * device. */ | ||
2604 | if (hso_net->skb_tx_buf) { | ||
2605 | dev_dbg(&iface->dev, | ||
2606 | "Transmitting lingering data\n"); | ||
2607 | hso_net_start_xmit(hso_net->skb_tx_buf, | ||
2608 | hso_net->net); | ||
2609 | } | ||
2610 | result = hso_start_net_device(network_table[i]); | ||
2611 | if (result) | ||
2612 | goto out; | ||
2613 | } | ||
2614 | } | ||
2615 | |||
2616 | out: | ||
2617 | return result; | ||
2618 | } | ||
2619 | |||
2620 | static void hso_serial_ref_free(struct kref *ref) | ||
2621 | { | ||
2622 | struct hso_device *hso_dev = container_of(ref, struct hso_device, ref); | ||
2623 | |||
2624 | hso_free_serial_device(hso_dev); | ||
2625 | } | ||
2626 | |||
2627 | static void hso_free_interface(struct usb_interface *interface) | ||
2628 | { | ||
2629 | struct hso_serial *hso_dev; | ||
2630 | int i; | ||
2631 | |||
2632 | for (i = 0; i < HSO_SERIAL_TTY_MINORS; i++) { | ||
2633 | if (serial_table[i] | ||
2634 | && (serial_table[i]->interface == interface)) { | ||
2635 | hso_dev = dev2ser(serial_table[i]); | ||
2636 | if (hso_dev->tty) | ||
2637 | tty_hangup(hso_dev->tty); | ||
2638 | mutex_lock(&hso_dev->parent->mutex); | ||
2639 | hso_dev->parent->usb_gone = 1; | ||
2640 | mutex_unlock(&hso_dev->parent->mutex); | ||
2641 | kref_put(&serial_table[i]->ref, hso_serial_ref_free); | ||
2642 | } | ||
2643 | } | ||
2644 | |||
2645 | for (i = 0; i < HSO_MAX_NET_DEVICES; i++) { | ||
2646 | if (network_table[i] | ||
2647 | && (network_table[i]->interface == interface)) { | ||
2648 | struct rfkill *rfk = dev2net(network_table[i])->rfkill; | ||
2649 | /* hso_stop_net_device doesn't stop the net queue since | ||
2650 | * traffic needs to start it again when suspended */ | ||
2651 | netif_stop_queue(dev2net(network_table[i])->net); | ||
2652 | hso_stop_net_device(network_table[i]); | ||
2653 | cancel_work_sync(&network_table[i]->async_put_intf); | ||
2654 | cancel_work_sync(&network_table[i]->async_get_intf); | ||
2655 | if(rfk) | ||
2656 | rfkill_unregister(rfk); | ||
2657 | hso_free_net_device(network_table[i]); | ||
2658 | } | ||
2659 | } | ||
2660 | } | ||
2661 | |||
2662 | /* Helper functions */ | ||
2663 | |||
2664 | /* Get the endpoint ! */ | ||
2665 | static struct usb_endpoint_descriptor *hso_get_ep(struct usb_interface *intf, | ||
2666 | int type, int dir) | ||
2667 | { | ||
2668 | int i; | ||
2669 | struct usb_host_interface *iface = intf->cur_altsetting; | ||
2670 | struct usb_endpoint_descriptor *endp; | ||
2671 | |||
2672 | for (i = 0; i < iface->desc.bNumEndpoints; i++) { | ||
2673 | endp = &iface->endpoint[i].desc; | ||
2674 | if (((endp->bEndpointAddress & USB_ENDPOINT_DIR_MASK) == dir) && | ||
2675 | ((endp->bmAttributes & USB_ENDPOINT_XFERTYPE_MASK) == type)) | ||
2676 | return endp; | ||
2677 | } | ||
2678 | |||
2679 | return NULL; | ||
2680 | } | ||
2681 | |||
2682 | /* Get the byte that describes which ports are enabled */ | ||
2683 | static int hso_get_mux_ports(struct usb_interface *intf, unsigned char *ports) | ||
2684 | { | ||
2685 | int i; | ||
2686 | struct usb_host_interface *iface = intf->cur_altsetting; | ||
2687 | |||
2688 | if (iface->extralen == 3) { | ||
2689 | *ports = iface->extra[2]; | ||
2690 | return 0; | ||
2691 | } | ||
2692 | |||
2693 | for (i = 0; i < iface->desc.bNumEndpoints; i++) { | ||
2694 | if (iface->endpoint[i].extralen == 3) { | ||
2695 | *ports = iface->endpoint[i].extra[2]; | ||
2696 | return 0; | ||
2697 | } | ||
2698 | } | ||
2699 | |||
2700 | return -1; | ||
2701 | } | ||
2702 | |||
2703 | /* interrupt urb needs to be submitted, used for serial read of muxed port */ | ||
2704 | static int hso_mux_submit_intr_urb(struct hso_shared_int *shared_int, | ||
2705 | struct usb_device *usb, gfp_t gfp) | ||
2706 | { | ||
2707 | int result; | ||
2708 | |||
2709 | usb_fill_int_urb(shared_int->shared_intr_urb, usb, | ||
2710 | usb_rcvintpipe(usb, | ||
2711 | shared_int->intr_endp->bEndpointAddress & 0x7F), | ||
2712 | shared_int->shared_intr_buf, | ||
2713 | shared_int->intr_endp->wMaxPacketSize, | ||
2714 | intr_callback, shared_int, | ||
2715 | shared_int->intr_endp->bInterval); | ||
2716 | |||
2717 | result = usb_submit_urb(shared_int->shared_intr_urb, gfp); | ||
2718 | if (result) | ||
2719 | dev_warn(&usb->dev, "%s failed mux_intr_urb %d", __func__, | ||
2720 | result); | ||
2721 | |||
2722 | return result; | ||
2723 | } | ||
2724 | |||
2725 | /* operations setup of the serial interface */ | ||
2726 | static struct tty_operations hso_serial_ops = { | ||
2727 | .open = hso_serial_open, | ||
2728 | .close = hso_serial_close, | ||
2729 | .write = hso_serial_write, | ||
2730 | .write_room = hso_serial_write_room, | ||
2731 | .set_termios = hso_serial_set_termios, | ||
2732 | .chars_in_buffer = hso_serial_chars_in_buffer, | ||
2733 | .tiocmget = hso_serial_tiocmget, | ||
2734 | .tiocmset = hso_serial_tiocmset, | ||
2735 | }; | ||
2736 | |||
2737 | static struct usb_driver hso_driver = { | ||
2738 | .name = driver_name, | ||
2739 | .probe = hso_probe, | ||
2740 | .disconnect = hso_disconnect, | ||
2741 | .id_table = hso_ids, | ||
2742 | .suspend = hso_suspend, | ||
2743 | .resume = hso_resume, | ||
2744 | .supports_autosuspend = 1, | ||
2745 | }; | ||
2746 | |||
2747 | static int __init hso_init(void) | ||
2748 | { | ||
2749 | int i; | ||
2750 | int result; | ||
2751 | |||
2752 | /* put it in the log */ | ||
2753 | printk(KERN_INFO "hso: %s\n", version); | ||
2754 | |||
2755 | /* Initialise the serial table semaphore and table */ | ||
2756 | spin_lock_init(&serial_table_lock); | ||
2757 | for (i = 0; i < HSO_SERIAL_TTY_MINORS; i++) | ||
2758 | serial_table[i] = NULL; | ||
2759 | |||
2760 | /* allocate our driver using the proper amount of supported minors */ | ||
2761 | tty_drv = alloc_tty_driver(HSO_SERIAL_TTY_MINORS); | ||
2762 | if (!tty_drv) | ||
2763 | return -ENOMEM; | ||
2764 | |||
2765 | /* fill in all needed values */ | ||
2766 | tty_drv->magic = TTY_DRIVER_MAGIC; | ||
2767 | tty_drv->owner = THIS_MODULE; | ||
2768 | tty_drv->driver_name = driver_name; | ||
2769 | tty_drv->name = tty_filename; | ||
2770 | |||
2771 | /* if major number is provided as parameter, use that one */ | ||
2772 | if (tty_major) | ||
2773 | tty_drv->major = tty_major; | ||
2774 | |||
2775 | tty_drv->minor_start = 0; | ||
2776 | tty_drv->num = HSO_SERIAL_TTY_MINORS; | ||
2777 | tty_drv->type = TTY_DRIVER_TYPE_SERIAL; | ||
2778 | tty_drv->subtype = SERIAL_TYPE_NORMAL; | ||
2779 | tty_drv->flags = TTY_DRIVER_REAL_RAW | TTY_DRIVER_DYNAMIC_DEV; | ||
2780 | tty_drv->init_termios = tty_std_termios; | ||
2781 | tty_drv->init_termios.c_cflag = B9600 | CS8 | CREAD | HUPCL | CLOCAL; | ||
2782 | tty_drv->termios = hso_serial_termios; | ||
2783 | tty_drv->termios_locked = hso_serial_termios_locked; | ||
2784 | tty_set_operations(tty_drv, &hso_serial_ops); | ||
2785 | |||
2786 | /* register the tty driver */ | ||
2787 | result = tty_register_driver(tty_drv); | ||
2788 | if (result) { | ||
2789 | printk(KERN_ERR "%s - tty_register_driver failed(%d)\n", | ||
2790 | __func__, result); | ||
2791 | return result; | ||
2792 | } | ||
2793 | |||
2794 | /* register this module as an usb driver */ | ||
2795 | result = usb_register(&hso_driver); | ||
2796 | if (result) { | ||
2797 | printk(KERN_ERR "Could not register hso driver? error: %d\n", | ||
2798 | result); | ||
2799 | /* cleanup serial interface */ | ||
2800 | tty_unregister_driver(tty_drv); | ||
2801 | return result; | ||
2802 | } | ||
2803 | |||
2804 | /* done */ | ||
2805 | return 0; | ||
2806 | } | ||
2807 | |||
2808 | static void __exit hso_exit(void) | ||
2809 | { | ||
2810 | printk(KERN_INFO "hso: unloaded\n"); | ||
2811 | |||
2812 | tty_unregister_driver(tty_drv); | ||
2813 | /* deregister the usb driver */ | ||
2814 | usb_deregister(&hso_driver); | ||
2815 | } | ||
2816 | |||
2817 | /* Module definitions */ | ||
2818 | module_init(hso_init); | ||
2819 | module_exit(hso_exit); | ||
2820 | |||
2821 | MODULE_AUTHOR(MOD_AUTHOR); | ||
2822 | MODULE_DESCRIPTION(MOD_DESCRIPTION); | ||
2823 | MODULE_LICENSE(MOD_LICENSE); | ||
2824 | MODULE_INFO(Version, DRIVER_VERSION); | ||
2825 | |||
2826 | /* change the debug level (eg: insmod hso.ko debug=0x04) */ | ||
2827 | MODULE_PARM_DESC(debug, "Level of debug [0x01 | 0x02 | 0x04 | 0x08 | 0x10]"); | ||
2828 | module_param(debug, int, S_IRUGO | S_IWUSR); | ||
2829 | |||
2830 | /* set the major tty number (eg: insmod hso.ko tty_major=245) */ | ||
2831 | MODULE_PARM_DESC(tty_major, "Set the major tty number"); | ||
2832 | module_param(tty_major, int, S_IRUGO | S_IWUSR); | ||
2833 | |||
2834 | /* disable network interface (eg: insmod hso.ko disable_net=1) */ | ||
2835 | MODULE_PARM_DESC(disable_net, "Disable the network interface"); | ||
2836 | module_param(disable_net, int, S_IRUGO | S_IWUSR); | ||