Commit | Line | Data |
---|---|---|
52af9545 BP |
1 | /* |
2 | * usb-serial driver for Quatech SSU-100 | |
3 | * | |
4 | * based on ftdi_sio.c and the original serqt_usb.c from Quatech | |
5 | * | |
6 | */ | |
7 | ||
8 | #include <linux/errno.h> | |
52af9545 BP |
9 | #include <linux/slab.h> |
10 | #include <linux/tty.h> | |
11 | #include <linux/tty_driver.h> | |
12 | #include <linux/tty_flip.h> | |
13 | #include <linux/module.h> | |
14 | #include <linux/serial.h> | |
15 | #include <linux/usb.h> | |
16 | #include <linux/usb/serial.h> | |
79f203a2 | 17 | #include <linux/serial_reg.h> |
52af9545 BP |
18 | #include <linux/uaccess.h> |
19 | ||
20 | #define QT_OPEN_CLOSE_CHANNEL 0xca | |
21 | #define QT_SET_GET_DEVICE 0xc2 | |
22 | #define QT_SET_GET_REGISTER 0xc0 | |
23 | #define QT_GET_SET_PREBUF_TRIG_LVL 0xcc | |
24 | #define QT_SET_ATF 0xcd | |
25 | #define QT_GET_SET_UART 0xc1 | |
26 | #define QT_TRANSFER_IN 0xc0 | |
27 | #define QT_HW_FLOW_CONTROL_MASK 0xc5 | |
28 | #define QT_SW_FLOW_CONTROL_MASK 0xc6 | |
29 | ||
52af9545 BP |
30 | #define SERIAL_MSR_MASK 0xf0 |
31 | ||
79f203a2 | 32 | #define SERIAL_CRTSCTS ((UART_MCR_RTS << 8) | UART_MSR_CTS) |
52af9545 | 33 | |
79f203a2 | 34 | #define SERIAL_EVEN_PARITY (UART_LCR_PARITY | UART_LCR_EPAR) |
52af9545 BP |
35 | |
36 | #define MAX_BAUD_RATE 460800 | |
37 | ||
38 | #define ATC_DISABLED 0x00 | |
39 | #define DUPMODE_BITS 0xc0 | |
40 | #define RR_BITS 0x03 | |
41 | #define LOOPMODE_BITS 0x41 | |
42 | #define RS232_MODE 0x00 | |
43 | #define RTSCTS_TO_CONNECTOR 0x40 | |
44 | #define CLKS_X4 0x02 | |
45 | #define FULLPWRBIT 0x00000080 | |
46 | #define NEXT_BOARD_POWER_BIT 0x00000004 | |
47 | ||
52af9545 BP |
48 | #define DRIVER_DESC "Quatech SSU-100 USB to Serial Driver" |
49 | ||
50 | #define USB_VENDOR_ID_QUATECH 0x061d /* Quatech VID */ | |
51 | #define QUATECH_SSU100 0xC020 /* SSU100 */ | |
52 | ||
53 | static const struct usb_device_id id_table[] = { | |
54 | {USB_DEVICE(USB_VENDOR_ID_QUATECH, QUATECH_SSU100)}, | |
55 | {} /* Terminating entry */ | |
56 | }; | |
52af9545 BP |
57 | MODULE_DEVICE_TABLE(usb, id_table); |
58 | ||
52af9545 | 59 | struct ssu100_port_private { |
17523058 | 60 | spinlock_t status_lock; |
52af9545 BP |
61 | u8 shadowLSR; |
62 | u8 shadowMSR; | |
52af9545 BP |
63 | }; |
64 | ||
52af9545 BP |
65 | static inline int ssu100_control_msg(struct usb_device *dev, |
66 | u8 request, u16 data, u16 index) | |
67 | { | |
68 | return usb_control_msg(dev, usb_sndctrlpipe(dev, 0), | |
69 | request, 0x40, data, index, | |
70 | NULL, 0, 300); | |
71 | } | |
72 | ||
73 | static inline int ssu100_setdevice(struct usb_device *dev, u8 *data) | |
74 | { | |
75 | u16 x = ((u16)(data[1] << 8) | (u16)(data[0])); | |
76 | ||
77 | return ssu100_control_msg(dev, QT_SET_GET_DEVICE, x, 0); | |
78 | } | |
79 | ||
80 | ||
81 | static inline int ssu100_getdevice(struct usb_device *dev, u8 *data) | |
82 | { | |
83 | return usb_control_msg(dev, usb_rcvctrlpipe(dev, 0), | |
84 | QT_SET_GET_DEVICE, 0xc0, 0, 0, | |
85 | data, 3, 300); | |
86 | } | |
87 | ||
88 | static inline int ssu100_getregister(struct usb_device *dev, | |
89 | unsigned short uart, | |
90 | unsigned short reg, | |
91 | u8 *data) | |
92 | { | |
93 | return usb_control_msg(dev, usb_rcvctrlpipe(dev, 0), | |
94 | QT_SET_GET_REGISTER, 0xc0, reg, | |
95 | uart, data, sizeof(*data), 300); | |
96 | ||
97 | } | |
98 | ||
99 | ||
100 | static inline int ssu100_setregister(struct usb_device *dev, | |
101 | unsigned short uart, | |
556f1a0e | 102 | unsigned short reg, |
52af9545 BP |
103 | u16 data) |
104 | { | |
556f1a0e | 105 | u16 value = (data << 8) | reg; |
52af9545 BP |
106 | |
107 | return usb_control_msg(dev, usb_sndctrlpipe(dev, 0), | |
108 | QT_SET_GET_REGISTER, 0x40, value, uart, | |
109 | NULL, 0, 300); | |
110 | ||
111 | } | |
112 | ||
113 | #define set_mctrl(dev, set) update_mctrl((dev), (set), 0) | |
114 | #define clear_mctrl(dev, clear) update_mctrl((dev), 0, (clear)) | |
115 | ||
116 | /* these do not deal with device that have more than 1 port */ | |
117 | static inline int update_mctrl(struct usb_device *dev, unsigned int set, | |
118 | unsigned int clear) | |
119 | { | |
120 | unsigned urb_value; | |
121 | int result; | |
122 | ||
123 | if (((set | clear) & (TIOCM_DTR | TIOCM_RTS)) == 0) { | |
4f0c6412 | 124 | dev_dbg(&dev->dev, "%s - DTR|RTS not being set|cleared\n", __func__); |
52af9545 BP |
125 | return 0; /* no change */ |
126 | } | |
127 | ||
128 | clear &= ~set; /* 'set' takes precedence over 'clear' */ | |
129 | urb_value = 0; | |
130 | if (set & TIOCM_DTR) | |
79f203a2 | 131 | urb_value |= UART_MCR_DTR; |
52af9545 | 132 | if (set & TIOCM_RTS) |
79f203a2 | 133 | urb_value |= UART_MCR_RTS; |
52af9545 | 134 | |
556f1a0e | 135 | result = ssu100_setregister(dev, 0, UART_MCR, urb_value); |
52af9545 | 136 | if (result < 0) |
4f0c6412 | 137 | dev_dbg(&dev->dev, "%s Error from MODEM_CTRL urb\n", __func__); |
52af9545 BP |
138 | |
139 | return result; | |
140 | } | |
141 | ||
142 | static int ssu100_initdevice(struct usb_device *dev) | |
143 | { | |
144 | u8 *data; | |
145 | int result = 0; | |
146 | ||
52af9545 BP |
147 | data = kzalloc(3, GFP_KERNEL); |
148 | if (!data) | |
149 | return -ENOMEM; | |
150 | ||
151 | result = ssu100_getdevice(dev, data); | |
152 | if (result < 0) { | |
4f0c6412 | 153 | dev_dbg(&dev->dev, "%s - get_device failed %i\n", __func__, result); |
52af9545 BP |
154 | goto out; |
155 | } | |
156 | ||
157 | data[1] &= ~FULLPWRBIT; | |
158 | ||
159 | result = ssu100_setdevice(dev, data); | |
160 | if (result < 0) { | |
4f0c6412 | 161 | dev_dbg(&dev->dev, "%s - setdevice failed %i\n", __func__, result); |
52af9545 BP |
162 | goto out; |
163 | } | |
164 | ||
165 | result = ssu100_control_msg(dev, QT_GET_SET_PREBUF_TRIG_LVL, 128, 0); | |
166 | if (result < 0) { | |
4f0c6412 | 167 | dev_dbg(&dev->dev, "%s - set prebuffer level failed %i\n", __func__, result); |
52af9545 BP |
168 | goto out; |
169 | } | |
170 | ||
171 | result = ssu100_control_msg(dev, QT_SET_ATF, ATC_DISABLED, 0); | |
172 | if (result < 0) { | |
4f0c6412 | 173 | dev_dbg(&dev->dev, "%s - set ATFprebuffer level failed %i\n", __func__, result); |
52af9545 BP |
174 | goto out; |
175 | } | |
176 | ||
177 | result = ssu100_getdevice(dev, data); | |
178 | if (result < 0) { | |
4f0c6412 | 179 | dev_dbg(&dev->dev, "%s - get_device failed %i\n", __func__, result); |
52af9545 BP |
180 | goto out; |
181 | } | |
182 | ||
183 | data[0] &= ~(RR_BITS | DUPMODE_BITS); | |
184 | data[0] |= CLKS_X4; | |
185 | data[1] &= ~(LOOPMODE_BITS); | |
186 | data[1] |= RS232_MODE; | |
187 | ||
188 | result = ssu100_setdevice(dev, data); | |
189 | if (result < 0) { | |
4f0c6412 | 190 | dev_dbg(&dev->dev, "%s - setdevice failed %i\n", __func__, result); |
52af9545 BP |
191 | goto out; |
192 | } | |
193 | ||
194 | out: kfree(data); | |
195 | return result; | |
196 | ||
197 | } | |
198 | ||
199 | ||
200 | static void ssu100_set_termios(struct tty_struct *tty, | |
201 | struct usb_serial_port *port, | |
202 | struct ktermios *old_termios) | |
203 | { | |
204 | struct usb_device *dev = port->serial->dev; | |
adc8d746 | 205 | struct ktermios *termios = &tty->termios; |
52af9545 BP |
206 | u16 baud, divisor, remainder; |
207 | unsigned int cflag = termios->c_cflag; | |
208 | u16 urb_value = 0; /* will hold the new flags */ | |
209 | int result; | |
210 | ||
52af9545 BP |
211 | if (cflag & PARENB) { |
212 | if (cflag & PARODD) | |
79f203a2 | 213 | urb_value |= UART_LCR_PARITY; |
52af9545 BP |
214 | else |
215 | urb_value |= SERIAL_EVEN_PARITY; | |
216 | } | |
217 | ||
218 | switch (cflag & CSIZE) { | |
219 | case CS5: | |
79f203a2 | 220 | urb_value |= UART_LCR_WLEN5; |
52af9545 BP |
221 | break; |
222 | case CS6: | |
79f203a2 | 223 | urb_value |= UART_LCR_WLEN6; |
52af9545 BP |
224 | break; |
225 | case CS7: | |
79f203a2 | 226 | urb_value |= UART_LCR_WLEN7; |
52af9545 BP |
227 | break; |
228 | default: | |
229 | case CS8: | |
79f203a2 | 230 | urb_value |= UART_LCR_WLEN8; |
52af9545 BP |
231 | break; |
232 | } | |
233 | ||
234 | baud = tty_get_baud_rate(tty); | |
235 | if (!baud) | |
236 | baud = 9600; | |
237 | ||
4f0c6412 | 238 | dev_dbg(&port->dev, "%s - got baud = %d\n", __func__, baud); |
52af9545 BP |
239 | |
240 | ||
241 | divisor = MAX_BAUD_RATE / baud; | |
242 | remainder = MAX_BAUD_RATE % baud; | |
243 | if (((remainder * 2) >= baud) && (baud != 110)) | |
244 | divisor++; | |
245 | ||
246 | urb_value = urb_value << 8; | |
247 | ||
248 | result = ssu100_control_msg(dev, QT_GET_SET_UART, divisor, urb_value); | |
249 | if (result < 0) | |
4f0c6412 | 250 | dev_dbg(&port->dev, "%s - set uart failed\n", __func__); |
52af9545 BP |
251 | |
252 | if (cflag & CRTSCTS) | |
253 | result = ssu100_control_msg(dev, QT_HW_FLOW_CONTROL_MASK, | |
254 | SERIAL_CRTSCTS, 0); | |
255 | else | |
256 | result = ssu100_control_msg(dev, QT_HW_FLOW_CONTROL_MASK, | |
257 | 0, 0); | |
258 | if (result < 0) | |
4f0c6412 | 259 | dev_dbg(&port->dev, "%s - set HW flow control failed\n", __func__); |
52af9545 BP |
260 | |
261 | if (I_IXOFF(tty) || I_IXON(tty)) { | |
262 | u16 x = ((u16)(START_CHAR(tty) << 8) | (u16)(STOP_CHAR(tty))); | |
263 | ||
264 | result = ssu100_control_msg(dev, QT_SW_FLOW_CONTROL_MASK, | |
265 | x, 0); | |
266 | } else | |
267 | result = ssu100_control_msg(dev, QT_SW_FLOW_CONTROL_MASK, | |
268 | 0, 0); | |
269 | ||
270 | if (result < 0) | |
4f0c6412 | 271 | dev_dbg(&port->dev, "%s - set SW flow control failed\n", __func__); |
52af9545 BP |
272 | |
273 | } | |
274 | ||
275 | ||
276 | static int ssu100_open(struct tty_struct *tty, struct usb_serial_port *port) | |
277 | { | |
278 | struct usb_device *dev = port->serial->dev; | |
279 | struct ssu100_port_private *priv = usb_get_serial_port_data(port); | |
280 | u8 *data; | |
281 | int result; | |
17523058 | 282 | unsigned long flags; |
52af9545 | 283 | |
52af9545 BP |
284 | data = kzalloc(2, GFP_KERNEL); |
285 | if (!data) | |
286 | return -ENOMEM; | |
287 | ||
288 | result = usb_control_msg(dev, usb_rcvctrlpipe(dev, 0), | |
289 | QT_OPEN_CLOSE_CHANNEL, | |
290 | QT_TRANSFER_IN, 0x01, | |
291 | 0, data, 2, 300); | |
292 | if (result < 0) { | |
4f0c6412 | 293 | dev_dbg(&port->dev, "%s - open failed %i\n", __func__, result); |
52af9545 BP |
294 | kfree(data); |
295 | return result; | |
296 | } | |
297 | ||
17523058 | 298 | spin_lock_irqsave(&priv->status_lock, flags); |
f81c83db BP |
299 | priv->shadowLSR = data[0]; |
300 | priv->shadowMSR = data[1]; | |
17523058 | 301 | spin_unlock_irqrestore(&priv->status_lock, flags); |
52af9545 BP |
302 | |
303 | kfree(data); | |
304 | ||
305 | /* set to 9600 */ | |
306 | result = ssu100_control_msg(dev, QT_GET_SET_UART, 0x30, 0x0300); | |
307 | if (result < 0) | |
4f0c6412 | 308 | dev_dbg(&port->dev, "%s - set uart failed\n", __func__); |
52af9545 BP |
309 | |
310 | if (tty) | |
adc8d746 | 311 | ssu100_set_termios(tty, port, &tty->termios); |
52af9545 BP |
312 | |
313 | return usb_serial_generic_open(tty, port); | |
314 | } | |
315 | ||
52af9545 BP |
316 | static int get_serial_info(struct usb_serial_port *port, |
317 | struct serial_struct __user *retinfo) | |
318 | { | |
319 | struct serial_struct tmp; | |
320 | ||
321 | if (!retinfo) | |
322 | return -EFAULT; | |
323 | ||
324 | memset(&tmp, 0, sizeof(tmp)); | |
e5b1e206 | 325 | tmp.line = port->minor; |
52af9545 BP |
326 | tmp.port = 0; |
327 | tmp.irq = 0; | |
328 | tmp.flags = ASYNC_SKIP_TEST | ASYNC_AUTO_IRQ; | |
329 | tmp.xmit_fifo_size = port->bulk_out_size; | |
330 | tmp.baud_base = 9600; | |
331 | tmp.close_delay = 5*HZ; | |
332 | tmp.closing_wait = 30*HZ; | |
333 | ||
334 | if (copy_to_user(retinfo, &tmp, sizeof(*retinfo))) | |
335 | return -EFAULT; | |
336 | return 0; | |
337 | } | |
338 | ||
00a0d0d6 | 339 | static int ssu100_ioctl(struct tty_struct *tty, |
52af9545 BP |
340 | unsigned int cmd, unsigned long arg) |
341 | { | |
342 | struct usb_serial_port *port = tty->driver_data; | |
52af9545 | 343 | |
52af9545 BP |
344 | switch (cmd) { |
345 | case TIOCGSERIAL: | |
346 | return get_serial_info(port, | |
347 | (struct serial_struct __user *) arg); | |
52af9545 BP |
348 | default: |
349 | break; | |
350 | } | |
351 | ||
52af9545 BP |
352 | return -ENOIOCTLCMD; |
353 | } | |
354 | ||
52af9545 | 355 | static int ssu100_attach(struct usb_serial *serial) |
638b9e15 JH |
356 | { |
357 | return ssu100_initdevice(serial->dev); | |
358 | } | |
359 | ||
360 | static int ssu100_port_probe(struct usb_serial_port *port) | |
52af9545 BP |
361 | { |
362 | struct ssu100_port_private *priv; | |
52af9545 | 363 | |
52af9545 | 364 | priv = kzalloc(sizeof(*priv), GFP_KERNEL); |
638b9e15 | 365 | if (!priv) |
52af9545 | 366 | return -ENOMEM; |
52af9545 | 367 | |
17523058 | 368 | spin_lock_init(&priv->status_lock); |
638b9e15 | 369 | |
52af9545 | 370 | usb_set_serial_port_data(port, priv); |
52af9545 | 371 | |
638b9e15 JH |
372 | return 0; |
373 | } | |
374 | ||
375 | static int ssu100_port_remove(struct usb_serial_port *port) | |
376 | { | |
377 | struct ssu100_port_private *priv; | |
378 | ||
379 | priv = usb_get_serial_port_data(port); | |
380 | kfree(priv); | |
381 | ||
382 | return 0; | |
52af9545 BP |
383 | } |
384 | ||
60b33c13 | 385 | static int ssu100_tiocmget(struct tty_struct *tty) |
52af9545 BP |
386 | { |
387 | struct usb_serial_port *port = tty->driver_data; | |
388 | struct usb_device *dev = port->serial->dev; | |
389 | u8 *d; | |
390 | int r; | |
391 | ||
52af9545 BP |
392 | d = kzalloc(2, GFP_KERNEL); |
393 | if (!d) | |
394 | return -ENOMEM; | |
395 | ||
79f203a2 | 396 | r = ssu100_getregister(dev, 0, UART_MCR, d); |
52af9545 BP |
397 | if (r < 0) |
398 | goto mget_out; | |
399 | ||
79f203a2 | 400 | r = ssu100_getregister(dev, 0, UART_MSR, d+1); |
52af9545 BP |
401 | if (r < 0) |
402 | goto mget_out; | |
403 | ||
79f203a2 BP |
404 | r = (d[0] & UART_MCR_DTR ? TIOCM_DTR : 0) | |
405 | (d[0] & UART_MCR_RTS ? TIOCM_RTS : 0) | | |
406 | (d[1] & UART_MSR_CTS ? TIOCM_CTS : 0) | | |
407 | (d[1] & UART_MSR_DCD ? TIOCM_CAR : 0) | | |
408 | (d[1] & UART_MSR_RI ? TIOCM_RI : 0) | | |
409 | (d[1] & UART_MSR_DSR ? TIOCM_DSR : 0); | |
52af9545 BP |
410 | |
411 | mget_out: | |
412 | kfree(d); | |
413 | return r; | |
414 | } | |
415 | ||
20b9d177 | 416 | static int ssu100_tiocmset(struct tty_struct *tty, |
52af9545 BP |
417 | unsigned int set, unsigned int clear) |
418 | { | |
419 | struct usb_serial_port *port = tty->driver_data; | |
420 | struct usb_device *dev = port->serial->dev; | |
421 | ||
52af9545 BP |
422 | return update_mctrl(dev, set, clear); |
423 | } | |
424 | ||
425 | static void ssu100_dtr_rts(struct usb_serial_port *port, int on) | |
426 | { | |
427 | struct usb_device *dev = port->serial->dev; | |
428 | ||
b2ca6990 JH |
429 | /* Disable flow control */ |
430 | if (!on) { | |
431 | if (ssu100_setregister(dev, 0, UART_MCR, 0) < 0) | |
52af9545 | 432 | dev_err(&port->dev, "error from flowcontrol urb\n"); |
52af9545 | 433 | } |
b2ca6990 JH |
434 | /* drop RTS and DTR */ |
435 | if (on) | |
436 | set_mctrl(dev, TIOCM_DTR | TIOCM_RTS); | |
437 | else | |
438 | clear_mctrl(dev, TIOCM_DTR | TIOCM_RTS); | |
52af9545 BP |
439 | } |
440 | ||
f81c83db BP |
441 | static void ssu100_update_msr(struct usb_serial_port *port, u8 msr) |
442 | { | |
443 | struct ssu100_port_private *priv = usb_get_serial_port_data(port); | |
444 | unsigned long flags; | |
445 | ||
446 | spin_lock_irqsave(&priv->status_lock, flags); | |
447 | priv->shadowMSR = msr; | |
448 | spin_unlock_irqrestore(&priv->status_lock, flags); | |
449 | ||
450 | if (msr & UART_MSR_ANY_DELTA) { | |
451 | /* update input line counters */ | |
452 | if (msr & UART_MSR_DCTS) | |
31ecdb6b | 453 | port->icount.cts++; |
f81c83db | 454 | if (msr & UART_MSR_DDSR) |
31ecdb6b | 455 | port->icount.dsr++; |
f81c83db | 456 | if (msr & UART_MSR_DDCD) |
31ecdb6b | 457 | port->icount.dcd++; |
f81c83db | 458 | if (msr & UART_MSR_TERI) |
31ecdb6b | 459 | port->icount.rng++; |
c24c838e | 460 | wake_up_interruptible(&port->port.delta_msr_wait); |
f81c83db BP |
461 | } |
462 | } | |
463 | ||
6b8f1ca5 BP |
464 | static void ssu100_update_lsr(struct usb_serial_port *port, u8 lsr, |
465 | char *tty_flag) | |
f81c83db BP |
466 | { |
467 | struct ssu100_port_private *priv = usb_get_serial_port_data(port); | |
468 | unsigned long flags; | |
469 | ||
470 | spin_lock_irqsave(&priv->status_lock, flags); | |
471 | priv->shadowLSR = lsr; | |
472 | spin_unlock_irqrestore(&priv->status_lock, flags); | |
473 | ||
6b8f1ca5 | 474 | *tty_flag = TTY_NORMAL; |
f81c83db | 475 | if (lsr & UART_LSR_BRK_ERROR_BITS) { |
6b8f1ca5 BP |
476 | /* we always want to update icount, but we only want to |
477 | * update tty_flag for one case */ | |
478 | if (lsr & UART_LSR_BI) { | |
31ecdb6b | 479 | port->icount.brk++; |
6b8f1ca5 BP |
480 | *tty_flag = TTY_BREAK; |
481 | usb_serial_handle_break(port); | |
482 | } | |
483 | if (lsr & UART_LSR_PE) { | |
31ecdb6b | 484 | port->icount.parity++; |
6b8f1ca5 BP |
485 | if (*tty_flag == TTY_NORMAL) |
486 | *tty_flag = TTY_PARITY; | |
487 | } | |
488 | if (lsr & UART_LSR_FE) { | |
31ecdb6b | 489 | port->icount.frame++; |
6b8f1ca5 BP |
490 | if (*tty_flag == TTY_NORMAL) |
491 | *tty_flag = TTY_FRAME; | |
492 | } | |
75bcbf29 | 493 | if (lsr & UART_LSR_OE) { |
31ecdb6b | 494 | port->icount.overrun++; |
75bcbf29 | 495 | tty_insert_flip_char(&port->port, 0, TTY_OVERRUN); |
6b8f1ca5 | 496 | } |
f81c83db | 497 | } |
6b8f1ca5 | 498 | |
f81c83db BP |
499 | } |
500 | ||
2e124b4a | 501 | static void ssu100_process_read_urb(struct urb *urb) |
52af9545 | 502 | { |
f7043ecb BP |
503 | struct usb_serial_port *port = urb->context; |
504 | char *packet = (char *)urb->transfer_buffer; | |
6b8f1ca5 | 505 | char flag = TTY_NORMAL; |
f7043ecb BP |
506 | u32 len = urb->actual_length; |
507 | int i; | |
52af9545 BP |
508 | char *ch; |
509 | ||
9b2cef31 BP |
510 | if ((len >= 4) && |
511 | (packet[0] == 0x1b) && (packet[1] == 0x1b) && | |
52af9545 | 512 | ((packet[2] == 0x00) || (packet[2] == 0x01))) { |
75bcbf29 | 513 | if (packet[2] == 0x00) |
6b8f1ca5 | 514 | ssu100_update_lsr(port, packet[3], &flag); |
f81c83db BP |
515 | if (packet[2] == 0x01) |
516 | ssu100_update_msr(port, packet[3]); | |
52af9545 BP |
517 | |
518 | len -= 4; | |
519 | ch = packet + 4; | |
520 | } else | |
521 | ch = packet; | |
522 | ||
523 | if (!len) | |
2e124b4a | 524 | return; /* status only */ |
52af9545 BP |
525 | |
526 | if (port->port.console && port->sysrq) { | |
527 | for (i = 0; i < len; i++, ch++) { | |
6ee9f4b4 | 528 | if (!usb_serial_handle_sysrq_char(port, *ch)) |
92a19f9c | 529 | tty_insert_flip_char(&port->port, *ch, flag); |
52af9545 BP |
530 | } |
531 | } else | |
2f693357 | 532 | tty_insert_flip_string_fixed_flag(&port->port, ch, flag, len); |
52af9545 | 533 | |
2e124b4a | 534 | tty_flip_buffer_push(&port->port); |
52af9545 BP |
535 | } |
536 | ||
52af9545 BP |
537 | static struct usb_serial_driver ssu100_device = { |
538 | .driver = { | |
539 | .owner = THIS_MODULE, | |
540 | .name = "ssu100", | |
541 | }, | |
542 | .description = DRIVER_DESC, | |
543 | .id_table = id_table, | |
52af9545 | 544 | .num_ports = 1, |
52af9545 | 545 | .open = ssu100_open, |
52af9545 | 546 | .attach = ssu100_attach, |
638b9e15 JH |
547 | .port_probe = ssu100_port_probe, |
548 | .port_remove = ssu100_port_remove, | |
52af9545 BP |
549 | .dtr_rts = ssu100_dtr_rts, |
550 | .process_read_urb = ssu100_process_read_urb, | |
551 | .tiocmget = ssu100_tiocmget, | |
552 | .tiocmset = ssu100_tiocmset, | |
c24c838e | 553 | .tiocmiwait = usb_serial_generic_tiocmiwait, |
31ecdb6b | 554 | .get_icount = usb_serial_generic_get_icount, |
52af9545 BP |
555 | .ioctl = ssu100_ioctl, |
556 | .set_termios = ssu100_set_termios, | |
557 | }; | |
558 | ||
d860322f AS |
559 | static struct usb_serial_driver * const serial_drivers[] = { |
560 | &ssu100_device, NULL | |
561 | }; | |
562 | ||
68e24113 | 563 | module_usb_serial_driver(serial_drivers, id_table); |
52af9545 BP |
564 | |
565 | MODULE_DESCRIPTION(DRIVER_DESC); | |
566 | MODULE_LICENSE("GPL"); |