3 * TI 3410/5052 USB Serial Driver
5 * Copyright (C) 2004 Texas Instruments
7 * This driver is based on the Linux io_ti driver, which is
8 * Copyright (C) 2000-2002 Inside Out Networks
9 * Copyright (C) 2001-2002 Greg Kroah-Hartman
11 * This program is free software; you can redistribute it and/or modify
12 * it under the terms of the GNU General Public License as published by
13 * the Free Software Foundation; either version 2 of the License, or
14 * (at your option) any later version.
16 * For questions or problems with this driver, contact Texas Instruments
17 * technical support, or Al Borchers <alborchers@steinerpoint.com>, or
18 * Peter Berger <pberger@brimson.com>.
21 #include <linux/kernel.h>
22 #include <linux/errno.h>
23 #include <linux/firmware.h>
24 #include <linux/init.h>
25 #include <linux/slab.h>
26 #include <linux/tty.h>
27 #include <linux/tty_driver.h>
28 #include <linux/tty_flip.h>
29 #include <linux/module.h>
30 #include <linux/spinlock.h>
31 #include <linux/ioctl.h>
32 #include <linux/serial.h>
33 #include <linux/kfifo.h>
34 #include <linux/mutex.h>
35 #include <linux/uaccess.h>
36 #include <linux/usb.h>
37 #include <linux/usb/serial.h>
39 #include "ti_usb_3410_5052.h"
43 #define TI_DRIVER_AUTHOR "Al Borchers <alborchers@steinerpoint.com>"
44 #define TI_DRIVER_DESC "TI USB 3410/5052 Serial Driver"
46 #define TI_FIRMWARE_BUF_SIZE 16284
48 #define TI_WRITE_BUF_SIZE 1024
50 #define TI_TRANSFER_TIMEOUT 2
52 #define TI_DEFAULT_CLOSING_WAIT 4000 /* in .01 secs */
54 /* supported setserial flags */
55 #define TI_SET_SERIAL_FLAGS 0
58 #define TI_READ_URB_RUNNING 0
59 #define TI_READ_URB_STOPPING 1
60 #define TI_READ_URB_STOPPED 2
62 #define TI_EXTRA_VID_PID_COUNT 5
72 __u8 tp_uart_mode; /* 232 or 485 modes */
73 unsigned int tp_uart_base_addr;
75 int tp_closing_wait;/* in .01 secs */
76 struct async_icount tp_icount;
77 wait_queue_head_t tp_msr_wait; /* wait for msr change */
78 wait_queue_head_t tp_write_wait;
79 struct ti_device *tp_tdev;
80 struct usb_serial_port *tp_port;
82 int tp_read_urb_state;
83 int tp_write_urb_in_use;
84 struct kfifo write_fifo;
88 struct mutex td_open_close_lock;
89 int td_open_port_count;
90 struct usb_serial *td_serial;
96 /* Function Declarations */
98 static int ti_startup(struct usb_serial *serial);
99 static void ti_release(struct usb_serial *serial);
100 static int ti_port_probe(struct usb_serial_port *port);
101 static int ti_port_remove(struct usb_serial_port *port);
102 static int ti_open(struct tty_struct *tty, struct usb_serial_port *port);
103 static void ti_close(struct usb_serial_port *port);
104 static int ti_write(struct tty_struct *tty, struct usb_serial_port *port,
105 const unsigned char *data, int count);
106 static int ti_write_room(struct tty_struct *tty);
107 static int ti_chars_in_buffer(struct tty_struct *tty);
108 static void ti_throttle(struct tty_struct *tty);
109 static void ti_unthrottle(struct tty_struct *tty);
110 static int ti_ioctl(struct tty_struct *tty,
111 unsigned int cmd, unsigned long arg);
112 static int ti_get_icount(struct tty_struct *tty,
113 struct serial_icounter_struct *icount);
114 static void ti_set_termios(struct tty_struct *tty,
115 struct usb_serial_port *port, struct ktermios *old_termios);
116 static int ti_tiocmget(struct tty_struct *tty);
117 static int ti_tiocmset(struct tty_struct *tty,
118 unsigned int set, unsigned int clear);
119 static void ti_break(struct tty_struct *tty, int break_state);
120 static void ti_interrupt_callback(struct urb *urb);
121 static void ti_bulk_in_callback(struct urb *urb);
122 static void ti_bulk_out_callback(struct urb *urb);
124 static void ti_recv(struct usb_serial_port *port, unsigned char *data,
126 static void ti_send(struct ti_port *tport);
127 static int ti_set_mcr(struct ti_port *tport, unsigned int mcr);
128 static int ti_get_lsr(struct ti_port *tport);
129 static int ti_get_serial_info(struct ti_port *tport,
130 struct serial_struct __user *ret_arg);
131 static int ti_set_serial_info(struct tty_struct *tty, struct ti_port *tport,
132 struct serial_struct __user *new_arg);
133 static void ti_handle_new_msr(struct ti_port *tport, __u8 msr);
135 static void ti_drain(struct ti_port *tport, unsigned long timeout, int flush);
137 static void ti_stop_read(struct ti_port *tport, struct tty_struct *tty);
138 static int ti_restart_read(struct ti_port *tport, struct tty_struct *tty);
140 static int ti_command_out_sync(struct ti_device *tdev, __u8 command,
141 __u16 moduleid, __u16 value, __u8 *data, int size);
142 static int ti_command_in_sync(struct ti_device *tdev, __u8 command,
143 __u16 moduleid, __u16 value, __u8 *data, int size);
145 static int ti_write_byte(struct usb_serial_port *port, struct ti_device *tdev,
146 unsigned long addr, __u8 mask, __u8 byte);
148 static int ti_download_firmware(struct ti_device *tdev);
153 /* module parameters */
154 static int closing_wait = TI_DEFAULT_CLOSING_WAIT;
155 static ushort vendor_3410[TI_EXTRA_VID_PID_COUNT];
156 static unsigned int vendor_3410_count;
157 static ushort product_3410[TI_EXTRA_VID_PID_COUNT];
158 static unsigned int product_3410_count;
159 static ushort vendor_5052[TI_EXTRA_VID_PID_COUNT];
160 static unsigned int vendor_5052_count;
161 static ushort product_5052[TI_EXTRA_VID_PID_COUNT];
162 static unsigned int product_5052_count;
164 /* supported devices */
165 /* the array dimension is the number of default entries plus */
166 /* TI_EXTRA_VID_PID_COUNT user defined entries plus 1 terminating */
168 static struct usb_device_id ti_id_table_3410[15+TI_EXTRA_VID_PID_COUNT+1] = {
169 { USB_DEVICE(TI_VENDOR_ID, TI_3410_PRODUCT_ID) },
170 { USB_DEVICE(TI_VENDOR_ID, TI_3410_EZ430_ID) },
171 { USB_DEVICE(MTS_VENDOR_ID, MTS_GSM_NO_FW_PRODUCT_ID) },
172 { USB_DEVICE(MTS_VENDOR_ID, MTS_CDMA_NO_FW_PRODUCT_ID) },
173 { USB_DEVICE(MTS_VENDOR_ID, MTS_CDMA_PRODUCT_ID) },
174 { USB_DEVICE(MTS_VENDOR_ID, MTS_GSM_PRODUCT_ID) },
175 { USB_DEVICE(MTS_VENDOR_ID, MTS_EDGE_PRODUCT_ID) },
176 { USB_DEVICE(MTS_VENDOR_ID, MTS_MT9234MU_PRODUCT_ID) },
177 { USB_DEVICE(MTS_VENDOR_ID, MTS_MT9234ZBA_PRODUCT_ID) },
178 { USB_DEVICE(MTS_VENDOR_ID, MTS_MT9234ZBAOLD_PRODUCT_ID) },
179 { USB_DEVICE(IBM_VENDOR_ID, IBM_4543_PRODUCT_ID) },
180 { USB_DEVICE(IBM_VENDOR_ID, IBM_454B_PRODUCT_ID) },
181 { USB_DEVICE(IBM_VENDOR_ID, IBM_454C_PRODUCT_ID) },
182 { USB_DEVICE(ABBOTT_VENDOR_ID, ABBOTT_PRODUCT_ID) },
183 { USB_DEVICE(TI_VENDOR_ID, FRI2_PRODUCT_ID) },
186 static struct usb_device_id ti_id_table_5052[5+TI_EXTRA_VID_PID_COUNT+1] = {
187 { USB_DEVICE(TI_VENDOR_ID, TI_5052_BOOT_PRODUCT_ID) },
188 { USB_DEVICE(TI_VENDOR_ID, TI_5152_BOOT_PRODUCT_ID) },
189 { USB_DEVICE(TI_VENDOR_ID, TI_5052_EEPROM_PRODUCT_ID) },
190 { USB_DEVICE(TI_VENDOR_ID, TI_5052_FIRMWARE_PRODUCT_ID) },
193 static struct usb_device_id ti_id_table_combined[19+2*TI_EXTRA_VID_PID_COUNT+1] = {
194 { USB_DEVICE(TI_VENDOR_ID, TI_3410_PRODUCT_ID) },
195 { USB_DEVICE(TI_VENDOR_ID, TI_3410_EZ430_ID) },
196 { USB_DEVICE(MTS_VENDOR_ID, MTS_GSM_NO_FW_PRODUCT_ID) },
197 { USB_DEVICE(MTS_VENDOR_ID, MTS_CDMA_NO_FW_PRODUCT_ID) },
198 { USB_DEVICE(MTS_VENDOR_ID, MTS_CDMA_PRODUCT_ID) },
199 { USB_DEVICE(MTS_VENDOR_ID, MTS_GSM_PRODUCT_ID) },
200 { USB_DEVICE(MTS_VENDOR_ID, MTS_EDGE_PRODUCT_ID) },
201 { USB_DEVICE(MTS_VENDOR_ID, MTS_MT9234MU_PRODUCT_ID) },
202 { USB_DEVICE(MTS_VENDOR_ID, MTS_MT9234ZBA_PRODUCT_ID) },
203 { USB_DEVICE(MTS_VENDOR_ID, MTS_MT9234ZBAOLD_PRODUCT_ID) },
204 { USB_DEVICE(TI_VENDOR_ID, TI_5052_BOOT_PRODUCT_ID) },
205 { USB_DEVICE(TI_VENDOR_ID, TI_5152_BOOT_PRODUCT_ID) },
206 { USB_DEVICE(TI_VENDOR_ID, TI_5052_EEPROM_PRODUCT_ID) },
207 { USB_DEVICE(TI_VENDOR_ID, TI_5052_FIRMWARE_PRODUCT_ID) },
208 { USB_DEVICE(IBM_VENDOR_ID, IBM_4543_PRODUCT_ID) },
209 { USB_DEVICE(IBM_VENDOR_ID, IBM_454B_PRODUCT_ID) },
210 { USB_DEVICE(IBM_VENDOR_ID, IBM_454C_PRODUCT_ID) },
211 { USB_DEVICE(ABBOTT_VENDOR_ID, ABBOTT_PRODUCT_ID) },
212 { USB_DEVICE(TI_VENDOR_ID, FRI2_PRODUCT_ID) },
216 static struct usb_serial_driver ti_1port_device = {
218 .owner = THIS_MODULE,
219 .name = "ti_usb_3410_5052_1",
221 .description = "TI USB 3410 1 port adapter",
222 .id_table = ti_id_table_3410,
224 .attach = ti_startup,
225 .release = ti_release,
226 .port_probe = ti_port_probe,
227 .port_remove = ti_port_remove,
231 .write_room = ti_write_room,
232 .chars_in_buffer = ti_chars_in_buffer,
233 .throttle = ti_throttle,
234 .unthrottle = ti_unthrottle,
236 .set_termios = ti_set_termios,
237 .tiocmget = ti_tiocmget,
238 .tiocmset = ti_tiocmset,
239 .get_icount = ti_get_icount,
240 .break_ctl = ti_break,
241 .read_int_callback = ti_interrupt_callback,
242 .read_bulk_callback = ti_bulk_in_callback,
243 .write_bulk_callback = ti_bulk_out_callback,
246 static struct usb_serial_driver ti_2port_device = {
248 .owner = THIS_MODULE,
249 .name = "ti_usb_3410_5052_2",
251 .description = "TI USB 5052 2 port adapter",
252 .id_table = ti_id_table_5052,
254 .attach = ti_startup,
255 .release = ti_release,
256 .port_probe = ti_port_probe,
257 .port_remove = ti_port_remove,
261 .write_room = ti_write_room,
262 .chars_in_buffer = ti_chars_in_buffer,
263 .throttle = ti_throttle,
264 .unthrottle = ti_unthrottle,
266 .set_termios = ti_set_termios,
267 .tiocmget = ti_tiocmget,
268 .tiocmset = ti_tiocmset,
269 .get_icount = ti_get_icount,
270 .break_ctl = ti_break,
271 .read_int_callback = ti_interrupt_callback,
272 .read_bulk_callback = ti_bulk_in_callback,
273 .write_bulk_callback = ti_bulk_out_callback,
276 static struct usb_serial_driver * const serial_drivers[] = {
277 &ti_1port_device, &ti_2port_device, NULL
282 MODULE_AUTHOR(TI_DRIVER_AUTHOR);
283 MODULE_DESCRIPTION(TI_DRIVER_DESC);
284 MODULE_LICENSE("GPL");
286 MODULE_FIRMWARE("ti_3410.fw");
287 MODULE_FIRMWARE("ti_5052.fw");
288 MODULE_FIRMWARE("mts_cdma.fw");
289 MODULE_FIRMWARE("mts_gsm.fw");
290 MODULE_FIRMWARE("mts_edge.fw");
291 MODULE_FIRMWARE("mts_mt9234mu.fw");
292 MODULE_FIRMWARE("mts_mt9234zba.fw");
294 module_param(closing_wait, int, S_IRUGO | S_IWUSR);
295 MODULE_PARM_DESC(closing_wait,
296 "Maximum wait for data to drain in close, in .01 secs, default is 4000");
298 module_param_array(vendor_3410, ushort, &vendor_3410_count, S_IRUGO);
299 MODULE_PARM_DESC(vendor_3410,
300 "Vendor ids for 3410 based devices, 1-5 short integers");
301 module_param_array(product_3410, ushort, &product_3410_count, S_IRUGO);
302 MODULE_PARM_DESC(product_3410,
303 "Product ids for 3410 based devices, 1-5 short integers");
304 module_param_array(vendor_5052, ushort, &vendor_5052_count, S_IRUGO);
305 MODULE_PARM_DESC(vendor_5052,
306 "Vendor ids for 5052 based devices, 1-5 short integers");
307 module_param_array(product_5052, ushort, &product_5052_count, S_IRUGO);
308 MODULE_PARM_DESC(product_5052,
309 "Product ids for 5052 based devices, 1-5 short integers");
311 MODULE_DEVICE_TABLE(usb, ti_id_table_combined);
316 static int __init ti_init(void)
320 /* insert extra vendor and product ids */
321 c = ARRAY_SIZE(ti_id_table_combined) - 2 * TI_EXTRA_VID_PID_COUNT - 1;
322 j = ARRAY_SIZE(ti_id_table_3410) - TI_EXTRA_VID_PID_COUNT - 1;
323 for (i = 0; i < min(vendor_3410_count, product_3410_count); i++, j++, c++) {
324 ti_id_table_3410[j].idVendor = vendor_3410[i];
325 ti_id_table_3410[j].idProduct = product_3410[i];
326 ti_id_table_3410[j].match_flags = USB_DEVICE_ID_MATCH_DEVICE;
327 ti_id_table_combined[c].idVendor = vendor_3410[i];
328 ti_id_table_combined[c].idProduct = product_3410[i];
329 ti_id_table_combined[c].match_flags = USB_DEVICE_ID_MATCH_DEVICE;
331 j = ARRAY_SIZE(ti_id_table_5052) - TI_EXTRA_VID_PID_COUNT - 1;
332 for (i = 0; i < min(vendor_5052_count, product_5052_count); i++, j++, c++) {
333 ti_id_table_5052[j].idVendor = vendor_5052[i];
334 ti_id_table_5052[j].idProduct = product_5052[i];
335 ti_id_table_5052[j].match_flags = USB_DEVICE_ID_MATCH_DEVICE;
336 ti_id_table_combined[c].idVendor = vendor_5052[i];
337 ti_id_table_combined[c].idProduct = product_5052[i];
338 ti_id_table_combined[c].match_flags = USB_DEVICE_ID_MATCH_DEVICE;
341 return usb_serial_register_drivers(serial_drivers, KBUILD_MODNAME, ti_id_table_combined);
344 static void __exit ti_exit(void)
346 usb_serial_deregister_drivers(serial_drivers);
349 module_init(ti_init);
350 module_exit(ti_exit);
353 static int ti_startup(struct usb_serial *serial)
355 struct ti_device *tdev;
356 struct usb_device *dev = serial->dev;
360 "%s - product 0x%4X, num configurations %d, configuration value %d",
361 __func__, le16_to_cpu(dev->descriptor.idProduct),
362 dev->descriptor.bNumConfigurations,
363 dev->actconfig->desc.bConfigurationValue);
365 /* create device structure */
366 tdev = kzalloc(sizeof(struct ti_device), GFP_KERNEL);
368 dev_err(&dev->dev, "%s - out of memory\n", __func__);
371 mutex_init(&tdev->td_open_close_lock);
372 tdev->td_serial = serial;
373 usb_set_serial_data(serial, tdev);
375 /* determine device type */
376 if (usb_match_id(serial->interface, ti_id_table_3410))
377 tdev->td_is_3410 = 1;
378 dev_dbg(&dev->dev, "%s - device type is %s\n", __func__,
379 tdev->td_is_3410 ? "3410" : "5052");
381 /* if we have only 1 configuration, download firmware */
382 if (dev->descriptor.bNumConfigurations == 1) {
383 status = ti_download_firmware(tdev);
388 /* 3410 must be reset, 5052 resets itself */
389 if (tdev->td_is_3410) {
390 msleep_interruptible(100);
391 usb_reset_device(dev);
398 /* the second configuration must be set */
399 if (dev->actconfig->desc.bConfigurationValue == TI_BOOT_CONFIG) {
400 status = usb_driver_set_configuration(dev, TI_ACTIVE_CONFIG);
401 status = status ? status : -ENODEV;
409 usb_set_serial_data(serial, NULL);
414 static void ti_release(struct usb_serial *serial)
416 struct ti_device *tdev = usb_get_serial_data(serial);
421 static int ti_port_probe(struct usb_serial_port *port)
423 struct ti_port *tport;
425 tport = kzalloc(sizeof(*tport), GFP_KERNEL);
429 spin_lock_init(&tport->tp_lock);
430 if (port == port->serial->port[0])
431 tport->tp_uart_base_addr = TI_UART1_BASE_ADDR;
433 tport->tp_uart_base_addr = TI_UART2_BASE_ADDR;
434 tport->tp_closing_wait = closing_wait;
435 init_waitqueue_head(&tport->tp_msr_wait);
436 init_waitqueue_head(&tport->tp_write_wait);
437 if (kfifo_alloc(&tport->write_fifo, TI_WRITE_BUF_SIZE, GFP_KERNEL)) {
441 tport->tp_port = port;
442 tport->tp_tdev = usb_get_serial_data(port->serial);
443 tport->tp_uart_mode = 0; /* default is RS232 */
445 usb_set_serial_port_data(port, tport);
450 static int ti_port_remove(struct usb_serial_port *port)
452 struct ti_port *tport;
454 tport = usb_get_serial_port_data(port);
455 kfifo_free(&tport->write_fifo);
461 static int ti_open(struct tty_struct *tty, struct usb_serial_port *port)
463 struct ti_port *tport = usb_get_serial_port_data(port);
464 struct ti_device *tdev;
465 struct usb_device *dev;
469 __u16 open_settings = (__u8)(TI_PIPE_MODE_CONTINOUS |
470 TI_PIPE_TIMEOUT_ENABLE |
471 (TI_TRANSFER_TIMEOUT << 2));
476 dev = port->serial->dev;
477 tdev = tport->tp_tdev;
479 /* only one open on any port on a device at a time */
480 if (mutex_lock_interruptible(&tdev->td_open_close_lock))
483 port_number = port->number - port->serial->minor;
485 memset(&(tport->tp_icount), 0x00, sizeof(tport->tp_icount));
488 tport->tp_shadow_mcr |= (TI_MCR_RTS | TI_MCR_DTR);
490 /* start interrupt urb the first time a port is opened on this device */
491 if (tdev->td_open_port_count == 0) {
492 dev_dbg(&port->dev, "%s - start interrupt in urb\n", __func__);
493 urb = tdev->td_serial->port[0]->interrupt_in_urb;
495 dev_err(&port->dev, "%s - no interrupt urb\n", __func__);
500 status = usb_submit_urb(urb, GFP_KERNEL);
502 dev_err(&port->dev, "%s - submit interrupt urb failed, %d\n", __func__, status);
508 ti_set_termios(tty, port, &tty->termios);
510 dev_dbg(&port->dev, "%s - sending TI_OPEN_PORT\n", __func__);
511 status = ti_command_out_sync(tdev, TI_OPEN_PORT,
512 (__u8)(TI_UART1_PORT + port_number), open_settings, NULL, 0);
514 dev_err(&port->dev, "%s - cannot send open command, %d\n",
519 dev_dbg(&port->dev, "%s - sending TI_START_PORT\n", __func__);
520 status = ti_command_out_sync(tdev, TI_START_PORT,
521 (__u8)(TI_UART1_PORT + port_number), 0, NULL, 0);
523 dev_err(&port->dev, "%s - cannot send start command, %d\n",
528 dev_dbg(&port->dev, "%s - sending TI_PURGE_PORT\n", __func__);
529 status = ti_command_out_sync(tdev, TI_PURGE_PORT,
530 (__u8)(TI_UART1_PORT + port_number), TI_PURGE_INPUT, NULL, 0);
532 dev_err(&port->dev, "%s - cannot clear input buffers, %d\n",
536 status = ti_command_out_sync(tdev, TI_PURGE_PORT,
537 (__u8)(TI_UART1_PORT + port_number), TI_PURGE_OUTPUT, NULL, 0);
539 dev_err(&port->dev, "%s - cannot clear output buffers, %d\n",
544 /* reset the data toggle on the bulk endpoints to work around bug in
545 * host controllers where things get out of sync some times */
546 usb_clear_halt(dev, port->write_urb->pipe);
547 usb_clear_halt(dev, port->read_urb->pipe);
550 ti_set_termios(tty, port, &tty->termios);
552 dev_dbg(&port->dev, "%s - sending TI_OPEN_PORT (2)\n", __func__);
553 status = ti_command_out_sync(tdev, TI_OPEN_PORT,
554 (__u8)(TI_UART1_PORT + port_number), open_settings, NULL, 0);
556 dev_err(&port->dev, "%s - cannot send open command (2), %d\n",
561 dev_dbg(&port->dev, "%s - sending TI_START_PORT (2)\n", __func__);
562 status = ti_command_out_sync(tdev, TI_START_PORT,
563 (__u8)(TI_UART1_PORT + port_number), 0, NULL, 0);
565 dev_err(&port->dev, "%s - cannot send start command (2), %d\n",
571 dev_dbg(&port->dev, "%s - start read urb\n", __func__);
572 urb = port->read_urb;
574 dev_err(&port->dev, "%s - no read urb\n", __func__);
578 tport->tp_read_urb_state = TI_READ_URB_RUNNING;
579 urb->context = tport;
580 status = usb_submit_urb(urb, GFP_KERNEL);
582 dev_err(&port->dev, "%s - submit read urb failed, %d\n",
587 tport->tp_is_open = 1;
588 ++tdev->td_open_port_count;
593 if (tdev->td_open_port_count == 0)
594 usb_kill_urb(port->serial->port[0]->interrupt_in_urb);
596 mutex_unlock(&tdev->td_open_close_lock);
597 dev_dbg(&port->dev, "%s - exit %d\n", __func__, status);
602 static void ti_close(struct usb_serial_port *port)
604 struct ti_device *tdev;
605 struct ti_port *tport;
610 tdev = usb_get_serial_data(port->serial);
611 tport = usb_get_serial_port_data(port);
612 if (tdev == NULL || tport == NULL)
615 tport->tp_is_open = 0;
617 ti_drain(tport, (tport->tp_closing_wait*HZ)/100, 1);
619 usb_kill_urb(port->read_urb);
620 usb_kill_urb(port->write_urb);
621 tport->tp_write_urb_in_use = 0;
623 port_number = port->number - port->serial->minor;
625 dev_dbg(&port->dev, "%s - sending TI_CLOSE_PORT\n", __func__);
626 status = ti_command_out_sync(tdev, TI_CLOSE_PORT,
627 (__u8)(TI_UART1_PORT + port_number), 0, NULL, 0);
630 "%s - cannot send close port command, %d\n"
633 /* if mutex_lock is interrupted, continue anyway */
634 do_unlock = !mutex_lock_interruptible(&tdev->td_open_close_lock);
635 --tport->tp_tdev->td_open_port_count;
636 if (tport->tp_tdev->td_open_port_count <= 0) {
637 /* last port is closed, shut down interrupt urb */
638 usb_kill_urb(port->serial->port[0]->interrupt_in_urb);
639 tport->tp_tdev->td_open_port_count = 0;
642 mutex_unlock(&tdev->td_open_close_lock);
646 static int ti_write(struct tty_struct *tty, struct usb_serial_port *port,
647 const unsigned char *data, int count)
649 struct ti_port *tport = usb_get_serial_port_data(port);
652 dev_dbg(&port->dev, "%s - write request of 0 bytes\n", __func__);
656 if (tport == NULL || !tport->tp_is_open)
659 count = kfifo_in_locked(&tport->write_fifo, data, count,
667 static int ti_write_room(struct tty_struct *tty)
669 struct usb_serial_port *port = tty->driver_data;
670 struct ti_port *tport = usb_get_serial_port_data(port);
677 spin_lock_irqsave(&tport->tp_lock, flags);
678 room = kfifo_avail(&tport->write_fifo);
679 spin_unlock_irqrestore(&tport->tp_lock, flags);
681 dev_dbg(&port->dev, "%s - returns %d\n", __func__, room);
686 static int ti_chars_in_buffer(struct tty_struct *tty)
688 struct usb_serial_port *port = tty->driver_data;
689 struct ti_port *tport = usb_get_serial_port_data(port);
696 spin_lock_irqsave(&tport->tp_lock, flags);
697 chars = kfifo_len(&tport->write_fifo);
698 spin_unlock_irqrestore(&tport->tp_lock, flags);
700 dev_dbg(&port->dev, "%s - returns %d\n", __func__, chars);
705 static void ti_throttle(struct tty_struct *tty)
707 struct usb_serial_port *port = tty->driver_data;
708 struct ti_port *tport = usb_get_serial_port_data(port);
713 if (I_IXOFF(tty) || C_CRTSCTS(tty))
714 ti_stop_read(tport, tty);
719 static void ti_unthrottle(struct tty_struct *tty)
721 struct usb_serial_port *port = tty->driver_data;
722 struct ti_port *tport = usb_get_serial_port_data(port);
728 if (I_IXOFF(tty) || C_CRTSCTS(tty)) {
729 status = ti_restart_read(tport, tty);
731 dev_err(&port->dev, "%s - cannot restart read, %d\n",
736 static int ti_get_icount(struct tty_struct *tty,
737 struct serial_icounter_struct *icount)
739 struct usb_serial_port *port = tty->driver_data;
740 struct ti_port *tport = usb_get_serial_port_data(port);
741 struct async_icount cnow = tport->tp_icount;
743 dev_dbg(&port->dev, "%s - TIOCGICOUNT RX=%d, TX=%d\n", __func__,
746 icount->cts = cnow.cts;
747 icount->dsr = cnow.dsr;
748 icount->rng = cnow.rng;
749 icount->dcd = cnow.dcd;
750 icount->rx = cnow.rx;
751 icount->tx = cnow.tx;
752 icount->frame = cnow.frame;
753 icount->overrun = cnow.overrun;
754 icount->parity = cnow.parity;
755 icount->brk = cnow.brk;
756 icount->buf_overrun = cnow.buf_overrun;
761 static int ti_ioctl(struct tty_struct *tty,
762 unsigned int cmd, unsigned long arg)
764 struct usb_serial_port *port = tty->driver_data;
765 struct ti_port *tport = usb_get_serial_port_data(port);
766 struct async_icount cnow;
767 struct async_icount cprev;
769 dev_dbg(&port->dev, "%s - cmd = 0x%04X\n", __func__, cmd);
776 dev_dbg(&port->dev, "%s - TIOCGSERIAL\n", __func__);
777 return ti_get_serial_info(tport,
778 (struct serial_struct __user *)arg);
780 dev_dbg(&port->dev, "%s - TIOCSSERIAL\n", __func__);
781 return ti_set_serial_info(tty, tport,
782 (struct serial_struct __user *)arg);
784 dev_dbg(&port->dev, "%s - TIOCMIWAIT\n", __func__);
785 cprev = tport->tp_icount;
787 interruptible_sleep_on(&tport->tp_msr_wait);
788 if (signal_pending(current))
790 cnow = tport->tp_icount;
791 if (cnow.rng == cprev.rng && cnow.dsr == cprev.dsr &&
792 cnow.dcd == cprev.dcd && cnow.cts == cprev.cts)
793 return -EIO; /* no change => error */
794 if (((arg & TIOCM_RNG) && (cnow.rng != cprev.rng)) ||
795 ((arg & TIOCM_DSR) && (cnow.dsr != cprev.dsr)) ||
796 ((arg & TIOCM_CD) && (cnow.dcd != cprev.dcd)) ||
797 ((arg & TIOCM_CTS) && (cnow.cts != cprev.cts)))
807 static void ti_set_termios(struct tty_struct *tty,
808 struct usb_serial_port *port, struct ktermios *old_termios)
810 struct ti_port *tport = usb_get_serial_port_data(port);
811 struct ti_uart_config *config;
812 tcflag_t cflag, iflag;
815 int port_number = port->number - port->serial->minor;
818 cflag = tty->termios.c_cflag;
819 iflag = tty->termios.c_iflag;
821 dev_dbg(&port->dev, "%s - cflag %08x, iflag %08x\n", __func__, cflag, iflag);
822 dev_dbg(&port->dev, "%s - old clfag %08x, old iflag %08x\n", __func__,
823 old_termios->c_cflag, old_termios->c_iflag);
828 config = kmalloc(sizeof(*config), GFP_KERNEL);
830 dev_err(&port->dev, "%s - out of memory\n", __func__);
836 /* these flags must be set */
837 config->wFlags |= TI_UART_ENABLE_MS_INTS;
838 config->wFlags |= TI_UART_ENABLE_AUTO_START_DMA;
839 config->bUartMode = (__u8)(tport->tp_uart_mode);
841 switch (cflag & CSIZE) {
843 config->bDataBits = TI_UART_5_DATA_BITS;
846 config->bDataBits = TI_UART_6_DATA_BITS;
849 config->bDataBits = TI_UART_7_DATA_BITS;
853 config->bDataBits = TI_UART_8_DATA_BITS;
857 /* CMSPAR isn't supported by this driver */
858 tty->termios.c_cflag &= ~CMSPAR;
860 if (cflag & PARENB) {
861 if (cflag & PARODD) {
862 config->wFlags |= TI_UART_ENABLE_PARITY_CHECKING;
863 config->bParity = TI_UART_ODD_PARITY;
865 config->wFlags |= TI_UART_ENABLE_PARITY_CHECKING;
866 config->bParity = TI_UART_EVEN_PARITY;
869 config->wFlags &= ~TI_UART_ENABLE_PARITY_CHECKING;
870 config->bParity = TI_UART_NO_PARITY;
874 config->bStopBits = TI_UART_2_STOP_BITS;
876 config->bStopBits = TI_UART_1_STOP_BITS;
878 if (cflag & CRTSCTS) {
879 /* RTS flow control must be off to drop RTS for baud rate B0 */
880 if ((cflag & CBAUD) != B0)
881 config->wFlags |= TI_UART_ENABLE_RTS_IN;
882 config->wFlags |= TI_UART_ENABLE_CTS_OUT;
885 ti_restart_read(tport, tty);
888 if (I_IXOFF(tty) || I_IXON(tty)) {
889 config->cXon = START_CHAR(tty);
890 config->cXoff = STOP_CHAR(tty);
893 config->wFlags |= TI_UART_ENABLE_X_IN;
895 ti_restart_read(tport, tty);
898 config->wFlags |= TI_UART_ENABLE_X_OUT;
901 baud = tty_get_baud_rate(tty);
904 if (tport->tp_tdev->td_is_3410)
905 config->wBaudRate = (__u16)((923077 + baud/2) / baud);
907 config->wBaudRate = (__u16)((461538 + baud/2) / baud);
909 /* FIXME: Should calculate resulting baud here and report it back */
910 if ((cflag & CBAUD) != B0)
911 tty_encode_baud_rate(tty, baud, baud);
914 "%s - BaudRate=%d, wBaudRate=%d, wFlags=0x%04X, bDataBits=%d, bParity=%d, bStopBits=%d, cXon=%d, cXoff=%d, bUartMode=%d",
915 __func__, baud, config->wBaudRate, config->wFlags,
916 config->bDataBits, config->bParity, config->bStopBits,
917 config->cXon, config->cXoff, config->bUartMode);
919 cpu_to_be16s(&config->wBaudRate);
920 cpu_to_be16s(&config->wFlags);
922 status = ti_command_out_sync(tport->tp_tdev, TI_SET_CONFIG,
923 (__u8)(TI_UART1_PORT + port_number), 0, (__u8 *)config,
926 dev_err(&port->dev, "%s - cannot set config on port %d, %d\n",
927 __func__, port_number, status);
929 /* SET_CONFIG asserts RTS and DTR, reset them correctly */
930 mcr = tport->tp_shadow_mcr;
931 /* if baud rate is B0, clear RTS and DTR */
932 if ((cflag & CBAUD) == B0)
933 mcr &= ~(TI_MCR_DTR | TI_MCR_RTS);
934 status = ti_set_mcr(tport, mcr);
937 "%s - cannot set modem control on port %d, %d\n",
938 __func__, port_number, status);
944 static int ti_tiocmget(struct tty_struct *tty)
946 struct usb_serial_port *port = tty->driver_data;
947 struct ti_port *tport = usb_get_serial_port_data(port);
956 spin_lock_irqsave(&tport->tp_lock, flags);
958 mcr = tport->tp_shadow_mcr;
959 spin_unlock_irqrestore(&tport->tp_lock, flags);
961 result = ((mcr & TI_MCR_DTR) ? TIOCM_DTR : 0)
962 | ((mcr & TI_MCR_RTS) ? TIOCM_RTS : 0)
963 | ((mcr & TI_MCR_LOOP) ? TIOCM_LOOP : 0)
964 | ((msr & TI_MSR_CTS) ? TIOCM_CTS : 0)
965 | ((msr & TI_MSR_CD) ? TIOCM_CAR : 0)
966 | ((msr & TI_MSR_RI) ? TIOCM_RI : 0)
967 | ((msr & TI_MSR_DSR) ? TIOCM_DSR : 0);
969 dev_dbg(&port->dev, "%s - 0x%04X\n", __func__, result);
975 static int ti_tiocmset(struct tty_struct *tty,
976 unsigned int set, unsigned int clear)
978 struct usb_serial_port *port = tty->driver_data;
979 struct ti_port *tport = usb_get_serial_port_data(port);
986 spin_lock_irqsave(&tport->tp_lock, flags);
987 mcr = tport->tp_shadow_mcr;
993 if (set & TIOCM_LOOP)
996 if (clear & TIOCM_RTS)
998 if (clear & TIOCM_DTR)
1000 if (clear & TIOCM_LOOP)
1001 mcr &= ~TI_MCR_LOOP;
1002 spin_unlock_irqrestore(&tport->tp_lock, flags);
1004 return ti_set_mcr(tport, mcr);
1008 static void ti_break(struct tty_struct *tty, int break_state)
1010 struct usb_serial_port *port = tty->driver_data;
1011 struct ti_port *tport = usb_get_serial_port_data(port);
1014 dev_dbg(&port->dev, "%s - state = %d\n", __func__, break_state);
1019 ti_drain(tport, (tport->tp_closing_wait*HZ)/100, 0);
1021 status = ti_write_byte(port, tport->tp_tdev,
1022 tport->tp_uart_base_addr + TI_UART_OFFSET_LCR,
1023 TI_LCR_BREAK, break_state == -1 ? TI_LCR_BREAK : 0);
1026 dev_dbg(&port->dev, "%s - error setting break, %d\n", __func__, status);
1030 static void ti_interrupt_callback(struct urb *urb)
1032 struct ti_device *tdev = urb->context;
1033 struct usb_serial_port *port;
1034 struct usb_serial *serial = tdev->td_serial;
1035 struct ti_port *tport;
1036 struct device *dev = &urb->dev->dev;
1037 unsigned char *data = urb->transfer_buffer;
1038 int length = urb->actual_length;
1041 int status = urb->status;
1051 dev_dbg(dev, "%s - urb shutting down, %d\n", __func__, status);
1052 tdev->td_urb_error = 1;
1055 dev_err(dev, "%s - nonzero urb status, %d\n", __func__, status);
1056 tdev->td_urb_error = 1;
1061 dev_dbg(dev, "%s - bad packet size, %d\n", __func__, length);
1065 if (data[0] == TI_CODE_HARDWARE_ERROR) {
1066 dev_err(dev, "%s - hardware error, %d\n", __func__, data[1]);
1070 port_number = TI_GET_PORT_FROM_CODE(data[0]);
1071 function = TI_GET_FUNC_FROM_CODE(data[0]);
1073 dev_dbg(dev, "%s - port_number %d, function %d, data 0x%02X\n",
1074 __func__, port_number, function, data[1]);
1076 if (port_number >= serial->num_ports) {
1077 dev_err(dev, "%s - bad port number, %d\n",
1078 __func__, port_number);
1082 port = serial->port[port_number];
1084 tport = usb_get_serial_port_data(port);
1089 case TI_CODE_DATA_ERROR:
1090 dev_err(dev, "%s - DATA ERROR, port %d, data 0x%02X\n",
1091 __func__, port_number, data[1]);
1094 case TI_CODE_MODEM_STATUS:
1096 dev_dbg(dev, "%s - port %d, msr 0x%02X\n", __func__, port_number, msr);
1097 ti_handle_new_msr(tport, msr);
1101 dev_err(dev, "%s - unknown interrupt code, 0x%02X\n",
1107 retval = usb_submit_urb(urb, GFP_ATOMIC);
1109 dev_err(dev, "%s - resubmit interrupt urb failed, %d\n",
1114 static void ti_bulk_in_callback(struct urb *urb)
1116 struct ti_port *tport = urb->context;
1117 struct usb_serial_port *port = tport->tp_port;
1118 struct device *dev = &urb->dev->dev;
1119 int status = urb->status;
1128 dev_dbg(dev, "%s - urb shutting down, %d\n", __func__, status);
1129 tport->tp_tdev->td_urb_error = 1;
1130 wake_up_interruptible(&tport->tp_write_wait);
1133 dev_err(dev, "%s - nonzero urb status, %d\n",
1135 tport->tp_tdev->td_urb_error = 1;
1136 wake_up_interruptible(&tport->tp_write_wait);
1139 if (status == -EPIPE)
1143 dev_err(dev, "%s - stopping read!\n", __func__);
1147 if (urb->actual_length) {
1148 usb_serial_debug_data(dev, __func__, urb->actual_length,
1149 urb->transfer_buffer);
1151 if (!tport->tp_is_open)
1152 dev_dbg(dev, "%s - port closed, dropping data\n",
1155 ti_recv(port, urb->transfer_buffer, urb->actual_length);
1156 spin_lock(&tport->tp_lock);
1157 tport->tp_icount.rx += urb->actual_length;
1158 spin_unlock(&tport->tp_lock);
1162 /* continue to read unless stopping */
1163 spin_lock(&tport->tp_lock);
1164 if (tport->tp_read_urb_state == TI_READ_URB_RUNNING)
1165 retval = usb_submit_urb(urb, GFP_ATOMIC);
1166 else if (tport->tp_read_urb_state == TI_READ_URB_STOPPING)
1167 tport->tp_read_urb_state = TI_READ_URB_STOPPED;
1169 spin_unlock(&tport->tp_lock);
1171 dev_err(dev, "%s - resubmit read urb failed, %d\n",
1176 static void ti_bulk_out_callback(struct urb *urb)
1178 struct ti_port *tport = urb->context;
1179 struct usb_serial_port *port = tport->tp_port;
1180 int status = urb->status;
1182 tport->tp_write_urb_in_use = 0;
1190 dev_dbg(&port->dev, "%s - urb shutting down, %d\n", __func__, status);
1191 tport->tp_tdev->td_urb_error = 1;
1192 wake_up_interruptible(&tport->tp_write_wait);
1195 dev_err_console(port, "%s - nonzero urb status, %d\n",
1197 tport->tp_tdev->td_urb_error = 1;
1198 wake_up_interruptible(&tport->tp_write_wait);
1201 /* send any buffered data */
1206 static void ti_recv(struct usb_serial_port *port, unsigned char *data,
1212 cnt = tty_insert_flip_string(&port->port, data, length);
1214 dev_err(&port->dev, "%s - dropping data, %d bytes lost\n",
1215 __func__, length - cnt);
1219 tty_flip_buffer_push(&port->port);
1222 } while (length > 0);
1226 static void ti_send(struct ti_port *tport)
1229 struct usb_serial_port *port = tport->tp_port;
1230 struct tty_struct *tty = tty_port_tty_get(&port->port); /* FIXME */
1231 unsigned long flags;
1233 spin_lock_irqsave(&tport->tp_lock, flags);
1235 if (tport->tp_write_urb_in_use)
1238 count = kfifo_out(&tport->write_fifo,
1239 port->write_urb->transfer_buffer,
1240 port->bulk_out_size);
1245 tport->tp_write_urb_in_use = 1;
1247 spin_unlock_irqrestore(&tport->tp_lock, flags);
1249 usb_serial_debug_data(&port->dev, __func__, count,
1250 port->write_urb->transfer_buffer);
1252 usb_fill_bulk_urb(port->write_urb, port->serial->dev,
1253 usb_sndbulkpipe(port->serial->dev,
1254 port->bulk_out_endpointAddress),
1255 port->write_urb->transfer_buffer, count,
1256 ti_bulk_out_callback, tport);
1258 result = usb_submit_urb(port->write_urb, GFP_ATOMIC);
1260 dev_err_console(port, "%s - submit write urb failed, %d\n",
1262 tport->tp_write_urb_in_use = 0;
1263 /* TODO: reschedule ti_send */
1265 spin_lock_irqsave(&tport->tp_lock, flags);
1266 tport->tp_icount.tx += count;
1267 spin_unlock_irqrestore(&tport->tp_lock, flags);
1270 /* more room in the buffer for new writes, wakeup */
1274 wake_up_interruptible(&tport->tp_write_wait);
1277 spin_unlock_irqrestore(&tport->tp_lock, flags);
1283 static int ti_set_mcr(struct ti_port *tport, unsigned int mcr)
1285 unsigned long flags;
1288 status = ti_write_byte(tport->tp_port, tport->tp_tdev,
1289 tport->tp_uart_base_addr + TI_UART_OFFSET_MCR,
1290 TI_MCR_RTS | TI_MCR_DTR | TI_MCR_LOOP, mcr);
1292 spin_lock_irqsave(&tport->tp_lock, flags);
1294 tport->tp_shadow_mcr = mcr;
1295 spin_unlock_irqrestore(&tport->tp_lock, flags);
1301 static int ti_get_lsr(struct ti_port *tport)
1304 struct ti_device *tdev = tport->tp_tdev;
1305 struct usb_serial_port *port = tport->tp_port;
1306 int port_number = port->number - port->serial->minor;
1307 struct ti_port_status *data;
1309 size = sizeof(struct ti_port_status);
1310 data = kmalloc(size, GFP_KERNEL);
1312 dev_err(&port->dev, "%s - out of memory\n", __func__);
1316 status = ti_command_in_sync(tdev, TI_GET_PORT_STATUS,
1317 (__u8)(TI_UART1_PORT+port_number), 0, (__u8 *)data, size);
1320 "%s - get port status command failed, %d\n",
1325 dev_dbg(&port->dev, "%s - lsr 0x%02X\n", __func__, data->bLSR);
1327 tport->tp_lsr = data->bLSR;
1335 static int ti_get_serial_info(struct ti_port *tport,
1336 struct serial_struct __user *ret_arg)
1338 struct usb_serial_port *port = tport->tp_port;
1339 struct serial_struct ret_serial;
1344 memset(&ret_serial, 0, sizeof(ret_serial));
1346 ret_serial.type = PORT_16550A;
1347 ret_serial.line = port->serial->minor;
1348 ret_serial.port = port->number - port->serial->minor;
1349 ret_serial.flags = tport->tp_flags;
1350 ret_serial.xmit_fifo_size = TI_WRITE_BUF_SIZE;
1351 ret_serial.baud_base = tport->tp_tdev->td_is_3410 ? 921600 : 460800;
1352 ret_serial.closing_wait = tport->tp_closing_wait;
1354 if (copy_to_user(ret_arg, &ret_serial, sizeof(*ret_arg)))
1361 static int ti_set_serial_info(struct tty_struct *tty, struct ti_port *tport,
1362 struct serial_struct __user *new_arg)
1364 struct serial_struct new_serial;
1366 if (copy_from_user(&new_serial, new_arg, sizeof(new_serial)))
1369 tport->tp_flags = new_serial.flags & TI_SET_SERIAL_FLAGS;
1370 tport->tp_closing_wait = new_serial.closing_wait;
1376 static void ti_handle_new_msr(struct ti_port *tport, __u8 msr)
1378 struct async_icount *icount;
1379 struct tty_struct *tty;
1380 unsigned long flags;
1382 dev_dbg(&tport->tp_port->dev, "%s - msr 0x%02X\n", __func__, msr);
1384 if (msr & TI_MSR_DELTA_MASK) {
1385 spin_lock_irqsave(&tport->tp_lock, flags);
1386 icount = &tport->tp_icount;
1387 if (msr & TI_MSR_DELTA_CTS)
1389 if (msr & TI_MSR_DELTA_DSR)
1391 if (msr & TI_MSR_DELTA_CD)
1393 if (msr & TI_MSR_DELTA_RI)
1395 wake_up_interruptible(&tport->tp_msr_wait);
1396 spin_unlock_irqrestore(&tport->tp_lock, flags);
1399 tport->tp_msr = msr & TI_MSR_MASK;
1401 /* handle CTS flow control */
1402 tty = tty_port_tty_get(&tport->tp_port->port);
1403 if (tty && C_CRTSCTS(tty)) {
1404 if (msr & TI_MSR_CTS) {
1405 tty->hw_stopped = 0;
1408 tty->hw_stopped = 1;
1415 static void ti_drain(struct ti_port *tport, unsigned long timeout, int flush)
1417 struct ti_device *tdev = tport->tp_tdev;
1418 struct usb_serial_port *port = tport->tp_port;
1421 spin_lock_irq(&tport->tp_lock);
1423 /* wait for data to drain from the buffer */
1424 tdev->td_urb_error = 0;
1425 init_waitqueue_entry(&wait, current);
1426 add_wait_queue(&tport->tp_write_wait, &wait);
1428 set_current_state(TASK_INTERRUPTIBLE);
1429 if (kfifo_len(&tport->write_fifo) == 0
1430 || timeout == 0 || signal_pending(current)
1431 || tdev->td_urb_error
1432 || port->serial->disconnected) /* disconnect */
1434 spin_unlock_irq(&tport->tp_lock);
1435 timeout = schedule_timeout(timeout);
1436 spin_lock_irq(&tport->tp_lock);
1438 set_current_state(TASK_RUNNING);
1439 remove_wait_queue(&tport->tp_write_wait, &wait);
1441 /* flush any remaining data in the buffer */
1443 kfifo_reset_out(&tport->write_fifo);
1445 spin_unlock_irq(&tport->tp_lock);
1447 mutex_lock(&port->serial->disc_mutex);
1448 /* wait for data to drain from the device */
1449 /* wait for empty tx register, plus 20 ms */
1451 tport->tp_lsr &= ~TI_LSR_TX_EMPTY;
1452 while ((long)(jiffies - timeout) < 0 && !signal_pending(current)
1453 && !(tport->tp_lsr&TI_LSR_TX_EMPTY) && !tdev->td_urb_error
1454 && !port->serial->disconnected) {
1455 if (ti_get_lsr(tport))
1457 mutex_unlock(&port->serial->disc_mutex);
1458 msleep_interruptible(20);
1459 mutex_lock(&port->serial->disc_mutex);
1461 mutex_unlock(&port->serial->disc_mutex);
1465 static void ti_stop_read(struct ti_port *tport, struct tty_struct *tty)
1467 unsigned long flags;
1469 spin_lock_irqsave(&tport->tp_lock, flags);
1471 if (tport->tp_read_urb_state == TI_READ_URB_RUNNING)
1472 tport->tp_read_urb_state = TI_READ_URB_STOPPING;
1474 spin_unlock_irqrestore(&tport->tp_lock, flags);
1478 static int ti_restart_read(struct ti_port *tport, struct tty_struct *tty)
1482 unsigned long flags;
1484 spin_lock_irqsave(&tport->tp_lock, flags);
1486 if (tport->tp_read_urb_state == TI_READ_URB_STOPPED) {
1487 tport->tp_read_urb_state = TI_READ_URB_RUNNING;
1488 urb = tport->tp_port->read_urb;
1489 spin_unlock_irqrestore(&tport->tp_lock, flags);
1490 urb->context = tport;
1491 status = usb_submit_urb(urb, GFP_KERNEL);
1493 tport->tp_read_urb_state = TI_READ_URB_RUNNING;
1494 spin_unlock_irqrestore(&tport->tp_lock, flags);
1501 static int ti_command_out_sync(struct ti_device *tdev, __u8 command,
1502 __u16 moduleid, __u16 value, __u8 *data, int size)
1506 status = usb_control_msg(tdev->td_serial->dev,
1507 usb_sndctrlpipe(tdev->td_serial->dev, 0), command,
1508 (USB_TYPE_VENDOR | USB_RECIP_DEVICE | USB_DIR_OUT),
1509 value, moduleid, data, size, 1000);
1521 static int ti_command_in_sync(struct ti_device *tdev, __u8 command,
1522 __u16 moduleid, __u16 value, __u8 *data, int size)
1526 status = usb_control_msg(tdev->td_serial->dev,
1527 usb_rcvctrlpipe(tdev->td_serial->dev, 0), command,
1528 (USB_TYPE_VENDOR | USB_RECIP_DEVICE | USB_DIR_IN),
1529 value, moduleid, data, size, 1000);
1541 static int ti_write_byte(struct usb_serial_port *port,
1542 struct ti_device *tdev, unsigned long addr,
1543 __u8 mask, __u8 byte)
1547 struct ti_write_data_bytes *data;
1549 dev_dbg(&port->dev, "%s - addr 0x%08lX, mask 0x%02X, byte 0x%02X\n", __func__,
1552 size = sizeof(struct ti_write_data_bytes) + 2;
1553 data = kmalloc(size, GFP_KERNEL);
1555 dev_err(&port->dev, "%s - out of memory\n", __func__);
1559 data->bAddrType = TI_RW_DATA_ADDR_XDATA;
1560 data->bDataType = TI_RW_DATA_BYTE;
1561 data->bDataCounter = 1;
1562 data->wBaseAddrHi = cpu_to_be16(addr>>16);
1563 data->wBaseAddrLo = cpu_to_be16(addr);
1564 data->bData[0] = mask;
1565 data->bData[1] = byte;
1567 status = ti_command_out_sync(tdev, TI_WRITE_DATA, TI_RAM_PORT, 0,
1568 (__u8 *)data, size);
1571 dev_err(&port->dev, "%s - failed, %d\n", __func__, status);
1578 static int ti_do_download(struct usb_device *dev, int pipe,
1579 u8 *buffer, int size)
1584 struct ti_firmware_header *header;
1588 for (pos = sizeof(struct ti_firmware_header); pos < size; pos++)
1589 cs = (__u8)(cs + buffer[pos]);
1591 header = (struct ti_firmware_header *)buffer;
1592 header->wLength = cpu_to_le16((__u16)(size
1593 - sizeof(struct ti_firmware_header)));
1594 header->bCheckSum = cs;
1596 dev_dbg(&dev->dev, "%s - downloading firmware\n", __func__);
1597 for (pos = 0; pos < size; pos += done) {
1598 len = min(size - pos, TI_DOWNLOAD_MAX_PACKET_SIZE);
1599 status = usb_bulk_msg(dev, pipe, buffer + pos, len,
1607 static int ti_download_firmware(struct ti_device *tdev)
1612 struct usb_device *dev = tdev->td_serial->dev;
1613 unsigned int pipe = usb_sndbulkpipe(dev,
1614 tdev->td_serial->port[0]->bulk_out_endpointAddress);
1615 const struct firmware *fw_p;
1618 /* try ID specific firmware first, then try generic firmware */
1619 sprintf(buf, "ti_usb-v%04x-p%04x.fw", dev->descriptor.idVendor,
1620 dev->descriptor.idProduct);
1621 status = request_firmware(&fw_p, buf, &dev->dev);
1625 if (dev->descriptor.idVendor == MTS_VENDOR_ID) {
1626 switch (dev->descriptor.idProduct) {
1627 case MTS_CDMA_PRODUCT_ID:
1628 strcpy(buf, "mts_cdma.fw");
1630 case MTS_GSM_PRODUCT_ID:
1631 strcpy(buf, "mts_gsm.fw");
1633 case MTS_EDGE_PRODUCT_ID:
1634 strcpy(buf, "mts_edge.fw");
1636 case MTS_MT9234MU_PRODUCT_ID:
1637 strcpy(buf, "mts_mt9234mu.fw");
1639 case MTS_MT9234ZBA_PRODUCT_ID:
1640 strcpy(buf, "mts_mt9234zba.fw");
1642 case MTS_MT9234ZBAOLD_PRODUCT_ID:
1643 strcpy(buf, "mts_mt9234zba.fw");
1646 if (buf[0] == '\0') {
1647 if (tdev->td_is_3410)
1648 strcpy(buf, "ti_3410.fw");
1650 strcpy(buf, "ti_5052.fw");
1652 status = request_firmware(&fw_p, buf, &dev->dev);
1655 dev_err(&dev->dev, "%s - firmware not found\n", __func__);
1658 if (fw_p->size > TI_FIRMWARE_BUF_SIZE) {
1659 dev_err(&dev->dev, "%s - firmware too large %zu\n", __func__, fw_p->size);
1660 release_firmware(fw_p);
1664 buffer_size = TI_FIRMWARE_BUF_SIZE + sizeof(struct ti_firmware_header);
1665 buffer = kmalloc(buffer_size, GFP_KERNEL);
1667 memcpy(buffer, fw_p->data, fw_p->size);
1668 memset(buffer + fw_p->size, 0xff, buffer_size - fw_p->size);
1669 status = ti_do_download(dev, pipe, buffer, fw_p->size);
1672 dev_dbg(&dev->dev, "%s ENOMEM\n", __func__);
1675 release_firmware(fw_p);
1677 dev_err(&dev->dev, "%s - error downloading firmware, %d\n",
1682 dev_dbg(&dev->dev, "%s - download successful\n", __func__);