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_VERSION "v0.10"
44 #define TI_DRIVER_AUTHOR "Al Borchers <alborchers@steinerpoint.com>"
45 #define TI_DRIVER_DESC "TI USB 3410/5052 Serial Driver"
47 #define TI_FIRMWARE_BUF_SIZE 16284
49 #define TI_WRITE_BUF_SIZE 1024
51 #define TI_TRANSFER_TIMEOUT 2
53 #define TI_DEFAULT_CLOSING_WAIT 4000 /* in .01 secs */
55 /* supported setserial flags */
56 #define TI_SET_SERIAL_FLAGS 0
59 #define TI_READ_URB_RUNNING 0
60 #define TI_READ_URB_STOPPING 1
61 #define TI_READ_URB_STOPPED 2
63 #define TI_EXTRA_VID_PID_COUNT 5
73 __u8 tp_uart_mode; /* 232 or 485 modes */
74 unsigned int tp_uart_base_addr;
76 int tp_closing_wait;/* in .01 secs */
77 struct async_icount tp_icount;
78 wait_queue_head_t tp_msr_wait; /* wait for msr change */
79 wait_queue_head_t tp_write_wait;
80 struct ti_device *tp_tdev;
81 struct usb_serial_port *tp_port;
83 int tp_read_urb_state;
84 int tp_write_urb_in_use;
85 struct kfifo write_fifo;
89 struct mutex td_open_close_lock;
90 int td_open_port_count;
91 struct usb_serial *td_serial;
97 /* Function Declarations */
99 static int ti_startup(struct usb_serial *serial);
100 static void ti_release(struct usb_serial *serial);
101 static int ti_open(struct tty_struct *tty, struct usb_serial_port *port);
102 static void ti_close(struct usb_serial_port *port);
103 static int ti_write(struct tty_struct *tty, struct usb_serial_port *port,
104 const unsigned char *data, int count);
105 static int ti_write_room(struct tty_struct *tty);
106 static int ti_chars_in_buffer(struct tty_struct *tty);
107 static void ti_throttle(struct tty_struct *tty);
108 static void ti_unthrottle(struct tty_struct *tty);
109 static int ti_ioctl(struct tty_struct *tty,
110 unsigned int cmd, unsigned long arg);
111 static int ti_get_icount(struct tty_struct *tty,
112 struct serial_icounter_struct *icount);
113 static void ti_set_termios(struct tty_struct *tty,
114 struct usb_serial_port *port, struct ktermios *old_termios);
115 static int ti_tiocmget(struct tty_struct *tty);
116 static int ti_tiocmset(struct tty_struct *tty,
117 unsigned int set, unsigned int clear);
118 static void ti_break(struct tty_struct *tty, int break_state);
119 static void ti_interrupt_callback(struct urb *urb);
120 static void ti_bulk_in_callback(struct urb *urb);
121 static void ti_bulk_out_callback(struct urb *urb);
123 static void ti_recv(struct device *dev, struct tty_struct *tty,
124 unsigned char *data, int length);
125 static void ti_send(struct ti_port *tport);
126 static int ti_set_mcr(struct ti_port *tport, unsigned int mcr);
127 static int ti_get_lsr(struct ti_port *tport);
128 static int ti_get_serial_info(struct ti_port *tport,
129 struct serial_struct __user *ret_arg);
130 static int ti_set_serial_info(struct tty_struct *tty, struct ti_port *tport,
131 struct serial_struct __user *new_arg);
132 static void ti_handle_new_msr(struct ti_port *tport, __u8 msr);
134 static void ti_drain(struct ti_port *tport, unsigned long timeout, int flush);
136 static void ti_stop_read(struct ti_port *tport, struct tty_struct *tty);
137 static int ti_restart_read(struct ti_port *tport, struct tty_struct *tty);
139 static int ti_command_out_sync(struct ti_device *tdev, __u8 command,
140 __u16 moduleid, __u16 value, __u8 *data, int size);
141 static int ti_command_in_sync(struct ti_device *tdev, __u8 command,
142 __u16 moduleid, __u16 value, __u8 *data, int size);
144 static int ti_write_byte(struct ti_device *tdev, unsigned long addr,
145 __u8 mask, __u8 byte);
147 static int ti_download_firmware(struct ti_device *tdev);
152 /* 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[14+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) },
185 static struct usb_device_id ti_id_table_5052[5+TI_EXTRA_VID_PID_COUNT+1] = {
186 { USB_DEVICE(TI_VENDOR_ID, TI_5052_BOOT_PRODUCT_ID) },
187 { USB_DEVICE(TI_VENDOR_ID, TI_5152_BOOT_PRODUCT_ID) },
188 { USB_DEVICE(TI_VENDOR_ID, TI_5052_EEPROM_PRODUCT_ID) },
189 { USB_DEVICE(TI_VENDOR_ID, TI_5052_FIRMWARE_PRODUCT_ID) },
192 static struct usb_device_id ti_id_table_combined[18+2*TI_EXTRA_VID_PID_COUNT+1] = {
193 { USB_DEVICE(TI_VENDOR_ID, TI_3410_PRODUCT_ID) },
194 { USB_DEVICE(TI_VENDOR_ID, TI_3410_EZ430_ID) },
195 { USB_DEVICE(MTS_VENDOR_ID, MTS_GSM_NO_FW_PRODUCT_ID) },
196 { USB_DEVICE(MTS_VENDOR_ID, MTS_CDMA_NO_FW_PRODUCT_ID) },
197 { USB_DEVICE(MTS_VENDOR_ID, MTS_CDMA_PRODUCT_ID) },
198 { USB_DEVICE(MTS_VENDOR_ID, MTS_GSM_PRODUCT_ID) },
199 { USB_DEVICE(MTS_VENDOR_ID, MTS_EDGE_PRODUCT_ID) },
200 { USB_DEVICE(MTS_VENDOR_ID, MTS_MT9234MU_PRODUCT_ID) },
201 { USB_DEVICE(MTS_VENDOR_ID, MTS_MT9234ZBA_PRODUCT_ID) },
202 { USB_DEVICE(MTS_VENDOR_ID, MTS_MT9234ZBAOLD_PRODUCT_ID) },
203 { USB_DEVICE(TI_VENDOR_ID, TI_5052_BOOT_PRODUCT_ID) },
204 { USB_DEVICE(TI_VENDOR_ID, TI_5152_BOOT_PRODUCT_ID) },
205 { USB_DEVICE(TI_VENDOR_ID, TI_5052_EEPROM_PRODUCT_ID) },
206 { USB_DEVICE(TI_VENDOR_ID, TI_5052_FIRMWARE_PRODUCT_ID) },
207 { USB_DEVICE(IBM_VENDOR_ID, IBM_4543_PRODUCT_ID) },
208 { USB_DEVICE(IBM_VENDOR_ID, IBM_454B_PRODUCT_ID) },
209 { USB_DEVICE(IBM_VENDOR_ID, IBM_454C_PRODUCT_ID) },
210 { USB_DEVICE(ABBOTT_VENDOR_ID, ABBOTT_PRODUCT_ID) },
214 static struct usb_serial_driver ti_1port_device = {
216 .owner = THIS_MODULE,
217 .name = "ti_usb_3410_5052_1",
219 .description = "TI USB 3410 1 port adapter",
220 .id_table = ti_id_table_3410,
222 .attach = ti_startup,
223 .release = ti_release,
227 .write_room = ti_write_room,
228 .chars_in_buffer = ti_chars_in_buffer,
229 .throttle = ti_throttle,
230 .unthrottle = ti_unthrottle,
232 .set_termios = ti_set_termios,
233 .tiocmget = ti_tiocmget,
234 .tiocmset = ti_tiocmset,
235 .get_icount = ti_get_icount,
236 .break_ctl = ti_break,
237 .read_int_callback = ti_interrupt_callback,
238 .read_bulk_callback = ti_bulk_in_callback,
239 .write_bulk_callback = ti_bulk_out_callback,
242 static struct usb_serial_driver ti_2port_device = {
244 .owner = THIS_MODULE,
245 .name = "ti_usb_3410_5052_2",
247 .description = "TI USB 5052 2 port adapter",
248 .id_table = ti_id_table_5052,
250 .attach = ti_startup,
251 .release = ti_release,
255 .write_room = ti_write_room,
256 .chars_in_buffer = ti_chars_in_buffer,
257 .throttle = ti_throttle,
258 .unthrottle = ti_unthrottle,
260 .set_termios = ti_set_termios,
261 .tiocmget = ti_tiocmget,
262 .tiocmset = ti_tiocmset,
263 .get_icount = ti_get_icount,
264 .break_ctl = ti_break,
265 .read_int_callback = ti_interrupt_callback,
266 .read_bulk_callback = ti_bulk_in_callback,
267 .write_bulk_callback = ti_bulk_out_callback,
270 static struct usb_serial_driver * const serial_drivers[] = {
271 &ti_1port_device, &ti_2port_device, NULL
276 MODULE_AUTHOR(TI_DRIVER_AUTHOR);
277 MODULE_DESCRIPTION(TI_DRIVER_DESC);
278 MODULE_VERSION(TI_DRIVER_VERSION);
279 MODULE_LICENSE("GPL");
281 MODULE_FIRMWARE("ti_3410.fw");
282 MODULE_FIRMWARE("ti_5052.fw");
283 MODULE_FIRMWARE("mts_cdma.fw");
284 MODULE_FIRMWARE("mts_gsm.fw");
285 MODULE_FIRMWARE("mts_edge.fw");
286 MODULE_FIRMWARE("mts_mt9234mu.fw");
287 MODULE_FIRMWARE("mts_mt9234zba.fw");
289 module_param(debug, bool, S_IRUGO | S_IWUSR);
290 MODULE_PARM_DESC(debug, "Enable debugging, 0=no, 1=yes");
292 module_param(closing_wait, int, S_IRUGO | S_IWUSR);
293 MODULE_PARM_DESC(closing_wait,
294 "Maximum wait for data to drain in close, in .01 secs, default is 4000");
296 module_param_array(vendor_3410, ushort, &vendor_3410_count, S_IRUGO);
297 MODULE_PARM_DESC(vendor_3410,
298 "Vendor ids for 3410 based devices, 1-5 short integers");
299 module_param_array(product_3410, ushort, &product_3410_count, S_IRUGO);
300 MODULE_PARM_DESC(product_3410,
301 "Product ids for 3410 based devices, 1-5 short integers");
302 module_param_array(vendor_5052, ushort, &vendor_5052_count, S_IRUGO);
303 MODULE_PARM_DESC(vendor_5052,
304 "Vendor ids for 5052 based devices, 1-5 short integers");
305 module_param_array(product_5052, ushort, &product_5052_count, S_IRUGO);
306 MODULE_PARM_DESC(product_5052,
307 "Product ids for 5052 based devices, 1-5 short integers");
309 MODULE_DEVICE_TABLE(usb, ti_id_table_combined);
314 static int __init ti_init(void)
319 /* insert extra vendor and product ids */
320 c = ARRAY_SIZE(ti_id_table_combined) - 2 * TI_EXTRA_VID_PID_COUNT - 1;
321 j = ARRAY_SIZE(ti_id_table_3410) - TI_EXTRA_VID_PID_COUNT - 1;
322 for (i = 0; i < min(vendor_3410_count, product_3410_count); i++, j++, c++) {
323 ti_id_table_3410[j].idVendor = vendor_3410[i];
324 ti_id_table_3410[j].idProduct = product_3410[i];
325 ti_id_table_3410[j].match_flags = USB_DEVICE_ID_MATCH_DEVICE;
326 ti_id_table_combined[c].idVendor = vendor_3410[i];
327 ti_id_table_combined[c].idProduct = product_3410[i];
328 ti_id_table_combined[c].match_flags = USB_DEVICE_ID_MATCH_DEVICE;
330 j = ARRAY_SIZE(ti_id_table_5052) - TI_EXTRA_VID_PID_COUNT - 1;
331 for (i = 0; i < min(vendor_5052_count, product_5052_count); i++, j++, c++) {
332 ti_id_table_5052[j].idVendor = vendor_5052[i];
333 ti_id_table_5052[j].idProduct = product_5052[i];
334 ti_id_table_5052[j].match_flags = USB_DEVICE_ID_MATCH_DEVICE;
335 ti_id_table_combined[c].idVendor = vendor_5052[i];
336 ti_id_table_combined[c].idProduct = product_5052[i];
337 ti_id_table_combined[c].match_flags = USB_DEVICE_ID_MATCH_DEVICE;
340 ret = usb_serial_register_drivers(serial_drivers, KBUILD_MODNAME, ti_id_table_combined);
342 printk(KERN_INFO KBUILD_MODNAME ": " TI_DRIVER_VERSION ":"
343 TI_DRIVER_DESC "\n");
347 static void __exit ti_exit(void)
349 usb_serial_deregister_drivers(serial_drivers);
352 module_init(ti_init);
353 module_exit(ti_exit);
356 static int ti_startup(struct usb_serial *serial)
358 struct ti_device *tdev;
359 struct ti_port *tport;
360 struct usb_device *dev = serial->dev;
365 dbg("%s - product 0x%4X, num configurations %d, configuration value %d",
366 __func__, le16_to_cpu(dev->descriptor.idProduct),
367 dev->descriptor.bNumConfigurations,
368 dev->actconfig->desc.bConfigurationValue);
370 /* create device structure */
371 tdev = kzalloc(sizeof(struct ti_device), GFP_KERNEL);
373 dev_err(&dev->dev, "%s - out of memory\n", __func__);
376 mutex_init(&tdev->td_open_close_lock);
377 tdev->td_serial = serial;
378 usb_set_serial_data(serial, tdev);
380 /* determine device type */
381 if (usb_match_id(serial->interface, ti_id_table_3410))
382 tdev->td_is_3410 = 1;
383 dbg("%s - device type is %s", __func__,
384 tdev->td_is_3410 ? "3410" : "5052");
386 /* if we have only 1 configuration, download firmware */
387 if (dev->descriptor.bNumConfigurations == 1) {
388 status = ti_download_firmware(tdev);
393 /* 3410 must be reset, 5052 resets itself */
394 if (tdev->td_is_3410) {
395 msleep_interruptible(100);
396 usb_reset_device(dev);
403 /* the second configuration must be set */
404 if (dev->actconfig->desc.bConfigurationValue == TI_BOOT_CONFIG) {
405 status = usb_driver_set_configuration(dev, TI_ACTIVE_CONFIG);
406 status = status ? status : -ENODEV;
410 /* set up port structures */
411 for (i = 0; i < serial->num_ports; ++i) {
412 tport = kzalloc(sizeof(struct ti_port), GFP_KERNEL);
414 dev_err(&dev->dev, "%s - out of memory\n", __func__);
418 spin_lock_init(&tport->tp_lock);
419 tport->tp_uart_base_addr = (i == 0 ?
420 TI_UART1_BASE_ADDR : TI_UART2_BASE_ADDR);
421 tport->tp_closing_wait = closing_wait;
422 init_waitqueue_head(&tport->tp_msr_wait);
423 init_waitqueue_head(&tport->tp_write_wait);
424 if (kfifo_alloc(&tport->write_fifo, TI_WRITE_BUF_SIZE,
426 dev_err(&dev->dev, "%s - out of memory\n", __func__);
431 tport->tp_port = serial->port[i];
432 tport->tp_tdev = tdev;
433 usb_set_serial_port_data(serial->port[i], tport);
434 tport->tp_uart_mode = 0; /* default is RS232 */
440 for (--i; i >= 0; --i) {
441 tport = usb_get_serial_port_data(serial->port[i]);
442 kfifo_free(&tport->write_fifo);
444 usb_set_serial_port_data(serial->port[i], NULL);
448 usb_set_serial_data(serial, NULL);
453 static void ti_release(struct usb_serial *serial)
456 struct ti_device *tdev = usb_get_serial_data(serial);
457 struct ti_port *tport;
459 for (i = 0; i < serial->num_ports; ++i) {
460 tport = usb_get_serial_port_data(serial->port[i]);
462 kfifo_free(&tport->write_fifo);
471 static int ti_open(struct tty_struct *tty, struct usb_serial_port *port)
473 struct ti_port *tport = usb_get_serial_port_data(port);
474 struct ti_device *tdev;
475 struct usb_device *dev;
479 __u16 open_settings = (__u8)(TI_PIPE_MODE_CONTINOUS |
480 TI_PIPE_TIMEOUT_ENABLE |
481 (TI_TRANSFER_TIMEOUT << 2));
486 dev = port->serial->dev;
487 tdev = tport->tp_tdev;
489 /* only one open on any port on a device at a time */
490 if (mutex_lock_interruptible(&tdev->td_open_close_lock))
493 port_number = port->number - port->serial->minor;
495 memset(&(tport->tp_icount), 0x00, sizeof(tport->tp_icount));
498 tport->tp_shadow_mcr |= (TI_MCR_RTS | TI_MCR_DTR);
500 /* start interrupt urb the first time a port is opened on this device */
501 if (tdev->td_open_port_count == 0) {
502 dbg("%s - start interrupt in urb", __func__);
503 urb = tdev->td_serial->port[0]->interrupt_in_urb;
505 dev_err(&port->dev, "%s - no interrupt urb\n",
511 status = usb_submit_urb(urb, GFP_KERNEL);
514 "%s - submit interrupt urb failed, %d\n",
521 ti_set_termios(tty, port, tty->termios);
523 dbg("%s - sending TI_OPEN_PORT", __func__);
524 status = ti_command_out_sync(tdev, TI_OPEN_PORT,
525 (__u8)(TI_UART1_PORT + port_number), open_settings, NULL, 0);
527 dev_err(&port->dev, "%s - cannot send open command, %d\n",
532 dbg("%s - sending TI_START_PORT", __func__);
533 status = ti_command_out_sync(tdev, TI_START_PORT,
534 (__u8)(TI_UART1_PORT + port_number), 0, NULL, 0);
536 dev_err(&port->dev, "%s - cannot send start command, %d\n",
541 dbg("%s - sending TI_PURGE_PORT", __func__);
542 status = ti_command_out_sync(tdev, TI_PURGE_PORT,
543 (__u8)(TI_UART1_PORT + port_number), TI_PURGE_INPUT, NULL, 0);
545 dev_err(&port->dev, "%s - cannot clear input buffers, %d\n",
549 status = ti_command_out_sync(tdev, TI_PURGE_PORT,
550 (__u8)(TI_UART1_PORT + port_number), TI_PURGE_OUTPUT, NULL, 0);
552 dev_err(&port->dev, "%s - cannot clear output buffers, %d\n",
557 /* reset the data toggle on the bulk endpoints to work around bug in
558 * host controllers where things get out of sync some times */
559 usb_clear_halt(dev, port->write_urb->pipe);
560 usb_clear_halt(dev, port->read_urb->pipe);
563 ti_set_termios(tty, port, tty->termios);
565 dbg("%s - sending TI_OPEN_PORT (2)", __func__);
566 status = ti_command_out_sync(tdev, TI_OPEN_PORT,
567 (__u8)(TI_UART1_PORT + port_number), open_settings, NULL, 0);
569 dev_err(&port->dev, "%s - cannot send open command (2), %d\n",
574 dbg("%s - sending TI_START_PORT (2)", __func__);
575 status = ti_command_out_sync(tdev, TI_START_PORT,
576 (__u8)(TI_UART1_PORT + port_number), 0, NULL, 0);
578 dev_err(&port->dev, "%s - cannot send start command (2), %d\n",
584 dbg("%s - start read urb", __func__);
585 urb = port->read_urb;
587 dev_err(&port->dev, "%s - no read urb\n", __func__);
591 tport->tp_read_urb_state = TI_READ_URB_RUNNING;
592 urb->context = tport;
593 status = usb_submit_urb(urb, GFP_KERNEL);
595 dev_err(&port->dev, "%s - submit read urb failed, %d\n",
600 tport->tp_is_open = 1;
601 ++tdev->td_open_port_count;
606 if (tdev->td_open_port_count == 0)
607 usb_kill_urb(port->serial->port[0]->interrupt_in_urb);
609 mutex_unlock(&tdev->td_open_close_lock);
610 dbg("%s - exit %d", __func__, status);
615 static void ti_close(struct usb_serial_port *port)
617 struct ti_device *tdev;
618 struct ti_port *tport;
623 tdev = usb_get_serial_data(port->serial);
624 tport = usb_get_serial_port_data(port);
625 if (tdev == NULL || tport == NULL)
628 tport->tp_is_open = 0;
630 ti_drain(tport, (tport->tp_closing_wait*HZ)/100, 1);
632 usb_kill_urb(port->read_urb);
633 usb_kill_urb(port->write_urb);
634 tport->tp_write_urb_in_use = 0;
636 port_number = port->number - port->serial->minor;
638 dbg("%s - sending TI_CLOSE_PORT", __func__);
639 status = ti_command_out_sync(tdev, TI_CLOSE_PORT,
640 (__u8)(TI_UART1_PORT + port_number), 0, NULL, 0);
643 "%s - cannot send close port command, %d\n"
646 /* if mutex_lock is interrupted, continue anyway */
647 do_unlock = !mutex_lock_interruptible(&tdev->td_open_close_lock);
648 --tport->tp_tdev->td_open_port_count;
649 if (tport->tp_tdev->td_open_port_count <= 0) {
650 /* last port is closed, shut down interrupt urb */
651 usb_kill_urb(port->serial->port[0]->interrupt_in_urb);
652 tport->tp_tdev->td_open_port_count = 0;
655 mutex_unlock(&tdev->td_open_close_lock);
659 static int ti_write(struct tty_struct *tty, struct usb_serial_port *port,
660 const unsigned char *data, int count)
662 struct ti_port *tport = usb_get_serial_port_data(port);
665 dbg("%s - write request of 0 bytes", __func__);
669 if (tport == NULL || !tport->tp_is_open)
672 count = kfifo_in_locked(&tport->write_fifo, data, count,
680 static int ti_write_room(struct tty_struct *tty)
682 struct usb_serial_port *port = tty->driver_data;
683 struct ti_port *tport = usb_get_serial_port_data(port);
690 spin_lock_irqsave(&tport->tp_lock, flags);
691 room = kfifo_avail(&tport->write_fifo);
692 spin_unlock_irqrestore(&tport->tp_lock, flags);
694 dbg("%s - returns %d", __func__, room);
699 static int ti_chars_in_buffer(struct tty_struct *tty)
701 struct usb_serial_port *port = tty->driver_data;
702 struct ti_port *tport = usb_get_serial_port_data(port);
709 spin_lock_irqsave(&tport->tp_lock, flags);
710 chars = kfifo_len(&tport->write_fifo);
711 spin_unlock_irqrestore(&tport->tp_lock, flags);
713 dbg("%s - returns %d", __func__, chars);
718 static void ti_throttle(struct tty_struct *tty)
720 struct usb_serial_port *port = tty->driver_data;
721 struct ti_port *tport = usb_get_serial_port_data(port);
726 if (I_IXOFF(tty) || C_CRTSCTS(tty))
727 ti_stop_read(tport, tty);
732 static void ti_unthrottle(struct tty_struct *tty)
734 struct usb_serial_port *port = tty->driver_data;
735 struct ti_port *tport = usb_get_serial_port_data(port);
741 if (I_IXOFF(tty) || C_CRTSCTS(tty)) {
742 status = ti_restart_read(tport, tty);
744 dev_err(&port->dev, "%s - cannot restart read, %d\n",
749 static int ti_get_icount(struct tty_struct *tty,
750 struct serial_icounter_struct *icount)
752 struct usb_serial_port *port = tty->driver_data;
753 struct ti_port *tport = usb_get_serial_port_data(port);
754 struct async_icount cnow = tport->tp_icount;
756 dbg("%s - (%d) TIOCGICOUNT RX=%d, TX=%d",
757 __func__, port->number,
760 icount->cts = cnow.cts;
761 icount->dsr = cnow.dsr;
762 icount->rng = cnow.rng;
763 icount->dcd = cnow.dcd;
764 icount->rx = cnow.rx;
765 icount->tx = cnow.tx;
766 icount->frame = cnow.frame;
767 icount->overrun = cnow.overrun;
768 icount->parity = cnow.parity;
769 icount->brk = cnow.brk;
770 icount->buf_overrun = cnow.buf_overrun;
775 static int ti_ioctl(struct tty_struct *tty,
776 unsigned int cmd, unsigned long arg)
778 struct usb_serial_port *port = tty->driver_data;
779 struct ti_port *tport = usb_get_serial_port_data(port);
780 struct async_icount cnow;
781 struct async_icount cprev;
783 dbg("%s - port %d, cmd = 0x%04X", __func__, port->number, cmd);
790 dbg("%s - (%d) TIOCGSERIAL", __func__, port->number);
791 return ti_get_serial_info(tport,
792 (struct serial_struct __user *)arg);
794 dbg("%s - (%d) TIOCSSERIAL", __func__, port->number);
795 return ti_set_serial_info(tty, tport,
796 (struct serial_struct __user *)arg);
798 dbg("%s - (%d) TIOCMIWAIT", __func__, port->number);
799 cprev = tport->tp_icount;
801 interruptible_sleep_on(&tport->tp_msr_wait);
802 if (signal_pending(current))
804 cnow = tport->tp_icount;
805 if (cnow.rng == cprev.rng && cnow.dsr == cprev.dsr &&
806 cnow.dcd == cprev.dcd && cnow.cts == cprev.cts)
807 return -EIO; /* no change => error */
808 if (((arg & TIOCM_RNG) && (cnow.rng != cprev.rng)) ||
809 ((arg & TIOCM_DSR) && (cnow.dsr != cprev.dsr)) ||
810 ((arg & TIOCM_CD) && (cnow.dcd != cprev.dcd)) ||
811 ((arg & TIOCM_CTS) && (cnow.cts != cprev.cts)))
821 static void ti_set_termios(struct tty_struct *tty,
822 struct usb_serial_port *port, struct ktermios *old_termios)
824 struct ti_port *tport = usb_get_serial_port_data(port);
825 struct ti_uart_config *config;
826 tcflag_t cflag, iflag;
829 int port_number = port->number - port->serial->minor;
832 cflag = tty->termios->c_cflag;
833 iflag = tty->termios->c_iflag;
835 dbg("%s - cflag %08x, iflag %08x", __func__, cflag, iflag);
836 dbg("%s - old clfag %08x, old iflag %08x", __func__,
837 old_termios->c_cflag, old_termios->c_iflag);
842 config = kmalloc(sizeof(*config), GFP_KERNEL);
844 dev_err(&port->dev, "%s - out of memory\n", __func__);
850 /* these flags must be set */
851 config->wFlags |= TI_UART_ENABLE_MS_INTS;
852 config->wFlags |= TI_UART_ENABLE_AUTO_START_DMA;
853 config->bUartMode = (__u8)(tport->tp_uart_mode);
855 switch (cflag & CSIZE) {
857 config->bDataBits = TI_UART_5_DATA_BITS;
860 config->bDataBits = TI_UART_6_DATA_BITS;
863 config->bDataBits = TI_UART_7_DATA_BITS;
867 config->bDataBits = TI_UART_8_DATA_BITS;
871 /* CMSPAR isn't supported by this driver */
872 tty->termios->c_cflag &= ~CMSPAR;
874 if (cflag & PARENB) {
875 if (cflag & PARODD) {
876 config->wFlags |= TI_UART_ENABLE_PARITY_CHECKING;
877 config->bParity = TI_UART_ODD_PARITY;
879 config->wFlags |= TI_UART_ENABLE_PARITY_CHECKING;
880 config->bParity = TI_UART_EVEN_PARITY;
883 config->wFlags &= ~TI_UART_ENABLE_PARITY_CHECKING;
884 config->bParity = TI_UART_NO_PARITY;
888 config->bStopBits = TI_UART_2_STOP_BITS;
890 config->bStopBits = TI_UART_1_STOP_BITS;
892 if (cflag & CRTSCTS) {
893 /* RTS flow control must be off to drop RTS for baud rate B0 */
894 if ((cflag & CBAUD) != B0)
895 config->wFlags |= TI_UART_ENABLE_RTS_IN;
896 config->wFlags |= TI_UART_ENABLE_CTS_OUT;
899 ti_restart_read(tport, tty);
902 if (I_IXOFF(tty) || I_IXON(tty)) {
903 config->cXon = START_CHAR(tty);
904 config->cXoff = STOP_CHAR(tty);
907 config->wFlags |= TI_UART_ENABLE_X_IN;
909 ti_restart_read(tport, tty);
912 config->wFlags |= TI_UART_ENABLE_X_OUT;
915 baud = tty_get_baud_rate(tty);
918 if (tport->tp_tdev->td_is_3410)
919 config->wBaudRate = (__u16)((923077 + baud/2) / baud);
921 config->wBaudRate = (__u16)((461538 + baud/2) / baud);
923 /* FIXME: Should calculate resulting baud here and report it back */
924 if ((cflag & CBAUD) != B0)
925 tty_encode_baud_rate(tty, baud, baud);
927 dbg("%s - BaudRate=%d, wBaudRate=%d, wFlags=0x%04X, bDataBits=%d, bParity=%d, bStopBits=%d, cXon=%d, cXoff=%d, bUartMode=%d",
928 __func__, baud, config->wBaudRate, config->wFlags, config->bDataBits, config->bParity, config->bStopBits, config->cXon, config->cXoff, config->bUartMode);
930 cpu_to_be16s(&config->wBaudRate);
931 cpu_to_be16s(&config->wFlags);
933 status = ti_command_out_sync(tport->tp_tdev, TI_SET_CONFIG,
934 (__u8)(TI_UART1_PORT + port_number), 0, (__u8 *)config,
937 dev_err(&port->dev, "%s - cannot set config on port %d, %d\n",
938 __func__, port_number, status);
940 /* SET_CONFIG asserts RTS and DTR, reset them correctly */
941 mcr = tport->tp_shadow_mcr;
942 /* if baud rate is B0, clear RTS and DTR */
943 if ((cflag & CBAUD) == B0)
944 mcr &= ~(TI_MCR_DTR | TI_MCR_RTS);
945 status = ti_set_mcr(tport, mcr);
948 "%s - cannot set modem control on port %d, %d\n",
949 __func__, port_number, status);
955 static int ti_tiocmget(struct tty_struct *tty)
957 struct usb_serial_port *port = tty->driver_data;
958 struct ti_port *tport = usb_get_serial_port_data(port);
967 spin_lock_irqsave(&tport->tp_lock, flags);
969 mcr = tport->tp_shadow_mcr;
970 spin_unlock_irqrestore(&tport->tp_lock, flags);
972 result = ((mcr & TI_MCR_DTR) ? TIOCM_DTR : 0)
973 | ((mcr & TI_MCR_RTS) ? TIOCM_RTS : 0)
974 | ((mcr & TI_MCR_LOOP) ? TIOCM_LOOP : 0)
975 | ((msr & TI_MSR_CTS) ? TIOCM_CTS : 0)
976 | ((msr & TI_MSR_CD) ? TIOCM_CAR : 0)
977 | ((msr & TI_MSR_RI) ? TIOCM_RI : 0)
978 | ((msr & TI_MSR_DSR) ? TIOCM_DSR : 0);
980 dbg("%s - 0x%04X", __func__, result);
986 static int ti_tiocmset(struct tty_struct *tty,
987 unsigned int set, unsigned int clear)
989 struct usb_serial_port *port = tty->driver_data;
990 struct ti_port *tport = usb_get_serial_port_data(port);
997 spin_lock_irqsave(&tport->tp_lock, flags);
998 mcr = tport->tp_shadow_mcr;
1000 if (set & TIOCM_RTS)
1002 if (set & TIOCM_DTR)
1004 if (set & TIOCM_LOOP)
1007 if (clear & TIOCM_RTS)
1009 if (clear & TIOCM_DTR)
1011 if (clear & TIOCM_LOOP)
1012 mcr &= ~TI_MCR_LOOP;
1013 spin_unlock_irqrestore(&tport->tp_lock, flags);
1015 return ti_set_mcr(tport, mcr);
1019 static void ti_break(struct tty_struct *tty, int break_state)
1021 struct usb_serial_port *port = tty->driver_data;
1022 struct ti_port *tport = usb_get_serial_port_data(port);
1025 dbg("%s - state = %d", __func__, break_state);
1030 ti_drain(tport, (tport->tp_closing_wait*HZ)/100, 0);
1032 status = ti_write_byte(tport->tp_tdev,
1033 tport->tp_uart_base_addr + TI_UART_OFFSET_LCR,
1034 TI_LCR_BREAK, break_state == -1 ? TI_LCR_BREAK : 0);
1037 dbg("%s - error setting break, %d", __func__, status);
1041 static void ti_interrupt_callback(struct urb *urb)
1043 struct ti_device *tdev = urb->context;
1044 struct usb_serial_port *port;
1045 struct usb_serial *serial = tdev->td_serial;
1046 struct ti_port *tport;
1047 struct device *dev = &urb->dev->dev;
1048 unsigned char *data = urb->transfer_buffer;
1049 int length = urb->actual_length;
1052 int status = urb->status;
1062 dbg("%s - urb shutting down, %d", __func__, status);
1063 tdev->td_urb_error = 1;
1066 dev_err(dev, "%s - nonzero urb status, %d\n",
1068 tdev->td_urb_error = 1;
1073 dbg("%s - bad packet size, %d", __func__, length);
1077 if (data[0] == TI_CODE_HARDWARE_ERROR) {
1078 dev_err(dev, "%s - hardware error, %d\n", __func__, data[1]);
1082 port_number = TI_GET_PORT_FROM_CODE(data[0]);
1083 function = TI_GET_FUNC_FROM_CODE(data[0]);
1085 dbg("%s - port_number %d, function %d, data 0x%02X",
1086 __func__, port_number, function, data[1]);
1088 if (port_number >= serial->num_ports) {
1089 dev_err(dev, "%s - bad port number, %d\n",
1090 __func__, port_number);
1094 port = serial->port[port_number];
1096 tport = usb_get_serial_port_data(port);
1101 case TI_CODE_DATA_ERROR:
1102 dev_err(dev, "%s - DATA ERROR, port %d, data 0x%02X\n",
1103 __func__, port_number, data[1]);
1106 case TI_CODE_MODEM_STATUS:
1108 dbg("%s - port %d, msr 0x%02X", __func__, port_number, msr);
1109 ti_handle_new_msr(tport, msr);
1113 dev_err(dev, "%s - unknown interrupt code, 0x%02X\n",
1119 retval = usb_submit_urb(urb, GFP_ATOMIC);
1121 dev_err(dev, "%s - resubmit interrupt urb failed, %d\n",
1126 static void ti_bulk_in_callback(struct urb *urb)
1128 struct ti_port *tport = urb->context;
1129 struct usb_serial_port *port = tport->tp_port;
1130 struct device *dev = &urb->dev->dev;
1131 int status = urb->status;
1133 struct tty_struct *tty;
1141 dbg("%s - urb shutting down, %d", __func__, status);
1142 tport->tp_tdev->td_urb_error = 1;
1143 wake_up_interruptible(&tport->tp_write_wait);
1146 dev_err(dev, "%s - nonzero urb status, %d\n",
1148 tport->tp_tdev->td_urb_error = 1;
1149 wake_up_interruptible(&tport->tp_write_wait);
1152 if (status == -EPIPE)
1156 dev_err(dev, "%s - stopping read!\n", __func__);
1160 tty = tty_port_tty_get(&port->port);
1162 if (urb->actual_length) {
1163 usb_serial_debug_data(debug, dev, __func__,
1164 urb->actual_length, urb->transfer_buffer);
1166 if (!tport->tp_is_open)
1167 dbg("%s - port closed, dropping data",
1170 ti_recv(&urb->dev->dev, tty,
1171 urb->transfer_buffer,
1172 urb->actual_length);
1173 spin_lock(&tport->tp_lock);
1174 tport->tp_icount.rx += urb->actual_length;
1175 spin_unlock(&tport->tp_lock);
1181 /* continue to read unless stopping */
1182 spin_lock(&tport->tp_lock);
1183 if (tport->tp_read_urb_state == TI_READ_URB_RUNNING)
1184 retval = usb_submit_urb(urb, GFP_ATOMIC);
1185 else if (tport->tp_read_urb_state == TI_READ_URB_STOPPING)
1186 tport->tp_read_urb_state = TI_READ_URB_STOPPED;
1188 spin_unlock(&tport->tp_lock);
1190 dev_err(dev, "%s - resubmit read urb failed, %d\n",
1195 static void ti_bulk_out_callback(struct urb *urb)
1197 struct ti_port *tport = urb->context;
1198 struct usb_serial_port *port = tport->tp_port;
1199 int status = urb->status;
1201 tport->tp_write_urb_in_use = 0;
1209 dbg("%s - urb shutting down, %d", __func__, status);
1210 tport->tp_tdev->td_urb_error = 1;
1211 wake_up_interruptible(&tport->tp_write_wait);
1214 dev_err_console(port, "%s - nonzero urb status, %d\n",
1216 tport->tp_tdev->td_urb_error = 1;
1217 wake_up_interruptible(&tport->tp_write_wait);
1220 /* send any buffered data */
1225 static void ti_recv(struct device *dev, struct tty_struct *tty,
1226 unsigned char *data, int length)
1231 cnt = tty_insert_flip_string(tty, data, length);
1233 dev_err(dev, "%s - dropping data, %d bytes lost\n",
1234 __func__, length - cnt);
1238 tty_flip_buffer_push(tty);
1241 } while (length > 0);
1246 static void ti_send(struct ti_port *tport)
1249 struct usb_serial_port *port = tport->tp_port;
1250 struct tty_struct *tty = tty_port_tty_get(&port->port); /* FIXME */
1251 unsigned long flags;
1253 spin_lock_irqsave(&tport->tp_lock, flags);
1255 if (tport->tp_write_urb_in_use)
1258 count = kfifo_out(&tport->write_fifo,
1259 port->write_urb->transfer_buffer,
1260 port->bulk_out_size);
1265 tport->tp_write_urb_in_use = 1;
1267 spin_unlock_irqrestore(&tport->tp_lock, flags);
1269 usb_serial_debug_data(debug, &port->dev, __func__, count,
1270 port->write_urb->transfer_buffer);
1272 usb_fill_bulk_urb(port->write_urb, port->serial->dev,
1273 usb_sndbulkpipe(port->serial->dev,
1274 port->bulk_out_endpointAddress),
1275 port->write_urb->transfer_buffer, count,
1276 ti_bulk_out_callback, tport);
1278 result = usb_submit_urb(port->write_urb, GFP_ATOMIC);
1280 dev_err_console(port, "%s - submit write urb failed, %d\n",
1282 tport->tp_write_urb_in_use = 0;
1283 /* TODO: reschedule ti_send */
1285 spin_lock_irqsave(&tport->tp_lock, flags);
1286 tport->tp_icount.tx += count;
1287 spin_unlock_irqrestore(&tport->tp_lock, flags);
1290 /* more room in the buffer for new writes, wakeup */
1294 wake_up_interruptible(&tport->tp_write_wait);
1297 spin_unlock_irqrestore(&tport->tp_lock, flags);
1303 static int ti_set_mcr(struct ti_port *tport, unsigned int mcr)
1305 unsigned long flags;
1308 status = ti_write_byte(tport->tp_tdev,
1309 tport->tp_uart_base_addr + TI_UART_OFFSET_MCR,
1310 TI_MCR_RTS | TI_MCR_DTR | TI_MCR_LOOP, mcr);
1312 spin_lock_irqsave(&tport->tp_lock, flags);
1314 tport->tp_shadow_mcr = mcr;
1315 spin_unlock_irqrestore(&tport->tp_lock, flags);
1321 static int ti_get_lsr(struct ti_port *tport)
1324 struct ti_device *tdev = tport->tp_tdev;
1325 struct usb_serial_port *port = tport->tp_port;
1326 int port_number = port->number - port->serial->minor;
1327 struct ti_port_status *data;
1329 size = sizeof(struct ti_port_status);
1330 data = kmalloc(size, GFP_KERNEL);
1332 dev_err(&port->dev, "%s - out of memory\n", __func__);
1336 status = ti_command_in_sync(tdev, TI_GET_PORT_STATUS,
1337 (__u8)(TI_UART1_PORT+port_number), 0, (__u8 *)data, size);
1340 "%s - get port status command failed, %d\n",
1345 dbg("%s - lsr 0x%02X", __func__, data->bLSR);
1347 tport->tp_lsr = data->bLSR;
1355 static int ti_get_serial_info(struct ti_port *tport,
1356 struct serial_struct __user *ret_arg)
1358 struct usb_serial_port *port = tport->tp_port;
1359 struct serial_struct ret_serial;
1364 memset(&ret_serial, 0, sizeof(ret_serial));
1366 ret_serial.type = PORT_16550A;
1367 ret_serial.line = port->serial->minor;
1368 ret_serial.port = port->number - port->serial->minor;
1369 ret_serial.flags = tport->tp_flags;
1370 ret_serial.xmit_fifo_size = TI_WRITE_BUF_SIZE;
1371 ret_serial.baud_base = tport->tp_tdev->td_is_3410 ? 921600 : 460800;
1372 ret_serial.closing_wait = tport->tp_closing_wait;
1374 if (copy_to_user(ret_arg, &ret_serial, sizeof(*ret_arg)))
1381 static int ti_set_serial_info(struct tty_struct *tty, struct ti_port *tport,
1382 struct serial_struct __user *new_arg)
1384 struct serial_struct new_serial;
1386 if (copy_from_user(&new_serial, new_arg, sizeof(new_serial)))
1389 tport->tp_flags = new_serial.flags & TI_SET_SERIAL_FLAGS;
1390 tport->tp_closing_wait = new_serial.closing_wait;
1396 static void ti_handle_new_msr(struct ti_port *tport, __u8 msr)
1398 struct async_icount *icount;
1399 struct tty_struct *tty;
1400 unsigned long flags;
1402 dbg("%s - msr 0x%02X", __func__, msr);
1404 if (msr & TI_MSR_DELTA_MASK) {
1405 spin_lock_irqsave(&tport->tp_lock, flags);
1406 icount = &tport->tp_icount;
1407 if (msr & TI_MSR_DELTA_CTS)
1409 if (msr & TI_MSR_DELTA_DSR)
1411 if (msr & TI_MSR_DELTA_CD)
1413 if (msr & TI_MSR_DELTA_RI)
1415 wake_up_interruptible(&tport->tp_msr_wait);
1416 spin_unlock_irqrestore(&tport->tp_lock, flags);
1419 tport->tp_msr = msr & TI_MSR_MASK;
1421 /* handle CTS flow control */
1422 tty = tty_port_tty_get(&tport->tp_port->port);
1423 if (tty && C_CRTSCTS(tty)) {
1424 if (msr & TI_MSR_CTS) {
1425 tty->hw_stopped = 0;
1428 tty->hw_stopped = 1;
1435 static void ti_drain(struct ti_port *tport, unsigned long timeout, int flush)
1437 struct ti_device *tdev = tport->tp_tdev;
1438 struct usb_serial_port *port = tport->tp_port;
1441 spin_lock_irq(&tport->tp_lock);
1443 /* wait for data to drain from the buffer */
1444 tdev->td_urb_error = 0;
1445 init_waitqueue_entry(&wait, current);
1446 add_wait_queue(&tport->tp_write_wait, &wait);
1448 set_current_state(TASK_INTERRUPTIBLE);
1449 if (kfifo_len(&tport->write_fifo) == 0
1450 || timeout == 0 || signal_pending(current)
1451 || tdev->td_urb_error
1452 || port->serial->disconnected) /* disconnect */
1454 spin_unlock_irq(&tport->tp_lock);
1455 timeout = schedule_timeout(timeout);
1456 spin_lock_irq(&tport->tp_lock);
1458 set_current_state(TASK_RUNNING);
1459 remove_wait_queue(&tport->tp_write_wait, &wait);
1461 /* flush any remaining data in the buffer */
1463 kfifo_reset_out(&tport->write_fifo);
1465 spin_unlock_irq(&tport->tp_lock);
1467 mutex_lock(&port->serial->disc_mutex);
1468 /* wait for data to drain from the device */
1469 /* wait for empty tx register, plus 20 ms */
1471 tport->tp_lsr &= ~TI_LSR_TX_EMPTY;
1472 while ((long)(jiffies - timeout) < 0 && !signal_pending(current)
1473 && !(tport->tp_lsr&TI_LSR_TX_EMPTY) && !tdev->td_urb_error
1474 && !port->serial->disconnected) {
1475 if (ti_get_lsr(tport))
1477 mutex_unlock(&port->serial->disc_mutex);
1478 msleep_interruptible(20);
1479 mutex_lock(&port->serial->disc_mutex);
1481 mutex_unlock(&port->serial->disc_mutex);
1485 static void ti_stop_read(struct ti_port *tport, struct tty_struct *tty)
1487 unsigned long flags;
1489 spin_lock_irqsave(&tport->tp_lock, flags);
1491 if (tport->tp_read_urb_state == TI_READ_URB_RUNNING)
1492 tport->tp_read_urb_state = TI_READ_URB_STOPPING;
1494 spin_unlock_irqrestore(&tport->tp_lock, flags);
1498 static int ti_restart_read(struct ti_port *tport, struct tty_struct *tty)
1502 unsigned long flags;
1504 spin_lock_irqsave(&tport->tp_lock, flags);
1506 if (tport->tp_read_urb_state == TI_READ_URB_STOPPED) {
1507 tport->tp_read_urb_state = TI_READ_URB_RUNNING;
1508 urb = tport->tp_port->read_urb;
1509 spin_unlock_irqrestore(&tport->tp_lock, flags);
1510 urb->context = tport;
1511 status = usb_submit_urb(urb, GFP_KERNEL);
1513 tport->tp_read_urb_state = TI_READ_URB_RUNNING;
1514 spin_unlock_irqrestore(&tport->tp_lock, flags);
1521 static int ti_command_out_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_sndctrlpipe(tdev->td_serial->dev, 0), command,
1528 (USB_TYPE_VENDOR | USB_RECIP_DEVICE | USB_DIR_OUT),
1529 value, moduleid, data, size, 1000);
1541 static int ti_command_in_sync(struct ti_device *tdev, __u8 command,
1542 __u16 moduleid, __u16 value, __u8 *data, int size)
1546 status = usb_control_msg(tdev->td_serial->dev,
1547 usb_rcvctrlpipe(tdev->td_serial->dev, 0), command,
1548 (USB_TYPE_VENDOR | USB_RECIP_DEVICE | USB_DIR_IN),
1549 value, moduleid, data, size, 1000);
1561 static int ti_write_byte(struct ti_device *tdev, unsigned long addr,
1562 __u8 mask, __u8 byte)
1566 struct ti_write_data_bytes *data;
1567 struct device *dev = &tdev->td_serial->dev->dev;
1569 dbg("%s - addr 0x%08lX, mask 0x%02X, byte 0x%02X",
1570 __func__, addr, mask, byte);
1572 size = sizeof(struct ti_write_data_bytes) + 2;
1573 data = kmalloc(size, GFP_KERNEL);
1575 dev_err(dev, "%s - out of memory\n", __func__);
1579 data->bAddrType = TI_RW_DATA_ADDR_XDATA;
1580 data->bDataType = TI_RW_DATA_BYTE;
1581 data->bDataCounter = 1;
1582 data->wBaseAddrHi = cpu_to_be16(addr>>16);
1583 data->wBaseAddrLo = cpu_to_be16(addr);
1584 data->bData[0] = mask;
1585 data->bData[1] = byte;
1587 status = ti_command_out_sync(tdev, TI_WRITE_DATA, TI_RAM_PORT, 0,
1588 (__u8 *)data, size);
1591 dev_err(dev, "%s - failed, %d\n", __func__, status);
1598 static int ti_do_download(struct usb_device *dev, int pipe,
1599 u8 *buffer, int size)
1604 struct ti_firmware_header *header;
1608 for (pos = sizeof(struct ti_firmware_header); pos < size; pos++)
1609 cs = (__u8)(cs + buffer[pos]);
1611 header = (struct ti_firmware_header *)buffer;
1612 header->wLength = cpu_to_le16((__u16)(size
1613 - sizeof(struct ti_firmware_header)));
1614 header->bCheckSum = cs;
1616 dbg("%s - downloading firmware", __func__);
1617 for (pos = 0; pos < size; pos += done) {
1618 len = min(size - pos, TI_DOWNLOAD_MAX_PACKET_SIZE);
1619 status = usb_bulk_msg(dev, pipe, buffer + pos, len,
1627 static int ti_download_firmware(struct ti_device *tdev)
1632 struct usb_device *dev = tdev->td_serial->dev;
1633 unsigned int pipe = usb_sndbulkpipe(dev,
1634 tdev->td_serial->port[0]->bulk_out_endpointAddress);
1635 const struct firmware *fw_p;
1638 /* try ID specific firmware first, then try generic firmware */
1639 sprintf(buf, "ti_usb-v%04x-p%04x.fw", dev->descriptor.idVendor,
1640 dev->descriptor.idProduct);
1641 status = request_firmware(&fw_p, buf, &dev->dev);
1645 if (dev->descriptor.idVendor == MTS_VENDOR_ID) {
1646 switch (dev->descriptor.idProduct) {
1647 case MTS_CDMA_PRODUCT_ID:
1648 strcpy(buf, "mts_cdma.fw");
1650 case MTS_GSM_PRODUCT_ID:
1651 strcpy(buf, "mts_gsm.fw");
1653 case MTS_EDGE_PRODUCT_ID:
1654 strcpy(buf, "mts_edge.fw");
1656 case MTS_MT9234MU_PRODUCT_ID:
1657 strcpy(buf, "mts_mt9234mu.fw");
1659 case MTS_MT9234ZBA_PRODUCT_ID:
1660 strcpy(buf, "mts_mt9234zba.fw");
1662 case MTS_MT9234ZBAOLD_PRODUCT_ID:
1663 strcpy(buf, "mts_mt9234zba.fw");
1666 if (buf[0] == '\0') {
1667 if (tdev->td_is_3410)
1668 strcpy(buf, "ti_3410.fw");
1670 strcpy(buf, "ti_5052.fw");
1672 status = request_firmware(&fw_p, buf, &dev->dev);
1675 dev_err(&dev->dev, "%s - firmware not found\n", __func__);
1678 if (fw_p->size > TI_FIRMWARE_BUF_SIZE) {
1679 dev_err(&dev->dev, "%s - firmware too large %zu\n", __func__, fw_p->size);
1680 release_firmware(fw_p);
1684 buffer_size = TI_FIRMWARE_BUF_SIZE + sizeof(struct ti_firmware_header);
1685 buffer = kmalloc(buffer_size, GFP_KERNEL);
1687 memcpy(buffer, fw_p->data, fw_p->size);
1688 memset(buffer + fw_p->size, 0xff, buffer_size - fw_p->size);
1689 status = ti_do_download(dev, pipe, buffer, fw_p->size);
1692 dbg("%s ENOMEM\n", __func__);
1695 release_firmware(fw_p);
1697 dev_err(&dev->dev, "%s - error downloading firmware, %d\n",
1702 dbg("%s - download successful", __func__);