2 * TI 3410/5052 USB Serial Driver
4 * Copyright (C) 2004 Texas Instruments
6 * This driver is based on the Linux io_ti driver, which is
7 * Copyright (C) 2000-2002 Inside Out Networks
8 * Copyright (C) 2001-2002 Greg Kroah-Hartman
10 * This program is free software; you can redistribute it and/or modify
11 * it under the terms of the GNU General Public License as published by
12 * the Free Software Foundation; either version 2 of the License, or
13 * (at your option) any later version.
15 * For questions or problems with this driver, contact Texas Instruments
16 * technical support, or Al Borchers <alborchers@steinerpoint.com>, or
17 * Peter Berger <pberger@brimson.com>.
20 #include <linux/kernel.h>
21 #include <linux/errno.h>
22 #include <linux/firmware.h>
23 #include <linux/slab.h>
24 #include <linux/tty.h>
25 #include <linux/tty_driver.h>
26 #include <linux/tty_flip.h>
27 #include <linux/module.h>
28 #include <linux/spinlock.h>
29 #include <linux/ioctl.h>
30 #include <linux/serial.h>
31 #include <linux/kfifo.h>
32 #include <linux/mutex.h>
33 #include <linux/uaccess.h>
34 #include <linux/usb.h>
35 #include <linux/usb/serial.h>
37 /* Configuration ids */
38 #define TI_BOOT_CONFIG 1
39 #define TI_ACTIVE_CONFIG 2
41 /* Vendor and product ids */
42 #define TI_VENDOR_ID 0x0451
43 #define IBM_VENDOR_ID 0x04b3
44 #define STARTECH_VENDOR_ID 0x14b0
45 #define TI_3410_PRODUCT_ID 0x3410
46 #define IBM_4543_PRODUCT_ID 0x4543
47 #define IBM_454B_PRODUCT_ID 0x454b
48 #define IBM_454C_PRODUCT_ID 0x454c
49 #define TI_3410_EZ430_ID 0xF430 /* TI ez430 development tool */
50 #define TI_5052_BOOT_PRODUCT_ID 0x5052 /* no EEPROM, no firmware */
51 #define TI_5152_BOOT_PRODUCT_ID 0x5152 /* no EEPROM, no firmware */
52 #define TI_5052_EEPROM_PRODUCT_ID 0x505A /* EEPROM, no firmware */
53 #define TI_5052_FIRMWARE_PRODUCT_ID 0x505F /* firmware is running */
54 #define FRI2_PRODUCT_ID 0x5053 /* Fish River Island II */
56 /* Multi-Tech vendor and product ids */
57 #define MTS_VENDOR_ID 0x06E0
58 #define MTS_GSM_NO_FW_PRODUCT_ID 0xF108
59 #define MTS_CDMA_NO_FW_PRODUCT_ID 0xF109
60 #define MTS_CDMA_PRODUCT_ID 0xF110
61 #define MTS_GSM_PRODUCT_ID 0xF111
62 #define MTS_EDGE_PRODUCT_ID 0xF112
63 #define MTS_MT9234MU_PRODUCT_ID 0xF114
64 #define MTS_MT9234ZBA_PRODUCT_ID 0xF115
65 #define MTS_MT9234ZBAOLD_PRODUCT_ID 0x0319
67 /* Abbott Diabetics vendor and product ids */
68 #define ABBOTT_VENDOR_ID 0x1a61
69 #define ABBOTT_STEREO_PLUG_ID 0x3410
70 #define ABBOTT_PRODUCT_ID ABBOTT_STEREO_PLUG_ID
71 #define ABBOTT_STRIP_PORT_ID 0x3420
73 /* Honeywell vendor and product IDs */
74 #define HONEYWELL_VENDOR_ID 0x10ac
75 #define HONEYWELL_HGI80_PRODUCT_ID 0x0102 /* Honeywell HGI80 */
77 /* Moxa UPORT 11x0 vendor and product IDs */
78 #define MXU1_VENDOR_ID 0x110a
79 #define MXU1_1110_PRODUCT_ID 0x1110
80 #define MXU1_1130_PRODUCT_ID 0x1130
81 #define MXU1_1150_PRODUCT_ID 0x1150
82 #define MXU1_1151_PRODUCT_ID 0x1151
83 #define MXU1_1131_PRODUCT_ID 0x1131
86 #define TI_GET_VERSION 0x01
87 #define TI_GET_PORT_STATUS 0x02
88 #define TI_GET_PORT_DEV_INFO 0x03
89 #define TI_GET_CONFIG 0x04
90 #define TI_SET_CONFIG 0x05
91 #define TI_OPEN_PORT 0x06
92 #define TI_CLOSE_PORT 0x07
93 #define TI_START_PORT 0x08
94 #define TI_STOP_PORT 0x09
95 #define TI_TEST_PORT 0x0A
96 #define TI_PURGE_PORT 0x0B
97 #define TI_RESET_EXT_DEVICE 0x0C
98 #define TI_WRITE_DATA 0x80
99 #define TI_READ_DATA 0x81
100 #define TI_REQ_TYPE_CLASS 0x82
102 /* Module identifiers */
103 #define TI_I2C_PORT 0x01
104 #define TI_IEEE1284_PORT 0x02
105 #define TI_UART1_PORT 0x03
106 #define TI_UART2_PORT 0x04
107 #define TI_RAM_PORT 0x05
110 #define TI_MSR_DELTA_CTS 0x01
111 #define TI_MSR_DELTA_DSR 0x02
112 #define TI_MSR_DELTA_RI 0x04
113 #define TI_MSR_DELTA_CD 0x08
114 #define TI_MSR_CTS 0x10
115 #define TI_MSR_DSR 0x20
116 #define TI_MSR_RI 0x40
117 #define TI_MSR_CD 0x80
118 #define TI_MSR_DELTA_MASK 0x0F
119 #define TI_MSR_MASK 0xF0
122 #define TI_LSR_OVERRUN_ERROR 0x01
123 #define TI_LSR_PARITY_ERROR 0x02
124 #define TI_LSR_FRAMING_ERROR 0x04
125 #define TI_LSR_BREAK 0x08
126 #define TI_LSR_ERROR 0x0F
127 #define TI_LSR_RX_FULL 0x10
128 #define TI_LSR_TX_EMPTY 0x20
131 #define TI_LCR_BREAK 0x40
134 #define TI_MCR_LOOP 0x04
135 #define TI_MCR_DTR 0x10
136 #define TI_MCR_RTS 0x20
139 #define TI_UART_ENABLE_RTS_IN 0x0001
140 #define TI_UART_DISABLE_RTS 0x0002
141 #define TI_UART_ENABLE_PARITY_CHECKING 0x0008
142 #define TI_UART_ENABLE_DSR_OUT 0x0010
143 #define TI_UART_ENABLE_CTS_OUT 0x0020
144 #define TI_UART_ENABLE_X_OUT 0x0040
145 #define TI_UART_ENABLE_XA_OUT 0x0080
146 #define TI_UART_ENABLE_X_IN 0x0100
147 #define TI_UART_ENABLE_DTR_IN 0x0800
148 #define TI_UART_DISABLE_DTR 0x1000
149 #define TI_UART_ENABLE_MS_INTS 0x2000
150 #define TI_UART_ENABLE_AUTO_START_DMA 0x4000
153 #define TI_UART_NO_PARITY 0x00
154 #define TI_UART_ODD_PARITY 0x01
155 #define TI_UART_EVEN_PARITY 0x02
156 #define TI_UART_MARK_PARITY 0x03
157 #define TI_UART_SPACE_PARITY 0x04
160 #define TI_UART_1_STOP_BITS 0x00
161 #define TI_UART_1_5_STOP_BITS 0x01
162 #define TI_UART_2_STOP_BITS 0x02
164 /* Bits per character */
165 #define TI_UART_5_DATA_BITS 0x00
166 #define TI_UART_6_DATA_BITS 0x01
167 #define TI_UART_7_DATA_BITS 0x02
168 #define TI_UART_8_DATA_BITS 0x03
171 #define TI_UART_232 0x00
172 #define TI_UART_485_RECEIVER_DISABLED 0x01
173 #define TI_UART_485_RECEIVER_ENABLED 0x02
175 /* Pipe transfer mode and timeout */
176 #define TI_PIPE_MODE_CONTINUOUS 0x01
177 #define TI_PIPE_MODE_MASK 0x03
178 #define TI_PIPE_TIMEOUT_MASK 0x7C
179 #define TI_PIPE_TIMEOUT_ENABLE 0x80
182 struct ti_uart_config {
193 /* Get port status */
194 struct ti_port_status {
203 #define TI_PURGE_OUTPUT 0x00
204 #define TI_PURGE_INPUT 0x80
206 /* Read/Write data */
207 #define TI_RW_DATA_ADDR_SFR 0x10
208 #define TI_RW_DATA_ADDR_IDATA 0x20
209 #define TI_RW_DATA_ADDR_XDATA 0x30
210 #define TI_RW_DATA_ADDR_CODE 0x40
211 #define TI_RW_DATA_ADDR_GPIO 0x50
212 #define TI_RW_DATA_ADDR_I2C 0x60
213 #define TI_RW_DATA_ADDR_FLASH 0x70
214 #define TI_RW_DATA_ADDR_DSP 0x80
216 #define TI_RW_DATA_UNSPECIFIED 0x00
217 #define TI_RW_DATA_BYTE 0x01
218 #define TI_RW_DATA_WORD 0x02
219 #define TI_RW_DATA_DOUBLE_WORD 0x04
221 struct ti_write_data_bytes {
230 struct ti_read_data_request {
238 struct ti_read_data_bytes {
245 /* Interrupt struct */
246 struct ti_interrupt {
251 /* Interrupt codes */
252 #define TI_CODE_HARDWARE_ERROR 0xFF
253 #define TI_CODE_DATA_ERROR 0x03
254 #define TI_CODE_MODEM_STATUS 0x04
256 /* Download firmware max packet size */
257 #define TI_DOWNLOAD_MAX_PACKET_SIZE 64
259 /* Firmware image header */
260 struct ti_firmware_header {
266 #define TI_UART1_BASE_ADDR 0xFFA0 /* UART 1 base address */
267 #define TI_UART2_BASE_ADDR 0xFFB0 /* UART 2 base address */
268 #define TI_UART_OFFSET_LCR 0x0002 /* UART MCR register offset */
269 #define TI_UART_OFFSET_MCR 0x0004 /* UART MCR register offset */
271 #define TI_DRIVER_AUTHOR "Al Borchers <alborchers@steinerpoint.com>"
272 #define TI_DRIVER_DESC "TI USB 3410/5052 Serial Driver"
274 #define TI_FIRMWARE_BUF_SIZE 16284
276 #define TI_TRANSFER_TIMEOUT 2
278 #define TI_DEFAULT_CLOSING_WAIT 4000 /* in .01 secs */
280 /* read urb states */
281 #define TI_READ_URB_RUNNING 0
282 #define TI_READ_URB_STOPPING 1
283 #define TI_READ_URB_STOPPED 2
285 #define TI_EXTRA_VID_PID_COUNT 5
291 u8 tp_uart_mode; /* 232 or 485 modes */
292 unsigned int tp_uart_base_addr;
293 struct ti_device *tp_tdev;
294 struct usb_serial_port *tp_port;
296 int tp_read_urb_state;
297 int tp_write_urb_in_use;
301 struct mutex td_open_close_lock;
302 int td_open_port_count;
303 struct usb_serial *td_serial;
308 static int ti_startup(struct usb_serial *serial);
309 static void ti_release(struct usb_serial *serial);
310 static int ti_port_probe(struct usb_serial_port *port);
311 static int ti_port_remove(struct usb_serial_port *port);
312 static int ti_open(struct tty_struct *tty, struct usb_serial_port *port);
313 static void ti_close(struct usb_serial_port *port);
314 static int ti_write(struct tty_struct *tty, struct usb_serial_port *port,
315 const unsigned char *data, int count);
316 static int ti_write_room(struct tty_struct *tty);
317 static int ti_chars_in_buffer(struct tty_struct *tty);
318 static bool ti_tx_empty(struct usb_serial_port *port);
319 static void ti_throttle(struct tty_struct *tty);
320 static void ti_unthrottle(struct tty_struct *tty);
321 static int ti_ioctl(struct tty_struct *tty,
322 unsigned int cmd, unsigned long arg);
323 static void ti_set_termios(struct tty_struct *tty,
324 struct usb_serial_port *port, struct ktermios *old_termios);
325 static int ti_tiocmget(struct tty_struct *tty);
326 static int ti_tiocmset(struct tty_struct *tty,
327 unsigned int set, unsigned int clear);
328 static void ti_break(struct tty_struct *tty, int break_state);
329 static void ti_interrupt_callback(struct urb *urb);
330 static void ti_bulk_in_callback(struct urb *urb);
331 static void ti_bulk_out_callback(struct urb *urb);
333 static void ti_recv(struct usb_serial_port *port, unsigned char *data,
335 static void ti_send(struct ti_port *tport);
336 static int ti_set_mcr(struct ti_port *tport, unsigned int mcr);
337 static int ti_get_lsr(struct ti_port *tport, u8 *lsr);
338 static int ti_get_serial_info(struct ti_port *tport,
339 struct serial_struct __user *ret_arg);
340 static int ti_set_serial_info(struct tty_struct *tty, struct ti_port *tport,
341 struct serial_struct __user *new_arg);
342 static void ti_handle_new_msr(struct ti_port *tport, u8 msr);
344 static void ti_stop_read(struct ti_port *tport, struct tty_struct *tty);
345 static int ti_restart_read(struct ti_port *tport, struct tty_struct *tty);
347 static int ti_command_out_sync(struct ti_device *tdev, __u8 command,
348 __u16 moduleid, __u16 value, __u8 *data, int size);
349 static int ti_command_in_sync(struct ti_device *tdev, __u8 command,
350 __u16 moduleid, __u16 value, __u8 *data, int size);
352 static int ti_write_byte(struct usb_serial_port *port, struct ti_device *tdev,
353 unsigned long addr, u8 mask, u8 byte);
355 static int ti_download_firmware(struct ti_device *tdev);
357 static int closing_wait = TI_DEFAULT_CLOSING_WAIT;
359 static const struct usb_device_id ti_id_table_3410[] = {
360 { USB_DEVICE(TI_VENDOR_ID, TI_3410_PRODUCT_ID) },
361 { USB_DEVICE(TI_VENDOR_ID, TI_3410_EZ430_ID) },
362 { USB_DEVICE(MTS_VENDOR_ID, MTS_GSM_NO_FW_PRODUCT_ID) },
363 { USB_DEVICE(MTS_VENDOR_ID, MTS_CDMA_NO_FW_PRODUCT_ID) },
364 { USB_DEVICE(MTS_VENDOR_ID, MTS_CDMA_PRODUCT_ID) },
365 { USB_DEVICE(MTS_VENDOR_ID, MTS_GSM_PRODUCT_ID) },
366 { USB_DEVICE(MTS_VENDOR_ID, MTS_EDGE_PRODUCT_ID) },
367 { USB_DEVICE(MTS_VENDOR_ID, MTS_MT9234MU_PRODUCT_ID) },
368 { USB_DEVICE(MTS_VENDOR_ID, MTS_MT9234ZBA_PRODUCT_ID) },
369 { USB_DEVICE(MTS_VENDOR_ID, MTS_MT9234ZBAOLD_PRODUCT_ID) },
370 { USB_DEVICE(IBM_VENDOR_ID, IBM_4543_PRODUCT_ID) },
371 { USB_DEVICE(IBM_VENDOR_ID, IBM_454B_PRODUCT_ID) },
372 { USB_DEVICE(IBM_VENDOR_ID, IBM_454C_PRODUCT_ID) },
373 { USB_DEVICE(ABBOTT_VENDOR_ID, ABBOTT_STEREO_PLUG_ID) },
374 { USB_DEVICE(ABBOTT_VENDOR_ID, ABBOTT_STRIP_PORT_ID) },
375 { USB_DEVICE(TI_VENDOR_ID, FRI2_PRODUCT_ID) },
376 { USB_DEVICE(HONEYWELL_VENDOR_ID, HONEYWELL_HGI80_PRODUCT_ID) },
377 { USB_DEVICE(MXU1_VENDOR_ID, MXU1_1110_PRODUCT_ID) },
378 { USB_DEVICE(MXU1_VENDOR_ID, MXU1_1130_PRODUCT_ID) },
379 { USB_DEVICE(MXU1_VENDOR_ID, MXU1_1131_PRODUCT_ID) },
380 { USB_DEVICE(MXU1_VENDOR_ID, MXU1_1150_PRODUCT_ID) },
381 { USB_DEVICE(MXU1_VENDOR_ID, MXU1_1151_PRODUCT_ID) },
382 { USB_DEVICE(STARTECH_VENDOR_ID, TI_3410_PRODUCT_ID) },
386 static const struct usb_device_id ti_id_table_5052[] = {
387 { USB_DEVICE(TI_VENDOR_ID, TI_5052_BOOT_PRODUCT_ID) },
388 { USB_DEVICE(TI_VENDOR_ID, TI_5152_BOOT_PRODUCT_ID) },
389 { USB_DEVICE(TI_VENDOR_ID, TI_5052_EEPROM_PRODUCT_ID) },
390 { USB_DEVICE(TI_VENDOR_ID, TI_5052_FIRMWARE_PRODUCT_ID) },
394 static const struct usb_device_id ti_id_table_combined[] = {
395 { USB_DEVICE(TI_VENDOR_ID, TI_3410_PRODUCT_ID) },
396 { USB_DEVICE(TI_VENDOR_ID, TI_3410_EZ430_ID) },
397 { USB_DEVICE(MTS_VENDOR_ID, MTS_GSM_NO_FW_PRODUCT_ID) },
398 { USB_DEVICE(MTS_VENDOR_ID, MTS_CDMA_NO_FW_PRODUCT_ID) },
399 { USB_DEVICE(MTS_VENDOR_ID, MTS_CDMA_PRODUCT_ID) },
400 { USB_DEVICE(MTS_VENDOR_ID, MTS_GSM_PRODUCT_ID) },
401 { USB_DEVICE(MTS_VENDOR_ID, MTS_EDGE_PRODUCT_ID) },
402 { USB_DEVICE(MTS_VENDOR_ID, MTS_MT9234MU_PRODUCT_ID) },
403 { USB_DEVICE(MTS_VENDOR_ID, MTS_MT9234ZBA_PRODUCT_ID) },
404 { USB_DEVICE(MTS_VENDOR_ID, MTS_MT9234ZBAOLD_PRODUCT_ID) },
405 { USB_DEVICE(TI_VENDOR_ID, TI_5052_BOOT_PRODUCT_ID) },
406 { USB_DEVICE(TI_VENDOR_ID, TI_5152_BOOT_PRODUCT_ID) },
407 { USB_DEVICE(TI_VENDOR_ID, TI_5052_EEPROM_PRODUCT_ID) },
408 { USB_DEVICE(TI_VENDOR_ID, TI_5052_FIRMWARE_PRODUCT_ID) },
409 { USB_DEVICE(IBM_VENDOR_ID, IBM_4543_PRODUCT_ID) },
410 { USB_DEVICE(IBM_VENDOR_ID, IBM_454B_PRODUCT_ID) },
411 { USB_DEVICE(IBM_VENDOR_ID, IBM_454C_PRODUCT_ID) },
412 { USB_DEVICE(ABBOTT_VENDOR_ID, ABBOTT_PRODUCT_ID) },
413 { USB_DEVICE(ABBOTT_VENDOR_ID, ABBOTT_STRIP_PORT_ID) },
414 { USB_DEVICE(TI_VENDOR_ID, FRI2_PRODUCT_ID) },
415 { USB_DEVICE(HONEYWELL_VENDOR_ID, HONEYWELL_HGI80_PRODUCT_ID) },
416 { USB_DEVICE(MXU1_VENDOR_ID, MXU1_1110_PRODUCT_ID) },
417 { USB_DEVICE(MXU1_VENDOR_ID, MXU1_1130_PRODUCT_ID) },
418 { USB_DEVICE(MXU1_VENDOR_ID, MXU1_1131_PRODUCT_ID) },
419 { USB_DEVICE(MXU1_VENDOR_ID, MXU1_1150_PRODUCT_ID) },
420 { USB_DEVICE(MXU1_VENDOR_ID, MXU1_1151_PRODUCT_ID) },
421 { USB_DEVICE(STARTECH_VENDOR_ID, TI_3410_PRODUCT_ID) },
425 static struct usb_serial_driver ti_1port_device = {
427 .owner = THIS_MODULE,
428 .name = "ti_usb_3410_5052_1",
430 .description = "TI USB 3410 1 port adapter",
431 .id_table = ti_id_table_3410,
434 .attach = ti_startup,
435 .release = ti_release,
436 .port_probe = ti_port_probe,
437 .port_remove = ti_port_remove,
441 .write_room = ti_write_room,
442 .chars_in_buffer = ti_chars_in_buffer,
443 .tx_empty = ti_tx_empty,
444 .throttle = ti_throttle,
445 .unthrottle = ti_unthrottle,
447 .set_termios = ti_set_termios,
448 .tiocmget = ti_tiocmget,
449 .tiocmset = ti_tiocmset,
450 .tiocmiwait = usb_serial_generic_tiocmiwait,
451 .get_icount = usb_serial_generic_get_icount,
452 .break_ctl = ti_break,
453 .read_int_callback = ti_interrupt_callback,
454 .read_bulk_callback = ti_bulk_in_callback,
455 .write_bulk_callback = ti_bulk_out_callback,
458 static struct usb_serial_driver ti_2port_device = {
460 .owner = THIS_MODULE,
461 .name = "ti_usb_3410_5052_2",
463 .description = "TI USB 5052 2 port adapter",
464 .id_table = ti_id_table_5052,
467 .attach = ti_startup,
468 .release = ti_release,
469 .port_probe = ti_port_probe,
470 .port_remove = ti_port_remove,
474 .write_room = ti_write_room,
475 .chars_in_buffer = ti_chars_in_buffer,
476 .tx_empty = ti_tx_empty,
477 .throttle = ti_throttle,
478 .unthrottle = ti_unthrottle,
480 .set_termios = ti_set_termios,
481 .tiocmget = ti_tiocmget,
482 .tiocmset = ti_tiocmset,
483 .tiocmiwait = usb_serial_generic_tiocmiwait,
484 .get_icount = usb_serial_generic_get_icount,
485 .break_ctl = ti_break,
486 .read_int_callback = ti_interrupt_callback,
487 .read_bulk_callback = ti_bulk_in_callback,
488 .write_bulk_callback = ti_bulk_out_callback,
491 static struct usb_serial_driver * const serial_drivers[] = {
492 &ti_1port_device, &ti_2port_device, NULL
495 MODULE_AUTHOR(TI_DRIVER_AUTHOR);
496 MODULE_DESCRIPTION(TI_DRIVER_DESC);
497 MODULE_LICENSE("GPL");
501 module_param(closing_wait, int, S_IRUGO | S_IWUSR);
502 MODULE_PARM_DESC(closing_wait,
503 "Maximum wait for data to drain in close, in .01 secs, default is 4000");
505 MODULE_DEVICE_TABLE(usb, ti_id_table_combined);
507 module_usb_serial_driver(serial_drivers, ti_id_table_combined);
509 static int ti_startup(struct usb_serial *serial)
511 struct ti_device *tdev;
512 struct usb_device *dev = serial->dev;
513 struct usb_host_interface *cur_altsetting;
519 "%s - product 0x%4X, num configurations %d, configuration value %d\n",
520 __func__, le16_to_cpu(dev->descriptor.idProduct),
521 dev->descriptor.bNumConfigurations,
522 dev->actconfig->desc.bConfigurationValue);
524 tdev = kzalloc(sizeof(struct ti_device), GFP_KERNEL);
528 mutex_init(&tdev->td_open_close_lock);
529 tdev->td_serial = serial;
530 usb_set_serial_data(serial, tdev);
532 /* determine device type */
533 if (serial->type == &ti_1port_device)
534 tdev->td_is_3410 = 1;
535 dev_dbg(&dev->dev, "%s - device type is %s\n", __func__,
536 tdev->td_is_3410 ? "3410" : "5052");
538 vid = le16_to_cpu(dev->descriptor.idVendor);
539 pid = le16_to_cpu(dev->descriptor.idProduct);
540 if (vid == MXU1_VENDOR_ID) {
542 case MXU1_1130_PRODUCT_ID:
543 case MXU1_1131_PRODUCT_ID:
544 tdev->td_rs485_only = true;
549 cur_altsetting = serial->interface->cur_altsetting;
550 num_endpoints = cur_altsetting->desc.bNumEndpoints;
552 /* if we have only 1 configuration and 1 endpoint, download firmware */
553 if (dev->descriptor.bNumConfigurations == 1 && num_endpoints == 1) {
554 status = ti_download_firmware(tdev);
559 /* 3410 must be reset, 5052 resets itself */
560 if (tdev->td_is_3410) {
561 msleep_interruptible(100);
562 usb_reset_device(dev);
569 /* the second configuration must be set */
570 if (dev->actconfig->desc.bConfigurationValue == TI_BOOT_CONFIG) {
571 status = usb_driver_set_configuration(dev, TI_ACTIVE_CONFIG);
572 status = status ? status : -ENODEV;
576 if (serial->num_bulk_in < serial->num_ports ||
577 serial->num_bulk_out < serial->num_ports) {
578 dev_err(&serial->interface->dev, "missing endpoints\n");
587 usb_set_serial_data(serial, NULL);
592 static void ti_release(struct usb_serial *serial)
594 struct ti_device *tdev = usb_get_serial_data(serial);
599 static int ti_port_probe(struct usb_serial_port *port)
601 struct ti_port *tport;
603 tport = kzalloc(sizeof(*tport), GFP_KERNEL);
607 spin_lock_init(&tport->tp_lock);
608 if (port == port->serial->port[0])
609 tport->tp_uart_base_addr = TI_UART1_BASE_ADDR;
611 tport->tp_uart_base_addr = TI_UART2_BASE_ADDR;
612 port->port.closing_wait = msecs_to_jiffies(10 * closing_wait);
613 tport->tp_port = port;
614 tport->tp_tdev = usb_get_serial_data(port->serial);
616 if (tport->tp_tdev->td_rs485_only)
617 tport->tp_uart_mode = TI_UART_485_RECEIVER_DISABLED;
619 tport->tp_uart_mode = TI_UART_232;
621 usb_set_serial_port_data(port, tport);
623 port->port.drain_delay = 3;
628 static int ti_port_remove(struct usb_serial_port *port)
630 struct ti_port *tport;
632 tport = usb_get_serial_port_data(port);
638 static int ti_open(struct tty_struct *tty, struct usb_serial_port *port)
640 struct ti_port *tport = usb_get_serial_port_data(port);
641 struct ti_device *tdev;
642 struct usb_device *dev;
648 open_settings = (TI_PIPE_MODE_CONTINUOUS |
649 TI_PIPE_TIMEOUT_ENABLE |
650 (TI_TRANSFER_TIMEOUT << 2));
652 dev = port->serial->dev;
653 tdev = tport->tp_tdev;
655 /* only one open on any port on a device at a time */
656 if (mutex_lock_interruptible(&tdev->td_open_close_lock))
659 port_number = port->port_number;
662 tport->tp_shadow_mcr |= (TI_MCR_RTS | TI_MCR_DTR);
664 /* start interrupt urb the first time a port is opened on this device */
665 if (tdev->td_open_port_count == 0) {
666 dev_dbg(&port->dev, "%s - start interrupt in urb\n", __func__);
667 urb = tdev->td_serial->port[0]->interrupt_in_urb;
669 dev_err(&port->dev, "%s - no interrupt urb\n", __func__);
674 status = usb_submit_urb(urb, GFP_KERNEL);
676 dev_err(&port->dev, "%s - submit interrupt urb failed, %d\n", __func__, status);
682 ti_set_termios(tty, port, &tty->termios);
684 status = ti_command_out_sync(tdev, TI_OPEN_PORT,
685 (__u8)(TI_UART1_PORT + port_number), open_settings, NULL, 0);
687 dev_err(&port->dev, "%s - cannot send open command, %d\n",
692 status = ti_command_out_sync(tdev, TI_START_PORT,
693 (__u8)(TI_UART1_PORT + port_number), 0, NULL, 0);
695 dev_err(&port->dev, "%s - cannot send start command, %d\n",
700 status = ti_command_out_sync(tdev, TI_PURGE_PORT,
701 (__u8)(TI_UART1_PORT + port_number), TI_PURGE_INPUT, NULL, 0);
703 dev_err(&port->dev, "%s - cannot clear input buffers, %d\n",
707 status = ti_command_out_sync(tdev, TI_PURGE_PORT,
708 (__u8)(TI_UART1_PORT + port_number), TI_PURGE_OUTPUT, NULL, 0);
710 dev_err(&port->dev, "%s - cannot clear output buffers, %d\n",
715 /* reset the data toggle on the bulk endpoints to work around bug in
716 * host controllers where things get out of sync some times */
717 usb_clear_halt(dev, port->write_urb->pipe);
718 usb_clear_halt(dev, port->read_urb->pipe);
721 ti_set_termios(tty, port, &tty->termios);
723 status = ti_command_out_sync(tdev, TI_OPEN_PORT,
724 (__u8)(TI_UART1_PORT + port_number), open_settings, NULL, 0);
726 dev_err(&port->dev, "%s - cannot send open command (2), %d\n",
731 status = ti_command_out_sync(tdev, TI_START_PORT,
732 (__u8)(TI_UART1_PORT + port_number), 0, NULL, 0);
734 dev_err(&port->dev, "%s - cannot send start command (2), %d\n",
740 urb = port->read_urb;
742 dev_err(&port->dev, "%s - no read urb\n", __func__);
746 tport->tp_read_urb_state = TI_READ_URB_RUNNING;
747 urb->context = tport;
748 status = usb_submit_urb(urb, GFP_KERNEL);
750 dev_err(&port->dev, "%s - submit read urb failed, %d\n",
755 tport->tp_is_open = 1;
756 ++tdev->td_open_port_count;
761 if (tdev->td_open_port_count == 0)
762 usb_kill_urb(port->serial->port[0]->interrupt_in_urb);
764 mutex_unlock(&tdev->td_open_close_lock);
769 static void ti_close(struct usb_serial_port *port)
771 struct ti_device *tdev;
772 struct ti_port *tport;
777 tdev = usb_get_serial_data(port->serial);
778 tport = usb_get_serial_port_data(port);
780 tport->tp_is_open = 0;
782 usb_kill_urb(port->read_urb);
783 usb_kill_urb(port->write_urb);
784 tport->tp_write_urb_in_use = 0;
785 spin_lock_irqsave(&tport->tp_lock, flags);
786 kfifo_reset_out(&port->write_fifo);
787 spin_unlock_irqrestore(&tport->tp_lock, flags);
789 port_number = port->port_number;
791 status = ti_command_out_sync(tdev, TI_CLOSE_PORT,
792 (__u8)(TI_UART1_PORT + port_number), 0, NULL, 0);
795 "%s - cannot send close port command, %d\n"
798 mutex_lock(&tdev->td_open_close_lock);
799 --tport->tp_tdev->td_open_port_count;
800 if (tport->tp_tdev->td_open_port_count == 0) {
801 /* last port is closed, shut down interrupt urb */
802 usb_kill_urb(port->serial->port[0]->interrupt_in_urb);
804 mutex_unlock(&tdev->td_open_close_lock);
808 static int ti_write(struct tty_struct *tty, struct usb_serial_port *port,
809 const unsigned char *data, int count)
811 struct ti_port *tport = usb_get_serial_port_data(port);
817 if (!tport->tp_is_open)
820 count = kfifo_in_locked(&port->write_fifo, data, count,
828 static int ti_write_room(struct tty_struct *tty)
830 struct usb_serial_port *port = tty->driver_data;
831 struct ti_port *tport = usb_get_serial_port_data(port);
835 spin_lock_irqsave(&tport->tp_lock, flags);
836 room = kfifo_avail(&port->write_fifo);
837 spin_unlock_irqrestore(&tport->tp_lock, flags);
839 dev_dbg(&port->dev, "%s - returns %d\n", __func__, room);
844 static int ti_chars_in_buffer(struct tty_struct *tty)
846 struct usb_serial_port *port = tty->driver_data;
847 struct ti_port *tport = usb_get_serial_port_data(port);
851 spin_lock_irqsave(&tport->tp_lock, flags);
852 chars = kfifo_len(&port->write_fifo);
853 spin_unlock_irqrestore(&tport->tp_lock, flags);
855 dev_dbg(&port->dev, "%s - returns %d\n", __func__, chars);
859 static bool ti_tx_empty(struct usb_serial_port *port)
861 struct ti_port *tport = usb_get_serial_port_data(port);
865 ret = ti_get_lsr(tport, &lsr);
866 if (!ret && !(lsr & TI_LSR_TX_EMPTY))
872 static void ti_throttle(struct tty_struct *tty)
874 struct usb_serial_port *port = tty->driver_data;
875 struct ti_port *tport = usb_get_serial_port_data(port);
877 if (I_IXOFF(tty) || C_CRTSCTS(tty))
878 ti_stop_read(tport, tty);
883 static void ti_unthrottle(struct tty_struct *tty)
885 struct usb_serial_port *port = tty->driver_data;
886 struct ti_port *tport = usb_get_serial_port_data(port);
889 if (I_IXOFF(tty) || C_CRTSCTS(tty)) {
890 status = ti_restart_read(tport, tty);
892 dev_err(&port->dev, "%s - cannot restart read, %d\n",
897 static int ti_ioctl(struct tty_struct *tty,
898 unsigned int cmd, unsigned long arg)
900 struct usb_serial_port *port = tty->driver_data;
901 struct ti_port *tport = usb_get_serial_port_data(port);
905 return ti_get_serial_info(tport,
906 (struct serial_struct __user *)arg);
908 return ti_set_serial_info(tty, tport,
909 (struct serial_struct __user *)arg);
915 static void ti_set_termios(struct tty_struct *tty,
916 struct usb_serial_port *port, struct ktermios *old_termios)
918 struct ti_port *tport = usb_get_serial_port_data(port);
919 struct ti_uart_config *config;
922 int port_number = port->port_number;
927 config = kmalloc(sizeof(*config), GFP_KERNEL);
931 /* these flags must be set */
932 wflags |= TI_UART_ENABLE_MS_INTS;
933 wflags |= TI_UART_ENABLE_AUTO_START_DMA;
934 config->bUartMode = tport->tp_uart_mode;
936 switch (C_CSIZE(tty)) {
938 config->bDataBits = TI_UART_5_DATA_BITS;
941 config->bDataBits = TI_UART_6_DATA_BITS;
944 config->bDataBits = TI_UART_7_DATA_BITS;
948 config->bDataBits = TI_UART_8_DATA_BITS;
952 /* CMSPAR isn't supported by this driver */
953 tty->termios.c_cflag &= ~CMSPAR;
957 wflags |= TI_UART_ENABLE_PARITY_CHECKING;
958 config->bParity = TI_UART_ODD_PARITY;
960 wflags |= TI_UART_ENABLE_PARITY_CHECKING;
961 config->bParity = TI_UART_EVEN_PARITY;
964 wflags &= ~TI_UART_ENABLE_PARITY_CHECKING;
965 config->bParity = TI_UART_NO_PARITY;
969 config->bStopBits = TI_UART_2_STOP_BITS;
971 config->bStopBits = TI_UART_1_STOP_BITS;
973 if (C_CRTSCTS(tty)) {
974 /* RTS flow control must be off to drop RTS for baud rate B0 */
975 if ((C_BAUD(tty)) != B0)
976 wflags |= TI_UART_ENABLE_RTS_IN;
977 wflags |= TI_UART_ENABLE_CTS_OUT;
979 ti_restart_read(tport, tty);
982 if (I_IXOFF(tty) || I_IXON(tty)) {
983 config->cXon = START_CHAR(tty);
984 config->cXoff = STOP_CHAR(tty);
987 wflags |= TI_UART_ENABLE_X_IN;
989 ti_restart_read(tport, tty);
992 wflags |= TI_UART_ENABLE_X_OUT;
995 baud = tty_get_baud_rate(tty);
998 if (tport->tp_tdev->td_is_3410)
999 wbaudrate = (923077 + baud/2) / baud;
1001 wbaudrate = (461538 + baud/2) / baud;
1003 /* FIXME: Should calculate resulting baud here and report it back */
1004 if ((C_BAUD(tty)) != B0)
1005 tty_encode_baud_rate(tty, baud, baud);
1008 "%s - BaudRate=%d, wBaudRate=%d, wFlags=0x%04X, bDataBits=%d, bParity=%d, bStopBits=%d, cXon=%d, cXoff=%d, bUartMode=%d\n",
1009 __func__, baud, wbaudrate, wflags,
1010 config->bDataBits, config->bParity, config->bStopBits,
1011 config->cXon, config->cXoff, config->bUartMode);
1013 config->wBaudRate = cpu_to_be16(wbaudrate);
1014 config->wFlags = cpu_to_be16(wflags);
1016 status = ti_command_out_sync(tport->tp_tdev, TI_SET_CONFIG,
1017 (__u8)(TI_UART1_PORT + port_number), 0, (__u8 *)config,
1020 dev_err(&port->dev, "%s - cannot set config on port %d, %d\n",
1021 __func__, port_number, status);
1023 /* SET_CONFIG asserts RTS and DTR, reset them correctly */
1024 mcr = tport->tp_shadow_mcr;
1025 /* if baud rate is B0, clear RTS and DTR */
1026 if (C_BAUD(tty) == B0)
1027 mcr &= ~(TI_MCR_DTR | TI_MCR_RTS);
1028 status = ti_set_mcr(tport, mcr);
1031 "%s - cannot set modem control on port %d, %d\n",
1032 __func__, port_number, status);
1038 static int ti_tiocmget(struct tty_struct *tty)
1040 struct usb_serial_port *port = tty->driver_data;
1041 struct ti_port *tport = usb_get_serial_port_data(port);
1042 unsigned int result;
1045 unsigned long flags;
1047 spin_lock_irqsave(&tport->tp_lock, flags);
1048 msr = tport->tp_msr;
1049 mcr = tport->tp_shadow_mcr;
1050 spin_unlock_irqrestore(&tport->tp_lock, flags);
1052 result = ((mcr & TI_MCR_DTR) ? TIOCM_DTR : 0)
1053 | ((mcr & TI_MCR_RTS) ? TIOCM_RTS : 0)
1054 | ((mcr & TI_MCR_LOOP) ? TIOCM_LOOP : 0)
1055 | ((msr & TI_MSR_CTS) ? TIOCM_CTS : 0)
1056 | ((msr & TI_MSR_CD) ? TIOCM_CAR : 0)
1057 | ((msr & TI_MSR_RI) ? TIOCM_RI : 0)
1058 | ((msr & TI_MSR_DSR) ? TIOCM_DSR : 0);
1060 dev_dbg(&port->dev, "%s - 0x%04X\n", __func__, result);
1066 static int ti_tiocmset(struct tty_struct *tty,
1067 unsigned int set, unsigned int clear)
1069 struct usb_serial_port *port = tty->driver_data;
1070 struct ti_port *tport = usb_get_serial_port_data(port);
1072 unsigned long flags;
1074 spin_lock_irqsave(&tport->tp_lock, flags);
1075 mcr = tport->tp_shadow_mcr;
1077 if (set & TIOCM_RTS)
1079 if (set & TIOCM_DTR)
1081 if (set & TIOCM_LOOP)
1084 if (clear & TIOCM_RTS)
1086 if (clear & TIOCM_DTR)
1088 if (clear & TIOCM_LOOP)
1089 mcr &= ~TI_MCR_LOOP;
1090 spin_unlock_irqrestore(&tport->tp_lock, flags);
1092 return ti_set_mcr(tport, mcr);
1096 static void ti_break(struct tty_struct *tty, int break_state)
1098 struct usb_serial_port *port = tty->driver_data;
1099 struct ti_port *tport = usb_get_serial_port_data(port);
1102 dev_dbg(&port->dev, "%s - state = %d\n", __func__, break_state);
1104 status = ti_write_byte(port, tport->tp_tdev,
1105 tport->tp_uart_base_addr + TI_UART_OFFSET_LCR,
1106 TI_LCR_BREAK, break_state == -1 ? TI_LCR_BREAK : 0);
1109 dev_dbg(&port->dev, "%s - error setting break, %d\n", __func__, status);
1112 static int ti_get_port_from_code(unsigned char code)
1114 return (code >> 6) & 0x01;
1117 static int ti_get_func_from_code(unsigned char code)
1122 static void ti_interrupt_callback(struct urb *urb)
1124 struct ti_device *tdev = urb->context;
1125 struct usb_serial_port *port;
1126 struct usb_serial *serial = tdev->td_serial;
1127 struct ti_port *tport;
1128 struct device *dev = &urb->dev->dev;
1129 unsigned char *data = urb->transfer_buffer;
1130 int length = urb->actual_length;
1133 int status = urb->status;
1143 dev_dbg(dev, "%s - urb shutting down, %d\n", __func__, status);
1146 dev_err(dev, "%s - nonzero urb status, %d\n", __func__, status);
1151 dev_dbg(dev, "%s - bad packet size, %d\n", __func__, length);
1155 if (data[0] == TI_CODE_HARDWARE_ERROR) {
1156 dev_err(dev, "%s - hardware error, %d\n", __func__, data[1]);
1160 port_number = ti_get_port_from_code(data[0]);
1161 function = ti_get_func_from_code(data[0]);
1163 dev_dbg(dev, "%s - port_number %d, function %d, data 0x%02X\n",
1164 __func__, port_number, function, data[1]);
1166 if (port_number >= serial->num_ports) {
1167 dev_err(dev, "%s - bad port number, %d\n",
1168 __func__, port_number);
1172 port = serial->port[port_number];
1174 tport = usb_get_serial_port_data(port);
1179 case TI_CODE_DATA_ERROR:
1180 dev_err(dev, "%s - DATA ERROR, port %d, data 0x%02X\n",
1181 __func__, port_number, data[1]);
1184 case TI_CODE_MODEM_STATUS:
1186 dev_dbg(dev, "%s - port %d, msr 0x%02X\n", __func__, port_number, msr);
1187 ti_handle_new_msr(tport, msr);
1191 dev_err(dev, "%s - unknown interrupt code, 0x%02X\n",
1197 retval = usb_submit_urb(urb, GFP_ATOMIC);
1199 dev_err(dev, "%s - resubmit interrupt urb failed, %d\n",
1204 static void ti_bulk_in_callback(struct urb *urb)
1206 struct ti_port *tport = urb->context;
1207 struct usb_serial_port *port = tport->tp_port;
1208 struct device *dev = &urb->dev->dev;
1209 int status = urb->status;
1218 dev_dbg(dev, "%s - urb shutting down, %d\n", __func__, status);
1221 dev_err(dev, "%s - nonzero urb status, %d\n",
1225 if (status == -EPIPE)
1229 dev_err(dev, "%s - stopping read!\n", __func__);
1233 if (urb->actual_length) {
1234 usb_serial_debug_data(dev, __func__, urb->actual_length,
1235 urb->transfer_buffer);
1237 if (!tport->tp_is_open)
1238 dev_dbg(dev, "%s - port closed, dropping data\n",
1241 ti_recv(port, urb->transfer_buffer, urb->actual_length);
1242 spin_lock(&tport->tp_lock);
1243 port->icount.rx += urb->actual_length;
1244 spin_unlock(&tport->tp_lock);
1248 /* continue to read unless stopping */
1249 spin_lock(&tport->tp_lock);
1250 if (tport->tp_read_urb_state == TI_READ_URB_RUNNING)
1251 retval = usb_submit_urb(urb, GFP_ATOMIC);
1252 else if (tport->tp_read_urb_state == TI_READ_URB_STOPPING)
1253 tport->tp_read_urb_state = TI_READ_URB_STOPPED;
1255 spin_unlock(&tport->tp_lock);
1257 dev_err(dev, "%s - resubmit read urb failed, %d\n",
1262 static void ti_bulk_out_callback(struct urb *urb)
1264 struct ti_port *tport = urb->context;
1265 struct usb_serial_port *port = tport->tp_port;
1266 int status = urb->status;
1268 tport->tp_write_urb_in_use = 0;
1276 dev_dbg(&port->dev, "%s - urb shutting down, %d\n", __func__, status);
1279 dev_err_console(port, "%s - nonzero urb status, %d\n",
1283 /* send any buffered data */
1288 static void ti_recv(struct usb_serial_port *port, unsigned char *data,
1294 cnt = tty_insert_flip_string(&port->port, data, length);
1296 dev_err(&port->dev, "%s - dropping data, %d bytes lost\n",
1297 __func__, length - cnt);
1301 tty_flip_buffer_push(&port->port);
1304 } while (length > 0);
1308 static void ti_send(struct ti_port *tport)
1311 struct usb_serial_port *port = tport->tp_port;
1312 unsigned long flags;
1314 spin_lock_irqsave(&tport->tp_lock, flags);
1316 if (tport->tp_write_urb_in_use)
1319 count = kfifo_out(&port->write_fifo,
1320 port->write_urb->transfer_buffer,
1321 port->bulk_out_size);
1326 tport->tp_write_urb_in_use = 1;
1328 spin_unlock_irqrestore(&tport->tp_lock, flags);
1330 usb_serial_debug_data(&port->dev, __func__, count,
1331 port->write_urb->transfer_buffer);
1333 usb_fill_bulk_urb(port->write_urb, port->serial->dev,
1334 usb_sndbulkpipe(port->serial->dev,
1335 port->bulk_out_endpointAddress),
1336 port->write_urb->transfer_buffer, count,
1337 ti_bulk_out_callback, tport);
1339 result = usb_submit_urb(port->write_urb, GFP_ATOMIC);
1341 dev_err_console(port, "%s - submit write urb failed, %d\n",
1343 tport->tp_write_urb_in_use = 0;
1344 /* TODO: reschedule ti_send */
1346 spin_lock_irqsave(&tport->tp_lock, flags);
1347 port->icount.tx += count;
1348 spin_unlock_irqrestore(&tport->tp_lock, flags);
1351 /* more room in the buffer for new writes, wakeup */
1352 tty_port_tty_wakeup(&port->port);
1356 spin_unlock_irqrestore(&tport->tp_lock, flags);
1361 static int ti_set_mcr(struct ti_port *tport, unsigned int mcr)
1363 unsigned long flags;
1366 status = ti_write_byte(tport->tp_port, tport->tp_tdev,
1367 tport->tp_uart_base_addr + TI_UART_OFFSET_MCR,
1368 TI_MCR_RTS | TI_MCR_DTR | TI_MCR_LOOP, mcr);
1370 spin_lock_irqsave(&tport->tp_lock, flags);
1372 tport->tp_shadow_mcr = mcr;
1373 spin_unlock_irqrestore(&tport->tp_lock, flags);
1379 static int ti_get_lsr(struct ti_port *tport, u8 *lsr)
1382 struct ti_device *tdev = tport->tp_tdev;
1383 struct usb_serial_port *port = tport->tp_port;
1384 int port_number = port->port_number;
1385 struct ti_port_status *data;
1387 size = sizeof(struct ti_port_status);
1388 data = kmalloc(size, GFP_KERNEL);
1392 status = ti_command_in_sync(tdev, TI_GET_PORT_STATUS,
1393 (__u8)(TI_UART1_PORT+port_number), 0, (__u8 *)data, size);
1396 "%s - get port status command failed, %d\n",
1401 dev_dbg(&port->dev, "%s - lsr 0x%02X\n", __func__, data->bLSR);
1411 static int ti_get_serial_info(struct ti_port *tport,
1412 struct serial_struct __user *ret_arg)
1414 struct usb_serial_port *port = tport->tp_port;
1415 struct serial_struct ret_serial;
1418 cwait = port->port.closing_wait;
1419 if (cwait != ASYNC_CLOSING_WAIT_NONE)
1420 cwait = jiffies_to_msecs(cwait) / 10;
1422 memset(&ret_serial, 0, sizeof(ret_serial));
1424 ret_serial.type = PORT_16550A;
1425 ret_serial.line = port->minor;
1426 ret_serial.port = port->port_number;
1427 ret_serial.xmit_fifo_size = kfifo_size(&port->write_fifo);
1428 ret_serial.baud_base = tport->tp_tdev->td_is_3410 ? 921600 : 460800;
1429 ret_serial.closing_wait = cwait;
1431 if (copy_to_user(ret_arg, &ret_serial, sizeof(*ret_arg)))
1438 static int ti_set_serial_info(struct tty_struct *tty, struct ti_port *tport,
1439 struct serial_struct __user *new_arg)
1441 struct serial_struct new_serial;
1444 if (copy_from_user(&new_serial, new_arg, sizeof(new_serial)))
1447 cwait = new_serial.closing_wait;
1448 if (cwait != ASYNC_CLOSING_WAIT_NONE)
1449 cwait = msecs_to_jiffies(10 * new_serial.closing_wait);
1451 tport->tp_port->port.closing_wait = cwait;
1457 static void ti_handle_new_msr(struct ti_port *tport, u8 msr)
1459 struct async_icount *icount;
1460 struct tty_struct *tty;
1461 unsigned long flags;
1463 dev_dbg(&tport->tp_port->dev, "%s - msr 0x%02X\n", __func__, msr);
1465 if (msr & TI_MSR_DELTA_MASK) {
1466 spin_lock_irqsave(&tport->tp_lock, flags);
1467 icount = &tport->tp_port->icount;
1468 if (msr & TI_MSR_DELTA_CTS)
1470 if (msr & TI_MSR_DELTA_DSR)
1472 if (msr & TI_MSR_DELTA_CD)
1474 if (msr & TI_MSR_DELTA_RI)
1476 wake_up_interruptible(&tport->tp_port->port.delta_msr_wait);
1477 spin_unlock_irqrestore(&tport->tp_lock, flags);
1480 tport->tp_msr = msr & TI_MSR_MASK;
1482 /* handle CTS flow control */
1483 tty = tty_port_tty_get(&tport->tp_port->port);
1484 if (tty && C_CRTSCTS(tty)) {
1485 if (msr & TI_MSR_CTS)
1492 static void ti_stop_read(struct ti_port *tport, struct tty_struct *tty)
1494 unsigned long flags;
1496 spin_lock_irqsave(&tport->tp_lock, flags);
1498 if (tport->tp_read_urb_state == TI_READ_URB_RUNNING)
1499 tport->tp_read_urb_state = TI_READ_URB_STOPPING;
1501 spin_unlock_irqrestore(&tport->tp_lock, flags);
1505 static int ti_restart_read(struct ti_port *tport, struct tty_struct *tty)
1509 unsigned long flags;
1511 spin_lock_irqsave(&tport->tp_lock, flags);
1513 if (tport->tp_read_urb_state == TI_READ_URB_STOPPED) {
1514 tport->tp_read_urb_state = TI_READ_URB_RUNNING;
1515 urb = tport->tp_port->read_urb;
1516 spin_unlock_irqrestore(&tport->tp_lock, flags);
1517 urb->context = tport;
1518 status = usb_submit_urb(urb, GFP_KERNEL);
1520 tport->tp_read_urb_state = TI_READ_URB_RUNNING;
1521 spin_unlock_irqrestore(&tport->tp_lock, flags);
1528 static int ti_command_out_sync(struct ti_device *tdev, __u8 command,
1529 __u16 moduleid, __u16 value, __u8 *data, int size)
1533 status = usb_control_msg(tdev->td_serial->dev,
1534 usb_sndctrlpipe(tdev->td_serial->dev, 0), command,
1535 (USB_TYPE_VENDOR | USB_RECIP_DEVICE | USB_DIR_OUT),
1536 value, moduleid, data, size, 1000);
1545 static int ti_command_in_sync(struct ti_device *tdev, __u8 command,
1546 __u16 moduleid, __u16 value, __u8 *data, int size)
1550 status = usb_control_msg(tdev->td_serial->dev,
1551 usb_rcvctrlpipe(tdev->td_serial->dev, 0), command,
1552 (USB_TYPE_VENDOR | USB_RECIP_DEVICE | USB_DIR_IN),
1553 value, moduleid, data, size, 1000);
1557 else if (status >= 0)
1564 static int ti_write_byte(struct usb_serial_port *port,
1565 struct ti_device *tdev, unsigned long addr,
1570 struct ti_write_data_bytes *data;
1572 dev_dbg(&port->dev, "%s - addr 0x%08lX, mask 0x%02X, byte 0x%02X\n", __func__,
1575 size = sizeof(struct ti_write_data_bytes) + 2;
1576 data = kmalloc(size, GFP_KERNEL);
1580 data->bAddrType = TI_RW_DATA_ADDR_XDATA;
1581 data->bDataType = TI_RW_DATA_BYTE;
1582 data->bDataCounter = 1;
1583 data->wBaseAddrHi = cpu_to_be16(addr>>16);
1584 data->wBaseAddrLo = cpu_to_be16(addr);
1585 data->bData[0] = mask;
1586 data->bData[1] = byte;
1588 status = ti_command_out_sync(tdev, TI_WRITE_DATA, TI_RAM_PORT, 0,
1589 (__u8 *)data, size);
1592 dev_err(&port->dev, "%s - failed, %d\n", __func__, status);
1599 static int ti_do_download(struct usb_device *dev, int pipe,
1600 u8 *buffer, int size)
1605 struct ti_firmware_header *header;
1609 for (pos = sizeof(struct ti_firmware_header); pos < size; pos++)
1610 cs = (u8)(cs + buffer[pos]);
1612 header = (struct ti_firmware_header *)buffer;
1613 header->wLength = cpu_to_le16(size - sizeof(*header));
1614 header->bCheckSum = cs;
1616 dev_dbg(&dev->dev, "%s - downloading firmware\n", __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 if (le16_to_cpu(dev->descriptor.idVendor) == MXU1_VENDOR_ID) {
1642 le16_to_cpu(dev->descriptor.idProduct));
1644 status = reject_firmware(&fw_p, buf, &dev->dev);
1645 goto check_firmware;
1648 /* try ID specific firmware first, then try generic firmware */
1649 sprintf(buf, "/*(DEBLOBBED)*/",
1650 le16_to_cpu(dev->descriptor.idVendor),
1651 le16_to_cpu(dev->descriptor.idProduct));
1652 status = reject_firmware(&fw_p, buf, &dev->dev);
1656 if (le16_to_cpu(dev->descriptor.idVendor) == MTS_VENDOR_ID) {
1657 switch (le16_to_cpu(dev->descriptor.idProduct)) {
1658 case MTS_CDMA_PRODUCT_ID:
1659 strcpy(buf, "/*(DEBLOBBED)*/");
1661 case MTS_GSM_PRODUCT_ID:
1662 strcpy(buf, "/*(DEBLOBBED)*/");
1664 case MTS_EDGE_PRODUCT_ID:
1665 strcpy(buf, "/*(DEBLOBBED)*/");
1667 case MTS_MT9234MU_PRODUCT_ID:
1668 strcpy(buf, "/*(DEBLOBBED)*/");
1670 case MTS_MT9234ZBA_PRODUCT_ID:
1671 strcpy(buf, "/*(DEBLOBBED)*/");
1673 case MTS_MT9234ZBAOLD_PRODUCT_ID:
1674 strcpy(buf, "/*(DEBLOBBED)*/");
1677 if (buf[0] == '\0') {
1678 if (tdev->td_is_3410)
1679 strcpy(buf, "/*(DEBLOBBED)*/");
1681 strcpy(buf, "/*(DEBLOBBED)*/");
1683 status = reject_firmware(&fw_p, buf, &dev->dev);
1688 dev_err(&dev->dev, "%s - firmware not found\n", __func__);
1691 if (fw_p->size > TI_FIRMWARE_BUF_SIZE) {
1692 dev_err(&dev->dev, "%s - firmware too large %zu\n", __func__, fw_p->size);
1693 release_firmware(fw_p);
1697 buffer_size = TI_FIRMWARE_BUF_SIZE + sizeof(struct ti_firmware_header);
1698 buffer = kmalloc(buffer_size, GFP_KERNEL);
1700 memcpy(buffer, fw_p->data, fw_p->size);
1701 memset(buffer + fw_p->size, 0xff, buffer_size - fw_p->size);
1702 status = ti_do_download(dev, pipe, buffer, fw_p->size);
1707 release_firmware(fw_p);
1709 dev_err(&dev->dev, "%s - error downloading firmware, %d\n",
1714 dev_dbg(&dev->dev, "%s - download successful\n", __func__);