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,
433 .attach = ti_startup,
434 .release = ti_release,
435 .port_probe = ti_port_probe,
436 .port_remove = ti_port_remove,
440 .write_room = ti_write_room,
441 .chars_in_buffer = ti_chars_in_buffer,
442 .tx_empty = ti_tx_empty,
443 .throttle = ti_throttle,
444 .unthrottle = ti_unthrottle,
446 .set_termios = ti_set_termios,
447 .tiocmget = ti_tiocmget,
448 .tiocmset = ti_tiocmset,
449 .tiocmiwait = usb_serial_generic_tiocmiwait,
450 .get_icount = usb_serial_generic_get_icount,
451 .break_ctl = ti_break,
452 .read_int_callback = ti_interrupt_callback,
453 .read_bulk_callback = ti_bulk_in_callback,
454 .write_bulk_callback = ti_bulk_out_callback,
457 static struct usb_serial_driver ti_2port_device = {
459 .owner = THIS_MODULE,
460 .name = "ti_usb_3410_5052_2",
462 .description = "TI USB 5052 2 port adapter",
463 .id_table = ti_id_table_5052,
465 .attach = ti_startup,
466 .release = ti_release,
467 .port_probe = ti_port_probe,
468 .port_remove = ti_port_remove,
472 .write_room = ti_write_room,
473 .chars_in_buffer = ti_chars_in_buffer,
474 .tx_empty = ti_tx_empty,
475 .throttle = ti_throttle,
476 .unthrottle = ti_unthrottle,
478 .set_termios = ti_set_termios,
479 .tiocmget = ti_tiocmget,
480 .tiocmset = ti_tiocmset,
481 .tiocmiwait = usb_serial_generic_tiocmiwait,
482 .get_icount = usb_serial_generic_get_icount,
483 .break_ctl = ti_break,
484 .read_int_callback = ti_interrupt_callback,
485 .read_bulk_callback = ti_bulk_in_callback,
486 .write_bulk_callback = ti_bulk_out_callback,
489 static struct usb_serial_driver * const serial_drivers[] = {
490 &ti_1port_device, &ti_2port_device, NULL
493 MODULE_AUTHOR(TI_DRIVER_AUTHOR);
494 MODULE_DESCRIPTION(TI_DRIVER_DESC);
495 MODULE_LICENSE("GPL");
499 module_param(closing_wait, int, S_IRUGO | S_IWUSR);
500 MODULE_PARM_DESC(closing_wait,
501 "Maximum wait for data to drain in close, in .01 secs, default is 4000");
503 MODULE_DEVICE_TABLE(usb, ti_id_table_combined);
505 module_usb_serial_driver(serial_drivers, ti_id_table_combined);
507 static int ti_startup(struct usb_serial *serial)
509 struct ti_device *tdev;
510 struct usb_device *dev = serial->dev;
511 struct usb_host_interface *cur_altsetting;
517 "%s - product 0x%4X, num configurations %d, configuration value %d\n",
518 __func__, le16_to_cpu(dev->descriptor.idProduct),
519 dev->descriptor.bNumConfigurations,
520 dev->actconfig->desc.bConfigurationValue);
522 tdev = kzalloc(sizeof(struct ti_device), GFP_KERNEL);
526 mutex_init(&tdev->td_open_close_lock);
527 tdev->td_serial = serial;
528 usb_set_serial_data(serial, tdev);
530 /* determine device type */
531 if (serial->type == &ti_1port_device)
532 tdev->td_is_3410 = 1;
533 dev_dbg(&dev->dev, "%s - device type is %s\n", __func__,
534 tdev->td_is_3410 ? "3410" : "5052");
536 vid = le16_to_cpu(dev->descriptor.idVendor);
537 pid = le16_to_cpu(dev->descriptor.idProduct);
538 if (vid == MXU1_VENDOR_ID) {
540 case MXU1_1130_PRODUCT_ID:
541 case MXU1_1131_PRODUCT_ID:
542 tdev->td_rs485_only = true;
547 cur_altsetting = serial->interface->cur_altsetting;
548 num_endpoints = cur_altsetting->desc.bNumEndpoints;
550 /* if we have only 1 configuration and 1 endpoint, download firmware */
551 if (dev->descriptor.bNumConfigurations == 1 && num_endpoints == 1) {
552 status = ti_download_firmware(tdev);
557 /* 3410 must be reset, 5052 resets itself */
558 if (tdev->td_is_3410) {
559 msleep_interruptible(100);
560 usb_reset_device(dev);
567 /* the second configuration must be set */
568 if (dev->actconfig->desc.bConfigurationValue == TI_BOOT_CONFIG) {
569 status = usb_driver_set_configuration(dev, TI_ACTIVE_CONFIG);
570 status = status ? status : -ENODEV;
574 if (serial->num_bulk_in < serial->num_ports ||
575 serial->num_bulk_out < serial->num_ports) {
576 dev_err(&serial->interface->dev, "missing endpoints\n");
585 usb_set_serial_data(serial, NULL);
590 static void ti_release(struct usb_serial *serial)
592 struct ti_device *tdev = usb_get_serial_data(serial);
597 static int ti_port_probe(struct usb_serial_port *port)
599 struct ti_port *tport;
601 tport = kzalloc(sizeof(*tport), GFP_KERNEL);
605 spin_lock_init(&tport->tp_lock);
606 if (port == port->serial->port[0])
607 tport->tp_uart_base_addr = TI_UART1_BASE_ADDR;
609 tport->tp_uart_base_addr = TI_UART2_BASE_ADDR;
610 port->port.closing_wait = msecs_to_jiffies(10 * closing_wait);
611 tport->tp_port = port;
612 tport->tp_tdev = usb_get_serial_data(port->serial);
614 if (tport->tp_tdev->td_rs485_only)
615 tport->tp_uart_mode = TI_UART_485_RECEIVER_DISABLED;
617 tport->tp_uart_mode = TI_UART_232;
619 usb_set_serial_port_data(port, tport);
621 port->port.drain_delay = 3;
626 static int ti_port_remove(struct usb_serial_port *port)
628 struct ti_port *tport;
630 tport = usb_get_serial_port_data(port);
636 static int ti_open(struct tty_struct *tty, struct usb_serial_port *port)
638 struct ti_port *tport = usb_get_serial_port_data(port);
639 struct ti_device *tdev;
640 struct usb_device *dev;
646 open_settings = (TI_PIPE_MODE_CONTINUOUS |
647 TI_PIPE_TIMEOUT_ENABLE |
648 (TI_TRANSFER_TIMEOUT << 2));
650 dev = port->serial->dev;
651 tdev = tport->tp_tdev;
653 /* only one open on any port on a device at a time */
654 if (mutex_lock_interruptible(&tdev->td_open_close_lock))
657 port_number = port->port_number;
660 tport->tp_shadow_mcr |= (TI_MCR_RTS | TI_MCR_DTR);
662 /* start interrupt urb the first time a port is opened on this device */
663 if (tdev->td_open_port_count == 0) {
664 dev_dbg(&port->dev, "%s - start interrupt in urb\n", __func__);
665 urb = tdev->td_serial->port[0]->interrupt_in_urb;
667 dev_err(&port->dev, "%s - no interrupt urb\n", __func__);
672 status = usb_submit_urb(urb, GFP_KERNEL);
674 dev_err(&port->dev, "%s - submit interrupt urb failed, %d\n", __func__, status);
680 ti_set_termios(tty, port, &tty->termios);
682 status = ti_command_out_sync(tdev, TI_OPEN_PORT,
683 (__u8)(TI_UART1_PORT + port_number), open_settings, NULL, 0);
685 dev_err(&port->dev, "%s - cannot send open command, %d\n",
690 status = ti_command_out_sync(tdev, TI_START_PORT,
691 (__u8)(TI_UART1_PORT + port_number), 0, NULL, 0);
693 dev_err(&port->dev, "%s - cannot send start command, %d\n",
698 status = ti_command_out_sync(tdev, TI_PURGE_PORT,
699 (__u8)(TI_UART1_PORT + port_number), TI_PURGE_INPUT, NULL, 0);
701 dev_err(&port->dev, "%s - cannot clear input buffers, %d\n",
705 status = ti_command_out_sync(tdev, TI_PURGE_PORT,
706 (__u8)(TI_UART1_PORT + port_number), TI_PURGE_OUTPUT, NULL, 0);
708 dev_err(&port->dev, "%s - cannot clear output buffers, %d\n",
713 /* reset the data toggle on the bulk endpoints to work around bug in
714 * host controllers where things get out of sync some times */
715 usb_clear_halt(dev, port->write_urb->pipe);
716 usb_clear_halt(dev, port->read_urb->pipe);
719 ti_set_termios(tty, port, &tty->termios);
721 status = ti_command_out_sync(tdev, TI_OPEN_PORT,
722 (__u8)(TI_UART1_PORT + port_number), open_settings, NULL, 0);
724 dev_err(&port->dev, "%s - cannot send open command (2), %d\n",
729 status = ti_command_out_sync(tdev, TI_START_PORT,
730 (__u8)(TI_UART1_PORT + port_number), 0, NULL, 0);
732 dev_err(&port->dev, "%s - cannot send start command (2), %d\n",
738 urb = port->read_urb;
740 dev_err(&port->dev, "%s - no read urb\n", __func__);
744 tport->tp_read_urb_state = TI_READ_URB_RUNNING;
745 urb->context = tport;
746 status = usb_submit_urb(urb, GFP_KERNEL);
748 dev_err(&port->dev, "%s - submit read urb failed, %d\n",
753 tport->tp_is_open = 1;
754 ++tdev->td_open_port_count;
759 if (tdev->td_open_port_count == 0)
760 usb_kill_urb(port->serial->port[0]->interrupt_in_urb);
762 mutex_unlock(&tdev->td_open_close_lock);
767 static void ti_close(struct usb_serial_port *port)
769 struct ti_device *tdev;
770 struct ti_port *tport;
775 tdev = usb_get_serial_data(port->serial);
776 tport = usb_get_serial_port_data(port);
778 tport->tp_is_open = 0;
780 usb_kill_urb(port->read_urb);
781 usb_kill_urb(port->write_urb);
782 tport->tp_write_urb_in_use = 0;
783 spin_lock_irqsave(&tport->tp_lock, flags);
784 kfifo_reset_out(&port->write_fifo);
785 spin_unlock_irqrestore(&tport->tp_lock, flags);
787 port_number = port->port_number;
789 status = ti_command_out_sync(tdev, TI_CLOSE_PORT,
790 (__u8)(TI_UART1_PORT + port_number), 0, NULL, 0);
793 "%s - cannot send close port command, %d\n"
796 mutex_lock(&tdev->td_open_close_lock);
797 --tport->tp_tdev->td_open_port_count;
798 if (tport->tp_tdev->td_open_port_count == 0) {
799 /* last port is closed, shut down interrupt urb */
800 usb_kill_urb(port->serial->port[0]->interrupt_in_urb);
802 mutex_unlock(&tdev->td_open_close_lock);
806 static int ti_write(struct tty_struct *tty, struct usb_serial_port *port,
807 const unsigned char *data, int count)
809 struct ti_port *tport = usb_get_serial_port_data(port);
815 if (!tport->tp_is_open)
818 count = kfifo_in_locked(&port->write_fifo, data, count,
826 static int ti_write_room(struct tty_struct *tty)
828 struct usb_serial_port *port = tty->driver_data;
829 struct ti_port *tport = usb_get_serial_port_data(port);
833 spin_lock_irqsave(&tport->tp_lock, flags);
834 room = kfifo_avail(&port->write_fifo);
835 spin_unlock_irqrestore(&tport->tp_lock, flags);
837 dev_dbg(&port->dev, "%s - returns %d\n", __func__, room);
842 static int ti_chars_in_buffer(struct tty_struct *tty)
844 struct usb_serial_port *port = tty->driver_data;
845 struct ti_port *tport = usb_get_serial_port_data(port);
849 spin_lock_irqsave(&tport->tp_lock, flags);
850 chars = kfifo_len(&port->write_fifo);
851 spin_unlock_irqrestore(&tport->tp_lock, flags);
853 dev_dbg(&port->dev, "%s - returns %d\n", __func__, chars);
857 static bool ti_tx_empty(struct usb_serial_port *port)
859 struct ti_port *tport = usb_get_serial_port_data(port);
863 ret = ti_get_lsr(tport, &lsr);
864 if (!ret && !(lsr & TI_LSR_TX_EMPTY))
870 static void ti_throttle(struct tty_struct *tty)
872 struct usb_serial_port *port = tty->driver_data;
873 struct ti_port *tport = usb_get_serial_port_data(port);
875 if (I_IXOFF(tty) || C_CRTSCTS(tty))
876 ti_stop_read(tport, tty);
881 static void ti_unthrottle(struct tty_struct *tty)
883 struct usb_serial_port *port = tty->driver_data;
884 struct ti_port *tport = usb_get_serial_port_data(port);
887 if (I_IXOFF(tty) || C_CRTSCTS(tty)) {
888 status = ti_restart_read(tport, tty);
890 dev_err(&port->dev, "%s - cannot restart read, %d\n",
895 static int ti_ioctl(struct tty_struct *tty,
896 unsigned int cmd, unsigned long arg)
898 struct usb_serial_port *port = tty->driver_data;
899 struct ti_port *tport = usb_get_serial_port_data(port);
903 return ti_get_serial_info(tport,
904 (struct serial_struct __user *)arg);
906 return ti_set_serial_info(tty, tport,
907 (struct serial_struct __user *)arg);
913 static void ti_set_termios(struct tty_struct *tty,
914 struct usb_serial_port *port, struct ktermios *old_termios)
916 struct ti_port *tport = usb_get_serial_port_data(port);
917 struct ti_uart_config *config;
918 tcflag_t cflag, iflag;
921 int port_number = port->port_number;
926 cflag = tty->termios.c_cflag;
927 iflag = tty->termios.c_iflag;
929 dev_dbg(&port->dev, "%s - cflag %08x, iflag %08x\n", __func__, cflag, iflag);
930 dev_dbg(&port->dev, "%s - old clfag %08x, old iflag %08x\n", __func__,
931 old_termios->c_cflag, old_termios->c_iflag);
933 config = kmalloc(sizeof(*config), GFP_KERNEL);
937 /* these flags must be set */
938 wflags |= TI_UART_ENABLE_MS_INTS;
939 wflags |= TI_UART_ENABLE_AUTO_START_DMA;
940 config->bUartMode = tport->tp_uart_mode;
942 switch (C_CSIZE(tty)) {
944 config->bDataBits = TI_UART_5_DATA_BITS;
947 config->bDataBits = TI_UART_6_DATA_BITS;
950 config->bDataBits = TI_UART_7_DATA_BITS;
954 config->bDataBits = TI_UART_8_DATA_BITS;
958 /* CMSPAR isn't supported by this driver */
959 tty->termios.c_cflag &= ~CMSPAR;
963 wflags |= TI_UART_ENABLE_PARITY_CHECKING;
964 config->bParity = TI_UART_ODD_PARITY;
966 wflags |= TI_UART_ENABLE_PARITY_CHECKING;
967 config->bParity = TI_UART_EVEN_PARITY;
970 wflags &= ~TI_UART_ENABLE_PARITY_CHECKING;
971 config->bParity = TI_UART_NO_PARITY;
975 config->bStopBits = TI_UART_2_STOP_BITS;
977 config->bStopBits = TI_UART_1_STOP_BITS;
979 if (C_CRTSCTS(tty)) {
980 /* RTS flow control must be off to drop RTS for baud rate B0 */
981 if ((C_BAUD(tty)) != B0)
982 wflags |= TI_UART_ENABLE_RTS_IN;
983 wflags |= TI_UART_ENABLE_CTS_OUT;
985 ti_restart_read(tport, tty);
988 if (I_IXOFF(tty) || I_IXON(tty)) {
989 config->cXon = START_CHAR(tty);
990 config->cXoff = STOP_CHAR(tty);
993 wflags |= TI_UART_ENABLE_X_IN;
995 ti_restart_read(tport, tty);
998 wflags |= TI_UART_ENABLE_X_OUT;
1001 baud = tty_get_baud_rate(tty);
1004 if (tport->tp_tdev->td_is_3410)
1005 wbaudrate = (923077 + baud/2) / baud;
1007 wbaudrate = (461538 + baud/2) / baud;
1009 /* FIXME: Should calculate resulting baud here and report it back */
1010 if ((C_BAUD(tty)) != B0)
1011 tty_encode_baud_rate(tty, baud, baud);
1014 "%s - BaudRate=%d, wBaudRate=%d, wFlags=0x%04X, bDataBits=%d, bParity=%d, bStopBits=%d, cXon=%d, cXoff=%d, bUartMode=%d\n",
1015 __func__, baud, wbaudrate, wflags,
1016 config->bDataBits, config->bParity, config->bStopBits,
1017 config->cXon, config->cXoff, config->bUartMode);
1019 config->wBaudRate = cpu_to_be16(wbaudrate);
1020 config->wFlags = cpu_to_be16(wflags);
1022 status = ti_command_out_sync(tport->tp_tdev, TI_SET_CONFIG,
1023 (__u8)(TI_UART1_PORT + port_number), 0, (__u8 *)config,
1026 dev_err(&port->dev, "%s - cannot set config on port %d, %d\n",
1027 __func__, port_number, status);
1029 /* SET_CONFIG asserts RTS and DTR, reset them correctly */
1030 mcr = tport->tp_shadow_mcr;
1031 /* if baud rate is B0, clear RTS and DTR */
1032 if (C_BAUD(tty) == B0)
1033 mcr &= ~(TI_MCR_DTR | TI_MCR_RTS);
1034 status = ti_set_mcr(tport, mcr);
1037 "%s - cannot set modem control on port %d, %d\n",
1038 __func__, port_number, status);
1044 static int ti_tiocmget(struct tty_struct *tty)
1046 struct usb_serial_port *port = tty->driver_data;
1047 struct ti_port *tport = usb_get_serial_port_data(port);
1048 unsigned int result;
1051 unsigned long flags;
1053 spin_lock_irqsave(&tport->tp_lock, flags);
1054 msr = tport->tp_msr;
1055 mcr = tport->tp_shadow_mcr;
1056 spin_unlock_irqrestore(&tport->tp_lock, flags);
1058 result = ((mcr & TI_MCR_DTR) ? TIOCM_DTR : 0)
1059 | ((mcr & TI_MCR_RTS) ? TIOCM_RTS : 0)
1060 | ((mcr & TI_MCR_LOOP) ? TIOCM_LOOP : 0)
1061 | ((msr & TI_MSR_CTS) ? TIOCM_CTS : 0)
1062 | ((msr & TI_MSR_CD) ? TIOCM_CAR : 0)
1063 | ((msr & TI_MSR_RI) ? TIOCM_RI : 0)
1064 | ((msr & TI_MSR_DSR) ? TIOCM_DSR : 0);
1066 dev_dbg(&port->dev, "%s - 0x%04X\n", __func__, result);
1072 static int ti_tiocmset(struct tty_struct *tty,
1073 unsigned int set, unsigned int clear)
1075 struct usb_serial_port *port = tty->driver_data;
1076 struct ti_port *tport = usb_get_serial_port_data(port);
1078 unsigned long flags;
1080 spin_lock_irqsave(&tport->tp_lock, flags);
1081 mcr = tport->tp_shadow_mcr;
1083 if (set & TIOCM_RTS)
1085 if (set & TIOCM_DTR)
1087 if (set & TIOCM_LOOP)
1090 if (clear & TIOCM_RTS)
1092 if (clear & TIOCM_DTR)
1094 if (clear & TIOCM_LOOP)
1095 mcr &= ~TI_MCR_LOOP;
1096 spin_unlock_irqrestore(&tport->tp_lock, flags);
1098 return ti_set_mcr(tport, mcr);
1102 static void ti_break(struct tty_struct *tty, int break_state)
1104 struct usb_serial_port *port = tty->driver_data;
1105 struct ti_port *tport = usb_get_serial_port_data(port);
1108 dev_dbg(&port->dev, "%s - state = %d\n", __func__, break_state);
1110 status = ti_write_byte(port, tport->tp_tdev,
1111 tport->tp_uart_base_addr + TI_UART_OFFSET_LCR,
1112 TI_LCR_BREAK, break_state == -1 ? TI_LCR_BREAK : 0);
1115 dev_dbg(&port->dev, "%s - error setting break, %d\n", __func__, status);
1118 static int ti_get_port_from_code(unsigned char code)
1120 return (code >> 6) & 0x01;
1123 static int ti_get_func_from_code(unsigned char code)
1128 static void ti_interrupt_callback(struct urb *urb)
1130 struct ti_device *tdev = urb->context;
1131 struct usb_serial_port *port;
1132 struct usb_serial *serial = tdev->td_serial;
1133 struct ti_port *tport;
1134 struct device *dev = &urb->dev->dev;
1135 unsigned char *data = urb->transfer_buffer;
1136 int length = urb->actual_length;
1139 int status = urb->status;
1149 dev_dbg(dev, "%s - urb shutting down, %d\n", __func__, status);
1152 dev_err(dev, "%s - nonzero urb status, %d\n", __func__, status);
1157 dev_dbg(dev, "%s - bad packet size, %d\n", __func__, length);
1161 if (data[0] == TI_CODE_HARDWARE_ERROR) {
1162 dev_err(dev, "%s - hardware error, %d\n", __func__, data[1]);
1166 port_number = ti_get_port_from_code(data[0]);
1167 function = ti_get_func_from_code(data[0]);
1169 dev_dbg(dev, "%s - port_number %d, function %d, data 0x%02X\n",
1170 __func__, port_number, function, data[1]);
1172 if (port_number >= serial->num_ports) {
1173 dev_err(dev, "%s - bad port number, %d\n",
1174 __func__, port_number);
1178 port = serial->port[port_number];
1180 tport = usb_get_serial_port_data(port);
1185 case TI_CODE_DATA_ERROR:
1186 dev_err(dev, "%s - DATA ERROR, port %d, data 0x%02X\n",
1187 __func__, port_number, data[1]);
1190 case TI_CODE_MODEM_STATUS:
1192 dev_dbg(dev, "%s - port %d, msr 0x%02X\n", __func__, port_number, msr);
1193 ti_handle_new_msr(tport, msr);
1197 dev_err(dev, "%s - unknown interrupt code, 0x%02X\n",
1203 retval = usb_submit_urb(urb, GFP_ATOMIC);
1205 dev_err(dev, "%s - resubmit interrupt urb failed, %d\n",
1210 static void ti_bulk_in_callback(struct urb *urb)
1212 struct ti_port *tport = urb->context;
1213 struct usb_serial_port *port = tport->tp_port;
1214 struct device *dev = &urb->dev->dev;
1215 int status = urb->status;
1224 dev_dbg(dev, "%s - urb shutting down, %d\n", __func__, status);
1227 dev_err(dev, "%s - nonzero urb status, %d\n",
1231 if (status == -EPIPE)
1235 dev_err(dev, "%s - stopping read!\n", __func__);
1239 if (urb->actual_length) {
1240 usb_serial_debug_data(dev, __func__, urb->actual_length,
1241 urb->transfer_buffer);
1243 if (!tport->tp_is_open)
1244 dev_dbg(dev, "%s - port closed, dropping data\n",
1247 ti_recv(port, urb->transfer_buffer, urb->actual_length);
1248 spin_lock(&tport->tp_lock);
1249 port->icount.rx += urb->actual_length;
1250 spin_unlock(&tport->tp_lock);
1254 /* continue to read unless stopping */
1255 spin_lock(&tport->tp_lock);
1256 if (tport->tp_read_urb_state == TI_READ_URB_RUNNING)
1257 retval = usb_submit_urb(urb, GFP_ATOMIC);
1258 else if (tport->tp_read_urb_state == TI_READ_URB_STOPPING)
1259 tport->tp_read_urb_state = TI_READ_URB_STOPPED;
1261 spin_unlock(&tport->tp_lock);
1263 dev_err(dev, "%s - resubmit read urb failed, %d\n",
1268 static void ti_bulk_out_callback(struct urb *urb)
1270 struct ti_port *tport = urb->context;
1271 struct usb_serial_port *port = tport->tp_port;
1272 int status = urb->status;
1274 tport->tp_write_urb_in_use = 0;
1282 dev_dbg(&port->dev, "%s - urb shutting down, %d\n", __func__, status);
1285 dev_err_console(port, "%s - nonzero urb status, %d\n",
1289 /* send any buffered data */
1294 static void ti_recv(struct usb_serial_port *port, unsigned char *data,
1300 cnt = tty_insert_flip_string(&port->port, data, length);
1302 dev_err(&port->dev, "%s - dropping data, %d bytes lost\n",
1303 __func__, length - cnt);
1307 tty_flip_buffer_push(&port->port);
1310 } while (length > 0);
1314 static void ti_send(struct ti_port *tport)
1317 struct usb_serial_port *port = tport->tp_port;
1318 unsigned long flags;
1320 spin_lock_irqsave(&tport->tp_lock, flags);
1322 if (tport->tp_write_urb_in_use)
1325 count = kfifo_out(&port->write_fifo,
1326 port->write_urb->transfer_buffer,
1327 port->bulk_out_size);
1332 tport->tp_write_urb_in_use = 1;
1334 spin_unlock_irqrestore(&tport->tp_lock, flags);
1336 usb_serial_debug_data(&port->dev, __func__, count,
1337 port->write_urb->transfer_buffer);
1339 usb_fill_bulk_urb(port->write_urb, port->serial->dev,
1340 usb_sndbulkpipe(port->serial->dev,
1341 port->bulk_out_endpointAddress),
1342 port->write_urb->transfer_buffer, count,
1343 ti_bulk_out_callback, tport);
1345 result = usb_submit_urb(port->write_urb, GFP_ATOMIC);
1347 dev_err_console(port, "%s - submit write urb failed, %d\n",
1349 tport->tp_write_urb_in_use = 0;
1350 /* TODO: reschedule ti_send */
1352 spin_lock_irqsave(&tport->tp_lock, flags);
1353 port->icount.tx += count;
1354 spin_unlock_irqrestore(&tport->tp_lock, flags);
1357 /* more room in the buffer for new writes, wakeup */
1358 tty_port_tty_wakeup(&port->port);
1362 spin_unlock_irqrestore(&tport->tp_lock, flags);
1367 static int ti_set_mcr(struct ti_port *tport, unsigned int mcr)
1369 unsigned long flags;
1372 status = ti_write_byte(tport->tp_port, tport->tp_tdev,
1373 tport->tp_uart_base_addr + TI_UART_OFFSET_MCR,
1374 TI_MCR_RTS | TI_MCR_DTR | TI_MCR_LOOP, mcr);
1376 spin_lock_irqsave(&tport->tp_lock, flags);
1378 tport->tp_shadow_mcr = mcr;
1379 spin_unlock_irqrestore(&tport->tp_lock, flags);
1385 static int ti_get_lsr(struct ti_port *tport, u8 *lsr)
1388 struct ti_device *tdev = tport->tp_tdev;
1389 struct usb_serial_port *port = tport->tp_port;
1390 int port_number = port->port_number;
1391 struct ti_port_status *data;
1393 size = sizeof(struct ti_port_status);
1394 data = kmalloc(size, GFP_KERNEL);
1398 status = ti_command_in_sync(tdev, TI_GET_PORT_STATUS,
1399 (__u8)(TI_UART1_PORT+port_number), 0, (__u8 *)data, size);
1402 "%s - get port status command failed, %d\n",
1407 dev_dbg(&port->dev, "%s - lsr 0x%02X\n", __func__, data->bLSR);
1417 static int ti_get_serial_info(struct ti_port *tport,
1418 struct serial_struct __user *ret_arg)
1420 struct usb_serial_port *port = tport->tp_port;
1421 struct serial_struct ret_serial;
1427 cwait = port->port.closing_wait;
1428 if (cwait != ASYNC_CLOSING_WAIT_NONE)
1429 cwait = jiffies_to_msecs(cwait) / 10;
1431 memset(&ret_serial, 0, sizeof(ret_serial));
1433 ret_serial.type = PORT_16550A;
1434 ret_serial.line = port->minor;
1435 ret_serial.port = port->port_number;
1436 ret_serial.xmit_fifo_size = kfifo_size(&port->write_fifo);
1437 ret_serial.baud_base = tport->tp_tdev->td_is_3410 ? 921600 : 460800;
1438 ret_serial.closing_wait = cwait;
1440 if (copy_to_user(ret_arg, &ret_serial, sizeof(*ret_arg)))
1447 static int ti_set_serial_info(struct tty_struct *tty, struct ti_port *tport,
1448 struct serial_struct __user *new_arg)
1450 struct serial_struct new_serial;
1453 if (copy_from_user(&new_serial, new_arg, sizeof(new_serial)))
1456 cwait = new_serial.closing_wait;
1457 if (cwait != ASYNC_CLOSING_WAIT_NONE)
1458 cwait = msecs_to_jiffies(10 * new_serial.closing_wait);
1460 tport->tp_port->port.closing_wait = cwait;
1466 static void ti_handle_new_msr(struct ti_port *tport, u8 msr)
1468 struct async_icount *icount;
1469 struct tty_struct *tty;
1470 unsigned long flags;
1472 dev_dbg(&tport->tp_port->dev, "%s - msr 0x%02X\n", __func__, msr);
1474 if (msr & TI_MSR_DELTA_MASK) {
1475 spin_lock_irqsave(&tport->tp_lock, flags);
1476 icount = &tport->tp_port->icount;
1477 if (msr & TI_MSR_DELTA_CTS)
1479 if (msr & TI_MSR_DELTA_DSR)
1481 if (msr & TI_MSR_DELTA_CD)
1483 if (msr & TI_MSR_DELTA_RI)
1485 wake_up_interruptible(&tport->tp_port->port.delta_msr_wait);
1486 spin_unlock_irqrestore(&tport->tp_lock, flags);
1489 tport->tp_msr = msr & TI_MSR_MASK;
1491 /* handle CTS flow control */
1492 tty = tty_port_tty_get(&tport->tp_port->port);
1493 if (tty && C_CRTSCTS(tty)) {
1494 if (msr & TI_MSR_CTS)
1501 static void ti_stop_read(struct ti_port *tport, struct tty_struct *tty)
1503 unsigned long flags;
1505 spin_lock_irqsave(&tport->tp_lock, flags);
1507 if (tport->tp_read_urb_state == TI_READ_URB_RUNNING)
1508 tport->tp_read_urb_state = TI_READ_URB_STOPPING;
1510 spin_unlock_irqrestore(&tport->tp_lock, flags);
1514 static int ti_restart_read(struct ti_port *tport, struct tty_struct *tty)
1518 unsigned long flags;
1520 spin_lock_irqsave(&tport->tp_lock, flags);
1522 if (tport->tp_read_urb_state == TI_READ_URB_STOPPED) {
1523 tport->tp_read_urb_state = TI_READ_URB_RUNNING;
1524 urb = tport->tp_port->read_urb;
1525 spin_unlock_irqrestore(&tport->tp_lock, flags);
1526 urb->context = tport;
1527 status = usb_submit_urb(urb, GFP_KERNEL);
1529 tport->tp_read_urb_state = TI_READ_URB_RUNNING;
1530 spin_unlock_irqrestore(&tport->tp_lock, flags);
1537 static int ti_command_out_sync(struct ti_device *tdev, __u8 command,
1538 __u16 moduleid, __u16 value, __u8 *data, int size)
1542 status = usb_control_msg(tdev->td_serial->dev,
1543 usb_sndctrlpipe(tdev->td_serial->dev, 0), command,
1544 (USB_TYPE_VENDOR | USB_RECIP_DEVICE | USB_DIR_OUT),
1545 value, moduleid, data, size, 1000);
1554 static int ti_command_in_sync(struct ti_device *tdev, __u8 command,
1555 __u16 moduleid, __u16 value, __u8 *data, int size)
1559 status = usb_control_msg(tdev->td_serial->dev,
1560 usb_rcvctrlpipe(tdev->td_serial->dev, 0), command,
1561 (USB_TYPE_VENDOR | USB_RECIP_DEVICE | USB_DIR_IN),
1562 value, moduleid, data, size, 1000);
1566 else if (status >= 0)
1573 static int ti_write_byte(struct usb_serial_port *port,
1574 struct ti_device *tdev, unsigned long addr,
1579 struct ti_write_data_bytes *data;
1581 dev_dbg(&port->dev, "%s - addr 0x%08lX, mask 0x%02X, byte 0x%02X\n", __func__,
1584 size = sizeof(struct ti_write_data_bytes) + 2;
1585 data = kmalloc(size, GFP_KERNEL);
1589 data->bAddrType = TI_RW_DATA_ADDR_XDATA;
1590 data->bDataType = TI_RW_DATA_BYTE;
1591 data->bDataCounter = 1;
1592 data->wBaseAddrHi = cpu_to_be16(addr>>16);
1593 data->wBaseAddrLo = cpu_to_be16(addr);
1594 data->bData[0] = mask;
1595 data->bData[1] = byte;
1597 status = ti_command_out_sync(tdev, TI_WRITE_DATA, TI_RAM_PORT, 0,
1598 (__u8 *)data, size);
1601 dev_err(&port->dev, "%s - failed, %d\n", __func__, status);
1608 static int ti_do_download(struct usb_device *dev, int pipe,
1609 u8 *buffer, int size)
1614 struct ti_firmware_header *header;
1618 for (pos = sizeof(struct ti_firmware_header); pos < size; pos++)
1619 cs = (u8)(cs + buffer[pos]);
1621 header = (struct ti_firmware_header *)buffer;
1622 header->wLength = cpu_to_le16(size - sizeof(*header));
1623 header->bCheckSum = cs;
1625 dev_dbg(&dev->dev, "%s - downloading firmware\n", __func__);
1626 for (pos = 0; pos < size; pos += done) {
1627 len = min(size - pos, TI_DOWNLOAD_MAX_PACKET_SIZE);
1628 status = usb_bulk_msg(dev, pipe, buffer + pos, len,
1636 static int ti_download_firmware(struct ti_device *tdev)
1641 struct usb_device *dev = tdev->td_serial->dev;
1642 unsigned int pipe = usb_sndbulkpipe(dev,
1643 tdev->td_serial->port[0]->bulk_out_endpointAddress);
1644 const struct firmware *fw_p;
1647 if (le16_to_cpu(dev->descriptor.idVendor) == MXU1_VENDOR_ID) {
1651 le16_to_cpu(dev->descriptor.idProduct));
1653 status = reject_firmware(&fw_p, buf, &dev->dev);
1654 goto check_firmware;
1657 /* try ID specific firmware first, then try generic firmware */
1658 sprintf(buf, "/*(DEBLOBBED)*/",
1659 le16_to_cpu(dev->descriptor.idVendor),
1660 le16_to_cpu(dev->descriptor.idProduct));
1661 status = reject_firmware(&fw_p, buf, &dev->dev);
1665 if (le16_to_cpu(dev->descriptor.idVendor) == MTS_VENDOR_ID) {
1666 switch (le16_to_cpu(dev->descriptor.idProduct)) {
1667 case MTS_CDMA_PRODUCT_ID:
1668 strcpy(buf, "/*(DEBLOBBED)*/");
1670 case MTS_GSM_PRODUCT_ID:
1671 strcpy(buf, "/*(DEBLOBBED)*/");
1673 case MTS_EDGE_PRODUCT_ID:
1674 strcpy(buf, "/*(DEBLOBBED)*/");
1676 case MTS_MT9234MU_PRODUCT_ID:
1677 strcpy(buf, "/*(DEBLOBBED)*/");
1679 case MTS_MT9234ZBA_PRODUCT_ID:
1680 strcpy(buf, "/*(DEBLOBBED)*/");
1682 case MTS_MT9234ZBAOLD_PRODUCT_ID:
1683 strcpy(buf, "/*(DEBLOBBED)*/");
1686 if (buf[0] == '\0') {
1687 if (tdev->td_is_3410)
1688 strcpy(buf, "/*(DEBLOBBED)*/");
1690 strcpy(buf, "/*(DEBLOBBED)*/");
1692 status = reject_firmware(&fw_p, buf, &dev->dev);
1697 dev_err(&dev->dev, "%s - firmware not found\n", __func__);
1700 if (fw_p->size > TI_FIRMWARE_BUF_SIZE) {
1701 dev_err(&dev->dev, "%s - firmware too large %zu\n", __func__, fw_p->size);
1702 release_firmware(fw_p);
1706 buffer_size = TI_FIRMWARE_BUF_SIZE + sizeof(struct ti_firmware_header);
1707 buffer = kmalloc(buffer_size, GFP_KERNEL);
1709 memcpy(buffer, fw_p->data, fw_p->size);
1710 memset(buffer + fw_p->size, 0xff, buffer_size - fw_p->size);
1711 status = ti_do_download(dev, pipe, buffer, fw_p->size);
1716 release_firmware(fw_p);
1718 dev_err(&dev->dev, "%s - error downloading firmware, %d\n",
1723 dev_dbg(&dev->dev, "%s - download successful\n", __func__);