1 // SPDX-License-Identifier: GPL-2.0+
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 * For questions or problems with this driver, contact Texas Instruments
12 * technical support, or Al Borchers <alborchers@steinerpoint.com>, or
13 * Peter Berger <pberger@brimson.com>.
16 #include <linux/kernel.h>
17 #include <linux/errno.h>
18 #include <linux/firmware.h>
19 #include <linux/slab.h>
20 #include <linux/tty.h>
21 #include <linux/tty_driver.h>
22 #include <linux/tty_flip.h>
23 #include <linux/module.h>
24 #include <linux/spinlock.h>
25 #include <linux/ioctl.h>
26 #include <linux/serial.h>
27 #include <linux/kfifo.h>
28 #include <linux/mutex.h>
29 #include <linux/uaccess.h>
30 #include <linux/usb.h>
31 #include <linux/usb/serial.h>
33 /* Configuration ids */
34 #define TI_BOOT_CONFIG 1
35 #define TI_ACTIVE_CONFIG 2
37 /* Vendor and product ids */
38 #define TI_VENDOR_ID 0x0451
39 #define IBM_VENDOR_ID 0x04b3
40 #define TI_3410_PRODUCT_ID 0x3410
41 #define IBM_4543_PRODUCT_ID 0x4543
42 #define IBM_454B_PRODUCT_ID 0x454b
43 #define IBM_454C_PRODUCT_ID 0x454c
44 #define TI_3410_EZ430_ID 0xF430 /* TI ez430 development tool */
45 #define TI_5052_BOOT_PRODUCT_ID 0x5052 /* no EEPROM, no firmware */
46 #define TI_5152_BOOT_PRODUCT_ID 0x5152 /* no EEPROM, no firmware */
47 #define TI_5052_EEPROM_PRODUCT_ID 0x505A /* EEPROM, no firmware */
48 #define TI_5052_FIRMWARE_PRODUCT_ID 0x505F /* firmware is running */
49 #define FRI2_PRODUCT_ID 0x5053 /* Fish River Island II */
51 /* Multi-Tech vendor and product ids */
52 #define MTS_VENDOR_ID 0x06E0
53 #define MTS_GSM_NO_FW_PRODUCT_ID 0xF108
54 #define MTS_CDMA_NO_FW_PRODUCT_ID 0xF109
55 #define MTS_CDMA_PRODUCT_ID 0xF110
56 #define MTS_GSM_PRODUCT_ID 0xF111
57 #define MTS_EDGE_PRODUCT_ID 0xF112
58 #define MTS_MT9234MU_PRODUCT_ID 0xF114
59 #define MTS_MT9234ZBA_PRODUCT_ID 0xF115
60 #define MTS_MT9234ZBAOLD_PRODUCT_ID 0x0319
62 /* Abbott Diabetics vendor and product ids */
63 #define ABBOTT_VENDOR_ID 0x1a61
64 #define ABBOTT_STEREO_PLUG_ID 0x3410
65 #define ABBOTT_PRODUCT_ID ABBOTT_STEREO_PLUG_ID
66 #define ABBOTT_STRIP_PORT_ID 0x3420
68 /* Honeywell vendor and product IDs */
69 #define HONEYWELL_VENDOR_ID 0x10ac
70 #define HONEYWELL_HGI80_PRODUCT_ID 0x0102 /* Honeywell HGI80 */
72 /* Moxa UPORT 11x0 vendor and product IDs */
73 #define MXU1_VENDOR_ID 0x110a
74 #define MXU1_1110_PRODUCT_ID 0x1110
75 #define MXU1_1130_PRODUCT_ID 0x1130
76 #define MXU1_1150_PRODUCT_ID 0x1150
77 #define MXU1_1151_PRODUCT_ID 0x1151
78 #define MXU1_1131_PRODUCT_ID 0x1131
81 #define TI_GET_VERSION 0x01
82 #define TI_GET_PORT_STATUS 0x02
83 #define TI_GET_PORT_DEV_INFO 0x03
84 #define TI_GET_CONFIG 0x04
85 #define TI_SET_CONFIG 0x05
86 #define TI_OPEN_PORT 0x06
87 #define TI_CLOSE_PORT 0x07
88 #define TI_START_PORT 0x08
89 #define TI_STOP_PORT 0x09
90 #define TI_TEST_PORT 0x0A
91 #define TI_PURGE_PORT 0x0B
92 #define TI_RESET_EXT_DEVICE 0x0C
93 #define TI_WRITE_DATA 0x80
94 #define TI_READ_DATA 0x81
95 #define TI_REQ_TYPE_CLASS 0x82
97 /* Module identifiers */
98 #define TI_I2C_PORT 0x01
99 #define TI_IEEE1284_PORT 0x02
100 #define TI_UART1_PORT 0x03
101 #define TI_UART2_PORT 0x04
102 #define TI_RAM_PORT 0x05
105 #define TI_MSR_DELTA_CTS 0x01
106 #define TI_MSR_DELTA_DSR 0x02
107 #define TI_MSR_DELTA_RI 0x04
108 #define TI_MSR_DELTA_CD 0x08
109 #define TI_MSR_CTS 0x10
110 #define TI_MSR_DSR 0x20
111 #define TI_MSR_RI 0x40
112 #define TI_MSR_CD 0x80
113 #define TI_MSR_DELTA_MASK 0x0F
114 #define TI_MSR_MASK 0xF0
117 #define TI_LSR_OVERRUN_ERROR 0x01
118 #define TI_LSR_PARITY_ERROR 0x02
119 #define TI_LSR_FRAMING_ERROR 0x04
120 #define TI_LSR_BREAK 0x08
121 #define TI_LSR_ERROR 0x0F
122 #define TI_LSR_RX_FULL 0x10
123 #define TI_LSR_TX_EMPTY 0x20
126 #define TI_LCR_BREAK 0x40
129 #define TI_MCR_LOOP 0x04
130 #define TI_MCR_DTR 0x10
131 #define TI_MCR_RTS 0x20
134 #define TI_UART_ENABLE_RTS_IN 0x0001
135 #define TI_UART_DISABLE_RTS 0x0002
136 #define TI_UART_ENABLE_PARITY_CHECKING 0x0008
137 #define TI_UART_ENABLE_DSR_OUT 0x0010
138 #define TI_UART_ENABLE_CTS_OUT 0x0020
139 #define TI_UART_ENABLE_X_OUT 0x0040
140 #define TI_UART_ENABLE_XA_OUT 0x0080
141 #define TI_UART_ENABLE_X_IN 0x0100
142 #define TI_UART_ENABLE_DTR_IN 0x0800
143 #define TI_UART_DISABLE_DTR 0x1000
144 #define TI_UART_ENABLE_MS_INTS 0x2000
145 #define TI_UART_ENABLE_AUTO_START_DMA 0x4000
148 #define TI_UART_NO_PARITY 0x00
149 #define TI_UART_ODD_PARITY 0x01
150 #define TI_UART_EVEN_PARITY 0x02
151 #define TI_UART_MARK_PARITY 0x03
152 #define TI_UART_SPACE_PARITY 0x04
155 #define TI_UART_1_STOP_BITS 0x00
156 #define TI_UART_1_5_STOP_BITS 0x01
157 #define TI_UART_2_STOP_BITS 0x02
159 /* Bits per character */
160 #define TI_UART_5_DATA_BITS 0x00
161 #define TI_UART_6_DATA_BITS 0x01
162 #define TI_UART_7_DATA_BITS 0x02
163 #define TI_UART_8_DATA_BITS 0x03
166 #define TI_UART_232 0x00
167 #define TI_UART_485_RECEIVER_DISABLED 0x01
168 #define TI_UART_485_RECEIVER_ENABLED 0x02
170 /* Pipe transfer mode and timeout */
171 #define TI_PIPE_MODE_CONTINUOUS 0x01
172 #define TI_PIPE_MODE_MASK 0x03
173 #define TI_PIPE_TIMEOUT_MASK 0x7C
174 #define TI_PIPE_TIMEOUT_ENABLE 0x80
177 struct ti_uart_config {
188 /* Get port status */
189 struct ti_port_status {
198 #define TI_PURGE_OUTPUT 0x00
199 #define TI_PURGE_INPUT 0x80
201 /* Read/Write data */
202 #define TI_RW_DATA_ADDR_SFR 0x10
203 #define TI_RW_DATA_ADDR_IDATA 0x20
204 #define TI_RW_DATA_ADDR_XDATA 0x30
205 #define TI_RW_DATA_ADDR_CODE 0x40
206 #define TI_RW_DATA_ADDR_GPIO 0x50
207 #define TI_RW_DATA_ADDR_I2C 0x60
208 #define TI_RW_DATA_ADDR_FLASH 0x70
209 #define TI_RW_DATA_ADDR_DSP 0x80
211 #define TI_RW_DATA_UNSPECIFIED 0x00
212 #define TI_RW_DATA_BYTE 0x01
213 #define TI_RW_DATA_WORD 0x02
214 #define TI_RW_DATA_DOUBLE_WORD 0x04
216 struct ti_write_data_bytes {
225 struct ti_read_data_request {
233 struct ti_read_data_bytes {
240 /* Interrupt struct */
241 struct ti_interrupt {
246 /* Interrupt codes */
247 #define TI_CODE_HARDWARE_ERROR 0xFF
248 #define TI_CODE_DATA_ERROR 0x03
249 #define TI_CODE_MODEM_STATUS 0x04
251 /* Download firmware max packet size */
252 #define TI_DOWNLOAD_MAX_PACKET_SIZE 64
254 /* Firmware image header */
255 struct ti_firmware_header {
261 #define TI_UART1_BASE_ADDR 0xFFA0 /* UART 1 base address */
262 #define TI_UART2_BASE_ADDR 0xFFB0 /* UART 2 base address */
263 #define TI_UART_OFFSET_LCR 0x0002 /* UART MCR register offset */
264 #define TI_UART_OFFSET_MCR 0x0004 /* UART MCR register offset */
266 #define TI_DRIVER_AUTHOR "Al Borchers <alborchers@steinerpoint.com>"
267 #define TI_DRIVER_DESC "TI USB 3410/5052 Serial Driver"
269 #define TI_FIRMWARE_BUF_SIZE 16284
271 #define TI_TRANSFER_TIMEOUT 2
273 #define TI_DEFAULT_CLOSING_WAIT 4000 /* in .01 secs */
275 /* read urb states */
276 #define TI_READ_URB_RUNNING 0
277 #define TI_READ_URB_STOPPING 1
278 #define TI_READ_URB_STOPPED 2
280 #define TI_EXTRA_VID_PID_COUNT 5
286 u8 tp_uart_mode; /* 232 or 485 modes */
287 unsigned int tp_uart_base_addr;
288 struct ti_device *tp_tdev;
289 struct usb_serial_port *tp_port;
291 int tp_read_urb_state;
292 int tp_write_urb_in_use;
296 struct mutex td_open_close_lock;
297 int td_open_port_count;
298 struct usb_serial *td_serial;
303 static int ti_startup(struct usb_serial *serial);
304 static void ti_release(struct usb_serial *serial);
305 static int ti_port_probe(struct usb_serial_port *port);
306 static int ti_port_remove(struct usb_serial_port *port);
307 static int ti_open(struct tty_struct *tty, struct usb_serial_port *port);
308 static void ti_close(struct usb_serial_port *port);
309 static int ti_write(struct tty_struct *tty, struct usb_serial_port *port,
310 const unsigned char *data, int count);
311 static int ti_write_room(struct tty_struct *tty);
312 static int ti_chars_in_buffer(struct tty_struct *tty);
313 static bool ti_tx_empty(struct usb_serial_port *port);
314 static void ti_throttle(struct tty_struct *tty);
315 static void ti_unthrottle(struct tty_struct *tty);
316 static int ti_ioctl(struct tty_struct *tty,
317 unsigned int cmd, unsigned long arg);
318 static void ti_set_termios(struct tty_struct *tty,
319 struct usb_serial_port *port, struct ktermios *old_termios);
320 static int ti_tiocmget(struct tty_struct *tty);
321 static int ti_tiocmset(struct tty_struct *tty,
322 unsigned int set, unsigned int clear);
323 static void ti_break(struct tty_struct *tty, int break_state);
324 static void ti_interrupt_callback(struct urb *urb);
325 static void ti_bulk_in_callback(struct urb *urb);
326 static void ti_bulk_out_callback(struct urb *urb);
328 static void ti_recv(struct usb_serial_port *port, unsigned char *data,
330 static void ti_send(struct ti_port *tport);
331 static int ti_set_mcr(struct ti_port *tport, unsigned int mcr);
332 static int ti_get_lsr(struct ti_port *tport, u8 *lsr);
333 static int ti_get_serial_info(struct ti_port *tport,
334 struct serial_struct __user *ret_arg);
335 static int ti_set_serial_info(struct tty_struct *tty, struct ti_port *tport,
336 struct serial_struct __user *new_arg);
337 static void ti_handle_new_msr(struct ti_port *tport, u8 msr);
339 static void ti_stop_read(struct ti_port *tport, struct tty_struct *tty);
340 static int ti_restart_read(struct ti_port *tport, struct tty_struct *tty);
342 static int ti_command_out_sync(struct ti_device *tdev, __u8 command,
343 __u16 moduleid, __u16 value, __u8 *data, int size);
344 static int ti_command_in_sync(struct ti_device *tdev, __u8 command,
345 __u16 moduleid, __u16 value, __u8 *data, int size);
347 static int ti_write_byte(struct usb_serial_port *port, struct ti_device *tdev,
348 unsigned long addr, u8 mask, u8 byte);
350 static int ti_download_firmware(struct ti_device *tdev);
352 static int closing_wait = TI_DEFAULT_CLOSING_WAIT;
354 static const struct usb_device_id ti_id_table_3410[] = {
355 { USB_DEVICE(TI_VENDOR_ID, TI_3410_PRODUCT_ID) },
356 { USB_DEVICE(TI_VENDOR_ID, TI_3410_EZ430_ID) },
357 { USB_DEVICE(MTS_VENDOR_ID, MTS_GSM_NO_FW_PRODUCT_ID) },
358 { USB_DEVICE(MTS_VENDOR_ID, MTS_CDMA_NO_FW_PRODUCT_ID) },
359 { USB_DEVICE(MTS_VENDOR_ID, MTS_CDMA_PRODUCT_ID) },
360 { USB_DEVICE(MTS_VENDOR_ID, MTS_GSM_PRODUCT_ID) },
361 { USB_DEVICE(MTS_VENDOR_ID, MTS_EDGE_PRODUCT_ID) },
362 { USB_DEVICE(MTS_VENDOR_ID, MTS_MT9234MU_PRODUCT_ID) },
363 { USB_DEVICE(MTS_VENDOR_ID, MTS_MT9234ZBA_PRODUCT_ID) },
364 { USB_DEVICE(MTS_VENDOR_ID, MTS_MT9234ZBAOLD_PRODUCT_ID) },
365 { USB_DEVICE(IBM_VENDOR_ID, IBM_4543_PRODUCT_ID) },
366 { USB_DEVICE(IBM_VENDOR_ID, IBM_454B_PRODUCT_ID) },
367 { USB_DEVICE(IBM_VENDOR_ID, IBM_454C_PRODUCT_ID) },
368 { USB_DEVICE(ABBOTT_VENDOR_ID, ABBOTT_STEREO_PLUG_ID) },
369 { USB_DEVICE(ABBOTT_VENDOR_ID, ABBOTT_STRIP_PORT_ID) },
370 { USB_DEVICE(TI_VENDOR_ID, FRI2_PRODUCT_ID) },
371 { USB_DEVICE(HONEYWELL_VENDOR_ID, HONEYWELL_HGI80_PRODUCT_ID) },
372 { USB_DEVICE(MXU1_VENDOR_ID, MXU1_1110_PRODUCT_ID) },
373 { USB_DEVICE(MXU1_VENDOR_ID, MXU1_1130_PRODUCT_ID) },
374 { USB_DEVICE(MXU1_VENDOR_ID, MXU1_1131_PRODUCT_ID) },
375 { USB_DEVICE(MXU1_VENDOR_ID, MXU1_1150_PRODUCT_ID) },
376 { USB_DEVICE(MXU1_VENDOR_ID, MXU1_1151_PRODUCT_ID) },
380 static const struct usb_device_id ti_id_table_5052[] = {
381 { USB_DEVICE(TI_VENDOR_ID, TI_5052_BOOT_PRODUCT_ID) },
382 { USB_DEVICE(TI_VENDOR_ID, TI_5152_BOOT_PRODUCT_ID) },
383 { USB_DEVICE(TI_VENDOR_ID, TI_5052_EEPROM_PRODUCT_ID) },
384 { USB_DEVICE(TI_VENDOR_ID, TI_5052_FIRMWARE_PRODUCT_ID) },
388 static const struct usb_device_id ti_id_table_combined[] = {
389 { USB_DEVICE(TI_VENDOR_ID, TI_3410_PRODUCT_ID) },
390 { USB_DEVICE(TI_VENDOR_ID, TI_3410_EZ430_ID) },
391 { USB_DEVICE(MTS_VENDOR_ID, MTS_GSM_NO_FW_PRODUCT_ID) },
392 { USB_DEVICE(MTS_VENDOR_ID, MTS_CDMA_NO_FW_PRODUCT_ID) },
393 { USB_DEVICE(MTS_VENDOR_ID, MTS_CDMA_PRODUCT_ID) },
394 { USB_DEVICE(MTS_VENDOR_ID, MTS_GSM_PRODUCT_ID) },
395 { USB_DEVICE(MTS_VENDOR_ID, MTS_EDGE_PRODUCT_ID) },
396 { USB_DEVICE(MTS_VENDOR_ID, MTS_MT9234MU_PRODUCT_ID) },
397 { USB_DEVICE(MTS_VENDOR_ID, MTS_MT9234ZBA_PRODUCT_ID) },
398 { USB_DEVICE(MTS_VENDOR_ID, MTS_MT9234ZBAOLD_PRODUCT_ID) },
399 { USB_DEVICE(TI_VENDOR_ID, TI_5052_BOOT_PRODUCT_ID) },
400 { USB_DEVICE(TI_VENDOR_ID, TI_5152_BOOT_PRODUCT_ID) },
401 { USB_DEVICE(TI_VENDOR_ID, TI_5052_EEPROM_PRODUCT_ID) },
402 { USB_DEVICE(TI_VENDOR_ID, TI_5052_FIRMWARE_PRODUCT_ID) },
403 { USB_DEVICE(IBM_VENDOR_ID, IBM_4543_PRODUCT_ID) },
404 { USB_DEVICE(IBM_VENDOR_ID, IBM_454B_PRODUCT_ID) },
405 { USB_DEVICE(IBM_VENDOR_ID, IBM_454C_PRODUCT_ID) },
406 { USB_DEVICE(ABBOTT_VENDOR_ID, ABBOTT_PRODUCT_ID) },
407 { USB_DEVICE(ABBOTT_VENDOR_ID, ABBOTT_STRIP_PORT_ID) },
408 { USB_DEVICE(TI_VENDOR_ID, FRI2_PRODUCT_ID) },
409 { USB_DEVICE(HONEYWELL_VENDOR_ID, HONEYWELL_HGI80_PRODUCT_ID) },
410 { USB_DEVICE(MXU1_VENDOR_ID, MXU1_1110_PRODUCT_ID) },
411 { USB_DEVICE(MXU1_VENDOR_ID, MXU1_1130_PRODUCT_ID) },
412 { USB_DEVICE(MXU1_VENDOR_ID, MXU1_1131_PRODUCT_ID) },
413 { USB_DEVICE(MXU1_VENDOR_ID, MXU1_1150_PRODUCT_ID) },
414 { USB_DEVICE(MXU1_VENDOR_ID, MXU1_1151_PRODUCT_ID) },
418 static struct usb_serial_driver ti_1port_device = {
420 .owner = THIS_MODULE,
421 .name = "ti_usb_3410_5052_1",
423 .description = "TI USB 3410 1 port adapter",
424 .id_table = ti_id_table_3410,
427 .attach = ti_startup,
428 .release = ti_release,
429 .port_probe = ti_port_probe,
430 .port_remove = ti_port_remove,
434 .write_room = ti_write_room,
435 .chars_in_buffer = ti_chars_in_buffer,
436 .tx_empty = ti_tx_empty,
437 .throttle = ti_throttle,
438 .unthrottle = ti_unthrottle,
440 .set_termios = ti_set_termios,
441 .tiocmget = ti_tiocmget,
442 .tiocmset = ti_tiocmset,
443 .tiocmiwait = usb_serial_generic_tiocmiwait,
444 .get_icount = usb_serial_generic_get_icount,
445 .break_ctl = ti_break,
446 .read_int_callback = ti_interrupt_callback,
447 .read_bulk_callback = ti_bulk_in_callback,
448 .write_bulk_callback = ti_bulk_out_callback,
451 static struct usb_serial_driver ti_2port_device = {
453 .owner = THIS_MODULE,
454 .name = "ti_usb_3410_5052_2",
456 .description = "TI USB 5052 2 port adapter",
457 .id_table = ti_id_table_5052,
460 .attach = ti_startup,
461 .release = ti_release,
462 .port_probe = ti_port_probe,
463 .port_remove = ti_port_remove,
467 .write_room = ti_write_room,
468 .chars_in_buffer = ti_chars_in_buffer,
469 .tx_empty = ti_tx_empty,
470 .throttle = ti_throttle,
471 .unthrottle = ti_unthrottle,
473 .set_termios = ti_set_termios,
474 .tiocmget = ti_tiocmget,
475 .tiocmset = ti_tiocmset,
476 .tiocmiwait = usb_serial_generic_tiocmiwait,
477 .get_icount = usb_serial_generic_get_icount,
478 .break_ctl = ti_break,
479 .read_int_callback = ti_interrupt_callback,
480 .read_bulk_callback = ti_bulk_in_callback,
481 .write_bulk_callback = ti_bulk_out_callback,
484 static struct usb_serial_driver * const serial_drivers[] = {
485 &ti_1port_device, &ti_2port_device, NULL
488 MODULE_AUTHOR(TI_DRIVER_AUTHOR);
489 MODULE_DESCRIPTION(TI_DRIVER_DESC);
490 MODULE_LICENSE("GPL");
492 MODULE_FIRMWARE("ti_3410.fw");
493 MODULE_FIRMWARE("ti_5052.fw");
494 MODULE_FIRMWARE("mts_cdma.fw");
495 MODULE_FIRMWARE("mts_gsm.fw");
496 MODULE_FIRMWARE("mts_edge.fw");
497 MODULE_FIRMWARE("mts_mt9234mu.fw");
498 MODULE_FIRMWARE("mts_mt9234zba.fw");
499 MODULE_FIRMWARE("moxa/moxa-1110.fw");
500 MODULE_FIRMWARE("moxa/moxa-1130.fw");
501 MODULE_FIRMWARE("moxa/moxa-1131.fw");
502 MODULE_FIRMWARE("moxa/moxa-1150.fw");
503 MODULE_FIRMWARE("moxa/moxa-1151.fw");
505 module_param(closing_wait, int, S_IRUGO | S_IWUSR);
506 MODULE_PARM_DESC(closing_wait,
507 "Maximum wait for data to drain in close, in .01 secs, default is 4000");
509 MODULE_DEVICE_TABLE(usb, ti_id_table_combined);
511 module_usb_serial_driver(serial_drivers, ti_id_table_combined);
513 static int ti_startup(struct usb_serial *serial)
515 struct ti_device *tdev;
516 struct usb_device *dev = serial->dev;
517 struct usb_host_interface *cur_altsetting;
523 "%s - product 0x%4X, num configurations %d, configuration value %d\n",
524 __func__, le16_to_cpu(dev->descriptor.idProduct),
525 dev->descriptor.bNumConfigurations,
526 dev->actconfig->desc.bConfigurationValue);
528 tdev = kzalloc(sizeof(struct ti_device), GFP_KERNEL);
532 mutex_init(&tdev->td_open_close_lock);
533 tdev->td_serial = serial;
534 usb_set_serial_data(serial, tdev);
536 /* determine device type */
537 if (serial->type == &ti_1port_device)
538 tdev->td_is_3410 = 1;
539 dev_dbg(&dev->dev, "%s - device type is %s\n", __func__,
540 tdev->td_is_3410 ? "3410" : "5052");
542 vid = le16_to_cpu(dev->descriptor.idVendor);
543 pid = le16_to_cpu(dev->descriptor.idProduct);
544 if (vid == MXU1_VENDOR_ID) {
546 case MXU1_1130_PRODUCT_ID:
547 case MXU1_1131_PRODUCT_ID:
548 tdev->td_rs485_only = true;
553 cur_altsetting = serial->interface->cur_altsetting;
554 num_endpoints = cur_altsetting->desc.bNumEndpoints;
556 /* if we have only 1 configuration and 1 endpoint, download firmware */
557 if (dev->descriptor.bNumConfigurations == 1 && num_endpoints == 1) {
558 status = ti_download_firmware(tdev);
563 /* 3410 must be reset, 5052 resets itself */
564 if (tdev->td_is_3410) {
565 msleep_interruptible(100);
566 usb_reset_device(dev);
573 /* the second configuration must be set */
574 if (dev->actconfig->desc.bConfigurationValue == TI_BOOT_CONFIG) {
575 status = usb_driver_set_configuration(dev, TI_ACTIVE_CONFIG);
576 status = status ? status : -ENODEV;
580 if (serial->num_bulk_in < serial->num_ports ||
581 serial->num_bulk_out < serial->num_ports) {
582 dev_err(&serial->interface->dev, "missing endpoints\n");
591 usb_set_serial_data(serial, NULL);
596 static void ti_release(struct usb_serial *serial)
598 struct ti_device *tdev = usb_get_serial_data(serial);
603 static int ti_port_probe(struct usb_serial_port *port)
605 struct ti_port *tport;
607 tport = kzalloc(sizeof(*tport), GFP_KERNEL);
611 spin_lock_init(&tport->tp_lock);
612 if (port == port->serial->port[0])
613 tport->tp_uart_base_addr = TI_UART1_BASE_ADDR;
615 tport->tp_uart_base_addr = TI_UART2_BASE_ADDR;
616 port->port.closing_wait = msecs_to_jiffies(10 * closing_wait);
617 tport->tp_port = port;
618 tport->tp_tdev = usb_get_serial_data(port->serial);
620 if (tport->tp_tdev->td_rs485_only)
621 tport->tp_uart_mode = TI_UART_485_RECEIVER_DISABLED;
623 tport->tp_uart_mode = TI_UART_232;
625 usb_set_serial_port_data(port, tport);
627 port->port.drain_delay = 3;
632 static int ti_port_remove(struct usb_serial_port *port)
634 struct ti_port *tport;
636 tport = usb_get_serial_port_data(port);
642 static int ti_open(struct tty_struct *tty, struct usb_serial_port *port)
644 struct ti_port *tport = usb_get_serial_port_data(port);
645 struct ti_device *tdev;
646 struct usb_device *dev;
652 open_settings = (TI_PIPE_MODE_CONTINUOUS |
653 TI_PIPE_TIMEOUT_ENABLE |
654 (TI_TRANSFER_TIMEOUT << 2));
656 dev = port->serial->dev;
657 tdev = tport->tp_tdev;
659 /* only one open on any port on a device at a time */
660 if (mutex_lock_interruptible(&tdev->td_open_close_lock))
663 port_number = port->port_number;
666 tport->tp_shadow_mcr |= (TI_MCR_RTS | TI_MCR_DTR);
668 /* start interrupt urb the first time a port is opened on this device */
669 if (tdev->td_open_port_count == 0) {
670 dev_dbg(&port->dev, "%s - start interrupt in urb\n", __func__);
671 urb = tdev->td_serial->port[0]->interrupt_in_urb;
673 dev_err(&port->dev, "%s - no interrupt urb\n", __func__);
678 status = usb_submit_urb(urb, GFP_KERNEL);
680 dev_err(&port->dev, "%s - submit interrupt urb failed, %d\n", __func__, status);
686 ti_set_termios(tty, port, &tty->termios);
688 status = ti_command_out_sync(tdev, TI_OPEN_PORT,
689 (__u8)(TI_UART1_PORT + port_number), open_settings, NULL, 0);
691 dev_err(&port->dev, "%s - cannot send open command, %d\n",
696 status = ti_command_out_sync(tdev, TI_START_PORT,
697 (__u8)(TI_UART1_PORT + port_number), 0, NULL, 0);
699 dev_err(&port->dev, "%s - cannot send start command, %d\n",
704 status = ti_command_out_sync(tdev, TI_PURGE_PORT,
705 (__u8)(TI_UART1_PORT + port_number), TI_PURGE_INPUT, NULL, 0);
707 dev_err(&port->dev, "%s - cannot clear input buffers, %d\n",
711 status = ti_command_out_sync(tdev, TI_PURGE_PORT,
712 (__u8)(TI_UART1_PORT + port_number), TI_PURGE_OUTPUT, NULL, 0);
714 dev_err(&port->dev, "%s - cannot clear output buffers, %d\n",
719 /* reset the data toggle on the bulk endpoints to work around bug in
720 * host controllers where things get out of sync some times */
721 usb_clear_halt(dev, port->write_urb->pipe);
722 usb_clear_halt(dev, port->read_urb->pipe);
725 ti_set_termios(tty, port, &tty->termios);
727 status = ti_command_out_sync(tdev, TI_OPEN_PORT,
728 (__u8)(TI_UART1_PORT + port_number), open_settings, NULL, 0);
730 dev_err(&port->dev, "%s - cannot send open command (2), %d\n",
735 status = ti_command_out_sync(tdev, TI_START_PORT,
736 (__u8)(TI_UART1_PORT + port_number), 0, NULL, 0);
738 dev_err(&port->dev, "%s - cannot send start command (2), %d\n",
744 urb = port->read_urb;
746 dev_err(&port->dev, "%s - no read urb\n", __func__);
750 tport->tp_read_urb_state = TI_READ_URB_RUNNING;
751 urb->context = tport;
752 status = usb_submit_urb(urb, GFP_KERNEL);
754 dev_err(&port->dev, "%s - submit read urb failed, %d\n",
759 tport->tp_is_open = 1;
760 ++tdev->td_open_port_count;
765 if (tdev->td_open_port_count == 0)
766 usb_kill_urb(port->serial->port[0]->interrupt_in_urb);
768 mutex_unlock(&tdev->td_open_close_lock);
773 static void ti_close(struct usb_serial_port *port)
775 struct ti_device *tdev;
776 struct ti_port *tport;
782 tdev = usb_get_serial_data(port->serial);
783 tport = usb_get_serial_port_data(port);
785 tport->tp_is_open = 0;
787 usb_kill_urb(port->read_urb);
788 usb_kill_urb(port->write_urb);
789 tport->tp_write_urb_in_use = 0;
790 spin_lock_irqsave(&tport->tp_lock, flags);
791 kfifo_reset_out(&port->write_fifo);
792 spin_unlock_irqrestore(&tport->tp_lock, flags);
794 port_number = port->port_number;
796 status = ti_command_out_sync(tdev, TI_CLOSE_PORT,
797 (__u8)(TI_UART1_PORT + port_number), 0, NULL, 0);
800 "%s - cannot send close port command, %d\n"
803 /* if mutex_lock is interrupted, continue anyway */
804 do_unlock = !mutex_lock_interruptible(&tdev->td_open_close_lock);
805 --tport->tp_tdev->td_open_port_count;
806 if (tport->tp_tdev->td_open_port_count <= 0) {
807 /* last port is closed, shut down interrupt urb */
808 usb_kill_urb(port->serial->port[0]->interrupt_in_urb);
809 tport->tp_tdev->td_open_port_count = 0;
812 mutex_unlock(&tdev->td_open_close_lock);
816 static int ti_write(struct tty_struct *tty, struct usb_serial_port *port,
817 const unsigned char *data, int count)
819 struct ti_port *tport = usb_get_serial_port_data(port);
825 if (!tport->tp_is_open)
828 count = kfifo_in_locked(&port->write_fifo, data, count,
836 static int ti_write_room(struct tty_struct *tty)
838 struct usb_serial_port *port = tty->driver_data;
839 struct ti_port *tport = usb_get_serial_port_data(port);
843 spin_lock_irqsave(&tport->tp_lock, flags);
844 room = kfifo_avail(&port->write_fifo);
845 spin_unlock_irqrestore(&tport->tp_lock, flags);
847 dev_dbg(&port->dev, "%s - returns %d\n", __func__, room);
852 static int ti_chars_in_buffer(struct tty_struct *tty)
854 struct usb_serial_port *port = tty->driver_data;
855 struct ti_port *tport = usb_get_serial_port_data(port);
859 spin_lock_irqsave(&tport->tp_lock, flags);
860 chars = kfifo_len(&port->write_fifo);
861 spin_unlock_irqrestore(&tport->tp_lock, flags);
863 dev_dbg(&port->dev, "%s - returns %d\n", __func__, chars);
867 static bool ti_tx_empty(struct usb_serial_port *port)
869 struct ti_port *tport = usb_get_serial_port_data(port);
873 ret = ti_get_lsr(tport, &lsr);
874 if (!ret && !(lsr & TI_LSR_TX_EMPTY))
880 static void ti_throttle(struct tty_struct *tty)
882 struct usb_serial_port *port = tty->driver_data;
883 struct ti_port *tport = usb_get_serial_port_data(port);
885 if (I_IXOFF(tty) || C_CRTSCTS(tty))
886 ti_stop_read(tport, tty);
891 static void ti_unthrottle(struct tty_struct *tty)
893 struct usb_serial_port *port = tty->driver_data;
894 struct ti_port *tport = usb_get_serial_port_data(port);
897 if (I_IXOFF(tty) || C_CRTSCTS(tty)) {
898 status = ti_restart_read(tport, tty);
900 dev_err(&port->dev, "%s - cannot restart read, %d\n",
905 static int ti_ioctl(struct tty_struct *tty,
906 unsigned int cmd, unsigned long arg)
908 struct usb_serial_port *port = tty->driver_data;
909 struct ti_port *tport = usb_get_serial_port_data(port);
913 return ti_get_serial_info(tport,
914 (struct serial_struct __user *)arg);
916 return ti_set_serial_info(tty, tport,
917 (struct serial_struct __user *)arg);
923 static void ti_set_termios(struct tty_struct *tty,
924 struct usb_serial_port *port, struct ktermios *old_termios)
926 struct ti_port *tport = usb_get_serial_port_data(port);
927 struct ti_uart_config *config;
930 int port_number = port->port_number;
935 config = kmalloc(sizeof(*config), GFP_KERNEL);
939 /* these flags must be set */
940 wflags |= TI_UART_ENABLE_MS_INTS;
941 wflags |= TI_UART_ENABLE_AUTO_START_DMA;
942 config->bUartMode = tport->tp_uart_mode;
944 switch (C_CSIZE(tty)) {
946 config->bDataBits = TI_UART_5_DATA_BITS;
949 config->bDataBits = TI_UART_6_DATA_BITS;
952 config->bDataBits = TI_UART_7_DATA_BITS;
956 config->bDataBits = TI_UART_8_DATA_BITS;
960 /* CMSPAR isn't supported by this driver */
961 tty->termios.c_cflag &= ~CMSPAR;
965 wflags |= TI_UART_ENABLE_PARITY_CHECKING;
966 config->bParity = TI_UART_ODD_PARITY;
968 wflags |= TI_UART_ENABLE_PARITY_CHECKING;
969 config->bParity = TI_UART_EVEN_PARITY;
972 wflags &= ~TI_UART_ENABLE_PARITY_CHECKING;
973 config->bParity = TI_UART_NO_PARITY;
977 config->bStopBits = TI_UART_2_STOP_BITS;
979 config->bStopBits = TI_UART_1_STOP_BITS;
981 if (C_CRTSCTS(tty)) {
982 /* RTS flow control must be off to drop RTS for baud rate B0 */
983 if ((C_BAUD(tty)) != B0)
984 wflags |= TI_UART_ENABLE_RTS_IN;
985 wflags |= TI_UART_ENABLE_CTS_OUT;
987 ti_restart_read(tport, tty);
990 if (I_IXOFF(tty) || I_IXON(tty)) {
991 config->cXon = START_CHAR(tty);
992 config->cXoff = STOP_CHAR(tty);
995 wflags |= TI_UART_ENABLE_X_IN;
997 ti_restart_read(tport, tty);
1000 wflags |= TI_UART_ENABLE_X_OUT;
1003 baud = tty_get_baud_rate(tty);
1006 if (tport->tp_tdev->td_is_3410)
1007 wbaudrate = (923077 + baud/2) / baud;
1009 wbaudrate = (461538 + baud/2) / baud;
1011 /* FIXME: Should calculate resulting baud here and report it back */
1012 if ((C_BAUD(tty)) != B0)
1013 tty_encode_baud_rate(tty, baud, baud);
1016 "%s - BaudRate=%d, wBaudRate=%d, wFlags=0x%04X, bDataBits=%d, bParity=%d, bStopBits=%d, cXon=%d, cXoff=%d, bUartMode=%d\n",
1017 __func__, baud, wbaudrate, wflags,
1018 config->bDataBits, config->bParity, config->bStopBits,
1019 config->cXon, config->cXoff, config->bUartMode);
1021 config->wBaudRate = cpu_to_be16(wbaudrate);
1022 config->wFlags = cpu_to_be16(wflags);
1024 status = ti_command_out_sync(tport->tp_tdev, TI_SET_CONFIG,
1025 (__u8)(TI_UART1_PORT + port_number), 0, (__u8 *)config,
1028 dev_err(&port->dev, "%s - cannot set config on port %d, %d\n",
1029 __func__, port_number, status);
1031 /* SET_CONFIG asserts RTS and DTR, reset them correctly */
1032 mcr = tport->tp_shadow_mcr;
1033 /* if baud rate is B0, clear RTS and DTR */
1034 if (C_BAUD(tty) == B0)
1035 mcr &= ~(TI_MCR_DTR | TI_MCR_RTS);
1036 status = ti_set_mcr(tport, mcr);
1039 "%s - cannot set modem control on port %d, %d\n",
1040 __func__, port_number, status);
1046 static int ti_tiocmget(struct tty_struct *tty)
1048 struct usb_serial_port *port = tty->driver_data;
1049 struct ti_port *tport = usb_get_serial_port_data(port);
1050 unsigned int result;
1053 unsigned long flags;
1055 spin_lock_irqsave(&tport->tp_lock, flags);
1056 msr = tport->tp_msr;
1057 mcr = tport->tp_shadow_mcr;
1058 spin_unlock_irqrestore(&tport->tp_lock, flags);
1060 result = ((mcr & TI_MCR_DTR) ? TIOCM_DTR : 0)
1061 | ((mcr & TI_MCR_RTS) ? TIOCM_RTS : 0)
1062 | ((mcr & TI_MCR_LOOP) ? TIOCM_LOOP : 0)
1063 | ((msr & TI_MSR_CTS) ? TIOCM_CTS : 0)
1064 | ((msr & TI_MSR_CD) ? TIOCM_CAR : 0)
1065 | ((msr & TI_MSR_RI) ? TIOCM_RI : 0)
1066 | ((msr & TI_MSR_DSR) ? TIOCM_DSR : 0);
1068 dev_dbg(&port->dev, "%s - 0x%04X\n", __func__, result);
1074 static int ti_tiocmset(struct tty_struct *tty,
1075 unsigned int set, unsigned int clear)
1077 struct usb_serial_port *port = tty->driver_data;
1078 struct ti_port *tport = usb_get_serial_port_data(port);
1080 unsigned long flags;
1082 spin_lock_irqsave(&tport->tp_lock, flags);
1083 mcr = tport->tp_shadow_mcr;
1085 if (set & TIOCM_RTS)
1087 if (set & TIOCM_DTR)
1089 if (set & TIOCM_LOOP)
1092 if (clear & TIOCM_RTS)
1094 if (clear & TIOCM_DTR)
1096 if (clear & TIOCM_LOOP)
1097 mcr &= ~TI_MCR_LOOP;
1098 spin_unlock_irqrestore(&tport->tp_lock, flags);
1100 return ti_set_mcr(tport, mcr);
1104 static void ti_break(struct tty_struct *tty, int break_state)
1106 struct usb_serial_port *port = tty->driver_data;
1107 struct ti_port *tport = usb_get_serial_port_data(port);
1110 dev_dbg(&port->dev, "%s - state = %d\n", __func__, break_state);
1112 status = ti_write_byte(port, tport->tp_tdev,
1113 tport->tp_uart_base_addr + TI_UART_OFFSET_LCR,
1114 TI_LCR_BREAK, break_state == -1 ? TI_LCR_BREAK : 0);
1117 dev_dbg(&port->dev, "%s - error setting break, %d\n", __func__, status);
1120 static int ti_get_port_from_code(unsigned char code)
1122 return (code >> 4) - 3;
1125 static int ti_get_func_from_code(unsigned char code)
1130 static void ti_interrupt_callback(struct urb *urb)
1132 struct ti_device *tdev = urb->context;
1133 struct usb_serial_port *port;
1134 struct usb_serial *serial = tdev->td_serial;
1135 struct ti_port *tport;
1136 struct device *dev = &urb->dev->dev;
1137 unsigned char *data = urb->transfer_buffer;
1138 int length = urb->actual_length;
1141 int status = urb->status;
1151 dev_dbg(dev, "%s - urb shutting down, %d\n", __func__, status);
1154 dev_err(dev, "%s - nonzero urb status, %d\n", __func__, status);
1159 dev_dbg(dev, "%s - bad packet size, %d\n", __func__, length);
1163 if (data[0] == TI_CODE_HARDWARE_ERROR) {
1164 dev_err(dev, "%s - hardware error, %d\n", __func__, data[1]);
1168 port_number = ti_get_port_from_code(data[0]);
1169 function = ti_get_func_from_code(data[0]);
1171 dev_dbg(dev, "%s - port_number %d, function %d, data 0x%02X\n",
1172 __func__, port_number, function, data[1]);
1174 if (port_number >= serial->num_ports) {
1175 dev_err(dev, "%s - bad port number, %d\n",
1176 __func__, port_number);
1180 port = serial->port[port_number];
1182 tport = usb_get_serial_port_data(port);
1187 case TI_CODE_DATA_ERROR:
1188 dev_err(dev, "%s - DATA ERROR, port %d, data 0x%02X\n",
1189 __func__, port_number, data[1]);
1192 case TI_CODE_MODEM_STATUS:
1194 dev_dbg(dev, "%s - port %d, msr 0x%02X\n", __func__, port_number, msr);
1195 ti_handle_new_msr(tport, msr);
1199 dev_err(dev, "%s - unknown interrupt code, 0x%02X\n",
1205 retval = usb_submit_urb(urb, GFP_ATOMIC);
1207 dev_err(dev, "%s - resubmit interrupt urb failed, %d\n",
1212 static void ti_bulk_in_callback(struct urb *urb)
1214 struct ti_port *tport = urb->context;
1215 struct usb_serial_port *port = tport->tp_port;
1216 struct device *dev = &urb->dev->dev;
1217 int status = urb->status;
1218 unsigned long flags;
1227 dev_dbg(dev, "%s - urb shutting down, %d\n", __func__, status);
1230 dev_err(dev, "%s - nonzero urb status, %d\n",
1234 if (status == -EPIPE)
1238 dev_err(dev, "%s - stopping read!\n", __func__);
1242 if (urb->actual_length) {
1243 usb_serial_debug_data(dev, __func__, urb->actual_length,
1244 urb->transfer_buffer);
1246 if (!tport->tp_is_open)
1247 dev_dbg(dev, "%s - port closed, dropping data\n",
1250 ti_recv(port, urb->transfer_buffer, urb->actual_length);
1251 spin_lock_irqsave(&tport->tp_lock, flags);
1252 port->icount.rx += urb->actual_length;
1253 spin_unlock_irqrestore(&tport->tp_lock, flags);
1257 /* continue to read unless stopping */
1258 spin_lock_irqsave(&tport->tp_lock, flags);
1259 if (tport->tp_read_urb_state == TI_READ_URB_RUNNING)
1260 retval = usb_submit_urb(urb, GFP_ATOMIC);
1261 else if (tport->tp_read_urb_state == TI_READ_URB_STOPPING)
1262 tport->tp_read_urb_state = TI_READ_URB_STOPPED;
1264 spin_unlock_irqrestore(&tport->tp_lock, flags);
1266 dev_err(dev, "%s - resubmit read urb failed, %d\n",
1271 static void ti_bulk_out_callback(struct urb *urb)
1273 struct ti_port *tport = urb->context;
1274 struct usb_serial_port *port = tport->tp_port;
1275 int status = urb->status;
1277 tport->tp_write_urb_in_use = 0;
1285 dev_dbg(&port->dev, "%s - urb shutting down, %d\n", __func__, status);
1288 dev_err_console(port, "%s - nonzero urb status, %d\n",
1292 /* send any buffered data */
1297 static void ti_recv(struct usb_serial_port *port, unsigned char *data,
1303 cnt = tty_insert_flip_string(&port->port, data, length);
1305 dev_err(&port->dev, "%s - dropping data, %d bytes lost\n",
1306 __func__, length - cnt);
1310 tty_flip_buffer_push(&port->port);
1313 } while (length > 0);
1317 static void ti_send(struct ti_port *tport)
1320 struct usb_serial_port *port = tport->tp_port;
1321 unsigned long flags;
1323 spin_lock_irqsave(&tport->tp_lock, flags);
1325 if (tport->tp_write_urb_in_use)
1328 count = kfifo_out(&port->write_fifo,
1329 port->write_urb->transfer_buffer,
1330 port->bulk_out_size);
1335 tport->tp_write_urb_in_use = 1;
1337 spin_unlock_irqrestore(&tport->tp_lock, flags);
1339 usb_serial_debug_data(&port->dev, __func__, count,
1340 port->write_urb->transfer_buffer);
1342 usb_fill_bulk_urb(port->write_urb, port->serial->dev,
1343 usb_sndbulkpipe(port->serial->dev,
1344 port->bulk_out_endpointAddress),
1345 port->write_urb->transfer_buffer, count,
1346 ti_bulk_out_callback, tport);
1348 result = usb_submit_urb(port->write_urb, GFP_ATOMIC);
1350 dev_err_console(port, "%s - submit write urb failed, %d\n",
1352 tport->tp_write_urb_in_use = 0;
1353 /* TODO: reschedule ti_send */
1355 spin_lock_irqsave(&tport->tp_lock, flags);
1356 port->icount.tx += count;
1357 spin_unlock_irqrestore(&tport->tp_lock, flags);
1360 /* more room in the buffer for new writes, wakeup */
1361 tty_port_tty_wakeup(&port->port);
1365 spin_unlock_irqrestore(&tport->tp_lock, flags);
1370 static int ti_set_mcr(struct ti_port *tport, unsigned int mcr)
1372 unsigned long flags;
1375 status = ti_write_byte(tport->tp_port, tport->tp_tdev,
1376 tport->tp_uart_base_addr + TI_UART_OFFSET_MCR,
1377 TI_MCR_RTS | TI_MCR_DTR | TI_MCR_LOOP, mcr);
1379 spin_lock_irqsave(&tport->tp_lock, flags);
1381 tport->tp_shadow_mcr = mcr;
1382 spin_unlock_irqrestore(&tport->tp_lock, flags);
1388 static int ti_get_lsr(struct ti_port *tport, u8 *lsr)
1391 struct ti_device *tdev = tport->tp_tdev;
1392 struct usb_serial_port *port = tport->tp_port;
1393 int port_number = port->port_number;
1394 struct ti_port_status *data;
1396 size = sizeof(struct ti_port_status);
1397 data = kmalloc(size, GFP_KERNEL);
1401 status = ti_command_in_sync(tdev, TI_GET_PORT_STATUS,
1402 (__u8)(TI_UART1_PORT+port_number), 0, (__u8 *)data, size);
1405 "%s - get port status command failed, %d\n",
1410 dev_dbg(&port->dev, "%s - lsr 0x%02X\n", __func__, data->bLSR);
1420 static int ti_get_serial_info(struct ti_port *tport,
1421 struct serial_struct __user *ret_arg)
1423 struct usb_serial_port *port = tport->tp_port;
1424 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) {
1650 "moxa/moxa-%04x.fw",
1651 le16_to_cpu(dev->descriptor.idProduct));
1653 status = request_firmware(&fw_p, buf, &dev->dev);
1654 goto check_firmware;
1657 /* try ID specific firmware first, then try generic firmware */
1658 sprintf(buf, "ti_usb-v%04x-p%04x.fw",
1659 le16_to_cpu(dev->descriptor.idVendor),
1660 le16_to_cpu(dev->descriptor.idProduct));
1661 status = request_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, "mts_cdma.fw");
1670 case MTS_GSM_PRODUCT_ID:
1671 strcpy(buf, "mts_gsm.fw");
1673 case MTS_EDGE_PRODUCT_ID:
1674 strcpy(buf, "mts_edge.fw");
1676 case MTS_MT9234MU_PRODUCT_ID:
1677 strcpy(buf, "mts_mt9234mu.fw");
1679 case MTS_MT9234ZBA_PRODUCT_ID:
1680 strcpy(buf, "mts_mt9234zba.fw");
1682 case MTS_MT9234ZBAOLD_PRODUCT_ID:
1683 strcpy(buf, "mts_mt9234zba.fw");
1686 if (buf[0] == '\0') {
1687 if (tdev->td_is_3410)
1688 strcpy(buf, "ti_3410.fw");
1690 strcpy(buf, "ti_5052.fw");
1692 status = request_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__);