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 STARTECH_VENDOR_ID 0x14b0
41 #define TI_3410_PRODUCT_ID 0x3410
42 #define IBM_4543_PRODUCT_ID 0x4543
43 #define IBM_454B_PRODUCT_ID 0x454b
44 #define IBM_454C_PRODUCT_ID 0x454c
45 #define TI_3410_EZ430_ID 0xF430 /* TI ez430 development tool */
46 #define TI_5052_BOOT_PRODUCT_ID 0x5052 /* no EEPROM, no firmware */
47 #define TI_5152_BOOT_PRODUCT_ID 0x5152 /* no EEPROM, no firmware */
48 #define TI_5052_EEPROM_PRODUCT_ID 0x505A /* EEPROM, no firmware */
49 #define TI_5052_FIRMWARE_PRODUCT_ID 0x505F /* firmware is running */
50 #define FRI2_PRODUCT_ID 0x5053 /* Fish River Island II */
52 /* Multi-Tech vendor and product ids */
53 #define MTS_VENDOR_ID 0x06E0
54 #define MTS_GSM_NO_FW_PRODUCT_ID 0xF108
55 #define MTS_CDMA_NO_FW_PRODUCT_ID 0xF109
56 #define MTS_CDMA_PRODUCT_ID 0xF110
57 #define MTS_GSM_PRODUCT_ID 0xF111
58 #define MTS_EDGE_PRODUCT_ID 0xF112
59 #define MTS_MT9234MU_PRODUCT_ID 0xF114
60 #define MTS_MT9234ZBA_PRODUCT_ID 0xF115
61 #define MTS_MT9234ZBAOLD_PRODUCT_ID 0x0319
63 /* Abbott Diabetics vendor and product ids */
64 #define ABBOTT_VENDOR_ID 0x1a61
65 #define ABBOTT_STEREO_PLUG_ID 0x3410
66 #define ABBOTT_PRODUCT_ID ABBOTT_STEREO_PLUG_ID
67 #define ABBOTT_STRIP_PORT_ID 0x3420
69 /* Honeywell vendor and product IDs */
70 #define HONEYWELL_VENDOR_ID 0x10ac
71 #define HONEYWELL_HGI80_PRODUCT_ID 0x0102 /* Honeywell HGI80 */
73 /* Moxa UPORT 11x0 vendor and product IDs */
74 #define MXU1_VENDOR_ID 0x110a
75 #define MXU1_1110_PRODUCT_ID 0x1110
76 #define MXU1_1130_PRODUCT_ID 0x1130
77 #define MXU1_1150_PRODUCT_ID 0x1150
78 #define MXU1_1151_PRODUCT_ID 0x1151
79 #define MXU1_1131_PRODUCT_ID 0x1131
82 #define TI_GET_VERSION 0x01
83 #define TI_GET_PORT_STATUS 0x02
84 #define TI_GET_PORT_DEV_INFO 0x03
85 #define TI_GET_CONFIG 0x04
86 #define TI_SET_CONFIG 0x05
87 #define TI_OPEN_PORT 0x06
88 #define TI_CLOSE_PORT 0x07
89 #define TI_START_PORT 0x08
90 #define TI_STOP_PORT 0x09
91 #define TI_TEST_PORT 0x0A
92 #define TI_PURGE_PORT 0x0B
93 #define TI_RESET_EXT_DEVICE 0x0C
94 #define TI_WRITE_DATA 0x80
95 #define TI_READ_DATA 0x81
96 #define TI_REQ_TYPE_CLASS 0x82
98 /* Module identifiers */
99 #define TI_I2C_PORT 0x01
100 #define TI_IEEE1284_PORT 0x02
101 #define TI_UART1_PORT 0x03
102 #define TI_UART2_PORT 0x04
103 #define TI_RAM_PORT 0x05
106 #define TI_MSR_DELTA_CTS 0x01
107 #define TI_MSR_DELTA_DSR 0x02
108 #define TI_MSR_DELTA_RI 0x04
109 #define TI_MSR_DELTA_CD 0x08
110 #define TI_MSR_CTS 0x10
111 #define TI_MSR_DSR 0x20
112 #define TI_MSR_RI 0x40
113 #define TI_MSR_CD 0x80
114 #define TI_MSR_DELTA_MASK 0x0F
115 #define TI_MSR_MASK 0xF0
118 #define TI_LSR_OVERRUN_ERROR 0x01
119 #define TI_LSR_PARITY_ERROR 0x02
120 #define TI_LSR_FRAMING_ERROR 0x04
121 #define TI_LSR_BREAK 0x08
122 #define TI_LSR_ERROR 0x0F
123 #define TI_LSR_RX_FULL 0x10
124 #define TI_LSR_TX_EMPTY 0x20
127 #define TI_LCR_BREAK 0x40
130 #define TI_MCR_LOOP 0x04
131 #define TI_MCR_DTR 0x10
132 #define TI_MCR_RTS 0x20
135 #define TI_UART_ENABLE_RTS_IN 0x0001
136 #define TI_UART_DISABLE_RTS 0x0002
137 #define TI_UART_ENABLE_PARITY_CHECKING 0x0008
138 #define TI_UART_ENABLE_DSR_OUT 0x0010
139 #define TI_UART_ENABLE_CTS_OUT 0x0020
140 #define TI_UART_ENABLE_X_OUT 0x0040
141 #define TI_UART_ENABLE_XA_OUT 0x0080
142 #define TI_UART_ENABLE_X_IN 0x0100
143 #define TI_UART_ENABLE_DTR_IN 0x0800
144 #define TI_UART_DISABLE_DTR 0x1000
145 #define TI_UART_ENABLE_MS_INTS 0x2000
146 #define TI_UART_ENABLE_AUTO_START_DMA 0x4000
149 #define TI_UART_NO_PARITY 0x00
150 #define TI_UART_ODD_PARITY 0x01
151 #define TI_UART_EVEN_PARITY 0x02
152 #define TI_UART_MARK_PARITY 0x03
153 #define TI_UART_SPACE_PARITY 0x04
156 #define TI_UART_1_STOP_BITS 0x00
157 #define TI_UART_1_5_STOP_BITS 0x01
158 #define TI_UART_2_STOP_BITS 0x02
160 /* Bits per character */
161 #define TI_UART_5_DATA_BITS 0x00
162 #define TI_UART_6_DATA_BITS 0x01
163 #define TI_UART_7_DATA_BITS 0x02
164 #define TI_UART_8_DATA_BITS 0x03
167 #define TI_UART_232 0x00
168 #define TI_UART_485_RECEIVER_DISABLED 0x01
169 #define TI_UART_485_RECEIVER_ENABLED 0x02
171 /* Pipe transfer mode and timeout */
172 #define TI_PIPE_MODE_CONTINUOUS 0x01
173 #define TI_PIPE_MODE_MASK 0x03
174 #define TI_PIPE_TIMEOUT_MASK 0x7C
175 #define TI_PIPE_TIMEOUT_ENABLE 0x80
178 struct ti_uart_config {
189 /* Get port status */
190 struct ti_port_status {
199 #define TI_PURGE_OUTPUT 0x00
200 #define TI_PURGE_INPUT 0x80
202 /* Read/Write data */
203 #define TI_RW_DATA_ADDR_SFR 0x10
204 #define TI_RW_DATA_ADDR_IDATA 0x20
205 #define TI_RW_DATA_ADDR_XDATA 0x30
206 #define TI_RW_DATA_ADDR_CODE 0x40
207 #define TI_RW_DATA_ADDR_GPIO 0x50
208 #define TI_RW_DATA_ADDR_I2C 0x60
209 #define TI_RW_DATA_ADDR_FLASH 0x70
210 #define TI_RW_DATA_ADDR_DSP 0x80
212 #define TI_RW_DATA_UNSPECIFIED 0x00
213 #define TI_RW_DATA_BYTE 0x01
214 #define TI_RW_DATA_WORD 0x02
215 #define TI_RW_DATA_DOUBLE_WORD 0x04
217 struct ti_write_data_bytes {
226 struct ti_read_data_request {
234 struct ti_read_data_bytes {
241 /* Interrupt struct */
242 struct ti_interrupt {
247 /* Interrupt codes */
248 #define TI_CODE_HARDWARE_ERROR 0xFF
249 #define TI_CODE_DATA_ERROR 0x03
250 #define TI_CODE_MODEM_STATUS 0x04
252 /* Download firmware max packet size */
253 #define TI_DOWNLOAD_MAX_PACKET_SIZE 64
255 /* Firmware image header */
256 struct ti_firmware_header {
262 #define TI_UART1_BASE_ADDR 0xFFA0 /* UART 1 base address */
263 #define TI_UART2_BASE_ADDR 0xFFB0 /* UART 2 base address */
264 #define TI_UART_OFFSET_LCR 0x0002 /* UART MCR register offset */
265 #define TI_UART_OFFSET_MCR 0x0004 /* UART MCR register offset */
267 #define TI_DRIVER_AUTHOR "Al Borchers <alborchers@steinerpoint.com>"
268 #define TI_DRIVER_DESC "TI USB 3410/5052 Serial Driver"
270 #define TI_FIRMWARE_BUF_SIZE 16284
272 #define TI_TRANSFER_TIMEOUT 2
274 #define TI_DEFAULT_CLOSING_WAIT 4000 /* in .01 secs */
276 /* read urb states */
277 #define TI_READ_URB_RUNNING 0
278 #define TI_READ_URB_STOPPING 1
279 #define TI_READ_URB_STOPPED 2
281 #define TI_EXTRA_VID_PID_COUNT 5
287 u8 tp_uart_mode; /* 232 or 485 modes */
288 unsigned int tp_uart_base_addr;
289 struct ti_device *tp_tdev;
290 struct usb_serial_port *tp_port;
292 int tp_read_urb_state;
293 int tp_write_urb_in_use;
297 struct mutex td_open_close_lock;
298 int td_open_port_count;
299 struct usb_serial *td_serial;
304 static int ti_startup(struct usb_serial *serial);
305 static void ti_release(struct usb_serial *serial);
306 static int ti_port_probe(struct usb_serial_port *port);
307 static int ti_port_remove(struct usb_serial_port *port);
308 static int ti_open(struct tty_struct *tty, struct usb_serial_port *port);
309 static void ti_close(struct usb_serial_port *port);
310 static int ti_write(struct tty_struct *tty, struct usb_serial_port *port,
311 const unsigned char *data, int count);
312 static int ti_write_room(struct tty_struct *tty);
313 static int ti_chars_in_buffer(struct tty_struct *tty);
314 static bool ti_tx_empty(struct usb_serial_port *port);
315 static void ti_throttle(struct tty_struct *tty);
316 static void ti_unthrottle(struct tty_struct *tty);
317 static void ti_set_termios(struct tty_struct *tty,
318 struct usb_serial_port *port, struct ktermios *old_termios);
319 static int ti_tiocmget(struct tty_struct *tty);
320 static int ti_tiocmset(struct tty_struct *tty,
321 unsigned int set, unsigned int clear);
322 static void ti_break(struct tty_struct *tty, int break_state);
323 static void ti_interrupt_callback(struct urb *urb);
324 static void ti_bulk_in_callback(struct urb *urb);
325 static void ti_bulk_out_callback(struct urb *urb);
327 static void ti_recv(struct usb_serial_port *port, unsigned char *data,
329 static void ti_send(struct ti_port *tport);
330 static int ti_set_mcr(struct ti_port *tport, unsigned int mcr);
331 static int ti_get_lsr(struct ti_port *tport, u8 *lsr);
332 static int ti_get_serial_info(struct tty_struct *tty,
333 struct serial_struct *ss);
334 static int ti_set_serial_info(struct tty_struct *tty,
335 struct serial_struct *ss);
336 static void ti_handle_new_msr(struct ti_port *tport, u8 msr);
338 static void ti_stop_read(struct ti_port *tport, struct tty_struct *tty);
339 static int ti_restart_read(struct ti_port *tport, struct tty_struct *tty);
341 static int ti_command_out_sync(struct ti_device *tdev, __u8 command,
342 __u16 moduleid, __u16 value, __u8 *data, int size);
343 static int ti_command_in_sync(struct ti_device *tdev, __u8 command,
344 __u16 moduleid, __u16 value, __u8 *data, int size);
346 static int ti_write_byte(struct usb_serial_port *port, struct ti_device *tdev,
347 unsigned long addr, u8 mask, u8 byte);
349 static int ti_download_firmware(struct ti_device *tdev);
351 static int closing_wait = TI_DEFAULT_CLOSING_WAIT;
353 static const struct usb_device_id ti_id_table_3410[] = {
354 { USB_DEVICE(TI_VENDOR_ID, TI_3410_PRODUCT_ID) },
355 { USB_DEVICE(TI_VENDOR_ID, TI_3410_EZ430_ID) },
356 { USB_DEVICE(MTS_VENDOR_ID, MTS_GSM_NO_FW_PRODUCT_ID) },
357 { USB_DEVICE(MTS_VENDOR_ID, MTS_CDMA_NO_FW_PRODUCT_ID) },
358 { USB_DEVICE(MTS_VENDOR_ID, MTS_CDMA_PRODUCT_ID) },
359 { USB_DEVICE(MTS_VENDOR_ID, MTS_GSM_PRODUCT_ID) },
360 { USB_DEVICE(MTS_VENDOR_ID, MTS_EDGE_PRODUCT_ID) },
361 { USB_DEVICE(MTS_VENDOR_ID, MTS_MT9234MU_PRODUCT_ID) },
362 { USB_DEVICE(MTS_VENDOR_ID, MTS_MT9234ZBA_PRODUCT_ID) },
363 { USB_DEVICE(MTS_VENDOR_ID, MTS_MT9234ZBAOLD_PRODUCT_ID) },
364 { USB_DEVICE(IBM_VENDOR_ID, IBM_4543_PRODUCT_ID) },
365 { USB_DEVICE(IBM_VENDOR_ID, IBM_454B_PRODUCT_ID) },
366 { USB_DEVICE(IBM_VENDOR_ID, IBM_454C_PRODUCT_ID) },
367 { USB_DEVICE(ABBOTT_VENDOR_ID, ABBOTT_STEREO_PLUG_ID) },
368 { USB_DEVICE(ABBOTT_VENDOR_ID, ABBOTT_STRIP_PORT_ID) },
369 { USB_DEVICE(TI_VENDOR_ID, FRI2_PRODUCT_ID) },
370 { USB_DEVICE(HONEYWELL_VENDOR_ID, HONEYWELL_HGI80_PRODUCT_ID) },
371 { USB_DEVICE(MXU1_VENDOR_ID, MXU1_1110_PRODUCT_ID) },
372 { USB_DEVICE(MXU1_VENDOR_ID, MXU1_1130_PRODUCT_ID) },
373 { USB_DEVICE(MXU1_VENDOR_ID, MXU1_1131_PRODUCT_ID) },
374 { USB_DEVICE(MXU1_VENDOR_ID, MXU1_1150_PRODUCT_ID) },
375 { USB_DEVICE(MXU1_VENDOR_ID, MXU1_1151_PRODUCT_ID) },
376 { USB_DEVICE(STARTECH_VENDOR_ID, TI_3410_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) },
415 { USB_DEVICE(STARTECH_VENDOR_ID, TI_3410_PRODUCT_ID) },
419 static struct usb_serial_driver ti_1port_device = {
421 .owner = THIS_MODULE,
422 .name = "ti_usb_3410_5052_1",
424 .description = "TI USB 3410 1 port adapter",
425 .id_table = ti_id_table_3410,
428 .attach = ti_startup,
429 .release = ti_release,
430 .port_probe = ti_port_probe,
431 .port_remove = ti_port_remove,
435 .write_room = ti_write_room,
436 .chars_in_buffer = ti_chars_in_buffer,
437 .tx_empty = ti_tx_empty,
438 .throttle = ti_throttle,
439 .unthrottle = ti_unthrottle,
440 .get_serial = ti_get_serial_info,
441 .set_serial = ti_set_serial_info,
442 .set_termios = ti_set_termios,
443 .tiocmget = ti_tiocmget,
444 .tiocmset = ti_tiocmset,
445 .tiocmiwait = usb_serial_generic_tiocmiwait,
446 .get_icount = usb_serial_generic_get_icount,
447 .break_ctl = ti_break,
448 .read_int_callback = ti_interrupt_callback,
449 .read_bulk_callback = ti_bulk_in_callback,
450 .write_bulk_callback = ti_bulk_out_callback,
453 static struct usb_serial_driver ti_2port_device = {
455 .owner = THIS_MODULE,
456 .name = "ti_usb_3410_5052_2",
458 .description = "TI USB 5052 2 port adapter",
459 .id_table = ti_id_table_5052,
462 .attach = ti_startup,
463 .release = ti_release,
464 .port_probe = ti_port_probe,
465 .port_remove = ti_port_remove,
469 .write_room = ti_write_room,
470 .chars_in_buffer = ti_chars_in_buffer,
471 .tx_empty = ti_tx_empty,
472 .throttle = ti_throttle,
473 .unthrottle = ti_unthrottle,
474 .get_serial = ti_get_serial_info,
475 .set_serial = ti_set_serial_info,
476 .set_termios = ti_set_termios,
477 .tiocmget = ti_tiocmget,
478 .tiocmset = ti_tiocmset,
479 .tiocmiwait = usb_serial_generic_tiocmiwait,
480 .get_icount = usb_serial_generic_get_icount,
481 .break_ctl = ti_break,
482 .read_int_callback = ti_interrupt_callback,
483 .read_bulk_callback = ti_bulk_in_callback,
484 .write_bulk_callback = ti_bulk_out_callback,
487 static struct usb_serial_driver * const serial_drivers[] = {
488 &ti_1port_device, &ti_2port_device, NULL
491 MODULE_AUTHOR(TI_DRIVER_AUTHOR);
492 MODULE_DESCRIPTION(TI_DRIVER_DESC);
493 MODULE_LICENSE("GPL");
497 module_param(closing_wait, int, S_IRUGO | S_IWUSR);
498 MODULE_PARM_DESC(closing_wait,
499 "Maximum wait for data to drain in close, in .01 secs, default is 4000");
501 MODULE_DEVICE_TABLE(usb, ti_id_table_combined);
503 module_usb_serial_driver(serial_drivers, ti_id_table_combined);
505 static int ti_startup(struct usb_serial *serial)
507 struct ti_device *tdev;
508 struct usb_device *dev = serial->dev;
509 struct usb_host_interface *cur_altsetting;
515 "%s - product 0x%4X, num configurations %d, configuration value %d\n",
516 __func__, le16_to_cpu(dev->descriptor.idProduct),
517 dev->descriptor.bNumConfigurations,
518 dev->actconfig->desc.bConfigurationValue);
520 tdev = kzalloc(sizeof(struct ti_device), GFP_KERNEL);
524 mutex_init(&tdev->td_open_close_lock);
525 tdev->td_serial = serial;
526 usb_set_serial_data(serial, tdev);
528 /* determine device type */
529 if (serial->type == &ti_1port_device)
530 tdev->td_is_3410 = 1;
531 dev_dbg(&dev->dev, "%s - device type is %s\n", __func__,
532 tdev->td_is_3410 ? "3410" : "5052");
534 vid = le16_to_cpu(dev->descriptor.idVendor);
535 pid = le16_to_cpu(dev->descriptor.idProduct);
536 if (vid == MXU1_VENDOR_ID) {
538 case MXU1_1130_PRODUCT_ID:
539 case MXU1_1131_PRODUCT_ID:
540 tdev->td_rs485_only = true;
545 cur_altsetting = serial->interface->cur_altsetting;
546 num_endpoints = cur_altsetting->desc.bNumEndpoints;
548 /* if we have only 1 configuration and 1 endpoint, download firmware */
549 if (dev->descriptor.bNumConfigurations == 1 && num_endpoints == 1) {
550 status = ti_download_firmware(tdev);
555 /* 3410 must be reset, 5052 resets itself */
556 if (tdev->td_is_3410) {
557 msleep_interruptible(100);
558 usb_reset_device(dev);
565 /* the second configuration must be set */
566 if (dev->actconfig->desc.bConfigurationValue == TI_BOOT_CONFIG) {
567 status = usb_driver_set_configuration(dev, TI_ACTIVE_CONFIG);
568 status = status ? status : -ENODEV;
572 if (serial->num_bulk_in < serial->num_ports ||
573 serial->num_bulk_out < serial->num_ports) {
574 dev_err(&serial->interface->dev, "missing endpoints\n");
583 usb_set_serial_data(serial, NULL);
588 static void ti_release(struct usb_serial *serial)
590 struct ti_device *tdev = usb_get_serial_data(serial);
595 static int ti_port_probe(struct usb_serial_port *port)
597 struct ti_port *tport;
599 tport = kzalloc(sizeof(*tport), GFP_KERNEL);
603 spin_lock_init(&tport->tp_lock);
604 if (port == port->serial->port[0])
605 tport->tp_uart_base_addr = TI_UART1_BASE_ADDR;
607 tport->tp_uart_base_addr = TI_UART2_BASE_ADDR;
608 port->port.closing_wait = msecs_to_jiffies(10 * closing_wait);
609 tport->tp_port = port;
610 tport->tp_tdev = usb_get_serial_data(port->serial);
612 if (tport->tp_tdev->td_rs485_only)
613 tport->tp_uart_mode = TI_UART_485_RECEIVER_DISABLED;
615 tport->tp_uart_mode = TI_UART_232;
617 usb_set_serial_port_data(port, tport);
619 port->port.drain_delay = 3;
624 static int ti_port_remove(struct usb_serial_port *port)
626 struct ti_port *tport;
628 tport = usb_get_serial_port_data(port);
634 static int ti_open(struct tty_struct *tty, struct usb_serial_port *port)
636 struct ti_port *tport = usb_get_serial_port_data(port);
637 struct ti_device *tdev;
638 struct usb_device *dev;
644 open_settings = (TI_PIPE_MODE_CONTINUOUS |
645 TI_PIPE_TIMEOUT_ENABLE |
646 (TI_TRANSFER_TIMEOUT << 2));
648 dev = port->serial->dev;
649 tdev = tport->tp_tdev;
651 /* only one open on any port on a device at a time */
652 if (mutex_lock_interruptible(&tdev->td_open_close_lock))
655 port_number = port->port_number;
658 tport->tp_shadow_mcr |= (TI_MCR_RTS | TI_MCR_DTR);
660 /* start interrupt urb the first time a port is opened on this device */
661 if (tdev->td_open_port_count == 0) {
662 dev_dbg(&port->dev, "%s - start interrupt in urb\n", __func__);
663 urb = tdev->td_serial->port[0]->interrupt_in_urb;
665 dev_err(&port->dev, "%s - no interrupt urb\n", __func__);
670 status = usb_submit_urb(urb, GFP_KERNEL);
672 dev_err(&port->dev, "%s - submit interrupt urb failed, %d\n", __func__, status);
678 ti_set_termios(tty, port, &tty->termios);
680 status = ti_command_out_sync(tdev, TI_OPEN_PORT,
681 (__u8)(TI_UART1_PORT + port_number), open_settings, NULL, 0);
683 dev_err(&port->dev, "%s - cannot send open command, %d\n",
688 status = ti_command_out_sync(tdev, TI_START_PORT,
689 (__u8)(TI_UART1_PORT + port_number), 0, NULL, 0);
691 dev_err(&port->dev, "%s - cannot send start command, %d\n",
696 status = ti_command_out_sync(tdev, TI_PURGE_PORT,
697 (__u8)(TI_UART1_PORT + port_number), TI_PURGE_INPUT, NULL, 0);
699 dev_err(&port->dev, "%s - cannot clear input buffers, %d\n",
703 status = ti_command_out_sync(tdev, TI_PURGE_PORT,
704 (__u8)(TI_UART1_PORT + port_number), TI_PURGE_OUTPUT, NULL, 0);
706 dev_err(&port->dev, "%s - cannot clear output buffers, %d\n",
711 /* reset the data toggle on the bulk endpoints to work around bug in
712 * host controllers where things get out of sync some times */
713 usb_clear_halt(dev, port->write_urb->pipe);
714 usb_clear_halt(dev, port->read_urb->pipe);
717 ti_set_termios(tty, port, &tty->termios);
719 status = ti_command_out_sync(tdev, TI_OPEN_PORT,
720 (__u8)(TI_UART1_PORT + port_number), open_settings, NULL, 0);
722 dev_err(&port->dev, "%s - cannot send open command (2), %d\n",
727 status = ti_command_out_sync(tdev, TI_START_PORT,
728 (__u8)(TI_UART1_PORT + port_number), 0, NULL, 0);
730 dev_err(&port->dev, "%s - cannot send start command (2), %d\n",
736 urb = port->read_urb;
738 dev_err(&port->dev, "%s - no read urb\n", __func__);
742 tport->tp_read_urb_state = TI_READ_URB_RUNNING;
743 urb->context = tport;
744 status = usb_submit_urb(urb, GFP_KERNEL);
746 dev_err(&port->dev, "%s - submit read urb failed, %d\n",
751 tport->tp_is_open = 1;
752 ++tdev->td_open_port_count;
757 if (tdev->td_open_port_count == 0)
758 usb_kill_urb(port->serial->port[0]->interrupt_in_urb);
760 mutex_unlock(&tdev->td_open_close_lock);
765 static void ti_close(struct usb_serial_port *port)
767 struct ti_device *tdev;
768 struct ti_port *tport;
773 tdev = usb_get_serial_data(port->serial);
774 tport = usb_get_serial_port_data(port);
776 tport->tp_is_open = 0;
778 usb_kill_urb(port->read_urb);
779 usb_kill_urb(port->write_urb);
780 tport->tp_write_urb_in_use = 0;
781 spin_lock_irqsave(&tport->tp_lock, flags);
782 kfifo_reset_out(&port->write_fifo);
783 spin_unlock_irqrestore(&tport->tp_lock, flags);
785 port_number = port->port_number;
787 status = ti_command_out_sync(tdev, TI_CLOSE_PORT,
788 (__u8)(TI_UART1_PORT + port_number), 0, NULL, 0);
791 "%s - cannot send close port command, %d\n"
794 mutex_lock(&tdev->td_open_close_lock);
795 --tdev->td_open_port_count;
796 if (tdev->td_open_port_count == 0) {
797 /* last port is closed, shut down interrupt urb */
798 usb_kill_urb(port->serial->port[0]->interrupt_in_urb);
800 mutex_unlock(&tdev->td_open_close_lock);
804 static int ti_write(struct tty_struct *tty, struct usb_serial_port *port,
805 const unsigned char *data, int count)
807 struct ti_port *tport = usb_get_serial_port_data(port);
813 if (!tport->tp_is_open)
816 count = kfifo_in_locked(&port->write_fifo, data, count,
824 static int ti_write_room(struct tty_struct *tty)
826 struct usb_serial_port *port = tty->driver_data;
827 struct ti_port *tport = usb_get_serial_port_data(port);
831 spin_lock_irqsave(&tport->tp_lock, flags);
832 room = kfifo_avail(&port->write_fifo);
833 spin_unlock_irqrestore(&tport->tp_lock, flags);
835 dev_dbg(&port->dev, "%s - returns %d\n", __func__, room);
840 static int ti_chars_in_buffer(struct tty_struct *tty)
842 struct usb_serial_port *port = tty->driver_data;
843 struct ti_port *tport = usb_get_serial_port_data(port);
847 spin_lock_irqsave(&tport->tp_lock, flags);
848 chars = kfifo_len(&port->write_fifo);
849 spin_unlock_irqrestore(&tport->tp_lock, flags);
851 dev_dbg(&port->dev, "%s - returns %d\n", __func__, chars);
855 static bool ti_tx_empty(struct usb_serial_port *port)
857 struct ti_port *tport = usb_get_serial_port_data(port);
861 ret = ti_get_lsr(tport, &lsr);
862 if (!ret && !(lsr & TI_LSR_TX_EMPTY))
868 static void ti_throttle(struct tty_struct *tty)
870 struct usb_serial_port *port = tty->driver_data;
871 struct ti_port *tport = usb_get_serial_port_data(port);
873 if (I_IXOFF(tty) || C_CRTSCTS(tty))
874 ti_stop_read(tport, tty);
879 static void ti_unthrottle(struct tty_struct *tty)
881 struct usb_serial_port *port = tty->driver_data;
882 struct ti_port *tport = usb_get_serial_port_data(port);
885 if (I_IXOFF(tty) || C_CRTSCTS(tty)) {
886 status = ti_restart_read(tport, tty);
888 dev_err(&port->dev, "%s - cannot restart read, %d\n",
893 static void ti_set_termios(struct tty_struct *tty,
894 struct usb_serial_port *port, struct ktermios *old_termios)
896 struct ti_port *tport = usb_get_serial_port_data(port);
897 struct ti_uart_config *config;
900 int port_number = port->port_number;
905 config = kmalloc(sizeof(*config), GFP_KERNEL);
909 /* these flags must be set */
910 wflags |= TI_UART_ENABLE_MS_INTS;
911 wflags |= TI_UART_ENABLE_AUTO_START_DMA;
912 config->bUartMode = tport->tp_uart_mode;
914 switch (C_CSIZE(tty)) {
916 config->bDataBits = TI_UART_5_DATA_BITS;
919 config->bDataBits = TI_UART_6_DATA_BITS;
922 config->bDataBits = TI_UART_7_DATA_BITS;
926 config->bDataBits = TI_UART_8_DATA_BITS;
930 /* CMSPAR isn't supported by this driver */
931 tty->termios.c_cflag &= ~CMSPAR;
935 wflags |= TI_UART_ENABLE_PARITY_CHECKING;
936 config->bParity = TI_UART_ODD_PARITY;
938 wflags |= TI_UART_ENABLE_PARITY_CHECKING;
939 config->bParity = TI_UART_EVEN_PARITY;
942 wflags &= ~TI_UART_ENABLE_PARITY_CHECKING;
943 config->bParity = TI_UART_NO_PARITY;
947 config->bStopBits = TI_UART_2_STOP_BITS;
949 config->bStopBits = TI_UART_1_STOP_BITS;
951 if (C_CRTSCTS(tty)) {
952 /* RTS flow control must be off to drop RTS for baud rate B0 */
953 if ((C_BAUD(tty)) != B0)
954 wflags |= TI_UART_ENABLE_RTS_IN;
955 wflags |= TI_UART_ENABLE_CTS_OUT;
957 ti_restart_read(tport, tty);
960 if (I_IXOFF(tty) || I_IXON(tty)) {
961 config->cXon = START_CHAR(tty);
962 config->cXoff = STOP_CHAR(tty);
965 wflags |= TI_UART_ENABLE_X_IN;
967 ti_restart_read(tport, tty);
970 wflags |= TI_UART_ENABLE_X_OUT;
973 baud = tty_get_baud_rate(tty);
976 if (tport->tp_tdev->td_is_3410)
977 wbaudrate = (923077 + baud/2) / baud;
979 wbaudrate = (461538 + baud/2) / baud;
981 /* FIXME: Should calculate resulting baud here and report it back */
982 if ((C_BAUD(tty)) != B0)
983 tty_encode_baud_rate(tty, baud, baud);
986 "%s - BaudRate=%d, wBaudRate=%d, wFlags=0x%04X, bDataBits=%d, bParity=%d, bStopBits=%d, cXon=%d, cXoff=%d, bUartMode=%d\n",
987 __func__, baud, wbaudrate, wflags,
988 config->bDataBits, config->bParity, config->bStopBits,
989 config->cXon, config->cXoff, config->bUartMode);
991 config->wBaudRate = cpu_to_be16(wbaudrate);
992 config->wFlags = cpu_to_be16(wflags);
994 status = ti_command_out_sync(tport->tp_tdev, TI_SET_CONFIG,
995 (__u8)(TI_UART1_PORT + port_number), 0, (__u8 *)config,
998 dev_err(&port->dev, "%s - cannot set config on port %d, %d\n",
999 __func__, port_number, status);
1001 /* SET_CONFIG asserts RTS and DTR, reset them correctly */
1002 mcr = tport->tp_shadow_mcr;
1003 /* if baud rate is B0, clear RTS and DTR */
1004 if (C_BAUD(tty) == B0)
1005 mcr &= ~(TI_MCR_DTR | TI_MCR_RTS);
1006 status = ti_set_mcr(tport, mcr);
1009 "%s - cannot set modem control on port %d, %d\n",
1010 __func__, port_number, status);
1016 static int ti_tiocmget(struct tty_struct *tty)
1018 struct usb_serial_port *port = tty->driver_data;
1019 struct ti_port *tport = usb_get_serial_port_data(port);
1020 unsigned int result;
1023 unsigned long flags;
1025 spin_lock_irqsave(&tport->tp_lock, flags);
1026 msr = tport->tp_msr;
1027 mcr = tport->tp_shadow_mcr;
1028 spin_unlock_irqrestore(&tport->tp_lock, flags);
1030 result = ((mcr & TI_MCR_DTR) ? TIOCM_DTR : 0)
1031 | ((mcr & TI_MCR_RTS) ? TIOCM_RTS : 0)
1032 | ((mcr & TI_MCR_LOOP) ? TIOCM_LOOP : 0)
1033 | ((msr & TI_MSR_CTS) ? TIOCM_CTS : 0)
1034 | ((msr & TI_MSR_CD) ? TIOCM_CAR : 0)
1035 | ((msr & TI_MSR_RI) ? TIOCM_RI : 0)
1036 | ((msr & TI_MSR_DSR) ? TIOCM_DSR : 0);
1038 dev_dbg(&port->dev, "%s - 0x%04X\n", __func__, result);
1044 static int ti_tiocmset(struct tty_struct *tty,
1045 unsigned int set, unsigned int clear)
1047 struct usb_serial_port *port = tty->driver_data;
1048 struct ti_port *tport = usb_get_serial_port_data(port);
1050 unsigned long flags;
1052 spin_lock_irqsave(&tport->tp_lock, flags);
1053 mcr = tport->tp_shadow_mcr;
1055 if (set & TIOCM_RTS)
1057 if (set & TIOCM_DTR)
1059 if (set & TIOCM_LOOP)
1062 if (clear & TIOCM_RTS)
1064 if (clear & TIOCM_DTR)
1066 if (clear & TIOCM_LOOP)
1067 mcr &= ~TI_MCR_LOOP;
1068 spin_unlock_irqrestore(&tport->tp_lock, flags);
1070 return ti_set_mcr(tport, mcr);
1074 static void ti_break(struct tty_struct *tty, int break_state)
1076 struct usb_serial_port *port = tty->driver_data;
1077 struct ti_port *tport = usb_get_serial_port_data(port);
1080 dev_dbg(&port->dev, "%s - state = %d\n", __func__, break_state);
1082 status = ti_write_byte(port, tport->tp_tdev,
1083 tport->tp_uart_base_addr + TI_UART_OFFSET_LCR,
1084 TI_LCR_BREAK, break_state == -1 ? TI_LCR_BREAK : 0);
1087 dev_dbg(&port->dev, "%s - error setting break, %d\n", __func__, status);
1090 static int ti_get_port_from_code(unsigned char code)
1092 return (code >> 6) & 0x01;
1095 static int ti_get_func_from_code(unsigned char code)
1100 static void ti_interrupt_callback(struct urb *urb)
1102 struct ti_device *tdev = urb->context;
1103 struct usb_serial_port *port;
1104 struct usb_serial *serial = tdev->td_serial;
1105 struct ti_port *tport;
1106 struct device *dev = &urb->dev->dev;
1107 unsigned char *data = urb->transfer_buffer;
1108 int length = urb->actual_length;
1111 int status = urb->status;
1121 dev_dbg(dev, "%s - urb shutting down, %d\n", __func__, status);
1124 dev_err(dev, "%s - nonzero urb status, %d\n", __func__, status);
1129 dev_dbg(dev, "%s - bad packet size, %d\n", __func__, length);
1133 if (data[0] == TI_CODE_HARDWARE_ERROR) {
1134 dev_err(dev, "%s - hardware error, %d\n", __func__, data[1]);
1138 port_number = ti_get_port_from_code(data[0]);
1139 function = ti_get_func_from_code(data[0]);
1141 dev_dbg(dev, "%s - port_number %d, function %d, data 0x%02X\n",
1142 __func__, port_number, function, data[1]);
1144 if (port_number >= serial->num_ports) {
1145 dev_err(dev, "%s - bad port number, %d\n",
1146 __func__, port_number);
1150 port = serial->port[port_number];
1152 tport = usb_get_serial_port_data(port);
1157 case TI_CODE_DATA_ERROR:
1158 dev_err(dev, "%s - DATA ERROR, port %d, data 0x%02X\n",
1159 __func__, port_number, data[1]);
1162 case TI_CODE_MODEM_STATUS:
1164 dev_dbg(dev, "%s - port %d, msr 0x%02X\n", __func__, port_number, msr);
1165 ti_handle_new_msr(tport, msr);
1169 dev_err(dev, "%s - unknown interrupt code, 0x%02X\n",
1175 retval = usb_submit_urb(urb, GFP_ATOMIC);
1177 dev_err(dev, "%s - resubmit interrupt urb failed, %d\n",
1182 static void ti_bulk_in_callback(struct urb *urb)
1184 struct ti_port *tport = urb->context;
1185 struct usb_serial_port *port = tport->tp_port;
1186 struct device *dev = &urb->dev->dev;
1187 int status = urb->status;
1188 unsigned long flags;
1197 dev_dbg(dev, "%s - urb shutting down, %d\n", __func__, status);
1200 dev_err(dev, "%s - nonzero urb status, %d\n",
1204 if (status == -EPIPE)
1208 dev_err(dev, "%s - stopping read!\n", __func__);
1212 if (urb->actual_length) {
1213 usb_serial_debug_data(dev, __func__, urb->actual_length,
1214 urb->transfer_buffer);
1216 if (!tport->tp_is_open)
1217 dev_dbg(dev, "%s - port closed, dropping data\n",
1220 ti_recv(port, urb->transfer_buffer, urb->actual_length);
1221 spin_lock_irqsave(&tport->tp_lock, flags);
1222 port->icount.rx += urb->actual_length;
1223 spin_unlock_irqrestore(&tport->tp_lock, flags);
1227 /* continue to read unless stopping */
1228 spin_lock_irqsave(&tport->tp_lock, flags);
1229 if (tport->tp_read_urb_state == TI_READ_URB_RUNNING)
1230 retval = usb_submit_urb(urb, GFP_ATOMIC);
1231 else if (tport->tp_read_urb_state == TI_READ_URB_STOPPING)
1232 tport->tp_read_urb_state = TI_READ_URB_STOPPED;
1234 spin_unlock_irqrestore(&tport->tp_lock, flags);
1236 dev_err(dev, "%s - resubmit read urb failed, %d\n",
1241 static void ti_bulk_out_callback(struct urb *urb)
1243 struct ti_port *tport = urb->context;
1244 struct usb_serial_port *port = tport->tp_port;
1245 int status = urb->status;
1247 tport->tp_write_urb_in_use = 0;
1255 dev_dbg(&port->dev, "%s - urb shutting down, %d\n", __func__, status);
1258 dev_err_console(port, "%s - nonzero urb status, %d\n",
1262 /* send any buffered data */
1267 static void ti_recv(struct usb_serial_port *port, unsigned char *data,
1273 cnt = tty_insert_flip_string(&port->port, data, length);
1275 dev_err(&port->dev, "%s - dropping data, %d bytes lost\n",
1276 __func__, length - cnt);
1280 tty_flip_buffer_push(&port->port);
1283 } while (length > 0);
1287 static void ti_send(struct ti_port *tport)
1290 struct usb_serial_port *port = tport->tp_port;
1291 unsigned long flags;
1293 spin_lock_irqsave(&tport->tp_lock, flags);
1295 if (tport->tp_write_urb_in_use)
1298 count = kfifo_out(&port->write_fifo,
1299 port->write_urb->transfer_buffer,
1300 port->bulk_out_size);
1305 tport->tp_write_urb_in_use = 1;
1307 spin_unlock_irqrestore(&tport->tp_lock, flags);
1309 usb_serial_debug_data(&port->dev, __func__, count,
1310 port->write_urb->transfer_buffer);
1312 usb_fill_bulk_urb(port->write_urb, port->serial->dev,
1313 usb_sndbulkpipe(port->serial->dev,
1314 port->bulk_out_endpointAddress),
1315 port->write_urb->transfer_buffer, count,
1316 ti_bulk_out_callback, tport);
1318 result = usb_submit_urb(port->write_urb, GFP_ATOMIC);
1320 dev_err_console(port, "%s - submit write urb failed, %d\n",
1322 tport->tp_write_urb_in_use = 0;
1323 /* TODO: reschedule ti_send */
1325 spin_lock_irqsave(&tport->tp_lock, flags);
1326 port->icount.tx += count;
1327 spin_unlock_irqrestore(&tport->tp_lock, flags);
1330 /* more room in the buffer for new writes, wakeup */
1331 tty_port_tty_wakeup(&port->port);
1335 spin_unlock_irqrestore(&tport->tp_lock, flags);
1340 static int ti_set_mcr(struct ti_port *tport, unsigned int mcr)
1342 unsigned long flags;
1345 status = ti_write_byte(tport->tp_port, tport->tp_tdev,
1346 tport->tp_uart_base_addr + TI_UART_OFFSET_MCR,
1347 TI_MCR_RTS | TI_MCR_DTR | TI_MCR_LOOP, mcr);
1349 spin_lock_irqsave(&tport->tp_lock, flags);
1351 tport->tp_shadow_mcr = mcr;
1352 spin_unlock_irqrestore(&tport->tp_lock, flags);
1358 static int ti_get_lsr(struct ti_port *tport, u8 *lsr)
1361 struct ti_device *tdev = tport->tp_tdev;
1362 struct usb_serial_port *port = tport->tp_port;
1363 int port_number = port->port_number;
1364 struct ti_port_status *data;
1366 size = sizeof(struct ti_port_status);
1367 data = kmalloc(size, GFP_KERNEL);
1371 status = ti_command_in_sync(tdev, TI_GET_PORT_STATUS,
1372 (__u8)(TI_UART1_PORT+port_number), 0, (__u8 *)data, size);
1375 "%s - get port status command failed, %d\n",
1380 dev_dbg(&port->dev, "%s - lsr 0x%02X\n", __func__, data->bLSR);
1390 static int ti_get_serial_info(struct tty_struct *tty,
1391 struct serial_struct *ss)
1393 struct usb_serial_port *port = tty->driver_data;
1394 struct ti_port *tport = usb_get_serial_port_data(port);
1397 cwait = port->port.closing_wait;
1398 if (cwait != ASYNC_CLOSING_WAIT_NONE)
1399 cwait = jiffies_to_msecs(cwait) / 10;
1401 ss->type = PORT_16550A;
1402 ss->line = port->minor;
1403 ss->port = port->port_number;
1404 ss->xmit_fifo_size = kfifo_size(&port->write_fifo);
1405 ss->baud_base = tport->tp_tdev->td_is_3410 ? 921600 : 460800;
1406 ss->closing_wait = cwait;
1411 static int ti_set_serial_info(struct tty_struct *tty,
1412 struct serial_struct *ss)
1414 struct usb_serial_port *port = tty->driver_data;
1415 struct tty_port *tport = &port->port;
1418 cwait = ss->closing_wait;
1419 if (cwait != ASYNC_CLOSING_WAIT_NONE)
1420 cwait = msecs_to_jiffies(10 * ss->closing_wait);
1422 if (!capable(CAP_SYS_ADMIN)) {
1423 if (cwait != tport->closing_wait)
1427 tport->closing_wait = cwait;
1433 static void ti_handle_new_msr(struct ti_port *tport, u8 msr)
1435 struct async_icount *icount;
1436 struct tty_struct *tty;
1437 unsigned long flags;
1439 dev_dbg(&tport->tp_port->dev, "%s - msr 0x%02X\n", __func__, msr);
1441 if (msr & TI_MSR_DELTA_MASK) {
1442 spin_lock_irqsave(&tport->tp_lock, flags);
1443 icount = &tport->tp_port->icount;
1444 if (msr & TI_MSR_DELTA_CTS)
1446 if (msr & TI_MSR_DELTA_DSR)
1448 if (msr & TI_MSR_DELTA_CD)
1450 if (msr & TI_MSR_DELTA_RI)
1452 wake_up_interruptible(&tport->tp_port->port.delta_msr_wait);
1453 spin_unlock_irqrestore(&tport->tp_lock, flags);
1456 tport->tp_msr = msr & TI_MSR_MASK;
1458 /* handle CTS flow control */
1459 tty = tty_port_tty_get(&tport->tp_port->port);
1460 if (tty && C_CRTSCTS(tty)) {
1461 if (msr & TI_MSR_CTS)
1468 static void ti_stop_read(struct ti_port *tport, struct tty_struct *tty)
1470 unsigned long flags;
1472 spin_lock_irqsave(&tport->tp_lock, flags);
1474 if (tport->tp_read_urb_state == TI_READ_URB_RUNNING)
1475 tport->tp_read_urb_state = TI_READ_URB_STOPPING;
1477 spin_unlock_irqrestore(&tport->tp_lock, flags);
1481 static int ti_restart_read(struct ti_port *tport, struct tty_struct *tty)
1485 unsigned long flags;
1487 spin_lock_irqsave(&tport->tp_lock, flags);
1489 if (tport->tp_read_urb_state == TI_READ_URB_STOPPED) {
1490 tport->tp_read_urb_state = TI_READ_URB_RUNNING;
1491 urb = tport->tp_port->read_urb;
1492 spin_unlock_irqrestore(&tport->tp_lock, flags);
1493 urb->context = tport;
1494 status = usb_submit_urb(urb, GFP_KERNEL);
1496 tport->tp_read_urb_state = TI_READ_URB_RUNNING;
1497 spin_unlock_irqrestore(&tport->tp_lock, flags);
1504 static int ti_command_out_sync(struct ti_device *tdev, __u8 command,
1505 __u16 moduleid, __u16 value, __u8 *data, int size)
1509 status = usb_control_msg(tdev->td_serial->dev,
1510 usb_sndctrlpipe(tdev->td_serial->dev, 0), command,
1511 (USB_TYPE_VENDOR | USB_RECIP_DEVICE | USB_DIR_OUT),
1512 value, moduleid, data, size, 1000);
1521 static int ti_command_in_sync(struct ti_device *tdev, __u8 command,
1522 __u16 moduleid, __u16 value, __u8 *data, int size)
1526 status = usb_control_msg(tdev->td_serial->dev,
1527 usb_rcvctrlpipe(tdev->td_serial->dev, 0), command,
1528 (USB_TYPE_VENDOR | USB_RECIP_DEVICE | USB_DIR_IN),
1529 value, moduleid, data, size, 1000);
1533 else if (status >= 0)
1540 static int ti_write_byte(struct usb_serial_port *port,
1541 struct ti_device *tdev, unsigned long addr,
1546 struct ti_write_data_bytes *data;
1548 dev_dbg(&port->dev, "%s - addr 0x%08lX, mask 0x%02X, byte 0x%02X\n", __func__,
1551 size = sizeof(struct ti_write_data_bytes) + 2;
1552 data = kmalloc(size, GFP_KERNEL);
1556 data->bAddrType = TI_RW_DATA_ADDR_XDATA;
1557 data->bDataType = TI_RW_DATA_BYTE;
1558 data->bDataCounter = 1;
1559 data->wBaseAddrHi = cpu_to_be16(addr>>16);
1560 data->wBaseAddrLo = cpu_to_be16(addr);
1561 data->bData[0] = mask;
1562 data->bData[1] = byte;
1564 status = ti_command_out_sync(tdev, TI_WRITE_DATA, TI_RAM_PORT, 0,
1565 (__u8 *)data, size);
1568 dev_err(&port->dev, "%s - failed, %d\n", __func__, status);
1575 static int ti_do_download(struct usb_device *dev, int pipe,
1576 u8 *buffer, int size)
1581 struct ti_firmware_header *header;
1585 for (pos = sizeof(struct ti_firmware_header); pos < size; pos++)
1586 cs = (u8)(cs + buffer[pos]);
1588 header = (struct ti_firmware_header *)buffer;
1589 header->wLength = cpu_to_le16(size - sizeof(*header));
1590 header->bCheckSum = cs;
1592 dev_dbg(&dev->dev, "%s - downloading firmware\n", __func__);
1593 for (pos = 0; pos < size; pos += done) {
1594 len = min(size - pos, TI_DOWNLOAD_MAX_PACKET_SIZE);
1595 status = usb_bulk_msg(dev, pipe, buffer + pos, len,
1603 static int ti_download_firmware(struct ti_device *tdev)
1608 struct usb_device *dev = tdev->td_serial->dev;
1609 unsigned int pipe = usb_sndbulkpipe(dev,
1610 tdev->td_serial->port[0]->bulk_out_endpointAddress);
1611 const struct firmware *fw_p;
1614 if (le16_to_cpu(dev->descriptor.idVendor) == MXU1_VENDOR_ID) {
1618 le16_to_cpu(dev->descriptor.idProduct));
1620 status = reject_firmware(&fw_p, buf, &dev->dev);
1621 goto check_firmware;
1624 /* try ID specific firmware first, then try generic firmware */
1625 sprintf(buf, "/*(DEBLOBBED)*/",
1626 le16_to_cpu(dev->descriptor.idVendor),
1627 le16_to_cpu(dev->descriptor.idProduct));
1628 status = reject_firmware(&fw_p, buf, &dev->dev);
1632 if (le16_to_cpu(dev->descriptor.idVendor) == MTS_VENDOR_ID) {
1633 switch (le16_to_cpu(dev->descriptor.idProduct)) {
1634 case MTS_CDMA_PRODUCT_ID:
1635 strcpy(buf, "/*(DEBLOBBED)*/");
1637 case MTS_GSM_PRODUCT_ID:
1638 strcpy(buf, "/*(DEBLOBBED)*/");
1640 case MTS_EDGE_PRODUCT_ID:
1641 strcpy(buf, "/*(DEBLOBBED)*/");
1643 case MTS_MT9234MU_PRODUCT_ID:
1644 strcpy(buf, "/*(DEBLOBBED)*/");
1646 case MTS_MT9234ZBA_PRODUCT_ID:
1647 strcpy(buf, "/*(DEBLOBBED)*/");
1649 case MTS_MT9234ZBAOLD_PRODUCT_ID:
1650 strcpy(buf, "/*(DEBLOBBED)*/");
1653 if (buf[0] == '\0') {
1654 if (tdev->td_is_3410)
1655 strcpy(buf, "/*(DEBLOBBED)*/");
1657 strcpy(buf, "/*(DEBLOBBED)*/");
1659 status = reject_firmware(&fw_p, buf, &dev->dev);
1664 dev_err(&dev->dev, "%s - firmware not found\n", __func__);
1667 if (fw_p->size > TI_FIRMWARE_BUF_SIZE) {
1668 dev_err(&dev->dev, "%s - firmware too large %zu\n", __func__, fw_p->size);
1669 release_firmware(fw_p);
1673 buffer_size = TI_FIRMWARE_BUF_SIZE + sizeof(struct ti_firmware_header);
1674 buffer = kmalloc(buffer_size, GFP_KERNEL);
1676 memcpy(buffer, fw_p->data, fw_p->size);
1677 memset(buffer + fw_p->size, 0xff, buffer_size - fw_p->size);
1678 status = ti_do_download(dev, pipe, buffer, fw_p->size);
1683 release_firmware(fw_p);
1685 dev_err(&dev->dev, "%s - error downloading firmware, %d\n",
1690 dev_dbg(&dev->dev, "%s - download successful\n", __func__);