3 * TI 3410/5052 USB Serial Driver
5 * Copyright (C) 2004 Texas Instruments
7 * This driver is based on the Linux io_ti driver, which is
8 * Copyright (C) 2000-2002 Inside Out Networks
9 * Copyright (C) 2001-2002 Greg Kroah-Hartman
11 * This program is free software; you can redistribute it and/or modify
12 * it under the terms of the GNU General Public License as published by
13 * the Free Software Foundation; either version 2 of the License, or
14 * (at your option) any later version.
16 * For questions or problems with this driver, contact Texas Instruments
17 * technical support, or Al Borchers <alborchers@steinerpoint.com>, or
18 * Peter Berger <pberger@brimson.com>.
21 #include <linux/kernel.h>
22 #include <linux/errno.h>
23 #include <linux/firmware.h>
24 #include <linux/init.h>
25 #include <linux/slab.h>
26 #include <linux/tty.h>
27 #include <linux/tty_driver.h>
28 #include <linux/tty_flip.h>
29 #include <linux/module.h>
30 #include <linux/spinlock.h>
31 #include <linux/ioctl.h>
32 #include <linux/serial.h>
33 #include <linux/kfifo.h>
34 #include <linux/mutex.h>
35 #include <linux/uaccess.h>
36 #include <linux/usb.h>
37 #include <linux/usb/serial.h>
39 #include "ti_usb_3410_5052.h"
43 #define TI_DRIVER_AUTHOR "Al Borchers <alborchers@steinerpoint.com>"
44 #define TI_DRIVER_DESC "TI USB 3410/5052 Serial Driver"
46 #define TI_FIRMWARE_BUF_SIZE 16284
48 #define TI_WRITE_BUF_SIZE 1024
50 #define TI_TRANSFER_TIMEOUT 2
52 #define TI_DEFAULT_CLOSING_WAIT 4000 /* in .01 secs */
54 /* supported setserial flags */
55 #define TI_SET_SERIAL_FLAGS 0
58 #define TI_READ_URB_RUNNING 0
59 #define TI_READ_URB_STOPPING 1
60 #define TI_READ_URB_STOPPED 2
62 #define TI_EXTRA_VID_PID_COUNT 5
71 __u8 tp_uart_mode
; /* 232 or 485 modes */
72 unsigned int tp_uart_base_addr
;
74 wait_queue_head_t tp_write_wait
;
75 struct ti_device
*tp_tdev
;
76 struct usb_serial_port
*tp_port
;
78 int tp_read_urb_state
;
79 int tp_write_urb_in_use
;
80 struct kfifo write_fifo
;
84 struct mutex td_open_close_lock
;
85 int td_open_port_count
;
86 struct usb_serial
*td_serial
;
92 /* Function Declarations */
94 static int ti_startup(struct usb_serial
*serial
);
95 static void ti_release(struct usb_serial
*serial
);
96 static int ti_port_probe(struct usb_serial_port
*port
);
97 static int ti_port_remove(struct usb_serial_port
*port
);
98 static int ti_open(struct tty_struct
*tty
, struct usb_serial_port
*port
);
99 static void ti_close(struct usb_serial_port
*port
);
100 static int ti_write(struct tty_struct
*tty
, struct usb_serial_port
*port
,
101 const unsigned char *data
, int count
);
102 static int ti_write_room(struct tty_struct
*tty
);
103 static int ti_chars_in_buffer(struct tty_struct
*tty
);
104 static void ti_throttle(struct tty_struct
*tty
);
105 static void ti_unthrottle(struct tty_struct
*tty
);
106 static int ti_ioctl(struct tty_struct
*tty
,
107 unsigned int cmd
, unsigned long arg
);
108 static void ti_set_termios(struct tty_struct
*tty
,
109 struct usb_serial_port
*port
, struct ktermios
*old_termios
);
110 static int ti_tiocmget(struct tty_struct
*tty
);
111 static int ti_tiocmset(struct tty_struct
*tty
,
112 unsigned int set
, unsigned int clear
);
113 static void ti_break(struct tty_struct
*tty
, int break_state
);
114 static void ti_interrupt_callback(struct urb
*urb
);
115 static void ti_bulk_in_callback(struct urb
*urb
);
116 static void ti_bulk_out_callback(struct urb
*urb
);
118 static void ti_recv(struct usb_serial_port
*port
, unsigned char *data
,
120 static void ti_send(struct ti_port
*tport
);
121 static int ti_set_mcr(struct ti_port
*tport
, unsigned int mcr
);
122 static int ti_get_lsr(struct ti_port
*tport
, u8
*lsr
);
123 static int ti_get_serial_info(struct ti_port
*tport
,
124 struct serial_struct __user
*ret_arg
);
125 static int ti_set_serial_info(struct tty_struct
*tty
, struct ti_port
*tport
,
126 struct serial_struct __user
*new_arg
);
127 static void ti_handle_new_msr(struct ti_port
*tport
, __u8 msr
);
129 static void ti_stop_read(struct ti_port
*tport
, struct tty_struct
*tty
);
130 static int ti_restart_read(struct ti_port
*tport
, struct tty_struct
*tty
);
132 static int ti_command_out_sync(struct ti_device
*tdev
, __u8 command
,
133 __u16 moduleid
, __u16 value
, __u8
*data
, int size
);
134 static int ti_command_in_sync(struct ti_device
*tdev
, __u8 command
,
135 __u16 moduleid
, __u16 value
, __u8
*data
, int size
);
137 static int ti_write_byte(struct usb_serial_port
*port
, struct ti_device
*tdev
,
138 unsigned long addr
, __u8 mask
, __u8 byte
);
140 static int ti_download_firmware(struct ti_device
*tdev
);
145 /* module parameters */
146 static int closing_wait
= TI_DEFAULT_CLOSING_WAIT
;
147 static ushort vendor_3410
[TI_EXTRA_VID_PID_COUNT
];
148 static unsigned int vendor_3410_count
;
149 static ushort product_3410
[TI_EXTRA_VID_PID_COUNT
];
150 static unsigned int product_3410_count
;
151 static ushort vendor_5052
[TI_EXTRA_VID_PID_COUNT
];
152 static unsigned int vendor_5052_count
;
153 static ushort product_5052
[TI_EXTRA_VID_PID_COUNT
];
154 static unsigned int product_5052_count
;
156 /* supported devices */
157 /* the array dimension is the number of default entries plus */
158 /* TI_EXTRA_VID_PID_COUNT user defined entries plus 1 terminating */
160 static struct usb_device_id ti_id_table_3410
[15+TI_EXTRA_VID_PID_COUNT
+1] = {
161 { USB_DEVICE(TI_VENDOR_ID
, TI_3410_PRODUCT_ID
) },
162 { USB_DEVICE(TI_VENDOR_ID
, TI_3410_EZ430_ID
) },
163 { USB_DEVICE(MTS_VENDOR_ID
, MTS_GSM_NO_FW_PRODUCT_ID
) },
164 { USB_DEVICE(MTS_VENDOR_ID
, MTS_CDMA_NO_FW_PRODUCT_ID
) },
165 { USB_DEVICE(MTS_VENDOR_ID
, MTS_CDMA_PRODUCT_ID
) },
166 { USB_DEVICE(MTS_VENDOR_ID
, MTS_GSM_PRODUCT_ID
) },
167 { USB_DEVICE(MTS_VENDOR_ID
, MTS_EDGE_PRODUCT_ID
) },
168 { USB_DEVICE(MTS_VENDOR_ID
, MTS_MT9234MU_PRODUCT_ID
) },
169 { USB_DEVICE(MTS_VENDOR_ID
, MTS_MT9234ZBA_PRODUCT_ID
) },
170 { USB_DEVICE(MTS_VENDOR_ID
, MTS_MT9234ZBAOLD_PRODUCT_ID
) },
171 { USB_DEVICE(IBM_VENDOR_ID
, IBM_4543_PRODUCT_ID
) },
172 { USB_DEVICE(IBM_VENDOR_ID
, IBM_454B_PRODUCT_ID
) },
173 { USB_DEVICE(IBM_VENDOR_ID
, IBM_454C_PRODUCT_ID
) },
174 { USB_DEVICE(ABBOTT_VENDOR_ID
, ABBOTT_PRODUCT_ID
) },
175 { USB_DEVICE(TI_VENDOR_ID
, FRI2_PRODUCT_ID
) },
178 static struct usb_device_id ti_id_table_5052
[5+TI_EXTRA_VID_PID_COUNT
+1] = {
179 { USB_DEVICE(TI_VENDOR_ID
, TI_5052_BOOT_PRODUCT_ID
) },
180 { USB_DEVICE(TI_VENDOR_ID
, TI_5152_BOOT_PRODUCT_ID
) },
181 { USB_DEVICE(TI_VENDOR_ID
, TI_5052_EEPROM_PRODUCT_ID
) },
182 { USB_DEVICE(TI_VENDOR_ID
, TI_5052_FIRMWARE_PRODUCT_ID
) },
185 static struct usb_device_id ti_id_table_combined
[19+2*TI_EXTRA_VID_PID_COUNT
+1] = {
186 { USB_DEVICE(TI_VENDOR_ID
, TI_3410_PRODUCT_ID
) },
187 { USB_DEVICE(TI_VENDOR_ID
, TI_3410_EZ430_ID
) },
188 { USB_DEVICE(MTS_VENDOR_ID
, MTS_GSM_NO_FW_PRODUCT_ID
) },
189 { USB_DEVICE(MTS_VENDOR_ID
, MTS_CDMA_NO_FW_PRODUCT_ID
) },
190 { USB_DEVICE(MTS_VENDOR_ID
, MTS_CDMA_PRODUCT_ID
) },
191 { USB_DEVICE(MTS_VENDOR_ID
, MTS_GSM_PRODUCT_ID
) },
192 { USB_DEVICE(MTS_VENDOR_ID
, MTS_EDGE_PRODUCT_ID
) },
193 { USB_DEVICE(MTS_VENDOR_ID
, MTS_MT9234MU_PRODUCT_ID
) },
194 { USB_DEVICE(MTS_VENDOR_ID
, MTS_MT9234ZBA_PRODUCT_ID
) },
195 { USB_DEVICE(MTS_VENDOR_ID
, MTS_MT9234ZBAOLD_PRODUCT_ID
) },
196 { USB_DEVICE(TI_VENDOR_ID
, TI_5052_BOOT_PRODUCT_ID
) },
197 { USB_DEVICE(TI_VENDOR_ID
, TI_5152_BOOT_PRODUCT_ID
) },
198 { USB_DEVICE(TI_VENDOR_ID
, TI_5052_EEPROM_PRODUCT_ID
) },
199 { USB_DEVICE(TI_VENDOR_ID
, TI_5052_FIRMWARE_PRODUCT_ID
) },
200 { USB_DEVICE(IBM_VENDOR_ID
, IBM_4543_PRODUCT_ID
) },
201 { USB_DEVICE(IBM_VENDOR_ID
, IBM_454B_PRODUCT_ID
) },
202 { USB_DEVICE(IBM_VENDOR_ID
, IBM_454C_PRODUCT_ID
) },
203 { USB_DEVICE(ABBOTT_VENDOR_ID
, ABBOTT_PRODUCT_ID
) },
204 { USB_DEVICE(TI_VENDOR_ID
, FRI2_PRODUCT_ID
) },
208 static struct usb_serial_driver ti_1port_device
= {
210 .owner
= THIS_MODULE
,
211 .name
= "ti_usb_3410_5052_1",
213 .description
= "TI USB 3410 1 port adapter",
214 .id_table
= ti_id_table_3410
,
216 .attach
= ti_startup
,
217 .release
= ti_release
,
218 .port_probe
= ti_port_probe
,
219 .port_remove
= ti_port_remove
,
223 .write_room
= ti_write_room
,
224 .chars_in_buffer
= ti_chars_in_buffer
,
225 .throttle
= ti_throttle
,
226 .unthrottle
= ti_unthrottle
,
228 .set_termios
= ti_set_termios
,
229 .tiocmget
= ti_tiocmget
,
230 .tiocmset
= ti_tiocmset
,
231 .tiocmiwait
= usb_serial_generic_tiocmiwait
,
232 .get_icount
= usb_serial_generic_get_icount
,
233 .break_ctl
= ti_break
,
234 .read_int_callback
= ti_interrupt_callback
,
235 .read_bulk_callback
= ti_bulk_in_callback
,
236 .write_bulk_callback
= ti_bulk_out_callback
,
239 static struct usb_serial_driver ti_2port_device
= {
241 .owner
= THIS_MODULE
,
242 .name
= "ti_usb_3410_5052_2",
244 .description
= "TI USB 5052 2 port adapter",
245 .id_table
= ti_id_table_5052
,
247 .attach
= ti_startup
,
248 .release
= ti_release
,
249 .port_probe
= ti_port_probe
,
250 .port_remove
= ti_port_remove
,
254 .write_room
= ti_write_room
,
255 .chars_in_buffer
= ti_chars_in_buffer
,
256 .throttle
= ti_throttle
,
257 .unthrottle
= ti_unthrottle
,
259 .set_termios
= ti_set_termios
,
260 .tiocmget
= ti_tiocmget
,
261 .tiocmset
= ti_tiocmset
,
262 .tiocmiwait
= usb_serial_generic_tiocmiwait
,
263 .get_icount
= usb_serial_generic_get_icount
,
264 .break_ctl
= ti_break
,
265 .read_int_callback
= ti_interrupt_callback
,
266 .read_bulk_callback
= ti_bulk_in_callback
,
267 .write_bulk_callback
= ti_bulk_out_callback
,
270 static struct usb_serial_driver
* const serial_drivers
[] = {
271 &ti_1port_device
, &ti_2port_device
, NULL
276 MODULE_AUTHOR(TI_DRIVER_AUTHOR
);
277 MODULE_DESCRIPTION(TI_DRIVER_DESC
);
278 MODULE_LICENSE("GPL");
280 MODULE_FIRMWARE("ti_3410.fw");
281 MODULE_FIRMWARE("ti_5052.fw");
282 MODULE_FIRMWARE("mts_cdma.fw");
283 MODULE_FIRMWARE("mts_gsm.fw");
284 MODULE_FIRMWARE("mts_edge.fw");
285 MODULE_FIRMWARE("mts_mt9234mu.fw");
286 MODULE_FIRMWARE("mts_mt9234zba.fw");
288 module_param(closing_wait
, int, S_IRUGO
| S_IWUSR
);
289 MODULE_PARM_DESC(closing_wait
,
290 "Maximum wait for data to drain in close, in .01 secs, default is 4000");
292 module_param_array(vendor_3410
, ushort
, &vendor_3410_count
, S_IRUGO
);
293 MODULE_PARM_DESC(vendor_3410
,
294 "Vendor ids for 3410 based devices, 1-5 short integers");
295 module_param_array(product_3410
, ushort
, &product_3410_count
, S_IRUGO
);
296 MODULE_PARM_DESC(product_3410
,
297 "Product ids for 3410 based devices, 1-5 short integers");
298 module_param_array(vendor_5052
, ushort
, &vendor_5052_count
, S_IRUGO
);
299 MODULE_PARM_DESC(vendor_5052
,
300 "Vendor ids for 5052 based devices, 1-5 short integers");
301 module_param_array(product_5052
, ushort
, &product_5052_count
, S_IRUGO
);
302 MODULE_PARM_DESC(product_5052
,
303 "Product ids for 5052 based devices, 1-5 short integers");
305 MODULE_DEVICE_TABLE(usb
, ti_id_table_combined
);
310 static int __init
ti_init(void)
314 /* insert extra vendor and product ids */
315 c
= ARRAY_SIZE(ti_id_table_combined
) - 2 * TI_EXTRA_VID_PID_COUNT
- 1;
316 j
= ARRAY_SIZE(ti_id_table_3410
) - TI_EXTRA_VID_PID_COUNT
- 1;
317 for (i
= 0; i
< min(vendor_3410_count
, product_3410_count
); i
++, j
++, c
++) {
318 ti_id_table_3410
[j
].idVendor
= vendor_3410
[i
];
319 ti_id_table_3410
[j
].idProduct
= product_3410
[i
];
320 ti_id_table_3410
[j
].match_flags
= USB_DEVICE_ID_MATCH_DEVICE
;
321 ti_id_table_combined
[c
].idVendor
= vendor_3410
[i
];
322 ti_id_table_combined
[c
].idProduct
= product_3410
[i
];
323 ti_id_table_combined
[c
].match_flags
= USB_DEVICE_ID_MATCH_DEVICE
;
325 j
= ARRAY_SIZE(ti_id_table_5052
) - TI_EXTRA_VID_PID_COUNT
- 1;
326 for (i
= 0; i
< min(vendor_5052_count
, product_5052_count
); i
++, j
++, c
++) {
327 ti_id_table_5052
[j
].idVendor
= vendor_5052
[i
];
328 ti_id_table_5052
[j
].idProduct
= product_5052
[i
];
329 ti_id_table_5052
[j
].match_flags
= USB_DEVICE_ID_MATCH_DEVICE
;
330 ti_id_table_combined
[c
].idVendor
= vendor_5052
[i
];
331 ti_id_table_combined
[c
].idProduct
= product_5052
[i
];
332 ti_id_table_combined
[c
].match_flags
= USB_DEVICE_ID_MATCH_DEVICE
;
335 return usb_serial_register_drivers(serial_drivers
, KBUILD_MODNAME
, ti_id_table_combined
);
338 static void __exit
ti_exit(void)
340 usb_serial_deregister_drivers(serial_drivers
);
343 module_init(ti_init
);
344 module_exit(ti_exit
);
347 static int ti_startup(struct usb_serial
*serial
)
349 struct ti_device
*tdev
;
350 struct usb_device
*dev
= serial
->dev
;
354 "%s - product 0x%4X, num configurations %d, configuration value %d",
355 __func__
, le16_to_cpu(dev
->descriptor
.idProduct
),
356 dev
->descriptor
.bNumConfigurations
,
357 dev
->actconfig
->desc
.bConfigurationValue
);
359 /* create device structure */
360 tdev
= kzalloc(sizeof(struct ti_device
), GFP_KERNEL
);
362 dev_err(&dev
->dev
, "%s - out of memory\n", __func__
);
365 mutex_init(&tdev
->td_open_close_lock
);
366 tdev
->td_serial
= serial
;
367 usb_set_serial_data(serial
, tdev
);
369 /* determine device type */
370 if (usb_match_id(serial
->interface
, ti_id_table_3410
))
371 tdev
->td_is_3410
= 1;
372 dev_dbg(&dev
->dev
, "%s - device type is %s\n", __func__
,
373 tdev
->td_is_3410
? "3410" : "5052");
375 /* if we have only 1 configuration, download firmware */
376 if (dev
->descriptor
.bNumConfigurations
== 1) {
377 status
= ti_download_firmware(tdev
);
382 /* 3410 must be reset, 5052 resets itself */
383 if (tdev
->td_is_3410
) {
384 msleep_interruptible(100);
385 usb_reset_device(dev
);
392 /* the second configuration must be set */
393 if (dev
->actconfig
->desc
.bConfigurationValue
== TI_BOOT_CONFIG
) {
394 status
= usb_driver_set_configuration(dev
, TI_ACTIVE_CONFIG
);
395 status
= status
? status
: -ENODEV
;
403 usb_set_serial_data(serial
, NULL
);
408 static void ti_release(struct usb_serial
*serial
)
410 struct ti_device
*tdev
= usb_get_serial_data(serial
);
415 static int ti_port_probe(struct usb_serial_port
*port
)
417 struct ti_port
*tport
;
419 tport
= kzalloc(sizeof(*tport
), GFP_KERNEL
);
423 spin_lock_init(&tport
->tp_lock
);
424 if (port
== port
->serial
->port
[0])
425 tport
->tp_uart_base_addr
= TI_UART1_BASE_ADDR
;
427 tport
->tp_uart_base_addr
= TI_UART2_BASE_ADDR
;
428 port
->port
.closing_wait
= msecs_to_jiffies(10 * closing_wait
);
429 init_waitqueue_head(&tport
->tp_write_wait
);
430 if (kfifo_alloc(&tport
->write_fifo
, TI_WRITE_BUF_SIZE
, GFP_KERNEL
)) {
434 tport
->tp_port
= port
;
435 tport
->tp_tdev
= usb_get_serial_data(port
->serial
);
436 tport
->tp_uart_mode
= 0; /* default is RS232 */
438 usb_set_serial_port_data(port
, tport
);
443 static int ti_port_remove(struct usb_serial_port
*port
)
445 struct ti_port
*tport
;
447 tport
= usb_get_serial_port_data(port
);
448 kfifo_free(&tport
->write_fifo
);
454 static int ti_open(struct tty_struct
*tty
, struct usb_serial_port
*port
)
456 struct ti_port
*tport
= usb_get_serial_port_data(port
);
457 struct ti_device
*tdev
;
458 struct usb_device
*dev
;
462 __u16 open_settings
= (__u8
)(TI_PIPE_MODE_CONTINOUS
|
463 TI_PIPE_TIMEOUT_ENABLE
|
464 (TI_TRANSFER_TIMEOUT
<< 2));
469 dev
= port
->serial
->dev
;
470 tdev
= tport
->tp_tdev
;
472 /* only one open on any port on a device at a time */
473 if (mutex_lock_interruptible(&tdev
->td_open_close_lock
))
476 port_number
= port
->number
- port
->serial
->minor
;
479 tport
->tp_shadow_mcr
|= (TI_MCR_RTS
| TI_MCR_DTR
);
481 /* start interrupt urb the first time a port is opened on this device */
482 if (tdev
->td_open_port_count
== 0) {
483 dev_dbg(&port
->dev
, "%s - start interrupt in urb\n", __func__
);
484 urb
= tdev
->td_serial
->port
[0]->interrupt_in_urb
;
486 dev_err(&port
->dev
, "%s - no interrupt urb\n", __func__
);
491 status
= usb_submit_urb(urb
, GFP_KERNEL
);
493 dev_err(&port
->dev
, "%s - submit interrupt urb failed, %d\n", __func__
, status
);
499 ti_set_termios(tty
, port
, &tty
->termios
);
501 dev_dbg(&port
->dev
, "%s - sending TI_OPEN_PORT\n", __func__
);
502 status
= ti_command_out_sync(tdev
, TI_OPEN_PORT
,
503 (__u8
)(TI_UART1_PORT
+ port_number
), open_settings
, NULL
, 0);
505 dev_err(&port
->dev
, "%s - cannot send open command, %d\n",
510 dev_dbg(&port
->dev
, "%s - sending TI_START_PORT\n", __func__
);
511 status
= ti_command_out_sync(tdev
, TI_START_PORT
,
512 (__u8
)(TI_UART1_PORT
+ port_number
), 0, NULL
, 0);
514 dev_err(&port
->dev
, "%s - cannot send start command, %d\n",
519 dev_dbg(&port
->dev
, "%s - sending TI_PURGE_PORT\n", __func__
);
520 status
= ti_command_out_sync(tdev
, TI_PURGE_PORT
,
521 (__u8
)(TI_UART1_PORT
+ port_number
), TI_PURGE_INPUT
, NULL
, 0);
523 dev_err(&port
->dev
, "%s - cannot clear input buffers, %d\n",
527 status
= ti_command_out_sync(tdev
, TI_PURGE_PORT
,
528 (__u8
)(TI_UART1_PORT
+ port_number
), TI_PURGE_OUTPUT
, NULL
, 0);
530 dev_err(&port
->dev
, "%s - cannot clear output buffers, %d\n",
535 /* reset the data toggle on the bulk endpoints to work around bug in
536 * host controllers where things get out of sync some times */
537 usb_clear_halt(dev
, port
->write_urb
->pipe
);
538 usb_clear_halt(dev
, port
->read_urb
->pipe
);
541 ti_set_termios(tty
, port
, &tty
->termios
);
543 dev_dbg(&port
->dev
, "%s - sending TI_OPEN_PORT (2)\n", __func__
);
544 status
= ti_command_out_sync(tdev
, TI_OPEN_PORT
,
545 (__u8
)(TI_UART1_PORT
+ port_number
), open_settings
, NULL
, 0);
547 dev_err(&port
->dev
, "%s - cannot send open command (2), %d\n",
552 dev_dbg(&port
->dev
, "%s - sending TI_START_PORT (2)\n", __func__
);
553 status
= ti_command_out_sync(tdev
, TI_START_PORT
,
554 (__u8
)(TI_UART1_PORT
+ port_number
), 0, NULL
, 0);
556 dev_err(&port
->dev
, "%s - cannot send start command (2), %d\n",
562 dev_dbg(&port
->dev
, "%s - start read urb\n", __func__
);
563 urb
= port
->read_urb
;
565 dev_err(&port
->dev
, "%s - no read urb\n", __func__
);
569 tport
->tp_read_urb_state
= TI_READ_URB_RUNNING
;
570 urb
->context
= tport
;
571 status
= usb_submit_urb(urb
, GFP_KERNEL
);
573 dev_err(&port
->dev
, "%s - submit read urb failed, %d\n",
578 tport
->tp_is_open
= 1;
579 ++tdev
->td_open_port_count
;
581 port
->port
.drain_delay
= 3;
586 if (tdev
->td_open_port_count
== 0)
587 usb_kill_urb(port
->serial
->port
[0]->interrupt_in_urb
);
589 mutex_unlock(&tdev
->td_open_close_lock
);
590 dev_dbg(&port
->dev
, "%s - exit %d\n", __func__
, status
);
595 static void ti_close(struct usb_serial_port
*port
)
597 struct ti_device
*tdev
;
598 struct ti_port
*tport
;
604 tdev
= usb_get_serial_data(port
->serial
);
605 tport
= usb_get_serial_port_data(port
);
606 if (tdev
== NULL
|| tport
== NULL
)
609 tport
->tp_is_open
= 0;
611 usb_kill_urb(port
->read_urb
);
612 usb_kill_urb(port
->write_urb
);
613 tport
->tp_write_urb_in_use
= 0;
614 spin_lock_irqsave(&tport
->tp_lock
, flags
);
615 kfifo_reset_out(&tport
->write_fifo
);
616 spin_unlock_irqrestore(&tport
->tp_lock
, flags
);
618 port_number
= port
->number
- port
->serial
->minor
;
620 dev_dbg(&port
->dev
, "%s - sending TI_CLOSE_PORT\n", __func__
);
621 status
= ti_command_out_sync(tdev
, TI_CLOSE_PORT
,
622 (__u8
)(TI_UART1_PORT
+ port_number
), 0, NULL
, 0);
625 "%s - cannot send close port command, %d\n"
628 /* if mutex_lock is interrupted, continue anyway */
629 do_unlock
= !mutex_lock_interruptible(&tdev
->td_open_close_lock
);
630 --tport
->tp_tdev
->td_open_port_count
;
631 if (tport
->tp_tdev
->td_open_port_count
<= 0) {
632 /* last port is closed, shut down interrupt urb */
633 usb_kill_urb(port
->serial
->port
[0]->interrupt_in_urb
);
634 tport
->tp_tdev
->td_open_port_count
= 0;
637 mutex_unlock(&tdev
->td_open_close_lock
);
641 static int ti_write(struct tty_struct
*tty
, struct usb_serial_port
*port
,
642 const unsigned char *data
, int count
)
644 struct ti_port
*tport
= usb_get_serial_port_data(port
);
647 dev_dbg(&port
->dev
, "%s - write request of 0 bytes\n", __func__
);
651 if (tport
== NULL
|| !tport
->tp_is_open
)
654 count
= kfifo_in_locked(&tport
->write_fifo
, data
, count
,
662 static int ti_write_room(struct tty_struct
*tty
)
664 struct usb_serial_port
*port
= tty
->driver_data
;
665 struct ti_port
*tport
= usb_get_serial_port_data(port
);
672 spin_lock_irqsave(&tport
->tp_lock
, flags
);
673 room
= kfifo_avail(&tport
->write_fifo
);
674 spin_unlock_irqrestore(&tport
->tp_lock
, flags
);
676 dev_dbg(&port
->dev
, "%s - returns %d\n", __func__
, room
);
681 static int ti_chars_in_buffer(struct tty_struct
*tty
)
683 struct usb_serial_port
*port
= tty
->driver_data
;
684 struct ti_port
*tport
= usb_get_serial_port_data(port
);
693 spin_lock_irqsave(&tport
->tp_lock
, flags
);
694 chars
= kfifo_len(&tport
->write_fifo
);
695 spin_unlock_irqrestore(&tport
->tp_lock
, flags
);
698 ret
= ti_get_lsr(tport
, &lsr
);
699 if (!ret
&& !(lsr
& TI_LSR_TX_EMPTY
))
703 dev_dbg(&port
->dev
, "%s - returns %d\n", __func__
, chars
);
708 static void ti_throttle(struct tty_struct
*tty
)
710 struct usb_serial_port
*port
= tty
->driver_data
;
711 struct ti_port
*tport
= usb_get_serial_port_data(port
);
716 if (I_IXOFF(tty
) || C_CRTSCTS(tty
))
717 ti_stop_read(tport
, tty
);
722 static void ti_unthrottle(struct tty_struct
*tty
)
724 struct usb_serial_port
*port
= tty
->driver_data
;
725 struct ti_port
*tport
= usb_get_serial_port_data(port
);
731 if (I_IXOFF(tty
) || C_CRTSCTS(tty
)) {
732 status
= ti_restart_read(tport
, tty
);
734 dev_err(&port
->dev
, "%s - cannot restart read, %d\n",
739 static int ti_ioctl(struct tty_struct
*tty
,
740 unsigned int cmd
, unsigned long arg
)
742 struct usb_serial_port
*port
= tty
->driver_data
;
743 struct ti_port
*tport
= usb_get_serial_port_data(port
);
745 dev_dbg(&port
->dev
, "%s - cmd = 0x%04X\n", __func__
, cmd
);
752 dev_dbg(&port
->dev
, "%s - TIOCGSERIAL\n", __func__
);
753 return ti_get_serial_info(tport
,
754 (struct serial_struct __user
*)arg
);
756 dev_dbg(&port
->dev
, "%s - TIOCSSERIAL\n", __func__
);
757 return ti_set_serial_info(tty
, tport
,
758 (struct serial_struct __user
*)arg
);
764 static void ti_set_termios(struct tty_struct
*tty
,
765 struct usb_serial_port
*port
, struct ktermios
*old_termios
)
767 struct ti_port
*tport
= usb_get_serial_port_data(port
);
768 struct ti_uart_config
*config
;
769 tcflag_t cflag
, iflag
;
772 int port_number
= port
->number
- port
->serial
->minor
;
775 cflag
= tty
->termios
.c_cflag
;
776 iflag
= tty
->termios
.c_iflag
;
778 dev_dbg(&port
->dev
, "%s - cflag %08x, iflag %08x\n", __func__
, cflag
, iflag
);
779 dev_dbg(&port
->dev
, "%s - old clfag %08x, old iflag %08x\n", __func__
,
780 old_termios
->c_cflag
, old_termios
->c_iflag
);
785 config
= kmalloc(sizeof(*config
), GFP_KERNEL
);
787 dev_err(&port
->dev
, "%s - out of memory\n", __func__
);
793 /* these flags must be set */
794 config
->wFlags
|= TI_UART_ENABLE_MS_INTS
;
795 config
->wFlags
|= TI_UART_ENABLE_AUTO_START_DMA
;
796 config
->bUartMode
= (__u8
)(tport
->tp_uart_mode
);
798 switch (cflag
& CSIZE
) {
800 config
->bDataBits
= TI_UART_5_DATA_BITS
;
803 config
->bDataBits
= TI_UART_6_DATA_BITS
;
806 config
->bDataBits
= TI_UART_7_DATA_BITS
;
810 config
->bDataBits
= TI_UART_8_DATA_BITS
;
814 /* CMSPAR isn't supported by this driver */
815 tty
->termios
.c_cflag
&= ~CMSPAR
;
817 if (cflag
& PARENB
) {
818 if (cflag
& PARODD
) {
819 config
->wFlags
|= TI_UART_ENABLE_PARITY_CHECKING
;
820 config
->bParity
= TI_UART_ODD_PARITY
;
822 config
->wFlags
|= TI_UART_ENABLE_PARITY_CHECKING
;
823 config
->bParity
= TI_UART_EVEN_PARITY
;
826 config
->wFlags
&= ~TI_UART_ENABLE_PARITY_CHECKING
;
827 config
->bParity
= TI_UART_NO_PARITY
;
831 config
->bStopBits
= TI_UART_2_STOP_BITS
;
833 config
->bStopBits
= TI_UART_1_STOP_BITS
;
835 if (cflag
& CRTSCTS
) {
836 /* RTS flow control must be off to drop RTS for baud rate B0 */
837 if ((cflag
& CBAUD
) != B0
)
838 config
->wFlags
|= TI_UART_ENABLE_RTS_IN
;
839 config
->wFlags
|= TI_UART_ENABLE_CTS_OUT
;
842 ti_restart_read(tport
, tty
);
845 if (I_IXOFF(tty
) || I_IXON(tty
)) {
846 config
->cXon
= START_CHAR(tty
);
847 config
->cXoff
= STOP_CHAR(tty
);
850 config
->wFlags
|= TI_UART_ENABLE_X_IN
;
852 ti_restart_read(tport
, tty
);
855 config
->wFlags
|= TI_UART_ENABLE_X_OUT
;
858 baud
= tty_get_baud_rate(tty
);
861 if (tport
->tp_tdev
->td_is_3410
)
862 config
->wBaudRate
= (__u16
)((923077 + baud
/2) / baud
);
864 config
->wBaudRate
= (__u16
)((461538 + baud
/2) / baud
);
866 /* FIXME: Should calculate resulting baud here and report it back */
867 if ((cflag
& CBAUD
) != B0
)
868 tty_encode_baud_rate(tty
, baud
, baud
);
871 "%s - BaudRate=%d, wBaudRate=%d, wFlags=0x%04X, bDataBits=%d, bParity=%d, bStopBits=%d, cXon=%d, cXoff=%d, bUartMode=%d",
872 __func__
, baud
, config
->wBaudRate
, config
->wFlags
,
873 config
->bDataBits
, config
->bParity
, config
->bStopBits
,
874 config
->cXon
, config
->cXoff
, config
->bUartMode
);
876 cpu_to_be16s(&config
->wBaudRate
);
877 cpu_to_be16s(&config
->wFlags
);
879 status
= ti_command_out_sync(tport
->tp_tdev
, TI_SET_CONFIG
,
880 (__u8
)(TI_UART1_PORT
+ port_number
), 0, (__u8
*)config
,
883 dev_err(&port
->dev
, "%s - cannot set config on port %d, %d\n",
884 __func__
, port_number
, status
);
886 /* SET_CONFIG asserts RTS and DTR, reset them correctly */
887 mcr
= tport
->tp_shadow_mcr
;
888 /* if baud rate is B0, clear RTS and DTR */
889 if ((cflag
& CBAUD
) == B0
)
890 mcr
&= ~(TI_MCR_DTR
| TI_MCR_RTS
);
891 status
= ti_set_mcr(tport
, mcr
);
894 "%s - cannot set modem control on port %d, %d\n",
895 __func__
, port_number
, status
);
901 static int ti_tiocmget(struct tty_struct
*tty
)
903 struct usb_serial_port
*port
= tty
->driver_data
;
904 struct ti_port
*tport
= usb_get_serial_port_data(port
);
913 spin_lock_irqsave(&tport
->tp_lock
, flags
);
915 mcr
= tport
->tp_shadow_mcr
;
916 spin_unlock_irqrestore(&tport
->tp_lock
, flags
);
918 result
= ((mcr
& TI_MCR_DTR
) ? TIOCM_DTR
: 0)
919 | ((mcr
& TI_MCR_RTS
) ? TIOCM_RTS
: 0)
920 | ((mcr
& TI_MCR_LOOP
) ? TIOCM_LOOP
: 0)
921 | ((msr
& TI_MSR_CTS
) ? TIOCM_CTS
: 0)
922 | ((msr
& TI_MSR_CD
) ? TIOCM_CAR
: 0)
923 | ((msr
& TI_MSR_RI
) ? TIOCM_RI
: 0)
924 | ((msr
& TI_MSR_DSR
) ? TIOCM_DSR
: 0);
926 dev_dbg(&port
->dev
, "%s - 0x%04X\n", __func__
, result
);
932 static int ti_tiocmset(struct tty_struct
*tty
,
933 unsigned int set
, unsigned int clear
)
935 struct usb_serial_port
*port
= tty
->driver_data
;
936 struct ti_port
*tport
= usb_get_serial_port_data(port
);
943 spin_lock_irqsave(&tport
->tp_lock
, flags
);
944 mcr
= tport
->tp_shadow_mcr
;
950 if (set
& TIOCM_LOOP
)
953 if (clear
& TIOCM_RTS
)
955 if (clear
& TIOCM_DTR
)
957 if (clear
& TIOCM_LOOP
)
959 spin_unlock_irqrestore(&tport
->tp_lock
, flags
);
961 return ti_set_mcr(tport
, mcr
);
965 static void ti_break(struct tty_struct
*tty
, int break_state
)
967 struct usb_serial_port
*port
= tty
->driver_data
;
968 struct ti_port
*tport
= usb_get_serial_port_data(port
);
971 dev_dbg(&port
->dev
, "%s - state = %d\n", __func__
, break_state
);
976 status
= ti_write_byte(port
, tport
->tp_tdev
,
977 tport
->tp_uart_base_addr
+ TI_UART_OFFSET_LCR
,
978 TI_LCR_BREAK
, break_state
== -1 ? TI_LCR_BREAK
: 0);
981 dev_dbg(&port
->dev
, "%s - error setting break, %d\n", __func__
, status
);
985 static void ti_interrupt_callback(struct urb
*urb
)
987 struct ti_device
*tdev
= urb
->context
;
988 struct usb_serial_port
*port
;
989 struct usb_serial
*serial
= tdev
->td_serial
;
990 struct ti_port
*tport
;
991 struct device
*dev
= &urb
->dev
->dev
;
992 unsigned char *data
= urb
->transfer_buffer
;
993 int length
= urb
->actual_length
;
996 int status
= urb
->status
;
1006 dev_dbg(dev
, "%s - urb shutting down, %d\n", __func__
, status
);
1007 tdev
->td_urb_error
= 1;
1010 dev_err(dev
, "%s - nonzero urb status, %d\n", __func__
, status
);
1011 tdev
->td_urb_error
= 1;
1016 dev_dbg(dev
, "%s - bad packet size, %d\n", __func__
, length
);
1020 if (data
[0] == TI_CODE_HARDWARE_ERROR
) {
1021 dev_err(dev
, "%s - hardware error, %d\n", __func__
, data
[1]);
1025 port_number
= TI_GET_PORT_FROM_CODE(data
[0]);
1026 function
= TI_GET_FUNC_FROM_CODE(data
[0]);
1028 dev_dbg(dev
, "%s - port_number %d, function %d, data 0x%02X\n",
1029 __func__
, port_number
, function
, data
[1]);
1031 if (port_number
>= serial
->num_ports
) {
1032 dev_err(dev
, "%s - bad port number, %d\n",
1033 __func__
, port_number
);
1037 port
= serial
->port
[port_number
];
1039 tport
= usb_get_serial_port_data(port
);
1044 case TI_CODE_DATA_ERROR
:
1045 dev_err(dev
, "%s - DATA ERROR, port %d, data 0x%02X\n",
1046 __func__
, port_number
, data
[1]);
1049 case TI_CODE_MODEM_STATUS
:
1051 dev_dbg(dev
, "%s - port %d, msr 0x%02X\n", __func__
, port_number
, msr
);
1052 ti_handle_new_msr(tport
, msr
);
1056 dev_err(dev
, "%s - unknown interrupt code, 0x%02X\n",
1062 retval
= usb_submit_urb(urb
, GFP_ATOMIC
);
1064 dev_err(dev
, "%s - resubmit interrupt urb failed, %d\n",
1069 static void ti_bulk_in_callback(struct urb
*urb
)
1071 struct ti_port
*tport
= urb
->context
;
1072 struct usb_serial_port
*port
= tport
->tp_port
;
1073 struct device
*dev
= &urb
->dev
->dev
;
1074 int status
= urb
->status
;
1083 dev_dbg(dev
, "%s - urb shutting down, %d\n", __func__
, status
);
1084 tport
->tp_tdev
->td_urb_error
= 1;
1085 wake_up_interruptible(&tport
->tp_write_wait
);
1088 dev_err(dev
, "%s - nonzero urb status, %d\n",
1090 tport
->tp_tdev
->td_urb_error
= 1;
1091 wake_up_interruptible(&tport
->tp_write_wait
);
1094 if (status
== -EPIPE
)
1098 dev_err(dev
, "%s - stopping read!\n", __func__
);
1102 if (urb
->actual_length
) {
1103 usb_serial_debug_data(dev
, __func__
, urb
->actual_length
,
1104 urb
->transfer_buffer
);
1106 if (!tport
->tp_is_open
)
1107 dev_dbg(dev
, "%s - port closed, dropping data\n",
1110 ti_recv(port
, urb
->transfer_buffer
, urb
->actual_length
);
1111 spin_lock(&tport
->tp_lock
);
1112 port
->icount
.rx
+= urb
->actual_length
;
1113 spin_unlock(&tport
->tp_lock
);
1117 /* continue to read unless stopping */
1118 spin_lock(&tport
->tp_lock
);
1119 if (tport
->tp_read_urb_state
== TI_READ_URB_RUNNING
)
1120 retval
= usb_submit_urb(urb
, GFP_ATOMIC
);
1121 else if (tport
->tp_read_urb_state
== TI_READ_URB_STOPPING
)
1122 tport
->tp_read_urb_state
= TI_READ_URB_STOPPED
;
1124 spin_unlock(&tport
->tp_lock
);
1126 dev_err(dev
, "%s - resubmit read urb failed, %d\n",
1131 static void ti_bulk_out_callback(struct urb
*urb
)
1133 struct ti_port
*tport
= urb
->context
;
1134 struct usb_serial_port
*port
= tport
->tp_port
;
1135 int status
= urb
->status
;
1137 tport
->tp_write_urb_in_use
= 0;
1145 dev_dbg(&port
->dev
, "%s - urb shutting down, %d\n", __func__
, status
);
1146 tport
->tp_tdev
->td_urb_error
= 1;
1147 wake_up_interruptible(&tport
->tp_write_wait
);
1150 dev_err_console(port
, "%s - nonzero urb status, %d\n",
1152 tport
->tp_tdev
->td_urb_error
= 1;
1153 wake_up_interruptible(&tport
->tp_write_wait
);
1156 /* send any buffered data */
1161 static void ti_recv(struct usb_serial_port
*port
, unsigned char *data
,
1167 cnt
= tty_insert_flip_string(&port
->port
, data
, length
);
1169 dev_err(&port
->dev
, "%s - dropping data, %d bytes lost\n",
1170 __func__
, length
- cnt
);
1174 tty_flip_buffer_push(&port
->port
);
1177 } while (length
> 0);
1181 static void ti_send(struct ti_port
*tport
)
1184 struct usb_serial_port
*port
= tport
->tp_port
;
1185 unsigned long flags
;
1187 spin_lock_irqsave(&tport
->tp_lock
, flags
);
1189 if (tport
->tp_write_urb_in_use
)
1192 count
= kfifo_out(&tport
->write_fifo
,
1193 port
->write_urb
->transfer_buffer
,
1194 port
->bulk_out_size
);
1199 tport
->tp_write_urb_in_use
= 1;
1201 spin_unlock_irqrestore(&tport
->tp_lock
, flags
);
1203 usb_serial_debug_data(&port
->dev
, __func__
, count
,
1204 port
->write_urb
->transfer_buffer
);
1206 usb_fill_bulk_urb(port
->write_urb
, port
->serial
->dev
,
1207 usb_sndbulkpipe(port
->serial
->dev
,
1208 port
->bulk_out_endpointAddress
),
1209 port
->write_urb
->transfer_buffer
, count
,
1210 ti_bulk_out_callback
, tport
);
1212 result
= usb_submit_urb(port
->write_urb
, GFP_ATOMIC
);
1214 dev_err_console(port
, "%s - submit write urb failed, %d\n",
1216 tport
->tp_write_urb_in_use
= 0;
1217 /* TODO: reschedule ti_send */
1219 spin_lock_irqsave(&tport
->tp_lock
, flags
);
1220 port
->icount
.tx
+= count
;
1221 spin_unlock_irqrestore(&tport
->tp_lock
, flags
);
1224 /* more room in the buffer for new writes, wakeup */
1225 tty_port_tty_wakeup(&port
->port
);
1227 wake_up_interruptible(&tport
->tp_write_wait
);
1230 spin_unlock_irqrestore(&tport
->tp_lock
, flags
);
1235 static int ti_set_mcr(struct ti_port
*tport
, unsigned int mcr
)
1237 unsigned long flags
;
1240 status
= ti_write_byte(tport
->tp_port
, tport
->tp_tdev
,
1241 tport
->tp_uart_base_addr
+ TI_UART_OFFSET_MCR
,
1242 TI_MCR_RTS
| TI_MCR_DTR
| TI_MCR_LOOP
, mcr
);
1244 spin_lock_irqsave(&tport
->tp_lock
, flags
);
1246 tport
->tp_shadow_mcr
= mcr
;
1247 spin_unlock_irqrestore(&tport
->tp_lock
, flags
);
1253 static int ti_get_lsr(struct ti_port
*tport
, u8
*lsr
)
1256 struct ti_device
*tdev
= tport
->tp_tdev
;
1257 struct usb_serial_port
*port
= tport
->tp_port
;
1258 int port_number
= port
->number
- port
->serial
->minor
;
1259 struct ti_port_status
*data
;
1261 size
= sizeof(struct ti_port_status
);
1262 data
= kmalloc(size
, GFP_KERNEL
);
1264 dev_err(&port
->dev
, "%s - out of memory\n", __func__
);
1268 status
= ti_command_in_sync(tdev
, TI_GET_PORT_STATUS
,
1269 (__u8
)(TI_UART1_PORT
+port_number
), 0, (__u8
*)data
, size
);
1272 "%s - get port status command failed, %d\n",
1277 dev_dbg(&port
->dev
, "%s - lsr 0x%02X\n", __func__
, data
->bLSR
);
1287 static int ti_get_serial_info(struct ti_port
*tport
,
1288 struct serial_struct __user
*ret_arg
)
1290 struct usb_serial_port
*port
= tport
->tp_port
;
1291 struct serial_struct ret_serial
;
1297 cwait
= port
->port
.closing_wait
;
1298 if (cwait
!= ASYNC_CLOSING_WAIT_NONE
)
1299 cwait
= jiffies_to_msecs(cwait
) / 10;
1301 memset(&ret_serial
, 0, sizeof(ret_serial
));
1303 ret_serial
.type
= PORT_16550A
;
1304 ret_serial
.line
= port
->serial
->minor
;
1305 ret_serial
.port
= port
->number
- port
->serial
->minor
;
1306 ret_serial
.flags
= tport
->tp_flags
;
1307 ret_serial
.xmit_fifo_size
= TI_WRITE_BUF_SIZE
;
1308 ret_serial
.baud_base
= tport
->tp_tdev
->td_is_3410
? 921600 : 460800;
1309 ret_serial
.closing_wait
= cwait
;
1311 if (copy_to_user(ret_arg
, &ret_serial
, sizeof(*ret_arg
)))
1318 static int ti_set_serial_info(struct tty_struct
*tty
, struct ti_port
*tport
,
1319 struct serial_struct __user
*new_arg
)
1321 struct serial_struct new_serial
;
1324 if (copy_from_user(&new_serial
, new_arg
, sizeof(new_serial
)))
1327 cwait
= new_serial
.closing_wait
;
1328 if (cwait
!= ASYNC_CLOSING_WAIT_NONE
)
1329 cwait
= msecs_to_jiffies(10 * new_serial
.closing_wait
);
1331 tport
->tp_flags
= new_serial
.flags
& TI_SET_SERIAL_FLAGS
;
1332 tport
->tp_port
->port
.closing_wait
= cwait
;
1338 static void ti_handle_new_msr(struct ti_port
*tport
, __u8 msr
)
1340 struct async_icount
*icount
;
1341 struct tty_struct
*tty
;
1342 unsigned long flags
;
1344 dev_dbg(&tport
->tp_port
->dev
, "%s - msr 0x%02X\n", __func__
, msr
);
1346 if (msr
& TI_MSR_DELTA_MASK
) {
1347 spin_lock_irqsave(&tport
->tp_lock
, flags
);
1348 icount
= &tport
->tp_port
->icount
;
1349 if (msr
& TI_MSR_DELTA_CTS
)
1351 if (msr
& TI_MSR_DELTA_DSR
)
1353 if (msr
& TI_MSR_DELTA_CD
)
1355 if (msr
& TI_MSR_DELTA_RI
)
1357 wake_up_interruptible(&tport
->tp_port
->port
.delta_msr_wait
);
1358 spin_unlock_irqrestore(&tport
->tp_lock
, flags
);
1361 tport
->tp_msr
= msr
& TI_MSR_MASK
;
1363 /* handle CTS flow control */
1364 tty
= tty_port_tty_get(&tport
->tp_port
->port
);
1365 if (tty
&& C_CRTSCTS(tty
)) {
1366 if (msr
& TI_MSR_CTS
) {
1367 tty
->hw_stopped
= 0;
1370 tty
->hw_stopped
= 1;
1377 static void ti_stop_read(struct ti_port
*tport
, struct tty_struct
*tty
)
1379 unsigned long flags
;
1381 spin_lock_irqsave(&tport
->tp_lock
, flags
);
1383 if (tport
->tp_read_urb_state
== TI_READ_URB_RUNNING
)
1384 tport
->tp_read_urb_state
= TI_READ_URB_STOPPING
;
1386 spin_unlock_irqrestore(&tport
->tp_lock
, flags
);
1390 static int ti_restart_read(struct ti_port
*tport
, struct tty_struct
*tty
)
1394 unsigned long flags
;
1396 spin_lock_irqsave(&tport
->tp_lock
, flags
);
1398 if (tport
->tp_read_urb_state
== TI_READ_URB_STOPPED
) {
1399 tport
->tp_read_urb_state
= TI_READ_URB_RUNNING
;
1400 urb
= tport
->tp_port
->read_urb
;
1401 spin_unlock_irqrestore(&tport
->tp_lock
, flags
);
1402 urb
->context
= tport
;
1403 status
= usb_submit_urb(urb
, GFP_KERNEL
);
1405 tport
->tp_read_urb_state
= TI_READ_URB_RUNNING
;
1406 spin_unlock_irqrestore(&tport
->tp_lock
, flags
);
1413 static int ti_command_out_sync(struct ti_device
*tdev
, __u8 command
,
1414 __u16 moduleid
, __u16 value
, __u8
*data
, int size
)
1418 status
= usb_control_msg(tdev
->td_serial
->dev
,
1419 usb_sndctrlpipe(tdev
->td_serial
->dev
, 0), command
,
1420 (USB_TYPE_VENDOR
| USB_RECIP_DEVICE
| USB_DIR_OUT
),
1421 value
, moduleid
, data
, size
, 1000);
1433 static int ti_command_in_sync(struct ti_device
*tdev
, __u8 command
,
1434 __u16 moduleid
, __u16 value
, __u8
*data
, int size
)
1438 status
= usb_control_msg(tdev
->td_serial
->dev
,
1439 usb_rcvctrlpipe(tdev
->td_serial
->dev
, 0), command
,
1440 (USB_TYPE_VENDOR
| USB_RECIP_DEVICE
| USB_DIR_IN
),
1441 value
, moduleid
, data
, size
, 1000);
1453 static int ti_write_byte(struct usb_serial_port
*port
,
1454 struct ti_device
*tdev
, unsigned long addr
,
1455 __u8 mask
, __u8 byte
)
1459 struct ti_write_data_bytes
*data
;
1461 dev_dbg(&port
->dev
, "%s - addr 0x%08lX, mask 0x%02X, byte 0x%02X\n", __func__
,
1464 size
= sizeof(struct ti_write_data_bytes
) + 2;
1465 data
= kmalloc(size
, GFP_KERNEL
);
1467 dev_err(&port
->dev
, "%s - out of memory\n", __func__
);
1471 data
->bAddrType
= TI_RW_DATA_ADDR_XDATA
;
1472 data
->bDataType
= TI_RW_DATA_BYTE
;
1473 data
->bDataCounter
= 1;
1474 data
->wBaseAddrHi
= cpu_to_be16(addr
>>16);
1475 data
->wBaseAddrLo
= cpu_to_be16(addr
);
1476 data
->bData
[0] = mask
;
1477 data
->bData
[1] = byte
;
1479 status
= ti_command_out_sync(tdev
, TI_WRITE_DATA
, TI_RAM_PORT
, 0,
1480 (__u8
*)data
, size
);
1483 dev_err(&port
->dev
, "%s - failed, %d\n", __func__
, status
);
1490 static int ti_do_download(struct usb_device
*dev
, int pipe
,
1491 u8
*buffer
, int size
)
1496 struct ti_firmware_header
*header
;
1500 for (pos
= sizeof(struct ti_firmware_header
); pos
< size
; pos
++)
1501 cs
= (__u8
)(cs
+ buffer
[pos
]);
1503 header
= (struct ti_firmware_header
*)buffer
;
1504 header
->wLength
= cpu_to_le16((__u16
)(size
1505 - sizeof(struct ti_firmware_header
)));
1506 header
->bCheckSum
= cs
;
1508 dev_dbg(&dev
->dev
, "%s - downloading firmware\n", __func__
);
1509 for (pos
= 0; pos
< size
; pos
+= done
) {
1510 len
= min(size
- pos
, TI_DOWNLOAD_MAX_PACKET_SIZE
);
1511 status
= usb_bulk_msg(dev
, pipe
, buffer
+ pos
, len
,
1519 static int ti_download_firmware(struct ti_device
*tdev
)
1524 struct usb_device
*dev
= tdev
->td_serial
->dev
;
1525 unsigned int pipe
= usb_sndbulkpipe(dev
,
1526 tdev
->td_serial
->port
[0]->bulk_out_endpointAddress
);
1527 const struct firmware
*fw_p
;
1530 /* try ID specific firmware first, then try generic firmware */
1531 sprintf(buf
, "ti_usb-v%04x-p%04x.fw", dev
->descriptor
.idVendor
,
1532 dev
->descriptor
.idProduct
);
1533 status
= request_firmware(&fw_p
, buf
, &dev
->dev
);
1537 if (dev
->descriptor
.idVendor
== MTS_VENDOR_ID
) {
1538 switch (dev
->descriptor
.idProduct
) {
1539 case MTS_CDMA_PRODUCT_ID
:
1540 strcpy(buf
, "mts_cdma.fw");
1542 case MTS_GSM_PRODUCT_ID
:
1543 strcpy(buf
, "mts_gsm.fw");
1545 case MTS_EDGE_PRODUCT_ID
:
1546 strcpy(buf
, "mts_edge.fw");
1548 case MTS_MT9234MU_PRODUCT_ID
:
1549 strcpy(buf
, "mts_mt9234mu.fw");
1551 case MTS_MT9234ZBA_PRODUCT_ID
:
1552 strcpy(buf
, "mts_mt9234zba.fw");
1554 case MTS_MT9234ZBAOLD_PRODUCT_ID
:
1555 strcpy(buf
, "mts_mt9234zba.fw");
1558 if (buf
[0] == '\0') {
1559 if (tdev
->td_is_3410
)
1560 strcpy(buf
, "ti_3410.fw");
1562 strcpy(buf
, "ti_5052.fw");
1564 status
= request_firmware(&fw_p
, buf
, &dev
->dev
);
1567 dev_err(&dev
->dev
, "%s - firmware not found\n", __func__
);
1570 if (fw_p
->size
> TI_FIRMWARE_BUF_SIZE
) {
1571 dev_err(&dev
->dev
, "%s - firmware too large %zu\n", __func__
, fw_p
->size
);
1572 release_firmware(fw_p
);
1576 buffer_size
= TI_FIRMWARE_BUF_SIZE
+ sizeof(struct ti_firmware_header
);
1577 buffer
= kmalloc(buffer_size
, GFP_KERNEL
);
1579 memcpy(buffer
, fw_p
->data
, fw_p
->size
);
1580 memset(buffer
+ fw_p
->size
, 0xff, buffer_size
- fw_p
->size
);
1581 status
= ti_do_download(dev
, pipe
, buffer
, fw_p
->size
);
1584 dev_dbg(&dev
->dev
, "%s ENOMEM\n", __func__
);
1587 release_firmware(fw_p
);
1589 dev_err(&dev
->dev
, "%s - error downloading firmware, %d\n",
1594 dev_dbg(&dev
->dev
, "%s - download successful\n", __func__
);