2 * Edgeport USB Serial Converter driver
4 * Copyright (C) 2000 Inside Out Networks, All rights reserved.
5 * Copyright (C) 2001-2002 Greg Kroah-Hartman <greg@kroah.com>
7 * This program is free software; you can redistribute it and/or modify
8 * it under the terms of the GNU General Public License as published by
9 * the Free Software Foundation; either version 2 of the License, or
10 * (at your option) any later version.
12 * Supports the following devices:
26 * For questions or problems with this driver, contact Inside Out
27 * Networks technical support, or Peter Berger <pberger@brimson.com>,
28 * or Al Borchers <alborchers@steinerpoint.com>.
32 #include <linux/kernel.h>
33 #include <linux/jiffies.h>
34 #include <linux/errno.h>
35 #include <linux/slab.h>
36 #include <linux/tty.h>
37 #include <linux/tty_driver.h>
38 #include <linux/tty_flip.h>
39 #include <linux/module.h>
40 #include <linux/spinlock.h>
41 #include <linux/serial.h>
42 #include <linux/ioctl.h>
43 #include <linux/wait.h>
44 #include <linux/firmware.h>
45 #include <linux/ihex.h>
46 #include <linux/uaccess.h>
47 #include <linux/usb.h>
48 #include <linux/usb/serial.h>
49 #include "io_edgeport.h"
50 #include "io_ionsp.h" /* info for the iosp messages */
51 #include "io_16654.h" /* 16654 UART defines */
53 #define DRIVER_AUTHOR "Greg Kroah-Hartman <greg@kroah.com> and David Iacovelli"
54 #define DRIVER_DESC "Edgeport USB Serial Driver"
56 #define MAX_NAME_LEN 64
58 #define OPEN_TIMEOUT (5*HZ) /* 5 seconds */
60 /* receive port state */
62 EXPECT_HDR1 = 0, /* Expect header byte 1 */
63 EXPECT_HDR2 = 1, /* Expect header byte 2 */
64 EXPECT_DATA = 2, /* Expect 'RxBytesRemaining' data */
65 EXPECT_HDR3 = 3, /* Expect header byte 3 (for status hdrs only) */
70 * This Transmit queue is an extension of the edgeport Rx buffer.
71 * The maximum amount of data buffered in both the edgeport
72 * Rx buffer (maxTxCredits) and this buffer will never exceed maxTxCredits.
75 unsigned int head; /* index to head pointer (write) */
76 unsigned int tail; /* index to tail pointer (read) */
77 unsigned int count; /* Bytes in queue */
78 unsigned int size; /* Max size of queue (equal to Max number of TxCredits) */
79 unsigned char *fifo; /* allocated Buffer */
82 /* This structure holds all of the local port information */
83 struct edgeport_port {
84 __u16 txCredits; /* our current credits for this port */
85 __u16 maxTxCredits; /* the max size of the port */
87 struct TxFifo txfifo; /* transmit fifo -- size will be maxTxCredits */
88 struct urb *write_urb; /* write URB for this port */
89 bool write_in_progress; /* 'true' while a write URB is outstanding */
92 __u8 shadowLCR; /* last LCR value received */
93 __u8 shadowMCR; /* last MCR value received */
94 __u8 shadowMSR; /* last MSR value received */
95 __u8 shadowLSR; /* last LSR value received */
96 __u8 shadowXonChar; /* last value set as XON char in Edgeport */
97 __u8 shadowXoffChar; /* last value set as XOFF char in Edgeport */
105 bool chaseResponsePending;
107 wait_queue_head_t wait_chase; /* for handling sleeping while waiting for chase to finish */
108 wait_queue_head_t wait_open; /* for handling sleeping while waiting for open to finish */
109 wait_queue_head_t wait_command; /* for handling sleeping while waiting for command to finish */
111 struct usb_serial_port *port; /* loop back to the owner of this object */
115 /* This structure holds all of the individual device information */
116 struct edgeport_serial {
117 char name[MAX_NAME_LEN+2]; /* string name of this device */
119 struct edge_manuf_descriptor manuf_descriptor; /* the manufacturer descriptor */
120 struct edge_boot_descriptor boot_descriptor; /* the boot firmware descriptor */
121 struct edgeport_product_info product_info; /* Product Info */
122 struct edge_compatibility_descriptor epic_descriptor; /* Edgeport compatible descriptor */
123 int is_epic; /* flag if EPiC device or not */
125 __u8 interrupt_in_endpoint; /* the interrupt endpoint handle */
126 unsigned char *interrupt_in_buffer; /* the buffer we use for the interrupt endpoint */
127 struct urb *interrupt_read_urb; /* our interrupt urb */
129 __u8 bulk_in_endpoint; /* the bulk in endpoint handle */
130 unsigned char *bulk_in_buffer; /* the buffer we use for the bulk in endpoint */
131 struct urb *read_urb; /* our bulk read urb */
132 bool read_in_progress;
135 __u8 bulk_out_endpoint; /* the bulk out endpoint handle */
137 __s16 rxBytesAvail; /* the number of bytes that we need to read from this device */
139 enum RXSTATE rxState; /* the current state of the bulk receive processor */
140 __u8 rxHeader1; /* receive header byte 1 */
141 __u8 rxHeader2; /* receive header byte 2 */
142 __u8 rxHeader3; /* receive header byte 3 */
143 __u8 rxPort; /* the port that we are currently receiving data for */
144 __u8 rxStatusCode; /* the receive status code */
145 __u8 rxStatusParam; /* the receive status paramater */
146 __s16 rxBytesRemaining; /* the number of port bytes left to read */
147 struct usb_serial *serial; /* loop back to the owner of this object */
150 /* baud rate information */
151 struct divisor_table_entry {
157 * Define table of divisors for Rev A EdgePort/4 hardware
158 * These assume a 3.6864MHz crystal, the standard /16, and
162 static const struct divisor_table_entry divisor_table[] = {
165 { 110, 2095}, /* 2094.545455 => 230450 => .0217 % over */
166 { 134, 1713}, /* 1713.011152 => 230398.5 => .00065% under */
184 /* Number of outstanding Command Write Urbs */
185 static atomic_t CmdUrbs = ATOMIC_INIT(0);
188 /* local function prototypes */
190 /* function prototypes for all URB callbacks */
191 static void edge_interrupt_callback(struct urb *urb);
192 static void edge_bulk_in_callback(struct urb *urb);
193 static void edge_bulk_out_data_callback(struct urb *urb);
194 static void edge_bulk_out_cmd_callback(struct urb *urb);
196 /* function prototypes for the usbserial callbacks */
197 static int edge_open(struct tty_struct *tty, struct usb_serial_port *port);
198 static void edge_close(struct usb_serial_port *port);
199 static int edge_write(struct tty_struct *tty, struct usb_serial_port *port,
200 const unsigned char *buf, int count);
201 static int edge_write_room(struct tty_struct *tty);
202 static int edge_chars_in_buffer(struct tty_struct *tty);
203 static void edge_throttle(struct tty_struct *tty);
204 static void edge_unthrottle(struct tty_struct *tty);
205 static void edge_set_termios(struct tty_struct *tty,
206 struct usb_serial_port *port,
207 struct ktermios *old_termios);
208 static int edge_ioctl(struct tty_struct *tty,
209 unsigned int cmd, unsigned long arg);
210 static void edge_break(struct tty_struct *tty, int break_state);
211 static int edge_tiocmget(struct tty_struct *tty);
212 static int edge_tiocmset(struct tty_struct *tty,
213 unsigned int set, unsigned int clear);
214 static int edge_startup(struct usb_serial *serial);
215 static void edge_disconnect(struct usb_serial *serial);
216 static void edge_release(struct usb_serial *serial);
217 static int edge_port_probe(struct usb_serial_port *port);
218 static int edge_port_remove(struct usb_serial_port *port);
220 #include "io_tables.h" /* all of the devices that this driver supports */
222 /* function prototypes for all of our local functions */
224 static void process_rcvd_data(struct edgeport_serial *edge_serial,
225 unsigned char *buffer, __u16 bufferLength);
226 static void process_rcvd_status(struct edgeport_serial *edge_serial,
227 __u8 byte2, __u8 byte3);
228 static void edge_tty_recv(struct usb_serial_port *port, unsigned char *data,
230 static void handle_new_msr(struct edgeport_port *edge_port, __u8 newMsr);
231 static void handle_new_lsr(struct edgeport_port *edge_port, __u8 lsrData,
232 __u8 lsr, __u8 data);
233 static int send_iosp_ext_cmd(struct edgeport_port *edge_port, __u8 command,
235 static int calc_baud_rate_divisor(struct device *dev, int baud_rate, int *divisor);
236 static int send_cmd_write_baud_rate(struct edgeport_port *edge_port,
238 static void change_port_settings(struct tty_struct *tty,
239 struct edgeport_port *edge_port,
240 struct ktermios *old_termios);
241 static int send_cmd_write_uart_register(struct edgeport_port *edge_port,
242 __u8 regNum, __u8 regValue);
243 static int write_cmd_usb(struct edgeport_port *edge_port,
244 unsigned char *buffer, int writeLength);
245 static void send_more_port_data(struct edgeport_serial *edge_serial,
246 struct edgeport_port *edge_port);
248 static int sram_write(struct usb_serial *serial, __u16 extAddr, __u16 addr,
249 __u16 length, const __u8 *data);
250 static int rom_read(struct usb_serial *serial, __u16 extAddr, __u16 addr,
251 __u16 length, __u8 *data);
252 static int rom_write(struct usb_serial *serial, __u16 extAddr, __u16 addr,
253 __u16 length, const __u8 *data);
254 static void get_manufacturing_desc(struct edgeport_serial *edge_serial);
255 static void get_boot_desc(struct edgeport_serial *edge_serial);
256 static void load_application_firmware(struct edgeport_serial *edge_serial);
258 static void unicode_to_ascii(char *string, int buflen,
259 __le16 *unicode, int unicode_size);
262 /* ************************************************************************ */
263 /* ************************************************************************ */
264 /* ************************************************************************ */
265 /* ************************************************************************ */
267 /************************************************************************
269 * update_edgeport_E2PROM() Compare current versions of *
270 * Boot ROM and Manufacture *
271 * Descriptors with versions *
272 * embedded in this driver *
274 ************************************************************************/
275 static void update_edgeport_E2PROM(struct edgeport_serial *edge_serial)
277 struct device *dev = &edge_serial->serial->dev->dev;
280 __u8 BootMajorVersion;
281 __u8 BootMinorVersion;
282 __u16 BootBuildNumber;
284 const struct ihex_binrec *rec;
285 const struct firmware *fw;
289 switch (edge_serial->product_info.iDownloadFile) {
290 case EDGE_DOWNLOAD_FILE_I930:
291 fw_name = "edgeport/boot.fw";
293 case EDGE_DOWNLOAD_FILE_80251:
294 fw_name = "edgeport/boot2.fw";
300 response = request_ihex_firmware(&fw, fw_name,
301 &edge_serial->serial->dev->dev);
303 dev_err(dev, "Failed to load image \"%s\" err %d\n",
308 rec = (const struct ihex_binrec *)fw->data;
309 BootMajorVersion = rec->data[0];
310 BootMinorVersion = rec->data[1];
311 BootBuildNumber = (rec->data[2] << 8) | rec->data[3];
313 /* Check Boot Image Version */
314 BootCurVer = (edge_serial->boot_descriptor.MajorVersion << 24) +
315 (edge_serial->boot_descriptor.MinorVersion << 16) +
316 le16_to_cpu(edge_serial->boot_descriptor.BuildNumber);
318 BootNewVer = (BootMajorVersion << 24) +
319 (BootMinorVersion << 16) +
322 dev_dbg(dev, "Current Boot Image version %d.%d.%d\n",
323 edge_serial->boot_descriptor.MajorVersion,
324 edge_serial->boot_descriptor.MinorVersion,
325 le16_to_cpu(edge_serial->boot_descriptor.BuildNumber));
328 if (BootNewVer > BootCurVer) {
329 dev_dbg(dev, "**Update Boot Image from %d.%d.%d to %d.%d.%d\n",
330 edge_serial->boot_descriptor.MajorVersion,
331 edge_serial->boot_descriptor.MinorVersion,
332 le16_to_cpu(edge_serial->boot_descriptor.BuildNumber),
333 BootMajorVersion, BootMinorVersion, BootBuildNumber);
335 dev_dbg(dev, "Downloading new Boot Image\n");
337 for (rec = ihex_next_binrec(rec); rec;
338 rec = ihex_next_binrec(rec)) {
339 Bootaddr = be32_to_cpu(rec->addr);
340 response = rom_write(edge_serial->serial,
343 be16_to_cpu(rec->len),
346 dev_err(&edge_serial->serial->dev->dev,
347 "rom_write failed (%x, %x, %d)\n",
348 Bootaddr >> 16, Bootaddr & 0xFFFF,
349 be16_to_cpu(rec->len));
354 dev_dbg(dev, "Boot Image -- already up to date\n");
356 release_firmware(fw);
360 /************************************************************************
362 * Get string descriptor from device
364 ************************************************************************/
365 static int get_string_desc(struct usb_device *dev, int Id,
366 struct usb_string_descriptor **pRetDesc)
368 struct usb_string_descriptor StringDesc;
369 struct usb_string_descriptor *pStringDesc;
371 dev_dbg(&dev->dev, "%s - USB String ID = %d\n", __func__, Id);
373 if (!usb_get_descriptor(dev, USB_DT_STRING, Id, &StringDesc,
377 pStringDesc = kmalloc(StringDesc.bLength, GFP_KERNEL);
381 if (!usb_get_descriptor(dev, USB_DT_STRING, Id, pStringDesc,
382 StringDesc.bLength)) {
387 *pRetDesc = pStringDesc;
392 static void dump_product_info(struct edgeport_serial *edge_serial,
393 struct edgeport_product_info *product_info)
395 struct device *dev = &edge_serial->serial->dev->dev;
397 /* Dump Product Info structure */
398 dev_dbg(dev, "**Product Information:\n");
399 dev_dbg(dev, " ProductId %x\n", product_info->ProductId);
400 dev_dbg(dev, " NumPorts %d\n", product_info->NumPorts);
401 dev_dbg(dev, " ProdInfoVer %d\n", product_info->ProdInfoVer);
402 dev_dbg(dev, " IsServer %d\n", product_info->IsServer);
403 dev_dbg(dev, " IsRS232 %d\n", product_info->IsRS232);
404 dev_dbg(dev, " IsRS422 %d\n", product_info->IsRS422);
405 dev_dbg(dev, " IsRS485 %d\n", product_info->IsRS485);
406 dev_dbg(dev, " RomSize %d\n", product_info->RomSize);
407 dev_dbg(dev, " RamSize %d\n", product_info->RamSize);
408 dev_dbg(dev, " CpuRev %x\n", product_info->CpuRev);
409 dev_dbg(dev, " BoardRev %x\n", product_info->BoardRev);
410 dev_dbg(dev, " BootMajorVersion %d.%d.%d\n",
411 product_info->BootMajorVersion,
412 product_info->BootMinorVersion,
413 le16_to_cpu(product_info->BootBuildNumber));
414 dev_dbg(dev, " FirmwareMajorVersion %d.%d.%d\n",
415 product_info->FirmwareMajorVersion,
416 product_info->FirmwareMinorVersion,
417 le16_to_cpu(product_info->FirmwareBuildNumber));
418 dev_dbg(dev, " ManufactureDescDate %d/%d/%d\n",
419 product_info->ManufactureDescDate[0],
420 product_info->ManufactureDescDate[1],
421 product_info->ManufactureDescDate[2]+1900);
422 dev_dbg(dev, " iDownloadFile 0x%x\n",
423 product_info->iDownloadFile);
424 dev_dbg(dev, " EpicVer %d\n", product_info->EpicVer);
427 static void get_product_info(struct edgeport_serial *edge_serial)
429 struct edgeport_product_info *product_info = &edge_serial->product_info;
431 memset(product_info, 0, sizeof(struct edgeport_product_info));
433 product_info->ProductId = (__u16)(le16_to_cpu(edge_serial->serial->dev->descriptor.idProduct) & ~ION_DEVICE_ID_80251_NETCHIP);
434 product_info->NumPorts = edge_serial->manuf_descriptor.NumPorts;
435 product_info->ProdInfoVer = 0;
437 product_info->RomSize = edge_serial->manuf_descriptor.RomSize;
438 product_info->RamSize = edge_serial->manuf_descriptor.RamSize;
439 product_info->CpuRev = edge_serial->manuf_descriptor.CpuRev;
440 product_info->BoardRev = edge_serial->manuf_descriptor.BoardRev;
442 product_info->BootMajorVersion =
443 edge_serial->boot_descriptor.MajorVersion;
444 product_info->BootMinorVersion =
445 edge_serial->boot_descriptor.MinorVersion;
446 product_info->BootBuildNumber =
447 edge_serial->boot_descriptor.BuildNumber;
449 memcpy(product_info->ManufactureDescDate,
450 edge_serial->manuf_descriptor.DescDate,
451 sizeof(edge_serial->manuf_descriptor.DescDate));
453 /* check if this is 2nd generation hardware */
454 if (le16_to_cpu(edge_serial->serial->dev->descriptor.idProduct)
455 & ION_DEVICE_ID_80251_NETCHIP)
456 product_info->iDownloadFile = EDGE_DOWNLOAD_FILE_80251;
458 product_info->iDownloadFile = EDGE_DOWNLOAD_FILE_I930;
460 /* Determine Product type and set appropriate flags */
461 switch (DEVICE_ID_FROM_USB_PRODUCT_ID(product_info->ProductId)) {
462 case ION_DEVICE_ID_EDGEPORT_COMPATIBLE:
463 case ION_DEVICE_ID_EDGEPORT_4T:
464 case ION_DEVICE_ID_EDGEPORT_4:
465 case ION_DEVICE_ID_EDGEPORT_2:
466 case ION_DEVICE_ID_EDGEPORT_8_DUAL_CPU:
467 case ION_DEVICE_ID_EDGEPORT_8:
468 case ION_DEVICE_ID_EDGEPORT_421:
469 case ION_DEVICE_ID_EDGEPORT_21:
470 case ION_DEVICE_ID_EDGEPORT_2_DIN:
471 case ION_DEVICE_ID_EDGEPORT_4_DIN:
472 case ION_DEVICE_ID_EDGEPORT_16_DUAL_CPU:
473 product_info->IsRS232 = 1;
476 case ION_DEVICE_ID_EDGEPORT_2I: /* Edgeport/2 RS422/RS485 */
477 product_info->IsRS422 = 1;
478 product_info->IsRS485 = 1;
481 case ION_DEVICE_ID_EDGEPORT_8I: /* Edgeport/4 RS422 */
482 case ION_DEVICE_ID_EDGEPORT_4I: /* Edgeport/4 RS422 */
483 product_info->IsRS422 = 1;
487 dump_product_info(edge_serial, product_info);
490 static int get_epic_descriptor(struct edgeport_serial *ep)
493 struct usb_serial *serial = ep->serial;
494 struct edgeport_product_info *product_info = &ep->product_info;
495 struct edge_compatibility_descriptor *epic = &ep->epic_descriptor;
496 struct edge_compatibility_bits *bits;
497 struct device *dev = &serial->dev->dev;
500 result = usb_control_msg(serial->dev, usb_rcvctrlpipe(serial->dev, 0),
501 USB_REQUEST_ION_GET_EPIC_DESC,
503 &ep->epic_descriptor,
504 sizeof(struct edge_compatibility_descriptor),
509 memset(product_info, 0, sizeof(struct edgeport_product_info));
511 product_info->NumPorts = epic->NumPorts;
512 product_info->ProdInfoVer = 0;
513 product_info->FirmwareMajorVersion = epic->MajorVersion;
514 product_info->FirmwareMinorVersion = epic->MinorVersion;
515 product_info->FirmwareBuildNumber = epic->BuildNumber;
516 product_info->iDownloadFile = epic->iDownloadFile;
517 product_info->EpicVer = epic->EpicVer;
518 product_info->Epic = epic->Supports;
519 product_info->ProductId = ION_DEVICE_ID_EDGEPORT_COMPATIBLE;
520 dump_product_info(ep, product_info);
522 bits = &ep->epic_descriptor.Supports;
523 dev_dbg(dev, "**EPIC descriptor:\n");
524 dev_dbg(dev, " VendEnableSuspend: %s\n", bits->VendEnableSuspend ? "TRUE": "FALSE");
525 dev_dbg(dev, " IOSPOpen : %s\n", bits->IOSPOpen ? "TRUE": "FALSE");
526 dev_dbg(dev, " IOSPClose : %s\n", bits->IOSPClose ? "TRUE": "FALSE");
527 dev_dbg(dev, " IOSPChase : %s\n", bits->IOSPChase ? "TRUE": "FALSE");
528 dev_dbg(dev, " IOSPSetRxFlow : %s\n", bits->IOSPSetRxFlow ? "TRUE": "FALSE");
529 dev_dbg(dev, " IOSPSetTxFlow : %s\n", bits->IOSPSetTxFlow ? "TRUE": "FALSE");
530 dev_dbg(dev, " IOSPSetXChar : %s\n", bits->IOSPSetXChar ? "TRUE": "FALSE");
531 dev_dbg(dev, " IOSPRxCheck : %s\n", bits->IOSPRxCheck ? "TRUE": "FALSE");
532 dev_dbg(dev, " IOSPSetClrBreak : %s\n", bits->IOSPSetClrBreak ? "TRUE": "FALSE");
533 dev_dbg(dev, " IOSPWriteMCR : %s\n", bits->IOSPWriteMCR ? "TRUE": "FALSE");
534 dev_dbg(dev, " IOSPWriteLCR : %s\n", bits->IOSPWriteLCR ? "TRUE": "FALSE");
535 dev_dbg(dev, " IOSPSetBaudRate : %s\n", bits->IOSPSetBaudRate ? "TRUE": "FALSE");
536 dev_dbg(dev, " TrueEdgeport : %s\n", bits->TrueEdgeport ? "TRUE": "FALSE");
543 /************************************************************************/
544 /************************************************************************/
545 /* U S B C A L L B A C K F U N C T I O N S */
546 /* U S B C A L L B A C K F U N C T I O N S */
547 /************************************************************************/
548 /************************************************************************/
550 /*****************************************************************************
551 * edge_interrupt_callback
552 * this is the callback function for when we have received data on the
553 * interrupt endpoint.
554 *****************************************************************************/
555 static void edge_interrupt_callback(struct urb *urb)
557 struct edgeport_serial *edge_serial = urb->context;
559 struct edgeport_port *edge_port;
560 struct usb_serial_port *port;
561 unsigned char *data = urb->transfer_buffer;
562 int length = urb->actual_length;
568 int status = urb->status;
577 /* this urb is terminated, clean up */
578 dev_dbg(&urb->dev->dev, "%s - urb shutting down with status: %d\n", __func__, status);
581 dev_dbg(&urb->dev->dev, "%s - nonzero urb status received: %d\n", __func__, status);
585 dev = &edge_serial->serial->dev->dev;
587 /* process this interrupt-read even if there are no ports open */
589 usb_serial_debug_data(dev, __func__, length, data);
592 bytes_avail = data[0] | (data[1] << 8);
594 spin_lock(&edge_serial->es_lock);
595 edge_serial->rxBytesAvail += bytes_avail;
597 "%s - bytes_avail=%d, rxBytesAvail=%d, read_in_progress=%d\n",
598 __func__, bytes_avail,
599 edge_serial->rxBytesAvail,
600 edge_serial->read_in_progress);
602 if (edge_serial->rxBytesAvail > 0 &&
603 !edge_serial->read_in_progress) {
604 dev_dbg(dev, "%s - posting a read\n", __func__);
605 edge_serial->read_in_progress = true;
607 /* we have pending bytes on the
608 bulk in pipe, send a request */
609 result = usb_submit_urb(edge_serial->read_urb, GFP_ATOMIC);
612 "%s - usb_submit_urb(read bulk) failed with result = %d\n",
614 edge_serial->read_in_progress = false;
617 spin_unlock(&edge_serial->es_lock);
620 /* grab the txcredits for the ports if available */
623 while ((position < length) &&
624 (portNumber < edge_serial->serial->num_ports)) {
625 txCredits = data[position] | (data[position+1] << 8);
627 port = edge_serial->serial->port[portNumber];
628 edge_port = usb_get_serial_port_data(port);
629 if (edge_port->open) {
630 spin_lock(&edge_port->ep_lock);
631 edge_port->txCredits += txCredits;
632 spin_unlock(&edge_port->ep_lock);
633 dev_dbg(dev, "%s - txcredits for port%d = %d\n",
634 __func__, portNumber,
635 edge_port->txCredits);
637 /* tell the tty driver that something
639 tty_port_tty_wakeup(&edge_port->port->port);
640 /* Since we have more credit, check
641 if more data can be sent */
642 send_more_port_data(edge_serial,
652 result = usb_submit_urb(urb, GFP_ATOMIC);
654 dev_err(&urb->dev->dev,
655 "%s - Error %d submitting control urb\n",
660 /*****************************************************************************
661 * edge_bulk_in_callback
662 * this is the callback function for when we have received data on the
664 *****************************************************************************/
665 static void edge_bulk_in_callback(struct urb *urb)
667 struct edgeport_serial *edge_serial = urb->context;
669 unsigned char *data = urb->transfer_buffer;
671 __u16 raw_data_length;
672 int status = urb->status;
675 dev_dbg(&urb->dev->dev, "%s - nonzero read bulk status received: %d\n",
677 edge_serial->read_in_progress = false;
681 if (urb->actual_length == 0) {
682 dev_dbg(&urb->dev->dev, "%s - read bulk callback with no data\n", __func__);
683 edge_serial->read_in_progress = false;
687 dev = &edge_serial->serial->dev->dev;
688 raw_data_length = urb->actual_length;
690 usb_serial_debug_data(dev, __func__, raw_data_length, data);
692 spin_lock(&edge_serial->es_lock);
694 /* decrement our rxBytes available by the number that we just got */
695 edge_serial->rxBytesAvail -= raw_data_length;
697 dev_dbg(dev, "%s - Received = %d, rxBytesAvail %d\n", __func__,
698 raw_data_length, edge_serial->rxBytesAvail);
700 process_rcvd_data(edge_serial, data, urb->actual_length);
702 /* check to see if there's any more data for us to read */
703 if (edge_serial->rxBytesAvail > 0) {
704 dev_dbg(dev, "%s - posting a read\n", __func__);
705 retval = usb_submit_urb(edge_serial->read_urb, GFP_ATOMIC);
708 "%s - usb_submit_urb(read bulk) failed, retval = %d\n",
710 edge_serial->read_in_progress = false;
713 edge_serial->read_in_progress = false;
716 spin_unlock(&edge_serial->es_lock);
720 /*****************************************************************************
721 * edge_bulk_out_data_callback
722 * this is the callback function for when we have finished sending
723 * serial data on the bulk out endpoint.
724 *****************************************************************************/
725 static void edge_bulk_out_data_callback(struct urb *urb)
727 struct edgeport_port *edge_port = urb->context;
728 int status = urb->status;
731 dev_dbg(&urb->dev->dev,
732 "%s - nonzero write bulk status received: %d\n",
737 tty_port_tty_wakeup(&edge_port->port->port);
739 /* Release the Write URB */
740 edge_port->write_in_progress = false;
742 /* Check if more data needs to be sent */
743 send_more_port_data((struct edgeport_serial *)
744 (usb_get_serial_data(edge_port->port->serial)), edge_port);
748 /*****************************************************************************
750 * this is the callback function for when we have finished sending a
751 * command on the bulk out endpoint.
752 *****************************************************************************/
753 static void edge_bulk_out_cmd_callback(struct urb *urb)
755 struct edgeport_port *edge_port = urb->context;
756 int status = urb->status;
758 atomic_dec(&CmdUrbs);
759 dev_dbg(&urb->dev->dev, "%s - FREE URB %p (outstanding %d)\n",
760 __func__, urb, atomic_read(&CmdUrbs));
763 /* clean up the transfer buffer */
764 kfree(urb->transfer_buffer);
766 /* Free the command urb */
770 dev_dbg(&urb->dev->dev,
771 "%s - nonzero write bulk status received: %d\n",
776 /* tell the tty driver that something has changed */
778 tty_port_tty_wakeup(&edge_port->port->port);
780 /* we have completed the command */
781 edge_port->commandPending = false;
782 wake_up(&edge_port->wait_command);
786 /*****************************************************************************
787 * Driver tty interface functions
788 *****************************************************************************/
790 /*****************************************************************************
792 * this function is called by the tty driver when a port is opened
793 * If successful, we return 0
794 * Otherwise we return a negative error number.
795 *****************************************************************************/
796 static int edge_open(struct tty_struct *tty, struct usb_serial_port *port)
798 struct edgeport_port *edge_port = usb_get_serial_port_data(port);
799 struct device *dev = &port->dev;
800 struct usb_serial *serial;
801 struct edgeport_serial *edge_serial;
804 if (edge_port == NULL)
807 /* see if we've set up our endpoint info yet (can't set it up
808 in edge_startup as the structures were not set up at that time.) */
809 serial = port->serial;
810 edge_serial = usb_get_serial_data(serial);
811 if (edge_serial == NULL)
813 if (edge_serial->interrupt_in_buffer == NULL) {
814 struct usb_serial_port *port0 = serial->port[0];
816 /* not set up yet, so do it now */
817 edge_serial->interrupt_in_buffer =
818 port0->interrupt_in_buffer;
819 edge_serial->interrupt_in_endpoint =
820 port0->interrupt_in_endpointAddress;
821 edge_serial->interrupt_read_urb = port0->interrupt_in_urb;
822 edge_serial->bulk_in_buffer = port0->bulk_in_buffer;
823 edge_serial->bulk_in_endpoint =
824 port0->bulk_in_endpointAddress;
825 edge_serial->read_urb = port0->read_urb;
826 edge_serial->bulk_out_endpoint =
827 port0->bulk_out_endpointAddress;
829 /* set up our interrupt urb */
830 usb_fill_int_urb(edge_serial->interrupt_read_urb,
832 usb_rcvintpipe(serial->dev,
833 port0->interrupt_in_endpointAddress),
834 port0->interrupt_in_buffer,
835 edge_serial->interrupt_read_urb->transfer_buffer_length,
836 edge_interrupt_callback, edge_serial,
837 edge_serial->interrupt_read_urb->interval);
839 /* set up our bulk in urb */
840 usb_fill_bulk_urb(edge_serial->read_urb, serial->dev,
841 usb_rcvbulkpipe(serial->dev,
842 port0->bulk_in_endpointAddress),
843 port0->bulk_in_buffer,
844 edge_serial->read_urb->transfer_buffer_length,
845 edge_bulk_in_callback, edge_serial);
846 edge_serial->read_in_progress = false;
848 /* start interrupt read for this edgeport
849 * this interrupt will continue as long
850 * as the edgeport is connected */
851 response = usb_submit_urb(edge_serial->interrupt_read_urb,
854 dev_err(dev, "%s - Error %d submitting control urb\n",
859 /* initialize our wait queues */
860 init_waitqueue_head(&edge_port->wait_open);
861 init_waitqueue_head(&edge_port->wait_chase);
862 init_waitqueue_head(&edge_port->wait_command);
864 /* initialize our port settings */
865 edge_port->txCredits = 0; /* Can't send any data yet */
866 /* Must always set this bit to enable ints! */
867 edge_port->shadowMCR = MCR_MASTER_IE;
868 edge_port->chaseResponsePending = false;
870 /* send a open port command */
871 edge_port->openPending = true;
872 edge_port->open = false;
873 response = send_iosp_ext_cmd(edge_port, IOSP_CMD_OPEN_PORT, 0);
876 dev_err(dev, "%s - error sending open port command\n", __func__);
877 edge_port->openPending = false;
881 /* now wait for the port to be completely opened */
882 wait_event_timeout(edge_port->wait_open, !edge_port->openPending,
885 if (!edge_port->open) {
887 dev_dbg(dev, "%s - open timedout\n", __func__);
888 edge_port->openPending = false;
892 /* create the txfifo */
893 edge_port->txfifo.head = 0;
894 edge_port->txfifo.tail = 0;
895 edge_port->txfifo.count = 0;
896 edge_port->txfifo.size = edge_port->maxTxCredits;
897 edge_port->txfifo.fifo = kmalloc(edge_port->maxTxCredits, GFP_KERNEL);
899 if (!edge_port->txfifo.fifo) {
904 /* Allocate a URB for the write */
905 edge_port->write_urb = usb_alloc_urb(0, GFP_KERNEL);
906 edge_port->write_in_progress = false;
908 if (!edge_port->write_urb) {
913 dev_dbg(dev, "%s - Initialize TX fifo to %d bytes\n",
914 __func__, edge_port->maxTxCredits);
920 /************************************************************************
922 * block_until_chase_response
924 * This function will block the close until one of the following:
925 * 1. Response to our Chase comes from Edgeport
926 * 2. A timeout of 10 seconds without activity has expired
927 * (1K of Edgeport data @ 2400 baud ==> 4 sec to empty)
929 ************************************************************************/
930 static void block_until_chase_response(struct edgeport_port *edge_port)
932 struct device *dev = &edge_port->port->dev;
939 /* Save Last credits */
940 lastCredits = edge_port->txCredits;
942 /* Did we get our Chase response */
943 if (!edge_port->chaseResponsePending) {
944 dev_dbg(dev, "%s - Got Chase Response\n", __func__);
946 /* did we get all of our credit back? */
947 if (edge_port->txCredits == edge_port->maxTxCredits) {
948 dev_dbg(dev, "%s - Got all credits\n", __func__);
953 /* Block the thread for a while */
954 prepare_to_wait(&edge_port->wait_chase, &wait,
955 TASK_UNINTERRUPTIBLE);
956 schedule_timeout(timeout);
957 finish_wait(&edge_port->wait_chase, &wait);
959 if (lastCredits == edge_port->txCredits) {
960 /* No activity.. count down. */
963 edge_port->chaseResponsePending = false;
964 dev_dbg(dev, "%s - Chase TIMEOUT\n", __func__);
968 /* Reset timeout value back to 10 seconds */
969 dev_dbg(dev, "%s - Last %d, Current %d\n", __func__,
970 lastCredits, edge_port->txCredits);
977 /************************************************************************
979 * block_until_tx_empty
981 * This function will block the close until one of the following:
983 * 2. The edgeport has stopped
984 * 3. A timeout of 3 seconds without activity has expired
986 ************************************************************************/
987 static void block_until_tx_empty(struct edgeport_port *edge_port)
989 struct device *dev = &edge_port->port->dev;
991 struct TxFifo *fifo = &edge_port->txfifo;
997 /* Save Last count */
998 lastCount = fifo->count;
1000 /* Is the Edgeport Buffer empty? */
1001 if (lastCount == 0) {
1002 dev_dbg(dev, "%s - TX Buffer Empty\n", __func__);
1006 /* Block the thread for a while */
1007 prepare_to_wait(&edge_port->wait_chase, &wait,
1008 TASK_UNINTERRUPTIBLE);
1009 schedule_timeout(timeout);
1010 finish_wait(&edge_port->wait_chase, &wait);
1012 dev_dbg(dev, "%s wait\n", __func__);
1014 if (lastCount == fifo->count) {
1015 /* No activity.. count down. */
1018 dev_dbg(dev, "%s - TIMEOUT\n", __func__);
1022 /* Reset timeout value back to seconds */
1029 /*****************************************************************************
1031 * this function is called by the tty driver when a port is closed
1032 *****************************************************************************/
1033 static void edge_close(struct usb_serial_port *port)
1035 struct edgeport_serial *edge_serial;
1036 struct edgeport_port *edge_port;
1039 edge_serial = usb_get_serial_data(port->serial);
1040 edge_port = usb_get_serial_port_data(port);
1041 if (edge_serial == NULL || edge_port == NULL)
1044 /* block until tx is empty */
1045 block_until_tx_empty(edge_port);
1047 edge_port->closePending = true;
1049 if ((!edge_serial->is_epic) ||
1050 ((edge_serial->is_epic) &&
1051 (edge_serial->epic_descriptor.Supports.IOSPChase))) {
1052 /* flush and chase */
1053 edge_port->chaseResponsePending = true;
1055 dev_dbg(&port->dev, "%s - Sending IOSP_CMD_CHASE_PORT\n", __func__);
1056 status = send_iosp_ext_cmd(edge_port, IOSP_CMD_CHASE_PORT, 0);
1058 /* block until chase finished */
1059 block_until_chase_response(edge_port);
1061 edge_port->chaseResponsePending = false;
1064 if ((!edge_serial->is_epic) ||
1065 ((edge_serial->is_epic) &&
1066 (edge_serial->epic_descriptor.Supports.IOSPClose))) {
1067 /* close the port */
1068 dev_dbg(&port->dev, "%s - Sending IOSP_CMD_CLOSE_PORT\n", __func__);
1069 send_iosp_ext_cmd(edge_port, IOSP_CMD_CLOSE_PORT, 0);
1072 /* port->close = true; */
1073 edge_port->closePending = false;
1074 edge_port->open = false;
1075 edge_port->openPending = false;
1077 usb_kill_urb(edge_port->write_urb);
1079 if (edge_port->write_urb) {
1080 /* if this urb had a transfer buffer already
1081 (old transfer) free it */
1082 kfree(edge_port->write_urb->transfer_buffer);
1083 usb_free_urb(edge_port->write_urb);
1084 edge_port->write_urb = NULL;
1086 kfree(edge_port->txfifo.fifo);
1087 edge_port->txfifo.fifo = NULL;
1090 /*****************************************************************************
1092 * this function is called by the tty driver when data should be written
1094 * If successful, we return the number of bytes written, otherwise we
1095 * return a negative error number.
1096 *****************************************************************************/
1097 static int edge_write(struct tty_struct *tty, struct usb_serial_port *port,
1098 const unsigned char *data, int count)
1100 struct edgeport_port *edge_port = usb_get_serial_port_data(port);
1101 struct TxFifo *fifo;
1106 unsigned long flags;
1108 if (edge_port == NULL)
1111 /* get a pointer to the Tx fifo */
1112 fifo = &edge_port->txfifo;
1114 spin_lock_irqsave(&edge_port->ep_lock, flags);
1116 /* calculate number of bytes to put in fifo */
1117 copySize = min((unsigned int)count,
1118 (edge_port->txCredits - fifo->count));
1120 dev_dbg(&port->dev, "%s of %d byte(s) Fifo room %d -- will copy %d bytes\n",
1121 __func__, count, edge_port->txCredits - fifo->count, copySize);
1123 /* catch writes of 0 bytes which the tty driver likes to give us,
1124 and when txCredits is empty */
1125 if (copySize == 0) {
1126 dev_dbg(&port->dev, "%s - copySize = Zero\n", __func__);
1131 * since we can never overflow the buffer we do not have to check for a
1134 * the copy is done is two parts -- first fill to the end of the buffer
1135 * then copy the reset from the start of the buffer
1137 bytesleft = fifo->size - fifo->head;
1138 firsthalf = min(bytesleft, copySize);
1139 dev_dbg(&port->dev, "%s - copy %d bytes of %d into fifo \n", __func__,
1140 firsthalf, bytesleft);
1142 /* now copy our data */
1143 memcpy(&fifo->fifo[fifo->head], data, firsthalf);
1144 usb_serial_debug_data(&port->dev, __func__, firsthalf, &fifo->fifo[fifo->head]);
1146 /* update the index and size */
1147 fifo->head += firsthalf;
1148 fifo->count += firsthalf;
1150 /* wrap the index */
1151 if (fifo->head == fifo->size)
1154 secondhalf = copySize-firsthalf;
1157 dev_dbg(&port->dev, "%s - copy rest of data %d\n", __func__, secondhalf);
1158 memcpy(&fifo->fifo[fifo->head], &data[firsthalf], secondhalf);
1159 usb_serial_debug_data(&port->dev, __func__, secondhalf, &fifo->fifo[fifo->head]);
1160 /* update the index and size */
1161 fifo->count += secondhalf;
1162 fifo->head += secondhalf;
1163 /* No need to check for wrap since we can not get to end of
1164 * the fifo in this part
1169 spin_unlock_irqrestore(&edge_port->ep_lock, flags);
1171 send_more_port_data((struct edgeport_serial *)
1172 usb_get_serial_data(port->serial), edge_port);
1174 dev_dbg(&port->dev, "%s wrote %d byte(s) TxCredits %d, Fifo %d\n",
1175 __func__, copySize, edge_port->txCredits, fifo->count);
1181 /************************************************************************
1183 * send_more_port_data()
1185 * This routine attempts to write additional UART transmit data
1186 * to a port over the USB bulk pipe. It is called (1) when new
1187 * data has been written to a port's TxBuffer from higher layers
1188 * (2) when the peripheral sends us additional TxCredits indicating
1189 * that it can accept more Tx data for a given port; and (3) when
1190 * a bulk write completes successfully and we want to see if we
1191 * can transmit more.
1193 ************************************************************************/
1194 static void send_more_port_data(struct edgeport_serial *edge_serial,
1195 struct edgeport_port *edge_port)
1197 struct TxFifo *fifo = &edge_port->txfifo;
1198 struct device *dev = &edge_port->port->dev;
1200 unsigned char *buffer;
1206 unsigned long flags;
1208 spin_lock_irqsave(&edge_port->ep_lock, flags);
1210 if (edge_port->write_in_progress ||
1212 (fifo->count == 0)) {
1213 dev_dbg(dev, "%s EXIT - fifo %d, PendingWrite = %d\n",
1214 __func__, fifo->count, edge_port->write_in_progress);
1218 /* since the amount of data in the fifo will always fit into the
1219 * edgeport buffer we do not need to check the write length
1221 * Do we have enough credits for this port to make it worthwhile
1222 * to bother queueing a write. If it's too small, say a few bytes,
1223 * it's better to wait for more credits so we can do a larger write.
1225 if (edge_port->txCredits < EDGE_FW_GET_TX_CREDITS_SEND_THRESHOLD(edge_port->maxTxCredits, EDGE_FW_BULK_MAX_PACKET_SIZE)) {
1226 dev_dbg(dev, "%s Not enough credit - fifo %d TxCredit %d\n",
1227 __func__, fifo->count, edge_port->txCredits);
1231 /* lock this write */
1232 edge_port->write_in_progress = true;
1234 /* get a pointer to the write_urb */
1235 urb = edge_port->write_urb;
1237 /* make sure transfer buffer is freed */
1238 kfree(urb->transfer_buffer);
1239 urb->transfer_buffer = NULL;
1241 /* build the data header for the buffer and port that we are about
1243 count = fifo->count;
1244 buffer = kmalloc(count+2, GFP_ATOMIC);
1246 edge_port->write_in_progress = false;
1249 buffer[0] = IOSP_BUILD_DATA_HDR1(edge_port->port->port_number, count);
1250 buffer[1] = IOSP_BUILD_DATA_HDR2(edge_port->port->port_number, count);
1252 /* now copy our data */
1253 bytesleft = fifo->size - fifo->tail;
1254 firsthalf = min(bytesleft, count);
1255 memcpy(&buffer[2], &fifo->fifo[fifo->tail], firsthalf);
1256 fifo->tail += firsthalf;
1257 fifo->count -= firsthalf;
1258 if (fifo->tail == fifo->size)
1261 secondhalf = count-firsthalf;
1263 memcpy(&buffer[2+firsthalf], &fifo->fifo[fifo->tail],
1265 fifo->tail += secondhalf;
1266 fifo->count -= secondhalf;
1270 usb_serial_debug_data(&edge_port->port->dev, __func__, count, &buffer[2]);
1272 /* fill up the urb with all of our data and submit it */
1273 usb_fill_bulk_urb(urb, edge_serial->serial->dev,
1274 usb_sndbulkpipe(edge_serial->serial->dev,
1275 edge_serial->bulk_out_endpoint),
1277 edge_bulk_out_data_callback, edge_port);
1279 /* decrement the number of credits we have by the number we just sent */
1280 edge_port->txCredits -= count;
1281 edge_port->port->icount.tx += count;
1283 status = usb_submit_urb(urb, GFP_ATOMIC);
1285 /* something went wrong */
1286 dev_err_console(edge_port->port,
1287 "%s - usb_submit_urb(write bulk) failed, status = %d, data lost\n",
1289 edge_port->write_in_progress = false;
1291 /* revert the credits as something bad happened. */
1292 edge_port->txCredits += count;
1293 edge_port->port->icount.tx -= count;
1295 dev_dbg(dev, "%s wrote %d byte(s) TxCredit %d, Fifo %d\n",
1296 __func__, count, edge_port->txCredits, fifo->count);
1299 spin_unlock_irqrestore(&edge_port->ep_lock, flags);
1303 /*****************************************************************************
1305 * this function is called by the tty driver when it wants to know how
1306 * many bytes of data we can accept for a specific port. If successful,
1307 * we return the amount of room that we have for this port (the txCredits)
1308 * otherwise we return a negative error number.
1309 *****************************************************************************/
1310 static int edge_write_room(struct tty_struct *tty)
1312 struct usb_serial_port *port = tty->driver_data;
1313 struct edgeport_port *edge_port = usb_get_serial_port_data(port);
1315 unsigned long flags;
1317 if (edge_port == NULL)
1319 if (edge_port->closePending)
1322 if (!edge_port->open) {
1323 dev_dbg(&port->dev, "%s - port not opened\n", __func__);
1327 /* total of both buffers is still txCredit */
1328 spin_lock_irqsave(&edge_port->ep_lock, flags);
1329 room = edge_port->txCredits - edge_port->txfifo.count;
1330 spin_unlock_irqrestore(&edge_port->ep_lock, flags);
1332 dev_dbg(&port->dev, "%s - returns %d\n", __func__, room);
1337 /*****************************************************************************
1338 * edge_chars_in_buffer
1339 * this function is called by the tty driver when it wants to know how
1340 * many bytes of data we currently have outstanding in the port (data that
1341 * has been written, but hasn't made it out the port yet)
1342 * If successful, we return the number of bytes left to be written in the
1344 * Otherwise we return a negative error number.
1345 *****************************************************************************/
1346 static int edge_chars_in_buffer(struct tty_struct *tty)
1348 struct usb_serial_port *port = tty->driver_data;
1349 struct edgeport_port *edge_port = usb_get_serial_port_data(port);
1351 unsigned long flags;
1353 if (edge_port == NULL)
1355 if (edge_port->closePending)
1358 if (!edge_port->open) {
1359 dev_dbg(&port->dev, "%s - port not opened\n", __func__);
1363 spin_lock_irqsave(&edge_port->ep_lock, flags);
1364 num_chars = edge_port->maxTxCredits - edge_port->txCredits +
1365 edge_port->txfifo.count;
1366 spin_unlock_irqrestore(&edge_port->ep_lock, flags);
1368 dev_dbg(&port->dev, "%s - returns %d\n", __func__, num_chars);
1375 /*****************************************************************************
1377 * this function is called by the tty driver when it wants to stop the data
1378 * being read from the port.
1379 *****************************************************************************/
1380 static void edge_throttle(struct tty_struct *tty)
1382 struct usb_serial_port *port = tty->driver_data;
1383 struct edgeport_port *edge_port = usb_get_serial_port_data(port);
1386 if (edge_port == NULL)
1389 if (!edge_port->open) {
1390 dev_dbg(&port->dev, "%s - port not opened\n", __func__);
1394 /* if we are implementing XON/XOFF, send the stop character */
1396 unsigned char stop_char = STOP_CHAR(tty);
1397 status = edge_write(tty, port, &stop_char, 1);
1402 /* if we are implementing RTS/CTS, toggle that line */
1403 if (tty->termios.c_cflag & CRTSCTS) {
1404 edge_port->shadowMCR &= ~MCR_RTS;
1405 status = send_cmd_write_uart_register(edge_port, MCR,
1406 edge_port->shadowMCR);
1413 /*****************************************************************************
1415 * this function is called by the tty driver when it wants to resume the
1416 * data being read from the port (called after SerialThrottle is called)
1417 *****************************************************************************/
1418 static void edge_unthrottle(struct tty_struct *tty)
1420 struct usb_serial_port *port = tty->driver_data;
1421 struct edgeport_port *edge_port = usb_get_serial_port_data(port);
1424 if (edge_port == NULL)
1427 if (!edge_port->open) {
1428 dev_dbg(&port->dev, "%s - port not opened\n", __func__);
1432 /* if we are implementing XON/XOFF, send the start character */
1434 unsigned char start_char = START_CHAR(tty);
1435 status = edge_write(tty, port, &start_char, 1);
1439 /* if we are implementing RTS/CTS, toggle that line */
1440 if (tty->termios.c_cflag & CRTSCTS) {
1441 edge_port->shadowMCR |= MCR_RTS;
1442 send_cmd_write_uart_register(edge_port, MCR,
1443 edge_port->shadowMCR);
1448 /*****************************************************************************
1450 * this function is called by the tty driver when it wants to change
1451 * the termios structure
1452 *****************************************************************************/
1453 static void edge_set_termios(struct tty_struct *tty,
1454 struct usb_serial_port *port, struct ktermios *old_termios)
1456 struct edgeport_port *edge_port = usb_get_serial_port_data(port);
1459 cflag = tty->termios.c_cflag;
1460 dev_dbg(&port->dev, "%s - clfag %08x iflag %08x\n", __func__, tty->termios.c_cflag, tty->termios.c_iflag);
1461 dev_dbg(&port->dev, "%s - old clfag %08x old iflag %08x\n", __func__, old_termios->c_cflag, old_termios->c_iflag);
1463 if (edge_port == NULL)
1466 if (!edge_port->open) {
1467 dev_dbg(&port->dev, "%s - port not opened\n", __func__);
1471 /* change the port settings to the new ones specified */
1472 change_port_settings(tty, edge_port, old_termios);
1476 /*****************************************************************************
1477 * get_lsr_info - get line status register info
1479 * Purpose: Let user call ioctl() to get info when the UART physically
1480 * is emptied. On bus types like RS485, the transmitter must
1481 * release the bus after transmitting. This must be done when
1482 * the transmit shift register is empty, not be done when the
1483 * transmit holding register is empty. This functionality
1484 * allows an RS485 driver to be written in user space.
1485 *****************************************************************************/
1486 static int get_lsr_info(struct edgeport_port *edge_port,
1487 unsigned int __user *value)
1489 unsigned int result = 0;
1490 unsigned long flags;
1492 spin_lock_irqsave(&edge_port->ep_lock, flags);
1493 if (edge_port->maxTxCredits == edge_port->txCredits &&
1494 edge_port->txfifo.count == 0) {
1495 dev_dbg(&edge_port->port->dev, "%s -- Empty\n", __func__);
1496 result = TIOCSER_TEMT;
1498 spin_unlock_irqrestore(&edge_port->ep_lock, flags);
1500 if (copy_to_user(value, &result, sizeof(int)))
1505 static int edge_tiocmset(struct tty_struct *tty,
1506 unsigned int set, unsigned int clear)
1508 struct usb_serial_port *port = tty->driver_data;
1509 struct edgeport_port *edge_port = usb_get_serial_port_data(port);
1512 mcr = edge_port->shadowMCR;
1513 if (set & TIOCM_RTS)
1515 if (set & TIOCM_DTR)
1517 if (set & TIOCM_LOOP)
1518 mcr |= MCR_LOOPBACK;
1520 if (clear & TIOCM_RTS)
1522 if (clear & TIOCM_DTR)
1524 if (clear & TIOCM_LOOP)
1525 mcr &= ~MCR_LOOPBACK;
1527 edge_port->shadowMCR = mcr;
1529 send_cmd_write_uart_register(edge_port, MCR, edge_port->shadowMCR);
1534 static int edge_tiocmget(struct tty_struct *tty)
1536 struct usb_serial_port *port = tty->driver_data;
1537 struct edgeport_port *edge_port = usb_get_serial_port_data(port);
1538 unsigned int result = 0;
1542 msr = edge_port->shadowMSR;
1543 mcr = edge_port->shadowMCR;
1544 result = ((mcr & MCR_DTR) ? TIOCM_DTR: 0) /* 0x002 */
1545 | ((mcr & MCR_RTS) ? TIOCM_RTS: 0) /* 0x004 */
1546 | ((msr & EDGEPORT_MSR_CTS) ? TIOCM_CTS: 0) /* 0x020 */
1547 | ((msr & EDGEPORT_MSR_CD) ? TIOCM_CAR: 0) /* 0x040 */
1548 | ((msr & EDGEPORT_MSR_RI) ? TIOCM_RI: 0) /* 0x080 */
1549 | ((msr & EDGEPORT_MSR_DSR) ? TIOCM_DSR: 0); /* 0x100 */
1554 static int get_serial_info(struct edgeport_port *edge_port,
1555 struct serial_struct __user *retinfo)
1557 struct serial_struct tmp;
1562 memset(&tmp, 0, sizeof(tmp));
1564 tmp.type = PORT_16550A;
1565 tmp.line = edge_port->port->minor;
1566 tmp.port = edge_port->port->port_number;
1568 tmp.flags = ASYNC_SKIP_TEST | ASYNC_AUTO_IRQ;
1569 tmp.xmit_fifo_size = edge_port->maxTxCredits;
1570 tmp.baud_base = 9600;
1571 tmp.close_delay = 5*HZ;
1572 tmp.closing_wait = 30*HZ;
1574 if (copy_to_user(retinfo, &tmp, sizeof(*retinfo)))
1580 /*****************************************************************************
1582 * this function handles any ioctl calls to the driver
1583 *****************************************************************************/
1584 static int edge_ioctl(struct tty_struct *tty,
1585 unsigned int cmd, unsigned long arg)
1587 struct usb_serial_port *port = tty->driver_data;
1589 struct edgeport_port *edge_port = usb_get_serial_port_data(port);
1593 dev_dbg(&port->dev, "%s TIOCSERGETLSR\n", __func__);
1594 return get_lsr_info(edge_port, (unsigned int __user *) arg);
1597 dev_dbg(&port->dev, "%s TIOCGSERIAL\n", __func__);
1598 return get_serial_info(edge_port, (struct serial_struct __user *) arg);
1600 return -ENOIOCTLCMD;
1604 /*****************************************************************************
1606 * this function sends a break to the port
1607 *****************************************************************************/
1608 static void edge_break(struct tty_struct *tty, int break_state)
1610 struct usb_serial_port *port = tty->driver_data;
1611 struct edgeport_port *edge_port = usb_get_serial_port_data(port);
1612 struct edgeport_serial *edge_serial = usb_get_serial_data(port->serial);
1615 if ((!edge_serial->is_epic) ||
1616 ((edge_serial->is_epic) &&
1617 (edge_serial->epic_descriptor.Supports.IOSPChase))) {
1618 /* flush and chase */
1619 edge_port->chaseResponsePending = true;
1621 dev_dbg(&port->dev, "%s - Sending IOSP_CMD_CHASE_PORT\n", __func__);
1622 status = send_iosp_ext_cmd(edge_port, IOSP_CMD_CHASE_PORT, 0);
1624 /* block until chase finished */
1625 block_until_chase_response(edge_port);
1627 edge_port->chaseResponsePending = false;
1631 if ((!edge_serial->is_epic) ||
1632 ((edge_serial->is_epic) &&
1633 (edge_serial->epic_descriptor.Supports.IOSPSetClrBreak))) {
1634 if (break_state == -1) {
1635 dev_dbg(&port->dev, "%s - Sending IOSP_CMD_SET_BREAK\n", __func__);
1636 status = send_iosp_ext_cmd(edge_port,
1637 IOSP_CMD_SET_BREAK, 0);
1639 dev_dbg(&port->dev, "%s - Sending IOSP_CMD_CLEAR_BREAK\n", __func__);
1640 status = send_iosp_ext_cmd(edge_port,
1641 IOSP_CMD_CLEAR_BREAK, 0);
1644 dev_dbg(&port->dev, "%s - error sending break set/clear command.\n",
1650 /*****************************************************************************
1652 * this function handles the data received on the bulk in pipe.
1653 *****************************************************************************/
1654 static void process_rcvd_data(struct edgeport_serial *edge_serial,
1655 unsigned char *buffer, __u16 bufferLength)
1657 struct device *dev = &edge_serial->serial->dev->dev;
1658 struct usb_serial_port *port;
1659 struct edgeport_port *edge_port;
1660 __u16 lastBufferLength;
1663 lastBufferLength = bufferLength + 1;
1665 while (bufferLength > 0) {
1666 /* failsafe incase we get a message that we don't understand */
1667 if (lastBufferLength == bufferLength) {
1668 dev_dbg(dev, "%s - stuck in loop, exiting it.\n", __func__);
1671 lastBufferLength = bufferLength;
1673 switch (edge_serial->rxState) {
1675 edge_serial->rxHeader1 = *buffer;
1679 if (bufferLength == 0) {
1680 edge_serial->rxState = EXPECT_HDR2;
1683 /* otherwise, drop on through */
1685 edge_serial->rxHeader2 = *buffer;
1689 dev_dbg(dev, "%s - Hdr1=%02X Hdr2=%02X\n", __func__,
1690 edge_serial->rxHeader1, edge_serial->rxHeader2);
1691 /* Process depending on whether this header is
1694 if (IS_CMD_STAT_HDR(edge_serial->rxHeader1)) {
1695 /* Decode this status header and go to
1696 * EXPECT_HDR1 (if we can process the status
1697 * with only 2 bytes), or go to EXPECT_HDR3 to
1698 * get the third byte. */
1699 edge_serial->rxPort =
1700 IOSP_GET_HDR_PORT(edge_serial->rxHeader1);
1701 edge_serial->rxStatusCode =
1702 IOSP_GET_STATUS_CODE(
1703 edge_serial->rxHeader1);
1705 if (!IOSP_STATUS_IS_2BYTE(
1706 edge_serial->rxStatusCode)) {
1707 /* This status needs additional bytes.
1708 * Save what we have and then wait for
1711 edge_serial->rxStatusParam
1712 = edge_serial->rxHeader2;
1713 edge_serial->rxState = EXPECT_HDR3;
1716 /* We have all the header bytes, process the
1718 process_rcvd_status(edge_serial,
1719 edge_serial->rxHeader2, 0);
1720 edge_serial->rxState = EXPECT_HDR1;
1723 edge_serial->rxPort =
1724 IOSP_GET_HDR_PORT(edge_serial->rxHeader1);
1725 edge_serial->rxBytesRemaining =
1726 IOSP_GET_HDR_DATA_LEN(
1727 edge_serial->rxHeader1,
1728 edge_serial->rxHeader2);
1729 dev_dbg(dev, "%s - Data for Port %u Len %u\n",
1731 edge_serial->rxPort,
1732 edge_serial->rxBytesRemaining);
1734 /* ASSERT(DevExt->RxPort < DevExt->NumPorts);
1735 * ASSERT(DevExt->RxBytesRemaining <
1736 * IOSP_MAX_DATA_LENGTH);
1739 if (bufferLength == 0) {
1740 edge_serial->rxState = EXPECT_DATA;
1743 /* Else, drop through */
1745 case EXPECT_DATA: /* Expect data */
1746 if (bufferLength < edge_serial->rxBytesRemaining) {
1747 rxLen = bufferLength;
1748 /* Expect data to start next buffer */
1749 edge_serial->rxState = EXPECT_DATA;
1751 /* BufLen >= RxBytesRemaining */
1752 rxLen = edge_serial->rxBytesRemaining;
1753 /* Start another header next time */
1754 edge_serial->rxState = EXPECT_HDR1;
1757 bufferLength -= rxLen;
1758 edge_serial->rxBytesRemaining -= rxLen;
1760 /* spit this data back into the tty driver if this
1763 port = edge_serial->serial->port[
1764 edge_serial->rxPort];
1765 edge_port = usb_get_serial_port_data(port);
1766 if (edge_port->open) {
1767 dev_dbg(dev, "%s - Sending %d bytes to TTY for port %d\n",
1769 edge_serial->rxPort);
1770 edge_tty_recv(edge_port->port, buffer,
1772 edge_port->port->icount.rx += rxLen;
1778 case EXPECT_HDR3: /* Expect 3rd byte of status header */
1779 edge_serial->rxHeader3 = *buffer;
1783 /* We have all the header bytes, process the
1785 process_rcvd_status(edge_serial,
1786 edge_serial->rxStatusParam,
1787 edge_serial->rxHeader3);
1788 edge_serial->rxState = EXPECT_HDR1;
1795 /*****************************************************************************
1796 * process_rcvd_status
1797 * this function handles the any status messages received on the
1799 *****************************************************************************/
1800 static void process_rcvd_status(struct edgeport_serial *edge_serial,
1801 __u8 byte2, __u8 byte3)
1803 struct usb_serial_port *port;
1804 struct edgeport_port *edge_port;
1805 struct tty_struct *tty;
1807 __u8 code = edge_serial->rxStatusCode;
1809 /* switch the port pointer to the one being currently talked about */
1810 port = edge_serial->serial->port[edge_serial->rxPort];
1811 edge_port = usb_get_serial_port_data(port);
1812 if (edge_port == NULL) {
1813 dev_err(&edge_serial->serial->dev->dev,
1814 "%s - edge_port == NULL for port %d\n",
1815 __func__, edge_serial->rxPort);
1820 if (code == IOSP_EXT_STATUS) {
1822 case IOSP_EXT_STATUS_CHASE_RSP:
1823 /* we want to do EXT status regardless of port
1825 dev_dbg(dev, "%s - Port %u EXT CHASE_RSP Data = %02x\n",
1826 __func__, edge_serial->rxPort, byte3);
1827 /* Currently, the only EXT_STATUS is Chase, so process
1828 * here instead of one more call to one more subroutine
1829 * If/when more EXT_STATUS, there'll be more work to do
1830 * Also, we currently clear flag and close the port
1831 * regardless of content of above's Byte3.
1832 * We could choose to do something else when Byte3 says
1833 * Timeout on Chase from Edgeport, like wait longer in
1834 * block_until_chase_response, but for now we don't.
1836 edge_port->chaseResponsePending = false;
1837 wake_up(&edge_port->wait_chase);
1840 case IOSP_EXT_STATUS_RX_CHECK_RSP:
1841 dev_dbg(dev, "%s ========== Port %u CHECK_RSP Sequence = %02x =============\n",
1842 __func__, edge_serial->rxPort, byte3);
1843 /* Port->RxCheckRsp = true; */
1848 if (code == IOSP_STATUS_OPEN_RSP) {
1849 edge_port->txCredits = GET_TX_BUFFER_SIZE(byte3);
1850 edge_port->maxTxCredits = edge_port->txCredits;
1851 dev_dbg(dev, "%s - Port %u Open Response Initial MSR = %02x TxBufferSize = %d\n",
1852 __func__, edge_serial->rxPort, byte2, edge_port->txCredits);
1853 handle_new_msr(edge_port, byte2);
1855 /* send the current line settings to the port so we are
1856 in sync with any further termios calls */
1857 tty = tty_port_tty_get(&edge_port->port->port);
1859 change_port_settings(tty,
1860 edge_port, &tty->termios);
1864 /* we have completed the open */
1865 edge_port->openPending = false;
1866 edge_port->open = true;
1867 wake_up(&edge_port->wait_open);
1871 /* If port is closed, silently discard all rcvd status. We can
1872 * have cases where buffered status is received AFTER the close
1873 * port command is sent to the Edgeport.
1875 if (!edge_port->open || edge_port->closePending)
1879 /* Not currently sent by Edgeport */
1880 case IOSP_STATUS_LSR:
1881 dev_dbg(dev, "%s - Port %u LSR Status = %02x\n",
1882 __func__, edge_serial->rxPort, byte2);
1883 handle_new_lsr(edge_port, false, byte2, 0);
1886 case IOSP_STATUS_LSR_DATA:
1887 dev_dbg(dev, "%s - Port %u LSR Status = %02x, Data = %02x\n",
1888 __func__, edge_serial->rxPort, byte2, byte3);
1889 /* byte2 is LSR Register */
1890 /* byte3 is broken data byte */
1891 handle_new_lsr(edge_port, true, byte2, byte3);
1894 * case IOSP_EXT_4_STATUS:
1895 * dev_dbg(dev, "%s - Port %u LSR Status = %02x Data = %02x\n",
1896 * __func__, edge_serial->rxPort, byte2, byte3);
1899 case IOSP_STATUS_MSR:
1900 dev_dbg(dev, "%s - Port %u MSR Status = %02x\n",
1901 __func__, edge_serial->rxPort, byte2);
1903 * Process this new modem status and generate appropriate
1904 * events, etc, based on the new status. This routine
1905 * also saves the MSR in Port->ShadowMsr.
1907 handle_new_msr(edge_port, byte2);
1911 dev_dbg(dev, "%s - Unrecognized IOSP status code %u\n", __func__, code);
1917 /*****************************************************************************
1919 * this function passes data on to the tty flip buffer
1920 *****************************************************************************/
1921 static void edge_tty_recv(struct usb_serial_port *port, unsigned char *data,
1926 cnt = tty_insert_flip_string(&port->port, data, length);
1928 dev_err(&port->dev, "%s - dropping data, %d bytes lost\n",
1929 __func__, length - cnt);
1934 tty_flip_buffer_push(&port->port);
1938 /*****************************************************************************
1940 * this function handles any change to the msr register for a port.
1941 *****************************************************************************/
1942 static void handle_new_msr(struct edgeport_port *edge_port, __u8 newMsr)
1944 struct async_icount *icount;
1946 if (newMsr & (EDGEPORT_MSR_DELTA_CTS | EDGEPORT_MSR_DELTA_DSR |
1947 EDGEPORT_MSR_DELTA_RI | EDGEPORT_MSR_DELTA_CD)) {
1948 icount = &edge_port->port->icount;
1950 /* update input line counters */
1951 if (newMsr & EDGEPORT_MSR_DELTA_CTS)
1953 if (newMsr & EDGEPORT_MSR_DELTA_DSR)
1955 if (newMsr & EDGEPORT_MSR_DELTA_CD)
1957 if (newMsr & EDGEPORT_MSR_DELTA_RI)
1959 wake_up_interruptible(&edge_port->port->port.delta_msr_wait);
1962 /* Save the new modem status */
1963 edge_port->shadowMSR = newMsr & 0xf0;
1967 /*****************************************************************************
1969 * this function handles any change to the lsr register for a port.
1970 *****************************************************************************/
1971 static void handle_new_lsr(struct edgeport_port *edge_port, __u8 lsrData,
1972 __u8 lsr, __u8 data)
1974 __u8 newLsr = (__u8) (lsr & (__u8)
1975 (LSR_OVER_ERR | LSR_PAR_ERR | LSR_FRM_ERR | LSR_BREAK));
1976 struct async_icount *icount;
1978 edge_port->shadowLSR = lsr;
1980 if (newLsr & LSR_BREAK) {
1982 * Parity and Framing errors only count if they
1983 * occur exclusive of a break being
1986 newLsr &= (__u8)(LSR_OVER_ERR | LSR_BREAK);
1989 /* Place LSR data byte into Rx buffer */
1991 edge_tty_recv(edge_port->port, &data, 1);
1993 /* update input line counters */
1994 icount = &edge_port->port->icount;
1995 if (newLsr & LSR_BREAK)
1997 if (newLsr & LSR_OVER_ERR)
1999 if (newLsr & LSR_PAR_ERR)
2001 if (newLsr & LSR_FRM_ERR)
2006 /****************************************************************************
2008 * writes a number of bytes to the Edgeport device's sram starting at the
2010 * If successful returns the number of bytes written, otherwise it returns
2011 * a negative error number of the problem.
2012 ****************************************************************************/
2013 static int sram_write(struct usb_serial *serial, __u16 extAddr, __u16 addr,
2014 __u16 length, const __u8 *data)
2017 __u16 current_length;
2018 unsigned char *transfer_buffer;
2020 dev_dbg(&serial->dev->dev, "%s - %x, %x, %d\n", __func__, extAddr, addr, length);
2022 transfer_buffer = kmalloc(64, GFP_KERNEL);
2023 if (!transfer_buffer)
2026 /* need to split these writes up into 64 byte chunks */
2028 while (length > 0) {
2030 current_length = 64;
2032 current_length = length;
2034 /* dev_dbg(&serial->dev->dev, "%s - writing %x, %x, %d\n", __func__, extAddr, addr, current_length); */
2035 memcpy(transfer_buffer, data, current_length);
2036 result = usb_control_msg(serial->dev,
2037 usb_sndctrlpipe(serial->dev, 0),
2038 USB_REQUEST_ION_WRITE_RAM,
2039 0x40, addr, extAddr, transfer_buffer,
2040 current_length, 300);
2043 length -= current_length;
2044 addr += current_length;
2045 data += current_length;
2048 kfree(transfer_buffer);
2053 /****************************************************************************
2055 * writes a number of bytes to the Edgeport device's ROM starting at the
2057 * If successful returns the number of bytes written, otherwise it returns
2058 * a negative error number of the problem.
2059 ****************************************************************************/
2060 static int rom_write(struct usb_serial *serial, __u16 extAddr, __u16 addr,
2061 __u16 length, const __u8 *data)
2064 __u16 current_length;
2065 unsigned char *transfer_buffer;
2067 transfer_buffer = kmalloc(64, GFP_KERNEL);
2068 if (!transfer_buffer)
2071 /* need to split these writes up into 64 byte chunks */
2073 while (length > 0) {
2075 current_length = 64;
2077 current_length = length;
2078 memcpy(transfer_buffer, data, current_length);
2079 result = usb_control_msg(serial->dev,
2080 usb_sndctrlpipe(serial->dev, 0),
2081 USB_REQUEST_ION_WRITE_ROM, 0x40,
2083 transfer_buffer, current_length, 300);
2086 length -= current_length;
2087 addr += current_length;
2088 data += current_length;
2091 kfree(transfer_buffer);
2096 /****************************************************************************
2098 * reads a number of bytes from the Edgeport device starting at the given
2100 * If successful returns the number of bytes read, otherwise it returns
2101 * a negative error number of the problem.
2102 ****************************************************************************/
2103 static int rom_read(struct usb_serial *serial, __u16 extAddr,
2104 __u16 addr, __u16 length, __u8 *data)
2107 __u16 current_length;
2108 unsigned char *transfer_buffer;
2110 transfer_buffer = kmalloc(64, GFP_KERNEL);
2111 if (!transfer_buffer)
2114 /* need to split these reads up into 64 byte chunks */
2116 while (length > 0) {
2118 current_length = 64;
2120 current_length = length;
2121 result = usb_control_msg(serial->dev,
2122 usb_rcvctrlpipe(serial->dev, 0),
2123 USB_REQUEST_ION_READ_ROM,
2124 0xC0, addr, extAddr, transfer_buffer,
2125 current_length, 300);
2128 memcpy(data, transfer_buffer, current_length);
2129 length -= current_length;
2130 addr += current_length;
2131 data += current_length;
2134 kfree(transfer_buffer);
2139 /****************************************************************************
2141 * Is used to send a IOSP message to the Edgeport device
2142 ****************************************************************************/
2143 static int send_iosp_ext_cmd(struct edgeport_port *edge_port,
2144 __u8 command, __u8 param)
2146 unsigned char *buffer;
2147 unsigned char *currentCommand;
2151 buffer = kmalloc(10, GFP_ATOMIC);
2155 currentCommand = buffer;
2157 MAKE_CMD_EXT_CMD(¤tCommand, &length, edge_port->port->port_number,
2160 status = write_cmd_usb(edge_port, buffer, length);
2162 /* something bad happened, let's free up the memory */
2170 /*****************************************************************************
2172 * this function writes the given buffer out to the bulk write endpoint.
2173 *****************************************************************************/
2174 static int write_cmd_usb(struct edgeport_port *edge_port,
2175 unsigned char *buffer, int length)
2177 struct edgeport_serial *edge_serial =
2178 usb_get_serial_data(edge_port->port->serial);
2179 struct device *dev = &edge_port->port->dev;
2183 usb_serial_debug_data(dev, __func__, length, buffer);
2185 /* Allocate our next urb */
2186 urb = usb_alloc_urb(0, GFP_ATOMIC);
2190 atomic_inc(&CmdUrbs);
2191 dev_dbg(dev, "%s - ALLOCATE URB %p (outstanding %d)\n",
2192 __func__, urb, atomic_read(&CmdUrbs));
2194 usb_fill_bulk_urb(urb, edge_serial->serial->dev,
2195 usb_sndbulkpipe(edge_serial->serial->dev,
2196 edge_serial->bulk_out_endpoint),
2197 buffer, length, edge_bulk_out_cmd_callback, edge_port);
2199 edge_port->commandPending = true;
2200 status = usb_submit_urb(urb, GFP_ATOMIC);
2203 /* something went wrong */
2204 dev_err(dev, "%s - usb_submit_urb(write command) failed, status = %d\n",
2208 atomic_dec(&CmdUrbs);
2213 wait_event(&edge_port->wait_command, !edge_port->commandPending);
2215 if (edge_port->commandPending) {
2216 /* command timed out */
2217 dev_dbg(dev, "%s - command timed out\n", __func__);
2225 /*****************************************************************************
2226 * send_cmd_write_baud_rate
2227 * this function sends the proper command to change the baud rate of the
2229 *****************************************************************************/
2230 static int send_cmd_write_baud_rate(struct edgeport_port *edge_port,
2233 struct edgeport_serial *edge_serial =
2234 usb_get_serial_data(edge_port->port->serial);
2235 struct device *dev = &edge_port->port->dev;
2236 unsigned char *cmdBuffer;
2237 unsigned char *currCmd;
2241 u32 number = edge_port->port->port_number;
2243 if (edge_serial->is_epic &&
2244 !edge_serial->epic_descriptor.Supports.IOSPSetBaudRate) {
2245 dev_dbg(dev, "SendCmdWriteBaudRate - NOT Setting baud rate for port, baud = %d\n",
2250 dev_dbg(dev, "%s - baud = %d\n", __func__, baudRate);
2252 status = calc_baud_rate_divisor(dev, baudRate, &divisor);
2254 dev_err(dev, "%s - bad baud rate\n", __func__);
2258 /* Alloc memory for the string of commands. */
2259 cmdBuffer = kmalloc(0x100, GFP_ATOMIC);
2263 currCmd = cmdBuffer;
2265 /* Enable access to divisor latch */
2266 MAKE_CMD_WRITE_REG(&currCmd, &cmdLen, number, LCR, LCR_DL_ENABLE);
2268 /* Write the divisor itself */
2269 MAKE_CMD_WRITE_REG(&currCmd, &cmdLen, number, DLL, LOW8(divisor));
2270 MAKE_CMD_WRITE_REG(&currCmd, &cmdLen, number, DLM, HIGH8(divisor));
2272 /* Restore original value to disable access to divisor latch */
2273 MAKE_CMD_WRITE_REG(&currCmd, &cmdLen, number, LCR,
2274 edge_port->shadowLCR);
2276 status = write_cmd_usb(edge_port, cmdBuffer, cmdLen);
2278 /* something bad happened, let's free up the memory */
2286 /*****************************************************************************
2287 * calc_baud_rate_divisor
2288 * this function calculates the proper baud rate divisor for the specified
2290 *****************************************************************************/
2291 static int calc_baud_rate_divisor(struct device *dev, int baudrate, int *divisor)
2296 for (i = 0; i < ARRAY_SIZE(divisor_table); i++) {
2297 if (divisor_table[i].BaudRate == baudrate) {
2298 *divisor = divisor_table[i].Divisor;
2303 /* We have tried all of the standard baud rates
2304 * lets try to calculate the divisor for this baud rate
2305 * Make sure the baud rate is reasonable */
2306 if (baudrate > 50 && baudrate < 230400) {
2308 custom = (__u16)((230400L + baudrate/2) / baudrate);
2312 dev_dbg(dev, "%s - Baud %d = %d\n", __func__, baudrate, custom);
2320 /*****************************************************************************
2321 * send_cmd_write_uart_register
2322 * this function builds up a uart register message and sends to the device.
2323 *****************************************************************************/
2324 static int send_cmd_write_uart_register(struct edgeport_port *edge_port,
2325 __u8 regNum, __u8 regValue)
2327 struct edgeport_serial *edge_serial =
2328 usb_get_serial_data(edge_port->port->serial);
2329 struct device *dev = &edge_port->port->dev;
2330 unsigned char *cmdBuffer;
2331 unsigned char *currCmd;
2332 unsigned long cmdLen = 0;
2335 dev_dbg(dev, "%s - write to %s register 0x%02x\n",
2336 (regNum == MCR) ? "MCR" : "LCR", __func__, regValue);
2338 if (edge_serial->is_epic &&
2339 !edge_serial->epic_descriptor.Supports.IOSPWriteMCR &&
2341 dev_dbg(dev, "SendCmdWriteUartReg - Not writing to MCR Register\n");
2345 if (edge_serial->is_epic &&
2346 !edge_serial->epic_descriptor.Supports.IOSPWriteLCR &&
2348 dev_dbg(dev, "SendCmdWriteUartReg - Not writing to LCR Register\n");
2352 /* Alloc memory for the string of commands. */
2353 cmdBuffer = kmalloc(0x10, GFP_ATOMIC);
2354 if (cmdBuffer == NULL)
2357 currCmd = cmdBuffer;
2359 /* Build a cmd in the buffer to write the given register */
2360 MAKE_CMD_WRITE_REG(&currCmd, &cmdLen, edge_port->port->port_number,
2363 status = write_cmd_usb(edge_port, cmdBuffer, cmdLen);
2365 /* something bad happened, let's free up the memory */
2373 /*****************************************************************************
2374 * change_port_settings
2375 * This routine is called to set the UART on the device to match the
2376 * specified new settings.
2377 *****************************************************************************/
2379 static void change_port_settings(struct tty_struct *tty,
2380 struct edgeport_port *edge_port, struct ktermios *old_termios)
2382 struct device *dev = &edge_port->port->dev;
2383 struct edgeport_serial *edge_serial =
2384 usb_get_serial_data(edge_port->port->serial);
2395 if (!edge_port->open &&
2396 !edge_port->openPending) {
2397 dev_dbg(dev, "%s - port not opened\n", __func__);
2401 cflag = tty->termios.c_cflag;
2403 switch (cflag & CSIZE) {
2405 lData = LCR_BITS_5; mask = 0x1f;
2406 dev_dbg(dev, "%s - data bits = 5\n", __func__);
2409 lData = LCR_BITS_6; mask = 0x3f;
2410 dev_dbg(dev, "%s - data bits = 6\n", __func__);
2413 lData = LCR_BITS_7; mask = 0x7f;
2414 dev_dbg(dev, "%s - data bits = 7\n", __func__);
2419 dev_dbg(dev, "%s - data bits = 8\n", __func__);
2423 lParity = LCR_PAR_NONE;
2424 if (cflag & PARENB) {
2425 if (cflag & CMSPAR) {
2426 if (cflag & PARODD) {
2427 lParity = LCR_PAR_MARK;
2428 dev_dbg(dev, "%s - parity = mark\n", __func__);
2430 lParity = LCR_PAR_SPACE;
2431 dev_dbg(dev, "%s - parity = space\n", __func__);
2433 } else if (cflag & PARODD) {
2434 lParity = LCR_PAR_ODD;
2435 dev_dbg(dev, "%s - parity = odd\n", __func__);
2437 lParity = LCR_PAR_EVEN;
2438 dev_dbg(dev, "%s - parity = even\n", __func__);
2441 dev_dbg(dev, "%s - parity = none\n", __func__);
2444 if (cflag & CSTOPB) {
2446 dev_dbg(dev, "%s - stop bits = 2\n", __func__);
2449 dev_dbg(dev, "%s - stop bits = 1\n", __func__);
2452 /* figure out the flow control settings */
2453 rxFlow = txFlow = 0x00;
2454 if (cflag & CRTSCTS) {
2455 rxFlow |= IOSP_RX_FLOW_RTS;
2456 txFlow |= IOSP_TX_FLOW_CTS;
2457 dev_dbg(dev, "%s - RTS/CTS is enabled\n", __func__);
2459 dev_dbg(dev, "%s - RTS/CTS is disabled\n", __func__);
2462 /* if we are implementing XON/XOFF, set the start and stop character
2464 if (I_IXOFF(tty) || I_IXON(tty)) {
2465 unsigned char stop_char = STOP_CHAR(tty);
2466 unsigned char start_char = START_CHAR(tty);
2468 if ((!edge_serial->is_epic) ||
2469 ((edge_serial->is_epic) &&
2470 (edge_serial->epic_descriptor.Supports.IOSPSetXChar))) {
2471 send_iosp_ext_cmd(edge_port,
2472 IOSP_CMD_SET_XON_CHAR, start_char);
2473 send_iosp_ext_cmd(edge_port,
2474 IOSP_CMD_SET_XOFF_CHAR, stop_char);
2477 /* if we are implementing INBOUND XON/XOFF */
2479 rxFlow |= IOSP_RX_FLOW_XON_XOFF;
2480 dev_dbg(dev, "%s - INBOUND XON/XOFF is enabled, XON = %2x, XOFF = %2x\n",
2481 __func__, start_char, stop_char);
2483 dev_dbg(dev, "%s - INBOUND XON/XOFF is disabled\n", __func__);
2486 /* if we are implementing OUTBOUND XON/XOFF */
2488 txFlow |= IOSP_TX_FLOW_XON_XOFF;
2489 dev_dbg(dev, "%s - OUTBOUND XON/XOFF is enabled, XON = %2x, XOFF = %2x\n",
2490 __func__, start_char, stop_char);
2492 dev_dbg(dev, "%s - OUTBOUND XON/XOFF is disabled\n", __func__);
2496 /* Set flow control to the configured value */
2497 if ((!edge_serial->is_epic) ||
2498 ((edge_serial->is_epic) &&
2499 (edge_serial->epic_descriptor.Supports.IOSPSetRxFlow)))
2500 send_iosp_ext_cmd(edge_port, IOSP_CMD_SET_RX_FLOW, rxFlow);
2501 if ((!edge_serial->is_epic) ||
2502 ((edge_serial->is_epic) &&
2503 (edge_serial->epic_descriptor.Supports.IOSPSetTxFlow)))
2504 send_iosp_ext_cmd(edge_port, IOSP_CMD_SET_TX_FLOW, txFlow);
2507 edge_port->shadowLCR &= ~(LCR_BITS_MASK | LCR_STOP_MASK | LCR_PAR_MASK);
2508 edge_port->shadowLCR |= (lData | lParity | lStop);
2510 edge_port->validDataMask = mask;
2512 /* Send the updated LCR value to the EdgePort */
2513 status = send_cmd_write_uart_register(edge_port, LCR,
2514 edge_port->shadowLCR);
2518 /* set up the MCR register and send it to the EdgePort */
2519 edge_port->shadowMCR = MCR_MASTER_IE;
2521 edge_port->shadowMCR |= (MCR_DTR | MCR_RTS);
2523 status = send_cmd_write_uart_register(edge_port, MCR,
2524 edge_port->shadowMCR);
2528 /* Determine divisor based on baud rate */
2529 baud = tty_get_baud_rate(tty);
2531 /* pick a default, any default... */
2535 dev_dbg(dev, "%s - baud rate = %d\n", __func__, baud);
2536 status = send_cmd_write_baud_rate(edge_port, baud);
2538 /* Speed change was not possible - put back the old speed */
2539 baud = tty_termios_baud_rate(old_termios);
2540 tty_encode_baud_rate(tty, baud, baud);
2545 /****************************************************************************
2547 * Turns a string from Unicode into ASCII.
2548 * Doesn't do a good job with any characters that are outside the normal
2549 * ASCII range, but it's only for debugging...
2550 * NOTE: expects the unicode in LE format
2551 ****************************************************************************/
2552 static void unicode_to_ascii(char *string, int buflen,
2553 __le16 *unicode, int unicode_size)
2557 if (buflen <= 0) /* never happens, but... */
2559 --buflen; /* space for nul */
2561 for (i = 0; i < unicode_size; i++) {
2564 string[i] = (char)(le16_to_cpu(unicode[i]));
2570 /****************************************************************************
2571 * get_manufacturing_desc
2572 * reads in the manufacturing descriptor and stores it into the serial
2574 ****************************************************************************/
2575 static void get_manufacturing_desc(struct edgeport_serial *edge_serial)
2577 struct device *dev = &edge_serial->serial->dev->dev;
2580 dev_dbg(dev, "getting manufacturer descriptor\n");
2582 response = rom_read(edge_serial->serial,
2583 (EDGE_MANUF_DESC_ADDR & 0xffff0000) >> 16,
2584 (__u16)(EDGE_MANUF_DESC_ADDR & 0x0000ffff),
2585 EDGE_MANUF_DESC_LEN,
2586 (__u8 *)(&edge_serial->manuf_descriptor));
2589 dev_err(dev, "error in getting manufacturer descriptor\n");
2592 dev_dbg(dev, "**Manufacturer Descriptor\n");
2593 dev_dbg(dev, " RomSize: %dK\n",
2594 edge_serial->manuf_descriptor.RomSize);
2595 dev_dbg(dev, " RamSize: %dK\n",
2596 edge_serial->manuf_descriptor.RamSize);
2597 dev_dbg(dev, " CpuRev: %d\n",
2598 edge_serial->manuf_descriptor.CpuRev);
2599 dev_dbg(dev, " BoardRev: %d\n",
2600 edge_serial->manuf_descriptor.BoardRev);
2601 dev_dbg(dev, " NumPorts: %d\n",
2602 edge_serial->manuf_descriptor.NumPorts);
2603 dev_dbg(dev, " DescDate: %d/%d/%d\n",
2604 edge_serial->manuf_descriptor.DescDate[0],
2605 edge_serial->manuf_descriptor.DescDate[1],
2606 edge_serial->manuf_descriptor.DescDate[2]+1900);
2607 unicode_to_ascii(string, sizeof(string),
2608 edge_serial->manuf_descriptor.SerialNumber,
2609 edge_serial->manuf_descriptor.SerNumLength/2);
2610 dev_dbg(dev, " SerialNumber: %s\n", string);
2611 unicode_to_ascii(string, sizeof(string),
2612 edge_serial->manuf_descriptor.AssemblyNumber,
2613 edge_serial->manuf_descriptor.AssemblyNumLength/2);
2614 dev_dbg(dev, " AssemblyNumber: %s\n", string);
2615 unicode_to_ascii(string, sizeof(string),
2616 edge_serial->manuf_descriptor.OemAssyNumber,
2617 edge_serial->manuf_descriptor.OemAssyNumLength/2);
2618 dev_dbg(dev, " OemAssyNumber: %s\n", string);
2619 dev_dbg(dev, " UartType: %d\n",
2620 edge_serial->manuf_descriptor.UartType);
2621 dev_dbg(dev, " IonPid: %d\n",
2622 edge_serial->manuf_descriptor.IonPid);
2623 dev_dbg(dev, " IonConfig: %d\n",
2624 edge_serial->manuf_descriptor.IonConfig);
2629 /****************************************************************************
2631 * reads in the bootloader descriptor and stores it into the serial
2633 ****************************************************************************/
2634 static void get_boot_desc(struct edgeport_serial *edge_serial)
2636 struct device *dev = &edge_serial->serial->dev->dev;
2639 dev_dbg(dev, "getting boot descriptor\n");
2641 response = rom_read(edge_serial->serial,
2642 (EDGE_BOOT_DESC_ADDR & 0xffff0000) >> 16,
2643 (__u16)(EDGE_BOOT_DESC_ADDR & 0x0000ffff),
2645 (__u8 *)(&edge_serial->boot_descriptor));
2648 dev_err(dev, "error in getting boot descriptor\n");
2650 dev_dbg(dev, "**Boot Descriptor:\n");
2651 dev_dbg(dev, " BootCodeLength: %d\n",
2652 le16_to_cpu(edge_serial->boot_descriptor.BootCodeLength));
2653 dev_dbg(dev, " MajorVersion: %d\n",
2654 edge_serial->boot_descriptor.MajorVersion);
2655 dev_dbg(dev, " MinorVersion: %d\n",
2656 edge_serial->boot_descriptor.MinorVersion);
2657 dev_dbg(dev, " BuildNumber: %d\n",
2658 le16_to_cpu(edge_serial->boot_descriptor.BuildNumber));
2659 dev_dbg(dev, " Capabilities: 0x%x\n",
2660 le16_to_cpu(edge_serial->boot_descriptor.Capabilities));
2661 dev_dbg(dev, " UConfig0: %d\n",
2662 edge_serial->boot_descriptor.UConfig0);
2663 dev_dbg(dev, " UConfig1: %d\n",
2664 edge_serial->boot_descriptor.UConfig1);
2669 /****************************************************************************
2670 * load_application_firmware
2671 * This is called to load the application firmware to the device
2672 ****************************************************************************/
2673 static void load_application_firmware(struct edgeport_serial *edge_serial)
2675 struct device *dev = &edge_serial->serial->dev->dev;
2676 const struct ihex_binrec *rec;
2677 const struct firmware *fw;
2678 const char *fw_name;
2679 const char *fw_info;
2684 switch (edge_serial->product_info.iDownloadFile) {
2685 case EDGE_DOWNLOAD_FILE_I930:
2686 fw_info = "downloading firmware version (930)";
2687 fw_name = "edgeport/down.fw";
2690 case EDGE_DOWNLOAD_FILE_80251:
2691 fw_info = "downloading firmware version (80251)";
2692 fw_name = "edgeport/down2.fw";
2695 case EDGE_DOWNLOAD_FILE_NONE:
2696 dev_dbg(dev, "No download file specified, skipping download\n");
2703 response = request_ihex_firmware(&fw, fw_name,
2704 &edge_serial->serial->dev->dev);
2706 dev_err(dev, "Failed to load image \"%s\" err %d\n",
2711 rec = (const struct ihex_binrec *)fw->data;
2712 build = (rec->data[2] << 8) | rec->data[3];
2714 dev_dbg(dev, "%s %d.%d.%d\n", fw_info, rec->data[0], rec->data[1], build);
2716 edge_serial->product_info.FirmwareMajorVersion = rec->data[0];
2717 edge_serial->product_info.FirmwareMinorVersion = rec->data[1];
2718 edge_serial->product_info.FirmwareBuildNumber = cpu_to_le16(build);
2720 for (rec = ihex_next_binrec(rec); rec;
2721 rec = ihex_next_binrec(rec)) {
2722 Operaddr = be32_to_cpu(rec->addr);
2723 response = sram_write(edge_serial->serial,
2726 be16_to_cpu(rec->len),
2729 dev_err(&edge_serial->serial->dev->dev,
2730 "sram_write failed (%x, %x, %d)\n",
2731 Operaddr >> 16, Operaddr & 0xFFFF,
2732 be16_to_cpu(rec->len));
2737 dev_dbg(dev, "sending exec_dl_code\n");
2738 response = usb_control_msg (edge_serial->serial->dev,
2739 usb_sndctrlpipe(edge_serial->serial->dev, 0),
2740 USB_REQUEST_ION_EXEC_DL_CODE,
2741 0x40, 0x4000, 0x0001, NULL, 0, 3000);
2743 release_firmware(fw);
2747 /****************************************************************************
2749 ****************************************************************************/
2750 static int edge_startup(struct usb_serial *serial)
2752 struct edgeport_serial *edge_serial;
2753 struct usb_device *dev;
2754 struct device *ddev = &serial->dev->dev;
2757 bool interrupt_in_found;
2759 bool bulk_out_found;
2760 static __u32 descriptor[3] = { EDGE_COMPATIBILITY_MASK0,
2761 EDGE_COMPATIBILITY_MASK1,
2762 EDGE_COMPATIBILITY_MASK2 };
2766 /* create our private serial structure */
2767 edge_serial = kzalloc(sizeof(struct edgeport_serial), GFP_KERNEL);
2771 spin_lock_init(&edge_serial->es_lock);
2772 edge_serial->serial = serial;
2773 usb_set_serial_data(serial, edge_serial);
2775 /* get the name for the device from the device */
2776 i = usb_string(dev, dev->descriptor.iManufacturer,
2777 &edge_serial->name[0], MAX_NAME_LEN+1);
2780 edge_serial->name[i++] = ' ';
2781 usb_string(dev, dev->descriptor.iProduct,
2782 &edge_serial->name[i], MAX_NAME_LEN+2 - i);
2784 dev_info(&serial->dev->dev, "%s detected\n", edge_serial->name);
2786 /* Read the epic descriptor */
2787 if (get_epic_descriptor(edge_serial) <= 0) {
2788 /* memcpy descriptor to Supports structures */
2789 memcpy(&edge_serial->epic_descriptor.Supports, descriptor,
2790 sizeof(struct edge_compatibility_bits));
2792 /* get the manufacturing descriptor for this device */
2793 get_manufacturing_desc(edge_serial);
2795 /* get the boot descriptor */
2796 get_boot_desc(edge_serial);
2798 get_product_info(edge_serial);
2801 /* set the number of ports from the manufacturing description */
2802 /* serial->num_ports = serial->product_info.NumPorts; */
2803 if ((!edge_serial->is_epic) &&
2804 (edge_serial->product_info.NumPorts != serial->num_ports)) {
2806 "Device Reported %d serial ports vs. core thinking we have %d ports, email greg@kroah.com this information.\n",
2807 edge_serial->product_info.NumPorts,
2811 dev_dbg(ddev, "%s - time 1 %ld\n", __func__, jiffies);
2813 /* If not an EPiC device */
2814 if (!edge_serial->is_epic) {
2815 /* now load the application firmware into this device */
2816 load_application_firmware(edge_serial);
2818 dev_dbg(ddev, "%s - time 2 %ld\n", __func__, jiffies);
2820 /* Check current Edgeport EEPROM and update if necessary */
2821 update_edgeport_E2PROM(edge_serial);
2823 dev_dbg(ddev, "%s - time 3 %ld\n", __func__, jiffies);
2825 /* set the configuration to use #1 */
2826 /* dev_dbg(ddev, "set_configuration 1\n"); */
2827 /* usb_set_configuration (dev, 1); */
2829 dev_dbg(ddev, " FirmwareMajorVersion %d.%d.%d\n",
2830 edge_serial->product_info.FirmwareMajorVersion,
2831 edge_serial->product_info.FirmwareMinorVersion,
2832 le16_to_cpu(edge_serial->product_info.FirmwareBuildNumber));
2834 /* we set up the pointers to the endpoints in the edge_open function,
2835 * as the structures aren't created yet. */
2839 if (edge_serial->is_epic) {
2840 /* EPIC thing, set up our interrupt polling now and our read
2841 * urb, so that the device knows it really is connected. */
2842 interrupt_in_found = bulk_in_found = bulk_out_found = false;
2843 for (i = 0; i < serial->interface->altsetting[0]
2844 .desc.bNumEndpoints; ++i) {
2845 struct usb_endpoint_descriptor *endpoint;
2848 endpoint = &serial->interface->altsetting[0].
2850 buffer_size = usb_endpoint_maxp(endpoint);
2851 if (!interrupt_in_found &&
2852 (usb_endpoint_is_int_in(endpoint))) {
2853 /* we found a interrupt in endpoint */
2854 dev_dbg(ddev, "found interrupt in\n");
2856 /* not set up yet, so do it now */
2857 edge_serial->interrupt_read_urb =
2858 usb_alloc_urb(0, GFP_KERNEL);
2859 if (!edge_serial->interrupt_read_urb)
2862 edge_serial->interrupt_in_buffer =
2863 kmalloc(buffer_size, GFP_KERNEL);
2864 if (!edge_serial->interrupt_in_buffer) {
2865 usb_free_urb(edge_serial->interrupt_read_urb);
2868 edge_serial->interrupt_in_endpoint =
2869 endpoint->bEndpointAddress;
2871 /* set up our interrupt urb */
2873 edge_serial->interrupt_read_urb,
2876 endpoint->bEndpointAddress),
2877 edge_serial->interrupt_in_buffer,
2879 edge_interrupt_callback,
2881 endpoint->bInterval);
2883 interrupt_in_found = true;
2886 if (!bulk_in_found &&
2887 (usb_endpoint_is_bulk_in(endpoint))) {
2888 /* we found a bulk in endpoint */
2889 dev_dbg(ddev, "found bulk in\n");
2891 /* not set up yet, so do it now */
2892 edge_serial->read_urb =
2893 usb_alloc_urb(0, GFP_KERNEL);
2894 if (!edge_serial->read_urb)
2897 edge_serial->bulk_in_buffer =
2898 kmalloc(buffer_size, GFP_KERNEL);
2899 if (!edge_serial->bulk_in_buffer) {
2900 usb_free_urb(edge_serial->read_urb);
2903 edge_serial->bulk_in_endpoint =
2904 endpoint->bEndpointAddress;
2906 /* set up our bulk in urb */
2907 usb_fill_bulk_urb(edge_serial->read_urb, dev,
2908 usb_rcvbulkpipe(dev,
2909 endpoint->bEndpointAddress),
2910 edge_serial->bulk_in_buffer,
2911 usb_endpoint_maxp(endpoint),
2912 edge_bulk_in_callback,
2914 bulk_in_found = true;
2917 if (!bulk_out_found &&
2918 (usb_endpoint_is_bulk_out(endpoint))) {
2919 /* we found a bulk out endpoint */
2920 dev_dbg(ddev, "found bulk out\n");
2921 edge_serial->bulk_out_endpoint =
2922 endpoint->bEndpointAddress;
2923 bulk_out_found = true;
2927 if (!interrupt_in_found || !bulk_in_found || !bulk_out_found) {
2928 dev_err(ddev, "Error - the proper endpoints were not found!\n");
2932 /* start interrupt read for this edgeport this interrupt will
2933 * continue as long as the edgeport is connected */
2934 response = usb_submit_urb(edge_serial->interrupt_read_urb,
2937 dev_err(ddev, "%s - Error %d submitting control urb\n",
2938 __func__, response);
2944 /****************************************************************************
2946 * This function is called whenever the device is removed from the usb bus.
2947 ****************************************************************************/
2948 static void edge_disconnect(struct usb_serial *serial)
2950 struct edgeport_serial *edge_serial = usb_get_serial_data(serial);
2952 /* stop reads and writes on all ports */
2953 /* free up our endpoint stuff */
2954 if (edge_serial->is_epic) {
2955 usb_kill_urb(edge_serial->interrupt_read_urb);
2956 usb_free_urb(edge_serial->interrupt_read_urb);
2957 kfree(edge_serial->interrupt_in_buffer);
2959 usb_kill_urb(edge_serial->read_urb);
2960 usb_free_urb(edge_serial->read_urb);
2961 kfree(edge_serial->bulk_in_buffer);
2966 /****************************************************************************
2968 * This function is called when the device structure is deallocated.
2969 ****************************************************************************/
2970 static void edge_release(struct usb_serial *serial)
2972 struct edgeport_serial *edge_serial = usb_get_serial_data(serial);
2977 static int edge_port_probe(struct usb_serial_port *port)
2979 struct edgeport_port *edge_port;
2981 edge_port = kzalloc(sizeof(*edge_port), GFP_KERNEL);
2985 spin_lock_init(&edge_port->ep_lock);
2986 edge_port->port = port;
2988 usb_set_serial_port_data(port, edge_port);
2993 static int edge_port_remove(struct usb_serial_port *port)
2995 struct edgeport_port *edge_port;
2997 edge_port = usb_get_serial_port_data(port);
3003 module_usb_serial_driver(serial_drivers, id_table_combined);
3005 MODULE_AUTHOR(DRIVER_AUTHOR);
3006 MODULE_DESCRIPTION(DRIVER_DESC);
3007 MODULE_LICENSE("GPL");
3008 MODULE_FIRMWARE("edgeport/boot.fw");
3009 MODULE_FIRMWARE("edgeport/boot2.fw");
3010 MODULE_FIRMWARE("edgeport/down.fw");
3011 MODULE_FIRMWARE("edgeport/down2.fw");