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authorAlan Cox <alan@redhat.com>2008-07-22 06:16:34 -0400
committerLinus Torvalds <torvalds@linux-foundation.org>2008-07-22 16:03:27 -0400
commit03f0dbf74c7a117c270e63d62d5e4927af6f295b (patch)
tree068aef14e0f6182744bcc68988cc250b26a76d05 /drivers/usb/serial/io_edgeport.c
parent4da1a17dbc5211ac90264cfc4f0e076c8bdc1732 (diff)
tty-usb-io_edgeport: Coding style
Signed-off-by: Alan Cox <alan@redhat.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'drivers/usb/serial/io_edgeport.c')
-rw-r--r--drivers/usb/serial/io_edgeport.c1823
1 files changed, 1020 insertions, 803 deletions
diff --git a/drivers/usb/serial/io_edgeport.c b/drivers/usb/serial/io_edgeport.c
index 29346d79df7b..b4bd6847a96d 100644
--- a/drivers/usb/serial/io_edgeport.c
+++ b/drivers/usb/serial/io_edgeport.c
@@ -44,7 +44,7 @@
44#include <linux/wait.h> 44#include <linux/wait.h>
45#include <linux/firmware.h> 45#include <linux/firmware.h>
46#include <linux/ihex.h> 46#include <linux/ihex.h>
47#include <asm/uaccess.h> 47#include <linux/uaccess.h>
48#include <linux/usb.h> 48#include <linux/usb.h>
49#include <linux/usb/serial.h> 49#include <linux/usb/serial.h>
50#include "io_edgeport.h" 50#include "io_edgeport.h"
@@ -66,16 +66,16 @@
66 66
67/* receive port state */ 67/* receive port state */
68enum RXSTATE { 68enum RXSTATE {
69 EXPECT_HDR1 = 0, /* Expect header byte 1 */ 69 EXPECT_HDR1 = 0, /* Expect header byte 1 */
70 EXPECT_HDR2 = 1, /* Expect header byte 2 */ 70 EXPECT_HDR2 = 1, /* Expect header byte 2 */
71 EXPECT_DATA = 2, /* Expect 'RxBytesRemaining' data */ 71 EXPECT_DATA = 2, /* Expect 'RxBytesRemaining' data */
72 EXPECT_HDR3 = 3, /* Expect header byte 3 (for status hdrs only) */ 72 EXPECT_HDR3 = 3, /* Expect header byte 3 (for status hdrs only) */
73}; 73};
74 74
75 75
76/* Transmit Fifo 76/* Transmit Fifo
77 * This Transmit queue is an extension of the edgeport Rx buffer. 77 * This Transmit queue is an extension of the edgeport Rx buffer.
78 * The maximum amount of data buffered in both the edgeport 78 * The maximum amount of data buffered in both the edgeport
79 * Rx buffer (maxTxCredits) and this buffer will never exceed maxTxCredits. 79 * Rx buffer (maxTxCredits) and this buffer will never exceed maxTxCredits.
80 */ 80 */
81struct TxFifo { 81struct TxFifo {
@@ -132,12 +132,12 @@ struct edgeport_serial {
132 int is_epic; /* flag if EPiC device or not */ 132 int is_epic; /* flag if EPiC device or not */
133 133
134 __u8 interrupt_in_endpoint; /* the interrupt endpoint handle */ 134 __u8 interrupt_in_endpoint; /* the interrupt endpoint handle */
135 unsigned char * interrupt_in_buffer; /* the buffer we use for the interrupt endpoint */ 135 unsigned char *interrupt_in_buffer; /* the buffer we use for the interrupt endpoint */
136 struct urb * interrupt_read_urb; /* our interrupt urb */ 136 struct urb *interrupt_read_urb; /* our interrupt urb */
137 137
138 __u8 bulk_in_endpoint; /* the bulk in endpoint handle */ 138 __u8 bulk_in_endpoint; /* the bulk in endpoint handle */
139 unsigned char * bulk_in_buffer; /* the buffer we use for the bulk in endpoint */ 139 unsigned char *bulk_in_buffer; /* the buffer we use for the bulk in endpoint */
140 struct urb * read_urb; /* our bulk read urb */ 140 struct urb *read_urb; /* our bulk read urb */
141 bool read_in_progress; 141 bool read_in_progress;
142 spinlock_t es_lock; 142 spinlock_t es_lock;
143 143
@@ -162,16 +162,17 @@ struct divisor_table_entry {
162 __u16 Divisor; 162 __u16 Divisor;
163}; 163};
164 164
165// 165/*
166// Define table of divisors for Rev A EdgePort/4 hardware 166 * Define table of divisors for Rev A EdgePort/4 hardware
167// These assume a 3.6864MHz crystal, the standard /16, and 167 * These assume a 3.6864MHz crystal, the standard /16, and
168// MCR.7 = 0. 168 * MCR.7 = 0.
169// 169 */
170
170static const struct divisor_table_entry divisor_table[] = { 171static const struct divisor_table_entry divisor_table[] = {
171 { 50, 4608}, 172 { 50, 4608},
172 { 75, 3072}, 173 { 75, 3072},
173 { 110, 2095}, /* 2094.545455 => 230450 => .0217 % over */ 174 { 110, 2095}, /* 2094.545455 => 230450 => .0217 % over */
174 { 134, 1713}, /* 1713.011152 => 230398.5 => .00065% under */ 175 { 134, 1713}, /* 1713.011152 => 230398.5 => .00065% under */
175 { 150, 1536}, 176 { 150, 1536},
176 { 300, 768}, 177 { 300, 768},
177 { 600, 384}, 178 { 600, 384},
@@ -194,65 +195,86 @@ static int debug;
194 195
195static int low_latency = 1; /* tty low latency flag, on by default */ 196static int low_latency = 1; /* tty low latency flag, on by default */
196 197
197static atomic_t CmdUrbs; /* Number of outstanding Command Write Urbs */ 198static atomic_t CmdUrbs; /* Number of outstanding Command Write Urbs */
198 199
199 200
200/* local function prototypes */ 201/* local function prototypes */
201 202
202/* function prototypes for all URB callbacks */ 203/* function prototypes for all URB callbacks */
203static void edge_interrupt_callback (struct urb *urb); 204static void edge_interrupt_callback(struct urb *urb);
204static void edge_bulk_in_callback (struct urb *urb); 205static void edge_bulk_in_callback(struct urb *urb);
205static void edge_bulk_out_data_callback (struct urb *urb); 206static void edge_bulk_out_data_callback(struct urb *urb);
206static void edge_bulk_out_cmd_callback (struct urb *urb); 207static void edge_bulk_out_cmd_callback(struct urb *urb);
207 208
208/* function prototypes for the usbserial callbacks */ 209/* function prototypes for the usbserial callbacks */
209static int edge_open (struct tty_struct *tty, struct usb_serial_port *port, struct file *filp); 210static int edge_open(struct tty_struct *tty, struct usb_serial_port *port,
210static void edge_close (struct tty_struct *tty, struct usb_serial_port *port, struct file *filp); 211 struct file *filp);
211static int edge_write (struct tty_struct *tty, struct usb_serial_port *port, const unsigned char *buf, int count); 212static void edge_close(struct tty_struct *tty, struct usb_serial_port *port,
212static int edge_write_room (struct tty_struct *tty); 213 struct file *filp);
213static int edge_chars_in_buffer (struct tty_struct *tty); 214static int edge_write(struct tty_struct *tty, struct usb_serial_port *port,
214static void edge_throttle (struct tty_struct *tty); 215 const unsigned char *buf, int count);
215static void edge_unthrottle (struct tty_struct *tty); 216static int edge_write_room(struct tty_struct *tty);
216static void edge_set_termios (struct tty_struct *tty, struct usb_serial_port *port, struct ktermios *old_termios); 217static int edge_chars_in_buffer(struct tty_struct *tty);
217static int edge_ioctl (struct tty_struct *tty, struct file *file, unsigned int cmd, unsigned long arg); 218static void edge_throttle(struct tty_struct *tty);
218static void edge_break (struct tty_struct *tty, int break_state); 219static void edge_unthrottle(struct tty_struct *tty);
219static int edge_tiocmget (struct tty_struct *tty, struct file *file); 220static void edge_set_termios(struct tty_struct *tty,
220static int edge_tiocmset (struct tty_struct *tty, struct file *file, unsigned int set, unsigned int clear); 221 struct usb_serial_port *port,
221static int edge_startup (struct usb_serial *serial); 222 struct ktermios *old_termios);
222static void edge_shutdown (struct usb_serial *serial); 223static int edge_ioctl(struct tty_struct *tty, struct file *file,
223 224 unsigned int cmd, unsigned long arg);
225static void edge_break(struct tty_struct *tty, int break_state);
226static int edge_tiocmget(struct tty_struct *tty, struct file *file);
227static int edge_tiocmset(struct tty_struct *tty, struct file *file,
228 unsigned int set, unsigned int clear);
229static int edge_startup(struct usb_serial *serial);
230static void edge_shutdown(struct usb_serial *serial);
224 231
225#include "io_tables.h" /* all of the devices that this driver supports */ 232#include "io_tables.h" /* all of the devices that this driver supports */
226 233
227/* function prototypes for all of our local functions */ 234/* function prototypes for all of our local functions */
228static void process_rcvd_data (struct edgeport_serial *edge_serial, unsigned char *buffer, __u16 bufferLength); 235
229static void process_rcvd_status (struct edgeport_serial *edge_serial, __u8 byte2, __u8 byte3); 236static void process_rcvd_data(struct edgeport_serial *edge_serial,
230static void edge_tty_recv (struct device *dev, struct tty_struct *tty, unsigned char *data, int length); 237 unsigned char *buffer, __u16 bufferLength);
231static void handle_new_msr (struct edgeport_port *edge_port, __u8 newMsr); 238static void process_rcvd_status(struct edgeport_serial *edge_serial,
232static void handle_new_lsr (struct edgeport_port *edge_port, __u8 lsrData, __u8 lsr, __u8 data); 239 __u8 byte2, __u8 byte3);
233static int send_iosp_ext_cmd (struct edgeport_port *edge_port, __u8 command, __u8 param); 240static void edge_tty_recv(struct device *dev, struct tty_struct *tty,
234static int calc_baud_rate_divisor (int baud_rate, int *divisor); 241 unsigned char *data, int length);
235static int send_cmd_write_baud_rate (struct edgeport_port *edge_port, int baudRate); 242static void handle_new_msr(struct edgeport_port *edge_port, __u8 newMsr);
236static void change_port_settings (struct tty_struct *tty, struct edgeport_port *edge_port, 243static void handle_new_lsr(struct edgeport_port *edge_port, __u8 lsrData,
237 struct ktermios *old_termios); 244 __u8 lsr, __u8 data);
238static int send_cmd_write_uart_register (struct edgeport_port *edge_port, __u8 regNum, __u8 regValue); 245static int send_iosp_ext_cmd(struct edgeport_port *edge_port, __u8 command,
239static int write_cmd_usb (struct edgeport_port *edge_port, unsigned char *buffer, int writeLength); 246 __u8 param);
240static void send_more_port_data (struct edgeport_serial *edge_serial, struct edgeport_port *edge_port); 247static int calc_baud_rate_divisor(int baud_rate, int *divisor);
241 248static int send_cmd_write_baud_rate(struct edgeport_port *edge_port,
242static int sram_write (struct usb_serial *serial, __u16 extAddr, __u16 addr, __u16 length, const __u8 *data); 249 int baudRate);
243static int rom_read (struct usb_serial *serial, __u16 extAddr, __u16 addr, __u16 length, __u8 *data); 250static void change_port_settings(struct tty_struct *tty,
244static int rom_write (struct usb_serial *serial, __u16 extAddr, __u16 addr, __u16 length, const __u8 *data); 251 struct edgeport_port *edge_port,
245static void get_manufacturing_desc (struct edgeport_serial *edge_serial); 252 struct ktermios *old_termios);
246static void get_boot_desc (struct edgeport_serial *edge_serial); 253static int send_cmd_write_uart_register(struct edgeport_port *edge_port,
247static void load_application_firmware (struct edgeport_serial *edge_serial); 254 __u8 regNum, __u8 regValue);
248 255static int write_cmd_usb(struct edgeport_port *edge_port,
249static void unicode_to_ascii(char *string, int buflen, __le16 *unicode, int unicode_size); 256 unsigned char *buffer, int writeLength);
250 257static void send_more_port_data(struct edgeport_serial *edge_serial,
251 258 struct edgeport_port *edge_port);
252// ************************************************************************ 259
253// ************************************************************************ 260static int sram_write(struct usb_serial *serial, __u16 extAddr, __u16 addr,
254// ************************************************************************ 261 __u16 length, const __u8 *data);
255// ************************************************************************ 262static int rom_read(struct usb_serial *serial, __u16 extAddr, __u16 addr,
263 __u16 length, __u8 *data);
264static int rom_write(struct usb_serial *serial, __u16 extAddr, __u16 addr,
265 __u16 length, const __u8 *data);
266static void get_manufacturing_desc(struct edgeport_serial *edge_serial);
267static void get_boot_desc(struct edgeport_serial *edge_serial);
268static void load_application_firmware(struct edgeport_serial *edge_serial);
269
270static void unicode_to_ascii(char *string, int buflen,
271 __le16 *unicode, int unicode_size);
272
273
274/* ************************************************************************ */
275/* ************************************************************************ */
276/* ************************************************************************ */
277/* ************************************************************************ */
256 278
257/************************************************************************ 279/************************************************************************
258 * * 280 * *
@@ -262,7 +284,7 @@ static void unicode_to_ascii(char *string, int buflen, __le16 *unicode, int unic
262 * embedded in this driver * 284 * embedded in this driver *
263 * * 285 * *
264 ************************************************************************/ 286 ************************************************************************/
265static void update_edgeport_E2PROM (struct edgeport_serial *edge_serial) 287static void update_edgeport_E2PROM(struct edgeport_serial *edge_serial)
266{ 288{
267 __u32 BootCurVer; 289 __u32 BootCurVer;
268 __u32 BootNewVer; 290 __u32 BootNewVer;
@@ -276,16 +298,14 @@ static void update_edgeport_E2PROM (struct edgeport_serial *edge_serial)
276 int response; 298 int response;
277 299
278 switch (edge_serial->product_info.iDownloadFile) { 300 switch (edge_serial->product_info.iDownloadFile) {
279 case EDGE_DOWNLOAD_FILE_I930: 301 case EDGE_DOWNLOAD_FILE_I930:
280 fw_name = "edgeport/boot.fw"; 302 fw_name = "edgeport/boot.fw";
281 break; 303 break;
282 304 case EDGE_DOWNLOAD_FILE_80251:
283 case EDGE_DOWNLOAD_FILE_80251: 305 fw_name = "edgeport/boot2.fw";
284 fw_name = "edgeport/boot2.fw"; 306 break;
285 break; 307 default:
286 308 return;
287 default:
288 return;
289 } 309 }
290 310
291 response = request_ihex_firmware(&fw, fw_name, 311 response = request_ihex_firmware(&fw, fw_name,
@@ -301,7 +321,7 @@ static void update_edgeport_E2PROM (struct edgeport_serial *edge_serial)
301 BootMinorVersion = rec->data[1]; 321 BootMinorVersion = rec->data[1];
302 BootBuildNumber = (rec->data[2] << 8) | rec->data[3]; 322 BootBuildNumber = (rec->data[2] << 8) | rec->data[3];
303 323
304 // Check Boot Image Version 324 /* Check Boot Image Version */
305 BootCurVer = (edge_serial->boot_descriptor.MajorVersion << 24) + 325 BootCurVer = (edge_serial->boot_descriptor.MajorVersion << 24) +
306 (edge_serial->boot_descriptor.MinorVersion << 16) + 326 (edge_serial->boot_descriptor.MinorVersion << 16) +
307 le16_to_cpu(edge_serial->boot_descriptor.BuildNumber); 327 le16_to_cpu(edge_serial->boot_descriptor.BuildNumber);
@@ -353,29 +373,29 @@ static void update_edgeport_E2PROM (struct edgeport_serial *edge_serial)
353 * Get string descriptor from device * 373 * Get string descriptor from device *
354 * * 374 * *
355 ************************************************************************/ 375 ************************************************************************/
356static int get_string (struct usb_device *dev, int Id, char *string, int buflen) 376static int get_string(struct usb_device *dev, int Id, char *string, int buflen)
357{ 377{
358 struct usb_string_descriptor StringDesc; 378 struct usb_string_descriptor StringDesc;
359 struct usb_string_descriptor *pStringDesc; 379 struct usb_string_descriptor *pStringDesc;
360 380
361 dbg("%s - USB String ID = %d", __func__, Id ); 381 dbg("%s - USB String ID = %d", __func__, Id);
362 382
363 if (!usb_get_descriptor(dev, USB_DT_STRING, Id, &StringDesc, sizeof(StringDesc))) { 383 if (!usb_get_descriptor(dev, USB_DT_STRING, Id,
384 &StringDesc, sizeof(StringDesc)))
364 return 0; 385 return 0;
365 }
366
367 pStringDesc = kmalloc (StringDesc.bLength, GFP_KERNEL);
368 386
369 if (!pStringDesc) { 387 pStringDesc = kmalloc(StringDesc.bLength, GFP_KERNEL);
388 if (!pStringDesc)
370 return 0; 389 return 0;
371 }
372 390
373 if (!usb_get_descriptor(dev, USB_DT_STRING, Id, pStringDesc, StringDesc.bLength )) { 391 if (!usb_get_descriptor(dev, USB_DT_STRING, Id,
392 pStringDesc, StringDesc.bLength)) {
374 kfree(pStringDesc); 393 kfree(pStringDesc);
375 return 0; 394 return 0;
376 } 395 }
377 396
378 unicode_to_ascii(string, buflen, pStringDesc->wData, pStringDesc->bLength/2); 397 unicode_to_ascii(string, buflen,
398 pStringDesc->wData, pStringDesc->bLength/2);
379 399
380 kfree(pStringDesc); 400 kfree(pStringDesc);
381 dbg("%s - USB String %s", __func__, string); 401 dbg("%s - USB String %s", __func__, string);
@@ -389,24 +409,24 @@ static int get_string (struct usb_device *dev, int Id, char *string, int buflen)
389 * Get string descriptor from device 409 * Get string descriptor from device
390 * 410 *
391 ************************************************************************/ 411 ************************************************************************/
392static int get_string_desc (struct usb_device *dev, int Id, struct usb_string_descriptor **pRetDesc) 412static int get_string_desc(struct usb_device *dev, int Id,
413 struct usb_string_descriptor **pRetDesc)
393{ 414{
394 struct usb_string_descriptor StringDesc; 415 struct usb_string_descriptor StringDesc;
395 struct usb_string_descriptor *pStringDesc; 416 struct usb_string_descriptor *pStringDesc;
396 417
397 dbg("%s - USB String ID = %d", __func__, Id ); 418 dbg("%s - USB String ID = %d", __func__, Id);
398 419
399 if (!usb_get_descriptor(dev, USB_DT_STRING, Id, &StringDesc, sizeof(StringDesc))) { 420 if (!usb_get_descriptor(dev, USB_DT_STRING, Id, &StringDesc,
421 sizeof(StringDesc)))
400 return 0; 422 return 0;
401 }
402
403 pStringDesc = kmalloc (StringDesc.bLength, GFP_KERNEL);
404 423
405 if (!pStringDesc) { 424 pStringDesc = kmalloc(StringDesc.bLength, GFP_KERNEL);
425 if (!pStringDesc)
406 return -1; 426 return -1;
407 }
408 427
409 if (!usb_get_descriptor(dev, USB_DT_STRING, Id, pStringDesc, StringDesc.bLength )) { 428 if (!usb_get_descriptor(dev, USB_DT_STRING, Id, pStringDesc,
429 StringDesc.bLength)) {
410 kfree(pStringDesc); 430 kfree(pStringDesc);
411 return -1; 431 return -1;
412 } 432 }
@@ -418,25 +438,30 @@ static int get_string_desc (struct usb_device *dev, int Id, struct usb_string_de
418 438
419static void dump_product_info(struct edgeport_product_info *product_info) 439static void dump_product_info(struct edgeport_product_info *product_info)
420{ 440{
421 // Dump Product Info structure 441 /* Dump Product Info structure */
422 dbg("**Product Information:"); 442 dbg("**Product Information:");
423 dbg(" ProductId %x", product_info->ProductId ); 443 dbg(" ProductId %x", product_info->ProductId);
424 dbg(" NumPorts %d", product_info->NumPorts ); 444 dbg(" NumPorts %d", product_info->NumPorts);
425 dbg(" ProdInfoVer %d", product_info->ProdInfoVer ); 445 dbg(" ProdInfoVer %d", product_info->ProdInfoVer);
426 dbg(" IsServer %d", product_info->IsServer); 446 dbg(" IsServer %d", product_info->IsServer);
427 dbg(" IsRS232 %d", product_info->IsRS232 ); 447 dbg(" IsRS232 %d", product_info->IsRS232);
428 dbg(" IsRS422 %d", product_info->IsRS422 ); 448 dbg(" IsRS422 %d", product_info->IsRS422);
429 dbg(" IsRS485 %d", product_info->IsRS485 ); 449 dbg(" IsRS485 %d", product_info->IsRS485);
430 dbg(" RomSize %d", product_info->RomSize ); 450 dbg(" RomSize %d", product_info->RomSize);
431 dbg(" RamSize %d", product_info->RamSize ); 451 dbg(" RamSize %d", product_info->RamSize);
432 dbg(" CpuRev %x", product_info->CpuRev ); 452 dbg(" CpuRev %x", product_info->CpuRev);
433 dbg(" BoardRev %x", product_info->BoardRev); 453 dbg(" BoardRev %x", product_info->BoardRev);
434 dbg(" BootMajorVersion %d.%d.%d", product_info->BootMajorVersion, 454 dbg(" BootMajorVersion %d.%d.%d", product_info->BootMajorVersion,
435 product_info->BootMinorVersion, 455 product_info->BootMinorVersion,
436 le16_to_cpu(product_info->BootBuildNumber)); 456 le16_to_cpu(product_info->BootBuildNumber));
437 dbg(" ManufactureDescDate %d/%d/%d", product_info->ManufactureDescDate[0], 457 dbg(" FirmwareMajorVersion %d.%d.%d",
438 product_info->ManufactureDescDate[1], 458 product_info->FirmwareMajorVersion,
439 product_info->ManufactureDescDate[2]+1900); 459 product_info->FirmwareMinorVersion,
460 le16_to_cpu(product_info->FirmwareBuildNumber));
461 dbg(" ManufactureDescDate %d/%d/%d",
462 product_info->ManufactureDescDate[0],
463 product_info->ManufactureDescDate[1],
464 product_info->ManufactureDescDate[2]+1900);
440 dbg(" iDownloadFile 0x%x", product_info->iDownloadFile); 465 dbg(" iDownloadFile 0x%x", product_info->iDownloadFile);
441 dbg(" EpicVer %d", product_info->EpicVer); 466 dbg(" EpicVer %d", product_info->EpicVer);
442} 467}
@@ -445,55 +470,60 @@ static void get_product_info(struct edgeport_serial *edge_serial)
445{ 470{
446 struct edgeport_product_info *product_info = &edge_serial->product_info; 471 struct edgeport_product_info *product_info = &edge_serial->product_info;
447 472
448 memset (product_info, 0, sizeof(struct edgeport_product_info)); 473 memset(product_info, 0, sizeof(struct edgeport_product_info));
449 474
450 product_info->ProductId = (__u16)(le16_to_cpu(edge_serial->serial->dev->descriptor.idProduct) & ~ION_DEVICE_ID_80251_NETCHIP); 475 product_info->ProductId = (__u16)(le16_to_cpu(edge_serial->serial->dev->descriptor.idProduct) & ~ION_DEVICE_ID_80251_NETCHIP);
451 product_info->NumPorts = edge_serial->manuf_descriptor.NumPorts; 476 product_info->NumPorts = edge_serial->manuf_descriptor.NumPorts;
452 product_info->ProdInfoVer = 0; 477 product_info->ProdInfoVer = 0;
453 478
454 product_info->RomSize = edge_serial->manuf_descriptor.RomSize; 479 product_info->RomSize = edge_serial->manuf_descriptor.RomSize;
455 product_info->RamSize = edge_serial->manuf_descriptor.RamSize; 480 product_info->RamSize = edge_serial->manuf_descriptor.RamSize;
456 product_info->CpuRev = edge_serial->manuf_descriptor.CpuRev; 481 product_info->CpuRev = edge_serial->manuf_descriptor.CpuRev;
457 product_info->BoardRev = edge_serial->manuf_descriptor.BoardRev; 482 product_info->BoardRev = edge_serial->manuf_descriptor.BoardRev;
458 483
459 product_info->BootMajorVersion = edge_serial->boot_descriptor.MajorVersion; 484 product_info->BootMajorVersion =
460 product_info->BootMinorVersion = edge_serial->boot_descriptor.MinorVersion; 485 edge_serial->boot_descriptor.MajorVersion;
461 product_info->BootBuildNumber = edge_serial->boot_descriptor.BuildNumber; 486 product_info->BootMinorVersion =
462 487 edge_serial->boot_descriptor.MinorVersion;
463 memcpy(product_info->ManufactureDescDate, edge_serial->manuf_descriptor.DescDate, sizeof(edge_serial->manuf_descriptor.DescDate)); 488 product_info->BootBuildNumber =
464 489 edge_serial->boot_descriptor.BuildNumber;
465 // check if this is 2nd generation hardware 490
466 if (le16_to_cpu(edge_serial->serial->dev->descriptor.idProduct) & ION_DEVICE_ID_80251_NETCHIP) { 491 memcpy(product_info->ManufactureDescDate,
467 product_info->iDownloadFile = EDGE_DOWNLOAD_FILE_80251; 492 edge_serial->manuf_descriptor.DescDate,
468 } else { 493 sizeof(edge_serial->manuf_descriptor.DescDate));
469 product_info->iDownloadFile = EDGE_DOWNLOAD_FILE_I930; 494
470 } 495 /* check if this is 2nd generation hardware */
471 496 if (le16_to_cpu(edge_serial->serial->dev->descriptor.idProduct)
472 // Determine Product type and set appropriate flags 497 & ION_DEVICE_ID_80251_NETCHIP)
498 product_info->iDownloadFile = EDGE_DOWNLOAD_FILE_80251;
499 else
500 product_info->iDownloadFile = EDGE_DOWNLOAD_FILE_I930;
501
502 /* Determine Product type and set appropriate flags */
473 switch (DEVICE_ID_FROM_USB_PRODUCT_ID(product_info->ProductId)) { 503 switch (DEVICE_ID_FROM_USB_PRODUCT_ID(product_info->ProductId)) {
474 case ION_DEVICE_ID_EDGEPORT_COMPATIBLE: 504 case ION_DEVICE_ID_EDGEPORT_COMPATIBLE:
475 case ION_DEVICE_ID_EDGEPORT_4T: 505 case ION_DEVICE_ID_EDGEPORT_4T:
476 case ION_DEVICE_ID_EDGEPORT_4: 506 case ION_DEVICE_ID_EDGEPORT_4:
477 case ION_DEVICE_ID_EDGEPORT_2: 507 case ION_DEVICE_ID_EDGEPORT_2:
478 case ION_DEVICE_ID_EDGEPORT_8_DUAL_CPU: 508 case ION_DEVICE_ID_EDGEPORT_8_DUAL_CPU:
479 case ION_DEVICE_ID_EDGEPORT_8: 509 case ION_DEVICE_ID_EDGEPORT_8:
480 case ION_DEVICE_ID_EDGEPORT_421: 510 case ION_DEVICE_ID_EDGEPORT_421:
481 case ION_DEVICE_ID_EDGEPORT_21: 511 case ION_DEVICE_ID_EDGEPORT_21:
482 case ION_DEVICE_ID_EDGEPORT_2_DIN: 512 case ION_DEVICE_ID_EDGEPORT_2_DIN:
483 case ION_DEVICE_ID_EDGEPORT_4_DIN: 513 case ION_DEVICE_ID_EDGEPORT_4_DIN:
484 case ION_DEVICE_ID_EDGEPORT_16_DUAL_CPU: 514 case ION_DEVICE_ID_EDGEPORT_16_DUAL_CPU:
485 product_info->IsRS232 = 1; 515 product_info->IsRS232 = 1;
486 break; 516 break;
487 517
488 case ION_DEVICE_ID_EDGEPORT_2I: // Edgeport/2 RS422/RS485 518 case ION_DEVICE_ID_EDGEPORT_2I: /* Edgeport/2 RS422/RS485 */
489 product_info->IsRS422 = 1; 519 product_info->IsRS422 = 1;
490 product_info->IsRS485 = 1; 520 product_info->IsRS485 = 1;
491 break; 521 break;
492 522
493 case ION_DEVICE_ID_EDGEPORT_8I: // Edgeport/4 RS422 523 case ION_DEVICE_ID_EDGEPORT_8I: /* Edgeport/4 RS422 */
494 case ION_DEVICE_ID_EDGEPORT_4I: // Edgeport/4 RS422 524 case ION_DEVICE_ID_EDGEPORT_4I: /* Edgeport/4 RS422 */
495 product_info->IsRS422 = 1; 525 product_info->IsRS422 = 1;
496 break; 526 break;
497 } 527 }
498 528
499 dump_product_info(product_info); 529 dump_product_info(product_info);
@@ -521,32 +551,32 @@ static int get_epic_descriptor(struct edgeport_serial *ep)
521 ep->is_epic = 1; 551 ep->is_epic = 1;
522 memset(product_info, 0, sizeof(struct edgeport_product_info)); 552 memset(product_info, 0, sizeof(struct edgeport_product_info));
523 553
524 product_info->NumPorts = epic->NumPorts; 554 product_info->NumPorts = epic->NumPorts;
525 product_info->ProdInfoVer = 0; 555 product_info->ProdInfoVer = 0;
526 product_info->FirmwareMajorVersion = epic->MajorVersion; 556 product_info->FirmwareMajorVersion = epic->MajorVersion;
527 product_info->FirmwareMinorVersion = epic->MinorVersion; 557 product_info->FirmwareMinorVersion = epic->MinorVersion;
528 product_info->FirmwareBuildNumber = epic->BuildNumber; 558 product_info->FirmwareBuildNumber = epic->BuildNumber;
529 product_info->iDownloadFile = epic->iDownloadFile; 559 product_info->iDownloadFile = epic->iDownloadFile;
530 product_info->EpicVer = epic->EpicVer; 560 product_info->EpicVer = epic->EpicVer;
531 product_info->Epic = epic->Supports; 561 product_info->Epic = epic->Supports;
532 product_info->ProductId = ION_DEVICE_ID_EDGEPORT_COMPATIBLE; 562 product_info->ProductId = ION_DEVICE_ID_EDGEPORT_COMPATIBLE;
533 dump_product_info(product_info); 563 dump_product_info(product_info);
534 564
535 bits = &ep->epic_descriptor.Supports; 565 bits = &ep->epic_descriptor.Supports;
536 dbg("**EPIC descriptor:"); 566 dbg("**EPIC descriptor:");
537 dbg(" VendEnableSuspend: %s", bits->VendEnableSuspend ? "TRUE": "FALSE"); 567 dbg(" VendEnableSuspend: %s", bits->VendEnableSuspend ? "TRUE": "FALSE");
538 dbg(" IOSPOpen : %s", bits->IOSPOpen ? "TRUE": "FALSE" ); 568 dbg(" IOSPOpen : %s", bits->IOSPOpen ? "TRUE": "FALSE");
539 dbg(" IOSPClose : %s", bits->IOSPClose ? "TRUE": "FALSE" ); 569 dbg(" IOSPClose : %s", bits->IOSPClose ? "TRUE": "FALSE");
540 dbg(" IOSPChase : %s", bits->IOSPChase ? "TRUE": "FALSE" ); 570 dbg(" IOSPChase : %s", bits->IOSPChase ? "TRUE": "FALSE");
541 dbg(" IOSPSetRxFlow : %s", bits->IOSPSetRxFlow ? "TRUE": "FALSE" ); 571 dbg(" IOSPSetRxFlow : %s", bits->IOSPSetRxFlow ? "TRUE": "FALSE");
542 dbg(" IOSPSetTxFlow : %s", bits->IOSPSetTxFlow ? "TRUE": "FALSE" ); 572 dbg(" IOSPSetTxFlow : %s", bits->IOSPSetTxFlow ? "TRUE": "FALSE");
543 dbg(" IOSPSetXChar : %s", bits->IOSPSetXChar ? "TRUE": "FALSE" ); 573 dbg(" IOSPSetXChar : %s", bits->IOSPSetXChar ? "TRUE": "FALSE");
544 dbg(" IOSPRxCheck : %s", bits->IOSPRxCheck ? "TRUE": "FALSE" ); 574 dbg(" IOSPRxCheck : %s", bits->IOSPRxCheck ? "TRUE": "FALSE");
545 dbg(" IOSPSetClrBreak : %s", bits->IOSPSetClrBreak ? "TRUE": "FALSE" ); 575 dbg(" IOSPSetClrBreak : %s", bits->IOSPSetClrBreak ? "TRUE": "FALSE");
546 dbg(" IOSPWriteMCR : %s", bits->IOSPWriteMCR ? "TRUE": "FALSE" ); 576 dbg(" IOSPWriteMCR : %s", bits->IOSPWriteMCR ? "TRUE": "FALSE");
547 dbg(" IOSPWriteLCR : %s", bits->IOSPWriteLCR ? "TRUE": "FALSE" ); 577 dbg(" IOSPWriteLCR : %s", bits->IOSPWriteLCR ? "TRUE": "FALSE");
548 dbg(" IOSPSetBaudRate : %s", bits->IOSPSetBaudRate ? "TRUE": "FALSE" ); 578 dbg(" IOSPSetBaudRate : %s", bits->IOSPSetBaudRate ? "TRUE": "FALSE");
549 dbg(" TrueEdgeport : %s", bits->TrueEdgeport ? "TRUE": "FALSE" ); 579 dbg(" TrueEdgeport : %s", bits->TrueEdgeport ? "TRUE": "FALSE");
550 } 580 }
551 581
552 return result; 582 return result;
@@ -562,10 +592,10 @@ static int get_epic_descriptor(struct edgeport_serial *ep)
562 592
563/***************************************************************************** 593/*****************************************************************************
564 * edge_interrupt_callback 594 * edge_interrupt_callback
565 * this is the callback function for when we have received data on the 595 * this is the callback function for when we have received data on the
566 * interrupt endpoint. 596 * interrupt endpoint.
567 *****************************************************************************/ 597 *****************************************************************************/
568static void edge_interrupt_callback (struct urb *urb) 598static void edge_interrupt_callback(struct urb *urb)
569{ 599{
570 struct edgeport_serial *edge_serial = urb->context; 600 struct edgeport_serial *edge_serial = urb->context;
571 struct edgeport_port *edge_port; 601 struct edgeport_port *edge_port;
@@ -590,17 +620,17 @@ static void edge_interrupt_callback (struct urb *urb)
590 case -ESHUTDOWN: 620 case -ESHUTDOWN:
591 /* this urb is terminated, clean up */ 621 /* this urb is terminated, clean up */
592 dbg("%s - urb shutting down with status: %d", 622 dbg("%s - urb shutting down with status: %d",
593 __func__, status); 623 __func__, status);
594 return; 624 return;
595 default: 625 default:
596 dbg("%s - nonzero urb status received: %d", 626 dbg("%s - nonzero urb status received: %d", __func__, status);
597 __func__, status);
598 goto exit; 627 goto exit;
599 } 628 }
600 629
601 // process this interrupt-read even if there are no ports open 630 /* process this interrupt-read even if there are no ports open */
602 if (length) { 631 if (length) {
603 usb_serial_debug_data(debug, &edge_serial->serial->dev->dev, __func__, length, data); 632 usb_serial_debug_data(debug, &edge_serial->serial->dev->dev,
633 __func__, length, data);
604 634
605 if (length > 1) { 635 if (length > 1) {
606 bytes_avail = data[0] | (data[1] << 8); 636 bytes_avail = data[0] | (data[1] << 8);
@@ -614,7 +644,8 @@ static void edge_interrupt_callback (struct urb *urb)
614 dbg("%s - posting a read", __func__); 644 dbg("%s - posting a read", __func__);
615 edge_serial->read_in_progress = true; 645 edge_serial->read_in_progress = true;
616 646
617 /* we have pending bytes on the bulk in pipe, send a request */ 647 /* we have pending bytes on the
648 bulk in pipe, send a request */
618 edge_serial->read_urb->dev = edge_serial->serial->dev; 649 edge_serial->read_urb->dev = edge_serial->serial->dev;
619 result = usb_submit_urb(edge_serial->read_urb, GFP_ATOMIC); 650 result = usb_submit_urb(edge_serial->read_urb, GFP_ATOMIC);
620 if (result) { 651 if (result) {
@@ -628,7 +659,8 @@ static void edge_interrupt_callback (struct urb *urb)
628 /* grab the txcredits for the ports if available */ 659 /* grab the txcredits for the ports if available */
629 position = 2; 660 position = 2;
630 portNumber = 0; 661 portNumber = 0;
631 while ((position < length) && (portNumber < edge_serial->serial->num_ports)) { 662 while ((position < length) &&
663 (portNumber < edge_serial->serial->num_ports)) {
632 txCredits = data[position] | (data[position+1] << 8); 664 txCredits = data[position] | (data[position+1] << 8);
633 if (txCredits) { 665 if (txCredits) {
634 port = edge_serial->serial->port[portNumber]; 666 port = edge_serial->serial->port[portNumber];
@@ -637,14 +669,19 @@ static void edge_interrupt_callback (struct urb *urb)
637 spin_lock(&edge_port->ep_lock); 669 spin_lock(&edge_port->ep_lock);
638 edge_port->txCredits += txCredits; 670 edge_port->txCredits += txCredits;
639 spin_unlock(&edge_port->ep_lock); 671 spin_unlock(&edge_port->ep_lock);
640 dbg("%s - txcredits for port%d = %d", __func__, portNumber, edge_port->txCredits); 672 dbg("%s - txcredits for port%d = %d",
673 __func__, portNumber,
674 edge_port->txCredits);
641 675
642 /* tell the tty driver that something has changed */ 676 /* tell the tty driver that something
677 has changed */
643 if (edge_port->port->port.tty) 678 if (edge_port->port->port.tty)
644 tty_wakeup(edge_port->port->port.tty); 679 tty_wakeup(edge_port->port->port.tty);
645 680
646 // Since we have more credit, check if more data can be sent 681 /* Since we have more credit, check
647 send_more_port_data(edge_serial, edge_port); 682 if more data can be sent */
683 send_more_port_data(edge_serial,
684 edge_port);
648 } 685 }
649 } 686 }
650 position += 2; 687 position += 2;
@@ -653,19 +690,20 @@ static void edge_interrupt_callback (struct urb *urb)
653 } 690 }
654 691
655exit: 692exit:
656 result = usb_submit_urb (urb, GFP_ATOMIC); 693 result = usb_submit_urb(urb, GFP_ATOMIC);
657 if (result) { 694 if (result)
658 dev_err(&urb->dev->dev, "%s - Error %d submitting control urb\n", __func__, result); 695 dev_err(&urb->dev->dev,
659 } 696 "%s - Error %d submitting control urb\n",
697 __func__, result);
660} 698}
661 699
662 700
663/***************************************************************************** 701/*****************************************************************************
664 * edge_bulk_in_callback 702 * edge_bulk_in_callback
665 * this is the callback function for when we have received data on the 703 * this is the callback function for when we have received data on the
666 * bulk in endpoint. 704 * bulk in endpoint.
667 *****************************************************************************/ 705 *****************************************************************************/
668static void edge_bulk_in_callback (struct urb *urb) 706static void edge_bulk_in_callback(struct urb *urb)
669{ 707{
670 struct edgeport_serial *edge_serial = urb->context; 708 struct edgeport_serial *edge_serial = urb->context;
671 unsigned char *data = urb->transfer_buffer; 709 unsigned char *data = urb->transfer_buffer;
@@ -690,16 +728,18 @@ static void edge_bulk_in_callback (struct urb *urb)
690 728
691 raw_data_length = urb->actual_length; 729 raw_data_length = urb->actual_length;
692 730
693 usb_serial_debug_data(debug, &edge_serial->serial->dev->dev, __func__, raw_data_length, data); 731 usb_serial_debug_data(debug, &edge_serial->serial->dev->dev,
732 __func__, raw_data_length, data);
694 733
695 spin_lock(&edge_serial->es_lock); 734 spin_lock(&edge_serial->es_lock);
696 735
697 /* decrement our rxBytes available by the number that we just got */ 736 /* decrement our rxBytes available by the number that we just got */
698 edge_serial->rxBytesAvail -= raw_data_length; 737 edge_serial->rxBytesAvail -= raw_data_length;
699 738
700 dbg("%s - Received = %d, rxBytesAvail %d", __func__, raw_data_length, edge_serial->rxBytesAvail); 739 dbg("%s - Received = %d, rxBytesAvail %d", __func__,
740 raw_data_length, edge_serial->rxBytesAvail);
701 741
702 process_rcvd_data (edge_serial, data, urb->actual_length); 742 process_rcvd_data(edge_serial, data, urb->actual_length);
703 743
704 /* check to see if there's any more data for us to read */ 744 /* check to see if there's any more data for us to read */
705 if (edge_serial->rxBytesAvail > 0) { 745 if (edge_serial->rxBytesAvail > 0) {
@@ -722,10 +762,10 @@ static void edge_bulk_in_callback (struct urb *urb)
722 762
723/***************************************************************************** 763/*****************************************************************************
724 * edge_bulk_out_data_callback 764 * edge_bulk_out_data_callback
725 * this is the callback function for when we have finished sending serial data 765 * this is the callback function for when we have finished sending
726 * on the bulk out endpoint. 766 * serial data on the bulk out endpoint.
727 *****************************************************************************/ 767 *****************************************************************************/
728static void edge_bulk_out_data_callback (struct urb *urb) 768static void edge_bulk_out_data_callback(struct urb *urb)
729{ 769{
730 struct edgeport_port *edge_port = urb->context; 770 struct edgeport_port *edge_port = urb->context;
731 struct tty_struct *tty; 771 struct tty_struct *tty;
@@ -741,24 +781,26 @@ static void edge_bulk_out_data_callback (struct urb *urb)
741 tty = edge_port->port->port.tty; 781 tty = edge_port->port->port.tty;
742 782
743 if (tty && edge_port->open) { 783 if (tty && edge_port->open) {
744 /* let the tty driver wakeup if it has a special write_wakeup function */ 784 /* let the tty driver wakeup if it has a special
785 write_wakeup function */
745 tty_wakeup(tty); 786 tty_wakeup(tty);
746 } 787 }
747 788
748 // Release the Write URB 789 /* Release the Write URB */
749 edge_port->write_in_progress = false; 790 edge_port->write_in_progress = false;
750 791
751 // Check if more data needs to be sent 792 /* Check if more data needs to be sent */
752 send_more_port_data((struct edgeport_serial *)(usb_get_serial_data(edge_port->port->serial)), edge_port); 793 send_more_port_data((struct edgeport_serial *)
794 (usb_get_serial_data(edge_port->port->serial)), edge_port);
753} 795}
754 796
755 797
756/***************************************************************************** 798/*****************************************************************************
757 * BulkOutCmdCallback 799 * BulkOutCmdCallback
758 * this is the callback function for when we have finished sending a command 800 * this is the callback function for when we have finished sending a
759 * on the bulk out endpoint. 801 * command on the bulk out endpoint.
760 *****************************************************************************/ 802 *****************************************************************************/
761static void edge_bulk_out_cmd_callback (struct urb *urb) 803static void edge_bulk_out_cmd_callback(struct urb *urb)
762{ 804{
763 struct edgeport_port *edge_port = urb->context; 805 struct edgeport_port *edge_port = urb->context;
764 struct tty_struct *tty; 806 struct tty_struct *tty;
@@ -767,17 +809,19 @@ static void edge_bulk_out_cmd_callback (struct urb *urb)
767 dbg("%s", __func__); 809 dbg("%s", __func__);
768 810
769 atomic_dec(&CmdUrbs); 811 atomic_dec(&CmdUrbs);
770 dbg("%s - FREE URB %p (outstanding %d)", __func__, urb, atomic_read(&CmdUrbs)); 812 dbg("%s - FREE URB %p (outstanding %d)", __func__,
813 urb, atomic_read(&CmdUrbs));
771 814
772 815
773 /* clean up the transfer buffer */ 816 /* clean up the transfer buffer */
774 kfree(urb->transfer_buffer); 817 kfree(urb->transfer_buffer);
775 818
776 /* Free the command urb */ 819 /* Free the command urb */
777 usb_free_urb (urb); 820 usb_free_urb(urb);
778 821
779 if (status) { 822 if (status) {
780 dbg("%s - nonzero write bulk status received: %d", __func__, status); 823 dbg("%s - nonzero write bulk status received: %d",
824 __func__, status);
781 return; 825 return;
782 } 826 }
783 827
@@ -805,7 +849,7 @@ static void edge_bulk_out_cmd_callback (struct urb *urb)
805 * Otherwise we return a negative error number. 849 * Otherwise we return a negative error number.
806 *****************************************************************************/ 850 *****************************************************************************/
807static int edge_open(struct tty_struct *tty, 851static int edge_open(struct tty_struct *tty,
808 struct usb_serial_port *port, struct file * filp) 852 struct usb_serial_port *port, struct file *filp)
809{ 853{
810 struct edgeport_port *edge_port = usb_get_serial_port_data(port); 854 struct edgeport_port *edge_port = usb_get_serial_port_data(port);
811 struct usb_serial *serial; 855 struct usb_serial *serial;
@@ -820,51 +864,59 @@ static int edge_open(struct tty_struct *tty,
820 if (tty) 864 if (tty)
821 tty->low_latency = low_latency; 865 tty->low_latency = low_latency;
822 866
823 /* see if we've set up our endpoint info yet (can't set it up in edge_startup 867 /* see if we've set up our endpoint info yet (can't set it up
824 as the structures were not set up at that time.) */ 868 in edge_startup as the structures were not set up at that time.) */
825 serial = port->serial; 869 serial = port->serial;
826 edge_serial = usb_get_serial_data(serial); 870 edge_serial = usb_get_serial_data(serial);
827 if (edge_serial == NULL) 871 if (edge_serial == NULL)
828 return -ENODEV; 872 return -ENODEV;
829 if (edge_serial->interrupt_in_buffer == NULL) { 873 if (edge_serial->interrupt_in_buffer == NULL) {
830 struct usb_serial_port *port0 = serial->port[0]; 874 struct usb_serial_port *port0 = serial->port[0];
831 875
832 /* not set up yet, so do it now */ 876 /* not set up yet, so do it now */
833 edge_serial->interrupt_in_buffer = port0->interrupt_in_buffer; 877 edge_serial->interrupt_in_buffer =
834 edge_serial->interrupt_in_endpoint = port0->interrupt_in_endpointAddress; 878 port0->interrupt_in_buffer;
879 edge_serial->interrupt_in_endpoint =
880 port0->interrupt_in_endpointAddress;
835 edge_serial->interrupt_read_urb = port0->interrupt_in_urb; 881 edge_serial->interrupt_read_urb = port0->interrupt_in_urb;
836 edge_serial->bulk_in_buffer = port0->bulk_in_buffer; 882 edge_serial->bulk_in_buffer = port0->bulk_in_buffer;
837 edge_serial->bulk_in_endpoint = port0->bulk_in_endpointAddress; 883 edge_serial->bulk_in_endpoint =
884 port0->bulk_in_endpointAddress;
838 edge_serial->read_urb = port0->read_urb; 885 edge_serial->read_urb = port0->read_urb;
839 edge_serial->bulk_out_endpoint = port0->bulk_out_endpointAddress; 886 edge_serial->bulk_out_endpoint =
840 887 port0->bulk_out_endpointAddress;
888
841 /* set up our interrupt urb */ 889 /* set up our interrupt urb */
842 usb_fill_int_urb(edge_serial->interrupt_read_urb, 890 usb_fill_int_urb(edge_serial->interrupt_read_urb,
843 serial->dev, 891 serial->dev,
844 usb_rcvintpipe(serial->dev, 892 usb_rcvintpipe(serial->dev,
845 port0->interrupt_in_endpointAddress), 893 port0->interrupt_in_endpointAddress),
846 port0->interrupt_in_buffer, 894 port0->interrupt_in_buffer,
847 edge_serial->interrupt_read_urb->transfer_buffer_length, 895 edge_serial->interrupt_read_urb->transfer_buffer_length,
848 edge_interrupt_callback, edge_serial, 896 edge_interrupt_callback, edge_serial,
849 edge_serial->interrupt_read_urb->interval); 897 edge_serial->interrupt_read_urb->interval);
850 898
851 /* set up our bulk in urb */ 899 /* set up our bulk in urb */
852 usb_fill_bulk_urb(edge_serial->read_urb, serial->dev, 900 usb_fill_bulk_urb(edge_serial->read_urb, serial->dev,
853 usb_rcvbulkpipe(serial->dev, 901 usb_rcvbulkpipe(serial->dev,
854 port0->bulk_in_endpointAddress), 902 port0->bulk_in_endpointAddress),
855 port0->bulk_in_buffer, 903 port0->bulk_in_buffer,
856 edge_serial->read_urb->transfer_buffer_length, 904 edge_serial->read_urb->transfer_buffer_length,
857 edge_bulk_in_callback, edge_serial); 905 edge_bulk_in_callback, edge_serial);
858 edge_serial->read_in_progress = false; 906 edge_serial->read_in_progress = false;
859 907
860 /* start interrupt read for this edgeport 908 /* start interrupt read for this edgeport
861 * this interrupt will continue as long as the edgeport is connected */ 909 * this interrupt will continue as long
862 response = usb_submit_urb (edge_serial->interrupt_read_urb, GFP_KERNEL); 910 * as the edgeport is connected */
911 response = usb_submit_urb(edge_serial->interrupt_read_urb,
912 GFP_KERNEL);
863 if (response) { 913 if (response) {
864 dev_err(&port->dev, "%s - Error %d submitting control urb\n", __func__, response); 914 dev_err(&port->dev,
915 "%s - Error %d submitting control urb\n",
916 __func__, response);
865 } 917 }
866 } 918 }
867 919
868 /* initialize our wait queues */ 920 /* initialize our wait queues */
869 init_waitqueue_head(&edge_port->wait_open); 921 init_waitqueue_head(&edge_port->wait_open);
870 init_waitqueue_head(&edge_port->wait_chase); 922 init_waitqueue_head(&edge_port->wait_chase);
@@ -872,26 +924,29 @@ static int edge_open(struct tty_struct *tty,
872 init_waitqueue_head(&edge_port->wait_command); 924 init_waitqueue_head(&edge_port->wait_command);
873 925
874 /* initialize our icount structure */ 926 /* initialize our icount structure */
875 memset (&(edge_port->icount), 0x00, sizeof(edge_port->icount)); 927 memset(&(edge_port->icount), 0x00, sizeof(edge_port->icount));
876 928
877 /* initialize our port settings */ 929 /* initialize our port settings */
878 edge_port->txCredits = 0; /* Can't send any data yet */ 930 edge_port->txCredits = 0; /* Can't send any data yet */
879 edge_port->shadowMCR = MCR_MASTER_IE; /* Must always set this bit to enable ints! */ 931 /* Must always set this bit to enable ints! */
932 edge_port->shadowMCR = MCR_MASTER_IE;
880 edge_port->chaseResponsePending = false; 933 edge_port->chaseResponsePending = false;
881 934
882 /* send a open port command */ 935 /* send a open port command */
883 edge_port->openPending = true; 936 edge_port->openPending = true;
884 edge_port->open = false; 937 edge_port->open = false;
885 response = send_iosp_ext_cmd (edge_port, IOSP_CMD_OPEN_PORT, 0); 938 response = send_iosp_ext_cmd(edge_port, IOSP_CMD_OPEN_PORT, 0);
886 939
887 if (response < 0) { 940 if (response < 0) {
888 dev_err(&port->dev, "%s - error sending open port command\n", __func__); 941 dev_err(&port->dev, "%s - error sending open port command\n",
942 __func__);
889 edge_port->openPending = false; 943 edge_port->openPending = false;
890 return -ENODEV; 944 return -ENODEV;
891 } 945 }
892 946
893 /* now wait for the port to be completely opened */ 947 /* now wait for the port to be completely opened */
894 wait_event_timeout(edge_port->wait_open, !edge_port->openPending, OPEN_TIMEOUT); 948 wait_event_timeout(edge_port->wait_open, !edge_port->openPending,
949 OPEN_TIMEOUT);
895 950
896 if (!edge_port->open) { 951 if (!edge_port->open) {
897 /* open timed out */ 952 /* open timed out */
@@ -905,25 +960,26 @@ static int edge_open(struct tty_struct *tty,
905 edge_port->txfifo.tail = 0; 960 edge_port->txfifo.tail = 0;
906 edge_port->txfifo.count = 0; 961 edge_port->txfifo.count = 0;
907 edge_port->txfifo.size = edge_port->maxTxCredits; 962 edge_port->txfifo.size = edge_port->maxTxCredits;
908 edge_port->txfifo.fifo = kmalloc (edge_port->maxTxCredits, GFP_KERNEL); 963 edge_port->txfifo.fifo = kmalloc(edge_port->maxTxCredits, GFP_KERNEL);
909 964
910 if (!edge_port->txfifo.fifo) { 965 if (!edge_port->txfifo.fifo) {
911 dbg("%s - no memory", __func__); 966 dbg("%s - no memory", __func__);
912 edge_close (tty, port, filp); 967 edge_close(tty, port, filp);
913 return -ENOMEM; 968 return -ENOMEM;
914 } 969 }
915 970
916 /* Allocate a URB for the write */ 971 /* Allocate a URB for the write */
917 edge_port->write_urb = usb_alloc_urb (0, GFP_KERNEL); 972 edge_port->write_urb = usb_alloc_urb(0, GFP_KERNEL);
918 edge_port->write_in_progress = false; 973 edge_port->write_in_progress = false;
919 974
920 if (!edge_port->write_urb) { 975 if (!edge_port->write_urb) {
921 dbg("%s - no memory", __func__); 976 dbg("%s - no memory", __func__);
922 edge_close (tty, port, filp); 977 edge_close(tty, port, filp);
923 return -ENOMEM; 978 return -ENOMEM;
924 } 979 }
925 980
926 dbg("%s(%d) - Initialize TX fifo to %d bytes", __func__, port->number, edge_port->maxTxCredits); 981 dbg("%s(%d) - Initialize TX fifo to %d bytes",
982 __func__, port->number, edge_port->maxTxCredits);
927 983
928 dbg("%s exited", __func__); 984 dbg("%s exited", __func__);
929 985
@@ -949,27 +1005,28 @@ static void block_until_chase_response(struct edgeport_port *edge_port)
949 int loop = 10; 1005 int loop = 10;
950 1006
951 while (1) { 1007 while (1) {
952 // Save Last credits 1008 /* Save Last credits */
953 lastCredits = edge_port->txCredits; 1009 lastCredits = edge_port->txCredits;
954 1010
955 // Did we get our Chase response 1011 /* Did we get our Chase response */
956 if (!edge_port->chaseResponsePending) { 1012 if (!edge_port->chaseResponsePending) {
957 dbg("%s - Got Chase Response", __func__); 1013 dbg("%s - Got Chase Response", __func__);
958 1014
959 // did we get all of our credit back? 1015 /* did we get all of our credit back? */
960 if (edge_port->txCredits == edge_port->maxTxCredits ) { 1016 if (edge_port->txCredits == edge_port->maxTxCredits) {
961 dbg("%s - Got all credits", __func__); 1017 dbg("%s - Got all credits", __func__);
962 return; 1018 return;
963 } 1019 }
964 } 1020 }
965 1021
966 // Block the thread for a while 1022 /* Block the thread for a while */
967 prepare_to_wait(&edge_port->wait_chase, &wait, TASK_UNINTERRUPTIBLE); 1023 prepare_to_wait(&edge_port->wait_chase, &wait,
1024 TASK_UNINTERRUPTIBLE);
968 schedule_timeout(timeout); 1025 schedule_timeout(timeout);
969 finish_wait(&edge_port->wait_chase, &wait); 1026 finish_wait(&edge_port->wait_chase, &wait);
970 1027
971 if (lastCredits == edge_port->txCredits) { 1028 if (lastCredits == edge_port->txCredits) {
972 // No activity.. count down. 1029 /* No activity.. count down. */
973 loop--; 1030 loop--;
974 if (loop == 0) { 1031 if (loop == 0) {
975 edge_port->chaseResponsePending = false; 1032 edge_port->chaseResponsePending = false;
@@ -977,8 +1034,9 @@ static void block_until_chase_response(struct edgeport_port *edge_port)
977 return; 1034 return;
978 } 1035 }
979 } else { 1036 } else {
980 // Reset timeout value back to 10 seconds 1037 /* Reset timeout value back to 10 seconds */
981 dbg("%s - Last %d, Current %d", __func__, lastCredits, edge_port->txCredits); 1038 dbg("%s - Last %d, Current %d", __func__,
1039 lastCredits, edge_port->txCredits);
982 loop = 10; 1040 loop = 10;
983 } 1041 }
984 } 1042 }
@@ -995,7 +1053,7 @@ static void block_until_chase_response(struct edgeport_port *edge_port)
995 * 3. A timeout of 3 seconds without activity has expired 1053 * 3. A timeout of 3 seconds without activity has expired
996 * 1054 *
997 ************************************************************************/ 1055 ************************************************************************/
998static void block_until_tx_empty (struct edgeport_port *edge_port) 1056static void block_until_tx_empty(struct edgeport_port *edge_port)
999{ 1057{
1000 DEFINE_WAIT(wait); 1058 DEFINE_WAIT(wait);
1001 struct TxFifo *fifo = &edge_port->txfifo; 1059 struct TxFifo *fifo = &edge_port->txfifo;
@@ -1004,31 +1062,32 @@ static void block_until_tx_empty (struct edgeport_port *edge_port)
1004 int loop = 30; 1062 int loop = 30;
1005 1063
1006 while (1) { 1064 while (1) {
1007 // Save Last count 1065 /* Save Last count */
1008 lastCount = fifo->count; 1066 lastCount = fifo->count;
1009 1067
1010 // Is the Edgeport Buffer empty? 1068 /* Is the Edgeport Buffer empty? */
1011 if (lastCount == 0) { 1069 if (lastCount == 0) {
1012 dbg("%s - TX Buffer Empty", __func__); 1070 dbg("%s - TX Buffer Empty", __func__);
1013 return; 1071 return;
1014 } 1072 }
1015 1073
1016 // Block the thread for a while 1074 /* Block the thread for a while */
1017 prepare_to_wait (&edge_port->wait_chase, &wait, TASK_UNINTERRUPTIBLE); 1075 prepare_to_wait(&edge_port->wait_chase, &wait,
1076 TASK_UNINTERRUPTIBLE);
1018 schedule_timeout(timeout); 1077 schedule_timeout(timeout);
1019 finish_wait(&edge_port->wait_chase, &wait); 1078 finish_wait(&edge_port->wait_chase, &wait);
1020 1079
1021 dbg("%s wait", __func__); 1080 dbg("%s wait", __func__);
1022 1081
1023 if (lastCount == fifo->count) { 1082 if (lastCount == fifo->count) {
1024 // No activity.. count down. 1083 /* No activity.. count down. */
1025 loop--; 1084 loop--;
1026 if (loop == 0) { 1085 if (loop == 0) {
1027 dbg("%s - TIMEOUT", __func__); 1086 dbg("%s - TIMEOUT", __func__);
1028 return; 1087 return;
1029 } 1088 }
1030 } else { 1089 } else {
1031 // Reset timeout value back to seconds 1090 /* Reset timeout value back to seconds */
1032 loop = 30; 1091 loop = 30;
1033 } 1092 }
1034 } 1093 }
@@ -1040,20 +1099,20 @@ static void block_until_tx_empty (struct edgeport_port *edge_port)
1040 * this function is called by the tty driver when a port is closed 1099 * this function is called by the tty driver when a port is closed
1041 *****************************************************************************/ 1100 *****************************************************************************/
1042static void edge_close(struct tty_struct *tty, 1101static void edge_close(struct tty_struct *tty,
1043 struct usb_serial_port *port, struct file * filp) 1102 struct usb_serial_port *port, struct file *filp)
1044{ 1103{
1045 struct edgeport_serial *edge_serial; 1104 struct edgeport_serial *edge_serial;
1046 struct edgeport_port *edge_port; 1105 struct edgeport_port *edge_port;
1047 int status; 1106 int status;
1048 1107
1049 dbg("%s - port %d", __func__, port->number); 1108 dbg("%s - port %d", __func__, port->number);
1050 1109
1051 edge_serial = usb_get_serial_data(port->serial); 1110 edge_serial = usb_get_serial_data(port->serial);
1052 edge_port = usb_get_serial_port_data(port); 1111 edge_port = usb_get_serial_port_data(port);
1053 if ((edge_serial == NULL) || (edge_port == NULL)) 1112 if (edge_serial == NULL || edge_port == NULL)
1054 return; 1113 return;
1055 1114
1056 // block until tx is empty 1115 /* block until tx is empty */
1057 block_until_tx_empty(edge_port); 1116 block_until_tx_empty(edge_port);
1058 1117
1059 edge_port->closePending = true; 1118 edge_port->closePending = true;
@@ -1065,13 +1124,12 @@ static void edge_close(struct tty_struct *tty,
1065 edge_port->chaseResponsePending = true; 1124 edge_port->chaseResponsePending = true;
1066 1125
1067 dbg("%s - Sending IOSP_CMD_CHASE_PORT", __func__); 1126 dbg("%s - Sending IOSP_CMD_CHASE_PORT", __func__);
1068 status = send_iosp_ext_cmd (edge_port, IOSP_CMD_CHASE_PORT, 0); 1127 status = send_iosp_ext_cmd(edge_port, IOSP_CMD_CHASE_PORT, 0);
1069 if (status == 0) { 1128 if (status == 0)
1070 // block until chase finished 1129 /* block until chase finished */
1071 block_until_chase_response(edge_port); 1130 block_until_chase_response(edge_port);
1072 } else { 1131 else
1073 edge_port->chaseResponsePending = false; 1132 edge_port->chaseResponsePending = false;
1074 }
1075 } 1133 }
1076 1134
1077 if ((!edge_serial->is_epic) || 1135 if ((!edge_serial->is_epic) ||
@@ -1079,10 +1137,10 @@ static void edge_close(struct tty_struct *tty,
1079 (edge_serial->epic_descriptor.Supports.IOSPClose))) { 1137 (edge_serial->epic_descriptor.Supports.IOSPClose))) {
1080 /* close the port */ 1138 /* close the port */
1081 dbg("%s - Sending IOSP_CMD_CLOSE_PORT", __func__); 1139 dbg("%s - Sending IOSP_CMD_CLOSE_PORT", __func__);
1082 send_iosp_ext_cmd (edge_port, IOSP_CMD_CLOSE_PORT, 0); 1140 send_iosp_ext_cmd(edge_port, IOSP_CMD_CLOSE_PORT, 0);
1083 } 1141 }
1084 1142
1085 //port->close = true; 1143 /* port->close = true; */
1086 edge_port->closePending = false; 1144 edge_port->closePending = false;
1087 edge_port->open = false; 1145 edge_port->open = false;
1088 edge_port->openPending = false; 1146 edge_port->openPending = false;
@@ -1090,7 +1148,8 @@ static void edge_close(struct tty_struct *tty,
1090 usb_kill_urb(edge_port->write_urb); 1148 usb_kill_urb(edge_port->write_urb);
1091 1149
1092 if (edge_port->write_urb) { 1150 if (edge_port->write_urb) {
1093 /* if this urb had a transfer buffer already (old transfer) free it */ 1151 /* if this urb had a transfer buffer already
1152 (old transfer) free it */
1094 kfree(edge_port->write_urb->transfer_buffer); 1153 kfree(edge_port->write_urb->transfer_buffer);
1095 usb_free_urb(edge_port->write_urb); 1154 usb_free_urb(edge_port->write_urb);
1096 edge_port->write_urb = NULL; 1155 edge_port->write_urb = NULL;
@@ -1099,14 +1158,14 @@ static void edge_close(struct tty_struct *tty,
1099 edge_port->txfifo.fifo = NULL; 1158 edge_port->txfifo.fifo = NULL;
1100 1159
1101 dbg("%s exited", __func__); 1160 dbg("%s exited", __func__);
1102} 1161}
1103 1162
1104/***************************************************************************** 1163/*****************************************************************************
1105 * SerialWrite 1164 * SerialWrite
1106 * this function is called by the tty driver when data should be written to 1165 * this function is called by the tty driver when data should be written
1107 * the port. 1166 * to the port.
1108 * If successful, we return the number of bytes written, otherwise we return 1167 * If successful, we return the number of bytes written, otherwise we
1109 * a negative error number. 1168 * return a negative error number.
1110 *****************************************************************************/ 1169 *****************************************************************************/
1111static int edge_write(struct tty_struct *tty, struct usb_serial_port *port, 1170static int edge_write(struct tty_struct *tty, struct usb_serial_port *port,
1112 const unsigned char *data, int count) 1171 const unsigned char *data, int count)
@@ -1124,66 +1183,76 @@ static int edge_write(struct tty_struct *tty, struct usb_serial_port *port,
1124 if (edge_port == NULL) 1183 if (edge_port == NULL)
1125 return -ENODEV; 1184 return -ENODEV;
1126 1185
1127 // get a pointer to the Tx fifo 1186 /* get a pointer to the Tx fifo */
1128 fifo = &edge_port->txfifo; 1187 fifo = &edge_port->txfifo;
1129 1188
1130 spin_lock_irqsave(&edge_port->ep_lock, flags); 1189 spin_lock_irqsave(&edge_port->ep_lock, flags);
1131 1190
1132 // calculate number of bytes to put in fifo 1191 /* calculate number of bytes to put in fifo */
1133 copySize = min ((unsigned int)count, (edge_port->txCredits - fifo->count)); 1192 copySize = min((unsigned int)count,
1193 (edge_port->txCredits - fifo->count));
1134 1194
1135 dbg("%s(%d) of %d byte(s) Fifo room %d -- will copy %d bytes", __func__, 1195 dbg("%s(%d) of %d byte(s) Fifo room %d -- will copy %d bytes",
1136 port->number, count, edge_port->txCredits - fifo->count, copySize); 1196 __func__, port->number, count,
1197 edge_port->txCredits - fifo->count, copySize);
1137 1198
1138 /* catch writes of 0 bytes which the tty driver likes to give us, and when txCredits is empty */ 1199 /* catch writes of 0 bytes which the tty driver likes to give us,
1200 and when txCredits is empty */
1139 if (copySize == 0) { 1201 if (copySize == 0) {
1140 dbg("%s - copySize = Zero", __func__); 1202 dbg("%s - copySize = Zero", __func__);
1141 goto finish_write; 1203 goto finish_write;
1142 } 1204 }
1143 1205
1144 // queue the data 1206 /* queue the data
1145 // since we can never overflow the buffer we do not have to check for full condition 1207 * since we can never overflow the buffer we do not have to check for a
1146 1208 * full condition
1147 // the copy is done is two parts -- first fill to the end of the buffer 1209 *
1148 // then copy the reset from the start of the buffer 1210 * the copy is done is two parts -- first fill to the end of the buffer
1149 1211 * then copy the reset from the start of the buffer
1212 */
1150 bytesleft = fifo->size - fifo->head; 1213 bytesleft = fifo->size - fifo->head;
1151 firsthalf = min (bytesleft, copySize); 1214 firsthalf = min(bytesleft, copySize);
1152 dbg("%s - copy %d bytes of %d into fifo ", __func__, firsthalf, bytesleft); 1215 dbg("%s - copy %d bytes of %d into fifo ", __func__,
1216 firsthalf, bytesleft);
1153 1217
1154 /* now copy our data */ 1218 /* now copy our data */
1155 memcpy(&fifo->fifo[fifo->head], data, firsthalf); 1219 memcpy(&fifo->fifo[fifo->head], data, firsthalf);
1156 usb_serial_debug_data(debug, &port->dev, __func__, firsthalf, &fifo->fifo[fifo->head]); 1220 usb_serial_debug_data(debug, &port->dev, __func__,
1221 firsthalf, &fifo->fifo[fifo->head]);
1157 1222
1158 // update the index and size 1223 /* update the index and size */
1159 fifo->head += firsthalf; 1224 fifo->head += firsthalf;
1160 fifo->count += firsthalf; 1225 fifo->count += firsthalf;
1161 1226
1162 // wrap the index 1227 /* wrap the index */
1163 if (fifo->head == fifo->size) { 1228 if (fifo->head == fifo->size)
1164 fifo->head = 0; 1229 fifo->head = 0;
1165 }
1166 1230
1167 secondhalf = copySize-firsthalf; 1231 secondhalf = copySize-firsthalf;
1168 1232
1169 if (secondhalf) { 1233 if (secondhalf) {
1170 dbg("%s - copy rest of data %d", __func__, secondhalf); 1234 dbg("%s - copy rest of data %d", __func__, secondhalf);
1171 memcpy(&fifo->fifo[fifo->head], &data[firsthalf], secondhalf); 1235 memcpy(&fifo->fifo[fifo->head], &data[firsthalf], secondhalf);
1172 usb_serial_debug_data(debug, &port->dev, __func__, secondhalf, &fifo->fifo[fifo->head]); 1236 usb_serial_debug_data(debug, &port->dev, __func__,
1173 // update the index and size 1237 secondhalf, &fifo->fifo[fifo->head]);
1238 /* update the index and size */
1174 fifo->count += secondhalf; 1239 fifo->count += secondhalf;
1175 fifo->head += secondhalf; 1240 fifo->head += secondhalf;
1176 // No need to check for wrap since we can not get to end of fifo in this part 1241 /* No need to check for wrap since we can not get to end of
1242 * the fifo in this part
1243 */
1177 } 1244 }
1178 1245
1179finish_write: 1246finish_write:
1180 spin_unlock_irqrestore(&edge_port->ep_lock, flags); 1247 spin_unlock_irqrestore(&edge_port->ep_lock, flags);
1181 1248
1182 send_more_port_data((struct edgeport_serial *)usb_get_serial_data(port->serial), edge_port); 1249 send_more_port_data((struct edgeport_serial *)
1250 usb_get_serial_data(port->serial), edge_port);
1183 1251
1184 dbg("%s wrote %d byte(s) TxCredits %d, Fifo %d", __func__, copySize, edge_port->txCredits, fifo->count); 1252 dbg("%s wrote %d byte(s) TxCredits %d, Fifo %d", __func__,
1253 copySize, edge_port->txCredits, fifo->count);
1185 1254
1186 return copySize; 1255 return copySize;
1187} 1256}
1188 1257
1189 1258
@@ -1200,7 +1269,8 @@ finish_write:
1200 * can transmit more. 1269 * can transmit more.
1201 * 1270 *
1202 ************************************************************************/ 1271 ************************************************************************/
1203static void send_more_port_data(struct edgeport_serial *edge_serial, struct edgeport_port *edge_port) 1272static void send_more_port_data(struct edgeport_serial *edge_serial,
1273 struct edgeport_port *edge_port)
1204{ 1274{
1205 struct TxFifo *fifo = &edge_port->txfifo; 1275 struct TxFifo *fifo = &edge_port->txfifo;
1206 struct urb *urb; 1276 struct urb *urb;
@@ -1219,67 +1289,78 @@ static void send_more_port_data(struct edgeport_serial *edge_serial, struct edge
1219 if (edge_port->write_in_progress || 1289 if (edge_port->write_in_progress ||
1220 !edge_port->open || 1290 !edge_port->open ||
1221 (fifo->count == 0)) { 1291 (fifo->count == 0)) {
1222 dbg("%s(%d) EXIT - fifo %d, PendingWrite = %d", __func__, edge_port->port->number, fifo->count, edge_port->write_in_progress); 1292 dbg("%s(%d) EXIT - fifo %d, PendingWrite = %d",
1293 __func__, edge_port->port->number,
1294 fifo->count, edge_port->write_in_progress);
1223 goto exit_send; 1295 goto exit_send;
1224 } 1296 }
1225 1297
1226 // since the amount of data in the fifo will always fit into the 1298 /* since the amount of data in the fifo will always fit into the
1227 // edgeport buffer we do not need to check the write length 1299 * edgeport buffer we do not need to check the write length
1228 1300 *
1229 // Do we have enough credits for this port to make it worthwhile 1301 * Do we have enough credits for this port to make it worthwhile
1230 // to bother queueing a write. If it's too small, say a few bytes, 1302 * to bother queueing a write. If it's too small, say a few bytes,
1231 // it's better to wait for more credits so we can do a larger 1303 * it's better to wait for more credits so we can do a larger write.
1232 // write. 1304 */
1233 if (edge_port->txCredits < EDGE_FW_GET_TX_CREDITS_SEND_THRESHOLD(edge_port->maxTxCredits,EDGE_FW_BULK_MAX_PACKET_SIZE)) { 1305 if (edge_port->txCredits < EDGE_FW_GET_TX_CREDITS_SEND_THRESHOLD(edge_port->maxTxCredits, EDGE_FW_BULK_MAX_PACKET_SIZE)) {
1234 dbg("%s(%d) Not enough credit - fifo %d TxCredit %d", __func__, edge_port->port->number, fifo->count, edge_port->txCredits ); 1306 dbg("%s(%d) Not enough credit - fifo %d TxCredit %d",
1307 __func__, edge_port->port->number, fifo->count,
1308 edge_port->txCredits);
1235 goto exit_send; 1309 goto exit_send;
1236 } 1310 }
1237 1311
1238 // lock this write 1312 /* lock this write */
1239 edge_port->write_in_progress = true; 1313 edge_port->write_in_progress = true;
1240 1314
1241 // get a pointer to the write_urb 1315 /* get a pointer to the write_urb */
1242 urb = edge_port->write_urb; 1316 urb = edge_port->write_urb;
1243 1317
1244 /* make sure transfer buffer is freed */ 1318 /* make sure transfer buffer is freed */
1245 kfree(urb->transfer_buffer); 1319 kfree(urb->transfer_buffer);
1246 urb->transfer_buffer = NULL; 1320 urb->transfer_buffer = NULL;
1247 1321
1248 /* build the data header for the buffer and port that we are about to send out */ 1322 /* build the data header for the buffer and port that we are about
1323 to send out */
1249 count = fifo->count; 1324 count = fifo->count;
1250 buffer = kmalloc (count+2, GFP_ATOMIC); 1325 buffer = kmalloc(count+2, GFP_ATOMIC);
1251 if (buffer == NULL) { 1326 if (buffer == NULL) {
1252 dev_err(&edge_port->port->dev, "%s - no more kernel memory...\n", __func__); 1327 dev_err(&edge_port->port->dev,
1328 "%s - no more kernel memory...\n", __func__);
1253 edge_port->write_in_progress = false; 1329 edge_port->write_in_progress = false;
1254 goto exit_send; 1330 goto exit_send;
1255 } 1331 }
1256 buffer[0] = IOSP_BUILD_DATA_HDR1 (edge_port->port->number - edge_port->port->serial->minor, count); 1332 buffer[0] = IOSP_BUILD_DATA_HDR1(edge_port->port->number
1257 buffer[1] = IOSP_BUILD_DATA_HDR2 (edge_port->port->number - edge_port->port->serial->minor, count); 1333 - edge_port->port->serial->minor, count);
1334 buffer[1] = IOSP_BUILD_DATA_HDR2(edge_port->port->number
1335 - edge_port->port->serial->minor, count);
1258 1336
1259 /* now copy our data */ 1337 /* now copy our data */
1260 bytesleft = fifo->size - fifo->tail; 1338 bytesleft = fifo->size - fifo->tail;
1261 firsthalf = min (bytesleft, count); 1339 firsthalf = min(bytesleft, count);
1262 memcpy(&buffer[2], &fifo->fifo[fifo->tail], firsthalf); 1340 memcpy(&buffer[2], &fifo->fifo[fifo->tail], firsthalf);
1263 fifo->tail += firsthalf; 1341 fifo->tail += firsthalf;
1264 fifo->count -= firsthalf; 1342 fifo->count -= firsthalf;
1265 if (fifo->tail == fifo->size) { 1343 if (fifo->tail == fifo->size)
1266 fifo->tail = 0; 1344 fifo->tail = 0;
1267 }
1268 1345
1269 secondhalf = count-firsthalf; 1346 secondhalf = count-firsthalf;
1270 if (secondhalf) { 1347 if (secondhalf) {
1271 memcpy(&buffer[2+firsthalf], &fifo->fifo[fifo->tail], secondhalf); 1348 memcpy(&buffer[2+firsthalf], &fifo->fifo[fifo->tail],
1349 secondhalf);
1272 fifo->tail += secondhalf; 1350 fifo->tail += secondhalf;
1273 fifo->count -= secondhalf; 1351 fifo->count -= secondhalf;
1274 } 1352 }
1275 1353
1276 if (count) 1354 if (count)
1277 usb_serial_debug_data(debug, &edge_port->port->dev, __func__, count, &buffer[2]); 1355 usb_serial_debug_data(debug, &edge_port->port->dev,
1356 __func__, count, &buffer[2]);
1278 1357
1279 /* fill up the urb with all of our data and submit it */ 1358 /* fill up the urb with all of our data and submit it */
1280 usb_fill_bulk_urb (urb, edge_serial->serial->dev, 1359 usb_fill_bulk_urb(urb, edge_serial->serial->dev,
1281 usb_sndbulkpipe(edge_serial->serial->dev, edge_serial->bulk_out_endpoint), 1360 usb_sndbulkpipe(edge_serial->serial->dev,
1282 buffer, count+2, edge_bulk_out_data_callback, edge_port); 1361 edge_serial->bulk_out_endpoint),
1362 buffer, count+2,
1363 edge_bulk_out_data_callback, edge_port);
1283 1364
1284 /* decrement the number of credits we have by the number we just sent */ 1365 /* decrement the number of credits we have by the number we just sent */
1285 edge_port->txCredits -= count; 1366 edge_port->txCredits -= count;
@@ -1289,14 +1370,17 @@ static void send_more_port_data(struct edgeport_serial *edge_serial, struct edge
1289 status = usb_submit_urb(urb, GFP_ATOMIC); 1370 status = usb_submit_urb(urb, GFP_ATOMIC);
1290 if (status) { 1371 if (status) {
1291 /* something went wrong */ 1372 /* something went wrong */
1292 dev_err(&edge_port->port->dev, "%s - usb_submit_urb(write bulk) failed, status = %d, data lost\n", __func__, status); 1373 dev_err(&edge_port->port->dev,
1374 "%s - usb_submit_urb(write bulk) failed, status = %d, data lost\n",
1375 __func__, status);
1293 edge_port->write_in_progress = false; 1376 edge_port->write_in_progress = false;
1294 1377
1295 /* revert the credits as something bad happened. */ 1378 /* revert the credits as something bad happened. */
1296 edge_port->txCredits += count; 1379 edge_port->txCredits += count;
1297 edge_port->icount.tx -= count; 1380 edge_port->icount.tx -= count;
1298 } 1381 }
1299 dbg("%s wrote %d byte(s) TxCredit %d, Fifo %d", __func__, count, edge_port->txCredits, fifo->count); 1382 dbg("%s wrote %d byte(s) TxCredit %d, Fifo %d",
1383 __func__, count, edge_port->txCredits, fifo->count);
1300 1384
1301exit_send: 1385exit_send:
1302 spin_unlock_irqrestore(&edge_port->ep_lock, flags); 1386 spin_unlock_irqrestore(&edge_port->ep_lock, flags);
@@ -1305,11 +1389,10 @@ exit_send:
1305 1389
1306/***************************************************************************** 1390/*****************************************************************************
1307 * edge_write_room 1391 * edge_write_room
1308 * this function is called by the tty driver when it wants to know how many 1392 * this function is called by the tty driver when it wants to know how
1309 * bytes of data we can accept for a specific port. 1393 * many bytes of data we can accept for a specific port. If successful,
1310 * If successful, we return the amount of room that we have for this port 1394 * we return the amount of room that we have for this port (the txCredits)
1311 * (the txCredits), 1395 * otherwise we return a negative error number.
1312 * Otherwise we return a negative error number.
1313 *****************************************************************************/ 1396 *****************************************************************************/
1314static int edge_write_room(struct tty_struct *tty) 1397static int edge_write_room(struct tty_struct *tty)
1315{ 1398{
@@ -1332,7 +1415,7 @@ static int edge_write_room(struct tty_struct *tty)
1332 return -EINVAL; 1415 return -EINVAL;
1333 } 1416 }
1334 1417
1335 // total of both buffers is still txCredit 1418 /* total of both buffers is still txCredit */
1336 spin_lock_irqsave(&edge_port->ep_lock, flags); 1419 spin_lock_irqsave(&edge_port->ep_lock, flags);
1337 room = edge_port->txCredits - edge_port->txfifo.count; 1420 room = edge_port->txCredits - edge_port->txfifo.count;
1338 spin_unlock_irqrestore(&edge_port->ep_lock, flags); 1421 spin_unlock_irqrestore(&edge_port->ep_lock, flags);
@@ -1344,11 +1427,11 @@ static int edge_write_room(struct tty_struct *tty)
1344 1427
1345/***************************************************************************** 1428/*****************************************************************************
1346 * edge_chars_in_buffer 1429 * edge_chars_in_buffer
1347 * this function is called by the tty driver when it wants to know how many 1430 * this function is called by the tty driver when it wants to know how
1348 * bytes of data we currently have outstanding in the port (data that has 1431 * many bytes of data we currently have outstanding in the port (data that
1349 * been written, but hasn't made it out the port yet) 1432 * has been written, but hasn't made it out the port yet)
1350 * If successful, we return the number of bytes left to be written in the 1433 * If successful, we return the number of bytes left to be written in the
1351 * system, 1434 * system,
1352 * Otherwise we return a negative error number. 1435 * Otherwise we return a negative error number.
1353 *****************************************************************************/ 1436 *****************************************************************************/
1354static int edge_chars_in_buffer(struct tty_struct *tty) 1437static int edge_chars_in_buffer(struct tty_struct *tty)
@@ -1371,10 +1454,12 @@ static int edge_chars_in_buffer(struct tty_struct *tty)
1371 } 1454 }
1372 1455
1373 spin_lock_irqsave(&edge_port->ep_lock, flags); 1456 spin_lock_irqsave(&edge_port->ep_lock, flags);
1374 num_chars = edge_port->maxTxCredits - edge_port->txCredits + edge_port->txfifo.count; 1457 num_chars = edge_port->maxTxCredits - edge_port->txCredits +
1458 edge_port->txfifo.count;
1375 spin_unlock_irqrestore(&edge_port->ep_lock, flags); 1459 spin_unlock_irqrestore(&edge_port->ep_lock, flags);
1376 if (num_chars) { 1460 if (num_chars) {
1377 dbg("%s(port %d) - returns %d", __func__, port->number, num_chars); 1461 dbg("%s(port %d) - returns %d", __func__,
1462 port->number, num_chars);
1378 } 1463 }
1379 1464
1380 return num_chars; 1465 return num_chars;
@@ -1405,19 +1490,18 @@ static void edge_throttle(struct tty_struct *tty)
1405 /* if we are implementing XON/XOFF, send the stop character */ 1490 /* if we are implementing XON/XOFF, send the stop character */
1406 if (I_IXOFF(tty)) { 1491 if (I_IXOFF(tty)) {
1407 unsigned char stop_char = STOP_CHAR(tty); 1492 unsigned char stop_char = STOP_CHAR(tty);
1408 status = edge_write (tty, port, &stop_char, 1); 1493 status = edge_write(tty, port, &stop_char, 1);
1409 if (status <= 0) { 1494 if (status <= 0)
1410 return; 1495 return;
1411 }
1412 } 1496 }
1413 1497
1414 /* if we are implementing RTS/CTS, toggle that line */ 1498 /* if we are implementing RTS/CTS, toggle that line */
1415 if (tty->termios->c_cflag & CRTSCTS) { 1499 if (tty->termios->c_cflag & CRTSCTS) {
1416 edge_port->shadowMCR &= ~MCR_RTS; 1500 edge_port->shadowMCR &= ~MCR_RTS;
1417 status = send_cmd_write_uart_register(edge_port, MCR, edge_port->shadowMCR); 1501 status = send_cmd_write_uart_register(edge_port, MCR,
1418 if (status != 0) { 1502 edge_port->shadowMCR);
1503 if (status != 0)
1419 return; 1504 return;
1420 }
1421 } 1505 }
1422 1506
1423 return; 1507 return;
@@ -1426,8 +1510,8 @@ static void edge_throttle(struct tty_struct *tty)
1426 1510
1427/***************************************************************************** 1511/*****************************************************************************
1428 * edge_unthrottle 1512 * edge_unthrottle
1429 * this function is called by the tty driver when it wants to resume the data 1513 * this function is called by the tty driver when it wants to resume the
1430 * being read from the port (called after SerialThrottle is called) 1514 * data being read from the port (called after SerialThrottle is called)
1431 *****************************************************************************/ 1515 *****************************************************************************/
1432static void edge_unthrottle(struct tty_struct *tty) 1516static void edge_unthrottle(struct tty_struct *tty)
1433{ 1517{
@@ -1455,14 +1539,16 @@ static void edge_unthrottle(struct tty_struct *tty)
1455 /* if we are implementing RTS/CTS, toggle that line */ 1539 /* if we are implementing RTS/CTS, toggle that line */
1456 if (tty->termios->c_cflag & CRTSCTS) { 1540 if (tty->termios->c_cflag & CRTSCTS) {
1457 edge_port->shadowMCR |= MCR_RTS; 1541 edge_port->shadowMCR |= MCR_RTS;
1458 send_cmd_write_uart_register(edge_port, MCR, edge_port->shadowMCR); 1542 send_cmd_write_uart_register(edge_port, MCR,
1543 edge_port->shadowMCR);
1459 } 1544 }
1460} 1545}
1461 1546
1462 1547
1463/***************************************************************************** 1548/*****************************************************************************
1464 * SerialSetTermios 1549 * SerialSetTermios
1465 * this function is called by the tty driver when it wants to change the termios structure 1550 * this function is called by the tty driver when it wants to change
1551 * the termios structure
1466 *****************************************************************************/ 1552 *****************************************************************************/
1467static void edge_set_termios(struct tty_struct *tty, 1553static void edge_set_termios(struct tty_struct *tty,
1468 struct usb_serial_port *port, struct ktermios *old_termios) 1554 struct usb_serial_port *port, struct ktermios *old_termios)
@@ -1499,9 +1585,10 @@ static void edge_set_termios(struct tty_struct *tty,
1499 * release the bus after transmitting. This must be done when 1585 * release the bus after transmitting. This must be done when
1500 * the transmit shift register is empty, not be done when the 1586 * the transmit shift register is empty, not be done when the
1501 * transmit holding register is empty. This functionality 1587 * transmit holding register is empty. This functionality
1502 * allows an RS485 driver to be written in user space. 1588 * allows an RS485 driver to be written in user space.
1503 *****************************************************************************/ 1589 *****************************************************************************/
1504static int get_lsr_info(struct edgeport_port *edge_port, unsigned int __user *value) 1590static int get_lsr_info(struct edgeport_port *edge_port,
1591 unsigned int __user *value)
1505{ 1592{
1506 unsigned int result = 0; 1593 unsigned int result = 0;
1507 unsigned long flags; 1594 unsigned long flags;
@@ -1519,7 +1606,8 @@ static int get_lsr_info(struct edgeport_port *edge_port, unsigned int __user *va
1519 return 0; 1606 return 0;
1520} 1607}
1521 1608
1522static int edge_tiocmset(struct tty_struct *tty, struct file *file, unsigned int set, unsigned int clear) 1609static int edge_tiocmset(struct tty_struct *tty, struct file *file,
1610 unsigned int set, unsigned int clear)
1523{ 1611{
1524 struct usb_serial_port *port = tty->driver_data; 1612 struct usb_serial_port *port = tty->driver_data;
1525 struct edgeport_port *edge_port = usb_get_serial_port_data(port); 1613 struct edgeport_port *edge_port = usb_get_serial_port_data(port);
@@ -1574,7 +1662,8 @@ static int edge_tiocmget(struct tty_struct *tty, struct file *file)
1574 return result; 1662 return result;
1575} 1663}
1576 1664
1577static int get_serial_info(struct edgeport_port *edge_port, struct serial_struct __user *retinfo) 1665static int get_serial_info(struct edgeport_port *edge_port,
1666 struct serial_struct __user *retinfo)
1578{ 1667{
1579 struct serial_struct tmp; 1668 struct serial_struct tmp;
1580 1669
@@ -1617,60 +1706,61 @@ static int edge_ioctl(struct tty_struct *tty, struct file *file,
1617 dbg("%s - port %d, cmd = 0x%x", __func__, port->number, cmd); 1706 dbg("%s - port %d, cmd = 0x%x", __func__, port->number, cmd);
1618 1707
1619 switch (cmd) { 1708 switch (cmd) {
1620 case TIOCSERGETLSR: 1709 case TIOCSERGETLSR:
1621 dbg("%s (%d) TIOCSERGETLSR", __func__, port->number); 1710 dbg("%s (%d) TIOCSERGETLSR", __func__, port->number);
1622 return get_lsr_info(edge_port, (unsigned int __user *) arg); 1711 return get_lsr_info(edge_port, (unsigned int __user *) arg);
1623 1712
1624 case TIOCGSERIAL: 1713 case TIOCGSERIAL:
1625 dbg("%s (%d) TIOCGSERIAL", __func__, port->number); 1714 dbg("%s (%d) TIOCGSERIAL", __func__, port->number);
1626 return get_serial_info(edge_port, (struct serial_struct __user *) arg); 1715 return get_serial_info(edge_port, (struct serial_struct __user *) arg);
1627 1716
1628 case TIOCMIWAIT: 1717 case TIOCMIWAIT:
1629 dbg("%s (%d) TIOCMIWAIT", __func__, port->number); 1718 dbg("%s (%d) TIOCMIWAIT", __func__, port->number);
1630 cprev = edge_port->icount; 1719 cprev = edge_port->icount;
1631 while (1) { 1720 while (1) {
1632 prepare_to_wait(&edge_port->delta_msr_wait, &wait, TASK_INTERRUPTIBLE); 1721 prepare_to_wait(&edge_port->delta_msr_wait,
1633 schedule(); 1722 &wait, TASK_INTERRUPTIBLE);
1634 finish_wait(&edge_port->delta_msr_wait, &wait); 1723 schedule();
1635 /* see if a signal did it */ 1724 finish_wait(&edge_port->delta_msr_wait, &wait);
1636 if (signal_pending(current)) 1725 /* see if a signal did it */
1637 return -ERESTARTSYS; 1726 if (signal_pending(current))
1638 cnow = edge_port->icount; 1727 return -ERESTARTSYS;
1639 if (cnow.rng == cprev.rng && cnow.dsr == cprev.dsr && 1728 cnow = edge_port->icount;
1640 cnow.dcd == cprev.dcd && cnow.cts == cprev.cts) 1729 if (cnow.rng == cprev.rng && cnow.dsr == cprev.dsr &&
1641 return -EIO; /* no change => error */ 1730 cnow.dcd == cprev.dcd && cnow.cts == cprev.cts)
1642 if (((arg & TIOCM_RNG) && (cnow.rng != cprev.rng)) || 1731 return -EIO; /* no change => error */
1643 ((arg & TIOCM_DSR) && (cnow.dsr != cprev.dsr)) || 1732 if (((arg & TIOCM_RNG) && (cnow.rng != cprev.rng)) ||
1644 ((arg & TIOCM_CD) && (cnow.dcd != cprev.dcd)) || 1733 ((arg & TIOCM_DSR) && (cnow.dsr != cprev.dsr)) ||
1645 ((arg & TIOCM_CTS) && (cnow.cts != cprev.cts)) ) { 1734 ((arg & TIOCM_CD) && (cnow.dcd != cprev.dcd)) ||
1646 return 0; 1735 ((arg & TIOCM_CTS) && (cnow.cts != cprev.cts))) {
1647 } 1736 return 0;
1648 cprev = cnow;
1649 } 1737 }
1650 /* NOTREACHED */ 1738 cprev = cnow;
1651 break; 1739 }
1740 /* NOTREACHED */
1741 break;
1652 1742
1653 case TIOCGICOUNT: 1743 case TIOCGICOUNT:
1654 cnow = edge_port->icount; 1744 cnow = edge_port->icount;
1655 memset(&icount, 0, sizeof(icount)); 1745 memset(&icount, 0, sizeof(icount));
1656 icount.cts = cnow.cts; 1746 icount.cts = cnow.cts;
1657 icount.dsr = cnow.dsr; 1747 icount.dsr = cnow.dsr;
1658 icount.rng = cnow.rng; 1748 icount.rng = cnow.rng;
1659 icount.dcd = cnow.dcd; 1749 icount.dcd = cnow.dcd;
1660 icount.rx = cnow.rx; 1750 icount.rx = cnow.rx;
1661 icount.tx = cnow.tx; 1751 icount.tx = cnow.tx;
1662 icount.frame = cnow.frame; 1752 icount.frame = cnow.frame;
1663 icount.overrun = cnow.overrun; 1753 icount.overrun = cnow.overrun;
1664 icount.parity = cnow.parity; 1754 icount.parity = cnow.parity;
1665 icount.brk = cnow.brk; 1755 icount.brk = cnow.brk;
1666 icount.buf_overrun = cnow.buf_overrun; 1756 icount.buf_overrun = cnow.buf_overrun;
1667 1757
1668 dbg("%s (%d) TIOCGICOUNT RX=%d, TX=%d", __func__, port->number, icount.rx, icount.tx ); 1758 dbg("%s (%d) TIOCGICOUNT RX=%d, TX=%d",
1669 if (copy_to_user((void __user *)arg, &icount, sizeof(icount))) 1759 __func__, port->number, icount.rx, icount.tx);
1670 return -EFAULT; 1760 if (copy_to_user((void __user *)arg, &icount, sizeof(icount)))
1671 return 0; 1761 return -EFAULT;
1762 return 0;
1672 } 1763 }
1673
1674 return -ENOIOCTLCMD; 1764 return -ENOIOCTLCMD;
1675} 1765}
1676 1766
@@ -1679,7 +1769,7 @@ static int edge_ioctl(struct tty_struct *tty, struct file *file,
1679 * SerialBreak 1769 * SerialBreak
1680 * this function sends a break to the port 1770 * this function sends a break to the port
1681 *****************************************************************************/ 1771 *****************************************************************************/
1682static void edge_break (struct tty_struct *tty, int break_state) 1772static void edge_break(struct tty_struct *tty, int break_state)
1683{ 1773{
1684 struct usb_serial_port *port = tty->driver_data; 1774 struct usb_serial_port *port = tty->driver_data;
1685 struct edgeport_port *edge_port = usb_get_serial_port_data(port); 1775 struct edgeport_port *edge_port = usb_get_serial_port_data(port);
@@ -1693,9 +1783,9 @@ static void edge_break (struct tty_struct *tty, int break_state)
1693 edge_port->chaseResponsePending = true; 1783 edge_port->chaseResponsePending = true;
1694 1784
1695 dbg("%s - Sending IOSP_CMD_CHASE_PORT", __func__); 1785 dbg("%s - Sending IOSP_CMD_CHASE_PORT", __func__);
1696 status = send_iosp_ext_cmd (edge_port, IOSP_CMD_CHASE_PORT, 0); 1786 status = send_iosp_ext_cmd(edge_port, IOSP_CMD_CHASE_PORT, 0);
1697 if (status == 0) { 1787 if (status == 0) {
1698 // block until chase finished 1788 /* block until chase finished */
1699 block_until_chase_response(edge_port); 1789 block_until_chase_response(edge_port);
1700 } else { 1790 } else {
1701 edge_port->chaseResponsePending = false; 1791 edge_port->chaseResponsePending = false;
@@ -1707,14 +1797,16 @@ static void edge_break (struct tty_struct *tty, int break_state)
1707 (edge_serial->epic_descriptor.Supports.IOSPSetClrBreak))) { 1797 (edge_serial->epic_descriptor.Supports.IOSPSetClrBreak))) {
1708 if (break_state == -1) { 1798 if (break_state == -1) {
1709 dbg("%s - Sending IOSP_CMD_SET_BREAK", __func__); 1799 dbg("%s - Sending IOSP_CMD_SET_BREAK", __func__);
1710 status = send_iosp_ext_cmd (edge_port, IOSP_CMD_SET_BREAK, 0); 1800 status = send_iosp_ext_cmd(edge_port,
1801 IOSP_CMD_SET_BREAK, 0);
1711 } else { 1802 } else {
1712 dbg("%s - Sending IOSP_CMD_CLEAR_BREAK", __func__); 1803 dbg("%s - Sending IOSP_CMD_CLEAR_BREAK", __func__);
1713 status = send_iosp_ext_cmd (edge_port, IOSP_CMD_CLEAR_BREAK, 0); 1804 status = send_iosp_ext_cmd(edge_port,
1714 } 1805 IOSP_CMD_CLEAR_BREAK, 0);
1715 if (status) {
1716 dbg("%s - error sending break set/clear command.", __func__);
1717 } 1806 }
1807 if (status)
1808 dbg("%s - error sending break set/clear command.",
1809 __func__);
1718 } 1810 }
1719 1811
1720 return; 1812 return;
@@ -1725,7 +1817,8 @@ static void edge_break (struct tty_struct *tty, int break_state)
1725 * process_rcvd_data 1817 * process_rcvd_data
1726 * this function handles the data received on the bulk in pipe. 1818 * this function handles the data received on the bulk in pipe.
1727 *****************************************************************************/ 1819 *****************************************************************************/
1728static void process_rcvd_data (struct edgeport_serial *edge_serial, unsigned char * buffer, __u16 bufferLength) 1820static void process_rcvd_data(struct edgeport_serial *edge_serial,
1821 unsigned char *buffer, __u16 bufferLength)
1729{ 1822{
1730 struct usb_serial_port *port; 1823 struct usb_serial_port *port;
1731 struct edgeport_port *edge_port; 1824 struct edgeport_port *edge_port;
@@ -1746,105 +1839,123 @@ static void process_rcvd_data (struct edgeport_serial *edge_serial, unsigned cha
1746 lastBufferLength = bufferLength; 1839 lastBufferLength = bufferLength;
1747 1840
1748 switch (edge_serial->rxState) { 1841 switch (edge_serial->rxState) {
1749 case EXPECT_HDR1: 1842 case EXPECT_HDR1:
1750 edge_serial->rxHeader1 = *buffer; 1843 edge_serial->rxHeader1 = *buffer;
1751 ++buffer; 1844 ++buffer;
1752 --bufferLength; 1845 --bufferLength;
1753 1846
1754 if (bufferLength == 0) { 1847 if (bufferLength == 0) {
1755 edge_serial->rxState = EXPECT_HDR2; 1848 edge_serial->rxState = EXPECT_HDR2;
1849 break;
1850 }
1851 /* otherwise, drop on through */
1852 case EXPECT_HDR2:
1853 edge_serial->rxHeader2 = *buffer;
1854 ++buffer;
1855 --bufferLength;
1856
1857 dbg("%s - Hdr1=%02X Hdr2=%02X", __func__,
1858 edge_serial->rxHeader1, edge_serial->rxHeader2);
1859 /* Process depending on whether this header is
1860 * data or status */
1861
1862 if (IS_CMD_STAT_HDR(edge_serial->rxHeader1)) {
1863 /* Decode this status header and go to
1864 * EXPECT_HDR1 (if we can process the status
1865 * with only 2 bytes), or go to EXPECT_HDR3 to
1866 * get the third byte. */
1867 edge_serial->rxPort =
1868 IOSP_GET_HDR_PORT(edge_serial->rxHeader1);
1869 edge_serial->rxStatusCode =
1870 IOSP_GET_STATUS_CODE(
1871 edge_serial->rxHeader1);
1872
1873 if (!IOSP_STATUS_IS_2BYTE(
1874 edge_serial->rxStatusCode)) {
1875 /* This status needs additional bytes.
1876 * Save what we have and then wait for
1877 * more data.
1878 */
1879 edge_serial->rxStatusParam
1880 = edge_serial->rxHeader2;
1881 edge_serial->rxState = EXPECT_HDR3;
1756 break; 1882 break;
1757 } 1883 }
1758 /* otherwise, drop on through */ 1884 /* We have all the header bytes, process the
1759 1885 status now */
1760 case EXPECT_HDR2: 1886 process_rcvd_status(edge_serial,
1761 edge_serial->rxHeader2 = *buffer; 1887 edge_serial->rxHeader2, 0);
1762 ++buffer; 1888 edge_serial->rxState = EXPECT_HDR1;
1763 --bufferLength; 1889 break;
1764 1890 } else {
1765 dbg("%s - Hdr1=%02X Hdr2=%02X", __func__, edge_serial->rxHeader1, edge_serial->rxHeader2); 1891 edge_serial->rxPort =
1766 1892 IOSP_GET_HDR_PORT(edge_serial->rxHeader1);
1767 // Process depending on whether this header is 1893 edge_serial->rxBytesRemaining =
1768 // data or status 1894 IOSP_GET_HDR_DATA_LEN(
1769 1895 edge_serial->rxHeader1,
1770 if (IS_CMD_STAT_HDR(edge_serial->rxHeader1)) { 1896 edge_serial->rxHeader2);
1771 // Decode this status header and goto EXPECT_HDR1 (if we 1897 dbg("%s - Data for Port %u Len %u",
1772 // can process the status with only 2 bytes), or goto 1898 __func__,
1773 // EXPECT_HDR3 to get the third byte. 1899 edge_serial->rxPort,
1774 1900 edge_serial->rxBytesRemaining);
1775 edge_serial->rxPort = IOSP_GET_HDR_PORT(edge_serial->rxHeader1); 1901
1776 edge_serial->rxStatusCode = IOSP_GET_STATUS_CODE(edge_serial->rxHeader1); 1902 /* ASSERT(DevExt->RxPort < DevExt->NumPorts);
1777 1903 * ASSERT(DevExt->RxBytesRemaining <
1778 if (!IOSP_STATUS_IS_2BYTE(edge_serial->rxStatusCode)) { 1904 * IOSP_MAX_DATA_LENGTH);
1779 // This status needs additional bytes. Save what we have 1905 */
1780 // and then wait for more data.
1781 edge_serial->rxStatusParam = edge_serial->rxHeader2;
1782
1783 edge_serial->rxState = EXPECT_HDR3;
1784 break;
1785 }
1786 1906
1787 // We have all the header bytes, process the status now 1907 if (bufferLength == 0) {
1788 process_rcvd_status (edge_serial, edge_serial->rxHeader2, 0); 1908 edge_serial->rxState = EXPECT_DATA;
1789 edge_serial->rxState = EXPECT_HDR1;
1790 break; 1909 break;
1791 } else {
1792 edge_serial->rxPort = IOSP_GET_HDR_PORT(edge_serial->rxHeader1);
1793 edge_serial->rxBytesRemaining = IOSP_GET_HDR_DATA_LEN(edge_serial->rxHeader1, edge_serial->rxHeader2);
1794
1795 dbg("%s - Data for Port %u Len %u", __func__, edge_serial->rxPort, edge_serial->rxBytesRemaining);
1796
1797 //ASSERT( DevExt->RxPort < DevExt->NumPorts );
1798 //ASSERT( DevExt->RxBytesRemaining < IOSP_MAX_DATA_LENGTH );
1799
1800 if (bufferLength == 0 ) {
1801 edge_serial->rxState = EXPECT_DATA;
1802 break;
1803 }
1804 // Else, drop through
1805 } 1910 }
1911 /* Else, drop through */
1912 }
1913 case EXPECT_DATA: /* Expect data */
1914 if (bufferLength < edge_serial->rxBytesRemaining) {
1915 rxLen = bufferLength;
1916 /* Expect data to start next buffer */
1917 edge_serial->rxState = EXPECT_DATA;
1918 } else {
1919 /* BufLen >= RxBytesRemaining */
1920 rxLen = edge_serial->rxBytesRemaining;
1921 /* Start another header next time */
1922 edge_serial->rxState = EXPECT_HDR1;
1923 }
1806 1924
1807 case EXPECT_DATA: // Expect data 1925 bufferLength -= rxLen;
1808 1926 edge_serial->rxBytesRemaining -= rxLen;
1809 if (bufferLength < edge_serial->rxBytesRemaining) {
1810 rxLen = bufferLength;
1811 edge_serial->rxState = EXPECT_DATA; // Expect data to start next buffer
1812 } else {
1813 // BufLen >= RxBytesRemaining
1814 rxLen = edge_serial->rxBytesRemaining;
1815 edge_serial->rxState = EXPECT_HDR1; // Start another header next time
1816 }
1817 1927
1818 bufferLength -= rxLen; 1928 /* spit this data back into the tty driver if this
1819 edge_serial->rxBytesRemaining -= rxLen; 1929 port is open */
1820 1930 if (rxLen) {
1821 /* spit this data back into the tty driver if this port is open */ 1931 port = edge_serial->serial->port[
1822 if (rxLen) { 1932 edge_serial->rxPort];
1823 port = edge_serial->serial->port[edge_serial->rxPort]; 1933 edge_port = usb_get_serial_port_data(port);
1824 edge_port = usb_get_serial_port_data(port); 1934 if (edge_port->open) {
1825 if (edge_port->open) { 1935 tty = edge_port->port->port.tty;
1826 tty = edge_port->port->port.tty; 1936 if (tty) {
1827 if (tty) { 1937 dbg("%s - Sending %d bytes to TTY for port %d",
1828 dbg("%s - Sending %d bytes to TTY for port %d", __func__, rxLen, edge_serial->rxPort); 1938 __func__, rxLen, edge_serial->rxPort);
1829 edge_tty_recv(&edge_serial->serial->dev->dev, tty, buffer, rxLen); 1939 edge_tty_recv(&edge_serial->serial->dev->dev, tty, buffer, rxLen);
1830 }
1831 edge_port->icount.rx += rxLen;
1832 } 1940 }
1833 buffer += rxLen; 1941 edge_port->icount.rx += rxLen;
1834 } 1942 }
1943 buffer += rxLen;
1944 }
1945 break;
1835 1946
1836 break; 1947 case EXPECT_HDR3: /* Expect 3rd byte of status header */
1837 1948 edge_serial->rxHeader3 = *buffer;
1838 case EXPECT_HDR3: // Expect 3rd byte of status header 1949 ++buffer;
1839 edge_serial->rxHeader3 = *buffer; 1950 --bufferLength;
1840 ++buffer; 1951
1841 --bufferLength; 1952 /* We have all the header bytes, process the
1842 1953 status now */
1843 // We have all the header bytes, process the status now 1954 process_rcvd_status(edge_serial,
1844 process_rcvd_status (edge_serial, edge_serial->rxStatusParam, edge_serial->rxHeader3); 1955 edge_serial->rxStatusParam,
1845 edge_serial->rxState = EXPECT_HDR1; 1956 edge_serial->rxHeader3);
1846 break; 1957 edge_serial->rxState = EXPECT_HDR1;
1847 1958 break;
1848 } 1959 }
1849 } 1960 }
1850} 1961}
@@ -1852,9 +1963,11 @@ static void process_rcvd_data (struct edgeport_serial *edge_serial, unsigned cha
1852 1963
1853/***************************************************************************** 1964/*****************************************************************************
1854 * process_rcvd_status 1965 * process_rcvd_status
1855 * this function handles the any status messages received on the bulk in pipe. 1966 * this function handles the any status messages received on the
1967 * bulk in pipe.
1856 *****************************************************************************/ 1968 *****************************************************************************/
1857static void process_rcvd_status (struct edgeport_serial *edge_serial, __u8 byte2, __u8 byte3) 1969static void process_rcvd_status(struct edgeport_serial *edge_serial,
1970 __u8 byte2, __u8 byte3)
1858{ 1971{
1859 struct usb_serial_port *port; 1972 struct usb_serial_port *port;
1860 struct edgeport_port *edge_port; 1973 struct edgeport_port *edge_port;
@@ -1864,7 +1977,9 @@ static void process_rcvd_status (struct edgeport_serial *edge_serial, __u8 byte2
1864 port = edge_serial->serial->port[edge_serial->rxPort]; 1977 port = edge_serial->serial->port[edge_serial->rxPort];
1865 edge_port = usb_get_serial_port_data(port); 1978 edge_port = usb_get_serial_port_data(port);
1866 if (edge_port == NULL) { 1979 if (edge_port == NULL) {
1867 dev_err(&edge_serial->serial->dev->dev, "%s - edge_port == NULL for port %d\n", __func__, edge_serial->rxPort); 1980 dev_err(&edge_serial->serial->dev->dev,
1981 "%s - edge_port == NULL for port %d\n",
1982 __func__, edge_serial->rxPort);
1868 return; 1983 return;
1869 } 1984 }
1870 1985
@@ -1872,22 +1987,28 @@ static void process_rcvd_status (struct edgeport_serial *edge_serial, __u8 byte2
1872 1987
1873 if (code == IOSP_EXT_STATUS) { 1988 if (code == IOSP_EXT_STATUS) {
1874 switch (byte2) { 1989 switch (byte2) {
1875 case IOSP_EXT_STATUS_CHASE_RSP: 1990 case IOSP_EXT_STATUS_CHASE_RSP:
1876 // we want to do EXT status regardless of port open/closed 1991 /* we want to do EXT status regardless of port
1877 dbg("%s - Port %u EXT CHASE_RSP Data = %02x", __func__, edge_serial->rxPort, byte3 ); 1992 * open/closed */
1878 // Currently, the only EXT_STATUS is Chase, so process here instead of one more call 1993 dbg("%s - Port %u EXT CHASE_RSP Data = %02x",
1879 // to one more subroutine. If/when more EXT_STATUS, there'll be more work to do. 1994 __func__, edge_serial->rxPort, byte3);
1880 // Also, we currently clear flag and close the port regardless of content of above's Byte3. 1995 /* Currently, the only EXT_STATUS is Chase, so process
1881 // We could choose to do something else when Byte3 says Timeout on Chase from Edgeport, 1996 * here instead of one more call to one more subroutine
1882 // like wait longer in block_until_chase_response, but for now we don't. 1997 * If/when more EXT_STATUS, there'll be more work to do
1883 edge_port->chaseResponsePending = false; 1998 * Also, we currently clear flag and close the port
1884 wake_up (&edge_port->wait_chase); 1999 * regardless of content of above's Byte3.
1885 return; 2000 * We could choose to do something else when Byte3 says
2001 * Timeout on Chase from Edgeport, like wait longer in
2002 * block_until_chase_response, but for now we don't.
2003 */
2004 edge_port->chaseResponsePending = false;
2005 wake_up(&edge_port->wait_chase);
2006 return;
1886 2007
1887 case IOSP_EXT_STATUS_RX_CHECK_RSP: 2008 case IOSP_EXT_STATUS_RX_CHECK_RSP:
1888 dbg("%s ========== Port %u CHECK_RSP Sequence = %02x =============\n", __func__, edge_serial->rxPort, byte3 ); 2009 dbg("%s ========== Port %u CHECK_RSP Sequence = %02x =============\n", __func__, edge_serial->rxPort, byte3);
1889 //Port->RxCheckRsp = true; 2010 /* Port->RxCheckRsp = true; */
1890 return; 2011 return;
1891 } 2012 }
1892 } 2013 }
1893 2014
@@ -1895,12 +2016,14 @@ static void process_rcvd_status (struct edgeport_serial *edge_serial, __u8 byte2
1895 edge_port->txCredits = GET_TX_BUFFER_SIZE(byte3); 2016 edge_port->txCredits = GET_TX_BUFFER_SIZE(byte3);
1896 edge_port->maxTxCredits = edge_port->txCredits; 2017 edge_port->maxTxCredits = edge_port->txCredits;
1897 dbg("%s - Port %u Open Response Inital MSR = %02x TxBufferSize = %d", __func__, edge_serial->rxPort, byte2, edge_port->txCredits); 2018 dbg("%s - Port %u Open Response Inital MSR = %02x TxBufferSize = %d", __func__, edge_serial->rxPort, byte2, edge_port->txCredits);
1898 handle_new_msr (edge_port, byte2); 2019 handle_new_msr(edge_port, byte2);
1899 2020
1900 /* send the current line settings to the port so we are in sync with any further termios calls */ 2021 /* send the current line settings to the port so we are
2022 in sync with any further termios calls */
1901 /* FIXME: locking on tty */ 2023 /* FIXME: locking on tty */
1902 if (edge_port->port->port.tty) 2024 if (edge_port->port->port.tty)
1903 change_port_settings(edge_port->port->port.tty, edge_port, edge_port->port->port.tty->termios); 2025 change_port_settings(edge_port->port->port.tty,
2026 edge_port, edge_port->port->port.tty->termios);
1904 2027
1905 /* we have completed the open */ 2028 /* we have completed the open */
1906 edge_port->openPending = false; 2029 edge_port->openPending = false;
@@ -1909,45 +2032,49 @@ static void process_rcvd_status (struct edgeport_serial *edge_serial, __u8 byte2
1909 return; 2032 return;
1910 } 2033 }
1911 2034
1912 // If port is closed, silently discard all rcvd status. We can 2035 /* If port is closed, silently discard all rcvd status. We can
1913 // have cases where buffered status is received AFTER the close 2036 * have cases where buffered status is received AFTER the close
1914 // port command is sent to the Edgeport. 2037 * port command is sent to the Edgeport.
1915 if (!edge_port->open || edge_port->closePending) { 2038 */
2039 if (!edge_port->open || edge_port->closePending)
1916 return; 2040 return;
1917 }
1918 2041
1919 switch (code) { 2042 switch (code) {
1920 // Not currently sent by Edgeport 2043 /* Not currently sent by Edgeport */
1921 case IOSP_STATUS_LSR: 2044 case IOSP_STATUS_LSR:
1922 dbg("%s - Port %u LSR Status = %02x", __func__, edge_serial->rxPort, byte2); 2045 dbg("%s - Port %u LSR Status = %02x",
1923 handle_new_lsr(edge_port, false, byte2, 0); 2046 __func__, edge_serial->rxPort, byte2);
1924 break; 2047 handle_new_lsr(edge_port, false, byte2, 0);
2048 break;
1925 2049
1926 case IOSP_STATUS_LSR_DATA: 2050 case IOSP_STATUS_LSR_DATA:
1927 dbg("%s - Port %u LSR Status = %02x, Data = %02x", __func__, edge_serial->rxPort, byte2, byte3); 2051 dbg("%s - Port %u LSR Status = %02x, Data = %02x",
1928 // byte2 is LSR Register 2052 __func__, edge_serial->rxPort, byte2, byte3);
1929 // byte3 is broken data byte 2053 /* byte2 is LSR Register */
1930 handle_new_lsr(edge_port, true, byte2, byte3); 2054 /* byte3 is broken data byte */
1931 break; 2055 handle_new_lsr(edge_port, true, byte2, byte3);
1932 // 2056 break;
1933 // case IOSP_EXT_4_STATUS: 2057 /*
1934 // dbg("%s - Port %u LSR Status = %02x Data = %02x", __func__, edge_serial->rxPort, byte2, byte3); 2058 * case IOSP_EXT_4_STATUS:
1935 // break; 2059 * dbg("%s - Port %u LSR Status = %02x Data = %02x",
1936 // 2060 * __func__, edge_serial->rxPort, byte2, byte3);
1937 case IOSP_STATUS_MSR: 2061 * break;
1938 dbg("%s - Port %u MSR Status = %02x", __func__, edge_serial->rxPort, byte2); 2062 */
1939 2063 case IOSP_STATUS_MSR:
1940 // Process this new modem status and generate appropriate 2064 dbg("%s - Port %u MSR Status = %02x",
1941 // events, etc, based on the new status. This routine 2065 __func__, edge_serial->rxPort, byte2);
1942 // also saves the MSR in Port->ShadowMsr. 2066 /*
1943 handle_new_msr(edge_port, byte2); 2067 * Process this new modem status and generate appropriate
1944 break; 2068 * events, etc, based on the new status. This routine
2069 * also saves the MSR in Port->ShadowMsr.
2070 */
2071 handle_new_msr(edge_port, byte2);
2072 break;
1945 2073
1946 default: 2074 default:
1947 dbg("%s - Unrecognized IOSP status code %u\n", __func__, code); 2075 dbg("%s - Unrecognized IOSP status code %u\n", __func__, code);
1948 break; 2076 break;
1949 } 2077 }
1950
1951 return; 2078 return;
1952} 2079}
1953 2080
@@ -1956,7 +2083,8 @@ static void process_rcvd_status (struct edgeport_serial *edge_serial, __u8 byte2
1956 * edge_tty_recv 2083 * edge_tty_recv
1957 * this function passes data on to the tty flip buffer 2084 * this function passes data on to the tty flip buffer
1958 *****************************************************************************/ 2085 *****************************************************************************/
1959static void edge_tty_recv(struct device *dev, struct tty_struct *tty, unsigned char *data, int length) 2086static void edge_tty_recv(struct device *dev, struct tty_struct *tty,
2087 unsigned char *data, int length)
1960{ 2088{
1961 int cnt; 2089 int cnt;
1962 2090
@@ -1965,7 +2093,7 @@ static void edge_tty_recv(struct device *dev, struct tty_struct *tty, unsigned c
1965 if (cnt < length) { 2093 if (cnt < length) {
1966 dev_err(dev, "%s - dropping data, %d bytes lost\n", 2094 dev_err(dev, "%s - dropping data, %d bytes lost\n",
1967 __func__, length - cnt); 2095 __func__, length - cnt);
1968 if(cnt == 0) 2096 if (cnt == 0)
1969 break; 2097 break;
1970 } 2098 }
1971 tty_insert_flip_string(tty, data, cnt); 2099 tty_insert_flip_string(tty, data, cnt);
@@ -1987,22 +2115,19 @@ static void handle_new_msr(struct edgeport_port *edge_port, __u8 newMsr)
1987 2115
1988 dbg("%s %02x", __func__, newMsr); 2116 dbg("%s %02x", __func__, newMsr);
1989 2117
1990 if (newMsr & (EDGEPORT_MSR_DELTA_CTS | EDGEPORT_MSR_DELTA_DSR | EDGEPORT_MSR_DELTA_RI | EDGEPORT_MSR_DELTA_CD)) { 2118 if (newMsr & (EDGEPORT_MSR_DELTA_CTS | EDGEPORT_MSR_DELTA_DSR |
2119 EDGEPORT_MSR_DELTA_RI | EDGEPORT_MSR_DELTA_CD)) {
1991 icount = &edge_port->icount; 2120 icount = &edge_port->icount;
1992 2121
1993 /* update input line counters */ 2122 /* update input line counters */
1994 if (newMsr & EDGEPORT_MSR_DELTA_CTS) { 2123 if (newMsr & EDGEPORT_MSR_DELTA_CTS)
1995 icount->cts++; 2124 icount->cts++;
1996 } 2125 if (newMsr & EDGEPORT_MSR_DELTA_DSR)
1997 if (newMsr & EDGEPORT_MSR_DELTA_DSR) {
1998 icount->dsr++; 2126 icount->dsr++;
1999 } 2127 if (newMsr & EDGEPORT_MSR_DELTA_CD)
2000 if (newMsr & EDGEPORT_MSR_DELTA_CD) {
2001 icount->dcd++; 2128 icount->dcd++;
2002 } 2129 if (newMsr & EDGEPORT_MSR_DELTA_RI)
2003 if (newMsr & EDGEPORT_MSR_DELTA_RI) {
2004 icount->rng++; 2130 icount->rng++;
2005 }
2006 wake_up_interruptible(&edge_port->delta_msr_wait); 2131 wake_up_interruptible(&edge_port->delta_msr_wait);
2007 } 2132 }
2008 2133
@@ -2017,42 +2142,41 @@ static void handle_new_msr(struct edgeport_port *edge_port, __u8 newMsr)
2017 * handle_new_lsr 2142 * handle_new_lsr
2018 * this function handles any change to the lsr register for a port. 2143 * this function handles any change to the lsr register for a port.
2019 *****************************************************************************/ 2144 *****************************************************************************/
2020static void handle_new_lsr(struct edgeport_port *edge_port, __u8 lsrData, __u8 lsr, __u8 data) 2145static void handle_new_lsr(struct edgeport_port *edge_port, __u8 lsrData,
2146 __u8 lsr, __u8 data)
2021{ 2147{
2022 __u8 newLsr = (__u8)(lsr & (__u8)(LSR_OVER_ERR | LSR_PAR_ERR | LSR_FRM_ERR | LSR_BREAK)); 2148 __u8 newLsr = (__u8) (lsr & (__u8)
2023 struct async_icount *icount; 2149 (LSR_OVER_ERR | LSR_PAR_ERR | LSR_FRM_ERR | LSR_BREAK));
2150 struct async_icount *icount;
2024 2151
2025 dbg("%s - %02x", __func__, newLsr); 2152 dbg("%s - %02x", __func__, newLsr);
2026 2153
2027 edge_port->shadowLSR = lsr; 2154 edge_port->shadowLSR = lsr;
2028 2155
2029 if (newLsr & LSR_BREAK) { 2156 if (newLsr & LSR_BREAK) {
2030 // 2157 /*
2031 // Parity and Framing errors only count if they 2158 * Parity and Framing errors only count if they
2032 // occur exclusive of a break being 2159 * occur exclusive of a break being
2033 // received. 2160 * received.
2034 // 2161 */
2035 newLsr &= (__u8)(LSR_OVER_ERR | LSR_BREAK); 2162 newLsr &= (__u8)(LSR_OVER_ERR | LSR_BREAK);
2036 } 2163 }
2037 2164
2038 /* Place LSR data byte into Rx buffer */ 2165 /* Place LSR data byte into Rx buffer */
2039 if (lsrData && edge_port->port->port.tty) 2166 if (lsrData && edge_port->port->port.tty)
2040 edge_tty_recv(&edge_port->port->dev, edge_port->port->port.tty, &data, 1); 2167 edge_tty_recv(&edge_port->port->dev,
2168 edge_port->port->port.tty, &data, 1);
2041 2169
2042 /* update input line counters */ 2170 /* update input line counters */
2043 icount = &edge_port->icount; 2171 icount = &edge_port->icount;
2044 if (newLsr & LSR_BREAK) { 2172 if (newLsr & LSR_BREAK)
2045 icount->brk++; 2173 icount->brk++;
2046 } 2174 if (newLsr & LSR_OVER_ERR)
2047 if (newLsr & LSR_OVER_ERR) {
2048 icount->overrun++; 2175 icount->overrun++;
2049 } 2176 if (newLsr & LSR_PAR_ERR)
2050 if (newLsr & LSR_PAR_ERR) {
2051 icount->parity++; 2177 icount->parity++;
2052 } 2178 if (newLsr & LSR_FRM_ERR)
2053 if (newLsr & LSR_FRM_ERR) {
2054 icount->frame++; 2179 icount->frame++;
2055 }
2056 2180
2057 return; 2181 return;
2058} 2182}
@@ -2060,12 +2184,13 @@ static void handle_new_lsr(struct edgeport_port *edge_port, __u8 lsrData, __u8 l
2060 2184
2061/**************************************************************************** 2185/****************************************************************************
2062 * sram_write 2186 * sram_write
2063 * writes a number of bytes to the Edgeport device's sram starting at the 2187 * writes a number of bytes to the Edgeport device's sram starting at the
2064 * given address. 2188 * given address.
2065 * If successful returns the number of bytes written, otherwise it returns 2189 * If successful returns the number of bytes written, otherwise it returns
2066 * a negative error number of the problem. 2190 * a negative error number of the problem.
2067 ****************************************************************************/ 2191 ****************************************************************************/
2068static int sram_write(struct usb_serial *serial, __u16 extAddr, __u16 addr, __u16 length, const __u8 *data) 2192static int sram_write(struct usb_serial *serial, __u16 extAddr, __u16 addr,
2193 __u16 length, const __u8 *data)
2069{ 2194{
2070 int result; 2195 int result;
2071 __u16 current_length; 2196 __u16 current_length;
@@ -2073,32 +2198,37 @@ static int sram_write(struct usb_serial *serial, __u16 extAddr, __u16 addr, __u1
2073 2198
2074 dbg("%s - %x, %x, %d", __func__, extAddr, addr, length); 2199 dbg("%s - %x, %x, %d", __func__, extAddr, addr, length);
2075 2200
2076 transfer_buffer = kmalloc (64, GFP_KERNEL); 2201 transfer_buffer = kmalloc(64, GFP_KERNEL);
2077 if (!transfer_buffer) { 2202 if (!transfer_buffer) {
2078 dev_err(&serial->dev->dev, "%s - kmalloc(%d) failed.\n", __func__, 64); 2203 dev_err(&serial->dev->dev, "%s - kmalloc(%d) failed.\n",
2204 __func__, 64);
2079 return -ENOMEM; 2205 return -ENOMEM;
2080 } 2206 }
2081 2207
2082 /* need to split these writes up into 64 byte chunks */ 2208 /* need to split these writes up into 64 byte chunks */
2083 result = 0; 2209 result = 0;
2084 while (length > 0) { 2210 while (length > 0) {
2085 if (length > 64) { 2211 if (length > 64)
2086 current_length = 64; 2212 current_length = 64;
2087 } else { 2213 else
2088 current_length = length; 2214 current_length = length;
2089 } 2215
2090// dbg("%s - writing %x, %x, %d", __func__, extAddr, addr, current_length); 2216/* dbg("%s - writing %x, %x, %d", __func__,
2091 memcpy (transfer_buffer, data, current_length); 2217 extAddr, addr, current_length); */
2092 result = usb_control_msg (serial->dev, usb_sndctrlpipe(serial->dev, 0), USB_REQUEST_ION_WRITE_RAM, 2218 memcpy(transfer_buffer, data, current_length);
2093 0x40, addr, extAddr, transfer_buffer, current_length, 300); 2219 result = usb_control_msg(serial->dev,
2220 usb_sndctrlpipe(serial->dev, 0),
2221 USB_REQUEST_ION_WRITE_RAM,
2222 0x40, addr, extAddr, transfer_buffer,
2223 current_length, 300);
2094 if (result < 0) 2224 if (result < 0)
2095 break; 2225 break;
2096 length -= current_length; 2226 length -= current_length;
2097 addr += current_length; 2227 addr += current_length;
2098 data += current_length; 2228 data += current_length;
2099 } 2229 }
2100 2230
2101 kfree (transfer_buffer); 2231 kfree(transfer_buffer);
2102 return result; 2232 return result;
2103} 2233}
2104 2234
@@ -2110,40 +2240,45 @@ static int sram_write(struct usb_serial *serial, __u16 extAddr, __u16 addr, __u1
2110 * If successful returns the number of bytes written, otherwise it returns 2240 * If successful returns the number of bytes written, otherwise it returns
2111 * a negative error number of the problem. 2241 * a negative error number of the problem.
2112 ****************************************************************************/ 2242 ****************************************************************************/
2113static int rom_write(struct usb_serial *serial, __u16 extAddr, __u16 addr, __u16 length, const __u8 *data) 2243static int rom_write(struct usb_serial *serial, __u16 extAddr, __u16 addr,
2244 __u16 length, const __u8 *data)
2114{ 2245{
2115 int result; 2246 int result;
2116 __u16 current_length; 2247 __u16 current_length;
2117 unsigned char *transfer_buffer; 2248 unsigned char *transfer_buffer;
2118 2249
2119// dbg("%s - %x, %x, %d", __func__, extAddr, addr, length); 2250/* dbg("%s - %x, %x, %d", __func__, extAddr, addr, length); */
2120 2251
2121 transfer_buffer = kmalloc (64, GFP_KERNEL); 2252 transfer_buffer = kmalloc(64, GFP_KERNEL);
2122 if (!transfer_buffer) { 2253 if (!transfer_buffer) {
2123 dev_err(&serial->dev->dev, "%s - kmalloc(%d) failed.\n", __func__, 64); 2254 dev_err(&serial->dev->dev, "%s - kmalloc(%d) failed.\n",
2255 __func__, 64);
2124 return -ENOMEM; 2256 return -ENOMEM;
2125 } 2257 }
2126 2258
2127 /* need to split these writes up into 64 byte chunks */ 2259 /* need to split these writes up into 64 byte chunks */
2128 result = 0; 2260 result = 0;
2129 while (length > 0) { 2261 while (length > 0) {
2130 if (length > 64) { 2262 if (length > 64)
2131 current_length = 64; 2263 current_length = 64;
2132 } else { 2264 else
2133 current_length = length; 2265 current_length = length;
2134 } 2266/* dbg("%s - writing %x, %x, %d", __func__,
2135// dbg("%s - writing %x, %x, %d", __func__, extAddr, addr, current_length); 2267 extAddr, addr, current_length); */
2136 memcpy (transfer_buffer, data, current_length); 2268 memcpy(transfer_buffer, data, current_length);
2137 result = usb_control_msg (serial->dev, usb_sndctrlpipe(serial->dev, 0), USB_REQUEST_ION_WRITE_ROM, 2269 result = usb_control_msg(serial->dev,
2138 0x40, addr, extAddr, transfer_buffer, current_length, 300); 2270 usb_sndctrlpipe(serial->dev, 0),
2271 USB_REQUEST_ION_WRITE_ROM, 0x40,
2272 addr, extAddr,
2273 transfer_buffer, current_length, 300);
2139 if (result < 0) 2274 if (result < 0)
2140 break; 2275 break;
2141 length -= current_length; 2276 length -= current_length;
2142 addr += current_length; 2277 addr += current_length;
2143 data += current_length; 2278 data += current_length;
2144 } 2279 }
2145 2280
2146 kfree (transfer_buffer); 2281 kfree(transfer_buffer);
2147 return result; 2282 return result;
2148} 2283}
2149 2284
@@ -2155,7 +2290,8 @@ static int rom_write(struct usb_serial *serial, __u16 extAddr, __u16 addr, __u16
2155 * If successful returns the number of bytes read, otherwise it returns 2290 * If successful returns the number of bytes read, otherwise it returns
2156 * a negative error number of the problem. 2291 * a negative error number of the problem.
2157 ****************************************************************************/ 2292 ****************************************************************************/
2158static int rom_read (struct usb_serial *serial, __u16 extAddr, __u16 addr, __u16 length, __u8 *data) 2293static int rom_read(struct usb_serial *serial, __u16 extAddr,
2294 __u16 addr, __u16 length, __u8 *data)
2159{ 2295{
2160 int result; 2296 int result;
2161 __u16 current_length; 2297 __u16 current_length;
@@ -2163,32 +2299,36 @@ static int rom_read (struct usb_serial *serial, __u16 extAddr, __u16 addr, __u16
2163 2299
2164 dbg("%s - %x, %x, %d", __func__, extAddr, addr, length); 2300 dbg("%s - %x, %x, %d", __func__, extAddr, addr, length);
2165 2301
2166 transfer_buffer = kmalloc (64, GFP_KERNEL); 2302 transfer_buffer = kmalloc(64, GFP_KERNEL);
2167 if (!transfer_buffer) { 2303 if (!transfer_buffer) {
2168 dev_err(&serial->dev->dev, "%s - kmalloc(%d) failed.\n", __func__, 64); 2304 dev_err(&serial->dev->dev,
2305 "%s - kmalloc(%d) failed.\n", __func__, 64);
2169 return -ENOMEM; 2306 return -ENOMEM;
2170 } 2307 }
2171 2308
2172 /* need to split these reads up into 64 byte chunks */ 2309 /* need to split these reads up into 64 byte chunks */
2173 result = 0; 2310 result = 0;
2174 while (length > 0) { 2311 while (length > 0) {
2175 if (length > 64) { 2312 if (length > 64)
2176 current_length = 64; 2313 current_length = 64;
2177 } else { 2314 else
2178 current_length = length; 2315 current_length = length;
2179 } 2316/* dbg("%s - %x, %x, %d", __func__,
2180// dbg("%s - %x, %x, %d", __func__, extAddr, addr, current_length); 2317 extAddr, addr, current_length); */
2181 result = usb_control_msg (serial->dev, usb_rcvctrlpipe(serial->dev, 0), USB_REQUEST_ION_READ_ROM, 2318 result = usb_control_msg(serial->dev,
2182 0xC0, addr, extAddr, transfer_buffer, current_length, 300); 2319 usb_rcvctrlpipe(serial->dev, 0),
2320 USB_REQUEST_ION_READ_ROM,
2321 0xC0, addr, extAddr, transfer_buffer,
2322 current_length, 300);
2183 if (result < 0) 2323 if (result < 0)
2184 break; 2324 break;
2185 memcpy (data, transfer_buffer, current_length); 2325 memcpy(data, transfer_buffer, current_length);
2186 length -= current_length; 2326 length -= current_length;
2187 addr += current_length; 2327 addr += current_length;
2188 data += current_length; 2328 data += current_length;
2189 } 2329 }
2190 2330
2191 kfree (transfer_buffer); 2331 kfree(transfer_buffer);
2192 return result; 2332 return result;
2193} 2333}
2194 2334
@@ -2197,7 +2337,8 @@ static int rom_read (struct usb_serial *serial, __u16 extAddr, __u16 addr, __u16
2197 * send_iosp_ext_cmd 2337 * send_iosp_ext_cmd
2198 * Is used to send a IOSP message to the Edgeport device 2338 * Is used to send a IOSP message to the Edgeport device
2199 ****************************************************************************/ 2339 ****************************************************************************/
2200static int send_iosp_ext_cmd (struct edgeport_port *edge_port, __u8 command, __u8 param) 2340static int send_iosp_ext_cmd(struct edgeport_port *edge_port,
2341 __u8 command, __u8 param)
2201{ 2342{
2202 unsigned char *buffer; 2343 unsigned char *buffer;
2203 unsigned char *currentCommand; 2344 unsigned char *currentCommand;
@@ -2206,19 +2347,20 @@ static int send_iosp_ext_cmd (struct edgeport_port *edge_port, __u8 command, __u
2206 2347
2207 dbg("%s - %d, %d", __func__, command, param); 2348 dbg("%s - %d, %d", __func__, command, param);
2208 2349
2209 buffer = kmalloc (10, GFP_ATOMIC); 2350 buffer = kmalloc(10, GFP_ATOMIC);
2210 if (!buffer) { 2351 if (!buffer) {
2211 dev_err(&edge_port->port->dev, "%s - kmalloc(%d) failed.\n", __func__, 10); 2352 dev_err(&edge_port->port->dev,
2353 "%s - kmalloc(%d) failed.\n", __func__, 10);
2212 return -ENOMEM; 2354 return -ENOMEM;
2213 } 2355 }
2214 2356
2215 currentCommand = buffer; 2357 currentCommand = buffer;
2216 2358
2217 MAKE_CMD_EXT_CMD (&currentCommand, &length, 2359 MAKE_CMD_EXT_CMD(&currentCommand, &length,
2218 edge_port->port->number - edge_port->port->serial->minor, 2360 edge_port->port->number - edge_port->port->serial->minor,
2219 command, param); 2361 command, param);
2220 2362
2221 status = write_cmd_usb (edge_port, buffer, length); 2363 status = write_cmd_usb(edge_port, buffer, length);
2222 if (status) { 2364 if (status) {
2223 /* something bad happened, let's free up the memory */ 2365 /* something bad happened, let's free up the memory */
2224 kfree(buffer); 2366 kfree(buffer);
@@ -2232,43 +2374,50 @@ static int send_iosp_ext_cmd (struct edgeport_port *edge_port, __u8 command, __u
2232 * write_cmd_usb 2374 * write_cmd_usb
2233 * this function writes the given buffer out to the bulk write endpoint. 2375 * this function writes the given buffer out to the bulk write endpoint.
2234 *****************************************************************************/ 2376 *****************************************************************************/
2235static int write_cmd_usb (struct edgeport_port *edge_port, unsigned char *buffer, int length) 2377static int write_cmd_usb(struct edgeport_port *edge_port,
2378 unsigned char *buffer, int length)
2236{ 2379{
2237 struct edgeport_serial *edge_serial = usb_get_serial_data(edge_port->port->serial); 2380 struct edgeport_serial *edge_serial =
2381 usb_get_serial_data(edge_port->port->serial);
2238 int status = 0; 2382 int status = 0;
2239 struct urb *urb; 2383 struct urb *urb;
2240 int timeout; 2384 int timeout;
2241 2385
2242 usb_serial_debug_data(debug, &edge_port->port->dev, __func__, length, buffer); 2386 usb_serial_debug_data(debug, &edge_port->port->dev,
2387 __func__, length, buffer);
2243 2388
2244 /* Allocate our next urb */ 2389 /* Allocate our next urb */
2245 urb = usb_alloc_urb (0, GFP_ATOMIC); 2390 urb = usb_alloc_urb(0, GFP_ATOMIC);
2246 if (!urb) 2391 if (!urb)
2247 return -ENOMEM; 2392 return -ENOMEM;
2248 2393
2249 atomic_inc(&CmdUrbs); 2394 atomic_inc(&CmdUrbs);
2250 dbg("%s - ALLOCATE URB %p (outstanding %d)", __func__, urb, atomic_read(&CmdUrbs)); 2395 dbg("%s - ALLOCATE URB %p (outstanding %d)",
2396 __func__, urb, atomic_read(&CmdUrbs));
2251 2397
2252 usb_fill_bulk_urb (urb, edge_serial->serial->dev, 2398 usb_fill_bulk_urb(urb, edge_serial->serial->dev,
2253 usb_sndbulkpipe(edge_serial->serial->dev, edge_serial->bulk_out_endpoint), 2399 usb_sndbulkpipe(edge_serial->serial->dev,
2254 buffer, length, edge_bulk_out_cmd_callback, edge_port); 2400 edge_serial->bulk_out_endpoint),
2401 buffer, length, edge_bulk_out_cmd_callback, edge_port);
2255 2402
2256 edge_port->commandPending = true; 2403 edge_port->commandPending = true;
2257 status = usb_submit_urb(urb, GFP_ATOMIC); 2404 status = usb_submit_urb(urb, GFP_ATOMIC);
2258 2405
2259 if (status) { 2406 if (status) {
2260 /* something went wrong */ 2407 /* something went wrong */
2261 dev_err(&edge_port->port->dev, "%s - usb_submit_urb(write command) failed, status = %d\n", __func__, status); 2408 dev_err(&edge_port->port->dev,
2409 "%s - usb_submit_urb(write command) failed, status = %d\n",
2410 __func__, status);
2262 usb_kill_urb(urb); 2411 usb_kill_urb(urb);
2263 usb_free_urb(urb); 2412 usb_free_urb(urb);
2264 atomic_dec(&CmdUrbs); 2413 atomic_dec(&CmdUrbs);
2265 return status; 2414 return status;
2266 } 2415 }
2267 2416
2268 // wait for command to finish 2417 /* wait for command to finish */
2269 timeout = COMMAND_TIMEOUT; 2418 timeout = COMMAND_TIMEOUT;
2270#if 0 2419#if 0
2271 wait_event (&edge_port->wait_command, !edge_port->commandPending); 2420 wait_event(&edge_port->wait_command, !edge_port->commandPending);
2272 2421
2273 if (edge_port->commandPending) { 2422 if (edge_port->commandPending) {
2274 /* command timed out */ 2423 /* command timed out */
@@ -2285,15 +2434,18 @@ static int write_cmd_usb (struct edgeport_port *edge_port, unsigned char *buffer
2285 * this function sends the proper command to change the baud rate of the 2434 * this function sends the proper command to change the baud rate of the
2286 * specified port. 2435 * specified port.
2287 *****************************************************************************/ 2436 *****************************************************************************/
2288static int send_cmd_write_baud_rate (struct edgeport_port *edge_port, int baudRate) 2437static int send_cmd_write_baud_rate(struct edgeport_port *edge_port,
2438 int baudRate)
2289{ 2439{
2290 struct edgeport_serial *edge_serial = usb_get_serial_data(edge_port->port->serial); 2440 struct edgeport_serial *edge_serial =
2441 usb_get_serial_data(edge_port->port->serial);
2291 unsigned char *cmdBuffer; 2442 unsigned char *cmdBuffer;
2292 unsigned char *currCmd; 2443 unsigned char *currCmd;
2293 int cmdLen = 0; 2444 int cmdLen = 0;
2294 int divisor; 2445 int divisor;
2295 int status; 2446 int status;
2296 unsigned char number = edge_port->port->number - edge_port->port->serial->minor; 2447 unsigned char number =
2448 edge_port->port->number - edge_port->port->serial->minor;
2297 2449
2298 if (edge_serial->is_epic && 2450 if (edge_serial->is_epic &&
2299 !edge_serial->epic_descriptor.Supports.IOSPSetBaudRate) { 2451 !edge_serial->epic_descriptor.Supports.IOSPSetBaudRate) {
@@ -2302,36 +2454,40 @@ static int send_cmd_write_baud_rate (struct edgeport_port *edge_port, int baudRa
2302 return 0; 2454 return 0;
2303 } 2455 }
2304 2456
2305 dbg("%s - port = %d, baud = %d", __func__, edge_port->port->number, baudRate); 2457 dbg("%s - port = %d, baud = %d", __func__,
2458 edge_port->port->number, baudRate);
2306 2459
2307 status = calc_baud_rate_divisor (baudRate, &divisor); 2460 status = calc_baud_rate_divisor(baudRate, &divisor);
2308 if (status) { 2461 if (status) {
2309 dev_err(&edge_port->port->dev, "%s - bad baud rate\n", __func__); 2462 dev_err(&edge_port->port->dev, "%s - bad baud rate\n",
2463 __func__);
2310 return status; 2464 return status;
2311 } 2465 }
2312 2466
2313 // Alloc memory for the string of commands. 2467 /* Alloc memory for the string of commands. */
2314 cmdBuffer = kmalloc (0x100, GFP_ATOMIC); 2468 cmdBuffer = kmalloc(0x100, GFP_ATOMIC);
2315 if (!cmdBuffer) { 2469 if (!cmdBuffer) {
2316 dev_err(&edge_port->port->dev, "%s - kmalloc(%d) failed.\n", __func__, 0x100); 2470 dev_err(&edge_port->port->dev,
2471 "%s - kmalloc(%d) failed.\n", __func__, 0x100);
2317 return -ENOMEM; 2472 return -ENOMEM;
2318 } 2473 }
2319 currCmd = cmdBuffer; 2474 currCmd = cmdBuffer;
2320 2475
2321 // Enable access to divisor latch 2476 /* Enable access to divisor latch */
2322 MAKE_CMD_WRITE_REG( &currCmd, &cmdLen, number, LCR, LCR_DL_ENABLE ); 2477 MAKE_CMD_WRITE_REG(&currCmd, &cmdLen, number, LCR, LCR_DL_ENABLE);
2323 2478
2324 // Write the divisor itself 2479 /* Write the divisor itself */
2325 MAKE_CMD_WRITE_REG( &currCmd, &cmdLen, number, DLL, LOW8 (divisor) ); 2480 MAKE_CMD_WRITE_REG(&currCmd, &cmdLen, number, DLL, LOW8(divisor));
2326 MAKE_CMD_WRITE_REG( &currCmd, &cmdLen, number, DLM, HIGH8(divisor) ); 2481 MAKE_CMD_WRITE_REG(&currCmd, &cmdLen, number, DLM, HIGH8(divisor));
2327 2482
2328 // Restore original value to disable access to divisor latch 2483 /* Restore original value to disable access to divisor latch */
2329 MAKE_CMD_WRITE_REG( &currCmd, &cmdLen, number, LCR, edge_port->shadowLCR); 2484 MAKE_CMD_WRITE_REG(&currCmd, &cmdLen, number, LCR,
2485 edge_port->shadowLCR);
2330 2486
2331 status = write_cmd_usb(edge_port, cmdBuffer, cmdLen ); 2487 status = write_cmd_usb(edge_port, cmdBuffer, cmdLen);
2332 if (status) { 2488 if (status) {
2333 /* something bad happened, let's free up the memory */ 2489 /* something bad happened, let's free up the memory */
2334 kfree (cmdBuffer); 2490 kfree(cmdBuffer);
2335 } 2491 }
2336 2492
2337 return status; 2493 return status;
@@ -2343,7 +2499,7 @@ static int send_cmd_write_baud_rate (struct edgeport_port *edge_port, int baudRa
2343 * this function calculates the proper baud rate divisor for the specified 2499 * this function calculates the proper baud rate divisor for the specified
2344 * baud rate. 2500 * baud rate.
2345 *****************************************************************************/ 2501 *****************************************************************************/
2346static int calc_baud_rate_divisor (int baudrate, int *divisor) 2502static int calc_baud_rate_divisor(int baudrate, int *divisor)
2347{ 2503{
2348 int i; 2504 int i;
2349 __u16 custom; 2505 __u16 custom;
@@ -2352,17 +2508,17 @@ static int calc_baud_rate_divisor (int baudrate, int *divisor)
2352 dbg("%s - %d", __func__, baudrate); 2508 dbg("%s - %d", __func__, baudrate);
2353 2509
2354 for (i = 0; i < ARRAY_SIZE(divisor_table); i++) { 2510 for (i = 0; i < ARRAY_SIZE(divisor_table); i++) {
2355 if ( divisor_table[i].BaudRate == baudrate ) { 2511 if (divisor_table[i].BaudRate == baudrate) {
2356 *divisor = divisor_table[i].Divisor; 2512 *divisor = divisor_table[i].Divisor;
2357 return 0; 2513 return 0;
2358 } 2514 }
2359 } 2515 }
2360 2516
2361 // We have tried all of the standard baud rates 2517 /* We have tried all of the standard baud rates
2362 // lets try to calculate the divisor for this baud rate 2518 * lets try to calculate the divisor for this baud rate
2363 // Make sure the baud rate is reasonable 2519 * Make sure the baud rate is reasonable */
2364 if (baudrate > 50 && baudrate < 230400) { 2520 if (baudrate > 50 && baudrate < 230400) {
2365 // get divisor 2521 /* get divisor */
2366 custom = (__u16)((230400L + baudrate/2) / baudrate); 2522 custom = (__u16)((230400L + baudrate/2) / baudrate);
2367 2523
2368 *divisor = custom; 2524 *divisor = custom;
@@ -2377,17 +2533,20 @@ static int calc_baud_rate_divisor (int baudrate, int *divisor)
2377 2533
2378/***************************************************************************** 2534/*****************************************************************************
2379 * send_cmd_write_uart_register 2535 * send_cmd_write_uart_register
2380 * this function builds up a uart register message and sends to to the device. 2536 * this function builds up a uart register message and sends to to the device.
2381 *****************************************************************************/ 2537 *****************************************************************************/
2382static int send_cmd_write_uart_register (struct edgeport_port *edge_port, __u8 regNum, __u8 regValue) 2538static int send_cmd_write_uart_register(struct edgeport_port *edge_port,
2539 __u8 regNum, __u8 regValue)
2383{ 2540{
2384 struct edgeport_serial *edge_serial = usb_get_serial_data(edge_port->port->serial); 2541 struct edgeport_serial *edge_serial =
2542 usb_get_serial_data(edge_port->port->serial);
2385 unsigned char *cmdBuffer; 2543 unsigned char *cmdBuffer;
2386 unsigned char *currCmd; 2544 unsigned char *currCmd;
2387 unsigned long cmdLen = 0; 2545 unsigned long cmdLen = 0;
2388 int status; 2546 int status;
2389 2547
2390 dbg("%s - write to %s register 0x%02x", (regNum == MCR) ? "MCR" : "LCR", __func__, regValue); 2548 dbg("%s - write to %s register 0x%02x",
2549 (regNum == MCR) ? "MCR" : "LCR", __func__, regValue);
2391 2550
2392 if (edge_serial->is_epic && 2551 if (edge_serial->is_epic &&
2393 !edge_serial->epic_descriptor.Supports.IOSPWriteMCR && 2552 !edge_serial->epic_descriptor.Supports.IOSPWriteMCR &&
@@ -2399,27 +2558,26 @@ static int send_cmd_write_uart_register (struct edgeport_port *edge_port, __u8 r
2399 if (edge_serial->is_epic && 2558 if (edge_serial->is_epic &&
2400 !edge_serial->epic_descriptor.Supports.IOSPWriteLCR && 2559 !edge_serial->epic_descriptor.Supports.IOSPWriteLCR &&
2401 regNum == LCR) { 2560 regNum == LCR) {
2402 dbg ("SendCmdWriteUartReg - Not writing to LCR Register"); 2561 dbg("SendCmdWriteUartReg - Not writing to LCR Register");
2403 return 0; 2562 return 0;
2404 } 2563 }
2405 2564
2406 // Alloc memory for the string of commands. 2565 /* Alloc memory for the string of commands. */
2407 cmdBuffer = kmalloc (0x10, GFP_ATOMIC); 2566 cmdBuffer = kmalloc(0x10, GFP_ATOMIC);
2408 if (cmdBuffer == NULL ) { 2567 if (cmdBuffer == NULL)
2409 return -ENOMEM; 2568 return -ENOMEM;
2410 }
2411 2569
2412 currCmd = cmdBuffer; 2570 currCmd = cmdBuffer;
2413 2571
2414 // Build a cmd in the buffer to write the given register 2572 /* Build a cmd in the buffer to write the given register */
2415 MAKE_CMD_WRITE_REG (&currCmd, &cmdLen, 2573 MAKE_CMD_WRITE_REG(&currCmd, &cmdLen,
2416 edge_port->port->number - edge_port->port->serial->minor, 2574 edge_port->port->number - edge_port->port->serial->minor,
2417 regNum, regValue); 2575 regNum, regValue);
2418 2576
2419 status = write_cmd_usb(edge_port, cmdBuffer, cmdLen); 2577 status = write_cmd_usb(edge_port, cmdBuffer, cmdLen);
2420 if (status) { 2578 if (status) {
2421 /* something bad happened, let's free up the memory */ 2579 /* something bad happened, let's free up the memory */
2422 kfree (cmdBuffer); 2580 kfree(cmdBuffer);
2423 } 2581 }
2424 2582
2425 return status; 2583 return status;
@@ -2428,14 +2586,15 @@ static int send_cmd_write_uart_register (struct edgeport_port *edge_port, __u8 r
2428 2586
2429/***************************************************************************** 2587/*****************************************************************************
2430 * change_port_settings 2588 * change_port_settings
2431 * This routine is called to set the UART on the device to match the specified 2589 * This routine is called to set the UART on the device to match the
2432 * new settings. 2590 * specified new settings.
2433 *****************************************************************************/ 2591 *****************************************************************************/
2434 2592
2435static void change_port_settings(struct tty_struct *tty, 2593static void change_port_settings(struct tty_struct *tty,
2436 struct edgeport_port *edge_port, struct ktermios *old_termios) 2594 struct edgeport_port *edge_port, struct ktermios *old_termios)
2437{ 2595{
2438 struct edgeport_serial *edge_serial = usb_get_serial_data(edge_port->port->serial); 2596 struct edgeport_serial *edge_serial =
2597 usb_get_serial_data(edge_port->port->serial);
2439 int baud; 2598 int baud;
2440 unsigned cflag; 2599 unsigned cflag;
2441 __u8 mask = 0xff; 2600 __u8 mask = 0xff;
@@ -2457,11 +2616,23 @@ static void change_port_settings(struct tty_struct *tty,
2457 cflag = tty->termios->c_cflag; 2616 cflag = tty->termios->c_cflag;
2458 2617
2459 switch (cflag & CSIZE) { 2618 switch (cflag & CSIZE) {
2460 case CS5: lData = LCR_BITS_5; mask = 0x1f; dbg("%s - data bits = 5", __func__); break; 2619 case CS5:
2461 case CS6: lData = LCR_BITS_6; mask = 0x3f; dbg("%s - data bits = 6", __func__); break; 2620 lData = LCR_BITS_5; mask = 0x1f;
2462 case CS7: lData = LCR_BITS_7; mask = 0x7f; dbg("%s - data bits = 7", __func__); break; 2621 dbg("%s - data bits = 5", __func__);
2463 default: 2622 break;
2464 case CS8: lData = LCR_BITS_8; dbg("%s - data bits = 8", __func__); break; 2623 case CS6:
2624 lData = LCR_BITS_6; mask = 0x3f;
2625 dbg("%s - data bits = 6", __func__);
2626 break;
2627 case CS7:
2628 lData = LCR_BITS_7; mask = 0x7f;
2629 dbg("%s - data bits = 7", __func__);
2630 break;
2631 default:
2632 case CS8:
2633 lData = LCR_BITS_8;
2634 dbg("%s - data bits = 8", __func__);
2635 break;
2465 } 2636 }
2466 2637
2467 lParity = LCR_PAR_NONE; 2638 lParity = LCR_PAR_NONE;
@@ -2503,7 +2674,8 @@ static void change_port_settings(struct tty_struct *tty,
2503 dbg("%s - RTS/CTS is disabled", __func__); 2674 dbg("%s - RTS/CTS is disabled", __func__);
2504 } 2675 }
2505 2676
2506 /* if we are implementing XON/XOFF, set the start and stop character in the device */ 2677 /* if we are implementing XON/XOFF, set the start and stop character
2678 in the device */
2507 if (I_IXOFF(tty) || I_IXON(tty)) { 2679 if (I_IXOFF(tty) || I_IXON(tty)) {
2508 unsigned char stop_char = STOP_CHAR(tty); 2680 unsigned char stop_char = STOP_CHAR(tty);
2509 unsigned char start_char = START_CHAR(tty); 2681 unsigned char start_char = START_CHAR(tty);
@@ -2511,14 +2683,17 @@ static void change_port_settings(struct tty_struct *tty,
2511 if ((!edge_serial->is_epic) || 2683 if ((!edge_serial->is_epic) ||
2512 ((edge_serial->is_epic) && 2684 ((edge_serial->is_epic) &&
2513 (edge_serial->epic_descriptor.Supports.IOSPSetXChar))) { 2685 (edge_serial->epic_descriptor.Supports.IOSPSetXChar))) {
2514 send_iosp_ext_cmd(edge_port, IOSP_CMD_SET_XON_CHAR, start_char); 2686 send_iosp_ext_cmd(edge_port,
2515 send_iosp_ext_cmd(edge_port, IOSP_CMD_SET_XOFF_CHAR, stop_char); 2687 IOSP_CMD_SET_XON_CHAR, start_char);
2688 send_iosp_ext_cmd(edge_port,
2689 IOSP_CMD_SET_XOFF_CHAR, stop_char);
2516 } 2690 }
2517 2691
2518 /* if we are implementing INBOUND XON/XOFF */ 2692 /* if we are implementing INBOUND XON/XOFF */
2519 if (I_IXOFF(tty)) { 2693 if (I_IXOFF(tty)) {
2520 rxFlow |= IOSP_RX_FLOW_XON_XOFF; 2694 rxFlow |= IOSP_RX_FLOW_XON_XOFF;
2521 dbg("%s - INBOUND XON/XOFF is enabled, XON = %2x, XOFF = %2x", __func__, start_char, stop_char); 2695 dbg("%s - INBOUND XON/XOFF is enabled, XON = %2x, XOFF = %2x",
2696 __func__, start_char, stop_char);
2522 } else { 2697 } else {
2523 dbg("%s - INBOUND XON/XOFF is disabled", __func__); 2698 dbg("%s - INBOUND XON/XOFF is disabled", __func__);
2524 } 2699 }
@@ -2526,7 +2701,8 @@ static void change_port_settings(struct tty_struct *tty,
2526 /* if we are implementing OUTBOUND XON/XOFF */ 2701 /* if we are implementing OUTBOUND XON/XOFF */
2527 if (I_IXON(tty)) { 2702 if (I_IXON(tty)) {
2528 txFlow |= IOSP_TX_FLOW_XON_XOFF; 2703 txFlow |= IOSP_TX_FLOW_XON_XOFF;
2529 dbg("%s - OUTBOUND XON/XOFF is enabled, XON = %2x, XOFF = %2x", __func__, start_char, stop_char); 2704 dbg("%s - OUTBOUND XON/XOFF is enabled, XON = %2x, XOFF = %2x",
2705 __func__, start_char, stop_char);
2530 } else { 2706 } else {
2531 dbg("%s - OUTBOUND XON/XOFF is disabled", __func__); 2707 dbg("%s - OUTBOUND XON/XOFF is disabled", __func__);
2532 } 2708 }
@@ -2549,20 +2725,20 @@ static void change_port_settings(struct tty_struct *tty,
2549 edge_port->validDataMask = mask; 2725 edge_port->validDataMask = mask;
2550 2726
2551 /* Send the updated LCR value to the EdgePort */ 2727 /* Send the updated LCR value to the EdgePort */
2552 status = send_cmd_write_uart_register(edge_port, LCR, edge_port->shadowLCR); 2728 status = send_cmd_write_uart_register(edge_port, LCR,
2553 if (status != 0) { 2729 edge_port->shadowLCR);
2730 if (status != 0)
2554 return; 2731 return;
2555 }
2556 2732
2557 /* set up the MCR register and send it to the EdgePort */ 2733 /* set up the MCR register and send it to the EdgePort */
2558 edge_port->shadowMCR = MCR_MASTER_IE; 2734 edge_port->shadowMCR = MCR_MASTER_IE;
2559 if (cflag & CBAUD) { 2735 if (cflag & CBAUD)
2560 edge_port->shadowMCR |= (MCR_DTR | MCR_RTS); 2736 edge_port->shadowMCR |= (MCR_DTR | MCR_RTS);
2561 } 2737
2562 status = send_cmd_write_uart_register(edge_port, MCR, edge_port->shadowMCR); 2738 status = send_cmd_write_uart_register(edge_port, MCR,
2563 if (status != 0) { 2739 edge_port->shadowMCR);
2740 if (status != 0)
2564 return; 2741 return;
2565 }
2566 2742
2567 /* Determine divisor based on baud rate */ 2743 /* Determine divisor based on baud rate */
2568 baud = tty_get_baud_rate(tty); 2744 baud = tty_get_baud_rate(tty);
@@ -2572,7 +2748,7 @@ static void change_port_settings(struct tty_struct *tty,
2572 } 2748 }
2573 2749
2574 dbg("%s - baud rate = %d", __func__, baud); 2750 dbg("%s - baud rate = %d", __func__, baud);
2575 status = send_cmd_write_baud_rate (edge_port, baud); 2751 status = send_cmd_write_baud_rate(edge_port, baud);
2576 if (status == -1) { 2752 if (status == -1) {
2577 /* Speed change was not possible - put back the old speed */ 2753 /* Speed change was not possible - put back the old speed */
2578 baud = tty_termios_baud_rate(old_termios); 2754 baud = tty_termios_baud_rate(old_termios);
@@ -2589,7 +2765,8 @@ static void change_port_settings(struct tty_struct *tty,
2589 * ASCII range, but it's only for debugging... 2765 * ASCII range, but it's only for debugging...
2590 * NOTE: expects the unicode in LE format 2766 * NOTE: expects the unicode in LE format
2591 ****************************************************************************/ 2767 ****************************************************************************/
2592static void unicode_to_ascii(char *string, int buflen, __le16 *unicode, int unicode_size) 2768static void unicode_to_ascii(char *string, int buflen,
2769 __le16 *unicode, int unicode_size)
2593{ 2770{
2594 int i; 2771 int i;
2595 2772
@@ -2608,75 +2785,99 @@ static void unicode_to_ascii(char *string, int buflen, __le16 *unicode, int unic
2608 2785
2609/**************************************************************************** 2786/****************************************************************************
2610 * get_manufacturing_desc 2787 * get_manufacturing_desc
2611 * reads in the manufacturing descriptor and stores it into the serial 2788 * reads in the manufacturing descriptor and stores it into the serial
2612 * structure. 2789 * structure.
2613 ****************************************************************************/ 2790 ****************************************************************************/
2614static void get_manufacturing_desc (struct edgeport_serial *edge_serial) 2791static void get_manufacturing_desc(struct edgeport_serial *edge_serial)
2615{ 2792{
2616 int response; 2793 int response;
2617 2794
2618 dbg("getting manufacturer descriptor"); 2795 dbg("getting manufacturer descriptor");
2619 2796
2620 response = rom_read (edge_serial->serial, (EDGE_MANUF_DESC_ADDR & 0xffff0000) >> 16, 2797 response = rom_read(edge_serial->serial,
2621 (__u16)(EDGE_MANUF_DESC_ADDR & 0x0000ffff), EDGE_MANUF_DESC_LEN, 2798 (EDGE_MANUF_DESC_ADDR & 0xffff0000) >> 16,
2622 (__u8 *)(&edge_serial->manuf_descriptor)); 2799 (__u16)(EDGE_MANUF_DESC_ADDR & 0x0000ffff),
2800 EDGE_MANUF_DESC_LEN,
2801 (__u8 *)(&edge_serial->manuf_descriptor));
2623 2802
2624 if (response < 1) { 2803 if (response < 1)
2625 dev_err(&edge_serial->serial->dev->dev, "error in getting manufacturer descriptor\n"); 2804 dev_err(&edge_serial->serial->dev->dev,
2626 } else { 2805 "error in getting manufacturer descriptor\n");
2806 else {
2627 char string[30]; 2807 char string[30];
2628 dbg("**Manufacturer Descriptor"); 2808 dbg("**Manufacturer Descriptor");
2629 dbg(" RomSize: %dK", edge_serial->manuf_descriptor.RomSize); 2809 dbg(" RomSize: %dK",
2630 dbg(" RamSize: %dK", edge_serial->manuf_descriptor.RamSize); 2810 edge_serial->manuf_descriptor.RomSize);
2631 dbg(" CpuRev: %d", edge_serial->manuf_descriptor.CpuRev); 2811 dbg(" RamSize: %dK",
2632 dbg(" BoardRev: %d", edge_serial->manuf_descriptor.BoardRev); 2812 edge_serial->manuf_descriptor.RamSize);
2633 dbg(" NumPorts: %d", edge_serial->manuf_descriptor.NumPorts); 2813 dbg(" CpuRev: %d",
2634 dbg(" DescDate: %d/%d/%d", edge_serial->manuf_descriptor.DescDate[0], edge_serial->manuf_descriptor.DescDate[1], edge_serial->manuf_descriptor.DescDate[2]+1900); 2814 edge_serial->manuf_descriptor.CpuRev);
2815 dbg(" BoardRev: %d",
2816 edge_serial->manuf_descriptor.BoardRev);
2817 dbg(" NumPorts: %d",
2818 edge_serial->manuf_descriptor.NumPorts);
2819 dbg(" DescDate: %d/%d/%d",
2820 edge_serial->manuf_descriptor.DescDate[0],
2821 edge_serial->manuf_descriptor.DescDate[1],
2822 edge_serial->manuf_descriptor.DescDate[2]+1900);
2635 unicode_to_ascii(string, sizeof(string), 2823 unicode_to_ascii(string, sizeof(string),
2636 edge_serial->manuf_descriptor.SerialNumber, 2824 edge_serial->manuf_descriptor.SerialNumber,
2637 edge_serial->manuf_descriptor.SerNumLength/2); 2825 edge_serial->manuf_descriptor.SerNumLength/2);
2638 dbg(" SerialNumber: %s", string); 2826 dbg(" SerialNumber: %s", string);
2639 unicode_to_ascii(string, sizeof(string), 2827 unicode_to_ascii(string, sizeof(string),
2640 edge_serial->manuf_descriptor.AssemblyNumber, 2828 edge_serial->manuf_descriptor.AssemblyNumber,
2641 edge_serial->manuf_descriptor.AssemblyNumLength/2); 2829 edge_serial->manuf_descriptor.AssemblyNumLength/2);
2642 dbg(" AssemblyNumber: %s", string); 2830 dbg(" AssemblyNumber: %s", string);
2643 unicode_to_ascii(string, sizeof(string), 2831 unicode_to_ascii(string, sizeof(string),
2644 edge_serial->manuf_descriptor.OemAssyNumber, 2832 edge_serial->manuf_descriptor.OemAssyNumber,
2645 edge_serial->manuf_descriptor.OemAssyNumLength/2); 2833 edge_serial->manuf_descriptor.OemAssyNumLength/2);
2646 dbg(" OemAssyNumber: %s", string); 2834 dbg(" OemAssyNumber: %s", string);
2647 dbg(" UartType: %d", edge_serial->manuf_descriptor.UartType); 2835 dbg(" UartType: %d",
2648 dbg(" IonPid: %d", edge_serial->manuf_descriptor.IonPid); 2836 edge_serial->manuf_descriptor.UartType);
2649 dbg(" IonConfig: %d", edge_serial->manuf_descriptor.IonConfig); 2837 dbg(" IonPid: %d",
2838 edge_serial->manuf_descriptor.IonPid);
2839 dbg(" IonConfig: %d",
2840 edge_serial->manuf_descriptor.IonConfig);
2650 } 2841 }
2651} 2842}
2652 2843
2653 2844
2654/**************************************************************************** 2845/****************************************************************************
2655 * get_boot_desc 2846 * get_boot_desc
2656 * reads in the bootloader descriptor and stores it into the serial 2847 * reads in the bootloader descriptor and stores it into the serial
2657 * structure. 2848 * structure.
2658 ****************************************************************************/ 2849 ****************************************************************************/
2659static void get_boot_desc (struct edgeport_serial *edge_serial) 2850static void get_boot_desc(struct edgeport_serial *edge_serial)
2660{ 2851{
2661 int response; 2852 int response;
2662 2853
2663 dbg("getting boot descriptor"); 2854 dbg("getting boot descriptor");
2664 2855
2665 response = rom_read (edge_serial->serial, (EDGE_BOOT_DESC_ADDR & 0xffff0000) >> 16, 2856 response = rom_read(edge_serial->serial,
2666 (__u16)(EDGE_BOOT_DESC_ADDR & 0x0000ffff), EDGE_BOOT_DESC_LEN, 2857 (EDGE_BOOT_DESC_ADDR & 0xffff0000) >> 16,
2667 (__u8 *)(&edge_serial->boot_descriptor)); 2858 (__u16)(EDGE_BOOT_DESC_ADDR & 0x0000ffff),
2859 EDGE_BOOT_DESC_LEN,
2860 (__u8 *)(&edge_serial->boot_descriptor));
2668 2861
2669 if (response < 1) { 2862 if (response < 1)
2670 dev_err(&edge_serial->serial->dev->dev, "error in getting boot descriptor\n"); 2863 dev_err(&edge_serial->serial->dev->dev,
2671 } else { 2864 "error in getting boot descriptor\n");
2865 else {
2672 dbg("**Boot Descriptor:"); 2866 dbg("**Boot Descriptor:");
2673 dbg(" BootCodeLength: %d", le16_to_cpu(edge_serial->boot_descriptor.BootCodeLength)); 2867 dbg(" BootCodeLength: %d",
2674 dbg(" MajorVersion: %d", edge_serial->boot_descriptor.MajorVersion); 2868 le16_to_cpu(edge_serial->boot_descriptor.BootCodeLength));
2675 dbg(" MinorVersion: %d", edge_serial->boot_descriptor.MinorVersion); 2869 dbg(" MajorVersion: %d",
2676 dbg(" BuildNumber: %d", le16_to_cpu(edge_serial->boot_descriptor.BuildNumber)); 2870 edge_serial->boot_descriptor.MajorVersion);
2677 dbg(" Capabilities: 0x%x", le16_to_cpu(edge_serial->boot_descriptor.Capabilities)); 2871 dbg(" MinorVersion: %d",
2678 dbg(" UConfig0: %d", edge_serial->boot_descriptor.UConfig0); 2872 edge_serial->boot_descriptor.MinorVersion);
2679 dbg(" UConfig1: %d", edge_serial->boot_descriptor.UConfig1); 2873 dbg(" BuildNumber: %d",
2874 le16_to_cpu(edge_serial->boot_descriptor.BuildNumber));
2875 dbg(" Capabilities: 0x%x",
2876 le16_to_cpu(edge_serial->boot_descriptor.Capabilities));
2877 dbg(" UConfig0: %d",
2878 edge_serial->boot_descriptor.UConfig0);
2879 dbg(" UConfig1: %d",
2880 edge_serial->boot_descriptor.UConfig1);
2680 } 2881 }
2681} 2882}
2682 2883
@@ -2685,7 +2886,7 @@ static void get_boot_desc (struct edgeport_serial *edge_serial)
2685 * load_application_firmware 2886 * load_application_firmware
2686 * This is called to load the application firmware to the device 2887 * This is called to load the application firmware to the device
2687 ****************************************************************************/ 2888 ****************************************************************************/
2688static void load_application_firmware (struct edgeport_serial *edge_serial) 2889static void load_application_firmware(struct edgeport_serial *edge_serial)
2689{ 2890{
2690 const struct ihex_binrec *rec; 2891 const struct ihex_binrec *rec;
2691 const struct firmware *fw; 2892 const struct firmware *fw;
@@ -2762,7 +2963,7 @@ static void load_application_firmware (struct edgeport_serial *edge_serial)
2762/**************************************************************************** 2963/****************************************************************************
2763 * edge_startup 2964 * edge_startup
2764 ****************************************************************************/ 2965 ****************************************************************************/
2765static int edge_startup (struct usb_serial *serial) 2966static int edge_startup(struct usb_serial *serial)
2766{ 2967{
2767 struct edgeport_serial *edge_serial; 2968 struct edgeport_serial *edge_serial;
2768 struct edgeport_port *edge_port; 2969 struct edgeport_port *edge_port;
@@ -2804,10 +3005,10 @@ static int edge_startup (struct usb_serial *serial)
2804 sizeof(struct edge_compatibility_bits)); 3005 sizeof(struct edge_compatibility_bits));
2805 3006
2806 /* get the manufacturing descriptor for this device */ 3007 /* get the manufacturing descriptor for this device */
2807 get_manufacturing_desc (edge_serial); 3008 get_manufacturing_desc(edge_serial);
2808 3009
2809 /* get the boot descriptor */ 3010 /* get the boot descriptor */
2810 get_boot_desc (edge_serial); 3011 get_boot_desc(edge_serial);
2811 3012
2812 get_product_info(edge_serial); 3013 get_product_info(edge_serial);
2813 } 3014 }
@@ -2828,41 +3029,43 @@ static int edge_startup (struct usb_serial *serial)
2828 /* If not an EPiC device */ 3029 /* If not an EPiC device */
2829 if (!edge_serial->is_epic) { 3030 if (!edge_serial->is_epic) {
2830 /* now load the application firmware into this device */ 3031 /* now load the application firmware into this device */
2831 load_application_firmware (edge_serial); 3032 load_application_firmware(edge_serial);
2832 3033
2833 dbg("%s - time 2 %ld", __func__, jiffies); 3034 dbg("%s - time 2 %ld", __func__, jiffies);
2834 3035
2835 /* Check current Edgeport EEPROM and update if necessary */ 3036 /* Check current Edgeport EEPROM and update if necessary */
2836 update_edgeport_E2PROM (edge_serial); 3037 update_edgeport_E2PROM(edge_serial);
2837 3038
2838 dbg("%s - time 3 %ld", __func__, jiffies); 3039 dbg("%s - time 3 %ld", __func__, jiffies);
2839 3040
2840 /* set the configuration to use #1 */ 3041 /* set the configuration to use #1 */
2841// dbg("set_configuration 1"); 3042/* dbg("set_configuration 1"); */
2842// usb_set_configuration (dev, 1); 3043/* usb_set_configuration (dev, 1); */
2843 } 3044 }
2844 dbg(" FirmwareMajorVersion %d.%d.%d", 3045 dbg(" FirmwareMajorVersion %d.%d.%d",
2845 edge_serial->product_info.FirmwareMajorVersion, 3046 edge_serial->product_info.FirmwareMajorVersion,
2846 edge_serial->product_info.FirmwareMinorVersion, 3047 edge_serial->product_info.FirmwareMinorVersion,
2847 le16_to_cpu(edge_serial->product_info.FirmwareBuildNumber)); 3048 le16_to_cpu(edge_serial->product_info.FirmwareBuildNumber));
2848 3049
2849 /* we set up the pointers to the endpoints in the edge_open function, 3050 /* we set up the pointers to the endpoints in the edge_open function,
2850 * as the structures aren't created yet. */ 3051 * as the structures aren't created yet. */
2851 3052
2852 /* set up our port private structures */ 3053 /* set up our port private structures */
2853 for (i = 0; i < serial->num_ports; ++i) { 3054 for (i = 0; i < serial->num_ports; ++i) {
2854 edge_port = kmalloc (sizeof(struct edgeport_port), GFP_KERNEL); 3055 edge_port = kmalloc(sizeof(struct edgeport_port), GFP_KERNEL);
2855 if (edge_port == NULL) { 3056 if (edge_port == NULL) {
2856 dev_err(&serial->dev->dev, "%s - Out of memory\n", __func__); 3057 dev_err(&serial->dev->dev, "%s - Out of memory\n",
3058 __func__);
2857 for (j = 0; j < i; ++j) { 3059 for (j = 0; j < i; ++j) {
2858 kfree (usb_get_serial_port_data(serial->port[j])); 3060 kfree(usb_get_serial_port_data(serial->port[j]));
2859 usb_set_serial_port_data(serial->port[j], NULL); 3061 usb_set_serial_port_data(serial->port[j],
3062 NULL);
2860 } 3063 }
2861 usb_set_serial_data(serial, NULL); 3064 usb_set_serial_data(serial, NULL);
2862 kfree(edge_serial); 3065 kfree(edge_serial);
2863 return -ENOMEM; 3066 return -ENOMEM;
2864 } 3067 }
2865 memset (edge_port, 0, sizeof(struct edgeport_port)); 3068 memset(edge_port, 0, sizeof(struct edgeport_port));
2866 spin_lock_init(&edge_port->ep_lock); 3069 spin_lock_init(&edge_port->ep_lock);
2867 edge_port->port = serial->port[i]; 3070 edge_port->port = serial->port[i];
2868 usb_set_serial_port_data(serial->port[i], edge_port); 3071 usb_set_serial_port_data(serial->port[i], edge_port);
@@ -2871,14 +3074,16 @@ static int edge_startup (struct usb_serial *serial)
2871 response = 0; 3074 response = 0;
2872 3075
2873 if (edge_serial->is_epic) { 3076 if (edge_serial->is_epic) {
2874 /* EPIC thing, set up our interrupt polling now and our read urb, so 3077 /* EPIC thing, set up our interrupt polling now and our read
2875 * that the device knows it really is connected. */ 3078 * urb, so that the device knows it really is connected. */
2876 interrupt_in_found = bulk_in_found = bulk_out_found = false; 3079 interrupt_in_found = bulk_in_found = bulk_out_found = false;
2877 for (i = 0; i < serial->interface->altsetting[0].desc.bNumEndpoints; ++i) { 3080 for (i = 0; i < serial->interface->altsetting[0]
3081 .desc.bNumEndpoints; ++i) {
2878 struct usb_endpoint_descriptor *endpoint; 3082 struct usb_endpoint_descriptor *endpoint;
2879 int buffer_size; 3083 int buffer_size;
2880 3084
2881 endpoint = &serial->interface->altsetting[0].endpoint[i].desc; 3085 endpoint = &serial->interface->altsetting[0].
3086 endpoint[i].desc;
2882 buffer_size = le16_to_cpu(endpoint->wMaxPacketSize); 3087 buffer_size = le16_to_cpu(endpoint->wMaxPacketSize);
2883 if (!interrupt_in_found && 3088 if (!interrupt_in_found &&
2884 (usb_endpoint_is_int_in(endpoint))) { 3089 (usb_endpoint_is_int_in(endpoint))) {
@@ -2886,58 +3091,67 @@ static int edge_startup (struct usb_serial *serial)
2886 dbg("found interrupt in"); 3091 dbg("found interrupt in");
2887 3092
2888 /* not set up yet, so do it now */ 3093 /* not set up yet, so do it now */
2889 edge_serial->interrupt_read_urb = usb_alloc_urb(0, GFP_KERNEL); 3094 edge_serial->interrupt_read_urb =
3095 usb_alloc_urb(0, GFP_KERNEL);
2890 if (!edge_serial->interrupt_read_urb) { 3096 if (!edge_serial->interrupt_read_urb) {
2891 err("out of memory"); 3097 err("out of memory");
2892 return -ENOMEM; 3098 return -ENOMEM;
2893 } 3099 }
2894 edge_serial->interrupt_in_buffer = kmalloc(buffer_size, GFP_KERNEL); 3100 edge_serial->interrupt_in_buffer =
3101 kmalloc(buffer_size, GFP_KERNEL);
2895 if (!edge_serial->interrupt_in_buffer) { 3102 if (!edge_serial->interrupt_in_buffer) {
2896 err("out of memory"); 3103 err("out of memory");
2897 usb_free_urb(edge_serial->interrupt_read_urb); 3104 usb_free_urb(edge_serial->interrupt_read_urb);
2898 return -ENOMEM; 3105 return -ENOMEM;
2899 } 3106 }
2900 edge_serial->interrupt_in_endpoint = endpoint->bEndpointAddress; 3107 edge_serial->interrupt_in_endpoint =
3108 endpoint->bEndpointAddress;
2901 3109
2902 /* set up our interrupt urb */ 3110 /* set up our interrupt urb */
2903 usb_fill_int_urb(edge_serial->interrupt_read_urb, 3111 usb_fill_int_urb(
2904 dev, 3112 edge_serial->interrupt_read_urb,
2905 usb_rcvintpipe(dev, endpoint->bEndpointAddress), 3113 dev,
2906 edge_serial->interrupt_in_buffer, 3114 usb_rcvintpipe(dev,
2907 buffer_size, 3115 endpoint->bEndpointAddress),
2908 edge_interrupt_callback, 3116 edge_serial->interrupt_in_buffer,
2909 edge_serial, 3117 buffer_size,
2910 endpoint->bInterval); 3118 edge_interrupt_callback,
3119 edge_serial,
3120 endpoint->bInterval);
2911 3121
2912 interrupt_in_found = true; 3122 interrupt_in_found = true;
2913 } 3123 }
2914 3124
2915 if (!bulk_in_found && 3125 if (!bulk_in_found &&
2916 (usb_endpoint_is_bulk_in(endpoint))) { 3126 (usb_endpoint_is_bulk_in(endpoint))) {
2917 /* we found a bulk in endpoint */ 3127 /* we found a bulk in endpoint */
2918 dbg("found bulk in"); 3128 dbg("found bulk in");
2919 3129
2920 /* not set up yet, so do it now */ 3130 /* not set up yet, so do it now */
2921 edge_serial->read_urb = usb_alloc_urb(0, GFP_KERNEL); 3131 edge_serial->read_urb =
3132 usb_alloc_urb(0, GFP_KERNEL);
2922 if (!edge_serial->read_urb) { 3133 if (!edge_serial->read_urb) {
2923 err("out of memory"); 3134 err("out of memory");
2924 return -ENOMEM; 3135 return -ENOMEM;
2925 } 3136 }
2926 edge_serial->bulk_in_buffer = kmalloc(buffer_size, GFP_KERNEL); 3137 edge_serial->bulk_in_buffer =
3138 kmalloc(buffer_size, GFP_KERNEL);
2927 if (!edge_serial->bulk_in_buffer) { 3139 if (!edge_serial->bulk_in_buffer) {
2928 err ("out of memory"); 3140 err("out of memory");
2929 usb_free_urb(edge_serial->read_urb); 3141 usb_free_urb(edge_serial->read_urb);
2930 return -ENOMEM; 3142 return -ENOMEM;
2931 } 3143 }
2932 edge_serial->bulk_in_endpoint = endpoint->bEndpointAddress; 3144 edge_serial->bulk_in_endpoint =
3145 endpoint->bEndpointAddress;
2933 3146
2934 /* set up our bulk in urb */ 3147 /* set up our bulk in urb */
2935 usb_fill_bulk_urb(edge_serial->read_urb, dev, 3148 usb_fill_bulk_urb(edge_serial->read_urb, dev,
2936 usb_rcvbulkpipe(dev, endpoint->bEndpointAddress), 3149 usb_rcvbulkpipe(dev,
2937 edge_serial->bulk_in_buffer, 3150 endpoint->bEndpointAddress),
2938 le16_to_cpu(endpoint->wMaxPacketSize), 3151 edge_serial->bulk_in_buffer,
2939 edge_bulk_in_callback, 3152 le16_to_cpu(endpoint->wMaxPacketSize),
2940 edge_serial); 3153 edge_bulk_in_callback,
3154 edge_serial);
2941 bulk_in_found = true; 3155 bulk_in_found = true;
2942 } 3156 }
2943 3157
@@ -2945,21 +3159,24 @@ static int edge_startup (struct usb_serial *serial)
2945 (usb_endpoint_is_bulk_out(endpoint))) { 3159 (usb_endpoint_is_bulk_out(endpoint))) {
2946 /* we found a bulk out endpoint */ 3160 /* we found a bulk out endpoint */
2947 dbg("found bulk out"); 3161 dbg("found bulk out");
2948 edge_serial->bulk_out_endpoint = endpoint->bEndpointAddress; 3162 edge_serial->bulk_out_endpoint =
3163 endpoint->bEndpointAddress;
2949 bulk_out_found = true; 3164 bulk_out_found = true;
2950 } 3165 }
2951 } 3166 }
2952 3167
2953 if (!interrupt_in_found || !bulk_in_found || !bulk_out_found) { 3168 if (!interrupt_in_found || !bulk_in_found || !bulk_out_found) {
2954 err ("Error - the proper endpoints were not found!"); 3169 err("Error - the proper endpoints were not found!");
2955 return -ENODEV; 3170 return -ENODEV;
2956 } 3171 }
2957 3172
2958 /* start interrupt read for this edgeport this interrupt will 3173 /* start interrupt read for this edgeport this interrupt will
2959 * continue as long as the edgeport is connected */ 3174 * continue as long as the edgeport is connected */
2960 response = usb_submit_urb(edge_serial->interrupt_read_urb, GFP_KERNEL); 3175 response = usb_submit_urb(edge_serial->interrupt_read_urb,
3176 GFP_KERNEL);
2961 if (response) 3177 if (response)
2962 err("%s - Error %d submitting control urb", __func__, response); 3178 err("%s - Error %d submitting control urb",
3179 __func__, response);
2963 } 3180 }
2964 return response; 3181 return response;
2965} 3182}
@@ -2969,7 +3186,7 @@ static int edge_startup (struct usb_serial *serial)
2969 * edge_shutdown 3186 * edge_shutdown
2970 * This function is called whenever the device is removed from the usb bus. 3187 * This function is called whenever the device is removed from the usb bus.
2971 ****************************************************************************/ 3188 ****************************************************************************/
2972static void edge_shutdown (struct usb_serial *serial) 3189static void edge_shutdown(struct usb_serial *serial)
2973{ 3190{
2974 struct edgeport_serial *edge_serial = usb_get_serial_data(serial); 3191 struct edgeport_serial *edge_serial = usb_get_serial_data(serial);
2975 int i; 3192 int i;
@@ -2977,8 +3194,8 @@ static void edge_shutdown (struct usb_serial *serial)
2977 dbg("%s", __func__); 3194 dbg("%s", __func__);
2978 3195
2979 /* stop reads and writes on all ports */ 3196 /* stop reads and writes on all ports */
2980 for (i=0; i < serial->num_ports; ++i) { 3197 for (i = 0; i < serial->num_ports; ++i) {
2981 kfree (usb_get_serial_port_data(serial->port[i])); 3198 kfree(usb_get_serial_port_data(serial->port[i]));
2982 usb_set_serial_port_data(serial->port[i], NULL); 3199 usb_set_serial_port_data(serial->port[i], NULL);
2983 } 3200 }
2984 /* free up our endpoint stuff */ 3201 /* free up our endpoint stuff */
@@ -3018,7 +3235,7 @@ static int __init edgeport_init(void)
3018 if (retval) 3235 if (retval)
3019 goto failed_epic_device_register; 3236 goto failed_epic_device_register;
3020 retval = usb_register(&io_driver); 3237 retval = usb_register(&io_driver);
3021 if (retval) 3238 if (retval)
3022 goto failed_usb_register; 3239 goto failed_usb_register;
3023 atomic_set(&CmdUrbs, 0); 3240 atomic_set(&CmdUrbs, 0);
3024 info(DRIVER_DESC " " DRIVER_VERSION); 3241 info(DRIVER_DESC " " DRIVER_VERSION);
@@ -3043,19 +3260,19 @@ failed_2port_device_register:
3043 ****************************************************************************/ 3260 ****************************************************************************/
3044static void __exit edgeport_exit (void) 3261static void __exit edgeport_exit (void)
3045{ 3262{
3046 usb_deregister (&io_driver); 3263 usb_deregister(&io_driver);
3047 usb_serial_deregister (&edgeport_2port_device); 3264 usb_serial_deregister(&edgeport_2port_device);
3048 usb_serial_deregister (&edgeport_4port_device); 3265 usb_serial_deregister(&edgeport_4port_device);
3049 usb_serial_deregister (&edgeport_8port_device); 3266 usb_serial_deregister(&edgeport_8port_device);
3050 usb_serial_deregister (&epic_device); 3267 usb_serial_deregister(&epic_device);
3051} 3268}
3052 3269
3053module_init(edgeport_init); 3270module_init(edgeport_init);
3054module_exit(edgeport_exit); 3271module_exit(edgeport_exit);
3055 3272
3056/* Module information */ 3273/* Module information */
3057MODULE_AUTHOR( DRIVER_AUTHOR ); 3274MODULE_AUTHOR(DRIVER_AUTHOR);
3058MODULE_DESCRIPTION( DRIVER_DESC ); 3275MODULE_DESCRIPTION(DRIVER_DESC);
3059MODULE_LICENSE("GPL"); 3276MODULE_LICENSE("GPL");
3060MODULE_FIRMWARE("edgeport/boot.fw"); 3277MODULE_FIRMWARE("edgeport/boot.fw");
3061MODULE_FIRMWARE("edgeport/boot2.fw"); 3278MODULE_FIRMWARE("edgeport/boot2.fw");
generated by cgit v1.2.2 (git 2.25.0) at 2024-12-22 10:33:29 -0500