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authorAlan Cox <alan@redhat.com>2008-07-22 06:16:21 -0400
committerLinus Torvalds <torvalds@linux-foundation.org>2008-07-22 16:03:27 -0400
commit4da1a17dbc5211ac90264cfc4f0e076c8bdc1732 (patch)
tree228c904448774592a2394924ff4540c84c391a42 /drivers/usb/serial/mos7720.c
parent880af9db2c35c5fedaef0de89473f202329934db (diff)
tty-usb-mos7720: 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/mos7720.c')
-rw-r--r--drivers/usb/serial/mos7720.c227
1 files changed, 116 insertions, 111 deletions
diff --git a/drivers/usb/serial/mos7720.c b/drivers/usb/serial/mos7720.c
index d47f0814ce2d..7c4917d77c0a 100644
--- a/drivers/usb/serial/mos7720.c
+++ b/drivers/usb/serial/mos7720.c
@@ -33,7 +33,7 @@
33#include <linux/serial_reg.h> 33#include <linux/serial_reg.h>
34#include <linux/usb.h> 34#include <linux/usb.h>
35#include <linux/usb/serial.h> 35#include <linux/usb/serial.h>
36#include <asm/uaccess.h> 36#include <linux/uaccess.h>
37 37
38 38
39/* 39/*
@@ -64,8 +64,7 @@
64#define URB_TRANSFER_BUFFER_SIZE 32 /* URB Size */ 64#define URB_TRANSFER_BUFFER_SIZE 32 /* URB Size */
65 65
66/* This structure holds all of the local port information */ 66/* This structure holds all of the local port information */
67struct moschip_port 67struct moschip_port {
68{
69 __u8 shadowLCR; /* last LCR value received */ 68 __u8 shadowLCR; /* last LCR value received */
70 __u8 shadowMCR; /* last MCR value received */ 69 __u8 shadowMCR; /* last MCR value received */
71 __u8 shadowMSR; /* last MSR value received */ 70 __u8 shadowMSR; /* last MSR value received */
@@ -76,8 +75,7 @@ struct moschip_port
76}; 75};
77 76
78/* This structure holds all of the individual serial device information */ 77/* This structure holds all of the individual serial device information */
79struct moschip_serial 78struct moschip_serial {
80{
81 int interrupt_started; 79 int interrupt_started;
82}; 80};
83 81
@@ -88,7 +86,7 @@ static int debug;
88#define MOSCHIP_DEVICE_ID_7715 0x7715 86#define MOSCHIP_DEVICE_ID_7715 0x7715
89 87
90static struct usb_device_id moschip_port_id_table [] = { 88static struct usb_device_id moschip_port_id_table [] = {
91 { USB_DEVICE(USB_VENDOR_ID_MOSCHIP,MOSCHIP_DEVICE_ID_7720) }, 89 { USB_DEVICE(USB_VENDOR_ID_MOSCHIP, MOSCHIP_DEVICE_ID_7720) },
92 { } /* terminating entry */ 90 { } /* terminating entry */
93}; 91};
94MODULE_DEVICE_TABLE(usb, moschip_port_id_table); 92MODULE_DEVICE_TABLE(usb, moschip_port_id_table);
@@ -108,7 +106,7 @@ static void mos7720_interrupt_callback(struct urb *urb)
108 __u8 sp1; 106 __u8 sp1;
109 __u8 sp2; 107 __u8 sp2;
110 108
111 dbg("%s"," : Entering\n"); 109 dbg("%s", " : Entering\n");
112 110
113 switch (status) { 111 switch (status) {
114 case 0: 112 case 0:
@@ -208,7 +206,7 @@ static void mos7720_bulk_in_callback(struct urb *urb)
208 206
209 mos7720_port = urb->context; 207 mos7720_port = urb->context;
210 if (!mos7720_port) { 208 if (!mos7720_port) {
211 dbg("%s","NULL mos7720_port pointer \n"); 209 dbg("%s", "NULL mos7720_port pointer \n");
212 return ; 210 return ;
213 } 211 }
214 212
@@ -284,17 +282,16 @@ static int send_mos_cmd(struct usb_serial *serial, __u8 request, __u16 value,
284 __u16 size = 0x0000; 282 __u16 size = 0x0000;
285 283
286 if (value < MOS_MAX_PORT) { 284 if (value < MOS_MAX_PORT) {
287 if (product == MOSCHIP_DEVICE_ID_7715) { 285 if (product == MOSCHIP_DEVICE_ID_7715)
288 value = value*0x100+0x100; 286 value = value*0x100+0x100;
289 } else { 287 else
290 value = value*0x100+0x200; 288 value = value*0x100+0x200;
291 }
292 } else { 289 } else {
293 value = 0x0000; 290 value = 0x0000;
294 if ((product == MOSCHIP_DEVICE_ID_7715) && 291 if ((product == MOSCHIP_DEVICE_ID_7715) &&
295 (index != 0x08)) { 292 (index != 0x08)) {
296 dbg("serial->product== MOSCHIP_DEVICE_ID_7715"); 293 dbg("serial->product== MOSCHIP_DEVICE_ID_7715");
297 //index = 0x01 ; 294 /* index = 0x01 ; */
298 } 295 }
299 } 296 }
300 297
@@ -308,20 +305,20 @@ static int send_mos_cmd(struct usb_serial *serial, __u8 request, __u16 value,
308 request = (__u8)MOS_READ; 305 request = (__u8)MOS_READ;
309 requesttype = (__u8)0xC0; 306 requesttype = (__u8)0xC0;
310 size = 0x01; 307 size = 0x01;
311 pipe = usb_rcvctrlpipe(serial->dev,0); 308 pipe = usb_rcvctrlpipe(serial->dev, 0);
312 } 309 }
313 310
314 status = usb_control_msg(serial->dev, pipe, request, requesttype, 311 status = usb_control_msg(serial->dev, pipe, request, requesttype,
315 value, index, data, size, MOS_WDR_TIMEOUT); 312 value, index, data, size, MOS_WDR_TIMEOUT);
316 313
317 if (status < 0) 314 if (status < 0)
318 dbg("Command Write failed Value %x index %x\n",value,index); 315 dbg("Command Write failed Value %x index %x\n", value, index);
319 316
320 return status; 317 return status;
321} 318}
322 319
323static int mos7720_open(struct tty_struct *tty, 320static int mos7720_open(struct tty_struct *tty,
324 struct usb_serial_port *port, struct file * filp) 321 struct usb_serial_port *port, struct file *filp)
325{ 322{
326 struct usb_serial *serial; 323 struct usb_serial *serial;
327 struct usb_serial_port *port0; 324 struct usb_serial_port *port0;
@@ -352,7 +349,7 @@ static int mos7720_open(struct tty_struct *tty,
352 349
353 /* Initialising the write urb pool */ 350 /* Initialising the write urb pool */
354 for (j = 0; j < NUM_URBS; ++j) { 351 for (j = 0; j < NUM_URBS; ++j) {
355 urb = usb_alloc_urb(0,GFP_KERNEL); 352 urb = usb_alloc_urb(0, GFP_KERNEL);
356 mos7720_port->write_urb_pool[j] = urb; 353 mos7720_port->write_urb_pool[j] = urb;
357 354
358 if (urb == NULL) { 355 if (urb == NULL) {
@@ -386,7 +383,7 @@ static int mos7720_open(struct tty_struct *tty,
386 */ 383 */
387 port_number = port->number - port->serial->minor; 384 port_number = port->number - port->serial->minor;
388 send_mos_cmd(port->serial, MOS_READ, port_number, UART_LSR, &data); 385 send_mos_cmd(port->serial, MOS_READ, port_number, UART_LSR, &data);
389 dbg("SS::%p LSR:%x\n",mos7720_port, data); 386 dbg("SS::%p LSR:%x\n", mos7720_port, data);
390 387
391 dbg("Check:Sending Command .........."); 388 dbg("Check:Sending Command ..........");
392 389
@@ -403,10 +400,10 @@ static int mos7720_open(struct tty_struct *tty,
403 data = 0xCF; 400 data = 0xCF;
404 send_mos_cmd(serial, MOS_WRITE, port_number, 0x02, &data); 401 send_mos_cmd(serial, MOS_WRITE, port_number, 0x02, &data);
405 data = 0x03; 402 data = 0x03;
406 mos7720_port->shadowLCR = data; 403 mos7720_port->shadowLCR = data;
407 send_mos_cmd(serial, MOS_WRITE, port_number, 0x03, &data); 404 send_mos_cmd(serial, MOS_WRITE, port_number, 0x03, &data);
408 data = 0x0b; 405 data = 0x0b;
409 mos7720_port->shadowMCR = data; 406 mos7720_port->shadowMCR = data;
410 send_mos_cmd(serial, MOS_WRITE, port_number, 0x04, &data); 407 send_mos_cmd(serial, MOS_WRITE, port_number, 0x04, &data);
411 data = 0x0b; 408 data = 0x0b;
412 send_mos_cmd(serial, MOS_WRITE, port_number, 0x04, &data); 409 send_mos_cmd(serial, MOS_WRITE, port_number, 0x04, &data);
@@ -421,7 +418,8 @@ static int mos7720_open(struct tty_struct *tty,
421 data = 0x03; 418 data = 0x03;
422 send_mos_cmd(serial, MOS_WRITE, MOS_MAX_PORT, port_number + 1, &data); 419 send_mos_cmd(serial, MOS_WRITE, MOS_MAX_PORT, port_number + 1, &data);
423 data = 0x00; 420 data = 0x00;
424 send_mos_cmd(port->serial, MOS_WRITE, MOS_MAX_PORT, port_number + 1, &data); 421 send_mos_cmd(port->serial, MOS_WRITE, MOS_MAX_PORT,
422 port_number + 1, &data);
425*/ 423*/
426 data = 0x00; 424 data = 0x00;
427 send_mos_cmd(serial, MOS_READ, MOS_MAX_PORT, 0x08, &data); 425 send_mos_cmd(serial, MOS_READ, MOS_MAX_PORT, 0x08, &data);
@@ -430,14 +428,14 @@ static int mos7720_open(struct tty_struct *tty,
430 send_mos_cmd(serial, MOS_WRITE, MOS_MAX_PORT, 0x08, &data); 428 send_mos_cmd(serial, MOS_WRITE, MOS_MAX_PORT, 0x08, &data);
431 429
432 data = 0x83; 430 data = 0x83;
433 mos7720_port->shadowLCR = data; 431 mos7720_port->shadowLCR = data;
434 send_mos_cmd(serial, MOS_WRITE, port_number, 0x03, &data); 432 send_mos_cmd(serial, MOS_WRITE, port_number, 0x03, &data);
435 data = 0x0c; 433 data = 0x0c;
436 send_mos_cmd(serial, MOS_WRITE, port_number, 0x00, &data); 434 send_mos_cmd(serial, MOS_WRITE, port_number, 0x00, &data);
437 data = 0x00; 435 data = 0x00;
438 send_mos_cmd(serial, MOS_WRITE, port_number, 0x01, &data); 436 send_mos_cmd(serial, MOS_WRITE, port_number, 0x01, &data);
439 data = 0x03; 437 data = 0x03;
440 mos7720_port->shadowLCR = data; 438 mos7720_port->shadowLCR = data;
441 send_mos_cmd(serial, MOS_WRITE, port_number, 0x03, &data); 439 send_mos_cmd(serial, MOS_WRITE, port_number, 0x03, &data);
442 data = 0x0c; 440 data = 0x0c;
443 send_mos_cmd(serial, MOS_WRITE, port_number, 0x01, &data); 441 send_mos_cmd(serial, MOS_WRITE, port_number, 0x01, &data);
@@ -464,15 +462,15 @@ static int mos7720_open(struct tty_struct *tty,
464 462
465 /* set up our interrupt urb */ 463 /* set up our interrupt urb */
466 usb_fill_int_urb(port0->interrupt_in_urb, serial->dev, 464 usb_fill_int_urb(port0->interrupt_in_urb, serial->dev,
467 usb_rcvintpipe(serial->dev, 465 usb_rcvintpipe(serial->dev,
468 port->interrupt_in_endpointAddress), 466 port->interrupt_in_endpointAddress),
469 port0->interrupt_in_buffer, 467 port0->interrupt_in_buffer,
470 port0->interrupt_in_urb->transfer_buffer_length, 468 port0->interrupt_in_urb->transfer_buffer_length,
471 mos7720_interrupt_callback, mos7720_port, 469 mos7720_interrupt_callback, mos7720_port,
472 port0->interrupt_in_urb->interval); 470 port0->interrupt_in_urb->interval);
473 471
474 /* start interrupt read for this mos7720 this interrupt * 472 /* start interrupt read for this mos7720 this interrupt *
475 * will continue as long as the mos7720 is connected */ 473 * will continue as long as the mos7720 is connected */
476 dbg("Submit URB over !!!"); 474 dbg("Submit URB over !!!");
477 response = usb_submit_urb(port0->interrupt_in_urb, GFP_KERNEL); 475 response = usb_submit_urb(port0->interrupt_in_urb, GFP_KERNEL);
478 if (response) 476 if (response)
@@ -484,14 +482,14 @@ static int mos7720_open(struct tty_struct *tty,
484 /* set up our bulk in urb */ 482 /* set up our bulk in urb */
485 usb_fill_bulk_urb(port->read_urb, serial->dev, 483 usb_fill_bulk_urb(port->read_urb, serial->dev,
486 usb_rcvbulkpipe(serial->dev, 484 usb_rcvbulkpipe(serial->dev,
487 port->bulk_in_endpointAddress), 485 port->bulk_in_endpointAddress),
488 port->bulk_in_buffer, 486 port->bulk_in_buffer,
489 port->read_urb->transfer_buffer_length, 487 port->read_urb->transfer_buffer_length,
490 mos7720_bulk_in_callback, mos7720_port); 488 mos7720_bulk_in_callback, mos7720_port);
491 response = usb_submit_urb(port->read_urb, GFP_KERNEL); 489 response = usb_submit_urb(port->read_urb, GFP_KERNEL);
492 if (response) 490 if (response)
493 dev_err(&port->dev, 491 dev_err(&port->dev, "%s - Error %d submitting read urb\n",
494 "%s - Error %d submitting read urb\n", __func__, response); 492 __func__, response);
495 493
496 /* initialize our icount structure */ 494 /* initialize our icount structure */
497 memset(&(mos7720_port->icount), 0x00, sizeof(mos7720_port->icount)); 495 memset(&(mos7720_port->icount), 0x00, sizeof(mos7720_port->icount));
@@ -530,7 +528,8 @@ static int mos7720_chars_in_buffer(struct tty_struct *tty)
530 } 528 }
531 529
532 for (i = 0; i < NUM_URBS; ++i) { 530 for (i = 0; i < NUM_URBS; ++i) {
533 if (mos7720_port->write_urb_pool[i] && mos7720_port->write_urb_pool[i]->status == -EINPROGRESS) 531 if (mos7720_port->write_urb_pool[i] &&
532 mos7720_port->write_urb_pool[i]->status == -EINPROGRESS)
534 chars += URB_TRANSFER_BUFFER_SIZE; 533 chars += URB_TRANSFER_BUFFER_SIZE;
535 } 534 }
536 dbg("%s - returns %d", __func__, chars); 535 dbg("%s - returns %d", __func__, chars);
@@ -576,12 +575,12 @@ static void mos7720_close(struct tty_struct *tty,
576 * been disconnected */ 575 * been disconnected */
577 if (!serial->disconnected) { 576 if (!serial->disconnected) {
578 data = 0x00; 577 data = 0x00;
579 send_mos_cmd(serial, MOS_WRITE, port->number - port->serial->minor, 578 send_mos_cmd(serial, MOS_WRITE,
580 0x04, &data); 579 port->number - port->serial->minor, 0x04, &data);
581 580
582 data = 0x00; 581 data = 0x00;
583 send_mos_cmd(serial, MOS_WRITE, port->number - port->serial->minor, 582 send_mos_cmd(serial, MOS_WRITE,
584 0x01, &data); 583 port->number - port->serial->minor, 0x01, &data);
585 } 584 }
586 mutex_unlock(&serial->disc_mutex); 585 mutex_unlock(&serial->disc_mutex);
587 mos7720_port->open = 0; 586 mos7720_port->open = 0;
@@ -592,7 +591,7 @@ static void mos7720_close(struct tty_struct *tty,
592static void mos7720_break(struct tty_struct *tty, int break_state) 591static void mos7720_break(struct tty_struct *tty, int break_state)
593{ 592{
594 struct usb_serial_port *port = tty->driver_data; 593 struct usb_serial_port *port = tty->driver_data;
595 unsigned char data; 594 unsigned char data;
596 struct usb_serial *serial; 595 struct usb_serial *serial;
597 struct moschip_port *mos7720_port; 596 struct moschip_port *mos7720_port;
598 597
@@ -640,7 +639,8 @@ static int mos7720_write_room(struct tty_struct *tty)
640 639
641 /* FIXME: Locking */ 640 /* FIXME: Locking */
642 for (i = 0; i < NUM_URBS; ++i) { 641 for (i = 0; i < NUM_URBS; ++i) {
643 if (mos7720_port->write_urb_pool[i] && mos7720_port->write_urb_pool[i]->status != -EINPROGRESS) 642 if (mos7720_port->write_urb_pool[i] &&
643 mos7720_port->write_urb_pool[i]->status != -EINPROGRESS)
644 room += URB_TRANSFER_BUFFER_SIZE; 644 room += URB_TRANSFER_BUFFER_SIZE;
645 } 645 }
646 646
@@ -675,9 +675,10 @@ static int mos7720_write(struct tty_struct *tty, struct usb_serial_port *port,
675 urb = NULL; 675 urb = NULL;
676 676
677 for (i = 0; i < NUM_URBS; ++i) { 677 for (i = 0; i < NUM_URBS; ++i) {
678 if (mos7720_port->write_urb_pool[i] && mos7720_port->write_urb_pool[i]->status != -EINPROGRESS) { 678 if (mos7720_port->write_urb_pool[i] &&
679 mos7720_port->write_urb_pool[i]->status != -EINPROGRESS) {
679 urb = mos7720_port->write_urb_pool[i]; 680 urb = mos7720_port->write_urb_pool[i];
680 dbg("URB:%d",i); 681 dbg("URB:%d", i);
681 break; 682 break;
682 } 683 }
683 } 684 }
@@ -695,7 +696,7 @@ static int mos7720_write(struct tty_struct *tty, struct usb_serial_port *port,
695 goto exit; 696 goto exit;
696 } 697 }
697 } 698 }
698 transfer_size = min (count, URB_TRANSFER_BUFFER_SIZE); 699 transfer_size = min(count, URB_TRANSFER_BUFFER_SIZE);
699 700
700 memcpy(urb->transfer_buffer, current_position, transfer_size); 701 memcpy(urb->transfer_buffer, current_position, transfer_size);
701 usb_serial_debug_data(debug, &port->dev, __func__, transfer_size, 702 usb_serial_debug_data(debug, &port->dev, __func__, transfer_size,
@@ -704,12 +705,12 @@ static int mos7720_write(struct tty_struct *tty, struct usb_serial_port *port,
704 /* fill urb with data and submit */ 705 /* fill urb with data and submit */
705 usb_fill_bulk_urb(urb, serial->dev, 706 usb_fill_bulk_urb(urb, serial->dev,
706 usb_sndbulkpipe(serial->dev, 707 usb_sndbulkpipe(serial->dev,
707 port->bulk_out_endpointAddress), 708 port->bulk_out_endpointAddress),
708 urb->transfer_buffer, transfer_size, 709 urb->transfer_buffer, transfer_size,
709 mos7720_bulk_out_data_callback, mos7720_port); 710 mos7720_bulk_out_data_callback, mos7720_port);
710 711
711 /* send it down the pipe */ 712 /* send it down the pipe */
712 status = usb_submit_urb(urb,GFP_ATOMIC); 713 status = usb_submit_urb(urb, GFP_ATOMIC);
713 if (status) { 714 if (status) {
714 err("%s - usb_submit_urb(write bulk) failed with status = %d", 715 err("%s - usb_submit_urb(write bulk) failed with status = %d",
715 __func__, status); 716 __func__, status);
@@ -810,9 +811,9 @@ static int set_higher_rates(struct moschip_port *mos7720_port,
810 port = mos7720_port->port; 811 port = mos7720_port->port;
811 serial = port->serial; 812 serial = port->serial;
812 813
813 /*********************************************** 814 /***********************************************
814 * Init Sequence for higher rates 815 * Init Sequence for higher rates
815 ***********************************************/ 816 ***********************************************/
816 dbg("Sending Setting Commands .........."); 817 dbg("Sending Setting Commands ..........");
817 port_number = port->number - port->serial->minor; 818 port_number = port->number - port->serial->minor;
818 819
@@ -823,7 +824,7 @@ static int set_higher_rates(struct moschip_port *mos7720_port,
823 data = 0x0CF; 824 data = 0x0CF;
824 send_mos_cmd(serial, MOS_WRITE, port->number, 0x02, &data); 825 send_mos_cmd(serial, MOS_WRITE, port->number, 0x02, &data);
825 data = 0x00b; 826 data = 0x00b;
826 mos7720_port->shadowMCR = data; 827 mos7720_port->shadowMCR = data;
827 send_mos_cmd(serial, MOS_WRITE, port_number, 0x04, &data); 828 send_mos_cmd(serial, MOS_WRITE, port_number, 0x04, &data);
828 data = 0x00b; 829 data = 0x00b;
829 send_mos_cmd(serial, MOS_WRITE, port_number, 0x04, &data); 830 send_mos_cmd(serial, MOS_WRITE, port_number, 0x04, &data);
@@ -834,12 +835,12 @@ static int set_higher_rates(struct moschip_port *mos7720_port,
834 send_mos_cmd(serial, MOS_WRITE, MOS_MAX_PORT, 0x08, &data); 835 send_mos_cmd(serial, MOS_WRITE, MOS_MAX_PORT, 0x08, &data);
835 836
836 837
837 /*********************************************** 838 /***********************************************
838 * Set for higher rates * 839 * Set for higher rates *
839 ***********************************************/ 840 ***********************************************/
840 841
841 data = baud * 0x10; 842 data = baud * 0x10;
842 send_mos_cmd(serial, MOS_WRITE, MOS_MAX_PORT, port_number + 1,&data); 843 send_mos_cmd(serial, MOS_WRITE, MOS_MAX_PORT, port_number + 1, &data);
843 844
844 data = 0x003; 845 data = 0x003;
845 send_mos_cmd(serial, MOS_READ, MOS_MAX_PORT, 0x08, &data); 846 send_mos_cmd(serial, MOS_READ, MOS_MAX_PORT, 0x08, &data);
@@ -847,34 +848,33 @@ static int set_higher_rates(struct moschip_port *mos7720_port,
847 send_mos_cmd(serial, MOS_WRITE, MOS_MAX_PORT, 0x08, &data); 848 send_mos_cmd(serial, MOS_WRITE, MOS_MAX_PORT, 0x08, &data);
848 849
849 data = 0x02b; 850 data = 0x02b;
850 mos7720_port->shadowMCR = data; 851 mos7720_port->shadowMCR = data;
851 send_mos_cmd(serial, MOS_WRITE, port_number, 0x04, &data); 852 send_mos_cmd(serial, MOS_WRITE, port_number, 0x04, &data);
852 data = 0x02b; 853 data = 0x02b;
853 send_mos_cmd(serial, MOS_WRITE, port_number, 0x04, &data); 854 send_mos_cmd(serial, MOS_WRITE, port_number, 0x04, &data);
854 855
855 /*********************************************** 856 /***********************************************
856 * Set DLL/DLM 857 * Set DLL/DLM
857 ***********************************************/ 858 ***********************************************/
858 859
859 data = mos7720_port->shadowLCR | UART_LCR_DLAB; 860 data = mos7720_port->shadowLCR | UART_LCR_DLAB;
860 mos7720_port->shadowLCR = data; 861 mos7720_port->shadowLCR = data;
861 send_mos_cmd(serial, MOS_WRITE, port_number, 0x03, &data); 862 send_mos_cmd(serial, MOS_WRITE, port_number, 0x03, &data);
862 863
863 data = 0x001; /* DLL */ 864 data = 0x001; /* DLL */
864 send_mos_cmd(serial, MOS_WRITE, port_number, 0x00, &data); 865 send_mos_cmd(serial, MOS_WRITE, port_number, 0x00, &data);
865 data = 0x000; /* DLM */ 866 data = 0x000; /* DLM */
866 send_mos_cmd(serial, MOS_WRITE, port_number, 0x01, &data); 867 send_mos_cmd(serial, MOS_WRITE, port_number, 0x01, &data);
867 868
868 data = mos7720_port->shadowLCR & ~UART_LCR_DLAB; 869 data = mos7720_port->shadowLCR & ~UART_LCR_DLAB;
869 mos7720_port->shadowLCR = data; 870 mos7720_port->shadowLCR = data;
870 send_mos_cmd(serial, MOS_WRITE, port_number, 0x03, &data); 871 send_mos_cmd(serial, MOS_WRITE, port_number, 0x03, &data);
871 872
872 return 0; 873 return 0;
873} 874}
874 875
875/* baud rate information */ 876/* baud rate information */
876struct divisor_table_entry 877struct divisor_table_entry {
877{
878 __u32 baudrate; 878 __u32 baudrate;
879 __u16 divisor; 879 __u16 divisor;
880}; 880};
@@ -923,8 +923,8 @@ static int calc_baud_rate_divisor(int baudrate, int *divisor)
923 } 923 }
924 } 924 }
925 925
926 /* After trying for all the standard baud rates * 926 /* After trying for all the standard baud rates *
927 * Try calculating the divisor for this baud rate */ 927 * Try calculating the divisor for this baud rate */
928 if (baudrate > 75 && baudrate < 230400) { 928 if (baudrate > 75 && baudrate < 230400) {
929 /* get the divisor */ 929 /* get the divisor */
930 custom = (__u16)(230400L / baudrate); 930 custom = (__u16)(230400L / baudrate);
@@ -936,7 +936,7 @@ static int calc_baud_rate_divisor(int baudrate, int *divisor)
936 custom++; 936 custom++;
937 *divisor = custom; 937 *divisor = custom;
938 938
939 dbg("Baud %d = %d",baudrate, custom); 939 dbg("Baud %d = %d", baudrate, custom);
940 return 0; 940 return 0;
941 } 941 }
942 942
@@ -970,29 +970,29 @@ static int send_cmd_write_baud_rate(struct moschip_port *mos7720_port,
970 number = port->number - port->serial->minor; 970 number = port->number - port->serial->minor;
971 dbg("%s - port = %d, baud = %d", __func__, port->number, baudrate); 971 dbg("%s - port = %d, baud = %d", __func__, port->number, baudrate);
972 972
973 /* Calculate the Divisor */ 973 /* Calculate the Divisor */
974 status = calc_baud_rate_divisor(baudrate, &divisor); 974 status = calc_baud_rate_divisor(baudrate, &divisor);
975 if (status) { 975 if (status) {
976 err("%s - bad baud rate", __func__); 976 err("%s - bad baud rate", __func__);
977 return status; 977 return status;
978 } 978 }
979 979
980 /* Enable access to divisor latch */ 980 /* Enable access to divisor latch */
981 data = mos7720_port->shadowLCR | UART_LCR_DLAB; 981 data = mos7720_port->shadowLCR | UART_LCR_DLAB;
982 mos7720_port->shadowLCR = data; 982 mos7720_port->shadowLCR = data;
983 send_mos_cmd(serial, MOS_WRITE, number, UART_LCR, &data); 983 send_mos_cmd(serial, MOS_WRITE, number, UART_LCR, &data);
984 984
985 /* Write the divisor */ 985 /* Write the divisor */
986 data = ((unsigned char)(divisor & 0xff)); 986 data = ((unsigned char)(divisor & 0xff));
987 send_mos_cmd(serial, MOS_WRITE, number, 0x00, &data); 987 send_mos_cmd(serial, MOS_WRITE, number, 0x00, &data);
988 988
989 data = ((unsigned char)((divisor & 0xff00) >> 8)); 989 data = ((unsigned char)((divisor & 0xff00) >> 8));
990 send_mos_cmd(serial, MOS_WRITE, number, 0x01, &data); 990 send_mos_cmd(serial, MOS_WRITE, number, 0x01, &data);
991 991
992 /* Disable access to divisor latch */ 992 /* Disable access to divisor latch */
993 data = mos7720_port->shadowLCR & ~UART_LCR_DLAB; 993 data = mos7720_port->shadowLCR & ~UART_LCR_DLAB;
994 mos7720_port->shadowLCR = data; 994 mos7720_port->shadowLCR = data;
995 send_mos_cmd(serial, MOS_WRITE, number, 0x03, &data); 995 send_mos_cmd(serial, MOS_WRITE, number, 0x03, &data);
996 996
997 return status; 997 return status;
998} 998}
@@ -1095,29 +1095,31 @@ static void change_port_settings(struct tty_struct *tty,
1095#define LCR_PAR_MASK 0x38 /* Mask for parity field */ 1095#define LCR_PAR_MASK 0x38 /* Mask for parity field */
1096 1096
1097 /* Update the LCR with the correct value */ 1097 /* Update the LCR with the correct value */
1098 mos7720_port->shadowLCR &= ~(LCR_BITS_MASK | LCR_STOP_MASK | LCR_PAR_MASK); 1098 mos7720_port->shadowLCR &=
1099 ~(LCR_BITS_MASK | LCR_STOP_MASK | LCR_PAR_MASK);
1099 mos7720_port->shadowLCR |= (lData | lParity | lStop); 1100 mos7720_port->shadowLCR |= (lData | lParity | lStop);
1100 1101
1101 1102
1102 /* Disable Interrupts */ 1103 /* Disable Interrupts */
1103 data = 0x00; 1104 data = 0x00;
1104 send_mos_cmd(serial,MOS_WRITE,port->number - port->serial->minor, UART_IER, &data); 1105 send_mos_cmd(serial, MOS_WRITE, port->number - port->serial->minor,
1106 UART_IER, &data);
1105 1107
1106 data = 0x00; 1108 data = 0x00;
1107 send_mos_cmd(serial, MOS_WRITE, port_number, UART_FCR, &data); 1109 send_mos_cmd(serial, MOS_WRITE, port_number, UART_FCR, &data);
1108 1110
1109 data = 0xcf; 1111 data = 0xcf;
1110 send_mos_cmd(serial, MOS_WRITE, port_number, UART_FCR, &data); 1112 send_mos_cmd(serial, MOS_WRITE, port_number, UART_FCR, &data);
1111 1113
1112 /* Send the updated LCR value to the mos7720 */ 1114 /* Send the updated LCR value to the mos7720 */
1113 data = mos7720_port->shadowLCR; 1115 data = mos7720_port->shadowLCR;
1114 send_mos_cmd(serial, MOS_WRITE, port_number, UART_LCR, &data); 1116 send_mos_cmd(serial, MOS_WRITE, port_number, UART_LCR, &data);
1115 1117
1116 data = 0x00b; 1118 data = 0x00b;
1117 mos7720_port->shadowMCR = data; 1119 mos7720_port->shadowMCR = data;
1118 send_mos_cmd(serial, MOS_WRITE, port_number, 0x04, &data); 1120 send_mos_cmd(serial, MOS_WRITE, port_number, 0x04, &data);
1119 data = 0x00b; 1121 data = 0x00b;
1120 send_mos_cmd(serial, MOS_WRITE, port_number, 0x04, &data); 1122 send_mos_cmd(serial, MOS_WRITE, port_number, 0x04, &data);
1121 1123
1122 /* set up the MCR register and send it to the mos7720 */ 1124 /* set up the MCR register and send it to the mos7720 */
1123 mos7720_port->shadowMCR = UART_MCR_OUT2; 1125 mos7720_port->shadowMCR = UART_MCR_OUT2;
@@ -1126,9 +1128,8 @@ static void change_port_settings(struct tty_struct *tty,
1126 1128
1127 if (cflag & CRTSCTS) { 1129 if (cflag & CRTSCTS) {
1128 mos7720_port->shadowMCR |= (UART_MCR_XONANY); 1130 mos7720_port->shadowMCR |= (UART_MCR_XONANY);
1129 1131 /* To set hardware flow control to the specified *
1130 /* To set hardware flow control to the specified * 1132 * serial port, in SP1/2_CONTROL_REG */
1131 * serial port, in SP1/2_CONTROL_REG */
1132 if (port->number) { 1133 if (port->number) {
1133 data = 0x001; 1134 data = 0x001;
1134 send_mos_cmd(serial, MOS_WRITE, MOS_MAX_PORT, 1135 send_mos_cmd(serial, MOS_WRITE, MOS_MAX_PORT,
@@ -1207,7 +1208,7 @@ static void mos7720_set_termios(struct tty_struct *tty,
1207 return; 1208 return;
1208 } 1209 }
1209 1210
1210 dbg("%s\n","setting termios - ASPIRE"); 1211 dbg("%s\n", "setting termios - ASPIRE");
1211 1212
1212 cflag = tty->termios->c_cflag; 1213 cflag = tty->termios->c_cflag;
1213 1214
@@ -1224,12 +1225,12 @@ static void mos7720_set_termios(struct tty_struct *tty,
1224 /* change the port settings to the new ones specified */ 1225 /* change the port settings to the new ones specified */
1225 change_port_settings(tty, mos7720_port, old_termios); 1226 change_port_settings(tty, mos7720_port, old_termios);
1226 1227
1227 if(!port->read_urb) { 1228 if (!port->read_urb) {
1228 dbg("%s","URB KILLED !!!!!\n"); 1229 dbg("%s", "URB KILLED !!!!!\n");
1229 return; 1230 return;
1230 } 1231 }
1231 1232
1232 if(port->read_urb->status != -EINPROGRESS) { 1233 if (port->read_urb->status != -EINPROGRESS) {
1233 port->read_urb->dev = serial->dev; 1234 port->read_urb->dev = serial->dev;
1234 status = usb_submit_urb(port->read_urb, GFP_ATOMIC); 1235 status = usb_submit_urb(port->read_urb, GFP_ATOMIC);
1235 if (status) 1236 if (status)
@@ -1249,8 +1250,8 @@ static void mos7720_set_termios(struct tty_struct *tty,
1249 * transmit holding register is empty. This functionality 1250 * transmit holding register is empty. This functionality
1250 * allows an RS485 driver to be written in user space. 1251 * allows an RS485 driver to be written in user space.
1251 */ 1252 */
1252static int get_lsr_info(struct tty_struct *tty, struct moschip_port *mos7720_port, 1253static int get_lsr_info(struct tty_struct *tty,
1253 unsigned int __user *value) 1254 struct moschip_port *mos7720_port, unsigned int __user *value)
1254{ 1255{
1255 int count; 1256 int count;
1256 unsigned int result = 0; 1257 unsigned int result = 0;
@@ -1301,7 +1302,7 @@ static int set_modem_info(struct moschip_port *mos7720_port, unsigned int cmd,
1301 if (mos7720_port == NULL) 1302 if (mos7720_port == NULL)
1302 return -1; 1303 return -1;
1303 1304
1304 port = (struct usb_serial_port*)mos7720_port->port; 1305 port = (struct usb_serial_port *)mos7720_port->port;
1305 mcr = mos7720_port->shadowMCR; 1306 mcr = mos7720_port->shadowMCR;
1306 1307
1307 if (copy_from_user(&arg, value, sizeof(int))) 1308 if (copy_from_user(&arg, value, sizeof(int)))
@@ -1382,7 +1383,7 @@ static int get_serial_info(struct moschip_port *mos7720_port,
1382 tmp.port = mos7720_port->port->number; 1383 tmp.port = mos7720_port->port->number;
1383 tmp.irq = 0; 1384 tmp.irq = 0;
1384 tmp.flags = ASYNC_SKIP_TEST | ASYNC_AUTO_IRQ; 1385 tmp.flags = ASYNC_SKIP_TEST | ASYNC_AUTO_IRQ;
1385 tmp.xmit_fifo_size = NUM_URBS * URB_TRANSFER_BUFFER_SIZE; 1386 tmp.xmit_fifo_size = NUM_URBS * URB_TRANSFER_BUFFER_SIZE;
1386 tmp.baud_base = 9600; 1387 tmp.baud_base = 9600;
1387 tmp.close_delay = 5*HZ; 1388 tmp.close_delay = 5*HZ;
1388 tmp.closing_wait = 30*HZ; 1389 tmp.closing_wait = 30*HZ;
@@ -1417,15 +1418,16 @@ static int mos7720_ioctl(struct tty_struct *tty, struct file *file,
1417 1418
1418 case TIOCSERGETLSR: 1419 case TIOCSERGETLSR:
1419 dbg("%s (%d) TIOCSERGETLSR", __func__, port->number); 1420 dbg("%s (%d) TIOCSERGETLSR", __func__, port->number);
1420 return get_lsr_info(tty, mos7720_port, (unsigned int __user *)arg); 1421 return get_lsr_info(tty, mos7720_port,
1422 (unsigned int __user *)arg);
1421 return 0; 1423 return 0;
1422 1424
1423 /* FIXME: These should be using the mode methods */ 1425 /* FIXME: These should be using the mode methods */
1424 case TIOCMBIS: 1426 case TIOCMBIS:
1425 case TIOCMBIC: 1427 case TIOCMBIC:
1426 case TIOCMSET: 1428 case TIOCMSET:
1427 dbg("%s (%d) TIOCMSET/TIOCMBIC/TIOCMSET", __func__, 1429 dbg("%s (%d) TIOCMSET/TIOCMBIC/TIOCMSET",
1428 port->number); 1430 __func__, port->number);
1429 return set_modem_info(mos7720_port, cmd, 1431 return set_modem_info(mos7720_port, cmd,
1430 (unsigned int __user *)arg); 1432 (unsigned int __user *)arg);
1431 1433
@@ -1452,7 +1454,7 @@ static int mos7720_ioctl(struct tty_struct *tty, struct file *file,
1452 if (((arg & TIOCM_RNG) && (cnow.rng != cprev.rng)) || 1454 if (((arg & TIOCM_RNG) && (cnow.rng != cprev.rng)) ||
1453 ((arg & TIOCM_DSR) && (cnow.dsr != cprev.dsr)) || 1455 ((arg & TIOCM_DSR) && (cnow.dsr != cprev.dsr)) ||
1454 ((arg & TIOCM_CD) && (cnow.dcd != cprev.dcd)) || 1456 ((arg & TIOCM_CD) && (cnow.dcd != cprev.dcd)) ||
1455 ((arg & TIOCM_CTS) && (cnow.cts != cprev.cts)) ) { 1457 ((arg & TIOCM_CTS) && (cnow.cts != cprev.cts))) {
1456 return 0; 1458 return 0;
1457 } 1459 }
1458 cprev = cnow; 1460 cprev = cnow;
@@ -1475,7 +1477,7 @@ static int mos7720_ioctl(struct tty_struct *tty, struct file *file,
1475 icount.buf_overrun = cnow.buf_overrun; 1477 icount.buf_overrun = cnow.buf_overrun;
1476 1478
1477 dbg("%s (%d) TIOCGICOUNT RX=%d, TX=%d", __func__, 1479 dbg("%s (%d) TIOCGICOUNT RX=%d, TX=%d", __func__,
1478 port->number, icount.rx, icount.tx ); 1480 port->number, icount.rx, icount.tx);
1479 if (copy_to_user((void __user *)arg, &icount, sizeof(icount))) 1481 if (copy_to_user((void __user *)arg, &icount, sizeof(icount)))
1480 return -EFAULT; 1482 return -EFAULT;
1481 return 0; 1483 return 0;
@@ -1526,7 +1528,8 @@ static int mos7720_startup(struct usb_serial *serial)
1526 /* Initialize all port interrupt end point to port 0 int 1528 /* Initialize all port interrupt end point to port 0 int
1527 * endpoint. Our device has only one interrupt endpoint 1529 * endpoint. Our device has only one interrupt endpoint
1528 * comman to all ports */ 1530 * comman to all ports */
1529 serial->port[i]->interrupt_in_endpointAddress = serial->port[0]->interrupt_in_endpointAddress; 1531 serial->port[i]->interrupt_in_endpointAddress =
1532 serial->port[0]->interrupt_in_endpointAddress;
1530 1533
1531 mos7720_port->port = serial->port[i]; 1534 mos7720_port->port = serial->port[i];
1532 usb_set_serial_port_data(serial->port[i], mos7720_port); 1535 usb_set_serial_port_data(serial->port[i], mos7720_port);
@@ -1538,13 +1541,15 @@ static int mos7720_startup(struct usb_serial *serial)
1538 1541
1539 /* setting configuration feature to one */ 1542 /* setting configuration feature to one */
1540 usb_control_msg(serial->dev, usb_sndctrlpipe(serial->dev, 0), 1543 usb_control_msg(serial->dev, usb_sndctrlpipe(serial->dev, 0),
1541 (__u8)0x03, 0x00,0x01,0x00, NULL, 0x00, 5*HZ); 1544 (__u8)0x03, 0x00, 0x01, 0x00, NULL, 0x00, 5*HZ);
1542 1545
1543 send_mos_cmd(serial,MOS_READ,0x00, UART_LSR, &data); // LSR For Port 1 1546 /* LSR For Port 1 */
1544 dbg("LSR:%x",data); 1547 send_mos_cmd(serial, MOS_READ, 0x00, UART_LSR, &data);
1548 dbg("LSR:%x", data);
1545 1549
1546 send_mos_cmd(serial,MOS_READ,0x01, UART_LSR, &data); // LSR For Port 2 1550 /* LSR For Port 2 */
1547 dbg("LSR:%x",data); 1551 send_mos_cmd(serial, MOS_READ, 0x01, UART_LSR, &data);
1552 dbg("LSR:%x", data);
1548 1553
1549 return 0; 1554 return 0;
1550} 1555}
@@ -1554,7 +1559,7 @@ static void mos7720_shutdown(struct usb_serial *serial)
1554 int i; 1559 int i;
1555 1560
1556 /* free private structure allocated for serial port */ 1561 /* free private structure allocated for serial port */
1557 for (i=0; i < serial->num_ports; ++i) { 1562 for (i = 0; i < serial->num_ports; ++i) {
1558 kfree(usb_get_serial_port_data(serial->port[i])); 1563 kfree(usb_get_serial_port_data(serial->port[i]));
1559 usb_set_serial_port_data(serial->port[i], NULL); 1564 usb_set_serial_port_data(serial->port[i], NULL);
1560 } 1565 }
@@ -1634,8 +1639,8 @@ module_init(moschip7720_init);
1634module_exit(moschip7720_exit); 1639module_exit(moschip7720_exit);
1635 1640
1636/* Module information */ 1641/* Module information */
1637MODULE_AUTHOR( DRIVER_AUTHOR ); 1642MODULE_AUTHOR(DRIVER_AUTHOR);
1638MODULE_DESCRIPTION( DRIVER_DESC ); 1643MODULE_DESCRIPTION(DRIVER_DESC);
1639MODULE_LICENSE("GPL"); 1644MODULE_LICENSE("GPL");
1640 1645
1641module_param(debug, bool, S_IRUGO | S_IWUSR); 1646module_param(debug, bool, S_IRUGO | S_IWUSR);