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authorJiri Slaby <jirislaby@gmail.com>2006-12-08 05:38:13 -0500
committerLinus Torvalds <torvalds@woody.osdl.org>2006-12-08 11:28:53 -0500
commit3306ce3d0554e2e59cc429b7133e17e1513307cb (patch)
treeecd4ea2522b6afdcf9e263fc36aef4f3e5327f7a /drivers/char
parent771f2d1af80b6b8f3b23203d7d6b93bbe93435a8 (diff)
[PATCH] Char: mxser_new, upgrade to 1.9.1
Change cloned experimental driver according to original 1.9.1 moxa driver. Some int->ulong conversions, outb ~UART_IER_THRI constant. Remove commented stuff. I also added printk line with info, if somebody wants to test it, he may contact me as I can potentially debug the driver with him or just to confirm it works properly. Signed-off-by: Jiri Slaby <jirislaby@gmail.com> Cc: Alan Cox <alan@lxorguk.ukuu.org.uk> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Diffstat (limited to 'drivers/char')
-rw-r--r--drivers/char/mxser_new.c396
1 files changed, 192 insertions, 204 deletions
diff --git a/drivers/char/mxser_new.c b/drivers/char/mxser_new.c
index 993e3a26c406..befff0548da3 100644
--- a/drivers/char/mxser_new.c
+++ b/drivers/char/mxser_new.c
@@ -1,7 +1,7 @@
1/* 1/*
2 * mxser.c -- MOXA Smartio/Industio family multiport serial driver. 2 * mxser.c -- MOXA Smartio/Industio family multiport serial driver.
3 * 3 *
4 * Copyright (C) 1999-2001 Moxa Technologies (support@moxa.com.tw). 4 * Copyright (C) 1999-2006 Moxa Technologies (support@moxa.com.tw).
5 * 5 *
6 * This code is loosely based on the Linux serial driver, written by 6 * This code is loosely based on the Linux serial driver, written by
7 * Linus Torvalds, Theodore T'so and others. 7 * Linus Torvalds, Theodore T'so and others.
@@ -20,15 +20,6 @@
20 * along with this program; if not, write to the Free Software 20 * along with this program; if not, write to the Free Software
21 * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. 21 * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
22 * 22 *
23 * Original release 10/26/00
24 *
25 * 02/06/01 Support MOXA Industio family boards.
26 * 02/06/01 Support TIOCGICOUNT.
27 * 02/06/01 Fix the problem for connecting to serial mouse.
28 * 02/06/01 Fix the problem for H/W flow control.
29 * 02/06/01 Fix the compling warning when CONFIG_PCI
30 * don't be defined.
31 *
32 * Fed through a cleanup, indent and remove of non 2.6 code by Alan Cox 23 * Fed through a cleanup, indent and remove of non 2.6 code by Alan Cox
33 * <alan@redhat.com>. The original 1.8 code is available on www.moxa.com. 24 * <alan@redhat.com>. The original 1.8 code is available on www.moxa.com.
34 * - Fixed x86_64 cleanness 25 * - Fixed x86_64 cleanness
@@ -66,7 +57,7 @@
66 57
67#include "mxser_new.h" 58#include "mxser_new.h"
68 59
69#define MXSER_VERSION "1.8" 60#define MXSER_VERSION "1.9.1"
70#define MXSERMAJOR 174 61#define MXSERMAJOR 174
71#define MXSERCUMAJOR 175 62#define MXSERCUMAJOR 175
72 63
@@ -76,7 +67,7 @@
76#define MXSER_BOARDS 4 /* Max. boards */ 67#define MXSER_BOARDS 4 /* Max. boards */
77#define MXSER_PORTS 32 /* Max. ports */ 68#define MXSER_PORTS 32 /* Max. ports */
78#define MXSER_PORTS_PER_BOARD 8 /* Max. ports per board */ 69#define MXSER_PORTS_PER_BOARD 8 /* Max. ports per board */
79#define MXSER_ISR_PASS_LIMIT 256 70#define MXSER_ISR_PASS_LIMIT 99999L
80 71
81#define MXSER_ERR_IOADDR -1 72#define MXSER_ERR_IOADDR -1
82#define MXSER_ERR_IRQ -2 73#define MXSER_ERR_IRQ -2
@@ -125,6 +116,9 @@ enum {
125 MXSER_BOARD_CP118U, 116 MXSER_BOARD_CP118U,
126 MXSER_BOARD_CP102UL, 117 MXSER_BOARD_CP102UL,
127 MXSER_BOARD_CP102U, 118 MXSER_BOARD_CP102U,
119 MXSER_BOARD_CP118EL,
120 MXSER_BOARD_CP168EL,
121 MXSER_BOARD_CP104EL
128}; 122};
129 123
130static char *mxser_brdname[] = { 124static char *mxser_brdname[] = {
@@ -149,6 +143,9 @@ static char *mxser_brdname[] = {
149 "CP-118U series", 143 "CP-118U series",
150 "CP-102UL series", 144 "CP-102UL series",
151 "CP-102U series", 145 "CP-102U series",
146 "CP-118EL series",
147 "CP-168EL series",
148 "CP-104EL series"
152}; 149};
153 150
154static int mxser_numports[] = { 151static int mxser_numports[] = {
@@ -173,6 +170,9 @@ static int mxser_numports[] = {
173 8, /* CP118U */ 170 8, /* CP118U */
174 2, /* CP102UL */ 171 2, /* CP102UL */
175 2, /* CP102U */ 172 2, /* CP102U */
173 8, /* CP118EL */
174 8, /* CP168EL */
175 4 /* CP104EL */
176}; 176};
177 177
178#define UART_TYPE_NUM 2 178#define UART_TYPE_NUM 2
@@ -205,22 +205,43 @@ static const struct mxpciuart_info Gpci_uart_info[UART_INFO_NUM] = {
205#ifdef CONFIG_PCI 205#ifdef CONFIG_PCI
206 206
207static struct pci_device_id mxser_pcibrds[] = { 207static struct pci_device_id mxser_pcibrds[] = {
208 {PCI_VENDOR_ID_MOXA, PCI_DEVICE_ID_MOXA_C168, PCI_ANY_ID, PCI_ANY_ID, 0, 0, MXSER_BOARD_C168_PCI}, 208 { PCI_DEVICE(PCI_VENDOR_ID_MOXA, PCI_DEVICE_ID_MOXA_C168),
209 {PCI_VENDOR_ID_MOXA, PCI_DEVICE_ID_MOXA_C104, PCI_ANY_ID, PCI_ANY_ID, 0, 0, MXSER_BOARD_C104_PCI}, 209 .driver_data = MXSER_BOARD_C168_PCI },
210 {PCI_VENDOR_ID_MOXA, PCI_DEVICE_ID_MOXA_CP132, PCI_ANY_ID, PCI_ANY_ID, 0, 0, MXSER_BOARD_CP132}, 210 { PCI_DEVICE(PCI_VENDOR_ID_MOXA, PCI_DEVICE_ID_MOXA_C104),
211 {PCI_VENDOR_ID_MOXA, PCI_DEVICE_ID_MOXA_CP114, PCI_ANY_ID, PCI_ANY_ID, 0, 0, MXSER_BOARD_CP114}, 211 .driver_data = MXSER_BOARD_C104_PCI },
212 {PCI_VENDOR_ID_MOXA, PCI_DEVICE_ID_MOXA_CT114, PCI_ANY_ID, PCI_ANY_ID, 0, 0, MXSER_BOARD_CT114}, 212 { PCI_DEVICE(PCI_VENDOR_ID_MOXA, PCI_DEVICE_ID_MOXA_CP132),
213 {PCI_VENDOR_ID_MOXA, PCI_DEVICE_ID_MOXA_CP102, PCI_ANY_ID, PCI_ANY_ID, 0, 0, MXSER_BOARD_CP102}, 213 .driver_data = MXSER_BOARD_CP132 },
214 {PCI_VENDOR_ID_MOXA, PCI_DEVICE_ID_MOXA_CP104U, PCI_ANY_ID, PCI_ANY_ID, 0, 0, MXSER_BOARD_CP104U}, 214 { PCI_DEVICE(PCI_VENDOR_ID_MOXA, PCI_DEVICE_ID_MOXA_CP114),
215 {PCI_VENDOR_ID_MOXA, PCI_DEVICE_ID_MOXA_CP168U, PCI_ANY_ID, PCI_ANY_ID, 0, 0, MXSER_BOARD_CP168U}, 215 .driver_data = MXSER_BOARD_CP114 },
216 {PCI_VENDOR_ID_MOXA, PCI_DEVICE_ID_MOXA_CP132U, PCI_ANY_ID, PCI_ANY_ID, 0, 0, MXSER_BOARD_CP132U}, 216 { PCI_DEVICE(PCI_VENDOR_ID_MOXA, PCI_DEVICE_ID_MOXA_CT114),
217 {PCI_VENDOR_ID_MOXA, PCI_DEVICE_ID_MOXA_CP134U, PCI_ANY_ID, PCI_ANY_ID, 0, 0, MXSER_BOARD_CP134U}, 217 .driver_data = MXSER_BOARD_CT114 },
218 {PCI_VENDOR_ID_MOXA, PCI_DEVICE_ID_MOXA_CP104JU, PCI_ANY_ID, PCI_ANY_ID, 0, 0, MXSER_BOARD_CP104JU}, 218 { PCI_DEVICE(PCI_VENDOR_ID_MOXA, PCI_DEVICE_ID_MOXA_CP102),
219 {PCI_VENDOR_ID_MOXA, PCI_DEVICE_ID_MOXA_RC7000, PCI_ANY_ID, PCI_ANY_ID, 0, 0, MXSER_BOARD_RC7000}, 219 .driver_data = MXSER_BOARD_CP102 },
220 {PCI_VENDOR_ID_MOXA, PCI_DEVICE_ID_MOXA_CP118U, PCI_ANY_ID, PCI_ANY_ID, 0, 0, MXSER_BOARD_CP118U}, 220 { PCI_DEVICE(PCI_VENDOR_ID_MOXA, PCI_DEVICE_ID_MOXA_CP104U),
221 {PCI_VENDOR_ID_MOXA, PCI_DEVICE_ID_MOXA_CP102UL, PCI_ANY_ID, PCI_ANY_ID, 0, 0, MXSER_BOARD_CP102UL}, 221 .driver_data = MXSER_BOARD_CP104U },
222 {PCI_VENDOR_ID_MOXA, PCI_DEVICE_ID_MOXA_CP102U, PCI_ANY_ID, PCI_ANY_ID, 0, 0, MXSER_BOARD_CP102U}, 222 { PCI_DEVICE(PCI_VENDOR_ID_MOXA, PCI_DEVICE_ID_MOXA_CP168U),
223 {0} 223 .driver_data = MXSER_BOARD_CP168U },
224 { PCI_DEVICE(PCI_VENDOR_ID_MOXA, PCI_DEVICE_ID_MOXA_CP132U),
225 .driver_data = MXSER_BOARD_CP132U },
226 { PCI_DEVICE(PCI_VENDOR_ID_MOXA, PCI_DEVICE_ID_MOXA_CP134U),
227 .driver_data = MXSER_BOARD_CP134U },
228 { PCI_DEVICE(PCI_VENDOR_ID_MOXA, PCI_DEVICE_ID_MOXA_CP104JU),
229 .driver_data = MXSER_BOARD_CP104JU },
230 { PCI_DEVICE(PCI_VENDOR_ID_MOXA, PCI_DEVICE_ID_MOXA_RC7000),
231 .driver_data = MXSER_BOARD_RC7000 },
232 { PCI_DEVICE(PCI_VENDOR_ID_MOXA, PCI_DEVICE_ID_MOXA_CP118U),
233 .driver_data = MXSER_BOARD_CP118U },
234 { PCI_DEVICE(PCI_VENDOR_ID_MOXA, PCI_DEVICE_ID_MOXA_CP102UL),
235 .driver_data = MXSER_BOARD_CP102UL },
236 { PCI_DEVICE(PCI_VENDOR_ID_MOXA, PCI_DEVICE_ID_MOXA_CP102U),
237 .driver_data = MXSER_BOARD_CP102U },
238 { PCI_DEVICE(PCI_VENDOR_ID_MOXA, PCI_DEVICE_ID_MOXA_CP118EL),
239 .driver_data = MXSER_BOARD_CP118EL },
240 { PCI_DEVICE(PCI_VENDOR_ID_MOXA, PCI_DEVICE_ID_MOXA_CP168EL),
241 .driver_data = MXSER_BOARD_CP168EL },
242 { PCI_DEVICE(PCI_VENDOR_ID_MOXA, PCI_DEVICE_ID_MOXA_CP104EL),
243 .driver_data = MXSER_BOARD_CP104EL },
244 { }
224}; 245};
225 246
226MODULE_DEVICE_TABLE(pci, mxser_pcibrds); 247MODULE_DEVICE_TABLE(pci, mxser_pcibrds);
@@ -245,7 +266,6 @@ MODULE_AUTHOR("Casper Yang");
245MODULE_DESCRIPTION("MOXA Smartio/Industio Family Multiport Board Device Driver"); 266MODULE_DESCRIPTION("MOXA Smartio/Industio Family Multiport Board Device Driver");
246module_param_array(ioaddr, int, NULL, 0); 267module_param_array(ioaddr, int, NULL, 0);
247module_param(ttymajor, int, 0); 268module_param(ttymajor, int, 0);
248module_param(calloutmajor, int, 0);
249module_param(verbose, bool, 0); 269module_param(verbose, bool, 0);
250MODULE_LICENSE("GPL"); 270MODULE_LICENSE("GPL");
251 271
@@ -285,23 +305,23 @@ struct mxser_hwconf {
285 int board_type; 305 int board_type;
286 int ports; 306 int ports;
287 int irq; 307 int irq;
288 int vector; 308 unsigned long vector;
289 int vector_mask; 309 unsigned long vector_mask;
290 int uart_type; 310 int uart_type;
291 int ioaddr[MXSER_PORTS_PER_BOARD]; 311 unsigned long ioaddr[MXSER_PORTS_PER_BOARD];
292 int baud_base[MXSER_PORTS_PER_BOARD]; 312 int baud_base[MXSER_PORTS_PER_BOARD];
293 moxa_pci_info pciInfo; 313 moxa_pci_info pciInfo;
294 int IsMoxaMustChipFlag; /* add by Victor Yu. 08-30-2002 */ 314 int IsMoxaMustChipFlag; /* add by Victor Yu. 08-30-2002 */
295 int MaxCanSetBaudRate[MXSER_PORTS_PER_BOARD]; /* add by Victor Yu. 09-04-2002 */ 315 int MaxCanSetBaudRate[MXSER_PORTS_PER_BOARD]; /* add by Victor Yu. 09-04-2002 */
296 int opmode_ioaddr[MXSER_PORTS_PER_BOARD]; /* add by Victor Yu. 01-05-2004 */ 316 unsigned long opmode_ioaddr[MXSER_PORTS_PER_BOARD]; /* add by Victor Yu. 01-05-2004 */
297}; 317};
298 318
299struct mxser_struct { 319struct mxser_struct {
300 int port; 320 int port;
301 int base; /* port base address */ 321 unsigned long base; /* port base address */
302 int irq; /* port using irq no. */ 322 int irq; /* port using irq no. */
303 int vector; /* port irq vector */ 323 unsigned long vector; /* port irq vector */
304 int vectormask; /* port vector mask */ 324 unsigned long vectormask; /* port vector mask */
305 int rx_high_water; 325 int rx_high_water;
306 int rx_trigger; /* Rx fifo trigger level */ 326 int rx_trigger; /* Rx fifo trigger level */
307 int rx_low_water; 327 int rx_low_water;
@@ -337,7 +357,7 @@ struct mxser_struct {
337 int timeout; 357 int timeout;
338 int IsMoxaMustChipFlag; /* add by Victor Yu. 08-30-2002 */ 358 int IsMoxaMustChipFlag; /* add by Victor Yu. 08-30-2002 */
339 int MaxCanSetBaudRate; /* add by Victor Yu. 09-04-2002 */ 359 int MaxCanSetBaudRate; /* add by Victor Yu. 09-04-2002 */
340 int opmode_ioaddr; /* add by Victor Yu. 01-05-2004 */ 360 unsigned long opmode_ioaddr; /* add by Victor Yu. 01-05-2004 */
341 unsigned char stop_rx; 361 unsigned char stop_rx;
342 unsigned char ldisc_stop_rx; 362 unsigned char ldisc_stop_rx;
343 long realbaud; 363 long realbaud;
@@ -485,6 +505,9 @@ static int __init mxser_module_init(void)
485 505
486 if (verbose) 506 if (verbose)
487 printk(KERN_DEBUG "Loading module mxser ...\n"); 507 printk(KERN_DEBUG "Loading module mxser ...\n");
508 printk(KERN_INFO "This is mxser driver version 1.9.1 and needs TESTING."
509 "If your are willing to test this driver, please report to "
510 "jirislaby@gmail.com. Thanks.\n");
488 ret = mxser_init(); 511 ret = mxser_init();
489 if (verbose) 512 if (verbose)
490 printk(KERN_DEBUG "Done.\n"); 513 printk(KERN_DEBUG "Done.\n");
@@ -636,7 +659,7 @@ static int mxser_get_PCI_conf(int busnum, int devnum, int board_type, struct mxs
636{ 659{
637 int i, j; 660 int i, j;
638 /* unsigned int val; */ 661 /* unsigned int val; */
639 unsigned int ioaddress; 662 unsigned long ioaddress;
640 struct pci_dev *pdev = hwconf->pciInfo.pdev; 663 struct pci_dev *pdev = hwconf->pciInfo.pdev;
641 664
642 /* io address */ 665 /* io address */
@@ -790,7 +813,7 @@ static int mxser_init(void)
790 813
791 /* Start finding ISA boards from module arg */ 814 /* Start finding ISA boards from module arg */
792 for (b = 0; b < MXSER_BOARDS && m < MXSER_BOARDS; b++) { 815 for (b = 0; b < MXSER_BOARDS && m < MXSER_BOARDS; b++) {
793 int cap; 816 unsigned long cap;
794 817
795 if (!(cap = ioaddr[b])) 818 if (!(cap = ioaddr[b]))
796 continue; 819 continue;
@@ -928,12 +951,10 @@ static void mxser_do_softint(void *private_)
928 951
929 tty = info->tty; 952 tty = info->tty;
930 953
931 if (tty) { 954 if (test_and_clear_bit(MXSER_EVENT_TXLOW, &info->event))
932 if (test_and_clear_bit(MXSER_EVENT_TXLOW, &info->event)) 955 tty_wakeup(tty);
933 tty_wakeup(tty); 956 if (test_and_clear_bit(MXSER_EVENT_HANGUP, &info->event))
934 if (test_and_clear_bit(MXSER_EVENT_HANGUP, &info->event)) 957 tty_hangup(tty);
935 tty_hangup(tty);
936 }
937} 958}
938 959
939static unsigned char mxser_get_msr(int baseaddr, int mode, int port, struct mxser_struct *info) 960static unsigned char mxser_get_msr(int baseaddr, int mode, int port, struct mxser_struct *info)
@@ -979,6 +1000,7 @@ static int mxser_open(struct tty_struct *tty, struct file *filp)
979 /* 1000 /*
980 * Start up serial port 1001 * Start up serial port
981 */ 1002 */
1003 info->count++;
982 retval = mxser_startup(info); 1004 retval = mxser_startup(info);
983 if (retval) 1005 if (retval)
984 return retval; 1006 return retval;
@@ -987,8 +1009,6 @@ static int mxser_open(struct tty_struct *tty, struct file *filp)
987 if (retval) 1009 if (retval)
988 return retval; 1010 return retval;
989 1011
990 info->count++;
991
992 if ((info->count == 1) && (info->flags & ASYNC_SPLIT_TERMIOS)) { 1012 if ((info->count == 1) && (info->flags & ASYNC_SPLIT_TERMIOS)) {
993 if (tty->driver->subtype == SERIAL_TYPE_NORMAL) 1013 if (tty->driver->subtype == SERIAL_TYPE_NORMAL)
994 *tty->termios = info->normal_termios; 1014 *tty->termios = info->normal_termios;
@@ -1150,11 +1170,13 @@ static int mxser_write(struct tty_struct *tty, const unsigned char *buf, int cou
1150 total += c; 1170 total += c;
1151 } 1171 }
1152 1172
1153 if (info->xmit_cnt && !tty->stopped && !(info->IER & UART_IER_THRI)) { 1173 if (info->xmit_cnt && !tty->stopped
1174 /*&& !(info->IER & UART_IER_THRI)*/) {
1154 if (!tty->hw_stopped || 1175 if (!tty->hw_stopped ||
1155 (info->type == PORT_16550A) || 1176 (info->type == PORT_16550A) ||
1156 (info->IsMoxaMustChipFlag)) { 1177 (info->IsMoxaMustChipFlag)) {
1157 spin_lock_irqsave(&info->slock, flags); 1178 spin_lock_irqsave(&info->slock, flags);
1179 outb(info->IER & ~UART_IER_THRI, info->base + UART_IER);
1158 info->IER |= UART_IER_THRI; 1180 info->IER |= UART_IER_THRI;
1159 outb(info->IER, info->base + UART_IER); 1181 outb(info->IER, info->base + UART_IER);
1160 spin_unlock_irqrestore(&info->slock, flags); 1182 spin_unlock_irqrestore(&info->slock, flags);
@@ -1179,11 +1201,12 @@ static void mxser_put_char(struct tty_struct *tty, unsigned char ch)
1179 info->xmit_head &= SERIAL_XMIT_SIZE - 1; 1201 info->xmit_head &= SERIAL_XMIT_SIZE - 1;
1180 info->xmit_cnt++; 1202 info->xmit_cnt++;
1181 spin_unlock_irqrestore(&info->slock, flags); 1203 spin_unlock_irqrestore(&info->slock, flags);
1182 if (!tty->stopped && !(info->IER & UART_IER_THRI)) { 1204 if (!tty->stopped /*&& !(info->IER & UART_IER_THRI)*/) {
1183 if (!tty->hw_stopped || 1205 if (!tty->hw_stopped ||
1184 (info->type == PORT_16550A) || 1206 (info->type == PORT_16550A) ||
1185 info->IsMoxaMustChipFlag) { 1207 info->IsMoxaMustChipFlag) {
1186 spin_lock_irqsave(&info->slock, flags); 1208 spin_lock_irqsave(&info->slock, flags);
1209 outb(info->IER & ~UART_IER_THRI, info->base + UART_IER);
1187 info->IER |= UART_IER_THRI; 1210 info->IER |= UART_IER_THRI;
1188 outb(info->IER, info->base + UART_IER); 1211 outb(info->IER, info->base + UART_IER);
1189 spin_unlock_irqrestore(&info->slock, flags); 1212 spin_unlock_irqrestore(&info->slock, flags);
@@ -1208,6 +1231,7 @@ static void mxser_flush_chars(struct tty_struct *tty)
1208 1231
1209 spin_lock_irqsave(&info->slock, flags); 1232 spin_lock_irqsave(&info->slock, flags);
1210 1233
1234 outb(info->IER & ~UART_IER_THRI, info->base + UART_IER);
1211 info->IER |= UART_IER_THRI; 1235 info->IER |= UART_IER_THRI;
1212 outb(info->IER, info->base + UART_IER); 1236 outb(info->IER, info->base + UART_IER);
1213 1237
@@ -1228,7 +1252,12 @@ static int mxser_write_room(struct tty_struct *tty)
1228static int mxser_chars_in_buffer(struct tty_struct *tty) 1252static int mxser_chars_in_buffer(struct tty_struct *tty)
1229{ 1253{
1230 struct mxser_struct *info = tty->driver_data; 1254 struct mxser_struct *info = tty->driver_data;
1231 return info->xmit_cnt; 1255 int len = info->xmit_cnt;
1256
1257 if (!(inb(info->base + UART_LSR) & UART_LSR_THRE))
1258 len++;
1259
1260 return len;
1232} 1261}
1233 1262
1234static void mxser_flush_buffer(struct tty_struct *tty) 1263static void mxser_flush_buffer(struct tty_struct *tty)
@@ -1270,7 +1299,8 @@ static int mxser_ioctl(struct tty_struct *tty, struct file *file, unsigned int c
1270 1299
1271 /* following add by Victor Yu. 01-05-2004 */ 1300 /* following add by Victor Yu. 01-05-2004 */
1272 if (cmd == MOXA_SET_OP_MODE || cmd == MOXA_GET_OP_MODE) { 1301 if (cmd == MOXA_SET_OP_MODE || cmd == MOXA_GET_OP_MODE) {
1273 int opmode, p; 1302 int p;
1303 unsigned long opmode;
1274 static unsigned char ModeMask[] = { 0xfc, 0xf3, 0xcf, 0x3f }; 1304 static unsigned char ModeMask[] = { 0xfc, 0xf3, 0xcf, 0x3f };
1275 int shiftbit; 1305 int shiftbit;
1276 unsigned char val, mask; 1306 unsigned char val, mask;
@@ -1572,9 +1602,8 @@ static int mxser_ioctl_special(unsigned int cmd, void __user *argp)
1572 return -EFAULT; 1602 return -EFAULT;
1573 return 0; 1603 return 0;
1574 case MOXA_ASPP_MON_EXT: { 1604 case MOXA_ASPP_MON_EXT: {
1575 int status; 1605 int status, p, shiftbit;
1576 int opmode, p; 1606 unsigned long opmode;
1577 int shiftbit;
1578 unsigned cflag, iflag; 1607 unsigned cflag, iflag;
1579 1608
1580 for (i = 0; i < MXSER_PORTS; i++) { 1609 for (i = 0; i < MXSER_PORTS; i++) {
@@ -1654,73 +1683,52 @@ static int mxser_ioctl_special(unsigned int cmd, void __user *argp)
1654static void mxser_stoprx(struct tty_struct *tty) 1683static void mxser_stoprx(struct tty_struct *tty)
1655{ 1684{
1656 struct mxser_struct *info = tty->driver_data; 1685 struct mxser_struct *info = tty->driver_data;
1657 /* unsigned long flags; */
1658 1686
1659 info->ldisc_stop_rx = 1; 1687 info->ldisc_stop_rx = 1;
1660 if (I_IXOFF(tty)) { 1688 if (I_IXOFF(tty)) {
1661 /* MX_LOCK(&info->slock); */
1662 /* following add by Victor Yu. 09-02-2002 */ 1689 /* following add by Victor Yu. 09-02-2002 */
1663 if (info->IsMoxaMustChipFlag) { 1690 if (info->IsMoxaMustChipFlag) {
1664 info->IER &= ~MOXA_MUST_RECV_ISR; 1691 info->IER &= ~MOXA_MUST_RECV_ISR;
1665 outb(info->IER, info->base + UART_IER); 1692 outb(info->IER, info->base + UART_IER);
1666 } else { 1693 } else if (!(info->flags & ASYNC_CLOSING)) {
1667 /* above add by Victor Yu. 09-02-2002 */
1668 info->x_char = STOP_CHAR(tty); 1694 info->x_char = STOP_CHAR(tty);
1669 /* mask by Victor Yu. 09-02-2002 */
1670 /* outb(info->IER, 0); */
1671 outb(0, info->base + UART_IER); 1695 outb(0, info->base + UART_IER);
1672 info->IER |= UART_IER_THRI; 1696 info->IER |= UART_IER_THRI;
1673 /* force Tx interrupt */
1674 outb(info->IER, info->base + UART_IER); 1697 outb(info->IER, info->base + UART_IER);
1675 } /* add by Victor Yu. 09-02-2002 */ 1698 }
1676 /* MX_UNLOCK(&info->slock); */
1677 } 1699 }
1678 1700
1679 if (info->tty->termios->c_cflag & CRTSCTS) { 1701 if (info->tty->termios->c_cflag & CRTSCTS) {
1680 /* MX_LOCK(&info->slock); */
1681 info->MCR &= ~UART_MCR_RTS; 1702 info->MCR &= ~UART_MCR_RTS;
1682 outb(info->MCR, info->base + UART_MCR); 1703 outb(info->MCR, info->base + UART_MCR);
1683 /* MX_UNLOCK(&info->slock); */
1684 } 1704 }
1685} 1705}
1686 1706
1687static void mxser_startrx(struct tty_struct *tty) 1707static void mxser_startrx(struct tty_struct *tty)
1688{ 1708{
1689 struct mxser_struct *info = tty->driver_data; 1709 struct mxser_struct *info = tty->driver_data;
1690 /* unsigned long flags; */
1691 1710
1692 info->ldisc_stop_rx = 0; 1711 info->ldisc_stop_rx = 0;
1693 if (I_IXOFF(tty)) { 1712 if (I_IXOFF(tty)) {
1694 if (info->x_char) 1713 if (info->x_char)
1695 info->x_char = 0; 1714 info->x_char = 0;
1696 else { 1715 else {
1697 /* MX_LOCK(&info->slock); */
1698
1699 /* following add by Victor Yu. 09-02-2002 */ 1716 /* following add by Victor Yu. 09-02-2002 */
1700 if (info->IsMoxaMustChipFlag) { 1717 if (info->IsMoxaMustChipFlag) {
1701 info->IER |= MOXA_MUST_RECV_ISR; 1718 info->IER |= MOXA_MUST_RECV_ISR;
1702 outb(info->IER, info->base + UART_IER); 1719 outb(info->IER, info->base + UART_IER);
1703 } else { 1720 } else if (!(info->flags & ASYNC_CLOSING)) {
1704 /* above add by Victor Yu. 09-02-2002 */
1705
1706 info->x_char = START_CHAR(tty); 1721 info->x_char = START_CHAR(tty);
1707 /* mask by Victor Yu. 09-02-2002 */
1708 /* outb(info->IER, 0); */
1709 /* add by Victor Yu. 09-02-2002 */
1710 outb(0, info->base + UART_IER); 1722 outb(0, info->base + UART_IER);
1711 /* force Tx interrupt */
1712 info->IER |= UART_IER_THRI; 1723 info->IER |= UART_IER_THRI;
1713 outb(info->IER, info->base + UART_IER); 1724 outb(info->IER, info->base + UART_IER);
1714 } /* add by Victor Yu. 09-02-2002 */ 1725 }
1715 /* MX_UNLOCK(&info->slock); */
1716 } 1726 }
1717 } 1727 }
1718 1728
1719 if (info->tty->termios->c_cflag & CRTSCTS) { 1729 if (info->tty->termios->c_cflag & CRTSCTS) {
1720 /* MX_LOCK(&info->slock); */
1721 info->MCR |= UART_MCR_RTS; 1730 info->MCR |= UART_MCR_RTS;
1722 outb(info->MCR, info->base + UART_MCR); 1731 outb(info->MCR, info->base + UART_MCR);
1723 /* MX_UNLOCK(&info->slock); */
1724 } 1732 }
1725} 1733}
1726 1734
@@ -1730,22 +1738,22 @@ static void mxser_startrx(struct tty_struct *tty)
1730 */ 1738 */
1731static void mxser_throttle(struct tty_struct *tty) 1739static void mxser_throttle(struct tty_struct *tty)
1732{ 1740{
1733 /* struct mxser_struct *info = tty->driver_data; */ 1741 struct mxser_struct *info = tty->driver_data;
1734 /* unsigned long flags; */ 1742 unsigned long flags;
1735 1743
1736 /* MX_LOCK(&info->slock); */ 1744 spin_lock_irqsave(&info->slock, flags);
1737 mxser_stoprx(tty); 1745 mxser_stoprx(tty);
1738 /* MX_UNLOCK(&info->slock); */ 1746 spin_unlock_irqrestore(&info->slock, flags);
1739} 1747}
1740 1748
1741static void mxser_unthrottle(struct tty_struct *tty) 1749static void mxser_unthrottle(struct tty_struct *tty)
1742{ 1750{
1743 /* struct mxser_struct *info = tty->driver_data; */ 1751 struct mxser_struct *info = tty->driver_data;
1744 /* unsigned long flags; */ 1752 unsigned long flags;
1745 1753
1746 /* MX_LOCK(&info->slock); */ 1754 spin_lock_irqsave(&info->slock, flags);
1747 mxser_startrx(tty); 1755 mxser_startrx(tty);
1748 /* MX_UNLOCK(&info->slock); */ 1756 spin_unlock_irqrestore(&info->slock, flags);
1749} 1757}
1750 1758
1751static void mxser_set_termios(struct tty_struct *tty, struct termios *old_termios) 1759static void mxser_set_termios(struct tty_struct *tty, struct termios *old_termios)
@@ -1807,7 +1815,9 @@ static void mxser_start(struct tty_struct *tty)
1807 unsigned long flags; 1815 unsigned long flags;
1808 1816
1809 spin_lock_irqsave(&info->slock, flags); 1817 spin_lock_irqsave(&info->slock, flags);
1810 if (info->xmit_cnt && info->xmit_buf && !(info->IER & UART_IER_THRI)) { 1818 if (info->xmit_cnt && info->xmit_buf
1819 /* && !(info->IER & UART_IER_THRI) */) {
1820 outb(info->IER & ~UART_IER_THRI, info->base + UART_IER);
1811 info->IER |= UART_IER_THRI; 1821 info->IER |= UART_IER_THRI;
1812 outb(info->IER, info->base + UART_IER); 1822 outb(info->IER, info->base + UART_IER);
1813 } 1823 }
@@ -1927,6 +1937,7 @@ static irqreturn_t mxser_interrupt(int irq, void *dev_id, struct pt_regs *regs)
1927 struct mxser_struct *port; 1937 struct mxser_struct *port;
1928 int max, irqbits, bits, msr; 1938 int max, irqbits, bits, msr;
1929 int pass_counter = 0; 1939 int pass_counter = 0;
1940 unsigned int int_cnt;
1930 int handled = IRQ_NONE; 1941 int handled = IRQ_NONE;
1931 1942
1932 port = NULL; 1943 port = NULL;
@@ -1957,90 +1968,77 @@ static irqreturn_t mxser_interrupt(int irq, void *dev_id, struct pt_regs *regs)
1957 continue; 1968 continue;
1958 info = port + i; 1969 info = port + i;
1959 1970
1960 /* following add by Victor Yu. 09-13-2002 */ 1971 int_cnt = 0;
1961 iir = inb(info->base + UART_IIR); 1972 do {
1962 if (iir & UART_IIR_NO_INT) 1973 /* following add by Victor Yu. 09-13-2002 */
1963 continue; 1974 iir = inb(info->base + UART_IIR);
1964 iir &= MOXA_MUST_IIR_MASK; 1975 if (iir & UART_IIR_NO_INT)
1965 if (!info->tty) { 1976 break;
1966 status = inb(info->base + UART_LSR); 1977 iir &= MOXA_MUST_IIR_MASK;
1967 outb(0x27, info->base + UART_FCR); 1978 if (!info->tty) {
1968 inb(info->base + UART_MSR); 1979 status = inb(info->base + UART_LSR);
1969 continue; 1980 outb(0x27, info->base + UART_FCR);
1970 } 1981 inb(info->base + UART_MSR);
1971 /* above add by Victor Yu. 09-13-2002 */ 1982 break;
1972 /* 1983 }
1973 if (info->tty->flip.count < TTY_FLIPBUF_SIZE / 4) { 1984 /* above add by Victor Yu. 09-13-2002 */
1974 info->IER |= MOXA_MUST_RECV_ISR;
1975 outb(info->IER, info->base + UART_IER);
1976 }
1977 */
1978
1979
1980 /* mask by Victor Yu. 09-13-2002
1981 if ( !info->tty ||
1982 (inb(info->base + UART_IIR) & UART_IIR_NO_INT) )
1983 continue;
1984 */
1985 /* mask by Victor Yu. 09-02-2002
1986 status = inb(info->base + UART_LSR) & info->read_status_mask;
1987 */
1988
1989 /* following add by Victor Yu. 09-02-2002 */
1990 status = inb(info->base + UART_LSR);
1991 1985
1992 if (status & UART_LSR_PE) 1986 spin_lock(&info->slock);
1993 info->err_shadow |= NPPI_NOTIFY_PARITY; 1987 /* following add by Victor Yu. 09-02-2002 */
1994 if (status & UART_LSR_FE) 1988 status = inb(info->base + UART_LSR);
1995 info->err_shadow |= NPPI_NOTIFY_FRAMING;
1996 if (status & UART_LSR_OE)
1997 info->err_shadow |= NPPI_NOTIFY_HW_OVERRUN;
1998 if (status & UART_LSR_BI)
1999 info->err_shadow |= NPPI_NOTIFY_BREAK;
2000 1989
2001 if (info->IsMoxaMustChipFlag) { 1990 if (status & UART_LSR_PE)
2002 /* 1991 info->err_shadow |= NPPI_NOTIFY_PARITY;
2003 if ( (status & 0x02) && !(status & 0x01) ) { 1992 if (status & UART_LSR_FE)
2004 outb(info->base+UART_FCR, 0x23); 1993 info->err_shadow |= NPPI_NOTIFY_FRAMING;
2005 continue; 1994 if (status & UART_LSR_OE)
2006 } 1995 info->err_shadow |=
2007 */ 1996 NPPI_NOTIFY_HW_OVERRUN;
2008 if (iir == MOXA_MUST_IIR_GDA || 1997 if (status & UART_LSR_BI)
2009 iir == MOXA_MUST_IIR_RDA || 1998 info->err_shadow |= NPPI_NOTIFY_BREAK;
2010 iir == MOXA_MUST_IIR_RTO || 1999
2011 iir == MOXA_MUST_IIR_LSR) 2000 if (info->IsMoxaMustChipFlag) {
2012 mxser_receive_chars(info, &status); 2001 /*
2002 if ( (status & 0x02) && !(status & 0x01) ) {
2003 outb(info->base+UART_FCR, 0x23);
2004 continue;
2005 }
2006 */
2007 if (iir == MOXA_MUST_IIR_GDA ||
2008 iir == MOXA_MUST_IIR_RDA ||
2009 iir == MOXA_MUST_IIR_RTO ||
2010 iir == MOXA_MUST_IIR_LSR)
2011 mxser_receive_chars(info,
2012 &status);
2013 2013
2014 } else { 2014 } else {
2015 /* above add by Victor Yu. 09-02-2002 */ 2015 /* above add by Victor Yu. 09-02-2002 */
2016 2016
2017 status &= info->read_status_mask; 2017 status &= info->read_status_mask;
2018 if (status & UART_LSR_DR) 2018 if (status & UART_LSR_DR)
2019 mxser_receive_chars(info, &status); 2019 mxser_receive_chars(info,
2020 } 2020 &status);
2021 msr = inb(info->base + UART_MSR);
2022 if (msr & UART_MSR_ANY_DELTA) {
2023 mxser_check_modem_status(info, msr);
2024 }
2025 /* following add by Victor Yu. 09-13-2002 */
2026 if (info->IsMoxaMustChipFlag) {
2027 if ((iir == 0x02) && (status & UART_LSR_THRE)) {
2028 mxser_transmit_chars(info);
2029 } 2021 }
2030 } else { 2022 msr = inb(info->base + UART_MSR);
2031 /* above add by Victor Yu. 09-13-2002 */ 2023 if (msr & UART_MSR_ANY_DELTA)
2024 mxser_check_modem_status(info, msr);
2025
2026 /* following add by Victor Yu. 09-13-2002 */
2027 if (info->IsMoxaMustChipFlag) {
2028 if (iir == 0x02 && (status &
2029 UART_LSR_THRE))
2030 mxser_transmit_chars(info);
2031 } else {
2032 /* above add by Victor Yu. 09-13-2002 */
2032 2033
2033 if (status & UART_LSR_THRE) { 2034 if (status & UART_LSR_THRE)
2034/* 8-2-99 by William 2035 mxser_transmit_chars(info);
2035 if ( info->x_char || (info->xmit_cnt > 0) )
2036*/
2037 mxser_transmit_chars(info);
2038 } 2036 }
2039 } 2037 spin_unlock(&info->slock);
2038 } while (int_cnt++ < MXSER_ISR_PASS_LIMIT);
2040 } 2039 }
2041 if (pass_counter++ > MXSER_ISR_PASS_LIMIT) { 2040 if (pass_counter++ > MXSER_ISR_PASS_LIMIT)
2042 break; /* Prevent infinite loops */ 2041 break; /* Prevent infinite loops */
2043 }
2044 } 2042 }
2045 2043
2046 irq_stop: 2044 irq_stop:
@@ -2070,9 +2068,8 @@ static void mxser_receive_chars(struct mxser_struct *info, int *status)
2070 /* following add by Victor Yu. 09-02-2002 */ 2068 /* following add by Victor Yu. 09-02-2002 */
2071 if (info->IsMoxaMustChipFlag != MOXA_OTHER_UART) { 2069 if (info->IsMoxaMustChipFlag != MOXA_OTHER_UART) {
2072 2070
2073 if (*status & UART_LSR_SPECIAL) { 2071 if (*status & UART_LSR_SPECIAL)
2074 goto intr_old; 2072 goto intr_old;
2075 }
2076 /* following add by Victor Yu. 02-11-2004 */ 2073 /* following add by Victor Yu. 02-11-2004 */
2077 if (info->IsMoxaMustChipFlag == MOXA_MUST_MU860_HWID && 2074 if (info->IsMoxaMustChipFlag == MOXA_MUST_MU860_HWID &&
2078 (*status & MOXA_MUST_LSR_RERR)) 2075 (*status & MOXA_MUST_LSR_RERR))
@@ -2097,12 +2094,6 @@ static void mxser_receive_chars(struct mxser_struct *info, int *status)
2097 ch = inb(info->base + UART_RX); 2094 ch = inb(info->base + UART_RX);
2098 tty_insert_flip_char(tty, ch, 0); 2095 tty_insert_flip_char(tty, ch, 0);
2099 cnt++; 2096 cnt++;
2100 /*
2101 if ((cnt >= HI_WATER) && (info->stop_rx == 0)) {
2102 mxser_stoprx(tty);
2103 info->stop_rx = 1;
2104 break;
2105 } */
2106 } 2097 }
2107 goto end_intr; 2098 goto end_intr;
2108 } 2099 }
@@ -2112,17 +2103,11 @@ static void mxser_receive_chars(struct mxser_struct *info, int *status)
2112 do { 2103 do {
2113 if (max-- < 0) 2104 if (max-- < 0)
2114 break; 2105 break;
2115 /*
2116 if ((cnt >= HI_WATER) && (info->stop_rx == 0)) {
2117 mxser_stoprx(tty);
2118 info->stop_rx=1;
2119 break;
2120 }
2121 */
2122 2106
2123 ch = inb(info->base + UART_RX); 2107 ch = inb(info->base + UART_RX);
2124 /* following add by Victor Yu. 09-02-2002 */ 2108 /* following add by Victor Yu. 09-02-2002 */
2125 if (info->IsMoxaMustChipFlag && (*status & UART_LSR_OE) /*&& !(*status&UART_LSR_DR) */ ) 2109 if (info->IsMoxaMustChipFlag && (*status & UART_LSR_OE)
2110 /*&& !(*status&UART_LSR_DR) */)
2126 outb(0x23, info->base + UART_FCR); 2111 outb(0x23, info->base + UART_FCR);
2127 *status &= info->read_status_mask; 2112 *status &= info->read_status_mask;
2128 /* above add by Victor Yu. 09-02-2002 */ 2113 /* above add by Victor Yu. 09-02-2002 */
@@ -2136,26 +2121,25 @@ static void mxser_receive_chars(struct mxser_struct *info, int *status)
2136 flag = TTY_BREAK; 2121 flag = TTY_BREAK;
2137/* added by casper 1/11/2000 */ 2122/* added by casper 1/11/2000 */
2138 info->icount.brk++; 2123 info->icount.brk++;
2139/* */ 2124
2140 if (info->flags & ASYNC_SAK) 2125 if (info->flags & ASYNC_SAK)
2141 do_SAK(tty); 2126 do_SAK(tty);
2142 } else if (*status & UART_LSR_PE) { 2127 } else if (*status & UART_LSR_PE) {
2143 flag = TTY_PARITY; 2128 flag = TTY_PARITY;
2144/* added by casper 1/11/2000 */ 2129/* added by casper 1/11/2000 */
2145 info->icount.parity++; 2130 info->icount.parity++;
2146/* */
2147 } else if (*status & UART_LSR_FE) { 2131 } else if (*status & UART_LSR_FE) {
2148 flag = TTY_FRAME; 2132 flag = TTY_FRAME;
2149/* added by casper 1/11/2000 */ 2133/* added by casper 1/11/2000 */
2150 info->icount.frame++; 2134 info->icount.frame++;
2151/* */
2152 } else if (*status & UART_LSR_OE) { 2135 } else if (*status & UART_LSR_OE) {
2153 flag = TTY_OVERRUN; 2136 flag = TTY_OVERRUN;
2154/* added by casper 1/11/2000 */ 2137/* added by casper 1/11/2000 */
2155 info->icount.overrun++; 2138 info->icount.overrun++;
2156/* */ 2139 } else
2157 } 2140 flags = TTY_BREAK;
2158 } 2141 } else
2142 flags = 0;
2159 tty_insert_flip_char(tty, ch, flag); 2143 tty_insert_flip_char(tty, ch, flag);
2160 cnt++; 2144 cnt++;
2161 if (cnt >= recv_room) { 2145 if (cnt >= recv_room) {
@@ -2171,7 +2155,6 @@ static void mxser_receive_chars(struct mxser_struct *info, int *status)
2171 /* following add by Victor Yu. 09-02-2002 */ 2155 /* following add by Victor Yu. 09-02-2002 */
2172 if (info->IsMoxaMustChipFlag) 2156 if (info->IsMoxaMustChipFlag)
2173 break; 2157 break;
2174 /* above add by Victor Yu. 09-02-2002 */
2175 2158
2176 /* mask by Victor Yu. 09-02-2002 2159 /* mask by Victor Yu. 09-02-2002
2177 *status = inb(info->base + UART_LSR) & info->read_status_mask; 2160 *status = inb(info->base + UART_LSR) & info->read_status_mask;
@@ -2206,24 +2189,25 @@ static void mxser_transmit_chars(struct mxser_struct *info)
2206 2189
2207/* added by casper 1/11/2000 */ 2190/* added by casper 1/11/2000 */
2208 info->icount.tx++; 2191 info->icount.tx++;
2209/* */ 2192 goto unlock;
2210 spin_unlock_irqrestore(&info->slock, flags);
2211 return;
2212 } 2193 }
2213 2194
2214 if (info->xmit_buf == 0) { 2195 if (info->xmit_buf == 0)
2215 spin_unlock_irqrestore(&info->slock, flags); 2196 goto unlock;
2216 return;
2217 }
2218 2197
2219 if ((info->xmit_cnt <= 0) || info->tty->stopped || 2198 if (info->xmit_cnt == 0) {
2220 (info->tty->hw_stopped && 2199 if (info->xmit_cnt < WAKEUP_CHARS) { /* XXX what's this for?? */
2200 set_bit(MXSER_EVENT_TXLOW, &info->event);
2201 schedule_work(&info->tqueue);
2202 }
2203 goto unlock;
2204 }
2205 if (info->tty->stopped || (info->tty->hw_stopped &&
2221 (info->type != PORT_16550A) && 2206 (info->type != PORT_16550A) &&
2222 (!info->IsMoxaMustChipFlag))) { 2207 (!info->IsMoxaMustChipFlag))) {
2223 info->IER &= ~UART_IER_THRI; 2208 info->IER &= ~UART_IER_THRI;
2224 outb(info->IER, info->base + UART_IER); 2209 outb(info->IER, info->base + UART_IER);
2225 spin_unlock_irqrestore(&info->slock, flags); 2210 goto unlock;
2226 return;
2227 } 2211 }
2228 2212
2229 cnt = info->xmit_cnt; 2213 cnt = info->xmit_cnt;
@@ -2240,11 +2224,9 @@ static void mxser_transmit_chars(struct mxser_struct *info)
2240/* added by James 03-12-2004. */ 2224/* added by James 03-12-2004. */
2241 info->mon_data.txcnt += (cnt - info->xmit_cnt); 2225 info->mon_data.txcnt += (cnt - info->xmit_cnt);
2242 info->mon_data.up_txcnt += (cnt - info->xmit_cnt); 2226 info->mon_data.up_txcnt += (cnt - info->xmit_cnt);
2243/* (above) added by James. */
2244 2227
2245/* added by casper 1/11/2000 */ 2228/* added by casper 1/11/2000 */
2246 info->icount.tx += (cnt - info->xmit_cnt); 2229 info->icount.tx += (cnt - info->xmit_cnt);
2247/* */
2248 2230
2249 if (info->xmit_cnt < WAKEUP_CHARS) { 2231 if (info->xmit_cnt < WAKEUP_CHARS) {
2250 set_bit(MXSER_EVENT_TXLOW, &info->event); 2232 set_bit(MXSER_EVENT_TXLOW, &info->event);
@@ -2254,6 +2236,7 @@ static void mxser_transmit_chars(struct mxser_struct *info)
2254 info->IER &= ~UART_IER_THRI; 2236 info->IER &= ~UART_IER_THRI;
2255 outb(info->IER, info->base + UART_IER); 2237 outb(info->IER, info->base + UART_IER);
2256 } 2238 }
2239unlock:
2257 spin_unlock_irqrestore(&info->slock, flags); 2240 spin_unlock_irqrestore(&info->slock, flags);
2258} 2241}
2259 2242
@@ -2284,16 +2267,19 @@ static void mxser_check_modem_status(struct mxser_struct *info, int status)
2284 2267
2285 if ((info->type != PORT_16550A) && 2268 if ((info->type != PORT_16550A) &&
2286 (!info->IsMoxaMustChipFlag)) { 2269 (!info->IsMoxaMustChipFlag)) {
2270 outb(info->IER & ~UART_IER_THRI,
2271 info->base + UART_IER);
2287 info->IER |= UART_IER_THRI; 2272 info->IER |= UART_IER_THRI;
2288 outb(info->IER, info->base + UART_IER); 2273 outb(info->IER, info->base + UART_IER);
2289 } 2274 }
2290 set_bit(MXSER_EVENT_TXLOW, &info->event); 2275 set_bit(MXSER_EVENT_TXLOW, &info->event);
2291 schedule_work(&info->tqueue); } 2276 schedule_work(&info->tqueue);
2277 }
2292 } else { 2278 } else {
2293 if (!(status & UART_MSR_CTS)) { 2279 if (!(status & UART_MSR_CTS)) {
2294 info->tty->hw_stopped = 1; 2280 info->tty->hw_stopped = 1;
2295 if ((info->type != PORT_16550A) && 2281 if (info->type != PORT_16550A &&
2296 (!info->IsMoxaMustChipFlag)) { 2282 !info->IsMoxaMustChipFlag) {
2297 info->IER &= ~UART_IER_THRI; 2283 info->IER &= ~UART_IER_THRI;
2298 outb(info->IER, info->base + UART_IER); 2284 outb(info->IER, info->base + UART_IER);
2299 } 2285 }
@@ -2645,8 +2631,10 @@ static int mxser_change_speed(struct mxser_struct *info, struct termios *old_ter
2645 if (info->tty->hw_stopped) { 2631 if (info->tty->hw_stopped) {
2646 if (status & UART_MSR_CTS) { 2632 if (status & UART_MSR_CTS) {
2647 info->tty->hw_stopped = 0; 2633 info->tty->hw_stopped = 0;
2648 if ((info->type != PORT_16550A) && 2634 if (info->type != PORT_16550A &&
2649 (!info->IsMoxaMustChipFlag)) { 2635 !info->IsMoxaMustChipFlag) {
2636 outb(info->IER & ~UART_IER_THRI,
2637 info->base + UART_IER);
2650 info->IER |= UART_IER_THRI; 2638 info->IER |= UART_IER_THRI;
2651 outb(info->IER, info->base + UART_IER); 2639 outb(info->IER, info->base + UART_IER);
2652 } 2640 }
generated by cgit v1.2.2 (git 2.25.0) at 2024-12-14 23:02:02 -0500