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authorJ. Suter <jsuter@hardwave.de>2005-08-09 23:28:46 -0400
committerDavid S. Miller <davem@sunset.davemloft.net>2005-08-29 18:55:03 -0400
commit3a5e903c09aed19ca4a1bb26d87b8d6461a93818 (patch)
treeb9761b89aaba6537d06893091a2f43c9a8e17c3f /net
parent7b9eb9e2099f6f4acd6a36bcd7820d27c3cf5ee3 (diff)
[Bluetooth]: Implement RFCOMM remote port negotiation
This patch implements the remote port negotiation (RPN) of the RFCOMM protocol for Bluetooth. Signed-off-by: J. Suter <jsuter@hardwave.de> Signed-off-by: Marcel Holtmann <marcel@holtmann.org> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net')
-rw-r--r--net/bluetooth/rfcomm/core.c71
-rw-r--r--net/bluetooth/rfcomm/tty.c197
2 files changed, 196 insertions, 72 deletions
diff --git a/net/bluetooth/rfcomm/core.c b/net/bluetooth/rfcomm/core.c
index 27bf5047cd33..52022cc8a2da 100644
--- a/net/bluetooth/rfcomm/core.c
+++ b/net/bluetooth/rfcomm/core.c
@@ -21,10 +21,6 @@
21 SOFTWARE IS DISCLAIMED. 21 SOFTWARE IS DISCLAIMED.
22*/ 22*/
23 23
24/*
25 RPN support - Dirk Husemann <hud@zurich.ibm.com>
26*/
27
28/* 24/*
29 * Bluetooth RFCOMM core. 25 * Bluetooth RFCOMM core.
30 * 26 *
@@ -115,10 +111,10 @@ static void rfcomm_session_del(struct rfcomm_session *s);
115#define __get_mcc_len(b) ((b & 0xfe) >> 1) 111#define __get_mcc_len(b) ((b & 0xfe) >> 1)
116 112
117/* RPN macros */ 113/* RPN macros */
118#define __rpn_line_settings(data, stop, parity) ((data & 0x3) | ((stop & 0x1) << 2) | ((parity & 0x3) << 3)) 114#define __rpn_line_settings(data, stop, parity) ((data & 0x3) | ((stop & 0x1) << 2) | ((parity & 0x7) << 3))
119#define __get_rpn_data_bits(line) ((line) & 0x3) 115#define __get_rpn_data_bits(line) ((line) & 0x3)
120#define __get_rpn_stop_bits(line) (((line) >> 2) & 0x1) 116#define __get_rpn_stop_bits(line) (((line) >> 2) & 0x1)
121#define __get_rpn_parity(line) (((line) >> 3) & 0x3) 117#define __get_rpn_parity(line) (((line) >> 3) & 0x7)
122 118
123static inline void rfcomm_schedule(uint event) 119static inline void rfcomm_schedule(uint event)
124{ 120{
@@ -780,10 +776,10 @@ static int rfcomm_send_pn(struct rfcomm_session *s, int cr, struct rfcomm_dlc *d
780 return rfcomm_send_frame(s, buf, ptr - buf); 776 return rfcomm_send_frame(s, buf, ptr - buf);
781} 777}
782 778
783static int rfcomm_send_rpn(struct rfcomm_session *s, int cr, u8 dlci, 779int rfcomm_send_rpn(struct rfcomm_session *s, int cr, u8 dlci,
784 u8 bit_rate, u8 data_bits, u8 stop_bits, 780 u8 bit_rate, u8 data_bits, u8 stop_bits,
785 u8 parity, u8 flow_ctrl_settings, 781 u8 parity, u8 flow_ctrl_settings,
786 u8 xon_char, u8 xoff_char, u16 param_mask) 782 u8 xon_char, u8 xoff_char, u16 param_mask)
787{ 783{
788 struct rfcomm_hdr *hdr; 784 struct rfcomm_hdr *hdr;
789 struct rfcomm_mcc *mcc; 785 struct rfcomm_mcc *mcc;
@@ -791,9 +787,9 @@ static int rfcomm_send_rpn(struct rfcomm_session *s, int cr, u8 dlci,
791 u8 buf[16], *ptr = buf; 787 u8 buf[16], *ptr = buf;
792 788
793 BT_DBG("%p cr %d dlci %d bit_r 0x%x data_b 0x%x stop_b 0x%x parity 0x%x" 789 BT_DBG("%p cr %d dlci %d bit_r 0x%x data_b 0x%x stop_b 0x%x parity 0x%x"
794 "flwc_s 0x%x xon_c 0x%x xoff_c 0x%x p_mask 0x%x", 790 " flwc_s 0x%x xon_c 0x%x xoff_c 0x%x p_mask 0x%x",
795 s, cr, dlci, bit_rate, data_bits, stop_bits, parity, 791 s, cr, dlci, bit_rate, data_bits, stop_bits, parity,
796 flow_ctrl_settings, xon_char, xoff_char, param_mask); 792 flow_ctrl_settings, xon_char, xoff_char, param_mask);
797 793
798 hdr = (void *) ptr; ptr += sizeof(*hdr); 794 hdr = (void *) ptr; ptr += sizeof(*hdr);
799 hdr->addr = __addr(s->initiator, 0); 795 hdr->addr = __addr(s->initiator, 0);
@@ -1265,16 +1261,16 @@ static int rfcomm_recv_rpn(struct rfcomm_session *s, int cr, int len, struct sk_
1265 u8 xon_char = 0; 1261 u8 xon_char = 0;
1266 u8 xoff_char = 0; 1262 u8 xoff_char = 0;
1267 u16 rpn_mask = RFCOMM_RPN_PM_ALL; 1263 u16 rpn_mask = RFCOMM_RPN_PM_ALL;
1268 1264
1269 BT_DBG("dlci %d cr %d len 0x%x bitr 0x%x line 0x%x flow 0x%x xonc 0x%x xoffc 0x%x pm 0x%x", 1265 BT_DBG("dlci %d cr %d len 0x%x bitr 0x%x line 0x%x flow 0x%x xonc 0x%x xoffc 0x%x pm 0x%x",
1270 dlci, cr, len, rpn->bit_rate, rpn->line_settings, rpn->flow_ctrl, 1266 dlci, cr, len, rpn->bit_rate, rpn->line_settings, rpn->flow_ctrl,
1271 rpn->xon_char, rpn->xoff_char, rpn->param_mask); 1267 rpn->xon_char, rpn->xoff_char, rpn->param_mask);
1272 1268
1273 if (!cr) 1269 if (!cr)
1274 return 0; 1270 return 0;
1275 1271
1276 if (len == 1) { 1272 if (len == 1) {
1277 /* request: return default setting */ 1273 /* This is a request, return default settings */
1278 bit_rate = RFCOMM_RPN_BR_115200; 1274 bit_rate = RFCOMM_RPN_BR_115200;
1279 data_bits = RFCOMM_RPN_DATA_8; 1275 data_bits = RFCOMM_RPN_DATA_8;
1280 stop_bits = RFCOMM_RPN_STOP_1; 1276 stop_bits = RFCOMM_RPN_STOP_1;
@@ -1282,11 +1278,12 @@ static int rfcomm_recv_rpn(struct rfcomm_session *s, int cr, int len, struct sk_
1282 flow_ctrl = RFCOMM_RPN_FLOW_NONE; 1278 flow_ctrl = RFCOMM_RPN_FLOW_NONE;
1283 xon_char = RFCOMM_RPN_XON_CHAR; 1279 xon_char = RFCOMM_RPN_XON_CHAR;
1284 xoff_char = RFCOMM_RPN_XOFF_CHAR; 1280 xoff_char = RFCOMM_RPN_XOFF_CHAR;
1285
1286 goto rpn_out; 1281 goto rpn_out;
1287 } 1282 }
1288 /* check for sane values: ignore/accept bit_rate, 8 bits, 1 stop bit, no parity, 1283
1289 no flow control lines, normal XON/XOFF chars */ 1284 /* Check for sane values, ignore/accept bit_rate, 8 bits, 1 stop bit,
1285 * no parity, no flow control lines, normal XON/XOFF chars */
1286
1290 if (rpn->param_mask & RFCOMM_RPN_PM_BITRATE) { 1287 if (rpn->param_mask & RFCOMM_RPN_PM_BITRATE) {
1291 bit_rate = rpn->bit_rate; 1288 bit_rate = rpn->bit_rate;
1292 if (bit_rate != RFCOMM_RPN_BR_115200) { 1289 if (bit_rate != RFCOMM_RPN_BR_115200) {
@@ -1295,6 +1292,7 @@ static int rfcomm_recv_rpn(struct rfcomm_session *s, int cr, int len, struct sk_
1295 rpn_mask ^= RFCOMM_RPN_PM_BITRATE; 1292 rpn_mask ^= RFCOMM_RPN_PM_BITRATE;
1296 } 1293 }
1297 } 1294 }
1295
1298 if (rpn->param_mask & RFCOMM_RPN_PM_DATA) { 1296 if (rpn->param_mask & RFCOMM_RPN_PM_DATA) {
1299 data_bits = __get_rpn_data_bits(rpn->line_settings); 1297 data_bits = __get_rpn_data_bits(rpn->line_settings);
1300 if (data_bits != RFCOMM_RPN_DATA_8) { 1298 if (data_bits != RFCOMM_RPN_DATA_8) {
@@ -1303,6 +1301,7 @@ static int rfcomm_recv_rpn(struct rfcomm_session *s, int cr, int len, struct sk_
1303 rpn_mask ^= RFCOMM_RPN_PM_DATA; 1301 rpn_mask ^= RFCOMM_RPN_PM_DATA;
1304 } 1302 }
1305 } 1303 }
1304
1306 if (rpn->param_mask & RFCOMM_RPN_PM_STOP) { 1305 if (rpn->param_mask & RFCOMM_RPN_PM_STOP) {
1307 stop_bits = __get_rpn_stop_bits(rpn->line_settings); 1306 stop_bits = __get_rpn_stop_bits(rpn->line_settings);
1308 if (stop_bits != RFCOMM_RPN_STOP_1) { 1307 if (stop_bits != RFCOMM_RPN_STOP_1) {
@@ -1311,6 +1310,7 @@ static int rfcomm_recv_rpn(struct rfcomm_session *s, int cr, int len, struct sk_
1311 rpn_mask ^= RFCOMM_RPN_PM_STOP; 1310 rpn_mask ^= RFCOMM_RPN_PM_STOP;
1312 } 1311 }
1313 } 1312 }
1313
1314 if (rpn->param_mask & RFCOMM_RPN_PM_PARITY) { 1314 if (rpn->param_mask & RFCOMM_RPN_PM_PARITY) {
1315 parity = __get_rpn_parity(rpn->line_settings); 1315 parity = __get_rpn_parity(rpn->line_settings);
1316 if (parity != RFCOMM_RPN_PARITY_NONE) { 1316 if (parity != RFCOMM_RPN_PARITY_NONE) {
@@ -1319,6 +1319,7 @@ static int rfcomm_recv_rpn(struct rfcomm_session *s, int cr, int len, struct sk_
1319 rpn_mask ^= RFCOMM_RPN_PM_PARITY; 1319 rpn_mask ^= RFCOMM_RPN_PM_PARITY;
1320 } 1320 }
1321 } 1321 }
1322
1322 if (rpn->param_mask & RFCOMM_RPN_PM_FLOW) { 1323 if (rpn->param_mask & RFCOMM_RPN_PM_FLOW) {
1323 flow_ctrl = rpn->flow_ctrl; 1324 flow_ctrl = rpn->flow_ctrl;
1324 if (flow_ctrl != RFCOMM_RPN_FLOW_NONE) { 1325 if (flow_ctrl != RFCOMM_RPN_FLOW_NONE) {
@@ -1327,6 +1328,7 @@ static int rfcomm_recv_rpn(struct rfcomm_session *s, int cr, int len, struct sk_
1327 rpn_mask ^= RFCOMM_RPN_PM_FLOW; 1328 rpn_mask ^= RFCOMM_RPN_PM_FLOW;
1328 } 1329 }
1329 } 1330 }
1331
1330 if (rpn->param_mask & RFCOMM_RPN_PM_XON) { 1332 if (rpn->param_mask & RFCOMM_RPN_PM_XON) {
1331 xon_char = rpn->xon_char; 1333 xon_char = rpn->xon_char;
1332 if (xon_char != RFCOMM_RPN_XON_CHAR) { 1334 if (xon_char != RFCOMM_RPN_XON_CHAR) {
@@ -1335,6 +1337,7 @@ static int rfcomm_recv_rpn(struct rfcomm_session *s, int cr, int len, struct sk_
1335 rpn_mask ^= RFCOMM_RPN_PM_XON; 1337 rpn_mask ^= RFCOMM_RPN_PM_XON;
1336 } 1338 }
1337 } 1339 }
1340
1338 if (rpn->param_mask & RFCOMM_RPN_PM_XOFF) { 1341 if (rpn->param_mask & RFCOMM_RPN_PM_XOFF) {
1339 xoff_char = rpn->xoff_char; 1342 xoff_char = rpn->xoff_char;
1340 if (xoff_char != RFCOMM_RPN_XOFF_CHAR) { 1343 if (xoff_char != RFCOMM_RPN_XOFF_CHAR) {
@@ -1345,9 +1348,8 @@ static int rfcomm_recv_rpn(struct rfcomm_session *s, int cr, int len, struct sk_
1345 } 1348 }
1346 1349
1347rpn_out: 1350rpn_out:
1348 rfcomm_send_rpn(s, 0, dlci, 1351 rfcomm_send_rpn(s, 0, dlci, bit_rate, data_bits, stop_bits,
1349 bit_rate, data_bits, stop_bits, parity, flow_ctrl, 1352 parity, flow_ctrl, xon_char, xoff_char, rpn_mask);
1350 xon_char, xoff_char, rpn_mask);
1351 1353
1352 return 0; 1354 return 0;
1353} 1355}
@@ -1358,14 +1360,13 @@ static int rfcomm_recv_rls(struct rfcomm_session *s, int cr, struct sk_buff *skb
1358 u8 dlci = __get_dlci(rls->dlci); 1360 u8 dlci = __get_dlci(rls->dlci);
1359 1361
1360 BT_DBG("dlci %d cr %d status 0x%x", dlci, cr, rls->status); 1362 BT_DBG("dlci %d cr %d status 0x%x", dlci, cr, rls->status);
1361 1363
1362 if (!cr) 1364 if (!cr)
1363 return 0; 1365 return 0;
1364 1366
1365 /* FIXME: We should probably do something with this 1367 /* We should probably do something with this information here. But
1366 information here. But for now it's sufficient just 1368 * for now it's sufficient just to reply -- Bluetooth 1.1 says it's
1367 to reply -- Bluetooth 1.1 says it's mandatory to 1369 * mandatory to recognise and respond to RLS */
1368 recognise and respond to RLS */
1369 1370
1370 rfcomm_send_rls(s, 0, dlci, rls->status); 1371 rfcomm_send_rls(s, 0, dlci, rls->status);
1371 1372
@@ -1381,7 +1382,7 @@ static int rfcomm_recv_msc(struct rfcomm_session *s, int cr, struct sk_buff *skb
1381 BT_DBG("dlci %d cr %d v24 0x%x", dlci, cr, msc->v24_sig); 1382 BT_DBG("dlci %d cr %d v24 0x%x", dlci, cr, msc->v24_sig);
1382 1383
1383 d = rfcomm_dlc_get(s, dlci); 1384 d = rfcomm_dlc_get(s, dlci);
1384 if (!d) 1385 if (!d)
1385 return 0; 1386 return 0;
1386 1387
1387 if (cr) { 1388 if (cr) {
@@ -1389,7 +1390,7 @@ static int rfcomm_recv_msc(struct rfcomm_session *s, int cr, struct sk_buff *skb
1389 set_bit(RFCOMM_TX_THROTTLED, &d->flags); 1390 set_bit(RFCOMM_TX_THROTTLED, &d->flags);
1390 else 1391 else
1391 clear_bit(RFCOMM_TX_THROTTLED, &d->flags); 1392 clear_bit(RFCOMM_TX_THROTTLED, &d->flags);
1392 1393
1393 rfcomm_dlc_lock(d); 1394 rfcomm_dlc_lock(d);
1394 if (d->modem_status) 1395 if (d->modem_status)
1395 d->modem_status(d, msc->v24_sig); 1396 d->modem_status(d, msc->v24_sig);
@@ -1398,7 +1399,7 @@ static int rfcomm_recv_msc(struct rfcomm_session *s, int cr, struct sk_buff *skb
1398 rfcomm_send_msc(s, 0, dlci, msc->v24_sig); 1399 rfcomm_send_msc(s, 0, dlci, msc->v24_sig);
1399 1400
1400 d->mscex |= RFCOMM_MSCEX_RX; 1401 d->mscex |= RFCOMM_MSCEX_RX;
1401 } else 1402 } else
1402 d->mscex |= RFCOMM_MSCEX_TX; 1403 d->mscex |= RFCOMM_MSCEX_TX;
1403 1404
1404 return 0; 1405 return 0;
diff --git a/net/bluetooth/rfcomm/tty.c b/net/bluetooth/rfcomm/tty.c
index 67d9dd6b0fac..bbc3a44a86f0 100644
--- a/net/bluetooth/rfcomm/tty.c
+++ b/net/bluetooth/rfcomm/tty.c
@@ -745,20 +745,143 @@ static int rfcomm_tty_ioctl(struct tty_struct *tty, struct file *filp, unsigned
745 return -ENOIOCTLCMD; 745 return -ENOIOCTLCMD;
746} 746}
747 747
748#define RELEVANT_IFLAG(iflag) (iflag & (IGNBRK|BRKINT|IGNPAR|PARMRK|INPCK))
749
750static void rfcomm_tty_set_termios(struct tty_struct *tty, struct termios *old) 748static void rfcomm_tty_set_termios(struct tty_struct *tty, struct termios *old)
751{ 749{
752 BT_DBG("tty %p", tty); 750 struct termios *new = (struct termios *) tty->termios;
751 int old_baud_rate = tty_termios_baud_rate(old);
752 int new_baud_rate = tty_termios_baud_rate(new);
753 753
754 if ((tty->termios->c_cflag == old->c_cflag) && 754 u8 baud, data_bits, stop_bits, parity, x_on, x_off;
755 (RELEVANT_IFLAG(tty->termios->c_iflag) == RELEVANT_IFLAG(old->c_iflag))) 755 u16 changes = 0;
756 return; 756
757 struct rfcomm_dev *dev = (struct rfcomm_dev *) tty->driver_data;
758
759 BT_DBG("tty %p termios %p", tty, old);
760
761 /* Handle turning off CRTSCTS */
762 if ((old->c_cflag & CRTSCTS) && !(new->c_cflag & CRTSCTS))
763 BT_DBG("Turning off CRTSCTS unsupported");
764
765 /* Parity on/off and when on, odd/even */
766 if (((old->c_cflag & PARENB) != (new->c_cflag & PARENB)) ||
767 ((old->c_cflag & PARODD) != (new->c_cflag & PARODD)) ) {
768 changes |= RFCOMM_RPN_PM_PARITY;
769 BT_DBG("Parity change detected.");
770 }
771
772 /* Mark and space parity are not supported! */
773 if (new->c_cflag & PARENB) {
774 if (new->c_cflag & PARODD) {
775 BT_DBG("Parity is ODD");
776 parity = RFCOMM_RPN_PARITY_ODD;
777 } else {
778 BT_DBG("Parity is EVEN");
779 parity = RFCOMM_RPN_PARITY_EVEN;
780 }
781 } else {
782 BT_DBG("Parity is OFF");
783 parity = RFCOMM_RPN_PARITY_NONE;
784 }
785
786 /* Setting the x_on / x_off characters */
787 if (old->c_cc[VSTOP] != new->c_cc[VSTOP]) {
788 BT_DBG("XOFF custom");
789 x_on = new->c_cc[VSTOP];
790 changes |= RFCOMM_RPN_PM_XON;
791 } else {
792 BT_DBG("XOFF default");
793 x_on = RFCOMM_RPN_XON_CHAR;
794 }
795
796 if (old->c_cc[VSTART] != new->c_cc[VSTART]) {
797 BT_DBG("XON custom");
798 x_off = new->c_cc[VSTART];
799 changes |= RFCOMM_RPN_PM_XOFF;
800 } else {
801 BT_DBG("XON default");
802 x_off = RFCOMM_RPN_XOFF_CHAR;
803 }
804
805 /* Handle setting of stop bits */
806 if ((old->c_cflag & CSTOPB) != (new->c_cflag & CSTOPB))
807 changes |= RFCOMM_RPN_PM_STOP;
808
809 /* POSIX does not support 1.5 stop bits and RFCOMM does not
810 * support 2 stop bits. So a request for 2 stop bits gets
811 * translated to 1.5 stop bits */
812 if (new->c_cflag & CSTOPB) {
813 stop_bits = RFCOMM_RPN_STOP_15;
814 } else {
815 stop_bits = RFCOMM_RPN_STOP_1;
816 }
757 817
758 /* handle turning off CRTSCTS */ 818 /* Handle number of data bits [5-8] */
759 if ((old->c_cflag & CRTSCTS) && !(tty->termios->c_cflag & CRTSCTS)) { 819 if ((old->c_cflag & CSIZE) != (new->c_cflag & CSIZE))
760 BT_DBG("turning off CRTSCTS"); 820 changes |= RFCOMM_RPN_PM_DATA;
821
822 switch (new->c_cflag & CSIZE) {
823 case CS5:
824 data_bits = RFCOMM_RPN_DATA_5;
825 break;
826 case CS6:
827 data_bits = RFCOMM_RPN_DATA_6;
828 break;
829 case CS7:
830 data_bits = RFCOMM_RPN_DATA_7;
831 break;
832 case CS8:
833 data_bits = RFCOMM_RPN_DATA_8;
834 break;
835 default:
836 data_bits = RFCOMM_RPN_DATA_8;
837 break;
761 } 838 }
839
840 /* Handle baudrate settings */
841 if (old_baud_rate != new_baud_rate)
842 changes |= RFCOMM_RPN_PM_BITRATE;
843
844 switch (new_baud_rate) {
845 case 2400:
846 baud = RFCOMM_RPN_BR_2400;
847 break;
848 case 4800:
849 baud = RFCOMM_RPN_BR_4800;
850 break;
851 case 7200:
852 baud = RFCOMM_RPN_BR_7200;
853 break;
854 case 9600:
855 baud = RFCOMM_RPN_BR_9600;
856 break;
857 case 19200:
858 baud = RFCOMM_RPN_BR_19200;
859 break;
860 case 38400:
861 baud = RFCOMM_RPN_BR_38400;
862 break;
863 case 57600:
864 baud = RFCOMM_RPN_BR_57600;
865 break;
866 case 115200:
867 baud = RFCOMM_RPN_BR_115200;
868 break;
869 case 230400:
870 baud = RFCOMM_RPN_BR_230400;
871 break;
872 default:
873 /* 9600 is standard accordinag to the RFCOMM specification */
874 baud = RFCOMM_RPN_BR_9600;
875 break;
876
877 }
878
879 if (changes)
880 rfcomm_send_rpn(dev->dlc->session, 1, dev->dlc->dlci, baud,
881 data_bits, stop_bits, parity,
882 RFCOMM_RPN_FLOW_NONE, x_on, x_off, changes);
883
884 return;
762} 885}
763 886
764static void rfcomm_tty_throttle(struct tty_struct *tty) 887static void rfcomm_tty_throttle(struct tty_struct *tty)
@@ -766,7 +889,7 @@ static void rfcomm_tty_throttle(struct tty_struct *tty)
766 struct rfcomm_dev *dev = (struct rfcomm_dev *) tty->driver_data; 889 struct rfcomm_dev *dev = (struct rfcomm_dev *) tty->driver_data;
767 890
768 BT_DBG("tty %p dev %p", tty, dev); 891 BT_DBG("tty %p dev %p", tty, dev);
769 892
770 rfcomm_dlc_throttle(dev->dlc); 893 rfcomm_dlc_throttle(dev->dlc);
771} 894}
772 895
@@ -775,7 +898,7 @@ static void rfcomm_tty_unthrottle(struct tty_struct *tty)
775 struct rfcomm_dev *dev = (struct rfcomm_dev *) tty->driver_data; 898 struct rfcomm_dev *dev = (struct rfcomm_dev *) tty->driver_data;
776 899
777 BT_DBG("tty %p dev %p", tty, dev); 900 BT_DBG("tty %p dev %p", tty, dev);
778 901
779 rfcomm_dlc_unthrottle(dev->dlc); 902 rfcomm_dlc_unthrottle(dev->dlc);
780} 903}
781 904
@@ -846,35 +969,35 @@ static int rfcomm_tty_tiocmget(struct tty_struct *tty, struct file *filp)
846 969
847static int rfcomm_tty_tiocmset(struct tty_struct *tty, struct file *filp, unsigned int set, unsigned int clear) 970static int rfcomm_tty_tiocmset(struct tty_struct *tty, struct file *filp, unsigned int set, unsigned int clear)
848{ 971{
849 struct rfcomm_dev *dev = (struct rfcomm_dev *) tty->driver_data; 972 struct rfcomm_dev *dev = (struct rfcomm_dev *) tty->driver_data;
850 struct rfcomm_dlc *dlc = dev->dlc; 973 struct rfcomm_dlc *dlc = dev->dlc;
851 u8 v24_sig; 974 u8 v24_sig;
852 975
853 BT_DBG("tty %p dev %p set 0x%02x clear 0x%02x", tty, dev, set, clear); 976 BT_DBG("tty %p dev %p set 0x%02x clear 0x%02x", tty, dev, set, clear);
854 977
855 rfcomm_dlc_get_modem_status(dlc, &v24_sig); 978 rfcomm_dlc_get_modem_status(dlc, &v24_sig);
856 979
857 if (set & TIOCM_DSR || set & TIOCM_DTR) 980 if (set & TIOCM_DSR || set & TIOCM_DTR)
858 v24_sig |= RFCOMM_V24_RTC; 981 v24_sig |= RFCOMM_V24_RTC;
859 if (set & TIOCM_RTS || set & TIOCM_CTS) 982 if (set & TIOCM_RTS || set & TIOCM_CTS)
860 v24_sig |= RFCOMM_V24_RTR; 983 v24_sig |= RFCOMM_V24_RTR;
861 if (set & TIOCM_RI) 984 if (set & TIOCM_RI)
862 v24_sig |= RFCOMM_V24_IC; 985 v24_sig |= RFCOMM_V24_IC;
863 if (set & TIOCM_CD) 986 if (set & TIOCM_CD)
864 v24_sig |= RFCOMM_V24_DV; 987 v24_sig |= RFCOMM_V24_DV;
865 988
866 if (clear & TIOCM_DSR || clear & TIOCM_DTR) 989 if (clear & TIOCM_DSR || clear & TIOCM_DTR)
867 v24_sig &= ~RFCOMM_V24_RTC; 990 v24_sig &= ~RFCOMM_V24_RTC;
868 if (clear & TIOCM_RTS || clear & TIOCM_CTS) 991 if (clear & TIOCM_RTS || clear & TIOCM_CTS)
869 v24_sig &= ~RFCOMM_V24_RTR; 992 v24_sig &= ~RFCOMM_V24_RTR;
870 if (clear & TIOCM_RI) 993 if (clear & TIOCM_RI)
871 v24_sig &= ~RFCOMM_V24_IC; 994 v24_sig &= ~RFCOMM_V24_IC;
872 if (clear & TIOCM_CD) 995 if (clear & TIOCM_CD)
873 v24_sig &= ~RFCOMM_V24_DV; 996 v24_sig &= ~RFCOMM_V24_DV;
874 997
875 rfcomm_dlc_set_modem_status(dlc, v24_sig); 998 rfcomm_dlc_set_modem_status(dlc, v24_sig);
876 999
877 return 0; 1000 return 0;
878} 1001}
879 1002
880/* ---- TTY structure ---- */ 1003/* ---- TTY structure ---- */