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authorLinus Torvalds <torvalds@linux-foundation.org>2012-03-21 08:04:47 +0400
committerLinus Torvalds <torvalds@linux-foundation.org>2012-03-21 08:04:47 +0400
commit3b59bf081622b6446db77ad06c93fe23677bc533 (patch)
tree3f4bb5a27c90cc86994a1f6d3c53fbf9208003cb /drivers/isdn/i4l/isdn_v110.c
parente45836fafe157df137a837093037f741ad8f4c90 (diff)
parentbbdb32cb5b73597386913d052165423b9d736145 (diff)
downloadlinux-3b59bf081622b6446db77ad06c93fe23677bc533.tar.xz
Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next
Pull networking merge from David Miller: "1) Move ixgbe driver over to purely page based buffering on receive. From Alexander Duyck. 2) Add receive packet steering support to e1000e, from Bruce Allan. 3) Convert TCP MD5 support over to RCU, from Eric Dumazet. 4) Reduce cpu usage in handling out-of-order TCP packets on modern systems, also from Eric Dumazet. 5) Support the IP{,V6}_UNICAST_IF socket options, making the wine folks happy, from Erich Hoover. 6) Support VLAN trunking from guests in hyperv driver, from Haiyang Zhang. 7) Support byte-queue-limtis in r8169, from Igor Maravic. 8) Outline code intended for IP_RECVTOS in IP_PKTOPTIONS existed but was never properly implemented, Jiri Benc fixed that. 9) 64-bit statistics support in r8169 and 8139too, from Junchang Wang. 10) Support kernel side dump filtering by ctmark in netfilter ctnetlink, from Pablo Neira Ayuso. 11) Support byte-queue-limits in gianfar driver, from Paul Gortmaker. 12) Add new peek socket options to assist with socket migration, from Pavel Emelyanov. 13) Add sch_plug packet scheduler whose queue is controlled by userland daemons using explicit freeze and release commands. From Shriram Rajagopalan. 14) Fix FCOE checksum offload handling on transmit, from Yi Zou." * git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next: (1846 commits) Fix pppol2tp getsockname() Remove printk from rds_sendmsg ipv6: fix incorrent ipv6 ipsec packet fragment cpsw: Hook up default ndo_change_mtu. net: qmi_wwan: fix build error due to cdc-wdm dependecy netdev: driver: ethernet: Add TI CPSW driver netdev: driver: ethernet: add cpsw address lookup engine support phy: add am79c874 PHY support mlx4_core: fix race on comm channel bonding: send igmp report for its master fs_enet: Add MPC5125 FEC support and PHY interface selection net: bpf_jit: fix BPF_S_LDX_B_MSH compilation net: update the usage of CHECKSUM_UNNECESSARY fcoe: use CHECKSUM_UNNECESSARY instead of CHECKSUM_PARTIAL on tx net: do not do gso for CHECKSUM_UNNECESSARY in netif_needs_gso ixgbe: Fix issues with SR-IOV loopback when flow control is disabled net/hyperv: Fix the code handling tx busy ixgbe: fix namespace issues when FCoE/DCB is not enabled rtlwifi: Remove unused ETH_ADDR_LEN defines igbvf: Use ETH_ALEN ... Fix up fairly trivial conflicts in drivers/isdn/gigaset/interface.c and drivers/net/usb/{Kconfig,qmi_wwan.c} as per David.
Diffstat (limited to 'drivers/isdn/i4l/isdn_v110.c')
-rw-r--r--drivers/isdn/i4l/isdn_v110.c294
1 files changed, 147 insertions, 147 deletions
diff --git a/drivers/isdn/i4l/isdn_v110.c b/drivers/isdn/i4l/isdn_v110.c
index c5d02b6aafab..52827a80c51f 100644
--- a/drivers/isdn/i4l/isdn_v110.c
+++ b/drivers/isdn/i4l/isdn_v110.c
@@ -26,8 +26,8 @@ char *isdn_v110_revision = "$Revision: 1.1.2.2 $";
#define V110_19200 15
#define V110_9600 3
-/*
- * The following data are precoded matrices, online and offline matrix
+/*
+ * The following data are precoded matrices, online and offline matrix
* for 9600, 19200 und 38400, respectively
*/
static unsigned char V110_OnMatrix_9600[] =
@@ -56,7 +56,7 @@ static unsigned char V110_OnMatrix_38400[] =
static unsigned char V110_OffMatrix_38400[] =
{0x00, 0xff, 0xff, 0xff, 0xff, 0xfd, 0xff, 0xff, 0xff, 0xff};
-/*
+/*
* FlipBits reorders sequences of keylen bits in one byte.
* E.g. source order 7654321 will be converted to 45670123 when keylen = 4,
* and to 67452301 when keylen = 2. This is necessary because ordering on
@@ -103,18 +103,18 @@ isdn_v110_open(unsigned char key, int hdrlen, int maxsize)
v->decodelen = 0;
switch (key) {
- case V110_38400:
- v->OnlineFrame = V110_OnMatrix_38400;
- v->OfflineFrame = V110_OffMatrix_38400;
- break;
- case V110_19200:
- v->OnlineFrame = V110_OnMatrix_19200;
- v->OfflineFrame = V110_OffMatrix_19200;
- break;
- default:
- v->OnlineFrame = V110_OnMatrix_9600;
- v->OfflineFrame = V110_OffMatrix_9600;
- break;
+ case V110_38400:
+ v->OnlineFrame = V110_OnMatrix_38400;
+ v->OfflineFrame = V110_OffMatrix_38400;
+ break;
+ case V110_19200:
+ v->OnlineFrame = V110_OnMatrix_19200;
+ v->OfflineFrame = V110_OffMatrix_19200;
+ break;
+ default:
+ v->OnlineFrame = V110_OnMatrix_9600;
+ v->OfflineFrame = V110_OffMatrix_9600;
+ break;
}
v->framelen = v->nbytes * 10;
v->SyncInit = 5;
@@ -132,7 +132,7 @@ isdn_v110_open(unsigned char key, int hdrlen, int maxsize)
/* isdn_v110_close frees private V.110 data structures */
void
-isdn_v110_close(isdn_v110_stream * v)
+isdn_v110_close(isdn_v110_stream *v)
{
if (v == NULL)
return;
@@ -144,11 +144,11 @@ isdn_v110_close(isdn_v110_stream * v)
}
-/*
- * ValidHeaderBytes return the number of valid bytes in v->decodebuf
+/*
+ * ValidHeaderBytes return the number of valid bytes in v->decodebuf
*/
static int
-ValidHeaderBytes(isdn_v110_stream * v)
+ValidHeaderBytes(isdn_v110_stream *v)
{
int i;
for (i = 0; (i < v->decodelen) && (i < v->nbytes); i++)
@@ -157,11 +157,11 @@ ValidHeaderBytes(isdn_v110_stream * v)
return i;
}
-/*
- * SyncHeader moves the decodebuf ptr to the next valid header
+/*
+ * SyncHeader moves the decodebuf ptr to the next valid header
*/
static void
-SyncHeader(isdn_v110_stream * v)
+SyncHeader(isdn_v110_stream *v)
{
unsigned char *rbuf = v->decodebuf;
int len = v->decodelen;
@@ -185,9 +185,9 @@ SyncHeader(isdn_v110_stream * v)
only complete matices must be given.
From these, netto data is extracted and returned in buf. The return-value
is the bytecount of the decoded data.
- */
+*/
static int
-DecodeMatrix(isdn_v110_stream * v, unsigned char *m, int len, unsigned char *buf)
+DecodeMatrix(isdn_v110_stream *v, unsigned char *m, int len, unsigned char *buf)
{
int line = 0;
int buflen = 0;
@@ -203,7 +203,7 @@ DecodeMatrix(isdn_v110_stream * v, unsigned char *m, int len, unsigned char *buf
printk(KERN_DEBUG "isdn_v110: DecodeMatrix, V110 Bad Header\n");
/* returning now is not the right thing, though :-( */
#endif
- }
+ }
line++; /* next line of matrix */
continue;
} else if ((line % 10) == 5) { /* in line 5 there's only e-bits ! */
@@ -217,7 +217,7 @@ DecodeMatrix(isdn_v110_stream * v, unsigned char *m, int len, unsigned char *buf
continue;
} else if (!introducer) { /* every byte starts with 10 (stopbit, startbit) */
introducer = (m[line] & mbit) ? 0 : 1; /* current bit of the matrix */
- next_byte:
+ next_byte:
if (mbit > 2) { /* was it the last bit in this line ? */
mbit >>= 1; /* no -> take next */
continue;
@@ -246,13 +246,13 @@ DecodeMatrix(isdn_v110_stream * v, unsigned char *m, int len, unsigned char *buf
return buflen; /* return number of bytes in the output buffer */
}
-/*
- * DecodeStream receives V.110 coded data from the input stream. It recovers the
+/*
+ * DecodeStream receives V.110 coded data from the input stream. It recovers the
* original frames.
* The input stream doesn't need to be framed
*/
struct sk_buff *
-isdn_v110_decode(isdn_v110_stream * v, struct sk_buff *skb)
+isdn_v110_decode(isdn_v110_stream *v, struct sk_buff *skb)
{
int i;
int j;
@@ -283,7 +283,7 @@ isdn_v110_decode(isdn_v110_stream * v, struct sk_buff *skb)
/* copy new data to decode-buffer */
memcpy(&(v->decodebuf[v->decodelen]), rbuf, len);
v->decodelen += len;
- ReSync:
+ReSync:
if (v->decodelen < v->nbytes) { /* got a new header ? */
dev_kfree_skb(skb);
return NULL; /* no, try later */
@@ -320,7 +320,7 @@ isdn_v110_decode(isdn_v110_stream * v, struct sk_buff *skb)
/* EncodeMatrix takes input data in buf, len is the bytecount.
Data is encoded into v110 frames in m. Return value is the number of
matrix-lines generated.
- */
+*/
static int
EncodeMatrix(unsigned char *buf, int len, unsigned char *m, int mlen)
{
@@ -333,14 +333,14 @@ EncodeMatrix(unsigned char *buf, int len, unsigned char *m, int mlen)
while ((i < len) && (line < mlen)) { /* while we still have input data */
switch (line % 10) { /* in which line of the matrix are we? */
- case 0:
- m[line++] = 0x00; /* line 0 is always 0 */
- mbit = 128; /* go on with the 7th bit */
- break;
- case 5:
- m[line++] = 0xbf; /* line 5 is always 10111111 */
- mbit = 128; /* go on with the 7th bit */
- break;
+ case 0:
+ m[line++] = 0x00; /* line 0 is always 0 */
+ mbit = 128; /* go on with the 7th bit */
+ break;
+ case 5:
+ m[line++] = 0xbf; /* line 5 is always 10111111 */
+ mbit = 128; /* go on with the 7th bit */
+ break;
}
if (line >= mlen) {
printk(KERN_WARNING "isdn_v110 (EncodeMatrix): buffer full!\n");
@@ -348,16 +348,16 @@ EncodeMatrix(unsigned char *buf, int len, unsigned char *m, int mlen)
}
next_bit:
switch (mbit) { /* leftmost or rightmost bit ? */
- case 1:
- line++; /* rightmost -> go to next line */
- if (line >= mlen) {
- printk(KERN_WARNING "isdn_v110 (EncodeMatrix): buffer full!\n");
- return line;
- }
- case 128:
- m[line] = 128; /* leftmost -> set byte to 1000000 */
- mbit = 64; /* current bit in the matrix line */
- continue;
+ case 1:
+ line++; /* rightmost -> go to next line */
+ if (line >= mlen) {
+ printk(KERN_WARNING "isdn_v110 (EncodeMatrix): buffer full!\n");
+ return line;
+ }
+ case 128:
+ m[line] = 128; /* leftmost -> set byte to 1000000 */
+ mbit = 64; /* current bit in the matrix line */
+ continue;
}
if (introducer) { /* set 110 sequence ? */
introducer--; /* set on digit less */
@@ -384,24 +384,24 @@ EncodeMatrix(unsigned char *buf, int len, unsigned char *m, int mlen)
/* if necessary, generate remaining lines of the matrix... */
if ((line) && ((line + 10) < mlen))
switch (++line % 10) {
- case 1:
- m[line++] = 0xfe;
- case 2:
- m[line++] = 0xfe;
- case 3:
- m[line++] = 0xfe;
- case 4:
- m[line++] = 0xfe;
- case 5:
- m[line++] = 0xbf;
- case 6:
- m[line++] = 0xfe;
- case 7:
- m[line++] = 0xfe;
- case 8:
- m[line++] = 0xfe;
- case 9:
- m[line++] = 0xfe;
+ case 1:
+ m[line++] = 0xfe;
+ case 2:
+ m[line++] = 0xfe;
+ case 3:
+ m[line++] = 0xfe;
+ case 4:
+ m[line++] = 0xfe;
+ case 5:
+ m[line++] = 0xbf;
+ case 6:
+ m[line++] = 0xfe;
+ case 7:
+ m[line++] = 0xfe;
+ case 8:
+ m[line++] = 0xfe;
+ case 9:
+ m[line++] = 0xfe;
}
return line; /* that's how many lines we have */
}
@@ -447,7 +447,7 @@ isdn_v110_idle(isdn_v110_stream *v)
}
struct sk_buff *
-isdn_v110_encode(isdn_v110_stream * v, struct sk_buff *skb)
+isdn_v110_encode(isdn_v110_stream *v, struct sk_buff *skb)
{
int i;
int j;
@@ -524,93 +524,93 @@ isdn_v110_stat_callback(int idx, isdn_ctrl *c)
if (idx < 0)
return 0;
switch (c->command) {
- case ISDN_STAT_BSENT:
- /* Keep the send-queue of the driver filled
- * with frames:
- * If number of outstanding frames < 3,
- * send down an Idle-Frame (or an Sync-Frame, if
- * v->SyncInit != 0).
- */
- if (!(v = dev->v110[idx]))
- return 0;
- atomic_inc(&dev->v110use[idx]);
- for (i=0; i * v->framelen < c->parm.length; i++) {
- if (v->skbidle > 0) {
- v->skbidle--;
- ret = 1;
+ case ISDN_STAT_BSENT:
+ /* Keep the send-queue of the driver filled
+ * with frames:
+ * If number of outstanding frames < 3,
+ * send down an Idle-Frame (or an Sync-Frame, if
+ * v->SyncInit != 0).
+ */
+ if (!(v = dev->v110[idx]))
+ return 0;
+ atomic_inc(&dev->v110use[idx]);
+ for (i = 0; i * v->framelen < c->parm.length; i++) {
+ if (v->skbidle > 0) {
+ v->skbidle--;
+ ret = 1;
+ } else {
+ if (v->skbuser > 0)
+ v->skbuser--;
+ ret = 0;
+ }
+ }
+ for (i = v->skbuser + v->skbidle; i < 2; i++) {
+ struct sk_buff *skb;
+ if (v->SyncInit > 0)
+ skb = isdn_v110_sync(v);
+ else
+ skb = isdn_v110_idle(v);
+ if (skb) {
+ if (dev->drv[c->driver]->interface->writebuf_skb(c->driver, c->arg, 1, skb) <= 0) {
+ dev_kfree_skb(skb);
+ break;
} else {
- if (v->skbuser > 0)
- v->skbuser--;
- ret = 0;
+ if (v->SyncInit)
+ v->SyncInit--;
+ v->skbidle++;
}
+ } else
+ break;
+ }
+ atomic_dec(&dev->v110use[idx]);
+ return ret;
+ case ISDN_STAT_DHUP:
+ case ISDN_STAT_BHUP:
+ while (1) {
+ atomic_inc(&dev->v110use[idx]);
+ if (atomic_dec_and_test(&dev->v110use[idx])) {
+ isdn_v110_close(dev->v110[idx]);
+ dev->v110[idx] = NULL;
+ break;
+ }
+ mdelay(1);
+ }
+ break;
+ case ISDN_STAT_BCONN:
+ if (dev->v110emu[idx] && (dev->v110[idx] == NULL)) {
+ int hdrlen = dev->drv[c->driver]->interface->hl_hdrlen;
+ int maxsize = dev->drv[c->driver]->interface->maxbufsize;
+ atomic_inc(&dev->v110use[idx]);
+ switch (dev->v110emu[idx]) {
+ case ISDN_PROTO_L2_V11096:
+ dev->v110[idx] = isdn_v110_open(V110_9600, hdrlen, maxsize);
+ break;
+ case ISDN_PROTO_L2_V11019:
+ dev->v110[idx] = isdn_v110_open(V110_19200, hdrlen, maxsize);
+ break;
+ case ISDN_PROTO_L2_V11038:
+ dev->v110[idx] = isdn_v110_open(V110_38400, hdrlen, maxsize);
+ break;
+ default:;
}
- for (i = v->skbuser + v->skbidle; i < 2; i++) {
- struct sk_buff *skb;
- if (v->SyncInit > 0)
- skb = isdn_v110_sync(v);
- else
- skb = isdn_v110_idle(v);
- if (skb) {
+ if ((v = dev->v110[idx])) {
+ while (v->SyncInit) {
+ struct sk_buff *skb = isdn_v110_sync(v);
if (dev->drv[c->driver]->interface->writebuf_skb(c->driver, c->arg, 1, skb) <= 0) {
dev_kfree_skb(skb);
+ /* Unable to send, try later */
break;
- } else {
- if (v->SyncInit)
- v->SyncInit--;
- v->skbidle++;
}
- } else
- break;
- }
- atomic_dec(&dev->v110use[idx]);
- return ret;
- case ISDN_STAT_DHUP:
- case ISDN_STAT_BHUP:
- while (1) {
- atomic_inc(&dev->v110use[idx]);
- if (atomic_dec_and_test(&dev->v110use[idx])) {
- isdn_v110_close(dev->v110[idx]);
- dev->v110[idx] = NULL;
- break;
+ v->SyncInit--;
+ v->skbidle++;
}
- mdelay(1);
- }
- break;
- case ISDN_STAT_BCONN:
- if (dev->v110emu[idx] && (dev->v110[idx] == NULL)) {
- int hdrlen = dev->drv[c->driver]->interface->hl_hdrlen;
- int maxsize = dev->drv[c->driver]->interface->maxbufsize;
- atomic_inc(&dev->v110use[idx]);
- switch (dev->v110emu[idx]) {
- case ISDN_PROTO_L2_V11096:
- dev->v110[idx] = isdn_v110_open(V110_9600, hdrlen, maxsize);
- break;
- case ISDN_PROTO_L2_V11019:
- dev->v110[idx] = isdn_v110_open(V110_19200, hdrlen, maxsize);
- break;
- case ISDN_PROTO_L2_V11038:
- dev->v110[idx] = isdn_v110_open(V110_38400, hdrlen, maxsize);
- break;
- default:;
- }
- if ((v = dev->v110[idx])) {
- while (v->SyncInit) {
- struct sk_buff *skb = isdn_v110_sync(v);
- if (dev->drv[c->driver]->interface->writebuf_skb(c->driver, c->arg, 1, skb) <= 0) {
- dev_kfree_skb(skb);
- /* Unable to send, try later */
- break;
- }
- v->SyncInit--;
- v->skbidle++;
- }
- } else
- printk(KERN_WARNING "isdn_v110: Couldn't open stream for chan %d\n", idx);
- atomic_dec(&dev->v110use[idx]);
- }
- break;
- default:
- return 0;
+ } else
+ printk(KERN_WARNING "isdn_v110: Couldn't open stream for chan %d\n", idx);
+ atomic_dec(&dev->v110use[idx]);
+ }
+ break;
+ default:
+ return 0;
}
return 0;
}