summaryrefslogtreecommitdiffstats
path: root/drivers/isdn/pcbit/layer2.h
diff options
context:
space:
mode:
Diffstat (limited to 'drivers/isdn/pcbit/layer2.h')
-rw-r--r--drivers/isdn/pcbit/layer2.h265
1 files changed, 129 insertions, 136 deletions
diff --git a/drivers/isdn/pcbit/layer2.h b/drivers/isdn/pcbit/layer2.h
index 2ac295e1a6e5..be1327bc162a 100644
--- a/drivers/isdn/pcbit/layer2.h
+++ b/drivers/isdn/pcbit/layer2.h
@@ -2,17 +2,17 @@
* PCBIT-D low-layer interface definitions
*
* Copyright (C) 1996 Universidade de Lisboa
- *
+ *
* Written by Pedro Roque Marques (roque@di.fc.ul.pt)
*
- * This software may be used and distributed according to the terms of
+ * This software may be used and distributed according to the terms of
* the GNU General Public License, incorporated herein by reference.
*/
/*
* 19991203 - Fernando Carvalho - takion@superbofh.org
* Hacked to compile with egcs and run with current version of isdn modules
-*/
+ */
#ifndef LAYER2_H
#define LAYER2_H
@@ -37,8 +37,8 @@
/* TAM - XX - C - S - NUM */
#define PREHDR_LEN 8
-/* TT - M - I - TH - TD */
-#define FRAME_HDR_LEN 8
+/* TT - M - I - TH - TD */
+#define FRAME_HDR_LEN 8
#define MSG_CONN_REQ 0x08000100
#define MSG_CONN_CONF 0x00000101
@@ -84,21 +84,21 @@
#define MSG_DEBUG_188 0x0000ff00
/*
-
- long 4 3 2 1
- Intel 1 2 3 4
+
+ long 4 3 2 1
+ Intel 1 2 3 4
*/
#ifdef __LITTLE_ENDIAN
-#define SET_MSG_SCMD(msg, ch) (msg = (msg & 0xffffff00) | (((ch) & 0xff)))
-#define SET_MSG_CMD(msg, ch) (msg = (msg & 0xffff00ff) | (((ch) & 0xff) << 8))
-#define SET_MSG_PROC(msg, ch) (msg = (msg & 0xff00ffff) | (((ch) & 0xff) << 16))
-#define SET_MSG_CPU(msg, ch) (msg = (msg & 0x00ffffff) | (((ch) & 0xff) << 24))
+#define SET_MSG_SCMD(msg, ch) (msg = (msg & 0xffffff00) | (((ch) & 0xff)))
+#define SET_MSG_CMD(msg, ch) (msg = (msg & 0xffff00ff) | (((ch) & 0xff) << 8))
+#define SET_MSG_PROC(msg, ch) (msg = (msg & 0xff00ffff) | (((ch) & 0xff) << 16))
+#define SET_MSG_CPU(msg, ch) (msg = (msg & 0x00ffffff) | (((ch) & 0xff) << 24))
-#define GET_MSG_SCMD(msg) ((msg) & 0xFF)
-#define GET_MSG_CMD(msg) ((msg) >> 8 & 0xFF)
-#define GET_MSG_PROC(msg) ((msg) >> 16 & 0xFF)
-#define GET_MSG_CPU(msg) ((msg) >> 24)
+#define GET_MSG_SCMD(msg) ((msg) & 0xFF)
+#define GET_MSG_CMD(msg) ((msg) >> 8 & 0xFF)
+#define GET_MSG_PROC(msg) ((msg) >> 16 & 0xFF)
+#define GET_MSG_CPU(msg) ((msg) >> 24)
#else
#error "Non-Intel CPU"
@@ -109,60 +109,60 @@
#define SCHED_READ 0x01
#define SCHED_WRITE 0x02
-#define SET_RUN_TIMEOUT 2*HZ /* 2 seconds */
-
+#define SET_RUN_TIMEOUT 2 * HZ /* 2 seconds */
+
struct frame_buf {
- ulong msg;
- unsigned int refnum;
- unsigned int dt_len;
- unsigned int hdr_len;
- struct sk_buff *skb;
+ ulong msg;
+ unsigned int refnum;
+ unsigned int dt_len;
+ unsigned int hdr_len;
+ struct sk_buff *skb;
unsigned int copied;
- struct frame_buf * next;
+ struct frame_buf *next;
};
-extern int pcbit_l2_write(struct pcbit_dev * dev, ulong msg, ushort refnum,
- struct sk_buff *skb, unsigned short hdr_len);
+extern int pcbit_l2_write(struct pcbit_dev *dev, ulong msg, ushort refnum,
+ struct sk_buff *skb, unsigned short hdr_len);
extern irqreturn_t pcbit_irq_handler(int interrupt, void *);
-extern struct pcbit_dev * dev_pcbit[MAX_PCBIT_CARDS];
+extern struct pcbit_dev *dev_pcbit[MAX_PCBIT_CARDS];
#ifdef DEBUG
static __inline__ void log_state(struct pcbit_dev *dev) {
- printk(KERN_DEBUG "writeptr = %ld\n",
+ printk(KERN_DEBUG "writeptr = %ld\n",
(ulong) (dev->writeptr - dev->sh_mem));
- printk(KERN_DEBUG "readptr = %ld\n",
+ printk(KERN_DEBUG "readptr = %ld\n",
(ulong) (dev->readptr - (dev->sh_mem + BANK2)));
- printk(KERN_DEBUG "{rcv_seq=%01x, send_seq=%01x, unack_seq=%01x}\n",
+ printk(KERN_DEBUG "{rcv_seq=%01x, send_seq=%01x, unack_seq=%01x}\n",
dev->rcv_seq, dev->send_seq, dev->unack_seq);
}
#endif
-static __inline__ struct pcbit_dev * chan2dev(struct pcbit_chan * chan)
+static __inline__ struct pcbit_dev *chan2dev(struct pcbit_chan *chan)
{
- struct pcbit_dev * dev;
- int i;
+ struct pcbit_dev *dev;
+ int i;
- for (i=0; i<MAX_PCBIT_CARDS; i++)
- if ((dev=dev_pcbit[i]))
- if (dev->b1 == chan || dev->b2 == chan)
- return dev;
- return NULL;
+ for (i = 0; i < MAX_PCBIT_CARDS; i++)
+ if ((dev = dev_pcbit[i]))
+ if (dev->b1 == chan || dev->b2 == chan)
+ return dev;
+ return NULL;
}
-static __inline__ struct pcbit_dev * finddev(int id)
+static __inline__ struct pcbit_dev *finddev(int id)
{
- struct pcbit_dev * dev;
- int i;
-
- for (i=0; i<MAX_PCBIT_CARDS; i++)
- if ((dev=dev_pcbit[i]))
- if (dev->id == id)
- return dev;
- return NULL;
+ struct pcbit_dev *dev;
+ int i;
+
+ for (i = 0; i < MAX_PCBIT_CARDS; i++)
+ if ((dev = dev_pcbit[i]))
+ if (dev->id == id)
+ return dev;
+ return NULL;
}
@@ -172,117 +172,110 @@ static __inline__ struct pcbit_dev * finddev(int id)
static __inline__ void pcbit_writeb(struct pcbit_dev *dev, unsigned char dt)
{
- writeb(dt, dev->writeptr++);
- if (dev->writeptr == dev->sh_mem + BANKLEN)
- dev->writeptr = dev->sh_mem;
+ writeb(dt, dev->writeptr++);
+ if (dev->writeptr == dev->sh_mem + BANKLEN)
+ dev->writeptr = dev->sh_mem;
}
static __inline__ void pcbit_writew(struct pcbit_dev *dev, unsigned short dt)
{
- int dist;
-
- dist = BANKLEN - (dev->writeptr - dev->sh_mem);
- switch (dist) {
- case 2:
- writew(dt, dev->writeptr);
- dev->writeptr = dev->sh_mem;
- break;
- case 1:
- writeb((u_char) (dt & 0x00ffU), dev->writeptr);
- dev->writeptr = dev->sh_mem;
- writeb((u_char) (dt >> 8), dev->writeptr++);
- break;
- default:
- writew(dt, dev->writeptr);
- dev->writeptr += 2;
- break;
- };
+ int dist;
+
+ dist = BANKLEN - (dev->writeptr - dev->sh_mem);
+ switch (dist) {
+ case 2:
+ writew(dt, dev->writeptr);
+ dev->writeptr = dev->sh_mem;
+ break;
+ case 1:
+ writeb((u_char) (dt & 0x00ffU), dev->writeptr);
+ dev->writeptr = dev->sh_mem;
+ writeb((u_char) (dt >> 8), dev->writeptr++);
+ break;
+ default:
+ writew(dt, dev->writeptr);
+ dev->writeptr += 2;
+ break;
+ };
}
-static __inline__ void memcpy_topcbit(struct pcbit_dev * dev, u_char * data,
+static __inline__ void memcpy_topcbit(struct pcbit_dev *dev, u_char *data,
int len)
{
- int diff;
-
- diff = len - (BANKLEN - (dev->writeptr - dev->sh_mem) );
-
- if (diff > 0)
- {
- memcpy_toio(dev->writeptr, data, len - diff);
- memcpy_toio(dev->sh_mem, data + (len - diff), diff);
- dev->writeptr = dev->sh_mem + diff;
- }
- else
- {
- memcpy_toio(dev->writeptr, data, len);
-
- dev->writeptr += len;
- if (diff == 0)
- dev->writeptr = dev->sh_mem;
- }
+ int diff;
+
+ diff = len - (BANKLEN - (dev->writeptr - dev->sh_mem));
+
+ if (diff > 0)
+ {
+ memcpy_toio(dev->writeptr, data, len - diff);
+ memcpy_toio(dev->sh_mem, data + (len - diff), diff);
+ dev->writeptr = dev->sh_mem + diff;
+ }
+ else
+ {
+ memcpy_toio(dev->writeptr, data, len);
+
+ dev->writeptr += len;
+ if (diff == 0)
+ dev->writeptr = dev->sh_mem;
+ }
}
static __inline__ unsigned char pcbit_readb(struct pcbit_dev *dev)
{
- unsigned char val;
+ unsigned char val;
- val = readb(dev->readptr++);
- if (dev->readptr == dev->sh_mem + BANK2 + BANKLEN)
- dev->readptr = dev->sh_mem + BANK2;
+ val = readb(dev->readptr++);
+ if (dev->readptr == dev->sh_mem + BANK2 + BANKLEN)
+ dev->readptr = dev->sh_mem + BANK2;
- return val;
+ return val;
}
static __inline__ unsigned short pcbit_readw(struct pcbit_dev *dev)
{
- int dist;
- unsigned short val;
-
- dist = BANKLEN - ( dev->readptr - (dev->sh_mem + BANK2 ) );
- switch (dist) {
- case 2:
- val = readw(dev->readptr);
- dev->readptr = dev->sh_mem + BANK2;
- break;
- case 1:
- val = readb(dev->readptr);
- dev->readptr = dev->sh_mem + BANK2;
- val = (readb(dev->readptr++) << 8) | val;
- break;
- default:
- val = readw(dev->readptr);
- dev->readptr += 2;
- break;
- };
- return val;
+ int dist;
+ unsigned short val;
+
+ dist = BANKLEN - (dev->readptr - (dev->sh_mem + BANK2));
+ switch (dist) {
+ case 2:
+ val = readw(dev->readptr);
+ dev->readptr = dev->sh_mem + BANK2;
+ break;
+ case 1:
+ val = readb(dev->readptr);
+ dev->readptr = dev->sh_mem + BANK2;
+ val = (readb(dev->readptr++) << 8) | val;
+ break;
+ default:
+ val = readw(dev->readptr);
+ dev->readptr += 2;
+ break;
+ };
+ return val;
}
-static __inline__ void memcpy_frompcbit(struct pcbit_dev * dev, u_char * data, int len)
+static __inline__ void memcpy_frompcbit(struct pcbit_dev *dev, u_char *data, int len)
{
- int diff;
-
- diff = len - (BANKLEN - (dev->readptr - (dev->sh_mem + BANK2) ) );
- if (diff > 0)
- {
- memcpy_fromio(data, dev->readptr, len - diff);
- memcpy_fromio(data + (len - diff), dev->sh_mem + BANK2 , diff);
- dev->readptr = dev->sh_mem + BANK2 + diff;
- }
- else
- {
- memcpy_fromio(data, dev->readptr, len);
- dev->readptr += len;
- if (diff == 0)
- dev->readptr = dev->sh_mem + BANK2;
- }
+ int diff;
+
+ diff = len - (BANKLEN - (dev->readptr - (dev->sh_mem + BANK2)));
+ if (diff > 0)
+ {
+ memcpy_fromio(data, dev->readptr, len - diff);
+ memcpy_fromio(data + (len - diff), dev->sh_mem + BANK2 , diff);
+ dev->readptr = dev->sh_mem + BANK2 + diff;
+ }
+ else
+ {
+ memcpy_fromio(data, dev->readptr, len);
+ dev->readptr += len;
+ if (diff == 0)
+ dev->readptr = dev->sh_mem + BANK2;
+ }
}
#endif
-
-
-
-
-
-
-
generated by cgit v1.2.3 (git 2.39.1) at 2024-12-28 15:21:23 +0100