zte's code,first commit
Change-Id: I9a04da59e459a9bc0d67f101f700d9d7dc8d681b
diff --git a/ap/os/linux/linux-3.4.x/drivers/isdn/pcbit/layer2.h b/ap/os/linux/linux-3.4.x/drivers/isdn/pcbit/layer2.h
new file mode 100644
index 0000000..be1327b
--- /dev/null
+++ b/ap/os/linux/linux-3.4.x/drivers/isdn/pcbit/layer2.h
@@ -0,0 +1,281 @@
+/*
+ * 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
+ * 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
+
+#include <linux/interrupt.h>
+
+#include <asm/byteorder.h>
+
+#define BANK1 0x0000U /* PC -> Board */
+#define BANK2 0x01ffU /* Board -> PC */
+#define BANK3 0x03feU /* Att Board */
+#define BANK4 0x03ffU /* Att PC */
+
+#define BANKLEN 0x01FFU
+
+#define LOAD_ZONE_START 0x03f8U
+#define LOAD_ZONE_END 0x03fdU
+
+#define LOAD_RETRY 18000000
+
+
+
+/* TAM - XX - C - S - NUM */
+#define PREHDR_LEN 8
+/* TT - M - I - TH - TD */
+#define FRAME_HDR_LEN 8
+
+#define MSG_CONN_REQ 0x08000100
+#define MSG_CONN_CONF 0x00000101
+#define MSG_CONN_IND 0x00000102
+#define MSG_CONN_RESP 0x08000103
+
+#define MSG_CONN_ACTV_REQ 0x08000300
+#define MSG_CONN_ACTV_CONF 0x00000301
+#define MSG_CONN_ACTV_IND 0x00000302
+#define MSG_CONN_ACTV_RESP 0x08000303
+
+#define MSG_DISC_REQ 0x08000400
+#define MSG_DISC_CONF 0x00000401
+#define MSG_DISC_IND 0x00000402
+#define MSG_DISC_RESP 0x08000403
+
+#define MSG_TDATA_REQ 0x0908E200
+#define MSG_TDATA_CONF 0x0000E201
+#define MSG_TDATA_IND 0x0000E202
+#define MSG_TDATA_RESP 0x0908E203
+
+#define MSG_SELP_REQ 0x09004000
+#define MSG_SELP_CONF 0x00004001
+
+#define MSG_ACT_TRANSP_REQ 0x0908E000
+#define MSG_ACT_TRANSP_CONF 0x0000E001
+
+#define MSG_STPROT_REQ 0x09004100
+#define MSG_STPROT_CONF 0x00004101
+
+#define MSG_PING188_REQ 0x09030500
+#define MSG_PING188_CONF 0x000005bc
+
+#define MSG_WATCH188 0x09030400
+
+#define MSG_API_ON 0x08020102
+#define MSG_POOL_PCBIT 0x08020400
+#define MSG_POOL_PCBIT_CONF 0x00000401
+
+#define MSG_INFO_IND 0x00002602
+#define MSG_INFO_RESP 0x08002603
+
+#define MSG_DEBUG_188 0x0000ff00
+
+/*
+
+ 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 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"
+#endif
+
+#define MAX_QUEUED 7
+
+#define SCHED_READ 0x01
+#define SCHED_WRITE 0x02
+
+#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;
+ unsigned int copied;
+ 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 irqreturn_t pcbit_irq_handler(int interrupt, void *);
+
+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",
+ (ulong) (dev->writeptr - dev->sh_mem));
+ 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",
+ dev->rcv_seq, dev->send_seq, dev->unack_seq);
+}
+#endif
+
+static __inline__ struct pcbit_dev *chan2dev(struct pcbit_chan *chan)
+{
+ 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;
+
+}
+
+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;
+}
+
+
+/*
+ * Support routines for reading and writing in the board
+ */
+
+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;
+}
+
+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;
+ };
+}
+
+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;
+ }
+}
+
+static __inline__ unsigned char pcbit_readb(struct pcbit_dev *dev)
+{
+ unsigned char val;
+
+ val = readb(dev->readptr++);
+ if (dev->readptr == dev->sh_mem + BANK2 + BANKLEN)
+ dev->readptr = dev->sh_mem + BANK2;
+
+ 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;
+}
+
+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;
+ }
+}
+
+
+#endif