From 9ca8dbcc65cfc63d6f5ef3312a33184e1d726e00 Mon Sep 17 00:00:00 2001 From: Yunhong Jiang Date: Tue, 4 Aug 2015 12:17:53 -0700 Subject: Add the rt linux 4.1.3-rt3 as base Import the rt linux 4.1.3-rt3 as OPNFV kvm base. It's from git://git.kernel.org/pub/scm/linux/kernel/git/rt/linux-rt-devel.git linux-4.1.y-rt and the base is: commit 0917f823c59692d751951bf5ea699a2d1e2f26a2 Author: Sebastian Andrzej Siewior Date: Sat Jul 25 12:13:34 2015 +0200 Prepare v4.1.3-rt3 Signed-off-by: Sebastian Andrzej Siewior We lose all the git history this way and it's not good. We should apply another opnfv project repo in future. Change-Id: I87543d81c9df70d99c5001fbdf646b202c19f423 Signed-off-by: Yunhong Jiang --- kernel/drivers/isdn/pcbit/callbacks.c | 345 ++++++++++++++++++++++++++++++++++ 1 file changed, 345 insertions(+) create mode 100644 kernel/drivers/isdn/pcbit/callbacks.c (limited to 'kernel/drivers/isdn/pcbit/callbacks.c') diff --git a/kernel/drivers/isdn/pcbit/callbacks.c b/kernel/drivers/isdn/pcbit/callbacks.c new file mode 100644 index 000000000..efb6d6a36 --- /dev/null +++ b/kernel/drivers/isdn/pcbit/callbacks.c @@ -0,0 +1,345 @@ +/* + * Callbacks for the FSM + * + * 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. + */ + +/* + * Fix: 19981230 - Carlos Morgado + * Port of Nelson Escravana's fix to CalledPN + * NULL pointer dereference in cb_in_1 (originally fixed in 2.0) + */ + +#include +#include + +#include +#include +#include + +#include + +#include + +#include "pcbit.h" +#include "layer2.h" +#include "edss1.h" +#include "callbacks.h" +#include "capi.h" + +ushort last_ref_num = 1; + +/* + * send_conn_req + * + */ + +void cb_out_1(struct pcbit_dev *dev, struct pcbit_chan *chan, + struct callb_data *cbdata) +{ + struct sk_buff *skb; + int len; + ushort refnum; + + +#ifdef DEBUG + printk(KERN_DEBUG "Called Party Number: %s\n", + cbdata->data.setup.CalledPN); +#endif + /* + * hdr - kmalloc in capi_conn_req + * - kfree when msg has been sent + */ + + if ((len = capi_conn_req(cbdata->data.setup.CalledPN, &skb, + chan->proto)) < 0) + { + printk("capi_conn_req failed\n"); + return; + } + + + refnum = last_ref_num++ & 0x7fffU; + + chan->callref = 0; + chan->layer2link = 0; + chan->snum = 0; + chan->s_refnum = refnum; + + pcbit_l2_write(dev, MSG_CONN_REQ, refnum, skb, len); +} + +/* + * rcv CONNECT + * will go into ACTIVE state + * send CONN_ACTIVE_RESP + * send Select protocol request + */ + +void cb_out_2(struct pcbit_dev *dev, struct pcbit_chan *chan, + struct callb_data *data) +{ + isdn_ctrl ictl; + struct sk_buff *skb; + int len; + ushort refnum; + + if ((len = capi_conn_active_resp(chan, &skb)) < 0) + { + printk("capi_conn_active_req failed\n"); + return; + } + + refnum = last_ref_num++ & 0x7fffU; + chan->s_refnum = refnum; + + pcbit_l2_write(dev, MSG_CONN_ACTV_RESP, refnum, skb, len); + + + ictl.command = ISDN_STAT_DCONN; + ictl.driver = dev->id; + ictl.arg = chan->id; + dev->dev_if->statcallb(&ictl); + + /* ACTIVE D-channel */ + + /* Select protocol */ + + if ((len = capi_select_proto_req(chan, &skb, 1 /*outgoing*/)) < 0) { + printk("capi_select_proto_req failed\n"); + return; + } + + refnum = last_ref_num++ & 0x7fffU; + chan->s_refnum = refnum; + + pcbit_l2_write(dev, MSG_SELP_REQ, refnum, skb, len); +} + + +/* + * Incoming call received + * inform user + */ + +void cb_in_1(struct pcbit_dev *dev, struct pcbit_chan *chan, + struct callb_data *cbdata) +{ + isdn_ctrl ictl; + unsigned short refnum; + struct sk_buff *skb; + int len; + + + ictl.command = ISDN_STAT_ICALL; + ictl.driver = dev->id; + ictl.arg = chan->id; + + /* + * ictl.num >= strlen() + strlen() + 5 + */ + + if (cbdata->data.setup.CallingPN == NULL) { + printk(KERN_DEBUG "NULL CallingPN to phone; using 0\n"); + strcpy(ictl.parm.setup.phone, "0"); + } + else { + strcpy(ictl.parm.setup.phone, cbdata->data.setup.CallingPN); + } + if (cbdata->data.setup.CalledPN == NULL) { + printk(KERN_DEBUG "NULL CalledPN to eazmsn; using 0\n"); + strcpy(ictl.parm.setup.eazmsn, "0"); + } + else { + strcpy(ictl.parm.setup.eazmsn, cbdata->data.setup.CalledPN); + } + ictl.parm.setup.si1 = 7; + ictl.parm.setup.si2 = 0; + ictl.parm.setup.plan = 0; + ictl.parm.setup.screen = 0; + +#ifdef DEBUG + printk(KERN_DEBUG "statstr: %s\n", ictl.num); +#endif + + dev->dev_if->statcallb(&ictl); + + + if ((len = capi_conn_resp(chan, &skb)) < 0) { + printk(KERN_DEBUG "capi_conn_resp failed\n"); + return; + } + + refnum = last_ref_num++ & 0x7fffU; + chan->s_refnum = refnum; + + pcbit_l2_write(dev, MSG_CONN_RESP, refnum, skb, len); +} + +/* + * user has replied + * open the channel + * send CONNECT message CONNECT_ACTIVE_REQ in CAPI + */ + +void cb_in_2(struct pcbit_dev *dev, struct pcbit_chan *chan, + struct callb_data *data) +{ + unsigned short refnum; + struct sk_buff *skb; + int len; + + if ((len = capi_conn_active_req(chan, &skb)) < 0) { + printk(KERN_DEBUG "capi_conn_active_req failed\n"); + return; + } + + + refnum = last_ref_num++ & 0x7fffU; + chan->s_refnum = refnum; + + printk(KERN_DEBUG "sending MSG_CONN_ACTV_REQ\n"); + pcbit_l2_write(dev, MSG_CONN_ACTV_REQ, refnum, skb, len); +} + +/* + * CONN_ACK arrived + * start b-proto selection + * + */ + +void cb_in_3(struct pcbit_dev *dev, struct pcbit_chan *chan, + struct callb_data *data) +{ + unsigned short refnum; + struct sk_buff *skb; + int len; + + if ((len = capi_select_proto_req(chan, &skb, 0 /*incoming*/)) < 0) + { + printk("capi_select_proto_req failed\n"); + return; + } + + refnum = last_ref_num++ & 0x7fffU; + chan->s_refnum = refnum; + + pcbit_l2_write(dev, MSG_SELP_REQ, refnum, skb, len); + +} + + +/* + * Received disconnect ind on active state + * send disconnect resp + * send msg to user + */ +void cb_disc_1(struct pcbit_dev *dev, struct pcbit_chan *chan, + struct callb_data *data) +{ + struct sk_buff *skb; + int len; + ushort refnum; + isdn_ctrl ictl; + + if ((len = capi_disc_resp(chan, &skb)) < 0) { + printk("capi_disc_resp failed\n"); + return; + } + + refnum = last_ref_num++ & 0x7fffU; + chan->s_refnum = refnum; + + pcbit_l2_write(dev, MSG_DISC_RESP, refnum, skb, len); + + ictl.command = ISDN_STAT_BHUP; + ictl.driver = dev->id; + ictl.arg = chan->id; + dev->dev_if->statcallb(&ictl); +} + + +/* + * User HANGUP on active/call proceeding state + * send disc.req + */ +void cb_disc_2(struct pcbit_dev *dev, struct pcbit_chan *chan, + struct callb_data *data) +{ + struct sk_buff *skb; + int len; + ushort refnum; + + if ((len = capi_disc_req(chan->callref, &skb, CAUSE_NORMAL)) < 0) + { + printk("capi_disc_req failed\n"); + return; + } + + refnum = last_ref_num++ & 0x7fffU; + chan->s_refnum = refnum; + + pcbit_l2_write(dev, MSG_DISC_REQ, refnum, skb, len); +} + +/* + * Disc confirm received send BHUP + * Problem: when the HL driver sends the disc req itself + * LL receives BHUP + */ +void cb_disc_3(struct pcbit_dev *dev, struct pcbit_chan *chan, + struct callb_data *data) +{ + isdn_ctrl ictl; + + ictl.command = ISDN_STAT_BHUP; + ictl.driver = dev->id; + ictl.arg = chan->id; + dev->dev_if->statcallb(&ictl); +} + +void cb_notdone(struct pcbit_dev *dev, struct pcbit_chan *chan, + struct callb_data *data) +{ +} + +/* + * send activate b-chan protocol + */ +void cb_selp_1(struct pcbit_dev *dev, struct pcbit_chan *chan, + struct callb_data *data) +{ + struct sk_buff *skb; + int len; + ushort refnum; + + if ((len = capi_activate_transp_req(chan, &skb)) < 0) + { + printk("capi_conn_activate_transp_req failed\n"); + return; + } + + refnum = last_ref_num++ & 0x7fffU; + chan->s_refnum = refnum; + + pcbit_l2_write(dev, MSG_ACT_TRANSP_REQ, refnum, skb, len); +} + +/* + * Inform User that the B-channel is available + */ +void cb_open(struct pcbit_dev *dev, struct pcbit_chan *chan, + struct callb_data *data) +{ + isdn_ctrl ictl; + + ictl.command = ISDN_STAT_BCONN; + ictl.driver = dev->id; + ictl.arg = chan->id; + dev->dev_if->statcallb(&ictl); +} -- cgit 1.2.3-korg