[Feature]add MT2731_MP2_MR2_SVN388 baseline version

Change-Id: Ief04314834b31e27effab435d3ca8ba33b499059
diff --git a/src/kernel/linux/v4.14/drivers/isdn/hysdn/hycapi.c b/src/kernel/linux/v4.14/drivers/isdn/hysdn/hycapi.c
new file mode 100644
index 0000000..eac0f51
--- /dev/null
+++ b/src/kernel/linux/v4.14/drivers/isdn/hysdn/hycapi.c
@@ -0,0 +1,798 @@
+/* $Id: hycapi.c,v 1.8.6.4 2001/09/23 22:24:54 kai Exp $
+ *
+ * Linux driver for HYSDN cards, CAPI2.0-Interface.
+ *
+ * Author    Ulrich Albrecht <u.albrecht@hypercope.de> for Hypercope GmbH
+ * Copyright 2000 by Hypercope GmbH
+ *
+ * This software may be used and distributed according to the terms
+ * of the GNU General Public License, incorporated herein by reference.
+ *
+ */
+
+#include <linux/module.h>
+#include <linux/proc_fs.h>
+#include <linux/seq_file.h>
+#include <linux/signal.h>
+#include <linux/kernel.h>
+#include <linux/skbuff.h>
+#include <linux/netdevice.h>
+#include <linux/slab.h>
+
+#define	VER_DRIVER	0
+#define	VER_CARDTYPE	1
+#define	VER_HWID	2
+#define	VER_SERIAL	3
+#define	VER_OPTION	4
+#define	VER_PROTO	5
+#define	VER_PROFILE	6
+#define	VER_CAPI	7
+
+#include "hysdn_defs.h"
+#include <linux/kernelcapi.h>
+
+static char hycapi_revision[] = "$Revision: 1.8.6.4 $";
+
+unsigned int hycapi_enable = 0xffffffff;
+module_param(hycapi_enable, uint, 0);
+
+typedef struct _hycapi_appl {
+	unsigned int ctrl_mask;
+	capi_register_params rp;
+	struct sk_buff *listen_req[CAPI_MAXCONTR];
+} hycapi_appl;
+
+static hycapi_appl hycapi_applications[CAPI_MAXAPPL];
+
+static u16 hycapi_send_message(struct capi_ctr *ctrl, struct sk_buff *skb);
+
+static inline int _hycapi_appCheck(int app_id, int ctrl_no)
+{
+	if ((ctrl_no <= 0) || (ctrl_no > CAPI_MAXCONTR) || (app_id <= 0) ||
+	   (app_id > CAPI_MAXAPPL))
+	{
+		printk(KERN_ERR "HYCAPI: Invalid request app_id %d for controller %d", app_id, ctrl_no);
+		return -1;
+	}
+	return ((hycapi_applications[app_id - 1].ctrl_mask & (1 << (ctrl_no-1))) != 0);
+}
+
+/******************************
+Kernel-Capi callback reset_ctr
+******************************/
+
+static void
+hycapi_reset_ctr(struct capi_ctr *ctrl)
+{
+	hycapictrl_info *cinfo = ctrl->driverdata;
+
+#ifdef HYCAPI_PRINTFNAMES
+	printk(KERN_NOTICE "HYCAPI hycapi_reset_ctr\n");
+#endif
+	capilib_release(&cinfo->ncci_head);
+	capi_ctr_down(ctrl);
+}
+
+/******************************
+Kernel-Capi callback remove_ctr
+******************************/
+
+static void
+hycapi_remove_ctr(struct capi_ctr *ctrl)
+{
+	int i;
+	hycapictrl_info *cinfo = NULL;
+	hysdn_card *card = NULL;
+#ifdef HYCAPI_PRINTFNAMES
+	printk(KERN_NOTICE "HYCAPI hycapi_remove_ctr\n");
+#endif
+	cinfo = (hycapictrl_info *)(ctrl->driverdata);
+	if (!cinfo) {
+		printk(KERN_ERR "No hycapictrl_info set!");
+		return;
+	}
+	card = cinfo->card;
+	capi_ctr_suspend_output(ctrl);
+	for (i = 0; i < CAPI_MAXAPPL; i++) {
+		if (hycapi_applications[i].listen_req[ctrl->cnr - 1]) {
+			kfree_skb(hycapi_applications[i].listen_req[ctrl->cnr - 1]);
+			hycapi_applications[i].listen_req[ctrl->cnr - 1] = NULL;
+		}
+	}
+	detach_capi_ctr(ctrl);
+	ctrl->driverdata = NULL;
+	kfree(card->hyctrlinfo);
+
+
+	card->hyctrlinfo = NULL;
+}
+
+/***********************************************************
+
+Queue a CAPI-message to the controller.
+
+***********************************************************/
+
+static void
+hycapi_sendmsg_internal(struct capi_ctr *ctrl, struct sk_buff *skb)
+{
+	hycapictrl_info *cinfo = (hycapictrl_info *)(ctrl->driverdata);
+	hysdn_card *card = cinfo->card;
+
+	spin_lock_irq(&cinfo->lock);
+#ifdef HYCAPI_PRINTFNAMES
+	printk(KERN_NOTICE "hycapi_send_message\n");
+#endif
+	cinfo->skbs[cinfo->in_idx++] = skb;	/* add to buffer list */
+	if (cinfo->in_idx >= HYSDN_MAX_CAPI_SKB)
+		cinfo->in_idx = 0;	/* wrap around */
+	cinfo->sk_count++;		/* adjust counter */
+	if (cinfo->sk_count >= HYSDN_MAX_CAPI_SKB) {
+		/* inform upper layers we're full */
+		printk(KERN_ERR "HYSDN Card%d: CAPI-buffer overrun!\n",
+		       card->myid);
+		capi_ctr_suspend_output(ctrl);
+	}
+	cinfo->tx_skb = skb;
+	spin_unlock_irq(&cinfo->lock);
+	schedule_work(&card->irq_queue);
+}
+
+/***********************************************************
+hycapi_register_internal
+
+Send down the CAPI_REGISTER-Command to the controller.
+This functions will also be used if the adapter has been rebooted to
+re-register any applications in the private list.
+
+************************************************************/
+
+static void
+hycapi_register_internal(struct capi_ctr *ctrl, __u16 appl,
+			 capi_register_params *rp)
+{
+	char ExtFeatureDefaults[] = "49  /0/0/0/0,*/1,*/2,*/3,*/4,*/5,*/6,*/7,*/8,*/9,*";
+	hycapictrl_info *cinfo = (hycapictrl_info *)(ctrl->driverdata);
+	hysdn_card *card = cinfo->card;
+	struct sk_buff *skb;
+	__u16 len;
+	__u8 _command = 0xa0, _subcommand = 0x80;
+	__u16 MessageNumber = 0x0000;
+	__u16 MessageBufferSize = 0;
+	int slen = strlen(ExtFeatureDefaults);
+#ifdef HYCAPI_PRINTFNAMES
+	printk(KERN_NOTICE "hycapi_register_appl\n");
+#endif
+	MessageBufferSize = rp->level3cnt * rp->datablkcnt * rp->datablklen;
+
+	len = CAPI_MSG_BASELEN + 8 + slen + 1;
+	if (!(skb = alloc_skb(len, GFP_ATOMIC))) {
+		printk(KERN_ERR "HYSDN card%d: memory squeeze in hycapi_register_appl\n",
+		       card->myid);
+		return;
+	}
+	skb_put_data(skb, &len, sizeof(__u16));
+	skb_put_data(skb, &appl, sizeof(__u16));
+	skb_put_data(skb, &_command, sizeof(__u8));
+	skb_put_data(skb, &_subcommand, sizeof(__u8));
+	skb_put_data(skb, &MessageNumber, sizeof(__u16));
+	skb_put_data(skb, &MessageBufferSize, sizeof(__u16));
+	skb_put_data(skb, &(rp->level3cnt), sizeof(__u16));
+	skb_put_data(skb, &(rp->datablkcnt), sizeof(__u16));
+	skb_put_data(skb, &(rp->datablklen), sizeof(__u16));
+	skb_put_data(skb, ExtFeatureDefaults, slen);
+	hycapi_applications[appl - 1].ctrl_mask |= (1 << (ctrl->cnr - 1));
+	hycapi_send_message(ctrl, skb);
+}
+
+/************************************************************
+hycapi_restart_internal
+
+After an adapter has been rebootet, re-register all applications and
+send a LISTEN_REQ (if there has been such a thing )
+
+*************************************************************/
+
+static void hycapi_restart_internal(struct capi_ctr *ctrl)
+{
+	int i;
+	struct sk_buff *skb;
+#ifdef HYCAPI_PRINTFNAMES
+	printk(KERN_WARNING "HYSDN: hycapi_restart_internal");
+#endif
+	for (i = 0; i < CAPI_MAXAPPL; i++) {
+		if (_hycapi_appCheck(i + 1, ctrl->cnr) == 1) {
+			hycapi_register_internal(ctrl, i + 1,
+						 &hycapi_applications[i].rp);
+			if (hycapi_applications[i].listen_req[ctrl->cnr - 1]) {
+				skb = skb_copy(hycapi_applications[i].listen_req[ctrl->cnr - 1], GFP_ATOMIC);
+				hycapi_sendmsg_internal(ctrl, skb);
+			}
+		}
+	}
+}
+
+/*************************************************************
+Register an application.
+Error-checking is done for CAPI-compliance.
+
+The application is recorded in the internal list.
+*************************************************************/
+
+static void
+hycapi_register_appl(struct capi_ctr *ctrl, __u16 appl,
+		     capi_register_params *rp)
+{
+	int MaxLogicalConnections = 0, MaxBDataBlocks = 0, MaxBDataLen = 0;
+	hycapictrl_info *cinfo = (hycapictrl_info *)(ctrl->driverdata);
+	hysdn_card *card = cinfo->card;
+	int chk = _hycapi_appCheck(appl, ctrl->cnr);
+	if (chk < 0) {
+		return;
+	}
+	if (chk == 1) {
+		printk(KERN_INFO "HYSDN: apl %d already registered\n", appl);
+		return;
+	}
+	MaxBDataBlocks = rp->datablkcnt > CAPI_MAXDATAWINDOW ? CAPI_MAXDATAWINDOW : rp->datablkcnt;
+	rp->datablkcnt = MaxBDataBlocks;
+	MaxBDataLen = rp->datablklen < 1024 ? 1024 : rp->datablklen;
+	rp->datablklen = MaxBDataLen;
+
+	MaxLogicalConnections = rp->level3cnt;
+	if (MaxLogicalConnections < 0) {
+		MaxLogicalConnections = card->bchans * -MaxLogicalConnections;
+	}
+	if (MaxLogicalConnections == 0) {
+		MaxLogicalConnections = card->bchans;
+	}
+
+	rp->level3cnt = MaxLogicalConnections;
+	memcpy(&hycapi_applications[appl - 1].rp,
+	       rp, sizeof(capi_register_params));
+}
+
+/*********************************************************************
+
+hycapi_release_internal
+
+Send down a CAPI_RELEASE to the controller.
+*********************************************************************/
+
+static void hycapi_release_internal(struct capi_ctr *ctrl, __u16 appl)
+{
+	hycapictrl_info *cinfo = (hycapictrl_info *)(ctrl->driverdata);
+	hysdn_card *card = cinfo->card;
+	struct sk_buff *skb;
+	__u16 len;
+	__u8 _command = 0xa1, _subcommand = 0x80;
+	__u16 MessageNumber = 0x0000;
+
+	capilib_release_appl(&cinfo->ncci_head, appl);
+
+#ifdef HYCAPI_PRINTFNAMES
+	printk(KERN_NOTICE "hycapi_release_appl\n");
+#endif
+	len = CAPI_MSG_BASELEN;
+	if (!(skb = alloc_skb(len, GFP_ATOMIC))) {
+		printk(KERN_ERR "HYSDN card%d: memory squeeze in hycapi_register_appl\n",
+		       card->myid);
+		return;
+	}
+	skb_put_data(skb, &len, sizeof(__u16));
+	skb_put_data(skb, &appl, sizeof(__u16));
+	skb_put_data(skb, &_command, sizeof(__u8));
+	skb_put_data(skb, &_subcommand, sizeof(__u8));
+	skb_put_data(skb, &MessageNumber, sizeof(__u16));
+	hycapi_send_message(ctrl, skb);
+	hycapi_applications[appl - 1].ctrl_mask &= ~(1 << (ctrl->cnr - 1));
+}
+
+/******************************************************************
+hycapi_release_appl
+
+Release the application from the internal list an remove it's
+registration at controller-level
+******************************************************************/
+
+static void
+hycapi_release_appl(struct capi_ctr *ctrl, __u16 appl)
+{
+	int chk;
+
+	chk = _hycapi_appCheck(appl, ctrl->cnr);
+	if (chk < 0) {
+		printk(KERN_ERR "HYCAPI: Releasing invalid appl %d on controller %d\n", appl, ctrl->cnr);
+		return;
+	}
+	if (hycapi_applications[appl - 1].listen_req[ctrl->cnr - 1]) {
+		kfree_skb(hycapi_applications[appl - 1].listen_req[ctrl->cnr - 1]);
+		hycapi_applications[appl - 1].listen_req[ctrl->cnr - 1] = NULL;
+	}
+	if (chk == 1)
+	{
+		hycapi_release_internal(ctrl, appl);
+	}
+}
+
+
+/**************************************************************
+Kill a single controller.
+**************************************************************/
+
+int hycapi_capi_release(hysdn_card *card)
+{
+	hycapictrl_info *cinfo = card->hyctrlinfo;
+	struct capi_ctr *ctrl;
+#ifdef HYCAPI_PRINTFNAMES
+	printk(KERN_NOTICE "hycapi_capi_release\n");
+#endif
+	if (cinfo) {
+		ctrl = &cinfo->capi_ctrl;
+		hycapi_remove_ctr(ctrl);
+	}
+	return 0;
+}
+
+/**************************************************************
+hycapi_capi_stop
+
+Stop CAPI-Output on a card. (e.g. during reboot)
+***************************************************************/
+
+int hycapi_capi_stop(hysdn_card *card)
+{
+	hycapictrl_info *cinfo = card->hyctrlinfo;
+	struct capi_ctr *ctrl;
+#ifdef HYCAPI_PRINTFNAMES
+	printk(KERN_NOTICE "hycapi_capi_stop\n");
+#endif
+	if (cinfo) {
+		ctrl = &cinfo->capi_ctrl;
+/*		ctrl->suspend_output(ctrl); */
+		capi_ctr_down(ctrl);
+	}
+	return 0;
+}
+
+/***************************************************************
+hycapi_send_message
+
+Send a message to the controller.
+
+Messages are parsed for their Command/Subcommand-type, and appropriate
+action's are performed.
+
+Note that we have to muck around with a 64Bit-DATA_REQ as there are
+firmware-releases that do not check the MsgLen-Indication!
+
+***************************************************************/
+
+static u16 hycapi_send_message(struct capi_ctr *ctrl, struct sk_buff *skb)
+{
+	__u16 appl_id;
+	int _len, _len2;
+	__u8 msghead[64];
+	hycapictrl_info *cinfo = ctrl->driverdata;
+	u16 retval = CAPI_NOERROR;
+
+	appl_id = CAPIMSG_APPID(skb->data);
+	switch (_hycapi_appCheck(appl_id, ctrl->cnr))
+	{
+	case 0:
+/*			printk(KERN_INFO "Need to register\n"); */
+		hycapi_register_internal(ctrl,
+					 appl_id,
+					 &(hycapi_applications[appl_id - 1].rp));
+		break;
+	case 1:
+		break;
+	default:
+		printk(KERN_ERR "HYCAPI: Controller mixup!\n");
+		retval = CAPI_ILLAPPNR;
+		goto out;
+	}
+	switch (CAPIMSG_CMD(skb->data)) {
+	case CAPI_DISCONNECT_B3_RESP:
+		capilib_free_ncci(&cinfo->ncci_head, appl_id,
+				  CAPIMSG_NCCI(skb->data));
+		break;
+	case CAPI_DATA_B3_REQ:
+		_len = CAPIMSG_LEN(skb->data);
+		if (_len > 22) {
+			_len2 = _len - 22;
+			skb_copy_from_linear_data(skb, msghead, 22);
+			skb_copy_to_linear_data_offset(skb, _len2,
+						       msghead, 22);
+			skb_pull(skb, _len2);
+			CAPIMSG_SETLEN(skb->data, 22);
+			retval = capilib_data_b3_req(&cinfo->ncci_head,
+						     CAPIMSG_APPID(skb->data),
+						     CAPIMSG_NCCI(skb->data),
+						     CAPIMSG_MSGID(skb->data));
+		}
+		break;
+	case CAPI_LISTEN_REQ:
+		if (hycapi_applications[appl_id - 1].listen_req[ctrl->cnr - 1])
+		{
+			kfree_skb(hycapi_applications[appl_id - 1].listen_req[ctrl->cnr - 1]);
+			hycapi_applications[appl_id - 1].listen_req[ctrl->cnr - 1] = NULL;
+		}
+		if (!(hycapi_applications[appl_id  -1].listen_req[ctrl->cnr - 1] = skb_copy(skb, GFP_ATOMIC)))
+		{
+			printk(KERN_ERR "HYSDN: memory squeeze in private_listen\n");
+		}
+		break;
+	default:
+		break;
+	}
+out:
+	if (retval == CAPI_NOERROR)
+		hycapi_sendmsg_internal(ctrl, skb);
+	else
+		dev_kfree_skb_any(skb);
+
+	return retval;
+}
+
+static int hycapi_proc_show(struct seq_file *m, void *v)
+{
+	struct capi_ctr *ctrl = m->private;
+	hycapictrl_info *cinfo = (hycapictrl_info *)(ctrl->driverdata);
+	hysdn_card *card = cinfo->card;
+	char *s;
+
+	seq_printf(m, "%-16s %s\n", "name", cinfo->cardname);
+	seq_printf(m, "%-16s 0x%x\n", "io", card->iobase);
+	seq_printf(m, "%-16s %d\n", "irq", card->irq);
+
+	switch (card->brdtype) {
+	case BD_PCCARD:  s = "HYSDN Hycard"; break;
+	case BD_ERGO: s = "HYSDN Ergo2"; break;
+	case BD_METRO: s = "HYSDN Metro4"; break;
+	case BD_CHAMP2: s = "HYSDN Champ2";	break;
+	case BD_PLEXUS: s = "HYSDN Plexus30"; break;
+	default: s = "???"; break;
+	}
+	seq_printf(m, "%-16s %s\n", "type", s);
+	if ((s = cinfo->version[VER_DRIVER]) != NULL)
+		seq_printf(m, "%-16s %s\n", "ver_driver", s);
+	if ((s = cinfo->version[VER_CARDTYPE]) != NULL)
+		seq_printf(m, "%-16s %s\n", "ver_cardtype", s);
+	if ((s = cinfo->version[VER_SERIAL]) != NULL)
+		seq_printf(m, "%-16s %s\n", "ver_serial", s);
+
+	seq_printf(m, "%-16s %s\n", "cardname", cinfo->cardname);
+
+	return 0;
+}
+
+static int hycapi_proc_open(struct inode *inode, struct file *file)
+{
+	return single_open(file, hycapi_proc_show, PDE_DATA(inode));
+}
+
+static const struct file_operations hycapi_proc_fops = {
+	.owner		= THIS_MODULE,
+	.open		= hycapi_proc_open,
+	.read		= seq_read,
+	.llseek		= seq_lseek,
+	.release	= single_release,
+};
+
+/**************************************************************
+hycapi_load_firmware
+
+This does NOT load any firmware, but the callback somehow is needed
+on capi-interface registration.
+
+**************************************************************/
+
+static int hycapi_load_firmware(struct capi_ctr *ctrl, capiloaddata *data)
+{
+#ifdef HYCAPI_PRINTFNAMES
+	printk(KERN_NOTICE "hycapi_load_firmware\n");
+#endif
+	return 0;
+}
+
+
+static char *hycapi_procinfo(struct capi_ctr *ctrl)
+{
+	hycapictrl_info *cinfo = (hycapictrl_info *)(ctrl->driverdata);
+#ifdef HYCAPI_PRINTFNAMES
+	printk(KERN_NOTICE "%s\n", __func__);
+#endif
+	if (!cinfo)
+		return "";
+	sprintf(cinfo->infobuf, "%s %s 0x%x %d %s",
+		cinfo->cardname[0] ? cinfo->cardname : "-",
+		cinfo->version[VER_DRIVER] ? cinfo->version[VER_DRIVER] : "-",
+		cinfo->card ? cinfo->card->iobase : 0x0,
+		cinfo->card ? cinfo->card->irq : 0,
+		hycapi_revision
+		);
+	return cinfo->infobuf;
+}
+
+/******************************************************************
+hycapi_rx_capipkt
+
+Receive a capi-message.
+
+All B3_DATA_IND are converted to 64K-extension compatible format.
+New nccis are created if necessary.
+*******************************************************************/
+
+void
+hycapi_rx_capipkt(hysdn_card *card, unsigned char *buf, unsigned short len)
+{
+	struct sk_buff *skb;
+	hycapictrl_info *cinfo = card->hyctrlinfo;
+	struct capi_ctr *ctrl;
+	__u16 ApplId;
+	__u16 MsgLen, info;
+	__u16 len2, CapiCmd;
+	__u32 CP64[2] = {0, 0};
+#ifdef HYCAPI_PRINTFNAMES
+	printk(KERN_NOTICE "hycapi_rx_capipkt\n");
+#endif
+	if (!cinfo) {
+		return;
+	}
+	ctrl = &cinfo->capi_ctrl;
+	if (len < CAPI_MSG_BASELEN) {
+		printk(KERN_ERR "HYSDN Card%d: invalid CAPI-message, length %d!\n",
+		       card->myid, len);
+		return;
+	}
+	MsgLen = CAPIMSG_LEN(buf);
+	ApplId = CAPIMSG_APPID(buf);
+	CapiCmd = CAPIMSG_CMD(buf);
+
+	if ((CapiCmd == CAPI_DATA_B3_IND) && (MsgLen < 30)) {
+		len2 = len + (30 - MsgLen);
+		if (!(skb = alloc_skb(len2, GFP_ATOMIC))) {
+			printk(KERN_ERR "HYSDN Card%d: incoming packet dropped\n",
+			       card->myid);
+			return;
+		}
+		skb_put_data(skb, buf, MsgLen);
+		skb_put_data(skb, CP64, 2 * sizeof(__u32));
+		skb_put_data(skb, buf + MsgLen, len - MsgLen);
+		CAPIMSG_SETLEN(skb->data, 30);
+	} else {
+		if (!(skb = alloc_skb(len, GFP_ATOMIC))) {
+			printk(KERN_ERR "HYSDN Card%d: incoming packet dropped\n",
+			       card->myid);
+			return;
+		}
+		skb_put_data(skb, buf, len);
+	}
+	switch (CAPIMSG_CMD(skb->data))
+	{
+	case CAPI_CONNECT_B3_CONF:
+/* Check info-field for error-indication: */
+		info = CAPIMSG_U16(skb->data, 12);
+		switch (info)
+		{
+		case 0:
+			capilib_new_ncci(&cinfo->ncci_head, ApplId, CAPIMSG_NCCI(skb->data),
+					 hycapi_applications[ApplId - 1].rp.datablkcnt);
+
+			break;
+		case 0x0001:
+			printk(KERN_ERR "HYSDN Card%d: NCPI not supported by current "
+			       "protocol. NCPI ignored.\n", card->myid);
+			break;
+		case 0x2001:
+			printk(KERN_ERR "HYSDN Card%d: Message not supported in"
+			       " current state\n", card->myid);
+			break;
+		case 0x2002:
+			printk(KERN_ERR "HYSDN Card%d: invalid PLCI\n", card->myid);
+			break;
+		case 0x2004:
+			printk(KERN_ERR "HYSDN Card%d: out of NCCI\n", card->myid);
+			break;
+		case 0x3008:
+			printk(KERN_ERR "HYSDN Card%d: NCPI not supported\n",
+			       card->myid);
+			break;
+		default:
+			printk(KERN_ERR "HYSDN Card%d: Info in CONNECT_B3_CONF: %d\n",
+			       card->myid, info);
+			break;
+		}
+		break;
+	case CAPI_CONNECT_B3_IND:
+		capilib_new_ncci(&cinfo->ncci_head, ApplId,
+				 CAPIMSG_NCCI(skb->data),
+				 hycapi_applications[ApplId - 1].rp.datablkcnt);
+		break;
+	case CAPI_DATA_B3_CONF:
+		capilib_data_b3_conf(&cinfo->ncci_head, ApplId,
+				     CAPIMSG_NCCI(skb->data),
+				     CAPIMSG_MSGID(skb->data));
+		break;
+	default:
+		break;
+	}
+	capi_ctr_handle_message(ctrl, ApplId, skb);
+}
+
+/******************************************************************
+hycapi_tx_capiack
+
+Internally acknowledge a msg sent. This will remove the msg from the
+internal queue.
+
+*******************************************************************/
+
+void hycapi_tx_capiack(hysdn_card *card)
+{
+	hycapictrl_info *cinfo = card->hyctrlinfo;
+#ifdef HYCAPI_PRINTFNAMES
+	printk(KERN_NOTICE "hycapi_tx_capiack\n");
+#endif
+	if (!cinfo) {
+		return;
+	}
+	spin_lock_irq(&cinfo->lock);
+	kfree_skb(cinfo->skbs[cinfo->out_idx]);		/* free skb */
+	cinfo->skbs[cinfo->out_idx++] = NULL;
+	if (cinfo->out_idx >= HYSDN_MAX_CAPI_SKB)
+		cinfo->out_idx = 0;	/* wrap around */
+
+	if (cinfo->sk_count-- == HYSDN_MAX_CAPI_SKB)	/* dec usage count */
+		capi_ctr_resume_output(&cinfo->capi_ctrl);
+	spin_unlock_irq(&cinfo->lock);
+}
+
+/***************************************************************
+hycapi_tx_capiget(hysdn_card *card)
+
+This is called when polling for messages to SEND.
+
+****************************************************************/
+
+struct sk_buff *
+hycapi_tx_capiget(hysdn_card *card)
+{
+	hycapictrl_info *cinfo = card->hyctrlinfo;
+	if (!cinfo) {
+		return (struct sk_buff *)NULL;
+	}
+	if (!cinfo->sk_count)
+		return (struct sk_buff *)NULL;	/* nothing available */
+
+	return (cinfo->skbs[cinfo->out_idx]);		/* next packet to send */
+}
+
+
+/**********************************************************
+int hycapi_init()
+
+attach the capi-driver to the kernel-capi.
+
+***********************************************************/
+
+int hycapi_init(void)
+{
+	int i;
+	for (i = 0; i < CAPI_MAXAPPL; i++) {
+		memset(&(hycapi_applications[i]), 0, sizeof(hycapi_appl));
+	}
+	return (0);
+}
+
+/**************************************************************
+hycapi_cleanup(void)
+
+detach the capi-driver to the kernel-capi. Actually this should
+free some more ressources. Do that later.
+**************************************************************/
+
+void
+hycapi_cleanup(void)
+{
+}
+
+/********************************************************************
+hycapi_capi_create(hysdn_card *card)
+
+Attach the card with its capi-ctrl.
+*********************************************************************/
+
+static void hycapi_fill_profile(hysdn_card *card)
+{
+	hycapictrl_info *cinfo = NULL;
+	struct capi_ctr *ctrl = NULL;
+	cinfo = card->hyctrlinfo;
+	if (!cinfo) return;
+	ctrl = &cinfo->capi_ctrl;
+	strcpy(ctrl->manu, "Hypercope");
+	ctrl->version.majorversion = 2;
+	ctrl->version.minorversion = 0;
+	ctrl->version.majormanuversion = 3;
+	ctrl->version.minormanuversion = 2;
+	ctrl->profile.ncontroller = card->myid;
+	ctrl->profile.nbchannel = card->bchans;
+	ctrl->profile.goptions = GLOBAL_OPTION_INTERNAL_CONTROLLER |
+		GLOBAL_OPTION_B_CHANNEL_OPERATION;
+	ctrl->profile.support1 =  B1_PROT_64KBIT_HDLC |
+		(card->faxchans ? B1_PROT_T30 : 0) |
+		B1_PROT_64KBIT_TRANSPARENT;
+	ctrl->profile.support2 = B2_PROT_ISO7776 |
+		(card->faxchans ? B2_PROT_T30 : 0) |
+		B2_PROT_TRANSPARENT;
+	ctrl->profile.support3 = B3_PROT_TRANSPARENT |
+		B3_PROT_T90NL |
+		(card->faxchans ? B3_PROT_T30 : 0) |
+		(card->faxchans ? B3_PROT_T30EXT : 0) |
+		B3_PROT_ISO8208;
+}
+
+int
+hycapi_capi_create(hysdn_card *card)
+{
+	hycapictrl_info *cinfo = NULL;
+	struct capi_ctr *ctrl = NULL;
+	int retval;
+#ifdef HYCAPI_PRINTFNAMES
+	printk(KERN_NOTICE "hycapi_capi_create\n");
+#endif
+	if ((hycapi_enable & (1 << card->myid)) == 0) {
+		return 1;
+	}
+	if (!card->hyctrlinfo) {
+		cinfo = kzalloc(sizeof(hycapictrl_info), GFP_ATOMIC);
+		if (!cinfo) {
+			printk(KERN_WARNING "HYSDN: no memory for capi-ctrl.\n");
+			return -ENOMEM;
+		}
+		card->hyctrlinfo = cinfo;
+		cinfo->card = card;
+		spin_lock_init(&cinfo->lock);
+		INIT_LIST_HEAD(&cinfo->ncci_head);
+
+		switch (card->brdtype) {
+		case BD_PCCARD:  strcpy(cinfo->cardname, "HYSDN Hycard"); break;
+		case BD_ERGO: strcpy(cinfo->cardname, "HYSDN Ergo2"); break;
+		case BD_METRO: strcpy(cinfo->cardname, "HYSDN Metro4"); break;
+		case BD_CHAMP2: strcpy(cinfo->cardname, "HYSDN Champ2"); break;
+		case BD_PLEXUS: strcpy(cinfo->cardname, "HYSDN Plexus30"); break;
+		default: strcpy(cinfo->cardname, "HYSDN ???"); break;
+		}
+
+		ctrl = &cinfo->capi_ctrl;
+		ctrl->driver_name   = "hycapi";
+		ctrl->driverdata    = cinfo;
+		ctrl->register_appl = hycapi_register_appl;
+		ctrl->release_appl  = hycapi_release_appl;
+		ctrl->send_message  = hycapi_send_message;
+		ctrl->load_firmware = hycapi_load_firmware;
+		ctrl->reset_ctr     = hycapi_reset_ctr;
+		ctrl->procinfo      = hycapi_procinfo;
+		ctrl->proc_fops = &hycapi_proc_fops;
+		strcpy(ctrl->name, cinfo->cardname);
+		ctrl->owner = THIS_MODULE;
+
+		retval = attach_capi_ctr(ctrl);
+		if (retval) {
+			printk(KERN_ERR "hycapi: attach controller failed.\n");
+			return -EBUSY;
+		}
+		/* fill in the blanks: */
+		hycapi_fill_profile(card);
+		capi_ctr_ready(ctrl);
+	} else {
+		/* resume output on stopped ctrl */
+		ctrl = &card->hyctrlinfo->capi_ctrl;
+		hycapi_fill_profile(card);
+		capi_ctr_ready(ctrl);
+		hycapi_restart_internal(ctrl);
+/*		ctrl->resume_output(ctrl); */
+	}
+	return 0;
+}