| /* $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; | 
 | } | 
 |  | 
 | /************************************************************** | 
 | 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_show     = hycapi_proc_show; | 
 | 		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; | 
 | } |