[mirror_ubuntu-artful-kernel.git] / drivers / isdn / hardware / avm / avm_cs.c

/* $Id: avm_cs.c,v 1.4.6.3 2001/09/23 22:24:33 kai Exp $
 *
 * A PCMCIA client driver for AVM B1/M1/M2
 *
 * Copyright 1999 by Carsten Paeth <calle@calle.de>
 *
 * 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/kernel.h>
#include <linux/init.h>
#include <linux/ptrace.h>
#include <linux/slab.h>
#include <linux/string.h>
#include <linux/tty.h>
#include <linux/serial.h>
#include <linux/major.h>
#include <asm/io.h>
#include <asm/system.h>

#include <pcmcia/cs_types.h>
#include <pcmcia/cs.h>
#include <pcmcia/cistpl.h>
#include <pcmcia/ciscode.h>
#include <pcmcia/ds.h>
#include <pcmcia/cisreg.h>

#include <linux/skbuff.h>
#include <linux/capi.h>
#include <linux/b1lli.h>
#include <linux/b1pcmcia.h>

/*====================================================================*/

MODULE_DESCRIPTION("CAPI4Linux: PCMCIA client driver for AVM B1/M1/M2");
MODULE_AUTHOR("Carsten Paeth");
MODULE_LICENSE("GPL");

/*====================================================================*/

/*
   The event() function is this driver's Card Services event handler.
   It will be called by Card Services when an appropriate card status
   event is received.  The config() and release() entry points are
   used to configure or release a socket, in response to card insertion
   and ejection events.  They are invoked from the skeleton event
   handler.
*/

static int avmcs_config(struct pcmcia_device *link);
static void avmcs_release(struct pcmcia_device *link);

/*
   The attach() and detach() entry points are used to create and destroy
   "instances" of the driver, where each instance represents everything
   needed to manage one actual PCMCIA card.
*/

static void avmcs_detach(struct pcmcia_device *p_dev);

/*======================================================================

    avmcs_attach() creates an "instance" of the driver, allocating
    local data structures for one device.  The device is registered
    with Card Services.

    The dev_link structure is initialized, but we don't actually
    configure the card at this point -- we wait until we receive a
    card insertion event.
    
======================================================================*/

static int avmcs_probe(struct pcmcia_device *p_dev)
{

    /* The io structure describes IO port mapping */
    p_dev->io.NumPorts1 = 16;
    p_dev->io.Attributes1 = IO_DATA_PATH_WIDTH_8;
    p_dev->io.NumPorts2 = 0;

    /* General socket configuration */
    p_dev->conf.Attributes = CONF_ENABLE_IRQ;
    p_dev->conf.IntType = INT_MEMORY_AND_IO;
    p_dev->conf.ConfigIndex = 1;
    p_dev->conf.Present = PRESENT_OPTION;

    return avmcs_config(p_dev);
} /* avmcs_attach */

/*======================================================================

    This deletes a driver "instance".  The device is de-registered
    with Card Services.  If it has been released, all local data
    structures are freed.  Otherwise, the structures will be freed
    when the device is released.

======================================================================*/

static void avmcs_detach(struct pcmcia_device *link)
{
	avmcs_release(link);
} /* avmcs_detach */

/*======================================================================

    avmcs_config() is scheduled to run after a CARD_INSERTION event
    is received, to configure the PCMCIA socket, and to make the
    ethernet device available to the system.
    
======================================================================*/

static int avmcs_configcheck(struct pcmcia_device *p_dev,
			     cistpl_cftable_entry_t *cf,
			     cistpl_cftable_entry_t *dflt,
			     unsigned int vcc,
			     void *priv_data)
{
	if (cf->io.nwin <= 0)
		return -ENODEV;

	p_dev->io.BasePort1 = cf->io.win[0].base;
	p_dev->io.NumPorts1 = cf->io.win[0].len;
	p_dev->io.NumPorts2 = 0;
	printk(KERN_INFO "avm_cs: testing i/o %#x-%#x\n",
	       p_dev->io.BasePort1,
	       p_dev->io.BasePort1+p_dev->io.NumPorts1-1);
	return pcmcia_request_io(p_dev, &p_dev->io);
}

static int avmcs_config(struct pcmcia_device *link)
{
    int i = -1;
    char devname[128];
    int cardtype;
    int (*addcard)(unsigned int port, unsigned irq);

    devname[0] = 0;
    if (link->prod_id[1])
	    strlcpy(devname, link->prod_id[1], sizeof(devname));

    /*
     * find IO port
     */
    if (pcmcia_loop_config(link, avmcs_configcheck, NULL))
	    return -ENODEV;

    do {
	if (!link->irq) {
	    /* undo */
	    pcmcia_disable_device(link);
	    break;
	}

	/*
         * configure the PCMCIA socket
	  */
	i = pcmcia_request_configuration(link, &link->conf);
	if (i != 0) {
	    pcmcia_disable_device(link);
	    break;
	}

    } while (0);

    if (devname[0]) {
	char *s = strrchr(devname, ' ');
	if (!s)
	   s = devname;
	else s++;
        if (strcmp("M1", s) == 0) {
           cardtype = AVM_CARDTYPE_M1;
        } else if (strcmp("M2", s) == 0) {
           cardtype = AVM_CARDTYPE_M2;
	} else {
           cardtype = AVM_CARDTYPE_B1;
	}
    } else
        cardtype = AVM_CARDTYPE_B1;

    /* If any step failed, release any partially configured state */
    if (i != 0) {
	avmcs_release(link);
	return -ENODEV;
    }


    switch (cardtype) {
        case AVM_CARDTYPE_M1: addcard = b1pcmcia_addcard_m1; break;
        case AVM_CARDTYPE_M2: addcard = b1pcmcia_addcard_m2; break;
	default:
        case AVM_CARDTYPE_B1: addcard = b1pcmcia_addcard_b1; break;
    }
    if ((i = (*addcard)(link->io.BasePort1, link->irq)) < 0) {
	    dev_err(&link->dev, "avm_cs: failed to add AVM-Controller at i/o %#x, irq %d\n",
		    link->io.BasePort1, link->irq);
	    avmcs_release(link);
	    return -ENODEV;
    }
    return 0;

} /* avmcs_config */

/*======================================================================

    After a card is removed, avmcs_release() will unregister the net
    device, and release the PCMCIA configuration.  If the device is
    still open, this will be postponed until it is closed.
    
======================================================================*/

static void avmcs_release(struct pcmcia_device *link)
{
	b1pcmcia_delcard(link->io.BasePort1, link->irq);
	pcmcia_disable_device(link);
} /* avmcs_release */


static struct pcmcia_device_id avmcs_ids[] = {
	PCMCIA_DEVICE_PROD_ID12("AVM", "ISDN-Controller B1", 0x95d42008, 0x845dc335),
	PCMCIA_DEVICE_PROD_ID12("AVM", "Mobile ISDN-Controller M1", 0x95d42008, 0x81e10430),
	PCMCIA_DEVICE_PROD_ID12("AVM", "Mobile ISDN-Controller M2", 0x95d42008, 0x18e8558a),
	PCMCIA_DEVICE_NULL
};
MODULE_DEVICE_TABLE(pcmcia, avmcs_ids);

static struct pcmcia_driver avmcs_driver = {
	.owner	= THIS_MODULE,
	.drv	= {
		.name	= "avm_cs",
	},
	.probe = avmcs_probe,
	.remove	= avmcs_detach,
	.id_table = avmcs_ids,
};

static int __init avmcs_init(void)
{
	return pcmcia_register_driver(&avmcs_driver);
}

static void __exit avmcs_exit(void)
{
	pcmcia_unregister_driver(&avmcs_driver);
}

module_init(avmcs_init);
module_exit(avmcs_exit);
Commit	Line	Data
1da177e4 LT	1	/* $Id: avm_cs.c,v 1.4.6.3 2001/09/23 22:24:33 kai Exp $
	2	*
	3	* A PCMCIA client driver for AVM B1/M1/M2
	4	*
	5	* Copyright 1999 by Carsten Paeth <calle@calle.de>
	6	*
	7	* This software may be used and distributed according to the terms
	8	* of the GNU General Public License, incorporated herein by reference.
	9	*
	10	*/
	11
	12	#include <linux/module.h>
	13	#include <linux/kernel.h>
	14	#include <linux/init.h>
1da177e4 LT	15	#include <linux/ptrace.h>
	16	#include <linux/slab.h>
	17	#include <linux/string.h>
	18	#include <linux/tty.h>
	19	#include <linux/serial.h>
	20	#include <linux/major.h>
	21	#include <asm/io.h>
	22	#include <asm/system.h>
	23
1da177e4 LT	24	#include <pcmcia/cs_types.h>
	25	#include <pcmcia/cs.h>
	26	#include <pcmcia/cistpl.h>
	27	#include <pcmcia/ciscode.h>
	28	#include <pcmcia/ds.h>
	29	#include <pcmcia/cisreg.h>
	30
	31	#include <linux/skbuff.h>
	32	#include <linux/capi.h>
	33	#include <linux/b1lli.h>
	34	#include <linux/b1pcmcia.h>
	35
	36	/====================================================================/
	37
	38	MODULE_DESCRIPTION("CAPI4Linux: PCMCIA client driver for AVM B1/M1/M2");
	39	MODULE_AUTHOR("Carsten Paeth");
	40	MODULE_LICENSE("GPL");
	41
	42	/====================================================================/
	43
	44	/*
	45	The event() function is this driver's Card Services event handler.
	46	It will be called by Card Services when an appropriate card status
	47	event is received. The config() and release() entry points are
	48	used to configure or release a socket, in response to card insertion
	49	and ejection events. They are invoked from the skeleton event
	50	handler.
	51	*/
	52
15b99ac1	53	static int avmcs_config(struct pcmcia_device *link);
fba395ee	54	static void avmcs_release(struct pcmcia_device *link);
1da177e4 LT	55
	56	/*
	57	The attach() and detach() entry points are used to create and destroy
	58	"instances" of the driver, where each instance represents everything
	59	needed to manage one actual PCMCIA card.
	60	*/
	61
cc3b4866	62	static void avmcs_detach(struct pcmcia_device *p_dev);
1da177e4	63
1da177e4 LT	64	/*======================================================================
	65
	66	avmcs_attach() creates an "instance" of the driver, allocating
	67	local data structures for one device. The device is registered
	68	with Card Services.
	69
	70	The dev_link structure is initialized, but we don't actually
	71	configure the card at this point -- we wait until we receive a
	72	card insertion event.
	73
	74	======================================================================*/
	75
15b99ac1	76	static int avmcs_probe(struct pcmcia_device *p_dev)
1da177e4	77	{
f8cfa618	78
1da177e4	79	/* The io structure describes IO port mapping */
fd238232 DB	80	p_dev->io.NumPorts1 = 16;
	81	p_dev->io.Attributes1 = IO_DATA_PATH_WIDTH_8;
	82	p_dev->io.NumPorts2 = 0;
1da177e4	83
1da177e4	84	/* General socket configuration */
fd238232 DB	85	p_dev->conf.Attributes = CONF_ENABLE_IRQ;
	86	p_dev->conf.IntType = INT_MEMORY_AND_IO;
	87	p_dev->conf.ConfigIndex = 1;
	88	p_dev->conf.Present = PRESENT_OPTION;
1da177e4	89
15b99ac1	90	return avmcs_config(p_dev);
1da177e4 LT	91	} /* avmcs_attach */
	92
	93	/*======================================================================
	94
	95	This deletes a driver "instance". The device is de-registered
	96	with Card Services. If it has been released, all local data
	97	structures are freed. Otherwise, the structures will be freed
	98	when the device is released.
	99
	100	======================================================================*/
	101
fba395ee	102	static void avmcs_detach(struct pcmcia_device *link)
1da177e4	103	{
cc3b4866	104	avmcs_release(link);
1da177e4 LT	105	} /* avmcs_detach */
	106
	107	/*======================================================================
	108
	109	avmcs_config() is scheduled to run after a CARD_INSERTION event
	110	is received, to configure the PCMCIA socket, and to make the
	111	ethernet device available to the system.
	112
	113	======================================================================*/
	114
5fcd4da0 DB	115	static int avmcs_configcheck(struct pcmcia_device *p_dev,
5fcd4da0 DB	116	cistpl_cftable_entry_t *cf,
8e2fc39d	117	cistpl_cftable_entry_t *dflt,
ad913c11	118	unsigned int vcc,
5fcd4da0	119	void *priv_data)
1da177e4	120	{
5fcd4da0 DB	121	if (cf->io.nwin <= 0)
	122	return -ENODEV;
	123
5fcd4da0 DB	124	p_dev->io.BasePort1 = cf->io.win[0].base;
	125	p_dev->io.NumPorts1 = cf->io.win[0].len;
	126	p_dev->io.NumPorts2 = 0;
	127	printk(KERN_INFO "avm_cs: testing i/o %#x-%#x\n",
	128	p_dev->io.BasePort1,
	129	p_dev->io.BasePort1+p_dev->io.NumPorts1-1);
	130	return pcmcia_request_io(p_dev, &p_dev->io);
1da177e4 LT	131	}
1da177e4 LT	132
15b99ac1	133	static int avmcs_config(struct pcmcia_device *link)
1da177e4	134	{
eb14120f	135	int i = -1;
1da177e4 LT	136	char devname[128];
	137	int cardtype;
	138	int (*addcard)(unsigned int port, unsigned irq);
fba395ee	139
5fcd4da0 DB	140	devname[0] = 0;
	141	if (link->prod_id[1])
	142	strlcpy(devname, link->prod_id[1], sizeof(devname));
a9606fd3	143
5fcd4da0 DB	144	/*
	145	* find IO port
	146	*/
	147	if (pcmcia_loop_config(link, avmcs_configcheck, NULL))
	148	return -ENODEV;
50db3fdb	149
5fcd4da0	150	do {
eb14120f	151	if (!link->irq) {
50db3fdb	152	/* undo */
fba395ee	153	pcmcia_disable_device(link);
1da177e4 LT	154	break;
1da177e4 LT	155	}
50db3fdb	156
1da177e4 LT	157	/*
	158	* configure the PCMCIA socket
	159	*/
fba395ee	160	i = pcmcia_request_configuration(link, &link->conf);
4c89e88b	161	if (i != 0) {
fba395ee	162	pcmcia_disable_device(link);
1da177e4 LT	163	break;
	164	}
	165
	166	} while (0);
	167
1da177e4 LT	168	if (devname[0]) {
	169	char *s = strrchr(devname, ' ');
	170	if (!s)
	171	s = devname;
	172	else s++;
1da177e4 LT	173	if (strcmp("M1", s) == 0) {
	174	cardtype = AVM_CARDTYPE_M1;
	175	} else if (strcmp("M2", s) == 0) {
	176	cardtype = AVM_CARDTYPE_M2;
	177	} else {
	178	cardtype = AVM_CARDTYPE_B1;
	179	}
ded6a1a3	180	} else
1da177e4	181	cardtype = AVM_CARDTYPE_B1;
e2d40963	182
1da177e4 LT	183	/* If any step failed, release any partially configured state */
	184	if (i != 0) {
	185	avmcs_release(link);
15b99ac1	186	return -ENODEV;
1da177e4 LT	187	}
	188
	189
	190	switch (cardtype) {
	191	case AVM_CARDTYPE_M1: addcard = b1pcmcia_addcard_m1; break;
	192	case AVM_CARDTYPE_M2: addcard = b1pcmcia_addcard_m2; break;
	193	default:
	194	case AVM_CARDTYPE_B1: addcard = b1pcmcia_addcard_b1; break;
	195	}
eb14120f	196	if ((i = (*addcard)(link->io.BasePort1, link->irq)) < 0) {
ded6a1a3 DB	197	dev_err(&link->dev, "avm_cs: failed to add AVM-Controller at i/o %#x, irq %d\n",
	198	link->io.BasePort1, link->irq);
	199	avmcs_release(link);
	200	return -ENODEV;
1da177e4	201	}
15b99ac1	202	return 0;
1da177e4 LT	203
	204	} /* avmcs_config */
	205
	206	/*======================================================================
	207
	208	After a card is removed, avmcs_release() will unregister the net
	209	device, and release the PCMCIA configuration. If the device is
	210	still open, this will be postponed until it is closed.
	211
	212	======================================================================*/
	213
fba395ee	214	static void avmcs_release(struct pcmcia_device *link)
1da177e4	215	{
eb14120f	216	b1pcmcia_delcard(link->io.BasePort1, link->irq);
fba395ee	217	pcmcia_disable_device(link);
1da177e4 LT	218	} /* avmcs_release */
1da177e4 LT	219
1da177e4	220
a13bcf0d DB	221	static struct pcmcia_device_id avmcs_ids[] = {
	222	PCMCIA_DEVICE_PROD_ID12("AVM", "ISDN-Controller B1", 0x95d42008, 0x845dc335),
	223	PCMCIA_DEVICE_PROD_ID12("AVM", "Mobile ISDN-Controller M1", 0x95d42008, 0x81e10430),
	224	PCMCIA_DEVICE_PROD_ID12("AVM", "Mobile ISDN-Controller M2", 0x95d42008, 0x18e8558a),
	225	PCMCIA_DEVICE_NULL
	226	};
	227	MODULE_DEVICE_TABLE(pcmcia, avmcs_ids);
	228
1da177e4 LT	229	static struct pcmcia_driver avmcs_driver = {
	230	.owner = THIS_MODULE,
	231	.drv = {
	232	.name = "avm_cs",
	233	},
15b99ac1	234	.probe = avmcs_probe,
cc3b4866	235	.remove = avmcs_detach,
a13bcf0d	236	.id_table = avmcs_ids,
1da177e4 LT	237	};
	238
	239	static int __init avmcs_init(void)
	240	{
	241	return pcmcia_register_driver(&avmcs_driver);
	242	}
	243
	244	static void __exit avmcs_exit(void)
	245	{
	246	pcmcia_unregister_driver(&avmcs_driver);
1da177e4 LT	247	}
	248
	249	module_init(avmcs_init);
	250	module_exit(avmcs_exit);