e15c1c1f3f
Komuro pointed out that IRQ_FIRST_SHARED is not used at all in the PCMCIA subsystem, so remove it. Also, remove two bogus assignments. CC: Karsten Keil <keil@b1-systems.de> CC: netdev@vger.kernel.org CC: alsa-devel@alsa-project.org CC: Komuro <komurojun-mbn@nifty.com> Signed-off-by: Dominik Brodowski <linux@dominikbrodowski.net>
307 lines
8.7 KiB
C
307 lines
8.7 KiB
C
/* $Id: avm_cs.c,v 1.4.6.3 2001/09/23 22:24:33 kai Exp $
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*
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* A PCMCIA client driver for AVM B1/M1/M2
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*
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* Copyright 1999 by Carsten Paeth <calle@calle.de>
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*
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* This software may be used and distributed according to the terms
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* of the GNU General Public License, incorporated herein by reference.
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*
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*/
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#include <linux/module.h>
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#include <linux/kernel.h>
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#include <linux/init.h>
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#include <linux/ptrace.h>
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#include <linux/slab.h>
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#include <linux/string.h>
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#include <linux/tty.h>
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#include <linux/serial.h>
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#include <linux/major.h>
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#include <asm/io.h>
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#include <asm/system.h>
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#include <pcmcia/cs_types.h>
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#include <pcmcia/cs.h>
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#include <pcmcia/cistpl.h>
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#include <pcmcia/ciscode.h>
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#include <pcmcia/ds.h>
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#include <pcmcia/cisreg.h>
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#include <linux/skbuff.h>
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#include <linux/capi.h>
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#include <linux/b1lli.h>
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#include <linux/b1pcmcia.h>
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/*====================================================================*/
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MODULE_DESCRIPTION("CAPI4Linux: PCMCIA client driver for AVM B1/M1/M2");
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MODULE_AUTHOR("Carsten Paeth");
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MODULE_LICENSE("GPL");
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/*====================================================================*/
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/*
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The event() function is this driver's Card Services event handler.
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It will be called by Card Services when an appropriate card status
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event is received. The config() and release() entry points are
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used to configure or release a socket, in response to card insertion
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and ejection events. They are invoked from the skeleton event
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handler.
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*/
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static int avmcs_config(struct pcmcia_device *link);
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static void avmcs_release(struct pcmcia_device *link);
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/*
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The attach() and detach() entry points are used to create and destroy
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"instances" of the driver, where each instance represents everything
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needed to manage one actual PCMCIA card.
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*/
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static void avmcs_detach(struct pcmcia_device *p_dev);
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/*
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A linked list of "instances" of the skeleton device. Each actual
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PCMCIA card corresponds to one device instance, and is described
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by one struct pcmcia_device structure (defined in ds.h).
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You may not want to use a linked list for this -- for example, the
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memory card driver uses an array of struct pcmcia_device pointers, where minor
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device numbers are used to derive the corresponding array index.
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*/
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/*
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A driver needs to provide a dev_node_t structure for each device
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on a card. In some cases, there is only one device per card (for
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example, ethernet cards, modems). In other cases, there may be
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many actual or logical devices (SCSI adapters, memory cards with
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multiple partitions). The dev_node_t structures need to be kept
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in a linked list starting at the 'dev' field of a struct pcmcia_device
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structure. We allocate them in the card's private data structure,
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because they generally can't be allocated dynamically.
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*/
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typedef struct local_info_t {
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dev_node_t node;
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} local_info_t;
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/*======================================================================
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avmcs_attach() creates an "instance" of the driver, allocating
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local data structures for one device. The device is registered
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with Card Services.
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The dev_link structure is initialized, but we don't actually
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configure the card at this point -- we wait until we receive a
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card insertion event.
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======================================================================*/
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static int avmcs_probe(struct pcmcia_device *p_dev)
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{
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local_info_t *local;
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/* The io structure describes IO port mapping */
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p_dev->io.NumPorts1 = 16;
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p_dev->io.Attributes1 = IO_DATA_PATH_WIDTH_8;
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p_dev->io.NumPorts2 = 0;
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/* Interrupt setup */
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p_dev->irq.Attributes = IRQ_TYPE_DYNAMIC_SHARING;
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/* General socket configuration */
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p_dev->conf.Attributes = CONF_ENABLE_IRQ;
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p_dev->conf.IntType = INT_MEMORY_AND_IO;
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p_dev->conf.ConfigIndex = 1;
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p_dev->conf.Present = PRESENT_OPTION;
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/* Allocate space for private device-specific data */
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local = kzalloc(sizeof(local_info_t), GFP_KERNEL);
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if (!local)
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goto err;
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p_dev->priv = local;
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return avmcs_config(p_dev);
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err:
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return -ENOMEM;
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} /* avmcs_attach */
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/*======================================================================
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This deletes a driver "instance". The device is de-registered
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with Card Services. If it has been released, all local data
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structures are freed. Otherwise, the structures will be freed
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when the device is released.
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======================================================================*/
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static void avmcs_detach(struct pcmcia_device *link)
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{
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avmcs_release(link);
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kfree(link->priv);
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} /* avmcs_detach */
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/*======================================================================
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avmcs_config() is scheduled to run after a CARD_INSERTION event
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is received, to configure the PCMCIA socket, and to make the
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ethernet device available to the system.
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======================================================================*/
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static int avmcs_configcheck(struct pcmcia_device *p_dev,
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cistpl_cftable_entry_t *cf,
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cistpl_cftable_entry_t *dflt,
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unsigned int vcc,
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void *priv_data)
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{
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if (cf->io.nwin <= 0)
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return -ENODEV;
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p_dev->io.BasePort1 = cf->io.win[0].base;
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p_dev->io.NumPorts1 = cf->io.win[0].len;
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p_dev->io.NumPorts2 = 0;
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printk(KERN_INFO "avm_cs: testing i/o %#x-%#x\n",
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p_dev->io.BasePort1,
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p_dev->io.BasePort1+p_dev->io.NumPorts1-1);
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return pcmcia_request_io(p_dev, &p_dev->io);
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}
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static int avmcs_config(struct pcmcia_device *link)
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{
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local_info_t *dev;
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int i;
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char devname[128];
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int cardtype;
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int (*addcard)(unsigned int port, unsigned irq);
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dev = link->priv;
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devname[0] = 0;
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if (link->prod_id[1])
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strlcpy(devname, link->prod_id[1], sizeof(devname));
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/*
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* find IO port
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*/
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if (pcmcia_loop_config(link, avmcs_configcheck, NULL))
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return -ENODEV;
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do {
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/*
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* allocate an interrupt line
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*/
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i = pcmcia_request_irq(link, &link->irq);
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if (i != 0) {
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/* undo */
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pcmcia_disable_device(link);
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break;
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}
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/*
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* configure the PCMCIA socket
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*/
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i = pcmcia_request_configuration(link, &link->conf);
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if (i != 0) {
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pcmcia_disable_device(link);
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break;
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}
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} while (0);
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/* At this point, the dev_node_t structure(s) should be
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initialized and arranged in a linked list at link->dev. */
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if (devname[0]) {
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char *s = strrchr(devname, ' ');
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if (!s)
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s = devname;
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else s++;
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strcpy(dev->node.dev_name, s);
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if (strcmp("M1", s) == 0) {
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cardtype = AVM_CARDTYPE_M1;
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} else if (strcmp("M2", s) == 0) {
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cardtype = AVM_CARDTYPE_M2;
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} else {
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cardtype = AVM_CARDTYPE_B1;
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}
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} else {
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strcpy(dev->node.dev_name, "b1");
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cardtype = AVM_CARDTYPE_B1;
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}
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dev->node.major = 64;
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dev->node.minor = 0;
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link->dev_node = &dev->node;
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/* If any step failed, release any partially configured state */
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if (i != 0) {
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avmcs_release(link);
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return -ENODEV;
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}
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switch (cardtype) {
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case AVM_CARDTYPE_M1: addcard = b1pcmcia_addcard_m1; break;
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case AVM_CARDTYPE_M2: addcard = b1pcmcia_addcard_m2; break;
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default:
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case AVM_CARDTYPE_B1: addcard = b1pcmcia_addcard_b1; break;
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}
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if ((i = (*addcard)(link->io.BasePort1, link->irq.AssignedIRQ)) < 0) {
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printk(KERN_ERR "avm_cs: failed to add AVM-%s-Controller at i/o %#x, irq %d\n",
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dev->node.dev_name, link->io.BasePort1, link->irq.AssignedIRQ);
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avmcs_release(link);
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return -ENODEV;
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}
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dev->node.minor = i;
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return 0;
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} /* avmcs_config */
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/*======================================================================
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After a card is removed, avmcs_release() will unregister the net
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device, and release the PCMCIA configuration. If the device is
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still open, this will be postponed until it is closed.
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======================================================================*/
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static void avmcs_release(struct pcmcia_device *link)
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{
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b1pcmcia_delcard(link->io.BasePort1, link->irq.AssignedIRQ);
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pcmcia_disable_device(link);
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} /* avmcs_release */
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static struct pcmcia_device_id avmcs_ids[] = {
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PCMCIA_DEVICE_PROD_ID12("AVM", "ISDN-Controller B1", 0x95d42008, 0x845dc335),
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PCMCIA_DEVICE_PROD_ID12("AVM", "Mobile ISDN-Controller M1", 0x95d42008, 0x81e10430),
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PCMCIA_DEVICE_PROD_ID12("AVM", "Mobile ISDN-Controller M2", 0x95d42008, 0x18e8558a),
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PCMCIA_DEVICE_NULL
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};
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MODULE_DEVICE_TABLE(pcmcia, avmcs_ids);
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static struct pcmcia_driver avmcs_driver = {
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.owner = THIS_MODULE,
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.drv = {
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.name = "avm_cs",
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},
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.probe = avmcs_probe,
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.remove = avmcs_detach,
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.id_table = avmcs_ids,
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};
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static int __init avmcs_init(void)
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{
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return pcmcia_register_driver(&avmcs_driver);
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}
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static void __exit avmcs_exit(void)
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{
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pcmcia_unregister_driver(&avmcs_driver);
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}
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module_init(avmcs_init);
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module_exit(avmcs_exit);
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