litmus-rt.git - The LITMUS^RT kernel.

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author	Linus Torvalds <torvalds@linux-foundation.org>	2009-05-10 13:49:31 -0400
committer	Linus Torvalds <torvalds@linux-foundation.org>	2009-05-10 13:49:31 -0400
commit	0016effb90589a87290a2ee721e34dc37e87b67c (patch)
tree	6e52adab5fd775a62edfad7f373916b8d1b31ba6 /net/tipc/net.c
parent	93b49d45eb97574057ee03dfdd590c209f5132f8 (diff)
parent	e67c85626cd02e306da1b4195bfaf68d61050796 (diff)

Merge git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core-2.6

* git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core-2.6: Revert driver core: move platform_data into platform_device Revert driver core: fix passing platform_data Remove old PRINTK_DEBUG config item Doc/sysfs-rules: Swap the order of the words so the sentence makes more sense Driver core: platform: fix kernel-doc warnings

Diffstat (limited to 'net/tipc/net.c')

0 files changed, 0 insertions, 0 deletions

/*** -*- linux-c -*- ********************************************************** Driver for Atmel at76c502 at76c504 and at76c506 wireless cards. Copyright 2000-2001 ATMEL Corporation. Copyright 2003 Simon Kelley. This code was developed from version 2.1.1 of the Atmel drivers, released by Atmel corp. under the GPL in December 2002. It also includes code from the Linux aironet drivers (C) Benjamin Reed, and the Linux PCMCIA package, (C) David Hinds. For all queries about this code, please contact the current author, Simon Kelley <simon@thekelleys.org.uk> and not Atmel Corporation. This program is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation; either version 2 of the License, or (at your option) any later version. This software is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details. You should have received a copy of the GNU General Public License along with Atmel wireless lan drivers; if not, write to the Free Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA ******************************************************************************/ #ifdef __IN_PCMCIA_PACKAGE__ #include <pcmcia/k_compat.h> #endif #include <linux/init.h> #include <linux/kernel.h> #include <linux/module.h> #include <linux/ptrace.h> #include <linux/slab.h> #include <linux/string.h> #include <linux/netdevice.h> #include <linux/moduleparam.h> #include <linux/device.h> #include <pcmcia/cs_types.h> #include <pcmcia/cs.h> #include <pcmcia/cistpl.h> #include <pcmcia/cisreg.h> #include <pcmcia/ds.h> #include <pcmcia/ciscode.h> #include <asm/io.h> #include <asm/system.h> #include <linux/wireless.h> #include "atmel.h" /*====================================================================*/ MODULE_AUTHOR("Simon Kelley"); MODULE_DESCRIPTION("Support for Atmel at76c50x 802.11 wireless ethernet cards."); MODULE_LICENSE("GPL"); MODULE_SUPPORTED_DEVICE("Atmel at76c50x PCMCIA cards"); /*====================================================================*/ /* 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 atmel_cs event handler. */ static int atmel_config(struct pcmcia_device *link); static void atmel_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 atmel_detach(struct pcmcia_device *p_dev); typedef struct local_info_t { struct net_device *eth_dev; } local_info_t; /*====================================================================== atmel_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 atmel_probe(struct pcmcia_device *p_dev) { local_info_t *local; dev_dbg(&p_dev->dev, "atmel_attach()\n"); /* General socket configuration defaults can go here. In this client, we assume very little, and rely on the CIS for almost everything. In most clients, many details (i.e., number, sizes, and attributes of IO windows) are fixed by the nature of the device, and can be hard-wired here. */ p_dev->conf.Attributes = 0; p_dev->conf.IntType = INT_MEMORY_AND_IO; /* Allocate space for private device-specific data */ local = kzalloc(sizeof(local_info_t), GFP_KERNEL); if (!local) { printk(KERN_ERR "atmel_cs: no memory for new device\n"); return -ENOMEM; } p_dev->priv = local; return atmel_config(p_dev); } /* atmel_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 atmel_detach(struct pcmcia_device *link) { dev_dbg(&link->dev, "atmel_detach\n"); atmel_release(link); kfree(link->priv); } /*====================================================================== atmel_config() is scheduled to run after a CARD_INSERTION event is received, to configure the PCMCIA socket, and to make the device available to the system. ======================================================================*/ /* Call-back function to interrogate PCMCIA-specific information about the current existance of the card */ static int card_present(void *arg) { struct pcmcia_device *link = (struct pcmcia_device *)arg; if (pcmcia_dev_present(link)) return 1; return 0; } static int atmel_config_check(struct pcmcia_device *p_dev, cistpl_cftable_entry_t *cfg, cistpl_cftable_entry_t *dflt, unsigned int vcc, void *priv_data) { if (cfg->index == 0) return -ENODEV; /* Does this card need audio output? */ if (cfg->flags & CISTPL_CFTABLE_AUDIO) { p_dev->conf.Attributes |= CONF_ENABLE_SPKR; p_dev->conf.Status = CCSR_AUDIO_ENA; } /* Use power settings for Vcc and Vpp if present */ /* Note that the CIS values need to be rescaled */ if (cfg->vpp1.present & (1<<CISTPL_POWER_VNOM)) p_dev->conf.Vpp = cfg->vpp1.param[CISTPL_POWER_VNOM]/10000; else if (dflt->vpp1.present & (1<<CISTPL_POWER_VNOM)) p_dev->conf.Vpp = dflt->vpp1.param[CISTPL_POWER_VNOM]/10000; p_dev->conf.Attributes |= CONF_ENABLE_IRQ; /* IO window settings */ p_dev->io.NumPorts1 = p_dev->io.NumPorts2 = 0; if ((cfg->io.nwin > 0) || (dflt->io.nwin > 0)) { cistpl_io_t *io = (cfg->io.nwin) ? &cfg->io : &dflt->io; p_dev->io.Attributes1 = IO_DATA_PATH_WIDTH_AUTO; if (!(io->flags & CISTPL_IO_8BIT)) p_dev->io.Attributes1 = IO_DATA_PATH_WIDTH_16; if (!(io->flags & CISTPL_IO_16BIT)) p_dev->io.Attributes1 = IO_DATA_PATH_WIDTH_8; p_dev->io.BasePort1 = io->win[0].base; p_dev->io.NumPorts1 = io->win[0].len; if (io->nwin > 1) { p_dev->io.Attributes2 = p_dev->io.Attributes1; p_dev->io.BasePort2 = io->win[1].base; p_dev->io.NumPorts2 = io->win[1].len; } } /* This reserves IO space but doesn't actually enable it */ return pcmcia_request_io(p_dev, &p_dev->io); } static int atmel_config(struct pcmcia_device *link) { local_info_t *dev; int ret; struct pcmcia_device_id *did; dev = link->priv; did = dev_get_drvdata(&link->dev); dev_dbg(&link->dev, "atmel_config\n"); /* In this loop, we scan the CIS for configuration table entries, each of which describes a valid card configuration, including voltage, IO window, memory window, and interrupt settings. We make no assumptions about the card to be configured: we use just the information available in the CIS. In an ideal world, this would work for any PCMCIA card, but it requires a complete and accurate CIS. In practice, a driver usually "knows" most of these things without consulting the CIS, and most client drivers will only use the CIS to fill in implementation-defined details. */ if (pcmcia_loop_config(link, atmel_config_check, NULL)) goto failed; if (!link->irq) { dev_err(&link->dev, "atmel: cannot assign IRQ: check that CONFIG_ISA is set in kernel config."); goto failed; } /* This actually configures the PCMCIA socket -- setting up the I/O windows and the interrupt mapping, and putting the card and host interface into "Memory and IO" mode. */ ret = pcmcia_request_configuration(link, &link->conf); if (ret) goto failed; ((local_info_t*)link->priv)->eth_dev = init_atmel_card(link->irq, link->io.BasePort1, did ? did->driver_info : ATMEL_FW_TYPE_NONE, &link->dev, card_present, link); if (!((local_info_t*)link->priv)->eth_dev) goto failed; return 0; failed: atmel_release(link); return -ENODEV; } /*====================================================================== After a card is removed, atmel_release() will unregister the device, and release the PCMCIA configuration. If the device is still open, this will be postponed until it is closed. ======================================================================*/ static void atmel_release(struct pcmcia_device *link) { struct net_device *dev = ((local_info_t*)link->priv)->eth_dev; dev_dbg(&link->dev, "atmel_release\n"); if (dev) stop_atmel_card(dev); ((local_info_t*)link->priv)->eth_dev = NULL; pcmcia_disable_device(link); } static int atmel_suspend(struct pcmcia_device *link) { local_info_t *local = link->priv;


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