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linux/drivers/net/wireless/orinoco/orinoco_cs.c
Dominik Brodowski 2262054e74 pcmcia: remove obsolete and wrong comments 
What's worse than no comment? A wrong comment.

Several PCMCIA device drivers contained the same comments, which
were based on how the PCMCIA subsystem worked in the old days of 2.4.,
and which were originally part of a "dummy_cs" driver. These comments
no longer matched at all what is happening now, and therefore should
be removed.

Tested-by: Wolfram Sang <w.sang@pengutronix.de>
Signed-off-by: Dominik Brodowski <linux@dominikbrodowski.net>
2010-09-29 17:20:25 +02:00

353 lines
14 KiB
C
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/* orinoco_cs.c (formerly known as dldwd_cs.c)
*
* A driver for "Hermes" chipset based PCMCIA wireless adaptors, such
* as the Lucent WavelanIEEE/Orinoco cards and their OEM (Cabletron/
* EnteraSys RoamAbout 802.11, ELSA Airlancer, Melco Buffalo and others).
* It should also be usable on various Prism II based cards such as the
* Linksys, D-Link and Farallon Skyline. It should also work on Symbol
* cards such as the 3Com AirConnect and Ericsson WLAN.
*
* Copyright notice & release notes in file main.c
*/
#define DRIVER_NAME "orinoco_cs"
#define PFX DRIVER_NAME ": "
#include <linux/module.h>
#include <linux/kernel.h>
#include <linux/init.h>
#include <linux/delay.h>
#include <pcmcia/cistpl.h>
#include <pcmcia/cisreg.h>
#include <pcmcia/ds.h>
#include "orinoco.h"
/********************************************************************/
/* Module stuff */
/********************************************************************/
MODULE_AUTHOR("David Gibson <hermes@gibson.dropbear.id.au>");
MODULE_DESCRIPTION("Driver for PCMCIA Lucent Orinoco,"
" Prism II based and similar wireless cards");
MODULE_LICENSE("Dual MPL/GPL");
/* Module parameters */
/* Some D-Link cards have buggy CIS. They do work at 5v properly, but
* don't have any CIS entry for it. This workaround it... */
static int ignore_cis_vcc; /* = 0 */
module_param(ignore_cis_vcc, int, 0);
MODULE_PARM_DESC(ignore_cis_vcc, "Allow voltage mismatch between card and socket");
/********************************************************************/
/* Data structures */
/********************************************************************/
/* PCMCIA specific device information (goes in the card field of
* struct orinoco_private */
struct orinoco_pccard {
struct pcmcia_device *p_dev;
/* Used to handle hard reset */
/* yuck, we need this hack to work around the insanity of the
* PCMCIA layer */
unsigned long hard_reset_in_progress;
};
/********************************************************************/
/* Function prototypes */
/********************************************************************/
static int orinoco_cs_config(struct pcmcia_device *link);
static void orinoco_cs_release(struct pcmcia_device *link);
static void orinoco_cs_detach(struct pcmcia_device *p_dev);
/********************************************************************/
/* Device methods */
/********************************************************************/
static int
orinoco_cs_hard_reset(struct orinoco_private *priv)
{
struct orinoco_pccard *card = priv->card;
struct pcmcia_device *link = card->p_dev;
int err;
/* We need atomic ops here, because we're not holding the lock */
set_bit(0, &card->hard_reset_in_progress);
err = pcmcia_reset_card(link->socket);
if (err)
return err;
msleep(100);
clear_bit(0, &card->hard_reset_in_progress);
return 0;
}
/********************************************************************/
/* PCMCIA stuff */
/********************************************************************/
static int
orinoco_cs_probe(struct pcmcia_device *link)
{
struct orinoco_private *priv;
struct orinoco_pccard *card;
priv = alloc_orinocodev(sizeof(*card), &link->dev,
orinoco_cs_hard_reset, NULL);
if (!priv)
return -ENOMEM;
card = priv->card;
/* Link both structures together */
card->p_dev = link;
link->priv = priv;
return orinoco_cs_config(link);
} /* orinoco_cs_attach */
static void orinoco_cs_detach(struct pcmcia_device *link)
{
struct orinoco_private *priv = link->priv;
orinoco_if_del(priv);
orinoco_cs_release(link);
free_orinocodev(priv);
} /* orinoco_cs_detach */
static int orinoco_cs_config_check(struct pcmcia_device *p_dev, void *priv_data)
{
if (p_dev->config_index == 0)
return -EINVAL;
return pcmcia_request_io(p_dev);
};
static int
orinoco_cs_config(struct pcmcia_device *link)
{
struct orinoco_private *priv = link->priv;
hermes_t *hw = &priv->hw;
int ret;
void __iomem *mem;
link->config_flags |= CONF_AUTO_SET_VPP | CONF_AUTO_CHECK_VCC |
CONF_AUTO_SET_IO | CONF_ENABLE_IRQ;
if (ignore_cis_vcc)
link->config_flags &= ~CONF_AUTO_CHECK_VCC;
ret = pcmcia_loop_config(link, orinoco_cs_config_check, NULL);
if (ret) {
if (!ignore_cis_vcc)
printk(KERN_ERR PFX "GetNextTuple(): No matching "
"CIS configuration. Maybe you need the "
"ignore_cis_vcc=1 parameter.\n");
goto failed;
}
ret = pcmcia_request_irq(link, orinoco_interrupt);
if (ret)
goto failed;
/* We initialize the hermes structure before completing PCMCIA
* configuration just in case the interrupt handler gets
* called. */
mem = ioport_map(link->resource[0]->start,
resource_size(link->resource[0]));
if (!mem)
goto failed;
hermes_struct_init(hw, mem, HERMES_16BIT_REGSPACING);
ret = pcmcia_enable_device(link);
if (ret)
goto failed;
/* Initialise the main driver */
if (orinoco_init(priv) != 0) {
printk(KERN_ERR PFX "orinoco_init() failed\n");
goto failed;
}
/* Register an interface with the stack */
if (orinoco_if_add(priv, link->resource[0]->start,
link->irq, NULL) != 0) {
printk(KERN_ERR PFX "orinoco_if_add() failed\n");
goto failed;
}
return 0;
failed:
orinoco_cs_release(link);
return -ENODEV;
} /* orinoco_cs_config */
static void
orinoco_cs_release(struct pcmcia_device *link)
{
struct orinoco_private *priv = link->priv;
unsigned long flags;
/* We're committed to taking the device away now, so mark the
* hardware as unavailable */
priv->hw.ops->lock_irqsave(&priv->lock, &flags);
priv->hw_unavailable++;
priv->hw.ops->unlock_irqrestore(&priv->lock, &flags);
pcmcia_disable_device(link);
if (priv->hw.iobase)
ioport_unmap(priv->hw.iobase);
} /* orinoco_cs_release */
static int orinoco_cs_suspend(struct pcmcia_device *link)
{
struct orinoco_private *priv = link->priv;
struct orinoco_pccard *card = priv->card;
/* This is probably racy, but I can't think of
a better way, short of rewriting the PCMCIA
layer to not suck :-( */
if (!test_bit(0, &card->hard_reset_in_progress))
orinoco_down(priv);
return 0;
}
static int orinoco_cs_resume(struct pcmcia_device *link)
{
struct orinoco_private *priv = link->priv;
struct orinoco_pccard *card = priv->card;
int err = 0;
if (!test_bit(0, &card->hard_reset_in_progress))
err = orinoco_up(priv);
return err;
}
/********************************************************************/
/* Module initialization */
/********************************************************************/
static struct pcmcia_device_id orinoco_cs_ids[] = {
PCMCIA_DEVICE_MANF_CARD(0x0101, 0x0777), /* 3Com AirConnect PCI 777A */
PCMCIA_DEVICE_MANF_CARD(0x0156, 0x0002), /* Lucent Orinoco and old Intersil */
PCMCIA_DEVICE_MANF_CARD(0x016b, 0x0001), /* Ericsson WLAN Card C11 */
PCMCIA_DEVICE_MANF_CARD(0x01eb, 0x080a), /* Nortel Networks eMobility 802.11 Wireless Adapter */
PCMCIA_DEVICE_MANF_CARD(0x0261, 0x0002), /* AirWay 802.11 Adapter (PCMCIA) */
PCMCIA_DEVICE_MANF_CARD(0x0268, 0x0001), /* ARtem Onair */
PCMCIA_DEVICE_MANF_CARD(0x0268, 0x0003), /* ARtem Onair Comcard 11 */
PCMCIA_DEVICE_MANF_CARD(0x026f, 0x0305), /* Buffalo WLI-PCM-S11 */
PCMCIA_DEVICE_MANF_CARD(0x02aa, 0x0002), /* ASUS SpaceLink WL-100 */
PCMCIA_DEVICE_MANF_CARD(0x02ac, 0x0002), /* SpeedStream SS1021 Wireless Adapter */
PCMCIA_DEVICE_MANF_CARD(0x02ac, 0x3021), /* SpeedStream Wireless Adapter */
PCMCIA_DEVICE_MANF_CARD(0x14ea, 0xb001), /* PLANEX RoadLannerWave GW-NS11H */
PCMCIA_DEVICE_PROD_ID12("3Com", "3CRWE737A AirConnect Wireless LAN PC Card", 0x41240e5b, 0x56010af3),
PCMCIA_DEVICE_PROD_ID12("Allied Telesyn", "AT-WCL452 Wireless PCMCIA Radio", 0x5cd01705, 0x4271660f),
PCMCIA_DEVICE_PROD_ID12("ASUS", "802_11B_CF_CARD_25", 0x78fc06ee, 0x45a50c1e),
PCMCIA_DEVICE_PROD_ID12("ASUS", "802_11b_PC_CARD_25", 0x78fc06ee, 0xdb9aa842),
PCMCIA_DEVICE_PROD_ID12("Avaya Communication", "Avaya Wireless PC Card", 0xd8a43b78, 0x0d341169),
PCMCIA_DEVICE_PROD_ID12("BENQ", "AWL100 PCMCIA ADAPTER", 0x35dadc74, 0x01f7fedb),
PCMCIA_DEVICE_PROD_ID12("Cabletron", "RoamAbout 802.11 DS", 0x32d445f5, 0xedeffd90),
PCMCIA_DEVICE_PROD_ID12("D-Link Corporation", "D-Link DWL-650H 11Mbps WLAN Adapter", 0xef544d24, 0xcd8ea916),
PCMCIA_DEVICE_PROD_ID12("ELSA", "AirLancer MC-11", 0x4507a33a, 0xef54f0e3),
PCMCIA_DEVICE_PROD_ID12("HyperLink", "Wireless PC Card 11Mbps", 0x56cc3f1a, 0x0bcf220c),
PCMCIA_DEVICE_PROD_ID12("Intel", "PRO/Wireless 2011 LAN PC Card", 0x816cc815, 0x07f58077),
PCMCIA_DEVICE_PROD_ID12("LeArtery", "SYNCBYAIR 11Mbps Wireless LAN PC Card", 0x7e3b326a, 0x49893e92),
PCMCIA_DEVICE_PROD_ID12("Lucent Technologies", "WaveLAN/IEEE", 0x23eb9949, 0xc562e72a),
PCMCIA_DEVICE_PROD_ID12("MELCO", "WLI-PCM-L11", 0x481e0094, 0x7360e410),
PCMCIA_DEVICE_PROD_ID12("MELCO", "WLI-PCM-L11G", 0x481e0094, 0xf57ca4b3),
PCMCIA_DEVICE_PROD_ID12("NCR", "WaveLAN/IEEE", 0x24358cd4, 0xc562e72a),
PCMCIA_DEVICE_PROD_ID12("Nortel Networks", "emobility 802.11 Wireless LAN PC Card", 0x2d617ea0, 0x88cd5767),
PCMCIA_DEVICE_PROD_ID12("OTC", "Wireless AirEZY 2411-PCC WLAN Card", 0x4ac44287, 0x235a6bed),
PCMCIA_DEVICE_PROD_ID12("PROXIM", "LAN PC CARD HARMONY 80211B", 0xc6536a5e, 0x090c3cd9),
PCMCIA_DEVICE_PROD_ID12("PROXIM", "LAN PCI CARD HARMONY 80211B", 0xc6536a5e, 0x9f494e26),
PCMCIA_DEVICE_PROD_ID12("SAMSUNG", "11Mbps WLAN Card", 0x43d74cb4, 0x579bd91b),
PCMCIA_DEVICE_PROD_ID12("Symbol Technologies", "LA4111 Spectrum24 Wireless LAN PC Card", 0x3f02b4d6, 0x3663cb0e),
#ifdef CONFIG_HERMES_PRISM
/* Only entries that certainly identify Prism chipset */
PCMCIA_DEVICE_MANF_CARD(0x000b, 0x7100), /* SonicWALL Long Range Wireless Card */
PCMCIA_DEVICE_MANF_CARD(0x000b, 0x7300), /* Sohoware NCP110, Philips 802.11b */
PCMCIA_DEVICE_MANF_CARD(0x0089, 0x0002), /* AnyPoint(TM) Wireless II PC Card */
PCMCIA_DEVICE_MANF_CARD(0x0126, 0x8000), /* PROXIM RangeLAN-DS/LAN PC CARD */
PCMCIA_DEVICE_MANF_CARD(0x0138, 0x0002), /* Compaq WL100 11 Mbps Wireless Adapter */
PCMCIA_DEVICE_MANF_CARD(0x01ff, 0x0008), /* Intermec MobileLAN 11Mbps 802.11b WLAN Card */
PCMCIA_DEVICE_MANF_CARD(0x0250, 0x0002), /* Samsung SWL2000-N 11Mb/s WLAN Card */
PCMCIA_DEVICE_MANF_CARD(0x0274, 0x1612), /* Linksys WPC11 Version 2.5 */
PCMCIA_DEVICE_MANF_CARD(0x0274, 0x1613), /* Linksys WPC11 Version 3 */
PCMCIA_DEVICE_MANF_CARD(0x028a, 0x0002), /* Compaq HNW-100 11 Mbps Wireless Adapter */
PCMCIA_DEVICE_MANF_CARD(0x028a, 0x0673), /* Linksys WCF12 Wireless CompactFlash Card */
PCMCIA_DEVICE_MANF_CARD(0x50c2, 0x7300), /* Airvast WN-100 */
PCMCIA_DEVICE_MANF_CARD(0x9005, 0x0021), /* Adaptec Ultra Wireless ANW-8030 */
PCMCIA_DEVICE_MANF_CARD(0xc001, 0x0008), /* CONTEC FLEXSCAN/FX-DDS110-PCC */
PCMCIA_DEVICE_MANF_CARD(0xc250, 0x0002), /* Conceptronic CON11Cpro, EMTAC A2424i */
PCMCIA_DEVICE_MANF_CARD(0xd601, 0x0002), /* Safeway 802.11b, ZCOMAX AirRunner/XI-300 */
PCMCIA_DEVICE_MANF_CARD(0xd601, 0x0005), /* D-Link DCF660, Sandisk Connect SDWCFB-000 */
PCMCIA_DEVICE_PROD_ID123("Instant Wireless ", " Network PC CARD", "Version 01.02", 0x11d901af, 0x6e9bd926, 0x4b74baa0),
PCMCIA_DEVICE_PROD_ID12("ACTIONTEC", "PRISM Wireless LAN PC Card", 0x393089da, 0xa71e69d5),
PCMCIA_DEVICE_PROD_ID12("Addtron", "AWP-100 Wireless PCMCIA", 0xe6ec52ce, 0x08649af2),
PCMCIA_DEVICE_PROD_ID12("BUFFALO", "WLI-CF-S11G", 0x2decece3, 0x82067c18),
PCMCIA_DEVICE_PROD_ID12("BUFFALO", "WLI-PCM-L11G", 0x2decece3, 0xf57ca4b3),
PCMCIA_DEVICE_PROD_ID12("Compaq", "WL200_11Mbps_Wireless_PCI_Card", 0x54f7c49c, 0x15a75e5b),
PCMCIA_DEVICE_PROD_ID12("corega K.K.", "Wireless LAN PCC-11", 0x5261440f, 0xa6405584),
PCMCIA_DEVICE_PROD_ID12("corega K.K.", "Wireless LAN PCCA-11", 0x5261440f, 0xdf6115f9),
PCMCIA_DEVICE_PROD_ID12("corega_K.K.", "Wireless_LAN_PCCB-11", 0x29e33311, 0xee7a27ae),
PCMCIA_DEVICE_PROD_ID12("Digital Data Communications", "WPC-0100", 0xfdd73470, 0xe0b6f146),
PCMCIA_DEVICE_PROD_ID12("D", "Link DRC-650 11Mbps WLAN Card", 0x71b18589, 0xf144e3ac),
PCMCIA_DEVICE_PROD_ID12("D", "Link DWL-650 11Mbps WLAN Card", 0x71b18589, 0xb6f1b0ab),
PCMCIA_DEVICE_PROD_ID12(" ", "IEEE 802.11 Wireless LAN/PC Card", 0x3b6e20c8, 0xefccafe9),
PCMCIA_DEVICE_PROD_ID12("INTERSIL", "HFA384x/IEEE", 0x74c5e40d, 0xdb472a18),
PCMCIA_DEVICE_PROD_ID12("INTERSIL", "I-GATE 11M PC Card / PC Card plus", 0x74c5e40d, 0x8304ff77),
PCMCIA_DEVICE_PROD_ID12("Intersil", "PRISM 2_5 PCMCIA ADAPTER", 0x4b801a17, 0x6345a0bf),
PCMCIA_DEVICE_PROD_ID12("Linksys", "Wireless CompactFlash Card", 0x0733cc81, 0x0c52f395),
PCMCIA_DEVICE_PROD_ID12("Microsoft", "Wireless Notebook Adapter MN-520", 0x5961bf85, 0x6eec8c01),
PCMCIA_DEVICE_PROD_ID12("NETGEAR MA401RA Wireless PC", "Card", 0x0306467f, 0x9762e8f1),
PCMCIA_DEVICE_PROD_ID12("NETGEAR MA401 Wireless PC", "Card", 0xa37434e9, 0x9762e8f1),
PCMCIA_DEVICE_PROD_ID12("OEM", "PRISM2 IEEE 802.11 PC-Card", 0xfea54c90, 0x48f2bdd6),
PCMCIA_DEVICE_PROD_ID12("PLANEX", "GeoWave/GW-CF110", 0x209f40ab, 0xd9715264),
PCMCIA_DEVICE_PROD_ID12("PLANEX", "GeoWave/GW-NS110", 0x209f40ab, 0x46263178),
PCMCIA_DEVICE_PROD_ID12("SMC", "SMC2532W-B EliteConnect Wireless Adapter", 0xc4f8b18b, 0x196bd757),
PCMCIA_DEVICE_PROD_ID12("SMC", "SMC2632W", 0xc4f8b18b, 0x474a1f2a),
PCMCIA_DEVICE_PROD_ID12("ZoomAir 11Mbps High", "Rate wireless Networking", 0x273fe3db, 0x32a1eaee),
PCMCIA_DEVICE_PROD_ID3("HFA3863", 0x355cb092),
PCMCIA_DEVICE_PROD_ID3("ISL37100P", 0x630d52b2),
PCMCIA_DEVICE_PROD_ID3("ISL37101P-10", 0xdd97a26b),
PCMCIA_DEVICE_PROD_ID3("ISL37300P", 0xc9049a39),
#endif
PCMCIA_DEVICE_NULL,
};
MODULE_DEVICE_TABLE(pcmcia, orinoco_cs_ids);
static struct pcmcia_driver orinoco_driver = {
.owner = THIS_MODULE,
.name = DRIVER_NAME,
.probe = orinoco_cs_probe,
.remove = orinoco_cs_detach,
.id_table = orinoco_cs_ids,
.suspend = orinoco_cs_suspend,
.resume = orinoco_cs_resume,
};
static int __init
init_orinoco_cs(void)
{
return pcmcia_register_driver(&orinoco_driver);
}
static void __exit
exit_orinoco_cs(void)
{
pcmcia_unregister_driver(&orinoco_driver);
}
module_init(init_orinoco_cs);
module_exit(exit_orinoco_cs);
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