prism2_cs.c

对于无线网卡采用prism芯片的linux的开源驱动.

#define WLAN_HOSTIF WLAN_PCMCIA
#include "hfa384x.c"
#include "prism2mgmt.c"
#include "prism2mib.c"
#include "prism2sta.c"

#if (LINUX_VERSION_CODE <= KERNEL_VERSION(2,4,21) )
#if (WLAN_CPU_FAMILY == WLAN_Ix86)
#ifndef CONFIG_ISA
#warning "You may need to enable ISA support in your kernel."
#endif
#endif
#endif

#if (LINUX_VERSION_CODE < KERNEL_VERSION(2,6,11) )
static u_int	irq_mask = 0xdeb8;		/* Interrupt mask */
static int	irq_list[4] = { -1 };		/* Interrupt list */
#endif
static u_int	prism2_ignorevcc=1;		/* Boolean, if set, we
						 * ignore what the Vcc
						 * is set to and what the CIS
						 * says.
						 */
module_param( prism2_ignorevcc, int, 0644);

#if (LINUX_VERSION_CODE < KERNEL_VERSION(2,6,11) )
#if (LINUX_VERSION_CODE <= KERNEL_VERSION(2,6,9))
static int numlist = 4;
module_param_array(irq_list, int, numlist, 0444);
#else
module_param_array(irq_list, int, NULL, 0444);
#endif
module_param( irq_mask, int, 0644);
#endif

#if LINUX_VERSION_CODE > KERNEL_VERSION(2,6,15)
static int prism2_cs_suspend(struct pcmcia_device *pdev);
static int prism2_cs_resume(struct pcmcia_device *pdev);
static void prism2_cs_remove(struct pcmcia_device *pdev);
static int prism2_cs_probe(struct pcmcia_device *pdev);
#else
dev_link_t	*prism2sta_attach(void);
static void	prism2sta_detach(dev_link_t *link);
static int	prism2sta_config(dev_link_t *link);
static void	prism2sta_release(u_long arg);
static int 	prism2sta_event (event_t event, int priority, event_callback_args_t *args);

static dev_link_t	*dev_list = NULL;	/* head of instance list */
#endif

#if (LINUX_VERSION_CODE < KERNEL_VERSION(2,5,68))
/*----------------------------------------------------------------
* cs_error
*
* Utility function to print card services error messages.
*
* Arguments:
*	handle	client handle identifying this CS client
*	func	CS function number that generated the error
*	ret	CS function return code
*
* Returns: 
*	nothing
* Side effects:
*
* Call context:
*	process thread
*	interrupt
----------------------------------------------------------------*/
static void cs_error(client_handle_t handle, int func, int ret)
{
#if (defined(CS_RELEASE_CODE) && (CS_RELEASE_CODE < 0x2911))
	CardServices(ReportError, dev_info, (void *)func, (void *)ret);
#else
	error_info_t err = { func, ret };
	pcmcia_report_error(handle, &err);
#endif
}
#else // kernel_version

#if LINUX_VERSION_CODE > KERNEL_VERSION(2,6,12)
static struct pcmcia_device_id prism2_cs_ids[] = {
	PCMCIA_DEVICE_PROD_ID12("INTERSIL",  "HFA384x/IEEE", 0x74c5e40d, 0xdb472a18), // Intersil PRISM2 Reference Design 11Mb/s 802.11b WLAN Card
	PCMCIA_DEVICE_MANF_CARD(0x0138, 0x0002), // Compaq WL100/200 11Mb/s 802.11b WLAN Card
	PCMCIA_DEVICE_MANF_CARD(0x028a, 0x0002), // Compaq iPaq HNW-100 11Mb/s 802.11b WLAN Card
	PCMCIA_DEVICE_MANF_CARD(0x0250, 0x0002), // Samsung SWL2000-N 11Mb/s 802.11b WLAN Card
	PCMCIA_DEVICE_MANF_CARD(0xd601, 0x0002), // Z-Com XI300 11Mb/s 802.11b WLAN Card
	PCMCIA_DEVICE_PROD_ID12("ZoomAir 11Mbps High",  "Rate wireless Networking", 0x273fe3db, 0x32a1eaee), // ZoomAir 4100 11Mb/s 802.11b WLAN Card
	PCMCIA_DEVICE_PROD_ID123("Instant Wireless ",  " Network PC CARD",  "Version 01.02", 0x11d901af, 0x6e9bd926, 0x4b74baa0), // Linksys WPC11 11Mbps 802.11b WLAN Card
	PCMCIA_DEVICE_PROD_ID123("Addtron",  "AWP-100 Wireless PCMCIA",  "Version 01.02", 0xe6ec52ce, 0x8649af2, 0x4b74baa0), // Addtron AWP-100 11Mbps 802.11b WLAN Card
	PCMCIA_DEVICE_PROD_ID123("D",  "Link DWL-650 11Mbps WLAN Card",  "Version 01.02", 0x71b18589, 0xb6f1b0ab, 0x4b74baa0), // D-Link DWL-650 11Mbps 802.11b WLAN Card
	PCMCIA_DEVICE_PROD_ID123("SMC",  "SMC2632W",  "Version 01.02", 0xc4f8b18b, 0x474a1f2a, 0x4b74baa0), // SMC 2632W 11Mbps 802.11b WLAN Card
	PCMCIA_DEVICE_PROD_ID1234("Intersil",  "PRISM 2_5 PCMCIA ADAPTER",  "ISL37300P",  "Eval-RevA", 0x4b801a17, 0x6345a0bf, 0xc9049a39, 0xc23adc0e), // BroMax Freeport 11Mbps 802.11b WLAN Card (Prism 2.5)
	PCMCIA_DEVICE_PROD_ID123("U.S. Robotics",  "IEEE 802.11b PC-CARD",  "Version 01.02", 0xc7b8df9d, 0x1700d087, 0x4b74baa0), // U.S. Robotics IEEE 802.11b PC-CARD
	PCMCIA_DEVICE_PROD_ID12("Digital Data Communications",  "WPC-0100", 0xfdd73470, 0xe0b6f146), // Level-One WPC-0100
	PCMCIA_DEVICE_MANF_CARD(0x0274, 0x1612), // Bromax OEM 11Mbps 802.11b WLAN Card (Prism 2.5)
	PCMCIA_DEVICE_MANF_CARD(0x0274, 0x1613), // Bromax OEM 11Mbps 802.11b WLAN Card (Prism 3)
	PCMCIA_DEVICE_PROD_ID12("corega K.K.",  "Wireless LAN PCC-11", 0x5261440f, 0xa6405584), // corega K.K. Wireless LAN PCC-11
	PCMCIA_DEVICE_PROD_ID12("corega K.K.",  "Wireless LAN PCCA-11", 0x5261440f, 0xdf6115f9), // corega K.K. Wireless LAN PCCA-11
	PCMCIA_DEVICE_MANF_CARD(0xc001, 0x0008), // CONTEC FLEXSCAN/FX-DDS110-PCC
	PCMCIA_DEVICE_PROD_ID12("PLANEX",  "GeoWave/GW-NS110", 0x209f40ab, 0x46263178), // PLANEX GeoWave/GW-NS110
	PCMCIA_DEVICE_PROD_ID123("OEM",  "PRISM2 IEEE 802.11 PC-Card",  "Version 01.02", 0xfea54c90, 0x48f2bdd6, 0x4b74baa0), // Ambicom WL1100 11Mbps 802.11b WLAN Card
	PCMCIA_DEVICE_PROD_ID123("LeArtery",  "SYNCBYAIR 11Mbps Wireless LAN PC Card",  "Version 01.02", 0x7e3b326a, 0x49893e92, 0x4b74baa0), // LeArtery SYNCBYAIR 11Mbps 802.11b WLAN Card
PCMCIA_DEVICE_MANF_CARD(0x01ff, 0x0008), // Intermec MobileLAN 11Mbps 802.11b WLAN Card
	PCMCIA_DEVICE_PROD_ID123("NETGEAR MA401 Wireless PC",  "Card",  "Version 01.00", 0xa37434e9, 0x9762e8f1, 0xa57adb8c), // NETGEAR MA401 11Mbps 802.11 WLAN Card
	PCMCIA_DEVICE_PROD_ID1234("Intersil",  "PRISM Freedom PCMCIA Adapter",  "ISL37100P",  "Eval-RevA", 0x4b801a17, 0xf222ec2d, 0x630d52b2, 0xc23adc0e), // Intersil PRISM Freedom 11mbps 802.11 WLAN Card
	PCMCIA_DEVICE_PROD_ID123("OTC",  "Wireless AirEZY 2411-PCC WLAN Card",  "Version 01.02", 0x4ac44287, 0x235a6bed, 0x4b74baa0), // OTC Wireless AirEZY 2411-PCC 11Mbps 802.11 WLAN Card
	PCMCIA_DEVICE_PROD_ID1234("802.11",  "11Mbps Wireless LAN Card",  "v08C1",  ""   , 0xb67a610e, 0x655aa7b7, 0x264b451a, 0x0), // Dynalink L11HDT 11Mbps 802.11 WLAN Card
	PCMCIA_DEVICE_MANF_CARD(0xc250, 0x0002), // Dynalink L11HDT 11Mbps 802.11 WLAN Card
	PCMCIA_DEVICE_PROD_ID12("PROXIM",  "RangeLAN-DS/LAN PC CARD", 0xc6536a5e, 0x3f35797d), // PROXIM RangeLAN-DS/LAN PC CARD
	PCMCIA_DEVICE_PROD_ID1234("ACTIONTEC",  "PRISM Wireless LAN PC Card",  "0381",  "RevA", 0x393089da, 0xa71e69d5, 0x90471fa9, 0x57a66194), // ACTIONTEC PRISM Wireless LAN PC Card
	PCMCIA_DEVICE_MANF_CARD(0x1668, 0x0101), // ACTIONTEC PRISM Wireless LAN PC Card
	PCMCIA_DEVICE_PROD_ID12("3Com",  "3CRWE737A AirConnect Wireless LAN PC Card", 0x41240e5b, 0x56010af3), // 3Com AirConnect 3CRWE737A
	PCMCIA_DEVICE_PROD_ID12("3Com",  "3CRWE777A AirConnect Wireless LAN PCI Card"  , 0x41240e5b, 0xafc7c33e), // 3Com AirConnect 3CRWE777A
	PCMCIA_DEVICE_PROD_ID12("ASUS",  "802_11b_PC_CARD_25", 0x78fc06ee, 0xdb9aa842), // ASUS WL-100 802.11b WLAN  PC Card
	PCMCIA_DEVICE_PROD_ID12("ASUS",  "802_11B_CF_CARD_25", 0x78fc06ee, 0x45a50c1e), // ASUS WL-110 802.11b WLAN CF Card
	PCMCIA_DEVICE_PROD_ID12("BUFFALO",  "WLI-CF-S11G", 0x2decece3, 0x82067c18), // BUFFALO WLI-CF-S11G 802.11b WLAN Card
	PCMCIA_DEVICE_PROD_ID1234("The Linksys Group, Inc.", "Wireless Network CF Card", "ISL37300P", "RevA", 0xa5f472c2, 0x9c05598d, 0xc9049a39, 0x57a66194), // Linksys WCF11 11Mbps 802.11b WLAN Card (Prism 2.5)
	PCMCIA_DEVICE_PROD_ID1234("Linksys",  "Wireless CompactFlash Card",  "",  "", 0x733cc81, 0xc52f395, 0x0, 0x0), // Linksys WCF12 11Mbps 802.11b WLAN Card (Prism 3)
	PCMCIA_DEVICE_MANF_CARD(0x028a, 0x0673), // Linksys WCF12 11Mbps 802.11b WLAN Card (Prism 3)
	PCMCIA_DEVICE_PROD_ID1234("NETGEAR MA401RA Wireless PC",  "Card",  "ISL37300P",  "Eval-RevA", 0x306467f, 0x9762e8f1, 0xc9049a39, 0xc23adc0e), // NETGEAR MA401RA 11Mbps 802.11 WLAN Card
	PCMCIA_DEVICE_MANF_CARD(0xd601, 0x0005), // D-Link DCF-660W  11Mbps 802.11b WLAN Card
	PCMCIA_DEVICE_MANF_CARD(0x02d2, 0x0001), // Microsoft Wireless Notebook Adapter MN-520
	PCMCIA_DEVICE_MANF_CARD(0x0089, 0x0002), // AnyPoint(TM) Wireless II PC Card
	PCMCIA_DEVICE_PROD_ID1234("D",  "Link DRC-650 11Mbps WLAN Card",  "Version 01.02",  "" , 0x71b18589, 0xf144e3ac, 0x4b74baa0, 0x0), // D-Link DRC-650 802.11b WLAN Card
	PCMCIA_DEVICE_MANF_CARD(0x9005, 0x0021), // Adaptec AWN-8030
	PCMCIA_DEVICE_MANF_CARD(0x000b, 0x7110), // D-Link DWL-650 rev P 802.11b WLAN card
	// PCMCIA_DEVICE_PROD_ID1234("D-Link",  "DWL-650 Wireless PC Card RevP",  "ISL37101P-10",  "A3", 0x1a424a1c, 0x6ea57632, 0xdd97a26b, 0x56b21f52), // D-Link DWL-650 rev P 802.11b WLAN card
	PCMCIA_DEVICE_PROD_ID123("INTERSIL",   "I-GATE 11M PC Card / PC Card plus",  "Version 01.02", 0x74c5e40d, 0x8304ff77, 0x4b74baa0), // I-Gate 11M PC Card
	PCMCIA_DEVICE_PROD_ID1234("BENQ",  "AWL100 PCMCIA ADAPTER",  "ISL37300P",  "Eval-RevA", 0x35dadc74, 0x1f7fedb, 0xc9049a39, 0xc23adc0e), // benQ AWL100 802.11b WLAN Card
	PCMCIA_DEVICE_MANF_CARD(0x000b, 0x7300), // benQ AWL100 802.11b WLAN Card
	// PCMCIA_DEVICE_PROD_ID1("INTERSIL", 0x74c5e40d), // Intersil Prism 2 card
	// PCMCIA_DEVICE_MANF_CARD(0x0156, 0x0002), // Intersil Prism 2 card

	PCMCIA_DEVICE_NULL
};

MODULE_DEVICE_TABLE(pcmcia, prism2_cs_ids);
#endif

static struct pcmcia_driver prism2_cs_driver = {
	.drv = { 
		.name = "prism2_cs",
	},
	.owner = THIS_MODULE,
#if LINUX_VERSION_CODE > KERNEL_VERSION(2,6,15)
	.suspend = prism2_cs_suspend,
	.resume = prism2_cs_resume,
	.remove = prism2_cs_remove,
	.probe = prism2_cs_probe,
	.id_table = prism2_cs_ids,
#else
	.attach = prism2sta_attach,
	.detach = prism2sta_detach,
#if LINUX_VERSION_CODE > KERNEL_VERSION(2,6,12)
	.id_table = prism2_cs_ids,
	.event =  prism2sta_event,
#endif // > 2.6.12
#endif // <= 2.6.15
};
#endif /* kernel_version */

#if LINUX_VERSION_CODE > KERNEL_VERSION(2,6,15)
#define CS_CHECK(fn, ret) \
do { last_fn = (fn); if ((last_ret = (ret)) != 0) goto cs_failed; } while (0)

#define CFG_CHECK(fn, retf) \
do { int ret = (retf); \
if (ret != 0) { \
        WLAN_LOG_DEBUG(1, "CardServices(" #fn ") returned %d\n", ret); \
        cs_error(pdev, fn, ret); \
        goto next_entry; \
} \
} while (0)

void prism2_cs_remove(struct pcmcia_device *pdev)
{
	struct wlandevice  *wlandev;

#if LINUX_VERSION_CODE < KERNEL_VERSION(2,6,17)
        dev_link_t *link = dev_to_instance(pdev);
#endif

	DBFENTER;

#if LINUX_VERSION_CODE > KERNEL_VERSION(2,6,16)
	wlandev = pdev->priv;
#else
	wlandev = link->priv;
#endif

	if (wlandev) {
		p80211netdev_hwremoved(wlandev);
		unregister_wlandev(wlandev);
		wlan_unsetup(wlandev);
		if (wlandev->priv) {
			hfa384x_t *hw = wlandev->priv;
			wlandev->priv = NULL;
			if (hw) {
				hfa384x_destroy(hw);
				kfree(hw);
			}
		}
		kfree(wlandev);
	}

#if LINUX_VERSION_CODE > KERNEL_VERSION(2,6,16)
	pdev->priv = NULL;
        pcmcia_disable_device(pdev);
#else
        if (link->state & DEV_CONFIG) {
	        if (link->win)
			pcmcia_release_window(link->win);
		pcmcia_release_configuration(link->handle);
		if (link->io.NumPorts1)
			pcmcia_release_io(link->handle, &link->io);
		if (link->irq.AssignedIRQ)
			pcmcia_release_irq(link->handle, &link->irq);
		
		link->state &= ~DEV_CONFIG;
	}

	link->priv = NULL;
	kfree(link);
#endif

	DBFEXIT;
	return;
}

int prism2_cs_suspend(struct pcmcia_device *pdev)
{
	struct wlandevice  *wlandev;

#if LINUX_VERSION_CODE < KERNEL_VERSION(2,6,17)
        dev_link_t *link = dev_to_instance(pdev);
#endif

	DBFENTER;

#if LINUX_VERSION_CODE > KERNEL_VERSION(2,6,16)
	wlandev = pdev->priv;
	prism2sta_ifstate(wlandev, P80211ENUM_ifstate_disable);
#else
	wlandev = link->priv;
#endif
	wlandev = link->priv;

        link->state |= DEV_SUSPEND;
        if (link->state & DEV_CONFIG) {	
		prism2sta_ifstate(wlandev, P80211ENUM_ifstate_disable);
		pcmcia_release_configuration(link->handle);
	}

	DBFEXIT;

	return 0;
}

int prism2_cs_resume(struct pcmcia_device *pdev)
{
	struct wlandevice  *wlandev;

#if LINUX_VERSION_CODE < KERNEL_VERSION(2,6,17)
        dev_link_t *link = dev_to_instance(pdev);
#endif

	DBFENTER;
	
#if LINUX_VERSION_CODE > KERNEL_VERSION(2,6,16)
	wlandev = pdev->priv;
	// XXX do something here?
#else
	wlandev = link->priv;
        link->state &= ~DEV_SUSPEND;
        if (link->state & DEV_CONFIG) {
                pcmcia_request_configuration(link->handle, &link->conf);
		// XXX do something here?
	}
#endif


	DBFEXIT;

	return 0;
}

int prism2_cs_probe(struct pcmcia_device *pdev)
{
	int rval = 0;
	struct wlandevice *wlandev = NULL;
	hfa384x_t *hw = NULL;

        config_info_t socketconf;
        cisparse_t *parse = NULL;
	tuple_t tuple;
	uint8_t	buf[64];
        int last_fn, last_ret;
        cistpl_cftable_entry_t dflt = { 0 };

#if LINUX_VERSION_CODE < KERNEL_VERSION(2,6,17)
	dev_link_t *link;
#endif

	DBFENTER;

#if LINUX_VERSION_CODE > KERNEL_VERSION(2,6,16)
	/* Set up interrupt type */
        pdev->conf.IntType = INT_MEMORY_AND_IO;
#else
        link = kmalloc(sizeof(dev_link_t), GFP_KERNEL);
        if (link == NULL)
                return -ENOMEM;
        memset(link, 0, sizeof(dev_link_t));
	
        link->conf.Vcc = 33;
        link->conf.IntType = INT_MEMORY_AND_IO;

        link->handle = pdev;
        pdev->instance = link;
        link->state |= DEV_PRESENT | DEV_CONFIG_PENDING;

#endif

	// VCC crap?
        parse = kmalloc(sizeof(cisparse_t), GFP_KERNEL);

	wlandev = create_wlan();
	if (!wlandev || !parse) {
		WLAN_LOG_ERROR("%s: Memory allocation failure.\n", dev_info);
		rval = -EIO;
		goto failed;
	}
	hw = wlandev->priv;

	if ( wlan_setup(wlandev) != 0 ) {
		WLAN_LOG_ERROR("%s: wlan_setup() failed.\n", dev_info);
		rval = -EIO;
		goto failed;
	}

	/* Initialize the hw struct for now */
	hfa384x_create(hw, 0, 0, NULL);
	hw->wlandev = wlandev;

#if LINUX_VERSION_CODE > KERNEL_VERSION(2,6,16)
	hw->pdev = pdev;
	pdev->priv = wlandev;
#else
	hw->link = link;
	link->priv = wlandev;
#endif

        tuple.DesiredTuple = CISTPL_CONFIG;
        tuple.Attributes = 0;
        tuple.TupleData = buf;
        tuple.TupleDataMax = sizeof(buf);
        tuple.TupleOffset = 0;
        CS_CHECK(GetFirstTuple, pcmcia_get_first_tuple(pdev, &tuple));
        CS_CHECK(GetTupleData, pcmcia_get_tuple_data(pdev, &tuple));
        CS_CHECK(ParseTuple, pcmcia_parse_tuple(pdev, &tuple, parse));
#if LINUX_VERSION_CODE > KERNEL_VERSION(2,6,16)
        pdev->conf.ConfigBase = parse->config.base;
        pdev->conf.Present = parse->config.rmask[0];
#else
        link->conf.ConfigBase = parse->config.base;
        link->conf.Present = parse->config.rmask[0];

	link->conf.Vcc = socketconf.Vcc;
#endif
        CS_CHECK(GetConfigurationInfo,
                 pcmcia_get_configuration_info(pdev, &socketconf));