[GitHub/LineageOS/android_kernel_motorola_exynos9610.git] / drivers / net / wireless / hostap / hostap_pci.c

#define PRISM2_PCI

/* Host AP driver's support for Intersil Prism2.5 PCI cards is based on
 * driver patches from Reyk Floeter <reyk@vantronix.net> and
 * Andy Warner <andyw@pobox.com> */

#include <linux/config.h>
#include <linux/version.h>
#include <linux/module.h>
#include <linux/init.h>
#include <linux/if.h>
#include <linux/skbuff.h>
#include <linux/netdevice.h>
#include <linux/workqueue.h>
#include <linux/wireless.h>
#include <net/iw_handler.h>

#include <linux/ioport.h>
#include <linux/pci.h>
#include <asm/io.h>

#include "hostap_wlan.h"


static char *version = PRISM2_VERSION " (Jouni Malinen <jkmaline@cc.hut.fi>)";
static char *dev_info = "hostap_pci";


MODULE_AUTHOR("Jouni Malinen");
MODULE_DESCRIPTION("Support for Intersil Prism2.5-based 802.11 wireless LAN "
		   "PCI cards.");
MODULE_SUPPORTED_DEVICE("Intersil Prism2.5-based WLAN PCI cards");
MODULE_LICENSE("GPL");
MODULE_VERSION(PRISM2_VERSION);


/* FIX: do we need mb/wmb/rmb with memory operations? */


static struct pci_device_id prism2_pci_id_table[] __devinitdata = {
	/* Intersil Prism3 ISL3872 11Mb/s WLAN Controller */
	{ 0x1260, 0x3872, PCI_ANY_ID, PCI_ANY_ID },
	/* Intersil Prism2.5 ISL3874 11Mb/s WLAN Controller */
	{ 0x1260, 0x3873, PCI_ANY_ID, PCI_ANY_ID },
	/* Samsung MagicLAN SWL-2210P */
	{ 0x167d, 0xa000, PCI_ANY_ID, PCI_ANY_ID },
	{ 0 }
};


#ifdef PRISM2_IO_DEBUG

static inline void hfa384x_outb_debug(struct net_device *dev, int a, u8 v)
{
	struct hostap_interface *iface;
	local_info_t *local;
	unsigned long flags;

	iface = netdev_priv(dev);
	local = iface->local;

	spin_lock_irqsave(&local->lock, flags);
	prism2_io_debug_add(dev, PRISM2_IO_DEBUG_CMD_OUTB, a, v);
	writeb(v, local->mem_start + a);
	spin_unlock_irqrestore(&local->lock, flags);
}

static inline u8 hfa384x_inb_debug(struct net_device *dev, int a)
{
	struct hostap_interface *iface;
	local_info_t *local;
	unsigned long flags;
	u8 v;

	iface = netdev_priv(dev);
	local = iface->local;

	spin_lock_irqsave(&local->lock, flags);
	v = readb(local->mem_start + a);
	prism2_io_debug_add(dev, PRISM2_IO_DEBUG_CMD_INB, a, v);
	spin_unlock_irqrestore(&local->lock, flags);
	return v;
}

static inline void hfa384x_outw_debug(struct net_device *dev, int a, u16 v)
{
	struct hostap_interface *iface;
	local_info_t *local;
	unsigned long flags;

	iface = netdev_priv(dev);
	local = iface->local;

	spin_lock_irqsave(&local->lock, flags);
	prism2_io_debug_add(dev, PRISM2_IO_DEBUG_CMD_OUTW, a, v);
	writew(v, local->mem_start + a);
	spin_unlock_irqrestore(&local->lock, flags);
}

static inline u16 hfa384x_inw_debug(struct net_device *dev, int a)
{
	struct hostap_interface *iface;
	local_info_t *local;
	unsigned long flags;
	u16 v;

	iface = netdev_priv(dev);
	local = iface->local;

	spin_lock_irqsave(&local->lock, flags);
	v = readw(local->mem_start + a);
	prism2_io_debug_add(dev, PRISM2_IO_DEBUG_CMD_INW, a, v);
	spin_unlock_irqrestore(&local->lock, flags);
	return v;
}

#define HFA384X_OUTB(v,a) hfa384x_outb_debug(dev, (a), (v))
#define HFA384X_INB(a) hfa384x_inb_debug(dev, (a))
#define HFA384X_OUTW(v,a) hfa384x_outw_debug(dev, (a), (v))
#define HFA384X_INW(a) hfa384x_inw_debug(dev, (a))
#define HFA384X_OUTW_DATA(v,a) hfa384x_outw_debug(dev, (a), cpu_to_le16((v)))
#define HFA384X_INW_DATA(a) (u16) le16_to_cpu(hfa384x_inw_debug(dev, (a)))

#else /* PRISM2_IO_DEBUG */

static inline void hfa384x_outb(struct net_device *dev, int a, u8 v)
{
	struct hostap_interface *iface;
	local_info_t *local;
	iface = netdev_priv(dev);
	local = iface->local;
	writeb(v, local->mem_start + a);
}

static inline u8 hfa384x_inb(struct net_device *dev, int a)
{
	struct hostap_interface *iface;
	local_info_t *local;
	iface = netdev_priv(dev);
	local = iface->local;
	return readb(local->mem_start + a);
}

static inline void hfa384x_outw(struct net_device *dev, int a, u16 v)
{
	struct hostap_interface *iface;
	local_info_t *local;
	iface = netdev_priv(dev);
	local = iface->local;
	writew(v, local->mem_start + a);
}

static inline u16 hfa384x_inw(struct net_device *dev, int a)
{
	struct hostap_interface *iface;
	local_info_t *local;
	iface = netdev_priv(dev);
	local = iface->local;
	return readw(local->mem_start + a);
}

#define HFA384X_OUTB(v,a) hfa384x_outb(dev, (a), (v))
#define HFA384X_INB(a) hfa384x_inb(dev, (a))
#define HFA384X_OUTW(v,a) hfa384x_outw(dev, (a), (v))
#define HFA384X_INW(a) hfa384x_inw(dev, (a))
#define HFA384X_OUTW_DATA(v,a) hfa384x_outw(dev, (a), cpu_to_le16((v)))
#define HFA384X_INW_DATA(a) (u16) le16_to_cpu(hfa384x_inw(dev, (a)))

#endif /* PRISM2_IO_DEBUG */


static int hfa384x_from_bap(struct net_device *dev, u16 bap, void *buf,
			    int len)
{
	u16 d_off;
	u16 *pos;

	d_off = (bap == 1) ? HFA384X_DATA1_OFF : HFA384X_DATA0_OFF;
	pos = (u16 *) buf;

	for ( ; len > 1; len -= 2)
		*pos++ = HFA384X_INW_DATA(d_off);

	if (len & 1)
		*((char *) pos) = HFA384X_INB(d_off);

	return 0;
}


static int hfa384x_to_bap(struct net_device *dev, u16 bap, void *buf, int len)
{
	u16 d_off;
	u16 *pos;

	d_off = (bap == 1) ? HFA384X_DATA1_OFF : HFA384X_DATA0_OFF;
	pos = (u16 *) buf;

	for ( ; len > 1; len -= 2)
		HFA384X_OUTW_DATA(*pos++, d_off);

	if (len & 1)
		HFA384X_OUTB(*((char *) pos), d_off);

	return 0;
}


/* FIX: This might change at some point.. */
#include "hostap_hw.c"

static void prism2_pci_cor_sreset(local_info_t *local)
{
	struct net_device *dev = local->dev;
	u16 reg;

	reg = HFA384X_INB(HFA384X_PCICOR_OFF);
	printk(KERN_DEBUG "%s: Original COR value: 0x%0x\n", dev->name, reg);

	/* linux-wlan-ng uses extremely long hold and settle times for
	 * COR sreset. A comment in the driver code mentions that the long
	 * delays appear to be necessary. However, at least IBM 22P6901 seems
	 * to work fine with shorter delays.
	 *
	 * Longer delays can be configured by uncommenting following line: */
/* #define PRISM2_PCI_USE_LONG_DELAYS */

#ifdef PRISM2_PCI_USE_LONG_DELAYS
	int i;

	HFA384X_OUTW(reg | 0x0080, HFA384X_PCICOR_OFF);
	mdelay(250);

	HFA384X_OUTW(reg & ~0x0080, HFA384X_PCICOR_OFF);
	mdelay(500);

	/* Wait for f/w to complete initialization (CMD:BUSY == 0) */
	i = 2000000 / 10;
	while ((HFA384X_INW(HFA384X_CMD_OFF) & HFA384X_CMD_BUSY) && --i)
		udelay(10);

#else /* PRISM2_PCI_USE_LONG_DELAYS */

	HFA384X_OUTW(reg | 0x0080, HFA384X_PCICOR_OFF);
	mdelay(2);
	HFA384X_OUTW(reg & ~0x0080, HFA384X_PCICOR_OFF);
	mdelay(2);

#endif /* PRISM2_PCI_USE_LONG_DELAYS */

	if (HFA384X_INW(HFA384X_CMD_OFF) & HFA384X_CMD_BUSY) {
		printk(KERN_DEBUG "%s: COR sreset timeout\n", dev->name);
	}
}


static void prism2_pci_genesis_reset(local_info_t *local, int hcr)
{
	struct net_device *dev = local->dev;

	HFA384X_OUTW(0x00C5, HFA384X_PCICOR_OFF);
	mdelay(10);
	HFA384X_OUTW(hcr, HFA384X_PCIHCR_OFF);
	mdelay(10);
	HFA384X_OUTW(0x0045, HFA384X_PCICOR_OFF);
	mdelay(10);
}


static struct prism2_helper_functions prism2_pci_funcs =
{
	.card_present	= NULL,
	.cor_sreset	= prism2_pci_cor_sreset,
	.dev_open	= NULL,
	.dev_close	= NULL,
	.genesis_reset	= prism2_pci_genesis_reset,
	.hw_type	= HOSTAP_HW_PCI,
};


static int prism2_pci_probe(struct pci_dev *pdev,
			    const struct pci_device_id *id)
{
	unsigned long phymem;
	void __iomem *mem = NULL;
	local_info_t *local = NULL;
	struct net_device *dev = NULL;
	static int cards_found /* = 0 */;
	int irq_registered = 0;
	struct hostap_interface *iface;

	if (pci_enable_device(pdev))
		return -EIO;

	phymem = pci_resource_start(pdev, 0);

	if (!request_mem_region(phymem, pci_resource_len(pdev, 0), "Prism2")) {
		printk(KERN_ERR "prism2: Cannot reserve PCI memory region\n");
		goto err_out_disable;
	}

	mem = ioremap(phymem, pci_resource_len(pdev, 0));
	if (mem == NULL) {
		printk(KERN_ERR "prism2: Cannot remap PCI memory region\n") ;
		goto fail;
	}

	dev = prism2_init_local_data(&prism2_pci_funcs, cards_found,
				     &pdev->dev);
	if (dev == NULL)
		goto fail;
	iface = netdev_priv(dev);
	local = iface->local;
	cards_found++;

        dev->irq = pdev->irq;
        local->mem_start = mem;

	prism2_pci_cor_sreset(local);

	pci_set_drvdata(pdev, dev);

	if (request_irq(dev->irq, prism2_interrupt, SA_SHIRQ, dev->name,
			dev)) {
		printk(KERN_WARNING "%s: request_irq failed\n", dev->name);
		goto fail;
	} else
		irq_registered = 1;

	if (!local->pri_only && prism2_hw_config(dev, 1)) {
		printk(KERN_DEBUG "%s: hardware initialization failed\n",
		       dev_info);
		goto fail;
	}

	printk(KERN_INFO "%s: Intersil Prism2.5 PCI: "
	       "mem=0x%lx, irq=%d\n", dev->name, phymem, dev->irq);

	return hostap_hw_ready(dev);

 fail:
	if (irq_registered && dev)
		free_irq(dev->irq, dev);

	if (mem)
		iounmap(mem);

	release_mem_region(phymem, pci_resource_len(pdev, 0));

 err_out_disable:
	pci_disable_device(pdev);
	prism2_free_local_data(dev);

	return -ENODEV;
}


static void prism2_pci_remove(struct pci_dev *pdev)
{
	struct net_device *dev;
	struct hostap_interface *iface;
	void __iomem *mem_start;

	dev = pci_get_drvdata(pdev);
	iface = netdev_priv(dev);

	/* Reset the hardware, and ensure interrupts are disabled. */
	prism2_pci_cor_sreset(iface->local);
	hfa384x_disable_interrupts(dev);

	if (dev->irq)
		free_irq(dev->irq, dev);

	mem_start = iface->local->mem_start;
	prism2_free_local_data(dev);

	iounmap(mem_start);

	release_mem_region(pci_resource_start(pdev, 0),
			   pci_resource_len(pdev, 0));
	pci_disable_device(pdev);
}


#ifdef CONFIG_PM
static int prism2_pci_suspend(struct pci_dev *pdev, u32 state)
{
	struct net_device *dev = pci_get_drvdata(pdev);

	if (netif_running(dev)) {
		netif_stop_queue(dev);
		netif_device_detach(dev);
	}
	prism2_suspend(dev);
	pci_save_state(pdev);
	pci_disable_device(pdev);
	pci_set_power_state(pdev, 3);

	return 0;
}

static int prism2_pci_resume(struct pci_dev *pdev)
{
	struct net_device *dev = pci_get_drvdata(pdev);

	pci_enable_device(pdev);
	pci_restore_state(pdev);
	prism2_hw_config(dev, 0);
	if (netif_running(dev)) {
		netif_device_attach(dev);
		netif_start_queue(dev);
	}

	return 0;
}
#endif /* CONFIG_PM */


MODULE_DEVICE_TABLE(pci, prism2_pci_id_table);

static struct pci_driver prism2_pci_drv_id = {
	.name		= "prism2_pci",
	.id_table	= prism2_pci_id_table,
	.probe		= prism2_pci_probe,
	.remove		= prism2_pci_remove,
#ifdef CONFIG_PM
	.suspend	= prism2_pci_suspend,
	.resume		= prism2_pci_resume,
#endif /* CONFIG_PM */
	/* Linux 2.4.6 added save_state and enable_wake that are not used here
	 */
};


static int __init init_prism2_pci(void)
{
	printk(KERN_INFO "%s: %s\n", dev_info, version);

	return pci_register_driver(&prism2_pci_drv_id);
}


static void __exit exit_prism2_pci(void)
{
	pci_unregister_driver(&prism2_pci_drv_id);
	printk(KERN_INFO "%s: Driver unloaded\n", dev_info);
}


module_init(init_prism2_pci);
module_exit(exit_prism2_pci);
Commit	Line	Data
ff1d2767 JM	1	#define PRISM2_PCI
	2
	3	/* Host AP driver's support for Intersil Prism2.5 PCI cards is based on
	4	* driver patches from Reyk Floeter <reyk@vantronix.net> and
	5	* Andy Warner <andyw@pobox.com> */
	6
	7	#include <linux/config.h>
	8	#include <linux/version.h>
	9	#include <linux/module.h>
	10	#include <linux/init.h>
	11	#include <linux/if.h>
	12	#include <linux/skbuff.h>
	13	#include <linux/netdevice.h>
	14	#include <linux/workqueue.h>
	15	#include <linux/wireless.h>
	16	#include <net/iw_handler.h>
	17
	18	#include <linux/ioport.h>
	19	#include <linux/pci.h>
	20	#include <asm/io.h>
	21
	22	#include "hostap_wlan.h"
	23
	24
	25	static char *version = PRISM2_VERSION " (Jouni Malinen <jkmaline@cc.hut.fi>)";
	26	static char *dev_info = "hostap_pci";
	27
	28
	29	MODULE_AUTHOR("Jouni Malinen");
	30	MODULE_DESCRIPTION("Support for Intersil Prism2.5-based 802.11 wireless LAN "
	31	"PCI cards.");
	32	MODULE_SUPPORTED_DEVICE("Intersil Prism2.5-based WLAN PCI cards");
	33	MODULE_LICENSE("GPL");
f06ac319	34	MODULE_VERSION(PRISM2_VERSION);
ff1d2767 JM	35
	36
	37	/* FIX: do we need mb/wmb/rmb with memory operations? */
	38
	39
	40	static struct pci_device_id prism2_pci_id_table[] __devinitdata = {
	41	/* Intersil Prism3 ISL3872 11Mb/s WLAN Controller */
	42	{ 0x1260, 0x3872, PCI_ANY_ID, PCI_ANY_ID },
	43	/* Intersil Prism2.5 ISL3874 11Mb/s WLAN Controller */
	44	{ 0x1260, 0x3873, PCI_ANY_ID, PCI_ANY_ID },
	45	/* Samsung MagicLAN SWL-2210P */
	46	{ 0x167d, 0xa000, PCI_ANY_ID, PCI_ANY_ID },
	47	{ 0 }
	48	};
	49
	50
	51	#ifdef PRISM2_IO_DEBUG
	52
	53	static inline void hfa384x_outb_debug(struct net_device *dev, int a, u8 v)
	54	{
	55	struct hostap_interface *iface;
	56	local_info_t *local;
	57	unsigned long flags;
	58
	59	iface = netdev_priv(dev);
	60	local = iface->local;
	61
	62	spin_lock_irqsave(&local->lock, flags);
	63	prism2_io_debug_add(dev, PRISM2_IO_DEBUG_CMD_OUTB, a, v);
	64	writeb(v, local->mem_start + a);
	65	spin_unlock_irqrestore(&local->lock, flags);
	66	}
	67
	68	static inline u8 hfa384x_inb_debug(struct net_device *dev, int a)
	69	{
	70	struct hostap_interface *iface;
	71	local_info_t *local;
	72	unsigned long flags;
	73	u8 v;
	74
	75	iface = netdev_priv(dev);
	76	local = iface->local;
	77
	78	spin_lock_irqsave(&local->lock, flags);
	79	v = readb(local->mem_start + a);
	80	prism2_io_debug_add(dev, PRISM2_IO_DEBUG_CMD_INB, a, v);
	81	spin_unlock_irqrestore(&local->lock, flags);
	82	return v;
	83	}
	84
	85	static inline void hfa384x_outw_debug(struct net_device *dev, int a, u16 v)
	86	{
	87	struct hostap_interface *iface;
	88	local_info_t *local;
	89	unsigned long flags;
	90
	91	iface = netdev_priv(dev);
	92	local = iface->local;
	93
	94	spin_lock_irqsave(&local->lock, flags);
	95	prism2_io_debug_add(dev, PRISM2_IO_DEBUG_CMD_OUTW, a, v);
	96	writew(v, local->mem_start + a);
	97	spin_unlock_irqrestore(&local->lock, flags);
	98	}
99
100	static inline u16 hfa384x_inw_debug(struct net_device *dev, int a)
101	{
102	struct hostap_interface *iface;
103	local_info_t *local;
104	unsigned long flags;
105	u16 v;
106
107	iface = netdev_priv(dev);
108	local = iface->local;
109
110	spin_lock_irqsave(&local->lock, flags);
111	v = readw(local->mem_start + a);
112	prism2_io_debug_add(dev, PRISM2_IO_DEBUG_CMD_INW, a, v);
113	spin_unlock_irqrestore(&local->lock, flags);
114	return v;
115	}
116
117	#define HFA384X_OUTB(v,a) hfa384x_outb_debug(dev, (a), (v))
118	#define HFA384X_INB(a) hfa384x_inb_debug(dev, (a))
119	#define HFA384X_OUTW(v,a) hfa384x_outw_debug(dev, (a), (v))
120	#define HFA384X_INW(a) hfa384x_inw_debug(dev, (a))
121	#define HFA384X_OUTW_DATA(v,a) hfa384x_outw_debug(dev, (a), cpu_to_le16((v)))
122	#define HFA384X_INW_DATA(a) (u16) le16_to_cpu(hfa384x_inw_debug(dev, (a)))
123
124	#else /* PRISM2_IO_DEBUG */
125
126	static inline void hfa384x_outb(struct net_device *dev, int a, u8 v)
127	{
128	struct hostap_interface *iface;
129	local_info_t *local;
130	iface = netdev_priv(dev);
131	local = iface->local;
132	writeb(v, local->mem_start + a);
133	}
134
135	static inline u8 hfa384x_inb(struct net_device *dev, int a)
136	{
137	struct hostap_interface *iface;
138	local_info_t *local;
139	iface = netdev_priv(dev);
140	local = iface->local;
141	return readb(local->mem_start + a);
142	}
143
144	static inline void hfa384x_outw(struct net_device *dev, int a, u16 v)
145	{
146	struct hostap_interface *iface;
147	local_info_t *local;
148	iface = netdev_priv(dev);
149	local = iface->local;
150	writew(v, local->mem_start + a);
151	}
152
153	static inline u16 hfa384x_inw(struct net_device *dev, int a)
154	{
155	struct hostap_interface *iface;
156	local_info_t *local;
157	iface = netdev_priv(dev);
158	local = iface->local;
159	return readw(local->mem_start + a);
160	}
161
162	#define HFA384X_OUTB(v,a) hfa384x_outb(dev, (a), (v))
163	#define HFA384X_INB(a) hfa384x_inb(dev, (a))
164	#define HFA384X_OUTW(v,a) hfa384x_outw(dev, (a), (v))
165	#define HFA384X_INW(a) hfa384x_inw(dev, (a))
166	#define HFA384X_OUTW_DATA(v,a) hfa384x_outw(dev, (a), cpu_to_le16((v)))
167	#define HFA384X_INW_DATA(a) (u16) le16_to_cpu(hfa384x_inw(dev, (a)))
168
169	#endif /* PRISM2_IO_DEBUG */
170
171
172	static int hfa384x_from_bap(struct net_device dev, u16 bap, void buf,
173	int len)
174	{
175	u16 d_off;
176	u16 *pos;
177
178	d_off = (bap == 1) ? HFA384X_DATA1_OFF : HFA384X_DATA0_OFF;
179	pos = (u16 *) buf;
180
181	for ( ; len > 1; len -= 2)
182	*pos++ = HFA384X_INW_DATA(d_off);
183
184	if (len & 1)
185	((char ) pos) = HFA384X_INB(d_off);
186
187	return 0;
188	}
189
190
191	static int hfa384x_to_bap(struct net_device dev, u16 bap, void buf, int len)
192	{
193	u16 d_off;
194	u16 *pos;
195
196	d_off = (bap == 1) ? HFA384X_DATA1_OFF : HFA384X_DATA0_OFF;
197	pos = (u16 *) buf;
198
199	for ( ; len > 1; len -= 2)
200	HFA384X_OUTW_DATA(*pos++, d_off);
201
202	if (len & 1)
203	HFA384X_OUTB(((char ) pos), d_off);
204
205	return 0;
206	}
207
208
209	/* FIX: This might change at some point.. */
210	#include "hostap_hw.c"
211
212	static void prism2_pci_cor_sreset(local_info_t *local)
213	{
214	struct net_device *dev = local->dev;
215	u16 reg;
216
217	reg = HFA384X_INB(HFA384X_PCICOR_OFF);
218	printk(KERN_DEBUG "%s: Original COR value: 0x%0x\n", dev->name, reg);
219
220	/* linux-wlan-ng uses extremely long hold and settle times for
221	* COR sreset. A comment in the driver code mentions that the long
222	* delays appear to be necessary. However, at least IBM 22P6901 seems
223	* to work fine with shorter delays.
224	*
225	* Longer delays can be configured by uncommenting following line: */
226	/* #define PRISM2_PCI_USE_LONG_DELAYS */
227
228	#ifdef PRISM2_PCI_USE_LONG_DELAYS
229	int i;
230
231	HFA384X_OUTW(reg \| 0x0080, HFA384X_PCICOR_OFF);
232	mdelay(250);
233
234	HFA384X_OUTW(reg & ~0x0080, HFA384X_PCICOR_OFF);
235	mdelay(500);
236
237	/* Wait for f/w to complete initialization (CMD:BUSY == 0) */
238	i = 2000000 / 10;
239	while ((HFA384X_INW(HFA384X_CMD_OFF) & HFA384X_CMD_BUSY) && --i)
240	udelay(10);
241
242	#else /* PRISM2_PCI_USE_LONG_DELAYS */
243
244	HFA384X_OUTW(reg \| 0x0080, HFA384X_PCICOR_OFF);
245	mdelay(2);
246	HFA384X_OUTW(reg & ~0x0080, HFA384X_PCICOR_OFF);
247	mdelay(2);
248
249	#endif /* PRISM2_PCI_USE_LONG_DELAYS */
250
251	if (HFA384X_INW(HFA384X_CMD_OFF) & HFA384X_CMD_BUSY) {
252	printk(KERN_DEBUG "%s: COR sreset timeout\n", dev->name);
253	}
254	}
255
256
257	static void prism2_pci_genesis_reset(local_info_t *local, int hcr)
258	{
259	struct net_device *dev = local->dev;
260
261	HFA384X_OUTW(0x00C5, HFA384X_PCICOR_OFF);
262	mdelay(10);
263	HFA384X_OUTW(hcr, HFA384X_PCIHCR_OFF);
264	mdelay(10);
265	HFA384X_OUTW(0x0045, HFA384X_PCICOR_OFF);
266	mdelay(10);
267	}
268
269
270	static struct prism2_helper_functions prism2_pci_funcs =
271	{
272	.card_present = NULL,
273	.cor_sreset = prism2_pci_cor_sreset,
274	.dev_open = NULL,
275	.dev_close = NULL,
276	.genesis_reset = prism2_pci_genesis_reset,
277	.hw_type = HOSTAP_HW_PCI,
278	};
279
280
281	static int prism2_pci_probe(struct pci_dev *pdev,
282	const struct pci_device_id *id)
283	{
284	unsigned long phymem;
285	void __iomem *mem = NULL;
286	local_info_t *local = NULL;
287	struct net_device *dev = NULL;
288	static int cards_found /* = 0 */;
289	int irq_registered = 0;
290	struct hostap_interface *iface;
291
292	if (pci_enable_device(pdev))
293	return -EIO;
294
295	phymem = pci_resource_start(pdev, 0);
296
297	if (!request_mem_region(phymem, pci_resource_len(pdev, 0), "Prism2")) {
298	printk(KERN_ERR "prism2: Cannot reserve PCI memory region\n");
299	goto err_out_disable;
300	}
301
302	mem = ioremap(phymem, pci_resource_len(pdev, 0));
303	if (mem == NULL) {
304	printk(KERN_ERR "prism2: Cannot remap PCI memory region\n") ;
305	goto fail;
306	}
307
0cd545d6 DH	308	dev = prism2_init_local_data(&prism2_pci_funcs, cards_found,
0cd545d6 DH	309	&pdev->dev);
ff1d2767 JM	310	if (dev == NULL)
	311	goto fail;
	312	iface = netdev_priv(dev);
	313	local = iface->local;
	314	cards_found++;
	315
	316	dev->irq = pdev->irq;
	317	local->mem_start = mem;
	318
	319	prism2_pci_cor_sreset(local);
	320
	321	pci_set_drvdata(pdev, dev);
	322
	323	if (request_irq(dev->irq, prism2_interrupt, SA_SHIRQ, dev->name,
	324	dev)) {
	325	printk(KERN_WARNING "%s: request_irq failed\n", dev->name);
	326	goto fail;
	327	} else
	328	irq_registered = 1;
	329
	330	if (!local->pri_only && prism2_hw_config(dev, 1)) {
	331	printk(KERN_DEBUG "%s: hardware initialization failed\n",
	332	dev_info);
	333	goto fail;
	334	}
	335
	336	printk(KERN_INFO "%s: Intersil Prism2.5 PCI: "
	337	"mem=0x%lx, irq=%d\n", dev->name, phymem, dev->irq);
	338
	339	return hostap_hw_ready(dev);
	340
	341	fail:
	342	if (irq_registered && dev)
	343	free_irq(dev->irq, dev);
	344
	345	if (mem)
	346	iounmap(mem);
	347
	348	release_mem_region(phymem, pci_resource_len(pdev, 0));
	349
	350	err_out_disable:
	351	pci_disable_device(pdev);
	352	prism2_free_local_data(dev);
	353
	354	return -ENODEV;
	355	}
	356
	357
	358	static void prism2_pci_remove(struct pci_dev *pdev)
	359	{
	360	struct net_device *dev;
	361	struct hostap_interface *iface;
	362	void __iomem *mem_start;
	363
	364	dev = pci_get_drvdata(pdev);
	365	iface = netdev_priv(dev);
	366
	367	/* Reset the hardware, and ensure interrupts are disabled. */
	368	prism2_pci_cor_sreset(iface->local);
	369	hfa384x_disable_interrupts(dev);
	370
	371	if (dev->irq)
	372	free_irq(dev->irq, dev);
	373
374	mem_start = iface->local->mem_start;
375	prism2_free_local_data(dev);
376
377	iounmap(mem_start);
378
379	release_mem_region(pci_resource_start(pdev, 0),
380	pci_resource_len(pdev, 0));
381	pci_disable_device(pdev);
382	}
383
384
385	#ifdef CONFIG_PM
386	static int prism2_pci_suspend(struct pci_dev *pdev, u32 state)
387	{
388	struct net_device *dev = pci_get_drvdata(pdev);
389
390	if (netif_running(dev)) {
391	netif_stop_queue(dev);
392	netif_device_detach(dev);
393	}
394	prism2_suspend(dev);
395	pci_save_state(pdev);
396	pci_disable_device(pdev);
397	pci_set_power_state(pdev, 3);
398
399	return 0;
400	}
401
402	static int prism2_pci_resume(struct pci_dev *pdev)
403	{
404	struct net_device *dev = pci_get_drvdata(pdev);
405
406	pci_enable_device(pdev);
407	pci_restore_state(pdev);
408	prism2_hw_config(dev, 0);
409	if (netif_running(dev)) {
410	netif_device_attach(dev);
411	netif_start_queue(dev);
412	}
413
414	return 0;
415	}
416	#endif /* CONFIG_PM */
417
418
419	MODULE_DEVICE_TABLE(pci, prism2_pci_id_table);
420
421	static struct pci_driver prism2_pci_drv_id = {
422	.name = "prism2_pci",
423	.id_table = prism2_pci_id_table,
424	.probe = prism2_pci_probe,
425	.remove = prism2_pci_remove,
426	#ifdef CONFIG_PM
427	.suspend = prism2_pci_suspend,
428	.resume = prism2_pci_resume,
429	#endif /* CONFIG_PM */
430	/* Linux 2.4.6 added save_state and enable_wake that are not used here
431	*/
432	};
433
434
435	static int __init init_prism2_pci(void)
436	{
437	printk(KERN_INFO "%s: %s\n", dev_info, version);
438
439	return pci_register_driver(&prism2_pci_drv_id);
440	}
441
442
443	static void __exit exit_prism2_pci(void)
444	{
445	pci_unregister_driver(&prism2_pci_drv_id);
446	printk(KERN_INFO "%s: Driver unloaded\n", dev_info);
447	}
448
449
450	module_init(init_prism2_pci);
451	module_exit(exit_prism2_pci);