[deliverable/linux.git] / drivers / misc / tifm_7xx1.c

/*
 *  tifm_7xx1.c - TI FlashMedia driver
 *
 *  Copyright (C) 2006 Alex Dubov <oakad@yahoo.com>
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License version 2 as
 * published by the Free Software Foundation.
 *
 */

#include <linux/tifm.h>
#include <linux/dma-mapping.h>

#define DRIVER_NAME "tifm_7xx1"
#define DRIVER_VERSION "0.7"

static void tifm_7xx1_eject(struct tifm_adapter *fm, struct tifm_dev *sock)
{
	unsigned long flags;

	spin_lock_irqsave(&fm->lock, flags);
	if (!fm->inhibit_new_cards) {
		fm->remove_mask |= 1 << sock->socket_id;
		queue_work(fm->wq, &fm->media_remover);
	}
	spin_unlock_irqrestore(&fm->lock, flags);
}

static void tifm_7xx1_remove_media(struct work_struct *work)
{
	struct tifm_adapter *fm =
		container_of(work, struct tifm_adapter, media_remover);
	unsigned long flags;
	int cnt;
	struct tifm_dev *sock;

	if (!class_device_get(&fm->cdev))
		return;
	spin_lock_irqsave(&fm->lock, flags);
	for (cnt = 0; cnt < fm->max_sockets; cnt++) {
		if (fm->sockets[cnt] && (fm->remove_mask & (1 << cnt))) {
			printk(KERN_INFO DRIVER_NAME
			       ": demand removing card from socket %d\n", cnt);
			sock = fm->sockets[cnt];
			fm->sockets[cnt] = NULL;
			fm->remove_mask &= ~(1 << cnt);

			writel(0x0e00, sock->addr + SOCK_CONTROL);

			writel((TIFM_IRQ_FIFOMASK | TIFM_IRQ_CARDMASK) << cnt,
				fm->addr + FM_CLEAR_INTERRUPT_ENABLE);
			writel((TIFM_IRQ_FIFOMASK | TIFM_IRQ_CARDMASK) << cnt,
				fm->addr + FM_SET_INTERRUPT_ENABLE);

			spin_unlock_irqrestore(&fm->lock, flags);
			device_unregister(&sock->dev);
			spin_lock_irqsave(&fm->lock, flags);
		}
	}
	spin_unlock_irqrestore(&fm->lock, flags);
	class_device_put(&fm->cdev);
}

static irqreturn_t tifm_7xx1_isr(int irq, void *dev_id)
{
	struct tifm_adapter *fm = dev_id;
	struct tifm_dev *sock;
	unsigned int irq_status;
	unsigned int sock_irq_status, cnt;

	spin_lock(&fm->lock);
	irq_status = readl(fm->addr + FM_INTERRUPT_STATUS);
	if (irq_status == 0 || irq_status == (~0)) {
		spin_unlock(&fm->lock);
		return IRQ_NONE;
	}

	if (irq_status & TIFM_IRQ_ENABLE) {
		writel(TIFM_IRQ_ENABLE, fm->addr + FM_CLEAR_INTERRUPT_ENABLE);

		for (cnt = 0; cnt <  fm->max_sockets; cnt++) {
			sock = fm->sockets[cnt];
			sock_irq_status = (irq_status >> cnt) &
					(TIFM_IRQ_FIFOMASK | TIFM_IRQ_CARDMASK);

			if (sock) {
				if (sock_irq_status)
					sock->signal_irq(sock, sock_irq_status);

				if (irq_status & (1 << cnt))
					fm->remove_mask |= 1 << cnt;
			} else {
				if (irq_status & (1 << cnt))
					fm->insert_mask |= 1 << cnt;
			}
		}
	}
	writel(irq_status, fm->addr + FM_INTERRUPT_STATUS);

	if (!fm->inhibit_new_cards) {
		if (!fm->remove_mask && !fm->insert_mask) {
			writel(TIFM_IRQ_ENABLE,
				fm->addr + FM_SET_INTERRUPT_ENABLE);
		} else {
			queue_work(fm->wq, &fm->media_remover);
			queue_work(fm->wq, &fm->media_inserter);
		}
	}

	spin_unlock(&fm->lock);
	return IRQ_HANDLED;
}

static tifm_media_id tifm_7xx1_toggle_sock_power(char __iomem *sock_addr, int is_x2)
{
	unsigned int s_state;
	int cnt;

	writel(0x0e00, sock_addr + SOCK_CONTROL);

	for (cnt = 0; cnt < 100; cnt++) {
		if (!(TIFM_SOCK_STATE_POWERED &
				readl(sock_addr + SOCK_PRESENT_STATE)))
			break;
		msleep(10);
	}

	s_state = readl(sock_addr + SOCK_PRESENT_STATE);
	if (!(TIFM_SOCK_STATE_OCCUPIED & s_state))
		return FM_NULL;

	if (is_x2) {
		writel((s_state & 7) | 0x0c00, sock_addr + SOCK_CONTROL);
	} else {
		// SmartMedia cards need extra 40 msec
		if (((readl(sock_addr + SOCK_PRESENT_STATE) >> 4) & 7) == 1)
			msleep(40);
		writel(readl(sock_addr + SOCK_CONTROL) | TIFM_CTRL_LED,
		       sock_addr + SOCK_CONTROL);
		msleep(10);
		writel((s_state & 0x7) | 0x0c00 | TIFM_CTRL_LED,
			sock_addr + SOCK_CONTROL);
	}

	for (cnt = 0; cnt < 100; cnt++) {
		if ((TIFM_SOCK_STATE_POWERED &
				readl(sock_addr + SOCK_PRESENT_STATE)))
			break;
		msleep(10);
	}

	if (!is_x2)
		writel(readl(sock_addr + SOCK_CONTROL) & (~TIFM_CTRL_LED),
		       sock_addr + SOCK_CONTROL);

	return (readl(sock_addr + SOCK_PRESENT_STATE) >> 4) & 7;
}

inline static char __iomem *
tifm_7xx1_sock_addr(char __iomem *base_addr, unsigned int sock_num)
{
	return base_addr + ((sock_num + 1) << 10);
}

static void tifm_7xx1_insert_media(struct work_struct *work)
{
	struct tifm_adapter *fm =
		container_of(work, struct tifm_adapter, media_inserter);
	unsigned long flags;
	tifm_media_id media_id;
	char *card_name = "xx";
	int cnt, ok_to_register;
	unsigned int insert_mask;
	struct tifm_dev *new_sock = NULL;

	if (!class_device_get(&fm->cdev))
		return;
	spin_lock_irqsave(&fm->lock, flags);
	insert_mask = fm->insert_mask;
	fm->insert_mask = 0;
	if (fm->inhibit_new_cards) {
		spin_unlock_irqrestore(&fm->lock, flags);
		class_device_put(&fm->cdev);
		return;
	}
	spin_unlock_irqrestore(&fm->lock, flags);

	for (cnt = 0; cnt < fm->max_sockets; cnt++) {
		if (!(insert_mask & (1 << cnt)))
			continue;

		media_id = tifm_7xx1_toggle_sock_power(tifm_7xx1_sock_addr(fm->addr, cnt),
						       fm->max_sockets == 2);
		if (media_id) {
			ok_to_register = 0;
			new_sock = tifm_alloc_device(fm);
			if (new_sock) {
				new_sock->addr = tifm_7xx1_sock_addr(fm->addr,
									cnt);
				new_sock->media_id = media_id;
				new_sock->socket_id = cnt;
				switch (media_id) {
				case 1:
					card_name = "xd";
					break;
				case 2:
					card_name = "ms";
					break;
				case 3:
					card_name = "sd";
					break;
				default:
					break;
				}
				snprintf(new_sock->dev.bus_id, BUS_ID_SIZE,
					"tifm_%s%u:%u", card_name, fm->id, cnt);
				printk(KERN_INFO DRIVER_NAME
					": %s card detected in socket %d\n",
					card_name, cnt);
				spin_lock_irqsave(&fm->lock, flags);
				if (!fm->sockets[cnt]) {
					fm->sockets[cnt] = new_sock;
					ok_to_register = 1;
				}
				spin_unlock_irqrestore(&fm->lock, flags);
				if (!ok_to_register ||
					    device_register(&new_sock->dev)) {
					spin_lock_irqsave(&fm->lock, flags);
					fm->sockets[cnt] = NULL;
					spin_unlock_irqrestore(&fm->lock,
								flags);
					tifm_free_device(&new_sock->dev);
				}
			}
		}
		writel((TIFM_IRQ_FIFOMASK | TIFM_IRQ_CARDMASK) << cnt,
		       fm->addr + FM_CLEAR_INTERRUPT_ENABLE);
		writel((TIFM_IRQ_FIFOMASK | TIFM_IRQ_CARDMASK) << cnt,
		       fm->addr + FM_SET_INTERRUPT_ENABLE);
	}

	writel(TIFM_IRQ_ENABLE, fm->addr + FM_SET_INTERRUPT_ENABLE);
	class_device_put(&fm->cdev);
}

static int tifm_7xx1_suspend(struct pci_dev *dev, pm_message_t state)
{
	struct tifm_adapter *fm = pci_get_drvdata(dev);
	unsigned long flags;

	spin_lock_irqsave(&fm->lock, flags);
	fm->inhibit_new_cards = 1;
	fm->remove_mask = 0xf;
	fm->insert_mask = 0;
	writel(TIFM_IRQ_ENABLE, fm->addr + FM_CLEAR_INTERRUPT_ENABLE);
	spin_unlock_irqrestore(&fm->lock, flags);
	flush_workqueue(fm->wq);

	tifm_7xx1_remove_media(&fm->media_remover);

	pci_set_power_state(dev, PCI_D3hot);
        pci_disable_device(dev);
        pci_save_state(dev);
	return 0;
}

static int tifm_7xx1_resume(struct pci_dev *dev)
{
	struct tifm_adapter *fm = pci_get_drvdata(dev);
	unsigned long flags;

	pci_restore_state(dev);
        pci_enable_device(dev);
        pci_set_power_state(dev, PCI_D0);
        pci_set_master(dev);

	spin_lock_irqsave(&fm->lock, flags);
	fm->inhibit_new_cards = 0;
	writel(TIFM_IRQ_SETALL, fm->addr + FM_INTERRUPT_STATUS);
	writel(TIFM_IRQ_SETALL, fm->addr + FM_CLEAR_INTERRUPT_ENABLE);
	writel(TIFM_IRQ_ENABLE | TIFM_IRQ_SETALLSOCK,
		fm->addr + FM_SET_INTERRUPT_ENABLE);
	fm->insert_mask = 0xf;
	spin_unlock_irqrestore(&fm->lock, flags);
	return 0;
}

static int tifm_7xx1_probe(struct pci_dev *dev,
			const struct pci_device_id *dev_id)
{
	struct tifm_adapter *fm;
	int pci_dev_busy = 0;
	int rc;

	rc = pci_set_dma_mask(dev, DMA_32BIT_MASK);
	if (rc)
		return rc;

	rc = pci_enable_device(dev);
	if (rc)
		return rc;

	pci_set_master(dev);

	rc = pci_request_regions(dev, DRIVER_NAME);
	if (rc) {
		pci_dev_busy = 1;
		goto err_out;
	}

	pci_intx(dev, 1);

	fm = tifm_alloc_adapter();
	if (!fm) {
		rc = -ENOMEM;
		goto err_out_int;
	}

	fm->dev = &dev->dev;
	fm->max_sockets = (dev->device == 0x803B) ? 2 : 4;
	fm->sockets = kzalloc(sizeof(struct tifm_dev*) * fm->max_sockets,
				GFP_KERNEL);
	if (!fm->sockets)
		goto err_out_free;

	INIT_WORK(&fm->media_inserter, tifm_7xx1_insert_media);
	INIT_WORK(&fm->media_remover, tifm_7xx1_remove_media);
	fm->eject = tifm_7xx1_eject;
	pci_set_drvdata(dev, fm);

	fm->addr = ioremap(pci_resource_start(dev, 0),
				pci_resource_len(dev, 0));
	if (!fm->addr)
		goto err_out_free;

	rc = request_irq(dev->irq, tifm_7xx1_isr, SA_SHIRQ, DRIVER_NAME, fm);
	if (rc)
		goto err_out_unmap;

	rc = tifm_add_adapter(fm);
	if (rc)
		goto err_out_irq;

	writel(TIFM_IRQ_SETALL, fm->addr + FM_CLEAR_INTERRUPT_ENABLE);
	writel(TIFM_IRQ_ENABLE | TIFM_IRQ_SETALLSOCK,
		fm->addr + FM_SET_INTERRUPT_ENABLE);

	fm->insert_mask = 0xf;

	return 0;

err_out_irq:
	free_irq(dev->irq, fm);
err_out_unmap:
	iounmap(fm->addr);
err_out_free:
	pci_set_drvdata(dev, NULL);
	tifm_free_adapter(fm);
err_out_int:
	pci_intx(dev, 0);
	pci_release_regions(dev);
err_out:
	if (!pci_dev_busy)
		pci_disable_device(dev);
	return rc;
}

static void tifm_7xx1_remove(struct pci_dev *dev)
{
	struct tifm_adapter *fm = pci_get_drvdata(dev);
	unsigned long flags;

	spin_lock_irqsave(&fm->lock, flags);
	fm->inhibit_new_cards = 1;
	fm->remove_mask = 0xf;
	fm->insert_mask = 0;
	writel(TIFM_IRQ_ENABLE, fm->addr + FM_CLEAR_INTERRUPT_ENABLE);
	spin_unlock_irqrestore(&fm->lock, flags);

	flush_workqueue(fm->wq);

	tifm_7xx1_remove_media(&fm->media_remover);

	writel(TIFM_IRQ_SETALL, fm->addr + FM_CLEAR_INTERRUPT_ENABLE);
	free_irq(dev->irq, fm);

	tifm_remove_adapter(fm);

	pci_set_drvdata(dev, NULL);

	iounmap(fm->addr);
	pci_intx(dev, 0);
	pci_release_regions(dev);

	pci_disable_device(dev);
	tifm_free_adapter(fm);
}

static struct pci_device_id tifm_7xx1_pci_tbl [] = {
	{ PCI_VENDOR_ID_TI, 0x8033, PCI_ANY_ID, PCI_ANY_ID, 0, 0,
	  0 }, /* xx21 - the one I have */
        { PCI_VENDOR_ID_TI, 0x803B, PCI_ANY_ID, PCI_ANY_ID, 0, 0,
	  0 }, /* xx12 - should be also supported */
	{ }
};

static struct pci_driver tifm_7xx1_driver = {
	.name = DRIVER_NAME,
	.id_table = tifm_7xx1_pci_tbl,
	.probe = tifm_7xx1_probe,
	.remove = tifm_7xx1_remove,
	.suspend = tifm_7xx1_suspend,
	.resume = tifm_7xx1_resume,
};

static int __init tifm_7xx1_init(void)
{
	return pci_register_driver(&tifm_7xx1_driver);
}

static void __exit tifm_7xx1_exit(void)
{
	pci_unregister_driver(&tifm_7xx1_driver);
}

MODULE_AUTHOR("Alex Dubov");
MODULE_DESCRIPTION("TI FlashMedia host driver");
MODULE_LICENSE("GPL");
MODULE_DEVICE_TABLE(pci, tifm_7xx1_pci_tbl);
MODULE_VERSION(DRIVER_VERSION);

module_init(tifm_7xx1_init);
module_exit(tifm_7xx1_exit);
Commit	Line	Data
4020f2d7 AD	1	/*
	2	* tifm_7xx1.c - TI FlashMedia driver
	3	*
	4	* Copyright (C) 2006 Alex Dubov <oakad@yahoo.com>
	5	*
	6	* This program is free software; you can redistribute it and/or modify
	7	* it under the terms of the GNU General Public License version 2 as
	8	* published by the Free Software Foundation.
	9	*
	10	*/
	11
	12	#include <linux/tifm.h>
	13	#include <linux/dma-mapping.h>
	14
	15	#define DRIVER_NAME "tifm_7xx1"
50743f4c	16	#define DRIVER_VERSION "0.7"
4020f2d7 AD	17
	18	static void tifm_7xx1_eject(struct tifm_adapter fm, struct tifm_dev sock)
	19	{
4020f2d7 AD	20	unsigned long flags;
	21
	22	spin_lock_irqsave(&fm->lock, flags);
	23	if (!fm->inhibit_new_cards) {
1499ead3 AD	24	fm->remove_mask \|= 1 << sock->socket_id;
1499ead3 AD	25	queue_work(fm->wq, &fm->media_remover);
4020f2d7 AD	26	}
	27	spin_unlock_irqrestore(&fm->lock, flags);
	28	}
	29
c4028958	30	static void tifm_7xx1_remove_media(struct work_struct *work)
4020f2d7	31	{
c4028958 DH	32	struct tifm_adapter *fm =
c4028958 DH	33	container_of(work, struct tifm_adapter, media_remover);
4020f2d7 AD	34	unsigned long flags;
	35	int cnt;
	36	struct tifm_dev *sock;
	37
	38	if (!class_device_get(&fm->cdev))
	39	return;
	40	spin_lock_irqsave(&fm->lock, flags);
	41	for (cnt = 0; cnt < fm->max_sockets; cnt++) {
	42	if (fm->sockets[cnt] && (fm->remove_mask & (1 << cnt))) {
	43	printk(KERN_INFO DRIVER_NAME
	44	": demand removing card from socket %d\n", cnt);
	45	sock = fm->sockets[cnt];
e069d79d	46	fm->sockets[cnt] = NULL;
4020f2d7 AD	47	fm->remove_mask &= ~(1 << cnt);
	48
	49	writel(0x0e00, sock->addr + SOCK_CONTROL);
	50
	51	writel((TIFM_IRQ_FIFOMASK \| TIFM_IRQ_CARDMASK) << cnt,
	52	fm->addr + FM_CLEAR_INTERRUPT_ENABLE);
	53	writel((TIFM_IRQ_FIFOMASK \| TIFM_IRQ_CARDMASK) << cnt,
	54	fm->addr + FM_SET_INTERRUPT_ENABLE);
	55
	56	spin_unlock_irqrestore(&fm->lock, flags);
	57	device_unregister(&sock->dev);
	58	spin_lock_irqsave(&fm->lock, flags);
	59	}
	60	}
	61	spin_unlock_irqrestore(&fm->lock, flags);
	62	class_device_put(&fm->cdev);
	63	}
	64
7d12e780	65	static irqreturn_t tifm_7xx1_isr(int irq, void *dev_id)
4020f2d7 AD	66	{
4020f2d7 AD	67	struct tifm_adapter *fm = dev_id;
217334d1	68	struct tifm_dev *sock;
4020f2d7 AD	69	unsigned int irq_status;
	70	unsigned int sock_irq_status, cnt;
	71
	72	spin_lock(&fm->lock);
	73	irq_status = readl(fm->addr + FM_INTERRUPT_STATUS);
	74	if (irq_status == 0 \|\| irq_status == (~0)) {
	75	spin_unlock(&fm->lock);
	76	return IRQ_NONE;
	77	}
	78
	79	if (irq_status & TIFM_IRQ_ENABLE) {
	80	writel(TIFM_IRQ_ENABLE, fm->addr + FM_CLEAR_INTERRUPT_ENABLE);
	81
	82	for (cnt = 0; cnt < fm->max_sockets; cnt++) {
217334d1	83	sock = fm->sockets[cnt];
4020f2d7 AD	84	sock_irq_status = (irq_status >> cnt) &
	85	(TIFM_IRQ_FIFOMASK \| TIFM_IRQ_CARDMASK);
	86
217334d1 AD	87	if (sock) {
	88	if (sock_irq_status)
	89	sock->signal_irq(sock, sock_irq_status);
4020f2d7 AD	90
	91	if (irq_status & (1 << cnt))
	92	fm->remove_mask \|= 1 << cnt;
	93	} else {
	94	if (irq_status & (1 << cnt))
	95	fm->insert_mask \|= 1 << cnt;
	96	}
	97	}
	98	}
	99	writel(irq_status, fm->addr + FM_INTERRUPT_STATUS);
	100
	101	if (!fm->inhibit_new_cards) {
	102	if (!fm->remove_mask && !fm->insert_mask) {
	103	writel(TIFM_IRQ_ENABLE,
	104	fm->addr + FM_SET_INTERRUPT_ENABLE);
	105	} else {
	106	queue_work(fm->wq, &fm->media_remover);
	107	queue_work(fm->wq, &fm->media_inserter);
	108	}
	109	}
	110
	111	spin_unlock(&fm->lock);
	112	return IRQ_HANDLED;
	113	}
	114
e069d79d	115	static tifm_media_id tifm_7xx1_toggle_sock_power(char __iomem *sock_addr, int is_x2)
4020f2d7 AD	116	{
	117	unsigned int s_state;
	118	int cnt;
	119
	120	writel(0x0e00, sock_addr + SOCK_CONTROL);
	121
	122	for (cnt = 0; cnt < 100; cnt++) {
	123	if (!(TIFM_SOCK_STATE_POWERED &
	124	readl(sock_addr + SOCK_PRESENT_STATE)))
	125	break;
	126	msleep(10);
	127	}
	128
	129	s_state = readl(sock_addr + SOCK_PRESENT_STATE);
	130	if (!(TIFM_SOCK_STATE_OCCUPIED & s_state))
	131	return FM_NULL;
	132
	133	if (is_x2) {
	134	writel((s_state & 7) \| 0x0c00, sock_addr + SOCK_CONTROL);
	135	} else {
	136	// SmartMedia cards need extra 40 msec
	137	if (((readl(sock_addr + SOCK_PRESENT_STATE) >> 4) & 7) == 1)
	138	msleep(40);
	139	writel(readl(sock_addr + SOCK_CONTROL) \| TIFM_CTRL_LED,
	140	sock_addr + SOCK_CONTROL);
	141	msleep(10);
	142	writel((s_state & 0x7) \| 0x0c00 \| TIFM_CTRL_LED,
	143	sock_addr + SOCK_CONTROL);
	144	}
	145
	146	for (cnt = 0; cnt < 100; cnt++) {
	147	if ((TIFM_SOCK_STATE_POWERED &
	148	readl(sock_addr + SOCK_PRESENT_STATE)))
	149	break;
	150	msleep(10);
	151	}
	152
	153	if (!is_x2)
	154	writel(readl(sock_addr + SOCK_CONTROL) & (~TIFM_CTRL_LED),
	155	sock_addr + SOCK_CONTROL);
	156
	157	return (readl(sock_addr + SOCK_PRESENT_STATE) >> 4) & 7;
	158	}
	159
e069d79d AV	160	inline static char __iomem *
e069d79d AV	161	tifm_7xx1_sock_addr(char __iomem *base_addr, unsigned int sock_num)
4020f2d7 AD	162	{
	163	return base_addr + ((sock_num + 1) << 10);
	164	}
	165
c4028958	166	static void tifm_7xx1_insert_media(struct work_struct *work)
4020f2d7	167	{
c4028958 DH	168	struct tifm_adapter *fm =
c4028958 DH	169	container_of(work, struct tifm_adapter, media_inserter);
4020f2d7 AD	170	unsigned long flags;
	171	tifm_media_id media_id;
	172	char *card_name = "xx";
	173	int cnt, ok_to_register;
	174	unsigned int insert_mask;
e069d79d	175	struct tifm_dev *new_sock = NULL;
4020f2d7 AD	176
	177	if (!class_device_get(&fm->cdev))
	178	return;
	179	spin_lock_irqsave(&fm->lock, flags);
	180	insert_mask = fm->insert_mask;
	181	fm->insert_mask = 0;
	182	if (fm->inhibit_new_cards) {
	183	spin_unlock_irqrestore(&fm->lock, flags);
	184	class_device_put(&fm->cdev);
	185	return;
	186	}
	187	spin_unlock_irqrestore(&fm->lock, flags);
	188
	189	for (cnt = 0; cnt < fm->max_sockets; cnt++) {
	190	if (!(insert_mask & (1 << cnt)))
	191	continue;
	192
	193	media_id = tifm_7xx1_toggle_sock_power(tifm_7xx1_sock_addr(fm->addr, cnt),
	194	fm->max_sockets == 2);
	195	if (media_id) {
	196	ok_to_register = 0;
8e02f858	197	new_sock = tifm_alloc_device(fm);
4020f2d7 AD	198	if (new_sock) {
	199	new_sock->addr = tifm_7xx1_sock_addr(fm->addr,
	200	cnt);
	201	new_sock->media_id = media_id;
8e02f858	202	new_sock->socket_id = cnt;
4020f2d7 AD	203	switch (media_id) {
	204	case 1:
	205	card_name = "xd";
	206	break;
	207	case 2:
	208	card_name = "ms";
	209	break;
	210	case 3:
	211	card_name = "sd";
	212	break;
	213	default:
	214	break;
	215	}
	216	snprintf(new_sock->dev.bus_id, BUS_ID_SIZE,
	217	"tifm_%s%u:%u", card_name, fm->id, cnt);
	218	printk(KERN_INFO DRIVER_NAME
	219	": %s card detected in socket %d\n",
	220	card_name, cnt);
	221	spin_lock_irqsave(&fm->lock, flags);
	222	if (!fm->sockets[cnt]) {
	223	fm->sockets[cnt] = new_sock;
	224	ok_to_register = 1;
	225	}
	226	spin_unlock_irqrestore(&fm->lock, flags);
	227	if (!ok_to_register \|\|
	228	device_register(&new_sock->dev)) {
	229	spin_lock_irqsave(&fm->lock, flags);
e069d79d	230	fm->sockets[cnt] = NULL;
4020f2d7 AD	231	spin_unlock_irqrestore(&fm->lock,
	232	flags);
	233	tifm_free_device(&new_sock->dev);
	234	}
	235	}
	236	}
	237	writel((TIFM_IRQ_FIFOMASK \| TIFM_IRQ_CARDMASK) << cnt,
	238	fm->addr + FM_CLEAR_INTERRUPT_ENABLE);
	239	writel((TIFM_IRQ_FIFOMASK \| TIFM_IRQ_CARDMASK) << cnt,
	240	fm->addr + FM_SET_INTERRUPT_ENABLE);
	241	}
	242
	243	writel(TIFM_IRQ_ENABLE, fm->addr + FM_SET_INTERRUPT_ENABLE);
	244	class_device_put(&fm->cdev);
	245	}
	246
	247	static int tifm_7xx1_suspend(struct pci_dev *dev, pm_message_t state)
	248	{
	249	struct tifm_adapter *fm = pci_get_drvdata(dev);
	250	unsigned long flags;
	251
	252	spin_lock_irqsave(&fm->lock, flags);
	253	fm->inhibit_new_cards = 1;
	254	fm->remove_mask = 0xf;
	255	fm->insert_mask = 0;
	256	writel(TIFM_IRQ_ENABLE, fm->addr + FM_CLEAR_INTERRUPT_ENABLE);
	257	spin_unlock_irqrestore(&fm->lock, flags);
	258	flush_workqueue(fm->wq);
	259
c4028958	260	tifm_7xx1_remove_media(&fm->media_remover);
4020f2d7 AD	261
	262	pci_set_power_state(dev, PCI_D3hot);
	263	pci_disable_device(dev);
	264	pci_save_state(dev);
	265	return 0;
	266	}
	267
	268	static int tifm_7xx1_resume(struct pci_dev *dev)
	269	{
	270	struct tifm_adapter *fm = pci_get_drvdata(dev);
	271	unsigned long flags;
	272
	273	pci_restore_state(dev);
	274	pci_enable_device(dev);
	275	pci_set_power_state(dev, PCI_D0);
	276	pci_set_master(dev);
	277
	278	spin_lock_irqsave(&fm->lock, flags);
	279	fm->inhibit_new_cards = 0;
	280	writel(TIFM_IRQ_SETALL, fm->addr + FM_INTERRUPT_STATUS);
	281	writel(TIFM_IRQ_SETALL, fm->addr + FM_CLEAR_INTERRUPT_ENABLE);
	282	writel(TIFM_IRQ_ENABLE \| TIFM_IRQ_SETALLSOCK,
	283	fm->addr + FM_SET_INTERRUPT_ENABLE);
	284	fm->insert_mask = 0xf;
	285	spin_unlock_irqrestore(&fm->lock, flags);
	286	return 0;
	287	}
	288
	289	static int tifm_7xx1_probe(struct pci_dev *dev,
	290	const struct pci_device_id *dev_id)
	291	{
	292	struct tifm_adapter *fm;
	293	int pci_dev_busy = 0;
	294	int rc;
	295
	296	rc = pci_set_dma_mask(dev, DMA_32BIT_MASK);
	297	if (rc)
	298	return rc;
	299
	300	rc = pci_enable_device(dev);
	301	if (rc)
	302	return rc;
	303
	304	pci_set_master(dev);
	305
	306	rc = pci_request_regions(dev, DRIVER_NAME);
	307	if (rc) {
	308	pci_dev_busy = 1;
	309	goto err_out;
	310	}
	311
	312	pci_intx(dev, 1);
	313
	314	fm = tifm_alloc_adapter();
	315	if (!fm) {
	316	rc = -ENOMEM;
	317	goto err_out_int;
	318	}
	319
	320	fm->dev = &dev->dev;
	321	fm->max_sockets = (dev->device == 0x803B) ? 2 : 4;
	322	fm->sockets = kzalloc(sizeof(struct tifm_dev) fm->max_sockets,
	323	GFP_KERNEL);
	324	if (!fm->sockets)
325	goto err_out_free;
326
c4028958 DH	327	INIT_WORK(&fm->media_inserter, tifm_7xx1_insert_media);
c4028958 DH	328	INIT_WORK(&fm->media_remover, tifm_7xx1_remove_media);
4020f2d7 AD	329	fm->eject = tifm_7xx1_eject;
	330	pci_set_drvdata(dev, fm);
	331
	332	fm->addr = ioremap(pci_resource_start(dev, 0),
	333	pci_resource_len(dev, 0));
	334	if (!fm->addr)
	335	goto err_out_free;
	336
	337	rc = request_irq(dev->irq, tifm_7xx1_isr, SA_SHIRQ, DRIVER_NAME, fm);
	338	if (rc)
	339	goto err_out_unmap;
	340
	341	rc = tifm_add_adapter(fm);
	342	if (rc)
	343	goto err_out_irq;
	344
	345	writel(TIFM_IRQ_SETALL, fm->addr + FM_CLEAR_INTERRUPT_ENABLE);
	346	writel(TIFM_IRQ_ENABLE \| TIFM_IRQ_SETALLSOCK,
	347	fm->addr + FM_SET_INTERRUPT_ENABLE);
	348
	349	fm->insert_mask = 0xf;
	350
	351	return 0;
	352
	353	err_out_irq:
	354	free_irq(dev->irq, fm);
	355	err_out_unmap:
	356	iounmap(fm->addr);
	357	err_out_free:
	358	pci_set_drvdata(dev, NULL);
	359	tifm_free_adapter(fm);
	360	err_out_int:
	361	pci_intx(dev, 0);
	362	pci_release_regions(dev);
	363	err_out:
	364	if (!pci_dev_busy)
	365	pci_disable_device(dev);
	366	return rc;
	367	}
	368
	369	static void tifm_7xx1_remove(struct pci_dev *dev)
	370	{
	371	struct tifm_adapter *fm = pci_get_drvdata(dev);
	372	unsigned long flags;
	373
	374	spin_lock_irqsave(&fm->lock, flags);
	375	fm->inhibit_new_cards = 1;
	376	fm->remove_mask = 0xf;
	377	fm->insert_mask = 0;
	378	writel(TIFM_IRQ_ENABLE, fm->addr + FM_CLEAR_INTERRUPT_ENABLE);
	379	spin_unlock_irqrestore(&fm->lock, flags);
	380
	381	flush_workqueue(fm->wq);
	382
c4028958	383	tifm_7xx1_remove_media(&fm->media_remover);
4020f2d7 AD	384
	385	writel(TIFM_IRQ_SETALL, fm->addr + FM_CLEAR_INTERRUPT_ENABLE);
	386	free_irq(dev->irq, fm);
	387
	388	tifm_remove_adapter(fm);
	389
e069d79d	390	pci_set_drvdata(dev, NULL);
4020f2d7 AD	391
	392	iounmap(fm->addr);
	393	pci_intx(dev, 0);
	394	pci_release_regions(dev);
	395
	396	pci_disable_device(dev);
	397	tifm_free_adapter(fm);
	398	}
	399
	400	static struct pci_device_id tifm_7xx1_pci_tbl [] = {
	401	{ PCI_VENDOR_ID_TI, 0x8033, PCI_ANY_ID, PCI_ANY_ID, 0, 0,
	402	0 }, /* xx21 - the one I have */
	403	{ PCI_VENDOR_ID_TI, 0x803B, PCI_ANY_ID, PCI_ANY_ID, 0, 0,
	404	0 }, /* xx12 - should be also supported */
	405	{ }
	406	};
	407
	408	static struct pci_driver tifm_7xx1_driver = {
	409	.name = DRIVER_NAME,
	410	.id_table = tifm_7xx1_pci_tbl,
	411	.probe = tifm_7xx1_probe,
	412	.remove = tifm_7xx1_remove,
	413	.suspend = tifm_7xx1_suspend,
	414	.resume = tifm_7xx1_resume,
	415	};
	416
	417	static int __init tifm_7xx1_init(void)
	418	{
	419	return pci_register_driver(&tifm_7xx1_driver);
	420	}
	421
	422	static void __exit tifm_7xx1_exit(void)
	423	{
	424	pci_unregister_driver(&tifm_7xx1_driver);
	425	}
	426
	427	MODULE_AUTHOR("Alex Dubov");
	428	MODULE_DESCRIPTION("TI FlashMedia host driver");
	429	MODULE_LICENSE("GPL");
	430	MODULE_DEVICE_TABLE(pci, tifm_7xx1_pci_tbl);
	431	MODULE_VERSION(DRIVER_VERSION);
	432
	433	module_init(tifm_7xx1_init);
	434	module_exit(tifm_7xx1_exit);