[GitHub/mt8127/android_kernel_alcatel_ttab.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 "0.6"

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

	spin_lock_irqsave(&fm->lock, flags);
	if (!fm->inhibit_new_cards) {
		for (cnt = 0; cnt < fm->max_sockets; cnt++) {
			if (fm->sockets[cnt] == sock) {
				fm->remove_mask |= (1 << cnt);
				queue_work(fm->wq, &fm->media_remover);
				break;
			}
		}
	}
	spin_unlock_irqrestore(&fm->lock, flags);
}

static void tifm_7xx1_remove_media(void *adapter)
{
	struct tifm_adapter *fm = adapter;
	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] = 0;
			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 pt_regs *regs)
{
	struct tifm_adapter *fm = dev_id;
	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_irq_status = (irq_status >> cnt) &
					(TIFM_IRQ_FIFOMASK | TIFM_IRQ_CARDMASK);

			if (fm->sockets[cnt]) {
				if (sock_irq_status &&
						fm->sockets[cnt]->signal_irq)
					sock_irq_status = fm->sockets[cnt]->
						signal_irq(fm->sockets[cnt],
							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 *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 *tifm_7xx1_sock_addr(char *base_addr, unsigned int sock_num)
{
	return base_addr + ((sock_num + 1) << 10);
}

static void tifm_7xx1_insert_media(void *adapter)
{
	struct tifm_adapter *fm = adapter;
	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 = 0;

	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, cnt);
			if (new_sock) {
				new_sock->addr = tifm_7xx1_sock_addr(fm->addr,
									cnt);
				new_sock->media_id = media_id;
				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] = 0;
					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);

	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, fm);
	INIT_WORK(&fm->media_remover, tifm_7xx1_remove_media, fm);
	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);

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

	tifm_remove_adapter(fm);

	pci_set_drvdata(dev, 0);

	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"
	16	#define DRIVER_VERSION "0.6"
	17
	18	static void tifm_7xx1_eject(struct tifm_adapter fm, struct tifm_dev sock)
	19	{
	20	int cnt;
	21	unsigned long flags;
	22
	23	spin_lock_irqsave(&fm->lock, flags);
	24	if (!fm->inhibit_new_cards) {
	25	for (cnt = 0; cnt < fm->max_sockets; cnt++) {
	26	if (fm->sockets[cnt] == sock) {
	27	fm->remove_mask \|= (1 << cnt);
	28	queue_work(fm->wq, &fm->media_remover);
	29	break;
	30	}
	31	}
	32	}
	33	spin_unlock_irqrestore(&fm->lock, flags);
	34	}
	35
	36	static void tifm_7xx1_remove_media(void *adapter)
	37	{
	38	struct tifm_adapter *fm = adapter;
	39	unsigned long flags;
	40	int cnt;
	41	struct tifm_dev *sock;
	42
	43	if (!class_device_get(&fm->cdev))
	44	return;
	45	spin_lock_irqsave(&fm->lock, flags);
	46	for (cnt = 0; cnt < fm->max_sockets; cnt++) {
	47	if (fm->sockets[cnt] && (fm->remove_mask & (1 << cnt))) {
	48	printk(KERN_INFO DRIVER_NAME
	49	": demand removing card from socket %d\n", cnt);
	50	sock = fm->sockets[cnt];
	51	fm->sockets[cnt] = 0;
	52	fm->remove_mask &= ~(1 << cnt);
	53
	54	writel(0x0e00, sock->addr + SOCK_CONTROL);
	55
	56	writel((TIFM_IRQ_FIFOMASK \| TIFM_IRQ_CARDMASK) << cnt,
	57	fm->addr + FM_CLEAR_INTERRUPT_ENABLE);
	58	writel((TIFM_IRQ_FIFOMASK \| TIFM_IRQ_CARDMASK) << cnt,
	59	fm->addr + FM_SET_INTERRUPT_ENABLE);
	60
	61	spin_unlock_irqrestore(&fm->lock, flags);
	62	device_unregister(&sock->dev);
	63	spin_lock_irqsave(&fm->lock, flags);
	64	}
65	}
66	spin_unlock_irqrestore(&fm->lock, flags);
67	class_device_put(&fm->cdev);
68	}
69
70	static irqreturn_t tifm_7xx1_isr(int irq, void dev_id, struct pt_regs regs)
71	{
72	struct tifm_adapter *fm = dev_id;
73	unsigned int irq_status;
74	unsigned int sock_irq_status, cnt;
75
76	spin_lock(&fm->lock);
77	irq_status = readl(fm->addr + FM_INTERRUPT_STATUS);
78	if (irq_status == 0 \|\| irq_status == (~0)) {
79	spin_unlock(&fm->lock);
80	return IRQ_NONE;
81	}
82
83	if (irq_status & TIFM_IRQ_ENABLE) {
84	writel(TIFM_IRQ_ENABLE, fm->addr + FM_CLEAR_INTERRUPT_ENABLE);
85
86	for (cnt = 0; cnt < fm->max_sockets; cnt++) {
87	sock_irq_status = (irq_status >> cnt) &
88	(TIFM_IRQ_FIFOMASK \| TIFM_IRQ_CARDMASK);
89
90	if (fm->sockets[cnt]) {
91	if (sock_irq_status &&
92	fm->sockets[cnt]->signal_irq)
93	sock_irq_status = fm->sockets[cnt]->
94	signal_irq(fm->sockets[cnt],
95	sock_irq_status);
96
97	if (irq_status & (1 << cnt))
98	fm->remove_mask \|= 1 << cnt;
99	} else {
100	if (irq_status & (1 << cnt))
101	fm->insert_mask \|= 1 << cnt;
102	}
103	}
104	}
105	writel(irq_status, fm->addr + FM_INTERRUPT_STATUS);
106
107	if (!fm->inhibit_new_cards) {
108	if (!fm->remove_mask && !fm->insert_mask) {
109	writel(TIFM_IRQ_ENABLE,
110	fm->addr + FM_SET_INTERRUPT_ENABLE);
111	} else {
112	queue_work(fm->wq, &fm->media_remover);
113	queue_work(fm->wq, &fm->media_inserter);
114	}
115	}
116
117	spin_unlock(&fm->lock);
118	return IRQ_HANDLED;
119	}
120
121	static tifm_media_id tifm_7xx1_toggle_sock_power(char *sock_addr, int is_x2)
122	{
123	unsigned int s_state;
124	int cnt;
125
126	writel(0x0e00, sock_addr + SOCK_CONTROL);
127
128	for (cnt = 0; cnt < 100; cnt++) {
129	if (!(TIFM_SOCK_STATE_POWERED &
130	readl(sock_addr + SOCK_PRESENT_STATE)))
131	break;
132	msleep(10);
133	}
134
135	s_state = readl(sock_addr + SOCK_PRESENT_STATE);
136	if (!(TIFM_SOCK_STATE_OCCUPIED & s_state))
137	return FM_NULL;
138
139	if (is_x2) {
140	writel((s_state & 7) \| 0x0c00, sock_addr + SOCK_CONTROL);
141	} else {
142	// SmartMedia cards need extra 40 msec
143	if (((readl(sock_addr + SOCK_PRESENT_STATE) >> 4) & 7) == 1)
144	msleep(40);
145	writel(readl(sock_addr + SOCK_CONTROL) \| TIFM_CTRL_LED,
146	sock_addr + SOCK_CONTROL);
147	msleep(10);
148	writel((s_state & 0x7) \| 0x0c00 \| TIFM_CTRL_LED,
149	sock_addr + SOCK_CONTROL);
150	}
151
152	for (cnt = 0; cnt < 100; cnt++) {
153	if ((TIFM_SOCK_STATE_POWERED &
154	readl(sock_addr + SOCK_PRESENT_STATE)))
155	break;
156	msleep(10);
157	}
158
159	if (!is_x2)
160	writel(readl(sock_addr + SOCK_CONTROL) & (~TIFM_CTRL_LED),
161	sock_addr + SOCK_CONTROL);
162
163	return (readl(sock_addr + SOCK_PRESENT_STATE) >> 4) & 7;
164	}
165
166	inline static char tifm_7xx1_sock_addr(char base_addr, unsigned int sock_num)
167	{
168	return base_addr + ((sock_num + 1) << 10);
169	}
170
171	static void tifm_7xx1_insert_media(void *adapter)
172	{
173	struct tifm_adapter *fm = adapter;
174	unsigned long flags;
175	tifm_media_id media_id;
176	char *card_name = "xx";
177	int cnt, ok_to_register;
178	unsigned int insert_mask;
179	struct tifm_dev *new_sock = 0;
180
181	if (!class_device_get(&fm->cdev))
182	return;
183	spin_lock_irqsave(&fm->lock, flags);
184	insert_mask = fm->insert_mask;
185	fm->insert_mask = 0;
186	if (fm->inhibit_new_cards) {
187	spin_unlock_irqrestore(&fm->lock, flags);
188	class_device_put(&fm->cdev);
189	return;
190	}
191	spin_unlock_irqrestore(&fm->lock, flags);
192
193	for (cnt = 0; cnt < fm->max_sockets; cnt++) {
194	if (!(insert_mask & (1 << cnt)))
195	continue;
196
197	media_id = tifm_7xx1_toggle_sock_power(tifm_7xx1_sock_addr(fm->addr, cnt),
198	fm->max_sockets == 2);
199	if (media_id) {
200	ok_to_register = 0;
201	new_sock = tifm_alloc_device(fm, cnt);
202	if (new_sock) {
203	new_sock->addr = tifm_7xx1_sock_addr(fm->addr,
204	cnt);
205	new_sock->media_id = media_id;
206	switch (media_id) {
207	case 1:
208	card_name = "xd";
209	break;
210	case 2:
211	card_name = "ms";
212	break;
213	case 3:
214	card_name = "sd";
215	break;
216	default:
217	break;
218	}
219	snprintf(new_sock->dev.bus_id, BUS_ID_SIZE,
220	"tifm_%s%u:%u", card_name, fm->id, cnt);
221	printk(KERN_INFO DRIVER_NAME
222	": %s card detected in socket %d\n",
223	card_name, cnt);
224	spin_lock_irqsave(&fm->lock, flags);
225	if (!fm->sockets[cnt]) {
226	fm->sockets[cnt] = new_sock;
227	ok_to_register = 1;
228	}
229	spin_unlock_irqrestore(&fm->lock, flags);
230	if (!ok_to_register \|\|
231	device_register(&new_sock->dev)) {
232	spin_lock_irqsave(&fm->lock, flags);
233	fm->sockets[cnt] = 0;
234	spin_unlock_irqrestore(&fm->lock,
235	flags);
236	tifm_free_device(&new_sock->dev);
237	}
238	}
239	}
240	writel((TIFM_IRQ_FIFOMASK \| TIFM_IRQ_CARDMASK) << cnt,
241	fm->addr + FM_CLEAR_INTERRUPT_ENABLE);
242	writel((TIFM_IRQ_FIFOMASK \| TIFM_IRQ_CARDMASK) << cnt,
243	fm->addr + FM_SET_INTERRUPT_ENABLE);
244	}
245
246	writel(TIFM_IRQ_ENABLE, fm->addr + FM_SET_INTERRUPT_ENABLE);
247	class_device_put(&fm->cdev);
248	}
249
250	static int tifm_7xx1_suspend(struct pci_dev *dev, pm_message_t state)
251	{
252	struct tifm_adapter *fm = pci_get_drvdata(dev);
253	unsigned long flags;
254
255	spin_lock_irqsave(&fm->lock, flags);
256	fm->inhibit_new_cards = 1;
257	fm->remove_mask = 0xf;
258	fm->insert_mask = 0;
259	writel(TIFM_IRQ_ENABLE, fm->addr + FM_CLEAR_INTERRUPT_ENABLE);
260	spin_unlock_irqrestore(&fm->lock, flags);
261	flush_workqueue(fm->wq);
262
263	tifm_7xx1_remove_media(fm);
264
265	pci_set_power_state(dev, PCI_D3hot);
266	pci_disable_device(dev);
267	pci_save_state(dev);
268	return 0;
269	}
270
271	static int tifm_7xx1_resume(struct pci_dev *dev)
272	{
273	struct tifm_adapter *fm = pci_get_drvdata(dev);
274	unsigned long flags;
275
276	pci_restore_state(dev);
277	pci_enable_device(dev);
278	pci_set_power_state(dev, PCI_D0);
279	pci_set_master(dev);
280
281	spin_lock_irqsave(&fm->lock, flags);
282	fm->inhibit_new_cards = 0;
283	writel(TIFM_IRQ_SETALL, fm->addr + FM_INTERRUPT_STATUS);
284	writel(TIFM_IRQ_SETALL, fm->addr + FM_CLEAR_INTERRUPT_ENABLE);
285	writel(TIFM_IRQ_ENABLE \| TIFM_IRQ_SETALLSOCK,
286	fm->addr + FM_SET_INTERRUPT_ENABLE);
287	fm->insert_mask = 0xf;
288	spin_unlock_irqrestore(&fm->lock, flags);
289	return 0;
290	}
291
292	static int tifm_7xx1_probe(struct pci_dev *dev,
293	const struct pci_device_id *dev_id)
294	{
295	struct tifm_adapter *fm;
296	int pci_dev_busy = 0;
297	int rc;
298
299	rc = pci_set_dma_mask(dev, DMA_32BIT_MASK);
300	if (rc)
301	return rc;
302
303	rc = pci_enable_device(dev);
304	if (rc)
305	return rc;
306
307	pci_set_master(dev);
308
309	rc = pci_request_regions(dev, DRIVER_NAME);
310	if (rc) {
311	pci_dev_busy = 1;
312	goto err_out;
313	}
314
315	pci_intx(dev, 1);
316
317	fm = tifm_alloc_adapter();
318	if (!fm) {
319	rc = -ENOMEM;
320	goto err_out_int;
321	}
322
323	fm->dev = &dev->dev;
324	fm->max_sockets = (dev->device == 0x803B) ? 2 : 4;
325	fm->sockets = kzalloc(sizeof(struct tifm_dev) fm->max_sockets,
326	GFP_KERNEL);
327	if (!fm->sockets)
328	goto err_out_free;
329
330	INIT_WORK(&fm->media_inserter, tifm_7xx1_insert_media, fm);
331	INIT_WORK(&fm->media_remover, tifm_7xx1_remove_media, fm);
332	fm->eject = tifm_7xx1_eject;
333	pci_set_drvdata(dev, fm);
334
335	fm->addr = ioremap(pci_resource_start(dev, 0),
336	pci_resource_len(dev, 0));
337	if (!fm->addr)
338	goto err_out_free;
339
340	rc = request_irq(dev->irq, tifm_7xx1_isr, SA_SHIRQ, DRIVER_NAME, fm);
341	if (rc)
342	goto err_out_unmap;
343
344	rc = tifm_add_adapter(fm);
345	if (rc)
346	goto err_out_irq;
347
348	writel(TIFM_IRQ_SETALL, fm->addr + FM_CLEAR_INTERRUPT_ENABLE);
349	writel(TIFM_IRQ_ENABLE \| TIFM_IRQ_SETALLSOCK,
350	fm->addr + FM_SET_INTERRUPT_ENABLE);
351
352	fm->insert_mask = 0xf;
353
354	return 0;
355
356	err_out_irq:
357	free_irq(dev->irq, fm);
358	err_out_unmap:
359	iounmap(fm->addr);
360	err_out_free:
361	pci_set_drvdata(dev, NULL);
362	tifm_free_adapter(fm);
363	err_out_int:
364	pci_intx(dev, 0);
365	pci_release_regions(dev);
366	err_out:
367	if (!pci_dev_busy)
368	pci_disable_device(dev);
369	return rc;
370	}
371
372	static void tifm_7xx1_remove(struct pci_dev *dev)
373	{
374	struct tifm_adapter *fm = pci_get_drvdata(dev);
375	unsigned long flags;
376
377	spin_lock_irqsave(&fm->lock, flags);
378	fm->inhibit_new_cards = 1;
379	fm->remove_mask = 0xf;
380	fm->insert_mask = 0;
381	writel(TIFM_IRQ_ENABLE, fm->addr + FM_CLEAR_INTERRUPT_ENABLE);
382	spin_unlock_irqrestore(&fm->lock, flags);
383
384	flush_workqueue(fm->wq);
385
386	tifm_7xx1_remove_media(fm);
387
388	writel(TIFM_IRQ_SETALL, fm->addr + FM_CLEAR_INTERRUPT_ENABLE);
389	free_irq(dev->irq, fm);
390
391	tifm_remove_adapter(fm);
392
393	pci_set_drvdata(dev, 0);
394
395	iounmap(fm->addr);
396	pci_intx(dev, 0);
397	pci_release_regions(dev);
398
399	pci_disable_device(dev);
400	tifm_free_adapter(fm);
401	}
402
403	static struct pci_device_id tifm_7xx1_pci_tbl [] = {
404	{ PCI_VENDOR_ID_TI, 0x8033, PCI_ANY_ID, PCI_ANY_ID, 0, 0,
405	0 }, /* xx21 - the one I have */
406	{ PCI_VENDOR_ID_TI, 0x803B, PCI_ANY_ID, PCI_ANY_ID, 0, 0,
407	0 }, /* xx12 - should be also supported */
408	{ }
409	};
410
411	static struct pci_driver tifm_7xx1_driver = {
412	.name = DRIVER_NAME,
413	.id_table = tifm_7xx1_pci_tbl,
414	.probe = tifm_7xx1_probe,
415	.remove = tifm_7xx1_remove,
416	.suspend = tifm_7xx1_suspend,
417	.resume = tifm_7xx1_resume,
418	};
419
420	static int __init tifm_7xx1_init(void)
421	{
422	return pci_register_driver(&tifm_7xx1_driver);
423	}
424
425	static void __exit tifm_7xx1_exit(void)
426	{
427	pci_unregister_driver(&tifm_7xx1_driver);
428	}
429
430	MODULE_AUTHOR("Alex Dubov");
431	MODULE_DESCRIPTION("TI FlashMedia host driver");
432	MODULE_LICENSE("GPL");
433	MODULE_DEVICE_TABLE(pci, tifm_7xx1_pci_tbl);
434	MODULE_VERSION(DRIVER_VERSION);
435
436	module_init(tifm_7xx1_init);
437	module_exit(tifm_7xx1_exit);