[net-next-2.6.git] / drivers / usb / host / sl811_cs.c

/*
 * PCMCIA driver for SL811HS (as found in REX-CFU1U)
 * Filename: sl811_cs.c
 * Author:   Yukio Yamamoto
 *
 *  Port to sl811-hcd and 2.6.x by
 *    Botond Botyanszki <boti@rocketmail.com>
 *    Simon Pickering
 *
 *  Last update: 2005-05-12
 */

#include <linux/kernel.h>
#include <linux/module.h>
#include <linux/init.h>
#include <linux/ptrace.h>
#include <linux/slab.h>
#include <linux/string.h>
#include <linux/timer.h>
#include <linux/ioport.h>
#include <linux/platform_device.h>

#include <pcmcia/cistpl.h>
#include <pcmcia/cisreg.h>
#include <pcmcia/ds.h>

#include <linux/usb/sl811.h>

MODULE_AUTHOR("Botond Botyanszki");
MODULE_DESCRIPTION("REX-CFU1U PCMCIA driver for 2.6");
MODULE_LICENSE("GPL");


/*====================================================================*/
/* MACROS                                                             */
/*====================================================================*/

#define INFO(args...) printk(KERN_INFO "sl811_cs: " args)

/*====================================================================*/
/* VARIABLES                                                          */
/*====================================================================*/

typedef struct local_info_t {
	struct pcmcia_device	*p_dev;
} local_info_t;

static void sl811_cs_release(struct pcmcia_device * link);

/*====================================================================*/

static void release_platform_dev(struct device * dev)
{
	dev_dbg(dev, "sl811_cs platform_dev release\n");
	dev->parent = NULL;
}

static struct sl811_platform_data platform_data = {
	.potpg		= 100,
	.power		= 50,		/* == 100mA */
	// .reset	= ... FIXME:  invoke CF reset on the card
};

static struct resource resources[] = {
	[0] = {
		.flags	= IORESOURCE_IRQ,
	},
	[1] = {
		// .name   = "address",
		.flags	= IORESOURCE_IO,
	},
	[2] = {
		// .name   = "data",
		.flags	= IORESOURCE_IO,
	},
};

extern struct platform_driver sl811h_driver;

static struct platform_device platform_dev = {
	.id			= -1,
	.dev = {
		.platform_data = &platform_data,
		.release       = release_platform_dev,
	},
	.resource		= resources,
	.num_resources		= ARRAY_SIZE(resources),
};

static int sl811_hc_init(struct device *parent, resource_size_t base_addr,
			 int irq)
{
	if (platform_dev.dev.parent)
		return -EBUSY;
	platform_dev.dev.parent = parent;

	/* finish seting up the platform device */
	resources[0].start = irq;

	resources[1].start = base_addr;
	resources[1].end = base_addr;

	resources[2].start = base_addr + 1;
	resources[2].end   = base_addr + 1;

	/* The driver core will probe for us.  We know sl811-hcd has been
	 * initialized already because of the link order dependency created
	 * by referencing "sl811h_driver".
	 */
	platform_dev.name = sl811h_driver.driver.name;
	return platform_device_register(&platform_dev);
}

/*====================================================================*/

static void sl811_cs_detach(struct pcmcia_device *link)
{
	dev_dbg(&link->dev, "sl811_cs_detach\n");

	sl811_cs_release(link);

	/* This points to the parent local_info_t struct */
	kfree(link->priv);
}

static void sl811_cs_release(struct pcmcia_device * link)
{
	dev_dbg(&link->dev, "sl811_cs_release\n");

	pcmcia_disable_device(link);
	platform_device_unregister(&platform_dev);
}

static int sl811_cs_config_check(struct pcmcia_device *p_dev,
				 cistpl_cftable_entry_t *cfg,
				 cistpl_cftable_entry_t *dflt,
				 unsigned int vcc,
				 void *priv_data)
{
	if (cfg->index == 0)
		return -ENODEV;

	/* Use power settings for Vcc and Vpp if present */
	/*  Note that the CIS values need to be rescaled */
	if (cfg->vcc.present & (1<<CISTPL_POWER_VNOM)) {
		if (cfg->vcc.param[CISTPL_POWER_VNOM]/10000 != vcc)
			return -ENODEV;
	} else if (dflt->vcc.present & (1<<CISTPL_POWER_VNOM)) {
		if (dflt->vcc.param[CISTPL_POWER_VNOM]/10000 != vcc)
			return -ENODEV;
		}

	if (cfg->vpp1.present & (1<<CISTPL_POWER_VNOM))
		p_dev->vpp =
			cfg->vpp1.param[CISTPL_POWER_VNOM]/10000;
	else if (dflt->vpp1.present & (1<<CISTPL_POWER_VNOM))
		p_dev->vpp =
			dflt->vpp1.param[CISTPL_POWER_VNOM]/10000;

	/* we need an interrupt */
	p_dev->config_flags |= CONF_ENABLE_IRQ;

	/* IO window settings */
	p_dev->resource[0]->end = p_dev->resource[1]->end = 0;
	if ((cfg->io.nwin > 0) || (dflt->io.nwin > 0)) {
		cistpl_io_t *io = (cfg->io.nwin) ? &cfg->io : &dflt->io;
		p_dev->io_lines = io->flags & CISTPL_IO_LINES_MASK;

		p_dev->resource[0]->flags |= IO_DATA_PATH_WIDTH_8;
		p_dev->resource[0]->start = io->win[0].base;
		p_dev->resource[0]->end = io->win[0].len;

		return pcmcia_request_io(p_dev);
	}
	pcmcia_disable_device(p_dev);
	return -ENODEV;
}


static int sl811_cs_config(struct pcmcia_device *link)
{
	struct device		*parent = &link->dev;
	int			ret;

	dev_dbg(&link->dev, "sl811_cs_config\n");

	if (pcmcia_loop_config(link, sl811_cs_config_check, NULL))
		goto failed;

	/* require an IRQ and two registers */
	if (resource_size(link->resource[0]) < 2)
		goto failed;

	if (!link->irq)
		goto failed;

	ret = pcmcia_enable_device(link);
	if (ret)
		goto failed;

	dev_info(&link->dev, "index 0x%02x: ",
		link->config_index);
	if (link->vpp)
		printk(", Vpp %d.%d", link->vpp/10, link->vpp%10);
	printk(", irq %d", link->irq);
	printk(", io %pR", link->resource[0]);
	printk("\n");

	if (sl811_hc_init(parent, link->resource[0]->start, link->irq)
			< 0) {
failed:
		printk(KERN_WARNING "sl811_cs_config failed\n");
		sl811_cs_release(link);
		return  -ENODEV;
	}
	return 0;
}

static int sl811_cs_probe(struct pcmcia_device *link)
{
	local_info_t *local;

	local = kzalloc(sizeof(local_info_t), GFP_KERNEL);
	if (!local)
		return -ENOMEM;
	local->p_dev = link;
	link->priv = local;

	return sl811_cs_config(link);
}

static struct pcmcia_device_id sl811_ids[] = {
	PCMCIA_DEVICE_MANF_CARD(0xc015, 0x0001), /* RATOC USB HOST CF+ Card */
	PCMCIA_DEVICE_NULL,
};
MODULE_DEVICE_TABLE(pcmcia, sl811_ids);

static struct pcmcia_driver sl811_cs_driver = {
	.owner		= THIS_MODULE,
	.drv		= {
		.name	= "sl811_cs",
	},
	.probe		= sl811_cs_probe,
	.remove		= sl811_cs_detach,
	.id_table	= sl811_ids,
};

/*====================================================================*/

static int __init init_sl811_cs(void)
{
	return pcmcia_register_driver(&sl811_cs_driver);
}
module_init(init_sl811_cs);

static void __exit exit_sl811_cs(void)
{
	pcmcia_unregister_driver(&sl811_cs_driver);
}
module_exit(exit_sl811_cs);
Commit	Line	Data
c6de2b64 DB	1	/*
	2	* PCMCIA driver for SL811HS (as found in REX-CFU1U)
	3	* Filename: sl811_cs.c
	4	* Author: Yukio Yamamoto
	5	*
	6	* Port to sl811-hcd and 2.6.x by
	7	* Botond Botyanszki <boti@rocketmail.com>
	8	* Simon Pickering
	9	*
	10	* Last update: 2005-05-12
	11	*/
	12
	13	#include <linux/kernel.h>
	14	#include <linux/module.h>
	15	#include <linux/init.h>
c6de2b64 DB	16	#include <linux/ptrace.h>
	17	#include <linux/slab.h>
	18	#include <linux/string.h>
	19	#include <linux/timer.h>
	20	#include <linux/ioport.h>
d052d1be	21	#include <linux/platform_device.h>
c6de2b64	22
c6de2b64 DB	23	#include <pcmcia/cistpl.h>
	24	#include <pcmcia/cisreg.h>
	25	#include <pcmcia/ds.h>
	26
325a4af6	27	#include <linux/usb/sl811.h>
c6de2b64 DB	28
	29	MODULE_AUTHOR("Botond Botyanszki");
	30	MODULE_DESCRIPTION("REX-CFU1U PCMCIA driver for 2.6");
	31	MODULE_LICENSE("GPL");
	32
	33
	34	/====================================================================/
	35	/* MACROS */
	36	/====================================================================/
	37
c6de2b64 DB	38	#define INFO(args...) printk(KERN_INFO "sl811_cs: " args)
c6de2b64 DB	39
c6de2b64 DB	40	/====================================================================/
	41	/* VARIABLES */
	42	/====================================================================/
	43
c6de2b64	44	typedef struct local_info_t {
fd238232	45	struct pcmcia_device *p_dev;
c6de2b64 DB	46	} local_info_t;
c6de2b64 DB	47
fba395ee	48	static void sl811_cs_release(struct pcmcia_device * link);
cc3b4866	49
c6de2b64 DB	50	/====================================================================/
	51
	52	static void release_platform_dev(struct device * dev)
	53	{
9b44de20	54	dev_dbg(dev, "sl811_cs platform_dev release\n");
c6de2b64 DB	55	dev->parent = NULL;
	56	}
	57
	58	static struct sl811_platform_data platform_data = {
	59	.potpg = 100,
	60	.power = 50, /* == 100mA */
	61	// .reset = ... FIXME: invoke CF reset on the card
	62	};
	63
	64	static struct resource resources[] = {
	65	[0] = {
	66	.flags = IORESOURCE_IRQ,
	67	},
	68	[1] = {
	69	// .name = "address",
	70	.flags = IORESOURCE_IO,
	71	},
	72	[2] = {
	73	// .name = "data",
	74	.flags = IORESOURCE_IO,
	75	},
	76	};
	77
a0c53f1d	78	extern struct platform_driver sl811h_driver;
c6de2b64 DB	79
	80	static struct platform_device platform_dev = {
	81	.id = -1,
	82	.dev = {
	83	.platform_data = &platform_data,
	84	.release = release_platform_dev,
	85	},
	86	.resource = resources,
	87	.num_resources = ARRAY_SIZE(resources),
	88	};
	89
d39bd564 DB	90	static int sl811_hc_init(struct device *parent, resource_size_t base_addr,
d39bd564 DB	91	int irq)
c6de2b64 DB	92	{
	93	if (platform_dev.dev.parent)
	94	return -EBUSY;
	95	platform_dev.dev.parent = parent;
	96
	97	/* finish seting up the platform device */
	98	resources[0].start = irq;
	99
	100	resources[1].start = base_addr;
	101	resources[1].end = base_addr;
	102
	103	resources[2].start = base_addr + 1;
	104	resources[2].end = base_addr + 1;
	105
	106	/* The driver core will probe for us. We know sl811-hcd has been
c9a50cc9 DB	107	* initialized already because of the link order dependency created
c9a50cc9 DB	108	* by referencing "sl811h_driver".
c6de2b64	109	*/
a0c53f1d	110	platform_dev.name = sl811h_driver.driver.name;
c6de2b64 DB	111	return platform_device_register(&platform_dev);
	112	}
	113
	114	/====================================================================/
	115
fba395ee	116	static void sl811_cs_detach(struct pcmcia_device *link)
c6de2b64	117	{
9b44de20	118	dev_dbg(&link->dev, "sl811_cs_detach\n");
c6de2b64	119
e2d40963	120	sl811_cs_release(link);
c6de2b64	121
c6de2b64 DB	122	/* This points to the parent local_info_t struct */
	123	kfree(link->priv);
	124	}
	125
fba395ee	126	static void sl811_cs_release(struct pcmcia_device * link)
c6de2b64	127	{
9b44de20	128	dev_dbg(&link->dev, "sl811_cs_release\n");
c6de2b64	129
fba395ee	130	pcmcia_disable_device(link);
c6de2b64	131	platform_device_unregister(&platform_dev);
c6de2b64 DB	132	}
c6de2b64 DB	133
84e2d340 DB	134	static int sl811_cs_config_check(struct pcmcia_device *p_dev,
84e2d340 DB	135	cistpl_cftable_entry_t *cfg,
8e2fc39d	136	cistpl_cftable_entry_t *dflt,
ad913c11	137	unsigned int vcc,
84e2d340 DB	138	void *priv_data)
84e2d340 DB	139	{
84e2d340 DB	140	if (cfg->index == 0)
	141	return -ENODEV;
	142
84e2d340 DB	143	/* Use power settings for Vcc and Vpp if present */
	144	/* Note that the CIS values need to be rescaled */
	145	if (cfg->vcc.present & (1<<CISTPL_POWER_VNOM)) {
ad913c11	146	if (cfg->vcc.param[CISTPL_POWER_VNOM]/10000 != vcc)
84e2d340	147	return -ENODEV;
8e2fc39d	148	} else if (dflt->vcc.present & (1<<CISTPL_POWER_VNOM)) {
ad913c11	149	if (dflt->vcc.param[CISTPL_POWER_VNOM]/10000 != vcc)
84e2d340 DB	150	return -ENODEV;
	151	}
	152
	153	if (cfg->vpp1.present & (1<<CISTPL_POWER_VNOM))
e8405f0f	154	p_dev->vpp =
84e2d340	155	cfg->vpp1.param[CISTPL_POWER_VNOM]/10000;
8e2fc39d	156	else if (dflt->vpp1.present & (1<<CISTPL_POWER_VNOM))
e8405f0f	157	p_dev->vpp =
8e2fc39d	158	dflt->vpp1.param[CISTPL_POWER_VNOM]/10000;
84e2d340 DB	159
84e2d340 DB	160	/* we need an interrupt */
1ac71e5a	161	p_dev->config_flags \|= CONF_ENABLE_IRQ;
84e2d340 DB	162
84e2d340 DB	163	/* IO window settings */
90abdc3b	164	p_dev->resource[0]->end = p_dev->resource[1]->end = 0;
8e2fc39d DB	165	if ((cfg->io.nwin > 0) \|\| (dflt->io.nwin > 0)) {
8e2fc39d DB	166	cistpl_io_t *io = (cfg->io.nwin) ? &cfg->io : &dflt->io;
90abdc3b	167	p_dev->io_lines = io->flags & CISTPL_IO_LINES_MASK;
84e2d340	168
90abdc3b DB	169	p_dev->resource[0]->flags \|= IO_DATA_PATH_WIDTH_8;
	170	p_dev->resource[0]->start = io->win[0].base;
	171	p_dev->resource[0]->end = io->win[0].len;
84e2d340	172
90abdc3b	173	return pcmcia_request_io(p_dev);
84e2d340 DB	174	}
	175	pcmcia_disable_device(p_dev);
	176	return -ENODEV;
	177	}
	178
	179
15b99ac1	180	static int sl811_cs_config(struct pcmcia_device *link)
c6de2b64	181	{
dd2e5a15	182	struct device *parent = &link->dev;
9b44de20	183	int ret;
c6de2b64	184
9b44de20	185	dev_dbg(&link->dev, "sl811_cs_config\n");
c6de2b64	186
ad913c11 DB	187	if (pcmcia_loop_config(link, sl811_cs_config_check, NULL))
ad913c11 DB	188	goto failed;
c6de2b64 DB	189
c6de2b64 DB	190	/* require an IRQ and two registers */
9a017a91	191	if (resource_size(link->resource[0]) < 2)
ad913c11	192	goto failed;
eb14120f DB	193
eb14120f DB	194	if (!link->irq)
ad913c11	195	goto failed;
c6de2b64	196
1ac71e5a	197	ret = pcmcia_enable_device(link);
9b44de20 DB	198	if (ret)
9b44de20 DB	199	goto failed;
c6de2b64	200
ded6a1a3	201	dev_info(&link->dev, "index 0x%02x: ",
7feabb64	202	link->config_index);
e8405f0f DB	203	if (link->vpp)
e8405f0f DB	204	printk(", Vpp %d.%d", link->vpp/10, link->vpp%10);
eb14120f	205	printk(", irq %d", link->irq);
9a017a91	206	printk(", io %pR", link->resource[0]);
c6de2b64 DB	207	printk("\n");
c6de2b64 DB	208
9a017a91	209	if (sl811_hc_init(parent, link->resource[0]->start, link->irq)
c6de2b64	210	< 0) {
ad913c11 DB	211	failed:
ad913c11 DB	212	printk(KERN_WARNING "sl811_cs_config failed\n");
c6de2b64	213	sl811_cs_release(link);
15b99ac1	214	return -ENODEV;
c6de2b64	215	}
15b99ac1	216	return 0;
c6de2b64 DB	217	}
c6de2b64 DB	218
15b99ac1	219	static int sl811_cs_probe(struct pcmcia_device *link)
c6de2b64 DB	220	{
c6de2b64 DB	221	local_info_t *local;
c6de2b64	222
dd00cc48	223	local = kzalloc(sizeof(local_info_t), GFP_KERNEL);
c6de2b64	224	if (!local)
f8cfa618	225	return -ENOMEM;
fba395ee	226	local->p_dev = link;
c6de2b64 DB	227	link->priv = local;
c6de2b64 DB	228
15b99ac1	229	return sl811_cs_config(link);
c6de2b64 DB	230	}
c6de2b64 DB	231
22f3a8f5 DB	232	static struct pcmcia_device_id sl811_ids[] = {
	233	PCMCIA_DEVICE_MANF_CARD(0xc015, 0x0001), /* RATOC USB HOST CF+ Card */
	234	PCMCIA_DEVICE_NULL,
	235	};
	236	MODULE_DEVICE_TABLE(pcmcia, sl811_ids);
	237
c6de2b64 DB	238	static struct pcmcia_driver sl811_cs_driver = {
	239	.owner = THIS_MODULE,
	240	.drv = {
ac8b4228	241	.name = "sl811_cs",
c6de2b64	242	},
15b99ac1	243	.probe = sl811_cs_probe,
cc3b4866	244	.remove = sl811_cs_detach,
22f3a8f5	245	.id_table = sl811_ids,
c6de2b64 DB	246	};
	247
	248	/====================================================================/
	249
	250	static int __init init_sl811_cs(void)
	251	{
	252	return pcmcia_register_driver(&sl811_cs_driver);
	253	}
	254	module_init(init_sl811_cs);
	255
	256	static void __exit exit_sl811_cs(void)
	257	{
	258	pcmcia_unregister_driver(&sl811_cs_driver);
	259	}
	260	module_exit(exit_sl811_cs);