[net-next-2.6.git] / drivers / usb / host / ehci-ps3.c

/*
 *  PS3 EHCI Host Controller driver
 *
 *  Copyright (C) 2006 Sony Computer Entertainment Inc.
 *  Copyright 2006 Sony Corp.
 *
 *  This program is free software; you can redistribute it and/or modify
 *  it under the terms of the GNU General Public License as published by
 *  the Free Software Foundation; version 2 of the License.
 *
 *  This program is distributed in the hope that it will be useful,
 *  but WITHOUT ANY WARRANTY; without even the implied warranty of
 *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 *  GNU General Public License for more details.
 *
 *  You should have received a copy of the GNU General Public License
 *  along with this program; if not, write to the Free Software
 *  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
 */

#include <asm/firmware.h>
#include <asm/ps3.h>

static int ps3_ehci_hc_reset(struct usb_hcd *hcd)
{
	int result;
	struct ehci_hcd *ehci = hcd_to_ehci(hcd);

	ehci->big_endian_mmio = 1;

	ehci->caps = hcd->regs;
	ehci->regs = hcd->regs + HC_LENGTH(ehci_readl(ehci,
		&ehci->caps->hc_capbase));

	dbg_hcs_params(ehci, "reset");
	dbg_hcc_params(ehci, "reset");

	ehci->hcs_params = ehci_readl(ehci, &ehci->caps->hcs_params);

	result = ehci_halt(ehci);

	if (result)
		return result;

	result = ehci_init(hcd);

	if (result)
		return result;

	ehci_reset(ehci);

	return result;
}

static const struct hc_driver ps3_ehci_hc_driver = {
	.description		= hcd_name,
	.product_desc		= "PS3 EHCI Host Controller",
	.hcd_priv_size		= sizeof(struct ehci_hcd),
	.irq			= ehci_irq,
	.flags			= HCD_MEMORY | HCD_USB2,
	.reset			= ps3_ehci_hc_reset,
	.start			= ehci_run,
	.stop			= ehci_stop,
	.shutdown		= ehci_shutdown,
	.urb_enqueue		= ehci_urb_enqueue,
	.urb_dequeue		= ehci_urb_dequeue,
	.endpoint_disable	= ehci_endpoint_disable,
	.get_frame_number	= ehci_get_frame,
	.hub_status_data	= ehci_hub_status_data,
	.hub_control		= ehci_hub_control,
#if defined(CONFIG_PM)
	.bus_suspend		= ehci_bus_suspend,
	.bus_resume		= ehci_bus_resume,
#endif
	.relinquish_port	= ehci_relinquish_port,
	.port_handed_over	= ehci_port_handed_over,
};

static int __devinit ps3_ehci_probe(struct ps3_system_bus_device *dev)
{
	int result;
	struct usb_hcd *hcd;
	unsigned int virq;
	static u64 dummy_mask = DMA_BIT_MASK(32);

	if (usb_disabled()) {
		result = -ENODEV;
		goto fail_start;
	}

	result = ps3_open_hv_device(dev);

	if (result) {
		dev_dbg(&dev->core, "%s:%d: ps3_open_hv_device failed\n",
			__func__, __LINE__);
		goto fail_open;
	}

	result = ps3_dma_region_create(dev->d_region);

	if (result) {
		dev_dbg(&dev->core, "%s:%d: ps3_dma_region_create failed: "
			"(%d)\n", __func__, __LINE__, result);
		BUG_ON("check region type");
		goto fail_dma_region;
	}

	result = ps3_mmio_region_create(dev->m_region);

	if (result) {
		dev_dbg(&dev->core, "%s:%d: ps3_map_mmio_region failed\n",
			__func__, __LINE__);
		result = -EPERM;
		goto fail_mmio_region;
	}

	dev_dbg(&dev->core, "%s:%d: mmio mapped_addr %lxh\n", __func__,
		__LINE__, dev->m_region->lpar_addr);

	result = ps3_io_irq_setup(PS3_BINDING_CPU_ANY, dev->interrupt_id, &virq);

	if (result) {
		dev_dbg(&dev->core, "%s:%d: ps3_construct_io_irq(%d) failed.\n",
			__func__, __LINE__, virq);
		result = -EPERM;
		goto fail_irq;
	}

	dev->core.dma_mask = &dummy_mask; /* FIXME: for improper usb code */

	hcd = usb_create_hcd(&ps3_ehci_hc_driver, &dev->core, dev_name(&dev->core));

	if (!hcd) {
		dev_dbg(&dev->core, "%s:%d: usb_create_hcd failed\n", __func__,
			__LINE__);
		result = -ENOMEM;
		goto fail_create_hcd;
	}

	hcd->rsrc_start = dev->m_region->lpar_addr;
	hcd->rsrc_len = dev->m_region->len;

	if (!request_mem_region(hcd->rsrc_start, hcd->rsrc_len, hcd_name))
		dev_dbg(&dev->core, "%s:%d: request_mem_region failed\n",
			__func__, __LINE__);

	hcd->regs = ioremap(dev->m_region->lpar_addr, dev->m_region->len);

	if (!hcd->regs) {
		dev_dbg(&dev->core, "%s:%d: ioremap failed\n", __func__,
			__LINE__);
		result = -EPERM;
		goto fail_ioremap;
	}

	dev_dbg(&dev->core, "%s:%d: hcd->rsrc_start %lxh\n", __func__, __LINE__,
		(unsigned long)hcd->rsrc_start);
	dev_dbg(&dev->core, "%s:%d: hcd->rsrc_len   %lxh\n", __func__, __LINE__,
		(unsigned long)hcd->rsrc_len);
	dev_dbg(&dev->core, "%s:%d: hcd->regs       %lxh\n", __func__, __LINE__,
		(unsigned long)hcd->regs);
	dev_dbg(&dev->core, "%s:%d: virq            %lu\n", __func__, __LINE__,
		(unsigned long)virq);

	ps3_system_bus_set_drvdata(dev, hcd);

	result = usb_add_hcd(hcd, virq, IRQF_DISABLED);

	if (result) {
		dev_dbg(&dev->core, "%s:%d: usb_add_hcd failed (%d)\n",
			__func__, __LINE__, result);
		goto fail_add_hcd;
	}

	return result;

fail_add_hcd:
	iounmap(hcd->regs);
fail_ioremap:
	release_mem_region(hcd->rsrc_start, hcd->rsrc_len);
	usb_put_hcd(hcd);
fail_create_hcd:
	ps3_io_irq_destroy(virq);
fail_irq:
	ps3_free_mmio_region(dev->m_region);
fail_mmio_region:
	ps3_dma_region_free(dev->d_region);
fail_dma_region:
	ps3_close_hv_device(dev);
fail_open:
fail_start:
	return result;
}

static int ps3_ehci_remove(struct ps3_system_bus_device *dev)
{
	unsigned int tmp;
	struct usb_hcd *hcd = ps3_system_bus_get_drvdata(dev);

	BUG_ON(!hcd);

	dev_dbg(&dev->core, "%s:%d: regs %p\n", __func__, __LINE__, hcd->regs);
	dev_dbg(&dev->core, "%s:%d: irq %u\n", __func__, __LINE__, hcd->irq);

	tmp = hcd->irq;

	ehci_shutdown(hcd);
	usb_remove_hcd(hcd);

	ps3_system_bus_set_drvdata(dev, NULL);

	BUG_ON(!hcd->regs);
	iounmap(hcd->regs);

	release_mem_region(hcd->rsrc_start, hcd->rsrc_len);
	usb_put_hcd(hcd);

	ps3_io_irq_destroy(tmp);
	ps3_free_mmio_region(dev->m_region);

	ps3_dma_region_free(dev->d_region);
	ps3_close_hv_device(dev);

	return 0;
}

static int __init ps3_ehci_driver_register(struct ps3_system_bus_driver *drv)
{
	return firmware_has_feature(FW_FEATURE_PS3_LV1)
		? ps3_system_bus_driver_register(drv)
		: 0;
}

static void ps3_ehci_driver_unregister(struct ps3_system_bus_driver *drv)
{
	if (firmware_has_feature(FW_FEATURE_PS3_LV1))
		ps3_system_bus_driver_unregister(drv);
}

MODULE_ALIAS(PS3_MODULE_ALIAS_EHCI);

static struct ps3_system_bus_driver ps3_ehci_driver = {
	.core.name = "ps3-ehci-driver",
	.core.owner = THIS_MODULE,
	.match_id = PS3_MATCH_ID_EHCI,
	.probe = ps3_ehci_probe,
	.remove = ps3_ehci_remove,
	.shutdown = ps3_ehci_remove,
};
Commit	Line	Data
ad75a410 GL	1	/*
	2	* PS3 EHCI Host Controller driver
	3	*
	4	* Copyright (C) 2006 Sony Computer Entertainment Inc.
	5	* Copyright 2006 Sony Corp.
	6	*
	7	* This program is free software; you can redistribute it and/or modify
	8	* it under the terms of the GNU General Public License as published by
	9	* the Free Software Foundation; version 2 of the License.
	10	*
	11	* This program is distributed in the hope that it will be useful,
	12	* but WITHOUT ANY WARRANTY; without even the implied warranty of
	13	* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
	14	* GNU General Public License for more details.
	15	*
	16	* You should have received a copy of the GNU General Public License
	17	* along with this program; if not, write to the Free Software
	18	* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
	19	*/
	20
7a4eb7fd	21	#include <asm/firmware.h>
ad75a410 GL	22	#include <asm/ps3.h>
	23
	24	static int ps3_ehci_hc_reset(struct usb_hcd *hcd)
	25	{
	26	int result;
	27	struct ehci_hcd *ehci = hcd_to_ehci(hcd);
	28
	29	ehci->big_endian_mmio = 1;
	30
	31	ehci->caps = hcd->regs;
	32	ehci->regs = hcd->regs + HC_LENGTH(ehci_readl(ehci,
	33	&ehci->caps->hc_capbase));
	34
	35	dbg_hcs_params(ehci, "reset");
	36	dbg_hcc_params(ehci, "reset");
	37
	38	ehci->hcs_params = ehci_readl(ehci, &ehci->caps->hcs_params);
	39
	40	result = ehci_halt(ehci);
	41
	42	if (result)
	43	return result;
	44
	45	result = ehci_init(hcd);
	46
	47	if (result)
	48	return result;
	49
af1c51fc	50	ehci_reset(ehci);
ad75a410 GL	51
	52	return result;
	53	}
	54
	55	static const struct hc_driver ps3_ehci_hc_driver = {
	56	.description = hcd_name,
	57	.product_desc = "PS3 EHCI Host Controller",
	58	.hcd_priv_size = sizeof(struct ehci_hcd),
	59	.irq = ehci_irq,
	60	.flags = HCD_MEMORY \| HCD_USB2,
	61	.reset = ps3_ehci_hc_reset,
	62	.start = ehci_run,
	63	.stop = ehci_stop,
	64	.shutdown = ehci_shutdown,
	65	.urb_enqueue = ehci_urb_enqueue,
	66	.urb_dequeue = ehci_urb_dequeue,
	67	.endpoint_disable = ehci_endpoint_disable,
	68	.get_frame_number = ehci_get_frame,
	69	.hub_status_data = ehci_hub_status_data,
	70	.hub_control = ehci_hub_control,
	71	#if defined(CONFIG_PM)
	72	.bus_suspend = ehci_bus_suspend,
	73	.bus_resume = ehci_bus_resume,
	74	#endif
90da096e	75	.relinquish_port = ehci_relinquish_port,
3a31155c	76	.port_handed_over = ehci_port_handed_over,
ad75a410 GL	77	};
ad75a410 GL	78
31348517	79	static int __devinit ps3_ehci_probe(struct ps3_system_bus_device *dev)
ad75a410 GL	80	{
	81	int result;
	82	struct usb_hcd *hcd;
	83	unsigned int virq;
284901a9	84	static u64 dummy_mask = DMA_BIT_MASK(32);
ad75a410 GL	85
	86	if (usb_disabled()) {
	87	result = -ENODEV;
	88	goto fail_start;
	89	}
	90
7a4eb7fd GL	91	result = ps3_open_hv_device(dev);
	92
	93	if (result) {
	94	dev_dbg(&dev->core, "%s:%d: ps3_open_hv_device failed\n",
	95	__func__, __LINE__);
	96	goto fail_open;
	97	}
	98
	99	result = ps3_dma_region_create(dev->d_region);
	100
	101	if (result) {
	102	dev_dbg(&dev->core, "%s:%d: ps3_dma_region_create failed: "
	103	"(%d)\n", __func__, __LINE__, result);
	104	BUG_ON("check region type");
	105	goto fail_dma_region;
	106	}
	107
ad75a410 GL	108	result = ps3_mmio_region_create(dev->m_region);
	109
	110	if (result) {
	111	dev_dbg(&dev->core, "%s:%d: ps3_map_mmio_region failed\n",
	112	__func__, __LINE__);
	113	result = -EPERM;
7a4eb7fd	114	goto fail_mmio_region;
ad75a410 GL	115	}
	116
	117	dev_dbg(&dev->core, "%s:%d: mmio mapped_addr %lxh\n", __func__,
	118	__LINE__, dev->m_region->lpar_addr);
	119
dc4f60c2	120	result = ps3_io_irq_setup(PS3_BINDING_CPU_ANY, dev->interrupt_id, &virq);
ad75a410 GL	121
	122	if (result) {
	123	dev_dbg(&dev->core, "%s:%d: ps3_construct_io_irq(%d) failed.\n",
	124	__func__, __LINE__, virq);
	125	result = -EPERM;
	126	goto fail_irq;
	127	}
	128
ad75a410 GL	129	dev->core.dma_mask = &dummy_mask; /* FIXME: for improper usb code */
ad75a410 GL	130
7071a3ce	131	hcd = usb_create_hcd(&ps3_ehci_hc_driver, &dev->core, dev_name(&dev->core));
ad75a410 GL	132
	133	if (!hcd) {
	134	dev_dbg(&dev->core, "%s:%d: usb_create_hcd failed\n", __func__,
	135	__LINE__);
	136	result = -ENOMEM;
	137	goto fail_create_hcd;
	138	}
	139
	140	hcd->rsrc_start = dev->m_region->lpar_addr;
	141	hcd->rsrc_len = dev->m_region->len;
7a4eb7fd GL	142
	143	if (!request_mem_region(hcd->rsrc_start, hcd->rsrc_len, hcd_name))
	144	dev_dbg(&dev->core, "%s:%d: request_mem_region failed\n",
	145	__func__, __LINE__);
	146
ad75a410 GL	147	hcd->regs = ioremap(dev->m_region->lpar_addr, dev->m_region->len);
	148
	149	if (!hcd->regs) {
	150	dev_dbg(&dev->core, "%s:%d: ioremap failed\n", __func__,
	151	__LINE__);
	152	result = -EPERM;
	153	goto fail_ioremap;
	154	}
	155
	156	dev_dbg(&dev->core, "%s:%d: hcd->rsrc_start %lxh\n", __func__, __LINE__,
	157	(unsigned long)hcd->rsrc_start);
	158	dev_dbg(&dev->core, "%s:%d: hcd->rsrc_len %lxh\n", __func__, __LINE__,
	159	(unsigned long)hcd->rsrc_len);
	160	dev_dbg(&dev->core, "%s:%d: hcd->regs %lxh\n", __func__, __LINE__,
	161	(unsigned long)hcd->regs);
	162	dev_dbg(&dev->core, "%s:%d: virq %lu\n", __func__, __LINE__,
	163	(unsigned long)virq);
	164
03fa68c2	165	ps3_system_bus_set_drvdata(dev, hcd);
ad75a410 GL	166
	167	result = usb_add_hcd(hcd, virq, IRQF_DISABLED);
	168
	169	if (result) {
	170	dev_dbg(&dev->core, "%s:%d: usb_add_hcd failed (%d)\n",
	171	__func__, __LINE__, result);
	172	goto fail_add_hcd;
	173	}
	174
	175	return result;
	176
	177	fail_add_hcd:
	178	iounmap(hcd->regs);
	179	fail_ioremap:
7a4eb7fd	180	release_mem_region(hcd->rsrc_start, hcd->rsrc_len);
ad75a410 GL	181	usb_put_hcd(hcd);
ad75a410 GL	182	fail_create_hcd:
dc4f60c2	183	ps3_io_irq_destroy(virq);
ad75a410 GL	184	fail_irq:
ad75a410 GL	185	ps3_free_mmio_region(dev->m_region);
7a4eb7fd GL	186	fail_mmio_region:
	187	ps3_dma_region_free(dev->d_region);
	188	fail_dma_region:
	189	ps3_close_hv_device(dev);
	190	fail_open:
ad75a410 GL	191	fail_start:
	192	return result;
	193	}
	194
7a4eb7fd	195	static int ps3_ehci_remove(struct ps3_system_bus_device *dev)
ad75a410	196	{
7a4eb7fd	197	unsigned int tmp;
03fa68c2	198	struct usb_hcd *hcd = ps3_system_bus_get_drvdata(dev);
ad75a410	199
7a4eb7fd GL	200	BUG_ON(!hcd);
	201
	202	dev_dbg(&dev->core, "%s:%d: regs %p\n", __func__, __LINE__, hcd->regs);
	203	dev_dbg(&dev->core, "%s:%d: irq %u\n", __func__, __LINE__, hcd->irq);
	204
	205	tmp = hcd->irq;
	206
ddcb01ff	207	ehci_shutdown(hcd);
7a4eb7fd GL	208	usb_remove_hcd(hcd);
7a4eb7fd GL	209
03fa68c2	210	ps3_system_bus_set_drvdata(dev, NULL);
ad75a410	211
7a4eb7fd GL	212	BUG_ON(!hcd->regs);
	213	iounmap(hcd->regs);
	214
	215	release_mem_region(hcd->rsrc_start, hcd->rsrc_len);
	216	usb_put_hcd(hcd);
	217
	218	ps3_io_irq_destroy(tmp);
	219	ps3_free_mmio_region(dev->m_region);
	220
	221	ps3_dma_region_free(dev->d_region);
	222	ps3_close_hv_device(dev);
	223
ad75a410 GL	224	return 0;
	225	}
	226
31348517	227	static int __init ps3_ehci_driver_register(struct ps3_system_bus_driver *drv)
7a4eb7fd GL	228	{
	229	return firmware_has_feature(FW_FEATURE_PS3_LV1)
	230	? ps3_system_bus_driver_register(drv)
	231	: 0;
	232	}
	233
	234	static void ps3_ehci_driver_unregister(struct ps3_system_bus_driver *drv)
	235	{
	236	if (firmware_has_feature(FW_FEATURE_PS3_LV1))
	237	ps3_system_bus_driver_unregister(drv);
	238	}
	239
	240	MODULE_ALIAS(PS3_MODULE_ALIAS_EHCI);
ad75a410	241
7a4eb7fd GL	242	static struct ps3_system_bus_driver ps3_ehci_driver = {
	243	.core.name = "ps3-ehci-driver",
	244	.core.owner = THIS_MODULE,
ad75a410	245	.match_id = PS3_MATCH_ID_EHCI,
7a4eb7fd GL	246	.probe = ps3_ehci_probe,
	247	.remove = ps3_ehci_remove,
	248	.shutdown = ps3_ehci_remove,
ad75a410	249	};