[mirror_ubuntu-artful-kernel.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,
	.endpoint_reset		= ehci_endpoint_reset,
	.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 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_driver_data(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 =
		(struct usb_hcd *)ps3_system_bus_get_driver_data(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_driver_data(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 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,
b18ffd49	68	.endpoint_reset = ehci_endpoint_reset,
ad75a410 GL	69	.get_frame_number = ehci_get_frame,
	70	.hub_status_data = ehci_hub_status_data,
	71	.hub_control = ehci_hub_control,
	72	#if defined(CONFIG_PM)
	73	.bus_suspend = ehci_bus_suspend,
	74	.bus_resume = ehci_bus_resume,
	75	#endif
90da096e	76	.relinquish_port = ehci_relinquish_port,
3a31155c	77	.port_handed_over = ehci_port_handed_over,
ad75a410 GL	78	};
ad75a410 GL	79
7a4eb7fd	80	static int ps3_ehci_probe(struct ps3_system_bus_device *dev)
ad75a410 GL	81	{
	82	int result;
	83	struct usb_hcd *hcd;
	84	unsigned int virq;
284901a9	85	static u64 dummy_mask = DMA_BIT_MASK(32);
ad75a410 GL	86
	87	if (usb_disabled()) {
	88	result = -ENODEV;
	89	goto fail_start;
	90	}
	91
7a4eb7fd GL	92	result = ps3_open_hv_device(dev);
	93
	94	if (result) {
	95	dev_dbg(&dev->core, "%s:%d: ps3_open_hv_device failed\n",
	96	__func__, __LINE__);
	97	goto fail_open;
	98	}
	99
	100	result = ps3_dma_region_create(dev->d_region);
	101
	102	if (result) {
	103	dev_dbg(&dev->core, "%s:%d: ps3_dma_region_create failed: "
	104	"(%d)\n", __func__, __LINE__, result);
	105	BUG_ON("check region type");
	106	goto fail_dma_region;
	107	}
	108
ad75a410 GL	109	result = ps3_mmio_region_create(dev->m_region);
	110
	111	if (result) {
	112	dev_dbg(&dev->core, "%s:%d: ps3_map_mmio_region failed\n",
	113	__func__, __LINE__);
	114	result = -EPERM;
7a4eb7fd	115	goto fail_mmio_region;
ad75a410 GL	116	}
	117
	118	dev_dbg(&dev->core, "%s:%d: mmio mapped_addr %lxh\n", __func__,
	119	__LINE__, dev->m_region->lpar_addr);
	120
dc4f60c2	121	result = ps3_io_irq_setup(PS3_BINDING_CPU_ANY, dev->interrupt_id, &virq);
ad75a410 GL	122
	123	if (result) {
	124	dev_dbg(&dev->core, "%s:%d: ps3_construct_io_irq(%d) failed.\n",
	125	__func__, __LINE__, virq);
	126	result = -EPERM;
	127	goto fail_irq;
	128	}
	129
ad75a410 GL	130	dev->core.dma_mask = &dummy_mask; /* FIXME: for improper usb code */
ad75a410 GL	131
7071a3ce	132	hcd = usb_create_hcd(&ps3_ehci_hc_driver, &dev->core, dev_name(&dev->core));
ad75a410 GL	133
	134	if (!hcd) {
	135	dev_dbg(&dev->core, "%s:%d: usb_create_hcd failed\n", __func__,
	136	__LINE__);
	137	result = -ENOMEM;
	138	goto fail_create_hcd;
	139	}
	140
	141	hcd->rsrc_start = dev->m_region->lpar_addr;
	142	hcd->rsrc_len = dev->m_region->len;
7a4eb7fd GL	143
	144	if (!request_mem_region(hcd->rsrc_start, hcd->rsrc_len, hcd_name))
	145	dev_dbg(&dev->core, "%s:%d: request_mem_region failed\n",
	146	__func__, __LINE__);
	147
ad75a410 GL	148	hcd->regs = ioremap(dev->m_region->lpar_addr, dev->m_region->len);
	149
	150	if (!hcd->regs) {
	151	dev_dbg(&dev->core, "%s:%d: ioremap failed\n", __func__,
	152	__LINE__);
	153	result = -EPERM;
	154	goto fail_ioremap;
	155	}
	156
	157	dev_dbg(&dev->core, "%s:%d: hcd->rsrc_start %lxh\n", __func__, __LINE__,
	158	(unsigned long)hcd->rsrc_start);
	159	dev_dbg(&dev->core, "%s:%d: hcd->rsrc_len %lxh\n", __func__, __LINE__,
	160	(unsigned long)hcd->rsrc_len);
	161	dev_dbg(&dev->core, "%s:%d: hcd->regs %lxh\n", __func__, __LINE__,
	162	(unsigned long)hcd->regs);
	163	dev_dbg(&dev->core, "%s:%d: virq %lu\n", __func__, __LINE__,
	164	(unsigned long)virq);
	165
	166	ps3_system_bus_set_driver_data(dev, hcd);
	167
	168	result = usb_add_hcd(hcd, virq, IRQF_DISABLED);
	169
	170	if (result) {
	171	dev_dbg(&dev->core, "%s:%d: usb_add_hcd failed (%d)\n",
	172	__func__, __LINE__, result);
	173	goto fail_add_hcd;
	174	}
	175
	176	return result;
	177
	178	fail_add_hcd:
	179	iounmap(hcd->regs);
	180	fail_ioremap:
7a4eb7fd	181	release_mem_region(hcd->rsrc_start, hcd->rsrc_len);
ad75a410 GL	182	usb_put_hcd(hcd);
ad75a410 GL	183	fail_create_hcd:
dc4f60c2	184	ps3_io_irq_destroy(virq);
ad75a410 GL	185	fail_irq:
ad75a410 GL	186	ps3_free_mmio_region(dev->m_region);
7a4eb7fd GL	187	fail_mmio_region:
	188	ps3_dma_region_free(dev->d_region);
	189	fail_dma_region:
	190	ps3_close_hv_device(dev);
	191	fail_open:
ad75a410 GL	192	fail_start:
	193	return result;
	194	}
	195
7a4eb7fd	196	static int ps3_ehci_remove(struct ps3_system_bus_device *dev)
ad75a410	197	{
7a4eb7fd	198	unsigned int tmp;
ad75a410 GL	199	struct usb_hcd *hcd =
	200	(struct usb_hcd *)ps3_system_bus_get_driver_data(dev);
	201
7a4eb7fd GL	202	BUG_ON(!hcd);
	203
	204	dev_dbg(&dev->core, "%s:%d: regs %p\n", __func__, __LINE__, hcd->regs);
	205	dev_dbg(&dev->core, "%s:%d: irq %u\n", __func__, __LINE__, hcd->irq);
	206
	207	tmp = hcd->irq;
	208
ddcb01ff	209	ehci_shutdown(hcd);
7a4eb7fd GL	210	usb_remove_hcd(hcd);
7a4eb7fd GL	211
ad75a410 GL	212	ps3_system_bus_set_driver_data(dev, NULL);
ad75a410 GL	213
7a4eb7fd GL	214	BUG_ON(!hcd->regs);
	215	iounmap(hcd->regs);
	216
	217	release_mem_region(hcd->rsrc_start, hcd->rsrc_len);
	218	usb_put_hcd(hcd);
	219
	220	ps3_io_irq_destroy(tmp);
	221	ps3_free_mmio_region(dev->m_region);
	222
	223	ps3_dma_region_free(dev->d_region);
	224	ps3_close_hv_device(dev);
	225
ad75a410 GL	226	return 0;
	227	}
	228
7a4eb7fd GL	229	static int ps3_ehci_driver_register(struct ps3_system_bus_driver *drv)
	230	{
	231	return firmware_has_feature(FW_FEATURE_PS3_LV1)
	232	? ps3_system_bus_driver_register(drv)
	233	: 0;
	234	}
	235
	236	static void ps3_ehci_driver_unregister(struct ps3_system_bus_driver *drv)
	237	{
	238	if (firmware_has_feature(FW_FEATURE_PS3_LV1))
	239	ps3_system_bus_driver_unregister(drv);
	240	}
	241
	242	MODULE_ALIAS(PS3_MODULE_ALIAS_EHCI);
ad75a410	243
7a4eb7fd GL	244	static struct ps3_system_bus_driver ps3_ehci_driver = {
	245	.core.name = "ps3-ehci-driver",
	246	.core.owner = THIS_MODULE,
ad75a410	247	.match_id = PS3_MATCH_ID_EHCI,
7a4eb7fd GL	248	.probe = ps3_ehci_probe,
	249	.remove = ps3_ehci_remove,
	250	.shutdown = ps3_ehci_remove,
ad75a410	251	};