[GitHub/mt8127/android_kernel_alcatel_ttab.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,

	.clear_tt_buffer_complete	= ehci_clear_tt_buffer_complete,
};

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,
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,
914b7012 AS	78
914b7012 AS	79	.clear_tt_buffer_complete = ehci_clear_tt_buffer_complete,
ad75a410 GL	80	};
ad75a410 GL	81
31348517	82	static int __devinit ps3_ehci_probe(struct ps3_system_bus_device *dev)
ad75a410 GL	83	{
	84	int result;
	85	struct usb_hcd *hcd;
	86	unsigned int virq;
284901a9	87	static u64 dummy_mask = DMA_BIT_MASK(32);
ad75a410 GL	88
	89	if (usb_disabled()) {
	90	result = -ENODEV;
	91	goto fail_start;
	92	}
	93
7a4eb7fd GL	94	result = ps3_open_hv_device(dev);
	95
	96	if (result) {
	97	dev_dbg(&dev->core, "%s:%d: ps3_open_hv_device failed\n",
	98	__func__, __LINE__);
	99	goto fail_open;
	100	}
	101
	102	result = ps3_dma_region_create(dev->d_region);
	103
	104	if (result) {
	105	dev_dbg(&dev->core, "%s:%d: ps3_dma_region_create failed: "
	106	"(%d)\n", __func__, __LINE__, result);
	107	BUG_ON("check region type");
	108	goto fail_dma_region;
	109	}
	110
ad75a410 GL	111	result = ps3_mmio_region_create(dev->m_region);
	112
	113	if (result) {
	114	dev_dbg(&dev->core, "%s:%d: ps3_map_mmio_region failed\n",
	115	__func__, __LINE__);
	116	result = -EPERM;
7a4eb7fd	117	goto fail_mmio_region;
ad75a410 GL	118	}
	119
	120	dev_dbg(&dev->core, "%s:%d: mmio mapped_addr %lxh\n", __func__,
	121	__LINE__, dev->m_region->lpar_addr);
	122
dc4f60c2	123	result = ps3_io_irq_setup(PS3_BINDING_CPU_ANY, dev->interrupt_id, &virq);
ad75a410 GL	124
	125	if (result) {
	126	dev_dbg(&dev->core, "%s:%d: ps3_construct_io_irq(%d) failed.\n",
	127	__func__, __LINE__, virq);
	128	result = -EPERM;
	129	goto fail_irq;
	130	}
	131
ad75a410 GL	132	dev->core.dma_mask = &dummy_mask; /* FIXME: for improper usb code */
ad75a410 GL	133
7071a3ce	134	hcd = usb_create_hcd(&ps3_ehci_hc_driver, &dev->core, dev_name(&dev->core));
ad75a410 GL	135
	136	if (!hcd) {
	137	dev_dbg(&dev->core, "%s:%d: usb_create_hcd failed\n", __func__,
	138	__LINE__);
	139	result = -ENOMEM;
	140	goto fail_create_hcd;
	141	}
	142
	143	hcd->rsrc_start = dev->m_region->lpar_addr;
	144	hcd->rsrc_len = dev->m_region->len;
7a4eb7fd GL	145
	146	if (!request_mem_region(hcd->rsrc_start, hcd->rsrc_len, hcd_name))
	147	dev_dbg(&dev->core, "%s:%d: request_mem_region failed\n",
	148	__func__, __LINE__);
	149
ad75a410 GL	150	hcd->regs = ioremap(dev->m_region->lpar_addr, dev->m_region->len);
	151
	152	if (!hcd->regs) {
	153	dev_dbg(&dev->core, "%s:%d: ioremap failed\n", __func__,
	154	__LINE__);
	155	result = -EPERM;
	156	goto fail_ioremap;
	157	}
	158
	159	dev_dbg(&dev->core, "%s:%d: hcd->rsrc_start %lxh\n", __func__, __LINE__,
	160	(unsigned long)hcd->rsrc_start);
	161	dev_dbg(&dev->core, "%s:%d: hcd->rsrc_len %lxh\n", __func__, __LINE__,
	162	(unsigned long)hcd->rsrc_len);
	163	dev_dbg(&dev->core, "%s:%d: hcd->regs %lxh\n", __func__, __LINE__,
	164	(unsigned long)hcd->regs);
	165	dev_dbg(&dev->core, "%s:%d: virq %lu\n", __func__, __LINE__,
	166	(unsigned long)virq);
	167
03fa68c2	168	ps3_system_bus_set_drvdata(dev, hcd);
ad75a410 GL	169
	170	result = usb_add_hcd(hcd, virq, IRQF_DISABLED);
	171
	172	if (result) {
	173	dev_dbg(&dev->core, "%s:%d: usb_add_hcd failed (%d)\n",
	174	__func__, __LINE__, result);
	175	goto fail_add_hcd;
	176	}
	177
	178	return result;
	179
	180	fail_add_hcd:
	181	iounmap(hcd->regs);
	182	fail_ioremap:
7a4eb7fd	183	release_mem_region(hcd->rsrc_start, hcd->rsrc_len);
ad75a410 GL	184	usb_put_hcd(hcd);
ad75a410 GL	185	fail_create_hcd:
dc4f60c2	186	ps3_io_irq_destroy(virq);
ad75a410 GL	187	fail_irq:
ad75a410 GL	188	ps3_free_mmio_region(dev->m_region);
7a4eb7fd GL	189	fail_mmio_region:
	190	ps3_dma_region_free(dev->d_region);
	191	fail_dma_region:
	192	ps3_close_hv_device(dev);
	193	fail_open:
ad75a410 GL	194	fail_start:
	195	return result;
	196	}
	197
7a4eb7fd	198	static int ps3_ehci_remove(struct ps3_system_bus_device *dev)
ad75a410	199	{
7a4eb7fd	200	unsigned int tmp;
03fa68c2	201	struct usb_hcd *hcd = ps3_system_bus_get_drvdata(dev);
ad75a410	202
7a4eb7fd GL	203	BUG_ON(!hcd);
	204
	205	dev_dbg(&dev->core, "%s:%d: regs %p\n", __func__, __LINE__, hcd->regs);
	206	dev_dbg(&dev->core, "%s:%d: irq %u\n", __func__, __LINE__, hcd->irq);
	207
	208	tmp = hcd->irq;
	209
ddcb01ff	210	ehci_shutdown(hcd);
7a4eb7fd GL	211	usb_remove_hcd(hcd);
7a4eb7fd GL	212
03fa68c2	213	ps3_system_bus_set_drvdata(dev, NULL);
ad75a410	214
7a4eb7fd GL	215	BUG_ON(!hcd->regs);
	216	iounmap(hcd->regs);
	217
	218	release_mem_region(hcd->rsrc_start, hcd->rsrc_len);
	219	usb_put_hcd(hcd);
	220
	221	ps3_io_irq_destroy(tmp);
	222	ps3_free_mmio_region(dev->m_region);
	223
	224	ps3_dma_region_free(dev->d_region);
	225	ps3_close_hv_device(dev);
	226
ad75a410 GL	227	return 0;
	228	}
	229
31348517	230	static int __init ps3_ehci_driver_register(struct ps3_system_bus_driver *drv)
7a4eb7fd GL	231	{
	232	return firmware_has_feature(FW_FEATURE_PS3_LV1)
	233	? ps3_system_bus_driver_register(drv)
	234	: 0;
	235	}
	236
	237	static void ps3_ehci_driver_unregister(struct ps3_system_bus_driver *drv)
	238	{
	239	if (firmware_has_feature(FW_FEATURE_PS3_LV1))
	240	ps3_system_bus_driver_unregister(drv);
	241	}
	242
	243	MODULE_ALIAS(PS3_MODULE_ALIAS_EHCI);
ad75a410	244
7a4eb7fd GL	245	static struct ps3_system_bus_driver ps3_ehci_driver = {
	246	.core.name = "ps3-ehci-driver",
	247	.core.owner = THIS_MODULE,
ad75a410	248	.match_id = PS3_MATCH_ID_EHCI,
7a4eb7fd GL	249	.probe = ps3_ehci_probe,
	250	.remove = ps3_ehci_remove,
	251	.shutdown = ps3_ehci_remove,
ad75a410	252	};