[people/ms/u-boot.git] / drivers / usb / musb-new / musb_uboot.c

#include <common.h>
#include <console.h>
#include <watchdog.h>
#ifdef CONFIG_ARCH_SUNXI
#include <asm/arch/usb_phy.h>
#endif
#include <asm/errno.h>
#include <linux/usb/ch9.h>
#include <linux/usb/gadget.h>

#include <usb.h>
#include "linux-compat.h"
#include "usb-compat.h"
#include "musb_core.h"
#include "musb_host.h"
#include "musb_gadget.h"
#include "musb_uboot.h"

#ifdef CONFIG_USB_MUSB_HOST
struct int_queue {
	struct usb_host_endpoint hep;
	struct urb urb;
};

#ifndef CONFIG_DM_USB
struct musb_host_data musb_host;
#endif

static void musb_host_complete_urb(struct urb *urb)
{
	urb->dev->status &= ~USB_ST_NOT_PROC;
	urb->dev->act_len = urb->actual_length;
}

static void construct_urb(struct urb *urb, struct usb_host_endpoint *hep,
			  struct usb_device *dev, int endpoint_type,
			  unsigned long pipe, void *buffer, int len,
			  struct devrequest *setup, int interval)
{
	int epnum = usb_pipeendpoint(pipe);
	int is_in = usb_pipein(pipe);

	memset(urb, 0, sizeof(struct urb));
	memset(hep, 0, sizeof(struct usb_host_endpoint));
	INIT_LIST_HEAD(&hep->urb_list);
	INIT_LIST_HEAD(&urb->urb_list);
	urb->ep = hep;
	urb->complete = musb_host_complete_urb;
	urb->status = -EINPROGRESS;
	urb->dev = dev;
	urb->pipe = pipe;
	urb->transfer_buffer = buffer;
	urb->transfer_dma = (unsigned long)buffer;
	urb->transfer_buffer_length = len;
	urb->setup_packet = (unsigned char *)setup;

	urb->ep->desc.wMaxPacketSize =
		__cpu_to_le16(is_in ? dev->epmaxpacketin[epnum] :
				dev->epmaxpacketout[epnum]);
	urb->ep->desc.bmAttributes = endpoint_type;
	urb->ep->desc.bEndpointAddress =
		(is_in ? USB_DIR_IN : USB_DIR_OUT) | epnum;
	urb->ep->desc.bInterval = interval;
}

static int submit_urb(struct usb_hcd *hcd, struct urb *urb)
{
	struct musb *host = hcd->hcd_priv;
	int ret;
	unsigned long timeout;

	ret = musb_urb_enqueue(hcd, urb, 0);
	if (ret < 0) {
		printf("Failed to enqueue URB to controller\n");
		return ret;
	}

	timeout = get_timer(0) + USB_TIMEOUT_MS(urb->pipe);
	do {
		if (ctrlc())
			return -EIO;
		host->isr(0, host);
	} while (urb->status == -EINPROGRESS &&
		 get_timer(0) < timeout);

	if (urb->status == -EINPROGRESS)
		musb_urb_dequeue(hcd, urb, -ETIME);

	return urb->status;
}

static int _musb_submit_control_msg(struct musb_host_data *host,
	struct usb_device *dev, unsigned long pipe,
	void *buffer, int len, struct devrequest *setup)
{
	construct_urb(&host->urb, &host->hep, dev, USB_ENDPOINT_XFER_CONTROL,
		      pipe, buffer, len, setup, 0);

	/* Fix speed for non hub-attached devices */
	if (!usb_dev_get_parent(dev))
		dev->speed = host->host_speed;

	return submit_urb(&host->hcd, &host->urb);
}

static int _musb_submit_bulk_msg(struct musb_host_data *host,
	struct usb_device *dev, unsigned long pipe, void *buffer, int len)
{
	construct_urb(&host->urb, &host->hep, dev, USB_ENDPOINT_XFER_BULK,
		      pipe, buffer, len, NULL, 0);
	return submit_urb(&host->hcd, &host->urb);
}

static int _musb_submit_int_msg(struct musb_host_data *host,
	struct usb_device *dev, unsigned long pipe,
	void *buffer, int len, int interval)
{
	construct_urb(&host->urb, &host->hep, dev, USB_ENDPOINT_XFER_INT, pipe,
		      buffer, len, NULL, interval);
	return submit_urb(&host->hcd, &host->urb);
}

static struct int_queue *_musb_create_int_queue(struct musb_host_data *host,
	struct usb_device *dev, unsigned long pipe, int queuesize,
	int elementsize, void *buffer, int interval)
{
	struct int_queue *queue;
	int ret, index = usb_pipein(pipe) * 16 + usb_pipeendpoint(pipe);

	if (queuesize != 1) {
		printf("ERROR musb int-queues only support queuesize 1\n");
		return NULL;
	}

	if (dev->int_pending & (1 << index)) {
		printf("ERROR int-urb is already pending on pipe %lx\n", pipe);
		return NULL;
	}

	queue = malloc(sizeof(*queue));
	if (!queue)
		return NULL;

	construct_urb(&queue->urb, &queue->hep, dev, USB_ENDPOINT_XFER_INT,
		      pipe, buffer, elementsize, NULL, interval);

	ret = musb_urb_enqueue(&host->hcd, &queue->urb, 0);
	if (ret < 0) {
		printf("Failed to enqueue URB to controller\n");
		free(queue);
		return NULL;
	}

	dev->int_pending |= 1 << index;
	return queue;
}

static int _musb_destroy_int_queue(struct musb_host_data *host,
	struct usb_device *dev, struct int_queue *queue)
{
	int index = usb_pipein(queue->urb.pipe) * 16 + 
		    usb_pipeendpoint(queue->urb.pipe);

	if (queue->urb.status == -EINPROGRESS)
		musb_urb_dequeue(&host->hcd, &queue->urb, -ETIME);

	dev->int_pending &= ~(1 << index);
	free(queue);
	return 0;
}

static void *_musb_poll_int_queue(struct musb_host_data *host,
	struct usb_device *dev, struct int_queue *queue)
{
	if (queue->urb.status != -EINPROGRESS)
		return NULL; /* URB has already completed in a prev. poll */

	host->host->isr(0, host->host);

	if (queue->urb.status != -EINPROGRESS)
		return queue->urb.transfer_buffer; /* Done */

	return NULL; /* URB still pending */
}

static int _musb_reset_root_port(struct musb_host_data *host,
	struct usb_device *dev)
{
	void *mbase = host->host->mregs;
	u8 power;

	power = musb_readb(mbase, MUSB_POWER);
	power &= 0xf0;
	musb_writeb(mbase, MUSB_POWER, MUSB_POWER_RESET | power);
	mdelay(50);
#ifdef CONFIG_ARCH_SUNXI
	/*
	 * sunxi phy has a bug and it will wrongly detect high speed squelch
	 * when clearing reset on low-speed devices, temporary disable
	 * squelch detection to work around this.
	 */
	sunxi_usb_phy_enable_squelch_detect(0, 0);
#endif
	power = musb_readb(mbase, MUSB_POWER);
	musb_writeb(mbase, MUSB_POWER, ~MUSB_POWER_RESET & power);
#ifdef CONFIG_ARCH_SUNXI
	sunxi_usb_phy_enable_squelch_detect(0, 1);
#endif
	host->host->isr(0, host->host);
	host->host_speed = (musb_readb(mbase, MUSB_POWER) & MUSB_POWER_HSMODE) ?
			USB_SPEED_HIGH :
			(musb_readb(mbase, MUSB_DEVCTL) & MUSB_DEVCTL_FSDEV) ?
			USB_SPEED_FULL : USB_SPEED_LOW;
	mdelay((host->host_speed == USB_SPEED_LOW) ? 200 : 50);

	return 0;
}

int musb_lowlevel_init(struct musb_host_data *host)
{
	void *mbase;
	/* USB spec says it may take up to 1 second for a device to connect */
	unsigned long timeout = get_timer(0) + 1000;
	int ret;

	if (!host->host) {
		printf("MUSB host is not registered\n");
		return -ENODEV;
	}

	ret = musb_start(host->host);
	if (ret)
		return ret;

	mbase = host->host->mregs;
	do {
		if (musb_readb(mbase, MUSB_DEVCTL) & MUSB_DEVCTL_HM)
			break;
	} while (get_timer(0) < timeout);
	if (get_timer(0) >= timeout) {
		musb_stop(host->host);
		return -ENODEV;
	}

	_musb_reset_root_port(host, NULL);
	host->host->is_active = 1;
	host->hcd.hcd_priv = host->host;

	return 0;
}

#ifndef CONFIG_DM_USB
int usb_lowlevel_stop(int index)
{
	if (!musb_host.host) {
		printf("MUSB host is not registered\n");
		return -ENODEV;
	}

	musb_stop(musb_host.host);
	return 0;
}

int submit_bulk_msg(struct usb_device *dev, unsigned long pipe,
			    void *buffer, int length)
{
	return _musb_submit_bulk_msg(&musb_host, dev, pipe, buffer, length);
}

int submit_control_msg(struct usb_device *dev, unsigned long pipe,
		       void *buffer, int length, struct devrequest *setup)
{
	return _musb_submit_control_msg(&musb_host, dev, pipe, buffer, length, setup);
}

int submit_int_msg(struct usb_device *dev, unsigned long pipe,
		   void *buffer, int length, int interval)
{
	return _musb_submit_int_msg(&musb_host, dev, pipe, buffer, length, interval);
}

struct int_queue *create_int_queue(struct usb_device *dev,
		unsigned long pipe, int queuesize, int elementsize,
		void *buffer, int interval)
{
	return _musb_create_int_queue(&musb_host, dev, pipe, queuesize, elementsize,
				      buffer, interval);
}

void *poll_int_queue(struct usb_device *dev, struct int_queue *queue)
{
	return _musb_poll_int_queue(&musb_host, dev, queue);
}

int destroy_int_queue(struct usb_device *dev, struct int_queue *queue)
{
	return _musb_destroy_int_queue(&musb_host, dev, queue);
}

int usb_reset_root_port(struct usb_device *dev)
{
	return _musb_reset_root_port(&musb_host, dev);
}

int usb_lowlevel_init(int index, enum usb_init_type init, void **controller)
{
	return musb_lowlevel_init(&musb_host);
}
#endif /* !CONFIG_DM_USB */

#ifdef CONFIG_DM_USB
static int musb_submit_control_msg(struct udevice *dev, struct usb_device *udev,
				   unsigned long pipe, void *buffer, int length,
				   struct devrequest *setup)
{
	struct musb_host_data *host = dev_get_priv(dev);
	return _musb_submit_control_msg(host, udev, pipe, buffer, length, setup);
}

static int musb_submit_bulk_msg(struct udevice *dev, struct usb_device *udev,
				unsigned long pipe, void *buffer, int length)
{
	struct musb_host_data *host = dev_get_priv(dev);
	return _musb_submit_bulk_msg(host, udev, pipe, buffer, length);
}

static int musb_submit_int_msg(struct udevice *dev, struct usb_device *udev,
			       unsigned long pipe, void *buffer, int length,
			       int interval)
{
	struct musb_host_data *host = dev_get_priv(dev);
	return _musb_submit_int_msg(host, udev, pipe, buffer, length, interval);
}

static struct int_queue *musb_create_int_queue(struct udevice *dev,
		struct usb_device *udev, unsigned long pipe, int queuesize,
		int elementsize, void *buffer, int interval)
{
	struct musb_host_data *host = dev_get_priv(dev);
	return _musb_create_int_queue(host, udev, pipe, queuesize, elementsize,
				      buffer, interval);
}

static void *musb_poll_int_queue(struct udevice *dev, struct usb_device *udev,
				 struct int_queue *queue)
{
	struct musb_host_data *host = dev_get_priv(dev);
	return _musb_poll_int_queue(host, udev, queue);
}

static int musb_destroy_int_queue(struct udevice *dev, struct usb_device *udev,
				  struct int_queue *queue)
{
	struct musb_host_data *host = dev_get_priv(dev);
	return _musb_destroy_int_queue(host, udev, queue);
}

static int musb_reset_root_port(struct udevice *dev, struct usb_device *udev)
{
	struct musb_host_data *host = dev_get_priv(dev);
	return _musb_reset_root_port(host, udev);
}

struct dm_usb_ops musb_usb_ops = {
	.control = musb_submit_control_msg,
	.bulk = musb_submit_bulk_msg,
	.interrupt = musb_submit_int_msg,
	.create_int_queue = musb_create_int_queue,
	.poll_int_queue = musb_poll_int_queue,
	.destroy_int_queue = musb_destroy_int_queue,
	.reset_root_port = musb_reset_root_port,
};
#endif /* CONFIG_DM_USB */
#endif /* CONFIG_USB_MUSB_HOST */

#ifdef CONFIG_USB_MUSB_GADGET
static struct musb *gadget;

int usb_gadget_handle_interrupts(int index)
{
	WATCHDOG_RESET();
	if (!gadget || !gadget->isr)
		return -EINVAL;

	return gadget->isr(0, gadget);
}

int usb_gadget_register_driver(struct usb_gadget_driver *driver)
{
	int ret;

	if (!driver || driver->speed < USB_SPEED_FULL || !driver->bind ||
	    !driver->setup) {
		printf("bad parameter.\n");
		return -EINVAL;
	}

	if (!gadget) {
		printf("Controller uninitialized\n");
		return -ENXIO;
	}

	ret = musb_gadget_start(&gadget->g, driver);
	if (ret < 0) {
		printf("gadget_start failed with %d\n", ret);
		return ret;
	}

	ret = driver->bind(&gadget->g);
	if (ret < 0) {
		printf("bind failed with %d\n", ret);
		return ret;
	}

	return 0;
}

int usb_gadget_unregister_driver(struct usb_gadget_driver *driver)
{
	if (driver->disconnect)
		driver->disconnect(&gadget->g);
	if (driver->unbind)
		driver->unbind(&gadget->g);
	return 0;
}
#endif /* CONFIG_USB_MUSB_GADGET */

int musb_register(struct musb_hdrc_platform_data *plat, void *bdata,
			void *ctl_regs)
{
	struct musb **musbp;

	switch (plat->mode) {
#if defined(CONFIG_USB_MUSB_HOST) && !defined(CONFIG_DM_USB)
	case MUSB_HOST:
		musbp = &musb_host.host;
		break;
#endif
#ifdef CONFIG_USB_MUSB_GADGET
	case MUSB_PERIPHERAL:
		musbp = &gadget;
		break;
#endif
	default:
		return -EINVAL;
	}

	*musbp = musb_init_controller(plat, (struct device *)bdata, ctl_regs);
	if (!musbp) {
		printf("Failed to init the controller\n");
		return -EIO;
	}

	return 0;
}
Commit	Line	Data
eb81955b	1	#include <common.h>
24b852a7	2	#include <console.h>
7a342785	3	#include <watchdog.h>
246e3b87	4	#ifdef CONFIG_ARCH_SUNXI
2aacc423	5	#include <asm/arch/usb_phy.h>
246e3b87	6	#endif
eb81955b IY	7	#include <asm/errno.h>
	8	#include <linux/usb/ch9.h>
	9	#include <linux/usb/gadget.h>
	10
eb81955b IY	11	#include <usb.h>
	12	#include "linux-compat.h"
	13	#include "usb-compat.h"
	14	#include "musb_core.h"
	15	#include "musb_host.h"
	16	#include "musb_gadget.h"
fc85d39e	17	#include "musb_uboot.h"
eb81955b	18
95de1e2f	19	#ifdef CONFIG_USB_MUSB_HOST
904f2a83 HG	20	struct int_queue {
	21	struct usb_host_endpoint hep;
	22	struct urb urb;
	23	};
	24
09e7ea47	25	#ifndef CONFIG_DM_USB
fc85d39e	26	struct musb_host_data musb_host;
09e7ea47	27	#endif
eb81955b IY	28
	29	static void musb_host_complete_urb(struct urb *urb)
	30	{
	31	urb->dev->status &= ~USB_ST_NOT_PROC;
	32	urb->dev->act_len = urb->actual_length;
	33	}
	34
accf04c2 HG	35	static void construct_urb(struct urb urb, struct usb_host_endpoint hep,
	36	struct usb_device *dev, int endpoint_type,
	37	unsigned long pipe, void *buffer, int len,
	38	struct devrequest *setup, int interval)
eb81955b IY	39	{
	40	int epnum = usb_pipeendpoint(pipe);
	41	int is_in = usb_pipein(pipe);
	42
accf04c2 HG	43	memset(urb, 0, sizeof(struct urb));
	44	memset(hep, 0, sizeof(struct usb_host_endpoint));
	45	INIT_LIST_HEAD(&hep->urb_list);
	46	INIT_LIST_HEAD(&urb->urb_list);
	47	urb->ep = hep;
	48	urb->complete = musb_host_complete_urb;
	49	urb->status = -EINPROGRESS;
	50	urb->dev = dev;
	51	urb->pipe = pipe;
	52	urb->transfer_buffer = buffer;
	53	urb->transfer_dma = (unsigned long)buffer;
	54	urb->transfer_buffer_length = len;
	55	urb->setup_packet = (unsigned char *)setup;
	56
	57	urb->ep->desc.wMaxPacketSize =
eb81955b IY	58	__cpu_to_le16(is_in ? dev->epmaxpacketin[epnum] :
eb81955b IY	59	dev->epmaxpacketout[epnum]);
accf04c2 HG	60	urb->ep->desc.bmAttributes = endpoint_type;
accf04c2 HG	61	urb->ep->desc.bEndpointAddress =
eb81955b	62	(is_in ? USB_DIR_IN : USB_DIR_OUT) \| epnum;
accf04c2	63	urb->ep->desc.bInterval = interval;
eb81955b IY	64	}
eb81955b IY	65
eb81955b IY	66	static int submit_urb(struct usb_hcd hcd, struct urb urb)
	67	{
	68	struct musb *host = hcd->hcd_priv;
	69	int ret;
dc9a3912	70	unsigned long timeout;
eb81955b IY	71
	72	ret = musb_urb_enqueue(hcd, urb, 0);
	73	if (ret < 0) {
	74	printf("Failed to enqueue URB to controller\n");
	75	return ret;
	76	}
	77
dc9a3912	78	timeout = get_timer(0) + USB_TIMEOUT_MS(urb->pipe);
eb81955b IY	79	do {
	80	if (ctrlc())
	81	return -EIO;
	82	host->isr(0, host);
e8672e3f	83	} while (urb->status == -EINPROGRESS &&
dc9a3912	84	get_timer(0) < timeout);
eb81955b	85
b918a0c6 HG	86	if (urb->status == -EINPROGRESS)
	87	musb_urb_dequeue(hcd, urb, -ETIME);
	88
eb81955b IY	89	return urb->status;
	90	}
	91
fc85d39e HG	92	static int _musb_submit_control_msg(struct musb_host_data *host,
	93	struct usb_device *dev, unsigned long pipe,
	94	void buffer, int len, struct devrequest setup)
eb81955b	95	{
fc85d39e HG	96	construct_urb(&host->urb, &host->hep, dev, USB_ENDPOINT_XFER_CONTROL,
fc85d39e HG	97	pipe, buffer, len, setup, 0);
eb81955b IY	98
eb81955b IY	99	/* Fix speed for non hub-attached devices */
e740ca3c	100	if (!usb_dev_get_parent(dev))
fc85d39e	101	dev->speed = host->host_speed;
eb81955b	102
fc85d39e	103	return submit_urb(&host->hcd, &host->urb);
eb81955b IY	104	}
eb81955b IY	105
fc85d39e HG	106	static int _musb_submit_bulk_msg(struct musb_host_data *host,
fc85d39e HG	107	struct usb_device dev, unsigned long pipe, void buffer, int len)
eb81955b	108	{
fc85d39e HG	109	construct_urb(&host->urb, &host->hep, dev, USB_ENDPOINT_XFER_BULK,
	110	pipe, buffer, len, NULL, 0);
	111	return submit_urb(&host->hcd, &host->urb);
eb81955b IY	112	}
eb81955b IY	113
fc85d39e HG	114	static int _musb_submit_int_msg(struct musb_host_data *host,
	115	struct usb_device *dev, unsigned long pipe,
	116	void *buffer, int len, int interval)
eb81955b	117	{
fc85d39e	118	construct_urb(&host->urb, &host->hep, dev, USB_ENDPOINT_XFER_INT, pipe,
accf04c2	119	buffer, len, NULL, interval);
fc85d39e	120	return submit_urb(&host->hcd, &host->urb);
eb81955b IY	121	}
eb81955b IY	122
fc85d39e HG	123	static struct int_queue _musb_create_int_queue(struct musb_host_data host,
	124	struct usb_device *dev, unsigned long pipe, int queuesize,
	125	int elementsize, void *buffer, int interval)
904f2a83 HG	126	{
	127	struct int_queue *queue;
	128	int ret, index = usb_pipein(pipe) * 16 + usb_pipeendpoint(pipe);
	129
	130	if (queuesize != 1) {
	131	printf("ERROR musb int-queues only support queuesize 1\n");
	132	return NULL;
	133	}
	134
	135	if (dev->int_pending & (1 << index)) {
	136	printf("ERROR int-urb is already pending on pipe %lx\n", pipe);
	137	return NULL;
	138	}
	139
	140	queue = malloc(sizeof(*queue));
	141	if (!queue)
	142	return NULL;
	143
	144	construct_urb(&queue->urb, &queue->hep, dev, USB_ENDPOINT_XFER_INT,
	145	pipe, buffer, elementsize, NULL, interval);
	146
fc85d39e	147	ret = musb_urb_enqueue(&host->hcd, &queue->urb, 0);
904f2a83 HG	148	if (ret < 0) {
	149	printf("Failed to enqueue URB to controller\n");
	150	free(queue);
	151	return NULL;
	152	}
	153
	154	dev->int_pending \|= 1 << index;
	155	return queue;
	156	}
	157
fc85d39e HG	158	static int _musb_destroy_int_queue(struct musb_host_data *host,
fc85d39e HG	159	struct usb_device dev, struct int_queue queue)
904f2a83 HG	160	{
	161	int index = usb_pipein(queue->urb.pipe) * 16 +
	162	usb_pipeendpoint(queue->urb.pipe);
	163
	164	if (queue->urb.status == -EINPROGRESS)
fc85d39e	165	musb_urb_dequeue(&host->hcd, &queue->urb, -ETIME);
904f2a83 HG	166
	167	dev->int_pending &= ~(1 << index);
	168	free(queue);
	169	return 0;
	170	}
	171
fc85d39e HG	172	static void _musb_poll_int_queue(struct musb_host_data host,
fc85d39e HG	173	struct usb_device dev, struct int_queue queue)
904f2a83 HG	174	{
	175	if (queue->urb.status != -EINPROGRESS)
	176	return NULL; /* URB has already completed in a prev. poll */
	177
fc85d39e	178	host->host->isr(0, host->host);
904f2a83 HG	179
	180	if (queue->urb.status != -EINPROGRESS)
	181	return queue->urb.transfer_buffer; /* Done */
	182
	183	return NULL; /* URB still pending */
	184	}
	185
fc85d39e HG	186	static int _musb_reset_root_port(struct musb_host_data *host,
fc85d39e HG	187	struct usb_device *dev)
eb81955b	188	{
fc85d39e	189	void *mbase = host->host->mregs;
eb81955b	190	u8 power;
90cdc103 HG	191
	192	power = musb_readb(mbase, MUSB_POWER);
	193	power &= 0xf0;
	194	musb_writeb(mbase, MUSB_POWER, MUSB_POWER_RESET \| power);
	195	mdelay(50);
246e3b87 HG	196	#ifdef CONFIG_ARCH_SUNXI
	197	/*
	198	* sunxi phy has a bug and it will wrongly detect high speed squelch
	199	* when clearing reset on low-speed devices, temporary disable
	200	* squelch detection to work around this.
	201	*/
7b798658	202	sunxi_usb_phy_enable_squelch_detect(0, 0);
246e3b87	203	#endif
90cdc103 HG	204	power = musb_readb(mbase, MUSB_POWER);
90cdc103 HG	205	musb_writeb(mbase, MUSB_POWER, ~MUSB_POWER_RESET & power);
246e3b87	206	#ifdef CONFIG_ARCH_SUNXI
7b798658	207	sunxi_usb_phy_enable_squelch_detect(0, 1);
246e3b87	208	#endif
fc85d39e HG	209	host->host->isr(0, host->host);
fc85d39e HG	210	host->host_speed = (musb_readb(mbase, MUSB_POWER) & MUSB_POWER_HSMODE) ?
90cdc103 HG	211	USB_SPEED_HIGH :
	212	(musb_readb(mbase, MUSB_DEVCTL) & MUSB_DEVCTL_FSDEV) ?
	213	USB_SPEED_FULL : USB_SPEED_LOW;
fc85d39e	214	mdelay((host->host_speed == USB_SPEED_LOW) ? 200 : 50);
de31213f SG	215
de31213f SG	216	return 0;
90cdc103 HG	217	}
90cdc103 HG	218
fc85d39e	219	int musb_lowlevel_init(struct musb_host_data *host)
90cdc103	220	{
eb81955b	221	void *mbase;
dc9a3912 HG	222	/* USB spec says it may take up to 1 second for a device to connect */
dc9a3912 HG	223	unsigned long timeout = get_timer(0) + 1000;
15837236	224	int ret;
eb81955b	225
fc85d39e	226	if (!host->host) {
eb81955b IY	227	printf("MUSB host is not registered\n");
	228	return -ENODEV;
	229	}
	230
fc85d39e	231	ret = musb_start(host->host);
15837236 HG	232	if (ret)
	233	return ret;
	234
fc85d39e	235	mbase = host->host->mregs;
eb81955b IY	236	do {
	237	if (musb_readb(mbase, MUSB_DEVCTL) & MUSB_DEVCTL_HM)
	238	break;
dc9a3912	239	} while (get_timer(0) < timeout);
bf313230 HG	240	if (get_timer(0) >= timeout) {
bf313230 HG	241	musb_stop(host->host);
eb81955b	242	return -ENODEV;
bf313230	243	}
eb81955b	244
fc85d39e HG	245	_musb_reset_root_port(host, NULL);
	246	host->host->is_active = 1;
	247	host->hcd.hcd_priv = host->host;
eb81955b IY	248
	249	return 0;
	250	}
	251
09e7ea47	252	#ifndef CONFIG_DM_USB
eb81955b IY	253	int usb_lowlevel_stop(int index)
eb81955b IY	254	{
fc85d39e	255	if (!musb_host.host) {
eb81955b IY	256	printf("MUSB host is not registered\n");
	257	return -ENODEV;
	258	}
	259
fc85d39e	260	musb_stop(musb_host.host);
eb81955b IY	261	return 0;
eb81955b IY	262	}
1398252a HG	263
	264	int submit_bulk_msg(struct usb_device *dev, unsigned long pipe,
	265	void *buffer, int length)
	266	{
fc85d39e	267	return _musb_submit_bulk_msg(&musb_host, dev, pipe, buffer, length);
1398252a HG	268	}
	269
	270	int submit_control_msg(struct usb_device *dev, unsigned long pipe,
	271	void buffer, int length, struct devrequest setup)
	272	{
fc85d39e	273	return _musb_submit_control_msg(&musb_host, dev, pipe, buffer, length, setup);
1398252a HG	274	}
	275
	276	int submit_int_msg(struct usb_device *dev, unsigned long pipe,
	277	void *buffer, int length, int interval)
	278	{
fc85d39e	279	return _musb_submit_int_msg(&musb_host, dev, pipe, buffer, length, interval);
1398252a HG	280	}
	281
	282	struct int_queue create_int_queue(struct usb_device dev,
	283	unsigned long pipe, int queuesize, int elementsize,
	284	void *buffer, int interval)
	285	{
fc85d39e	286	return _musb_create_int_queue(&musb_host, dev, pipe, queuesize, elementsize,
1398252a HG	287	buffer, interval);
	288	}
	289
	290	void poll_int_queue(struct usb_device dev, struct int_queue *queue)
	291	{
fc85d39e	292	return _musb_poll_int_queue(&musb_host, dev, queue);
1398252a HG	293	}
	294
	295	int destroy_int_queue(struct usb_device dev, struct int_queue queue)
	296	{
fc85d39e	297	return _musb_destroy_int_queue(&musb_host, dev, queue);
1398252a HG	298	}
	299
	300	int usb_reset_root_port(struct usb_device *dev)
	301	{
fc85d39e	302	return _musb_reset_root_port(&musb_host, dev);
1398252a HG	303	}
	304
	305	int usb_lowlevel_init(int index, enum usb_init_type init, void **controller)
	306	{
fc85d39e	307	return musb_lowlevel_init(&musb_host);
1398252a	308	}
09e7ea47 HG	309	#endif /* !CONFIG_DM_USB */
	310
	311	#ifdef CONFIG_DM_USB
	312	static int musb_submit_control_msg(struct udevice dev, struct usb_device udev,
	313	unsigned long pipe, void *buffer, int length,
	314	struct devrequest *setup)
	315	{
	316	struct musb_host_data *host = dev_get_priv(dev);
	317	return _musb_submit_control_msg(host, udev, pipe, buffer, length, setup);
	318	}
	319
	320	static int musb_submit_bulk_msg(struct udevice dev, struct usb_device udev,
	321	unsigned long pipe, void *buffer, int length)
	322	{
	323	struct musb_host_data *host = dev_get_priv(dev);
	324	return _musb_submit_bulk_msg(host, udev, pipe, buffer, length);
	325	}
	326
	327	static int musb_submit_int_msg(struct udevice dev, struct usb_device udev,
	328	unsigned long pipe, void *buffer, int length,
	329	int interval)
	330	{
	331	struct musb_host_data *host = dev_get_priv(dev);
	332	return _musb_submit_int_msg(host, udev, pipe, buffer, length, interval);
	333	}
	334
	335	static struct int_queue musb_create_int_queue(struct udevice dev,
	336	struct usb_device *udev, unsigned long pipe, int queuesize,
	337	int elementsize, void *buffer, int interval)
	338	{
	339	struct musb_host_data *host = dev_get_priv(dev);
	340	return _musb_create_int_queue(host, udev, pipe, queuesize, elementsize,
	341	buffer, interval);
	342	}
	343
	344	static void musb_poll_int_queue(struct udevice dev, struct usb_device *udev,
	345	struct int_queue *queue)
	346	{
	347	struct musb_host_data *host = dev_get_priv(dev);
	348	return _musb_poll_int_queue(host, udev, queue);
	349	}
	350
	351	static int musb_destroy_int_queue(struct udevice dev, struct usb_device udev,
	352	struct int_queue *queue)
	353	{
	354	struct musb_host_data *host = dev_get_priv(dev);
	355	return _musb_destroy_int_queue(host, udev, queue);
	356	}
	357
	358	static int musb_reset_root_port(struct udevice dev, struct usb_device udev)
	359	{
	360	struct musb_host_data *host = dev_get_priv(dev);
	361	return _musb_reset_root_port(host, udev);
	362	}
	363
	364	struct dm_usb_ops musb_usb_ops = {
	365	.control = musb_submit_control_msg,
	366	.bulk = musb_submit_bulk_msg,
	367	.interrupt = musb_submit_int_msg,
	368	.create_int_queue = musb_create_int_queue,
	369	.poll_int_queue = musb_poll_int_queue,
	370	.destroy_int_queue = musb_destroy_int_queue,
	371	.reset_root_port = musb_reset_root_port,
	372	};
373	#endif /* CONFIG_DM_USB */
95de1e2f	374	#endif /* CONFIG_USB_MUSB_HOST */
eb81955b	375
95de1e2f	376	#ifdef CONFIG_USB_MUSB_GADGET
eb81955b IY	377	static struct musb *gadget;
eb81955b IY	378
2d48aa69	379	int usb_gadget_handle_interrupts(int index)
eb81955b	380	{
7a342785	381	WATCHDOG_RESET();
eb81955b IY	382	if (!gadget \|\| !gadget->isr)
	383	return -EINVAL;
	384
	385	return gadget->isr(0, gadget);
	386	}
	387
	388	int usb_gadget_register_driver(struct usb_gadget_driver *driver)
	389	{
	390	int ret;
	391
76b09b85	392	if (!driver \|\| driver->speed < USB_SPEED_FULL \|\| !driver->bind \|\|
eb81955b IY	393	!driver->setup) {
	394	printf("bad parameter.\n");
	395	return -EINVAL;
	396	}
	397
	398	if (!gadget) {
	399	printf("Controller uninitialized\n");
	400	return -ENXIO;
	401	}
	402
	403	ret = musb_gadget_start(&gadget->g, driver);
	404	if (ret < 0) {
	405	printf("gadget_start failed with %d\n", ret);
	406	return ret;
	407	}
	408
	409	ret = driver->bind(&gadget->g);
	410	if (ret < 0) {
	411	printf("bind failed with %d\n", ret);
	412	return ret;
	413	}
	414
	415	return 0;
	416	}
	417
	418	int usb_gadget_unregister_driver(struct usb_gadget_driver *driver)
	419	{
078d7302 RH	420	if (driver->disconnect)
	421	driver->disconnect(&gadget->g);
	422	if (driver->unbind)
	423	driver->unbind(&gadget->g);
eb81955b IY	424	return 0;
eb81955b IY	425	}
95de1e2f	426	#endif /* CONFIG_USB_MUSB_GADGET */
eb81955b IY	427
	428	int musb_register(struct musb_hdrc_platform_data plat, void bdata,
	429	void *ctl_regs)
	430	{
	431	struct musb **musbp;
	432
	433	switch (plat->mode) {
95de1e2f	434	#if defined(CONFIG_USB_MUSB_HOST) && !defined(CONFIG_DM_USB)
eb81955b	435	case MUSB_HOST:
fc85d39e	436	musbp = &musb_host.host;
eb81955b IY	437	break;
eb81955b IY	438	#endif
95de1e2f	439	#ifdef CONFIG_USB_MUSB_GADGET
eb81955b IY	440	case MUSB_PERIPHERAL:
	441	musbp = &gadget;
	442	break;
	443	#endif
	444	default:
	445	return -EINVAL;
	446	}
	447
	448	musbp = musb_init_controller(plat, (struct device )bdata, ctl_regs);
	449	if (!musbp) {
	450	printf("Failed to init the controller\n");
	451	return -EIO;
	452	}
	453
	454	return 0;
	455	}