1 files changed, 418 insertions, 0 deletions

diff --git a/target/linux/lantiq/files/drivers/usb/ifxhcd/ifxhcd_queue.c b/target/linux/lantiq/files/drivers/usb/ifxhcd/ifxhcd_queue.c
new file mode 100644
index 000000000..8f9dd2574
--- /dev/null
+++ b/target/linux/lantiq/files/drivers/usb/ifxhcd/ifxhcd_queue.c
@@ -0,0 +1,418 @@
+/*****************************************************************************
+ **   FILE NAME       : ifxhcd_queue.c
+ **   PROJECT         : IFX USB sub-system V3
+ **   MODULES         : IFX USB sub-system Host and Device driver
+ **   SRC VERSION     : 1.0
+ **   DATE            : 1/Jan/2009
+ **   AUTHOR          : Chen, Howard
+ **   DESCRIPTION     : This file contains the functions to manage Queue Heads and Queue
+ **                     Transfer Descriptors.
+ *****************************************************************************/
+
+/*!
+ \file ifxhcd_queue.c
+ \ingroup IFXUSB_DRIVER_V3
+  \brief This file contains the functions to manage Queue Heads and Queue
+  Transfer Descriptors.
+*/
+#include <linux/version.h>
+#include "ifxusb_version.h"
+
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/moduleparam.h>
+#include <linux/init.h>
+#include <linux/device.h>
+#include <linux/errno.h>
+#include <linux/list.h>
+#include <linux/interrupt.h>
+#include <linux/string.h>
+
+#include "ifxusb_plat.h"
+#include "ifxusb_regs.h"
+#include "ifxusb_cif.h"
+#include "ifxhcd.h"
+
+#ifdef __EPQD_DESTROY_TIMEOUT__
+	#define epqh_self_destroy_timeout 5
+	static void eqph_destroy_func(unsigned long _ptr)
+	{
+		ifxhcd_epqh_t *epqh=(ifxhcd_epqh_t *)_ptr;
+		if(epqh)
+		{
+			ifxhcd_epqh_free (epqh);
+		}
+	}
+#endif
+
+#define SCHEDULE_SLOP 10
+
+/*!
+  \brief This function allocates and initializes a EPQH.
+
+  \param _ifxhcd The HCD state structure for the USB Host controller.
+  \param[in] _urb Holds the information about the device/endpoint that we need
+  to initialize the EPQH.
+
+  \return Returns pointer to the newly allocated EPQH, or NULL on error.
+ */
+ifxhcd_epqh_t *ifxhcd_epqh_create (ifxhcd_hcd_t *_ifxhcd, struct urb *_urb)
+{
+	ifxhcd_epqh_t *epqh;
+
+	hprt0_data_t   hprt0;
+	struct usb_host_endpoint *sysep = ifxhcd_urb_to_endpoint(_urb);
+
+	/* Allocate memory */
+//	epqh=(ifxhcd_epqh_t *) kmalloc (sizeof(ifxhcd_epqh_t), GFP_KERNEL);
+	epqh=(ifxhcd_epqh_t *) kmalloc (sizeof(ifxhcd_epqh_t), GFP_ATOMIC);
+
+	if(epqh == NULL)
+		return NULL;
+
+	memset (epqh, 0, sizeof (ifxhcd_epqh_t));
+
+	epqh->sysep=sysep;
+
+	/* Initialize EPQH */
+	switch (usb_pipetype(_urb->pipe))
+	{
+		case PIPE_CONTROL    : epqh->ep_type = IFXUSB_EP_TYPE_CTRL; break;
+		case PIPE_BULK       : epqh->ep_type = IFXUSB_EP_TYPE_BULK; break;
+		case PIPE_ISOCHRONOUS: epqh->ep_type = IFXUSB_EP_TYPE_ISOC; break;
+		case PIPE_INTERRUPT  : epqh->ep_type = IFXUSB_EP_TYPE_INTR; break;
+	}
+
+	//epqh->data_toggle = IFXUSB_HC_PID_DATA0;
+
+	epqh->mps = usb_maxpacket(_urb->dev, _urb->pipe, !(usb_pipein(_urb->pipe)));
+
+	hprt0.d32 = ifxusb_read_hprt0 (&_ifxhcd->core_if);
+
+	INIT_LIST_HEAD(&epqh->urbd_list);
+	INIT_LIST_HEAD(&epqh->epqh_list_entry);
+	epqh->hc = NULL;
+
+	epqh->dump_buf = ifxusb_alloc_buf(epqh->mps, 0);
+
+	/* FS/LS Enpoint on HS Hub
+	 * NOT virtual root hub */
+	epqh->need_split = 0;
+	epqh->pkt_count_limit=0;
+	if(epqh->ep_type == IFXUSB_EP_TYPE_BULK && !(usb_pipein(_urb->pipe)) )
+		epqh->pkt_count_limit=4;
+	if (hprt0.b.prtspd == IFXUSB_HPRT0_PRTSPD_HIGH_SPEED &&
+	    ((_urb->dev->speed == USB_SPEED_LOW) ||
+	     (_urb->dev->speed == USB_SPEED_FULL)) &&
+	     (_urb->dev->tt) && (_urb->dev->tt->hub->devnum != 1))
+	{
+		IFX_DEBUGPL(DBG_HCD, "QH init: EP %d: TT found at hub addr %d, for port %d\n",
+		       usb_pipeendpoint(_urb->pipe), _urb->dev->tt->hub->devnum,
+		       _urb->dev->ttport);
+		epqh->need_split = 1;
+		epqh->pkt_count_limit=1;
+	}
+
+	if (epqh->ep_type == IFXUSB_EP_TYPE_INTR ||
+	    epqh->ep_type == IFXUSB_EP_TYPE_ISOC)
+	{
+		/* Compute scheduling parameters once and save them. */
+		epqh->interval    = _urb->interval;
+		if(epqh->need_split)
+			epqh->interval *= 8;
+	}
+
+	epqh->period_counter=0;
+	epqh->is_active=0;
+
+	#ifdef __EPQD_DESTROY_TIMEOUT__
+		/* Start a timer for this transfer. */
+		init_timer(&epqh->destroy_timer);
+		epqh->destroy_timer.function = eqph_destroy_func;
+		epqh->destroy_timer.data = (unsigned long)(epqh);
+	#endif
+
+	#ifdef __DEBUG__
+		IFX_DEBUGPL(DBG_HCD , "IFXUSB HCD EPQH Initialized\n");
+		IFX_DEBUGPL(DBG_HCDV, "IFXUSB HCD EPQH  - epqh = %p\n", epqh);
+		IFX_DEBUGPL(DBG_HCDV, "IFXUSB HCD EPQH  - Device Address = %d EP %d, %s\n",
+			    _urb->dev->devnum,
+			    usb_pipeendpoint(_urb->pipe),
+			    usb_pipein(_urb->pipe) == USB_DIR_IN ? "IN" : "OUT");
+		IFX_DEBUGPL(DBG_HCDV, "IFXUSB HCD EPQH  - Speed = %s\n",
+			    ({ char *speed; switch (_urb->dev->speed) {
+			    case USB_SPEED_LOW: speed  = "low" ; break;
+			    case USB_SPEED_FULL: speed = "full"; break;
+			    case USB_SPEED_HIGH: speed = "high"; break;
+			    default: speed = "?";	break;
+			    }; speed;}));
+		IFX_DEBUGPL(DBG_HCDV, "IFXUSB HCD EPQH  - Type = %s\n",
+			({
+				char *type; switch (epqh->ep_type)
+				{
+				    case IFXUSB_EP_TYPE_ISOC: type = "isochronous"; break;
+				    case IFXUSB_EP_TYPE_INTR: type = "interrupt"  ; break;
+				    case IFXUSB_EP_TYPE_CTRL: type = "control"    ; break;
+				    case IFXUSB_EP_TYPE_BULK: type = "bulk"       ; break;
+				    default: type = "?";	break;
+				};
+				type;
+			}));
+		if (epqh->ep_type == IFXUSB_EP_TYPE_INTR)
+			IFX_DEBUGPL(DBG_HCDV, "IFXUSB HCD EPQH - interval = %d\n", epqh->interval);
+	#endif
+
+	return epqh;
+}
+
+
+
+
+
+
+/*!
+  \brief Free the EPQH.  EPQH should already be removed from a list.
+  URBD list should already be empty if called from URB Dequeue.
+
+  \param[in] _epqh The EPQH to free.
+ */
+void ifxhcd_epqh_free (ifxhcd_epqh_t *_epqh)
+{
+	unsigned long     flags;
+
+	if(_epqh->sysep) _epqh->sysep->hcpriv=NULL;
+	_epqh->sysep=NULL;
+
+	if(!_epqh)
+		return;
+
+	/* Free each QTD in the QTD list */
+	local_irq_save (flags);
+	if (!list_empty(&_epqh->urbd_list))
+		IFX_WARN("%s() invalid epqh state\n",__func__);
+
+	#if defined(__UNALIGNED_BUFFER_ADJ__)
+		if(_epqh->aligned_buf)
+			ifxusb_free_buf(_epqh->aligned_buf);
+		if(_epqh->aligned_setup)
+			ifxusb_free_buf(_epqh->aligned_setup);
+	#endif
+
+	if (!list_empty(&_epqh->epqh_list_entry))
+		list_del_init(&_epqh->epqh_list_entry);
+
+	#ifdef __EPQD_DESTROY_TIMEOUT__
+		del_timer(&_epqh->destroy_timer);
+	#endif
+	if(_epqh->dump_buf)
+		ifxusb_free_buf(_epqh->dump_buf);
+	_epqh->dump_buf=0;
+
+
+	kfree (_epqh);
+	local_irq_restore (flags);
+}
+
+/*!
+  \brief This function adds a EPQH to
+
+  \return 0 if successful, negative error code otherwise.
+ */
+void ifxhcd_epqh_ready(ifxhcd_hcd_t *_ifxhcd, ifxhcd_epqh_t *_epqh)
+{
+	unsigned long flags;
+	local_irq_save(flags);
+	if (list_empty(&_epqh->epqh_list_entry))
+	{
+		#ifdef __EN_ISOC__
+		if     (_epqh->ep_type == IFXUSB_EP_TYPE_ISOC)
+			list_add_tail(&_epqh->epqh_list_entry, &_ifxhcd->epqh_isoc_ready);
+		else
+		#endif
+		if(_epqh->ep_type == IFXUSB_EP_TYPE_INTR)
+			list_add_tail(&_epqh->epqh_list_entry, &_ifxhcd->epqh_intr_ready);
+		else
+			list_add_tail(&_epqh->epqh_list_entry, &_ifxhcd->epqh_np_ready);
+		_epqh->is_active=0;
+	}
+	else if(!_epqh->is_active)
+	{
+		#ifdef __EN_ISOC__
+		if     (_epqh->ep_type == IFXUSB_EP_TYPE_ISOC)
+			list_move_tail(&_epqh->epqh_list_entry, &_ifxhcd->epqh_isoc_ready);
+		else
+		#endif
+		if(_epqh->ep_type == IFXUSB_EP_TYPE_INTR)
+			list_move_tail(&_epqh->epqh_list_entry, &_ifxhcd->epqh_intr_ready);
+		else
+			list_move_tail(&_epqh->epqh_list_entry, &_ifxhcd->epqh_np_ready);
+	}
+	#ifdef __EPQD_DESTROY_TIMEOUT__
+		del_timer(&_epqh->destroy_timer);
+	#endif
+	local_irq_restore(flags);
+}
+
+void ifxhcd_epqh_active(ifxhcd_hcd_t *_ifxhcd, ifxhcd_epqh_t *_epqh)
+{
+	unsigned long flags;
+	local_irq_save(flags);
+	if (list_empty(&_epqh->epqh_list_entry))
+		IFX_WARN("%s() invalid epqh state\n",__func__);
+	#ifdef __EN_ISOC__
+		if     (_epqh->ep_type == IFXUSB_EP_TYPE_ISOC)
+			list_move_tail(&_epqh->epqh_list_entry, &_ifxhcd->epqh_isoc_active);
+		else
+	#endif
+	if(_epqh->ep_type == IFXUSB_EP_TYPE_INTR)
+		list_move_tail(&_epqh->epqh_list_entry, &_ifxhcd->epqh_intr_active);
+	else
+		list_move_tail(&_epqh->epqh_list_entry, &_ifxhcd->epqh_np_active);
+	_epqh->is_active=1;
+	#ifdef __EPQD_DESTROY_TIMEOUT__
+		del_timer(&_epqh->destroy_timer);
+	#endif
+	local_irq_restore(flags);
+}
+
+void ifxhcd_epqh_idle(ifxhcd_hcd_t *_ifxhcd, ifxhcd_epqh_t *_epqh)
+{
+	unsigned long flags;
+	local_irq_save(flags);
+
+	if (list_empty(&_epqh->urbd_list))
+	{
+		if(_epqh->ep_type == IFXUSB_EP_TYPE_ISOC || _epqh->ep_type == IFXUSB_EP_TYPE_INTR)
+		{
+			list_move_tail(&_epqh->epqh_list_entry, &_ifxhcd->epqh_stdby);
+		}
+		else
+		{
+			list_del_init(&_epqh->epqh_list_entry);
+			#ifdef __EPQD_DESTROY_TIMEOUT__
+				del_timer(&_epqh->destroy_timer);
+				_epqh->destroy_timer.expires = jiffies + (HZ*epqh_self_destroy_timeout);
+				add_timer(&_epqh->destroy_timer );
+			#endif
+		}
+	}
+	else
+	{
+		#ifdef __EN_ISOC__
+		if     (_epqh->ep_type == IFXUSB_EP_TYPE_ISOC)
+			list_move_tail(&_epqh->epqh_list_entry, &_ifxhcd->epqh_isoc_ready);
+		else
+		#endif
+		if(_epqh->ep_type == IFXUSB_EP_TYPE_INTR)
+			list_move_tail(&_epqh->epqh_list_entry, &_ifxhcd->epqh_intr_ready);
+		else
+			list_move_tail(&_epqh->epqh_list_entry, &_ifxhcd->epqh_np_ready);
+	}
+	_epqh->is_active=0;
+	local_irq_restore(flags);
+}
+
+
+void ifxhcd_epqh_idle_periodic(ifxhcd_epqh_t *_epqh)
+{
+	unsigned long flags;
+	if(_epqh->ep_type != IFXUSB_EP_TYPE_ISOC && _epqh->ep_type != IFXUSB_EP_TYPE_INTR)
+		return;
+
+	local_irq_save(flags);
+
+	if (list_empty(&_epqh->epqh_list_entry))
+		IFX_WARN("%s() invalid epqh state\n",__func__);
+	if (!list_empty(&_epqh->urbd_list))
+		IFX_WARN("%s() invalid epqh state(not empty)\n",__func__);
+
+	_epqh->is_active=0;
+	list_del_init(&_epqh->epqh_list_entry);
+	#ifdef __EPQD_DESTROY_TIMEOUT__
+		del_timer(&_epqh->destroy_timer);
+		_epqh->destroy_timer.expires = jiffies + (HZ*epqh_self_destroy_timeout);
+		add_timer(&_epqh->destroy_timer );
+	#endif
+
+	local_irq_restore(flags);
+}
+
+
+int ifxhcd_urbd_create (ifxhcd_hcd_t *_ifxhcd,struct urb *_urb)
+{
+	ifxhcd_urbd_t            *urbd;
+	struct usb_host_endpoint *sysep;
+	ifxhcd_epqh_t            *epqh;
+	unsigned long             flags;
+	/* == AVM/WK 20100714 retval correctly initialized ==*/
+	int                       retval = -ENOMEM;
+
+	/*== AVM/BC 20100630 - Spinlock ==*/
+	//local_irq_save(flags);
+	SPIN_LOCK_IRQSAVE(&_ifxhcd->lock, flags);
+
+//		urbd =  (ifxhcd_urbd_t *) kmalloc (sizeof(ifxhcd_urbd_t), GFP_KERNEL);
+	urbd =  (ifxhcd_urbd_t *) kmalloc (sizeof(ifxhcd_urbd_t), GFP_ATOMIC);
+	if (urbd != NULL) /* Initializes a QTD structure.*/
+	{
+		retval = 0;
+		memset (urbd, 0, sizeof (ifxhcd_urbd_t));
+
+		sysep = ifxhcd_urb_to_endpoint(_urb);
+		epqh = (ifxhcd_epqh_t *)sysep->hcpriv;
+		if (epqh == NULL)
+		{
+			epqh = ifxhcd_epqh_create (_ifxhcd, _urb);
+			if (epqh == NULL)
+			{
+				retval = -ENOSPC;
+				kfree(urbd);
+				//local_irq_restore (flags);
+				SPIN_UNLOCK_IRQRESTORE(&_ifxhcd->lock, flags);
+				return retval;
+			}
+			sysep->hcpriv = epqh;
+		}
+
+		INIT_LIST_HEAD(&urbd->urbd_list_entry);
+
+		/*== AVM/BC 20100630 - 2.6.28 needs HCD link/unlink URBs ==*/
+		retval = usb_hcd_link_urb_to_ep(ifxhcd_to_syshcd(_ifxhcd), _urb);
+
+		if (unlikely(retval)){
+			kfree(urbd);
+			kfree(epqh);
+			SPIN_UNLOCK_IRQRESTORE(&_ifxhcd->lock, flags);
+			return retval;
+		}
+
+		list_add_tail(&urbd->urbd_list_entry, &epqh->urbd_list);
+		urbd->urb = _urb;
+		_urb->hcpriv = urbd;
+
+		urbd->epqh=epqh;
+		urbd->is_in=usb_pipein(_urb->pipe) ? 1 : 0;;
+
+		urbd->xfer_len=_urb->transfer_buffer_length;
+#define URB_NO_SETUP_DMA_MAP 0
+
+		if(urbd->xfer_len>0)
+		{
+			if(_urb->transfer_flags && URB_NO_TRANSFER_DMA_MAP)
+				urbd->xfer_buff = (uint8_t *) (KSEG1ADDR((uint32_t *)_urb->transfer_dma));
+			else
+				urbd->xfer_buff = (uint8_t *) _urb->transfer_buffer;
+		}
+		if(epqh->ep_type == IFXUSB_EP_TYPE_CTRL)
+		{
+			if(_urb->transfer_flags && URB_NO_SETUP_DMA_MAP)
+				urbd->setup_buff = (uint8_t *) (KSEG1ADDR((uint32_t *)_urb->setup_dma));
+			else
+				urbd->setup_buff = (uint8_t *) _urb->setup_packet;
+		}
+	}
+	//local_irq_restore (flags);
+	SPIN_UNLOCK_IRQRESTORE(&_ifxhcd->lock, flags);
+	return retval;
+}
+