summaryrefslogtreecommitdiff
path: root/package/kernel/lantiq/ltq-hcd/src/ifxhcd.c
diff options
context:
space:
mode:
Diffstat (limited to 'package/kernel/lantiq/ltq-hcd/src/ifxhcd.c')
-rw-r--r--package/kernel/lantiq/ltq-hcd/src/ifxhcd.c2141
1 files changed, 2141 insertions, 0 deletions
diff --git a/package/kernel/lantiq/ltq-hcd/src/ifxhcd.c b/package/kernel/lantiq/ltq-hcd/src/ifxhcd.c
new file mode 100644
index 0000000..be0a91d
--- /dev/null
+++ b/package/kernel/lantiq/ltq-hcd/src/ifxhcd.c
@@ -0,0 +1,2141 @@
+/*****************************************************************************
+ ** FILE NAME : ifxhcd.c
+ ** PROJECT : IFX USB sub-system V3
+ ** MODULES : IFX USB sub-system Host and Device driver
+ ** SRC VERSION : 3.2
+ ** DATE : 1/Jan/2011
+ ** AUTHOR : Chen, Howard
+ ** DESCRIPTION : This file contains the structures, constants, and
+ ** interfaces for the Host Contoller Driver (HCD).
+ **
+ ** The Host Controller Driver (HCD) is responsible for
+ ** translating requests from the USB Driver into the
+ ** appropriate actions on the IFXUSB controller.
+ ** It isolates the USBD from the specifics of the
+ ** controller by providing an API to the USBD.
+ ** FUNCTIONS :
+ ** COMPILER : gcc
+ ** REFERENCE : Synopsys DWC-OTG Driver 2.7
+ ** COPYRIGHT : Copyright (c) 2010
+ ** LANTIQ DEUTSCHLAND GMBH,
+ ** Am Campeon 3, 85579 Neubiberg, Germany
+ **
+ ** 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; either version 2 of the License, or
+ ** (at your option) any later version.
+ **
+ ** Version Control Section **
+ ** $Author$
+ ** $Date$
+ ** $Revisions$
+ ** $Log$ Revision history
+ *****************************************************************************/
+
+/*
+ * This file contains code fragments from Synopsys HS OTG Linux Software Driver.
+ * For this code the following notice is applicable:
+ *
+ * ==========================================================================
+ *
+ * Synopsys HS OTG Linux Software Driver and documentation (hereinafter,
+ * "Software") is an Unsupported proprietary work of Synopsys, Inc. unless
+ * otherwise expressly agreed to in writing between Synopsys and you.
+ *
+ * The Software IS NOT an item of Licensed Software or Licensed Product under
+ * any End User Software License Agreement or Agreement for Licensed Product
+ * with Synopsys or any supplement thereto. You are permitted to use and
+ * redistribute this Software in source and binary forms, with or without
+ * modification, provided that redistributions of source code must retain this
+ * notice. You may not view, use, disclose, copy or distribute this file or
+ * any information contained herein except pursuant to this license grant from
+ * Synopsys. If you do not agree with this notice, including the disclaimer
+ * below, then you are not authorized to use the Software.
+ *
+ * THIS SOFTWARE IS BEING DISTRIBUTED BY SYNOPSYS SOLELY ON AN "AS IS" BASIS
+ * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE HEREBY DISCLAIMED. IN NO EVENT SHALL SYNOPSYS BE LIABLE FOR ANY DIRECT,
+ * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+ * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
+ * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
+ * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH
+ * DAMAGE.
+ * ========================================================================== */
+
+/*!
+ \file ifxhcd.c
+ \ingroup IFXUSB_DRIVER_V3
+ \brief This file contains the implementation of the HCD. In Linux,
+ the HCD implements the hc_driver API.
+*/
+
+#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 <linux/dma-mapping.h>
+
+
+#include "ifxusb_plat.h"
+#include "ifxusb_regs.h"
+#include "ifxusb_cif.h"
+#include "ifxhcd.h"
+
+#include <asm/irq.h>
+
+#ifdef __DEBUG__
+ static void dump_urb_info(struct urb *_urb, char* _fn_name);
+#if 0
+ static void dump_channel_info(ifxhcd_hcd_t *_ifxhcd,
+ ifxhcd_epqh_t *_epqh);
+#endif
+#endif
+
+static void ifxhcd_complete_urb_sub(ifxhcd_urbd_t *_urbd)
+{
+ ifxhcd_hcd_t *ifxhcd;
+ struct urb *urb=NULL;
+
+ if (!list_empty(&_urbd->ql))
+ {
+ list_del_init(&_urbd->ql);
+ _urbd->epqh->urbd_count--;
+ }
+ else
+ IFX_ERROR("%s: urb(%p) not connect to any epqh\n",
+ __func__,_urbd);
+
+ ifxhcd=_urbd->epqh->ifxhcd;
+ urb =_urbd->urb;
+ if(!urb)
+ IFX_ERROR("%s: invalid urb\n",__func__);
+ else if(urb->hcpriv)
+ {
+ if(urb->hcpriv != _urbd)
+ IFX_ERROR("%s: invalid"
+ " urb(%p)->hcpriv(%p) != _urbd(%p)\n",
+ __func__,
+ urb,
+ urb->hcpriv,
+ _urbd);
+ #if defined(__UNALIGNED_BUF_ADJ__)
+ if(_urbd->is_in &&
+// _urbd->using_aligned_buf &&
+ _urbd->aligned_buf)
+ memcpy(_urbd->xfer_buff,
+ _urbd->aligned_buf,
+ _urbd->xfer_len);
+ if(_urbd->aligned_buf)
+ ifxusb_free_buf_h(_urbd->aligned_buf);
+ #endif
+ urb->hcpriv = NULL;
+ #if LINUX_VERSION_CODE < KERNEL_VERSION(2,6,32)
+ urb->status=_urbd->status;
+ usb_hcd_giveback_urb(ifxhcd_to_syshcd(ifxhcd), urb);
+ #else
+ usb_hcd_giveback_urb(ifxhcd_to_syshcd(ifxhcd), urb,
+ _urbd->status);
+ #endif
+ }
+ kfree(_urbd);
+}
+
+#ifdef __STRICT_ORDER__
+ static void ifxhcd_complete_urb_func(unsigned long data)
+ {
+ unsigned long flags;
+ ifxhcd_urbd_t *urbd;
+ ifxhcd_epqh_t *epqh;
+ struct list_head *item;
+
+ int count=10;
+
+ epqh=((ifxhcd_epqh_t *)data);
+
+ while (!list_empty(&epqh->release_list) && count)
+ {
+ item = epqh->release_list.next;
+ urbd = list_entry(item, ifxhcd_urbd_t, ql);
+ if (!urbd)
+ IFX_ERROR("%s: invalid urbd\n",__func__);
+ else if (!urbd->epqh)
+ IFX_ERROR("%s: invalid epqd\n",__func__);
+ else
+ {
+ ifxhcd_epqh_t *epqh2;
+ epqh2=urbd->epqh;
+ local_irq_save(flags);
+ LOCK_URBD_LIST(epqh2);
+ ifxhcd_complete_urb_sub(urbd);
+ UNLOCK_URBD_LIST(epqh2);
+ local_irq_restore (flags);
+ }
+ count--;
+ }
+ if(!list_empty(&epqh->release_list))
+ tasklet_schedule(&epqh->complete_urb_sub);
+ }
+
+ /*!
+ \brief Sets the final status of an URB and returns it to the device
+ driver. Any required cleanup of the URB is performed.
+ */
+ void ifxhcd_complete_urb(ifxhcd_hcd_t *_ifxhcd,
+ ifxhcd_urbd_t *_urbd,
+ int _status)
+ {
+ unsigned long flags;
+
+ if(!_urbd)
+ {
+ IFX_ERROR("%s: invalid urbd\n",__func__);
+ return;
+ }
+ if (!_urbd->epqh)
+ {
+ IFX_ERROR("%s: invalid epqh\n",__func__);
+ return;
+ }
+
+ local_irq_save(flags);
+ LOCK_URBD_LIST(_urbd->epqh);
+ #ifdef __DEBUG__
+ if (CHK_DEBUG_LEVEL(DBG_HCDV | DBG_HCD_URB))
+ {
+ IFX_PRINT("%s: ehqh %p _urbd %p, urb %p,"
+ " device %d, ep %d %s/%s, status=%d\n",
+ __func__,_urbd->epqh,
+ _urbd,_urbd->urb,
+ (_urbd->urb)?usb_pipedevice(_urbd->urb->pipe):-1,
+ (_urbd->urb)?usb_pipeendpoint(_urbd->urb->pipe):-1,
+ (_urbd->urb)?(usb_pipein(_urbd->urb->pipe) ? "IN" : "OUT"):"--",
+ (_urbd->is_in) ? "IN" : "OUT",
+ _status);
+ if ((_urbd->urb)&& _urbd->epqh->ep_type == IFXUSB_EP_TYPE_ISOC)
+ {
+ int i;
+ for (i = 0; i < _urbd->urb->number_of_packets; i++)
+ IFX_PRINT(" ISO Desc %d status: %d\n", i, _urbd->urb->iso_frame_desc[i].status);
+ }
+ }
+ #endif
+ _urbd->status = _status;
+
+ if(_urbd->phase!=URBD_FINISHING)
+ {
+ if(_urbd->phase!=URBD_DEQUEUEING && _urbd->phase!=URBD_COMPLETING)
+ printk(KERN_INFO "Warning: %s() Strange URBD PHASE %d\n",__func__,_urbd->phase);
+ if(_urbd->urb)
+ {
+ if( _urbd->status == 0
+ && _urbd->phase==URBD_COMPLETING
+ && in_irq())
+ {
+ list_move_tail(&_urbd->ql,&_urbd->epqh->release_list);
+ if(!_urbd->epqh->complete_urb_sub.func)
+ {
+ _urbd->epqh->complete_urb_sub.next = NULL;
+ _urbd->epqh->complete_urb_sub.state = 0;
+ atomic_set( &_urbd->epqh->complete_urb_sub.count, 0);
+ _urbd->epqh->complete_urb_sub.func = ifxhcd_complete_urb_func;
+ _urbd->epqh->complete_urb_sub.data = (unsigned long)_urbd->epqh;
+ }
+ tasklet_schedule(&_urbd->epqh->complete_urb_sub);
+ }
+ else
+ {
+ _urbd->phase=URBD_FINISHING;
+ ifxhcd_complete_urb_sub(_urbd);
+ }
+ UNLOCK_URBD_LIST(_urbd->epqh);
+ }
+ else
+ {
+ UNLOCK_URBD_LIST(_urbd->epqh);
+ kfree(_urbd);
+ }
+ }
+ else
+ {
+ printk(KERN_INFO "Warning: %s() Double Completing \n",__func__);
+ UNLOCK_URBD_LIST(_urbd->epqh);
+ }
+
+ local_irq_restore (flags);
+ }
+#else
+ static void ifxhcd_complete_urb_func(unsigned long data)
+ {
+ unsigned long flags;
+ ifxhcd_urbd_t *urbd;
+
+ urbd=((ifxhcd_urbd_t *)data);
+
+ // local_irq_save(flags);
+ if (!urbd)
+ IFX_ERROR("%s: invalid urbd\n",__func__);
+ else if (!urbd->epqh)
+ IFX_ERROR("%s: invalid epqd\n",__func__);
+ else
+ {
+ local_irq_save(flags);
+ LOCK_URBD_LIST(urbd->epqh);
+ ifxhcd_complete_urb_sub(urbd);
+ UNLOCK_URBD_LIST(urbd->epqh);
+ local_irq_restore (flags);
+ }
+ // local_irq_restore (flags);
+ }
+
+
+ /*!
+ \brief Sets the final status of an URB and returns it to the device driver. Any
+ required cleanup of the URB is performed.
+ */
+ void ifxhcd_complete_urb(ifxhcd_hcd_t *_ifxhcd, ifxhcd_urbd_t *_urbd, int _status)
+ {
+ unsigned long flags;
+
+ if(!_urbd)
+ {
+ IFX_ERROR("%s: invalid urbd\n",__func__);
+ return;
+ }
+ if (!_urbd->epqh)
+ {
+ IFX_ERROR("%s: invalid epqh\n",__func__);
+ return;
+ }
+
+ local_irq_save(flags);
+ LOCK_URBD_LIST(_urbd->epqh);
+ #ifdef __DEBUG__
+ if (CHK_DEBUG_LEVEL(DBG_HCDV | DBG_HCD_URB))
+ {
+ IFX_PRINT("%s: ehqh %p _urbd %p, urb %p, device %d, ep %d %s/%s, status=%d\n",
+ __func__,_urbd->epqh, _urbd,_urbd->urb,
+ (_urbd->urb)?usb_pipedevice(_urbd->urb->pipe):-1,
+ (_urbd->urb)?usb_pipeendpoint(_urbd->urb->pipe):-1,
+ (_urbd->urb)?(usb_pipein(_urbd->urb->pipe) ? "IN" : "OUT"):"--",
+ (_urbd->is_in) ? "IN" : "OUT",
+ _status);
+ if ((_urbd->urb)&& _urbd->epqh->ep_type == IFXUSB_EP_TYPE_ISOC)
+ {
+ int i;
+ for (i = 0; i < _urbd->urb->number_of_packets; i++)
+ IFX_PRINT(" ISO Desc %d status: %d\n", i, _urbd->urb->iso_frame_desc[i].status);
+ }
+ }
+ #endif
+ _urbd->status = _status;
+
+ if(_urbd->phase!=URBD_FINISHING)
+ {
+ if(_urbd->phase!=URBD_DEQUEUEING && _urbd->phase!=URBD_COMPLETING)
+ printk(KERN_INFO "Warning: %s() Strange URBD PHASE %d\n",__func__,_urbd->phase);
+ if(_urbd->urb)
+ {
+ if( _urbd->status == 0
+ && _urbd->phase==URBD_COMPLETING
+ && in_irq())
+ {
+ if(_urbd->complete_urb_sub.func)
+ printk(KERN_INFO "Warning: %s() URBD Tasklet is on already\n",__func__);
+ _urbd->phase=URBD_FINISHING;
+ _urbd->complete_urb_sub.next = NULL;
+ _urbd->complete_urb_sub.state = 0;
+ atomic_set( &_urbd->complete_urb_sub.count, 0);
+ _urbd->complete_urb_sub.func = ifxhcd_complete_urb_func;
+ _urbd->complete_urb_sub.data = (unsigned long)_urbd;
+ tasklet_schedule(&_urbd->complete_urb_sub);
+ }
+ else
+ {
+ _urbd->phase=URBD_FINISHING;
+ ifxhcd_complete_urb_sub(_urbd);
+ }
+ }
+ else
+ kfree(_urbd);
+ }
+ else
+ printk(KERN_INFO "Warning: %s() Double Completing \n",__func__);
+ UNLOCK_URBD_LIST(_urbd->epqh);
+ local_irq_restore (flags);
+ }
+#endif
+
+/*!
+ \brief Processes all the URBs in a single EPQHs. Completes them with
+ status and frees the URBD.
+ */
+static
+void kill_all_urbs_in_epqh(ifxhcd_hcd_t *_ifxhcd, ifxhcd_epqh_t *_epqh, int _status)
+{
+ struct list_head *item;
+ struct list_head *next;
+ ifxhcd_urbd_t *urbd;
+
+ if(!_epqh)
+ return;
+
+ IFX_DEBUGPL(DBG_HCDV, "%s %p\n",__func__,_epqh);
+ LOCK_URBD_LIST(_epqh);
+ list_for_each(item, &_epqh->urbd_list)
+ {
+ urbd = list_entry(item, ifxhcd_urbd_t, ql);
+ if( urbd->phase==URBD_IDLE
+ || urbd->phase==URBD_ACTIVE
+// || urbd->phase==URBD_STARTING
+ )
+ urbd->phase=URBD_DEQUEUEING;
+ }
+ list_for_each_safe(item, next, &_epqh->urbd_list)
+ {
+ urbd = list_entry(item, ifxhcd_urbd_t, ql);
+ if(urbd->phase==URBD_DEQUEUEING)
+ {
+ urbd->urb->status = _status;
+ urbd->phase = URBD_FINISHING;
+ ifxhcd_complete_urb_sub(urbd);
+ }
+ else if( urbd->phase==URBD_STARTED
+ || urbd->phase==URBD_STARTING
+// || urbd->phase==URBD_ACTIVE
+ )
+ {
+ if(ifxhcd_hc_halt(&_ifxhcd->core_if, _epqh->hc, HC_XFER_URB_DEQUEUE))
+ {
+ urbd->urb->status = _status;
+ urbd->phase=URBD_FINISHING;
+ ifxhcd_complete_urb_sub(urbd);
+ }
+ }
+ else
+ IFX_ERROR("%s: invalid urb phase:%d \n",__func__,urbd->phase);
+ }
+ UNLOCK_URBD_LIST(_epqh);
+ IFX_DEBUGPL(DBG_HCDV, "%s %p finish\n",__func__,_epqh);
+}
+
+
+/*!
+ \brief Free all EPS in one Processes all the URBs in a single list of EPQHs. Completes them with
+ -ETIMEDOUT and frees the URBD.
+ */
+static
+void epqh_list_free_1(ifxhcd_hcd_t *_ifxhcd, struct list_head *_epqh_list)
+{
+ ifxhcd_epqh_t *epqh;
+ struct list_head *item;
+ if (!_ifxhcd)
+ return;
+ if (!_epqh_list)
+ return;
+
+ IFX_DEBUGPL(DBG_HCDV, "%s %p\n",__func__,_epqh_list);
+
+ item = _epqh_list->next;
+ while(item != _epqh_list && item != item->next)
+ {
+ epqh = list_entry(item, ifxhcd_epqh_t, ql);
+ epqh->phase=EPQH_DISABLING;
+ item = item->next;
+ kill_all_urbs_in_epqh(_ifxhcd, epqh, -ETIMEDOUT);
+ #ifdef __STRICT_ORDER__
+ if(list_empty(&epqh->urbd_list) && list_empty(&epqh->release_list))
+ #else
+ if(list_empty(&epqh->urbd_list))
+ #endif
+ ifxhcd_epqh_free(epqh);
+ }
+ IFX_DEBUGPL(DBG_HCDV, "%s %p finish\n",__func__,_epqh_list);
+ /* Ensure there are no URBDs or URBs left. */
+}
+
+static
+void epqh_list_free_2(ifxhcd_hcd_t *_ifxhcd, struct list_head *_epqh_list)
+{
+ ifxhcd_epqh_t *epqh;
+ struct list_head *item;
+ struct list_head *next;
+ if (!_ifxhcd)
+ return;
+ if (!_epqh_list)
+ return;
+
+ IFX_DEBUGPL(DBG_HCDV, "%s %p\n",__func__,_epqh_list);
+ list_for_each_safe(item, next, _epqh_list)
+ {
+ epqh = list_entry(item, ifxhcd_epqh_t, ql);
+ if(item == item->next)
+ {
+ ifxhcd_epqh_free(epqh);
+ }
+ else
+ {
+ uint32_t count=0x80000;
+ #ifdef __STRICT_ORDER__
+ for(;(!list_empty(&epqh->urbd_list) || !list_empty(&epqh->release_list))&& count> 0; count--) udelay(1);
+ #else
+ for(;!list_empty(&epqh->urbd_list) && count> 0; count--) udelay(1);
+ #endif
+ if(!count)
+ IFX_ERROR("%s: unable to clear urbd in epqh \n",__func__);
+ ifxhcd_epqh_free(epqh);
+ }
+ }
+ IFX_DEBUGPL(DBG_HCDV, "%s %p finish\n",__func__,_epqh_list);
+ /* Ensure there are no URBDs or URBs left. */
+}
+
+static
+void epqh_list_free_all_sub(unsigned long data)
+{
+ ifxhcd_hcd_t *ifxhcd;
+
+ ifxhcd=(ifxhcd_hcd_t *)data;
+ epqh_list_free_1(ifxhcd, &ifxhcd->epqh_list_np );
+ epqh_list_free_1(ifxhcd, &ifxhcd->epqh_list_intr);
+ #ifdef __EN_ISOC__
+ epqh_list_free_1(ifxhcd, &ifxhcd->epqh_list_isoc);
+ #endif
+
+ epqh_list_free_2(ifxhcd, &ifxhcd->epqh_list_np );
+ epqh_list_free_2(ifxhcd, &ifxhcd->epqh_list_intr);
+ #ifdef __EN_ISOC__
+ epqh_list_free_2(ifxhcd, &ifxhcd->epqh_list_isoc);
+ #endif
+}
+
+static
+void epqh_list_free_all(ifxhcd_hcd_t *_ifxhcd)
+{
+ _ifxhcd->tasklet_free_epqh_list.next = NULL;
+ _ifxhcd->tasklet_free_epqh_list.state = 0;
+ atomic_set( &_ifxhcd->tasklet_free_epqh_list.count, 0);
+ _ifxhcd->tasklet_free_epqh_list.func=epqh_list_free_all_sub;
+ _ifxhcd->tasklet_free_epqh_list.data = (unsigned long)_ifxhcd;
+ tasklet_schedule(&_ifxhcd->tasklet_free_epqh_list);
+}
+
+
+/*!
+ \brief This function is called to handle the disconnection of host port.
+ */
+int32_t ifxhcd_disconnect(ifxhcd_hcd_t *_ifxhcd)
+{
+ IFX_DEBUGPL(DBG_HCDV, "%s(%p)\n", __func__, _ifxhcd);
+
+ _ifxhcd->disconnecting=1;
+ /* Set status flags for the hub driver. */
+ _ifxhcd->flags.b.port_connect_status_change = 1;
+ _ifxhcd->flags.b.port_connect_status = 0;
+
+ /*
+ * Shutdown any transfers in process by clearing the Tx FIFO Empty
+ * interrupt mask and status bits and disabling subsequent host
+ * channel interrupts.
+ */
+ {
+ gint_data_t intr = { .d32 = 0 };
+ intr.b.nptxfempty = 1;
+ intr.b.ptxfempty = 1;
+ intr.b.hcintr = 1;
+ ifxusb_mreg (&_ifxhcd->core_if.core_global_regs->gintmsk, intr.d32, 0);
+ ifxusb_mreg (&_ifxhcd->core_if.core_global_regs->gintsts, intr.d32, 0);
+ }
+
+ /* Respond with an error status to all URBs in the schedule. */
+ epqh_list_free_all(_ifxhcd);
+
+ /* Clean up any host channels that were in use. */
+ {
+ int num_channels;
+ ifxhcd_hc_t *channel;
+ ifxusb_hc_regs_t *hc_regs;
+ hcchar_data_t hcchar;
+ int i;
+
+ num_channels = _ifxhcd->core_if.params.host_channels;
+
+ for (i = 0; i < num_channels; i++)
+ {
+ channel = &_ifxhcd->ifxhc[i];
+ hc_regs = _ifxhcd->core_if.hc_regs[i];
+ hcchar.d32 = ifxusb_rreg(&hc_regs->hcchar);
+ if (hcchar.b.chen)
+ printk(KERN_INFO "Warning: %s() HC still enabled\n",__func__);
+ ifxhcd_hc_cleanup(&_ifxhcd->core_if, channel);
+ }
+ }
+ IFX_DEBUGPL(DBG_HCDV, "%s(%p) finish\n", __func__, _ifxhcd);
+ return 1;
+}
+
+
+/*!
+ \brief Frees secondary storage associated with the ifxhcd_hcd structure contained
+ in the struct usb_hcd field.
+ */
+static void ifxhcd_freeextra(struct usb_hcd *_syshcd)
+{
+ ifxhcd_hcd_t *ifxhcd = syshcd_to_ifxhcd(_syshcd);
+
+ IFX_DEBUGPL(DBG_HCD, "IFXUSB HCD FREE\n");
+
+ /* Free memory for EPQH/URBD lists */
+ epqh_list_free_all(ifxhcd);
+
+ /* Free memory for the host channels. */
+ ifxusb_free_buf_h(ifxhcd->status_buf);
+ return;
+}
+
+/*!
+ \brief Initializes the HCD. This function allocates memory for and initializes the
+ static parts of the usb_hcd and ifxhcd_hcd structures. It also registers the
+ USB bus with the core and calls the hc_driver->start() function. It returns
+ a negative error on failure.
+ */
+int ifxhcd_init(ifxhcd_hcd_t *_ifxhcd)
+{
+ int retval = 0;
+ struct usb_hcd *syshcd = NULL;
+
+ IFX_DEBUGPL(DBG_HCD, "IFX USB HCD INIT\n");
+
+ INIT_EPQH_LIST_ALL(_ifxhcd);
+ INIT_EPQH_LIST(_ifxhcd);
+
+ init_timer(&_ifxhcd->autoprobe_timer);
+ init_timer(&_ifxhcd->host_probe_timer);
+ _ifxhcd->probe_sec = 5;
+ _ifxhcd->autoprobe_sec = 30;
+
+ _ifxhcd->hc_driver.description = _ifxhcd->core_if.core_name;
+ _ifxhcd->hc_driver.product_desc = "IFX USB Controller";
+ //_ifxhcd->hc_driver.hcd_priv_size = sizeof(ifxhcd_hcd_t);
+ _ifxhcd->hc_driver.hcd_priv_size = sizeof(unsigned long);
+ _ifxhcd->hc_driver.irq = ifxhcd_irq;
+ _ifxhcd->hc_driver.flags = HCD_MEMORY | HCD_USB2;
+ _ifxhcd->hc_driver.start = ifxhcd_start;
+ _ifxhcd->hc_driver.stop = ifxhcd_stop;
+ //_ifxhcd->hc_driver.reset =
+ //_ifxhcd->hc_driver.suspend =
+ //_ifxhcd->hc_driver.resume =
+ _ifxhcd->hc_driver.urb_enqueue = ifxhcd_urb_enqueue;
+ _ifxhcd->hc_driver.urb_dequeue = ifxhcd_urb_dequeue;
+ _ifxhcd->hc_driver.endpoint_disable = ifxhcd_endpoint_disable;
+ _ifxhcd->hc_driver.get_frame_number = ifxhcd_get_frame_number;
+ _ifxhcd->hc_driver.hub_status_data = ifxhcd_hub_status_data;
+ _ifxhcd->hc_driver.hub_control = ifxhcd_hub_control;
+ //_ifxhcd->hc_driver.hub_suspend =
+ //_ifxhcd->hc_driver.hub_resume =
+ _ifxhcd->pkt_remaining_reload_hs=PKT_REMAINING_RELOAD_HS;
+ _ifxhcd->pkt_remaining_reload_fs=PKT_REMAINING_RELOAD_FS;
+ _ifxhcd->pkt_remaining_reload_ls=PKT_REMAINING_RELOAD_LS;
+ _ifxhcd->pkt_count_limit_bo =8;
+ _ifxhcd->pkt_count_limit_bi =8;
+
+ /* Allocate memory for and initialize the base HCD and */
+ //syshcd = usb_create_hcd(&_ifxhcd->hc_driver, _ifxhcd->dev, _ifxhcd->dev->bus_id);
+ syshcd = usb_create_hcd(&_ifxhcd->hc_driver, _ifxhcd->dev, _ifxhcd->core_if.core_name);
+
+ if (syshcd == NULL)
+ {
+ retval = -ENOMEM;
+ goto error1;
+ }
+
+ syshcd->rsrc_start = (unsigned long)_ifxhcd->core_if.core_global_regs;
+ syshcd->regs = (void *)_ifxhcd->core_if.core_global_regs;
+ syshcd->self.otg_port = 0;
+
+ //*((unsigned long *)(&(syshcd->hcd_priv)))=(unsigned long)_ifxhcd;
+ //*((unsigned long *)(&(syshcd->hcd_priv[0])))=(unsigned long)_ifxhcd;
+ syshcd->hcd_priv[0]=(unsigned long)_ifxhcd;
+ _ifxhcd->syshcd=syshcd;
+ INIT_LIST_HEAD(&_ifxhcd->epqh_list_all );
+ INIT_LIST_HEAD(&_ifxhcd->epqh_list_np );
+ INIT_LIST_HEAD(&_ifxhcd->epqh_list_intr );
+ #ifdef __EN_ISOC__
+ INIT_LIST_HEAD(&_ifxhcd->epqh_list_isoc);
+ #endif
+
+ /*
+ * Create a host channel descriptor for each host channel implemented
+ * in the controller. Initialize the channel descriptor array.
+ */
+ {
+ int num_channels = _ifxhcd->core_if.params.host_channels;
+ int i;
+ for (i = 0; i < num_channels; i++)
+ {
+ _ifxhcd->ifxhc[i].hc_num = i;
+ IFX_DEBUGPL(DBG_HCDV, "HCD Added channel #%d\n", i);
+ }
+ }
+
+ /* Set device flags indicating whether the HCD supports DMA. */
+ if(_ifxhcd->dev->dma_mask)
+ *(_ifxhcd->dev->dma_mask) = ~0;
+ _ifxhcd->dev->coherent_dma_mask = ~0;
+
+ /*
+ * Finish generic HCD initialization and start the HCD. This function
+ * allocates the DMA buffer pool, registers the USB bus, requests the
+ * IRQ line, and calls ifxusb_hcd_start method.
+ */
+ retval = usb_add_hcd(syshcd, _ifxhcd->core_if.irq, 0
+ |IRQF_DISABLED
+ |IRQF_SHARED
+ );
+ if (retval < 0)
+ goto error2;
+
+ /*
+ * Allocate space for storing data on status transactions. Normally no
+ * data is sent, but this space acts as a bit bucket. This must be
+ * done after usb_add_hcd since that function allocates the DMA buffer
+ * pool.
+ */
+ _ifxhcd->status_buf = ifxusb_alloc_buf_h(IFXHCD_STATUS_BUF_SIZE, 1);
+
+ if (_ifxhcd->status_buf)
+ {
+ IFX_DEBUGPL(DBG_HCD, "IFX USB HCD Initialized, bus=%s, usbbus=%d\n", _ifxhcd->core_if.core_name, syshcd->self.busnum);
+ return 0;
+ }
+ IFX_ERROR("%s: status_buf allocation failed\n", __func__);
+
+ /* Error conditions */
+ usb_remove_hcd(syshcd);
+error2:
+ ifxhcd_freeextra(syshcd);
+ usb_put_hcd(syshcd);
+error1:
+ return retval;
+}
+
+/*!
+ \brief Removes the HCD.
+ Frees memory and resources associated with the HCD and deregisters the bus.
+ */
+void ifxhcd_remove(ifxhcd_hcd_t *_ifxhcd)
+{
+ struct usb_hcd *syshcd = ifxhcd_to_syshcd(_ifxhcd);
+
+ IFX_DEBUGPL(DBG_HCD, "IFX USB HCD REMOVE\n");
+
+ /* Turn off all interrupts */
+ ifxusb_wreg (&_ifxhcd->core_if.core_global_regs->gintmsk, 0);
+ ifxusb_mreg (&_ifxhcd->core_if.core_global_regs->gahbcfg, 1, 0);
+
+ usb_remove_hcd(syshcd);
+ ifxhcd_freeextra(syshcd);
+ usb_put_hcd(syshcd);
+
+ return;
+}
+
+
+/* =========================================================================
+ * Linux HC Driver Functions
+ * ========================================================================= */
+
+/*!
+ \brief Initializes the IFXUSB controller and its root hub and prepares it for host
+ mode operation. Activates the root port. Returns 0 on success and a negative
+ error code on failure.
+ Called by USB stack.
+ */
+int ifxhcd_start(struct usb_hcd *_syshcd)
+{
+ ifxhcd_hcd_t *ifxhcd = syshcd_to_ifxhcd (_syshcd);
+ ifxusb_core_if_t *core_if = &ifxhcd->core_if;
+ struct usb_bus *bus;
+
+ IFX_DEBUGPL(DBG_HCD, "IFX USB HCD START\n");
+
+ bus = hcd_to_bus(_syshcd);
+
+ /* Initialize the bus state. */
+ _syshcd->state = HC_STATE_RUNNING;
+
+ /* Initialize and connect root hub if one is not already attached */
+ if (bus->root_hub)
+ {
+ IFX_DEBUGPL(DBG_HCD, "IFX USB HCD Has Root Hub\n");
+ /* Inform the HUB driver to resume. */
+ usb_hcd_resume_root_hub(_syshcd);
+ }
+
+ ifxhcd->flags.d32 = 0;
+
+ /* Put all channels in the free channel list and clean up channel states.*/
+ {
+ int num_channels = ifxhcd->core_if.params.host_channels;
+ int i;
+ for (i = 0; i < num_channels; i++)
+ {
+ ifxhcd_hc_t *channel;
+ channel = &ifxhcd->ifxhc[i];
+ ifxhcd_hc_cleanup(&ifxhcd->core_if, channel);
+ }
+ }
+ /* Initialize the USB core for host mode operation. */
+
+ ifxusb_host_enable_interrupts(core_if);
+ ifxusb_enable_global_interrupts_h(core_if);
+ ifxusb_phy_power_on_h (core_if);
+
+ ifxusb_vbus_init(core_if);
+
+ /* Turn on the vbus power. */
+ {
+ hprt0_data_t hprt0;
+ hprt0.d32 = ifxusb_read_hprt0(core_if);
+
+ IFX_PRINT("Init: Power Port (%d)\n", hprt0.b.prtpwr);
+ if (hprt0.b.prtpwr == 0 )
+ {
+ hprt0.b.prtpwr = 1;
+ ifxusb_wreg(core_if->hprt0, hprt0.d32);
+ ifxusb_vbus_on(core_if);
+ }
+ }
+ return 0;
+}
+
+/*!
+ \brief Halts the IFXUSB host mode operations in a clean manner. USB transfers are
+ stopped.
+ */
+ #if defined(__IS_AR10__)
+void ifxusb_oc_int_free(int port);
+ #else
+void ifxusb_oc_int_free(void);
+ #endif
+
+void ifxhcd_stop(struct usb_hcd *_syshcd)
+{
+ ifxhcd_hcd_t *ifxhcd = syshcd_to_ifxhcd(_syshcd);
+ hprt0_data_t hprt0 = { .d32=0 };
+
+ IFX_DEBUGPL(DBG_HCD, "IFX USB HCD STOP\n");
+
+ /* Turn off all interrupts. */
+ ifxusb_disable_global_interrupts_h(&ifxhcd->core_if );
+ ifxusb_host_disable_interrupts(&ifxhcd->core_if );
+
+ /*
+ * The root hub should be disconnected before this function is called.
+ * The disconnect will clear the URBD lists (via ..._hcd_urb_dequeue)
+ * and the EPQH lists (via ..._hcd_endpoint_disable).
+ */
+
+ /* Turn off the vbus power */
+ IFX_PRINT("PortPower off\n");
+
+ ifxusb_vbus_off(&ifxhcd->core_if );
+
+
+ #if defined(__IS_AR10__)
+ ifxusb_oc_int_free(ifxhcd->core_if.core_no);
+ #else
+ ifxusb_oc_int_free();
+ #endif
+
+
+ ifxusb_vbus_free(&ifxhcd->core_if );
+ hprt0.b.prtpwr = 0;
+ ifxusb_wreg(ifxhcd->core_if.hprt0, hprt0.d32);
+ return;
+}
+
+/*!
+ \brief Returns the current frame number
+ */
+int ifxhcd_get_frame_number(struct usb_hcd *_syshcd)
+{
+ ifxhcd_hcd_t *ifxhcd = syshcd_to_ifxhcd(_syshcd);
+ hfnum_data_t hfnum;
+
+ hfnum.d32 = ifxusb_rreg(&ifxhcd->core_if.host_global_regs->hfnum);
+
+ return hfnum.b.frnum;
+}
+
+/*!
+ \brief Starts processing a USB transfer request specified by a USB Request Block
+ (URB). mem_flags indicates the type of memory allocation to use while
+ processing this URB.
+ */
+int ifxhcd_urb_enqueue( struct usb_hcd *_syshcd,
+#if LINUX_VERSION_CODE < KERNEL_VERSION(2,6,32)
+ struct usb_host_endpoint *_sysep,
+#endif
+ struct urb *_urb,
+ gfp_t _mem_flags)
+{
+ ifxhcd_hcd_t *ifxhcd = syshcd_to_ifxhcd (_syshcd);
+ ifxhcd_epqh_t *epqh = NULL;
+
+ #ifdef __DEBUG__
+ if (CHK_DEBUG_LEVEL(DBG_HCDV | DBG_HCD_URB))
+ dump_urb_info(_urb, "ifxusb_hcd_urb_enqueue");
+ #endif //__DEBUG__
+
+ if (!ifxhcd->flags.b.port_connect_status) /* No longer connected. */
+ return -ENODEV;
+
+ #if !defined(__EN_ISOC__)
+ if(usb_pipetype(_urb->pipe) == PIPE_ISOCHRONOUS)
+ {
+ IFX_ERROR("ISOC transfer not supported!!!\n");
+ return -ENODEV;
+ }
+ #endif
+
+ if(_urb->hcpriv)
+ {
+ IFX_WARN("%s() Previous urb->hcpriv exist %p\n",__func__,_urb->hcpriv);
+ #if 1
+ return -ENOSPC;
+ #endif
+ }
+
+ epqh=ifxhcd_urbd_create (ifxhcd,_urb);
+ if (!epqh)
+ {
+ IFX_ERROR("IFXUSB HCD URB Enqueue failed creating URBD\n");
+ return -ENOSPC;
+ }
+ if(epqh->phase==EPQH_DISABLING )
+ {
+ IFX_ERROR("Enqueue to a DISABLING EP!!!\n");
+ return -ENODEV;
+ }
+
+ #ifdef __DYN_SOF_INTR__
+ ifxhcd->dyn_sof_count = DYN_SOF_COUNT_DEF;
+ #endif
+ //enable_sof(ifxhcd);
+ {
+ gint_data_t gintsts;
+ gintsts.d32=0;
+ gintsts.b.sofintr = 1;
+ ifxusb_mreg(&ifxhcd->core_if.core_global_regs->gintmsk, 0,gintsts.d32);
+ }
+
+ if(epqh->phase==EPQH_IDLE || epqh->phase==EPQH_STDBY )
+ {
+ epqh->phase=EPQH_READY;
+ #ifdef __EPQD_DESTROY_TIMEOUT__
+ del_timer(&epqh->destroy_timer);
+ #endif
+ }
+ select_eps(ifxhcd);
+ return 0;
+}
+
+/*!
+ \brief Aborts/cancels a USB transfer request. Always returns 0 to indicate
+ success.
+ */
+#if LINUX_VERSION_CODE < KERNEL_VERSION(2,6,32)
+int ifxhcd_urb_dequeue(struct usb_hcd *_syshcd, struct urb *_urb)
+#else
+int ifxhcd_urb_dequeue(struct usb_hcd *_syshcd, struct urb *_urb, int status)
+#endif
+{
+ ifxhcd_hcd_t *ifxhcd;
+ struct usb_host_endpoint *sysep;
+ ifxhcd_urbd_t *urbd;
+ ifxhcd_epqh_t *epqh;
+
+ IFX_DEBUGPL(DBG_HCD, "IFXUSB HCD URB Dequeue\n");
+ #if !defined(__EN_ISOC__)
+ if(usb_pipetype(_urb->pipe) == PIPE_ISOCHRONOUS)
+ return 0;
+ #endif
+
+ ifxhcd = syshcd_to_ifxhcd(_syshcd);
+
+ urbd = (ifxhcd_urbd_t *) _urb->hcpriv;
+ if(!urbd)
+ {
+ #if LINUX_VERSION_CODE < KERNEL_VERSION(2,6,32)
+ _urb->status=-ETIMEDOUT;
+ usb_hcd_giveback_urb(_syshcd, _urb);
+ #else
+// usb_hcd_giveback_urb(_syshcd, _urb,-ETIMEDOUT);
+ usb_hcd_giveback_urb(_syshcd, _urb,status);
+ #endif
+ return 0;
+ }
+
+ sysep = ifxhcd_urb_to_endpoint(_urb);
+ if(sysep)
+ {
+ LOCK_EPQH_LIST_ALL(ifxhcd);
+ epqh = sysep_to_epqh(ifxhcd,sysep);
+ UNLOCK_EPQH_LIST_ALL(ifxhcd);
+ if(epqh!=urbd->epqh)
+ IFX_ERROR("%s inconsistant epqh %p %p\n",__func__,epqh,urbd->epqh);
+ }
+ else
+ epqh = (ifxhcd_epqh_t *) urbd->epqh;
+ if(!ifxhcd->flags.b.port_connect_status || !epqh)
+ {
+ urbd->phase=URBD_DEQUEUEING;
+ ifxhcd_complete_urb(ifxhcd, urbd, -ENODEV);
+ }
+ else
+ {
+ LOCK_URBD_LIST(epqh);
+ if( urbd->phase==URBD_IDLE
+ || urbd->phase==URBD_ACTIVE
+// || urbd->phase==URBD_STARTING
+ )
+ {
+ urbd->phase=URBD_DEQUEUEING;
+ #if LINUX_VERSION_CODE < KERNEL_VERSION(2,6,32)
+ ifxhcd_complete_urb(ifxhcd, urbd, -ETIMEDOUT);
+ #else
+ ifxhcd_complete_urb(ifxhcd, urbd, status);
+ #endif
+ }
+ else if( urbd->phase==URBD_STARTED
+ || urbd->phase==URBD_STARTING
+// || urbd->phase==URBD_ACTIVE
+ )
+ {
+ if(ifxhcd_hc_halt(&ifxhcd->core_if, epqh->hc, HC_XFER_URB_DEQUEUE))
+ {
+ urbd->phase=URBD_DEQUEUEING;
+ #if LINUX_VERSION_CODE < KERNEL_VERSION(2,6,32)
+ ifxhcd_complete_urb(ifxhcd, urbd, -ETIMEDOUT);
+ #else
+ ifxhcd_complete_urb(ifxhcd, urbd, status);
+ #endif
+ ifxhcd_epqh_idle(epqh);
+ }
+ }
+ UNLOCK_URBD_LIST(epqh);
+ }
+ return 0;
+}
+
+
+/*!
+ \brief Frees resources in the IFXUSB controller related to a given endpoint. Also
+ clears state in the HCD related to the endpoint. Any URBs for the endpoint
+ must already be dequeued.
+ */
+void ifxhcd_endpoint_disable( struct usb_hcd *_syshcd,
+ struct usb_host_endpoint *_sysep)
+{
+ ifxhcd_hcd_t *ifxhcd;
+ ifxhcd_epqh_t *epqh;
+
+ IFX_DEBUGPL(DBG_HCD, "IFXUSB HCD EP DISABLE: _bEndpointAddress=0x%02x, "
+ "endpoint=%d\n", _sysep->desc.bEndpointAddress,
+ ifxhcd_ep_addr_to_endpoint(_sysep->desc.bEndpointAddress));
+
+ ifxhcd = syshcd_to_ifxhcd(_syshcd);
+
+ LOCK_EPQH_LIST_ALL(ifxhcd);
+ epqh = sysep_to_epqh(ifxhcd,_sysep);
+ UNLOCK_EPQH_LIST_ALL(ifxhcd);
+
+ if (!epqh)
+ {
+ return;
+ }
+ else
+ {
+ if (epqh->sysep!=_sysep)
+ {
+ IFX_ERROR("%s inconsistant sysep %p %p %p\n",__func__,epqh,epqh->sysep,_sysep);
+ return;
+ }
+
+ epqh->phase=EPQH_DISABLING;
+ kill_all_urbs_in_epqh(ifxhcd, epqh, -ETIMEDOUT);
+ {
+ uint32_t count=0x80000;
+ for(;!list_empty(&epqh->urbd_list) && count> 0; count--) udelay(1);
+ if(!count)
+ IFX_ERROR("%s: unable to clear urbd in epqh \n",__func__);
+ }
+ ifxhcd_epqh_free(epqh);
+ }
+ IFX_DEBUGPL(DBG_HCD, "IFXUSB HCD EP DISABLE: done\n");
+}
+
+
+/*!
+ \brief Handles host mode interrupts for the IFXUSB controller. Returns IRQ_NONE if
+ there was no interrupt to handle. Returns IRQ_HANDLED if there was a valid
+ interrupt.
+
+ This function is called by the USB core when an interrupt occurs
+ */
+irqreturn_t ifxhcd_irq(struct usb_hcd *_syshcd)
+{
+ ifxhcd_hcd_t *ifxhcd = syshcd_to_ifxhcd (_syshcd);
+ int32_t retval=0;
+
+ //mask_and_ack_ifx_irq (ifxhcd->core_if.irq);
+ retval = ifxhcd_handle_intr(ifxhcd);
+ return IRQ_RETVAL(retval);
+}
+
+
+
+/*!
+ \brief Creates Status Change bitmap for the root hub and root port. The bitmap is
+ returned in buf. Bit 0 is the status change indicator for the root hub. Bit 1
+ is the status change indicator for the single root port. Returns 1 if either
+ change indicator is 1, otherwise returns 0.
+ */
+int ifxhcd_hub_status_data(struct usb_hcd *_syshcd, char *_buf)
+{
+ ifxhcd_hcd_t *ifxhcd = syshcd_to_ifxhcd (_syshcd);
+
+ _buf[0] = 0;
+ _buf[0] |= (ifxhcd->flags.b.port_connect_status_change ||
+ ifxhcd->flags.b.port_reset_change ||
+ ifxhcd->flags.b.port_enable_change ||
+ ifxhcd->flags.b.port_suspend_change ||
+ ifxhcd->flags.b.port_over_current_change) << 1;
+
+ #ifdef __DEBUG__
+ if (_buf[0])
+ {
+ IFX_DEBUGPL(DBG_HCD, "IFXUSB HCD HUB STATUS DATA:"
+ " Root port status changed\n");
+ IFX_DEBUGPL(DBG_HCDV, " port_connect_status_change: %d\n",
+ ifxhcd->flags.b.port_connect_status_change);
+ IFX_DEBUGPL(DBG_HCDV, " port_reset_change: %d\n",
+ ifxhcd->flags.b.port_reset_change);
+ IFX_DEBUGPL(DBG_HCDV, " port_enable_change: %d\n",
+ ifxhcd->flags.b.port_enable_change);
+ IFX_DEBUGPL(DBG_HCDV, " port_suspend_change: %d\n",
+ ifxhcd->flags.b.port_suspend_change);
+ IFX_DEBUGPL(DBG_HCDV, " port_over_current_change: %d\n",
+ ifxhcd->flags.b.port_over_current_change);
+ {
+ hprt0_data_t hprt0;
+ hprt0.d32 = ifxusb_rreg(ifxhcd->core_if.hprt0);
+ IFX_DEBUGPL(DBG_HCDV, " port reg :%08X\n",hprt0.d32);
+ IFX_DEBUGPL(DBG_HCDV, " port reg :connect: %d/%d\n",hprt0.b.prtconnsts,hprt0.b.prtconndet);
+ IFX_DEBUGPL(DBG_HCDV, " port reg :enable: %d/%d\n",hprt0.b.prtena,hprt0.b.prtenchng);
+ IFX_DEBUGPL(DBG_HCDV, " port reg :OC: %d/%d\n",hprt0.b.prtovrcurract,hprt0.b.prtovrcurrchng);
+ IFX_DEBUGPL(DBG_HCDV, " port reg :rsume/suspend/reset: %d/%d/%d\n",hprt0.b.prtres,hprt0.b.prtsusp,hprt0.b.prtrst);
+ IFX_DEBUGPL(DBG_HCDV, " port reg :port power: %d/\n",hprt0.b.prtpwr);
+ IFX_DEBUGPL(DBG_HCDV, " port reg :speed: %d/\n",hprt0.b.prtspd);
+ }
+ }
+ #endif //__DEBUG__
+ return (_buf[0] != 0);
+}
+
+#ifdef __WITH_HS_ELECT_TST__
+ extern void do_setup(ifxusb_core_if_t *_core_if) ;
+ extern void do_in_ack(ifxusb_core_if_t *_core_if);
+#endif //__WITH_HS_ELECT_TST__
+
+/*!
+ \brief Handles hub class-specific requests.
+ */
+int ifxhcd_hub_control( struct usb_hcd *_syshcd,
+ u16 _typeReq,
+ u16 _wValue,
+ u16 _wIndex,
+ char *_buf,
+ u16 _wLength)
+{
+ int retval = 0;
+ ifxhcd_hcd_t *ifxhcd = syshcd_to_ifxhcd (_syshcd);
+ ifxusb_core_if_t *core_if = &ifxhcd->core_if;
+ struct usb_hub_descriptor *desc;
+ hprt0_data_t hprt0 = {.d32 = 0};
+
+ uint32_t port_status;
+
+ switch (_typeReq)
+ {
+ case ClearHubFeature:
+ IFX_DEBUGPL (DBG_HCD, "IFXUSB HCD HUB CONTROL - "
+ "ClearHubFeature 0x%x\n", _wValue);
+ switch (_wValue)
+ {
+ case C_HUB_LOCAL_POWER:
+ case C_HUB_OVER_CURRENT:
+ /* Nothing required here */
+ break;
+ default:
+ retval = -EINVAL;
+ IFX_ERROR ("IFXUSB HCD - "
+ "ClearHubFeature request %xh unknown\n", _wValue);
+ }
+ break;
+ case ClearPortFeature:
+ if (!_wIndex || _wIndex > 1)
+ goto error;
+
+ switch (_wValue)
+ {
+ case USB_PORT_FEAT_ENABLE:
+ IFX_DEBUGPL (DBG_ANY, "IFXUSB HCD HUB CONTROL - "
+ "ClearPortFeature USB_PORT_FEAT_ENABLE\n");
+ hprt0.d32 = ifxusb_read_hprt0 (core_if);
+ hprt0.b.prtena = 1;
+ ifxusb_wreg(core_if->hprt0, hprt0.d32);
+ break;
+ case USB_PORT_FEAT_SUSPEND:
+ IFX_DEBUGPL (DBG_HCD, "IFXUSB HCD HUB CONTROL - "
+ "ClearPortFeature USB_PORT_FEAT_SUSPEND\n");
+ hprt0.d32 = ifxusb_read_hprt0 (core_if);
+ hprt0.b.prtres = 1;
+ ifxusb_wreg(core_if->hprt0, hprt0.d32);
+ /* Clear Resume bit */
+ mdelay (100);
+ hprt0.b.prtres = 0;
+ ifxusb_wreg(core_if->hprt0, hprt0.d32);
+ break;
+ case USB_PORT_FEAT_POWER:
+ IFX_DEBUGPL (DBG_HCD, "IFXUSB HCD HUB CONTROL - "
+ "ClearPortFeature USB_PORT_FEAT_POWER\n");
+ #ifdef __IS_DUAL__
+ ifxusb_vbus_off(core_if);
+ #else
+ ifxusb_vbus_off(core_if);
+ #endif
+ hprt0.d32 = ifxusb_read_hprt0 (core_if);
+ hprt0.b.prtpwr = 0;
+ ifxusb_wreg(core_if->hprt0, hprt0.d32);
+ break;
+ case USB_PORT_FEAT_INDICATOR:
+ IFX_DEBUGPL (DBG_HCD, "IFXUSB HCD HUB CONTROL - "
+ "ClearPortFeature USB_PORT_FEAT_INDICATOR\n");
+ /* Port inidicator not supported */
+ break;
+ case USB_PORT_FEAT_C_CONNECTION:
+ /* Clears drivers internal connect status change
+ * flag */
+ IFX_DEBUGPL (DBG_HCD, "IFXUSB HCD HUB CONTROL - "
+ "ClearPortFeature USB_PORT_FEAT_C_CONNECTION\n");
+ ifxhcd->flags.b.port_connect_status_change = 0;
+ break;
+ case USB_PORT_FEAT_C_RESET:
+ /* Clears the driver's internal Port Reset Change
+ * flag */
+ IFX_DEBUGPL (DBG_HCD, "IFXUSB HCD HUB CONTROL - "
+ "ClearPortFeature USB_PORT_FEAT_C_RESET\n");
+ ifxhcd->flags.b.port_reset_change = 0;
+ break;
+ case USB_PORT_FEAT_C_ENABLE:
+ /* Clears the driver's internal Port
+ * Enable/Disable Change flag */
+ IFX_DEBUGPL (DBG_HCD, "IFXUSB HCD HUB CONTROL - "
+ "ClearPortFeature USB_PORT_FEAT_C_ENABLE\n");
+ ifxhcd->flags.b.port_enable_change = 0;
+ break;
+ case USB_PORT_FEAT_C_SUSPEND:
+ /* Clears the driver's internal Port Suspend
+ * Change flag, which is set when resume signaling on
+ * the host port is complete */
+ IFX_DEBUGPL (DBG_HCD, "IFXUSB HCD HUB CONTROL - "
+ "ClearPortFeature USB_PORT_FEAT_C_SUSPEND\n");
+ ifxhcd->flags.b.port_suspend_change = 0;
+ break;
+ case USB_PORT_FEAT_C_OVER_CURRENT:
+ IFX_DEBUGPL (DBG_HCD, "IFXUSB HCD HUB CONTROL - "
+ "ClearPortFeature USB_PORT_FEAT_C_OVER_CURRENT\n");
+ ifxhcd->flags.b.port_over_current_change = 0;
+ break;
+ default:
+ retval = -EINVAL;
+ IFX_ERROR ("IFXUSB HCD - "
+ "ClearPortFeature request %xh "
+ "unknown or unsupported\n", _wValue);
+ }
+ break;
+ case GetHubDescriptor:
+ IFX_DEBUGPL (DBG_HCD, "IFXUSB HCD HUB CONTROL - "
+ "GetHubDescriptor\n");
+ desc = (struct usb_hub_descriptor *)_buf;
+ desc->bDescLength = 9;
+ desc->bDescriptorType = 0x29;
+ desc->bNbrPorts = 1;
+ desc->wHubCharacteristics = 0x08;
+ desc->bPwrOn2PwrGood = 1;
+ desc->bHubContrCurrent = 0;
+
+ desc->u.hs.DeviceRemovable[0] = 0;
+ desc->u.hs.DeviceRemovable[1] = 1;
+ /*desc->bitmap[0] = 0;
+ desc->bitmap[1] = 0xff;*/
+ break;
+ case GetHubStatus:
+ IFX_DEBUGPL (DBG_HCD, "IFXUSB HCD HUB CONTROL - "
+ "GetHubStatus\n");
+ memset (_buf, 0, 4);
+ break;
+ case GetPortStatus:
+ IFX_DEBUGPL (DBG_HCD, "IFXUSB HCD HUB CONTROL - "
+ "GetPortStatus\n");
+ if (!_wIndex || _wIndex > 1)
+ goto error;
+ port_status = 0;
+ if (ifxhcd->flags.b.port_connect_status_change)
+ port_status |= (1 << USB_PORT_FEAT_C_CONNECTION);
+ if (ifxhcd->flags.b.port_enable_change)
+ port_status |= (1 << USB_PORT_FEAT_C_ENABLE);
+ if (ifxhcd->flags.b.port_suspend_change)
+ port_status |= (1 << USB_PORT_FEAT_C_SUSPEND);
+ if (ifxhcd->flags.b.port_reset_change)
+ port_status |= (1 << USB_PORT_FEAT_C_RESET);
+ if (ifxhcd->flags.b.port_over_current_change)
+ {
+ IFX_ERROR("Device Not Supported\n");
+ port_status |= (1 << USB_PORT_FEAT_C_OVER_CURRENT);
+ }
+ if (!ifxhcd->flags.b.port_connect_status)
+ {
+ /*
+ * The port is disconnected, which means the core is
+ * either in device mode or it soon will be. Just
+ * return 0's for the remainder of the port status
+ * since the port register can't be read if the core
+ * is in device mode.
+ */
+ *((u32 *) _buf) = cpu_to_le32(port_status);
+ break;
+ }
+
+ hprt0.d32 = ifxusb_rreg(core_if->hprt0);
+ IFX_DEBUGPL(DBG_HCDV, " HPRT0: 0x%08x\n", hprt0.d32);
+ if (hprt0.b.prtconnsts)
+ port_status |= (1 << USB_PORT_FEAT_CONNECTION);
+ if (hprt0.b.prtena)
+ {
+ ifxhcd->disconnecting=0;
+ port_status |= (1 << USB_PORT_FEAT_ENABLE);
+ }
+ if (hprt0.b.prtsusp)
+ port_status |= (1 << USB_PORT_FEAT_SUSPEND);
+ if (hprt0.b.prtovrcurract)
+ port_status |= (1 << USB_PORT_FEAT_OVER_CURRENT);
+ if (hprt0.b.prtrst)
+ port_status |= (1 << USB_PORT_FEAT_RESET);
+ if (hprt0.b.prtpwr)
+ port_status |= (1 << USB_PORT_FEAT_POWER);
+ if (hprt0.b.prtspd == IFXUSB_HPRT0_PRTSPD_HIGH_SPEED)
+ port_status |= USB_PORT_STAT_HIGH_SPEED;
+ else if (hprt0.b.prtspd == IFXUSB_HPRT0_PRTSPD_LOW_SPEED)
+ port_status |= USB_PORT_STAT_LOW_SPEED;
+ if (hprt0.b.prttstctl)
+ port_status |= (1 << USB_PORT_FEAT_TEST);
+ /* USB_PORT_FEAT_INDICATOR unsupported always 0 */
+ *((u32 *) _buf) = cpu_to_le32(port_status);
+ break;
+ case SetHubFeature:
+ IFX_DEBUGPL (DBG_HCD, "IFXUSB HCD HUB CONTROL - "
+ "SetHubFeature\n");
+ /* No HUB features supported */
+ break;
+ case SetPortFeature:
+ if (_wValue != USB_PORT_FEAT_TEST && (!_wIndex || _wIndex > 1))
+ goto error;
+ /*
+ * The port is disconnected, which means the core is
+ * either in device mode or it soon will be. Just
+ * return without doing anything since the port
+ * register can't be written if the core is in device
+ * mode.
+ */
+ if (!ifxhcd->flags.b.port_connect_status)
+ break;
+ switch (_wValue)
+ {
+ case USB_PORT_FEAT_SUSPEND:
+ IFX_DEBUGPL (DBG_HCD, "IFXUSB HCD HUB CONTROL - "
+ "SetPortFeature - USB_PORT_FEAT_SUSPEND\n");
+ hprt0.d32 = ifxusb_read_hprt0 (core_if);
+ hprt0.b.prtsusp = 1;
+ ifxusb_wreg(core_if->hprt0, hprt0.d32);
+ //IFX_PRINT( "SUSPEND: HPRT0=%0x\n", hprt0.d32);
+ /* Suspend the Phy Clock */
+ {
+ pcgcctl_data_t pcgcctl = {.d32=0};
+ pcgcctl.b.stoppclk = 1;
+ ifxusb_wreg(core_if->pcgcctl, pcgcctl.d32);
+ }
+ break;
+ case USB_PORT_FEAT_POWER:
+ IFX_DEBUGPL (DBG_HCD, "IFXUSB HCD HUB CONTROL - "
+ "SetPortFeature - USB_PORT_FEAT_POWER\n");
+ ifxusb_vbus_on (core_if);
+ hprt0.d32 = ifxusb_read_hprt0 (core_if);
+ hprt0.b.prtpwr = 1;
+ ifxusb_wreg(core_if->hprt0, hprt0.d32);
+ break;
+ case USB_PORT_FEAT_RESET:
+ IFX_DEBUGPL (DBG_HCD, "IFXUSB HCD HUB CONTROL - "
+ "SetPortFeature - USB_PORT_FEAT_RESET\n");
+ hprt0.d32 = ifxusb_read_hprt0 (core_if);
+ hprt0.b.prtrst = 1;
+ ifxusb_wreg(core_if->hprt0, hprt0.d32);
+ /* Clear reset bit in 10ms (FS/LS) or 50ms (HS) */
+ MDELAY (60);
+ hprt0.b.prtrst = 0;
+ ifxusb_wreg(core_if->hprt0, hprt0.d32);
+ break;
+ #ifdef __WITH_HS_ELECT_TST__
+ case USB_PORT_FEAT_TEST:
+ {
+ uint32_t t;
+ gint_data_t gintmsk;
+ t = (_wIndex >> 8); /* MSB wIndex USB */
+ IFX_DEBUGPL (DBG_HCD, "IFXUSB HCD HUB CONTROL - "
+ "SetPortFeature - USB_PORT_FEAT_TEST %d\n", t);
+ warn("USB_PORT_FEAT_TEST %d\n", t);
+ if (t < 6)
+ {
+ hprt0.d32 = ifxusb_read_hprt0 (core_if);
+ hprt0.b.prttstctl = t;
+ ifxusb_wreg(core_if->hprt0, hprt0.d32);
+ }
+ else if (t == 6) /* HS_HOST_PORT_SUSPEND_RESUME */
+ {
+ /* Save current interrupt mask */
+ gintmsk.d32 = ifxusb_rreg(&core_if->core_global_regs->gintmsk);
+
+ /* Disable all interrupts while we muck with
+ * the hardware directly
+ */
+ ifxusb_wreg(&core_if->core_global_regs->gintmsk, 0);
+
+ /* 15 second delay per the test spec */
+ mdelay(15000);
+
+ /* Drive suspend on the root port */
+ hprt0.d32 = ifxusb_read_hprt0 (core_if);
+ hprt0.b.prtsusp = 1;
+ hprt0.b.prtres = 0;
+ ifxusb_wreg(core_if->hprt0, hprt0.d32);
+
+ /* 15 second delay per the test spec */
+ mdelay(15000);
+
+ /* Drive resume on the root port */
+ hprt0.d32 = ifxusb_read_hprt0 (core_if);
+ hprt0.b.prtsusp = 0;
+ hprt0.b.prtres = 1;
+ ifxusb_wreg(core_if->hprt0, hprt0.d32);
+ mdelay(100);
+
+ /* Clear the resume bit */
+ hprt0.b.prtres = 0;
+ ifxusb_wreg(core_if->hprt0, hprt0.d32);
+
+ /* Restore interrupts */
+ ifxusb_wreg(&core_if->core_global_regs->gintmsk, gintmsk.d32);
+ }
+ else if (t == 7) /* SINGLE_STEP_GET_DEVICE_DESCRIPTOR setup */
+ {
+ /* Save current interrupt mask */
+ gintmsk.d32 = ifxusb_rreg(&core_if->core_global_regs->gintmsk);
+
+ /* Disable all interrupts while we muck with
+ * the hardware directly
+ */
+ ifxusb_wreg(&core_if->core_global_regs->gintmsk, 0);
+
+ /* 15 second delay per the test spec */
+ mdelay(15000);
+
+ /* Send the Setup packet */
+ do_setup(core_if);
+
+ /* 15 second delay so nothing else happens for awhile */
+ mdelay(15000);
+
+ /* Restore interrupts */
+ ifxusb_wreg(&core_if->core_global_regs->gintmsk, gintmsk.d32);
+ }
+
+ else if (t == 8) /* SINGLE_STEP_GET_DEVICE_DESCRIPTOR execute */
+ {
+ /* Save current interrupt mask */
+ gintmsk.d32 = ifxusb_rreg(&core_if->core_global_regs->gintmsk);
+
+ /* Disable all interrupts while we muck with
+ * the hardware directly
+ */
+ ifxusb_wreg(&core_if->core_global_regs->gintmsk, 0);
+
+ /* Send the Setup packet */
+ do_setup(core_if);
+
+ /* 15 second delay so nothing else happens for awhile */
+ mdelay(15000);
+
+ /* Send the In and Ack packets */
+ do_in_ack(core_if);
+
+ /* 15 second delay so nothing else happens for awhile */
+ mdelay(15000);
+
+ /* Restore interrupts */
+ ifxusb_wreg(&core_if->core_global_regs->gintmsk, gintmsk.d32);
+ }
+ }
+ break;
+ #endif //__WITH_HS_ELECT_TST__
+ case USB_PORT_FEAT_INDICATOR:
+ IFX_DEBUGPL (DBG_HCD, "IFXUSB HCD HUB CONTROL - "
+ "SetPortFeature - USB_PORT_FEAT_INDICATOR\n");
+ /* Not supported */
+ break;
+ default:
+ retval = -EINVAL;
+ IFX_ERROR ("IFXUSB HCD - "
+ "SetPortFeature request %xh "
+ "unknown or unsupported\n", _wValue);
+ }
+ break;
+ default:
+ error:
+ retval = -EINVAL;
+ IFX_WARN ("IFXUSB HCD - "
+ "Unknown hub control request type or invalid typeReq: %xh wIndex: %xh wValue: %xh\n",
+ _typeReq, _wIndex, _wValue);
+ }
+ return retval;
+}
+
+
+
+
+/*!
+ \brief This function trigger a data transfer for a host channel and
+ starts the transfer.
+
+ For a PING transfer in Slave mode, the Do Ping bit is set in the HCTSIZ
+ register along with a packet count of 1 and the channel is enabled. This
+ causes a single PING transaction to occur. Other fields in HCTSIZ are
+ simply set to 0 since no data transfer occurs in this case.
+
+ For a PING transfer in DMA mode, the HCTSIZ register is initialized with
+ all the information required to perform the subsequent data transfer. In
+ addition, the Do Ping bit is set in the HCTSIZ register. In this case, the
+ controller performs the entire PING protocol, then starts the data
+ transfer.
+ \param _core_if Pointer of core_if structure
+ \param _ifxhc Information needed to initialize the host channel. The xfer_len
+ value may be reduced to accommodate the max widths of the XferSize and
+ PktCnt fields in the HCTSIZn register. The multi_count value may be changed
+ to reflect the final xfer_len value.
+ */
+void ifxhcd_hc_start(ifxhcd_hcd_t *_ifxhcd, ifxhcd_hc_t *_ifxhc)
+{
+ ifxusb_core_if_t *core_if = &_ifxhcd->core_if;
+ uint32_t max_hc_xfer_size = core_if->params.max_transfer_size;
+ uint16_t max_hc_pkt_count = core_if->params.max_packet_count;
+ ifxusb_hc_regs_t *hc_regs = core_if->hc_regs[_ifxhc->hc_num];
+ hfnum_data_t hfnum;
+
+ hprt0_data_t hprt0;
+
+ if(_ifxhc->epqh->urbd->phase==URBD_DEQUEUEING)
+ return;
+
+ hprt0.d32 = ifxusb_read_hprt0(core_if);
+
+ if(_ifxhcd->pkt_remaining==0)
+ return;
+
+#if 0
+ if(_ifxhc->phase!=HC_WAITING)
+ printk(KERN_INFO "%s() line %d: _ifxhc->phase!=HC_WAITING :%d\n",__func__,__LINE__,_ifxhc->phase);
+ if(_ifxhc->epqh->urbd->phase==URBD_IDLE ) printk(KERN_INFO "%s() line %d: _ifxhc->epqh->urbd->phase==URBD_IDLE\n",__func__,__LINE__);
+// if(_ifxhc->epqh->urbd->phase==URBD_ACTIVE ) printk(KERN_INFO "%s() line %d: _ifxhc->epqh->urbd->phase==URBD_ACTIVE\n",__func__,__LINE__);
+ if(_ifxhc->epqh->urbd->phase==URBD_STARTING ) printk(KERN_INFO "%s() line %d: _ifxhc->epqh->urbd->phase==URBD_STARTING\n",__func__,__LINE__);
+ if(_ifxhc->epqh->urbd->phase==URBD_STARTED ) printk(KERN_INFO "%s() line %d: _ifxhc->epqh->urbd->phase==URBD_STARTED\n",__func__,__LINE__);
+ if(_ifxhc->epqh->urbd->phase==URBD_COMPLETING) printk(KERN_INFO "%s() line %d: _ifxhc->epqh->urbd->phase==URBD_COMPLETING\n",__func__,__LINE__);
+ if(_ifxhc->epqh->urbd->phase==URBD_DEQUEUEING) printk(KERN_INFO "%s() line %d: _ifxhc->epqh->urbd->phase==URBD_DEQUEUEING\n",__func__,__LINE__);
+ if(_ifxhc->epqh->urbd->phase==URBD_FINISHING ) printk(KERN_INFO "%s() line %d: _ifxhc->epqh->urbd->phase==URBD_FINISHING\n",__func__,__LINE__);
+#endif
+
+ if (hprt0.b.prtspd == IFXUSB_HPRT0_PRTSPD_HIGH_SPEED)
+ {
+ if (_ifxhc->split)
+ {
+ if(max_hc_pkt_count > _ifxhcd->pkt_remaining)
+ max_hc_pkt_count = _ifxhcd->pkt_remaining;
+ }
+ else if(_ifxhc->ep_type == IFXUSB_EP_TYPE_BULK)
+ {
+ if( _ifxhc->is_in && _ifxhcd->pkt_count_limit_bi && max_hc_pkt_count > _ifxhcd->pkt_count_limit_bi)
+ max_hc_pkt_count = _ifxhcd->pkt_count_limit_bi;
+ if(!_ifxhc->is_in && _ifxhcd->pkt_count_limit_bo && max_hc_pkt_count > _ifxhcd->pkt_count_limit_bo)
+ max_hc_pkt_count = _ifxhcd->pkt_count_limit_bo;
+ if(max_hc_pkt_count*8 > _ifxhcd->pkt_remaining)
+ max_hc_pkt_count = _ifxhcd->pkt_remaining/8;
+ }
+ else
+ {
+ if(max_hc_pkt_count > _ifxhcd->pkt_remaining)
+ max_hc_pkt_count = _ifxhcd->pkt_remaining;
+ }
+ }
+ else if (hprt0.b.prtspd == IFXUSB_HPRT0_PRTSPD_LOW_SPEED)
+ {
+ if(max_hc_pkt_count > _ifxhcd->pkt_remaining)
+ max_hc_pkt_count = _ifxhcd->pkt_remaining;
+ }
+ else
+ {
+ if(max_hc_pkt_count > _ifxhcd->pkt_remaining)
+ max_hc_pkt_count = _ifxhcd->pkt_remaining;
+ }
+
+ if(max_hc_pkt_count==0)
+ return;
+
+ if(max_hc_pkt_count * _ifxhc->mps < max_hc_xfer_size)
+ max_hc_xfer_size = max_hc_pkt_count * _ifxhc->mps;
+
+ _ifxhc->epqh->urbd->phase=URBD_STARTING;
+
+ if(_ifxhc->is_in || _ifxhc->speed != IFXUSB_EP_SPEED_HIGH || _ifxhc->xfer_len==0)
+ _ifxhc->epqh->do_ping=0;
+ if(_ifxhc->ep_type == IFXUSB_EP_TYPE_INTR || _ifxhc->ep_type == IFXUSB_EP_TYPE_ISOC)
+ _ifxhc->epqh->do_ping=0;
+ if(_ifxhc->ep_type == IFXUSB_EP_TYPE_CTRL && _ifxhc->control_phase != IFXHCD_CONTROL_DATA )
+ _ifxhc->epqh->do_ping=0;
+
+ if (_ifxhc->split > 0)
+ {
+ _ifxhc->start_pkt_count = 1;
+ if(!_ifxhc->is_in && _ifxhc->split>1) // OUT CSPLIT
+ _ifxhc->xfer_len = 0;
+ if (_ifxhc->xfer_len > _ifxhc->mps)
+ _ifxhc->xfer_len = _ifxhc->mps;
+ if (_ifxhc->xfer_len > 188)
+ _ifxhc->xfer_len = 188;
+ }
+ else if(_ifxhc->is_in)
+ {
+ _ifxhc->short_rw = 0;
+ if (_ifxhc->xfer_len > 0)
+ {
+ if (_ifxhc->xfer_len > max_hc_xfer_size)
+ _ifxhc->xfer_len = max_hc_xfer_size - _ifxhc->mps + 1;
+ _ifxhc->start_pkt_count = (_ifxhc->xfer_len + _ifxhc->mps - 1) / _ifxhc->mps;
+ if (_ifxhc->start_pkt_count > max_hc_pkt_count)
+ _ifxhc->start_pkt_count = max_hc_pkt_count;
+ }
+ else /* Need 1 packet for transfer length of 0. */
+ _ifxhc->start_pkt_count = 1;
+ _ifxhc->xfer_len = _ifxhc->start_pkt_count * _ifxhc->mps;
+ }
+ else //non-split out
+ {
+ if (_ifxhc->xfer_len == 0)
+ {
+ if(_ifxhc->short_rw==0)
+ printk(KERN_INFO "Info: %s() line %d: ZLP write without short_rw set! xfer_count:%d/%d \n",__func__,__LINE__,
+ _ifxhc->xfer_count,
+ _ifxhc->epqh->urbd->xfer_len);
+ _ifxhc->start_pkt_count = 1;
+ }
+ else
+ {
+ if (_ifxhc->xfer_len > max_hc_xfer_size)
+ {
+ _ifxhc->start_pkt_count = (max_hc_xfer_size / _ifxhc->mps);
+ _ifxhc->xfer_len = _ifxhc->start_pkt_count * _ifxhc->mps;
+ }
+ else
+ {
+ _ifxhc->start_pkt_count = (_ifxhc->xfer_len+_ifxhc->mps-1) / _ifxhc->mps;
+// if(_ifxhc->start_pkt_count * _ifxhc->mps == _ifxhc->xfer_len )
+// _ifxhc->start_pkt_count += _ifxhc->short_rw;
+ }
+ }
+ }
+
+ if (hprt0.b.prtspd == IFXUSB_HPRT0_PRTSPD_HIGH_SPEED)
+ {
+ if (_ifxhc->split)
+ {
+ if( _ifxhcd->pkt_remaining > _ifxhc->start_pkt_count)
+ _ifxhcd->pkt_remaining -= _ifxhc->start_pkt_count;
+ else
+ _ifxhcd->pkt_remaining = 0;
+ }
+ else if(_ifxhc->ep_type == IFXUSB_EP_TYPE_BULK)
+ {
+ if( _ifxhcd->pkt_remaining*8 > _ifxhc->start_pkt_count)
+ _ifxhcd->pkt_remaining -= (_ifxhc->start_pkt_count*8);
+ else
+ _ifxhcd->pkt_remaining = 0;
+ }
+ else
+ {
+ if( _ifxhcd->pkt_remaining > _ifxhc->start_pkt_count)
+ _ifxhcd->pkt_remaining -= _ifxhc->start_pkt_count;
+ else
+ _ifxhcd->pkt_remaining = 0;
+ }
+ }
+ else if (hprt0.b.prtspd == IFXUSB_HPRT0_PRTSPD_LOW_SPEED)
+ {
+ if( _ifxhcd->pkt_remaining > _ifxhc->start_pkt_count)
+ _ifxhcd->pkt_remaining -= _ifxhc->start_pkt_count;
+ else
+ _ifxhcd->pkt_remaining = 0;
+ }
+ else
+ {
+ if( _ifxhcd->pkt_remaining > _ifxhc->start_pkt_count)
+ _ifxhcd->pkt_remaining -= _ifxhc->start_pkt_count;
+ else
+ _ifxhcd->pkt_remaining = 0;
+ }
+
+ #ifdef __EN_ISOC__
+ if (_ifxhc->ep_type == IFXUSB_EP_TYPE_ISOC)
+ {
+ /* Set up the initial PID for the transfer. */
+ #if 1
+ _ifxhc->data_pid_start = IFXUSB_HC_PID_DATA0;
+ #else
+ if (_ifxhc->speed == IFXUSB_EP_SPEED_HIGH)
+ {
+ if (_ifxhc->is_in)
+ {
+ if (_ifxhc->multi_count == 1)
+ _ifxhc->data_pid_start = IFXUSB_HC_PID_DATA0;
+ else if (_ifxhc->multi_count == 2)
+ _ifxhc->data_pid_start = IFXUSB_HC_PID_DATA1;
+ else
+ _ifxhc->data_pid_start = IFXUSB_HC_PID_DATA2;
+ }
+ else
+ {
+ if (_ifxhc->multi_count == 1)
+ _ifxhc->data_pid_start = IFXUSB_HC_PID_DATA0;
+ else
+ _ifxhc->data_pid_start = IFXUSB_HC_PID_MDATA;
+ }
+ }
+ else
+ _ifxhc->data_pid_start = IFXUSB_HC_PID_DATA0;
+ #endif
+ }
+ #endif
+
+ IFX_DEBUGPL(DBG_HCDV, "%s: Channel %d\n", __func__, _ifxhc->hc_num);
+ {
+ hctsiz_data_t hctsiz= { .d32=0 };
+
+ hctsiz.b.dopng = _ifxhc->epqh->do_ping;
+ _ifxhc->epqh->do_ping=0;
+
+ if(_ifxhc->is_in || _ifxhc->speed != IFXUSB_EP_SPEED_HIGH || _ifxhc->xfer_len==0)
+ hctsiz.b.dopng = 0;
+ if(_ifxhc->ep_type == IFXUSB_EP_TYPE_INTR || _ifxhc->ep_type == IFXUSB_EP_TYPE_ISOC)
+ hctsiz.b.dopng = 0;
+ if(_ifxhc->ep_type == IFXUSB_EP_TYPE_CTRL && _ifxhc->control_phase != IFXHCD_CONTROL_DATA )
+ hctsiz.b.dopng = 0;
+
+ hctsiz.b.xfersize = _ifxhc->xfer_len;
+ hctsiz.b.pktcnt = _ifxhc->start_pkt_count;
+ hctsiz.b.pid = _ifxhc->data_pid_start;
+ ifxusb_wreg(&hc_regs->hctsiz, hctsiz.d32);
+
+ IFX_DEBUGPL(DBG_HCDV, " Xfer Size: %d\n", hctsiz.b.xfersize);
+ IFX_DEBUGPL(DBG_HCDV, " Num Pkts: %d\n" , hctsiz.b.pktcnt);
+ IFX_DEBUGPL(DBG_HCDV, " Start PID: %d\n", hctsiz.b.pid);
+ }
+ IFX_DEBUGPL(DBG_HCDV, " DMA: 0x%08x\n", (uint32_t)(CPHYSADDR( ((uint32_t)(_ifxhc->xfer_buff))+ _ifxhc->xfer_count )));
+ ifxusb_wreg(&hc_regs->hcdma, (uint32_t)(CPHYSADDR( ((uint32_t)(_ifxhc->xfer_buff))+ _ifxhc->xfer_count )));
+
+ /* Start the split */
+ if (_ifxhc->split>0)
+ {
+ hcsplt_data_t hcsplt;
+ hcsplt.d32 = ifxusb_rreg (&hc_regs->hcsplt);
+ hcsplt.b.spltena = 1;
+ if (_ifxhc->split>1)
+ hcsplt.b.compsplt = 1;
+ else
+ hcsplt.b.compsplt = 0;
+
+ #if defined(__EN_ISOC__) && defined(__EN_ISOC_SPLIT__)
+ if (_ifxhc->ep_type == IFXUSB_EP_TYPE_ISOC)
+ hcsplt.b.xactpos = _ifxhc->isoc_xact_pos;
+ else
+ #endif
+ hcsplt.b.xactpos = IFXUSB_HCSPLIT_XACTPOS_ALL;// if not ISO
+ ifxusb_wreg(&hc_regs->hcsplt, hcsplt.d32);
+ IFX_DEBUGPL(DBG_HCDV, " SPLIT: XACT_POS:0x%08x\n", hcsplt.d32);
+ }
+
+ {
+ hcchar_data_t hcchar;
+ hcchar.d32 = ifxusb_rreg(&hc_regs->hcchar);
+// hcchar.b.multicnt = _ifxhc->multi_count;
+ hcchar.b.multicnt = 1;
+
+ if (_ifxhc->ep_type == IFXUSB_EP_TYPE_INTR || _ifxhc->ep_type == IFXUSB_EP_TYPE_ISOC)
+ {
+ hfnum.d32 = ifxusb_rreg(&core_if->host_global_regs->hfnum);
+ /* 1 if _next_ frame is odd, 0 if it's even */
+ hcchar.b.oddfrm = (hfnum.b.frnum & 0x1) ? 0 : 1;
+ }
+
+ #ifdef __DEBUG__
+ _ifxhc->start_hcchar_val = hcchar.d32;
+ if (hcchar.b.chdis)
+ IFX_WARN("%s: chdis set, channel %d, hcchar 0x%08x\n",
+ __func__, _ifxhc->hc_num, hcchar.d32);
+ #endif
+
+ /* Set host channel enable after all other setup is complete. */
+ hcchar.b.chen = 1;
+ hcchar.b.chdis = 0;
+ hcchar.b.epdir = _ifxhc->is_in;
+ _ifxhc->hcchar=hcchar.d32;
+ }
+
+ IFX_DEBUGPL(DBG_HCDV, " HCCHART: 0x%08x\n", _ifxhc->hcchar);
+
+ _ifxhc->phase=HC_STARTING;
+}
+
+/*!
+ \brief Attempts to halt a host channel. This function should only be called
+ to abort a transfer in DMA mode. Under normal circumstances in DMA mode, the
+ controller halts the channel when the transfer is complete or a condition
+ occurs that requires application intervention.
+
+ In DMA mode, always sets the Channel Enable and Channel Disable bits of the
+ HCCHARn register. The controller ensures there is space in the request
+ queue before submitting the halt request.
+
+ Some time may elapse before the core flushes any posted requests for this
+ host channel and halts. The Channel Halted interrupt handler completes the
+ deactivation of the host channel.
+ */
+int ifxhcd_hc_halt(ifxusb_core_if_t *_core_if,
+ ifxhcd_hc_t *_ifxhc,
+ ifxhcd_halt_status_e _halt_status)
+{
+ hcchar_data_t hcchar;
+ ifxusb_hc_regs_t *hc_regs;
+ hc_regs = _core_if->hc_regs[_ifxhc->hc_num];
+
+ WARN_ON(_halt_status == HC_XFER_NO_HALT_STATUS);
+
+ {
+ hprt0_data_t hprt0;
+ hprt0.d32 = ifxusb_rreg(_core_if->hprt0);
+ if(hprt0.b.prtena == 0)
+ return -1;
+ }
+
+ if (_halt_status == HC_XFER_URB_DEQUEUE ||
+ _halt_status == HC_XFER_AHB_ERR)
+ {
+ /*
+ * Disable all channel interrupts except Ch Halted. The URBD
+ * and EPQH state associated with this transfer has been cleared
+ * (in the case of URB_DEQUEUE), so the channel needs to be
+ * shut down carefully to prevent crashes.
+ */
+ hcint_data_t hcintmsk;
+ hcintmsk.d32 = 0;
+ hcintmsk.b.chhltd = 1;
+ ifxusb_wreg(&hc_regs->hcintmsk, hcintmsk.d32);
+
+ /*
+ * Make sure no other interrupts besides halt are currently
+ * pending. Handling another interrupt could cause a crash due
+ * to the URBD and EPQH state.
+ */
+ ifxusb_wreg(&hc_regs->hcint, ~hcintmsk.d32);
+
+ /*
+ * Make sure the halt status is set to URB_DEQUEUE or AHB_ERR
+ * even if the channel was already halted for some other
+ * reason.
+ */
+ _ifxhc->halt_status = _halt_status;
+ }
+
+ hcchar.d32 = ifxusb_rreg(&hc_regs->hcchar);
+ if (hcchar.b.chen == 0)
+ {
+ /*
+ * The channel is either already halted or it hasn't
+ * started yet. In DMA mode, the transfer may halt if
+ * it finishes normally or a condition occurs that
+ * requires driver intervention. Don't want to halt
+ * the channel again. In either Slave or DMA mode,
+ * it's possible that the transfer has been assigned
+ * to a channel, but not started yet when an URB is
+ * dequeued. Don't want to halt a channel that hasn't
+ * started yet.
+ */
+ _ifxhc->phase=HC_IDLE;
+ return -1;
+ }
+
+ if (_ifxhc->phase==HC_STOPPING)
+ {
+ /*
+ * A halt has already been issued for this channel. This might
+ * happen when a transfer is aborted by a higher level in
+ * the stack.
+ */
+ #ifdef __DEBUG__
+ IFX_PRINT("*** %s: Channel %d, double halt a channel***\n",
+ __func__, _ifxhc->hc_num);
+ #endif
+ return 0;
+ }
+ hcchar.d32 = ifxusb_rreg(&hc_regs->hcchar);
+ hcchar.b.chen = 1;
+ hcchar.b.chdis = 1;
+
+ ifxusb_wreg(&hc_regs->hcchar, hcchar.d32);
+
+ _ifxhc->halt_status = _halt_status;
+ _ifxhc->phase=HC_STOPPING;
+
+ IFX_DEBUGPL(DBG_HCDV, "%s: Channel %d\n" , __func__, _ifxhc->hc_num);
+ IFX_DEBUGPL(DBG_HCDV, " hcchar: 0x%08x\n" , hcchar.d32);
+ IFX_DEBUGPL(DBG_HCDV, " halt_status: %d\n" , _ifxhc->halt_status);
+
+ return 0;
+}
+
+/*!
+ \brief Clears a host channel.
+ */
+void ifxhcd_hc_cleanup(ifxusb_core_if_t *_core_if, ifxhcd_hc_t *_ifxhc)
+{
+ ifxusb_hc_regs_t *hc_regs;
+
+ _ifxhc->phase=HC_IDLE;
+ _ifxhc->epqh=0;
+
+ /*
+ * Clear channel interrupt enables and any unhandled channel interrupt
+ * conditions.
+ */
+ hc_regs = _core_if->hc_regs[_ifxhc->hc_num];
+ ifxusb_wreg(&hc_regs->hcintmsk, 0);
+ ifxusb_wreg(&hc_regs->hcint, 0xFFFFFFFF);
+
+ #ifdef __DEBUG__
+ {
+ hcchar_data_t hcchar;
+ hcchar.d32 = ifxusb_rreg(&hc_regs->hcchar);
+ if (hcchar.b.chdis)
+ IFX_WARN("%s: chdis set, channel %d, hcchar 0x%08x\n", __func__, _ifxhc->hc_num, hcchar.d32);
+ }
+ #endif
+}
+
+
+
+
+
+#ifdef __DEBUG__
+ static void dump_urb_info(struct urb *_urb, char* _fn_name)
+ {
+ IFX_PRINT("%s, urb %p\n" , _fn_name, _urb);
+ IFX_PRINT(" Device address: %d\n", usb_pipedevice(_urb->pipe));
+ IFX_PRINT(" Endpoint: %d, %s\n" , usb_pipeendpoint(_urb->pipe),
+ (usb_pipein(_urb->pipe) ? "IN" : "OUT"));
+ IFX_PRINT(" Endpoint type: %s\n",
+ ({ char *pipetype;
+ switch (usb_pipetype(_urb->pipe)) {
+ case PIPE_CONTROL: pipetype = "CONTROL"; break;
+ case PIPE_BULK: pipetype = "BULK"; break;
+ case PIPE_INTERRUPT: pipetype = "INTERRUPT"; break;
+ case PIPE_ISOCHRONOUS: pipetype = "ISOCHRONOUS"; break;
+ default: pipetype = "UNKNOWN"; break;
+ };
+ pipetype;
+ }));
+ IFX_PRINT(" Speed: %s\n",
+ ({ char *speed;
+ switch (_urb->dev->speed) {
+ case USB_SPEED_HIGH: speed = "HIGH"; break;
+ case USB_SPEED_FULL: speed = "FULL"; break;
+ case USB_SPEED_LOW: speed = "LOW"; break;
+ default: speed = "UNKNOWN"; break;
+ };
+ speed;
+ }));
+ IFX_PRINT(" Max packet size: %d\n",
+ usb_maxpacket(_urb->dev, _urb->pipe, usb_pipeout(_urb->pipe)));
+ IFX_PRINT(" Data buffer length: %d\n", _urb->transfer_buffer_length);
+ IFX_PRINT(" Transfer buffer: %p, Transfer DMA: %p\n",
+ _urb->transfer_buffer, (void *)_urb->transfer_dma);
+ IFX_PRINT(" Setup buffer: %p, Setup DMA: %p\n",
+ _urb->setup_packet, (void *)_urb->setup_dma);
+ IFX_PRINT(" Interval: %d\n", _urb->interval);
+ if (usb_pipetype(_urb->pipe) == PIPE_ISOCHRONOUS)
+ {
+ int i;
+ for (i = 0; i < _urb->number_of_packets; i++)
+ {
+ IFX_PRINT(" ISO Desc %d:\n", i);
+ IFX_PRINT(" offset: %d, length %d\n",
+ _urb->iso_frame_desc[i].offset,
+ _urb->iso_frame_desc[i].length);
+ }
+ }
+ }
+
+#if 0
+ static void dump_channel_info(ifxhcd_hcd_t *_ifxhcd, ifxhcd_epqh_t *_epqh)
+ {
+ if (_epqh->hc != NULL)
+ {
+ ifxhcd_hc_t *hc = _epqh->hc;
+ struct list_head *item;
+ ifxhcd_epqh_t *epqh_item;
+
+ ifxusb_hc_regs_t *hc_regs;
+
+ hcchar_data_t hcchar;
+ hcsplt_data_t hcsplt;
+ hctsiz_data_t hctsiz;
+ uint32_t hcdma;
+
+ hc_regs = _ifxhcd->core_if.hc_regs[hc->hc_num];
+ hcchar.d32 = ifxusb_rreg(&hc_regs->hcchar);
+ hcsplt.d32 = ifxusb_rreg(&hc_regs->hcsplt);
+ hctsiz.d32 = ifxusb_rreg(&hc_regs->hctsiz);
+ hcdma = ifxusb_rreg(&hc_regs->hcdma);
+
+ IFX_PRINT(" Assigned to channel %d:\n" , hc->hc_num);
+ IFX_PRINT(" hcchar 0x%08x, hcsplt 0x%08x\n", hcchar.d32, hcsplt.d32);
+ IFX_PRINT(" hctsiz 0x%08x, hcdma 0x%08x\n" , hctsiz.d32, hcdma);
+ IFX_PRINT(" dev_addr: %d, ep_num: %d, is_in: %d\n",
+ hc->dev_addr, hc->ep_num, hc->is_in);
+ IFX_PRINT(" ep_type: %d\n" , hc->ep_type);
+ IFX_PRINT(" max_packet_size: %d\n", hc->mps);
+ IFX_PRINT(" data_pid_start: %d\n" , hc->data_pid_start);
+ IFX_PRINT(" halt_status: %d\n" , hc->halt_status);
+ IFX_PRINT(" xfer_buff: %p\n" , hc->xfer_buff);
+ IFX_PRINT(" xfer_len: %d\n" , hc->xfer_len);
+ IFX_PRINT(" epqh: %p\n" , hc->epqh);
+ IFX_PRINT(" NP :\n");
+ list_for_each(item, &_ifxhcd->epqh_list_np)
+ {
+ epqh_item = list_entry(item, ifxhcd_epqh_t, ql);
+ IFX_PRINT(" %p\n", epqh_item);
+ }
+ IFX_PRINT(" INTR :\n");
+ list_for_each(item, &_ifxhcd->epqh_list_intr)
+ {
+ epqh_item = list_entry(item, ifxhcd_epqh_t, ql);
+ IFX_PRINT(" %p\n", epqh_item);
+ }
+ #ifdef __EN_ISOC__
+ IFX_PRINT(" ISOC:\n");
+ list_for_each(item, &_ifxhcd->epqh_list_isoc)
+ {
+ epqh_item = list_entry(item, ifxhcd_epqh_t, ql);
+ IFX_PRINT(" %p\n", epqh_item);
+ }
+ #endif
+ }
+ }
+#endif
+#endif //__DEBUG__
+
+
+/*!
+ \brief This function writes a packet into the Tx FIFO associated with the Host
+ Channel. For a channel associated with a non-periodic EP, the non-periodic
+ Tx FIFO is written. For a channel associated with a periodic EP, the
+ periodic Tx FIFO is written. This function should only be called in Slave
+ mode.
+
+ Upon return the xfer_buff and xfer_count fields in _hc are incremented by
+ then number of bytes written to the Tx FIFO.
+ */
+
+#ifdef __ENABLE_DUMP__
+ void ifxhcd_dump_state(ifxhcd_hcd_t *_ifxhcd)
+ {
+ int num_channels;
+ int i;
+ num_channels = _ifxhcd->core_if.params.host_channels;
+ IFX_PRINT("\n");
+ IFX_PRINT("************************************************************\n");
+ IFX_PRINT("HCD State:\n");
+ IFX_PRINT(" Num channels: %d\n", num_channels);
+ for (i = 0; i < num_channels; i++) {
+ ifxhcd_hc_t *hc = &_ifxhcd->ifxhc[i];
+ IFX_PRINT(" Channel %d:\n", hc->hc_num);
+ IFX_PRINT(" dev_addr: %d, ep_num: %d, ep_is_in: %d\n",
+ hc->dev_addr, hc->ep_num, hc->is_in);
+ IFX_PRINT(" speed: %d\n" , hc->speed);
+ IFX_PRINT(" ep_type: %d\n" , hc->ep_type);
+ IFX_PRINT(" mps: %d\n", hc->mps);
+ IFX_PRINT(" data_pid_start: %d\n" , hc->data_pid_start);
+ IFX_PRINT(" xfer_buff: %p\n" , hc->xfer_buff);
+ IFX_PRINT(" xfer_len: %d\n" , hc->xfer_len);
+ IFX_PRINT(" xfer_count: %d\n" , hc->xfer_count);
+ IFX_PRINT(" halt_status: %d\n" , hc->halt_status);
+ IFX_PRINT(" split: %d\n" , hc->split);
+ IFX_PRINT(" hub_addr: %d\n" , hc->hub_addr);
+ IFX_PRINT(" port_addr: %d\n" , hc->port_addr);
+ #if defined(__EN_ISOC__) && defined(__EN_ISOC_SPLIT__)
+ IFX_PRINT(" isoc_xact_pos: %d\n" , hc->isoc_xact_pos);
+ #endif
+
+ IFX_PRINT(" epqh: %p\n" , hc->epqh);
+ IFX_PRINT(" short_rw: %d\n" , hc->short_rw);
+ IFX_PRINT(" control_phase: %d\n" , hc->control_phase);
+ if(hc->epqh)
+ {
+ IFX_PRINT(" do_ping: %d\n" , hc->epqh->do_ping);
+ }
+ IFX_PRINT(" start_pkt_count: %d\n" , hc->start_pkt_count);
+ }
+ IFX_PRINT("************************************************************\n");
+ IFX_PRINT("\n");
+ }
+#endif //__ENABLE_DUMP__
+