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Diffstat (limited to 'package/kernel/lantiq/ltq-hcd/src/ifxhcd.c')
| -rw-r--r-- | package/kernel/lantiq/ltq-hcd/src/ifxhcd.c | 2141 |
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__ + |